Seat damping system, seat structure, and vehicle

Abstract

The utility model relates to a kind of seat damping system, seat structure and vehicle, including shock-absorbing bottom, shock-absorbing top, damper and elastic component, shock-absorbing top has the first direction and the second direction of intersection, shock-absorbing top is connected with shock-absorbing bottom, and can be lifted relative to shock-absorbing bottom, and lifting direction is identical with the first direction;Damper is connected with shock-absorbing top in one end, and is used to provide damping to shock-absorbing top;Elastic component is movably arranged between shock-absorbing top and shock-absorbing bottom, and elastic component has the first support position and the second support position between shock-absorbing top and shock-absorbing bottom, which can be switched to each other, along the first direction: the height of first support position and the height of second support position are not equal;Wherein, when elastic component moves along the second direction from first support position to second support position, the height of shock-absorbing top along the first direction changes synchronously.

Description

Technical Field

[0001] This utility model belongs to the field of seat shock absorption technology, specifically relating to a seat shock absorption system, seat structure, and vehicle. Background Technology

[0002] Currently, most car seat shock absorption systems consist of coil springs and general hydraulic dampers. Therefore, when passengers of different weights sit in the seat, the forces acting on the coil springs and hydraulic dampers are inconsistent, resulting in inconsistent seat heights. This can cause the seat vibration frequency to fall within an uncomfortable range for the human body, making it difficult to adapt to different driving conditions, leading to poor shock absorption and low seat comfort. Utility Model Content

[0003] The purpose of this invention is to provide a seat damping system, seat structure, and vehicle that improves the seat's vibration damping effect.

[0004] The first aspect of this utility model discloses a seat shock absorption system, comprising: a shock-absorbing bottom, a shock-absorbing top, a damper, and an elastic component. The shock-absorbing top has intersecting first and second directions. The shock-absorbing top is movably connected to the shock-absorbing bottom and can rise and fall relative to the shock-absorbing bottom, with the rising and falling direction of the shock-absorbing top being the same as the first direction. One end of the damper is connected to the shock-absorbing top and is used to provide damping to the shock-absorbing top. The elastic component is movably disposed between the shock-absorbing top and the shock-absorbing bottom, and the elastic component has at least a first support position and a second support position that can be switched between each other between the shock-absorbing top and the shock-absorbing bottom. Along the first direction, the height of the first support position is not equal to the height of the second support position. When the elastic component moves along the second direction from the first support position to the second support position, the height of the shock-absorbing top along the first direction changes synchronously.

[0005] In one exemplary embodiment, the shock-absorbing bottom includes a base portion and a movable support portion, one end of the movable support portion is rotatably connected to the base portion, and the other end of the movable support portion is rotatably connected to the shock-absorbing top portion, the movable support portion having an inclined surface relative to the shock-absorbing top portion;

[0006] The first support position and the second support position are located at different heights on the inclined surface.

[0007] In one exemplary embodiment, the seat shock absorption system includes a first shaft and a second shaft, the first shaft being slidably connected to the shock absorption top and the second shaft being slidably connected to the base portion; the movable bracket includes a first movable arm, a second movable arm, and a support plate, the first movable arm being rotatably connected to the second movable arm, and the support plate being connected to the first movable arm and moving synchronously with the first movable arm; one end of the first movable arm is rotatably connected to the shock absorption top via the first shaft, and the other end of the first movable arm is rotatably connected to the base portion; one end of the second movable arm is rotatably connected to the base portion via a second shaft, and the other end of the second movable arm is rotatably connected to the shock absorption top; the inclined surface is located on the surface of the support plate facing the shock absorption top.

[0008] In one exemplary embodiment, the first movable arm includes a first inner arm rod and a second inner arm rod spaced apart from each other, and the second movable arm includes a first outer arm rod and a second outer arm rod spaced apart from each other. The first inner arm rod and the second inner arm rod are both located between the first outer arm rod and the second outer arm rod. One end of each of the first inner arm rod and the second inner arm rod is rotatably connected to the shock-absorbing top via a first shaft, and the other end of each of the first inner arm rod and the second inner arm rod is rotatably connected to the base portion. One end of each of the first outer arm rod and the second outer arm rod is rotatably connected to the base portion via a second shaft, and the other end of each of the first outer arm rod and the second outer arm rod is rotatably connected to the shock-absorbing top. The first inner arm rod is rotatably connected to the first outer arm rod. The second inner arm rod is rotatably connected to the second outer arm rod. The support plate is located between the first inner arm rod and the second inner arm rod, and is connected to both the first inner arm rod and the second inner arm rod.

[0009] In one exemplary embodiment, the shock absorber top is provided with a first sliding groove, the first shaft is located in the first sliding groove and moves within the first sliding groove; the base portion is provided with a second sliding groove, the second shaft is located in the second sliding groove and moves within the second sliding groove.

[0010] In one exemplary embodiment, the seat damping system further includes a drive motor, which is connected to the elastic component to drive the elastic component to move in the second direction.

[0011] In one exemplary embodiment of this application, the damper is hinged to the base portion at one end away from the shock-absorbing top, and the damper forms an angle with the base portion. The angle value of the angle changes synchronously with the movement of the shock-absorbing top. The seat shock absorption system further includes an angle monitoring sensor connected to the shock-absorbing top for monitoring the change in the angle value.

[0012] In one exemplary embodiment, the seat damping system includes a damping webbing connected to the damping bottom for connection to the seat, and / or; the seat damping system also includes a damping pad connected to the damping top and located on the side of the damping top facing the damping bottom.

