Linear motor, suspension system and vehicle

Abstract

The utility model discloses a linear motor, a suspension system and a vehicle, the linear motor comprises a mover assembly, a stator assembly, a conductive assembly and a position detection assembly, the stator assembly comprises a stator core shaft, the stator core shaft comprises a shaft wall, and the stator core shaft comprises a first chamber surrounded by the shaft wall; the conductive assembly is suitable for being electrically connected with a motor controller; the position detection assembly comprises an induction piece, and the induction piece is used for detecting the position of the mover assembly; wherein one of the induction piece and the conductive assembly is fixedly arranged in the first cavity, and the other one of the induction piece and the conductive assembly is fixedly arranged on the peripheral wall of the shaft wall. Therefore, the induction piece and the conductive assembly can be isolated, so that the condition of faults caused by conduction of the induction piece and the conductive assembly is avoided, interference on the induction piece is reduced, and the detection precision of the induction piece is improved.

Description

Technical Field

[0001] The present application relates to the field of motors, and in particular to a linear motor, a suspension system and a vehicle. Background Art

[0002] In the related art, the stator is provided with a stator core shaft, and an electrical connector is provided inside the stator core shaft, and the electrical connector is used to supply power to the stator winding, and the stator core shaft is also provided with an induction component, and the induction component is used to detect the position of the mover assembly to determine the working state of the linear motor. However, the electrical connector may cause certain interference to the induction component, resulting in damage to the induction component or detection deviation, and there is room for improvement. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a linear motor that can avoid the situation where the induction element and the conductive component are connected to each other and cause a malfunction, and can reduce the interference to the induction element and improve the detection accuracy of the induction element.

[0004] According to the linear motor of the embodiment of the utility model, it includes: a mover assembly; a stator assembly, the stator assembly includes a stator core shaft, the stator core shaft includes an axis wall, and the stator core shaft includes a first chamber surrounded by the axis wall; a conductive assembly, the conductive assembly is suitable for being electrically connected to a motor controller; and a position detection assembly, the position detection assembly includes a sensor, the sensor is used to detect the position of the mover assembly; wherein, one of the sensor and the conductive assembly is fixedly arranged in the first chamber, and the other is fixedly arranged on the outer peripheral wall of the axis wall.

[0005] According to the linear motor of the embodiment of the utility model, the induction part and the conductive component are respectively arranged on the inner and outer sides of the shaft wall, so that the induction part and the conductive component can be isolated, thereby avoiding the situation where the induction part and the conductive component are conductive and causing a malfunction, and reducing the interference to the induction part, which is beneficial to improving the detection accuracy of the induction part and improving the reliability of the linear motor.

[0006] According to the linear motor of some embodiments of the present utility model, the induction component is arranged on the outer peripheral wall of the shaft wall, the outer peripheral wall of the shaft wall is provided with a fixing groove, and the induction component is placed in the fixing groove.

[0007] According to some embodiments of the present invention, the linear motor further includes a covering member, wherein the covering member covers the induction member.

[0008] According to the linear motor of some embodiments of the present invention, the cover is externally mounted on the stator core shaft.

[0009] According to the linear motor of some embodiments of the present invention, the conductive component is fixed in the first chamber, the conductive component includes a conductive part and an insulating base wrapping the conductive part, the inner circumferential wall of the stator core shaft is provided with a fixing part, and the insulating base is fixed to the fixing part.

[0010] According to the linear motor of some embodiments of the present invention, the fixing portion and the stator core shaft are an integrated piece.

[0011] According to the linear motor of some embodiments of the present invention, the conductive member is arranged close to a side of the insulating base away from the inductive member.

[0012] According to the linear motor of some embodiments of the present invention, the fixing portion is arranged near the axial first end portion of the stator core shaft, and the outer peripheral wall of the insulating base is provided with an escape space extending along the axial direction, and the escape space is used to avoid the fixing portion to facilitate the installation of the conductive component from the first end portion into the first cavity.

[0013] According to the linear motor of some embodiments of the present invention, the inner circumferential wall of the stator core shaft is provided with a first radially inwardly protruding boss, and the insulating base includes a first rib located between two adjacent avoidance spaces, and the first rib stops at the first boss.

