Seat, control method thereof and vehicle

Abstract

The invention relates to a seat and a control method thereof and a vehicle, the seat comprises a base, a cushion framework, a first driving device and a second driving device, the cushion framework is rotationally connected to the base, and the rotating axis of the cushion framework extends in the width direction of the seat; the first driving device and the second driving device are both in driving connection with the seat cushion framework and can respectively drive the seat cushion framework to rotate. The first driving device and the second driving device can alternately or cooperatively work to drive the cushion framework to swing back and forth around the rotating axis extending in the width direction of the seat, the functions of the rocking chair are achieved, and meanwhile the problems of heating, performance degradation and service life shortening caused by long-time continuous operation of a single driving device are effectively solved; therefore, the stability and the reliability of the whole operation of the seat are improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle accessories, and particularly to a seat, its control method, and a vehicle. Background Art

[0002] In the structural layouts of mobile carriers such as vehicles, ships, and airplanes, as well as fixed places such as homes and offices, seats are usually provided to meet the seating needs of users. In order to improve seating comfort and the diversity of usage scenarios, in recent years, a seat structure with a rocking chair function has gradually emerged, enabling the seat to swing reciprocally within a certain range, thereby providing users with a rocking experience similar to a cradle, which is particularly suitable for scenarios such as rest, relaxation, or sleep assistance.

[0003] However, during the implementation of the rocking chair function of the seat, the driving device is prone to phenomena such as overheating, performance degradation, and shortened service life during long-term operation. Summary of the Invention

[0004] Embodiments of the present application provide a seat, its control method, and a vehicle, which improve the stability and reliability of the overall operation of the seat to at least partially solve the above technical problems.

[0005] To achieve the above object, according to the first aspect of the present application, a seat is provided, including: A base; A seat cushion skeleton, the seat cushion skeleton is rotatably connected to the base, and the rotation axis of the seat cushion skeleton extends along the width direction of the seat; A first driving device and a second driving device, both the first driving device and the second driving device are drivingly connected to the seat cushion skeleton and can respectively drive the seat cushion skeleton to rotate.

[0006] Optionally, the seat further includes a plurality of transmission rods, the plurality of transmission rods are sequentially hinged, and one end of the plurality of transmission rods is hinged to a position on the seat cushion skeleton that deviates from the rotation axis of the seat cushion skeleton; Wherein, both the first driving device and the second driving device are drivingly connected to the other ends of the plurality of transmission rods, thereby driving the seat cushion skeleton to rotate through the plurality of transmission rods.

[0007] Optionally, the plurality of transmission rods include: A first connecting rod, one end of the first connecting rod is hinged to a position on the seat cushion skeleton that deviates from the rotation axis of the seat cushion skeleton; A second connecting rod, one end of the second connecting rod is hinged to the other end of the first connecting rod, and the middle of the second connecting rod is hinged to the base; Wherein, both the first driving device and the second driving device are drivingly connected to the other end of the second connecting rod, so as to respectively drive the second connecting rod to rotate, and drive the seat frame to rotate through the first connecting rod.

[0008] Optionally, the seat further includes a first connecting member, a second connecting member and a first mating member. One end of the first connecting member is hinged to the other end of the second connecting rod, the other end of the first connecting member is movably connected to one end of the first mating member, one end of the second connecting member is hinged to the base, and the other end of the second connecting member is movably connected to the other end of the first mating member. Wherein, the first driving device and the second driving device respectively drive the first connecting member and the second connecting member to move, so as to change the distance between one end of the first connecting member and one end of the second connecting member, and drive the second connecting rod to rotate.

[0009] Optionally, the first connecting member includes a first lead screw, the second connecting member includes a second lead screw, and the first mating member includes a first nut. The first lead screw is screwed to the first nut and can change the distance between the other end of the second connecting rod and the first nut. The second lead screw is screwed to the first nut and can change the distance between the base and the first nut.

[0010] Optionally, there are two first connecting rods and two second connecting rods. One ends of the two first connecting rods are respectively hinged to the seat frame, the other ends of the two first connecting rods are respectively hinged to one ends of the two second connecting rods, and the middle parts of the two second connecting rods are respectively rotatably connected to the base. The seat further includes a first cross bar, which extends along the width direction of the seat, and both ends of the first cross bar are respectively connected to the other ends of the two second connecting rods. Wherein, one end of the first lead screw is connected to the first cross bar.

[0011] Optionally, the seat further includes a first connecting seat. The other end of the first lead screw is connected to the first cross bar through the first connecting seat, and the first driving device is installed on the first connecting seat.

[0012] Optionally, the base includes two brackets and a second cross bar, which extends along the width direction of the seat, and both ends of the second cross bar are respectively connected to the two brackets. Wherein, one end of the second lead screw is connected to the second cross bar.

[0013] Optionally, the seat further includes a second connecting seat. The other end of the second lead screw is connected to the second cross bar through the second connecting seat, and the second driving device is installed on the second connecting seat.

[0014] Optionally, the seat further includes: a third connecting rod, the middle of the third connecting rod is rotatably connected to the base, the rotation axis of the third connecting rod extends along the width direction of the seat, and one end of the third connecting rod is rotatably connected to the seat cushion frame, so that the seat cushion frame is rotatably connected to the base; a third driving device, the third driving device is drivingly connected to the other end of the third connecting rod, so as to drive the third connecting rod to rotate, so as to drive the seat cushion frame to approach or move away from the base.

[0015] Optionally, the seat further includes a third connecting member and a second mating member. One end of the second mating member is hinged to the other end of the third connecting rod, one end of the third connecting member is hinged to the seat cushion frame, and the other end of the third connecting member is movably connected to the other end of the second mating member; wherein, the third driving device drives the third connecting member to move, so as to change the distance between one end of the third connecting member and one end of the second mating member, so as to drive the third connecting rod to rotate.

[0016] Optionally, the second mating member includes a second nut, the third connecting member includes a third lead screw, the third lead screw is screwed to the second nut, and can change the distance between the seat cushion frame and the other end of the third connecting rod.

[0017] Optionally, the seat cushion frame includes a third cross bar and two fourth connecting rods. The third cross bar extends along the width direction of the seat, and both ends of the third cross bar are respectively connected to the two fourth connecting rods; wherein, one end of the third lead screw is connected to the third cross bar.

[0018] Optionally, the seat further includes a third connecting seat. One end of the third lead screw is connected to the third cross bar through the third connecting seat, and the third driving device is installed on the third connecting seat.

[0019] Optionally, the seat cushion frame further includes a fourth cross bar, the fourth cross bar is opposite to and spaced from the third cross bar, and both ends of the fourth cross bar are respectively connected to the two fourth connecting rods, wherein, one end of the third connecting rod is connected to the fourth cross bar.

