Damping device and vehicle

Abstract

The invention discloses a damping device and a vehicle, the damping device comprises a driving device and a damping assembly, and the driving device is used for driving the damping assembly to move. According to the damping device, the output force can be actively adjusted according to the impact force borne by the vehicle by arranging the driving device, so that the damping output by the damping device can be matched with the impact force, the damping effect of the damping device can be guaranteed, and the comfort level of a user is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicles, and more particularly to a damping device and a vehicle. Background Technology

[0002] In related technologies, when a vehicle is driving on an uneven road surface, it will be subjected to impacts and vibrations from the road surface. Passive damping often cannot meet the vehicle's damping requirements, which can easily lead to user discomfort. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a damping device that can output corresponding damping according to the impact force to ensure vibration reduction effect, thereby improving user comfort.

[0004] A damping device according to an embodiment of the present invention includes: a driving device; and a damping component, wherein the driving device is used to drive the damping component to move.

[0005] According to the damping device of the present invention, by setting a driving device, the output force can be actively adjusted according to the impact force on the vehicle, so that the damping output of the damping device can match the impact force, which helps to ensure the vibration reduction effect of the damping device and improves the user's comfort.

[0006] According to some embodiments of the present invention, the damping device includes a transmission mechanism and a motion component, and the driving device is used to drive the transmission mechanism to move the motion component.

[0007] According to some embodiments of the present invention, the driving device is used to drive the transmission mechanism to move the motion component along a first direction or along a second direction, wherein the first direction is opposite to the second direction.

[0008] According to some embodiments of the present invention, the inner wall of the transmission mechanism is provided with a guide structure, the motion component is adapted to cooperate with the guide structure, the driving device drives the transmission mechanism to move, and the transmission mechanism drives the motion component to move in a first direction or a second direction.

[0009] According to some embodiments of the present invention, the damping device is configured as a transmission sleeve, the inner wall of the transmission sleeve is formed with a threaded guide groove to define the guide structure, the motion component is a transmission shaft, the transmission shaft is installed in the transmission sleeve and guides and cooperates with the guide groove to reciprocate relative to the transmission sleeve.

[0010] According to some embodiments of the present invention, the damping device further includes a plurality of followers, the plurality of followers being arranged circumferentially spaced along the drive shaft and protruding from the outer peripheral wall of the drive shaft, the plurality of followers being slidably engaged with the guide groove.

[0011] According to some embodiments of the present invention, the damping device includes a follower rod and a support bearing. One end of the follower rod is fixed to the drive shaft, and the support bearing is mounted on the other end of the follower rod and is rotatable relative to the follower rod. The support bearing is movably supported in the guide groove.

[0012] According to some embodiments of the present invention, the outer peripheral wall of the transmission shaft is provided with a threaded hole corresponding to the follower, and one end of the follower rod is screwed into the threaded hole.

[0013] According to some embodiments of the present invention, the driving device is located at one end of the transmission mechanism.

[0014] According to some embodiments of the damping device of the present invention, both the transmission mechanism and the motion component have a first end and a second end, the first end of the transmission mechanism is disposed corresponding to the first end of the motion component, and the second end of the transmission mechanism is adapted to allow the second end of the motion component to extend out; the driving device is disposed at the first end of the transmission mechanism; or the driving device is disposed adjacent to the first end of the transmission mechanism.

[0015] According to some embodiments of the present invention, the driving device includes a drive motor, the drive motor including a stator and a rotor, the stator being coupled to the rotor to drive the rotor to rotate, and the rotor driving the damping assembly.

[0016] According to some embodiments of the present invention, the rotor is connected to the damping assembly.

[0017] According to some embodiments of the present invention, the driving device further includes a rotary encoder mounted above the stator and / or the rotor to detect the state of the rotor.

[0018] According to some embodiments of the present invention, the damping device has the rotor rotatably mounted on the outside of the stator.

[0019] According to some embodiments of the present invention, the damping device further includes a housing, the driving device being at least partially disposed within the housing; and / or the damping assembly being partially disposed within the housing.

[0020] According to some embodiments of the present invention, the damping device is a drive motor, the drive motor includes a stator and a rotor, the stator is fixed to the housing, and the damping assembly is located below the drive motor.

[0021] According to some embodiments of the present invention, the damping device further includes a stator support, which is connected to the housing and serves to support the stator.

[0022] According to some embodiments of the present invention, the damping device includes a transmission mechanism and a motion component. The driving device is used to drive the transmission mechanism to move the motion component. The stator support is equipped with a first rotary bearing, and the housing is equipped with a second rotary bearing. The two ends of the transmission mechanism are respectively engaged with the first rotary bearing and the second rotary bearing.

