Seat vibration damping device and vehicle

Abstract

The application discloses a seat damping device and a vehicle. The seat damping device comprises a seat mounting platform, a base and a damping assembly. The seat mounting platform is mounted on the base and can move relative to the base in a first direction, a second direction and a third direction. The first direction, the second direction and the third direction are perpendicular to each other. The damping assembly is arranged between the seat mounting platform and the base and is used for impeding vibration transmission between the seat mounting platform and the base. According to the seat damping device, the damping assembly is arranged between the seat mounting platform and the base, and the damping assembly can impede vibration transmission between the seat mounting platform and the base in the first direction, the second direction and the third direction, so that a better damping effect is achieved, and the comfort of passengers when they ride the vehicle is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a seat vibration damping device and a vehicle. Background Technology

[0002] During vehicle operation, bumps and vibrations are inevitable due to uneven road surfaces or sudden acceleration and deceleration. These vibrations are transmitted to the occupants' bodies through the floor and seats, causing them to experience vibrations throughout their bodies. Comfortable seats contribute to improved comfort and safety for vehicle occupants. Current vehicle seat shock absorbers only provide vertical vibration damping and do not offer damping support in the direction of travel or other directions. Therefore, improvements are needed. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a seat vibration damping device, wherein the damping components can impede the transmission of vibration between the seat mounting platform and the base in a first direction, a second direction, and a third direction, thereby achieving a better vibration damping effect and improving the comfort of occupants when riding in the vehicle.

[0004] The present invention also proposes a vehicle having the above-mentioned seat damping device.

[0005] According to a first aspect of the present invention, a seat vibration damping device includes: a seat mounting platform; a base, the seat mounting platform being mounted on the base, the seat mounting platform being movable relative to the base in a first direction, a second direction, and a third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other; and a vibration damping component disposed between the seat mounting platform and the base for impeding vibration transmission between the seat mounting platform and the base.

[0006] According to an embodiment of the present invention, the seat vibration damping device has a vibration damping component disposed between the seat mounting platform and the base. The vibration damping component can impede the vibration transmission between the seat mounting platform and the base in the first direction, the second direction and the third direction, thereby achieving a better vibration damping effect and improving the comfort of passengers when riding in the vehicle.

[0007] According to some embodiments of the present invention, the device further includes: a movable platform, wherein the seat mounting platform is movably mounted on the movable platform, the movable platform is movably mounted on the base, and the vibration damping assembly includes a first vibration damping assembly and a second vibration damping assembly, wherein the first vibration damping assembly is installed between the seat mounting platform and the movable platform to impede the transmission of vibration between the seat mounting platform and the movable platform, and the second vibration damping assembly is installed between the movable platform and the base to impede the transmission of vibration between the movable platform and the base.

[0008] According to some embodiments of the present invention, the seat mounting platform is movable relative to the movable platform along the first direction, the movable platform is provided with a first slide rail extending along the first direction, the seat mounting platform is provided with a slide rod that slides in cooperation with the first slide rail, and the first damping component is disposed between the slide rod and the first slide rail.

[0009] According to some embodiments of the present invention, the inner wall of the first slide has a first groove, and the first groove and the slide rod define a first receiving cavity. The first vibration damping assembly includes: a first magnetorheological fluid disposed in the first receiving cavity; a first valve plug fixed on the slide rod for dividing the first receiving cavity into a first sub-cavity and a second sub-cavity, the first valve plug having a first through hole for communicating the first sub-cavity and the second sub-cavity; and a first electromagnetic assembly mounted on the first valve plug.

[0010] According to some embodiments of the present invention, the slide bar is provided with a first wiring channel, and the wire is adapted to run along the first wiring channel to be electrically connected to the first electromagnetic component.

[0011] According to some embodiments of the present invention, the seat vibration damping device further includes at least one guide component disposed between the seat mounting platform and the movable platform for guiding the movement direction of the seat mounting platform. The guide component includes a guide rod and a guide sleeve, one of the guide rod and the guide sleeve being disposed on the seat mounting platform, and the other of the guide rod and the guide sleeve being disposed on the movable platform.

[0012] According to some embodiments of the present invention, the movable platform is movable relative to the base along the second direction and the third direction, wherein the movable platform has a second slide extending along the second direction and a third slide extending along the third direction, the second slide and the third slide being interconnected, the seat damping device further includes a crossbar, the crossbar including a first rod and a second rod perpendicular to each other, the first rod and the second rod being respectively installed in the second slide and the third slide, wherein the first rod is slidably engaged with the base, and the engaged first rod and the base are also used to limit the position of the crossbar in the axial direction of the second rod, the diameter of the first rod is smaller than the aperture of the second slide, so that the movable platform is also adapted to move along the radial direction of the second slide.

