Magnetic conductive assembly, actuator, suspension assembly and vehicle

Abstract

The invention relates to a magnetic conductive assembly, an actuator, a suspension assembly and a vehicle, the magnetic conductive assembly is used for forming the actuator, and the magnetic conductive assembly comprises a magnetic conductive device and a stator assembly or a rotor assembly used for forming the actuator; the magnetic conductive device comprises a plurality of magnetic pole parts used for providing magnetic poles of the magnetic conductive device; wherein the plurality of magnetic pole parts are arranged at different positions in the circumferential direction of the actuating axis at intervals, so that interval spaces are formed among the plurality of magnetic pole parts. The beneficial effects of the invention lie in that the magnetic pole parts arranged at intervals limit the flow path of the magnetic flux, thereby reducing the adverse effect generated by the vortex flow in the magnetizer.

Description

Technical Field

[0001] This application relates to the technical field of actuators, and particularly to a magnetic conductive component, an actuator, a suspension assembly and a vehicle. Background Art

[0002] An electromagnetic actuator can generate a magnetic field by using an excitation coil to output a driving force in the driving direction; and can control the high-frequency change of the current in the excitation coil so that the driving force output by the electromagnetic actuator has a high response frequency. Therefore, the electromagnetic actuator can usually be used to realize functions such as active vibration reduction of the system.

[0003] In the related art, due to the changing magnetic field generated by the excitation coil of the electromagnetic actuator, eddy currents (also known as vortex currents) are generated. When the eddy currents flow in the magnetic conductor, they will generate resistance to the change of the magnetic induction intensity that the magnetic conductor should have, thereby affecting the response ability of the driving force, causing driving force loss and phase delay, and since the eddy currents will cause the magnetic conductor to heat up, the magnetic conductivity of the magnetic conductor will decrease. Summary of the Invention

[0004] Embodiments of this application provide a magnetic conductive component, an actuator, a suspension assembly and a vehicle, which suppress the flow of eddy currents in the magnetic conductor to at least partially solve the above technical problems.

[0005] To achieve the above object, according to the first aspect of this application, a magnetic conductive component for constituting an actuator is provided. The magnetic conductive component includes: A magnetic conductor for constituting the stator assembly or the mover assembly of the actuator; The magnetic conductor includes: A plurality of magnetic pole portions for providing the magnetic poles of the magnetic conductor; Wherein, the plurality of magnetic pole portions are arranged at different positions in the circumferential direction of the driving axis at intervals so that an interval space is formed between the plurality of magnetic pole portions.

[0006] Optionally, in some embodiments of this application, the magnetic pole portion extends at least along the radial direction of the driving axis.

[0007] Optionally, in some embodiments of this application, two of the magnetic pole portions are symmetrically arranged on both sides of the driving axis.

[0008] Optionally, in some embodiments of this application, the plurality of magnetic pole portions are symmetrically arranged around the driving axis.

[0009] Optionally, in some embodiments of this application, two adjacent magnetic pole portions in the circumferential direction of the driving axis are used to provide different magnetic poles.

[0010] Optionally, in some embodiments of the present application, the magnetic pole portion has at least one radial end face that intersects the radial direction of the actuation axis.

[0011] Optionally, in some embodiments of the present application, the radial end face is configured as an arc-shaped curved surface.

[0012] Optionally, in some embodiments of the present application, the radial end face is configured as an arc surface with the actuation axis as the central axis.

[0013] Optionally, in some embodiments of the present application, the sum of the radian measures of the radial end faces of multiple magnetic pole portions is less than or equal to 270 degrees.

[0014] Optionally, in some embodiments of the present application, the sum of the radian measures occupied by multiple magnetic pole portions in the circumferential direction of the actuation axis is less than or equal to 270 degrees.

[0015] Optionally, in some embodiments of the present application, the magnetic conductor includes: A magnetic conductor body having multiple magnetic pole portions.

[0016] Optionally, in some embodiments of the present application, the magnetic conductor body further includes: A connecting portion for connecting multiple magnetic pole portions.

[0017] Optionally, in some embodiments of the present application, the connecting portion extends at least along the circumferential direction of the actuation axis.

[0018] Optionally, in some embodiments of the present application, the magnetic conductor includes: Multiple magnetic conductor bodies, where one magnetic conductor body has one magnetic pole portion.

[0019] Optionally, in some embodiments of the present application, the magnetic conductor further includes: A permanent magnet disposed in the spacer space.

[0020] Optionally, in some embodiments of the present application, the magnetic conductor assembly includes two magnetic conductors with different positions.

[0021] Optionally, in some embodiments of the present application, in the circumferential direction of the actuation axis, the magnetic pole portions of one magnetic conductor are correspondingly arranged with the magnetic pole portions of another magnetic conductor.

[0022] Optionally, in some embodiments of the present application, in the radial direction of the actuation axis, the magnetic pole portions of one magnetic conductor are correspondingly arranged inside the magnetic pole portions of another magnetic conductor.

[0023] Optionally, in some embodiments of the present application, in the axial direction of the actuation axis, the magnetic pole portions of one of the magnetic conductors at least partially overlap with the magnetic pole portions of the other magnetic conductor.

