Shock absorber and suspension system for vehicle, and vehicle

Abstract

A shock absorber (1) and a suspension system for a vehicle, and a vehicle. The shock absorber (1) for a vehicle comprises: a magnetic induction apparatus (30), the magnetic induction apparatus (30) having a first induction surface (321); and an inductive scale (40), the inductive scale (40) having a second induction surface (42), at least one of the first induction surface (321) and the second induction surface (42) being formed as an arc surface.

Description

Shock absorbers and suspension systems for vehicles, vehicles

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202311870186.1 and application date December 29, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the technical field of shock absorbers, and in particular to a shock absorber for a vehicle and a vehicle having the shock absorber. Background Art

[0004] The vibration absorber in the related art is equipped with a grating sensor and a grating guide rail. The grating guide rail is a plane. The grating sensor emits an optical signal and receives the signal reflected from the grating guide rail, thereby being able to determine the position of the grating sensor relative to the grating guide rail. However, when the grating sensor and the grating guide rail rotate relative to each other, the signal emitted by the grating sensor is not perpendicular to the grating guide rail. Therefore, the grating guide rail cannot receive the signal reflected back from the grating sensor, which leads to signal failure and the grating sensor cannot determine its position relative to the grating guide rail.

[0005] Summary of the Invention

[0006] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a shock absorber for a vehicle. The shock absorber for a vehicle has at least one of a first sensing surface and a second sensing surface formed as an arc surface, so that the first sensing surface and the second sensing surface can maintain sensing even when the first sensing surface and the second sensing surface rotate relative to each other, thereby improving the stability of the sensing between the first sensing surface and the second sensing surface.

[0007] The present application also provides a suspension system and a vehicle having the shock absorber.

[0008] According to an embodiment of the first aspect of the present application, a shock absorber for a vehicle includes: a magnetic induction device having a first induction surface; and an induction ruler having a second induction surface, wherein at least one of the first induction surface and the second induction surface is formed as an arc surface.

[0009] According to the embodiment of the present application, the shock absorber for a vehicle is configured such that at least one of the first sensing surface and the second sensing surface is an arc surface, so that the sensing can be maintained even when the first sensing surface and the second sensing surface rotate relative to each other, thereby improving the stability of the sensing between the first sensing surface and the second sensing surface.

[0010] In addition, the shock absorber for a vehicle according to the above embodiment of the present application may also have the following additional technical features:

[0011] According to some embodiments of the present application, in a first direction, the magnetic field strengths at different positions of the inductive scale are different, wherein the first sensing surface corresponds to the second sensing surface to sense the magnetic fields at different positions of the inductive scale.

[0012] According to some optional embodiments of the present application, the central axis of the arc surface extends along the first direction.

[0013] According to some embodiments of the present application, the first sensing surface and the second sensing surface are both formed as arc surfaces, and the first sensing surface and the second sensing surface are arranged in parallel.

[0014] According to some embodiments of the present application, the shock absorber includes a first mating piece, the first mating piece includes a first magnetic piece; a second mating piece, the second mating piece includes a second magnetic piece, the first magnetic piece and the second magnetic piece are arranged opposite to each other and magnetically matched so that the first mating piece and the second mating piece move toward or away from each other along the first direction, the magnetic induction device is fixed to one of the first mating piece and the second mating piece, and the induction scale is fixed to the other of the first mating piece and the second mating piece.

[0015] According to some optional embodiments of the present application, the first magnetic member is a winding coil, and the second magnetic member is a permanent magnet.

[0016] According to some optional embodiments of the present application, the inductive ruler and the second magnetic component are spaced apart from each other on the second matching component along the first direction.

[0017] In some embodiments, the magnetic induction device includes a mounting portion and an induction head, the mounting portion is mounted to the first mating member, the induction head has the second induction surface, and the induction head is disposed at an end of the mounting portion away from the first magnetic member.

[0018] In some examples, the mounting portion includes: a connecting end fixed to an end of the first mating piece; a connecting rod extending along the first direction, one end of the connecting rod being connected to the connecting end, and the other end being connected to the sensing head.

[0019] According to some optional embodiments of the present application, the second fitting part further includes a shell portion, which defines an active cavity, the second magnetic part is fixed to the inner wall of the active cavity, the first magnetic part can be movably arranged in the active cavity, and the inner bottom wall of the active cavity is provided with a buffer portion.

[0020] In some embodiments, the first fitting part further includes a connecting shaft, the first magnetic part is sleeved on the connecting shaft, the connecting shaft has a sliding portion, the shell portion has a sliding fitting portion, and the sliding fitting portion cooperates with the sliding portion to guide the moving direction of the shell portion.

[0021] In some examples, one of the sliding portion and the sliding fitting portion is formed as a sliding groove, and the other is formed as a sliding rail.

[0022] In some examples, the connecting shaft includes a surrounding plate and a support plate, the support plate is located at one end of the surrounding plate, the first magnetic member is externally mounted on the surrounding plate, and an end portion of the first magnetic member abuts against the support plate.

[0023] Furthermore, the magnetic induction device is fixed to a side of the support plate away from the enclosure plate.

[0024] According to some embodiments of the present application, the magnetic induction device is a Hall sensor.

[0025] According to an embodiment of a second aspect of the present application, a suspension system is provided, wherein the suspension system includes the shock absorber according to the embodiment of the first aspect of the present application.

