• 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) having one or more heat-dissipating surfaces (13), a fan (7) adapted to send air to the at least one heat-dissipating surface (13), and a light source (2, 3) supported by said radiator (8). The main characteristic of a module according to the invention is the radiator (8) is formed with folded sheet, the fan (7) being fixed to said radiator (8) by fastening means (19, 20) made in said folded sheet.
    公开号:FR3031572A1
    申请号:FR1550173
    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.
    [0002] 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 invention relates to an optical module comprising a radiator comprising one or more heat-dissipating surfaces, a fan capable of sending air to the heat-dissipating surface or surfaces, and a light source supported by said radiator. The main characteristic of an optical module according to the invention is that the radiator is formed with folded sheet, the fan being fixed to said radiator by fastening means made in said folded sheet. In this way, the fastening means are of small thickness, have a good mechanical strength and may have a certain ability to elastic deformation. All these structural and functional features are particularly suitable for fixing the fan on the radiator. In addition, such a fixing configuration is freed from the implementation of additional parts, often expensive and bulky, and specifically designed for fixing the fan on said radiator. This results in an economical gain and a gain of space often sought in a motor vehicle. A folded sheet has the advantage of being easily and quickly machined, to obtain fastening means of variable geometry and size, adapted to the characteristics of the fan and radiator 5 considered. Each heat-dissipating surface may, for example, be represented by a fin or a pin. Advantageously, the folded sheet forms a casing surrounding the OR said heat dissipating surfaces. Preferably, the folded sheet forms a fin, or several fins interconnected and separated by the folds or the curvatures of said sheet, the fins or fins forming the heat dissipating surface (s). Preferably, the fins and the housing form a single piece formed by said folded sheet Advantageously, the fan is attached to the radiator by clipping. In this way, the attachment of the fan to the radiator is quick and easy as it does not require special tools or complicated handling requiring precision and rigor. In addition, the fan can be removed at any time from the radiator as simply and quickly as when mounted on said radiator.
    [0003] Advantageously, the heat-dissipating surfaces and the housing form two distinct parts. Advantageously, the fixing means are made in the housing of the radiator. Preferably, the folded sheet forms a fin, or several fins 25 connected to one another and separated by the folds or the curvatures of said sheet, the fins forming the heat-dissipating surface or surfaces, the fixing means being made in the fins. of the radiator. Preferably, the fixing means comprise at least two resiliently deformable fastening tabs.
    [0004] Advantageously, the housing, the heat dissipating surfaces and the fixing means are made of aluminum. Preferably, the aluminum is 99% pure. Advantageously, the fan comprises complementary fixing means 5 adapted to cooperate with the radiator fixing means. Preferably, 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.
    [0005] Preferably, the fan is attached to the radiator by means of a sliding of said fan along said radiator and a lock made with the radiator fixing means. This is an alternative embodiment of a light module according to the invention, for which the fan is fixed laterally on the radiator.
    [0006] 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. Advantageously, the rails are folded portions of said folded sheet.
    [0007] The second object 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 headlamp, and more particularly in a motor vehicle headlamp.
    [0008] 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 simply and quickly, and can be removed at any time in any way. also easy. 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 a elongated element, and schematically comprises two light-emitting diodes 2, 3, two reflecting surfaces 4, 5, an output dioptre 6 and a cooling device having a fan 7 and a radiator 8. The two diodes 2, 3 are placed on a flat support part 9 and thin 25, secured to the radiator 8. More specifically, this support part 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 relative to the diopter 6 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.
    [0009] Referring to FIGS. 3 and 4, the radiator 8 comprises a housing 12 and an aluminum fin array 13. 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. Referring to FIGS. 3 and 5, two parallel walls 14, 15 of said case 12 are each extended by a clipping tab 19, 20 elastically deformable, each of said tabs 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. in a direction opposite 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 tends to extend to 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 located between said three segments 21, 22, 23. The third segments 23 of the two tabs 19 19, 20 facing each other, define between them a space which is gradually reduced approaching the bottom 18 of the housing 12. Two positioning tabs 24, 25, 26, 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 positioning tabs 28, 29, 30 having different lengths along 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.
    [0010] Referring to Figures 3 and 4, the fins 13 of the radiator 8 are all the same length and are disposed 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 10 by bent segments 31 in opposite directions. The fins 13 being machined into sheets, can be made with 99% pure aluminum thus enabling high performance thermal conduction, in particular to cool the optical module 1. The fins 13 of the radiator 8 constitute a single piece, housed in the housing 12 of the radiator 8 remaining completely 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 a single piece 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 indicated by the arrow 34, to be fixed on said radiator 8. The fan 7 then passes between the third segments 23 of the two tabs 19, 20 of clipping, causing a temporary spacing of said two tabs 19, 20. The race of the fan 7 to the radiator 8 continues, until the upper part of said fan 7 has passed the second segments 30 22 of said tabs 19, 20. The clipping lugs 19, 20 are then closed on the fan 7 while relaxing to find their rest position.
    [0011] 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 constitute 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 hereinabove. 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 10 of the radiator 8 as is the case for the first two preferred embodiments described hereinabove. before, but laterally by sliding on said radiator 8. This lateral sliding is implemented by means of an interaction between two parallel protruding grooves and two parallel rails, said grooves belonging to one of the two elements 15 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 20 by clipping.
