CN217843731U

CN217843731U - Heat radiator for car light

Info

Publication number: CN217843731U
Application number: CN202221914223.5U
Authority: CN
Inventors: 黄佳佳; 严帅; 陆春艳; 华圣熙
Original assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Current assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-11-18
Anticipated expiration: 2032-07-25

Abstract

The utility model relates to a vehicle lighting technology field especially relates to a heat abstractor for car light, include: the heat dissipation assembly comprises a base and a plurality of radiating fins positioned on one side of the base, the base comprises a first surface and a second surface which are arranged in a back-to-back mode, and the plurality of radiating fins are arranged on the first surface; the fan assembly is positioned below the plurality of radiating fins and is detachably connected with the radiating assembly; and the light source assembly is fixedly connected with the second surface. The utility model discloses a heat abstractor for car light can in time dispel the heat to LED, has improved the life of lens lamp module, guarantees that the car light normally works.

Description

Heat radiator for car light

Technical Field

The utility model relates to a vehicle lighting technology field especially relates to a heat abstractor for car light.

Background

With the rapid development of science and technology, LED lamps are more and more common, and the LED lamps have the characteristics of small bulb volume, light weight, high light efficiency, energy conservation, environmental protection, long service life and the like, so that the LED lamps are more and more widely applied to the work and life of people.

The requirement of a lens lamp module, which is a core light-emitting unit in a car lamp, is increased, more and more lens lamp modules adopt adaptive high beams (ADB), so that the dosage of LEDs on the lens lamp modules is increased sharply, namely, five to six LEDs in the conventional lens lamp modules are increased to thirty or more than hundred LEDs in the conventional lens lamp modules, and in the working process, along with the extension of the service time, the temperature in the car lamp is gradually increased, if the LEDs in the lens lamp modules are not timely radiated, the LEDs are heated and burnt, the internal electronic components are easily damaged, the service life of the lens lamp modules is shortened, the normal work of the car lamp is further influenced, and even the car lamp is damaged.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the extension of lens lamp module along with live time, the temperature in the lamp risees gradually, and LED can not in time radiating problem, the utility model provides a heat abstractor for the car light can in time dispel the heat to LED, has improved the life of lens lamp module, guarantees that the car light normally works.

The utility model provides a technical scheme that its technical problem adopted is: a heat sink for a vehicle lamp, comprising: the radiating assembly comprises a base and a plurality of radiating fins positioned on one side of the base, the base comprises a first surface and a second surface which are arranged in a back-to-back mode, and the plurality of radiating fins are arranged on the first surface; the fan assembly is positioned below the plurality of radiating fins and is detachably connected with the radiating assembly; and the light source assembly is fixedly connected with the second surface. When the light source assembly works, the light source assembly is cooled through the plurality of cooling fins and the fan assembly, air fluidity in the cooling assembly is good, the service life of the light source assembly is prolonged, and normal work of the light source assembly is guaranteed.

Further, specifically, the plurality of cooling fins are all C-shaped fins, and each C-shaped fin comprises a supporting portion and extending portions symmetrically arranged on two sides of the supporting portion; the C-shaped openings of the C-shaped fins are arranged in the same direction, the distance between every two adjacent C-shaped fins is smaller than 1mm, and the extension part, close to the first surface, of each C-shaped fin is fixedly connected with the first surface. The C type radiator unit that C type fin is constituteed can form fore-and-aft circulation of air passageway in C type radiator unit middle part, and the clearance between the C type fin can form horizontal circulation of air clearance, and fore-and-aft circulation of air passageway and horizontal circulation of air clearance mutually support and form the heat dissipation space of multidimension degree, and the air is because pressure increase when the clearance, can improve the velocity of flow, further improves the radiating efficiency.

Further, specifically, the heat dissipation assembly further comprises two support structures, the two support structures are symmetrically arranged in a front-back direction, and the inner surfaces of the two support structures are fixedly connected with the plurality of heat dissipation fins.

Further, specifically, the fan assembly comprises a fan and a fan fixing frame, the fan fixing frame is provided with a hollow cavity, the fan is installed in the hollow cavity, and the fan fixing frame is detachably connected to the outer surfaces of the two supporting structures.

Further, specifically, each of the two support structures comprises a first support and a second support, one end of the first support is fixed at one end of the second support, and the length direction of the first support is perpendicular to the length direction of the second support; the first support is fixedly connected below the plurality of radiating fins, and the second support is fixedly connected on one side, far away from the base, of the plurality of radiating fins.

Further, in particular, in order to facilitate the installation of the fan assembly, a first positioning column and a first installation hole are arranged on the first bracket; the fan fixing frame is provided with a first positioning hole matched with the first positioning column and a second mounting hole corresponding to the first mounting hole; the first positioning column is inserted in the first positioning hole, and the first screw penetrates through the second mounting hole to the first mounting hole, so that the fan fixing frame is fixed on the first support.

