Car lamp with high heat dissipation performance
By using a stepped radiator made of graphene material, the problems of high manufacturing difficulty and insufficient heat dissipation performance caused by the complex structure of traditional vehicle light radiators have been solved. This has achieved efficient heat dissipation and low-cost manufacturing, extended the service life of vehicle lights, and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional automotive headlight heat sinks have complex structures, resulting in high manufacturing difficulty, high cost, and insufficient heat dissipation performance, making it difficult to meet the needs of high-power LED headlights.
The heat sink, made of graphene material, is designed with a stepped layout to accommodate the staggered requirements of different light panels. It is formed in one piece using injection molding, avoiding the traditional splicing structure. The high plasticity and high thermal conductivity of graphene material improve heat dissipation efficiency.
It reduces mold costs, simplifies the manufacturing process, improves heat dissipation, extends the lifespan of the headlights, and reduces light path interference, ensuring the safety and reliability of the headlights.
Smart Images
Figure CN224121088U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lighting technology, and in particular to a vehicle lamp with high heat dissipation performance. Background Technology
[0002] Traditional automotive headlight heat sinks are mostly made of aluminum alloy and manufactured through extrusion molding. However, these heat sinks generally require a front and rear design to accommodate the staggered layout of high and low beam headlights. This results in a complex heat sink structure, the extrusion mold must withstand high pressure, and stringent design and manufacturing precision requirements. The high complexity of the mold leads to high processing costs and long lead times. At the same time, aluminum alloy has a limited thermal conductivity, making its heat dissipation performance insufficient for the needs of high-power LED automotive lights. Therefore, improvements are urgently needed. Utility Model Content
[0003] The main purpose of this invention is to propose a vehicle lamp with high heat dissipation performance, which solves the problem that the heat sink of vehicle lamps is difficult to manufacture due to its complex structure and layout in related technologies.
[0004] To achieve the above objectives, this utility model proposes a vehicle lamp with high heat dissipation performance, comprising:
[0005] Lamp housing, the lamp housing having a mounting cavity;
[0006] The radiator is installed in the mounting cavity and is made of graphene material. The radiator has a first light source mounting surface and a second light source mounting surface arranged along the headlight illumination direction. The projections of the first light source mounting surface and the second light source mounting surface along the headlight illumination direction do not overlap. The first light source mounting surface and the second light source mounting surface are arranged in a stepped manner along the headlight illumination direction.
[0007] Two lamp panels are respectively mounted on the first light source mounting surface and the second light source mounting surface.
[0008] In some embodiments, the first light source mounting surface is positioned higher than the second light source mounting surface along the direction of the vehicle headlight illumination, and the two lamp panels are respectively a low beam lamp panel and a high beam lamp panel, with the high beam lamp panel mounted on the first light source mounting surface and the low beam lamp panel mounted on the second light source mounting surface.
[0009] In some embodiments, the first light source mounting surface is set 30 to 40 mm higher than the second light source mounting surface.
[0010] In some embodiments, heat dissipation fins are provided on the back of both the first light source mounting surface and the second light source mounting surface.
[0011] In some embodiments, the lamp housing is provided with at least two vent holes, the two vent holes being located on the back sides of the first light source mounting surface and the second light source mounting surface, respectively, and both vent holes being disposed adjacent to the heat dissipation fin assembly.
[0012] In some embodiments, the heat dissipation fins are arranged radially or in multiple fins spaced apart, and the thickness of each fin in the heat dissipation fins group is 0.5-1.5 mm.
[0013] In some embodiments, both the first light source mounting surface and the second light source mounting surface are provided with positioning posts and threaded holes, and the two lamp boards are provided with positioning holes at the positions corresponding to the positioning posts, and the two lamp boards are provided with through holes at the positions corresponding to the threaded holes.
[0014] In some embodiments, the lamp housing includes a bottom shell and a lampshade, the lampshade being detachably connected to the bottom shell, and the lampshade and the bottom shell together forming the mounting cavity.
