Seat, vehicle and seat control method

Abstract

The invention relates to the technical field of seats, and discloses a seat, a vehicle and a control method of the seat. Wherein the backrest comprises a supporting piece, a surface sleeve assembly and an adjusting assembly, the supporting piece is rotationally connected with the cushion, the surface sleeve assembly covers the supporting piece, at least one part of the surface sleeve assembly can move in the width direction of the seat, one part of the adjusting assembly is connected with the supporting piece, and the other part of the adjusting assembly is connected with the surface sleeve assembly; the adjusting assembly can move relative to the supporting piece in the width direction. In the process that the adjusting assembly moves in the width direction, the face sleeve assembly can be driven to move relative to the supporting piece in the width direction so as to change the width of the backrest. According to the technical scheme, the backrest of the seat can be adjusted according to a user, so that the backrest can adapt to users with different body types.

Description

Technical Field

[0001] This application relates to the technical field of seats, and in particular, to a seat, a vehicle, and a control method for the seat. Background Art

[0002] The seat is a main part of the vehicle interior and is the vehicle part that the driver and passengers contact for the longest time. The comfort of the seat has a great impact on the driving and riding experience of the driver and passengers. The seats in vehicles are usually general-purpose. For drivers and passengers of different body sizes, when using the same type of seat, there will be different usage experiences, that is, the same type of seat cannot adapt to drivers and passengers of different body sizes. Summary of the Invention

[0003] This application provides a seat, a vehicle, and a control method for the seat, which can adjust the backrest of the seat according to the user so that the backrest can adapt to users of different body sizes.

[0004] In a first aspect, this application provides a seat, which includes: a seat cushion and a backrest; wherein, the backrest includes a support member, a cover assembly, and an adjustment assembly. The support member is rotatably connected to the seat cushion. The cover assembly covers the support member. Along the width direction of the seat, at least a part of the cover assembly can move. A part of the adjustment assembly is connected to the support member, and the other part is connected to the cover assembly. The adjustment assembly can move relative to the support member along the width direction; during the movement of the adjustment assembly along the width direction, it can drive the cover assembly to move relative to the support member along the width direction to change the width of the backrest.

[0005] For the seat provided by this application, since the backrest includes a support member and a cover assembly, the backrest can maintain a stable shape and provide sufficient support force through the support member, and a comfortable sitting feeling can be provided through the cover assembly. And the support member is rotatably connected to the seat cushion, which is convenient for adjusting the inclination angle of the backrest. At the same time, at least a part of the cover assembly is arranged to be able to move along the width direction of the seat, and an adjustment assembly is arranged between the support member and the cover assembly. The adjustment assembly can drive the cover assembly to move along the width direction of the seat, so that the width of the backrest of the seat can be quickly and conveniently adjusted according to different users, and then the backrest can adapt to users of different body sizes, which is beneficial to improving the wrapping and support of the backrest for users of different body sizes.

[0006] In a possible implementation manner of the present application, the middle part of the face cover assembly can move in the width direction. The middle part is the part of the face cover assembly that is closer to the center of the support member in the width direction; the adjustment assembly includes a filling member and a conveying assembly. The filling member can undergo elastic deformation and encloses to form a sealed filling space. One part of the filling member is connected to the support member, and the other part is connected to the face cover assembly. The conveying assembly is connected to the filling member and communicates with the filling space. The conveying assembly is used to convey fluid into the filling space to change the volume of the filling space in the width direction.

[0007] In a possible implementation manner of the present application, the middle part of the face cover assembly is elastic and can undergo elastic deformation.

[0008] In a possible implementation manner of the present application, the adjustment assembly includes at least two filling members. The at least two filling members are distributed in the face cover assembly in the width direction. In the width direction, one side of the at least two filling members that is closer to the center of the support member is connected to the support member, and one side of each filling member that is farther from the center of the support member is connected to the wing part of the face cover assembly. The wing part is the part of the face cover assembly that is located on both sides of the backrest respectively in the width direction.

[0009] In a possible implementation manner of the present application, the adjustment assembly further includes a telescopic assembly. The telescopic assembly can move in the width direction. One side of the telescopic assembly that is closer to the center of the support member in the width direction is fixed to the support member, and one side of the telescopic assembly that is farther from the center of the support member in the width direction is fixed to the wing part. The telescopic assembly is used to limit the movement distance of the wing part in the width direction.

[0010] In a possible implementation manner of the present application, the telescopic assembly includes at least two sliding members that are slidably connected. There is a limiting structure between adjacent two sliding members, and the limiting structure can limit the movement distance of the adjacent two sliding members in the width direction.

[0011] In a possible implementation manner of the present application, the conveying assembly includes an air pump, and the air pump is connected to the filling member.

