CN117685322A - Shock absorber and suspension system for vehicle, and vehicle - Google Patents

Abstract

The invention discloses a shock absorber and a suspension system for a vehicle, the shock absorber for the vehicle comprises: the magnetic induction device is provided with a first induction surface; the induction ruler is provided with a second induction surface, wherein at least one of the first induction surface and the second induction surface is formed into an arc surface. According to the shock absorber for the vehicle, at least one of the first sensing surface and the second sensing surface is an arc surface, so that sensing can be kept when the first sensing surface and the second sensing surface relatively rotate, and the stability of sensing of the first sensing surface and the second sensing surface can be improved conveniently.

Description

Shock absorber and suspension system for vehicle, and vehicle

Technical Field

The invention relates to the field of vibration dampers, in particular to a vibration damper for a vehicle and a vehicle with the vibration damper for the vehicle.

Background

The vibration damper in the related art is internally provided with the grating sensor and the grating guide rail, the grating guide rail is a plane, the grating sensor sends out optical signals and receives signals reflected from the grating guide rail, so that the position of the grating sensor relative to the grating guide rail can be determined, but when the grating sensor and the grating guide rail relatively rotate, the signals sent out by the grating sensor are not perpendicular to the grating guide rail, so that the grating guide rail cannot receive the signals reflected by the grating sensor, the signals fail, and the grating sensor cannot determine the position of the grating sensor relative to the grating guide rail.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the shock absorber for the vehicle, which can maintain induction when the first induction surface and the second induction surface relatively rotate by enabling at least one of the first induction surface and the second induction surface to be an arc surface, so that the stability of the induction of the first induction surface and the second induction surface is conveniently improved.

The invention also provides a suspension system with the shock absorber and a vehicle.

A shock absorber for a vehicle according to an embodiment of a first aspect of the present invention includes: a magnetic induction device having a first induction face; the induction ruler is provided with a second induction surface, wherein at least one of the first induction surface and the second induction surface is formed into an arc surface.

According to the shock absorber for the vehicle, at least one of the first sensing surface and the second sensing surface is an arc surface, so that sensing can be kept when the first sensing surface and the second sensing surface relatively rotate, and the stability of sensing of the first sensing surface and the second sensing surface can be improved conveniently.

In addition, the shock absorber for a vehicle according to the above-described embodiment of the present invention may have the following additional technical features:

according to some embodiments of the invention, the magnetic field strength at different positions of the induction ruler is different in a first direction, wherein the first induction surface corresponds to the second induction surface to induce the magnetic field at different positions of the induction ruler.

According to some alternative embodiments of the invention, a central axis of the circular arc surface extends along the first direction.

According to some embodiments of the invention, 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 disposed in parallel.

According to some embodiments of the invention, the shock absorber includes a first mating member including a first magnetic member; the second matching piece comprises a second magnetic piece, the first magnetic piece and the second magnetic piece are oppositely arranged and magnetically matched so that the first matching piece and the second matching piece move in opposite directions or back to back along the first direction, the magnetic induction device is fixed on one of the first matching piece and the second matching piece, and the induction ruler is fixed on the other one of the first matching piece and the second matching piece.

According to some alternative embodiments of the invention, the first magnetic member is a wound coil and the second magnetic member is a permanent magnet.

According to some alternative embodiments of the invention, the induction ruler and the second magnetic element are arranged on the second matching element at intervals along the first direction.

In some embodiments, the magnetic induction device comprises 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.

In some examples, the mounting portion includes: the connecting end is fixed at the end part of the first matching piece; the connecting rod extends along the first direction, one end of the connecting rod is connected with the connecting end, and the other end of the connecting rod is connected with the induction head.

According to some alternative embodiments of the invention, the second mating member further includes a housing portion, the housing portion defines 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 disposed on an inner bottom wall of the movable cavity.

In some embodiments, the first matching piece further comprises a connecting shaft, the first magnetic piece is sleeved on the connecting shaft, the connecting shaft is provided with a sliding part, the shell part is provided with a sliding matching part, and the sliding matching part is matched with the sliding part to guide the moving direction of the shell part.

In some examples, one of the sliding portion and the sliding mating portion is formed as a sliding slot, and the other is formed as a sliding rail.

In some examples, the connecting shaft includes a shroud and a support plate, the support plate is located at one end of the shroud, the shroud is sleeved with the first magnetic member, and an end of the first magnetic member abuts against the support plate.

Further, the magnetic induction device is fixed on one side of the supporting plate away from the coaming.

According to some embodiments of the invention, the magnetic induction device is a hall sensor.

An embodiment according to a second aspect of the invention proposes a suspension system comprising a shock absorber according to an embodiment of the first aspect of the invention.

According to the suspension system of the embodiment of the invention, by using the shock absorber according to the embodiment of the first aspect of the invention, at least one of the first sensing surface and the second sensing surface is made to be an arc surface, so that sensing can be kept when the first sensing surface and the second sensing surface relatively rotate, and the stability of sensing of the first sensing surface and the second sensing surface is convenient to improve.

According to some embodiments of the invention, the suspension system further comprises a lower fork and an axle, the lower fork being 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.

According to a third aspect of the invention an embodiment is presented of a vehicle comprising a suspension system according to an embodiment of the second aspect of the invention.

