LAMP

专利摘要:
A lamp (100) includes a substrate (110), a heat dissipation element (150), an optical element (130), and a heat transfer element (190). The optical element, the substrate and the heat dissipating element are stacked in this order. An element of the heat dissipating element and an element of the optical element or an element of the heat dissipating element and an element of the substrate have first end sides fixed to each other by a fixing mechanism, and their other end sides are hooked and fixed so as to prevent the two elements from being displaced in a direction away from each other, the heat transfer element being disposed between one of the first end sides and one of the other end sides constituting a fulcrum and one of the first end sides constituting a point of force application.
公开号:FR3039632A1
申请号:FR1657243
申请日:2016-07-27
公开日:2017-02-03
发明作者:Yuji Yasuda；Takaaki Komatsu；Ippei Yamamoto
申请人:Koito Manufacturing Co Ltd；
IPC主号:

专利说明:

BACKGROUND TECHNICAL FIELD [0001]
The present invention relates to a lamp. ASSOCIATED TECHNIQUE [0002]
A vehicle lamp is known including a substrate having an LED as a light source mounted thereon and a heat dissipating plate disposed on the side opposite the light source mounting surface of the substrate (see, for example the patent document 1). In this vehicle lamp, an insulation sheet is provided between the substrate and the heat dissipation plate. In this way, the insulation and the thermal conductivity between the substrate and the heat dissipation plate are guaranteed.
[0003]
Patent Document 1: Japanese Patent Open Publication No. 2015-46 235.
[0004]
In the vehicle lamp having the structure described above, it is possible that the substrate is deformed when the substrate and the heat dissipating plate are fixed to each other by fastening elements such as screws. When the substrate is deformed, there is a risk that a positional deviation of the light source will occur. In addition, the positional deviation of the light source can lead to a decrease in the accuracy of forming a light distribution pattern.
[0005]
In the vehicle lamp, the demand for improving the precision of formation of the light distribution pattern has increased in recent years. There is therefore a demand to eliminate the positional deviation of the light source, which may be a factor in decreasing the precision of formation of the light distribution pattern. It is therefore desirable to eliminate the deformation of the substrate in order to eliminate the positional deviation of the light source.
In addition, the request to suppress the positional deviation of the light source is not limited to a vehicle lamp but can also be applied to general lighting. SUMMARY [0006]
Exemplary embodiments of the invention provide a lamp capable of suppressing the deformation of a substrate on which a light source is mounted.
[0007]
A lamp according to an exemplary embodiment of the invention comprises: a substrate having a light source mounting surface; a heat sink element configured to dissipate heat from a light source mounted on the light source mounting surface; an optical element configured to deflect light emitted from the light source mounted on the light source mounting surface; and a heat transfer member having at least one of a flexibility or elasticity characteristic and configured to transfer heat from the light source mounted on the light source mounting surface of the substrate to the heat dissipating element, wherein the optical element, the substrate and the heat dissipating element are arranged (stacked) in this order, wherein the heat transfer element is disposed in a position between the substrate and the heat dissipating member and covers at least the light source mounted on the light source mounting surface, viewed from the stacking direction of the substrate and the heat dissipating member, wherein a element of the heat dissipating element and an element of the optical element or an element of the heat dissipating element and a substrate element, have first secured to each other by a fastening mechanism, and have other end-faces hooked and secured so as to prevent both members from moving in a direction away from each other, the heat transfer element being disposed between one of the first end sides and one of the other end sides constituting a fulcrum and one of the first end sides constituting a point of force application.
According to this aspect, it is possible to eliminate the deformation of the substrate on which the light source is mounted.
[0008]
One of the two elements may have a jaw portion on its other end side and the other of the two elements being hooked to the jaw portion. Alternatively, one of the two elements may include a locking portion extending substantially parallel to the stacking direction and having an opening, and an end of the other end side of the other of the two elements being insertable through the opening of the first of the two elements, so that the other of the two elements is thus hooked and fixed to the first of the two elements.
According to these aspects, it is possible to eliminate the deformation of the substrate.
[0009]
The fastening mechanism may comprise an attachment member, the heat dissipating member having a first portion in contact with the heat transfer member in a thermally conductive manner, a second portion having an insertion hole for the attachment member and a connecting portion for connecting the first portion and the second portion to each other, and the first portion and the second portion are separated from each other in a region excluding the connecting part.
According to this aspect, it is possible to further suppress the deformation of the substrate. The heat dissipating element may have a narrow portion and a wide portion in a region from one end of the connecting portion in contact with the first portion to the insertion hole of the second portion, the width of the the narrow part being smaller than the width of the wide part.
According to this aspect, it is possible to further suppress the deformation of the substrate.
[0010]
According to the present invention, it is possible to suppress the deformation of a substrate on which a light source is mounted.
BRIEF DESCRIPTION OF THE DRAWINGS The invention will be better understood and its advantages will be better understood on reading the detailed description which follows. The description refers to the following drawings, which are given by way of example.
[0011]
Figure 1 is a sectional view schematically showing a vehicle headlight device including a lamp according to a first embodiment.
Figure 2 is a perspective view schematically showing the lamp according to the first embodiment.
Fig. 3A is a sectional view through the line A-A shown in Fig. 2 and Fig. 3B is an enlarged plan view showing a portion of a heat sink included in the lamp according to the first embodiment.
Fig. 4A is a sectional view schematically showing the lamp according to the first embodiment and Fig. 4B is a sectional view schematically showing a lamp according to a comparative example.
Figure 5 is a sectional view schematically showing a lamp according to a second embodiment.
Fig. 6 is a sectional view schematically showing a lamp according to a third embodiment.
Fig. 7 is a sectional view schematically showing a lamp according to a fourth embodiment.
Fig. 8 is a sectional view schematically showing a lamp according to a fifth embodiment.
Fig. 9 is a sectional view schematically showing a lamp according to a sixth embodiment.
Fig. 10 is a sectional view schematically showing a lamp according to a seventh embodiment.
Fig. 11A is a sectional view schematically showing a lamp according to an eighth embodiment and Fig. 11B is a plan view schematically showing a heat sink included in the lamp according to the eighth embodiment.
Fig. 12 is a sectional view schematically showing a lamp according to a ninth embodiment.
Fig. 13A is a perspective view schematically showing a lamp according to a tenth embodiment, Figs. 13B, 13C and 13E are schematic views showing an example of a light distribution pattern formed by the lamp according to the tenth embodiment; Fig. 13D is a schematic view showing an example of a light distribution pattern formed by a lamp according to a comparative example.
DETAILED DESCRIPTION
[0012]
A preferred embodiment of the present invention will be described hereinafter with reference to the drawings. Similar elements, organs and processes shown in each of the drawings are represented by the same or similar reference signs and the repetition of their description will be omitted as appropriate. In addition, the embodiment is explanatory and is not intended to limit the present invention. It will be appreciated that not all features and combinations thereof described in the embodiments are necessarily considered an essential part of the present invention. In addition, the terms "first, second, etc. Used in the present description or the claims do not represent any order of importance but are intended to distinguish a configuration from other configurations.
[First embodiment]
Figure 1 is a sectional view schematically showing a vehicle headlight device including a lamp according to a first embodiment. Figure 2 is a perspective view schematically showing the lamp according to the first embodiment. Fig. 3A is a sectional view through the line A-A shown in Fig. 2 and Fig. 3B is an enlarged plan view showing a portion of a heat sink included in the lamp according to the first embodiment. On the other hand, Figure 2 shows a state in which no fastening mechanism is attached to the lamp. Fig. 3A shows a state in which no fastening element of the fastening mechanism is attached. The scale or shape of each part shown in each drawing is conveniently determined for ease of explanation and should not be interpreted restrictively unless otherwise indicated.
[0014]
A lamp 100 (100A) according to the present embodiment is mounted for example on a vehicle headlight device 10. The vehicle headlight device 10 has a pair of headlight units disposed on the left and right sides of the vehicle headlamp device 10. before the vehicle. Since the units of the pair of headlight units have substantially the same configuration except that they have a bilaterally symmetrical structure, Fig. 1 shows one of the headlight units as a vehicle headlight device. .
[0015]
The vehicle headlight device 10 comprises a lamp body 11 and a transparent outer cover 12 for covering the front opening of the lamp body 11. The lamp body 11 and the outer cover 12 define a lamp chamber 13. The The lamp 100 (also referred to as a lamp unit) is received in the lamp chamber 13. The lamp 100 is configured to radiate, for example, at least one of a traffic light distribution pattern and a pattern of low beam light distribution.
[0016]
The lamp 100 is supported on the lamp body 11 via a console 50. The console 50 is formed for example of a resin material. A first tilting element 55 and a second tilting element 57 are attached to the console 50. The first tilting element 55 comprises a sighting screw 55a attached to the lamp body 11, a tapped portion 55b provided in the console 50 and a control portion 55c provided on the outside of the lamp body 11. An end side of the sighting screw 55a is inserted into the threaded portion 55b and its other end side is connected to the adjustment portion. 55c.
[0017]
The second inclination member 57 has a ball seal 57a attached to the lamp body 11, a socket 57b for holding a ball of the ball joint 57a and a hole portion 57c provided in the bracket 50. The plug 57b is inserted in the hole portion 57c. On the other hand, in the present embodiment, a sighting mechanism is connected to the console 50. However, the present invention is not particularly limited to this configuration. The sighting mechanism can for example be directly connected to the lamp 100 without using the console 50.
[0018]
When the aiming screw 55a is rotated through the adjusting portion 55c of the first inclination member 55, the bracket 50 is inclined with respect to the lamp body 11, the ball seal ball 57a of the second tilting element 57 constituting a fulcrum. In this way, the optical axis of the lamp 100 can be adjusted.
[0019]
The lamp 100 comprises a substrate 110 (110A), an optical element 130 (130A), a heat dissipating element 150 (150A), a fastening mechanism 170 (170A) and a heat transfer element 190. The element 130, the substrate 110 and the heat dissipating element 150 are arranged (stacked) in this order. The heat transfer element 190 is disposed between the substrate 110 and the heat dissipating element 150.
[0020]
The substrate 110 is a substantially plate-shaped member for supporting a light source 111. The substrate 110 has a light source mounting surface 112. The light source 111 is mounted on the light source mounting surface 112. The light source 111 is for example an LED. More specifically, the light source 111 is for example a SMD-type LED package and the size of its light emitting surface and 1 mm 2. In the present embodiment, the main surface of the vertically downwardly facing substrate 110 is configured as the light source mounting surface 112. In addition, the light source 111 is mounted on the source mounting surface of the light source. light 112 so that the light-emitting surface is turned vertically downward. A wiring pattern (not shown) is formed on the light source mounting surface 112. The light source 111 is electrically connected to the wiring pattern. The thickness of the substrate 110 is for example 1.6 mm.
[0021]
The substrate 110 may for example be a FR4 substrate. An FR4 substrate is a double-sided substrate having a conductive pattern disposed on both sides thereof. Accordingly, when the substrate 110 is a FR4 substrate, the substrate 110 is thermally connected to the heat dissipating member 150 through an insulating member, preferably such as a TIM thermal interface).
On the other hand, the lamp 100 of the present embodiment has a predetermined disposition such that the light emitting surface of the light source 111 is turned vertically downward. However, the present invention is not particularly limited to this configuration. The lamp 100 may for example have a determined disposition such that the normal to the light emitting surface of the light source 111 is parallel to a horizontal plane. Further, for example, the lamp 100 may assume a state rotated 90 degrees about the optical axis with respect to the state shown in Fig. 1 and the light emitting surface of the Light source 111 can be turned to the side of the lamp. Alternatively, the lamp 100 may have a predetermined disposition such that the light emitting surface of the light source 111 is turned vertically upwardly. The angle of installation of the lamp 100 can be chosen appropriately.
[0023]
In addition, the substrate 110 has an opening 113 in an overlapping region with a boss portion 133 (to be described later) in the stacking direction A (direction represented by the arrow A in FIG. optical element 130, the substrate 110 and the heat dissipating element 150.
The optical element 130 is an element for deflecting the light emitted by the light source 111 mounted on the light source mounting surface 112. In the present embodiment, the optical element 130 is a reflector for reflecting the light emitted by the light source 111. Accordingly, the lamp 100 of the present embodiment is a reflection type vehicle lamp. The optical element 130 is disposed on the side of the light source mounting surface 112 of the substrate 110. The optical element 130 has a flat plate-shaped base portion 131 in contact with the substrate 110 and a reflective portion 132. curved downwardly relative to the base portion 131 and extending towards the front of the vehicle.
