Seat damping device and vehicle

Abstract

The invention 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, the seat mounting platform can move in a first direction, a second direction and a third direction relative to the base, and the first direction, the second direction and the third direction are perpendicular to one another; the vibration reduction assembly is arranged between the seat installation platform and the base and used for blocking vibration transmission between the seat installation platform and the base. According to the seat damping device provided by the embodiment of the invention, the damping assembly is arranged between the seat mounting platform and the base, and the damping assembly can hinder 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 realized, and the comfort of passengers taking a vehicle is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a seat vibration reduction device and a vehicle. Background Art

[0002] When a vehicle is driving, it is inevitable that there will be some bumps due to uneven roads or sudden acceleration and deceleration, which will cause the body vibration, which will be transmitted to the body of the occupants in the vehicle through the vehicle floor and seat cushions, causing the whole body vibration of the occupants in the vehicle. For the occupants in the vehicle, comfortable seats help improve the comfort and safety of riding in the vehicle. The current vehicle seat shock absorber can only provide vibration reduction in the vertical direction, and cannot provide vibration reduction support in the vehicle driving direction and other directions. Therefore, improvement is needed. Summary of the invention

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

[0004] The present invention also provides a vehicle having the seat vibration reduction device.

[0005] A seat vibration reduction device according to an embodiment of the first aspect of the present invention comprises: a seat mounting platform; a base, the seat mounting platform is mounted on the base, the seat mounting platform can move in a first direction, a second direction and a third direction relative to the base, wherein the first direction, the second direction and the third direction are perpendicular to each other; a vibration reduction assembly, the vibration reduction assembly is arranged between the seat mounting platform and the base, and is used to hinder the transmission of vibration between the seat mounting platform and the base.

[0006] According to the seat vibration reduction device of an embodiment of the present invention, the vibration reduction component is arranged between the seat mounting platform and the base. The vibration reduction component can hinder 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 reduction effect and improving the comfort of the occupants when riding in the vehicle.

[0007] According to some embodiments of the present invention, it also includes: a movable platform, the seat mounting platform can be movably mounted on the movable platform, the movable platform can be movably mounted on the base, the vibration damping assembly includes a first vibration damping assembly and a second vibration damping assembly, the first vibration damping assembly is installed between the seat mounting platform and the movable platform, and is used to hinder 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, and is used to hinder the transmission of vibration between the movable platform and the base.

[0008] According to some embodiments of the present invention, the seat mounting platform can move along the first direction relative to the movable platform, the movable platform is provided with a first slide extending along the first direction, the seat mounting platform is provided with a sliding rod slidably matched with the first slide, and the first shock absorbing assembly is arranged between the sliding rod and the first slide.

[0009] According to some embodiments of the present invention, the inner wall of the first slideway has a first groove, and a first accommodating chamber is defined between the first groove and the slide rod. The first vibration damping assembly includes: a first magnetorheological fluid, which is arranged in the first accommodating chamber; a first valve plug, which is fixed on the slide rod and is used to separate the first accommodating chamber into a first sub-chamber and a second sub-chamber, and the first valve plug is provided with a first through hole, which is used to connect the first sub-chamber and the second sub-chamber; and a first electromagnetic assembly, which is installed on the first valve plug.

[0010] According to some embodiments of the present invention, a first wiring channel is provided on the sliding rod, and the wire is suitable for routing 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 reduction device also includes at least one guide assembly, which is arranged between the seat mounting platform and the movable platform and is used to guide the movement direction of the seat mounting platform, and the guide assembly includes a guide rod and a guide sleeve, one of the guide rod and the guide sleeve is arranged on the seat mounting platform, and the other of the guide rod and the guide sleeve is arranged on the movable platform.

[0012] According to some embodiments of the present invention, the movable platform can move along the second direction and the third direction relative to the base, 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 are connected to each other, the seat vibration reduction device also includes a cross bar, the cross bar includes a first rod body and a second rod body perpendicular to each other, the first rod body and the second rod body are respectively installed in the second slide and the third slide, wherein the first rod body is slidably matched with the base, and the matched first rod body and the base are also used to limit the position of the cross bar in the axial direction of the second rod body, and the diameter of the first rod body is smaller than the aperture of the second slide, so that the movable platform is also suitable for moving in the radial direction of the second slide.

