Vehicle seat backrest, vehicle seat and vehicle

Abstract

The application provides a vehicle seat backrest, a vehicle seat and a vehicle. The vehicle seat backrest comprises a backrest framework and an angle adjuster assembly, the backrest framework comprises a carbon fiber outer layer and a foam inner core, the carbon fiber outer layer wraps the foam inner core to form a cored structure, the backrest framework further comprises a backrest body, a first side wall and a second side wall, the first side wall and the second side wall are respectively connected to the two sides of the backrest body and oppositely distributed, and at least one of the backrest body, the first side wall and the second side wall is the cored structure. The angle adjuster assembly is connected between the first side wall and the second side wall. In this way, the carbon fiber outer layer can effectively increase the rigidity of the backrest framework, the foam inner core can reduce the number of carbon fiber layers, effectively improve the forming efficiency of the carbon fiber outer layer while reducing the weight, the edge transition after the carbon fiber outer layer wraps the foam inner core is natural, the carbon fiber lines are continuous, and the carbon fiber outer layer on the inner and outer sides of the backrest framework can be exposed without cutting hands.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a vehicle seat backrest, a vehicle seat and a vehicle. BACKGROUND

[0002] In the related art vehicle seat, the backrest of the vehicle seat is mostly a pure carbon fiber structure. In order to increase the strength and rigidity of the framework, multiple layers of carbon fiber are usually laid, which is time-consuming and costly, and the weight is also heavy. Moreover, the edge of the pure carbon fiber framework structure is relatively sharp, which needs to be trimmed and polished, increasing the process, and the hand is still easy to be injured after polishing.

[0003] In addition, in order to increase the rigidity, some carbon fiber frameworks are reinforced with pure resin injection molding ribs on the inside of the framework, but the strength of the resin is limited, and the rigidity of the backrest framework is not obviously increased. At the same time, this scheme needs secondary molding, which is low in efficiency. SUMMARY

[0004] The embodiments of the present application provide a vehicle seat backrest, a vehicle seat or a vehicle to improve at least one of the above technical problems.

[0005] The embodiments of the present application achieve the above-mentioned purposes through the following technical solutions.

[0006] The embodiments of the present application provide a vehicle seat backrest, which comprises a backrest framework and an angle adjuster assembly. The backrest framework comprises a carbon fiber outer layer and a foam inner core. The carbon fiber outer layer wraps the foam inner core to form a cored structure. The backrest framework further comprises a backrest body, a first side wall and a second side wall. The first side wall and the second side wall are respectively connected to the two sides of the backrest body and are oppositely distributed. At least one of the backrest body, the first side wall and the second side wall is a cored structure. The angle adjuster assembly is connected between the first side wall and the second side wall.

[0007] In some embodiments, the foam inner core is a PMI foam inner core.

[0008] In some embodiments, the first side wall is a cored structure. The vehicle seat backrest further comprises a first embedded part. The first embedded part is arranged on the first side wall and embedded in the foam inner core. The first embedded part is provided with a first connecting part. The first connecting part is connected with the angle adjuster assembly.

[0009] In some embodiments, the first connecting part is provided with a first connecting hole. The angle adjuster assembly is arranged through the carbon fiber outer layer and connected to the first embedded part through the first connecting hole.

[0010] In some embodiments, the angle adjuster assembly comprises a first angle adjuster bracket and a first fastener. The first angle adjuster bracket is located on the side of the first side wall facing the second side wall. The first fastener is arranged through the first angle adjuster bracket and installed in the first connecting hole.

[0011] In some embodiments, the second side wall is a core-sheath structure, and the vehicle seat back further comprises a second embedded part, the second embedded part is arranged on the second side wall and embedded in the foam inner core, and the second embedded part is provided with a second connecting portion connected with the angle adjuster assembly.

[0012] In some embodiments, the second connecting portion is provided with a second connecting hole, and the angle adjuster assembly is arranged in the carbon fiber outer layer and connected to the second embedded part through the second connecting hole.

[0013] In some embodiments, the angle adjuster assembly comprises a second angle adjuster bracket and a second fastener, the second angle adjuster bracket is located on the side of the second side wall facing the first side wall, and the second fastener is arranged in the second angle adjuster bracket and installed in the second connecting hole.

