High-power LED tail lamp thick-wall light distribution module heat dissipation mechanism

Abstract

The utility model belongs to the technical field of car light, especially relate to a big power LED tail light thick wall light distribution module heat abstract mechanism, including thick wall light distribution module body, the thick wall light distribution module body inside is equipped with LED installation cavity, LED installation cavity is used for containing big power LED light source, the inside of LED installation cavity is provided with light source mounting seat, light source mounting seat includes first installation department, second installation department and third installation department, first installation department, second installation department and third installation department are arranged in stair step shape, be provided with several groups of installation face of stair step type on first installation department and second installation department, first LED lamp board is fixedly installed on each installation face of first installation department and second installation department, first LED lamp board is fixedly installed through screw, first LED lamp board is fixed with first radiating assembly, the utility model effectively avoided the heat accumulation problem that big power LED light source produced because of long time work, guaranteed the stability and life of LED light source.

Description

Technical Field

[0001] This utility model belongs to the field of automotive lighting technology and relates to a heat dissipation mechanism for a thick-walled light distribution module of a high-power LED taillight. Background Technology

[0002] With the development of automotive lighting technology, high-power LEDs have gradually become the mainstream light source for automotive taillights due to their advantages such as high brightness, low energy consumption, and long lifespan. To achieve complex light distribution effects, automotive taillights often use thick-walled light distribution modules. However, the thick-walled structure has the problem of low thermal conductivity: high-power LEDs generate a lot of heat when working. If the heat cannot be dissipated in time, it will cause the LED junction temperature to rise, which will not only cause light decay but also shorten the LED's lifespan.

[0003] In the existing technology, the heat dissipation of thick-walled light distribution modules mostly relies on the natural heat dissipation of the module shell or the simple pasting of heat sinks. This results in the low thermal conductivity of the thick-walled module body, making it difficult for internal heat to be transferred to the outside, and the heat dissipation area is limited, which cannot meet the heat dissipation requirements of high-power LEDs. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a heat dissipation mechanism for a thick-walled light distribution module of a high-power LED taillight.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A heat dissipation mechanism for a thick-walled light distribution module of a high-power LED taillight includes a thick-walled light distribution module body. The thick-walled light distribution module body has an LED mounting cavity inside, which is used to accommodate a high-power LED light source. The LED mounting cavity has a light source mounting base inside, which includes a first mounting part, a second mounting part, and a third mounting part. The first, second, and third mounting parts are arranged in a stepped shape. The first and second mounting parts have several sets of stepped mounting surfaces. A first LED light board is fixedly mounted on each mounting surface of the first and second mounting parts. The first LED light board is fixedly mounted with screws, and a first heat dissipation component is fixed on the first LED light board. A second LED light board is fixedly mounted on the third mounting part with screws, and a second heat dissipation component is fixed on the second LED light board. The thick-walled light distribution module body has a group of heat conduction channels.

[0006] In the heat dissipation mechanism of the thick-walled light distribution module of the high-power LED taillight described above, the heat conduction channel group is disposed on the body of the thick-walled light distribution module, and one end of the heat conduction channel group is located above the first mounting part, the second mounting part and the third mounting part, and the other end extends to the outer wall of the body of the thick-walled light distribution module.

[0007] In the heat dissipation mechanism of the thick-walled light distribution module of the high-power LED taillight described above, the first heat dissipation component includes several sets of heat sinks, each heat sink having a U-shaped structure, and the heat sinks being fixedly installed on the back of the first LED light panel by screws.

[0008] In the heat dissipation mechanism of the thick-walled light distribution module of the high-power LED taillight mentioned above, each heat sink is arranged in a stepped manner, and a set of heat sinks is fixed on the back of each group of first LED light panels.

[0009] In the heat dissipation mechanism of the thick-walled light distribution module of the high-power LED taillight described above, the second heat dissipation component includes strip-shaped heat dissipation fins, which are fixedly installed on the back of the second LED light panel by screws.

[0010] In the heat dissipation mechanism of the thick-walled light distribution module of the high-power LED taillight described above, optical components are fixedly installed on the outer sides of the first mounting part, the second mounting part and the third mounting part by screws. The optical components are provided with a number of arc-shaped surfaces, and LED lamp bead holes are provided on the arc-shaped surfaces.

[0011] In the heat dissipation mechanism of the thick-walled light distribution module of the high-power LED taillight described above, several groups of LED beads are provided on the first LED light board and the second LED light board, and the LED beads correspond one-to-one with the LED bead holes.

