Stator assembly, linear motor, shock absorber and vehicle

Abstract

The utility model discloses a stator assembly, a linear motor, a shock absorber and a vehicle. The stator assembly comprises a stator body and a winding assembly. A stator groove which extends along the circumferential direction of the stator body and is opened in the radial direction is formed in the stator body, a first surface and a second surface are formed on the stator body, the first surface is constructed as the side wall of the stator groove, the second surface is constructed as the bottom wall of the stator groove, and the winding assembly is arranged in the stator groove. According to the stator assembly designed by the utility model, the space utilization rate in the stator slots can be improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a stator assembly, a linear motor, a shock absorber and a vehicle. Background Art

[0002] In the related art, the stator shaft of the linear motor adopts an integrated iron core. During the assembly of the stator shaft, the winding is arranged in the wire slot of the iron core, and the winding is insulated and protected by insulating paper. However, the insulating paper is difficult to occupy the space in the wire slot at the corners of the wire slot, which reduces the space utilization rate of the wire slot. 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 stator assembly. The stator assembly designed according to the utility model can improve the space utilization rate in the stator slot.

[0004] The utility model also provides a linear motor with the stator assembly.

[0005] The utility model also provides a vibration damper having the linear motor.

[0006] The utility model also provides a vehicle with the shock absorber.

[0007] According to the utility model, the stator assembly includes: a stator body, on which a stator slot extending circumferentially along the stator body and open in the radial direction is formed, the stator body is formed with a first surface and a second surface, the first surface is configured as a side wall of the stator slot, and the second surface is configured as a bottom wall of the stator slot; a winding assembly, the winding assembly is arranged in the stator slot; wherein the first surface is provided with a first avoidance groove at an edge close to the second surface and / or the second surface is provided with a first avoidance groove at an edge close to the first surface.

[0008] According to the stator assembly of the utility model, by arranging the first avoidance groove at the edge of the first surface close to the second surface or the edge of the second surface close to the first surface, the stator slot has an avoidance space recessed away from one side of the stator slot at the angle between the first surface and the second surface, which can avoid the corners of the winding assembly, thereby ensuring that the winding assembly can be arranged at the corners of the stator slot correspondingly, thereby improving the space utilization in the stator slot, that is, improving the slot fill rate in the stator slot.

[0009] According to some embodiments of the utility model, the winding assembly includes: a retaining frame, the retaining frame is arranged in the stator slot, the outer surface of the retaining frame is abutted against the first surface and the second surface at the same time; and a winding, the winding is wrapped by the retaining frame.

[0010] According to some embodiments of the present invention, the stator body includes: a stator core block, the stator core block is constructed as a plurality of stator core blocks and the plurality of stator core blocks are stacked in sequence along the axial direction, and the stator slot is formed between two adjacent stator core blocks.

[0011] According to some embodiments of the utility model, the first avoidance groove is arranged on the first surface, and a first inclined surface away from the second surface is arranged in the first avoidance groove, and the first inclined surface is inclined in a direction close to the second surface toward a direction recessed into the first surface; or the first avoidance groove is arranged on the second surface, and a first inclined surface away from the first surface is arranged in the first avoidance groove, and the first inclined surface is inclined in a direction close to the first surface toward a direction recessed into the first surface.

[0012] According to some embodiments of the present utility model, a first tool retreat surface corresponding to the first inclined surface is arranged in the first avoidance groove, and the first tool retreat surface is configured as a curved surface.

[0013] According to some embodiments of the present invention, the stator core block includes a stator core block body and a yoke, the yoke is formed on one side of the stator core block body in thickness, the stator slot is defined by the stator core block body of two adjacent stator core blocks and the yoke of one of the stator core blocks of two adjacent stator core blocks, the surfaces of the stator core block bodies of two adjacent stator core blocks facing each other are configured as the first surface, and the surface of the stator slot defined by the yoke of one of the two adjacent stator core blocks is configured as the second surface; wherein the thickness of the stator core block body is greater than the thickness of the yoke and the first avoidance groove is arranged on the first surface; or the thickness of the yoke is greater than the thickness of the stator core block body and the first avoidance groove is arranged on the second surface.

