Seat assembly of vehicle and vehicle

Abstract

According to the seat assembly of the vehicle and the vehicle, a light source is installed on a seat, a light outlet faces a vehicle ceiling, emergent light of the light source is firstly projected to the vehicle ceiling, is reflected by the vehicle ceiling and then is scattered to the inner space of a cabin, the effect of lighting the inner space of the cabin is achieved, light is softer in the mode, and the effect is better. The light-emitting unit is arranged on the seat, the fatigue degree of a driver can be relieved, the dazzling risk caused by the fact that passengers or the driver directly look at the light-emitting face can be avoided, the light-emitting unit is located on the seat and is convenient to install, and in addition, the mode of indirect illumination through reflected light can be combined with the arrangement of a car roof, and the high-grade feeling and the warm and sweet feeling of a house can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of lighting systems, and particularly to a seat assembly for a vehicle and a vehicle. Background Art

[0002] The lighting lamps currently used for lighting in a vehicle cockpit are usually direct lighting lamps, and the light emitted by the direct lighting lamps directly illuminates the cockpit. For a direct lighting lamp, the occupants in the cockpit can see the light-emitting surface of the direct lighting lamp. When the driver drives in this lighting environment for a predetermined time, the light-emitting surface will cause driver fatigue. In particular, when the external environment of the cockpit is too dark, the driver and passengers inside the cockpit will have a high risk of glare.

[0003] Therefore, how to alleviate at least one of the fatigue or glare risk caused by the lighting to the occupants in the vehicle such as the driver is a technical problem that those skilled in the art need to solve currently. Summary of the Utility Model

[0004] The purpose of the present application is to provide a seat assembly for a vehicle and a vehicle, which can alleviate driver driving fatigue or avoid the glare risk caused by passengers directly looking at the light-emitting surface.

[0005] The present application provides a seat assembly for a vehicle, including the following components:

[0006] A seat body;

[0007] A lighting unit, installed on the seat body, the lighting unit includes a light source and a light outlet, the light outlet is located on the seat body, and the light outlet faces the roof of the vehicle cockpit.

[0008] Compared with the prior art that uses direct lighting lamps to illuminate the internal space of the cockpit, in the embodiment of the present application, the light source is installed on the seat, the light outlet faces the roof, the emitted light rays of the light source are first projected onto the roof, and after being reflected by the roof, they are scattered into the internal space of the cockpit, achieving the effect of illuminating the internal space of the cockpit. This way, the light is softer, can alleviate the driver's fatigue, and can also avoid the glare risk caused by passengers or the driver directly looking at the light-emitting surface. Moreover, the lighting unit is conveniently located on the seat, and this indirect lighting method using reflected light can be combined with the layout of the roof, making it more luxurious and homey.

[0009] In one example, the light outlet is located at the top of the seat body.

[0010] In one example, the seat body includes a skeleton and a surface layer. The surface layer is located outside the skeleton. The top of the surface layer includes a transparent part. The light-emitting unit is positioned and connected to the skeleton and is located inside the space surrounded by the surface layer. The light outlet is disposed opposite to the transparent part.

[0011] In one example, the surface layer includes a main body part. A through hole is provided at a position of the main body part opposite to the light outlet. The transparent part is installed at the position of the through hole.

[0012] In one example, the transparent part has an extension section. The extension section extends toward the side of the light-emitting unit. The light-emitting unit includes a housing. One side of the housing has the light outlet. The light source is installed inside the housing. The extension section at least partially extends to the outer periphery or inside of the housing. The extension section is fixedly connected to the housing.

[0013] In one example, the extension section is adhesively fixed to the side surface of the housing in contact therewith;

[0014] Or / and, the outer peripheral wall of the housing further has a stepped surface. The stepped surface faces the transparent part. The extension section abuts against the stepped surface. Or, the housing is further provided with a groove. The opening of the groove faces the transparent part. The extension section is inserted into the groove and abuts against the bottom of the groove.

[0015] In one example, the seat assembly further includes a clamping structure. The light-emitting unit includes a housing. One side of the housing has the light outlet. The light source is installed inside the housing. The housing is fixedly clamped to the skeleton through the clamping structure.

