Actuator and vehicle

Abstract

The utility model discloses an actuator and a vehicle. The actuator comprises a first shell and a second shell, one end of the second shell is arranged in the first shell in a sleeved mode, the second shell and the first shell can move relatively in the first direction, and the second shell and the first shell are matched in a guiding mode at the sleeved position of the second shell and the first shell. According to the actuator, the second shell and the first shell are in guiding fit at the sleeving position of the second shell and the first shell, so that the first shell and the second shell can do relative linear motion, the problems of shaking, deviation and the like of the actuator due to lack of guiding capacity are avoided, the motion precision and stability of the actuator are improved, and the service life of the actuator is prolonged. The full-active real-time adjusting function of the actuator is improved, the actuator can rapidly and accurately adjust the relative position or state of the first shell and the second shell according to needs, and therefore the requirements of different application scenes are met.

Description

Technical Field

[0001] The present application relates to the technical field of actuators, and in particular, to an actuator and a vehicle. Background Art

[0002] In related technologies, most actuators work based on the principle of relative motion of the shells. However, due to insufficient guidance between the shells, the actuators are prone to shaking and offset during movement, thereby reducing the movement accuracy and stability of the actuators. Utility Model Content

[0003] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present application proposes an actuator that is conducive to improving the motion accuracy and stability of the actuator.

[0004] The present application also proposes a vehicle having the actuator.

[0005] According to the actuator of the embodiment of the present application, it includes a first shell and a second shell, one end of the second shell is sleeved in the first shell, the second shell and the first shell can move relative to each other in a first direction, and the second shell and the first shell are guided and matched at the sleeve position.

[0006] According to the actuator of the embodiment of the present application, the second shell and the first shell are guided and matched at the nested position of the two, so that the first shell and the second shell can make relative linear motion while avoiding shaking, offset and other problems of the actuator due to lack of guiding ability, thereby improving the movement accuracy and stability of the actuator, and improving the fully active real-time adjustment function of the actuator, so that the actuator can quickly and accurately adjust the relative position or state of the first shell and the second shell as needed, thereby meeting the needs of different application scenarios.

[0007] According to some embodiments of the present application, the first shell includes a first shell body and a center rod, the first shell body is connected to the center rod, the first shell body is sleeved on the outer circumference of the center rod, and an annular space is formed between the first shell body and the center rod. One end of the second shell extends into the annular space, and the second shell is guided and matched with the first shell body.

[0008] According to some embodiments of the present application, a first guide structure is provided between the second shell and the first shell body, wherein the first shell body has a first mating cylindrical surface, the second shell has a second mating cylindrical surface, the first guide structure is installed on the first mating cylindrical surface, and the second mating cylindrical surface is suitable for slidingly mating with the inner surface of the first guide structure.

[0009] According to some embodiments of the present application, the first end of the center rod extends out of the annular space in a direction away from the second housing, the second end of the center rod extends out of the annular space in a direction towards the second housing, and the first end of the center rod is provided with a vehicle body side connecting structure.

[0010] According to some embodiments of the present application, the actuator further comprises a guide rod, the guide rod is directly or indirectly connected and fixed with the second housing, the center rod has a guide cavity inside, the guide rod extends into the guide cavity, and the guide rod and the guide cavity are in guiding cooperation.

[0011] According to some embodiments of the present application, a second guiding structure is arranged between the outer periphery of the guide rod and the cavity wall of the guide cavity, the second guiding structure is mounted on the cavity wall of the guide cavity, and the second guiding structure and the outer periphery of the guide rod are in sliding cooperation.

[0012] According to some embodiments of the present application, the center rod has a wire routing cavity inside, the center rod is provided with a wire passing hole on the rod peripheral wall, one end of the wire passing hole is communicated to the wire routing cavity, and the other end of the wire passing hole is communicated to the outer peripheral surface of the center rod.

[0013] According to some embodiments of the present application, the actuator further comprises a winding assembly, the winding assembly is mounted on the outer peripheral surface of the center rod, the winding assembly has a wire outlet end, and the wire outlet end extends into the wire routing cavity through the wire passing hole.

[0014] According to some embodiments of the present application, the outer peripheral surface of the center rod is provided with an anti-rotation structure, and the anti-rotation structure is used to prevent the winding assembly from rotating around the outer periphery of the center rod.

[0015] According to some embodiments of the present application, the guide cavity and the wire routing cavity are communicated, or the guide cavity and the wire routing cavity are separated by a separation wall.

[0016] According to some embodiments of the present application, the actuator further comprises a fork arm, the fork arm is connected with the guide rod, the fork arm is further connected with the second housing, and the fork arm is provided with a vehicle wheel side connecting structure.

[0017] According to some embodiments of the present application, the actuator further comprises a magnetic steel assembly, the magnetic steel assembly is mounted on the second housing, the second housing comprises a second housing body and a second housing stop wall, the second housing stop wall is connected to one end of the second housing body extending into the first housing, the second housing stop wall extends radially inwardly relative to the second housing body, and one end of the magnetic steel assembly abuts against the second housing stop wall.

[0018] According to some embodiments of the present application, the actuator further comprises a first elastic support, the first housing body has a first flange, the second housing body has a second flange, the first elastic support is located between the first flange and the second flange, and the first elastic support abuts against the first flange and the second flange.

[0019] According to some embodiments of the present application, the actuator further comprises a second elastic support, the second elastic support is arranged between the magnet group and the fork arm, and the second elastic support abuts against the magnet group and the fork arm.

[0020] According to some embodiments of the present application, the actuator further comprises a third elastic support, the third elastic support is located in the annular space, and the third elastic support abuts against the first housing body and the second housing stop wall.

[0021] According to some embodiments of the present application, the outer peripheral wall of the second housing body is provided with a limiting structure, the limiting structure is used to limit the maximum limit position of the movement of the first housing and the second housing towards each other.

[0022] According to some embodiments of the present application, the second housing further has a large-diameter surface, the outer diameter of the large-diameter surface is greater than the outer diameter of the second matching column surface, the limiting structure is formed as a stepped connection surface of the large-diameter surface and the second matching column surface, or the limiting structure is a limiting ring installed on the outer peripheral surface of the second housing.