[0014] According to some embodiments of the present invention, a radial inner edge of the first surface is connected to the yoke, and a radial outer edge of the first surface is provided with a toothed shoe.

[0015] According to some embodiments of the utility model, a third surface connected to the first surface is formed on the inner side of the tooth boot; wherein a second avoidance groove is provided at the edge of the first surface close to the third surface and / or a second avoidance groove is provided at the edge of the third surface close to the first surface.

[0016] According to some embodiments of the utility model, the second avoidance groove is arranged on the first surface, and a second inclined surface away from the third surface is arranged in the second avoidance groove, and the second inclined surface is inclined in a direction close to the third surface toward a direction recessed into the first surface; or the second avoidance groove is arranged on the third surface, and a second inclined surface away from the first surface is formed in the second avoidance groove, and the second inclined surface is inclined in a direction close to the third surface toward a direction recessed into the third surface.

[0017] According to some embodiments of the present invention, a second tool retreat surface corresponding to the second inclined surface is arranged in the second avoidance groove, and the second tool retreat surface is constructed as a curved surface.

[0018] According to some embodiments of the present invention, the thickness of the stator core stack body is greater than the axial dimension of the tooth shoe and the second avoidance groove is arranged on the first surface; or the thickness of the tooth shoe is greater than the thickness of the stator core stack body and the second avoidance groove is arranged on the third surface.

[0019] According to some embodiments of the present invention, the retaining frame is configured as an insulating member.

[0020] The following briefly describes the linear motor according to the second embodiment of the utility model.

[0021] The linear motor according to the utility model includes the stator assembly described in any one of the above embodiments. Since the linear motor according to the utility model is provided with the stator assembly of the above embodiments, the stator assembly is provided with a first avoidance groove at the edge of the first surface close to the second surface or the second surface is provided with a first avoidance groove at the edge of the second surface close to the first surface, so that the stator slot has an avoidance space that is recessed away from one side of the stator slot at the angle between the first surface and the second surface, which can avoid the corners of the winding assembly, thereby ensuring that the winding assembly can be arranged at the corners of the stator slot corresponding to the corners of the stator slot, thereby improving the space utilization in the stator slot, that is, improving the slot fill rate in the stator slot.

[0022] According to some embodiments of the present invention, a cooling channel for circulating a cooling medium is formed in the stator core shaft.

[0023] The shock absorber according to the third embodiment of the utility model is briefly described below.

[0024] The shock absorber according to the utility model includes the linear motor described in any one of the above-mentioned embodiments. Since the linear motor according to the utility model is provided with the linear motor described in the above-mentioned embodiments, wherein the stator assembly is provided with a first avoidance groove through the first surface at the edge close to the second surface or the second surface at the edge close to the first surface, so that the stator slot has an avoidance space recessed away from one side of the stator slot at the angle between the first surface and the second surface, which can avoid the corners of the winding assembly, thereby ensuring that the winding assembly can be arranged at the corners of the stator slot correspondingly, thereby improving the space utilization in the stator slot, that is, improving the slot fill rate in the stator slot.

[0025] The following briefly describes a vehicle according to an embodiment of the fourth aspect of the utility model.

[0026] The vehicle according to the utility model includes the shock absorber described in any one of the above embodiments. Since the linear motor according to the utility model is provided with the shock absorber of the above embodiments, wherein the stator assembly is provided with a first avoidance groove through the first surface at the edge close to the second surface or the second surface at the edge close to the first surface, so that the stator slot has an avoidance space recessed away from one side of the stator slot at the angle between the first surface and the second surface, which can avoid the corners of the winding assembly, thereby ensuring that the winding assembly can be arranged at the corners of the stator slot corresponding to the corners, thereby improving the space utilization in the stator slot, that is, improving the slot fill rate in the stator slot.