[0024] According to a second aspect of the present application, there is also provided an actuator, which includes the magnetic conduction assembly as described above.

[0025] Optionally, in some embodiments of the present application, the actuator includes: A stator assembly, including at least one of the magnetic conductors; A rotor assembly, including at least another one of the magnetic conductors.

[0026] Optionally, in some embodiments of the present application, the magnetic conductor included in the stator assembly is defined as a fixed magnetic conductor, and the magnetic conductor included in the rotor assembly is defined as a moving magnetic conductor; Wherein, the stator assembly includes two of the fixed magnetic conductors, and the two fixed magnetic conductors are arranged at different positions in the axial direction of the actuation axis.

[0027] Optionally, in some embodiments of the present application, the moving magnetic conductor is at least partially arranged between the two fixed magnetic conductors, so that the magnetic flux between the two fixed magnetic conductors at least partially passes through the moving magnetic conductor.

[0028] Optionally, in some embodiments of the present application, the magnetic conductor included in the fixed magnetic conductor is defined as a fixed magnetic body; the magnetic pole portion included in the fixed magnetic body is defined as a fixed magnetic pole portion; the fixed magnetic body has a plurality of the fixed magnetic pole portions.

[0029] Optionally, in some embodiments of the present application, the actuator further includes: An exciting coil, used for generating an electromagnetic field; Wherein, the exciting coil is installed on the fixed magnetic conductor.

[0030] Optionally, in some embodiments of the present application, the exciting coil is sleeved on the fixed magnetic pole portion.

[0031] Optionally, in some embodiments of the present application, the actuator further includes: A coil bracket, used for fixing the exciting coil; Wherein, the coil bracket is fixedly connected to the fixed magnetic pole portion.

[0032] Optionally, in some embodiments of the present application, the fixed magnetic body includes: An insulating layer, made of at least insulating material; A plurality of fixed magnetic sheets, stacked in the axial direction of the actuation axis; Wherein, the insulating layer is at least disposed between two of the stationary magnetic sheets to insulate adjacent ones of the stationary magnetic sheets from each other.

[0033] Optionally, in some embodiments of the present application, the magnetic conductor of the moving magnetic device is defined as a moving magnetic conductor; the magnetic pole portion of the moving magnetic conductor is defined as a moving magnetic pole portion; and the moving magnetic device has a plurality of the moving magnetic conductors.

[0034] Optionally, in some embodiments of the present application, the rotor assembly further includes: A rotor bracket for mounting a plurality of the moving magnetic conductors.

[0035] Optionally, in some embodiments of the present application, the rotor assembly further includes: An actuator for outputting an actuating force; Wherein, the rotor bracket is respectively connected to the moving magnetic conductor and the actuator.

[0036] Optionally, in some embodiments of the present application, the actuator further includes: A reset assembly for resetting the rotor assembly to a preset position relative to the stator assembly.

[0037] Optionally, in some embodiments of the present application, the stator assembly further includes: A stator housing for providing a space for accommodating the stationary magnetic device; Wherein, the reset assembly includes: A reset spring piece respectively connected to the actuator and the stator housing.

[0038] Optionally, in some embodiments of the present application, the rotor bracket, the actuator and the stator housing are made of non-magnetic materials.

[0039] Optionally, in some embodiments of the present application, the actuator and the stator assembly form a sliding connection along the axial direction of the actuating axis.

[0040] Optionally, in some embodiments of the present application, the stator assembly is disposed on the outer side in the radial direction of the actuating axis; the rotor assembly is disposed on the inner side in the radial direction of the actuating axis.

[0041] According to a third aspect of the present application, there is also provided a suspension assembly including the magnetic conduction assembly or the actuator as described above.

[0042] According to a fourth aspect of the present application, there is also provided a vehicle including the magnetic conduction assembly, the actuator or the suspension assembly as described above.

[0043] The beneficial effects of the present application are as follows: By arranging the magnetic pole parts at intervals, the flow path of the magnetic flux is restricted, thereby reducing the adverse effects generated in the magnetic conductor due to the flow of eddy currents.

[0044] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0045] In order to more completely understand the present application and its beneficial effects, the following description will be made in conjunction with the drawings, where the same reference numerals in the following description represent the same parts.

[0046] Figure 1 is a schematic structural diagram of a magnetic conductor provided in an exemplary embodiment of the present disclosure; Figure 2 is Figure 1 an exploded structural diagram of the magnetic conductor shown; Figure 3 is Figure 1 a schematic structural diagram of the magnetic conductor shown after installing the exciting coil; Figure 4 is a schematic structural diagram of another magnetic conductor provided in an exemplary embodiment of the present disclosure; Figure 5 is Figure 4 a sectional structural diagram of the magnetic conductor shown; Figure 6 is a schematic structural diagram of a magnetic conduction component provided in an exemplary embodiment of the present disclosure; Figure 7 is Figure 6 a sectional structural diagram of the magnetic conduction component shown; Figure 8 is Figure 6 a magnetic field diagram of the magnetic conduction component shown in the first magnetic induction state; Figure 9 is Figure 6 a magnetic field diagram of the magnetic conduction component shown in the second magnetic induction state; Figure 10 is Figure 6 a magnetic pole diagram of a pair of magnetic pole parts of the magnetic conduction component shown; Figure 11 is Figure 6 a schematic diagram of magnetic induction lines and eddy currents of the magnetic conduction component shown in the first magnetic induction state; Figure 12 Is Figure 6 A schematic diagram of magnetic induction lines and eddy currents of the magnetic conduction component shown in the second magnetic induction state; Figure 13 Is Figure 6 A schematic diagram of magnetic induction lines and eddy currents of a pair of magnetic pole parts of the magnetic conduction component shown; Figure 14 A schematic structural diagram of an actuator provided in an exemplary embodiment of the present disclosure; Figure 15 Is Figure 14 A semi-sectional structural diagram of the actuator shown; Figure 16 Is Figure 14 A sectional structural diagram of the actuator shown; Figure 17 A schematic structural diagram of a vehicle provided in an exemplary embodiment of the present disclosure.