[0016] In one example, the light-emitting unit further includes a PCB board. The PCB board is located inside the housing. A plurality of discretely distributed point light sources are electrically connected to the PCB board. The light-emitting unit further includes a light guide member. The light guide member is located on the side of all the point light sources away from the PCB board.

[0017] In one example, the transparent part is circumferentially butted and connected to the main body part to form an integral structure.

[0018] In one example, the seat body includes a headrest, a backrest and a seat cushion. The light-emitting unit is installed on the top of the headrest. A tube body is connected between the headrest and the backrest. The seat assembly further includes a cable for electrically connecting the light source to a power supply. At least part of the cable is disposed inside the tube body.

[0019] The embodiment of the present application further provides a vehicle, including a cockpit. The cockpit has a roof lining; further includes:

[0020] At least one seat assembly as described in any one of the above, the seat body is installed in the cockpit, and the roof of the cockpit can reflect at least part of the emitted light of the light source.

[0021] The vehicle in this application includes the above seat assembly, so the vehicle in the embodiments of this application also has the above technical effects of the seat assembly. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of a vehicle in a specific embodiment provided by this application, in which only the main components related to the inventive points are shown;

[0023] Figure 2 It is a schematic structural diagram of a seat assembly in a specific embodiment provided by this application;

[0024] Figure 3 is Figure 2 A partial vertical cross-sectional view of the position where the light-emitting unit is provided in the seat assembly shown;

[0025] Figure 4 is Figure 3 An exploded view of the structure shown;

[0026] Figure 5 It is a cross-sectional view of a light-emitting unit in a specific embodiment provided by this application.

[0027] Explanation of the Reference Numerals:

[0028] 100 Vehicle; 101 Cockpit;

[0029] 1 Roof; 2 Vehicle Body; 3 Seat Body; 30 Backrest; 31 Headrest; 310 Frame; 311 Main Body; 312 Transparent Part; 3121 Extension Section; 31211 Inner Side; 31212 End Face; 32 Seat Cushion; 33 Tube Body; 4 Light-Emitting Unit; 411 Outer Peripheral Surface; 412 Step Surface; 3a Through Hole; 3b Gap; 5 Wheel; 6 Clamping Structure. Detailed Description of the Embodiments

[0030] In order to enable those skilled in the art to better understand the solution of this application, the following further describes this application in detail with reference to the drawings and specific embodiments.

[0031] Figure 1 It is a schematic structural diagram of a vehicle in a specific embodiment provided by this application, in which only the main components related to the inventive points are shown; Figure 2 It is a schematic structural diagram of a seat assembly in a specific embodiment provided by this application; Figure 3 is Figure 2 A partial vertical cross-sectional view of the position where the light-emitting unit is provided in the seat assembly shown; Figure 4 isFigure 3 Exploded view of the structure shown; Figure 5 Cross-sectional view of a light-emitting unit in a specific embodiment provided by the present application. Among them Figure 1 The dashed line in the figure represents the outgoing light of the light-emitting unit, the arrow represents the propagation direction of the light, S represents the propagation direction of the light directly emitted by the light-emitting unit 4, and S1 represents the propagation direction of the light after reflection by the roof.

[0032] Please refer to Figure 1 , an embodiment of the present application provides a vehicle 100, the vehicle 100 includes a vehicle body 2 and wheels 5, the vehicle body 2 is supported by the wheels 5, and the number of wheels 5 is usually four, and of course it can also be more. The vehicle body 2 has a cockpit 101, and seats are fixed inside the cockpit 101. Figure 1 An example of arranging two rows of seats front and back inside the cockpit 101 is shown in the figure. For a seven-seater vehicle, three rows of seats can be arranged inside the cockpit 101. The number and arrangement of the seats can be specifically set according to the model of the vehicle 100. In this application document, the side where the steering wheel is located is defined as the front, and correspondingly, the rear direction away from the steering wheel is defined as the rear.

[0033] An embodiment of the present application provides a seat assembly, which includes a seat body 3 and a light-emitting unit 4. The light-emitting unit 4 is installed on the seat body 3. In a specific example, the light-emitting unit 4 is completely installed inside the seat body 3. Of course, it is not excluded that the light-emitting unit 4 can be partially installed inside the seat body 3 and partially located outside the seat body 3. Furthermore, the light-emitting unit 4 can also be completely located outside the seat body 3.

