Curved surface reflector for car lamp

By designing PC lampshades with curved surfaces, chrome-plated reflective trim and reflective lattice in the headlights, multiple reflective intervals are formed, and the problem of poor reflection effect of existing headlight reflectors is solved, and a wider effect is achieved and more uniform light effect.

CN119436020APending Publication Date: 2025-02-14江苏海德莱特智能科技股份有限公司
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Patent Information

Application Number
CN202411767793.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-02-14

AI Technical Summary

Technical Problem

The existing headlight reflector has poor reflective effect, uneven light effect, and a small output range.

Method used

A curved reflector for car lights is designed, including a PC lampshade with curved surface, a chrome-plated reflective trim and a reflective sheet of PMMA material. The inner surface of the reflective sheet is provided with a reflective lattice to form multiple reflective intervals to increase light. Reflection efficiency.

Benefits of technology

Through this design, efficient light reflection is achieved, and the output range and light effect are improved, making the light more uniform and soft.

✦ Generated by Eureka AI based on patent content.

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Abstract

The curved surface reflector is used for covering a light source of the vehicle lamp and comprises a PC lampshade with a radian curved surface, the PC lampshade is provided with an upper panel part and a lower panel part, and a groove part is arranged between the upper panel part and the lower panel part; the reflective decorative strip is plated with chromium and is arranged in the groove part; and the reflecting sheet is divided into an upper reflecting sheet and a lower reflecting sheet and is buckled at one end of the PC lampshade, the reflecting decorative strip is exposed, and the reflecting sheet is made of a PMMA (Polymethyl Methacrylate) material. The PC lampshade is divided into the upper panel part, the lower panel part and the middle groove part, the PC lampshade is matched with the light reflecting pieces and the light reflecting decorative strips to form three light reflecting intervals, then efficient light reflection is achieved through different reflecting structures, the light emitting range is widened, and the lighting effect is enhanced.
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Description

Technical Field

[0001] The invention belongs to the technical field of vehicle lamp reflectors, and in particular relates to a curved reflector for a vehicle lamp. Background Art

[0002] At present, most car lights use high-lumen LEDs as light sources. It has become a consensus that LED light sources have many advantages over traditional light sources. However, LED chips are small in size and compact in structure, and their luminous area is relatively smaller. They emit light at a 180° angle. Obviously, such light source characteristics are difficult to meet the actual needs of outdoor photography. Therefore, in the application of LED outdoor lighting, we must carry out secondary optical design based on the characteristics of LED light sources according to different application trends and needs, so as to achieve the shaping and change of the light emitted by the LED chip.

[0003] Reflectors mainly collect light through the principle of reflection. At present, there are many kinds of reflectors for LEDs, most of which have complex structures and complicated manufacturing processes, which are time-consuming and labor-intensive. The complicated processes easily lead to low reflector precision, which ultimately leads to poor LED light efficiency. Summary of the invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide a curved reflector for a vehicle lamp, so as to avoid the problems of poor reflection effect, uneven light effect and small emission range of the previous vehicle lamp reflectors.

[0005] In order to solve the above technical problems, the present invention discloses a curved reflector for a vehicle lamp, which is used to cover a vehicle lamp light source, and comprises: A PC lampshade with a curved surface, wherein the PC lampshade has an upper panel portion and a lower panel portion, and a groove portion is provided between the upper panel portion and the lower panel portion; Reflective trim, which is chrome-plated and installed in the groove; The reflector is divided into an upper reflector and a lower reflector, and is buckled on one end of the PC lampshade, and the reflective trim is exposed, and the reflector is set to PMMA material.

[0006] According to one embodiment of the present invention, a reflective lattice is disposed on the inner surface of the reflective sheet.

[0007] According to an embodiment of the present invention, the PC lampshade is provided with a through opening, and the through opening exposes both ends of the reflective sheet.

[0008] According to an embodiment of the present invention, the PC lampshade is located at the rear side of the reflective sheet and is configured as a light guiding plane.

[0009] According to an embodiment of the present invention, a plurality of horizontal light-guiding prisms are arranged on the rear side of the other end of the PC lampshade relative to the reflective sheet, and the light-guiding prisms have a convex curvature.

[0010] According to one embodiment of the present invention, the groove portion is provided with a positioning hole, the reflective decorative strip passes through the positioning hole through a positioning column, and both ends are snapped at the ends of the groove portion.

[0011] According to an embodiment of the present invention, a mounting bracket and a plurality of snap-on convex edges are provided on the edge of the PC lampshade.

[0012] According to an embodiment of the present invention, the reflective lattice of the upper reflective sheet is a quadrangular pyramid, and the reflective lattice of the lower reflective sheet is a triangular pyramid.

[0013] Compared with the prior art, the present invention can achieve the following technical effects: By dividing the PC lampshade into an upper panel part, a lower panel part, and a middle groove part, and cooperating with reflective sheets and reflective trims, three reflective areas are formed, and then using their different reflective structures to achieve efficient light reflection, increase the light output range, and enhance the lighting effect.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 is a schematic diagram of the front side of a curved reflector for a vehicle lamp according to an embodiment of the present invention; Figure 2 1 is a schematic diagram of the rear side of a curved reflector for a vehicle lamp according to an embodiment of the present invention. Figure ID

[0016] PC lampshade 10, upper panel portion 11, lower panel portion 12, groove portion 13, reflective trim 20, reflective sheet 30, upper reflective sheet 31, lower reflective sheet 32, reflective lattice 40, light guide plane 50, light guide prism 60, positioning hole 71, positioning column 72, mounting bracket 81, snap-on flange 82. DETAILED DESCRIPTION

[0017] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0018] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the front side of a curved reflector for a vehicle lamp according to an embodiment of the present invention; Figure 21 is a schematic diagram of the rear side of a curved reflector for a vehicle lamp according to an embodiment of the present invention.