[0012] In a possible implementation manner of the present application, the seat further includes at least one of the following: a lumbar support airbag, a massage airbag. The lumbar support airbag is arranged in the area between the face cover assembly and the support member close to the seat cushion. The massage airbag is arranged between the face cover assembly and the support member and is located on the side of the lumbar support airbag away from the seat cushion. The air pump is connected to a control valve, and the filling member, the lumbar support airbag, and the massage airbag are all communicated with the control valve.

[0013] In a possible implementation manner of the present application, the seat further includes a detection member and a controller. A plurality of detection members are distributed in the seat cover assembly along the width direction. The detection members are used to detect the pressure parameters of the seat cover assembly. Each detection member is electrically connected to the controller, and the adjustment assembly is electrically connected to the controller. The controller is configured to control the movement of the adjustment assembly according to the pressure parameters.

[0014] In a second aspect, the present application provides a vehicle, which includes: a vehicle body and the seat provided in any one of the above; wherein, the seat cushion is arranged in the cockpit of the vehicle body.

[0015] For the vehicle provided by the present application, since it includes the seat provided in any one of the above in the first aspect, therefore, the width of the backrest of the seat can be quickly and conveniently adjusted according to different occupants, so that the backrest can adapt to occupants of different body types, which is beneficial to improving the wrapping and support of the backrest for occupants of different body types.

[0016] In a third aspect, the present application provides a control method for a seat. The control method for the seat is applied to the seat provided in any one of the above. The control method includes: obtaining the real-time pressure values of different regions of the backrest of the seat; determining the sitting region of the user relative to the backrest based on the real-time pressure values of different regions; and controlling the adjustment assembly to drive the seat cover assembly to move along the width direction of the backrest until the backrest matches the sitting region when the backrest does not match the sitting region.

[0017] For the control method for the seat provided by the present application, since the sitting region of the user relative to the backrest is determined according to the real-time pressure values of different regions of the backrest of the seat, it can be determined whether the width of the backrest is suitable for the user. And when the backrest does not match the sitting region, controlling the adjustment assembly to drive the seat cover assembly to move along the width direction of the seat can adjust the width of the backrest to match the user's back, so as to provide good wrapping and support for the user's back, which is beneficial to improving the user experience. Description of the Drawings

[0018] Figure 1 is a schematic front internal structure diagram of the seat provided by the present application;

[0019] Figure 2 is a schematic top internal structure diagram of the seat provided by the present application;

[0020] Figure 3 is a schematic structure diagram of the seat provided by the present application before adjustment;

[0021] Figure 4 is a schematic structure diagram of the seat provided by the present application after adjustment;

[0022] Figure 5 is a schematic structure diagram of the adjustment assembly in the seat provided by the present application;

[0023] Figure 6 Schematic structural diagram of the telescopic assembly in the seat provided for this application;

[0024] Figure 7 Flowchart of the control method for the seat provided for this application.

[0025] Reference numerals:

[0026] 1 - Cushion; 2 - Backrest; 21 - Support member; 22 - Cover assembly; 221 - Middle part; 222 - Flank part; 23 - Adjustment assembly; 231 - Filling member; 232 - Delivery assembly; 233 - Control valve; 234 - Telescopic assembly; 2341 - Sliding member; 3 - Headrest; 4 - Lumbar support airbag; 5 - Massage airbag; 6 - Controller; Y - Width direction. Detailed implementation manners

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will further describe the specific technical solutions of this application in detail with reference to the accompanying drawings in the embodiments of this application. The following embodiments are used to illustrate this application but are not used to limit the scope of this application.

[0028] In the embodiments of this application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of this application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0029] In addition, in the embodiments of this application, orientation terms such as "upper", "lower", "left", and "right" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, and they are used for relative description and clarification, and they may change accordingly with the change of the orientation of the components placed in the accompanying drawings.

[0030] In the embodiments of this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" may be a fixed connection, a detachable connection, or integrated; it may be directly connected or indirectly connected through an intermediate medium.

[0031] In the embodiments of the present application, the term "comprise", "include" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising such element.

[0032] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be construed as more preferred or advantageous than other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0033] For different types of vehicles, the seat configurations are different. The adjustment methods of the seat include manual adjustment and electric adjustment, and the adjustment types of the seat include backrest adjustment, front-back adjustment of the seat cushion, height adjustment of the seat cushion, tilt angle adjustment of the seat cushion, and multi-directional adjustment of the lumbar support, etc. Seats with various configurations are convenient for the driver and passengers to find a comfortable sitting position, so that the driver and passengers can drive or ride in a relatively comfortable posture.

[0034] In the related art, the backrest of the seat is designed according to the body size data of most people. For drivers and passengers with smaller body sizes and larger body sizes, the width of the backrest of such seats is not very suitable, and for drivers and passengers with smaller and larger body sizes, the wrapping and support of the seat are insufficient.

