Actuator, suspension system and vehicle

Abstract

The utility model discloses an actuator, a suspension system and a vehicle, relates to the technical field of automobiles, and aims to solve the problem that a center rod and a guide shaft of the actuator are easily matched and deviated due to magnetic deviation force. The actuator comprises a first assembly and a second assembly which can move relatively in the axial direction of the actuator, the first assembly is provided with a first guide structure and a second guide structure, the first guide structure is located on the outer side face of the second guide structure, the second assembly is provided with a guide rod, and when the first assembly and the second assembly move relatively, the guide rod is located on the guide rod. The first guide structure is in guide fit with the outer circumferential face of the guide rod, and the second guide structure is in guide fit with the inner circumferential face of the guide rod.

Description

Technical Field

[0001] This application relates to the field of automotive technologies, and in particular, to an actuator, a suspension system, and a vehicle. Background Art

[0002] An actuator, also known as a shaker or a solenoid, is a device that generates a magnetic field after being powered on, and then controls the armature to achieve an ideal torque and displacement. The working principle of the actuator is based on the principle of electromagnetic induction. When the coil is powered on, a magnetic field is generated, which then generates an attractive force on ferromagnetic materials (such as the armature), causing it to move and be converted into mechanical energy. In this process, electrical energy is converted into mechanical energy to control the motion state of the load.

[0003] The actuators in the related art generally include a stator, a mover, and a lower fork arm that are coaxially arranged. Among them, the stator includes a central rod and a stator core surrounding the central rod, and a circular groove is provided at the bottom of the central rod. A guide shaft is provided on the lower fork arm, and the guide shaft can be in clearance fit with the circular groove.

[0004] However, this actuator is only limited by the guide shaft and the circular groove, and its stability is poor. It is easy to cause the offset of the cooperation between the central rod and the guide shaft due to the magnetic bias force, which will cause significant wear between the circular groove of the central rod and the top of the guide shaft, thereby affecting the service life of the actuator. Summary of the Utility Model

[0005] This application provides an actuator, a suspension system, and a vehicle, which are used to solve the problem that the central rod and the guide shaft of the actuator are prone to offset due to magnetic bias force.

[0006] To achieve the above object, this application adopts the following technical solutions:

[0007] In a first aspect, this application provides an actuator, including a first component and a second component that can move relative to each other along the axial direction of the actuator. The first component is provided with a first guiding structure and a second guiding structure. The first guiding structure is located on the outer side of the second guiding structure. The second component is provided with a guiding rod. When the first component and the second component move relative to each other, the first guiding structure is in guiding cooperation with the outer peripheral surface of the guiding rod, and the second guiding structure is in guiding cooperation with the inner peripheral surface of the guiding rod.

[0008] The actuator provided by the embodiment of the present application is provided with a second guiding structure on the first component and a first guiding structure on the outer side of the second guiding structure, and a guiding rod is provided on the second component. When the first component and the second component move relative to each other, the first guiding structure is in guiding cooperation with the outer peripheral surface of the guiding rod, and the second guiding structure is in guiding cooperation with the inner peripheral surface of the guiding rod. In this way, the first component and the second component are in guiding cooperation through the first guiding structure and the outer peripheral surface of the guiding rod, and are in guiding cooperation through the second guiding structure and the inner peripheral surface of the guiding rod. Compared with the prior art in which only the guiding shaft and the circular groove are used for limiting, the present application improves the guiding and positioning functions between the first component and the second component through double limiting, and reduces the coaxiality deviation between the first component and the second component. In addition, the magnetic bias force offset generated when the first component moves up and down relative to the second component is reduced, and the wear caused by the reduction of the magnetic bias force offset is also reduced, reducing the situation that the actuator is bent due to excessive offset of the guiding mechanism, and reducing the risk that the service life of the actuator is reduced due to excessive bending of the guiding rod.

[0009] In some embodiments, the first component includes a central rod, a first sliding hole is provided on the central rod, and the first sliding hole constitutes at least a part of the first guiding structure. A guiding rod is provided in the first sliding hole, the guiding rod is parallel to the axis of the first sliding hole, and the guiding rod constitutes at least a part of the second guiding structure; at least a part of the guiding rod is slidably received in the first sliding hole, and at least a part of the guiding rod is slidably received in the guiding rod.

