• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a vehicle lamp (1), light emitting diodes (18) emitting light are arranged on the inside of a transparent surface cover (3). A conductive reflector (24) which reflects the light emitted by the light-emitting diodes (18) to the surface cover (3) is provided between the light-emitting diodes (18) and the surface cover (3). The reflector (24) is arranged to be in proximity to the light emitting diodes (18). A ground connection terminal (26, 40, 44) is disposed on the reflector (24). The ground connection terminal (30, 31, 32, 33, 34) is adapted to be connected to the vehicle body.
    公开号:FR3017444A1
    申请号:FR1551141
    申请日:2015-02-12
    公开日:2015-08-14
    发明作者:Kiyoshi Sazuka
    申请人:Koito Manufacturing Co Ltd；
    IPC主号:
    专利说明:

    [0001] BACKGROUND 1. Technical Field Examples of embodiments of the invention relate to a vehicle lamp. 2. Associated Technique As described in JP 2013-161577 A, a vehicle lamp has recently been proposed in which light-emitting diodes are arranged on the inside of a transparent surface cover and a conductive reflector for reflecting the light emitted by the lamps. Light emitting diodes to the surface cover are disposed between the light emitting diodes and the surface cover, so as to be in a state where the conductive reflector is in the vicinity of the light emitting diodes. Since the reflector is arranged to be in the state where the reflector is in the vicinity of the light emitting diodes, the vehicle lamp can be compacted. SUMMARY However, it has been found that in the above vehicle lamp, the failure rate of the light emitting diodes tends to be higher than that of the vehicle lamps in which the reflector and the surface cover are remote from the light emitting diodes. The inventor has studied this problem and discovered that electrostatic breakdown caused by static electricity occurs in the destroying LEDs. Vehicles are washed when their bodies are stained. After washing, the surface caps of the vehicle lamps are wiped with a cloth. As vehicles move forward, pebbles, etc., can hit the surface caps of vehicle lamps producing mutual friction. In addition, at the vehicle distribution stage static electricity due to friction may appear on the surface covers of vehicle lamps. As a result, static electricity tends to appear frequently or periodically on the surface covers of vehicle lamps. 3 0 1 74 4 4 2 Given the above circumstances and the structure, etc., of the vehicle lamp described above, the inventor insists on a concept such that the static electricity appearing on the cover of The vehicle lamp surface can produce an inductive charge or discharge and cause a static electric charge of the reflector which is in the vicinity of the light-emitting diodes and the static electricity stored in the reflector can then act on the light-emitting diodes by the electroluminescent diodes. via a landfill. The inventor has realized the invention based on this notion. An exemplary embodiment of the invention has been realized in view of the above circumstances and prevents the light-emitting diodes from snapping due to static electricity in a vehicle lamp in which the light-emitting diodes are disposed on the face The interior of a transparent surface cover and a conductive reflector for reflecting the light emitted by the light-emitting diodes to the surface cover is disposed between the light-emitting diodes and the surface cover so as to be in a state where the reflector is located. near the light-emitting diodes. (1) According to an exemplary embodiment, a vehicle lamp has a transparent surface cover, light emitting diodes, a conductive reflector and a ground connection terminal. Light-emitting diodes emit light. The light-emitting diodes are disposed on the inner face of the transparent surface cover. The conductive reflector reflects the light emitted by the light-emitting diodes to the surface cover. The conductive reflector is provided between the light emitting diodes and the surface cover. The reflector is arranged to be in a state where the reflector is in proximity to the light emitting diodes. The ground connection terminal is disposed on the reflector. The ground connection terminal is connected to the vehicle body. Examples of preferred embodiments of the vehicle lamp according to (1) will be described later in (2) to (5). With the configuration described above, even if static electricity appears, which can also produce a static electric charge of the reflector through an inductive load, a discharge or the like, the static electricity is immediately guided to the vehicle body via the ground connection terminal. Accordingly, a phenomenon such as the static electricity stored in the reflector can be prevented from being discharged between the reflector and the light emitting diode which is in the vicinity of the reflector (i.e. static stored in the reflector to act on the light-emitting diode). As a result, the light emitting diode can be prevented from snapping due to static electricity. (2) The vehicle lamp according to (1) may further include a conductive housing. The conductive housing contains a lighting control circuit configured to perform lighting control for the light emitting diodes. The driver housing is connected to the vehicle body. The