[0025]
The base portion 131 has an opening 131a for a light source in a region overlapping with the light source 111, seen from the stacking direction A. The thickness of the base portion 131 is, for example, 2.0 at 3.0 mm. The reflective portion 132 has a reflecting surface 132a for reflecting the light of the light source 111 mounted on the light source mounting surface 112 toward the front of the lamp. The reflecting surface 132a is a surface having, for example, a paraboloid of revolution as a basic form. The central axis of rotation of the paraboloid of revolution serves as the optical axis of the optical element 130. Accordingly, the lamp 100 of the present embodiment is a vehicle lamp of the so-called parabolic type.
The optical element 130 is arranged in such a way that the optical axis is turned towards the longitudinal direction of the vehicle. The light source 111 is disposed in the light source aperture 131a and its light emitting surface is substantially opposite to the reflecting surface 132a. The opposing relationship between the light source 111 and the reflecting surface 132a is determined such that the focus of the reflecting surface 132a overlaps the light source 111. In addition, the optical element 130 includes the projection portion 133 .
[0027]
The boss portion 133 is provided in the base portion 131 and protrudes toward the opposite side of the substrate 110. The boss portion 133 is disposed at the rear side of the light source 111 in an end side of the element. 130, in the present embodiment, in the rear end side (hereinafter referred to as the "rear end side") in the longitudinal direction of the lamp 100. In addition, the boss portion 133 is disposed the rear side of the reflective portion 132. The boss portion 133 has a fixing hole 133a into which is screwed a fastener 172 (to be described later). The optical element 130 is formed by depositing aluminum on a region, for example, of a molded resin substrate corresponding at least to the reflective surface 132a.
On the other hand, the optical element 130 is not limited to the reflector but may be another optical element such as a projection lens. When the optical element 130 is a projection lens, the lamp 100 is an optical system vehicle lamp said PES. In addition, the optical element 130 may be a combination of the projection lens and the reflector. In addition, the lamp 100 can be used as a direct projection type vehicle lamp without including the optical element 130. In addition, Fig. 2 shows a structure in which three sets of combinations of the light source 111 and of the reflective portion 132 are included and arranged in the lateral direction of the lamp. However, the number and arrangement of the light source 111 and the reflective portion 132 are not particularly limited.
The heat dissipating element 150 is an element which is formed for example of an aluminum plate, a steel plate or SUS and the like and dissipates the heat generated by the light source 111 mounted on the light source mounting surface 112. When the heat dissipating member 150 is provided, the heat dissipating property of the light source 111 can be improved. The heat dissipating member 150 is disposed on the opposite side to the light source mounting surface 112 of the substrate 110. The heat dissipating member 150 includes a first portion 151, a second portion 152, a connecting portion 153 and a jaw portion 154. The thickness of the heat dissipating member 150 is, for example, 0.5 to 1.5 mm. In the present embodiment, the thicknesses of the first portion 151, the second portion 152, the connecting portion 153, and the jaw portion 154 are the same. However, the present invention is not particularly limited to this configuration.
[0030]
The first portion 151 has a flat plate shape and is in contact with the heat transfer member 190 in a thermally conductive manner. The first portion 151 has an opening 151a in a region superimposed with the boss portion 133 in the stacking direction A.
[0031]
The second portion 152 is disposed in a lap region with the opening 151a in the stacking direction A. Accordingly, the second portion 152 is disposed on an end side (in the present embodiment, the rear end) of the heat dissipating member 150. The second portion 152 has an insertion hole 152a for the attachment member 172 (to be described later) and a fixing seat surface 152b disposed around the insertion hole 152a.
[0032]
The connecting portion 153 connects the first portion 151 and the second portion 152. The second portion 152 is connected to the first portion 151 through the connecting portion 153. Accordingly, the first portion 151 and the second portion 152. The second portion 152 is connected to the first portion 151 through the connecting portion 153. portion 151 and the second portion 152 are separated from each other at the region excluding the portion to which the connecting portion 153 is connected.
The heat dissipating element 150 may be formed by providing notches corresponding to the shape of the second portion 152 and the connecting portion 153 in predetermined positions, for example, an aluminum plate.
[0034]
As shown in FIG. 3B, the heat sink element 150 has a narrow portion T having a relatively small width and a wide portion W having a relatively large width in the region extending from the end 153a of the connecting portion 153. in contact with the first portion 151 to the insertion hole 152a of the second portion 152. For example, the region where the narrow portion T and the wide portion W are provided extends from the end 153a to the end. of the insertion hole 152a closest to the connection portion 153. In the present embodiment, the entire connecting portion 153 constitutes the narrow portion T and all of the second portion 152 constitutes the wide portion W. The "width" of the narrow portion T and the wide portion W here means the dimension in a direction perpendicular to the direction in which, for example, the end 153a and the end of the connection portion 153 in contact with the second portion 152.
[0035]
In other words, the heat sink element 150 has a portion where two side surfaces are separated from each other in a stepwise manner toward the insertion hole 152a from the end 153a of the Connecting part 153. These side surfaces refer to surfaces which connect a surface (main surface) of the connecting portion 153 and the second portion 152 facing the substrate 110 and a surface (main surface) opposite to the surface. In the present embodiment, the two side surfaces are separated from one another by a rung. However, the two side surfaces can be separated from one another several steps. In addition, the distance between the two side surfaces can be increased in a continuous manner. Further, the heat dissipating member 150 may have a portion where the two side surfaces approach one another in a stepwise fashion or continuously to the insertion hole 152a since end 153a. In this case, the narrow portion T is provided in a position separate from the end 153a.
[0036]
In addition, an area of the section of the narrow portion T perpendicular to the direction in which the end 153a is arranged and the end of the connecting portion 153 in contact with the second portion 152 is smaller than that of the cross section. the wide part W perpendicular to this direction. In addition, for example, the width of the narrow portion T is smaller than that of the region of the fixing seat surface 152b with which a head portion of the fastening element 172 is in contact. on the other hand, the narrow part T and the wide part W may have various shapes and arrangements.
[0037]
The narrow portion T may be provided for example in a portion of the connecting portion 153 or part of the second portion 152. In this case, the narrow portion T may be a constricted portion formed by cutting the lateral end of the the connecting portion 153 or the second portion 152 and having a locally narrow width. In other words, the narrow portion T may have a shape in which two side surfaces are close to each other in a stepwise manner or continuously to the insertion hole side 152a since the side of the end 152a and are then separated from each other in a stepwise manner or in a continuous manner. In addition, the narrow portion T may be provided for example in the whole of the connecting portion 153 and part of the second portion 152. In addition, the entire second portion 152 may constitute the narrow portion T and the entire the connecting portion 153 may constitute the wide portion W. In addition, an opening may be provided in the connecting portion 153 or in the second portion 152 and the narrow portion T may be an edge portion of the opening.
[0038]
The jaw portion 154 is a part that connects the optical element 130 and the heat sink element 150 to each other by hooking them to one end of the optical element 130. The jaw portion 154 is disposed on the other end side of the heat sink element 150, in the present embodiment, in the front end side (hereinafter referred to as the "front end side") in the direction longitudinal direction of the lamp 100. The light source 111 is disposed between the jaw portion 154 and the second portion 152 in the longitudinal direction of the lamp 100. The jaw portion 154 is formed, for example, by causing the end before the first part 151.
[0039]
The jaw portion 154 has a vertical portion 154a and a parallel portion 154b. The vertical portion 154a extends substantially parallel to the stacking direction A, in other words, in a direction intersecting the direction of extension of the first portion 151 or the substrate 110. The parallel portion 154b extends in parallel at the base portion 131 from the lower end of the vertical portion 154a. Further, the vertical portion 154a extends to the optical element 130 from the front end surface of the first portion 151, and the parallel portion 154b extends to the boss portion 133 from the lower end surface. of the vertical portion 154a. Accordingly, the jaw portion 154 has a substantially L-shaped section. In addition, the leading end (portion including the leading ends of the first portion 151 and the jaw portion 154) of the dissipating element heat 150 has a substantially U-shaped section.
[0040]
When the jaw portion 154 is hooked to the front end of the base portion 131, the optical member 130 and the heat dissipating member 150 are hung and secured. When the optical element 130 and the heat dissipating element 150 are hooked and fixed, the sandwiched substrate 110 sandwiched between them is also fixed. In the state in which the optical element 130 and the heat dissipating element 150 are hung and fixed, the end surface of the base portion 131 facing the front side of the lamp is in contact with the vertical 154a and the major surface of the base portion 131 opposite the substrate 110 is in contact with the parallel portion 154b. On the other hand, in the present embodiment, the front end surface of the substrate 110 is also in contact with the vertical portion 154a.
[0041]
The attachment mechanism 170 is a mechanism for securing the optical element 130 and the heat dissipating element 150 to an end side thereof, i.e., to an end side opposite to the end where they are both hooked and fixed. When the optical element 130 and the heat dissipating element 150 are fixed by the fixing mechanism 170, the sandwiched substrate 110 is also fixed. Although the fastening mechanism 170 may have any structure, the fastening mechanism 170 of the present embodiment includes the fastener 172. The fastener 172 is, for example, a screw.
[0042]
As shown in FIG. 1 or FIG. 3A, the substrate 110 and the heat dissipating element 150 are disposed on the base portion 131 of the optical element 130. In addition, the jaw portion 154 is attached to the the front end of the optical element 130 and thus, the substrate 110 and the heat dissipating element 150 are stacked on the base portion 131. In this state, the fixing hole 133a, the opening 113 and the hole In addition, the attachment member 172 is inserted into the insertion hole 152a and the opening 113 and is attached to the fixing holes 133a. The head portion of the fastener member 172 is in contact with the fastening seat surface 152b. In this way, the substrate 110, the optical element 130 and the heat dissipating element 150 can be fixed to each other. An attachment structure of the substrate 110, the optical element 130 and the heat dissipating element 150 will be described in detail below.
The heat transfer member 190 is an element that transfers heat from the light source 111 mounted on the light source mounting surface 112 of the substrate 110 to the heat sink element 150. The heat transfer element 190 is disposed in a position between the substrate 110 and the heat dissipating element 150 and covers the light source 111, seen from the stacking direction A. On the other hand, the element heat transfer device 190 can be arranged in an overlapping position with at least the light source 111, seen from the stacking direction A. Accordingly, the heat transfer element 190 can be disposed in the entire region between the substrate 110 and the heat dissipating element 150, for example. The heat transfer member 190 has characteristics giving it some flexibility or elasticity.
The heat transfer element 190 is an insulating heat transfer sheet having characteristics giving it some flexibility or elasticity. In addition, the heat transfer member 190 may comprise TMIs (thermal interface materials) such as a thermally conductive grease or a thermally conductive glue. When the heat transfer element 190 is interposed between the substrate 110 and the heat dissipating element 150, the heat conduction between the substrate 110 and the heat dissipating element 150 can be reliably ensured, thereby improving the heat dissipation property of the light source 111. When the heat transfer member 190 is a heat transfer sheet, the heat transfer member 197 is sandwiched and compressed between the substrate 110 and the heat dissipating element 150. The thickness of the heat transfer element 190 in the compressed state is, for example, 0.5 to 2.0 mm. When the heat transfer member 190 is a thermally conductive grease, the thermally conductive grease is applied to the substrate 110 or to the first portion 151 and is then spread when sandwiched and compressed between the substrate 110 and the substrate. second part 151. In this way, the heat transfer element 190 having a thickness of, for example, 20 to 100 μm is formed.
[0045]
An attachment structure of the substrate 110, the optical element 130 and the heat dissipating element 150 is then described in detail. Fig. 4A is a sectional view schematically showing lamp 100 according to the first embodiment and Fig. 4B is a sectional view showing schematically a lamp according to a comparative example.
[0046]
As shown in Fig. 4A, in the lamp 100 according to the present embodiment, the optical element 130 and the heat sink element 150 are hung and fixed on its front end sides. In addition, the optical element 130 and the heat dissipating element 150 are attached to their rear end sides by means of the fastening element 172 of the fastening mechanism 170. The substrate 110 is sandwiched between the optical element 130 and the heat dissipating element 150. Accordingly, the optical element 130 and the heat dissipating element 150 are fixed to each other and thus these three elements are fixed.
