Vibration reduction assembly for vehicle and vehicle

Abstract

The utility model relates to the field of vehicles, and discloses a vibration reduction assembly for a vehicle and the vehicle. The vibration reduction assembly comprises a shell, a piston rod and a driving device, wherein a piston cavity is formed in the shell; the piston rod is movably arranged in the piston cavity; the driving device is contained in the piston cavity and is in linkage with the piston rod so as to be suitable for driving the piston rod. According to the vibration reduction assembly, the movable piston rod is arranged in the shell and used for adjusting the height of the vehicle, and the driving device is arranged in the shell, so that the compactness of the structure of the vibration reduction assembly is improved, and the size of the vibration reduction assembly is reduced.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a vibration reduction component for a vehicle and the vehicle. Background Art

[0002] A hydraulic suspension is usually installed on a vehicle as a vibration reduction device. When the vehicle is parked, the engine is turned off, and the oil in the hydraulic system cools down and changes its volume, causing the vehicle body to lower. Therefore, the vibration reduction device needs to maintain the height of the vehicle when the vehicle is parked. In the related art, such a vibration reduction device usually requires a drive device to be installed outside the vibration reduction device, which has a complex overall structure, a large volume, and is not conducive to layout. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, one purpose of the utility model is to provide a vibration reduction assembly. According to the vibration reduction assembly of the utility model, a movable piston rod is arranged in a housing for adjusting the vehicle height, and a driving device is arranged in the housing to improve the compactness of the vibration reduction assembly structure and reduce the volume of the vibration reduction assembly.

[0004] The utility model also provides a vehicle comprising the vibration reduction assembly.

[0005] According to the utility model, the vibration reduction assembly includes a shell, a piston rod and a driving device, wherein a piston cavity is formed in the shell; the piston rod is movably arranged in the piston cavity; the driving device is accommodated in the piston cavity and linked with the piston rod to be suitable for driving the piston rod.

[0006] According to the utility model, the vibration reduction assembly can accurately control the movement of the piston rod in the piston cavity through the cooperation of the driving device and the piston rod, realizing the function of the vibration reduction assembly actively adjusting the lifting of the chassis to control the height of the vehicle body. The problem of the vehicle sinking when docking can be avoided. At the same time, the vibration reduction assembly sets the driving device in the piston cavity, that is, the driving device is located inside the shell, which can improve the compactness of the vibration reduction assembly structure, improve the space utilization rate of the piston cavity, reduce the volume of the vibration reduction assembly, and facilitate the assembly and layout of the vibration reduction assembly.

[0007] According to an embodiment of the utility model, the driving device is provided with a driving part rotating around the moving direction of the piston rod, and the driving part cooperates with the piston rod to drive the piston rod to move linearly by rotation.

[0008] According to one embodiment of the utility model, at least part of the outer circumference of the piston rod is provided with a first thread, the driving part is provided with a second thread suitable for engaging with the first thread, and the driving device is suitable for cooperating with the piston rod thread to drive the piston rod to move in a straight line when the driving part rotates.

[0009] According to an embodiment of the utility model, the driving device includes a motor housing and a rotor, the motor housing is accommodated in the piston chamber; the rotor is rotatably disposed in the motor housing, the rotor surrounds the outer circumference of the piston rod and the rotor is connected to the driving part.

[0010] According to an embodiment of the utility model, the driving part is configured as a screw nut, and a plurality of balls are arranged between the screw nut and the outer peripheral wall of the piston rod.

[0011] According to an embodiment of the utility model, the vibration damping assembly also includes a vibration damping shell, which is connected to the motor housing, and a vibration damping cavity is formed in the vibration damping shell, and one end of the piston rod extends into the vibration damping cavity and is movable in the vibration damping cavity.

[0012] According to an embodiment of the utility model, the vibration reduction assembly further includes a vibration reduction piston, which is disposed in the vibration reduction cavity and sleeved on at least a portion of the periphery of one end of the piston rod.