[0013] According to some embodiments of the present invention, the base has a first mounting seat and a second mounting seat. The first mounting seat has a first mounting groove, and the second mounting seat has a second mounting groove. The two ends of the first rod are slidably engaged with the first mounting groove and the second mounting groove, respectively. The second vibration damping component is disposed between the first rod and the first mounting groove. The inner wall of the first mounting groove is provided with a second groove, and the second groove and the first rod define a second receiving cavity. The second vibration damping component includes: a second magnetorheological fluid disposed in the second receiving cavity; a second valve plug fixed on the first rod for dividing the second receiving cavity into a third sub-cavity and a fourth sub-cavity, the second valve plug being provided with a second through hole for communicating the third sub-cavity and the fourth sub-cavity; and a second electromagnetic component mounted on the second valve plug.

[0014] According to some embodiments of the present invention, the movable platform has a first groove on the side facing the first mounting base, the first groove slidingly engaging with the first mounting base to restrict the direction of movement of the movable platform, and / or, the movable platform has a second groove on the side facing the second mounting base, the second groove slidingly engaging with the second mounting base to restrict the direction of movement of the movable platform.

[0015] According to some embodiments of the present invention, the second vibration damping component is disposed between the second rod and the third slide rail, the inner wall of the third slide rail is provided with a third groove, and the third groove and the second rod define a third receiving cavity. The second vibration damping component includes: a third magnetorheological fluid disposed in the third receiving cavity; a third valve plug fixed on the second rod for dividing the third receiving cavity into a fifth sub-cavity and a sixth sub-cavity, the third valve plug being provided with a third through hole for communicating the fifth sub-cavity and the sixth sub-cavity; and a third electromagnetic component mounted on the third valve plug.

[0016] A vehicle according to a second aspect of the present invention includes a seat damping device according to the first aspect of the present invention described above.

[0017] According to the vehicle of the present invention, by providing the above-mentioned seat vibration damping device, the vibration transmitted to the occupants in the vehicle is reduced from three degrees of freedom, which can cope with more complex coupled vibration conditions, thereby achieving a better vibration damping effect and making the occupants more comfortable when riding in the vehicle.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a perspective view of a seat vibration damping device according to some embodiments of the present invention;

[0021] Figure 2 yes Figure 1 An internal 3D view of the seat vibration damping device;

[0022] Figure 3 This is a top view of a seat vibration damping device according to some embodiments of the present invention;

[0023] Figure 4 It is along Figure 3 Sectional view of line AA in the middle;

[0024] Figure 5 It is along Figure 3 Sectional view of the middle BB line;

[0025] Figure 6 This is a perspective view of a seat mounting platform according to some embodiments of the present invention;

[0026] Figure 7This is a perspective view of an active platform according to some embodiments of the present invention;

[0027] Figure 8 This is a perspective view of a base according to some embodiments of the present invention;

[0028] Figure 9 This is an exploded view of a first vibration damping component according to some embodiments of the present invention.

[0029] Figure label:

[0030] 100. Seat vibration damping device;

[0031] 10. Seat mounting platform; 11. Slide rod; 111. First wiring channel; 112. Third wire hole; 12. First mounting hole;

[0032] 20. Activity platform; 21. First slide rail; 211. First groove; 212. First receiving cavity; 213. First sub-cavity; 214. Second sub-cavity; 22. Second slide rail; 23. Third slide rail; 231. Third groove; 232. Third receiving cavity; 233. Fifth sub-cavity; 234. Sixth sub-cavity; 24. First chute; 25. Second chute; 26. Fifth wire hole;

[0033] 30. Base; 31. First mounting seat; 311. First mounting groove; 312. Second recess; 313. Second receiving cavity; 314. Third sub-cavity; 315. Fourth sub-cavity; 32. Second mounting seat; 321. Second mounting groove; 33. Second mounting hole; 34. Twelfth wire hole;

[0034] 40. Guide assembly; 41. Guide rod; 42. Guide sleeve;

[0035] 50. Cross bar; 51. First bar body; 511. Second wiring channel; 512. Eighth wire hole; 52. Second bar body; 521. Third wiring channel; 522. Eleventh wire hole; 53. Fourth wire hole;

[0036] 60. First vibration damping component; 61. First valve plug; 611. First through hole; 612. First annular groove; 613. Second wire hole; 62. First electromagnetic component; 621. First wire hole;

[0037] 70. Second vibration damping component; 71. Second valve plug; 711. Second through hole; 72. Second electromagnetic component; 73. Third valve plug; 731. Third through hole; 74. Third electromagnetic component;

[0038] 80. Vibration damping components. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] The following is for reference. Figures 1-9 A seat vibration damping device 100 according to an embodiment of the present invention is described.

[0041] Reference Figures 1-9 The seat damping device 100 includes a seat mounting platform 10, on which the seat can be mounted. For example, the seat mounting platform 10 has a plurality of spaced-apart first mounting holes 12, and screws can be inserted through the first mounting holes 12 and the mounting holes on the seat to mount the seat onto the seat mounting platform 10.

