Light-emitting vehicle logo light shading structure and light-emitting assembly adopting same

Abstract

The utility model discloses a light-emitting car logo light shading structure and a light-emitting assembly part adopting the light-emitting car logo light shading structure. The light-emitting car logo light shading structure at least comprises a light shading plate and a double-color mask. The double-color mask comprises a central transparent sheet and a mask black sheet surrounding the central transparent sheet from the periphery; the shading plate is provided with a hollowed-out belt according to the shape needing to be marked, the shading plate covers the central transparent piece, the hollowed-out belt and the central transparent piece are in zero-interval contact in the horizontal direction to form a light-proof structure, and the central transparent piece forms a car logo light-emitting area through the hollowed-out belt. Light leakage is avoided, the uniform effect of completely avoiding light leakage is achieved, and the more uniform light emitting effect can be achieved when the lamp is lightened.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a light-shielding structure for the non-light-emitting area of ​​a luminous vehicle logo light and a light-emitting assembly using the same structure. Background Technology

[0002] Typically, illuminated car logo lights require the non-illuminated areas to be covered on top of the illuminated cover to achieve the effect of illuminating only the illuminated area. Common techniques for covering the non-illuminated areas include: two-color injection molding of the cover, pad printing on the cover, laser engraving after spraying the cover with black paint, or adding other opaque structures to block light. Traditional car logo light designs will consider one of these covering methods based on factors such as the shape of the light fixture and the technical approach to achieve the desired illumination of the logo pattern. If an inappropriate covering scheme is not adopted, unnecessary light leakage or uneven illumination may occur during illumination.

[0003] Two-color injection molding of face masks involves using two materials, one of which is a black, opaque material used for light blocking. Its advantages include lower cost and better stability. The disadvantage is that the structure must meet injection molding requirements, and there may be gate residue.

[0004] Pad printing on a face mask involves transferring black, opaque ink onto a transparent face mask to achieve a light-blocking effect. Its advantages include a thin ink layer and flexible pattern coverage. Disadvantages include the requirement that the printing area be flat or slightly curved, and it cannot cover areas with steps or rounded corners.

[0005] Laser engraving after black paint spraying on a face mask refers to spraying a layer of black paint onto a transparent face mask and then using a laser to remove the black paint from the areas where light needs to pass through. Its advantage is that it is suitable for relatively complex patterns, but its disadvantages are higher cost and the inability to cover areas with steps or rounded corners.

[0006] Adding other structural components to block light is similar to two-color injection molding of a face mask. Its advantage is that it offers greater injection molding flexibility, but its disadvantage is that the assembly and fixing of parts need to be considered.

[0007] As attached Figure 1 The cross-section shown indicates that a gap exists after the luminous marker 3 and the light-shielding plate 4 are assembled, see attached document. Figure 2 The enlarged view of section C shows that this gap can cause light leakage. Furthermore, the structure did not consider the assembly gap between the top shell component 2 and the vehicle body components, which could also lead to light leakage. Utility Model Content

[0008] The technical problem to be solved by this utility model is to provide a light-shielding structure for a light-emitting car logo light and a light-emitting assembly using the same, so as to avoid light leakage and achieve a uniform effect of no light leakage, and to achieve a more uniform light-emitting effect when lit.

[0009] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0010] A light-shielding structure for an luminous vehicle logo light, characterized in that:

[0011] It should include at least a sunshade and a two-tone face mask;

[0012] The two-tone mask includes a central transparent sheet and a black sheet surrounding the central transparent sheet from the outside;

[0013] The light shield is marked with a perforated strip as needed. The light shield covers the central transparent sheet, and the perforated strip and the central transparent sheet are in zero-gap contact in the horizontal direction to form an opaque structure. The central transparent sheet forms the car logo luminous area through the perforated strip.

[0014] In the above technical solution, the outer periphery of the black mask sheet is fixed to the vehicle body environmental parts by a gap assembly method.

[0015] In the above technical solution, the black sheet of the mask is in the shape of an outer ring and is made of black opaque material.

[0016] In the above technical solution, the central transparent sheet is made of a ring-shaped light-transmitting material.

[0017] In the above technical solution, multiple light-shielding plates are set up, and the light-shielding plates are assembled according to the markings to form a light-leaking strip, which is set on the central transparent sheet to form the car logo light-emitting area.

[0018] In the above technical solution, each light-shielding plate and the central transparent sheet are in zero-gap contact to form an opaque structure.

[0019] In the above technical solution, the two-color mask is made by two-color injection molding.