[0020] Optionally, the seat further includes a backrest frame and an angle adjuster. The outer ring of the angle adjuster is fixedly connected to the backrest frame, and the inner ring of the angle adjuster is fixedly connected to the seat cushion frame. The outer ring and the inner ring are rotatably connected, so that the backrest frame and the seat cushion frame are rotatably connected.

[0021] According to a second aspect of the present application, there is provided a control method for a seat. Based on the seat described in any one of the above, the control method includes: Detecting that the seat enters the rocking chair mode; Controlling the first driving device and the second driving device to operate alternately.

[0022] Optionally, the controlling the first driving device and the second driving device to operate alternately includes: When the first driving device operates for a first preset duration, controlling the first driving device to turn off and controlling the second driving device to operate; and / or, When the second driving device operates for a second preset duration, controlling the second driving device to turn off and controlling the first driving device to operate.

[0023] Optionally, the controlling the first driving device and the second driving device to operate alternately includes: Obtaining the current temperature of the driving device in the operating state among the first driving device and the second driving device; When the current temperature reaches a preset temperature, controlling the driving device in the operating state to turn off, and controlling the driving device in the off state among the first driving device and the second driving device to operate.

[0024] According to a third aspect of the present application, there is provided a vehicle including the seat described in any one of the above or applying the control method of the seat described in any one of the above.

[0025] For the seat in the embodiment of the present application, by rotatably connecting the seat cushion frame to the base and providing the first driving device and the second driving device respectively drivingly connected to the seat cushion frame, the first driving device and the second driving device can operate alternately or cooperatively to drive the seat cushion frame to swing reciprocally around its rotation axis extending in the seat width direction. While realizing the rocking chair function, it effectively avoids the problems of heating, performance degradation and shortened service life caused by a single driving device running continuously for a long time, thereby improving the overall operation stability and reliability of the seat.

[0026] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. Description of the Drawings To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] To more fully understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, where the same reference numerals in the following description represent the same parts.

[0028] Figure 1 is a schematic structural diagram of a seat provided in an exemplary embodiment of the present disclosure; Figure 2 is Figure 1 a schematic structural diagram of the seat in Figure 3 is Figure 1 a schematic structural diagram of another perspective of the seat in Figure 4 is Figure 3 an enlarged schematic diagram of a local N in Figure 5 is Figure 1 a schematic structural diagram of yet another perspective of the seat in; Figure 6 is a schematic flowchart of a control method for a seat provided in an exemplary embodiment of the present disclosure.

[0029] Explanation of reference numerals: 100, seat; 1, base; 101, bracket; 102, second crossbar; 2, cushion frame; 201, fourth link; 202, third crossbar; 203, fourth crossbar; 3, first driving device; 31, first motor; 4, second driving device; 41, second motor; 5, transmission rod; 51, first link; 52, second link; 6, first fitting; 61, first nut; 7, first connecting member; 71, first lead screw; 8, second connecting member; 81, second lead screw; 9, first crossbar; 10, first connecting seat; 11, second connecting seat; 12, third link; 13, third driving device; 131, third motor; 14, second fitting; 141, second nut; 15, third connecting member; 151, third lead screw; 16, third connecting seat; 17, backrest frame; 18, angle adjuster; 19, fourth driving device; 191, fourth motor. Detailed implementation manners

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts belong to the protection scope of the present application.

[0031] Please refer to Figures 1 to 4 , the present application provides a seat 100, including a base 1, a seat cushion frame 2, a first driving device 3 and a second driving device 4. Among them, the base 1 is used to fixedly support the entire seat 100 and can be installed in mobile carriers such as vehicles, ships, airplanes, or fixed places such as homes and offices; the seat cushion frame 2 is rotatably connected to the base 1, and its rotation axis extends along the width direction of the seat 100, so that the seat cushion frame 2 can swing reciprocally relative to the base 1; the first driving device 3 and the second driving device 4 are both drivingly connected to the seat cushion frame 2 and can respectively drive the seat cushion frame 2 to rotate around its rotation axis.

[0032] In the technical solution of the present application, by rotatably connecting the seat cushion frame 2 to the base 1 and arranging the first driving device 3 and the second driving device 4 to be respectively drivingly connected to the seat cushion frame 2, the first driving device 3 and the second driving device 4 can work alternately or cooperatively to drive the seat cushion frame 2 to swing reciprocally around its rotation axis extending along the width direction of the seat 100. While realizing the rocking chair function, it effectively avoids the problems of heat generation, performance attenuation, and shortened service life caused by a single driving device running continuously for a long time, thereby improving the stability and reliability of the overall operation of the seat 100.

[0033] It can be understood that the first driving device 3 and the second driving device 4 are both drivingly connected to the seat cushion frame 2 and can respectively drive the seat cushion frame 2 to rotate around its rotation axis. In the rocking chair mode, the first driving device 3 and the second driving device 4 can work alternately. When one driving device is running, the other can be in a standby state, thereby realizing natural cooling and avoiding continuous heat accumulation. This alternating working method enables a good time distribution balance between the running and standby of a single driving device, effectively preventing overheating caused by continuous running for a long time, and also helps to slow down performance attenuation and extend the service life of the device. In addition, in some working modes, the first driving device 3 and the second driving device 4 can also cooperate and work together. By reasonably sharing the load, the power consumption requirements for a single driving device are reduced, thereby avoiding a large amount of heat generated by a single device running at a high load. Therefore, the cooperative working mode can also effectively suppress the occurrence of overheating, ensure the stability of the driving device operation, and reduce the problems of performance attenuation and shortened service life caused by high temperature.

[0034] Please refer to Figures 1 to 4, in some embodiments, the seat 100 further includes a plurality of transmission rods 5, which are sequentially hinged. One end of the plurality of transmission rods 5 is hinged to a position on the seat cushion frame 2 that is offset from the rotation axis of the seat cushion frame 2 (see Figure 2 point E in

[0035] ). Among them, both the first driving device 3 and the second driving device 4 are drivingly connected to the other ends of the plurality of transmission rods 5, so as to drive the seat cushion frame 2 to rotate through the plurality of transmission rods 5. In these embodiments, the seat 100 further includes a linkage mechanism composed of a plurality of sequentially hinged transmission rods 5, one end of which is hinged to a position on the seat cushion frame 2 that is offset from its rotation axis, and the other end is drivingly connected to the first driving device 3 and the second driving device 4. Through the transmission design of this linkage mechanism, the output actions of the first driving device 3 and / or the second driving device 4 can be converted into the reciprocating swing motion of the seat cushion frame 2 via the linkage mechanism, and the stable transmission of force and the effective guidance of the motion trajectory can be realized under the synergistic action of the linkage mechanism. This transmission method not only improves the control accuracy of the swing angle and stroke of the seat cushion frame 2 by the first driving device 3 and / or the second driving device 4, but also helps to disperse the stress concentration problem in the transmission process, thereby enhancing the overall structural strength and running stability of the system.

