Motor, active suspension and vehicle

Abstract

A motor, an active suspension and a vehicle, the motor comprising a primary structure and a secondary structure. The primary structure comprises at least one fixing surface and coils. The fixing surface is provided with a plurality of first protruding portions, the first protruding portions protruding out of the fixing surface, and the plurality of first protruding portions being arranged at intervals in a first direction. The coils are arranged to surround the first protruding portions, the surrounding center line of each coil being perpendicular to the fixing surface, and the first direction being not parallel to the surrounding center line. The secondary structure is spaced apart from the primary structure, and the secondary structure is arranged opposite to the coils.

Description

Motors, active suspension, and vehicles

[0001] This application claims priority to Chinese patent application number 202311096810.7, 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 power by using the relative motion between a single-sided moving slider and a stator with a single-sided permanent magnet. However, existing linear motors have low power density and cannot effectively improve efficiency.

[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] A primary structure, comprising:

[0008] at least one fixing surface, the fixing surface being provided with a plurality of first protrusions, the first protrusions protruding from the fixing surface, the plurality of first protrusions being spaced apart along a first direction, and

[0009] a coil, the coil being disposed around the first protrusion, the coil having a center line perpendicular to the fixing surface, and the first direction being non-parallel to the center line; and

[0010] A secondary structure is spaced apart from the primary structure and is arranged opposite to the coil.

[0011] Optionally, a first groove is formed between adjacent first protrusions, the coil includes a first line segment and a second line segment connected to the first line segment, 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, the other of the two first line segments is located in the other first groove, the length direction of the first line segment is perpendicular to the first direction, the second line segment is located between the two first line segments along the first direction, and the first protrusion is located between the two second line segments along the length direction.

[0012] Optionally, the primary structure further includes a magnetic component, the first protrusion is provided with an additional groove, and the magnetic component is provided in the additional groove.

[0013] Optionally, the primary structure includes a plurality of the fixing surfaces, and the plurality of the 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.

[0014] Optionally, the same fixed surface forms at least three-phase windings, each phase winding includes one coil or each phase winding includes multiple coils connected in series; and / or,

[0015] The primary structure includes a plurality of fixing surfaces, and the coils on different fixing surfaces are not electrically connected to each other.

[0016] Optionally, the secondary structure includes a plurality of second protrusions, which are spaced apart along the first direction, and second grooves are formed between adjacent second protrusions, with the opening direction of the second grooves facing the primary structure.

[0017] Optionally, the coil and the second groove are at least partially arranged opposite 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 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 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 toward the primary structure along the first direction, 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, which includes the above-mentioned motor.

[0031] The present application also provides a vehicle, which includes the above-mentioned active suspension, body and wheels, the body is connected to the top of the primary structure, 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 both ends of the motor along the height direction of the vehicle, and the height direction is parallel to the first direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 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,

[0033] FIG1 is a schematic cross-sectional view of an active suspension according to a preferred embodiment of the present application;

[0034] FIG2 is another cross-sectional schematic diagram of an active suspension according to a preferred embodiment of the present application;

[0035] FIG3 is a perspective schematic diagram of the primary structure shown in FIG1 ;

[0036] FIG4 is a perspective schematic diagram of the support member shown in FIG1 ;

[0037] FIG5 is another perspective schematic diagram of the support member shown in FIG1 , wherein the secondary structure is located in the support member;

[0038] FIG6 is a perspective schematic diagram of the primary structure and the secondary structure shown in FIG1 , wherein the secondary structure and the primary structure are arranged relative to each other;

[0039] FIG7 is a schematic diagram of the arrangement of the coil shown in FIG3 ;

[0040] FIG8 is another schematic diagram of the arrangement of the coils shown in FIG7;

[0041] FIG9 is a perspective schematic diagram of the main body of the primary structure shown in FIG1 ;

[0042] FIG10 is a schematic cross-sectional view of the active suspension shown in FIG1 ; and

[0043] FIG11 is a partial schematic diagram of a vehicle according to a preferred embodiment of the present application.

