• 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:
    The invention relates to an optical module (1) comprising a radiator (8) provided with one or more heat-dissipating surfaces (13), a fan (7) able to send air to the at least one dissipating surface of heat (13), and a light source (2, 3) supported by said radiator (8). The main characteristic of an optical module according to the invention is that the fan (7) is fixed to the radiator (8) by clipping.
    公开号:FR3031571A1
    申请号:FR1550174
    申请日:2015-01-09
    公开日:2016-07-15
    发明作者:Nicolas Ruckebusch
    申请人:Valeo Vision SA；
    IPC主号:
    专利说明:

    [0001] The invention relates to an optical module for a vehicle headlamp. Generally such an optical module operates with a light source having the disadvantage of emitting heat. It is therefore equipped with a radiator for absorbing this heat, so as to maintain the temperature of said module at a relatively low level. In this way, the operation of the optical module is not affected by too high a temperature. This type of module has already been patented. It is possible, for example, to quote patent application EP2138759 relating to an optical module whose particularity is to possess a light source based on a semiconductor light emitting device. This module includes a radiator able to blow air cooled to the light source. An optical module according to the invention implements a fan / radiator assembly, which is easy and quick to assemble and disassemble, is compact and has a reduced cost. The subject of the invention is an optical module comprising a radiator provided with one or more heat-dissipating surfaces, a fan capable of sending air onto the heat-dissipating surface (s), and a light source supported by said radiator. The main characteristic of an optical module according to the invention is that the fan is attached to the radiator by clipping. In this way, the attachment of the fan to the radiator is easy and fast because it does not require specific tools or complicated handling requiring precision and rigor. In addition, the fan can be detached at any time from the radiator as simple and fast as when mounted on said radiator. The fan is oriented relative to the radiator, so that the air pulsed by said fan passes between the heat dissipating surfaces of the radiator. It is advantageously assumed that the radiator heat dissipating surfaces are made of metal. The radiator can support the light source either directly or indirectly by means of a holding part. Each heat-dissipating surface may, for example, be represented by a fin or a pin. Advantageously, the radiator comprises a housing having one or more edges and at least two deformable clipping tabs protruding from the edge or at least two of said edges, the fan being placed on said radiator between said at least two clipping tabs. In this way, the fixing of the fan on the radiator comprises a first phase during which the bringing together of the fan towards the radiator will cause an elastic separation of the clipping lugs, then a second phase during which the clipping lugs are going to closing on said fan once it has reached its final fixing position on said radiator. The legs close on the fan in a natural way trying to find their position of relaxation. It is assumed that all the clipping lugs project from said edges in the same direction. For this embodiment, the fan is fixed by the top of the radiator. Preferably, the housing has two clipping lugs protruding from two opposite edges facing one another. This is a simple configuration ensuring a homogeneous and effective stowage of the fan on the radiator. Preferably, each clipping lug has three segments and two elbows, the distance separating said tabs being smaller than the dimensions of the fan so that the fixing of the fan on said radiator is effected by means of a spacing of said tabs. Advantageously, the two tabs are inclined relative to each other so as to promote the insertion of the fan. Thus, the two legs are oriented relative to each other so as to form a bottleneck narrowing progressively as one approaches the radiator, thus facilitating the pre-positioning of the fan 3031571 3 with respect to the radiator, and then guiding its translation to bring it closer to said radiator. Advantageously, each edge is surmounted by at least one positioning element of the fan protruding from the housing in the same direction as that of the clipping lugs. Preferably, each positioning element is constituted by a plane wall extending in the same plane each edge of the radiator housing. Advantageously, the radiator has several dissipating surfaces formed by parallel fins. Advantageously, the fins are all the same size and are strictly aligned. Each of the fins may advantageously be materialized by a metal sheet. Preferably, the fins are separated from each other. In this way, they constitute a discontinuous network, two successive fins being separated and independent of one another. According to another preferred embodiment of an optical module according to the invention, the fins are in continuity with each other to form a single piece. Preferably, two successive fins are connected to each other by a bend of 180 °. Thus arranged, the fins constitute a single piece that can easily be manipulated to, for example, be inserted into the housing of the radiator and then be fixed therein. Preferably, the fins are aluminum. The fins being in the form of sheets can thus be made of 99% pure aluminum, unlike existing radiators manufactured from an injected aluminum alloy, less efficient in cooling. Advantageously, the light source comprises at least one electroluminescent diode. A light-emitting diode is a powerful light source in terms of light intensity produced, while remaining of a small footprint.