[0047] Description of reference numerals: 1. Vehicle; 10. Actuator; 10a. Actuating axis; 20. Stator assembly; 30. Rotor assembly; 31. Rotor bracket; 31a. Sleeve; 31b. Hub; 40. Excitation coil; 50. Coil bracket; 60. Actuating member; 70. Reset assembly; 71. Reset spring piece; 80. Stator housing; 81. End cover; 82. Outer shell; 100. Magnetic conduction component; 200. Fixed magnetic conductor; 200a. Spacing space; 210. Fixed magnetic body; 210a. Magnetic conduction sheet; 211. Fixed magnetic pole part; 211a. Fixed diameter end face; 212. Connecting part; 300. Moving magnetic conductor; 310. Moving magnetic body; 311. Moving magnetic pole part; 311a. Moving diameter end face; 320. Permanent magnet. Detailed implementation manners

[0048] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present application.

[0049] As the first aspect of the present application, the magnetic conductor of the present application will be introduced below in combination with Figures 1 to 3 the fixed magnetic conductor 200 and the moving magnetic conductor 300 shown.

[0050] As an implementation manner of the magnetic conductor of the present application, referring to Figure 1 , Figure 2 and Figure 3 shown, the present application provides a fixed magnetic conductor 200, and the fixed magnetic conductor 200 can be applied to the actuator 10.

[0051] The fixed magnetic conductor 200 of the present application includes: a plurality of fixed magnetic pole portions 211; the fixed magnetic pole portions 211 are used to provide the magnetic poles of the fixed magnetic conductor 200, that is, when the fixed magnetic conductor 200 provides a magnetic induction line path, the magnetic field strength at the fixed magnetic pole portions 211 is the strongest. The plurality of fixed magnetic pole portions 211 of the fixed magnetic conductor 200 are arranged at different positions in the circumferential direction of the actuation axis 10a at intervals, so that an interval space 200a is formed between the plurality of fixed magnetic pole portions 211.

[0052] In this way, referring to Figures 8 to 13 shown, due to the interval arrangement of the fixed magnetic pole portions 211, the eddy currents generated by the magnetic induction lines guided by the fixed magnetic conductor 200 cannot circulate along the circumferential direction of the actuation axis 10a, but mainly flow along the axial direction of the actuation axis 10a. In this way, the eddy currents are undoubtedly suppressed from the root cause of the eddy current generation.

[0053] It should be noted that the actuation axis 10a is the rotation axis of a virtual shaft body for the convenience of explaining the relative position relationship in the present application, and the axial direction, circumferential direction and radial direction of this virtual shaft body are used as the axial direction, circumferential direction and radial direction of the actuation axis 10a; this does not mean that the actuation axis 10a must be set at the central position of some physical structures.

[0054] For the convenience of explanation below, unless otherwise specified, the axial direction, circumferential direction and radial direction mentioned below all refer to the axial direction, circumferential direction and radial direction with the actuation axis 10a as the reference axis.

[0055] As a specific solution, the fixed magnetic conductor 200 of the present application may be composed of a single fixed magnetic body 210, or may be composed of a combination of multiple fixed magnetic bodies 210. When the fixed magnetic conductor 200 is composed of a single fixed magnetic body 210, the fixed magnetic conductor 200 can be considered equivalent to the fixed magnetic body 210.

[0056] Figures 1 to 16 In the solution shown, the fixed magnetic conductor 200 is composed of a single fixed magnetic body 210.

[0057] More specifically, the fixed magnetic body 210 may be formed by laminating multiple magnetic conduction sheets 210a in the axial direction of the actuation axis 10a, and an insulating layer (not shown in the figure) may be provided between two magnetic conduction sheets 210a, thereby further hindering the flow of eddy currents along the axial direction of the actuation axis 10a.

[0058] More specifically, referring to Figure 1 、 Figure 2 and Figure 3 shown, the fixed magnetic pole portion 211 extends at least along the radial direction of the actuation axis 10a.

[0059] This can make the magnetic induction lines of the fixed magnetic pole portion 211 mainly extend along the radial direction of the actuation axis 10a, so that the eddy currents of the fixed magnetic pole portion 211 also mainly flow along the axial direction of the actuation axis 10a.