On the other hand, as shown in FIG. 4B, in a lamp 500 according to a comparative example, an optical element 530 and a heat dissipating element 550 are fixed at both their front end sides and at their front end. their rear end sides by means of the attachment member 172. In a region in which the attachment mechanism 170 is provided, a space corresponding to the thickness of the heat transfer member 190 is provided between a substrate 510 and heat dissipating element 550. Accordingly, when optical element 530 and heat dissipating element 550 are attached to each other by means of attachment member 172, the optical element 530, the substrate 510 and the heat dissipating element 550 are moved in a direction close to each other by means of the fixing of the fastening element 172.
[0048]
In addition, a compressive reaction force of the heat transfer member 190 is generated in an intermediate portion between the front end side and the rear end side. That is, a force in the direction in which the optical element 530, the substrate 510 and the heat dissipating element 550 are separated from each other is generated in the intermediate portion. Accordingly, when each portion is attached to both the front end side and the rear end side of the lamp 500 by means of the attachment member 172, deformation or deflection occurs in the substrate 510 When secured by the attachment mechanism 170, the substrate 510 and heat dissipating member 550 are generally moved until they contact each other.
On the other hand, the heat transfer element 190 has characteristics giving it some flexibility or elasticity. Accordingly, even when the heat transfer member 190 is present at an installation region of the fastening mechanism 170, the heat transfer member 190 in the installation region is compressed by the fastener. of the attachment member 172 and thus, the optical element 530, the substrate 510 and the heat dissipating element 550 are moved in a direction close to each other. As a result, the substrate 510 is deformed.
[0050]
In contrast, in the lamp 100 according to the present embodiment, the rear end sides of the optical element 130 and the heat dissipating element 150 are fixed by means of the attachment mechanism 170 and their sides of the front end are fixed by means of the hooked attachment. When the rear end sides of the optical element 130 and the heat dissipating element 150 are fixed by means of the fastening element 172 in the state in which the front end side of the optical element 130 is hooked by means of the jaw portion 154 of the heat dissipating element 150, a force in the direction in which the optical element 130 and the heat dissipating element 150 are separated from each other. the other, the rear end side constituting a point of force and an intermediate portion of the front end side and the rear end side constituting a fulcrum, is applied to the front end side. More specifically, when a force in the direction in which the optical element 130 and the heat sink element 150 are close to one another is applied to the rear end sides of the optical element. 130 and the heat dissipating element 150, a force in the direction in which the two elements are spaced from each other, the rear end side constituting a point of force and the intermediate part constituting a point. of support, is applied to the front end.
The front end of the optical element 130 is hooked by means of the jaw portion 154, so as to prevent the optical element 130 from being displaced in a direction away from the dissipation element. heat 150. That is to say with the attachment attached, the optical element 130 is prevented from being moved in a direction in which the other end side is spaced from the heat dissipating element 150, the heat transfer element 190 located between the first end side and the other end side constituting a fulcrum and the first end side constituting a point of force. Relatively, the displacement of the heat dissipating element 150 in a direction away from the optical element 130 is suppressed by the hanging attachment.
[0052]
The jaw portion 154 merely suppresses the displacement of the optical element 130 in a direction away from the heat sink element 150 but does not actively generate a force to allow the optical element 130 to approach the the heat dissipating element 150. Accordingly, with respect to the case where each part is fixed by the fastening element 172, the distance between the optical element 130, the substrate 110 and the heat dissipating element 150 approaching each other by fixing, can be reduced more reliably. Consequently, the deformation of the substrate 110 can be reduced more reliably, in relation to the case where each part is fixed by the fastening element 172.
On the other hand, the length of the vertical portion 154a of the jaw portion 154 can be adjusted so that the substrate 110 and the first portion 151 are slightly deformed in a direction approaching one another. in a range in which the substrate 110 and the first portion 151 are not in contact with each other. In this way, the contact of the substrate 110 and the heat transfer element 190 and the contact of the heat dissipating element 150 and the heat transfer element 190 are guaranteed by eliminating the deformation of the substrate 110 Accordingly, it is possible to more reliably improve the heat dissipation property of the light source 111. With respect to the case where each part is fixed by the fastening element 172, the deformation of the substrate 110 can be more reliably suppressed even when the length of the vertical portion 154a is set as described above.
[0054]
Further, in the present embodiment, the first portion 151 and the second portion 152 of the heat dissipating member 150 are separated from each other at the region excluding the portion to which the In this way, it is possible to prevent the transmission of the stress generated when the fastening element 172 is attached, from the second portion 152 to the first portion 151. Accordingly, the deformation of the substrate 110 may be also removed in the rear end side of the substrate 110.
[0055]
In addition, the heat dissipating element 150 has the narrow portion T and the wide portion W in a region extending from the end 153a of the connecting portion 153 to the insertion hole 152a of the second portion 152. two regions having different widths, the narrow portion T having a relatively narrow width naturally becomes smaller than the wide portion W having a relatively large width. As a result, as shown in FIG. 4A, the narrow portion T is deformed by the stress generated when the fastener 172 is attached. In this way, the stress generated when the fastening member 172 is attached can be absorbed in the narrow portion T. As a result, the deformation in the rear end side of the substrate 110 can be further suppressed.
[0056]
As described above, the lamp 100 according to the present embodiment comprises the substrate 110, the optical element 130, the heat dissipating element 150 and the heat transfer element 190. heat 190 is provided in a position between the substrate 110 and the heat sink element 150 and in overlap with at least the light source 111, seen from the stacking direction A. The heat dissipating element 150 and the optical element 130 are attached to each other on end sides thereof by means of the attachment mechanism 170. In addition, the heat sink element 150 and the optical element 130 are hung and attached to their other end sides to prevent them from moving in a direction away from each other, the heat transfer member 190 located between the first end side and the other end side constituting u n support point and the first end side constituting a point of force.
[0057]
In this way, the deformation of the substrate 110 can be suppressed. In addition, as a result, the positional deviation of the light source 111 mounted on the substrate 110 can be suppressed. When the light source 111 is moved away from the position in which the light source 111 should be arranged at the origin with respect to the optical element 130, the light intensity of a light distribution pattern projected onto the surface a road can be reduced and driver visibility can be reduced. In addition, the projection position of the light distribution pattern is discarded, thereby leading to the glare of an oncoming vehicle or pedestrian. From the point of view of the formation of the light distribution pattern for example, it is desirable that the accuracy of the mounting position of the light source 111 on the substrate 110 be less than or equal to 0.11 mm. Consequently, it is necessary that the positional deviation of the light source 111 due to the deformation of the substrate 110 is less than or equal to 0.1 mm. On the contrary, according to the lamp of the present embodiment, the decrease in the accuracy of formation of the light distribution pattern due to the decrease in light intensity and away from the projection position can be suppressed. Accordingly, by removing the deformation of the substrate 110, the disconnection of a wiring pattern formed on the substrate 110 or an increase in the load applied to the optical element 130 or the heat dissipating element 150 or the like may to be deleted.
[0058]
In addition, to suppress the deformation of the substrate 110 when both the leading end and the trailing end sides of the optical element 130 and the heat dissipating element 150 are attached by means of the mechanism. 170, it is necessary to design the arrangement of the fastening mechanism 170 or to strictly manage the fastening torque of the fastening member 172. In contrast, in the present embodiment, the deformation of the substrate 110 is suppressed by the hooked attachment of the optical element 130 and the heat dissipating element 150. Accordingly, the degree of freedom of design of the lamp 100 can be improved and the manufacturing process of the lamp 100 can be simplified.
[0059]
Further, in the present embodiment, the hooked attachment of the optical element 130 and the heat sink element 150 is realized by means of the jaw portion 154 provided in the heat sink element 150. As a result, the deformation of the substrate 110 can be suppressed with a simple configuration. In addition, with respect to the case where the front end side and the rear end side are fixed by means of the attachment mechanism 170, the number of pieces and the assembly hourly labor can be reduced. In addition, the jaw portion 154 may be freely arranged because it does not interfere with the passage of reflected light on the reflecting surface 132a, relative to the boss portion 133.
(Second embodiment)
A lamp 100 according to a second embodiment has the same configuration as the lamp 100 according to the first embodiment except that the heat dissipating element 150 does not include the second part 152 and the connecting part. 153. The configuration of the lamp 100 of the second embodiment which differs from that of the first embodiment is described in detail below and the configuration common to both embodiments is simply described or not described.
[0061]
Figure 5 is a sectional view schematically showing the lamp 100 according to the second embodiment. The lamp 100 (100B) according to the present embodiment comprises a substrate 110 (110B), an optical element 130 (130B), a heat dissipating element 150 (150B), a fastening mechanism 170 (170B) and an element The optical element 130, the substrate 110 and the heat dissipating element 150 are arranged (stacked) in this order. The heat transfer element 190 is disposed between the substrate 110 and the heat dissipating element 150. The substrate 110, the optical element 130, the fixing mechanism 170 and the heat transfer element 190 have the same structure as in the first embodiment.
The heat dissipating member 150 includes a first portion 151 and a jaw portion 154. The first portion 151 has a flat plate shape and is in contact with the heat transfer member 190 in a manner that thermally conductive. The first portion 151 has an insertion hole 151b for the attachment member 172 and a fixing seat surface 151c disposed around the insertion hole 151b in a lap region with a boss portion 133 in the direction A. The jaw portion 154 has the same configuration as in the first embodiment.
[0063]
In the present embodiment also, similarly to the first embodiment, end sides of the optical element 130 and the heat sink element 150 are secured by means of the attachment mechanism 170 and their other End sides are fixed by means of the hanging attachment. Thanks to the hooked attachment, the optical element 130 and the heat dissipating element 150 are prevented from being moved in a direction in which the other end sides are separated from each other, the element heat transfer device 190 located between the first end side and the other end side constituting a fulcrum and the first end side constituting a point of force.
The heat dissipating element 150 does not have the narrow portion T and the wide portion W. As a result, the rear end side of the substrate 110 is deformed by the stress generated when the fastening element 172 and fixed. However, since the leading end side of the substrate 110 is secured by means of the hooked attachment, at least deformation of the leading end side of the substrate 110 can be suppressed. Accordingly, the lamp 100 according to the present embodiment can also suppress the deformation of the substrate 110, with respect to the case where the front end side and the rear end side are fixed by means of the attachment mechanism 170. furthermore, the other effects can be obtained in the same way as in the first embodiment.
(Third embodiment)
A lamp 100 according to a third embodiment has the same configuration as the lamp 100 according to the first embodiment except that a jaw portion is provided in an optical element 130. The configuration of the lamp 100 of the Third embodiment which differs from that of the first embodiment is described below in detail and the configuration common to both embodiments is simply described or not described.
[0066]
Fig. 6 is a sectional view schematically showing lamp 100 according to the third embodiment. On the other hand, Figure 6 shows a state in which no fastener 172 is attached. The lamp 100 (100C) according to the present embodiment comprises a substrate 110 (HOC), an optical element 130 (130C), a heat dissipating element 150 (150C), a fastening mechanism 170 (170C) and an element The optical element 130, the substrate 110 and the heat dissipating element 150 are arranged (stacked) in this order. The heat transfer element 190 is disposed between the substrate 110 and the heat dissipating element 150. The substrate 110, the fixing mechanism 170 and the heat transfer element 190 have the same structure as in the first one. embodiment.
The optical element 130 has a flat plate-shaped base portion 131 in contact with the substrate 110, a reflective portion 132 curved downwardly relative to the base portion 131 and extending forwardly. of the vehicle and a portion of jaw 134.
[0068]
The base portion 131 has an opening 131a for a light source. Reflective portion 132 has a reflective surface 132a. The light source 111 is disposed within the light source aperture 131a and its light emitting surface is substantially rotated toward the reflecting surface 132a. The base portion 131 is provided with a boss portion 133. The boss portion 133 is disposed in an end side of the optical member 130, in the present embodiment, in its rear end side. The boss portion 133 has a fixing hole 133a into which the fastening element 172 is screwed.
[0069]
The jaw portion 134 is a portion that connects the optical element 130 and the heat sink element 150 to each other while being attached to one end of the heat sink element 150. Jaw 134 is disposed in the other end side of the optical element 130, in the present embodiment, in its front end side. The light source 111 is disposed between the jaw portion 134 and the boss portion 133 in the longitudinal direction of the lamp 100. The jaw portion 134 is formed, for example, by causing the front end of the base 131.
