Central rod, stator, electromagnetic damper, and vehicle

Abstract

A central rod, a stator, an electromagnetic damper, and a vehicle. The central rod is provided with an anti-rotation groove, which is adapted to be matched to a rotor in such a way as to limit rotation of the rotor relative to the central rod; and the outer surface of the peripheral wall of the central rod is further provided with a sensor mounting area for mounting of a sensor.

Description

Center rod, stator, electromagnetic vibration absorber and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application with application date of December 29, 2023, application number 202311867740.0, and patent application name "Center rod, stator, linear motor, electromagnetic shock absorber, suspension system and vehicle", all contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of motors, and in particular to a center rod, a stator, an electromagnetic vibration absorber and a vehicle. Background Art

[0004] In the related art, the electromagnetic vibration absorber includes a housing, a stator and a mover, and the stator and the mover are arranged in the housing. In the existing art, it is impossible to effectively detect the positional relationship between the stator and the mover, which affects the working performance of the electromagnetic vibration absorber. Summary of the Invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a central rod that can be used to fix the sensor, which is conducive to improving the detection accuracy of the sensor.

[0006] This application also proposes a stator.

[0007] The present application also proposes an electromagnetic vibration absorber.

[0008] The present application also proposes a vehicle.

[0009] According to the center rod of the embodiment of the present application, an anti-rotation groove is provided on the center rod, and the anti-rotation groove is suitable for cooperating with the mover to limit the rotation of the mover relative to the center rod; a sensor installation area for installing a sensor is also provided on the outer surface of the rod peripheral wall of the center rod.

[0010] According to the center rod of the embodiment of the present application, the center rod can be applied to the electromagnetic shock absorber. By setting an anti-rotation groove and a sensor installation area on the center rod, the rotation of the mover relative to the center rod can be reduced, thereby improving the reliability of the operation of the electromagnetic shock absorber. The sensor can also be fixed to avoid setting the sensor on the mover and affecting its detection accuracy.

[0011] According to some embodiments of the present application, the interior of the center rod has a hollow cavity, and a center rod outlet through hole communicating with the hollow cavity is opened on the circumferential wall of the center rod.

[0012] According to some embodiments of the present application, the sensor installation area includes at least a sensor positioning plane, and a sensor fixing structure is provided on the sensor positioning plane.

[0013] According to some embodiments of the present application, the central rod includes a first rod segment and a second rod segment, the sensor installation area is located on the first rod segment, and the second rod segment is provided with a magnetic component installation area.

[0014] According to some embodiments of the present application, in the axial direction of the center rod, the center rod wire outlet through hole is located between the sensor installation area and the magnetic component installation area.

[0015] According to some embodiments of the present application, a cooling chamber is defined inside the central rod, wherein the cooling chamber is adapted to accommodate a cooling medium, and the cooling chamber extends from the second rod segment into the first rod segment.

[0016] According to some embodiments of the present application, the cooling chamber is a closed chamber; or, an end of the first rod segment away from the second rod segment is provided with a medium filling port connected to the cooling chamber.

[0017] According to some embodiments of the present application, the anti-rotation groove is provided on the first rod segment.

[0018] According to some embodiments of the present application, a positioning groove is provided on the second rod segment, and the positioning groove is suitable for cooperating with a magnetic member installed on the magnetic member installation area to limit the rotation of the magnetic member relative to the center rod.

[0019] According to some embodiments of the present application, the center rod further includes a rod ring structure, the outer diameter of the rod ring structure is larger than the outer diameter of the second rod segment, the rod ring structure is used to stop the magnetic part in the axial direction of the center rod, and the center rod wire outlet hole is opened on the side of the rod ring structure away from the second rod segment.

[0020] According to some embodiments of the present application, a first threaded segment is provided at one end of the first rod segment away from the second rod segment, and the first threaded segment is used to be threadedly connected to a fastening nut; a second threaded segment is provided at one end of the second rod segment away from the first rod segment, and the second threaded segment is used to be threadedly connected to a limiting nut; and the magnetic component installation area is located between the rod ring structure and the second threaded segment.

[0021] The stator according to an embodiment of the present application includes a position sensor and the center rod of the above embodiment, and the position sensor is installed in the sensor installation area.

[0022] According to the stator of the embodiment of the present application, by setting the above-mentioned center rod, the center rod can be applied to the electromagnetic vibration absorber. By setting the sensor installation area on the center rod, it can be used to fix the sensor, avoiding setting the sensor on the mover and affecting its detection accuracy.

[0023] According to some embodiments of the present application, the stator further includes a cable, which is passed through the wire outlet hole of the center rod, and the cable is partially located in the hollow cavity inside the center rod and partially located outside the center rod; a magnetic part, which is sleeved on the magnetic part installation area of ​​the center rod, and the cable is partially arranged on the periphery of the magnetic part, and the magnetic part includes a winding wire head, which is led out to the periphery of the magnetic part and is suitable for connecting the cable.

[0024] According to some embodiments of the present application, the center rod includes a first rod segment and a second rod segment, the sensor installation area is located on the first rod segment, the magnetic component installation area is located on the second rod segment, the hollow cavity includes a wiring cavity located inside the first rod segment, the center rod wire outlet through hole is connected to the wiring cavity, and the stator also includes a wire outlet device, which is arranged in the wiring cavity to fix the cable.

[0025] According to some embodiments of the present application, one axial end of the wire outlet device has a wire hole inlet, and the other axial end of the wire outlet device has a wire hole outlet, the cable is suitable for passing through the wire hole inlet and the wire hole outlet, there are multiple wire hole outlets, and the multiple wire hole outlets are spaced apart along the axis of the wire outlet device, and the wire hole outlets are suitable for aligning with the corresponding wire outlet through hole of the center rod.

[0026] According to some embodiments of the present application, the wire hole inlet corresponds to the wire hole outlet one-to-one, and a cable channel for fixing the corresponding cable is formed between the wire hole inlet and the corresponding wire hole outlet, and the diameter of the cable channel differs from the outer diameter of the fixed cable by no more than 5 mm.

[0027] According to some embodiments of the present application, the magnetic part includes an iron core, which includes a plurality of winding slots distributed along the axial direction of the iron core; a winding, which is wound in the winding slots, and the outer end wire heads of the winding are the winding wire heads, which are connected to the cable; the cable includes a phase line portion and a distribution portion that are connected to each other, the phase line portion is located in the hollow cavity and passes through the center rod outlet hole, the winding has a plurality of winding wire heads of the same phase, and the plurality of winding wire heads of the same phase are connected in series through the distribution portion.

[0028] According to some embodiments of the present application, there are multiple windings of the same phase, the wiring portion is multi-section, and the winding ends of adjacent windings of the same phase are connected in series through corresponding wiring portions.

[0029] According to some embodiments of the present application, the iron core is provided with a plurality of wire outlet slots, and the plurality of wire outlet slots are arranged at intervals along the circumference of the iron core. At least a portion of the wiring part is suitable for being embedded in the wire outlet slots. The bottom end portion of the iron core is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are arranged at intervals to form a wire entry opening. The wiring part is suitable for being connected to the wiring parts of other phases through the wire outlet slots and the wire entry openings at corresponding positions.

[0030] According to some embodiments of the present application, the stator further includes a limiting pad, which is sleeved on the center rod, and the limiting pad cooperates with the center rod wire outlet through hole to fix the cable, the center rod further includes a first rod segment, a second rod segment and a rod ring structure, the first rod segment and the second rod segment are separated by the rod ring structure, a part of the center rod wire outlet through hole is opened on the first rod segment, and the other part is opened on the rod ring structure, the limiting pad is sleeved on the first rod segment, and the limiting pad and the center rod wire outlet through hole surround a wiring limiting hole, and the cable is suitable for passing through the wiring limiting hole.

[0031] According to some embodiments of the present application, one end of the cable away from the magnetic component passes through the outside of the central rod and is connected to a plug connector.

[0032] An electromagnetic vibration absorber according to an embodiment of the present application includes a mover and the stator of the above embodiment, the mover having a mover cavity, the stator being disposed in the mover cavity, and the mover being capable of axial movement relative to the stator.

[0033] According to the electromagnetic vibration absorber of the embodiment of the present application, by setting the above-mentioned stator, the center rod can be applied to the electromagnetic vibration absorber. By setting the sensor installation area on the center rod, it can be used to fix the sensor, avoiding setting the sensor on the mover and affecting its detection accuracy.

[0034] According to some embodiments of the present application, the mover includes a shell; a mover magnet, which is installed on the inner wall of the shell, and the inner side of the mover magnet forms the mover cavity, and the mover magnet is sleeved on the outer periphery of the magnetic part installed on the center rod; a guide column, which is connected to the shell and is also used to connect with the lower arm of the vehicle, and the hollow cavity inside the center rod includes a guide cavity, and at least part of the guide column is suitable for extending into the guide cavity and can move along the axial direction of the center rod.

[0035] According to some embodiments of the present application, the electromagnetic vibration absorber also includes a first sliding bearing and a second sliding bearing, the shell has a shell hole, the center rod passes through the shell hole to partially extend out of the shell, the first sliding bearing is arranged between the shell hole and the outer peripheral surface of the center rod, and the second sliding bearing is arranged between the outer peripheral surface of the guide column and the cavity wall of the hollow cavity.

[0036] According to some embodiments of the present application, the mover further includes a buffer pad, which is sleeved on the guide column and located outside the end of the center rod.

[0037] According to some embodiments of the present application, a positioning hole is provided on the shell, and a positioning pin is suitable for passing through the positioning hole and cooperating with an anti-rotation groove extending axially on the center rod to limit the rotation of the shell relative to the center rod.

