A dynamic position light and a car tail light

Abstract

This utility model relates to the field of automotive lighting technology, and particularly to a dynamic position light and automotive taillight. The dynamic position light includes a circuit board assembly, a columnar grating plate, a diffuser inner lamp cover, and a 3D inner lamp cover. The circuit board assembly includes an LED light source. The columnar grating plate is made of a reflective material. The 3D inner lamp cover is made of transparent plastic and has several raised cut patterns on its front side. The cut patterns are pyramidal or similar in shape, and each inclined surface of the raised pattern forms a cut surface at a certain angle with the plane of the back of the 3D inner lamp cover. The 3D inner lamp cover not only gives the light a 3D stereoscopic effect when the light is not illuminated, but also, when the position light function is activated, uses the angle of the 3D cut surface to refract light, meeting the light distribution requirements of the position light. Regardless of whether the light is illuminated or not, it presents different patterns as the observer's viewing angle changes, achieving a dynamic effect.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting technology, and in particular to a dynamic position light and a car taillight. Background Technology

[0002] Currently, in the automotive lighting field, dynamic and 3D position lights are primarily achieved through a combination of LEDs and optical components, with each LED / string driven by a microcontroller unit (MCU) to achieve functions such as breathing and flowing lights. This method is an effective means of achieving advanced dynamic and 3D automotive lighting effects, but it comes at the cost of significantly increased cost and system complexity. For example, a large number of LED chips are needed to form fine light strips or surface light sources to achieve dynamic and 3D effects, and each LED or group of LEDs requires an independent driving channel. Furthermore, to achieve uniform light emission, as well as specific light guidance and a 3D stereoscopic effect, sophisticated and complex multi-layered optical components need to be designed, and the design and production costs of these components are very high. Utility Model Content

[0003] The technical problem to be solved by this utility model is: In order to overcome the above-mentioned technical problems, this utility model provides a dynamic position light and a car taillight. It uses the principle of columnar grating, combines a 3D lamp cover with an LED light source to realize the position light function, and can achieve a dynamic effect as the observer's observation position moves, whether the function is on or off.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a dynamic position lamp, including a circuit board assembly, the circuit board assembly including an LED light source and its driving circuit, and also including a columnar grating plate, a diffuser inner lamp cover and a 3D inner lamp cover.

[0005] The columnar grating plate is made of a reflective material and has a grating layer, which includes a columnar lens array.

[0006] The 3D inner lampshade is made of transparent plastic and has several raised cut patterns on its front side. These cut patterns are pyramidal or pyramid-like, and each inclined surface of the raised pattern forms an angle with the plane of the back of the 3D inner lampshade. The front of the 3D inner lampshade faces the light emission direction, and the back faces the columnar lens array. The pyramidal or pyramid-like cut patterns, i.e., square pyramids or similar shapes, enhance the three-dimensional effect. Utilizing the principle of light refraction, when light shines on each inclined surface of the cut pattern, it can be refracted to the desired angle. The angle of refraction can be adjusted by changing the angle of the inclined surface.

[0007] The diffuser cover is installed on the circuit board assembly. The light emitted by the LED light source on the circuit board assembly is diffused by the diffuser cover to form uniform light that shines on the columnar grating plate. After the light shines on the columnar grating plate, the light is reflected and shines on the surface of the 3D diffuser cover. The light is refracted out through the cut surfaces of the cut pattern on the surface of the 3D diffuser cover.

[0008] The cutting patterns are arranged evenly and orderly on the front of the 3D inner lampshade.

[0009] The cutting patterns are arranged in a vertical and horizontal array on the front of the 3D inner lampshade, and each cutting pattern has the same shape and size.

[0010] The diffuser inner lampshade is horizontally positioned above the circuit board assembly, while the columnar grating plate and the 3D inner lampshade are both vertically positioned above the diffuser inner lampshade.

[0011] The present invention relates to a car taillight, including the aforementioned dynamic position light.

[0012] The beneficial effects of this utility model are that it provides a dynamic position light that utilizes the principle of a columnar grating plate combined with a 3D inner lampshade to achieve a novel dynamic position light effect. In this utility model, the 3D inner lampshade not only gives the light a 3D stereoscopic effect when the light is off, but also refracts light using the angle of the 3D cut surface when the position light function is activated, thus meeting the light distribution requirements of the position light. The function of the grating plate is to present different patterns as the observer's viewing angle changes, regardless of whether the light is on or off, achieving a dynamic effect. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a structural schematic diagram of the preferred embodiment of the dynamic position lamp of this utility model.

[0015] Figure 2 This is a schematic diagram of the columnar grating plate in the dynamic position lamp of this utility model.

[0016] Figure 3 This is a schematic diagram illustrating the working principle of the columnar grating plate in the dynamic position lamp of this utility model.

[0017] Figure 4 This is an isometric view of the 3D inner lampshade in the dynamic position lamp of this utility model.