[0036] Please refer to Figures 1 to 4 , in some embodiments, the plurality of transmission rods 5 include a first connecting rod 51 and a second connecting rod 52. One end of the first connecting rod 51 is hinged to a position on the seat cushion frame 2 that is offset from the rotation axis of the seat cushion frame 2 (see Figure 2the point E in [reference]; one end of the second link 52 is hinged to the other end of the first link 51 (see Figure 2 the point F in [reference]); and the middle of the second link 52 is hinged to the base 1 (see Figure 2 the point G in [reference]); wherein, both the first driving device 3 and the second driving device 4 are drivingly connected to the other end of the second link 52 (see Figure 2 the point H in [reference]), so as to respectively drive the second link 52 to rotate, and drive the seat cushion frame 2 to rotate through the first link 51. In these embodiments, by providing a double-link transmission structure composed of the first link 51 and the second link 52, and hinging the middle of the second link 52 to the base 1, a lever-type transmission mechanism with the base 1 as the fulcrum is formed. This design not only improves the control accuracy of the driving device for the swing angle of the seat cushion frame 2, but also enhances the driving torque output ability and structural stability of the system through reasonable force arm distribution, and at the same time provides a more reliable mechanical basis for the independent operation or coordinated cooperation of the two driving devices.

[0037] It should be noted that the "middle" of the second link 52 is hinged to the base 1, which does not limit that the hinge point must be located at the geometric center position of the second link 52, but means that it is hinged to the base 1 in the non-endpoint area of the second link 52. This hinge point can be set at approximately the middle of the second link 52, or closer to one of its ends according to the actual transmission requirements. Therefore, "middle" should be understood here as a relative position description, rather than the midpoint in the strict geometric sense. Similar expressions about "middle" appearing in the following text have the same meaning as here and will not be repeated.

[0038] Please refer to Figure 2 and Figure 5 , in some embodiments, the seat 100 further includes a first connecting member 7, a second connecting member 8 and a first mating member 6. One end of the first connecting member 7 is hinged to the other end of the second link 52 (see Figure 2 the point H in [reference]), the other end of the first connecting member 7 is movably connected to one end of the first mating member 6, one end of the second connecting member 8 is hinged to the base 1 (see Figure 2 the point K in [reference]), and the other end of the second connecting member 8 is movably connected to the other end of the first mating member 6; wherein, the first driving device 3 and the second driving device 4 respectively drive the first connecting member 7 and the second connecting member 8 to move, so as to change the distance between one end of the first connecting member 7 and one end of the second connecting member 8 (i.e., Figure 2the distance between the H point and the K point in [description] to drive the second link 52 to rotate. In these embodiments, a telescopic linkage is formed by the first connecting member 7, the second connecting member 8 and the first mating member 6. The two ends of the linkage are respectively hinged to the other end of the second link 52 and the base 1. The first driving device 3 and the second driving device 4 can respectively drive the first connecting member 7 and the second connecting member 8 to move, and adjust the length of the linkage (i.e., Figure 2 the distance between the H point and the K point in [description]), thereby driving the rotation of the second link 52, and further driving the seat cushion frame 2 to swing through the first link 51. Through the telescoping of the linkage, the controllability and transmission efficiency of the drive system are effectively improved, so that the seat 100 has a smoother motion performance and higher response accuracy in the rocking chair mode, and at the same time provides structural support for various cooperation methods between the two driving devices.

[0039] Please refer to Figure 2 and Figure 5 , in some embodiments, the first connecting member 7 includes a first lead screw 71, the second connecting member 8 includes a second lead screw 81, the first mating member 6 includes a first nut 61, the first lead screw 71 is screwed with the first nut 61, and can change the distance between the other end of the second link 52 and the first nut 61 (i.e., Figure 2 the distance between the H point in [description] and the first nut 61), the second lead screw 81 is screwed with the first nut 61, and can change the distance between the base 1 and the first nut 61 (i.e., Figure 2 the distance between the K point in [description] and the first nut 61). In these embodiments, the first lead screw 71 is screwed with the first nut 61 and is connected to the other end of the second link 52. Using the principle of screw drive between the screw and the nut, the relative distance between the other end of the second link 52 and the first nut 61 can be accurately changed; the second lead screw 81 is also screwed with the first nut 61 and is connected to the base 1. Similarly, through the principle of screw drive, the relative distance between the base 1 and the first nut 61 can be accurately changed. By setting the linkage mechanism composed of the first lead screw 71, the second lead screw 81 and the first nut 61, the first driving device 3 drives the first lead screw 71 to rotate and / or the second driving device 4 drives the second lead screw 81 to rotate, so as to reliably adjust the relative position between the hinge point of the second lead screw 81 and the base 1 (i.e., Figure 2 the K point in [description]) and the other end of the second link 52 (i.e., Figure 2 the H point in [description]), realize the rotation of the second link 52, and thus drive the seat cushion frame 2 to swing reciprocally.

[0040] It should be noted that in the embodiments of the present application, "and / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, X and / or Y can represent: X exists alone, X and Y exist simultaneously, and Y exists alone.

[0041] In some embodiments, the first connecting member 7, the second connecting member 8, and the first mating member 6 can also adopt other types of structural combinations to achieve the same function. For example: The first connecting member 7 is a connecting rod, one end of which is hinged to the second connecting rod 52; the second connecting member 8 is another connecting rod, one end of which is hinged to the base 1; the first mating member 6 is a slider installed on the guide rail, and the other ends of the two connecting rods are respectively movably connected to the two ends of the slider; by controlling the slider to move along the guide rail or driving the connecting rods to act through the first driving device 3 and the second driving device 4 respectively, the distance between the ends of the two connecting rods away from the slider is changed, driving the second connecting rod 52 to swing around its hinge point. Another example: Both the first connecting member 7 and the second connecting member 8 are rigid connecting rods; the first mating member 6 is a spring or other elastic element arranged between the two rigid connecting rods; when one of the driving devices drives the corresponding rigid connecting rod to move, the elastic element deforms, thereby changing the relative distance between the ends of the two rigid connecting rods away from the elastic element, driving the second connecting rod 52 to rotate.

[0042] Among them, the first driving device 3 and the second driving device 4 can be realized by various forms of driving components, as long as they can meet the motion control of the corresponding connecting members. In some embodiments, the first driving device 3 includes a first motor 31, such as a stepper motor, a DC motor, or a servo motor; the second driving device 4 includes a second motor 41, and a stepper motor, a DC motor, or a servo motor can also be selected.