[0013] According to an embodiment of the utility model, the vibration reduction assembly further includes a first buffer member, which is disposed at the bottom of the vibration reduction chamber and directly faces one end of the piston rod in the moving direction of the piston rod.

[0014] According to an embodiment of the utility model, a sleeve for closing the piston cavity is provided at one end of the housing away from the vibration-damping shell, and the other end of the piston rod passes through the sleeve and is connected to the vehicle body.

[0015] According to an embodiment of the utility model, the vibration reduction assembly further comprises a support seat, which is arranged at an end of the shell away from the vibration reduction shell and is suitable for being connected to the vehicle body.

[0016] According to an embodiment of the utility model, the vibration reduction assembly further includes a second buffer member, which is arranged at the other end of the piston rod and is spaced apart from the sleeve in the moving direction of the piston rod.

[0017] According to an embodiment of the present invention, the vibration reduction assembly further includes an elastic member, and the elastic member is sleeved on the outer periphery of the housing and the vibration reduction shell.

[0018] The vehicle according to the present utility model is briefly described below.

[0019] The vehicle according to the utility model includes the shock absorbing assembly in the above-mentioned embodiment. Since the vehicle according to the utility model is provided with the shock absorbing assembly in the above-mentioned embodiment, the arrangement of the shock absorbing assembly can enable the vehicle to have a good shock absorbing effect. At the same time, the shock absorbing assembly has a high compact structure and a small volume. When arranged, the space occupancy rate of the vehicle can be reduced, the lightweight of the vehicle can be achieved, and it is also convenient for the vehicle to reserve more space for arranging other structures.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a structural diagram of a vibration reduction assembly according to an embodiment of the utility model;

[0023] Figure 2 is a structural diagram of a driving device according to an embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the cooperation between the driving device and the piston rod according to one embodiment of the utility model.

[0025] Reference numerals:

[0026] Vibration reduction assembly 1;

[0027] Housing 11, piston chamber 111, shaft sleeve 112;

[0028] Piston rod 12, first thread 121;

[0029] Driving device 13, driving part 131, motor housing 132, rotor 133, ball bearing 134;

[0030] A vibration-damping housing 14 and a vibration-damping chamber 141;

[0031] Damping piston 15;

[0032] A first buffer member 161 and a second buffer member 162;

[0033] Support seat 17;

[0034] Elastic member 18. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] A hydraulic suspension is usually installed on a vehicle as a shock absorbing device for the vehicle. When the vehicle is parked, the engine is turned off, and the oil in the hydraulic system changes volume after cooling, causing the vehicle body to lower. In addition, the hydraulic suspension needs to start the engine before actively lifting the vehicle body, which is a cumbersome procedure. Therefore, the shock absorbing device not only needs to have a height adjustment function, but also needs to maintain the height of the vehicle when the vehicle is parked. In the related art, such a shock absorbing device usually requires a drive device to be installed outside the shock absorbing device, and the overall structure is complex, large in size, and not conducive to layout.

[0037] Reference below Figure 1-Figure 3 A vibration reduction assembly according to an embodiment of the present invention is described.

[0038] According to the utility model, the vibration reduction assembly 1 includes a housing 11, a piston rod 12 and a driving device 13. A piston cavity 111 is formed in the housing 11; the piston rod 12 is movably arranged in the piston cavity 111; the driving device 13 is accommodated in the piston cavity 111 and linked with the piston rod 12 to be suitable for driving the piston rod 12.

[0039] The shock absorbing assembly 1 according to the utility model is mainly applied to vehicles. The shock absorbing assembly 1 is provided with a housing 11, and a piston cavity 111 is formed in the housing 11. A piston rod 12 is movably provided in the piston cavity 111. When the piston rod 12 moves, the piston rod 12 can contact and connect with the chassis of the vehicle body to adjust the height of the vehicle chassis. Specifically, a driving device 13 is provided in the housing 11, and the driving device 13 can be linked with the piston rod 12 to drive the piston rod 12 to move in the piston cavity 111, thereby realizing the process of adjusting the height of the vehicle chassis by the driving device 13. The driving device 13 here can be a motor or other driving structure.

