Automobile rear quarter window welcome lamp structure

By designing a compact welcome lamp structure on the rear triangle window of the car, including the fixing method of light guide plate and PCBA board, the existing welcome lamps are solved, and the low-cost, high-efficiency and beautiful welcome lamp effects are achieved.

CN223204162UActive Publication Date: 2025-08-08CHONGQING MINGYANG POLICE SAFETY ELECTRIC CO LTD
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Patent Information

Application Number
CN202422042765.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-22
Publication Date
2025-08-08
Estimated Expiration
2034-08-22

AI Technical Summary

Technical Problem

The existing welcome lights are installed on the door or rearview mirror through mounting plates, which are costly and not very beautiful.

Method used

The car rear triangle window welcome lamp structure is adopted, including a two-color mask, light guide plate, PCBA board, base, self-tapping screw, wire harness assembly and insert bolts. The light guide plate and PCBA board are fixed to the base through self-tapping screws. The base is ultrasonic welded with the two-color mask, and the LED side of the PMMA light guide plate and PCBA board emit light, which is compact in structure and small in size.

Benefits of technology

It reduces the cost of welcome lamps, improves luminous efficiency and aesthetics, reduces product design complexity, and reduces testing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile lamp illumination, in particular to an automobile rear quarter window welcome lamp structure which comprises a double-color mask, a light guide plate, a PCBA plate, a base, a self-tapping screw, a wire harness assembly and an insert bolt. The light guide plate and the PCBA plate are fixedly installed on the base through three self-tapping screws, the PCBA plate is arranged on the side of the light guide plate, LEDs on the PCBA plate emit light laterally so as to illuminate the light guide plate, the base is provided with a clamping groove used for sealing glue plugs, the wiring harness assembly is connected with the PCBA plate, the light guide plate is located between the base and the double-color mask, and the double-color mask is arranged between the base and the double-color mask. After assembly, the base and the double-color mask are fixed in an ultrasonic welding mode, the double-color mask is subjected to double-color injection molding, one color is made of PC milk white materials sprayed with high-brightness black, the other color is made of PC + ABS black materials, the round lamp and the rear quarter window are integrated, and after spraying, pattern laser carving is carried out to achieve the exterior-view lightening effect. The problem that an existing welcome lamp is installed on a vehicle door or a rearview mirror through an installation plate, and cost is high is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile lighting, in particular to a welcome light structure for a rear triangular window of an automobile. Background Art

[0002] Welcome lights (also known as ground lights) serve as auxiliary lighting, illuminating the ground or illuminating the path in low ambient light. They expand the field of vision and enhance the vehicle's aesthetics. For example, a car's welcome lights are typically mounted on the doors or rearview mirrors. When the door is opened, they illuminate and project an image onto the ground. This not only creates a unique and dazzling image, but also illuminates the ground when the door is opened in low ambient light, such as at night. This allows passengers to pay attention to the ground and avoid accidentally stepping on dirt, puddles, or other dangerous terrain.

[0003] However, the existing welcome lights are installed on the car door or rearview mirror through a mounting plate, which is bulky and not very beautiful. Utility Model Content

[0004] The utility model aims to provide a car rear triangular window welcome light structure, aiming to solve the problem that the existing welcome light is installed on the car door or rearview mirror through a mounting plate, which is costly.

[0005] To achieve the above-mentioned purpose, the utility model provides a car rear triangular window welcome light structure, including a two-color mask, a light guide plate, a PCBA board, a base, self-tapping screws, a wiring harness assembly and an insert bolt;

[0006] The PCBA board is arranged in the base, the light guide plate is arranged on the top of the PCBA board, the two-color mask is arranged on the side of the light guide plate away from the PCBA board, the self-tapping screw is threadedly connected to the base and passes through the light guide plate and the PCBA board, the wiring harness assembly is connected to the PCBA board and passes through the base, and the insert bolt is threadedly connected to the base and passes through the base.

[0007] Wherein, the automobile rear triangular window welcome light structure further includes a sealing plug, and the sealing plug is arranged on one side of the base.

[0008] Among them, the automobile rear triangular window welcome light structure also includes a ventilation component, and the ventilation component is arranged at the bottom of the base.

[0009] Wherein, the light guide plate is made of PMMA light-transmitting material.

[0010] Among them, the PCBA board has a circular pattern and has 15 LED lights.

[0011] The utility model discloses a rear triangular window welcome light structure for an automobile. The light guide plate and the PCBA board are fixed to the base by three self-tapping screws, and the PCBA board is arranged beside the light guide plate. The internal structure of the base is simple and easy to open the mold, and can be reliably installed and fixed on the motor vehicle. The PCBA board assembly (LED) uses 15 LEDs in this solution, and the PCBA board is connected to the vehicle body domain controller through a wiring harness. When the car door is opened, the body domain controller controls the LED light to turn on, thereby turning on the atmosphere light of the car welcome pedal and door sill, which plays a role of welcoming guests. The LED side light on the PCBA board illuminates the light guide plate. The base is provided with a slot for the sealant plug. The wiring harness assembly is connected to the PCBA board. The light guide plate is located between the base and the two-color mask. The light guide plate is made of PMMA translucent material to improve the efficiency of light use. Under the condition of equal area luminous brightness, the luminous efficiency is high and the power consumption is low. After assembly, the base and the two-color mask are fixed by ultrasonic welding. The two-color mask uses a two-color injection molding process. One color is PC milky white material sprayed with high gloss black, and the other color is PC+ABS black material. The round light is integrated with the rear triangular window. After spraying, the pattern is laser engraved to achieve the appearance lighting effect. The welcome light structure has a compact structure and a small size. It is more beautiful than the traditional mounting plate installation method, which solves the problem of high cost of installing the existing welcome light on the door or rearview mirror through the mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0013] Figure 1 The utility model is an exploded view of a welcome light structure for a rear triangular window of an automobile.