[0010] The actuator provided by the embodiment of the present application has a first sliding hole opened on the end surface of the central rod. On the basis that the outer peripheral surface of the guiding rod is in guiding cooperation with the first sliding hole, a guiding rod is provided in the first sliding hole, and the inner peripheral surface of the guiding rod is in guiding cooperation with the outer peripheral surface of the guiding rod. In this way, the cooperation between the guiding rod and the central rod has double shaft-hole cooperation, further improving the guiding and positioning functions between the first component and the second component, reducing the coaxiality tolerance between the guiding rod and the central rod, and enabling the central rod to have better centering and guiding properties. In addition, the magnetic bias force offset generated when the first component moves up and down relative to the second component is reduced, and the wear caused by the reduction of the magnetic bias force offset is also reduced, reducing the situation that the actuator is bent due to excessive offset of the guiding mechanism (i.e., the central rod and the guiding rod), and reducing the risk that the service life of the actuator is reduced due to excessive bending of the guiding rod.

[0011] In addition, by providing the guiding rod, compared with the related art in which a guiding shaft is provided, the weight of the second component can be reduced to a certain extent, thereby reducing the inertial force when the second component moves up and down, reducing the material consumption cost, and being beneficial to the light weight of the actuator. Since the center of the guiding rod is a hollow structure, the heat dissipation area of the guiding rod can be increased, thereby improving the heat dissipation performance of the second component.

[0012] In some embodiments, a second sliding hole is provided on the guide rod, the axis of the guide rod is parallel to that of the second sliding hole, the inner side wall in the second sliding hole constitutes the inner peripheral surface of the guide rod, and the outer peripheral wall surface of the guide rod constitutes the outer peripheral surface of the guide rod.

[0013] In some embodiments, the actuator further includes a lower fork arm, one of the first component and the second component is connected to the lower fork arm, and the other is used for connecting to the vehicle body.

[0014] In some embodiments, the central axes of the guide rod and the central rod are collinear. In this way, the guide rod and the central axis are coaxially arranged, which is convenient for the production and processing of the guide rod and the central rod.

[0015] In some embodiments, a part of the guide rod extends out of the first sliding hole. In this way, when installing the guide rod into the first sliding hole, the guide rod can be first inserted into the guide rod and then installed into the first sliding hole, reducing the installation difficulty and improving the production efficiency.

[0016] In some embodiments, the length of the part of the guide rod extending out of the first sliding hole in the first direction is greater than or equal to 1 cm and less than or equal to 2 cm, and the first direction is the direction of the central axis of the central rod.

[0017] In some embodiments, the guide rod includes a guiding portion, and the guiding portion is located on the side of the guide rod away from the bottom wall of the first sliding hole.

[0018] In some embodiments, in the direction of extending away from the bottom wall of the first sliding hole along the first direction, the radial dimension of the guiding portion gradually decreases. In this way, when installing the guide rod into the guide rod, the guiding portion can guide the guide rod to smoothly slide into the guide rod, reducing the installation difficulty and improving the production efficiency.

[0019] In some embodiments, the projection of the guiding portion on the first plane is a straight line, and the first plane is a plane passing through the central axis of the guide rod. In this way, the whole process of the guide rod sliding into the guide hole is relatively smooth.

[0020] In some embodiments, the first component is a stator component and the second component is a rotor component.

[0021] In some embodiments, the first component is a rotor component and the second component is a stator component.

[0022] In some embodiments, a first air guide hole is provided on the central rod, one end of the first air guide hole penetrates the outer peripheral wall surface of the central rod, and the other end of the first air guide hole communicates with the first sliding hole. In this way, during the process of the guide shaft extending into the first sliding hole, the gas in the first sliding hole can be discharged through the first air guide hole. The first air guide hole can balance the internal and external air pressures during sliding, facilitating the installation by workers.

[0023] In some embodiments, the lower control arm further includes: an arm body for connecting to a wheel and an arm base, the arm base being connected between the arm body and the first component or the second component, and a second air vent being provided on the arm base, the second air vent being in internal communication with the inside of the guide rod. Thus, during the process of the guide rod extending into the guide rod, the gas inside the guide rod can be discharged through the second air vent. Among them, the second air vent can balance the internal and external air pressures during sliding and reduce the installation difficulty.

