Linear lighting fixture for motor vehicle

Abstract

The linear lighting lamp comprises a lamp shell, a light source module and a blocking structure, the lamp shell comprises an installation groove, a diffusion light-transmitting area, a reflection area and a shading area, the diffusion light-transmitting area, the reflection area and the U-shaped shading area are integrally formed through three-color co-extrusion, the reflection area is located between the U-shaped shading area and the diffusion light-transmitting area, and the light source module is located between the U-shaped shading area and the diffusion light-transmitting area. The maximum width of the light source module is larger than that of the installation groove, the light source module is vertically installed in the installation groove, the light emitting direction of the light source module faces the reflection area, and the lamp shell is inserted into the plugging structure and fixed through glue injection. Light emitted by the light source module is reflected by the reflection area and then is emitted through the diffusion light-transmitting area. The lamp shell is integrally formed through three-color co-extrusion, the light source module can be installed under the condition that the width of a linear lighting lamp is narrow, and the light emitting effect can be guaranteed; the waterproof LED lamp is simple in structure and easy to assemble, and the waterproof effect can reach IP67.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting technology, and in particular to a linear lighting fixture for motor vehicles. Background Technology

[0002] LEDs have advantages such as small size, energy saving and environmental protection, and have a wide range of applications, such as linear LED strips for automobiles, especially in the taillights of motorcycles or motor vehicles. Linear LED strips typically consist of an LED light board and a lens plate for each LED, with multiple lenses mounted on the lens plate. For example, the LED linear luminaire disclosed in Chinese Patent Publication No. CN214037897U has a relatively cumbersome installation process because the LED light board and lens plate are mounted on a base profile. Furthermore, waterproofing is required between the lens plate and the base profile, and between the LED light board and the base profile, increasing costs and sometimes resulting in poor waterproofing. Additionally, the presence of the base profile between the LED light board and the lens plate affects the luminous effect of the LEDs.

[0003] Meanwhile, automotive linear light strips are sometimes quite narrow, with a width almost identical to that of LED light panels, making it impossible to mount the LED light panels onto the base using a direct-down mounting method. Therefore, there is a need for an automotive linear light strip with a simple structure that can solve the problem of mounting LED light panels in narrow situations while ensuring optimal light output. Utility Model Content

[0004] The main purpose of this utility model is to overcome the above-mentioned shortcomings and deficiencies of the prior art and to provide a linear lighting fixture for motor vehicles.

[0005] A linear lighting fixture for motor vehicles includes a lamp housing, a light source module, and a sealing structure. The lamp housing includes a mounting groove, a diffused light-transmitting area, a reflective area, and a light-shielding area. The diffused light-transmitting area, the reflective area, and the U-shaped light-shielding area are different colors. The diffused light-transmitting area, the reflective area, and the U-shaped light-shielding area are integrally formed by three-color co-extrusion. The reflective area is located between the U-shaped light-shielding area and the diffused light-transmitting area. The mounting groove is located within the space enclosed by the diffused light-transmitting area, the reflective area, and the U-shaped light-shielding area. The maximum width of the light source module is greater than the maximum width of the mounting groove. The light source module is vertically mounted in the mounting groove with its light emission direction facing the reflective area. The lamp housing is inserted into the sealing structure and fixed with glue. The light emitted by the light source module is reflected by the reflective area and then emitted through the diffused light-transmitting area.

[0006] In one embodiment, the cross-sectional shape of the light-diffusing area is semi-circular at the top, and the lower two sides of the light-diffusing area are respectively connected to the U-shaped light-shielding area and the reflective area. The lower end surface of the light-diffusing area is the top surface of the mounting groove.

[0007] In one embodiment, the top surface of the mounting groove is stepped.

[0008] In one embodiment, the reflective area has an L-shaped cross-section. The portion of the reflective area located between the U-shaped light-shielding area and the diffused light-transmitting area is a first reflective area, which is wedge-shaped. The portion of the U-shaped light-shielding area adjacent to the first reflective area is also wedge-shaped. The portion of the reflective area facing the light emission direction of the light source module is a second reflective area, which is the first side of the mounting groove. The portion of the reflective area perpendicular to the light emission direction of the light source module is a third reflective area. The third reflective area and a portion of the U-shaped light-shielding area together form the bottom surface of the mounting groove. The side of the U-shaped light-shielding area opposite to the light emission direction of the light source module is the second side of the mounting groove.