[0043] In addition, the first driving device 3 and the second driving device 4 can also adopt alternative solutions such as a pneumatic driving mechanism (such as a cylinder), a hydraulic driving mechanism (such as a hydraulic cylinder), or a linear actuator to provide a suitable power source in different application scenarios.

[0044] Please refer to Figure 1 、 Figures 3 to 5 , in some embodiments, there are two first connecting rods 51 and two second connecting rods 52. One ends of the two first connecting rods 51 are respectively hinged to the seat cushion frame 2 (see point E in Figure 2 ), and the other ends of the two first connecting rods 51 are respectively hinged to one ends of the two second connecting rods 52 (see point F in Figure 2 ), and the middle parts of the two second connecting rods 52 are respectively rotatably connected to the base 1 (see point G in Figure 2 ); the seat 100 further includes a first cross bar 9, the first cross bar 9 extends along the width direction of the seat 100, and the two ends of the first cross bar 9 are respectively connected to the other ends of the two second connecting rods 52 (that is, the first cross bar 9 corresponds to Figure 2the H point therein); wherein, one end of the first lead screw 71 is connected to the first cross bar 9. In these embodiments, there are two first link rods 51 and two second link rods 52 respectively. The seat 100 further includes a first cross bar 9 which extends along the width direction of the seat 100, and the two ends thereof are respectively connected to the other ends of the two second link rods 52, thereby forming a linkage structure for the two second link rods 52. The paired arrangement of the first link rod 51 and the second link rod 52 not only improves the load-bearing capacity and force balance of the transmission system, but also enhances the stability and balance of the seat cushion frame 2 during the swinging process, effectively avoiding problems such as partial load, jamming or vibration caused by uneven force on one side. The other end of the first lead screw 71 is connected to the first cross bar 9, so that only one driving connection point is needed to drive the two second link rods 52 on both sides to move synchronously. Through the above arrangement, the first lead screw 71, as a single driving connection point, can drive the two second link rods 52 on both sides to swing synchronously through the first cross bar 9, and then drive the two first link rods 51 on both sides to act cooperatively, and finally push the seat cushion frame 2 to swing reciprocally stably around its rotation axis. This structure not only simplifies the layout of the driving system, reduces the manufacturing cost and control complexity, but also ensures the action consistency of the transmission mechanisms on both sides, and improves the coordination, stability and reliability of the rocking chair function operation of the seat 100.

[0045] It can be understood that, in order to realize the connection between one end of the first lead screw 71 and the other ends of the two second link rods 52, two different structural forms can be adopted. In the first method, one end of the first lead screw 71 is hinged to the middle position of the first cross bar 9, and the two ends of the first cross bar 9 are respectively fixedly connected to the other ends of the two second link rods 52 (as Figure 4 shown); in the second method, one end of the first lead screw 71 is fixedly connected to the middle position of the first cross bar 9, and the two ends of the first cross bar 9 are respectively hinged to the other ends of the two second link rods 52. The above two structures can both realize the function that the first lead screw 71 drives the two second link rods 52 on both sides to move synchronously, and the present application does not make specific limitations.

[0046] Please refer to Figure 5 , in some embodiments, the seat 100 further includes a first connecting seat 10. The other end of the first lead screw 71 is connected to the first cross bar 9 through the first connecting seat 10, and the first driving device 3 is installed on the first connecting seat 10. In these embodiments, by setting the first connecting seat 10, not only the structural support and positioning reference for the connection between the first lead screw 71 and the first cross bar 9 are provided, but also a stable installation base for the first driving device 3 is provided, so that the first driving device 3 can drive the first lead screw 71 to move more firmly and accurately. This design is beneficial to improving the overall rigidity and response accuracy of the transmission system, and is also convenient for modular assembly and later maintenance of the driving components, further improving the reliability and engineering practicability of the driving structure of the seat 100.

[0047] Please refer to Figure 1 、 Figures 3 to 5 In some embodiments, the base 1 includes two brackets 101 and a second crossbar 102. The second crossbar 102 extends along the width direction of the seat 100, and both ends of the second crossbar 102 are respectively connected to the two brackets 101. Wherein, one end of the second lead screw 81 is connected to the second crossbar 102 (i.e., the K point corresponding to Figure 2 in). In these embodiments, the base 1 includes two brackets 101 and a second crossbar 102 extending along the width direction of the seat 100. Both ends of the second crossbar 102 are respectively connected to the two brackets 101, thereby forming a stable frame-type support structure. The design of this base 1 not only enhances the rigidity and load-bearing capacity of the overall structure, but also provides a unified reference platform for the installation of each functional component of the seat 100, which is beneficial to improving the assembly accuracy and operation stability. One end of the second lead screw 81 is connected to the second crossbar 102, so that the second lead screw 81 can obtain a stable support base through the second crossbar 102, and at the same time, it is convenient to achieve coordinated cooperation in the spatial layout with other transmission components, which is beneficial to realizing the reasonable transmission of the force flow, improving the transmission efficiency and the system response speed, and further enhancing the smoothness and reliability of the rocking chair function operation of the seat 100.

[0048] It can be understood that, in order to realize the hinged connection between one end of the second lead screw 81 and the base 1, two different structural forms can be adopted. One way is to hinge one end of the second lead screw 81 to the middle position of the second crossbar 102, and both ends of the second crossbar 102 are respectively fixedly connected to the two brackets 101 (as shown in 1); the other way is to fixedly connect one end of the second lead screw 81 to the middle position of the second crossbar 102, and both ends of the second crossbar 102 are respectively hinged to the two brackets 101. The above two structures can both realize the effective hinge between the second lead screw 81 and the base 1, meet the motion requirements and force requirements during the transmission process, and the present application does not make specific limitations on this.

[0049] In some embodiments, the seat 100 further includes a second connecting seat 11. The other end of the second lead screw 81 is connected to the second crossbar 102 through the second connecting seat 11, and the second driving device 4 is installed on the second connecting seat 11. In these embodiments, by setting the second connecting seat 11, it not only provides structural support and positioning reference for the connection between the second lead screw 81 and the second crossbar 102, but also provides a stable installation base for the second driving device 4, so that the second driving device 4 can be more compact and firmly integrated into the base 1 structure. This design is beneficial to improving the overall rigidity and response accuracy of the transmission system, and at the same time, it is convenient for the modular assembly and later maintenance of the driving components, further enhancing the reliability and engineering practicability of the driving structure of the seat 100.

