Vehicle interior atmosphere lamp assembly

Abstract

The utility model provides a vehicle interior atmosphere lamp assembly. The vehicle interior atmosphere lamp assembly solves the problem that an existing vehicle interior atmosphere lamp assembly cannot meet the requirements for brightness and uniformity of surface atmosphere light. The vehicle interior atmosphere lamp assembly comprises a panel with an atmosphere light area, a light guide plate matched with the panel in shape is arranged on the inner side of the panel, a PCB is arranged on the inner side of the light guide plate, one long edge end of the light guide plate is bent towards the side of the PCB in an arc mode to form a bent part, and a plurality of LEDs right opposite to the end face of the bent part are arranged on the PCB. The LEDs are arranged in a single row in the length direction of the end face of the bent part. The LEDs are designed on the edge of the inner side of the light guide plate, the number of the LEDs can be effectively controlled, the requirements for brightness and uniformity of surface atmosphere light are met, meanwhile, cost is saved, and products are made to be more commercial and competitive.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile interior decoration, and relates to a vehicle interior decoration atmosphere lamp component. Background Art

[0002] People have higher and higher requirements for the personalization of vehicle interiors, and ambient lights are increasingly used in vehicle interiors. The LEDs in traditional ambient lights are set just below the light guide plate, which has the following problems: ① There needs to be a certain space inside the product to arrange the PCB. When the product surface is an irregular arc, the distance from the LED to the product surface is different, resulting in poor uniformity of ambient light; ② The LEDs are arranged in a matrix, and the number of LEDs used is large, which will increase the number of driver chips and lead to high costs.

[0003] To this end, a Chinese patent discloses a vehicle interior atmosphere light [application publication number is CN 111692576A], which includes a PCB board and a light guide plate. The PCB board has a light-emitting LED. When the LED is lit, the light is transmitted through the light guide plate and, under the mirror reflection of the bracket, is diffused through a diffusion film and then illuminates the area on the exterior surface that needs to be illuminated.

[0004] Since the LED is located at the end of the long side of the light guide plate, when the LED is turned on, the light moves along the length of the light guide plate. The light movement path is long, and the brightness of the ambient light far away from the LED side is severely attenuated, and its uniformity cannot meet the requirements. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the prior art and to propose a vehicle interior atmosphere light assembly that meets the requirements of surface atmosphere light brightness and uniformity.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A vehicle interior ambient light assembly includes a panel with an ambient light area, a light guide plate conforming to the panel is provided on the inner side of the panel, a PCB is provided on the inner side of the light guide plate, one of the long sides of the light guide plate is bent in an arc shape toward the PCB side to form a bending portion, a plurality of LEDs are provided on the PCB and are arranged opposite to the end face of the bending portion, and the plurality of LEDs are arranged in a single row along the length direction of the end face of the bending portion.

[0008] The bending part is an arc-shaped bend with good light conductivity. The light emitted by the LED enters the light guide plate through the end face of the bending part, and then moves along the width direction of the light guide plate. Its movement path is short and the brightness attenuation is small. At the same time, multiple LEDs are arranged in a single row along the length direction of the end face of the bending part, so that the ambient light area emits ambient light with uniform brightness.

[0009] The panel is made of translucent PC material. The ambient light area on the outer surface is designed with a translucent pattern, and the area outside the ambient light area is an opaque pattern.

[0010] The light guide plate is made of pure transparent PC material.

[0011] In the above-mentioned vehicle interior ambient light assembly, the inner side surface of the light guide plate is provided with a plurality of light guide points which are arc-shaped and concave outward. The size and position of the light guide points are determined according to optical analysis, and the light entering from the end surface of the bent portion is diffused through the light guide points to achieve uniformity of the ambient light backlight source.

[0012] In the above vehicle interior ambient light assembly, a diffusion film is attached to the inner surface of the panel. Light entering from the end surface of the bent portion is diffused by the light guide point, so that the light is evenly hit on the diffusion film, achieving uniformity of the ambient light backlight source.

[0013] In the above-mentioned vehicle interior atmosphere light assembly, a rear shell is provided on the inner side of the panel, the PCB is fixed in the rear shell, a bracket for supporting a light guide plate is provided in the rear shell, the bracket has a mating surface conformally arranged to the inner surface of the light guide plate, the mating surface is mirror-polished, and the light guide plate is located between the bracket and the panel.