[0023] According to some embodiments of the present invention, the inner wall of the housing is provided with a support protrusion protruding toward the stator support, and the second rotary bearing is supported on the support protrusion such that the end of the transmission mechanism is spaced apart from the inner wall of the housing.

[0024] According to some embodiments of the present invention, the drive motor further includes a rotor support, and the rotor is connected to the damping assembly via the rotor support.

[0025] According to some embodiments of the present invention, the damping device includes a transmission mechanism and a motion component. The drive motor is used to drive the transmission mechanism to move the motion component. The transmission mechanism is configured as a transmission sleeve, and the rotor is connected to the transmission sleeve through the rotor support.

[0026] According to some embodiments of the damping device of the present invention, the rotor support is provided with a radially protruding connecting portion on the side facing the rotor, the connecting portion and the rotor are arranged sequentially along the axial direction, and the transmission sleeve partially overlaps with and is connected to the connecting portion along the axial direction.

[0027] According to some embodiments of the present invention, the damping device further includes: a fork and a damping spring, wherein one end of the damping assembly extending out of the housing is connected to the fork, the fork is provided with a limiting portion, the outer peripheral wall of the housing is provided with a limiting protrusion, and the damping spring is sandwiched between the limiting portion and the limiting protrusion.

[0028] According to some embodiments of the present invention, the damping device includes an upper housing, a lower housing, and a bottom cover, wherein the upper housing and the lower housing are arranged sequentially and connected, and the bottom cover is disposed on the side of the lower housing opposite to the upper housing.

[0029] The present invention also proposes a vehicle.

[0030] The vehicle according to an embodiment of the present invention includes the damping device according to any of the above embodiments.

[0031] The vehicle according to the embodiments of the present invention has good overall performance, which helps to improve user satisfaction.

[0032] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0033] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0034] Figure 1 This is a schematic diagram of a damping device according to an embodiment of the present invention;

[0035] Figure 2 This is a cross-sectional view of a damping device according to an embodiment of the present invention;

[0036] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0037] Figure 4 This is a schematic diagram of a transmission sleeve according to an embodiment of the present invention;

[0038] Figure 5 yes Figure 2 A magnified view of a section at point B.

[0039] Figure label:

[0040] Damping device 100,

[0041] Housing 1, upper housing 1a, lower housing 1b, bottom cover 1c, mounting cavity 11, second rotary bearing 12, support protrusion 13, limiting protrusion 14.

[0042] Drive motor 2, stator 21, rotor 22, stator support 23, first rotary bearing 231, mounting part 232, rotor support 24, connecting part 241.

[0043] Damping assembly 3, transmission sleeve 31, guide groove 311, limit key 312, transmission shaft 32, head 321, rod body 322, threaded hole 321, follower 33, follower rod 331, support bearing 332.

[0044] Rotary encoder 4, fork 5, limit part 51, vibration damping spring 6. Detailed Implementation

[0045] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0046] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] Hereinafter, with reference to the accompanying drawings, a damping device 100 according to an embodiment of the present invention will be described. It should be noted that the damping device 100 is installed between the vehicle frame and the axle, and the damping device 100 is used to buffer the vibration transmitted from the axle to the vehicle frame, so as to reduce the vibration of the vehicle frame.

[0049] like Figures 1-5 As shown, the damping device 100 according to an embodiment of the present invention includes: a driving device and a damping component 3, wherein the driving device is used to drive the damping component 3 to move. Specifically, the damping component 3 has a cam structure, and the driving device can drive the damping component 3 to reciprocate through the cam structure to buffer the vibration transmitted from the axle to the vehicle frame.

[0050] It should be noted that the drive unit can adjust the output force according to the impact force on the vehicle to adjust the damping of the damping device 100. For example, when the impact force is large, the output force of the drive unit can be increased to increase the damping, thereby ensuring that the damping device 100 can effectively reduce vibration. When the impact force is small, the output force of the drive unit can be reduced to reduce the damping, so that the damping component 3 can have sufficient buffer stroke.

[0051] According to the present invention, the damping device 100 can actively adjust the output force according to the impact force on the vehicle by setting a driving device, so that the damping output of the damping device 100 can match the impact force, which helps to ensure the vibration reduction effect of the damping device 100 and improves the user's comfort.