[0060] As a specific solution, referring to Figure 1 、 Figure 2 and Figure 3 shown, two fixed magnetic pole portions 211 are symmetrically arranged on both sides of the actuation axis 10a. That is, the fixed magnetic body 210 has an even number of fixed magnetic pole portions 211, and every two paired fixed magnetic pole portions 211 are symmetrically arranged on both sides of the actuation axis 10a.

[0061] As a specific solution, referring to Figure 1 、 Figure 2 and Figure 3 shown, multiple fixed magnetic pole portions 211 are symmetrically arranged around the actuation axis 10a.

[0062] More specifically, two adjacent fixed magnetic pole portions 211 in the circumferential direction of the actuation axis 10a are used to provide different magnetic poles.

[0063] That is, two fixed magnetic pole portions 211 arranged opposite to each other in the circumferential direction are used to provide the same magnetic pole, and two adjacent fixed magnetic pole portions 211 in the circumferential direction are used to provide different magnetic poles.

[0064] Referring to Figures 8 to 13 shown, in this way, multiple magnetic field regions can be formed in the circumferential direction of the actuation axis 10a, thereby further separating the regions so that the eddy currents in different regions cannot be coupled.

[0065] As a specific solution, referring to Figure 1 , Figure 2 and Figure 3 shown, the fixed magnetic pole portion 211 has at least one fixed diameter end face 211a that intersects radially with the actuation axis 10a.

[0066] Specifically, the fixed diameter end face 211a can be configured as an arc-shaped curved surface. Further, the fixed diameter end face 211a is configured as an arc surface with the actuation axis 10a as the center axis.

[0067] Referring to Figures 6 to 13 shown, the fixed diameter end face 211a can ensure as small an air gap as possible radially, so as to ensure sufficient magnetic flux between the fixed magnetic conductor 210 and the moving magnetic conductor 310 after the actuator 10 is formed.

[0068] As an alternative solution, the sum of the radian measures of the fixed diameter end faces 211a of the multiple fixed magnetic pole portions 211 is less than 270 degrees, that is, the fixed magnetic pole portions 211 do not occupy all circumferential positions. It can be understood that when the multiple fixed magnetic pole portions 211 are arranged at intervals, the sum of the radian measures occupied by the multiple fixed magnetic pole portions 211 in the circumferential direction of the actuation axis 10a is less than or equal to 270 degrees.

[0069] Further, the sum of the radian measures of the fixed diameter end faces 211a of the multiple fixed magnetic pole portions 211 is greater than or equal to 180 degrees and less than or equal to 270 degrees, that is, the sum of the radian measures occupied by the multiple fixed magnetic pole portions 211 in the circumferential direction of the actuation axis 10a is greater than or equal to 180 degrees and less than or equal to 270 degrees.

[0070] Similarly, referring to Figures 4 to 6 shown, the moving magnetic pole portion 311 has at least one moving diameter end face 311a that intersects radially with the actuation axis 10a.

[0071] Specifically, the moving diameter end face 311a can be configured as an arc-shaped curved surface. Further, the moving diameter end face 311a is configured as an arc surface with the actuation axis 10a as the center axis.

[0072] Referring to Figures 6 to 13 shown, the moving diameter end face 311a can ensure as small an air gap as possible radially, so as to ensure sufficient magnetic flux between the moving magnetic conductor 310 and the moving magnetic conductor 310 after the actuator 10 is formed.

[0073] As an alternative solution, the sum of the radian measures of the moving diameter end faces 311a of the multiple moving magnetic pole portions 311 is less than 270 degrees, that is, the moving magnetic pole portions 311 do not occupy all circumferential positions. It can be understood that when the multiple moving magnetic pole portions 311 are arranged at intervals, the sum of the radian measures occupied by the multiple moving magnetic pole portions 311 in the circumferential direction of the actuation axis 10a is less than or equal to 270 degrees.

[0074] Furthermore, the sum of the radian measures of the radial end faces 311a of the plurality of moving magnetic pole portions 311 is greater than or equal to 180 degrees and less than or equal to 270 degrees, that is, the sum of the radian measures occupied by the plurality of moving magnetic pole portions 311 in the circumferential direction of the operating axis 10a is greater than or equal to 180 degrees and less than or equal to 270 degrees.

[0075] As an alternative, referring to Figure 6 as shown, the distance between the stationary magnetic pole portion 211 and the moving magnetic pole portion 311 can be defined as the air gap length L. When the rotor assembly 30 is reset to the preset position, the dimension of the axial overlap between the stationary magnetic pole portion 211 and the moving magnetic pole portion 311 is defined as the air gap height D, and the dimension of the stationary magnetic pole portion 211 in the axial direction is defined as the stationary magnetic height H, and they need to satisfy H > D > L.

[0076] As a further solution, in the solution of the present application, the above air gap length L, air gap height D, and stationary magnetic height H need to satisfy the following formula: D = a × H; where a is a coefficient less than 1. As a specific solution, the value of a is 0.25.

[0077] Referring to Figure 1 , Figure 2 and Figure 3 as shown, the stationary magnetic conductor 210 further includes: a connecting portion 212. The connecting portion 212 is used to connect the plurality of stationary magnetic pole portions 211.

[0078] More specifically, the connecting portion 212 extends at least along the circumferential direction of the operating axis 10a.