[0013] According to some embodiments of the present invention, the base is provided with a first mounting seat and a second mounting seat, the first mounting seat has a first mounting groove, the second mounting seat has a second mounting groove, the two ends of the first rod body are respectively slidably matched with the first mounting groove and the second mounting groove, wherein the second vibration damping assembly is arranged between the first rod body and the first mounting groove, the inner wall of the first mounting groove is provided with a second groove, and a second accommodating chamber is defined between the second groove and the first rod body, and the second vibration damping assembly includes: a second magnetorheological fluid, the second magnetorheological fluid is arranged in the second accommodating chamber; a second valve plug, the second valve plug is fixed on the first rod body, and is used to separate the second accommodating chamber into a third sub-chamber and a fourth sub-chamber, the second valve plug is provided with a second through hole, and the second through hole is used to connect the third sub-chamber and the fourth sub-chamber; a second electromagnetic assembly, the second electromagnetic assembly is installed on the second valve plug.

[0014] According to some embodiments of the present invention, the side of the movable platform facing the first mounting seat has a first sliding groove, and the first sliding groove slidably cooperates with the first mounting seat to limit the movement direction of the movable platform, and / or the side of the movable platform facing the second mounting seat has a second sliding groove, and the second sliding groove slidably cooperates with the second mounting seat to limit the movement direction of the movable platform.

[0015] According to some embodiments of the present invention, the second vibration damping assembly is arranged between the second rod body and the third slide, the inner wall of the third slide is provided with a third groove, and a third accommodating chamber is defined between the third groove and the second rod body, and the second vibration damping assembly includes: a third magnetorheological fluid, the third magnetorheological fluid is arranged in the third accommodating chamber; a third valve plug, the third valve plug is fixed on the second rod body, and is used to separate the third accommodating chamber into a fifth sub-chamber and a sixth sub-chamber, the third valve plug is provided with a third through hole, and the third through hole is used to connect the fifth sub-chamber and the sixth sub-chamber; a third electromagnetic assembly, the third electromagnetic assembly is installed on the third valve plug.

[0016] A vehicle according to an embodiment of a second aspect of the present invention comprises the seat vibration reduction device according to an embodiment of the first aspect of the present invention.

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

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0021] Figure 2 yes Figure 1 An internal stereogram of a seat vibration reduction device in FIG.

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

[0023] Figure 4 is along Figure 3 Sectional view along line AA;

[0024] Figure 5 is along Figure 3 Sectional view along the midline BB;

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

[0026] Figure 7is a stereoscopic diagram of a movable platform according to some embodiments of the present invention;

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

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

[0029] Reference numerals:

[0030] 100. Seat vibration reduction device;

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

[0032] 20, movable platform; 21, first slide; 211, first groove; 212, first accommodating chamber; 213, first sub-chamber; 214, second sub-chamber; 22, second slide; 23, third slide; 231, third groove; 232, third accommodating chamber; 233, fifth sub-chamber; 234, sixth sub-chamber; 24, first slide; 25, second slide; 26, fifth wire hole;

[0033] 30, base; 31, first mounting seat; 311, first mounting groove; 312, second groove; 313, second accommodating 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 rod; 51, first rod body; 511, second wiring channel; 512, eighth wire hole; 52, second rod body; 521, third wiring channel; 522, eleventh wire hole; 53, fourth wire hole;

[0036] 60, first vibration reduction assembly; 61, first valve plug; 611, first through hole; 612, first annular groove; 613, second wire hole; 62, first electromagnetic assembly; 621, first wire hole;

[0037] 70, second vibration reduction assembly; 71, second valve plug; 711, second through hole; 72, second electromagnetic assembly; 73, third valve plug; 731, third through hole; 74, third electromagnetic assembly;

[0038] 80. Vibration reduction assembly. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] Reference below Figure 1-Figure 9 A seat vibration reduction device 100 according to an embodiment of the present invention will be described.

[0041] Reference Figure 1-Figure 9 The seat vibration reduction device 100 includes a seat mounting platform 10, and the seat can be mounted on the seat mounting platform 10. For example, the seat mounting platform 10 has a plurality of first mounting holes 12 arranged at intervals, and screws can be used to penetrate the first mounting holes 12 and the mounting holes on the seat to mount the seat on the seat mounting platform 10.

[0042] The seat vibration reduction device 100 further includes a base 30, on which the seat mounting platform 10 can be mounted, and the seat mounting platform 10 can move 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 up and down directions in the second direction can be Figure 1 The left and right directions in the third direction can be Figure 1 The front-to-back direction.

[0043] For example, a plurality of second mounting holes 33 arranged at intervals may be provided on the base 30, and screws may be passed through the second mounting holes 33 and the mounting holes on the vehicle to mount the base 30 on the vehicle, and the seat may be mounted on the vehicle through the seat vibration reduction device 100.

