Automobile lamp and automobile

By integrating the heat dissipation structure with the heat conduction structure, the heat dissipation problem of digital micromirror headlights is solved, achieving efficient heat dissipation and improved stability, while reducing the size and cost of the headlights.

CN223795109UActive Publication Date: 2026-01-13SHENZHEN BAIBOHE TECH CO LTD
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Patent Information

Application Number
CN202520127141.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-01-13
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

The existing heat dissipation structure of digital micromirror automotive lights requires two sets of heat dissipation components to dissipate heat from the digital micromirror device and the light source, which are located opposite each other, resulting in large size and high cost of the automotive lights.

Method used

An integrated heat dissipation structure is directly connected to the reflector, and the light source is connected to the heat dissipation structure through a heat-conducting structure to achieve heat conduction between the light source and the heat dissipation structure. Combined with a wind-cooling mechanism, the heat dissipation efficiency is improved.

Benefits of technology

It achieves efficient heat dissipation, reduces the overall size and cost of the headlights, and improves the stability and lifespan of the light source.

✦ Generated by Eureka AI based on patent content.

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Abstract

The automobile lamp comprises a shell, a light source, a reflecting part, a heat dissipation structure and a heat conduction structure, a cavity is formed in the shell, and a light outlet and an installation opening are formed in the cavity wall of the cavity; the light source is installed on the shell, and the light emitting direction of the light source faces the cavity. The reflecting piece is mounted in the cavity and is used for reflecting light rays of the light source out of the light outlet; the heat dissipation structure is mounted at the mounting opening and is connected with the reflecting piece; one end of the heat conduction structure is connected with the light source, and the other end is connected with the heat dissipation structure. The light source with low heating efficiency is connected with the heat dissipation structure through the heat conduction structure, heat conduction between the light source and the heat dissipation structure is achieved, the design has small influence on the overall size of the automobile lamp, heat emitted by the light source can be conducted to the heat dissipation structure through the heat conduction structure, and therefore efficient heat dissipation is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a vehicle lamp and an automobile. Background Technology

[0002] Some existing automobiles use digital micromirror headlights, which are high-resolution lighting systems that utilize digital light processing technology. A digital micromirror headlight is a digital micromirror device; when a light source illuminates a digital micromirror device, the device reflects light to create different luminous effects.

[0003] Digital micromirror headlights need to dissipate a lot of heat when they are working, which requires efficient heat dissipation components to achieve thermal balance. In existing digital micromirror headlights, two heat dissipation components are used to dissipate heat from the digital micromirror device and the light source, which makes the headlights larger, requires more space for installation in the car, and is more expensive. Utility Model Content

[0004] The main purpose of this invention is to provide a vehicle light and automobile, which aims to dissipate heat from the light source and digital micromirror device through a heat dissipation structure.

[0005] To achieve the above objectives, this utility model proposes a vehicle light, comprising:

[0006] The housing has a cavity inside, and the cavity wall has a light outlet and an installation port;

[0007] A light source is installed in the housing, and the light emission direction of the light source is towards the cavity;

[0008] A reflector is installed inside the cavity to reflect the light from the light source out of the light outlet;

[0009] A heat dissipation structure, wherein the heat dissipation structure is mounted at the mounting port and connected to the reflector; and,

[0010] A heat-conducting structure, one end of which is connected to the light source and the other end of which is connected to the heat dissipation structure.

[0011] In some embodiments of this utility model, the vehicle light further includes a wind-cooling mechanism, which is connected to the heat dissipation structure.

[0012] In some embodiments of this utility model, the periphery of the mounting port of the housing is provided as a first flange, the heat dissipation structure includes a second flange, a connecting part and heat dissipation fins, the connecting part is connected to the side of the second flange facing the cavity, the second flange is connected to the first flange, and the heat dissipation fins are connected to the side of the second flange away from the housing.

[0013] The air-cooling mechanism is connected to the heat dissipation fins.

[0014] In some embodiments of this utility model, the light source includes a lamp panel and a first lens assembly, wherein the first lens assembly is connected to the lamp panel;

[0015] The cavity wall has a light inlet, the lens assembly is fitted with the light inlet, the lamp plate is located outside the housing and is connected to the heat-conducting structure.