[0035] The embodiments of the present application provide a seat that can adjust the backrest of the seat according to the user, so that the backrest can adapt to users with different body sizes. Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , Figure 1 is the internal front view structural schematic diagram of the seat provided by the present application, Figure 2 is the internal top view structural schematic diagram of the seat provided by the present application, Figure 3 is the structural schematic diagram of the seat before adjustment provided by the present application, Figure 4 is the structural schematic diagram of the seat after adjustment provided by the present application, Figure 5Schematic diagram of the structure of the adjustment component in the seat provided by this application. The seat provided by the embodiments of this application can be used in any suitable scenario. For example, the seat provided by the embodiments of this application can be used in any means of transportation such as vehicles, airplanes, trains, high-speed multiple units, ships, etc., and can also be used in cinemas, families, etc. For the convenience of description and explanation, the seat provided by the embodiments of this application will be described below taking the seat used in a vehicle as an example, but it does not limit that the seat provided by the embodiments of this application can only be used in a vehicle.

[0036] The seat provided by the embodiments of this application includes: a seat cushion 1 and a backrest 2; wherein, the backrest 2 includes a support member 21, a cover assembly 22 and an adjustment component 23. The support member 21 is rotatably connected to the seat cushion 1. The cover assembly 22 is wrapped around the support member 21. Along the width direction Y of the seat, at least a part of the cover assembly 22 can move. A part of the adjustment component 23 is connected to the support member 21, and the other part is connected to the cover assembly 22. The adjustment component 23 can move relative to the support member 21 along the width direction Y; during the movement of the adjustment component 23 along the width direction Y, it can drive the cover assembly 22 to move relative to the support member 21 along the width direction Y to change the width of the backrest 2.

[0037] In the embodiments of this application, the seat cushion 1 can be fixed in a vehicle, etc., and can provide support for the user's buttocks and legs. The seat cushion 1 can be set to include a bracket and a covering member. The bracket can be made of materials such as metal and plastic. The bracket can be set to a frame structure, or a structure for connecting to the vehicle body, etc. can be provided on the bracket. The covering member can be wrapped outside the bracket, and the covering member can be made of a relatively soft material.

[0038] In the embodiments of this application, the backrest 2 is connected to the seat cushion 1 to form a seat. The backrest 2 can provide support for the user's back. The backrest 2 can be set to include a support member 21, a cover assembly 22 and an adjustment component 23. The support member 21 can be made of metal materials, plastic materials, etc. with higher hardness and strength, so that the backrest 2 can maintain a stable shape and provide sufficient support force through the support member 21. The cover assembly 22 can include a cover, a filling member, etc. The cover can be made of artificial leather such as polyvinyl chloride (PVC) imitation leather, and can also be made of fabrics such as linen and flannel. The filling member can be made of materials with higher elasticity such as foam and sponge. The filling member can be set on the support member 21, and the cover can be wrapped outside the filling member to form the backrest 2. A headrest 3 can be provided at one end of the backrest 2 away from the seat cushion 1.

[0039] Exemplarily, the support member 21 can be rotatably connected to the bracket inside the seat cushion 1 to facilitate adjusting the tilt angle of the backrest 2. Along the width direction Y of the seat, the seat cover and the filling member can be arranged as structures capable of generating movement, or the seat cover can be arranged as a structure capable of generating movement. For example, the part of the seat cover close to the center of the support member 21 is arranged as a retractable folding structure. In this way, through the folding structure, the seat cover assembly 22 can move in the direction away from the center of the support member 21 along the width direction Y of the seat, and the seat cover assembly 22 can also move in the direction close to the center of the support member 21 along the width direction Y of the seat.

[0040] In another example, the adjustment assembly 23 can be arranged as a structure capable of generating movement along the width direction Y of the seat. A part of the adjustment assembly 23 capable of generating relative movement can be fixedly connected to the support member 21, and another part of the adjustment assembly 23 capable of generating relative movement can be connected to the seat cover assembly 22. In this way, by adjusting the adjustment assembly 23, the adjustment assembly 23 can drive the seat cover assembly 22 to move along the width direction Y of the seat, so that the two sides of the backrest 2 along the width direction Y can approach or move away from each other to adjust the width of the backrest 2.

[0041] For the seat provided by the embodiment of the present application, since the backrest 2 includes the support member 21 and the seat cover assembly 22, the backrest 2 can be kept in a stable shape and sufficient support force can be provided through the support member 21, and a comfortable sitting feeling can be provided through the seat cover assembly 22. And the support member 21 is rotatably connected to the seat cushion 1 to facilitate adjusting the tilt angle of the backrest 2. At the same time, at least a part of the seat cover assembly 22 is arranged as a structure capable of generating movement along the width direction Y of the seat, and the adjustment assembly 23 is arranged between the support member 21 and the seat cover assembly 22. The adjustment assembly 23 can drive the seat cover assembly 22 to generate movement along the width direction Y of the seat, so that the width of the backrest 2 of the seat can be quickly and conveniently adjusted according to different users, and then the backrest 2 can adapt to users of different body types, which is beneficial to improving the wrapping and support of the backrest 2 for users of different body types.