[0044] The seat vibration reduction device 100 further includes a vibration reduction assembly 80, which is arranged between the seat mounting platform 10 and the base 30, and is used to prevent 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 and the seat mounting platform 10 are fixedly connected. The vibration reduction assembly 80 can prevent vibration transmission between the seat mounting platform 10 and the base 30, and the vibration reduction assembly 80 can prevent the base 30 from transmitting vibration to the seat. The vibration reduction assembly 80 can prevent the base 30 from transmitting vibration to the seat in the first direction, the second direction, and the third direction, thereby achieving a better vibration reduction effect and improving the comfort of the occupant when riding in the vehicle.

[0045] In one example, when the seat mounting platform 10 moves relative to the base 30, it can move in an inclined direction in space. When the seat mounting platform 10 moves in this inclined direction, it can have movement components in the first direction, the second direction and the third direction. At this time, one vibration reduction assembly 80 can be provided, and one vibration reduction assembly 80 can be installed between the seat mounting platform 10 and the base 30 in the inclined direction, so that when the vehicle vibrates, the seat mounting platform 10 moves in this inclined direction to absorb part of the vibration. In addition, the vibration reduction assembly 80 can be installed between the seat mounting platform 10 and the base 30 in the inclined direction to further absorb the vibration, thereby reducing the transmission of the vibration of the base 30 toward the seat mounting platform 10. In addition, it can be understood that two or three vibration reduction assemblies 80 can be provided, for example, three vibration reduction assemblies 80 are provided, and the three vibration reduction assemblies 80 can respectively reduce the displacement in the first direction, the second direction and the third direction, so as to reduce the transmission of the vibration of the base 30 toward the seat mounting platform 10. The above example does not limit the number of vibration reduction assemblies 80.

[0046] For another example, two vibration reduction assemblies 80 may be provided, and both vibration reduction assemblies 80 are installed between the seat mounting platform 10 and the base 30 along the tilting direction, and the installation direction of one vibration reduction assembly 80 is perpendicular to the installation direction of the other vibration reduction assembly 80. One vibration reduction assembly 80 can simultaneously reduce vibrations transmitted between the seat mounting platform 10 and the base 30 in the first direction and the second direction; the other vibration reduction assembly 80 can simultaneously reduce vibrations between the seat mounting platform 10 and the base 30 in the first direction and the third direction.

[0047] For another example, two vibration-damping assemblies 80 may be provided, one vibration-damping assembly 80 may be installed between the seat mounting platform 10 and the base 30 in the inclined direction, and the other vibration-damping assembly 80 may be installed between the seat mounting platform 10 and the base 30 in the horizontal direction. In one case, one vibration-damping assembly 80 may move in the first direction and the second direction at the same time to generate vibration-damping forces in the first direction and the second direction at the same time; the other vibration-damping assembly 80 may move only in the third direction to generate vibration-damping forces in the third direction; in another case, one vibration-damping assembly 80 may move in the first direction and the third direction at the same time to generate vibration-damping forces in the first direction and the third direction at the same time; the other vibration-damping assembly 80 may move only in the second direction to generate vibration-damping forces in the second direction.

[0048] According to the seat vibration reduction device 100 of the embodiment of the present invention, the vibration reduction assembly 80 is arranged between the seat mounting platform 10 and the base 30. The vibration reduction assembly 80 can hinder 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 reduction effect and improving the comfort of the occupants when riding in the vehicle.

[0049] According to some embodiments of the present invention, referring to Figure 1-Figure 7 The seat vibration reduction device 100 further includes a movable platform 20, on which the seat mounting platform 10 is movably mounted, and the seat mounting platform 10 can move relative to the movable platform 20; the movable platform 20 is movably mounted on the base 30, and the movable platform 20 can move relative to the base 30, and both the seat mounting platform 10 and the movable platform 20 can move relative to the base 30. For example, a lubricant is provided between the mating surfaces of the movable platform 20 and the base 30, which can reduce the friction force when the movable platform 20 moves relative to the base 30, so that the movable platform 20 moves relative to the base 30 more smoothly.

[0050] For example, the seat mounting platform 10 can move along the tilting direction relative to the movable platform 20, that is, the seat mounting platform 10 can move along the first direction, the second direction, and the third direction relative to the movable platform 20. The movable platform 20 can move along the tilting direction relative to the base 30, that is, the movable platform 20 can move along the first direction, the second direction, and the third direction relative to the base 30, and 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 another example, one of the seat mounting platform 10 and the movable platform 20 moves in a first direction, and the other of the seat mounting platform 10 and the movable platform 20 moves in a second direction and a third direction. One situation may be that the seat mounting platform 10 moves in a first direction relative to the base 30, and the movable platform 20 moves in a second direction and a third direction relative to the base 30; another situation may be that the movable platform 20 moves in a first direction relative to the base 30, and the seat mounting platform 10 moves in a second direction and a third direction relative to the base 30. When the seat is mounted to the seat mounting platform 10, the seat can move in the first direction, the second direction, and the third direction relative to the base 30. Specifically, the seat mounting platform 10 moves in an up-and-down direction relative to the base 30, and the movable platform 20 can move in both a front-to-back direction and a left-to-right direction relative to the base 30.