ground connection terminal is connected to the conductive housing. With this configuration, the static electricity to be stored in the reflector is immediately guided to the vehicle body by means of the conductive housing. Accordingly, it is possible to prevent a phenomenon such that the static electricity stored in the reflector is discharged between the reflector and the light emitting diode which is near the reflector. As a result, the light-emitting diode can be prevented from snapping due to static electricity. (3) The vehicle lamp according to (1) may further include a resin circuit board and a ground interconnection pattern. The light-emitting diodes and the reflector are mounted on the resin circuit board. The ground interconnect pattern is formed on the circuit board so as to be connected to the vehicle body. The ground connection terminal 30 of the reflector is connected to the ground interconnection pattern. With this configuration, the static electricity to be stored in the reflector is immediately guided to the vehicle body by means of the ground interconnect pattern on the circuit board. As a result, it is possible to prevent a phenomenon such that the static electricity stored in the reflector is discharged between the reflector and the light-emitting diode which is close to the reflector. As a result, the light-emitting diode can be prevented from snapping due to static electricity. In addition, since it is no longer necessary to use a ground wire that is connected to the ground connection terminal, the configuration is simplified and the number of components can be reduced. (4) The vehicle lamp according to (1) may further include a conductive base and a resin circuit board. The conductive base is connected to the vehicle body. The resin circuit board is disposed on the conductive base. The light-emitting diodes and the reflector are mounted on the circuit board. The ground connection terminal of the reflector is attached to the conductive base by screwing a metal screw into the ground connection terminal, the circuit board and the conductive base. With this configuration, the reflector and the circuit board can be attached to the conductive base using the metal screw. The static electricity to be stored in the reflector is immediately guided to the vehicle body via the conductive base by means of the metal screw. Accordingly, it is possible to prevent a phenomenon such that the static electricity stored in the reflector is discharged between the reflector and the light-emitting diode which is near the reflector. As a result, the light-emitting diode can be prevented from snapping due to static electricity. (5) In the vehicle lamp according to (1), the state where the reflector is in the vicinity of the light-emitting diodes may be a state where the reflector and the light-emitting diodes are spaced from each other by 1 mm or less. Even if the lamp to convey is configured in this way, the static electricity to be stored in the reflector is immediately guided to the vehicle body. As a result, it is possible to prevent a phenomenon such that the static electricity stored in the reflector is discharged between the reflector and the light-emitting diode which is close to the reflector. Accordingly, the light emitting diode can be prevented from snapping due to static electricity. The invention will be better understood and its advantages will be better understood on reading the following detailed description. The description refers to the drawings given below, which are given by way of example. Figure 1 is a vertical sectional view of a vehicle lamp according to a first exemplary embodiment; Fig. 2 is a perspective view showing a LED unit of the vehicle lamp according to the first exemplary embodiment; Fig. 3 is a vertical sectional view of the reflector of the vehicle lamp according to the first exemplary embodiment, approximately through the center of the reflector in the direction in which the reflector extends; Figure 4 is a vertical sectional view of the reflector, by a position close to an end portion (fixing portion) of the reflector in the direction in which the reflector extends; Fig. 5 is a perspective view showing an LED unit used in a vehicle lamp according to a second exemplary embodiment; Fig. 6 is a perspective view showing an LED unit used in a vehicle lamp according to a third exemplary embodiment; Fig. 7 is a perspective view showing an LED unit used in a vehicle lamp according to a fourth exemplary embodiment; Fig. 8 is a vertical sectional view of a vehicle lamp according to a fifth exemplary embodiment; Fig. 9 is a perspective view showing an LED unit used in the vehicle lamp according to the fifth exemplary embodiment; Fig. 10 is an exploded perspective view showing the LED unit of the vehicle lamp according to the fifth exemplary embodiment; FIG. 11 is a vertical sectional view of a reflector of the vehicle lamp according to the fifth exemplary embodiment, by a position near an end portion (fixing portion) of the reflector in the direction in which extends the reflector; and Fig. 12 is a perspective view showing an LED unit used in a vehicle lamp according to a sixth exemplary embodiment. DETAILED DESCRIPTION Embodiments of the invention will be described below with reference to the accompanying drawings.
