Automobile LED headlamp with dustproof sealing structure

Abstract

The utility model discloses a kind of automobile LED headlamps with dustproof sealing structure, it includes left lamp body and right lamp body, both cover and form accommodating chamber, bottom is equipped with plug-in interface and plug, outside is equipped with waterproof ring, and is fixed by screw locking. Chamber is equipped with driving plate, fan adapter plate, lamp bead copper plate assembly and fan, lamp bead copper plate assembly middle part is equipped with radiating fin, fan is arranged at radiating hole place. The utility model improves sealing by waterproof ring, prevents water vapor from entering, avoids water mist and circuit damage;Through the synergistic effect of radiating fin and fan, heat is discharged in time, avoid heat accumulation, significantly improve the life of lamp, have higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to an automotive LED headlight with a dustproof and sealing structure. Background Technology

[0002] In the field of automotive lighting technology, LED headlights have gradually become the mainstream choice for modern automotive lighting systems due to their advantages such as high brightness, low energy consumption, and long lifespan. However, existing automotive LED headlights still face some technical challenges in practical applications. Firstly, the sealing performance of existing headlights is generally insufficient. In environments with large temperature differences, external moisture can easily penetrate into the headlight assembly, causing condensation on the inner walls. This condensation not only affects the lighting effect but can also corrode or short-circuit the internal circuitry, thus shortening the headlight's lifespan. Furthermore, while the power of some automotive LED headlights has significantly increased with the development of LED technology, their heat dissipation design has often failed to keep pace. Because heat cannot be dissipated in time, excessively high internal temperatures accelerate the aging of electronic components, further reducing the reliability and durability of the headlights. Therefore, effectively improving the sealing performance of automotive LED headlights to prevent moisture intrusion, while optimizing the heat dissipation structure to ensure the stability of the headlights under high-power operation, has become an important research topic in the current automotive lighting technology field. Utility Model Content

[0003] The purpose of this invention is to provide an automotive LED headlight with a dustproof and sealed structure to overcome the shortcomings of the existing technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An automotive LED headlight with a dustproof and sealed structure. By optimizing the overall structural design and adding sealing and heat dissipation components, the sealing performance and heat dissipation efficiency of the headlight are significantly improved, thereby extending the lifespan of the headlight.

[0005] This utility model provides an automotive LED headlight with a dustproof and sealed structure, comprising a left lamp body and a right lamp body. The left and right lamp bodies are a pair of symmetrically fitted structures, forming a receiving chamber between them. Further, after the left and right lamp bodies are fitted together, an outwardly extending connector is provided on one side of their bottom, and a plug is installed inside the connector. The plug is used for electrical connection with the vehicle body to achieve power input. Specifically, a fixed waterproof ring is fitted on the outer side of the left and right lamp bodies. The waterproof ring design effectively prevents moisture from entering the lamp housing, avoiding water vapor formation due to temperature differences and damage to the circuit components. In addition, the left and right lamp bodies are secured with multiple screws to ensure structural stability and sealing.

[0006] Furthermore, a driver board, a fan adapter board, an LED copper plate assembly, and a fan are fixedly installed within the accommodating cavity. The driver board is responsible for power transmission, providing power support to other components, and is fixedly connected to the plug. The fan adapter board is electrically connected to the driver board and is used to install and fix the fan. The LED copper plate assembly, electrically connected to the driver board, is the main light-emitting part of the lamp. Specifically, a heat dissipation fin is provided in the middle of the LED copper plate assembly, and the design of the heat dissipation fin enhances the heat dissipation effect. The fan is mounted on the fan adapter board and arranged at the heat dissipation holes in the left and right lamp bodies, dissipating heat from inside the lamp body in a timely manner through rotation.

[0007] Specifically, the left and right lamp bodies are equipped with heat dissipation holes, the positions of which are matched with the fan arrangement, enabling the fan to quickly expel heat from inside the lamp. Furthermore, the heat dissipation fins in the middle of the lamp bead copper plate assembly increase heat exchange efficiency by increasing the surface area, thereby further enhancing heat dissipation and preventing heat accumulation. Through the above heat dissipation design, the internal temperature of the lamp is effectively controlled, significantly improving the lamp's lifespan.

[0008] Furthermore, the waterproof ring is made of a flexible material with a rectangular or circular cross-sectional shape to adapt to sealing requirements in different environments. The waterproof ring is fixed to the outer sides of the left and right lamp bodies via an embedded installation method, ensuring a tight fit when the lamp is closed to prevent moisture ingress. Specifically, the thickness of the waterproof ring is adjusted according to the actual operating environment of the lamp to meet different sealing requirements.

[0009] Furthermore, the drive board is fixed to the receiving cavity by screws or clips, and its surface is coated with an insulating coating to prevent short circuits caused by a humid environment. The fan adapter plate is connected to the drive board by welding or plugging to ensure stable power transmission. In particular, the fan adapter plate is made of a metal material with good thermal conductivity to aid in heat dissipation.

