Retro-style automotive headlamp using an LED light source

Abstract

The invention relates to a retro-style automotive headlamp using an LED light source, which comprises a reflective lamp base, a heat dissipation unit, a low beam unit, a high beam unit, a shading unit, and an optical lamp cover. The reflective lamp base is bowl-shaped, with a focusing reflective surface and a mounting slot area on its inner surface, the heat dissipation unit is installed within the mounting slot area and includes a vertical wall corresponding to the mounting slot area, as well as an assembly wall extending from one side of the vertical wall away from the mounting slot area. The distance between the upper and lower surfaces of the assembly wall gradually decreases from the end near the vertical wall to the end farther from it, making the upper surface sloped downward and the lower surface sloped upward. The low beam unit and high beam unit are installed on the upper and lower surfaces of the assembly wall, respectively. The shading unit consists of a vertical section and a horizontal section, with the vertical section attached to the end of the assembly wall farthest from the vertical wall, the horizontal section extends toward the vertical wall, with its edge forming an arc shape. The optical lamp cover is attached to the front end of the reflective lamp base, and its inner surface features an optical diffusion surface composed of multiple optical diffusion zones.

Description

Retro-style car headlights using LED light sources This invention relates to a retro-style headlight for vehicles using LED light sources, particularly one that uses LEDs (light-emitting diodes) as the light source for both low and high beams, and can transform the projected point light source into a glossy surface, thus complying with regulations. Furthermore, the headlight cover exhibits a retro visual effect due to the texture of the multiple optical diffusion zones on its inner surface. Antique cars often evoke a sense of nostalgia and possess historical significance, especially as they record the design concepts, craftsmanship, and cultural trends of their time, thus imbuing them with value; this is why antique cars have become collectibles. Some collectors even restore antique cars and drive them on the road, hoping to make the most of their value. Because early vehicles used incandescent bulbs for both low and high beams, and bulbs are consumables with a limited lifespan, the inability to obtain replacement bulbs of the same specifications when production ceased meant that the antique car could not be driven on the road. Retrofitting with modern headlights would create a mismatch between the old and new design of the antique car. Today, the inventors have been actively developing a retro headlight that complies with regulations and can be matched with classic cars. In view of the above-mentioned prior art, the object of the present invention is to provide a headlamp that uses an LED as a light source and whose lampshade has a retro visual effect due to the texture of the multiple optical diffusion areas on its inner surface. The above-mentioned objective of the present invention is achieved through the following techniques: A retro-style automotive headlight using LED light sources includes a reflector mount, a heat-conducting unit, a low beam unit, a high beam unit, a light-shielding unit, and an optical cover; wherein: The reflector lamp holder is bowl-shaped, with a light-concentrating reflective surface formed on its inner surface, and a recessed mounting groove area is provided. The heat-conducting unit is installed in the mounting groove area. The heat-conducting unit includes a vertical wall corresponding to the mounting groove area and an assembly wall extending away from the mounting groove area on one side surface of the vertical wall. The distance between the upper and lower surfaces of the assembly wall gradually decreases from the end adjacent to the vertical wall to the end away from the vertical wall, so that the upper surface is inclined downward and the lower surface is inclined upward. The near lamp unit is installed on the upper surface of the assembly wall. The near lamp unit includes a near lamp circuit board and at least one near lamp LED light source mounted on the near lamp circuit board. The high beam unit is installed on the lower surface of the assembly wall. The high beam unit includes a high beam circuit board and at least one high beam LED light source mounted on the high beam circuit board. The light-shielding unit includes an upright section and a horizontal section. The upright section is attached to the end of the assembly wall away from the vertical wall. The horizontal section extends from the upper edge of the upright section toward the vertical wall, and the end edge of the horizontal section is arc-shaped. The optical lampshade is attached to the front end of the reflective lamp holder. Its inner surface has an optical diffusion surface composed of a plurality of optical diffusion areas. The optical lampshade is light-transmitting, so that the outline of the plurality of optical diffusion areas can be displayed on the outside of the optical lampshade. As described above, in the retro headlight for vehicles using LED light sources, at least one protrusion is provided on the end face of the assembly wall away from the vertical wall, and at least one hole is provided on the upright section of the light-shielding unit. The hole is a corresponding insertion of the protrusion, so that the light-shielding unit is positioned on the heat-conducting unit. To provide a more complete and clear disclosure of the technical content, inventive purpose, and effects achieved by this invention, a detailed description is provided below, along with reference to the accompanying drawings and figures: Please refer to the first figure. The retro-style headlight for automobiles using LED light sources of this invention includes a reflector lamp holder 1, a heat-conducting unit 2, a low beam unit 3, a high beam unit 4, a light-shielding unit 5, and an optical cover 6; wherein: The reflector lamp holder 1 is bowl-shaped, and its inner surface forms a light-concentrating reflective surface 11 so that the light generated by the near lamp unit 3 and the far lamp unit 4 can be concentrated through the reflection of each light-concentrating reflective area 111 constituting the light-concentrating reflective surface 11. The inner surface of the reflector lamp holder 1 is also provided with a recessed mounting groove area 12. The heat-conducting unit 2 (hereinafter referred to as Figures 2 to 4) is installed in the mounting groove area 12 of the reflector lamp holder 1. The heat-conducting unit 2 includes a vertical wall 21 corresponding to the mounting groove area 12, and an assembly wall 22 extending away from the mounting groove area 12 on one side surface of the vertical wall 21. The distance between the upper surface 221 and the lower surface 222 of the assembly wall 22 gradually decreases from the end adjacent to the vertical wall 21 to the