[0013] The second aspect of this utility model discloses a seat structure, including a seat and the aforementioned seat shock absorption system, wherein the seat is located on the shock absorption top and connected to the shock absorption top.

[0014] The third aspect of this utility model discloses a vehicle, including a body connecting bracket assembly and the aforementioned seat structure, wherein the seat structure is connected to the body connecting bracket assembly.

[0015] The present invention has the following beneficial effects:

[0016] In this invention, when the seat damping system is connected to the seat, and the seat is positioned on the damping top, and the damping top bears the weight, the elastic component can be moved according to the passenger's weight, switching between a first support position and a second support position to change the position of the elastic component itself, thereby changing the height of the damping top. Therefore, this seat damping system can adjust the height of the damping top by changing the position of the elastic component, ensuring that the seat height is consistent even when passengers of different weights sit on it, preventing the seat vibration frequency from falling within the uncomfortable frequency range for the human body, ultimately improving the seat's damping effect. Simultaneously, one end of the damper is connected to the damping top and provides damping, thus hindering the movement of the damping top and dissipating the energy generated by its movement over time, further enhancing the seat's damping effect.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. The drawings herein are for illustrating the inventive concept of this application and are not entirely equivalent to the structure of the actual product protected by this application.

[0019] Figure 1A schematic diagram of the motion path of the movable bracket of the seat shock absorption system in an embodiment of this utility model is shown.

[0020] Figure 2 A three-dimensional structural schematic diagram of the seat shock absorption system in an embodiment of this utility model is shown.

[0021] Figure 3 A cross-sectional view of the seat shock absorption system in an embodiment of the present invention is shown.

[0022] Figure 4 Another cross-sectional view of the seat damping system in an embodiment of the present invention is shown.

[0023] Figure 5 A partial structural schematic diagram of the seat shock absorption system in an embodiment of this utility model is shown.

[0024] Figure 6 A cross-sectional structural schematic diagram of the damper of the seat shock absorption system in an embodiment of the present invention is shown.

[0025] Figure 7 A three-dimensional structural diagram of the seat structure in an embodiment of this utility model is shown.

[0026] Figure 8 A three-dimensional structural schematic diagram of the backrest frame assembly of the seat shock absorption system in an embodiment of the present invention is shown.

[0027] Figure 9 A three-dimensional structural schematic diagram of the seat cushion frame assembly of the seat shock absorption system in an embodiment of the present invention is shown.

[0028] Figure 10 A three-dimensional structural diagram of the vehicle body connection bracket of the seat shock absorption system in an embodiment of this utility model is shown.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10. Seat shock absorption system; 11. Shock absorber bottom; 111. Base; 112. Movable bracket; 1121. First movable arm; 1122. Second movable arm; 1123. Support plate; 11a. Inclined surface; 112a. First inner arm; 112b. Second inner arm; 112c. First outer arm; 112d. Second outer arm; 12. Shock absorber top; 13. Damper; 131. Upper fixed bushing; 132. Wiring harness; 133. Electromagnetic coil; 134. Connecting rod; 135. Top cover; 136. Damper cylinder; 137. Piston; 138. Floating piston; 139. Lower fixed bushing; 14. Elastic component; 141. Fixing plate; 142. Tower spring; 15a. First shaft; 15b. Second... 101. Shaft; 102. First sliding groove; 103. Second sliding groove; 16. Drive motor; 17. Angle monitoring sensor; 18. Shock-absorbing webbing; 19. Damping material; 20. Seat; 21. Backrest frame assembly; 211. "U" shaped tube; 212. Right backrest side panel; 213. Left backrest side panel; 214. Left angle adjuster; 215. Right angle adjuster; 22. Seat cushion frame assembly; 221. Right seat cushion side panel; 222. Left seat cushion side panel; 223. Support round tube; 224. Support square tube; 225. Anti-submersion round tube; 226. Motor mounting bracket; 227. Left shock absorber bracket support plate; 228. Right shock absorber bracket support plate; 30. Body connecting bracket; a. First direction; b. Second direction; c. Third direction. Detailed Implementation

[0031] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0032] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0033] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting the present application.

[0034] like Figures 1 to 10 As shown, this embodiment provides a seat damping system 10, which is used to connect between the seat 20 and the floor inside the vehicle cabin to improve the comfort of the seat 20.

[0035] Combination Figures 1 to 3 As shown, the seat damping system 10 includes a damping base 11, which is used to connect to the floor inside the vehicle cabin to fix the seat damping system 10 to the floor inside the vehicle cabin.

[0036] Combination Figures 1 to 3 as well as Figure 7 As shown, the seat shock absorption system 10 also includes a shock absorption top 12, which has intersecting first direction a and second direction b. The shock absorption top 12 is movably connected to the shock absorption bottom 11 and can be raised and lowered relative to the shock absorption bottom 11. The raising and lowering direction of the shock absorption top 12 is the same as the first direction a. The shock absorption top 12 is used to support the seat 20 and thus transmit the weight of the seat 20.

[0037] In this embodiment, the first direction a is the direction of gravity of the shock-absorbing top 12, and the second direction b is perpendicular to the first direction a.

[0038] Combination Figures 1 to 2 ,as well as Figure 6 As shown, the seat damping system 10 also includes a damper 13, one end of which is connected to the damping top 12 and the other end of which is connected to the damping bottom 11. Alternatively, the other end of the damper 13 may be connected to the floor of the front cabin of the vehicle and, after receiving the force generated when the damping top 12 moves relative to the damping bottom 11, it is used to provide damping to the damping top 12.