[0079] As an alternative, the connecting portion 212 can be configured to have a circular ring structure, and the stationary magnetic pole portion 211 is a bump connected to the inner side of the circular ring structure.

[0080] In this way, the integration degree of the stationary magnetic conductor 210 can be improved, and each part of a stationary magnetic conductor 210 can be integrally formed after being stacked by a plurality of magnetic conductive sheets 210a.

[0081] Referring to Figure 7 as shown, in order to realize the function of the actuator 10, two stationary magnetic conductors 200 can be provided at different positions in the axial direction. It can be understood that different stationary magnetic conductors 200 in the present application have different magnetic induction states.

[0082] As another implementation manner of the magnetic conductor of the present application, referring to Figures 4 to 5As shown, the moving magnetic conductor 300 of the present application may include a plurality of moving magnetic conductors 310 disposed at different circumferential positions, and each moving magnetic conductor 310 has only one moving magnetic pole portion 311. The plurality of moving magnetic conductors 310 are spaced apart by a mover bracket 31, that is, there is also a spaced space 200a (not marked in the figure) between two moving magnetic conductors 310. The difference is that a permanent magnet 320 is disposed between two moving magnetic conductors 310 in the moving magnetic conductor 300. That is, as a specific solution, the moving magnetic conductor 300 includes a plurality of permanent magnets 320 disposed between two magnetic pole portions.

[0083] In this way, due to its own magnetism, the permanent magnet 320 is equivalent to blocking the magnetic flux, so that the eddy current flowing in the circumferential direction is also suppressed on the moving magnetic conductor 300.

[0084] In addition, with reference to Figures 8 to 13 As shown, since the moving magnetic conductor portions are also spaced apart, the moving magnetic conductor 300 also has the technical effect of suppressing eddy currents brought by the fixed magnetic conductor portion. The difference is that the magnetic induction lines mainly extend axially in the moving magnetic conductor 310. Therefore, the eddy current mainly flows in the plane of the circumferential and radial directions in the moving magnetic conductor 310. In order to prevent the eddy current from forming a larger circulating range along the axial direction, the suppression of the eddy current is achieved by the permanent magnet 320 in the spaced space 200a.

[0085] As an optional solution, the magnetic poles of two permanent magnets adjacent to each other in the circumferential direction of the central axis are symmetrically arranged radially with respect to the central axis.

[0086] As the second aspect of the present application, the magnetic conduction component 100 of the present application is introduced below in conjunction with Figures 6 to 13 As shown, the magnetic conduction component 100 of the present application may include the above-mentioned moving magnetic conductor or fixed magnetic conductor.

[0087] With reference to Figures 6 to 13 As shown, the magnetic conduction component 100 of the present application may include the above-mentioned moving magnetic conductor or fixed magnetic conductor.

[0088] As a specific solution, the magnetic conduction component 100 simultaneously has the above-mentioned moving magnetic conductor and the above-mentioned fixed magnetic conductor; that is, the magnetic conduction component 100 includes two magnetic conductors with different positions.

[0089] As a specific solution, with reference to Figures 6 to 13 As shown, in the circumferential direction, the fixed magnetic pole portion 211 of the fixed magnetic conductor 200 is correspondingly arranged with the moving magnetic pole portion 311 of the moving magnetic conductor 300. That is, in the circumferential direction of the actuating axis 10a, the magnetic pole portion of one magnetic conductor is correspondingly arranged with the magnetic pole portion of the other magnetic conductor. This can better realize the guidance of the magnetic induction lines.

[0090] As a specific solution, with reference to Figures 6 to 13As shown, in the radial direction, the moving magnetic conductor 300 is located at the center, and the fixed magnetic conductor 200 surrounds the moving magnetic conductor 300. The moving magnetic pole portion 311 is located inside the fixed magnetic pole portion 211. That is, in the radial direction of the actuating axis 10a, the magnetic pole portion of one magnetic conductor is correspondingly arranged inside the magnetic pole portion of the other magnetic conductor.

[0091] As a specific solution, referring to Figures 6 to 13 As shown, in the axial direction, the moving magnetic pole portion 311 of the moving magnetic conductor 300 and the magnetic pole portion of the moving magnetic body 310 at least partially overlap. That is, in the axial direction of the actuating axis 10a, the magnetic pole portion of one magnetic conductor and the magnetic pole portion of the other magnetic conductor at least partially overlap.

[0092] More specifically, the moving magnetic pole portion 311 at least partially overlaps with the fixed magnetic pole portion 211 of one of the fixed magnetic conductors 200 in the axial direction.

[0093] As the third aspect of the present application, the actuator 10 of the present application will be introduced below in combination with Figures 14 to 16 the fixed magnetic conductor 200 and the moving magnetic conductor 300 shown.

[0094] Referring to Figures 1 to 16 As shown, the actuator 10 of the present application includes a stator assembly 20 and a rotor assembly 30. Among them, the stator assembly 20 includes the fixed magnetic conductor 200 as described above; the rotor assembly 30 includes the moving magnetic conductor 300 as described above.