[0040] The vibration reduction assembly 1 can accurately control the movement of the piston rod 12 in the piston chamber 111 through the cooperation of the driving device 13 and the piston rod 12, so as to realize the function of the vibration reduction assembly 1 to actively adjust the chassis lifting and lowering to control the vehicle height, thereby avoiding the problem of the vehicle sinking when parking.

[0041] At the same time, the vibration damping assembly 1 arranges the driving device 13 in the piston chamber 111, that is, the driving device 13 is located inside the shell 11, which can improve the compactness of the structure of the vibration damping assembly 1, improve the space utilization of the piston chamber 111, reduce the volume of the vibration damping assembly 1, and facilitate the assembly and layout of the vibration damping assembly 1.

[0042] According to an embodiment of the present invention, the driving device 13 is provided with a driving portion 131 that rotates around the moving direction of the piston rod 12 , and the driving portion 131 cooperates with the piston rod 12 to drive the piston rod 12 to move linearly by rotation.

[0043] A driving part 131 is provided on the driving device 13. The driving part 131 is sleeved on the outer periphery of the piston rod 12 and can rotate around the moving direction of the piston rod 12. It can also be understood that the driving part 131 can rotate in the direction with the piston rod 12 as the rotation axis. When the driving part 131 rotates, it can drive the piston rod 12 to rotate. At this time, since the position of the driving device 13 is fixed, the piston rod 12 can form a rotational upward or rotational downward movement mode relative to the driving device 13, and then the rotation of the driving part 131 is converted into a linear movement of the piston rod 12 to facilitate the adjustment of the height of the vehicle chassis.

[0044] By controlling the rotation speed and direction of the driving part 131, the linear movement speed and direction of the piston rod 12 can be accurately adjusted, thereby achieving accurate control of the vehicle height and improving the accuracy of the shock absorbing assembly 1 in adjusting the vehicle height. At the same time, the driving part 131 and the piston rod 12 are directly matched without an adapter, so when the driving part 131 rotates, the rotation energy can be efficiently converted into the linear motion energy of the piston rod 12, reducing energy loss, and helping to ensure that the shock absorbing assembly 1 can respond quickly and work effectively when needed.

[0045] According to one embodiment of the utility model, at least part of the outer circumference of the piston rod 12 is provided with a first thread 121, and the driving portion 131 is provided with a second thread suitable for engaging with the first thread 121, and the driving device 13 is suitable for threadably cooperating with the piston rod 12 to drive the piston rod 12 to move in a straight line when the driving portion 131 rotates.

[0046] Since the rotation of the driving part 131 can drive the piston rod 12 to move linearly, the cooperation between the driving part 131 and the piston rod 12 will affect the movement of the piston rod 12. Specifically, the outer surface of the piston rod 12 is provided with a first thread 121, and the inner surface where the driving part 131 cooperates with the piston rod 12 is provided with a second thread. The cooperation between the first thread 121 and the second thread can realize that the driving part 131 drives the piston rod 12 to move.

[0047] When the driving part 131 rotates, the threaded engagement method can ensure that the piston rod 12 can move accurately and stably along a straight line. Such a transmission method has a high degree of reliability and consistency, and can make the process of adjusting the vehicle height by the shock absorbing assembly 1 more stable.

[0048] The connection and transmission between the driving part 131 and the piston rod 12 are realized by threaded matching, which can simplify the structural design of the vibration reduction assembly 1, reduce the manufacturing cost, and improve the reliability of the entire system. At the same time, the threaded matching can reduce the difficulty of assembling the driving part 131 and the piston rod 12. When it is necessary to repair or replace some parts of the vibration reduction assembly 1, the threaded matching design makes these operations easier and faster, thereby improving the maintenance efficiency.

