Seat and control method thereof, vehicle

Abstract

The application provides a seat and a control method thereof and a vehicle, and relates to the technical field of vehicles.The seat comprises a backrest framework, a backrest net framework, a locking device, a pulling member, a rotating shaft and a driving member.The backrest net framework is in sliding connection with the backrest framework.The rotating shaft is rotatably arranged on the backrest framework.The driving member is used for driving the rotating shaft to rotate.The pulling member is wound around the rotating shaft at one end and is fixed to the backrest framework after being connected with the backrest net framework at the other end.The locking device is used for limiting the rotation of the rotating shaft relative to the backrest framework.When the backrest net framework is subjected to a set pressure in a calibration direction, the locking device removes the limitation on the rotating shaft, so that the backrest net framework slides relative to the backrest framework in the calibration direction.The seat can reduce the whipping injury of the occupant when a collision occurs and restore the comfort of the seat after the collision, thereby providing better safety and riding experience.

Description

TECHNICAL FIELD

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

[0002] In the process of driving a car, when a rear-end collision occurs, it may cause a whiplash injury, especially when the head of the occupant swings before and after the instant of collision, which is prone to cause neck or soft tissue injury.

[0003] At present, in order to reduce the whiplash injury, a common seat design method is to increase the thickness of the headrest to reduce the distance between the head and the headrest. However, this design may affect the riding experience of some occupants and cause discomfort. SUMMARY

[0004] In order to solve at least one of the above problems, the present application provides a seat, a control method thereof and a vehicle.

[0005] In a first aspect, the present application provides a seat, comprising a backrest framework, a backrest net framework, a locking device, a pulling member, a rotating shaft and a driving member, the backrest net framework is in sliding connection with the backrest framework, the rotating shaft is rotationally arranged on the backrest framework, the driving member is used to drive the rotating shaft to rotate, one end of the pulling member is wound around the rotating shaft, and the other end is connected with the backrest net framework and fixed to the backrest framework, and the locking device is used to limit the rotation of the rotating shaft relative to the backrest framework; when the backrest net framework is subjected to a set pressure towards a designated direction, the locking device is released to limit the rotating shaft, so that the backrest net framework slides towards the designated direction relative to the backrest framework.

[0006] Optionally, the driving member comprises a driving motor, the driving motor is arranged on the backrest framework, and a motor shaft of the driving motor is in transmission connection with the rotating shaft.

[0007] Optionally, a first gear is arranged on the motor shaft, a second gear is arranged on the rotating shaft, and the first gear and the second gear are in mesh transmission.

[0008] Optionally, a receiving portion is arranged on the rotating shaft; the locking device comprises a housing structure, an electromagnetic member, an elastic member and a moving rod, the moving rod is movably arranged on the housing structure, the elastic member is connected with the moving rod, the electromagnetic member is arranged on a moving path of the moving rod, the moving rod is used to be inserted into the receiving portion, and the electromagnetic member is used to drive the moving rod to be separated from the receiving portion by magnetic force.

[0009] Optionally, the backrest net frame comprises a net body and a connecting piece, opposite ends of the net body are respectively provided with the connecting piece, the connecting piece comprises a sliding rod, the backrest frame is provided with a sliding groove extending along the front-rear direction of the seat, the sliding rod and the sliding groove are one-to-one corresponding, the sliding rod is slidingly arranged in the sliding groove, and at least one connecting piece is connected with the pulling piece.

[0010] Optionally, the connecting piece is provided with a plurality of sliding rods arranged at intervals along the height direction of the seat, and the sliding rods of the two connecting pieces are one-to-one corresponding.

[0011] Optionally, the pulling piece is wound around the sliding rod of the corresponding connecting piece.

[0012] Optionally, the seat further comprises a first pulley and a second pulley, the sliding rod is rotationally provided with the first pulley, the backrest frame comprises a first frame body and a second frame body arranged relative to and at intervals, the first frame body and the second frame body are respectively slidingly connected with the two connecting pieces, the first frame body and the second frame body are respectively provided with the second pulley, and each pulling piece is wound around the corresponding first pulley and the corresponding second pulley alternately.

[0013] In a second aspect, the present application provides a seat control method, applied to the seat as described above, comprising:

[0014] When the acceleration of the vehicle is within a first preset threshold, the locking device is controlled to release the restriction on the rotating shaft.