    [0002] In FIG. 1, reference numeral 1 represents a vehicle lamp according to a first exemplary embodiment which is a beacon of a left or right beacon (hereinafter referred to as a "headlight"). The headlamp 1 is fixed to the vehicle body in the front left or front right position and illuminates the region located in front of the vehicle. As shown in FIG. 1, with regard to the appearance of the headlamp 1, the headlamp 1 comprises a lamp body 2 and a front cover 3. The lamp body 2 is provided with a front opening. The front cover 3 (example of the surface cover) closes the opening of the lamp body 2. As shown in FIG. 1, the lamp body 2 has a rear wall 2a and a circumferential wall 2b. The rear wall 2a rises vertically. The circumferential wall 2b projects forward (to the left in FIG. 1) from the circumferential portion of the rear wall 2a. The rear wall 2a extends horizontally (i.e., in a direction perpendicular to the surface of the sheet of Fig. 1) maintaining a constant height. The circumferential wall 2b defines a housing space 4 with the rear wall 2a. A front end portion of the circumferential wall 2b forms an opening 5 which is longer in the horizontal direction and which is continuous with the accommodating space 4. As shown in Fig. 1, the front cover 3 is fixed the front end portion of the circumferential wall 2b of the lamp body 2 is removable. With this configuration, the front cover 3 and the lamp body 2 constitute a lamp body assembly. On the other hand, the front cover 3 and the lamp body 2 form an airtight lamp chamber 6 therein. The front cover 3 is transparent. The light emitted into the lamp chamber 3 is outputted out through the front cover 3. In this exemplary embodiment, the front cover 3 (surface cover) is a resin lens. As shown in FIG. 1, an LED unit 7 is disposed in the lamp chamber 6. As shown in FIGS. 1 and 2, the LED unit 7 is provided with a metal heat sink 8 (for example, a product made of die-cast aluminum) which is an example of a conductive base. In this exemplary embodiment, the heat sink 8 includes a metal support plate portion 9 and heat radiating fin portions 10 which are formed integrally.