[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 It is a cross-sectional view of a stator assembly according to an embodiment of the utility model.

[0030] Figure 2 yes Figure 1 A partial structural diagram of the stator assembly shown;

[0031] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure shown in the middle A;

[0032] Figure 4 yes Figure 2 A schematic diagram of the enlarged structure shown at B;

[0033] Figure 5 It is a structural schematic diagram of a linear motor according to an embodiment of the utility model.

[0034] Reference numerals:

[0035] Linear motor 1000,

[0036] Stator assembly 100,

[0037] Stator slot 10,

[0038] stator body 11, first surface 110a, second surface 110b, third surface 110c,

[0039] The first avoidance groove 111, the first inclined surface 1111, the first retreat surface 1112,

[0040] stator core block 112, stator core block body 1121, yoke 1122, tooth shoe 1123,

[0041] The second avoidance groove 113, the second inclined surface 1131, the second backing surface 1132,

[0042] Winding assembly 12 , retaining frame 121 , winding 122 .

[0043] Stator core shaft 200 . DETAILED DESCRIPTION

[0044] 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.

[0045] In the description of the present invention, it is necessary to understand that the terms "length", "thickness", "up", "down", "bottom", "inside", "outside", "axial", "radial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0049] A stator assembly 100 , a linear motor 1000 , a shock absorber and a vehicle according to embodiments of the present invention will be described below with reference to the accompanying drawings.

[0050] like Figure 1 , Figure 2 As shown, the stator assembly 100 according to the embodiment of the present invention includes: a stator body 11 and a winding assembly 12 .

[0051] The stator body 11 is formed with a stator slot 10 extending circumferentially of the stator body 11 and open in the radial direction. The stator body 11 is formed with a first surface 110a and a second surface 110b. The first surface 110a is configured as a side wall of the stator slot 10, and the second surface 110b is configured as a bottom wall of the stator slot 10. The winding assembly 12 is disposed in the stator slot 10.

[0052] It should be noted that, refer to Figure 1 , Figure 2 As shown, with the axis L of the stator assembly 100 as a reference, the side of the stator slot 10 that is parallel to the axis L and has the smallest distance from the axis is the bottom wall, and the side of the stator slot 10 that intersects with the axis is the side wall.

[0053] It is understandable that due to process limitations, the winding assembly 12 is prone to dimensional deviation at the corners. Similarly, dimensional deviation is prone to occur at the corners of the stator slot 10. For example, Figure 1 , Figure 2In the example, in the cross section passing through the axis L, the stator slot 10 is rectangular, and correspondingly, the winding assembly 12 disposed in the stator slot 10 is also rectangular. However, due to process limitations, the stator slot 10 and the winding assembly 12 are prone to dimensional deviations at the corners, so that when the winding assembly 12 is disposed in the stator slot 10, the corners of the winding assembly 12 do not match the corner shapes of the stator slot 10, and the winding assembly 12 cannot be disposed at the corners of the stator slot 10, which increases the vacant space in the stator slot 10 and reduces the space utilization rate in the stator slot 10.

[0054] Therefore, by providing a first avoidance groove 111 at the edge of the first surface 110a close to the second surface 110b, or providing a first avoidance groove 111 at the edge of the second surface 110b close to the first surface 110a, or providing the first avoidance groove 111 at the edge of the first surface 110a close to the second surface 110b and at the edge of the second surface 110b close to the first surface 110a at the same time, an avoidance space can be formed at the angle between the first surface 110a and the second surface 110b, and the stator slot 10 can avoid the corresponding corners of the winding assembly 12 at the angle between the first surface 110a and the second surface 110b.