[0044] Description of reference numerals:

[0045] 10: Motor 100: Active suspension

[0046] 110: Primary structure 111: First groove

[0047] 112: Coil 113: First protrusion

[0048] 114: Fixed surface 115: Corner of coil

[0049] 116: Additional slot 117: Magnetic member

[0050] 118: Guide hole 119: Wire

[0051] 120: Three-phase winding 121: Multi-phase winding

[0052] 122: first side surface 123: second side surface

[0053] 124: First line segment 125: Second line segment

[0054] 126: Gap 127: Chamber

[0055] 130: Secondary structure 131: Second groove

[0056] 132: Second protrusion 150: Elastic member

[0057] 151: first end of the elastic member 152: second end of the elastic member

[0058] 160: Support member 161: Main body

[0059] 162: Support plate 163: Guide part

[0060] 164: Main body hole 165: Corner of the main body

[0061] 166: Displacement sensor 167: Notch

[0062] 168: Ring 169: Inner surface of the body

[0063] 170: Outer surface of the main body 180: Connecting member

[0064] 181: Abutment plate 182: Matching portion

[0065] 183: Matching hole 200: Vehicle

[0066] 210: Body 220: Wheels DETAILED DESCRIPTION

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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”.

[0071] 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.

[0072] 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.

[0073] 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 a secondary structure 130. The primary structure 110 includes at least one fixed surface 114, and 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 direction of the primary structure 110 is parallel to the first direction D1. The length direction 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 relative to each other in a direction 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.

[0074] The primary structure 110 also includes a coil 112, which is mounted on a fixed surface 114. The coil 112 is, for example, a disc-shaped coil. The centerline of the coil 112 is non-parallel to the first direction D1, for example, perpendicular to the first direction D1. The secondary structure 130 is disposed opposite the coil 112. A power source provides electrical energy to the coil 112. The power source can be a battery, an external AC power source, a generator, or other power supply devices. When energized, the coil 112 generates a magnetic field. The magnetic lines of force of the magnetic field pass through the fixed surface 114 and the secondary structure 130, enabling relative movement of the secondary structure 130 and the primary structure 110 in the first direction D1. In particular, when the primary structure 110 is fixed, the electromagnetic force can fully act on the secondary structure 130 in the first direction D1, enabling movement of the secondary structure 130 in the first direction D1. Of course, the secondary structure 130 can also be fixed, and the electromagnetic force between the secondary structure 130 and the coil 112 enables movement of the primary structure 110 in the first direction D1.

[0075] As an optional embodiment, in the first direction D1, the primary structure 110 is larger than the secondary structure 130. This saves material for the secondary structure 130 and reduces costs. As another optional embodiment, in the first direction D1, the length of the primary structure 110 is equal to the length of the secondary structure 130. This allows full utilization of the primary structure 110 and the secondary structure 130. Specifically, the coil 112 on the primary structure 110 can generate a sufficient magnetic field in the first direction D1, which can fully act on the secondary structure 130, thereby increasing the displacement of the secondary structure 130 along the first direction D1.

[0076] To ensure that the electromagnetic force generated by coil 112 on secondary structure 130 can drive secondary structure 130 to move with maximum efficiency, the main body of primary structure 110 is constructed as a polyhedron, such as a polygonal body. This structure is simple and reliable, and reduces manufacturing difficulty. Specifically, as shown in Figure 9, primary structure 110 includes at least one fixed surface 114, 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 a polygonal cylinder.

[0077] 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 four fixed surfaces 114. The four fixed surfaces 114 are connected in sequence. The angles between adjacent fixed 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.