[0012] In the heat dissipation mechanism of the thick-walled light distribution module of the high-power LED taillight described above, the mounting surfaces of the first mounting part, the second mounting part, and the third mounting part are provided with lamp holes corresponding to the positions of the LED beads.

[0013] In the heat dissipation mechanism of the thick-walled light distribution module of the high-power LED taillight mentioned above, the air vents of the heat conduction channel group are provided with uniformly distributed baffles.

[0014] In the heat dissipation mechanism of the thick-walled light distribution module of the high-power LED taillight described above, the body of the thick-walled light distribution module is made of thermally conductive plastic, and the inner wall of the LED mounting cavity is provided with a thermally conductive coating.

[0015] Compared with existing technologies, the advantages of this utility model are: 1. This utility model effectively increases the heat dissipation area and improves heat dissipation efficiency by setting a stepped light source mounting base inside the thick-walled light distribution module body and fixing the first heat dissipation component and the second heat dissipation component to the first LED lamp board and the second LED lamp board respectively. At the same time, the setting of the heat conduction channel group allows heat to be transferred more quickly from the LED mounting cavity to the outer wall of the thick-walled light distribution module body, further improving the heat dissipation performance.

[0016] 2. The first heat dissipation component of this invention adopts a U-shaped heat sink with each fin arranged in a stepped manner. This design not only increases the heat dissipation area but also facilitates air convection, improving the heat dissipation effect. The second heat dissipation component uses strip-shaped heat dissipation fins, further enhancing the heat dissipation capacity. In addition, this invention optimizes the airflow path, reduces thermal resistance, and improves heat dissipation efficiency by setting evenly distributed baffles at the air vents of the heat conduction channel group.

[0017] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall exploded structure of this utility model.

[0019] Figure 2 This is an exploded structural diagram from another perspective of this utility model.

[0020] Figure 3 This is a front structural diagram of the present invention.

[0021] Figure 4 This is a schematic diagram of the back structure of this utility model.

[0022] In the diagram: 1. Thick-walled light distribution module body; 2. LED mounting cavity; 3. Light source mounting base; 4. First mounting part; 5. Second mounting part; 6. Third mounting part; 7. First LED light board; 8. First heat dissipation component; 9. Second LED light board; 10. Second heat dissipation component; 11. Heat conduction channel group; 12. Heat sink; 13. Strip heat dissipation fin; 14. Optical component; 15. Curved surface; 16. LED bead hole; 17. LED bead; 18. Lamp hole. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figure 1-4As shown, a heat dissipation mechanism for a high-power LED taillight thick-walled light distribution module includes a thick-walled light distribution module body 1. The thick-walled light distribution module body 1 has an LED mounting cavity 2 inside, which is used to accommodate a high-power LED light source. A light source mounting seat 3 is provided inside the LED mounting cavity 2. The light source mounting seat 3 includes a first mounting part 4, a second mounting part 5, and a third mounting part 6, which are arranged in a stepped shape. Several sets of stepped mounting surfaces are provided on the first mounting part 4 and the second mounting part 5. A first LED light plate 7 is fixedly mounted on each mounting surface of the first mounting part 4 and the second mounting part 5. The first LED light plate 7 is fixedly mounted by screws. A first heat dissipation component 8 is fixed on the first LED light plate 7. A second LED light plate 9 is fixedly mounted on the third mounting part 6 by screws. A second heat dissipation component 10 is fixed on the second LED light plate 9. A heat conduction channel group 11 is provided on the thick-walled light distribution module body 1.

[0025] Furthermore, the heat conduction channel group 11 is disposed on the thick-walled light distribution module body 1, and one end of the heat conduction channel group 11 is located above the first mounting part 4, the second mounting part 5 and the third mounting part 6, and the other end extends to the outer wall of the thick-walled light distribution module body 1.

[0026] In this embodiment, the heat conduction channel group 11 can greatly improve heat dissipation efficiency, quickly conduct the heat generated by the first LED light board 7 and the second LED light board 9 during operation to the outer wall of the thick-walled light distribution module body 1, and then dissipate the heat through heat exchange with the external environment, effectively avoiding the problem of heat accumulation caused by long-term operation of high-power LED light source, and ensuring the stability and service life of LED light source.

[0027] Furthermore, the first heat dissipation component 8 includes several sets of heat sinks 12, each heat sink 12 having a U-shaped structure, and the heat sinks 12 are fixedly mounted on the back of the first LED light board 7 by screws.

