Panel with lamp and light leakage prevention structure
By using a two-color injection-molded panel body and a closed light-blocking structure, the problem of light leakage caused by the peeling of the light-blocking coating is solved, achieving better light-blocking effect and light leakage prevention.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HUAWEI CUBIC PRINTING CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-17
AI Technical Summary
The light-blocking coating on existing automotive panels is prone to peeling off, resulting in poor light-blocking performance and a lack of effective light-leakage prevention structures.
The panel body is made of two-color injection molding, with an inner light-shielding panel and an outer transparent panel. The inner light-shielding panel has a light-transmitting window and a light-shielding enclosure structure. Combined with the light-shielding cover and light guide plate, it forms a closed light-shielding structure to ensure that light is only vented through the light-transmitting window.
It improves the light-blocking effect, prevents light from leaking out of the light-transmitting window, and enhances the light-leakage prevention.
Smart Images

Figure CN224135728U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, specifically to a panel with lights. Background Technology
[0002] As people's demands for car interiors gradually increase, more and more car models are adding a large number of ambient lights inside the vehicle.
[0003] Chinese patent CN212746341U discloses an ambient light panel with a concealed appearance, comprising a panel body. The outer surface of the panel body is covered with a light-transmitting decorative coating, and the inner surface of the panel body is covered with a light-shielding coating. The light-shielding coating has perforations that allow light to enter the panel body. This structure achieves light shielding in areas where no light emission is required through the light-shielding coating. However, if the light-shielding coating peels off, the light-shielding effect will be affected.
[0004] Currently, there is a lack of a light-leakage prevention structure suitable for automotive panels that can replace light-shielding coatings. Utility Model Content
[0005] In view of the problems existing in the prior art, this utility model provides a lamp panel with a light leakage prevention structure to solve at least one of the above technical problems.
[0006] To achieve the above objectives, this utility model provides a light-emitting panel with a light-proof structure, comprising a panel body, characterized in that the panel body is a two-color injection molded panel body, and the panel body includes an inner light-shielding panel and an outer transparent panel disposed inside and outside.
[0007] The inner light-shielding panel has a light-transmitting window, and a light-shielding enclosure structure is connected to the inner light-shielding panel. The light-shielding enclosure structure includes an inner light-shielding enclosure formed along the outer contour of the light-transmitting window and an open outer light-shielding enclosure. The two ends of the outer light-shielding enclosure are connected to the inner light-shielding enclosure.
[0008] The height of the inner shading enclosure is greater than the height of the outer shading enclosure;
[0009] It also includes a light-shielding cover plate, which is provided with a groove for installing the light-emitting component. The outer contour of the groove is located outside the light-shielding enclosure structure. The groove is detachably connected to the panel body to form a receiving cavity for accommodating the light-emitting component.
[0010] The light-emitting component includes a light guide plate, a light-emitting base is fixed on one side of the light guide plate, a light-emitting circuit board is installed in the light-emitting base, and the light-emitting direction of the light-emitting circuit board is towards the light guide plate;
[0011] The light guide plate is located between the light-shielding cover and the inner light-shielding enclosure.
[0012] This utility model combines an inner light-blocking barrier and an outer light-blocking barrier to improve the light-blocking effect and ensure light leakage prevention.
[0013] More preferably, at least three positioning posts are fixed inside the groove, and positioning holes for inserting the positioning posts are provided on the light guide plate;
[0014] The groove is fixedly connected to the light guide plate by hot-melting the positioning post.
[0015] More preferably, the light-shielding cover plate has a recessed portion for embedding the light-emitting base.
[0016] It facilitates the positioning and installation of the light-emitting base.
[0017] More preferably, an arc-shaped light guide portion is provided on the side of the light-emitting base that connects to the light guide plate;
[0018] The LEDs on the light-emitting circuit board are directly facing the arc-shaped light guide.
[0019] More preferably, the light-emitting base includes a mounting groove with one end open and a cover, and a limiting post and a guide post are fixed to the inner wall of the mounting groove. The guide post is used to slide into the light-emitting circuit board.
[0020] The outer edge of the light-emitting circuit board is provided with a positioning notch for embedding the guide post;
[0021] The cover is fixed with a support foot, and the light-emitting circuit board is clamped between the support foot and the limiting post.
[0022] More preferably, the inner light-shielding panel is fixed with a positioning seat and a mounting seat, and the mounting seat is provided with a blind hole;
[0023] The light-shielding cover is connected to an extension, and the extension is provided with at least one of a positioning hole and a mounting hole.
[0024] The positioning hole is inserted into the positioning seat, and the panel body is connected to the light-shielding panel by bolts passing through the mounting hole and the blind hole.
[0025] More preferably, there are four mounting bases and two positioning bases, with each positioning base having one mounting base adjacent to it;
[0026] The extension is provided in four parts. Two of the four extensions are provided with the positioning hole and the mounting hole, and the other two extensions are provided with the mounting hole.
