An LED vehicle light

Abstract

The application discloses an LED automobile lamp, which comprises a split lamp shell, an LED lamp plate, a self-rotating fan and an interface module. The lamp shell is composed of left-right symmetrical shells, and a double-sided LED lamp plate is arranged in the lamp shell. Rectangular LED lamp beads are uniformly distributed on both sides of the lamp plate, so that double-sided light emission is realized. An innovative heat dissipation system is arranged between the lamp beads and the interface, and a self-rotating fan is arranged in the heat dissipation cavity. The self-rotating fan is matched with the heat dissipation holes of the shells to form forced convection. The LED lamp plate is integrated with a control chip and a power management chip, and the interface module is designed in a single-pin plug standardization mode. Electrical connection is realized through a U-shaped electrode part, and the overall structure is compact. The design effectively improves the heat dissipation efficiency, ensures stable light efficiency, prolongs the service life and is suitable for various automobile lighting systems.

Description

Technical Field

[0001] This application relates to the field of LED lighting technology, specifically to an LED automotive light. Background Technology

[0002] As the mainstream lighting solution for modern vehicles, the performance and lifespan of automotive LED lights are highly dependent on heat dissipation efficiency. Currently, many LED automotive lights have inherent design flaws resulting in insufficient heat dissipation. Due to the compact space within the engine compartment, the size of the lights is strictly limited, making it difficult to design heat dissipation structures. Common passive heat sink solutions have insufficient heat dissipation area within the limited space, making it difficult to quickly dissipate the heat generated by the chip; while using traditional external fans would further increase the size of the lamp body, contradicting the trend of miniaturization in automotive lights. Poor heat dissipation efficiency directly leads to increased junction temperature of the LED chip, causing accelerated light decay, color temperature drift, and even premature failure, seriously affecting driving safety and the lifespan of the lamps. Utility Model Content

[0003] To address the poor heat dissipation performance of existing LED automotive lights, this application provides an LED automotive light. The specific technical solution of this application is as follows:

[0004] An LED automotive light includes: a lamp housing, an LED lamp board, a self-rotating fan, and an interface module. The lamp housing includes a left housing and a right housing. The LED lamp board is disposed between the left and right housings. Lamp holes are respectively provided on the left and right housings. LED beads are provided on both sides of the LED lamp board and are located in the lamp holes. The interface module is disposed at one end of the lamp housing and is electrically connected to the LED lamp board. A heat dissipation cavity is provided between the left and right housings. The heat dissipation cavity is located between the LED beads and the interface module. The self-rotating fan is disposed in the heat dissipation cavity. Heat dissipation holes for airflow into and out of the heat dissipation cavity are provided on the left and right housings.

[0005] Furthermore, a control chip is provided on the side of the LED light panel facing the right shell, and a through hole for placing the control chip is provided on the right shell.

[0006] Furthermore, a power chip is provided on the side of the LED light panel facing the left shell, and a receiving slot for placing the power chip is provided on the left shell.

[0007] Furthermore, the LED light panel, left shell, and right shell are provided with screw holes.

[0008] Furthermore, the LED beads are rectangular, and the lamp holes are also rectangular.

[0009] Furthermore, the two ends of the left and right shells have the same structure.

[0010] Furthermore, the interface module includes a power board and pin units electrically connected to the power board, with the power board located between the self-rotating fan and the pin units.

[0011] Furthermore, the pin unit is a single-pin connector.

[0012] Furthermore, one end of the LED light panel is provided with a U-shaped part, which is fitted onto the self-rotating fan. The end of the U-shaped part is provided with an electrode part for electrical connection, and the power board is provided with a groove for accommodating the electrode part.

[0013] This invention effectively solves the heat dissipation bottleneck of LED automotive lights through an innovative, compact, active heat dissipation design, achieving the following significant technical effects:

[0014] Highly efficient active cooling ensures lamp performance and lifespan: A dedicated heat dissipation chamber is designed inside the lamp housing, integrating a self-rotating fan to create a highly efficient active cooling system. When the fan operates, it generates forced airflow within the sealed chamber, rapidly carrying away the heat generated by the LED panel and exchanging heat with the outside through ventilation holes. This design significantly improves heat dissipation efficiency, ensuring the LED chips operate at optimal temperatures, effectively delaying light decay, stabilizing light output quality, and significantly extending the lamp's lifespan.

