Luminous ornament

Abstract

The utility model relates to a luminous ornament, including shell, light guide skeleton, light-transmitting skin and light source, light guide skeleton is fixed outside the shell, light-transmitting skin is fixed outside the light guide skeleton, light guide skeleton is formed by light guide plate and skeleton through bicolor injection molding, the skeleton of light guide skeleton is fixed with the shell, and the light source is fixed on the light guide skeleton. The light source is used for emitting light to the light guide plate of the light guide framework, and the light guide plate is used for conducting light so that the light can penetrate through the light-transmitting skin and be emitted outwards. According to the light-emitting ornament, the light guide framework is formed by the light guide plate and the framework in a double-face injection molding mode and fixed to the shell through the framework, the light guide plate does not make contact with the shell, and therefore noise caused by mutual friction between the light guide plate and the shell is avoided.

Description

Technical Field

[0001] This utility model relates to the field of vehicle trim technology, and more specifically to a luminous trim. Background Technology

[0002] With the development of intelligent technology, vehicles are increasingly featuring illuminated decorative elements to enhance their appearance. For example... Figure 1 and Figure 2 As shown, the existing luminous decorative component includes a housing 10, a light guide plate 20, a frame 30, a translucent skin 40, and a light source 50. The housing 10, the light guide plate 20, the frame 30, and the translucent skin 40 are fixed sequentially from the inside to the outside. The light source 50 is fixed on the light guide plate 20. The light emitted by the light source 50 passes through the light guide plate 20 and then sequentially through the frame 30 and the translucent skin 40, causing the translucent skin 40 to display a luminous effect of a preset pattern.

[0003] However, the light guide plate 20 of the existing light-emitting decorative parts needs to be fixed to the housing 10, and the light guide plate 20 is usually made of polymethyl methacrylate, which is prone to friction noise when it is matched with the housing 10. Utility Model Content

[0004] The purpose of this utility model is to provide a light-emitting decorative component that integrates a light guide plate and a frame into one piece, so that the light guide plate does not need to be fixed to the housing and thus avoids noise generation.

[0005] To achieve the above objectives, this utility model provides a luminous decorative component, comprising a housing, a light guide frame, a light-transmitting outer skin, and a light source. The light guide frame is fixed to the outside of the housing, and the light-transmitting outer skin is fixed to the outside of the light guide frame. The light guide frame is formed by two-color injection molding of a light guide plate and a frame. The frame of the light guide frame is fixed to the housing. The light source is used to emit light to the light guide plate of the light guide frame, and the light guide plate is used to conduct light so that the light passes through the light-transmitting outer skin and radiates outward.

[0006] Furthermore, the light guide plate has a plurality of optical microstructures on its inner surface. The light emitted by the light source is set to be incident on the light guide plate along the length direction. The light guide plate is used to transmit the light along the length direction in the light guide plate. After passing through the optical microstructures, the light changes its transmission direction and is emitted from the outer surface of the light guide plate.

[0007] Furthermore, the density of the optical microstructure gradually increases along the direction away from the light source.

[0008] Furthermore, a reflective medium is provided on the inner surface of the light guide plate, which is used to reflect light into the light guide plate.

[0009] Furthermore, the outer surface of the light guide plate is provided with a light-transmitting medium, the refractive index of the light-transmitting medium is less than the refractive index of the light guide plate, and the difference between the refractive index of the light guide plate and the refractive index of the light-transmitting medium is greater than or equal to 0.1.

[0010] Furthermore, the light guide frame is fixed to the light-transmitting skin by an adhesive layer, and the adhesive layer is only disposed on the frame of the light guide frame.

[0011] Furthermore, the light source includes a circuit board and a plurality of LEDs, each LED being fixed on the circuit board and spaced apart along the width direction of the light guide plate.

[0012] Furthermore, the light guide plate has an inner receiving groove, the circuit board is fixed to the inner side of the light guide plate, and each LED is located in the receiving groove.

[0013] Furthermore, there are multiple light sources, which are spaced apart along the length of the light guide plate.

[0014] Furthermore, the translucent skin has a preset pattern so that light passing through the translucent skin forms a luminous effect of the preset pattern.

