Automobile ceiling lamp assembly and automobile

Abstract

The utility model provides an automobile ceiling lamp assembly and an automobile, and belongs to the technical field of automobile parts, the automobile ceiling lamp assembly comprises a shell, a first light guide body and a second light guide body, the shell comprises a panel main body and the first light guide body comprises a light emitting surface and a light receiving surface; the one-way light-transmitting layer covers the light-emitting surface or the light-receiving surface; the bottom shell is detachably connected to the panel main body, and a mounting cavity is formed between the bottom shell and the panel main body; the circuit board is located in the installation cavity, a first light-emitting light source is arranged on the circuit board, and the light-emitting face of the first light-emitting light source faces the light-receiving face and is attached to the light-receiving face. According to the utility model, the first light guide body and the panel main body form an integrated structure through the double-shot molding technology, so that the structure and the assembly process of the whole automobile ceiling lamp assembly are simplified, the production cost of the automobile ceiling lamp assembly is reduced, and in addition, one side of the light-emitting surface or the light-receiving surface of the light guide body is covered with the one-way light-transmitting layer, so that the light-emitting surface or the light-receiving surface of the light guide body is not damaged. And a user is prevented from seeing the internal structure of the automobile ceiling lamp assembly, so that the overall appearance of the whole automobile ceiling lamp assembly is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, and relates to an automotive roof light assembly, particularly an automotive roof light assembly. Background Technology

[0002] In the existing technology, automotive headlight assemblies such as roof lights or map lights generally use mechanical buttons. Mechanical buttons require a certain amount of travel to turn on the headlight assembly. Therefore, in order to ensure the uniformity of the light emitted by the headlight assembly and avoid bright spots, a series of light-uniforming structures such as light guide plates and light guide brackets are set inside the headlight assembly, which increases the cost of the entire headlight assembly and makes the structure of the entire headlight assembly more complex. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a simplified automotive roof light assembly that can reduce production costs.

[0004] The objective of this utility model can be achieved through the following technical solution: A car roof light assembly, comprising:

[0005] The outer shell includes an opaque panel body and a light-transmitting first light guide, and the panel body and the first light guide are integrally molded by two-color injection molding. The first light guide includes a light-emitting surface and a light-receiving surface.

[0006] A one-way light-transmitting layer is used to cover the light-emitting surface or the light-receiving surface, and the shape of the one-way light-transmitting layer is adapted to the shape of the light-emitting surface or the light-receiving surface.

[0007] The bottom shell is connected to the main body of the panel, and the connection between the bottom shell and the main body of the panel forms a hollow shell with a mounting cavity;

[0008] A circuit board is located inside the mounting cavity, and a first light source is provided on the circuit board, wherein the light-emitting surface of the first light source faces the light-receiving surface and is close to the light-receiving surface.

[0009] In the aforementioned automotive dome light assembly, the panel body includes an outer surface, which is disposed on the same side as the light-emitting surface. A one-way light-transmitting layer covers the light-emitting surface, and there is a height difference between the outer surface and the light-emitting surface. The thickness of the one-way light-transmitting layer is less than or equal to the height difference.

[0010] In the aforementioned automotive dome light assembly, a serrated portion is provided on the light-receiving surface, and the serrated portion includes multiple rows of teeth arranged in an array. Each row of teeth is arranged in a wave shape, and each row of teeth is provided with multiple teeth. Any tooth is located at the crest of the wave on one side along the length direction of the row of teeth, and at the trough on the other side.

[0011] In the aforementioned automotive dome light assembly, the panel body and the first light guide body are joined in a stepped manner. A recess is provided along the edge of the first light guide body, and a protrusion is provided on the panel body to cooperate with the recess.

[0012] In the aforementioned automotive dome light assembly, the panel body includes an inner surface and a first clamping part is provided on the inner surface; the bottom shell includes a splicing surface and a second clamping part is provided on the splicing surface, wherein the circuit board is clamped between the first clamping part and the second clamping part.

[0013] In the aforementioned automotive dome light assembly, the housing also includes a two-color injection molded light-transmitting body. The inner surface of the light-transmitting body has a light-shielding layer, and a portion of the light-shielding layer is hollowed out to form a light-transmitting pattern. The surface of the circuit board has multiple annular closed metal touch layers, one part of which corresponds to the position of the light-transmitting pattern, and the other part corresponds to the position of the first light guide.

