Shock absorber, suspension assembly and vehicle

Abstract

The invention discloses a shock absorber, a suspension assembly and a vehicle, the shock absorber comprises an electromagnetic damper, and when the electromagnetic damper is powered on, the electromagnetic damper generates resistance for restraining the shock absorber from moving in the axial direction of the electromagnetic damper. Therefore, axial movement of the shock absorber can be prevented, the height of a vehicle body can be kept unchanged, and vibration of the vehicle is reduced. Moreover, when the electromagnetic damper is electrified, the intensity of damping can be controlled by adjusting the magnitude of internal current and the intensity of a magnetic field, so that different damping forces can be generated, and the function of the active shock absorber with adjustable damping is realized.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a shock absorber, suspension assembly, and vehicle. Background Technology

[0002] In existing technologies, shock absorbers generally use hydraulic dampers. However, hydraulic dampers suffer from slow response times, and their damping is not adjustable, leading to vibrations during vehicle operation and affecting driver comfort. Furthermore, when active control of the shock absorber is required, the damper needs to be treated as a rigid body to avoid hysteresis, but conventional hydraulic dampers cannot be treated as rigid bodies. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a shock absorber in which an electromagnetic damper can prevent axial movement of the shock absorber, thereby maintaining a constant vehicle height and reducing vehicle vibration. Furthermore, when the electromagnetic damper is energized, the damping strength can be controlled by adjusting the magnitude of the internal current and the strength of the magnetic field, thereby generating different damping forces and realizing the function of an adjustable active shock absorber.

[0004] The present invention further proposes a suspension assembly.

[0005] The present invention also proposes a vehicle.

[0006] According to a first aspect of the present invention, a vibration damper includes: an electromagnetic damper, which, when energized, generates resistance that inhibits movement of the vibration damper in its axial direction.

[0007] This prevents axial movement of the shock absorber, thus maintaining a constant vehicle height and reducing vehicle vibration. Furthermore, when the electromagnetic damper is energized, the damping strength can be controlled by adjusting the internal current and magnetic field strength, thereby generating different damping forces and achieving the function of an adjustable active shock absorber.

[0008] According to some embodiments of the present invention, the vibration damper further includes: an actuator, wherein the electromagnetic damper is disposed on the actuator, and the electromagnetic damper generates resistance to inhibit the movement of the actuator in its axial direction.

[0009] According to some embodiments of the present invention, the shock absorber further includes: a drive mechanism, the actuator being connected to the drive mechanism, the drive mechanism selectively driving the actuator to move, and one of the drive mechanism and the actuator being adapted to be connected to the vehicle body end and the other being adapted to be connected to the wheel end.

[0010] According to some embodiments of the present invention, the electromagnetic damper includes: a primary component; a secondary component, one of the primary component and the secondary component being disposed in the drive mechanism and the other being disposed in the actuator, the secondary component being movable relative to the primary component with the actuator; wherein, when the electromagnetic damper is energized, the primary component and the secondary component generate the resistance through a magnetic field.

[0011] According to some embodiments of the present invention, the primary component includes: a magnetic element, which is stacked along the moving direction of the actuator.

[0012] According to some embodiments of the present invention, the secondary component includes an electromagnetic element, which is sleeved on the actuator. When the electromagnetic element is energized, the primary component and the secondary component generate electromagnetic force through a magnetic field.

[0013] According to some embodiments of the present invention, the magnetic element includes: a radially magnetized magnetic element; an axially magnetized magnetic element, wherein the radially magnetized magnetic element and the axially magnetized magnetic element are arranged in an alternating stacked manner.

[0014] According to some embodiments of the present invention, the magnetic components are arranged in a Hellbeck array manner.

[0015] According to some embodiments of the present invention, the magnetic component is a ring-shaped magnet.

[0016] According to some embodiments of the present invention, the electromagnetic component includes: an iron core, the iron core being sleeved on the actuator; An electromagnetic coil is disposed on the iron core.

[0017] According to some embodiments of the present invention, when the electromagnetic coil is energized, the primary component and the secondary component generate the electromagnetic force through a magnetic field.

[0018] According to some embodiments of the present invention, the iron core includes: a plurality of iron core units, the plurality of iron core units being stacked along the moving direction of the actuator, a wire groove being formed between two adjacent iron core units, and the electromagnetic coil being wound in the wire groove.

[0019] According to some embodiments of the present invention, the core unit includes: a yoke portion sleeved on the actuator; and teeth portion disposed on the outer periphery of the yoke portion.

[0020] According to some embodiments of the present invention, in the moving direction of the actuator, the yoke is formed with a protrusion protruding from the tooth, the protrusion forming at least a portion of the bottom of the groove.

[0021] According to some embodiments of the present invention, the secondary component includes the electromagnetic element, the yoke is formed with a through hole, and the actuator passes through the through hole and is interference-fitted with the through hole.

[0022] According to some embodiments of the present invention, the iron core unit includes: a plurality of magnetic sheets, wherein the plurality of magnetic sheets are arranged in a radial array along the circumferential direction of the actuator.

[0023] According to some embodiments of the present invention, the core unit further includes: metal powder, with a gap formed between two adjacent magnetic sheets, and the metal powder filling the gap.

[0024] According to some embodiments of the present invention, the vibration damper further includes: a limiting member disposed on the actuator, the limiting member being at least located on the side of the secondary component away from the drive mechanism, to limit the position of the secondary component relative to the actuator in the direction of movement of the actuator.

[0025] According to some embodiments of the present invention, the actuator is provided with a limiting groove at least on the side away from the drive mechanism, and the limiting member is partially engaged in the limiting groove.

[0026] According to some embodiments of the present invention, the limiting member is constructed as a retaining ring.

[0027] According to some embodiments of the present invention, the electromagnetic damper further includes: a housing, wherein the primary component and the secondary component are located within the housing, and the primary component is mounted on the inner wall of the housing.

[0028] According to some embodiments of the present invention, the actuator passes through the housing, and the housing is disposed on the drive mechanism.

[0029] According to some embodiments of the present invention, the drive mechanism includes: a motor; a transmission mechanism, the transmission mechanism being connected to the motor and the actuator respectively, so as to convert the rotational motion of the motor into the movement of the actuator.