[0055] The stator assembly 100 of the present application has a first avoidance groove 111 set at the edge of the first surface 110a close to the second surface 110b or the second surface 110b set at the edge of the first surface 110a close to the first surface 110a, so that the stator slot 10 has an avoidance space that is recessed away from the side of the stator slot 10 at the angle between the first surface 110a and the second surface 110b, which can avoid the corners of the winding assembly 12, thereby ensuring that the winding assembly 12 can be correspondingly arranged at the corners of the stator slot 10, thereby improving the space utilization in the stator slot 10, that is, improving the slot fill rate in the stator slot 10.

[0056] According to some embodiments of the present invention, Figure 2 As shown, the winding assembly 12 includes: a retainer 121 and a winding 122. The retainer 121 is disposed in the stator slot 10, and the outer surface of the retainer 121 abuts against the first surface 110a and the second surface 110b at the same time. The winding 122 is wrapped by the retainer 121.

[0057] It is understandable that the first avoidance groove 111 is provided so that the stator slot 10 can avoid the corner of the retainer 121 at the angle between the first surface 110a and the second surface 110b, so that the outer surface of the retainer 121 can be kept against the first surface 110a and the second surface 110b.

[0058] Thus, by making the outer surface of the retainer 121 stop against the first surface 110a and the second surface 110b at the same time, the setting position of the retainer 121 in the stator slot 10 can be positioned and support can be provided for the retainer 121, and the position of the retainer 121 in the stator slot 10 remains stable. Under the premise that the position of the retainer 121 is stable, the winding 122 is wrapped by the retainer 121, so that the winding 122 can also remain stable along with the position of the retainer 121 in the positioning slot. Therefore, the position of the entire winding assembly 12 in the stator slot 10 remains stable, and the structure of the winding assembly 12 itself also remains stable.

[0059] According to some embodiments of the present invention, Figure 1 , Figure 2 As shown, the stator body 11 includes: a stator core block 112 , the stator core block 112 is constructed as a plurality of stator core blocks 112 and the plurality of stator core blocks 112 are stacked in sequence along the axial direction, and a stator slot 10 is formed between two adjacent stator core blocks 112 .

[0060] It should be noted that the present application does not limit the number of stator core blocks 112 to be stacked. Figure 1 The example of FIG. 1 shows a situation where two stator core blocks 112 are stacked in sequence along the axial direction.

[0061] Therefore, a stator body 11 is formed by stacking a plurality of stator core blocks 112. The axial length of the stator body 11 is affected by the number of stacked stator core blocks 112. By setting different numbers of stacked stator core blocks 112, the axial length of the stator body 11 can be set according to usage requirements.

[0062] According to some embodiments of the present invention, Figure 3 As shown, the first avoidance groove 111 is provided on the first surface 110a, and a first inclined surface 1111 away from the second surface 110b is provided in the first avoidance groove 111, and the first inclined surface 1111 is inclinedly provided in a direction close to the second surface 110b toward a direction concave into the first surface 110a. Or the first avoidance groove 111 is provided on the second surface 110b, and a first inclined surface 1111 away from the first surface 110a is provided in the first avoidance groove 111, and the first inclined surface 1111 is inclinedly provided in a direction close to the first surface 110a toward a direction concave into the first surface 110a.

[0063] Therefore, in the processing of the first avoidance groove 111 , the tool moves along the extension direction of the first inclined surface 1111 , so that the processing of the first avoidance groove 111 is easier and the process feasibility is improved.

[0064] According to some embodiments of the present invention, for example Figure 3As shown, a first tool relief surface 1112 corresponding to the first inclined surface 1111 is arranged in the first avoidance groove 111 , and the first tool relief surface 1112 is configured as a curved surface.

[0065] It can be understood that when the first avoidance groove 111 is provided on the first surface 110a, the first relief surface 1112 approaches the second surface 110b until it contacts the second surface 110b. When the first avoidance groove 111 is provided on the second surface 110b, the first relief surface 1112 approaches the second surface 110b until it contacts the first surface 110a. In other words, the first relief surface 1112 extends to the angle between the first surface 110a and the second surface 110b.