[0024] In a second aspect of the present application, a suspension system is provided, the suspension system including the actuator described above, one of the first component and the second component being adapted to be connected to the vehicle body and the other being adapted to be connected to the wheel.

[0025] In a third aspect of the present application, a vehicle is provided, the vehicle including the suspension system described above.

[0026] In some embodiments, the vehicle further includes a vehicle body and a wheel, one of the first component and the second component being connected to the vehicle body and the other being connected to the wheel.

[0027] It should be noted that for the technical effects brought by the implementation manners in the second aspect and the third aspect, reference can be made to the technical effects brought by the corresponding implementation manners in the first aspect, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings are used to provide a further understanding of the technical solutions of the present invention and form a part of the specification, and are used together with the embodiments of the present application to explain the technical solutions of the present invention, and do not constitute a limitation to the technical solutions of the present invention.

[0029] Figure 1 It is a schematic structural diagram of a vehicle provided by an embodiment of the present application;

[0030] Figure 2 It is a three-dimensional structural diagram of an actuator provided by an embodiment of the present application;

[0031] Figure 3 Provided by an embodiment of the present application Figure 2 The left view of the actuator shown;

[0032] Figure 4 Provided by an embodiment of the present application Figure 3 The sectional view of the actuator shown;

[0033] Figure 5 Provided by an embodiment of the present application Figure 4 The enlarged view of area A;

[0034] Figure 6 The left view of a center rod provided by an embodiment of the present application;

[0035] Figure 7 A cross-sectional view of a central rod provided by an embodiment of the present application;

[0036] Figure 8 A left view of a lower control arm provided by an embodiment of the present application;

[0037] Figure 9 A cross-sectional view of a lower control arm provided by an embodiment of the present application.

[0038] Reference numerals:

[0039] 1000, vehicle;

[0040] 100, vehicle body;

[0041] 200, wheel;

[0042] 300, suspension system;

[0043] 301, actuator;

[0044] 31, first component; 31A, central rod; 311, first guiding structure; 311A, first sliding hole; 312, second guiding structure; 312A, guide rod; 3121, guiding portion; 313, first air guiding hole; 314, stator core;

[0045] 32, second component; 321, guide rod; 3211, second sliding hole; 322, permanent magnet; 323, housing;

[0046] 33, lower control arm; 331, control arm base; 3311, second air guiding hole; 332, control arm body. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0048] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0049] 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0050] In the description of this application, it should be noted that, unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. Additionally, when describing pipelines, the terms "connected" and "coupled" used in this application have the meaning of conducting. The specific meaning needs to be understood in combination with the context.

[0051] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0052] In the description of this specification, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0053] 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, an extended-range electric vehicle 1000, a fuel vehicle, etc. The vehicle 1000 can also be a sedan, a truck, a bus, a lorry, a trailer, etc.

[0054] As Figure 1 shown, Figure 1 is a schematic structural diagram of a vehicle provided by an embodiment of this application. The vehicle 1000 includes a body 100 and wheels 200. The body 100 is for passengers to ride in and carry items, and the wheels 200 are installed below the body 100, for carrying the body 100 and capable of rolling on the road surface so that the vehicle 1000 can travel.

[0055] The vehicle 1000 further includes a suspension system 300. The suspension system 300 is disposed between the body 100 and the wheels 200, for transmitting force and torque between the body 100 and the wheels 200, and buffering the impact force received by the body 100 during the travel of the vehicle 1000 to improve the riding or driving comfort.

[0056] Among them, the suspension system 300 can be a non-independent suspension system, an independent suspension system, or an active suspension system.

[0057] In some embodiments of the present application, the suspension system 300 is an active suspension system, and the stiffness and damping characteristics of the active suspension system can be dynamically and adaptively adjusted according to the driving conditions of the vehicle (such as the motion state of the vehicle and the road surface conditions, etc.) so that the suspension system 300 is always in the best vibration damping state. The suspension system may include an actuator.

[0058] Specifically, Figure 2 is a three-dimensional structural schematic diagram of an actuator provided by an embodiment of the present application, Figure 3 is Figure 2 the left view of the actuator shown, Figure 4 is Figure 3 the sectional view of the actuator shown, Figure 5 is provided by an embodiment of the present application Figure 4 an enlarged view of area A. As Figure 3 , Figure 4 and Figure 5 shown, the actuator 301 may include: a first component 31 and a second component 32, wherein the first component 31 and the second component 32 can move relative to each other along the axial direction of the actuator 301. One of the first component 31 and the second component 32 is connected to the vehicle body 100, and the other is connected to the wheel 200.