[0038] According to some embodiments of the present application, the electromagnetic shock absorber also includes a tower top, a spring is provided between the tower top and the shell, and the tower top includes: an upper support member, the upper support member is suitable for being connected to the vehicle body, the center rod is suitable for passing through the upper support member, the center rod has an end shoulder, and the upper support member stops at the end shoulder; a fastening nut, the fastening nut is located on the side of the upper support member away from the mover, and the fastening nut is suitable for being threaded with the first threaded section on the center rod, and the upper support member is clamped between the fastening nut and the end shoulder; a cooler, the cooler is fixed on the center rod, and the cooling chamber inside the center rod is suitable for heat exchange with the cooler.

[0039] According to an embodiment of the present application, the vehicle includes a suspension system, and the suspension system includes the electromagnetic shock absorber of the above-mentioned embodiment. By setting the above-mentioned electromagnetic shock absorber, the center rod can be applied to the electromagnetic shock absorber. By setting a sensor mounting area on the center rod, it can be used to fix the sensor, avoiding setting the sensor on the mover and affecting its detection accuracy.

[0040] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0042] FIG1 is a cross-sectional view of an electromagnetic vibration absorber according to an embodiment of the present application;

[0043] FIG2 is an enlarged view of point A according to FIG1 ;

[0044] FIG3 is an enlarged view of FIG1 at point B;

[0045] FIG4 is a cross-sectional view of a center rod according to an embodiment of the present application;

[0046] FIG5 is a perspective view of a center rod according to an embodiment of the present application;

[0047] FIG6 is a partial cross-sectional view of a center rod according to an embodiment of the present application;

[0048] FIG7 is a partial cross-sectional enlarged view of the center rod according to an embodiment of the present application;

[0049] FIG8 is a schematic diagram of the assembly of the center rod and the magnetic member according to an embodiment of the present application;

[0050] FIG9 is a schematic diagram of the assembly of the center rod and the housing according to an embodiment of the present application;

[0051] FIG10 is a perspective view of a wire outlet device according to an embodiment of the present application;

[0052] FIG11 is a schematic diagram of a suspension system according to an embodiment of the present application;

[0053] FIG12 is a schematic diagram of a vehicle according to an embodiment of the present application.

[0054] : Figures 10000, suspension system 2000, electromagnetic shock absorber 1000, stator 100, mover 600, tower top 700, sensor 800; center rod 1, first rod segment 11, first outlet half hole 111, anti-rotation groove 112, end shoulder 113, second rod segment 12, magnetic component installation area 122, wiring cavity 13, rod peripheral wall 14, sensor installation area 141, sensor positioning plane 1411, sensor fixing structure 1412, cooling chamber 142, medium filling port 1421, rod ring structure 15, second outlet half hole 152, center rod outlet through hole 16, first threaded segment 171, second threaded segment 172, limit nut 18, guide cavity 19; cable 2, plug connector 21, wiring part 22, phase line part 23, magnetic component 3, winding 31, iron core 32, reinforcement rib 321, Wire harness fixing groove 3211, wire inlet opening 3212, wire outlet slot 322, wire outlet device 4, cable channel 41, limit pad 5; housing 601, positioning hole 6011, housing hole 6012, mover magnet 602, fork arm 603, fork arm body 6031, guide column 6032, first sliding bearing 6041, second sliding bearing 6042, buffer pad 605, dust cover 606, spring 607, cooler 608; upper support 701, fastening nut 702, rotation limiting structure 8, rotation limiting groove 82, first rotation limiting groove 821, positioning groove 822, rotation limiting pin 823. DETAILED DESCRIPTION

[0055] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0056] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0057] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0058] The following describes a center pole 1 , a stator 100 , an electromagnetic vibration absorber 1000 , a suspension system 2000 , and a vehicle 10000 according to an embodiment of the present application with reference to FIG. 1 to FIG. 12 .

[0059] According to the central rod 1 of the embodiment of the present application, an anti-rotation groove 112 is provided on the central rod 1. The anti-rotation groove 112 is suitable for cooperating with the mover 600 to limit the rotation of the mover 600 relative to the central rod 1. By providing the anti-rotation groove 112, the rotation of the mover 600 relative to the central rod 1 can be reduced, thereby improving the reliability of the operation of the electromagnetic vibration absorber 1000. A sensor mounting area 141 is also provided on the outer surface of the rod peripheral wall 14 of the central rod 1. The sensor mounting area 141 can be used to install the sensor 800. The rod peripheral wall 14 is an annular solid structure with a certain thickness. The inner side of the rod peripheral wall 14 encloses a hollow cavity.

[0060] That is, the sensor 800 can be mounted on the center rod 1, and the center rod 1 is fixed in position when applied to the electromagnetic vibration absorber 1000, so that the sensor 800 will not move.

[0061] Optionally, the sensor 800 may be a displacement sensor, a velocity sensor, an acceleration sensor, a temperature sensor, etc.

[0062] In related art, the sensor is mounted on the mover, and movement of the mover causes the sensor to move, affecting the sensor's detection accuracy. Unlike the closest related art, the central rod 1 of this application can be applied to the stator 100 of the electromagnetic vibration absorber 1000. When the sensor 800 is mounted to the sensor mounting area 141 of the central rod 1, the position of the sensor 800 is fixed. The central rod 1 is also provided with an anti-rotation groove 112, which can reduce the probability of the mover 600 rotating relative to the central rod 1, thereby improving the detection accuracy of the sensor 800.

[0063] In some optional embodiments, the sensor 800 installed in the sensor installation area 141 does not include a signal output line. The sensor 800 includes a bracket and a magnet. The magnet is installed on the bracket, and the bracket is installed on the sensor installation area 141.

[0064] In other optional embodiments, the sensor 800 may include a signal output line. For example, when the sensor 800 is a temperature sensor, it has a signal output line. The signal output line can pass through the center rod wire outlet hole 16 and be accommodated in the hollow cavity. The hollow cavity of the center rod 1 can protect the signal output line of the sensor 800. When the mover 600 of the electromagnetic vibration absorber 1000 makes linear motion relative to the center rod 1, since the signal output line of the sensor 800 passes through the center rod wire outlet hole 16 and is accommodated in the hollow cavity, the risk of the signal output line being squeezed or damaged can be reduced.

[0065] According to the center rod 1 of the embodiment of the present application, the center rod 1 can be applied to the electromagnetic vibration absorber 1000. By setting the anti-rotation groove 112 and the sensor installation area 141 on the center rod 1, the rotation of the mover 600 relative to the center rod 1 can be reduced, thereby improving the reliability of the operation of the electromagnetic vibration absorber 1000. The sensor 800 can also be fixed to avoid setting the sensor 800 on the mover 600 and affecting its detection accuracy.

[0066] As shown in Figures 1 to 4, according to the center rod 1 of the embodiment of the present application, the center rod 1 has a hollow cavity inside, and a center rod wire outlet through hole 16 is opened on the rod peripheral wall 14 of the center rod 1, and the center rod wire outlet through hole 16 is connected to the hollow cavity.

[0067] As shown in Figures 4-7, in some embodiments, the sensor mounting area 141 includes at least a sensor positioning plane 1411, on which a sensor fixing structure 1412 is disposed. The sensor positioning plane 1411 allows the sensor 800 to be positioned more stably, improving the stability and reliability of the sensor 800's detection operation. Furthermore, the sensor fixing structure 1412 secures the sensor 800 to the sensor positioning plane 1411, preventing it from falling off and improving the stability and reliability of the connection. When the sensor 800 includes a bracket and a magnet, the bracket can be secured to the sensor positioning plane 1411 via the sensor fixing structure 1412, and the magnet can be adhered to the bracket.

[0068] Optionally, the sensor fixing structure 1412 may be a screw hole, a rivet hole, etc.

[0069] A sensor positioning structure may also be provided on the sensor positioning plane 1411 to position the sensor 800 at an accurate position before fixing the sensor 800. Optionally, the sensor positioning structure may be a positioning hole, a positioning pin, or the like.

[0070] As shown in Figures 4-7 , for example, the center rod 1 has a circular cross-section, the outermost side of the rod peripheral wall 14 is a cylindrical surface, and the sensor positioning plane 1411 is a straight wall surface formed by the outer side of the rod peripheral wall 14 being recessed toward the inner side of the rod peripheral wall 14. Optionally, the sensor positioning plane 1411 is parallel to the axis of the center rod 1.

[0071] As shown in Figures 1-5, in some embodiments, the center pole 1 includes a first pole segment 11 and a second pole segment 12. The sensor mounting area 141 is located on the first pole segment 11, and the second pole segment 12 is provided with a magnetic member mounting area 122. The sensor 800 is mounted on the first pole segment 11 of the center pole 1, and the magnetic member 3 is mounted on the second pole segment 12 of the center pole 1, thereby reducing interference between the sensor 800 and the magnetic member 3.

[0072] As shown in FIG4 , in some embodiments, in the axial direction of the center rod 1, the center rod wire outlet through-hole 16 is located between the sensor mounting area 141 and the magnetic component mounting area 122. In combination with the above embodiments, the first rod segment 11 and the second rod segment 12 are sequentially arranged along the axial direction of the center rod 1, the sensor mounting area 141 is arranged on the first rod segment 11, the magnetic component mounting area 122 is arranged on the second rod segment 12, and the sensor 800 is mounted on the sensor mounting area 141, the magnetic component 3 is mounted on the magnetic component mounting area 122 of the center rod 1, and the center rod wire outlet through-hole 16 is arranged between the sensor mounting area 141 and the magnetic component mounting area 122. In other words, the sensor 800 and the magnetic component 3 are separated in the axial direction of the center rod 1, and the center rod wire outlet through-hole 16 is arranged between the sensor 800 and the magnetic component 3. As a result, the electrical connection line of the magnetic component 3 can be close to the center rod wire outlet through-hole 16, thereby reducing the length of the electrical connection line and saving costs. When the sensor 800 has a signal transmission line, the signal transmission line of the sensor 800 can be close to the center rod outlet hole 16, thereby reducing the length of the signal transmission line and saving costs.

