Seat back, vehicle seat, and vehicle

Abstract

The application provides a seat backrest, an automobile seat and an automobile. The seat backrest comprises a base plate and a plurality of backrest modules. The plurality of backrest modules are installed on the base plate and are combined to form a seat backrest support. The base plate is at least partially elastic, and at least one backrest module adjusts a posture along with elastic deformation of the base plate. The application can make the seat backrest better match the human back curve by means of the elasticity of the base plate, thereby improving the user experience.

Description

Technical Field

[0001] This application relates to the field of seating technology, specifically to a seat back, a car seat, and a car. Background Technology

[0002] Currently, seat backrests mainly consist of a frame, foam, and covering. The foam is installed on the frame, and the covering wraps around the entire frame and foam to form the seat backrest. However, the fit of a seat backrest to the human back mainly relies on the ergonomic design of the seat backrest and the deformation of the foam, which does not allow the seat backrest to better conform to the curves of different human bodies. Utility Model Content

[0003] This application provides a seat backrest, a car seat, and a car, aiming to solve the above-mentioned technical problems.

[0004] In a first aspect, this application provides a seat back, comprising:

[0005] The substrate and the frame are mounted on the frame.

[0006] Multiple backrest modules are mounted on a base plate, and the multiple backrest modules are combined to form a seat backrest support.

[0007] The substrate is at least partially elastic, and at least one backrest module adjusts its posture as the substrate deforms elastically.

[0008] In some embodiments, at least a portion of the substrate may be recessed away from the plurality of backrest modules, and at least one backrest module adjusts its posture as the substrate is recessed.

[0009] In some embodiments, when at least a portion of the substrate is deformed by a recess, at least one backing module deflects toward the recessed area of ​​the substrate.

[0010] In some embodiments, at least a portion of the substrate near the central axis may be recessed in a direction away from the plurality of backrest modules.

[0011] In some embodiments, the substrate has at least one elastic region and at least one rigid region;

[0012] The elastic modulus of any elastic region is less than that of any rigid region.

[0013] In some embodiments, at least one backrest module has at least one first connecting portion and at least one second connecting portion;

[0014] At least one first connecting part is connected to a first object, and at least one second connecting part is connected to a second object;

[0015] Wherein, at least one of the first object and the second object is an elastic region or a rigid region of the substrate.

[0016] In some embodiments, a first connecting portion of at least one backrest module is rotatably connected to a first object, and a second connecting portion is elastically connected to a second object.

[0017] In some embodiments, at least one backrest module includes a first support portion and a second support portion;

[0018] The first support extends along the first direction, and the second support extends along the second direction;

[0019] Wherein, the first direction and the second direction are not parallel, and the first connecting part for rotational connection is located at the junction of the first support part and the second support part.

[0020] In some embodiments, the second connecting portion of at least one backrest module is located on the side of the first support portion facing the substrate; or

[0021] At least one backrest module has a second connection portion located on the side of the second support portion facing the substrate.

[0022] In some embodiments, the first connection portion of at least one backrest module is located on the side of the second connection portion away from the center of the substrate, and the second connection portion is elastically compressibly connected to the second object.

[0023] In some embodiments, a first connecting portion of at least one backrest module is located on the side of the second connecting portion near the center of the substrate, and the second connecting portion is elastically and stretchably connected to the second object.

[0024] In some embodiments, a first connecting portion of at least one backrest module is connected to a rigid region of the substrate, and a second connecting portion is connected to an elastic region of the substrate.

[0025] In some embodiments, a first connecting portion of at least one backrest module is connected to a rigid region of the substrate, and a second connecting portion is connected to a rigid region of the substrate.

[0026] In some embodiments, a first connecting portion of at least one backrest module is connected to an elastic region of the substrate, and a second connecting portion is connected to an elastic region of the substrate.

[0027] In some embodiments, a first connecting portion of at least one backrest module is rotatably connected to a substrate, and a second connecting portion is elastically connected to the substrate.

[0028] In some embodiments, a first hinge component is connected between a first connecting portion of at least one backrest module and a first object, and a first elastic component is connected between a second connecting portion and a second object.

[0029] In some embodiments, a first hinge component is connected between a first connecting portion of at least one backrest module and a first object, and a second hinge component is connected between a second connecting portion and a second object.

[0030] In some embodiments, a first elastic component is connected between a first connecting portion of at least one backrest module and a first object, and a second elastic component is connected between at least one second connecting portion and a second object.

[0031] In some embodiments, the substrate has a first elastic region and a second elastic region;

[0032] The first elastic region and the second elastic region are located on both sides of the central axis of the substrate.

[0033] In some embodiments, the substrate has a first rigid region;

[0034] The first rigid region is arranged along the central axis of the substrate.

[0035] In some embodiments, the substrate has a second rigid region;

[0036] The second rigid region is arranged along the edge of the substrate.

[0037] In some embodiments, the substrate has a first rigid region and a first elastic region;

[0038] The first rigid region is arranged along the edge of the substrate, and the first rigid region surrounds the first elastic region.

[0039] In some embodiments, the substrate has a first rigid region and a plurality of first elastic regions;

[0040] The first rigid region is arranged along the edge of the substrate, and multiple first elastic regions are located within the enclosure of the first rigid region.

[0041] In some embodiments, the substrate has a first rigid region and a first elastic region;

[0042] The first elastic region is arranged along the edge region of the substrate, and the first rigid region is arranged in a ring along the inner periphery of the first elastic region.

[0043] In some embodiments, the substrate further comprises a second elastic region;

[0044] The first rigid region surrounds the second elastic region.

[0045] In some embodiments, the elastic region of the substrate has multiple first through slots penetrating the substrate.

[0046] In some embodiments, the elastic region of the substrate has multiple first grooves.

[0047] In some embodiments, the elastic region of the substrate is provided with a second through groove corresponding to the size of the elastic region, and a plurality of elastic elements are installed in the second through groove.

[0048] In some embodiments, the plurality of backrest modules include a first side wing support module and a second side wing support module;

[0049] The first side wing support module and the second side wing support module are respectively installed on both sides of the central axis of the substrate.

[0050] In some embodiments, the multiple backrest modules include multiple first side wing support modules and multiple second side wing support modules;

[0051] Multiple first-side wing support modules and multiple second-side wing support modules are respectively installed on both sides of the central axis of the substrate.

[0052] In some embodiments, the plurality of backrest modules further include a first end support module;

[0053] The first end support module is installed at the first end of the substrate along the central axis.

[0054] In some embodiments, the plurality of backrest modules further include a second end support module;

[0055] The second end support module is installed at the second end of the substrate along the central axis.

[0056] In some embodiments, each backrest module includes a backrest support plate.

[0057] In some embodiments, each backrest module includes a backrest support plate and a backrest foam body, the backrest foam body being mounted on the side of the backrest support plate away from the substrate.

[0058] In some embodiments, each backrest module includes a backrest support plate;

[0059] At least two backrest support plates are configured to be mounted on the same backrest foam body.

[0060] Secondly, this application provides an automobile seat, including a seat back as described in the first aspect.

[0061] Thirdly, this application provides an automobile, including the automobile seat described in the second aspect.

[0062] In the embodiments of this application, since the substrate is at least partially elastic, at least one backrest module can adjust its posture as the substrate deforms.

[0063] Firstly, the elasticity of the substrate allows the seat back to better conform to the curve of the human back, thereby improving the user experience.

[0064] Secondly, when a car accident occurs, the elasticity of the base plate can generate a large amount of deformation, which can effectively buffer the driver or passengers to achieve car collision protection.

[0065] Thirdly, when designing a new car seat with a new appearance and function, only the shape and layout of multiple backrest modules need to be changed, which helps to improve the development and iteration speed of car seats and thus adapt to the current needs of rapid car replacement.

[0066] Fourthly, when users want to configure the seat according to their personal preferences or to repair the seat, they only need to replace multiple backrest modules of different shapes and / or layouts. This not only reduces the repair cost and difficulty, but also allows for personalized configuration of the seat back according to different user needs. Attached Figure Description

[0067] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0068] Figure 1 An exploded view of a seat backrest in an embodiment of this application is shown;

[0069] Figure 2 A schematic diagram of a substrate in an embodiment of this application is shown;

[0070] Figure 3 Another schematic diagram of the substrate in an embodiment of this application is shown;

[0071] Figure 4 Another schematic diagram of the substrate in an embodiment of this application is shown;

[0072] Figure 5 Another schematic diagram of the substrate in an embodiment of this application is shown;

[0073] Figure 6 Another schematic diagram of the substrate in an embodiment of this application is shown;

[0074] Figure 7 Another schematic diagram of the substrate in an embodiment of this application is shown;

[0075] Figure 8 Another schematic diagram of the substrate in an embodiment of this application is shown;

[0076] Figure 9Another schematic diagram of the substrate in an embodiment of this application is shown;

[0077] Figure 10 Another schematic diagram of the substrate in an embodiment of this application is shown;

[0078] Figure 11 Another schematic diagram of the substrate in an embodiment of this application is shown;

[0079] Figure 12 Another schematic diagram of the substrate in an embodiment of this application is shown;

[0080] Figure 13 Another schematic diagram of the substrate in an embodiment of this application is shown;

[0081] Figure 14 This invention illustrates a layout diagram of multiple backrest modules in an embodiment of the present application.

