Motor, active suspension, and vehicle

Abstract

A motor, an active suspension, and a vehicle. The motor comprises a primary structure, at least one secondary structure, and at least one magnetic component. The secondary structure is spaced apart from the primary structure, and the secondary structure is configured as a plate-like structure. The magnetic component is connected to the secondary structure, and the magnetic component is located between the primary structure and the secondary structure.

Description

Motors, active suspension, and vehicles

[0001] This application claims priority to Chinese patent application number 202322328762.1, filed on August 28, 2023, entitled “Motor, Active Suspension and Vehicle,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present application relates to the field of vehicle technology, and in particular to a motor, an active suspension, and a vehicle. Background Art

[0003] Existing linear motors generate output power by utilizing the relative motion between a single-sided moving slider and a stator with a single-sided permanent magnet. However, existing linear motors have a complex structure.

[0004] Application Contents

[0005] The Abstract section introduces a series of simplified concepts that will be further described in the Detailed Description section. The Abstract section of this application is not intended to limit the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] According to a first aspect of the present application, a motor is provided, comprising:

[0007] primary structure;

[0008] at least one secondary structure, the secondary structure being spaced apart from the primary structure, the secondary structure being configured as a plate-like structure; and

[0009] At least one magnetic member is connected to the secondary structure and is positioned between the primary structure and the secondary structure.

[0010] Optionally, the primary structure includes at least one fixed surface, the fixed surface is provided with a plurality of first protrusions, and the plurality of first protrusions are arranged at intervals along a first direction; a coil is arranged around the first protrusion, and the secondary structure is arranged opposite to the coil, the winding center line of the coil is perpendicular to the fixed surface, and the first direction is not parallel to the winding center line.

[0011] Optionally, the same secondary structure is provided with a plurality of magnetic components spaced apart along the first direction, and additional grooves are formed between adjacent magnetic components.

[0012] Optionally, a first groove is formed between adjacent first protrusions, and the coil includes two first line segments, the two first line segments are spaced apart along the first direction, one of the two first line segments is located in one first groove, and the other of the two first line segments is located in another first groove, and the length direction of the first line segment is perpendicular to the first direction.

[0013] Optionally, the coil further includes a second line segment connected to the first line segment, and the second line segment is located between two first line segments along the first direction;

[0014] The second line segments are respectively located at two ends of the first protruding portion along the length direction.

[0015] Optionally, the primary structure includes a plurality of fixing surfaces, and the plurality of fixing surfaces are arranged along the circumferential direction. In the circumferential direction, the first protrusions of adjacent fixing surfaces are spaced apart to form gaps.

[0016] Optionally, at least three-phase windings are provided on the same fixed surface, each phase winding includes one coil or each phase winding includes multiple coils connected in series; and / or

[0017] The primary structure includes a plurality of fixing surfaces, and the coils on different fixing surfaces are not electrically connected to each other.

[0018] Optionally, a size of the primary structure along the first direction is greater than or equal to a size of the secondary structure along the first direction.

[0019] Optionally, the primary structure includes a plurality of the fixed surfaces, which are arranged circumferentially; the motor also includes a supporting member, the supporting member includes a main body, the main body includes a plurality of inner surfaces, the inner surfaces are arranged one by one opposite to the fixed surfaces, and the inner surfaces are connected to the secondary structure.

[0020] Optionally, the support member further includes a guide portion connected to the main body, the primary structure further includes a guide hole, the axial direction of the guide hole is parallel to the first direction, and the guide portion is inserted into the guide hole.

[0021] Optionally, the motor further includes a displacement sensor, a notch is provided at a corner of the main body, the notch passes through two adjacent inner surfaces, and the displacement sensor is provided in the notch.

[0022] The present application also provides an active suspension, which includes the above-mentioned motor.

[0023] Optionally, the motor is constructed so that the secondary structure is movable relative to the primary structure along a first direction, and the active suspension also includes an elastic member, which can produce elastic deformation along the first direction, and the elastic member includes a first end and a second end arranged oppositely along the first direction, the first end of the elastic member acts on the secondary structure, and the second end of the elastic member acts on the primary structure.

[0024] Optionally, the motor further comprises a supporting member, the supporting member comprising a main body, the main body comprising an inner surface, the inner surface facing the primary structure and the inner surface being connected to the secondary structure, the first end of the elastic member abuts against the supporting member, so that the first end of the elastic member acts on the secondary structure through the supporting member.

[0025] Optionally, the support member further includes a support plate, the main body further includes an outer surface, the support plate is connected to the outer surface and is arranged around the main body, and the first end of the elastic member is against the support plate.

[0026] Optionally, the active suspension further includes a connecting member, which is fixedly connected to the primary structure, and the second end of the elastic member abuts against the connecting member, so that the second end of the elastic member acts on the primary structure through the connecting member.

[0027] Optionally, the connecting member includes an abutment plate and a fitting portion, the fitting portion protrudes from the abutment plate along the first direction toward the primary structure, and the second end of the elastic member abuts against the abutment plate.

[0028] Optionally, the primary structure further includes a guide hole, the matching portion is inserted into the guide hole along the first direction, and the matching portion is fixedly connected to the guide hole.

[0029] Optionally, the support member further includes a guide portion, the mating portion includes a mating hole, the axial direction of the mating hole is parallel to the axial direction of the guide hole, the guide portion is inserted into the mating hole, and the guide portion is movable relative to the mating hole along the first direction.