[0023] According to some embodiments of the present application, the fork arm comprises a fork arm body and a fork arm flange, the fork arm flange is connected with the fork arm body, the fork arm flange has a positioning stop, the positioning stop is matched with the inner wall of the second housing, the fork arm flange is installed on the second housing, the fork arm flange has a stepped installation surface, the guide rod comprises a guide rod body and a guide rod seat, the guide rod body extends into the guide cavity and is guidedly matched with the guide cavity, the guide rod seat comprises a stepped installation seat, the stepped installation seat is attached to the stepped installation surface, and the guide rod seat is connected with the fork arm flange.

[0024] According to another aspect of the embodiments of the present application, a vehicle comprises the actuator described above.

[0025] According to the vehicle of the embodiment of the present application, the actuator is guided by the second shell and the first shell at the sleeving position of the two, so that the first shell and the second shell can make relative linear motion, and the problems of shaking and deviation of the actuator due to lack of guiding ability are avoided, thereby improving the motion accuracy and stability of the actuator, improving the full active real-time adjustment function of the actuator, and enabling the actuator to quickly and accurately adjust the relative position or state of the first shell and the second shell according to needs, thereby meeting the needs of different application scenarios.

[0026] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a perspective view of an actuator according to an embodiment of the present application;

[0028] Figure 2 is a front view of an actuator according to an embodiment of the present application;

[0029] Figure 3 is Figure 2 is a cross-sectional view of A-A in FIG. 1;

[0030] Figure 4 is Figure 2 is a cross-sectional view of A-A in FIG. 1, in which the magnetic steel assembly and the winding assembly are hidden;

[0031] Figure 5 is Figure 4 is a partial enlarged view of B in FIG. 1;

[0032] Figure 6 is a perspective view of a first shell according to an embodiment of the present application;

[0033] Figure 7 is a front view of a first shell according to an embodiment of the present application;

[0034] Figure 8 is Figure 7 is a cross-sectional view of C-C in FIG. 2;

[0035] Figure 9 is a perspective view of a second shell according to an embodiment of the present application;

[0036] Figure 10 is a front view of a second shell according to an embodiment of the present application;

[0037] Figure 11 is Figure 10 is a cross-sectional view of D-D in FIG. 3;

[0038] Figure 12is a perspective view of a fork arm and guide rod according to embodiments of the present application;

[0039] Figure 13 is a front view of a fork arm and guide rod according to embodiments of the present application;

[0040] Figure 14 is Figure 13 is a cross-sectional view of E-E in FIG. 10;

[0041] Figure 15 is a perspective view of a magnet assembly according to embodiments of the present application;

[0042] Figure 16 is a front view of a magnet assembly according to embodiments of the present application;

[0043] Figure 17 is Figure 16 is a cross-sectional view of F-F in FIG. 11;

[0044] Figure 18 is a perspective view of a winding assembly according to embodiments of the present application;

[0045] Figure 19 is a front view of a winding assembly according to embodiments of the present application;

[0046] Figure 20 is Figure 19 is a cross-sectional view of G-G in FIG. 12;

[0047] Figure 21 is a schematic view of a vehicle according to embodiments of the present application.

[0048] Reference Signs:

[0049] Vehicle 100, actuator 10, first shell 1, first shell body 11, first matching cylindrical surface 111, first flange 112, center rod 12, vehicle body side connecting structure 121, guide cavity 122, wire routing cavity 123, wire routing hole 124, anti-rotation structure 125, center shaft feature surface 126, center shaft axial limiting surface 127, center shaft threaded connecting surface 128, guide structure connecting cavity wall 129, annular space 13, reinforcing rib 14, second shell 2, second matching cylindrical surface 21, second shell body 22, second flange 221, limiting structure 222, reinforcing portion 223, fork arm connecting structure 224, second shell body inner wall 225, second shell stop wall 23, large diameter surface 24, first guide structure 31, second guide structure 32, guide rod 4, guide rod body 41, guide rod seat 42, stepped mounting seat 421, flange connecting structure 422, winding assembly 5, wire terminal 51, wire outlet 52, core assembly 53, coil assembly 54, anti-rotation connecting portion 55, fork arm 6, vehicle wheel side connecting structure 61, fork arm body 62, fork arm flange 63, positioning stop 631, stepped mounting surface 632, shell connecting structure 633, magnetic steel assembly 7, first direction magnetized magnetic steel 71, second direction magnetized magnetic steel 72, first elastic support 81, second elastic support 82, third elastic support 83. DETAILED DESCRIPTION

[0050] Embodiments of the present application are described below in detail with reference to examples illustrated in the accompanying drawings, in which like or similar elements or components throughout the drawings are designated with like reference numerals, and any description of the embodiments is intended for explaining the present application, and cannot be construed as limiting the present application.

[0051] In the description of the present application, the terms "first", "second" are used only for the purpose of description, and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0052] The following will be described below in conjunction with Figures 1-21 The actuator 10 according to the embodiments of the present application and the vehicle 100 having the actuator 10 are described in detail.

[0053] Reference is made to Figures 1-4As shown, the actuator 10 according to the embodiment of the present application comprises a first shell 1 and a second shell 2, one end of the second shell 2 is sleeved in the first shell 1, the second shell 2 and the first shell 1 can move relatively in the first direction, and the second shell 2 and the first shell 1 are guided and matched at the sleeving position. Specifically, by guiding and matching the second shell 2 and the first shell 1 at the sleeving position, the stability and accuracy of the second shell 2 and the first shell 1 during movement are ensured, the shaking and deviation of the actuator 10 during work are reduced, the movement precision is improved, and the full active real-time adjustment capability of the actuator 10 is improved. The second shell 2 is sleeved in the first shell 1, so that the structure of the whole actuator 10 is more compact, the space occupied is small, and it is beneficial to installation and use in limited space.

[0054] It should be noted that in the above, the first direction is Figures 1-4 the F1-F2 direction shown.

[0055] The relative movement of the second shell 2 and the first shell 1 can be that the first shell 1 is fixed and the second shell 2 moves relative to the first shell 1, or that the second shell 2 is fixed and the first shell 1 moves relative to the second shell 2, or that the second shell 2 and the first shell 1 both move. For the sake of convenience, the structure and working principle of the actuator 10 will be described below by taking the first shell 1 as fixed and the second shell 2 as moving relative to the first shell 1 as an example.

[0056] In related technologies, most actuators work on the principle of relative movement of shells, but the lack of guidance between shells often leads to shaking and deviation during movement of the actuator, thereby reducing the movement precision and stability of the actuator.