[0014] In the aforementioned automotive dome light assembly, a second light guide is provided between the panel body and the circuit board, and the position of the second light guide corresponds to the position of the light-transmitting pattern portion. A second light source is provided on the circuit board, and the light emission direction of the second light source is towards the side of the second light guide and is converted into surface light emission by the second light guide and emitted from the light-transmitting pattern portion.

[0015] In the aforementioned automotive dome light assembly, a plurality of recesses for reflecting light are provided on the side surface of the second light guide facing the circuit board.

[0016] In the aforementioned automotive dome light assembly, a light-transmitting pattern is formed on the inner surface of the light-transmitting body through a combination of painting and laser engraving.

[0017] This utility model also provides a car, including a car roof light assembly.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] (1) The present invention provides an automotive roof light assembly in which the first light guide and the panel body are integrated into one structure through two-color injection molding technology. This not only simplifies the structure and assembly process of the entire automotive roof light assembly, but also reduces the production cost of the automotive roof light assembly. In addition, a one-way light-transmitting layer is covered on one side of the light-emitting surface or the light-receiving surface of the light guide to prevent users from seeing the internal structure of the automotive roof light assembly when it is not lit, thereby improving the overall appearance of the entire automotive roof light assembly.

[0020] (2) A height difference is formed between the outer surface and the light-emitting surface, which can be compensated by the thickness of the one-way light-transmitting layer, so that the light-emitting surface covered with the one-way light-transmitting layer is flush with the outer surface or the one-way light-transmitting layer is recessed into the light-emitting surface, thereby improving the appearance of the entire automotive dome light assembly. In addition, due to the height difference between the outer surface and the light-emitting surface, the one-way light-transmitting layer covered on the light-emitting surface forms a similar "embedded" installation, "hiding" each side of the one-way light-transmitting layer, thereby improving the reliability of the installation of the one-way light-transmitting layer.

[0021] (3) By setting a serrated part on the light-receiving surface, the light emitted from the first light source can be refracted when it enters the first light guide, thereby adjusting the light transmission path and improving the light utilization rate.

[0022] (4) By using a stepped fit between the first light guide and the panel body, the contact area between the two is increased. On the other hand, since the first light guide and the panel body are made of different materials, there may be a risk of cracking after long-term use. However, with the stepped fit, even if the two crack, the panel body can still "support" the first light guide, thus improving the reliability of the connection between the two.

[0023] (5) The circuit board is clamped between the first rib and the second rib, which improves the reliability of the circuit board installation on the one hand, and the strength of the panel body and the bottom shell on the other hand. In addition, the second rib is set in the cavity, so that a part of the circuit board structure can be located in the cavity, thereby reducing the thickness of the automotive roof light assembly and realizing the thinning development of the automotive roof light assembly.

[0024] (6) The metal touch layer is a thin closed ring and is integrated with the circuit board. The light source is lit through the metal touch layer. The use of the metal touch layer saves production costs, improves product competitiveness, and simplifies the internal structure of the car roof light assembly, thereby further reducing the thickness of the car roof light assembly and realizing the lightweight development of the car roof light assembly. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of an automotive roof light assembly according to this utility model.

[0026] Figure 2 This is a structural schematic diagram of an automotive roof light assembly from another perspective.

[0027] Figure 3 yes Figure 2 The cross-sectional view shown is taken along the cutting line AA.

[0028] Figure 4 This is a partial structural diagram of an automotive roof light assembly according to the present invention.

[0029] Figure 5 This is a schematic diagram of the bottom shell in a preferred embodiment of the present invention.

[0030] Figure 6 This is a schematic diagram of the structure of the first light guide in a preferred embodiment of the present invention.

[0031] Figure 7 This is a schematic diagram of the circuit board structure in a preferred embodiment of the present invention.