[0039] It should be understood that when the shock absorber top 12 moves, the damper 13 will receive the force transmitted by the shock absorber top 12, and can then determine the height of the seat 20 according to the magnitude of the force, and can also provide damping to the shock absorber top 12 accordingly, so as to play the role of shock absorption and energy dissipation.

[0040] For example, the damper 13 will move synchronously after receiving the force transmitted from the shock absorber top 12. At this time, the amount of movement of the damper 13 can be recorded by the corresponding sensor, and then the height change value of the seat 20 can be calculated based on the amount of movement of the damper 13. Finally, the real-time height value of the seat 20 can be determined by combining the initial height value of the seat 20 with the height change value of the seat 20. Alternatively, the height change value of the seat 20 can be calculated based on the magnitude of the force received by the damper 13, and the real-time height value of the seat 20 can be determined by combining the initial height value of the seat 20 with the height change value of the seat 20.

[0041] In this embodiment, the damper 13 is a variable damper, specifically a magnetorheological damper. The magnetorheological damper utilizes electromagnetic reaction to control the overall damping of the seat 20 more quickly and accurately, so as to meet the shock absorption effect of the seat 20 under different road surfaces and vehicle speeds, making the passenger ride more comfortable.

[0042] Combination Figure 6 As shown, the magnetorheological damper also includes a damper cylinder 136, which provides a cavity for the damper 13 and stores the magnetorheological fluid and nitrogen.

[0043] Combination Figure 6 As shown, the magnetorheological damper includes an upper fixed bushing 131 and a lower fixed bushing 139. The upper fixed bushing 131 is used to connect to the damping top 12 and transmit force and vibration, while the lower fixed bushing 139 is connected to the lower end of the damper cylinder 136.

[0044] Combination Figure 6 As shown, the magnetorheological damper also includes a connecting rod 134, which connects to the upper fixed bushing 131 and transmits the force and vibration brought by the upper fixed bushing 131.

[0045] Combination Figure 6 As shown, the magnetorheological damper also includes a piston 137 and an electromagnetic coil 133. The piston 137 is connected to the connecting rod 134 and transmits the force and vibration brought by the connecting rod 134. The electromagnetic coil 133 is arranged around the piston 137. The piston 137 is provided with a flow groove. When the piston 137 moves up and down, it allows the magnetorheological fluid to flow, thereby generating damping.

[0046] Combination Figure 6 As shown, the magnetorheological damper also includes a wire harness 132 for connecting the damping controller and the electromagnetic coil 133. When the wire harness 132 is energized, the magnitude of the magnetic field force on the electromagnetic coil 133 will also change, and the damping will change as the magnetorheological fluid flows.

[0047] Combination Figure 6 As shown, the magnetorheological damper also includes an upper cover 135, which fixes the oil seal to the damper cylinder 136.

[0048] Combination Figure 6 As shown, the magnetorheological damper also includes a floating piston 138, nitrogen gas, and magnetorheological fluid. The floating piston 138 is located on the side of the piston 137 inside the damper cylinder 136 facing the bottom of the damper cylinder 136, to isolate the magnetorheological fluid and nitrogen gas, preventing nitrogen gas from entering the magnetorheological fluid and affecting the performance of the magnetorheological damper. Specifically, the magnetorheological fluid is located on the side of the floating piston 138 facing the piston 137, and the nitrogen gas is located on the side of the floating piston 138 facing the lower fixed bushing 139.

[0049] It should be understood that the magnetorheological fluid is a magnetic soft-particle suspension. Filling the damper cylinder 136 with this fluid, the magnetic field of the electromagnetic coil 133 alters its rheological properties (or generates fluid resistance), thereby producing a rapidly responsive and highly controllable damping force. Furthermore, when the piston 137 moves downwards, the volume of the connecting rod 134 intruding into the damper cylinder 136 increases, while other parts of the damper cylinder 136 cannot be compressed; therefore, compressed nitrogen is needed to absorb the intrusion. Conversely, when the piston 137 moves upwards, space is needed for nitrogen to absorb and release the intrusion.

[0050] Furthermore, the damping value of the magnetorheological damper can be adjusted in real time according to the vehicle acceleration value, the seat 20 acceleration value, and the corresponding control strategy, thereby ensuring better shock absorption and vibration amplitude of the seat 20, and preventing the seat 20 from bottoming out under high vehicle acceleration. In addition, the damping value can be quickly adjusted to the maximum according to the collision signal to support the seat 20, thereby improving the collision strength of the seat 20 and reducing occupant injury.

[0051] Combination Figures 1 to 3 As shown, the seat damping system 10 also includes an elastic component 14, which is movably disposed between the damping top 12 and the damping bottom 11. The elastic component 14 has at least a first support position and a second support position that can be switched between each other between the damping top 12 and the damping bottom 11. Along the first direction a: the height of the first support position is not equal to the height of the second support position.

[0052] In this embodiment, after the elastic component 14 is movably disposed between the shock-absorbing top 12 and the shock-absorbing bottom 11, one end of the elastic component 14 contacts the shock-absorbing top 12 and the other end of the elastic component 14 contacts the shock-absorbing bottom 11, so that after the shock-absorbing top 12 is subjected to force, the elastic component 14 can first play a shock-absorbing role on the shock-absorbing top 12.

[0053] In other embodiments, the elastic component 14 may contact only the damping bottom 11 or not at all. In this case, when the damping top 12 is affected by an external force and moves towards the elastic component 14, a reaction force can first be applied to the damping top 12 only through the damper 13 to enhance the support of the seat 20. Then, after contacting the elastic component 14, the elastic component 14 will then provide shock absorption for the damping top 12. When the elastic component 14 is not in contact with the damping bottom 11, the damping top 12 can be supported by the damper 13.