[0050] Please refer toFigure 1 , Figure 2 and Figure 5 , in some embodiments, the seat 100 further includes a third link 12 and a third driving device 13. The middle of the third link 12 is rotatably connected to the base 1 (see point B in Figure 2 ). The rotation axis of the third link 12 extends along the width direction of the seat 100. One end of the third link 12 is rotatably connected to the seat cushion frame 2 (see point C in Figure 2 ), so that the seat cushion frame 2 is rotatably connected to the base 1; the third driving device 13 is drivingly connected to the other end of the third link 12 (see point A in Figure 2 ), thereby driving the third link 12 to rotate, so as to drive the seat cushion frame 2 to approach or move away from the base 1. In these embodiments, the seat 100 further includes a third link 12 and a third driving device 13. The middle part of the third link 12 is rotatably connected to the base 1, and its rotation axis extends along the width direction of the seat 100. One end of the third link 12 is rotatably connected to the seat cushion frame 2, so that the seat cushion frame 2 swings relative to the base 1 with this rotation axis as a reference. When the seat cushion frame 2 swings, its front end (see point L in Figure 2 ) descends and the rear end (see point C in Figure 2 ) ascends, or vice versa, and it does not rotate around a certain fixed axis located on the seat cushion frame 2. Therefore, the rocking motion is more natural and conforms to the human body's movement habits. On the basis of the original rocking chair structure, by introducing the third driving device 13 and the third link 12, the seat cushion frame 2 can not only achieve reciprocating swinging, but also has the ability to approach or move away from the base 1, so as to realize the adjustment function in the height direction. This design effectively expands the adjustment freedom degree of the seat 100, improves the controllability and adaptability of the seat cushion posture, and further enhances the flexibility and riding comfort of the seat 100.

[0051] Please refer to Figure 1 , Figure 2 and Figure 5 , in some embodiments, the seat 100 further includes a third connecting member 15 and a second cooperating member 14. One end of the second cooperating member 14 is hinged to the other end of the third link 12 (see point A in Figure 2 ). One end of the third connecting member 15 is hinged to the seat cushion frame 2 (see point L in Figure 2 ). The other end of the third connecting member 15 is movably connected to the other end of the second cooperating member 14; wherein, the third driving device 13 drives the third connecting member 15 to move, so as to change one end of the third connecting member 15 (i.e., point L in Figure 2 ) and one end of the second cooperating member 14 (i.e., point L in Figure 2the distance between point A in [reference] and drive the third link 12 to rotate. In these embodiments, the third connecting member 15 and the second mating member 14 form a telescopic linkage, and both ends of the linkage are respectively hinged to the other end of the third link 12 and the seat cushion frame 2. The third driving device 13 drives the third connecting member 15 to move, adjusts the length of the linkage (i.e., Figure 2 the distance between point L and point A in [reference]), and then drives the third link 12 to rotate around its hinge point with the base 1, and finally realizes the approaching or separating movement of the seat cushion frame 2 relative to the base 1. Through the above structural design, by the telescoping of the linkage composed of the third connecting member 15, the second mating member 14 and the third link 12, the swing angle of the third link 12 can be controlled, which not only enhances the controllability of the drive system and the flexibility of the transmission path, but also optimizes the power transmission efficiency, making the seat 100 more stable and responsive more precisely during the height adjustment process, and improving the use comfort and functionality.

[0052] Please refer to Figure 1 , Figure 2 and Figure 5 , in some embodiments, the second mating member 14 includes a second nut 141, the third connecting member 15 includes a third lead screw 151, the third lead screw 151 is screwed with the second nut 141, and can change the distance between the seat cushion frame 2 and the other end of the third link 12 (i.e., Figure 2 the distance between point L and point A in [reference]). In these embodiments, the second mating member 14 includes a second nut 141, and one end of the second mating member 14 is hinged to the other end of the third link 12 (i.e., Figure 2 point A in [reference]), the third connecting member 15 includes a third lead screw 151, and one end of the third connecting member 15 is hinged to the seat cushion frame 2 (i.e., Figure 2 point L in [reference]), the third lead screw 151 is screwed with the second nut 141, and can change the distance between the end of the third lead screw 151 away from the second nut 141 and the second nut 141 through screw drive, so as to change the relative distance between the seat cushion frame 2 and the other end of the third link 12. This structure utilizes the high-precision transmission characteristics between the lead screw and the nut, so that the third driving device 13 can realize the precise adjustment of the length of the linkage composed of the second nut 141 and the third lead screw 151 by driving the third lead screw 151 to rotate, thereby driving the third link 12 to rotate, and finally controlling the seat cushion frame 2 to approach or separate from the base 1.

[0053] Please refer to Figure 1 , Figures 3 to 5, in some embodiments, the seat cushion frame 2 includes a third crossbar 202 and two fourth linkages 201. The third crossbar 202 extends along the width direction of the seat 100, and both ends of the third crossbar 202 are respectively connected to the two fourth linkages 201; wherein, one end of the third lead screw 151 is connected to the third crossbar 202 (i.e., the L point corresponding to Figure 2 in the figure). In these embodiments, the seat cushion frame 2 includes a third crossbar 202 and two fourth linkages 201. The third crossbar 202 extends along the width direction of the seat 100, and both ends of it are respectively connected to one end of the two fourth linkages 201, thereby forming a stable support frame, enhancing the overall rigidity and load-bearing capacity of the seat cushion frame 2. Among them, one end of the third lead screw 151 is connected to the third crossbar 202, so that the entire seat cushion frame 2 can provide a stable installation base and force support for the third lead screw 151 through the third crossbar 202. This connection method not only ensures that the force borne by the third lead screw 151 during operation can be evenly transmitted to the fourth linkages 201 on both sides, but also effectively guarantees the balance and stability of the seat cushion frame 2 during movement, avoiding abnormal situations such as deflection and jamming caused by uneven force.

[0054] It can be understood that, in order to realize the hinge connection between one end of the third lead screw 151 and the seat cushion frame 2, two different structural forms can be adopted. In the first method, one end of the third lead screw 151 is hinged to the middle position of the third crossbar 202, and both ends of the third crossbar 202 are respectively fixedly connected to the two fourth linkages 201 (as shown in Figure 1 ); in the second method, one end of the third lead screw 151 is fixedly connected to the middle position of the third crossbar 202, and both ends of the third crossbar 202 are respectively hinged to the two fourth linkages 201. The above two structures can both realize the effective hinge connection between the third lead screw 151 and the seat cushion frame 2, meeting the movement requirements and force requirements during the transmission process, and the present application does not make specific limitations.

[0055] Refer to Figure 5 , in some embodiments, the seat 100 further includes a third connection seat 16. One end of the third lead screw 151 is connected to the third crossbar 202 through the third connection seat 16, and the third driving device 13 is installed on the third connection seat 16. In these embodiments, by setting the third connection seat 16, it not only provides structural support and positioning reference for the connection between the third lead screw 151 and the third crossbar 202, but also provides a stable installation base for the third driving device 13, enabling the third driving device 13 to be more compact and stable integrated into the seat cushion frame 2 structure. This design is beneficial to improving the overall rigidity and response accuracy of the transmission system, and at the same time facilitating the modular assembly and later maintenance of the driving components, further enhancing the reliability and engineering practicability of the driving structure of the seat 100.