[0059] Among them, the first component 31 is provided with a first guiding structure 311 and a second guiding structure 312, and the first guiding structure 311 is located on the outer side surface of the second guiding structure 312.

[0060] Optionally, the first guiding structure 311 may be located on the outer peripheral surface of the second guiding structure 312, that is, the first guiding structure 311 is arranged around the circumferential direction of the second guiding structure 312 by 360 degrees. Optionally, the first guiding structure 311 may also be arranged partially around the circumferential direction of the second guiding structure 312, that is, the first guiding structure 311 may be arranged only at a partial angle (i.e., less than 360 degrees) around the circumferential direction of the second guiding structure 312. Exemplarily, the first guiding structure 311 may be arranged only at 270 degrees around the circumferential direction of the second guiding structure 312, and the remaining 90 degrees of the circumferential direction of the second guiding structure 312 may be other components or gaps, and the present application does not make specific limitations thereto.

[0061] In addition, the second component 32 is provided with a guiding rod 321, the guiding rod 321 has a hollow gap, the guiding rod 321 includes an outer peripheral surface and an inner peripheral surface located in the gap, and when the first component 31 and the second component 32 move relative to each other, the first guiding structure 311 is in guiding cooperation with the outer peripheral surface of the guiding rod 321, and the second guiding structure 312 is in guiding cooperation with the inner peripheral surface of the guiding rod 321.

[0062] Among them, the first guiding structure 311 can be in clearance fit with the outer peripheral surface of the guiding rod 321, and the second guiding structure 312 can be in clearance fit with the inner peripheral surface of the guiding rod 321.

[0063] In a possible structural design, the first component 31 can be a stator component, and the second component 32 can be a rotor component. The stator component can move relative to the rotor component along the axial direction of the actuator 301. In another possible structural design, the first component 31 can also be a rotor component, and the second component 32 can be a stator component. For the convenience of description, the embodiments of the present application will be described by taking the first component 31 as the stator component and the second component 32 as the rotor component as an example.

[0064] For the actuator 301 provided by the embodiments of the present application, by providing the second guiding structure 312 and the first guiding structure 311 located on the outer side surface of the second guiding structure 312 on the first component 31, and providing the guiding rod 321 on the second component 32, when the first component 31 and the second component 32 move relative to each other, the first guiding structure 311 is in guiding fit with the outer peripheral surface of the guiding rod 321, and the second guiding structure 312 is in guiding fit with the inner peripheral surface of the guiding rod 321. In this way, the first component 31 and the second component 32 are in guiding fit through the first guiding structure 311 and the outer peripheral surface of the guiding rod 321, and are in guiding fit through the second guiding structure 312 and the inner peripheral surface of the guiding rod 321. Compared with the prior art where only the guiding shaft and the circular groove are used for limiting, the present application improves the guiding and positioning functions between the first component 31 and the second component 32 through double limiting, and reduces the coaxiality deviation between the first component 31 and the second component 32. In addition, the magnetic bias force offset generated when the first component 31 moves up and down relative to the second component 32 is reduced, and the wear caused by the reduction of the magnetic bias force offset is also reduced, reducing the situation that the actuator 301 is bent due to excessive offset of the guiding mechanism, and reducing the risk that the service life of the actuator 301 is reduced due to excessive bending of the guiding rod 321.

[0065] Figure 6 The left view of the center rod provided by the embodiments of the present application is shown. Figure 7 The cross-sectional view of the center rod provided by the embodiments of the present application is shown. In some embodiments, such as Figure 6 and Figure 7As shown, the first component 31 may include a central rod 31A. An end of the central rod 31A is provided with a first sliding hole 311A, and the first sliding hole 311A constitutes at least part of the first guiding structure 311. A guiding rod 312A is disposed in the first sliding hole 311A. The guiding rod 312A may be parallel to the axis of the first sliding hole 311A, and the guiding rod 312A constitutes at least part of the second guiding structure 312. Among them, the guiding rod 312A may be consistent with the extending direction of the first sliding hole 311A of the central rod 31A. Optionally, one end of the guiding rod 312A may be disposed on the bottom wall surface of the first sliding hole 311A. Optionally, one end of the guiding rod 312A may also be connected to the side wall of the first sliding hole 311A through a connecting structure, and the present application does not limit this.