[0042] In some possible embodiments of the present application, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the middle part 221 of the face cover assembly 22 can move in the width direction Y. The middle part 221 is the part of the face cover assembly 22 that is closer to the center of the support member 21 in the width direction Y. The adjustment assembly 23 includes a filling member 231 and a delivery assembly 232. The filling member 231 can undergo elastic deformation and encloses a sealed filling space. A part of the filling member 231 is connected to the support member 21, and another part is connected to the face cover assembly 22. The delivery assembly 232 is connected to the filling member 231 and communicates with the filling space. The delivery assembly 232 is used to deliver fluid to the filling space to change the size of the filling space in the width direction Y.

[0043] In the embodiment of the present application, the middle part 221 of the face cover assembly 22 can be set as a structure capable of moving. For example, the face cover of the middle part 221 can be set as an approximately "Z-shaped" folding structure, and the folding structure can be folded or unfolded along the width direction Y of the seat, so as to change the width of the middle part 221. Alternatively, the middle part 221 of the face cover assembly 22 can be set as a structure with elasticity, so that the middle part 221 can undergo elastic deformation along the width direction Y of the seat. For example, the face cover of the middle part 221 uses an elastic fabric that can stretch and contract, and the stretching direction of the fabric is along the width direction Y of the seat.

[0044] In the embodiment of the present application, the adjustment assembly 23 can be set as a structure including a filling member 231 and a delivery assembly 232. The filling member 231 provides a driving force to the face cover assembly 22 through its expansion deformation to drive the face cover assembly 22 to move in the width direction Y.

[0045] Exemplarily, the filling member 231 can be an elastic airbag. For example, the filling member 231 can be made of materials such as polyurethane and polyvinyl chloride, which have excellent elasticity, toughness, and wear resistance. The shape of the filling member 231 can be set according to the space inside the backrest 2. For example, the filling member 231 can be set as a long strip structure with a length close to that of the middle part 221, and the filling member 231 is made into a sealed bag shape so that the filling member 231 has a filling space. A part of the filling member 231 can be fixedly connected to the support member 21 by bonding, clamping, etc., or a part of the filling member 231 can be abutted against the support member 21. Another part of the filling member 231 can be connected to the face cover assembly 22. For example, another part of the filling member 231 can be fixedly connected to the face cover by bonding, clamping, etc.

[0046] In another example, fluid can be conveyed to the inflatable member 231 through the conveying assembly 232 to fill the fluid into the inflation space, so that the inflatable member 231 expands and becomes larger in the width direction Y of the seat, and drives the seat cover and the filling member to move in the width direction Y of the seat away from the center of the support member 21. During the process of discharging the fluid from the inflatable member 231, the inflatable member 231 contracts and becomes smaller under the action of its own elastic force. At this time, the inflatable member 231 can drive the seat cover and the filling member to move in the width direction Y of the seat towards the center of the support member 21, or the seat cover can drive the filling member to move in the width direction Y of the seat towards the center of the support member 21 under the action of its own elastic force. For example, the conveying assembly 232 can adopt an air pump, and the air pump can be hermetically connected to the inflatable member 231 through a pipeline to convey air and the like to the inflation space through the air pump. The conveying assembly 232 can also adopt a liquid delivery pump, and the liquid delivery pump can be hermetically connected to the inflatable member 231 through a pipeline to convey liquids such as water to the inflation space through the liquid delivery pump.

[0047] In the above embodiment, since the middle part 221 of the seat cover assembly 22 can move in the width direction Y of the seat, it is convenient for both sides of the seat cover assembly 22 to move in the width direction Y of the seat. And the adjusting assembly 23 is set as the inflatable member 231 and the conveying assembly 232, and the conveying assembly 232 can convey fluid to the inflatable member 231, so as to change the volume of the inflatable member 231 in the width direction Y of the seat, and thus the seat cover assembly 22 can be driven by the inflatable member 231 to move in the width direction Y of the seat. Compared with driving the seat cover assembly 22 to move in the width direction Y of the seat through a mechanical structure, in the embodiment of the present application, the seat cover assembly 22 is driven to move by the inflatable member 231, and the structure is simpler. It can not only improve the reliability of the adjusting assembly 23, but also reduce the cost of the seat.

[0048] In some possible embodiments of the present application, as Figure 5 shown, the adjusting assembly 23 includes at least two inflatable members 231. The at least two inflatable members 231 are distributed in the seat cover assembly 22 along the width direction Y of the seat. Along the width direction Y, the side of the at least two inflatable members 231 close to the center of the support member 21 is connected to the support member 21, and the side of each inflatable member 231 away from the center of the support member 21 is connected to the wing part 222 of the seat cover assembly 22. The wing part 222 is the part of the seat cover assembly 22 located on both sides of the backrest 2 along the width direction Y.

