Magnetic levitation support device and seat device using the same

Abstract

The application provides a magnetic suspension supporting device and a seat device suitable for the same, and relates to the technical field of seat magnetic suspension. The magnetic suspension supporting device comprises: a first supporting module comprising a first supporting unit and a first magnetic unit; and a second supporting module comprising a second supporting unit, a second magnetic unit and a seat connecting piece. The first magnetic pole surface of the first magnetic unit and the second magnetic pole surface of the second magnetic unit are oppositely arranged and have the same polarity. The first magnetic unit and / or the second magnetic unit is suitable for adjusting the magnetic force size, so that the second magnetic unit moves in a first direction in the cavity, thereby driving the seat to ascend and descend. The second supporting unit is suitable for moving in a second direction perpendicular to the first direction, so as to adjust the relative position with the first supporting unit, thereby adjusting the projection area of the first magnetic pole surface projected on the second magnetic pole surface in the first direction.

Description

Technical Field

[0001] This application relates primarily to the field of magnetic levitation technology for seats, and more particularly to a magnetic levitation support device and a suitable seat device thereof. Background Technology

[0002] Vehicles are tools used for daily travel. During operation, external factors cause vibrations that affect the human body, reducing comfort. Over long distances, vibrations can lead to fatigue, dizziness, nausea, and other symptoms, harming the health of passengers. Improving the vehicle's support structure can reduce the impact of vibrations and enhance comfort. However, the support structure must also consider factors such as handling stability, support, and safety. These requirements are often contradictory and mutually exclusive; therefore, improvements to the support structure cannot fully meet the demands for vehicle comfort.

[0003] In related technologies, applying magnetic levitation technology to seats can further reduce vehicle vibration. However, to suspend and support passengers of different weights at the same initial height, i.e., the seat's balance position, related technologies typically use active forces to correct this balance. Since active forces have upper and lower limits, seats using magnetic levitation technology have a limited applicability to passenger weights. Furthermore, after active forces are used to correct the seat's balance, subsequent vibration damping often lacks sufficient active force, resulting in a less than optimal riding experience for passengers.

[0004] Therefore, there is an urgent need for a magnetic levitation support device with a wider range of applications and adjustable range, as well as a suitable seating device. Summary of the Invention

[0005] The technical problem to be solved by this application is to provide a magnetic levitation support device and a suitable seat device thereof, which has a wider range of applications and adjustable range, thereby improving the passenger's riding experience and riding comfort.

[0006] To address the aforementioned technical problems, this application provides a magnetic levitation support device for use in a seat, comprising: a first support module including a first support unit and a first magnetic unit, wherein the first magnetic unit is located within the first support unit and is fixedly connected to the first support unit; a second support module including a second support unit, a second magnetic unit, and a seat connector, wherein the second support unit is connected to the first support unit, the second magnetic unit is located within the cavity of the second support unit, and the seat connector includes opposing first and second connecting ends, the first connecting end extending into the cavity and fixedly connected to the second magnetic unit, and the second connecting end being adapted to be fixedly connected to the seat, wherein the first magnetic pole surface of the first magnetic unit and the second magnetic pole surface of the second magnetic unit are arranged opposite each other and have the same polarity, the first magnetic unit and / or the second magnetic unit are adapted to adjust the magnitude of the magnetic force so that the second magnetic unit moves within the cavity along a first direction, thereby driving the seat to rise and fall, and the second support unit is adapted to move along a second direction perpendicular to the first direction to adjust its relative position with the first support unit, thereby adjusting the projected area of ​​the first magnetic pole surface projected onto the second magnetic pole surface along the first direction.

[0007] Optionally, the first support unit includes a first through hole, the second support unit includes a second through hole, and the magnetic levitation support device further includes a support positioning member that passes through the first through hole and the second through hole to limit the range of movement of the second support unit in the second direction. The support positioning member is adapted to fix the first support unit and the second support unit so that the projected area remains unchanged.

[0008] Optionally, the first through hole and / or the second through hole are elongated holes extending along the second direction.

[0009] Optionally, the first magnetic unit includes: a first magnetically conductive assembly located within the first support unit, the first magnetically conductive assembly including a first magnetically conductive opening facing the second support module; a first permanent magnet including a first magnetic pole surface, the first permanent magnet being located within the first magnetically conductive assembly and fixedly connected to the first magnetically conductive assembly, wherein the first permanent magnet and the first magnetically conductive assembly form a first magnetically conductive space; and a first excitation coil mounted on the first permanent magnet and located within the first magnetically conductive space, wherein the first magnetic unit is adapted to change the magnetic force of the first magnetic unit by adjusting the magnitude and / or direction of the current input to the first excitation coil according to the load on the seat.

[0010] Optionally, the first permanent magnet includes a first permanent magnet through hole extending along a first direction, and the first magnetic unit further includes: a first positioning member, the first positioning member passing through the first permanent magnet through hole, the first positioning member including a first positioning end and a second positioning end opposite to each other, the first positioning end abutting against the first permanent magnet, and the second positioning end being fixedly connected to the first magnetic conductive component.

[0011] Optionally, the first magnetically conductive component includes: a first magnetically conductive sleeve, including a first magnetically conductive opening, wherein the first permanent magnet is located inside the first magnetically conductive sleeve; and a first magnetically conductive ring, sleeved on the first permanent magnet and abutting against the first magnetically conductive sleeve, wherein the first magnetically conductive ring and the first magnetic pole surface together cover the first magnetically conductive opening, wherein the first magnetically conductive sleeve, the first permanent magnet and the first magnetically conductive ring form a first magnetically conductive space.

[0012] Optionally, the first support unit includes: a base plate that abuts against the first magnetic sleeve; and a first sleeve that includes a first sleeve end and a second sleeve end, the first sleeve end including a first end face and a second end face, the first end face abutting against the second support unit, the second end face abutting against the first magnetic ring, and the second sleeve end being fixedly connected to the base plate.

[0013] Optionally, the first magnetic sleeve includes a magnetic sleeve protrusion, and the first sleeve also includes a first connecting portion connecting the end of the first sleeve and the end of the second sleeve. The first connecting portion includes a fixing portion adapted to abut against the magnetic sleeve protrusion.

[0014] Optionally, the second magnetic unit includes: a second magnetically conductive assembly, including a second magnetically conductive opening facing the first support module, the second magnetically conductive assembly being located within the cavity and fixedly connected to the first connecting end, the second magnetically conductive assembly being adapted to move within the cavity along a first direction; a second permanent magnet, including a second magnetic pole face, the second permanent magnet being located within the second magnetically conductive assembly and fixedly connected to the second magnetically conductive assembly, wherein the second permanent magnet and the second magnetically conductive assembly form a second magnetically conductive space; and a second excitation coil, mounted on the second permanent magnet and located within the second magnetically conductive space, wherein the second magnetic unit is adapted to change the magnetic force of the second magnetic unit by adjusting the magnitude and / or direction of the current input to the second excitation coil according to the load on the seat.