[0016] In some embodiments of this utility model, the heat-conducting structure includes a heat-conducting plate and a heat-conducting pipe. The heat-conducting plate is attached to the side of the lamp plate facing away from the housing. One end of the heat-conducting pipe is connected to the heat-conducting plate, and the other end is connected to the heat dissipation structure with its port facing the air-cooling mechanism.

[0017] In some embodiments of this utility model, the cavity wall is provided with a clearance hole, and the heat conduction pipe passes through the clearance hole into the cavity and is connected to the heat dissipation structure.

[0018] In some embodiments of this utility model, at least two heat pipes are provided, and at least two heat pipes are arranged at intervals at one end connected to the heat dissipation structure.

[0019] In some embodiments of this utility model, the vehicle light further includes a sealing sleeve, which is fitted outside the heat dissipation structure, and the air-cooling mechanism is connected to the side of the heat dissipation structure away from the housing.

[0020] In some embodiments of this utility model, a second lens assembly is also included, which is mounted on the light outlet.

[0021] In some embodiments of this utility model, the reflector is a micromirror array structure.

[0022] This utility model also proposes an automobile, including a vehicle body and the aforementioned vehicle lights.

[0023] The technical solution of this utility model adopts a heat dissipation structure that is directly connected to a reflector with high heat dissipation efficiency, and connects a light source with low heat dissipation efficiency to the heat dissipation structure through a heat conduction structure, thereby realizing heat conduction between the light source and the heat dissipation structure. This design has little impact on the overall size of the vehicle lamp, and the heat emitted by the light source can be conducted to the heat dissipation structure through the heat conduction structure, thereby achieving efficient heat dissipation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the structure of an embodiment of the vehicle lamp provided by this utility model;

[0026] Figure 2 A cross-sectional view of an embodiment of the vehicle lamp provided by this utility model.

[0027] Explanation of icon numbers:

[0028] 1. Headlight; 11. Housing; 111. Cavity; 1111. Light outlet; 1112. Mounting port; 1113. Light inlet; 112. First flange; 12. Light source; 121. Lamp panel; 1211. First lens assembly; 122. Second lens assembly; 13. Reflector; 14. Heat dissipation structure; 142. Second flange; 143. Connecting part; 144. Heat dissipation fins; 145. Heat conduction structure; 1451. Heat conduction plate; 1452. Heat conduction pipe; 1453. Clearance hole; 15. Air cooling mechanism; 151. Sealing sleeve.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions 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. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] Please see Figure 1 and Figure 2 This utility model proposes a vehicle lamp 1, including a housing 11, a light source 12, a reflector 13, a heat dissipation structure 14, and a heat conduction structure 145. The housing 11 has a cavity 111 inside, and the cavity wall of the cavity 111 has a light outlet 1111 and a mounting port 1112. The light source 12 is mounted on the housing 11, and the light emission direction of the light source 12 is facing the cavity 111. The reflector 13 is mounted in the cavity 111 and is used to reflect the light from the light source 12 out of the light outlet 1111. The heat dissipation structure 14 is mounted in the mounting port 1112 and connected to the reflector 13. One end of the heat conduction structure 145 is connected to the light source 12, and the other end is connected to the heat dissipation structure 14.

[0034] The technical solution of this utility model adopts a heat dissipation structure 14 directly connected to a reflector 13 with high heat dissipation efficiency, and connects a light source 12 with low heat dissipation efficiency to the heat dissipation structure 14 through a heat conduction structure 145, so as to realize heat conduction between the light source 12 and the heat dissipation structure 14. This design has little impact on the overall size of the vehicle lamp 1, and the heat emitted by the light source 12 can be conducted to the heat dissipation structure 14 through the heat conduction structure 145, thereby achieving efficient heat dissipation.

[0035] The aforementioned housing 11 is generally made of metal, but plastic can also be used. The light source 12 is typically an LED lamp, and the reflector 13 employs a more advanced micromirror array structure. This micromirror array structure allows for precise control of each micromirror, achieving high-resolution beam control. This control capability enables the vehicle headlight 1 to dynamically adjust the shape and direction of the beam according to road conditions and the surrounding environment, improving the accuracy and safety of illumination.

[0036] Furthermore, in some embodiments of this invention, the vehicle headlight 1 further includes a cooling mechanism 15, which is connected to the heat dissipation structure 14. This can further improve the heat dissipation performance of the vehicle headlight 1.