[0052] In some embodiments of the present invention, such as Figures 1-3 As shown, the damping component 3 includes a transmission mechanism and a motion component. The transmission mechanism is formed as a cam structure, and the drive device is used to drive the transmission mechanism to drive the motion component to reciprocate, thereby buffering the vibration transmitted from the axle to the frame. This ensures the vibration reduction effect of the damping component 3.

[0053] In some embodiments of the present invention, such as Figures 1-3 As shown, the drive device drives the transmission mechanism to move the motion component along a first direction or a second direction, where the first and second directions are opposite. It should be noted that the first and second directions are parallel to the vibration transmission direction. This simplifies the trajectory of the motion component, allowing the damping component 3 to efficiently reduce vehicle vibration.

[0054] In some embodiments of the present invention, the transmission mechanism can be formed as a cylindrical cam. Since the cylindrical cam can precisely control the motion trajectory, speed and acceleration of the follower through its specific profile shape, the use of a cylindrical cam can effectively reduce vibration during vehicle operation, thereby improving the stability and comfort of the vehicle during operation and thus enhancing the driving experience.

[0055] Furthermore, since the cylindrical cam design allows power to be directly transmitted to the moving components, reducing intermediate transmission links, it can improve the overall efficiency and operational stability of the damping component 3. Moreover, the use of a cylindrical cam can make the structure of the damping component 3 relatively simple and occupy less space, making it easier to achieve complex motion control in a limited space, and making it easier to reduce the difficulty of maintenance and replacement of the damping component 3.

[0056] In some embodiments of the present invention, such as Figures 1-3As shown, the transmission mechanism is cylindrical in shape, with a guide structure on its inner wall. The moving component extends into the transmission mechanism and is adapted to cooperate with the guide structure. The drive device can drive the transmission mechanism to move, and the transmission mechanism can drive the moving component to move in a first direction or a second direction through the guide structure, so that the moving component can dampen the vehicle. This improves the stability of the cooperation between the transmission mechanism and the moving component, which is beneficial to improving the reliability of the damping component 3.

[0057] In some embodiments of the present invention, such as Figures 1-3 As shown, the transmission mechanism can be constructed as a transmission sleeve 31, with a guide groove 311 formed on the inner wall of the transmission sleeve 31 to define the guiding structure. The guide groove 311 is threaded, and the moving component can be constructed as a transmission shaft 32. The transmission shaft 32 is installed inside the transmission sleeve 31 and guides and engages with the guide groove 311. When the driving device drives the transmission sleeve 31 to rotate, the transmission sleeve 31 can drive the transmission shaft 32 to move axially through the guide groove 311, so that the transmission shaft 32 can reciprocate relative to the transmission sleeve 31.

[0058] The above settings simplify the structure of the damping component 3 and make the movement of the transmission shaft 32 more stable, thereby improving the reliability of the damping device 100.

[0059] In some embodiments of the present invention, such as Figure 2 and Figure 5 As shown, the damping assembly 3 also includes a follower 33. There are multiple followers 33, such as two, three or more. The multiple followers 33 are arranged circumferentially along the transmission shaft 32. The followers 33 are connected to the transmission shaft 32 and protrude from the outer peripheral wall of the transmission shaft 32. The multiple followers 33 are respectively slidably engaged with the guide groove 311 so that the transmission sleeve 31 can drive the transmission shaft 32 to move through the follower 33.

[0060] The above settings simplify the structure of the drive shaft 32, reduce the processing difficulty of the drive shaft 32, and improve the practicality of the damping device 100.

[0061] In some embodiments of the present invention, such as Figure 5 As shown, the follower 33 includes a follower rod 331 and a support bearing 332. One end of the follower rod 331 along the length direction is fixed to the drive shaft 32. The support bearing 332 is installed at the other end of the follower rod 331 along the length direction. The support bearing 332 is rotatable relative to the follower rod 331 and is movably supported in the guide groove 311.

[0062] By setting the above, the friction between the follower 33 and the guide groove 311 can be reduced, so that the transmission sleeve 31 can better drive the transmission shaft 32 to move, thereby improving the motion stability of the transmission shaft 32 and enhancing the vibration reduction effect of the damping device 100.

[0063] In some embodiments of the present invention, such as Figure 5 As shown, a threaded hole 321 can be provided on the outer peripheral wall of the drive shaft 32 corresponding to the follower 33. The follower rod 331 is cylindrical in shape, and one end of the follower rod 331 along the length direction is provided with an external thread. The follower rod 331 can be screwed into the threaded hole 321 through the external thread to detachably install the follower 33 on the drive shaft 32.

[0064] The above settings reduce the installation difficulty of the follower 33, improve the installation stability of the follower 33, and make the follower 33 easy to replace, which is beneficial for subsequent maintenance and improves the practicality of the damping device 100.

