CN117895721A - Center rod, stator, linear motor, electromagnetic shock absorber, suspension system, and vehicle - Google Patents
Center rod, stator, linear motor, electromagnetic shock absorber, suspension system, and vehicle Download PDFInfo
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- CN117895721A CN117895721A CN202311867740.0A CN202311867740A CN117895721A CN 117895721 A CN117895721 A CN 117895721A CN 202311867740 A CN202311867740 A CN 202311867740A CN 117895721 A CN117895721 A CN 117895721A
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Abstract
The invention discloses a center rod, a stator, a linear motor, an electromagnetic shock absorber, a suspension system and a vehicle, wherein an anti-rotation groove is arranged on the center rod and is suitable for being matched with a rotor to limit the rotor to rotate relative to the center rod; the outer side surface of the rod peripheral wall of the central rod is also provided with a sensor mounting area for mounting a sensor. According to the central rod provided by the embodiment of the invention, the central rod can be applied to the electromagnetic shock absorber, and the rotation of the rotor relative to the central rod can be reduced by arranging the anti-rotation groove and the sensor mounting area on the central rod, so that the operation reliability of the electromagnetic shock absorber is improved, and the sensor can be fixed, so that the influence on the detection accuracy caused by arranging the sensor on the rotor is avoided.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a center rod, a stator, a linear motor, an electromagnetic shock absorber, a suspension system and a vehicle.
Background
In the related art, the electromagnetic shock absorber comprises a shell, a stator and a rotor, wherein the stator and the rotor are arranged in the shell, and in the prior art, the position relationship between the stator and the rotor cannot be effectively detected, so that the working performance of the electromagnetic shock absorber is affected.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a center rod that can be used to fix a sensor, so as to facilitate the detection accuracy of the sensor.
The invention also provides a stator.
The invention also provides a linear motor. The invention also provides an electromagnetic shock absorber.
The invention also provides a suspension system.
The invention further provides a vehicle.
According to the central rod provided with the anti-rotation groove, the anti-rotation groove is suitable for being matched with the rotor to limit the rotor to rotate relative to the central rod; the outer side surface of the rod peripheral wall of the central rod is also provided with a sensor mounting area for mounting a sensor. According to the central rod provided by the embodiment of the invention, the central rod can be applied to the electromagnetic shock absorber, and the rotation of the rotor relative to the central rod can be reduced by arranging the anti-rotation groove and the sensor mounting area on the central rod, so that the operation reliability of the electromagnetic shock absorber is improved, and the sensor can be fixed, so that the influence on the detection accuracy caused by arranging the sensor on the rotor is avoided.
In some embodiments, the inside of the central rod is provided with a hollow cavity, and a central rod outlet through hole communicated with the hollow cavity is formed in the rod peripheral wall of the central rod. In some embodiments, the sensor mounting area includes at least a sensor positioning plane having a sensor securing structure disposed thereon.
In some embodiments, the central rod includes a first rod section and a second rod section, the sensor mounting region being located on the first rod section, the second rod section having a magnetic mounting region located thereon.
In some embodiments, the central rod outlet through hole is located between the sensor mounting region and the magnetic piece mounting region in an axial direction of the central rod.
In some embodiments, the interior of the central rod has a cooling chamber adapted to contain a cooling medium, the cooling chamber extending from the second rod segment into the first rod segment.
In some embodiments, the cooling chamber is a closed chamber; or, one end of the first rod section, which is far away from the second rod section, is provided with a medium filling port communicated with the cooling chamber.
In some embodiments, the first pole segment is provided with the anti-rotation slot and/or the second pole segment is provided with a detent adapted to cooperate with a magnetic member mounted on the magnetic member mounting region to limit rotation of the magnetic member relative to the central pole.
In some embodiments, the anti-rotation slot extends in an axial direction of the central rod and/or the detent slot extends in an axial direction of the central rod.
In some embodiments, the central rod further comprises a rod ring structure having an outer diameter greater than an outer diameter of the second rod segment, the rod ring structure for stopping the magnetic member in an axial direction of the central rod.
In some embodiments, the central rod outlet through hole is open on a side of the rod ring structure facing away from the second rod segment.
In some embodiments, an end of the first pole segment remote from the second pole segment is provided with a first thread segment for threaded connection with a fastening nut, an end of the second pole segment remote from the first pole segment is provided with a second thread segment for threaded connection with a spacing nut, and the magnetic member mounting region is located between the pole ring structure and the second thread segment.
A stator according to an embodiment of the invention comprises a position sensor and a center rod according to an embodiment of the invention, the position sensor being mounted to the sensor mounting area.
According to the stator provided by the embodiment of the invention, the center rod can be applied to the electromagnetic shock absorber by arranging the center rod, and the sensor mounting area is arranged on the center rod and can be used for fixing the sensor, so that the sensor is prevented from being arranged on the rotor to influence the detection accuracy.
In some embodiments, the stator further comprises a cable threaded through the central rod outlet through hole, the cable being located partially within the hollow cavity inside the central rod and partially outside the central rod; the magnetic piece is sleeved on the magnetic piece installation area of the central rod, the cable is partially arranged on the periphery of the magnetic piece, the magnetic piece comprises a winding wire end, and the winding wire end is led out to the periphery of the magnetic piece and is suitable for being connected with the cable.
In some embodiments, the central rod comprises a first rod section and a second rod section, the sensor mounting area is located on the first rod section, the magnetic element mounting area is located on the second rod section, the hollow cavity comprises a wire cavity located inside the first rod section, the central rod wire outlet through hole is communicated with the wire cavity, and the stator further comprises a wire outlet device which is arranged in the wire cavity to fix the cable.
In some embodiments, one axial end of the wire outlet device is provided with a threading hole inlet, the other axial end of the wire outlet device is provided with a threading hole outlet, the cable is suitable for penetrating through the threading hole inlet and the threading hole outlet, the threading hole outlets are multiple, the threading hole outlets are arranged at intervals along the axis of the wire outlet device, and the threading hole outlets are suitable for being aligned with the corresponding center rod wire outlet through holes.
In some embodiments, the threading hole inlets and the threading hole outlets are in one-to-one correspondence, and a cable channel for fixing a corresponding cable is formed between the threading hole inlets and the corresponding threading hole outlets, and the difference between the diameter of the cable channel and the outer diameter of the fixed cable is not greater than 5mm.
In some embodiments, the magnetic member includes a core including a plurality of wire winding slots distributed along an axial direction of the core; the winding is wound in the winding groove, the outer end wire head of the winding is the winding wire head, and the winding wire head is connected with the cable.
In some embodiments, the cable includes a phase wire section and a wire distribution section connected to each other, the phase wire section being located in the hollow cavity and passing through the central rod outlet through hole, the winding having a plurality of winding heads in phase, the winding heads in phase being connected in series by the wire distribution section.
In some embodiments, the plurality of windings in phase are provided, the wiring portions are multi-stage, and winding heads of adjacent windings in phase are connected in series through corresponding wiring portions.
In some embodiments, the iron core is provided with a plurality of wire outlet slots, a plurality of wire outlet slots are arranged at intervals along the circumferential direction of the iron core, at least part of the wire distribution part is suitable for being embedded in the wire outlet slots, the bottom end part of the iron core is provided with a plurality of reinforcing ribs, the plurality of reinforcing ribs are arranged at intervals to form a wire inlet through hole, and the wire distribution part is suitable for being connected with wire distribution parts of other phases through the wire outlet slots and the wire inlet through holes at corresponding positions.
In some embodiments, the stator further comprises a limit pad sleeved on the central rod, and the limit pad cooperates with the central rod outlet through hole to fix the cable.
In some embodiments, the central rod further comprises a first rod section, a second rod section and a rod ring structure, the first rod section and the second rod section are separated by the rod ring structure, one part of the central rod outlet through hole is formed in the first rod section, the other part of the central rod outlet through hole is formed in the rod ring structure, the limiting pad is sleeved on the first rod section, the limiting pad and the central rod outlet through hole enclose a wiring limiting hole, and the cable is suitable for being penetrated out from the wiring limiting hole.
In some embodiments, an end of the cable remote from the magnetic element passes out of the central rod and is connected with a plug.
The linear motor according to the embodiment of the invention comprises the stator according to the embodiment of the invention.
The electromagnetic shock absorber comprises a rotor and a stator according to the embodiment of the invention; the mover has a mover cavity, the stator is disposed within the mover cavity, and the mover is movable axially relative to the stator.
According to the electromagnetic shock absorber provided by the embodiment of the invention, the stator is arranged, the central rod can be applied to the electromagnetic shock absorber, and the sensor mounting area is arranged on the central rod and can be used for fixing the sensor, so that the influence on the detection accuracy caused by the fact that the sensor is arranged on the rotor is avoided.
In some embodiments, the mover includes a housing; the rotor magnet is arranged on the inner wall of the shell, the inner side of the rotor magnet forms the rotor cavity, and the rotor magnet is sleeved on the periphery of a magnetic piece arranged on the center rod; the guide post, the guide post is connected the casing, the guide post still is used for being connected with the lower swing arm of vehicle, the inside cavity of center pole includes the guide chamber, at least part the guide post is suitable for stretching into the guide intracavity and can follow the axial displacement of center pole.
In some embodiments, the electromagnetic shock absorber further comprises a first sliding bearing and a second sliding bearing, the housing having a housing hole through which the center rod passes to partially protrude outside the housing, the first sliding bearing being disposed between the housing hole and an outer peripheral surface of the center rod, the second sliding bearing being disposed between the outer peripheral surface of the guide post and a cavity wall of the hollow cavity.
In some embodiments, the mover further includes a cushion pad sleeved on the guide post and located outside the end of the center rod.
In some embodiments, the housing is provided with a locating hole, and a locating pin is adapted to pass through the locating hole and cooperate with an axially extending anti-rotation slot on the central rod to limit rotation of the housing relative to the central rod.
In some embodiments, the electromagnetic shock absorber further comprises a tower top, a spring is arranged between the tower top and the shell, and the tower top comprises: an upper support adapted to be connected to a vehicle body, the central rod being adapted to pass through the upper support, the central rod having an end shoulder against which the upper support rests; the fastening nut is positioned on one side of the upper support piece, which is away from the rotor, and is suitable for being in threaded connection with the first thread section on the central rod, and the upper support piece is clamped between the fastening nut and the end shaft shoulder; and a cooler secured to the central rod, the cooling chamber inside the central rod being adapted to exchange heat with the cooler.
