Suspension motor, suspension system and vehicle

Abstract

The utility model discloses a suspension motor, a suspension system and a vehicle, relates to the technical field of vehicles, and aims to solve the problem that a magnetic assembly in the suspension motor causes deformation of a guide rod, so that friction resistance between the guide rod and a stator assembly is increased, and normal operation of the suspension motor is affected. The suspension motor comprises a rotor assembly and a stator assembly which can move relatively in the axial direction of the suspension motor, one of the rotor assembly and the stator assembly is suitable for being connected with a vehicle body end, and the other one is suitable for being connected with a wheel end; one of the mover assembly and the stator assembly is provided with a guide piece, the other one of the mover assembly and the stator assembly is provided with a center piece, and the guide piece is matched with the center piece in the axial direction; the rigidity of the guiding piece is K, and K is larger than or equal to 7767 N / mm.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially relates to guide piece suspension motor, suspension system and vehicle. BACKGROUND

[0002] The suspension motor is the main component of the suspension, and the suspension motor usually comprises a movable component and a stator component capable of relative movement, the suspension motor is arranged between the vehicle body and the wheel, and the relative movement of the stator component and the stator component can adjust the distance between the vehicle body and the wheel, so as to adjust the stability of the vehicle driving.

[0003] The guide rod is usually arranged between the movable component and the stator component to play a guiding role when the movable component and the stator component move relatively. However, the magnetic assembly in the suspension motor has a radial side suction force on the guide rod, and under the action of the force, the guide rod will deform, thereby increasing the friction resistance of the guide rod when sliding and affecting the normal work of the suspension motor. SUMMARY

[0004] The utility model discloses guide piece suspension motor, suspension system and vehicle aim at solving the problem that the magnetic force assembly in the suspension motor makes the guide rod deform, thereby increasing the friction resistance of the guide rod when sliding and affecting the normal work of the suspension motor.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: in the first aspect of the application, a suspension motor is provided, which comprises: a movable component and a stator component capable of relative movement along the axial direction of the suspension motor, one of the movable component and the stator component is adapted to be connected with the vehicle body end, and the other is adapted to be connected with the wheel end; one of the movable component and the stator component is provided with a guide piece, and the other is provided with a center piece, the guide piece and the center piece cooperate in the axial direction; the stiffness of the guide piece is K, and K is greater than or equal to 7767N / mm.

[0006] By designing the appropriate guide stiffness of the guide piece, the application can ensure the maximum deformation of the guide piece, effectively control the relative fitting distance between the guide piece and the center piece, and control the resistance of the relative movement of the movable component and the stator component within the target range of the design value, so as to avoid the friction resistance between the guide piece and the center piece increasing due to the excessive deformation of the guide piece, and affect the normal work of the suspension motor.

[0007] In some embodiments, the diameter of the guide piece is not less than 23mm.

[0008] In this way, within the range allowed by the suspension motor structure design boundary, increasing the diameter of the guide piece can make the stiffness of the guide piece higher, thereby reducing the deformation of the guide piece.

[0009] In some embodiments, the elastic modulus of the guide member and the elastic modulus of the central member are both not less than 200 Gpa.

[0010] In this way, increasing the elastic modulus of the guide member and the central member can make the stiffness of the guide member higher, thereby reducing the deformation of the guide member and the central member.

[0011] In some embodiments, the stator assembly comprises the central member, and the mover assembly comprises the guide member and the lower fork arm, the guide member rod and the lower fork arm are connected, and the lower fork arm is adapted to be connected with the wheel.

[0012] In some embodiments, the guide member rod comprises a rod body and a base, one end of the rod body is nested with the central member rod, and the base is connected to the other end of the rod body and detachably connected with the lower fork arm.

[0013] In this way, by detachably connecting the guide member and the lower fork arm, when installing the guide member, the guide member can be first nested with the central member rod, and then the lower fork arm and the guide member are connected, which can facilitate the connection of the guide member with the stator assembly and the connection of the lower fork arm and the guide member, and when the lower fork arm and the guide member need to be overhauled and replaced, the lower fork arm and the guide member can be separated for individual overhaul and replacement, thereby facilitating the installation or overhaul of the guide member.

[0014] In some embodiments, the guide member comprises a rod body and a base, the rod body is used for sliding connection with the stator assembly along the axial direction of the suspension motor; the base is connected to one end of the rod body facing the lower fork arm; the lower fork arm comprises a body portion and a first connecting portion; the first connecting portion is connected to one end of the body portion facing the guide member and detachably connected with the base.

[0015] In some embodiments, the base comprises a first positioning member connected to the rod body; the first connecting portion is provided with a positioning groove recessed from the surface of the first connecting portion facing away from the guide member, and at least part of the first positioning member is located in the positioning groove.

[0016] In this way, by providing the first positioning member and the positioning groove, and by locating at least part of the first positioning member in the positioning groove, the base and the first connecting portion can be quickly aligned, thereby improving the installation efficiency and accuracy of the guide member.

[0017] In some embodiments, the first positioning member comprises a positioning column and a positioning plate, the positioning column is connected to the rod body; the positioning plate is connected to the positioning column and arranged around the positioning column; the positioning groove comprises a first groove portion and a second groove portion, the positioning plate is arranged in the first groove portion; the second groove portion is located on the side of the first groove portion facing away from the guide member, part of the first groove portion is arranged around the second groove portion, the positioning column is arranged in the first groove portion, and at least part of the positioning column is located in the second groove portion.

[0018] In some embodiments, the base further comprises a first connecting member connected to the first positioning member and arranged around the first positioning member; the first connecting member is located on the side of the first connecting portion facing the guide member and detachably connected to the first connecting portion.

[0019] In some embodiments, the first connecting member is provided with a plurality of first connecting holes arranged around the first positioning member; the first connecting portion is provided with a plurality of second connecting holes arranged around the mounting groove; the guide member further comprises a plurality of first fasteners, each first fastener being arranged in one first connecting hole and one second connecting hole.

[0020] In some embodiments, the guide member further comprises a reinforcing portion located at the end of the rod body facing the base and arranged around the rod body; the reinforcing portion is connected to both the rod body and the base.

[0021] In this way, the guide member is provided with the reinforcing portion arranged around the rod body and connected to both the rod body and the base; the reinforcing portion can share the force applied at the connection between the rod body and the base, so that the connection between the rod body and the base can withstand greater force and avoid breaking at the connection.

[0022] In some embodiments, the guide member is provided with an exhaust passage for connecting the first space and the second space; the first space is the space between the rod body and the stator assembly; the second space is the space between the stator assembly and the lower fork arm.

[0023] In this way, the exhaust passage can be provided to connect the air in the first space and the air in the second space, so as to reduce the air resistance when the mover assembly moves.