[0082] Figure 15 A schematic diagram of a backrest module in an embodiment of this application is shown;

[0083] Figure 16 A schematic diagram of another structure of the backrest module in an embodiment of this application is shown;

[0084] Figure 17 A schematic diagram of another structure of the backrest module in an embodiment of this application is shown;

[0085] Figure 18 A schematic diagram of another structure of the backrest module in an embodiment of this application is shown;

[0086] Figure 19 A schematic diagram of another structure of the backrest module in an embodiment of this application is shown;

[0087] Figure 20 A schematic diagram of another structure of the backrest module in an embodiment of this application is shown;

[0088] Figure 21 A schematic diagram of another structure of the backrest module in an embodiment of this application is shown;

[0089] Figure 22 This illustration shows a schematic diagram of multiple backrest modules mounted on a substrate in an embodiment of this application;

[0090] Figure 23 This illustrates another schematic diagram of multiple backrest modules mounted on a substrate in an embodiment of this application;

[0091] Figure 24 This illustrates another schematic diagram of multiple backrest modules mounted on a substrate in an embodiment of this application;

[0092] Figure 25 This illustrates another schematic diagram of multiple backrest modules mounted on a substrate in an embodiment of this application;

[0093] Figure 26 This illustrates another schematic diagram of multiple backrest modules mounted on a substrate in an embodiment of this application;

[0094] Figure 27 This illustrates another schematic diagram of multiple backrest modules mounted on a substrate in an embodiment of this application;

[0095] Figure 28 This illustrates another schematic diagram of multiple backrest modules mounted on a substrate in an embodiment of this application;

[0096] Figure 29 A schematic diagram showing the side of multiple backrest modules facing the substrate in an embodiment of this application is shown;

[0097] Figure 30 This paper shows a top-view schematic diagram of the backrest module in an embodiment of this application;

[0098] Figure 31 This paper shows a cross-sectional schematic diagram of the connection between the backrest module and the substrate of this application;

[0099] Figure 32 This paper shows another cross-sectional view of the connection between the backrest module and the substrate of this application;

[0100] Figure 33 This paper shows another cross-sectional view of the connection between the backrest module and the substrate of this application;

[0101] Figure 34 This paper shows another cross-sectional view of the connection between the backrest module and the substrate of this application;

[0102] Figure 35 This paper shows another cross-sectional view of the connection between the backrest module and the substrate of this application;

[0103] Figure 36 This paper shows another cross-sectional view of the connection between the backrest module and the substrate of this application;

[0104] Figure 37 This paper shows another cross-sectional view of the connection between the backrest module and the substrate of this application;

[0105] Figure 38 This illustration shows a cross-sectional view of the connection between the backrest module and the substrate when multiple backrest modules are in a free state, according to an embodiment of this application.

[0106] Figure 39 This invention provides a cross-sectional view of the connection between the backrest module and the substrate when multiple backrest modules are under pressure, as shown in an embodiment of this application.

[0107] Figure 40 Another exploded view of the seat back in an embodiment of this application is shown;

[0108] Figure 41 This paper shows a cross-sectional schematic diagram of the connection between the backrest module and the base plate and the backrest frame in an embodiment of this application.

[0109] Figure 42 This invention illustrates another cross-sectional view of the connection between the backrest module and the base plate and the backrest frame in an embodiment of this application.

[0110] Figure 43 This invention illustrates another cross-sectional view of the connection between the backrest module and the base plate and the backrest frame in an embodiment of this application.

[0111] Figure 44 This invention illustrates a structural schematic diagram of the backrest frame and the elastic substrate in an embodiment of this application.

[0112] Figure 45 This illustration shows another structural diagram of the backrest frame and substrate in an embodiment of this application;

[0113] Figure 46 This illustration shows another structural diagram of the backrest frame and substrate in an embodiment of this application;

[0114] Figure 47 This invention illustrates another cross-sectional view of the connection between the backrest module and the substrate in an embodiment of this application.

[0115] Figure 48 This invention illustrates another cross-sectional view of the connection between the backrest module and the substrate in an embodiment of this application.

[0116] Figure 49 This invention illustrates another cross-sectional view of the connection between the backrest module and the substrate in an embodiment of this application.

[0117] Figure 50 Another exploded view of the seat back is shown in an embodiment of this application.

[0118] Among them, 10 is a substrate, 101 is an elastic region, 1011 is a first elastic region, 1012 is a second elastic region, 102 is a rigid region, 1021 is a first rigid region, 1022 is a second rigid region, 11 is a first through groove, 12 is a first groove, 13 is a second through groove, and 14 is an elastic element.

[0119] 20 Backrest module, 201 First connecting part, 202 Second connecting part, 203 First support part, 204 Second support part, 210 Backrest support plate, 220 Backrest foam body, 21 First side wing support module, 211 First side wing support module, 22 Second side wing support module, 221 Second side wing support module, 23 First end support module, 24 Second end support module;

[0120] 30 Backrest frame, 40 Protective shell, 50 Headrest, 1 First hinge assembly, 2 First elastic assembly, 3 Second hinge assembly, 4 Second elastic assembly. Detailed Implementation

[0121] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0122] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0123] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0124] Currently, car seat backrests mainly consist of a frame, foam, and covering. The foam is installed on the frame, and the covering wraps around the entire frame and foam to form the seat back. However, the fit of a car seat backrest to the human body relies primarily on its ergonomic design and the deformation of the foam, which does not necessarily allow for a better fit between the seat back and the curves of the human body.

[0125] Meanwhile, to ensure a comfortable ride, the deformation of the foam under the same compressive force cannot be too large or too small. If the deformation is too large, the user will feel the seat cushion is too "soft" and uncomfortable; if the deformation is too small, the user will feel the seat cushion is too "hard" and uncomfortable. Since the resistance of the foam increases exponentially with increasing deformation, in the event of a car accident, the foam inside the seat back cannot generate a large amount of deformation to effectively cushion and protect the driver or passengers.

[0126] Furthermore, with the rapid iteration of new energy vehicles, car seats also need to respond to the rapid replacement needs of car manufacturers. Designing a new car seat requires a long process of research and development, structural strength testing, and product verification. The traditional car seat structure also limits the development and iteration speed of car seat products.

[0127] Furthermore, in today's car seat market, users' demand for seat personalization is growing. More and more users expect to be able to configure seats according to their personal preferences, or change seats with different styles or colors during use, or add or remove certain seat functions (heating, ventilation, massage, etc.). However, the appearance and functional configuration of car seats currently on the market are usually fixed during production, making it difficult to quickly and flexibly change them according to users' personal preferences, thus failing to meet the diverse needs of consumers.

[0128] Therefore, current traditional designs for car seat backrests, including frames, foam bodies, and coverings, suffer from drawbacks such as unsatisfactory user experience, poor safety performance, slow development and iteration speed, and inability to meet user personalization needs. To address this, this application provides a seat backrest, a car seat, and a car, which will be described in detail below.

[0129] First, refer to Figure 1 , Figure 1 An exploded view of a seat backrest according to an embodiment of this application is shown, wherein the seat backrest includes a base plate 10 and a plurality of backrest modules 20.

[0130] Specifically, the base plate 10 can provide a mounting base for the backrest module 20, allowing all or part of the connection structures of the backrest module 20 (such as the first connection portion 201 and the second connection portion 202 mentioned later) to be connected to the base plate 10, thereby fixing the backrest module 20. Generally, the base plate 10 can have a mounting structure for mounting the backrest module 20. For example, the base plate 10 can be provided with mounting holes, threaded holes, mounting grooves, pin holes, threaded posts, mounting posts, pins, and other bolted, threaded, or pin-connected detachable connection mounting structures, so as to detachably mount multiple backrest modules 20 onto the base plate 10.

[0131] The substrate 10 is at least partially elastic; that is, the substrate 10 may be entirely elastic or only partially elastic. It should be noted that "the substrate 10 is elastic" in this application means that the substrate 10 can undergo elastic deformation, i.e., the substrate 10 can deform after a certain force is applied to it, and can recover its deformation after the applied force is removed.

[0132] In some embodiments of this application, such as embodiments where a portion of the substrate 10 is elastic, the substrate 10 has at least one elastic region 101 and at least one rigid region 102. The elastic modulus of any elastic region 101 is less than the elastic modulus of any rigid region 102. Therefore, when the elastic region 101 and / or the rigid region 102 are subjected to a force, the elastic region 101 of the substrate will deform.

[0133] For example, see Figure 2 , Figure 2The diagram shows a schematic of a substrate 10 in an embodiment of this application. When forces F1 and F2 are applied to the elastic region 101 in the middle of the substrate 10, the elastic region 101 in the middle of the substrate 10 will be deformed by indentation. When forces F3 and F4, with at least some of their opposing forces, are applied to the rigid regions 102 on both sides of the substrate 10, the two sides of the substrate 10 are compressed by the force, which will also cause the elastic region 101 in the middle of the substrate 10 to be deformed by indentation.

[0134] It should be noted that, in the following description, the central axis of the substrate 10 refers to any straight line passing through the geometric center of the substrate 10. Generally, the central axis of the substrate 10 refers to the straight line corresponding to the position of the user's spine after sitting down, so that the shape of the substrate 10 corresponds to the user's back, thereby providing the seat back with complete back support for the user.

[0135] In some embodiments of this application, the substrate 10 has a first elastic region 1011 and a second elastic region 1012; the first elastic region 1011 and the second elastic region 1012 are respectively located on both sides of the central axis of the substrate 10.

[0136] For example, see Figure 3 , Figure 3 The diagram shows another schematic of the substrate 10 in an embodiment of this application. The first elastic region 1011 and the second elastic region 1012 are located in the middle of the substrate 10, and the rigid region 102 is located on both sides of the substrate 10. When a force is applied to the first elastic region 1011 and / or the second elastic region 1012, the middle of the substrate 10 will be deformed by indentation; or, when a compressive force is applied to both sides of the substrate 10, the middle of the substrate 10 will also be deformed by indentation.

[0137] In some embodiments of this application, the substrate 10 has a first rigid region 1021, a first elastic region 1011, and a second elastic region 1012; the first elastic region 1011 and the second elastic region 1012 are located on both sides of the central axis of the substrate 10, and the first rigid region 1021 is arranged along the central axis of the substrate 10.

[0138] For example, see Figure 4 , Figure 4 This illustration shows another schematic diagram of the substrate 10 in an embodiment of this application. The first elastic region 1011 and the second elastic region 1012 are located on both sides of the substrate 10, and the first rigid region 1021 is located in the middle of the substrate 10. When a force is applied to the first rigid region 1021, a depression will be generated in the middle of the substrate 10.

[0139] In some embodiments of this application, the substrate 10 has a second rigid region 1022, a first elastic region 1011 and a second elastic region 1012; the first elastic region 1011 and the second elastic region 1012 are respectively located on both sides of the central axis of the substrate 10; the second rigid region 1022 is arranged along the edge of the substrate 10.

[0140] For example, see Figure 5 , Figure 5 The diagram shows another schematic of the substrate 10 in an embodiment of this application. The first elastic region 1011 and the second elastic region 1012 are located in the middle of the substrate 10, and the second rigid region 1022 is arranged in a ring along the edge of the substrate 10. When a force is applied to the first elastic region 1011 and / or the second elastic region 1012, the middle of the substrate 10 will be deformed by indentation. Alternatively, when a compressive force is applied to the second rigid region 1022 on both sides of the substrate 10, the middle of the substrate 10 will also be deformed by indentation.

