Stator, linear motor, electromagnetic shock absorber, suspension assembly and vehicle

Abstract

The present disclosure relates to a stator, a linear motor, an electromagnetic shock absorber, a suspension assembly and a vehicle. The stator includes a first shaft section and a second shaft section connected to the first shaft section. The outer periphery of the first shaft section is provided with multiple layers of winding grooves along the axial direction. The groove bottom of the winding groove is provided with a wiring channel connected to the winding groove, and the wiring channel extends to the outer periphery of the second shaft section. With such a design, both ends of the coil winding wound in the winding groove can be routed in the wiring channel at the groove bottom, without the need to provide a notch for the wiring ends at a position close to the notch of the winding groove, so that the entire space of the winding groove can be used for winding, thereby improving the slot fill rate of the winding groove. When the stator is used for a linear motor, a greater electromagnetic force of the linear motor can be achieved under the same volume, thereby improving the motor performance.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle vibration reduction, and in particular, to a stator, a linear motor, an electromagnetic vibration absorber, a suspension assembly and a vehicle. Background Art

[0002] A linear motor is an electric motor that directly generates linear motion through electromagnetic force. A linear drive motor usually includes a stator and a mover. The stator includes a winding coil wound on an iron core shaft. The winding coil is electrically connected to a power source and can generate a magnetic field when powered on to generate magnetic force with the mover, thereby driving the mover to move in a straight line. Linear motors have many usage scenarios. For example, the electromagnetic suspension currently on the market can use linear motors to achieve active vibration reduction.

[0003] In the related art, when a wire is wound around an iron core shaft to obtain a winding coil, the two ends of the wire are usually located outside the coil winding, and the two ends of the wire are routed along the axial direction of the iron core shaft outside the winding coil. In this way, the winding axially routed outside the coil will occupy radial space (approximately the diameter of the winding wire bundle), which restricts the improvement of the winding full slot rate of the motor. Summary of the invention

[0004] An object of the present disclosure is to provide a stator, a linear motor, an electromagnetic vibration absorber, a suspension assembly and a vehicle to at least partially solve the problems existing in the related art.

[0005] In order to achieve the above-mentioned purpose, the present disclosure provides a stator, which includes a first shaft segment and a second shaft segment connected to the first shaft segment, wherein the outer periphery of the first shaft segment is provided with multiple layers of winding grooves along the axial direction, and the bottom of the winding groove is provided with a wiring channel connected to the winding groove, and the wiring channel extends to the outer periphery of the second shaft segment.

[0006] Optionally, the outer side wall of the second shaft segment is provided with a first wire passing groove extending along the wall surface, and the first wire passing groove is connected to the wiring channel.

[0007] Optionally, there are multiple wiring channels and multiple first wire grooves, and each of the first wire grooves corresponds to and is connected to one wiring channel.

[0008] Optionally, the first wire passing groove and the wiring channel extend axially respectively, and the corresponding first wire passing groove and the wiring channel are aligned.

[0009] Optionally, a loop groove is provided on the groove wall of the winding groove, one end of the loop groove extends to the groove opening of the winding groove, and the other end extends to the wiring channel.

[0010] Optionally, the first shaft section includes a core shaft and a sleeve shaft sleeved on the outside of the core shaft, and the wiring channel is located between the core shaft and the sleeve shaft.

[0011] Optionally, one of the inner side wall of the sleeve shaft and the outer side wall of the core shaft is provided with a second wire passing groove, and the wiring channel includes the second wire passing groove.

[0012] Optionally, a third wire passing groove is formed on the other of the inner side wall of the sleeve shaft and the outer side wall of the core shaft, and the third wire passing groove corresponds to the position of the second wire passing groove to enclose and form the wiring channel.

[0013] Optionally, the core shaft and the second shaft segment are integrally formed.

[0014] Optionally, the diameter of the core shaft is greater than the diameter of the second shaft segment.

[0015] Optionally, the sleeve shaft includes a plurality of stacked annular toothed discs, the central portion of each toothed disc forming an axially protruding support ring, and two adjacent toothed discs are supported by the support ring to form the winding groove between the two adjacent toothed discs, and the support ring is provided with a wire passing hole connecting the winding groove and the wiring channel.

