Actuator, actuation assembly, shock absorber, suspension system and vehicle
By incorporating a buffer structure in the first and second components of the actuator, the problem of noise generated by the collision between the mover assembly and the stator assembly is solved, thereby reducing noise and improving motion stability.
Patent Information
- Application Number
- CN202423001272.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-05
AI Technical Summary
The existing mover and stator assemblies are prone to collision and noise during relative motion, resulting in a relatively high overall noise level in the actuator.
A buffer structure is provided in the first and second parts of the actuator to reduce the impact between them, prevent the sliding part and the guide part from colliding, and reduce noise.
By setting up a buffer structure, the collision noise of the mover assembly and stator assembly at extreme positions is reduced, the overall noise of the actuator is lowered, and the stability and smoothness of the motion are improved.
Smart Images
Figure CN223533291U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle technology, and in particular to actuators, actuation components, shock absorbers, suspension systems and vehicles. Background Technology
[0002] The actuator is a major component of the suspension system. The actuator typically includes a mover assembly and a stator assembly that can move relative to each other. By moving relative to each other, the distance between the vehicle body and the wheels can be adjusted, thereby adjusting the stability of the vehicle.
[0003] However, when the mover assembly and stator assembly move relative to each other, when the mover assembly moves to its limit position, the mover assembly and stator assembly will collide and make a sound, resulting in a relatively large overall noise of the actuator. Utility Model Content
[0004] The purpose of this invention is to provide an actuator, an actuation component, a shock absorber, a suspension system, and a vehicle, aiming to solve the problem that existing actuators produce noise due to collisions between the mover and stator components.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] In a first aspect, this application provides an actuator including a first component, a second component, and a buffer structure. The first component has a guide portion; the second component has a sliding portion that cooperates with the guide portion, and the second component is rotatable relative to the first component so that the second component can move along the axial direction of the first component; the buffer structure is provided in at least one of the first component and the second component, and the buffer structure is adapted to reduce the impact between the first component and the second component.
[0007] This application incorporates a buffer structure in at least one of the first and second components. The buffer structure is adapted to mitigate the impact between the first and second components, prevent collisions between the sliding part and the guide part, reduce the noise generated by the collision between the first and second components, and lower the overall noise of the actuator.
[0008] In some embodiments of this application, the second component is capable of moving along the axial direction of the first component between a first limit position and a second limit position; when the second component moves to the first limit position and / or the second limit position, the buffer structure is adapted to mitigate the impact between the first component and the second component.
[0009] Thus, when the second component moves to the first and / or second extreme positions, the buffer structure is adapted to reduce the impact between the first and second components. The buffer structure can prevent the first and second components from colliding directly when the second component is in the first and / or second extreme positions, reduce the noise generated by the collision between the first and second components, and reduce the overall noise of the actuator.
[0010] In some embodiments of this application, the guide portion includes at least one spiral groove; the sliding portion is disposed in at least one spiral groove; the sliding portion cooperates with at least one spiral groove so that the second component can move relative to the first component between a first limit position and a second limit position when rotating relative to the cylinder.
[0011] In this way, by setting a spiral groove inside the cylinder, the sliding part can move along the extension direction of the spiral groove, thus preventing the second part from shifting or becoming misaligned during the movement.
[0012] In some embodiments of this application, the spiral groove includes a first end region and a second end region opposite to each other; when the second component is in a first extreme position, the sliding part is accommodated in the first end region; when the second component is in a second extreme position, the sliding part is accommodated in the second end region.
[0013] Thus, when the second component is in the first limit position or the second limit position, the sliding part can be located in the first end region or the second end region respectively, so that the sliding part can slide between the first end region and the second end region, and the sliding part is prevented from disengaging from the spiral groove.
[0014] In some embodiments of this application, the buffer structure is located in the first component.
[0015] Therefore, compared to placing the buffer structure on the constantly moving second component, placing the buffer structure on the fixed first component can make the buffer structure more stable and prevent the buffer structure from falling off when the first and second components move relative to each other.
[0016] In some embodiments of this application, the buffer structure includes a first buffer structure; the first buffer structure is disposed in a first end region; when the second component is in a first extreme position, the sliding part contacts the first buffer structure.
[0017] In this way, by placing the first buffer structure in the first end region, when the second component is in the first extreme position, the sliding part contacts the first buffer structure. The first buffer structure can prevent the sliding part from colliding with the first end region, thus protecting the sliding part and the first end region. In some embodiments of this application, the spiral groove includes a first inner wall surface; along the direction of the spiral groove from the first end region to the second end region, the first inner wall surface is located on the side of the first end region away from the second end region; the first buffer structure is disposed on the first inner wall surface; when the second component is in the first extreme position, the first buffer structure is located between the first inner wall surface and the sliding part.
[0018] Thus, by placing the first buffer structure on the first inner wall surface, when the second component is in the first extreme position, the first buffer structure is located between the first inner wall surface and the sliding part, so that the force of the sliding part can be applied to the first buffer structure, thereby protecting the sliding part and the first wall surface.
[0019] In some embodiments of this application, the first inner wall surface is a first concave arc surface, and the surface of the first buffer structure facing the first inner wall surface is a first convex arc surface, and the first convex arc surface matches the first concave arc surface.