[0009] In one embodiment, the light source module includes a PCB board with at least one row of LED beads along its length, and the PCB board is fitted between the top surface, the second side surface, and the bottom surface of the mounting groove.

[0010] In one embodiment, the diffused light-transmitting area is milky white, the reflective area is white, and the U-shaped light-blocking area is black.

[0011] In one embodiment, the sealing structure includes a plug body, a slot, and a wiring hole. The slot is located at one end of the plug body, and the wiring hole is located at the bottom of the slot and extends through the plug body. The lamp housing, on which the light source module is mounted, is inserted into the slot. A power cord passes through the wiring hole and is connected to the light source module. Sealing elements are provided in the wiring hole and the slot.

[0012] In one embodiment, the slot wall is provided with a plurality of limiting strips, and the sealing member is disposed between the slot wall, the limiting strips and the lamp housing.

[0013] In one embodiment, the lamp housing is made of silicone.

[0014] The beneficial effects of this utility model are as follows: the base and lens for installing the lighting module are integrally extruded into a lamp housing, and the diffused light-transmitting area, the reflective area, and the U-shaped light-shielding area are integrally formed by three-color co-extrusion, which makes the light source module and the lamp housing a whole in the horizontal direction; the lighting module is installed vertically, and the light emitted by the light source module is reflected by the reflective area and then emitted through the diffused light-transmitting area, which can solve the problem of installing the light source module in linear lighting fixtures with narrow widths while ensuring the light output effect; this utility model has a simple structure and is easy to assemble, requiring only waterproofing between the sealing structure and the lamp housing, and the waterproof effect can reach IP67. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the linear lighting fixture for motor vehicles according to this utility model;

[0016] Figure 2 This is a cross-sectional view of the housing of the linear lighting fixture for motor vehicles according to this utility model;

[0017] Figure 3 This is a partial structural schematic diagram of the linear lighting fixture for motor vehicles according to this utility model;

[0018] Figure 4 for Figure 1 A cross-sectional view of the linear lighting fixture for motor vehicles according to this utility model. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] This utility model discloses a linear lighting fixture for motor vehicles, comprising a lamp housing, a light source module, and a sealing structure. The lamp housing includes a mounting groove, a diffused light-transmitting area, a reflective area, and a light-shielding area. The diffused light-transmitting area, the reflective area, and the U-shaped light-shielding area are of different colors. The diffused light-transmitting area, the reflective area, and the U-shaped light-shielding area are integrally formed by three-color co-extrusion. The reflective area is located between the U-shaped light-shielding area and the diffused light-transmitting area. The mounting groove is disposed within the space enclosed by the diffused light-transmitting area, the reflective area, and the U-shaped light-shielding area. The maximum width of the light source module is greater than the maximum width of the mounting groove. The light source module is vertically installed in the mounting groove with its light emission direction facing the reflective area. The lamp housing is inserted into the sealing structure and fixed with glue. The light emitted by the light source module is reflected by the reflective area and then emitted through the diffused light-transmitting area.

[0025] This invention integrates the base and lens for mounting the lighting module into a single lamp housing through extrusion molding. The diffused light-transmitting area, reflective area, and U-shaped light-shielding area are integrally formed through three-color co-extrusion molding, making the light source module and lamp housing a single unit in the horizontal direction. The lighting module is installed vertically, and the light emitted by the light source module is reflected by the reflective area before being emitted through the diffused light-transmitting area. This solves the problem of installing the light source module in linear lighting fixtures with narrow widths while ensuring light output. This invention has a simple structure and is easy to assemble. Waterproofing is only required between the sealing structure and the lamp housing, and the waterproofing effect can reach IP67.

