CN219487106U - Electromagnetic suspension of vehicle and vehicle - Google Patents

Abstract

The utility model discloses an electromagnetic suspension of a vehicle and the vehicle, wherein the electromagnetic suspension of the vehicle comprises a linear motor unit and an elastic unit, the linear motor unit comprises a stator component and a rotor component, one of the stator component and the rotor component is suitable for being connected with a vehicle body, the other one of the stator component and the rotor component is suitable for being connected with wheels, an avoidance groove for avoiding a transmission shaft is formed at the lower part of the rotor component, the transmission shaft is used for being in transmission connection with the wheels arranged along the left-right direction, and the elastic unit is connected with the linear motor unit. According to the electromagnetic suspension of the vehicle, the avoidance groove for avoiding the transmission shaft is formed in the lower part of the rotor assembly, so that the electromagnetic suspension occupies less front and rear space of the transmission shaft, arrangement of other parts of the vehicle is facilitated, and the overall structure is more compact. In addition, the main body part of the linear motor unit can be positioned above the transmission shaft, and the space above the transmission shaft is fully utilized, so that the space utilization rate above the transmission shaft can be improved.

Description

Electromagnetic suspension of vehicle and vehicle

Technical Field

The utility model relates to the field of vehicles, in particular to an electromagnetic suspension of a vehicle and the vehicle.

Background

In the related art, the electromagnetic suspension of the vehicle is integrally arranged at the front and rear positions of the transmission shaft, occupies more space in front and rear of the transmission shaft, is unfavorable for the arrangement of other parts of the vehicle, and has lower overall space utilization rate.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide an electromagnetic suspension for a vehicle, in which an avoidance groove for avoiding a transmission shaft is formed at a lower portion of a mover assembly, and when the electromagnetic suspension is mounted on the vehicle, the avoidance groove can define an avoidance space for avoiding the transmission shaft, so that the electromagnetic suspension occupies less front and rear space of the transmission shaft, which is beneficial to arrangement of other parts of the vehicle, and the overall structure is more compact. In addition, the main body part of the linear motor unit can be positioned above the transmission shaft, and the space above the transmission shaft is fully utilized, so that the space utilization rate above the transmission shaft can be improved.

The utility model further provides a vehicle with the electromagnetic suspension of the vehicle.

An electromagnetic suspension of a vehicle according to an embodiment of a first aspect of the utility model includes: the linear motor unit comprises a stator assembly and a rotor assembly, one of the stator assembly and the rotor assembly is suitable for being connected with a vehicle body, the other rotor assembly is suitable for being connected with a wheel, an avoidance groove for avoiding a transmission shaft is formed in the lower portion of the rotor assembly, and the transmission shaft is used for being in transmission connection with the wheel arranged in the left-right direction; and the elastic unit is connected with the linear motor unit.

According to the electromagnetic suspension of the vehicle, the avoidance groove for avoiding the transmission shaft is formed in the lower portion of the rotor assembly, when the electromagnetic suspension is mounted on the vehicle, the avoidance groove can limit the avoidance space for avoiding the transmission shaft, so that the electromagnetic suspension occupies less front and rear space of the transmission shaft, arrangement of other parts of the vehicle is facilitated, and the overall structure is more compact. In addition, the main body part of the linear motor unit can be positioned above the transmission shaft, and the space above the transmission shaft is fully utilized, so that the space utilization rate above the transmission shaft can be improved.

According to some embodiments of the utility model, the mover assembly includes a mover and a mounting member including a mounting section to which the mover is mounted and a connection section connected to a lower end of the mounting section, the connection section being adapted to be connected to the wheel, and the escape recess being formed in the connection section.

According to some embodiments of the utility model, the relief groove is formed by a portion of the connecting section being recessed toward a center direction adjacent to the vehicle.

According to some embodiments of the utility model, the connecting section is integrally formed with the mounting section.

According to some embodiments of the utility model, the relief groove is U-shaped.

According to some embodiments of the utility model, the stator assembly comprises a plurality of stators, the rotor assembly comprises a plurality of rotors, the number of the rotors is the same as that of the stators and corresponds to that of the stators one by one, each pair of the stators and the rotors form a sub-linear motor, and at least part of the stators are independently controlled.

According to some embodiments of the utility model, each of the stators is independently controlled.

According to some embodiments of the utility model, the sub-linear motor is flat.

According to some embodiments of the utility model, the stator assembly comprises a housing and a plurality of stators, the stators and the movers are all arranged in the housing, the stators are connected with the housing, the axial direction of the housing extends along the up-down direction, and the plurality of sub linear motors are arranged along the circumferential direction of the housing.

According to some embodiments of the utility model, the plurality of sub-linear motors are arranged in a polygon.