[0065] Of course, a snap-fit ​​hole can also be provided on the transmission shaft 32, and the follower rod 331 can be snapped into the snap-fit ​​hole. This invention does not limit this.

[0066] Furthermore, such as Figure 2 As shown, the drive shaft 32 can be configured to include a connected head 321 and a rod portion 322. The diameter of the head 321 is larger than the diameter of the rod portion 322, and the head 321 has a threaded hole 321. This configuration improves the structural strength and reliability of the drive shaft 32.

[0067] In some embodiments of the present invention, such as Figure 2 As shown, the drive device is located at one end of the transmission mechanism. Exemplarily, the drive device can be located at the upper end of the transmission mechanism. This arrangement makes it easier to connect the drive device to the transmission mechanism, reduces the overall size of the damping device 100, and improves the design rationality of the damping device 100.

[0068] In some embodiments of the present invention, both the transmission mechanism and the motion component have a first end and a second end. The first end of the transmission mechanism is correspondingly disposed with the first end of the motion component, and the second end of the transmission mechanism is adapted to allow the second end of the motion component to extend out. The driving device is disposed at the first end of the transmission mechanism; or the driving device is disposed near the first end of the transmission mechanism.

[0069] For example, refer to Figure 2As shown, the transmission mechanism has a first end and a second end along its length, and the motion component also has a first end and a second end along its length. The motion component is installed inside the transmission mechanism. The first end of the transmission mechanism is opposite to the first end of the motion component, and the second end of the transmission mechanism is open outward, allowing the second end of the motion component to extend from the second end of the transmission mechanism so that the second end of the motion component can be connected to a related component (e.g., an axle). For example, the first end can be designated as the upper end and the second end as the lower end.

[0070] Alternatively, the driving device can be located at the first end of the transmission mechanism, so that the driving device cooperates with the first end of the transmission mechanism; or, the driving device can be located near the first end of the transmission mechanism, so that the driving device cooperates with the first end of the transmission mechanism. This invention does not limit the choice of which method to use.

[0071] With the above arrangement, the drive device and the motion component can be spaced apart at one end of the transmission structure to avoid mutual interference between the drive device and the motion component, thereby improving the design rationality of the damping device 100.

[0072] In some embodiments of the present invention, the driving device includes a drive motor 2, which includes a stator 21 and a rotor 22. The stator 21 and the rotor 22 are coupled together to drive the rotor 22 to rotate, and the rotor 22 drives the damping assembly 3.

[0073] For example, refer to Figure 1-2 As shown, the drive motor 2 includes a stator 21 and a rotor 22, which are fitted together. One of the rotor 21 and the stator 22 is a winding coil, and the other is a permanent magnet, allowing the stator 21 and the rotor 22 to be coupled together so that the stator 21 can drive the rotor 22 to rotate. Specifically, the stator 21 can be fitted outside the rotor 22, or the rotor 22 can be fitted outside the stator 21; this invention does not limit this. Simultaneously, the rotor 22 can be connected to the damping assembly 3 so that the rotor 22 can drive the damping assembly 3 to rotate. This improves the motion stability of the damping assembly 3 and enhances the reliability of the damping device 100.

[0074] In some embodiments of the present invention, such as Figure 2 As shown, the rotor 22 can be connected to the damping assembly 3, such as by directly connecting the rotor 122 and the damping assembly 3, or by connecting the rotor 122 and the damping assembly 3 through a connector. This improves the motion stability of the damping assembly 3 and enhances the reliability of the damping device 100.

[0075] In some embodiments of the present invention, such as Figure 3As shown, the drive device also includes a rotary encoder 4, which is mounted above the stator 21 and / or the rotor 22 to detect the state of the rotor 22. Specifically, the rotary encoder 4 can be connected to the housing 1 and positioned above the rotor 22; or, the rotary encoder 4 can be connected above the stator 21, with the top of the rotor 22 extending beyond the top of the stator 21 so that the rotary encoder 4 can be radially opposite to the stator 21; or, the rotary encoder 4 can be positioned above the stator 21, with a portion of the rotary encoder 4 extending to the top of the rotor 22 so that the rotary encoder 4 can be axially opposite to the rotor 22.

[0076] With the above settings, the space at the top of the drive motor 2 can be fully utilized, which is conducive to improving space utilization and further improving the integration of the damping device 100, thus enhancing the practicality of the damping device 100.

