Actuator, suspension assembly, and vehicle

Abstract

The application relates to an actuator, a suspension assembly and a vehicle; wherein the actuator comprises: a stator assembly comprising a first type of magnetic source and a second type of magnetic source; a mover assembly comprising at least a movable magnetic conductor made of a magnetic conductive material; wherein the mover assembly is movably connected with the stator assembly; and the second type of magnetic source is arranged at least between the first type of magnetic source and the movable magnetic conductor. The application has the beneficial effect that the driving of the entire mover assembly is realized by the magnetic flux change on the movable magnetic conductor in the mover assembly, thereby avoiding the problem of large mass caused by the use of permanent magnets in the mover assembly, and avoiding the problem of poor reliability caused by the complex structure of the mover assembly.

Description

Technical Field

[0001] This application relates to the field of actuator technology, and more particularly to an actuator, suspension assembly, and vehicle. Background Technology

[0002] Actuators are commonly used in the field of active vibration control. In the active control process, the actuator, as an active execution mechanism, receives the control current sent by the control system and converts it into corresponding actuating force to act on the controlled system, thereby reducing the vibration response of the controlled system.

[0003] In related technologies, actuators are classified into "moving magnet type" and "moving coil type".

[0004] "Moving magnet type" refers to an actuator where the permanent magnet is placed on the mover and the excitation coil is placed on the stator. The mover of a "moving magnet type" actuator has a larger mass, thus limiting its operating frequency. "Moving coil type," on the other hand, places the excitation coil on the mover and the permanent magnet on the stator. While the "moving coil type" reduces the mover mass, its excitation coil, moving with the mover, is highly susceptible to malfunction. Summary of the Invention

[0005] This application provides an actuator, a suspension assembly, and a vehicle, which takes into account both the operating frequency range and operational reliability of the actuator, thereby at least partially solving the aforementioned technical problems.

[0006] To achieve the above objectives, according to a first aspect of this application, an actuator is provided, comprising: a stator assembly including a first type of magnetic source and a second type of magnetic source; a mover assembly including a movable magnetic conductor made of at least a magnetically conductive material; wherein the mover assembly is movably connected to the stator assembly; the second type of magnetic source is at least disposed between the first type of magnetic source and the movable magnetic conductor, so that the movable magnetic conductor tends to move under the combined action of the magnetic fields of the first type of magnetic source and the second type of magnetic source.

[0007] Optionally, in some embodiments of this application, the stator assembly includes: a stator housing for at least accommodating the first type of magnetic source or the second type of magnetic source.

[0008] Optionally, in some embodiments of this application, the stator housing includes: a mover receiving portion for providing a mover receiving space; the moving magnetic conductor is at least partially housed in the mover receiving space.

[0009] Optionally, in some embodiments of this application, the stator housing includes: a first type of receiving portion for providing a first type of receiving space; the first type of magnetic source is at least partially received in the first type of receiving space.

[0010] Optionally, in some embodiments of this application, the stator housing includes: a second type of receiving portion for providing a second type of receiving space; the second type of magnetic source is at least partially housed in the second type of receiving space.

[0011] Optionally, in some embodiments of this application, the second type of accommodating space is disposed between the moving part accommodating space and the first type of accommodating space.

[0012] Optionally, in some embodiments of this application, the mover receiving portion is disposed in the central region of the stator housing; the first type of receiving space and / or the second type of receiving space is disposed in the peripheral region of the stator housing.

[0013] Optionally, in some embodiments of this application, the first type of accommodating portion and / or the second type of accommodating portion are configured as an annular structure surrounding the moving part accommodating portion.

[0014] Optionally, in some embodiments of this application, the first type of receiving portion has an annular receiving cavity to form the first type of receiving space; the second type of receiving portion has a receiving groove that connects the first type of receiving space and the second type of receiving space; and the second type of magnetic source is disposed in the receiving groove.