    [0002] According to another preferred embodiment of an optical module according to the invention, the fan is fixed to the radiator by means of a sliding of said fan along said radiator and a locking by clipping. This is an alternative embodiment of a light module according to the invention, for which the fan is fixed laterally on the radiator. Advantageously, the sliding is effected by means of an interaction between two grooves and two rails, said two grooves belonging to one of the two elements constituted by the radiator and the fan, and said two rails belonging to the other element. In other words, if both rails belong to the fan, then the grooves belong to the radiator, and vice versa. The grooves are introduced into the rails and slide along them until the fan has reached its final fixing position. The subject of the invention is a radiator for producing an optical module according to the invention. The third object of the invention is a vehicle headlamp comprising at least one optical module according to the invention. Indeed, a light module according to the invention is particularly suitable for use in a vehicle headlight, and more particularly in a motor vehicle headlight. An optical module according to the invention has the advantage of being flexible in use and maintenance, because the fan can be attached to the radiator quickly and easily, and can be removed at any time easily . It also has the advantage of being efficient in terms of temperature regulation, insofar as the radiator is made of folded sheet metal, with pure aluminum having good thermal conduction. The following is a detailed description of two preferred embodiments of an optical module according to the invention, with reference to FIGS. 1 to 6. FIG. 1 is a perspective view of an optical module. according to the invention, the fan being detached from said module, - Figure 2 is a sectional view of the module of Figure 1, - Figure 3 is a perspective view of a radiator of an optical module according to the invention. FIG. 4 is a view from above of the radiator of FIG. 3; FIG. 5 is an exploded view of part of a first preferred embodiment of an optical module according to the invention; FIG. 6 is an exploded view of part of a second preferred embodiment of an optical module according to the invention. Referring to FIGS. 1 and 2, an optical module 1 according to the invention constitutes an elongated element. , and schematically comprises two light-emitting diodes 2, 3, two reflective surfaces 4, 5, an exit dioptre 6 and a cooling device having a fan 7 and a radiator 8. The two diodes 2, 3 are placed on a support piece 9 flat and thin, secured to the radiator 8. More precisely this support piece 9 comprises two flat surfaces 10, 11 and parallel, a diode 2, 3 being fixed on each of said surfaces 10, 11. Each reflective diopter 4, 5 is curved and is located opposite a diode 2, 3 so as to reflect the light beams from said diode 2, 3 to the output diopter 6. The cooling device is placed behind the diodes 2, 3 with respect to the diopter 6 output. In other words, the diodes 2, 3 are placed between the output dioptre 6 and the assembly formed by the fan 7 and the radiator 8. The cooling device, the diodes 2, 3 and the output diopter 6 are aligned in a longitudinal axis of the optical module 1. Referring to Figures 3 and 4, the radiator 8 comprises a housing 12 and an array of fins 13 of aluminum. The housing 12 is delimited by four side walls 14, 15, 16, 17 and a bottom 18, two successive walls forming between them an angle of 90 °. The walls 14, 15, 16, 17 and the bottom 18 are planar, said bottom 18 being perpendicular to each of said walls 14, 15, 16, 17.