[0042] The seat damping device 100 also includes a base 30, on which a seat mounting platform 10 can be mounted. The seat mounting platform 10 is movable relative to the base 30 in a first direction, a second direction, and a third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other. For example, the first direction can be... Figure 1 The vertical direction in the middle, the second direction can be Figure 1 The left and right directions in the middle, the third direction can be Figure 1 The front and back directions in the middle.

[0043] For example, the base 30 can be provided with multiple spaced second mounting holes 33. Screws can be inserted through the second mounting holes 33 and the mounting holes on the vehicle to install the base 30 onto the vehicle. The seat can be installed onto the vehicle through the seat damping device 100.

[0044] The seat vibration damping device 100 also includes a vibration damping component 80, which is disposed between the seat mounting platform 10 and the base 30 to impede vibration transmission between the seat mounting platform 10 and the base 30. A seat is mounted on the seat mounting platform 10, and the seat is fixedly connected to the seat mounting platform 10. The vibration damping component 80 can impede vibration transmission between the seat mounting platform 10 and the base 30, and can also prevent the base 30 from transmitting vibrations to the seat. The vibration damping component 80 can impede the base 30 from transmitting vibrations to the seat in the first, second, and third directions, thereby achieving a better vibration damping effect and improving passenger comfort.

[0045] In one example, when the seat mounting platform 10 moves relative to the base 30, it can move spatially along an inclined direction. When the seat mounting platform 10 moves along this inclined direction, it can have movement components in a first direction, a second direction, and a third direction. At this time, a damping component 80 can be provided. One damping component 80 can be installed between the seat mounting platform 10 and the base 30 along the inclined direction, so that when the vehicle vibrates, the seat mounting platform 10 moves along this inclined direction to absorb some of the vibration. Furthermore, the damping component 80 can be installed between the seat mounting platform 10 and the base 30 along the inclined direction to further absorb vibration, thereby reducing the transmission of vibration from the base 30 towards the seat mounting platform 10. Additionally, it is understood that two or three damping components 80 can be provided. For example, three damping components 80 can be provided, and the three damping components 80 can respectively dampen the displacement in the first direction, the second direction, and the third direction to reduce the transmission of vibration from the base 30 towards the seat mounting platform 10. The above example does not limit the number of damping components 80.

[0046] For example, two vibration damping components 80 can be provided, both of which are installed in an inclined direction between the seat mounting platform 10 and the base 30, with the installation direction of one vibration damping component 80 perpendicular to the installation direction of the other. One vibration damping component 80 can simultaneously dampen vibrations transmitted between the seat mounting platform 10 and the base 30 in the first and second directions; the other vibration damping component 80 can simultaneously dampen vibrations of the seat mounting platform 10 and the base 30 in both the first and third directions.

[0047] For example, two vibration damping components 80 can be provided. One vibration damping component 80 can be installed in an inclined direction between the seat mounting platform 10 and the base 30, and the other vibration damping component 80 can be installed in a horizontal direction between the seat mounting platform 10 and the base 30. In one case, one vibration damping component 80 can move simultaneously along a first direction and a second direction to generate damping force in both directions; the other vibration damping component 80 can move only along a third direction to generate damping force in that direction. In another case, one vibration damping component 80 can move simultaneously along the first direction and a third direction to generate damping force in both directions; the other vibration damping component 80 can move only along the second direction to generate damping force in that direction.

[0048] According to an embodiment of the present invention, the seat vibration damping device 100 has a vibration damping component 80 disposed between the seat mounting platform 10 and the base 30. The vibration damping component 80 can impede the vibration transmission between the seat mounting platform 10 and the base 30 in the first direction, the second direction and the third direction, thereby achieving a better vibration damping effect and improving the comfort of passengers when riding in the vehicle.

[0049] According to some embodiments of the present invention, with reference to Figures 1-7 The seat damping device 100 also includes a movable platform 20, on which the seat mounting platform 10 is movably mounted and movable relative to the movable platform 20; the movable platform 20 is movably mounted on a base 30 and movable relative to the base 30. Both the seat mounting platform 10 and the movable platform 20 are movable relative to the base 30. For example, a lubricant is provided between the mating surfaces of the movable platform 20 and the base 30 to reduce the frictional force when the movable platform 20 moves relative to the base 30, making the movement of the movable platform 20 relative to the base 30 smoother.

[0050] For example, the seat mounting platform 10 can move relative to the movable platform 20 along an inclined direction, that is, the seat mounting platform 10 can move relative to the movable platform 20 along a first direction, a second direction, and a third direction. The movable platform 20 can move relative to the base 30 along an inclined direction, that is, the movable platform 20 can move relative to the base 30 along a first direction, a second direction, and a third direction. Both the seat mounting platform 10 and the movable platform 20 can move relative to the base 30 along the first direction, the second direction, and the third direction.