[0020] In this way, the force exerted by the sliding part on the first buffer can be transmitted to the first inner wall surface. By matching the first convex arc surface of the first buffer structure with the first concave arc surface of the first inner wall surface, the force exerted by the first buffer can be distributed and transmitted to the first inner wall surface, making the force on the first inner wall surface more uniform and preventing damage to the first inner wall surface due to uneven force.
[0021] In some embodiments of this application, the surface of the first buffer structure facing away from the first inner wall is a second concave arc surface, and the front end face of the sliding part is a second convex arc surface along the direction from the second end region to the first end region of the spiral groove, and the second convex arc surface matches the second concave arc surface.
[0022] In this way, matching the second concave arc surface of the first buffer structure with the second convex arc surface of the front end face of the sliding part can disperse and transmit the force exerted by the sliding part on the first buffer to the first buffer, making the force on the first buffer more uniform and preventing the first buffer from being damaged due to uneven force.
[0023] In some embodiments of this application, the first buffer structure further includes a transition surface; the transition surface connects the first convex arc surface and the second concave arc surface, and extends from one end connecting the first convex arc surface to one end connecting the second concave arc surface, with the transition surface inclined to the side of the first end region away from the second end region.
[0024] In this way, the transition surface is connected between the first convex arc surface and the second concave arc surface. The transition surface is inclined to the side of the first end region away from the second end region. When the sliding part moves to the first end region, it can slide along the transition surface into the second concave arc surface, making the movement of the sliding part smoother.
[0025] In some embodiments of this application, the end of the first buffer structure away from the central axis of the first component is the first end, and the end facing the central axis of the first component is the second end; the thickness of the first end along the extension direction of the spiral groove is greater than the thickness of the second end along the extension direction of the spiral groove.
[0026] Thus, by making the thickness of the first end along the extension direction of the spiral groove greater than the thickness of the second end along the extension direction of the spiral groove, the first and second ends of the first buffer structure can fit more tightly with the sliding part, and the force can be more uniform, thus avoiding damage to the first buffer component due to uneven force.
[0027] In some embodiments of this application, the thickness of the first buffer structure gradually decreases from the first end to the second end along the extension direction of the spiral groove.
[0028] In this way, by gradually reducing the thickness of the first buffer structure along the extension direction of the spiral groove, the fit between the first buffer structure and the sliding part can be made tighter, the force can be more uniform, and the first buffer component can be prevented from being damaged due to uneven force.
[0029] In some embodiments of this application, the buffer structure further includes a second buffer structure; the second buffer structure is disposed in the second end region; when the second component is in the second limit position, the sliding part contacts the second buffer structure.
[0030] Thus, by placing the second buffer structure on the second inner wall surface, when the second component is in the second extreme position, the second buffer structure is located between the second inner wall surface and the sliding part, so that the force of the sliding part can be applied to the second buffer structure, thereby protecting the sliding part and the second wall surface.
[0031] In some embodiments of this application, the first component includes a cylinder; at least one helical groove is disposed in the cylinder and extends along the axial direction of the cylinder; at least a portion of the second component is housed within the cylinder and is rotatable relative to the cylinder.
[0032] Thus, at least a portion of the second component is housed within the cylinder, which can limit the second component and prevent it from shifting during movement.
[0033] In some embodiments of this application, the cylinder is further provided with a notch that extends from the second end region toward a direction away from the first end region and penetrates the end face of the cylinder.
[0034] In this way, by setting a notch in the cylinder and penetrating the end face of the cylinder, the sliding part can be installed into the spiral groove through the notch, making the installation of the sliding part more convenient.
[0035] In some embodiments of this application, the second buffer structure includes a main body and a filling part that are fixedly connected; the main body is located in the second end region; when the second component is in the second limit position, the sliding part contacts the main body; the filling part is embedded in the notch.
[0036] Thus, the second buffer structure includes a fixedly connected main body and a filling part. The main body can buffer the sliding part, and the filling part is embedded in the notch to prevent the sliding part from sliding out of the notch, making the sliding of the sliding part more stable.
[0037] In some embodiments of this application, the surface of the second buffer structure facing the inner region of the cylinder is a concave arc surface.
[0038] In this way, the second buffer structure can be matched with the shape of the cylinder, preventing the sliding part from being obstructed by the first buffer structure during movement.
[0039] In some embodiments of this application, at least one spiral groove includes a first spiral groove and a second spiral groove; both the first spiral groove and the second spiral groove are disposed on the cylinder and are arranged at intervals along the circumference of the cylinder; the sliding part includes a first sliding part and a second sliding part, the first sliding part is disposed on the first spiral groove and the second sliding part is disposed on the second spiral groove; the first sliding part and the second sliding part respectively cooperate with the first spiral groove and the second spiral groove so that when the second component rotates relative to the cylinder, it can move relative to the first component between a first limit position and a second limit position.
[0040] In this way, by engaging the first sliding part and the second sliding part with the first spiral groove and the second spiral groove respectively, the first sliding part can slide along the first spiral groove and the second sliding part can slide along the second spiral groove, resulting in a more uniform force on the second component and a more stable movement of the second component.
[0041] In some embodiments of this application, the portion of the cylinder located between the first spiral groove and the second spiral groove is the first cylinder portion; the first cylinder portion is provided with weight reduction holes.
[0042] In this way, weight-reducing holes are provided in the first cylindrical section, which can reduce the overall weight of the cylindrical body and facilitate the lightweight design of the actuator.