[0030] According to some embodiments of the present invention, the transmission mechanism includes a cylindrical cam connected to the motor, the cylindrical cam having a curved groove.

[0031] According to some embodiments of the present invention, the actuator is provided with a cam follower, which is movably disposed on the curved groove. When the motor drives the cylindrical cam to rotate, the cam follower converts its motion on the curved groove into the movement of the actuator.

[0032] According to some embodiments of the present invention, the motor includes: a stator; a rotor, the rotor being disposed within the stator, the rotor being fixedly connected to the cylindrical cam, and the inner circumference of the cylindrical cam having the curved groove formed thereon.

[0033] According to some embodiments of the present invention, the drive mechanism further includes: a housing, wherein the stator, the rotor and the cylindrical cam are located within the housing, and the stator is mounted on the inner wall of the housing; and a bearing, wherein the bearing is mounted within the housing and is used to support the cylindrical cam.

[0034] According to some embodiments of the present invention, the drive mechanism further includes a guide rod, which is mounted on the housing and guides the actuator.

[0035] According to some embodiments of the present invention, the vibration damper further includes: an elastic damping mechanism, one end of which is connected to the drive mechanism and the other end of which is adapted to move synchronously with the actuator.

[0036] According to some embodiments of the present invention, the elastic damping mechanism includes: a spring, the spring being sleeved on the electromagnetic damper and the actuator.

[0037] According to some embodiments of the present invention, the vibration damper further includes: a first mounting base, the first mounting base being connected to the drive mechanism and constituting one end of the elastic vibration damping mechanism; and / or a second mounting base, the second mounting base constituting the other end of the elastic vibration damping mechanism, one end of the spring abutting against the first mounting base and the other end abutting against the second mounting base.

[0038] According to a second aspect of the present invention, a suspension assembly includes the above-described shock absorber.

[0039] A vehicle according to a third aspect of the present invention includes: the shock absorber described above or the suspension assembly described above.

[0040] 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. Attached Figure Description

[0041] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of a vibration damper according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of a vibration damper according to an embodiment of the present invention; Figure 3This is a schematic diagram of the structure of the actuator with an electromagnetic damper according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the housing of the electromagnetic damper according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of the housing of the electromagnetic damper according to an embodiment of the present invention; Figure 6 This is a cross-sectional view of an electromagnetic damper according to an embodiment of the present invention; Figure 7 This is a schematic diagram of a structure of multiple magnetic components stacked according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the iron core structure according to an embodiment of the present invention; Figure 9 This is a cross-sectional schematic diagram of the iron core according to an embodiment of the present invention; Figure 10 This is a partial schematic diagram of the arrangement of multiple iron core units according to an embodiment of the present invention; Figure 11 This is a cross-sectional view of a plurality of iron core units arranged according to an embodiment of the present invention; Figure 12 This is a schematic diagram of the structure of the limiting member according to an embodiment of the present invention.

[0042] Figure label: 100. Vibration damper; 10. Drive mechanism; 11. Motor; 111. Stator; 112. Rotor; 12. Transmission mechanism; 121. Cylindrical cam; 1211. Curved groove; 122. Cam follower; 13. Housing; 14. Bearing; 15. Guide rod; 16. Third mounting platform; 20. Actuator; 21. Limiting groove; 30. Electromagnetic damper; 31. Primary assembly; 32. Secondary assembly; 33. Second mounting platform; 40. Magnetic components; 41. Radially magnetized magnetic components; 42. Axially magnetized magnetic components; 50. Iron core; 501. Iron core unit; 5011. Yoke; 50111. Protrusion; 50112. Through hole; 5012, toothed part; 502, wire groove; 51, electromagnetic coil; 60. Limiting component; 70. Housing; 80. Elastic vibration damping mechanism; 81. First mounting base; 811. First mounting platform; 82. Second mounting bracket; 83. Spring; 90. Fastener; 91. Lower fork arm; 92. First end cap; 93. Second end cap; 94. Resolver sensor; 95. Cooling water pipe; 96. Electromagnetic component. Detailed Implementation

[0043] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0044] The following is for reference. Figures 1-12 A vibration damper 100 according to an embodiment of the present invention is described.

[0045] Reference Figures 1-2 As shown, the vibration damper 100 of the first aspect embodiment of the present invention includes: an electromagnetic damper 30, which generates resistance to suppress the movement of the vibration damper 100 in its axial direction when the electromagnetic damper 30 is energized.

[0046] Specifically, traditional shock absorbers typically use hydraulic dampers. Hydraulic dampers suffer from slow response times, and their damping is not adjustable, leading to vibrations during vehicle operation and impacting driver comfort. Furthermore, when actively controlling the shock absorber, the damper needs to be treated as a rigid body to avoid hysteresis, but conventional hydraulic dampers cannot be treated as rigid bodies.

[0047] Therefore, the vibration damper 100 needs to be optimized. The vibration damper 100 is equipped with an electromagnetic damper 30. The electromagnetic damper 30 uses electromagnetic principles to achieve the damping effect of the vibration damper 100. That is, when a conductor moves in a magnetic field, an induced electromotive force will be generated inside the conductor according to Faraday's law of electromagnetic induction. The current generated by the induced electromotive force will be subjected to the Lorentz force in the magnetic field. The Lorentz force will exert a reverse resistance on the conductor, thereby achieving the damping effect.

[0048] Similarly, when the electromagnetic damper 30 is energized, it can generate resistance to suppress the movement of the shock absorber 100, that is, generate a force opposite to the direction of movement of the shock absorber 100, which can prevent the actuator 20 from axially moving, thereby maintaining the vehicle height and reducing vehicle vibration.

[0049] Furthermore, the electromagnetic damper 30 is equipped with a coil and a magnet. When the electromagnetic damper 30 is energized, the damping strength can be controlled by adjusting the magnitude of the current and the intensity of the magnetic field inside the electromagnetic damper 30, thereby generating different damping forces and realizing the function of the adjustable damping active shock absorber 100.