[0051] For example, one of the seat mounting platform 10 and the movable platform 20 moves along a first direction, while the other moves along a second and a third direction. One possibility is that the seat mounting platform 10 moves relative to the base 30 along the first direction, and the movable platform 20 moves relative to the base 30 along the second and a third direction; another possibility is that the movable platform 20 moves relative to the base 30 along the first direction, and the seat mounting platform 10 moves relative to the base 30 along the second and a third direction. When the seat is mounted on the seat mounting platform 10, the seat can move relative to the base 30 along the first, second, and third directions. Specifically, the seat mounting platform 10 moves relative to the base 30 in the vertical direction, and the movable platform 20 can move relative to the base 30 in both the front-back and left-right directions.

[0052] The vibration damping assembly 80 includes a first vibration damping assembly 60 and a second vibration damping assembly 70. The first vibration damping assembly 60 is installed between the seat mounting platform 10 and the movable platform 20 to impede the transmission of vibrations between the seat mounting platform 10 and the movable platform 20. When the vehicle is in motion, the vehicle may vibrate, which in turn will cause the seat to vibrate. By installing the first vibration damping assembly 60 between the seat mounting platform 10 and the movable platform 20, the first vibration damping assembly 60 can reduce the vibration of the seat in a first direction, a second direction, or a third direction, thereby impeding the transmission of vibrations between the seat mounting platform 10 and the movable platform 20 in the first direction, a second direction, or a third direction.

[0053] The second damping component 70 is installed between the movable platform 20 and the base 30 to impede the transmission of vibrations between the movable platform 20 and the base 30. When the vehicle is in motion, the vehicle may vibrate, which in turn causes the seat to vibrate. The second damping component 70, installed between the seat mounting platform 10 and the movable platform 20, can reduce seat vibrations in a first, second, or third direction, thereby impeding the transmission of vibrations between the seat mounting platform 10 and the movable platform 20 in the first, second, or third direction.

[0054] According to some embodiments of the present invention, with reference to Figures 1-7 The seat mounting platform 10 is movable relative to the movable platform 20 along a first direction. The movable platform 20 is provided with a first slide rail 21 extending along the first direction. The seat mounting platform 10 is provided with a slide rod 11 extending along the first direction. The slide rod 11 slides in cooperation with the first slide rail 21, and the slide rod 11 can move along the first slide rail 21 in the first direction, thereby driving the seat mounting platform 10 to move in the first direction. For example, the first slide rail 21 is fitted on the outside of the slide rod 11, and a lubricant is provided on the mating surface between the slide rod 11 and the first slide rail 21 to reduce the friction when the slide rod 11 moves relative to the first slide rail 21, making the movement of the slide rod 11 relative to the first slide rail 21 smoother.

[0055] The first vibration damping component 60 is disposed between the slide rod 11 and the first slide rail 21. The space between the slide rod 11 and the first slide rail 21 is sufficient to facilitate the arrangement of the first vibration damping component 60. With the cooperation of the slide rod 11 and the first slide rail 21, the seat mounting platform 10 can move along the first direction, and the first vibration damping component 60 can play a better vibration damping effect in the first direction.

[0056] According to some embodiments of the present invention, with reference to Figures 1-9The inner wall of the first slide rail 21 has a first groove 211, which defines a first receiving cavity 212 between the first groove 211 and the slide rod 11. The first vibration damping assembly 60 includes a first magnetorheological fluid, a first valve plug 61, and a first electromagnetic assembly 62, with the first magnetorheological fluid disposed within the first receiving cavity 212. For example, a sealing measure is provided at the mating surface between the slide rod 11 and the first slide rail 21 to seal the gap between the mating surfaces, preventing the first magnetorheological fluid from leaking out from the gap between the slide rod 11 and the first slide rail 21.

[0057] The first valve plug 61 is fixed to the slide rod 11 and is used to divide the first receiving cavity 212 into a first sub-cavity 213 and a second sub-cavity 214. The first valve plug 61 is provided with a first through hole 611, which connects the first sub-cavity 213 and the second sub-cavity 214. The first magnetorheological fluid can flow between the first sub-cavity 213 and the second sub-cavity 214 through the first through hole 611. The first electromagnetic component 62 is mounted on the first valve plug 61. For example, the first electromagnetic component 62 includes a wire. A first annular groove 612 is formed on the first valve plug 61, and the wire is wound in the first annular groove 612. A lubricant and sealing measures are also provided between the inner wall of the first slide 21 and the first electromagnetic component 62.

[0058] Figures 4-5 The dashed box of the arrow in the first damping component 60 is a schematic diagram of the magnetic field generated by the first electromagnetic component 62. When the seat vibrates in the first direction, the current of the first electromagnetic component 62 can be changed, thereby changing the magnetic field strength in the area where the first magnetorheological fluid is located in the first through hole 611. This causes the viscosity of the first magnetorheological fluid flowing through the first through hole 611 to change, and thus changes the flow rate of the first magnetorheological fluid. The seat mounting platform 10 is movable in the first direction, which can further change the flow rate of the first magnetorheological fluid. This can change the rigidity and damping of the vibration of the seat in the first direction transmitted to the occupants in the vehicle, thereby reducing the vibration of the seat in the first direction.

