Vehicle and seat thereof

Abstract

A vehicle and a seat thereof. The seat comprises a slide rail, a seat cushion, and a backrest, wherein the seat cushion is slidable relative to the slide rail in a first direction and is rotatable in a second direction; the backrest is slidable relative to the slide rail in the first direction and is rotatable in the second direction; the seat cushion comprises a first surface that is opposite to a use surface of the seat cushion in a sitting state; the backrest comprises a second surface that is opposite to the use surface of the backrest in the sitting state; the seat has a first non-sitting state, in which the first surface is located on the side of the seat cushion away from the slide rail in a third direction, and the second surface is located on the side of the backrest away from the slide rail in the third direction; and in a first plane perpendicular to the third direction, the projection of the seat cushion does not overlap with the projection of the backrest.

Description

Vehicles and their seats

[0001] This application claims priority to Chinese patent application No. 202421376585.2, filed on June 17, 2024; Chinese patent application No. 202421414384.7, filed on June 20, 2024; and Chinese patent application No. 202421383899.5, filed on June 17, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of vehicle technology, and more particularly to a vehicle and its seat. Background Technology

[0003] As users have different needs for vehicle interior space, when purchasing a car, they need to meet the needs of multiple people traveling together, as well as the needs of interior space under specific circumstances. Summary of the Invention

[0004] This disclosure aims to at least address one of the technical problems existing in the related art. To this end, this disclosure proposes a seat that has multiple states, which can improve the utilization of vehicle interior space.

[0005] This disclosure also proposes a vehicle including the aforementioned seat.

[0006] According to a first aspect embodiment of the present disclosure, the seat includes a slide rail, a seat cushion, and a backrest. The seat cushion is slidable relative to the slide rail along a first direction and is rotatable about a second direction. The backrest is slidable relative to the slide rail along the first direction and is rotatable about the second direction. The seat cushion includes a first surface opposite to the usable surface of the seat cushion in a sitting state. The backrest includes a second surface opposite to the usable surface of the backrest in a sitting state. The seat has a first non-sitting state, in which the first surface is located on the side of the seat cushion away from the slide rail along a third direction, and the second surface is located on the side of the backrest away from the slide rail along a third direction. The first direction is the length direction of the slide rail, and the first direction and the third direction are orthogonal. In a first plane perpendicular to the third direction, the projection of the seat cushion and the projection of the backrest do not coincide.

[0007] According to embodiments of the present disclosure, the seat cushion and backrest move independently relative to the slide rail, allowing them to be fully flattened. This avoids the problem of the backrest not being fully flattened when flipped onto the seat cushion, further reducing the space occupied by the seat and freeing up more space. Simultaneously, because the seat cushion and backrest move and rotate independently, the seat allows for selective flattening of one or both of them according to user needs, providing users with more options.

[0008] In some embodiments, in the first non-sitting state, the seat cushion moves along the first direction toward a direction away from the backrest and flips forward by a first preset angle α1 around the second direction, and the backrest flips around the second direction toward the seat cushion by a second preset angle β1.

[0009] In some embodiments, in the first non-sitting state, the backrest moves along the first direction toward a direction away from the seat cushion and flips forward about the second direction by a fourth preset angle β2, and the seat cushion flips about the second direction toward a direction away from the backrest by a third preset angle α2.

[0010] In some embodiments, the first surface is formed as a plane.

[0011] In some embodiments, the second surface is formed as a plane.

[0012] In some embodiments, when the seat is in a first non-sitting state, the adjacent ends of the seat cushion and the backrest are in contact with each other.

[0013] In some embodiments, the seat has a second non-sitting state, in which the seat cushion and the backrest are stacked along the first direction, and the usable surface of the backrest in the sitting state is in contact with the first surface.

[0014] In some embodiments, in the second non-sitting state, the seat cushion moves along the first direction toward a direction away from the backrest, and the seat cushion rotates around the second direction by a fifth preset angle α3, the backrest moves along the first direction to contact the seat cushion, and the backrest rotates around the second direction by a sixth preset angle β3.

[0015] In some embodiments, the seat has a third non-sitting state. When the seat is in the third non-sitting state, the backrest rotates around the second direction toward the seat cushion by a seventh preset angle β4, and the usable surface of the backrest contacts the usable surface of the seat cushion.

[0016] In some embodiments, the seat has a fourth non-sitting state. When the seat is in the fourth non-sitting state, the backrest rotates a ninth preset angle β5 about the second direction toward a direction away from the seat cushion, and the seat cushion rotates an eighth preset angle α5 about the second direction toward a direction away from the backrest.

[0017] In some embodiments, the slide rail includes: a first slide rail and a second slide rail, wherein the first slide rail is movably engaged with the seat cushion; and the second slide rail is movably engaged with the backrest, and the first slide rail and the second slide rail are spaced apart along the first direction.

[0018] In some embodiments, at least one of the backrest or the seat cushion includes a first frame and a second frame. The first frame is movably connected to the slide rail; the second frame is hinged to the first frame.

[0019] In some embodiments, the first frame includes two sub-plates spaced apart along a fourth direction, the two sub-plates being movably engaged with the slide rail along the first direction, and at least a portion of the second frame is disposed between the two sub-plates. The fourth direction is perpendicular to both the first direction and the third direction.

[0020] In some embodiments, at least one of the backrest or the seat cushion includes an angle adjuster disposed between the first frame and the second frame to adjust the rotation angle of the second frame relative to the first frame.

[0021] In some embodiments, at least one of the backrest or the seat cushion further includes a driver and a drive shaft. The driver is disposed on the second frame; the drive shaft is tractively connected to both the driver and the adjuster, and the driver and the drive shaft drive the adjuster to rotate.

[0022] In some embodiments, the angle adjuster includes at least one of a manual angle adjuster and an electric angle adjuster.

[0023] In some embodiments, the seat further includes a control unit that communicates with the seat cushion and the backrest respectively to control the movement of the seat cushion and the backrest.

[0024] The vehicle according to a second aspect of this disclosure includes the seat described above.

[0025] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0026] The above-described aspects and advantages of this disclosure will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 is a schematic diagram of the first group of seats and the second group of seats in a seating state according to some embodiments of the present disclosure;

[0028] Figure 2 is a schematic diagram of a first set of seats in a sitting state and a second set of seats in a third non-sitting state according to some embodiments of the present disclosure;

[0029] Figure 3 is a schematic diagram showing that both the first group of seats and the second group of seats are in a third non-riding state according to some embodiments of the present disclosure;

[0030] Figure 4 is a schematic diagram of a seat in a first combined state according to some embodiments of the present disclosure;

[0031] Figure 5 is a schematic diagram of the seat in a second combined state according to some embodiments of the present disclosure;

[0032] Figure 6 is a schematic diagram of a seat in a second non-sitting state according to some embodiments of the present disclosure;

[0033] Figure 7 is a schematic diagram of the seat in a third combined state according to some embodiments of the present disclosure;

[0034] Figure 8 is a schematic diagram of a seat in a first non-sitting state according to some embodiments of the present disclosure;

[0035] Figure 9 is a schematic diagram of the assembly of the seat cushion and slide rail according to some embodiments of the present disclosure;

[0036] Figure 10 is a schematic diagram of the assembly of the backrest and the slide rail according to some embodiments of the present disclosure;

[0037] Figure 11 is a magnified view of region P in Figure 10;

[0038] Figure 12 is an assembly diagram of the first and second supports of the backrest and seat cushion according to some embodiments of the present disclosure;

[0039] Figure 13 is a block diagram of a vehicle according to some embodiments of the present disclosure;

[0040] Figure 14 is a schematic diagram of a first structure of a leg rest according to some embodiments of the present disclosure;

[0041] Figure 15 is a schematic diagram of a second structure of a leg rest according to some embodiments of the present disclosure;

[0042] Figure 16 is a schematic diagram of a third structure of a leg rest according to some embodiments of the present disclosure;

[0043] Figure 17 is a partial structural diagram of a leg rest according to some embodiments of the present disclosure;

[0044] Figure 18 is a first exploded view of a leg rest according to some embodiments of the present disclosure;

[0045] Figure 19 is a second exploded view of a leg rest according to some embodiments of the present disclosure;

[0046] Figure 20 is a structural diagram of a vehicle seat according to some embodiments of the present disclosure in a vehicle usage scenario;

[0047] Figure 21 is a structural diagram of the seat in Figure 20 in another vehicle usage scenario;

[0048] Figure 22 is a structural diagram of the seat cushion in Figure 20;

[0049] Figure 23 is a structural diagram of the seat cushion in Figure 22 after it has been flipped forward 180°.

[0050] Figure 24 is a partial exploded view of the seat cushion in Figure 22;

[0051] Figure 25 is an exploded view of the first connecting plate and the first angle adjuster in Figure 24. Detailed Implementation

[0052] In related technologies, the seat cushions and backrests inside the vehicle cannot be folded down completely, which affects the utilization rate of the interior space and cannot maximize the use of the interior space.

[0053] Therefore, some embodiments of this disclosure provide a seat 100 and a vehicle.

[0054] Some embodiments of the present disclosure are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary. A seat 100 according to some embodiments of the present disclosure is described below with reference to the accompanying drawings. As shown in FIG1, the seat 100 includes a slide rail 10, a seat cushion 20, and a backrest 30.

[0055] The seat cushion 20 can slide relative to the slide rail 10 along the first direction A (the front-to-back direction as shown in Figure 1), and the seat cushion 20 can be flipped around the second direction C (such as clockwise or counterclockwise). The backrest 30 can slide relative to the slide rail 10 along the first direction A, and the backrest 30 can be flipped around the second direction C.

[0056] The seat cushion 20 includes a first surface 21, which is opposite to the usable surface of the seat cushion 20 in the sitting state. In some embodiments of this disclosure, the usable surface of the seat cushion 20 in the sitting state is a third surface 22. The backrest 30 includes a second surface 31, which is opposite to the usable surface of the backrest 30 in the sitting state, and the usable surface of the backrest 30 in the sitting state is a fourth surface 32.

[0057] As shown in Figures 1 and 8, the seat 100 has a first non-sitting state. In the first non-sitting state, the first surface 21 is located on the side of the seat cushion 20 away from the slide rail 10 along the third direction B, and the second surface 31 is located on the side of the backrest 30 away from the slide rail 10 along the third direction B.