[0049] In the embodiments of the present application, two inflatable members 231 may be provided inside the seat. For example, the inflatable member 231 is arranged in the shape of an approximately rectangular parallelepiped sealed bag. That is, the shape of the inflatable member 231 is approximately rectangular parallelepiped after inflation. Two rectangular parallelepiped-shaped cavities for accommodating the inflatable members 231 may be reserved between the seat cover assembly 22 and the support member 21. The two rectangular parallelepiped-shaped cavities for accommodating the inflatable members 231 are distributed along the width direction Y of the seat.

[0050] Exemplarily, the inner sides of the two inflatable members 231 close to the center of the support member 21 may be connected to the support member 21, such as by bonding. Alternatively, the inner sides of the two inflatable members 231 close to the center of the support member 21 may be connected to the part of the filling member located at the center of the backrest 2. The outer sides of each inflatable member 231 away from the center of the support member 21 may be connected to the wing parts 222 of the seat cover assembly 22, such as by abutting or bonding the outer sides of the inflatable member 231 away from the center of the support member 21 against the filling member of the wing parts 222. And both of the two inflatable members 231 are connected to the conveying assembly 232 through pipelines.

[0051] In another example, three inflatable members 231, four inflatable members 231, or other numbers of inflatable members 231 may also be provided in the backrest 2. The three inflatable members 231 may be sequentially arranged in the backrest 2 along the width direction Y of the seat. Each two inflatable members 231 may be stacked along the thickness direction of the backrest 2 to form an inflatable assembly, and two groups of inflatable assemblies are arranged in the backrest 2 along the width direction Y of the seat. The embodiments of the present application do not limit the number of the inflatable members 231.

[0052] In this way, during the process of the two inflatable members 231 expanding along the width direction Y of the seat, the two inflatable members 231 can respectively push one wing part 222 to move in the direction away from each other along the width direction Y of the seat, thereby increasing the width of the backrest 2. And during the process of the two inflatable members 231 contracting along the width direction Y of the seat, the middle part 221 can drive the two wings to move in the direction close to each other along the width direction Y of the seat under the action of the elastic fabric, thereby reducing the width of the backrest 2.

[0053] In the above embodiments, since the adjusting assembly 23 includes at least two inflatable members 231, at least one inflatable member 231 may be respectively provided for the two wing parts 222 of the backrest 2, so that at least one inflatable member 231 can apply a force along the width direction Y of the seat to each wing part 222, thereby facilitating the precise adjustment of the width of the backrest 2.

[0054] In some possible embodiments of the present application, with reference to Figure 6 , Figure 6Schematic diagram of the telescopic assembly 234 in the seat provided by the present application. The adjusting assembly 23 further includes a telescopic assembly 234. The telescopic assembly 234 can move along the width direction Y. One side of the telescopic assembly 234 close to the center of the support member 21 is fixed to the support member 21 along the width direction Y, and one side of the telescopic assembly 234 far from the center of the support member 21 along the width direction Y is fixed to the flank part 222. The telescopic assembly 234 is used to limit the movement distance of the flank part 222 along the width direction Y.

[0055] In an embodiment of the present application, a telescopic assembly 234 can be provided in the adjusting assembly 23 to limit the movement distance of the flank part 222 of the backrest 2 along the width direction Y of the seat through the telescopic assembly 234.

[0056] Exemplarily, the telescopic assembly 234 can adopt a flexible mesh, cord, etc. Along the width direction Y of the seat, one end of the mesh can be fixedly connected to the central part of the support member 21, and the other end of the mesh can be fixed to the face cover of the flank part 222. Alternatively, along the width direction Y of the seat, one end of the mesh can be fixed to the face cover of one flank part 222, and the other end of the mesh can be fixed to the face cover of the other flank part 222. Wherein, the length of the mesh along the width direction Y of the seat is adapted to the maximum designed width of the backrest 2. In this way, during the process of the two flank parts 222 moving away from each other, when the mesh is pulled and straightened, the two flank parts 222 can be restricted from continuing to move relative to each other, thereby restricting the maximum adjustment width of the backrest 2.

[0057] Another example, as Figure 6 shown, the telescopic assembly 234 includes at least two sliding members 2341 connected in a sliding manner. There is a limiting structure between two adjacent sliding members 2341, and the limiting structure can limit the movement distance of two adjacent sliding members 2341 along the width direction Y. For example, three sliding members 2341 can be provided in the telescopic assembly 234. If the sliding members 2341 are set as cylindrical structures and the radial dimensions of the three sliding members 2341 increase in sequence, the three cylindrical sliding members 2341 can be sleeved in sequence, so that the three sliding members 2341 can move relative to each other. Protrusions can be provided on the inner wall of each sliding member 2341, and blocking rings corresponding to the protrusions can be provided at the ends of adjacent sliding members 2341, so as to limit the separation of the two sliding members 2341 during the relative sliding process through the cooperation of the protrusions and the blocking rings. The telescopic assembly 234 composed of a plurality of sliding members 2341 can be arranged in the backrest 2 along the width direction Y of the seat, that is, the innermost sliding member 2341 is fixedly connected to the central part of the support member 21, and the outermost sliding member 2341 is fixedly connected to the flank part 222.

