Automobile luminous decorative part

Abstract

The present invention provides an automotive luminous decorative part, comprising a light-transmitting substrate having a light-transmitting viewing portion and a receiving cavity, wherein the light-transmitting viewing portion is located above the receiving cavity; a plurality of raised portions and supporting portions are provided on both side walls of the receiving cavity along the length direction, with a mounting area formed between the supporting portion and the raised portions; a decorative plate disposed within the mounting area; a first heat dissipation cavity formed between the decorative plate and the light-transmitting substrate; a light-transmitting bottom plate mounted below the decorative plate; a second heat dissipation cavity formed between the light-transmitting bottom plate and the decorative plate; and a light-emitting component mounted below the light-transmitting bottom plate. By providing a spacing between the decorative plate, the light-transmitting viewing portion, and the light-transmitting bottom plate, the first and second heat dissipation cavities are formed, and the refraction line of the light is more divergent, effectively reducing the generation of marks and the visual effect of blurring the marks, thereby making the automotive luminous decorative part more beautiful and ornamental when illuminated.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile decorations, and in particular to an automobile luminous decoration. Background Art

[0002] More and more automotive interior parts are integrated with optical lighting designs. Large decorative surfaces inside the car, including door panels, auxiliary instrument panels and instrument panels, door panel decorative strips, sunroofs, doors, door handles, etc., all have luminous functions. When not enabled, they appear as surface textures, and when enabled, they can display patterns to meet the user's pursuit of visual experience.

[0003] An existing automobile interior decoration part includes a light-transmitting substrate and a decorative panel. The decorative panel and the light-transmitting substrate are bonded together, so that when the automobile interior decoration part is illuminated, marks due to the bonding between the panels appear, affecting the aesthetics. Summary of the Invention

[0004] The main purpose of the present invention is to provide a car luminous decorative part, aiming to effectively solve the problem in the prior art that the car luminous decorative part shows marks after being illuminated.

[0005] In order to achieve the above object, the technical solutions of the present invention are:

[0006] The present invention provides an automobile luminous decorative part, comprising:

[0007] A light-transmitting substrate having a light-transmitting viewing portion and a receiving cavity, wherein the light-transmitting viewing portion is located above the receiving cavity; a plurality of raised portions and supporting portions are provided on both side walls of the receiving cavity along the length direction, the raised portions protruding from top to bottom, the supporting portions being located below the raised portions, and a mounting area being formed between the supporting portions and the raised portions;

[0008] a decorative plate disposed in the mounting area, wherein the upper surface of the decorative plate abuts against the raised portion, and the lower surface of the decorative plate abuts against the supporting portion; a first heat dissipation cavity is formed between the decorative plate and the light-transmitting substrate;

[0009] A light-transmitting bottom plate is installed below the decorative plate to seal the lower side of the accommodating cavity; a second heat dissipation cavity is formed between the light-transmitting bottom plate and the decorative plate;

[0010] The light-emitting component is installed below the light-transmitting bottom plate, and the light emitted by the light-emitting component is diffused outward through the light-transmitting bottom plate and the light-transmitting substrate.

[0011] Compared with the prior art, the present invention provides an automobile luminous decorative part, which has a first heat dissipation cavity and a second heat dissipation cavity formed therein, which can promote sufficient heat dissipation inside the automobile luminous decorative part, avoid the heat emitted by the luminous components causing deformation of the decorative panel, and effectively reduce the situation where the decorative panel is squeezed on the raised part due to thermal expansion and causes marks; and the decorative panel and the translucent viewing part and the translucent bottom plate are all spaced apart. Compared with the surface contact setting that is in contact with each other, the refraction line of the light is more divergent, thereby blurring the visual effect of the mark, making the automobile luminous decorative part more beautiful and more ornamental when it is illuminated.

[0012] In a preferred embodiment, the accommodating cavity is arranged in a stepped cavity, and the accommodating cavity includes a first cavity and a second cavity from top to bottom; wherein the cross-sectional size of the light-transmitting viewing portion is the same as the cross-sectional size of the first cavity; there is a stepped transition surface between the second cavity and the first cavity, and the protrusion is arranged on the stepped transition surface.

[0013] In a preferred embodiment, the protrusions and the supporting portions at the head end and the tail end of the accommodating cavity are aligned; the other protrusions and the supporting portions are staggered.

[0014] In a preferred embodiment, the height of the first heat dissipation cavity is greater than the height of the second heat dissipation cavity.

[0015] In a preferred embodiment, the height of the supporting portion is equal to the height of the second heat dissipation cavity.