[0015] When the acceleration of the vehicle changes from within the first preset threshold to outside the first preset threshold, the driving piece is first controlled to work to drive the rotating shaft to rotate to a reset position, and then the locking device is controlled to restrict the rotation of the rotating shaft relative to the backrest frame.

[0016] In a third aspect, the present application provides a vehicle comprising the seat as described above.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] When the vehicle is running normally, the locking device limits the rotation of the rotating shaft relative to the backrest frame, so that the pulling member pulls the backrest frame to prevent it from sliding relative to the backrest frame. When the vehicle is involved in an accident such as being rear-ended, the occupant will move backward due to inertia, and then exert a greater pressure on the backrest frame than when sitting normally. At this time, the locking device is automatically released to limit the rotation of the rotating shaft, so that the rotating shaft can rotate to gradually release the pulling member thereon, so that the backrest frame can slide backward relative to the backrest frame. In this way, the occupant's back can at least partially sink into the backrest, reducing the distance between the occupant's head and the seat headrest, so that the occupant's head contacts the seat headrest earlier, thereby reducing the whipping injury caused by the vehicle collision to the occupant. After the collision ends, the driving member can drive the rotating shaft to rotate, and the backrest frame is reset by the pulling member to reduce the discomfort of the occupant due to the sinking of the backrest during normal driving. In summary, the seat of the present application can reduce the whipping injury of the occupant when the collision occurs, and restore the comfort of the seat after the collision ends, providing better safety and riding experience. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Structure diagram of the seat of an embodiment of the present application Figure 1 ;

[0020] Figure 2 Structure diagram of the seat of an embodiment of the present application Figure 2 ;

[0021] Figure 3 is a partial enlarged view of A in FIG. Figure 2

[0022] Figure 4 is a partial enlarged view of B in FIG. Figure 2

[0023] Figure 5 Structure diagram of the backrest frame of an embodiment of the present application

[0024] Figure 6 Partial exploded view of the locking device of an embodiment of the present application

[0025] Figure 7 Structure diagram of the locking device of an embodiment of the present application after assembly

[0026] Figure 8 Partial view of the rotating shaft of an embodiment of the present application.

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] ​​1, Backbone; 11, First frame; 12, Second frame; 13, Slide; 2, Backrest net frame; 21, Net body; 22, Connecting piece; 221, Slide rod; 3, Locking device; 31, Shell structure; 311, Outer shell; 312, Cover plate; 32, Electromagnetic element; 33, Elastic element; 34, Moving rod; 341, First rod body; 342, Second rod body; 343, Connecting plate; 4, Pulling piece; 5, Rotation shaft; 51, Containing part; 6, Driving piece; 7, First gear; 8, Second gear; 9, First pulley; 10, Second pulley. DETAILED DESCRIPTION

[0029] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0030] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0031] Furthermore, in the drawings, the Z-axis represents the vertical direction, that is, the up-down position, and the positive direction of the Z-axis (that is, the arrow direction of the Z-axis) represents up, and the negative direction of the Z-axis represents down; the X-axis represents the longitudinal direction, that is, the front-rear position, and the positive direction of the X-axis (that is, the arrow direction of the X-axis) represents front, and the negative direction of the X-axis represents rear; the Y-axis represents the lateral direction, that is, the left-right position, and the positive direction of the Y-axis (that is, the arrow direction of the Y-axis) represents right, and the negative direction of the Y-axis represents left.

[0032] It should also be noted that the aforementioned Z-axis, X-axis and Y-axis represent only the meaning for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0033] As Figure 1 , 2The seat of the embodiment of the present application comprises a backrest framework 1, a backrest net framework 2, a locking device 3, a pulling member 4, a rotating shaft 5 and a driving member 6. The backrest net framework 2 is slidably connected with the backrest framework 1. The rotating shaft 5 is rotatably arranged on the backrest framework 1. The driving member 6 is used to drive the rotating shaft 5 to rotate. One end of the pulling member 4 is wound around the rotating shaft 5. The other end of the pulling member 4 is connected with the backrest net framework 2 and then fixed on the backrest framework 1. The locking device 3 is used to limit the rotation of the rotating shaft 5 relative to the backrest framework 1. When the backrest net framework 2 is subjected to a set pressure in the direction of the calibration direction, the locking device 3 releases the limitation on the rotating shaft 5, so that the backrest net framework 2 slides relative to the backrest framework 1 in the direction of the calibration direction.