[0054] Furthermore, the elastic component 14 can support the shock-absorbing top 12 along its path from the first support position to the second support position. That is, the elastic component 14 can also move to an intermediate position between the first and second support positions, and there can be multiple intermediate positions. The height of this intermediate position along the first direction a is different from the height of either the first or second support position along the first direction a.

[0055] For example, when the elastic component 14 moves from the first support position to the second support position, the height of the position of the elastic component 14 in the first direction a gradually decreases or gradually increases.

[0056] In this embodiment, when the elastic component 14 moves from the first support position to the second support position along the second direction b, the height of the shock-absorbing top 12 along the first direction a changes synchronously.

[0057] For example, when one end of the elastic component 14 contacts the damping top 12 and the other end of the elastic component 14 contacts the damping bottom 11, and the elastic component 14 is used to support the damping top 12, since the height of the first support position is not equal to the height of the second support position, when the elastic component 14 moves along the second direction b from the first support position to the second support position, the height of the damping top 12 along the first direction a can be changed synchronously.

[0058] In other embodiments, the elastic component 14 may contact the damping bottom 11 only, or not at all. In this case, a transmission member can be provided, connecting the elastic component 14 and the damping top 12. When the elastic component 14 moves along the second direction b, it can drive the transmission member, thereby driving the height of the damping bottom 11 to change synchronously along the first direction a. When the elastic component 14 is not in contact with the damping bottom 11, the damping top 12 can be supported by the damper 13.

[0059] For example, the transmission component can be a telescopic device. The fixed end of the telescopic device is connected to the bottom of the shock absorber 11, the telescopic end of the telescopic device is connected to the top of the shock absorber 12, and the driving end of the telescopic device is connected to the elastic component 14. When the elastic component 14 moves from the first support position to the second support position along the second direction b, the driving end of the telescopic device receives the driving force of the elastic component 14, which can drive the telescopic end of the telescopic device to extend or retract, so that the height of the bottom of the shock absorber 11 can change synchronously along the first direction a.

[0060] It should be understood that, since the elastic component 14 is located between the damping top 12 and the damping bottom 11, if the damping top 12 is lowered along the first direction a until it contacts the elastic component 14, and then continues to be lowered along the first direction a, the elastic component 14 can also undergo elastic deformation along the first direction a. In other words, the displacement direction of the elastic component 14 (i.e., the second direction b) and the elastic deformation direction of the elastic component 14 are not the same. Specifically, the elastic component 14 switches between the first support position and the second support position along the second direction b.

[0061] In this invention, when the seat damping system 10 is connected to the seat 20, and the seat 20 is located on the damping top 12 and bears the weight through the damping top 12, the elastic component 14 can be moved according to the passenger's weight, switching between a first support position and a second support position to change the position of the elastic component 14 itself, thereby changing the height of the damping top 12 along the first direction a. Therefore, the seat damping system 10 can adjust the height of the damping top 12 along the first direction a by changing the position of the elastic component 14, so that the height of the seat 20 can be consistent even when passengers of different weights sit on it, avoiding the vibration frequency of the seat 20 falling within the frequency range that is uncomfortable for the human body, and ultimately improving the vibration damping effect of the seat 20. At the same time, one end of the damper 13 is connected to the damping top 12 and is used to provide damping to the damping top 12, thereby making the damping top 12 subject to resistance during movement, and ultimately dissipating the energy generated by the movement of the damping top 12 over time, further improving the vibration damping effect of the seat 20.

[0062] Combination Figure 1 and Figure 2 As shown, the shock-absorbing bottom 11 includes a base portion 111 and a movable support portion 112. One end of the movable support portion 112 is rotatably connected to the base portion 111, and the other end of the movable support portion 112 is rotatably connected to the shock-absorbing top 12.

[0063] In this embodiment, one end of the elastic component 14 contacts the shock-absorbing bottom 11, specifically, it contacts the movable support portion 112. Of course, in other embodiments, the contact between one end of the elastic component 14 and the shock-absorbing bottom 11 may also refer to the contact between the base portion 111 and the elastic component 14, provided that the height of the elastic component 14 changes along the first direction a when it moves along the second direction b.

[0064] Combination Figure 1 As shown, the movable support portion 112 has an inclined surface 11a relative to the shock-absorbing top 12; the first support position and the second support position are located at different heights on the inclined surface 11a.

[0065] In this embodiment, when the base portion 111 is fixed to the floor inside the vehicle cabin, and one end of the movable support portion 112 is rotatably connected to the base portion 111 and the other end is rotatably connected to the shock-absorbing top 12, the shock-absorbing top 12 can move relative to the movable support portion 112 or the base portion 111, and the shock-absorbing top 12 can move as a whole relative to the base portion 111 with the movable support portion 112. When the shock-absorbing top 12 is affected by gravity and moves vertically relative to the movable support portion 112, and approaches the movable support portion 112, it can compress the elastic component 14, thereby achieving a shock-absorbing effect.

[0066] Meanwhile, since the movable support portion 112 has an inclined surface 11a relative to the shock-absorbing top 12, and the first support position and the second support position are spaced apart on the inclined surface 11a, the distance between the inclined surface 11a and the shock-absorbing top 12 is not equal everywhere. This allows the first support position and the first support position to be set on the movable support portion 112 at different heights along the first direction a.

[0067] Of course, in other embodiments, the surface of the shock-absorbing top 12 facing the movable support portion 112 may have an inclined surface 11a, which is used to contact the elastic component 14. The inclined surface 11a is set corresponding to the first support position and the second support position. In this way, when the elastic component 14 moves from the first support position to the second support position along the second direction b, the height of the shock-absorbing top 12 along the first direction a changes synchronously with the height of the elastic component 14.