[0066] In addition, at least part of the guiding rod 321 is slidably received in the first sliding hole 311A, and at least part of the guiding rod 312A is slidably received in the guiding rod 321.

[0067] In the actuator 301 provided by the embodiment of the present application, a first sliding hole 311A is formed on the end surface of the central rod 31A. On the basis that the outer peripheral surface of the guiding rod 321 is in guiding cooperation with the first sliding hole 311A, a guiding rod 312A is disposed in the first sliding hole 311A, and the inner peripheral surface of the guiding rod 321 is in guiding cooperation with the outer peripheral surface of the guiding rod 312A. In this way, the cooperation between the guiding rod 321 and the central rod 31A has a two-fold shaft-hole cooperation, further improving the guiding and positioning functions between the first component 31 and the second component 32, reducing the coaxiality tolerance between the guiding rod 321 and the central rod 31A, and enabling the central rod 31A to have better centering and guiding properties. In addition, the magnetic deflection force offset generated when the first component 31 moves up and down relative to the second component 32 is reduced, and the wear caused by the reduction of the magnetic deflection force offset is also reduced accordingly, reducing the situation that the actuator 301 is bent due to excessive offset of the guiding mechanism (i.e., the central rod 31A and the guiding rod 321), and reducing the risk that the service life of the actuator 301 is reduced due to excessive bending of the guiding rod 321.

[0068] In some embodiments, a second sliding hole 3211 is provided on the guiding rod 321, and the axis of the guiding rod 321 and the second sliding hole 3211 may be arranged in parallel. The inner side wall in the second sliding hole 3211 constitutes the inner peripheral surface of the guiding rod 321, and the outer peripheral side wall surface of the guiding rod 321 constitutes the outer peripheral surface of the guiding rod 321. That is, the (outer) side wall of the guiding rod around its central axis constitutes the outer peripheral surface of the guiding rod 321. At least part of the guiding rod 312A is slidably received in the second sliding hole 3211.

[0069] Thus, by providing the second sliding hole 3211 on the guide rod 321, compared with the related art where a guide shaft is provided, the weight of the second component 32 can be reduced to a certain extent, thereby reducing the inertial force when the second component 32 moves up and down, reducing the material consumption cost, and being beneficial to the lightweight of the actuator 301. Since the second sliding hole 3211 is provided on the guide rod 321, at least part of the guide rod is a hollow structure, so that the heat dissipation area of the guide rod 321 can be increased, thereby improving the heat dissipation performance of the second component 32.

[0070] In some embodiments, the central axis of the guide rod 321 is collinear with the central axis of the second sliding hole 3211, that is, the second sliding hole 3211 is provided on the central axis of the guide rod 321, and the second sliding hole 3211 is coaxially arranged with the guide rod 321. In this way, the production and processing of the guide rod 321 and the second sliding hole 3211 can be facilitated.

[0071] In some embodiments, the central axes of the guide rod 312A and the central rod 31A are collinear. That is, the guide rod 312A and the central rod 31A are coaxially arranged. In this way, the production and processing of the guide rod 312A and the central rod 31A can be facilitated. In other embodiments, the central axes of the guide rod 312A and the central rod 31A may not be collinear.

[0072] It can be understood that since the outer peripheral surface of the guide rod 321 is in clearance fit with the first sliding hole 311A, and the inner peripheral surface of the guide rod 321 is in clearance fit with the guide rod 312A. In this way, when installing the guide rod 321 into the first sliding hole 311A, not only the alignment installation of the outer wall surface of the guide rod 321 and the first sliding hole 311A needs to be considered, but also the alignment installation of the inner wall surface of the guide rod 321 and the guide rod 312A needs to be considered. In this way, the production efficiency will undoubtedly be low.

[0073] In order to reduce the installation difficulty and ensure a high production efficiency, in some embodiments, a part of the guide rod 312A extends out of the first sliding hole 311A.

