Area light source atmosphere lamp and automobile

Abstract

The invention discloses an area light source atmosphere lamp and an automobile, and relates to the technical field of atmosphere lamps, the area light source atmosphere lamp comprises a reflective bottom shell and a decorative plate connected with the reflective bottom shell, light guide blocks are fixed to the two ends of the interior of the reflective bottom shell respectively, and the light guide blocks are connected with LED modules; a plurality of reflective protrusions are arranged in the area, between the light guide blocks at the two ends, of the reflective bottom shell. An expansion structure is formed from one end, connected with the LED module, of the light guide block to the other end of the light guide block; the LED module is provided with a single LED particle and is used for providing a point light source; and the point light source is reflected to the decorative plate through the light guide block and the reflective bulge in sequence to form an area light source. According to the atmosphere lamp, the light emitting width of light emitted by the LED module is enlarged through the light guide block, the area light source effect is achieved through the reflection effect of the light reflection bottom shell and the decoration plate, few LED particles are adopted, the machining difficulty is reduced, and therefore the cost of the atmosphere lamp is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of atmosphere lamps, and in particular to a surface light source atmosphere lamp and a car. Background Art

[0002] With the rapid popularization of automobiles, people have higher and higher requirements for the atmosphere of automobile interiors. At present, almost all newly released models have added the design of atmosphere lights to enhance the atmosphere and sense of technology of automobile interiors. Therefore, with the widespread use of automobile atmosphere lights, the manufacturing cost of atmosphere lights has received more and more attention.

[0003] Traditional surface light source atmosphere lamps are composed of multiple LEDs, which enter from one or both sides of the light guide plate. The light guide plate reflects the light emitted by the LED through tiny convex or concave points at the bottom to form a uniform luminous body. The light emitted by the light guide plate passes through the two-color injection molding panel decorated with IML film or translucent leather to achieve the surface light source atmosphere lamp effect. Due to the complex processing technology of the tiny convex or concave points of the surface light source light guide plate of the traditional solution, and the large number of LEDs, both increase the cost of the automotive atmosphere lamp. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a surface light source atmosphere lamp and a car. The light emitted by the LED module expands the luminous width through the light guide block, and forms a surface light source effect through the reflection of the reflective bottom shell and the decorative panel. Fewer LED particles are used, which reduces the processing difficulty, thereby reducing the cost of the atmosphere lamp.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In a first aspect, an embodiment of the present invention provides a surface light source atmosphere lamp, comprising a reflective bottom shell, and a decorative plate connected to the reflective bottom shell, wherein light guide blocks are respectively fixed at both ends of the inside of the reflective bottom shell, and the light guide blocks are connected to LED modules;

[0007] The reflective bottom shell is provided with a plurality of reflective protrusions in the area between the light guide blocks at both ends; the light guide block forms an expansion structure from one end connected to the LED module to the other end; the LED module has a single LED particle for providing a point light source; the point light source is reflected onto the decorative panel in turn through the light guide block and the reflective protrusions to form a surface light source.

[0008] As a further implementation, the size of the reflective protrusion located in the middle of the reflective bottom shell is larger than the size of the reflective protrusions at the two ends.

[0009] As a further implementation, one end of the light guide block is plugged into the LED module, and the connection position of the two corresponds to the light outlet hole of the LED module.

[0010] As a further implementation method, the light guide block and the LED module are fixed to the reflective bottom shell by buckles respectively.

[0011] As a further implementation manner, the light guide block has a triangular structure.

[0012] As a further implementation, the decorative plate is provided with a non-light-transmitting area and a light-transmitting area;

[0013] A covering layer is provided on the outer side of the decorative plate.

[0014] As a further implementation method, the reflective bottom shell is injection molded with highly reflective material.

[0015] As a further implementation manner, the light guide block is injection molded using highly transparent PMMA material.

[0016] As a further implementation, the LED module is connected to a wiring harness assembly.

[0017] In a second aspect, an embodiment of the present invention further provides a car equipped with the above-mentioned surface light source atmosphere lamp.