[0058] For example, the first direction A is the length direction of the slide rail 10, and the first direction A is orthogonal to the third direction B. In the first plane (such as the first surface 21) perpendicular to the third direction B, the orthographic projection of the seat cushion 20 does not coincide with the orthographic projection of the backrest 30.

[0059] Here, "not overlapping" means that in the first plane, the orthographic projection of the seat cushion 20 is separated from the orthographic projection of the backrest 30, or the orthographic projection of the seat cushion 20 is tangent to the orthographic projection of the backrest 30.

[0060] The seat cushion 20 and the backrest 30 are two independent components. The seat cushion 20 and the backrest 30 are independently matched with the slide rail 10. The seat cushion 20 and the backrest 30 can move independently relative to the slide rail 10 along the first direction A.

[0061] For example, in the first direction A, which is the direction of movement of the slide rail 10, the seat cushion 20 and the backrest 30 can be independently flipped relative to the slide rail 10 in the second direction C, so that the seat cushion 20 and the backrest 30 are flat. When the seat 100 is in the first non-sitting state, the first surface 21 of the seat cushion 20 and the second surface 31 of the backrest 30 are located on the side of the seat cushion 20 and the backrest 30 away from the slide rail 10 along the third direction B, respectively. In this case, the orthographic projections of the first surface 21 and the second surface 31 on the first plane do not coincide, and the seat 100 is in a completely flat state. The movement of the seat cushion 20 and the backrest 30 along the first direction A can avoid interference from the backrest 30 when the seat cushion 20 rotates, and can also avoid interference from the seat cushion 20 when the backrest 30 rotates.

[0062] According to some embodiments of the present disclosure, the seat 100 allows the seat cushion 20 and backrest 30 to move independently relative to the slide rail 10, enabling both the seat cushion 20 and backrest 30 to lie completely flat. This avoids the problem of the backrest 30 not being able to lie completely flat when flipped onto the seat cushion 20, further reducing the space occupied by the seat 100 and freeing up more space. Furthermore, because the seat cushion 20 and backrest 30 move and rotate independently, users can selectively lie flat on one or both of the seat cushion 20 and backrest 30 according to their needs, providing users with more options.

[0063] In some embodiments, as shown in FIG8, in the first non-sitting state, the seat cushion 20 moves along the first direction A toward a direction away from the backrest 30 and flips forward around the second direction C by a first preset angle α1, while the backrest 30 flips around the second direction C toward the seat cushion 20 by a second preset angle β1.

[0064] In some embodiments, when it is necessary to store the backrest 30 of the seat 100, the seat cushion 20 can be moved a certain distance away from the backrest 30, and then the backrest 30 can be flipped towards the seat cushion 20, so that the usable surface of the backrest 30 comes into contact with the usable surface of the seat cushion 20. This increases the utilization of the space above the seat 100 in the first non-sitting state, thus meeting more diverse usage needs.

[0065] For example, in the first non-sitting state, the backrest 30 moves along the first direction A toward the direction away from the seat cushion 20, and rotates forward around the second direction C by a fourth preset angle β2, while the seat cushion 20 rotates around the second direction C toward the direction away from the backrest 30 by a third preset angle α2.

[0066] When it is necessary to store the backrest 30 of the seat 100, the backrest 30 of the seat 100 can be slid first so that the backrest 30 of the seat 100 slides a certain distance away from the seat cushion 20, and then the seat cushion 20 and the backrest 30 can be flipped over.

[0067] For example, when all seats 100 are in the first non-occupant state, they form a flat surface, providing a sleeping space for the user. This facilitates the complete flat folding of the seats 100, maximizing space utilization. α1 and α2 can be any values ​​within the range of 0-180°. β1 and β2 can also be any values ​​within the range of 0-180°.

[0068] In some embodiments, as shown in FIG1, the surface of the seat cushion 20 used in the sitting state, i.e., the surface on which the user sits, is the third surface 22. In the sitting state, the first surface 21 and the third surface 22 are opposite each other along the third direction B. In the sitting state, for the seat cushion 20, the first surface 21 and the third surface 22 are respectively located on both sides of the seat cushion 20 along the third direction B.

[0069] For example, the first surface 21 is formed as a plane. Compared with the use surface of the seat cushion 20, the use surface is in contact with the user's body and needs to conform to ergonomic design to increase the comfort and support of the seat. The planar design of the first surface 21 can ensure that a relatively regular space is provided when the seat cushion 20 is flipped, thereby improving the space utilization rate.

[0070] The surface of the backrest 30 in the sitting position (i.e., the surface of the backrest 30 when the user is sitting) is the fourth surface 32. In the sitting position, the second surface 31 and the fourth surface 32 of the backrest 30 are opposite each other along the first direction A. In the sitting position, the second surface 31 and the fourth surface 32 of the backrest 30 are located on both sides of the backrest 30 along the first direction A.

[0071] For example, the second surface 31 is formed as a plane. In the seated position, the third surface 22 of the seat cushion 20 and the fourth surface 32 of the backrest 30 are adjacent to each other. At this time, the seat 100 is used for normal user seating, providing support for the user. Here, the second surface 31 of the backrest 30 is flat. Compared to the user surface, in order to increase the user's seating comfort and reliability when the user surface comes into contact with the user, it needs to conform to ergonomic design. However, when the backrest 30 is flipped up to increase space utilization, the flat design of the second surface 31 can free up more space.

[0072] In some embodiments, as shown in FIG4, when the seat 100 is in a first non-sitting state, the first surface 21 is located on the side of the seat cushion 20 away from the slide rail 10 along the third direction B, and the second surface 31 is located on the side of the backrest 30 away from the slide rail 10 along the third direction B, with the adjacent ends of the seat cushion 20 and the backrest 30 in contact with each other.

[0073] For example, when further space utilization is required, the seat cushion 20 can be flipped forward 180° and the backrest 30 can be flipped forward 0-180° so that the first surface 21 and the second surface 31 are respectively located on the side away from the slide rail 10, the ends of the seat cushion 20 and the backrest 30 adjacent to each other are stopped along the first direction A, and the full projections of the backrest 30 and the seat cushion 20 on the first plane do not coincide, so that the surfaces of the flipped seat cushion 20 and the backrest 30 can be completely flattened.

[0074] In some embodiments, as shown in FIG6, the seat 100 has a second non-sitting state. When the seat 100 is in the second non-sitting state, the seat cushion 20 and the backrest 30 are stacked along the first direction A, and the use surface (i.e., the fourth surface 32) of the backrest 30 in the sitting state is in contact with the first surface 21. Both the seat cushion 20 and the backrest 30 move along the first direction A to one end of the slide rail 10. At this time, both the seat cushion 20 and the backrest 30 are rotated at a certain angle around the second direction C so that the second surface 31 of the backrest 30 is in contact with the fourth surface 32, thereby realizing the folding and storage of the backrest 30 and the seat cushion 20 and increasing the space utilization rate.

[0075] For example, the seat cushion rotates 90° counterclockwise around the second direction C, and the backrest moves along the first direction A toward the rotated seat cushion, thus achieving the folding of the seat cushion and the backrest.

[0076] It should be noted that "overlapping" means that the seat cushion 20 and the backrest 30 are arranged along the first direction A, with the seat cushion 20 located on the side of the backrest 30 along the first direction A.

[0077] In some embodiments, referring to FIG6, in the second non-sitting state, the seat cushion 20 moves along the first direction A toward a direction away from the backrest 30, and the seat cushion 20 rotates around the second direction C by a fifth preset angle α3. The backrest 30 moves along the first direction A to contact the seat cushion 20, and the angle of rotation of the backrest 30 around the second direction is a sixth preset angle β3. In this state, after the seat cushion 20 rotates around the second direction C by the fifth preset angle α3, the backrest 30 rotates around the second direction C toward the seat cushion 20 by a certain angle β3. α3 and β3 can be any angle within 0-90°, so that the first surface 21 of the seat cushion 20 contacts the use surface of the backrest 30.

[0078] When the seat 100 is in the second non-sitting state, multiple seats 100 can be stacked and stored along the first direction A, increasing the utilization of space in the first direction A.

[0079] For example, as shown in Figures 2 and 3, the seat 100 has a third non-sitting state. When the seat 100 is in the third non-sitting state, the backrest 30 rotates around the second direction C toward the seat cushion 20 at a seventh preset angle β4, and the use surface of the backrest 30 contacts the use surface of the seat cushion 20.

[0080] It is understood that when the seat 100 needs to be in a third non-sitting state, the backrest 30 can be flipped around the second direction C toward the seat cushion 20 so that the usable surfaces of the backrest 30 and the usable surfaces of the seat cushion 20 are opposite and in contact in the third direction B. β4 can take a value between 0 and 90°. In some embodiments of this disclosure, β4 can be 90°.

[0081] When the seat 100 is in the third non-sitting state, the two ends of the seat cushion 20 and the backrest 30 are opposite each other and in contact with each other in the third direction B. The third surface 22 is located on the side of the seat cushion 20 away from the slide rail 10 along the third direction B, the second surface 31 is located on the side of the backrest 30 away from the slide rail 10 along the third direction B, and the fourth surface 32 is in contact with the third surface 22.

[0082] In this configuration, the seat cushion 20 remains in a seated position, and the backrest 30 rotates toward the seat cushion 20 so that the fourth surface 32 contacts the third surface 22. This allows the backrest 30 to be reclined, placing it in a non-seat-dependent position and increasing the utilization of the space above the seat cushion 20. At this time, the projections of the seat cushion 20 and the backrest 30 onto the first plane at least partially overlap, and the backrest 30 is stacked on top of the seat cushion 20 along the third direction B.

[0083] In some embodiments, referring to FIG7, the seat 100 has a fourth non-sitting state. When the seat 100 is in the fourth non-sitting state, the backrest 30 rotates around the second direction C toward the direction away from the seat cushion 20 by a ninth preset angle β5, and the seat cushion 20 rotates around the second direction C toward the direction away from the backrest 30 by an eighth preset angle α5.

[0084] For example, in the fourth non-sitting state, the seat cushion 20 can be rotated at a certain angle α5 away from the backrest 30, where α5 can be any angle between 0 and 180°, and the backrest 30 can be rotated at a certain angle β5 away from the seat cushion 20, where β5 can be any angle between 0 and 90°. Thus, the backrest 30 angle can be adjusted to suit the needs of different users.