[0032] In the picture,

[0033] 100. Panel body; 110. Outer surface; 120. Inner surface; 130. Protrusion; 140. First rib; 150. Positioning post; 160. First connecting post; 161. First connecting hole;

[0034] 200, First light guide; 210, Light emitting surface; 220, Light receiving surface; 230, Serrated portion; 231, Tooth row; 240, Recess; 241, First stepped surface; 242, Second stepped surface;

[0035] 300. One-way light transmission layer;

[0036] 400, bottom shell; 410, splicing surface; 420, cavity; 430, second rib; 440, positioning hole; 450, second connecting post; 451, second connecting hole;

[0037] 500, Circuit board; 510, First light source; 520, Metal touch layer; 530, Second light source;

[0038] 600. Second light guide; 610. Recess;

[0039] 700. Transparent body; 710. Transparent pattern section. Detailed Implementation

[0040] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0041] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0042] like Figures 1 to 7 As shown, the present invention provides an automotive roof light assembly, comprising:

[0043] The outer shell includes an opaque panel body 100 and a light-transmitting first light guide 200, and the panel body 100 and the first light guide 200 are integrally molded by two-color injection molding. The first light guide 200 includes a light-emitting surface 210 and a light-receiving surface 220.

[0044] A one-way light-transmitting layer 300 covers either the light-emitting surface 210 or the light-receiving surface 220. When the one-way light-transmitting layer 300 covers the light-emitting surface 210, the shape of the one-way light-transmitting layer 300 matches the shape of the light-emitting surface 210; when the one-way light-transmitting layer 300 covers the light-receiving surface 220, the shape of the one-way light-transmitting layer 300 matches the shape of the light-emitting surface 210.

[0045] The bottom shell 400 is detachably connected to the panel body 100. The connection between the bottom shell 400 and the panel body 100 forms a hollow shell, and an installation cavity is provided inside the shell.

[0046] The circuit board 500 is located inside the mounting cavity, and a first light source 510 is provided on the circuit board 500, wherein the light-emitting surface of the first light source 510 faces the light-receiving surface 220 and is close to the light-receiving surface 220.

[0047] The present invention provides an automotive dome light assembly in which the first light guide 200 and the panel body 100 are integrated into a single structure using a two-color injection molding technique. This not only simplifies the structure and assembly process of the entire automotive dome light assembly but also reduces the production cost of the automotive dome light assembly. In addition, a one-way light-transmitting layer 300 is covered on one side of the light-emitting surface 210 or the light-receiving surface 220 of the light guide to prevent users from seeing the internal structure of the automotive dome light assembly when it is not lit, thereby improving the overall appearance of the entire automotive dome light assembly.

[0048] In addition, when the one-way light-transmitting layer 300 covers the light-emitting surface 210, the shape of the one-way light-transmitting layer 300 matches the shape of the light-emitting surface 210; when the one-way light-transmitting layer 300 covers the light-receiving surface 220, the shape of the one-way light-transmitting layer 300 matches the shape of the light-emitting surface 210, thereby achieving full coverage of the first light guide 200 by the one-way light-transmitting layer 300.

[0049] Furthermore, the panel body 100 is made of an opaque material, while the first light guide 200 is made of a light-transmitting material. Notably, no light-transmitting layer is provided on the same side of the panel body 100 and the light-emitting surface 210 of the first light guide 200, thereby avoiding light leakage and improving the reliability of the automotive dome light assembly when it emits light.

[0050] Preferably, the panel body 100 includes an outer surface 110 and an inner surface 120, and the outer surface 110 is disposed on the same side as the light-emitting surface 210. A one-way light-transmitting layer 300 covers the light-emitting surface 210, there is a height difference between the outer surface 110 and the light-emitting surface 210, and the thickness of the one-way light-transmitting layer 300 is less than or equal to the height difference.

[0051] It is worth mentioning that the one-way light-transmitting layer 300 has a certain thickness. When the one-way light-transmitting layer 300 covers the light-receiving surface 220, since the light-receiving surface 220 is located inside the housing, although the first light-emitting light source 510 is close to the light-receiving surface 220, there is still a gap between the two. Therefore, even if the one-way light-transmitting layer 300 covers the light-receiving surface 220, it will not affect the transmission of light. However, when the one-way light-transmitting layer 300 covers the light-emitting surface 210, the light-emitting surface 210 covered by the one-way light-transmitting layer 300 may be higher than the outer surface 110 of the panel body 100. On the one hand, when the first light source 510 needs to be turned on or off, the user's finger will come into contact with the light-emitting surface 210. After repeated use, the one-way light-transmitting layer 300 and the light-emitting surface 210 may slip relative to each other, resulting in some areas of the light-emitting surface 210 not being covered by the one-way light-transmitting layer 300. Or, children may "poke" the one-way light-transmitting layer 300 with their fingers out of curiosity, which will also result in some areas of the light-emitting surface 210 not being completely covered by the one-way light-transmitting layer 300. Moreover, the "protruding" one-way light-transmitting layer 300 is easy to "poke off". In addition, since the one-way light-transmitting layer 300 is higher than the outer surface 110, it affects the appearance of the entire car dome light assembly.