[0016] According to a second aspect of the present disclosure, a linear motor is provided, comprising a mover and the above-mentioned stator, wherein the mover is movable in an axial direction relative to the stator.

[0017] Optionally, the mover includes a shell and a magnetic steel arranged on an inner wall of the shell, wherein the first shaft segment is arranged inside the shell, and one end of the second shaft segment extends out of the shell.

[0018] Optionally, the mover further comprises a guide column which is arranged in the housing and extends along the axial direction, and the first shaft section is provided with a guide groove for the guide column to extend into.

[0019] According to a third aspect of the present disclosure, there is provided an electromagnetic vibration absorber, comprising the above-mentioned linear motor.

[0020] According to a fourth aspect of the present disclosure, there is provided a suspension assembly, comprising a suspension body and the above-mentioned electromagnetic shock absorber, wherein the mover is connected to the suspension body, and the stator is used to be connected to a vehicle body.

[0021] According to a fifth aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned suspension assembly.

[0022] Through the above technical solution, the two wire ends of the coil winding wound in the winding slot can be routed in the routing channel at the bottom of the slot (passing from the bottom of one winding slot to the bottom of another winding slot), and there is no need to open a gap near the slot mouth of the winding slot for the wire ends to route, so that the entire space of the winding slot can be used to accommodate the winding coil, thereby improving the slot fill rate of the winding slot. When the stator is used for a linear motor, a greater electromagnetic force of the linear motor can be achieved under the same volume, thereby improving the motor performance.

[0023] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the routing method of the winding coil in the prior art;

[0026] Figure 2 is a front cross-sectional view of a linear motor exemplarily shown according to the present disclosure;

[0027] Figure 3 yes Figure 2 A magnified view of part A;

[0028] Figure 4 is a schematic diagram of wiring of a winding coil exemplarily shown according to the present disclosure;

[0029] Figure 5 is a top view of a toothed disc exemplarily shown according to the present disclosure;

[0030] Figure 6 is a schematic diagram of a first shaft segment and a shaft core exemplarily shown according to the present disclosure;

[0031] Figure 7 It is a schematic diagram of a first shaft segment and a second shaft segment exemplarily shown according to the present disclosure, wherein the first shaft segment and the second shaft segment are integrally formed.

[0032] Description of Reference Numerals

[0033] 100-stator; 101-shaft shoulder; 110-first shaft section; 111-winding coil; 112-winding groove; 113-guide groove; 120-second shaft section; 121-first wire groove; 200-mator; 210-housing; 220-magnetic steel; 230-guide column; 300-wiring channel; 310-second wire groove; 320-third wire groove; 400-return groove; 510-core shaft; 520-sleeve shaft; 521-toothed disc; 522-support ring; 523-wire hole. DETAILED DESCRIPTION

[0034] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0035] In the present disclosure, unless otherwise stated, the directional words used, such as "inside" and "outside", may be defined based on the direction in which the relevant components are actually used, or may be based on the structure itself. For example: the "periphery" of the first shaft segment is axially provided with multiple layers of winding grooves, which means that the winding grooves are arranged near the outer surface of the first shaft segment; the "outer" side wall of the second shaft segment is provided with a first wire groove extending along the wall surface, which means that the first wire groove is arranged on the outer surface of the second shaft segment; the mover includes a shell and a magnet arranged on the "inner wall" of the shell, which means that the magnet is on the inner surface of the shell.