[0085] In some embodiments, referring to Figure 7, the angle of the seat cushion 20 can be adjusted as needed to adjust the user's legroom and provide lumbar support, thereby increasing the comfort of riding.

[0086] For example, referring to Figures 1-8, multiple sets of seats 100 can be installed in the vehicle, and these multiple sets of seats 100 are arranged along a first direction A. For example, the multiple sets of seats 100 are spaced apart along the first direction A, and all of them can be flipped and moved relative to the slide rail 10. Here, the first direction A can be understood as the front-rear direction of the seats 100.

[0087] For example, the multiple sets of seats 100 include a first set of seats 101 and a second set of seats 102, with the first set of seats 101 located in front of the second set of seats 102. The multiple sets of seats 100 have a first combined state as shown in FIG. 4. When the multiple sets of seats 100 are in the first combined state, the first set of seats 101 is in a seated state, and the second set of seats 102 is in a first non-seat state.

[0088] In some embodiments, the user can keep the first set of seats 101 in a seated position as needed. In this case, the third surface 22 of the first set of seats 101 is positioned away from the slide rail 10, and the fourth surface 32 is positioned towards the seat cushion 20. Furthermore, the second set of seats 102 is in a first non-seat position, and the first surface 21 and the second surface 31 of the second set of seats 102 are both located on the side away from the slide rail 10.

[0089] Therefore, the first set of seats 101 is in a seated state, and the second set of seats 102 is in a first non-seated state. For example, the seat cushion 20 of the second set of seats 102 is in the non-seated state, and the backrest 30 is in the non-seated state, thereby increasing the space behind the first set of seats 101. Furthermore, since the second set of seats 102 is in the first non-seated state, the side of the second set of seats 102 away from the slide rail 10 is flat, which increases the stability of placing objects and expands the space behind the first set of seats 101.

[0090] In some embodiments, as shown in FIG5, the multiple sets of seats 100 include a first set of seats 101 and a second set of seats 102, with the first set of seats 101 located in front of the second set of seats 102. The multiple sets of seats 100 have a second combined state. When the multiple sets of seats 100 are in the second combined state, the first set of seats 101 is in a first non-sitting state, the second set of seats 102 is in a second non-sitting state, the fourth surface 32 of the backrest 30 of the second set of seats 102 faces the first set of seats 101, and the seat cushion 20 of the second set of seats 102 abuts against the fourth surface 32 of the backrest 30 of the first set of seats 101 and the second set of seats 102.

[0091] In this seating arrangement 100, the seat cushion 20 of the second set of seats 102 is used as a "backrest" for the user to sit on, while the backrest 30 of the first set of seats 101, when fully reclined, is used for sitting, increasing the area for the user to sit on. The seat cushion 20 of the first set of seats 101 can be used to support the user's legs, and by flipping the seat cushion 20 of the second set of seats 102 to adjust the angle of rotation, different sitting postures can be obtained to adjust to a more comfortable sitting posture so that the user's legs can be supported and straightened.

[0092] In some embodiments, as shown in FIG7, the multiple sets of seats 100 include a first set of seats 101 and a second set of seats 102, with the first set of seats 101 located in front of the second set of seats 102; the multiple sets of seats 100 have a third combination state. When the multiple sets of seats 100 are in the third combination state, the first set of seats 101 is in a first non-riding state, and the second set of seats 102 is in a fourth non-riding state.

[0093] For example, when the seat cushion 20 of the second set of seats 102 is in a non-sitting state, the fourth surface 32 of the backrest 30 of the second set of seats 102 faces the first set of seats 101 and the lower end is in contact with the seat cushion 20 of the second set of seats 102.

[0094] In this seating arrangement 100, the seat cushion 20 and backrest 30 of the first set of seats 101 and the seat cushion 20 of the second set of seats 102 are all flipped forward 180° and are in a completely flat state. The backrest 30 of the second set of seats 102 can be adjusted according to the user's needs so that the user can obtain a more comfortable posture when half-lying on the seat 100. The backrest 30 of the second set of seats 102 is used to support the user's back and head.

[0095] In some embodiments, as shown in FIG8, the multiple sets of seats 100 include a first set of seats 101 and a second set of seats 102, with the first set of seats 101 located in front of the second set of seats 102. The multiple sets of seats 100 have a fourth combination state.

[0096] When multiple sets of seats 100 are in the fourth combination state, the first set of seats 101 and the second set of seats 102 are both in the first non-sitting state, and the seat cushion 20 of the second set of seats 102 abuts against the backrest 30 of the first set of seats 101.

[0097] For example, along the first direction A, the seat cushion 20 and backrest 30 of the first set of seats 101 are flipped forward, and the seat cushion 20 and backrest 30 of the second set of seats 102 are flipped forward, so that the first surface 21 and the second surface 31 are located on the side away from the slide rail 10, and the seat cushion 20 and backrest 30 of the first set of seats 101 abut along the first direction A, and the seat cushion 20 and backrest 30 of the second set of seats 102 abut along the first direction A, and the backrest 30 of the first set of seats 101 and the seat cushion 20 of the second set of seats 102 abut, thereby enabling the first set of seats 101 and the second set of seats 102 to be completely flat, eliminating the gap between the first set of seats 101 and the second set of seats 102 and the gap between the backrest 30 and the seat cushion 20, so as to form a regular plane that can provide a sleeping space for the user.

[0098] In some embodiments, referring to FIG12, the slide rail 10 includes a first slide rail and a second slide rail. The first slide rail is movably engaged with the seat cushion 20; the second slide rail is movably engaged with the backrest 30. The first slide rail and the second slide rail are spaced apart along a first direction A.

[0099] The backrest 30 and seat cushion 20 are respectively matched with the second slide rail and the first slide rail, which facilitates the flexibility of the slide rail 10 setting and reduces the cost of the slide rail 10.

[0100] For example, the first slide rail and the second slide rail are connected, and the seat cushion 20 and the backrest 30 can move between the first slide rail and the second slide rail.

[0101] In some embodiments, as shown in FIG10, at least one of the backrest 30 or the seat cushion 20 includes a first frame and a second frame. For example, the backrest 30 or the seat cushion 20 includes a first frame and a second frame, the first frame being movably connected to the slide rail 10, and the second frame being hinged to the first frame. In some embodiments of this disclosure, examples are given where both the backrest 30 and the seat cushion 20 include a first frame and a second frame.

[0102] For example, referring to Figure 10, the backrest 30 includes a first backrest frame 33 and a second backrest frame 34. The first backrest frame 33 is movably connected to the slide rail 10; one end of the second backrest frame 34 is hinged to the first backrest frame 33. The first backrest frame 33 and the second backrest frame are pivotally connected, and the second backrest frame 34 can rotate relative to the first backrest frame 33 within a range of 0-180°, thereby enabling the backrest 30 to switch between a backrest seating state and a backrest non-sitting state.

[0103] In some embodiments, as shown in FIG9, the seat cushion 20 includes a first seat cushion frame 23 as the first frame and a second seat cushion frame 24 as the second frame. The first seat cushion frame 23 is movably connected to the slide rail 10; one end of the second seat cushion frame 24 is hinged to the first seat cushion frame 23. Thus, the pivotal connection between the first seat cushion frame 23 and the second seat cushion frame 24 facilitates the flipping of the seat cushion 20.

[0104] At least one of the backrest 30 or the seat cushion 20 also includes an angle adjuster. The angle adjuster is located between the first frame and the second frame to adjust the rotation angle of the second frame relative to the first frame.

[0105] For example, backrest 30 includes an adjuster. For example, seat cushion 20 includes an adjuster. For example, both backrest 30 and seat cushion 20 include an adjuster.

[0106] In some embodiments of this disclosure, the example is given where both the backrest 30 and the seat cushion 20 include an adjuster. The backrest 30 includes a third adjuster 35, which is disposed between the first backrest frame 33 and the second backrest frame 34 to adjust the rotation angle of the second backrest frame 34 relative to the first backrest frame 33.

[0107] For example, the third angle adjuster 35 includes a rotatable first housing and a second housing, and a rotating component disposed within the two housings. The second housing is disposed within the first housing, and both the first and second housings are rotatable. One of the first and second housings is fixedly connected to the first backrest frame 33, and the other of the first and second housings is fixedly connected to the second backrest frame 34. Here, the third angle adjuster 35 is an electric angle adjuster, and its structure and working principle are similar to related technologies, which will not be described in detail here.

[0108] The seat cushion 20 includes a fourth adjuster 25, which is located between the first seat cushion frame 23 and the second seat cushion frame 24 to adjust the rotation angle of the second seat cushion frame 24 relative to the first seat cushion frame 23. For example, the first seat cushion frame 23 and the second seat cushion frame 24 are rotatable relative to the axis of the fourth adjuster 25, so that the second seat cushion frame 24 can be rotated between the third surface 22 and the first surface 21, thereby achieving a completely flat seat cushion 20.

[0109] In some embodiments, referring to FIG12, the first frame includes two sub-plates spaced apart along a fourth direction D, the two sub-plates being movably engaged with the slide rail 10 along a first direction A, and at least a portion of the second frame being disposed between the two sub-plates. For example, the fourth direction D is perpendicular to both the first direction A and the third direction B.

[0110] For example, the first frame includes two sub-plates, each of which is slidably engaged with a corresponding slide rail 10. The second frame is connected between the two sub-plates and is rotatably connected to them. The first frame facilitates support for the second frame and allows for the sliding of the seat cushion 20 and backrest 30.

[0111] In some embodiments, as shown in FIG9, the first seat cushion frame 23 includes two sub-plates spaced apart in the left-right direction, which are two first sub-seat cushion plates 231, and the second seat cushion frame 24 is disposed between the two first sub-seat cushion plates 231.

[0112] The seat cushion 20 includes a second driver 26 and a second drive shaft 27. The second driver 26 is mounted on the second seat cushion frame 24. The second drive shaft 27 cooperates with the second driver 26, and both ends of the second drive shaft 27 are respectively engaged with two first sub-seat cushion plates 231. The second driver 26 drives the second drive shaft 27 and the fourth adjuster 25 to rotate.