[0026] According to the suspension system of the embodiment of the present application, by utilizing the shock absorber described in the embodiment of the first aspect of the present application, at least one of the first sensing surface and the second sensing surface is made into an arc surface, so that the sensing can be maintained even when the first sensing surface and the second sensing surface rotate relative to each other, thereby facilitating improving the stability of the sensing of the first sensing surface and the second sensing surface.

[0027] According to some embodiments of the present application, the suspension system further includes a lower fork arm and an axle, wherein the lower fork arm is connected to the shock absorber and the axle respectively; the lower fork arm defines an avoidance cavity for avoiding the magnetic induction device or the induction ruler.

[0028] According to an embodiment of a third aspect of the present application, a vehicle is provided, comprising the suspension system according to the embodiment of the second aspect of the present application.

[0029] According to the vehicle of the embodiment of the present application, by utilizing the suspension system described in the embodiment of the second aspect of the present application, by making at least one of the first sensing surface and the second sensing surface an arc surface, the sensing can be maintained even when the first sensing surface and the second sensing surface rotate relative to each other, thereby facilitating improving the stability of the sensing of the first sensing surface and the second sensing surface.

[0030] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0032] FIG1 is a schematic structural diagram of a suspension system according to an embodiment of the present application.

[0033] FIG2 is a cross-sectional view of a suspension system according to an embodiment of the present application.

[0034] FIG3 is an enlarged view of point A in FIG2 .

[0035] FIG4 is a cross-sectional view of a suspension system according to an embodiment of the present application.

[0036] FIG5 is an enlarged view of point B in FIG4.

[0037] FIG6 is a cross-sectional view of a suspension system according to an embodiment of the present application.

[0038] FIG7 is an enlarged view of point C in FIG6 .

[0039] FIG8 is a top view of a partial structure of a suspension system according to an embodiment of the present application.

[0040] FIG9 is an enlarged view of point D in FIG8 .

[0041] FIG10 is a schematic structural diagram of a magnetic induction device according to an embodiment of the present application.

[0042] Reference numerals: shock absorber 1,

[0043] First matching member 10, connecting shaft 11, enclosure 111, support plate 112, slide groove 113, first magnetic member 12,

[0044] The second matching member 20, the housing portion 21, the active cavity 211, the second magnetic member 22,

[0045] Magnetic induction device 30, mounting portion 31, connecting end 311, fixing hole 3111, connecting rod 312, induction head 32, first induction surface 321,

[0046] Sensing ruler 40, second sensing surface 42,

[0047] Buffer portion 50, avoidance hole 51,

[0048] Suspension system 6 , lower wishbone 60 , avoidance cavity 61 . DETAILED DESCRIPTION

[0049] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0050] A shock absorber 1 for a vehicle according to an embodiment of the present application will be described below with reference to the accompanying drawings.

[0051] As shown in FIG. 1 to FIG. 10 , a shock absorber 1 for a vehicle according to an embodiment of the present application includes a magnetic induction device 30 and an induction scale 40 .

[0052] The magnetic induction device 30 has a first sensing surface 321, and the sensing scale 40 has a second sensing surface 42. At least one of the first sensing surface 321 and the second sensing surface 42 is formed as an arc surface to prevent induction failure between the first sensing surface 321 and the second sensing surface 42 when the first sensing surface 321 and the second sensing surface 42 rotate relative to each other. This ensures that the first sensing surface 321 can stably sense the magnetic field strength at different positions on the sensing scale 40.

[0053] Specifically, when the vehicle turns or rolls, the second sensing surface 42 on the sensing scale 40 rotates relative to the first sensing surface 321 of the magnetic sensing device 30, so that at least one of the first sensing surface 321 and the second sensing surface 42 is an arc surface. This allows the first sensing surface 321 to accurately sense the magnetic field intensity at different locations on the sensing scale 40 during the relative rotation of the first sensing surface 321 and the second sensing surface 42, thereby preventing misalignment between the first sensing surface 321 and the second sensing surface 42 and preventing induction failure between the first sensing surface 321 and the second sensing surface 42.

[0054] Therefore, the shock absorber 1 for a vehicle according to an embodiment of the present application makes at least one of the first sensing surface 321 and the second sensing surface 42 an arc surface so that the sensing can be maintained even when the first sensing surface 321 and the second sensing surface 42 rotate relative to each other, thereby improving the stability of the sensing of the first sensing surface 321 and the second sensing surface 42.

[0055] A shock absorber 1 for a vehicle according to a specific embodiment of the present application will be described below with reference to the accompanying drawings.

[0056] As shown in FIG. 1 to FIG. 10 , a shock absorber 1 for a vehicle according to an embodiment of the present application includes a magnetic induction device 30 and an induction scale 40 .

[0057] In some embodiments of the present application, the magnetic field strength at different locations on the inductive scale 40 varies in the first direction, and the first sensing surface 321 corresponds to the second sensing surface 42 to sense the magnetic field at different locations on the inductive scale 40. In other words, by using the magnetic sensing device 30 to sense the magnetic field strength at different locations on the inductive scale 40, the position of the first sensing surface 321 relative to the inductive scale 40 can be determined.

[0058] Specifically, when the shock absorber 1 is used on a vehicle and the vehicle vibrates, the magnetic sensing device 30 and the sensing scale 40 will move relative to each other in a first direction. At this time, the sensing scale 40 moves relative to the magnetic sensing device 30, and the position of the sensing scale 40 sensed by the magnetic sensing device 30 changes. By determining the strength of the magnetic field sensed by the magnetic sensing device 30, the distance over which the magnetic sensing device 30 and the sensing scale 40 have moved relative to each other in the first direction can be determined, and thus the amplitude of the vehicle vibration can be determined. The vehicle vibration can then be reported to the shock absorber 1, allowing the shock absorber 1 to adaptively and fully cushion the vehicle vibration, thereby facilitating improved comfort for the vehicle's occupants.