[0034] Specifically, for example, when a rear-end collision accident occurs, the speed of the vehicle will change, and the pressure applied by the occupant to the backrest will also change accordingly. At this time, it can be detected by an acceleration sensor whether a rear-end collision accident occurs. When it is confirmed that a rear-end collision accident occurs, the pressure applied by the occupant to the backrest corresponding thereto is obtained, or the pressure applied by the occupant to the backrest is directly detected by a pressure sensor arranged on the seat. And compare this pressure with the set pressure, wherein the set pressure is greater than the pressure applied by the occupant to the backrest during normal driving. When the above-mentioned pressure reaches the set pressure, the locking device can automatically unlock the rotating shaft, and then the backrest net framework can slide relative to the backrest framework.

[0035] As Figure 1As shown, the outer contour of the backrest frame 1 is generally U-shaped, meaning that the backrest frame 1 has an installation space in which the backrest mesh frame 2 is slidably disposed. The rotating shaft 5 is a straight round rod, which is rotatably disposed in the installation space and located at one end of the backrest frame 1 near the seat cushion frame. The driving component 6 is disposed on the backrest frame 1 and is drivenly connected to the driving component 6. The pulling component 4 is a steel wire rope or high-strength tension cable, one end of which is wound around the rotating shaft 5, and the other end is connected to the backrest mesh frame 2 and fixed to the backrest frame 1. The locking device 3 is disposed on the backrest frame 1 to limit the rotation of the rotating shaft 5 relative to the backrest frame 1. Thus, when the vehicle is in normal driving, the locking device 3 restricts the rotation of the rotating shaft 5 relative to the backrest frame 1, and the pulling component 4 pulls the backrest mesh frame 2, preventing it from sliding relative to the backrest frame 1. When a vehicle is involved in a rear-end collision, the occupants move backward due to inertia, exerting a greater pressure on the backrest mesh frame 2 than during normal sitting. At this point, the locking device 3 automatically releases the restriction on the rotating shaft 5, allowing it to rotate and gradually release the pulling member 4. This allows the backrest mesh frame 2 to slide backward relative to the backrest frame 1. In this way, the occupant's back can at least partially sink into the backrest, reducing the distance between the occupant's head and the headrest, allowing the occupant's head to contact the headrest earlier, thus reducing whiplash injuries caused by the collision. After the collision, the drive member 6 drives the rotating shaft 5 to rotate, and the pulling member 4 restores the backrest mesh frame 2 to its original position, reducing discomfort caused by the backrest's indentation during normal driving. In summary, the seat of this invention can reduce whiplash injuries during a collision and restore seat comfort after the collision, providing better safety and a better riding experience.

[0036] Optionally, the drive component 6 includes a drive motor, which is mounted on the backrest frame 1, and the motor shaft of the drive motor is connected to the rotating shaft 5 for transmission.

[0037] like Figure 3 As shown, the drive motor is installed in the mounting space of the backrest frame 1. The drive motor can be directly connected to the rotating shaft 5 or indirectly connected to the transmission shaft. There is no restriction here, and it depends on the actual needs.

[0038] In this way, the drive motor is mounted on the backrest frame 1, making the transmission between it and the rotating shaft 5 more compact and efficient. This layout reduces the complexity of the transmission and improves transmission efficiency. Moreover, the motor shaft of the drive motor is connected to the rotating shaft 5, which transmits the rotational motion of the drive motor to the rotating shaft 5, thereby realizing the rotation of the rotating shaft 5 and ultimately resetting the backrest frame 2.

[0039] At the same time, when the vehicle is rear-ended, the drive motor can also rotate to release the pulling member 4 on the rotating shaft 5, thereby quickly releasing the pulling member 4.

[0040] Optionally, the motor shaft is provided with a first gear 7, and the rotating shaft 5 is provided with a second gear 8, the first gear 7 and the second gear 8 are in meshing transmission.

[0041] As shown in Figure 3 , the motor shaft is coaxially provided with a first gear 7, and the rotating shaft 5 is coaxially provided with a second gear 8, the first gear 7 and the second gear 8 are in meshing transmission. In this way, when the driving motor works, the motor shaft first drives the first gear 7 to rotate, the first gear 7 drives the second gear 8 to rotate, the second gear 8 drives the third gear to rotate, through meshing transmission, the power of the motor can be effectively transmitted to the rotating shaft 5, reducing energy loss and improving transmission efficiency.