[0015] The light-emitting decorative component of this utility model has a light guide frame formed by double-sided injection molding of a light guide plate and a frame. The frame is fixed to the shell, and the light guide plate does not contact the shell, thus avoiding noise caused by mutual friction between the light guide plate and the shell. The inner side of the light guide plate is provided with multiple optical microstructures, so that the light guide plate can guide light laterally and transmit light longitudinally. By gradually increasing the density of the optical microstructures in the direction away from the light source, the uniformity of light emission can be improved. The outer surface of the light guide plate is provided with a light-transmitting medium with a refractive index less than that of the light guide plate and a difference between the two greater than or equal to 0.1, thereby improving the uniformity of light emission. The frame of the light guide frame is fixed to the light-transmitting skin by an adhesive layer. There is no adhesive layer between the light guide plate and the light-transmitting skin, thus avoiding the adhesive layer affecting the light transmittance of the light guide plate. Attached Figure Description

[0016] Figure 1 An exploded view of an existing luminous decorative element;

[0017] Figure 2 A cross-sectional view of an existing luminous decorative element;

[0018] Figure 3 An exploded view of the luminous decorative element according to an embodiment of the present utility model;

[0019] Figure 4 This is a cross-sectional view of the luminous decorative element according to an embodiment of the present utility model;

[0020] Figure 5This is a cross-sectional view of the light-emitting decorative element according to an embodiment of the present invention when the light guide frame is formed in a concave shape;

[0021] Figure 6 This is a cross-sectional view of the light-emitting decorative element according to an embodiment of the present invention when the light guide frame is formed in a planar shape;

[0022] Figure 7 This is a cross-sectional view of the light-emitting decorative element according to an embodiment of the present invention when the light guide frame is formed in a convex shape;

[0023] Figure 8 A schematic diagram of a prism-shaped concave optical microstructure according to an embodiment of the present invention;

[0024] Figure 9 A schematic diagram of a prism-shaped protrusion-like optical microstructure according to an embodiment of the present invention;

[0025] Figure 10 A schematic diagram of a circular concave optical microstructure according to an embodiment of the present invention;

[0026] Figure 11 This is a schematic diagram of a circular protrusion-shaped optical microstructure according to an embodiment of the present invention;

[0027] Figure 12 This is a schematic diagram of a light guide frame with a reflective medium installed according to an embodiment of the present invention. Detailed Implementation

[0028] The preferred embodiments of this utility model are given below with reference to the accompanying drawings and described in detail.

[0029] like Figure 3 and Figure 4As shown, this utility model embodiment provides a luminous decorative component, including a housing 100, a light guide frame 200, a light-transmitting skin 300, and a light source 400. The light guide frame 200 is fixed to the outside of the housing 100, and the light-transmitting skin 300 is fixed to the outside of the light guide frame 200. The light guide frame 200 is formed by two-color injection molding of a light guide plate 210 and a frame 220. The frame 220 of the light guide frame 200 is fixed to the housing 100. The light source 400 is disposed between the light guide frame 200 and the housing 100 and fixed to the inside of the light guide frame 200. It is used to emit light through the light guide plate 210 of the light guide frame 200. The light guide plate 210 is used to conduct light so that the light can pass through the light-transmitting skin 300 and radiate outward, thereby forming a cool luminous effect. Since the light guide plate 210 and the frame 220 are integrally formed by injection molding, and the light guide frame 200 is fixed to the housing 100 through the frame 220, the light guide plate 210 does not need to be fixed to the housing 100. Therefore, abnormal noise caused by friction between the light guide plate 210 and the housing 100 can be avoided. Furthermore, by integrating the light guide plate 210 and the frame 220, the thickness of the light-emitting decorative element can be reduced. For example, the thickness of existing light-emitting decorative elements is t1 = 8.3 mm (see...). Figure 2 Furthermore, the thickness of the luminous decorative element of this invention can be reduced to t2 = 5.5 mm (see [reference]). Figure 4 (), a decrease of approximately 34%.

[0030] like Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments, light emitted from the light source 400 is incident on the light guide plate 210 along the X-direction (i.e., the length direction of the light guide plate 210) and can be continuously reflected between the inner and outer surfaces of the light guide plate 210, thereby achieving lateral light transmission. Multiple optical microstructures 212 are provided on the inner surface of the light guide plate 210. When light passes through the optical microstructures 212, its transmission direction can be changed, and it can exit from the outer surface of the light guide plate 210. Light that does not pass through the optical microstructures 212 is transmitted along the length direction within the light guide plate 210. Therefore, the light guide plate 210 can achieve both lateral light guiding and longitudinal (i.e., the Z-direction, which is also the thickness direction of the light guide plate 210) light transmission. Figures 5-7 In the diagram, red dots represent optical microstructures 212, red lines represent light transmitted laterally, and green arrows represent light emitted from the outer surface of the light guide plate 210 after passing through the optical microstructures 212. The shape of the light guide frame 200 can be set as needed, for example, formed as... Figure 5 The concave shape in the cross-section means that both the upper and lower surfaces are concave; or it is formed as... Figure 6 In a cross-sectional view, the planar shape means that both the upper and lower surfaces are planar; or it is formed as... Figure 7 The convex shape in the cross section means that both the upper and lower surfaces are convex.

[0031] In some embodiments, the shape of the optical microstructure 212 can be configured as needed, for example, formed as shown in the figure. Figure 8 The prism-shaped concave dots shown, or formed as... Figure 9 The prism-shaped protrusions shown, or formed as... Figure 10 The circular concave shape shown, or formed as... Figure 11 The circular bumps shown are visible.