[0113] The two ends of the second drive shaft 27 are respectively connected to the two first sub-seat pads 231. The second driver 26 is located at one end of the second drive shaft 27 and is fixedly connected to one of the first seat pad frame 23 and the second seat pad frame 24.

[0114] In some embodiments of this disclosure, the second driver 26 is fixed to the first seat cushion frame 23. The second driver 26 drives the fourth adjuster to rotate, thereby driving the second drive shaft 27 to rotate, realizing the angle adjustment of the seat cushion 20 with the fourth adjuster 25 as the axis. The second drive shaft 27, which passes through the two first sub-seat cushion plates 231, drives the stable adjustment of the seat cushion 20.

[0115] In some embodiments, at least one of the backrest 30 or the seat cushion 20 further includes a drive and a drive shaft.

[0116] For example, backrest 30 includes a drive and a drive shaft. For example, seat cushion 20 includes a drive and a drive shaft. For example, both backrest 30 and seat cushion 20 include a drive and a drive shaft.

[0117] The actuator is mounted on the second frame, and the drive shaft is connected to both the actuator and the seat adjuster. The actuator drives the seat adjuster to rotate via the drive shaft. In some embodiments of this disclosure, the backrest 30 and the seat cushion 20 are both equipped with an actuator and a drive shaft, which will be used as an example for illustration.

[0118] For example, referring to Figures 10-12, the backrest 30 includes a first driver 36 and a first drive shaft 37. The first driver 36 is mounted on the second backrest frame 34. The first drive shaft 37 is connected to the first driver 36 and the third adjuster 35 respectively. The two ends of the first drive shaft 37 are respectively engaged with two first sub-backrest panels 331. The first driver 36 drives the first drive shaft 37 and the third adjuster 35 to rotate.

[0119] A first drive shaft 37 is connected between two first sub-backrest panels 331, and one end of the first drive shaft 37 is connected to a first driver 36. Under the action of the first driver 36, the first drive shaft 37 can rotate. The cooperation between the first drive shaft 37 and the third angle adjuster 35 enables the angle adjustment of the backrest 30 around the third angle adjuster 35 as its axis. The first drive shaft 37, passing through the two first sub-backrest panels 331, can drive the backrest 30 to adjust stably. The first driver 36 is fixed to either the first backrest frame 33 or the second backrest frame 34. The first backrest frame 33 can be connected to the slide rail 10 via bolts.

[0120] In some embodiments, the first actuator 36 includes a magnetic device, such as a Hall element. For example, the first actuator 36 has a built-in Hall element for measuring the rotor speed of the motor inside the first actuator 36. The first actuator 36 communicates with a control unit inside the vehicle. The control unit uses the Hall signal returned from the first actuator 36 to realize functions such as memory and anti-pinch of the seat 100.

[0121] For example, during the automatic flipping process of the seat 100, the control unit continuously collects the Hall signal returned by the first driver 36. When the seat cushion 20 comes into contact with the user, the returned Hall signal will also be different. When the Hall signal detected by the control unit does not change within 600ms, it sends a Controller Area Network (CAN) signal, and the first driver 36 stops, thus achieving a good anti-pinch effect.

[0122] In some embodiments, the third adjuster 35 includes at least one of a manual adjuster and an electric adjuster. When the third adjuster 35 is a manual adjuster, the angle of the backrest 30 can be adjusted manually, resulting in better adjustment efficiency. When the third adjuster 35 is an electric adjuster, the angle of rotation of the backrest 30 is more precise. The choice can be made based on the vehicle model and the user's needs.

[0123] In some embodiments, the seat 100 further includes a control unit that communicates with the seat cushion 20 and the backrest 30 respectively to control the movement of the seat cushion 20 and the backrest 30.

[0124] For example, the vehicle's control system includes a control unit that communicates independently with the first and second actuators 36 and 26 of the seat cushion 20 and backrest 30, respectively. This control unit allows for individual adjustment of the seat cushion 20 or backrest 30, or simultaneous adjustment of both, improving the switching between the seat 100 and its non-sitting state. The control unit can adjust the seat cushion 20 and backrest 30 at any angle within the range of 0-180°, including both 0° and 180°.

[0125] As shown in FIG13, a vehicle 1000 according to a second aspect embodiment of the present disclosure includes the seat 100 in the above embodiment.

[0126] According to some embodiments of the present disclosure, a vehicle 1000 has multiple rows of seats 100, one in front and one behind. The seat cushions 20 and backrests 30 of each of the front and rear seats 100 can move independently along a first direction A and rotate at any angle around the axis of their respective adjusters. Furthermore, since the seat cushions 20 have a first surface 21 and the backrests 30 have a second surface 31, both of which are flat, the backrests 30 and seats 100 can be completely flattened after the seat cushions 20 and backrests 30 are folded down, which helps to maximize the interior space. The front and rear sets of seats 101 and 102 can be freely folded down to create different storage or activity spaces according to the user's needs.

[0127] It should be noted that the vehicle 1000 in some embodiments of this disclosure is not limited to including multiple rows of seats 100. For example, the vehicle 1000 may also include a single row of seats 100, and this disclosure does not impose any restrictions on this.

[0128] The telescopic assembly 1 of the leg rest 2 according to some embodiments of the present disclosure is described below with reference to Figures 14-19. The telescopic assembly 1 of the leg rest 2 can be installed in a vehicle for supporting the legs. The telescopic assembly 1 can be used in the seat 100 of the above embodiments.

[0129] As shown in Figures 14-19, the telescopic assembly 1 includes: a leg support base plate 12, a leg support outer plate 200, and a drive assembly 300 for extending and retracting the leg support. For example, the leg support base plate 12 mainly serves as a mounting and support unit. The leg support outer plate 200 mainly serves as a support unit, providing power to the legs. The drive assembly 300 mainly serves as a drive unit, providing power to the corresponding components.

[0130] As shown in Figures 16 and 17, the drive assembly 300 includes: a first drive member 310, a first transmission member 320, a second transmission member 330, a third transmission member 340, and a fourth transmission member 350.

[0131] The first driving member 310 can drive the first transmission member 320 to rotate. The first transmission member 320 is in transmission cooperation with the second transmission member 330. The rotation of the first transmission member 320 can drive the second transmission member 330 to move. The third transmission member 340 is fixed on the second transmission member 330. The movement of the second transmission member 330 can drive the third transmission member 340 to rotate. Moreover, the third transmission member 340 is in transmission cooperation with the fourth transmission member 350. The rotation of the third transmission member 340 can drive the fourth transmission member 350 to move.

[0132] In addition, the fourth transmission member 350 is adapted to be connected to the leg support 2. For example, the first drive member 310 is disposed on the leg support base plate 12, and the fourth transmission member 350 is connected to the leg support outer plate 200.

[0133] For example, the first driving component 310 mainly functions as a drive, providing power for the movement of the corresponding parts. The first transmission component 320, the second transmission component 330, the third transmission component 340, and the fourth transmission component 350 all function as transmission components. Mounting the first driving component 310 on the leg support base plate 12 secures it, making its installation more robust and stable, and allowing it to function more effectively.

[0134] Furthermore, the fourth transmission component 350 is connected to the outer plate 200 of the leg support, which can fix the fourth transmission component 350, making the fourth transmission component 350 more secure and stable, and allowing the fourth transmission component 350 to work better.

[0135] For example, the first driving member 310 and the first transmission member 320 are driven together, so that the first driving member 310 can transmit power to the first transmission member 320, and the first transmission member 320 can rotate under the drive of the first driving member 310.

[0136] The first transmission component 320 and the second transmission component 330 are in a transmission cooperation, so that the first transmission component 320 will transmit power to the second transmission component 330, and the second transmission component 330 can move under the transmission of the first transmission component 320.

[0137] The third transmission member 340 is rotatably mounted on the second transmission member 330, meaning that the third transmission member 340 can rotate relative to the second transmission member 330.

[0138] Because the third transmission component 340 and the fourth transmission component 350 are in a transmission cooperation, the power on the third transmission component 340 can be transmitted to the fourth transmission component 350, so that the fourth transmission component 350 can move under the transmission of the third transmission component 340. Furthermore, because the fourth transmission component 350 is connected to the leg support outer plate 200, the leg support outer plate 200 can move.

[0139] Thus, the first driving member 310 can sequentially drive the leg support outer plate 200 to move relative to the leg support base plate 12 through the transmission of the first transmission member 320, the second transmission member 330, the third transmission member 340 and the fourth transmission member 350, thereby increasing the extension length of the leg support outer plate 200 relative to the leg support base plate 12.

[0140] Understandably, by setting the first drive member 310 on the leg support base plate 12 and setting the fourth transmission member 350 on the leg support outer plate 200, the first drive member 310 can increase the telescopic length of the leg support outer plate 200 relative to the leg support base plate 12 through the sequential transmission of the first transmission member 320, the second transmission member 330, the third transmission member 340 and the fourth transmission member 350. This not only provides support for the thigh area but also for the lower leg area, thereby improving riding comfort and saving space.

[0141] In some embodiments, as shown in Figures 17-19, the movement direction of the second transmission member 330 is the same as that of the fourth transmission member 350. Since the first driving member 310 is disposed on the leg support base plate 12, and the fourth transmission member 350 is connected to the leg support outer plate 200, in order to enable the leg support outer plate 200 to move further relative to the leg support base plate 12, the transmission directions of the first transmission member 320, the second transmission member 330, and the third transmission member 340 are consistent with the direction in which the leg support outer plate 200 extends relative to the leg support base plate 12.

[0142] Therefore, the movement direction of the second transmission member 330 is the same as that of the fourth transmission member 350. This arrangement is more reasonable and can increase the extension length of the leg support outer plate 200 relative to the leg support base plate 12, thereby enabling the leg support outer plate 200 to support the lower leg.

[0143] For example, as shown in Figures 17-19, the first transmission component 320 is a lead screw, and the second transmission component 330 includes a threaded tube 334. The threaded tube 334 is sleeved on the lead screw so that it moves when the lead screw rotates.