[0078] The fixed 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 fixed surface 114. The first protrusions 113 protrude from the fixed surface 114 toward the secondary structure 130. The coil 112 is arranged around the first protrusions 113. The centerline of the coil 112 is perpendicular to the fixed surface 114. The coil 112 forms a runway-shaped coil structure. As a result, the coil 112 forms a closed structure, and the electromagnetic force generated by the coil 112 on the secondary structure 130 can drive the secondary structure 130 to move along the first direction D1. When energized, the coil 112 generates a magnetic field and makes the primary structure 110 magnetic. When energized, the coil 112 can generate a strong electromagnetic force on the secondary structure 130, thereby driving the secondary structure 130 to move.

[0079] The motor 10 has a simple structure, reliable performance and low processing difficulty.

[0080] First grooves 111 are formed between adjacent first protrusions 113. The openings of the first grooves 111 face toward the secondary structure 130. To further enhance the electromagnetic force exerted by the primary structure 110, equipped with the coil 112, on the secondary structure 130, 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.

[0081] A portion of the coil 112 is disposed in the first groove 111, with another portion of the coil 112 protruding from the first groove 111. Multiple first grooves 111 are each provided with a coil 112, and the coils 112 in each of the multiple first grooves 111 are capable of generating an electromagnetic force on the secondary structure 130. Each coil 112 in the first groove 111 is capable of forming an independent electronic unit, thereby enabling the windings 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. Each of the multiple first wire segments 124 is capable of generating an electromagnetic force acting on the secondary structure 130, causing it to move.

[0082] As shown in Figures 7 and 8, the corners 115 of the coils 112 in the multiple first grooves 111 each have an inlet and an outlet. The inlet of one coil 112 and the outlet of another coil 112 are connected via 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. At least three-phase windings are formed on the same fixed surface 114, each phase winding including one coil 112, or each phase winding including multiple coils 112 connected in series. For example, a three-phase winding 120 or a multi-phase winding 121.

[0083] In this way, the three-phase winding 120 or multi-phase winding 121 independently constructed on each fixed surface 114 can, together with the corresponding secondary structure 130, form a plurality of switched flux linear motor units. This can further diversify the electromagnetic force output modes of the active suspension 100 and increase the fault tolerance of the system.

[0084] 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.

[0085] Optionally, to enhance the electromagnetic force, as shown in Figures 1 to 3 and 9, the motor 10 further includes a magnetic member 117. The first protrusion 113 is provided with an additional slot 116, in which the magnetic member 117 is disposed. The magnetic member 117 is constructed of a steel magnet. The magnetic member 117 can interact with the electromagnetic force generated by the coil 112 to drive the secondary structure 130 to move in the first direction D1. The additional slot 116 opens toward the secondary structure 130. The magnetic member 117 is embedded in the additional slot 116. The coil 112 is disposed around the magnetic member 117. The fixing surface 114 is constructed as a planar structure, and the magnetic member 117 is constructed as a flat plate. This reduces machining and assembly accuracy. The length of the magnetic member 117 is parallel to the length of the first line segment 124 and perpendicular to the first direction D1. As a result, the magnetic member 117 can generate sufficient magnetic force in the first direction D1.

[0086] Since the coil 112 surrounds the first protrusion 113, two adjacent coils 112 are separated by a first protrusion 113. Therefore, the two adjacent coils 112 are not in direct contact. In this way, the energization of the two adjacent coils 112 does not affect each other (for example, it is not easy to short-circuit). Therefore, a magnetic component 117 is provided between the adjacent coils 112 along the first direction D1. As an optional embodiment, the size of the magnetic component 117 provided on each first protrusion 113 is the same. In particular, the length of the magnetic component 117 provided on each first protrusion 113 is the same. Thus, the magnetic components 117 provided on multiple first protrusions 113 can all generate electromagnetic forces in the same direction, thereby avoiding disorder in the mutual action of multiple electromagnetic forces.

