CN117656732A - Suspension assembly and vehicle with same - Google Patents

Abstract

The invention discloses a suspension assembly and a vehicle with the same, wherein the suspension assembly comprises a linear motor and a hydraulic damper, the linear motor comprises a stator assembly and a rotor assembly which are coupled and matched, so that the rotor assembly can reciprocate, the hydraulic damper comprises a first cylinder body, a second cylinder body and a piston rod, a fluid flow channel is defined between the first cylinder body and the second cylinder body, the first cylinder body is arranged on one of the stator assembly and the rotor assembly, the piston rod is arranged on the other one of the stator assembly and the rotor assembly, the piston rod extends into the first cylinder body to divide the first cylinder body into a first chamber and a second chamber, the first chamber is communicated with the fluid flow channel through a first channel, and the second chamber is communicated with the fluid flow channel through a second channel. The suspension assembly provided by the embodiment of the invention can utilize the hydraulic shock absorber to radiate heat of the rotor assembly while utilizing the hydraulic shock absorber to provide partial damping force.

Description

Suspension assembly and vehicle with same

Technical Field

The invention relates to the technical field of vehicles, in particular to a suspension assembly and a vehicle with the suspension assembly.

Background

The suspension assembly is an important component of the vehicle and comprises all force transmission devices connected between the vehicle body and wheels of the vehicle, and is mainly used for transmitting force and moment acting between the wheels and the vehicle body, reducing impact load transferred to the vehicle body by a road surface and isolating noise input by the road surface and tires.

However, the existing suspension assembly can only provide the required damping force through electromagnetic acting force between the primary and the secondary, so that the linear motor in the suspension assembly has higher energy consumption and is not beneficial to improving the smoothness of the whole vehicle.

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 suspension assembly which can reduce the energy consumption of the linear motor and improve the smoothness of the vehicle, and solves the technical problems of high energy consumption of the linear motor and poor smoothness of the whole vehicle in the prior art.

The invention also aims to provide a vehicle with the suspension assembly.

A suspension assembly according to an embodiment of the present invention includes: the linear motor comprises a stator assembly and a rotor assembly, and the stator assembly and the rotor assembly are coupled and matched so that the rotor assembly can reciprocate; the hydraulic shock absorber comprises a first barrel, a second barrel and a piston rod, a fluid flow channel is defined between the first barrel and the second barrel, the first barrel is mounted to one of the stator assembly and the rotor assembly, the piston rod is mounted to the other of the stator assembly and the rotor assembly, the piston rod stretches into the first barrel to divide the first barrel into a first chamber and a second chamber, the first chamber is communicated with the fluid flow channel through a first channel, and the second chamber is communicated with the fluid flow channel through a second channel.

According to the suspension assembly provided by the embodiment of the invention, the hydraulic shock absorber is arranged and matched with the linear motor, so that partial damping force can be provided by the hydraulic shock absorber in the reciprocating movement process of the rotor assembly, the energy consumption of the linear motor is reduced, the suspension assembly can effectively buffer the impact transmitted by a road surface, and the smoothness of a vehicle is improved; meanwhile, the fluid flow channel in the hydraulic damper is arranged between the first cylinder and the second cylinder, so that when the hydraulic damper is utilized to provide damping force, fluid in the hydraulic damper can flow between the inner part and the outer part of the first cylinder, the contact time of the fluid and air is prolonged, the heat dissipation of the mover assembly by the fluid is facilitated, and the working performance of the linear motor is ensured.

In some embodiments, the hydraulic shock absorber is filled with oil, and the oil is a cooling liquid.

In some embodiments, a mounting cavity is provided within the mover assembly, and the hydraulic damper is located within the mounting cavity.

In some embodiments, the piston rod is secured to an inner wall of the mounting cavity and the first barrel is mounted to the stator assembly.

In some embodiments, a piston is provided at one end of the piston rod, the piston extending into the first barrel to divide the first barrel into a first chamber and a second chamber.

In some embodiments, an inner wall of the mounting cavity defines the second barrel.

In some embodiments, the second cylinder is in nesting engagement with the first cylinder, and the fluid flow path is formed between an outer wall of the first cylinder and an inner wall of the second cylinder.

In some embodiments, the stator assembly is provided with a guide that protrudes into the mounting cavity to guide the direction of movement of the mover assembly.

In some embodiments, the first barrel is secured to the guide.

In some embodiments, one end of the guide member is connected with a connecting portion, one end of the first cylinder facing the guide member is provided with an opening, and the connecting portion extends into the first chamber through the opening and is fixedly connected with the first cylinder.

In some embodiments, the fluid flow passage is in heat exchange relationship with an exterior space of the hydraulic damper via a heat dissipating channel.

In some embodiments, the outer peripheral wall of the guide and the inner wall of the mounting cavity define the heat dissipation channel therebetween.

In some embodiments, the suspension assembly further includes a bushing that is externally sleeved to the guide member and is positioned within the mounting cavity, the bushing being provided with a relief passage that communicates with the heat dissipation passage.

In some embodiments, at least a portion of the first channel is formed at the connection; and/or at least part of the first channel is formed on the peripheral wall of the first cylinder; and/or at least part of the first channel is formed between the connecting portion and the peripheral wall of the first cylinder.

In some embodiments, at least part of the first channel is formed at the connecting portion, and the guide member is disposed at a distance from the opening toward the end surface of the first cylinder to form a connecting channel, and the connecting channel communicates the first channel with the fluid flow channel.

In some embodiments, at least a portion of the second channel is formed in a peripheral wall of the first cylinder.

In some embodiments, at least one of the first and second passages is provided with a regulating valve for regulating the flow thereof.

In some embodiments, the number of the sub-assemblies is plural, the number of the stator assemblies surrounds a moving cavity, the number of the sub-assemblies is reciprocally movably positioned in the moving cavity, and the number of the stator assemblies and the number of the sub-assemblies are arranged in a one-to-one correspondence.

A vehicle according to an embodiment of the present invention includes the suspension assembly described above.

According to the vehicle provided by the embodiment of the invention, the suspension assembly is adopted to improve the smoothness of the vehicle, so that the driving experience is improved.

Additional aspects and advantages of the invention will become apparent in the following 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 illustration of a suspension assembly according to some embodiments of the present invention.

FIG. 2 is a cross-sectional view of a portion of the structure of a suspension assembly according to some embodiments of the present invention.

Fig. 3 is a partial enlarged view of a part of the structure of fig. 2.

Fig. 4 is a cross-sectional view of a linear motor according to some embodiments of the invention.

Reference numerals:

1000. a suspension assembly;

100. a linear motor;

110. a stator assembly; 111. a guide member; 1111. a connection part; 1112. a connecting rod;

120. a mover assembly; 121. a mounting cavity; 1211. a second bottom wall;

131. a first mounting member; 132. a second mounting member;

141. a first support; 142. a second support; 143. an elastic member;

150. A buffer block;

200. a hydraulic damper;

210. a first cylinder;

211. a first chamber; 2111. a connection channel;

212. a second chamber; 213. a third bottom wall;

220. a second cylinder; 221. a first bottom wall;

230. a piston rod; 231. a piston;

240. a fluid flow path;

260. a regulating valve; 261. a first regulating valve; 262. a second regulating valve;

271. a first channel; 272. a second channel;

300. a heat dissipation channel;

400. a bushing; 410. and (5) avoiding the channel.