[0016] In a preferred embodiment, L=1 mm; H / W=10%-35%; wherein L is the minimum length of the protrusion, W is the maximum length of the protrusion, H is the height of the protrusion, and the protrusion is a bilaterally symmetrical structure.

[0017] In a preferred embodiment, the protrusion has arc segments on two opposite sides along the length direction.

[0018] In a preferred embodiment, after the decorative panel is installed, the contact between the protrusion and the decorative panel is point contact or line contact.

[0019] In a preferred embodiment, the contact between the supporting portion and the decorative panel is surface contact.

[0020] In a preferred embodiment, two opposite sides of the supporting portion have chamfers.

[0021] For better understanding and implementation, the present invention is described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 It is a cross-sectional schematic diagram of the automotive luminous decorative part of the present invention;

[0024] Figure 2 Schematic diagram of the structure of the light-transmitting substrate of the present invention;

[0025] Figure 3 yes Figure 2 A magnified view of middle A;

[0026] Figure 4 is a side cross-sectional view of the light-transmitting substrate of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the raised portion of the present invention.

[0028] Description of reference numerals:

[0029] 100—light-transmitting substrate, 110—light-transmitting viewing portion, 120—accommodating cavity, 121—first concave cavity, 122—second concave cavity, 123—step transition surface, 130—raised portion, 131—arc-shaped segment, 140—supporting portion, 141—guide angle, 150—installation area, 200—decorative panel, 300—light-transmitting bottom plate, 400—light-emitting component, 500—housing, 600—first heat dissipation cavity, 700—second heat dissipation cavity. DETAILED DESCRIPTION

[0030] In order to better illustrate the present invention, the present invention is described in further detail below with reference to the accompanying drawings.

[0031] It should be clear that the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the embodiments of the present application.

[0032] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present application. The singular forms "a," "the," and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0033] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0034] In the description of the present invention, it should be understood that the terms "vertical", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection content of the present invention.

[0035] Combine Figures 1 to 5 As shown, the present invention provides an automotive luminous decorative part, comprising:

[0036] The light-transmitting substrate 100 comprises a light-transmitting viewing portion 110 and a receiving cavity 120. The light-transmitting viewing portion 110 is located above the receiving cavity 120. A plurality of raised portions 130 and supporting portions 140 are spaced apart on the longitudinal side walls of the receiving cavity 120. The raised portions 130 protrude downward, and the supporting portions 140 are located below the raised portions 130. A mounting area 150 is formed between the supporting portions 140 and the raised portions 130.

[0037] A decorative plate 200 is disposed in the mounting area 150 , with the upper surface of the decorative plate 200 abutting against the raised portion 130 , and the lower surface of the decorative plate 200 abutting against the supporting portion 140 ; ​​a first heat dissipation cavity 600 is formed between the decorative plate 200 and the light-transmitting substrate 100 ;

[0038] A light-transmitting bottom plate 300 is installed below the decorative plate 200 to seal the lower side of the accommodating cavity 120; a second heat dissipation cavity 700 is formed between the light-transmitting bottom plate 300 and the decorative plate 200;

[0039] The light emitting component 400 is installed below the light-transmitting bottom plate 300 . The light emitted by the light emitting component 400 is diffused outward through the light-transmitting bottom plate 300 and the light-transmitting substrate 100 .

[0040] Compared with the prior art, the present invention provides an automotive luminous decorative part, which has a first heat dissipation cavity 600 and a second heat dissipation cavity 700 formed therein, which can promote sufficient heat dissipation inside the automotive luminous decorative part, avoid the heat emitted by the luminous component 400 causing deformation of the decorative panel 200, and effectively reduce the situation where the decorative panel 200 squeezes the raised portion 130 due to thermal expansion and causes marks; and the decorative panel 200 and the translucent viewing portion 110 and the translucent bottom plate 300 are all spaced apart. Compared with the mutually fitted surface contact setting, the refraction line of the light is more divergent, thereby blurring the visual effect of the mark, making the automotive luminous decorative part more beautiful and more ornamental when it is illuminated.

[0041] In one embodiment, a texture film is pasted on the upper surface of the decorative panel 200, and the texture film has a base color and a texture pattern. The light-transmitting ornamental portion 110 has a texture structure, wherein the texture structure of the light-transmitting ornamental portion 110 is a three-dimensional structure with multiple rhombus-shaped diamonds distributed in an alternating manner, and the three-dimensional structure is processed on the upper surface of the accommodating cavity 120. Due to the refraction effect of the three-dimensional structure with staggered distribution of rhombus diamonds on light, when the light-emitting component 400 is not emitting light, most of the external light is reflected by the rhombus three-dimensional structure, and the decorative panel 200 displays the texture structure of the light-transmitting viewing portion 110 and the background color of the texture film, and the texture pattern of the texture film cannot be seen; when the light-emitting component 400 is emitting light, light is emitted from the inside of the automobile light-emitting decorative part, and the texture pattern of the texture film is refracted by the light and passes through the light-transmitting viewing portion, and the decorative panel 200 displays the texture pattern of the texture film and the texture structure of the light-transmitting viewing portion 110. Compared with the existing automobile light-emitting interior parts that display a single texture pattern when emitting light, the present invention can not only display the texture structure of the light-transmitting viewing portion 110, but also display the texture pattern of the texture film, with a better visual effect.