[0141] In some embodiments of this application, the substrate 10 has a first rigid region 1021 and a first elastic region 1011; the first rigid region 1021 is arranged along the edge of the substrate 10 and surrounds the first elastic region 1011.

[0142] For example, see Figure 6 , Figure 6 Another schematic diagram of the substrate 10 in an embodiment of this application is shown. The first elastic region 1011 is located in the middle of the substrate 10, and the second rigid region 1022 is arranged in a ring along the edge of the substrate 10. The first rigid region 1021 at the edge of the substrate 10 surrounds the first elastic region 1011 at the center of the substrate 10. When a force is applied to the first elastic region 1011, the middle of the substrate 10 will be deformed by indentation. Alternatively, when a compressive force is applied to the first rigid regions 1021 at both sides of the substrate 10, the middle of the substrate 10 will also be deformed by indentation.

[0143] In some embodiments of this application, the substrate 10 has a first rigid region 1021 and a plurality of first elastic regions 1011; the first rigid region 1021 is arranged along the edge of the substrate 10, and the plurality of first elastic regions 1011 are located within the enclosure of the first rigid region 1021.

[0144] For example, see Figure 7 , Figure 7This illustration shows another schematic diagram of the substrate 10 in an embodiment of this application. A plurality of first elastic regions 1011 are arranged in an array in the middle of the substrate 10, and a first rigid region 1021 is arranged in a ring along the edge of the substrate 10. When a force is applied to any of the first elastic regions 1011, the middle of the substrate 10 will be deformed by indentation; or, when a compressive force is applied to the first rigid regions 1021 on both sides of the substrate 10, the middle of the substrate 10 will also be deformed by indentation.

[0145] In some embodiments of this application, the substrate 10 has a first rigid region 1021 and a first elastic region 1011; the first elastic region 1011 is arranged along the edge region of the substrate 10, and the first rigid region 1021 is arranged in a ring along the inner periphery of the first elastic region 1011.

[0146] For example, see Figure 8 , Figure 8 Another schematic diagram of substrate 10 in an embodiment of this application is shown. The first elastic region 1011 is arranged in a ring along the edge of substrate 10, and the first rigid region 1021 is arranged in a ring around the inner periphery of the first elastic region 1011. The middle part of substrate 10 is a hollow region. When the first rigid region 1021 is subjected to force, the inner ring of the first rigid region 1021 will be recessed downward.

[0147] In some embodiments of this application, the substrate 10 has a first rigid region 1021, a first elastic region 1011 and a second elastic region 1012; the first elastic region 1011 is arranged along the edge region of the substrate 10, the first rigid region 1021 is arranged in a ring along the inner periphery of the first elastic region 1011, and the first rigid region 1021 surrounds the second elastic region 1012.

[0148] For example, see Figure 9 , Figure 9 The following is a schematic diagram of another substrate 10 in an embodiment of this application. A first elastic region 1011 is arranged in a ring along the edge of the substrate 10, a first rigid region 1021 is arranged in a ring around the inner periphery of the first elastic region 1011, and a second elastic region 1012 is located in the middle of the substrate 10. When the first rigid region 1021 or the second elastic region 1012 applies a force, the middle of the substrate 10 can be recessed downward.

[0149] It is worth noting that the above-described layout of the elastic region 101 and rigid region 102 of the substrate 10 is only an exemplary embodiment of this application. Those skilled in the art can make equivalent modifications under the guidance of this application, for example, in... Figures 2 to 9 The elastic region 101 shown is approximately rectangular in shape. In some possible embodiments, the elastic region 101 may also be circular, triangular, regular pentagonal, or other shapes.

[0150] As an exemplary embodiment of the flexible region 101, see [reference]. Figure 10 , Figure 10 Another schematic diagram of the substrate 10 in an embodiment of this application is shown, wherein the elastic region 101 of the substrate 10 has multiple first through grooves 11 penetrating the substrate 10. The first through grooves 11 of the substrate 10 make the region more prone to deformation under the same force. When a force is applied to the elastic region 101, the middle part of the substrate 10 will be concave and deformed; or, when a compressive force is applied to both sides of the substrate 10, the middle part of the substrate 10 will also be concave and deformed.

[0151] As another exemplary embodiment of the elastic region 101, see [reference]. Figure 11 , Figure 11 Another schematic diagram of the substrate 10 in the embodiment of this application is shown, wherein the elastic region 101 of the substrate 10 has a plurality of first grooves 12. The first grooves 12 of the substrate 10 make the region more prone to deformation under the same force. When a force is applied to the elastic region 101, the middle part of the substrate 10 will be deformed; or, when a compressive force is applied to both sides of the substrate 10, the middle part of the substrate 10 will also be deformed.

[0152] As another exemplary embodiment of the elastic region 101, see [reference]. Figure 12 , Figure 12 Another schematic diagram of the substrate 10 in an embodiment of this application is shown, wherein the elastic region 101 of the substrate 10 has a second through groove 13 corresponding to the size of the elastic region 101. A plurality of elastic elements 14 are installed in the second through groove 13. The elastic elements 14 can be, but are not limited to, helical springs, linear springs or rubber parts, etc., structural components that can undergo elastic deformation. The plurality of elastic elements 14 can make the region more prone to deformation under the same force. When a force is applied to the elastic region 101, the middle part of the substrate 10 will be concave and deformed; or, when a pressing force is applied to both sides of the substrate 10, the middle part of the substrate 10 will also be concave and deformed.

[0153] It is worth noting that the above-described embodiment regarding the elastic region 101 of the substrate 10 is merely an exemplary embodiment of this application, and those skilled in the art can make equivalent modifications under the guidance of this application. For example, in Figures 10 to 12 The first through groove 11, the first recess 12, and the elastic element 14 of the elastic region 101 shown extend in a direction parallel to the central axis of the substrate 10, but are not limited thereto. For example, in some possible embodiments, see [reference needed]. Figure 13 , Figure 13Another schematic diagram of the substrate 10 in an embodiment of this application is shown. The elastic member 14 may also extend in a direction perpendicular to the central axis of the substrate 10.

[0154] Continue reading Figure 1 as well as Figure 14 , Figure 14 The diagram shows a layout of multiple backrest modules 20 in an embodiment of this application. The multiple backrest modules 20 are mounted on the base plate 10 and are combined to form a seat back support, so as to provide back support for at least part of the user's back (e.g., left lumbar region, right lumbar region, cervical region, lumbar region, scapular region, rib region, sacral region, chest and back region, etc.) through the multiple backrest modules 20.

[0155] Generally, each backrest module 20 may have an installation structure, such as mounting holes, threaded holes, mounting grooves, pin holes, threaded posts, mounting posts, pins, etc., which are detachable connection and installation structures for bolt connection, threaded connection or pin connection, so as to detachably install multiple backrest modules 20 on the base plate 10.

[0156] It is understood that in some possible embodiments, multiple backrest modules 20 may also be non-removably fixed to the substrate 10. For example, the connection structure (e.g., connecting post) of the backrest module 20 may be welded to the rigid area of ​​the substrate 10.

[0157] In some embodiments of this application, each backrest module 20 may include a backrest support plate 210.

[0158] For example, see Figure 15 , Figure 15 A schematic diagram of a backrest module 20 in an embodiment of this application is shown. The backrest modules 20 on the left, right, upper and lower sides all include backrest support plates 210. The backrest support plates 210 can be installed on the base plate 10 through a detachable connection structure, so that multiple backrest support plates 210 form a seat backrest support.

[0159] In some embodiments of this application, each backrest module 20 includes a backrest support plate 210 and a backrest foam body 220, the backrest foam body 220 being mounted on the side of the backrest support plate 210 away from the substrate 10.

[0160] For example, see Figure 16 , Figure 16This illustration shows another structural diagram of the backrest module 20 in an embodiment of this application. Each backrest module 20 includes a backrest support plate 210 and a backrest foam body 220. The backrest foam body 220 is mounted on the backrest support plate 210 and can provide elastic support for the user, thereby providing a good riding experience. The backrest support plate 210 can be provided with detachable connection and installation structures such as mounting holes, threaded holes, mounting grooves, pin holes, threaded posts, mounting posts, and pins for bolt connection, threaded connection, or pin connection, so as to facilitate the mounting of the backrest module 20 on the base plate 10.

[0161] In some embodiments of this application, each backrest module 20 includes a backrest support plate 210; at least two backrest support plates 210 are configured to mount the same backrest foam body 220.

[0162] For example, see Figure 17 , Figure 17 This paper shows another structural schematic diagram of the backrest module 20 in an embodiment of the present application, in which the two backrest support plates 210 on the left and right sides are equipped with the same backrest foam body 220, so that the backrest foam body 220 becomes the main flexible object supporting the back of the human body.

[0163] For example, see Figure 18 , Figure 18 This paper shows another structural schematic diagram of the backrest module 20 in an embodiment of this application, in which the three backrest support plates 210 in the left, right and central regions are equipped with the same backrest foam body 220, so that the backrest foam body 220 becomes the main flexible object supporting the back of the human body.

[0164] For example, see Figure 19 , Figure 19 This illustration shows another structural diagram of the backrest module 20 in an embodiment of this application. The two backrest support plates 210 on the left side are equipped with the same backrest foam body 220, and the two backrest support plates 210 on the right side are equipped with the same backrest foam body 220, so that the two backrest foam bodies 220 become the main flexible objects supporting the left and right sides of the human back.

[0165] It is understood that in the above embodiments, the backrest foam 220 can be a rigid foam plastic (such as polystyrene foam, epoxy resin foam), a soft foam plastic (such as polyurethane sponge, rubber foam), or a semi-rigid foam plastic. Alternatively, the backrest foam 220 can be various types of foam and flexible materials composed of a cover, so as to wrap the backrest foam 220 with the cover.

[0166] In some embodiments of this application, adjacent backrest support plates 210 may also be connected by a movable connector.

[0167] For example, see Figure 20 , Figure 20 This paper shows another structural schematic diagram of the backrest module 20 in an embodiment of this application. The left and right backrest support plates 210 can be connected by springs, so that the left and right backrest support plates 210 generate interaction forces during the posture adjustment process and form a linkage posture adjustment process.