[0077] In some embodiments of the present invention, such as Figure 3 As shown, the rotor 22 can be rotatably mounted on the outside of the stator 21, so that the drive motor 2 is arranged in an outer rotor and inner stator configuration. With the above configuration, when the radial dimensions of the drive motor 2 are the same, compared with the outer stator and inner rotor configuration, the drive motor 2 has a larger torque and is better able to meet the requirements of the damping device 100 for high torque and low speed.

[0078] In some embodiments of the present invention, the damping device further includes a housing 1, the driving device being at least partially disposed within the housing 1; and / or the damping assembly 3 being partially disposed within the housing 1.

[0079] For example, refer to Figures 1-2 As shown, the damping device 100 also includes a housing 1, which is cylindrical in shape. A mounting cavity 11 is provided inside the housing 1. The damping assembly 3 and the drive motor 2 are arranged sequentially along the axial direction of the housing 1, and the drive device is fixedly connected to the housing 1. Specifically, the drive device can be at least partially installed in the mounting cavity 11 so that the housing 1 can protect the drive device; alternatively, the damping assembly 3 can be partially installed in the mounting cavity 11 so that the housing 1 can protect the damping assembly 3; or alternatively, the drive device can be at least partially installed in the mounting cavity 11, and the damping assembly 3 can also be partially installed in the mounting cavity 11 so that the housing 1 can protect both the drive device and the damping assembly 3.

[0080] It should be noted that one of the housing 1 and the damping component 3 is connected to the frame, and the other is connected to the axle. The drive unit can drive the damping component 3 to move in order to buffer the vibration transmitted from the axle to the frame, thereby achieving active vibration reduction.

[0081] It is understandable that by integrating the drive unit into the housing 1, there is no need to set up a separate housing structure for the drive unit, which improves the integration of the damping device 100, increases space utilization, and achieves lightweight design. Furthermore, by installing the drive unit and the damping component 3 together into the housing 1, the connection stability between the drive unit and the damping component 3 can be improved, and the connection difficulty can be reduced.

[0082] In some embodiments of the present invention, such as Figure 1 As shown, the driving device is a drive motor 2, which includes a stator 21 and a rotor 22. The stator 21 and rotor 22 are coupled together, and the rotor 22 is used to drive the damping assembly 3 to move. The stator 21 can be fixed to the housing 1, and the damping assembly 3 is positioned below the drive motor 2. Specifically, the upper end of the housing 1 can be connected to the vehicle frame, and the damping assembly 3 can be connected to the axle.

[0083] With the above settings, the weight of the damping device 100 can be distributed more on the frame, which helps to reduce unsprung mass and improves vehicle handling and ride comfort.

[0084] In some embodiments of the present invention, the drive motor 2 further includes a stator bracket 23, which is connected to the housing 1 and is used to support the stator 21.

[0085] For example, refer to Figures 2-3 As shown, the drive motor 2 also includes a stator bracket 23, which is connected to the top wall of the housing 1 by means such as welding or gluing. The stator bracket 23 protrudes downward and supports the stator 21 to fix the stator 21 to the housing 1. For example, the stator bracket 23 can be constructed as a cylinder, and the stator 21 can be constructed as a ring, with the stator 21 fitted onto the outer peripheral wall of the stator bracket 23 and having an interference fit with the stator bracket 23; or, the stator bracket 23 can be constructed as a cylinder, and the stator 21 can be constructed as a ring, with the stator 21 installed inside the stator bracket 23 and having an interference fit with the inner side wall of the stator bracket 23. The present invention does not limit this. Thus, the installation stability of the stator 21 can be improved, and the reliability of the damping device 100 can be improved.

[0086] In some embodiments of the present invention, the damping component 3 includes a transmission mechanism and a motion component. The driving device is used to drive the transmission mechanism to move the motion component. The stator bracket 23 is equipped with a first rotary bearing 231, and the housing 1 is equipped with a second rotary bearing 12. The two ends of the transmission mechanism are respectively engaged with the first rotary bearing 231 and the second rotary bearing 12.

[0087] For example, refer to Figures 2-3As shown, the damping assembly 3 includes a transmission mechanism and a motion component. A drive device drives the transmission mechanism to rotate, causing the motion component to reciprocate axially, thereby buffering the vibration transmitted from the axle to the vehicle frame. A mounting portion 232, cylindrical in shape, is provided on the side of the stator support 23 facing the damping assembly 3. A first rotary bearing 231 is mounted on the mounting portion 232, and a second rotary bearing 12 is provided on the inner wall of the housing 1 away from the stator support 23. One end of the transmission mechanism engages with the first rotary bearing 231, and the other end engages with the second rotary bearing 12, allowing the housing 1 to support the transmission mechanism from both ends. This improves the rotational stability of the transmission mechanism and consequently enhances the motion stability of the drive shaft 32.