[0015] Optionally, the second magnetically conductive assembly includes: a second magnetically conductive sleeve, including a second magnetically conductive opening, the second magnetically conductive sleeve being fixedly connected to a first connecting end, wherein the second permanent magnet is located inside the second magnetically conductive sleeve; and a second magnetically conductive ring, sleeved on the second permanent magnet and connected to the second magnetically conductive sleeve, the second magnetically conductive ring and the second magnetic pole surface jointly covering the second magnetically conductive opening, wherein the second magnetically conductive sleeve, the second permanent magnet, and the second magnetically conductive ring form a second magnetically conductive space.

[0016] Optionally, the second magnetic conductive assembly further includes: a sleeve wear-resistant ring belt, which is sleeved on the second magnetic conductive sleeve and abuts against the inner wall of the chamber, so that there is a gap between the second magnetic conductive sleeve and the inner wall.

[0017] Optionally, the second magnetic sleeve includes a magnetic base plate, a connecting ring, and a magnetic sleeve. The connecting ring and the magnetic sleeve are respectively connected to the opposite sides of the magnetic base plate. The connecting ring is fixedly connected to the seat connector. The magnetic base plate has a first coil outlet. The seat connector includes a connecting sleeve with a second coil outlet. The lead wire of the second excitation coil extends to the outside of the second support module through the first coil outlet, the central hole of the connecting ring, the central through hole of the connecting sleeve, and the second coil outlet in sequence.

[0018] Optionally, the connecting sleeve includes a sleeve protrusion located outside the second support unit, the sleeve protrusion having a second coil outlet, and the sleeve protrusion being adapted to abut against the end of the second support unit away from the first support module.

[0019] Optionally, the second support unit includes: a connecting opening connected to the chamber, wherein a first connecting end extends into the chamber through the connecting opening; and a wear-resistant ring band for the connector disposed on the inner wall of the connecting opening, the wear-resistant ring band for the connector abutting against the seat connector.

[0020] To address the aforementioned technical problems, this application provides a seating device applied to a vehicle, comprising: a seat; at least one of the aforementioned magnetic levitation support devices, wherein the seat connector of the magnetic levitation support device is fixedly connected to the seat.

[0021] Compared with existing technologies, this application has the following advantages: The first magnetic pole surface of the first magnetic unit and the second magnetic pole surface of the second magnetic unit are arranged opposite each other and have the same polarity, generating a repulsive magnetic force between the first and second magnetic units. This suspends the seat, reducing external vibration interference and improving passenger comfort. Furthermore, by adjusting the magnitude of the magnetic force, the first and / or second magnetic units can further reduce the impact of external vibrations on the seat, further improving comfort. In addition, by moving the second support unit to create different relative positions with the first support unit, the projected areas of the first and second magnetic pole surfaces can be adjusted. This allows for pre-adjustment of the repulsive magnetic force without the first and / or second magnetic units actively changing their output magnetic force, thus correcting the seat balance for passengers of different weights and achieving a wider applicability and adjustability range. Attached Figure Description

[0022] The accompanying drawings are included to provide a further understanding of this application; they are incorporated into and constitute a part of this application. The drawings illustrate embodiments of this application and, together with this specification, serve to explain the principles of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of a magnetic levitation support device according to an embodiment of this application; Figure 2 yes Figure 1 Schematic diagram of the structure of the first magnetic sleeve; Figure 3 yes Figure 1 A schematic diagram of the structure of the first sleeve; Figure 4 yes Figure 1 Enlarged view of the area indicated by the dashed line; Figure 5 yes Figure 1 Schematic diagram of the structure of the second magnetic sleeve; Figure 6 yes Figure 1 Schematic diagram of the middle connecting sleeve; Figure 7 This is a schematic diagram of magnetic field lines in a magnetic levitation support device according to an embodiment of this application; Figure 8 yes Figure 1 A top view of the end of the third sleeve; Figure 9 yes Figure 1 A schematic diagram showing the movement of the second support unit relative to the first support unit to change the projected area; and Figure 10 This is a structural schematic diagram of a seat device according to an embodiment of this application. Detailed Implementation

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0024] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not specifically singular and may include plural forms. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0025] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0026] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0027] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0028] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In addition, although the terminology used in this application is selected from commonly known and used terms, some terms mentioned in this application's specification may have been chosen by the applicant according to his or her judgment, and their detailed meanings are explained in the relevant sections of this description. Moreover, this application should be understood not only through the actual terms used, but also through the meaning implied by each term.

[0029] It should be understood that when a component is referred to as "on another component," "connected to another component," "coupled to another component," or "in contact with another component," it can be directly on, connected to, coupled to, or in contact with that other component, or there may be an intervening component. In contrast, when a component is referred to as "directly on another component," "directly connected to," "directly coupled to," or "directly in contact with" another component, there is no intervening component. Similarly, when a first component is referred to as "electrically contacting" or "electrically coupled to" a second component, there is an electrical path between the first and second components that allows current to flow. This electrical path may include capacitors, coupled inductors, and / or other components that allow current to flow, even if there is no direct contact between the conductive components.

[0030] Reference Figure 1 One embodiment of this application provides a magnetic levitation support device 100, which is applied to a seat. For example... Figure 1 As shown, the magnetic levitation support device 100 includes a first support module 10, a second support module 20, and a support positioning member 30. In this embodiment, the second support module 20 is connected to the seat, and the first support module 10 and the second support module 20 are interconnected and generate an adjustable repulsive magnetic force. This allows the second support module 20 to move the seat along the first direction x under the action of the repulsive magnetic force, thereby achieving height adjustment of the seat. Furthermore, the support positioning member 30 is used to further assist the second support module 20 in relative movement to the first support module 10; its specific configuration will be described in detail later.

[0031] Continue to refer to Figure 1In this embodiment, the first support module 10 includes a first support unit 11 and a first magnetic unit 12. The first magnetic unit 12 is located within the first support unit 11 and is fixedly connected to it. In this embodiment, the first magnetic unit 12 generates magnetic force. By being fixedly connected to the first support unit 11, the first magnetic unit 12 avoids displacement caused by the repulsive magnetic force generated by the first support module 10 and the second support module 20. This ensures that all displacement generated by the repulsive magnetic force is applied to the second support module 20, thereby maximizing the use of the repulsive magnetic force for seat height adjustment and improving the effective utilization rate of the repulsive magnetic force.

[0032] Continue to refer to Figure 1 The first support unit 11 includes a base plate 111 and a first sleeve 112. In this embodiment, the first support unit 11 is used to accommodate and fix the first magnetic unit 12. Specifically, the base plate 111 is adapted to be fixedly connected to a fixing surface. It can be understood that the fixing surface can be a surface on the vehicle on which the seat is located, used to fix the seat, such as the upper surface of the floor of a car used to fix the seat. In this embodiment, the base plate 111 is fixedly connected to the fixing surface by bolts, but this application does not limit the connection method between the floor 111 and the fixing surface. In other embodiments, the base plate 111 is fixedly connected to the fixing surface by welding. The first sleeve 112 includes a first sleeve end 1121 and a second sleeve end 1122, wherein the second sleeve end 1122 is fixedly connected to the base plate 111, thereby forming a first accommodating space for accommodating and fixing the first magnetic unit 12. In this embodiment, the second sleeve end 1122 and the base plate 111 have corresponding through holes, so that the fastener 113, such as a fastening bolt, can pass through the through hole of the second sleeve end 1122 and the corresponding through hole of the base plate 111, thereby fixing the base plate 111 and the first sleeve 112 together. Furthermore, the through holes and the detachable fastener 113 facilitate the installation and maintenance of the first magnetic unit 12 located in the first receiving space, thus improving the convenience of installation and maintenance operations.