[0014] When the light entering the light guide plate hits the mating surface, the mirror-polished mating surface reflects the light, thereby increasing the brightness of the light. The back shell wraps the PCB, LED and light guide plate to protect them. The bracket is made of white opaque material.

[0015] In the above vehicle interior ambient light assembly, the rear shell has a light shielding portion arranged around the bracket, the light shielding portion is close to or against the panel, and the light guide plate is located inside the light shielding portion. The light shielding portion can prevent the internal light source from leaking out from the edge of the product.

[0016] In the above vehicle interior atmosphere lamp assembly, the end surface of the bent portion is parallel to the PCB. The light emitted by the LED can enter the light guide plate vertically.

[0017] In the above-mentioned vehicle interior ambient light assembly, the outer surface of the light guide plate and the end surface of the bent portion are mirror-polished to enhance the brightness of the light.

[0018] In the above-mentioned vehicle interior ambient light assembly, the LED is a three-color LED.

[0019] The LED on the PCB emits light, which is diffused through the light guide points of the light guide plate. At the same time, with the help of the matching mirror, a backlight source with good uniformity and high brightness is obtained on the surface of the diffusion film through the light guide plate and the diffusion film, and then illuminates the inner side of the panel. Through the light-transmitting pattern of the translucent material, an ambient light with uniform brightness is achieved on the surface.

[0020] Compared with the existing technology, the vehicle interior atmosphere light assembly has the following advantages: the light guide plate is set to be L-shaped, the shape of the light guide plate is determined by the special-shaped curved surface of the panel, and the gap with the panel is uniform after assembly. The LED is designed on the inner edge of the light guide plate, which can effectively control the number of LEDs to meet the requirements of surface atmosphere light brightness and uniformity, while achieving cost savings and making the product more commercial and competitive. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional view of the vehicle interior ambient light assembly.

[0022] Figure 2 It is a structural schematic diagram of a light guide plate.

[0023] In the figure, 1. decorative part; 2. panel; 21. ambient light area; 3. diffusion film; 4. light guide plate; 41. bending part; 42. light guide point; 5. bracket; 6. PCB; 7. back cover; 71. light blocking part; 8. LED. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] like Figure 1 The vehicle interior atmosphere lamp assembly shown in the figure comprises a rear shell 7 and a panel 2 which is buckled with the rear shell 7. The rear shell 7 has a ring-shaped light shielding portion 71, which is close to or against the panel 2 to prevent the internal light source from leaking out from the edge of the product. Figure 1 As shown, a decorative piece 1 is provided at one of the long side ends of the rear shell 7 and the panel 2 .

[0026] like Figure 1 As shown, an ambient light area 21 is provided in the middle of the panel 2, and a light-transmitting pattern is designed in the ambient light area 21, and an area outside the ambient light area 21 is a non-light-transmitting pattern. A diffusion film 3 is attached to the inner surface of the panel 2, and a light guide plate 4 conforming to the panel 2 is provided on the inner side of the diffusion film 3, and a PCB 6 fixed on the rear shell 7 is provided on the inner side of the light guide plate 4, as shown in FIG. Figure 1 and Figure 2 As shown, one of the long sides of the light guide plate 4 is bent in an arc shape toward the PCB 6 to form a bent portion 41, and a plurality of LEDs 8 are arranged on the PCB 6 to face the end face of the bent portion 41, and the plurality of LEDs 8 are arranged in a single row along the length direction of the end face of the bent portion 41. The panel 2 is made of a translucent PC material, and the light guide plate 4 is made of a pure transparent PC material.

[0027] The bending portion 41 is an arc-shaped bend with good light conductivity. The light emitted by LED 8 enters the light guide plate 4 through the end face of the bending portion 41, and then moves along the width direction of the light guide plate 4. Its movement path is short and the light brightness attenuation is small. At the same time, multiple LEDs 8 are arranged in a single row along the length direction of the end face of the bending portion 41, so that the ambient light area 21 emits ambient light with uniform brightness.