[0026] Example

[0027] Please see Figures 1 to 4 This utility model provides a linear lighting fixture 100 for motor vehicles, including a lamp housing 1, a light source module 2, and a sealing structure 3. The lamp housing 1 includes a mounting groove 11, a diffused light-transmitting area 12, a reflective area 13, and a light-shielding area 14. The diffused light-transmitting area 12, the reflective area 13, and the U-shaped light-shielding area 14 are different colors. The diffused light-transmitting area 12, the reflective area 13, and the U-shaped light-shielding area 14 are integrally formed by three-color co-extrusion. The reflective area 13 is located between the U-shaped light-shielding area 14 and the diffused light-transmitting area 12. The mounting groove 11 is located within the space enclosed by the diffused light-transmitting area 12, the reflective area 13, and the U-shaped light-shielding area 14. The maximum width of the light source module 2 is greater than the maximum width of the mounting groove 11. The light source module 2 is vertically installed in the mounting groove 11 with the light emission direction of the light source module 2 facing the reflective area 13. The lamp housing 1 is inserted into the sealing structure 3 and fixed with glue. The light emitted by the light source module 2 is reflected by the reflective area 13 and then emitted through the diffused light-transmitting area 12.

[0028] Preferably, the lamp housing 1 is made of silicone. More preferably, the color of the diffused light-transmitting area 12 is milky white, the color of the reflective area 13 is white, and the color of the U-shaped light-shielding area 14 is black. The light emitted by the light source module 2 passes through the diffused light-transmitting area 12, resulting in a uniform light effect. The width-to-height ratio of the lamp housing 1 can be 1:2 to 1:5, which is particularly suitable for larger aspect ratios.

[0029] This invention integrates the base and lens for mounting the lighting module into a single extrusion-formed lamp housing 1. The diffused light-transmitting area 12, the reflective area 13, and the U-shaped light-shielding area 14 are integrally formed through three-color co-extrusion, making the lamp housing a single unit. This allows the lighting module 2 to be installed vertically, overcoming the drawback of existing technologies that cannot install the lighting module 2 directly. This enables linear lighting fixtures to achieve side reflection of light from the light source module 2 and front light emission even in narrow widths, while ensuring the light emission effect. This invention has a simple structure and is easy to assemble. Waterproofing is only required between the sealing structure 3 and the lamp housing 1, achieving an IP67 waterproof rating.

[0030] More specifically, the cross-sectional shape of the diffused light-transmitting area 12 is semi-circular at the top, and its lower sides are connected to the U-shaped light-shielding area 14 and the reflective area 13, respectively. The lower end surface of the diffused light-transmitting area 12 is the top surface of the mounting groove 11. Preferably, the top surface of the mounting groove 11 is stepped to facilitate the installation of the light source module 2. The semi-circular light-emitting surface of the diffused light-transmitting area 12 can achieve the best light output effect. At the same time, the diameter of the semi-circle of the diffused light-transmitting area 12 is the width of the lamp housing 1.

[0031] For more details, please refer to Figure 2 and Figure 4 The reflective area 13 has an L-shaped cross-section. The portion of the reflective area 13 located between the U-shaped light-shielding area 14 and the diffused light-transmitting area 12 is the first reflective area 131, which is wedge-shaped. The portion of the U-shaped light-shielding area 14 adjacent to the first reflective area 131 is also wedge-shaped. The portion of the reflective area 13 facing the light-emitting direction of the light source module 2 is the second reflective area 132, which is the first side of the mounting groove 11. The portion of the reflective area 13 perpendicular to the light-emitting direction of the light source module 2 is the third reflective area 133. The third reflective area 133 and part of the U-shaped light-shielding area 14 form the bottom surface of the mounting groove 11. The side of the U-shaped light-shielding area 14 opposite to the light-emitting direction of the light source module 2 is the second side of the mounting groove 11. The wedge-shaped first reflective area 131 can achieve a larger reflection angle for the light emitted by the light source module 2, resulting in greater light intensity.

[0032] For more details, please refer to Figure 2 The light source module 2 includes a PCB board 21, with a row of LED beads 22 arranged along the length of the PCB board 21. The PCB board 21 is fitted between the top surface, the second side surface, and the bottom surface of the mounting groove 11. This embodiment uses a row of LED beads 22 for illustration, but it can also have two rows of LED beads 22 or more. The colors of each row of LED beads 22 can be the same or different.

