Profiling LED bulb for automobile

Abstract

The utility model relates to a profiling LED bulb for an automobile, which comprises a lampshade, a lamp holder, a circuit board and a light-emitting component, the lampshade and the lamp holder are of a profiling structure of a C5W halogen bulb, the lampshade is of a split structure and comprises two shells with the same structure, semicircular connectors are arranged at two ends of each shell, the lamp holder is sleeved outside the connectors of the two shells, and the circuit board is connected with the light-emitting component. The circuit board is installed in the lampshade and comprises a body, end heads are arranged at the two ends of the body, a receding hole is formed in the surface of the body, and the light-emitting assembly is arranged in the receding hole. The LED signal lamp solves the technical problems that when a halogen bulb is replaced by an LED signal lamp, adaptability is poor, light distribution is uneven, and the light pattern effect is affected.

Description

Technical Field

[0001] This utility model is a contour-following LED bulb for automobiles. Background Technology

[0002] In modern automotive lighting technology, LED signal lights (such as turn signals, brake lights, and position lights) are gradually replacing traditional halogen bulbs and becoming the mainstream due to their advantages such as low energy consumption, long lifespan, and fast response speed. However, despite the many performance advantages of LED signal lights, some technical challenges still exist in practical applications.

[0003] First, LED lights emit light with strong directionality, compared to the omnidirectional light of traditional halogen bulbs. This results in a smaller light coverage area for LED signal lights. This can reduce visibility at certain angles, potentially affecting driving safety.

[0004] Secondly, because LED signal lights emit light in a different position than halogen bulbs, when used as replacements for existing vehicle lights, they may not perfectly match the existing reflectors, resulting in uneven light distribution and affecting the light pattern. This compatibility issue is particularly critical in automotive lighting systems, as the light pattern of signal lights must meet regulatory requirements to ensure sufficient warning effectiveness. Utility model content:

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a contour-following LED bulb for automobiles.

[0006] A contoured LED bulb for automobiles includes a lampshade, a lamp holder, a circuit board, and a light-emitting component. The lampshade and lamp holder are shaped like a C5W halogen bulb. The lampshade is a split structure, comprising two identical housings with semi-circular connectors at both ends. The lamp holder is fitted over the connectors of the two housings. The circuit board is installed inside the lampshade and includes a body with end caps at both ends. The end caps have positioning holes, and the connectors have positioning posts on their mating surfaces. The circuit board body is placed inside the housings, with the end caps positioned between the connectors. The body surface has clearance holes, and the light-emitting component is placed in the clearance holes.

[0007] Furthermore, the light-emitting component includes a diode and a filament bracket. The filament bracket is located inside the clearance hole, and its two ends are respectively connected to the circuit board. The diode is mounted on the filament bracket.

[0008] Furthermore, the circuit board is a flexible printed circuit board (FPC) to accommodate the installation requirements of different lamp holders.

[0009] Furthermore, the circuit board body adopts a double-layer or multi-layer structure to improve conductivity and durability.

[0010] Furthermore, the diode is a high-brightness LED chip and has a reverse connection protection circuit.

[0011] Furthermore, the inner wall of the lampshade is provided with a heat dissipation coating.

[0012] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0013] The lampshade and lamp holder adopt a contoured design similar to a C5W halogen bulb, allowing LED bulbs to directly replace existing halogen bulbs without modification, offering strong compatibility. The lampshade features a split structure consisting of two identical housings, facilitating production and assembly, improving manufacturing efficiency, and reducing production costs. The lamp holder fits onto the outside of the joint between the two housings, forming a stable and fixed structure, ensuring a reliable connection between the lampshade and lamp holder, preventing loosening or detachment, and improving durability. The lampshade can be made of high-transmittance PC or high-temperature resistant glass, with a heat-dissipating coating on the inner wall to facilitate rapid heat conduction, reduce temperature buildup during LED operation, and extend lifespan. The split structure facilitates disassembly and replacement of components; maintenance or replacement of LED components does not require damaging the overall lampshade structure, improving maintenance efficiency. The use of positioning posts and holes ensures the circuit board remains stable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of a contoured LED bulb used in automobiles;

[0015] Figure 2 This is a schematic diagram of the assembly of the light-emitting components on the circuit board;

[0016] Figure 3 This is a schematic diagram of the lampshade;

[0017] In the diagram, 1 is the lamp holder, 2 is the lamp cover, 3 is the circuit board, 4 is the filament support, 5 is the diode, 6 is the positioning hole, 7 is the positioning post, 8 is the end, and 9 is the connector. Detailed Implementation