[0073] As shown in Figures 4, 6, and 7, in some embodiments, the center rod 1 has a cooling chamber 142 located between the outer and inner sides of the rod peripheral wall 14. The cooling chamber 142 can accommodate a cooling medium and extends from the second rod segment 12 into the first rod segment 11. The cooling chamber 142 can cool the center rod 1. Because the cooling chamber 142 extends from the second rod segment 12 to the first rod segment 11, the cooling chamber 142 can cool the entire center rod 1. When the center rod 1 is used in an electromagnetic vibration absorber 1000, the cooling chamber 142 can cool the interior of the electromagnetic vibration absorber 1000, thereby improving the reliability and safety of the electromagnetic vibration absorber 1000.

[0074] As shown in Figure 6, optionally, a single-layer cooling structure can be provided between the outer side surface and the inner side surface of the rod peripheral wall 14, that is, in the radial direction of the center rod 1, the interior of the center rod 1 can include multiple cooling chambers 142, and the multiple cooling chambers 142 are dispersedly arranged around the axis of the center rod 1. For example, the multiple cooling chambers 142 can all be located on the same circumference of the center rod 1.

[0075] Optionally, a multi-layer cooling structure can be provided between the outer side and the inner side of the rod peripheral wall 14, and the interior of the central rod 1 can include multiple cooling chambers 142, and the multiple cooling chambers 142 are layered in the radial direction of the central rod 1, thereby facilitating improving the cooling effect.

[0076] As shown in FIG. 5 and FIG. 6 , in some embodiments, the cooling chamber 142 is a closed chamber, which can reduce the probability of the cooling medium of the central rod 1 overflowing outward, thereby improving the safety and reliability of the electromagnetic vibration absorber 1000 .

[0077] As shown in Figures 5 and 6, in some optional embodiments, a medium filling port 1421 is provided at one end of the first rod segment 11 away from the second rod segment 12. The medium filling port 1421 can be connected to the cooling chamber 142. The medium filling port 1421 can pass through the cooling medium, so that the cooling medium in the cooling chamber 142 can exchange heat with the outside world (such as air) and then take away the heat.

[0078] Optionally, the medium filling port 1421 may include multiple ones, one of which may serve as an inlet of the cooling medium to add the cooling medium into the cooling chamber 142; another one of which may serve as an outlet of the cooling medium to allow the cooling medium to flow out to the outside.

[0079] As shown in Figures 1, 5 and 9, in some embodiments, an anti-rotation groove 112 is provided on the first rod segment 11. By providing the anti-rotation groove 112, the rotation of the mover 600 relative to the center rod 1 can be reduced, thereby improving the reliability of the operation of the electromagnetic vibration absorber 1000.

[0080] As shown in Figures 5 and 8, in some embodiments, a positioning groove 822 is provided on the second rod segment 12. The positioning groove 822 can cooperate with the magnetic component 3 installed on the magnetic component installation area 122 to limit the rotation of the magnetic component 3 relative to the center rod 1. By setting the positioning groove 822, the accuracy of the cooperation between the magnetic component 3 and the center rod 1 and the convenience of installation can be improved, thereby improving the reliability of the operation of the electromagnetic vibration absorber 1000.

[0081] As shown in Figures 1, 5, and 9, in some embodiments, an anti-rotation groove 112 extends axially along the center rod 1. The anti-rotation groove 112 extends axially along the first rod segment 11 of the center rod 1 and is formed on the outer side of the rod peripheral wall 14 in the radial direction. By extending the anti-rotation groove 112 axially along the center rod 1 for a certain length, the rotation-limiting effect of the anti-rotation groove 112 can be enhanced.

[0082] As shown in Figures 5 and 8, in some embodiments, the positioning groove 822 extends axially along the center rod 1. The positioning groove 822 extends axially along the second rod segment 12 of the center rod 1 and is formed on the outer side of the rod peripheral wall 14 in the radial direction of the rod peripheral wall 14. By extending the positioning groove 822 axially along the center rod 1 for a certain length, the rotation-limiting effect of the positioning groove 822 can be enhanced.

[0083] As shown in Figures 5, 6, and 8, the magnetic member 3 includes, for example, a winding 31 and an iron core 32. The magnetic member 3 is composed of a plurality of windings 31 and iron cores 32, with a layer of windings 31 and a layer of iron cores 32 stacked and sheathed on the center rod 1. This design facilitates the manufacture of the iron core 32 and the winding of the windings 31. The iron core 32 is transitionally fitted with the center rod 1, and a limited rotation structure 8 is provided between the iron core 32 and the center rod 1. The limited rotation structure 8 is used to limit the rotation of the iron core 32 about the axis of the center rod 1. For example, the rotation limiting structure 8 includes a rotation limiting pin 823 and a rotation limiting groove 82. The rotation limiting groove 82 includes a first rotation limiting groove 821 arranged on the iron core 32 and a positioning groove 822 on the center rod 1. The first rotation limiting groove 821 on the iron core 32 is a semicircular recess and can be matched with the positioning groove 822 of the semicircular recess on the outer side of the lower part of the center rod 1. During the assembly process, the rotation limiting pin 823 is inserted between the two. This design limits the rotation of the iron core 32 around the central axis of the center rod 1, ensuring that the output line of the winding 31 is consistent with the design state, and thereby improving the stability of the connection between the iron core 32 and the center rod 1. This design ensures that the entire magnetic part 3 is fixed on the center rod 1 according to the design state, which can improve the rigidity of the stator 100 and the stability of the operation of the electromagnetic vibration absorber 1000. For example, the assembly process of the center rod 1 and the iron core 32 can be as follows: first, the rotation-limiting pin 823 is installed in the positioning groove 822 of the center rod 1. The rotation-limiting pin 823 protrudes from the positioning groove 822 along the radial direction of the center rod 1. The rotation-limiting pin 823 and the center rod 1 can be initially fixed with an adhesive material. Then, each layer of the iron core 32 after winding is pressed onto the outside of the center rod 1 in sequence. At this time, the protruding portion of the rotation-limiting pin 823 can play a good guiding role in the assembly of the iron core 32, ensuring the position accuracy of each layer of winding 31. Finally, the press-fitting of all layers of the iron core 32 is completed. The center rod 1 and each layer of the iron core 32 adopt an interference fit to ensure the tightness of the fit. The assembled rotation-limiting pin 823 remains between the center rod 1 and the iron core 32. During operation, since the rotation-limiting pin 823 limits the circumferential rotation of the iron core 32, the unsafe factors caused by the circumferential rotation of the winding 31 are avoided.

[0084] As shown in Figures 3 and 5, in some embodiments, the center rod 1 further includes a rod ring structure 15, the outer diameter of the rod ring structure 15 being greater than the outer diameter of the second rod segment 12, and the rod ring structure 15 can stop the magnetic component 3 in the axial direction of the center rod 1. The rod ring structure 15 is arranged between the first rod segment 11 and the second rod segment 12. In the axial direction of the center rod 1, the first rod segment 11, the rod ring structure 15 and the second rod segment 12 are arranged in sequence. For example, the magnetic component 3 is installed on the magnetic component installation area 122 of the second rod segment 12, and the rod ring structure 15 is located on the upper side of the magnetic component 3 (as shown in Figure 1). The rod ring structure 15 can limit the axial movement of the magnetic component 3 and prevent the magnetic component 3 from moving to the first rod segment 11.

[0085] As shown in Figures 5, 6, and 7, in some embodiments, the center rod cable outlet holes 16 are located on the side of the coil structure 15 facing away from the second rod segment 12. The center rod cable outlet holes 16 may be provided only in the first rod segment 11, only in the coil structure 15, or partially in the first rod segment 11 and partially in the coil structure 15. For example, along the axis of the center rod 1, the coil structure 15 has a certain thickness, and each center rod cable outlet hole 16 is partially provided in the coil structure 15, not completely extending through the thickness of the coil structure 15. In the radial direction of the center rod 1, the outer diameter of the coil structure 15 is greater than the outer diameter of the second rod segment 12, and the center rod cable outlet holes 16 protrude radially from the second rod segment 12. The coil structure 15 can guide and protect electrical connectors, such as signal output cables and other wiring harnesses.

[0086] As shown in Figures 1, 2, 5, and 6, in some embodiments, the end of the first rod segment 11 away from the second rod segment 12 is provided with a first threaded segment 171, which can be threadedly connected to the fastening nut 702. The end of the second rod segment 12 away from the first rod segment 11 is provided with a second threaded segment 172, which can be threadedly connected to the limiting nut 18. The magnetic component installation area 122 is located between the rod ring structure 15 and the second threaded segment 172. The limiting nut 18 can be sleeved on the second threaded segment 172 of the center rod 1. The limiting nut 18 is installed at the lower end of the magnetic component 3, and the rod ring structure 15 is located at the upper end of the magnetic component 3. The limiting nut 18 and the rod ring structure 15 cooperate to limit the axial movement of the magnetic component 3.

[0087] As shown in FIG1 , the stator 100 according to an embodiment of the present application includes a position sensor 800 and the center rod 1 of the above embodiment. The position sensor 800 is mounted in the sensor mounting area 141. The position sensor 800 can accurately detect the relative position between the mover 600 and the stator 100, thereby achieving accurate control.

[0088] According to the stator 100 of the embodiment of the present application, by setting the above-mentioned center rod 1, the center rod 1 can be applied to the electromagnetic vibration absorber 1000, and by setting the sensor mounting area 141 on the center rod 1, it can be used to fix the sensor 800, avoiding setting the sensor 800 on the mover 600 and affecting its detection accuracy.