[0036] In addition, in the present disclosure, the terms "first", "second", etc. are used to distinguish one element from another element, and have no order or importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0037] Reference Figure 2-Figure 4According to the first aspect of the present disclosure, a stator is provided. The stator 100 includes a first shaft segment 110 and a second shaft segment 120 connected to the first shaft segment 110. Specifically, the stator 100 can be assembled by welding or other mechanical methods, or the first shaft segment 110 and the second shaft segment 120 can also be integrally formed. The outer periphery of the first shaft segment 110 is provided with multiple layers of winding grooves 112 along the axial direction, and the groove bottom of the winding groove 112 is provided with a wiring channel 300 connected to the winding groove 112. The wiring channel 300 extends to the outer periphery of the second shaft segment 120, and specifically can be directly extended to the outer periphery of the second shaft segment 120. Alternatively, when the diameter of the first shaft segment 110 is greater than the diameter of the second shaft segment 120, the wiring channel 300 can also first extend to the shaft shoulder 101 between the first shaft segment 110 and the second shaft segment 120, and the shaft shoulder 101 refers to the end face of the first shaft segment 110 connected to the second shaft segment 120, and then extends to the outer periphery of the second shaft segment 120. The present disclosure does not limit the number of the wiring channels 300 , which may be one, three, etc., and may be adaptively designed according to the type of the winding coil 111 wound in the winding slot 112 .

[0038] The present disclosure does not limit the formation method of the winding groove 112. Figure 7 In the illustrated embodiment, the first shaft segment 110 may be constructed as a hollow cylinder, and the winding groove 112 may be formed by turning directly on the outer wall surface of the first shaft segment 110 by a turning tool. Figure 2 In the illustrated embodiment, the winding groove 112 may also be formed by a reserved accommodation space between two adjacent toothed discs 521 , which will be described in detail below.

[0039] The above-mentioned "bottom position" of the winding groove 112 corresponds to the inner position of each layer of winding coil 111, and the present disclosure does not limit its specific setting position. For example, the wiring channel 300 can also be directly opened on the inner side of the groove bottom of the winding groove 112 (that is, the side of the groove bottom of the winding groove 112 facing the winding coil), as long as it does not occupy the storage space of the winding groove 112, so that the winding groove 112 and the wiring channel 300 can be directly connected. In addition, Figure 3 In the illustrated embodiment, the wiring channel 300 can be opened on the outer side of the bottom of the winding groove 112 (i.e., the side of the bottom of the winding groove 112 facing away from the winding coil 111). In this case, it is necessary to additionally set up a wire hole 523 described below to connect the winding groove 112 and the wiring channel 300.

[0040] The present disclosure does not limit the winding coil 111 wound in the winding slot 112. For example, it may include three groups of phase lines, namely phase A, phase B and phase C. The connection method between the three groups of phase lines can be star-shaped connection, or it can also be Y-shaped connection, etc. Since the connection method of the winding coil 111 is well known to those skilled in the art, it is not explained too much here. In the embodiment of the present disclosure, only one winding coil 111 can be provided in each winding slot 112, such as phase A, phase B or phase C. In addition, in some other embodiments, at least two winding coils 111 can also be provided in each winding slot 112, such as phase A+phase B, phase B+phase C, phase A+phase B+phase C, etc. It should be noted that multiple winding coils 111 belonging to the same phase can be wound by a wire, that is, after the winding is completed in one winding slot 112, its wire head enters another winding slot 112 through the wiring channel 300 to continue winding, and so on and so forth until the wiring is completed. In addition, in some other embodiments, multiple winding coils 111 of the same phase may also be independent of each other, that is, they are respectively wound by their own wires and are located in their own corresponding winding grooves 112. In this case, a group of wire ends of two adjacent winding coils 111 need to be electrically connected in the wiring channel 300 to form a series relationship.

[0041] By using the above technical solution, the two wire ends of the coil winding 111 wound in the winding slot 112 can be routed in the routing channel 300 at the bottom of the slot (from the bottom of one winding slot 112 to the bottom of another winding slot 112), and there is no need to open a gap near the slot of the winding slot 112 for the wire ends to route. As a result, the entire space of the winding slot 112 can be used to accommodate the winding coil 111, thereby improving the slot fill rate of the winding slot 112. When the stator is used for a linear motor, a greater electromagnetic force of the linear motor can be achieved in the same volume, thereby improving the motor performance. In order to more intuitively explain that arranging the wire ends of the winding coil 111 on the outside for routing will occupy the accommodation space of the winding slot 112, refer to Figure 1 In this embodiment, the outer wiring ends will occupy the radial space of the winding groove 112, resulting in a waste of space in the winding groove 112. Figure 1 The 700 part is wasted space.