[0015] Optionally, in some embodiments of this application, the first type of magnetic source and / or the second type of magnetic source are configured to have a ring structure.

[0016] Optionally, in some embodiments of this application, the stator housing includes: two housing end caps and a housing sleeve; the two housing end caps are disposed opposite each other to form the receiving cavity and the receiving groove between them respectively; the housing sleeve is sleeved on the outside of the two housing end caps to close the receiving cavity.

[0017] Optionally, in some embodiments of this application, the first type of magnetic source and the second type of magnetic source are disposed between the two housing end caps.

[0018] Optionally, in some embodiments of this application, the first type of magnetic source is disposed between the second type of magnetic source and the housing sleeve.

[0019] Optionally, in some embodiments of this application, the mover assembly further includes an actuator and a mover support; the mover support is supported between the moving magnetic material and the actuator, so that the moving magnetic material can drive the actuator to move.

[0020] Optionally, in some embodiments of this application, the moving magnetic conductor is configured to have a ring structure; the actuator passes through the moving magnetic conductor.

[0021] Optionally, in some embodiments of this application, the mover support is provided with a plurality of support through holes; the support through holes penetrate the mover support at least in the direction of relative movement between the mover assembly and the stator assembly.

[0022] Optionally, in some embodiments of this application, the mover assembly includes two mover supports; the moving magnet is sleeved on the outside of the two mover supports, so that the two mover supports are at least located at different positions in the relative motion direction between the mover assembly and the stator assembly.

[0023] Optionally, in some embodiments of this application, a limiting groove is formed at the end of the moving magnet, and the moving bracket is embedded in the limiting groove.

[0024] Optionally, in some embodiments of this application, the actuator forms a limiting step, and the actuator bracket is engaged with the limiting step.

[0025] Optionally, in some embodiments of this application, the actuator further includes a reset component for generating a reset force to reset the mover assembly and the stator assembly.

[0026] Optionally, in some embodiments of this application, the reset component includes a reset spring that generates the reset force by restoring itself through deformation.

[0027] Optionally, in some embodiments of this application, the stator assembly includes: a stator housing for at least accommodating the first type of magnetic source or the second type of magnetic source; the mover assembly includes: an actuator configured to be driven by the moving magnetic body to move; and the reset spring is respectively connected to the stator housing and the actuator.

[0028] Optionally, in some embodiments of this application, the reset spring includes: an outer edge portion for engaging with the stator housing; a central portion for engaging with the actuator; and a connecting portion for connecting the outer edge portion and the central portion; a plurality of the connecting portions are spaced apart between the outer edge portion and the central portion, so that the reset spring has a hollow structure between two of the connecting portions.

[0029] Optionally, in some embodiments of this application, the connecting portion is configured to extend along a curve.

[0030] Optionally, in some embodiments of this application, the second type of magnetic source includes: a permanent magnet for generating a preset permanent magnetic flux.

[0031] Optionally, in some embodiments of this application, the second type of magnetic source includes two permanent magnets, with the magnetic poles of the two permanent magnets arranged opposite to each other.

[0032] Optionally, in some embodiments of this application, the second type of magnetic source includes: a fixed-conductivity magnet for forming the magnetic circuit of the permanent magnet flux; the fixed-conductivity magnet is disposed between two of the permanent magnets.

[0033] Optionally, in some embodiments of this application, the first type of magnetic source includes: an excitation coil for generating variable electromagnetic flux.

[0034] Optionally, in some embodiments of this application, the first type of magnetic source includes: a coil support for supporting the excitation coil; the coil support forms a coil space for accommodating the excitation coil; the excitation coil is at least partially disposed in the coil space.

[0035] Optionally, in some embodiments of this application, the permanent magnet, the excitation coil, and the moving magnetic conductor at least partially overlap in the direction of relative motion between the mover assembly and the stator assembly.

[0036] Optionally, in some embodiments of this application, the distance between the second magnetic source and the moving magnetic body ranges from 0.15 mm to 2 mm.