[0057] According to the actuator 10 of the embodiment of the present application, by guiding and matching the second shell 2 and the first shell 1 at the sleeving position, the first shell 1 and the second shell 2 can make relative linear movement, while avoiding the problems of shaking and deviation of the actuator 10 due to lack of guidance capability, thereby improving the movement precision and stability of the actuator 10, improving the full active real-time adjustment function of the actuator 10, and enabling the actuator 10 to quickly and accurately adjust the relative position or state of the first shell 1 and the second shell 2 as needed, thereby meeting the needs of different application scenarios.

[0058] In some embodiments of the present application, referring to Figures 1-4 , Figures 6-9 as shown, the first shell 1 comprises a first shell body 11 and a center rod 12, the first shell body 11 is connected with the center rod 12, the first shell body 11 is sleeved on the outer periphery of the center rod 12, an annular space 13 is formed between the first shell body 11 and the center rod 12, one end of the second shell 2 extends into the annular space 13, and the second shell 2 is guided and matched with the first shell body 11.

[0059] Specifically, through the connection of the first shell body 11 and the center rod 12, and the guiding fit of the second shell 2 and the first shell body 11, the structure of the actuator 10 is more stable, which helps to resist external loads and ensure the stable operation of the actuator 10 under various working conditions. Through the guiding fit of the second shell 2 and the first shell body 11, the accuracy and stability of the movement of the second shell 2 relative to the first shell body 11 in the first direction F1-F2 are improved, and unnecessary friction and resistance during the movement of the first shell body 11 and the second shell 2 can be reduced (for example, reducing friction and resistance in the direction deviating from the axis of the actuator 10), which helps to improve the movement efficiency and response speed of the actuator 10.

[0060] In some embodiments, the first shell body 11 and the center rod 12 are an integral part. In this way, the circumference and perpendicularity between the center rod 12 and the first shell body 11 can meet the requirements, which is more conducive to ensuring the machining accuracy and shape accuracy of the first shell body 11 and the center rod 12, and further ensuring the operation reliability of the actuator 10. At the same time, the assembly steps of the first shell body 11 and the center rod 12 are saved, which is conducive to saving the assembly time of the actuator 10.

[0061] In some embodiments, as shown in Figure 6 , Figure 7 , the first shell 1 further comprises a reinforcing rib 14, the reinforcing rib 14 is a triangular rib plate, one end of the reinforcing rib 14 is connected to the center rod 12, and the other end of the reinforcing rib 14 is connected to the first shell body 11. In this way, the structural stress at the connection between the first shell body 11 and the center rod 12 is reduced, and the reliability of the structural strength of the first shell 1 is higher.

[0062] In some embodiments of the present application, as shown in Figures 1-5 , Figure 8 , Figure 11 , a first guiding structure 31 is arranged between the second shell 2 and the first shell body 11, wherein the first shell body 11 has a first matching cylindrical surface 111, the second shell 2 has a second matching cylindrical surface 21, the first guiding structure 31 is installed on the first matching cylindrical surface 111, and the second matching cylindrical surface 21 is adapted to be slidingly matched with the inner surface of the first guiding structure 31. Specifically, the first guiding structure 31 provides a clear path and direction for the movement of the second shell 2, ensuring that the movement of the second shell 2 relative to the first shell body 11 in the first direction F1-F2 has high accuracy, which helps to reduce deviation and shaking during movement, and improves the overall movement accuracy of the actuator 10.

[0063] In some embodiments, the surface roughness of the second matching cylindrical surface 21 is not more than 0.1. In this way, the low sliding friction between the second matching cylindrical surface 21 and the first guide structure 31 is ensured, and the energy loss of the actuator 10 during operation is reduced. Alternatively, the surface roughness of the second matching cylindrical surface 21 can be 0.1, 0.09, 0.08, or other values less than 0.1.

[0064] Alternatively, the first guide structure 31 is a cylindrical structure, and the second matching cylindrical surface 21 is adapted to be in sliding fit with the inner surface of the first guide structure 31. The first guide structure 31 and the second housing 2 are two components in sliding fit, and the inner surface of the first guide structure 31 and any one of the second matching cylindrical surfaces 21 can be made of a material with low friction coefficient. For example, the material can be a solid sliding material, a metal friction-reducing material, a non-metal friction-reducing material, or the like. A suitable lubrication method can be used between the inner surface of the first guide structure 31 and the second matching cylindrical surface 21 to reduce the frictional resistance between the first guide structure 31 and the second housing 2 during relative motion, such as thin oil lubrication, oil mist lubrication, or oil gas lubrication, or the like. In this way, the frictional resistance between the first guide structure 31 and the second housing 2 during relative motion is reduced, the motion efficiency and response speed of the actuator 10 are improved, and the service life of the actuator 10 is prolonged.

[0065] In some embodiments of the present application, referring to Figures 1-4 As shown in the figure, the first end of the center rod 12 extends out of the annular space 13 in a direction away from the second housing 2, and the second end of the center rod 12 extends out of the annular space 13 in a direction close to the second housing 2. The first end of the center rod 12 is provided with a vehicle body side connecting structure 121, and the vehicle body side structure is connected to the center rod 12 through the vehicle body side connecting structure 121. In this way, the vehicle body side connecting structure 121 is provided to facilitate the connection of the center rod 12 to the vehicle body side structure. When the actuator 10 controls the relative motion between the first housing 1 and the second housing 2, the relative position of the center rod 12 is adjusted, and the relative position of the vehicle body side structure is controlled. The second housing 2 can be directly or indirectly connected to the wheel side structure, and the relative position of the vehicle body side structure and the wheel side structure can be adjusted during the relative motion between the first housing 1 and the second housing 2, thereby adjusting the relative position of the vehicle body and the wheel.

[0066] Alternatively, the connection between the vehicle body side structure and the center rod 12 can be a threaded connection, a rivet connection, a buckle connection, or the like. For example Figure 3 As shown in the figure, the vehicle body side connecting structure 121 has an external thread structure, and the connection between the vehicle body side structure and the center rod 12 is a threaded connection.

[0067] It should be noted that in the above, the first end of the center rod 12 is an end biased in the F1 direction, and the second end of the center rod 12 is an end biased in the F2 direction.