[0070]
The jaw portion 134 has a vertical portion 134a extending substantially parallel to the stacking direction A and a parallel portion 134b extending parallel to the first portion 151 of the heat dissipating member 150 from the upper end. from the vertical portion 134a. Accordingly, the jaw portion 134 has a substantially L-shaped section. The vertical portion 134a extends toward the side of the heat dissipating member 150 from the front end surface of the base portion 131 and the parallel portion 154b extends to the side of the second portion 152 from the upper end surface of the vertical portion 134a. In addition, the front end (portion including the front ends of the base portion 131 and the jaw portion 134) of the optical member 130 has a substantially U-shaped section.
The front end of the first part 151 is hooked by means of the jaw portion 134, so that the optical element 130 and the heat dissipating element 150 are hooked and fixed. When the optical element 130 and the heat dissipating element 150 are hooked and fixed, the sandwiched substrate 110 sandwiched between them is also fixed. In the state in which the optical element 130 and the heat sink element 150 are hung and fixed, the end surface of the first portion 151 facing the front side of the lamp is in contact with the vertical portion 134a and the major surface of the first portion 151 opposite the substrate 110 is in contact with the parallel portion 134b. On the other hand, in the present embodiment, the front end surface of the substrate 110 is also in contact with the vertical portion 134a.
The heat dissipating element 150 comprises the first portion 151, the second portion 152 and the connecting portion 153. In addition, the heat dissipating element 150 comprises the narrow portion T and the wide portion W. The heat dissipating element 150 has the same structure as in the first embodiment except that it has no jaw portion 154.
[0073]
In the present embodiment also, similarly to the first embodiment, end sides of the optical element 130 and the heat sink element 150 are secured by means of the attachment mechanism 170 and their other End sides are fixed by means of the hanging attachment. The hooked attachment prevents the optical element 130 and the heat dissipating element 150 from being moved in a direction in which the other end sides are separated from each other, the heat transfer element 197 located between the first end side and the other end side constituting a fulcrum and the other end side constituting a point of force.
[0074]
Accordingly, in the present embodiment also, similarly to the first embodiment, the deformation of the substrate 110 can be suppressed. That is, according to the first embodiment and the present embodiment, it will be understood that one of the two elements of the optical element 130 and the heat dissipation element 150 includes the jaw portion 134, 154 by which its other member is hooked, and thus, the deformation of the substrate 110 can be suppressed. In addition, the other effects can be obtained in the same way as in the first embodiment.
(Fourth embodiment)
A lamp 100 according to a fourth embodiment has the same configuration as the lamp 100 according to the first embodiment, except that the structures of the hooked attachment are different from each other. The configuration of the lamp 100 of the fourth embodiment which differs from that of the first embodiment is hereinafter described in detail and the configuration common to both embodiments is simply described or not described.
[0076]
Fig. 7 is a sectional view schematically showing lamp 100 according to the fourth embodiment. On the other hand, Figure 7 shows a state in which no fastener 172 is attached. The lamp 100 (100D) according to the present embodiment comprises a substrate 110 (110D), an optical element 130 (130D), a heat dissipating element 150 (150D), a fastening mechanism 170 (170D) and an element The optical element 130, the substrate 110 and the heat dissipating element 150 are arranged (stacked) in this order. The heat transfer element 190 is disposed between the substrate 110 and the heat dissipating element 150. The substrate 110, the fixing mechanism 170 and the heat transfer element 190 have the same structure as in the first one. embodiment.
The optical element 130 comprises a base portion in the form of a flat plate 131 in contact with the substrate 110, a reflecting portion 132 curved downwardly relative to the base portion 131 and extending towards the front of the vehicle, and a vertical portion 135.
[0078]
The base portion 131 has an opening 131a for a light source. Reflective portion 132 has a reflective surface 132a. The light source 111 is disposed within the light source opening 131a and its light emitting surface is substantially facing the reflecting surface 132a. The base portion 131 is provided with a boss portion 133. The boss portion 133 is disposed in an end side of the optical member 130, in the present embodiment, in its rear end side. The boss portion 133 has a fixing hole 133a into which the fastening element 172 is screwed.
[0079]
The vertical portion 135 is provided in the front end of the base portion 131 and extends substantially parallel to the stacking direction A. Specifically, the vertical portion 135 extends to the side of the heat dissipation 150 from the front end of the base portion 131. The vertical portion 135 is formed for example by bending the front end of the base portion 131. The vertical portion 135 has on a side facing surface. front of the lamp, a convex portion 135a projecting towards the front side of the lamp.
The heat dissipating element 150 includes a first portion 151, a second portion 152, a connecting portion 153 and a locking portion 155. In addition, the heat dissipating member 150 has a narrow portion T and a wide portion W. The heat dissipating member 150 has the same structure as in the first embodiment except that it includes the blocking portion 155.
[0081]
The blocking portion 155 is disposed in the front end side of the heat sink element 150. The light source 111 is disposed between the blocking portion 155 and the second portion 152 in the longitudinal direction of the lamp 100 The jaw portion 134 is formed, for example, by causing the front end of the base portion 131 to fold. The locking portion 155 extends substantially parallel to the stacking direction A, in other words, in the direction intersecting the direction of extension of the first portion 151 or the substrate 110. Specifically, the locking portion 155 extends toward the side of the optical member 130 from the front end of the first portion 151 In addition, the locking portion 155 has an opening 155a penetrating in the longitudinal direction of the lamp. The locking portion 155 is formed, for example, in such a way that a hole is made in the position of forming the opening 155a in the front end of the first portion 151, and the front end is bent.
The front end of the optical element 130 is inserted through the aperture 155a so that the optical element 130 is hooked and attached to the heat sink element 150. In the present embodiment, the convex portion 135a is inserted through the aperture 155a so that the optical element 130 and the heat sink element 150 are hung and fixed to each other. When the optical element 130 and the heat dissipating element 150 are hooked and fixed to each other, the substrate 110 interposed sandwiched between them is also fixed. In the state in which the optical element 130 and the heat dissipating element 150 are hooked and fixed, the surface of the locking portion 155 facing the rear side of the lamp and the surface of the vertical portion 135 rotated towards the front side of the lamp are in contact with each other. The front end surface of the substrate 110 is in contact with the surface of the vertical portion 135 facing the rear side of the lamp.
On the other hand, in the present embodiment, similarly to the first embodiment, end sides of the optical element 130 and the heat sink element 150 are fixed by means of the Fastening mechanism 170 and their other end sides are fixed by means of the hooked attachment. Thanks to the hooked attachment, the optical element 130 and the heat dissipating element 150 are prevented from being moved in a direction in which the other end sides are separated from each other, the element heat transfer device 190 located between the first end side and the other end side constituting a fulcrum and the first end side constituting a point of force.
[0084]
Accordingly, in the present embodiment also, similarly to the first embodiment, the deformation of the substrate 110 can be suppressed. In addition, the other effects can be obtained in the same way as in the first embodiment. On the other hand, in the present embodiment, the heat sink element 150 has the blocking portion 155 and an end of the optical element 130 is inserted through the opening 155a. However, the optical element 130 may include the locking portion 155 and an end of the heat dissipating member 150 may be inserted through the opening 155a. That is, one of two elements of the heat dissipating element 150 and the optical element 130 may include the locking portion 155 having the opening 155a and one end of the other element being hooked and fixed by being inserted through the opening 155a, so as to eliminate the deformation of the substrate 110.
[0085]
Further, in the present embodiment, the vertical portion 135 is located on the rear side of the lamp of the locking portion 155.
However, the present invention is not particularly limited to this configuration. For example, the vertical portion 135 may be located on the front side of the lamp of the locking portion 155 and the convex portion 135a may protrude toward the rear side of the lamp. In this case, the convex portion 135a is inserted through the opening 155a of the locking portion 155 from the front side of the lamp. On the other hand, in the case where the locking portion 155 is provided in the optical element 130, the longitudinal positions of the locking portion 155 and the vertical portion 135 can be replaced by one another.
[Fifth Embodiment]
A lamp 100 according to a fifth embodiment has the same configuration as the lamp 100 according to the first embodiment, except that the structure of the attachment mechanism 170 is different from that of the other. The configuration of the lamp 100 of the fifth embodiment which differs from that of the first embodiment is here described in detail and the configuration common to both embodiments is simply described or not described.
[0087]
Fig. 8 is a sectional view schematically showing lamp 100 according to the fifth embodiment. The lamp 100 (100E) according to the present embodiment comprises a substrate 110 (110E), an optical element 130 (130E), a heat dissipating element 150 (150E), a fastening mechanism 170 (170E) and an element The optical element 130, the substrate 110 and the heat dissipating element 150 are arranged (stacked) in this order. The heat transfer element 190 is disposed between the substrate 110 and the heat dissipating element 150. The heat transfer element 190 has the same structure as in the first embodiment.
[0088]
The substrate 110 has a light source mounting surface 112. A light source 111 is mounted on the light source mounting surface 112.
The optical element 130 has a flat plate-shaped base portion 131 in contact with the substrate 110 and a reflective portion 132 curved downwardly relative to the base portion 131 and extending forwardly. of the vehicle. The base portion 131 has an opening 131a for a light source. Reflective portion 132 has a reflective surface 132a. The light source 111 is disposed in the light source aperture 131a and its light emitting surface is substantially opposite to the reflecting surface 132a. A tab engaging aperture 131b is provided in the base portion 131. The aperture 131b is disposed in an end side of the optical element 130, in the present embodiment, in its rear end side. .
The heat dissipating element 150 has a first portion 151, a jaw portion 154 and a lug engagement hook 156. The first portion 151 has a flat plate shape and is in contact with the element. heat transfer device 190 in a thermally conductive manner. The jaw portion 154 is provided at the front end of the first portion 151. The jaw portion 154 has the same structure as in the first embodiment.
[0091]
The lug engaging hook 156 has a lug portion 156a extending toward the side of the optical element 130 from the rear end surface of the first portion 151 and a protruding portion 156b protruding toward the rear side. of the lamp from a surface of the tab portion 156a facing the rear side of the lamp. The heat dissipating member 150 is configured such that the lug engaging hook 156 is inserted through the opening 131b in the state in which the jaw portion 154 is hooked to the front end of the lug. In this manner, the projecting portion 156b is hooked to an edge of the opening 131b, so that the optical element 130 and the heat dissipating element 150 are engaged by a tab on their side. 'rear end. Accordingly, in the present embodiment, the attachment mechanism 170 includes the lug engagement hook 156.
On the other hand, in the present embodiment, similarly to the first embodiment, end sides of the optical element 130 and the heat sink element 150 are fixed by means of the Fastening mechanism 170 and their other end sides are fixed by means of a hooked attachment. Thanks to the hooked attachment, the optical element 130 and the heat dissipating element 150 are prevented from being moved in a direction in which the other end sides are spaced from each other, the element heat transfer device 190 located between the first end side and the other end side constituting a fulcrum and the first end side constituting a point of force.
[0093]
Accordingly, also in the present embodiment, similarly to the first embodiment, the deformation of the substrate 110 can be suppressed. In addition, the other effects can be obtained in the same way as in the first embodiment. In addition, in the present embodiment, the attachment mechanism 170 includes the lug engagement hook 156. Accordingly, also in the rear end side of the optical element 130 and the dissipation element 150, the distance between the substrate 110 and the heat dissipating element 150 approaching each other by means of the attachment can be reduced more reliably, compared with the case where the optical element 130 and the heat dissipating member 150 is attached by means of the fastener 172. As a result, the deformation of the substrate 110 can be further suppressed. In addition, the number of parts and the assembly hourly labor can be further reduced.
On the other hand, in the present embodiment, the heat sink element 150 includes the lug engagement hook 156 and the optical element 130 includes the aperture 131b. However, optical element 130 may include tab engaging hook 156 and heat dissipating member 150 may include aperture 131b. In addition, an opening may be provided in the rear end side of the substrate 110 and the lug engaging hook 156 may be inserted through the opening.
[Sixth Embodiment]
A lamp 100 according to a sixth embodiment has the same configuration as the lamp 100 according to the first embodiment except that the structure of the jaw portion 154 and the attachment mechanism 170 is different from that of the 'other. The configuration of the lamp 100 of the sixth embodiment which differs from that of the first embodiment is hereinafter described in detail and the configuration common to both embodiments is simply described or not described.
[0096]