[0052] The vibration reduction assembly 80 includes a first vibration reduction assembly 60 and a second vibration reduction assembly 70. The first vibration reduction assembly 60 is installed between the seat mounting platform 10 and the movable platform 20 to prevent the transmission of vibration between the seat mounting platform 10 and the movable platform 20. When the vehicle is traveling, the vehicle may vibrate, which in turn causes the seat to vibrate. The first vibration reduction assembly 60 is installed between the seat mounting platform 10 and the movable platform 20. The first vibration reduction assembly 60 can reduce the vibration of the seat in the first direction, the second direction or the third direction to prevent the transmission of vibration between the seat mounting platform 10 and the movable platform 20 from the first direction, the second direction or the third direction.

[0053] The second vibration reduction assembly 70 is installed between the movable platform 20 and the base 30 to prevent the transmission of vibration between the movable platform 20 and the base 30. When the vehicle is traveling, the vehicle may vibrate, which in turn causes the seat to vibrate. The second vibration reduction assembly 70 is installed between the seat mounting platform 10 and the movable platform 20. The second vibration reduction assembly 70 can reduce the vibration of the seat in the first direction, the second direction, or the third direction to prevent the transmission of vibration between the seat mounting platform 10 and the movable platform 20 from the first direction, the second direction, or the third direction.

[0054] According to some embodiments of the present invention, referring to Figure 1-Figure 7 , the seat mounting platform 10 can move in a first direction relative to the movable platform 20, the movable platform 20 is provided with a first slide 21, and the first slide 21 extends in the first direction; the seat mounting platform 10 is provided with a slide bar 11, the slide bar 11 extends in the first direction, the slide bar 11 and the first slide 21 are slidably matched, the slide bar 11 can move in the first direction along the first slide 21, and the slide bar 11 can drive the seat mounting platform 10 to move in the first direction. For example, the first slide 21 is sleeved on the outer side of the slide bar 11, and a lubricant is provided on the mating surface of the slide bar 11 and the first slide 21, which can reduce the friction force when the slide bar 11 moves relative to the first slide 21, so that the slide bar 11 moves more smoothly relative to the first slide 21.

[0055] The first vibration damping assembly 60 is arranged between the slide bar 11 and the first slide track 21. There is sufficient space between the slide bar 11 and the first slide track 21 to facilitate the arrangement of the first vibration damping assembly 60. With the cooperation of the slide bar 11 and the first slide track 21, the seat mounting platform 10 can move along the first direction, and the first vibration damping assembly 60 can achieve a better vibration damping effect in the first direction.

[0056] According to some embodiments of the present invention, referring to Figure 1-Figure 9The inner wall of the first slideway 21 has a first groove 211, and a first accommodating chamber 212 is defined between the first groove 211 and the slide bar 11. The first damping assembly 60 includes a first magnetorheological fluid, a first valve plug 61 and a first electromagnetic assembly 62, and the first magnetorheological fluid is arranged in the first accommodating chamber 212. For example, a sealing measure is arranged on the mating surface between the slide bar 11 and the first slideway 21, which can seal the gap between the mating surfaces of the slide bar 11 and the first slideway 21, and prevent the first magnetorheological fluid from leaking out from the gap between the slide bar 11 and the first slideway 21.

[0057] The first valve plug 61 is fixed on the slide rod 11, and is used to separate the first accommodating chamber 212 into a first sub-chamber 213 and a second sub-chamber 214. The first valve plug 61 is provided with a first through hole 611, and the first through hole 611 is used to connect the first sub-chamber 213 and the second sub-chamber 214. The first magnetorheological fluid can flow between the first sub-chamber 213 and the second sub-chamber 214 through the first through hole 611. The first electromagnetic assembly 62 is mounted on the first valve plug 61, for example, the first electromagnetic assembly 62 includes a wire, and a first annular groove 612 is formed on the first valve plug 61. The wire is wound in the first annular groove 612, and a lubricant and a sealing measure are also provided between the inner wall of the first slideway 21 and the first electromagnetic assembly 62.