[0049] According to one embodiment of the utility model, the driving device 13 includes a motor housing 132 and a rotor 133. The motor housing 132 is accommodated in the piston chamber 111; the rotor 133 is rotatably disposed in the motor housing 132, the rotor 133 surrounds the outer circumference of the piston rod 12 and the rotor 133 is connected to the driving part 131.

[0050] The driving device 13 is provided with a motor housing 132, and the motor housing 132 body 11 is accommodated in the piston cavity 111. A rotor 133 is rotatably provided in the motor housing 132 body 11. By integrating the motor housing 132 and the rotor 133 in the piston cavity 111, the structure of the entire vibration reduction assembly 1 is made more compact, the space occupancy is reduced, and the integration and space utilization of the vehicle are improved.

[0051] The rotor 133 surrounds the outer circumference of the piston rod 12 and a driving part 131 is provided on the surface of the rotor 133 facing the piston rod 12. The rotation of the rotor 133 can drive the driving part 131 to rotate. The rotor 133 surrounds the outer circumference of the piston rod 12 and is directly connected to the driving part 131, realizing direct drive from the motor to the piston rod 12. This driving method reduces the intermediate transmission links and improves the energy transmission efficiency.

[0052] According to an embodiment of the present invention, the driving portion 131 is configured as a screw nut, and a plurality of balls 134 are disposed between the screw nut and the outer peripheral wall of the piston rod 12 .

[0053] like Figure 1-Figure 3 As shown, unlike the direct contact and meshing of the first thread 121 and the second thread, the driving part 131 can be constructed as a screw nut, the piston rod 12 can be constructed as a screw, and a ball 134 can be arranged between the screw nut and the screw, and the ball 134 forms a rolling contact between the screw nut and the piston rod 12. The transmission of the ball 134 screw has a small sliding friction, which significantly reduces the friction resistance, thereby improving the transmission efficiency and ensuring a high-quality and high-precision transmission effect. Since the friction and wear generated by the ball 134 during the transmission process are relatively small, the service life of the vibration reduction assembly 1 can be extended, the frequency and cost of maintenance can be reduced, and the reliability and durability of the vibration reduction assembly 1 can be improved.

[0054] The rolling contact of the ball 134 enables the lead screw nut to accurately control the linear movement of the piston rod 12, achieving high-precision positioning, and improving the accuracy of the vibration reduction assembly 1 in adjusting the vehicle height. For example, the repeatability of the ball 134 lead screw transmission can reach 0.01 mm, which is very suitable for motion control systems that require high precision.

[0055] In addition, the rolling contact mode of the ball 134 reduces noise and vibration during the transmission process, has a good silencing effect, and can improve the ride comfort of the vehicle.

[0056] According to one embodiment of the utility model, the vibration damping assembly 1 also includes a vibration damping shell 14, which is connected to the motor shell 132, and a vibration damping cavity 141 is formed in the vibration damping shell 14, and one end of the piston rod 12 extends into the vibration damping cavity 141 and is movable in the vibration damping cavity 141.

[0057] One end of the piston rod 12 is inserted into the vibration damping chamber 141. When the driving device 13 drives the piston rod 12 to move, the piston rod 12 also moves in the vibration damping chamber 141. The gas or other structures in the vibration damping chamber 141 can limit the movement of the piston rod 12 and thus achieve the vibration damping effect of the vibration damping assembly 1. The movement restriction of the piston rod 12 mentioned here can be understood as damping. The design of the vibration damping chamber 141 enables the vibration damping assembly 1 to more effectively absorb and reduce the vibration and impact generated during the driving of the vehicle, thereby improving the riding comfort and stability.

[0058] The vibration damping housing 14 not only provides additional protection for the vibration damping assembly 1, but also enhances the structural stability of the entire assembly, enabling the vibration damping assembly 1 to withstand impacts and vibrations from the outside and inside of the vehicle, protecting internal parts from damage, and improving the durability and reliability of the vibration damping assembly 1.