[0030] The present application also provides a vehicle, comprising the aforementioned motor, wherein the motor is configured to enable the secondary structure to move relative to the primary structure along a first direction. The vehicle further comprises a body and wheels, wherein the body is connected to the top of the primary structure, and the wheels are connected to the bottom of the secondary structure. The top of the primary structure and the bottom of the secondary structure are respectively located at opposite ends of the motor along a height direction of the vehicle, wherein the height direction is parallel to the first direction. Alternatively, the vehicle comprises the aforementioned active suspension. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The following drawings of this application are hereby incorporated as part of this application for understanding this application. The drawings show the embodiments of this application and their descriptions, and are used to explain the devices and principles of this application. In the drawings,

[0032] FIG1 is a schematic cross-sectional view of an active suspension according to a preferred embodiment of the present application;

[0033] FIG2 is another cross-sectional schematic diagram of an active suspension according to a preferred embodiment of the present application;

[0034] FIG3 is a perspective schematic diagram of the primary structure shown in FIG1 ;

[0035] FIG4 is a perspective schematic diagram of the support member shown in FIG1 ;

[0036] FIG5 is another perspective schematic diagram of the support member shown in FIG1 , wherein the secondary structure is located in the support member;

[0037] FIG6 is a schematic diagram of the arrangement of the coil shown in FIG3 ;

[0038] FIG7 is another schematic diagram of the arrangement of the coils shown in FIG6;

[0039] FIG8 is a partial perspective schematic diagram of the fixing surface of the primary structure shown in FIG3 ;

[0040] FIG9 is a schematic cross-sectional view of the active suspension shown in FIG1 ; and

[0041] FIG10 is a partial schematic diagram of a vehicle according to a preferred embodiment of the present application.

[0042] Explanation of reference numerals: 10: Motor 100: Active suspension 110: Primary structure 111: First groove 112: Coil 113: First protrusion 114: Fixing surface 115: Corner of coil 116: Additional groove 117: Magnetic member 118: Guide hole 119: Wire 120: Three-phase winding 121: Multi-phase winding 122: First side surface 123: Second side surface 124: First line segment 125: Second line segment 126: Gap 127: Cavity 130: Secondary structure 150 : Elastic member 151: First end of elastic member 152: Second end of elastic member 160: Support member 161: Main body 162: Support plate 163: Guide portion 164: Main body hole 165: Corner of main body 166: Displacement sensor 167: Notch 168: Ring portion 169: Inner surface of main body 170: Outer surface of main body 180: Connecting member 181: Abutment plate 182: Matching portion 183: Matching hole 200: Vehicle 210: Vehicle body 220: Wheel DETAILED DESCRIPTION

[0043] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, some technical features well known in the art are not described in order to avoid confusion with the present application.

[0044] To thoroughly understand this application, a detailed structure will be presented in the following description to illustrate this application. Obviously, the implementation of this application is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this application are described in detail below. However, in addition to these detailed descriptions, this application may also have other embodiments and should not be construed as being limited to the embodiments set forth herein.

[0045] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present application. The singular forms "a", "an" and "said / the" are also intended to include the plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof. The terms "upper", "lower", "front", "back", "left", "right" and similar expressions used in this application are for illustrative purposes only and are not limiting.

[0046] Ordinal numbers such as “first” and “second” cited in this application are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term “first component” itself does not imply the existence of a “second component”, and the term “second component” itself does not imply the existence of a “first component”.

[0047] Hereinafter, specific embodiments of the present application will be described in more detail with reference to the accompanying drawings. These drawings illustrate representative embodiments of the present application and do not limit the present application.

[0048] Figures 1 and 2 show an active suspension 100 according to a preferred embodiment of the present invention. Preferably, the active suspension 100 is used in a vehicle to reduce vibration of the vehicle.

[0049] The active suspension 100 includes a motor 10 according to a preferred embodiment of the present application. The motor 10 includes a primary structure 110 and at least one secondary structure 130. The primary structure 110 includes at least one fixed surface 114, which is a side surface of the main body of the primary structure 110. The main body of the primary structure 110 is made of a magnetically conductive structure. The main body of the primary structure 110 is a stator core. The length of the primary structure 110 is parallel to a first direction D1. The length of the secondary structure 130 is parallel to the first direction D1. The secondary structure 130 is made of a magnetically conductive structure. The secondary structure 130 is a stator core. The primary structure 110 and the secondary structure 130 are arranged opposite each other along a second direction D2 perpendicular to the first direction D1. The secondary structure 130 is spaced apart from the primary structure 110. A constant air gap exists between the secondary structure 130 and the primary structure 110.

[0050] As shown in Figure 5, the secondary structure 130 is constructed as a plate-like structure. The length direction of the secondary structure 130 is parallel to the first direction D1. This avoids difficulties in manufacturing the secondary structure 130. The secondary structure 130 can include multiple plate-like mounting surfaces, with adjacent plate-like mounting surfaces connected, for example, vertically. Furthermore, the secondary structure 130 can be constructed as a flat plate structure. For example, the secondary structure 130 can be constructed as a rectangular parallelepiped structure for ease of processing.

[0051] Motor 10 also includes a magnetic member 117 connected to secondary structure 130. Magnetic member 117 is capable of moving with secondary structure 130. Magnetic member 117 is made of magnetic steel and has a square shape. This reduces manufacturing difficulties for magnetic member 117. Magnetic member 117 can be attached to the surface of secondary structure 130 facing primary structure 110 by bonding.

[0052] The magnetic member 117 is positioned between the primary structure 110 and the secondary structure 130. The magnetic member 117 is positioned between the primary structure 110 and the secondary structure 130 along a second direction D2 perpendicular to the first direction D1. The magnetic member 117 is configured as a flat plate. This reduces the machining and installation precision of the magnetic member 117. Consequently, the motor 10 has a simple and reliable structure and is easy to manufacture.

[0053] The primary structure 110 also includes a coil 112, which is attached to a fixed surface 114 of the primary structure 110. A secondary structure 130 is disposed opposite the coil 112. The coil 112 is preferably a disc-shaped coil. A power source supplies power to the coil 112. The power source can be a battery, an external AC power source, a generator, or any other power supply. When energized, the coil 112 generates a magnetic field. The magnetic lines of force of the magnetic field pass through the fixed surface 114 of the primary structure 110 and through the secondary structure 130, enabling relative movement of the secondary structure 130 and the primary structure 110 in a first direction D1. In particular, when the primary structure 110 is fixed, the magnetic field can fully act on the secondary structure 130, enabling movement of the secondary structure 130 in the first direction D1. Alternatively, the secondary structure 130 can be fixed, and the magnetic field of the coil 112 can act on the main body of the primary structure 110, enabling movement of the primary structure 110 in the first direction D1.