[0027] More preferably, the thickness of the inner and outer light-shielding barriers is 0.7 mm, and the height of the outer light-shielding barrier is 2 mm.
[0028] Compared with the prior art, the beneficial effects of this utility model are:
[0029] This invention enables the light emitted by the light-emitting circuit board to be directed out through the light-transmitting window, thus preventing light leakage from other areas outside the light-transmitting window. Attached Figure Description
[0030] Figure 1 This is an exploded view of a specific embodiment 1 of the present utility model;
[0031] Figure 2 This is a schematic diagram of a specific embodiment 1 of the present utility model;
[0032] Figure 3 This is an exploded view of a specific embodiment 1 of the present invention, showing the light-emitting component and the light-shielding cover.
[0033] Figure 4 This is a schematic diagram of a structure of the light-emitting component and the light-shielding cover plate in a specific embodiment of the present invention.
[0034] Figure 5 This is an exploded view of the inner light-shielding panel and the outer transparent panel of a specific embodiment of the present invention;
[0035] Figure 6 This is a schematic diagram of the combined state of the inner light-shielding panel and the outer transparent panel in specific embodiment 1 of this utility model;
[0036] Figure 7 This is a partial structural schematic diagram of the light-emitting component in specific embodiment 1 of this utility model;
[0037] Figure 8 This is a schematic diagram of the structure of the cap in specific embodiment 1 of this utility model;
[0038] Figure 9 This is a cross-sectional view of specific embodiment 1 of the present utility model.
[0039] In the diagram: 1 is the inner light-shielding panel, 2 is the outer transparent panel, 4 is the light-shielding cover, 11 is the light-transmitting window, 12 is the inner light-shielding enclosure, 13 is the outer light-shielding enclosure, 14 is the positioning seat, 15 is the mounting seat, 3 is the light-emitting component, 31 is the light guide plate, 32 is the mounting groove, 33 is the cover, 34 is the light-emitting circuit board, 41 is the extension, 42 is the mounting hole, and 43 is the positioning hole. Detailed Implementation
[0040] The present invention will be further described below with reference to the accompanying drawings.
[0041] See Figures 1 to 9 Specific Embodiment 1: A light-emitting panel with a light-leakage prevention structure includes a panel body, which is a two-color injection-molded panel body. The panel body includes an inner light-shielding panel 1 and an outer transparent panel 2 disposed inside and outside. A light-transmitting window 11 is opened on the inner light-shielding panel 1, and a light-shielding enclosure structure is connected to the inner light-shielding panel 1. The light-shielding enclosure structure includes an inner light-shielding enclosure 12 formed along the outer contour of the light-transmitting window 11 and an open outer light-shielding enclosure 13. The two ends of the outer light-shielding enclosure 13 are connected to the inner light-shielding enclosure 12. The height of the inner light-shielding enclosure 12 is... The height is greater than that of the outer light-shielding enclosure 13; it also includes a light-shielding cover plate 4, which has a groove 44 for installing the light-emitting component 3. The outer contour of the groove 44 is located outside the light-shielding enclosure structure. The groove 44 is detachably connected to the panel body to form a cavity for accommodating the light-emitting component 3. The light-emitting component 3 includes a light guide plate 31, and a light-emitting base is fixed on one side of the light guide plate 31. A light-emitting circuit board 34 is installed in the light-emitting base, and the light-emitting direction of the light-emitting circuit board 34 is towards the light guide plate 31. The light guide plate 31 is located between the light-shielding cover plate 4 and the inner light-shielding enclosure 12. This utility model, through the combination of the inner light-shielding enclosure 12 and the outer light-shielding enclosure 13, facilitates the improvement of the light-shielding effect and ensures the prevention of light leakage. The inner light-shielding enclosure 12 is connected to the outer light-shielding enclosure to form a closed structure that encloses the U-shaped area of the inner light-shielding enclosure.
[0042] The inner light-shielding enclosure includes two parallel inclined baffles that slope towards the light-emitting base from the outer transparent panel side to the light guide plate side.
[0043] At least three positioning posts are fixed inside the groove 44, and the light guide plate 31 has positioning holes 43 for inserting the positioning posts; the groove 44 is fixedly connected to the light guide plate 31 by hot-melt positioning posts.
[0044] The light-shielding cover 4 has a recessed portion for embedding the light-emitting base. This facilitates the positioning and installation of the light-emitting base.
[0045] An arc-shaped light guide is provided on one side of the light-emitting base connected to the light guide plate 31; the LED on the light-emitting circuit board 34 faces the arc-shaped light guide. The side of the light guide plate 31 near the light-shielding cover is coated with a reflective coating.