[0068] Combination Figure 3 As shown, the seat shock absorption system 10 includes a first shaft 15a and a second shaft 15b. The first shaft 15a is slidably connected to the shock absorption top 12, and the second shaft 15b is slidably connected to the base portion 111.

[0069] In this embodiment, after the first shaft 15a is slidably connected to the shock-absorbing top 12, the first shaft 15a slides relative to the shock-absorbing top 12 along the second direction b; after the second shaft 15b is slidably connected to the base portion 111, the second shaft 15b slides relative to the base portion 111 along the second direction b.

[0070] Furthermore, combined Figures 4 to 5As shown, the movable support portion 112 includes a first movable arm 1121, a second movable arm 1122, and a support plate 1123. The first movable arm 1121 and the second movable arm 1122 are rotatably connected. The support plate 1123 is connected to the first movable arm 1121 and moves synchronously with the first movable arm 1121. One end of the first movable arm 1121 is rotatably connected to the shock-absorbing top 12 via a first shaft 15a, and the other end of the first movable arm 1121 is rotatably connected to the base portion 111. One end of the second movable arm 1122 is rotatably connected to the base portion 111 via a second shaft 15b, and the other end of the second movable arm 1122 is rotatably connected to the shock-absorbing top 12.

[0071] In this embodiment, the first movable arm 1121 and the second movable arm 1122 are arranged crosswise. After one end of the first movable arm 1121 is rotatably connected to the shock-absorbing top 12 through the first shaft 15a, the first movable arm 1121 can rotate relative to the shock-absorbing top 12 around the first shaft 15a hinge point. That is, the first movable arm 1121 and the first shaft 15a are connected by a hinge. At the same time, the sliding of the first shaft 15a relative to the shock-absorbing top 12 will also drive the first movable arm 1121 to slide relative to the shock-absorbing top 12. After one end of the second movable arm 1122 is rotatably connected to the base part 111 via the second shaft 15b, the second movable arm 1122 is hinged to the second shaft 15b. That is to say, the second movable arm 1122 and the second shaft 15b are connected by a hinge and can rotate around the second shaft 15b relative to the base part 111. At the same time, the sliding of the second shaft 15b relative to the base part 111 will also drive the second movable arm 1122 to slide relative to the base part 111.

[0072] It should be understood that, through the hinge of the first movable arm 1121 to the first shaft 15a, the sliding connection of the first shaft 15a to the shock-absorbing top 12, the rotatable connection of the first movable arm 1121 to the base portion 111, and the hinge of the second movable arm 1122 to the second shaft 15b, the sliding connection of the second shaft 15b to the base portion 111, and the rotatable connection of the second movable arm 1122 to the shock-absorbing top 12, the first movable arm 1121 and the second movable arm 1122 can rotate relative to the shock-absorbing top 12 while the shock-absorbing top 12 is subjected to force and moves towards the base portion 111 along the first direction a, and slide relative to the shock-absorbing top 12 along the first direction a, so as to provide clearance space for the shock-absorbing top 12 to move towards the base portion 111 along the first direction a.

[0073] For example, combined Figure 1As shown, when the shock-absorbing top 12 moves towards the base portion 111 along the first direction a, the distance between the shock-absorbing top 12 and the base portion 111 will decrease. At this time, the first movable arm 1121 and the second movable arm 1122 connected between the shock-absorbing top 12 and the base portion 111 will rotate under the drive of the shock-absorbing top 12, and slide relative to the shock-absorbing top 12 with the first shaft 15a and the second shaft 15b, so as to move away from the center of the shock-absorbing top 12, thereby reducing the horizontal height of the first movable arm 1121 and the second movable arm 1122, and thus providing clearance space for the shock-absorbing top 12 to move towards the base portion 111 along the first direction a.

[0074] Furthermore, combined Figure 5 As shown, the inclined surface 11a is located on the surface of the support plate 1123 facing the damping top 12. That is, the elastic component 14 moves along the second direction b on the support plate 1123.

[0075] It should be understood that when both the first support position and the first support position are set on the support plate 1123, and the elastic component 14 is located on the support plate 1123, if the shock-absorbing top 12 is lowered along the first direction a, the first movable arm 1121, the support plate 1123 and the second movable arm 1122 begin to move, and the elastic component 14 begins to undergo the first stage of elastic compression, that is, the first-level shock absorption; when the first movable arm 1121, the support plate 1123 and the second movable arm 1122 move to a standstill, the shock-absorbing top 12 can continue to exert pressure on the elastic component 14, which also causes the elastic component 14 to begin the second stage of elastic compression, that is, the second-level shock absorption, until the shock-absorbing top 12 can no longer be lowered along the first direction a.

[0076] If the elastic component 14 is disposed between the base portion 111 and the shock-absorbing top 12, when the shock-absorbing top 12 is lowered along the first direction a, although the elastic component 14 can undergo elastic compression, when the first movable arm 1121, the support plate 1123 and the second movable arm 1122 move to a stop, since the support height of the first movable arm 1121, the support plate 1123 and the second movable arm 1122 on the shock-absorbing top 12 no longer changes, the elastic component 14 will not be compressed again. Therefore, by disposing both the first support position and the first support position on the support plate 1123, compared to disposing both the first support position and the first support position on the base portion 111, the seat shock absorption system 10 can achieve an additional level of shock absorption effect.

[0077] Combination Figure 3 and Figure 4As shown, the shock-absorbing top 12 is provided with a first sliding groove 101, and the first shaft 15a is located in the first sliding groove 101 and moves within the first sliding groove 101; the base part 111 is provided with a second sliding groove 102, and the second shaft 15b is located in the second sliding groove 102 and moves within the second sliding groove 102.