[0028] like Figure 1 and Figure 2 As shown, the inner side surface of the light guide plate 4 is provided with a plurality of light guide points 42 that are arc-shaped and concave outward. The size and position of the light guide points 42 are determined based on optical analysis, and the light entering from the end surface of the bending portion 41 is diffused through the light guide points 42 to achieve uniformity of the ambient light backlight source. The light entering from the end surface of the bending portion 41 is diffused through the light guide points 42, so that the light is evenly hit on the diffusion film 3, achieving uniformity of the ambient light backlight source.

[0029] In order to position the light guide plate 4, as shown in FIG. Figure 1 As shown, a bracket 5 for supporting the light guide plate 4 is provided in the rear shell 7. The bracket 5 has a mating surface that is conformally arranged with the inner surface of the light guide plate 4, and the mating surface is mirror-polished. When the light entering the light guide plate 4 is irradiated on the mating surface, the mirror-polished mating surface reflects the light, thereby increasing the brightness of the light. The rear shell 7 wraps the PCB 6, LED 8 and the light guide plate 4 inside to protect them. The bracket 5 is made of white opaque material.

[0030] In order to make the light emitted by LED8 enter the light guide plate 4 vertically, Figure 1 As shown, the end surface of the bent portion 41 is parallel to the PCB 6. In order to improve the brightness, the outer surface of the light guide plate 4 and the end surface of the bent portion 41 are mirror-polished.

[0031] In this embodiment, LED 8 is a three-color LED.

[0032] During assembly, the diffusion film 3 is assembled to the inner surface of the panel 2, the light guide plate 4 is assembled with the bracket 5, and then assembled with the PCB 6 to form a light guide component subassembly, the subassembly is assembled with the panel 2, and finally the rear shell 7 is assembled.

[0033] LED 8 on PCB 6 emits light, which is diffused through light guide point 42 of light guide plate 4. At the same time, with the effect of the matching mirror, a backlight source with good uniformity and high brightness is obtained on the surface of diffusion film 3 through light guide plate 4 and diffusion film 3, and illuminates the inner side of panel 2. Through the light-transmitting pattern of translucent material, ambient light with uniform brightness is realized on the surface.

[0034] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A vehicle interior atmosphere light assembly, characterized in that: The invention comprises a panel (2) having an ambient light area (21), a light guide plate (4) arranged conformally to the panel (2) being provided on the inner side of the panel (2), a PCB (6) being provided on the inner side of the light guide plate (4), one of the long sides of the light guide plate (4) being bent in an arc shape toward the PCB (6) to form a bent portion (41), a plurality of LEDs (8) being arranged on the PCB (6) and facing the end face of the bent portion (41), and the plurality of LEDs (8) being arranged in a single row along the length direction of the end face of the bent portion (41).

2. The vehicle interior atmosphere lamp assembly according to claim 1, characterized in that: The inner side surface of the light guide plate (4) is provided with a plurality of light guide points (42) which are arc-shaped and concave outwards.

3. The vehicle interior atmosphere lamp assembly according to claim 1, characterized in that: A diffusion film (3) is attached to the inner surface of the panel (2).

4. The vehicle interior atmosphere lamp assembly according to claim 1, characterized in that: A rear shell (7) is provided on the inner side of the panel (2), the PCB (6) is fixed in the rear shell (7), a bracket (5) for supporting the light guide plate (4) is provided in the rear shell (7), the bracket (5) has a mating surface that is conformally arranged with the inner surface of the light guide plate (4), the mating surface is mirror-polished, and the light guide plate (4) is located between the bracket (5) and the panel (2).

5. The vehicle interior atmosphere lamp assembly according to claim 4, characterized in that: The rear shell (7) has a light shielding portion (71) arranged around the bracket (5), the light shielding portion (71) is close to or against the panel (2), and the light guide plate (4) is located on the inner side of the light shielding portion (71).

6. The vehicle interior atmosphere lamp assembly according to claim 1, characterized in that: The end surface of the bent portion (41) is parallel to the PCB (6).

7. The vehicle interior atmosphere lamp assembly according to claim 1, characterized in that: The outer surface of the light guide plate (4) and the end surface of the bent portion (41) are mirror-polished.

8. The vehicle interior atmosphere lamp assembly according to claim 1, characterized in that: The LED (8) is a three-color LED.

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