[0059] For example, a first magnetorheological fluid is a material whose rheological properties can change rapidly by an applied magnetic field. It typically consists of magnetic soft iron particles, a lubricant, and a stabilizer. In the absence of a magnetic field, the magnetic soft iron particles flow irregularly and freely, exhibiting Newtonian fluid characteristics and low viscosity. When a magnetic field is applied to the first magnetorheological fluid, the magnetic soft iron particles begin to align in a chain-like pattern within a very short time, causing a sudden increase in viscosity and a decrease in fluidity. As the magnetic field strength continues to increase, the viscosity of the first magnetorheological fluid increases further, and its fluidity decreases further, approaching a semi-solid or even solid state.

[0060] According to some embodiments of the present invention, with reference to Figures 1-7The slide bar 11 is provided with a first wiring channel 111, and the wire is adapted to run along the first wiring channel 111 to be electrically connected to the first electromagnetic component 62, so as to facilitate the electrical connection between the wire and the first electromagnetic component 62; the current of the first electromagnetic component 62 can also be controlled by the wire to change the viscosity of the first magnetorheological fluid to reduce the vibration of the seat in the first direction.

[0061] In one example, the first electromagnetic component 62 has a first wire hole 621, the first valve plug 61 has a second wire hole 613, the slide rod 11 has a third wire hole 112, which can communicate with the first wiring channel 111, the cross rod 50 has a fourth wire hole 53, which can communicate with the first wiring channel 111, and the movable platform 20 also has a fifth wire hole 26. The wires of the first electromagnetic component 62 can be electrically connected to the control module in sequence through the first wire hole 621, the second wire hole 613, the third wire hole 112, the first wiring channel 111, the fourth wire hole 53, and the fifth wire hole 26. The control module can control the current of the first electromagnetic component 62.

[0062] According to some embodiments of the present invention, with reference to Figures 1-7 The seat vibration damping device 100 also includes at least one guide assembly 40. The seat vibration damping device 100 may include one guide assembly 40 or multiple guide assemblies 40. The guide assembly 40 is disposed between the seat mounting platform 10 and the movable platform 20 to guide the movement direction of the seat mounting platform 10. The guide assembly 40 includes a guide rod 41 and a guide sleeve 42. One of the guide rod 41 and the guide sleeve 42 is disposed on the seat mounting platform 10, and the other of the guide rod 41 and the guide sleeve 42 is disposed on the movable platform 20. Alternatively, the guide rod 41 may be disposed on the seat mounting platform 10, and the guide sleeve 42 may be disposed on the movable platform 20; or the guide sleeve 42 may be disposed on the seat mounting platform 10, and the guide rod 41 may be disposed on the movable platform 20.

[0063] With the cooperation of guide rod 41 and guide sleeve 42, the seat mounting platform 10 can move smoothly along the first direction, preventing the seat mounting platform 10 from tilting or moving in other directions of freedom. For example, the guide sleeve 42 can be sleeved on the outside of the guide rod 41. The inner wall surface of the guide sleeve 42 is a smooth surface, and a lubricant is provided between the guide rod 41 and the guide sleeve 42. This can reduce the friction between the guide rod 41 and the guide sleeve 42 when they move relative to each other, making the movement between the guide rod 41 and the guide sleeve 42 smoother, and thus making the seat mounting platform 10 move more smoothly.

[0064] According to some embodiments of the present invention, with reference to Figures 1-9The movable platform 20 is movable relative to the base 30, and can move along a second direction and a third direction relative to the base 30. The movable platform 20 has a second slide rail 22 extending along the second direction and a third slide rail 23 extending along the third direction, the second slide rail 22 and the third slide rail 23 being perpendicular to each other and interconnected. The seat vibration damping device 100 also includes a crossbar 50, which includes a first rod 51 and a second rod 52, the first rod 51 and the second rod 52 being perpendicular to each other, and the first rod 51 and the second rod 52 being respectively installed in the second slide rail 22 and the third slide rail 23.

[0065] The first rod 51 is slidably engaged with the base 30 and is slidable relative to the base 30. The first rod 51 can slide along its axial direction. The second rod 52 is tightly engaged with the third slide rail 23. When the first rod 51 slides, it drives the second rod 52 to slide. When the second rod 52 slides, it drives the movable platform 20 to slide along the axial direction of the first rod 51. That is, when the first rod 51 slides relative to the base 30, it drives the movable platform 20 to slide. For example, when the seat damping device 100 is installed on the vehicle, the sliding direction of the first rod 51 is the second direction. When the first rod 51 slides in the second direction, it drives the movable platform 20 to slide in the second direction.