[0054] As an optional embodiment, the dimension of the primary structure 110 along the first direction D1 is greater than the dimension of the secondary structure 130 along the first direction D1. This saves material for the secondary structure 130 and reduces costs. As another optional embodiment, the length of the primary structure 110 along the first direction D1 is equal to the length of the secondary structure 130 along the first direction D1. This fully utilizes the primary structure 110 and the secondary structure 130, allowing the coil 112 on the primary structure 110 to fully generate a magnetic field, which can fully act on the secondary structure 130, resulting in a larger displacement of the secondary structure 130 along the first direction D1.

[0055] To ensure that the magnetic field generated by coil 112 can drive the secondary structure 130 with maximum efficiency, the main body of primary structure 110 is constructed as a polyhedron, such as a polygonal prism. This structure is simple and reliable, and reduces manufacturing complexity. Specifically, as shown in Figure 3, primary structure 110 includes at least one fixed surface 114, and preferably, multiple fixed surfaces 114, each of which is a planar structure. Multiple fixed surfaces 114 are arranged circumferentially, that is, multiple fixed surfaces 114 are connected in sequence to form the side surfaces of the polygonal prism.

[0056] The main body of the primary structure 110 is constructed as a single piece. For example, the main body of the primary structure 110 is constructed as a quadrangular prism, such as a rectangular parallelepiped structure, which has a simple and reliable structure and reduces the difficulty of processing. The cross-sectional shape of the main body of the primary structure 110 is a quadrilateral, such as a rectangle. Preferably, the cross-sectional shape of the main body of the primary structure 110 is a square. In this embodiment, the "cross-section" is perpendicular to the first direction D1. The primary structure 110 includes, for example, four fixing surfaces 114. The four fixing surfaces 114 are connected in sequence. The angles between adjacent fixing surfaces 114 are right angles. Of course, the main body of the primary structure 110 can also be constructed as a triangular prism structure, a pentagonal prism structure, a hexagonal prism structure or a prism structure with more faces, and this embodiment does not intend to limit this. In this way, the difficulty in manufacturing the primary structure 110 is avoided.

[0057] The fixing surface 114 is provided with a plurality of first protrusions 113, which are spaced apart along the first direction D1. The first protrusions 113 protrude from the fixing surface 114. The first protrusions 113 protrude from the fixing surface 114 toward the secondary structure 130. The coil 112 is disposed around the first protrusions 113.

[0058] First grooves 111 are formed between adjacent first protrusions 113. The openings of the first grooves 111 face toward the secondary structure 130. To increase the strength of the magnetic field generated by the primary structure 110 equipped with the coil 112, the fixing surface 114 is provided with a plurality of first protrusions 113 to form a plurality of first grooves 111. The plurality of first grooves 111 are spaced apart along the first direction D1.

[0059] The plurality of first protrusions 113 are respectively surrounded by a coil 112. The coil 112 is at least partially located in the first groove 111. When the coil 112 is energized, a magnetic field is generated and the primary structure 110 is magnetic. When the coil 112 is energized, a strong magnetic field is generated, thereby driving the secondary structure 130 to move. The magnetic member 117 can generate an interaction force with the coil 112, thereby driving the secondary structure 130 to move along the first direction D1. The length direction of the magnetic member 117 is perpendicular to the first direction D1. As a result, the magnetic member 117 can generate sufficient magnetic force along the first direction D1.

[0060] To fully utilize the magnetic field of coil 112, the secondary structure 130 has a rectangular longitudinal cross-section. In this embodiment, the longitudinal cross-section is parallel to the first direction D1. The magnetic field generated by coil 112 interacts with the multiple magnetic members 117, driving the secondary structure 130 to move along the first direction D1.

[0061] The centerline of the coil 112 is perpendicular to the fixed surface 114. The first direction D1 is non-parallel to the centerline, for example, perpendicular to it. The coil 112 forms a racetrack coil structure. Thus, the coil 112 forms a closed structure, and the magnetic field generated by the coil 112 can drive the secondary structure 130 to move along the first direction D1.

[0062] A portion of the coil 112 is disposed in the first groove 111, and another portion of the coil 112 protrudes from the first groove 111, that is, is located outside the first groove 111. Multiple first grooves 111 are each provided with a coil 112, and the coils 112 in the multiple first grooves 111 can all generate a force on the secondary structure 130. The coil 112 in each first groove 111 can form an independent electronic unit, thereby enabling the winding formed by the coils 112 in the multiple first grooves 111 to form multiple independent electronic units corresponding to the secondary structure 130. As shown in FIG3 , the coil 112 includes a first wire segment 124 disposed in the first groove 111. The forces generated by the first wire segments 124 of the multiple coils 112 can all act together on the secondary structure 130, allowing the secondary structure 130 to move.

[0063] As shown in Figures 6 and 7, the corners 115 of the coils 112 in the multiple first grooves 111 each have an input end and an output end. The input end of one coil 112 and the output end of another coil 112 are connected by a wire 119, so that the two coils 112 are connected in series. Furthermore, the coils 112 in the multiple first grooves 111 on the same fixed surface 114 are connected in series. The coils 112 in the multiple first grooves 111 on the same fixed surface 114 are connected in series to form a winding. The coils 112 significantly reduce the winding ends and improve the utilization rate of the winding. At least three-phase windings are formed on the same fixed surface 114, each phase winding includes one coil 112, or each phase winding includes multiple coils 112 connected in series. For example, a three-phase winding 120 or a multi-phase winding 121.

[0064] In this way, the three-phase winding 120 or multi-phase winding 121 independently formed on each fixed surface 114 can form a plurality of switched flux linear motor units together with the corresponding secondary structure 130. This can make the force output mode of the active suspension 100 more diverse and improve the fault tolerance of the system.

[0065] Furthermore, in order to correspond to the primary structure 110, the motor 10 includes a plurality of secondary structures 130, and the secondary structures 130 are arranged one by one opposite to the fixed surface 114. One secondary structure 130 corresponds to one fixed surface 114. The plurality of secondary structures 130 are spaced apart from each other. The angle formed between adjacent secondary structures 130 is equal to the angle formed between adjacent fixed surfaces 114. The three-phase winding 120 or multi-phase winding 121 independently constructed on each fixed surface 114 can together form a plurality of switched flux linear motor units. In this way, the force output mode of the motor 10 can be made more diverse, thereby increasing the fault tolerance of the system.