Fig. 9 is a sectional view schematically showing lamp 100 according to the sixth embodiment. On the other hand, FIG. 9 represents the state which precedes the fixing of the optical element 130, of the substrate 110 and of the heat dissipating element 150, by means of a fastener 174. The lamp 100 (100F ) according to the present embodiment comprises the substrate 110 (110F), the optical element 130 (130F), the heat dissipating element 150 (150F), a fixing mechanism 170 (170F) and a transfer element 190. The optical element 130, the substrate 110 and the heat dissipating element 150 are arranged (stacked) in this order. The heat transfer element 190 is disposed between the substrate 110 and the heat dissipating element 150. The heat transfer element 190 has the same structure as in the first embodiment.
[0097]
The substrate 110 has a light source mounting surface 112. A light source 111 is mounted on the light source mounting surface 112. In addition, an opening 114 is provided in the forward end side of the substrate 110 .
The optical element 130 has a base portion in the form of a flat plate 131 in contact with the substrate 110 and a reflective portion 132 curved downwardly relative to the base portion 131 and extending forwardly. of the vehicle. The base portion 131 has an opening 131a for a light source. Reflective portion 132 has a reflective surface 132a. The light source 111 is disposed in the light source aperture 131a and its light emitting surface is substantially opposite to the reflecting surface 132a.
[0099]
An opening 131c is provided in the front end side of the base portion 131. The opening 131c is provided in a position superimposed with the opening 114 in the stacking direction A in the state in which are fixed. the optical element 130, the substrate 110 and the heat dissipating element 150. An attachment pin 136 is provided in the rear end side of the base portion 131. The rib 136 projects towards the opposite side to the substrate 110 in the stacking direction A.
The heat dissipating member 150 has a first portion 151 and a jaw portion 154. The first portion 151 has a flat plate shape and is in contact with the heat transfer member 190 in a manner that thermally conductive. An opening 157 is provided in the rear end side of the first portion 151. The clip 174 (to be described later) is engaged with the opening 157. The jaw portion 154 is provided at the front end of the first portion 151. The jaw portion 154 includes a second vertical portion 154c extending substantially parallel to the stacking direction with respect to the front end of a parallel portion 154b, in addition to a portion vertical 154a and the parallel portion 154b. The second vertical portion 154c extends toward the side of the substrate 110 from the rear end surface of the parallel portion 154b.
[0101]
When the jaw portion 154 is hooked to the front end of the optical element 130, the second vertical portion 154c is inserted through the opening 131c of the optical element 130 and the opening 114 of the substrate 110. Of this In this way, the optical element 130, the substrate 110 and the heat dissipating element 150 can be fixed more securely.
[0102]
The fastening mechanism 170 includes the fastener 174. The fastener 174 is for example an annular or cylindrical elastic element and has a discontinuous portion in the circumferential direction. The fastener 174 is moved such that one end 174a and the other end 174b of the discontinuous portion are separated from each other. In addition, one end 174a is inserted into the opening 157 and the other end 174b is hooked to the fastening engagement rib 156. The fastener 174 secures the optical element 130, the substrate 110 and the heat dissipation 150 by means of a reaction force against the force of the optical element 130, the substrate 110 and the heat dissipating element 150 pressing the first end 174a and the other end 174b in a direction away from each other.
On the other hand, in the present embodiment, similarly to the first embodiment, end sides of the optical element 130 and the heat sink element 150 are fixed by means of the Fastening mechanism 170 and their other end sides are fixed by means of a hooked attachment. Thanks to the hooked attachment, the optical element 130 and the heat dissipating element 150 are prevented from being moved in a direction in which the other end sides are separated from each other, the element heat transfer device 190 located between the first end side and the other end side constituting a fulcrum and the first end side constituting a point of force. Accordingly, in the present embodiment also, similarly to the first embodiment, the deformation of the substrate 110 can be suppressed. In addition, the other effects can be obtained in the same way as in the first embodiment.
[0104] (Seventh embodiment)
A lamp 100 according to a seventh embodiment has the same configuration as the lamp 100 according to the first embodiment, except that a boss portion 133 of an optical element 130 protrudes towards the side of the substrate. 110. The configuration of the lamp 100 of the seventh embodiment which differs from that of the first embodiment is hereinafter described in detail and the configuration common to both embodiments is simply described or not described.
[0105]
Fig. 10 is a sectional view schematically showing lamp 100 according to the seventh embodiment. On the other hand, Figure 10 shows a state in which no fastener 172 is attached. The lamp 100 (100G) according to the present embodiment comprises the substrate 110 (110G), the optical element 130 (130G), a heat dissipating element 150 (150G), a fixing mechanism 170 (170G) and a heat transfer element 190. The optical element 130, the substrate 110 and the heat dissipating element 150 are arranged (stacked) in this order. The heat transfer element 190 is disposed between the substrate 110 and the heat dissipating element 150. The heat transfer element 190 has the same structure as in the first embodiment.
[0106]
The substrate 110 has a light source mounting surface 112. A light source 111 is mounted on the light source mounting surface 112. In addition, the substrate 110 has an opening 115 in a region overlapping with the boss 133 in the stacking direction A.
The optical element 130 has a flat plate-shaped base portion 131 in contact with the substrate 110 and a reflective portion 132 curved downwardly relative to the base portion 131 and extending forwardly. of the vehicle. The base portion 131 has an opening 131a for a light source. Reflective portion 132 has a reflective surface 132a. The light source 111 is disposed in the light source aperture 131a and its light emitting surface is substantially opposite to the reflecting surface 132a.
[0108]
Further, the base portion 131 includes the boss portion 133. In the present embodiment, the boss portion 133 projects toward the side of the substrate 110. In addition, the boss portion 133 is disposed, for example, on the the front side of the lamp of a connecting portion between the base portion 131 and the reflective portion 132. Since the boss portion 133 projects toward the side of the substrate 110, even with such an arrangement, it is possible to avoid that the light path of the light source towards the front of the lamp is obstructed by the boss portion 133. Accordingly, when the boss portion 133 projects towards the side of the substrate 110, the degree of freedom of the installation of the boss portion 133 can be increased and further, the degree of design freedom of the lamp 100 can be increased. The boss portion 133 has a fixing hole 133a for the fastening member 172.
The heat dissipating element 150 comprises a first portion 151, a second portion 152, a connecting portion 153 and a jaw portion 154. The first portion 151 has a flat plate shape and is in contact with the heat transfer element 190 in a thermally conductive manner. In addition, the first portion 151 has an opening 115d in an overlapping region with the boss portion 133 in the stacking direction A.
[0110]
The second portion 152 is disposed in an overlapped position with the opening 151d in the stacking direction A. In addition, the second portion 152 is separated from the optical member 130 relative to the first portion 151. The second portion 152 has an insertion hole 152a and a fixing seat surface 152b. The second part 152 extends for example parallel to the first part 151. [YES]
The connecting portion 153 connects the first portion 151 and the second portion 152. An end side of the connecting portion 153 is connected to the first portion 151. In addition, the connecting portion 153 extends vertically upwardly. relative to the first portion 151 or extends in a direction away from the substrate 110 or the optical element 130. The other end side of the connecting portion is connected to the second portion 152.
[0112]
The jaw portion 154 has the same structure as in the first embodiment. Further, similarly to the first embodiment, the heat dissipating element 150 has a narrow portion T and a wide portion W. As a result, the heat sink element 150 has a portion where two side surfaces are close to each other or are separated from one another in a stepwise fashion or in a continuous manner, similarly to the first embodiment. The heat dissipating member 150 may be manufactured as follows. A cut along the shape of the second portion 152 and the connecting portion 153 is first provided in a predetermined position, for example, of an aluminum plate. The portion inside the blank is then cut and raised to form the second portion 152 and the connecting portion 153. The front end of the aluminum plate is then folded to form the jaw portion 154.
[0113]
The substrate 110 is aligned with the optical element 130 so that the opening 115 covers the boss portion 133. The substrate 110 is stacked on the base portion 131. In this way, the boss portion 133 is inserted through the opening 115. The heat dissipating member 150 is configured such that the jaw portion 154 is hooked to the front end of the optical member 130 and the boss portion 133 is then inserted through the opening 151d. In this manner, the fixing hole 133a of the boss portion 133 and the insertion hole 152a of the second portion 152 are overlapped in the stacking direction A. The fastening member 172 is then inserted through the insertion hole 152a and fixed to the fixing hole 133a. A head portion of the fastener member 172 is in contact with the fastening seat surface 152b. In this way, the substrate 110, the optical element 130 and the heat dissipating element 150 can be fixed to each other.
On the other hand, in the present embodiment, similarly to the first embodiment, end sides of the optical element 130 and the heat sink element 150 are fixed by means of the Fastening mechanism 170 and their other end sides are fixed by means of a hooked attachment. The hooked attachment prevents the optical element 130 and the heat sink element 150 from being moved in a direction in which the other end sides are separated from each other, the heat transfer element 190 located between the first end side and the other end side constituting a fulcrum and the first end side constituting a point of force. Accordingly, in the present embodiment also, similarly to the first embodiment, the deformation of the substrate 110 can be suppressed. In addition, the other effects can be obtained in the same way as in the first embodiment.
[0115]
In addition, in the present embodiment, the boss portion 133 projects toward the side of the heat dissipating member 150. Accordingly, it is possible to prevent the boss portion 133 from overlapping with the optical path of light from the light source. As a result, the degree of freedom of design of the lamp 100 can be increased and the luminous intensity of the lamp 100 can be increased.
[Eighth Embodiment]
A lamp 100 according to an eighth embodiment has substantially the same configuration as the lamp 100 according to the first embodiment except that a substrate 110 and a heat dissipating element 150 are hooked and fixed and a portion blocking element 155 is used as a structure for the hanging attachment. The configuration of the lamp of the eighth embodiment that differs from that of the first embodiment is described in detail below and the configuration common to both embodiments is simply described or not described.
[0117]
Fig. 11A is a sectional view schematically showing the lamp 100 according to the eighth embodiment and Fig. 11B is a plan view schematically showing a heat sink element 150 included in the lamp 100 according to the eighth embodiment. On the other hand, Fig. 11A is a sectional view of the lamp 100 through line B-B shown in Fig. 11B. In addition, Fig. 11A shows a state in which none of the fastener member 172 and a second fastener member 175 are attached.
[0118]
The lamp 100 (100H) according to the present embodiment comprises the substrate 110 (110H), an optical element 130 (130H), the heat dissipating element 150 (150H), a fixing mechanism 170 (170H) and a heat transfer element 190. The optical element 130, the substrate 110 and the heat dissipating element 150 are arranged in this order. The heat transfer element 190 is disposed between the substrate 110 and the heat dissipating element 150. The heat transfer element 190 has the same structure as in the first embodiment.
[0119]
The substrate 110 has a light source mounting surface 112. A light source 111 is mounted on the light source mounting surface 112. The substrate 110 has, in a predetermined position, an aperture 116 in which is fitted a convex positioning portion 137 (to be described later). In addition, the substrate 110 has, on the rear end side, an insertion hole 117 through which the fastening element 172 is inserted. In addition, the substrate 110 has, at the end side rear, an insertion hole 118 through which is inserted the second attachment member 175. The insertion hole 118 is located on the rear end side of the insertion hole 117.
The optical element 130 has a flat plate-shaped base portion 131 in contact with the substrate 110 and a reflective portion 132 curved downwardly relative to the base portion 131 and extending forwardly. of the vehicle. The base portion 131 has an opening 131a for a light source. Reflective portion 132 has a reflective surface 132a. The light source 111 is disposed in the light source aperture 131a and its light emitting surface is substantially opposite to the reflecting surface 132a.
[0121]
In addition, the base portion 131 has a boss portion 133 in a position overlapping with the insertion hole 118 in the stacking direction A. The boss portion 133 has a fixing hole 133a into which the second attachment member 175. In addition, the base portion 131 includes the convex positioning portion 137 in an overlapping position with the opening 116 of the substrate 110 in the stacking direction A. The convex positioning portion 137 makes protruding toward the side of the substrate 110. In addition, the base portion 131 has a concave portion 138 on a surface in contact with the substrate 110. The leading portion of the fastening member 172 is received in the concave portion 138 .
The heat dissipating element 150 has a first portion 151, a second portion 152, a connecting portion 153 and a locking portion 155. The first portion 151 has a flat plate shape and is in contact with the heat transfer element 190 in a thermally conductive manner. The first portion 151 has an opening 151a in a region overlapping with the insertion hole 117 of the substrate 110 in the stacking direction A. In addition, the first portion 151 has an insertion hole 151e in a lap region. with the boss portion 133 in the stacking direction A.
[0123]