[0144] In other words, the first transmission component 320 and the second transmission component 330 can be a lead screw and a threaded tube 334, respectively. The threaded tube 334 is fitted onto the lead screw, so when the first driving component 310 drives the lead screw to rotate, the lead screw can move the threaded tube 334 along the axis of the lead screw, thereby enabling the movement of the threaded tube 334. This facilitates the transmission and engagement between the threaded tube 334 and the leg support outer plate 200, as well as their unidirectional movement. Furthermore, the engagement between the lead screw and the threaded tube 334 offers higher precision, allowing for more accurate control of the position of the leg support outer plate 200.

[0145] In some embodiments, as shown in FIG17, the second transmission member 330 further includes: a first connecting plate 332 and a second connecting plate 333, the first connecting plate 332 being connected to the second connecting plate 333, a threaded tube 334 being connected to the first connecting plate 332, and a third transmission member 340 being fixed to the second connecting plate 333.

[0146] For example, both the first connecting plate 332 and the second connecting plate 333 can serve as connections and installations. Connecting the first connecting plate 332 and the second connecting plate 333 makes the connection between them more stable, thereby making the structure of the second transmission component 330 more stable and allowing the second transmission component 330 to function better.

[0147] The threaded tube 334 is connected to the first connecting plate 332, which fixes the first connecting plate 332 and makes the connection between the threaded tube 334 and the first connecting plate 332 more stable. As the threaded tube 334 moves along the axis of the screw, the first connecting plate 332 can move with the threaded tube 334. Since the second connecting plate 333 is connected to the first connecting plate 332, the first connecting plate 332 will also drive the second connecting plate 333 to move together.

[0148] The third transmission member 340 is rotatably mounted on the second connecting plate 333, meaning that the third transmission member 340 can rotate relative to the second connecting plate 333. Since the third transmission member 340 is mounted on the second connecting plate 333, the third transmission member 340 will also move along with the first connecting plate 332 as the second connecting plate 333 moves.

[0149] For example, the third transmission component 340 includes a fixed pin and a gear, the gear being rotatably connected to the fixed pin, and the fixed pin being fixedly connected to the second connecting plate 333. For example, the third transmission component 340 and the second connecting plate 333 are hingedly connected by a gear and a fixed pin, so that the third transmission component 340 can rotate more effectively relative to the second connecting plate 333, thereby enabling the third transmission component 340 to transmit kinetic energy more effectively.

[0150] Furthermore, as shown in Figures 17-19, the third transmission component 340 is a gear, and the fourth transmission component 350 is a first rack, with the gear meshing with the first rack. That is, the third transmission component 340 and the fourth transmission component 350 can be a gear and a first rack, respectively. Thus, when the gear rotates, it can drive the first rack to move through meshing with it, thereby moving the leg support outer plate 200.

[0151] Furthermore, the meshing of the gear with the first rack has advantages such as stable transmission, high transmission efficiency, and long service life, which makes the transmission cooperation between the third transmission component 340 and the fourth transmission component 350 more stable and reliable.

[0152] In some embodiments, as shown in Figures 17-19, the drive assembly 300 further includes a second drive member that engages with a gear drive.

[0153] For example, the drive assembly 300 further includes a second rack 11, which is fixed to the leg support 2. For example, the second rack 11 is provided on the leg support base plate 12, and a gear is also meshed with the second rack 11.

[0154] Understandably, the second drive component primarily functions as a driver. By engaging a gear drive, the second drive component can rotate the gear, which in turn moves the rack, ultimately causing the leg support outer plate 200 to move. The second drive component is a motor.

[0155] For example, a second rack 11 is provided on the leg support base plate 12, which can serve as a drive mechanism. By setting the second rack 11 on the leg support base plate 12, the second rack 11 can be fixed, making its installation more secure and stable, and allowing it to perform its function better.

[0156] For example, the second rack 11 meshes with the gear. When the second connecting plate 333 drives the gear to move, since the gear meshes with the second rack 11 and the second rack 11 is fixed relative to the leg support base plate 12, the rack will rotate under the combined drive of the second connecting plate 333 and the second rack 11. Since the gear meshes with the rack, the rotation of the gear will drive the rack to move, which in turn can drive the leg support outer plate 200 to move.

[0157] It should be noted that during the movement of the leg support outer plate 200 relative to the leg support base plate 12, the second connecting plate 333 will drive the gear to move, and the gear will also rotate during the movement. Thus, the movement stroke of the rack is equal to the movement stroke of the lead screw plus the circumference traveled by the gear's rotation. Therefore, the movement stroke of the rack is approximately twice the stroke of the lead screw, which can extend the movement distance of the leg support outer plate 200 relative to the leg support base plate 12 when the length of the lead screw is limited.

[0158] In some embodiments, as shown in Figures 18-19, the leg support telescopic assembly 1 further includes: a first sliding member 40 and a second sliding member 50, the first sliding member 40 being connected to the leg support base plate 12, and the second sliding member 50 being connected to the leg support outer plate 200, with the first sliding member 40 and the second sliding member 50 in sliding engagement.

[0159] For example, both the first sliding member 40 and the second sliding member 50 can serve as supports and guides. Connecting the first sliding member 40 to the leg support base plate 12 can fix the first sliding member 40, making the connection between the first sliding member 40 and the leg support base plate 12 more stable, so that the first sliding member 40 can better serve as a support and guide.

[0160] Similarly, the second sliding member 50 is connected to the leg support outer plate 200, which can fix the second sliding member 50 and make the connection between the second sliding member 50 and the leg support outer plate 200 more stable, so that the second sliding member 50 can better play the role of support and guidance.

[0161] For example, the first sliding member 40 and the second sliding member 50 are slidably engaged. Thus, while the leg support outer plate 200 moves relative to the leg support base plate 12, the second sliding member 50 also moves relative to the first sliding member 40. This makes the movement of the leg support outer plate 200 more stable and accurate, thereby improving the stability of the leg support telescopic assembly 1. Furthermore, the second sliding member 50 also enhances the structural strength of the leg support outer plate 200.

[0162] For example, both the first sliding member 40 and the second sliding member 50 are metal structural components. That is, both the first sliding member 40 and the second sliding member 50 can be metal structural components. It is understandable that metal structural components have greater structural strength; therefore, this arrangement is more reasonable, allowing the first sliding member 40 and the second sliding member 50 to have greater structural strength. This, in turn, can improve the structural strength of the leg support base plate 12 and the leg support outer plate 200 to a certain extent, and also makes the first sliding member 40 and the second sliding member 50 less prone to damage during use.

[0163] According to some embodiments of the present disclosure, as shown in Figures 14 and 18, the leg support 2 includes: a mounting bracket 201, and a telescopic assembly 1 of the leg support described in any of the above embodiments, the telescopic assembly 1 being disposed on the mounting bracket 201.

[0164] Mounting bracket 201 primarily serves an installation function, providing mounting positions for other corresponding components. Understandably, mounting the telescopic assembly on mounting bracket 201 secures it, making it more robust and stable, thus allowing for better operation.

[0165] In some embodiments, as shown in Figures 14-16, the leg support 2 further includes a lifting assembly 202, which is connected between the mounting bracket 201 and the leg support base plate 12.

[0166] The lifting assembly 202 primarily serves a lifting function. Connecting the lifting assembly 202 between the mounting bracket 201 and the leg support base plate 12 can fix part of the structure of the lifting assembly 202, making the installation of the lifting assembly 202 more reliable and stable, thereby allowing the lifting assembly 202 to work better.

[0167] Understandably, the height of the leg support base plate 12 can be adjusted using the lifting component 202, thereby improving the flexibility of the leg support 2 and enhancing the user experience.

[0168] In some embodiments, as shown in Figures 14 and 16, the lifting assembly 202 includes a lifting frame 2021 and a third drive member 2022. The lifting frame 2021 is connected between the mounting bracket 201 and the leg support base plate 12. The third drive member 2022 is disposed on the mounting bracket 201 and drives the lifting frame 2021.

[0169] The third drive component 2022 primarily functions as a drive unit, providing power to the corresponding parts. The lifting frame 2021 primarily functions as a transmission unit, enabling the corresponding parts to be raised and lowered.

[0170] Understandably, mounting the third drive component 2022 on the mounting bracket 201 can fix the third drive component 2022, making the mounting of the third drive component 2022 more secure and stable, and allowing the third drive component 2022 to work better.

[0171] The lifting frame 2021 is connected between the mounting bracket 201 and the leg support base plate 12, and the third driving component 2022 drives the lifting frame 2021. In this way, the driving component can provide power to the lifting frame 2021, thereby driving the lifting frame 2021 to work. The movement of the lifting frame 2021 will drive the leg support base plate 12 to rise or fall.

[0172] As shown in Figure 13, the seat 100 according to some embodiments of the present disclosure includes a seat body and a leg rest 2 as described in any of the above embodiments. The leg rest 2 is connected to the seat body, that is, the mounting bracket 201 is connected to the seat body.

[0173] The main body of the seat serves to provide support and enhance comfort. Connecting the mounting bracket 201 to the seat body secures the bracket 201, making its installation more robust and stable, and allowing it to better fulfill its mounting function.

[0174] Some embodiments of this disclosure provide a vehicle, as shown in Figures 13 and 20. The vehicle 1000 includes a seat 100, which includes a slide rail 10, a seat cushion 20, and a backrest 30. The slide rail 10 is mounted on the floor inside the vehicle, and the seat cushion 20 and the backrest 30 are independently arranged.

[0175] The seat cushion 20 includes a seat cushion body 71, a first rotating shaft 73, a first driving device 74, and a first connecting frame 72. The seat cushion body 71 and the first connecting frame 72 are rotatably connected through the first rotating shaft 73. The first driving device 74 is used to drive the first rotating shaft 73 to rotate relative to the first connecting frame 72.

[0176] The backrest 30 includes a backrest body 81, a second rotating shaft, a second driving device 83, and a second connecting frame 82. The backrest body 81 and the second connecting frame 82 are rotatably connected by the second rotating shaft. The second driving device 83 is used to drive the second rotating shaft to rotate relative to the second connecting frame 82.

[0177] For example, the first connecting frame 72 and the second connecting frame 82 are slidably connected to the slide rail 10.

[0178] Since the seat back 30 and seat cushion 20 are independently configured, they can be folded separately. For example, when the seat cushion 20 needs to be folded, the first drive device 74 electrically drives the first rotating shaft 73 to rotate relative to the first connecting frame 72, so that the first rotating shaft 73 drives the seat cushion body 71 to rotate, thereby realizing the flipping of the seat cushion 20. Thus, the seat cushion 20 can meet the layout requirements of different vehicle usage scenarios.