The suspension system according to the embodiment of the invention comprises the electromagnetic shock absorber according to the embodiment of the invention. Through setting up foretell electromagnetic damper, the center pole can be applied to electromagnetic damper, through setting up the sensor installation district on the center pole, can be used for fixing the sensor, avoids setting up the sensor on the active cell and influences its detection accuracy.
The vehicle according to the embodiment of the invention comprises the electromagnetic shock absorber according to the embodiment of the invention, the center rod can be applied to the electromagnetic shock absorber by arranging the suspension system, and the sensor can be fixed by arranging the sensor mounting area on the center rod, so that the sensor is prevented from being arranged on the rotor to influence the detection accuracy of the sensor.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a cross-sectional view of an electromagnetic shock absorber according to an embodiment of the present invention;
fig. 2 is an enlarged view according to fig. 1 at a;
Fig. 3 is an enlarged view according to fig. 1 at B;
FIG. 4 is a cross-sectional view of a center rod according to an embodiment of the present invention;
FIG. 5 is a perspective view of a center rod according to an embodiment of the present invention;
FIG. 6 is a partial cross-sectional view of a center rod according to an embodiment of the present invention;
FIG. 7 is an enlarged partial cross-sectional view of a center rod according to an embodiment of the present invention;
FIG. 8 is a schematic view of an assembly of a center rod and a magnetic member according to an embodiment of the present invention;
FIG. 9 is a schematic view of an assembly of a center rod and a housing according to an embodiment of the present invention;
fig. 10 is a perspective view of an outlet device according to an embodiment of the present invention;
FIG. 11 is a schematic illustration of a suspension system according to an embodiment of the present invention;
fig. 12 is a schematic view of a vehicle according to an embodiment of the invention.
Reference numerals:
a vehicle 10000;
suspension system 2000, electromagnetic shock absorber 1000;
stator 100, mover 600, tower top 700, sensor 800;
the central rod 1, the first rod section 11, the first wire outlet half hole 111, the anti-rotation groove 112, the end shaft shoulder 113, the second rod section 12, the magnetic part mounting area 122, the wire cavity 13, the rod peripheral wall 14, the sensor mounting area 141, the sensor positioning plane 1411, the sensor fixing structure 1412, the cooling chamber 142, the medium filling port 1421, the rod ring structure 15, the second wire outlet half hole 152, the central rod wire outlet through hole 16, the first thread section 171, the second thread section 172, the limit nut 18 and the guide cavity 19;
A cable 2, a plug connector 21, a wiring portion 22, and a phase line portion 23;
the magnetic part 3, the winding 31, the iron core 32, the reinforcing rib 321, the wire harness fixing groove 3211, the wire inlet through-port 3212 and the wire outlet notch 322;
the wire outlet device 4 and the cable passage 41;
a limit pad 5;
a housing 601, a positioning hole 6011, a housing hole 6012, a mover magnet 602, a yoke 603, a yoke body 6031, a guide post 6032, a first slide bearing 6041, a second slide bearing 6042, a cushion 605, a dust cover 606, a spring 607, and a cooler 608;
an upper support 701, a 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
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The center pole 1, the stator 100, the electromagnetic shock absorber 1000, the suspension system 2000, and the vehicle 10000 according to the embodiment of the present invention are described below with reference to fig. 1 to 12.
According to the center rod 1 of the embodiment of the invention, the center rod 1 is provided with the anti-rotation groove 112, the anti-rotation groove 112 is suitable for being matched with the rotor 600 to limit the rotor 600 to rotate relative to the center rod 1, and by arranging the anti-rotation groove 112, the rotation of the rotor 600 relative to the center rod 1 can be reduced, and the operation reliability of the electromagnetic damper 1000 can be improved. The outer side of the rod peripheral wall 14 of the central rod 1 is also provided with a sensor mounting region 141, the sensor mounting region 141 being usable for mounting the sensor 800. The rod peripheral wall 14 is of an annular solid structure and has a certain thickness, and a hollow cavity is formed in the inner side surface of the rod peripheral wall 14.
That is, the sensor 800 may be mounted on the center rod 1, and the position of the center rod 1 is fixed when applied to the electromagnetic shock absorber 1000, so that the sensor 800 does not move.
Alternatively, the sensor 800 may be a displacement sensor, a speed sensor, an acceleration sensor, a temperature sensor, or the like.
In the related art, a sensor is arranged on a rotor, and the rotor can drive the sensor to move when moving, so that the detection accuracy of the sensor is affected. As distinguished from the closest related art, the center rod 1 of the present application may be applied to the stator 100 of the electromagnetic shock absorber 1000, and when the sensor 800 is mounted to the sensor mounting area 141 of the center rod 1, the position of the sensor 800 is fixed, and the center rod 1 is further provided with the anti-rotation groove 112, which can reduce the probability of the rotor 600 rotating relative to the center rod 1, and is beneficial to improving the accuracy of the detection of the sensor 800.
In some alternative embodiments, sensor 800 mounted to sensor mounting area 141 does not include a signal output line, and sensor 800 includes a bracket and a magnet mounted to the bracket, the bracket mounted to sensor mounting area 141.
In other alternative embodiments, the sensor 800 may include a signal output line, for example, when the sensor 800 is a temperature sensor, the signal output line may be through the central rod outlet hole 16 and be accommodated in the hollow cavity, the hollow cavity of the central rod 1 may protect the signal output line of the sensor 800, and when the mover 600 of the electromagnetic shock absorber 1000 moves linearly relative to the central rod 1, since the signal output line of the sensor 800 passes through the central rod outlet hole 16 and is accommodated in the hollow cavity, the risk of the signal output line being squeezed and damaged may be reduced.
According to the center rod 1 of the embodiment of the invention, the center rod 1 can be applied to the electromagnetic shock absorber 1000, and by arranging the anti-rotation groove 112 and the sensor mounting area 141 on the center rod 1, the rotation of the rotor 600 relative to the center rod 1 can be reduced, the operation reliability of the electromagnetic shock absorber 1000 can be improved, and the sensor 800 can be fixed, so that the influence on the detection accuracy caused by arranging the sensor 800 on the rotor 600 can be avoided.
As shown in fig. 1 to 4, according to the embodiment of the present invention, a central rod 1 has a hollow cavity inside, and a central rod outlet through hole 16 is formed in a rod peripheral wall 14 of the central rod 1, and the central rod outlet through hole 16 communicates with the hollow cavity.
As shown in fig. 4-7, in some embodiments, the sensor mounting region 141 includes at least a sensor positioning plane 1411, with a sensor mounting structure 1412 disposed on the sensor positioning plane 1411. The sensor positioning plane 1411 can enable the sensor 800 to be placed more stably, so that the stability and reliability of the sensor 800 in detecting operation are improved; meanwhile, the sensor 800 can be fixed on the sensor positioning plane 1411 through the sensor fixing structure 1412, so that the sensor 800 is not easy to fall off, and the stability and reliability of connection are improved. When the sensor 800 includes a bracket and a magnet, the bracket may be fixed to the sensor positioning plane 1411 by the sensor fixing structure 1412, and the magnet may be attached to the bracket.
Alternatively, the sensor fixation structure 1412 may be screw holes, rivet holes, or the like.
Sensor locating features may also be provided on the sensor locating plane 1411 to locate the sensor 800 in an accurate position prior to securing the sensor 800. Alternatively, the sensor positioning structure may be a positioning hole, a positioning pin, or the like.
As shown in fig. 4 to 7, the center rod 1 is an annular cross-sectional rod, 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 recessing the outer side of the rod peripheral wall 14 toward the inner side of the rod peripheral wall 14. Alternatively, the sensor positioning plane 1411 is parallel to the axis of the central rod 1.
As shown in fig. 1-5, in some embodiments, the center pole 1 includes a first pole segment 11 and a second pole segment 12, with a sensor mounting region 141 located on the first pole segment 11 and a magnetic member mounting region 122 located on the second pole segment 12. The sensor 800 is mounted on the first pole segment 11 of the central pole 1 and the magnetic member 3 is mounted on the second pole segment 12 of the central pole 1, so that interference between the sensor 800 and the magnetic member 3 can be reduced.
As shown in fig. 4, in some embodiments, the center rod outlet through hole 16 is located between the sensor mounting region 141 and the magnetic piece mounting region 122 in the axial direction of the center rod 1. In combination with the above embodiment, the first pole segment 11 and the second pole segment 12 are sequentially disposed along the axial direction of the center pole 1, the sensor mounting region 141 is disposed on the first pole segment 11, the magnetic member mounting region 122 is disposed on the second pole segment 12, and the sensor 800 is mounted on the sensor mounting region 141, the magnetic member 3 is mounted on the magnetic member mounting region 122 of the center pole 1, the center pole outlet through hole 16 is disposed between the sensor mounting region 141 and the magnetic member mounting region 122, that is, the sensor 800 is separated from the magnetic member 3 in the axial direction of the center pole 1, and the center pole outlet through hole 16 is disposed between the sensor 800 and the magnetic member 3, whereby the electrical connection wire of the magnetic member 3 can be close to the center pole outlet through hole 16, thereby reducing the length of the electrical connection wire and saving the cost. When the sensor 800 has a signal transmission line, the signal transmission line of the sensor 800 may be located close to the central rod outlet through hole 16, thereby reducing the length of the signal transmission line and saving costs.
As shown in fig. 4, 6 and 7, in some embodiments, the interior of the central rod 1 has a cooling chamber 142, the cooling chamber 142 being located between the outer and inner sides of the rod peripheral wall 14, the cooling chamber 142 being capable of containing a cooling medium therein, the cooling chamber 142 extending from the second rod segment 12 into the first rod segment 11. The cooling chamber 142 may cool the center rod 1, whereby the cooling chamber 142 may cool the entire center rod 1, as the cooling chamber 142 extends from the second rod section 12 to the first rod section 11. When the center pole 1 is applied to the electromagnetic absorber 1000, the cooling chamber 142 can cool the inside of the electromagnetic absorber 1000, thereby improving the reliability and safety of the electromagnetic absorber 1000.