[0050] Therefore, the electromagnetic damper 30 in the shock absorber 100 can prevent axial movement of the shock absorber 100, thereby maintaining a constant vehicle height and reducing vehicle vibration. Moreover, when the electromagnetic damper 30 is energized, the damping strength can be controlled by adjusting the magnitude of the internal current and the strength of the magnetic field, thereby generating different damping forces and realizing the function of an adjustable active shock absorber 100.

[0051] According to some embodiments of the present invention, with reference to Figures 1-2 As shown, the shock absorber 100 further includes a drive mechanism 10 and an actuator 20, the actuator 20 being connected to the drive mechanism 10. The drive mechanism 10 selectively drives the actuator 20 to move. One of the drive mechanism 10 and the actuator 20 is adapted to be connected to the vehicle body end, and the other of the drive mechanism 10 and the actuator 20 is adapted to be connected to the wheel end. An electromagnetic damper 30 is disposed between the drive mechanism 10 and the actuator 20. When the electromagnetic damper 30 is energized, it inhibits the movement of the actuator 20 in its axial direction.

[0052] The vibration damper 100 mainly consists of a drive mechanism 10, an actuator 20, and an electromagnetic damper 30. The actuator 20 is connected to the drive mechanism 10, and the drive mechanism 10 can provide driving force to the actuator 20, thereby enabling the drive mechanism 10 to drive the actuator 20 to move.

[0053] One of the drive mechanism 10 and the actuator 20 is adapted to be connected to the vehicle body end, and the other of the drive mechanism 10 and the actuator 20 is adapted to be connected to the wheel end, that is, when the drive mechanism 10 is connected to the vehicle body end, the actuator 20 is correspondingly connected to the wheel end.

[0054] Furthermore, under road surface excitation, the wheel will vibrate during travel. Since the actuator 20 is connected to the wheel end, the actuator 20 will also vibrate. To prevent the actuator 20 from moving, an electromagnetic damper 30 is placed between the drive mechanism 10 and the actuator 20. The electromagnetic damper 30 uses electromagnetic principles to achieve a damping effect on the actuator 20. That is, when a conductor moves in a magnetic field, an induced electromotive force is generated inside the conductor according to Faraday's law of electromagnetic induction. The current generated by the induced electromotive force is subjected to the Lorentz force in the magnetic field. The Lorentz force exerts a reverse resistance on the conductor, thereby achieving a damping effect.

[0055] Similarly, when the electromagnetic damper 30 is energized, it can generate resistance to suppress the movement of the actuator 20, that is, generate a force opposite to the direction of movement of the actuator 20, which can prevent the actuator 20 from axially moving, thereby maintaining the vehicle height and reducing vehicle vibration.

[0056] Furthermore, the electromagnetic damper 30 is connected in series with the drive mechanism 10, that is, the electromagnetic damper 30 and the drive mechanism 10 are coaxial. The coaxial arrangement can ensure the precise alignment between the drive mechanism 10 and the electromagnetic damper 30, which can reduce vibration and imbalance caused by eccentricity and asymmetry, thereby improving the stability and accuracy of the system.

[0057] Moreover, the electromagnetic damper 30 is a rigid body and only functions when energized, so even if it is connected in series, it will not affect the response time of active control.

[0058] Furthermore, the electromagnetic damper 30 is a rigid body and only functions when energized, so connecting the electromagnetic damper 30 in series with the drive mechanism 10 will not affect the response time of the active control.

[0059] According to some embodiments of the present invention, such as Figure 2 As shown, the electromagnetic damper 30 includes a primary component 31 and a secondary component 32. One of the primary component 31 and the secondary component 32 is disposed in the drive mechanism 10, and the other of the primary component 31 and the secondary component 32 is disposed in the actuator 20. The secondary component 32 can move with the actuator 20 relative to the primary component 31. When the electromagnetic damper 30 is energized, the primary component 31 and the secondary component 32 generate resistance through the magnetic field.

[0060] The primary component 31 is magnetic and is disposed in the drive mechanism 10. The primary component 31 can serve as a stator component, which allows a magnetic field to be generated at the position of the drive mechanism 10.

[0061] The secondary component 32 can generate magnetism when energized. The secondary component 32 can serve as a rotor 112 component. When the wheel is about to vibrate under road surface excitation, the drive mechanism 10 is energized to drive the actuator 20. When the electromagnetic damper 30 is energized, the primary component 31 and the secondary component 32 generate resistance through the magnetic field. The actuator 20 can move under the drive of the drive mechanism 10. The secondary component 32 is disposed on the actuator 20, so that the secondary component 32 can move with the actuator 20 relative to the primary component 31. Since the primary component 31 and the secondary component 32 can generate resistance in the opposite direction to the movement of the actuator 20 through the magnetic field, the axial movement of the actuator 20 can be suppressed.

[0062] Furthermore, the height of the primary component 31 in the vertical direction is greater than that of the secondary component 32 in the vertical direction. In this way, the secondary component 32 can avoid exceeding the magnetic field range generated by the primary component 31 during the movement of the actuator 20, and can also avoid reducing the magnetic field strength and affecting the movement of the actuator 20.

[0063] Furthermore, the positions of the primary component 31 and the secondary component 32 can be interchanged. That is, the secondary component 32 can be set in the drive mechanism 10, and the primary component 31 can be set in the actuator 20. In this way, the primary component 31 and the secondary component 32 can also generate electromagnetic force through the magnetic field to suppress the axial movement of the actuator 20, which has good adaptability.

[0064] According to some embodiments of the present invention, such as Figure 2 and Figure 7 As shown, the primary component 31 includes a plurality of magnetic elements 40, which are stacked along the moving direction of the actuator 20. The secondary component 32 includes an electromagnetic element 96, which is sleeved on the actuator 20. When the electromagnetic element 96 is energized, the primary component 31 and the secondary component 32 generate electromagnetic force through the magnetic field.

[0065] It is understandable that when the primary component 31 is composed of multiple magnetic elements 40, the secondary component 32 is correspondingly composed of electromagnetic elements 96. Alternatively, when the primary component 31 is composed of electromagnetic elements 96, the secondary component 32 is correspondingly composed of multiple magnetic elements 40.