[0014] The embodiments of the present application also provide a vehicle seat, which comprises a seat cushion and the vehicle seat back of any of the above-mentioned embodiments, and the vehicle seat back is connected to the seat cushion.

[0015] The embodiments of the present application also provide a vehicle, which comprises a vehicle body and the vehicle seat of any of the above-mentioned embodiments, and the vehicle seat is assembled on the vehicle body.

[0016] In the vehicle seat back, the vehicle seat and the vehicle provided by the embodiments of the present application, the back frame of the vehicle seat back comprises a carbon fiber outer layer and a foam inner core, the carbon fiber outer layer wraps the foam inner core to form a core-sheath structure, and at least one of the back body, the first side wall and the second side wall of the back frame is a core-sheath structure. In this way, the carbon fiber outer layer can take advantage of the high strength of carbon fiber to effectively increase the rigidity of the back frame, while the foam inner core can reduce the number of carbon fiber layers, thereby reducing weight and effectively improving the forming efficiency of the carbon fiber outer layer. In addition, the foam inner core can be processed into various shapes with less modeling constraints and natural and beautiful edge transitions, which helps the edge transition of the carbon fiber outer layer after wrapping the foam inner core to be natural, the carbon fiber pattern to be continuous, and the carbon fiber outer layer on the inner and outer sides of the back frame to be exposed without cutting hands, thereby effectively reducing the risk of scratching personnel. The first side wall and the second side wall are respectively connected to the two sides of the back body and oppositely distributed, and the angle adjuster assembly is connected between the first side wall and the second side wall. In this way, the angle adjuster assembly is arranged on the inner side of the back frame, which helps the back frame to better protect the angle adjuster assembly and helps to avoid the situation that the angle adjuster assembly is arranged on the outer side of the back frame and is easily damaged by collision with other objects. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings needed in the description of the embodiments will be briefly introduced. Obviously, the accompanying drawings in the following description only show some of the embodiments of the present application, and all other drawings obtained by those skilled in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0018] Figure 1 A structural schematic diagram of a vehicle seat back provided by the embodiment of the present application is shown.

[0019] Figure 2 A structural schematic diagram of another view of the vehicle seat back of Figure 1 is shown.

[0020] Figure 3 A sectional view along line III-III of the vehicle seat back of Figure 2 is shown.

[0021] Figure 4 A structural schematic diagram of a vehicle seat provided by the embodiment of the present application is shown.

[0022] Figure 5 A structural schematic diagram of a vehicle provided by the embodiment of the present application is shown. DETAILED DESCRIPTION

[0023] In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings needed in the description of the embodiments will be briefly introduced. Obviously, the accompanying drawings in the following description only show some of the embodiments of the present application, and all other drawings obtained by those skilled in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0024] In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings needed in the description of the embodiments will be briefly introduced. Obviously, the accompanying drawings in the following description only show some of the embodiments of the present application, and all other drawings obtained by those skilled in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0025] Referring to Figures 1 to 3 , the embodiment of the present application provides a vehicle seat back 100, which can be combined with a seat cushion to form a vehicle seat.

[0026] The vehicle seat back 100 comprises a backrest framework 10 and an angle adjuster assembly 20, the angle adjuster assembly 20 is arranged on the backrest framework 10, and the angle adjuster assembly 20 can realize the adjusting function of the backrest framework 10.

[0027] The backrest framework 10 comprises a carbon fiber outer layer 11 and a foam inner core 12, and the carbon fiber outer layer 11 wraps the foam inner core 12 to form a core-sheath structure. In this way, the carbon fiber outer layer 11 can take advantage of the high strength of carbon fiber to effectively increase the stiffness of the backrest framework 10, while the foam inner core 12 can reduce the number of carbon fiber plies, effectively improving the forming efficiency of the carbon fiber outer layer 11 while reducing weight. In addition, the foam inner core 12 can be processed into various shapes, with less modeling constraints, natural and beautiful edge transitions, which helps the edge transition of the carbon fiber outer layer 11 after wrapping the foam inner core 12 to be natural, the carbon fiber pattern is continuous, and the carbon fiber outer layer 11 on the inside and outside of the backrest framework 10 can be exposed without cutting hands, effectively reducing the risk of scratching personnel.