[0066] Furthermore, the first rod 51 and the base 30, after being engaged, also serve to limit the position of the cross rod 50 in the axial direction of the second rod 52. The diameter of the first rod 51 is smaller than the aperture of the second slide rail 22, so that the movable platform 20 is also suitable for moving in the radial direction of the second slide rail 22, which is the same as the radial direction of the first rod 51. For example, when the seat damping device 100 is installed on the vehicle, the radial direction of the second slide rail 22 is the third direction, and the movable platform 20 can also slide in the third direction.

[0067] According to some embodiments of the present invention, with reference to Figures 1-8 The base 30 has a first mounting seat 31 and a second mounting seat 32. The first mounting seat 31 has a first mounting groove 311, and the second mounting seat 32 has a second mounting groove 321. The two ends of the first rod 51 slide in contact with the first mounting groove 311 and the second mounting groove 321, respectively. For example, a lubricant is provided on the mating surfaces of the first rod 51 with the first mounting groove 311 and the second mounting groove 321 to reduce the friction when the first rod 51 slides relative to the first mounting groove 311 and the second mounting groove 321, making the sliding of the first rod 51 relative to the first mounting groove 311 and the second mounting groove 321 smoother. The second vibration damping component 70 is disposed between the first rod 51 and the first mounting groove 311, with sufficient space between them to facilitate the arrangement of the second vibration damping component 70.

[0068] The inner wall of the first mounting groove 311 is provided with a second groove 312, which defines a second receiving cavity 313 between the second groove 312 and the first rod 51. The second vibration damping assembly 70 includes a second magnetorheological fluid, a second valve plug 71, and a second electromagnetic assembly 72, with the second magnetorheological fluid disposed within the second receiving cavity 313. For example, a sealing measure is provided on the mating surface between the first rod 51 and the first mounting groove 311 to seal the gap between them, preventing the second magnetorheological fluid from leaking out from the gap between the first rod 51 and the first mounting groove 311.

[0069] The second valve plug 71 is fixed to the first rod 51 and is used to divide the second receiving cavity 313 into a third sub-cavity 314 and a fourth sub-cavity 315. The second valve plug 71 is provided with a second through hole 711, which connects the third sub-cavity 314 and the fourth sub-cavity 315. The second magnetorheological fluid can flow between the third sub-cavity 314 and the fourth sub-cavity 315 through the second through hole 711. The second electromagnetic component 72 is mounted on the second valve plug 71. For example, the second electromagnetic component 72 includes a wire. A second annular groove is formed on the second valve plug 71, and the wire is wound in the second annular groove. A lubricant and sealing measures are also provided between the inner wall of the first mounting groove 311 and the second electromagnetic component 72.

[0070] Figure 5 The dashed box of the arrow in the second damping component 70 is a schematic diagram of the magnetic field generated by the second electromagnetic component 72. When the seat vibrates along the axial direction of the first rod 51, the current of the second electromagnetic component 72 is changed, thereby changing the magnetic field strength in the area where the second magnetorheological fluid is located in the second through hole 711. This causes a change in the viscosity of the second magnetorheological fluid flowing through the second through hole 711, which in turn changes the flow rate of the second magnetorheological fluid. When the first rod 51 slides, it can drive the movable platform 20 to slide along the axial direction of the first rod 51. The damping of the sliding along the axial direction of the first rod 51 is the damping of the second damping component 70 due to the flow resistance of the second magnetorheological fluid. Therefore, by changing the viscosity of the second magnetorheological fluid flowing through the second through hole 711, the rigidity and damping of the seat along the axial direction of the first rod 51 are changed, thereby damping the vibration of the first rod 51 in the axial direction.

[0071] In one example, the first rod 51 is provided with a second wiring channel 511, and the wires are adapted to run along the second wiring channel 511 to be electrically connected to the second electromagnetic component 72. The second electromagnetic component 72 is provided with a sixth wire hole, the second valve plug 71 is provided with a seventh wire hole, and the first rod 51 is provided with an eighth wire hole 512, which can communicate with the second wiring channel 511. The wires of the second electromagnetic component 72 can be electrically connected to the control module in sequence through the sixth wire hole, the seventh wire hole, the eighth wire hole 512, the second wiring channel 511, and the fifth wire hole 26. The control module can control the magnitude of the current in the second electromagnetic component 72.

[0072] According to some embodiments of the present invention, with reference to Figures 1-8 The movable platform 20 has a first sliding groove 24 on the side facing the first mounting base 31. The first sliding groove 24 is slidably engaged with the first mounting base 31 to limit the movement direction of the movable platform 20. The first mounting base 31 has a first mounting groove 311. One end of the first rod 51 is slidably engaged with the first mounting groove 311, so that the movable platform 20 can slide along the axial direction of the first rod 51.