[0010] Furthermore, the heat dissipation fins of the LED copper plate assembly are formed by a stamping process, and their surface is oxidized to improve corrosion resistance. Specifically, the height and spacing of the heat dissipation fins are optimized according to the power of the lamp to achieve the best heat dissipation effect. Furthermore, the fan speed is adjusted by a control circuit on the drive board to adapt to the heat dissipation requirements under different operating conditions.

[0011] Furthermore, the mating surfaces of the left and right lamp bodies are precision-machined to ensure a tight fit between them. Specifically, sealing grooves are provided on the mating surfaces to accommodate waterproof rings, thereby further improving sealing performance. Furthermore, the number and distribution of the screws have been optimized through mechanical analysis to ensure the overall structural stability of the lamp fixture.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The waterproof ring design effectively prevents moisture from entering the lamp's interior, avoiding condensation caused by temperature differences and damage to the circuitry. The combined action of the fan and heat sink fins effectively dissipates heat from the lamp's interior, preventing heat buildup and significantly extending its lifespan. Screws securely fasten the left and right lamp bodies, ensuring the overall structural stability of the lamp. In summary, this invention, through optimized sealing and heat dissipation design, solves the problems of insufficient sealing and poor heat dissipation in existing technologies, possessing high practical value and market potential. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a breakdown diagram of the utility model.

[0014] Attached image annotations: 1. Plug; 2. Left lamp body; 3. Right lamp body; 4. Fan; 5. Fan adapter board; 6. Driver board; 7. Lamp bead copper plate assembly; 8. Heat sink fins; 9. Waterproof ring; 10. Screws; 11. Connector. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings: like Figure 1-3 As shown, this embodiment provides an automotive LED headlight with a dustproof sealing structure. The specific implementation is as follows: the left lamp body 2 and the right lamp body 3 are a pair of symmetrical cover structures, forming a cavity for installing the core components of the lamp. After the cover is closed, the left lamp body 2 and the right lamp body 3 have outwardly extending connectors 11 on one side of their bottom. A plug 1 is installed inside the connector 11, and the plug 1 provides power input through electrical connection with the vehicle body. A fixed waterproof ring 9 is fitted onto the outer side of the left lamp body 2 and the right lamp body 3. The waterproof ring 9 is made of flexible material with a rectangular or circular cross-sectional shape to adapt to sealing requirements in different environments. The waterproof ring 9 is fixed to the outer side of the left lamp body 2 and the right lamp body 3 by an embedded installation method, ensuring a tight fit when the lamp is closed to prevent moisture ingress. The left lamp body 2 and the right lamp body 3 are secured with multiple screws 10. The number and distribution of the screws 10 have been optimized through mechanical analysis to ensure the overall structural stability of the lamp.

[0016] The lamp housing contains a driver board 6, a fan adapter plate 5, a copper plate LED assembly 7, and a fan 4. The driver board 6 provides power to other components and is fixed to the inner surface of the housing using screws or clips. An insulating coating prevents short circuits caused by humid environments. The fan adapter plate 5 connects to the driver board 6 via welding or plug-in connections to ensure stable power transmission. The fan adapter plate 5 is made of a thermally conductive metal to aid heat dissipation. The copper plate LED assembly 7, electrically connected to the driver board 6, is the main light-emitting part of the lamp. It features heat dissipation fins 8 formed by stamping and oxidized to improve corrosion resistance. The height and spacing of the heat dissipation fins 8 are optimized for the lamp's power to achieve the best heat dissipation. The fan 4 is mounted on the fan adapter plate 5 and positioned at the heat dissipation holes in the left lamp body 2 and right lamp body 3. Its rotation dissipates heat from the lamp's interior. The fan speed is adjusted by a control circuit on the driver board 6 to meet different heat dissipation requirements under varying operating conditions.

[0017] The left lamp body 2 and right lamp body 3 are specially equipped with heat dissipation holes. The position of these holes matches the arrangement of the fan 4, allowing the fan 4 to quickly dissipate heat from inside the lamp. The heat dissipation fins 8 in the middle of the lamp bead copper plate assembly 7 increase the heat exchange efficiency by increasing the surface area, thereby further enhancing the heat dissipation effect and preventing heat accumulation. Through the above heat dissipation design, the internal temperature of the lamp is effectively controlled, thus significantly improving the lifespan of the lamp. The mating surfaces of the left lamp body 2 and right lamp body 3 are precision machined to ensure a good fit between them. Sealing grooves are provided on the mating surfaces to accommodate the waterproof ring 9, thereby further improving the sealing performance.