[0058] In another example, the inflation member 231 can be brought into contact with the telescopic assembly 234. For example, in the thickness direction of the backrest 2, the inflation member 231 can be disposed within the telescopic assembly 234 composed of a plurality of sliding members 2341, so that the telescopic assembly 234 can limit the direction of deformation of the inflation member 231 during inflation, that is, the inflation member 231 can be moved along the width direction Y of the seat.

[0059] In the above embodiment, since the adjustment assembly 23 further includes the telescopic assembly 234, the telescopic assembly 234 can limit the movement distance of the side wing portion 222 of the backrest 2 in the width direction Y, and can limit the inflation direction of the inflation member 231. In this way, not only the adjustment range of the width of the backrest 2 can be limited, but also the telescopic assembly 234 can guide the inflation member 231 to move along the width direction Y of the seat, thereby reducing the risk of deformation of the backrest 2 in the thickness direction.

[0060] In some possible embodiments of the present application, as Figure 1 and Figure 2 shown, the seat further includes at least one of the following: a lumbar support airbag 4 and a massage airbag 5. The lumbar support airbag 4 is disposed in the region between the cover assembly 22 and the support member 21 close to the seat cushion 1, and the massage airbag 5 is disposed between the cover assembly 22 and the support member 21 and is located on the side of the lumbar support airbag 4 away from the seat cushion 1. The air pump is connected to the control valve 233, and the inflation member 231, the lumbar support airbag 4, and the massage airbag 5 are all communicated with the control valve 233.

[0061] In the embodiments of the present application, at least one of the lumbar support airbag 4 and the massage airbag 5 can be provided in the seat. For example, the lumbar support airbag 4 can be provided in the region of the backrest 2 close to the seat cushion 1, and the lumbar support airbag 4 can be disposed within the cover assembly 22. The massage airbag 5 can be provided in the middle portion 221 of the backrest 2, and the massage airbag 5 can be disposed within the cover assembly 22.

[0062] Exemplarily, a control valve 233 can be provided in the seat. The control valve 233 has a plurality of air outlets. The inflation member 231, the lumbar support airbag 4, and the massage airbag 5 can be respectively communicated with an air outlet of the control valve 233 through pipelines. And the air pump is communicated with the air inlet of the control valve 233. Each air outlet of the control valve 233 can be independently opened or closed, so that the inflation member 231, the lumbar support airbag 4, and the massage airbag 5 can be inflated by the same air pump respectively.

[0063] In the above embodiment, since the lumbar support airbag 4 and / or the massage airbag 5 are provided in the backrest 2, the shape of the portion of the backrest 2 close to the seat cushion 1 can be changed by the lumbar support airbag 4, so that good support can be provided for the waists of users in different sitting postures, and the back of the user can be massaged by the massage airbag 5, thereby improving the comfort of the user using the seat.

[0064] In some possible embodiments of the present application, such as Figure 1 and Figure 2 shown, the seat further includes a detection member (not shown in the figure) and a controller 6. A plurality of detection members are distributed along the width direction Y on the cover assembly 22. The detection member is used to detect the pressure parameters of the cover assembly 22. Each detection member is electrically connected to the controller 6, and the adjustment assembly 23 is electrically connected to the controller 6. The controller 6 is configured to control the movement of the adjustment assembly 23 according to the pressure parameters.

[0065] In the embodiments of the present application, a plurality of detection members can be arranged in the seat. For example, detection members can be arranged in both the middle part 221 and the wing part 222 of the backrest 2. The detection members can be arranged in the cover assembly 22. The detection members can adopt sensors capable of detecting pressure parameters, such as resistive pressure sensors, capacitive pressure sensors, piezoelectric pressure sensors, magnetoelectric pressure sensors, etc.

[0066] Exemplarily, a controller 6 can be arranged in the seat. The controller 6 can adopt an Electronic Control Unit (ECU), etc. Each detection member can be electrically connected to the controller 6, and an air pump in the adjustment assembly 23, etc., can be electrically connected to the controller 6. In this way, after the user sits on the seat, the detection members in each part of the backrest 2 can detect the magnitude of the pressure exerted by the user's back on the backrest 2, and thus the user's body shape can be determined. For example, when the user has a larger body shape, the two sides of the user's back will closely adhere to the wing part 222 of the backrest 2, while the pressure exerted on the middle part 221 of the backrest 2 is smaller. When the user has a smaller body shape, the user's back will closely adhere to the middle part 221 of the backrest 2, while the pressure exerted on the wing part 222 of the backrest 2 is smaller, or the user cannot adhere to the wing part 222. Then, the controller 6 can control the air pump to inflate the filling member 231, or control the control valve 233 to release the gas in the filling member 231, so as to change the width of the backrest 2 and make the width of the backrest 2 match the width of the user's back. At this time, each detection member on the backrest 2 can detect a pressure value, and the difference between all the pressure values is within a preset range.