According to the vehicle of the embodiment of the invention, by using the suspension system according to the embodiment of the second aspect of the invention, by making at least one of the first sensing surface and the second sensing surface be an arc surface, the sensing can be maintained even when the first sensing surface and the second sensing surface relatively rotate, so that the stability of the sensing of the first sensing surface and the second sensing surface is facilitated to be improved.

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

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

Fig. 1 is a schematic structural view of a suspension system according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a suspension system according to an embodiment of the present invention.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is a cross-sectional view of a suspension system according to an embodiment of the present invention.

Fig. 5 is an enlarged view at B in fig. 4.

Fig. 6 is a cross-sectional view of a suspension system according to an embodiment of the present invention.

Fig. 7 is an enlarged view at C in fig. 6.

Fig. 8 is a top view of a portion of the structure of a suspension system according to an embodiment of the present invention.

Fig. 9 is an enlarged view at D in fig. 8.

Fig. 10 is a schematic structural diagram of a magnetic induction device according to an embodiment of the present invention.

Reference numerals: the shock absorber 1 is provided with a shock absorber,

the first fitting part 10, the connecting shaft 11, the coaming 111, the support plate 112, the chute 113, the first magnetic part 12,

the second mating member 20, the housing portion 21, the movable cavity 211, the second magnetic member 22,

magnetic induction device 30, mounting portion 31, connection end 311, fixing hole 3111, connection rod 312, induction head 32, first induction surface 321,

the length of the sensing rule 40, the second sensing surface 42,

the buffer portion 50, the escape hole 51,

suspension system 6, lower yoke 60, and relief chamber 61.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

A shock absorber 1 for a vehicle according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 10, a shock absorber 1 for a vehicle according to an embodiment of the present invention includes a magnetic induction device 30 and an induction ruler 40.

The magnetic induction device 30 has a first induction surface 321, the induction ruler 40 has a second induction surface 42, wherein at least one of the first induction surface 321 and the second induction surface 42 is formed into an arc surface, so as to avoid induction failure between the first induction surface 321 and the second induction surface 42 when the first induction surface 321 and the second induction surface 42 rotate relatively, and further facilitate ensuring that the first induction surface 321 can stably induce magnetic field intensity at different positions on the induction ruler 40.

Specifically, when the vehicle turns or rolls, the second sensing surface 42 on the sensing ruler 40 rotates relative to the first sensing surface 321 of the magnetic induction device 30, so that at least one of the first sensing surface 321 and the second sensing surface 42 is an arc surface, and when the first sensing surface 321 and the second sensing surface 42 rotate relatively, the first sensing surface 321 still can accurately sense the magnetic field intensity at different positions on the sensing ruler 40, so that the first sensing surface 321 and the second sensing surface 42 are prevented from being staggered, and the sensing failure between the first sensing surface 321 and the second sensing surface 42 is avoided.

Therefore, the shock absorber 1 for a vehicle according to the embodiment of the invention can maintain the induction even when the first induction surface 321 and the second induction surface 42 are relatively rotated by making at least one of the first induction surface 321 and the second induction surface 42 an arc surface, so that the stability of the induction of the first induction surface 321 and the second induction surface 42 can be improved.

A shock absorber 1 for a vehicle according to a specific embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 10, a shock absorber 1 for a vehicle according to an embodiment of the present invention includes a magnetic induction device 30 and an induction ruler 40.

In some embodiments of the present invention, the magnetic field strength at different locations of the induction ruler 40 is different in the first direction, and the first induction surface 321 corresponds to the second induction surface 42 to induce the magnetic field at different locations of the induction ruler 40. That is, by sensing the magnetic field intensity at different positions of the induction ruler 40 using the magnetic induction device 30, the position of the first induction surface 321 with respect to the induction ruler 40 can be determined.

Specifically, when the shock absorber 1 is applied to a vehicle, the magnetic induction device 30 and the induction ruler 40 relatively move along a first direction when the vehicle vibrates, the induction ruler 40 moves relative to the magnetic induction device 30 at the moment, the position of the induction ruler 40 sensed by the magnetic induction device 30 changes, the distance between the magnetic induction device 30 and the induction ruler 40 relatively moves along the first direction can be determined by determining the magnetic field intensity sensed by the magnetic induction device 30, the vibration amplitude of the vehicle can be determined, the vibration condition of the vehicle is further reflected to the shock absorber 1, the shock absorber 1 can adaptively and fully buffer the vibration of the vehicle, and comfort level of drivers and passengers in the vehicle can be improved conveniently.

In addition, when the induction ruler 40 has the pollutants such as oil stain and dust, the magnetic induction device 30 senses the magnetic field intensity on the induction ruler 40, so that the pollutants such as oil stain and dust can not influence the magnetic field intensity of the induction ruler 40, the magnetic induction device 30 can accurately and smoothly sense the magnetic field intensity on the induction ruler 40, and the relative movement distance between the magnetic induction device 30 and the induction ruler 40 can be accurately analyzed.

In some embodiments of the present invention, the central axis of the arc surface extends along the first direction, so that when the magnetic induction device 30 and the induction ruler 40 relatively move along the first direction, the first induction surface 321 can accurately sense the magnetic field intensity at different positions on the induction ruler 40 all the time, so as to avoid induction failure between the first induction surface 321 and the second induction surface 42 when the first induction surface 321 and the second induction surface 42 relatively move along the first direction.