[0014] Figure 2 It is a schematic diagram of a new two-color mask of the present invention.

[0015] Figure 3 This is a schematic diagram of the connection between the new two-color mask, light guide plate, PCBA board and base.

[0016] Figure 4 The utility model is a schematic diagram of a welcome light structure for a rear triangular window of an automobile.

[0017] In the figure: 1-two-color mask, 2-light guide plate, 3-PCBA board, 4-base, 5-self-tapping screws, 6-sealing glue plug, 7-ventilation component, 8-wiring harness assembly, 9-insert bolts. DETAILED DESCRIPTION

[0018] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0019] See also Figures 1 to 4 The utility model provides a car rear triangular window welcome light structure, including a two-color mask 1, a light guide plate 2, a PCBA board 3, a base 4, a self-tapping screw 5, a wiring harness assembly 8 and an insert bolt 9;

[0020] The PCBA board 3 is arranged in the base 4, the light guide plate 2 is arranged on the top of the PCBA board 3, the two-color mask 1 is arranged on the side of the light guide plate 2 away from the PCBA board 3, the self-tapping screw 5 is threadedly connected to the base 4 and passes through the light guide plate 2 and the PCBA board 3, the wiring harness assembly 8 is connected to the PCBA board 3 and passes through the base 4, and the insert bolt 9 is threadedly connected to the base 4 and passes through the base 4.

[0021] In this embodiment, the light guide plate 2 and the PCBA board 3 are fixed on the base 4 by three self-tapping screws 5, and the PCBA board 3 is arranged beside the light guide plate 2. The internal structure design of the base 4 is simple and easy to open the mold, and can be reliably installed and fixed on the motor vehicle body. The PCBA board 3 assembly (LED), 15 LEDs are used in this solution, and the PCBA board 3 is connected to the body domain controller through a wiring harness. When the car door is opened, the body domain controller controls the LED light to turn on, thereby turning on the car's welcome pedal and door sill atmosphere lights, which plays a welcoming lighting role. The LED side light on the PCBA board 3 illuminates the light guide plate 2. The base 4 is provided with a slot for the sealant plug 6. The wiring harness assembly 8 is connected to the PCBA board 3. The light guide plate 2 is located between the base 4 and the two-color mask 1. The light guide plate 2 is made of PMMA translucent material to improve the efficiency of light use. Under the condition of equal area luminous brightness, the luminous efficiency is high and the power consumption is low. After assembly, the base 4 and the two-color mask 1 are fixed by ultrasonic welding. The process used for the two-color mask 1 is two-color injection molding. One color is PC milky white material sprayed with high-gloss black, and the second color is PC+ABS black material. The round light is integrated with the rear triangular window. After spraying, the pattern laser engraving realizes the appearance lighting effect, which solves the problem of high cost of existing welcome lights installed on car doors or rearview mirrors through mounting plates.

[0022] Furthermore, the automobile rear triangular window welcome light structure further includes a sealing plug 6 , which is arranged on one side of the base 4 .

[0023] In this embodiment, the sealing plug 6 utilizes the elastic deformation of its material to fill or block the gap between the two joint surfaces, thereby achieving a sealing effect.

[0024] Furthermore, the automobile rear triangular window welcome light structure also includes a ventilation component 7, and the ventilation component 7 is arranged at the bottom of the base 4.

[0025] In this embodiment, the ventilation component 7 is used to reduce fogging of the lamp. Effective ventilation can significantly reduce fogging, reducing it by up to 50%. The universal installation method reduces the complexity of product design, ensures reliable performance, and reduces testing costs.

[0026] The above disclosure is only a preferred embodiment of the structure of the welcome light for the rear quarter window of an automobile of the present application, and it cannot be used to limit the scope of the rights of the present application. A person skilled in the art can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. A car rear triangular window welcome light structure, characterized in that: Includes two-color mask, light guide plate, PCBA board, base, self-tapping screws, wiring harness assembly and insert bolts; The PCBA board is arranged in the base, the light guide plate is arranged on the top of the PCBA board, the two-color mask is arranged on the side of the light guide plate away from the PCBA board, the self-tapping screw is threadedly connected to the base and passes through the light guide plate and the PCBA board, the wiring harness assembly is connected to the PCBA board and passes through the base, and the insert bolt is threadedly connected to the base and passes through the base.

2. The automobile rear quarter window welcome light structure according to claim 1, characterized in that: It also includes a sealing plug, which is arranged on one side of the base.

3. The automobile rear quarter window welcome light structure according to claim 1, characterized in that: It also includes a breathable component, which is arranged at the bottom of the base.

4. The automobile rear quarter window welcome light structure according to claim 1, characterized in that: The light guide plate is made of PMMA light-transmitting material.

5. The automobile rear quarter window welcome light structure according to claim 1, characterized in that: The PCBA board has a circular pattern and has 15 LED lights.