[0052] Therefore, in this embodiment, a height difference is formed between the outer surface 110 and the light-emitting surface 210, and this height difference can be compensated by the thickness of the one-way light-transmitting layer 300, so that the light-emitting surface 210 covered by the one-way light-transmitting layer 300 is flush with the outer surface 110 or the one-way light-transmitting layer 300 is recessed into the light-emitting surface 210, thereby improving the appearance of the entire automotive dome light assembly. In addition, since a height difference is formed between the outer surface 110 and the light-emitting surface 210, the one-way light-transmitting layer 300 covering the light-emitting surface 210 forms a similar "embedded" installation, "hiding" each side of the one-way light-transmitting layer 300, thereby improving the reliability of the installation of the one-way light-transmitting layer 300.

[0053] Preferably, the light-receiving surface 220 is provided with a serrated portion 230, and the serrated portion 230 includes a plurality of rows of teeth arranged in an array, wherein each row of teeth is arranged in a wave shape, and each row of teeth is provided with a plurality of teeth 231, wherein any one tooth 231 is located at the crest of the wave on one side along the length direction of the row of teeth, and the other side of the tooth 231 is located at the trough of the wave.

[0054] It is further pointed out that one side of the tooth surface of the tooth 231 is flat, and the opposite side is convex.

[0055] In this embodiment, by providing a serrated portion 230 on the light-receiving surface 220, the light emitted from the first light source 510 can be refracted when it enters the first light guide 200, thereby adjusting the light transmission path and improving the light utilization rate.

[0056] Preferably, the panel body 100 and the first light guide 200 are joined in a stepped manner, wherein a recess 240 is provided along the edge of the first light guide 200, and a protrusion 130 is provided on the panel body 100 to cooperate with the recess 240.

[0057] Furthermore, the recess 240 is stepped and annular along the edge of the first light guide 200. The recess 240 includes a first stepped surface 241 and a second stepped surface 242. This structure is similar to having a through-slot on the panel body 100, with the area of ​​the through-slot slightly larger than the area enclosed by the first stepped surface 241 and smaller than the area enclosed by the second stepped surface 242. When the first light guide 200 is connected to the panel body 100, it inserts along the inner surface 120 of the panel body 100 towards the outer surface 110, causing the outer region of the through-slot on the inner surface 120 to abut against the recess 240.

[0058] In this embodiment, the stepped fit between the first light guide 200 and the panel body 100 increases the contact area between them. On the other hand, since the first light guide 200 and the panel body 100 are made of different materials, there may be a risk of cracking after long-term use. However, the stepped fit ensures that even if cracking occurs, the panel body 100 can still "support" the first light guide 200, thus improving the reliability of the connection between them.

[0059] Preferably, a first clamping part is provided on the inner surface 120; the bottom shell 400 includes a splicing surface 410, and a second clamping part is provided on the splicing surface 410, wherein the circuit board 500 is clamped between the first clamping part and the second clamping part.

[0060] More preferably, the first clamping part includes a first rib 140 disposed on the inner surface 120; the second clamping part includes a cavity 420 formed by recessing along the splicing surface 410, and a second rib 430 disposed in the cavity 420, wherein the circuit board 500 is clamped between the first rib 140 and the second rib 430.

[0061] In this embodiment, the circuit board 500 is clamped between the first rib 140 and the second rib 430, which improves the reliability of the circuit board 500 installation and the strength of the panel body 100 and the bottom shell 400. In addition, the second rib 430 is disposed in the cavity 420, so that a part of the structure of the circuit board 500 can be located in the cavity 420, thereby reducing the thickness of the automotive dome light assembly and realizing the thinning development of the automotive dome light assembly.