[0059] According to an embodiment of the present invention, the vibration reduction assembly 1 further includes a vibration reduction piston 15 . The vibration reduction piston 15 is disposed in the vibration reduction chamber 141 and sleeved on at least a portion of the outer circumference of one end of the piston rod 12 .

[0060] The vibration damping assembly 1 is provided with a vibration damping piston 15 at one end of the piston rod 12 extending into the vibration damping chamber 141. The vibration damping piston 15 defines two closed cavities in the vibration damping chamber 141. When the piston rod 12 moves, the vibration damping piston 15 will move accordingly. Since the vibration damping chamber 141 is filled with gas, the movement of the vibration damping piston 15 will cause the air pressure in the two cavities to change. Therefore, the two chambers will simultaneously limit the movement of the vibration damping piston 15, thereby achieving the effect of buffering and vibration reduction.

[0061] The damping piston 15 can also undergo elastic deformation to more effectively absorb and reduce vibration and impact generated during the driving of the vehicle, thereby improving riding comfort and stability.

[0062] In addition, the damping piston 15 is sleeved on the outer periphery of the piston rod 12, which can play a certain protective role, reduce the wear and impact of the piston rod 12 during the damping process, help to extend the service life of the piston rod 12, and reduce maintenance costs.

[0063] According to an embodiment of the present invention, the vibration reduction assembly 1 further includes a first buffer 161 , which is disposed at the bottom of the vibration reduction chamber 141 and faces one end of the piston rod 12 in the moving direction of the piston rod 12 .

[0064] When the piston rod 12 moves in the shock absorbing chamber 141 or the vehicle is traveling on a bumpy road, especially when subjected to sudden impact or vibration, the piston rod 12 may contact the bottom of the piston chamber 111. At this time, the first buffer member 161 can absorb vibration energy through its own elastic deformation, and provide a buffering effect when the piston rod 12 contacts the bottom of the piston chamber 111, thereby reducing the direct impact of the piston rod 12 on the bottom of the shock absorbing chamber 141, helping to protect the internal structure of the shock absorbing assembly 1, and extending the service life of the shock absorbing assembly 1, thereby further improving the ride comfort and stability of the vehicle.

[0065] At the same time, the presence of the first buffer member 161 helps to reduce the noise generated by the direct collision between the piston rod 12 and the bottom of the vibration reduction chamber 141, thereby improving the quietness and riding experience of the vehicle.

[0066] According to an embodiment of the present invention, a sleeve 112 for sealing the piston cavity 111 is disposed at one end of the housing 11 away from the vibration-damping shell 14 , and the other end of the piston rod 12 passes through the sleeve 112 and is connected to the vehicle body.

[0067] A sleeve 112 may be provided at one end of the housing 11 away from the vibration-damping housing 14, and one end of the piston rod 12 away from the first buffer 161 may pass through the sleeve 112 and extend out of the vibration-damping device so as to contact the chassis of the vehicle body. The sleeve 112 may seal the piston cavity 111, preventing foreign dust and other impurities from entering the piston cavity 111 and affecting the movement of the piston rod 12 and the operation of the driving device 13, thereby ensuring the cleanliness and stability of the internal environment of the vibration-damping assembly 1, and improving the stability and safety of the vibration-damping assembly 1 itself.

[0068] The shaft sleeve 112 can also provide a stable support and guide for the piston rod 12 , which can prevent the piston rod 12 from deflecting or bending during movement, thereby helping to protect the piston rod 12 from damage and extending the service life of the piston rod 12 .

[0069] In addition, the arrangement of the bushing 112 can also simplify the installation and disassembly process of the vibration damping assembly 1. For example, when the structure inside the vibration damping assembly 1 needs to be repaired or replaced, the bushing 112 can be easily removed, thereby enabling rapid inspection and repair of the internal structure of the vibration damping assembly 1.