[0037] In some embodiments of this utility model, the periphery of the mounting port 1112 of the housing 11 is provided as a first flange 112, and the heat dissipation structure 14 includes a second flange 142, a connecting part 143, and heat dissipation fins 144; the connecting part 143 is connected to the side of the second flange 142 facing the cavity 111, the second flange 142 is connected to the first flange 112, and the heat dissipation fins 144 are connected to the side of the second flange 142 away from the housing 11; the air-cooling mechanism 15 is connected to the heat dissipation fins 144. Through the connection of the first flange 112 and the second flange 142, a stable combination of the housing 11 and the heat dissipation structure 14 is achieved, and the arrangement of the heat dissipation fins 144 can increase the heat dissipation area, thereby improving the heat dissipation rate.

[0038] In some embodiments of this utility model, the light source 12 includes a lamp panel 121 and a first lens assembly 1211, the first lens assembly 1211 being connected to the lamp panel 121; the cavity wall of the cavity 111 has a light inlet 1113, the lens assembly cooperating with the light inlet 1113, the lamp panel 121 being located outside the housing 11 and connected to the heat-conducting structure 145. Since the light source 12 is directly connected to the heat-conducting structure 145, this design can reduce heat loss during heat conduction. The heat generated by the light source 12 can be effectively conducted to the heat dissipation structure 14 through the heat-conducting structure 145, thereby improving the overall heat dissipation efficiency of the vehicle lamp 1. The cooperation between the first lens assembly 1211 and the light inlet 1113 facilitates positioning and assembly.

[0039] In some embodiments of this invention, the heat-conducting structure 145 is a heat-conducting sheet. In other embodiments, the heat-conducting structure 145 includes a heat-conducting plate 1451 and a heat-conducting pipe 1452. The heat-conducting plate 1451 is attached to the side of the lamp plate 121 facing away from the housing 11. One end of the heat-conducting pipe 1452 is connected to the heat-conducting plate 1451, and the other end is connected to the heat dissipation structure 14 with its port facing the air-cooling mechanism 15. The heat-conducting plate 1451, attached to the side of the lamp plate 121 facing away from the housing 11, can quickly conduct the heat generated by the light source 12 away. One end of the heat-conducting pipe 1452 is connected to the heat-conducting plate 1451, and the other end is connected to the heat dissipation structure 14, forming an efficient heat conduction path, which helps to quickly transfer heat from the light source 12 to the heat dissipation structure 14. The port of the heat-conducting pipe 1452 faces the air-cooling mechanism 15, so that the air-cooling mechanism 15 can drive airflow within the heat-conducting pipe 1452, further improving heat dissipation efficiency.

[0040] To improve structural compactness, in some embodiments of this invention, the cavity wall of the cavity 111 is provided with a clearance hole 1453, through which the heat conduction pipe 1452 passes into the cavity 111 and connects to the heat dissipation structure 14. By designing the clearance hole 1453, the heat conduction distance of the heat conduction pipe 1452 can be reduced, making the entire heat dissipation structure 14 more compact and helping to reduce the size and weight of the vehicle lamp 1.

[0041] In some embodiments of this invention, at least two heat pipes 1452 are provided, with at least two heat pipes 1452 arranged at intervals at one end connected to the heat dissipation structure 14. Multiple heat pipes 1452 can increase the total heat conduction area, thereby improving the heat transfer efficiency from the light source 12 to the heat dissipation structure 14. This allows for faster heat transfer from the light source 12 to the heat dissipation structure 14, reducing the operating temperature of the light source 12 and improving stability and lifespan. The heat pipes 1452 are generally made of copper, which offers good structural stability and high thermal conductivity.

[0042] In some embodiments of this utility model, the vehicle lamp 1 further includes a sealing sleeve 151, which is fitted over the heat dissipation structure 14. The air-cooling mechanism 15 is connected to the side of the heat dissipation structure 14 away from the housing 11. When the vehicle lamp 1 is mounted on the vehicle body, the sealing sleeve 151 divides the main body of the lamp into two cavities. The front part of the main body of the lamp is installed in a sealed cavity, which can prevent water and dust, while the heat dissipation part of the rear part of the lamp is placed in an open environment to facilitate ventilation and heat dissipation and prevent heat accumulation and temperature rise. The corrugated pleats on the sealing sleeve 151 allow for greater deformation, so that the lamp can still maintain a sealed state after the position (fore-and-aft, pitch) is adjusted. The sealing sleeve 151 can provide additional support and protection for the heat dissipation structure 14, which helps to improve the stability and reliability of the entire heat dissipation system. The sealing sleeve 151 can absorb minor deformations caused by thermal expansion or other mechanical stresses, thereby protecting the heat dissipation structure 14 from damage.