[0042] Reference Figure 2 , Figure 6 and Figure 7In the embodiment of the present disclosure, the outer wall of the second shaft section 120 may be provided with a first wire groove 121 extending along the wall surface, and the first wire groove 121 may be connected to the wiring channel 300, so that the wire ends of the winding coil 111 can extend out of the wiring channel 300 and continue to be routed through the first wire groove 121. With such a design, the wire ends of the winding coil 111 can directly transition to the first wire groove 121 on the outer side of the second shaft section 120 after extending out of the wiring channel 300. This outer side arrangement is convenient for fixing operations such as gluing, injection molding, and clamping, which is safe and convenient.

[0043] The present disclosure does not limit the number of the wiring channel 300 and the first wire trough 121. For example, in some embodiments, the wiring channel 300 and the first wire trough 121 can be multiple, and each first wire trough 121 corresponds to and communicates with one wiring channel 300. In addition, in some other embodiments, the number of the wiring channel 300 and the first wire trough 121 can be one.

[0044] In some embodiments, the first wire groove 121 and the wiring channel 300 can extend axially respectively, and the corresponding first wire groove 121 and the wiring channel 300 are aligned. "Aligned" here means that the first wire groove 121 and the wiring channel 300 have the same circumferential position and radial position in their respective corresponding axial segments, that is, the wire end of the winding coil 111 does not need to change its wiring direction after extending from the wiring channel 300, and can directly extend into the first wire groove 121. With such a design, there is no need to forcibly change the natural direction of the wire making the winding coil 111, which effectively improves the durability of the wire.

[0045] Since the wire is wound from the inside to the outside in the winding groove 112 to obtain the winding coil 111, after the winding is completed, one end of the wire end will be located outside the winding coil 111. In order to facilitate extending it from the outside to the inside into the wiring channel 300, refer to Figure 2-Figure 3 In the embodiment of the present disclosure, the groove wall of the winding groove 112 may be provided with a return groove 400, one end of the return groove 400 extends to the notch of the winding groove 112, and the other end extends to the wiring channel 300. With such a design, after winding each winding groove 112, the wire end located on the outside can extend into the wiring channel 300 through the return groove 400, which is simple to operate, and because the return groove 400 is provided on the groove wall, it does not need to occupy the internal space of the winding groove 112, which can further improve the full slot rate of the winding groove 112, thereby improving the motor performance.

[0046] The present disclosure does not limit the specific opening position of the return groove 400 , and the return groove 400 may be opened at the upper groove wall of the winding groove 112 , or may also be opened at the lower groove wall of the winding groove 112 .

[0047] Reference Figure 3In the embodiment of the present disclosure, the first shaft section 110 may include a core shaft 510 and a sleeve shaft 520 sleeved on the outside of the core shaft 510, and the wiring channel 300 may be located between the core shaft 510 and the sleeve shaft 520. With such a design, the wiring channel 300 may be formed before the core shaft 510 and the sleeve shaft 520 are assembled, thereby avoiding the difficulty of opening the wiring channel 300 after the two are assembled. Figure 7 In the illustrated embodiment, the first shaft section 110 may also only include a hollow cylindrical tube, and a plurality of winding grooves 112 may be provided on the outer side of the cylindrical tube, and the hollow position of the cylindrical tube may be directly used for the wiring channel 300. In this case, the bottom of each winding groove 112 needs to be provided with a wire hole 523 connecting the winding groove 112 and the hollow position, and the groove wall of the winding groove 112 needs to be provided with a return groove 400 (not shown in the figure) connecting the hollow position.

[0048] Furthermore, the present disclosure does not limit the specific formation method of the routing channel 300. Figure 4 In the illustrated embodiment, one of the inner side wall of the sleeve shaft 520 and the outer side wall of the core shaft 510 may be provided with a second wire groove 310, and the wiring channel 300 may include the second wire groove 310. With such a design, the wire ends of the winding coil 111 may be routed directly through the second wire groove 310 without occupying the accommodation space of the winding groove 112.