[0089] As shown in Figures 1 to 3, in some embodiments, the stator 100 further includes a cable 2 and a magnetic component 3. The cable 2 is passed through the center rod outlet hole 16, a portion of the cable 2 is located in the hollow cavity of the center rod 1, and another portion of the cable 2 is located outside the center rod 1. The magnetic component 3 can be sleeved on the magnetic component installation area 122 of the center rod 1, and a portion of the cable 2 is arranged on the outer periphery of the magnetic component 3. The magnetic component 3 includes a winding wire end, which can be led out to the outer periphery of the magnetic component 3, and the winding wire end can be connected to the cable 2. That is, the other portion of the cable 2 can be connected to the winding wire end at the outer periphery of the magnetic component 3. Since the winding wire end is connected to the cable 2 on the outside of the magnetic component 3, the tool operation space is not restricted, and the assembly space is expanded, which is conducive to reducing the difficulty of assembly and improving assembly efficiency. It is also conducive to mass production and easy to intuitively find problems during subsequent maintenance, thereby reducing maintenance costs.

[0090] In the related art, the connection position between the winding wire end of the magnetic component and the cable is located on the inside of the magnetic component. The inner lead wire is not only difficult to thread back and forth for assembly, wastes materials, and takes up design space, but also inconvenient to detect because the connection position is located on the inside of the magnetic component. In the present application, the winding wire end of the magnetic component 3 can be led out to the periphery of the magnetic component 3, and the cable 2 is connected to the periphery of the magnetic component 3, which has a larger assembly space, reduces the difficulty of assembly, and can also improve assembly efficiency, which is conducive to mass production and easy to intuitively find problems during subsequent maintenance.

[0091] As shown in Figures 1 to 3, in combination with the above embodiments, the center rod 1 includes a first rod segment 11 and a second rod segment 12. In the axial direction of the center rod 1, the first rod segment 11 is located on one side of the center rod wire outlet hole 16 (the upper side as shown in Figure 1), and the second rod segment 12 is located on the other side of the center rod wire outlet hole 16 (the lower side as shown in Figure 1). The magnetic component 3 can be sleeved outside the second rod segment 12. Specifically, the center rod wire outlet hole 16 and the magnetic component 3 are located at different positions on the center rod 1, so as to avoid interference between the cable 2 and the magnetic component 3 when passing through the center rod wire outlet hole 16, thereby reducing the difficulty of inserting the cable 2 into the center rod 1 and improving assembly efficiency. In addition, the cable 2 can extend downward after passing through the center rod wire outlet hole 16 to surround the outer periphery of the magnetic component 3, thereby avoiding waste of wire caused by excessive winding when the cable 2 passes through the inner side of the magnetic component 3 and then winds toward the outer side of the magnetic component 3. Of course, the cable 2 can also be passed from the periphery of the magnetic part 3 through the center rod wire outlet hole 16 into the hollow cavity. In this application, there is no limitation on the threading direction at the center rod wire outlet hole 16. The threading direction described is only used to illustrate the structural features.

[0092] As shown in Figures 1-3, 4-6, and 10, in some embodiments, the center rod 1 includes a first rod segment 11 and a second rod segment 12. The sensor mounting area 141 is located on the first rod segment 11, and the magnetic member mounting area 122 is located on the second rod segment 12. The hollow cavity includes a wiring cavity 13 located within the first rod segment 11. The center rod wire outlet hole 16 is connected to the wiring cavity 13. The stator 100 also includes a wire outlet device 4, which is disposed within the wiring cavity 13. The wire outlet device 4 can fix the cable 2. By providing the wire outlet device 4, the movement of the cable 2 can be restrained, reducing the shaking of the cable 2 within the wiring cavity 13. The wire outlet device 4 can also protect the cable 2 and reduce the risk of the cable 2 being squeezed or scratched. The center rod wire outlet hole 16 and the magnetic member 3 are located at different positions on the center rod 1 to prevent interference between the cable 2 and the magnetic member 3 when the cable 2 exits the center rod wire outlet hole 16. This can reduce the difficulty of inserting the cable 2 into the center rod 1, which is conducive to improving assembly efficiency. In addition, the cable 2 extends downward after passing through the wire outlet hole 16 of the center rod to surround the outer periphery of the magnetic part 3, which can avoid wire waste caused by excessive winding when the cable 2 passes through the inner side of the magnetic part 3 and then winds toward the outer side of the magnetic part 3.

[0093] In the related art, the cable is not fixed after passing through the center rod, and the inner diameter of the center rod end is reduced, making it difficult to design the cable outlet. Moreover, because the wiring is not fixed inside the center rod, the cable is easily squeezed or scratched by surrounding components during the movement of the electromagnetic vibration absorber, affecting the safety of the electrical system. In the present application, by providing a cable outlet device 4, the movement of the cable 2 can be constrained, reducing the shaking of the cable 2 in the wiring cavity 13. The cable outlet device 4 also protects the cable 2, reducing the risk of the cable 2 being squeezed or scratched.

[0094] As shown in Figure 10, in some embodiments, one axial end of the wire outlet device 4 has a wire hole inlet, and the other axial end of the wire outlet device 4 has a wire hole outlet. The cable 2 can pass through the wire hole inlet and the wire hole outlet. There are multiple wire hole outlets, and the multiple wire hole outlets are spaced apart along the axis of the wire outlet device 4. The wire hole outlets can be aligned with the corresponding center rod wire outlet through hole 16, thereby reducing the probability of the cable 2 being squeezed.

[0095] As shown in Figure 10, in some embodiments, the wire hole inlet and the wire hole outlet correspond one to one, and a cable channel 41 for fixing the corresponding cable 2 is formed between the wire hole inlet and the corresponding wire hole outlet, and the diameter of the cable channel 41 differs from the outer diameter of the fixed cable 2 by no more than 5 mm. The cable channel 41 can fix the cable 2, and the wire hole outlet of the cable channel 41 can be aligned with the corresponding center rod outlet hole 16. By providing the cable channel 41 on the outlet device 4, the outlet direction of the cable 2 can be guided and the movement of the cable 2 can be constrained. In addition, since the diameter of the cable channel 41 differs from the outer diameter of the fixed cable 2 by no more than 5 mm, the fixing and restraining effect of the cable channel 41 on the cable 2 can be improved. Optionally, the diameter of the cable channel 41 differs from the outer diameter of the fixed cable 2 by 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, etc.

[0096] As shown in Figures 1, 3, 4 and 10, for example, the outlet device 4 is arranged in the wiring cavity 13 of the center rod 1, and the cable channel 41 passes through the outlet device 4 along the axial direction of the outlet device 4 (the up and down direction as shown in Figure 1). As shown in Figures 1 and 10, the cable channel 41 includes a wire hole inlet and a wire hole outlet. The wire hole outlet here is the outlet of the cable channel 41, and the wire hole outlet is aligned with the corresponding center rod outlet hole 16. The wire hole inlet and the wire hole outlet are located at the two ends of the cable channel 41 in the axial direction. The wire hole inlet is close to the upper end of the first rod segment 11, and the wire hole outlet is close to the upper end of the second rod segment 12. The cable 2 enters the cable channel 41 from the wire hole inlet, and the cable 2 passes through the cable channel 41 from the wire hole outlet. Then, the cable 2 passes through the center rod outlet hole 16 corresponding to the wire hole outlet of the cable channel 41.

[0097] As shown in Figures 1 to 3 and Figure 8, in some embodiments, the magnetic component 3 includes an iron core 32 and a winding 31. The iron core 32 includes a plurality of winding grooves, and the plurality of winding grooves are dispersed along the axial direction of the iron core 32. The winding 31 can be wound in the winding grooves, and the winding grooves can position and install the winding 31. The outer end wire head of the winding 31 is a winding wire head, and the winding wire head can be connected to the cable 2, so that the electrical connection between the magnetic component 3 and the cable 2 can be achieved. The winding wire head is the outer end wire head of the winding 31, which is convenient for performing the electrical connection operation between the magnetic component 3 and the cable 2 from the peripheral space of the magnetic component 3. The operating space is large and relatively convenient. By arranging the winding 31 in the winding groove, the structure of the magnetic component 3 can be simplified, and the internal structure of the magnetic component 3 can be made more compact.

[0098] As shown in Figures 1 to 3, in some embodiments, the cable 2 includes a phase line portion 23 and a wiring portion 22, and the phase line portion 23 and the wiring portion 22 are connected to each other. The phase line portion 23 is located in the wiring cavity 13 and part of the phase line portion 23 can pass through the center rod outlet hole 16. The winding 31 has multiple winding wire ends of the same phase, and multiple winding wire ends of the same phase are connected in series through the wiring portion 22. That is to say, the wiring portion 22 is connected in series with the winding wire ends of the same phase, and the wiring portion 22 is connected to the phase line portion 23, thereby realizing the electrical connection between the cable 2 and the magnetic part 3. For example, the series connection of multiple winding wire ends of the same phase through the wiring portion 22 and the connection between the phase line portion 23 and the wiring portion 22 can be carried out independently, which is conducive to improving assembly efficiency and achieving mass production. In conjunction with the above embodiment, the cable 2 includes a phase portion 23 and a wiring portion 22. The phase portion 23 is located within the wiring cavity 13, and a portion of the phase portion 23 can be passed through the center rod outlet hole 16. The wiring portion 22 is arranged on the periphery of the magnetic component 3 and connected to the phase portion 23. As a result, the phase portion 23 can be connected to the wiring portion 22 on the periphery of the magnetic component 3, improving assembly efficiency and convenience. As shown in Figure 10, the outlet device 4 has a cable channel 41. The cable channel 41 can fix the phase portion 23, and the outlet of the cable channel 41 can be aligned with the corresponding center rod outlet hole 16. By providing the cable channel 41 on the outlet device 4, the outlet direction of the phase portion 23 can be guided and the movement of the phase portion 23 can be restricted. The outlet device 4 can extend along the axial direction of the center rod 1, and the maximum outer diameter of the outlet device 4 is smaller than the minimum inner diameter of the center rod 1, so that the outlet device 4 can be accommodated in the wiring cavity 13. The phase line portion 23 can be partially arranged inside the outlet device 4. The outlet device 4 is configured in the wiring cavity 13 of the center rod 1, and the cable channel 41 passes through the outlet device 4 along the axial direction of the outlet device 4 (the up and down direction as shown in Figure 1). As shown in Figure 10, the cable channel 41 includes a wire hole entrance and a wire hole exit. The wire hole exit here is the exit of the cable channel 41, and the wire hole exit is aligned with the corresponding center rod outlet hole 16. The wire hole entrance and the wire hole exit are located at the two ends of the cable channel 41 in the axial direction. The wire hole entrance is close to the upper end of the first rod segment 11, and the wire hole exit is close to the upper end of the second rod segment 12. The phase line portion 23 enters the cable channel 41 from the wire hole entrance, and the phase line portion 23 passes through the cable channel 41 from the wire hole exit, and then the phase line portion 23 passes through the center rod outlet hole 16 corresponding to the exit of the cable channel 41.