[0087] To fully utilize the electromagnetic force of the coil 112, the longitudinal cross-section of the first protrusion 113 is rectangular. In this embodiment, the "longitudinal cross-section" is parallel to the first direction D1. The first protrusion 113 includes two first side surfaces 122 and two second side surfaces 123, which are 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 surfaces 122 are perpendicular to the first direction D1. The second side surfaces 123 are parallel to the first direction D1. The length of the first side surface 122 is greater than that of the second side surface 123. The 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 electromagnetic force along the first direction D1, thereby driving the secondary structure 130 to move along the first direction D1.

[0088] 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.

[0089] 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 electromagnetic force generated 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 current flow.

[0090] The length of the first line segment 124 is, for example, greater than the length of the second line segment 125. The first line segment 124 is disposed outside the first side surface 122. The first line segment 124 is aligned with the first side surface 122. The second line segment 125 is disposed outside the second side surface 123. The second line segment 125 is aligned with the second side surface 123. This ensures that the coil 112 has a strong electromagnetic force along the first direction D1, thereby driving the secondary structure 130 to move along the first direction D1.

[0091] The two second segments 125 of the same coil 112 are spaced apart in a direction perpendicular to the first direction D1, and the aforementioned first protrusion 113 is provided between the two second segments 125 along the length direction of the first segment 124. The first groove 111 and the first protrusion 113 are flush along the length 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 length direction of the first segment 124. That is, the second segment 125 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 length 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.

[0092] Another first protrusion 113 is provided between two adjacent coils 112. Specifically, another first protrusion 113 is located between a first segment 124 of one disc coil 112 and a first segment 124 of another coil 112. In other words, one first protrusion 113 is located between two adjacent first segments 124 of two adjacent coils 112. The second 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. Thus, the energization of the two adjacent coils 112 does not affect each other.

[0093] In order to avoid the coils 112 of 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. As shown in FIG10 , a gap 126 is formed between the first protrusions 113 of adjacent fixed surfaces 114. The gap 126 serves as a heat dissipation channel for the coils 112, and ensures that the coils 112 of adjacent fixed surfaces 114 are spaced apart, thereby avoiding 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 of another adjacent fixed surface 114. Thus, the first protrusion 113 of one fixed surface 114 and the coil 112 of another fixed surface 114 are spaced apart, avoiding mutual interference. The gap 126 can extend along the first direction D1 to form a cavity 127. The cavity 127 is, for example, constructed as a rectangular parallelepiped structure. 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 .

[0094] Figures 5 and 6 illustrate the structure of the secondary structure 130. The secondary structure 130 includes a plurality of second protrusions 132, which protrude toward the primary structure 110 in a second direction D2 perpendicular to the first direction D1. The plurality of second protrusions 132 are spaced apart along the first direction D1. Second grooves 131 are formed between adjacent second protrusions 132. The openings of the second grooves 131 face toward the primary structure 110. The second protrusions 132 and the second grooves 131 together form an uneven structure. When the coil 112 is energized, the magnetic field generated acts on the uneven structure of the secondary structure 130, causing the electromagnetic force generated by the coil 112 on the secondary structure 130 to drive the secondary structure 130 to move.

[0095] The second protrusion 132 is located between the two second grooves 131 along the first direction D1. In a projection of the motor 10 perpendicular to the first direction D1, the first groove 111 and the second groove 131 at least partially overlap. Consequently, the coil 112 is positioned at least partially opposite the second groove 131. This ensures that when the coil 112 is energized, an electromagnetic force is generated that acts on the second protrusion 132. The magnetic field lines of the magnetic field generated by the coil 112 intersect with the second protrusion 132, thereby driving the secondary structure 130 to move along the first direction D1. In a projection of the motor 10 along a second direction D2 perpendicular to the first direction D1, the coil 112 and the second groove 131 at least partially overlap.

[0096] Furthermore, in order to correspond to the primary structure 110, the motor 10 includes a plurality of secondary structures 130, so that the secondary structures 130 correspond one to one with the fixed surfaces 114. The plurality of secondary structures 130 can be 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 electromagnetic force output mode of the motor 10 can be made more diverse, thereby increasing the fault tolerance of the system.

[0097] 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 130 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.

