Low-cost car lamp and vehicle capable of optimizing lighting uniformity

Abstract

The present invention discloses a low-cost vehicle lamp and a vehicle capable of optimizing lighting uniformity, comprising a light-emitting circuit board, a reflector and a decorative ring, wherein a light-emitting light source is arranged on the light-emitting circuit board, and a decorative part or an assembly part arranged for decoration or assembly needs is arranged on the opposite side of the reflector relative to the inner cavity of the vehicle lamp body, wherein part or all of the inner side surfaces of the decorative part or the assembly part form a shielding portion for shielding light directly or indirectly coming from the light source, and the shielding portion is located at the lower end of the decorative ring eyebrow of the decorative ring; an optical pattern is arranged on the inner end surface of the shielding portion to ensure that the light emitted by the light source is directly or indirectly directed to the optical pattern and then effectively reflected to the reflector by the optical pattern, and then reflected by the reflector to be emitted from the decorative ring eyebrow.

Description

Technical Field

[0001] The invention relates to the technical field of automobile lamps, and in particular to a low-cost automobile lamp and an automobile capable of optimizing lighting uniformity. Background Art

[0002] With the rapid development of the automobile industry and the progress of human civilization, people have put forward higher and higher requirements for the appearance and economy of automobiles. As an important part of automobiles, headlights are no exception. They must meet the requirements of appearance, lighting regulations, uniform lighting effects, and low costs. How to maximize the energy utilization rate and improve the uniformity of lighting for low-cost lamps has become a topic worthy of in-depth research.

[0003] Low-cost lamps in the prior art often adopt reflective type, and using the lamp body as a reflective surface has become a major feature of low-cost lamps. In addition, the entire lamp often uses only one circuit board to achieve the functions of 2-3 signal lights, which greatly saves costs. Figure 1 The cross-sectional structure diagram of the existing low-cost lamp shown in the figure uses the lamp body as a reflective surface and a circuit board to realize the functions of three signal lights.

[0004] However, this solution has great limitations. This is because the LED circuit board is fixed, the LED is far away from the reflective surface for the upper function, and the shape and structure block the output energy, which is very small. Figure 1 It can be seen that the light that can illuminate the upper eyebrow is only the LED light within the 6-degree range in the figure. The single-sided emission angle of the LED is 60 degrees, and the overall emission angle is 120 degrees, which means that only about 5% of the light can be used to light up the eyebrow. Figure 1 It can also be seen that the LED light within a range of 29 degrees is blocked, that is, nearly 25% of the light energy is wasted. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies of existing low-cost vehicle lamps and to provide a low-cost vehicle lamp structure that can increase the effective utilization of light and optimize the lighting uniformity.

[0006] The technical problem to be solved can be implemented through the following technical solutions.

[0007] A low-cost vehicle lamp capable of optimizing lighting uniformity comprises a light-emitting circuit board, a reflector and a decorative ring, wherein a light-emitting light source is arranged on the light-emitting circuit board, and the vehicle lamp body has a characteristic that a decorative part or an assembly part arranged for decoration or assembly needs is arranged on the opposite side of the reflector relative to the inner cavity of the vehicle lamp body, and part or all of the inner side surface of the decorative part or the assembly part forms a shielding portion for shielding light directly or indirectly coming from the light source, and the shielding portion is located at the lower end of the decorative ring eyebrow of the decorative ring; an optical pattern is arranged on the inner end surface of the shielding portion to ensure that the light emitted by the light source is directly or indirectly directed to the optical pattern and then effectively reflected to the reflector by the optical pattern, and then reflected by the reflector to be emitted from the decorative ring eyebrow.

[0008] As a further improvement of the technical solution, the shielding portion is a recessed portion recessed into the inner cavity of the lamp body for decorative purposes.

[0009] As one of the preferred embodiments of the present invention, the light source is an LED lamp.

[0010] As a further improvement of the technical solution, the optical pattern is a combination of one, two or more optical patterns.

[0011] As a further improvement of the technical solution, the optical pattern is an arch-shaped pattern.

[0012] As a further improvement of the present technical solution, the optical pattern is a sawtooth pattern.

