CN212618104U

CN212618104U - Radiator for car lamp

Info

Publication number: CN212618104U
Application number: CN202021426382.1U
Authority: CN
Inventors: 辛忠华; 万毅栋; 丁文荣
Original assignee: Varroc TYC Auto Lamps Co Ltd
Current assignee: Varroc TYC Auto Lamps Co Ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-02-26
Anticipated expiration: 2030-07-20

Abstract

The utility model discloses a radiator for car lamp, including the heat dissipation support, the one end that the heat source was kept away from to the heat dissipation support is provided with a plurality of fin, the one end that the heat source was close to the heat dissipation support is provided with the heat-conducting plate, be hollow cavity in the heat-conducting plate, be provided with the fluting in the fin, hollow cavity and fluting are communicating, be provided with porous imbibition core in the one end that is close to the heat source in the hollow cavity, the liquid has adhered to on the porous imbibition core, the surface of fin is wavy; the wavy radiating fins of the radiator for the vehicle lamp can increase the radiating area by about 18 percent compared with the flat radiating fins, save materials and the size of the radiator under the condition of ensuring the same radiating area, and the pneumatic structure ensures that the radiator has high radiating efficiency and ensures the stable working environment of electronic elements.

Description

Radiator for car lamp

Technical Field

The utility model relates to a car light field specifically is a radiator for car light.

Background

The LED light source is applied to the field of automobile illumination due to long service life, high reliability, small volume, low energy consumption and short response time. With the gradual maturity of the high-power, high-luminous-flux and high-illuminance-value LED technology and the following trend of the development of automobiles towards the directions of compactness, energy conservation, safety, intelligence and the like, the LED technology automatically becomes the choice of automobile illumination light sources, gradually replaces halogen and HID light sources, and becomes the fourth generation automobile green light source by the industry people.

However, the contradiction between the shrinking space of the vehicle lamp and the high heat brought by the high-performance LED is gradually highlighted. Because of the demand of molding, can arrange more dress escutcheon in the car light at present, compressed the arrangement space of light source, lead to the difficult effluvium of heat accumulation, can influence LED's performance. Increasing the area of the radiator is a solution to heat accumulation, but occupies more space in the vehicle; adding active heat sinks increases the cost and energy consumption of the vehicle. Therefore, a solution to increase the space utilization of the heat sink while increasing the heat dissipation efficiency is sought to balance space, cost, and heat.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a radiator for car light to solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a radiator for a car lamp comprises a radiating support, wherein the radiating support and other parts of the car lamp are fixed by screws, the radiator and an LED lamp are close to each other, heat emitted by the LED lamp is absorbed, one end, far away from a heat source, of the radiating support is provided with a plurality of radiating fins, the radiating fins are used for exchanging heat of the LED lamp with the outside to maintain a stable environment in the car lamp, one end, close to the heat source, of the radiating support is provided with a heat conducting plate, the heat conducting plate transfers the heat emitted by the LED lamp to the radiating fins, the radiating fins are arranged on the heat conducting plate at equal intervals, a hollow cavity is formed in the heat conducting plate, the heat conducting plate can transfer heat, slots are formed in the radiating fins, the hollow cavity is communicated with the slots, a porous liquid absorbing core is arranged in one end, close to the heat source, of the hollow cavity is, the LED lamp is easy to be heated and gasified, liquid is absorbed by the porous liquid absorption core when being in a liquid state, the liquid moves from the hollow cavity to the process of slotting when absorbing heat, heat is taken to the radiating fin from the heat conducting plate, the radiating fin exchanges energy with external air, the heat is transferred to the outside to be radiated, meanwhile, the liquid is cooled and solidified and is absorbed by the porous liquid absorption core again, the heat of the LED lamp can be radiated quickly through repeated circulation, the surface of the radiating fin is wavy, the wavy radiating fin has a larger surface area and cannot be increased in size when being compared with the traditional radiating fin, the contact area with air can be increased, and the heat exchange efficiency is increased.

Preferably, a plurality of pneumatic structures are arranged between the radiating fins and are also used for radiating in the car lamp, each pneumatic structure comprises a piston cylinder, a piston, a vertical moving rod, a gear, a rotating rod and fan blades, the piston cylinder is arranged on the radiating support, the piston cylinder is fixedly connected with the radiating support, the piston cylinder is communicated with the middle cavity, the piston is arranged in the piston cylinder, when liquid is gasified, and the radiating fins cannot liquefy the liquid in time, the residual kinetic energy of the gasified liquid can push the piston to move, one end of the piston extends into the hollow cavity, the other end of the piston is the vertical moving rod, the piston pushes the vertical moving rod to move when moving, the gear is arranged at the upper end of the vertical moving rod, teeth on the vertical moving rod are meshed with the gear, the gear is rotated when the vertical moving rod moves, and the rotating rod penetrates through the rotating rod in the gear, gear and dwang fixed connection, be provided with the flabellum on the dwang, the gear drives the dwang, drives the flabellum rotation then, and the flabellum makes the circulation of air, and supplementary fin dispels the heat fast with the air disturbance between the fin.