[0028] In some embodiments, the core-sheath structure can be formed by wet compression molding (WCM), resin transfer molding (RTM), autoclave, etc. For example, during the process of manufacturing the core-sheath structure, the carbon fiber outer layer, the foam inner core, and the upper carbon fiber outer layer can be sequentially laid on the forming mold in the order of lower carbon fiber outer layer, foam inner core, and upper carbon fiber outer layer, and then the laid mold is placed in a set temperature and pressure environment for curing and forming. After that, the mold is demolded and trimmed to obtain the core-sheath structure. For another example, during the process of manufacturing the core-sheath structure, the carbon fiber prepreg can be cured and formed under certain temperature and pressure conditions, then the foam inner core 12 is bonded and cured with the cured carbon fiber material, and finally the mold is demolded and trimmed.

[0029] In some embodiments, the carbon fiber outer layer 11 can be laid with multiple layers of carbon fiber single layers, for example, the carbon fiber outer layer 11 can be laid with 3 to 10 layers of carbon fiber single layers, for example, 3 layers of carbon fiber single layers, 4 layers of carbon fiber single layers, 5 layers of carbon fiber single layers, 6 layers of carbon fiber single layers, 7 layers of carbon fiber single layers, 8 layers of carbon fiber single layers, 9 layers of carbon fiber single layers, or 10 layers of carbon fiber single layers.

[0030] In some embodiments, the layup angle of the multiple layers of carbon fiber single layers in the carbon fiber outer layer 11 can be 0°, ±45°, 90°, etc. Balanced layup angle can reduce residual stress generated during the curing process of the carbon fiber composite part, thereby avoiding warping deformation of the carbon fiber outer layer 11 and facilitating the stability of the carbon fiber outer layer 11.

[0031] In some embodiments, the thickness of the carbon fiber single layer can be 0.1 mm to 1 mm, for example, the thickness of the carbon fiber single layer can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, or any value between any two adjacent values. In this way, the carbon fiber single layer with appropriate thickness is convenient to manufacture and form.

[0032] In some embodiments, the foam inner core 12 can be a Polymethacrylimide (PMI) foam inner core. In this way, the foam inner core 12 has the characteristics of high strength and light weight, strong creep resistance, high temperature resistance, and moisture resistance, which is conducive to the maintenance of the core-sheath structure in the later period and saves maintenance costs.

[0033] In some embodiments, the foam inner core 12 can be a Polymethacrylimide (PMI) foam inner core. In this way, the foam inner core 12 has the characteristics of high strength and light weight, strong creep resistance, high temperature resistance, and moisture resistance, which is conducive to the maintenance of the core-sheath structure in the later period and saves maintenance costs.

[0034] In some embodiments, the backrest framework 10 further comprises a backrest body 13, a first side wall 14, and a second side wall 15, and the first side wall 14 and the second side wall 15 are connected to the backrest body 13. For example, the first side wall 14 and the second side wall 15 are respectively connected to the two sides of the backrest body 13, and the first side wall 14 and the second side wall 15 are oppositely distributed.

[0035] At least one of the backrest body 13, the first side wall 14, and the second side wall 15 is a core-sheath structure. For example, the backrest framework 10 can be designed as a partial core-sheath structure, for example, the backrest body 13 can be a core-sheath structure; for example, the first side wall 14 can be a core-sheath structure; for example, the second side wall 15 can be a core-sheath structure; for example, the backrest body 13 and the first side wall 14 can be core-sheath structures; for example, the backrest body 13 and the second side wall 15 can be core-sheath structures; for example, the first side wall 14 and the second side wall 15 can be core-sheath structures. For example, the backrest framework 10 can be designed as an overall core-sheath structure, for example, the backrest body 13, the first side wall 14, and the second side wall 15 can be core-sheath structures.