[0067] In the above embodiments, since a plurality of detection members are arranged on the backrest 2, each detection member is electrically connected to the controller 6, and the controller 6 is electrically connected to the adjustment assembly 23, it is possible to determine whether the width of the backrest 2 matches the width of the user's back according to the pressure parameters of different parts of the user's back applied to the backrest 2 detected by the plurality of detection members, so as to realize the automatic adjustment of the width of the backrest 2, so that the backrest 2 provides a good wrapping feeling for the user, which is beneficial to improving the user experience.

[0068] In addition, an embodiment of the present application further provides a vehicle, which includes: a vehicle body and the seat provided in any one of the above embodiments; wherein, the seat cushion 1 is arranged in the cockpit of the vehicle body.

[0069] In the embodiments of the present application, the vehicle can be a sedan model, an off-road vehicle model, a multi-purpose vehicle (MPV) or other vehicle models. In addition, in the embodiments of the present application, the power source of the vehicle is not limited either. For example, the vehicle in the embodiments of the present application can be a fuel vehicle, a gas vehicle, a hybrid vehicle or a new energy vehicle, etc.

[0070] Exemplarily, the vehicle includes a vehicle body, which refers to the part of the vehicle for carrying people or goods. The vehicle body can include a cockpit, a passenger cabin and other cockpits for passengers, and can also include a cargo hold, etc. The seat provided in the embodiments of the present application can be arranged in the cockpit or in the passenger cabin.

[0071] Since the vehicle provided in the embodiments of the present application includes the seat provided in any one of the above embodiments, the width of the backrest 2 of the seat can be quickly and conveniently adjusted according to different riders, so that the backrest 2 can adapt to riders of different body types, which is beneficial to improving the wrapping and support of the backrest 2 for riders of different body types.

[0072] An embodiment of the present application further provides a control method for a seat. The control method for the seat is applied to the seat provided in any one of the above embodiments. Refer to Figure 7 , Figure 7 is a flowchart of the control method for the seat provided in the present application. As Figure 7 shown, the control method for the seat can be implemented through the following steps S101 to S103.

[0073] S101. Obtain the real-time pressure values of different regions of the backrest of the seat.

[0074] In the embodiments of the present application, after the user sits on the seat, the user's back will exert pressure on the backrest. Then, the real-time pressure values exerted by the user on different regions of the backrest can be obtained by detection components such as pressure sensors arranged on the backrest. For example, when the user leans against the flank part of the seat cover assembly, the pressure sensor arranged on the flank part can detect the real-time pressure value received by the flank part. When the user leans against the middle part of the seat cover assembly, the pressure sensor arranged on the middle part can detect the real-time pressure value received by the middle part.

[0075] S102. Determine the sitting area of the user relative to the backrest based on the real-time pressure values of different regions.

[0076] In the embodiments of the present application, when users of different body types use the same seat, the areas where the backs of users of different body types are in contact with the backrest are different, that is, the sitting areas of users of different body types on the backrest are different. The sitting area can be understood as the projection area of the user's back on the backrest along the thickness direction of the backrest.

[0077] Exemplarily, when the user has a larger body type, the two sides of the user's back will tightly contact the wing parts of the cover assembly and exert a greater pressure on the wing parts, while exerting a smaller pressure on the middle part of the cover assembly. At this time, the sitting area of the user relative to the backrest is at least larger than the area between the wing parts of the cover assembly, that is, the sitting area of the user relative to the backrest extends beyond the edge of the backrest along the width direction of the seat, and the middle part of the cover assembly does not provide good support for the user's back.

[0078] In another example, when the user has a smaller body type, the user's back will tightly contact the middle part of the cover assembly and exert a greater pressure on the middle part, while exerting a smaller pressure on the wing parts of the cover assembly, or not contacting the wing parts. At this time, the sitting area of the user relative to the backrest is completely within the wing parts, that is, the wing parts do not provide good support for the two sides of the user's back.

[0079] S103. When the backrest does not match the sitting area, control the adjustment assembly to drive the cover assembly to move along the width direction of the backrest until the backrest matches the sitting area.

[0080] In the embodiments of the present application, when the sitting area of the user relative to the backrest extends beyond the wing parts of the cover assembly, or when the sitting area of the user relative to the backrest does not cover the wing parts, the width of the backrest needs to be adjusted.