end away from the vertical wall 21, so that the upper surface 221 gradually slopes downward towards the end away from the vertical wall 21, and the lower surface 222 gradually slopes upward towards the end away from the vertical wall 21. The near lamp unit 3 is installed on the upper surface 221 of the assembly wall 22 of the heat conduction unit 2. The near lamp unit 3 includes a near lamp circuit board 31 and at least one near lamp LED light source 32 mounted on the near lamp circuit board 31. The high beam unit 4 is installed on the lower surface 222 of the assembly wall 22 of the heat conduction unit 2. The high beam unit 4 includes a high beam circuit board 41 and at least one high beam LED light source 42 mounted on the high beam circuit board 41. The light-shielding unit 5 includes an upright section 51 and a horizontal section 52. The upright section 51 is attached to the assembly wall 22 of the heat-conducting unit 2 and is located at one end away from the vertical wall 21. The horizontal section 52 extends from the upper edge of the upright section 51 toward the vertical wall 21 and the end edge of the horizontal section 52 is arc-shaped. The optical lampshade 6 is attached to the front end of the reflective lamp holder 1, and an optical diffusion surface 61 is formed on its inner surface. The optical diffusion surface 61 includes a plurality of optical diffusion areas 611. The optical lampshade 6 is light-transmitting, so that the grid-like outline of the optical diffusion area can be viewed from the outside of the optical lampshade 6. During assembly (see Figures 2 to 4), the vertical wall 21 of the heat-conducting unit 2 is embedded into the mounting groove 12 inside the reflector lamp holder 1, and a screw (not shown in the figure) is passed through the mounting groove 12 on the outside of the reflector lamp holder 1 and locked into the heat-conducting unit 2, thus fixing the heat-conducting unit 2 inside the reflector lamp holder 1; the near lamp unit 3 and the far lamp unit 4 are respectively placed on the upper surface 221 and lower surface 222 of the assembly wall 22 of the heat-conducting unit 2, and two screws (not shown in the figure) are passed through the near lamp circuit board 31 and the far lamp circuit board 41 respectively and locked into the assembly wall 22 of the heat-conducting unit 2, thus fixing the near lamp unit 3... The high beam unit 4 is fixed to the upper surface 221 and lower surface 222 of the assembly wall 22 of the heat conduction unit 2, respectively. The light shielding unit 5 has its vertical section 51 attached to the end of the assembly wall 22 away from the vertical wall 21, and its three screws (not shown in the figure) pass through the vertical section 51 and are locked into the assembly wall 22 to fix the light shielding unit 5 to the heat conduction unit 2. At this time, the arc-shaped edge of the horizontal section 52 of the light shielding unit 5 is opposite to the adjacent low beam LED light source 32 to block part of the light from the low beam LED light source 32. The optical lamp cover 6 is combined with the reflector lamp holder 1 with the optical diffusion surface 61 facing the reflector lamp holder 1. Therefore, when the low beam unit 3 and high beam unit 4 are not activated, viewed from the outside of the optical cover 6, the grid-like outline of the optical diffusion areas 611 forming the optical diffusion surface 61 on the inner side of the optical cover 6 can be seen, giving the headlight a retro feel. When the low beam LED light source 32 is activated, some of the light from the low beam LED light source 32 is blocked by the light shielding unit 5. After being reflected and focused by the light-focusing reflective area 111 on the light-focusing reflective surface 11 of the reflector 1, the light is diffused through the optical diffusion area 611 of the optical diffusion surface 61 of the optical cover 6, thus diffusing the originally focused light into a low beam pattern that complies with regulations. When the high beam LED light source 42 is activated, after being reflected and focused by the light-focusing reflective area 111 on the light-focusing reflective surface 11 of the reflector 1, the light is diffused through the optical diffusion area 611 of the optical diffusion surface 61 of the optical cover 6, thus diffusing the originally focused light into a high beam pattern that complies with regulations. In a preferred embodiment of the present invention (see Figures 1, 2, and 3), the heat-conducting unit 2 has at least one protrusion 23 on the end face of its assembly wall 22 away from the vertical wall 21, and the upright section 51 of the light-shielding unit 5 has at least one hole 511, which is a corresponding insertion of the protrusion 23, so that the light-shielding unit 5 is positioned on the heat-conducting unit 2, and the light-shielding unit 5 and the heat-conducting unit 2 are easily locked together with three screws. The examples given above are only some embodiments of the present invention and are not intended to limit the present invention. Any modifications or variations made based on the inventive spirit and features of the present invention should also be included within the scope of this patent. In conclusion, the embodiments of the present invention can indeed achieve the expected effects, and the specific technical means disclosed therein have not been seen in similar products, nor have they been disclosed before the application. Therefore, it fully complies with the provisions and requirements of the Patent Law. Thus, we hereby file an application for an invention patent and respectfully request your review and grant of a patent, which would be of great benefit to you. 1: Reflector base; 11: Focusing reflective surface; 111: Focusing reflective area; 12: Mounting groove area; 2: Heat-conducting unit; 21: Vertical wall; 22: Assembly wall; 221: Upper surface; 222: Lower surface; 23: Protrusion; 3: Near lamp unit; 31: Near lamp circuit board; 32: Near lamp LED light source; 4: High lamp unit; 41: High lamp circuit board; 42: High lamp LED light source; 5: Shading unit; 51: Vertical section; 511: Hole; 52: Horizontal section; 6: Optical lamp cover; 61: Optical diffusion surface; 611: Optical diffusion area. [Figure 1] Exploded perspective view of the headlamp of the present invention [Figure 2] Assembled perspective view of the headlamp of the present invention [Figure 3] Front view of the headlamp of the present invention [Figure 4] Side view of the headlamp of the present invention (sectional view) 1: Reflector lamp holder 11: Concentrating reflective surface 111: Focusing Reflection Zone 12: Installation slot area 2: Thermal Conductive Unit 21: Vertical wall 22: Assembled Wall 221: Upper surface 222: Lower surface 23:convex body 3: Low beam unit 31: Low beam circuit board 32: Low-light LED light source 4: High Beam Unit 41: High beam circuit board 42: LED headlights 5: Light-shielding unit 51: Upright Section 511: Kong 52: Horizontal section 6: Optical lampshade 61: Optical diffusion surface 611: Optical diffusion region