The second portion 152 is disposed in an overlapped position with the opening 151a in the stacking direction A. The second portion 152 has a fixing hole 152c for the fastening member 172. The second portion 152 is formed of performing for example a deburring process on an aluminum plate. As a result, the second portion 152 includes, around the fixing hole 152c, a portion standing on the opposite side of the substrate 110.
[0124]
The connecting portion 153 connects the first portion 151 and the second portion 152. The second portion 152 is connected to the first portion 151 through the connecting portion 153. Accordingly, the first portion 151 and the second portion 152 are separated from each other in the region excluding the portion to which the connecting portion 153. is connected. The locking portion 155 has the same structure as in the fourth embodiment. In addition, the heat sink element 150 has a narrow portion T and a wide portion W similarly to the first embodiment.
[0125]
The fastening mechanism 170 includes the fastener 172 and the second fastener 175. The fastener 172 and the second fastener 175 are, for example, screws.
The front end of the substrate 110 is inserted through the opening 155a of the blocking portion 155, so that the substrate 110 is hooked and attached to the heat sink element 150. In the state in wherein the forward ends of the substrate 110 and the heat dissipating member 150 are hooked and secured, the fastener 172 is inserted through the insertion hole 117 of the substrate 110 and secured to the fixing hole 152c of the the second portion 152. A head portion of the fastener 172 is in contact with the surface of the substrate 110 on the opposite side of the heat dissipating member 150. In this manner, the rear end side substrate 110 and heat dissipating element 150 is fixed. In the state in which the substrate 110 and the heat dissipating element 150 are fixed, the insertion hole 118 of the substrate 110 and the insertion hole 151e of the heat dissipating element 150 are overlapped between them in the stacking direction A.
[0127]
A stacked body of the substrate 110 and the heat dissipating element 150 is placed on the base portion 131 of the optical element 130. The convex positioning portion 137 of the optical element 130 is then inserted into the opening 116 of the substrate 110 and the substrate 110, the optical element 130 and the heat dissipating element 150 are thus positioned. The head portion of the fastener 172 is received in the concave portion 138. Due to this positioning, the boss portion 133 and the insertion holes 118, 151a overlap in the stacking direction A. In this state, the second attachment member 175 is inserted through the insertion hole 151e and the insertion hole 118 and attached to the insertion hole 133a. The head portion of the second attachment member 175 is in contact with the surface of the first portion 151 on the opposite side of the substrate 110. In this manner, the substrate 110, the optical element 130, and the dissipation element 150 heat can be fixed to each other.
[0128]
In the present embodiment, end sides of the two elements of the heat sink element 150 and the substrate 110 are attached to each other of the attachment mechanism 170. In addition, their other end sides are hung and fixed so as to prevent the two elements from being displaced in a direction away from each other, the heat transfer element 190 located between the first end side and the other side end forming a fulcrum and the first end side constituting a point of force. In this way, similarly to the first embodiment, the deformation of the substrate 110 can be suppressed. In addition, the other effects can be obtained in the same way as in the first embodiment. On the other hand, in the present embodiment, the heat sink element 150 has the blocking portion 155 and an end portion of the substrate 110 is inserted through the opening 155a. However, the substrate 110 may include the blocking portion 155 and an end portion of the heat dissipating member 150 may be inserted through the opening 155a.
[0129] (Ninth embodiment)
A lamp 100 according to a ninth embodiment has the same configuration as the lamp 100 according to the eighth embodiment except that a heat sink element 150 has a jaw portion 154 to replace the Blocking 155. The configuration of the lamp 100 of the ninth embodiment which differs from that of the eighth embodiment is hereinafter described in detail and the configuration common to both embodiments is simply described or not described.
[0130]
Fig. 12 is a sectional view schematically showing lamp 100 according to the ninth embodiment. On the other hand, Figure 12 shows a state in which a fastener 172 and a second fastener 175 are not attached. The lamp 100 (1001) according to the present embodiment comprises a substrate 110 (1101), an optical element 130 (1301), the heat dissipating element 150 (1501) a fastening mechanism 170 (1701) and an element The optical element 130, the substrate 110 and the heat dissipating element 150 are arranged in this order. The heat transfer element 190 is disposed between the substrate 110 and the heat dissipating element 150. The substrate 110, the optical element 130 and the heat transfer element 190 have the same structure as in the eighth embodiment.
The heat dissipating element 150 comprises a first portion 151, a second portion 152, a connecting portion 153 and the jaw portion 154. The first portion 151, the second portion 152 and the connecting portion 153 have the same structure as in the eighth embodiment. The jaw portion 154 has the same structure as in the first embodiment. In the present embodiment, the forward end of the substrate 110 is hooked by means of the jaw portion 154 and thus the substrate 110 and the heat dissipating member 150 are hung and fixed. In the state in which the substrate 110 and the heat sink 150 are hung and fixed, an end surface of the substrate 110 facing the front side of the lamp is in contact with a vertical portion 154a and the surface main of the substrate 110 on the side opposite the heat dissipating element 150 is in contact with a parallel portion 154b.
[0132]
In the present embodiment also, similarly to the eighth embodiment, end sides of the substrate 110 and the heat dissipating member 150 are attached by means of the attachment mechanism 170 and their other sides of the end are fixed by means of the hooked attachment. The hooked attachment prevents the substrate 110 and the heat dissipating member 150 from being moved in a direction in which the other end sides are separated from each other, the heat transfer element 190 located between the first end side and the other end side constituting a fulcrum and the first end side constituting a point of force. Accordingly, in the present embodiment also, similarly to the eighth embodiment, the deformation of the substrate 110 can be suppressed. In addition, the other effects can be obtained in the same manner as in the eighth embodiment.
[0133] (Tenth embodiment)
Fig. 13A is a perspective view schematically showing a lamp according to a tenth embodiment. Figs. 13B, 13C and 13E are schematic views showing an example of a light distribution pattern formed by the lamp according to the tenth embodiment, and Fig. 13D is a schematic view showing an example of a light distribution pattern formed by a lamp according to a comparative example. Figs. 13B to 13E show a light distribution pattern which is formed on a virtual vertical screen disposed at a position 25 m in front of the lamp.
[0134]
A lamp 200 according to the present embodiment is mounted for example on a vehicle headlight device. The vehicle headlight device includes a pair of headlight units disposed on the left and right sides of the front of the vehicle. Since the units of the pair of headlight units have substantially the same configuration except that they have a bilaterally symmetrical structure, a structure of the lamp 200 mounted on a unit of the pair of headlight units will to be described here.
[0135]
The lamp 200 is disposed in the lamp chamber 13 which is defined by the lamp body 11 and the outer cover (see Fig. 1. The lamp 200 comprises a high beam chamber H1, a first low beam chamber L1 and a second low beam chamber L2. Each chamber has a substrate 110 on which is mounted a light source and a reflector as an optical element 230. In addition, similarly to the first to the ninth mode of embodiment described above, the lamp may include the heat dissipating element, the fixing mechanism and the heat transfer element or the like, and the lamp may have the same hooked fastening structure as in the first until the ninth embodiment described above.
[0136]
The high beam chamber H1 and the first low beam chamber L1 and the second low beam chamber L2 are formed separately. The first low beam chamber L1 and the second low beam chamber L2 are formed in one piece. The high beam chamber H1 is supported on the lamp body 11 via a traffic light aiming console 202. The first low beam chamber L1 and the second low beam chamber L2 are supported. on the lamp body 11 via a low beam aiming console 204. Accordingly, each of the main beam chamber H1 and the first low beam chamber L1 and the second chamber of passing beam L2 can be configured so that the angle of the optical axis is set independently [0137]
The traffic light chamber H1 may form a traffic light distribution pattern Hi shown in FIG. 13B. The first low beam chamber L1 and the second low beam chamber L2 may form a crosslamp light distribution pattern Lo shown in Fig. 13C. By way of example, the first passing beam chamber L1 forms the part of the crosslamp light distribution pattern Lo which comprises a cutting line CL having a predetermined shape (for example, a so-called oblique cutout shape or a cut-out shape, etc.). In addition, the second low beam chamber L2 forms the part of the crosslamp light distribution pattern Lo which does not comprise the cut line CL, for example a diffusion region which is located below the distribution pattern of passing beam light Lo and is spread in the horizontal direction. The light distribution pattern formed by the first cross-fire chamber L1 and the light distribution pattern formed by the second cross-fire chamber L2 overlap with one another to form the fire light distribution pattern. crossing Lo.
[0138]
The traffic light distribution pattern Hi comprises a portion of a light-P1 pattern having a higher light intensity than the other regions. The crosslamp light distribution pattern Lo has a light condensing pattern portion P2 having a higher light intensity than the other regions. The light condensation distribution patterns P1, P2 radiate towards the peripheries of a point H-V which is the intersection of a vertical line V and a horizontal line H, so as to form a so-called hot zone. The light condensing pattern part P2 is formed mainly by the first low beam chamber L1. Since the shape of the high beam light distribution pattern Hi and the low beam light distribution pattern is well known, their detailed description is omitted.
[0139]
The lamp is generally designed so that the two parts of the light condensing pattern PI, P2 radiate toward the peripheries of the H-V point. There is however a possibility that the forming position of the light condensing pattern portions P1, P2 is deflected due to reflector deformation or other manufacturing requirements, etc. On the other hand, when the traffic light chamber H1 and the first passing light chamber L1 are formed in one piece, the optical axis of the traffic light chamber H1 and the optical axis of the first Ll dipped beam chamber can not be adjusted independently. As a result, when the positional deviation of the light condensing pattern portions P1, P2 occurs, at least one of the light condensing pattern portion P1 and the light condensing pattern portion P2 can be away from the peripheries of point HV, as shown in Figure 13D. In Fig. 13D, the light condensing pattern portion P1 is spaced from a position where the light condensing pattern portion P1 should be originally formed.
[0140]
On the contrary, in the lamp 200 according to the present embodiment, the traffic light chamber H1 and the low beam chamber L1 are formed separately and thus their optical axes can be set independently. Accordingly, even when the positional deviation of the light-condensing pattern portions P1, P2 occurs, both the light-condensing pattern portion P1 and the light-condensing pattern portion P2 may be located in the peripheries of point HV, as shown in FIG. 13E. In this way, the illumination intensity of the hot zone can be increased more reliably and thus, the remote visibility of a driver can be improved.
On the other hand, the optical axis of at least one of the traffic light chamber H1 and the first passing beam chamber L1 can be adjusted. That is, the relative position between the optical axes of the two chambers can be changed. Accordingly, the optical axes of both the traffic light chamber H1 and the first low beam chamber L1 can be adjusted or the optical axis of only one of the traffic light chamber H1 and the first passing beam chamber L1 can be set. In addition, a configuration capable of independently adjusting the optical axes of the high beam chamber H1 and adjusting the optical axis of the first low beam chamber L1 is not limited to the configuration described herein. -above. The adjustment of the optical axes can for example be carried out independently, so that all the chambers are mounted on a common sighting console and the high beam chamber H1 or the first low beam chamber L1 is mounted on a aiming console via any position-moving mechanism.
[0142]
In addition, the number of high beam and low beam chambers is not particularly limited. The number of high beam chambers may be greater than or equal to two. The number of low beam chambers may be greater than or equal to three. When a plurality of high beam chambers H1 and a plurality of low beam chambers L1 are provided, at least one traffic light chamber H1 and at least one low beam chamber L1 may be formed separately. In addition, the first low beam chamber L1 and the second low beam chamber L2 can also be formed separately.
[0143]
The present invention is not intended to be limited to each of the above embodiments. Each embodiment may be combined or modifications as various design modifications may be applied to it, based on the knowledge of those skilled in the art. New embodiments obtained by such combinations or modifications are also included within the scope of the present invention. These new embodiments have the respective effects of the combined or modified embodiments.
[0144]
In each of the above embodiments, the front end side of each member is hooked and secured and its rear end side is secured by means of the attachment mechanism 170. However, the front end side of each The element can be fixed by means of the attachment mechanism 170 and its rear end side can be hung and fixed. On the other hand, from the point of view of avoiding annoyance of the path of light towards the front of the lamp 100, it is desirable that the front end side of each element be hooked and fixed.
[0145]
In each of the above embodiments, the lamp 100 is mounted on the vehicle headlight device 10. However, the present invention is not particularly limited to this configuration. The lamp 100 can be widely used as a lamp other than a vehicle lamp. For example, the lamp 100 can be widely used as general lighting such as indoor and outdoor lighting lamps, a lamp in trains, aircraft, ships and construction machinery, etc., and various lighting devices for industrial or commercial applications. Further, in each of the above embodiments, the LED has been described as an example of a light source 111. However, the light source 111 is not limited to the LED. The light source may be for example a semiconductor laser or a light bulb or the like.