[0037] According to a second aspect of this application, a suspension assembly is provided, including the actuator as described above.

[0038] According to a third aspect of this application, a vehicle is also provided, including the actuator or suspension assembly described above.

[0039] The beneficial effects of this application are as follows: the entire mover assembly is driven by the change of magnetic flux on the moving conductor magnet in the mover assembly, thereby avoiding the problem of large mass caused by the use of permanent magnets in the mover assembly, and avoiding the problem of poor reliability caused by the complex mover assembly structure.

[0040] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0043] Figure 1 This is a schematic diagram of the overall structure of the actuator provided in an exemplary embodiment of this disclosure;

[0044] Figure 2 This is an exploded structural diagram of the actuator provided in an exemplary embodiment of this disclosure;

[0045] Figure 3 yes Figure 2 The diagram shows the structure of the housing end cap and the reset spring in the actuator.

[0046] Figure 4 yes Figure 2 The diagram shows the structure of the actuator component.

[0047] Figure 5 yes Figure 2 The diagram shows a cross-sectional view of the actuator.

[0048] Figure 6 yes Figure 2 A schematic cross-sectional view of the stator housing in the actuator shown.

[0049] Figure 7 yes Figure 2 A cross-sectional view of the actuator assembly and the reset assembly shown.

[0050] Figure 8 yes Figure 2 The diagram shows a cross-sectional view of the moving magnetic conductor in the actuator.

[0051] Figure 9 yes Figure 2 A schematic cross-sectional view of the actuator in the actuator shown.

[0052] Figure 10 yes Figure 2 A schematic diagram of magnetic field lines in one of the operating states of the actuator shown;

[0053] Figure 11 This is a schematic diagram of the overall structure of the vehicle provided in an exemplary embodiment of this disclosure.

[0054] Explanation of reference numerals in the attached figures:

[0055] 1. Vehicles;

[0056] 10. Actuator;

[0057] 100. Stator assembly;

[0058] 110. Type I magnetic sources;

[0059] 111. Excitation coil;

[0060] 112. Coil support;

[0061] 120. Type II magnetic sources;

[0062] 121. Permanent magnet;

[0063] 122. Fixed-beam magnet;

[0064] 130. Stator housing;

[0065] 130a, Moving part;

[0066] 130b, Motor space;

[0067] 130c, Type I receiving section;

[0068] 130d, Class I containment space;

[0069] 130e, Category II containment section;

[0070] 130f, Type II containment space;

[0071] 131. Shell end cap;

[0072] 132. Shell sleeve;

[0073] 200. Moving component;

[0074] 210. Moving magnetic conductor;

[0075] 210a, Limiting groove;

[0076] 220. Acting body;

[0077] 220a, Limiting step;

[0078] 221. Actuating lever;

[0079] 221a. End hole;

[0080] 221b, Stop step;

[0081] 222. Actuation sleeve;

[0082] 230. Moving part support;

[0083] 230a, Through hole in the bracket;

[0084] 300. Reset assembly;

[0085] 310. Reset spring;

[0086] 310a. Hollowed-out structure;

[0087] 311. Outer edge;

[0088] 312. Central Department;

[0089] 312a, Center Hole;

[0090] 313. Connecting part. Detailed Implementation

[0091] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0092] All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0093] As a first aspect of this application, the exemplary embodiments of this disclosure provide an actuator.

[0094] Reference Figures 1 to 10 As shown, the actuator 10 mainly includes a stator assembly 100 and a mover assembly 200.

[0095] The stator assembly 100 includes a first type of magnetic source 110 and a second type of magnetic source 120; the mover assembly 200 includes a moving magnetic conductor 210 made of at least a magnetically conductive material. The mover assembly 200 is movably connected to the stator assembly 100, thereby enabling the mover assembly 200 to move relative to the stator assembly 100.