[0058] Figure 4-Figure 5 The dotted box with arrows shown in the first vibration 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, so that the magnetic field strength in the area where the first magnetorheological fluid in the first through hole 611 is located can be changed, so that the viscosity of the first magnetorheological fluid flowing through the first through hole 611 changes, and then the flow rate of the first magnetorheological fluid can be changed. The seat mounting platform 10 is movable along the first direction, and the flow rate of the first magnetorheological fluid can be further changed, so that the rigidity and damping of the vibration of the seat in the first direction transmitted to the occupants in the vehicle can be changed, thereby reducing the vibration of the seat in the first direction.

[0059] For example, the first magnetorheological fluid is a material whose rheological properties can change rapidly through an external magnetic field. It is usually composed of magnetic soft iron particles, lubricants, and stabilizers. In the absence of a magnetic field, the magnetic soft iron particles are in an irregular free-flowing state, showing Newtonian fluid properties and low viscosity. When a magnetic field is applied to the first magnetorheological fluid, the magnetic soft iron particles will begin to arrange in a chain shape in a very short time, the viscosity will increase instantly, and the fluidity will decrease. When the magnetic field strength continues to increase, the viscosity of the first magnetorheological fluid will increase further, and the fluidity will also decrease further, approaching a semi-solid or even solid state.

[0060] According to some embodiments of the present invention, referring to Figure 1-Figure 7A first wiring channel 111 is provided on the slide bar 11, and the wire is suitable for being routed along the first wiring channel 111 to be electrically connected to the first electromagnetic component 62, thereby facilitating 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 first direction vibration of the seat.

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

[0062] According to some embodiments of the present invention, referring to Figure 1-Figure 7 The seat vibration reduction device 100 further includes at least one guide assembly 40, which may be one guide assembly 40 or a plurality of guide assemblies 40. The guide assembly 40 is arranged between the seat mounting platform 10 and the movable platform 20, and is used to guide the movable 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 arranged on the seat mounting platform 10, and the other of the guide rod 41 and the guide sleeve 42 is arranged on the movable platform 20, which may be the guide rod 41 arranged on the seat mounting platform 10, and the guide sleeve 42 arranged on the movable platform 20; or the guide sleeve 42 is arranged on the seat mounting platform 10, and the guide rod 41 is arranged on the movable platform 20.

[0063] With the cooperation of the guide rod 41 and the guide sleeve 42, the seat mounting platform 10 can be moved smoothly along the first direction, and the seat mounting platform 10 is prevented 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, which can reduce the friction force when the guide rod 41 and the guide sleeve 42 move relative to each other, so that the movement between the guide rod 41 and the guide sleeve 42 is smoother, and thus the seat mounting platform 10 moves more smoothly.

[0064] According to some embodiments of the present invention, referring to Figure 1-Figure 9The movable platform 20 can move relative to the base 30. The movable platform 20 can move relative to the base 30 along the second direction and the third direction. The movable platform 20 has a second slide 22 extending along the second direction and a third slide 23 extending along the third direction. The second slide 22 and the third slide 23 are perpendicular to each other and connected to each other. The seat vibration reduction device 100 also includes a cross bar 50. The cross bar 50 includes a first rod body 51 and a second rod body 52. ​​The first rod body 51 and the second rod body 52 are perpendicular to each other. The first rod body 51 and the second rod body 52 are installed in the second slide 22 and the third slide 23 respectively.

[0065] The first rod 51 is slidably matched with the base 30, the first rod 51 is slidable relative to the base 30, the first rod 51 can slide along the axial direction of the first rod 51, the second rod 52 is tightly matched with the third slide 23, the first rod 51 drives the second rod 52 to slide when sliding, and the second rod 52 can drive the movable platform 20 to slide along the axial direction of the first rod 51 when sliding, that is, the first rod 51 can drive the movable platform 20 to slide when sliding relative to the base 30. For example, when the seat vibration reduction device 100 is installed on the vehicle, the sliding direction of the first rod 51 is the second direction, and when the first rod 51 slides along the second direction, it can drive the movable platform 20 to slide along the second direction.

[0066] The first rod 51 and the base 30 after being matched are also used 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 22, so that the movable platform 20 is also suitable for moving along the radial direction of the second slide 22, and the radial direction of the second slide 22 is the radial direction of the first rod 51. For example, when the seat vibration reduction device 100 is installed on the vehicle, the radial direction of the second slide 22 is the third direction, and the movable platform 20 can also slide along the third direction.