Claims

1. A retro-style automotive headlight using LED light sources includes a reflector mount, a heat-conducting unit, a low beam unit, a high beam unit, a light-shielding unit, and an optical cover; wherein: The reflector lamp holder is bowl-shaped, with its inner surface forming a light-concentrating reflective surface and a recessed mounting groove area. The heat-conducting unit is installed in the mounting groove area. The heat-conducting unit includes a vertical wall corresponding to the mounting groove area and an assembly wall extending away from the mounting groove area on one side surface of the vertical wall. The distance between the upper and lower surfaces of the assembly wall gradually decreases from the end adjacent to the vertical wall to the end away from the vertical wall, making the upper surface downward sloping and the lower surface upward sloping. The near lamp unit is installed on the upper surface of the assembly wall. The near lamp unit includes a near lamp circuit board and at least one near lamp LED light source mounted on the near lamp circuit board. The far lamp unit is installed on the lower surface of the assembly wall. The far lamp unit includes a far lamp circuit board and at least one far lamp LED light source mounted on the far lamp circuit board. The light-shielding unit includes an upright section and a horizontal section. The upright section is attached to the end of the assembly wall away from the vertical wall. The horizontal section extends from the upper edge of the upright section toward the vertical wall, and the end edge of the horizontal section is curved. The optical lampshade is attached to the front end of the reflective lamp holder. Its inner surface has an optical diffusion surface composed of a plurality of optical diffusion areas. The optical lampshade is light-transmitting, so that the outline of the plurality of optical diffusion areas can be displayed on the outside of the optical lampshade. Retro-style automotive headlights using LED light sources, as described in claim 1, wherein, At least one protrusion is provided on the end face of the assembly wall away from the vertical wall, and at least one hole is provided on the upright section of the light-shielding unit. The hole is a corresponding insertion of the protrusion, so that the light-shielding unit is positioned on the heat-conducting unit.

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