[0099] For example, the interior of the wire outlet device 4 is a whole cavity structure, and the wire threading hole inlet and the wire threading hole outlet are both connected to the cavity structure inside the wire outlet device 4 .

[0100] In some embodiments, there are multiple windings 31 of the same phase, and the wiring section 22 is divided into multiple sections. The winding wire ends of adjacent and same-phase windings 31 are connected in series through the corresponding wiring sections 22. The winding wire ends and the wiring sections 22 are connected and assembled and can be further split, which is conducive to improving assembly efficiency and achieving mass production.

[0101] For example, when winding 31 is a three-phase winding, winding 31 includes a U-phase winding, a V-phase winding, and a W-phase winding. The following uses multiple U-phase windings, such as a first U-phase winding, a second U-phase winding, and a third U-phase winding, as examples to illustrate a connection structure in which multiple same-phase winding ends are connected in series via wiring portion 22.

[0102] The U-phase winding is wound by the U-phase winding, and the U-phase winding is installed in the winding groove. The winding ends of the U-phase winding are U-phase one end and U-phase two end respectively. The U-phase one end is the starting end of the U-phase winding, and the U-phase two end is the end of the U-phase winding, wherein the U-phase one end and the U-phase two end are both led to the outside of the magnetic part 3, and the U-phase two ends of the first U-phase winding can be connected to the U-phase one end of the second U-phase winding through the wiring part 22, and the U-phase two ends of the second U-phase set can be connected to the U-phase one end of the third U-phase winding through the wiring part 22, and the U-phase two ends of the third U-phase winding can be connected to the U-phase one end of the fourth U-phase winding through the wiring part 22. If the U-phase winding includes N, where N is a positive integer, then after multiple winding ends of the same phase are connected in series through the wiring part 22, only the U-phase one end of the first U-phase winding and the U-phase two ends of the Nth U-phase winding are left unconnected. According to the above embodiment, the U-phase ends of the N-th U-phase winding can be connected to the phase line portion 23 via the wiring portion 22. The V-phase winding and the W-phase winding are similar and will not be described in detail here.

[0103] As shown in FIG8 , in some embodiments, a plurality of wire outlet slots 322 are provided on the outer circumference of the core 32 . The plurality of wire outlet slots 322 are spaced apart along the circumference of the core 32 . At least a portion of the wiring portion 22 can be embedded within the wire outlet slots 322 . This means that the winding ends can be led out to the outer circumference of the magnetic member 3 . The winding ends can be connected to the wiring portion 22 within the corresponding wire outlet slots 322 on the outer circumference of the magnetic member 3 . This increases the tool operation space and the assembly space, thereby reducing the assembly difficulty and improving the assembly efficiency. This is beneficial for mass production and makes it easier to visually detect problems during subsequent maintenance, thereby reducing maintenance costs. The bottom end of the core 32 is provided with a plurality of reinforcing ribs 321 . The plurality of reinforcing ribs 321 are spaced apart to form wire inlet openings 3212 . The wiring portion 22 can be connected to the wiring portion 22 of other phases through the corresponding wire outlet slots 322 and wire inlet openings 3212 . This arrangement can make the structure more compact.

[0104] For example, the number of outlet slots 322 is a positive integer multiple of the total number of phases of the winding 31. The number of outlet slots 322 is Z, and the total number of phases of the winding 31 is M. If Q = Z / M, then Q is a positive integer. For example, if M = 3, Z can be a multiple of three, such as 3, 6, 9, or 12. This arrangement can make the spatial arrangement of the multi-phase winding 31 symmetrical, and the electric potential and magnetic potential generated by each phase winding 31 should be symmetrical, thereby improving the stability and reliability of the electromagnetic vibration absorber 1000. It can also meet the various outlet arrangement requirements of the winding wire ends of the winding 31.

[0105] In some embodiments, the magnetic component 3 includes a plurality of windings 31 and a plurality of iron cores 32. The windings 31 and the iron cores 32 can be alternately stacked in sequence along the axial direction of the center rod 1, that is, an iron core 32 is sandwiched between two adjacent windings 31. The wiring portion 22 extends along the axial direction of the magnetic component 3. The outer end wire ends of the windings 31 are winding wire ends. The wiring portion 22 includes three-phase wiring, and the same-phase windings 31 can be connected through the corresponding same-phase wiring portions 22. Specifically, the electromagnetic vibration absorber 1000 is a linear motor, and the mover 600 of the electromagnetic vibration absorber 1000 performs linear motion relative to the stator 100 of the electromagnetic vibration absorber 1000. The structure of multiple windings 31 and multiple iron cores 32 can enhance the strength of the magnetic field generated by the magnetic component 3. The iron core 32 can concentrate and guide the magnetic field, making the magnetic field stronger and more stable, and improving the working efficiency of the magnetic component 3.

[0106] For example, the windings 31 and cores 32 are both annular. The magnetic component 3 is composed of multiple windings 31 and cores 32 stacked one layer at a time. The windings 31 and cores 32 are stacked along the axial direction of the center rod 1. After stacking, the magnetic component 3 is sleeved on the center rod 1, ultimately forming a cylindrical shape. The windings 31 are formed by stacking windings from the inside outward, one coil at a time, until the final coil at the outermost end, forming a coiled spring-like spiral structure. The innermost winding ends are radially extended to the outermost layer. There are three or six wire outlet slots 322 evenly distributed on the circumference of each iron core 32. The wire outlet slots 322 can constrain the wire outlet direction. The winding end of each layer of winding 31 is led out from the designated wire outlet slot 322. According to the principle that the three-phase lines must be connected together in the same phase, the same-phase winding 31 can be led out along the wire outlet slots 322 at the same angle, so that the same-phase winding ends can be easily connected from top to bottom from the outside of the magnetic part 3 using the corresponding wiring part 22. It is worth noting that the winding of each layer of winding 31 of the magnetic part 3 is superimposed from the inside to the outside until the last circle on the outermost side, and the winding wire end at the innermost end is also radially led out to the outside of the outermost layer. Therefore, after the winding of each layer of winding 31 of the magnetic part 3 of the present application is completed, the wire is output from the outside of the magnetic part 3, and the winding wire end is also connected to the cable 2 on the outside of the magnetic part 3. This winding 31 output from the outside is not only simple to thread back and forth and assemble, saves materials, but also effectively utilizes the design space. The connection on the outside of the magnetic part 3 has a larger tool operation space, which is conducive to assembly, and the output wire contact is more stable. It is also easy to troubleshoot during later maintenance, reducing maintenance costs.

[0107] The iron core 32 and the winding 31 are arranged alternately along the axial direction of the center rod 1, and the winding wire ends are connected to the wiring part 22 through the wire outlet slot 322 set on the iron core 32. The wire outlet slot 322 is not only convenient for wire outlet, but also can fix the wiring part 22, so as to facilitate the connection of the same-phase winding wire ends of each layer through the wiring part 22. The same-phase winding wire ends are connected through the wiring part 22, and the wiring part 22 is embedded in the wire outlet slot 322. On the one hand, it can fix the wiring part 22 and reduce the shaking of the wiring part 22; on the other hand, the structure is simple, the fixation reliability is high, and it is easy to assemble.

[0108] Optionally, the magnetic part 3 may include an iron core 32 and multiple windings 31. The iron core 32 is provided with multiple winding grooves, the winding grooves can be installed with the windings 31, and the winding grooves can extend radially. Multiple wire outlet slots 322 are provided on the outer peripheral surface of the iron core 32, and the wire outlet slots 322 can extend axially.

[0109] For example, after the U-phase end of the first U-phase winding 31, the V-phase end of the first V-phase winding 31, and the W-phase end of the first W-phase winding 31 are connected to the wiring portions 22 of the corresponding phases, the different wiring portions 22 can be connected after passing through the corresponding outlet slots 322 and inlet ports 3212. The number of inlet ports 3212 is equal to the total number of phases of the winding 31. In the radial direction of the iron core 32, an outlet slot 322 is correspondingly provided on the outside of each inlet port 3212. As a result, the wiring portions 22 connecting the ends of the same-phase windings can pass through the corresponding outlet slots 322 and the inlet ports 3212 provided for the corresponding outlet slots 322. This arrangement can make the structure more compact.

[0110] For example, a wire harness fixing groove 3211 connected to the wire inlet 3212 is defined between multiple reinforcing ribs 321, and part of the wiring part 22 is accommodated in the wire harness fixing groove 3211. By setting the wire harness fixing groove 3211, the wiring part 22 can be constrained to prevent the wiring part 22 from shaking at will, reduce the probability of damage to the wiring part 22, and improve the service life of the wiring part 22.