[0088] In some embodiments of the present invention, such as Figures 2-3 As shown, the inner wall of the housing 1 is provided with a support protrusion 13 protruding towards the stator bracket 23. The second rotating bearing 12 is supported on the support protrusion 13 so that the end of the transmission mechanism is spaced apart from the inner wall of the housing 1.

[0089] For example, an upwardly protruding support protrusion 13 can be provided on the bottom wall of the housing 1. The support protrusion 13 is cylindrical in shape. The second rotary bearing 12 is supported on the outer peripheral wall of the support protrusion 13 and is interference-fitted with the support protrusion 13. The second rotary bearing 12 is spaced apart from the bottom wall of the housing 1. When the lower end of the transmission mechanism is rotatably supported on the second rotary bearing 12, the end of the transmission mechanism can be spaced apart from the bottom wall of the housing 1.

[0090] The above-mentioned design avoids the inner wall of the housing 1 from hindering the rotation of the transmission mechanism, which helps to improve the motion stability of the transmission mechanism and improves the reliability of the damping device 100.

[0091] In some embodiments of the present invention, such as Figures 2-3 As shown, the drive motor 2 also includes a rotor support 24, through which the rotor 22 is connected to the damping assembly 3. This arrangement reduces the difficulty of connecting the rotor 22 and the damping assembly 3, and makes it easier to adjust the relative position between them, thus reducing the processing difficulty of the damping device 100.

[0092] In some embodiments of the present invention, the damping component 3 includes a transmission mechanism and a motion component. The drive motor 2 is used to drive the transmission mechanism to move the motion component. The transmission mechanism is constructed as a transmission sleeve 31, and the rotor 22 is connected to the transmission sleeve 31 through the rotor support 24.

[0093] For example, refer to Figures 1-3As shown, the damping component 3 includes a transmission mechanism and a motion component. The transmission mechanism is formed as a cam structure. The drive motor 2 is used to drive the transmission mechanism to drive the motion component to move back and forth, thereby buffering the vibration transmitted from the axle to the frame.

[0094] The transmission mechanism is constructed as a transmission sleeve 31, with a guide groove 311 formed on the inner wall of the transmission sleeve 31 to define a guiding structure. The guide groove 311 is threaded, and the moving component is constructed as a transmission shaft 32, which is installed inside the transmission sleeve 31 and guides and engages with the guide groove 311. When the drive device drives the transmission sleeve 31 to rotate, the transmission sleeve 31 can drive the transmission shaft 32 to move axially through the guide groove 311, so that the transmission shaft 32 can reciprocate relative to the transmission sleeve 31. Simultaneously, a rotor 22 can be connected to the transmission sleeve 31 via a rotor support 24, so that the drive motor 2 can drive the transmission sleeve 31 to rotate through the rotor support 24.

[0095] The above settings enable a stable connection between the rotor 22 and the transmission sleeve 31, improving the operational stability of the damping assembly 3 and ensuring its vibration reduction effect.

[0096] In some embodiments of the present invention, such as Figures 2-3 As shown, the rotor support 24 has a radially protruding connecting part 241 on the side facing the rotor 22. The connecting part 241 and the rotor 22 are arranged sequentially along the axial direction. The transmission sleeve 31 partially overlaps with and is connected to the connecting part 241 along the axial direction.

[0097] For example, the rotor support 24 can be constructed as a cylinder. The rotor 22 is installed inside the rotor support 24 and glued to the inner wall of the rotor support 24. The inner wall of the rotor support 24 is provided with a connecting part 241, which protrudes inward along the radial direction of the rotor support 24. The connecting part 241 and the rotor 22 are arranged sequentially along the axial direction, and the connecting part 241 is located at the end of the rotor 22 near the drive shaft 32. The connecting part 241 can be matched with the rotor 22 for limiting engagement. At the same time, one end of the drive sleeve 31 can extend into the rotor support 24 along the axial direction. The part of the drive sleeve 31 extending into the rotor support 24 coincides with and is connected to the connecting part 241.

[0098] The above settings can improve the installation stability and accuracy of the rotor 22, and increase the connection area between the transmission sleeve 31 and the rotor support 24, thereby improving the connection stability between the rotor support 24 and the transmission sleeve 31 and improving the reliability of the damping device 100.