[0036] In this way, in the case of designing the backrest framework 10 as a partial core-sheath structure, the rigidity and strength of the backrest framework 10 at the local position can be improved; in the case of designing the backrest framework 10 as an overall core-sheath structure, the rigidity and strength of the backrest framework 10 as a whole can be improved, and the number of parts of the backrest framework 10 can be reduced, without the need to add spring support and reduce the addition of buckle connection and other structures. In addition, the partial or overall core-sheath structure of the backrest framework 10 helps to improve the flexibility of the design of the core-sheath structure of the backrest framework 10.

[0037] In some embodiments, the angle adjuster assembly 20 is connected between the first side wall 14 and the second side wall 15. In this case, the side of the first side wall 14 facing the second side wall 15 can be the inner side of the backrest framework 10, and the side of the first side wall 14 facing away from the second side wall 15 can be the outer side of the backrest framework 10; the side of the second side wall 15 facing the first side wall 14 can be the inner side of the backrest framework 10, and the side of the second side wall 15 facing away from the first side wall 14 can be the outer side of the backrest framework 10. In this way, the angle adjuster assembly 20 is placed on the inner side of the backrest framework 10, which helps to better protect the angle adjuster assembly 20 from the backrest framework 10, and helps to avoid the situation that the angle adjuster assembly 20 is placed on the outer side of the backrest framework 10 and is easily damaged by collision with other objects.

[0038] In some embodiments, the angle adjuster assembly 20 can be bonded to the first side wall 14, and the angle adjuster assembly 20 and the first side wall 14 can also be connected through an intermediate piece.

[0039] In some embodiments, the angle adjuster assembly 20 can be bonded to the second side wall 15, and the angle adjuster assembly 20 and the second side wall 15 can also be connected through an intermediate piece.

[0040] In some embodiments, the first side wall 14 can be a cored structure, so that the first embedded part 30 can be arranged in the foam inner core 12 of the first side wall 14. For example, the vehicle seat backrest 100 can further include a first embedded part 30, which can be arranged on the first side wall 14 and embedded in the foam inner core 12.

[0041] The first embedded part 30 can be provided with a first connecting part 31 connected with the angle adjuster assembly 20. In this way, the first embedded part 30 helps to avoid the angle adjuster assembly 20 being connected to the first side wall 14 by bonding, thereby avoiding the situation that the bonding connection is weak in strength and the glue joint is prone to aging failure over a long period of time.

[0042] In some embodiments, the first embedded part 30 and the foam inner core 12 are integrally formed, for example, the first embedded part 30 can be placed in the mold of the foam inner core 12 before forming, and then the foaming raw material for making the foam inner core 12 is injected into the mold, so that the first embedded part 30 and the foam inner core 12 are integrally formed. Since the first embedded part 30 and the foam inner core 12 are integrally formed, the first embedded part 30 and the foam inner core 12 are arranged more compactly, which improves the integration of the vehicle seat backrest 100 and helps to reduce the space occupied by the first embedded part 30 on the outside of the first side wall 14.

[0043] In some embodiments, the first embedded part 30 can be a metal part, which helps to improve the strength of the first embedded part 30 and also helps to prevent the first embedded part 30 from melting during the process of integrating the foam inner core 12.

[0044] In some embodiments, the first connecting part 31 can be provided with a first connecting hole 311, and the angle adjuster assembly 20 can be arranged in the carbon fiber outer layer 11 and connected to the first embedded part 30 through the first connecting hole 311. For example, the first connecting hole 311 can be a threaded hole, so that the angle adjuster assembly 20 and the first embedded part 30 can be connected by screwing, so that they have better connection strength.

[0045] In some embodiments, the first connecting hole 311 can be exposed to the first side wall 14, so as to facilitate the connection of the angle adjuster assembly 20 to the first embedded part 30.

[0046] In some embodiments, the number of first connecting holes 311 can be multiple, and multiple first connecting holes 311 can be distributed at intervals on the first connecting part 31. For example, the number of first connecting holes 311 can be two, three, four, five or other numbers.

[0047] In some embodiments, the angle adjuster assembly 20 can include a first angle adjuster bracket 21 and a first fastener 22, the first angle adjuster bracket 21 can be located on the side of the first side wall 14 facing the second side wall 15, and the first fastener 22 can be arranged in the first angle adjuster bracket 21 and installed in the first connecting hole 311. In this way, it helps to ensure that the first fastener 22 is located on the inner side of the backrest framework 10, avoiding the situation that the first fastener 22 is placed on the outer side of the backrest framework 10 and is loosened by long-term collision with other objects.