[0024] In some embodiments, the exhaust passage comprises a first passage and a second passage; the first passage extends from the side surface of the rod body facing away from the lower fork arm towards the lower fork arm and is used to connect the first space; the second passage extends along the outer circumferential surface of the rod body in the first direction and is connected to the first passage; the second passage is used to connect the second space; the first direction is perpendicular to the extension direction of the first passage.

[0025] In some embodiments, the mover assembly comprises a housing and a guide member; the lower fork arm is located outside the housing and detachably connected to the housing; at least part of the guide member is located inside the housing.

[0026] In some embodiments, the housing comprises a main body portion and a second connecting portion; the second connecting portion is connected to the main body portion and arranged around the main body portion; the lower fork arm further comprises a first connecting portion and a third connecting portion; the first connecting portion is connected to the guide member; the third connecting portion is connected to the first connecting portion and arranged around the first connecting portion; the second connecting portion is connected to the third connecting portion. In some embodiments, the housing comprises a main body portion and a second connecting portion; the second connecting portion is connected to the main body portion and arranged around the main body portion; the lower fork arm further comprises a first connecting portion and a third connecting portion; the first connecting portion is connected to the guide member; the third connecting portion is connected to the first connecting portion and arranged around the first connecting portion; the second connecting portion is connected to the third connecting portion.

[0027] In some embodiments, the third connecting member is provided with a plurality of third connecting holes, the plurality of third connecting holes being arranged around the main body portion; the third connecting portion is provided with a plurality of fourth connecting holes, the plurality of fourth connecting holes being arranged around the first connecting portion; and the mover assembly further comprises a plurality of second fasteners, each of the plurality of second fasteners being arranged through one of the third connecting holes and one of the second connecting holes.

[0028] In some embodiments, the housing is provided with a mounting opening, the mounting opening being in communication with the interior of the housing, and the guide member is arranged through the mounting opening; and the lower fork arm further comprises a positioning protrusion, the positioning protrusion being connected to a side of the third connecting portion facing the housing and being arranged around the first connecting portion, the positioning protrusion being at least partially located in the mounting opening.

[0029] In some embodiments, the mover assembly further comprises a magnetic member, the magnetic member being arranged on the inner circumferential wall surface of the housing.

[0030] In some embodiments, the material density of the guide member is not less than the material density of the lower fork arm.

[0031] In some embodiments, the material of the guide member comprises GCr15 steel.

[0032] In some embodiments, the material of the lower fork arm comprises aluminum alloy.

[0033] In a second aspect of the present application, the utility model provides a suspension system, comprising the above-mentioned suspension motor.

[0034] In a third aspect of the present application, the utility model provides a vehicle, comprising the above-mentioned suspension system, a vehicle body and a wheel; the vehicle body is connected with one of the stator assembly and the mover assembly of the suspension motor; the wheel is arranged below the vehicle body and is connected with the other one of the stator assembly and the mover assembly. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0036] Figure 1 It is a structural schematic view of a vehicle;

[0037] Figure 2 It is a structural schematic view of a suspension system;

[0038] Figure 3 It is a structural schematic view of a suspension motor;

[0039] Figure 4 It is a side view of a suspension motor;

[0040] Figure 5 Fig. 1 is a perspective view of a vehicle; Figure 4 Fig. 2 is a sectional view along A-A of Fig. 1;

[0041] Figure 6 Fig. 3 is an enlarged view of area B in Fig. 2; Figure 5

[0042] Figure 7 Fig. 4 is an enlarged view of area C in Fig. 2; Figure 5

[0043] Figure 8 Fig. 5 is a partial sectional view along A-A of Fig. 1; Figure 4

[0044] Fig. 6 is a structural schematic view of a mover assembly; Figure 9

[0045] Fig. 7 is a structural schematic view of a guide; Figure 10

[0046] Fig. 8 is a side view of the guide; Figure 11

[0047] Fig. 9 is an enlarged view of area D in Fig. 1; Figure 12 Figure 7 Fig. 10 is a sectional view along D-D of Fig. 1.

[0048] Reference signs:

[0049] 1000, vehicle; 1, suspension system; 2, vehicle body; 3, wheel;

[0050] 100, levitation motor; 200, top cover; 300, elastic element; 400, lower support;

[0051] 10, mover assembly; 11, housing; 111, main body portion; 112, second connecting portion; 1121, third connecting hole; 113, mounting port; 1141, second linear bearing; 12, magnetic member;

[0052] 20, stator assembly; 21, central member; 211, guide cavity; 22, first linear bearing; 114, mounting hole; 23, magnetic assembly; 231, core; 232, coil; 24, limiting member;

[0053] ​​​31, guide; 32, lower fork arm; 311, rod body; 312, base; 321, body part; 322, first connecting part; 3121, first positioning member; 3221, positioning groove; 3121a, positioning column; 3121b, positioning plate; 3221a, first groove part; 3221b, second groove part; 3122, first connecting member; 3122a, first connecting hole; 3222, second connecting hole; 313, reinforcing part; 314, exhaust passage; 3141, first passage; 3142, second passage; 323, third connecting part; 3231, fourth connecting hole; 324, positioning protrusion;

[0054] 40, buffer. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0056] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or relative position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Unless otherwise specified, the above directional description can be flexibly arranged in the actual application process under the condition of meeting the relative position relationship shown in the drawings.

[0057] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0058] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection", "communication" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected. It can be directly connected, or indirectly connected through an intermediate medium. It can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] In the embodiments of the present application, the terms "comprising", "containing" or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, article or apparatus that comprises a list of elements not only includes those elements, but also includes other elements that are not expressly listed, or other elements inherent in such process, article or apparatus. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, article or apparatus comprising the element.

[0060] In the embodiments of the present application, the words "exemplary" or "for example" are used to mean serving as an example or illustration. Any embodiment or design presented as "exemplary" or "for example" in the embodiments of the present application should not be construed as preferred or advantageous over other embodiments or design solutions. Rather, the use of "exemplary" or "for example" is intended to present concepts in a concrete manner.

[0061] In the description of the present application, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0062] As shown in Figure 1 The present application provides a vehicle 1000. The vehicle 1000 can be a pure electric vehicle, a hybrid electric vehicle, a plug-in hybrid electric vehicle, a range-extended electric vehicle, a fuel vehicle, etc. The vehicle 1000 can also be a sedan, a van, a bus, a truck, a trailer, etc.

[0063] As shown in Figure 1 The vehicle 1000 includes a vehicle body 2 and wheels 3. The vehicle body 2 is used for passengers to ride and carry articles, and the wheels 3 are installed below the vehicle body 2 to carry the vehicle body 2 and can roll on the road surface to make the vehicle 1000 travel.