As shown in fig. 6, alternatively, a single-layer cooling structure may 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 inside of the center rod 1 may include a plurality of cooling chambers 142, and the plurality of cooling chambers 142 may be disposed so as to be dispersed around the axis of the center rod 1, for example, the plurality of cooling chambers 142 may all be located in the same circumferential direction of the center rod 1.
Alternatively, a multi-layered cooling structure may be provided between the outer side surface and the inner side surface of the lever peripheral wall 14, and the inside of the center lever 1 may include a plurality of cooling chambers 142, and the plurality of cooling chambers 142 may be layered in the radial direction of the center lever 1, thereby facilitating the promotion of the cooling effect.
As shown in fig. 5 and 6, in some embodiments, the cooling chamber 142 is a closed chamber, which can reduce the probability of the cooling medium of the center rod 1 overflowing outwards, thereby improving the safety and reliability of the electromagnetic shock absorber 1000.
As shown in fig. 5 and 6, in some alternative embodiments, a media filler port 1421 is provided at an end of the first pole segment 11 remote from the second pole segment 12, where the media filler port 1421 may be in communication with the cooling chamber 142, and the media filler port 1421 may be configured to pass through a cooling medium, such that the cooling medium in the cooling chamber 142 may exchange heat with the outside (e.g., air) and thereby remove heat.
Alternatively, the medium charging port 1421 may include a plurality of ports, one of which may be an inlet port for a cooling medium, which may be added into the cooling chamber 142; the other of the two may serve as an outlet for the cooling medium, and the cooling medium may be discharged to the outside.
As shown in fig. 1, 5 and 9, in some embodiments, the first rod segment 11 is provided with an anti-rotation groove 112, and by providing the anti-rotation groove 112, the rotation of the mover 600 relative to the central rod 1 can be reduced, and the operational reliability of the electromagnetic damper 1000 can be improved.
As shown in fig. 5 and 8, in some embodiments, the second rod section 12 is provided with a positioning slot 822, the positioning slot 822 can be matched with the magnetic piece 3 installed on the magnetic piece installation area 122 to limit the magnetic piece 3 to rotate relative to the central rod 1, and by setting the positioning slot 822, the accuracy of matching the magnetic piece 3 with the central rod 1 and the convenience of installation can be improved, so that the operation reliability of the electromagnetic shock absorber 1000 is further improved.
As shown in fig. 1, 5, and 9, in some embodiments, the anti-rotation slots 112 extend in the axial direction of the central rod 1. The anti-rotation groove 112 extends in the axial direction of the first pole section 11 of the center pole 1, and in the radial direction of the pole peripheral wall 14, the anti-rotation groove 112 is formed on the outer side surface of the pole peripheral wall 14. By extending the rotation preventing groove 112 by a certain length in the axial direction of the center rod 1, the rotation limiting effect of the rotation preventing groove 112 can be improved.
As shown in fig. 5 and 8, in some embodiments, the locating slot 822 extends in the axial direction of the central rod 1. The positioning groove 822 extends in the axial direction of the second pole section 12 of the center pole 1, and in the radial direction of the pole peripheral wall 14, the positioning groove 822 is formed on the outer side surface of the pole peripheral wall 14. By extending the positioning groove 822 by a certain length in the axial direction of the center rod 1, the rotation limiting effect of the positioning groove 822 can be improved.
As shown in fig. 5, 6 and 8, the magnetic member 3 includes a winding 31 and an iron core 32, and the magnetic member 3 is composed of a plurality of windings 31 and iron cores 32, and is stacked and sleeved on the central rod 1 by one layer of windings 31 and one layer of iron cores 32, so that the design is convenient for manufacturing the iron cores 32 and winding the windings 31. The iron core 32 is in transition fit with the central rod 1, a rotation limiting structure 8 is arranged between the iron core 32 and the central rod 1, and the rotation limiting structure 8 is used for limiting the iron core 32 to rotate around the axis of the central rod 1. The rotation limiting structure 8 includes a rotation limiting pin 823 and a rotation limiting slot 82, the rotation limiting slot 82 includes a first rotation limiting groove 821 formed on the iron core 32 and a positioning slot 822 formed on the center rod 1, the first rotation limiting groove 821 formed on the iron core 32 is a semicircular recess and can be matched with the positioning slot 822 formed on the outer side of the lower portion of the center rod 1, the rotation limiting pin 823 is inserted between the first rotation limiting groove 821 and the second rotation limiting groove, the iron core 32 is limited to rotate around the center shaft 1 in the assembly process, the winding 31 is guaranteed to be consistent with the design state, and further, stability of connection between the iron core 32 and the center rod 1 is improved, the whole magnetic piece 3 is guaranteed to be fixed on the center rod 1 according to the design state, and rigidity of the stator 100 and stability of operation of the electromagnetic shock absorber 1000 can be improved. For example, the assembly process of the core rod 1 and the core 32 may be that the limiting pin 823 is firstly installed in the positioning slot 822 of the core rod 1, the limiting pin 823 protrudes out of the positioning slot 822 along the radial direction of the core rod 1, viscous substances can be adopted between the limiting pin 823 and the core rod 1 to be primarily fixed, then the wound layers of core 32 are sequentially pressed and assembled outside the core rod 1, at this time, the protruding portion of the limiting pin 823 can play a good guiding role on the assembly of the core 32, the position accuracy of the windings 31 of each layer is guaranteed, the press-assembling of all layers of core 32 is finally completed, the core rod 1 and the core 32 of each layer of core 32 are in interference fit to guarantee the tightness of the fit, and the limiting pin 823 after the assembly is left between the core rod 1 and the core 32. In operation, since the rotation limiting pin 823 limits the circumferential rotation of the core 32, unsafe factors caused by the circumferential rotation of the winding 31 are avoided.
As shown in fig. 3 and 5, in some embodiments, the central rod 1 further comprises a rod ring structure 15, the rod ring structure 15 having an outer diameter larger than the outer diameter of the second rod segment 12, the rod ring structure 15 being capable of stopping the magnetic member 3 in the axial direction of the central rod 1. The rod ring structure 15 is arranged between the first rod segment 11 and the second rod segment 12, the first rod segment 11, the rod ring structure 15 and the second rod segment 12 being arranged in sequence in the axial direction of the central rod 1. Illustratively, the magnetic member 3 is mounted on the magnetic member mounting region 122 of the second pole segment 12, and the pole ring structure 15 is located on the upper side of the magnetic member 3 (as shown in fig. 1), and the pole ring structure 15 can limit axial movement of the magnetic member 3 to avoid movement of the magnetic member 3 to the first pole segment 11.
As shown in fig. 5, 6 and 7, in some embodiments, the central rod outlet through hole 16 is located on a side of the rod ring structure 15 facing away from the second rod segment 12. The central rod outlet through holes 16 may be formed only in the first rod section 11, may be formed only in the rod ring structure 15, or may be formed in the first rod section 11 in one part and the rod ring structure 15 in the other part of each central rod outlet through hole 16. For example, the rod ring structure 15 has a certain thickness along the axial direction of the central rod 1, each central rod outlet through hole 16 is partially opened on the rod ring structure 15, and the central rod outlet through holes 16 do not completely penetrate along the thickness direction of the rod ring structure 15; in the radial direction of the central rod 1, the outer diameter of the rod ring structure 15 is larger than the outer diameter of the second rod section 12, the central rod outlet through hole 16 protrudes in the radial direction of the central rod 1 relative to the second rod section 12, and the rod ring structure 15 can guide and protect electrical connectors, such as protecting wire bundles of signal output wires.
As shown in fig. 1, 2, 5 and 6, in some embodiments, the end of the first pole segment 11 remote from the second pole segment 12 is provided with a first threaded segment 171, the first threaded segment 171 may be threadably coupled to the fastening nut 702, the end of the second pole segment 12 remote from the first pole segment 11 is provided with a second threaded segment 172, the second threaded segment 172 may be threadably coupled to the stop nut 18, and the magnetic member mounting region 122 is located between the pole ring structure 15 and the second threaded segment 172. The limit nut 18 can be sleeved on the second threaded section 172 of the central rod 1, the limit nut 18 is installed at the lower end of the magnetic piece 3, the rod ring structure 15 is located at the upper end of the magnetic piece 3, and the limit nut 18 and the rod ring structure 15 cooperate together to limit the axial movement of the magnetic piece 3.
As shown in fig. 1, the stator 100 according to the embodiment of the present invention includes a position sensor 800 and a center rod 1 according to the embodiment of the present invention, and the position sensor 800 is mounted to the sensor mounting area 141. The position sensor 800 may serve to precisely detect the relative position between the mover 600 and the stator 100, thereby achieving precise control.
According to the stator 100 of the embodiment of the present invention, by providing the above-mentioned center rod 1, the center rod 1 can be applied to the electromagnetic shock absorber 1000, and by providing the sensor mounting region 141 on the center rod 1, it can be used to fix the sensor 800, thereby avoiding the sensor 800 being disposed on the mover 600 to affect the detection accuracy thereof.
As shown in fig. 1-3, in some embodiments, the stator 100 further includes a cable 2 and a magnetic member 3. The cable 2 wears to locate the center pole through-hole 16, and part of cable 2 is located the cavity of center pole 1, and another part of cable 2 is located the outside of center pole 1, and magnetism spare 3 can be overlapped and establish on magnetism spare installation zone 122 of center pole 1, and part of cable 2 sets up in magnetism spare 3's periphery, and magnetism spare 3 includes the winding end of a thread, and the winding end of a thread can draw forth to magnetism spare 3's periphery, and the winding end of a thread can connect cable 2. That is, another portion of the cable 2 may be connected with the winding heads at the outer circumference of the magnetic member 3. Because the winding wire ends are connected with the cable 2 outside the magnetic piece 3, the tool operation space is not limited, the assembly space is enlarged, the assembly difficulty is reduced, the assembly efficiency can be improved, the mass production is facilitated, the problem is easily and intuitively found during subsequent overhaul, and the maintenance cost is reduced.