According to some embodiments of the utility model, the number of the sub-linear motors is three, and the three sub-linear motors are arranged in a triangle.

According to some embodiments of the utility model, the stator is flat; and/or the mover is in a flat plate shape.

According to some embodiments of the utility model, the mover assembly further comprises: the mounting piece, the mounting piece includes installation section and linkage segment, the linkage segment is connected the lower extreme of installation section, the linkage segment be suitable for with the wheel links to each other, dodge the recess form in the linkage segment, a plurality of the active cell is all located the installation section just follows the circumference of installation section is arranged.

According to some embodiments of the utility model, the outer circumferential surface of the mounting section has a plurality of mounting surfaces arranged along the circumferential direction of the mounting section, the mounting surfaces are plane surfaces, the number of the mounting surfaces is the same as that of the movers and corresponds to that of the movers one by one, and the movers are mounted and fixed on the corresponding mounting surfaces.

According to some embodiments of the utility model, the number of the movers is three, the number of the mounting surfaces is three, and the cross section of the mounting section is triangular.

According to some embodiments of the utility model, the electromagnetic suspension of the vehicle further comprises: the guide rod extends along the upper and lower direction, the installation section is formed with the guide slot that extends along the upper and lower direction, the one end of guide rod with stator module links to each other and the other end is the free end, the other end of guide rod is located in the guide slot.

According to some alternative embodiments of the utility model, the elastic unit comprises a spring, the spring is sleeved on the outer peripheral side of the linear motor unit, the upper end of the spring is connected with the stator assembly, and the lower end of the spring is connected with the rotor assembly.

According to some embodiments of the utility model, the electromagnetic suspension of the vehicle further comprises: an upper support and a lower support, wherein the upper support is arranged at the upper end of the stator assembly, the lower support is arranged at the lower end of the rotor assembly, the upper end of the spring is connected with the upper support, and the lower end of the spring is connected with the lower support

According to an embodiment of the second aspect of the present utility model, a vehicle includes: an electromagnetic suspension of a vehicle according to the embodiment of the above first aspect of the present utility model.

According to the vehicle provided by the embodiment of the utility model, through the electromagnetic suspension of the vehicle, the avoidance groove for avoiding the transmission shaft is formed at the lower part of the rotor assembly, and when the electromagnetic suspension is mounted on the vehicle, the avoidance groove can limit the avoidance space for avoiding the transmission shaft, so that the electromagnetic suspension occupies less front and rear space of the transmission shaft, the arrangement of other parts of the vehicle is facilitated, and the overall structure is more compact. In addition, the main body part of the linear motor unit can be positioned above the transmission shaft, and the space above the transmission shaft is fully utilized, so that the space utilization rate above the transmission shaft can be improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic illustration of an assembly of an electromagnetic suspension and an on-wheel brake of a vehicle according to some embodiments of the utility model;

FIG. 2 is a schematic illustration of the electromagnetic suspension of FIG. 1;

FIG. 3 is a longitudinal cross-sectional view of the electromagnetic suspension of FIG. 2;

fig. 4 is a cross-sectional view taken along line A-A in fig. 2.

Reference numerals:

100. an electromagnetic suspension;

10. a linear motor unit; 1. a stator assembly; 11. a stator; 12. a housing; 2. a mover assembly; 21. a mover; 22. a mounting member; 221. a mounting surface; 222. a guide groove; 223. a mounting section; 224. a connection section; 225. avoiding the groove; 3. a sub linear motor; 4. a mounting flange; 5. a guide rod;

20. an elastic unit; 61. a spring; 62. an upper support; 63. a lower support;

30. a lower control arm;

40. a brake;

50. and a transmission shaft.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

An electromagnetic suspension 100 of a vehicle according to an embodiment of the present utility model is described below with reference to fig. 1 to 4.

As shown in fig. 1 to 3, an electromagnetic suspension 100 of a vehicle according to an embodiment of a first aspect of the present utility model includes: a linear motor unit 10 and an elastic unit 20.

The linear motor unit 10 includes a stator assembly 1 and a mover assembly 2, one of the stator assembly 1 and the mover assembly 2 being adapted to be connected to a vehicle body and the other being adapted to be connected to a wheel. For example, when the stator assembly 1 is attached to the vehicle body, the mover assembly 2 is attached to the vehicle wheel; when the stator assembly 1 is connected to the wheel, the mover assembly 2 is connected to the vehicle body. When the linear motor unit 10 is operated, an interaction force between the stator assembly 1 and the mover assembly 2 may be generated, so that a relative movement between the stator assembly 1 and the mover assembly 2 is generated in an up-down direction. One of the stator assembly 1 and the rotor assembly 2 is suitable for being connected with a vehicle body and the other is suitable for being connected with wheels, and the distance between the vehicle body and the wheels can be controlled when the linear motor unit 10 works, so that the vibration reduction effect of the linear motor unit 10 on the vehicle body can be realized when the vehicle runs on an uneven road surface.