[0014] According to the linear motor of some embodiments of the utility model, the insulating base also includes an insulating cylinder, one side of the insulating cylinder is connected to the first convex rib, and the other side of the insulating cylinder is provided with a plurality of arc-shaped stop ribs; the inner circumferential wall of the stator core shaft is also provided with a radially inwardly protruding second boss and a second boss, and the plurality of stop ribs stop at the second boss and the third boss.

[0015] According to some embodiments of the linear motor of the present invention, an extension portion is provided at one end of the insulating column away from the fixed portion, one end of the conductive member is provided in the extension portion, and a radial outer peripheral wall of the extension portion is provided with an opening to expose the conductive member.

[0016] According to the linear motor of some embodiments of the present invention, the stator assembly also includes a stator winding, and the three-phase lead wires of the stator winding are electrically connected to the conductive member through an electrical connector, and one end of the electrical connector is located in the opening to be electrically connected to the conductive member.

[0017] According to the linear motor of some embodiments of the present invention, in the circumferential direction of the stator core shaft, the first boss, the second boss and the third boss are spaced apart to define a plurality of side holes, and the extension portion is located in the side hole.

[0018] According to the linear motor of some embodiments of the present invention, the position detection assembly further includes an inductive reading head, which is disposed at an axial end of the movable assembly in the moving direction of the movable assembly, and the inductive reading head is coupled to the inductive member to detect the position of the movable assembly.

[0019] According to the linear motor of some embodiments of the present invention, the induction element includes a plurality of magnetic steels arranged in sequence along the axial direction.

[0020] According to the linear motor of some embodiments of the present invention, the mover assembly includes a shell, at least a portion of the stator assembly is located in the shell, a wire pressing plate is provided at the end of the shell, the wire pressing plate is fixed to the shell and the wiring harness of the induction reading head is clamped between the wire pressing plate and the shell.

[0021] According to the linear motor of some embodiments of the present utility model, the induction component is a magnetic induction component.

[0022] The utility model also provides a suspension system.

[0023] A suspension system according to an embodiment of the utility model includes a linear motor according to any of the above embodiments.

[0024] The utility model further provides a vehicle.

[0025] A vehicle according to an embodiment of the utility model comprises a suspension system according to any of the above embodiments.

[0026] The suspension system, the vehicle and the linear motor have the same advantages as those of the prior art and will not be elaborated here.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] Figure 1 is a cross-sectional view of a linear motor according to an embodiment of the utility model;

[0030] Figure 2 is a cross-sectional view of the installation of the conductive assembly and the stator core shaft according to an embodiment of the utility model;

[0031] Figure 3 It is a schematic diagram of the installation of the induction element according to the embodiment of the utility model;

[0032] Figure 4 It is a schematic diagram of the installation of the stator assembly and the conductive assembly according to an embodiment of the utility model;

[0033] Figure 5 is a schematic diagram of a conductive component according to an embodiment of the utility model;

[0034] Figure 6 is a schematic diagram of an electrical connector according to an embodiment of the utility model;

[0035] Figure 7 yes Figure 1 A partial enlarged view of point A in the middle.

[0036] Reference numerals:

[0037] Linear motor 100,

[0038] Conductive component 1, insulating base 11, avoidance space 111, first rib 112, insulating column 113, stop rib 1131, extension portion 114, opening 1141, conductive member 12, connecting portion 13,

[0039] stator assembly 2, stator core shaft 21, first end 21a, first shaft section 211, second shaft section 212, shaft wall 213, fixing groove 2131, wire hole 2132, first chamber 214, fixing portion 215, first boss 216, second boss 217, third boss 218, side hole 219, stator winding 22, three-phase lead wire 221,

[0040] The movable subassembly 3, the outer shell 31, the wire pressing plate 32, the electrical connector 4, the welding head 41, the welding flange 42, the position detection assembly 5, the induction component 51, the magnetic steel 511, the induction reading head 52, the wiring harness 521, and the cover 6. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] Hereinafter, a linear motor 100 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0043] like Figure 1-Figure 7As shown, the linear motor 100 according to the embodiment of the utility model includes: a mover assembly 3, a stator assembly 2, a conductive assembly 1 and a position detection assembly 5, the stator assembly 2 includes a stator core shaft 21, the stator core shaft 21 includes a shaft wall 213, the stator core shaft 21 includes a first chamber 214 surrounded by the shaft wall 213; the conductive member 12 is suitable for being electrically connected to the motor controller; and the position detection assembly 5 includes a sensing member 51, the sensing member 51 is used to detect the position of the mover assembly 3; wherein, one of the sensing member 51 and the conductive assembly 1 is fixedly disposed in the first chamber 214, and the other is fixedly disposed on the outer peripheral wall of the shaft wall 213.