[0179] When the backrest 30 needs to be folded, the second rotating shaft is electrically driven by the second driving device 83 to rotate relative to the second connecting frame 82, so that the second rotating shaft drives the backrest body 81 to rotate, thereby realizing the flipping of the backrest 30, so that the backrest 30 can meet the layout requirements of different car use scenarios.

[0180] Moreover, the first connecting frame 72 of the seat cushion 20 and the second connecting frame 82 of the backrest 30 are both slidably connected to the slide rail 10. Since the seat cushion 20 and the backrest 30 are set independently, the seat cushion 20 and the backrest 30 can move independently on the slide rail 10, so that the seat cushion 20 can meet the layout needs of more car use scenarios.

[0181] Figure 20 shows the seating layout in a vehicle under one usage scenario. The vehicle has three rows of seats: front seats, middle seats, and rear seats. For example, this vehicle could be a Sport Utility Vehicle (SUV) or a Multi-Purpose Vehicle (MPV). It should be noted that Figure 20 only shows the middle and rear seats.

[0182] In Figure 20, the seat cushion 20 of the middle row seat is flipped forward 180°, the backrest 30 of the middle row seat is folded forward and flush with the seat cushion 20, the seat cushion 20 of the rear seat is flipped forward at a certain angle and moves forward along the slide rail 10, the backrest 30 of the rear seat moves forward and is brought together with the seat cushion 20. This layout can maximize the release of trunk storage space.

[0183] Figure 21 shows the layout of the vehicle seats in Figure 20 in another usage scenario. The seat cushion 20 of the rear seats is flipped forward 180°, the backrest 30 of the middle row seats is folded forward and flush with the seat cushion 20, and the seat cushion 20 of the rear seats is flipped forward 180°, and the backrest 30 of the rear seats is folded forward and flush with the seat cushion 20. This layout can create a completely flat surface and create a large bed mode.

[0184] It should be noted that Figures 20 and 21 only show the flip angles of the seats in the vehicle under two usage scenarios. The flip angles of the seat cushion 20 and backrest 30 can be adjusted according to the needs of the actual usage scenario. The number of seats can also be set according to the vehicle space and needs. For example, there can be two rows of seats, namely front seats and rear seats.

[0185] In addition, control buttons can be provided on the side of the seat. The control buttons control the first drive device 74 and the second drive device 83 to work, so that the first rotating shaft 73 drives the seat cushion body 71 to flip and the second rotating shaft drives the backrest body 81 to flip.

[0186] In some embodiments of the vehicle disclosed herein, the seat back 30 and seat cushion 20 are independently arranged, enabling the seat back 30 and seat cushion 20 to be flipped independently. The first drive device 74 can electrically drive the first rotating shaft 73 to rotate relative to the first connecting frame 72, so that the first rotating shaft 73 drives the seat cushion body 71 to rotate around the first rotating shaft 73, thereby realizing the electric flipping of the seat. The second drive device 83 can electrically drive the second rotating shaft to rotate relative to the second connecting frame 82, so that the second rotating shaft drives the backrest body 81 to rotate around the second rotating shaft, thereby realizing the electric flipping of the backrest 30, saving manpower.

[0187] Moreover, since the backrest 30 and seat cushion 20 are set independently, the flip angle and position of the backrest 30 and seat cushion 20 do not interfere with each other. The backrest 30 and seat cushion 20 can slide independently on the slide rail 10 to adjust the position of the backrest 30 and seat cushion 20 respectively, making it suitable for more car use scenarios.

[0188] In some embodiments, as shown in Figures 22 to 25, the seat cushion 20 further includes a first adjuster 75. The first adjuster 75 is fixed to the seat cushion body 71, and a first rotating shaft 73 is kinetically connected to the first adjuster 75.

[0189] The backrest 30 also includes a second angle adjuster, which is fixed to the backrest body 81, and the second rotating shaft is connected to the second angle adjuster in a transmission manner.

[0190] The first angle adjuster 75 and the second angle adjuster have the same structure and function; therefore, the structure and function of the first angle adjuster 75 will be described below as an example. The first angle adjuster 75 enables continuous angle adjustment of the seat cushion 20 and has a self-locking function, allowing the seat cushion 20 to stop at any angle during the flipping process. Furthermore, the first angle adjuster 75 has high strength, which improves the structural strength of the seat cushion 20, and in the stopped state, helps to meet the strength and regulatory requirements of actual vehicle road conditions.

[0191] The first angle adjuster 75 includes a housing 751 and a first rotating frame 752. The first rotating frame 752 is rotatably mounted inside the housing 751, and the housing 751 is fixed on the first connecting frame 72. The first rotating frame 752 and the first rotating shaft 73 are connected in a driving manner. The structure of the first rotating frame 752 of the first angle adjuster 75 is the same as that in related technologies, and will not be described again here.

[0192] In some embodiments, only one of the first angle adjuster 75 or the second angle adjuster may be provided.

[0193] In some embodiments, the housing 751 of the first angle adjuster 75 is welded and fixed to the first connecting bracket 72.

[0194] In some embodiments, the first rotating frame 752 is welded and fixed to the seat cushion body 71.

[0195] In some embodiments, a first rotating shaft 73 passes through a first angle adjuster 75, and a plurality of first spline grooves distributed along the circumferential direction are provided on the central hole wall of the first angle adjuster 75. The first rotating shaft 73 is a spline shaft, and the key teeth on the first rotating shaft 73 are inserted into the first spline grooves.

[0196] For example, the first spline groove is provided on the first rotating frame 752, so that the first rotating shaft 73 and the first rotating frame 752 are stopped in the circumferential direction, so that the first rotating frame 752 can rotate synchronously with the first rotating shaft 73. The structure is simple and easy to install.

[0197] The second rotating shaft passes through the second angle adjuster. The central hole wall of the second angle adjuster is provided with multiple second spline grooves distributed along the circumferential direction. The second rotating shaft is a spline shaft, and the key teeth on the second rotating shaft are inserted into the second spline grooves.

[0198] For example, the second spline groove is set on the second rotating frame, so that the second rotating shaft and the second rotating frame are stopped in the circumferential direction, so that the second rotating frame can rotate synchronously with the second rotating shaft. The structure is simple and easy to install.

[0199] In some embodiments, the first adjuster 75 or the second adjuster in the seat may be installed in the manner described above.

[0200] In some embodiments, the seat cushion 20 includes two first adjusters 75, which are arranged axially spaced along a first rotation shaft 73. The first rotation shaft 73 is kinetically connected to the two spaced-apart first adjusters 75. Compared to having only one first adjuster 75, the overall structural strength and stability of the seat cushion 20 are higher.

[0201] In some embodiments, the backrest 30 includes two second adjusters, which are arranged axially spaced along a second rotation axis. The second rotation axis is tractively connected to the two spaced second adjusters. Compared to having only one second adjuster, the overall structural strength and stability of the backrest 30 are higher.

[0202] In some embodiments, the seat cushion 20 includes two first adjusters 75, or the backrest 30 includes two second adjusters.

[0203] In some embodiments, as shown in FIG22, the first connecting frame 72 includes two first connecting plates 721 spaced apart along the width direction of the seat (X direction in FIG22). The first connecting plates 721 are slidably connected to the slide rail 10, and the first rotating shaft 73 is rotatably mounted on the two first connecting plates 721. The two first connecting plates 721 are machined separately, so that the structures machined on the two first connecting plates 721 that are slidably connected to the slide rail 10 do not affect each other, thereby reducing the machining difficulty.

[0204] The second connecting frame 82 includes second connecting plates spaced apart along the width of the seat. The second connecting plates are slidably connected to the slide rail 10, and a second rotating shaft is rotatably mounted on the two second connecting plates. The two second connecting plates are machined separately so that the structures machined on the two second connecting plates that are slidably connected to the slide rail 10 do not affect each other, thereby reducing the machining accuracy.

[0205] In some embodiments, the first connecting frame 72 or the second connecting frame 82 in the seat may adopt the structure described above.

[0206] In some embodiments, as shown in Figures 20 and 21, the seat includes two slide rails 10, which are spaced apart along the width of the seat and correspond one-to-one with the two connecting plates.

[0207] The first connecting plate 721 is provided with a first connecting hole that runs through the height direction of the vehicle. A sliding member is slidably installed in the slide rail 10. The sliding member is provided with a threaded hole. A bolt passes through the first connecting hole and is threaded into the corresponding threaded hole to achieve a fixed connection between the first connecting plate 721 and the sliding member, thereby making the first connecting plate 721 slidably connected to the slide rail 10.

[0208] The second connecting plate is provided with a second connecting hole that runs through the height direction of the vehicle. Bolts pass through the second connecting hole and are threaded into the corresponding threaded hole to achieve a fixed connection between the second connecting plate and the sliding member, thereby enabling the second connecting plate to slide with the slide rail 10.

[0209] In some embodiments, as shown in FIG22, two first connecting plates 721 are located at opposite ends of a first rotating shaft 73, and a first driving device 74 is located in the axial direction of the first rotating shaft 73 between the two first connecting plates 721, so that the space between the two first connecting plates 721 can be used as the installation space for the first driving device 74, thereby improving space utilization.

[0210] Two second connecting plates are located at opposite ends of the second rotating shaft. The second drive device 83 is located between the two second connecting plates in the axial direction of the second rotating shaft, so that the two second connecting plates are set independently. The space between the two second connecting plates can be used as the installation space for the second drive device 83, thereby improving space utilization.

[0211] In some embodiments, as shown in FIG22, the first driving device 74 is disposed between two first connecting plates 721, or the second driving device 83 is disposed between two second connecting plates.

[0212] In some embodiments, the assembly method between the first adjuster 75, the first connecting plate 721 and the seat cushion body 71 is the same as the assembly method between the second adjuster, the second connecting plate and the backrest body 81. Here, the assembly method is described using the first adjuster 75, the first connecting plate 721 and the seat cushion body 71 as an example.