In some embodiments of the present invention, the induction ruler 40 is made of materials with different magnetic properties, the induction ruler 40 is made of magnetic materials with different specifications and sizes, or the induction ruler 40 is magnetized with different magnetizing directions, so that the magnetic field strengths at different positions of the induction ruler 40 are different.

In some embodiments of the present invention, the first sensing surface 321 and the second sensing surface 42 are formed as arc surfaces, and the first sensing surface 321 and the second sensing surface 42 are disposed in parallel, so that a shortest distance between the first sensing surface 321 and the second sensing surface 42 is not changed when the first sensing surface 321 rotates relative to the second sensing surface 42, and thus an error generated when the first sensing surface 321 senses a magnetic field intensity on the second sensing surface 42 is reduced, so that the first sensing surface 321 can accurately sense the magnetic field intensity on the second sensing surface 42, and a relative position of the first sensing surface 321 and the sensing ruler 40 can be accurately determined, so that a distance of relative movement of the first sensing surface 321 and the sensing ruler 40 along a first direction is accurately determined when a vehicle vibrates.

In some embodiments, the centers of the circles of the first sensing surface 321 and the second sensing surface 42 are coincident, and when the first sensing surface 321 and the second sensing surface 42 rotate relatively to the first sensing surface 321 around the center of the circle, the second sensing surface 42 rotates relatively to the first sensing surface 321 around the center of the circle, so as to avoid the first sensing surface 321 and the second sensing surface 42 from interfering with each other, and meanwhile, the shortest distance between the first sensing surface 321 and the second sensing surface 42 can be ensured to be unchanged.

In some embodiments, as shown in fig. 2 and 3, the first direction extends along the up-down direction, the sensing rule 40 extends along the up-down direction, the magnetic field intensity at different positions along the up-down direction on the sensing rule 40 is different, when the sensing rule 40 moves along the up-down direction relative to the first sensing surface 321, the magnetic field intensity sensed by the first sensing surface 321 is different when the first sensing surface 321 moves along the up-down direction to a position at different positions along the sensing rule 40.

By analyzing the magnetic field intensity sensed by the magnetic induction device 30 at two positions, the distance that the induction ruler 40 moves relative to the magnetic induction device 30 can be determined, and further, the distance that the induction ruler 40 moves relative to the first induction surface 321 in the up-down direction can be determined, and the amplitude of the vehicle vibration in the up-down direction can be determined.

In some examples, the magnetic field strength at the same height on the sensing scale 40 is the same, so that the magnetic field strength sensed by the first sensing surface 321 does not change when the first sensing surface 321 rotates relative to the sensing scale 40, so as to avoid that the distance that the first sensing surface 321 moves relative to the second sensing surface 42 cannot be determined by analyzing the magnetic field strength sensed by the magnetic induction device 30 when the first sensing surface 321 rotates relative to the sensing scale 40.

In some embodiments of the present invention, as shown in fig. 2, the shock absorber 1 includes a first mating member 10 and a second mating member 20, the first mating member 10 includes a first magnetic member 12, the second mating member 20 includes a second magnetic member 22, the first magnetic member 12 and the second magnetic member 22 are disposed opposite each other, the first magnetic member 12 and the second magnetic member 22 magnetically mate such that the first mating member 10 and the second mating member 20 move toward or away from each other in a first direction, the magnetic induction device 30 is fixed to one of the first mating member 10 and the second mating member 20, and the induction ruler 40 is fixed to the other of the first mating member 10 and the second mating member 20.

When the vehicle vibrates, the first matching member 10 and the second matching member 20 move in opposite directions along the first direction, the magnetic induction device 30 and the induction ruler 40 move in opposite directions along the first direction under the driving of the first matching member 10 and the second matching member 20, and at this time, the first induction surface 321 on the magnetic induction device 30 moves relative to the position of the induction ruler 40 along the first direction, so that the magnetic field intensity sensed by the magnetic induction device 30 changes to determine the distance of the relative movement between the magnetic induction device 30 and the induction ruler 40, and further determine the amplitude of the vehicle vibration.

Under the action of the first magnetic element 12 and the second magnetic element 22, damping force is provided between the first matching element 10 and the second matching element 20, so as to drive the first matching element 10 and the second matching element 20 to move in opposite directions or opposite directions along the direction opposite to the vibration of the vehicle, so as to buffer the vibration of the vehicle, and meanwhile, the first matching element 10 and the second matching element 20 drive the magnetic induction device 30 and the induction ruler 40 to move along the first direction along the direction opposite to the direction along which the first matching element 10 and the second matching element 20 vibrate, and at the moment, the magnetic field intensity on the induction ruler 40 sensed by the magnetic induction device 30 changes, so that the vibration reduction condition of the vibration absorber 1 can be timely fed back.