权利要求:
Claims (5)
[1" id="c-fr-0001]
A lamp (100) comprising: a substrate (110) having a light source mounting surface (112); a heat dissipating member (150) configured to dissipate heat from a light source (111) mounted on the light source mounting surface (112); an optical element (130) configured to deflect the light emitted from the light source (111) mounted on the light source mounting surface (112); and a heat transfer member (190) having at least one of a flexibility or resiliency characteristic and configured to transfer heat from the light source (111) mounted on the light source mounting surface (112) ) from the substrate (110) to the heat dissipating element (150), wherein the optical element (130), the substrate (110) and the heat dissipating element (150) are stacked in this order, wherein the heat transfer element (190) is disposed in a position between the substrate (110) and the heat dissipating element (150) and covers at least the light source (111) mounted on the surface light source mounting arrangement (112), viewed from the stacking direction of the substrate (110) and the heat dissipating element (150), wherein an element of the heat dissipating element (150) and an element of the optical element (130) or an element of the communication element heat sink (150) and a substrate member (110), have first end sides secured to each other by a fastening mechanism (170), and have other end sides hooked and fixed so as to prevent the two elements from moving in a direction away from each other, the heat transfer element (190) being disposed between one of the first end sides and one of the other sides of the end forming a fulcrum and one of the first end faces constituting a point of application of force.
[2" id="c-fr-0002]
The lamp (100) of claim 1, wherein one of the two members has a jaw portion (154) on its other end side and the other of the two members being hooked to the jaw portion (154).
[3" id="c-fr-0003]
The lamp (100) according to claim 1, wherein one of the two elements has a locking portion (155) extending substantially parallel to the stacking direction and having an opening, and an end on the other side of the housing. end of the other of the two elements being inserted through the opening of the first of the two elements, so that the other of the two elements is thus hooked and fixed to the first of the two elements.
[4" id="c-fr-0004]
A lamp (100) according to any one of claims 1 to 3, wherein the fastening mechanism (170) comprises an attachment member (172), the heat dissipating member (150) comprises a first portion (151) in contact with the heat transfer member (190) in a thermally conductive manner, a second portion (152) having an insertion hole (152a) for the attachment member (172) and a connecting portion (153) for connecting the first portion (151) and the second portion (152) to each other, and the first portion (151) and the second portion (152) being separated from each other. other in a region excluding the connecting portion (153).
[5" id="c-fr-0005]
5. Lamp (100) according to claim 4, wherein the heat dissipating element (150) comprises a narrow portion (T) and a wide portion (W) in a region extending from one end of the connecting portion. (153) in contact with the first portion (151) to the insertion hole (152a) of the second portion (152), the width of the narrow portion (T) being smaller than the width of the wide portion (152); W).