    [0003] The support plate portion 9 is supported by the rear wall 2a of the lamp body 2 via sighting screws 11a, etc. A flat surface of the support plate portion 9 is rotated in the forward and backward direction. The flat surface of the support plate portion 9 is spaced from the rear wall 2a of the front side. The heat radiating fin portions 10 are attached to the rear surface of the support plate portion 9. The heat radiating fin portions 10 are cooled by a heat dissipating fan 12 attached to the heat sink 8 Fig. 2 is drawn such that the upper portion 25 of the support plate portion 9 is cut so that the heat radiating fin portions 10 appear (Figs. 5 to 7 and 9 are also drawn from this way). As shown in FIGS. 1 and 2, the LED unit 7 is also equipped with a cylindrical lens holder 13 and a projection lens 14. The projection lens 14 is attached to the lens holder 13. rear end portion (first end portion) of the lens holder 13 is attached to the front surface of the support plate portion 9. A front end portion (other end portion) of the lens holder 13 'expands forward. Fig. 2 is drawn such that the right portion of the lens holder 13 is cut to represent a circuit board 17, etc. (which will be described later, Figures 5 to 7 and 9 are also drawn in this manner). The projection lens 14 is attached to the front end portion of the lens holder 13. With this configuration, the projection lens 14 is disposed on the optical axis L which extends in the front and rear direction of the vehicle. The front cover 3 is disposed in front of the projection lens 14. The distance between the projection lens 14 and the front cover 3 is in the range of about 3 cm to about 15 cm. In FIG. 1, the reference numeral 15 represents an extension reflector which is disposed around the projection lens 14 and the lens holder 13. As shown in FIGS. 1 and 2, the LED unit 7 is equipped of a light emitting module 16. The light emitting module 16 comprises a resin circuit board 17, a plurality of light-emitting diodes (hereinafter referred to as "LEDs") 18 and a power supply connector 19. The circuit board 17 is disposed in the lens holder 13 and is located on the front surface of the support plate portion 9. A circuit board surface 17a of the circuit board 17 is directed forward. The circuit board 17 is disposed closer to the top wall of the lens holder 13. A power supply circuit (not shown) is formed on the surface of the circuit board 17a. The LEDs 18 are attached to the lower portion of the circuit board surface 17a of the circuit board 17. To serve as a surface light source that emits light, the LEDs 18 are arranged in the width direction of the vehicle, the light emitting surfaces of the LEDs 17 being directed forward. In this exemplary embodiment, to emit white light, each LED 18 is configured such that a phosphor layer 18b is formed on an LED chip 18a (see FIG. 3). The power connector 19 is attached to the upper part of the surface of the circuit board 17a. A power source (not shown) is connected by means of a wire harness 20 to the power supply connector 19 via the LED control module (LDM) 21. The LEDs 18 are connected to the power connector. supply 19 through the power supply circuit (not shown) which is formed on the surface of the circuit board 17a. The LED control module 21 is disposed in the lower portion of the lamp body 2. The LED control module 21 is provided with a metal housing 22 (example of a conductive housing) and a lighting control circuit. 23 located in the metal housing 22. The power connector 19 and the power source (not shown) are connected to each other through the lighting control circuit 23 in the metal housing 22. The lighting control circuit 23 controls the various LEDs 18 to be turned on / off. As shown in FIGS. 1 to 4, the LED unit 7 is equipped with a conductive reflector 24. The conductive reflector 24 has a reflector portion 25 and a pair of fastening portions 26. The reflector portion 25 is extends to have a flat band shape. The attachment portions 26 are located on both sides of the reflector portion 25 in the direction in which the reflector portion 25 extends. The attachment portions 26 form an integral part of the reflector portion 25. In this exemplary fashion In one embodiment, the reflector portion 25 and the pair of fastening portions 26 are comprised of an integrated die-cast aluminum product. One of the side surfaces of the reflector portion 25 is directed forward. The reflector portion 25 is disposed on the surface of the circuit board 17a below the LEDs 18. The reflector portion 25 projects forward from the surface of the circuit board 17a, the upper and lower surfaces of the reflector portion 25 being directed upwardly and downwardly. The upper surface of the reflector portion 25 is provided with a groove 27. In a region below the LEDs 18, the width of the groove 27 is slightly larger than the thickness of the LEDs 18. The groove 27 comprises a step surface formed on the upper surface of the reflector portion 25 and on the surface of the circuit board 17a. The inner surface of the groove 27 is close to the LEDs 18. In this exemplary embodiment, the distance D1 between the lower surface 27a of the groove 27 and the LEDs 18 and the distance D2 between the outer vertical surface 27b of the groove 27 and the LEDs are each set to be less than or equal to 1 mm (see Figure 3).