In the related art, the connection position of the winding wire end of the magnetic piece and the cable is positioned at the inner side of the magnetic piece, and the inner side outgoing wire is difficult to thread and assemble back and forth, wastes materials and occupies design space, and is inconvenient to detect because the connection position is positioned at the inner side of the magnetic piece. In this application, the winding end of a thread of magnetic part 3 can draw forth to the periphery of magnetic part 3, at the periphery connection 2 of magnetic part 3, has bigger assembly space, reduces the assembly degree of difficulty, can also improve assembly efficiency, is favorable to mass production and easy discovery problem directly perceivedly when follow-up overhauls.
As shown in fig. 1-3, in connection with the above-described embodiments, the center pole 1 comprises a first pole segment 11 and a second pole segment 12. In the axial direction of the central rod 1, the first rod section 11 is located at one side (upper side as shown in fig. 1) of the central rod outlet through hole 16, the second rod section 12 is located at the other side (lower side as shown in fig. 1) of the central rod outlet through hole 16, and the magnetic member 3 can be sleeved outside the second rod section 12. Specifically, the center rod outgoing line through hole 16 and the magnetic piece 3 are located at different positions of the center rod 1, interference with the magnetic piece 3 when the cable 2 passes through the center rod outgoing line through hole 16 is avoided, difficulty in inserting the center rod 1 by the cable 2 can be reduced, and assembly efficiency is improved. And the cable 2 can be extended downwards after penetrating out from the central rod outgoing line through hole 16 so as to be arranged around the periphery of the magnetic piece 3, and the wire waste caused by overlong winding when the cable 2 passes through the inner side of the magnetic piece 3 and is wound towards the outer side of the magnetic piece 3 can be avoided. It is of course also possible to pass the cable 2 from the outer periphery of the magnetic element 3 into the hollow cavity through the central rod outlet through hole 16, and the threading direction at the central rod outlet through hole 16 is not limited in the present invention, and the threading direction is described only for illustrating the structural features.
As shown in fig. 1-3, 4-6, and 10, in some embodiments, the center pole 1 includes a first pole segment 11 and a second pole segment 12, the sensor mounting region 141 is located on the first pole segment 11, the magnetic element mounting region 122 is located on the second pole segment 12, the hollow cavity includes a routing cavity 13 located inside the first pole segment 11, the center pole wire outlet hole 16 is in communication with the routing cavity 13, the stator 100 further includes a wire outlet device 4, the wire outlet device 4 is disposed in the routing cavity 13, the wire outlet device 4 can fix the cable 2, by disposing the wire outlet device 4, the movement of the cable 2 can be constrained, the shaking of the cable 2 in the routing cavity 13 can be reduced, and the wire outlet device 4 can also protect the cable 2, reducing the risk of the cable 2 being squeezed and scratched. The center rod outgoing line through hole 16 and the magnetic piece 3 are positioned at different positions of the center rod 1, so that interference with the magnetic piece 3 when the cable 2 passes out of the center rod outgoing line through hole 16 is avoided, the difficulty of inserting the cable 2 into the center rod 1 can be reduced, and the assembly efficiency is improved. And the cable 2 extends downwards after penetrating out from the central rod outgoing through hole 16 so as to be arranged around the periphery of the magnetic piece 3, so that the wire waste caused by overlong winding when the cable 2 passes through the inner side of the magnetic piece 3 and is wound towards the outer side of the magnetic piece 3 can be avoided.
In the related art, the cable is not fixed after penetrating into the central rod, and the inner diameter of the end part of the central rod is reduced, so that the wire is difficult to design, and the cable is easy to be extruded or scratched by peripheral parts in the movement process of the electromagnetic damper because the wire is not fixed at the inner side of the central rod, thereby influencing the safety of an electric system. In this application, through setting up the device 4 of being qualified for the next round of competitions, can retrain the activity of cable 2, reduce the rocking of cable 2 in walking line chamber 13 to the device 4 of being qualified for the next round of competitions can also protect cable 2, reduces the risk that cable 2 was extruded and lacerated.
As shown in fig. 10, in some embodiments, one axial end of the wire-out device 4 has a threading hole inlet, the other axial end of the wire-out device 4 has a threading hole outlet, the cable 2 may pass through the threading hole inlet and the threading hole outlet, the threading hole outlets are plural, the threading hole outlets are arranged at intervals along the axis of the wire-out device 4, and the threading hole outlets may be aligned with the corresponding center rod wire-out through holes 16, thereby reducing the probability that the cable 2 is extruded.
As shown in fig. 10, in some embodiments, the threading hole inlets and the threading hole outlets are in one-to-one correspondence, and a cable channel 41 for fixing the corresponding cable 2 is formed between the threading hole inlets and the corresponding threading hole outlets, and the difference between the diameter of the cable channel 41 and the outer diameter of the fixed cable 2 is not greater than 5mm. The cable channel 41 may secure the cable 2 and the threaded hole outlet of the cable channel 41 may be aligned with the corresponding center rod outlet through hole 16. By providing the cable channel 41 on the wire outlet device 4, the wire outlet direction of the wire 2 and the movement of the restraining cable 2 can be guided. Further, since the difference between the diameter of the cable passage 41 and the outer diameter of the fixed cable 2 is not more than 5mm, the fixing and restraining effects of the cable passage 41 on the cable 2 can be improved. Alternatively, the difference between the diameter of the cable channel 41 and the outer diameter of the fixed cable 2 may be 1mm, 2mm, 3mm, 4mm, 5mm, etc.
As shown in fig. 1, 3, 4 and 10, the wire outlet device 4 is exemplarily disposed in the wire cavity 13 of the center pole 1, and the cable passage 41 penetrates the wire outlet device 4 along an axial direction (up-down direction as shown in fig. 1) of the wire outlet device 4, and as shown in fig. 1 and 10, the cable passage 41 includes a threading hole inlet and a threading hole outlet, where the threading hole outlet is an outlet of the cable passage 41, and the threading hole outlet is aligned with the corresponding center pole wire outlet through hole 16. The threading hole inlet and the threading hole outlet are positioned at two ends of the cable channel 41 in the axial direction, the threading hole inlet is close to the upper end of the first rod section 11, the threading hole outlet is close to the upper end of the second rod section 12, the cable 2 enters the cable channel 41 from the threading hole inlet, the cable 2 passes out of the cable channel 41 from the threading hole outlet, and then the cable 2 passes out of the central rod outgoing through hole 16 corresponding to the threading hole outlet of the cable channel 41.
As shown in fig. 1-3 and 8, in some embodiments, the magnetic member 3 includes a core 32 and windings 31. The iron core 32 includes a plurality of winding grooves, and a plurality of winding grooves are distributed along the axial direction of the iron core 32, and the winding 31 can be wound in the winding grooves, and the winding grooves can be used for positioning and installing the winding 31. The outer end wire end of the winding 31 is the winding wire end, the winding wire end can be connected with the cable 2, the electric connection between the magnetic piece 3 and the cable 2 can be realized, and the winding wire end is the outer end wire end of the winding 31, so that the electric connection operation between the magnetic piece 3 and the cable 2 is conveniently carried out from the outer peripheral space of the magnetic piece 3, the operation space is large, and the operation space is convenient. By disposing the winding 31 in the winding groove, the structure of the magnetic member 3 can be simplified, and the internal structure of the magnetic member 3 can be made more compact.
As shown in fig. 1-3, in some embodiments, cable 2 includes phase wire portion 23 and wire portion 22, and phase wire portion 23 and wire portion 22 are connected to each other. The phase wire portion 23 is located in the wiring cavity 13 and a part of the phase wire portion 23 can pass out from the center pole outlet through hole 16, and the winding 31 has a plurality of winding heads of the same phase, and the plurality of winding heads of the same phase are connected in series by the wiring portion 22. That is, the wiring portion 22 is connected in series with the winding heads of the same phase, and the wiring portion 22 is connected to the phase line portion 23, thereby electrically connecting the cable 2 and the magnetic material 3. For example, the series connection of the plurality of winding heads in phase by the wiring portion 22 and the connection between the phase line portion 23 and the wiring portion 22 can be performed independently, respectively, which is advantageous in improving the assembly efficiency and realizing mass production. In combination with the above embodiment, the cable 2 includes the phase line portion 23 and the wiring portion 22, the phase line portion 23 is located in the wiring cavity 13 and a part of the phase line portion 23 can be led out from the central rod outlet through hole 16, the wiring portion 22 is disposed on the outer periphery of the magnetic member 3, and the wiring portion 22 is connected with the phase line portion 23, so that the phase line portion 23 can be connected with the wiring portion 22 on the outer periphery of the magnetic member 3, and assembly efficiency and convenience are improved. As shown in fig. 10, the outlet device 4 has a cable passage 41, the cable passage 41 can fix the phase wire portion 23, and the outlet of the cable passage 41 can be aligned with the corresponding center pole outlet through hole 16. By providing the cable duct 41 on the outlet device 4, the outlet direction of the phase wire portion 23 can be guided and the phase wire portion 23 can be restrained from moving. The outlet device 4 may extend in the axial direction of the central rod 1, and the largest outer diameter of the outlet device 4 is smaller than the smallest inner diameter of the central rod 1, whereby the outlet device 4 may be accommodated in the cabling cavity 13. The phase wire portion 23 may be partially disposed inside the wire outlet device 4. The wire outlet device 4 is disposed in the wire cavity 13 of the center rod 1, and the cable channel 41 penetrates the wire outlet device 4 along the axial direction (up-down direction as shown in fig. 1) of the wire outlet device 4, and as shown in fig. 10, the cable channel 41 includes a threading hole inlet and a threading hole outlet, wherein the threading hole outlet is an outlet of the cable channel 41, and the threading hole outlet is aligned with the corresponding center rod wire outlet through hole 16. The wire hole inlet and the wire hole outlet are located at both ends of the cable passage 41 in the axial direction, the wire hole inlet is close to the upper end of the first pole segment 11, the wire hole outlet is close to the upper end of the second pole segment 12, the phase wire part 23 enters the cable passage 41 from the wire hole inlet, the phase wire part 23 passes out of the cable passage 41 from the wire hole outlet, and then the phase wire part 23 passes out of the center pole outlet through hole 16 corresponding to the outlet of the cable passage 41.