Further, specifically, in order to facilitate the installation of the photovoltaic module, the heat dissipation assembly further includes two side walls, and the two side walls stand on the second surface and form an accommodating groove with the base; a second positioning column and a third mounting hole are arranged on the second surface; a second positioning hole matched with the second positioning column and a fourth mounting hole corresponding to the third mounting hole are formed in the photovoltaic assembly; the photovoltaic module is located in the accommodating groove, the second positioning column is inserted into the second positioning hole, the second screw penetrates through the fourth mounting hole to the third mounting hole, the photovoltaic module is fixedly connected with the second surface, and after the photovoltaic module is connected with the second surface, the photovoltaic module is attached to the second surface.

Further, specifically, in order to improve the heat dissipation effect, a heat conducting adhesive layer is arranged between the photovoltaic module and the second surface.

Further, specifically, the thickness of the C-shaped fin is 0.4mm, the height of the C-shaped fin is H, and H is more than 60mm.

The beneficial effects of the utility model are that, the utility model discloses a during operation of heat abstractor light source subassembly for the car light is through having set up a plurality of fin and fan unit spare for the heat dissipation of light source subassembly is faster, has prolonged the life of light source subassembly, guarantees that the light source subassembly normally works, is connected with fan unit spare through setting up bearing structure on the fin in addition, makes heat abstractor simple structure for the car light, simple to operate, and the practicality is good.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the preferred embodiment of the present invention.

Fig. 2 is an exploded view of the preferred embodiment of the present invention.

Figure 3 is a cross-sectional view of the preferred embodiment of the invention.

Fig. 4 is a schematic structural view of the heat dissipation assembly of the present invention.

Fig. 5 is a bottom schematic view of the heat dissipation assembly of the present invention.

Fig. 6 is a schematic structural diagram of the heat sink of the present invention.

In fig. 1, a heat dissipation assembly; 11. a base; 111. a first surface; 112. a second surface; 1121. a second positioning column; 1122. a third mounting hole; 12. a heat sink; 121. a support portion; 122. an extension portion; 13. a support structure; 131. a first bracket; 132. a second bracket; 1311. a first positioning column 1311; 1312. a first mounting hole; 14. a side wall; 15. accommodating grooves;

2. a fan assembly; 21. a fan; 22. a fan fixing frame; 221. a first positioning hole; 222. a second mounting hole;

3. a light source assembly; 31. a second positioning hole; 32. a fourth mounting hole;

4. a first screw;

5. a second screw;

6. and the heat-conducting adhesive layer.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1 to 6, according to the preferred embodiment of the present invention, a heat dissipation device for a vehicle lamp includes: the heat dissipation assembly 1 comprises a base 11 and a plurality of heat dissipation fins 12 positioned on one side of the base 11, wherein the base 11 comprises a first surface 111 and a second surface 112 which are oppositely arranged, and the plurality of heat dissipation fins 12 are arranged on the first surface 111; the fan component 2 is positioned below the plurality of radiating fins 12 and is detachably connected with the radiating component 1; the light source assembly 3, the light source assembly 3 is fixedly connected with the second surface 112. Light source subassembly 3 during operation dispels the heat to light source subassembly 3 through a plurality of fin 12 and fan module 2, and the air mobility in the radiating subassembly is good, has improved light source subassembly 3's life, guarantees that light source subassembly 3 normally works.

In the embodiment, each of the plurality of heat sinks 12 is a C-shaped fin, and the C-shaped fin includes a support portion 121 and extension portions 122 symmetrically disposed at two sides of the support portion 121; the C-shaped openings of the C-shaped fins are arranged in the same direction, the distance between every two adjacent C-shaped fins is smaller than 1mm, the extending portion 122 close to the first surface 111 is fixedly connected with the first surface 111, concretely, the extending portion 122 close to the first surface 111 in each C-shaped fin is fixedly connected with the first surface 111 in a welding mode, tin-silver-copper alloy paste is adopted as welding tin materials during welding, gaps between the extending portions 122 and the first surface 111 are filled, thermal resistance between the extending portions 122 and the first surface 111 is reduced, and the heat dissipation effect is improved. The C type radiator unit that C type fin is constituteed can form fore-and-aft circulation of air passageway in C type radiator unit middle part, and the clearance between the C type fin can form horizontal circulation of air clearance, and fore-and-aft circulation of air passageway and horizontal circulation of air clearance mutually support and form the heat dissipation space of multidimension degree, and the air is because pressure increase when the clearance, can improve the velocity of flow, further improves the radiating efficiency.