[0018] The beneficial effects of the present invention are as follows:

[0019] (1) The reflective bottom shell of the present invention is provided with a reflective raised area and is installed with a guide block. Light is emitted by a single LED particle of the LED module, and the light-emitting width is expanded by the light guide block. The light is transmitted to the surface of the reflective bottom shell through the light-emitting surface of the light guide block. The reflective raised areas on the surface of the reflective bottom shell reflect the light evenly onto the translucent decorative plate. The light passes through the translucent area of ​​the decorative plate to illuminate the pattern of the IML film or translucent leather, forming a surface light source effect. Compared with the processing of tiny raised or recessed points of traditional light guide plates, the raised structure of the reflective bottom shell of the present invention is easier to process, thereby reducing the production cost of the atmosphere lamp. At the same time, in terms of the light source, only a point light source needs to be provided by the LED module, thereby reducing the number of light source LEDs and further reducing the cost of the atmosphere lamp.

[0020] (2) The light guide block and LED module of the present invention are respectively fixed to the reflective bottom shell by buckles, which is convenient for disassembly and assembly, and can achieve stable connection, thereby preventing the light guide block and LED module from shaking and causing light changes.

[0021] (3) The reflective protrusions on the inner surface of the reflective bottom shell are distributed in an uneven manner, wherein the reflective protrusions at the two ends are smaller than the reflective protrusions in the middle area. The different sizes of the reflective protrusions can make the light reflected to the decorative panel more uniform.

[0022] (4) The light guide block of the present invention has a triangular structure and forms an expansion structure toward the inner side of the reflective shell body, which can change the light emitted by the LED module from a point light source to a narrow strip surface light source with a height of 5mm to 7mm. At the same time, the inclined surface at the tail of the light guide block changes the direction of the light and irradiates the light onto the reflective surface inside the reflective bottom shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0024] Figure 1 is an exploded view of a surface light source atmosphere lamp according to one or more embodiments of the present invention;

[0025] Figure 2 is an exploded view of a trim panel according to one or more embodiments of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of an LED module, a light guide block and a reflective bottom shell according to one or more embodiments of the present invention;

[0027] Figure 4 is a partial enlarged view of the LED module, light guide block and reflective bottom shell structure according to one or more embodiments of the present invention;

[0028] Figure 5 is an exploded view of an LED module and a light guide block according to one or more embodiments of the present invention;

[0029] Figure 6 is a cross-sectional view of a surface light source atmosphere lamp according to one or more embodiments of the present invention.

[0030] Among them, 1. decorative panel, 11. covering layer, 12. non-light-transmitting area, 13. light-transmitting area; 2. LED module, 21. shell, 22. PCBA board, 23. back cover, 24. snap-on structure; 3. light guide block, 31. snap-on protrusion; 4. reflective bottom shell, 41. first snap, 42. second snap, 43. reflective protrusion; 5. wiring harness assembly. DETAILED DESCRIPTION

[0031] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0032] Embodiment 1:

[0033] Since the light guide plate of a conventional surface light source atmosphere lamp is usually provided with tiny convex points or concave points, the processing technology thereof is complicated; and the number of LEDs is large, which increases the overall cost of the atmosphere lamp; in order to solve the above problems, this embodiment provides a surface light source atmosphere lamp, such as Figure 1-Figure 6 As shown, it includes a trim panel 1, an LED module 2, a light guide block 3, a reflective bottom shell 4 and a wiring harness assembly 5. The reflective bottom shell 4 is injection molded with a white high-reflective material. Figure 1 In the viewing direction, the top of the reflective bottom shell 4 is an open structure, and the inside is a cavity with a certain depth; the reflective bottom shell 4 provides an installation carrier for the LED module 2 and the light guide block 3, and the decorative panel 1 is connected to the top of the reflective bottom shell 4 to enclose the LED module 2 and the light guide block 3 in the internal space of the reflective bottom shell 4; the wiring harness assembly 5 is connected to the LED module 2 (for example, welded and fixed) to provide power for the ambient light and LIN / CAN signals.