[0168] For example, see Figure 21 , Figure 21 The diagram shows another structural schematic of the backrest module 20 in this embodiment. The two backrest support plates 210 on the left side can be connected by springs, and the two backrest support plates 210 on the right side can be connected by springs, so that the two backrest support plates 210 on the left and right sides generate interaction forces during the posture adjustment process and form a linkage posture adjustment process.

[0169] It should be noted that the above is only an exemplary embodiment of the backrest module 20. Those skilled in the art can make equivalent modifications under the guidance of this application. For example, each backrest support plate 210 can also be equipped with multiple backrest foam bodies. However, it should be emphasized that in this application, whether each backrest support plate 210 is equipped with one or more backrest foam bodies 220, multiple backrest support plates 210 are equipped with the same backrest foam body 220, or multiple backrest foam bodies 220 are directly installed on the substrate, they should all be considered as falling within the scope of "multiple backrest modules" in this application.

[0170] In some embodiments of this application, the multiple backrest modules 20 include a first side wing support module 21 and a second side wing support module 22; the first side wing support module 21 and the second side wing support module 22 are respectively installed on both sides of the central axis of the substrate 10.

[0171] For example, see Figure 22 , Figure 22 This illustration shows a schematic diagram of multiple backrest modules 20 mounted on a substrate 10 in an embodiment of this application. The first side wing support module 21 and the second side wing support module 22 are located on the left and right sides of the central axis of the substrate 10, respectively. The first side wing support module 21 can provide support for at least the left side of the user's back, and the second side wing support module 22 can provide support for at least the right side of the user's back, thereby ensuring the reliability of the support for the user's back.

[0172] In some embodiments of this application, the multiple backrest modules 20 include a first side wing support module 21, a second side wing support module 22, and a first end support module 23; the first side wing support module 21 and the second side wing support module 22 are respectively installed on both sides of the central axis of the substrate 10, and the first end support module 23 is installed at the first end of the substrate 10 along the central axis direction.

[0173] For example, see Figure 23 , Figure 23 This illustration shows another schematic diagram of multiple backrest modules mounted on the substrate 10 in an embodiment of this application. The first side wing support module 21 and the second side wing support module 22 are located on the left and right sides of the central axis of the substrate 10, respectively. The first end support module 23 is located at the upper end of the substrate 10. The first side wing support module 21 can provide support for at least the left side of the user's back, the second side wing support module 22 can provide support for at least the right side of the user's back, and the first end support module 23 can provide support for the user's shoulders and neck, thereby providing the user with a better riding experience.

[0174] In some embodiments of this application, the multiple backrest modules 20 include a first side wing support module 21, a second side wing support module 22, a first end support module 23, and a second end support module 24; the first side wing support module 21 and the second side wing support module 22 are respectively installed on both sides of the central axis of the substrate 10, the first end support module 23 is installed at the first end of the substrate 10 along the central axis, and the second end support module 24 is installed at the second end of the substrate 10 along the central axis.

[0175] For example, see Figure 24 , Figure 24 This illustration shows another schematic diagram of multiple backrest modules mounted on the base plate 10 in an embodiment of this application. The first side wing support module 21 and the second side wing support module 22 are located on the left and right sides of the central axis of the base plate 10, respectively. The first end support module 23 is located at the upper end of the base plate 10 and the lower end of the base plate 10. The first side wing support module 21 can provide support for at least the left side of the user's back waist, the second side wing support module 22 can provide support for at least the right side of the user's back waist, the first end support module 23 can provide support for the user's back shoulders and neck, and the second end support module 24 can provide support for the user's back tailbone, thereby providing the user with a better riding experience.

[0176] In some embodiments of this application, the multiple backrest modules 20 include multiple first side wing support modules 211 and multiple second side wing support modules 221, which are respectively mounted on both sides of the central axis of the substrate 10.

[0177] For example, see Figure 25 , Figure 25This illustration shows another schematic diagram of multiple backrest modules mounted on a base plate 10 in an embodiment of this application. Multiple first side wing support modules 211 are located on the left side of the base plate 10, and multiple second side wing support modules 221 are located on the right side of the base plate 10. The multiple second side wing support modules 221 can provide support for at least the left side of the user's back, and the multiple first side wing support modules 211 can provide support for at least the right side of the user's back.

[0178] Those skilled in the art will understand that the above-described arrangement of the multiple backrest modules 20 on the substrate 10 is not limited to... Figures 22 to 25 For example, see Figure 26 , Figure 26 This illustration shows another schematic diagram of multiple backrest modules mounted on a substrate 10 in an embodiment of this application. In an embodiment where the multiple backrest modules 20 include multiple first side wing support modules 211 and multiple second side wing support modules 221, the multiple backrest modules 20 may further include a first end support module 23, which is mounted on a first end of the substrate 10 along the central axis direction; for example, see [reference to...]. Figure 27 , Figure 27 This illustration shows another schematic diagram of multiple backrest modules mounted on a substrate 10 according to an embodiment of this application. In an embodiment where the multiple backrest modules 20 include multiple first side wing support modules 211 and multiple second side wing support modules 221, the multiple backrest modules 20 may further include a second end support module 24, which is mounted on the second end of the substrate 10 along the central axis direction; for example, see [reference to...]. Figure 28 , Figure 28 This illustration shows another schematic diagram of multiple backrest modules mounted on a base plate 10 in an embodiment of this application. In an embodiment where multiple backrest modules 20 include multiple first side wing support modules 211 and multiple second side wing support modules 221, the multiple first side wing support modules 211 can be arranged in a direction perpendicular to the central axis, and the multiple second side wing support modules 221 can be arranged in a direction perpendicular to the central axis.

[0179] In this embodiment, since the substrate 10 is at least partially elastic, the substrate 10 can undergo elastic deformation, so that at least one backrest module 20 adjusts its posture as the substrate 10 deforms.

[0180] For example, in Figure 22In this configuration, assuming that the first side wing support module 21 and the second side wing support module 22 are partially connected to the elastic region 101, when the elastic region 101 in the middle of the substrate 10 is concave and deformed in the direction away from the multiple backrest modules 20, the part of the first side wing support module 21 near the center of the substrate 10 moves downward with the concave deformation, while the part of the first side wing support module 21 away from the center of the substrate 10 tilts upward; similarly, the part of the second side wing support module 22 near the center of the substrate 10 moves downward with the concave deformation, while the part of the second side wing support module 22 away from the center of the substrate 10 tilts upward. At this time, both the first side wing support module 21 and the second side wing support module 22 have adjusted their posture, thereby providing the user with a backrest-like enveloping seating experience.

[0181] For example, in Figure 23 In this configuration, assuming that the first side wing support module 21 and the second side wing support module 22 are partially connected to the elastic region 101, and the first end support module 23 is partially connected to the elastic region 101, when the elastic region 101 in the middle of the substrate 10 is concave and deformed in the direction away from the multiple backrest modules 20, the portions of the first side wing support module 21 and the second side wing support module 22 near the center of the substrate 10 move downward with the concave deformation, while the portions away from the center of the substrate 10 tilt upward; at the same time, the portion of the first end support module 23 near the center of the substrate 10 moves downward with the concave deformation, while the portion away from the center of the substrate 10 tilts upward. At this time, the first side wing support module 21, the second side wing support module 22, and the third side wing support module all adjust their posture, providing the user with a wraparound riding experience.

[0182] As can be seen from the embodiments of this application, since the substrate 10 is at least partially elastic, at least one backrest module 20 can adjust its posture as the substrate 10 deforms. In the first aspect, the elasticity of the substrate 10 allows the seat back to better conform to the curve of the human back, thereby improving the user experience. In the second aspect, when a car accident occurs, the elasticity of the substrate 10 can generate a large amount of deformation, thereby effectively buffering the driver or passenger to achieve car collision protection. In the third aspect, when designing a new car seat with a new appearance and function, only the shape and layout design of multiple backrest modules 20 need to be changed, which is conducive to improving the development and iteration speed of car seats, thereby adapting to the current needs of rapid car replacement. In the fourth aspect, when users want to configure the seat according to their personal preferences or perform seat repairs, only multiple backrest modules 20 with different shapes and / or layouts need to be replaced, which not only reduces repair costs and difficulties, but also allows for personalized configuration of the seat back according to different user needs.

[0183] In some embodiments of this application, at least a portion of the substrate 10 may be recessed away from the plurality of backrest modules 20, and at least one backrest module 20 adjusts its posture as the substrate 10 is recessed.

[0184] For example, in Figure 22 In this context, assuming that the first side wing support module 21 and the second side wing support module 22 are partially connected to the elastic region 101 at the center of the substrate 10, when the elastic region 101 at the center of the substrate 10 is recessed away from the multiple backrest modules 20, the portion of the first side wing support module 21 and the second side wing support module 22 near the center of the substrate 10 moves downward with the recessed deformation, while the portion away from the center of the substrate 10 tilts upward.

[0185] For example, in Figure 23 In this context, assuming that the first end support module 23 is partially connected to the elastic region 101 at the center of the substrate 10, when the elastic region 101 at the center of the substrate 10 is recessed away from the multiple backrest modules 20, the part of the first end support module 23 near the center of the substrate 10 moves downward as it is recessed and deformed, while the part away from the center of the substrate 10 tilts upward.

[0186] For example, see Figure 24 Assuming that the second end support module 24 is partially connected to the elastic region 101 at the center of the substrate 10, when the elastic region 101 at the center of the substrate 10 is recessed away from the multiple backrest modules 20, the part of the second end support module 24 near the center of the substrate 10 moves downward as it is recessed and deformed, while the part away from the center of the substrate 10 tilts upward.

[0187] For example, see Figure 25 Assuming that each first side wing support module 211 is partially connected to the elastic region 101 at the center of the substrate 10, and each second side wing support module 221 is partially connected to the elastic region 101 at the center of the substrate 10, when the elastic region 101 at the center of the substrate 10 is recessed away from the multiple backrest modules 20, the portion of the second end support module 24 of the first side wing support module 211 and the second side wing support module 221 near the center of the substrate 10 moves downward with the recessed deformation, while the portion away from the center of the substrate 10 tilts upward.