[0067] According to some embodiments of the present invention, referring to Figure 1-Figure 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, the second mounting seat 32 has a second mounting groove 321, and the two ends of the first rod 51 are respectively slidably matched with the first mounting groove 311 and the second mounting groove 321. For example, a lubricant is provided on the matching surface between the first rod 51 and the first mounting groove 311 and the second mounting groove 321, which can reduce the friction force when the first rod 51 slides relative to the first mounting groove 311 and the second mounting groove 321, so that the first rod 51 slides relative to the first mounting groove 311 and the second mounting groove 321 more smoothly. Among them, the second vibration reduction assembly 70 is arranged between the first rod 51 and the first mounting groove 311, and the space between the first rod 51 and the first mounting groove 311 is sufficient, which is convenient for the arrangement of the second vibration reduction assembly 70.

[0068] The inner wall of the first mounting groove 311 is provided with a second groove 312, and a second accommodating chamber 313 is defined between the second groove 312 and the first rod body 51. The second vibration damping assembly 70 includes a second magnetorheological fluid, a second valve plug 71 and a second electromagnetic assembly 72, and the second magnetorheological fluid is arranged in the second accommodating chamber 313. For example, a sealing measure is provided on the mating surface between the first rod body 51 and the first mounting groove 311, which can seal the gap between the mating surface of the first rod body 51 and the first mounting groove 311, and prevent the second magnetorheological fluid from leaking out from the gap between the first rod body 51 and the first mounting groove 311.

[0069] The second valve plug 71 is fixed on the first rod body 51, and is used to separate the second accommodating chamber 313 into a third sub-chamber 314 and a fourth sub-chamber 315. The second valve plug 71 is provided with a second through hole 711, and the second through hole 711 is used to connect the third sub-chamber 314 and the fourth sub-chamber 315. The second magnetorheological fluid can flow between the third sub-chamber 314 and the fourth sub-chamber 315 through the second through hole 711. The second electromagnetic assembly 72 is installed on the second valve plug 71. For example, the second electromagnetic assembly 72 includes a wire, and a second annular groove is formed on the second valve plug 71. The wire is wound in the second annular groove. A lubricant and a sealing measure are also provided between the inner wall of the first installation groove 311 and the second electromagnetic assembly 72.

[0070] Figure 5 The dotted box with arrows in the second vibration damping assembly 70 is a schematic diagram of the magnetic field generated by the second electromagnetic assembly 72. When the seat vibrates along the axial direction of the first rod body 51, the current of the second electromagnetic assembly 72 is changed, so that the magnetic field strength of the area where the second magnetorheological fluid in the second through hole 711 is located can be changed, so that the viscosity of the second magnetorheological fluid flowing through the second through hole 711 is changed, and then the flow rate of the second magnetorheological fluid can be changed; when the first rod body 51 slides, it can drive the movable platform 20 to slide along the axial direction of the first rod body 51, and the damping of its sliding along the axial direction of the first rod body 51 is the damping of the second vibration damping assembly 70 by the flow resistance of the second magnetorheological fluid. Therefore, as long as the viscosity of the second magnetorheological fluid flowing through the second through hole 711 is changed, the rigidity and damping of the seat along the axial direction of the first rod body 51 are changed, thereby reducing the vibration of the first rod body 51 in the axial direction.

[0071] In one example, a second wiring channel 511 is provided on the first rod body 51, and the wire is suitable for routing along the second wiring channel 511 to be electrically connected to the second electromagnetic assembly 72. A sixth wire hole is provided on the second electromagnetic assembly 72, a seventh wire hole is provided on the second valve plug 71, and an eighth wire hole 512 is provided on the first rod body 51, and the eighth wire hole 512 can be connected to the second wiring channel 511. The wire of the second electromagnetic assembly 72 can be electrically connected to the control module 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 in sequence, and the control module can control the current of the second electromagnetic assembly 72.

[0072] According to some embodiments of the present invention, referring to Figure 1-Figure 8 The movable platform 20 has a first slide groove 24 on the side facing the first mounting seat 31. The first slide groove 24 slides with the first mounting seat 31 to limit the moving direction of the movable platform 20. The first mounting seat 31 has a first mounting groove 311. One end of the first rod body 51 slides with the first mounting groove 311, so that the movable platform 20 can slide along the axial direction of the first rod body 51.

[0073] According to some embodiments of the present invention, referring to Figure 1-Figure 8 The movable platform 20 has a second slide groove 25 on the side facing the second mounting seat 32. The second slide groove 25 slides with the second mounting seat 32 to limit the moving direction of the movable platform 20. The second mounting seat 32 has a second mounting groove 321. One end of the first rod body 51 slides with the second mounting groove 321, so that the movable platform 20 can slide along the axial direction of the first rod body 51.