[0032] In some embodiments, the uniformity of light emission can be adjusted by adjusting the density of the optical microstructures 212. For example, fewer optical microstructures 212 can be set at a position closer to the light source 400, while more optical microstructures 212 can be set at a position farther away from the light source 100. That is, the density of the optical microstructures 212 gradually increases in the direction away from the light source 400, thereby improving the uniformity of light emission.

[0033] like Figure 12 As shown, in some embodiments, a reflective medium 230 may be provided on the inner surface of the light guide plate 210. The reflective medium 230 is used to reflect light into the light guide plate 210, preventing light from escaping from the inner surface of the light guide plate 210, thereby improving light efficiency and uniformity. In the figure, the red lines represent the light transmitted within the light guide plate 210, and the green lines represent the light that will pass through the outer surface of the light guide plate 210 and be emitted outward after passing through the optical microstructure 212. The reflective medium includes, but is not limited to, reflective films and reflective coatings.

[0034] In some embodiments, the outer surface of the light guide plate 210 may be provided with a light-transmitting medium, wherein the refractive index of the light guide plate 210 is greater than the refractive index of the light-transmitting medium, and the difference between the two is greater than or equal to 0.1. The light-transmitting medium includes, but is not limited to, adhesive, light-transmitting film, light-transmitting coating, etc.

[0035] In some embodiments, the light guide frame 200 can be fixed to the light-transmitting skin 300 by an adhesive layer 500, and the adhesive layer 500 is sprayed on the frame 220 but not on the light guide plate 210. In this way, the adhesive layer 500 will not be sprayed on the outer surface of the light guide plate 210, which can avoid the adhesive layer 500 from affecting the light transmission effect of the light guide plate 210. For example, the light guide plate 210 can be located in the middle region of the light guide frame 200, while the frame 220 is located in the edge region of the light guide frame 200 and surrounds the light guide plate 210. The adhesive layer 500 is only sprayed on the frame 220 and surrounds the light guide plate 210, so that the light guide frame 200 is bonded to the light-transmitting skin 300 only through the frame 220. There will be no adhesive layer 500 between the light guide plate 210 and the light-transmitting skin 300, thus avoiding its impact on the light transmission effect. Since the light guide plate 210 is located in the middle region, the light transmission area is also located in the middle region, which can achieve a better light emission effect.

[0036] In some embodiments, the light source 400 may be disposed at one end of the light guide plate 210 in the X direction, so that light emitted by the light source 400 is incident into the light guide plate 210 from the end of the light guide plate 210 in the X direction. The light source 400 may include a circuit board 420 and a plurality of LEDs 410. The plurality of LEDs 410 are fixed on the circuit board 420 so that the circuit board 420 supplies power to the LEDs 410 and drives the LEDs 410 to light up or turn off. The LEDs 410 are arranged at intervals along the Y direction (i.e., the width direction of the light guide plate 210) so that each LED 410 is incident into the light guide plate 210 in the X direction at different positions of the light guide plate 210.

[0037] In some embodiments, the inner side of the light guide plate 210 may be provided with a receiving groove 211 for accommodating each LED lamp 410. Specifically, the circuit board 420 may be fixed to the inner side of the light guide plate 210, and each LED lamp 410 is located in the receiving groove 211 to emit light to the light guide plate 210.

[0038] In some embodiments, there may be multiple light sources 400, and each light source 400 is uniformly arranged along the X direction, so that the light source 400 can emit light to the light guide plate 210 at different positions in the X and Y directions at the same time, which can improve the light intensity and the uniformity of the light.

[0039] In some embodiments, the translucent skin 300 may be partially translucent and have a preset pattern, so that when light passes through the translucent skin 300, a luminous effect of the preset pattern can be formed. The translucent skin 300 includes, but is not limited to, perforated skin, IML (In-Mold Injection Molding) film, INS (In-Injection Molding) film, translucent wood grain, etc.

[0040] In this embodiment of the luminous decorative component, the light guide frame 200 is formed by double-sided injection molding of the light guide plate 210 and the frame 220, and is fixed to the housing 100 by the frame 220. The light guide plate 210 does not contact the housing 100, thereby avoiding noise caused by mutual friction between the light guide plate 210 and the housing 100. The inner side of the light guide plate 210 is provided with a plurality of optical microstructures 212, so that the light guide plate 210 can guide light laterally and transmit light longitudinally. By making the optical microstructures 212 The density of light guide plates gradually increases in the direction away from the light source 400, which can improve the uniformity of light emission. The outer surface of the light guide plate 210 is provided with a light-transmitting medium with a refractive index less than that of the light guide plate and a difference between the two greater than or equal to 0.1, thereby improving the uniformity of light emission. The skeleton 220 of the light guide frame 200 is fixed to the light-transmitting skin 300 by an adhesive layer 500. There is no adhesive layer 500 between the light guide plate 210 and the light-transmitting skin 300, so as to avoid the adhesive layer 500 affecting the light transmittance of the light guide plate 210.