[0033] Continue to refer to Figure 1In this embodiment, the first magnetic unit 12 includes a first magnetically conductive component 121, a first permanent magnet 122, a first excitation coil 123, and a first positioning element 124. The first permanent magnet 122 is fixedly connected to the first magnetically conductive component 121 via the first positioning element 124. The first excitation coil 123 is mounted on the first permanent magnet 122. The first magnetic unit 12 outputs magnetic force through the first permanent magnet 122 and the first excitation coil 123. The first magnetically conductive component 121, by accommodating the first permanent magnet 122 and the first excitation coil 123 and providing a closed magnetic circuit, improves the magnetic field utilization rate of the first permanent magnet 122 and the first excitation coil 123. Specifically, in this embodiment, the first magnetically conductive component 121 is located within the first accommodating space, i.e., within the first support unit 11, and the first magnetically conductive component 121 includes a first magnetically conductive opening 1211 facing the second support module 20.

[0034] Furthermore, the first magnetically conductive assembly 121 also includes a first magnetically conductive sleeve 1212 and a first magnetically conductive ring 1213. The first magnetically conductive sleeve 1212 includes a first magnetically conductive opening 1211. In this embodiment, the first magnetically conductive sleeve 1212 is located on the base plate 111, the first magnetically conductive ring 1213 is located on the first magnetically conductive sleeve 1212 and abuts against it, and the first sleeve 112 covers the first magnetically conductive sleeve 1212 and the first magnetically conductive ring 1213. The first sleeve end 1121 includes a first end face 11211 and a second end face 11212. When the second sleeve end 1122 is fixedly connected to the base plate 111, the first end face 11211 abuts against the second support module 20, the second end face 11212 abuts against the first magnetic ring 1213, and the base plate 111 abuts against the first magnetic sleeve 1212. This allows the first magnetic assembly 121 to be stably confined in the first receiving space without being fixedly connected to the first support unit 11. It should be noted that in this embodiment, the first excitation coil 123 is wound on a coil holder, and then the coil holder is fitted onto the first permanent magnet 122, thereby assembling the first excitation coil 123 onto the first permanent magnet 122. Furthermore, the coil holder has a small interference fit with the first permanent magnet 122 and a clearance fit with the first magnetic sleeve 1212. The coil holder is fixed by abutting against the first magnetic ring 1213. Further reference Figure 2 and Figure 3 In this embodiment, the first magnetic sleeve 1212 has a third through hole 45 and the first sleeve 112 has a fourth through hole 46, so that the lead wire of the first excitation coil 123 is led out to the outside of the first support module 10 through the third through hole 45 and the fourth through hole 46 in sequence, which facilitates the operation of the first excitation coil 123 by inputting current from the outside.

[0035] Furthermore, the inner contour of the first support unit 11 and the outer contour of the first magnetically conductive assembly 121 are fitted with a clearance, preventing the first magnetically conductive assembly 121 from moving within the first accommodating space. This ensures that the first permanent magnet 122, fixedly connected to the first magnetically conductive assembly 121, will not displace due to repulsive magnetic forces during the operation of the magnetic levitation support device 100, thus preventing further fluctuations in the repulsive magnetic force and improving the stability of seat lifting, thereby enhancing the passenger's riding experience. Furthermore, continuing to refer to... Figure 1 and Figure 4 In this embodiment, the first magnetic sleeve 1212 includes a magnetic sleeve protrusion 12121, and the first sleeve 112 further includes a first connecting portion 1123 connecting the first sleeve end 1121 and the second sleeve end 1122. The first connecting portion 1123 includes a fixing portion 11231, which is adapted to abut against the magnetic sleeve protrusion 12121. By providing the magnetic sleeve protrusion 12121 and the fixing portion 11231, when the outer contour of the first magnetic sleeve 1212 or the first magnetic ring 1213 cannot be properly fitted with the inner contour of the first support unit 11, the movement of the first magnetic assembly 121 in the first accommodating space is restricted to a small range, thereby reducing fluctuations in repulsive magnetic force. Furthermore, the above-mentioned configuration can reduce the manufacturing precision required for the first magnetic assembly 121, thereby reducing manufacturing difficulty and increasing the yield of the first magnetic assembly 121. In this embodiment, the magnetic sleeve protrusion 12121 and the fixing part 11231 each have corresponding stepped surfaces, thereby achieving mutual contact and limiting.

[0036] Continue to refer to Figure 1 In this embodiment, the first permanent magnet 122 is located inside the first magnetic sleeve 1212 and is fixedly connected to the first magnetic sleeve 1212. That is, the first permanent magnet 122 is located inside the first magnetic component 121 and is fixedly connected to the first magnetic component 121. In addition, the first permanent magnet 122 includes a first magnetic pole surface 1221 facing the second support module 20. The first permanent magnet 122 outputs magnetic force to the second support module 20 through the first magnetic pole surface 1221, and repels the magnetic force output by the second support module 20, thereby generating the repulsive magnetic force mentioned above. Based on this, the first magnetic ring 1213 is sleeved on the first permanent magnet 122, and the first magnetic pole surface 1221 extends from the inner hole of the first magnetic ring 1213 toward the direction close to the second support module 20. The height of the first magnetic pole surface 1221 is the same as or greater than the height of the upper surface of the first magnetic ring 1213. This ensures that the magnetic force output by the first permanent magnet 122 through the first magnetic pole surface 1221 is not negatively weakened by the interference of the closed magnetic circuit of the first magnetic component 121, thereby improving the stability of the magnetic force output by the first magnetic pole surface 1221.

[0037] Continue to refer to Figure 1 In this embodiment, the first permanent magnet 122 includes a through hole extending along a first direction x. Correspondingly, a first positioning member 124 passes through the through hole and includes a first positioning end 1241 and a second positioning end 1242. The first positioning end 1241 abuts against the first permanent magnet 122, and the second positioning end 1242 is fixedly connected to the first magnetic conductive assembly 121. For example, the first positioning member 124 includes a positioning bolt. The second positioning end 1242 of the positioning bolt, having threads, passes through the through hole and is threadedly connected to a threaded hole on the first magnetic conductive sleeve 1212. The first positioning end 1241 of the positioning bolt abuts against the first permanent magnet 122 by tightening the threads, thereby fixing the first permanent magnet 122 to the first magnetic conductive assembly 121. This method ensures a secure connection between the first permanent magnet 122 and the first magnetic conductive assembly 121 while facilitating disassembly and installation, thus improving the convenience of installation and maintenance operations.