[0028] In this embodiment, the U-shaped structure of the heat sink 12 increases the heat dissipation area, and at the same time, it uses the principle of air convection to accelerate heat dissipation. The direction of the U-shaped opening matches the airflow direction of the heat conduction channel group 11, forming a synergistic heat dissipation effect.

[0029] Furthermore, each heat sink 12 is arranged in a stepped manner, and a set of heat sinks 12 is fixed on the back of each group of first LED light boards 7.

[0030] In this embodiment, this stepped layout corresponds vertically to the stepped structure of the light source mounting base 3, ensuring that each heat-generating unit has an independent heat dissipation channel.

[0031] Furthermore, the second heat dissipation component 10 includes strip-shaped heat dissipation fins 13, which are fixedly mounted on the back of the second LED light panel 9 by screws.

[0032] In this embodiment, the strip heat dissipation fins 13 are arranged longitudinally to form a vertical cross structure with the heat conduction channel group 11, which not only ensures the compactness of the structure, but also enhances convective heat dissipation by breaking the air boundary layer.

[0033] Furthermore, optical components 14 are fixedly mounted on the outer sides of the first mounting part 4, the second mounting part 5 and the third mounting part 6 by screws. The optical components 14 are provided with a plurality of arc-shaped surfaces 15, and LED lamp bead holes 16 are provided on the arc-shaped surfaces 15.

[0034] In this embodiment, the arc-shaped surface 15 on the optical component 14 is designed to effectively distribute the light emitted by the LED beads. The emission angle and distribution range of the light can be adjusted by using arc-shaped surfaces 15 with different curvatures.

[0035] Furthermore, the first LED light board 7 and the second LED light board 9 are provided with a plurality of LED beads 17, and the LED beads 17 correspond one-to-one with the LED bead holes 16.

[0036] In this embodiment, the LED bead 17 can meet the lighting requirements of high-power LED taillights, and at the same time, its correspondence with the LED bead hole 16 ensures effective light transmission and light distribution.

[0037] Furthermore, the mounting surfaces of the first mounting part 4, the second mounting part 5, and the third mounting part 6 are provided with lamp holes 18 corresponding to the positions of the LED beads 17.

[0038] In this embodiment, the lamp hole 18 ensures that the light can be distributed more accurately through the arc surface 15, thereby improving the lighting effect and light efficiency of the entire high-power LED taillight.

[0039] Furthermore, the air vents of the heat conduction channel group 11 are provided with uniformly distributed baffles.

[0040] In this embodiment, the spoiler can enhance the heat exchange efficiency between the air and the inner wall of the heat conduction channel, thereby improving the heat dissipation performance of the entire heat dissipation mechanism, ensuring that the high-power LED taillight can maintain a stable temperature during long-term operation and extending its service life.

[0041] Furthermore, the thick-walled light distribution module body 1 is made of thermally conductive plastic, and the inner wall of the LED mounting cavity is provided with a thermally conductive coating.

[0042] In this embodiment, the combined use of thermally conductive plastic and thermally conductive coating can significantly improve the thermal conductivity of the thick-walled light distribution module body 1, enabling the heat generated by the LED beads 17 during operation to be quickly conducted away. The thermally conductive plastic is a commercially available product and is existing technology. The thermally conductive coating is formed by spraying a high-temperature resistant thermally conductive coating (model RLHY-2339) onto the inner wall of the LED mounting cavity.

[0043] The working principle of this utility model is as follows: When the high-power LED taillights start working, the LED beads 17 on the first LED light board 7 and the second LED light board 9 are powered on and emit light, generating a large amount of heat. At this time, the first heat dissipation component 8 and the second heat dissipation component 10 begin to function. The heat sink 12 in the first heat dissipation component 8 uses its U-shaped structure and stepped arrangement to accelerate the dissipation of heat generated by the first LED light board 7 through air convection. At the same time, the heat conduction channel group 11 quickly conducts heat to the outer wall of the thick-walled light distribution module body 1, and then dissipates the heat into the air through heat exchange with the external environment. The strip-shaped heat dissipation fins 13 in the second heat dissipation component 10 are arranged vertically to effectively reduce the temperature of the second LED light board 9. The entire heat dissipation mechanism, through the synergistic effect of multiple heat dissipation methods, effectively avoids the problem of heat accumulation caused by long-term operation of the high-power LED light source, ensuring the stability and lifespan of the LED light source.