    [0004] On the other hand, the vertical position of the groove opening 27 of the reflector portion 25 (i.e., the upper end of the outer vertical surface 27b) is approximately the same height as the lower surfaces of the LEDs 18. From the upper surface of the reflector portion 25, a portion on the front side of the upper end of the outer vertical surface 27b of the groove 27 substantially constitutes a reflection surface 28. The surface of the Reflection 28 is inclined to descend from the upper end of the outer vertical surface 27b to the front side. The reflection surface 28 of the reflector portion 25 reflects the light that is emitted by the LEDs 18 to the projection lens 14 and the front cover 3. The projection lens 14 is disposed in front of the reflector 24. The distance between the reflector 24 and the projection lens 14 is in a range of about 3 cm to about 15 cm.
    [0005] As shown in FIGS. 2 and 4, the pair of fastener portions 26 extend vertically with the flat surfaces of the fastener portions in contact with the surface of the circuit board 17a. Each fixing portion 26 is provided with fixing holes 26a in the upper and lower positions. The circuit board 17 is provided with fixing holes 17b so that the fixing holes 17b correspond to the respective fixing holes 26a. On the other hand, the support plate portion 9 of the heat sink 8 is provided with screw holes 9a so that the screw holes 9a correspond to the respective fixing holes 26a. Accordingly, when the reflector 24 is positioned in its regular attachment position on the surface of the circuit board 17a, the fixing holes 26a of the fixing portions 26, the fixing holes 17b of the circuit board 17 and the holes screws 9a of the support plate portion 9 overlap each other. With this positional relation, tapping screws 29 (example of metal screws) are respectively inserted into the fixing holes 26a of the fastening portions 26 and the fixing holes 17b of the circuit board 17, and are screwed into the holes of FIG. 9a of the support plate portion 9. The reflector 24 is thus fixed to the support plate portion 9. At this time, the circuit board 17 is also fixed to the support plate portion 9.
    [0006] As shown in FIGS. 1 and 2, an end portion of a ground wire bundle 30 is connected to the attachment portion 26 by means (of the head) of the tapping screws 29. The other end portion of the ground wire harness 30 and connected to the metal housing 22. The metal housing 22 is connected to the vehicle body by another ground wire bundle 31.
    [0007] In the lighthouse 1 thus configured, the front cover 3 can be charged by friction by static electricity when, for example, it is wiped with a cloth after washing the vehicle. This static electricity can produce a static charge of the projection lens 14 and the reflector 24 (via the projection lens 14) by inductive charging and discharging. In particular, in this exemplary embodiment, since the front cover 3 is a resin lens, the front cover 3 tends to charge with a large amount of static electricity, which can cause a charge of static electricity. reflector 24 unless an appropriate measure is taken. However, in this exemplary embodiment, even if static electricity appears which can also produce a charge of the reflector 24, the static electricity is immediately directed to the metal housing 22 provided in the lamp chamber 6 by the fixing portion 26 and the ground wire bundle 30, then guided to the vehicle body by the other ground wire bundle 31. Accordingly, although the potential of the circuit board 17 decreases due to its connection at the connector 19 (ground) since as described above, static electricity to be stored in the reflector 24 is immediately guided to the vehicle body, it can prevent a phenomenon such as static electricity stored in the reflector 24 discharges between the reflector 24 and the LEDs 18 which are close to the reflector 24. It is thus possible to prevent the LEDs 18 from being electrically damaged. (electrostatic breakdown). In addition, since the static electricity to be stored in the reflector 24 is immediately guided to the vehicle body to prevent a discharge of static electricity, it can also prevent the appearance of noise expected otherwise (overvoltage d 'static electricity). Figures 