[0096] To drive the stator assembly 200, a second type of magnetic source 120 is disposed at least between the first type of magnetic source 110 and the moving magnetic conductor 210, so that the magnetic field lines generated by the first type of magnetic source 110 and the second type of magnetic source 120 both pass through the moving magnetic conductor 210 at least. Thus, when the magnetic flux of the stator assembly 100 changes through the moving magnetic conductor 210 via the first type of magnetic source 110 or the second type of magnetic source 120, the magnetic field energy at the air gap changes, generating a driving force that drives the moving magnetic conductor 210 to move. In other words, the moving magnetic conductor 210 tends to move under the combined action of the magnetic fields of the first type of magnetic source 110 and the second type of magnetic source 120.

[0097] Reference Figure 10As shown, according to the "principle of least action," a physical system will adjust its state to minimize the energy increase caused by disturbances. Therefore, when the magnetic flux of one of the first type of magnetic source 110 and the second type of magnetic source 120 changes through the moving magnetic conductor 210, the magnetic field energy at the air gap changes. The moving magnetic conductor 210 has a tendency to move to reduce the change in magnetic field energy and is subjected to a force due to this tendency. This force is related to the magnetic fields generated by the first type of magnetic source 110 and the second type of magnetic source 120, that is, it is related to the change in magnetic flux guided by the moving magnetic conductor 210 of the first type of magnetic source 110 and the second type of magnetic source 120. However, this force is independent of the mass of the moving magnetic conductor 210 itself.

[0098] Based on the above scheme, the mover assembly 200 can obtain the required driving force only through the moving conductor magnet 210, and no other magnetic source is set (the magnetic source will affect the magnetic flux through the moving conductor magnet 210, such as the permanent magnet 121 and the excitation coil 111), while all magnetic source devices are set in the stator assembly 100.

[0099] This avoids the problems caused by setting a large permanent magnet 121 in the mover assembly 200 in order to ensure the magnetic field strength, and also avoids the problem of poor reliability caused by installing the excitation coil 111 and the like in the mover assembly 200.

[0100] In some embodiments of this application, reference is made to Figures 1 to 10 As shown, the stator assembly 100 includes: a stator housing 130; the stator housing 130 is at least used to accommodate a first type of magnetic source 110 or a second type of magnetic source 120.

[0101] Specifically, refer to Figures 5 to 6 As shown, the stator housing 130 includes: a mover receiving portion 130a, a first-type receiving portion 130c, and a second-type receiving portion 130e. The mover receiving portion 130a provides a mover receiving space 130b; the moving magnetic conductor 210 is at least partially housed in the mover receiving space 130b. The first-type receiving portion 130c provides a first-type receiving space 130d; the first-type magnetic source 110 is at least partially housed in the first-type receiving space 130d. The second-type receiving portion 130e provides a second-type receiving space 130f; the second-type magnetic source 120 is at least partially housed in the second-type receiving space 130f. The second-type receiving portion 130e is disposed between the mover receiving portion 130a and the first-type receiving portion 130c.

[0102] More specifically, refer to Figures 5 to 6As shown, a mover receiving portion 130a is disposed in the central region of the stator housing 130; a first type of receiving space 130d and a second type of receiving space 130f are disposed in the peripheral region of the stator housing 130. The first type of receiving space 130d is located on the outer side of the second type of receiving space 130f. The first type of receiving portion 130c and the second type of receiving portion 130e are configured as annular structures surrounding the mover receiving portion 130a; the first type of receiving portion 130c has an annular receiving cavity to form the first type of receiving space 130d; the second type of receiving portion 130e has a receiving groove that connects the first type of receiving space 130d and the second type of receiving space 130f; a second type of magnetic source 120 is disposed in the receiving groove. The first type of magnetic source 110 and / or the second type of magnetic source 120 are configured as having annular structures.

[0103] In this way, the space required to accommodate the first type of magnetic source 110 and the second magnetic source can be guaranteed, and the surrounding design can also ensure that the mover assembly 200 is driven in a relatively stable manner.