[0034] In the embodiment of the present application, the light-emitting unit 4 includes a light source (not shown in the figure) and a light-emitting port. The light source is a component capable of emitting light. The power source of the light source can be the on-vehicle storage battery of the vehicle 100, or a generator. Of course, an independent power supply component can also be specifically set, such as a battery, etc. The light source can be a light-emitting diode (Light Emitting Diode, LED), hereinafter referred to as an LED lamp. This type of lamp has a short response time, strong seismic resistance, and a long service life. Of course, it can also be other types of lamps, such as halogen lamps, etc.

[0035] In the embodiment of the present application, the light outlet is located on the seat body 3 and faces the roof 1 of the cockpit 101 of the vehicle 100. In this way, at least part of the emitted light of the light source is reflected by the roof 1 to illuminate the interior space of the cockpit 101. The emitted light of the light source can irradiate part of the surface of the roof 1, and only part of the surface of the roof 1 is used to reflect the light. The reflected light illuminates the interior space of the cockpit 101. The areas of the roof 1 irradiated by the emitted light of the light source can be at least two discrete distributions, which are discretely and dispersedly distributed in different areas of the roof 1 to meet different lighting requirements for the interior space of the cockpit 101. Of course, it is also possible that the entire surface of the roof 1 reflects the emitted light of the light source to illuminate the interior space of the cockpit 101.

[0036] Compared with the prior art that uses direct lighting lamps to illuminate the interior space of the cockpit 101, in the embodiment of the present application, the light source is installed on the seat, the light outlet faces the roof 1, the emitted light of the light source is first projected onto the roof 1, and after being reflected by the roof 1, it is scattered into the interior space of the cockpit 101, achieving the effect of illuminating the interior space of the cockpit 101. This method makes the light softer, avoiding the risk of glare caused by passengers or drivers directly looking at the light-emitting surface. The light-emitting unit 4 is installed inside the structure of the seat body 3, which is convenient for installation. Moreover, this indirect lighting method using reflected light can be combined with the layout of the roof 1, making it more luxurious and homely.

[0037] Among them, the material of the area of the roof 1 irradiated by the emitted light of the light source can use non-light-absorbing materials, such as a light guide plate formed by an optical-grade acrylic / polycarbonate board (PC board), or a material with relatively weak light absorption ability. The color of the area of the roof 1 irradiated by the emitted light of the light source can also be set according to different needs to create different indoor light environments with different atmospheres.

[0038] In the embodiment of the present application, the light outlet is located at the top of the seat body 3. Since the light outlet is located at the top of the seat, it is easy to hide the light-emitting surface, minimizing the impact of the light directly emitted from the light outlet on the driver and passengers.

[0039] In the embodiment of the present application, the seat body 3 includes a skeleton 310 and a surface layer. The skeleton 310 is usually rigid, and its main functions are to bear loads, transmit torques, or increase stability, etc. The skeleton 310 can be made of materials such as metal parts or plastic parts. The surface layer is located outside the skeleton 310, and the surface layer material can be fabric, artificial leather, genuine leather, carpet cloth, etc. The material of the surface layer can be reasonably selected according to different needs.

[0040] The top of the surface layer includes a transparent part 312. The light-emitting unit 4 is positioned and connected to the skeleton 310 and is located inside the space surrounded by the surface layer. The light-emitting outlet is arranged opposite to the transparent part 312. In the embodiment of the present application, the light-emitting unit 4 is completely located inside the surface layer, does not occupy the external space of the seat, does not affect the appearance design of the seat body 3, meets the appearance aesthetic design requirements of the seat body 3, and further improves the overall aesthetics of the interior of the vehicle 100.

[0041] In one embodiment, the appearance color of the transparent part 312 can be almost the same as the appearance color of other positions of the surface layer. In this way, the surface layer as a whole looks as if it is made of the same material integrally, with a better visual effect, which is beneficial to further improving the quality of the interior of the vehicle 100.

[0042] In the embodiment of the present application, the transparent part 312 and other positions of the surface layer can form an integral structure by means of bonding technology or sewing technology. The transparent part 312 and the surrounding surface layer can form an integral through a seamless connection process, which is beneficial to obtaining a continuous and complete surface layer, with a better appearance of the seat body 3 and improving the quality of the interior of the vehicle 100. Specifically, the surface layer includes a main body part 311 and a transparent part 312. The outer periphery of the transparent part 312 is butted against the main body part 311 to form an integral structure.