Illustratively, the outlet device 4 has a whole cavity structure, and the inlet and the outlet of the threading hole are both communicated with the cavity structure inside the outlet device 4.
In some embodiments, the number of windings 31 in phase is plural, the wiring portions 22 are plural, the winding heads of adjacent windings 31 in phase are connected in series through the corresponding wiring portions 22, and the winding heads and the wiring portions 22 can be further separated for assembly, which is beneficial to improving assembly efficiency and realizing mass production.
Illustratively, when the winding 31 is a three-phase winding, the winding 31 includes a U-phase winding, a V-phase winding, and a W-phase winding. A connection structure in which a plurality of winding heads of the same phase are connected in series by the wiring portion 22 will be described below with reference to a plurality of U-phase windings such as a first U-phase winding, a second U-phase winding, and a third U-phase winding.
The U-phase winding is formed by winding U-phase winding wires, the U-phase winding wires are arranged in a winding groove, the winding wire heads of the U-phase winding wires are respectively U-phase one end and U-phase two ends, the U-phase one end is the starting end of the U-phase winding wire, the U-phase two ends are the tail ends of the U-phase winding wire, wherein the U-phase one end and the U-phase two ends are led out to the outer side of the magnetic piece 3, the U-phase two ends of the first U-phase winding wire can be connected with the U-phase one end of the second U-phase winding wire through a wiring part 22, the U-phase two ends of the second U-phase sleeve group can be connected with the U-phase one end of the third U-phase winding wire through a wiring part 22, the U-phase two ends of the third U-phase winding wire can be connected with the U-phase one end of the fourth U-phase winding wire, and if the U-phase winding wire heads comprise N positive integers, only the U-phase one end of the first U-phase winding wire is left unconnected with the U-phase two ends of the N-th U-phase winding wire after the U-phase winding wire heads are connected in series through the wiring part 22. According to the above embodiment, the U-phase ends of the nth U-phase winding can be connected to the phase wire portion 23 through the wiring portion 22. The V-phase winding is the same as the W-phase winding and will not be described again here.
As shown in fig. 8, in some embodiments, a plurality of wire outlet slots 322 are disposed on the outer peripheral surface of the iron core 32, the plurality of wire outlet slots 322 are disposed at intervals along the circumferential direction of the iron core 32, at least part of the wire distribution portion 22 may be embedded in the wire outlet slots 322, that is, winding wire ends may be led out to the outer periphery of the magnetic member 3, the winding wire ends and the wire distribution portion 22 in the corresponding wire outlet slots 322 may be connected to the outer periphery of the magnetic member 3, the tool operation space is not limited, the assembly space is enlarged, the assembly difficulty is reduced, the assembly efficiency is improved, the mass production is facilitated, the problem is easily and intuitively found during subsequent maintenance, and the maintenance cost is reduced. The bottom end of the iron core 32 is provided with a plurality of reinforcing ribs 321, the plurality of reinforcing ribs 321 are arranged at intervals to form a wire inlet port 3212, the wiring part 22 can be connected with other phases of wiring parts 22 through wire outlet notches 322 and wire inlet ports 3212 at corresponding positions, and the arrangement can enable the structure to be more compact.
Illustratively, the number of outlet slots 322 is a positive integer multiple of the total number of phases of the winding 31. The number of the outlet slots 322 is Z, the total number of phases of the winding 31 is M, and if q=z/M, Q is a positive integer. For example, m=3, and z may take the values of 3, 6, 9, 12, etc. three times. By this arrangement, the spatial arrangement of the multiphase windings 31 can be made symmetrical, and the electric potential and the magnetic potential generated by each phase winding 31 should be symmetrical, thereby improving the stability and reliability of the electromagnetic absorber 1000. While also meeting the various wire-outlet arrangement requirements of the winding heads of the winding 31.
In some embodiments, the magnetic member 3 includes a plurality of windings 31 and a plurality of cores 32, the windings 31 and the cores 32 may be alternately stacked in turn along the axial direction of the central rod 1, that is, the cores 32 are sandwiched between two adjacent windings 31, the wiring portion 22 extends along the axial direction of the magnetic member 3, the outer end wire of the winding 31 is a winding wire end, the wiring portion 22 includes three-phase wiring, and the in-phase windings 31 may be connected by corresponding in-phase wiring portions 22. Specifically, the electromagnetic damper 1000 is a linear motor, and the mover 600 of the electromagnetic damper 1000 moves linearly with respect to the stator 100 of the electromagnetic damper 1000. Through the structures of the windings 31 and the iron cores 32, the magnetic field intensity generated by the magnetic piece 3 can be enhanced, the iron cores 32 can concentrate and guide the magnetic field, so that the magnetic field is stronger and more stable, and the working efficiency of the magnetic piece 3 can be improved.
For example, the windings 31 and the iron cores 32 are both ring-shaped, the magnetic element 3 is formed by stacking a plurality of windings 31 and a plurality of iron cores 32 in a manner that a plurality of windings 31 are stacked on a layer of iron cores 32, the windings 31 and the iron cores 32 are stacked along the axial direction of the central rod 1, the stacked magnetic element 3 is sleeved on the central rod 1, and the magnetic element 3 is finally cylindrical. The winding 31 is a disc-shaped spiral structure like a coil spring formed by overlapping the winding from the inside to the outside up to the last turn of the outermost winding, and the winding heads at the innermost ends are led out to the outermost layer in the radial direction. Three or six wire outlet slots 322 are uniformly distributed on the circumference of each iron core 32, the wire outlet slots 322 can restrict the wire outlet direction, each layer of winding 31 leads out winding wire heads from the designated wire outlet slots 322, and the in-phase winding 31 can be wire-outlet along the wire outlet slots 322 at the same angle according to the principle that three phase wires are required to be connected together, so that the in-phase winding wire heads can be easily connected together from the outer side of the magnetic part 3 from top to bottom by the corresponding wire distribution part 22. It is worth noting that the winding of each layer of winding 31 of the magnetic part 3 is overlapped from inside to outside until the last winding is at the outermost side, and the winding wire end at the innermost side is led out to the outermost side in the radial direction, so that the wire is led out from the outer side of the magnetic part 3 after the winding of each layer of winding 31 of the magnetic part 3 is finished, the winding wire end and the cable 2 are also connected on the outer side of the magnetic part 3, the wire is led out from the outer side of the magnetic part 31, the wire is led out from the outer side, the assembly is simple, the materials are saved, the design space is effectively utilized, the tool operation space is larger when the tool is connected on the outer side of the magnetic part 3, the assembly is facilitated, the wire outlet contact is more stable, the fault is easy to check during the later maintenance, and the maintenance cost is reduced.
The iron core 32 and the windings 31 are alternately arranged along the axial direction of the central rod 1, the winding wire heads are connected with the wiring part 22 through the wire outlet slots 322 arranged on the iron core 32, the wire outlet slots 322 are convenient for wire outlet, the wiring part 22 can be fixed, the same-phase winding wire heads of all layers are conveniently connected through the wiring part 22, the same-phase winding wire heads are connected through the wiring part 22, and the wiring part 22 is embedded at the wire outlet slots 322, so that on one hand, the wiring part 22 can be fixed, and the shaking of the wiring part 22 is reduced; on the other hand, the structure is simple, the reliability of fixation is high, and the assembly is convenient.
Alternatively, the magnetic member 3 may include an iron core 32 and a plurality of windings 31, the iron core 32 being provided with a plurality of winding grooves, the winding grooves being provided with the windings 31, the winding grooves being extendable in a radial direction, the iron core 32 being provided with a plurality of wire outlet notches 322 on an outer circumferential surface thereof, the wire outlet notches 322 being extendable in an axial direction.
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 corresponding wiring portions 22, the different wiring portions 22 may be connected through the corresponding wire outlet slot 322 and the wire inlet through-hole 3212, respectively. The number of the incoming line through holes 3212 is equal to the total number of phases of the windings 31, and an outgoing line notch 322 is correspondingly arranged on the outer side of each incoming line through hole 3212 in the radial direction of the iron core 32, so that the wiring part 22 connected with the in-phase winding wire heads can pass through the corresponding outgoing line notch 322 and the incoming line through holes 3212 corresponding to the outgoing line notch 322, and the structure can be more compact due to the arrangement.
For example, the plurality of reinforcing ribs 321 define a wire harness fixing groove 3211 communicated with the wire inlet port 3212, and a part of the wire distribution portion 22 is accommodated in the wire harness fixing groove 3211, and by arranging the wire harness fixing groove 3211, the wire distribution portion 22 can be restrained, so that random shaking of the wire distribution portion 22 is avoided, the damage probability of the wire distribution portion 22 is reduced, and the service life of the wire distribution portion 22 is prolonged.
As shown in fig. 1, 3 and 4, in some embodiments, the stator 100 further includes a limiting pad 5, where the limiting pad 5 is sleeved on the central rod 1, and the limiting pad 5 may be matched with the central rod outlet through hole 16, and the limiting pad 5 and the central rod outlet through hole 16 fix the cable 2 together. The limit pad 5 can play a role in protecting the cable 2, and ensure the reliability of the electrical system.
As shown in fig. 5-7, in some embodiments, the center pole 1 includes a first pole segment 11, a second pole segment 12, and a pole ring structure 15, with the first pole segment 11 and the second pole segment 12 separated by the pole ring structure 15. One part of the central rod outgoing line through hole 16 is formed in the first rod section 11, the other part of the central rod outgoing line through hole is formed in the rod ring structure 15, the limiting pad 5 is a rotary structural member, the limiting pad 5 can be sleeved on the first rod section 11, a wiring limiting hole is formed in the periphery of the limiting pad 5 and the central rod outgoing line through hole 16, and the cable 2 can pass through the wiring limiting hole. Specifically, the central rod outlet through hole 16 includes a first outlet half hole 111 and a second outlet half hole 152, the first outlet half hole 111 is opened in the first rod section 11, the second outlet half hole 152 is opened in the rod ring structure 15, and the length of the second outlet half hole 152 in the radial direction of the central rod 1 is greater than the length of the first outlet half hole 111 in the radial direction of the central rod 1. The limiting pad 5 has a limiting pad half hole, and the limiting pad half hole and the central rod wire outlet through hole 16 enclose a wire distribution limiting hole, that is, the limiting pad half hole and the second wire outlet half hole 152 enclose a wire distribution limiting hole, and the cable 2 can pass through the wire distribution limiting hole. Therefore, the structure of the center rod 1 can be more compact, the wiring limiting hole can protect the cable 2, the rod ring structure 15 can limit the axial movement of the magnetic piece 3, and the magnetic piece 3 is prevented from moving to the first rod section 11.