[0033] For more details, please refer to Figure 3 and Figure 4 The sealing structure 3 includes a plug body 31, a slot 32, and a wire insertion hole 33. The slot 32 is located at one end of the plug body 31, and the wire insertion hole 33 is located at the bottom of the slot 32. The wire insertion hole 33 passes through the plug body 31. The lamp housing 1, which is equipped with the light source module 2, is inserted into the slot 32. A power cord passes through the wire insertion hole 33 and is connected to the light source module 2. A sealing element (not shown) is provided in the wire insertion hole 33 and the slot 32.

[0034] For more details, please refer to Figure 3 and Figure 4The slot 32 has multiple limiting strips 321 on its groove wall, and a sealing element is located between the groove wall of the slot 32, the limiting strips 321, and the lamp housing 1. The limiting strips 321 serve to position and limit the lamp housing 1 when it is inserted into the slot 32. At the same time, the waterproof rating is improved when the gap between the limiting strips 321, the slot 32, and the lamp housing 1 is sealed with glue.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A linear lighting fixture for a motor vehicle, characterized by: The lamp shell comprises a mounting groove, a diffusion light transmission zone, a reflection zone and a light shielding zone, the diffusion light transmission zone, the reflection zone and the U-shaped light shielding zone are different in color, the diffusion light transmission zone, the reflection zone and the U-shaped light shielding zone are integrally formed by three-color co-extrusion, the reflection zone is located between the U-shaped light shielding zone and the diffusion light transmission zone, the mounting groove is arranged in a space enclosed by the diffusion light transmission zone, the reflection zone and the U-shaped light shielding zone, the maximum width of the light source module is greater than the maximum width of the mounting groove, the light source module is vertically mounted in the mounting groove and the light emission direction of the light source module is towards the reflection zone, and the lamp shell is inserted into the sealing structure and fixed by glue injection.

2. The linear lighting fixture for a motor vehicle of claim 1, wherein: The upper part of the cross-sectional shape of the diffusion light transmission zone is semicircular, the lower part of the diffusion light transmission zone is connected with the U-shaped light shielding zone and the reflection zone respectively, and the lower end surface of the diffusion light transmission zone is the top surface of the mounting groove.

3. The linear lighting fixture for a motor vehicle of claim 2, wherein: The top surface of the mounting groove is stepped.

4. The linear lighting fixture for a motor vehicle of claim 2, wherein: The cross-sectional shape of the reflection zone is L-shaped, the part of the reflection zone between the U-shaped light shielding zone and the diffusion light transmission zone is a first reflection zone, the shape of the first reflection zone is wedge-shaped, the part of the U-shaped light shielding zone adjacent to the first reflection zone is also wedge-shaped, the part of the reflection zone towards the light emission direction of the light source module is a second reflection zone, the second reflection zone is the first side surface of the mounting groove, the part of the reflection zone perpendicular to the light emission direction of the light source module is a third reflection zone, the third reflection zone and part of the U-shaped light shielding zone form the bottom surface of the mounting groove, and the surface of the U-shaped light shielding zone opposite to the light emission direction of the light source module is the second side surface of the mounting groove.

5. The linear lighting fixture for a motor vehicle of claim 4, wherein: The light source module comprises a PCB board, at least one row of LED lamp beads are arranged on the PCB board along the length direction of the PCB board, and the PCB board is clamped between the top surface, the second side surface and the bottom surface of the mounting groove.

6. The linear lighting fixture for a motor vehicle of claim 2, wherein: The color of the diffusion light transmission zone is milky white, the color of the reflection zone is white, and the color of the U-shaped light shielding zone is black.

7. The linear lighting fixture of claim 1, wherein: The sealing structure comprises a plug body, a insertion slot and a wire insertion hole, the insertion slot is arranged at one end of the plug body, the wire insertion hole is arranged at the bottom of the insertion slot and penetrates through the plug body, the lamp shell provided with the light source module is inserted into the insertion slot, the power line is arranged in the wire insertion hole and connected with the light source module, and sealing members are arranged in the wire insertion hole and the insertion slot.

8. The linear lighting fixture for a motor vehicle of claim 7, wherein: A plurality of limiting strips are arranged on the wall of the insertion slot, and the sealing members are arranged between the wall of the insertion slot, the limiting strips and the lamp shell.

9. The linear lighting fixture of claim 1, wherein: The material of the lamp shell is silica gel.

Images