[0099] In some embodiments of the present invention, the transmission mechanism and the connecting portion 241 are keyed together. Specifically, as shown in the figure... Figure 3 and Figure 4As shown, a number of limit keys 312 can be provided on the outer peripheral wall of the transmission mechanism. The multiple limit keys 312 are arranged at intervals along the circumference of the transmission mechanism. A number of limit grooves can be provided on the inner peripheral wall of the rotor support 24. The multiple limit keys 312 extend into the multiple limit grooves one by one, so that the transmission mechanism and the rotor support 24 can be matched in a circumferentially limited manner.

[0100] The above settings can improve the transmission stability between the rotor support 24 and the transmission mechanism, which is beneficial to improving the reliability of the damping device 100.

[0101] In some embodiments of the present invention, the damping device 100 of the present invention further includes: a fork 5 and a damping spring 6. One end of the damping assembly 3 extending out of the housing 1 is connected to the fork 5. The fork 5 is provided with a limiting part 51. The outer peripheral wall of the housing 1 is provided with a limiting protrusion 14. The damping spring 6 is sandwiched between the limiting part 51 and the limiting protrusion 14.

[0102] For example, refer to Figure 1 As shown, the damping device 100 includes a fork 5 and a damping spring 6. One end of the damping assembly 3 extending out of the housing 1 is connected to the fork 5. The fork 5 can be connected to an axle or frame to facilitate easy installation of the damping device 100. A limiting part 51 can be provided on the outer peripheral wall of the fork 5, protruding outward along the axial direction of the drive shaft 32. A limiting protrusion 14 can be provided on the outer peripheral wall of the housing 1, protruding outward along the radial direction of the housing 1. One end of the damping spring 6 is connected to the limiting part 51 and the other end is connected to the limiting protrusion 14, so that the damping spring 6 can be sandwiched between the limiting part 51 and the limiting protrusion 14.

[0103] It is understandable that when the vehicle vibrates, there will be relative movement between the fork 5 and the housing 1. The damping spring 6 is used to buffer the relative movement between the fork 5 and the housing 1, so as to realize the passive damping of the damping device 100 and improve the overall damping effect of the damping device 100.

[0104] In some embodiments of the present invention, such as Figure 1 As shown, the housing 1 can be configured to include an upper housing 1a, a lower housing 1b, and a bottom cover 1c. The upper housing 1a and the lower housing 1b are arranged sequentially in the vertical direction and connected to each other. For example, the upper housing 1a and the lower housing 1b can be connected by friction welding. The bottom cover 1c is placed on the side of the lower housing 1b away from the upper housing 1a. The moving component of the damping assembly 3 can pass through the bottom cover 1c and extend to the outside of the housing.

[0105] The above settings can reduce the molding difficulty of the housing 1, reduce the processing cost of the housing 1, and improve the practicality of the damping device 100.

[0106] The present invention also proposes a vehicle.

[0107] The vehicle according to an embodiment of the present invention includes a damping device 100 according to any of the above embodiments.

[0108] The vehicle according to the embodiments of the present invention has good overall performance, which helps to improve user satisfaction.

[0109] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0110] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A damping device (100), characterized in that, The damping assembly (3) comprises a transmission mechanism and a moving assembly, and the driving device is used to drive the transmission mechanism to drive the moving assembly to move. The driving device is used to drive the transmission mechanism to drive the moving assembly to move in a first direction or a second direction, wherein the first direction is opposite to the second direction. The inner wall of the transmission mechanism is provided with a guide structure, and the moving assembly is adapted to cooperate with the guide structure.

2. The damping device (100) according to claim 1, characterized in that The transmission mechanism is configured as a transmission sleeve (31), and the inner wall of the transmission sleeve (31) is formed with a thread-like guide groove (311) to define the guide structure.

3. The damping device (100) according to claim 2, characterized in that The moving assembly is a transmission shaft (32) which is installed in the transmission sleeve (31) and is guided and matched with the guide groove (311) to reciprocate relative to the transmission sleeve (31).

4. The damping device (100) according to claim 3, characterized in that The damping assembly (3) further comprises a plurality of followers (33) which are arranged at intervals along the circumference of the transmission shaft (32) and protrude from the outer circumferential wall of the transmission shaft (32).

5. The damping device (100) according to claim 4, characterized in that The follower (33) comprises a follower rod (331) and a support bearing (332), one end of the follower rod (331) is fixed to the transmission shaft (32), and the support bearing (332) is installed at the other end of the follower rod (331) and is rotatable relative to the follower rod (331).