[0015] Highly integrated structure enables miniaturized design: Utilizing a miniature self-rotating cooling fan as the core heat dissipation component, this fan integrates the blades and motor into a single, extremely compact structure. This highly integrated design avoids the space-consuming problems of traditional cooling solutions, effectively reducing the overall size of the automotive light and making it more suitable for the demanding installation space requirements of modern automobiles.

[0016] Optimized cooling ducts for high reliability: The combination of cooling holes on the left and right shells and the internal cooling cavity creates an effective air convection channel. The integrated fan structure reduces mechanical connection points, resulting in smoother operation and higher reliability, making it ideal for long-term vibration conditions in automotive environments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an LED automotive lamp in one embodiment of this application;

[0018] Figure 2 This is a front view of an LED automotive lamp in one embodiment of this application;

[0019] Figure 3 This is an exploded view of an LED automotive lamp in one embodiment of this application. Figure 1 ;

[0020] Figure 4 This is an exploded view of an LED automotive lamp in one embodiment of this application. Figure 2 ;

[0021] Figure 5 This is a schematic diagram of the internal structure of an LED automotive lamp in one embodiment of this application. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0023] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" or "second" to define a feature may explicitly or implicitly include one or more of that feature, and in the description of this application, "at least" means one or more, unless otherwise explicitly specified.

[0025] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," and "joining" shall be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may also refer to a mechanical connection; they may refer to a direct connection or a connection through an intermediate medium; or they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] In the application, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "below" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of this application, making the technical solution and its beneficial effects clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, but should not be construed as limiting it.

[0028] like Figures 1 to 5 As shown, this utility model provides an LED automotive light, including: a lamp housing 1, an LED lamp board 2, a self-rotating fan 4, and an interface module 5. The lamp housing 1 adopts a split design, including a left shell 6 and a right shell 7. The LED lamp board 2, as the core light-emitting component, is disposed between the left shell 6 and the right shell 7, and is closely attached to the left shell 6 and the right shell 7 to reduce the size of the LED automotive light. The left shell 6 and the right shell 7 are respectively provided with lamp holes 8. High-brightness LED beads 9 are welded to both sides of the LED lamp board 2, and the LED beads 9 are precisely aligned and located in the lamp holes 8 to achieve double-sided light emission. The interface module 5 is disposed at one end of the lamp housing 1 through a snap-fit ​​structure or a screw structure, and the interface module 5 is electrically connected to the LED lamp board 2, converting the external power supply into the working voltage for the LED lamp board 2. A specially designed heat dissipation cavity 10 is provided between the left shell 6 and the right shell 7. The heat dissipation cavity 10 is located between the LED lamp bead 9 and the interface module 5, forming an independent air duct. The self-rotating fan 4 is located at the center of the heat dissipation cavity 10. The fixed part of the self-rotating fan 4 is electrically and fixedly connected to the interface module 5. The sides of the left shell 6 and the right shell 7 are provided with multiple heat dissipation holes 11 for airflow to enter and exit the heat dissipation cavity 10, forming a forced convection heat dissipation system.

[0029] In one embodiment, a control chip 12 is provided on the side of the LED light panel 2 facing the right shell 7 to realize intelligent dimming function. A square through hole 13 for placing the control chip 12 is provided on the right shell 7 at the corresponding position. This not only facilitates heat dissipation of the control chip 12, but also allows the control chip 12 to pass through the right shell 7, thereby reducing the thickness of the LED car light body.

[0030] In one embodiment, a power management chip 14 is provided on the side of the LED light board 2 facing the left shell 6, which is responsible for voltage conversion and stable power supply. A receiving slot 15 for placing the power chip is provided at the corresponding position on the left shell 6. The power management chip 14 is relatively thin, so it can be placed by providing the receiving slot 15, and there is no need to open a placement hole.

[0031] In one embodiment, the LED light panel 2, the left shell 6 and the right shell 7 are provided with positioning screw holes 16 at corresponding positions, and the three are firmly connected by screws 3.

[0032] In one embodiment, the LED bead 9 adopts a rectangular packaging structure, and the lamp hole 8 is also designed as a rectangular opening to achieve optimal light distribution and light output efficiency.

[0033] As one embodiment, the left shell 6 and the right shell 7 adopt a symmetrical structure design at both ends, and the middle part is designed accordingly because the chips installed on both sides of the LED light board 2 are different, which makes it highly flexible.