[0038] In addition, in this embodiment, the first positioning member 124 can be used to calibrate the relative position of the first magnetic pole surface 1221 and the first magnetic opening 1211 so that the projection of the first magnetic pole surface 1221 along the first direction x does not intersect with the projection of the inner edge of the first magnetic opening 1211, thereby ensuring that the magnetic force output by the first magnetic pole surface 1221 is not disturbed by the first magnetic component 121. For example, both the first magnetic pole surface 1221 and the first magnetically conductive opening 1211 are circular. The first permanent magnet through hole passes through the center of the first magnetic pole surface 1221, and the projection of the threaded hole on the first magnetically conductive sleeve 1212 along the first direction x is located at the center of the first magnetically conductive opening 1211. By having the first positioning member 124 pass through the first permanent magnet through hole and extend into the threaded hole on the first magnetically conductive sleeve 1212, the first permanent magnet through hole and the threaded hole on the first magnetically conductive sleeve 1212 can be located on the same extension line, and this extension line is parallel to the first direction x. This allows the first positioning member 124 to ensure that the centers of the first magnetic pole surface 1221 and the first magnetically conductive opening 1211 overlap in the first direction x, thereby ensuring that when the radius of the first magnetic pole surface 1221 is smaller than the radius of the first magnetically conductive opening 1211, the projection of the first magnetic pole surface 1221 along the first direction x does not intersect with the projection of the inner edge of the first magnetically conductive opening 1211. It should be noted that this application does not limit the fixing method of the first permanent magnet 122 and the first magnetic sleeve 1212. In some embodiments, the first permanent magnet 122 is directly attracted and fixed to the first magnetic sleeve 1212 by magnetic attraction.

[0039] In this embodiment, the material of the first permanent magnet 122 includes neodymium iron boron, but this application does not limit the specific material of the first permanent magnet 122. In other embodiments, the material of the first permanent magnet 122 includes ferrite. It should be noted that by setting the first permanent magnet 122 in the first magnetic unit 12, the first magnetic unit 12 can have magnetic force under normal conditions, so that the first magnetic unit 12 can also achieve basic magnetic force output even without external energy input. This avoids the problem of the first magnetic unit 12 failing magnetically directly when there is no external input, and reduces the risk of a significant reduction in passenger riding experience under extreme conditions.

[0040] Continue to refer to Figure 1 In this embodiment, the first magnetic ring 1213 and the first magnetic pole surface 1221 together cover the first magnetic opening 1211, thereby forming a first magnetic space with the first magnetic sleeve 1212, the first permanent magnet 122, and the first magnetic ring 1213. Specifically, the first permanent magnet 122 and the first magnetic assembly 121 form the first magnetic space. Based on this, the first excitation coil 123 is mounted on the first permanent magnet 122 and located within the first magnetic space. The first magnetic unit 12 is adapted to adjust the magnitude and direction of the current input to the first excitation coil 123 according to the load on the seat, thereby changing the magnitude of the magnetic force output by the first magnetic unit 12 to the second support module 20. Understandably, adjusting the magnitude of the current can change the magnetic force of the first excitation coil 123, and adjusting the direction of the current can change the polarity of the magnetic force output by the first excitation coil 123 to be the same as or opposite to the polarity of the magnetic force output by the first permanent magnet 122 in the same direction. This allows the magnetic force output by the first permanent magnet 122 through the first magnetic pole surface 1221 to be strengthened or weakened, thereby making the magnitude of the magnetic force output by the first magnetic unit 12 to the second support module 20 adjustable. It should be noted that this application does not limit the method of controlling the output magnetic force of the first excitation coil 123. In some embodiments, the first magnetic unit 12 is adapted to adjust the magnitude of the current input to the first excitation coil 123 according to the load on the seat; in other embodiments, the first magnetic unit 12 is adapted to adjust the direction of the current input to the first excitation coil 123 according to the load on the seat.

[0041] It should be noted that by setting the first magnetically conductive space, the projection of the first excitation coil 123 along the first direction x is located on the first magnetically conductive ring 1213. This allows the magnetic field of the first excitation coil 123, except for enhancing or weakening the magnetic force output by the first permanent magnet 122 through the first magnetic pole surface 1221, to flow along the low-impedance closed magnetic circuit formed by the first magnetically conductive sleeve 1212 and the first magnetically conductive ring 1213. This improves the utilization of the input current by the first excitation coil 123, thereby expanding the upper and lower limits of the magnetic force output by the first magnetic unit 12 through the first magnetic pole surface 1221. This provides greater adjustability for seat vibration damping, improving passenger comfort and experience. Furthermore, since the first magnetic unit 12 is located in the first magnetically conductive space, the space also acts as a magnetic field shield, reducing interference from the magnetic field generated by the first magnetic unit 12 to electronic components outside the space and improving the operational stability of the magnetic levitation support device 100.

[0042] Continue to refer to Figure 1 In this embodiment, the second support module 20 includes a second support unit 21, a second magnetic unit 22, and a seat connector 23. The second support unit 21 is connected to the first support unit 11, and the second magnetic unit 22 is located within the chamber 210 of the second support unit 21. Furthermore, the seat connector 23 includes a connecting sleeve 231, which has opposing first connecting ends 2311 and second connecting ends 2312. The first connecting end 2311 extends into the chamber 210 and is fixedly connected to the second magnetic unit 22, while the second connecting end 2312 is adapted to be fixedly connected to the seat. In this embodiment, the second magnetic unit 22 generates magnetic force, which repels the magnetic force generated by the first magnetic unit 12, causing the second magnetic unit 22 to move along a first direction x within the chamber 210, thereby raising and lowering the seat.

[0043] Continue to refer to Figure 1The second support unit 21 includes a second sleeve 211, a wear-resistant connecting ring 212, and a sealing ring 213. The second sleeve 211 includes a chamber 210 extending along a first direction, and opposing third sleeve end 2111 and fourth sleeve end 2112, with the fourth sleeve end 2112 having a connecting opening 21121. The connecting opening 21121 connects to the chamber 210. In this embodiment, the third sleeve end 2111 is fixedly connected to the first sleeve end 1121, thereby fixing the first support unit 11 to the second support unit 21. The first connecting end 2311 of the connecting sleeve 231 extends through the connecting opening 21121 into the chamber 210, thereby fixing it to the second magnetic unit 22 located within the chamber 210. In this embodiment, the wear-resistant ring 212 of the connector is disposed on the inner wall of the connecting opening 21121, and the wear-resistant ring 212 abuts against the connecting sleeve 231, thereby creating a gap between the inner wall of the connecting sleeve 231 and the inner wall of the second sleeve 211, thus reducing the wear of the connecting sleeve 231 and improving the service life of the seat connector 23. Furthermore, the sealing ring 213 is disposed on the inner wall of the connecting opening 21121, located on the side of the wear-resistant ring 212 away from the second magnetic unit 22, and abuts against the outer wall of the connecting sleeve 231, thereby preventing external dust from entering the cavity 210 through the connecting opening 21121 and affecting the normal operation of the second magnetic unit 22, thus improving the service life and operational stability of the second support module 20.

[0044] Continue to refer to Figure 1In this embodiment, the second magnetic unit 22 includes a second magnetically conductive assembly 221, a second permanent magnet 222, a second excitation coil 223, and a second positioning member 224. The second permanent magnet 222 is fixedly connected to the second magnetically conductive assembly 221 via the second positioning member 224. The second excitation coil 223 is mounted on the second magnet 222. The second magnetic unit 22 outputs magnetic force through the second permanent magnet 222 and the second excitation coil 223. The second magnetically conductive assembly 221 improves the magnetic field utilization rate of the second permanent magnet 222 and the second excitation coil 223 by accommodating the second permanent magnet 222 and the second excitation coil 223 and providing a closed magnetic circuit. Specifically, in this embodiment, the second magnetically conductive assembly 221 is located within the chamber 210 and is fixedly connected to the first connecting end 2311. The second magnetically conductive assembly 221 includes a second magnetically conductive opening 2211 facing the first support unit 11. Furthermore, the second magnetically conductive assembly 221 is adapted to move within the chamber 210 along a first direction x. It should be noted that in this embodiment, the second excitation coil 223 is wound on a coil holder, and then the coil holder is fitted onto the second permanent magnet 222, thereby assembling the second excitation coil 223 onto the second permanent magnet 222. Furthermore, the coil holder and the second permanent magnet 222 have a small interference fit, while the coil holder and the second magnetic sleeve 2212 have a clearance fit. The coil holder is fixed by abutting against the second magnetic ring 2213.