[0059] Furthermore, when there are contaminants such as oil and dust on the sensing scale 40, since the magnetic sensing device 30 senses the magnetic field strength of the sensing scale 40, the contaminants such as oil and dust will not affect the magnetic field strength of the sensing scale 40. This allows the magnetic sensing device 30 to accurately and smoothly sense the magnetic field strength of the sensing scale 40, thereby facilitating accurate analysis of the relative movement distance between the magnetic sensing device 30 and the sensing scale 40.

[0060] In some embodiments of the present application, the central axis of the arc surface extends along the first direction, so that when the magnetic sensing device 30 and the sensing scale 40 move relative to each other along the first direction, the first sensing surface 321 can always accurately sense the magnetic field intensity at different positions on the sensing scale 40, thereby avoiding induction failure between the first sensing surface 321 and the second sensing surface 42 when the first sensing surface 321 and the second sensing surface 42 move relative to each other along the first direction.

[0061] In some embodiments of the present application, the inductive scale 40 is made of different magnetic materials, made of magnetic materials with different specifications and sizes, or magnetized in different magnetizing directions so that the magnetic field strength at different positions of the inductive scale 40 is different.

[0062] In some embodiments of the present application, the first sensing surface 321 and the second sensing surface 42 are both formed as arc surfaces. The first sensing surface 321 and the second sensing surface 42 are arranged in parallel. When the first sensing surface 321 rotates relative to the second sensing surface 42, the shortest distance between the first sensing surface 321 and the second sensing surface 42 does not change. This facilitates reducing errors generated when the first sensing surface 321 senses the magnetic field intensity on the second sensing surface 42. This allows the first sensing surface 321 to accurately sense the magnetic field intensity on the second sensing surface 42, thereby accurately determining the relative position of the first sensing surface 321 and the sensing scale 40, and accurately determining the relative movement distance of the first sensing surface 321 and the sensing scale 40 along the first direction when the vehicle vibrates.

[0063] In some embodiments, the centers of the first sensing surface 321 and the second sensing surface 42 coincide with each other. When relative rotation occurs between the first sensing surface 321 and the second sensing surface 42, the second sensing surface 42 rotates around the center relative to the first sensing surface 321 to avoid mutual interference between the first sensing surface 321 and the second sensing surface 42, while ensuring that the shortest distance between the first sensing surface 321 and the second sensing surface 42 remains unchanged.

[0064] In some embodiments, as shown in Figures 2 and 3, the first direction extends in the vertical direction, the sensing scale 40 extends in the vertical direction, and the magnetic field strength at different heights on the sensing scale 40 in the vertical direction is different. When the sensing scale 40 moves in the vertical direction relative to the first sensing surface 321, when the first sensing surface 321 moves in the vertical direction to positions at different heights on the sensing scale 40, the first sensing surface 321 can sense different magnetic field strengths.

[0065] By analyzing the magnetic field strength sensed by the magnetic sensing device 30 at the two positions, the distance the sensing scale 40 has moved relative to the magnetic sensing device 30 can be determined. This can then determine the distance the sensing scale 40 has moved in the vertical direction relative to the first sensing surface 321 and the amplitude of the vehicle's vertical vibration.

[0066] In some examples, the magnetic field strength at the same height on the sensing scale 40 is the same. Therefore, when the first sensing surface 321 rotates relative to the sensing scale 40, the magnetic field strength sensed by the first sensing surface 321 does not change. This avoids the inability to determine the distance moved by the first sensing surface 321 relative to the second sensing surface 42 by analyzing the magnetic field strength sensed by the magnetic sensing device 30 when the first sensing surface 321 rotates relative to the sensing scale 40.

[0067] In some embodiments of the present application, as shown in Figure 2, the shock absorber 1 includes a first matching member 10 and a second matching member 20, the first matching member 10 includes a first magnetic member 12, the second matching member 20 includes a second magnetic member 22, the first magnetic member 12 and the second magnetic member 22 are arranged opposite to each other, and the first magnetic member 12 and the second magnetic member 22 are magnetically matched to enable the first matching member 10 and the second matching member 20 to move toward or away from each other along a first direction, the magnetic induction device 30 is fixed to one of the first matching member 10 and the second matching member 20, and the induction scale 40 is fixed to the other of the first matching member 10 and the second matching member 20.

[0068] When the vehicle vibrates, the first mating member 10 and the second mating member 20 move toward or away from each other in the first direction. Driven by the first mating member 10 and the second mating member 20, the magnetic sensing device 30 and the sensing scale 40 move toward or away from each other in the first direction. At this time, the first sensing surface 321 on the magnetic sensing device 30 moves relative to the sensing scale 40 in the first direction, and the magnetic field strength sensed by the magnetic sensing device 30 changes. This allows the relative movement distance between the magnetic sensing device 30 and the sensing scale 40 to be determined, thereby determining the amplitude of the vehicle vibration.