[0049] In addition, in some other embodiments, the other of the inner side wall of the sleeve shaft 520 and the outer side wall of the core shaft 510 may be provided with a third wire groove 320, and the third wire groove 320 may correspond to the second wire groove 310 to enclose and form a wiring channel 300. The wiring channel 300 formed by enclosing the third wire groove 320 and the second wire groove 310 may be suitable for wires with larger diameters.

[0050] Reference Figure 6 In some embodiments, the mandrel 510 can be integrally formed with the second shaft segment 120. Integral forming can reduce assembly steps and reduce product defect rate. In addition, in some other embodiments, the mandrel 510 and the second shaft segment 120 can also be welded or assembled by other mechanical means.

[0051] Reference Figure 2-Figure 4 In some embodiments of the present disclosure, the sleeve shaft 520 may include a plurality of stacked annular toothed discs 521, and the central portion of each toothed disc 521 may form an axially protruding support ring 522, and two adjacent toothed discs 521 may be supported by the support ring 522 to form a winding groove 112 between the two adjacent toothed discs 521. It should be noted that, referring to Figure 4, the support rings 522 of the two toothed discs 521 located at the upper and lower ends of the first shaft section 110 may only protrude toward the direction of the toothed disc 521 adjacent thereto, and the support rings 522 of the remaining toothed discs 521 may protrude toward both sides of the toothed disc 521. In addition, in some other embodiments, the toothed disc 521 located at the upper end may not have a support ring 522, and the support rings 522 of the remaining toothed discs 521 all protrude toward the upper side, and the present disclosure does not limit the specific form of the support ring 522. It should be noted that when the wiring channel 300 is located on the side of the support ring 522 close to the core shaft 510, the support ring 522 needs to be provided with a wire hole 523 connecting the winding groove 112 and the wiring channel 300. When the wiring channel 300 is located on the side of the support ring 522 away from the core shaft 510, it is not necessary to provide a wire hole 523.

[0052] It should be noted that in Figure 3 Only one wire hole 523, one winding groove 112 and one return groove 400 are shown, which is only an exemplary display. In fact, a winding groove 112 is formed between each two adjacent toothed discs 521, and the disk surface of each toothed disc 521 is provided with a return groove 400 (the disk surface corresponds to the groove wall mentioned above), and each support ring 522 is provided with a wire hole 523 to allow the wire ends located on the inner side of the winding coil 111 to enter the wiring channel 300 during winding. After the winding of each winding groove 112 is completed, the wire ends located on the outer side can extend into the wiring channel 300 through the corresponding return groove 400.

[0053] According to a second aspect of the present disclosure, a linear motor is provided, comprising a mover 200 and the above-mentioned stator 100, wherein the mover 200 can move along the axial direction relative to the stator 100. Since the linear motor has all the beneficial effects of the above-mentioned stator, they are not described in detail here.

[0054] Reference Figure 2 In the embodiment of the present disclosure, the mover 200 may include a housing 210 and a magnetic steel 220 disposed on the inner wall of the housing 210. The first shaft segment 110 may be disposed inside the housing 210, and one end of the second shaft segment 120 may extend out of the housing 210. With such a design, when the winding coil 111 is energized, a magnetic field may be generated, which in turn may generate a magnetic force with the magnetic steel 220 on the inner wall of the housing 210, thereby driving the linear motor to move.

[0055] In order to enable the mover 200 to move in a straight line relative to the stator 100, refer to Figure 2In the embodiment of the present disclosure, the mover 200 may further include a guide post 230 extending in the axial direction and arranged in the housing 210, and the first shaft section 110 may be provided with a guide groove 113 for the guide post 230 to extend into. In the embodiment where the first shaft section 110 includes the above-mentioned mandrel 510, the guide groove 113 may be provided inside the mandrel 510. In addition, Figure 7 In the illustrated embodiment, the hollow portion can be directly used as the guide groove 113. In order to avoid interference and friction between the guide column 230 extending into the guide groove 113 and the portion of the winding coil 111 located in the hollow position, in this case, the inner wall surface of the hollow position of the first shaft segment 110 can be provided with a groove for routing the wire ends of the winding coil 111. Arranging the wire in the groove can avoid interference and friction with the guide column 230.