[0046] The light-emitting base includes a mounting groove 32 with one open end and a cover 33. A limiting post and a guide post are fixed to the inner wall of the mounting groove 32. The guide post is used to slide into the light-emitting circuit board 34. A positioning notch for embedding the guide post is provided on the outer edge of the light-emitting circuit board 34. A support foot is fixed to the cover 33, and the light-emitting circuit board 34 is clamped between the support foot and the limiting post. A notch is provided on the mounting groove for leading out the wires connecting to the light-emitting circuit board. A notch is provided on the light-shielding cover for leading out the wires. The notch is located on the side of the light-shielding cover away from the light-transmitting window.
[0047] The inner light-shielding panel 1 is fixed with a positioning seat 14 and a mounting seat 15, and the mounting seat 15 has a blind hole. The light-shielding cover plate 4 is connected with an extension 41, and the extension 41 has at least one of a positioning hole 43 and a mounting hole 42. The positioning hole 43 is inserted into the positioning seat 14, and the panel body and the light-shielding panel are connected by bolts passing through the mounting hole 42 and the blind hole. There are four mounting seats 15 and two positioning seats 14, and each positioning seat 14 is adjacent to a mounting seat 15. There are four extensions 41, two of which have positioning holes 43 and mounting holes 42, and the other two extensions 41 have mounting holes 42.
[0048] The thickness of the inner light-blocking enclosure 12 and the outer light-blocking enclosure 13 is 0.7 mm, and the height of the outer light-blocking enclosure 13 is 2 mm.
[0049] The main panel can be a car control panel. The inner light-shielding panel 1 can be a black ABS plastic panel. The light guide plate 31 is made of transparent PC material. The light-emitting base is made of transparent PC material. The cover 33 is made of black light-shielding material.
[0050] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A lighted panel having a light leakage prevention structure, comprising a panel main body, characterized by, The panel body is a two-color injection molded panel body, which includes an inner light-shielding panel and an outer transparent panel. The inner light-shielding panel has a light-transmitting window, and a light-shielding enclosure structure is connected to the inner light-shielding panel. The light-shielding enclosure structure includes an inner light-shielding enclosure formed along the outer contour of the light-transmitting window and an open outer light-shielding enclosure. The two ends of the outer light-shielding enclosure are connected to the inner light-shielding enclosure. The height of the inner shading enclosure is greater than the height of the outer shading enclosure; It also includes a light-shielding cover plate, which is provided with a groove for installing the light-emitting component. The outer contour of the groove is located outside the light-shielding enclosure structure. The groove is detachably connected to the panel body to form a receiving cavity for accommodating the light-emitting component. The light-emitting component includes a light guide plate, a light-emitting base is fixed on one side of the light guide plate, a light-emitting circuit board is installed in the light-emitting base, and the light-emitting direction of the light-emitting circuit board is towards the light guide plate; The light guide plate is located between the light-shielding cover and the inner light-shielding enclosure.
2. A light-emitting panel with a light-leakage prevention structure according to claim 1, characterized in that: At least three positioning posts are fixed inside the groove, and positioning holes for inserting the positioning posts are provided on the light guide plate. The groove is fixedly connected to the light guide plate by hot-melting the positioning post.
3. The panel with lamp according to claim 1, characterized in that: The light-shielding cover plate has a recessed portion for embedding the light-emitting base.
4. The panel with light according to claim 1, characterized in that: An arc-shaped light guide is provided on one side of the light-emitting base that is connected to the light guide plate; The LEDs on the light-emitting circuit board are directly facing the arc-shaped light guide.
5. The panel with light according to claim 1, characterized in that: The light-emitting base includes a mounting groove with one end open and a cover. The inner wall of the mounting groove is fixed with a limiting post and a guide post. The guide post is used to slide into the light-emitting circuit board. The outer edge of the light-emitting circuit board is provided with a positioning notch for embedding the guide post; The cover is fixed with a support foot, and the light-emitting circuit board is clamped between the support foot and the limiting post.
6. The back lightable panel with a light leakage prevention structure according to claim 1, characterized in that: The inner light-shielding panel is fixed with a positioning seat and a mounting seat, and the mounting seat is provided with a blind hole; The light-shielding cover is connected to an extension, and the extension is provided with at least one of a positioning hole and a mounting hole. The positioning hole is inserted into the positioning seat, and the panel body is connected to the light-shielding panel by bolts passing through the mounting hole and the blind hole.
7. The back lightable panel with a light leakage prevention structure according to claim 6, characterized in that: There are four mounting bases and two positioning bases, with each positioning base having one mounting base adjacent to it. The extension is provided in four parts. Two of the four extensions are provided with the positioning hole and the mounting hole, and the other two extensions are provided with the mounting hole.
8. The back lightable panel with a light leakage prevention structure according to claim 1, characterized in that: The thickness of the inner and outer light-blocking barriers is 0.7 mm, and the height of the outer light-blocking barrier is 2 mm.
Citation Information
Patent Citations
Atmosphere lamp panel with hidden appearance and atmosphere lamp
CN212746341U