[0034] The decorative plate 1 is a transparent decorative part, which is formed by two-color injection molding. Figure 2 As shown, the decorative plate 1 includes a decorative plate 1 body, which is divided into a non-light-transmitting area 12 and a light-transmitting area 13. The non-light-transmitting area 12 occupies most of the area of ​​the decorative plate 1 body, and the light-transmitting area 13 is a rectangular area distributed near one end of the decorative plate 1 body; the light-transmitting area 13 is made of transparent or milky white material, and the non-light-transmitting area 12 is made of black material. The upper side of the decorative plate 1 body is covered with a covering layer 11, which is an IML film with a decorative pattern or light-transmitting leather.

[0035] like Figure 1 and Figure 4 As shown, the reflective bottom shell 4 includes a main body section and a mounting section. The main body section is used as a reflective surface to cooperate with the LED module 2, the light guide block 3 and the decorative plate 1 to form a surface light source effect. The main body section of this embodiment has a rectangular cross section and an arc-shaped longitudinal cross section. The main body section is distributed with a plurality of reflective protrusions 43, which are arranged in multiple rows and columns; and the reflective protrusions 43 at both ends of the main body section are smaller than the reflective protrusions 43 in the middle area. This is because the reflective protrusions 43 with small sizes reflect less light, and the reflective protrusions 43 with large sizes reflect more light. The different sizes of the reflective protrusions 43 can make the light reflected to the decorative plate 1 more uniform.

[0036] The shape of the reflective protrusion 43 can be selected according to actual requirements, such as a square protrusion, a cylindrical protrusion, etc.; the reflective protrusion 43 plays a role in reflecting and balancing light.

[0037] The two ends of the main section are connected to the mounting section, and the mounting section is a variable-size structure, and its size gradually decreases from one end connected to the main section to the other end, forming an isosceles trapezoidal structure in cross section; the light guide block 3 is arranged in the mounting section, and the isosceles trapezoidal mounting section can not only ensure the installation of the light guide block 3, but also reduce the size of the end of the reflective bottom shell 4 to avoid occupying too much space.

[0038] like Figure 3 As shown, the LED module 2 includes a housing 21, a PCBA board 22 and a back cover 23. The PCBA board 22 is installed in the housing 21 and is closed by the back cover 23. In this embodiment, the back cover 23 is snapped together with the housing 21. The inner side of the back cover 23 is provided with support ribs, which fix the PCBA board 22 in the housing 21. The PCBA board 22 is installed with a luminous LED particle, which provides RGB light source for the atmosphere light and controls the color and brightness of the LED.

[0039] The housing 21 is provided with a light exit hole, through which the light emitted by the LED particles can pass. A buckle structure 24 is provided outside the light exit hole, and the connection with the light guide block 3 is achieved through the buckle structure 24.

[0040] The light guide block 3 is injection molded with highly transparent PMMA material, and can guide the light emitted by the LED module 2 and hit the inner bottom surface of the reflective bottom shell 4. Figure 3-Figure 5 As shown, the light guide block 3 is a triangular structure as a whole, and a snap-in protrusion 31 is provided at one corner thereof. The snap-in protrusion 31 is plugged into the snap-in structure 24 of the LED module 2 to achieve connection between the light guide block 3 and the LED module 2 .

[0041] The light guide block 3 is arranged in the installation section of the reflective bottom shell 4, and the LED module 2 is arranged outside the light guide block 3. A slot for the LED module 2 is also arranged outside the installation section of the reflective bottom shell 4. The wiring harness is connected to the LED module 2 and extends to the outside of the reflective bottom shell 4. In order to ensure the installation stability of the light guide block 3 and the LED module 2, the light guide block 3 and the LED module 2 are fixed to the reflective bottom shell 4 by corresponding buckles.

[0042] For ease of description, the buckle for fixing the light guide block 3 is the first buckle 41, and the buckle for fixing the LED module 2 is the second buckle 42; wherein, the inclined surfaces on both sides of the snap-on protrusion 31 of the light guide block 3 are fixed by the first buckle 41, and the first buckles 41 on both sides are symmetrically arranged; a light guide block 3 is fixed by at least two first buckles 41.