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.

In the description of the present 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", "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 being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

The suspension assembly 1000 according to the embodiment of the present invention is described below with reference to the drawings of the specification.

As shown in conjunction with fig. 1 and 2, a suspension assembly 1000 according to an embodiment of the present invention includes: linear motor 100 and hydraulic damper 200.

As shown in fig. 1 and 2, the linear motor 100 includes a stator assembly 110 and a mover assembly 120, and the stator assembly 110 and the mover assembly 120 are coupled and matched to make the mover assembly 120 reciprocally movable. It will be understood that the linear motor 100 is used to drive the sub-assembly 120 to move, so that the suspension assembly 1000 can effectively buffer the impact transmitted by the road surface, and improve the smoothness of the vehicle.

In some examples, the stator assembly 110 is adapted to be coupled to a vehicle body and the rotor assembly 120 is adapted to be coupled to a vehicle wheel. The mover assembly 120 moves relative to the stator assembly 110 during the up and down movement of the wheels relative to the vehicle body to cushion the impact transmitted from the road surface.

Optionally, a certain number of coil windings are disposed in the stator assembly 110, permanent magnets with different magnetic poles are distributed on the mover assembly 120, when alternating current is supplied to the coil windings, a magnetic field is generated in an air gap between the stator assembly 110 and the mover assembly 120, and three-phase alternating current varies continuously with time, so that the air gap field of the linear motor 100 can be equivalently considered to be parallel moving along the moving direction of the linear motor 100 to generate a traveling wave magnetic field, and the excitation magnetic field of the permanent magnets interacts with the traveling wave magnetic field generated by the three-phase windings to generate an electromagnetic thrust.

In a specific example, when the vehicle passes through a hollow or a rough road, the linear motor 100 changes the moving direction and the force of the mover assembly 120 according to the current direction and the current magnitude of the jumping direction of the suspension assembly 1000, so that the direction of the force is opposite to the jumping direction of the suspension assembly 1000, and the vibration is actively damped to enable the vehicle to recover to be stable as soon as possible, thereby achieving the purpose of damping, and further improving the smoothness of the whole vehicle.

As shown in connection with fig. 1, 2 and 3, the hydraulic shock absorber 200 includes a first cylinder 210, a second cylinder 220, and a piston rod 230, a fluid flow channel 240 is defined between the first cylinder 210 and the second cylinder 220, the first cylinder 210 is mounted to one of the stator assembly 110 and the mover assembly 120, the piston rod 230 is mounted to the other of the stator assembly 110 and the mover assembly 120, the piston rod 230 extends into the first cylinder 210 to divide the interior of the first cylinder 210 into a first chamber 211 and a second chamber 212, the first chamber 211 communicates with the fluid flow channel 240 through a first passage 271, and the second chamber 212 communicates with the fluid flow channel 240 through a second passage 272.

It should be noted that, in the present application, one of the first cylinder 210 and the piston rod 230 is disposed in the stator assembly 110, the other is disposed in the mover assembly 120, and the piston rod 230 extends into the first cylinder 210, so that in the process of reciprocating movement of the mover assembly 120, the piston rod 230 can reciprocate in the first cylinder 210, and in the process of moving the piston rod 230, the piston rod 230 can be limited to move by using the fluid located in the first chamber 211 and the second chamber 212, so as to achieve the effect of providing the damping force by using the hydraulic shock absorber 200.

It should be noted that, in the present application, the first chamber 211 and the fluid flow channel 240 in the first cylinder 210 are communicated through the first channel 271, and the second chamber 212 and the fluid flow channel 240 are communicated through the second channel 272, that is, the first chamber 211 and the second chamber 212 in the present application are respectively directly communicated with the fluid flow channel 240 through different channels, so that the piston rod 230 can be ensured to effectively move during the reciprocating movement process, so as to avoid the fluid in the first chamber 211 or the second chamber 212 from obstructing the movement of the piston rod 230, and meanwhile, the piston rod 230 can be restricted by the fluid during the reciprocating movement process, so as to limit the movement speed of the piston rod 230, thereby ensuring that the hydraulic damper 200 can be utilized to provide a damping force during the reciprocating movement process of the mover assembly 120, so as to ensure the damping effect of the suspension assembly 1000.

In specific examples, as shown in fig. 3, a first channel 271 is provided at one end of the first cylinder 210 and adjacent to the first chamber 211, so that communication between the first chamber 211 and the fluid flow channel 240 is achieved by the first channel 271; accordingly, a second passage 272 is provided at the other end of the first cylinder 210 adjacent to the second chamber 212, so that communication between the second chamber 212 and the fluid flow passage 240 is achieved by the second passage 272.

It should be noted that, because the first chamber 211 and the second chamber 212 may be filled with fluid (such as hydraulic oil), when the suspension is in a compressed state or a down-jump state, the linear motor 100 drives the sub-assembly 120 to move, at this time, the piston rod 230 in the first cylinder 210 may move synchronously along with the sub-assembly 120, because the first chamber 211 and the second chamber 212 are filled with fluid, and as the piston rod 230 moves, the first chamber 211 or the second chamber 212 decreases in volume and increases in pressure, and at this time, the first chamber 211 or the second chamber 212 generates resistance to inhibit the piston rod 230 from continuing to move, so as to form a compression damping force, but because the first chamber 211 is communicated with the fluid flow channel 240 through the first channel 271 and the second chamber 212 is communicated with the fluid flow channel 240 through the second channel 272, in the process that the first chamber 211 or the second chamber 212 inhibits the piston rod 230 from continuing to move, and accordingly, the fluid in the second chamber 212 flows to the fluid flow through the first channel 240 and the second channel 272, so as to enable the piston rod 200 to continue to move, thereby effectively reach the damping effect of the hydraulic damper assembly by using the road surface to provide the damping force.

Meanwhile, a fluid flow channel 240 is defined between the first cylinder 210 and the second cylinder 220, so that when fluid flows along the fluid flow channel 240, a flow path of the fluid can be increased, and thus, the heat exchange time between the fluid and the external air can be increased, and the heat generated by the mover assembly 120 during operation can be discharged by using the fluid flow, so that the purpose of radiating the heat of the mover assembly 120 is achieved, and the operation performance of the suspension assembly 1000 is ensured.

As can be seen from the above structure, in the suspension assembly 1000 according to the embodiment of the present invention, the linear motor 100 and the hydraulic damper 200 are integrated, the hydraulic damper 200 is configured to cooperate with the linear motor 100, and the first chamber 211 and the second chamber 212 in the hydraulic damper 200 are configured to be respectively and directly communicated with the fluid flow channel 240 through different channels, so that in the process of driving the mover assembly 120 to move by using the linear motor 100, on one hand, a damping force can be provided by an electromagnetic acting force between the mover assembly 120 and the stator assembly 110, and on the other hand, a damping force can be provided by the hydraulic damper 200, so as to improve the moving stability of the mover assembly 120 and reduce the energy consumption of the linear motor 100, and meanwhile, the suspension assembly 1000 can effectively buffer the impact transmitted by the road surface, and improve the smoothness of the vehicle.