In some embodiments, the vehicle comprises a vehicle body and an axle, when the vibration reduction member 1 is applied to the vehicle, the first matching member 10 is connected with the vehicle body, the second matching member 20 is connected with the axle, when the vehicle runs on a road surface, due to uneven road surface, the wheel can vibrate along a first direction, the wheel drives the second matching member 20 to move along the first direction relative to the first matching member 10 through the axle, the induction ruler 40 moves along the first direction relative to the magnetic induction device 30, and the position of the first induction surface 321 relative to the induction ruler 40 can be determined by determining the magnetic field intensity at different positions on the induction ruler 40 measured by the magnetic induction device 30, so as to determine the moving distance of the second matching member 20 relative to the first matching member 10 along the first direction.

For example, when the first matching member 10 and the second matching member 20 move towards or away from each other along the first direction, the magnetic induction device 30 moves from the first position to the second position relative to the induction ruler 40, the distance of the magnetic induction device 30 moving relative to the induction ruler 40 can be determined by recording the magnetic field intensity sensed by the magnetic induction device 30 at the first position, recording the magnetic induction intensity sensed by the magnetic induction device 30 at the second position, analyzing the magnetic field intensity sensed by the magnetic induction device 30 at the two positions.

Through confirming the distance that magnetic induction device 30 moved for induction ruler 40, can confirm the distance that second cooperation spare 20 moved for first cooperation spare 10, and then can analyze the range of axle vibration to confirm the degree of first magnetic part 12 and second magnetic part 22 complex according to the condition that the axle took place the vibration, confirm the size of the power of shock absorber 1 output, and then respond the condition that the vehicle took place the vibration for shock absorber 1, make shock absorber 1 can fully cushion the vibration of axle adaptively, and then fully cushion the vibration of wheel, in order to fully reduce the vibration that the wheel transmitted the automobile body, and then be convenient for improve the comfort level of driver in the vehicle.

When the amplitude of vibration received by the wheel is larger, the wheel drives the second matching piece 20 to move relatively to the first matching piece 10 through the axle, and when the amplitude of vibration received by the wheel is smaller, the wheel drives the second matching piece 20 to move relatively to the first matching piece 10 through the axle, the magnitude of magnetic force between the first magnetic piece 12 and the second magnetic piece 22 is determined according to the distance that the second matching piece 20 moves relatively to the first matching piece 10 along the first direction, namely, the damping force between the first matching piece 10 and the second matching piece 20 is determined, so that the second matching piece 20 can move along the direction opposite to the vibration direction of the axle, the vibration of the axle can be blocked, the tire of the vehicle can be attached to the ground as much as possible, the vibration of the wheel can be slowed down, the vibration transmitted to the vehicle body by the wheel is reduced, and the comfort of a driver is improved.

In some alternative embodiments of the present invention, the first magnetic member 12 is a wound coil and the second magnetic member 22 is a permanent magnet, which is arranged to facilitate reducing the difficulty of winding while simultaneously facilitating energizing the wound coil.

Specifically, because the second matching piece 20 is connected with the axle, the first matching piece 10 is connected with the automobile body, when the automobile encounters an uneven road surface, the vibration of the wheel can be transmitted to the second matching piece 20 through the axle, the first magnetic piece 12 is a winding coil, the second magnetic piece 22 is a permanent magnet, when the wheel vibrates, the wheel can drive the permanent magnet on the second matching piece 20 to vibrate and can not directly drive the winding coil on the first matching piece 10 to vibrate, so that the length of a power supply line can be conveniently reduced when the winding coil is supplied with power, the power supply line can be prevented from being pulled, the power supply line can be prevented from being worn, stable power supply of the power supply line to the winding coil can be ensured, and the working stability of the shock absorber 1 can be conveniently improved.

In some alternative embodiments of the present invention, as shown in fig. 2 and 3, the sensing rule 40 and the second magnetic member 22 are disposed on the second matching member 20 at intervals along the first direction, so that the second magnetic member 22 and the sensing rule 40 keep a certain distance along the first direction, and further, it is capable of avoiding that the magnetic field on the second magnetic member 22 will affect the magnetic field on the sensing rule 40, so that the first sensing surface 321 can accurately sense the magnetic field intensity at different positions on the sensing rule 40, and avoid that the magnetic field intensity sensed by the first sensing surface 321 has deviation due to the influence of the second magnetic member 22, and the judgment of the moving distance of the second matching member 20 relative to the first matching member 10 is affected.

In some embodiments, the first direction extends in an up-down direction, and the second magnetic member 22 and the induction ruler 40 are spaced apart in the up-down direction to avoid the magnetic field on the second magnetic member 22 and the magnetic field on the induction ruler 40 from affecting each other.

In some embodiments of the present invention, the magnetic induction device 30 includes a mounting portion 31 and a sensing head 32, the mounting portion 31 is mounted to the first matching member 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 member 12, so that when the sensing head 32 senses the magnetic field intensity at a corresponding position on the sensing scale 40, the area of the sensing scale 40 sensed by the sensing head 32 can be away from the first magnetic member 12, so as to avoid the magnetic fields at the sensed areas on the first magnetic member 12 and the sensing scale 40 from affecting each other, and further, the first sensing surface 321 can accurately sense the magnetic field intensity at different positions on the sensing scale 40 from being affected by the first magnetic member 12, and the magnetic field intensity sensed by the first sensing surface 321 has a deviation, so as to affect the judgment of the moving distance of the second matching member 20 relative to the first matching member 10.