[0056] According to a third aspect of the present disclosure, an electromagnetic vibration absorber is provided, comprising the above-mentioned linear motor. Since the electromagnetic vibration absorber has all the beneficial effects of the above-mentioned linear motor, they are not described in detail here.

[0057] According to a fourth aspect of the present disclosure, a suspension assembly is provided, including a suspension body and the above-mentioned electromagnetic shock absorber, wherein the mover 200 is connected to the suspension body, and the stator 100 is used to be connected to the body of the vehicle. Since the suspension assembly has all the beneficial effects of the above-mentioned electromagnetic shock absorber, they are not repeated here.

[0058] According to a fifth aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned suspension assembly. Since the vehicle has all the beneficial effects of the above-mentioned suspension assembly, they are not described in detail here.

[0059] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0060] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0061] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A stator, characterized in that: The stator comprises a first shaft segment and a second shaft segment connected to the first shaft segment, The outer circumference of the first shaft segment is provided with multiple layers of winding grooves along the axial direction, and the bottom of the winding groove is provided with a wiring channel connected with the winding groove, and the wiring channel extends to the outer circumference of the second shaft segment. A return groove is provided on the groove wall of the winding groove, one end of the return groove extends to the groove opening of the winding groove, and the other end extends to the wiring channel.

2. The stator according to claim 1, characterized in that: The outer side wall of the second shaft section is provided with a first wire passing groove extending along the wall surface, and the first wire passing groove is communicated with the wiring channel.

3. The stator according to claim 2, characterized in that: There are multiple wiring channels and multiple first wire-passing grooves, and each of the first wire-passing grooves corresponds to and is connected to one wiring channel.

4. The stator according to claim 3, characterized in that: The first wire passing groove and the wiring channel extend axially respectively, and the corresponding first wire passing groove and the wiring channel are aligned.

5. The stator according to any one of claims 1 to 4, characterized in that: The first shaft section includes a core shaft and a sleeve shaft sleeved on the outer side of the core shaft, and the wiring channel is located between the core shaft and the sleeve shaft.

6. The stator according to claim 5, characterized in that: One of the inner side wall of the sleeve shaft and the outer side wall of the core shaft is provided with a second wire passing groove, and the wiring channel includes the second wire passing groove.

7. The stator according to claim 6, characterized in that A third wire passing groove is formed on the other of the inner side wall of the sleeve shaft and the outer side wall of the core shaft. The third wire passing groove corresponds to the second wire passing groove in position to enclose and form the wiring channel.

8. The stator according to claim 5, characterized in that: The core shaft and the second shaft segment are integrally formed.

9. The stator according to claim 6, characterized in that: The core shaft has a diameter greater than a diameter of the second shaft segment.

10. The stator according to claim 5, characterized in that The sleeve shaft includes a plurality of stacked annular toothed discs, the central portion of each toothed disc forming an axially protruding support ring, and two adjacent toothed discs are supported by the support ring to form the winding groove between the two adjacent toothed discs, and the support ring is provided with a wire passing hole connecting the winding groove and the wiring channel.

11. A linear motor, characterized in that: The invention comprises a mover and the stator according to any one of claims 1 to 10, wherein the mover is movable in an axial direction relative to the stator.

12. The linear motor according to claim 11, characterized in that: The mover comprises a shell and a magnetic steel arranged on the inner wall of the shell, wherein the first shaft segment is arranged inside the shell, and one end of the second shaft segment extends out of the shell.

13. The linear motor according to claim 12, characterized in that: The mover further comprises a guide column which is arranged in the housing and extends in the axial direction, and the first shaft section is provided with a guide groove for the guide column to extend into.

14. An electromagnetic vibration absorber, characterized in that: A linear motor comprising any one of claims 11-13.

15. A suspension assembly, characterized in that: The invention comprises a suspension body and the electromagnetic vibration absorber as claimed in claim 14, wherein the mover is connected to the suspension body, and the stator is used to be connected to a vehicle body.

16. A vehicle, characterized in that: Includes the suspension assembly as described in claim 15.

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