[0045] Continue to refer to Figure 1 In this embodiment, the second magnetically conductive assembly 221 further includes a second magnetically conductive sleeve 2212, a second magnetically conductive ring 2213, and a wear-resistant sleeve belt 2214. The second magnetically conductive sleeve 2212 includes a second magnetically conductive opening 2211. In this embodiment, the second magnetically conductive sleeve 2212 is fixedly connected to the first connecting end 2311. Specifically, in this embodiment, the second magnetically conductive sleeve 2212 includes a magnetically conductive base plate 22121, a connecting ring 22122, and a magnetically conductive sleeve 22123. The connecting ring 22122 and the magnetically conductive sleeve 22123 are respectively connected to opposite sides of the magnetically conductive base plate 22121, and the connecting ring 22122 is fixedly connected to the seat connector 23. In this embodiment, the connecting ring 22122 and the seat connector 23 have corresponding internal and external threads, respectively, thereby ensuring a threaded and tight connection between the connecting ring 22122 and the seat connector 23, facilitating disassembly and installation, and improving the convenience of installation and subsequent maintenance while ensuring connection reliability. In this embodiment, the wear-resistant ring band 2214 is sleeved on the second magnetic sleeve 2212 and abuts against the inner wall of the chamber 210, so that there is a gap between the second magnetic sleeve 2212 and the inner wall, thereby avoiding direct contact between the second magnetic sleeve 2212 and the inner wall of the second sleeve 211, reducing the wear risk of the second magnetic sleeve 2212, and thus improving the service life of the second magnetic sleeve 2212.

[0046] Continue to refer to Figure 1In this embodiment, the second permanent magnet 222 is located inside the second magnetic sleeve 2212 and is fixedly connected to the second magnetic sleeve 2212. That is, the second permanent magnet 222 is located inside the second magnetic component 221 and is fixedly connected to the second magnetic component 221. Furthermore, the second permanent magnet 222 includes a second magnetic pole surface 2221 facing the first support module 10. The second permanent magnet 222 outputs magnetic force to the first support module 10 through the second magnetic pole surface 2221, and repels the magnetic force output by the first support module 10, thereby generating the repulsive magnetic force mentioned above. Based on this, the second magnetic ring 2213 is sleeved on the second permanent magnet 222, and the second magnetic pole surface 2221 extends from the inner hole of the second magnetic ring 2213 toward the direction close to the first support module 10. The height of the second magnetic pole surface 2221 is either the same as or less than the height of the upper surface of the second magnetic ring 2213. This ensures that the magnetic force output by the second permanent magnet 222 through the second magnetic pole surface 2221 is not negatively weakened by interference from the closed magnetic circuit of the second magnetic component 221, thereby improving the stability of the magnetic force output by the second magnetic pole surface 2221. In this embodiment, after the second magnetic ring 2213 is sleeved on the second permanent magnet 222, it is fixedly connected to the second magnetic sleeve 2212, allowing the second magnetic ring 2213 to move with the second magnetic sleeve 2212. For example, the second magnetic ring 2213 and the second magnetic sleeve 2212 are fixedly connected by welding.

[0047] Continue to refer to Figure 1 In this embodiment, the second permanent magnet 222 includes a through hole extending along the first direction x. Correspondingly, the second positioning member 224 passes through the through hole and includes a third positioning end 2241 and a fourth positioning end 2242. The third positioning end 2241 abuts against the second permanent magnet 222, and the fourth positioning end 2242 is fixedly connected to the second magnetic conductive assembly 221. For example, the second positioning member 224 includes a positioning bolt. The threaded fourth positioning end 2242 of the positioning bolt passes through the through hole and is threadedly connected to a threaded hole on the second magnetic conductive sleeve 2212. The third positioning end 2241 of the positioning bolt is tightened to abut against the second permanent magnet 222, thereby fixing the second permanent magnet 222 to the second magnetic conductive assembly 221. This method ensures a secure connection between the second permanent magnet 222 and the second magnetic conductive assembly 221 while facilitating disassembly and installation, thus improving the convenience of installation and maintenance operations.

[0048] In addition, in this embodiment, the second positioning member 224 can be used to calibrate the relative position of the second magnetic pole surface 2221 and the second magnetically conductive opening 2211 so that the projection of the second magnetic pole surface 2221 along the first direction x does not intersect with the projection of the inner edge of the second magnetically conductive opening 2211, thereby ensuring that the magnetic force output by the second magnetic pole surface 2221 is not disturbed by the second magnetically conductive component 221. For example, both the second magnetic pole surface 2221 and the second magnetically conductive opening 2211 are circular. The second permanent magnet through hole passes through the center of the second magnetic pole surface 2221, and the projection of the threaded hole on the second magnetically conductive sleeve 2212 along the first direction x is located at the center of the second magnetically conductive opening 2211. By having the second positioning member 224 pass through the second permanent magnet through hole and extend into the threaded hole on the second magnetically conductive sleeve 2212, the second permanent magnet through hole and the threaded hole on the second magnetically conductive sleeve 2212 can be located on the same extension line, and this extension line is parallel to the first direction x. This allows the second positioning member 224 to ensure that the center of the second magnetic pole surface 2221 and the center of the second magnetically conductive opening 2211 overlap in the first direction x, thereby ensuring that when the radius of the second magnetic pole surface 2221 is smaller than the radius of the second magnetically conductive opening 2211, the projection of the second magnetic pole surface 2221 along the first direction x does not intersect with the projection of the inner edge of the second magnetically conductive opening 2211. It should be noted that this application does not limit the fixing method of the second permanent magnet 222 and the second magnetic sleeve 2212. In some embodiments, the second permanent magnet 222 is directly attracted and fixed to the second magnetic sleeve 2212 by magnetic attraction.

[0049] In this embodiment, the material of the second permanent magnet 222 includes neodymium iron boron, but this application does not limit the specific material of the second permanent magnet 222. In other embodiments, the material of the second permanent magnet 222 includes ferrite. It should be noted that by setting the second permanent magnet 222 in the second magnetic unit 22, the second magnetic unit 22 can have magnetic force under normal conditions, so that the second magnetic unit 22 can also achieve basic magnetic force output even without external energy input. This avoids the problem of the second magnetic unit 22 failing magnetically directly when there is no external input, and reduces the risk of a significant reduction in passenger riding experience under extreme conditions.