[0098] 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, an electromagnetic force is generated on 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.

[0099] 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.

[0100] 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 .

[0101] The main body 161 is constructed as a single piece, offering a simple and reliable structure and reducing processing difficulty. The inner surfaces 169 are arranged one-on-one opposite the fixing surfaces 114. In the embodiment shown in FIG4 , the main body 161 is constructed as a rectangular sleeve structure, and the cross-sectional shape of the main body 161 is a rounded rectangular shape. Preferably, the cross-sectional shape of the main body 161 is a rounded square shape. 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 opposite the four fixing surfaces 114, respectively. Of course, the main body 161 can be constructed as other prismatic structures to match the shape of the primary structure 110. For example, the main body 161 can also be constructed as a triangular prism, a pentagonal prism, a hexagonal prism, or a prismatic structure with multiple faces, depending on the shape of the primary structure 110. This embodiment is not intended to be limiting.

[0102] 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, the movement of the secondary structure 130 drives the main body 161 to move along the first direction D1. As shown in FIG4 , the inner surface 169 faces the primary structure 110. The inner surface 169 is connected to the secondary structure 130. Furthermore, each inner surface 169 is connected to a secondary structure 130. As a result, each fixed surface 114 of the primary structure 110 faces a secondary structure 130. When energized, the coil 112 on each fixed surface 114 can act on the corresponding secondary structure 130, causing the secondary structure 130 to move. Multiple secondary structures 130 can move at least partially simultaneously, thereby collectively driving the support member 160 to move.

[0103] To monitor the displacement of the secondary structure 130 in real time, the main body 161 is also provided 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 with displacement sensor 166 when coil 112 is energized, and improves space utilization within support member 160.

[0104] 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.

[0105] As shown in Figures 3 and 6, 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 that the secondary structure 130 moves linearly in the first direction D1. This prevents the primary and secondary structures 110, 130, from contacting each other due to radially unbalanced magnetic pull when eccentric, thereby ensuring a constant air gap between the primary and secondary structures 110, 130 during operation.

[0106] FIG11 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 the 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.

[0107] 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 to the vehicle body 210, and one end of the secondary structure 130 is connected to the wheel 220. The electromagnetic force generated by the coil 112 on the secondary structure 130 can drive the secondary structure 130 to move, thereby driving the wheel 220 to move, thereby reducing vibration of the vehicle body 210.

[0108] As shown in Figures 1, 2, and 10, the active suspension 100 preferably further includes an elastic member 150. The elastic member 150 is configured as a hard, rigid spring. The ends of the elastic member 150 are configured to abut against the vehicle body 210 and the wheel 220, respectively. In this embodiment, "abutment" (or counteraction) can be direct or indirect contact.

[0109] For example, the elastic member 150 is connected to the primary structure 110 and the secondary structure 130 at its two ends along a first direction D1. In this embodiment, the "first direction D1" is parallel to the height 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 two ends of the elastic member 150 along the first direction D1. The first end 151 of the elastic member 150 acts on the secondary structure 130, while the second end 152 of the elastic member 150 acts on the primary structure 110.

[0110] 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 exerted on the wheel 220 when the vehicle 200 travels on a bumpy road, thereby providing shock absorption for the vehicle body 210. 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 and the secondary structure 130. 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.

[0111] The first end 151 of the elastic member 150 can act on the secondary structure 130 by abutting against the support member 160 , so as 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.

[0112] 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.

[0113] 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.

[0114] 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. In this way, the elastic member 150 acts on the primary structure 110 by abutting against the connecting member 180, thereby preventing the primary structure 110 and the vehicle body 210 from being directly connected to the elastic member 150, thereby preventing damage to the primary structure 110 and affecting the generation of the electromagnetic force.

[0115] 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.

[0116] 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 .

[0117] 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.

[0118] 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.

[0119] 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.

