Electromagnetic shock absorber and vehicle with same

Abstract

An electromagnetic shock absorber and a vehicle with the electromagnetic shock absorber are provided, the electromagnetic shock absorber comprises a cylinder body and a supporting rod, the supporting rod is movably arranged in the cylinder body along the axis of the supporting rod, a piston is arranged at one end, extending into the cylinder body, of the supporting rod, and the piston is arranged in the cylinder body. The piston is arranged in the cylinder to divide the cylinder into a first buffering cavity and a second buffering cavity which are used for being filled with buffering media, a flow channel communicated with the first buffering cavity and the second buffering cavity is formed in the piston, a coil is arranged on the cylinder in the axis direction of the cylinder, a magnet is arranged on the supporting rod, and the magnet is arranged in the flow channel. The axis direction of the magnet is the same as the axis direction of the supporting rod. The electromagnetic shock absorber can realize dynamic lifting or lowering of a vehicle body.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle vibration reduction structures, in particular to an electromagnetic vibration reducer and a vehicle with the same. Background Art

[0002] With the development of the automobile industry, people have higher and higher requirements for the maneuverability and comfort of automobiles. As a system that balances maneuverability and comfort, suspension needs to balance maneuverability and comfort through shock absorbers.

[0003] In order to achieve a better vibration reduction effect, in the prior art, a solenoid valve is provided on the shock absorber to adjust the damping force of the shock absorber in real time through the solenoid valve. However, the above structure cannot dynamically raise or lower the vehicle body and change the vehicle body posture. Utility Model Content

[0004] In order to solve the above-mentioned problem, the utility model provides an electromagnetic shock absorber and a vehicle having the same, wherein the electromagnetic shock absorber can realize dynamic raising or lowering of a vehicle body.

[0005] The utility model provides an electromagnetic shock absorber, comprising a cylinder and a support rod, wherein the support rod is movably arranged in the cylinder along its own axis, a piston is arranged on one end of the support rod extending into the cylinder to divide the cylinder into a first buffer chamber and a second buffer chamber for filling a buffer medium, a flow channel connecting the first buffer chamber and the second buffer chamber is formed on the piston, a coil is arranged on the cylinder along the axial direction of the cylinder, a magnet is arranged on the support rod, and the axial direction of the magnet is the same as the axial direction of the support rod.

[0006] Furthermore, the coil is wound on the outer side wall of the cylinder, and a protective cover is arranged outside the coil.

[0007] Furthermore, the magnet is sleeved on the support rod and is located above the piston.

[0008] Furthermore, buffer pads are provided at both ends of the cylinder.

[0009] Furthermore, along the axial direction of the cylinder, at different positions of the cylinder, the number of turns of the coil per unit length is not equal.

[0010] Furthermore, along the axial direction of the cylinder, from the middle of the cylinder to the two ends of the cylinder, the number of turns of the coil per unit length gradually decreases.

[0011] Furthermore, the magnet is integrated on the piston, and the flow channel is formed in the magnet.

[0012] Furthermore, a coating layer covering the magnet is arranged outside the magnet.

[0013] Furthermore, the flow channel is arranged inside the piston and penetrates the piston along the length direction of the support rod;

[0014] Alternatively, the flow channel is formed by an inward depression of the outer surface of the piston and penetrates the piston along the length direction of the support rod.

[0015] The utility model also provides a vehicle, comprising the electromagnetic shock absorber mentioned above.