For example, referring to fig. 1, the cable 2 is a three-phase cable 2, and the cable 2 is located in the routing cavity 13, whereby the cable 2 in the drawing is a phase wire section 23. As shown in fig. 3 and 6, the center pole outlet through holes 16 include three, each center pole outlet through hole 16 corresponds to one phase wire portion 23, the outlet of the cable passage 41 is aligned with the center pole outlet through hole 16, and as shown in fig. 10, that is, the outlet of the cable passage 41 is also three (not shown), the three-phase wire portions 23 are respectively penetrated out from the outlets of the different cable passages 41 and penetrated out from the corresponding center pole outlet through holes 16, that is, the three-phase wire portions 23 include a U-phase wire portion, a V-phase wire portion, and a W-phase wire portion, the U-phase wire portion is penetrated out from one cable passage 41 and penetrated out from one center pole outlet through hole 16, the V-phase wire portion is penetrated out from another cable passage 41 and penetrated out from another center pole outlet through hole 16, and the W-phase wire portion is penetrated out from another cable passage 41 and penetrated out from another center pole outlet through hole 16.
Alternatively, on the magnetic member 3, the winding heads of the in-phase winding 31 are connected together by the wiring portions 22 of the in-phase to form an in-phase winding head group, and the different in-phase winding head groups are connected at the reinforcing bars 321.
Thus, the phase wire part 23 penetrates into the inner side of the central rod 1 from the outside and passes through the threading hole outlet of the wire outlet device 4 and the central rod wire outlet through hole 16 to be penetrated out, and then is connected with the wire distribution part 22 at the outer side of the magnetic piece 3, and the wire outlet device 4 is used for fixing and protecting the phase wire part 23 in the whole process, so that the problem that the extrusion and the scratch risk exist in the related art is solved.
Alternatively, the wire outlet device 4 may adopt a circular pipeline structure, the phase line parts 23 are fixed in the pipelines, the three-phase line parts 23 respectively penetrate from above three pipelines on the wire outlet device 4 and penetrate from below, outlets of the three pipelines below the wire outlet device 4 are uniformly distributed along the circumferential direction, and the wire outlet through holes 16 of the central rod are in one-to-one correspondence with the outlets of the three pipelines of the wire outlet device 4.
Alternatively, three outlets of the threading holes are arranged on the wire outlet device 4 at equal angles.
The center rod outlet through holes 16 are arranged in one-to-one correspondence with the outlet slots 322. Specifically, the center rod outlet through holes 16, the outlet slots 322 and the threading hole outlets of the cable channels 41 are arranged in a one-to-one correspondence, so that the position deviation of the cables 2 is small and the connection is reliable.
Illustratively, the center rod outlet through hole 16 includes three, the outlet slot 322 includes three, and the wire hole outlet of the cable channel 41 includes three, which are in one-to-one correspondence.
As shown in fig. 1 and 10, in some embodiments, the end of the cable 2 remote from the magnetic member 3 is threaded out of the central rod 1, and the cable 2 is connected with a plug 21. Specifically, the plug 21 may plug in a power supply to supply power to the magnetic member 3. The plug connector 21 is a quick-change connector, can realize quick plug connection with a power supply, and is simple and convenient to operate.
The linear motor according to the embodiment of the present invention includes the stator 100 according to the embodiment of the present invention.
The electromagnetic shock absorber 1000 according to an embodiment of the present invention includes a mover 600 and a stator 100 according to an embodiment of the present invention, the mover 600 having a mover cavity, the stator 100 being disposed in the mover cavity, the mover 600 being movable in an axial direction with respect to the stator 100.
Specifically, the electromagnetic shock absorber 1000 includes a linear motor, and a conventional hydraulic damping shock absorber and the linear motor are combined to form the electromagnetic shock absorber 1000 of the present invention. The traditional hydraulic damping shock absorber is passive damping, a motor wire outlet does not need to be designed, the whole structure of the electromagnetic shock absorber 1000 is based on the traditional hydraulic damping shock absorber, the middle damper is replaced by a linear motor, the purpose of the electromagnetic shock absorber is to actively damp vibration by the linear motor on the basis of passive damping, active control is achieved by adjusting the magnetic piece 3 according to excitation transmitted by a road surface, excitation transmitted to a passenger cabin is well attenuated on a path, and the trafficability, smoothness and comfort of the whole vehicle are finally improved. According to the structural composition of the electromagnetic damper 1000, the electromagnetic damper mainly comprises a stator 100, a rotor 600 and a tower top 700, wherein the stator 100 and the rotor 600 form a linear motor, the winding wire heads of the windings 31 are connected with a cable 2 of the stator 100, and the cable 2 passes through a wire cavity 13 of the central rod 1 to the outside of the motor.
According to the electromagnetic shock absorber 1000 provided by the embodiment of the invention, a plurality of functions are integrated, so that the electromagnetic shock absorber 1000 has a larger electromagnetic force design space and a high-efficiency operation working environment on the basis of normal operation, and the overall competitiveness is improved. By providing the stator 100 as described above, the center rod 1 can be applied to the electromagnetic shock absorber 1000, and by providing the sensor mounting region 141 on the center rod 1, it can be used to fix the sensor 800, thereby avoiding the influence on the detection accuracy caused by the sensor 800 being disposed on the mover 600.
As shown in fig. 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 magnet 602 is uniformly distributed on the inner side of the housing 601 to provide a fixed magnetic field, the inner side of the mover magnet 602 forms the mover cavity, the mover magnet 602 is sleeved on the periphery of the magnetic member 3, the mover magnet 602 is mounted on the inner wall of the housing 601, and the mover magnet 602 is located between the housing 601 and the magnetic member 3; the cable 2 is partially located between the mover magnet 602 and the magnetic member 3. Specifically, a gap is provided between the mover magnet 602 and the magnetic member 3, and the cable 2 passes through the gap and penetrates into the wiring limiting hole of the first pole segment 11. When the mover magnet 602 performs linear motion in the axial direction with respect to the magnetic member 3, interference of the cable 2 can be avoided, and the electromagnetic damper 1000 is more compact in structure. The casing 601 is connected to guide post 6032, and guide post 6032 still can be connected with the lower swing arm of vehicle 10000, and the cavity includes guide chamber 19, and at least partial guide post 6032 can stretch into in the guide chamber 19 and can follow the axial displacement of center pole 1, and guide post 6032 plays the guide effect promptly, improves active cell 600 axial displacement's stability and reliability.
As shown in fig. 1 and 2, illustratively, the mover 600 includes a housing 601 and a yoke 603, a mover magnet 602 is mounted on an inner wall of the housing 601, the yoke 603 may be connected to the housing 601, and the yoke 603 is further used for connection with a lower swing arm of the subframe. Specifically, the fork arm 603 and the lower swing arm are assembled on the auxiliary frame in a matched manner, and the fork arm 603 and the shell 601 are connected through bolts to form a closed running environment inside the electromagnetic shock absorber 1000. Through casing 601 and yoke 603, realize the connection between electromagnetic shock absorber 1000 and the vehicle 10000, structural arrangement is reasonable.
As shown in fig. 1 and 9, one end of the housing 601 is connected to a fork arm 603, and a guide post 6032 is arranged on the fork arm 603, and the guide post 6032 is close to the second rod section 12 of the central rod 1; the other end of the housing 601 forms a housing hole 6012, and the housing hole 6012 may pass through the center rod 1. When the mover 600 moves, the housing 601 moves with it, and when the mover 600 is located at the first limit position, the portion of the center rod 1 protruding out of the housing hole 6012 is the largest; when the mover 600 is located at the second extreme position, the portion of the center rod 1 protruding out of the housing hole 6012 is minimized; the intermediate position of the mover 600 is between the first limit position and the second limit position. That is, the housing 601 has a relative movement with the central rod 1 at the housing bore 6012 and the guide post 6032 has a relative movement with the central rod 1 at the opening of the second rod section 12. Illustratively, the first sliding bearing 6041 is embedded at the housing bore 6012 of the housing 601, specifically, the first sliding bearing 6041 is embedded at a circular truncated cone at the housing bore 6012, which circular truncated cone may be radially offset from the upper support 701, thereby increasing the axial space of the electromagnetic shock absorber 1000.
As shown in fig. 1, 2 and 9, optionally, the fork 603 includes a fork body 6031, the guide post 6032 is connected to a side of the fork body 6031 facing the center rod 1, the mover 600 further includes a cushion 605, the cushion 605 is located between the fork body 6031 and the center rod 1, and the cushion 605 is sleeved on the guide post 6032 and located outside an end of the center rod 1. When the mover 600 moves to the second limit position, the buffer pad 605 can absorb the collision of the fork arm body 6031 to the center rod 1, and can buffer the impact of the mover 600 to the stator 100 under the limit working condition, thereby protecting the magnetic element 3 on the stator 100, playing a role of protection and reducing noise.
Illustratively, the second pole segment 12 of the central pole 1 is connected to the first pole segment 11 at one end, the second pole segment 12 has an opening at the other end, and the opening communicates with the guide cavity 19 through which the guide post 6032 may pass to extend into the guide cavity 19. When the mover 600 moves, the mover 600 has a first limit position, a second limit position, and an intermediate position; when the mover 600 is positioned at the first limit position, the portion of the guide post 6032 extending into the guide cavity 19 is minimum; when the mover 600 is positioned at the second limit position, the guide post 6032 extends into the guide cavity 19 most; the intermediate position of the mover 600 is between the first limit position and the second limit position.