[0073] According to some embodiments of the present invention, with reference to Figures 1-8 The movable platform 20 has a second sliding groove 25 on the side facing the second mounting base 32. The second sliding groove 25 is slidably engaged with the second mounting base 32 to limit the movement direction of the movable platform 20. The second mounting base 32 has a second mounting groove 321. One end of the first rod 51 is slidably engaged with the second mounting groove 321, so that the movable platform 20 can slide along the axial direction of the first rod 51.

[0074] According to some embodiments of the present invention, with reference to Figures 1-8 The second vibration damping component 70 is also disposed between the second rod 52 and the third slide rail 23. For example, a lubricant is provided on the mating surface of the second rod 52 and the third slide rail 23 to reduce the frictional force when the second rod 52 slides relative to the third slide rail 23, making the movement of the second rod 52 relative to the third slide rail 23 smoother. The inner wall of the third slide rail 23 is provided with a third groove 231, which defines a third receiving cavity 232 between the third groove 231 and the second rod 52. The second vibration damping component 70 includes a third magnetorheological fluid, a third valve plug 73, and a third electromagnetic component 74. The third magnetorheological fluid is disposed in the third receiving cavity 232. For example, a sealing measure is provided on the mating surface of the second rod 52 and the third slide rail 23 to seal the gap between the mating surfaces of the second rod 52 and the third slide rail 23, preventing the third magnetorheological fluid from leaking out from the gap between the second rod 52 and the third slide rail 23.

[0075] The third valve plug 73 is fixed to the second rod 52 and is used to divide the third receiving cavity 232 into a fifth sub-cavity 233 and a sixth sub-cavity 234. The third valve plug 73 is provided with a third through hole 731, which connects the fifth sub-cavity 233 and the sixth sub-cavity 234. The third magnetorheological fluid can flow between the fifth sub-cavity 233 and the sixth sub-cavity 234 through the third through hole 731. The third electromagnetic component 74 is mounted on the third valve plug 73. For example, the third electromagnetic component 74 includes a wire. A third annular groove is formed on the third valve plug 73, and the wire is wound in the third annular groove. Lubricant and sealing measures are also provided between the inner wall of the third slide 23 and the third electromagnetic component 74.

[0076] When the seat vibrates radially along the second slide 22, the magnitude of the current in the third electromagnetic component 74 is changed, thereby altering the magnetic field strength in the region where the third magnetorheological fluid is located within the third through hole 731. This changes the viscosity of the third magnetorheological fluid flowing through the third through hole 731. At this time, the cross rod 50 cannot slide radially along the second slide 22 due to the constraint of the base 30. However, because the diameter of the first rod 51 is smaller than the aperture of the second slide 22, the movable platform 20 can move radially along the second slide 22. The damping of its sliding along the second slide 22 is the damping of the second damping component 70 due to the flow resistance of the third magnetorheological fluid. Therefore, by changing the viscosity of the third magnetorheological fluid flowing through the third through hole 731, the rigidity and damping of the seat's vibration along the second slide 22 are changed, thereby reducing vibration in the radial direction of the second slide 22.

[0077] In one example, the second rod 52 is provided with a third wiring channel 521, and the wires are adapted to run along the third wiring channel 521 to be electrically connected to the third electromagnetic component 74. The third electromagnetic component 74 is provided with a ninth wire hole, the third valve plug 73 is provided with a tenth wire hole, and the second rod 52 is provided with an eleventh wire hole 522, which can communicate with the third wiring channel 521. The movable platform 20 is also provided with a twelfth wire hole 34. The wires of the third electromagnetic component 2 can be electrically connected to the control module in sequence through the ninth wire hole, the tenth wire hole, the eleventh wire hole 522, the third wiring channel 521, and the twelfth wire hole 34. The control module can control the current of the third electromagnetic component 74.

[0078] The vehicle is equipped with vibration sensors to monitor the real-time vibration characteristics of the seats, including amplitude, frequency, and direction. The real-time vibration information detected by the sensors is transmitted to the control module. After analyzing and processing this information, the control module controls the first damping component 60 and the second damping component 70 according to the current real-time vibration reduction requirements. It changes the current in the wires of the first electromagnetic component 62, the second electromagnetic component 72, and the third electromagnetic component 74, thereby altering the magnetic field strength in the region where the magnetorheological fluid through-holes are located. This changes the fluid characteristics of the magnetorheological fluid flowing through the through-holes, allowing for real-time control of the damping along each component's axial direction. This enables real-time control of the damping stiffness and damping in three degrees of freedom.

[0079] A vehicle according to a second aspect of the present invention includes a seat damping device 100 according to the first aspect of the present invention described above.

[0080] According to the vehicle of the present invention, by providing the above-mentioned seat vibration damping device 100, the vibration transmitted to the occupants in the vehicle is reduced from three degrees of freedom, which can cope with more complex coupled vibration conditions, thereby achieving a better vibration damping effect and making the occupants more comfortable when riding in the vehicle.