[0042] In this embodiment, the transmission ratio of the first gear 7 and the second gear 8 can be 1:1 or 1.5:1 or 1:1.5, etc., which is not limited here and is determined according to actual needs. For example, if the diameter of the first gear 7 is smaller than that of the second gear 8, the torque can be amplified to provide more driving force; if the diameter of the first gear 7 is larger than that of the second gear 8, the speed can be increased to provide faster movement.

[0043] In other embodiments, the first gear 7 and the second gear 8 can also be connected in transmission by a belt or a chain. Here, it is not limited and is determined according to actual needs.

[0044] Optionally, the rotating shaft 5 is provided with a receiving portion 51; the locking device 3 includes a shell structure 31, an electromagnetic member 32, an elastic member 33 and a moving rod 34, the moving rod 34 is movably arranged in the shell structure 31, the elastic member 33 is connected with the moving rod 34, the electromagnetic member 32 is arranged on the moving path of the moving rod 34, the moving rod 34 is used for being inserted into the insertion hole, and the electromagnetic member 32 is used for driving the moving rod 34 to be separated from the insertion hole through magnetic force.

[0045] As shown in Figure 8 , the circumferential side wall of the rotating shaft 5 is provided with a receiving portion 51. As shown in Figure 6 , 7As shown, the locking device 3 includes a housing structure 31, an electromagnetic component 32, an elastic component 33, and a moving rod 34. The housing structure 31 includes an outer shell 311 and a cover plate 312. The outer shell 311 has an installation cavity with an inlet. The cover plate 312 is located at the inlet of the installation cavity and has a through hole. The moving rod 34 includes a first rod body 341, a second rod body 342, and a connecting plate 343. The outer contour shape of the connecting plate 343 matches the outer contour shape of the installation cavity. The two end faces of the connecting plate 343 in the thickness direction are respectively connected to the first rod body 341 and the second rod body 342. The first rod body 341 is a magnetic component and is located in the installation cavity. At least a portion of the second rod body 342 is located outside the installation cavity through the through hole. The elastic component 33 is a spring, one end of which is sleeved on the first rod body 341, and the other end is connected to the outer shell 311. The electromagnetic component 32 is located in the installation cavity and on the moving path of the moving rod 34. Thus, when the electromagnetic component 32 is not energized, the second rod 342 is inserted into the receiving portion 51 of the rotating shaft 5 under the action of the spring force; when the electromagnetic component 32 is energized, the electromagnetic component 32 generates a magnetic force to attract the first rod 341, and the first rod 341 will drive the second rod 342 to move towards the inside of the mounting cavity until the first rod 341 disengages from the receiving portion 51. In this way, the rotating shaft can be reliably locked through the cooperation of the receiving portion 51 and the moving rod 34.

[0046] In this embodiment, the receiving part 51 is a socket or slot, and its shape is not limited, depending on the actual needs.

[0047] In other embodiments, the locking device 3 may also be a miniature cylinder or a miniature electric cylinder, which can be inserted and engaged with the receiving part 51 through a piston rod. There is no limitation here, and it depends on the actual needs.

[0048] Optionally, the backrest frame 2 includes a mesh body 21 and connectors 22. Connectors 22 are provided at opposite ends of the mesh body 21. Each connector 22 includes a sliding rod 221. The backrest frame 1 is provided with a slide rail 13 extending along the front-back direction of the seat. The connectors 22 and the slide rail 13 are provided in a one-to-one correspondence. The sliding rod 221 is slidably disposed on the slide rail 13. At least one connector 22 is connected to a pull member 4.

[0049] In this embodiment, the fore-aft direction of the seat refers to, for example, Figure 1 The X-axis direction is shown.

[0050] like Figure 5As shown, the left and right ends of the mesh body 21 are respectively provided with connectors 22. Each connector 22 includes a sliding rod 221. The backrest frame 1 is provided with a slide rail 13 extending along the front-back direction of the seat. The sliding rod 221 and the slide rail 13 are arranged in a one-to-one correspondence. The sliding rod 221 is slidably disposed on the slide rail 13. Each of the two connectors 22 is connected to a pull member 4. In this way, the sliding rod 221 and the slide rail 13 are arranged to achieve reliable sliding of the connector 22 on the backrest frame 1.

