Lightweight thick-walled component and vehicle light

Abstract

The utility model relates to a kind of light-weight thick-wall assembly and car light.The car light includes circuit board 2, lower thick wall 3, upper thick wall 4, lamp shell 9, decorative ring 10, wherein lamp shell 9 is assembly main body, and the rest parts are directly or indirectly fixed on lamp shell 9.Hollow cavity for reducing weight is arranged in lower thick wall 3, and reflective patterns are arranged on the inner and outer sides of the opposite bevels of lower thick wall 3 and upper thick wall 4.Light is emitted after LED on circuit board 2 is energized, and light ray is emitted outward after passing through lower thick wall 3 and upper thick wall 4, and light ray is fully scattered after passing through four layers of reflective patterns, and finally uniform light emitting effect is realized.The car light provided by the utility model has obvious weight reduction effect, and realizes light weight while reducing cost, improving lighting effect and product texture.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, specifically to a lightweight thick-walled component and automotive lighting. Background Technology

[0002] Figure 1 This is the most common direct-projection, thick-walled light-emitting scheme in automotive headlights. Its light-emitting principle is as follows: When the LED on the left-side circuit board is lit, it emits light, which passes through a large, thick wall (1) to the right and projects outwards, thus achieving the functions of daytime running lights, position lights, etc. This light-emitting scheme is widely used in various types of automotive headlights due to its simple structure and flexible design. However, to meet the requirements for uniform light emission and appearance, a solid, deep thick wall is usually required. This thick wall is often heavy, requiring high strength from the supporting structure, resulting in a high overall weight and cost for the headlight, which is very detrimental to lightweighting and cost control. Utility Model Content

[0003] The main purpose of this invention is to solve the problems of high weight and cost that are common in existing direct-emitting thick-walled light-emitting schemes. It provides a lightweight thick-walled component by replacing the original single large thick wall with two smaller thick walls. Lightweighting is achieved by setting a hollow cavity in the thick wall. Furthermore, the increased optical texture of the thick wall makes the light emission more uniform and the lighting effect better.

[0004] To achieve the above effects, the lightweight thick-walled component provided by this utility model includes two thick walls, at least one of which has a hollow cavity inside. The two thick walls are placed close together or arranged side by side at a certain distance, and the light-emitting surface of the thick wall (thick wall a) closer to the light source faces the light-incident surface of the other thick wall (thick wall b). The light passes through the two thick walls and is emitted outward.

[0005] In the above scheme, a hollow cavity is set inside the larger thick wall a, while a hollow cavity is not set inside the smaller thick wall b. The cross-sectional shape of the hollow cavity is triangular, trapezoidal, etc. The hollow thick wall a is mainly used for weight reduction to meet the requirements of lightweighting; while the solid thick wall b is easy to make shallow (i.e., thin) to present a deep texture when not lit.

[0006] In the above scheme, the optical surfaces opposite thick-walled a and thick-walled b are all vertical, horizontal or inclined surfaces, preferably inclined surfaces.

[0007] In the above scheme, at least one concentrator is provided on the light-incident surface of the thick-walled a. The main function of the concentrator is to focus and reshape the light rays so that they enter the thick-walled a in a nearly parallel manner.

[0008] In the above scheme, reflective patterns are provided on the light-emitting surface of the thick-walled a and the inner surface of the opposite hollow cavity (i.e., the inner and outer surfaces on the right side).

[0009] In the above scheme, reflective patterns are provided on both the light-incident surface and the light-exit surface of the thick-walled b.

[0010] In the above scheme, the reflective pattern on thick wall a may be the same as or different from the reflective pattern on thick wall b. Multiple reflective patterns can fully disperse the light, achieving a more uniform lighting effect.

[0011] In the above scheme, the cross-sectional shape of thick wall a is a right trapezoid, the cross-sectional shape of thick wall b is an irregular trapezoid, and the sloping waist of thick wall a faces the lower base of thick wall b.

[0012] The second objective of this utility model is to provide a vehicle lamp equipped with the aforementioned lightweight thick-walled components.