[0070] According to an embodiment of the utility model, the vibration reduction assembly 1 further comprises a support seat 17, which is arranged at one end of the housing 11 away from the vibration reduction housing 14 and is suitable for connecting with the vehicle body. The arrangement of the support seat 17 can increase the contact area between the piston rod 12 and the vehicle chassis to ensure the stability of the piston rod 12 when adjusting the height of the vehicle chassis.

[0071] According to an embodiment of the present invention, the vibration reduction assembly 1 further includes a second buffer 162 , which is disposed at the other end of the piston rod 12 and is spaced apart from the sleeve 112 in the moving direction of the piston rod 12 .

[0072] like Figure 1 and Figure 2 As shown, when the piston rod 12 is subjected to impact or vibration from the vehicle body chassis, the second buffer member 162 can provide additional buffering effect, reduce the direct impact of the piston rod 12 and the support seat 17 on the sleeve 112, help protect the sleeve 112 and the vehicle body structure, reduce damage or deformation caused by impact, reduce the frequency of maintenance and replacement, and thus extend the service life of the shock absorbing assembly 1.

[0073] According to an embodiment of the present invention, the vibration reduction assembly 1 further includes an elastic member 18 , and the elastic member 18 is sleeved on the outer circumference of the housing 11 and the vibration reduction shell 14 .

[0074] like Figure 1 As shown, when the vibration damping assembly 1 is subjected to external impact or vibration, the elastic member 18 can absorb a portion of the vibration energy through its own elastic deformation to reduce the risk of damage to the vibration damping assembly 1 by the impact, thereby improving the vibration damping effect of the vibration damping assembly 1.

[0075] The vehicle according to the present utility model is briefly described below.

[0076] The vehicle according to the utility model includes the shock absorbing assembly 1 in the above embodiment. Since the vehicle according to the utility model is provided with the shock absorbing assembly 1 in the above embodiment, the setting of the shock absorbing assembly 1 can enable the vehicle to have a good shock absorbing effect. At the same time, the shock absorbing assembly 1 has a high compact structure and a small volume. When arranged, the space occupancy rate of the vehicle can be reduced, the lightweight of the vehicle can be achieved, and it is also convenient for the vehicle to reserve more space for arranging other structures.

[0077] In some embodiments, when the vehicle is stationary, the drive device 13 can stop working and cut off the power. At this time, the drive device 13 will limit the movement of the piston rod 12, and the vehicle can maintain the current height to prevent the vehicle from sinking due to long-term stationary stay.

[0078] In some embodiments, the vibration reduction assembly 1 can also be provided with a longitudinal acceleration sensor and a lateral acceleration sensor. The longitudinal acceleration sensor detects the acceleration, deceleration, bounce, roll, and pitch of the vehicle in real time. At this time, the damping of the shock absorber of each drive device 13 can be adjusted individually according to the feedback of the ECU (electronic controller) to suppress these adverse factors, while increasing comfort and controllability. When the damping of a single vibration reduction assembly 1 needs to be improved, at this time, a current can be applied to the drive device 13, and the current size is set according to specific needs. If the force of the driving motor and the direction of the screw movement are opposite at this time, then the motor can increase the current in the opposite direction of the piston rod 12 to apply a reaction force to suppress the movement of the piston rod 12; if the motor force and the direction of the screw movement are in the same direction at this time, then the motor can reduce the current in the direction of the screw movement to reduce the positive force. The vibration reduction assembly 1 adds adjustable motor damping on the basis of the single oil damping of the traditional shock absorber, so that the damping force of the vibration reduction assembly 1 is in an ideal state, and finally the semi-active mode of the shock absorber is realized, taking into account comfort and energy consumption. Similarly, when the damping force needs to be reduced, if the force of the driving device 13 is in the same direction as the movement direction of the screw, the driving device 13 can increase the driving force on the piston rod 12 by increasing the current. If the motor force and the movement direction of the screw are opposite, the driving device 13 can reduce the damping force by reducing the current.