[0111] As shown in Figures 1, 3, and 4, in some embodiments, the stator 100 further includes a limiting pad 5, which is sleeved on the center rod 1 and can cooperate with the center rod outlet hole 16. The limiting pad 5 and the center rod outlet hole 16 jointly fix the cable 2. The limiting pad 5 can protect the cable 2 and ensure the reliability of the electrical system.

[0112] As shown in Figures 5-7, in some embodiments, the center rod 1 includes a first rod segment 11, a second rod segment 12, and a rod ring structure 15, wherein the first rod segment 11 and the second rod segment 12 are separated by the rod ring structure 15. A portion of the center rod cable outlet hole 16 is provided on the first rod segment 11, and another portion is provided on the rod ring structure 15. The limiting pad 5 is a rotatable structural member that can be mounted on the first rod segment 11. The limiting pad 5 and the center rod cable outlet hole 16 enclose a wiring limiting hole, through which the cable 2 can pass. Specifically, the center rod cable outlet hole 16 includes a first cable outlet half hole 111 and a second cable outlet half hole 152. The first cable outlet half hole 111 is provided on the first rod segment 11, and the second cable outlet half hole 152 is provided on the rod ring structure 15. The radial length of the second cable outlet half hole 152 in the center rod 1 is greater than the radial length of the first cable outlet half hole 111 in the center rod 1. The limiting pad 5 has a limiting pad half hole. The limiting pad half hole and the center rod outlet hole 16 enclose a wiring limiting hole. That is, the limiting pad half hole and the second outlet half hole 152 enclose a wiring limiting hole, through which the cable 2 can pass. As a result, the structure of the center rod 1 can be more compact, the wiring limiting hole can protect the cable 2, and the rod ring structure 15 can limit the axial movement of the magnetic member 3, preventing the magnetic member 3 from moving to the first rod segment 11.

[0113] For example, referring to FIG. 1 , the cable 2 is a three-phase cable 2 , and the cable 2 is located in the wiring cavity 13 , so the cable 2 in the figure is the phase line portion 23 . As shown in Figures 3 and 6, the center pole wire outlet through holes 16 include three, each center pole wire outlet through hole 16 corresponds to a phase line portion 23, and the outlet of the cable channel 41 is aligned with the center pole wire outlet through hole 16. As shown in Figure 10, there are also three outlets of the cable channel 41 (not fully shown), and the three-phase line portions 23 respectively pass through the outlets of different cable channels 41 and pass through the corresponding center pole wire outlet through holes 16, that is, the three-phase line portions 23 include a U-phase line portion, a V-phase line portion and a W-phase line portion. The U-phase line portion passes through one cable channel 41 and through one center pole wire outlet through hole 16, the V-phase line portion passes through another cable channel 41 and through another center pole wire outlet through hole 16, and the W-phase line portion passes through another cable channel 41 and through another center pole wire outlet through hole 16.

[0114] Optionally, on the magnetic component 3 , the winding ends of the same-phase winding 31 are connected together by the same-phase wiring portion 22 to form a same-phase winding end group, and the different-phase winding end groups are connected at the reinforcing ribs 321 .

[0115] Therefore, the phase line part 23 passes through the inner side of the center pole 1 from the outside, passes through the wire hole outlet of the wire outlet device 4, and then passes through the center pole wire outlet hole 16, and is connected to the wiring part 22 on the outside of the magnetic part 3. The wire outlet is fixed during the whole process, and the wire outlet device 4 plays the role of fixing and protecting the phase line part 23, solving the problem of the risk of extrusion and scratching in the related technology.

[0116] Optionally, the outlet device 4 can adopt a circular pipe structure, the phase line part 23 is fixed in the pipe, and the three-phase phase line parts 23 respectively pass through the top and bottom of the three pipes on the outlet device 4, and the outlets of the three pipes below the outlet device 4 are evenly distributed in the circumferential direction, and the center rod outlet through hole 16 corresponds one by one to the outlets of the three pipes of the outlet device 4.

[0117] Optionally, three threading hole outlets are arranged at equal angles on the wire outlet device 4.

[0118] The center rod outlet hole 16 is set in one-to-one correspondence with the outlet notch 322. Specifically, the center rod outlet hole 16, the outlet notch 322 and the wire hole outlet of the cable channel 41 are set in one-to-one correspondence, so that the position deviation of the cable 2 is small and the connection is reliable.

[0119] For example, the center rod has three wire outlet through holes 16 , three wire outlet slots 322 , and three wire threading hole outlets of the cable channel 41 , and these three correspond to each other one by one.

[0120] As shown in Figures 1 and 10 , in some embodiments, the end of the cable 2, away from the magnetic member 3, extends outside the center pole 1. The cable 2 is connected to a plug connector 21. Specifically, the plug connector 21 can be connected to a power source to power the magnetic member 3. The plug connector 21 is a quick-change connector that allows for quick connection to the power source, making operation simple and fast.

[0121] The linear motor according to the embodiment of the present application includes the stator 100 of the above embodiment.

[0122] The electromagnetic vibration absorber 1000 according to the embodiment of the present application includes a mover 600 and the stator 100 of the above embodiment. The mover 600 has a mover cavity. The stator 100 is arranged in the mover cavity. The mover 600 can move axially relative to the stator 100.

[0123] Specifically, the electromagnetic shock absorber 1000 includes a linear motor, which combines a traditional hydraulic damping shock absorber and a linear motor to form the electromagnetic shock absorber 1000 of the present application. The traditional hydraulic damping shock absorber is a passive vibration absorber and does not require the design of motor output lines. The overall structure of the electromagnetic shock absorber 1000 is based on the traditional hydraulic damping shock absorber, in which the intermediate damper is replaced by a linear motor. Its purpose is to use the linear motor for active vibration reduction on the basis of passive vibration reduction. According to the excitation transmitted by the road surface, active control is achieved by adjusting the magnetic part 3, thereby effectively attenuating the excitation transmitted to the passenger compartment on the path, and ultimately improving the vehicle's passability, smoothness and comfort. According to the structural composition of the electromagnetic shock absorber 1000, it mainly includes a stator 100, a mover 600 and a tower top 700, in which the stator 100 and the mover 600 form a linear motor, and the winding wire end of the winding 31 is connected to the stator 100 through the cable 2, and the cable 2 passes through the wiring cavity 13 of the center rod 1 to the outside of the motor.

[0124] The electromagnetic vibration absorber 1000 of the embodiment of the present application integrates multiple functions, enabling a larger electromagnetic force design space and an efficient operating environment while maintaining normal operation, thereby enhancing overall competitiveness. By providing the aforementioned stator 100, the center rod 1 can be applied to the electromagnetic vibration absorber 1000. By providing a sensor mounting area 141 on the center rod 1, it can be used to secure the sensor 800, avoiding the need to place the sensor 800 on the mover 600, which would affect its detection accuracy.

[0125] As shown in Figures 1, 2, and 9, in some embodiments, the mover 600 includes a housing 601, a mover magnet 602, and a guide post 6032. The mover magnets 602 are evenly distributed on the inner side of the housing 601, providing a fixed magnetic field. The inner side of the mover magnets 602 forms the mover cavity. The mover magnets 602 are sleeved around the outer periphery of the magnetic member 3 and mounted on the inner wall of the housing 601. The mover magnets 602 are positioned between the housing 601 and the magnetic member 3. The cable 2 is partially positioned between the mover magnet 602 and the magnetic member 3. Specifically, a gap is defined between the mover magnet 602 and the magnetic member 3, through which the cable 2 passes and into the wiring stop hole of the first rod segment 11. When the mover magnet 602 linearly moves axially relative to the magnetic member 3, interference with the cable 2 is avoided, and the structure of the electromagnetic vibration absorber 1000 is more compact. The guide column 6032 is connected to the shell 601, and the guide column 6032 can also be connected to the lower arm of the vehicle 10000. The hollow cavity includes a guide cavity 19. At least part of the guide column 6032 can extend into the guide cavity 19 and can move axially along the center rod 1, that is, the guide column 6032 plays a guiding role, thereby improving the stability and reliability of the axial movement of the mover 600.

[0126] As shown in Figures 1 and 2, for example, the mover 600 includes a housing 601 and a fork arm 603. The mover magnet 602 is mounted on the inner wall of the housing 601. The fork arm 603 can be connected to the housing 601. The fork arm 603 is also used to connect to the lower arm of the subframe. Specifically, the fork arm 603 and the lower arm are assembled to the subframe in conjunction with each other. The fork arm 603 and the housing 601 are connected by bolts, together forming a closed operating environment inside the electromagnetic shock absorber 1000. The connection between the electromagnetic shock absorber 1000 and the vehicle 10000 is achieved through the housing 601 and the fork arm 603, and the structural layout is reasonable.

[0127] As shown in Figures 1 and 9, one end of the housing 601 is connected to a fork arm 603, which is provided with a guide post 6032. The guide post 6032 is located near the second rod segment 12 of the center rod 1. The other end of the housing 601 forms a housing hole 6012, through which the center rod 1 can pass. When the mover 600 moves, the housing 601 moves accordingly. When the mover 600 is in the first extreme position, the center rod 1 protrudes the most from the housing hole 6012. When the mover 600 is in the second extreme position, the center rod 1 protrudes the least from the housing hole 6012. The intermediate position of the mover 600 is between the first and second extreme positions. In other words, the housing 601 moves relative to the center rod 1 at the housing hole 6012, and the guide post 6032 moves relative to the center rod 1 at the opening of the second rod segment 12. For example, the first sliding bearing 6041 is embedded in the housing hole 6012 of the housing 601. Specifically, the first sliding bearing 6041 is embedded in the frustum of the housing hole 6012. The frustum can be radially staggered with the upper support member 701, thereby increasing the axial space of the electromagnetic vibration absorber 1000.