[0066] In the illustrated embodiment, the multiple fixing surfaces 114 of the primary structure 110 form a cylindrical shape, giving the primary structure 110 a cylindrical shape. The axial direction of the primary structure 110 is a first direction D1. The radial direction of the primary structure 110 is a second direction D2. The secondary structure is spaced apart from the primary structure 110 in the radial direction of the primary structure 110. The circumferential direction of the primary structure 110 is a third direction D3.

[0067] To ensure the stability of the magnetic field generated by the primary structure 110, the coils 112 on different fixed surfaces 114 are not electrically connected to each other. The coils 112 on the first fixed surface 114 generate a first magnetic field, the coils 112 on the second fixed surface 114 generate a second magnetic field, and the coils 112 on the Nth fixed surface 114 generate an Nth magnetic field. N is an integer greater than 2. If the coils 112 on one fixed surface 114 are damaged and unable to generate a magnetic field, the coils 112 on the other fixed surfaces 114 can still generate a magnetic field. This improves the reliability of the primary structure 110.

[0068] As an optional embodiment, the magnetic members 117 provided on each secondary structure 130 are of the same size. In particular, the magnetic members 117 provided on each secondary structure 130 are of the same length. Thus, the magnetic members 117 provided on multiple secondary structures 130 can all generate forces in the same direction with the primary structure 110, thus preventing the multiple forces from canceling out.

[0069] In order to further increase the magnitude of the magnetic field force, the motor 10 includes a plurality of magnetic components 117, and the plurality of magnetic components 117 are spaced apart along the first direction D1. A plurality of magnetic components 117 can be provided on the same secondary structure 130. A plurality of magnetic components 117 can be connected to the same surface of the same secondary structure 130 facing the primary structure 110. In this way, the plurality of magnetic components 117 can all generate a force with the coil 112, and then act together on the secondary structure 130, thereby driving the secondary structure 130 to move along the first direction D1. Preferably, the plurality of magnetic components 117 can be distributed in a Halbach array so as to generate a stronger magnetic field using a small number of magnetic components 117. Of course, the plurality of magnetic components 117 can also be distributed in a non-Halbach array.

[0070] Additional slots 116 are formed between adjacent magnetic members 117. The magnetic members 117 and the additional slots 116 together form an uneven structure. The magnetic field generated by energizing the coil 112 acts on the uneven structure of the secondary structure 130, causing the magnetic field generated by the coil 112 to drive the secondary structure 130 to move by acting on the magnetic members 117.

[0071] Preferably, the coil 112 is at least partially disposed opposite to the additional slot 116. This ensures that the magnetic field generated by the coil 112 after being energized acts on the magnetic member 117, thereby driving the secondary structure 130 to move along the first direction D1.

[0072] As shown in Figure 8, to fully utilize the magnetic field of coil 112, the longitudinal cross-section of first protrusion 113 is rectangular. In this embodiment, the "longitudinal cross-section" is parallel to the first direction D1. First protrusion 113 includes two first side surfaces 122 and two second side surfaces 123, with the first side surfaces 122 and the second side surfaces 123 perpendicularly connected. The two first side surfaces 122 are arranged opposite each other along the first direction D1. The two second side surfaces 123 are arranged opposite each other along a third direction D3 perpendicular to the first direction D1. The third direction D3 is also perpendicular to the second direction D2. The first side surface 122 is perpendicular to the first direction D1. The second side surface 123 is parallel to the first direction D1. The length of the first side surface 122 is greater than the length of the second side surface 123. Coil 112 is arranged around the first side surfaces 122 and the second side surfaces 123. This ensures that the coil 112 exerts a strong force on the magnetic member 117 along the first direction D1, thereby driving the secondary structure 130 to move along the first direction D1.

[0073] Furthermore, as shown in FIG3 , the coil 112 is wound around the first protrusion 113 into a square-shaped configuration. The coil 112 includes two first segments 124 spaced apart along a first direction D1. The lengths of the first segments 124 are perpendicular to the first direction D1. The two first segments 124 of the same coil 112 are spaced apart along the first direction D1, and a first protrusion 113 is provided between the two first segments 124 along the first direction D1. Thus, the two first segments 124 of the same coil 112 can be positioned in two adjacent first grooves 111, respectively. One first segment 124 of the same coil 112 is positioned in one first groove 111, while the other first segment 124 of the same coil 112 is positioned in the other first groove 111. This ensures that the two first segments 124 can generate sufficient magnetic field force along the first direction D1, thereby driving the secondary structure 130 to move along the first direction D1.

[0074] Coil 112 also includes two second line segments 125. The first line segment 124 and the second line segment 125 are substantially perpendicularly connected. The two second line segments 125 are arranged relative to each other along a third direction D3 perpendicular to the first direction D1. The second line segment 125 is located between the two first line segments 124 along the first direction D1. The second line segment 125 is parallel to the first direction D1. Thus, the force exerted by the first line segment 124 on the secondary structure 130 is parallel to the first direction D1. The second line segment 125 provides a path for electrical current to flow.

[0075] The length of first line segment 124 is greater than the length of second line segment 125. First line segment 124 is disposed outside first side surface 122. First line segment 124 is aligned with first side surface 122. Second line segment 125 is disposed outside second side surface 123. Second line segment 125 is aligned with second side surface 123. This ensures that coil 112 exerts a greater force on magnetic member 117 along first direction D1, thereby driving secondary structure 130 to move along first direction D1.

[0076] The two second segments 125 of the same coil 112 are spaced apart along a third direction D3 perpendicular to the first direction D1, and the aforementioned first protrusion 113 is provided between the two second segments 125 along the lengthwise direction of the first segment 124. The second segments 125 are located at both ends of the first protrusion 113 along the lengthwise direction of the first segment 124. The first groove 111 and the first protrusion 113 are flush along the lengthwise direction of the first segment 124. To ensure that the coil 112 can be arranged around the first protrusion 113, the second segment 125 protrudes from the first groove 111 along the lengthwise direction of the first segment 124, i.e., is located outside the first groove 111. In other words, the coil 112 is wound around the first protrusion 113. The second segment 125 is located outside the second side surface 123 along the lengthwise direction of the first segment 124. The second segment 125 does not affect the movement of the secondary structure 130 along the first direction D1.