[0066] Therefore, the first tool withdrawal surface 1112 is set as a curved surface, which can be adapted to the shape of the tool in terms of technology, so that the processing of the first avoidance groove 111 is easier and the process feasibility is higher.

[0067] According to some embodiments of the present invention, Figure 2 , Figure 3 As shown, the stator core stack 112 includes a stator core stack body 1121 and a yoke 1122, wherein the yoke 1122 is formed on one side of the stator core stack body 1121 in thickness, and the stator slot 10 is defined by the stator core stack body 1121 of two adjacent stator core stacks 112 and the yoke 1122 of one of the two adjacent stator core stacks 112, and the surfaces of the stator core stack bodies 1121 of the two adjacent stator core stacks 112 facing each other are configured as a first surface 110a, and the surface of the stator slot 10 defined by the yoke 1122 of one of the two adjacent stator core stacks 112 is configured as a second surface 110b.

[0068] Therefore, the stator slot 10 is defined by two adjacent stator core blocks 112. By stacking a plurality of stator core blocks 112 along the axial direction, a plurality of stator slots 10 arranged along the axial direction can be defined. By setting different stacking numbers of stator core blocks 112, the number of stator slots 10 can be set according to usage requirements.

[0069] Among them, the thickness d1 of the stator core block body 1121 is greater than the thickness d2 of the yoke 1122 and the first avoidance groove 111 is set on the first surface 110a, or the thickness d2 of the yoke 1122 is greater than the thickness d1 of the stator core block body 1121 and the first avoidance groove 111 is set on the second surface 110b, so that the processing of the first avoidance groove 111 is easier and the process feasibility is higher. In addition, the first avoidance groove 111 is formed at a thicker position of the stator core block 112, which can reduce or avoid the impact on the magnetic circuit inside the motor.

[0070] According to some embodiments of the present invention, Figure 2 , Figure 4 As shown, the radial inner edge of the first surface 110a is connected to the yoke 1122, and the radial outer edge of the first surface 110a is provided with a toothed shoe 1123. Thus, the toothed shoe 1123 can play a blocking role at the outer edge of the first surface 110a, that is, when the winding assembly 12 is arranged in the stator slot 10, the toothed shoe 1123 can limit the position of the winding assembly 12 on the radial outer side.

[0071] According to some embodiments of the present invention, Figure 2 , Figure 4 As shown, a third surface 110c connected to the first surface 110a is formed inside the tooth shoe 1123. Thus, the tooth shoe 1123 can stop the winding assembly 12 at the third surface 110c.

[0072] It should be noted that the inner side of the tooth shoe 1123 is the side of the tooth shoe 1123 facing inward in the radial direction.

[0073] The second avoidance groove 113 is provided at the edge of the first surface 110a close to the third surface 110c, or the second avoidance groove 113 is provided at the edge of the third surface 110c close to the first surface 110a, or the second avoidance groove 113 is provided at both the edge of the first surface 110a close to the third surface 110c and the edge of the third surface 110c close to the first surface 110a. An avoidance space can be formed at the angle between the first surface 110a and the third surface 110c, and the stator slot 10 can avoid the corner corresponding to the winding assembly 12 at the angle between the first surface 110a and the third surface 110c.

[0074] Thus, by setting the second avoidance groove 113 at the edge of the first surface 110a close to the second surface 110b or the second surface 110b at the edge of the first surface 110a close to the first surface 110a, the stator slot 10 has an avoidance space that is recessed away from the side of the stator slot 10 at the angle between the first surface 110a and the third surface 110c, which can avoid the corners of the winding assembly 12, thereby ensuring that the winding assembly 12 can be correspondingly arranged at the corners of the stator slot 10, further improving the space utilization rate in the stator slot 10.