For example, in some embodiments of the present utility model, the vehicle may independently control the linear motor units 10 on different sides of the vehicle, thereby enhancing the vibration damping effect of the electromagnetic suspension 100 on the vehicle. When the vehicle runs on the road, the vehicle speed sensor, the vehicle height position sensor and the vehicle body acceleration sensor collect real-time information of the vehicle at the moment and simultaneously transmit the collected information to the control module in real time. The control module compares the information feedback with the preset index height, and outputs corresponding signals to the electromagnetic control module and the power module according to the comparison result. The power module outputs control information such as different current sizes, directions, the number of the control execution sub linear motors 3 and the like to the linear motor units 10 on different sides of the vehicle, so that the linear motor units 10 on different sides output corresponding required force to restrain up-and-down motion of the vehicle body, and the actual height of the vehicle body is adjusted to the required index height, thereby better realizing the vibration reduction effect of the electromagnetic suspension 100 on the vehicle and improving the stability of the vehicle in the running process.

In addition, the vehicle can also improve the trafficability and the escaping ability of the vehicle by independently controlling the linear motor units 10 on different sides of the vehicle. When the unilateral wheel encounters a road surface with a low attachment coefficient and a slipping phenomenon occurs, the control module can output current in the corresponding direction and the corresponding magnitude to the linear motor unit 10 on the corresponding side through the battery control module and the power module, so that the linear motor unit 10 can lift the unilateral wheel, and the trafficability of the vehicle and the escaping capability are improved.

The mover assembly 2 is formed at a lower portion thereof with a dodging groove 225 for dodging the driving shaft 50, and the driving shaft 50 is used for driving and connecting wheels arranged in a left-right direction. When the electromagnetic suspension 100 is mounted on a vehicle, the avoidance groove 225 can limit the avoidance space of the avoidance transmission shaft 50, so that the electromagnetic suspension 100 occupies less front and rear space of the transmission shaft 50, which is beneficial to the arrangement of other parts of the vehicle and makes the whole structure more compact. In addition, the main body portion of the linear motor unit 10 can be distributed in the space above the drive shaft 50, and the space above the drive shaft 50 can be fully utilized, so that the space utilization above the drive shaft 50 can be improved.

In addition, since the front and rear spaces of the drive shaft 50 of the front-drive vehicle type are small, the arrangement of the conventional electromagnetic suspension is not facilitated. Therefore, the avoidance grooves 225 enable the main body part of the linear motor unit 10 to be distributed in the space above the transmission shaft 50, and enable the main body part of the linear motor unit 10 to occupy the front and rear space of the transmission shaft 50 to be smaller, so that the electromagnetic suspension 100 can be suitable for front-drive vehicles, rear-drive vehicles and four-drive vehicles, and the application range of the electromagnetic suspension 100 is enlarged.

The elastic unit 20 is connected to the linear motor unit 10. The elastic unit 20 can support the vehicle body while attenuating a portion of vibration transmitted from the wheel to the vehicle body. The elastic unit 20 is connected with the linear motor unit 10, so that the electromagnetic suspension 100 has better vibration damping effect on the vehicle body. And the damping effect of the linear motor unit 10 on the elastic unit 20 can be conveniently achieved, and the vibration amplitude of the elastic unit 20 is reduced.

According to the electromagnetic suspension 100 of the vehicle provided by the embodiment of the utility model, the avoidance groove 225 for avoiding the transmission shaft 50 is formed at the lower part of the rotor assembly 2, so that when the electromagnetic suspension 100 is installed on the vehicle, the avoidance groove 225 can limit the avoidance space for avoiding the transmission shaft 50, the electromagnetic suspension 100 occupies less front and rear space of the transmission shaft 50, the arrangement of other parts of the vehicle is facilitated, and the overall structure is more compact. In addition, the main body portion of the linear motor unit 10 can be positioned above the drive shaft 50, and the space above the drive shaft 50 can be fully utilized, so that the space utilization above the drive shaft 50 can be improved.