[0064] As shown in Figure 1 The vehicle 1000 further includes a suspension system 1. The suspension system 1 is arranged between the vehicle body 2 and the wheels 3 to transmit force and torque between the vehicle body 2 and the wheels 3, and to buffer the impact force received by the vehicle body 2 during the travel of the vehicle 1000 to improve the riding or driving comfort.

[0065] The suspension system 1 can be a non-independent suspension, an independent suspension or an active suspension.

[0066] In some embodiments of the present application, the suspension system 1 is an active suspension, and the stiffness and damping characteristics of the active suspension are dynamically self-adapted according to the travel conditions of the vehicle 1000 (such as the motion state of the vehicle 1000 and the condition of the road surface, etc.) to make the suspension system 1 always in the best damping state.

[0067] like Figure 2 As shown, the suspension system 1 may include a suspension motor 100 and a roof 200. The roof 200 is connected to the suspension motor 100 and to the vehicle body 2. The suspension motor 100 is also connected to the wheels 3. When the suspension motor 100 operates, it can adjust the distance between the roof 200 and the wheels 3, thereby adjusting the distance between the vehicle body 2 and the wheels 3, so that the vehicle 1000 can drive more smoothly when turning and on rough roads.

[0068] In some examples, the suspension system 1 also includes a lower support 400 and an elastic element 300. The lower support 400 is connected to the suspension motor. The elastic element 300 is disposed between the lower support 400 and the top cover 200.

[0069] Specifically, such as Figure 3 and Figure 4 As shown, in some embodiments, such as Figure 1 As shown, the suspension motor 100 includes a stator assembly 20 and a mover assembly 10 that can move relative to each other along the axial direction of the suspension motor 100.

[0070] The stator assembly 20 can be connected to the vehicle body 2, and the mover assembly 10 can be connected to the wheel 3; or, the stator assembly 20 can also be connected to the wheel 3, and the mover assembly 10 can be connected to the vehicle body 2; this application does not limit this.

[0071] By moving the stator assembly and the mover assembly relative to each other along the axial direction of the suspension motor, the distance between the top cover 200 and the wheel 3 can be adjusted, thereby adjusting the distance between the body 2 and the wheel 3.

[0072] In some examples, such as Figure 4 and Figure 5 As shown, the mover assembly 10 includes a housing 11. A lower support 400 is connected to the housing 11.

[0073] like Figure 4 and Figure 5 As shown, the stator assembly 20 includes a center member 21. The top cover 200 is connected to the center member 21. In some embodiments, the center member 21 and the housing 11 are movable relative to each other along the axial direction of the suspension motor 100. The axial direction of the suspension motor 100 is aligned with the axial direction of the housing 11.

[0074] like Figure 4 and Figure 5 As shown, a portion of the central member 21 is located within the housing 11 and is capable of sliding relative to the housing 11 along its axial direction. The central member 21 can be a rod-like structure, a plate-like structure, or other irregular structures, etc., and this application does not limit its application to these possibilities.

[0075] The top cover 200 is capable of moving relative to the lower fork arm 32 by the relative sliding of the shell 11 and the center piece 21, so as to adjust the relative displacement between the top cover 200 and the lower fork arm 32, and further adjust the distance between the vehicle body and the wheel 3. As shown in Figure 2 and Figure 5 The suspension system 1 further comprises an elastic element 300. The elastic element 300 is connected between the lower support 400 and the top cover 200. When the levitation motor 100 adjusts the relative displacement between the top cover 200 and the lower fork arm 32, the elastic element 300 will stretch and contract with the relative movement of the top cover 200 and the lower fork arm 32, so as to adjust the buffering performance of the elastic element 300, so that the buffering performance of the elastic element 300 meets the buffering requirement of the vehicle 1000, thereby further improving the driving comfort of the vehicle 1000.

[0076] Specifically, the elastic element 300 abuts against the lower support 400 and the top cover 200, that is, the elastic element 300 is in a compressed state under the clamping of the lower support 400 and the top cover 200. The elastic element 300 can be connected with the lower support 400 and the top cover 200, or can not be connected.

[0077] When the shell 11 and the center piece 21 slide relative to each other, the lower support 400 and the top cover 200 also move relative to each other, so as to drive the elastic element 300 to stretch and contract, so as to adjust the buffering performance of the elastic element 300.

[0078] Specifically, the elastic element 300 can be a cylindrical elastic element 300 made of an elastic material such as rubber or latex. In this case, the elastic element 300 can be sleeved on the outside of the shell 11. The elastic element 300 can also comprise a plurality of elastic columns made of an elastic material such as rubber or latex. In this case, the plurality of elastic columns are arranged in a circumferential direction of the shell 11. Specifically, the elastic element 300 can be a spring, and the spring is sleeved on the outside of the shell 11.

[0079] In some embodiments, as shown in Figure 4 and Figure 5 The mover assembly 10 comprises a magnetic piece 12.

[0080] In some embodiments, the shell 11 comprises a top wall, a bottom wall, and a circumferential wall plate. The top wall and the bottom wall are arranged in a spaced manner, and the thickness direction of the top wall is consistent with the thickness direction of the bottom wall. The circumferential wall plate is in a cylindrical shape and is arranged between the top wall and the bottom wall. The top wall, the bottom wall, and the circumferential wall plate enclose an internal space of the shell 11.

[0081] As shown in Figure 4 and Figure 5As shown in the figures, the stator assembly can include a magnetic assembly 23 connected to the central member 21 and a magnetic member 12 connected to the housing 11, where the magnetic assembly 23 and the central member 21 form the stator assembly 20, and the magnetic member 12 and the housing 11 form the rotor assembly 10. The magnetic member 12 and the magnetic assembly 23 are both arranged between the central member 21 and the housing 11 within the housing 11, and are used to drive the housing 11 to move relative to the central member 21 along the axial direction of the housing 11.

[0082] In addition, the rotor assembly 10 can include a magnetic assembly, and the stator assembly 20 can include a magnetic member, i.e., the magnetic member can be arranged in one of the rotor assembly 10 and the stator assembly 20, and the magnetic assembly can be arranged in the other one of the rotor assembly 10 and the stator assembly 20, which is not limited in the present application.

[0083] As shown in the figures, Figure 4 and Figure 5 The magnetic assembly 23 is arranged between the inner circumferential surface of the housing 11 and the central member 21, is connected to the central member 21, and is arranged around the central member 21. The magnetic assembly 23 includes an iron core 231 and a coil 232, the iron core 231 is connected to the central member 21, and the iron core 231 has a coil groove formed thereon; the coil 232 is accommodated in the coil groove.

[0084] Specifically, as shown in the figures, Figure 4 and Figure 5 The central member 21 is in a rod-like structure, and the magnetic assembly 23 can include an iron core 231 and a coil 232. The iron core 231 is arranged on the outer circumferential surface of the central member 21, is in a ring shape, and is fixedly connected to the central member 21 by being arranged in the central member 21. The coil groove is arranged on the outer circumferential surface of the iron core 231, and the coil 232 is arranged in the coil groove and is wound on the iron core 231 along the circumferential direction of the iron core 231.