[0069] Under the action of the first magnetic member 12 and the second magnetic member 22, a damping force is generated between the first fitting member 10 and the second fitting member 20, thereby driving the first fitting member 10 and the second fitting member 20 to move toward or away from each other in a direction opposite to the vibration of the vehicle, thereby cushioning the vibration of the vehicle. At the same time, as the first fitting member 10 and the second fitting member 20 move toward or away from each other in a direction opposite to the vibration of the vehicle, the first fitting member 10 and the second fitting member 20 drive the magnetic induction device 30 and the induction scale 40 to move in the first direction. At this time, the magnetic field strength on the induction scale 40 sensed by the magnetic induction device 30 changes, thereby enabling timely feedback on the vibration reduction condition of the shock absorber 1.

[0070] In some embodiments, a vehicle includes a body and an axle. When the vibration damper 1 is applied to the vehicle, the first mating component 10 is connected to the body, and the second mating component 20 is connected to the axle. When the vehicle is traveling on a road, the wheels will vibrate in a first direction due to uneven road conditions. At this time, the wheels drive the second mating component 20 to move relative to the first mating component 10 in the first direction via the axle. At this time, the sensing scale 40 moves in the first direction relative to the magnetic sensing device 30. By determining the magnetic field strength at different positions on the sensing scale 40 measured by the magnetic sensing device 30, the position of the first sensing surface 321 relative to the sensing scale 40 can be determined, and thus the distance the second mating component 20 has moved relative to the first mating component 10 in the first direction can be determined.

[0071] For example, when the first mating component 10 and the second mating component 20 move toward or away from each other along a first direction, the magnetic induction device 30 moves from a first position to a second position relative to the induction scale 40. By recording the magnetic field strength sensed by the magnetic induction device 30 at the first position and the magnetic induction strength sensed by the magnetic induction device 30 at the second position, and analyzing the magnetic field strengths sensed by the magnetic induction device 30 at the two positions, the distance moved by the magnetic induction device 30 relative to the induction scale 40 can be determined.

[0072] By determining the distance moved by the magnetic induction device 30 relative to the sensing scale 40, the distance moved by the second matching member 20 relative to the first matching member 10 can be determined, and then the amplitude of the axle vibration can be analyzed. The degree of coordination between the first magnetic member 12 and the second magnetic member 22 can be determined according to the vibration of the axle, and the magnitude of the force output by the shock absorber 1 can be determined. The vibration of the vehicle is then reflected to the shock absorber 1, so that the shock absorber 1 can adaptively and fully cushion the vibration of the axle, and then fully cushion the vibration of the wheel, so as to fully reduce the vibration transmitted from the wheel to the vehicle body, thereby facilitating the improvement of the comfort of the driver and passengers in the vehicle.

[0073] Among them, when the vibration amplitude to which the wheel is subjected is large, the wheel drives the second fitting part 20 to move a larger distance relative to the first fitting part 10 through the axle; when the vibration amplitude to which the wheel is subjected is small, the wheel drives the second fitting part 20 to move a smaller distance relative to the first fitting part 10 through the axle. According to the distance that the second fitting part 20 moves relative to the first fitting part 10 along the first direction, the magnitude of the magnetic force between the first magnetic part 12 and the second magnetic part 22 is determined, that is, the damping force between the first fitting part 10 and the second fitting part 20 is determined, so that the second fitting part 20 can move in a direction opposite to the vibration direction of the axle, so as to hinder the vibration of the axle and enable the tire of the vehicle to fit the ground as much as possible, thereby slowing down the vibration of the wheel and reducing the vibration transmitted from the wheel to the vehicle body, so as to improve the comfort of the driver and passengers.

[0074] In some optional embodiments of the present application, the first magnetic member 12 is a winding coil, and the second magnetic member 22 is a permanent magnet. This arrangement reduces the difficulty of winding and facilitates the power supply to the winding coil.

[0075] Specifically, since the second fitting part 20 is connected to the axle and the first fitting part 10 is connected to the vehicle body, when the vehicle encounters an uneven road surface, the vibration of the wheel will be transmitted to the second fitting part 20 through the axle, so that the first magnetic part 12 is a winding coil and the second magnetic part 22 is a permanent magnet. When the wheel vibrates, the wheel will drive the permanent magnet on the second fitting part 20 to vibrate instead of directly driving the winding coil on the first fitting part 10 to vibrate. In this way, when powering the winding coil, it is convenient to reduce the length of the power supply line, and at the same time, it can avoid pulling the power supply line and preventing the power supply line from being worn, so as to ensure that the power supply line can stably supply power to the winding coil, thereby improving the working stability of the shock absorber 1.

[0076] In some optional embodiments of the present application, as shown in Figures 2 and 3, the sensing scale 40 and the second magnetic member 22 are spaced apart from each other along the first direction on the second matching member 20, so that the second magnetic member 22 and the sensing scale 40 maintain a certain distance along the first direction. This can prevent the magnetic field on the second magnetic member 22 from affecting the magnetic field on the sensing scale 40, so that the first sensing surface 321 can accurately sense the magnetic field strength at different positions on the sensing scale 40, and avoid deviations in the magnetic field strength sensed by the first sensing surface 321 due to the influence of the second magnetic member 22, which would affect the determination of the movement distance of the second matching member 20 relative to the first matching member 10.

[0077] In some embodiments, the first direction extends in the vertical direction, and the second magnetic member 22 and the inductive scale 40 are spaced apart in the vertical direction to prevent the magnetic fields on the second magnetic member 22 and the inductive scale 40 from affecting each other.

