Seat back plate, seat and vehicle

Abstract

The utility model belongs to the technical field of vehicles, and discloses a seat back plate, a seat and a vehicle, the seat back plate comprises a back plate body, the back plate body is provided with a front side face and a back side face which are oppositely arranged in the thickness direction, the back side face of the back plate body is provided with an installation groove, and the installation groove is configured to contain a lamp source; or, a mounting hole penetrating through the back side surface is formed in the back plate body, and the mounting hole is configured to accommodate a lamp source. According to the seat back plate, the seat comprising the seat back plate and the vehicle comprising the seat back plate, sufficient light can be provided for drivers and passengers with reading requirements, the activity space in the vehicle is not affected, and the user experience feeling is good.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a seat backrest, a seat and a vehicle. Background Art

[0002] With the diversification of the functional requirements of vehicle occupants, it has become normal to install reading lights in vehicles. The reading light can provide extra light to vehicle occupants when the light in the vehicle is insufficient, facilitating reading inside the vehicle. The reading light is usually arranged on the ceiling inside the car, which is at a relatively long distance from the passengers. If a low-intensity light source is used for the reading light, the light provided by it has insufficient illumination brightness, resulting in high eye pressure for vehicle occupants and being prone to damage the eyesight of vehicle occupants; if a high-intensity light source is used for the reading light, the light provided by it has sufficient illumination brightness for vehicle occupants with reading needs to see the text clearly, but it is likely to cause inconvenience to other vehicle occupants, especially the driver in the driver's seat. Summary of the Utility Model

[0003] One of the purposes of the utility model is to provide a seat backrest to solve the problem that the light source occupies the activity space of vehicle occupants inside the vehicle. The second and third purposes of the utility model are to provide a seat and a vehicle to solve the problem of poor comfort of vehicle occupants caused by the light source occupying the space inside the vehicle.

[0004] In the first aspect, an embodiment of the utility model provides a seat backrest. The seat backrest includes a backrest body. The backrest body has a front side and a back side that are oppositely arranged in the thickness direction. An installation groove is arranged on the back side of the backrest body, and the installation groove is configured to accommodate a light source; or an installation hole penetrating the back side is arranged on the backrest body, and the installation hole is configured to accommodate the light source.

[0005] In one embodiment, the bottom of the installation groove protrudes from the front side of the backrest body.

[0006] In one embodiment, a first clamping structure is arranged in the installation groove, and the installation groove is in clamping fit with the light source through the first clamping structure.

[0007] In one embodiment, the first clamping structure includes a first clamping block, and the first clamping block is arranged on the side wall of the installation groove to limit and fix the light source.

[0008] In one embodiment, an unlocking hole is formed on the side wall of the installation groove. The unlocking hole is arranged opposite to the first clamping block and is located on the side of the first clamping block away from the notch of the installation groove.

[0009] In one embodiment, an anti - detachment hole is further formed in the installation groove, and the anti - detachment hole is configured to cooperate with an anti - detachment buckle on the light source to limit the light source from detaching from the installation groove.

[0010] In one embodiment, the seat backboard further includes a mounting bracket fixed on the backboard body, and the mounting bracket is detachably connected to the end of the light source.

[0011] In one embodiment, the mounting bracket is fixed to the front side of the backboard body, and a through - hole for the input end of the light source to pass through is provided on the installation groove.

[0012] In one embodiment, a jack for the light source to be inserted is provided on the mounting bracket, a second clamping structure is arranged in the jack, and the mounting bracket is clamped and cooperated with the light source through the second clamping structure.

[0013] In one embodiment, a table board is movably connected to the back side of the backboard body. The table board includes a storage state and a working state. When the table board is in the working state, it is arranged at an angle with the backboard body, and at least part of the installation groove is located above the table board.

[0014] In one embodiment, the installation groove is arranged as a U - shape with the opening facing downwards.

[0015] In a second aspect, an embodiment of the present invention provides a seat, including a seat main body and the seat backboard described in any of the above embodiments, and the seat backboard is installed on the back side of the seat main body.

[0016] In one embodiment, an anti - detachment hole is arranged in the installation groove, an anti - detachment buckle is arranged on the light source, and the anti - detachment buckle is limited in the anti - detachment hole.