[0043] In some embodiments of this application, the rigidity of the buffer structure is less than the rigidity of the first component, and the rigidity of the buffer structure is less than the rigidity of the second component.
[0044] Thus, the rigidity of the buffer structure is less than that of the first component, preventing the first component from being damaged when it collides with the buffer structure. The rigidity of the buffer structure is also less than that of the second component, preventing the second component from being damaged when it collides with the buffer structure.
[0045] In a second aspect of this application, an actuation assembly is provided for an actuator, comprising a combination of a first component and a buffer structure disposed on the first component.
[0046] It is understood that since the actuation component provided in this application is used for an actuator, including a combination of a first component and a buffer structure, both can solve the same problem and achieve the same effect, and will not be described in detail here.
[0047] In some embodiments of this application, the first component is provided with a guide portion; the guide portion includes at least one spiral groove, the spiral groove including opposing first end regions and second end regions; a buffer structure is provided in at least one of the first end regions and the second end regions.
[0048] Thus, by placing the buffer structure in at least one of the first end region and the second end region, the buffer structure can prevent the guide part and the sliding part from colliding when the sliding part moves to the first end region and / or the second end region, thereby reducing the noise when the actuator is working.
[0049] In some embodiments of this application, the buffer structure includes a first buffer structure and a second buffer structure; the first buffer structure is disposed in one of the first end region and the second end region; and the second buffer structure is disposed in the other of the first end region and the second end region.
[0050] Thus, by placing the first buffer structure and the second buffer structure in the first end region and the second end region respectively, the buffer structure can prevent the guide part and the sliding part from colliding when the sliding part moves to the first end region and the second end region, thereby reducing the noise when the actuator is working.
[0051] In a third aspect of this application, a shock absorber is provided, including any of the aforementioned actuators or actuation components.
[0052] It is understood that since the shock absorber provided in this application includes any of the above-mentioned actuators or actuating components, both can solve the same problem and achieve the same effect, and this application will not elaborate on them here.
[0053] In a fourth aspect of this application, a suspension system is provided, including any of the aforementioned actuators or actuation components or shock absorbers.
[0054] It is understood that since the suspension system provided in this application includes the actuators or actuation components or shock absorbers as described above, both can solve the same problem and achieve the same effect, and will not be described in detail here.
[0055] In some embodiments of this application, the suspension system further includes a drive device for driving the first component to rotate relative to the second component.
[0056] In a fifth aspect of this application, a vehicle is provided that includes any of the actuators or actuation components, shock absorbers, or suspension systems described above.
[0057] It is understood that since the vehicle provided in this application includes the actuators or actuation components or shock absorbers or suspension systems as described above, both can solve the same problem and achieve the same effect, and will not be described in detail here. Attached Figure Description
[0058] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0059] Figure 1 A structural schematic diagram of the vehicle provided by this utility model;
[0060] Figure 2 A schematic diagram of the suspension system provided by this utility model;
[0061] Figure 3 A cross-sectional view of the suspension system provided by this utility model;
[0062] Figure 4 Left side view of the actuator provided by this utility model;
[0063] Figure 5 Right side view of the actuator provided by this utility model;
[0064] Figure 6 A cross-sectional view of the actuator provided by this utility model;
[0065] Figure 7 A schematic diagram of the internal view structure of the first buffer structure provided by this utility model;
[0066] Figure 8 A schematic diagram of the external view of the first buffer structure provided by this utility model;
[0067] Figure 9A schematic diagram of the first convex arc surface structure of the first buffer structure provided by this utility model;
[0068] Figure 10 Side view of the first buffer structure provided by this utility model;
[0069] Figure 11 This is a schematic diagram of the installation of the second buffer structure provided by this utility model;
[0070] Figure 12 A schematic diagram of the notch provided for this utility model;
[0071] Figure 13 A schematic diagram of the internal view structure of the second buffer structure provided by this utility model;
[0072] Figure 14 This is a schematic diagram of the external view of the second buffer structure provided by this utility model.
[0073] Reference numerals: 1000, vehicle; 1, suspension system; 2, body; 3, wheel; 100, actuator; 10, first component; 11, guide; 20, second component; 21, sliding part; 30, buffer structure; 12, cylinder; 111, spiral groove; 31, first buffer structure; 1111, first inner wall surface; 311, first convex arc surface; 312, second concave arc surface; 313, transition surface; 121, notch; 32, second buffer structure; 321, main body; 322, filling part; 1112, first spiral groove; 1113, second spiral groove; 122, weight reduction hole. Detailed Implementation
[0074] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0075] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or relative positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in actual application, provided that the relative positional relationship shown in the accompanying drawings is satisfied.
[0076] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0077] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "communication" 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 direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0078] In embodiments of this invention, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.
[0079] In this embodiment of the invention, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in this embodiment of the invention should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.
[0080] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0081] like Figure 1 As shown, this application provides a vehicle 1000. The vehicle 1000 can be a pure electric vehicle 1000, a hybrid electric vehicle 1000, a plug-in hybrid electric vehicle 1000, a range-extended electric vehicle 1000, a gasoline-powered vehicle, etc. The vehicle 1000 can also be a sedan, truck, bus, lorry, trailer, etc.
[0082] like Figure 1As shown, vehicle 1000 includes a body 2 and wheels 3. The body 2 is used for passengers to ride in and for carrying goods, and the wheels 3 are installed under the body 2 to support the body 2 and to roll on the road surface so that vehicle 1000 can move.