[0015] In some embodiments, the heat sink is manufactured using an injection molding process.
[0016] The beneficial effects of this utility model's technical solution are as follows:
[0017] The high-heat-dissipation-performance vehicle light radiator of this invention is made of graphene material. The radiator is designed with a stepped layout to accommodate the staggered requirements of different lamp panels. It is molded in one piece, avoiding the traditional splicing structure. Furthermore, the stepped layout does not overlap in the direction of light projection, which can reduce light path interference. Due to the high malleability of graphene material, and the fact that the radiator is made of graphene material, the mold cost is low. This design ensures that the radiator structure meets the layout and installation requirements of the vehicle light, while also satisfying the irregular structural design of the radiator itself. This improves the plasticity of the radiator, facilitates processing and manufacturing, reduces costs, and provides better heat dissipation, lighter weight, and extended service life of the vehicle light. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a high-heat-dissipation vehicle lamp according to an embodiment of the present invention;
[0019] Figure 2 This is an exploded view of the high heat dissipation performance vehicle lamp according to an embodiment of the present invention;
[0020] Figure 3 for Figure 1 Schematic diagram of the radiator structure;
[0021] Figure 4 for Figure 1 Another structural diagram of the radiator;
[0022] Figure 5 This is a structural schematic diagram of the high heat dissipation performance vehicle lamp from another perspective, representing an embodiment of this utility model.
[0023] Explanation of icon numbers:
[0024] 100. Lamp housing; 110. Mounting cavity; 120. Vent hole; 130. Base shell; 140. Lamp cover; 200. Heat sink; 210. First light source mounting surface; 220. Second light source mounting surface; 230. Heat dissipation fins; 240. Positioning post; 250. Threaded hole; 300. Low beam lamp panel; 400. High beam lamp panel; a. Headlight illumination direction. Detailed Implementation
[0025] The solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model. In addition, the descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.
[0026] To address the technical deficiencies in related technologies, this utility model provides a vehicle lamp with high heat dissipation performance. Please refer to [link / reference]. Figures 1 to 4 It includes: lamp housing 100, radiator 200 and two lamp plates. The lamp housing 100 has a mounting cavity 110. As a supporting component for various parts of the vehicle lamp, the lamp housing 100 can be structurally designed according to the specific needs of the vehicle lamp. The mounting cavity 110 can also be designed with mounting threaded holes 250, positioning holes and the like according to the shape of other parts of the vehicle lamp.
[0027] Specifically, the radiator 200 is installed in the mounting cavity 110. The radiator 200 can be installed in the mounting cavity 110 by snap-fit, for example, the mounting cavity 110 is provided with snap-fit parts, and the radiator 200 is provided with snap-fit grooves corresponding to the snap-fit parts. Of course, the radiator 200 can also be installed in the mounting cavity 110 by screw fastening or other connection methods, which are not specifically limited here.
[0028] The radiator 200 is made of graphene material, which has high plasticity and processability, allowing for high freedom in structural design. In this embodiment, the radiator 200 is manufactured using injection molding, a process that allows for one-time molding and is fast, suitable for the complex irregular structure of the radiator 200. Compared to traditional aluminum profile extrusion molding, it overcomes the limitations of aluminum alloy molding processes and offers advantages such as high thermal conductivity, lightweight, and corrosion resistance. Therefore, graphene material is suitable for the complex structure and high thermal conductivity requirements of automotive light radiators 200. Furthermore, the radiator 200 has a first light source mounting surface 210 and a second light source mounting surface 220 arranged along the headlight illumination direction a. The projections of the first light source mounting surface 210 and the second light source mounting surface 220 along the headlight illumination direction a do not overlap, and they are arranged in a stepped layout along the headlight illumination direction a. Two lamp plates are respectively mounted on the first light source mounting surface 210 and the second light source mounting surface 220. The first light source mounting surface 210 and the second light source mounting surface 220 of the heat sink 200 are mainly used to mount the lamp panel. The heat emitted by the lamp panel during operation can be directly transferred to the heat sink 200. The heat sink 200 dissipates the heat through its high thermal conductivity, which can cool the lamp panel and extend its service life. Since the projections of the first light source mounting surface 210 and the second light source mounting surface 220 along the headlight illumination direction a do not overlap, the optical paths of the two lamp panels mounted on the first light source mounting surface 210 and the second light source can avoid mutual interference. The staggered design of the stepped layout is suitable for the installation requirements of high beam and low beam lamps.