As shown in fig. 1-4, in some embodiments, the electromagnetic shock absorber 1000 further includes a first slide bearing 6041 and a second slide bearing 6042, the housing 601 has a housing hole 6012, the center rod 1 passes through the housing hole 6012 to partially protrude outside the housing 601, the first slide bearing 6041 is disposed between the housing hole 6012 and an outer peripheral surface of the center rod 1, and the second slide bearing 6042 is disposed between an outer peripheral surface of the guide post 6032 and a cavity wall of the hollow cavity. That is, the first slide bearing 6041 is provided at the insertion fit of the housing 601 with the center rod 1, the second slide bearing 6042 is provided at the insertion fit of the guide post 6032 with the guide chamber 19, that is, the first slide bearing 6041 is provided at the housing hole 6012 of the housing 601, and the second slide bearing 6042 is provided at the opening of the second rod section 12, by providing the first slide bearing 6041 and the second slide bearing 6042, the sliding of the mover 600 can be made smoother, the accuracy of the operation of the electromagnetic absorber 1000 can be improved, and the noise can be reduced.
As shown in fig. 1, in some embodiments, the guide cavity 19 may be in communication with the routing cavity 13, and the guide cavity 19 and the routing cavity 13 together form a hollow cavity.
Or in other embodiments, the guiding cavity 19 may be separated from the routing cavity 13 by a partition wall, and the guiding cavity 19 and the routing cavity 13 respectively form a part of the hollow cavity.
As shown in fig. 1, 4 and 9, in some embodiments, the housing 601 is provided with a positioning hole 6011, and a positioning pin may penetrate the positioning hole 6011 and cooperate with an axially extending anti-rotation groove 112 on the center rod 1 to limit rotation of the housing 601 relative to the center rod 1. For example, the stator 100 and the tower top 700 are assembled together through the central rod 1 and the fastening nut 702 in the stator 100, when assembling, a torque wrench is required to screw the fastening nut 702, in order to prevent the stator 100 from being unable to screw along with the fastening nut 702 rotating around the central axis of the central rod 1, anti-rotation grooves 112 are formed on two sides of the first rod section 11 on the central rod 1, a positioning hole 6011 corresponding to the anti-rotation grooves 112 is formed on the housing 601, when assembling, a long pin is inserted into a pin hole to prevent rotation, and then the fastening nut 702 is screwed again, so that assembling can be completed.
As shown in fig. 1, 5 and 6, in some embodiments, the electromagnetic absorber 1000 further includes a tower top 700, a spring 607 is disposed between the tower top 700 and the housing 601, a partial protrusion of the housing 601 may support the spring 607 and dissipate heat of the whole, and the spring 607 may buffer impact of a road surface. The tower top 700 includes an upper support 701, the upper support 701 being connectable to a vehicle body, the center rod 1 being able to pass through the upper support 701 to pass the cable 2 out of the tower top 700, whereby the connection between the electromagnetic shock absorber 1000 and the vehicle 10000 body is achieved by the upper support 701. The tower top 700 is matched with the shell 601 and seals the interior of the shell 601, namely the interior of the electromagnetic shock absorber 1000 is in a sealed state, so that the stability and the reliability of operation are improved; the first thread section 171 is arranged on the center rod 1, the fastening nut 702 is located on one side, away from the rotor 600, of the upper supporting piece 701, the fastening nut 702 is in threaded connection with the first thread section 171, and the stator 100 can be assembled to the tower top 700 through the cooperation of the fastening nut 702 and the first thread section 171, so that the stability and reliability of connection are improved, and the assembly is easy. The central rod 1 has an end shoulder 113, against which the upper support 701 can rest; the fastening nut 702 is located on the side of the upper support 701 facing away from the mover 600, and the fastening nut 702 can be screwed with the first threaded section 171 on the center rod 1, the upper support 701 being sandwiched between the fastening nut 702 and the end shoulder 113; the cooler 608 is fixed on the central rod 1, and the cooling chamber 142 inside the central rod 1 can exchange heat with the cooler 608 and realize heat exchange.
As shown in fig. 1, the tower top 700 may be fixed to a vehicle body, the central rod 1 passes through the middle of the upper support 701, and the cable 2 passes through the vehicle body to reach the front cabin, and the quick-change connector plug 21 is matched with an electric control system, so as to connect the electric control system, and finally, the electromagnetic shock absorber 1000 is controlled.
As shown in fig. 1, for example, a dust cover 606 is provided at the junction of the center pole 1 and the housing 601 to prevent foreign substances such as dust from entering the inside of the housing 601.
As shown in fig. 11, a suspension system 2000 according to an embodiment of the present invention includes an electromagnetic shock absorber 1000 according to an embodiment of the present invention. By providing the electromagnetic shock absorber 1000 described above, the center rod 1 can be applied to the electromagnetic shock absorber 1000, and by providing the sensor mounting region 141 on the center rod 1, it can be used to fix the sensor 800, thereby avoiding the influence on the detection accuracy due to the sensor 800 being provided on the mover 600.
As shown in fig. 12, a vehicle 10000 according to an embodiment of the present invention includes an electromagnetic absorber 1000 according to an embodiment of the present invention, and by providing the electromagnetic absorber 1000 described above, a center pole 1 can be applied to the electromagnetic absorber 1000, and by providing a sensor mounting region 141 on the center pole 1, it can be used to fix a sensor 800, avoiding the sensor 800 being provided on a mover 600 to affect its detection accuracy.
It should be emphasized that the central rod 1 of the present invention integrates a plurality of functions such as limiting, positioning, rotation prevention, heat dissipation, guiding, wire outgoing, etc. Firstly, the central rod 1 is fully matched with the tower top 700, the winding 31, the iron core 32 and the shell 601, so that the basic functions of guiding and the like can be realized under the same axial space, the limit of the external boundary space of the tower top 700, the fork arms 603 and the like can be met, more valuable axial space is provided for electromagnetic design, and better electromagnetic thrust performance can be obtained; secondly, the cable 2 is led out from the outer side of the magnetic part 3, passes through the lead-out device 4 assembled in the center rod 1, and is finally connected with the electric control through the quick replacement plug-in connector 21, wherein the lead-out from the outer side of the magnetic part 3 is easier to assemble, and the lead-out device 4 assembled in the center rod 1 can well protect and fix the cable 2; thirdly, the hollow structure is arranged between the inner side surface and the outer side surface of the rod peripheral wall 14 of the central rod 1 to form the cooling chamber 142, and the cooling medium is added into the cooling chamber to form a cold-heat exchange cycle by combining the cooler 608 assembled above the central rod 1, so that the heat dissipation problem in the operation of the electromagnetic damper 1000 is well solved, the upper part of the central rod 1 is fully contacted with the inside of the cooler 608, no additional parts are added, and the whole cooling scheme has compact structure. Fourth, the upper and lower ends of the center rod 1 are provided with threads, and the center rod comprises a positioning groove 822 and an anti-rotation groove 112, so that the assembly problem of the magnetic part 3 and the center rod 1 and the assembly problem of the rotor 600 and the center rod 1 are well solved. The center rod 1 also has the advantages of high functional integration level, compact space design and convenient disassembly and assembly.
Other components and operations of the vehicle 10000 according to the embodiment of the present invention are known to those of ordinary skill in the art, and will not be described in detail herein.
In the description of the invention, a "first feature" or "second feature" may include one or more of such features. The vertical direction, the horizontal direction, and the front-rear direction are defined by the vertical direction, the horizontal direction, and the front-rear direction in the drawing.
In the description of the present invention, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (33)
1. A central rod (1), characterized in that the central rod (1) is provided with an anti-rotation groove (112), the anti-rotation groove (112) being adapted to cooperate with a mover (600) to limit the rotation of the mover (600) relative to the central rod (1); the outer side surface of the rod peripheral wall (14) of the center rod (1) is also provided with a sensor mounting area (141) for mounting a sensor (800).
2. The center pole (1) according to claim 1, characterized in that the inside of the center pole (1) is provided with a hollow cavity, and a pole peripheral wall (14) of the center pole is provided with a center pole outlet through hole (16) communicated with the hollow cavity.
3. The center pole (1) of claim 2, wherein the sensor mounting area (141) includes at least a sensor positioning plane (1411), the sensor positioning plane (1411) having a sensor securing structure (1412) disposed thereon.
4. The center pole (1) according to claim 2, characterized in that the center pole (1) comprises a first pole segment (11) and a second pole segment (12), the sensor mounting area (141) being located on the first pole segment (11), the second pole segment (12) being provided with a magnetic element mounting area (122).
5. The center pole (1) according to claim 4, wherein the center pole outlet through hole (16) is located between the sensor mounting region (141) and the magnetic piece mounting region (122) in an axial direction of the center pole (1).
6. The central rod (1) according to claim 4, characterized in that the interior of the central rod (1) has a cooling chamber (142), the cooling chamber (142) being adapted to accommodate a cooling medium therein, the cooling chamber (142) extending from the second rod section (12) into the first rod section (11).
7. The central rod (1) according to claim 6, characterized in that the cooling chamber (142) is a closed chamber; or, one end of the first rod section (11) far away from the second rod section (12) is provided with a medium filling port (1421) communicated with the cooling chamber (142).
8. The central rod (1) according to any one of claims 4-7, characterized in that the first rod section (11) is provided with the anti-rotation groove (112); and/or, the second pole section (12) is provided with a positioning groove (822), and the positioning groove (822) is suitable for being matched with the magnetic piece (3) arranged on the magnetic piece installation area (122) to limit the magnetic piece (3) to rotate relative to the central pole (1).
9. The central rod (1) according to claim 8, characterized in that the anti-rotation groove (112) extends in the axial direction of the central rod (1) and/or the positioning groove (822) extends in the axial direction of the central rod (1).
10. The central rod (1) according to claim 4, characterized in that the central rod (1) further comprises a rod ring structure (15), the rod ring structure (15) having an outer diameter larger than the outer diameter of the second rod section (12), the rod ring structure (15) being adapted to stop the magnetic element (3) in the axial direction of the central rod (1).
11. The central rod (1) according to claim 10, characterized in that the central rod outlet through hole (16) is open on the side of the rod ring structure (15) facing away from the second rod section (12).
12. The center rod (1) according to claim 10, characterized in that an end of the first rod section (11) remote from the second rod section (12) is provided with a first thread section (171), the first thread section (171) being adapted to be screwed with a fastening nut (702), an end of the second rod section (12) remote from the first rod section (11) is provided with a second thread section (172), the second thread section (172) being adapted to be screwed with a stop nut (18), the magnetic element mounting area (122) being located between the rod ring structure (15) and the second thread section (172).