In some embodiments, as shown in fig. 2, 3 and 10, the first direction extends along the up-down direction, the mounting portion 31 is disposed at the lower end of the first matching member 10, the sensing head 32 is disposed at the lower end of the first magnetic member 12, and the first sensing surface 321 on the sensing head 32 can sense the magnetic field intensity on the sensing rule 40 corresponding to the first sensing surface in level, so that the sensing head 32 and the first magnetic member 12 are disposed at intervals along the up-down direction, so that the sensed areas on the first magnetic member 12 and the sensing rule 40 can be disposed at intervals along the up-down direction, so as to avoid the mutual influence of the first magnetic member 12 and the sensing rule 40.

As shown in fig. 2 and 4, when the second matching element 20 moves upward relative to the first matching element 10, the second magnetic element 22 and the sensing rule 40 on the second matching element 20 move upward relative to the first matching element 10, and the sensing rule 40 moves towards the direction close to the first magnetic element 12, and the sensing head 32 on the magnetic induction device 30 can sense the magnetic field intensity in the area below the sensing rule 40, and because a certain distance is provided between the sensing head 32 and the first magnetic element 12, a certain distance is provided between the area of the sensing rule 40 which is sensed by the magnetic induction device 30 and the first magnetic element 12, so as to avoid the influence of the first magnetic element 12 on the magnetic field intensity in the area below the sensing rule 40.

As shown in fig. 2 and 6, when the second matching member 20 moves downward relative to the first matching member 10, the second magnetic member 22 and the sensing rule 40 on the second matching member 20 move downward relative to the first matching member 10, the sensing rule 40 moves away from the first magnetic member 12, the sensing head 32 on the magnetic induction device 30 can sense the magnetic field intensity in the area above the sensing rule 40, the distance between the sensing rule 40 and the first magnetic member 12 is longer, and the influence of the first magnetic member 12 on the magnetic field intensity in the area above the sensing rule 40 can be avoided.

In some examples, the coercivity of first magnetic element 12 is less than the coercivity of inductive scale 40 to avoid magnetizing inductive scale 40 when inductive scale 40 is in close proximity to first magnetic element 12, e.g., when the lower region of inductive scale 40 is opposite the upper region of first magnetic element 12, first magnetic element 12 may magnetize inductive scale 40 to avoid first magnetic element 12 changing the magnetic field strength of inductive scale 40, affecting the determination of the magnetic field strength on inductive scale 40 by inductive head 32, and affecting the determination of the distance second mating element 20 moves relative to first mating element 10.

In some embodiments, the first magnetic element 12 is a winding coil, the coercive force of the first magnetic element 12 is determined by the magnitude of the current, the winding mode, etc., and the induction ruler 40 is a permanent magnet, so that the coercive force of the first magnetic element 12 is smaller than that of the induction ruler 40, so as to avoid that the first magnetic element 12 magnetizes the induction ruler 40, and avoid that the first magnetic element 12 changes the magnetic field intensity of the induction ruler 40.

Further, since the first magnetic member 12 is a wound coil, the induction ruler 40 does not magnetize the first magnetic member 12, and although the coercive force of the first magnetic member 12 is smaller than that of the induction ruler 40, there is no fear that the induction ruler 40 will change the magnetic field strength of the first magnetic member 12, and the force between the first magnetic member 12 and the second magnetic member 22 will not be affected, and the vibration damping effect of the vibration damper 1 will not be affected.

In some embodiments of the present invention, as shown in fig. 10, the mounting portion 31 includes a connection end 311 and a connection rod 312, the connection end 311 is fixed to an end of the first mating member 10, the connection rod 312 extends along a first direction, one end of the connection rod 312 is connected to the connection end 311, and the other end is connected to the induction head 32, so that the induction head 32 is disposed at an end of the mounting portion 31 far from the first magnetic member 12, so that the first magnetic member 12 and the induction head 32 are kept relatively stationary, and a certain distance is kept between the induction head 32 and the first magnetic member 12, so as to avoid that the first magnetic member 12 affects the magnetic field strength of the portion of the induction ruler 40 induced by the induction head 32.

In some embodiments, as shown in fig. 10, the connecting end 311 has a plurality of fixing holes 3111, and a fastener can be inserted through the fixing holes 3111 to be engaged with an end portion of the first fitting 10 to fix the connecting end 311 to the end portion of the first fitting 10, and further fix the magnetic induction device 30 to the end portion of the first fitting 10, so that the induction ruler 40 can move relative to the induction head 32 in the first direction when the second fitting 20 moves relative to the first fitting 10 in the first direction, so that the induction head 32 can sense magnetic field intensity at different positions on the induction ruler 40, and the distance of the second fitting 20 moving relative to the first fitting 10 can be determined by analyzing the different magnetic field intensities sensed by the induction head 32.

In some alternative embodiments of the present invention, as shown in fig. 2, the second matching member 20 further includes a housing portion 21, the housing portion 21 defines a movable cavity 211, the second magnetic member 22 is fixed on an inner wall of the movable cavity 211, the first magnetic member 12 is movably disposed in the movable cavity 211, the movable cavity 211 is utilized to define a moving direction of the second magnetic member 22 relative to the first magnetic member 12, and further define a moving direction of the second matching member 20 relative to the first matching member 10, so as to buffer vibration of the vehicle by utilizing relative movement of the first matching member 10 and the second matching member 20, and further buffer vibration of the vehicle wheels, so as to reduce vibration transmitted to the vehicle body by the vehicle wheels, and further facilitate improving comfort of a driver in the vehicle.