[0078] In some specific embodiments of the present application, the magnetic induction device 30 includes a mounting portion 31 and a sensing head 32. The mounting portion 31 is mounted to the first mating component 10. The sensing head 32 has a second sensing surface 42. The sensing head 32 is disposed at an end of the mounting portion 31 away from the first magnetic component 12. When the sensing head 32 senses the magnetic field strength at a corresponding position on the sensing scale 40, the area on the sensing scale 40 sensed by the sensing head 32 is positioned away from the first magnetic component 12, thereby preventing mutual influence between the magnetic fields of the first magnetic component 12 and the sensed area on the sensing scale 40. This enables the first sensing surface 321 to accurately sense the magnetic field strength at different positions on the sensing scale 40, thereby preventing deviations in the magnetic field strength sensed by the first sensing surface 321 due to the influence of the first magnetic component 12, which could affect the determination of the movement distance of the second mating component 20 relative to the first mating component 10.

[0079] In some embodiments, as shown in Figures 2, 3, and 10, the first direction extends in the up-down direction, the mounting portion 31 is provided at the lower end of the first mating member 10, and the sensing head 32 is located at the lower end of the first magnetic member 12. The first sensing surface 321 on the sensing head 32 can sense the magnetic field strength on the sensing scale 40 corresponding to its level, so that the sensing head 32 and the first magnetic member 12 are spaced apart in the up-down direction, so that the sensed areas on the first magnetic member 12 and the sensing scale 40 are spaced apart in the up-down direction, thereby avoiding mutual influence between the first magnetic member 12 and the sensing scale 40.

[0080] As shown in Figures 2 and 4, when the second mating member 20 moves upward relative to the first mating member 10, the second magnetic member 22 and the sensing scale 40 on the second mating member 20 move upward relative to the first mating member 10. At this time, the sensing scale 40 moves toward the first magnetic member 12. At this time, the sensing head 32 on the magnetic sensing device 30 can sense the magnetic field strength in the area below the sensing scale 40. Since there is a certain distance between the sensing head 32 and the first magnetic member 12, there is also a certain distance between the area of ​​the sensing scale 40 sensed by the magnetic sensing device 30 and the first magnetic member 12. This prevents the first magnetic member 12 from affecting the magnetic field strength in the area below the sensing scale 40.

[0081] As shown in Figures 2 and 6, when the second mating member 20 moves downward relative to the first mating member 10, the second magnetic member 22 and the sensing scale 40 on the second mating member 20 move downward relative to the first mating member 10. At this time, the sensing scale 40 moves in a direction away from the first magnetic member 12. The sensing head 32 on the magnetic sensing device 30 can sense the magnetic field strength in the area above the sensing scale 40. At this time, the distance between the sensing scale 40 and the first magnetic member 12 is relatively large, thereby preventing the first magnetic member 12 from affecting the magnetic field strength in the area above the sensing scale 40.

[0082] In some examples, the coercive force of the first magnetic component 12 is smaller than the coercive force of the sensing scale 40 to prevent the first magnetic component 12 from magnetizing the sensing scale 40 when the sensing scale 40 is too close to the first magnetic component 12, for example, when the lower area of ​​the sensing scale 40 is opposite to the upper area of ​​the first magnetic component 12. This prevents the first magnetic component 12 from changing the magnetic field strength of the sensing scale 40, affecting the sensing head 32's judgment of the magnetic field strength on the sensing scale 40, and affecting the judgment of the movement distance of the second matching component 20 relative to the first matching component 10.

[0083] In some specific embodiments, the first magnetic member 12 is a wound coil, and the coercive force of the first magnetic member 12 is determined by the magnitude of the current and the winding method. The inductive scale 40 is a permanent magnet, so that the coercive force of the first magnetic member 12 is smaller than the coercive force of the inductive scale 40 to prevent the first magnetic member 12 from magnetizing the inductive scale 40 and preventing the first magnetic member 12 from changing the magnetic field strength of the inductive scale 40.

[0084] In addition, since the first magnetic member 12 is a wound coil, the inductive scale 40 will not magnetize the first magnetic member 12. Although the coercive force of the first magnetic member 12 is smaller than that of the inductive scale 40, there is no need to worry that the inductive scale 40 will change the magnetic field strength of the first magnetic member 12, and will not affect the force between the first magnetic member 12 and the second magnetic member 22, nor will it affect the vibration reduction effect of the vibration absorber 1.

[0085] In some specific embodiments of the present application, as shown in Figure 10, the mounting portion 31 includes a connecting end 311 and a connecting rod 312. The connecting end 311 is fixed to the end of the first mating member 10, and the connecting rod 312 extends along the first direction. One end of the connecting rod 312 is connected to the connecting end 311, and the other end is connected to the sensing head 32, so that the sensing head 32 is set on the end of the mounting portion 31 away from the first magnetic member 12, so that the first magnetic member 12 and the sensing head 32 remain relatively stationary, and a certain distance is maintained between the sensing head 32 and the first magnetic member 12, so as to prevent the first magnetic member 12 from affecting the magnetic field strength of the area on the sensing scale 40 sensed by the sensing head 32.

[0086] In some embodiments, as shown in FIG10 , the connection end 311 has a plurality of fixing holes 3111 . Fasteners can pass through the fixing holes 3111 and engage with the end of the first mating component 10 to secure the connection end 311 to the end of the first mating component 10 . This, in turn, secures the magnetic sensing device 30 to the end of the first mating component 10 . This allows the sensing scale 40 to move relative to the sensing head 32 in the first direction when the second mating component 20 moves relative to the first mating component 10 . This allows the sensing head 32 to sense the magnetic field strength at different positions on the sensing scale 40 . By analyzing the different magnetic field strengths sensed by the sensing head 32 , the distance the second mating component 20 has moved relative to the first mating component 10 in the first direction can be determined.