[0017] In one embodiment, the anti - detachment buckle is elastic. The anti - detachment buckle includes a connecting portion and a plurality of hooks arranged in a divergent manner on the connecting portion. The connecting portion is fixedly connected to the light source, and the hooks can be hooked on the periphery of the anti - detachment hole.

[0018] In a third aspect, an embodiment of the present invention provides a vehicle, including a cockpit and at least two rows of seats located in the cockpit. Among any two adjacent rows of seats, at least the front - row part of the seats adopt the seats described in the above embodiments.

[0019] The beneficial effects of the present invention:

[0020] In the embodiments of the present utility model, the seat backrest, the seat and the vehicle proposed can fix the light source on the back side of the seat, so as to provide illumination light to the passengers sitting on the rear seat, meeting the reading needs of the passengers on the rear seat. Moreover, the light source is installed in the installation groove, which will not occupy the activity space of the passengers on the rear seat, and has high comfort. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the back side of the seat backrest in the embodiments of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the front side of the seat backrest in the embodiments of the present utility model;

[0023] Figure 3 is a position relationship diagram of the mounting bracket and the installation groove in the embodiments of the present utility model;

[0024] Figure 4 is a schematic structural diagram of the light source in the embodiments of the present utility model;

[0025] Figure 5 is a schematic diagram of the principle of the light source being snap-fitted into the installation groove in the embodiments of the present utility model;

[0026] Figure 6 is a schematic diagram of the anti-disengagement buckle being limited in the installation groove in the embodiments of the present utility model;

[0027] Figure 7 is a schematic structural diagram of the mounting bracket in the embodiments of the present utility model;

[0028] Figure 8 is a partial structural diagram of the mounting bracket in the embodiments of the present utility model;

[0029] Figure 9 is an electrical connection diagram of the light source and the lamp holder in the embodiments of the present utility model.

[0030] In the figure:

[0031] 10. Backboard body; 11. Installation groove; 111. Unlock hole; 112. Anti-disengagement hole; 113. First clamping block; 1131. First guiding inclined surface; 1132. Second guiding inclined surface; 20. Mounting bracket; 21. Insertion hole; 22. Second clamping block; 221. Third guiding inclined surface; 23. Slot; 24. Deformation groove; 30. Anti-disengagement buckle; 31. Hook; 32. Connection part; 40. Light source; 41. First clamping groove; 42. Limiting block; 43. Insertion block; 50. Lamp holder. Detailed Embodiments

[0032] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0033] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0035] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] Reference Figures 1-9 As shown, in the embodiment of the present utility model, a seat backrest is proposed, which is installed on the back side of the seat. The seat backrest includes a backrest body 10. The backrest body 10 has a front side and a back side that are oppositely arranged in the thickness direction. Here, the back side refers to the side of the backrest body 10 facing away from the passenger sitting on the seat, and the front side refers to the side of the backrest body 10 facing the passenger sitting on the seat. An installation groove 11 or an installation hole is provided on the back side of the backrest body 10, and the installation groove 11 or the installation hole is used to accommodate a light source.

[0037] The above-mentioned seat backrest is provided with an installation groove 11 or an installation hole on the back side, and the light source 40 can be installed in the installation groove 11 or the installation hole. Therefore, it does not occupy the activity space of the passengers sitting on the rear seats, has high comfort, and the light source 40 is protected by the installation groove 11, is not easily collided, and has a long service life.

[0038] In some embodiments, the installation groove 11 is a groove formed when the backrest body 10 is integrally injection-molded. Considering the thickness of the backrest body 10, in order to completely accommodate the light source 40 that can provide sufficient light intensity in the installation groove 11, the bottom of the installation groove 11 protrudes from the front side of the backrest body 10. Of course, in order to prevent the groove wall of the installation groove 11 from interfering with the light emitted by the light source 40, the light-emitting surface of the light source 40 is flush with the notch of the installation groove 11, and the depth of the installation groove 11 is adapted to the size of the light source 40. For example, if the distance between the light-emitting surface and the light-backing surface of the light source 40 is 10 mm, the depth of the installation groove 11 is also set to 10 mm.