[0128] As shown in Figures 1, 2 and 9, optionally, the fork arm 603 includes a fork arm body 6031, a guide post 6032 connected to the side of the fork arm body 6031 facing the center rod 1, and the mover 600 further includes a buffer pad 605, which is located between the fork arm body 6031 and the center rod 1, and the buffer pad 605 is sleeved on the guide post 6032 and is located outside the end of the center rod 1. When the mover 600 moves to the second extreme position, the buffer pad 605 can absorb the collision of the fork arm body 6031 on the center rod 1, and can buffer the impact of the mover 600 on the stator 100 under extreme working conditions, thereby protecting the magnetic component 3 on the stator 100, playing a protective role and reducing noise.

[0129] For example, one end of the second rod segment 12 of the center rod 1 is connected to the first rod segment 11. The other end of the second rod segment 12 has an opening that communicates with the guide cavity 19. The guide post 6032 can pass through the opening and extend into the guide cavity 19. When the mover 600 moves, the mover 600 has a first extreme position, a second extreme position, and an intermediate position. When the mover 600 is in the first extreme position, the guide post 6032 extends the least into the guide cavity 19. When the mover 600 is in the second extreme position, the guide post 6032 extends the most into the guide cavity 19. The intermediate position of the mover 600 is between the first and second extreme positions.

[0130] As shown in Figures 1 to 4, in some embodiments, the electromagnetic vibration absorber 1000 also includes a first sliding bearing 6041 and a second sliding bearing 6042, the shell 601 has a shell hole 6012, the center rod 1 passes through the shell hole 6012 to partially extend out of the shell 601, the first sliding bearing 6041 is arranged between the shell hole 6012 and the outer peripheral surface of the center rod 1, and the second sliding bearing 6042 is arranged between the outer peripheral surface of the guide column 6032 and the cavity wall of the hollow cavity. That is to say, the first sliding bearing 6041 is arranged at the plug-in fitting between the shell 601 and the center rod 1, and the second sliding bearing 6042 is arranged at the plug-in fitting between the guide column 6032 and the guide cavity 19, that is, the first sliding bearing 6041 is arranged at the shell hole 6012 of the shell 601, and the second sliding bearing 6042 is arranged at the opening of the second rod segment 12. By arranging the first sliding bearing 6041 and the second sliding bearing 6042, the sliding of the mover 600 can be made smoother, the operation accuracy of the electromagnetic vibration absorber 1000 can be improved, and the noise can be reduced.

[0131] As shown in FIG. 1 , in some embodiments, the guide cavity 19 may be in communication with the wiring cavity 13 , and the guide cavity 19 and the wiring cavity 13 together form a hollow cavity.

[0132] Alternatively, in other embodiments, the guide cavity 19 may be separated from the wiring cavity 13 by a partition wall, and the guide cavity 19 and the wiring cavity 13 respectively form a part of the hollow cavity.

[0133] As shown in Figures 1, 4, and 9, in some embodiments, a positioning hole 6011 is provided on the housing 601. A positioning pin can be inserted through the positioning hole 6011 and engage with an anti-rotation groove 112 extending axially on the center rod 1 to limit the rotation of the housing 601 relative to the center rod 1. For example, the stator 100 and the tower top 700 are assembled together via the center rod 1 in the stator 100 and a fastening nut 702. During assembly, the fastening nut 702 is tightened with a torque wrench. To prevent the stator 100 from rotating around the central axis of the center rod 1 along with the fastening nut 702, which would result in an inability to tighten, anti-rotation grooves 112 are provided on both sides of the first rod segment 11 of the center rod 1. The housing 601 has positioning holes 6011 corresponding to the anti-rotation grooves 112. During assembly, a long pin is inserted into the pin hole to prevent rotation, and then the fastening nut 702 is tightened to complete the assembly.

[0134] As shown in Figures 1, 5, and 6, in some embodiments, the electromagnetic shock absorber 1000 further includes a tower top 700. A spring 607 is disposed between the tower top 700 and the housing 601. A local protrusion in the housing 601 supports the spring 607 and dissipates heat throughout the housing. The spring 607 can also cushion road impacts. The tower top 700 includes an upper support member 701, which can be connected to the vehicle body. The center rod 1 can pass through the upper support member 701 to allow the cable 2 to pass through the tower top 700 and out of the vehicle body. This connection between the electromagnetic shock absorber 1000 and the vehicle body 10000 is achieved through the upper support member 701. The tower top 700 cooperates with the shell 601 and seals the interior of the shell 601, that is, the interior of the electromagnetic vibration absorber 1000 is in a sealed state, which improves the stability and reliability of operation; a first threaded section 171 is provided on the center rod 1, and the fastening nut 702 is located on the side of the upper support member 701 away from the mover 600, and the fastening nut 702 is screwed to the first threaded section 171. By cooperating with the fastening nut 702 and the first threaded section 171, the stator 100 can be assembled to the tower top 700, which improves the stability and reliability of the connection and is easy to assemble. The center rod 1 has an end shoulder 113, and the upper support member 701 can stop at the end shoulder 113; the fastening nut 702 is located on the side of the upper support member 701 away from the mover 600, and the fastening nut 702 can be screwed to the first threaded section 171 on the center rod 1, and the upper support member 701 is clamped between the fastening nut 702 and the end shoulder 113; the cooler 608 is fixed on the center rod 1, and the cooling chamber 142 inside the center rod 1 can exchange heat with the cooler 608 to realize heat exchange.

[0135] As shown in Figure 1, the tower top 700 can be fixed on the vehicle body, the center rod 1 passes through the middle of the upper support 701, and the cable 2 also passes through the vehicle body to reach the front cabin. By quickly replacing the connector, that is, the plug-in connector 21 cooperates with the electronic control system, thereby connecting to the electronic control system and finally realizing the control of the electromagnetic shock absorber 1000.

[0136] As shown in FIG. 1 , for example, a dust cover 606 is provided at the connection between the central rod 1 and the housing 601 to prevent dust and other impurities from entering the interior of the housing 601 .

[0137] As shown in Figure 11, a suspension system 2000 according to an embodiment of the present application includes the electromagnetic vibration absorber 1000 of the above-described embodiment. By providing the above-described electromagnetic vibration absorber 1000, the center rod 1 can be used for the electromagnetic vibration absorber 1000. By providing a sensor mounting area 141 on the center rod 1, it can be used to fix the sensor 800, avoiding the problem of placing the sensor 800 on the mover 600 and affecting its detection accuracy.

[0138] As shown in Figure 12, the vehicle 10000 according to the embodiment of the present application includes a suspension system 2000 according to the embodiment of the present application. By setting the above-mentioned suspension system 2000, the center rod 1 can be applied to the electromagnetic shock absorber 1000. By setting the sensor mounting area 141 on the center rod 1, it can be used to fix the sensor 800, avoiding setting the sensor 800 on the mover 600 and affecting its detection accuracy.

[0139] It should be emphasized that the center rod 1 of the present application integrates multiple functions such as limiting, positioning, anti-rotation, heat dissipation, guiding, and line output. First, the center rod 1 of the present application fully cooperates with the tower top 700, winding 31, iron core 32, and shell 601, so that in the same axial space, it can realize basic functions such as guidance and meet the external boundary space restrictions such as the tower top 700 and fork arm 603, making more valuable axial space for electromagnetic design, so as to obtain better electromagnetic thrust performance; second, the cable 2 of the present application is output from the outside of the magnetic part 3, passes through the output device 4 assembled inside the center rod 1, and is finally connected to the electric control through a quick-change plug connector 21, wherein the output from the outside of the magnetic part 3 is connected to the electric control device 4. The wires are easier to assemble, and the wire outlet device 4 assembled inside the center rod 1 can well protect and fix the cable 2; thirdly, there is a hollow structure between the inner side and the outer side of the rod peripheral wall 14 of the center rod 1 of the present application, forming a cooling chamber 142. By adding a cooling medium inside, combined with the cooler 608 assembled on the top of the center rod 1 to form a heat exchange cycle, it is very good to solve the heat dissipation problem of the electromagnetic shock absorber 1000 during operation, and the top of the center rod 1 is in full contact with the inside of the cooler 608 without adding additional parts. The entire cooling solution has a compact structure. Fourthly, the center rod 1 of the present application has threads at the upper and lower ends, and includes a positioning groove 822 and an anti-rotation groove 112, which well solves the assembly problem of the magnetic part 3 and the center rod 1, and the mover 600 and the center rod 1. The center rod 1 of the present application also has the advantages of high functional integration, compact space design, and easy disassembly and assembly.

[0140] Other structures and operations of the vehicle 10000 according to the embodiment of the present application are known to ordinary technicians in this field and will not be described in detail here.

[0141] In the description of this application, "first feature" and "second feature" may include one or more of these features. The up-down direction, left-right direction and front-back direction shall be based on the up-down direction, left-right direction and front-back direction shown in the figure.

[0142] In the description of this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature therebetween. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature.

[0143] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0144] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A central rod (1), wherein, The central rod (1) is provided with an anti-rotation groove (112), and the anti-rotation groove (112) is adapted to cooperate with the mover (600) to limit the rotation of the mover (600) relative to the central rod (1); on the outer side of the rod peripheral wall (14) of the central rod (1), there is also a sensor installation area (141) for installing a sensor (800).

2. The central rod (1) according to claim 1, wherein, The interior of the central rod (1) has a hollow cavity, and a central rod wire outlet through hole (16) communicating with the hollow cavity is formed in the rod peripheral wall (14) of the central rod.