[0050] Continue to refer to Figure 1In this embodiment, the second magnetic ring 2213 is connected to the end of the magnetic sleeve 22123 near the first support module 10, that is, the second magnetic ring 2213 is connected to the second magnetic sleeve 2212. Furthermore, the second magnetic ring 2213 and the second magnetic pole surface 2221 together cover the second magnetic opening 2211, thereby forming a second magnetic space with the second magnetic sleeve 2212, the second permanent magnet 222, and the second magnetic ring 2213; that is, the second permanent magnet 222 and the second magnetic assembly 221 form a second magnetic space. Based on this, the second excitation coil 223 of this embodiment is mounted on the second permanent magnet 222 and located within the second magnetic space. The second magnetic unit 22 is adapted to change the magnitude and direction of the current input to the second excitation coil 223 according to the load on the seat, thereby changing the magnitude of the magnetic force output by the second magnetic unit 22 to the first support module 10. Understandably, adjusting the magnitude of the current can change the magnetic force of the second excitation coil 223, and adjusting the direction of the current can change the polarity of the magnetic force output by the second excitation coil 223 to be the same as or opposite to the polarity of the magnetic force output by the second permanent magnet 122 in the same direction. This allows the magnetic force output by the second permanent magnet 222 through the second magnetic pole surface 2221 to be strengthened or weakened, thereby making the magnitude of the magnetic force output by the second magnetic unit 22 to the first support module 10 adjustable. It should be noted that this application does not limit the method of controlling the output magnetic force of the second excitation coil 223. In some embodiments, the second magnetic unit 22 is adapted to adjust the magnitude of the current input to the second excitation coil 223 according to the load on the seat; in other embodiments, the second magnetic unit 22 is adapted to adjust the direction of the current input to the second excitation coil 223 according to the load on the seat.

[0051] It should be noted that by setting the second magnetic space, the projection of the second excitation coil 223 along the first direction x is located on the second magnetic ring 2213. This allows the magnetic field of the second excitation coil 223, except for enhancing or weakening the magnetic force output by the second permanent magnet 222 through the second magnetic pole surface 2221, to flow along the low-impedance closed magnetic circuit formed by the second magnetic sleeve 2212 and the second magnetic ring 2213. This improves the utilization of the input current by the second excitation coil 223, thereby expanding the upper and lower limits of the magnetic force output by the second magnetic unit 22 through the second magnetic pole surface 2221. This provides greater adjustability for seat vibration damping, improving passenger comfort and experience. Furthermore, since the second magnetic unit 22 is located in the second magnetic space, the second magnetic space also acts as a magnetic field shield, reducing interference from the magnetic field generated by the second magnetic unit 22 on electronic components outside the second magnetic space and improving the operational stability of the magnetic levitation support device 100.

[0052] Continue to refer to Figure 1 , Figure 5 and Figure 6In this embodiment, the magnetically conductive base plate 22121 has a first coil outlet 41, and correspondingly, the second connecting end 2312 of the connecting sleeve 231 has a second coil outlet 42. Based on this, the lead wire of the second excitation coil 223 extends sequentially through the first coil outlet 41, the central hole of the connecting ring 22122, the central through hole of the connecting sleeve 231, and the second coil outlet 42 to the outside of the second support module 20, thereby allowing external current to be input into the second excitation coil 223 through the lead wire, thereby driving the second excitation coil 223 to adjust the magnitude of the magnetic force output by the second magnetic unit 22. Further, the second connecting end 2312 of the connecting sleeve 231 includes a sleeve protrusion 23121. The sleeve protrusion 23121 is located outside the second support unit 21, has the second coil outlet 42, and is adapted to abut against the end of the second support unit 21 away from the first support module 10. With the above settings, when the connecting sleeve 231 moves along the first direction x with the second magnetic unit 22, the lead wire of the second excitation coil 223 led out from the second coil outlet 42 will not be subjected to the combined compression of the connecting sleeve 231 and the second support unit 21, thereby ensuring that the lead wire can effectively provide electrical energy to the second excitation coil 223 and improving the working stability of the second magnetic unit.

[0053] The structure of the first magnetic unit 12 and the second magnetic unit 22 has been briefly described above. The following will continue to refer to... Figure 7 The process of adjusting the repulsive magnetic force of the first magnetic unit 12 and the second magnetic unit 22 will be explained in detail. Figure 7As shown, the first magnetic pole surface 1221 of the first magnetic unit 12 corresponds to the N pole of the first permanent magnet 122, and the second magnetic pole surface 2221 of the second magnetic unit 22 corresponds to the N pole of the second permanent magnet 222. This generates a repulsive magnetic force between the first magnetic unit 12 and the second magnetic unit 22, thereby creating a magnetic levitation height h between them. Based on this, the first excitation coil 123 adjusts whether its output magnetic lines of force are in the same or opposite direction as those output by the first permanent magnet 122, thus increasing or decreasing the magnetic force output by the first magnetic unit 12 through the first magnetic pole surface 1221. Similarly, the second excitation coil 223 adjusts whether its output magnetic lines of force are in the same or opposite direction as those output by the second permanent magnet 222, thus increasing or decreasing the magnetic force output by the second magnetic unit 22 through the second magnetic pole surface 2221. Therefore, the magnitude of the repulsive magnetic force can be further adjusted to increase or decrease the magnetic levitation height h, thereby achieving seat height adjustment. Furthermore, the magnetic field lines a1 of the first permanent magnet 122 and a2 of the first excitation coil 123 both return to the first permanent magnet 122 and the first excitation coil 123 through the closed magnetic circuit formed by the first magnetic ring 1213 and the first magnetic sleeve 1212, thereby reducing magnetic energy loss. Correspondingly, the magnetic field lines a3 of the second permanent magnet 222 and a4 of the second excitation coil 223 both return to the second permanent magnet 222 and the second excitation coil 223 through the closed magnetic circuit formed by the second magnetic ring 2213 and the second magnetic sleeve 2212, thereby reducing magnetic energy loss.

[0054] It is understood that in this embodiment, by arranging the first magnetic pole surface 1221 of the first magnetic unit 12 and the second magnetic pole surface 2221 of the second magnetic unit 22 opposite to each other and having the same polarity, a repulsive magnetic force is generated between the first magnetic unit 12 and the second magnetic unit 22. This creates a levitation space between the second magnetic unit 22 and the first magnetic unit 12, and the levitation space absorbs the vibration transmitted from the vehicle to the seat, thereby improving passenger comfort. Furthermore, both the first magnetic unit 12 and the second magnetic unit 22 are adapted to adjust the magnitude of their magnetic force, allowing the second magnetic unit 22 to move along the first direction x within the chamber 210. This allows for real-time seat height adjustment based on external vibrations, achieving real-time vibration reduction and further improving passenger comfort and experience. It should be noted that in this embodiment, since each of the first magnetic unit 12 and the second magnetic unit 22 is equipped with an excitation coil, the response time for magnetic force adjustment is reduced compared to using only one excitation coil, thus shortening the time required for seat height adjustment and further improving the passenger experience. Furthermore, this application does not limit the first magnetic unit 12 and the second magnetic unit 22 to be suitable for adjusting the magnitude of the magnetic force. In some embodiments, the first magnetic unit 12 does not include the first excitation coil 123 and the second magnetic unit includes the second excitation coil 223, thereby enabling the second magnetic unit 22 to adjust the magnitude of the magnetic force. In other embodiments, the first magnetic unit 12 includes the first excitation coil 123 and the second magnetic unit does not include the second excitation coil 223, thereby enabling the first magnetic unit 12 to adjust the magnitude of the magnetic force.