[0039] In some embodiments, the light source 40 is detachably fixed in the installation groove 11 to facilitate the replacement of the light source 40. For example, the light source 40 is fixed in the installation groove 11 by means of bolts. Or, by reasonably defining the size of the installation groove 11, the light source 40 and the installation groove 11 are in interference fit. Or, a first clamping structure is arranged in the installation groove 11, and the light source 40 is fixed in the installation groove 11 through the first clamping structure. The first clamping structure can be integrally formed on the backrest body 10.

[0040] Reference Figure 5 As shown, in some embodiments, the first clamping structure includes a first clamping block 113. The first clamping block 113 is arranged on the groove side wall of the installation groove 11. Correspondingly, first clamping grooves 41 are arranged on both sides of the light source 40 along the width direction. The first clamping block 113 can be embedded in the first clamping grooves 41 to realize the clamping and fixing of the light source 40 and the installation groove 11. Specifically, multiple groups of first clamping blocks 113 are arranged at intervals along the length direction of the installation groove 11, and each group includes at least two first clamping blocks 113. The two first clamping blocks 113 are respectively arranged on both sides of the installation groove 11 along the width direction. In order to reduce the difficulty of the first clamping block 113 being clamped into the first clamping groove 41, the first clamping groove 41 penetrates through both ends of the light source 40 along the length direction of the light source 40.

[0041] Specifically, in order to further reduce the difficulty of the first clamping block 113 entering the first clamping groove 41, a first guiding inclined surface 1131 is provided on the side of the first clamping block 113 facing the notch of the installation groove 11. The first guiding inclined surface 1131 gradually moves away from the notch of the installation groove 11 from one end where the first clamping block 113 is connected to the groove wall of the installation groove 11 to the other end. In order to enable the first clamping block 113 to disengage from the first clamping groove 41, thereby facilitating the replacement of the light source 40, a second guiding inclined surface 1132 is provided on the side of the first clamping block 113 facing away from the notch of the installation groove 11. The second guiding inclined surface 1132 gradually approaches the notch of the installation groove 11 from one end where the first clamping block 113 is connected to the groove wall of the installation groove 11 to the other end. For example, the cross-section of the first clamping block 113 is trapezoidal, and the acute angle between the first guiding inclined surface 1131 and the groove side wall of the installation groove 11 is smaller than the acute angle between the second guiding inclined surface 1132 and the groove side wall of the installation groove 11, so that the difficulty of the first clamping block 113 entering the first clamping groove 41 is less than the difficulty of disengaging from the first clamping groove 41.

[0042] In some embodiments, considering the disassembly and assembly difficulty of the light source 40, the dimension of the first clamping block 113 in the width direction of the installation groove 11 is set to be about 1.5 mm. Correspondingly, the dimension of the first clamping groove 41 provided on the light source 40 in the depth direction of the installation groove 11 is set to be about 1.8 mm, and the dimension of the first clamping groove 41 in the thickness direction of the back plate body 10 is set to be about 0.8 mm.

[0043] Continue to refer to Figure 5 As shown, in some embodiments, an unlocking hole 111 is further opened on the groove wall of the installation groove 11. The unlocking hole 111 is opened on the groove wall of the installation groove 11 and is arranged opposite to the first clamping block 113. The unlocking hole 111 is located on the side of the first clamping block 113 facing away from the notch of the installation groove 11, so that the first clamping block 113 can have a certain amount of deformation for convenient unlocking. The size of the unlocking hole 111 is limited to at least allow a single finger or an auxiliary tool such as a crowbar to extend in, so as to apply a force to the first clamping block 113 away from the first clamping groove 41, thereby realizing the unlocking of the light source 40 and the installation groove 11.

[0044] It can be understood that in order to facilitate the disassembly of the light source 40, the seat back plate is detachably connected to the seat body of the seat. When the light source 40 needs to be taken out of the installation groove 11, the seat back plate is first detached from the seat body. In some embodiments, the seat back plate is bolted to the seat body. It can be understood that the seat body includes a seat board for the passengers to sit on and a front side board, and the connection between the seat back plate and the seat body refers to the connection between the seat back plate and the front side board.

[0045] In other embodiments, the first clamping structure includes a first clamping groove 41. At least two first clamping grooves 41 are formed on the two side walls of the mounting groove 11 along the width direction. Correspondingly, first clamping blocks 113 are arranged on both sides of the light source 40 along the width direction. The first clamping blocks 113 can be embedded in the first clamping grooves 41 to realize the clamping and fixing of the light source 40 and the mounting groove 11.