[0051] Optionally, the pull member 4 is connected around the sliding rod 221 of the corresponding connector 22. In this way, no additional fasteners such as screws or clips are needed during assembly, resulting in high loading and unloading efficiency.

[0052] Optionally, the connector 22 is provided with a plurality of spaced sliding rods 221 along the height direction of the seat, and the sliding rods 221 of the two connectors 22 are provided in a one-to-one correspondence.

[0053] In this embodiment, the height direction of the seat refers to, for example, Figure 1 The Z-axis direction is shown.

[0054] like Figure 5 As shown, the connector 22 has two spaced sliding rods 221 along the Z-axis. The sliding rods 221 of the two connectors 22 are symmetrically arranged, that is, the four sliding rods 221 are located at the four corners of a square structure. In this way, when the backrest frame 2 slides relative to the backrest skeleton 1, the backrest frame 2 will not rotate relative to the backrest skeleton 1.

[0055] Optionally, the seat also includes a first pulley 9 and a second pulley 10. The sliding rod 221 is rotatably provided with the first pulley 9. The backrest frame 1 includes a first frame 11 and a second frame 12 that are arranged opposite to and spaced apart. The first frame 11 and the second frame 12 are slidably connected to two connecting members 22 respectively. The first frame 11 and the second frame 12 are respectively provided with the second pulley 10. Each pulling member 4 is alternately wound around the corresponding first pulley 9 and the corresponding second pulley 10.

[0056] like Figure 4 As shown in the figure, each connector 22 is provided with two sliding rods 221, and each sliding rod 221 is rotatably provided with a first pulley 9. The backrest frame 1 includes a first frame 11 and a second frame 12. The first frame 11 and the second frame 12 are spaced apart along the Y-axis. The first frame 11 and the second frame 12 are slidably connected to the two connectors 22 respectively. The first frame 11 and the second frame 12 are provided with two second pulleys 10 respectively. Each pulling member 4 is alternately wound around the corresponding first pulley 9 and the corresponding second pulley 10.

[0057] In this way, when the backrest net frame 2 slides relative to the backrest framework 1, the pulling member 4 drives the corresponding first pulley 9 and the corresponding second pulley 10 to roll, so that damage to the pulling member 4 can be reduced.

[0058] The seat control method of the embodiment of the application is applied to the seat as described above, and comprises the following steps:

[0059] When the acceleration of the vehicle is greater than or equal to the first preset threshold, the locking device 3 is controlled to release the restriction on the rotating shaft 5.

[0060] When the acceleration of the vehicle changes from greater than or equal to the first preset threshold to less than the first preset threshold, the driving member 6 is first controlled to work to drive the rotating shaft 5 to rotate to the reset position, and then the locking device 3 is controlled to restrict the rotating shaft 5 from rotating relative to the backrest framework 1.

[0061] According to research and safety standards, it is generally considered that when the acceleration of a vehicle in a collision exceeds 4 to 6 , there is a risk of whiplash injury to the occupant. Therefore, in the embodiment, the first preset threshold is 4 . For example, when the acceleration of the vehicle is 5 , the vehicle is most likely to be severely rear-ended, at which time the locking device 3 is controlled to release the restriction on the rotating shaft 5, and the occupant will move backward due to inertia, and then will apply a greater pressure to the backrest net frame 2 than when normally seated, at which time the locking device is controlled to release the restriction on the rotating shaft, so that the rotating shaft can rotate to gradually release the pulling member thereon, so that the backrest net frame 2 can slide backward relative to the backrest framework 1, and in the process of sliding, the pulling member 4 gradually releases the pulling member 4 on the rotating shaft 5. Subsequently, when the acceleration of the vehicle changes from 5 to 3 , the driving member 6 is first controlled to work to drive the rotating shaft 5 to rotate to the reset position, and then the locking device 3 is controlled to restrict the rotating shaft 5 from rotating relative to the backrest framework 1.

[0062] The seat control method of the embodiment can be controlled by the original vehicle terminal of the vehicle, or can be controlled by an additional controller, which is not limited here and is determined according to actual needs.

[0063] The vehicle of another embodiment of the application comprises the seat as described above.