[0043] Of course, the transparent part 312 and other areas of the surface layer can also be a split structure.

[0044] In the embodiment of the present application, a through hole 3a is arranged at a position of the main body part 311 opposite to the light-emitting outlet, and the transparent part 312 is installed at the position of the through hole 3a. In this embodiment, the transparent part 312 can cover the through hole 3a. Of course, the transparent part 312 can also be in clearance fit with the through hole 3a, and the gap between the two can be as small as possible. In this embodiment, the transparent part 312 and the main body part 311 are two relatively independent components. After the two are installed on the skeleton 310 of the seat body 3, a complete surface is formed. In this way, there is no need to form an integral through a process connection in advance between the transparent part 312 and the main body part 311, the process is relatively simple, and the interior cost is relatively low.

[0045] In the embodiment of the present application, the seat assembly further includes a clamping structure 6. The light-emitting unit 4 includes a housing 41. One side of the housing 41 has a light-emitting outlet. The light source is installed inside the housing 41, and the housing 41 is clamped and fixed to the skeleton 310 through the clamping structure 6. Figure 3 and Figure 4Only the snap - fit structure 6 is schematically shown, and the specific structure of the snap - fit structure 6 is not given. However, this does not prevent those skilled in the art from understanding and implementing the above - mentioned technical solution for snap - fit fixation of the housing 41 and the skeleton 310 in this application. In the embodiments of this application, the snap - fit fixation is simple to install and has a relatively low cost. If designed properly, the snap - fit structure 6 can be designed as a structure that can be used multiple times, that is, the snap - fit structure 6 can achieve repeated installation and disassembly without damaging the parts. Of course, the snap - fit structure 6 can also be designed as a one - time use structure.

[0046] The snap - fit structure 6 can be directly formed on the housing 41 and the skeleton 310. Of course, the two can also be snap - connected by setting snap - fit components. The snap - fit structure 6 can include a snap - hook and a snap - groove, with one formed on the housing 41 and the other located on the skeleton 310. Of course, the snap - fit structure 6 can also be in the form of an elastic boss and a snap - groove, and the elastic boss can be press - fitted inside the snap - groove. The elastic boss can be two or several discrete bosses, or it can be an annular structure. Of course, the snap - fit structure 6 is not limited to the above description in this application and can also be in other forms.

[0047] Among them, Figure 3 and Figure 4 only a partial structure of the skeleton 310 is schematically shown.

[0048] Of course, in addition to snap - fit fixation, the housing 41 and the skeleton 310 can also be fixed by bonding or bolt - connection and other methods. In one example, a support member can also be added. The support member is fixedly connected to the skeleton 310, and the support member can support and fix the housing 41 to improve the reliability of the fixation of the light - emitting unit 4 inside the seat body 3.

[0049] For the above - mentioned embodiments in which the main body part 311 and the transparent part 312 are of a split structure, the embodiments of this application provide a specific embodiment for installing the transparent part 312 onto the skeleton 310 of the seat body 3.

[0050] In the implementation of this application, the transparent part 312 has an extension section 3121. The extension section 3121 can be arranged circumferentially around the transparent part 312, that is, the extension section 3121 is annular. Of course, the extension section 3121 can also be arranged at intervals along the circumference, that is, there is a spacing between adjacent extension sections 3121. In the embodiments of this application, the extension section 3121 extends towards the light - emitting unit 4, and the extension length of the extension section 3121 can be determined according to the specific setting environment as long as it can ensure the reliable fixation of the transparent part 312.

[0051] In the embodiments of this application, the light - emitting unit 4 includes a housing 41. One side of the housing 41 has a light - emitting port, and the light source is installed inside the housing 41. The extension section 3121 at least partially extends to the outer periphery of the housing 41, and the extension section 3121 is fixedly connected to the housing 41. As Figure 4As shown, the end of the housing 41 facing the through hole 3a has an outer peripheral surface 411. The extending section 3121 has an inner side surface 31211. There is a radial gap 3b between the peripheral wall of the through hole 3a and the outer peripheral surface 411. When the transparent part 312 is installed, the extending section 3121 is inserted into the radial gap 3b. The inner side surface 31211 of the extending section 3121 faces the outer peripheral surface 411, and the two can be fixedly connected through an adhesive layer. The adhesive layer can be a structural adhesive, such as silicone structural adhesive, acrylate AB adhesive, epoxy structural adhesive, etc. The adhesive layer can also be formed by a liquid adhesive, such as silicone rubber. Of course, the adhesive layer can also be a double-sided adhesive.