[0213] As shown in Figures 24 and 25, the axial end of the first rotating frame 752 protrudes from the housing 751, and correspondingly, a through first mounting hole is provided on the first connecting plate 721. The first rotating frames 752 of the two first angle adjusters 75 are respectively connected to the two ends of the first rotating shaft 73. The part of the first rotating frame 752 of one first angle adjuster 75 protruding from the housing 751 is inserted into the first mounting hole of one of the first connecting plates 721, and the housing 751 of the first angle adjuster 75 is fixed to the periphery of the corresponding first mounting hole. The part of the first rotating frame 752 of the other first angle adjuster 75 protruding from the housing 751 is inserted into the first mounting hole of the other first connecting plate 721, and the housing 751 of the first angle adjuster 75 is fixed to the periphery of the corresponding first mounting hole.

[0214] In some embodiments, as shown in FIG24, the first connecting plate 721 includes a first mounting section 722, a first connecting section 723 and a first support section 724. The first connecting section 723 connects the first mounting section 722 and the first support section 724. The first mounting section 722 is slidably connected to the slide rail 10. The first rotating shaft 73 is rotatably mounted on the first support section 724.

[0215] Compared to the first connecting plate 721, which is a single plate, the bent first connecting plate 721, which is composed of the first mounting section 722, the first connecting section 723, and the first support section 724, has a relatively small plate area and a lighter weight.

[0216] The second connecting plate includes a second mounting section, a second connecting section, and a second support section. The second connecting section connects the second mounting section and the second support section. The second mounting section is slidably connected to the slide rail 10. The second rotating shaft is rotatably mounted on the second support section.

[0217] Compared to the second connecting plate, which is a single plate, the bent second connecting plate, which consists of the second mounting section, the second connecting section, and the second support section, has a relatively smaller surface area and lighter weight.

[0218] In some embodiments, the first connecting plate 721 or the second connecting plate in the seat may adopt the structure described above.

[0219] In some embodiments, as shown in FIG24, the output end of the first drive device 74 is coaxial with the first rotating shaft 73. No additional reversing mechanism is required between the output end of the first drive device 74 and the first rotating shaft 73, reducing the number of parts and thus reducing the weight and space occupied by the seat cushion 20.

[0220] The output end of the second drive device 83 is coaxial with the second rotating shaft. No additional reversing mechanism is required between the output end of the second drive device 83 and the second rotating shaft, reducing the number of parts and thus reducing the weight and space occupied by the backrest 30.

[0221] In some embodiments, the output end of the first drive device 74 is coaxial with the first rotating shaft 73. In some embodiments, the output end of the second drive device 83 is coaxial with the second rotating shaft.

[0222] In some embodiments, as shown in FIG24, the first driving device 74 includes a first motor 741 and a first reduction mechanism 742. The first motor 741 is drivenly connected to the first reduction mechanism 742, and the first reduction mechanism 742 is drivenly connected to the first rotating shaft 73. The first rotating shaft 73 is coaxially arranged with the output end of the first reduction mechanism 742.

[0223] The second drive device 83 includes a second motor and a second reduction mechanism. The second motor is connected to the second reduction mechanism in a transmission connection, and the second reduction mechanism is connected to the second rotating shaft in a transmission connection. The second rotating shaft is coaxially arranged with the output end of the second reduction mechanism.

[0224] In some embodiments, the first drive device 74 or the second drive device 83 adopts the above-described structure.

[0225] In some embodiments, the first rotating shaft 73 is connected to the output end of the first reduction mechanism 742 via a spline, and the second rotating shaft is connected to the output end of the second reduction mechanism via a spline.

[0226] In some embodiments, the first drive device 74 and the second drive device 83 have the same structure. Here, the structure of the first drive device 74 is described as an example. As shown in FIG24, the first reduction mechanism 742 is a worm gear mechanism, including a worm and a worm wheel meshing with the worm. The motor shaft of the first motor 741 is connected to the worm gear. When the first motor 741 rotates, the shaft of the first motor 741 drives the worm to rotate, and the worm wheel meshing with the worm rotates. The first rotating shaft 73 is connected to the rotating shaft of the worm wheel through a spline.

[0227] The worm gear mechanism can switch the input and output directions. Since the space in the front-rear direction of the vehicle is greater than the space in the width direction, by designing the motor shaft of the first motor 741 to be perpendicular to the first rotating shaft 73, the first drive device 74 can be arranged along the front-rear direction of the vehicle, reducing the space occupied in the width direction of the vehicle, so as to adapt to the spatial layout inside the vehicle.

[0228] In some embodiments, as shown in FIG22, the seat cushion 20 frame includes a main frame 711 and two seat cushion side plates 712. The two seat cushion side plates 712 are respectively connected to the two sides of the main frame 711 in the width direction and protrude from the top surface of the main frame 711. The two ends of the first rotating shaft 73 are respectively drivenly connected to the two seat cushion side plates 712.

[0229] Since the seat cushion side plate 712 protrudes from the top surface of the main frame 711, when the first rotating shaft 73 is installed on the seat cushion side plate 712, the main frame 711 can avoid obstructing the installation view, making it easier to install the first rotating shaft 73.

[0230] In some embodiments, as shown in FIG24, the seat cushion side plate 712 includes a vertical plate 713 and a support plate 714. The vertical plate 713 extends vertically along the length direction of the main frame 711, and the bottom side of the vertical plate 713 is bent toward the side closer to the main frame 711 to form the support plate 714. The support plate 714 supports the first drive device 74 and improves the stability of the first drive device 74.

[0231] In some embodiments, the housing of the first drive unit 74 is bolted to the seat cushion side plate 712.

[0232] In some embodiments, the first adjuster 75 or the second adjuster can be removed. Taking the removal of the first adjuster 75 as an example, the first rotating shaft 73 can be fixed to the seat body 71.

[0233] In some embodiments, the first rotating shaft 73 and the rotating shaft of the first rotating frame 752 can be connected by a coupling, and the second rotating shaft and the rotating shaft of the second rotating frame can be connected by a coupling.

[0234] In some embodiments, either the first angle adjuster 75 or the second angle adjuster may be provided only once.

[0235] In some embodiments, the output end of the first drive device 74 may be parallel to the axis of the first rotating shaft 73, and the output end of the second drive device 83 may be parallel to the axis of the second rotating shaft. Taking the first drive device 74 as an example, the output end of the first drive device 74 may be an external gear, and a driven gear that meshes with the external gear is provided on the first rotating shaft 73, with the shaft of the external gear being parallel to the first rotating shaft 73.

[0236] In some embodiments, the first drive device 74 or the second drive device 83 may consist only of the first motor 741. Taking the first drive device 74 as an example, the motor shaft of the first motor 741 and the first rotating shaft 73 can be connected by a coupling.

[0237] Some embodiments of this disclosure also provide a seat, the structure of which is the same as that of the seat in the vehicle in any of the above embodiments, and will not be described again here.

[0238] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. For example, the vehicle 1000 in some embodiments of this disclosure includes at least one of the seat 100, leg rest 1, telescopic assembly 2, and drive assembly 300 as described in the above embodiments.

[0239] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure 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. Therefore, they should not be construed as limitations on this disclosure.

[0240] In the description of this disclosure, "first feature" and "second feature" may include one or more of the features. In the description of this disclosure, "a plurality of" means two or more. In the description of this disclosure, "above" or "below" the second feature may include direct contact between the first and second features, or contact between the first and second features not in direct contact but through another feature between them. In the description of this disclosure, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature.

[0241] In the disclosed description, references to terms such as "any embodiment," "some embodiments," or "example" indicate that a feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this disclosure, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0242] Although embodiments of this disclosure have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. A seat (100), comprising: Slide rail (10); A seat cushion (20) is slidable relative to the slide rail (10) in a first direction and is rotatable about a second direction; the seat cushion (20) includes a first surface (21) opposite to the use surface of the seat cushion (20) in the sitting state; as well as The backrest (30) is slidable relative to the slide rail (10) along the first direction and is rotatable about the second direction; the backrest (30) includes a second surface (31) opposite to the use surface of the backrest (30) in the sitting state; The seat (100) has a first non-sitting state, in which the first surface (21) is located on the side of the seat cushion (20) away from the slide rail (10) along the third direction, and the second surface (31) is located on the side of the backrest (30) away from the slide rail (10) along the third direction. Wherein, the first direction is the length direction of the slide rail (10); the first direction and the third direction are orthogonal; in the first plane perpendicular to the third direction, the orthographic projection of the seat cushion (20) does not coincide with the orthographic projection of the backrest (30).

2. The seat (100) according to claim 1, wherein, In the first non-sitting state, the seat cushion (20) moves away from the backrest (30) along the first direction and flips forward by a first preset angle α1 around the second direction, while the backrest (30) flips towards the seat cushion (20) around the second direction by a second preset angle β1.

3. The seat (100) according to claim 1 or 2, wherein, In the first non-sitting state, the backrest (30) moves in the first direction away from the seat cushion (20) and flips forward by a fourth preset angle β2 around the second direction, and the seat cushion (20) flips by a third preset angle α2 around the second direction away from the backrest (30).

4. The seat (100) according to any one of claims 1-3, wherein, The first surface (21) is formed as a plane.

5. The seat (100) according to any one of claims 1-4, wherein, The second surface (31) is formed as a plane.

6. The seat (100) according to any one of claims 1-5, wherein, When the seat (100) is in a first non-sitting state, the adjacent ends of the seat cushion (20) and the backrest (30) are in contact with each other.

7. The seat (100) according to any one of claims 1-6, wherein, The seat (100) has a second non-sitting state. When the seat (100) is in the second non-sitting state, the seat cushion (20) and the backrest (30) are stacked along the first direction, and the backrest (30) is in contact with the first surface (21) on the use surface in the sitting state.

8. The seat (100) according to claim 7, wherein, In the second non-sitting state, the seat cushion (20) moves away from the backrest (30) along the first direction, and the seat cushion (20) rotates around the second direction by a fifth preset angle α3. The backrest (30) moves along the first direction and contacts the seat cushion (20). The backrest (30) rotates around the second direction by a sixth preset angle β3.

9. The seat (100) according to any one of claims 1-8, wherein, The seat (100) has a third non-sitting state. When the seat (100) is in the third non-sitting state, the backrest (30) rotates around the second direction toward the seat cushion (20) by a seventh preset angle β4, and the working surface of the backrest (30) contacts the working surface of the seat cushion (20).

