Automobile LED light source module

Abstract

This utility model discloses an automotive LED light source module, including a lamp source substrate on which multiple LED light source groups are disposed. A lamp housing is disposed on the lamp source substrate, and the multiple LED light source groups are disposed within the lamp housing. A heat dissipation cavity is disposed within the lamp source substrate, and the heat dissipation cavity is positionally matched to the multiple LED light source groups. An air intake pipe is disposed on the lamp source substrate, and the air intake pipe is connected to the heat dissipation cavity, allowing external cooling air to enter the heat dissipation cavity to cool the multiple LED light source groups. The beneficial effect of this utility model is that by setting a heat dissipation cavity on the lamp source substrate that precisely matches the position of the LED light source groups, combined with the air intake pipe connected to the heat dissipation cavity, a directional airflow channel can be constructed. External cooling air can be directionally introduced into the heat dissipation cavity through the air intake pipe and directly act on the heat-generating LED light source group area, achieving active and targeted cooling of the LED light source groups.

Description

Technical Field

[0001] This utility model relates to an automotive LED light source module. Background Technology

[0002] With the continuous upgrading of automotive lighting technology, LEDs, with their significant advantages such as low energy consumption, high luminous efficiency, long lifespan, and good color rendering, have gradually replaced traditional halogen lamps and xenon lamps, becoming the core light-emitting element in automotive headlights, taillights, turn signals, and other light source modules. However, LEDs generate a large amount of heat during operation, and their core operating temperature directly determines their luminous performance and lifespan. If the heat cannot be dissipated in a timely and efficient manner, it will not only lead to significant light decay (brightness reduction) and color temperature drift (lighting color deviation) in the LED chip, but also cause problems such as burnout of core LED components and accelerated aging of circuits in a long-term high-temperature environment, seriously reducing the working stability of automotive LED light source modules and even affecting driving lighting safety. This has become a core pain point restricting the performance improvement of automotive LED light source modules. In view of this, this utility model proposes an automotive LED light source module to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide an automotive LED light source module to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An automotive LED light source module includes a lamp source substrate on which multiple sets of LED light source groups are disposed;

[0006] A lamp housing is provided on the lamp source substrate, and multiple sets of LED light source groups are arranged in the lamp housing. A heat dissipation cavity is provided inside the lamp source substrate, and the heat dissipation cavity is matched with the multiple sets of LED light source groups. An air intake pipe is provided on the lamp source substrate, and the air intake pipe is connected to the heat dissipation cavity, so that external cooling air enters the heat dissipation cavity to cool down the multiple sets of LED light source groups.

[0007] As an improvement to the above technical solution, multiple sets of air outlet slots are formed on the lamp source substrate, and the multiple sets of air outlet slots are arranged on the side end of the lamp source substrate, and the air outlet slots are connected to the heat dissipation cavity.

[0008] As an improvement to the above technical solution, the air intake pipe is provided with a connecting outer wall, and a protective sleeve is provided on the connecting outer wall, the protective sleeve being fitted onto the connecting outer wall.

[0009] As an improvement to the above technical solution, the protective sleeve is provided with an air intake cone sleeve, and the air intake cone sleeve and the protective sleeve are integrally formed.

[0010] As an improvement to the above technical solution, a barrier mesh plate is provided inside the protective sleeve, and the barrier mesh plate is fixedly connected to the protective sleeve.

[0011] As an improvement to the above technical solution, a transparent protective cover is provided on the lamp housing, and multiple sets of LED light source groups are arranged in the transparent protective cover;

[0012] The intake cone sleeve and the transparent protective cover are integrally formed. The transparent protective cover is connected to the lamp housing, so that the protective sleeve is fitted onto the connecting outer wall.

[0013] As an improvement to the above technical solution, the heat dissipation cavity is provided with multiple sets of baffles, and the baffles are fixedly connected to the inner wall of the heat dissipation cavity.