[0066] When the secondary component 32 is composed of an electromagnetic component 96, when the electromagnetic component 96 is energized, the actuator 20 will be subjected to the Lorentz force under the action of the magnetic field. The Lorentz force is an electromagnetic force that is opposite to the direction of movement of the actuator 20, thereby preventing the actuator 20 from moving axially.

[0067] According to some embodiments of the present invention, such as Figure 2 As shown, the electromagnetic component 96 includes an iron core 50 and an electromagnetic coil 51. The iron core 50 is sleeved on the actuator 20, and the electromagnetic coil 51 is disposed on the iron core 50. When the electromagnetic coil 51 is energized, the primary component 31 and the secondary component 32 generate electromagnetic force through the magnetic field.

[0068] Specifically, when the primary component 31 is composed of multiple magnetic elements 40, the multiple magnetic elements 40 are stacked along the moving direction of the actuator 20, so that a magnetic field can be generated in the moving direction of the actuator 20.

[0069] When the secondary component 32 is composed of an iron core 50 and an electromagnetic coil 51, the electromagnetic coil 51 is wound on the iron core 50. When the electromagnetic coil 51 is energized, the actuator 20 will be subjected to the Lorentz force under the action of the magnetic field. The Lorentz force is the axial electromagnetic force, which can prevent the actuator 20 from moving axially.

[0070] Furthermore, by changing the magnitude of the current passing through the electromagnetic coil 51, the magnitude of the axial electromagnetic force on the actuator 20 can be adjusted, thereby generating different damping forces and adjusting the different forces acting on the wheel end.

[0071] According to some embodiments of the present invention, such as Figure 7 As shown, the magnetic component 40 includes a radially magnetized magnetic component 41 and an axially magnetized magnetic component 42, which are stacked in an alternating manner.

[0072] Among them, the multiple radially magnetized magnetic components 41 and the multiple axially magnetized magnetic components 42 are all magnetic. The multiple radially magnetized magnetic components 41 can generate a magnetic field in the radial direction, and the multiple axially magnetized magnetic components 42 can generate a magnetic field in the axial direction.

[0073] Multiple radially magnetized magnetic elements 41 and multiple axially magnetized magnetic elements 42 are stacked in an alternating manner, which can make the magnetic field in the radial direction stronger and the magnetic field in the axial direction more uniform, thereby reducing the difference in local magnetic field strength.

[0074] According to some embodiments of the present invention, such as Figure 10 As shown, the magnetic components 40 are arranged in a Hellbeck array manner.

[0075] The Halbach array can enhance the magnetic field on the inner wall of the magnetic component 40 while weakening it on the outer periphery. It can also effectively concentrate the magnetic field, significantly enhancing the magnetic field strength on the inner wall of the magnetic component 40. Because the magnetic field on the outer periphery of the magnetic component 40 is weakened, leakage of the magnetic field on the outer periphery of the magnetic component 40 can be reduced, and interference to the surrounding environment and other equipment can be decreased.

[0076] According to some embodiments of the present invention, the magnetic component 40 is a ring magnet.

[0077] Among them, magnets typically have a high magnetic energy product, which allows them to maintain stable magnetism over long periods of time, without requiring an external power supply and resulting in a long service life. Furthermore, due to their large magnetic field, magnets can provide significant magnetic force in a small volume and weight, making them suitable for space-constrained applications.

[0078] Furthermore, the annular magnet can generate a relatively uniform annular magnetic field. By adjusting the position and orientation of the annular magnet, the direction of the magnetic field can be controlled, thereby facilitating the generation of resistance in the axial direction of the actuator 20.

[0079] According to some embodiments of the present invention, such as Figure 10 As shown, the iron core 50 includes: a plurality of iron core units 501, which are stacked along the moving direction of the actuator 20, and a wire groove 502 is formed between two adjacent iron core units 501, and an electromagnetic coil 51 is wound in the wire groove 502.

[0080] Multiple iron core units 501 are sleeved on the outer periphery of the actuator 20. The multiple iron core units 501 are stacked along the moving direction of the actuator 20. When the electromagnetic coil 51 is energized, the multiple iron cores 50 can generate electromagnetic force along the moving direction of the actuator 20, thereby adjusting the axial movement of the actuator 20.

[0081] Furthermore, the design of the slot 502 ensures that the electromagnetic coil 51 is tightly wound between the iron core 50, optimizing the magnetic field distribution and enhancing the electromagnetic induction effect. The electromagnetic coil 51 generates a magnetic field by passing an energizer through it, and factors such as the number of turns of the coil and the current intensity of the coil affect the strength of the generated magnetic field.

[0082] Furthermore, due to the presence of the iron core 50, the magnetic field will be concentrated within the iron core 50, enhancing the magnetic flux. The design between two adjacent iron core units 501 helps to form a closed magnetic circuit, improving the overall efficiency of the system.

[0083] According to some embodiments of the present invention, such as Figures 8-11 As shown, the iron core unit 501 includes a yoke 5011 and a toothed portion 5012. The toothed portion 5012 is disposed on the outer periphery of the yoke 5011. In the moving direction of the actuator 20, the yoke 5011 has a protrusion 50111 that protrudes from the toothed portion 5012. The protrusion 50111 constitutes at least a portion of the bottom of the groove 502.

[0084] The iron core unit 501 is mainly composed of a yoke 5011 and a toothed part 5012. The toothed part 5012 is arranged along the outer periphery of the yoke 5011. The toothed part 5012 and the yoke 5011 play the role of conducting the magnetic circuit. Together with the magnetic circuit of the magnetic component 40 (ring magnet), the toothed part 5012 and the yoke 5011 form a complete loop, thereby providing a complete magnetic field to the actuator 20.

[0085] Furthermore, the protrusion 50111 forms at least a portion of the bottom of the wire groove 502. In this way, the protrusion 50111, as the bottom of the wire groove 502, can facilitate the positioning and installation of the electromagnetic coil 51 and also prevent the electromagnetic coil 51 from moving.

[0086] According to some embodiments of the present invention, such as Figure 8 As shown, the secondary component 32 includes: an electromagnetic component 96, a yoke 5011 having a through hole 50112, an actuator 20 passing through the through hole 50112, and the actuator 20 and the through hole 50112 being interference-fitted.