[0081] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0082] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 invention according to the specific circumstances.

[0083] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples," 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 the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0084] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A seat damping device characterized by comprising: The utility model relates to a seat damping device, comprising: a seat mounting platform; a base, the seat mounting platform is installed on the base, the seat mounting platform can be moved relative to the base in the first direction, the second direction and the third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other; a damping assembly is arranged between the seat mounting platform and the base, which is used to hinder the vibration transmission between the seat mounting platform and the base; a movable platform, the seat mounting platform is movably installed on the movable platform, the movable platform is movably installed on the base, the damping assembly comprises a first damping assembly and a second damping assembly, the first damping assembly is installed between the seat mounting platform and the movable platform, which is used to hinder the vibration transmission between the seat mounting platform and the movable platform, the second damping assembly is installed between the movable platform and the base, which is used to hinder the vibration transmission between the movable platform and the base, the movable platform can be moved relative to the base along the second direction and the third direction, wherein the movable platform has a second sliding channel extending along the second direction and a third sliding channel extending along the third direction, the second sliding channel and the third sliding channel are communicated with each other, the seat damping device further comprises a cross rod, the cross rod comprises a first rod body and a second rod body which are perpendicular to each other, the first rod body and the second rod body are respectively installed in the second sliding channel and the third sliding channel, wherein the first rod body is in sliding fit with the base, and the first rod body after fit is further used to limit the position of the cross rod in the axial direction of the second rod body, the diameter of the first rod body is smaller than the hole diameter of the second sliding channel, so that the movable platform is also adapted to move along the radial direction of the second sliding channel.

2. The seat damping device according to claim 1, characterized by the seat mounting platform can be moved relative to the movable platform along the first direction, the movable platform is provided with a first sliding channel extending along the first direction, the seat mounting platform is provided with a sliding rod in sliding fit with the first sliding channel, and the first damping assembly is arranged between the sliding rod and the first sliding channel.

3. The seat damping device according to claim 2, characterized by the inner wall of the first sliding channel has a first groove, and a first accommodating cavity is defined between the first groove and the sliding rod, and the first damping assembly comprises: a first magnetorheological fluid arranged in the first accommodating cavity; a first valve plug fixed on the sliding rod, used to divide the first accommodating cavity into a first sub-cavity and a second sub-cavity, the first valve plug is provided with a first through hole for communicating the first sub-cavity and the second sub-cavity; a first electromagnetic assembly installed on the first valve plug.

4. The seat damping device according to claim 3, characterized by the sliding rod is provided with a first wiring channel, and a wire is adapted to be wired along the first wiring channel to be electrically connected with the first electromagnetic assembly.

5. The seat damping device according to claim 2, characterized by Further comprising at least one guide assembly arranged between the seat mounting platform and the movable platform for guiding the moving direction of the seat mounting platform, the guide assembly comprising a guide rod and a guide sleeve, one of the guide rod and the guide sleeve being arranged on the seat mounting platform, the other of the guide rod and the guide sleeve being arranged on the movable platform.

6. The seat damping device according to claim 1, characterized by The base has a first mounting seat and a second mounting seat, the first mounting seat has a first mounting slot, the second mounting seat has a second mounting slot, and the two ends of the first rod body are respectively in sliding fit with the first mounting slot and the second mounting slot, wherein, The second damping assembly is arranged between the first rod body and the first mounting slot, the inner wall of the first mounting slot is provided with a second groove, and the second groove and the first rod body define a second accommodating cavity, the second damping assembly comprises: Second magnetorheological fluid arranged in the second accommodating cavity; A second valve plug fixed on the first rod body for separating the second accommodating cavity into a third sub-cavity and a fourth sub-cavity, the second valve plug is provided with a second through hole for communicating the third sub-cavity and the fourth sub-cavity; A second electromagnetic assembly mounted on the second valve plug.

7. The seat damping device according to claim 6, wherein, The side of the movable platform facing the first mounting seat has a first sliding groove in sliding fit with the first mounting seat to limit the moving direction of the movable platform, and / or The side of the movable platform facing the second mounting seat has a second sliding groove in sliding fit with the second mounting seat to limit the moving direction of the movable platform.

8. The seat damping device according to claim 1, characterized by The second damping assembly is arranged between the second rod body and the third sliding groove, the inner wall of the third sliding groove is provided with a third groove, and the third groove and the second rod body define a third accommodating cavity, the second damping assembly comprises: Third magnetorheological fluid arranged in the third accommodating cavity; A third valve plug fixed on the second rod body for separating the third accommodating cavity into a fifth sub-cavity and a sixth sub-cavity, the third valve plug is provided with a third through hole for communicating the fifth sub-cavity and the sixth sub-cavity; A third electromagnetic assembly mounted on the third valve plug.

9. A vehicle characterized by comprising: The seat damping device according to any one of claims 1-8.

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