[0074] In this way, when installing the guide rod 321 into the first sliding hole 311A, the inner peripheral surfaces of the guide rod 312A and the guide rod 321 can be aligned first. After the guide rod 312A extends into the gap inside the guide rod 321, then consider aligning the outer peripheral surface of the guide rod 321 with the first sliding hole 311A, and then install the guide rod 321 into the first sliding hole 311A. In this way, by dividing the installation of the guide rod 321 into the first sliding hole 311A into two steps, the installation difficulty is reduced and the production efficiency is improved.

[0075] It can be understood that if the length of the guide rod 321 extending out of the first sliding hole 311A is too long, it will affect the overall vehicle assembly and cause interference of the connecting rod. If the length of the guide rod 321 extending out of the first sliding hole 311A is too short, there will still be a great installation difficulty during installation. To ensure a relatively low installation difficulty and not affect the overall vehicle assembly, in a possible structural design, the length of the guide rod 312A extending out of the first sliding hole 311A in the first direction is greater than or equal to 1 cm and less than or equal to 2 cm, and the first direction can be the central axis direction of the central rod 31A.

[0076] In some other embodiments, the guide rod 312A is located within the first sliding hole 311A, and the length of the guide rod 312A within the first sliding hole 311A is less than the depth of the first sliding hole 311A.

[0077] In this way, when installing the guide rod 321 into the first sliding hole 311A, the guide rod 321 can be first installed into the first sliding hole 311A. After a part of the guide rod 321 extends into the first sliding hole 311A, the gap between the guide rod 312A and the guide rod 321 is aligned, and then the guide rod 312A is extended into the gap within the guide rod 321. In this way, the installation of the guide rod 321 into the first sliding hole 311A can also be carried out in two steps, reducing the installation difficulty and avoiding the guide rod 321 extending out of the first sliding hole 311A and affecting the subsequent overall vehicle assembly.

[0078] In some embodiments, as Figure 7 shown, the guide rod 312A may include: a guiding portion 3121, and the guiding portion 3121 is located on the side of the guide rod 312A away from the bottom wall of the first sliding hole 311A. The guiding portion 3121 is used to guide the guide rod 312A to extend into the gap within the guide rod 321.

[0079] Wherein, along the extension direction away from the bottom wall of the first sliding hole 311A in the first direction, the radial dimension of the guiding portion 3121 gradually decreases. In this way, when installing the guide rod 312A into the gap within the guide rod 321, the guiding portion 3121 can enable the guide rod 312A to smoothly slide into the gap within the guide rod 321, reducing the installation difficulty and improving the production efficiency.

[0080] In a possible structural design, the guiding portion 3121 can be a planar design. In this way, the entire process of the guide rod 312A smoothly sliding into the gap within the guide rod 321 is relatively smooth.

[0081] In another possible structural design, the guiding portion 3121 is designed as an arc surface. Optionally, the arc surface can be a concave arc surface. In this way, the radial dimension of the guiding portion 3121 on the side away from the bottom wall surface of the first sliding hole 311A is smaller, and it is more convenient and smooth to guide the guide rod 312A into the gap inside the guide rod 321. Optionally, the arc surface can also be a convex arc surface, and the present application does not limit this.

[0082] In some embodiments, as Figure 7 shown, a first air guide hole 313 is formed in the central rod 31A. One end of the first air guide hole 313 penetrates through the outer peripheral wall surface of the central rod 31A, and the other end of the first air guide hole 313 communicates with the first sliding hole 311A. In this way, during the process of the guide rod 321 extending into the first sliding hole 311A, the gas in the first sliding hole 311A can be discharged through the first air guide hole 313. The first air guide hole 313 can balance the internal and external air pressures during sliding, facilitating installation by workers.

[0083] In some embodiments of the present application, the actuator 301 may further include a lower fork arm 33. One of the first component 31 and the second component 32 is connected to the lower fork arm 33, and the other is used to be connected to the vehicle body 100.

[0084] Among them, the lower fork arm 33 has an important influence on the controllability and stability of the vehicle 1000. It helps the vehicle 1000 maintain a stable driving posture by restricting the movement range and direction of the wheel 200, especially when the vehicle 1000 is driving at high speed and turning.