[0085] Specifically, the magnetic member 12 is fixed to the inner wall surface of the housing 11. In this way, when the magnetic assembly 23 is energized, a magnetic field is generated between the magnetic assembly 23 and the magnetic member 12, and the direction of the Lorentz force of the magnetic field is along the axial direction of the housing 11, so that an interaction force along the axial direction of the housing 11 is generated between the central member 21 and the housing 11, thereby driving the central member 21 and the housing 11 to move relative to each other along the axial direction of the housing 11. Moreover, the direction of the interaction force between the central member 21 and the housing 11 can be controlled by changing the flow direction of the current in the magnetic assembly 23.

[0086] Exemplarily, the magnetic member 12 can be a permanent magnet, an electromagnet, an energized coil 232, etc.

[0087] Exemplarily, the magnetic member 12 is in a ring-like structure. In this case, the central member 21 and the magnetic assembly 23 are both arranged in the magnetic member 12.

[0088] In some embodiments, the number of magnetic assemblies 23 is multiple, and the multiple magnetic assemblies 23 are arranged axially spaced along the shell 11. The number of magnetic pieces 12 is also multiple, and the multiple magnetic pieces 12 are arranged axially spaced along the shell 11.

[0089] It should be noted that the coil 232 and the core 231 form a whole, and the outer circumferential surface of the whole and the inner circumferential surface of the magnetic piece 12 have a gap therebetween, wherein the gap between the outer circumferential surface of the whole and the inner circumferential surface of the magnetic piece 12 can be greater than or equal to 0.5 mm and less than or equal to 1.5 mm.

[0090] As shown in Figure 5 and Figure 6 , in order to facilitate the part of the center piece 21 to be located in the shell 11 and to slide relative to the shell 11, the top wall of the shell 11 is provided with a mounting hole 114. The mounting hole 114 communicates with the internal space of the shell 11. The center piece 21 is arranged to pass through the mounting hole 114, and part of the center piece 21 is located in the shell 11. In this way, the center piece 21 can extend into the internal space of the shell 11 through the mounting hole 114, so that part of the center piece 21 is located in the shell 11.

[0091] In some embodiments, as shown in Figure 5 and Figure 6 , the center piece 21 is in sliding connection with the mounting hole 114. In this way, when the center piece 21 moves relative to the shell 11, the mounting hole 114 can limit the center piece 21 and the shell 11 to avoid the center piece 21 and the shell 11 from shaking or deviating.

[0092] As shown in Figure 5 and Figure 6 , in order to make the center piece 21 slide more smoothly in the mounting hole 114, a second linear bearing 1141 is further arranged between the center piece 21 and the mounting hole 114. The second linear bearing 1141 is arranged in the mounting hole 114, and the center piece 21 passes through the second linear bearing 1141 and is in sliding connection with the second linear bearing 1141.

[0093] It should be noted that the inner circumferential surface of the second linear bearing 1141 is usually provided with a lubricating coating or is provided with a lubricant such as water or oil, so as to reduce the friction between the second linear bearing 1141 and the center piece 21, so that the center piece 21 slides relative to the shell 11 more smoothly.

[0094] And the second linear bearing 1141 is usually made of metal materials such as bearing alloy, bronze, aluminum-based alloy, zinc-based alloy, or plastic materials such as phenolic plastic, nylon, and polytetrafluoroethylene. The above-mentioned materials have strong hardness, and thus have good compressive strength and wear resistance, so as to reduce the wear of the central part 21 and the second linear bearing 1141 during the sliding process of the central part 21 and the second linear bearing 1141, and improve the service life.

[0095] In addition, the second linear bearing can also be in interference fit with the top wall. The second linear bearing 1141 is connected with the top wall in the interference fit mode, which is convenient to connect, and compared with bolt connection and the like, can avoid opening holes on the sliding bearing, so as to ensure the structural strength of the sliding bearing.

[0096] The specific structure of the levitation motor 100 will be described in detail below.

[0097] As shown in Figure 4 , Figure 5 , Figure 7 and Figure 8 , the levitation motor comprises: a mover assembly 10 and a stator assembly 20 which can move axially relative to the levitation motor 100, one of the mover assembly 10 and the stator assembly 20 is adapted to be connected with the vehicle body end, and the other is adapted to be connected with the vehicle wheel end; one of the mover assembly 10 and the stator assembly 20 is provided with a guide piece 31, and the other is provided with a central part 21, the guide piece 31 and the central part 21 are matched in the axial direction; the stiffness of the guide piece 31 is K, K≥7767N / mm.

[0098] Wherein, the mover assembly 10 can be connected with the vehicle body end, and the stator assembly 20 can be connected with the vehicle wheel end; or the stator assembly 20 can be connected with the vehicle body end, and the mover assembly 10 can be connected with the vehicle wheel end; the present application does not limit this.

[0099] Wherein, the mover assembly 10 can be provided with a guide piece 31, and the stator assembly 20 can be provided with a central part 21; or the stator assembly 20 can be provided with a guide piece 31, and the mover assembly 10 can be provided with a central part 21; the present application does not limit this.

[0100] Wherein, the stiffness of the guide piece 31 can be 7767N / mm, 7780N / mm, 7790N / mm or 7800N / mm, etc., and the present application does not limit this.

[0101] The maximum deformation of the guide piece 31 can be ensured by setting the guide stiffness of the guide piece 31, the relative fitting distance between the mover assembly 10 and the stator assembly 20 can be effectively controlled, the resistance of the relative movement between the mover assembly 10 and the stator assembly 20 can be controlled within the target range of the design value, and the friction resistance between the guide piece 31 and the center piece 21 caused by excessive deformation of the guide piece 31 can be avoided, so that the normal work of the levitation motor 100 is affected.

[0102] In some embodiments, the diameter of the guide piece 31 is not less than 23 mm.

[0103] The diameter of the guide piece 31 can be 23 mm, 25 mm, 27 mm, 28 mm, 30 mm, 21 mm or 32 mm, etc., which is not limited in the application.

[0104] Therefore, within the range allowed by the structural design boundary of the levitation motor 100, increasing the diameter of the guide piece 31 can make the stiffness of the guide piece 31 higher, and thus reduce the deformation of the guide piece 31.

[0105] In some embodiments, the elastic modulus of the guide piece 31 and the elastic modulus of the center piece 21 are both not less than 200 Gpa.

[0106] The elastic modulus of the guide piece 31 can be 200 Gpa, 250 Gpa, 300 Gpa, 350 Gpa or 400 Gpa, etc., which is not limited in the application.