[0016] In summary, when using the electromagnetic shock absorber provided in this embodiment, a buffer medium, such as a buffer gas or a buffer liquid, can be first injected into the cylinder. When the vehicle is moving, the buffer medium can flow between the first buffer chamber and the second buffer chamber to reduce the vibration of the vehicle. When it is necessary to lift or lower the vehicle, currents in different directions can be passed into the coil so that the coil generates magnetic fields in different directions. The magnetic field will exert a force on the magnet, drive the magnet to move, and then raise or lower the support rod connected to the magnet. At this time, the buffer medium in the first buffer chamber and the second buffer chamber will flow through the flow channel to ensure the stability of the entire electromagnetic shock absorber. By controlling the magnitude of the current, the distance of the rise or fall of the support rod is controlled. That is, in this embodiment, by setting the coil and the magnet, and making the axial direction of the magnet the same as the axial direction of the support rod, it is possible to achieve dynamic lifting or lowering of the vehicle body while ensuring the vibration reduction function.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 Shown is a schematic cross-sectional structure diagram of an electromagnetic vibration absorber provided in the first embodiment of the utility model.

[0020] Figure 2 Shown is a schematic cross-sectional structure diagram of an electromagnetic vibration absorber provided in the second embodiment of the utility model.

[0021] Figure 3 Shown is a schematic cross-sectional structure diagram of an electromagnetic vibration absorber provided in the third embodiment of the utility model.

[0022] Figure 4 Shown is a schematic cross-sectional structure diagram of an electromagnetic vibration absorber provided in the fourth embodiment of the utility model.

[0023] Explanation of the reference numerals: 10, cylinder; 11, first buffer chamber; 12, second buffer chamber; 20, support rod; 21, piston; 211, flow channel; 31, coil; 312, filler; 32, magnet; 321, coating layer. DETAILED DESCRIPTION

[0024] The specific embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like 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. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0027] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0028] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0029] The utility model provides an electromagnetic shock absorber and a vehicle with the same. The electromagnetic shock absorber can realize dynamic raising or lowering of a vehicle body.

[0030] Figure 1 FIG. 1 is a schematic diagram of the cross-sectional structure of the electromagnetic vibration absorber provided in the first embodiment of the utility model. Figure 1 As shown, the electromagnetic shock absorber provided by the first embodiment of the utility model includes a cylinder 10 and a support rod 20, the support rod 20 is movably arranged in the cylinder 10 along its own axis, and a piston 21 is arranged on one end of the support rod 20 extending into the cylinder 10 to divide the cylinder 10 into a first buffer chamber 11 and a second buffer chamber 12, the first buffer chamber 11 and the second buffer chamber 12 are filled with a buffer medium, and a flow channel 211 connecting the first buffer chamber 11 and the second buffer chamber 12 is formed on the piston 21. A coil 31 is arranged on the cylinder 10 along the axial direction of the cylinder 10, and a magnet 32 ​​is arranged on the support rod 20, and the axial direction of the magnet 32 ​​is the same as the axial direction of the support rod 20.

[0031] When using the electromagnetic shock absorber provided in this embodiment, a buffer medium, such as a buffer gas or a buffer liquid, can be first injected into the cylinder 10. When the vehicle is moving, the buffer medium can flow between the first buffer chamber 11 and the second buffer chamber 12 to reduce the vibration of the vehicle. When it is necessary to lift or lower the vehicle, currents in different directions can be passed into the coil 31 so that the coil 31 generates magnetic fields in different directions. The magnetic field will exert a force on the magnet 32, drive the magnet 32 ​​to move, and then raise or lower the support rod 20 connected to the magnet 32. At this time, the buffer medium in the first buffer chamber 11 and the second buffer chamber 12 will flow through the flow channel 211 to ensure the stability of the entire electromagnetic shock absorber. By controlling the magnitude of the current, the distance of the rise or fall of the support rod 20 is controlled. That is, in this embodiment, by setting the coil 31 and the magnet 32, and making the axial direction of the magnet the same as the axial direction of the support rod 20, it is possible to achieve dynamic lifting or lowering of the vehicle body while ensuring the vibration reduction function.

[0032] Please continue to refer to Figure 1 In this embodiment, the coil 31 is wound on the outer wall of the cylinder 10 to facilitate the layout of the coil 31 and reduce the sealing requirements of the electromagnetic shock absorber. A protective cover 311 is provided outside the coil 31 to protect the coil 31 and prevent it from being damaged by the outside.