[0046] Refer to Figure 4 and Figure 6 As shown, in some embodiments, an anti - detachment buckle 30 is provided on the light source 40, and an anti - detachment hole 112 is formed in the groove wall of the mounting groove 11. The anti - detachment buckle 30 is limited in the anti - detachment hole 112 and can be fixedly connected to the light source 40. The anti - detachment hole 112 and the anti - detachment buckle 30 cooperate to limit the light source 40 in the mounting groove 11, so as to avoid the injury to the passengers caused by the detachment of the light source 40 when the seat backrest is collided.

[0047] In some embodiments, the anti - detachment buckle 30 is integrally formed of elastic materials including but not limited to silicone, rubber, etc. The anti - detachment buckle 30 includes a connecting portion 32 and a plurality of hooks 31. The connecting portion 32 is used to connect with the light source 40 in the mounting groove 11. The plurality of hooks 31 are arranged in a divergent manner on the connecting portion 32, and the hooks 31 can be hooked on the periphery of the anti - detachment hole 112 to limit the light source 40 from detaching from the mounting groove 11.

[0048] In some embodiments, the anti - detachment buckle 30 includes two hooks 31 arranged in a V - shape. The distance between the ends of the two hooks 31 away from the connecting portion 32 is greater than the width of the anti - detachment hole 112 along the distribution direction of the two hooks 31, so as to limit the ends of the hooks 31 away from the connecting portion 32 from entering the mounting groove 11. Of course, multiple hooks 31 of the anti - detachment buckle 30 can also be provided, for example, 3 hooks can be provided.

[0049] When the anti - detachment buckle 30 is assembled with the light source 40, first fix the light source 40 in the mounting groove 11, and then fix the anti - detachment buckle 30 on the light source 40 by a method including but not limited to bonding. When it is necessary to disassemble the light source 40 from the mounting groove 11, apply a force that makes the two hooks 31 approach each other to make the distance between the two hooks 31 less than the width of the anti - detachment hole 112 along the distribution direction of the two hooks 31.

[0050] In other embodiments, the anti - detachment buckle 30 still includes a connecting portion 32 and two hooks 31 arranged in a V - shape. Different from the anti - detachment buckle 30 in the above - mentioned embodiments having elasticity, the two hooks 31 are hinged to the connecting portion 32, and an elastic member such as a spring is connected between the two hooks 31. The elastic member is used to keep the two hooks 31 in a tendency of moving away from each other, so as to limit the ends of the hooks 31 away from the connecting portion 32 from entering the mounting groove 11.

[0051] In some embodiments, the installation groove 11 is arranged in a U shape with the opening facing downward, and the light source 40 is conformally fixed in the installation groove 11, that is, the light source 40 also presents a U shape with the opening facing downward. The two anti - detachment holes 112 are respectively arranged at two corners of the installation groove 11. The light source 40 arranged in a U shape forms a small shadow area during the lighting process, having a better lighting effect and eye - protection effect. It can be understood that the light source 40 can adopt a flexible light strip and be bent into a U shape limited by the shape of the installation groove 11 when fixed in the installation groove 11, or can be directly set as a U - shaped light strip adapted to the shape of the installation groove 11. More specifically, the light source 40 adopts a multi - point light - emitting light strip.

[0052] In some embodiments, a table board is also movably connected to the back side of the back - plate body 10. The table board includes a storage state and a working state arranged at an angle with the back - plate body 10. When the passengers in the rear - row seats have a reading need, the table board can be maintained in the working state to provide a placement space for reading carriers such as books, tablets or mobile phones. The installation groove 11 is at least partially located above the table board in the working state, and the light emitted by the light source 40 can illuminate the upper surface of the table board in the working state. As for the storage state, the table board can be abutted against the back - plate body 10 to avoid the table board affecting the activity space of the passengers.

[0053] In some embodiments, the outer contour of the installation groove 11 is as large as possible under the size limitation of the back - plate body 10, so that the light emitted by the light source 40 can cover the upper surface of the table board in the second state. For example, the installation groove 11 arranged in a U shape is located on the outer periphery of the table board in the storage state.