[0078] In this embodiment, after providing a first sliding groove 101 on the shock-absorbing top 12, the sliding path of the first shaft 15a can be guided by the first sliding groove 101, while the sliding stroke of the first shaft 15a can also be limited by the first sliding groove 101, thereby controlling the movement stroke of the first movable arm 1121. Correspondingly, after providing a second sliding groove 102 on the base portion 111, the sliding path of the second shaft 15b can be guided by the second sliding groove 102, while the sliding stroke of the second shaft 15b can also be limited by the second sliding groove 102, thereby controlling the movement stroke of the second movable arm 1122.

[0079] For example, the damping top 12 has a third direction c (e.g., the width direction of the damping top 12) that intersects both the first direction a (e.g., the height direction of the damping top 12) and the second direction b (e.g., the length direction of the damping top 12). There can be two first sliding grooves 101. The two first sliding grooves 101 are spaced apart along the third direction c on two opposite sides of the damping top 12, and the openings of the two first sliding grooves 101 are arranged opposite each other along the third direction c. One end of the first shaft 15a passes through one of the two first sliding grooves 101, and the other end of the first shaft 15a passes through the other of the two first sliding grooves 101. There can be two second sliding grooves 102. The two second sliding grooves 102 are spaced apart along the third direction c on two opposite sides of the base portion 111, and the openings of the two second sliding grooves 102 are arranged opposite each other along the third direction c. One end of the second shaft 15b passes through one of the two second sliding grooves 102, and the other end of the second shaft 15b passes through the other second sliding groove 102.

[0080] Furthermore, the lengths of the first sliding groove 101 and the second sliding groove 102 are adapted to the lifting height of the shock-absorbing top 12. That is, when the first shaft 15a slides along the first sliding groove 101 to the end and the second shaft 15b slides along the second sliding groove 102 to the end, the lifting height of the shock-absorbing top 12 reaches its maximum, thereby preventing the shock-absorbing top 12 from undergoing horizontal displacement after lifting.

[0081] In this embodiment, combined with Figure 4 and Figure 5As shown, the first movable arm 1121 includes a first inner arm rod 112a and a second inner arm rod 112b spaced apart from each other, and the second movable arm 1122 includes a first outer arm rod 112c and a second outer arm rod 112d spaced apart from each other. The first inner arm rod 112a and the second inner arm rod 112b are both located between the first outer arm rod 112c and the second outer arm rod 112d. One end of the first inner arm rod 112a and the second inner arm rod 112b is rotatably connected to the shock-absorbing top 12 via a first shaft 15a, and the other end of the first inner arm rod 112a and the second inner arm rod 112b is rotatably connected to the base portion 111. One end of the first outer arm rod 112c and the second outer arm rod 112d is rotatably connected to the base portion 111 via a second shaft 15b, and the other end of the first outer arm rod 112c and the second outer arm rod 112d is rotatably connected to the shock-absorbing top 12.

[0082] Furthermore, the first inner arm 112a is rotatably connected to the first outer arm 112c to form a fork arm structure; the second inner arm 112b is rotatably connected to the second outer arm 112d to form a fork arm structure.

[0083] Furthermore, the support plate 1123 is located between the first inner arm rod 112a and the second inner arm rod 112b, and is connected to both the first inner arm rod 112a and the second inner arm rod 112b. At this time, the two ends of the support plate 1123 are respectively connected to the first inner arm rod 112a and the second inner arm rod 112b, which makes the movement of the support plate 1123 more stable. Moreover, the support plate 1123 is located in the middle region of the movable support portion 112, which makes the elastic component 14 support the shock-absorbing top 12 more stably.

[0084] In this embodiment, combined with Figure 3 As shown, the elastic component 14 includes a fixing plate 141 and a tower spring 142;

[0085] The fixed plate 141 is in contact with the shock-absorbing top 12; the tower spring 142 is snapped into the fixed plate 141, the tower spring 142 is located between the support plate 1123 and the fixed plate 141, and can move synchronously with the fixed plate 141 relative to the support plate 1123.

[0086] In this embodiment, the movement of the elastic component 14 from the first support position to the second support position along the second direction b specifically means that the tower spring 142 moves along the second direction b from the first support position to the second support position along with the entire fixing plate 141.

[0087] Combination Figure 2 and Figure 3As shown, the seat damping system 10 also includes a drive motor 16, which is connected to the elastic component 14 to drive the elastic component 14 to move along the second direction b. Furthermore, the seat damping system 10 also includes a motor bracket connected to the damping top 12 for mounting the drive motor 16.

[0088] In this embodiment, the drive motor 16 can drive the tower spring 142 and the fixed plate 141 to move synchronously relative to the support plate 1123 and the first movable arm 1121 through the lead screw structure.

[0089] For example, the lead screw of the lead screw structure is connected to the drive motor 16, and the nut on the lead screw is fixedly connected to the fixing plate 141. When the drive motor 16 drives the lead screw to rotate, the nut can move along the axial direction of the lead screw, which in turn drives the fixing plate 141 and the tower spring 142 to move along the second direction b.

[0090] Combination Figure 1 and Figure 2 As shown, the damper 13 is hinged to the base portion 111 at the end furthest from the damping top 12, and the damper 13 and the base portion 111 form an angle. The angle value changes synchronously with the movement of the damping top 12. The seat damping system 10 also includes an angle monitoring sensor 17, which is connected to the damping top 12 and is used to monitor the change in the angle value.