[0081] Exemplarily, it is possible to control the adjustment assembly to move along the width direction of the seat, that is, it is possible to inflate the filling member to cause the filling member to expand along the width direction of the seat, or release the gas in the filling member to cause the filling member to contract along the width direction of the seat. During the process of controlling the filling member to drive the cover assembly of the wing part to move along the width direction of the seat, it is possible to determine whether to stop adjusting the width of the backrest according to the real-time pressure values obtained by the detection members of the wing part and the middle part. That is, when the projection of the sitting area of the user relative to the backrest on the backrest exactly covers the entire backrest, it is possible to control the air pump to stop inflating the filling member, or control the control valve to stop releasing the gas in the filling member. At this time, the backrest matches the sitting area of the user relative to the backrest.

[0082] The control method of the seat provided by the embodiment of the present application can determine whether the width of the backrest is suitable for the user by determining the sitting area of the user relative to the backrest according to the real-time pressure values of different areas of the backrest of the seat. And in the case where the backrest does not match the sitting area, controlling the adjusting component to drive the face cover component to move along the width direction of the seat can adjust the width of the backrest to match the user's back, so as to provide good wrapping and support for the user's back, which is beneficial to improving the user experience.

[0083] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A seat, characterized in that, Comprising: Seat cushion; Backrest, the backrest includes a support member, a cover assembly and an adjustment assembly. The support member is rotatably connected to the seat cushion. The cover assembly covers the support member. Along the width direction of the seat, at least a part of the cover assembly can move. A part of the adjustment assembly is connected to the support member, and another part is connected to the cover assembly. The adjustment assembly can move relative to the support member along the width direction. During the movement of the adjustment assembly along the width direction, it can drive the cover assembly to move relative to the support member along the width direction to change the width of the backrest.

2. The seat according to claim 1, characterized in that, The middle part of the cover assembly can move along the width direction. The middle part is the part of the cover assembly that is closer to the center of the support member along the width direction. The adjustment assembly includes a filling member and a conveying assembly. The filling member can generate elastic deformation and encloses a sealed filling space. A part of the filling member is connected to the support member, and another part is connected to the cover assembly. The conveying assembly is connected to the filling member and communicates with the filling space. The conveying assembly is used to convey fluid to the filling space to change the volume of the filling space along the width direction.

3. The seat according to claim 2, characterized in that, The middle part of the cover assembly has elasticity and can generate elastic deformation.

4. The seat according to claim 2, characterized in that, The adjustment assembly includes at least two of the filling members. At least two of the filling members are distributed in the cover assembly along the width direction. Along the width direction, the side of at least two of the filling members closer to the center of the support member is connected to the support member, and the side of each filling member away from the center of the support member is connected to the flank part of the cover assembly. The flank part is the part of the cover assembly located on both sides of the backrest along the width direction.

5. The seat according to claim 4, characterized in that, The adjustment assembly further includes a telescopic assembly. The telescopic assembly can move along the width direction. The side of the telescopic assembly closer to the center of the support member along the width direction is fixed to the support member, and the side of the telescopic assembly away from the center of the support member along the width direction is fixed to the flank part. The telescopic assembly is used to limit the movement distance of the flank part along the width direction.

6. The seat according to claim 5, characterized in that, The telescopic assembly includes at least two slidably connected sliding members. There is a limiting structure between adjacent two of the sliding members, and the limiting structure can limit the movement distance of adjacent two of the sliding members along the width direction.

7. The seat according to claim 2, wherein The conveying assembly includes an air pump, and the air pump is connected to the filling member.

8. The seat according to claim 7, characterized in that, It further includes at least one of the following: a lumbar support airbag, a massage airbag. The lumbar support airbag is arranged in the area between the cover assembly and the support member close to the seat cushion. The massage airbag is arranged between the cover assembly and the support member and is located on the side of the lumbar support airbag away from the seat cushion. The air pump is connected to a control valve, and the filling member, the lumbar support airbag and the massage airbag are all communicated with the control valve.

9. The seat according to any one of claims 1 to 8, characterized in that, It further includes a detection member and a controller. A plurality of the detection members are distributed in the face cover assembly along the width direction. The detection member is used to detect the pressure parameter of the face cover assembly. Each detection member is electrically connected to the controller. The adjustment assembly is electrically connected to the controller. The controller is configured to control the movement of the adjustment assembly according to the pressure parameter.

10. A vehicle, characterized in that, Comprising: A vehicle body; The seat according to any one of claims 1 to 9, wherein the seat cushion is disposed in the cockpit of the vehicle body.

11. A control method for a seat, characterized in that, Applied to the seat according to any one of claims 1 to 9, the control method includes: Obtaining real-time pressure values of different regions of the backrest of the seat; Based on the real-time pressure values of different regions, determining the sitting area of the user relative to the backrest; When the backrest does not match the sitting area, controlling the adjustment assembly to drive the face cover assembly to move along the width direction of the backrest until the backrest matches the sitting area.

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