A fluid flow passage 240 is defined between the first cylinder 210 and the second cylinder 220 to allow fluid to circulate between the inside and outside of the first cylinder 210 so as to radiate heat of the mover assembly 120 by using the flowing fluid, thereby ensuring the operation performance of the suspension assembly 1000.

It should be noted that, because the suspension assembly 1000 of the present application integrates the linear motor 100 and the hydraulic shock absorber 200, during the operation of the suspension assembly 1000, the hydraulic shock absorber 200 may cooperate with the linear motor 100 to operate simultaneously, or the hydraulic shock absorber 200 may operate separately, wherein during the operation of the hydraulic shock absorber 200 and the linear motor 100 simultaneously, a part of damping force may be provided by the hydraulic shock absorber 200, so as to significantly reduce the energy consumption of the linear motor 100; when hydraulic shock absorber 200 is operating alone, hydraulic shock absorber 200 alone may provide a damping force to achieve active shock absorption.

That is, the suspension assembly 1000 of the present application can reduce the power consumption of the linear motor 100 while ensuring that the suspension assembly 1000 can effectively and smoothly cushion the impact transmitted from the road surface by integrating the linear motor 100 and the hydraulic shock absorber 200.

In addition, because the suspension assembly 1000 of the application is integrated with the hydraulic shock absorber 200, when the circuit of the linear motor 100 fails and electromagnetic acting force cannot be provided, the hydraulic shock absorber 200 can be used for continuously providing damping force, so that the smoothness and the running safety of a vehicle are ensured, and the use experience of a user is improved.

Through the above arrangement, in a specific example, in the process of using the suspension assembly 1000, when the vehicle runs on an uneven road surface and encounters a bump, the linear motor 100 is used for driving the mover assembly 120 to move in a direction away from the wheel, that is, the mover assembly 120 is used for driving the wheel to move in a direction away from the ground, so that the wheel can effectively drive over the bump, and meanwhile, in the process of driving the wheel by the mover assembly 120 to move in a direction away from the ground, the mover assembly 120 can drive the piston rod 230 to move in the first cylinder 210, at this time, the fluid in the first cylinder 210 limits the moving speed of the piston rod 230 so as to achieve the purpose of providing a certain damping force by using the hydraulic damper 200, so that the mover assembly 120 is prevented from driving the wheel to move upwards at a higher speed, and further, the vehicle is prevented from jumping upwards in a large extent in the running process, the vehicle comfort is improved, and the driving experience is ensured; accordingly, when the vehicle runs on the rugged road surface and encounters the pit, the linear motor 100 is used for driving the rotor assembly 120 to move towards the direction close to the wheel, at this moment, the rotor assembly 120 can drive the wheel to move towards the direction close to the ground, so that the wheel can effectively contact the ground, meanwhile, in the process that the rotor assembly 120 drives the wheel to move towards the direction close to the ground, the rotor assembly 120 can also drive the piston rod 230 to move in the first cylinder 210, at this moment, the fluid in the first cylinder 210 limits the moving speed of the piston rod 230, so as to realize providing damping force, the rotor assembly 120 is prevented from driving the wheel to move downwards at a higher speed, and further, the vehicle is prevented from jumping downwards to a large extent in the running process, so that the smoothness of the vehicle is further improved, namely, the vehicle comfort is improved, and the driving experience is ensured.

That is, in the present application, by integrating the linear motor 100 and the hydraulic damper 200, during the operation of the suspension assembly 1000, the linear motor 100 can adjust the magnitude and direction of the current according to the jumping rule of the suspension assembly 1000, so as to realize active damping, and the hydraulic damper 200 can provide damping force according to the moving direction of the mover assembly 120, so as to meet the damping requirements and riding comfort of the vehicle in different road segments, and meanwhile, the hydraulic damper 200 can also be utilized to dissipate heat of the linear motor 100.

Meanwhile, the linear motor 100 has the advantages of high response speed, high precision, good reliability and the like, and the response speed and the vibration reduction effect of the suspension assembly 1000 can be improved by arranging the linear motor 100.

It can be appreciated that, compared to the prior art, the suspension assembly 1000 of the present application integrates the linear motor 100 and the hydraulic damper 200, and the first chamber 211 and the second chamber 212 in the hydraulic damper 200 are respectively configured to be directly communicated with the fluid flow channel 240 through different channels, and define the fluid flow channel 240 between the first cylinder 210 and the second cylinder 220, so that the hydraulic damper 200 can be utilized to provide damping force for the mover assembly 120 in the process of reciprocating movement, thus, while ensuring that the suspension assembly 1000 can meet the damping requirement, the damping effect of the suspension assembly 1000 can be improved, thereby improving the smoothness of the whole vehicle, and simultaneously, the hydraulic damper 200 can be utilized to dissipate heat of the linear motor 100, so as to ensure the working performance of the linear motor 100.

In the description of the present invention, a feature defining "first", "second" may explicitly or implicitly include one or more of such feature for distinguishing between the described features, no sequential or light weight fraction.

In other examples, logic control may also be added to suspension assembly 1000 to enable operation with only hydraulic shock absorber 200 in a low shock condition, with linear motor 100 not operating; at medium or large impact, the linear motor 100 is re-interposed to maximize energy saving.

In some examples, as shown in fig. 3, a piston 231 is provided on an end of the piston rod 230 that extends into the first cylinder 210, the piston 231 extending into the first cylinder 210 to divide the first cylinder 210 into a first chamber 211 and a second chamber 212. That is, the piston 231 serves to divide the inside of the first cylinder 210 into the first chamber 211 and the second chamber 212 and to make the first chamber 211 and the second chamber 212 independent from each other, preventing the fluid in the first chamber 211 and the second chamber 212 from flowing through each other by the piston 231, thereby enabling the hydraulic shock absorber 200 to effectively provide a damping force.

Optionally, the piston 231 is an oil seal, and the oil seal is connected to the piston rod 230 and extends into the first cylinder 210, so as to separate the interior of the first cylinder 210 into the first chamber 211 and the second chamber 212, and ensure the relative tightness of the first chamber 211 and the second chamber 212.

Optionally, hydraulic damper 200 is filled with oil, which is a cooling fluid. It may be understood that the fluid filled in the first chamber 211 and the second chamber 212 is a cooling fluid, and the fluid filled in the first chamber 211 and the second chamber 212 flows between the first chamber 211, the second chamber 212 and the fluid flow channel 240 in the process of providing the damping force by the hydraulic damper 200, and the fluid flow channel 240 is formed between the first cylinder 210 and the second cylinder 220, so that the flowing cooling fluid can be used to dissipate heat of the mover assembly 120 in the process of providing the damping force by the hydraulic damper 200, so as to achieve the purpose of dissipating heat of the mover assembly 120, prolong the service life of the suspension assembly 1000 and improve the use safety of the suspension assembly 1000.