[0095] As a specific solution, the stator assembly 20 includes two fixed magnetic conductors 200, and the two fixed magnetic conductors 200 are arranged at different positions in the axial direction of the actuating axis 10a. The moving magnetic conductor 300 is at least partially arranged between the two fixed magnetic conductors 200 so that the magnetic flux between the two fixed magnetic conductors 200 at least partially passes through the moving magnetic conductor 300.

[0096] In this way, by changing the magnetic induction state of the two fixed magnetic conductors 200, the magnetic flux passing through the moving magnetic conductor 300 is changed, and then a magnetic force that can generate the displacement of the rotor assembly 30 can be generated.

[0097] As a more specific solution, the stator assembly 20 and the rotor assembly 30 of the actuator 10 are movably connected, such as forming a sliding connection; the actuator 10 outputs an actuating force along the axis of the actuating axis 10a. And, the stator assembly is arranged on the outer side in the radial direction of the actuating axis 10a; the rotor assembly is arranged on the inner side in the radial direction of the actuating axis 10a. As an optional solution, the moving magnetic conductor 300 has 4 moving magnetic pole portions 311, and the fixed magnetic conductor 200 has 4 corresponding fixed magnetic pole portions 211.

[0098] As a specific solution, referring to Figures 14 to 16As shown, the stator assembly 20 further includes: an exciting coil 40. The exciting coil 40 is used to generate an electromagnetic field; the exciting coil 40 is mounted to the stator magnetic conductor 200. More specifically, the exciting coil 40 is sleeved on the stator pole portion 211.

[0099] To better fix the exciting coil 40, the stator assembly 20 further includes: a coil bracket 50. The coil bracket 50 is used to fix the exciting coil 40; the coil bracket 50 is fixedly connected to the stator pole portion 211. As an alternative, the exciting coil 40 is disposed between two of the coil brackets 50; or, the exciting coil 40 is disposed between two parts of the coil bracket 50.

[0100] Referring to Figures 14 to 16 As shown, a coil bracket 50 can be provided at the root of the stator pole portion 211, and then the exciting coil 40 is sleeved on the stator pole portion 211; finally, another coil bracket 50 is provided at the end of the stator pole portion 211. The coil bracket 50 can be made of a plastic material.

[0101] In this way, the exciting coil 40 can be effectively limited and supported by the coil bracket 50.

[0102] As a specific solution, referring to Figure 4 and Figures 14 to 16 As shown, the mover assembly 30 further includes: an actuator 60. The actuator 60 is used to output an actuating force; wherein, the mover bracket 31 is respectively connected to the mover magnetic conductor 310 and the actuator 60.

[0103] More specifically, the actuator 60 and the stator assembly 20 form a sliding connection along the axial direction of the actuating axis 10a.

[0104] As a further solution, the actuator 60 can be configured to have a rod-like structure, and the mover bracket 31 can be configured to have a sleeve 31a and a hub 31b. The sleeve 31a is sleeved on the actuator 60, the hub 31b is sleeved on the sleeve 31a, and the mover magnetic conductor 310 and the permanent magnet 320 are mounted on the hub 31b. In addition to connecting the mover magnetic conductor 310 and the actuator 60 as a whole, the mover bracket 31 also connects the mover magnetic conductor 310 and the permanent magnet 320 as a whole, that is, it constitutes a mover magnetic conductor 300 of the present application.

[0105] As a specific solution, referring to Figures 14 to 16 As shown, the actuator 10 further includes: a reset assembly 70 and a stator housing 80.

[0106] Among them, the reset assembly 70 is used to reset the mover assembly to a preset position relative to the stator; the stator housing 80 is used to provide a space for accommodating the stator magnetic conductor 200.

[0107] More specifically, the reset component 70 includes: a reset spring piece 71. The reset spring piece 71 is respectively connected to the actuator 60 and the stator housing 80. The reset spring piece 71 has a certain elasticity. The outer edge of the reset spring piece 71 can be embedded into an outer edge card slot (not marked in the figure) formed by the stator housing 80, and the inner edge of the reset spring piece 71 can be embedded into a card slot (not marked in the figure) jointly formed by the actuator 60 and the rotor bracket 31. One of the two reset spring pieces 71 is arranged at the top of the stator housing 80, and the other is arranged at the bottom of the stator housing 80.

[0108] In this way, when the magnetic field generated by the excitation coil 40 disappears, the reset spring piece 71 can reset the actuator 60 through the elastic force.

[0109] As a specific solution, referring to Figure 14 、 Figure 15 and Figure 16 shown, in the actuator 10, the rotor bracket 31, the actuator 60 and the stator housing 80 are made of non-magnetic materials. In this way, eddy currents are avoided from being generated in the rotor bracket 31, the actuator 60 and the stator housing 80.

[0110] As a specific solution, referring to Figure 14 、 Figure 15 and Figure 16 shown, the stator housing 80 can be composed of a cylindrical outer shell 82 and end caps 81 arranged at both ends thereof.

[0111] Referring to Figures 8 to 13 shown, when the actuator 10 of the present application operates, by controlling the current directions of the excitation coils 40 of different fixed magnetic pole parts 211, magnetic poles can be formed in the fixed magnetic pole parts 211.

[0112] Referring to Figure 8 and Figure 9 shown, two opposite fixed magnetic pole parts 211 can be made into magnetic poles of the same sex as needed.