[0091] In this embodiment, combined with Figure 1 and Figure 2 As shown, there are two dampers 13, one on each side along the third direction c, which effectively supports the seat cushion of the seat 20, preventing lateral torsion of the seat 20 during shock absorption and improving the passenger riding experience. Simultaneously, after the seat 20 is assembled with the seat shock absorption system 10, when the damper 13 and the base 111 form an angle, and the angle value changes synchronously with the movement of the shock absorption top 12, the angle monitoring sensor 17 can monitor the change in the angle value to determine the seat 20 height for different passengers. Then, by moving the elastic component 14 along the second direction b, the height of the seat 20 is changed to ensure that the height is consistent for passengers of different weights.

[0092] Combination Figure 2 and Figure 3 As shown, the seat shock absorption system 10 includes a shock-absorbing webbing 18, which is connected to the base portion 111 of the shock-absorbing bottom 11 and is used to connect to the support tube 223 of the seat 20. It can limit the seat cushion of the seat 20 from vibrating upwards significantly, and can also limit the seat cushion of the seat 20 from rotating and sinking during a collision.

[0093] Combination Figure 2As shown, the seat damping system 10 includes a damping rod 19, which is connected to the top of the damping system 12 and located on the side of the top of the damping system 12 facing the bottom of the damping system 11.

[0094] In this embodiment, there are four damping pins 19, which are located at the four corners of the top of the shock absorber 12. When the top of the shock absorber 12 moves downward and the damping pins 19 come into contact with the base portion 111 of the bottom of the shock absorber 11, the impact is effectively mitigated.

[0095] For example, damping material 19 can be an elastomer to achieve the purpose of cushioning and shock absorption.

[0096] In this embodiment, the damping pin 19 can be a conical or frustum-shaped structure. The cross-section of the damping pin 19 gradually decreases from the damping top 12 towards the base 111, thus allowing the damping pin 19 to gradually buffer the damping top 12 when subjected to force.

[0097] In summary, when the vibration amplitude of the seat damping system 10 is small, the damping of the seat damping system 10 can be reduced and the vibration of the whole vehicle can be absorbed by the support of the elastic component 14; when the vibration amplitude is large, the damping of the seat damping system 10 can be increased to support the seat 20 and prevent the seat 20 from vibrating excessively.

[0098] Meanwhile, the seat damping system 10 can determine the height of the seat 20 when different passengers are sitting by changing the angle of the damper 13, and then change the height of the seat 20 by moving the elastic component 14, so that the height of passengers of different weights is consistent. Furthermore, the elastic component 14 can move back and forth, and the softness and damping performance of the elastic component 14 can be adjusted by changing the position of the elastic component 14, thereby meeting the comfort needs of different passengers.

[0099] In addition, the seat damping system 10 uses a magnetorheological damper 13. This damper 13 utilizes electromagnetic reaction to control the overall damping of the seat 20 more quickly and accurately, so as to meet the damping effect of the seat 20 under different road surfaces and vehicle speeds, making the passenger ride more comfortable. Furthermore, with two dampers 13 arranged on the left and right, the damping value of the dampers 13 can respond quickly to the collision signal and adjust the damping value to the maximum to support the seat 20, thereby improving the collision strength of the seat 20 and reducing occupant injury.

[0100] Combination Figures 7 to 9 As shown, this embodiment also provides a seat 20 structure, which includes a seat 20 and a seat damping system 10 in the above embodiment. The seat 20 is located on the damping top 12 of the seat damping system 10 and is connected to the damping top 12.

[0101] Combination Figure 8 and Figure 9 As shown, the seat 20 includes a backrest frame assembly 21 and a seat cushion frame assembly 22. The backrest frame assembly 21 supports the passenger's back, and the seat cushion frame assembly 22 supports the weight of the human body and the seat 20. The seat cushion frame is connected to the seat shock absorption system 10.

[0102] Combination Figure 8 As shown, the backrest frame assembly 21 includes a U-shaped tube 211, a right backrest side panel 212, a left backrest side panel 213, a left angle adjuster 214, and a right angle adjuster 215. The U-shaped tube 211 connects the right backrest side panel 212 and the left backrest side panel 213 and supports the backrest headrest. The right backrest side panel 212 connects the U-shaped tube 211 and the right angle adjuster 215, transmitting relevant vibrations and forces. The left backrest side panel 213 connects the U-shaped tube 211 and the left angle adjuster 214, transmitting relevant vibrations and forces. The right angle adjuster 215 connects the right backrest frame to the seat cushion frame, transmitting relevant vibrations and forces. The left angle adjuster 214 connects the left backrest frame to the seat cushion frame, transmitting relevant vibrations and forces.

[0103] Combination Figure 9 As shown, the seat cushion frame includes a right seat cushion side panel 221, a left seat cushion side panel 222, a support round tube 223, a support square tube 224, and an anti-sag round tube 225. The support round tube 223, the support square tube 224, and the anti-sag round tube 225 are all connected between the right seat cushion side panel 221 and the left seat cushion side panel 222. The right seat cushion side panel 221 is connected to the backrest adjusters (left adjuster 214 and right adjuster 215), the support round tube 223, the support square tube 224, and the shock-absorbing top 12 to transmit relevant vibrations and forces. The left seat cushion side panel 222 is used to connect to the backrest adjusters (left adjuster 214 and right adjuster 215), the support round tube 223, the support square tube 224, and the shock-absorbing top 12 to transmit relevant vibrations and forces. The support tube 223 connects the right seat cushion side panel 221 and the left seat cushion side panel 222. It is connected to the base portion 111 via the shock-absorbing webbing 18, which limits the seat cushion's upward vibration and also prevents it from rotating and sinking during a collision. The support square tube 224 connects the right seat cushion side panel 221 and the left seat cushion side panel 222, providing lateral support for the seat cushion. The anti-submersion tube 225 supports the buttocks during a collision, preventing the person from submerging and causing injury.