[0087] The secondary component 32 includes an electromagnetic element 96. That is, when the primary component 31 is a toroidal magnet, the secondary component 32 consists of an iron core 50 and an electromagnetic coil 51. Since the iron core 50 contains a yoke 5011 and a toothed portion 5012, and the yoke 5011 has a through hole 50112, it facilitates the insertion of the actuator 20. The actuator 20 and the through hole 50112 are interference-fitted, making the actuator 20 and the iron core 50 a single unit. When the electromagnetic coil 51 is energized, the iron core 50 experiences an axial force, which in turn provides an axial force to the actuator 20.

[0088] According to some embodiments of the present invention, such as Figure 10 As shown, the core unit 501 includes: multiple magnetic sheets and metal powder. The multiple magnetic sheets are arranged in a radial array along the circumferential direction of the actuator 20, and a gap is formed between two adjacent magnetic sheets. The metal powder fills the gap.

[0089] In this design, the core unit 501 consists of multiple magnetic sheets arranged radially along the circumference of the actuator 20. This arrangement results in a more uniform magnetic field along the circumference of the actuator 20, reducing irregular fluctuations in the magnetic field and thus improving the stability and accuracy of the damper 100. Compared to a single large magnetic component (such as a magnet), the array of multiple small magnetic sheets increases the number of eddy current loops within each sheet, but reduces the current intensity of each loop, thereby reducing the overall eddy current effect and lowering energy loss.

[0090] Furthermore, the magnetic sheet is a T-shaped silicon steel sheet, and the gap between two adjacent magnetic sheets is filled with metal powder. The gap is formed by powder metallurgy pressing. Such a radiation array can effectively reduce in-plane eddy currents and reduce losses, thereby improving the working efficiency of the electromagnetic damper 30.

[0091] According to some embodiments of the present invention, such as Figure 6 and Figure 12 As shown, the damper 100 also includes a limiting member 60, which is disposed on the actuator 20. The limiting member 60 is located at least on the side of the secondary component 32 away from the drive mechanism 10, thereby limiting the position of the secondary component 32 relative to the actuator 20 in the direction of movement of the actuator 20.

[0092] The limiting member 60 is located on the side of the secondary component 32 away from the drive mechanism 10. The upper end face of the limiting member 60 is in close contact with the lower end face of the iron core 50 in the secondary component 32, thereby limiting the position of the secondary component 32 relative to the actuator 20 in the moving direction of the actuator 20.

[0093] According to some embodiments of the present invention, the actuator 20 is provided with a limiting groove 21 at least on the side away from the drive mechanism 10, and the limiting member 60 is partially engaged in the limiting groove 21, and / or the limiting member 60 is constructed as a retaining ring.

[0094] The limiting groove 21 provides installation space for the limiting component 60, which is a retaining ring with an inner diameter slightly smaller than that of the iron core 50. The retaining ring has a small hole. Before installation, a tool is used to pass through the hole to open the retaining ring, expanding its inner diameter. When the upper end of the retaining ring is in close contact with the lower end of the iron core 50, the hole is released, and the inner diameter of the retaining ring returns to slightly smaller than that of the iron core 50, thus locking one end of the iron core 50. This restricts the degree of freedom of the secondary component 32 in the direction of movement of the actuator 20.

[0095] According to some embodiments of the present invention, such as Figure 4 and Figure 6 As shown, the electromagnetic damper 30 also includes: a housing 70, a primary component 31 and a secondary component 32 located inside the housing 70, the primary component 31 being installed on the inner wall of the housing 70, the actuator 20 passing through the housing 70, and the housing 70 being disposed on the drive mechanism 10.

[0096] The primary component 31 and the secondary component 32 are located inside the housing 70. The housing 70 not only protects the primary component 31 and the secondary component 32, but also facilitates the installation of the primary component 31.

[0097] Specifically, the electromagnetic damper 30 comprises a housing 70, a primary component 31, a secondary component 32, a limiting member 60, and a first end cap 92. The primary component 31, i.e., the annular magnet, is tightly attached to the inner wall of the housing 70 and fixed with adhesive. The iron core 50 is coaxially arranged with the annular magnet. The limiting member 60, i.e., the retaining ring, is used to restrict the axial movement of the iron core 50. The first end cap 92 is fixed to the housing 70 by bolts, and a sliding bearing 14 is provided in the inner hole of the first end cap 92.

[0098] Furthermore, openings are provided at both the upper and lower ends of the housing 70, which facilitates the actuator 20 to pass through the housing 70 and facilitates the actuator 20 to cooperate with the secondary components 32 (iron core 50 and electromagnetic coil 51) inside the housing 70, thereby providing electromagnetic force to the actuator 20.

[0099] According to some embodiments of the present invention, such as Figure 2 As shown, the drive mechanism 10 includes a motor 11 and a transmission mechanism 12. The transmission mechanism 12 is connected to the motor 11 and the actuator 20 respectively, so that the rotational motion of the motor 11 can be converted into the movement of the actuator 20.

[0100] The drive mechanism 10 mainly consists of a motor 11 and a transmission mechanism 12. The transmission mechanism 12 is located between the motor 11 and the actuator 20. The transmission mechanism 12 can be designed as an integral part of the actuator 20, or it can be connected to the actuator 20 through a coupling. In this way, the motor 11 can drive the transmission mechanism 12 to transmit power to the actuator 20. For example, the transmission mechanism 12 can be a ball screw, a gear and rack, or a cylindrical cam 121 and a cam follower 122. It can be selected according to the actual situation, so as to convert the rotational motion of the motor 11 into the movement of the actuator 20.

[0101] Furthermore, a resolver sensor 94 and a cooling water pipe 95 can also be installed on the motor 11. The resolver sensor 94 can detect the position of the rotor 112 of the motor 11 in real time and provide a high-precision position feedback signal. The resolver sensor 94 can provide information on the rotational speed of the motor 11, helping the control system to adjust the rotational speed of the motor 11 in real time to ensure its stable operation.

[0102] Furthermore, the cooling water pipe 95 is designed to carry away the heat generated by the motor 11 during operation by circulating coolant, effectively reducing the temperature rise of the motor 11 and preventing the motor 11 from overheating.