In summary, the oil of the hydraulic damper 200 integrated inside the linear motor 100 is the cooling liquid, and the piston rod 230 drives the cooling liquid to flow, so that the hydraulic damper 200 can take away the heat generated by the rotor assembly 120 during the working process to perform local heat dissipation while providing damping force by using the cooling liquid, and the heat dissipation performance is ensured.

Optionally, as shown in fig. 1 and 2, the suspension assembly 1000 includes a first mounting member 131 and a second mounting member 132, where the stator assembly 110 is connected to the vehicle body through the first mounting member 131, so as to achieve a fixed connection between the stator assembly 110 and the vehicle body, and the mover assembly 120 is connected to the vehicle wheel through the second mounting member 132, so as to achieve a fixed connection between the mover assembly 120 and the vehicle wheel, so that the suspension assembly 1000 is mounted between the vehicle wheel and the vehicle body, and in the running process of the vehicle, the force and moment acting between the vehicle wheel and the vehicle body can be transferred by using the cooperation of the stator assembly 110 and the mover assembly 120, so that the impact load transferred to the vehicle body by the road surface is reduced, and meanwhile, noise input by the road surface and the tire can be isolated, so as to ensure the comfort of the vehicle.

In addition, the suspension assembly 1000 can also be used to support the weight of the vehicle body through the arrangement described above.

It should be noted that, the first mounting member 131 and the second mounting member 132 may be mounting plates, and the mounting plates are mounted between the stator assembly 110 and the vehicle body and between the mover assembly 120 and the vehicle wheel, so as to mount the suspension assembly 1000 between the vehicle wheel and the vehicle body, reduce the mounting difficulty of the suspension assembly 1000, and improve the mounting efficiency.

Optionally, as shown in fig. 1, the suspension assembly 1000 further includes an elastic member 143, where the elastic member 143 is sleeved on the outer periphery of the linear motor 100, so that the elastic member 143 is used to realize shock absorption, and meanwhile, the elastic member 143 can also play a role in a certain damping, so as to improve the comfort of the vehicle.

Specifically, as shown in fig. 1, a first supporting member 141 is disposed on the outer periphery of one end of the linear motor 100, which is close to the mover assembly 120, the first supporting member 141 is fixedly connected with the housing of the linear motor 100, one end of the mover assembly 120, which is far away from the stator assembly 110, is fixedly connected with a second supporting member 142, an elastic member 143 is disposed between the first supporting member 141 and the second supporting member 142, and two ends of the elastic member 143 are respectively in stop fit with the first supporting member 141 and the second supporting member 142, so that the elastic member 143 can be compressed or stretched in the moving process of the mover assembly 120, thereby providing a partial damping force by using the elastic member 143 and bearing a partial vibration impact, and improving the comfort of the vehicle.

Optionally, as shown in fig. 2, a buffer block 150 is disposed in the stator assembly 110, and the mover assembly 120 can be stopped against the buffer block 150 after moving towards the stator assembly 110 and moving to a limit position, so as to prevent the mover assembly 120 from striking the stator assembly 110 and damaging the stator assembly 110, prolong the service lives of the stator assembly 110 and the mover assembly 120, further prolong the service life of the linear motor 100, and reduce the use cost.

In some examples, the buffer block 150 is a rubber block, a spring, a silicone block, or the like.

In some embodiments of the present invention, as shown in fig. 2 and 3, a mounting cavity 121 is provided in the mover assembly 120, and a hydraulic damper 200 is located in the mounting cavity 121. It will be understood that, a space for installing the hydraulic damper 200 is provided in the mover assembly 120, and the hydraulic damper 200 is disposed in the installation cavity 121 to implement the installation of the hydraulic damper 200 in the mover assembly 120, so that the mover assembly 120 can effectively drive the piston rod 230 to move in the first cylinder 210 during the moving process, thereby achieving the purpose of providing damping force by using the hydraulic damper 200.

In addition, the hydraulic damper 200 is arranged in the mover assembly 120, so that the hydraulic damper 200 can be prevented from occupying the space outside the mover assembly 120, the volume of the suspension assembly 1000 is prevented from being increased due to the arrangement of the hydraulic damper 200, and the installation difficulty of the suspension assembly 1000 is reduced.

Alternatively, as shown in fig. 2 and 3, the piston rod 230 is fixed to the inner wall of the mounting cavity 121, and the first cylinder 210 is mounted to the stator assembly 110. That is, when the hydraulic damper 200 is disposed in the mounting cavity 121, the piston rod 230 is fixed to the inner wall of the mounting cavity 121 and the first cylinder 210 is mounted to the stator assembly 110, so as to mount the first cylinder 210 to the stator assembly 110 and mount the piston rod 230 to the mover assembly 120, thereby ensuring that the piston rod 230 can be effectively driven to move in the first cylinder 210 during the movement of the mover assembly 120, so as to compress the fluid in the first cylinder 210, and achieving the purpose of providing damping force by using the hydraulic damper 200.

Alternatively, as shown in fig. 2 and 3, the inner wall of the mounting cavity 121 defines a second cylinder 220. That is, when the hydraulic damper 200 is disposed in the mounting cavity 121, the inner wall of the mounting cavity 121 is directly utilized to define the second cylinder 220, so that there is no need to separately provide a cylinder to form the second cylinder 220, and the volume of the suspension assembly 1000 is reduced and the mounting difficulty of the suspension assembly 1000 is reduced while the molding difficulty and the mounting difficulty of the second cylinder 220 are reduced.

Of course, in other examples, a single cylinder may be provided, and the cylinder is provided in the mounting cavity 121 and fixedly connected to the inner wall of the mounting cavity 121, so as to form the second cylinder 220.

In some examples, as shown in connection with fig. 2 and 3, the second cylinder 220 has a first bottom wall 221, the first bottom wall 221 being spaced apart from a second bottom wall 1211 of the mounting cavity 121. Because the second bottom wall 1211 of the mounting cavity 121 moves relatively to the first bottom wall 221 of the second cylinder 220 during the moving process of the mover assembly 120, the first bottom wall 221 and the second bottom wall 1211 are arranged at intervals, so that the first bottom wall 221 is prevented from obstructing the movement of the second bottom wall 1211, that is, the mover assembly 120 is prevented from being obstructed, and the working performance of the suspension assembly 1000 is ensured.

Alternatively, as shown in fig. 3, one end of the first bottom wall 221 is in contact engagement with the peripheral wall of the mounting cavity 121, and the other end of the first bottom wall 221 is fixedly connected to the peripheral wall of the first cylinder 210, so that the first bottom wall 221 is supported by the first cylinder 210, so that the first bottom wall 221 is stable in position, and the second cylinder 220 is formed.

Alternatively, as shown in fig. 3, the second cylinder 220 is fitted around the first cylinder 210, and the fluid flow channel 240 is formed between the outer wall of the first cylinder 210 and the inner wall of the second cylinder 220. It may be understood that after the second cylinder 220 is sleeved with the first cylinder 210, a fluid flow channel 240 is defined between the first cylinder 210 and the second cylinder 220, so that fluid can circulate between the first cylinder 210 and the fluid flow channel 240, the purpose of providing damping force by using the hydraulic damper 200 is achieved, the energy consumption of the linear motor 100 is reduced, the smoothness of the suspension assembly 1000 in operation is improved, and the purpose of dissipating heat by using the fluid to the mover assembly 120 is also achieved.