[0048] In some embodiments, the first side wall 14 can include a first protruding part 141 and a first recessed part 142, and the first protruding part 141 and the first recessed part 142 are connected. In the case of normal vertical use of the vehicle seat backrest 100, the first protruding part 141 can be located above the first recessed part 142.

[0049] The distance between the first protruding part 141 and the second side wall 15 can be less than the distance between the first recessed part 142 and the second side wall 15, the first embedded part 30 can be embedded in the foam inner core 12 of the first recessed part 142, and the first angle adjuster bracket 21 can be located in the first recessed part 142. In this way, after the first angle adjuster bracket 21 is connected with the first embedded part 30, the distance between the first angle adjuster bracket 21 and the second side wall 15 is not too small, which helps to have appropriate space between the first side wall 14 and the second side wall 15 to assemble the decorative parts and other accessories, and the first protruding part 141 also helps to prevent the subsequently assembled decorative parts and other accessories from pressing the first angle adjuster bracket 21.

[0050] In some embodiments, the first protrusion 141 can be spaced apart from the second side wall 15 by a distance that is less than or equal to a distance between the first angle adjuster bracket 21 and the second side wall 15, which helps to ensure that the first angle adjuster bracket 21 does not protrude toward the second side wall 15 beyond the first protrusion 141.

[0051] In some embodiments, the second side wall 15 can have a core-sheath structure, so that a second embedded part 40 can be disposed in the foam inner core 12 of the second side wall 15. For example, the vehicle seat backrest 100 can further include the second embedded part 40, which can be disposed in the second side wall 15 and embedded in the foam inner core 12.

[0052] The second embedded part 40 can be provided with a second connecting portion 41 that is connected to the angle adjuster assembly 20. In this way, the second embedded part 40 helps to avoid the angle adjuster assembly 20 being connected to the second side wall 15 by adhesion, thereby avoiding the weak connection strength of the adhesion method and the long-term aging failure of the adhesive.

[0053] In some embodiments, the second embedded part 40 and the foam inner core 12 are integrally formed, for example, the second embedded part 40 can be pre-placed in a mold for the foam inner core 12 after being formed, and then the foaming raw material for making the foam inner core 12 is injected into the mold, so that the second embedded part 40 and the foam inner core 12 are integrally formed. Since the second embedded part 40 and the foam inner core 12 are integrally formed, the arrangement between the second embedded part 40 and the foam inner core 12 is relatively compact, which improves the integration of the vehicle seat backrest 100 and helps to reduce the space occupied by the second embedded part 40 outside the second side wall 15.

[0054] In some embodiments, the second embedded part 40 can be a metal part, which helps to improve the strength of the second embedded part 40 and also helps to prevent the second embedded part 40 from melting during the integral forming process with the foam inner core 12.

[0055] In some embodiments, the second connecting portion 41 can be provided with a second connecting hole 411, and the angle adjuster assembly 20 can be disposed in the carbon fiber outer layer 11 and connected to the second embedded part 40 through the second connecting hole 411. For example, the second connecting hole 411 can be a threaded hole, so that the angle adjuster assembly 20 and the second embedded part 40 can be connected by a threaded connection, which has good connection strength between them.

[0056] In some embodiments, the second connecting hole 411 can be exposed to the second side wall 15, thereby facilitating the connection of the angle adjuster assembly 20 to the second embedded part 40.

[0057] In some embodiments, the second connecting hole 411 can be in a plurality, and the plurality of second connecting holes 411 can be distributed at intervals on the second connecting portion 41. For example, the number of second connecting holes 411 can be two, three, four, five, or other numbers.

[0058] In some embodiments, the angle adjuster assembly 20 can include a second angle adjuster bracket 23 and a second fastener 24, the second angle adjuster bracket 23 can be located on the second side wall 15 towards one side of the second side wall 15, and the second fastener 24 can be threaded through the second angle adjuster bracket 23 and installed in the second connecting hole 411. In this way, it helps to ensure that the second fastener 24 is located on the inner side of the backrest framework 10, avoiding the situation that the second fastener 24 is placed on the outer side of the backrest framework 10 and is loosened by long-term collision with other objects.