[0018] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0019] A contoured LED bulb for automobiles includes a lampshade 2, a lamp holder 1, a circuit board 3, and a light-emitting component. The lampshade 2 and the lamp holder 1 are shaped like a C5W halogen bulb. The lampshade 2 is a split structure, comprising two identical housings with semi-circular connectors 9 at both ends. The lamp holder 1 is fitted onto the outside of the connectors 9 of the two housings. The circuit board 3 is installed inside the lampshade 2. The circuit board 3 includes a body with end caps 8 at both ends. The surface of the end caps 8 has positioning holes 6, and the mating surface of the connectors 9 has positioning posts 7. The body of the circuit board 3 is placed inside the housings, and the end caps 8 are placed between the connectors 9. The surface of the body has clearance holes, and the light-emitting component is placed in the clearance holes.

[0020] The contoured structure allows LED bulbs to be fitted to the installation location of C5W halogen bulbs, enabling non-destructive replacement. Meanwhile, the use of clearance holes optimizes the layout of the light-emitting components, improving illumination. On one hand, the contoured structure ensures compatibility between the LED bulb and the original vehicle lamp holder, facilitating easy installation; on the other hand, the optimized component layout enhances light source utilization and improves illumination uniformity.

[0021] In another possible implementation, the light-emitting component includes a diode 5 and a filament bracket 4. The filament bracket 4 is located within a clearance hole, with its two ends connected to the circuit board 3. The diode 5 is mounted on the filament bracket 4. The filament bracket 4 is used to fix the diode 5 and provide a stable electrical connection, ensuring stable light emission from the LED light source while optimizing the light source distribution. The design of the filament bracket 4 stabilizes the light source position, contributes to uniform light distribution, and improves the lifespan of the LED bulb.

[0022] In another possible implementation, circuit board 3 is a flexible printed circuit (FPC) to accommodate the installation requirements of different lamp holders. The FPC circuit board 3 can be bent and adapt to different installation spaces, ensuring bulb compatibility and suitability. The flexible circuit board enhances installation convenience and provides a more flexible solution in complex lamp holder environments.

[0023] In another possible implementation, the circuit board 3 adopts a double-layer or multi-layer structure to improve conductivity and durability. The multi-layer circuit board 3 design reduces resistance, improves current transmission efficiency, and enhances the stability of the bulb. This improves the operating efficiency of the LED bulb and enhances its anti-interference capability.

[0024] In another possible implementation, diode 5 is a high-brightness LED chip with reverse connection protection circuitry. The high-brightness LED chip provides higher luminous flux, improving the bulb's luminous efficiency, while the reverse connection protection circuitry prevents circuit damage caused by reversed power supply polarity. This improves the brightness and reliability of the LED bulb and enhances circuit safety.

[0025] In another possible implementation, the inner wall of the lampshade 2 is provided with a heat dissipation coating. This coating enhances the bulb's heat radiation capability, reduces heat accumulation, and thus improves the LED's efficiency and lifespan. It effectively lowers the bulb's internal temperature, extends the LED's lifespan, and improves the bulb's overall reliability.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A profiled LED bulb for a vehicle, characterized by, The device includes a lampshade, a lamp holder, a circuit board, and a light-emitting component. The lampshade and lamp holder are shaped like a C5W halogen bulb. The lampshade is a split structure, consisting of two identical housings with semi-circular connectors at both ends. The lamp holder is fitted onto the outside of the connectors between the two housings. The circuit board is installed inside the lampshade and includes a main body with end caps at both ends. The end caps have positioning holes, and the connectors have positioning posts on their mating surfaces. The main body of the circuit board is placed inside the housings, and the end caps are placed between the connectors. The main body has clearance holes, and the light-emitting component is placed in the clearance holes. The light-emitting component includes a diode and a filament bracket. The filament bracket is located inside the clearance hole, and its two ends are respectively connected to the circuit board. The diode is mounted on the filament bracket.

2. The profiling LED bulb for an automobile according to claim 1, wherein The circuit board is a flexible circuit board to adapt to the installation requirements of different lamp holders.

3. The profiling LED bulb for an automobile according to claim 2, wherein The circuit board body adopts a double-layer or multi-layer structure to improve conductivity and durability.

4. The profiling LED bulb for an automobile according to claim 1, wherein The diode is a high-brightness LED chip and has a reverse connection protection circuit.

5. The profiling LED bulb for an automobile according to claim 1, wherein The inner wall of the lampshade is provided with a heat dissipation coating.

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