[0107] The elastic modulus of the center piece 21 can be 200 Gpa, 250 Gpa, 300 Gpa, 350 Gpa or 400 Gpa, etc., which is not limited in the application.

[0108] Therefore, increasing the elastic modulus of the guide piece 31 and the center piece 21 can make the stiffness of the guide piece 31 and the center piece 21 higher, and thus reduce the deformation of the guide piece 31 and the center piece 21.

[0109] In some embodiments, the stator assembly 20 includes the center piece 21, the mover assembly 10 includes the guide piece 31 and the lower fork arm 32, the guide piece 31 and the lower fork arm 32 are connected, and the lower fork arm 32 is adapted to be connected with the wheel.

[0110] In some embodiments, as shown in Figure 5 and Figure 8 The guide piece 31 includes a rod body 311 and a base 312, one end of the rod body 311 is nested with the center piece 21, the base 312 is connected to the other end of the rod body 311, and is detachably connected with the lower fork arm 32.

[0111] The base 312 and the lower fork arm 32 can be connected by a pin, a bolt or a clamping, and the application does not limit the connection mode.

[0112] In this way, by detachably connecting the guide 31 and the lower fork arm 32, when the guide 31 is installed, the guide 31 can be first connected with the center piece 21, and then the lower fork arm 32 and the guide 31 are connected, which facilitates the connection of the guide 31 and the stator assembly 20 and the connection of the lower fork arm 32 and the guide 31. When the lower fork arm 32 and the guide 31 need to be repaired and replaced, the lower fork arm 32 and the guide 31 can be separated for repair and replacement, thereby facilitating the installation or repair of the guide 31.

[0113] In some embodiments, as shown in Figure 5 and Figure 8 The guide 31 includes a rod body 311 and a base 312. The rod body 311 is used for sliding connection with the stator assembly 20 along the axial direction of the levitation motor 100. The base 312 is connected to one end of the rod body 311 facing the lower fork arm 32. The lower fork arm 32 includes a body part 321 and a first connecting part 322. The first connecting part 322 is connected to one end of the body part 321 facing the guide 31 and is detachably connected with the base 312.

[0114] The rod body 311 can be a cylindrical, elliptical cylindrical or irregular rod structure, and the application does not limit the shape of the rod body 311.

[0115] In addition, the base 312 can be a cylindrical, elliptical cylindrical or irregular sheet structure, and the first connecting part 322 can be a cylindrical, elliptical cylindrical or irregular structure, and the application does not limit the shape of the first connecting part 322.

[0116] It should be noted that the length direction of the rod body 311 is perpendicular to the plane where the base 312 is located.

[0117] For example, the base 312 is a circular plate structure, and the rod body 311 is a circular cylinder. The central axis of the rod body 311 coincides with the central axis of the base 312.

[0118] In this way, the guide 31 is provided with the base 312, the lower fork arm 32 is provided with the first connecting part 321, and the base 312 and the first connecting part 321 are detachably connected, which avoids opening a connecting hole on the rod body 311 of the guide 31 and the body part 321 of the lower fork arm 32, thereby reducing the strength of the guide 31 and the lower fork arm 32 as a whole.

[0119] In some embodiments, as shown in Figure 5 and Figure 8As shown, the base 312 includes a first positioning member 3121, which is connected to the rod body 311. The first connecting part 322 is provided with a positioning groove 3221, which is recessed from the surface of the first connecting part 322 toward the guide member 31 in a direction opposite to the guide member 31. At least a portion of the first positioning member 3121 is located in the positioning groove 3221.

[0120] The first positioning element 3121 may be in the form of a cylinder, an elliptical cylinder, or an irregularly shaped block structure, and this application does not limit it in this respect.

[0121] Furthermore, the positioning groove 3221 can be a cylindrical, elliptical, or irregularly shaped groove, and this application does not limit this. For example, the first positioning member 3121 is a cylindrical structure, coaxially arranged with the rod 311, and the positioning groove 3221 is a cylindrical groove. A portion of the first positioning member 3121 is located within the first positioning groove 3221, and the peripheral wall surface of the first positioning member 3121 contacts the peripheral wall surface of the positioning groove 3221. This prevents the first positioning member 3121 from shaking within the positioning groove 3221.

[0122] In this way, by setting a first positioning element 3121 and a positioning groove 3221, with at least a portion of the first positioning element 3121 located in the positioning groove 3221, the guide element 31 can quickly align the base 312 and the first connecting part 321, thereby improving the installation efficiency and accuracy of the guide element 31.

[0123] In some embodiments, such as Figure 8 , Figure 9 and Figure 11 As shown, the first positioning member 3121 includes a positioning post 3121a and a positioning plate 3121b. The positioning post 3121a is connected to the rod body 311. The positioning plate 3121b is connected to the positioning post 3121a and is arranged around the positioning post 3121a. The positioning groove 3221 includes a first groove portion 3221a and a second groove portion 3221b. The positioning plate 3121b is disposed in the first groove portion 3221a. The second groove portion 3221b is located on the side of the first groove portion 3221a opposite to the guide member 31. A portion of the first groove portion 3221a is arranged around the second groove portion 3221b. The positioning post 3121a passes through the first groove portion 3221a, and at least a portion of the positioning post 3121a is located in the second groove portion 3221b.

[0124] Thus, by placing the positioning plate 3121b in the first groove 3221a and at least a portion of the positioning post 3121a in the second groove 3221b, this application enables the base 312 and the first connecting part 321 to be quickly aligned, improving the installation efficiency and accuracy of the guide member 31. It also allows the positioning groove 3221 to limit the first positioning member 3121 in multiple segments, preventing the first positioning member 3121 from sliding out of the positioning groove 3221.

[0125] In some examples, the first slot portion 3221a can be a blind hole structure with an opening facing the guide 31. The second slot portion 3221b is recessed from the bottom wall surface of the first slot portion 3221a in a direction away from the guide 31. The bottom wall surface of the first slot portion 3221a is opposite to the opening of the first slot portion 3221a.

[0126] The positioning column 3121a can be a cylindrical, elliptical cylindrical or irregular column structure, and the positioning plate 3121b can be a cylindrical, elliptical cylindrical or irregular plate structure, which are not limited in the present application.

[0127] In addition, the first slot portion 3221a can be a cylindrical, elliptical cylindrical or irregular groove, and the second slot portion 3221b can be a cylindrical, elliptical cylindrical or irregular groove, which are not limited in the present application.

[0128] For example, the positioning column 3121a is a circular column, the positioning plate 3121b is a circular plate, the positioning column 3121a and the positioning plate 3121b are coaxially arranged, the first slot portion 3221a and the second slot portion 3221b are both circular grooves, the side wall surface of the positioning plate 3121b is in contact with the side wall surface of the first slot portion 3221a, and the side wall surface of the positioning column 3121a is in contact with the side wall surface of the second slot portion 3221b.