[0014] As an improvement to the above technical solution, the heat dissipation cavity is provided with a first arc-shaped inner wall and a second arc-shaped inner wall, wherein the height of the first arc-shaped inner wall is lower than the height of the second arc-shaped inner wall;

[0015] The air intake pipe is located near the inner wall of the first arc shape.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] By setting a heat dissipation cavity on the lamp source substrate that precisely matches the position of the LED light source assembly, and combining it with an air intake pipe connected to the heat dissipation cavity, a directional airflow channel can be constructed. External cooling air can be directionally introduced into the heat dissipation cavity through the air intake pipe and directly act on the heat-generating LED light source assembly area, achieving active and targeted cooling of the LED light source assembly. This structure can efficiently remove the heat generated by the LED light source assembly during operation, effectively control the operating temperature of the LED light source assembly, and avoid LED chip light decay, color temperature drift, performance degradation, or core component burnout caused by high temperature. This ensures the stability of the module under long-term high-load operation and maintains good lighting performance. Attached Figure Description

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

[0019] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a schematic diagram showing the positions of the light source substrate and the air inlet pipe of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the protective sleeve of this utility model;

[0022] Figure 5 This utility model Figure 1 Front view;

[0023] Figure 6 This utility model Figure 5 Side view;

[0024] Figure 7 This utility model Figure 6 A cross-sectional view of BB.

[0025] In the diagram: 10, lamp source substrate; 11, air outlet groove; 12, heat dissipation cavity; 13, baffle plate; 14, first arc-shaped inner wall; 15, second arc-shaped inner wall; 20, lamp housing; 30, LED light source assembly; 40, air intake pipe; 41, connecting outer wall; 50, protective sleeve; 51, barrier mesh plate; 60, air intake conical sleeve. Detailed Implementation

[0026] 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 protection scope of the present utility model.

[0027] Example:

[0028] like Figure 1-7 As shown, this embodiment proposes an automotive LED light source module, including a lamp source substrate 10, on which multiple sets of LED light source groups 30 are disposed;

[0029] A lamp housing 20 is provided on the lamp source substrate 10, and multiple sets of LED light source groups 30 are disposed in the lamp housing 20. A heat dissipation cavity 12 is provided inside the lamp source substrate 10. The heat dissipation cavity 12 is matched with the multiple sets of LED light source groups 30. An air intake pipe 40 is provided on the lamp source substrate 10. The air intake pipe 40 is connected to the heat dissipation cavity 12, so that external cooling air enters the heat dissipation cavity 12 to cool down the multiple sets of LED light source groups 30.

[0030] In this embodiment, during use, first confirm the integrity of all core components of the module, including the lamp source substrate 10, multiple LED light source groups 30, lamp housing 20, and air intake pipe 40, ensuring they are undamaged, undeformed, or malfunctioning. Then, precisely fix the multiple LED light source groups 30 to their designated mounting positions on the lamp source substrate 10, ensuring a tight fit between the LED light source groups 30 and the lamp source substrate 10, and that the wiring interfaces are properly reserved, preparing for subsequent circuit connections. Also, confirm that the heat dissipation cavity 12 within the lamp source substrate 10 is pre-positioned and precisely matches the position of the LED light source groups 30. Next, the lamp base plate 10 with the LED light source group 30 installed is initially fixed to prevent displacement during subsequent operations. Then, the lamp housing 20 is snapped onto the lamp base plate 10, so that the multiple LED light source groups 30 are completely placed inside the lamp housing 20. The connection between the lamp housing 20 and the lamp base plate 10 is sealed, such as by adding sealing strips, to prevent rainwater and dust from entering. According to the design specifications of the car lights, the corresponding installation area of ​​the car lights is found, and the dust and debris of the installation position are cleaned to ensure that the installation surface is flat. At the same time, it is confirmed that the position can meet the requirement of the air intake pipe 40 to smoothly introduce external air.

[0031] By setting a heat dissipation cavity 12 on the lamp source substrate 10 that precisely matches the position of the LED light source assembly 30, and combining it with an air intake pipe 40 connected to the heat dissipation cavity 12, a directional airflow channel can be constructed. External cooling air can be directionally introduced into the heat dissipation cavity 12 through the air intake pipe 40 and directly act on the heat-generating area of ​​the LED light source assembly 30, thereby achieving active and targeted cooling of the LED light source assembly 30. This structure can efficiently remove the heat generated by the LED light source assembly 30 during operation, effectively control the operating temperature of the LED light source assembly 30, and avoid LED chip light decay, color temperature drift, performance degradation, or core component burnout caused by high temperature. This ensures the stability of the module under long-term high-load operation and maintains good lighting performance.