[0055] Continue to refer to Figure 1 In this embodiment, the second support unit 21 is adapted to move along a second direction y perpendicular to the first direction x, so as to adjust its relative position with the first support unit 11, thereby adjusting the projected area of ​​the first magnetic pole surface 1221 projected onto the second magnetic pole surface 2221 along the first direction x. Through the above arrangement, without changing the magnitude of the output magnetic force of the first magnetic unit 12 and the second magnetic unit 22, the magnitude of the repulsive magnetic force between the first magnetic unit 12 and the second magnetic unit 22 can be further adjusted, so that passengers of different weights can initially be located in the same seat balance position, thereby improving the subsequent seat vibration damping effect.

[0056] In this embodiment, the first support unit 11 includes a first through hole 43, and the second support unit 21 includes a second through hole 44. Based on this, the support positioning member 30 passes through the first through hole 43 and the second through hole 44 to limit the range of movement of the second support unit 21 along the second direction y. This ensures that within the movement range of the second support unit 21, a repulsive magnetic force always exists between the first magnetic unit 12 and the second magnetic unit 22, thereby preventing the seat's levitation function from failing during the movement of the second support unit 21 and improving the stability of the magnetic levitation support device 100. Furthermore, the support positioning member 30 is adapted to fix the first support unit 11 and the second support unit 21 so that the projected area remains unchanged. That is, after the second support unit 21 determines its relative position with the first support unit 11, the support positioning member 30 can fix the first support unit 11 and the second support unit 21 together, thereby maintaining the current projected area unchanged and improving the stability of the seat height adjustment. In this embodiment, both the first through hole 43 and the second through hole 44 are elongated holes extending along the second direction y. However, this application does not limit the shape of the first through hole 43 and the second through hole 44. In some embodiments, the first through hole 43 is an elongated hole extending along the second direction y, and in some embodiments, the second through hole 44 is an elongated hole extending along the second direction y. For example, refer to... Figure 8 The third sleeve end 2111 of the second support unit 21 has four elongated second through holes 44 extending along the second direction y, which can restrict the movement distance of the second support unit 21 while, together with the support positioning member 30, enable the first support module 10 and the second support module 20 to be firmly connected.

[0057] The above has briefly explained the relevant settings for adjusting the projected area of ​​the second support unit 21. Next, please refer to... Figure 9 The adjustment of the projected area will be explained in detail. For example... Figure 9As shown, when the second support module 20 and the first support module 10 change from a state where they are directly opposite each other (i.e., the first magnetic pole surface 1221 and the second magnetic pole surface 2221 have the largest projected area in the first direction x) to a state where the second support module 20 moves along the second direction y (i.e., moves to the left in the figure), the projected width w of the first magnetic pole surface 1221 and the second magnetic pole surface 2221 in the first direction x decreases accordingly, thereby reducing the projected area. This allows the repulsive magnetic force between the second support module 20 and the first support module 10 to be further adjusted. For example, during the use of the magnetic levitation support device 100, the second support unit 21 and the first support unit 11 are pre-staggered to form a preset projected area, and this preset projected area is not the maximum or minimum value of the projected area. Subsequently, based on the passenger's weight, the projected area can be reduced or increased by moving the second support unit 21 to position the corresponding passenger at the initial seat height, such as the height corresponding to the middle position of the entire seat travel (i.e., the seat balance position), so that the subsequent upper limit of the seat's height and the upper limit of its height are the same. Finally, when external vibrations are transmitted to the magnetic levitation support device 100, the seat can move up and down near the initial seat height. By adjusting the repulsive magnetic force through the excitation coil, the magnitude of the levitation support force is changed, thereby controlling the up and down displacement of the seat in real time, thus counteracting the vibrations transmitted from the outside to the seat, thereby achieving vibration reduction of the seat and improving the passenger's riding comfort.

[0058] It should be noted that in some related technologies, the active adjustment of the seat balance position for passengers of different weights is entirely achieved using excitation coils. While this can achieve certain results, it limits the seat's applicability to passenger weight. Furthermore, after most of the excitation coil's adjustable margin is used to adjust the seat balance, only a small portion is available for subsequent seat vibration damping, thus affecting the damping effect and consequently reducing passenger comfort and experience. In contrast, this embodiment, by adjusting the projected area, avoids or minimizes the use of the excitation coil's active adjustment capability, allowing the excitation coil to retain more adjustable margin for seat vibration damping. Therefore, this embodiment, by moving the second support module 20, improves the adjustable range and applicability without adjusting the excitation coil, resulting in a better passenger experience.

[0059] Understandably, in this embodiment, by moving the second support unit 21 along the second direction y, the projected area of ​​the first magnetic pole surface 1221 projected onto the second magnetic pole surface 2221 along the first direction x can be adjusted, thereby giving the seat a wider range of applicability and adjustability. For example, by changing the projected area, passengers of different weights are initially positioned at approximately the same seat height. Then, with slight compensation via the excitation coil, the same seat height, i.e., the seat's balance position, can be achieved. This allows the excitation coil to have sufficient adjustable margin to increase or decrease the magnetic force of the corresponding first magnetic unit 12 or second magnetic unit 22 when external vibrations are transmitted to the magnetic levitation support device 100. This, in turn, controls the seat's up-and-down movement in real time to reduce vibration, thereby reducing the impact of vibration on the passengers and improving passenger comfort.

[0060] It should be noted that this application does not limit the magnetic materials of the first magnetically conductive component 121 and the second magnetically conductive component 221. In some embodiments, the magnetically conductive material includes electrical pure iron. Furthermore, this application does not limit the material of the coil retainer in the first support module 10 and the second support module 20. In some embodiments, the coil retainer is made of plastic and has a small thickness, thereby facilitating the winding of the corresponding excitation coil and reducing the volume of the magnetic levitation support device 100. This application also does not limit the material of the first support unit 11 and the second support unit 21. In some embodiments, the materials of the first support unit 11 and the second support unit 21 include non-magnetically conductive materials, such as aluminum alloy, thereby further enhancing the shielding effect on the internal magnetic field of the magnetic levitation support device 100. In this embodiment, the first permanent magnet 122 and the second permanent magnet 222 are cylinders, but this application does not limit the shape of the first permanent magnet 122 and the second permanent magnet 222. In some embodiments, the first permanent magnet 122 and the second permanent magnet 222 are cubes.

[0061] Reference Figure 10 One embodiment of this application also proposes a seating device 200, which is applied to a vehicle. For example... Figure 10 As shown, the seat assembly 200 includes a seat (not shown) and four magnetic levitation support devices 100 according to any of the above embodiments. The seat connector 23 of each magnetic levitation support device 100 is fixedly connected to the seat. Specifically, the seat assembly 200 also includes an adapter plate 201, whose opposite sides are fixedly connected to the seat and the seat connector 23 of each magnetic levitation support device 100, thereby facilitating subsequent disassembly and maintenance, and improving the overall flatness of the multiple magnetic levitation support devices 100 to optimize passenger comfort. It should be noted that this application does not limit the number of magnetic levitation support devices 100 in the seat assembly 200; in some embodiments, the seat assembly 200 includes one magnetic levitation support device 100.