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同族专利:

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公开号 | 公开日

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DE102016213778A1|2017-02-02|

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CN106402808B|2019-08-23|

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JP2017027879A|2017-02-02|

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FR3039632B1|2019-05-03|

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US10222033B2|2019-03-05|

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JP6584189B2|2019-10-02|

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US20170030547A1|2017-02-02|

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CN106402808A|2017-02-15|

引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

CN201133990Y|2007-06-04|2008-10-15|亿光电子工业股份有限公司|Luminous diode backlight module group|

---

JP5442317B2|2009-05-14|2014-03-12|株式会社小糸製作所|Vehicle lighting|

---

US20110050124A1|2009-08-28|2011-03-03|Joel Brad Bailey|Replaceable Illumination Module|

---

JP2011243502A|2010-05-20|2011-12-01|Ichikoh Ind Ltd|Vehicle lighting device|

---

JP5767853B2|2011-05-12|2015-08-19|株式会社小糸製作所|Vehicle lighting|

---

EP2807421B1|2012-01-25|2016-04-27|Koninklijke Philips N.V.|Led module and luminaire comprising said module|

---

EP2685151A3|2012-07-09|2017-11-15|Panasonic Intellectual Property Management Co., Ltd.|Illumination device|

---

JP2014182896A|2013-03-18|2014-09-29|Panasonic Corp|Illumination device|

---

JP6211349B2|2013-08-27|2017-10-11|株式会社小糸製作所|Vehicle lighting|

---

JP6507037B2|2015-06-03|2019-04-24|株式会社小糸製作所|Vehicle lamp|DE102017104841A1|2017-03-08|2018-09-13|HELLA GmbH & Co. KGaA|Lighting device for vehicles and assembly methods|

---

JP2018166090A|2017-03-28|2018-10-25|株式会社小糸製作所|Vehicular lighting tool|

---

DE102017122560A1|2017-09-28|2019-03-28|Automotive Lighting Reutlingen Gmbh|LED headlamp module|

---

FR3074564B1|2017-12-05|2019-11-08|Automotive Lighting Rear Lamps France|LUMINOUS MODULE COMPRISING A PROTECTIVE ELEMENT FOR PREVENTING ELECTROSTATIC DISCHARGE BETWEEN OUTSIDE AND INTERIOR OF THE LIGHT MODULE|

---

JPWO2020085044A1|2018-10-22|2021-09-16|株式会社小糸製作所|Vehicle lighting|

---

EP3914856A1|2019-01-23|2021-12-01|Hella Gmbh & Co. Kgaa|Illumination device for a vehicle with positioning means|

---

JP2020123454A|2019-01-29|2020-08-13|スタンレー電気株式会社|Vehicular lamp unit and vehicular lamp|

---

EP3865768A1|2020-02-12|2021-08-18|Lumileds LLC|Heat sink comprising double sided reference pin|

---

DE102020108891A1|2020-03-31|2021-09-30|HELLA GmbH & Co. KGaA|Light module, headlight and motor vehicle|

---

DE102020108894A1|2020-03-31|2021-09-30|HELLA GmbH & Co. KGaA|Light module, headlight, motor vehicle and method for producing the light module|

法律状态:
2017-05-29| PLFP| Fee payment|Year of fee payment: 2 |

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2018-06-08| PLFP| Fee payment|Year of fee payment: 3 |

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2018-09-07| PLSC| Search report ready|Effective date: 20180907 |

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2020-06-11| PLFP| Fee payment|Year of fee payment: 5 |

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2021-06-11| PLFP| Fee payment|Year of fee payment: 6 |

优先权:

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申请号 | 申请日 | 专利标题

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JP2015147547|2015-07-27|

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JP2015147547A|JP6584189B2|2015-07-27|2015-07-27|Lamp|

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