[0103] According to specific embodiments of the present invention, such as Figure 2 As shown, the transmission mechanism 12 includes a cylindrical cam 121 and a cam follower 122. The cylindrical cam 121 is connected to the motor 11. The cylindrical cam 121 forms a curved groove 1211. The actuator 20 is provided with a cam follower 122. The cam follower 122 is movably disposed in the curved groove 1211. When the motor 11 drives the cylindrical cam 121 to rotate, the cam follower 122 converts its movement in the curved groove 1211 into the movement of the actuator 20.

[0104] Among them, a cam follower 122 is provided at the end of the actuator 20 near the motor 11. The actuator 20 with the cam follower 122 is connected and fixed to the lower fork arm 91 at the wheel through the electromagnetic damper 30, so that the actuator 20 can adjust the vehicle height by the lower fork arm 91.

[0105] Specifically, the motor 11 is connected to the cylindrical cam 121 via a shaft. The rotation of the motor 11 causes the cylindrical cam 121 to rotate. The cylindrical cam 121 is designed with different outer contours, namely the curved groove 1211. When the cylindrical cam 121 rotates, the outer contour of the cylindrical cam 121 contacts the cam follower 122. The cam follower 122 moves under the influence of the curved groove 1211 of the cylindrical cam 121, thereby realizing the linear motion of the cam follower 122. Since the cam follower 122 is connected and cooperates with the actuator 20 to form a whole, the actuator 20 can achieve linear motion, thus the motion of the cam follower 122 in the curved groove 1211 can be converted into the movement of the actuator 20.

[0106] Furthermore, the cylindrical cam 121 allows for bidirectional active control, unlike the unidirectional control achieved by traditional cams combined with flat plates or roller followers.

[0107] According to some embodiments of the present invention, such as Figure 2 As shown, there are multiple cam followers 122, which are spaced apart on the outer periphery of the actuator 20, and all of the multiple cam followers 122 are located in the curved groove 1211.

[0108] Multiple cam followers 122 are symmetrically spaced on the outer periphery of the actuator 20, which makes the force on the actuator 20 more uniform and thus makes the movement of the actuator 20 more stable.

[0109] Furthermore, multiple cam followers 122 are all disposed on the curved groove 1211. When the cylindrical cam 121 rotates, the curved groove 1211 of the cylindrical cam 121 can drive multiple cam followers 122 to move simultaneously. This can more accurately control the position and movement of the actuator 20, and also reduce vibration and impact during the movement process, thereby improving the stability and working accuracy of the actuator 20.

[0110] Moreover, the combined action of multiple cam followers 122 can disperse the force and share the contact stress with the cylindrical cam 121, thereby reducing the pressure on a single follower, which can improve the load capacity and reduce wear, thus extending the service life.

[0111] Furthermore, multiple cam followers 122 contact the curved groove 1211. This multi-point contact can better adapt to complex motion trajectories, which is especially important for applications that require rapid start-up, stopping, or direction change. It can provide faster acceleration and deceleration rates while maintaining good controllability.

[0112] According to specific embodiments of the present invention, such as Figure 2As shown, the motor 11 includes a stator 111 and a rotor 112. The rotor 112 is disposed inside the stator 111 and is fixedly connected to a cylindrical cam 121. A curved groove 1211 is formed on the inner circumference of the cylindrical cam 121.

[0113] The motor 11 mainly consists of a stator 111 and a rotor 112. A cavity is formed within the rotor 112 to facilitate the installation of the cylindrical cam 121. The outer periphery of the cylindrical cam 121, i.e., its housing 70, contacts and engages with the rotor 112. When the rotor 112 rotates, it drives the outer periphery of the cylindrical cam 121 to rotate. This causes the cylindrical cam 121 to rotate around its central axis. However, because rolling bearings 14 at both the upper and lower ends of the cylindrical cam 121 provide axial restraint, the cylindrical cam 121 cannot move axially.

[0114] The rotation of the cylindrical cam 121 inevitably drives the curved groove 1211 to rotate synchronously. Due to the characteristics of the curved groove 1211, the normal of the contact surface between the cylindrical cam 121 and the cam follower 122 clamped in the curved groove 1211 is not along the axial, radial, or circumferential direction, but rather at an angle of 25° to 35° with the horizontal plane, i.e., the pressure angle. The existence of the pressure angle means that the force exerted by the cylindrical cam 121 on the cam follower 122 can be decomposed into two mutually perpendicular components: an axial force and a circumferential force.

[0115] Specifically, the circumferential force drives the cam follower 122 to rotate in the direction of the cylindrical cam 121 in the curved groove 1211. However, since the cam follower 122 is fixed on the actuator 20, and the actuator 20 is fastened to the lower fork arm 91 by bolts, the lower fork arm 91 connected to the wheel end will not rotate. Therefore, the actuator 20 cannot rotate, and thus the cam follower 122 cannot rotate either.

[0116] Axial force drives the cam follower 122 to move axially. Since the cam follower 122 is fixed to the end of the actuator 20 near the motor 11, its axial movement causes the actuator 20 to move axially as well. The actuator 20 is fixedly connected to the lower fork arm 91 via the electromagnetic damper 30. Thus, the axial movement of the actuator 20 is transmitted to the wheel end through the lower fork arm 91, thereby adjusting the vehicle height. This allows the vehicle height to be adjusted by controlling the rotation of the motor 11, achieving active vibration damping.

[0117] According to some embodiments of the present invention, such as Figure 2As shown, the drive mechanism 10 also includes a housing 13 and a bearing 14. The stator 111, rotor 112 and cylindrical cam 121 are located inside the housing 13. The stator 111 is mounted on the inner wall of the housing 13. The bearing 14 is mounted inside the housing 70 and is used to support the cylindrical cam 121.

[0118] The stator 111 is mounted on the inner wall of the housing 13, which facilitates its fixed installation. The bearing 14 is installed inside the housing 70. The bearing 14 can reduce the friction of the cylindrical cam 121 rotation, thereby reducing energy loss and improving efficiency. It can also ensure that the shaft rotation of the cylindrical cam 121 is more stable and accurate.