[0129] In some embodiments, the first positioning member 3121 can only include the positioning column 3121a. Alternatively, the first positioning member 3121 can only include the positioning plate 3121b. The positioning slot 3221 can only include the first slot portion 3221a. Alternatively, the positioning slot 3221 can only include the second slot portion 3221b.

[0130] In some embodiments, as shown in Figure 8 and Figure 9 The base 312 further includes a first connecting member 3122 connected to the first positioning member 3121 and arranged around the first positioning member 3121. The first connecting member 3122 is located on the side of the first connecting portion 322 facing the guide 31 and is detachably connected to the first connecting portion 322.

[0131] In this way, by arranging the first connecting member 3122 around the first positioning member 3121 and connecting the peripheral side of the base 312 to the first connecting portion 322, the connection between the base 312 and the first connecting portion 322 is more secure.

[0132] In some embodiments, as shown in Figure 8 and Figure 9As shown, the first connecting member 3122 is provided with a plurality of first connecting holes 3122a, and the plurality of first connecting holes 3122a are arranged around the first positioning member 3121. The first connecting portion 322 is provided with a plurality of second connecting holes 3222, and the plurality of second connecting holes 3222 are arranged around the mounting groove. The guide member 31 further comprises a plurality of first fasteners, one first fastener is arranged in one first connecting hole 3122a and one second connecting hole 3222.

[0133] In addition, the first fastener can be a bolt and nut, a rivet or a pin, etc., which is not limited in the present application.

[0134] In addition, the first connecting hole 3122a can be a threaded connecting hole or a smooth connecting hole, and the second connecting hole 3222 can be a threaded connecting hole or a smooth connecting hole, which is not limited in the present application.

[0135] In this way, by arranging a plurality of first fasteners, one first fastener is arranged in one first connecting hole 3122a and one second connecting hole 3222, so that the connection between the base 312 and the first connecting portion 322 is more secure.

[0136] In some embodiments, as shown in Figure 8 and Figure 10 As shown, the guide member 31 further comprises a reinforcing portion 313, the reinforcing portion 313 is located at one end of the rod body 311 towards the base 312, and is arranged around the rod body 311, and the reinforcing portion 313 is connected with the rod body 311 and the base 312.

[0137] It should be noted that the reinforcing portion 313 can surround the rod body 311 once. The reinforcing portion 313 can also be a plurality of reinforcing structures arranged at intervals around the rod body 311, wherein the reinforcing structure can be a reinforcing rib, a reinforcing block, etc., which is not limited in the present application.

[0138] In this way, by arranging the reinforcing portion 313 around the rod body 311, and the reinforcing portion 313 is connected with the rod body 311 and the base 312, the reinforcing portion 313 can share the force applied at the connection between the rod body 311 and the base 312, so that the connection between the rod body 311 and the base 312 can withstand greater force, and the rod body 311 and the base 312 are prevented from being broken at the connection.

[0139] In some embodiments, the material density of the guide member 31 is not less than the material density of the lower fork arm 32.

[0140] In this way, the material density of the guide member 31 is not less than the material density of the lower fork arm 32, that is, the strength of the guide member 31 is greater than the strength of the lower fork arm 32, which can ensure the strength of the guide member 31, and also can reduce the weight of the lower fork arm 32, so as to realize the lightweight design of the mover assembly 10.

[0141] In some embodiments, the material of the guide 31 comprises GCr15 steel.

[0142] In this way, the GCr15 steel has high strength, wear resistance and other characteristics, and the guide 31 made of GCr15 steel can ensure strength while improving service life.

[0143] The material of the guide 31 can also be tungsten alloy, titanium alloy, or carbon fiber, and the present application does not limit this.

[0144] In some embodiments, the material of the lower fork arm 32 comprises aluminum alloy.

[0145] In this way, the aluminum alloy has high strength, light weight, and other characteristics, and the lower fork arm 32 made of aluminum alloy can achieve lightweight design while ensuring strength.

[0146] The material of the lower fork arm 32 can also be tungsten alloy, titanium alloy, or carbon fiber, and the present application does not limit this.

[0147] In some embodiments, as shown in Figure 8 and Figure 9 The housing 11 comprises a main body portion 111 and a second connecting portion 112. The second connecting portion 112 is connected to the main body portion 111 and is arranged around the main body portion 111. The lower fork arm 32 further comprises a first connecting portion 322 and a third connecting portion 323, and the first connecting portion 322 is connected to the guide 31. The third connecting portion 323 is connected to the first connecting portion 322 and is arranged around the first connecting portion 322, and the second connecting portion 112 is connected to the third connecting portion 323.

[0148] The second connecting portion 112 can be in the shape of a cylinder, an elliptical cylinder, or an irregular sheet structure, and the third connecting portion 323 can be in the shape of a cylinder, an elliptical cylinder, or an irregular structure, and the present application does not limit this.

[0149] In this way, the present application can make the connection of the housing 11 and the lower fork arm 32 more convenient by arranging the second connecting portion 112 and the third connecting portion 323 and connecting the second connecting portion 112 and the third connecting portion 323.

[0150] In some embodiments, as shown in Figure 8 and Figure 9 The second connecting portion 112 is provided with a plurality of third connecting holes 1121, and the plurality of third connecting holes 1121 are arranged around the main body portion 111. The third connecting portion 323 is provided with a plurality of fourth connecting holes 3231, and the plurality of fourth connecting holes 3231 are arranged around the first connecting portion 322. The mover assembly 10 further comprises a plurality of second fasteners, one second fastener is arranged in one third connecting hole 1121 and four second connecting holes 3222.

[0151] In addition, the second fastener can be a bolt, a rivet, or a pin, and the like, and the application does not limit this.

[0152] The third connecting hole 1121 can be a threaded connecting hole or a smooth connecting hole, and the fourth connecting hole 3231 can be a threaded connecting hole or a smooth connecting hole, and the application does not limit this.

[0153] In this way, by arranging a plurality of second fasteners, one second fastener is arranged in one third connecting hole 1121 and four second connecting holes 3222, a plurality of third connecting holes 1121 are arranged around the main body part 111, and a plurality of fourth connecting holes 3231 are arranged around the first connecting part 322, so that the circumferential side of the second connecting part 112 and the third connecting part 323 can be connected by a plurality of second fasteners, and the connection of the second connecting part 112 and the third connecting part 323 is more uniform and more secure. It can also avoid opening connecting holes on the main body part 111 of the shell 11 and the body part 321 of the lower fork arm 32, which reduces the strength of the guide 31 and the lower fork arm 32 as a whole.