[0188] In some embodiments of this application, when at least a portion of the substrate 10 is deformed by a recess, at least one backrest module 20 deflects toward the recessed area of ​​the substrate 10.

[0189] For example, in Figure 22In this configuration, assuming that the first side wing support module 21 and the second side wing support module 22 are partially connected to the elastic region 101 at the center of the substrate 10, and the first side wing support module 21 and the second side wing support module 22 are partially connected to the rigid region 102 at the center of the substrate 10, when the elastic region 101 at the center of the substrate 10 is recessed away from the multiple backrest modules 20, the portion of the first side wing support module 21 and the second side wing support module 22 near the center of the substrate 10 moves downward with the recessed deformation, while the portion away from the center of the substrate 10 tilts upward. Overall, the first side wing support module 21 and the second side wing support module 22 are deflected toward the recessed region of the substrate 10, so as to provide the user with a wrap-around riding experience.

[0190] For example, in Figure 23 In this case, assuming that the first end support module 23 is partially connected to the elastic region 101 at the center of the substrate 10 and partially connected to the rigid region 102 at the center of the substrate 10, when the elastic region 101 at the center of the substrate 10 is recessed away from the multiple backrest modules 20, the part of the first end support module 23 near the center of the substrate 10 moves downward with the recessed deformation, while the part away from the center of the substrate 10 tilts upward. Overall, the first end support module 23 also deflects towards the recessed region of the substrate 10.

[0191] For example, in Figure 24 In this case, assuming that the second end support module 24 is partially connected to the elastic region 101 at the center of the substrate 10 and partially connected to the rigid region 102 at the center of the substrate 10, when the elastic region 101 at the center of the substrate 10 is recessed away from the multiple backrest modules 20, the part of the second end support module 24 near the center of the substrate 10 moves downward with the recessed deformation, while the part away from the center of the substrate 10 tilts upward. Overall, the second end support module 24 is also deflected towards the recessed region of the substrate 10.

[0192] For example, in Figure 25 In this configuration, assuming that the first side wing support module 211 and the second side wing support module 221 are partially connected to the elastic region 101 at the center of the substrate 10, and that the first side wing support module 211 and the second side wing support module 221 are partially connected to the rigid region 102 at the center of the substrate 10, when the elastic region 101 at the center of the substrate 10 is recessed away from the multiple backrest modules 20, the portions of the first side wing support module 211 and the second side wing support module 221 near the center of the substrate 10 move downward with the recessed deformation, while the portions away from the center of the substrate 10 tilt upward. Overall, the first side wing support module 211 and the second side wing support module 221 are deflected toward the recessed region of the substrate 10.

[0193] In some embodiments of this application, at least a portion of the substrate 10 located near the central axis may be recessed in a direction away from the plurality of backrest modules 20.

[0194] For example, in Figure 3 In the substrate 10, the first elastic region 1011 and the second elastic region 1012 are located in the middle of the substrate 10, and the rigid region 102 is located on both sides of the substrate 10. When a force is applied to the first elastic region 1011 and / or the second elastic region 1012, the middle of the substrate 10 will be deformed by indentation; or, when a compressive force is applied to both sides of the substrate 10, the middle of the substrate 10 will also be deformed by indentation.

[0195] For example, in Figure 4 In the substrate 10, the first elastic region 1011 and the second elastic region 1012 are located on both sides of the substrate 10, and the first rigid region 1021 is located in the middle of the substrate 10. When a force is applied to the first rigid region 1021, a depression will be generated in the middle of the substrate 10.

[0196] For example, in Figure 5 In the substrate 10, the first elastic region 1011 and the second elastic region 1012 are located in the middle of the substrate 10, and the second rigid region 1022 is arranged in a ring along the edge of the substrate 10. When a force is applied to the first elastic region 1011 and / or the second elastic region 1012, the middle of the substrate 10 is deformed by indentation. Alternatively, when a compressive force is applied to the second rigid region 1022 on both sides of the substrate 10, the middle of the substrate 10 will also be deformed by indentation.

[0197] For example, in Figure 6 In the substrate 10, the first elastic region 1011 is located in the middle of the substrate 10, and the second rigid region 1022 is arranged in a ring along the edge of the substrate 10. When a force is applied to the first elastic region 1011, the middle of the substrate 10 will be deformed by indentation. Alternatively, when a compressive force is applied to the first rigid region 1021 on both sides of the substrate 10, the middle of the substrate 10 will also be deformed by indentation.

[0198] For example, in Figure 7 In the substrate 10, a plurality of first elastic regions 1011 are arranged in an array in the middle of the substrate 10, and a first rigid region 1021 is arranged in a ring along the edge of the substrate 10. When a force is applied to any of the first elastic regions 1011, the middle of the substrate 10 will be deformed by indentation; or, when a compressive force is applied to the first rigid regions 1021 on both sides of the substrate 10, the middle of the substrate 10 will also be deformed by indentation.

[0199] For example, in Figure 8In the substrate 10, the first elastic region 1011 is arranged in a ring along the edge of the substrate 10, and the first rigid region 1021 is arranged in a ring around the inner periphery of the first elastic region 1011. The middle part of the substrate 10 is a hollow region. When the first rigid region 1021 is subjected to force, the inner ring of the first rigid region 1021 will be recessed downward.

[0200] For example, in Figure 9 In the substrate 10, the first elastic region 1011 is arranged in a ring around the edge of the substrate 10, the first rigid region 1021 is arranged in a ring around the inner periphery of the first elastic region 1011, and the second elastic region 1012 is located in the middle of the substrate 10. When the first rigid region 1021 or the second elastic region 1012 applies a force, the middle of the substrate 10 can be recessed downward.

[0201] It should be noted that the concave deformation of the substrate 10 can be caused by the force exerted on the substrate 10 by one or more backrest modules 20, or by the force exerted on the substrate 10 by other objects. This application does not impose any specific limitations.

[0202] In some embodiments of this application, at least one backrest module 20 has at least one first connecting portion 201 and at least one second connecting portion 202.

[0203] For example, see Figure 29 , Figure 29 A schematic diagram of multiple backrest modules 20 facing the substrate 10 in an embodiment of this application is shown. The backrest modules 20 on the left and right sides have two first connecting parts 201 and two second connecting parts 202, respectively. The backrest modules 20 on the top have two first connecting parts 201 and two second connecting parts 202, respectively. The backrest modules 20 on the bottom have two first connecting parts 201 and one second connecting part 202. Each backrest module 20 can be fixed through these connecting parts.

[0204] It should be noted that in the backrest module 20 having a first connecting portion 201 and a second connecting portion 202, at least one first connecting portion 201 of the backrest module 20 is connected to a first object, and at least one second connecting portion 202 is connected to a second object. At least one of the first object and the second object is either an elastic region 101 or a rigid region 102 of the substrate 10. In other words, the first object can be the elastic region 101 of the substrate 10, and the second object can be the elastic region 101 of the substrate 10; or, the first object can be the elastic region 101 of the substrate 10, and the second object can be the rigid region 102 of the substrate 10; or, the first object can be the rigid region 102 of the substrate 10, and the second object can be the rigid region 102 of the substrate 10; or, the first object can be the elastic region 101 of the substrate 10, and the second object can be other structural components besides the substrate 10 (such as the backrest frame 30 mentioned later); or, the first object can be the rigid region 102 of the substrate 10, and the second object can be other structural components besides the substrate 10 (such as the backrest frame 30 mentioned later).

[0205] In some embodiments of this application, at least one backrest module 20 has a first connecting portion 201 rotatably connected to a first object, and a second connecting portion 202 elastically connected to a second object.

[0206] It should be noted that since the first connecting part 201 of the backrest module 20 is rotatably connected to the first object, when the substrate 10 is dented (e.g., the center is dented and deformed), the backrest module 20 can undergo a deflection movement by the rotation of the first connecting part 201, allowing the backrest module 20 to undergo a larger angle of deflection posture adjustment, thereby facilitating a better cradle-like seating experience for the user. At the same time, since the second connecting part 202 is elastically connected to the second object, on the one hand, the connection point of the second connecting part 202 can further adjust the posture of the backrest module 20 to adapt to the curve of the human back through elastic deformation, thereby further improving the user experience. On the other hand, the elastic deformation of the connection point of the second connecting part 202 can be combined with the elastic deformation of the substrate 10 to achieve multi-level buffering in the event of a car collision, thereby further improving the car collision protection effect.

[0207] In some embodiments of this application, such as an embodiment in which the first connecting portion 201 of at least one backrest module 20 is rotatably connected to a first object, at least one backrest module 20 includes a first support portion 203 and a second support portion 204; the first support portion 203 extends along a first direction, and the second support portion 204 extends along a second direction; wherein the first direction and the second direction are not parallel, and the first connecting portion 201 for rotatable connection is located at the junction of the first support portion 203 and the second support portion 204.

[0208] For example, see Figure 30 , Figure 30 This diagram illustrates a top view of the backrest module 20 in an embodiment of this application. The second support portion 204 of the left backrest module 20 extends in a second direction perpendicular to the central axis of the substrate 10, while the first support portion 203 extends in a first direction deviating from the central axis of the substrate 10 and deflected at a certain angle. Similarly, the second support portion 204 of the right backrest module 20 extends in a second direction perpendicular to the central axis of the substrate 10, while the first support portion 203 extends in a first direction deviating from the central axis of the substrate 10 and deflected at a certain angle. Simultaneously, the first connecting portion 201 for rotatable connection between the left and right backrest modules 20 is located at the junction of the first support portion 203 and the second support portion 204. Therefore, when the substrate 10 experiences a depression (e.g., a central depression deformation), the left and right backrest modules 20 can adjust their posture by a larger angle using the first connecting portion 201, thereby improving the user's comfort and support experience.

[0209] In some embodiments of this application, for example, in the embodiment where the first connecting portion 201 of the backrest module 20 for rotatable connection is located at the junction of the first support portion 203 and the second support portion 204, at least one second connecting portion 202 of the backrest module 20 may be located on the side of the second support portion 204 facing the substrate 10.