5 to 7 show second, third and fourth exemplary embodiments, respectively. Figures 8 to 11 show a fifth exemplary embodiment. Fig. 12 shows a sixth exemplary embodiment. In each of these exemplary embodiments, the constituent elements that are the same as those of the above exemplary embodiment example (s) receive the same reference symbols and will not be redundantly described. In the second exemplary embodiment shown in Fig. 5, the ground wire harness 30 is connected to a ground lead 33 which is connected to the vehicle body and the LED control module (LDM) 21. Accordingly, the static electricity to be stored in the reflector 24 is immediately guided to the vehicle body by the attachment portion 26, the ground wire bundle 30 and the ground wire 33. The discharge of electricity can be prevented static between the reflector 24 and the LEDs 18 which are close to the reflector 24. In Figure 5, the symbol "+ B" represents a power source. In the third exemplary embodiment shown in Fig. 6, a ground interconnect pattern 32 is formed on the circuit board surface 17a of the circuit board 17 so as to be connected to the vehicle body. The attachment portion 26 (interior surface) of the reflector 24 is in contact with the ground interconnection pattern 32. Accordingly, the static electricity to be stored in the reflector 24 is immediately guided to the vehicle body using the ground interconnection pattern 32 formed on the circuit board 17. It is thus possible to prevent the static electricity from discharging between the reflector 24 and the LEDs 18 which are in the vicinity of the reflector 24. This exemplary embodiment is of a very simple configuration, because no cable such as the earth cable harness 30 is used to guide the static electricity to the vehicle body. In the fourth exemplary embodiment shown in FIG. 7, the reflector 24 (attachment portion 26) is electrically connected to the heat sink 8 using the tapping metal screws 29 (see FIG. 4). The heat sink 8 is connected to the metal housing 22 of the LED control module 21 by a wire harness 34. The metal housing 22 is connected to the vehicle body by the ground wire harness 31 (see FIG. Figure 2, not shown in Figure 7). As a result, the static electricity to be stored in the reflector 24 is immediately guided to the heat sink 8 by means of the tapping metal screws 29, then to the vehicle body via the ground wire bundle 34 and the As a result, in this case, it is possible to prevent a phenomenon such that the static electricity stored in the reflector 24 is discharged between the reflector 24 and the LEDs 18 which are in the vicinity of the reflector 24. The fifth example of embodiment shown in Figures 8 to 11 is an example of modification of the first exemplary embodiment. In the fifth exemplary embodiment, one end of the ground wire harness 30 is connected to a connection terminal 40 which is held between one of the attachment portions 26 of the reflector 24 and the circuit board 17. The terminal connection 40 is shaped as a flat plate and is a conductive element such as a metal. The connection terminal 40 has a main portion 40a in the form of a flat strip and connection portions 40b. The main portion 40a is held between the attachment portion 26 of the reflector 24 and the circuit board 17. The connection portions 40b protrude from the main portion 40a outwardly and in one direction in the direction of the width of the main portion 40a (see Figure 10). Two fixing holes 40c are formed in the main portion 40a of the connection terminal 40. The two fixing holes 40c are spaced from each other in the direction in which the main portion 40a extends. The two fixing holes 40c correspond to the two respective fixing holes 26a of the fixing portion 26 of the reflector 24. When the main part 40a is held between the fixing portion 26 of the reflector 24 and the circuit board 17, the holes fastening 40c of the main portion 40a overlap respectively with the fixing holes 26a of the first fixing portion 26, the corresponding fixing holes 17b of the circuit board 17 and the corresponding screw holes 9a of the support plate portion 9 With this positional relation, the tapping screws 29 are respectively inserted into the fixing holes 26a, 40c and 17b and screwed into the screw holes 9a.