[0074] According to some embodiments of the present invention, referring to Figure 1-Figure 8 The second vibration damping assembly 70 is also arranged between the second rod 52 and the third slide 23. For example, a lubricant is arranged on the mating surface of the second rod 52 and the third slide 23, which can reduce the friction force when the second rod 52 slides relative to the third slide 23, so that the second rod 52 moves relative to the third slide 23 more smoothly. The inner wall of the third slide 23 is provided with a third groove 231, and a third accommodating chamber 232 is defined between the third groove 231 and the second rod 52. The second vibration damping assembly 70 includes a third magnetorheological fluid, a third valve plug 73 and a third electromagnetic assembly 74, and the third magnetorheological fluid is arranged in the third accommodating chamber 232. For example, a sealing measure is arranged on the mating surface of the second rod 52 and the third slide 23, which can seal the gap between the mating surfaces of the second rod 52 and the third slide 23 to prevent the third magnetorheological fluid from leaking out of the gap between the second rod 52 and the third slide 23.

[0075] The third valve plug 73 is fixed on the second rod body 52, and is used to separate the third accommodating chamber 232 into a fifth sub-chamber 233 and a sixth sub-chamber 234. The third valve plug 73 is provided with a third through hole 731, and the third through hole 731 is used to connect the fifth sub-chamber 233 and the sixth sub-chamber 234. The third magnetorheological fluid can flow between the fifth sub-chamber 233 and the sixth sub-chamber 234 through the third through hole 731. The third electromagnetic assembly 74 is mounted on the third valve plug 73, for example, the third electromagnetic assembly 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. A lubricant and a sealing measure are also provided between the inner wall of the third slideway 23 and the third electromagnetic assembly 74.

[0076] When the seat vibrates in the radial direction of the second slide 22, the current of the third electromagnetic component 74 is changed, so that the magnetic field strength in the area where the third magnetorheological fluid in the third through hole 731 is located can be changed, so that the viscosity of the third magnetorheological fluid flowing through the third through hole 731 changes. At this time, the cross rod 50 cannot slide in the radial direction of the second slide 22 due to the constraint of the base 30, but because the diameter of the first rod body 51 is smaller than the aperture of the second slide 22, the movable platform 20 can move in the radial direction of the second slide 22, and the damping of its sliding in the radial direction of the second slide 22 is the damping of the second vibration reduction component 70 by the flow resistance of the third magnetorheological fluid. Therefore, as long as the viscosity of the third magnetorheological fluid flowing through the third through hole 731 is changed, the rigidity and damping of the seat vibration in the radial direction of the second slide 22 are changed, thereby reducing the vibration of the second slide 22 in the radial direction.

[0077] In one example, a third wiring channel 521 is provided on the second rod body 52, and the wire is suitable for routing along the third wiring channel 521 to be electrically connected to the third electromagnetic assembly 74. A ninth wire hole is provided on the third electromagnetic assembly 74, a tenth wire hole is provided on the third valve plug 73, an eleventh wire hole 522 is provided on the second rod body 52, and the eleventh wire hole 522 can be connected to the third wiring channel 521, and a twelfth wire hole 34 is also provided on the movable platform 20. The wire of the third electromagnetic assembly 2 can be electrically connected to the control module 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 in sequence, and the control module can control the current of the third electromagnetic assembly 74.

[0078] The vehicle is provided with a vibration sensor, which is used to monitor the real-time vibration characteristics of the seat, including information such as amplitude, vibration frequency, and vibration direction. The real-time vibration characteristic information monitored by the vibration sensor is transmitted to the control module, which analyzes and processes the vibration characteristic information and controls the first vibration reduction component 60 and the second vibration reduction component 70 according to the current real-time vibration reduction demand, and changes the current in the wires of the first electromagnetic component 62, the second electromagnetic component 72, and the third electromagnetic component 74, thereby changing the magnetic field strength in the area where the magnetorheological fluid through holes of the three are located, so that the fluid properties of the magnetorheological fluid flowing through the magnetorheological fluid through holes of the three change, so that the damping of the three along their respective axial movements can be controlled in real time, thereby achieving real-time control of the vibration reduction rigidity and vibration reduction damping in the three degrees of freedom directions.

[0079] The vehicle according to the second embodiment of the present invention comprises the seat vibration reduction device 100 according to the first embodiment of the present invention.

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

[0081] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0082] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0083] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

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

Claims

1. A seat vibration reduction device, characterized in that: include: Seat mounting platform; A base, the seat mounting platform is mounted on the base, the seat mounting platform can move 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; A vibration reduction assembly is arranged between the seat mounting platform and the base, and is used to hinder the transmission of vibration between the seat mounting platform and the base.