[0033] The piston 21 is located at the lower end of the support rod 20, and the magnet 32 ​​is sleeved on the support rod 20 and located above the piston 21, that is, located in the first buffer chamber 11. The magnet 32 ​​is arranged in the first buffer chamber 11, rather than in the second buffer chamber 12, that is, not arranged below the piston 21, which can prevent the magnet 32 ​​from affecting the downward stroke of the piston 21, so that the piston 21 has a larger downward stroke, so as to better reduce vibration. A fixing buckle 22 is arranged on the support rod 20, and the magnet 32 ​​is fixed to the support rod 20 through the fixing buckle 22.

[0034] Buffer pads 13 are provided at both ends of the cylinder 10 to prevent the piston 21 or the magnet 32 ​​from colliding with the cylinder 10 during the movement of the support rod 20 .

[0035] In this embodiment, the flow channel 211 may be disposed inside the piston 21 and penetrate the piston 21 along the length direction of the support rod 20 .

[0036] Figure 2 FIG. 1 is a schematic diagram of the cross-sectional structure of an electromagnetic vibration absorber provided in the second embodiment of the utility model. Figure 2 As shown, the electromagnetic shock absorber provided by the second embodiment of the utility model is basically the same as the first embodiment, except that, in this embodiment, along the axial direction of the cylinder 10, the number of turns of the coil 31 per unit length is not the same at different parts of the cylinder 10. Preferably, in this embodiment, along the axial direction of the cylinder 10, from the middle of the cylinder 10 to the two ends of the cylinder 10, the number of turns of the coil 31 per unit length gradually decreases. Through the above-mentioned setting, when the coil 31 is controlled, the magnet 32 ​​in the middle of the cylinder 10 has a greater force than the two ends of the cylinder 10. When the magnet 32 ​​is in the middle of the cylinder 10, the distance of its rise or fall is greater and the reaction is faster; when the magnet 32 ​​is at the two ends of the cylinder 10, the distance of its rise or fall is smaller, and the distance of regulation is more sensitive.

[0037] Furthermore, an insulating filler 312 is filled between the coils 31 . The setting of the filler 312 can ensure that the number of turns of the coil 31 per unit length does not change, thereby ensuring the stability of the coil 31 .

[0038] Figure 3 FIG. 1 is a schematic diagram of the cross-sectional structure of an electromagnetic vibration absorber provided in the third embodiment of the present utility model. Figure 3As shown, the electromagnetic shock absorber provided by the third embodiment of the utility model is basically the same as the first embodiment and the second embodiment, the difference is that, in this embodiment, the magnet 32 ​​is arranged in the piston 21. In other words, the magnet 32 ​​at this time can also assume the function of the piston 21. Compared with the first embodiment and the second embodiment, the integrated arrangement of the magnet 32 ​​and the piston 21 can avoid the magnet 32 ​​occupying the travel of the support rod 20 during movement, that is, the support rod 20 can have a greater upward movement distance. A flow channel 211 connecting the first buffer chamber 11 and the second buffer chamber 12 is formed in the magnet 32.

[0039] Furthermore, in this embodiment, a coating layer 321 covering the magnet 32 ​​is provided outside the magnet 32 ​​. The coating layer 321 is beneficial to fixation of the magnet 32 ​​on the one hand, and is also beneficial to movement of the piston 21 in the cylinder 10 after the magnet 32 ​​is set in the piston 21 on the other hand.

[0040] Figure 4 FIG. 4 is a schematic diagram of the cross-sectional structure of the electromagnetic vibration absorber provided by the fourth embodiment of the utility model. Figure 4 As shown, the electromagnetic shock absorber provided by the embodiment of the utility model is basically the same as the first to third embodiments, except that, in the embodiment, the flow channel 211 is no longer located inside the piston 21, but is instead formed by the outer surface of the piston 21 being recessed toward the inside of the piston, and the recess extends along the axial direction of the support rod 20 and penetrates the piston 21.