    [0003] Referring to FIGS. 3 and 5, two parallel walls 14, 15 of said housing 12 are each extended by an elastically deformable clipping lug 19, each of said lugs 19, 20 having three segments 21, 22, 23 and two elbows. These two tabs 19, 20 emerge on the same side of the two walls 14, 15 on which they are implanted, said side being opposite to that at which the bottom 18 is located. In this way, each tab 19, 20 extends into a direction which is opposed to that where the bottom 18 is located. The first segment 21 extends in the same plane the wall 14, from which it emerges, the second segment 22 extends said first segment 21, and has a tendency to extend towards the center of the housing 13. The third segment 23 extends said second segment 22 by being slightly inclined relative to the first segment 21 and tends to extend outwardly of said housing 12, the two elbows being situated between said three segments 21, 22, 23. The third segments 23 of the two tabs 19, 20 facing one another, define between them a space which is gradually reduced in approaching the bottom 18 of the housing 12. Two positioning tabs 24, 25, 2 6, 27 frame each of the two clipping lugs 19, 20, each of said positioning tabs 24, 25, 26, 27 consisting of a flat wall of small thickness, extending in the same plane the side wall 14, 15 of the housing 12 from which it emerges, and protruding in the same direction as that of the clipping lug 19, 20. The other two parallel side walls 16, 17 of the housing 12 also have locating lugs 28, 29, 30 having different lengths. along the said walls 16, 17. The various positioning tabs 24, 25, 26, 27, 28, 29, 30 are intended to delimit a space of the radiator 8 intended to receive the fan 7. Referring to FIGS. , the fins 13 of the radiator 8 are all the same length and are arranged in said radiator 8 being parallel to each other. They are further aligned with each other, two successive fins 13 being connected to each other by means of a segment 31 bent at 180 °. In other words, each fin 13 is extended at its ends by bent segments 31 in opposite directions. The fins 13 being machined in 7 sheets, can be made with 99% pure aluminum and thus ensure a high performance heat conduction, in particular to cool the optical module 1. The fins 13 of the radiator 8 constitute a single piece , housed in the casing 12 of the radiator 8 while remaining totally included in said housing 12, without emerging therefrom. The housing 12 is provided with perforated fasteners 32, parallel to the bottom 18 of said housing 12, to allow attachment for example by screwing thereof on the flat support part 9 of the optical module 1. Referring to FIG. 5, according to a first preferred embodiment of an optical module 1 according to the invention the fin array 13 and the housing 12 constitute the same part made of folded aluminum sheet. The fan 7 is brought above the radiator 8, consisting of the housing 12 and the fins 13, said radiator 8 being fixed to the flat support part 9 of the optical module 1. The fan 7 is then moved in translation from top to bottom, as indicates the arrow 34, to be fixed on said radiator 8. The fan 7 then passes between the third segments 23 of the two lugs 19, 20 of clipping, causing a temporary spacing of said two legs 19, 20. The stroke of the fan 7 to the radiator 8 continues, until the upper part of said fan 7 has crossed the second segments 22 of said tabs 19, 20. The clipping lugs 19, 20 then close on the fan 7 while relaxing to find their rest position. Referring to Figure 6, according to a second preferred embodiment of an optical module 1 according to the invention, the fin array 13 and the housing 12 are two separate parts made of folded aluminum sheet. The part materializing the network of fins 13 is then introduced into the housing 12 to form the radiator 8. The fan 7 is then attached to the radiator 8 according to the same principle as that used for the first preferred embodiment described above. . According to a third preferred embodiment of an optical module 1 according to the invention, the fan 7 can be fixed, either by the top of the radiator 8 as is the case for the first two preferred embodiments described above. but laterally by means of a sliding on said radiator 8. This lateral sliding is implemented by means of an interaction between two parallel projecting grooves and two parallel rails, said grooves belonging to one of the two elements constituted by the fan 7 and the radiator 8, and said two rails belonging to the other element. The grooves are introduced into the rails, and the fan 7 slides laterally on the radiator 8 by creating an extra thickness corresponds approximately to the total thickness of said fan. At the end of the stroke, the fan 7 is locked on said radiator 8 by clipping.
    权利要求:
    Claims (15)
    [0001]
    REVENDICATIONS1. An optical module (1) comprising a radiator (8) provided with one or more heat-dissipating surfaces (13), a fan (7) adapted to supply air to said at least one heat dissipating surface (13), and a light source (2, 3) supported by said radiator (8), characterized in that the fan (7) is attached to the radiator (8) by clipping.
    [0002]
    2. Optical module according to claim 1, characterized in that the radiator (8) comprises a housing (12) having one or more edges (14, 15, 16, 17) and at least two clipping tabs (19, 20). deformable protruding edge or at least two (14, 15) of said edges, and in that the fan (7) is placed on said radiator (8) between said at least two clipping lugs (19, 20).
    [0003]
    3. Optical module according to claim 2, characterized in that the housing (12) has two clipping lugs (19, 20) protruding from two edges (14, 15) opposite facing one another.
    [0004]
    4. Optical module according to claim 3, characterized in that each clipping lug (19, 20) has three segments (21, 22, 23) and two elbows, and in that the distance separating said lugs (19, 20) is smaller than the dimensions of the fan (7) so that the attachment of the fan (7) to said radiator (8) is effected by means of a spacing of said tabs (19, 20).