2. The seat vibration reduction device according to claim 1, characterized in that: Also includes: A movable platform, wherein the seat mounting platform can be movably mounted on the movable platform, and the movable platform can be movably mounted on the base. The vibration damping assembly includes a first vibration damping assembly and a second vibration damping assembly. The first vibration damping assembly is mounted between the seat mounting platform and the movable platform to hinder the transmission of vibration between the seat mounting platform and the movable platform, and the second vibration damping assembly is mounted between the movable platform and the base to hinder the transmission of vibration between the movable platform and the base.

3. The seat vibration reduction device according to claim 2, characterized in that: The seat mounting platform can move along the first direction relative to the movable platform, the movable platform is provided with a first slide extending along the first direction, the seat mounting platform is provided with a sliding rod slidably matched with the first slide, and the first shock absorbing assembly is arranged between the sliding rod and the first slide.

4. The seat vibration reduction device according to claim 3, characterized in that: The inner wall of the first slideway has a first groove, and a first accommodating cavity is defined between the first groove and the slide bar. The first vibration reduction assembly includes: A first magnetorheological fluid, wherein the first magnetorheological fluid is disposed in the first containing chamber; a first valve plug, which is fixed on the slide rod and is used to separate the first accommodating chamber into a first sub-chamber and a second sub-chamber, and the first valve plug is provided with a first through hole, and the first through hole is used to connect the first sub-chamber and the second sub-chamber; A first electromagnetic assembly is mounted on the first valve plug.

5. The seat vibration reduction device according to claim 4, characterized in that: The slide bar is provided with a first wiring channel, and the wire is suitable for being routed along the first wiring channel to be electrically connected to the first electromagnetic component.

6. The seat vibration reduction device according to claim 3, characterized in that: It also includes at least one guide assembly, which is arranged between the seat mounting platform and the movable platform and is used to guide the movable direction of the seat mounting platform. The guide assembly includes a guide rod and a guide sleeve, one of the guide rod and the guide sleeve is arranged on the seat mounting platform, and the other of the guide rod and the guide sleeve is arranged on the movable platform.

7. The seat vibration reduction device according to claim 2, characterized in that: The movable platform can move along the second direction and the third direction relative to the base, 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 are connected to each other, the seat vibration reduction device also includes a cross bar, the cross bar includes a first rod body and a second rod body perpendicular to each other, the first rod body and the second rod body are respectively installed in the second slide and the third slide, wherein the first rod body is slidably matched with the base, and the matched first rod body and the base are also used to limit the position of the cross bar in the axial direction of the second rod body, and the diameter of the first rod body is smaller than the aperture of the second slide, so that the movable platform is also suitable for moving in the radial direction of the second slide.

8. The seat vibration reduction device according to claim 7, characterized in that: The base has a first mounting seat and a second mounting seat, the first mounting seat has a first mounting groove, the second mounting seat has a second mounting groove, and the two ends of the first rod body are respectively slidably matched with the first mounting groove and the second mounting groove, wherein, The second vibration damping assembly is disposed between the first rod body and the first mounting groove, the inner wall of the first mounting groove is provided with a second groove, a second accommodating cavity is defined between the second groove and the first rod body, and the second vibration damping assembly includes: a second magnetorheological fluid, wherein the second magnetorheological fluid is disposed in the second containing chamber; a second valve plug, the second valve plug being fixed on the first rod body and used for dividing the second accommodating chamber into a third sub-chamber and a fourth sub-chamber, the second valve plug being provided with a second through hole, the second through hole being used for connecting the third sub-chamber and the fourth sub-chamber; A second electromagnetic assembly is mounted on the second valve plug.

9. The seat vibration reduction device according to claim 8, characterized in that: The side of the movable platform facing the first mounting seat has a first sliding groove, and the first sliding groove is slidably matched with the first mounting seat to limit the movable direction of the movable platform, and / or, The side surface of the movable platform facing the second mounting seat has a second sliding groove, and the second sliding groove is slidably matched with the second mounting seat to limit the movable direction of the movable platform.

10. The seat vibration reduction device according to claim 7, characterized in that: The second vibration reduction assembly is arranged between the second rod body and the third slideway, the inner wall of the third slideway is provided with a third groove, and a third accommodating cavity is defined between the third groove and the second rod body, and the second vibration reduction assembly includes: a third magnetorheological fluid, wherein the third magnetorheological fluid is disposed in the third containing chamber; a third valve plug, the third valve plug being fixed on the second rod body and being used for dividing the third accommodating chamber into a fifth sub-chamber and a sixth sub-chamber, the third valve plug being provided with a third through hole, the third through hole being used for connecting the fifth sub-chamber and the sixth sub-chamber; A third electromagnetic assembly is mounted on the third valve plug.

11. A vehicle, characterized in that: The invention comprises the seat vibration reduction device according to any one of claims 1 to 10.

Images