[0041] It should be noted that the present invention (e.g., a utility model concept, etc.) has been described in the specification and / or illustrated in the figures of this patent document according to exemplary embodiments; the embodiments of the present invention are presented by way of example only and are not intended to limit the scope of the present invention. The structure and / or arrangement of the elements of the utility model concept embodied in the present invention as described in the specification and / or illustrated in the figures are merely illustrative. Although exemplary embodiments of the present invention have been described in detail in this patent document, it will be readily understood by those skilled in the art that equivalents, modifications, variations, etc., of the subject matter of the exemplary and alternative embodiments are possible and are considered to be within the scope of the present invention; all such subject matter (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. It should also be noted that various modifications, variations, substitutions, equivalents, alterations, omissions, etc., may be made in the configuration and / or arrangement of the exemplary embodiments (e.g., in terms of concept, design, structure, device, form, assembly, construction, means, function, system, process / method, steps, sequence of process / method steps, operation, operating conditions, performance, materials, composition, combination, etc.) without departing from the scope of this utility model; all such subject matter (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) is intended to be included within the scope of this utility model. The scope of this utility model is not intended to be limited to the subject matter (e.g., details, structure, function, materials, behavior, steps, sequence, system, result, etc.) described in the specification and / or figures of this patent document. Considering that the claims of this patent document will be properly interpreted to cover the full scope of the subject matter of this utility model (e.g., including any and all such modifications, variations, embodiments, combinations, equivalents, etc.); it should be understood that the terminology used in this patent document is for the purpose of providing a description of the subject matter of exemplary embodiments and not as a limitation on the scope of this utility model.

[0042] It should also be noted that, according to exemplary embodiments, the present invention may include conventional techniques (e.g., techniques implemented and / or integrated in exemplary embodiments, modifications, variations, combinations, equivalents, etc.), or may include any other applicable techniques (now and / or in the future) with the ability to perform the functions and processes / operations described in the specification and / or illustrated in the figures. All such techniques (e.g., techniques implemented in the manner of embodiments, modifications, variations, combinations, equivalents, etc.) are considered to be within the scope of the present invention in this patent document.

Claims

1. A luminous decorative element, characterized in that, The device includes a housing, a light guide frame, a light-transmitting skin, and a light source. The light guide frame is fixed to the outside of the housing, and the light-transmitting skin is fixed to the outside of the light guide frame. The light guide frame is formed by two-color injection molding of a light guide plate and a frame. The frame of the light guide frame is fixed to the housing. The light source is used to emit light to the light guide plate of the light guide frame. The light guide plate is used to conduct light so that the light passes through the light-transmitting skin and radiates outward.

2. The luminous decorative element according to claim 1, characterized in that, The light guide plate has multiple optical microstructures on its inner surface. The light emitted by the light source is set to be incident on the light guide plate along the length direction. The light guide plate is used to transmit the light along the length direction in the light guide plate. After passing through the optical microstructures, the light changes its transmission direction and is emitted from the outer surface of the light guide plate.

3. The luminous decorative element according to claim 2, characterized in that, The density of the optical microstructure gradually increases in the direction away from the light source.

4. The luminous decorative element according to claim 1, characterized in that, The inner surface of the light guide plate is provided with a reflective medium, which is used to reflect light into the light guide plate.

5. The luminous decorative element according to claim 1, characterized in that, The outer surface of the light guide plate is provided with a light-transmitting medium, the refractive index of the light-transmitting medium is less than the refractive index of the light guide plate, and the difference between the refractive index of the light guide plate and the refractive index of the light-transmitting medium is greater than or equal to 0.

1.

6. The luminous decorative element according to claim 1, characterized in that, The light guide frame is fixed to the light-transmitting skin by an adhesive layer, and the adhesive layer is only disposed on the frame of the light guide frame.

7. The luminous decorative element according to claim 1, characterized in that, The light source includes a circuit board and multiple LEDs, each LED being fixed on the circuit board and spaced apart along the width direction of the light guide plate.

8. The luminous decorative element according to claim 7, characterized in that, The light guide plate has a receiving groove on its inner side, the circuit board is fixed on the inner side of the light guide plate, and each LED is located in the receiving groove.

9. The luminous decorative element according to claim 1, characterized in that, There are multiple light sources, which are spaced apart along the length of the light guide plate.

10. The luminous decorative element according to claim 1, characterized in that, The translucent skin has a preset pattern so that light passing through the translucent skin forms a luminous effect of the preset pattern.

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