[0042] In the present invention, compared with the existing automobile interior decoration parts that expose the texture film, the decorative panel 200 is set in the accommodating cavity 120 of the light-transmitting substrate 100, which effectively prevents scratches and helps protect the texture film on the upper surface of the decorative panel 200; the texture structure of the light-transmitting substrate 100 is set on the surface of the accommodating cavity 120, which also helps protect the texture structure from scratches; effectively improving the service life of the automobile luminous decorative parts.

[0043] In one embodiment, the accommodating cavity 120 is arranged in a stepped cavity, and the accommodating cavity 120 includes a first cavity 121 and a second cavity 122 from top to bottom; wherein, the cross-sectional size of the light-transmitting viewing portion 110 is the same as the cross-sectional size of the first cavity 121; a stepped transition surface 123 is provided between the second cavity 122 and the first cavity 121, and the raised portion 130 is provided on the stepped transition surface 123, so that the raised portion 130 is located outside the range of the light-transmitting viewing portion 110, and under the orthographic projection vision, the outer periphery of the decorative panel 200 coincides with the stepped transition surface 123, and the stepped transition surface 123 is farther away from the light-transmitting substrate 100. The farther the distance, the better the visual effect of the blurred imprint, and the light of the divergent imprint needs to pass through the medium of the light-transmitting substrate 100 before it can diverge to the outside of the light-transmitting substrate 100, effectively reducing the probability of the user seeing the imprint.

[0044] In one embodiment, the raised portion 130 and the supporting portion 140 located at the head and tail ends of the accommodating cavity 120 are aligned to serve as a positioning guide; the other raised portions 130 and the supporting portions 140 are staggered to avoid the decorative panel 200 being affected by the raised portion 130 and the supporting portion 140 at the same vertical position at the same time. On the one hand, it prevents the decorative panel 200 from being locally deformed at this position and causing the user to see an imprint; on the other hand, it prevents the decorative panel 200 from being locally deformed at this position and causing the local thickness of the decorative panel 200 to increase, making the decorative panel 200 difficult to assemble and disassemble.

[0045] In one embodiment, when the light-emitting component 400 dissipates heat, it first passes through the second heat dissipation cavity 700, and then conducts the heat through the decorative panel 200 to the first heat dissipation cavity 600. Therefore, the temperature of the decorative panel 200 is greater than the temperature of the surface of the light-transmitting substrate 100. The present invention sets the height of the first heat dissipation cavity 600 to be greater than the height of the second heat dissipation cavity 700, which is beneficial for keeping the decorative panel 200 away from the surface of the light-transmitting substrate 100, reducing the heat conduction of the temperature of the decorative panel 200 to the surface temperature of the light-transmitting substrate 100, and thereby reducing the surface temperature of the light-transmitting substrate 100, thereby effectively preventing users from getting burned when touching the surface of the light-transmitting substrate 100.

[0046] In one embodiment, the height of the supporting portion 140 is equal to the height of the second heat dissipation cavity 700 . The height of the supporting portion 140 is used as the height of the second heat dissipation cavity 700 , which is easy to design.

[0047] In one embodiment, if Figure 5As shown, L = 1mm; H / W = 10%-35%; where L is the minimum length of the protrusion 130, W is the maximum length of the protrusion 130, and H is the height of the protrusion 130. The protrusion 130 is bilaterally symmetrical. H / W can be 10%, 12.5%, 15%, 20%, 25%, 30%, or 35%. After repeated testing with different data, L was fixed at 1mm. H / W is preferably within the range of 15%-25%, with H being optimally selected as 0.5. In actual machining, the protrusion has an arc at the corner due to the action of the tool. The influence of this arc on the experimental results is negligible.

[0048] The table contains experimental data of W and H at different values.

[0049]

[0050]

[0051] In one embodiment, the protrusion 130 has arc sections 131 on two opposite sides along the length direction to guide the installation and removal of the decorative panel 200, thereby facilitating the installation and removal of the decorative panel 200.