[0083] like Figure 1 As shown, the vehicle 1000 also includes a suspension system 1. The suspension system 1 is located between the body 2 and the wheels 3, and is used to transmit force and torque between the body 2 and the wheels 3, as well as to buffer the impact force on the body 2 during the driving of the vehicle 1000, so as to improve the ride or driving comfort.
[0084] Among them, the suspension system 1 can be a non-independent suspension, an independent suspension, or an active suspension.
[0085] In some embodiments of this application, the suspension system 1 is an active suspension. The stiffness and damping performance of the active suspension are dynamically and adaptively adjusted according to the driving conditions of the vehicle 1000, such as the motion state of the vehicle 1000 and the road conditions, so that the suspension system 1 is always in the optimal damping state.
[0086] like Figure 1 and Figure 2 As shown, the suspension system 1 may include an actuator 100 and a roof. The roof is connected to the actuator 100 and to the vehicle body 2. The actuator 100 is also connected to the wheels 3. When the actuator 100 operates, it can adjust the distance between the roof and the wheels 3, thereby adjusting the distance between the vehicle body 2 and the wheels 3, so that the vehicle 1000 can travel more smoothly when turning and on rough roads.
[0087] In some examples, the suspension system 1 also includes a shock absorber, which comprises a lower support and an elastic element. The lower support is connected to the actuator 100. The elastic element is disposed between the lower support and the top cover.
[0088] The actuator 100 may be a cylindrical cam actuator 100, but this application does not limit it.
[0089] This application provides an actuator, such as Figure 3 and Figure 4 As shown, the device includes a first component 10, a second component 20, and a buffer structure 30. The first component 10 is provided with a guide portion 11; the second component 20 is provided with a sliding portion 21, which cooperates with the guide portion 11. The second component 20 is rotatable relative to the first component 10 so that the second component 20 can move along the axial direction of the first component 10; the buffer structure 30 is provided on at least one of the first component 10 and the second component 20, and the buffer structure 30 is adapted to reduce the impact between the first component 10 and the second component 20.
[0090] The buffer structure 30 can be provided in the first component 10. When the second component 20 moves to the first limit position or the second limit position, the sliding part 21 can contact the buffer structure 30 provided in the first component 10.
[0091] The buffer structure 30 can be provided in the second component 20. When the second component 20 moves to the first limit position or the second limit position, the sliding part 21 can contact the buffer structure 30 provided in the second component 20.
[0092] This application provides a buffer structure 30 in at least one of the first component 10 and the second component 20. The buffer structure 30 is suitable for mitigating the impact between the first component 10 and the second component 20, preventing the sliding part 21 and the guide part 11 from colliding, reducing the noise generated by the collision between the first component 10 and the second component 20, and reducing the overall noise of the actuator 100.
[0093] In some embodiments of this application, the suspension system 1 further includes a drive device for driving the first component to rotate relative to the second component.
[0094] The driving device can be an electric motor, motor, etc., and this application does not limit it.
[0095] In some embodiments of this application, such as Figure 4 and Figure 5 As shown, the first component 10 includes a cylinder 12; at least a portion of the second component 20 is housed within the cylinder 12 and is rotatable relative to the cylinder 12.
[0096] Thus, at least a portion of the second component 20 is housed within the cylinder 12, which can limit the second component 20 and prevent it from shifting during movement.
[0097] In some embodiments of this application, the second component 20 is capable of moving along the axial direction of the first component 10 between a first limit position and a second limit position; when the second component 20 moves to the first limit position and / or the second limit position, the buffer structure 30 is adapted to mitigate the impact between the first component 10 and the second component 20.
[0098] Thus, when the second component 20 moves to the first limit position and / or the second limit position, the buffer structure 30 is adapted to reduce the impact between the first component 10 and the second component 20. The buffer structure 30 can prevent the second component 20 from directly colliding with the first component 10 and the second component 20 when it is in the first limit position and / or the second limit position, reduce the sound generated by the collision between the first component and the second component, and reduce the overall noise of the actuator.
[0099] In some embodiments of this application, such as Figure 4 and Figure 5 As shown, the guide portion 11 includes at least one spiral groove 111; the sliding portion 21 is disposed in at least one spiral groove 111; the sliding portion 21 cooperates with at least one spiral groove 111 so that when the second component 20 rotates relative to the cylinder 12, it can move relative to the first component 10 between a first limit position and a second limit position.
[0100] At least one spiral groove 111 may be provided on the cylinder 12 and extend along the axial direction of the cylinder 12.
[0101] The spiral groove 111 can penetrate the cylinder 12, or it can be provided on the inner surface of the cylinder 12. This application does not limit this.
[0102] In this way, by providing a spiral groove 111 inside the cylinder 12, the sliding part 21 can move along the extension direction of the spiral groove 111, thus preventing the second part 20 from shifting or becoming misaligned during movement.
[0103] In some embodiments of this application, the sliding part 21 may include a first bearing and a support rod. The first bearing is disposed at the end of the support rod, and the sliding part 21 slides in cooperation with the spiral groove 111 through the first bearing.
[0104] This makes the fit between the sliding part 21 and the spiral groove 111 smoother.
[0105] In some embodiments of this application, the spiral groove 111 includes a first end region and a second end region opposite to each other; when the second component 20 is in the first extreme position, the sliding part 21 is accommodated in the first end region; when the second component 20 is in the second extreme position, the sliding part 21 is accommodated in the second end region.