[0029] Through the above technical solution, the radiator 200 of the high heat dissipation vehicle light is made of graphene material. The radiator 200 is designed with a stepped layout to adapt to the staggered requirements of different lamp panels. It is formed in one piece, avoiding the traditional splicing structure. Moreover, the stepped layout does not overlap in the projection direction of the light, which can reduce light path interference. Due to the high plasticity of graphene material, and the fact that the radiator 200 is made of graphene material, its mold cost is low. While ensuring that the structure of the radiator 200 meets the layout and installation requirements of the vehicle light, it also meets the irregular structural design of the radiator 200 itself, improves the plasticity of the radiator 200, facilitates processing and manufacturing, reduces costs, and has better heat dissipation effect, is lighter, and can extend the service life of the vehicle light.
[0030] It should be noted that the main function of the high beam lamp panel 400 is to illuminate the road ahead, helping drivers see further in high-speed or dark environments; while the low beam lamp panel 300 is used for short-range illumination to avoid dazzling oncoming drivers. In this embodiment, the first light source mounting surface 210 is positioned higher than the second light source mounting surface 220 along the direction of the vehicle headlight illumination. The two lamp panels are the low beam lamp panel 300 and the high beam lamp panel 400, respectively. The high beam lamp panel 400 is mounted on the first light source mounting surface 210, and the low beam lamp panel 300 is mounted on the second light source mounting surface 220. This arrangement avoids the high beam lamp panel 400 being installed too low, which would not effectively illuminate distant objects and affect driving safety. Conversely, it also avoids the low beam lamp panel 300 being positioned too high, directly shining into the eyes of oncoming drivers, causing glare and increasing the risk of accidents.
[0031] Specifically, in some embodiments, the first light source mounting surface 210 is set 30 to 40 mm higher than the second light source mounting surface 220. This distance can prevent the beams of the two lamps from overlapping in the close-range area and reduce stray light interference.
[0032] In order to further improve the heat dissipation effect of the heat sink 200, in this embodiment, heat dissipation fins 230 are provided on the back of both the first light source mounting surface 210 and the second light source mounting surface 220.
[0033] In some embodiments, the lamp housing 100 is provided with at least two vent holes 120, which are located on the back sides of the first light source mounting surface 210 and the second light source mounting surface 220, respectively, and are both located adjacent to the heat dissipation fins 230 group. Through the vent holes 120, the heat on the heat dissipation fins 230 group can be transferred to the external environment of the lamp housing 100, thus preventing the internal temperature of the mounting cavity 110 from becoming too high.
[0034] The heat dissipation fins 230 can be arranged in a radial pattern or in multiple spaced-apart fins. The thickness of each fin in the heat dissipation fin group 230 is 0.5-1.5mm. Thin fins dissipate heat quickly, and the heat dissipation fins 230 can increase the contact area between the heat sink 200 and the outside air, thereby improving heat dissipation efficiency.
[0035] To facilitate the installation of the two lamp panels, in this embodiment, both the first light source mounting surface 210 and the second light source mounting surface 220 are provided with positioning posts 240 and threaded holes 250. Positioning holes are provided at the positions corresponding to the positioning posts 240 on both lamp panels, and through holes are provided at the positions corresponding to the threaded holes 250 on both lamp panels. The positioning holes and positioning posts 240 on the lamp panels are then inserted and pre-fixed to the heat sink 200. The lamp panels are then secured to the heat sink 200 by screw fastening, with screws passing through the through holes on the lamp panels and threaded into the threaded holes 250.