According to some embodiments of the present utility model, referring to fig. 3, the mover assembly 2 includes a mover 21 and a mounting member 22, the mounting member 22 includes a mounting section 223 and a connection section 224, the mover 21 is mounted to the mounting section 223, the connection section 224 is connected to a lower end of the mounting section 223, and the connection section 224 is adapted to be connected to a wheel. The mounting section 223 may have a fixing effect on the mover 21, for example, the connection section 224 may be connected to the brake 40 of the wheel through the lower control arm 30, thereby achieving connection between the mover assembly 2 and the wheel. When the linear motor unit 10 is operated, a relative movement is generated between the mover 21 of the mover assembly 2 and the stator assembly 1 in the up-down direction. The movement of the mover 21 drives the mounting section 223 to move, so that the mounting section 223 can drive the connecting section 224 to move, and the distance between the wheel and the vehicle body can be changed due to the fact that the connecting section 224 is connected with the wheel, and the vibration reduction effect of the electromagnetic suspension 100 on the vehicle is achieved.

The avoidance groove 225 is formed on the connection section 224, so that the connection section 224 can form a space for avoiding the transmission shaft 50, the collision between the connection section 224 and the transmission shaft 50 in the whole working process is prevented, and the safety of the transmission shaft 50 is improved. And the space above the transmission shaft 50 can be fully utilized, the utilization rate of the space is improved, and the whole structure is more compact.

According to some embodiments of the present utility model, referring to fig. 2-3, the relief groove 225 is formed by a portion of the connecting section 224 recessed toward the center of the adjacent vehicle. By the arrangement, when the vehicle collides, a movement buffer space in the vehicle center direction can be provided for the whole electromagnetic suspension 100, so that the damage to the transmission shaft 50 caused by the collision between the connecting section 224 of the electromagnetic suspension 100 and the transmission shaft 50 is avoided, and the safety of the transmission shaft 50 is improved. In addition, when the vehicle arranges the steering gear on one side of the transmission shaft 50 far away from the center direction of the vehicle, the arrangement can avoid the interference between the connecting section 224 and the steering tie rod, so that the overall structure distribution is more reasonable, the electromagnetic suspension 100 can be suitable for more vehicle types, and the application range of the electromagnetic suspension 100 is enlarged.

According to some embodiments of the present utility model, referring to fig. 3, the connection section 224 is integrally formed with the mounting section 223, which may increase the structural strength and rigidity of the whole mounting member 22, making the connection between the connection section 224 and the mounting section 223 more reliable. And the number of the whole parts is small, the production cost is reduced, and the assembly efficiency is improved. While allowing less space for mounting of the mounting member 22 and a more compact overall structure.

According to some embodiments of the present utility model, referring to fig. 2-3, the avoidance groove 225 is U-shaped, so that the space of the connection section 224 for avoiding the transmission shaft 50 can be better ensured, and meanwhile, the overall structure is more compact, and the structural strength and rigidity of the connection section 224 are ensured.

According to some embodiments of the present utility model, referring to fig. 3-4, the stator assembly 1 includes a plurality of stators 11, the mover assembly 2 includes a plurality of movers 21, and the number of movers 21 is the same as and corresponds to the number of stators 11 one by one, such that each mover 21 may be positioned opposite one stator 11. Each pair of stator 11 and mover 21 constitutes one sub-linear motor 3. The stator 11 may include an electromagnetic coil, and the mover 21 may include a permanent magnet. When the sub-linear motor 3 is operated, when current passes through the electromagnetic coil in the stator 11, the electromagnetic coil generates a magnetic field, and a repulsive or attractive magnetic force is generated between the stator 11 and the mover 21 according to the interaction between the magnetic field of the stator 11 and the magnetic field of the permanent magnet in the mover 21, so that the stator 11 and the mover 21 are relatively moved in the up-down direction.

By such arrangement, the linear motor unit 10 can be provided with the plurality of sub-linear motors 3, and when the linear motor unit 10 works, compared with the single sub-linear motor 3 in the related art, the plurality of sub-linear motors 3 can increase the whole thrust of the linear motor unit 10 and expand the whole thrust range of the linear motor, so that the vibration reduction effect of the linear motor unit 10 on the vehicle can be improved, and the stability of the vehicle can be improved.

At least part of the stators 11 are independently controllable, e.g. part of the stators 11 may be independently controllable or all of the stators 11 may be independently controllable. The independent control of the stator 11 is that the electromagnetic coil of the stator 11 can be controlled independently, and the independent control of the electromagnetic coil of the stator 11 comprises the control of the connection or disconnection of the current in the electromagnetic coil, and can also further comprise the current magnitude and the current direction in the electromagnetic coil. When the linear motor unit 10 works, at least part of the stators 11 can be independently controlled, so that the number of the stators 11 electrified in the stator assembly 1 can be changed, the working number of the sub-linear motors 3 is changed, the adjustment of the whole thrust of the linear motor unit 10 is realized, the electromagnetic suspension 100 can meet the vibration reduction requirement of a vehicle, and the whole vibration reduction effect is improved.