Wherein, the inner bottom wall of the movable cavity 211 is provided with the buffer portion 50, when the first magnetic element 12 moves in the movable cavity 211, the buffer portion 50 can buffer the impact force received by the first magnetic element 12 when the first magnetic element 12 moves to the bottom of the movable cavity 211, so as to avoid the first magnetic element 12 from directly striking the bottom of the movable cavity 211 and avoid the collision between the first magnetic element 12 and the shell 21 when the first magnetic element 12 moves in the movable cavity 211.

In some embodiments of the present invention, as shown in fig. 2, the first mating element 10 further includes a connecting shaft 11, the first magnetic element 12 is sleeved on the connecting shaft 11, the connecting shaft 11 has a sliding portion, the housing portion 21 has a sliding mating portion, and the sliding mating portion mates with the sliding portion to guide the moving direction of the housing portion 21, so that the housing portion 21 can slide smoothly along the first direction relative to the connecting shaft 11.

Specifically, when the housing portion 21 slides along the first direction relative to the connecting shaft 11, the second matching member 20 can drive the induction ruler 40 to slide along the first direction relative to the magnetic induction device 30, and when the second matching member 20 moves along the first direction relative to the second matching member 20 due to the acting force of the axle, the magnetic induction device 30 can sense the magnetic field intensity on the induction ruler 40 at the corresponding position, the amplitude of vibration of the second matching member 20 relative to the first matching member 10 can be determined by analyzing the magnetic field intensity sensed by the magnetic induction device 30, the amplitude of axle vibration can be determined, the magnetic force between the first matching member 10 and the second matching member 20 can be determined according to the amplitude of axle vibration, so that the second matching member 20 can move along the direction opposite to the axle vibration, and vibration of a vehicle can be buffered, vibration transmitted to the vehicle body can be reduced, and comfort of a driver and passengers can be improved.

In some embodiments, one of the sliding portion and the sliding engagement portion is formed as a sliding groove 113, and the other is formed as a sliding rail, which is slidably engaged with the sliding groove 113 to restrict the sliding direction of the housing portion 21 with respect to the connection shaft 11, and thus the sliding direction of the second engagement member 20 with respect to the first engagement member 10.

In some examples, as shown in fig. 2, the housing portion 21 has a sliding rail (not shown) thereon, the sliding rail extends along a first direction, a sliding groove 113 is provided in the connecting shaft 11, the sliding rail extends along the first direction, the sliding rail extends into the sliding groove 113, and when the second mating member 20 is subjected to the force of the axle, the sliding rail moves along the first direction relative to the sliding groove 113 to limit the movement direction of the second mating member 20 when the second mating member 20 moves relative to the first mating member 10.

In some embodiments, as shown in fig. 3, the connecting shaft 11 includes a shroud 111 and a support plate 112, the support plate 112 is located at one end of the shroud 111, the first magnetic member 12 is sleeved on the shroud 111, and the end of the first magnetic member 12 abuts against the support plate 112, so that the position of the first magnetic member 12 is limited by the support plate 112 and the shroud 111, and the first magnetic member 12 is prevented from falling off from the first matching member 10.

In some examples, as shown in fig. 2 and 3, the shroud 111 extends in the up-down direction, the shroud 111 is formed in a ring shape on a projection in the up-down direction, the support plate 112 is disposed below the shroud 111, the support plate 112 extends in the horizontal direction, the first magnetic member 12 is sleeved on the shroud 111, and the lower end of the first magnetic member 12 is in stop fit with the support plate 112, so that the position of the first magnetic member 12 in the up-down direction is limited by the support plate 112 and the shroud 111, and the first magnetic member 12 is prevented from falling off from the first matching member 10, and it should be understood that the above limitation is only for convenience of description of the drawings, and does not limit the actual installation position and direction of the shock absorber 1 for a vehicle.

In some embodiments, as shown in fig. 3, the magnetic induction device 30 is fixed on a side of the support plate 112 away from the coaming 111, so that the magnetic induction device 30 is disposed at a position away from the first magnetic element 12 as far as possible, so that the first induction surface 321 is disposed away from the first magnetic element 12, the magnetic field of the area on the second induction surface 42 induced by the first induction surface 321 is avoided from being influenced by the first magnetic element 12, the induction of the magnetic field intensity on the second induction surface 42 by the first induction surface 321 is avoided, so that the different magnetic field intensities induced by the first induction surface 321 can be analyzed later, the moving distance of the first induction surface 321 relative to the second induction surface 42 is determined, and the moving distance of the second matching element 20 relative to the first matching element 10 is determined.

In some embodiments of the present invention, the magnetic induction device 30 is a hall sensor, which is a type of magnetic field sensor fabricated according to the hall effect that is capable of sensing the magnetic field strength at a corresponding area on the induction ruler 40 when the second mating element 20 moves relative to the first mating element 10.

The following describes the suspension system 6 according to the embodiment of the present invention. The suspension system 6 according to the embodiment of the present invention includes the shock absorber 1 according to the above-described embodiment of the present invention.