[0210] For example, see Figure 31 , Figure 31 This diagram shows a cross-sectional view of the connection between the backrest module 20 and the substrate 10. The second connecting portion 202 of the left backrest module 20 for elastic connection is disposed on its second support portion 204 near the central axis of the substrate 10, and the second connecting portion 202 for elastic connection is located on the side of the second support portion 204 facing the substrate 10. The second connecting portion 202 of the right backrest module 20 for elastic connection is disposed on its second support portion 204 near the central axis of the substrate 10, and the second connecting portion 202 for elastic connection is located on the side of the second support portion 204 facing the substrate 10. This arrangement ensures that both the left and right backrest modules 20 have at least one first connecting portion 201 for rotatable connection and at least one second connecting portion 202 for elastic connection. The compression elastic deformation of the connecting spring can combine with the elastic deformation of the substrate 10, enabling multi-level buffering to further improve the vehicle collision protection effect during a collision.

[0211] In some embodiments of this application, for example, in the embodiment where the first connecting portion 201 of the backrest module 20 for rotatable connection is located at the junction of the first support portion 203 and the second support portion 204, at least one second connecting portion 202 of the backrest module 20 is located on the side of the first support portion 203 facing the substrate 10.

[0212] For example, see Figure 32 , Figure 32 This diagram shows another cross-sectional view of the connection between the backrest module 20 and the substrate 10. The second connecting portion 202 of the left backrest module 20 for elastic connection is disposed on the first support portion 203 away from the central axis of the substrate 10, and the second connecting portion 202 for elastic connection is located on the side of the first support portion 203 facing the substrate 10. The second connecting portion 202 of the right backrest module 20 for elastic connection is disposed on the first support portion 203 away from the central axis of the substrate 10, and the second connecting portion 202 for elastic connection is located on the side of the first support portion 203 facing the substrate 10. This makes it possible for both the left and right backrest modules 20 to have at least one first connecting portion 201 for rotatable connection and at least one second connecting portion 202 for elastic connection. The elastic deformation of the connecting spring can be combined with the elastic deformation of the substrate 10. In the event of a car collision, multi-level buffering can be achieved to further improve the car collision protection effect.

[0213] In some embodiments of this application, for example, in an embodiment where at least one first connecting portion 201 of a backrest module 20 is rotatably connected to a first object and a second connecting portion 202 is elastically connected to a second object, at least one first connecting portion 201 of the backrest module 20 is located on the side of the second connecting portion 202 away from the center of the substrate 10, and the second connecting portion 202 is elastically compressibly connected to the second object.

[0214] For example, in Figure 31 In the design, the first connecting part 201 of the left backrest module 20 for rotatable connection is located on the side of the second connecting part 202 for elastic connection away from the center of the substrate 10, and the first connecting part 201 of the right backrest module 20 for rotatable connection is located on the side of the second connecting part 202 for elastic connection away from the center of the substrate 10; at the same time, the second connecting part 202 of the left backrest module 20 is connected to the substrate 10 through a compressible spring, and the second connecting part 202 of the right backrest module 20 is connected to the substrate 10 through a compressible spring, so as to achieve a better car collision protection effect through the compressible spring and the elastic substrate 10.

[0215] In some embodiments of this application, for example, in an embodiment where the first connecting portion 201 of at least one backrest module 20 is rotatably connected to a first object and the second connecting portion 202 is elastically connected to a second object, the first connecting portion 201 of at least one backrest module 20 is located on the side of the second connecting portion 202 near the center of the substrate 10, and the second connecting portion 202 is elastically stretchably connected to the second object.

[0216] For example, in Figure 32 In the design, the first connecting part 201 of the left backrest module 20 for rotatable connection is located on the side of the second connecting part 202 for elastic connection near the center of the substrate 10, and the first connecting part 201 of the right backrest module 20 for rotatable connection is located on the side of the second connecting part 202 for elastic connection near the center of the substrate 10. At the same time, the second connecting part 202 of the left backrest module 20 is connected to the substrate 10 through a stretchable spring, and the second connecting part 202 of the right backrest module 20 is connected to the substrate 10 through a stretchable spring, so as to achieve a better car collision protection effect through the stretchable spring and the elastic substrate 10.

[0217] It is worth noting that the connection method between the backrest module 20 and the substrate 10 is not limited to this; for example, see [reference needed]. Figure 33 , Figure 33 This illustration shows another cross-sectional view of the connection between the backrest module 20 and the substrate 10 in an embodiment of this application, wherein the first connecting portion 201 and the second connecting portion 202 can also be elastically connected to the substrate 10. For example, see [reference needed]. Figure 34 , Figure 34 This paper shows another cross-sectional view of the connection between the backrest module 20 and the substrate 10 in an embodiment of this application, wherein the first connecting part 201 and the second connecting part 202 can also be rigidly connected to the substrate 10.

[0218] In some embodiments of this application, at least one backrest module 20 has a first connecting portion 201 connected to a rigid region 102 of a substrate 10, and a second connecting portion 202 connected to an elastic region 101 of a substrate 10.

[0219] For example, see Figure 35 , Figure 35This illustration shows another cross-sectional view of the connection between the backrest module 20 and the substrate 10 in an embodiment of this application. The first connecting portion 201 of the left backrest module 20 is connected to the rigid region 102 on the left edge of the substrate 10, and the second connecting portion 202 of the left backrest module 20 is connected to the elastic region 101 at the center of the substrate 10. The first connecting portion 201 of the right backrest module 20 is connected to the rigid region 102 on the right edge of the substrate 10, and the second connecting portion 202 of the right backrest module 20 is connected to the elastic region 101 at the center of the substrate 10. When the elastic region 101 at the center of the substrate 10 is concave and deformed, both the left and right backrest modules 20 can deflect towards the center of the substrate 10, thereby wrapping the user's back.

[0220] In some embodiments of this application, at least one backrest module 20 has a first connecting portion 201 connected to a rigid region 102 of a substrate 10, and a second connecting portion 202 connected to a rigid region 102 of a substrate 10.

[0221] For example, see Figure 36 , Figure 36 This illustration shows another cross-sectional view of the connection between the backrest module 20 and the substrate 10 in an embodiment of this application. The first connecting portion 201 of the left backrest module 20 is connected to the rigid region 102 on the left side of the substrate 10, and the second connecting portion 202 of the left backrest module 20 is connected to the rigid region 102 on the left edge of the substrate 10. The first connecting portion 201 of the right backrest module 20 is connected to the rigid region 102 on the right side of the substrate 10, and the second connecting portion 202 of the right backrest module 20 is connected to the rigid region 102 on the right edge of the substrate 10. After the substrate 10 is subjected to tension from the left and right sides of the left and right backrest modules 20 and the second connecting portions 202 of the right backrest module 20, the elastic region 101 at the center of the substrate 10 is deformed and indented. Both the left and right backrest modules 20 can deflect towards the center of the substrate 10, thereby wrapping around the user's back.

[0222] In some embodiments of this application, at least one backrest module 20 has a first connecting portion 201 connected to the elastic region 101 of the substrate 10, and a second connecting portion 202 connected to the elastic region 101 of the substrate 10.

[0223] For example, see Figure 37 , Figure 37This illustration shows another cross-sectional view of the connection between the backrest module 20 and the substrate 10 in an embodiment of this application. The first connecting portion 201 of the left backrest module 20 is connected to the elastic region 101 near the center of the substrate 10, and the second connecting portion 202 of the left backrest module 20 is connected to the elastic region 101 near the left edge of the substrate 10. The first connecting portion 201 of the right backrest module 20 is connected to the elastic region 101 near the center of the substrate 10, and the second connecting portion 202 of the right backrest module 20 is connected to the elastic region 101 near the right edge of the substrate 10. When the elastic region 101 at the center of the substrate 10 is deformed, both the left and right backrest modules 20 can deflect towards the center of the substrate 10, thereby wrapping the user's back.

[0224] In some embodiments of this application, at least one backrest module 20 has a first connecting portion 201 rotatably connected to the substrate 10, and a second connecting portion 202 elastically connected to the substrate 10.

[0225] For example, in Figure 35 In the middle, the first connecting part 201 of the left backrest module 20 is rotatably connected to the rigid region 102 on the left edge of the substrate 10, and the second connecting part 202 of the left backrest module 20 is elastically connected to the elastic region 101 in the center of the substrate 10; the first connecting part 201 of the right backrest module 20 is rotatably connected to the rigid region 102 on the right edge of the substrate 10, and the second connecting part 202 of the right backrest module 20 is elastically connected to the elastic region 101 in the center of the substrate 10. When the elastic region 101 in the center of the substrate 10 is concave and deformed, both the left and right backrest modules 20 can be deflected toward the center of the substrate 10 by relying on the first connecting part 201, thereby achieving a larger deflection angle.

[0226] For example, in Figure 36 In the middle, the first connecting part 201 of the left backrest module 20 is rotatably connected to the rigid region 102 on the left side of the substrate 10, and the second connecting part 202 of the left backrest module 20 is elastically connected to the rigid region 102 on the left edge of the substrate 10; the first connecting part 201 of the right backrest module 20 is rotatably connected to the rigid region 102 on the right side of the substrate 10, and the second connecting part 202 of the right backrest module 20 is elastically connected to the rigid region 102 on the right edge of the substrate 10. After the left and right sides of the substrate 10 are subjected to the tension of the second connecting parts 202 of the left and right backrest modules 20, the elastic region 101 in the center of the substrate 10 is deformed by indentation, and both the left and right backrest modules 20 can be deflected toward the center of the substrate 10 through the first connecting part 201, thereby achieving a larger deflection angle.

[0227] It is worth noting that the above-described connection of the first connecting portion 201 and the second connecting portion 202 of the backrest module 20 to the rigid region 102 and the elastic region 101 of the substrate 10 is only an exemplary embodiment. Those skilled in the art can determine the specific layout of the rigid region 102 and the elastic region 101 of the substrate 10 (e.g., Figures 2 to 9 The layout of the rigid region 102 and the elastic region 101 of the substrate 10 shown is modified in the same way.

[0228] In some embodiments of this application, when multiple backrest modules 20 are in a free state, there is a gap of a preset width between at least two adjacent backrest modules 20.

[0229] For example, see Figure 38 , Figure 38 This illustration shows a cross-sectional view of the connection between the backrest module 20 and the substrate 10 when multiple backrest modules 20 are in a free state according to an embodiment of this application. The left and right backrest modules 20 are not subjected to any force, and at this time, the left and right backrest modules 20 are in a free state. There is a gap of width D between the left and right backrest modules 20 to provide a gap for deflection. This not only allows the left and right backrest modules 20 to adjust their posture to adapt to the user's backrest curve, but also meets the requirement of a large deflection angle for the left and right backrest modules 20 after a car collision.