[0077] Another first protrusion 113 is provided between two adjacent coils 112. In particular, the other first protrusion 113 is located between a first line segment 124 of one coil 112 and a first line segment 124 of another coil 112. That is, one first protrusion 113 is located between two adjacent first line segments 124 of two adjacent coils 112. The second line segments 125 of the two adjacent coils 112 are spaced apart along the first direction D1. The two adjacent coils 112 do not directly contact each other. In this way, the power supply to the two adjacent coils 112 does not affect each other (for example, it is not easy to short-circuit).

[0078] As shown in Figure 9, to prevent the coils 112 on adjacent fixed surfaces 114 from directly contacting each other and causing a short circuit, the first protrusions 113 of circumferentially adjacent fixed surfaces 114 are spaced apart. A gap 126 is formed between the first protrusions 113 of circumferentially adjacent fixed surfaces 114. This gap 126 serves as a heat dissipation channel for the coils 112, ensuring that the coils 112 on circumferentially adjacent fixed surfaces 114 are spaced apart, and also preventing temperature and electromagnetic interference during operation. Preferably, the gap 126 is also located between the first protrusion 113 of one fixed surface 114 and the coil 112 on another adjacent fixed surface 114. This ensures that the first protrusion 113 of one fixed surface 114 and the coil 112 on another fixed surface 114 are spaced apart, preventing mutual interference. The gap 126 can extend along the first direction D1 to form a cavity 127. Cavity 127 is, for example, configured as a rectangular parallelepiped. Thus, the multiple coils 112 of the first fixing surface 114 and the multiple first protrusions 113 of the second fixing surface 114 are ensured to be spaced apart, thereby avoiding interference between the multiple coils 112 and the multiple first protrusions 113 of adjacent fixing surfaces 114 .

[0079] As shown in Figures 4 and 5 , to secure the multiple secondary structures 130, the motor 10 further includes a support member 160, which is constructed as a hollow polyhedron. The support member 160 ensures that the secondary structures 130 are aligned with the coils 112. The primary structure 110 and the secondary structures 130 are positioned within the support member 160, so that when the coils 112 within the support member 160 are energized, a force is applied to the secondary structures 130, driving them to move. Furthermore, the secondary structures 130 are connected to the support member 160. Movement of the secondary structures 130 in the first direction D1 drives movement of the support member 160 in the first direction D1.

[0080] Specifically, the support member 160 includes a main body 161, which is configured as a sleeve. The main body 161 is used to accommodate the primary structure 110 and the secondary structure 130. The main body 161 includes a main body hole 164, the length of which is parallel to the first direction D1. The primary structure 110 and the secondary structure 130 are disposed in the main body hole 164. The shape of the main body hole 164 matches that of the primary structure 110. For example, the cross-sectional shape of the main body hole 164 is a quadrilateral.

[0081] The main body 161 can be constructed as a polyhedral sleeve structure. The main body 161 includes a plurality of inner surfaces 169 , which are sequentially connected to collectively enclose the main body hole 164 . In other words, the inner surface 169 is the inner wall surface of the main body hole 164 .

[0082] The main body 161 is constructed as a single piece, which is simple and reliable, and reduces the difficulty of processing. Among them, multiple inner surfaces 169 are respectively opposite to the multiple fixed surfaces 114. In the embodiment shown in Figure 4, the main body 161 is constructed as a rectangular sleeve structure, and the cross-sectional shape of the main body 161 is a rounded rectangle. Preferably, the cross-sectional shape of the main body 161 is a rounded square. The main body 161 includes four inner surfaces 169. The four inner surfaces 169 are connected in sequence. The angles between adjacent inner surfaces 169 are right angles. The four inner surfaces 169 are respectively opposite to the four fixed surfaces 114. Of course, the main body 161 can be constructed as other prism structures to match the shape of the primary structure 110. For example, the main body 161 can also be constructed as a triangular prism structure, a pentagonal prism structure, a hexagonal prism structure, or a prism structure with more faces according to the shape of the primary structure 110. This embodiment is not intended to be limiting in this regard.

[0083] The main body 161 is connected to the secondary structure 130. The main body 161 and the secondary structure 130 are fixedly connected. The main body 161 and the secondary structure 130 are fixedly connected together by bonding or welding. Thus, movement of the secondary structure 130 drives movement of the main body 161 in the first direction D1. As shown in Figures 1, 2, and 4, the inner surface 169 faces the primary structure 110. As shown in Figures 1, 2, and 5, the inner surface 169 is connected to the secondary structure 130. Furthermore, each inner surface 169 is connected to a secondary structure 130. This allows each fixed surface 114 of the primary structure 110 to face a secondary structure 130. When energized, the coil 112 on each fixed surface 114 can act on the corresponding secondary structure 130, causing it to move. Multiple secondary structures 130 can move at least partially simultaneously, collectively driving movement of the support member 160.

[0084] To monitor the displacement of the secondary structure 130 in real time, the main body 161 is also equipped with a displacement sensor 166. Displacement sensor 166 is located at a corner 165 of the main body 161. Displacement sensor 166 is located at an edge of the main body 161. A notch 167 is provided at the corner 165 of the main body 161. Notch 167 is recessed inward from the outer surface of the main body 161 and extends through two adjacent inner surfaces 169. Displacement sensor 166 is located within notch 167. This prevents thermal and electromagnetic interference caused by coil 112 being energized and improves space utilization within the support structure 160.

[0085] The support member 160 also includes a guide portion 163 connected to the main body 161. The guide portion 163 is configured as a rod-shaped structure. The guide portion 163 is disposed in the main body hole 164. The guide portion 163 can be connected to the bottom of the interior of the main body 161 along the first direction D1. The guide portion 163 and the main body 161 can be connected together by welding or integral molding. Movement of the main body 161 can also drive movement of the guide portion 163.

[0086] As shown in Figure 3, the primary structure 110 includes a guide hole 118, the axial direction of which is parallel to the first direction D1. A guide portion 163 is inserted into the primary structure 110. Specifically, the guide portion 163 is inserted into the guide hole 118. The guide portion 163 is movable relative to the primary structure 110 in the first direction D1. The primary structure 110 constrains the guide portion 163, thereby achieving radial positioning. Furthermore, the guide portion 163 guides and limits the movement of the secondary structure 130, ensuring linear movement of the secondary structure 130 in the first direction D1. This prevents contact between the primary and secondary structures 110, 130, caused by radially unbalanced magnetic pull when the primary and secondary structures 110, 130, are eccentric, thus ensuring a constant air gap between the primary and secondary structures 110, 130 during operation.