[0062] In a further preferred embodiment, a positioning post 150 is provided on the inner surface 120 of the panel body 100, and a positioning hole 440 is provided on the bottom of the cavity 420 of the bottom shell 400 to engage with the positioning post 150. A first connecting post 160 is also provided on the inner surface 120 of the panel body 100, and a first connecting hole 161 is provided in the first connecting post 160. A second connecting post 450 is provided on the bottom of the cavity 420 of the bottom shell 400, and a second connecting hole 451 is provided in the second connecting post 450. The connection between the panel body 100 and the bottom shell 400 is completed by fasteners passing through the first connecting hole 161 and the second connecting hole 451.

[0063] It is worth mentioning that, since the circuit board 500 is sandwiched between the first rib 140 and the second rib 430, in order to achieve a reliable connection between the panel body 100 and the bottom shell 400, a clearance hole can be provided at the corresponding position of the circuit board 500 to avoid structures such as the positioning post 150 and the first connecting post 160.

[0064] Preferably, the outer casing also includes a light-transmitting body 700 integrally molded by two-color injection molding. The inner surface of the light-transmitting body 700 has a light-shielding layer, and a portion of the light-shielding layer is hollowed out to form a light-transmitting pattern portion 710. The surface of the circuit board 500 has a plurality of annular closed metal touch layers 520, in which the position of a portion of the metal touch layers 520 corresponds to the position of the light-transmitting pattern portion 710, and the position of another portion of the metal touch layers 520 corresponds to the position of the first light guide 200.

[0065] It is worth mentioning that, unlike existing technologies that use structures such as metal touch coils and conductive rubber to turn the light source on and off, in this embodiment, the metal touch layer 520 is a thin, closed ring that is integrally formed with the circuit board 500. The light source is turned on by the metal touch layer 520. Using the metal touch layer 520 saves production costs, improves product competitiveness, and simplifies the internal structure of the automotive roof light assembly, thereby further reducing the thickness of the automotive roof light assembly and achieving the development of a thinner and lighter automotive roof light assembly.

[0066] Additionally, the metal touch layer 520 typically refers to a material layer used in capacitive touchscreen technology that enables the screen to recognize touch input. This touch layer is usually made of a transparent conductive material, most commonly indium tin oxide (ITO). When a user's finger approaches or touches the switch surface on the car's dome light assembly, the change in capacitance is converted into a voltage signal. This voltage signal is then output as a high or low level to turn the light source on or off, thus enabling touch control of the car's dome light assembly.

[0067] In a further preferred embodiment, a second light guide 600 is provided between the panel body 100 and the circuit board 500, and the position of the second light guide 600 corresponds to the position of the light-transmitting pattern portion 710. A second light source 530 is provided on the circuit board 500, and the light emission direction of the second light source 530 is towards the side of the second light guide 600 and is converted into surface light emission by the second light guide 600 and emitted from the light-transmitting pattern portion 710.

[0068] Furthermore, a plurality of pits 610 for reflecting light are provided on the side surface of the second light guide 600 facing the circuit board 500, and the plurality of pits 610 are evenly distributed on the second light guide 600.

[0069] It is worth mentioning that the second light guide 600 is made of optical-grade acrylic / PC sheet, a high-tech material with extremely high refractive index and no light absorption. Light guide points, or recesses 610, are printed on the bottom surface of the optical-grade acrylic sheet using techniques such as laser engraving, V-shaped cross grid engraving, or UV screen printing. The optical-grade acrylic sheet receives light emitted from the light source and propagates through total internal reflection on its inner surface. When light hits each light guide point, the presence of the light guide points disrupts the internal total internal reflection condition, causing the reflected light to diffuse in various angles before exiting from the front of the light guide plate. Through various light guide points of varying density and size, the light guide plate can emit light uniformly.

[0070] It is further pointed out that a light-transmitting pattern 710 is formed on the inner surface of the light-transmitting body 700 by spray painting and laser engraving process.

[0071] It is worth mentioning that the second light guide 600 is generally elongated, and the second light source 530 on the circuit board 500 corresponds to one end of the second light guide 600 along its length. When the second light source 530 is turned on, light enters from the side of the second light guide 600, is converted into surface light by the second light guide 600, and then passes through the light-transmitting pattern portion 710 on the panel body 100. At this time, people can see the luminous light-transmitting pattern portion 710, while the area outside the light-transmitting pattern portion 710 is in a non-luminous state. In addition, multiple light-transmitting pattern portions 710 are provided on the light-transmitting body 700. When the second light source 530 corresponding to the light-transmitting body 700 is turned on, the multiple light-transmitting pattern portions 710 are lit simultaneously, thereby improving light utilization, reducing the number of second light sources 530, and reducing the manufacturing cost of the automotive dome light assembly.