[0113] Referring to Figure 10 shown, different magnetic poles can also be formed for different fixed permeators 200.

[0114] Referring to Figure 11 and Figure 12 shown, corresponding to Figure 8 and Figure 9 shown states, Figure 11 and Figure 12 In, the solid lines represent magnetic induction lines (magnetic flux directions), and the dashed lines represent eddy currents, where, "×" represents the direction perpendicular to the paper surface and into the paper, and "·" represents the direction perpendicular to the paper surface and out of the paper.

[0115] Referring to Figure 11 and Figure 12As shown, in the dimensions in the radial and circumferential directions, the magnetic flux extends circumferentially along the connecting portion 212 and radially along the fixed magnetic pole portion 211; the eddy current generated at this time will flow axially, and due to the presence of the insulating layer axially, the eddy current is suppressed between the insulating layers. At the same time, the magnetic flux of the moving magnetic pole portion 311 mainly extends axially, and the eddy current generated by it flows in the dimensions in the radial and circumferential directions. Since the moving magnetic pole portion 311 is restricted to some regions in the circumferential direction by the permanent magnet 320, that is, the magnetic flux cannot pass through the permanent magnet 320, there is no eddy current flowing completely circumferentially on the moving magnetic conductor 300.

[0116] Referring to Figure 13 As shown, in the dimensions in the radial and axial directions, the magnetic flux between the two axially separated fixed magnetic conductors 200 extends through the moving magnetic conductor 300, and the separated fixed magnetic conductors 200 themselves further restrict the flow of eddy current.

[0117] In summary, in this application, since the eddy current effect is greatly reduced, as the frequency of the excitation current increases, the influence on the electromagnetic force is relatively small.

[0118] As a fourth aspect of this application, this application also provides a suspension assembly (not shown in the figure), and this suspension assembly includes the magnetic conductor, the magnetic conduction assembly 100 or the actuator 10 as above. This suspension assembly has all the beneficial effects of the magnetic conductor, the magnetic conduction assembly 100 and the actuator 10, which will not be elaborated here.

[0119] As a fifth aspect of this application, referring to Figure 17 As shown, this application also provides a vehicle 1, and this vehicle 1 includes the magnetic conductor, the magnetic conduction assembly 100, the actuator 10 or the suspension assembly as above. This vehicle 1 has all the beneficial effects of the magnetic conductor, the magnetic conduction assembly 100, the actuator 10 and the suspension assembly, which will not be elaborated here.

[0120] This vehicle 1 can be a fuel vehicle, a plug-in hybrid vehicle or a new energy vehicle, etc., and the present disclosure does not make specific limitations on this.

[0121] In the description of this application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality" means two or more, unless otherwise specifically defined.

[0122] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0123] The embodiments, implementation manners and related technical features of the present application can be combined and replaced with each other without conflict.

[0124] The above are only the preferred embodiments of the present application, and do not impose any formal restrictions on the present application. However, any simple modifications, equivalent changes and decorations made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A magnetic conductive component, used to form an actuator, characterized in that: The magnetic conductive component comprises: A magnetic conductor, used to constitute a stator assembly or a mover assembly of the actuator; The magnetic conductor comprises: A plurality of magnetic pole portions, for providing magnetic poles of the magnetic conductor; The plurality of magnetic pole portions are spaced apart and arranged at different positions in the circumferential direction of the actuating axis so that a spacing space is formed between the plurality of magnetic pole portions.

2. The magnetic conductive component according to claim 1, characterized in that: in, The magnetic pole portion is extended at least along the radial direction of the actuating axis.

3. The magnetic conductive component according to claim 1, characterized in that: in, The two magnetic pole portions are symmetrically arranged on both sides of the actuating axis.

4. The magnetic conductive component according to claim 1, characterized in that: in, The plurality of magnetic pole portions are symmetrically arranged around the actuation axis.

5. The magnetic conductive component according to claim 1, characterized in that: in, The two magnetic pole portions adjacent to each other in the circumferential direction of the actuation axis are used to provide different magnetic poles.

6. The magnetic conductive component according to claim 1, characterized in that: in, The magnetic pole portion has at least one radial end surface intersecting with the radial direction of the actuating axis.

7. The magnetic conductive component according to claim 6, characterized in that: in, The radial end surface is configured as an arc-shaped curved surface.

8. The magnetic conductive component according to claim 7, characterized in that: in, The radial end surface is constructed as an arc surface with the actuating axis as the central axis.

9. The magnetic conductive component according to claim 8, characterized in that: in, The sum of the arcs of the radial end surfaces of the plurality of magnetic pole portions is less than or equal to 270 degrees.

10. The magnetic conductive component according to claim 1, characterized in that: in, The sum of arcs occupied by the plurality of magnetic pole portions in the circumferential direction of the actuation axis is less than or equal to 270 degrees.

11. The magnetic conductive component according to any one of claims 1 to 10, characterized in that: The magnetic conductor comprises: The magnetic conductor has a plurality of magnetic pole portions.

12. The magnetic conductive component according to claim 11, characterized in that: in, The magnetic conductor also includes: The connecting portion is used to connect the plurality of magnetic pole portions.