6. The damping device (100) according to claim 5, characterized in that The outer circumferential wall of the transmission shaft (32) is provided with a threaded hole (321) corresponding to the follower (33), and one end of the follower rod (331) is screw-connected and matched with the threaded hole (321).

7. The damping device (100) according to claim 6, characterized in that The driving device is arranged at one end of the transmission mechanism.

8. The damping device (100) according to claim 7, characterized in that The transmission mechanism and the moving assembly both have first ends and second ends, the first ends of the transmission mechanism and the moving assembly are correspondingly arranged, and the second end of the transmission mechanism is adapted to make the second end of the moving assembly protrude.

9. The damping device (100) according to claim 4, characterized in that The driving device is arranged at the first end of the transmission mechanism, or is arranged adjacent to the first end of the transmission mechanism.

10. The damping device (100) according to claim 9, characterized in that The driving device comprises a driving motor (2) which comprises a stator (21) and a rotor (22), the stator (21) and the rotor (22) are coupled and matched to drive the rotor (22) to rotate, and the rotor (22) drives the damping assembly (3). The rotor (22) is connected with the damping assembly (3).

11. The damping device (100) according to any one of claims 1-10, characterized in that The driving device further comprises a rotary encoder (4) which is installed above the stator (21) and / or the rotor (22) to detect the state of the rotor (22).

12. The damping device (100) according to claim 11, characterized in that The rotor (22) is rotatably sleeved outside the stator (21).

13. The damping device (100) according to claim 11, characterized in that ​ 14. The damping device (100) according to claim 11, characterized in that ​ 15. The damping device (100) according to any one of claims 1-14, characterized in that, The damping device further comprises a housing (1), and the driving device is arranged at least partially in the housing (1); and / or The damping assembly (3) is arranged partially in the housing (1).

16. The damping device (100) according to claim 15, characterized in that The driving device is a driving motor (2), and the driving motor (2) comprises a stator (21) and a rotor (22), the stator (21) is fixed to the housing (1), and the damping assembly (3) is located below the driving motor (2).

17. The damping device (100) according to claim 16, characterized in that The driving motor (2) further comprises a stator support (23), the stator support (23) is connected with the housing (1) and used for supporting the stator (21).

18. The damping device (100) according to claim 17, characterized in that The damping assembly (3) comprises a transmission mechanism and a motion assembly, the driving device is used for driving the transmission mechanism to drive the motion assembly to move, the stator support (23) is provided with a first rotating bearing (231), the housing (1) is provided with a second rotating bearing (12), and two ends of the transmission mechanism are matched with the first rotating bearing (231) and the second rotating bearing (12) respectively.

19. The damping device (100) according to claim 18, characterized in that An inner wall of the housing (1) is provided with a supporting protrusion (13) protruding towards the stator support (23), and the second rotating bearing (12) is supported on the supporting protrusion (13) so that the end of the transmission mechanism is arranged in a spaced manner with the inner wall of the housing (1).

20. The damping device (100) according to claim 16, characterized in that The driving motor (2) further comprises a rotor support (24), and the rotor (22) is connected with the damping assembly (3) through the rotor support (24).

21. The damping device (100) according to claim 20, characterized in that The damping assembly (3) comprises a transmission mechanism and a motion assembly, the driving motor (2) is used for driving the transmission mechanism to drive the motion assembly to move, the transmission mechanism is configured as a transmission sleeve (31), and the rotor (22) is connected with the transmission sleeve (31) through the rotor support (24).

22. The damping device (100) according to claim 21, characterized in that A side of the rotor support (24) facing the rotor (22) is provided with a connecting portion (241) protruding in a radial direction, the connecting portion (241) and the rotor (22) are arranged in sequence in an axial direction, and the transmission sleeve (31) is connected with the connecting portion (241) in an axial direction and partially overlaps the connecting portion (241).

23. The damping device (100) according to claim 15, characterized in that Further comprising: A yoke (5) and a damping spring (6), one end of the damping assembly (3) protruding from the housing (1) is connected with the yoke (5), the yoke (5) is provided with a limiting portion (51), an outer peripheral wall of the housing (1) is provided with a limiting protrusion (14), and the damping spring (6) is clamped between the limiting portion (51) and the limiting protrusion (14).

24. The damping device (100) according to claim 15, characterized in that The housing (1) comprises an upper housing (1a), a lower housing (1b) and a bottom cover (1c), the upper housing (1a) and the lower housing (1b) are arranged in sequence and connected, and the bottom cover (1c) is arranged on a side of the lower housing (1b) away from the upper housing (1a).

25. A vehicle characterized by The damping device (100) according to any one of claims 1-24 is included.

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