[0119] According to some embodiments of the present invention, such as Figure 2 As shown, the drive mechanism 10 also includes a guide rod 15, which is mounted on the housing 13 and is guided and engaged with the actuator 20.

[0120] The guide rod 15 is located inside the housing 13. The actuator 20 has a guide hole on the side near the guide rod 15. The guide rod 15 passes through the guide hole of the actuator 20 for guidance and cooperation, which can ensure that the actuator 20 moves accurately along its axis, thereby avoiding deviation or shaking, and improving the accuracy of the movement of the actuator 20.

[0121] Moreover, the guide rod 15 reduces the chance of the actuator 20 coming into direct contact with other support surfaces, thereby reducing wear and extending its service life.

[0122] According to some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the damper 100 also includes an elastic damping mechanism 80, one end of which is connected to the drive mechanism 10, and the other end of which is adapted to move synchronously with the actuator 20.

[0123] The elastic damping mechanism 80 is located between the drive mechanism 10 and the actuator 20, and can further assist in vibration damping. The elastic damping mechanism 80 can absorb and buffer the vibration and impact between the drive mechanism 10 and the actuator 20, thereby further reducing vibration. The elastic damping mechanism 80 can also eliminate unnecessary displacement and vibration, enabling the actuator 20 to respond to control commands more quickly and accurately, thereby improving the dynamic performance of the damper 100.

[0124] According to specific embodiments of the present invention, such as Figure 1As shown, the elastic damping mechanism 80 includes: a first mounting base 81, a second mounting base 82, and a spring 83. The first mounting base 81 is connected to the drive mechanism 10, and the first mounting base 81 constitutes one end of the elastic damping mechanism 80. The second mounting base 82 constitutes the other end of the elastic damping mechanism 80. The spring 83 is connected between the first mounting base 81 and the second mounting base 82, and the spring 83 is sleeved on the electromagnetic damper 30 and the actuator 20.

[0125] Specifically, spring 83 is disposed between the first mounting base 81 and the second mounting base 82, which can provide axial limiting for spring 83. Spring 83 is sleeved on electromagnetic damper 30 and actuator 20, and spring 83 can assist electromagnetic damper 30, thereby further absorbing and buffering vibration of actuator 20.

[0126] According to some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the first mounting base 81 forms a first mounting platform 811, the electromagnetic damper 30 forms a second mounting platform 33, the drive mechanism 10 forms a third mounting platform 16, and the vibration damper 100 further includes a fastener 90. The first mounting platform 811, the second mounting platform 33 and the third mounting platform 16 are stacked along the moving direction of the actuator 20, and the fastener 90 passes through the first mounting platform 811, the second mounting platform 33 and the third mounting platform 16.

[0127] The electromagnetic damper 30 is fixed to one end of the drive mechanism 10 near the lower fork arm 91. The lower fork arm 91 is fixedly connected to the second mounting base 82. The electromagnetic damper 30 and the cylindrical cam 121 are coaxial. The lower end of the cylindrical cam 121 is sealed by the second end cover 93. The first mounting base 81 is fixed on the second end cover 93. Fasteners 90 are sequentially passed through the first mounting platform 811, the second mounting platform 33, the second end cover 93, and the third mounting platform 16, so that the connection between the first mounting base 81, the electromagnetic damper 30, and the drive mechanism 10 can be more stable and secure.

[0128] According to a second aspect of the present invention, a suspension assembly includes: the shock absorber 100 of the above embodiment.

[0129] A vehicle according to a third aspect of the present invention includes: the shock absorber 100 of the above embodiments or the suspension assembly of the above embodiments.

[0130] The shock absorber 100 is equipped with an electromagnetic damper 30 instead of a hydraulic damper, which avoids the problem of slow response of hydraulic dampers. Moreover, the damping of a simple hydraulic damper is not adjustable, but it can be adjusted by adding a solenoid valve. The electromagnetic damper 30 does not require an additional structure. It can achieve adjustable damping simply by passing different currents.

[0131] Furthermore, during active vibration reduction, it is necessary to minimize external resistance. Ideally, the connected damper should be inactive, meaning there should be no damping force. If a hydraulic damper is used, it cannot restrict movement and will inevitably generate damping force, affecting active control. However, this invention uses an electromagnetic damper 30. As long as the electromagnetic damper 30 is not energized, the damping force it generates is negligible. During passive vibration reduction, the motor 11 is not energized, resulting in only a negligible amount of electromagnetic damping, and the cylindrical cam 121 has only a negligible amount of frictional damping. Therefore, an additional damper is needed to provide damping force.

[0132] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0133] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0134] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vibration damper (100), characterized in that, include: When the electromagnetic damper (30) is energized, the electromagnetic damper (30) generates resistance that inhibits the movement of the vibration damper (100) in its axial direction.

2. The vibration damper (100) according to claim 1, characterized in that, Also includes: An actuator (20) is provided with an electromagnetic damper (30) that generates resistance to inhibit the movement of the actuator (20) in its axial direction.

3. The vibration damper (100) according to claim 2, characterized in that, Also includes: A drive mechanism (10) is connected to the actuator (20), the drive mechanism (10) selectively drives the actuator (20) to move, one of the drive mechanism (10) and the actuator (20) is adapted to be connected to the vehicle body end and the other is adapted to be connected to the wheel end, and the electromagnetic damper (30) is disposed between the drive mechanism (10) and the actuator (20).

4. The vibration damper (100) according to claim 3, characterized in that, The electromagnetic damper (30) includes: Primary component (31); Secondary component (32), one of the primary component (31) and the secondary component (32) is disposed in the drive mechanism (10) and the other is disposed in the actuator (20), the secondary component (32) is movable with the actuator (20) relative to the primary component (31); When the electromagnetic damper (30) is energized, the primary component (31) and the secondary component (32) generate the resistance through the magnetic field.

5. The vibration damper (100) according to claim 4, characterized in that, The primary component (31) includes a magnetic element (40) which is stacked along the moving direction of the actuator (20).