[0087] FIG9 shows a vehicle 200 according to a specific embodiment of the present application, in which an active suspension 100 is used for the vehicle 200 to reduce vibrations of the vehicle 200. In other words, the vehicle 200 includes the active suspension 100. The vehicle 200 includes the above-mentioned motor 10. The vehicle 200 also includes wheels 220 and a body 210, the wheels 220 running on the road, and the active suspension 100 connecting the wheels 220 and the body 210. The active suspension 100 can reduce vibrations transmitted from the wheels 220 to the body 210. The stiffness and damping characteristics of the active suspension 100 can be dynamically and adaptively adjusted according to the driving conditions of the vehicle 200 (the motion state of the vehicle 200 and the road conditions, etc.), so that the active suspension 100 is in an optimal vibration reduction state.

[0088] The primary structure 110 of the motor 10 is connected to the vehicle body 210, and the secondary structure 130 is connected to the wheel 220. Specifically, one end of the primary structure 110 is connected (indirectly) to the vehicle body 210, and one end of the secondary structure 130 is connected (indirectly) to the wheel 220. The active suspension 100 also includes an elastic member 150, whose ends act on the primary structure 110 and the secondary structure 130, respectively, and thus act on the vehicle body 210 and the wheel 220.

[0089] For example, the elastic member 150 is configured as a hard, rigid spring. The elastic member 150 acts on the primary structure 110 and the secondary structure 130 at both ends along a first direction D1, respectively. In this embodiment, the "first direction D1" is parallel to the height direction of the vehicle 200. The elastic member 150 is capable of elastic deformation along the first direction D1. Specifically, the elastic member 150 includes a first end 151 and a second end 152, which are located at both ends of the elastic member 150 along the first direction D1. The first end 151 of the elastic member 150 abuts against the secondary structure 130, and the second end 152 of the elastic member 150 abuts against the primary structure 110. In this embodiment, "abutment" (or abutment) can be direct contact or indirect contact.

[0090] Furthermore, the primary structure 110 is connected to the vehicle body 210, and the secondary structure 130 is connected to the wheel 220. The elastic member 150 absorbs the impact force caused by driving on bumpy roads, thereby providing a shock-absorbing effect. A first end 151 of the elastic member 150, which extends along the height of the vehicle 200, abuts against the wheel 220 via the secondary structure 130. A second end 152 of the elastic member 150, which extends along the height of the vehicle 200, abuts against the vehicle body 210 via the primary structure 110. The second end 152 of the elastic member 150 supports the vehicle body 210. The elastic member 150 connects the vehicle body 210 to the secondary structure 130, and the weight of the vehicle body 210 acts on the elastic member 150, supporting the vehicle body 210. The elastic member 150 transmits the weight of the vehicle body 210 to the wheel 220 via the secondary structure 130.

[0091] The first end 151 of the elastic member 150 can abut against the support member 160, so that the first end 151 of the elastic member 150 acts on the secondary structure 130 through the support member 160. The elastic member 150 abuts against the secondary structure 130 through the support member 160 to prevent the secondary structure 130 from being directly connected to the elastic member 150 and causing the structure of the secondary structure 130 to be damaged.

[0092] The secondary structure 130 is further connected to the wheel 220 via a support member 160. The support member 160 includes a ring portion 168 located at the bottom of the support member 160. The ring portion 168 is used to connect to the axle of the wheel 220.

[0093] The support member 160 also includes a support plate 162, which protrudes from the main body 161. The main body 161 also includes an outer surface 170. The support plate 162 is connected to the outer surface 170 of the main body 161. In this embodiment, the "outer surface 170 of the main body 161" refers to the surface of the main body 161 facing away from the secondary structure 130. The support plate 162 is constructed as a flat plate structure with a simple structure and easy processing. The support plate 162 is arranged around the main body 161. The support plate 162 is spaced apart from the end face of the main body 161 along the first direction D1. The end of the main body 161 is inserted into the inner coil of the spring of the elastic member 150. The support plate 162 is against the first end 151 of the elastic member 150. The elastic force of the elastic member 150 acts on the support plate 162 so that the support member 160 is evenly stressed.

[0094] The active suspension 100 also includes a connecting member 180, which is fixedly connected to the primary structure 110. The connecting member 180 and the primary structure 110 can be connected together by welding or threading. The primary structure 110 is connected to the vehicle body 210 via the connecting member 180. The second end 152 of the elastic member 150 abuts against the connecting member 180, so that the second end 152 of the elastic member 150 acts on the primary structure 110 through the connecting member 180. In this way, the elastic member 150 abuts against the connecting member 180, preventing the primary structure 110 and the vehicle body 210 from being directly connected to the elastic member 150, thereby preventing the primary structure 110 from being damaged and affecting the generation of the magnetic field.

[0095] Specifically, connecting member 180 includes an abutment plate 181, which abuts against second end 152 of elastic member 150. Elastic member 150 is positioned between abutment plate 181 and support plate 162. The elastic force of elastic member 150 acts on abutment plate 181. Abutment plate 181 is a flat plate structure, which is simple and easy to manufacture. The elastic force of elastic member 150 acts on abutment plate 181, ensuring uniform force on connecting member 180 and, consequently, on vehicle body 210.

[0096] The connecting member 180 also includes a mating portion 182 that protrudes from the abutment plate 181 along the first direction D1. The mating portion 182 can be configured as a rod-shaped structure. The axial direction of the mating portion 182 is parallel to the first direction D1. The mating portion 182 protrudes along the first direction D1 toward the primary structure 110. A portion of the mating portion 182 is inserted into the inner coil of the spring of the elastic member 150 and passes through the elastic member 150. The mating portion 182 is inserted into the support member 160 along the first direction D1. The mating portion 182 is connected to the primary structure 110, thereby connecting the primary structure 110 to the connecting member 180. One end of the mating portion 182 along the first direction D1 is used to connect to the vehicle body 210, and the other end of the mating portion 182 along the first direction D1 is connected to the primary structure 110. The primary structure 110 and the mating portion 182 can be connected together by bonding or welding. The primary structure 110 and the connecting member 180 are fixed together, thereby fixing the primary structure 110 to the vehicle body 210 .