In an embodiment, the heat dissipation assembly 1 further includes two supporting structures 13, the two supporting structures 13 are symmetrically disposed in front and back, inner surfaces of the two supporting structures 13 are fixedly connected to the plurality of heat dissipation fins 12, and specifically, the inner surfaces of the two supporting structures 13 are fixedly connected to the plurality of heat dissipation fins 12 by welding.

In an embodiment, the fan assembly 2 comprises a fan 21 and a fan holder 22, the fan holder 22 has a hollow cavity, the fan 21 is mounted in the hollow cavity, and the fan holder 22 is detachably connected to the outer surfaces of the two support structures 13.

In the embodiment, the two support structures 13 each include a first bracket 131 and a second bracket 132, one end of the first bracket 131 is fixed to one end of the second bracket 132, and the length direction of the first bracket 131 and the length direction of the second bracket 132 are perpendicular to each other; first bracket 131 is fixedly connected below plurality of heat sinks 12, and second bracket 132 is fixedly connected on a side of plurality of heat sinks 12 away from base 11. Specifically, the first bracket 131 is provided with a first positioning column 1311 and a first mounting hole 1312; the fan fixing frame 22 is provided with a first positioning hole 221 matched with the first positioning column 1311 and a second mounting hole 222 corresponding to the first mounting hole 1312; the first positioning column 1311 is inserted into the first positioning hole 221, and the fan fixing bracket 22 is fixed to the first bracket 131 by passing the first screw 4 through the second mounting hole 222 to the first mounting hole 1312. First locating column 1311 and first locating hole 221 are fixed a position when being convenient for fan assembly 2 to install, and cooperate through first screw 4 and second mounting hole 222 and first mounting hole 1312, and the installation of fan assembly 2 of being convenient for is fixed, for prior art, has reduced conventional punching press radiator unit 1 and has installed fan 21 and need set up connection structure alone, has reduced the cost, just the utility model discloses simple structure, simple to operate, the practicality is good.

In the embodiment of the present invention, the first bracket 131 is in the shape of an arc sheet, the first bracket 131 of one of the supporting structures 13 is close to the joint of the second bracket 132, and is provided with the first positioning column 1311, the first positioning column 1311 and the first mounting hole 1312 are symmetrically disposed, and the first bracket 131 of the other supporting structure 13 is close to the joint of the second bracket 132 and is provided with the first mounting hole 1312, and the first mounting hole 1312 and the first positioning column 1311 are symmetrically disposed, so as to facilitate the installation of the fan assembly 2.

In the embodiment, the heat dissipation assembly 1 further includes two side walls 14 standing on the second surface 112 and forming a receiving groove 15 with the base 11; second positioning pillar 1121 and third mounting hole 1122 are disposed on second surface 112; the light source assembly 3 is provided with a second positioning hole 31 matching with the second positioning post 1121, and a fourth mounting hole 32 corresponding to the third mounting hole 1122; light source assembly 3 is located in accommodating groove 15, second positioning column 1121 is inserted into second positioning hole 31, and passes through fourth mounting hole 32 to third mounting hole 1122 through second screw 5, light source assembly 3 is fixedly connected with second surface 112, and after connection, light source assembly 3 is attached to second surface 112. Second positioning column 1121 and second positioning hole 31 facilitate positioning during installation of light source assembly 3, and are matched with fourth mounting hole 32 and third mounting hole 1122 through second screw 5, so as to facilitate installation and fixation of light source assembly 3.

It should be noted that the first positioning posts 1311 are connected to the first bracket 131 by punching and riveting, the first positioning posts 1311 punched and riveted on the first bracket 131 facilitate positioning and mounting of the fan assembly 2, the second positioning posts 1121 are connected to the second surface 112 by punching and riveting, and the second positioning posts 1121 punched and riveted on the base 12 facilitate positioning and mounting of the light source assembly 3.

In an embodiment, a thermally conductive adhesive layer 6 is arranged between the light source assembly 3 and the second surface 112. The heat conducting glue is uniformly coated on the surface of the light source assembly 3 to form the heat conducting glue layer 6, then the light source assembly 3 is fixedly attached to the second surface 112, the heat conducting glue layer 6 reduces the thermal resistance between the light source assembly 3 and the base 11, and the heat dissipation effect is further improved.

In the embodiment, the thickness of the C-shaped fin is 0.4mm, the heat dissipation function and the strength of the C-shaped fin are ensured, the height of the C-shaped fin is H, and H is more than 60mm.

In the embodiment, the plurality of heat dissipation fins 12 have more effective heat dissipation surface areas under the same volume, and are matched with the fan 21, so that the heat dissipation effect is good, the structure is simple, the heat dissipation device is small in volume, and the occupied space of the lamp is reduced.