The thrust of the electromagnetic suspension 100 on the vehicle body is required to be different for the vehicle body under different vibration amplitudes. For example, when the vehicle body vibration amplitude is large, the thrust force that the electromagnetic suspension 100 is required to provide is large. When the vehicle body vibration amplitude is small, the thrust force that the electromagnetic suspension 100 is required to provide is small. Thus, at least part of the stators 11 are independently controlled, and the electromagnetic suspension 100 can have proper thrust by changing the number of the stators 11 electrified in the stator assembly 1, so that the electromagnetic suspension 100 can better meet the integral vibration reduction requirement, and a better vibration reduction effect is realized. Meanwhile, when the vibration amplitude of the vehicle body is smaller, the thrust required to be provided by the electromagnetic suspension 100 is smaller, and the number of the electrified stators 11 can be reduced, so that the energy consumption of the electromagnetic suspension 100 can be reduced, and the whole electromagnetic suspension is more energy-saving.

For example, when the thrust force provided by the electromagnetic suspension 100 is required to be larger, all or most of the stators 11 can be energized, that is, the number of the energized stators 11 is increased, so that the linear motor unit 10 has larger thrust force, and a better vibration reduction effect on the vehicle body is realized; when the thrust force provided by the electromagnetic suspension 100 is required to be smaller, a small part of the stators 11 can be electrified, namely, the number of the electrified stators 11 is reduced, so that the linear motor unit 10 has smaller thrust force, a better vibration reduction effect on a vehicle body can be ensured, and the whole energy consumption of the linear motor unit 10 can be reduced.

According to some embodiments of the present utility model, referring to fig. 3-4, each stator 11 is independently controlled. When the linear motor unit 10 is operated, the energization and the de-energization of each stator 11 can be controlled, so that the thrust range of the electromagnetic suspension 100 as a whole can be increased. When the linear motor unit 10 works, the working state of each stator 11 can be reasonably controlled according to the vibration amplitude of the vehicle body, so that the electromagnetic suspension 100 is provided with proper thrust to reduce the vibration amplitude, the integral vibration reduction requirement is met, and the electromagnetic suspension 100 is ensured to have a good vibration reduction effect on the vehicle body.

According to some embodiments of the present utility model, referring to fig. 3, the sub-linear motor 3 is in a flat plate shape, so that the sub-linear motor 3 has the advantages of larger thrust and high precision, and has a simple structure, and the extension of the movement stroke is more convenient. Meanwhile, the whole occupied space of the sub linear motor 3 is smaller, and the structure is more compact.

According to some embodiments of the present utility model, referring to fig. 3 to 4, the stator assembly 1 includes a housing 12 and a plurality of stators 11, the stators 11 and the mover 21 are all disposed in the housing 12, the housing 12 can protect the stators 11 and the mover 21 from sundries falling between the stators 11 and the mover 21, and damage to the sub-linear motor 3 is avoided, so that normal use of the linear motor unit 10 as a whole can be ensured. The stator 11 is connected to the housing 12. Thus, when the sub-linear motor 3 is operated, the stator 11 can be integrally fixed, thereby facilitating the movement of the driving mover 21.

The axial direction of the housing 12 extends in the up-down direction, and the plurality of sub-linear motors 3 are arranged in the circumferential direction of the housing 12. Thus, on the one hand, the internal structure of the shell 12 can be more compact, and the whole space of the whole vehicle occupied by the shell 12 is smaller. On the other hand, the sub-linear motor 3 can conveniently adjust the height of the vehicle body relative to the wheels along the up-down direction, so that the vibration reduction effect of the electromagnetic suspension 100 on the vehicle body can be ensured.

For example, in the embodiment of the present utility model, the upper end of the linear motor unit 10 is provided with a mounting flange 4, and the mounting flange 4 is connected to the vehicle body by bolts, thereby fixing the linear motor unit 10 with respect to the vehicle body. The stator assembly 1 may be connected to the mounting flange 4 by a housing 12 so that the stator assembly 1 may be fixed relative to the vehicle body.

According to some embodiments of the present utility model, referring to fig. 4, the plurality of sub-linear motors 3 are arranged in a polygonal shape, so that the electromagnetic suspension 100 can bear forces in all directions during the running of the vehicle, the overall structure of the electromagnetic suspension 100 is more stable, and the stability of the electromagnetic suspension 100 is improved.

According to some embodiments of the present utility model, referring to fig. 4, the number of sub-linear motors 3 is three, so that a range of a large thrust of the linear motor unit 10 can be ensured, and the vibration reduction effect of the electromagnetic suspension 100 on the whole vehicle is better. But also the whole cost is lower, and the cost is saved. The three sub linear motors 3 are arranged in a triangle shape, so that the structural strength and rigidity of the linear motor unit 10 can be enhanced, and the stability of the linear motor unit 10 can be improved.