[0106] The first end region can be the upper end of the spiral groove 111, and the second end region can be the lower end of the spiral groove 111. This application does not limit this.
[0107] Thus, when the second component 20 is in the first limit position or the second limit position, the sliding part 21 can be located in the first end region or the second end region respectively, so that the sliding part 21 can slide between the first end region and the second end region, and prevent the sliding part 21 from disengaging from the spiral groove 111.
[0108] In some embodiments of this application, the buffer structure 30 is disposed on the first component 10.
[0109] Thus, compared to placing the buffer structure 30 on the constantly moving second component 20, placing the buffer structure 30 on the fixed first component 10 can make the buffer structure 30 more stable and prevent the buffer structure 30 from falling off when the first component 10 and the second component 20 move relative to each other.
[0110] In some embodiments of this application, such as Figure 4 , Figure 5 and Figure 6 As shown, the buffer structure 30 includes a first buffer structure 31; the first buffer structure 31 is disposed in the first end region; when the second component 20 is in the first limit position, the sliding part 21 contacts the first buffer structure 31.
[0111] The first buffer structure 31 can be interference-fitted with the first end region, and the first buffer structure 31 can also be connected to the first buffer area, such as by gluing, snap-fitting or bolting, etc. This application does not limit this.
[0112] In this way, the first buffer structure 31 is located in the first end region. When the second component 20 is in the first extreme position, the sliding part 21 contacts the first buffer structure 31. The first buffer structure 31 can prevent the sliding part 21 from colliding with the first end region and protect the sliding part 21 and the first end region.
[0113] In some embodiments of this application, such as Figure 5 and Figure 6 As shown, the spiral groove 111 includes a first inner wall surface 1111; along the direction from the first end region to the second end region of the spiral groove 111, the first inner wall surface 1111 is located on the side of the first end region away from the second end region; a first buffer structure 31 is disposed on the first inner wall surface 1111; when the second component 20 is in the first limit position, the first buffer structure 31 is located between the first inner wall surface 1111 and the sliding part 21.
[0114] In the direction from the first end region to the second end region along the spiral groove 111, the first inner wall surface 1111 is located on the side of the first end region away from the second end region, which can be the front side of the first end region.
[0115] Thus, the first buffer structure 31 is disposed on the first inner wall surface 1111. When the second component 20 is in the first extreme position, the first buffer structure 31 is located between the first inner wall surface 1111 and the sliding part 21, so that the force of the sliding part 21 can be applied to the first buffer structure 31, thereby protecting the sliding part 21 and the first wall surface 1111.
[0116] In some embodiments of this application, such as Figure 5 , Figure 6 and Figure 7As shown, the first inner wall surface 1111 is a first concave arc surface, and the surface of the first buffer structure 31 facing the first inner wall surface 1111 is a first convex arc surface 311, which matches the first concave arc surface.
[0117] The first concave arc surface can be a minor arc, a major arc, or a semi-arc, and the corresponding first convex arc surface 311 can also be a minor arc, a major arc, or a semi-arc. This application does not limit this.
[0118] In this way, the force exerted by the sliding part 21 on the first buffer member can be transmitted to the first inner wall surface 1111. By matching the first convex arc surface 311 of the first buffer structure 31 with the first concave arc surface of the first inner wall surface 1111, the force exerted by the first buffer member can be distributed and transmitted to the first inner wall surface 1111, making the force on the first inner wall surface 1111 more uniform and preventing damage to the first inner wall surface 1111 due to uneven force.
[0119] In some embodiments of this application, such as Figure 6 and Figure 7 As shown, the surface of the first buffer structure 31 facing away from the first inner wall 1111 is the second concave arc surface 312. Along the direction from the second end region to the first end region along the spiral groove 111, the front end face of the sliding part 21 is the second convex arc surface, and the second convex arc surface matches the second concave arc surface 312.
[0120] The first concave arc surface can be a minor arc, a major arc, or a semi-arc, and the corresponding first convex arc surface 311 can also be a minor arc, a major arc, or a semi-arc. This application does not limit this.
[0121] In this way, by matching the second concave arc surface 312 of the first buffer structure 31 with the second convex arc surface of the front end face of the sliding part 21, the force exerted by the sliding part 21 on the first buffer can be dispersed and transmitted to the first buffer, making the force on the first buffer more uniform and preventing the first buffer from being damaged due to uneven force.
[0122] In some embodiments of this application, such as Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the first buffer structure 31 also includes a transition surface 313; the transition surface 313 is connected between the first convex arc surface 311 and the second concave arc surface 312, and from one end connecting the first convex arc surface 311 to one end connecting the second concave arc surface 312, the transition surface 313 is inclined toward the side of the first end region away from the second end region.
[0123] Wherein, the side of the first end region away from the second end region is the direction along the spiral groove 111 from the second end to the first end, and the first inner wall surface 1111 is located on the front side of the first end region.
[0124] In this way, the transition surface 313 is connected between the first convex arc surface 311 and the second concave arc surface 312. The transition surface 313 is inclined to the side of the first end region away from the second end region. When the sliding part 21 moves to the first end region, it can slide along the transition surface 313 into the second concave arc surface 312, making the movement of the sliding part 21 smoother.
[0125] In some embodiments of this application, such as Figure 5 , Figure 6 , Figure 7 and Figure 9 As shown, along the axial direction of the cylinder 12, transition surfaces 313 are provided at both the upper and lower ends between the first convex arc surface 311 and the second concave arc surface 312.