[0044] Therefore, the conductive component 1 is a high voltage, while the position detection component 5 is generally a low voltage. By isolating the strong current and the weak current, the interference to the induction component 51 can be reduced, which is beneficial to improving the detection accuracy of the induction component 51 and improving the reliability of the linear motor 100.

[0045] In some embodiments, the sensing element 51 is a magnetic sensing element, such as a magnetic strip or a magnetic grid. The electromagnetic position sensor is also easily affected by the magnetic field of the motor, so isolating the sensing element 51 from the conductive component 1 is critical to detection accuracy.

[0046] First, refer to Figure 1-Figure 2 As shown, the linear motor 100 includes a mover assembly 3 and a stator assembly 2, the mover assembly 3 is suitable for being movably sleeved on the outside of the stator assembly 2, the stator assembly 2 includes a stator core shaft 21, the stator core shaft 21 includes a first shaft segment 211 and a second shaft segment 212, the first shaft segment 211 has a shaft wall 213, and the first shaft segment 211 is provided with a first chamber 214 surrounded by the shaft wall 213, and the stator winding 22 is sleeved on the outside of the second shaft segment 212.

[0047] The linear motor 100 further includes a conductive component 1 and a position detection component 5. The conductive component 1 is mounted on the stator core shaft 21. One end of the conductive component 1 is suitable for being electrically connected to the motor controller and the other end is electrically connected to the stator winding 22, so that the motor controller can be electrically connected to the stator winding 22 through the conductive component 1, so that the motor controller can selectively energize the stator winding 22. The position detection component 5 is mounted on the stator core shaft 21. The position detection component 5 includes an induction member 51. The induction member 51 can detect the position of the actuator component 3 by electromagnetic induction, thereby determining the working state of the linear motor 100.

[0048] Among them, one of the induction member 51 and the conductive component 1 can be fixedly installed in the first chamber 214, and the other can be fixedly installed on the outer peripheral wall of the shaft wall 213. Specifically, the induction member 51 can be fixedly installed in the first chamber 214, and the conductive component 1 can be fixedly installed on the outer peripheral wall of the shaft wall 213; or, the conductive component 1 can be fixedly installed in the first chamber 214, and the induction member 51 can be installed on the outer peripheral wall of the shaft wall 213, and the present application does not limit this.

[0049] According to the linear motor 100 of the embodiment of the utility model, the induction component 51 and the conductive component 1 are respectively arranged on the inner and outer sides of the shaft wall 213, so that the induction component 51 and the conductive component 1 can be isolated, thereby avoiding the situation where the induction component 51 and the conductive component 1 are conductive and causing a malfunction, and reducing the interference to the induction component 51, which is beneficial to improving the detection accuracy of the induction component 51 and improving the reliability of the linear motor 100.

[0050] In some embodiments of the present invention, the sensing element 51 is disposed on the outer peripheral wall of the shaft wall 213, and the outer peripheral wall of the shaft wall 213 is provided with a fixing groove 2131, and the sensing element 51 is placed in the fixing groove 2131. Figure 2-Figure 3 As shown, a fixing groove 2131 can be provided on the outer peripheral wall of the shaft wall 213 , and the sensing element 51 is matched with the fixing groove 2131 , so that the sensing element 51 can be placed in the fixing groove 2131 to be provided on the outer peripheral wall of the shaft wall 213 , and the conductive component 1 can be fixed in the first chamber 214 .

[0051] Through the above arrangement, the sensing element 51 can be directly opposite to the mover assembly 3 , which is beneficial to improving the detection effect of the sensing element 51 , and can fully utilize the radial space of the stator core shaft 21 , which is beneficial to reducing the radial size of the stator core shaft 21 .

[0052] In some embodiments of the present invention, the linear motor 100 of the present invention further includes a cover 6, and the cover 6 covers the induction member 51. For example, referring to Figure 2-Figure 3 As shown, the linear motor 100 further includes a cover 6, which can be made of insulating materials such as rubber, and is disposed on the outer peripheral wall of the shaft wall 213, and the cover 6 can at least cover the outer peripheral wall of the induction member 51 to separate the mover assembly 3 from the induction member 51. In this way, the detection effect can be guaranteed and the reliability of the linear motor 100 can be improved.