[0087] In some optional embodiments of the present application, as shown in Figure 2, the second fitting part 20 also includes a shell portion 21, the shell portion 21 defines an active cavity 211, the second magnetic part 22 is fixed to the inner wall of the active cavity 211, and the first magnetic part 12 is movably arranged in the active cavity 211. The active cavity 211 can be used to limit the direction of movement of the second magnetic part 22 relative to the first magnetic part 12, and then the direction of movement of the second fitting part 20 relative to the first fitting part 10 can be limited, so as to utilize the relative movement of the first fitting part 10 and the second fitting part 20 to buffer the vibration of the vehicle, and then buffer the vibration of the wheel, so as to reduce the vibration transmitted from the wheel to the vehicle body, thereby facilitating the improvement of the comfort of the driver and passengers in the vehicle.

[0088] Among them, the inner bottom wall of the active cavity 211 is provided with a buffer portion 50. When the first magnetic component 12 moves in the active cavity 211 and moves to the bottom of the active cavity 211, the buffer portion 50 can buffer the impact force exerted on the first magnetic component 12, thereby preventing the first magnetic component 12 from directly hitting the bottom of the active cavity 211 when the first magnetic component 12 moves in the active cavity 211, thereby preventing the first magnetic component 12 from colliding with the shell portion 21.

[0089] In some specific embodiments of the present application, as shown in Figure 2, the first fitting member 10 also includes a connecting shaft 11, the first magnetic member 12 is sleeved on the connecting shaft 11, the connecting shaft 11 has a sliding portion, and the shell portion 21 has a sliding fitting portion. The sliding fitting portion cooperates with the sliding portion to guide the moving direction of the shell portion 21 so that the shell portion 21 can slide smoothly along the first direction relative to the connecting shaft 11.

[0090] Specifically, when the housing portion 21 slides relative to the connecting shaft 11 in the first direction, the second fitting member 20 can drive the sensing scale 40 to slide relative to the magnetic sensing device 30 in the first direction. Then, when the second fitting member 20 moves relative to the second fitting member 20 in the first direction due to the force of the vehicle axle, the magnetic sensing device 30 can sense the magnetic field strength on the sensing scale 40 at the corresponding position. By analyzing the magnetic field strength sensed by the magnetic sensing device 30, the vibration amplitude of the second fitting member 20 relative to the first fitting member 10 and the amplitude of the axle vibration can be determined. Based on the amplitude of the axle vibration, the magnetic force between the first fitting member 10 and the second fitting member 20 is determined, so that the second fitting member 20 can move in the direction opposite to the axle vibration, thereby buffering the vibration of the vehicle, thereby facilitating the reduction of the vibration transmitted to the vehicle body and improving the comfort of the driver and passengers.

[0091] In some embodiments, one of the sliding portion and the sliding fitting portion is formed as a slide groove 113, and the other is formed as a slide rail, and the slide rail slides with the slide groove 113 to limit the sliding direction of the shell portion 21 relative to the connecting shaft 11, thereby limiting the sliding direction of the second fitting portion 20 relative to the first fitting portion 10.

[0092] In some examples, as shown in Figure 2, the shell portion 21 has a slide rail (not shown in the figure), which extends along the first direction. A slide groove 113 is provided in the connecting shaft 11, and the slide groove 113 extends along the first direction. The slide rail extends into the slide groove 113. When the second mating component 20 is subjected to the force of the axle and the second mating component 20 moves relative to the first mating component 10, the slide rail moves along the first direction relative to the slide groove 113 to limit the moving direction of the second mating component 20.

[0093] In some embodiments, as shown in Figure 3, the connecting shaft 11 includes a surrounding plate 111 and a support plate 112, the support plate 112 is located at one end of the surrounding plate 111, the first magnetic component 12 is externally mounted on the surrounding plate 111, and the end of the first magnetic component 12 stops at the support plate 112, so as to use the support plate 112 and the surrounding plate 111 to limit the position of the first magnetic component 12 to prevent the first magnetic component 12 from falling off the first mating component 10.

[0094] In some examples, as shown in Figures 2 and 3, the enclosure 111 extends in the up and down directions. In the projection in the up and down directions, the enclosure 111 is formed into a circular ring. The support plate 112 is arranged below the enclosure 111. The support plate 112 extends in the horizontal direction. The first magnetic part 12 is externally mounted on the enclosure 111. The lower end of the first magnetic part 12 is abutted against the support plate 112 to utilize the support plate 112 and the enclosure 111 to limit the position of the first magnetic part 12 in the up and down directions to prevent the first magnetic part 12 from falling off the first mating part 10. It should be understood here that the above-mentioned direction limitation is only for the convenience of describing the accompanying drawings and will not limit the actual setting position and direction of the shock absorber 1 for the vehicle.

[0095] In some specific embodiments, as shown in Figure 3, the magnetic induction device 30 is fixed to the side of the support plate 112 away from the enclosure 111, so that the magnetic induction device 30 is set as far away from the first magnetic part 12 as possible, and the first sensing surface 321 is set away from the first magnetic part 12, so as to avoid the first magnetic part 12 affecting the magnetic field of the area on the second sensing surface 42 sensed by the first sensing surface 321, and avoid affecting the first sensing surface 321's induction of the magnetic field strength on the second sensing surface 42, so as to facilitate subsequent analysis of the different magnetic field intensities sensed by the first sensing surface 321, determine the distance moved by the first sensing surface 321 relative to the second sensing surface 42, and then determine the distance moved by the second matching part 20 relative to the first matching part 10.