[0104] To ensure the stator housing 130 has a reliable structure and is easy to assemble, in some embodiments of this application, reference is made to... Figures 1 to 10 As shown, the stator housing 130 includes two housing end caps 131 and a housing sleeve 132.

[0105] Two housing end caps 131 are disposed opposite each other to form a receiving cavity and a receiving groove between them, respectively; a housing sleeve 132 is fitted over the outside of the two housing end caps 131 to close the receiving cavity. A first type of magnetic source 110 and a second type of magnetic source 120 are disposed between the two housing end caps 131; the first type of magnetic source 110 is disposed between the second type of magnetic source 120 and the housing sleeve 132.

[0106] Reference Figure 10 As shown, the moving magnetic conductor 210, the housing end cap 131, and the housing sleeve 132 can provide the magnetic circuit of the first type of magnetic source 110, thereby giving the first type of magnetic source 110 a complete magnetic circuit. It should be noted that the housing end cap 131 and the housing sleeve 132 can also be made of magnetically conductive material.

[0107] Reference Figure 5 , Figure 6 and Figure 10 As shown, the split design of the two housing end caps 131 can cleverly provide a space for the second type of magnetic source 120, simplifying assembly; at the same time, it can effectively allow the magnetic flux of the second type of magnetic source 120 to pass through the moving conductor 210.

[0108] To further reduce the weight of the actuator assembly 200, in some embodiments of this application, reference is made to... Figures 1 to 10 As shown, the mover assembly 200 also includes an actuator 220 and a mover support 230.

[0109] The mover support 230 is supported between the moving magnetic body 210 and the actuator 220, that is, the moving magnetic body 210 and the actuator 220 are connected as a whole, so that the moving magnetic body 210 can drive the actuator 220 to move.

[0110] The moving magnetic conductor 210 can be configured with a ring structure, allowing the actuator 220 to pass through it. As a further embodiment, the mover support 230 has multiple support through holes 230a; the support through holes 230a penetrate the mover support 230 at least in the direction of relative movement between the mover assembly 200 and the stator assembly 100. The mover assembly 200 can have two mover supports 230; the moving magnetic conductor 210 is sleeved on the outside of the two mover supports 230, so that the two mover supports 230 are at least at different positions in the direction of relative movement between the mover assembly 200 and the stator assembly 100.

[0111] In this way, the mass of the mover assembly 200 is further reduced by the separate lightweight design of the mover support 230.

[0112] In order to make the mover assembly 200 structurally reliable and easy to assemble, in some embodiments of this application, reference is made to Figures 7 to 9 As shown, a limiting groove 210a is formed at the end of the moving magnetic conductor 210, and the moving part support 230 is embedded in the limiting groove 210a. The actuator 220 forms a limiting step 220a, and the moving part support 230 is engaged with the limiting step 220a.

[0113] To assist in resetting the actuator assembly 200, in some embodiments of this application, reference is made to... Figures 1 to 10 As shown, the actuator 10 of this application further includes a reset component 300; the reset component 300 is used to generate a reset force to reset the actuator component 200 and the stator component 100.

[0114] Specifically, the reset assembly 300 includes: a reset spring 310; the reset spring 310 generates a reset force by restoring its own deformation; the reset spring 310 is connected to the stator housing 130 and the actuator 220 respectively.

[0115] Reference Figure 2 and Figure 3As shown, in a specific embodiment, the reset spring 310 includes: an outer edge portion 311, a central portion 312, and a connecting portion 313. The outer edge portion 311 is used to connect to the stator housing 130; the central portion 312 is used to connect to the actuator 220; the connecting portion 313 is used to connect the outer edge portion 311 and the central portion 312; a plurality of connecting portions 313 are spaced apart between the outer edge portion 311 and the central portion 312, thereby forming a hollow structure 310a between two connecting portions 313 in the reset spring 310; the connecting portion 313 can be configured to extend along a curve.