[0053] In some embodiments of the present invention, Figure 2-Figure 3 As shown, the cover 6 can be constructed in a cylindrical shape, and the cover 6 is used to cover the outer peripheral wall of the stator core shaft 21 to separate the outer peripheral wall of the stator core shaft 21 from the mover assembly 3. In this way, the stator core shaft 21 can be fully protected, which is conducive to improving the reliability of the linear motor 100.

[0054] In some embodiments of the present invention, the conductive component 1 is fixed in the first chamber 214 , and the conductive component 1 includes a conductive part 12 and an insulating base 11 wrapping the conductive part 12 . The inner peripheral wall of the stator core shaft 21 is provided with a fixing portion 215 , and the insulating base 11 is fixed to the fixing portion 215 .

[0055] For example, refer to Figure 4 As shown, the conductive component 1 is matched with the first chamber 214 so that the conductive component 1 can be installed in the first chamber 214. The conductive component 1 includes a conductive member 12 and an insulating base 11. The insulating base 11 can be injection molded so that the insulating base 11 can be wrapped around the outside of the conductive member 12 to separate the conductive member 12 from the stator core shaft 21. Among them, a fixing portion 215 can be provided on the inner peripheral wall of the stator core shaft 21, so that the insulating base 11 can be fixed on the fixing portion 215, thereby being fixedly connected to the stator core shaft 21. In this way, the installation stability of the stator core shaft 21 can be improved, and the reliability of the linear motor 100 can be improved.

[0056] For example, the fixing portion 215 can be constructed as a snap-fit ​​structure so that the fixing portion 215 can be snap-fitted with the insulating base 11; the fixing portion 215 can also be constructed as a threaded structure so that the fixing portion 215 can be threadedly fitted with the insulating base 11, and the present application does not impose any restrictions on this.

[0057] In some embodiments of the present invention, Figure 4 As shown, the fixing portion 215 and the stator core shaft 21 can be set as an integral part. Through the above arrangement, during the installation process, the installation of the conductive component 1 and the stator core shaft 21 can be completed by connecting the conductive component 1 with the fixing portion 215, which is conducive to improving the assembly convenience of the linear motor 100, and can improve the installation stability of the stator core shaft 21 and the conductive component 1, and improve the reliability of the linear motor 100.

[0058] In some embodiments of the present invention, Figure 2 As shown, the conductive member 12 can be arranged close to the side of the insulating base 11 away from the sensing member 51. Thus, the distance between the conductive member 12 and the sensing member 51 can be increased, further reducing the interference of the conductive component 1 on the sensing member 51 and improving the detection accuracy of the sensing member 51.

[0059] In some embodiments of the utility model, the fixing portion 215 is arranged near the axial first end 21a of the stator core shaft 21, and the outer peripheral wall of the insulating base 11 is provided with an escape space 111 extending along the axial direction, and the escape space 111 is used to avoid the fixing portion 215 to facilitate the installation of the conductive component 1 from the first end 21a into the first chamber 214.

[0060] For example, refer to Figure 4-Figure 5 As shown, the first chamber 214 is suitable for forming an open mouth at the axial first end 21a of the stator core shaft 21, so that the conductive component 1 can be installed in the first chamber 214 through the open mouth, and the fixing portion 215 is arranged near the first end 21a, and the fixing portion 215 protrudes radially inward from the shaft wall 213 of the stator core shaft 21.

[0061] At the same time, an axially extending escape space 111 may be provided on the outer peripheral wall of the insulating base 11, the escape space 111 is recessed radially inward, and a connecting portion 13 is provided at one end of the escape space 111. When the conductive component 1 is loaded into the first chamber 214, the escape space 111 may escape the fixing portion 215, so that the conductive component 1 may be installed from the first end 21a into the first chamber 214, and after being installed in place, the connecting portion 13 may be supported on and connected to the fixing portion 215, thereby connecting the insulating base 11 to the stator core shaft 21. Thus, stable installation of the conductive component 1 may be achieved.

[0062] In some embodiments of the utility model, the electric wire motor may further include a fixed connector (not shown in the figure). When the conductive component 1 is installed in the first chamber 214, the first fixed connector may be sequentially inserted into the connecting portion 13 and the fixing portion 215, and the connecting portion 13 is fixedly connected to the fixing portion 215, so that the conductive component 1 can be fixedly connected to the stator core shaft 21. Of course, the fixed connector and the connecting portion 13 may also be integrally formed, and the present application does not limit this.