[0096] In some embodiments of the present application, the magnetic induction device 30 is a Hall sensor, which is a magnetic field sensor made based on the Hall effect. When the second fitting part 20 moves relative to the first fitting part 10, the Hall sensor can sense the magnetic field strength at the corresponding area on the sensing scale 40.

[0097] The following describes a suspension system 6 according to an embodiment of the present application. The suspension system 6 according to an embodiment of the present application includes the shock absorber 1 according to the above-mentioned embodiment of the present application.

[0098] According to the suspension system 6 of the embodiment of the present application, by utilizing the shock absorber 1 according to the above-mentioned embodiment of the present application, by making at least one of the first sensing surface 321 and the second sensing surface 42 an arc surface, the sensing can be maintained even when the first sensing surface 321 and the second sensing surface 42 rotate relative to each other, thereby improving the stability of the sensing of the first sensing surface 321 and the second sensing surface 42.

[0099] In some embodiments of the present application, as shown in Figures 1 to 3, the suspension system 6 further includes a lower fork arm 60 and an axle. The lower fork arm 60 is connected to the shock absorber 1 and the axle, respectively. The lower fork arm 60 defines an avoidance cavity 61, which is used to avoid the magnetic induction device 30 or the induction scale 40. When the magnetic induction device 30 and the induction scale 40 move relative to each other along the first direction, the lower fork arm 60 can reserve space for the movement of the magnetic induction device 30 or the induction scale 40, thereby facilitating the reduction of the space reserved by the shock absorber 1 for the magnetic induction device 30 or the induction scale 40, and facilitating the miniaturization design of the shock absorber 1.

[0100] In some embodiments, the shock absorber 1 includes a first fitting 10 and a second fitting 20 , the magnetic induction device 30 is fixed to one of the first fitting 10 and the second fitting 20 , and the induction scale 40 is fixed to the other of the first fitting 10 and the second fitting 20 .

[0101] In Example 1, as shown in Figures 2 and 3, the second matching component 20 defines a movable cavity 211, the first matching component 10 is disposed in the movable cavity 211, the magnetic induction device 30 is disposed in the first matching component 10, and the induction scale 40 is disposed in the second matching component 20. At least a portion of the induction scale 40 is located in the avoidance cavity 61. When the second matching component 20 is subjected to the force of the axle and moves in the up and down directions, the first matching component 10 moves in the movable cavity 211. At this time, the magnetic induction device 30 also moves in the movable cavity 211.

[0102] Specifically, the magnetic induction device 30 is arranged below the first matching part 10, and the avoidance chamber 61 is located below the active chamber 211. By setting the avoidance chamber 61 on the lower fork arm 60, when the first matching part 10 moves in the active chamber 211 in the up and down directions, the magnetic induction device 30 can move in the active chamber 211 and the avoidance chamber 61 in the up and down directions. This arrangement facilitates reducing the space occupied by the magnetic induction device 30 in the active chamber 211, thereby facilitating the miniaturization design of the active chamber 211 and facilitating the miniaturization design of the shock absorber 1.

[0103] In some examples, as shown in FIG7 , a buffer portion 50 is provided at the bottom of the active cavity 211 , and an avoidance hole 51 is provided on the buffer portion 50 , and the avoidance hole 51 is located above the avoidance cavity 61 . When the first mating piece 10 moves to the lower part of the active cavity 211 , the buffer portion 50 can buffer the collision between the first mating piece 10 and the second mating piece 20 . At this time, the magnetic induction device 30 can enter the avoidance cavity 61 from the avoidance hole 51 .

[0104] In Example 2, the second mating component 20 defines a movable cavity 211, the first mating component 10 is disposed in the movable cavity 211, the sensing ruler 40 is disposed in the first mating component 10, and the magnetic induction device 30 is disposed in the second mating component 20. When the second mating component 20 is subjected to the force of the axle and moves in the up and down directions, the first mating component 10 moves in the movable cavity 211, and at this time, the sensing ruler 40 moves in the movable cavity 211.

[0105] Specifically, the sensing scale 40 is disposed below the first mating member 10, and the avoidance chamber 61 is located below the active chamber 211. By providing the avoidance chamber 61 on the lower fork arm 60, when the first mating member 10 moves vertically within the active chamber 211, the sensing scale 40 can move vertically within the active chamber 211 and the avoidance chamber 61. This arrangement facilitates reducing the space occupied by the sensing scale 40 within the active chamber 211, thereby facilitating a miniaturized design of the active chamber 211 and, consequently, a miniaturized design of the shock absorber 1.

[0106] In Example 3, the first mating component 10 is arranged outside the second mating component 20. For example, the first mating component 10 is sleeved on the outside of the second mating component 20. The magnetic induction device 30 is arranged at the lower end of the first mating component 10, and the sensing scale 40 is arranged at the lower end of the second mating component 20. At least a portion of the sensing scale 40 is located in the avoidance cavity 61. When the second mating component 20 is subjected to the force of the axle and moves in the up and down directions, the first mating component 10 moves in the up and down directions relative to the second mating component 20 and the lower fork arm 60. The avoidance cavity 61 can avoid the movement of the magnetic induction device 30, so that when installing the suspension system 6, there is no need to reserve additional space for the movement of the magnetic induction device 30.