[0116] Understandably, the bending and hollowing design of the connecting part 313 can further improve the rebound effect based on the elasticity of the reset spring material 310 itself.

[0117] In order to achieve bidirectional driving of the moving magnetic conductor 210, in some embodiments of this application, reference is made to... Figures 1 to 10 As shown, the second type of magnetic source 120 includes: a permanent magnet 121; the permanent magnet 121 is used to generate a preset permanent magnet flux.

[0118] More specifically, refer to Figure 5 and Figure 10 As shown, the second type of magnetic source 120 includes two permanent magnets 121, with the magnetic poles of the two permanent magnets 121 arranged opposite to each other. Specifically, referring to... Figure 5 As shown, in the actuation direction of the actuator, that is, the S pole of one permanent magnet is close to the S pole of another permanent magnet, or the two N poles can be close together. The second type of magnetic source 120 also includes: a fixed-conducting magnet 122; the fixed-conducting magnet 122 is used to form the magnetic circuit of the permanent magnet flux; the fixed-conducting magnet 122 serves to provide support between the two permanent magnets 121 on the one hand, and to provide the magnetic circuit of the permanent magnet flux on the other hand. The first type of magnetic source 110 includes: an excitation coil 111; the excitation coil 111 is used to generate variable electromagnetic flux.

[0119] Reference Figure 10 As shown, at the air gap where the moving magnetic conductor 210 overlaps with the upper end of the housing end cap 131, the magnetic flux is the permanent magnet flux Φ generated by the permanent magnet 121. m The electromagnetic flux Φ generated by the excitation coil 111 E Superposition: Φ = Φ m +Φ E Let the height of the overlapping portion at the upper end be h1 and the radius be r. The magnetic reluctance at the air gap is: R1=δ / (μ0*r*h1), where δ is the air gap width and μ0 is the air permeability. At the air gap where the moving magnetic conductor 210 overlaps with the lower end of the shell end cap 131, the magnetic flux is the permanent magnet flux Φ generated by the permanent magnet 121. m The electromagnetic flux Φ generated by the excitation coil 111 E The offset: Φ = Φ m -ΦE Let the height of the overlapping portion at the lower end be h2, the radius be r, and the magnetic reluctance at the air gap be: R2=δ / (μ0*r*h2). The total magnetic field energy is:

[0120] W = 1 / 2 * (Φ m +Φ E )^2*R1+1 / 2*(Φ m -Φ E )^2*R2.

[0121] It is understandable that when the electromagnetic flux Φ E When the total magnetic field energy W increases, according to the "principle of least action," the system needs to reduce the magnetic reluctance R1 at the upper overlapping air gap and increase the magnetic reluctance R2 at the lower overlapping air gap to counteract the increase in total magnetic field energy. This means increasing the height h1 of the upper overlapping area between the moving magnetic conductor 210 and the housing end cover 131, and decreasing the height h2 of the lower overlapping area between the moving magnetic conductor 210 and the housing end cover 131. The moving magnetic conductor 210 then tends to move upwards and receives an upward force, causing the mover assembly 200 to move upwards. If the direction of the current in the control excitation coil 111 is different from that in the case of magnetic reluctance, the system must be able to counteract the increase in total magnetic field energy. Figure 10 The opposite electromagnetic flux, as shown, causes the mover assembly 200 to move downwards according to the same principle.

[0122] In this way, the driving direction and driving force of the mover assembly 200 can be controlled by controlling the current of the excitation coil 111.

[0123] To protect the excitation coil 111, in some embodiments of this application, reference is made to... Figure 5 As shown, the first type of magnetic source 110 includes: a coil support 112, which is used to support the excitation coil 111; wherein, the coil support 112 forms a coil space for accommodating the excitation coil 111, and the excitation coil 111 is at least partially disposed in the coil space; that is, the coil support 112 can cover the excitation coil 111.