[0063] The first fixing connector can be configured as a threaded connector, such as a bolt or a screw, etc. A threaded hole is formed on the fixing portion 215, and similarly, the connecting portion 13 can be configured as a threaded hole, so as to fix the conductive component 1 to the stator core shaft 21 through the first fixing connector. In this way, the installation stability of the conductive component 1 can be improved.

[0064] In some embodiments of the present invention, the inner circumferential wall of the stator core shaft 21 is provided with a radially inwardly protruding first boss 216 , and the insulating base 11 includes a first rib 112 located between two adjacent avoidance spaces 111 , and the first rib 112 abuts against the first boss 216 .

[0065] For example, refer to Figure 2 and Figure 5As shown, the inner circumferential wall of the stator core shaft 21 is provided with a first boss 216, and the first boss 216 is radially protruding inwardly, and the insulating base 11 is provided with at least two escape spaces 111, and a first rib 112 is provided between two adjacent escape spaces 111, and the first rib 112 is radially protruding outwardly and is used to separate the two escape spaces 111. When the conductive component 1 is installed in the first chamber 214, the first rib 112 is opposite to the first boss 216, and the first rib 112 can stop on the inner circumferential wall of the first boss 216 to be positioned and matched with the stator core shaft 21. Through the above arrangement, the installation stability of the stator core shaft 21 can be improved, and the reliability of the linear motor 100 can be improved.

[0066] In some embodiments of the utility model, the insulating base 11 also includes an insulating cylinder 113, one side of the insulating cylinder 113 is connected to the first rib 112, and the other side of the insulating cylinder 113 is provided with a plurality of arc-shaped stop ribs 1131; the inner circumferential wall of the stator core shaft 21 is also provided with a radially inwardly protruding second boss 217 and a second boss 217, and the plurality of stop ribs 1131 stop at the second boss 217 and the third boss 218.

[0067] For example, refer to Figure 2 and Figure 5 As shown, the insulating base 11 further includes an insulating cylinder 113, one side of the insulating cylinder 113 is connected to the first rib 112 and is suitable for defining an avoidance space 111, and the other side of the insulating cylinder 113 is provided with an arc-shaped stop rib 1131, and there are multiple stop ribs 1131, and the multiple stop ribs 1131 are spaced apart along the axial direction of the insulating cylinder 113. At the same time, a second boss 217 and a third boss 218 can be provided on the inner circumferential wall of the stator core shaft 21, and the second boss 217 and the third boss 218 are both configured to protrude inwardly in the radial direction, and the first boss 216, the second boss 217 and the third boss 218 are spaced apart in the circumferential direction. When the conductive component 1 is installed in the first chamber 214 , the second boss 217 and the third boss 218 can be arranged opposite to the abutment rib 1131 so that the plurality of first ribs 112 can abut against the inner circumferential wall of the second boss 217 and the inner circumferential wall of the third boss 218 .

[0068] It can be understood that the first convex rib 112 and the stop rib 1131 can cooperate with the stator core shaft 21 from both sides to improve the installation stability of the conductive component 1.

[0069] In some embodiments of the present invention, an end of the insulating column 113 away from the fixing portion 215 is provided with an extension portion 114 , one end of the conductive member 12 is disposed in the extension portion 114 , and a radial outer peripheral wall of the extension portion 114 is provided with an opening 1141 to expose the conductive member 12 .

[0070] For example, refer to Figure 2 , Figure 4 and Figure 5 As shown, the first boss 216, the second boss 217 and the third boss 218 are arranged at intervals along the circumferential direction of the stator core shaft 21, and a side hole 219 is provided between at least two of the first boss 216, the second boss 217 and the third boss 218. At the same time, an extension portion 114 is provided at one end of the insulating column 113 away from the fixing portion 215, and the extension portion 114 is arranged corresponding to the side hole 219. When the conductive component 1 is installed in the first chamber 214, at least part of the extension portion 114 can extend into the side hole 219 and be limitedly matched with the stator core shaft 21 along the circumferential direction, thereby preventing the conductive component 1 and the stator core shaft 21 from rotating relative to each other.