[0018] In practical applications, when the car starts, current is input to the drive board 6 through plug 1. The drive board 6 then distributes power to the fan adapter board 5 and the LED bead copper plate assembly 7. The LED beads in the LED bead copper plate assembly 7 begin to emit light, generating a certain amount of heat. At this time, the control circuit on the drive board 6 starts the fan 4. The fan 4, through high-speed rotation, carries away the heat generated by the LED bead copper plate assembly 7 and exhausts it to the outside of the lamp through the heat dissipation holes on the left lamp body 2 and the right lamp body 3. The design of the heat dissipation fins 8 further improves the heat dissipation efficiency; its large surface area allows heat to be quickly transferred to the air, thereby reducing the internal temperature of the lamp. In weather with large temperature differences, the design of the waterproof ring 9 plays a crucial role. It fits tightly against the outside of the left lamp body 2 and the right lamp body 3 to prevent external moisture from entering the lamp, avoiding water vapor phenomena caused by temperature differences and damage to the circuit components.

[0019] During installation, the driver board 6, fan adapter board 5, LED bead copper plate assembly 7, and fan 4 are first installed sequentially into the receiving cavity of the left lamp body 2. Then, the right lamp body 3 is aligned and closed with the left lamp body 2. During the closing process, the waterproof ring 9 is compressed and tightly adhered to the outside of the left lamp body 2 and the right lamp body 3, forming an effective sealing barrier. Subsequently, screws 10 are used to lock and fix the left lamp body 2 and the right lamp body 3 to ensure the stability of the overall structure. Finally, the plug 1 is inserted into the socket 11 to complete the assembly of the lamp.

[0020] During maintenance, if it is necessary to replace the LED copper plate assembly 7 or other core components, the screws 10 can be removed one by one to remove the right lamp body 3, making it easy to access the various components inside the housing. Because the waterproof ring 9 is made of flexible material, it maintains good sealing performance even after repeated disassembly and reassembly. Furthermore, the speed of the fan 4 can be adjusted via the control circuit on the drive board 6 to adapt to different working environments. For example, in high-temperature environments, the speed of the fan 4 can be increased to enhance heat dissipation, while in low-temperature environments, the speed of the fan 4 can be appropriately reduced to decrease energy consumption.

[0021] This invention solves the problems of insufficient sealing and poor heat dissipation in existing technologies by optimizing the sealing structure and heat dissipation design, thus possessing high practical value and market prospects. The waterproof ring 9 effectively prevents moisture from entering the lamp, avoiding condensation caused by temperature differences and damage to the circuitry. The synergistic action of the fan 4 and the heat dissipation fins 8 promptly dissipates heat from inside the lamp, preventing heat accumulation and significantly improving the lamp's lifespan. The left lamp body 2 and right lamp body 3 are secured with screws 10, ensuring the overall structural stability of the lamp. In summary, this invention solves the problems of insufficient sealing and poor heat dissipation in existing technologies by optimizing the sealing structure and heat dissipation design, thus possessing high practical value and market prospects.

[0022] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. For those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A car LED headlight with a dustproof sealing structure, characterized in that... The device includes a left lamp body (2) and a right lamp body (3). The left lamp body (2) and the right lamp body (3) are a pair of symmetrical cover structures, forming a receiving chamber between them. The left lamp body (2) and the right lamp body (3) are provided with an outwardly extending plug interface (11) on one side of the bottom after being covered. A plug (1) is installed in the plug interface (11). A fixed waterproof ring (9) is fitted on the outside of the left lamp body (2) and the right lamp body (3). The left lamp body (2) and the right lamp body (3) are locked and fixed by multiple screws (10). A drive board (6), a fan adapter board (5), a lamp bead copper plate assembly (7) and a fan (4) are fixedly installed in the receiving chamber. A heat dissipation fin (8) is provided in the middle of the lamp bead copper plate assembly (7). The left lamp body (2) and the right lamp body (3) are specially provided with heat dissipation holes.

2. The automotive LED headlight with a dustproof sealing structure as described in claim 1, characterized in that... The waterproof ring (9) is made of flexible material and has a rectangular or circular cross-section. The waterproof ring (9) is fixed to the outside of the left lamp body (2) and the right lamp body (3) by an embedded installation method.

3. The automotive LED headlight with a dustproof sealing structure as described in claim 2, characterized in that... The thickness of the waterproof ring (9) is adjusted according to the actual use environment of the lamp. The left lamp body (2) and the right lamp body (3) are provided with sealing grooves to accommodate the waterproof ring (9).

4. The automotive LED headlight with a dustproof sealing structure as described in claim 1, characterized in that... The drive plate (6) is fixed in the receiving cavity by screws or snap-fit ​​structure, and its surface is coated with an insulating coating. The fan adapter plate (5) is connected to the drive plate (6) by welding or plugging.

5. The automotive LED headlight with a dustproof sealing structure as described in claim 4, characterized in that... The fan adapter plate (5) is made of a metal material with good thermal conductivity, and the speed of the fan (4) is adjusted by the control circuit on the drive plate (6).

6. The automotive LED headlight with a dustproof sealing structure as described in claim 1, characterized in that... The heat dissipation fins (8) are formed by stamping process, and their surface is oxidized to improve corrosion resistance. The height and spacing of the heat dissipation fins (8) are optimized according to the power of the lamp.

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