[0044] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0045] Although this document frequently uses terms such as: 1. Thick-walled light distribution module body; 2. LED mounting cavity; 3. Light source mounting base; 4. First mounting part; 5. Second mounting part; 6. Third mounting part; 7. First LED lamp board; 8. First heat dissipation component; 9. Second LED lamp board; 10. Second heat dissipation component; 11. Heat conduction channel group; 12. Heat sink; 13. Strip heat dissipation fin; 14. Optical component; 15. Arc surface; 16. LED lamp bead hole; 17. LED lamp bead; 18. Lamp hole, etc., the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A heat dissipation mechanism for a thick-walled light distribution module of a high-power LED taillight, comprising a thick-walled light distribution module body (1), characterized in that, The thick-walled light distribution module body (1) is provided with an LED mounting cavity (2) inside. The LED mounting cavity (2) is used to accommodate a high-power LED light source. The LED mounting cavity (2) is provided with a light source mounting seat (3). The light source mounting seat (3) includes a first mounting part (4), a second mounting part (5) and a third mounting part (6). The first mounting part (4), the second mounting part (5) and the third mounting part (6) are arranged in a stepped shape. The first mounting part (4) and the second mounting part (5) are provided with a number of stepped mounting surfaces. A first LED lamp board (7) is fixedly mounted on each mounting surface of the first mounting part (4) and the second mounting part (5). The first LED lamp board (7) is fixedly mounted by screws. A first heat dissipation component (8) is fixed on the first LED lamp board (7). A second LED lamp board (9) is fixedly mounted on the third mounting part (6) by screws. A second heat dissipation component (10) is fixed on the second LED lamp board (9). A heat conduction channel group (11) is provided on the thick-walled light distribution module body (1).

2. The heat dissipation mechanism for the thick-walled light distribution module of the high-power LED taillight according to claim 1, characterized in that, The heat conduction channel group (11) is disposed on the body (1) of the thick-walled light distribution module, and one end of the heat conduction channel group (11) is located above the first mounting part (4), the second mounting part (5) and the third mounting part (6), and the other end extends to the outer wall of the body (1) of the thick-walled light distribution module.

3. The heat dissipation mechanism for the thick-walled light distribution module of the high-power LED taillight according to claim 2, characterized in that, The first heat dissipation component (8) includes several sets of heat sinks (12), the heat sinks (12) are U-shaped structures, and the heat sinks (12) are fixedly installed on the back of the first LED light board (7) by screws.

4. The heat dissipation mechanism for the thick-walled light distribution module of the high-power LED taillight according to claim 3, characterized in that, Each heat sink (12) is arranged in a stepped manner, and a set of heat sinks (12) is fixed on the back of each group of first LED light boards (7).

5. The heat dissipation mechanism for the thick-walled light distribution module of the high-power LED taillight according to claim 4, characterized in that, The second heat dissipation component (10) includes strip-shaped heat dissipation fins (13), which are fixedly mounted on the back of the second LED light panel (9) by screws.

6. The heat dissipation mechanism for the thick-walled light distribution module of the high-power LED taillight according to claim 5, characterized in that, Optical components (14) are fixedly mounted on the outer side of the first mounting part (4), the second mounting part (5) and the third mounting part (6) by screws. Several sets of arc surfaces (15) are provided on the optical components (14), and LED lamp bead holes (16) are provided on the arc surfaces (15).

7. The heat dissipation mechanism for the thick-walled light distribution module of the high-power LED taillight according to claim 6, characterized in that, The first LED light board (7) and the second LED light board (9) are provided with a number of LED beads (17), and the LED beads (17) correspond one-to-one with the LED bead holes (16).

8. The heat dissipation mechanism for the thick-walled light distribution module of the high-power LED taillight according to claim 7, characterized in that, The mounting surfaces of the first mounting part (4), the second mounting part (5) and the third mounting part (6) are provided with lamp holes (18) corresponding to the positions of the LED beads (17).

9. The heat dissipation mechanism for the thick-walled light distribution module of the high-power LED taillight according to claim 8, characterized in that, The heat conduction channel group (11) has uniformly distributed baffles at its air outlet.

10. The heat dissipation mechanism for the thick-walled light distribution module of the high-power LED taillight according to claim 9, characterized in that, The thick-walled light distribution module body (1) is made of thermally conductive plastic, and the inner wall of the LED mounting cavity is provided with a thermally conductive coating.

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