[0052] In the embodiment of the present application, the extending section 3121 and the housing 41 are connected and fixed through an adhesive layer, with reliable fixation, relatively simple structure, and small space occupation.

[0053] In the embodiment of the present application, the outer peripheral wall of the housing 41 also has a stepped surface 412. The stepped surface 412 faces the transparent part 312, and the extending section 3121 abuts against the stepped surface 412. The extending section 3121 is inserted into the through hole 3a from the outside to the inside. When the end surface 31212 of the extending section 3121 abuts against the stepped surface 412, the transparent part 312 is installed in place. This is beneficial for the transparent part 312 to be quickly installed in place, and the stepped surface 412 can support the extending section 3121 to prevent the transparent part 312 from sagging downward, which is beneficial for forming a better appearance surface.

[0054] In another embodiment, the extending section 3121 can extend into the housing 41. For example, the housing 41 is also provided with a groove. The opening of the groove faces the transparent part 312. The extending section 3121 is partially inserted into the groove, and the extending section 3121 and the inner wall of the groove can also be fixed through an adhesive layer. The formation method of the adhesive layer can refer to the description above. This method can also achieve the fixed connection between the transparent part and the housing.

[0055] The extending section 3121 can abut against the bottom of the groove. In this way, the bottom of the groove can also play a role in positioning the installation position of the extending section 3121, which is beneficial for the transparent part 312 to be quickly installed in place, and the bottom of the groove can support the extending section 3121 to prevent the transparent part 312 from sagging downward, which is beneficial for forming a better appearance surface.

[0056] In the embodiment of the present application, the light-emitting unit 4 may further include a printed circuit board (PCB board). The PCB board 42 is located inside the housing 41 and is fixedly mounted on the mounting structure 43. The mounting structure 43 is relatively fixed to the housing 41. The PCB board 42 occupies a small space. A plurality of discretely distributed point light sources are electrically connected to the PCB board 42. The light-emitting unit 4 also includes a light-guiding component 44, which is located on a side of all the point light sources away from the PCB board. The light-guiding component 44 is used to converge the light from each point light source so that as much light as possible is emitted from the light outlet. The light-guiding component 44 may be a convex lens, or of course, an assembly of several lenses. Figure 5 Only one convex lens is shown in .

[0057] The point light source can be an LED lamp.

[0058] Furthermore, the light-emitting unit in the embodiment of the present application further includes an inner mask 45 and an outer mask 46. The inner mask 45 can further homogenize the light so that the light is evenly scattered, and the outer mask 46 can protect other components inside the housing.

[0059] By setting the components in the light-emitting unit 4 and the direction of the light outlet of the light-emitting unit, the angle range of the light emitted from the light outlet can be reasonably determined to meet the lighting requirements of the entire space of the cabin.

[0060] In a specific embodiment, the seat body 3 may include a headrest 31, a backrest 30 and a seat cushion 32. The light-emitting unit 4 is installed on the top of the headrest 31. A tube body 33 is connected between the headrest 31 and the backrest 30. The headrest 31 is connected to the backrest 30 through the tube body 33. The number of tube bodies 33 is usually two, and of course, it can also be more or one. The seat assembly also includes a cable for electrically connecting the light source and the power supply. The power supply can be the above-mentioned vehicle-mounted storage battery or a battery installed separately on the vehicle body 2. The storage battery or battery is usually installed on the chassis of the vehicle body 2. In order to shield the cable, in the embodiment of the present application, the cable is passed through the tube body 33, that is, one end of the cable is connected to the PCB board, and the other end passes through the tube body 33 and is connected to the power supply located on the chassis. The tube body 33 plays a role in positioning the cable to a certain extent. On the other hand, the tube body 33 plays a role in shielding the cable to prevent the cable from being exposed to the user's field of vision, thereby improving the overall interior quality of the vehicle body 2.