[0154] In some embodiments, as shown in Figure 8 and Figure 9 The shell 11 is provided with a mounting port 113, which communicates with the interior of the shell 11, and the guide 31 is arranged in the mounting port 113. The lower fork arm 32 further includes a positioning protrusion 324 connected to one side of the third connecting part 323 facing the shell 11 and arranged around the first connecting part 322, and at least part of the positioning protrusion 324 is located in the mounting port 113.

[0155] It should be noted that the mounting port 113 can be a cylindrical, elliptical cylindrical or irregularly shaped hole structure, and the positioning protrusion 324 can be a cylindrical, elliptical cylindrical or irregularly shaped ring structure, and the application does not limit this.

[0156] In this way, by arranging the positioning protrusion 324 and the mounting port 113, and at least part of the positioning protrusion 324 is located in the mounting port 113, the shell 11 and the lower fork arm 32 can be quickly positioned, and the installation efficiency and installation accuracy of the shell 11 and the lower fork arm 32 can be improved.

[0157] For example, the mounting port 113 is a circular opening, the positioning protrusion 324 is a circular ring structure, the mounting port 113 and the shell 11 are coaxially arranged, the positioning protrusion 324 and the first connecting part 322 are coaxially arranged, and the inner side wall surface of the mounting port 113 is in contact with the outer side wall surface of the positioning protrusion 324. It can avoid the positioning protrusion 324 from shaking in the mounting port 113.

[0158] In some embodiments, as shown inFigure 5 , Figure 8 and Figure 11 As shown, the center member 21 is provided with a guide cavity 211. The guide cavity 211 extends from the side surface of the center member 21 toward the lower fork 32 in a direction opposite to the lower fork 32. The guide member 31 is at least partially located in the guide cavity 211 and can slide in the guide cavity 211.

[0159] In addition, the outer wall surface of the guide member 31 and the inner wall surface of the guide cavity 211 can be in contact, or they can not be in contact.

[0160] In this way, by setting the guide cavity 211, the guide member 31 is at least partially located in the guide cavity 211 and can slide in the guide cavity 211, so that the guide member 31 can slide along the extension direction of the guide cavity 211, making the relative motion of the mover assembly 10 and the stator assembly 20 more stable.

[0161] For example, the central member 21 is a circular rod-shaped structure, the guide cavity 211 is a circular hole-shaped structure, and the axial direction of the guide cavity 211 is consistent with the axial direction of the central member 21, and the central member 21 and the guide cavity 211 are coaxially arranged.

[0162] In some embodiments, such as Figure 5 , Figure 8 and Figure 11 As shown, the guide member 31 is provided with an exhaust channel 314, which is used to connect the first space a and the second space b. The first space a is the space between the rod 311 and the stator assembly 20, and the second space b is the space between the stator assembly 20 and the lower fork arm 32.

[0163] In some embodiments, a first space a is formed between the guide member 31 and the inner wall surface of the guide cavity 211. The stator assembly 20, the lower fork arm 32, and the housing 11 enclose a second space b. The rod body 311 is provided with an exhaust channel 314, one end of which communicates with the first space a, and the other end of which communicates with the second space b.

[0164] In this way, when the mover assembly 10 and the stator assembly 20 move toward each other, the mover assembly 10 compresses the air in the first space a. At this time, the air in the first space a will create resistance to the mover assembly 10. The exhaust channel can discharge the air in the first space a into the second space b, thereby reducing the resistance when the mover assembly 10 moves.

[0165] When the mover assembly 10 and the stator assembly 20 move away from each other, the mover assembly 10 extrudes the air in the second space b to compress the air in the second space b, and the air in the second space b generates resistance to the movement of the mover assembly 10. The exhaust passage can exhaust the air in the second space b into the first space a to reduce the resistance to the movement of the mover assembly 10.

[0166] In some embodiments, as shown in Figure 8 and Figure 12 The exhaust passage 314 includes a first passage 3141 and a second passage 3142. The first passage 3141 extends from the side surface of the rod body 311 facing away from the lower fork arm 32 towards the lower fork arm 32 to communicate with the first space a. The second passage 3142 extends from the outer circumferential surface of the rod body 311 in a first direction and communicates with the first passage 3141. The second passage 3142 is configured to communicate with the second space b. The first direction is perpendicular to the extension direction of the first passage 3141.

[0167] In this way, by providing the first passage 3141 and the second passage 3142, and extending the first passage 3141 from the side surface of the rod body 311 facing away from the lower fork arm 32 towards the lower fork arm 32, and extending the second passage 3142 from the outer circumferential surface of the rod body 311 in the first direction, the processing of the exhaust passage 314 is more convenient.

[0168] In some embodiments, as shown in Figure 5 and Figure 7 The stator assembly 20 further includes a first linear bearing 22. The first linear bearing 22 is arranged in the guide cavity 211 and connected to the central member 21. The guide member 31 penetrates the first linear bearing 22 and is in sliding connection with the first linear bearing 22.

[0169] In this way, by providing the first linear bearing 22 and penetrating the guide member 31 in the first linear bearing 22 and in sliding connection with the first linear bearing 22, the guide member 31 slides more smoothly in the guide cavity 211.

[0170] It should be noted that the inner circumferential surface of the first linear bearing 22 is usually provided with a layer of lubricating coating or is provided with lubricants such as water and oil, so as to reduce the friction between the first linear bearing 22 and the guide member 31, to make the relative sliding of the central member 21 and the guide member 31 more smooth.

[0171] In addition, the first linear bearing 22 is usually made of bearing alloy, bronze, aluminum-based alloy, zinc-based alloy or phenolic plastic, nylon, polytetrafluoroethylene and other plastic materials. The above-mentioned materials have strong hardness, and therefore have good compressive strength and wear resistance, so as to reduce the wear of the central member 21 and the first linear bearing 22 during the sliding process of the central member 21 and the first linear bearing 22, and improve the service life.

[0172] In some embodiments, such as Figure 5 and Figure 7 As shown, in order to avoid direct collision between the center component 21 and the lower fork arm 32, which could damage the center component 21 or the lower fork arm 32 or reduce the service life of the center component 21 or the lower fork arm 32, the suspension motor 100 also includes a buffer component 40. The buffer component 40 is disposed between the center component 21 and the lower fork arm 32, and the buffer component 40 is connected to one of the center component 21 and the guide component 31.

[0173] The material of the buffer 40 can be rubber, plastic or polyurethane, etc., and this application does not limit it.

[0174] Thus, by setting a buffer 40 between the center member 21 and the lower fork arm 32, since the center member 21 and the lower fork arm 32 move relative to each other, when the lower fork arm 32 moves toward the center member 21 along the axial direction of the center member 21, the buffer 40 can deform when a collision occurs between the center member 21 and the lower fork arm 32, thus playing a buffering role. The buffer 40 can prevent the center member 21 and the lower fork arm 32 from directly colliding, which could damage the center member 21 or the lower fork arm 32 or reduce its service life.