[0064] The vehicle of the embodiment has the same beneficial effects as the seat described above relative to the prior art, and therefore will not be described again here.

[0065] It is to be understood that the description of the description of the present application, the reference to the term "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. Descriptive terms such as "exemplary" in the present description do not necessarily refer to the same embodiment or example. Moreover, the described particular features, structures, materials or characteristics can be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present description and the features of the different embodiments or examples without contradiction, within the scope of the present application.

[0066] Although the present application is disclosed as above, the protection scope of the present application is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and these changes and modifications will fall within the protection scope of the present application.

Claims

1. A seat, characterized in that, The backrest framework (1), the backrest net framework (2), the locking device (3), the pulling member (4), the rotating shaft (5) and the driving member (6) are included, the backrest net framework (2) is slidably connected with the backrest framework (1), the rotating shaft (5) is rotatably arranged on the backrest framework (1), the driving member (6) is used for driving the rotating shaft (5) to rotate, one end of the pulling member (4) is wound on the rotating shaft (5), the other end is connected with the backrest net framework (2) and is fixed on the backrest framework (1), the locking device (3) is used for limiting the rotating shaft (5) relative to the backrest framework (1) to rotate, when the backrest net framework (2) is subjected to the set pressure towards the calibration direction, the locking device (3) is released to limit the rotating shaft (5), so that the backrest net framework (2) is slid relative to the backrest framework (1) towards the calibration direction, the backrest net framework (2) includes the connecting piece (22), the backrest framework (1) is provided with the slide (13) extending along the front and back direction of the seat, the connecting piece (22) includes the sliding rod (221), the sliding rod (221) is slidably arranged on the slide (13). It also includes the first pulley (9) and the second pulley (10), the sliding rod (221) is rotatably provided with the first pulley (9), the backrest framework (1) includes the first frame body (11) and the second frame body (12) oppositely and spacedly arranged, the first frame body (11) and the second frame body (12) are respectively provided with the second pulley (10), each pulling member (4) is alternately wound on the corresponding first pulley (9) and the corresponding second pulley (10).

2. The seat of claim 1, wherein The driving member (6) includes a driving motor, the driving motor is arranged on the backrest framework (1), and the motor shaft of the driving motor is in transmission connection with the rotating shaft (5).

3. The seat of claim 2, wherein, The motor shaft is provided with a first gear (7), the rotating shaft (5) is provided with a second gear (8), and the first gear (7) and the second gear (8) are in mesh transmission.

4. The seat of claim 1, wherein The rotating shaft (5) is provided with a containing portion (51), the locking device (3) includes a housing structure (31), an electromagnetic member (32), an elastic member (33) and a moving rod (34), the moving rod (34) is movably arranged on the housing structure (31), the elastic member (33) is connected with the moving rod (34), the electromagnetic member (32) is arranged on the moving path of the moving rod (34), the moving rod (34) is used for being inserted into the containing portion (51), and the electromagnetic member (32) is used for driving the moving rod (34) to be separated from the containing portion (51) through magnetic force.

5. The seat of claim 1, wherein, The backrest net framework (2) further includes a net body (21), opposite ends of the net body (21) are respectively provided with the connecting piece (22), the connecting piece (22) and the slide (13) are one-to-one correspondingly arranged, and at least one connecting piece (22) is connected with the pulling member (4).

6. The seat of claim 5, wherein, The connecting pieces (22) are provided with a plurality of sliding rods (221) arranged at intervals in the seat height direction, and the sliding rods (221) of the two connecting pieces (22) are arranged in one-to-one correspondence.

7. The seat of claim 6, wherein, The first frame body (11) and the second frame body (12) are respectively in sliding connection with the two connecting pieces (22).

8. A seat control method applied to the seat according to any one of claims 1 to 7, characterized in that, The application relates to a seat. When the acceleration of the vehicle is greater than or equal to a first preset threshold, the locking device (3) is controlled to release the restriction on the rotating shaft (5); When the acceleration of the vehicle changes from greater than or equal to the first preset threshold to less than the first preset threshold, the driving member (6) is first controlled to work to drive the rotating shaft (5) to rotate to a reset position, and then the locking device (3) is controlled to restrict the rotation of the rotating shaft (5) relative to the backrest framework (1).

9. A vehicle characterized by comprising: The application relates to a seat.

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