[0032] Specifically, the lamp source substrate 10 has multiple sets of air outlet slots 11, which are disposed on the side of the lamp source substrate 10 and are connected to the heat dissipation cavity 12.

[0033] In this embodiment, multiple sets of air outlet slots 11 are opened on the side of the lamp source substrate 10 and communicate with the heat dissipation cavity 12. They can form a complete directional airflow channel with the air inlet pipe 40 for the introduction of external cooling air and the heat exchange of heat in the heat dissipation cavity 12 for the discharge of hot air. This avoids the cooling air from stagnating in the heat dissipation cavity 12 and ensures that the cooling air entering the heat dissipation cavity 12 can be discharged to the outside of the module in a timely manner after absorbing the working heat of the LED light source lamp group 30. This maintains the continuity and efficiency of the heat dissipation process and effectively avoids the heat dissipation capacity of the heat dissipation cavity 12 from being reduced due to the accumulation of hot air.

[0034] Specifically, the air intake pipe 40 is provided with a connecting outer wall 41, and a protective sleeve 50 is provided on the connecting outer wall 41, and the protective sleeve 50 is fitted onto the connecting outer wall 41.

[0035] In this embodiment, by covering the outer wall 41 of the intake pipe 40 with a protective sleeve 50, the outer wall 41 of the intake pipe 40 can be effectively physically isolated from the complex external environment, such as mud, rainwater, and external collisions during vehicle operation.

[0036] Of course, the protective sleeve 50 and the connecting outer wall 41 are fixedly connected by glue.

[0037] Specifically, the protective sleeve 50 is provided with an air intake cone sleeve 60, and the air intake cone sleeve 60 and the protective sleeve 50 are integrally formed.

[0038] Specifically, a barrier mesh plate 51 is provided inside the protective sleeve 50, and the barrier mesh plate 51 is fixedly connected to the protective sleeve 50.

[0039] In this embodiment, the splicing gap between the intake conical sleeve 60 and the protective sleeve 50 is eliminated by the one-piece molding structure, avoiding cooling air leakage caused by assembly gaps and ensuring long-term stable operation of the intake system; moreover, the conical structure of the intake conical sleeve 60 can expand the effective collection area of ​​the air inlet, enhance the ability to gather external cooling air, increase the intake volume per unit time, and deliver sufficient cooling airflow to the heat dissipation cavity 12 to meet the airflow requirements for efficient cooling of the LED light source assembly 30.

[0040] The barrier mesh 51 can effectively intercept dust, particles, lint and other impurities in the outside air, preventing them from entering the intake pipe 40 and heat dissipation cavity 12 with the cooling air, and avoiding the accumulation of impurities that block the air passage of the heat dissipation cavity 12 and affect the heat dissipation efficiency.

[0041] Specifically, a transparent protective cover is provided on the lamp housing 20, and multiple sets of LED light source groups 30 are arranged in the transparent protective cover;

[0042] The intake cone sleeve 60 and the transparent protective cover are integrally formed. The transparent protective cover is connected to the lamp housing 20, so that the protective sleeve 50 is fitted onto the connecting outer wall 41.

[0043] In this embodiment, the transparent protective cover covers the opening of the lamp housing 20 and completely encloses the multiple LED light source groups 30, which can effectively prevent foreign objects such as rainwater, sand, gravel, and fluff from entering the lamp group area during the car's operation, and avoid the lamp beads from being broken or the circuit damaged by foreign objects adhering to the surface of the LED light source group 30 and impacting the lamp group.

[0044] The one-piece molding structure eliminates the assembly gap between the intake cone sleeve 60 and the transparent protective cover. On the one hand, it can prevent the cooling air from leaking at the connection between the intake cone sleeve 60 and the transparent protective cover, ensuring that all external cooling air can be guided into the intake pipe 40 along the intake cone sleeve 60 without airflow loss, thus ensuring the cooling airflow supply of the heat dissipation cavity 12. On the other hand, it can prevent rainwater and sand from entering the transparent protective cover from the splicing gap, further enhancing the dustproof and waterproof performance of the module and reducing the risk of failure caused by impurities.

[0045] Specifically, the heat dissipation cavity 12 is provided with multiple sets of baffles 13, and the baffles 13 are fixedly connected to the inner wall of the heat dissipation cavity 12.