10. The seat (100) according to any one of claims 1-9, wherein, The seat (100) has a fourth non-sitting state. When the seat (100) is in the fourth non-sitting state, the backrest (30) rotates a ninth preset angle β5 around the second direction toward the direction away from the seat cushion (20), and the seat cushion (20) rotates an eighth preset angle α5 around the second direction toward the direction away from the backrest (30).

11. The seat (100) according to any one of claims 1-10, wherein, The slide rail (10) includes: A first slide rail, which movably engages with the seat cushion (20); and The second slide rail is movably engaged with the backrest (30), and the first slide rail and the second slide rail are spaced apart along the first direction.

12. The seat (100) according to any one of claims 1-11, wherein, At least one of the backrest (30) or the seat cushion (20) includes: A first frame, movably connected to the slide rail (10); and The second frame is hinged to the first frame.

13. The seat (100) according to claim 12, wherein, The first frame includes two sub-plates spaced apart along a fourth direction, the two sub-plates being movably engaged with the slide rail (10) along the first direction, and at least a portion of the second frame being disposed between the two sub-plates; wherein the fourth direction is perpendicular to both the first direction and the third direction.

14. The seat (100) according to claim 12 or 13, wherein, At least one of the backrest (30) or the seat cushion (20) includes: An angle adjuster is disposed between the first frame and the second frame to adjust the rotation angle of the second frame relative to the first frame.

15. The seat (100) according to claim 14, wherein, At least one of the backrest (30) or the seat cushion (20) further includes: A driver, the driver being disposed on the second frame; and A drive shaft is connected to both the driver and the angle adjuster, and the driver drives the angle adjuster to rotate via the drive shaft.

16. The seat (100) according to claim 14 or 15, wherein, The angle adjuster includes at least one of a manual angle adjuster and an electric angle adjuster.

17. The seat (100) according to any one of claims 1-16, further comprising: The control unit communicates with the seat cushion (20) and the backrest (30) respectively to control the movement of the seat cushion (20) and the backrest (30).

18. The seat (100) according to any one of claims 1 to 17, wherein, The seat cushion (20) also includes: Seat cushion body (71); The first connecting frame (72) is slidably connected to the slide rail (10); A first rotating shaft (73) is used to rotatably connect the seat cushion body (71) and the first connecting frame (72); and A first drive device (74) is configured to drive the first rotating shaft (73) to rotate relative to the first connecting frame (72); The seat cushion (20) and the backrest (30) are independently configured; the backrest (30) further includes: Backrest body (81); The second connecting frame (82) is slidably connected to the slide rail (10); The second rotating shaft connects the backrest body (81) and the second connecting frame (82) rotatably. A second drive device (83) is configured to drive the second rotating shaft to rotate relative to the second connecting frame (82).

19. The seat (100) according to claim 18, wherein the seat cushion (20) and the backrest (30) satisfy at least one of the following: The seat cushion (20) further includes at least one first angle adjuster (75), which is connected to the seat cushion body (71), and the first rotating shaft (73) is kinetically connected to the at least one first angle adjuster (75). or, The backrest (30) also includes at least one second angle adjuster, which is connected to the backrest body (81), and the second rotating shaft is throttle connected to the at least one second angle adjuster.

20. The seat (100) according to claim 19, wherein, The seat cushion (20) and the backrest (30) satisfy at least one of the following: The first rotating shaft (73) passes through the at least one first angle adjuster (75), and the central hole wall of any one of the at least one first angle adjuster (75) is provided with a plurality of first spline grooves distributed along the circumferential direction; the first rotating shaft (73) is a spline shaft, and the key teeth on the first rotating shaft (73) are inserted into the plurality of first spline grooves; or, The second rotating shaft passes through the at least one second angle adjuster, and the central hole wall of any one of the at least one second angle adjuster is provided with a plurality of second spline grooves distributed in the circumferential direction; the second rotating shaft is a spline shaft, and the key teeth on the second rotating shaft are inserted into the plurality of second spline grooves.

21. The seat (100) according to claim 20, wherein, The seat cushion (20) and the backrest (30) also satisfy at least one of the following: The at least one first angle adjuster (75) includes two first angle adjusters (75), and the two first angle adjusters (75) are arranged axially spaced along the first rotation axis (73); or, The at least one second angle adjuster includes two second angle adjusters arranged axially spaced along the second rotation axis.

22. The seat (100) according to any one of claims 18-21, wherein, The seat cushion (20) and the backrest (30) satisfy at least one of the following: The first connecting frame (72) includes two first connecting plates (721) spaced apart along the width direction of the seat (100), the two first connecting plates (721) being slidably connected to the slide rail (10), and the first rotating shaft (73) being rotatably mounted on the two first connecting plates (721); or, The second connecting frame (82) includes two second connecting plates arranged at intervals along the width direction of the seat (100), the two second connecting plates being slidably connected to the slide rail (10), and the second rotating shaft being rotatably mounted on the two second connecting plates.

23. The seat (100) according to claim 22, wherein, The seat cushion (20) and the backrest (30) also satisfy at least one of the following: The two first connecting plates (721) are located at opposite ends of the first rotating shaft (73), and the first driving device (74) is located between the two first connecting plates (721) in the axial direction of the first rotating shaft (73). or, The two second connecting plates are located at opposite ends of the second rotating shaft, and the second driving device (83) is located between the two second connecting plates in the axial direction of the second rotating shaft.

24. The seat (100) according to claim 22 or 23, wherein, The seat cushion (20) and the backrest (30) also satisfy at least one of the following: The first connecting plate (721) includes: The first mounting section (722) is slidably connected to the slide rail (10); First connecting segment (723); and The first support section (724) and the first connecting section (723) connect the first mounting section (722) and the first support section (724); the first rotating shaft (73) is rotatably mounted on the first support section (724); or, The second connecting plate includes: The second mounting section is slidably connected to the slide rail (10); Second connecting segment; and The second support section, the second connecting section connects the second mounting section and the second support section; the second rotating shaft is rotatably mounted on the second support section.

25. The seat (100) according to any one of claims 18-24, wherein, The seat cushion (20) and the backrest (30) satisfy at least one of the following: The output end of the first drive device (74) is coaxial with the first rotating shaft (73); or, The output end of the second drive device (83) is coaxial with the second rotating shaft.

26. The seat (100) according to claim 25, wherein, The seat cushion (20) and the backrest (30) also satisfy at least one of the following: The first drive device (74) includes: First motor (741); and The first reduction mechanism (742) is connected to the first motor (741) in a transmission connection, and the first reduction mechanism (742) is connected to the first rotating shaft (73) in a transmission connection, and the first rotating shaft (73) is coaxially arranged with the output end of the first reduction mechanism (742). or, The second drive device (83) includes: Second motor; and The second reduction mechanism is connected to the second motor via a transmission connection. The second reduction mechanism is also connected to the second rotating shaft via a transmission connection. The second rotating shaft is coaxially arranged with the output end of the second reduction mechanism.

27. The seat (100) according to any one of claims 1 to 26, further comprising: Seat body; and Leg rest (2), the leg rest (2) being connected to the seat body; as well as Leg support telescopic drive assembly (300), comprising: First driving component (310); The first transmission member (320) and the first driving member (310) are capable of driving the first transmission member (320) to rotate; The second transmission component (330) is in transmission cooperation with the first transmission component (320), and the rotation of the first transmission component (320) can drive the second transmission component (330) to move; A third transmission member (340), the third transmission member (340) being connected to the second transmission member (330), and the movement of the second transmission member (330) being able to drive the third transmission member (340) to rotate; and A fourth transmission member (350) is engaged with the third transmission member (340) in a transmission relationship. The rotation of the third transmission member (340) can drive the fourth transmission member (350) to move. The fourth transmission member (350) is adapted to connect to the leg support (2).

28. The seat (100) according to claim 27, wherein, The second transmission member (330) moves in the same direction as the fourth transmission member (350).

29. The seat (100) according to claim 27 or 28, wherein, The first transmission component (320) is a lead screw, and the second transmission component (330) includes a threaded tube (334), which is sleeved on the lead screw so as to drive the threaded tube (334) to move when the lead screw rotates.

30. The seat (100) according to claim 29, wherein, The second transmission component (330) further includes: a first connecting plate (332) and a second connecting plate (333), wherein the first connecting plate (332) is connected to the second connecting plate (333), the threaded pipe (334) is connected to the first connecting plate (332), and the third transmission component (340) is connected to the second connecting plate (333).

31. The seat (100) according to claim 30, wherein, The third transmission component (340) includes a fixed pin and a gear, the gear being rotatably connected to the fixed pin, and the fixed pin being connected to the second connecting plate (333).

32. The seat (100) according to claim 31, wherein, The fourth transmission component (350) is a first rack, and the gear is meshed with the first rack.

33. The seat (100) according to claim 31, wherein, The drive assembly (300) further includes either a second drive member or a second rack (11); If the drive assembly (300) further includes the second drive member, the second drive member engages with the gear drive. In the case where the drive assembly (300) further includes the second rack (11), the second rack (11) is connected to the leg support (2), and the second rack (11) meshes with the gear.

34. The seat (100) according to any one of claims 27-33, wherein, The leg rest (2) includes: Mounting bracket (201); and The leg support telescopic assembly (1) is disposed on the mounting bracket (201); The leg support telescopic assembly (1) includes: Leg support base plate (12); Leg rest outer plate (200); and According to any one of claims 27 to 33, the drive assembly (300) of the leg support is provided with the first drive member (310) on the leg support base plate (12) and the fourth transmission member (350) is connected to the leg support outer plate (200).

35. The seat (100) according to claim 34 further includes a lifting assembly (202) connected between the mounting bracket (201) and the leg support base plate (12).

36. The seat (100) according to claim 34 or 35, wherein, The telescopic assembly (1) of the leg rest also includes: A first sliding member (40) is connected to the leg support base plate (12); and The second sliding member (50) is connected to the outer plate of the leg support (200), and the first sliding member (40) and the second sliding member (50) are in sliding engagement.

37. The seat (100) according to claim 36, wherein, The first sliding member (40) is a metal structural member, and the second sliding member (50) is a metal structural member.

38. A vehicle (1000), comprising: The seat (100) according to any one of claims 1 to 37.

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