[0097] More specifically, the mating portion 182 is inserted into the guide hole 118 of the primary structure 110 along the first direction D1, and the mating portion 182 is fixedly connected to the primary structure 110. The mating portion 182 and the primary structure 110 can be fixed together by welding, bonding, or threading. The guide hole 118 can be configured as a circular hole. The mating portion 182 is configured as a cylindrical structure. It can be understood that the shapes of the mating portion 182 and the guide hole 118 match, and the mating portion 182 and the guide hole 118 are fixed together. Of course, the guide hole 118 can also be configured as a polygonal hole, the mating portion 182 is configured as a polyhedron structure, and the shapes of the mating portion 182 and the guide hole 118 match. This embodiment is not intended to be limiting in this regard.

[0098] The mating portion 182 includes a mating hole 183 (see FIG2 ). The axial direction of the mating hole 183 is parallel to the axial direction of the guide hole 118. The mating hole 183 and the guide hole 118 are coaxially arranged. The longitudinal direction of the mating hole 183 is parallel to the first direction D1. The guide portion 163 of the support member 160 is inserted into the mating hole 183. The mating hole 183 is configured as a circular hole, and the guide portion 163 is configured as a cylindrical structure. The guide portion 163 is inserted into the mating hole 183, thereby inserting the guide portion 163 into the primary structure 110. The guide portion 163 can move relative to the mating hole 183 along with the support member 160 in the first direction D1. As a result, the mating hole 183 constrains the guide portion 163, achieving radial positioning and providing guidance and limiting functions. This ensures that the secondary structure 130 can move linearly along the first direction D1. This prevents the primary structure 110 and the secondary structure 130 from contacting each other due to radially unbalanced magnetic pull when eccentric, thereby ensuring a constant air gap between the primary structure 110 and the secondary structure 130 during operation of the active suspension 100. Of course, the mating hole 183 can also be configured as a polygonal hole, and the guide portion 163 as a polyhedron, with the shapes of the guide portion 163 and the mating hole 183 matching each other. This embodiment is not intended to be limiting.

[0099] When the vehicle 200 is traveling on a bumpy road, the control device controls the current direction of the motor 10 according to the data monitored by the road condition sensor. When the coil 112 is not energized, the vehicle 200 can also directly reduce vibration through the elastic member 150.

[0100] For example, as shown in FIG1 , the guide portion 163 can be tightly fitted with the top surface of the mating hole 183. When the vehicle 200 travels on a road surface with a pothole, the control device controls the current direction of the motor 10 to be forward, and the magnetic field generated by the coil 112 acts on the magnetic member 117 to drive the secondary structure 130 to move in the first direction D1 away from the abutment plate 181. The secondary structure 130 can drive the guide portion 163 to move away from the abutment plate 181, thereby separating the guide portion 163 from the top surface of the mating hole 183. In this way, the secondary structure 130 can drive the support member 160 to move downward in the height direction of the vehicle 200, causing the first end 151 of the elastic member 150 to move downward in the first direction D1 to extend the elastic member 150, thereby driving the wheel 220 to move downward to fit the pothole surface, thereby reducing vibration of the vehicle body 210.

[0101] As shown in Figure 2, the guide portion 163 can also be spaced apart from the top surface of the mating hole 183. When the vehicle 200 travels on a road surface with a protrusion, the control device controls the direction of the current in the motor 10 to be reversed. The magnetic field generated by the coil 112 acts on the magnetic member 117, driving the secondary structure 130 to move in the first direction D1 toward the abutment plate 181. The secondary structure 130 can drive the guide portion 163 toward the abutment plate 181, thereby causing the guide portion 163 to mate with the top surface of the mating hole 183. In this way, the secondary structure 130 can drive the support member 160 to move upward in the height direction of the vehicle 200, causing the first end 151 of the elastic member 150 to move upward in the first direction D1, compressing the elastic member 150, thereby driving the wheel 220 to move upward to mate with the road surface with the protrusion, thereby reducing vibration of the vehicle body 210.

[0102] Vehicle 200 also includes multiple road condition sensors and a control device. The multiple road condition sensors are mounted on vehicle body 210 and are used to monitor road conditions in real time. The multiple road condition sensors are electrically connected to the control device to provide feedback to the control device. The control device is electrically connected to a power source to control the direction of current flow based on the data provided by the road condition sensors. This allows the control device of vehicle 200 to promptly control the direction of movement of the secondary structure 130. The control device can also control the magnitude of the current flow based on the data provided by the road condition sensors. This allows the control device of vehicle 200 to promptly control the displacement of the secondary structure 130.

[0103] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art in the technical field of this application. The terms used herein are only for describing specific implementation purposes and are not intended to limit this application. Terms such as "part" and "component" appearing in this article may refer to either a single part or a combination of multiple parts. Terms such as "installation" and "setting" appearing in this article may refer to either a component being directly attached to another component or a component being attached to another component through an intermediate component. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0104] This application has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are for the purpose of illustration and description only and are not intended to limit this application to the scope of the described embodiments. In addition, it will be understood by those skilled in the art that this application is not limited to the above-mentioned embodiments and that more variations and modifications can be made based on the teachings of this application, and these variations and modifications all fall within the scope of protection claimed in this application. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A motor (10), characterized in that: The motor (10) comprises: Primary structure (110); at least one secondary structure (130), the secondary structure (130) being spaced apart from the primary structure (110), the secondary structure (130) being configured as a plate-like structure; and At least one magnetic member (117), the magnetic member (117) being connected to the secondary structure (130), and the magnetic member (117) being located between the primary structure (110) and the secondary structure (130).

2. The electric machine (10) according to claim 1, characterized in that The primary structure (110) comprises at least one fixed surface (114), the fixed surface (114) being provided with a plurality of first protrusions (113), the plurality of first protrusions (113) being arranged at intervals along a first direction; a coil (112) is arranged around the first protrusion (113), the secondary structure (130) being arranged opposite to the coil (112), the center line of the coil (112) being perpendicular to the fixed surface (114), and the first direction being non-parallel to the center line of the coil.