[0013] In the above solution, the vehicle light includes a lightweight thick-walled component, a circuit board, a lamp housing, and a trim ring, wherein the lightweight thick-walled component, the circuit board, and the trim ring are all directly or indirectly fixedly connected to the lamp housing. An LED light source is provided on the circuit board, and a through hole is provided on the trim ring. One end of the thick wall a of the lightweight thick-walled component faces the LED light source on the circuit board, and the other end of the thick wall b is fixed in the through hole of the trim ring.

[0014] Compared with existing similar products or technologies, the progressiveness and beneficial effects of this utility model are mainly reflected in the following aspects: (1) According to previous design schemes, the direct-light thick wall often appears as a single part. In order to ensure the uniformity of light emission and the invisibility of LED bright spots, the depth of the thick wall needs to be increased (i.e., the thickness is wide). This results in a large weight of the thick wall, which is very detrimental to the overall light weight reduction. Therefore, the new scheme replaces the original thick wall with two thick walls, one large and one small. A hollow cavity is set inside the relatively larger thick wall to reduce weight (the overall weight can be reduced by about 80%), achieving weight reduction while ensuring the lighting effect of the headlight.

[0015] (2) The original thick wall had only one light-emitting surface, which had only a single layer of optical pattern. The light emitted by the LED light source was not easily dispersed, resulting in poor light emission uniformity. After the improvement, four layers of reflective patterns on the two thick walls, one large and one small, were used to disperse the light as much as possible, effectively improving the light emission uniformity of the headlight.

[0016] (3) The improved thick-walled light-emitting structure has no obvious difference in appearance compared with the previous one. It can achieve the purpose of lightweighting and optimizing the light-emitting effect without changing the appearance of the whole lamp and regulatory requirements, and ultimately enhance the competitiveness of the product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the previously shown thick-walled light-emitting structure.

[0018] Figure 2 This is a schematic diagram of the light-emitting structure of the lightweight thick-walled component described in this utility model.

[0019] Figure 3 This is a schematic diagram of a vehicle headlight equipped with the aforementioned lightweight thick-walled component.

[0020] Attached reference numerals: 1-Thick wall, 2-Circuit board, 3-Lower thick wall, 4-Upper thick wall, 5-Concentrator, 6-Hollow cavity, 7-Lower thick wall reflective pattern, 8-Upper thick wall reflective pattern, 9-Lamp housing, 10-Decorative ring. Detailed Implementation

[0021] To enable those skilled in the art to fully understand the technical solution and beneficial effects of this utility model, the following detailed description is provided in conjunction with specific embodiments and accompanying drawings. It should be emphasized that these embodiments and drawings are merely some implementations of this utility model. Besides these, this utility model can have many other implementations, and any simple improvements or substitutions based on these embodiments or implementations will fall within the protection scope of this utility model.

[0022] Figure 1 The main problems with the previous direct-emission, thick-walled light-emitting scheme were that the thick walls made it heavy, costly, and the light emission uniformity was poor. Figure 2 Is Figure 1 The improved scheme is based on the previous one. The main improvement is that it replaces the original one large thick wall with two small thick walls. By setting hollow cavities in the small thick walls and adding reflective patterns, the above problems are solved.

[0023] Figure 2-3 The described headlight includes a circuit board 2, a lower thick wall 3, an upper thick wall 4, a lamp housing 9, and a decorative ring 10. The lamp housing 9 is the main assembly component, and the other parts are directly or indirectly fixed to it. Specifically, the circuit board 2 is vertically fixed to the lamp housing with screws, and the lower thick wall 3 is horizontally fixed to the lamp housing 9 with screws, with its left end facing the circuit board 2. The upper thick wall 4 is fixed to the lamp housing 9 with screws, and its left slope is approximately parallel to the right slope of the lower thick wall 3. The decorative ring 10 is fitted onto the upper thick wall 4 and is fixedly connected to the lamp housing 9 by clips or screws.

[0024] Circuit board 2 is connected to the vehicle power supply and control switch via a wiring harness. One or more LEDs are installed on the right side surface of circuit board 2. When powered on, these LEDs light up and emit light, which passes through the lower thick wall 3 and the upper thick wall 4 to the right, realizing single or combined vehicle light functions such as daytime running lights and position lights.