    [0008] In a state where the main portion 40a is held between the first attachment portion 26 of the reflector 24 and the circuit board 17, the connection portions 40b project from the attachment portion 26, etc. The first end portion of the ground wire harness 30 is connected to one of the protruding connection portions 40b. With this structure, the reflector 24 is electrically connected to the vehicle body via the attachment portion 26, the connection terminal 40, the ground wire harness 30, the metal housing 22 and the wire harness. mass 31. Since the static electricity to be stored in the reflector 24 is immediately guided to the vehicle body, it can prevent a phenomenon such that the static electricity stored in the reflector 24 is discharged between the reflector 24 and the LEDs 18 which are in proximity to the reflector 24. As a result, the LEDs 18 can be prevented from being electrically damaged (electrostatic breakdown), and the occurrence of noise (static electricity surge) due to the discharge of the electrodes can be prevented. static electricity. In Fig. 9, reference numerals 20a and 20b respectively show a cathode lead wire and anode lead wire, which are specific examples of the wire harness used in the first exemplary embodiment (for connect the power source to the power connector 19 via the LED Control Module (LDM) 21). The sixth exemplary embodiment shown in Fig. 12 is also an exemplary modification of the first exemplary embodiment. In the sixth exemplary embodiment, an end portion of the ground wire harness 30 is connected to a mask 42 which is attached to the front surfaces of the attachment portions 26 of the reflector 24. The mask 42 is formed from a conductive element in the form of a flat strip and is made of a metal or the like. The mask 42 has a mask body 43 and attachment portions 44. The mask body 43 extends by folding it several times. The attachment portions 44 are connected to the two end portions of the mask body 43 in the direction in which the mask body 43 extends. Each attachment portion 44 is provided with attachment holes 44a such as the fixation holes. 44a correspond to the respective attachment holes 26a of the associated attachment portion 26 of the reflector 24. The attachment portions 44 of the mask 42 are aligned with the respective attachment portions 26 of the reflector 24 while a flat surface of the mask 42 is directed forward and backward. The fixing holes 44a of the mask 42 thus overlap respectively with the fixing holes 26a of the fixing parts 26, the fixing holes 17b of the circuit board 17 and the fixing holes 9a of the support plate portion 9. this positional relationship, tapping screws 29 are inserted into the fixing holes 44a, 26a and 17b and respectively screwed into the screw holes 9a. At this time, the head of a tapping screw 29 presses an end portion of the ground wire harness 30 against the attachment portion 44 of the mask 42 (an electrical connection is made between them). The reflector 24 is thus electrically connected to the vehicle body by means of the attachment portion 26, the attachment portion 44 of the mask 42, the ground wire harness 30, the metal housing 22 and the cable harness 31. Since the static electricity to be stored in the reflector 24 is immediately guided to the vehicle body, it can prevent a phenomenon such that the static electricity stored in the reflector 24 discharges between the reflector 24 and the LEDs. 18 in the vicinity of the reflector 24. Accordingly, in this exemplary embodiment, the LEDs 18 can be prevented from being electrically damaged (electrostatic breakdown), and the occurrence of the noise (surge voltage) can be prevented. static electricity) due to static electricity discharge. Although the invention has been described based on several exemplary embodiments, the invention also includes the following embodiments: (1) The invention is applicable to various types of vehicle lamps in the as the LEDs 18 and the reflector 24 are used. The invention can be applied for example to a vehicle lamp in which the front cover (surface cover) 3 serves as a lens and the projection lens 14 which is disposed on the inner face of the front cover 3 is omitted. (2) In place of the configuration where the heat sink 8 and the LED control module housing 21 are made of one or more metals, the surface of the heat sink and the surface of the control module housing LEDs may have a conductive coating (eg, a metal coating).
    权利要求:
    Claims (5)
    [0001]
    REVENDICATIONS1. A vehicle lamp (1) comprising: a transparent surface cover (3); light-emitting diodes (18) which emit light, the light-emitting diodes (18) being disposed on an inner side of the transparent surface cover (3); a conductive reflector (24) which reflects the light emitted by the light-emitting diodes (18) to the surface cover (3), the conductive reflector (24) being disposed between the light-emitting diodes (18) and the surface cover (3) ), the reflector (24) being arranged to be in a state where the reflector (24) is in proximity to the light emitting diodes (18); and a ground connection terminal (26, 40, 44) which is disposed on the reflector (24), the ground connection terminal (30, 31, 32, 33, 34) being adapted to be connected to the body of a vehicle.
    [0002]
    The vehicle lamp (1) according to claim 1, further comprising: a conductive housing (22) containing a lighting control circuit (23) configured to provide illumination control for the light emitting diodes (18) the conductive housing (22) being adapted to be connected to the vehicle body; and the ground connection terminal (26, 40, 44) is connected to the conductive housing (22).