The piston cylinder is internally provided with a light spring, one end of the light spring is propped against the piston cylinder, the other end of the light spring is propped against the piston, and when the piston is pushed by the power generated by liquid gasification, the resilience of the light spring enables the piston to reset for the next movement.

Gear and dwang fixed connection, the position of dwang and heat dissipation leg joint is provided with the bearing, the bearing is used for assisting the dwang to rotate.

The thickness of the radiating fin is 4mm, and the thickness of the groove is 1.5 mm.

The heat dissipation support and the heat conduction plate are fixed through screws.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a three-dimensional drawing of radiator for car light sets up the fin surface as the wave shape, under the condition of same space occupancy, compare with the plane fin, can promote heat radiating area about 18%, under the condition of guaranteeing same heat radiating area, can save material and radiator size;

2. the utility model is internally provided with the porous liquid absorption core, the liquid on the porous liquid absorption core absorbs heat to rapidly expand, heat energy is rapidly transferred to the radiating fin, the heat energy is exchanged through the radiating fin, and meanwhile, the slotting arranged in the radiating fin can also lighten the weight of the radiator, so that the burden of the car lamp is lightened;

3. the utility model discloses set up the liquid that pneumatic structure and boiling point are high, can turn into gaseous kinetic energy with heat energy, turned into flabellum kinetic energy at last, the circulation of air between the fin is with higher speed, exchanges away heat energy, keeps the car light to work in a stable environment.

Drawings

Fig. 1 is a perspective view of a heat sink for a vehicle lamp according to the present invention;

FIG. 2 is a cross-sectional view of the heat sink of the present invention;

fig. 3 is a top cross-sectional view of a heat sink for a vehicle lamp according to the present invention;

FIG. 4 is a front view of the pneumatic structure of the present invention;

fig. 5 is a top view of the pneumatic structure of the present invention.

Reference numerals: a heat dissipation bracket; 2. a heat sink; 3. a hollow cavity; 4. grooving; 5. a porous wick; 6. a pneumatic structure; 7. a piston cylinder; 8. a piston; 9. a vertical motion bar; 10. a gear; 11. rotating the rod; 12. a fan blade; 13. a light spring; 14. a bearing; 15. a heat conducting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): referring to fig. 1 to 5, in an embodiment of the present invention, a heat sink for a vehicle lamp includes a heat dissipating support 1, the heat dissipating support 1 is fixed to other components of the vehicle lamp by screws, the heat dissipating support 1 is close to the LED lamp to absorb heat emitted from the LED lamp, a plurality of heat dissipating fins 2 are disposed at an end of the heat dissipating support 1 away from a heat source, the heat dissipating fins 2 are used for exchanging heat of the LED lamp with the outside to maintain a stable environment in the vehicle lamp, a heat conducting plate 15 is disposed at an end of the heat dissipating support 1 close to the heat source, the heat conducting plate 15 transfers the heat emitted from the LED lamp to the heat dissipating fins 2, the heat dissipating fins 2 are disposed on the heat conducting plate at equal intervals, a hollow cavity 3 is disposed in the heat conducting plate 15, the heat conducting plate 15 itself can transfer heat, a slot 4 is disposed in the heat dissipating fin 2, the hollow cavity, the liquid is attached to the porous liquid absorption core 5, the boiling point of the liquid is low, the liquid is easy to be heated and gasified, the liquid is adsorbed by the porous liquid absorption core 5 when being in a liquid state, the liquid absorbs heat to be gasified and expanded, the process of moving from the middle cavity 3 to the groove 4 is carried out, heat is carried to the radiating fin 2 from the heat conducting plate 15, the radiating fin 2 exchanges energy with external air, the heat is transferred to the outside to be radiated, meanwhile, the liquid is cooled and solidified and is adsorbed by the porous liquid absorption core 5 again, repeated circulation can rapidly radiate the heat of the LED lamp, the surface of the radiating fin 2 is wavy, the wavy radiating fin 2 is compared with a traditional radiating fin, the size of the LED lamp cannot be increased while the surface area is larger, the contact area with air can be.