[0068] In some embodiments of the present application, referring to Figure 3 , Figure 4 illustrated, the actuator 10 further comprises a guide rod 4, which is directly or indirectly connected and fixed with the second housing 2. The center rod 12 has a guide cavity 122 inside, the guide rod 4 extends into the guide cavity 122, and the guide rod 4 is guided with the guide cavity 122. Thus, the guide cooperation between the guide rod 4 and the guide cavity 122 provides a clear path and direction for the movement of the first housing 1 and the second housing 2, which helps to further reduce the deviation and shaking during the relative movement of the first housing 1 and the second housing 2, and improves the overall movement accuracy of the actuator 10, and improves the stable operation of the actuator 10.

[0069] In some embodiments of the present application, referring to Figures 1-4 , Figures 6-8 illustrated, a second guide structure 32 is arranged between the outer periphery of the guide rod 4 and the cavity wall of the guide cavity 122. The second guide structure 32 is installed on the cavity wall of the guide cavity 122, and the second guide structure 32 is in sliding cooperation with the outer periphery of the guide rod 4. Specifically, the outer surface of the second guide structure 32 is in contact with the cavity wall of the guide cavity 122, and the inner surface of the second guide structure 32 is in sliding cooperation with the outer periphery of the guide rod 4. Thus, the second guide structure 32 provides a clear sliding path for the guide rod 4, ensuring the stable movement of the guide rod 4 in the guide cavity 122, which helps to further reduce the deviation and shaking during the relative movement of the first housing 1 and the second housing 2, and improves the movement accuracy of the entire actuator 10.

[0070] It should be noted that the cavity wall of the guide cavity 122 includes a guide structure connecting cavity wall 129. The above-mentioned "the second guide structure 32 is installed on the cavity wall of the guide cavity 122" means that the second guide structure 32 is installed on the guide structure connecting cavity wall 129 of the guide cavity 122.

[0071] Optionally, the second guide structure 32 is in sliding cooperation with the guide rod 4, and either of the second guide structure 32 and the guide rod 4 adopts a material with low friction coefficient. For example, the material can be a solid sliding material, a metal friction-reducing material, a non-metal friction-reducing material, etc. A suitable lubrication method can be used between the second guide structure 32 and the guide rod 4 to reduce the frictional resistance between the second guide structure 32 and the guide rod 4 during relative movement. For example, the lubrication method can be thin oil lubrication, oil mist lubrication, or oil gas lubrication, etc. Thus, it helps to reduce the frictional resistance between the second guide structure 32 and the guide rod 4 during relative movement, improves the movement efficiency and response speed of the actuator 10, and improves the service life of the second guide structure 32 and the guide rod 4.

[0072] In some embodiments, the second guide structure 32 can be a low-friction sliding bearing,

[0073] In some embodiments, the second guide structure 32 can be a ball spline, and accordingly, the outer circumferential wall of the guide structure connecting cavity 129 and the outer circumferential wall of the guide rod 4 need to be adapted to the corresponding ball spline groove features.

[0074] In some embodiments, the surface roughness of the outer circumference of the guide rod 4 is not more than 0.1. In this way, it is ensured that the sliding friction between the guide rod 4 and the second guide structure 32 is low, reducing the energy loss of the actuator 10 in operation. Alternatively, the surface roughness of the outer circumference of the guide rod 4 can be 0.1, 0.09, 0.08 or other values less than 0.1.

[0075] In some embodiments of the present application, referring to Figure 3 , Figure 4 , the center rod 12 has a wire cavity 123 inside, and the rod circumferential wall of the center rod 12 is provided with a wire passing hole 124, one end of the wire passing hole 124 is communicated to the wire cavity 123, and the other end of the wire passing hole 124 is communicated to the outer circumferential surface of the center rod 12. Specifically, by providing a wire cavity 123 inside the center rod 12, the wire cavity 123 can pass through the wire (such as the wire outlet 52 mentioned below), so that the wire can be more orderly and orderly, avoiding the disorderly arrangement of the wire outside the center rod 12, improving the overall aesthetics of the actuator 10. It can also reduce the wear of the wire caused by external environmental factors, prolong the service life of the wire, and improve the service life of the actuator 10.

[0076] In some embodiments of the present application, referring to Figure 3 , Figure 4 , Figure 8 , Figures 18-20 , the actuator 10 further comprises a winding assembly 5, the winding assembly 5 is installed on the outer circumferential surface of the center rod 12, and the winding assembly 5 has a wire outlet 52, the wire outlet 52 extends into the wire cavity 123 through the wire hole 124. Specifically, the winding assembly 5 is directly installed on the outer circumferential surface of the center rod 12, making the structure of the entire actuator 10 more compact, reducing the space occupation, which is conducive to installation and use in limited space, and the wire outlet 52 extends into the wire cavity 123 through the wire passing hole 124, making the wire arrangement inside the wire cavity 123 more orderly and neat, improving the reliability and safety of the actuator 10.

[0077] In some embodiments not shown in the figures, the outlet terminal 52 comprises an outlet terminal body and an outlet terminal cable, one end of the outlet terminal cable is connected to the outlet terminal body, the outlet terminal cable extends into the wire routing cavity 123 through the wire hole 124, the other end of the outlet terminal cable extends out of the first housing 1 from the axial F1 end of the wire routing cavity 123, or the other end of the outlet terminal cable is located in the wire routing cavity 123 and connected to the external wire harness extending into the wire routing cavity 123. In this way, the connection position of the outlet terminal cable and the outlet terminal body is located outside the center rod 12, which facilitates the connection of the outlet terminal cable and the outlet terminal body, improves the installation speed, and improves the neatness and maintainability of the wiring. At the same time, the segmented design of the outlet terminal body and the outlet terminal cable makes the installation of the outlet terminal 52 more convenient.

[0078] In addition, the direct connection of the outlet terminal cable and the outlet terminal body ensures stable transmission of electrical signals, reduces the risk of failure caused by poor or loose connection, and at the same time, the wire routing cavity 123 provides a relatively closed and safe space for the outlet terminal cable, which helps to reduce electromagnetic interference and signal attenuation, improves electrical performance, reduces the erosion and damage of the outlet terminal cable by the external environment, improves the durability and reliability of the outlet terminal cable, and prolongs the service life of the actuator 10.