[0054] In order to achieve the lighting effect, the light source 40 needs to be connected to a power source to be energized. For the purpose of facilitating the replacement of the light source 40, the seat back plate further includes a mounting bracket 20 fixed to the back - plate body 10 by a detachable method including but not limited to screwing and clamping. The mounting bracket 20 is configured to fix the lamp socket 50 to the back - plate body 10. At the same time, the mounting bracket 20 is also detachably connected to the end of the light source 40 to further fix the light source 40. When the light source 40 is connected to the mounting bracket 20, it is electrically connected to the lamp socket 50. The lamp socket 50 is a device for fixing the position of the lamp and connecting the lamp contacts to the power source, which belongs to the prior art and will not be elaborated here.

[0055] In some embodiments, a jack 21 is arranged on the mounting bracket 20, and a second clamping structure is also arranged in the jack 21. For example, the second clamping structure includes a second clamping block 22, and the second clamping block 22 can cooperate with the light source 40 to limit the input end of the light source 40 in the jack 21. Refer to Figure 7As shown, in order to reduce the difficulty of inserting the light source 40 into the jack 21, a third guiding inclined surface 221 is provided on the second clamping block 22 facing the orifice direction of the jack 21. The third guiding inclined surface 221 gradually moves away from the orifice direction of the jack 21 from the end where the second clamping block 22 is connected to the hole wall of the jack 21 towards the end away from the hole wall. It can be understood that in order to cooperate with the second clamping block 22 to achieve clamping and limiting, a second clamping groove or a limiting block 42 is provided on the outer peripheral wall of the light source 40. The second clamping block 22 can be clamped into the second clamping groove to achieve the clamping fit between the light source 40 and the mounting bracket 20, or when the input end of the light source 40 is inserted into the jack 21, the limiting block 42 can squeeze the second clamping block 22 and move to the side of the second clamping block 22 facing away from the orifice of the jack 21, thereby achieving the clamping fit between the light source 40 and the mounting bracket 20. Specifically, two second clamping blocks 22 are symmetrically arranged on the hole wall of the jack 21 to reduce the possibility of the light source 40 shaking in the jack 21, thereby avoiding the generation of noise.

[0056] In order to enable the light source 40 to be separated from the jack 21, a deformation groove 24 is further provided on the hole wall of the jack 21 along the length direction of the jack 21. The deformation groove 24 and the second clamping block 22 are circumferentially misaligned on the hole wall of the jack 21. The deformation groove 24 divides the hole wall of the jack 21 into multiple sub-parts. When the light source 40 needs to be removed from the mounting bracket 20, only an outward force along the radial direction of the jack 21 needs to be applied to the sub-parts.

[0057] Based on the settings of the second clamping block 22 and the limiting block 42, in some embodiments, a slot 23 is further provided on the mounting bracket 20, and a plug 43 is provided on the outer peripheral wall of the light source 40. The slot is provided on the hole wall of the jack 21 and extends along the radial direction of the jack 21. The slot 23 cooperates with the plug 43 to perform radial limiting on the light source 40.

[0058] In other embodiments, the second clamping structure can also be a second clamping groove, and a second clamping block is provided on the light source 40 to cooperate with it. Or, the limiting and fixing of the light source 40 by the jack 21 can also be achieved by restricting the aperture size of the jack 21, which will not be elaborated here. Or the light source 40 can also be fixed to the mounting bracket 20 by magnetic attraction connection and electrically connected to the lamp socket 50, which will not be elaborated here.

[0059] In some embodiments, the mounting bracket 20 is fixed to the front side of the backboard body 10 so as not to occupy the activity space of the passengers in the rear seats. A through hole is provided at one end of the mounting groove 11 close to the mounting bracket 20. The input end of the light source 40 can pass through the through hole and out of the mounting groove 11 to be connected to the mounting bracket 20. Specifically, based on the mounting groove 11 being U-shaped, there are two mounting brackets 20, and the two mounting brackets 20 are respectively located at the two ends of the length of the mounting groove 11.

[0060] In an embodiment of the present utility model, a seat is further proposed, which includes a seat main body, a seat backrest, and a light source. The seat backrest is installed on the back side of the seat main body, and the light source is arranged in the installation groove.

[0061] In an embodiment of the present utility model, a vehicle is further proposed, which includes a cockpit and at least two rows of seats located in the cockpit. Among any two adjacent rows of seats, at least some of the seats in the front row adopt the seats in any of the above embodiments.