[0046] In this embodiment, multiple sets of baffles 13 are fixedly connected to the inner wall of the heat dissipation cavity 12, which can construct a flow-around airflow channel in the cavity. This forces the external cooling air to enter the cavity and flow through multiple turns along the baffles 13, significantly extending the residence time and flow path of the airflow in the heat dissipation cavity 12. This makes the heat exchange more complete and can more efficiently absorb and remove the heat generated by the LED light source group 30 during operation, effectively reducing the core temperature of the light group and avoiding LED chip light decay, color temperature drift or performance degradation caused by high temperature, thus ensuring the heat dissipation reliability of the module under long-term high load.

[0047] Specifically, the heat dissipation cavity 12 is provided with a first arc-shaped inner wall 14 and a second arc-shaped inner wall 15, wherein the height of the first arc-shaped inner wall 14 is lower than the height of the second arc-shaped inner wall 15;

[0048] The air intake pipe 40 is located near the first arc-shaped inner wall 14.

[0049] In this embodiment, since the height of the first arc-shaped inner wall 14 is lower than the height of the second arc-shaped inner wall 15, when there is residual water in the heat dissipation cavity 12, the residual water can be placed in the first arc-shaped inner wall 14 and discharged from the air intake pipe 40. The remaining residual water that has not been completely discharged can be evaporated by the high temperature of the external environment and discharged from the air intake pipe 40 and the air outlet groove 11, such as under the sun. Of course, the baffle 13 can prevent the residual water from shifting to the second arc-shaped inner wall 15 so that the residual water can be discharged quickly.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automotive LED light source module, characterized by: Includes a lamp source substrate (10), on which multiple sets of LED light source groups (30) are provided; A lamp housing (20) is provided on the lamp source substrate (10), and multiple sets of LED light source groups (30) are arranged in the lamp housing (20). A heat dissipation cavity (12) is provided inside the lamp source substrate (10). The heat dissipation cavity (12) is matched with the multiple sets of LED light source groups (30) in position. An air inlet pipe (40) is provided on the lamp source substrate (10). The air inlet pipe (40) is connected to the heat dissipation cavity (12), so that external cooling air enters the heat dissipation cavity (12) to cool down the multiple sets of LED light source groups (30).

2. The automobile LED light source module according to claim 1, characterized in that: Multiple sets of air outlet slots (11) are provided on the lamp source substrate (10). The multiple sets of air outlet slots (11) are provided on the side end of the lamp source substrate (10). The air outlet slots (11) are connected to the heat dissipation cavity (12).

3. The LED light source module for an automobile according to claim 1, wherein: The air intake pipe (40) is provided with a connecting outer wall (41), and a protective sleeve (50) is provided on the connecting outer wall (41). The protective sleeve (50) is fitted onto the connecting outer wall (41).

4. The LED light source module for an automobile according to claim 3, wherein: The protective sleeve (50) is provided with an air intake cone sleeve (60), and the air intake cone sleeve (60) and the protective sleeve (50) are integrally formed.

5. The automotive LED light source module according to claim 4, characterized in that: The protective sleeve (50) is provided with a barrier mesh plate (51), and the barrier mesh plate (51) is fixedly connected to the protective sleeve (50).

6. The LED light source module for an automobile according to claim 5, wherein: A transparent protective cover is provided on the lamp housing (20), and multiple sets of LED light source groups (30) are arranged in the transparent protective cover; The intake cone sleeve (60) and the transparent protective cover are integrally formed. The transparent protective cover is connected to the lamp housing (20), so that the protective sleeve (50) is fitted on the connecting outer wall (41).

7. The LED light source module for an automobile according to claim 1, wherein: The heat dissipation cavity (12) is provided with multiple sets of baffles (13), and the baffles (13) are fixedly connected to the inner wall of the heat dissipation cavity (12).

8. The LED light source module for an automobile according to claim 1, wherein: The heat dissipation cavity (12) is provided with a first arc-shaped inner wall (14) and a second arc-shaped inner wall (15), wherein the height of the first arc-shaped inner wall (14) is lower than the height of the second arc-shaped inner wall (15); The air intake pipe (40) is located near the first arc-shaped inner wall (14).

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