    [0003]
    The vehicle lamp (1) according to claim 1, further comprising: a resin circuit board (17) on which the light-emitting diodes (18) and the reflector (24) are mounted; and a ground interconnect pattern (32) formed on the circuit board (17) to be adapted to be connected to the vehicle body, wherein the ground connection terminal (26) of the reflector (24) is connected to the ground interconnection pattern (32).
    [0004]
    The vehicle lamp (1) according to claim 1, further comprising: a conductive base (8) adapted to be connected to the vehicle body; and a resin circuit board (17) disposed on the conductive base (8), wherein the light-emitting diodes (18) and the reflector (24) are mounted on the circuit board (17), and the connecting terminal of mass (26, 40, 44) of the reflector (24) is fixed to the conductive base (8) by screwing a metal screw into the ground connection terminal (26, 40, 44), the circuit board (17) and the conductive base (8).
    [0005]
    The vehicle lamp according to claim 1, wherein the state where the reflector (24) is in the vicinity of the light emitting diodes (18) is a state where the reflector (24) and the light emitting diodes (18) are spaced apart. each other 1 mm or less.
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    同族专利:
    公开号 | 公开日
    DE102015202519A1|2015-08-13|
    US9718393B2|2017-08-01|
    CN104832854B|2019-12-03|
    JP6441652B2|2018-12-19|
    JP2015167123A|2015-09-24|
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    US20150224915A1|2015-08-13|
    CN104832854A|2015-08-12|
    KR20150095206A|2015-08-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    CN203186208U|2013-04-18|2013-09-11|常州中隆车辆配件有限公司|Automobile lamp|FR3032516B1|2015-02-06|2021-04-16|Valeo Vision|LUMINOUS MODULE REFLECTOR DEVICE WITH ELECTROMAGNETIC SHIELDING|
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    FR3048153B1|2016-02-22|2019-11-29|Valeo Vision|LUMINOUS MODULE FOR A MOTOR VEHICLE WITH MASS RECOVERY|
    FR3052538B1|2016-06-09|2018-07-20|Valeo Vision|LUMINOUS DEVICE FOR A MOTOR VEHICLE INCORPORATING MEANS FOR PROTECTING ELECTROSTATIC DISCHARGES|
    JP6765241B2|2016-07-13|2020-10-07|株式会社小糸製作所|Lighting device for vehicles|
    KR20180111143A|2017-03-31|2018-10-11|몰렉스 엘엘씨|LED lamp using MID technology|
    KR102020835B1|2017-05-23|2019-09-11|인퓨즈 주식회사|Light device for vehicles|
    JP6866795B2|2017-07-26|2021-04-28|市光工業株式会社|Vehicle lighting|
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    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|
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    JP2020053114A|2018-09-21|2020-04-02|株式会社小糸製作所|Vehicular lighting fixture|
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    JP2020173896A|2019-04-08|2020-10-22|株式会社小糸製作所|Reflective resin member and vehicular lighting fixture|
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    法律状态:
    2015-12-29| PLFP| Fee payment|Year of fee payment: 2 |
    2017-01-09| PLFP| Fee payment|Year of fee payment: 3 |
    2017-12-27| PLFP| Fee payment|Year of fee payment: 4 |
    2018-10-26| PLSC| Publication of the preliminary search report|Effective date: 20181026 |
    2019-01-08| PLFP| Fee payment|Year of fee payment: 5 |
    2020-01-02| PLFP| Fee payment|Year of fee payment: 6 |
    2021-01-13| PLFP| Fee payment|Year of fee payment: 7 |
    2022-01-18| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2014023993|2014-02-12|
    JP2014023993|2014-02-12|
    JP2014237624A|JP6441652B2|2014-02-12|2014-11-25|Vehicle lighting|
    JP2014237624|2014-11-25|
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