[0062] Since both the seat and the vehicle include the seat backrest in the above embodiment, they also have all the beneficial effects of the seat backrest, which will not be elaborated here.

[0063] In some embodiments, the vehicle further includes a ceiling lamp arranged on the top of the cockpit. The ceiling lamp and the light source can cooperate to meet various lighting requirements in the cockpit.

[0064] At the same time, a control member for controlling the on / off and brightness of the ceiling lamp and the light source is also arranged on the vehicle. The control member includes, but is not limited to, a button or a touch screen.

[0065] Obviously, the above embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. Seat backrest, characterized in that, The seat back plate comprises a back plate body (10), wherein the back plate body (10) has a front side surface and a back side surface which are arranged opposite to each other in the thickness direction; The back side surface of the back panel body (10) is provided with a mounting groove (11), and the mounting groove (11) is configured to accommodate a light source (40); or, the back panel body (10) is provided with a mounting hole penetrating the back side surface, and the mounting hole is configured to accommodate a light source (40).

2. The seat backrest according to claim 1, wherein, The bottom of the installation groove (11) protrudes from the front side surface of the back plate body (10).

3. The seat backrest according to claim 1, characterized in that, A first clamping structure is provided in the installation groove (11), and the installation groove (11) is clamped and matched with the light source (40) via the first clamping structure.

4. The seat backrest according to claim 3, characterized in that, The first clamping structure comprises a first clamping block (113), and the first clamping block (113) is arranged on a groove side wall of the installation groove (11) to limit and fix the light source (40).

5. The seat backrest according to claim 4, wherein, An unlocking hole (111) is provided on the groove wall of the installation groove (11), and the unlocking hole (111) is arranged in alignment with the first clamping block (113) and is located on the side of the groove opening of the first clamping block (113) facing away from the installation groove (11), so as to apply an external force to the first clamping block (113) through the unlocking hole (111).

6. The seat backrest according to claim 1, characterized in that, An anti-drop hole (112) is also provided in the installation slot (11), and the anti-drop hole (112) is configured to cooperate with an anti-drop buckle (30) on the light source (40) to restrict the light source (40) from dropping out of the installation slot (11).

7. The seat backrest according to claim 1, characterized in that, The seat back plate further comprises a mounting bracket (20) fixed on the back plate body (10), and the mounting bracket (20) is detachably connected to the end of the light source (40).

8. The seat back according to claim 7, characterized in that, The mounting bracket (20) is fixed to the front side of the back plate body (10), and the mounting groove (11) is provided with a through hole for the input end of the light source (40) to pass through.

9. The seat back according to claim 7, characterized in that, The mounting bracket (20) is provided with a socket (21) for inserting the light source (40), a second clamping structure is provided in the socket (21), and the mounting bracket (20) is clamped with the light source (40) via the second clamping structure.

10. The seat backrest according to any one of claims 1-9, characterized in that, The back side surface of the back panel body (10) is movably connected to a table top, and the table top includes a storage state and a working state. When the table top is in the working state, it is arranged at an angle with the back panel body (10), and the installation groove (11) is at least partially located above the table top.

11. The seat back according to any one of claims 1-9, characterized in that, The installation groove (11) is configured to be U-shaped with the opening facing downward.

12. Seat, characterized in that, It comprises a seat body, a light source (40) and a seat back plate as described in any one of claims 1 to 11, wherein the seat back plate is installed on the back side of the seat body, and the light source (40) is arranged in the installation groove (11).

13. The seat according to claim 12, characterized in that, An anti-drop hole (112) is provided in the installation groove (11), and an anti-drop buckle (30) is provided on the light source (40), wherein the anti-drop buckle (30) is limited to the anti-drop hole (112).

14. The seat according to claim 13, characterized in that, The anti-detachment buckle (30) is elastic. The anti-detachment buckle (30) includes a connecting portion (32) and a plurality of hooks (31) arranged in a divergent manner on the connecting portion (32). The connecting portion (32) is fixedly connected to the light source (40), and the hooks (31) can be hooked on the periphery of the anti-detachment hole (112).

15. A vehicle, comprising a cockpit and at least two rows of seats located in the cockpit, characterized in that, Among any two adjacent rows of the seats, at least the front row of seats adopts the seat according to any one of claims 12-14.

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