[0126] In this way, when the sliding part 21 moves to the first end region, it can slide along the transition surface 313 into the second concave arc surface 312, avoiding obstruction on one side of the sliding part 21 and making the movement of the sliding part 21 smoother.
[0127] In addition, along the axial direction of the cylinder 12, a transition surface 313 may be provided only at the upper end between the first convex arc surface 311 and the second concave arc surface 312, or a transition surface 313 may be provided only at the lower end between the first convex arc surface 311 and the second concave arc surface 312. This application does not limit this.
[0128] In some embodiments of this application, the transition surface 313 may be a part of the second concave arc surface 312, that is, the first convex arc surface 311 is connected to the second concave arc surface 312, and the first concave arc surface is tangent to the groove wall of the spiral groove 111.
[0129] In this way, when the sliding part 21 moves to the first end region, it can slide directly into the second concave arc surface 312, making the movement of the sliding part 21 smoother.
[0130] In some embodiments of this application, such as Figure 5 , Figure 6 , Figure 7 and Figure 10 As shown, the end of the first buffer structure 31 that is away from the central axis of the cylinder 12 is the first end, and the end that is towards the central axis of the cylinder 12 is the second end; the thickness of the first end along the extension direction of the spiral groove 111 is greater than the thickness of the second end along the extension direction of the spiral groove 111.
[0131] Thus, by making the thickness of the first end along the extension direction of the spiral groove 111 greater than the thickness of the second end along the extension direction of the spiral groove 111, the first and second ends of the first buffer structure 31 can fit more tightly with the sliding part 21, and the force can be more uniform, thus avoiding damage to the first buffer due to uneven force.
[0132] In some embodiments of this application, the thickness of the first buffer structure 31 gradually decreases along the extension direction of the spiral groove 111 from the first end to the second end.
[0133] In this way, by gradually reducing the thickness of the first buffer structure 31 along the extension direction of the spiral groove 111, the first buffer structure 31 can fit more tightly with the sliding part 21, and the force can be more uniform, thus avoiding damage to the first buffer component due to uneven force.
[0134] In some embodiments of this application, such as Figure 4 , Figure 11 and Figure 12 As shown, the buffer structure 30 also includes a second buffer structure 32; the second buffer structure 32 is disposed in the second end region; when the second component 20 is in the second limit position, the sliding part 21 contacts the second buffer structure 32.
[0135] Thus, by placing the second buffer structure 32 on the second inner wall surface, when the second component 20 is in the second extreme position, the second buffer structure 32 is located between the second inner wall surface and the sliding part 21, so that the force of the sliding part 21 can be applied to the second buffer structure 32, thereby protecting the sliding part 21 and the second wall surface.
[0136] In some embodiments of this application, such as Figure 5 , Figure 11 and Figure 12 As shown, the cylinder 12 is also provided with a notch 121, which extends from the second end region in a direction away from the first end region and penetrates the end face of the cylinder 12.
[0137] In this way, by providing a notch 121 through the end face of the cylinder 12, the sliding part 21 can be installed into the spiral groove 111 through the notch 121, making the installation of the sliding part 21 more convenient.
[0138] In some embodiments of this application, such as Figure 11 , Figure 12 and Figure 14 As shown, the second buffer structure 32 includes a main body 321 and a filling part 322 that are fixedly connected; the main body 321 is located in the second end region; when the second component 20 is in the second limit position, the sliding part 21 contacts the main body 321; the filling part 322 is embedded in the notch 121.
[0139] It should be noted that the main body 321 has the same function as the first buffer structure 31, and can be referred to the description of the first buffer structure 31. This application will not repeat it here.
[0140] The main body 321 and the filling part 322 can be glued or snapped together, and the main body 321 and the filling part 322 can also be an integral structure. This application does not limit this.
[0141] Thus, the second buffer structure 32 includes a main body 321 and a filling part 322 that are fixedly connected. The main body 321 can buffer the sliding part 21. The filling part 322 is embedded in the notch 121 to prevent the sliding part 21 from sliding out of the notch 121, making the sliding of the sliding part 21 more stable.
[0142] In some embodiments of this application, such as Figure 5 , Figure 11 and Figure 13 As shown, the surface of the second buffer structure 32 facing the inner region of the cylinder 12 is a concave arc surface.
[0143] In this way, the shape of the second buffer structure 32 can be matched with that of the cylinder 12, and the inner wall surface of the cylinder 12 can be smoothly designed to avoid the sliding part 21 being obstructed by the first buffer structure 31 during the movement.
[0144] The surface of the second buffer structure 32 away from the inner area of the cylinder 12 can be a convex arc surface, so that both the inner and outer walls of the second buffer structure 32 and the cylinder 12 are designed to be smooth.
[0145] In some embodiments of this application, such as Figure 11 and Figure 12 As shown, at least one spiral groove 111 includes a first spiral groove 1112 and a second spiral groove 1113; the first spiral groove 1112 and the second spiral groove 1113 are both provided on the cylinder 12 and are arranged at intervals along the circumference of the cylinder 12; the sliding part 21 includes a first sliding part 211 and a second sliding part 212, the first sliding part 211 is provided on the first spiral groove 1112 and the second sliding part 212 is provided on the second spiral groove 1113; the first sliding part 211 and the second sliding part 212 cooperate with the first spiral groove 1112 and the second spiral groove 1113 respectively, so that when the second component 20 rotates relative to the cylinder 12, it can move relative to the first component 10 between a first limit position and a second limit position.