[0120] For example, as shown in FIG1 , the guide portion 163 can fit tightly against 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 positive, and the electromagnetic force generated by the coil 112 drives 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 in the direction 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 the vibration of the vehicle body 210.

[0121] 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 electromagnetic force generated by the coil 112 drives 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 to compress the elastic member 150, thereby driving the wheel 220 to move upward to mate with the protrusion, thereby reducing vibration of the vehicle body 210.

[0122] 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.

[0123] 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.

[0124] 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: A primary structure (110), the primary structure (110) comprising: at least one fixing surface (114), the fixing surface (114) being provided with a plurality of first protrusions (113), the first protrusions (113) protruding from the fixing surface (114), the plurality of first protrusions (113) being arranged at intervals along a first direction, and a coil (112), the coil (112) being arranged around the first protruding portion (113), the center line of the coil (112) being perpendicular to the fixing surface (114), and the first direction being non-parallel to the center line of the coil; and A secondary structure (130) is spaced apart from the primary structure (110), and the secondary structure (130) is arranged opposite to the coil (112).

2. The electric machine (10) according to claim 1, characterized in that A first groove (111) is formed between adjacent first protrusions (113); the coil (112) comprises a first line segment (124) and a second line segment (125) connected to the first line segment (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); the other of the two first line segments (124) is located in the other of the first grooves (111); the length direction of the first line segment (124) is perpendicular to the first direction; the second line segment (125) is located between the two first line segments (124) along the first direction; and the first protrusion (113) is located between the two second line segments (125) along the length direction.

3. The electric machine (10) according to claim 1 or 2, characterized in that: The motor (10) further comprises: A magnetic component (117), wherein the first protruding portion (113) is provided with an additional groove (116), and the magnetic component (117) is arranged in the additional groove (116).

4. The electric machine (10) according to any one of claims 1 to 3, characterized in that: The primary structure (110) comprises a plurality of fixing surfaces (114), and the plurality of fixing surfaces (114) are arranged in a circumferential direction; in the circumferential direction, the first protrusions (113) of adjacent fixing surfaces (114) are spaced apart to form a gap (126).

5. The electric machine (10) according to any one of claims 1 to 4, characterized in that: The same fixed surface (114) forms at least three-phase windings, 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.

6. The electric machine (10) according to any one of claims 1 to 5, characterized in that: The secondary structure (130) comprises: A plurality of second protrusions (132), wherein the plurality of second protrusions (132) are arranged at intervals along the first direction, and second grooves (131) are formed between adjacent second protrusions (132), and the opening direction of the second grooves (131) faces the primary structure (110).

7. The electric machine (10) according to claim 6, characterized in that The coil (112) and the second groove (131) are at least partially arranged opposite to each other.

8. The electric machine (10) according to any one of claims 1 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 1 to 8, characterized in that: The primary structure (110) comprises a plurality of fixing surfaces (114), and the plurality of fixing surfaces (114) are arranged along the circumferential direction; 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 a plurality of inner surfaces (169), wherein the inner surfaces (169) are arranged opposite to the fixing surfaces (114) one by one, and wherein 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 comprises a guide portion (163) connected to the main body (161); the primary structure (110) comprises a guide hole (118); an 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 active suspension (100) further includes an elastic member (150), the elastic member (150) being capable of generating elastic deformation along the first direction, the elastic member (150) including 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) acting on the secondary structure (130), and the second end (152) of the elastic member (150) acting 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) comprises an abutment plate (181) and a matching portion (182), wherein the matching portion (182) protrudes from the abutment plate (181) toward the primary structure (110) along the first direction, 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 the electric machine (10) according to any one of claims 1 to 12, or, The vehicle (200) comprises an active suspension (100) according to any one of claims 13 to 19, a vehicle body (210) and wheels (220), wherein the vehicle body (210) is connected to the top of the primary structure (110), the wheels (220) are connected to the bottom of the secondary structure (130), and the top of the primary structure (110) and the bottom of the secondary structure (130) are respectively located at two ends of the motor (10) along the first direction.

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