[0085] In some embodiments, as Figure 8 and Figure 9 shown, the lower fork arm 33 further includes: a fork arm base 331 and a fork arm body 332. The fork arm base 331 is connected between the fork arm body 332 and the first component 31 or the second component 32. A second air guide hole 3311 may be formed in the fork arm base 331. One end of the second air guide hole 3311 communicates with the gap inside the guide rod 321, and the other end of the second air guide hole 3311 penetrates through the fork arm base 331.

[0086] In this way, during the process of the guide rod 312A extending into the gap inside the guide rod 321, the gas in the gap inside the guide rod 321 can be discharged through the second air guide hole 3311. Among them, the second air guide hole 3311 can balance the internal and external air pressures during sliding and reduce the installation difficulty.

[0087] In addition, in some embodiments, the first component 31 may further include a coil winding for generating a magnetic field when energized. The second component 32 may further include: a permanent magnet 322. Thus, when the coil winding is energized to generate a magnetic field, it interacts with the magnetic field of the permanent magnet 322, thereby driving the permanent magnet 322 to move, enabling the first component 31 to move relative to the second component 32 in a preset direction. For example, the first component 31 can move along the axial direction of the second component 32 to realize the operation of the actuator 301.

[0088] In some embodiments, the first component 31 may further include a stator core 314. The stator core 314 is circumferentially arranged around the center rod 31A and is connected to the center rod 31A. The stator core 314 may be disposed at the bottom of the center rod 31A.

[0089] It can be understood that the stator core 314 is an important component in the actuator 301 and is the main magnetic core part in the stator magnetic circuit. The stator core 314 is composed of many laminated silicon steel sheets to reduce eddy current losses and improve efficiency. The coil winding can be embedded in the slots of the stator core 314, and the stator core 314 plays a role in magnetic circuit conduction in the actuator 301, capable of converting electrical energy into mechanical energy.

[0090] In addition, the second component 32 may further include: a housing 323. The permanent magnet 322 is disposed within the housing 323, and the permanent magnet 322 is located on the side of the stator core 314 away from the center rod 31A.

[0091] In this way, when the stator core 314 at the bottom of the center rod 31A is subjected to electromagnetic excitation, a magnetic thrust is generated with the permanent magnet 322, and the first component 31 will move up and down (i.e., Figure 4 in the X-axis direction in

[0092] When understanding the scope of the present invention, as used herein, the term "comprising" and its derivatives are intended to be open-ended terms that specify the presence of the recited features, elements, components, groups, wholes, and / or steps, but do not exclude the presence of other unrecited features, elements, components, groups, wholes, and / or steps. This concept also applies to words with similar meanings, such as the terms "including", "having", and their derivatives.

[0093] As used herein, the terms "attached" or "attachment" include: a configuration in which an element is directly fixed to another element by directly securing the element to the other element; a configuration in which an element is indirectly fixed to another element by fixing the element to an intermediate member, which in turn is fixed to the other element; and a configuration in which one element is integral with another element, i.e., one element is substantially a part of the other element. This definition also applies to words having similar meanings, such as "connected", "coupled", "joined", "mounted", "adhered", "fixed" and their derivatives. Finally, degree terms such as "substantially", "about" and "approximate" used herein represent the amount of deviation that modifies the term such that the end result is not significantly changed.

[0094] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as commonly understood by those of ordinary skill in the technical field of the present utility model. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.

[0095] The utility model has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of illustration and example, and are not intended to limit the present utility model within the scope of the described embodiments. In addition, those skilled in the art can understand that the present utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present utility model, and these variations and modifications all fall within the scope of protection required by the present utility model.

Claims

1. An actuator, characterized in that, Comprising: A first component (31) and a second component (32) that can move relative to each other in the axial direction of the actuator; The first component (31) is provided with a first guiding structure (311) and a second guiding structure (312). The first guiding structure (311) is located on the outer side surface of the second guiding structure (312). The second component (32) is provided with a guiding rod (321). When the first component (31) and the second component (32) move relative to each other, the first guiding structure (311) is in guiding cooperation with the outer peripheral surface of the guiding rod (321), and the second guiding structure (312) is in guiding cooperation with the inner peripheral surface of the guiding rod (321).