[0146] The first spiral groove 1112 and the second spiral groove 1113 are both provided on the cylinder 12 and are arranged at intervals along the circumference of the cylinder 12, that is, the first spiral groove 1112 and the second spiral groove 1113 can also be a double spiral structure.
[0147] In this way, by engaging the first sliding part 211 and the second sliding part 212 with the first spiral groove 1112 and the second spiral groove 1113 respectively, the first sliding part 211 can slide along the first spiral groove 1112 and the second sliding part 212 can slide along the second spiral groove 1113, the force on the second component 20 is more uniform, and the movement of the second component 20 is more stable.
[0148] In order to make the movement of the second component 20 smoother, the first spiral groove 1112 and the second spiral groove 1113 can be symmetrically arranged about the axis of the cylinder 12.
[0149] In some embodiments of this application, such as Figure 11 and Figure 12 As shown, the portion of the cylinder 12 located between the first spiral groove 1112 and the second spiral groove 1113 is the first cylinder 12 portion; the first cylinder 12 portion is provided with a weight reduction hole 122.
[0150] In this way, a weight reduction hole 122 is provided in the first cylinder 12 section, which can reduce the overall weight of the cylinder 12 and facilitate the lightweight design of the actuator 100.
[0151] In some embodiments of this application, the rigidity of the buffer structure 30 is less than the rigidity of the first component 10, and the rigidity of the buffer structure 30 is less than the rigidity of the second component 20.
[0152] The material of the buffer component can be rubber, plastic or composite material, etc., and this application does not limit it.
[0153] Thus, the rigidity of the buffer structure 30 is less than that of the first component 10, preventing the first component 10 from being damaged when it collides with the buffer structure 30. The rigidity of the buffer structure 30 is less than that of the second component 20, preventing the second component 20 from being damaged when it collides with the buffer structure 30.
[0154] This application also provides an actuation assembly for an actuator, including a combination of a first component 10 and a buffer structure 30, wherein the buffer structure 30 is disposed on the first component 10.
[0155] It is understood that since the actuation components provided in this application are for actuators, including the combination of the first component 10 and the buffer structure 30, the two can solve the same problem and achieve the same effect, and will not be described in detail here.
[0156] In some embodiments of this application, the first component 10 is provided with a guide portion 11; the guide portion 11 includes at least one spiral groove 111, the spiral groove 111 includes opposing first end regions and second end regions; the buffer structure 30 is provided in at least one of the first end regions and the second end regions.
[0157] Thus, by placing the buffer structure 30 in at least one of the first end region and the second end region, the buffer structure 30 can prevent the guide portion 11 and the sliding portion 21 from colliding when the sliding portion 21 moves to the first end region and / or the second end region, thereby reducing the noise when the actuator 100 is working.
[0158] In some embodiments of this application, the buffer structure 30 includes a first buffer structure 31 and a second buffer structure 32; the first buffer structure 31 is disposed in one of the first end region and the second end region; the second buffer structure 32 is disposed in the other of the first end region and the second end region.
[0159] Thus, by placing the first buffer structure 31 and the second buffer structure 32 in the first end region and the second end region respectively, the buffer structure 30 can prevent the guide part 11 and the sliding part 21 from colliding when the sliding part 21 moves to the first end region and the second end region, thereby reducing the noise when the actuator 100 is working.
[0160] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. An actuator, characterized in that, include: The first component (10) is provided with a guide portion (11); The second component (20) is provided with a sliding part (21), which cooperates with the guide part (11). The second component (20) is rotatable relative to the first component (10) so that the second component (20) can move along the axial direction of the first component (10). A buffer structure (30) is provided in at least one of the first component (10) and the second component (20), and the buffer structure (30) is adapted to mitigate the impact between the first component (10) and the second component (20).
2. The actuator according to claim 1, characterized in that, The second component (20) is capable of moving between a first limit position and a second limit position along the axial direction of the first component (10); When the second component (20) moves to the first limit position and / or the second limit position, the buffer structure (30) is adapted to mitigate the impact between the first component (10) and the second component (20).
3. The actuator according to claim 2, characterized in that, The guide portion (11) includes at least one spiral groove (111), The sliding part (21) is provided in the at least one spiral groove (111); The sliding part (21) cooperates with the at least one spiral groove (111) so that the second component (20) can move relative to the first component (10) between a first limit position and a second limit position when rotating relative to the first component (10).
4. The actuator according to claim 3, characterized in that, The spiral groove (111) includes opposing first end regions and second end regions; When the second component (20) is in the first extreme position, the sliding part (21) is accommodated in the first end region; When the second component (20) is in the second limit position, the sliding part (21) is accommodated in the second end region.
5. The actuator according to claim 4, characterized in that, The buffer structure (30) is located on the first component (10).
6. The actuator according to claim 5, characterized in that, The buffer structure (30) includes a first buffer structure (31); The first buffer structure (31) is located in the first end region; When the second component (20) is in the first limit position, the sliding part (21) contacts the first buffer structure (31).
7. The actuator according to claim 6, characterized in that, The spiral groove (111) includes a first inner wall surface (1111); along the direction of the spiral groove (111) from the first end region to the second end region, the first inner wall surface (1111) is located on the side of the first end region away from the second end region; the first buffer structure (31) is disposed on the first inner wall surface (1111).