[0075] exist Figure 2 , Figure 4 In the example, the winding assembly 12 includes a retaining frame 121 and a winding 122. By forming a third surface 110c connected to the first surface 110a on the inner side of the tooth boot 1123 and providing a second avoidance groove 113, the stator slot 10 can avoid the corner of the retaining frame 121 at the angle between the third surface 110c and the second surface 110b, so that the outer surface of the retaining frame 121 can be stopped against the third surface 110c and the first surface 110a.

[0076] Furthermore, the stator slot 10 is provided with a first surface 110a, a second surface 110b and a third surface 110c, and at least one of a first avoidance groove 111 and a second avoidance groove 113 is provided, so that the outer surface of the retainer 121 can be kept against the first surface 110a, the second surface 110b and the third surface 110c at the same time. Thus, the position of the retainer 121 in the stator slot 10 is more stably limited, so that the position of the winding assembly 12 in the stator slot 10 as a whole remains stable, and the structure of the winding assembly 12 itself also remains stable.

[0077] According to some embodiments of the present invention, Figure 2 , Figure 4 As shown, the second avoidance groove 113 is provided on the first surface 110a, and a second inclined surface 1131 away from the third surface 110c is provided in the second avoidance groove 113, and the second inclined surface 1131 is inclined in a direction close to the third surface 110c toward the direction concave into the first surface 110a. Or the second avoidance groove 113 is provided on the third surface 110c, and a second inclined surface 1131 away from the first surface 110a is formed in the second avoidance groove 113, and the second inclined surface 1131 is inclined in a direction close to the third surface 110c toward the direction concave into the third surface 110c.

[0078] Therefore, in the processing of the second avoidance groove 113 , the tool moves along the extension direction of the second inclined surface 1131 , so that the processing of the second avoidance groove 113 is easier and the process feasibility is improved.

[0079] According to some embodiments of the present invention, Figure 4 As shown, a second tool relief surface 1132 corresponding to the second inclined surface 1131 is provided in the second avoidance groove 113, and the second tool relief surface 1132 is configured as a curved surface. Thus, the second tool relief surface 1132 is configured as a curved surface, which can be adapted to the shape of the tool in terms of technology, making the processing of the second avoidance groove 113 easier and more feasible.

[0080] According to some embodiments of the present invention, Figure 2 As shown, the thickness d1 of the stator core block body 1121 is greater than the thickness d3 of the tooth shoe 1123 in the axial direction and the second avoidance groove 113 is set on the first surface 110a; or the thickness d3 of the tooth shoe 1123 is greater than the thickness d1 of the stator core block body 1121 and the second avoidance groove 113 is set on the third surface 110c, so that the process of the first avoidance groove 111 is easier and the process feasibility is higher. In addition, the second avoidance groove 113 is formed at a thicker position of the stator core block 112, which can reduce or avoid the impact on the magnetic circuit inside the motor.

[0081] According to some embodiments of the present invention, the retaining frame 121 is constructed as an insulating member, so as to ensure the stability of the power supply to the winding 122 and reduce or avoid the influence on the magnetic circuit in the motor.

[0082] like Figure 5 As shown, the linear motor 1000 according to the embodiment of the present utility model comprises: a stator core shaft 200 and a stator assembly 100. The stator assembly 100 is arranged on the outer periphery of the stator core shaft 200 and is constructed as the stator assembly 100 of the above embodiment.

[0083] According to the linear motor 1000 of the embodiment of the utility model, by adopting the stator assembly 100 of the above-mentioned embodiment, a first avoidance groove 111 is set at the edge of the first surface 110a close to the second surface 110b or the second surface 110b is set at the edge of the first surface 110a close to the first surface 110a, so that the stator slot 10 has an avoidance space that is recessed away from the side of the stator slot 10 at the angle between the first surface 110a and the second surface 110b, which can avoid the corners of the winding assembly 12, thereby ensuring that the winding assembly 12 can be arranged at the corners of the stator slot 10, thereby improving the space utilization in the stator slot 10, that is, improving the slot fill rate in the stator slot 10.

[0084] Furthermore, a cooling channel (not shown in the figure) for circulating cooling medium is formed in the stator core shaft 200 .