According to some embodiments of the present utility model, referring to fig. 3, the stator 11 is in a flat plate shape, which is convenient for arrangement and installation of the stator 11, so that the overall structure is more compact, and reasonable utilization of the overall space is facilitated.

According to some embodiments of the present utility model, referring to fig. 3, the mover 21 is in a flat plate shape, so that the stress area of the mover 21 is larger, and thus the power is more magnetically received from the stator 11, and the vibration reduction effect of the electromagnetic suspension 100 is ensured.

According to some embodiments of the present utility model, referring to fig. 3, the stator 11 of the sub-linear motor 3 is disposed parallel to and opposite to the corresponding mover 21, so that the distances between the positions of the mover 21 facing the stator 11 and the positions of the stator 11 facing the mover 21 are the same, and thus the stress of the whole mover 21 is more uniform when the sub-linear motor 3 is operated, and the stability of the movement of the mover 21 can be improved.

According to some embodiments of the utility model, referring to fig. 1 and 3, the mover assembly 2 further comprises: the mounting member 22, the mounting member 22 includes a mounting section 223 and a connecting section 224, the connecting section 224 is connected to the lower end of the mounting section 223, the connecting section 224 is suitable for connecting with a wheel, for example, in the embodiment of the present utility model, the upper end of the linear motor unit 10 is provided with a mounting flange 4, and the mounting flange 4 is connected with a vehicle body through bolts. The stator assembly 1 comprises a housing 12 and a plurality of stators 11, the housing 12 of the stator assembly 1 being connected to the vehicle body by means of the mounting flange 4. For example, the connection section 224 of the mounting member 22 is connected to the brake 40 of the wheel via the lower control arm 30, thereby achieving the connection between the mover assembly 2 and the wheel.

The avoidance groove 225 is formed on the connection section 224, so that the connection section 224 can form a space for avoiding the transmission shaft 50, the collision between the connection section 224 and the transmission shaft 50 in the whole working process is prevented, and the safety of the transmission shaft 50 is improved. And the space above the transmission shaft 50 can be fully utilized, the utilization rate of the space is improved, and the whole structure is more compact.

The installation section 223 is all located to a plurality of active cell 21, can integrate a plurality of active cell 21 on the installation section 223, and the installation of a plurality of active cell 21 is convenient to make things convenient for all active cell 21 to link to each other with the wheel through mounting 22. When the stator 11 is fixed to the vehicle body and the sub-linear motor 3 is operated, an electric current flows through the stator 11, so that an interaction magnetic force is generated between the stator 11 and the mover 21, and the mover 21 is moved by the magnetic force. The motion of the rotor 21 drives the mounting section 223, so that the mounting section 223 can drive the connecting section 224 to move, and the connecting section 224 is connected with the wheels, so that the distance between the wheels and the vehicle body can be changed, the vibration reduction effect of the electromagnetic suspension 100 on the vehicle is realized, and the trafficability of the vehicle in the running process is improved.

The multiple movers 21 are distributed along the circumference of the mounting section 223, so that the multiple movers 21 can be conveniently connected with the mounting section 223, and meanwhile, the whole structure of the mover assembly 2 is more compact, so that the whole space occupied by the mover assembly 2 is smaller.

According to some embodiments of the present utility model, referring to fig. 3 to 4, the outer circumferential surface of the mounting section 223 has a plurality of mounting surfaces 221 arranged along the circumferential direction of the mounting section 223, the mounting surfaces 221 are planar, the number of the mounting surfaces 221 is the same as and one-to-one corresponding to the number of the movers 21, and the movers 21 are mounted and fixed to the corresponding mounting surfaces 221. For example, the mover 21 is flat, the mounting surface 221 is flat, so that the contact area between the mover 21 and the mounting surface 221 is large, and the mover 21 is conveniently fixed to the mounting surface 221, thereby improving the safety and stability of the mover 21 when the sub-linear motor 3 is operated. The mover 21 is in one-to-one correspondence with the mounting surfaces 221 in position and number, so that the connection of the mover 21 and the mounting sections 223 can be made more stable, and the overall movement of the linear motor unit 10 can be made more reliable.

According to some embodiments of the present utility model, referring to fig. 4, the number of the movers 21 is three, so that a range of a large thrust of the linear motor unit 10 can be ensured, and the vibration reduction effect of the electromagnetic suspension 100 on the whole vehicle is better. But also the whole cost is lower, and the cost is saved. The mounting surfaces 221 are three, and the cross section of the mounting section 223 is triangular. By the arrangement, on one hand, the mounting section 223 can bear force in all directions, and when the single or a plurality of movers 21 move, the mounting section 223 can move under the action of the movers 21. On the other hand, the cross section of the mounting section 223 is triangular, so that the overall structural strength and rigidity of the mounting section 223 can be enhanced, and the safety and stability of the mounting section 223 are ensured.