[0230] In some embodiments of this application, when multiple backrest modules 20 are under pressure, at least a portion of the substrate 10 is recessed away from the multiple backrest modules 20; wherein at least one backrest module 20 adjusts its posture as the substrate 10 is recessed, and the gap between at least two adjacent backrest modules 20 decreases as the recess depth of the substrate 10 increases.

[0231] For example, see Figure 39 , Figure 39This illustration shows a cross-sectional view of the connection between the backrest modules 20 and the substrate 10 when multiple backrest modules 20 are under pressure in an embodiment of this application. The second support portion 204 of the left backrest module 20 and the right backrest module 20 are both subjected to a force F. This force F can be, but is not limited to, the force exerted by the user's back on the seat when the user is sitting normally, when the car is braking, or when the car is involved in a collision. Under the action of the second connecting portion 202 of the left backrest module 20 and the right backrest module 20, the elastic region 101 at the center of the substrate 10 is recessed away from the multiple backrest modules 20. The left backrest module 20 rotates clockwise around the rotational connection of the first connecting portion 201, and the right backrest module 20 rotates counterclockwise around the rotational connection of the first connecting portion 201. At the same time, the gap between the left backrest module 20 and the right backrest module 20 decreases as the recess depth of the substrate 10 increases.

[0232] It is understood that the gap between two adjacent backrest modules 20 can be set by those skilled in the art according to actual needs (such as user comfort, protection against car collision accidents, etc.), and this application does not impose specific restrictions.

[0233] In some embodiments of this application, see Figure 40 , Figure 40 Another exploded view of the seat back in the embodiment of this application is shown, wherein the seat back also includes a backrest frame 30, and the base plate 10 is fixed on the backrest frame 30.

[0234] It should be noted that the backrest frame 30 can provide rigid support for the base plate 10, ensuring that the structural strength of the seat back meets the requirements. Generally, the backrest frame 30 can fix the edge area of ​​the base plate 10. When the edge area of ​​the base plate 10 is a rigid area 102, the rigid area 102 of the base plate 10 is fixedly connected to the backrest frame 30. However, it is not limited to this. For example, when the entire area of ​​the base plate 10 is an elastic area 101, fixing the edge area of ​​the base plate 10 with the backrest frame 30 can also meet the overall structural strength requirements of the seat back; or, for example, the backrest frame 30 can also fix the elastic area 101 in the middle of the base plate 10.

[0235] Those skilled in the art will understand that when the rigid region 102 of the substrate 10 has sufficient strength or the substrate 10 itself meets the structural strength requirements of the seat back, for example when the edge region of the substrate 10 is composed of a rigid frame forming the rigid region 102, then the backrest frame 30 is not a necessary structural component for the seat back.

[0236] In some embodiments of this application, for example, in an embodiment where one of the first object connected to the first connecting portion 201 and the second object connected to the second connecting portion 202 is a backrest frame 30, the first connecting portion 201 of at least one backrest module 20 can be connected to the backrest frame 30, and the second connecting portion 202 can be connected to the elastic region 101 or the rigid region 102 of the substrate 10. That is, the backrest module 20 can be partially connected to the backrest frame 30 and partially connected to the substrate 10.

[0237] In some embodiments of this application, at least one backrest module 20 has a first connecting portion 201 rotatably connected to the backrest frame 30, and a second connecting portion 202 elastically connected to the elastic region 101 of the substrate 10.

[0238] For example, see Figure 41 , Figure 41 This illustration shows a cross-sectional view of the connection between the backrest module 20 and the substrate 10 and the backrest frame 30 in an embodiment of this application. The first connecting portion 201 of the left backrest module 20 is rotatably connected to the left side of the backrest frame 30, and the second connecting portion 202 of the left backrest module 20 is elastically connected to the elastic region 101 at the center of the substrate 10. The first connecting portion 201 of the right backrest module 20 is rotatably connected to the right side of the backrest frame 30, and the second connecting portion 202 of the right backrest module 20 is elastically connected to the elastic region 101 at the center of the substrate 10. When the elastic region 101 at the center of the substrate 10 is concave and deformed, both the left and right backrest modules 20 can deflect towards the center of the substrate 10 through the first connecting portion 201, thereby achieving a larger deflection angle.

[0239] In some embodiments of this application, at least one backrest module 20 has a first connecting portion 201 elastically connected to the backrest frame 30, and a second connecting portion 202 rotatably connected to the elastic region 101 of the substrate 10.

[0240] For example, see Figure 42 , Figure 42This paper shows another cross-sectional view of the connection between the backrest module 20 and the substrate 10 and the backrest frame 30 in an embodiment of this application. The first connecting part 201 of the backrest module 20 on the left is rotatably connected to the elastic region 101 at the center of the substrate 10, and the second connecting part 202 of the backrest module 20 on the left is elastically connected to the left side of the backrest frame 30. The first connecting part 201 of the backrest module 20 on the right is rotatably connected to the elastic region 101 at the center of the substrate 10, and the second connecting part 202 of the backrest module 20 on the right is elastically connected to the right side of the backrest frame 30. When the elastic region 101 at the center of the substrate 10 is concave and deformed, both the left and right backrest modules 20 can be deflected toward the center of the substrate 10 through the first connecting part 201.

[0241] It is worth noting that the above-described connection of the first connecting portion 201 and the second connecting portion 202 of the backrest module 20 to the rigid region 102, the elastic region 101, or the backrest frame 30 of the substrate 10 is only an exemplary embodiment and is not actually limited thereto. For example, see [reference needed]. Figure 43 , Figure 43 This paper shows another cross-sectional view of the connection between the back support module and the substrate 10 and the backrest frame 30 in an embodiment of this application. The backrest module 20 may also be provided with a first connecting part 201 and two second connecting parts 202. The first connecting part 201 is rotatably connected to the rigid region 102 of the substrate 10, and the two second connecting parts 202 are elastically connected to the elastic region 101 of the substrate 10 and the backrest frame 30, respectively.

[0242] In some embodiments of this application, at least a portion of the rigid region 102 of the substrate 10 is fixedly connected to the backrest frame 30 to provide rigid support for the substrate 10 through the backrest frame 30.

[0243] For example, see Figure 44 , Figure 44 This paper shows a schematic diagram of a backrest frame 30 and an elastic substrate 10 in an embodiment of this application. The substrate 10 has two elastic regions 101 at its center, and the edge region of the substrate 10 is a rigid region 102. The rigid regions 102 on the left, right and top sides of the substrate 10 can be fixed to the backrest frame 30.

[0244] In some embodiments of this application, at least a portion of the elastic region 101 of the substrate 10 is fixedly connected to the backrest frame 30 to provide rigid support for the substrate 10 through the backrest frame 30.

[0245] For example, see Figure 45 , Figure 45This paper shows another structural schematic diagram of the backrest frame 30 and the elastic substrate 10 in an embodiment of this application. The substrate 10 has two elastic regions 101 on the left and right sides, while the central axis region of the substrate 10 is a rigid region 102. The edges of the elastic regions 101 on the left and right sides of the substrate 10 can be fixed to the backrest frame 30.

[0246] Those skilled in the art will understand that the shape of the backrest frame 30 and its fixing area to the substrate 10 are not limited to the above embodiments; for example, see [reference needed]. Figure 46 , Figure 46 This illustration shows another structural diagram of the backrest frame 30 and the elastic substrate 10 in an embodiment of this application. The backrest frame 30 can also be U-shaped, and the rigid regions 102 on the left, right and lower sides of the substrate 10 can be fixed to the backrest frame 30.

[0247] In some embodiments of this application, at least one backrest module 20 has a first hinge component 1 connected between its first connecting portion 201 and a first object, and a second connecting portion 202 has a first elastic component 2 connected between its second object.

[0248] For example, see Figure 47 , Figure 47 This illustration shows another cross-sectional view of the connection between the backrest module 20 and the substrate 10 in an embodiment of this application. The first connecting portion 201 of the left backrest module 20 is connected to the rigid region 102 on the left edge of the substrate 10 via a first hinge component 1, and the second connecting portion 202 of the left backrest module 20 is connected to the elastic region 101 at the center of the substrate 10 via a first elastic component 2. Similarly, the first connecting portion 201 of the right backrest module 20 is connected to the rigid region 102 on the right edge of the substrate 10 via a first hinge component 1, and the second connecting portion 202 of the right backrest module 20 is connected to the elastic region 101 at the center of the substrate 10 via a first elastic component 2. When the elastic region 101 at the center of the substrate 10 is deformed, both the left and right backrest modules 20 can be deflected toward the center of the substrate 10 via the first hinge component 1 and the first elastic component 2.

[0249] In some embodiments of this application, at least one backrest module 20 has a first connecting portion 201 connected to a first object with a first hinge component 1, and a second connecting portion 202 has a second hinge component 3 connected to a second object.

[0250] For example, see Figure 48 , Figure 48This illustration shows another cross-sectional view of the connection between the backrest module 20 and the substrate 10 in an embodiment of this application. The first connecting portion 201 of the left backrest module 20 is connected to the elastic region 101 on the left side of the central axis of the substrate 10 via a first hinge assembly 1. The second connecting portion 202 of the left backrest module 20 is connected to the rigid region 102 on the left edge of the substrate 10 via a second hinge assembly 3. The first connecting portion 201 of the right backrest module 20 is connected to the elastic region 101 on the right side of the central axis of the substrate 10 via a first hinge assembly 1. The second connecting portion 202 of the right backrest module 20 is connected to the rigid region 102 on the right edge of the substrate 10 via a second hinge assembly 3. When the elastic region 101 at the center of the substrate 10 is concave and deformed, the left backrest module 20 and the first hinge assembly 1 of the right backrest module 20 sink as the substrate 10 is concave. Both the left and right backrest modules 20 can be deflected toward the center of the substrate 10 via the first hinge assembly 1 and the second hinge assembly 3.

[0251] In some embodiments of this application, at least one backrest module 20 has a first elastic component 2 connected to a first object via a first connecting portion 201, and at least one second connecting portion 202 has a second elastic component 4 connected to a second object.