[0071] Among them, one end of the conductive member 12 is arranged in the extension portion 114, and the radial outer peripheral wall of the extension portion 114 is provided with an opening 1141, and the opening 1141 is arranged opposite to the end of the conductive member 12 so that the conductive member 12 is exposed, so that the conductive member 12 can be electrically connected to the stator winding 22 through the opening 1141. Through the above arrangement, the distance between the conductive member 12 and the stator winding 22 can be shortened, which is conducive to reducing the difficulty of installation and improving the practicality of the linear motor 100.

[0072] In some embodiments of the present invention, the stator assembly 2 further includes a stator winding 22 , a three-phase lead wire 221 of the stator winding 22 is electrically connected to the conductive member 12 via an electrical connector 4 , and one end of the electrical connector 4 is located in the opening 1141 to be electrically connected to the conductive member 12 .

[0073] For example, refer to Figure 2 and Figure 4 As shown, the stator assembly 2 also includes a stator winding 22, which is arranged on the outer peripheral wall of the second shaft segment 212. The stator winding 22 is provided with a three-phase lead-out wire 221, and the three-phase lead-out wire 221 extends to one end of the stator winding 22 axially close to the first shaft segment 211, and the stator core shaft 21 is provided with a wire hole 2132 corresponding to the three-phase lead-out wire 221, and the wire hole 2132 is connected to the side hole 219.

[0074] The linear motor 100 further includes an electrical connector 4, which can be constructed in a long strip shape and is inserted into the wire hole 2132. One end of the electrical connector 4 along the length direction is welded to the three-phase lead wire 221, and the other end can be extended into the opening 1141 and welded to the conductive member 12, so that the conductive member 12 and the stator winding 22 can be connected through the electrical connector 4. Through the above arrangement, the installation difficulty of the linear motor 100 can be reduced, and the practicality of the linear motor 100 can be improved.

[0075] In some embodiments of the present invention, Figure 4 and Figure 6As shown, a welding flange 42 may be provided at one end of the electrical connector 4 connected to the three-phase lead wire 221, so that the electrical connector 4 can be welded to the three-phase lead wire 221 through the welding flange 42, and a welding head 41 may be provided at the other end, and the welding head 41 is matched with the opening 1141, so that the welding head 41 can extend into the opening 1141 and be welded to the conductive member 12. Through the above arrangement, the connection stability of the electrical connector 4 can be improved.

[0076] It should be noted that the welding head 41 and the opening 1141 can be set to be a transition fit or an interference fit to improve the positioning accuracy of the welding head 41 and ensure the welding quality. In addition, the side of the welding head 41 away from the conductive member 12 can also be set lower than the outer peripheral wall of the extension portion 114 to avoid electrical connection between the welding head 41 and other components.

[0077] In some embodiments of the present invention, in the circumferential direction of the stator core shaft 21 , the first boss 216 , the second boss 217 and the third boss 218 are arranged at intervals to define a plurality of side holes 219 , and the extension portion 114 is located in the side hole 219 .

[0078] For example, refer to Figure 2 As shown, in the circumferential direction of the stator core shaft 21, the first boss 216, the second boss 217 and the third boss 218 are arranged at intervals, and any two adjacent ones of the first boss 216, the second boss 217 and the third boss 218 are defined with a side hole 219. Correspondingly, a plurality of extensions 114 can be provided at one end of the insulating column 113 away from the fixing portion 215, and the plurality of extensions 114 are opposite to and matched with the plurality of side holes 219 one by one. In this way, the conductive component 1 can be circumferentially limited, thereby improving the installation stability of the conductive component 1.

[0079] Specifically, the number of the side holes 219 can be three, and the three side holes 219 are arranged at intervals along the circumference of the stator core shaft 21, and at least one portion of the extension portion 114 is provided in each side hole 219, and the stator winding 22 can be provided with a plurality of winding coils, and the plurality of winding coils are divided into three groups, and the winding coils of different groups are arranged in an interlaced manner, and the conductive members 12 in the plurality of side holes 219 can correspond to and be connected to the plurality of winding coils, respectively, so as to realize a three-phase winding layout. Thus, it is beneficial to realize a reasonable layout of the linear motor 100.

[0080] In some embodiments of the present invention, the position detection component 5 also includes an inductive reading head 52. In the moving direction of the movable component 3, the inductive reading head 52 is arranged at the axial end of the movable component 3. The inductive reading head 52 and the inductive element 51 are coupled to detect the position of the movable component 3.