[0072] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0073] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0074] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An automotive dome light assembly, characterized by, include: The outer shell includes an opaque panel body (100) and a light-transmitting first light guide (200), wherein the panel body (100) and the first light guide (200) are integrally molded by two-color injection molding, wherein the first light guide (200) includes a light-emitting surface (210) and a light-receiving surface (220); A one-way light-transmitting layer (300) covers the light-emitting surface (210) or the light-receiving surface (220), and the shape of the one-way light-transmitting layer (300) is adapted to the shape of the light-emitting surface (210) or the light-receiving surface (220); A bottom shell (400) is connected to the panel body (100), and a hollow shell with a mounting cavity is formed by the connection between the bottom shell (400) and the panel body (100); A circuit board (500) is located inside the mounting cavity, and a first light source (510) is provided on the circuit board (500), wherein the light-emitting surface of the first light source (510) faces the light-receiving surface (220) and is close to the light-receiving surface (220).

2. The automotive dome light assembly of claim 1, wherein, The panel body (100) includes an outer surface (110), and the outer surface (110) is disposed on the same side as the light-emitting surface (210). The one-way light-transmitting layer (300) covers the light-emitting surface (210), and there is a height difference between the outer surface (110) and the light-emitting surface (210). The thickness of the one-way light-transmitting layer (300) is less than or equal to the height difference.

3. The automotive dome light assembly of claim 1, wherein, The light-receiving surface (220) is provided with a serrated portion (230), and the serrated portion (230) includes a plurality of rows of teeth arranged in an array, wherein each row of teeth is arranged in a wave shape, and each row of teeth is provided with a plurality of teeth (231), wherein one side of any tooth (231) along the length direction of the row of teeth is located at the crest position, and the other side of the tooth (231) is located at the trough position.

4. The automotive dome light assembly of claim 1, wherein, The panel body (100) and the first light guide (200) are joined in a stepped manner. A recess (240) is provided along the edge of the first light guide (200), and a protrusion (130) is provided on the panel body (100) to cooperate with the recess (240).

5. The automotive roof light assembly according to claim 1, characterized in that, The panel body (100) includes an inner surface (120) and a first clamping part is provided on the inner surface (120); the bottom shell (400) includes a splicing surface (410) and a second clamping part is provided on the splicing surface (410), wherein the circuit board (500) is clamped between the first clamping part and the second clamping part.

6. The automotive roof light assembly according to any one of claims 1 to 5, characterized in that, The outer casing also includes a light-transmitting body (700) integrally molded by two-color injection molding. The inner surface of the light-transmitting body (700) has a light-shielding layer, and a portion of the light-shielding layer is hollowed out to form a light-transmitting pattern portion (710). The surface of the circuit board (500) has multiple annular closed metal touch layers (520), in which the position of a portion of the metal touch layers (520) corresponds to the position of the light-transmitting pattern portion (710), and the position of another portion of the metal touch layers (520) corresponds to the position of the first light guide (200).

7. The automotive roof light assembly according to claim 6, characterized in that, A second light guide (600) is provided between the panel body (100) and the circuit board (500), and the position of the second light guide (600) corresponds to the position of the light-transmitting pattern part (710). A second light source (530) is provided on the circuit board (500), and the light emission direction of the second light source (530) is towards the side of the second light guide (600) and is converted into surface light emission by the second light guide (600) and emitted from the light-transmitting pattern part (710).

8. The automotive roof light assembly according to claim 7, characterized in that, A plurality of recesses (610) for reflecting light are provided on the side surface of the second light guide (600) facing the circuit board (500).

9. The automotive roof light assembly according to claim 6, characterized in that, The light-transmitting pattern part (710) is formed on the inner surface of the light-transmitting body (700) by spray painting and laser engraving process.

10. A car, characterized in that, Includes the automotive roof light assembly as described in any one of claims 1 to 9.

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