[0013] As a further improvement of the present technical solution, the optical pattern is a fisheye pattern.

[0014] Also as a preferred embodiment of the present invention, the shielding portion is a part of the decorative ring.

[0015] Also as one of the preferred embodiments of the present invention, the shielding portion is a part of a reflector component.

[0016] Another technical problem solved by the present invention is to provide a car using the above-mentioned low-cost car lamp that can optimize lighting uniformity.

[0017] The low-cost headlight and automobile using the above technical solution have the following beneficial effects:

[0018] By improving the structure of the parts in front of the reflective surface of low-cost lamps, the problem of energy waste can be solved without increasing costs, maximizing the energy utilization rate and optimizing the lighting uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure and light line of a low-cost lamp in the prior art;

[0020] Figure 2 A schematic diagram of a low-cost vehicle lamp structure and a light-emitting light line that can optimize lighting uniformity provided by the present invention;

[0021] Figure 3 Designed for arched high pattern;

[0022] Figure 4 Designed with a zigzag pattern. DETAILED DESCRIPTION

[0023] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings.

[0024] The present invention is based on the structural design of low-cost vehicle lamps, such as Figure 2 The headlight structure shown is an improvement made to address the deficiencies of the existing design. Specifically, a design structure is added to the parts in front of the reflector and the structure is partially aluminum-plated, providing an optimization solution that can optimize uniformity and improve energy utilization.

[0025] Reference Figure 2 As shown, its specific structure is as follows:

[0026] The light emitting circuit board is provided with an LED light source 5. Among the light emitted by the LED light source 5, light 1 is directly emitted to the optical pattern 7 provided on the inner surface of the concave portion 9 and is effectively reflected by the optical pattern 7 to the reflector 6, and then reflected to the bezel eyebrow 8 for emission. Light 2 is first reflected by the reflector 6, reaches the optical pattern 7, and then reflects by the reflector 6 for the second time, and then reflects by the reflector to the bezel eyebrow 8 for emission. Light 3 and the light between the dotted line 4 do not need to reach the optical pattern 7, and are directly reflected by the reflector 6 and emitted from the bezel eyebrow.

[0027] The recessed portion 9 is a part of a decorative part for the purpose of lamp decoration, and is structurally recessed into the inner cavity of the lamp body. The upper part of the recessed portion 9 is a decorative bezel eyebrow 8 (a part of the decorative bezel); the reflector, the decorative bezel and the decorative part together enclose the inner cavity of the lamp body.

[0028] This solution cleverly uses the blocked energy for secondary reflection and reuses it by designing the structure of the parts in front of the reflective surface. Figure 2As shown in the propagation path of light 1 in FIG, the energy of 25% of the wasted light can be reflected by the designed structure (i.e., optical pattern 7), and then reflected again to the reflective surface of the reflector, and then the energy can be emitted from the upper eyebrows through the reflector. At the same time, the light radiated from the LED center angle within 30 degrees can be blocked by the first reflection of the reflective surface of the reflector, and then reflected again to the reflective surface of the reflector through the second reflection of the designed structure, and the energy can be emitted from the upper eyebrows again by the third reflection of the reflective surface, as shown in FIG. Figure 2 The propagation path of the light 2 in FIG. With the help of the structure of this design, the energy of the secondary reflection and the energy of the tertiary reflection can be effectively utilized, which improves the energy utilization rate and optimizes the lighting uniformity at the eyebrow.

[0029] By adding aluminum-plated design structures to the parts in front of the reflective surface, energy utilization is improved while optimizing lighting uniformity. The added design structures can be provided with different patterns to meet the design requirements of different styling structures for light.

[0030] Figure 3 For the arch-type pattern design, effective use of light can be achieved by designing parameters such as the base surface, arch height and pattern width of the pattern.

[0031] Figure 4 For the sawtooth pattern design, the effective use of light can be achieved by designing parameters such as the base surface of the pattern, sawtooth height, sawtooth width and sawtooth inclination angle.