[0056] See also Figure 1 、 Figures 3 to 5 In some embodiments, the seat frame 2 further includes a fourth crossbar 203, which is opposite to and spaced from the third crossbar 202. Both ends of the fourth crossbar 203 are connected to the two fourth connecting rods 201, wherein one end of the third connecting rod 12 is connected to the fourth crossbar 203 (i.e., the fourth crossbar 203 corresponds to Figure 2 Point C in the figure). In these embodiments, the seat cushion frame 2 also includes a fourth crossbar 203, which is arranged opposite and spaced apart from the third crossbar 202. Its two ends are respectively connected to the two fourth connecting rods 201, thereby forming a stable frame support structure together with the third crossbar 202 and the two fourth connecting rods 201. Among them, one end of the third connecting rod 12 is connected to the fourth crossbar 203, so that the third connecting rod 12 can obtain a stable force fulcrum through the fourth crossbar 203, and on this basis, realize posture adjustment or motion control of the seat cushion frame 2. Through the above structural design, not only the overall rigidity and load-bearing capacity of the seat cushion frame 2 are enhanced, but also a reasonable installation position and force path are provided for the transmission components, which helps to improve the response accuracy and operating smoothness of the drive system. In addition, the relative arrangement of the third crossbar 202 and the fourth crossbar 203 makes the structure more balanced, avoids local stress concentration, and further improves the stability and riding comfort of the seat 100 when performing rocking functions, lifting and lowering, etc.

[0057] It is understandable that the rotational connection between one end of the third link 12 and the seat cushion frame 2 can be realized in a variety of structural forms. For example, one way is to fix one end of the third link 12 to the middle position of the fourth cross bar 203, and the two ends of the fourth cross bar 203 are respectively rotatably connected to the two fourth links 201 (as shown in FIG. Figure 1 Another method is to pivotally connect one end of the third link 12 to the middle of the fourth crossbar 203, while the ends of the fourth crossbar 203 are fixedly connected to the two fourth links 201. Both of the above implementations can meet the linkage requirements between the third link 12 and the seat cushion frame 2, and this application does not specifically limit this.

[0058] In some embodiments, the seat 100 further comprises a backrest frame 17 and a recliner 18, wherein the outer ring of the recliner 18 is fixedly connected to the backrest frame 17, and the inner ring of the recliner 18 is fixedly connected to the seat cushion frame 2, and the outer ring and the inner ring are rotatably connected so that the backrest frame 17 is rotatably connected to the seat cushion frame 2 (see FIG. Figure 2Point D in the figure). In the structure of the seat 100, the outer ring of the recliner 18 is fixedly connected to the backrest frame 17, and the inner ring is fixedly connected to the seat cushion frame 2. The outer ring and the inner ring are rotatably connected, thereby realizing a flexible rotational connection between the backrest frame 17 and the seat cushion frame 2. This design gives the seat 100 flexibility and precision in adjusting the backrest angle, making it easy for users to adjust the backrest angle according to their own needs and comfort preferences, thereby improving riding comfort and adaptability. At the same time, the provision of the recliner 18 makes the overall structure of the seat 100 more compact and reasonable, which is conducive to optimizing the internal space layout of the seat 100, enhancing the stability and reliability of the seat 100, further improving the performance and service life of the seat 100, and meeting the user's needs for the comfort and functionality of the seat 100 in different scenarios.

[0059] In some embodiments, the chair 100 further includes a fourth drive device 19, such as a fourth motor 191, for driving the recliner 18 for precise angle adjustment. The fourth motor 191 is connected to the inner or outer ring of the recliner 18 and adjusts the relative angle between the backrest frame 17 and the seat cushion frame 2 according to user instructions or preset parameters.

[0060] See also Figure 6 According to a second aspect of the present application, a control method for a seat 100 is provided. The structure of the seat 100 is as described above. The control method includes: S100: Detecting that the seat 100 enters the rocking chair mode; S200: Control the first driving device 3 and the second driving device 4 to operate alternately.

[0061] In these embodiments, the first drive device 3 and the second drive device 4 are both drivably connected to the seat cushion frame 2, and are capable of respectively driving the seat cushion frame 2 to swing back and forth about its rotation axis extending along the width of the seat 100, thereby realizing the rocking function of the seat 100. Upon detecting that the seat 100 has entered rocking mode, the first drive device 3 and the second drive device 4 are controlled to operate alternately, thereby not only achieving the rocking effect on the seat cushion frame 2 but also avoiding the problems of heating, performance degradation, and shortened lifespan caused by the long-term continuous operation of a single drive device.

[0062] Specifically, the detection of the seat 100 entering the rocking chair mode can be achieved in various ways, including but not limited to the user actively selecting to turn on the rocking chair mode through the operation interface (such as the central control screen, armrest buttons, or voice commands), or the control system automatically judging and activating the mode based on the information collected by the sensors. For example, the user can select a preset rocking mode on the display screen or the armrest of the seat 100 and set the required frequency parameters (such as low frequency, medium frequency, high frequency), and can also perform personalized custom settings; in addition, the system can also monitor the user's physical signs in real time through integrated biometric sensors (such as respiratory and heart rate sensors, pressure sensors, etc.). When it detects that the user is in a relaxed or about-to-fall-asleep state, it automatically switches to the rocking chair mode to assist the user in falling asleep faster.

[0063] In some embodiments, once it is confirmed that the seat 100 has entered the rocking chair mode, the control system will synchronously start multiple adjustment and monitoring functions to ensure that the user obtains the best comfort experience and safety performance. For example, the system will activate various sensors in the seat 100, including weight detectors, pressure detectors, temperature detectors, etc., to obtain the basic physiological data and sitting posture information of the passenger. Among them, by measuring the pressure distribution of the head and buttocks, the system can estimate the height of the passenger and accordingly automatically adjust the height of the headrest of the seat 100, the opening angle of the leg rest, and the positions of the supporting structures such as the armrests and footrests, so that the posture of the seat 100 adapts to the body shape characteristics of the user, and the most comfortable rocking angle and movement range are achieved within a limited space.

[0064] At the same time, the system also continuously monitors the user's health status, such as judging whether the user has fallen asleep or is in a deep relaxation state through the respiratory and heart rate sensors and the sleep detection module. If it detects that the user has entered the sleep state, the control system will gradually reduce the rocking speed and frequency of the seat 100 and finally stop smoothly, realizing a seamless transition, avoiding disturbing the user, and at the same time reducing unnecessary energy consumption and actuator burden. In addition, the system can also intelligently match the most suitable rocking frequency and amplitude according to the big data model or preset rules, combined with the user's current physical condition and historical usage preferences, to achieve true adaptive control.