According to some embodiments of the utility model, referring to fig. 3, the electromagnetic suspension 100 of the vehicle further includes: the guide rod 5, the guide rod 5 extends along the up-down direction, the mounting section 223 is formed with a guide groove 222 extending along the up-down direction, one end of the guide rod 5 is connected with the stator assembly 1, the other end is a free end, and the other end of the guide rod 5 is positioned in the guide groove 222. One end of the guide rod 5 is connected to the stator assembly 1, and can be fixed relative to the vehicle body by the stator assembly 1. The other end of the guide bar 5 is positioned in the guide groove 222 of the mounting member 22 and is engaged with the guide groove 222, so that the mounting member 22 can be guided to move the mounting member 22 in the up-down direction along the guide bar 5.

When the linear motor unit 10 works, the mover 21 of the mover assembly 2 moves under the action of the stator assembly 1, and the mounting member 22 can move together under the driving of the mover 21. Since the other end of the guide bar 5 is located in the guide groove 222 of the mount 22, the mount 22 can be moved in the up-down direction along the guide bar 5. The stator assembly 1 is fixed relative to the vehicle body, the mounting piece 22 is connected with the vehicle wheels, and the distance between the vehicle body and the vehicle wheels can be adjusted by moving the mounting piece 22 in the up-down direction, so that the height of the vehicle body relative to the vehicle wheels can be changed, and the vibration reduction effect of the electromagnetic suspension 100 on the whole vehicle body is better realized.

According to some alternative embodiments of the present utility model, referring to fig. 1 to 3, the elastic unit 20 includes a spring 61, and the spring 61 is sleeved on the outer circumferential side of the linear motor unit 10, so that the overall space of the electromagnetic suspension 100 can be more compact, the space occupied by the electromagnetic suspension 100 in the up-down direction is smaller, and the overall space utilization is improved. The upper end of the spring 61 is connected to the stator assembly 1, and the lower end of the spring 61 is connected to the mover assembly 2. Since the stator assembly 1 is connected to the vehicle body, the mover assembly 2 is connected to the vehicle wheels. Thus, the upper end of the spring 61 may be coupled to the vehicle body through the stator assembly 1, and the lower end of the spring 61 may be coupled to the wheel through the mover assembly 2. The springs 61 can thereby support the vehicle body and can dampen the vibrations transmitted to the vehicle body by portions of the wheels.

When the vehicle is traveling on a flat road surface, the linear motor unit 10 may be deactivated, the body being supported by the springs 61, and vibrations transmitted to the body by the wheels of the portion being damped. The small vibration of the wheels in the up-down direction can drive the rotor assembly 2 to move up and down, so that the magnetic induction wire of the rotor assembly 2 continuously cuts the electromagnetic coil in the stator assembly 1 to generate partial current, and the energy of the vibration can be partially converted into electric energy, thereby realizing the energy-saving effect.

When the vehicle is traveling on an uneven road surface, the linear motor unit 10 operates, and the springs 61 act as supports for the vehicle body. The linear motor changes the moving direction and the thrust of the rotor assembly 2 according to the up-and-down vibration amplitude and direction of the wheels, and changes the moving direction and the thrust of the rotor assembly 2 according to the current direction and the current magnitude continuously, so that the direction of the thrust is opposite to the vibration direction of the wheels, and the electromagnetic suspension 100 can realize the vibration attenuation of the wheels transmitted to the vehicle body integrally, and the vehicle is more stable and safer in the running process.

According to some embodiments of the utility model, referring to fig. 1-3, the electromagnetic suspension 100 of the vehicle further comprises: an upper support 62 and a lower support 63, the upper support 62 is provided at the upper end of the stator assembly 1, the lower support 63 is provided at the lower end of the mover assembly 2, the upper end of the spring 61 is connected to the upper support 62, and the lower end of the spring 61 is connected to the lower support 63. The spring 61 is installed between the upper support 62 and the lower support 63, and the upper support 62 and the lower support 63 can fix and support the spring 61, thereby facilitating the connection of the spring 61 with the stator assembly 1 and the mover assembly 2. For example, the upper support 62 may be coupled to the housing 12 of the stator assembly 1 by fasteners, and the lower support 63 may be coupled to the mounting member 22 of the mover assembly 2 by fasteners, welding, or the like.

According to a second aspect of the present utility model, a vehicle includes: the electromagnetic suspension 100 of the vehicle according to the embodiment of the first aspect of the utility model described above.