[0059] In some embodiments, the second side wall 15 can include a second protrusion 151 and a second recess 152, and the second protrusion 151 and the second recess 152 are connected. In the case of normal vertical use of the vehicle seat backrest 100, the second protrusion 151 can be located above the second recess 152.

[0060] The distance between the second protrusion 151 and the first side wall 14 can be less than the distance between the second recess 152 and the first side wall 14, the second embedded part 40 can be embedded in the foam inner core 12 of the second recess 152, and the second angle adjuster bracket 23 can be located in the second recess 152. In this way, after the second angle adjuster bracket 23 is connected with the second embedded part 40, the distance between the second angle adjuster bracket 23 and the first side wall 14 is not too small, which helps to have appropriate space between the first side wall 14 and the second side wall 15 for assembling decorative parts and other accessories, and the second protrusion 151 also helps to block the subsequent assembled decorative parts and other accessories from pressing the second angle adjuster bracket 23.

[0061] In some embodiments, the distance between the second protrusion 151 and the first side wall 14 can be less than or equal to the distance between the second angle adjuster bracket 23 and the first side wall 14, which helps to ensure that the second angle adjuster bracket 23 will not protrude towards the first side wall 14 from the second protrusion 151.

[0062] In some embodiments, the angle adjuster assembly 20 can further include a first angle adjuster 25, a second angle adjuster 26, and a connecting rod 27, the first angle adjuster 25 is connected to the first angle adjuster bracket 21, the second angle adjuster 26 is connected to the second angle adjuster bracket 23, and the connecting rod 27 can be connected to the first angle adjuster 25 and the second angle adjuster 26. In this way, it helps to achieve synchronous adjustment of the left and right sides of the vehicle seat backrest 100.

[0063] In some embodiments, the recliner assembly 20 can further include a driving motor, which can be located between the first side wall 14 and the second side wall 15, and a driving end of the driving motor can be connected to the connecting rod 27. In this way, the driving motor can help to realize the electric adjustment function of the vehicle seat backrest 100, so as to improve the comfort without manual adjustment by the user.

[0064] In some embodiments, the backrest body 13 can be provided with a safety belt through hole 131 for mounting a safety belt shoulder strap.

[0065] With reference to Figure 4 The embodiments of the present application further provide a vehicle seat 200, which can be used as a front seat, a second-row seat, a third-row seat, or the like. The vehicle seat includes a seat cushion and the vehicle seat backrest 100 of any of the above embodiments, and the vehicle seat backrest 100 is connected to the seat cushion. For example, the vehicle seat backrest 100 can be hinged to the seat cushion, and the vehicle seat backrest 100 can adjust the angle between the vehicle seat backrest 100 and the seat cushion through the recliner assembly 20.

[0066] With reference to Figure 5 The embodiments of the present application further provide a vehicle 1000, which can be a vehicle powered by traditional energy such as gasoline or diesel, or a new energy vehicle such as a hybrid electric vehicle, a pure electric vehicle, or a fuel cell electric vehicle. In other embodiments, the vehicle 1000 can also be other types of vehicles. The vehicle 1000 includes a vehicle body 300 and the vehicle seat 200 of any of the above embodiments, and the vehicle seat 200 is assembled to the vehicle body 300.