    权利要求:
    Claims (3)
    [0001]
    REVENDICATIONS1. An optical module (1) comprising a radiator (8) having one or more heat dissipating surfaces (13), a fan (7) adapted to supply air to the at least one heat dissipating surface (13), and a source luminaire (2, 3) supported by said radiator (8), characterized in that the radiator (8) is formed with folded sheet, and in that the fan (7) is attached to said radiator (8) by means fastening means (19, 20) made in said folded sheet.
    [0002]
    2. Optical module according to claim 1, characterized in that the folded sheet forms a housing (12) surrounding the heat dissipating surface (s) (13).
    [0003]
    3. Optical module according to one of claims 1 to 2, characterized in that the folded sheet forms a fin, or several fins (13) interconnected and separated by the folds or curvatures of said sheet, or fins forming the heat dissipating surface (s). 5. 6. 7. 8. Optical module according to claims 2 and 3, characterized in that the fins (13) and the housing (12) form a single piece formed by said folded sheet. Optical module according to any one of claims 1 to 4, characterized in that the fan (7) is fixed to the radiator (8) by clipping. Optical module according to claim 2, characterized in that the heat-dissipating surfaces (13) and the housing (12) form two distinct parts. Optical module according to any one of claims 1 to 6, characterized in that the fixing means are formed in the housing (12) of the radiator (8). Optical module according to any one of claims 1 to 7, characterized in that the folded sheet forms a fin, or several fins (13) connected to one another and separated by the folds or curvatures 3031572 9 of said sheet, the or fins forming the heat dissipating surface or surfaces, and in that the fixing means are formed in the fins (13) of the radiator (8). 9. Optical module according to any one of claims 1 to 8, characterized in that the fixing means comprise at least two fastening tabs (19, 20) elastically deformable. 10. Optical module according to any one of claims 1 to 9, characterized in that the housing (12), the heat dissipating surfaces (13) and the fixing means (19, 20) are made of aluminum. 11. Optical module according to any one of claims 1 to 10, characterized in that the fan (7) comprises complementary fixing means adapted to cooperate with the fixing means (19, 20) of the radiator (8). Optical module according to one of Claims 1 to 11, characterized in that the light source comprises at least one light-emitting diode (2, 3). 13. Optical module according to any one of claims 1 to 12, 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). ) and a locking made with the fastening means of the radiator (8). 14. Optical module according to claim 13, 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). 15.An optical module according to claim 14, characterized in that the rails are folded portions of said folded sheet. 16. Radiator (8) for producing an optical module (1) according to any one of claims 1 to 15. 17.A vehicle projector comprising at least one optical module (1) in accordance with one of the following: any of claims 1 to 15.
    类似技术:
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    同族专利:
    公开号 | 公开日
    CN107208863A|2017-09-26|
    FR3031572B1|2018-08-10|
    US20170370551A1|2017-12-28|
    EP3243024A1|2017-11-15|
    US9958129B2|2018-05-01|
    WO2016110573A1|2016-07-14|
    EP3243024B1|2018-12-05|
    KR20170103796A|2017-09-13|
    JP6797806B2|2020-12-09|
    JP2018501627A|2018-01-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2009091562A2|2008-01-15|2009-07-23|Philip Premysler|Omnidirectional led light bulb|
    US20100103691A1|2008-10-24|2010-04-29|Koito Manufacturing Co., Ltd.|Automotive lamp whose light source is a semiconductor light emitting device|
    US20100103667A1|2008-10-29|2010-04-29|Thrailkill John E|Solid state lighting apparatus utilizing axial thermal dissipation|
    US20100315830A1|2009-06-10|2010-12-16|Man Zai Industrial Co., Ltd.|Heat dissipation device of vehicle lamp and interposing element thereof|FR3100598A1|2019-09-05|2021-03-12|Psa Automobiles Sa|Anti-vibration device for a motor vehicle headlight fan|CN101296601A|2007-04-25|2008-10-29|鸿富锦精密工业（深圳）有限公司|Heat radiating device|FR3031571B1|2015-01-09|2018-08-10|Valeo Vision|OPTICAL MODULE FOR VEHICLE PROJECTOR|
    FR3064049B1|2017-03-16|2021-07-09|Valeo Vision|OPTICAL MODULE INCLUDING A RADIATOR EQUIPPED WITH A VENT|
    DE102017114466A1|2017-06-29|2019-01-03|Automotive Lighting Reutlingen Gmbh|Aluminum heat sink for dissipating heat from semiconductor light sources and automotive lighting device with such a heat sink|
    EP3428514B1|2017-07-11|2022-01-05|Marelli Automotive Lighting Italy S.p.A.|Lighting device for vehicles provided with cooled lighting modules|
    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|
    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
    FR1550173|2015-01-09|
    FR1550173A|FR3031572B1|2015-01-09|2015-01-09|OPTICAL MODULE FOR VEHICLE PROJECTOR|FR1550173A| FR3031572B1|2015-01-09|2015-01-09|OPTICAL MODULE FOR VEHICLE PROJECTOR|
    JP2017536335A| JP6797806B2|2015-01-09|2016-01-08|Vehicle headlight optics module|
    KR1020177018701A| KR20170103796A|2015-01-09|2016-01-08|Optical module for vehicle headlight|
    PCT/EP2016/050288| WO2016110573A1|2015-01-09|2016-01-08|Optical module for vehicle headlight|
    CN201680005288.9A| CN107208863A|2015-01-09|2016-01-08|Optical module for front lamp of vehicle|
    EP16700194.0A| EP3243024B1|2015-01-09|2016-01-08|Optical module for vehicle headlight|
    US15/535,213| US9958129B2|2015-01-09|2016-01-08|Optical module for vehicle headlight|
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