Of course, in other examples, the second cylinder 220 and the first cylinder 210 may be disposed in parallel, such as: the second cylinder 220 is disposed in parallel with the first cylinder 210 in the radial direction of the hydraulic shock absorber 200 (not shown in this example), and the fluid flow channel 240 is formed in the second cylinder 220, which is also advantageous in that fluid can circulate between the inner and outer portions of the first cylinder 210, so that the mover assembly 120 can be cooled by the flowing fluid, thereby ensuring the operation performance of the suspension assembly 1000.

Alternatively, as shown in fig. 2 and 3, the stator assembly 110 is provided with a guide 111, the guide 111 protruding into the mounting cavity 121, the guide 111 guiding the moving direction of the mover assembly 120. The movable element assembly 120 is prevented from shifting in the moving process, so that the movable element assembly 120 can move along the set direction, the moving accuracy of the movable element assembly 120 is guaranteed, wheels can move along the set direction, and the stability of the vehicle in running is guaranteed.

In some examples, the guide 111 is formed as a guide rod fixedly connected to the stator assembly 110 and protruding into the mounting cavity 121 so as to guide the movement of the mover assembly 120 using the guide 111 and reduce the difficulty of forming and mounting the guide 111.

Optionally, as shown in fig. 2 and 3, the suspension assembly 1000 further includes a bushing 400, where the bushing 400 is sleeved on the guide member 111 and is located in the mounting cavity 121, and the bushing 400 and the guide member 111 cooperate to guide the moving direction of the mover assembly 120, so that the mover assembly 120 can move along the extending direction of the guide member 111, that is, the mover assembly 120 can move along the predetermined direction, and accuracy of the movement is ensured.

Alternatively, as shown in fig. 2 and 3, the first cylinder 210 is fixed to the guide 111. To mount the first cylinder 210 to the stator assembly 110, the stator assembly 110 is convenient to support the first cylinder 210, and the position stability of the first cylinder 210 is improved, so that the piston rod 230 can effectively move in the first cylinder 210 in the process of moving the mover assembly 120 relative to the stator assembly 110, so that the fluid in the first cylinder 210 is convenient to provide resistance to the movement of the piston rod 230, and the purpose of providing damping force by the hydraulic shock absorber 200 is achieved.

In addition, the first cylinder 210 is fixed to the guide piece 111 to achieve the installation and matching of the first cylinder 210 and the stator assembly 110, so that the installation difficulty of the first cylinder 210 and the stator assembly 110 can be reduced, and the installation efficiency can be improved.

In some examples, as shown in fig. 3, a connection portion 1111 is connected to one end of the guide 111, and an end of the first cylinder 210 facing the guide 111 has an opening, and the connection portion 1111 protrudes into the first chamber 211 through the opening and is fixedly connected to the first cylinder 210. It will also be appreciated herein that the first cylinder 210 is fixedly coupled to the guide 111 through the coupling portion 1111 so as to support the first cylinder 210 by the guide 111, thereby improving the positional stability of the first cylinder 210 while achieving the mounting of the first cylinder 210 to the stator assembly 110.

It should be noted that, the end of the guide 111 is understood to be the end of the guide 111 extending toward the first cylinder 210, so as to ensure that the connection portion 1111 can effectively extend into the first chamber 211 when the connection portion 1111 is provided on the guide 111.

Optionally, the shape of the connecting portion 1111 is adapted to the shape of the first cylinder 210, so that the connecting portion 1111 can be extended into the first chamber 211, and the contact area between the connecting portion 1111 and the first cylinder 210 can be increased, so as to ensure the connection strength between the connecting portion 1111 and the first cylinder 210, and enable the first cylinder 210 to form a fixed connection with the connecting portion 1111.

The fixing connection may be adhesion, clamping, or the like, and is not particularly limited in this application.

In a specific example, the first cylinder 210 forms a cylinder, the connection portion 1111 forms a cylinder piston, and an outer circumferential wall of the cylinder piston is in stop fit on an inner circumferential wall of the cylinder to ensure a contact area of the connection portion 1111 with the first cylinder 210.

Alternatively, at least part of the first channel 271 is formed at the connection 1111; and/or, at least part of the first channel 271 is formed in the peripheral wall of the first cylinder 210; and/or, at least part of the first channel 271 is formed between the connection 1111 and the circumferential wall of the first cylinder 210. Here, at least part of the first channel 271 is formed at the connection portion 1111; or, at least part of the first channel 271 is formed at the peripheral wall of the first cylinder 210; still alternatively, at least part of the first channel 271 is formed between the connection 1111 and the circumferential wall of the first cylinder 210; still alternatively, at least a portion of the first passage 271 is formed at the connection portion 1111, at least a portion of the first passage 271 is formed at the circumferential wall of the first cylinder 210, and at least a portion of the first passage 271 is formed between the connection portion 1111 and the circumferential wall of the first cylinder 210, so that communication between the first chamber 211 and the fluid flow passage 240 is facilitated by the first passage 271, thereby enabling oil to circulate among the first chamber 211, the second chamber 212, and the fluid flow passage 240.

In some examples, at least a portion of the first channel 271 is formed at the connection 1111. It will be understood that, since the connection portion 1111 is provided in the first chamber 211, the first passage 271 is provided in the connection portion 1111, so that the first passage 271 can be used to communicate with the opposite sides of the connection portion 1111, that is, the first chamber 211 and the fluid flow channel 240 can be used to communicate with each other, so that oil can circulate among the first chamber 211, the second chamber 212 and the fluid flow channel 240.

In some examples, the connection portion 1111 is provided with a through hole penetrating the connection portion 1111 in the axial direction, the through hole forming the first passage 271.

Optionally, the connecting portion 1111 is provided with a plurality of first channels 271, and the plurality of first channels 271 are disposed at intervals along the radial direction of the connecting portion 1111, so as to ensure that the first chamber 211 and the fluid flow channel 240 can effectively communicate.

Alternatively, as shown in fig. 3, at least a portion of the first passage 271 is formed at the connection portion 1111, and the guide 111 is disposed at an end surface facing the first cylinder 210 with an opening to form a connection passage 2111, the connection passage 2111 communicating the first passage 271 with the fluid flow passage 240. That is, when the first passage 271 is formed on the connecting portion 1111, the guide 111 is disposed toward the end surface of the first cylinder 210 with a space therebetween so as to form communication of the first passage 271 with the fluid flow passage 240, that is, so as to realize communication of the first chamber 211 with the fluid flow passage 240.

In a specific example, as shown in fig. 3, one end of the guide 111 is provided with a connection rod 1112, and the connection rod 1112 extends into the first chamber 211 and connects with the connection portion 1111. So as to realize that the connecting portion 1111 is connected to one end of the guide member 111 through the connecting rod 1112, so that the connecting portion 1111 can extend into the first chamber 211, and meanwhile, the connecting portion 1111 can be fixedly connected with the guide member 111, so that the relative position of the connecting portion 1111 and the guide member 111 is stable, and when the connecting portion 1111 is connected with the first cylinder 210, the guide member 111 can be utilized to support the first cylinder 210, and the position stability of the first cylinder 210 is improved.