[0079] Referring to Figure 3 and Figure 8 , the center rod 12 comprises a center shaft feature surface 126, a center shaft axial limiting surface 127 and a center shaft threaded connection surface 128, the center shaft feature surface 126 is a cylindrical surface, the center shaft axial limiting surface 127 is perpendicular to the axis of the center rod 12, the winding assembly 5 is sleeved on the center shaft feature surface 126, one end of the winding assembly 5 in the axial direction abuts against the center shaft axial limiting surface 127, and the winding assembly 5 is fixedly installed on the outer peripheral surface of the center rod 12 by the threaded connection of the fastening nut and the center shaft threaded connection surface 128.

[0080] In some embodiments, referring to Figures 18-20As shown, the winding assembly 5 includes a terminal 51, an outlet terminal 52, an iron core assembly 53 and a three-phase coil assembly 54. The number of the terminal 51 and the number of the outlet terminal 52 are consistent with the number of the wire holes 124. The outlet terminal 52 passes through the wire hole 124 from the outside of the center rod 12 and enters the wiring cavity 123. The outlet terminal 52 can also be led out to the outside of the first shell 1 or in the wiring cavity 123 in the axial direction away from the winding assembly 5 and connected to the external wiring harness extending into the wiring cavity 123. The iron core assembly 53 The core assembly 53 comprises multiple cores stacked axially. The cores can be identical or slightly different in structure. The core assembly 53 has a through-hole feature internally, which is used to achieve hole-axis mating with the center rod 12. Slots are formed between adjacent cores to accommodate the coil assemblies 54, which are sequentially arranged within the slots. Wire slots are provided axially on the exterior of the core assembly 53. The number of wire slots generally matches the number of coil phases in the coil assembly 54. The coil assemblies 54 are connected together at the lower end of the winding assembly 5. Each phase coil of the coil assembly 54 retains an outlet terminal 52 at the upper end of the winding assembly 5.

[0081] Optionally, the number of the outlet terminals 52 may be one, two, three or more. Figure 18 As shown, there are three outlet terminals 52 , and the corresponding number of connection terminals 51 and number of wire holes 124 are both three.

[0082] In some embodiments of the present application, see Figures 6-8 、 Figure 18 As shown, an anti-rotation structure 125 is provided on the outer circumference of the center rod 12. The anti-rotation structure 125 is used to prevent the winding assembly 5 from rotating around the outer circumference of the center rod 12. The winding assembly 5 also includes an anti-rotation connection portion 55, and the anti-rotation structure 125 is installed in conjunction with the anti-rotation connection portion 55. In other words, the cooperation between the anti-rotation connection portion 55 in the winding assembly 5 and the anti-rotation structure 125 on the center rod 12 can ensure that the winding assembly 5 does not undergo circumferential rotational movement during movement. This rotational movement has a significant impact on the reliability of the output line. By preventing the winding assembly 5 from rotating, the reliability of the actuator 10 is improved. Thus, the anti-rotation structure 125 can ensure that the winding assembly 5 is fixed in position on the center rod 12, preventing the winding assembly 5 from circumferentially loosening due to vibration or external force during operation, helping to maintain a stable connection between the winding assembly 5 and the center rod 12, and ensuring stable transmission of electrical signals.

[0083] In some embodiments of the present application, the guide cavity 122 is connected to the wiring cavity 123; or, the guide cavity 122 and the wiring cavity 123 are separated by a partition wall.

[0084] In some embodiments, as Figure 8As shown, the guide cavity 122 is connected to the wiring cavity 123. This is beneficial to simplifying the processing and manufacturing process of the center rod 12.

[0085] In some embodiments not shown, the guide cavity 122 and the wiring cavity 123 are separated by a partition wall. This partition wall effectively isolates the electromagnetic field between the guide cavity 122 and the wiring cavity 123, preventing electromagnetic interference and ensuring the proper operation of the actuator 10 and stable signal transmission. It also prevents malfunctions or damage within the guide cavity 122 caused by a malfunction of the wiring terminal 52, thereby improving equipment safety and reducing repair time and costs associated with malfunctions. Furthermore, it prevents the guide rod 4 from colliding with the wiring terminal 52 while moving within the guide cavity 122.

[0086] In some embodiments of the present application, see Figures 1-4 、 Figures 12-14 As shown, the actuator 10 also includes a fork arm 6, which is connected to the guide rod 4. The fork arm 6 is also connected to the second housing 2. The fork arm 6, guide rod 4, and second housing 2 are connected to form an assembly capable of synchronous movement. The fork arm 6 is provided with a wheel-side connection structure 61. The wheel-side structure is connected to the fork arm 6 via the wheel-side connection structure 61. Specifically, the design of the fork arm 6 increases the overall strength and rigidity of the actuator 10, enabling the actuator 10 to withstand greater loads and ensuring the long-term stable operation of the actuator 10. The wheel-side connection structure 61 provided on the fork arm 6 facilitates the connection between the fork arm 6 and the wheel-side structure. When the actuator 10 controls the relative movement between the first housing 1 and the second housing 2, it adjusts the relative position of the second housing 2, thereby controlling the fork arm 6 to move the wheel-side structure to the corresponding position, achieving flexible and adjustable wheel-side structure. This also changes the distance between the wheel and the vehicle body.

[0087] Optionally, the connection between the fork arm 6 and the second housing 2 may be threaded connection, welding or the like. Figure 3 、 Figure 12 As shown, the fork arm 6 and the second housing 2 are connected in a threaded manner.

[0088] Optionally, the guide rod 4 and the fork arm 6 can be connected by threaded fasteners, welding, etc. Figure 3 、 Figure 12 As shown, the guide rod 4 and the fork arm 6 are connected by using threaded fasteners.

[0089] In some embodiments, see Figures 12-14 As shown, the fork arm 6 and the guide rod 4 are configured as a separate structure. The guide rod 4 is configured as a material and structure with higher rigidity, and the fork arm 6 is configured as a material and structure with appropriate structural strength and lighter material, which is conducive to reducing the overall weight of the actuator 10.