[0062] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0063] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0064] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0065] Although this application has been described with reference to specific embodiments, those skilled in the art should recognize that the above embodiments are only used to illustrate this application, and various equivalent changes or substitutions can be made without departing from the spirit of this application. Therefore, any changes or modifications to the above embodiments within the essential spirit of this application will fall within the scope of the claims of this application.

Claims

1. A magnetic levitation support device, characterized in that, Applied to seats, including: The first support module includes a first support unit and a first magnetic unit, wherein the first magnetic unit is located inside the first support unit and is fixedly connected to the first support unit; The second support module includes a second support unit, a second magnetic unit, and a seat connector. The second support unit is connected to the first support unit, and the second magnetic unit is located within the cavity of the second support unit. The seat connector includes a first connecting end and a second connecting end opposite to each other. The first connecting end extends into the cavity and is fixedly connected to the second magnetic unit, and the second connecting end is adapted to be fixedly connected to the seat. In this configuration, the first magnetic pole face of the first magnetic unit and the second magnetic pole face of the second magnetic unit are arranged opposite each other and have the same polarity. The first magnetic unit and / or the second magnetic unit are adapted to adjust the magnitude of the magnetic force, so that the second magnetic unit moves along a first direction within the cavity, thereby driving the seat to rise and fall. The second support unit is adapted to move along a second direction perpendicular to the first direction to adjust its relative position with the first support unit, thereby adjusting the projected area of ​​the first magnetic pole surface projected onto the second magnetic pole surface along the first direction.

2. The magnetic levitation support device as described in claim 1, characterized in that, The first support unit includes a first through hole, the second support unit includes a second through hole, and the magnetic levitation support device further includes: A support positioning member passes through the first through hole and the second through hole to limit the range of movement of the second support unit along the second direction. The support positioning member is adapted to fix the first support unit and the second support unit so that the projected area remains unchanged.

3. The magnetic levitation support device as described in claim 2, characterized in that, The first through hole and / or the second through hole are elongated holes extending along the second direction.

4. The magnetic levitation support device as described in claim 1, characterized in that, The first magnetic unit includes: A first magnetically conductive component is located within the first support unit, and the first magnetically conductive component includes a first magnetically conductive opening facing the second support module; The first permanent magnet includes the first magnetic pole surface. The first permanent magnet is located inside the first magnetic conductive component and is fixedly connected to the first magnetic conductive component. The first permanent magnet and the first magnetic conductive component form a first magnetic conductive space. A first excitation coil is mounted on the first permanent magnet and located within the first magnetic space, wherein the first magnetic unit is adapted to change the magnetic force of the first magnetic unit by adjusting the magnitude and / or direction of the current input to the first excitation coil according to the load on the seat.

5. The magnetic levitation support device as described in claim 4, characterized in that, The first permanent magnet includes a first permanent magnet through hole extending along the first direction, and the first magnetic unit further includes: The first positioning element passes through the through hole of the first permanent magnet. The first positioning element includes a first positioning end and a second positioning end that are opposite each other. The first positioning end abuts against the first permanent magnet, and the second positioning end is fixedly connected to the first magnetic conductive component.

6. The magnetic levitation support device as described in claim 4, characterized in that, The first magnetically conductive component includes: A first magnetic sleeve includes a first magnetic opening, wherein the first permanent magnet is located inside the first magnetic sleeve; A first magnetic ring is sleeved on the first permanent magnet and abuts against the first magnetic sleeve. The first magnetic ring and the first magnetic pole surface together cover the first magnetic opening. The first magnetic sleeve, the first permanent magnet and the first magnetic ring form the first magnetic space.

7. The magnetic levitation support device as described in claim 6, characterized in that, The first support unit includes: A base plate, which abuts against the first magnetic sleeve; The first sleeve includes a first sleeve end and a second sleeve end, the first sleeve end includes a first end face and a second end face, the first end face abuts against the second support unit, the second end face abuts against the first magnetic ring, and the second sleeve end is fixedly connected to the base plate.

8. The magnetic levitation support device as described in claim 7, characterized in that, The first magnetic sleeve includes a magnetic sleeve protrusion, and the first sleeve also includes a first connecting portion connecting the end of the first sleeve and the end of the second sleeve. The first connecting portion includes a fixing portion, which is adapted to abut against the magnetic sleeve protrusion.

9. The magnetic levitation support device as described in claim 1, characterized in that, The second magnetic unit includes: The second magnetic conductive component includes a second magnetic conductive opening facing the first support module. The second magnetic conductive component is located in the cavity and is fixedly connected to the first connection end. The second magnetic conductive component is adapted to move in the cavity along the first direction. The second permanent magnet includes the second magnetic pole surface. The second permanent magnet is located inside the second magnetic conductive assembly and is fixedly connected to the second magnetic conductive assembly. The second permanent magnet and the second magnetic conductive assembly form a second magnetic conductive space. The second excitation coil is mounted on the second permanent magnet and located within the second magnetic space. The second magnetic unit is adapted to change the magnetic force of the second magnetic unit by adjusting the magnitude and / or direction of the current input to the second excitation coil according to the load on the seat.

10. The magnetic levitation support device as described in claim 9, characterized in that, The second magnetic permeability component includes: The second magnetic sleeve includes the second magnetic opening, and the second magnetic sleeve is fixedly connected to the first connecting end, wherein the second permanent magnet is located inside the second magnetic sleeve; The second magnetic ring is sleeved on the second permanent magnet and connected to the second magnetic sleeve. The second magnetic ring and the second magnetic pole surface together cover the second magnetic opening. The second magnetic sleeve, the second permanent magnet and the second magnetic ring form the second magnetic space.

11. The magnetic levitation support device as described in claim 10, characterized in that, The second magnetic permeability component also includes: A wear-resistant sleeve is fitted onto the second magnetic sleeve and abuts against the inner wall of the chamber, so that there is a gap between the second magnetic sleeve and the inner wall.

12. The magnetic levitation support device as described in claim 10, characterized in that, The second magnetic sleeve includes a magnetic base plate, a connecting ring, and a magnetic sleeve. The connecting ring and the magnetic sleeve are respectively connected to the opposite sides of the magnetic base plate. The connecting ring is fixedly connected to the seat connector. The magnetic base plate has a first coil outlet. The seat connector includes a connecting sleeve, which has a second coil outlet. The lead wire of the second excitation coil extends to the outside of the second support module through the first coil outlet, the central hole of the connecting ring, the central through hole of the connecting sleeve, and the second coil outlet in sequence.

13. The magnetic levitation support device as described in claim 12, characterized in that, The connecting sleeve includes a sleeve protrusion located outside the second support unit. The sleeve protrusion has a second coil outlet and is adapted to abut against the end of the second support unit away from the first support module.

14. The magnetic levitation support device as described in claim 1, characterized in that, The second support unit includes: A connecting opening is provided for connection to the chamber, wherein the first connecting end extends into the chamber through the connecting opening; A wear-resistant ring is provided on the inner wall of the connection opening, and the wear-resistant ring abuts against the seat connector.

15. A seating device, characterized in that, Applied to vehicles, including: Seats; At least one magnetic levitation support device as described in any one of claims 1 to 14, wherein the seat connector of the magnetic levitation support device is fixedly connected to the seat.

Images