Alternatively, as shown in fig. 3, the peripheral wall of the connecting rod 1112 is disposed at a distance from the peripheral wall of the first cylinder 210 to communicate the first passage 271 with the connecting passage 2111, thereby achieving communication of the first passage 271 with the fluid flow passage 240, that is, communication of the first chamber 211 with the fluid flow passage 240.

In a specific example, the first cylinder 210 forms a cylindrical barrel, the connecting rod 1112 forms a cylindrical rod, and the outer diameter of the connecting rod 1112 is smaller than the inner diameter of the first cylinder 210, such that the circumferential wall of the connecting rod 1112 is disposed at a distance from the circumferential wall of the first cylinder 210.

Alternatively, the guide 111, the connection rod 1112, and the connection portion 1111 are formed as an integral molded piece. That is, the guide 111, the connection rod 1112 and the connection portion 1111 are manufactured by an integral molding process, so as to reduce molding difficulty of the guide 111, the connection rod 1112 and the connection portion 1111, and ensure connection strength between the guide 111, the connection rod 1112 and the connection portion 1111, so that relative positions of the guide 111, the connection rod 1112 and the connection portion 1111 are stable.

In other examples, at least a portion of the first channel 271 is formed in the peripheral wall of the first barrel 210. That is, not limited to forming at least part of the first passage 271 on the connection portion 1111, at least part of the first passage 271 may also be formed on the peripheral wall of the first cylinder 210, so that communication of the first chamber 211 with the fluid flow passage 240 may also be achieved by the first passage 271.

Specifically, the first passage 271 is formed on the circumferential wall of the first cylinder 210 between the connection 1111 and the piston 231, so that communication between the first chamber 211 and the fluid flow passage 240 is facilitated by the first passage 271.

In other examples, at least a portion of the first channel 271 is formed between the connection 1111 and the peripheral wall of the first cylinder 210. This may also allow for communication between the first chamber 211 and the fluid flow channel 240 using the first channel 271.

Specifically, a communication groove is formed on a side of the connection portion 1111 toward the peripheral wall of the first cylinder 210, the communication groove penetrating the axial direction of the connection portion 1111, the communication groove cooperating with the peripheral wall of the first cylinder 210 to form a first passage 271, and at least part of the first passage 271 is formed between the connection portion 1111 and the peripheral wall of the first cylinder 210.

Alternatively, the first channel 271 has a first portion, a second portion, and a third portion connected to each other, wherein the first portion of the first channel 271 is formed at the connection portion 1111, the second portion of the first channel 271 is formed at the peripheral wall of the first cylinder 210, the third portion of the first channel 271 is formed between the connection portion 1111 and the peripheral wall of the first cylinder 210, the first portion of the first channel 271 and the second portion of the first channel 271 are communicated through the third portion of the first channel 271, and the communication between the first chamber 211 and the fluid flow passage 240 can also be achieved by using the first channel 271.

Specifically, a first portion of the first passage 271 is formed at the connection portion 1111 and extends obliquely with respect to the axial direction of the connection portion 1111 and communicates with the first chamber 211, a second portion of the first passage 271 is formed at the peripheral wall of the first cylinder 210 and communicates with the fluid flow passage 240, and a third portion of the first passage 271 is formed between the connection portion 1111 and the peripheral wall of the first cylinder 210 and communicates with the first portion of the first passage 271 and the second portion of the first passage 271, thereby achieving communication of the first chamber 211 with the fluid flow passage 240.

Alternatively, as shown in fig. 2 and 3, the fluid flow passage 240 exchanges heat with the external space of the hydraulic shock absorber 200 through the heat dissipation passage 300. It can be understood that the heat dissipation channel 300 is disposed in the suspension assembly 1000, and the heat dissipation channel 300 is simultaneously communicated with the fluid flow channel 240 and the external space of the hydraulic damper 200, so that heat in the fluid flow channel 240 can exchange heat with the external space of the hydraulic damper 200 through the heat dissipation channel 300, thereby achieving the purpose of heat dissipation and being beneficial to improving the stability of the whole suspension assembly 1000.

It should be noted that, because the mover assembly 120 generates heat during moving relative to the stator assembly 110, and the hydraulic damper 200 is disposed in the mounting cavity 121 of the mover assembly 120, at this time, part of the heat generated by the mover assembly 120 is transferred to the fluid flow channel 240, that is, to the cooling fluid, and the heat transferred to the fluid flow channel 240 is discharged by the heat dissipation channel 300 through the heat dissipation channel 300 that is simultaneously communicated with the fluid flow channel 240 and the external space of the hydraulic damper 200, so as to achieve the purpose of heat dissipation, and avoid increasing the heat load of the whole system because the heat cannot be well dissipated.

In a specific example, the cooling liquid is suitable for performing local heat dissipation on the mover assembly 120, and then the heat in the cooling liquid is discharged through the heat dissipation channel 300, so that the heat dissipation is performed by matching the cooling liquid and the heat dissipation channel 300, and the heat dissipation effect is ensured.

Alternatively, as shown in fig. 3, a heat dissipation path 300 is defined between the outer circumferential wall of the guide 111 and the inner wall of the installation cavity 121. So that the fluid flow passage 240 is communicated with the external space of the hydraulic shock absorber 200 by the heat dissipation passage 300, thereby facilitating heat dissipation by the heat dissipation passage 300.

In some examples, the outer peripheral wall of the guide 111 and the inner wall of the mounting cavity 121 are spaced apart to define the heat dissipation channel 300, so that the difficulty in forming the heat dissipation channel 300 can be reduced while heat dissipation using the heat dissipation channel 300 is achieved.

Optionally, as shown in fig. 3, the bushing 400 is provided with a relief passage 410, and the relief passage 410 communicates with the heat dissipation passage 300. It will be appreciated that when the suspension assembly 1000 includes the bushing 400, the bushing 400 is provided with the relief passage 410 to avoid the bushing 400 from obstructing the communication between the fluid flow passage 240 and the external space of the hydraulic shock absorber 200, so that the heat in the fluid flow passage 240 can be effectively discharged, thereby achieving the purpose of heat dissipation.

In some embodiments of the present invention, as shown in connection with fig. 1 and 3, at least a portion of the second channel 272 is formed in the peripheral wall of the first cylinder 210. So that the second channel 272 is used to communicate the inner side and the outer side of the first cylinder 210, and the second channel 272 is used to communicate the second chamber 212 with the fluid flow channel 240, so that the oil can circulate among the first chamber 211, the second chamber 212 and the fluid flow channel 240.

In some examples, a through hole is provided in the peripheral wall of the first barrel 210 that radially extends through the first barrel 210, the through hole forming the second channel 272.

Optionally, a plurality of second channels 272 are provided on the peripheral wall of the first cylinder 210, and the plurality of second channels 272 are disposed at intervals along the circumferential direction of the first cylinder 210, so as to ensure that the second chamber 212 and the fluid flow channel 240 can effectively communicate.