6. The vibration damper (100) according to claim 4, characterized in that, The secondary component (32) includes an electromagnetic component, which is sleeved on the actuator (20). When the electromagnetic component is energized, the primary component (31) and the secondary component (32) generate electromagnetic force through a magnetic field.

7. The vibration damper (100) according to claim 5, characterized in that, The magnetic component (40) includes: Radial magnetized magnetic component (41); The axially magnetized magnetic element (42) is arranged in an alternating stacked manner, and the radially magnetized magnetic element (41) and the axially magnetized magnetic element (42) are arranged in an alternating stacked manner.

8. The vibration damper (100) according to claim 5, characterized in that, The magnetic components (40) are arranged in a Heilbeck array manner.

9. The vibration damper (100) according to claim 5, characterized in that, The magnetic component (40) is a ring magnet.

10. The vibration damper (100) according to claim 6, characterized in that, The electromagnetic component includes: Iron core (50), the iron core (50) is sleeved on the actuator (20); An electromagnetic coil (51) is disposed on the iron core (50).

11. The vibration damper (100) according to claim 10, characterized in that, When the electromagnetic coil (51) is energized, the primary component (31) and the secondary component (32) generate the electromagnetic force through the magnetic field.

12. The vibration damper (100) according to claim 10, characterized in that, The iron core (50) includes: Multiple iron core units (501) are stacked along the moving direction of the actuator (20), and a wire groove (502) is formed between two adjacent iron core units (501), and the electromagnetic coil (51) is wound in the wire groove (502).

13. The vibration damper (100) according to claim 12, characterized in that, The core unit (501) includes: A yoke (5011) is fitted onto the actuator (20). The tooth (5012) is disposed on the outer periphery of the yoke (5011).

14. The vibration damper (100) according to claim 13, characterized in that, In the direction of movement of the actuator (20), the yoke (5011) is formed with a protrusion (50111) that protrudes from the tooth (5012), and the protrusion (50111) constitutes at least a portion of the bottom of the groove (502).

15. The vibration damper (100) according to claim 14, characterized in that, The secondary component (32) includes the electromagnetic component, the yoke (5011) has a through hole (50112), and the actuator (20) passes through the through hole (50112) and is interference-fitted with the through hole (50112).

16. The vibration damper (100) according to claim 12, characterized in that, The core unit (501) includes: Multiple magnetic sheets are arranged in a radial array along the circumferential direction of the actuator (20).

17. The vibration damper (100) according to claim 16, characterized in that, The core unit (501) also includes: Metal powder, with a gap formed between two adjacent magnetic sheets, the metal powder filling the gap.

18. The vibration damper (100) according to claim 4, characterized in that, The electromagnetic damper (30) also includes: A limiting member (60) is disposed on the actuator (20), the limiting member (60) being at least located on the side of the secondary component (32) away from the drive mechanism (10) to limit the position of the secondary component (32) relative to the actuator (20) in the direction of movement of the actuator (20).

19. The vibration damper (100) according to claim 18, characterized in that, The actuator (20) has a limiting groove (21) on at least one side away from the drive mechanism (10), and the limiting member (60) is partially engaged in the limiting groove (21).

20. The vibration damper (100) according to claim 18, characterized in that, The limiting member (60) is constructed as a retaining ring.

21. The vibration damper (100) according to claim 4, characterized in that, The electromagnetic damper (30) also includes: The housing (70) contains the primary component (31) and the secondary component (32), with the primary component (31) mounted on the inner wall of the housing (70).

22. The vibration damper (100) according to claim 21, characterized in that, The actuator (20) passes through the housing (70), and the housing (70) is disposed on the drive mechanism (10).

23. The vibration damper (100) according to any one of claims 1-22, characterized in that, The drive mechanism (10) includes: Motor (11); The transmission mechanism (12) is connected to the motor (11) and the actuator (20) respectively, so as to convert the rotational motion of the motor (11) into the movement of the actuator (20).

24. The vibration damper (100) according to claim 23, characterized in that, The transmission mechanism (12) includes: A cylindrical cam (121) is connected to the motor (11), and the cylindrical cam (121) has a curved groove (1211).

25. The vibration damper (100) according to claim 24, characterized in that, The actuator (20) is provided with a cam follower (122), which is movably disposed on the curved groove (1211). When the motor (11) drives the cylindrical cam (121) to rotate, the cam follower (122) converts its movement on the curved groove (1211) into the movement of the actuator (20).

26. The vibration damper (100) according to claim 24, characterized in that, The motor (11) includes: Stator (111); The rotor (112) is disposed inside the stator (111) and is fixedly connected to the cylindrical cam (121). The inner circumference of the cylindrical cam (121) is formed with the curved groove (1211).

27. The vibration damper (100) according to claim 26, characterized in that, The drive mechanism (10) further includes: The housing (13), the stator (111), the rotor (112) and the cylindrical cam (121) are located inside the housing (13), and the stator (111) is mounted on the inner wall of the housing (13); The bearing (14) is installed inside the housing (70) and is used to support the cylindrical cam (121).

28. The vibration damper (100) according to claim 27, characterized in that, The drive mechanism (10) further includes: Guide rod (15), the guide rod (15) is installed on the housing (13), and the guide rod (15) is guided and cooperated with the actuator (20).

29. The vibration damper (100) according to claim 1, characterized in that, Also includes: An elastic damping mechanism (80) is provided, one end of which is connected to the drive mechanism (10) and the other end of which is adapted to move synchronously with the actuator (20).

30. The vibration damper (100) according to claim 29, characterized in that, The elastic damping mechanism (80) includes: Spring (83), which is sleeved on the electromagnetic damper (30) and the actuator (20).

31. The vibration damper (100) according to claim 29, characterized in that, Also includes: A first mounting base (81) is connected to the drive mechanism (10) and forms one end of the elastic damping mechanism (80); and / or The second mounting base (82) forms the other end of the elastic damping mechanism (80), and one end of the spring (83) abuts against the first mounting base (81) and the other end abuts against the second mounting base (82).

32. A suspension assembly, characterized in that, include: The vibration damper (100) according to any one of claims 1-31.

33. A vehicle, characterized in that, include: The shock absorber (100) according to any one of claims 1-31 or the suspension assembly according to claim 32.

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