According to the vehicle provided by the utility model, through the electromagnetic suspension 100 of the vehicle, the avoidance groove 225 for avoiding the transmission shaft 50 is formed at the lower part of the rotor assembly 2, when the electromagnetic suspension 100 is installed on the vehicle, the avoidance groove 225 can limit the avoidance space for avoiding the transmission shaft 50, so that the electromagnetic suspension 100 occupies less front and rear space of the transmission shaft 50, the arrangement of other parts of the vehicle is facilitated, and the overall structure is more compact. In addition, the main body portion of the linear motor unit 10 can be positioned above the drive shaft 50, and the space above the drive shaft 50 can be fully utilized, so that the space utilization above the drive shaft 50 can be improved.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (19)

1. An electromagnetic suspension for a vehicle, comprising:

the linear motor unit comprises a stator assembly and a rotor assembly, one of the stator assembly and the rotor assembly is suitable for being connected with a vehicle body, the other rotor assembly is suitable for being connected with a wheel, an avoidance groove for avoiding a transmission shaft is formed in the lower portion of the rotor assembly, and the transmission shaft is used for being in transmission connection with the wheel arranged in the left-right direction;

and the elastic unit is connected with the linear motor unit.

2. The electromagnetic suspension of claim 1, wherein the mover assembly includes a mover and a mounting member, the mounting member including a mounting section and a connecting section, the mover being mounted to the mounting section, the connecting section being connected to a lower end of the mounting section, the connecting section being adapted to be connected to the wheel, the avoidance groove being formed in the connecting section.

3. The electromagnetic suspension of a vehicle according to claim 2, characterized in that the escape recess is formed by a portion of the connecting section being recessed toward a center direction adjacent to the vehicle.

4. The electromagnetic suspension of a vehicle of claim 2, wherein the connecting section is integrally formed with the mounting section.

5. The electromagnetic suspension of claim 1, wherein the relief groove is U-shaped.

6. The electromagnetic suspension of claim 1, wherein the stator assembly comprises a plurality of stators, the mover assembly comprises a plurality of movers, the number of movers is the same as and corresponds to the number of stators one by one, each pair of the stators and the movers form a sub-linear motor, and at least part of the stators are independently controlled.

7. The electromagnetic suspension of claim 6, wherein each of the stators is independently controlled.

8. The electromagnetic suspension of claim 6, wherein the sub-linear motor is flat.

9. The electromagnetic suspension of claim 6, wherein the stator assembly comprises a housing and a plurality of stators, the stators and the mover are all disposed in the housing, the stators are connected with the housing, the axial direction of the housing extends in the up-down direction, and the plurality of sub-linear motors are arranged in the circumferential direction of the housing.

10. The electromagnetic suspension of claim 9, wherein a plurality of said sub-linear motors are arranged in a polygonal configuration.

11. The electromagnetic suspension of claim 10, wherein the number of sub-linear motors is three, and the three sub-linear motors are arranged in a triangle.

12. The electromagnetic suspension for a vehicle according to claim 6, wherein the stator is flat plate-like; and/or the mover is in a flat plate shape.

13. The electromagnetic suspension of a vehicle of claim 6, wherein the mover assembly further comprises: the mounting piece, the mounting piece includes installation section and linkage segment, the linkage segment is connected the lower extreme of installation section, the linkage segment be suitable for with the wheel links to each other, dodge the recess form in the linkage segment, a plurality of the active cell is all located the installation section just follows the circumference of installation section is arranged.

14. The electromagnetic suspension of a vehicle according to claim 13, wherein the outer peripheral surface of the mounting section has a plurality of mounting surfaces arranged in a circumferential direction of the mounting section, the mounting surfaces being planar, the number of the mounting surfaces being the same as and in one-to-one correspondence with the number of the movers, the mover being mounted and fixed to the corresponding mounting surfaces.

15. The electromagnetic suspension of claim 14, wherein the number of movers is three, the number of mounting surfaces is three, and the cross section of the mounting section is triangular.

16. The electromagnetic suspension of a vehicle of claim 13, further comprising: the guide rod extends along the upper and lower direction, the installation section is formed with the guide slot that extends along the upper and lower direction, the one end of guide rod with stator module links to each other and the other end is the free end, the other end of guide rod is located in the guide slot.

17. The electromagnetic suspension of any one of claims 1 to 16, wherein the elastic unit includes a spring that is sleeved on an outer peripheral side of the linear motor unit, an upper end of the spring is connected to the stator assembly, and a lower end of the spring is connected to the mover assembly.

18. The electromagnetic suspension of a vehicle of claim 17, further comprising: the upper support is arranged at the upper end of the stator assembly, the lower support is arranged at the lower end of the rotor assembly, the upper end of the spring is connected with the upper support, and the lower end of the spring is connected with the lower support.

19. A vehicle, characterized by comprising: the electromagnetic suspension according to any one of claims 1-18.