[0041] That is, when the piston 21 moves up and down, the buffer solution in the first buffer chamber 11 and the second buffer chamber 12 can flow through the space between the depression on the surface of the piston 21 and the inner wall of the cylinder 10 to buffer the movement of the piston 21 .

[0042] It can be understood that in this embodiment, the magnet 32 ​​can be disposed in the first buffer chamber 11 as shown in the first embodiment, or can be disposed in the piston 21 as shown in the third embodiment.

[0043] In summary, in this embodiment, when using the electromagnetic shock absorber provided in this embodiment, a buffer medium, such as a buffer gas or a buffer liquid, can be first injected into the cylinder 10. When the vehicle is moving, the buffer medium can flow between the first buffer chamber 11 and the second buffer chamber 12 to reduce the vibration of the vehicle. When it is necessary to lift or lower the vehicle, currents in different directions can be passed into the coil 31 so that the coil 31 generates magnetic fields in different directions. The magnetic field will exert a force on the magnet 32, drive the magnet 32 ​​to move, and then raise or lower the support rod 20 connected to the magnet 32. At this time, the buffer medium in the first buffer chamber 11 and the second buffer chamber 12 will flow through the flow channel 211 to ensure the stability of the entire electromagnetic shock absorber. By controlling the magnitude of the current, the distance of the rise or fall of the support rod 20 is controlled. That is, in this embodiment, by setting the coil 31 and the magnet 32, and making the axial direction of the magnet the same as the axial direction of the support rod 20, it is possible to achieve dynamic lifting or lowering of the vehicle body while ensuring the vibration reduction function.

[0044] The utility model also provides a vehicle, which includes the above-mentioned electromagnetic shock absorber. For other technical features of the vehicle, please refer to the prior art and will not be described in detail here.

[0045] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An electromagnetic vibration absorber, characterized in that: It includes a cylinder and a support rod, the support rod is movably arranged in the cylinder along its own axis, a piston is arranged on one end of the support rod extending into the cylinder to divide the cylinder into a first buffer chamber and a second buffer chamber, the first buffer chamber and the second buffer chamber are filled with a buffer medium, a flow channel connecting the first buffer chamber and the second buffer chamber is formed on the piston, a coil is arranged on the cylinder along the axial direction of the cylinder, a magnet is arranged on the support rod, and the axial direction of the magnet is the same as the axial direction of the support rod.

2. The electromagnetic vibration absorber according to claim 1, characterized in that: The coil is wound on the outer wall of the cylinder, and a protective cover is arranged outside the coil.

3. The electromagnetic vibration absorber according to claim 1, characterized in that: The magnet is sleeved on the support rod and located in the first buffer cavity.

4. The electromagnetic vibration absorber according to claim 1, characterized in that: Buffer pads are arranged at both ends of the cylinder.

5. The electromagnetic vibration absorber according to claim 1, characterized in that: Along the axial direction of the cylinder, at different positions of the cylinder, the number of turns of the coil per unit length is not equal.

6. The electromagnetic vibration absorber according to claim 5, characterized in that: Along the axial direction of the cylinder, from the middle of the cylinder to the two ends of the cylinder, the number of turns of the coil per unit length gradually decreases.

7. The electromagnetic vibration absorber according to claim 1, characterized in that: The magnet is arranged on the piston, and the flow channel is formed in the magnet.

8. The electromagnetic vibration absorber according to claim 7, characterized in that: A coating layer covering the magnet is arranged outside the magnet.

9. The electromagnetic vibration absorber according to claim 1, characterized in that: The flow channel is arranged inside the piston and penetrates the piston along the length direction of the support rod; Alternatively, the flow channel is formed by an inward depression of the outer surface of the piston and penetrates the piston along the length direction of the support rod.

10. A vehicle, characterized in that: The electromagnetic vibration absorber comprises any one of claims 1 to 9.

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