[0124] To ensure the aforementioned driving effect, in some embodiments of this application, reference is made to... Figure 5 As shown, the permanent magnet 121, the excitation coil 111, and the moving magnetic conductor 210 overlap at least partially in the direction of relative motion between the mover assembly 200 and the stator assembly 100; it is understood that these overlaps are arranged so that the permanent magnet flux and the electromagnetic flux can be superimposed at the air gap between the moving magnetic conductor 210 and the housing end cover 131.

[0125] Furthermore, the distance between the second magnetic source 120 and the moving magnetic conductor 210 (also referred to as the air gap width between the housing end cap 131 and the fixed magnetic conductor 122, i.e., the radial distance) ranges from 0.15mm to 2mm. As a further option, this range can also be from 0.4mm to 0.6mm. The distance between the end cap 131 and the fixed magnetic conductor 122 and the moving magnetic conductor 210 will affect the permanent magnet flux of the moving magnetic conductor 210. Ideally, this value should be infinitely close to 0. However, due to the working characteristics of the actuator 10, this value cannot be too small to ensure operational stability and avoid scratches. Therefore, the distance between the second magnetic source and the moving magnetic conductor 210 needs to be set within a suitable numerical range.

[0126] As a second aspect of this application, an exemplary embodiment of this disclosure provides a suspension assembly (not shown) including the actuator 10 as described above.

[0127] According to a third aspect of this application, a vehicle 1 is provided, the vehicle 1 including the actuator 10 or suspension assembly as described above.

[0128] The vehicle 1 has all the beneficial effects of the actuator 10 or suspension assembly as described above, which will not be repeated here.

[0129] The vehicle 1 can be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this application does not make any specific restrictions on it.

[0130] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0131] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0132] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0133] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An actuator, characterized in that, include: Stator assembly, including a first type of magnetic source and a second type of magnetic source; The moving part assembly includes a moving magnet; The moving part assembly and the stator assembly are movably connected; the second type of magnetic source is at least disposed between the first type of magnetic source and the moving magnetic conductor.

2. The actuator according to claim 1, characterized in that, in, The stator assembly includes: The stator housing is used to accommodate either the first type of magnetic source or the second type of magnetic source.

3. The actuator according to claim 2, characterized in that, in, The stator housing includes: A mover housing section, used to provide space for accommodating the mover; The moving magnetic conductor is at least partially housed within the moving element receiving space.

4. The actuator according to claim 3, characterized in that, in, The stator housing includes: Type I accommodation, used to provide Type I accommodation space; The first type of magnetic source is at least partially housed within the first type of accommodating space.

5. The actuator according to claim 4, characterized in that, in, The stator housing includes: The second type of accommodation section is used to provide second type of accommodation space; The second type of magnetic source is at least partially housed within the second type of containment space.

6. The actuator according to claim 5, characterized in that, in, The second type of accommodating space is disposed between the moving part accommodating space and the first type of accommodating space.

7. The actuator according to claim 6, characterized in that, in, The moving part is disposed in the central region of the stator housing; the first type of accommodating space and / or the second type of accommodating space is disposed in the peripheral region of the stator housing.

8. The actuator according to claim 7, characterized in that, in, The first type of accommodating portion and / or the second type of accommodating portion are configured as an annular structure surrounding the moving part accommodating portion.

9. The actuator according to claim 8, Its features are, in, The first type of receiving portion has an annular receiving cavity to form the first type of receiving space; the second type of receiving portion has a receiving groove that connects the first type of receiving space and the second type of receiving space. The second type of magnetic source is disposed in the receiving groove.

10. The actuator according to claim 9, characterized in that, in, The first type of magnetic source and / or the second type of magnetic source are constructed to have a ring structure.

11. The actuator according to claim 9, Its features are, The stator housing includes: two housing end caps and a housing sleeve; The two housing end caps are disposed opposite each other to form the receiving cavity and the receiving groove between them, respectively; the housing sleeve is fitted over the outside of the two housing end caps to close the receiving cavity.