According to the suspension system 6 of the embodiment of the present invention, by using the shock absorber 1 according to the above-described embodiment of the present invention, 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 are relatively rotated, so that the stability of the sensing by the first sensing surface 321 and the second sensing surface 42 can be improved.

In some embodiments of the present invention, as shown in fig. 1-3, the suspension system 6 further includes a lower fork arm 60 and an axle, where the lower fork arm 60 is connected to the shock absorber 1 and the axle, respectively, the lower fork arm 60 defines a avoidance cavity 61, and the avoidance cavity 61 is used for avoiding the magnetic induction device 30 or the induction ruler 40, and when the magnetic induction device 30 and the induction ruler 40 relatively move along the first direction, the lower fork arm 60 can reserve a space for the movement of the magnetic induction device 30 or the induction ruler 40, so as to reduce the reserved space of the shock absorber 1 for the magnetic induction device 30 or the induction ruler 40, and facilitate the miniaturization design of the shock absorber 1.

In some embodiments, the shock absorber 1 comprises a first mating member 10 and a second mating member 20, the magnetic induction device 30 is fixed to one of the first mating member 10 and the second mating member 20, and the induction ruler 40 is fixed to the other of the first mating member 10 and the second mating member 20.

In an example one, as shown in fig. 2 and 3, the second matching member 20 defines a movable cavity 211, the first matching member 10 is disposed in the movable cavity 211, the magnetic induction device 30 is disposed in the first matching member 10, the sensing ruler 40 is disposed in the second matching member 20, at least a part of the sensing ruler 40 is disposed in the avoidance cavity 61, when the second matching member 20 is acted by the axle to move up and down, the first matching member 10 moves in the movable cavity 211, and at this time, the magnetic induction device 30 moves in the movable cavity 211.

Specifically, the magnetic induction device 30 is disposed below the first mating member 10, the avoidance cavity 61 is disposed below the movable cavity 211, and the avoidance cavity 61 is disposed on the lower yoke 60, so that when the first mating member 10 moves in the up-down direction in the movable cavity 211, the magnetic induction device 30 can move in the up-down direction in the movable cavity 211 and the avoidance cavity 61, thus the space occupied by the magnetic induction device 30 in the movable cavity 211 is conveniently reduced, and further the miniaturization design of the movable cavity 211 is facilitated, so that the miniaturization design of the shock absorber 1 is conveniently realized.

In some examples, as shown in fig. 7, a buffer portion 50 is disposed at the bottom of the movable cavity 211, an avoidance hole 51 is disposed on the buffer portion 50, the avoidance hole 51 is located above the avoidance cavity 61, and when the first mating member 10 moves to the lower portion of the movable cavity 211, the buffer portion 50 can buffer the collision between the first mating member 10 and the second mating member 20, and at this time, the magnetic induction device 30 can enter the avoidance cavity 61 from the avoidance hole 51.

In the second example, the second matching member 20 defines a movable cavity 211, the first matching member 10 is disposed in the movable cavity 211, the sensing ruler 40 is disposed on the first matching member 10, the magnetic induction device 30 is disposed on the second matching member 20, when the second matching member 20 receives the acting force of the axle to move in the up-down direction, the first matching member 10 moves in the movable cavity 211, and at this time, the sensing ruler 40 moves in the movable cavity 211.

Specifically, the induction ruler 40 is disposed below the first matching member 10, the avoidance cavity 61 is located below the movable cavity 211, the avoidance cavity 61 is formed in the lower fork arm 60, when the first matching member 10 moves in the up-down direction in the movable cavity 211, the induction ruler 40 can move in the up-down direction in the movable cavity 211 and the avoidance cavity 61, the space occupied by the induction ruler 40 in the movable cavity 211 is conveniently reduced, the miniaturization design of the movable cavity 211 is facilitated, and the miniaturization design of the shock absorber 1 is conveniently realized.

In the third example, the first engaging member 10 is disposed outside the second engaging member 20, for example, the first engaging member 10 is sleeved outside the second engaging member 20, the magnetic induction device 30 is disposed at the lower end of the first engaging member 10, the sensing ruler 40 is disposed at the lower end of the second engaging member 20, at least a portion of the sensing ruler 40 is disposed in the avoidance cavity 61, and when the second engaging member 20 is acted by the axle and moves in the up-down direction, the first engaging member 10 moves in the up-down direction relative to the second engaging member 20 and the lower fork arm 60, the avoidance cavity 61 is capable of avoiding the movement of the magnetic induction device 30, so that no additional space is required for the movement of the magnetic induction device 30 when the suspension system 6 is installed.

In the fourth example, the first engaging member 10 is disposed outside the second engaging member 20, for example, the first engaging member 10 is sleeved outside the second engaging member 20, the sensing ruler 40 is disposed at the lower end of the first engaging member 10, the magnetic induction device 30 is disposed at the lower end of the second engaging member 20, and when the second engaging member 20 is acted on by the axle and moves in the vertical direction, the first engaging member 10 moves in the vertical direction relative to the second engaging member 20 and the lower fork arm 60, and the avoidance cavity 61 is capable of avoiding the movement of the sensing ruler 40, so that no additional space is reserved for the movement of the sensing ruler 40 when the suspension system 6 is installed.