[0107] In Example 4, the first mating component 10 is disposed outside the second mating component 20. For example, the first mating component 10 is sleeved on the outside of the second mating component 20. The sensing scale 40 is disposed at the lower end of the first mating component 10, and the magnetic induction device 30 is disposed at the lower end of the second mating component 20. When the second mating component 20 is subjected to the force of the axle and moves in the up-down direction, the first mating component 10 moves in the up-down direction relative to the second mating component 20 and the lower fork arm 60. The avoidance cavity 61 can avoid the movement of the sensing scale 40, so that when the suspension system 6 is installed, there is no need to reserve additional space for the movement of the sensing scale 40.

[0108] A vehicle according to an embodiment of the present application is described below. The vehicle according to the embodiment of the present application includes the shock absorber 1 for a vehicle according to the above embodiment of the present application.

[0109] According to the vehicle of the embodiment of the present application, by utilizing the suspension system 6 according to the above-mentioned embodiment of the present application, by making at least one of the first sensing surface 321 and the second sensing surface 42 an arc surface, the sensing can be maintained even when the first sensing surface 321 and the second sensing surface 42 rotate relative to each other, thereby facilitating improving the stability of the sensing of the first sensing surface 321 and the second sensing surface 42.

[0110] Other structures and operations of the vehicle according to the embodiment of the present application are known to ordinary technicians in this field and will not be described in detail here.

[0111] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more. In the description of the present application, a first feature "above" or "below" a second feature may include direct contact between the first and second features, or may include contact between the first and second features not being in direct contact but through another feature between them.

[0112] In the description of this application, a first feature “on”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0113] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0114] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0115] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A shock absorber for a vehicle, wherein, Comprising: A magnetic induction device having a first induction surface; An induction scale having a second induction surface, wherein at least one of the first induction surface and the second induction surface is formed as an arc surface.

2. The shock absorber for a vehicle according to claim 1, wherein, In the first direction, the magnetic field intensities at different positions of the induction scale are different, wherein the first induction surface faces the second induction surface to sense the magnetic fields at different positions of the induction scale.

3. The shock absorber for a vehicle according to claim 2, wherein, The central axis of the arc surface extends along the first direction.

4. The shock absorber for a vehicle according to any one of claims 1-3, wherein, Both the first induction surface and the second induction surface are formed as arc surfaces, and the first induction surface and the second induction surface are arranged in parallel.

5. The shock absorber for a vehicle according to any one of claims 1-4, wherein, Comprising: A first fitting member including a first magnetic member; A second fitting member including a second magnetic member, the first magnetic member and the second magnetic member are arranged opposite to each other and magnetically cooperate to cause the first fitting member and the second fitting member to move towards or away from each other in the first direction, The magnetic induction device is fixed to one of the first fitting member and the second fitting member, and the induction scale is fixed to the other of the first fitting member and the second fitting member.

6. The shock absorber for a vehicle according to claim 5, wherein, The first magnetic member is a wound coil, and the second magnetic member is a permanent magnet.

7. The shock absorber for a vehicle according to claim 5 or 6, wherein, The induction scale and the second magnetic member are spaced apart in the first direction on the second fitting member.

8. The shock absorber for a vehicle according to claim 7, wherein, The magnetic induction device includes a mounting portion and an induction head, the mounting portion is mounted to the first fitting member, the induction head has the second induction surface, and the induction head is provided at an end of the mounting portion away from the first magnetic member.

9. The shock absorber for a vehicle according to claim 8, wherein, The mounting portion includes: A connection end fixed to an end of the first fitting member; A connecting rod extending in the first direction, one end of the connecting rod is connected to the connection end, and the other end is connected to the induction head.

10. The shock absorber for a vehicle according to any one of claims 5-9, wherein, The second fitting member further includes a housing portion defining a movable cavity, the second magnetic member is fixed to an inner wall of the movable cavity, the first magnetic member is movably disposed in the movable cavity, and a buffer portion is provided on an inner bottom wall of the movable cavity.

11. The shock absorber for a vehicle according to claim 10, wherein, The first fitting member further includes a connecting shaft, the first magnetic member is sleeved on the connecting shaft, the connecting shaft has a sliding portion, and the housing portion has a sliding mating portion, and the sliding mating portion cooperates with the sliding portion to guide the moving direction of the housing portion.

12. The shock absorber for a vehicle according to claim 11, wherein, One of the sliding portion and the sliding mating portion is formed as a sliding groove, and the other is formed as a sliding rail.

13. The shock absorber for a vehicle according to claim 11 or 12, wherein, The connecting shaft includes a surrounding plate and a support plate, the support plate is located at one end of the surrounding plate, the first magnetic member is sleeved outside the surrounding plate, and an end of the first magnetic member abuts against the support plate.

14. The shock absorber for a vehicle according to claim 13, wherein, The magnetic induction device is fixed to a side of the support plate away from the surrounding plate.

15. The shock absorber for a vehicle according to any one of claims 1-14, wherein, The magnetic induction device is a Hall sensor.

16. A suspension system, wherein, Comprising: A shock absorber for a vehicle according to any one of claims 1-15.

17. The suspension system according to claim 16, wherein, Further including a lower control arm and an axle, the lower control arm is respectively connected to the shock absorber and the axle; The lower control arm defines an avoidance cavity for avoiding the magnetic induction device or the induction scale.

18. A vehicle, wherein, Including a suspension device according to claim 16 or 17.

Images