3. The motor according to claim 2, characterized in that The same secondary structure (130) is provided with a plurality of magnetic components (117) spaced apart along the first direction, and additional grooves (116) are formed between adjacent magnetic components.

4. The electric machine (10) according to claim 2 or 3, characterized in that A first groove (111) is formed between adjacent first protrusions (113), and the coil (112) includes two first line segments (124), the two first line segments (124) are spaced apart along the first direction, one of the two first line segments (124) is located in one of the first grooves (111), and the other of the two first line segments (124) is located in another of the first grooves (111), and the length direction of the first line segments (124) is perpendicular to the first direction.

5. The electric machine (10) according to claim 4, characterized in that The coil (112) further includes a second line segment (125) connected to the first line segment (124), wherein the second line segment (125) is located between two of the first line segments (124) along the first direction; The second line segment (125) is located at two ends of the first protruding portion (113) along the length direction.

6. The electric machine (10) according to any one of claims 2 to 5, characterized in that: The primary structure (110) comprises a plurality of fixing surfaces (114), wherein the plurality of fixing surfaces (114) are arranged in a circumferential direction, and in the circumferential direction, the first protrusions (113) of adjacent fixing surfaces (114) are spaced apart to form a gap (126).

7. The electric machine (10) according to any one of claims 2 to 6, characterized in that: At least three-phase windings are arranged on the same fixed surface (114), each phase winding includes one coil (112) or each phase winding includes a plurality of coils (112) connected in series; and / or The primary structure (110) includes a plurality of fixing surfaces (114), and the coils (112) of different fixing surfaces (114) are not electrically connected to each other.

8. The electric machine (10) according to any one of claims 2 to 7, characterized in that: The size of the primary structure (110) along the first direction is greater than or equal to the size of the secondary structure (130) along the first direction.

9. The electric machine (10) according to any one of claims 2 to 8, characterized in that: The primary structure (110) includes a plurality of the fixing surfaces (114), and the plurality of the fixing surfaces (114) are arranged along the circumferential direction; the motor (10) further includes a support member (160), and the support member (160) includes a main body (161), and the main body (161) includes a plurality of inner surfaces (169), and the inner surfaces (169) are arranged one by one opposite to the fixing surfaces (114), and the inner surfaces (169) are connected to the secondary structure (130).

10. The electric machine (10) according to claim 9, characterized in that The support member (160) further includes a guide portion (163) connected to the main body (161), and the primary structure (110) further includes a guide hole (118), the axial direction of the guide hole (118) is parallel to the first direction, and the guide portion (163) is inserted into the guide hole (118).

11. The electric machine (10) according to claim 9 or 10, characterized in that The motor (10) further comprises a displacement sensor (166); a notch (167) is provided at a corner of the main body (161); the notch (167) penetrates two adjacent inner surfaces (169); and the displacement sensor (166) is arranged in the notch (167).

12. An active suspension (100), characterized in that: The active suspension (100) comprises an electric machine (10) according to any one of claims 1-11.

13. The active suspension (100) according to claim 12, characterized in that: The motor (10) is constructed so that the secondary structure (130) is movable relative to the primary structure (110) along a first direction. The active suspension (100) further includes an elastic member (150), the elastic member (150) is capable of generating elastic deformation along the first direction, the elastic member (150) includes a first end (151) and a second end (152) arranged opposite to each other along the first direction, the first end (151) of the elastic member (150) acts on the secondary structure (130), and the second end (152) of the elastic member (150) acts on the primary structure (110).

14. The active suspension (100) according to claim 13, characterized in that: The motor (10) further comprises a supporting member (160), wherein the supporting member (160) comprises a main body (161), wherein the main body (161) comprises an inner surface (169), wherein the inner surface (169) faces the primary structure (110) and the inner surface (169) is connected to the secondary structure (130), and the first end (151) of the elastic member (150) abuts against the supporting member (160), so that the first end (151) of the elastic member (150) acts on the secondary structure (130) through the supporting member (160).

15. The active suspension (100) according to claim 14, characterized in that: The support member (160) further includes a support plate (162), and the main body (161) further includes an outer surface (170). The support plate (162) is connected to the outer surface (170) and is arranged around the main body (161). The first end (151) of the elastic member (150) is in contact with the support plate (162).

16. The active suspension (100) according to claim 14 or 15, characterized in that: The active suspension (100) further includes a connecting member (180), wherein the connecting member (180) is fixedly connected to the primary structure (110), and the second end (152) of the elastic member (150) abuts against the connecting member (180), so that the second end (152) of the elastic member (150) acts on the primary structure (110) through the connecting member (180).

17. The active suspension (100) according to claim 16, characterized in that: The connecting member (180) includes an abutment plate (181) and a matching portion (182), wherein the matching portion (182) protrudes from the abutment plate (181) along the first direction toward the primary structure (110), and the second end (152) of the elastic member (150) abuts against the abutment plate (181).

18. The active suspension (100) according to claim 17, characterized in that: The primary structure (110) further comprises a guide hole (118), the matching portion (182) is inserted into the guide hole (118) along the first direction, and the matching portion (182) is fixedly connected to the guide hole (118).

19. The active suspension (100) according to claim 18, characterized in that: The supporting member (160) also includes a guiding portion (163), the matching portion (182) includes a matching hole (183), the axial direction of the matching hole (183) is parallel to the axial direction of the guide hole (118), the guiding portion (163) is inserted into the matching hole (183), and the guiding portion (163) is movable along the first direction relative to the matching hole (183).

20. A vehicle (200), characterized in that: The vehicle (200) comprises a motor (10) according to any one of claims 1 to 11, the motor (10) being configured such that the secondary structure (130) is movable relative to the primary structure (110) along a first direction, the vehicle (200) further comprising a body (210) and wheels (220), the body (210) being connected to a top of the primary structure (110), the wheels (220) being connected to a bottom of the secondary structure (130), the top of the primary structure (110) and the bottom of the secondary structure (130) being located at two ends of the motor (10) along the first direction, respectively; or, The vehicle (200) comprises an active suspension (100) according to any one of claims 12-19.

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