[0052] In one embodiment, after the decorative plate 200 is installed, the contact between the protrusion 130 and the decorative plate 200 is point contact or line contact, so as to reduce the contact between the protrusion 130 and the decorative plate 200 and facilitate heat dissipation.

[0053] In one embodiment, the contact between the supporting portion 140 and the decorative panel 200 is surface contact, the supporting portion 140 is located on the back of the decorative panel 200, and the decorative panel 200 is not light-transmissive, and the user cannot see the supporting portion 140 through the light-transmissive decorative panel 200. Therefore, the present invention can appropriately enlarge the surface connecting the supporting portion 140 and the decorative panel 200, so that the contact between the supporting portion 140 and the decorative panel 200 is surface contact, so that the supporting portion 140 can better support the decorative panel 200. Compared with point contact / line contact, the surface contact between the supporting portion 140 and the decorative panel 200 makes the decorative panel 200 less likely to bend and deform.

[0054] In one embodiment, the supporting portion 140 has chamfers 141 on opposite sides thereof to guide the installation and removal of the decorative panel 200 , thereby facilitating the installation and removal of the decorative panel 200 .

[0055] In one embodiment, the automobile luminous decorative part also includes a shell 500, the top of the shell 500 has an open opening, the translucent substrate 100, the decorative panel 200, the translucent bottom plate 300 and the luminous component 400 are all installed in the shell 500, and the translucent viewing portion 110 is arranged corresponding to the open opening. The shell 500 is used to package the translucent substrate 100, the decorative panel 200, the translucent bottom plate 300 and the luminous component 400, so that the automobile luminous decorative part is assembled into a whole, which is easy to install. The side or bottom of the shell 500 is provided with a removable sealing plate to facilitate assembly and disassembly.

[0056] Furthermore, a third heat dissipation cavity is formed between the housing and the light-transmitting bottom plate for further heat dissipation, and the light-emitting component is arranged in the third heat dissipation cavity.

[0057] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications of the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims of the present invention and equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A car luminous decorative part, characterized in that: include: A light-transmitting substrate having a light-transmitting viewing portion and a receiving cavity, wherein the light-transmitting viewing portion is located above the receiving cavity; a plurality of raised portions and supporting portions are provided on both side walls of the receiving cavity along the length direction, the raised portions protruding from top to bottom, the supporting portions being located below the raised portions, and a mounting area being formed between the supporting portions and the raised portions; a decorative plate disposed in the mounting area, wherein the upper surface of the decorative plate abuts against the raised portion, and the lower surface of the decorative plate abuts against the supporting portion; a first heat dissipation cavity is formed between the decorative plate and the light-transmitting substrate; A light-transmitting bottom plate is installed below the decorative plate to seal the lower side of the accommodating cavity; a second heat dissipation cavity is formed between the light-transmitting bottom plate and the decorative plate; The light-emitting component is installed below the light-transmitting bottom plate, and the light emitted by the light-emitting component is diffused outward through the light-transmitting bottom plate and the light-transmitting substrate.

2. The automotive luminous decorative part according to claim 1, characterized in that: The accommodating cavity is arranged in a stepped cavity, and the accommodating cavity includes a first cavity and a second cavity from top to bottom; wherein, The cross-sectional size of the light-transmitting viewing portion is the same as the cross-sectional size of the first concave cavity; A stepped transition surface is provided between the second cavity and the first cavity, and the protrusion is provided on the stepped transition surface.

3. The automotive luminous decorative part according to claim 1 or 2, characterized in that: The protrusions and the supporting portions at the head and tail ends of the accommodating cavity are aligned; The other protrusions are staggered with the supporting portion.

4. The automotive luminous decorative part according to claim 1, characterized in that: The height of the first heat dissipation cavity is greater than the height of the second heat dissipation cavity.

5. The automotive luminous decorative part according to claim 1, characterized in that: The height of the supporting portion is equal to the height of the second heat dissipation cavity.

6. The automotive luminous decorative part according to claim 1, characterized in that: L = 1 mm; H / W = 10% - 35%; Wherein, L is the minimum length of the protrusion, W is the maximum length of the protrusion, H is the height of the protrusion, and the protrusion is a bilaterally symmetrical structure.

7. The automotive luminous decorative part according to claim 1, characterized in that: The protrusion has arc sections on two opposite sides along the length direction.

8. The automotive luminous decorative part according to claim 1, characterized in that: After the decorative panel is installed, the contact between the protrusion and the decorative panel is point contact or line contact.

9. The automotive luminous decorative part according to claim 1, characterized in that: The contact between the supporting portion and the decorative panel is surface contact.

10. The automotive luminous decorative part according to claim 1, characterized in that: The supporting portion has chamfers on opposite sides.

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