[0036] In some embodiments, the lamp housing 100 includes a base shell 130 and a lampshade 140, which are detachably connected to the base shell 130. The lampshade 140 and the base shell 130 together enclose a mounting cavity 110. Thus, when maintenance or replacement of components such as the lamp panel installed in the mounting cavity 110 is required, the lampshade 140 can be directly removed for disassembly and maintenance. Furthermore, the base shell 130 and the lampshade 140 are connected by snap-fit, facilitating the separation of the base shell 130 and the lampshade 140 by maintenance personnel without the use of disassembly tools.
[0037] The above description is only a part or preferred embodiment of this utility model. Neither the text nor the drawings should limit the scope of protection of this utility model. All equivalent structural transformations made using the content of this utility model specification and drawings under the overall concept of this utility model, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.
Claims
1. A vehicle lamp with high heat dissipation performance, characterized in that, The high-heat-dissipation-performance vehicle lamp includes: Lamp housing (100), the lamp housing (100) having a mounting cavity (110); A radiator (200) is installed in a mounting cavity (110). The radiator (200) is made of graphene material. The radiator (200) has a first light source mounting surface (210) and a second light source mounting surface (220) arranged along the headlight illumination direction. The projections of the first light source mounting surface (210) and the second light source mounting surface (220) along the headlight illumination direction do not overlap. The first light source mounting surface (210) and the second light source mounting surface (220) are arranged in a stepped manner along the headlight illumination direction. Two lamp panels are respectively mounted on the first light source mounting surface (210) and the second light source mounting surface (220).
2. The high heat dissipation performance vehicle lamp according to claim 1, characterized in that, The first light source mounting surface (210) is set higher than the second light source mounting surface (220) along the direction of the vehicle headlight illumination. The two lamp panels are a low beam lamp panel (300) and a high beam lamp panel (400). The high beam lamp panel (400) is mounted on the first light source mounting surface (210), and the low beam lamp panel (300) is mounted on the second light source mounting surface (220).
3. The high heat dissipation performance vehicle lamp according to claim 2, characterized in that, The first light source mounting surface (210) is set 30 to 40 mm higher than the second light source mounting surface (220).
4. The high heat dissipation performance vehicle lamp according to claim 1, characterized in that, Both the first light source mounting surface (210) and the second light source mounting surface (220) are provided with heat dissipation fins (230) on their backs.
5. The high heat dissipation performance vehicle lamp according to claim 4, characterized in that, The lamp housing (100) is provided with at least two vent holes (120), the two vent holes (120) are respectively located on the back side of the first light source mounting surface (210) and the second light source mounting surface (220), and the two vent holes (120) are arranged adjacent to the heat dissipation fins (230) group.
6. The high heat dissipation performance vehicle lamp according to claim 4, characterized in that, The heat dissipation fins (230) are arranged radially or in multiple fins spaced apart, and the thickness of each fin in the heat dissipation fin (230) group is 0.5-1.5mm.
7. The high heat dissipation performance vehicle lamp according to claim 1, characterized in that, Both the first light source mounting surface (210) and the second light source mounting surface (220) are provided with positioning posts (240) and threaded holes (250). The two lamp panels are provided with positioning holes at the positions where the positioning posts (240) are provided, and the two lamp panels are provided with through holes at the positions where the threaded holes (250) are provided.
8. The high heat dissipation performance vehicle lamp according to claim 1, characterized in that, The lamp housing (100) includes a bottom shell (130) and a lampshade (140). The lampshade (140) is detachably connected to the bottom shell (130), and the lampshade (140) and the bottom shell (130) together enclose the mounting cavity (110).
9. The high heat dissipation performance vehicle lamp according to claim 1, characterized in that, The radiator (200) is manufactured using injection molding.