13. The magnetic conductive component according to claim 12, characterized in that: in, The connecting portion at least extends along the circumferential direction of the actuating axis.

14. The magnetic conductive component according to any one of claims 1 to 10, characterized in that: in, The magnetic conductor comprises: There are a plurality of magnetic conductors, each of which has one magnetic pole portion.

15. The magnetic conductive component according to claim 14, characterized in that: The magnetic conductor also includes: The permanent magnet is arranged in the interval space.

16. The magnetic conductive component according to any one of claims 1 to 10, characterized in that: The magnetic conductive component includes two magnetic conductive devices at different positions.

17. The magnetic conductive component according to claim 16, characterized in that: in, In the circumferential direction of the actuation axis, the magnetic pole portion of one of the magnetic conductors is arranged corresponding to the magnetic pole portion of the other magnetic conductor.

18. The magnetic conductive component according to claim 16, characterized in that: in, In the radial direction of the actuating axis, the magnetic pole portion of one of the magnetic conductors is correspondingly arranged on the inner side of the magnetic pole portion of the other magnetic conductor.

19. The magnetic conductive component according to claim 16, characterized in that: in, In the axial direction of the actuating axis, the magnetic pole portion of one of the magnetic conductors at least partially overlaps with the magnetic pole portion of the other magnetic conductor.

20. An actuator, characterized in that: The actuator comprises: a magnetic conductive component as described in any one of claims 1 to 19.

21. The actuator according to claim 20, characterized in that The actuator comprises: A stator assembly, comprising at least one of the magnetic conductors; The movable subassembly comprises at least another magnetic conductor.

22. The actuator according to claim 21, characterized in that in, The magnetic conductor of the stator assembly is defined as a fixed magnetic conductor, and the magnetic conductor of the movable assembly is defined as a movable magnetic conductor; Wherein, the stator assembly includes two fixed magnetic conductors, and the two fixed magnetic conductors are arranged at different positions in the axial direction of the actuating axis.

23. The actuator according to claim 22, characterized in that in, The dynamic magnetic conductor is at least partially disposed between the two fixed magnetic conductors, so that the magnetic flux between the two fixed magnetic conductors at least partially passes through the dynamic magnetic conductor.

24. The actuator according to claim 23, characterized in that in, The magnetic conductor of the fixed magnetic conductor is defined as a fixed magnetic conductor; the magnetic pole portion of the fixed magnetic conductor is defined as a fixed magnetic pole portion; and the fixed magnetic conductor has a plurality of the fixed magnetic pole portions.

25. The actuator according to claim 24, characterized in that The actuator also includes: An excitation coil for generating an electromagnetic field; Wherein, the excitation coil is mounted on the fixed magnetic conductor.

26. The actuator according to claim 25, characterized in that in, The excitation coil is sleeved on the fixed magnetic pole portion.

27. The actuator according to claim 26, characterized in that The actuator also includes: A coil support, used for fixing the excitation coil; Wherein, the coil support is fixedly connected to the fixed magnetic pole portion.

28. The actuator according to claim 24, It is characterized in that Wherein, the fixed and conductive magnets include: An insulating layer, made of at least insulating material; A plurality of fixed magnetic guide sheets are stacked in the axial direction of the actuating axis; Wherein, the insulating layer is disposed at least between two of the fixed magnetic conductive sheets to insulate two adjacent fixed magnetic conductive sheets.

29. The actuator according to any one of claims 22 to 28, characterized in that in, The magnetic conductor of the dynamic magnetic conductor is defined as a dynamic magnetic conductor; the magnetic pole portion of the dynamic magnetic conductor is defined as a dynamic magnetic pole portion; and the dynamic magnetic conductor has a plurality of the dynamic magnetic conductors.

30. The actuator according to claim 29, characterized in that in, The mover assembly also includes: The movable support is used for installing a plurality of the movable magnets.

31. The actuator according to claim 30, characterized in that in, The mover assembly also includes: An actuating member, used for outputting an actuating force; Wherein, the mover bracket is connected to the moving magnet and the actuating member respectively.

32. The actuator according to claim 31, characterized in that The actuator also includes: A reset assembly is used to reset the mover assembly to a preset position relative to the stator assembly.

33. The actuator according to claim 32, characterized in that in, The stator assembly further comprises: A stator housing, used to provide a space for accommodating the stator magnetic conductor; Wherein, the reset component comprises: The reset spring is connected to the actuating member and the stator housing respectively.

34. The actuator according to claim 33, characterized in that in, The mover bracket, the actuating member and the stator housing are made of non-magnetic conductive materials.

35. The actuator according to claim 31, characterized in that in, The actuating member and the stator assembly form an axial sliding connection along the actuating axis.

36. An actuator according to any one of claims 22 to 28, characterized in that in, The stator assembly is arranged on the outer side of the actuating axis in the radial direction; and the mover assembly is arranged on the inner side of the actuating axis in the radial direction.

37. A suspension assembly, characterized in that: include: The magnetic conductive component according to any one of claims 1 to 19 or the actuator according to any one of claims 20 to 36.

38. A vehicle, characterized in that: include: The magnetic conductive component according to any one of claims 1 to 19, the actuator according to any one of claims 20 to 36 or the suspension assembly according to claim 37.

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