[0065] In some embodiments, the linkage control between the seat 100 and the environmental system can also be realized. For example, the seat 100 is linked with an audio playback device. The system can analyze the beat signal according to the music type selected by the user and synchronize it with the swing frequency of the seat 100, so that the seat 100 moves rhythmically with the music, enhancing the immersive experience. Soothing lullabies are played in the rest mode, and high-frequency swings are performed in the dynamic mode in coordination with the drumbeat rhythm, thereby improving the user's relaxation effect and entertainment experience. In addition, this linkage mechanism can be further integrated with the environmental system, such as being linked with the atmosphere light, air conditioner, fragrance system, etc., and adjusting parameters such as the light color, temperature, and smell according to the music style and the swinging state of the seat 100 to achieve a multi-dimensional sensory collaborative riding experience.

[0066] In some embodiments, S200: Controlling the first driving device 3 and the second driving device 4 to operate alternately includes: S210: When the first driving device 3 operates for a first preset duration, controlling the first driving device 3 to turn off and controlling the second driving device 4 to operate; and / or, When the second driving device 4 operates for a second preset duration, controlling the second driving device 4 to turn off and controlling the first driving device 3 to operate.

[0067] In these embodiments, by setting a preset running time, the first driving device 3 and the second driving device 4 periodically switch their working states after the seat 100 enters the rocking chair mode. Specifically, the first driving device 3 (such as the first motor 31) first runs for a first preset duration (such as 5 minutes, 6 minutes, 7 minutes, or 8 minutes, etc.), and then stops; at the same time, the second driving device 4 (such as the second motor 41) starts to run for a second preset duration (which can be the same as or different from the first preset duration, such as also 5 minutes, 6 minutes, 7 minutes, or 8 minutes, etc.), and then also stops; then it switches back to the first driving device 3 to start again, and so on in a cycle. Or, it can also be that the second driving device 4 starts before the first driving device 3, runs for a set time, and then switches to the first driving device 3 to run. The specific switching sequence can be flexibly set according to actual needs. Through this timing switching method based on a preset time, the two driving devices alternately drive the seat cushion frame 2 to swing reciprocally around its rotation axis extending in the width direction of the seat 100, thereby realizing the rocking chair function of the seat 100. Since the first driving device 3 and the second driving device 4 operate alternately, it avoids the high-load state of a single driving device working continuously for a long time, effectively reduces problems such as heat generation and mechanical fatigue caused by continuous operation, extends the service life of the driving components, and improves the reliability and running stability of the entire seat 100 driving system. At the same time, this control strategy performs driving switching based on a preset time, with a clear control logic and a simple implementation method. It does not rely on complex sensor feedback or dynamic algorithms, which is beneficial to reducing system development and maintenance costs and improving the stability and engineering feasibility of the control system. In addition, by flexibly setting the preset running time, it can also adapt to the load characteristics of different driving devices, further enhancing the adaptability and control accuracy of the system.

[0068] In some embodiments, S200: Controlling the first driving device 3 and the second driving device 4 to operate alternately includes: S221: Obtain the current temperature of the driving device in the running state among the first driving device 3 and the second driving device 4; S222: When the current temperature reaches the preset temperature, control the driving device in the running state to turn off, and control the driving device in the off state among the first driving device 3 and the second driving device 4 to run.

[0069] In these embodiments, the control system acquires the real-time temperature of the driving device that is currently in the operating state; when the temperature reaches the preset temperature, it controls the driving device to shut down and starts another driving device in the off state to continue running. For example, when the temperature of the first driving device 3 (such as the first motor 31) rises to the set threshold during operation, the control system automatically shuts it down and switches to the second driving device 4 (such as the second motor 41) to work, thereby realizing the seamless transfer of the driving task. Through the above control strategy, the first driving device 3 and the second driving device 4 can be intelligently switched according to the actual operating state after the seat 100 enters the rocking chair mode, avoiding the overheating problem caused by a single driving device running continuously for a long time, effectively preventing functional abnormalities or hardware damage caused by too high temperature, and further improving the safety and operating stability of the system. At the same time, this method realizes the dynamic allocation of the driving load, helps to extend the service life of the driving components, and enhances the reliability and environmental adaptability of the entire seat 100 driving system. In addition, this control method has good real-time response ability, can make timely adjustments according to the actual working conditions of the driving device, and improves the safety and intelligent level of the system operation.

[0070] It can be understood that during the process of monitoring the temperature of the first driving device 3 and the second driving device 4, the "current temperature" can be the surface temperature of the driving device or the actual working temperature of its key components (such as the coil of the motor, the control circuit or the bearing, etc., which are heat-sensitive parts), depending on the requirements of the system for temperature response sensitivity and control accuracy.

[0071] To effectively acquire the above temperature, temperature sensors can be set on the driving device, such as thermistors (NTC / PTC), infrared temperature measurement modules, integrated temperature sensing chips, etc. These sensors can be installed at different positions of the driving device according to actual needs, such as on the surface of the motor housing to measure the surface temperature, or embedded inside the motor near the winding to directly monitor the working temperature of the core components.

[0072] Correspondingly, the setting of the preset temperature should also be adjusted adaptively according to the type and position of the collected temperature. For example, if the temperature of the motor coil is detected, the preset temperature is usually set slightly lower than the maximum working temperature allowed by the insulation class of the motor (such as 130°C corresponding to class B insulation, and the preset value can be set to 110°C - 120°C); if the surface temperature is detected, a reasonable trigger threshold (such as 80°C - 90°C) can be set according to the relationship between the measured data and the internal temperature rise to ensure that the driving device is switched in time before reaching the dangerous temperature.

[0073] In addition, the preset temperature can also be dynamically adjusted according to factors such as the model of the driving device, load characteristics, heat dissipation conditions, and ambient temperature. It can even be personalized configured by the user through the user setting interface according to different usage scenarios, thereby enhancing the flexibility and applicability of the system.

[0074] According to the third aspect of the present application, a vehicle is provided, including a seat 100. The structure of the seat 100 is as described above or the control method of the seat 100 is as described above. Since this vehicle adopts all the technical solutions of the above-mentioned all embodiments, it at least has the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated one by one here.

[0075] The vehicle can be a fuel vehicle, a plug-in hybrid vehicle, a new energy vehicle, etc., and the present disclosure does not make specific limitations thereto.

[0076] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0077] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0078] Among the embodiments, embodiments, and related technical features of the present application, they can be combined and replaced with each other without conflict.