[0043] like Figure 4 As shown, since one corner of the light guide block 3 is connected to the LED module 2, an edge of the light guide block 3 opposite to the connected corner corresponds to the edge of the main section of the reflective bottom shell 4, and the inclined surfaces on both sides of the light guide block 3 form an expansion structure from the outside to the inside. The light guide block 3 changes the light emitted by the LED module 2 from a point light source to a narrow strip surface light source with a height of 5mm to 7mm, and at the same time changes the direction of the light through the inclined surface at the tail of the light guide block 3, and irradiates the light to the reflective surface inside the reflective bottom shell 4. Since the reflective bottom shell 4 is made of highly reflective material and there are reflective protrusions 43 on the reflective surface, the direction of the light is changed and the light is reflected onto the decorative plate 1, forming a surface light source effect.

[0044] In this embodiment, the wiring harness assembly 5 is used to supply power and control the LED module 2 to light up and emit light. The light emitted by the LED module 2 passes through the light guide block 3. The light guide block 3 expands the light-emitting width of the LED module 2. The light is transmitted to the surface of the reflective bottom shell 4 through the light-emitting surface of the light guide block 3. Since the reflective bottom shell 4 is made of highly reflective material and has a raised structure on the surface, the raised structure reflects the light evenly onto the translucent trim panel 1. The light passes through the translucent area 13 of the trim panel 1, brightens the pattern of the IML film or translucent leather, and forms a surface light source effect.

[0045] Compared with the processing of tiny convex or concave points of traditional light guide plates, the raised structure of the reflective bottom shell 4 in this embodiment is easier to process, which reduces the production cost of the atmosphere lamp; at the same time, in terms of the light source, only point light source needs to be provided through the LED module 2, which reduces the number of light source LEDs and further reduces the cost of the atmosphere lamp.

[0046] Embodiment 2:

[0047] This embodiment provides a car, which is equipped with the surface light source atmosphere lamp described in Embodiment 1, for example, it is installed on the door panel, under the seat, on the console, on the roof, etc. The shape of the surface light source atmosphere lamp can be adjusted according to the actual installation position.

[0048] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A surface light source atmosphere lamp, characterized in that: It includes a reflective bottom shell and a decorative plate connected to the reflective bottom shell, wherein light guide blocks are respectively fixed at both ends of the inside of the reflective bottom shell, and the light guide blocks are connected to the LED module; The reflective bottom shell is provided with a plurality of reflective protrusions in the area between the light guide blocks at both ends; the light guide block forms an expansion structure from one end connected to the LED module to the other end; the LED module has a single LED particle for providing a point light source; the point light source is reflected onto the decorative panel in turn through the light guide block and the reflective protrusions to form a surface light source.

2. The surface light source atmosphere lamp according to claim 1, characterized in that: The size of the reflective protrusion located in the middle of the reflective bottom shell is larger than the sizes of the reflective protrusions at the two ends.

3. The surface light source atmosphere lamp according to claim 1, characterized in that: One end of the light guide block is plugged into the LED module, and the connection position of the two corresponds to the light outlet hole of the LED module.

4. A surface light source atmosphere lamp according to claim 1 or 3, characterized in that: The light guide block and the LED module are fixed to the reflective bottom shell via buckles respectively.

5. A surface light source atmosphere lamp according to claim 1 or 3, characterized in that: The light guide block has a triangular structure.

6. The surface light source atmosphere lamp according to claim 1, characterized in that: The decorative plate is provided with a non-light-transmitting area and a light-transmitting area; A covering layer is provided on the outer side of the decorative plate.

7. A surface light source atmosphere lamp according to claim 1 or 2, characterized in that: The reflective bottom shell is injection-molded using a highly reflective material.

8. The surface light source atmosphere lamp according to claim 1 or 3, characterized in that: The light guide block is injection-molded using highly transparent PMMA material.

9. A surface light source atmosphere lamp according to claim 1 or 3, characterized in that: The LED module is connected to a wiring harness assembly.

10. An automobile, characterized in that: A surface light source atmosphere lamp as described in any one of claims 1-9 is installed.

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