[0034] In one embodiment, the interface module 5 includes a power board 17 and a pin unit 18 electrically connected to the power board 17 via solder joints. The power board 17 is located between the self-rotating fan 4 and the pin unit 18 and serves as an electrical transmission device.

[0035] As one embodiment, the pin unit 18 adopts a standardized single-pin plug design to ensure compatibility with vehicle lamp holders.

[0036] In one embodiment, one end of the LED light board 2 is configured as a U-shaped part 19. The U-shaped part 19 is sleeved around the self-rotating fan 4 and fits against the left shell 6 and the right shell 7, which facilitates the concealment of the U-shaped part 19. The end of the U-shaped part 19 is provided with an electrode part 20 for electrical connection. The power board 17 is provided with a groove 21 at a corresponding position to accommodate the electrode part 20.

[0037] This invention effectively solves the heat dissipation bottleneck of LED automotive lights through an innovative, compact, active heat dissipation design, achieving the following significant technical effects:

[0038] Highly efficient active heat dissipation ensures lamp performance and lifespan: A dedicated heat dissipation cavity 10 is set up inside the lamp housing 1, integrating a self-rotating fan 4 to create a highly efficient active heat dissipation system. When the fan is working, it can create a forced airflow within the sealed cavity, quickly carrying away the heat generated by the LED light panel 2, and exchanging heat with the outside through the heat dissipation holes 11. This design significantly improves heat dissipation efficiency, ensures that the LED chip operates at a suitable temperature, effectively delays light decay, stabilizes light output quality, and significantly extends the lamp's lifespan.

[0039] Highly integrated structure enables miniaturized design: Utilizing a miniature self-rotating cooling fan as the core heat dissipation component, this fan integrates the blades and motor into a single, extremely compact structure. This highly integrated design avoids the space-consuming problems of traditional cooling solutions, effectively reducing the overall size of the automotive light and making it more suitable for the demanding installation space requirements of modern automobiles.

[0040] Optimized heat dissipation duct for high reliability: The heat dissipation holes 11 on the left and right shells 7 work in conjunction with the internal heat dissipation cavity 10 to form an effective air convection channel. The integrated fan structure reduces mechanical connection points, resulting in smoother operation and higher reliability, making it ideal for long-term vibration conditions in automotive environments.

[0041] In the description of this specification, the terms "in one embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. The connection methods linked in the description of this specification have significant effects and practical utility.

[0042] Based on the above description of the structure and principles, those skilled in the art should understand that this application is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on this application all fall within the protection scope of this application and should be defined by the claims.

Claims

1. An LED automotive light, characterized in that, include: The lamp housing comprises a left shell and a right shell, with the LED light board positioned between them. Each shell has a lamp hole, and LED beads are located on both sides of the LED light board within the lamp holes. The interface module is located at one end of the lamp housing and is electrically connected to the LED light board. A heat dissipation cavity is positioned between the left and right shells, between the LED beads and the interface module. The self-rotating fan is positioned within the heat dissipation cavity. The left and right shells have heat dissipation holes for airflow into and out of the heat dissipation cavity.

2. The LED automotive light according to claim 1, characterized in that, A control chip is provided on the side of the LED light panel facing the right shell, and a through hole is provided on the right shell for placing the control chip.

3. The LED automotive light according to claim 2, characterized in that, A power chip is provided on the side of the LED light panel facing the left shell, and a receiving slot for placing the power chip is provided on the left shell.

4. The LED automotive light according to claim 3, characterized in that, The LED light panel, left shell, and right shell are provided with screw holes.

5. An LED automotive light according to claim 4, characterized in that, The LED beads are rectangular, and the lamp holes are also rectangular.

6. An LED automotive light according to claim 5, characterized in that, The left and right shells have identical structures at both ends.

7. An LED automotive light according to claim 1, characterized in that, The interface module includes a power board and pin units electrically connected to the power board, with the power board located between the self-rotating fan and the pin units.

8. An LED automotive light according to claim 7, characterized in that, The pin unit is a single-pin connector.

9. An LED automotive light according to claim 7, characterized in that, One end of the LED light panel is provided with a U-shaped part, which is fitted onto the self-rotating fan. The end of the U-shaped part is provided with an electrode part for electrical connection, and the power board is provided with a groove for accommodating the electrode part.

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