[0090] In some embodiments of the present application, see Figure 3 、 Figures 9-11 As shown, the actuator 10 further includes a magnetic steel assembly 7 mounted in the second housing 2. The second housing 2 includes a second housing body 22 and a second housing stop wall 23. The second housing stop wall 23 is connected to the end of the second housing body 22 that extends into the first housing 1. The second housing stop wall 23 extends radially inward relative to the second housing body 22. One end of the magnetic steel assembly 7 abuts against the second housing stop wall 23. Specifically, the second housing stop wall 23 provides stable support for the magnetic steel assembly 7, effectively preventing displacement or dislodging of the magnetic steel assembly 7 during operation of the actuator 10, thereby improving the stability and reliability of the overall structure.

[0091] It should be noted that the above “the magnetic steel assembly 7 is installed on the second shell 2 ” means that the magnetic steel assembly 7 is fixedly installed on the inner wall 225 of the second shell body.

[0092] Optionally, the connection between the magnetic steel assembly 7 and the second shell 2 can be adhesive connection, welding, etc. Figure 3 In the example shown, the magnetic steel assembly 7 and the second housing 2 are connected by adhesive bonding.

[0093] It should be noted that the above “the second shell stop wall 23 is connected to the end of the second shell body 22 extending into the first shell 1, and the second shell stop wall 23 extends radially inward relative to the second shell body 22” means that the second shell stop wall 23 is located in the direction of the second shell body 22 close to F1, and the second shell stop wall 23 extends toward the central axis of the second shell body 22 and perpendicular to the central axis of the second shell body 22.

[0094] In some embodiments, see Figures 15-17 As shown, the magnetic steel assembly 7 includes a first direction magnetized magnetic steel 71 and a second direction magnetized magnetic steel 72. The first direction magnetized magnetic steel 71 and the second direction magnetized magnetic steel 72 are stacked in sequence in the axial direction to a specified height.

[0095] In some embodiments of the present application, see Figure 3 、 Figure 6 、 Figure 9As shown, the actuator 10 further comprises a first elastic support 81, the first housing body 11 has a first flange 112, the second housing body 22 has a second flange 221, the first elastic support 81 is located between the first flange 112 and the second flange 221, and the first elastic support 81 abuts against the first flange 112 and the second flange 221. Specifically, the first elastic support 81 supports the first housing 1 and the second housing 2, further couples the axial movement space of the first housing 1 and the second housing 2, and is more conducive to meeting the space requirement of the vehicle 100 arrangement, while ensuring that the first housing 1 and the second housing 2 can still maintain close contact when subjected to external force, which helps to maintain the stability of the internal components of the actuator 10. The first elastic support 81 also provides a buffering and damping effect, avoids sudden changes in the relative movement speed between the first housing 1 and the second housing 2, and can reduce the influence of vibration and impact on the internal components of the actuator 10, thereby improving the stability and reliability of the actuator 10.

[0096] Optionally, the first elastic support 81 can be a spring, a rubber elastic body, an air spring or other elastic elements. For example Figure 3 As shown, the first elastic support 81 is a spring.

[0097] In some embodiments of the present application, refer to Figure 3 As shown, the actuator 10 further comprises a second elastic support 82, the second elastic support 82 is arranged between the magnetic steel assembly 7 and the fork arm 6, and the second elastic support 82 abuts against the magnetic steel assembly 7 and the fork arm 6. Thus, the second elastic support 82 provides a certain axial pre-tightening force for the magnetic steel assembly 7, which can effectively prevent the magnetic steel assembly 7 from falling off in the axial direction, improve the safety of the actuator 10 during operation, and also has a buffering and damping effect, which can reduce the influence of vibration and impact on the internal components of the actuator 10, thereby improving the stability and reliability of the actuator 10.

[0098] Optionally, the second elastic support 82 can be a spring, a rubber elastic body, an air spring or other elastic elements. For example Figure 3 As shown, the second elastic support 82 is a spring.

[0099] In some embodiments of the present application, refer to Figure 3As shown, the actuator 10 further comprises a third elastic support 83 located within the annular space 13, the third elastic support 83 abutting against the first housing body 11 and the second housing stop wall 23. Specifically, the third elastic support 83 supports the first housing 1 and the second housing 2, further coupling the axial movement space of the first housing 1 and the second housing 2, which is more conducive to meeting the space requirements of the vehicle 100 arrangement, while ensuring that the first housing 1 and the second housing 2 can still maintain close contact when subjected to external forces, which helps to maintain the stability of the internal components of the actuator 10. The third elastic support 83 also provides a buffering and damping effect, avoiding sudden changes in the relative movement speed between the first housing 1 and the second housing 2, and reducing the impact of vibration and impact on the internal components of the actuator 10, thereby improving the stability and reliability of the actuator 10.

[0100] Optionally, the third elastic support 83 can be a spring, a rubber elastic body, an air spring or other elastic elements. For example Figure 3 As shown, the third elastic support 83 is a spring.

[0101] Specifically, through the joint action of the first elastic support 81 and the third elastic support 83, the first housing 1 and the second housing 2 are further coupled to the axial movement space, which is more conducive to meeting the space requirements of the vehicle 100 arrangement.

[0102] In some embodiments of the present application, as shown in Figure 3 , Figure 4 , Figures 9-11 As shown, the outer peripheral wall of the second housing body 22 is provided with a limiting structure 222, which is used to limit the maximum limit position of the first housing 1 and the second housing 2 moving towards each other. Thus, the limiting structure 222 ensures that the first housing 1 and the second housing 2 do not exceed the predetermined range when moving relatively, thereby avoiding excessive compression of the first housing 1 and the second housing 2, which helps to protect the internal components of the actuator 10 from damage, improves the service life of the actuator 10, and enhances the structural stability of the actuator 10.

[0103] In some embodiments of the present application, as shown in Figure 2 , Figure 11 As shown, the second housing body 22 further comprises a reinforcing portion 223, which is a triangular rib plate, one end of the reinforcing portion 223 supporting the second flange 221. Thus, the structural stress of the second housing body 22 is reduced (mainly at the second flange 221), ensuring the reliability of the structural strength of the second housing 2.

[0104] In some embodiments of the present application, as shown in Figure 3 , Figures 9-14As shown, the second housing body 22 has a fork arm connecting structure 224, and the fork arm 6 has a housing connecting structure 633, and the fork arm connecting structure 224 and the housing connecting structure 633 are combined to fasten the fork arm 6 and the second housing body 22.

[0105] In some embodiments of the present application, referring to Figure 3 , Figures 9-14 As shown, the fork arm 6 includes a fork arm flange 63, and the housing connecting structure 633 is arranged on the fork arm flange 63.