In a specific example, as shown in fig. 3, the second channel 272 is disposed proximate to the third bottom wall 213 of the first barrel 210. While ensuring that the second chamber 212 and the fluid flow channel 240 can be communicated by using the second channel 272, the second channel 272 can be further away from the first channel 271, which is beneficial to increasing the path of the fluid flow channel 240, so that when the oil circulates among the first chamber 211, the second chamber 212 and the fluid flow channel 240, the flow time and the flow path of the oil can be increased, and the heat generated in the moving process of the oil diffusion sub-assembly 120 can be conveniently utilized, namely, the heat dissipation of the sub-assembly 120 is realized, the service life of the suspension assembly 1000 is prolonged, and the use safety of the suspension assembly 1000 is improved.

In some embodiments of the present invention, as shown in fig. 3, at least one of the first channel 271 and the second channel 272 is provided with a regulating valve 260 for regulating the flow thereof. Here, the first passage 271 is provided with the regulating valve 260; alternatively, the second passage 272 has a regulator valve 260 disposed therein; still alternatively, the first channel 271 and the second channel 272 are each provided with a regulating valve 260, wherein when the regulating valve 260 is provided in the first channel 271, the regulating valve 260 is configured to regulate the flow of the first channel 271, and when the regulating valve 260 is provided in the second channel 272, the regulating valve 260 is configured to regulate the flow of the second channel 272 such that the flow of fluid through the first channel 271 and/or the second channel 272 is adjustable, thereby facilitating the provision of an adjustable damping force with the hydraulic shock absorber 200.

That is, the hydraulic shock absorber 200 of the present application can provide a variable damping force, which is advantageous for improving the smoothness of the entire vehicle.

In summary, the hydraulic damper 200 with variable damping is integrated inside the linear motor 100, and the linear motor 100 and the hydraulic damper 200 cooperate to widen the damping adjustment margin of the suspension assembly 1000, so that the damping adjustment range with wide enough damping is provided in the ride control process, and the ride control effect of the whole vehicle is obviously improved.

It should be noted that, for convenience of description, the regulating valve 260 provided in the first passage 271 is defined as a first regulating valve 261, and the regulating valve 260 in the second passage 272 is defined as a second regulating valve 262.

Alternatively, both the first regulating valve 261 and the second regulating valve 262 are normally closed solenoid valves. That is, when the coil is de-energized, the first and second regulating valves 261 and 262 are closed; when the coil is energized, the first regulating valve 261 and the second regulating valve 262 are opened. To reduce the difficulty of controlling the first adjusting valve 261 and the second adjusting valve 262, thereby facilitating the adjustment of the fluid flow through the first channel 271 by the first adjusting valve 261 and the fluid flow through the second channel 272 by the second adjusting valve 262, and reducing the difficulty of adjustment.

It should be noted that, by setting the first adjusting valve 261 and the second adjusting valve 262 to be normally closed electromagnetic valves, when the coils of the first adjusting valve 261 and the second adjusting valve 262 are powered off, the linear motor 100 can be locked, so that the height of the vehicle body is adjusted by using the linear motor 100 and the adjusted height of the vehicle body is fixed, the purpose of adjusting the height of the ground clearance of the vehicle is achieved, and the vehicle can effectively travel off the uneven ground.

In a specific example, through the above arrangement, when there is a protrusion on the ground and the height of the protrusion is higher than the normal chassis height of the vehicle, the linear motor 100 may be used to drive the sub-assembly 120 to move in a direction away from the stator assembly 110, so as to increase the distance between the wheel and the vehicle body, that is, increase the chassis height of the vehicle, and after the height is adjusted, the first adjusting valve 261 and the second adjusting valve 262 are powered off, so as to implement locking of the linear motor 100, thereby fixing the height of the vehicle body, ensuring that the vehicle can effectively drive away from the ground where the protrusion exists, and improving the trafficability of the whole vehicle.

Of course, in other examples, the first regulating valve 261 and the second regulating valve 262 may be normally open type solenoid valves, that is, when the coil is de-energized, the first regulating valve 261 and the second regulating valve 262 are opened; when the coil is energized, the first regulating valve 261 and the second regulating valve 262 are closed, and the present application is not particularly limited.

As can be seen from the foregoing, in the linear motor 100 of the present application, in a specific example, when the suspension assembly 1000 is in a compressed state, as shown in fig. 2 and 3, the mover assembly 120 moves upward along the guide member 111, and the piston rod 230 connected with the mover assembly 120 also moves upward, because the first chamber 211 is filled with the cooling liquid, the volume of the first chamber 211 decreases and the pressure increases as the piston rod 230 moves upward, and the first chamber 211 generates resistance to the piston rod 230 to inhibit the piston rod 230 from continuing to move upward, so as to form a compression damping force, but because the first channel 271 in which the first chamber 211 is communicated with the fluid flow channel 240 is provided with the first regulating valve 261, at this time, the controller can be used to control the opening and closing of the first regulating valve 261 and control the opening of the first regulating valve 261, so as to further control the flow rate of the cooling liquid in the first channel 271, so as to change the pressure in the first chamber 211, thereby realizing the function of regulating compression damping.

When the cooling liquid in the first chamber 211 enters the fluid flow channel 240 through the first adjusting valve 261, the cooling liquid in the fluid flow channel 240 enters the second chamber 212 through the second adjusting valve 262 due to the limited volume of the fluid flow channel 240, and the piston rod 230 is complemented to move up the volume of the second chamber 212, so that the second chamber 212 is filled with the cooling liquid.

Accordingly, when the suspension assembly 1000 jumps down, the mover assembly 120 moves down along the guide 111 and drives the piston rod 230 to move down, the pressure of the second chamber 212 is enhanced due to the cooling liquid in the second chamber 212, at this time, the cooling liquid in the second chamber 212 generates resistance to the moving down piston rod 230 to inhibit the downward movement of the mover assembly 120, so as to generate a restoring damping force, but a second regulating valve 262 is disposed in a second channel 272 communicating with the fluid flow channel 240 due to the second chamber 212, at this time, the opening and closing of the second regulating valve 262 and the opening of the second regulating valve 262 are controlled by a controller, so as to control the flow rate of the cooling liquid in the second channel 272, so as to change the pressure in the second chamber 212, thereby realizing the function of adjusting the restoring damping.

It should be noted that, in the process of providing the damping force by using the hydraulic shock absorber 200, the first adjusting valve 261 and the second adjusting valve 262 may be in an open state, so that the cooling liquid in the first chamber 211 may enter the fluid flow channel 240 through the first adjusting valve 261 and the cooling liquid entering the fluid flow channel 240 may enter the second chamber 212 through the second adjusting valve 262, and meanwhile, the cooling liquid in the second chamber 212 may enter the fluid flow channel 240 through the second adjusting valve 262 and the cooling liquid entering the fluid flow channel 240 may enter the first chamber 211 through the first adjusting valve 261, so as to realize the circulation flow of the cooling liquid among the first chamber 211, the fluid flow channel 240 and the second chamber 212, and thus, the cooling liquid may take away the heat generated by the operation of the linear motor 100, and further, the heat generated by the system may be taken away from the interior of the linear motor 100 through the heat dissipation channel 300, so as to increase the heat dissipation capability of the system.