[0081] For example, refer to Figure 1As shown, the position detection assembly 5 further includes an inductive reading head 52, which is disposed at the axial end of the mover assembly 3 in the moving direction of the mover assembly 3, and is disposed opposite to the inductive element 51 along the radial direction of the stator core shaft 21, and is used to couple with the inductive element 51, so that the inductive reading head 52 can detect the position of the mover assembly 3, thereby determining the working state of the linear motor 100. Through the above arrangement, the working reliability of the linear motor 100 can be improved.

[0082] In some embodiments of the present invention, Figure 5 As shown, the induction member 51 may include a plurality of magnetic steels 511, which are sequentially arranged along the axial direction and together form a magnetic field. During the operation of the linear motor 100, the induction reading head 52 may obtain magnetic field information to detect the position of the moving subassembly 3. Through the above arrangement, the processing difficulty of the induction member 51 may be reduced, and when part of the magnetic steels 511 are demagnetized, the induction member 51 may still form a magnetic field, thereby improving the reliability of the position detection assembly 5.

[0083] In some embodiments of the present invention, the mover assembly 3 includes a housing 31, at least a portion of the stator assembly 2 is located in the housing 31, a wire pressing plate 32 is provided at the end of the housing 31, the wire pressing plate 32 is fixed to the housing 31, and the wiring harness 521 of the induction reading head 52 is clamped between the wire pressing plate 32 and the housing 31.

[0084] For example, refer to Figure 1 and Figure 7 As shown, the mover assembly 3 includes a housing 31, which is cylindrical in structure. The housing 31 can be sleeved on the outside of the stator assembly 2 so that at least a portion of the stator assembly 2 can be located in the housing 31. For example, the stator winding 22 can be arranged in the housing 31 to protect the stator winding 22. The inductive reading head 52 is connected to the vehicle circuit through a wiring harness 521. The axial end of the housing 31 is provided with a wire pressing plate 32, which is connected to the housing 31. The wire harness 521 of the inductive reading head 52 can be clamped between the wire pressing plate 32 and the housing 31 so that the wire pressing plate 32 can constrain the wire harness 521. In this way, the safety of the linear motor 100 can be improved.

[0085] The utility model also provides a suspension system.

[0086] The suspension system according to the embodiment of the present invention comprises the linear motor 100 according to any one of the above embodiments.

[0087] According to the suspension system of the embodiment of the utility model, the sensing part 51 and the conductive component 1 are respectively arranged on the inner and outer sides of the shaft wall 213, so that the sensing part 51 and the conductive component 1 can be isolated, thereby avoiding the situation where the sensing part 51 and the conductive component 1 are conductive and causing a malfunction, and reducing the interference to the sensing part 51, which is beneficial to improving the detection accuracy of the sensing part 51, improving the reliability of the linear motor 100, and improving the overall performance of the suspension system.

[0088] The utility model further provides a vehicle.

[0089] A vehicle according to an embodiment of the utility model comprises a suspension system according to any one of the above embodiments.

[0090] According to the vehicle of the embodiment of the utility model, the sensing part 51 and the conductive component 1 are respectively arranged on the inner and outer sides of the shaft wall 213, so that the sensing part 51 and the conductive component 1 can be isolated, thereby avoiding the situation where the sensing part 51 and the conductive component 1 are conductive and causing a malfunction, and reducing the interference to the sensing part 51, which is beneficial to improving the detection accuracy of the sensing part 51, improving the reliability of the linear motor 100, improving the overall performance of the suspension system, and ensuring the reliability of the vehicle.

[0091] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0092] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0093] In the description of the present invention, "plurality" means two or more.

[0094] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0095] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0097] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A linear motor (100), characterized in that: include: Movable subassembly (3); A stator assembly (2), the stator assembly (2) comprising a stator core shaft (21), the stator core shaft (21) comprising an axial wall (213), and the stator core shaft (21) comprising a first chamber (214) surrounded by the axial wall (213); A conductive component (1), the conductive component (1) being suitable for being electrically connected to a motor controller; and A position detection component (5), the position detection component (5) comprising a sensing element (51), the sensing element (51) being used to detect the position of the mover component (3); Wherein, one of the induction element (51) and the conductive component (1) is fixedly arranged in the first chamber (214), and the other is fixedly arranged on the outer peripheral wall of the shaft wall (213).