[0032] The optical pattern can also be in the form of a fisheye pattern, which can be set by adjusting the arch height and segmentation of the pattern. The fisheye can also be turned over, and effective use of light can be achieved by designing parameters such as the arch height and height of the flipped surface.

[0033] Of course, the selection of the optical pattern 7 is not limited to the three patterns mentioned above, and the design structure can also be a combination of two or more patterns, and different patterns can be selected and designed for different shapes to achieve maximum energy utilization. At the same time, the pattern of the design structure can be designed with leather grain to further optimize the lighting uniformity.

[0034] In addition, the recessed portion 9 may also be a part of the decorative ring, or the recessed portion may be a part or a part thereof in front of the reflector; that is, the optical pattern 7 is not limited to being arranged on a decorative part such as a decorative ring, but may also be arranged on an assembly part on the opposite side of the reflector 6 (such as a reflector part).

[0035] Furthermore, the present invention is not limited to the above embodiments. The essence of the present invention is to further improve the shielding part at the front end of the reflector that shields the light from the light source, in order to solve the problem caused by its invalid reflection. The shielding part can be formed on a decorative part or an assembly part. Furthermore, by adding an optical pattern on the inner side of the shielding part and designing the pattern, the performance of the headlight can be improved and enhanced.

[0036] The shielding part is not necessarily limited to the structure of the recessed inner cavity of the lamp body. In addition, the recessed part and the bezel eyebrow can be two materials of the same part of the bezel, for example, the bezel eyebrow is light-transmissive, and the bezel is a non-light-transmissive part and decoration except for the light-transmissive part.

[0037] Because the decorative shape blocks the light, we can make the above pattern design on the back of the block (which is also the part in front of the reflector), or make some pattern optical design on other parts in front of the reflector to realize the re-reflection of light. It is not limited to the structural design of the concave part as a decorative ring or the concave part as a reflector.

[0038] For low-cost lamps, the structural design provided by the present invention can greatly improve the energy utilization without increasing the cost, thereby achieving the purpose of optimizing the lighting uniformity.

Claims

1. A low-cost vehicle lamp capable of optimizing lighting uniformity, comprising a light-emitting circuit board, a reflector and a decorative ring, wherein a light source is provided on the light-emitting circuit board, characterized in that: Relative to the inner cavity of the lamp body, a decorative part or an assembly part is provided on the opposite side of the reflector for decoration or assembly needs, and part or all of the inner side surface of the decorative part or the assembly part forms a shielding portion for shielding light directly or indirectly from the light source, and the shielding portion is located at the lower end of the eyebrow of the decorative ring; an optical pattern is provided on the inner end surface of the shielding portion to ensure that the light emitted by the light source is directly or indirectly directed to the optical pattern and then effectively reflected to the reflector by it, and then reflected by the reflector to be emitted from the eyebrow of the decorative ring.

2. The low-cost vehicle lamp capable of optimizing lighting uniformity according to claim 1, characterized in that: The shielding portion is a recessed portion recessed into the inner cavity of the lamp body for decorative purposes.

3. The low-cost vehicle lamp capable of optimizing lighting uniformity according to claim 1, characterized in that: The light source is an LED lamp.

4. The low-cost vehicle lamp capable of optimizing lighting uniformity according to claim 1, characterized in that: The optical pattern is a combination of one, two or more optical patterns.

5. The low-cost vehicle lamp capable of optimizing lighting uniformity according to claim 4, characterized in that: The optical pattern is an arched pattern.

6. The low-cost vehicle lamp capable of optimizing lighting uniformity according to claim 4, characterized in that: The optical pattern is a sawtooth pattern.

7. The low-cost vehicle lamp capable of optimizing lighting uniformity according to claim 4, characterized in that: The optical pattern is a fisheye pattern.

8. The low-cost vehicle lamp capable of optimizing lighting uniformity according to claim 1, characterized in that: The shielding portion is a part of the decorative ring.

9. The low-cost vehicle lamp capable of optimizing lighting uniformity according to claim 1, characterized in that: The shielding portion is a part of the reflector component.

10. An automobile, characterized in that: The automobile has a low-cost vehicle lamp capable of optimizing lighting uniformity as claimed in any one of claims 1 to 9.

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