[0043] In some embodiments of this invention, a second lens assembly 122 is also included, which is mounted on the light outlet 1111. The second lens assembly 122 enables control of light distribution, reduces light spots and dark areas, and provides a more uniform lighting effect, which is of great significance for improving the safety of nighttime driving.

[0044] This utility model also proposes an automobile, including a vehicle body and the aforementioned headlight 1. Since this automobile includes all the technical solutions described in all the above embodiments, it possesses at least the beneficial effects brought about by all the above solutions, which will not be elaborated upon here.

[0045] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A vehicle light (1), characterized in that, include: The housing (11) has a cavity (111) inside, and the cavity wall of the cavity (111) has a light outlet (1111) and a mounting port (1112); A light source (12) is installed in the housing (11), and the light emission direction of the light source (12) is towards the cavity (111); A reflector (13) is installed in the cavity (111) to reflect the light from the light source (12) out of the light outlet (1111); A heat dissipation structure (14), said heat dissipation structure (14) is installed in the mounting port (1112) and connected to the reflector (13); and, A heat-conducting structure (145) is provided, with one end of the heat-conducting structure (145) connected to the light source (12) and the other end connected to the heat dissipation structure (14).

2. The vehicle headlight (1) as described in claim 1, characterized in that, The vehicle headlight (1) also includes a cooling mechanism (15), which is connected to the heat dissipation structure (14).

3. The vehicle headlight (1) as described in claim 2, characterized in that, The periphery of the mounting port (1112) of the housing (11) is configured as a first flange (112). The heat dissipation structure (14) includes a second flange (142), a connecting part (143), and heat dissipation fins (144). The connecting part (143) is connected to the side of the second flange (142) facing the cavity (111). The second flange (142) is connected to the first flange (112). The heat dissipation fins (144) are connected to the side of the second flange (142) away from the housing (11). The air-cooling mechanism (15) is connected to the heat dissipation fins (144).

4. The vehicle headlight (1) as described in claim 2, characterized in that, The light source (12) includes a lamp panel (121) and a first lens assembly (1211), the first lens assembly (1211) being connected to the lamp panel (121); The cavity (111) has a light inlet (1113) on its cavity wall. The lens assembly is fitted with the light inlet (1113). The lamp plate (121) is located outside the housing (11) and is connected to the heat-conducting structure (145).

5. The vehicle headlight (1) as described in claim 4, characterized in that, The heat-conducting structure (145) includes a heat-conducting plate (1451) and a heat-conducting pipe (1452). The heat-conducting plate (1451) is attached to the side of the lamp plate (121) facing away from the housing (11). One end of the heat-conducting pipe (1452) is connected to the heat-conducting plate (1451), and the other end is connected to the heat dissipation structure (14) with its port facing the air-cooling mechanism.

6. The vehicle headlight (1) as described in claim 5, characterized in that, The cavity (111) has a clearance hole (1453) in its cavity wall. The heat pipe (1452) passes through the clearance hole (1453) into the cavity (111) and is connected to the heat dissipation structure (14).

7. The vehicle headlight (1) as described in claim 5, characterized in that, At least two heat pipes (1452) are provided, and at least two heat pipes (1452) are arranged at intervals at one end connected to the heat dissipation structure (14).

8. The vehicle headlight (1) as described in claim 2, characterized in that, The vehicle headlight (1) also includes a sealing sleeve (151), which is fitted outside the heat dissipation structure (14), and the air cooling mechanism (15) is connected to the side of the heat dissipation structure (14) away from the housing (11).

9. The vehicle lamp (1) as described in any one of claims 1 to 8, characterized in that, It also includes a second lens assembly (122) mounted at the light outlet (1111); and / or, The reflector (13) is a micromirror array structure.

10. A car, characterized in that, Includes the vehicle body and the vehicle lights (1) as described in any one of claims 1 to 9.