[0019] As shown in the figure, a curved reflector for a vehicle lamp is used to cover a vehicle lamp light source, and comprises: a PC lampshade 10 with a curved surface, the PC lampshade 10 having an upper panel portion 11 and a lower panel portion 12, a groove portion 13 being provided between the upper panel portion 11 and the lower panel portion 12; a reflective trim 20, the reflective trim 20 being chrome-plated and installed in the groove portion 13; a reflective sheet 30, the reflective sheet 30 being divided into an upper reflective sheet 31 and a lower reflective sheet 32, and being buckled at one end of the PC lampshade 10, and exposing the reflective trim 20, and the reflective sheet 30 being set to a PMMA material.

[0020] In one embodiment of the present invention, a PC lampshade 10 covers a vehicle light source, and is used to improve the light reflection angle, increase the emission range, and improve the light effect. The PC lampshade 10 is divided into an upper panel portion 11 and a lower panel portion 12, which are separated by a groove portion 13. At the same time, the groove portion 13 contains a linear reflective decorative strip 20, which plays a role of staggered spacing, so that the previous single lampshade structure adds a sense of layering and more uniform light.

[0021] The reflective sheet 30 corresponds to the upper panel portion 11 and the lower panel portion 12, and also includes an upper reflective sheet 31 and a lower reflective sheet 32, both of which have inner surfaces provided with a reflective lattice 40 that can receive light emitted by the light source and is continuously reflected by the reflective lattice 40, thereby increasing the exit area and homogenizing the light to make it softer.

[0022] Furthermore, the PC lampshade 10 is provided with a through opening, which exposes both ends of the reflective sheet 30, so that light can be directly incident on the reflective sheet from both ends, thereby enhancing the light intensity at both ends and improving warning.

[0023] Preferably, the reflective lattice 40 of the upper reflective sheet 31 is a quadrangular pyramid, and the reflective lattice 40 of the lower reflective sheet 32 ​​is a triangular pyramid, which distinguishes the upper and lower reflective sheets 30 and forms two relatively bright and dark reflective visuals, which can enhance the warning degree.

[0024] In addition, the PC lampshade 10 is located at the rear side of the reflector 30 and is set as a light guide plane 50, that is, the light is incident from the light guide plane 50 to the reflector 30, which can soften the middle light and make it more uniform, forming a clear contrast with the two ends, and having a stronger warning effect.

[0025] The PC lampshade 10 of the present invention is provided with a plurality of horizontal light-guiding prisms 60 at the rear side of the other end relative to the reflective sheet 30. The light-guiding prisms 60 are convex in arc shape, and the arc surface can enhance the reflection angle and increase the reflection area.

[0026] It is worth mentioning that the groove portion 13 is provided with a positioning hole 71, and the reflective decorative strip 20 passes through the positioning hole 71 through a positioning column 72, and both ends are snapped on the end of the groove portion 13, which is convenient for installation.

[0027] In addition, a mounting bracket 81 and a plurality of snap-on flanges 82 are provided on the edge of the PC lamp cover 10 to facilitate installation to the vehicle lamp housing.

[0028] In summary, the present invention divides the PC lampshade into an upper panel portion, a lower panel portion, and a middle groove portion, and cooperates with a reflective sheet and a reflective decorative strip to form three reflective areas, and then uses its different reflective structures to achieve efficient light reflection, increase the light output range, and enhance the lighting effect.

[0029] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A curved reflector for a vehicle lamp, used to cover a vehicle lamp light source, characterized in that: include: A PC lampshade with a curved surface, wherein the PC lampshade has an upper panel portion and a lower panel portion, and a groove portion is provided between the upper panel portion and the lower panel portion; A reflective trim strip, the reflective trim strip is chrome-plated and installed in the groove portion; The reflector is divided into an upper reflector and a lower reflector, and is buckled on one end of the PC lampshade, and the reflective decorative strip is exposed, and the reflector is set to PMMA material.

2. The curved reflector for a vehicle lamp according to claim 1, characterized in that: The inner surface of the reflective sheet is provided with a reflective lattice.

3. The curved reflector for a vehicle lamp according to claim 1, characterized in that: The PC lampshade is provided with a through opening, and the through opening exposes both ends of the reflective sheet.

4. The curved reflector for a vehicle lamp according to claim 1, characterized in that: The PC lampshade is located at the rear side of the reflective sheet and is configured as a light guiding plane.

5. The curved reflector for a vehicle lamp according to claim 1, characterized in that: A plurality of horizontal light-guiding prisms are arranged on the rear side of the other end of the PC lampshade relative to the reflective sheet, and the light-guiding prisms have a convex curvature.

6. The curved reflector for a vehicle lamp according to claim 1, characterized in that: The groove portion is provided with a positioning hole, the reflective decorative strip passes through the positioning hole through a positioning column, and both ends are snapped at the ends of the groove portion.

7. The curved reflector for a vehicle lamp according to claim 1, characterized in that: The edge of the PC lampshade is provided with a mounting bracket and a plurality of buckle convex edges.

8. The curved reflector for a vehicle lamp according to claim 2, characterized in that: The reflective lattice of the upper reflective sheet is a quadrangular pyramid, and the reflective lattice of the lower reflective sheet is a triangular pyramid.