[0175] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A levitation motor, characterized in that, include: A mover assembly (10) and a stator assembly (20) that can move relative to each other along the axial direction of the suspension motor, wherein one of the mover assembly (10) and the stator assembly (20) is adapted to be connected to the vehicle body end and the other is adapted to be connected to the wheel end; One of the moving part assembly (10) and the stator assembly (20) is provided with a guide (31), and the other is provided with a center part (21), wherein the guide (31) and the center part (21) cooperate with each other in the axial direction; The stiffness of the guide member (31) is K, where K≥7767N / mm.

2. The levitation motor according to claim 1, characterized in that, The diameter of the guide (31) is not less than 23 mm.

3. The levitation motor according to claim 1, characterized in that, The elastic modulus of both the guide member (31) and the center member (21) is not less than 200 GPa.

4. The levitation motor according to claim 1, characterized in that, The stator assembly (20) includes a center member (21), and the mover assembly (10) includes a guide member (31) and a lower fork arm (32), the guide member (31) and the lower fork arm (32) being connected, the lower fork arm (32) being adapted to be connected to a wheel.

5. The levitation motor according to claim 4, characterized in that, The guide member (31) includes a rod (311) and a base (312). One end of the rod is nested with the center member (21), and the base (312) is connected to the other end of the rod and is detachably connected to the lower fork arm (32).

6. The levitation motor according to claim 5, characterized in that, The lower fork arm (32) includes: Ontology (321); The first connecting part (322) is connected to one end of the main body (321) facing the guide (31) and is detachably connected to the base (312).

7. The levitation motor according to claim 6, characterized in that, The base (312) includes a first positioning member (3121), which is connected to the rod (311). The first connecting part (322) is provided with a positioning groove (3221), the positioning groove (3221) is recessed from the surface of the first connecting part (322) toward the guide (31) in a direction opposite to the guide (31), and at least a portion of the first positioning member (3121) is located in the positioning groove (3221).

8. The levitation motor according to claim 7, characterized in that, The first positioning element (3121) includes: Positioning post (3121a), which is connected to the rod (311); A positioning plate (3121b) is connected to the positioning post (3121a) and is arranged around the positioning post (3121a); The positioning groove (3221) includes: The first groove (3221a) is provided with the positioning plate (3121b). The second groove (3221b) is located on the side of the first groove (3221a) opposite to the guide (31). A portion of the first groove (3221a) is arranged around the second groove (3221b). The positioning post (3121a) passes through the first groove (3221a), and at least a portion of the positioning post (3121a) is located in the second groove (3221b).

9. The levitation motor according to claim 7, characterized in that, The base (312) also includes: The first connector (3122) is connected to the first positioning member (3121) and is disposed around the first positioning member (3121); the first connector (3122) is located on the side of the first connecting part (322) facing the guide member (31) and is detachably connected to the first connecting part (322).

10. The levitation motor according to claim 9, characterized in that, The first connector (3122) is provided with a plurality of first connecting holes (3122a), which are arranged around the first positioning member (3121); The first connecting part (322) is provided with a plurality of second connecting holes (3222), which are arranged around the positioning groove (3221); The guide (31) also includes a plurality of first fasteners, each of which passes through a first connecting hole (3122a) and a second connecting hole (3222).

11. The levitation motor according to claim 5, characterized in that, The guide (31) also includes: A reinforcing part (313) is located at one end of the rod (311) facing the base (312) and is arranged around the rod (311). The reinforcing part (313) is connected to both the rod (311) and the base (312).

12. The levitation motor according to claim 6, characterized in that, The guide member (31) is provided with an exhaust channel (314), which is used to connect a first space and a second space. The first space is the space between the rod body (311) and the stator assembly (20), and the second space is the space between the stator assembly (20) and the lower fork arm (32).

13. The levitation motor according to claim 12, characterized in that, The exhaust passage (314) includes: The first channel (3141) extends from the side surface of the rod (311) facing away from the lower fork (32) toward the lower fork (32) and is used to connect the first space; The second channel (3142) extends from the outer peripheral surface of the rod (311) along a first direction and communicates with the first channel (3141). The second channel (3142) is used to communicate with the second space. The first direction is perpendicular to the extension direction of the first channel (3141).

14. The levitation motor according to claim 7, characterized in that, The mover component (10) also includes: The housing (11), the lower fork arm (32) is located outside the housing (11) and is detachably connected to the housing (11), and at least a portion of the guide (31) is located inside the housing (11).

15. The levitation motor according to claim 14, characterized in that, The housing (11) includes: Main body (111); The second connecting part (112) is connected to the main body part (111) and is disposed around the main body part (111); The lower fork arm (32) also includes: The first connecting part (322) is connected to the guide member (31); A third connecting part (323) is connected to the first connecting part (322) and is disposed around the first connecting part (322), and a second connecting part (112) is connected to the third connecting part (323).

16. The levitation motor according to claim 15, characterized in that, The first connecting part (322) is provided with a plurality of second connecting holes (3222), which are arranged around the positioning groove (3221); the second connecting part (112) is provided with a plurality of third connecting holes (1121), which are arranged around the main body part (111); The third connecting part (323) is provided with a plurality of fourth connecting holes (3231), which are arranged around the first connecting part (322); The moving part assembly (10) further includes a plurality of second fasteners, each of the second fasteners passing through one of the third connecting holes (1121) and passing through one of the second connecting holes (3222).

17. The levitation motor according to claim 15, characterized in that, The housing (11) is provided with an installation port (113), the installation port (113) is connected to the interior of the housing (11), and the guide (31) passes through the installation port (113). The lower fork arm (32) also includes a positioning protrusion (324), which is connected to the side of the third connecting part (323) facing the housing (11) and is arranged around the first connecting part (322). The positioning protrusion (324) is at least partially located in the mounting port (113).

18. The levitation motor according to claim 15, characterized in that, The mover assembly also includes: A magnetic component (12) is disposed on the inner peripheral wall of the housing (11).

19. The levitation motor according to claim 5, characterized in that, The material density of the guide (31) is not less than the material density of the lower fork (32).

20. The levitation motor according to claim 19, characterized in that, The guide (31) is made of GCr15 steel.

21. The levitation motor according to claim 19, characterized in that, The lower fork arm is made of aluminum alloy.

22. A suspension system, characterized in that, include: The suspension motor (100) as described in any one of claims 1-21.

23. A vehicle, characterized in that, include: The suspension system (1) as described in claim 22; The vehicle body (2) is connected to one of the stator assembly (20) and the mover assembly (10) of the suspension motor (100); The wheel (3) is located below the vehicle body (2) and is connected to the other of the stator assembly (20) and the mover assembly (10).

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