[0067] In the vehicle seat backrest 100, the vehicle seat 200 and the vehicle 1000 provided by the embodiment of the present application, the backrest framework 10 of the vehicle seat backrest 100 comprises a carbon fiber outer layer 11 and a foam inner core 12, the carbon fiber outer layer 11 wraps the foam inner core 12 to form a cored structure, and at least one of the backrest body 13, the first side wall 14 and the second side wall 15 of the backrest framework 10 is a cored structure. In this way, the carbon fiber outer layer 11 can play the characteristics of high strength of carbon fiber, effectively increase the rigidity of the backrest framework 10, while the foam inner core 12 can reduce the number of carbon fiber layers, effectively improve the forming efficiency of the carbon fiber outer layer 11 while reducing weight. In addition, the foam inner core 12 can be processed into various shapes, with less modeling constraints, natural and beautiful edge transition, which helps the edge transition of the carbon fiber outer layer 11 after wrapping the foam inner core 12 to be natural, the carbon fiber lines are continuous, and the carbon fiber outer layer 11 on the inner and outer sides of the backrest framework 10 can be exposed without cutting hands, effectively reducing the risk of scratching personnel. The first side wall 14 and the second side wall 15 are respectively connected to the two sides of the backrest body 13 and oppositely distributed, and the angle adjuster assembly 20 is connected between the first side wall 14 and the second side wall 15. In this way, the angle adjuster assembly 20 is placed on the inner side of the backrest framework 10, which helps the backrest framework 10 to better protect the angle adjuster assembly 20, and helps to avoid the case that the angle adjuster assembly 20 is placed on the outer side of the backrest framework 10 and is easily damaged by collision with other objects.

[0068] In the present application, unless otherwise explicitly specified or limited, the term "assembly" and the like should be understood in a broad sense. For example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or a communication within two elements, or only surface contact, or surface contact connection through an intermediate medium. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0069] In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as specific or special structures. The description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0070] The above embodiments are only used to illustrate the technical solutions of the present application, but not intended to limit the present application; even though the present application has been described in detail with reference to the foregoing embodiments, those ordinarily skilled in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A vehicle seat back, characterized by, include: A backrest frame includes a carbon fiber outer layer and a foam inner core, with the carbon fiber outer layer wrapping the foam inner core to form a core-enclosed structure. The backrest frame also includes a backrest main body, a first side panel, and a second side panel. The first side panel and the second side panel are respectively connected to both sides of the backrest main body and are distributed opposite to each other. At least one of the backrest main body, the first side panel, and the second side panel is a core-enclosed structure. Both the first side panel and the second side panel are core-enclosed structures. The first side panel includes a first protrusion and a first concave portion connected to each other, with the distance between the first protrusion and the second side panel being less than the distance between the first concave portion and the second side panel. The second side panel includes a second protrusion and a second concave portion connected to each other, with the distance between the second protrusion and the first side panel being less than the distance between the second concave portion and the first side panel. A first embedded part and a second embedded part, wherein the first embedded part is disposed in the first recess and embedded in the foam core, and the first embedded part has a first connecting part; the second embedded part is disposed in the second recess and embedded in the foam core, and the second embedded part has a second connecting part; and An adjusting device assembly includes a first adjusting device bracket, a first fastener, a second adjusting device bracket, and a second fastener. The first adjusting device bracket is inserted through the carbon fiber outer layer and connected to the first connecting portion via the first fastener. The second adjusting device bracket is inserted through the carbon fiber outer layer and connected to the second connecting portion via the second fastener, so that the adjusting device assembly is connected between the first side panel and the second side panel.

2. The vehicle seat back of claim 1, wherein The foam core is a PMI foam core.

3. The vehicle seat back of claim 1, wherein The first connecting part is provided with a first connecting hole, and the angle adjuster assembly passes through the outer layer of the carbon fiber and is connected to the first embedded part through the first connecting hole.

4. The vehicle seat back of claim 3, wherein The first angle adjuster bracket is located on the side of the first side panel facing the second side panel, and the first fastener passes through the first angle adjuster bracket and is installed in the first connection hole.

5. The vehicle seat back of claim 1, wherein The second connecting part is provided with a second connecting hole, and the angle adjuster assembly passes through the outer layer of the carbon fiber and is connected to the second embedded part through the second connecting hole.

6. The vehicle seat back of claim 5, wherein The second angle adjuster bracket is located on the side of the second side panel facing the first side panel, and the second fastener passes through the second angle adjuster bracket and is installed in the second connection hole.

7. A vehicle seat characterized by comprising: include: cushion; as well as According to any one of claims 1 to 6, the vehicle seat back is connected to the seat cushion.

8. A vehicle characterized by comprising: include: Vehicle body; as well as The vehicle seat according to claim 7 is mounted on the vehicle body.

Images