[0020] In the above technical solution, the central transparent sheet is a stepped structural component, and the light-shielding sheet is embedded in the recessed holes between the steps.

[0021] A light-emitting assembly, characterized by employing the aforementioned light-shielding structure for a light-emitting vehicle logo light.

[0022] The beneficial effects of this utility model are:

[0023] Most illuminated car logo lights employ a light-blocking scheme for non-illuminated areas. The effectiveness of different schemes is influenced by factors such as structure and shape. Poorly designed blocking structures can result in ineffective light blocking, affecting the uniformity of illumination and visual appeal.

[0024] This invention employs two light-blocking solutions for the mask. First, the central light-emitting area uses an independent light-blocking component. Utilizing the soft material of the light-blocking plate, the structure achieves zero assembly gap, ensuring excellent light-blocking performance. Second, by disassembling the mask structure into two-color injection molding, the surrounding black material precisely and reliably blocks light, maintaining excellent light-blocking performance even after assembly with vehicle body components. This solves the problem of light leakage and improves the uniformity of product illumination. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0026] Figure 1 This is a cross-sectional view of the existing technology of the car logo light-shielding connector.

[0027] Figure 2 yes Figure 1 A magnified view of a portion of C.

[0028] Figure 3 This is a structural schematic diagram (explosion diagram) of the vehicle lighting fixture according to an embodiment of this utility model.

[0029] Figure 4 This is a front view of the dual-color mask of the luminous vehicle logo light shielding structure according to an embodiment of this utility model.

[0030] Figure 5 yes Figure 4 A cross-sectional view of the two-color face mask (AA).

[0031] Figure 6 This is a front view of the light-shielding structure of the luminous vehicle logo light according to an embodiment of this utility model.

[0032] Figure 7 yes Figure 6 BB cross-sectional view.

[0033] Figure 8 yes Figure 7 A magnified view of the structure of part A.

[0034] Figure 9 yes Figure 7 A magnified view of the structure of part B. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0036] Example 1

[0037] This invention protects the fact that when the entire vehicle logo light cover is illuminated, a portion of it achieves a uniform effect with no light leakage through an independent light-shielding component 2 in a zero-gap fit, thus achieving the effect of illuminating the logo. The other portion avoids the problem of light leakage caused by assembly gaps with environmental components through its own two-color injection molding.

[0038] like Figure 3-9 As shown, the light-shielding structure of this utility model's luminous vehicle logo light includes at least: a two-color mask 1, a light-shielding component 2, and a vehicle body environmental component 7. The two-color mask 1 uses two types of light-shielding structures:

[0039] ① Inside the luminous surface circle, the central circular luminous area 1-1 and the independent light-shielding component 2 are fitted together with zero gap to achieve a uniform effect of no light leakage.

[0040] ② Although there is an assembly gap between the outer ring or surrounding non-light-emitting areas 1-2 of the light-emitting area and the vehicle body environmental parts 7, the two-color injection molding structure of the two-color mask 1 itself can effectively block the light leakage area. Specifically:

[0041] The dual-color mask 1 is made using dual-color injection molding. The central circular luminescent area 1-1 is made of a material with a diffusion effect, while the surrounding non-luminescent areas 1-2 are made of black opaque material. Both can be PC or PMMA. The central circular area of ​​the mask has a raised step shape in cross-section. The top surface of the step is the luminescent area, while the side walls and bottom surface of the step are areas that do not need to be visible and also need to be shielded.

[0042] Figure 5 The cross-section of the dual-color mask 1 shows that the central circular light-emitting area 1-1 is made of a material with a diffusion effect. The top surface of the raised structure is the light-emitting area 8. Although the side walls and bottom surface also emit light, they are blocked after assembly with the light-shielding component 2 (see details). Figure 7 and Figure 8 The outer ring or non-light-emitting areas 1-2 around the mask are made of black opaque material, which does not emit light at all. After assembly with the vehicle body components, this ensures that no light leaks out through the assembly gaps (see details). Figure 9 ).

[0043] like Figure 5 and 7 As shown, three independent light-shielding plates 2 are set on the upper layer of the central circular light-emitting area 1-1 to achieve light shielding of the central circular light-emitting area 1-1 of the mask. The materials are black materials such as PC, ABS, and TES.

[0044] Independent light-shielding plate 2, installed on the dual-color mask 1-1, has zero gap with the mask after assembly and can block light in the central area (see...). Figure 8The vehicle body environmental component 7 is assembled with the luminous logo light assembly. After assembly, there is an assembly gap Δ in the area indicated by B. Effective light blocking can be achieved through the black areas of the face shield 1-2 (see...). Figure 9 ).