[0025] The lower thick wall 3 has a right-angled trapezoidal cross-section, with a triangular or right-angled trapezoidal hollow cavity inside to achieve weight reduction and lightweighting. Concentrators are protruding from the light-incident surface (i.e., the right-angled waist on the back) on the left side of the lower thick wall 3. These concentrators face the LEDs on the circuit board 2, achieving multiple purposes such as light focusing and beam correction. Reflective patterns 7 are provided on both the inner and outer surfaces (i.e., the sloping waist or light-emitting surface) on the right side of the lower thick wall 3. The shapes of these reflective patterns include corn kernels, serrations, triangles, etc.

[0026] The upper thick wall 4 has an irregular trapezoidal cross-sectional shape. It is fixed obliquely to the lamp housing 9 and spaced a certain distance from the lower thick wall 3. The upper ends of the two are almost flush, while the lower end of the upper thick wall 4 is lower than that of the lower thick wall 3. The upper thick wall 4 is smaller than the lower thick wall 3, and its upper width is smaller than its lower width (i.e., narrower at the top and wider at the bottom). Similarly, similar upper thick wall reflective patterns 8 are provided on the light-incident and light-exit surfaces (i.e., the upper and lower bottoms) of the upper thick wall 4.

[0027] The light-emitting principle of this vehicle light is as follows: the LED on the circuit board 2 emits light after being powered on. The light enters the interior of the lower thick wall 3 through the light-concentrating 5 on the light-incident surface of the lower thick wall 3. After passing through the hollow cavity 6 inside the lower thick wall 3 and the reflective patterns on both sides of the light-emitting surface, the light enters the upper thick wall 4. After passing through the reflective patterns on the light-emitting surface of the upper thick wall 4, the light is emitted outward, realizing various vehicle light functions such as daytime running lights and position lights.

[0028] Although the optical medium inside the lower thick wall 3 has been changed, resulting in a certain loss of optical utilization, by using two thick walls and four optical reflection patterns at the same time, the light pattern can be fully dispersed and made more uniform. This not only meets regulatory requirements but also achieves lightweight and low cost.

Claims

1. A lightweight thick-walled component, characterized in that: The component includes two thick walls arranged side by side, with a hollow cavity inside at least one of the thick walls. Light emitted from the light source passes through the two thick walls in sequence to achieve the corresponding vehicle lighting function.

2. The lightweight thick-walled component as described in claim 1, characterized in that: The thick walls are either tightly packed together or arranged side by side at a certain distance.

3. The lightweight thick-walled component as described in claim 1, characterized in that: A hollow cavity is set inside the thick wall near the light source, while the thick wall away from the light source is solid.

4. The lightweight thick-walled component as described in claim 3, characterized in that: A condenser is placed on the light-incident surface of the thick wall near the light source.

5. The lightweight thick-walled component as described in claim 3, characterized in that: Reflective patterns are provided on both the inner and outer sides of the light-emitting surface of the thick wall near the light source.

6. The lightweight thick-walled component as described in claim 3, characterized in that: Reflective patterns are provided on both the light-incident and light-exit surfaces of the thick wall, which are far from the light source.

7. The lightweight thick-walled component as described in claim 3, characterized in that: The cross-sectional shape of the thick wall near the light source is a right trapezoid, while the cross-sectional shape of the thick wall away from the light source is a trapezoid.

8. The lightweight thick-walled component as described in claim 7, characterized in that: The sloping waist of the thick wall near the light source is directly opposite the bottom of the thick wall away from the light source.

9. A vehicle light, characterized in that: The headlight is equipped with a lightweight thick-walled component as described in any one of claims 1-8.

10. The vehicle light as described in claim 9, characterized in that: The vehicle headlight also includes a circuit board, a headlight housing, and a trim ring. The lightweight thick-walled component, the circuit board, and the trim ring are all directly or indirectly fixedly connected to the headlight housing. An LED light source is provided on the circuit board, and a through hole is provided on the trim ring. The two ends of the lightweight thick-walled component are respectively aligned with the LED light source on the circuit board and the through hole on the trim ring.

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