[0104] Combination Figure 9As shown, the seat cushion frame also includes a motor mounting bracket 226, a left shock-absorbing bracket support plate 227, and a right shock-absorbing bracket support plate 228. The motor mounting bracket 226 connects the motor and the support square tube 224. The left shock-absorbing bracket support plate 227 connects the support square tube 224 and the left shock-absorbing bracket. The right shock-absorbing bracket support plate 228 connects the support square tube 224 and the right shock-absorbing bracket.

[0105] Combination Figure 1 Figure 10 As shown, this embodiment also provides a vehicle, including a body connecting bracket 30 assembly and the aforementioned seat 20 structure, wherein the seat 20 structure is connected to the body connecting bracket 30 assembly. The body connecting bracket 30 assembly is a square frame bracket, connected between the seat damping system 10 of the seat 20 structure and the floor of the vehicle cabin.

[0106] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0107] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified. The terms "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application.

[0108] The illustrative expressions of the terms used above do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of those different embodiments or examples, without contradiction.

[0109] Although embodiments of this application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of the patent coverage of this application.

Claims

1. A seat shock absorption system, characterized in that, include: Shock-absorbing bottom; The shock-absorbing top has intersecting first and second directions. The shock-absorbing top is movably connected to the shock-absorbing bottom and can rise and fall relative to the shock-absorbing bottom. The rising and falling direction of the shock-absorbing top is the same as the first direction. A damper, one end of which is connected to the damping top and is used to provide damping to the damping top; An elastic component is movably disposed between the shock-absorbing top and the shock-absorbing bottom, and the elastic component has at least a first support position and a second support position that can be switched between the shock-absorbing top and the shock-absorbing bottom; Along the first direction: the height of the first support position is not equal to the height of the second support position; When the elastic component moves from the first support position to the second support position along the second direction, the height of the shock-absorbing top along the first direction changes synchronously.

2. The seat shock absorption system according to claim 1, characterized in that, The shock-absorbing bottom includes a base portion and a movable support portion. One end of the movable support portion is rotatably connected to the base portion, and the other end of the movable support portion is rotatably connected to the shock-absorbing top portion. The movable support portion has an inclined surface relative to the shock-absorbing top portion. The first support position and the second support position are located at different heights on the inclined surface.

3. The seat shock absorption system according to claim 2, characterized in that, The seat shock absorption system includes a first shaft and a second shaft, the first shaft being slidably connected to the shock absorption top, and the second shaft being slidably connected to the base portion; The movable support includes a first movable arm, a second movable arm, and a support plate. The first movable arm is rotatably connected to the second movable arm, and the support plate is connected to the first movable arm and moves synchronously with the first movable arm. One end of the first movable arm is rotatably connected to the shock-absorbing top via the first shaft, and the other end of the first movable arm is rotatably connected to the base portion; one end of the second movable arm is rotatably connected to the base portion via the second shaft, and the other end of the second movable arm is rotatably connected to the shock-absorbing top; the inclined surface is located on the surface of the support plate facing the shock-absorbing top.

4. The seat shock absorption system according to claim 3, characterized in that, The first movable arm includes a first inner arm rod and a second inner arm rod spaced apart from each other. The second movable arm includes a first outer arm rod and a second outer arm rod spaced apart from each other. The first inner arm rod and the second inner arm rod are both located between the first outer arm rod and the second outer arm rod. One end of the first inner arm rod and the second inner arm rod are rotatably connected to the shock-absorbing top through the first shaft, and the other end of the first inner arm rod and the second inner arm rod are rotatably connected to the base portion. One end of the first outer arm rod and the second outer arm rod are rotatably connected to the base portion through the second shaft, and the other end of the first outer arm rod and the second outer arm rod are rotatably connected to the shock-absorbing top. The first inner arm rod is rotatably connected to the first outer arm rod; The second inner boom is rotatably connected to the second outer boom; The support plate is located between the first inner arm rod and the second inner arm rod, and is connected to both the first inner arm rod and the second inner arm rod.

5. The seat shock absorption system according to claim 3, characterized in that, The shock absorber top is provided with a first sliding groove, and the first shaft is located in the first sliding groove and moves within the first sliding groove; The base portion is provided with a second sliding groove, and the second shaft is located in the second sliding groove and moves within the second sliding groove.

6. The seat shock absorption system according to claim 1, characterized in that, The seat damping system also includes a drive motor, which is connected to the elastic component to drive the elastic component to move in the second direction.

7. The seat damping system according to claim 2, characterized in that, The damper is hinged to the base at one end away from the damping top, and the damper and the base form an angle, the angle value of which changes synchronously with the movement of the damping top; The seat damping system also includes an angle monitoring sensor connected to the top of the damping system to monitor changes in the included angle.

8. The seat shock absorption system according to claim 1, characterized in that, The seat shock absorption system includes a shock-absorbing webbing, which is connected to the shock-absorbing bottom, and / or; The seat damping system also includes a damping rod connected to the top of the damping system and located on the side of the top of the damping system facing the bottom of the damping system.

9. A seat structure, characterized in that, Includes a seat and a seat damping system as described in any one of claims 1-8, wherein the seat is located on and connected to the damping top.

10. A vehicle, characterized in that, It includes a body connection bracket assembly and the seat structure of claim 9, wherein the seat structure is connected to the body connection bracket assembly.

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