    [0005]
    5. Optical module according to any one of claims 3 or 4, characterized in that the two tabs (19, 20) are inclined relative to each other so as to promote the insertion of the fan (7). .
    [0006]
    Optical module according to one of Claims 2 to 5, characterized in that each edge (14, 15, 16, 17) is surmounted by at least one positioning element (24, 25, 26, 27, 28, 29, 30) of the fan (7) projecting from the housing (12) in the same direction as that of the clipping lugs (19, 20). 3031571 10
    [0007]
    7. Optical module according to any one of claims 1 to 6, characterized in that the radiator (8) has a plurality of dissipating surfaces formed by fins (13) parallel.
    [0008]
    8. Optical module according to claim 7, characterized in that the fins (13) are separated from each other.
    [0009]
    9. Optical module according to claim 7, characterized in that the fins (13) are continuous with each other to form a single piece.
    [0010]
    10. Optical module according to any one of claims 7 to 9, characterized in that the fins (13) are made of aluminum.
    [0011]
    11.An optical module according to any one of claims 1 to 10, characterized in that the light source comprises at least one light emitting diode (2, 3).
    [0012]
    12. Optical module according to any one of claims 1 to 11, characterized in that the fan (7) is fixed to the radiator (8) by means of a sliding of said fan (7) along said radiator (8) then a locking by clipping.
    [0013]
    13. Optical module according to claim 12, characterized in that the sliding is effected by means of an interaction between two grooves and two rails, said two grooves belonging to one of the two elements constituted by the radiator (8). ) and the fan (7), and said two rails belonging to the other element (7, 8).
    [0014]
    14.Radiator (8) for producing an optical module (1) according to any one of claims 1 to 13.
    [0015]
    Vehicle projector comprising at least one optical module (1) according to any one of claims 1 to 13.
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    引用文献:
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    FR3031571B1|2015-01-09|2018-08-10|Valeo Vision|OPTICAL MODULE FOR VEHICLE PROJECTOR|
    FR3031572B1|2015-01-09|2018-08-10|Valeo Vision|OPTICAL MODULE FOR VEHICLE PROJECTOR|FR3031571B1|2015-01-09|2018-08-10|Valeo Vision|OPTICAL MODULE FOR VEHICLE PROJECTOR|
    FR3062612B1|2017-02-06|2020-10-02|Valeo Vision|OPTICAL MODULE FOR MOTOR VEHICLES AND LOCKING A COMPONENT OF THE MODULE IN POSITION BY AN ELASTICALLY DEFORMABLE ENCLOSURE ELEMENT|
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    EP3385605A1|2017-04-06|2018-10-10|Valeo Iluminacion|Cooling device|
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    CN108826218B|2018-05-14|2021-04-27|安徽卡澜特车灯科技有限公司|Double-light lens lamp holder|
    CN108644737B|2018-05-14|2020-03-13|安徽卡澜特车灯科技有限公司|Car light assembly heat radiation structure|
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    法律状态:
    2016-02-01| PLFP| Fee payment|Year of fee payment: 2 |
    2016-07-15| PLSC| Publication of the preliminary search report|Effective date: 20160715 |
    2017-01-31| PLFP| Fee payment|Year of fee payment: 3 |
    2018-01-31| PLFP| Fee payment|Year of fee payment: 4 |
    2020-01-31| PLFP| Fee payment|Year of fee payment: 6 |
    2021-01-28| PLFP| Fee payment|Year of fee payment: 7 |
    2022-01-31| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1550174|2015-01-09|
    FR1550174A|FR3031571B1|2015-01-09|2015-01-09|OPTICAL MODULE FOR VEHICLE PROJECTOR|FR1550174A| FR3031571B1|2015-01-09|2015-01-09|OPTICAL MODULE FOR VEHICLE PROJECTOR|
    EP16150244.8A| EP3043107B1|2015-01-09|2016-01-05|Optical module for motor vehicle headlight|
    CN201610012320.8A| CN105782935A|2015-01-09|2016-01-08|Optical Module For Motor Vehicle Headlight|
    US14/991,097| US10072810B2|2015-01-09|2016-01-08|Optical module for a vehicle headlamp|
    US16/052,160| US10859233B2|2015-01-09|2018-08-01|Optical module for a vehicle headlamp|
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