8. The actuator according to claim 7, characterized in that, The first inner wall surface (1111) is a first concave arc surface, and the surface of the first buffer structure (31) facing the first inner wall surface (1111) is a first convex arc surface (311), which matches the first concave arc surface.
9. The actuator according to claim 8, characterized in that, The surface of the first buffer structure (31) facing away from the first inner wall surface (1111) is a second concave arc surface (312). Along the direction from the second end region to the first end region of the spiral groove (111), the front end face of the sliding part (21) is a second convex arc surface, and the second convex arc surface matches the second concave arc surface (312).
10. The actuator according to claim 9, characterized in that, The first buffer structure (31) also includes a transition surface (313); The transition surface (313) is connected between the first convex arc surface (311) and the second concave arc surface (312), and extends from one end connected to the first convex arc surface (311) to one end connected to the second concave arc surface (312). The transition surface (313) is inclined toward the side of the first end region away from the second end region.
11. The actuator according to claim 6, characterized in that, The end of the first buffer structure (31) that is away from the central axis of the first component (10) is the first end, and the end that is towards the central axis of the first component (10) is the second end; The thickness of the first end along the extension direction of the spiral groove (111) is greater than the thickness of the second end along the extension direction of the spiral groove (111).
12. The actuator according to claim 11, characterized in that, From the first end to the second end, the thickness of the first buffer structure (31) gradually decreases along the extension direction of the spiral groove (111).
13. The actuator according to claim 6, characterized in that, The buffer structure (30) further includes a second buffer structure (32); The second buffer structure (32) is located in the second end region; When the second component (20) is in the second limit position, the sliding part (21) contacts the second buffer structure (32).
14. The actuator according to claim 13, characterized in that, The first component (10) includes a cylindrical body (12); at least one spiral groove (111) is provided on the cylindrical body (12) and extends along the axial direction of the cylindrical body (12); The cylinder (12) is adapted to accommodate at least a portion of the second component (20) and to make the second component (20) rotatable relative to the cylinder (12).
15. The actuator according to claim 14, characterized in that, The cylinder (12) is also provided with a notch (121), which extends from the second end region in a direction away from the first end region and penetrates the end face of the cylinder (12).
16. The actuator according to claim 15, characterized in that, The second buffer structure (32) includes a main body (321) and a filling part (322) that are fixedly connected; The main body (321) is located in the second end region; when the second component (20) is in the second extreme position, the sliding part (21) contacts the main body (321); The filling part (322) is embedded in the notch (121).
17. The actuator according to claim 14, characterized in that, The surface of the second buffer structure (32) facing the interior region of the cylinder (12) is a concave arc surface.
18. The actuator according to any one of claims 3-17, characterized in that, The first component (10) includes a cylindrical body (12); The at least one helical groove (111) includes a first helical groove (1112) and a second helical groove (1113); The first spiral groove (1112) and the second spiral groove (1113) are both provided on the cylinder (12) and are arranged at intervals along the circumference of the cylinder (12); The sliding part (21) includes a first sliding part (211) and a second sliding part (212), the first sliding part (211) is disposed in the first spiral groove (1112), and the second sliding part (212) is disposed in the second spiral groove (1113); The first sliding part (211) and the second sliding part (212) cooperate with the first spiral groove (1112) and the second spiral groove (1113) respectively, so that the second component (20) can move relative to the first component (10) between the first limit position and the second limit position when rotating relative to the cylinder (12).
19. The actuator according to claim 18, characterized in that, The portion of the cylinder (12) located between the first spiral groove (1112) and the second spiral groove (1113) is the first cylinder (12) portion; The first cylindrical body (12) is provided with a weight reduction hole (122).
20. The actuator according to any one of claims 1-17, characterized in that, The rigidity of the buffer structure (30) is less than that of the first component (10), and the rigidity of the buffer structure (30) is less than that of the second component (20).
21. An actuation component, characterized in that, An actuator (100) according to any one of claims 1-20 comprises: The combination of the first component (10) and the buffer structure (30) according to any one of claims 1-20, wherein the buffer structure (30) is disposed on the first component (10).
22. The actuation component according to claim 21, characterized in that, The first component (10) is provided with a guide portion (11); the guide portion (11) includes at least one spiral groove (111), the spiral groove (111) includes a first end region and a second end region opposite to each other; the buffer structure (30) is provided in at least one of the first end region and the second end region.
23. The actuation component according to claim 22, characterized in that, The buffer structure (30) includes: First buffer structure (31) and second buffer structure (32); The first buffer structure (31) is disposed in one of the first end region and the second end region; the second buffer structure (32) is disposed in the other of the first end region and the second end region.
24. A shock absorber, characterized in that, include: The actuator (100) according to any one of claims 1-20 or the actuation component according to any one of claims 21-23.
25. A suspension system, characterized in that, include: The actuator (100) according to any one of claims 1-20, or the actuation component according to any one of claims 21-23, or the shock absorber according to claim 24.
26. The suspension system according to claim 25, characterized in that, Also includes: A driving device for driving the first component (10) to rotate relative to the second component (20).
27. A vehicle, characterized in that, It includes the actuator (100) according to any one of claims 1-20, the actuation component according to any one of claims 21-23, the shock absorber according to claim 24, or the suspension system (1) according to any one of claims 25-26.