[0252] For example, see Figure 49 , Figure 49 This illustration shows another cross-sectional view of the connection between the backrest module 20 and the substrate 10 in an embodiment of this application. The first connecting portion 201 of the left backrest module 20 is connected to the elastic region 101 on the left side of the central axis of the substrate 10 via a first elastic component 2. The second connecting portion 202 of the left backrest module 20 is connected to the rigid region 102 on the left edge of the substrate 10 via a second elastic component 4. The first connecting portion 201 of the right backrest module 20 is connected to the elastic region 101 on the right side of the central axis of the substrate 10 via a first elastic component 2. The second connecting portion 202 of the right backrest module 20 is connected to the rigid region 102 on the right edge of the substrate 10 via a second elastic component 4. When the elastic region 101 at the center of the substrate 10 is concave and deformed, the first elastic components 2 of both the left and right backrest modules 20 sink as the substrate 10 is concave. Furthermore, both the left and right backrest modules 20 can be deflected toward the center of the substrate 10 through the first elastic component 2, the second elastic component 4, and the concave deformation of the substrate 10.

[0253] For example, the first hinge component 1 and the second hinge component 3 may include, but are not limited to, rotatably connected structural components such as ball joints and hinges, and the first elastic component 2 and the second elastic component 4 may include, but are not limited to, springs or rubber components.

[0254] It is worth noting that the above description of the seat back is intended to clearly illustrate the verification process of this application. Those skilled in the art can make equivalent modifications or further designs under the guidance of this application. For example, the layout of the multiple backrest modules 20 can be modified in shape and layout according to user experience requirements; the position of the fixing part on the substrate 10 can be adaptively adjusted according to the shape and layout of the multiple backrest modules 20; the setting of the elastic region 101 and rigid region 102 on the substrate 10 can be adaptively adjusted according to the shape and layout of the multiple backrest modules 20; and so on. (See also...) Figure 50 , Figure 50 Another exploded view of the seat back in an embodiment of this application is shown. The seat back may also include a protective shell 40 and a headrest 50 fixed to the backrest frame 30. The protective shell 40 prevents the backrest frame 30 from being exposed, thus achieving an aesthetically pleasing seat. The headrest 50 can provide head support for the user, further improving seat comfort.

[0255] Furthermore, to better implement the seat backrest in the embodiments of this application, this application also provides a car seat based on the seat backrest, the car seat including the seat backrest of any of the above embodiments. Since the car seat in the embodiments of this application has all the beneficial effects of the seat backrest described above, it will not be repeated here.

[0256] Furthermore, to better implement the car seat in the embodiments of this application, this application also provides a car, which includes the car seat of the above embodiments. Exemplarily, the car may be, but is not limited to, a gasoline-powered car, a pure electric car, a hybrid electric car, a plug-in hybrid electric car, a range-extended electric car, and a fuel cell car. Since the car seat in the embodiments of this application has all the beneficial effects of the seat backrest described in the above embodiments, these effects will not be repeated here.

[0257] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the detailed descriptions of other embodiments above, which will not be repeated here.

[0258] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0259] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0260] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments of the utility model, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0261] The above provides a detailed description of a seat back, a car seat, and a car provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A seat backrest, characterized in that, include: A substrate and a frame, wherein the substrate is fixed to the frame; Multiple backrest modules are mounted on the base plate, and the multiple backrest modules are combined to form a seat back support; The substrate is at least partially elastic, and at least one of the backrest modules adjusts its posture as the substrate elastically deforms.

2. The seat back as described in claim 1, characterized in that, At least a portion of the substrate may be recessed away from the plurality of backrest modules, and at least one of the backrest modules adjusts its posture as the substrate is recessed.

3. The seat back as described in claim 2, characterized in that, When at least a portion of the substrate is deformed by a depression, at least one of the backrest modules deflects toward the depression region of the substrate.

4. The seat back as described in claim 2, characterized in that, At least a portion of the substrate near the central axis may be recessed in a direction away from the plurality of backrest modules.

5. The seat back as described in claim 1, characterized in that, When multiple backrest modules are in a free state, there is a gap of a predetermined width between at least two adjacent backrest modules.

6. The seat back as described in claim 1, characterized in that, When the multiple backrest modules are under pressure, at least a portion of the substrate is recessed in a direction away from the multiple backrest modules; In this embodiment, at least one of the backrest modules adjusts its posture according to the concavity of the substrate, and the gap between at least two adjacent backrest modules decreases as the concavity depth of the substrate increases.

7. The seat back as described in claim 1, characterized in that, The substrate has at least one elastic region and at least one rigid region; The elastic modulus of any elastic region is less than the elastic modulus of any rigid region.

8. The seat back as described in claim 7, characterized in that, At least one of the backrest modules has at least one first connecting part and at least one second connecting part; At least one of the first connecting parts is connected to the first object, and at least one of the second connecting parts is connected to the second object; Wherein, at least one of the first object and the second object is an elastic region or a rigid region of the substrate.

9. The seat back as described in claim 8, characterized in that, At least one of the backrest modules has its first connecting portion rotatably connected to the first object, and its second connecting portion elastically connected to the second object.

10. The seat back as described in claim 9, characterized in that, At least one of the backrest modules includes a first support portion and a second support portion; The first support portion extends along a first direction, and the second support portion extends along a second direction; Wherein, the first direction is not parallel to the second direction, and the first connecting part for rotatable connection is located at the junction of the first support part and the second support part.

11. The seat back as described in claim 10, characterized in that, At least one of the second connecting portions of the backrest module is located on the side of the first support portion facing the substrate; or At least one of the backrest modules has its second connecting portion located on the side of the second support portion facing the substrate.

12. The seat back as described in claim 9, characterized in that, At least one of the backrest modules has its first connecting portion located on the side of the second connecting portion away from the center of the substrate, and the second connecting portion is elastically compressible to the second object.

13. The seat back as described in claim 9, characterized in that, At least one of the backrest modules has its first connecting portion located on the side of the second connecting portion near the center of the substrate, and the second connecting portion is elastically and stretchably connected to the second object.

14. The seat back as described in claim 8, characterized in that, At least one of the backrest modules has its first connecting portion connected to a rigid region of the substrate, and its second connecting portion connected to an elastic region of the substrate.

15. The seat back as described in claim 8, characterized in that, At least one of the backrest modules has its first connecting portion connected to a rigid region of the substrate, and its second connecting portion connected to a rigid region of the substrate.

16. The seat back as described in claim 8, characterized in that, At least one of the backrest modules has its first connecting portion connected to the elastic region of the substrate, and its second connecting portion connected to the elastic region of the substrate.

17. The seat back as described in any one of claims 14 to 16, characterized in that, At least one of the backrest modules has its first connecting portion rotatably connected to the substrate, and its second connecting portion elastically connected to the substrate.

18. The seat back as described in claim 8, characterized in that, At least one of the backrest modules has a first hinge component connecting the first connecting portion to the first object, and a first elastic component connecting the second connecting portion to the second object.

19. The seat back as described in claim 8, characterized in that, At least one of the backrest modules has a first hinge assembly connected between its first connecting portion and the first object, and a second hinge assembly connected between its second connecting portion and the second object.

20. The seat back as described in claim 8, characterized in that, At least one of the backrest modules has a first elastic component connected between its first connecting portion and the first object, and at least one of the second connecting portions has a second elastic component connected between its second connecting portion and the second object.

21. The seat back as described in claim 7, characterized in that, The substrate has a first elastic region and a second elastic region; The first elastic region and the second elastic region are located on both sides of the central axis of the substrate.

22. The seat back as described in claim 21, characterized in that, The substrate has a first rigid region; The first rigid region is arranged along the central axis of the substrate.

23. The seat back as described in claim 21, characterized in that, The substrate has a second rigid region; The second rigid region is arranged along the edge of the substrate.

24. The seat back as described in claim 7, characterized in that, The substrate has a first rigid region and a first elastic region; The first rigid region is arranged along the edge of the substrate, and the first rigid region surrounds the first elastic region.

25. The seat back as described in claim 7, characterized in that, The substrate has a first rigid region and a plurality of first elastic regions; The first rigid region is arranged along the edge of the substrate, and a plurality of the first elastic regions are located within the enclosure of the first rigid region.

26. The seat back as described in claim 7, characterized in that, The substrate has a first rigid region and a first elastic region; The first elastic region is arranged along the edge region of the substrate, and the first rigid region is arranged in a ring around the inner periphery of the first elastic region.

27. The seat back as described in claim 26, characterized in that, The substrate also has a second elastic region; The first rigid region surrounds the second elastic region.

28. The seat back as described in claim 7, characterized in that, The substrate has multiple first through slots extending through its elastic region.

29. The seat back as described in claim 7, characterized in that, The substrate has multiple first grooves formed in its elastic region.

30. The seat back as described in claim 7, characterized in that, The substrate has a second through groove in the elastic region corresponding to the size of the elastic region, and a plurality of elastic elements are installed in the second through groove.

31. The seat back as described in claim 1, characterized in that, The plurality of backrest modules include a first side wing support module and a second side wing support module; The first side wing support module and the second side wing support module are respectively installed on both sides of the central axis of the substrate.

32. The seat back as described in claim 1, characterized in that, The plurality of backrest modules include a plurality of first side wing support modules and a plurality of second side wing support modules; The first side wing support modules and the second side wing support modules are respectively installed on both sides of the central axis of the substrate.

33. The seat back as described in claim 31 or 32, characterized in that, The plurality of backrest modules also include a first end support module; The first end support module is installed at the first end of the substrate along the central axis.

34. The seat back as described in claim 31 or 32, characterized in that, The plurality of backrest modules also include a second end support module; The second end support module is installed at the second end of the substrate along the central axis.

35. The seat back as described in claim 1, characterized in that, Each of the backrest modules includes a backrest support plate.

36. The seat back as described in claim 1, characterized in that, Each of the backrest modules includes a backrest foam body.

37. The seat back as described in claim 1, characterized in that, Each of the backrest modules includes a backrest support plate and a backrest foam body, the backrest foam body being mounted on the side of the backrest support plate away from the substrate.

38. A car seat, characterized in that, Includes the seat back as described in any one of claims 1 to 37.

39. A car, characterized in that, Including the car seat as described in claim 38.

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