2. The linear motor (100) according to claim 1, characterized in that: The sensing element (51) is arranged on the outer peripheral wall of the shaft wall (213); the outer peripheral wall of the shaft wall (213) is provided with a fixing groove (2131), and the sensing element (51) is placed in the fixing groove (2131).

3. The linear motor (100) according to claim 2, characterized in that: It also comprises a covering member (6), wherein the covering member (6) covers the sensing member (51).

4. The linear motor (100) according to claim 3, characterized in that: The cover (6) is externally mounted on the stator core shaft (21).

5. The linear motor (100) according to claim 1, characterized in that: The conductive component (1) is fixedly arranged in the first chamber (214), the conductive component (1) comprises a conductive part (12) and an insulating base (11) wrapping the conductive part (12), the inner peripheral wall of the stator core shaft (21) is provided with a fixing portion (215), and the insulating base (11) is fixed to the fixing portion (215).

6. The linear motor (100) according to claim 5, characterized in that: The fixing portion (215) and the stator core shaft (21) are an integral part.

7. The linear motor (100) according to claim 5, characterized in that: The conductive element (12) is arranged close to a side of the insulating base (11) away from the inductive element (51).

8. The linear motor (100) according to claim 5, characterized in that: The fixing portion (215) is arranged close to the axial first end portion (21a) of the stator core shaft (21), and the outer peripheral wall of the insulating base (11) is provided with an axially extending escape space (111), and the escape space (111) is used to escape the fixing portion (215) so as to facilitate the installation of the conductive component (1) from the first end portion (21a) into the first chamber (214).

9. The linear motor (100) according to claim 8, characterized in that: The inner peripheral wall of the stator core shaft (21) is provided with a radially inwardly protruding first boss (216), and the insulating base (11) comprises a first convex rib (112) located between two adjacent avoidance spaces (111), and the first convex rib (112) abuts against the first boss (216).

10. The linear motor (100) according to claim 9, characterized in that: The insulating base (11) further comprises an insulating column (113), one side of the insulating column (113) is connected to the first convex rib (112), and the other side of the insulating column (113) is provided with a plurality of arc-shaped stop ribs (1131); The inner peripheral wall of the stator core shaft (21) is also provided with a radially inwardly protruding second boss (217) and a third boss (218), and a plurality of abutment ribs (1131) abut against the second boss (217) and the third boss (218).

11. The linear motor (100) according to claim 10, characterized in that: An extension portion (114) is provided at one end of the insulating column (113) that is away from the fixing portion (215), one end of the conductive member (12) is disposed in the extension portion (114), and an opening (1141) is provided on a radial outer peripheral wall of the extension portion (114) to expose the conductive member (12).

12. The linear motor (100) according to claim 11, characterized in that: The stator assembly (2) further comprises a stator winding (22), wherein a three-phase lead wire (221) of the stator winding (22) is electrically connected to the conductive member (12) via an electrical connector (4), and one end of the electrical connector (4) is located in the opening (1141) to be electrically connected to the conductive member (12).

13. The linear motor (100) according to claim 11, characterized in that: In the circumferential direction of the stator core shaft (21), the first boss (216), the second boss (217) and the third boss (218) are arranged at intervals to define a plurality of side holes (219), and the extension portion (114) is located in the side hole (219).

14. The linear motor (100) according to claim 1, characterized in that: The position detection component (5) further comprises an inductive reading head (52). In the moving direction of the movable component (3), the inductive reading head (52) is arranged at an axial end of the movable component (3). The inductive reading head (52) and the inductive element (51) are coupled to detect the position of the movable component (3).

15. The linear motor (100) according to claim 14, characterized in that: The induction component (51) comprises a plurality of magnetic steels (511) arranged in sequence along the axial direction.

16. The linear motor (100) according to claim 14, characterized in that: The mover assembly (3) comprises a housing (31), at least a portion of the stator assembly (2) is located in the housing (31), a wire pressing plate (32) is provided at the end of the housing (31), the wire pressing plate (32) is fixed to the housing (31), and a wiring harness (521) of the inductive reading head (52) is clamped between the wire pressing plate (32) and the housing (31).

17. The linear motor (100) according to any one of claims 1 to 16, characterized in that: The induction element (51) is a magnetic induction element.

18. A suspension system, characterized in that: It comprises a linear motor (100) according to any one of claims 1-17.

19. A vehicle, characterized in that: Comprising a suspension system according to claim 18.

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