[0018] In the figure: 1. Circuit board assembly; 1-1. LED light source; 2. Columnar grating board; 2-1. Columnar lens array; 3. Diffusing inner lamp cover; 4. 3D inner lamp cover; 4-1. Cutting pattern; 4-1s. Cutting surface; 4-2. Back side. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] like Figure 1 As shown, this utility model discloses a dynamic position lamp, including a circuit board assembly 1. The circuit board assembly 1 includes an LED light source 1-1 and its driving circuit, as well as a columnar grating plate 2, a diffuser inner lampshade 3, and a 3D inner lampshade 4. The columnar grating plate 2 is made of a reflective material, such as... Figure 2 As shown, the columnar grating plate 2 has a grating layer, which includes a columnar lens array 2-1. The 3D inner lampshade 4 is made of transparent plastic and has several raised cut patterns 4-1 on its front side. Figure 4 As shown, the cutting pattern 4-1 is pyramidal or similar in shape, and each inclined surface of the protrusion of the cutting pattern 4-1 is a cutting surface 4-1s that forms a certain angle with the plane where the back surface 4-2 of the 3D inner lampshade 4 is located. The front of the 3D inner lampshade 4 faces the light emission direction, and the back surface 4-2 of the 3D inner lampshade 4 faces the columnar lens array 2-1.

[0021] The diffuser inner lamp cover 3 is placed on the circuit board assembly 1. The light emitted by the LED light source 1-1 on the circuit board assembly 1 is diffused by the diffuser inner lamp cover 3, forming uniform light that illuminates the columnar grating plate 2. After the light illuminates the columnar grating plate 2, the light is reflected and illuminates the surface of the 3D inner lamp cover 4. The light is refracted out through the cut surfaces 4-1s of the cut pattern 4-1 on the surface of the 3D inner lamp cover 4.

[0022] The cut patterns 4-1 are arranged evenly and orderly on the front of the 3D inner lampshade 4. As one embodiment, such as... Figure 4 As shown, the cut patterns 4-1 are arranged in a longitudinal and transverse array on the front of the 3D inner lampshade 4, and each cut pattern 4-1 has the same shape and size. The size of the cut pattern unit can be adjusted according to the results of optical simulation margin and the desired appearance effect.

[0023] The angles formed by the four protruding inclined surfaces of the cut pattern 4-1 and the plane containing the back surface 4-2 of the 3D inner lampshade 4 can be adjusted according to the requirements of position lighting optical regulations. For example... Figure 4 As shown, the four inclined surfaces include two inclined surfaces in the horizontal direction and two inclined surfaces in the vertical position, and the inclination angle of each is adjustable.

[0024] The diffuser inner lamp cover 3 is horizontally positioned above the circuit board assembly 1, while the columnar grating plate 2 and the 3D inner lamp cover 4 are both vertically positioned above the diffuser inner lamp cover 3.

[0025] The present invention relates to a car taillight, including the aforementioned dynamic position light.

[0026] In this invention, the light emitted by the LED light source 1-1 on the circuit board assembly 1 first passes through the diffuser 3 and then forms uniform light that illuminates the columnar grating plate 2. The columnar grating plate 2 is made of a reflective material. After the light shines on the columnar grating plate 2, the light is reflected and illuminates the surface of the 3D inner lamp cover 4. The 3D inner lamp cover 4 is made of a transparent material and has a cut surface 4-1s at a specific angle on its surface. The light path is refracted to the required light distribution angle through these specific cut surfaces 4-1s to achieve the light distribution requirements of the position lamp.

[0027] like Figure 3 As shown, when parallel incident light shines on the grating, the grating disperses the light into diffracted beams in different directions, forming a diffraction pattern. This invention utilizes this principle of columnar grating sheets, combined with a 3D lampshade and LED light source 1-1, so that when the position light is lit, the observer can see different position light patterns in different viewing directions, and as the observer's position moves, the position light pattern in the observer's field of vision also changes accordingly, realizing the function of dynamic position light.

[0028] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A dynamic position light, comprising a circuit board assembly (1), wherein the circuit board assembly (1) includes an LED light source (1-1) and its driving circuit, characterized in that: It also includes a columnar grating plate (2), a diffuser inner lampshade (3), and a 3D inner lampshade (4); The columnar grating plate (2) is made of a reflective material and has a grating layer, which includes a columnar lens array (2-1). The 3D inner lampshade (4) is made of transparent plastic material and has several raised cut patterns (4-1) on the front. The cut patterns (4-1) are pyramid-shaped or similar pyramid-shaped. Each inclined surface of the raised cut pattern (4-1) is a cut surface (4-1s) that forms a certain angle with the plane where the back (4-2) of the 3D inner lampshade (4) is located. The front of the 3D inner lampshade (4) faces the light emission direction, and the back (4-2) of the 3D inner lampshade (4) faces the columnar lens array (2-1). The diffuser inner lamp cover (3) is placed on the circuit board assembly (1). The light emitted by the LED light source (1-1) on the circuit board assembly (1) is diffused by the diffuser inner lamp cover (3) to form uniform light that illuminates the columnar grating plate (2). After the light illuminates the columnar grating plate (2), the light is reflected and illuminates the surface of the 3D inner lamp cover (4). The light is refracted out through the cut surfaces (4-1s) of the cut pattern (4-1) on the surface of the 3D inner lamp cover (4).

2. The dynamic position light as described in claim 1, characterized in that: The cutting patterns (4-1) are arranged evenly and orderly on the front of the 3D inner lampshade (4).

3. The dynamic position light as described in claim 2, characterized in that: The cutting patterns (4-1) are arranged in a longitudinal and transverse array on the front of the 3D inner lampshade (4), and each cutting pattern (4-1) has the same shape and size.

4. The dynamic position light as described in claim 1, characterized in that: The diffuser lampshade (3) is horizontally positioned above the circuit board assembly (1), and the columnar grating plate (2) and the 3D lampshade (4) are both vertically positioned above the diffuser lampshade (3).

5. A type of automotive taillight, characterized in that: Includes the dynamic position light as described in any one of claims 1-4.

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