[0061] The embodiment of the present application also provides a vehicle 100, which includes a cockpit 101 and the above-mentioned seat assembly, wherein the seat body 3 is installed in the cockpit 101, and the roof 1 of the cockpit 101 can reflect the emitted light of the light source to illuminate the cockpit space.

[0062] ​All the seats in the cockpit 101 of the vehicle 100 can partially use the seat assembly with the light-emitting unit 4 described above in this application. Of course, all the seats in the cockpit 101 of the vehicle 100 can use the seat assembly with the light-emitting unit 4 of this application. This can be reasonably selected according to the specific vehicle model. Figure 1 An example is shown in which the light-emitting units 4 are provided on the seat bodies 3 of the front and rear two rows of seats in the vehicle 100.

[0063] In the embodiments of this application, for other structures of the vehicle 100, reference may be made to the prior art, which will not be elaborated herein.

[0064] In the description of this application, it should be noted that in the embodiments of this application, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features.

[0065] In the description of the embodiments of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that they are connected to each other and the relative positional relationship after connection remains unchanged.

[0066] The orientation terms mentioned in the embodiments of this application, such as "inside", "outside", etc., are only with reference to the direction of the accompanying drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of this application, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the embodiments of this application. In addition, unless otherwise stated in this application, the "plurality" mentioned in this application means two or more.

[0067] In the description of the embodiments of this application, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising such element.

[0068] In this text, specific examples are used to elaborate on the principles and implementation manners of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A seat assembly for a vehicle, characterized in that: Includes the following components: Seat body; A light emitting unit is installed on the seat body, and the light emitting unit includes a light source and a light outlet. The light outlet is located on the seat body and faces the roof of the cabin of the vehicle.

2. The vehicle seat assembly according to claim 1, characterized in that: The light outlet is located at the top of the seat body.

3. The vehicle seat assembly according to claim 2, characterized in that: The seat body includes a frame and a surface layer, the surface layer is located outside the frame, the light-emitting unit is positioned and connected to the frame and located inside the space enclosed by the surface layer, the top of the surface layer includes a transparent part, and the light outlet is arranged opposite to the transparent part.

4. The vehicle seat assembly according to claim 3, characterized in that: The surface layer comprises a main body portion, a through hole is provided at a position of the main body portion opposite to the light outlet, and the transparent portion is installed at the position of the through hole.

5. The vehicle seat assembly according to claim 4, characterized in that: The transparent portion has an extension section, which extends toward one side of the light-emitting unit. The light-emitting unit includes a shell, one side of the shell has the light outlet, the light source is installed inside the shell, the extension section at least partially extends to the periphery or interior of the shell, and the extension section is fixedly connected to the shell.

6. The vehicle seat assembly according to claim 5, characterized in that: The extension section is fixed to the opposite side of the shell by an adhesive layer; Or / and, The outer peripheral wall of the shell also has a step surface, which faces the transparent part, and the extension section abuts against the step surface; or, the shell is also provided with a groove, the opening of the groove faces the transparent part, the extension section is inserted into the groove, and abuts against the bottom of the groove.

7. The vehicle seat assembly according to claim 3, characterized in that: The seat assembly further comprises a snap-fit ​​structure, the light-emitting unit comprises a shell, one side of the shell has the light outlet, the light source is installed inside the shell, and the shell is snap-fitted and fixed to the frame via the snap-fit ​​structure.

8. The vehicle seat assembly according to any one of claims 1 to 7, characterized in that: The light-emitting unit also includes a shell and a PCB board, the PCB board is located inside the shell, and a plurality of discretely distributed point light sources are electrically connected to the PCB board. The light-emitting unit also includes a light-guiding component, and the light-guiding component is located on a side of all the point light sources away from the PCB board.

9. The vehicle seat assembly according to any one of claims 1 to 7, characterized in that: The seat body includes a headrest, a backrest and a cushion, the light-emitting unit is installed on the top of the headrest, a tube body is connected between the headrest and the backrest, and the seat assembly also includes a cable for electrically connecting the light source to a power supply, and the cable is passed through the inside of the tube body.

10. A vehicle, comprising a cabin, wherein the cabin has a roof; The vehicle further comprises at least one seat assembly according to any one of claims 1 to 9, wherein the seat body is mounted on the cabin, and the vehicle roof can reflect at least part of the emitted light of the light source.

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