The working principle is as follows:

when the light source assembly 3 works, the heat of the light source assembly 3 is transmitted to the radiating fins 12 through the base 11, hot air on the radiating fins 12 is blown out from gaps among the radiating fins 12 through the fan 21 and blown to the upper sides of the radiating fins 12, and cold air is blown into the gaps among the radiating fins 12 from the lower sides of the radiating fins 12 through the fan 21, so that the circulation is realized, the heat of the light source assembly 3 is dissipated, the service life of the light source assembly 3 is prolonged, and the normal work of the light source assembly 3 is ensured.

The utility model discloses a heat abstractor light source subassembly during operation for the car light is through having set up a plurality of fin and fan assembly for the heat dissipation of light source subassembly is faster, has prolonged the life of light source subassembly, guarantees light source subassembly normal work, is connected with fan assembly through setting up bearing structure on the fin in addition, makes heat abstractor simple structure for the car light, simple to operate, and the practicality is good.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A heat dissipating device for a vehicle lamp, comprising:

the heat dissipation assembly (1) comprises a base (11) and a plurality of radiating fins (12) positioned on one side of the base (11), wherein the base (11) comprises a first surface (111) and a second surface (112) which are oppositely arranged, and the plurality of radiating fins (12) are arranged on the first surface (111);

the fan assembly (2) is positioned below the plurality of radiating fins (12), and is detachably connected with the radiating assembly (1);

a light source assembly (3), the light source assembly (3) being fixedly connected with the second surface (112).

2. The heat sink for vehicle lamps according to claim 1, wherein the plurality of heat dissipating fins (12) are arranged at intervals, and each of the heat dissipating fins (12) is a C-shaped fin including a supporting portion (121) and extending portions (122) symmetrically arranged on both sides of the supporting portion (121);

the C-shaped openings of the C-shaped fins are arranged in the same direction, the distance between every two adjacent C-shaped fins is smaller than 1mm, and the extension portion (122) close to the first surface (111) in each C-shaped fin is fixedly connected with the first surface (111).

3. The heat dissipating device for a vehicular lamp according to claim 2, wherein the heat dissipating module (1) further comprises two supporting structures (13), the two supporting structures (13) are symmetrically disposed in front and rear, and inner surfaces of the two supporting structures (13) are fixedly connected to the plurality of heat dissipating fins (12).

4. A heat sink for a vehicle lamp according to claim 3, wherein the fan assembly (2) comprises a fan (21) and a fan holder (22), the fan holder (22) having a hollow cavity, the fan (21) being mounted in the hollow cavity, the fan holder (22) being detachably attached to the outer surfaces of the two support structures (13).

5. The heat sink for vehicle lamps according to claim 4, wherein both support structures (13) comprise a first bracket (131) and a second bracket (132), one end of the first bracket (131) is fixed to one end of the second bracket (132), and the length direction of the first bracket (131) and the length direction of the second bracket (132) are perpendicular to each other;

the first support (131) is fixedly connected below the plurality of radiating fins (12), and the second support (132) is fixedly connected to one side, away from the base (11), of the plurality of radiating fins (12).

6. The heat sink for a vehicular lamp according to claim 5, wherein the first bracket (131) is provided with a first positioning column (1311) and a first mounting hole (1312);

the fan fixing frame (22) is provided with a first positioning hole (221) matched with the first positioning column (1311) and a second mounting hole (222) corresponding to the first mounting hole (1312);

the first positioning column (1311) is inserted into the first positioning hole (221), and a first screw (4) penetrates through the second mounting hole (222) to the first mounting hole (1312) to fix the fan fixing frame (22) on the first bracket (131).

7. The heat sink for vehicle lamp according to claim 1, wherein the heat sink assembly (1) further comprises two side walls (14), the two side walls (14) standing on the second surface (112) respectively and forming a receiving groove (15) with the base (11);

a second positioning column (1121) and a third mounting hole (1122) are arranged on the second surface (112);

a second positioning hole (31) matched with the second positioning column (1121) and a fourth mounting hole (32) corresponding to the third mounting hole (1122) are formed in the light source component (3);

the light source assembly (3) is located in the accommodating groove (15), the second positioning column (1121) is inserted into the second positioning hole (31), a second screw (5) penetrates through the fourth mounting hole (32) to the third mounting hole (1122), the light source assembly (3) is fixedly connected with the second surface (112), and after connection, the light source assembly (3) is attached to the second surface (112).

8. The heat sink for a vehicle lamp according to claim 7, wherein a heat conductive adhesive layer (6) is provided between the light source assembly (3) and the second surface (112).

9. A heat sink for vehicular lamp according to claim 2, wherein said C-shaped fin has a thickness of 0.4mm and a height H > 60mm.