[0079] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0080] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0081] In the description of the present invention, "plurality" means two or more.

[0082] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0083] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0084] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0085] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vibration reduction assembly for a vehicle, characterized in that: include: A housing (11), wherein a piston chamber (111) is formed in the housing (11); A piston rod (12), wherein the piston rod (12) is movably disposed in the piston chamber (111); A driving device (13) is housed in the piston chamber (111) and is linked with the piston rod (12) so as to be suitable for driving the piston rod (12).

2. The vibration damping assembly (1) for a vehicle according to claim 1, characterized in that: The driving device (13) is provided with a driving portion (131) that rotates around the moving direction of the piston rod (12); the driving portion (131) cooperates with the piston rod (12) to drive the piston rod (12) to move linearly by rotation.

3. The vibration damping assembly (1) for a vehicle according to claim 2, characterized in that: At least part of the outer circumference of the piston rod (12) is provided with a first thread (121), and the driving portion (131) is provided with a second thread suitable for engaging with the first thread (121). The driving device (13) is suitable for cooperating with the thread of the piston rod (12) to drive the piston rod (12) to move in a straight line when the driving portion (131) rotates.

4. The vibration damping assembly (1) for a vehicle according to claim 3, characterized in that: The driving device (13) comprises: A motor housing (132), wherein the motor housing (132) is accommodated in the piston chamber (111); A rotor (133), wherein the rotor (133) is rotatably disposed in the motor housing (132), the rotor (133) surrounds the outer circumference of the piston rod (12) and the rotor (133) is connected to the driving part (131).

5. The vibration damping assembly (1) for a vehicle according to claim 4, characterized in that: The driving part (131) is configured as a screw nut, and a plurality of balls (134) are arranged between the screw nut and the outer peripheral wall of the piston rod (12).

6. The vibration damping assembly (1) for a vehicle according to claim 4, characterized in that: Also includes: A vibration-damping housing (14), the vibration-damping housing (14) being connected to the motor housing (132), a vibration-damping chamber (141) being formed in the vibration-damping housing (14), one end of the piston rod (12) extending into the vibration-damping chamber (141) and being movable in the vibration-damping chamber (141).

7. The vibration damping assembly (1) for a vehicle according to claim 6, characterized in that: Also includes: A vibration-damping piston (15), wherein the vibration-damping piston (15) is disposed in the vibration-damping chamber (141) and sleeved on at least a portion of the outer circumference of one end of the piston rod (12).

8. The vibration damping assembly (1) for a vehicle according to claim 7, characterized in that: Also includes: A first buffer (161), wherein the first buffer (161) is arranged at the bottom of the vibration reduction chamber (141) and is directly opposite to one end of the piston rod (12) in the moving direction of the piston rod (12).

9. The vibration damping assembly (1) for a vehicle according to claim 6, characterized in that: A shaft sleeve (112) for sealing the piston chamber (111) is provided at one end of the housing (11) away from the vibration-damping shell (14); the other end of the piston rod (12) passes through the shaft sleeve (112) and is connected to the vehicle body.

10. The vibration damping assembly (1) for a vehicle according to claim 9, characterized in that: Also includes: A support seat (17) is arranged at an end of the shell (11) away from the vibration-damping housing (14) and is suitable for being connected to a vehicle body.

11. The vibration damping assembly (1) for a vehicle according to claim 9, characterized in that: Also includes: A second buffer member (162), wherein the second buffer member (162) is arranged at the other end of the piston rod (12) and is spaced apart from the shaft sleeve (112) in the moving direction of the piston rod (12).

12. The vibration damping assembly (1) for a vehicle according to claim 6, characterized in that: Also includes: An elastic member (18) is sleeved on the outer circumference of the housing (11) and the vibration-damping shell (14).

13. A vehicle, characterized in that: The vibration reduction assembly (1) comprises the vibration reduction assembly (1) as claimed in any one of claims 1 to 12.

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