12. The actuator according to claim 11, characterized in that, in, The first type of magnetic source and the second type of magnetic source are disposed between the two end caps of the housing.

13. The actuator according to claim 12, characterized in that, in, The first type of magnetic source is disposed between the second type of magnetic source and the housing sleeve.

14. The actuator according to claim 1, characterized in that, in, The mover assembly also includes an actuator and a mover support; The moving part support is supported between the moving magnetic body and the actuator, so that the moving magnetic body can drive the actuator to move.

15. The actuator according to claim 14, characterized in that, in, The moving magnetic conductor is constructed to have a ring structure; the actuator passes through the moving magnetic conductor.

16. The actuator according to claim 15, characterized in that, in, The mover support is provided with multiple support through holes; the support through holes penetrate the mover support at least in the direction of relative movement between the mover assembly and the stator assembly.

17. The actuator according to claim 16, characterized in that, in, The mover assembly includes two mover supports; the moving magnetic conductor is sleeved on the outside of the two mover supports, so that the two mover supports are at least located at different positions in the relative motion direction between the mover assembly and the stator assembly.

18. The actuator according to claim 17, characterized in that, in, The end of the moving magnetic conductor is formed with a limiting groove, and the moving support is embedded into the limiting groove.

19. The actuator according to claim 17, characterized in that, in, The actuator forms a limiting step, and the actuator bracket is engaged with the limiting step.

20. The actuator according to claim 1, characterized in that, Also includes: A reset component is used to generate a reset force that resets the mover assembly and the stator assembly.

21. The actuator according to claim 20, characterized in that, in, The reset component includes: The reset spring generates the reset force through its own deformation recovery.

22. The actuator according to claim 21, characterized in that, in, The stator assembly includes: Stator housing, for at least accommodating the first type of magnetic source or the second type of magnetic source; The moving part component includes: An actuator is configured to move by the moving magnetic body; The reset spring is connected to the stator housing and the actuator, respectively.

23. The actuator according to claim 22, Its features are, The reset spring includes: The outer edge portion is used for attachment to the stator housing; The central portion is used for attachment to the actuator; A connecting portion is used to connect the outer edge portion and the central portion; The multiple connecting portions are spaced apart between the outer edge and the central portion, so that the reset spring has a hollow structure between the two connecting portions.

24. The actuator according to claim 23, characterized in that, in, The connecting portion is constructed to extend along a curve.

25. The actuator according to any one of claims 1 to 24, characterized in that, in, The second type of magnetic source includes: Permanent magnets are used to generate a preset permanent magnetic flux.

26. The actuator according to claim 25, characterized in that, in, The second type of magnetic source includes two permanent magnets, with the magnetic poles of the two permanent magnets arranged opposite each other.

27. The actuator according to claim 26, characterized in that, in, The second type of magnetic source includes: A fixed-conductivity magnet is used to form the magnetic circuit of the permanent magnet flux; The fixed-guide magnet is disposed between the two permanent magnets.

28. The actuator according to claim 25, characterized in that, in, The first type of magnetic source includes: Excitation coils are used to generate variable electromagnetic flux.

29. The actuator according to claim 28, Its features are, The first type of magnetic source includes: A coil support is used to support the excitation coil; The coil support forms a coil space to accommodate the excitation coil; the excitation coil is at least partially disposed in the coil space.

30. The actuator according to claim 28, characterized in that, in, The permanent magnet, the excitation coil, and the moving magnetic conductor at least partially overlap in the direction of relative motion between the mover assembly and the stator assembly.

31. The actuator according to any one of claims 1 to 24, characterized in that, in, The distance between the second type of magnetic source and the moving magnetic body ranges from 0.15 mm to 2 mm.

32. A suspension assembly, characterized in that, include: The actuator according to any one of claims 1 to 31.

33. A vehicle, characterized in that, include: The actuator according to any one of claims 1 to 31 or the suspension assembly according to claim 32.

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