[0106] Alternatively, the connection between the fork arm 6 and the second housing body 22 can be by means of threaded fasteners, welding, rivet connection, etc. For example, as shown in Figure 3 , Figure 11 As shown, the fork arm 6 and the second housing body 22 are connected by means of threaded fasteners, and correspondingly, one of the housing connecting structure 633 and the fork arm connecting structure 224 is an internal thread hole, and the other is a light hole; or, the housing connecting structure 633 and the fork arm connecting structure 224 are both light holes.

[0107] In some embodiments of the present application, referring to Figure 3 , Figures 9-11 As shown, the second housing 2 also has a large-diameter surface 24, and the outer diameter d1 of the large-diameter surface 24 is greater than the outer diameter d2 of the second matching cylindrical surface 21, and the limiting structure 222 is formed as a stepped connecting surface of the large-diameter surface 24 and the second matching cylindrical surface 21, or the limiting structure 222 is a limiting ring installed on the outer circumferential surface of the second housing 2. Specifically, the design of the large-diameter surface 24 increases the outer diameter of the second housing 2, improves the structural strength of the second housing 2, thereby enhancing the overall stability and durability of the actuator 10. The limiting structure 222 as a stepped connecting surface of the large-diameter surface 24 and the second matching cylindrical surface 21, or a limiting ring installed on the outer circumferential surface of the second housing 2, can clearly define the maximum relative displacement between the first housing 1 and the second housing 2, which helps to prevent excessive movement between the first housing 1 and the second housing 2, and ensures the normal operation of the actuator 10.

[0108] In embodiments of the present application, referring to Figure 11 As shown, the limiting structure 222 is formed as a stepped connecting surface of the large-diameter surface 24 and the second matching cylindrical surface 21. Thus, the limiting structure 222 is integrated with the second housing 2, simplifying the production and installation process and saving costs.

[0109] In some embodiments not shown in the drawings, the limiting structure 222 is a limiting ring installed on the outer circumferential surface of the second housing 2. Thus, the limiting structure 222 can be selectively detached and installed from the second housing 2, so that the limiting structure 222 can be adjusted according to actual needs, saving maintenance costs.

[0110] In some embodiments of the present application, referring toFigures 12-14 As shown, the fork arm 6 comprises a fork arm body 62 and a fork arm flange 63, the fork arm flange 63 is connected with the fork arm body 62, the fork arm flange 63 has a positioning stop 631 matched with the inner wall of the second shell 2, the fork arm flange 63 is installed on the second shell 2, the fork arm flange 63 has a stepped mounting surface 632, the guide rod 4 comprises a guide rod body 41 and a guide rod seat 42, the guide rod body 41 extends into the guide cavity 122 and is guided matched with the guide cavity 122, the guide rod seat 42 comprises a stepped mounting seat 421 matched with the stepped mounting surface 632, the guide rod seat 42 has a flange connecting structure 422, the fork arm flange 63 has a rod connecting structure, the flange connecting structure 422 and the rod connecting structure are connected to connect the guide rod seat 42 with the fork arm flange 63.

[0111] Specifically, the fork arm flange 63 and the inner wall of the second shell 2 are matched through the positioning stop 631, which ensures the accurate positioning and stable installation of the fork arm 6 in the second shell 2, and improves the overall structural stability of the actuator 10. The stepped mounting seat 421 is matched with the stepped mounting surface 632, and the flange connecting structure 422 is combined with the rod connecting structure to connect the guide rod seat 42 with the fork arm flange 63, which ensures the accurate positioning of the fork arm flange 63 and the guide rod seat 42 during installation, helps to improve the assembly accuracy of the actuator 10, and reduces the performance decline or failure problems caused by assembly errors. The guide matching of the guide rod body 41 and the guide cavity 122 ensures the smooth displacement of the fork arm 6 during work, which helps to reduce friction and wear, and improves the motion efficiency and service life of the actuator 10. The stepped mounting seat 421 is matched with the stepped mounting surface 632, which helps to position and install the guide rod seat 42 and the fork arm flange 63, thereby improving the installation accuracy of the guide rod 4 and the fork arm 6.

[0112] Alternatively, the matching mode of the flange connecting structure 422 and the rod connecting structure can be bolt connection, rivet connection, buckle connection, screw connection, etc. For example Figures 12-14 As shown, the matching mode of the flange connecting structure 422 and the rod connecting structure is screw connection.

[0113] In some embodiments, the actuator 10 comprises a stator assembly and a rotor assembly, wherein the stator assembly comprises the first shell 1, the winding assembly 5, the first guide structure 31, the rotor assembly comprises the second shell 2, the fork arm 6, the guide rod 4, the magnetic steel assembly 7, the second guide structure 32, the second elastic support 82.

[0114] Specifically, the sliding fit between the first shell 1 and the second shell 2 enables the actuator 10 to move back and forth in an axial direction. The actuator assembly can move back and forth along the central axis of the stator assembly accompanied by the dynamic compression deformation of the first elastic support member 81 and the third elastic support member 83. Furthermore, the actuator assembly can drive the wheel side structure to move linearly relative to the body side structure, thereby controlling the relative position, relative movement speed, relative acceleration and other parameters between the wheel and the body, thereby achieving fully active control of the body posture. As a result, the actuator 10 achieves fully active real-time adjustment, and has the advantages of fast response time, high thrust, high speed, and high response frequency during vehicle 100 driving, which can significantly improve the driving experience of the occupants.

[0115] See Figure 21 As shown, a vehicle 100 according to another embodiment of the present application includes the actuator 10 of the above embodiment.

[0116] According to the vehicle 100 of the embodiment of the present application, its actuator 10 is guided and matched with the first shell 1 at the nested position of the second shell 2, so that the first shell 1 and the second shell 2 can make relative linear motion while avoiding the problems of shaking, offset and other problems of the actuator 10 due to lack of guiding ability, thereby improving the movement accuracy and stability of the actuator 10, and improving the fully active real-time adjustment function of the actuator 10, so that the actuator 10 can quickly and accurately adjust the relative position or state of the first shell 1 and the second shell 2 as needed, thereby meeting the needs of different application scenarios.

[0117] In the description of this application, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0118] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0119] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate different embodiments or examples described in the specification.