13. A stator (100), characterized by comprising:
the center pole (1) of any one of claims 1-12;
-a position sensor (800), the position sensor (800) being mounted to the sensor mounting area (141).
14. The stator (100) of claim 13, wherein the stator (100) further comprises:
the cable (2) is penetrated through the central rod outgoing through hole (16), and the cable (2) is partially positioned in the hollow cavity inside the central rod (1) and partially positioned outside the central rod (1);
the magnetic part (3), magnetic part (3) cover is located on magnetic part installation zone (122) of center pole (1), cable (2) are partly set up the periphery of magnetic part (3), magnetic part (3) include winding end of a thread, winding end of a thread to the periphery of magnetic part (3) draws forth and is suitable for the connection cable (2).
15. The stator (100) of claim 14, wherein the central rod (1) comprises a first rod section (11) and a second rod section (12), the sensor mounting area (141) is located on the first rod section (11), the magnetic element mounting area (122) is located on the second rod section (12), the hollow cavity comprises a routing cavity (13) located inside the first rod section (11), the central rod outlet through hole (16) is in communication with the routing cavity (13), the stator (100) further comprises an outlet device (4), and the outlet device (4) is located in the routing cavity (13) to fix the cable (2).
16. The stator (100) of claim 15, wherein the wire-out device (4) has a wire-hole inlet at one axial end and a wire-hole outlet at the other axial end, the wire (2) being adapted to pass through the wire-hole inlet and the wire-hole outlet, the wire-hole outlets being a plurality of the wire-hole outlets spaced along the axis of the wire-out device (4), the wire-hole outlets being adapted to be aligned with the corresponding center-rod wire-out through holes (16).
17. The stator (100) according to claim 16, wherein the wire hole inlets and the wire hole outlets are in one-to-one correspondence, and a cable passage (41) for fixing the corresponding cable (2) is formed between the wire hole inlets and the corresponding wire hole outlets, and a difference between a diameter of the cable passage (41) and an outer diameter of the fixed cable (2) is not more than 5mm.
18. The stator (100) according to any one of claims 14 to 17, wherein the magnetic element (3) comprises:
an iron core (32), wherein the iron core (32) comprises a plurality of winding grooves distributed along the axial direction of the iron core (32);
the winding (31) is wound in the winding groove, the outer end wire head of the winding (31) is the winding wire head, and the winding wire head is connected with the cable (2).
19. The stator (100) of claim 18, wherein the cable (2) includes a phase wire section (23) and a wire distribution section (22) connected to each other, the phase wire section (23) being located within the hollow cavity and passing through the central rod outlet through hole (16), the winding (31) having a plurality of winding heads in phase, the winding heads in phase being connected in series by the wire distribution section (22).
20. The stator (100) of claim 19, wherein the plurality of windings (31) are in phase, the wiring sections (22) are multi-segmented, and winding heads of adjacent windings (31) are connected in series by corresponding wiring sections (22).
21. The stator (100) of claim 19, wherein the iron core (32) is provided with a plurality of wire outlet slots (322), the plurality of wire outlet slots (322) are arranged at intervals along the circumferential direction of the iron core (32), at least part of the wire distribution portion (22) is suitable for being embedded in the wire outlet slots (322), the bottom end portion of the iron core (32) is provided with a plurality of reinforcing ribs (321), the plurality of reinforcing ribs (321) are arranged at intervals to form a wire inlet through port (3212), and the wire distribution portion (22) is suitable for being connected with wire distribution portions (22) of other phases through the wire outlet slots (322) and the wire inlet through ports (3212) at corresponding positions.
22. The stator (100) according to claim 14, wherein the stator (100) further comprises a limiting pad (5), the limiting pad (5) is sleeved on the central rod (1), and the limiting pad (5) cooperates with the central rod outlet through hole (16) to fix the cable (2).
23. The stator (100) of claim 22, wherein the central rod (1) further comprises a first rod segment (11), a second rod segment (12) and a rod ring structure (15), the first rod segment (11) and the second rod segment (12) are separated by the rod ring structure (15), a part of the central rod outgoing line through hole (16) is formed in the first rod segment (11), another part of the central rod outgoing line through hole is formed in the rod ring structure (15), the limiting pad (5) is sleeved on the first rod segment (11), a wire limiting hole is formed by surrounding the limiting pad (5) and the central rod outgoing line through hole (16), and the wire (2) is suitable for being penetrated out of the wire limiting hole.
24. The stator (100) according to claim 14, characterized in that the end of the cable (2) remote from the magnetic element (3) is threaded out of the central rod (1) and is connected with a plug (21).
25. A linear motor, characterized by comprising a stator (100) according to any one of claims 13-24.
26. An electromagnetic shock absorber (1000), comprising:
the stator (100) according to any one of claims 13-24;
-a mover (600), the mover (600) having a mover cavity, the stator (100) being arranged in the mover cavity, the mover (600) being movable in relation to the axial direction of the stator (100).
27. The electromagnetic shock absorber (1000) of claim 26, wherein the mover (600) comprises:
a housing (601);
the rotor magnet (602), the rotor magnet (602) is installed on the inner wall of the shell (601), the rotor cavity is formed on the inner side of the rotor magnet (602), and the rotor magnet (602) is sleeved on the periphery of the magnetic piece (3) installed on the center rod (1);
the guide post (6032), guide post (6032) connect casing (601), guide post (6032) still are used for being connected with the lower swing arm of vehicle (10000), the inside cavity of center pole (1) includes guide chamber (19), and at least part guide post (6032) are suitable for stretching into in guide chamber (19) and can follow the axial displacement of center pole (1).
28. The electromagnetic shock absorber (1000) according to claim 27, wherein the electromagnetic shock absorber (1000) further comprises 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 protrude out of the housing (601), the first sliding bearing (6041) is disposed between the housing hole (6012) and an outer peripheral surface of the center rod (1), and the second sliding bearing (6042) is disposed between an outer peripheral surface of the guide post (6032) and a cavity wall of the hollow cavity.
29. The electromagnetic shock absorber (1000) according to claim 27, wherein the mover (600) further comprises a cushion (605), the cushion (605) being sleeved on the guide post (6032) and located outside the end of the center rod (1).
30. The electromagnetic shock absorber (1000) according to claim 27, wherein the housing (601) is provided with a positioning hole (6011), and a positioning pin is adapted to penetrate the positioning hole (6011) and cooperate with an axially extending anti-rotation groove (112) on the central rod (1) to limit rotation of the housing (601) relative to the central rod (1).
31. The electromagnetic shock absorber (1000) of claim 27, wherein the electromagnetic shock absorber (1000) further comprises a tower top (700), a spring (607) being provided between the tower top (700) and the housing (601), the tower top (700) comprising:
-an upper support (701), the upper support (701) being adapted to be connected to a vehicle body, the central rod (1) being adapted to pass through the upper support (701), the central rod (1) having an end shoulder (113), the upper support (701) ending against the end shoulder (113);
-a fastening nut (702), the fastening nut (702) being located on the side of the upper support (701) facing away from the mover (600), and the fastening nut (702) being adapted to be screwed with a first threaded section (171) on the central rod (1), the upper support (701) being sandwiched between the fastening nut (702) and the end shoulder (113);
-a cooler (608), said cooler (608) being fixed to said central rod (1), a cooling chamber (142) inside said central rod (1) being adapted to exchange heat with said cooler (608).
32. A suspension system (2000), comprising: electromagnetic shock absorber (1000) according to any of claims 26-31.
33. A vehicle (10000), characterized by comprising: the suspension system (2000) of claim 32.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311867740.0A CN117895721A (en) | 2023-12-29 | 2023-12-29 | Center rod, stator, linear motor, electromagnetic shock absorber, suspension system, and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311867740.0A CN117895721A (en) | 2023-12-29 | 2023-12-29 | Center rod, stator, linear motor, electromagnetic shock absorber, suspension system, and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN117895721A true CN117895721A (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311867740.0A Pending CN117895721A (en) | 2023-12-29 | 2023-12-29 | Center rod, stator, linear motor, electromagnetic shock absorber, suspension system, and vehicle |
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| CN (1) | CN117895721A (en) |
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| US20080290624A1 (en) * | 2007-05-21 | 2008-11-27 | Aisin Seiki Kabushiki Kaisha | Suspension apparatus |
| CN102900805A (en) * | 2011-07-28 | 2013-01-30 | 日立汽车系统株式会社 | Electromagnetic suspension |
| US20130229074A1 (en) * | 2012-03-02 | 2013-09-05 | Bose Corporation | Rotor Assembly Having Ball Nut Cartridge |
| CN106930914A (en) * | 2017-03-20 | 2017-07-07 | 河南科技大学 | A kind of electric automobile feed energy suspension TRT |
| CN113632344A (en) * | 2019-07-11 | 2021-11-09 | 日立安斯泰莫株式会社 | Electric linear actuator |
| WO2023135893A1 (en) * | 2022-01-14 | 2023-07-20 | 日立Astemo株式会社 | Linear motor, electric suspension device comprising same, and vibration damping system |
-
2023
- 2023-12-29 CN CN202311867740.0A patent/CN117895721A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080290624A1 (en) * | 2007-05-21 | 2008-11-27 | Aisin Seiki Kabushiki Kaisha | Suspension apparatus |
| CN102900805A (en) * | 2011-07-28 | 2013-01-30 | 日立汽车系统株式会社 | Electromagnetic suspension |
| US20130229074A1 (en) * | 2012-03-02 | 2013-09-05 | Bose Corporation | Rotor Assembly Having Ball Nut Cartridge |
| CN106930914A (en) * | 2017-03-20 | 2017-07-07 | 河南科技大学 | A kind of electric automobile feed energy suspension TRT |
| CN113632344A (en) * | 2019-07-11 | 2021-11-09 | 日立安斯泰莫株式会社 | Electric linear actuator |
| WO2023135893A1 (en) * | 2022-01-14 | 2023-07-20 | 日立Astemo株式会社 | Linear motor, electric suspension device comprising same, and vibration damping system |
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