[0045] The light guide plate 3 is located below the mask 1. Through optical structure design, light is emitted from the light guide plate 3 and then illuminates the mask 1. The light guide plate 3 is made of a transparent material, such as PC, PMMA, or glass.

[0046] LED chips and electronic components are arranged on PCB board 4.

[0047] LED chip 5 is a side-emitting type, and except for the bottom surface which is soldered and fixed to the PCB board 4, the other 5 surfaces can emit light.

[0048] The lamp housing 6 is used to position the PCB board 4, the outer lens, and the light guide plate 3.

[0049] The illuminated car logo assembly is installed on the vehicle body environmental component 7.

[0050] The illuminated surface 8 of the car logo is patterned, featuring a combination of the Tedin car logo pattern and letters, such as the VM logo letter combination or the M logo combination in this embodiment.

[0051] The working principle is as follows:

[0052] The dual-color mask 1 is a dual-color injection molded part. The central circular area 1-1 is the main light-transmitting area, made of a light-diffusing material. The area exposed after the center of the mask is assembled with the three light-shielding plates 2 is the visible light-emitting area. The outer ring 1-2 of the mask is injection molded with a black opaque material and is a non-light-emitting area. Its main function is also to block light and prevent light from shining out from all sides, which would affect the lighting effect.

[0053] Side-emitting LED particles 5 are embedded in the middle of the light guide plate 3. The LED particles 5 emit light from all four sides, and the light enters the light guide plate 3. Through the special light-guiding pattern structure of the light guide plate 3, the light is irradiated from the thickness direction of the light guide plate 3, illuminating the central circular area of ​​the mask 1.

[0054] Since only the luminous surface 8 area of ​​the car logo needs to be lit, the mask 1 and three independent light shields 2 are fixed by heat riveting. The light shields 2 block the luminous area in the center of the mask 1, making it invisible.

[0055] To achieve optimal shading, the light shield 2 is designed using a soft material and fits the mask 1 with zero gap. This effectively prevents unnecessary light leakage from the mask 1, avoiding unevenness such as bright lines. See details... Figure 5 Cross-section description.

[0056] The luminous logo light assembly is mounted on the vehicle body environmental component 7. A natural assembly gap exists between the two. If a single-color translucent mask is used, light will inevitably leak through this gap, significantly reducing the uniformity of illumination. This design, however, uses black injection-molded material on the outer ring 1-2 of the mask as a shielding structure, perfectly solving the light leakage problem and improving the uniformity of illumination and the clarity of the logo.

[0057] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A light-shielding structure for a luminous vehicle logo light, characterized in that: It should include at least a sunshade and a two-tone face mask; The two-tone mask includes a central transparent sheet and a black sheet surrounding the central transparent sheet from the outside; The light shield is marked with a perforated strip as needed. The light shield covers the central transparent sheet, and the perforated strip and the central transparent sheet are in zero-gap contact in the horizontal direction to form an opaque structure. The central transparent sheet forms the car logo luminous area through the perforated strip.

2. The light-shielding structure for a luminous vehicle logo light according to claim 1, characterized in that: The outer edge of the black mask is fixed to the vehicle body components using a gap-fitting method.

3. The light-shielding structure for a luminous vehicle logo light according to claim 1, characterized in that: The black outer ring of the mask is made of black, opaque material.

4. The light-shielding structure for a luminous vehicle logo light according to claim 1, characterized in that: The central transparent sheet is made of a ring-shaped light-transmitting material.

5. The light-shielding structure for a luminous vehicle logo light according to claim 1, characterized in that: Multiple light-shielding plates are set up and assembled according to the markings to form a light-leaking strip, which is then placed on the central transparent sheet to form the car logo luminous area.

6. The light-shielding structure for a luminous vehicle logo light according to claim 1, characterized in that: Each light-shielding plate and the central transparent sheet are in zero-gap contact to form an opaque structure.

7. The light-shielding structure for a luminous vehicle logo light according to claim 1, characterized in that: The two-color face mask is made using two-color injection molding.

8. The light-shielding structure for a luminous vehicle logo light according to claim 1, characterized in that: The central transparent sheet is a stepped structural component, and the light-shielding sheet is embedded in the recessed holes between the steps.

9. A light-emitting assembly, characterized in that... The luminous vehicle logo light shielding structure described in any one of claims 1-8 is adopted.

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