[0120] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary, and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. An actuator (10), characterized in that: include: a first housing (1); and A second shell (2), one end of the second shell (2) is sleeved in the first shell (1), the second shell (2) and the first shell (1) are capable of relative movement in a first direction, and the second shell (2) and the first shell (1) are guided and matched at the sleeved position.

2. The actuator (10) according to claim 1, characterized in that The first shell (1) comprises a first shell body (11) and a center rod (12); the first shell body (11) is connected to the center rod (12); the first shell body (11) is sleeved on the outer periphery of the center rod (12); an annular space (13) is formed between the first shell body (11) and the center rod (12); one end of the second shell (2) extends into the annular space (13); and the second shell (2) is guided and matched with the first shell body (11).

3. The actuator (10) according to claim 2, characterized in that A first guide structure (31) is provided between the second shell (2) and the first shell body (11), wherein the first shell body (11) has a first mating cylindrical surface (111), the second shell (2) has a second mating cylindrical surface (21), the first guide structure (31) is mounted on the first mating cylindrical surface (111), and the second mating cylindrical surface (21) is suitable for slidingly mating with the inner surface of the first guide structure (31).

4. The actuator (10) according to claim 2, characterized in that The first end of the center rod (12) extends out of the annular space (13) in a direction away from the second shell (2), and the second end of the center rod (12) extends out of the annular space (13) in a direction approaching the second shell (2). The first end of the center rod (12) is provided with a vehicle body side connection structure (121).

5. The actuator (10) according to any one of claims 2 to 4, characterized in that: The actuator (10) further includes a guide rod (4), which is directly or indirectly connected and fixed to the second shell (2); the interior of the center rod (12) has a guide cavity (122), the guide rod (4) extends into the guide cavity (122), and the guide rod (4) is guided and matched with the guide cavity (122).

6. The actuator (10) according to claim 5, characterized in that A second guide structure (32) is provided between the outer periphery of the guide rod (4) and the cavity wall of the guide cavity (122); the second guide structure (32) is mounted on the cavity wall of the guide cavity (122); and the second guide structure (32) is slidably engaged with the outer periphery of the guide rod (4).

7. The actuator (10) according to claim 5, characterized in that The center rod (12) has a wiring cavity (123) inside, and a wire hole (124) is provided on the rod peripheral wall of the center rod (12). One end of the wire hole (124) is connected to the wiring cavity (123), and the other end of the wire hole (124) is connected to the outer peripheral surface of the center rod (12); The actuator (10) further includes a winding assembly (5), the winding assembly (5) being mounted on the outer circumference of the center rod (12), the winding assembly (5) having an outlet end (52), and the outlet end (52) extending into the wiring cavity (123) through the wire hole (124).

8. The actuator (10) according to claim 7, characterized in that An anti-rotation structure (125) is provided on the outer circumference of the center rod (12), and the anti-rotation structure (125) is used to prevent the winding assembly (5) from rotating around the outer circumference of the center rod (12).

9. The actuator (10) according to claim 7, characterized in that The guide cavity (122) is communicated with the wiring cavity (123); or, the guide cavity (122) and the wiring cavity (123) are separated by a partition wall.

10. The actuator (10) according to claim 5, characterized in that The actuator (10) further comprises a fork arm (6), wherein the fork arm (6) is connected to the guide rod (4), and the fork arm (6) is also connected to the second housing (2), and a wheel side connection structure (61) is provided on the fork arm (6).

11. The actuator (10) according to claim 10, characterized in that The actuator (10) further includes a magnetic steel assembly (7), wherein the magnetic steel assembly (7) is mounted on the second shell (2), and the second shell (2) includes a second shell body (22) and a second shell stop wall (23), wherein the second shell stop wall (23) is connected to one end of the second shell body (22) extending into the first shell (1), and the second shell stop wall (23) extends radially inward relative to the second shell body (22), and one end of the magnetic steel assembly (7) stops at the second shell stop wall (23).

12. The actuator (10) according to claim 11, characterized in that The actuator (10) further includes: a first elastic support member (81); the first shell body (11) has a first flange (112); the second shell body (22) has a second flange (221); the first elastic support member (81) is located between the first flange (112) and the second flange (221); the first elastic support member (81) abuts against the first flange (112) and the second flange (221).

13. The actuator (10) according to claim 11, characterized in that The actuator (10) further includes a second elastic support member (82), which is arranged between the magnetic steel component (7) and the fork arm (6), and the second elastic support member (82) abuts against the magnetic steel component (7) and the fork arm (6).

14. The actuator (10) according to claim 11, characterized in that The actuator (10) further includes a third elastic support member (83), wherein the third elastic support member (83) is located in the annular space (13), and the third elastic support member (83) abuts against the first shell body (11) and the second shell stop wall (23).

15. The actuator (10) according to claim 11, characterized in that A limiting structure (222) is provided on the outer peripheral wall of the second shell body (22), and the limiting structure (222) is used to limit the maximum limit position of the first shell (1) and the second shell (2) moving in a direction close to each other.

16. The actuator (10) according to claim 15, characterized in that The second shell (2) has a large diameter surface (24) and a second matching cylindrical surface (21), the outer diameter of the large diameter surface (24) is larger than the outer diameter of the second matching cylindrical surface (21), and the limiting structure (222) is formed as a stepped connecting surface between the large diameter surface (24) and the second matching cylindrical surface (21); Alternatively, the limiting structure (222) is a limiting ring installed on the outer peripheral surface of the second shell (2).

17. The actuator (10) according to claim 10, characterized in that The fork arm (6) comprises a fork arm body (62) and a fork arm flange (63), wherein the fork arm flange (63) is connected to the fork arm body (62), the fork arm flange (63) has a positioning stop (631), the positioning stop (631) cooperates with the inner wall of the second shell (2), the fork arm flange (63) is installed on the second shell (2), and the fork arm flange (63) has a stepped mounting surface (632); The guide rod (4) includes a guide rod body (41) and a guide rod seat (42), wherein the guide rod body (41) extends into the guide cavity (122), and the guide rod body (41) is guided and matched with the guide cavity (122), and the guide rod seat (42) includes a step mounting seat (421), wherein the step mounting seat (421) is in contact with the step mounting surface (632), and the guide rod seat (42) is connected to the fork arm flange (63).

18. A vehicle (100), characterized in that The invention comprises an actuator (10) according to any one of claims 1 to 17.

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