In summary, the suspension assembly 1000 of the present application can use the linear motor 100 and the hydraulic damper 200 to work simultaneously, a part of damping force of the whole suspension assembly 1000 is provided by the hydraulic damper 200, another part is provided by the linear motor 100, so that energy consumption of the linear motor 100 can be obviously reduced, in the design, the oil of the hydraulic damper 200 is cooling liquid, the damping value of the hydraulic damper 200 is regulated by the regulating valve 260, little heat is generated in the working process, meanwhile, the cooling liquid circulates in the first chamber 211, the fluid flow channel 240 and the second chamber 212, and heat generated by the linear motor 100 and the hydraulic damper 200 in the working process can be taken away through the heat dissipation channel 300, so as to ensure the working stability of the system.

In some embodiments of the present invention, as shown in fig. 4, the number of the mover assemblies 120 is plural, the number of the stator assemblies 110 is plural, the plurality of stator assemblies 110 surrounds the moving chamber, the plurality of mover assemblies 120 are reciprocally movably located in the moving chamber, and the plurality of stator assemblies 110 and the plurality of mover assemblies 120 are disposed in one-to-one correspondence. By arranging the plurality of stator assemblies 110 and the plurality of rotor assemblies 120 to cooperate, the interaction of the plurality of stator assemblies 110 and the plurality of rotor assemblies 120 can ensure that the thrust provided in unit volume is far greater than that of the single stator assembly 110 and the single rotor assembly 120, thereby ensuring that the linear motor 100 can output a large driving force and enabling the linear motor 100 to effectively drive the rotor assemblies 120 to move.

In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

Meanwhile, the plurality of stator assemblies 110 can be conveniently utilized to surround the moving chamber, so that when the mover assembly 120 is movably arranged in the moving chamber, the plurality of stator assemblies 110 can be utilized to cooperate to limit the moving direction of the mover assembly 120, so as to achieve the effect of guiding the movement of the mover assembly 120 and avoid the movement of the mover assembly 120. That is, the linear motor 100 of the present application also has a guide structure itself to maximally ensure that the mover assembly 120 can move in a predetermined direction.

In addition, the plurality of stator assemblies 110 and the plurality of mover assemblies 120 cooperate to further enhance the stability of the linear motor 100, so that the linear motor can bear forces in all directions, and the structure of the suspension assembly 1000 is more stable.

As described above, the linear motor 100 of the present application can ensure that the mover assembly 120 can be effectively driven to move along a predetermined path, and can also improve the structural stability of the suspension assembly 1000.

Of course, in other examples, the linear motor 100 is not limited to the above-described structure, and the linear motor 100 may be a cylinder motor, a plate motor, or the like.

A vehicle of an embodiment of the invention is described below.

According to an embodiment of the present invention, a vehicle includes: suspension assembly 1000.

The suspension assembly 1000 is the suspension assembly 1000 described above, and the specific structure of the suspension assembly 1000 is not described herein.

As can be seen from the above structure, the vehicle according to the embodiment of the present invention, by adopting the suspension assembly 1000, can effectively improve the smoothness of the vehicle, thereby improving the riding experience.

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, for example, fixedly connected, detachably connected or integrally connected; either mechanically or electrically. 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.

Three mover assemblies 120 and three stator assemblies 110 are shown in fig. 4 for illustrative purposes, but it will be apparent to one of ordinary skill in the art after reading the above disclosure that the disclosure applies to four or more mover assemblies 120 and stator assemblies 110, and is within the scope of the present invention.

Other configurations of suspension assemblies 1000 and vehicles having the same according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, reference to the term "embodiment," "example," 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 (19)

1. A suspension assembly comprising:

the linear motor comprises a stator assembly and a rotor assembly, and the stator assembly and the rotor assembly are coupled and matched so that the rotor assembly can reciprocate;

the hydraulic shock absorber comprises a first barrel, a second barrel and a piston rod, a fluid flow channel is defined between the first barrel and the second barrel, the first barrel is mounted to one of the stator assembly and the rotor assembly, the piston rod is mounted to the other of the stator assembly and the rotor assembly, the piston rod stretches into the first barrel to divide the first barrel into a first chamber and a second chamber, the first chamber is communicated with the fluid flow channel through a first channel, and the second chamber is communicated with the fluid flow channel through a second channel.

2. The suspension assembly of claim 1 wherein said hydraulic damper is filled with an oil, said oil being a cooling fluid.

3. The suspension assembly of claim 1, wherein a mounting cavity is provided in the mover assembly, the hydraulic damper being located in the mounting cavity.

4. The suspension assembly of claim 3 wherein the piston rod is secured to an inner wall of the mounting cavity and the first barrel is mounted to the stator assembly.

5. The suspension assembly of claim 4 wherein a piston is provided at one end of the piston rod, the piston extending into the first barrel to divide the first barrel into a first chamber and a second chamber.

6. The suspension assembly of claim 4 wherein an inner wall of the mounting cavity defines the second barrel.

7. The suspension assembly of claim 1 wherein the second cylinder is in telescoping engagement with the first cylinder, the fluid flow passage being formed between an outer wall of the first cylinder and an inner wall of the second cylinder.

8. The suspension assembly of claim 4, wherein the stator assembly is provided with a guide member that extends into the mounting cavity to guide the direction of movement of the sub-assembly.

9. The suspension assembly of claim 8 wherein the first barrel is secured to the guide.

10. The suspension assembly of claim 9, wherein one end of the guide member is connected to a connecting portion, and one end of the first cylinder facing the guide member has an opening, and the connecting portion extends into the first chamber through the opening and is fixedly connected to the first cylinder.

11. The suspension assembly of claim 8 wherein the fluid flow passage is in heat exchange relationship with an exterior space of the hydraulic shock absorber via a heat sink channel.

12. The suspension assembly of claim 11 wherein the outer peripheral wall of the guide and the inner wall of the mounting cavity define the heat dissipation channel therebetween.

13. The suspension assembly of claim 12 further comprising a bushing that is externally sleeved to the guide member and is positioned within the mounting cavity, the bushing being provided with a relief passage that communicates with the heat dissipation passage.

14. The suspension assembly of claim 10 wherein at least a portion of the first channel is formed in the connection; and/or at least part of the first channel is formed on the peripheral wall of the first cylinder; and/or at least part of the first channel is formed between the connecting portion and the peripheral wall of the first cylinder.

15. The suspension assembly of claim 10 wherein at least a portion of the first channel is formed in the connecting portion, the guide member being spaced from the opening toward the end face of the first barrel to form a connecting channel that communicates the first channel with the fluid flow passage.

16. The suspension assembly of claim 10 wherein at least a portion of the second channel is formed in a peripheral wall of the first cylinder.

17. The suspension assembly of any one of claims 1-16, wherein at least one of the first and second passages is provided with a regulator valve for regulating the flow thereof.

18. The suspension assembly according to any one of claims 1-16, wherein the plurality of mover assemblies are provided, the plurality of stator assemblies surround a moving chamber, the plurality of mover assemblies are reciprocally movably positioned in the moving chamber, and the plurality of stator assemblies and the plurality of mover assemblies are provided in one-to-one correspondence.

19. A vehicle comprising a suspension assembly according to any one of claims 1 to 18.