[0079] The above are only the preferred embodiments of the present application and do not impose any form of limitation on the present application. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A seat, characterized in that, Comprising: A base; A seat cushion frame, which is rotatably connected to the base, and the rotation axis of the seat cushion frame extends along the width direction of the seat; A first driving device and a second driving device, both the first driving device and the second driving device are drivingly connected to the seat cushion frame and can respectively drive the seat cushion frame to rotate.

2. The seat according to claim 1, wherein The seat further includes a plurality of transmission rods, and the plurality of transmission rods are sequentially hinged. One ends of the plurality of transmission rods are hinged to positions on the seat cushion frame that deviate from the rotation axis of the seat cushion frame; Wherein, both the first driving device and the second driving device are drivingly connected to the other ends of the plurality of transmission rods, so as to drive the seat cushion frame to rotate through the plurality of transmission rods.

3. The seat according to claim 2, characterized in that, The plurality of transmission rods include: A first connecting rod, one end of the first connecting rod is hinged to a position on the seat cushion frame that deviates from the rotation axis of the seat cushion frame; A second connecting rod, one end of the second connecting rod is hinged to the other end of the first connecting rod, and the middle of the second connecting rod is hinged to the base; Wherein, both the first driving device and the second driving device are drivingly connected to the other end of the second connecting rod, so as to respectively drive the second connecting rod to rotate, so as to drive the seat cushion frame to rotate through the first connecting rod.

4. The seat according to claim 3, wherein The seat further includes a first connecting member, a second connecting member and a first mating member. One end of the first connecting member is hinged to the other end of the second connecting rod, the other end of the first connecting member is movably connected to one end of the first mating member, one end of the second connecting member is hinged to the base, and the other end of the second connecting member is movably connected to the other end of the first mating member; Wherein, the first driving device and the second driving device respectively drive the first connecting member and the second connecting member to move, so as to change the distance between one end of the first connecting member and one end of the second connecting member, so as to drive the second connecting rod to rotate.

5. The seat according to claim 4, characterized in that, The first connecting member includes a first lead screw, the second connecting member includes a second lead screw, the first mating member includes a first nut, the first lead screw is screwed with the first nut and can change the distance between the other end of the second connecting rod and the first nut, the second lead screw is screwed with the first nut and can change the distance between the base and the first nut.

6. The seat according to claim 5, characterized in that, There are two first connecting rods and two second connecting rods. One ends of the two first connecting rods are respectively hinged to the seat cushion frame, the other ends of the two first connecting rods are respectively hinged to one ends of the two second connecting rods, and the middles of the two second connecting rods are respectively rotatably connected to the base; The seat further includes a first cross bar, the first cross bar extends along the width direction of the seat, and two ends of the first cross bar are respectively connected to the other ends of the two second connecting rods; Wherein, one end of the first lead screw is connected to the first cross bar.

7. The seat according to claim 6, wherein, The seat further includes a first connecting seat, the other end of the first lead screw is connected to the first cross bar through the first connecting seat, and the first driving device is installed on the first connecting seat.

8. The seat according to claim 5, wherein, The base includes two brackets and a second crossbar, the second crossbar extends along the width direction of the seat, and two ends of the second crossbar are respectively connected to the two brackets; Wherein, one end of the second lead screw is connected to the second crossbar.

9. The seat according to claim 8, characterized in that, The seat further includes a second connecting seat, the other end of the second lead screw is connected to the second crossbar through the second connecting seat, and the second driving device is installed on the second connecting seat.

10. The seat according to claim 3, wherein, The seat further includes: A third connecting rod, the middle of the third connecting rod is rotatably connected to the base, the rotation axis of the third connecting rod extends along the width direction of the seat, and one end of the third connecting rod is rotatably connected to the seat cushion frame, so that the seat cushion frame is rotatably connected to the base; A third driving device, the third driving device is drivingly connected to the other end of the third connecting rod, so as to drive the third connecting rod to rotate, so as to drive the seat cushion frame to approach or move away from the base.

11. The seat according to claim 10, characterized in that, The seat further includes a third connecting member and a second cooperating member, one end of the second cooperating member is hinged to the other end of the third connecting rod, one end of the third connecting member is hinged to the seat cushion frame, and the other end of the third connecting member is movably connected to the other end of the second cooperating member; Wherein, the third driving device drives the third connecting member to move, so as to change the distance between one end of the third connecting member and one end of the second cooperating member, so as to drive the third connecting rod to rotate.

12. The seat according to claim 11, characterized in that, The second cooperating member includes a second nut, the third connecting member includes a third lead screw, the third lead screw is screwed with the second nut, and can change the distance between the seat cushion frame and the other end of the third connecting rod.

13. The seat according to claim 12, characterized in that, The seat cushion frame includes a third crossbar and two fourth connecting rods, the third crossbar extends along the width direction of the seat, and two ends of the third crossbar are respectively connected to the two fourth connecting rods; Wherein, one end of the third lead screw is connected to the third crossbar.

14. The seat according to claim 13, characterized in that, The seat further includes a third connecting seat, one end of the third lead screw is connected to the third crossbar through the third connecting seat, and the third driving device is installed on the third connecting seat.

15. The seat according to claim 13, wherein The seat cushion frame further includes a fourth crossbar, the fourth crossbar is opposite to and spaced from the third crossbar, and two ends of the fourth crossbar are respectively connected to the two fourth connecting rods, Wherein, one end of the third connecting rod is connected to the fourth crossbar.

16. The seat according to any one of claims 1 to 15, characterized in that, The seat further includes a backrest frame and an angle adjuster, the outer ring of the angle adjuster is fixedly connected to the backrest frame, the inner ring of the angle adjuster is fixedly connected to the seat cushion frame, and the outer ring and the inner ring are rotatably connected, so that the backrest frame is rotatably connected to the seat cushion frame.

17. A control method for a seat, characterized in that, Based on the seat according to any one of claims 1 to 16, the control method includes: Detecting that the seat enters the rocking chair mode; Controlling the first driving device and the second driving device to operate alternately.

18. The control method of the seat according to claim 17, characterized in that, The controlling the first driving device and the second driving device to operate alternately includes: When the first driving device operates for a first preset duration, controlling the first driving device to turn off and controlling the second driving device to operate; and / or, After the second driving device operates for a second preset duration, control the second driving device to turn off and control the first driving device to operate.

19. The control method of the seat according to claim 17, characterized in that, The control for the first driving device and the second driving device to operate alternately includes: Obtain the current temperature of the driving device in the operating state among the first driving device and the second driving device; When the current temperature reaches a preset temperature, control the driving device in the operating state to turn off, and control the driving device in the off state among the first driving device and the second driving device to operate.

20. A vehicle, characterized in that, It includes the seat according to any one of claims 1 to 16 or the control method of the seat applying the seat according to any one of claims 17 to 19.

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