A vehicle according to an embodiment of the present invention is described below. The vehicle according to the embodiment of the invention includes the shock absorber 1 for a vehicle according to the above-described embodiment of the invention.

According to the vehicle of the embodiment of the present invention, by using the suspension system 6 according to the above-described embodiment of the present invention, by making at least one of the first sensing surface 321 and the second sensing surface 42 be an arc surface, the sensing can be maintained even when the first sensing surface 321 and the second sensing surface 42 are relatively rotated, so that the stability of the sensing of the first sensing surface 321 and the second sensing surface 42 can be facilitated to be improved.

Other components and operations of a vehicle according to embodiments of the invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more. In the description of the invention, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.

In the description of the invention, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (18)

1. A shock absorber (1) for a vehicle, characterized by comprising:

-a magnetic induction device (30), the magnetic induction device (30) having a first induction surface (321);

a sensing rule (40), the sensing rule (40) having a second sensing surface (42),

wherein at least one of the first sensing surface (321) and the second sensing surface (42) is formed as an arc surface.

2. The shock absorber (1) for a vehicle according to claim 1, wherein magnetic field strengths at different positions of the induction ruler (40) are different in a first direction, wherein the first induction surface (321) corresponds to the second induction surface (42) to induce magnetic fields at different positions of the induction ruler (40).

3. A shock absorber (1) for a vehicle according to claim 2, wherein a central axis of the circular arc surface extends in the first direction.

4. The shock absorber (1) for a vehicle according to claim 1, wherein the first sensing surface (321) and the second sensing surface (42) are each formed as an arc surface, and the first sensing surface (321) and the second sensing surface (42) are disposed in parallel.

5. Shock absorber (1) for vehicles according to claim 1, characterized by comprising:

-a first mating element (10), the first mating element (10) comprising a first magnetic element (12);

a second mating member (20), the second mating member (20) comprising a second magnetic member (22), the first magnetic member (12) and the second magnetic member (22) being disposed opposite and magnetically mated such that the first mating member (10) and the second mating member (20) move toward or away from each other in a first direction,

the magnetic induction device (30) is fixed to one of the first mating member (10) and the second mating member (20), and the induction ruler (40) is fixed to the other of the first mating member (10) and the second mating member (20).

6. The shock absorber (1) for a vehicle according to claim 5, wherein the first magnetic member (12) is a wound coil and the second magnetic member (22) is a permanent magnet.

7. The shock absorber (1) for a vehicle according to claim 5, wherein the induction ruler (40) and the second magnetic member (22) are disposed at a distance from the second mating member (20) in the first direction.

8. The shock absorber (1) for a vehicle according to claim 7, wherein the magnetic induction device (30) includes a mounting portion (31) and a sense head (32), the mounting portion (31) being mounted to the first mating member (10), the sense head (32) having the second sensing surface (42), the sense head (32) being provided at an end of the mounting portion (31) remote from the first magnetic member (12).

9. The shock absorber (1) for a vehicle according to claim 8, wherein the mounting portion (31) includes:

-a connection end (311), said connection end (311) being fixed to an end of said first mating member (10);

the connecting rod (312), connecting rod (312) is followed first direction extends, connecting rod (312) one end with link (311) are connected, the other end with inductive head (32).

10. The shock absorber (1) for a vehicle according to claim 5, wherein the second mating member (20) further comprises a housing portion (21), the housing portion (21) defining a movable chamber (211), the second magnetic member (22) being fixed to an inner wall of the movable chamber (211), the first magnetic member (12) being movably provided in the movable chamber (211), an inner bottom wall of the movable chamber (211) being provided with a buffer portion (50).

11. The shock absorber (1) for a vehicle according to claim 10, wherein the first fitting (10) further comprises a connecting shaft (11), the first magnetic member (12) is fitted over the connecting shaft (11), the connecting shaft (11) has a sliding portion, the housing portion (21) has a sliding fitting portion that is fitted with the sliding portion to guide a moving direction of the housing portion (21).

12. Shock absorber (1) for vehicles according to claim 11, characterized in that one of the sliding part and the sliding mating part is formed as a sliding groove (113) and the other is formed as a sliding rail.

13. The shock absorber (1) for a vehicle according to claim 11, wherein the connecting shaft (11) includes a bulkhead (111) and a support plate (112), the support plate (112) is located at one end of the bulkhead (111), the first magnetic member (12) is sleeved on the bulkhead (111), and an end of the first magnetic member (12) is stopped against the support plate (112).

14. Shock absorber (1) for vehicles according to claim 13, characterized in that the magnetic induction means (30) are fixed to the side of the support plate (112) remote from the coaming (111).

15. Shock absorber (1) for vehicles according to any of claims 1-14, characterized in that said magnetic induction means (30) are hall sensors.

16. A suspension system (6), characterized by comprising: shock absorber (1) for a vehicle according to any one of claims 1-15.

17. The suspension system (6) of claim 16 further comprising a lower yoke (60) and an axle, the lower yoke (60) being connected to the shock absorber (1) and the axle, respectively;

The lower fork arm (60) defines an avoidance cavity (61) for avoiding the magnetic induction device (30) or the induction ruler (40).

18. A vehicle comprising a suspension device according to claim 16 or 17.