A plurality of pneumatic structures 6 are arranged between the radiating fins 2, the pneumatic structures 6 are also used for radiating in the car lamp, each pneumatic structure 6 comprises a piston cylinder 7, a piston 8, a vertical moving rod 9, a gear 10, a rotating rod 11 and a fan blade 12, the piston cylinder 7 is arranged on the radiating support 1, the piston cylinder 7 is fixedly connected with the radiating support 1, the piston cylinder 7 is communicated with the hollow cavity 3, the piston 8 is arranged in the piston cylinder 7, when liquid is gasified, and the radiating fins 2 cannot liquefy the liquid in time, the residual kinetic energy of the gasified liquid can push the piston 8 to move, one end of the piston 8 extends into the hollow cavity 3, the other end of the piston 8 is the vertical moving rod 9, when the piston 8 moves, the vertical moving rod 9 is pushed to move, the gear 10 is arranged at the upper end of the vertical moving rod 9, teeth on the vertical moving rod 9 are meshed with the gear 10, when the vertical moving rod 9 moves, the,

gear

10 and 11 fixed connection of dwang are provided with flabellum 12 on the dwang 11, and gear 10 drives dwang 11, drives flabellum 12 then and rotates, and flabellum 12 makes the circulation of air, and supplementary fin 2 dispels the heat fast with the air disturbance between fin 2.

Be provided with light spring 13 in the piston barrel 7, light spring 13 one end is supported on piston barrel 7, and light spring 13 other end supports on piston 8, and when the power of liquid gasification promoted piston 8, the elasticity that light spring 13 kick-backed makes piston 8 reset, carries out the motion next time.

The gear 10 is fixedly connected with the rotating rod 11, a bearing 14 is arranged at the connecting position of the rotating rod 11 and the heat dissipation support 1, and the bearing 14 is used for assisting the rotating rod to rotate.

The thickness of the fin 2 is 4mm and the thickness of the slot 4 is 1.5 mm.

The heat dissipation bracket 1 and the heat conduction plate 15 are fixed by screws.

The utility model discloses a theory of operation is: the heat generated by the light emitting of the LED lamp is transmitted to the radiating fins 2 through the heat conducting plate 15, the radiating fins 2 exchange heat with the external air to transmit the heat in the car lamp, the radiating fins 2 are wave-shaped, the contact area between the radiating fins 2 and the external air is increased, the heat exchange efficiency is improved, meanwhile, the liquid on the porous liquid absorbing core 5 in the hollow cavity 3 absorbs heat, vaporizes and expands, and the heat is carried to the radiating fins 2 from the heat conducting plate 15 in the process that the liquid on the porous liquid absorbing core 5 moves to the grooves 4, the heat is exchanged between the radiating fins 2 and the external air to transmit the heat to the outside to be dissipated, meanwhile, the liquid is cooled and solidified, the liquid absorbing core is absorbed by the porous liquid absorbing core 5 again, the heat of the LED lamp can be rapidly dissipated through repeated circulation, when the radiating fins 2 cannot liquefy the liquid in time, the residual kinetic energy of the liquid, when the vertical motion rod 9 moves, the gear 10 is rotated, the gear 10 drives the rotating rod 11, then the fan blades 12 are driven to rotate, the fan blades 12 disturb the air between the radiating fins 2, air circulation is enabled, the radiating fins 2 are assisted to dissipate heat quickly, when the piston 8 is pushed by the power of liquid gasification, the piston 8 is reset by the elastic force of the light spring 13, and the next movement is carried out.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a radiator for car light, includes heat dissipation support (1), its characterized in that: the one end that the heat source was kept away from in heat dissipation support (1) is provided with a plurality of fin (2), the one end that heat dissipation support (1) is close to the heat source is provided with heat-conducting plate (15), well cavity (3) are in heat-conducting plate (15), be provided with fluting (4) in fin (2), well cavity (3) and fluting (4) communicate with each other, be provided with porous wick (5) in the one end that is close the heat source in well cavity (3), it has liquid to adhere to on porous wick (5), the surface of fin (2) is wavy.

2. A radiator for a vehicular lamp according to claim 1, wherein: be provided with a plurality of pneumatic structure (6) between fin (2), pneumatic structure (6) include piston cylinder (7), piston (8), vertical motion pole (9), gear (10), dwang (11), flabellum (12), piston cylinder (7) set up on heat dissipation support (1), piston (8) set up in piston cylinder (7), piston (8) one end is stretched into in well cavity (3), the piston (8) other end is vertical motion pole (9), gear (10) set up in vertical motion pole (9) upper end, tooth and gear (10) meshing on vertical motion pole (9), dwang (11) are passed in gear (10), be provided with flabellum (12) on the dwang.

3. A radiator for a vehicular lamp according to claim 2, wherein: a light spring (13) is arranged in the piston cylinder (7), one end of the light spring (13) is abutted against the piston cylinder (7), and the other end of the light spring (13) is abutted against the piston (8).

4. A radiator for a vehicular lamp according to claim 2, wherein: gear (10) and dwang (11) fixed connection, the position that dwang (11) and heat dissipation support (1) are connected is provided with bearing (14).

5. A radiator for a vehicular lamp according to claim 1, wherein: the thickness of the radiating fin (2) is 4mm, and the thickness of the groove (4) is 1.5 mm.

6. A radiator for a vehicular lamp according to claim 1, wherein: the heat dissipation support (1) and the heat conduction plate (15) are fixed through screws.