2. The actuator according to claim 1, characterized in that, The first component (31) includes a central rod (31A). A first sliding hole (311A) is provided on the central rod (31A). The first sliding hole (311A) constitutes at least part of the first guiding structure (311). A guiding rod (312A) is arranged in the first sliding hole (311A). The guiding rod (312A) is parallel to the axis of the first sliding hole (311A). The guiding rod (312A) constitutes at least part of the second guiding structure (312); At least part of the guiding rod (321) is slidably received in the first sliding hole (311A), and at least part of the guiding rod (312A) is slidably received in the guiding rod (321).

3. The actuator according to claim 2, wherein A second sliding hole (3211) is provided on the guiding rod (321). The guiding rod (321) is parallel to the axis of the second sliding hole (3211). The side wall in the second sliding hole (3211) constitutes the inner peripheral surface of the guiding rod (321), and the outer peripheral side wall surface of the guiding rod (321) constitutes the outer peripheral surface of the guiding rod (321); At least part of the guiding rod (312A) is slidably received in the second sliding hole (3211).

4. An actuator according to any one of claims 1 to 3, characterized in that, The actuator further includes a lower fork arm (33). One of the first component (31) and the second component (32) is connected to the lower fork arm (33), and the other is used to be connected to the vehicle body (100).

5. An actuator according to claim 2 or 3, characterized in that, The central axes of the guiding rod (312A) and the central rod (31A) are collinear.

6. An actuator according to claim 2 or 3, characterized in that, Part of the guiding rod (312A) extends out of the first sliding hole (311A).

7. An actuator according to claim 6, characterized in that, The length of the part of the guiding rod (312A) extending out of the first sliding hole (311A) in the first direction is greater than or equal to 1 cm and less than or equal to 2 cm. The first direction is the direction of the central axis of the central rod (31A).

8. An actuator according to claim 2 or 3, characterized in that, The guiding rod (312A) includes: a guiding portion (3121). The guiding portion (3121) is located on the side of the guiding rod (312A) away from the bottom wall of the first sliding hole (311A).

9. An actuator according to claim 8, wherein In the direction of extending away from the bottom wall of the first sliding hole (311A) along the first direction, the radial dimension of the guiding portion (3121) gradually decreases. The first direction is the direction of the central axis of the central rod (31A).

10. An actuator according to any one of claims 1-3, characterized in that, The first component (31) is a stator component, and the second component (32) is a rotor component.

11. An actuator according to any one of claims 1 to 3, characterized in that, The first component (31) is a mover component, and the second component (32) is a stator component.

12. An actuator according to claim 2 or 3, characterized in that, A first air guide hole (313) is provided on the central rod (31A). One end of the first air guide hole (313) penetrates the outer peripheral wall surface of the central rod (31A), and the other end of the first air guide hole (313) communicates with the first sliding hole (311A).

13. An actuator according to claim 10, characterized in that, The first component (31) includes a central rod (31A). A first sliding hole (311A) is provided on the central rod (31A). The first sliding hole (311A) constitutes at least part of the first guiding structure (311). A guide rod (312A) is arranged in the first sliding hole (311A). The guide rod (312A) is parallel to the axis of the first sliding hole (311A). The guide rod (312A) constitutes at least part of the second guiding structure (312). The first component (31) further includes: a stator core (314). The stator core (314) is arranged around the circumference of the central rod (31A) and is connected to the central rod (31A). The second component (32) further includes: a housing (323) and a permanent magnet (322). The permanent magnet (322) is arranged in the housing (323), and the permanent magnet (322) is located on the side of the stator core (314) away from the central rod (31A).

14. An actuator according to claim 4, characterized in that, The lower fork arm (33) further includes: a fork arm body (332) for connecting to the wheel (200); a fork arm base (331) connected between the fork arm body (332) and the first component (31) or the second component (32). A second air guide hole (3311) is provided on the fork arm base (331), and the second air guide hole (3311) communicates with the inside of the guide rod (321).

15. A suspension system, characterized in that, including: an actuator (301) according to any one of claims 1-14 above; One of the first component (31) and the second component (32) is adapted to be connected to the vehicle body (100), and the other is adapted to be connected to the wheel (200).

16. A vehicle, characterized in that, including: a suspension system (300) according to claim 15 above.

17. A vehicle according to claim 16, wherein, It further includes a vehicle body (100) and a wheel (200). One of the first component (31) and the second component (32) is connected to the vehicle body (100), and the other is connected to the wheel (200).

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