3. The central rod (1) according to claim 1 or 2, wherein, The sensor installation area (141) at least includes a sensor positioning plane (1411), and a sensor fixing structure (1412) is provided on the sensor positioning plane (1411).

4. The central rod (1) according to claim 2, wherein, The central rod (1) includes a first rod section (11) and a second rod section (12), the sensor installation area (141) is located on the first rod section (11), and a magnetic part installation area (122) is provided on the second rod section (12).

5. The central rod (1) according to claim 4, wherein, Axially on the central rod (1), the central rod wire outlet through hole (16) is located between the sensor installation area (141) and the magnetic part installation area (122).

6. The central rod (1) according to claim 4 or 5, wherein, The interior of the central rod (1) has a cooling chamber (142), and the cooling chamber (142) is adapted to accommodate a cooling medium, and the cooling chamber (142) extends from the second rod section (12) into the first rod section (11).

7. The central rod (1) according to claim 6, wherein, The cooling chamber (142) is a closed chamber; or, a medium filling port (1421) communicating with the cooling chamber (142) is provided at one end of the first rod section (11) far from the second rod section (12).

8. The central rod (1) according to any one of claims 4-7, wherein, The anti-rotation groove (112) is provided on the first rod section (11).

9. The central rod (1) according to any one of claims 4 - 8, wherein, A positioning groove (822) is provided on the second rod section (12), and the positioning groove (822) is adapted to cooperate with a magnetic part (3) installed on the magnetic part installation area (122) to limit the rotation of the magnetic part (3) relative to the central rod (1).

10. The central rod (1) according to any one of claims 4-9, wherein, The central rod (1) further includes a rod ring structure (15), the outer diameter of the rod ring structure (15) is larger than the outer diameter of the second rod section (12), the rod ring structure (15) is used to axially stop the magnetic part (3) on the central rod (1), and the central rod wire outlet through hole (16) is formed on the side of the rod ring structure (15) facing away from the second rod section (12).

11. The central rod (1) according to claim 10, wherein, A first thread section (171) is provided at one end of the first rod section (11) far from the second rod section (12), and the first thread section (171) is used for screwing with a fastening nut (702), a second thread section (172) is provided at one end of the second rod section (12) far from the first rod section (11), and the second thread section (172) is used for screwing with a limit nut (18), and the magnetic part installation area (122) is located between the rod ring structure (15) and the second thread section (172).

12. A stator (100), wherein, Comprising: The central rod (1) according to any one of claims 1-11; and A position sensor (800), and the position sensor (800) is installed in the sensor installation area (141).

13. The stator (100) according to claim 12, wherein, The stator (100) further includes: A cable (2) passing through the central rod wire outlet through-hole (16), with a part of the cable (2) located inside the hollow cavity of the central rod (1) and a part located outside the central rod (1); and A magnetic member (3) sleeved on the magnetic member mounting area (122) of the central rod (1), with a part of the cable (2) disposed on the outer periphery of the magnetic member (3), and the magnetic member (3) includes winding lead ends which extend outwards to the outer periphery of the magnetic member (3) and are adapted to connect to the cable (2).

14. The stator (100) according to claim 13, wherein, The central rod (1) includes a first rod segment (11) and a second rod segment (12), the sensor mounting area (141) is located on the first rod segment (11), the magnetic member mounting area (122) is located on the second rod segment (12), the hollow cavity includes a wire routing cavity (13) inside the first rod segment (11), the central rod wire outlet through-hole (16) communicates with the wire routing cavity (13), and the stator (100) further includes a wire outlet device (4) disposed in the wire routing cavity (13) to fix the cable (2).

15. The stator (100) according to claim 14, wherein, One axial end of the wire outlet device (4) has a wire threading hole inlet, and the other axial end has a wire threading hole outlet. The cable (2) is adapted to pass through the wire threading hole inlet and the wire threading hole outlet. There are multiple wire threading hole outlets, and the multiple wire threading hole outlets are spaced along the axis of the wire outlet device (4), and the wire threading hole outlets are adapted to be aligned with the corresponding central rod wire outlet through-holes (16).

16. The stator (100) according to claim 15, wherein, The wire threading hole inlets and the wire threading hole outlets are in one-to-one correspondence, and a cable channel (41) for fixing the corresponding cable (2) is formed between the wire threading hole inlet and the corresponding wire threading hole outlet. The diameter difference between the cable channel (41) and the outer diameter of the cable (2) to be fixed is not greater than 5 mm.

17. The stator (100) according to any one of claims 13 - 16, wherein, The magnetic member (3) includes: An iron core (32) including a plurality of wire winding grooves distributed along the axial direction of the iron core (32); A winding (31) wound in the wire winding grooves, with the outer end lead of the winding (31) being the winding lead end, and the winding lead end is connected to the cable (2); The cable (2) includes a phase wire portion (23) and a wiring portion (22) connected to each other. The phase wire portion (23) is located inside the hollow cavity and passes through the central rod wire outlet through-hole (16). The winding (31) has a plurality of in-phase winding lead ends, and the plurality of in-phase winding lead ends are connected in series through the wiring portion (22).

18. The stator (100) according to claim 17, wherein, There are multiple in-phase windings (31), and the wiring portion (22) is in multiple segments. The winding lead ends of adjacent and in-phase windings (31) are connected in series through the corresponding wiring portion (22).

19. The stator (100) according to claim 17 or 18, wherein, A plurality of wire outlet notches (322) are provided on the iron core (32), the plurality of wire outlet notches (322) are arranged at intervals along the circumferential direction of the iron core (32), at least part of the wiring portion (22) is adapted to be embedded in the wire outlet notches (322), a plurality of reinforcing ribs (321) are provided at the bottom end of the iron core (32), and the plurality of reinforcing ribs (321) are arranged at intervals to form an incoming wire through port (3212), and the wiring portion (22) is adapted to be connected to the wiring portions (22) of other phases through the corresponding wire outlet notches (322) and the incoming wire through port (3212).

20. The stator (100) according to any one of claims 13 - 19, wherein, The stator (100) further includes a limit pad (5), the limit pad (5) is sleeved on the central rod (1), and the limit pad (5) cooperates with the central rod wire outlet through hole (16) to fix the cable (2); The central rod (1) further includes a first rod section (11), a second rod section (12) and a rod ring structure (15), the first rod section (11) and the second rod section (12) are separated by the rod ring structure (15), a part of the central rod wire outlet through hole (16) is opened on the first rod section (11), and another part is opened on the rod ring structure (15), the limit pad (5) is sleeved on the first rod section (11), and the limit pad (5) and the central rod wire outlet through hole (16) enclose a wiring limit hole, and the cable (2) is adapted to pass through the wiring limit hole.

21. The stator (100) according to any one of claims 13-20, wherein, One end of the cable (2) far from the magnetic member (3) passes out of the central rod (1) and is connected with a plug connector (21).

22. An electromagnetic shock absorber (1000), wherein, Comprising: The stator (100) according to any one of claims 12-21; A rotor (600), the rotor (600) has a rotor cavity, the stator (100) is arranged in the rotor cavity, the rotor (600) can axially move relative to the stator (100), and the rotor (600) includes: A housing (601); A rotor magnet (602), the rotor magnet (602) is installed on the inner wall of the housing (601), the inner side of the rotor magnet (602) forms the rotor cavity, and the rotor magnet (602) is sleeved on the outer periphery of the magnetic member (3) installed on the central rod (1); A guide post (6032), the guide post (6032) is connected to the housing (601), the guide post (6032) is also used for connecting with the lower swing arm of the vehicle (10000), the hollow cavity inside the central rod (1) includes a guide cavity (19), and at least part of the guide post (6032) is adapted to extend into the guide cavity (19) and can axially move along the central rod (1).

23. The electromagnetic shock absorber (1000) according to claim 22, wherein, The electromagnetic shock absorber (1000) further includes a first sliding bearing (6041) and a second sliding bearing (6042). The housing (601) has a housing hole (6012). The center rod (1) passes through the housing hole (6012) to partially extend outside the housing (601). The first sliding bearing (6041) is disposed between the housing hole (6012) and the outer peripheral surface of the center rod (1). The second sliding bearing (6042) is disposed between the outer peripheral surface of the guide post (6032) and the wall of the hollow cavity.

24. The electromagnetic shock absorber (1000) according to claim 22 or 23, wherein, The mover (600) further includes a buffer pad (605). The buffer pad (605) is sleeved on the guide post (6032) and located outside the end of the center rod (1).

25. The electromagnetic shock absorber (1000) according to any one of claims 22-24, wherein, The housing (601) is provided with a positioning hole (6011). A positioning pin is adapted to pass through the positioning hole (6011) and cooperate with an anti-rotation groove (112) axially extending on the center rod (1) to limit the rotation of the housing (601) relative to the center rod (1).

26. The electromagnetic shock absorber (1000) according to any one of claims 22-25, wherein, The electromagnetic shock absorber (1000) further includes a top mount (700). A spring (607) is disposed between the top mount (700) and the housing (601). The top mount (700) includes: an upper support member (701) adapted to be connected to the vehicle body. The center rod (1) is adapted to pass through the upper support member (701). The center rod (1) has an end shoulder (113). The upper support member (701) abuts against the end shoulder (113); a fastening nut (702) located on a side of the upper support member (701) facing away from the mover (600). The fastening nut (702) is adapted to be screwed with a first threaded section (171) on the center rod (1). The upper support member (701) is clamped between the fastening nut (702) and the end shoulder (113); a cooler (608) fixed on the center rod (1). A cooling chamber (142) inside the center rod (1) is adapted to exchange heat with the cooler (608).

27. A vehicle (10000), wherein, including a suspension system (2000). The suspension system (2000) includes the electromagnetic shock absorber (1000) according to any one of claims 22-26.

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