[0085] It can be understood that the stator assembly 100 includes a winding, which is suitable for connection to an external power supply. When the linear motor 1000 is working, the winding will generate heat when it is energized. Since the stator assembly 100 is in contact with the stator core shaft 200, the heat will be transferred to the stator core shaft 200. The cooling channel can take away the heat generated by the winding, thereby reducing the heat of the linear motor 1000 during operation and improving the working stability of the linear motor 1000.

[0086] The shock absorber according to the embodiment of the utility model includes the linear motor 1000 of the above embodiment.

[0087] According to the shock absorber of the embodiment of the utility model, by adopting the linear motor 1000 of the above-mentioned embodiment, by setting the first avoidance groove 111 at the edge of the first surface 110a of the stator assembly 100 close to the second surface 110b or the edge of the second surface 110b close to the first surface 110a, the stator slot 10 has an avoidance space that is recessed away from the side of the stator slot 10 at the angle between the first surface 110a and the second surface 110b, which can avoid the corners of the winding assembly 12, thereby ensuring that the winding assembly 12 can be arranged at the corners of the stator slot 10, thereby improving the space utilization in the stator slot 10, that is, improving the slot fill rate in the stator slot 10.

[0088] A vehicle according to an embodiment of the utility model comprises the shock absorber of the above embodiment.

[0089] According to the vehicle of the embodiment of the utility model, by adopting the shock absorber of the above embodiment, by arranging the first avoidance groove 111 at the edge of the first surface 110a of the stator assembly 100 close to the second surface 110b or the edge of the second surface 110b close to the first surface 110a, the stator slot 10 has an avoidance space that is recessed away from the side of the stator slot 10 at the angle between the first surface 110a and the second surface 110b, which can avoid the corners of the winding assembly 12, thereby ensuring that the winding assembly 12 can be arranged at the corners of the stator slot 10, thereby improving the space utilization in the stator slot 10, that is, improving the slot fill rate in the stator slot 10.

[0090] The stator assembly 100 , the linear motor 1000 , the shock absorber and other components and operations of the vehicle according to the embodiment of the utility model are well known to those skilled in the art and will not be described in detail here.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0092] Although embodiments of the present invention have been shown and described above, changes, modifications, substitutions and variations may be made to the embodiments described above.

Claims

1. A stator assembly, characterized in that: include: A stator body (11), the stator body (11) being formed with a stator slot (10) extending in the circumferential direction of the stator body (11) and open in the radial direction, the stator body (11) being formed with a first surface (110a) and a second surface (110b), the first surface (110a) being configured as a side wall of the stator slot (10), and the second surface (110b) being configured as a bottom wall of the stator slot (10); A winding assembly (12), wherein the winding assembly (12) is arranged in the stator slot (10); wherein The first surface (110a) is provided with a first avoidance groove (111) at an edge close to the second surface (110b) and / or the second surface (110b) is provided with a first avoidance groove (111) at an edge close to the first surface (110a).

2. The stator assembly according to claim 1, characterized in that: The winding assembly (12) comprises: A retaining frame (121), the retaining frame (121) being arranged in the stator slot (10), and the outer surface of the retaining frame (121) being abutted against both the first surface (110a) and the second surface (110b); A winding (122), wherein the winding (122) is wrapped by the retaining frame (121).

3. The stator assembly according to claim 2, characterized in that: The stator body (11) comprises: A stator core stack (112), wherein the stator core stack (112) is constructed as a plurality of stator core stacks (112) which are stacked in sequence along the axial direction, and the stator slot (10) is formed between two adjacent stator core stacks (112).

4. The stator assembly according to claim 3, characterized in that: The first avoidance groove (111) is arranged on the first surface (110a), a first inclined surface (1111) away from the second surface (110b) is arranged in the first avoidance groove (111), and the first inclined surface (1111) is inclined in a direction close to the second surface (110b) and in a direction concave into the first surface (110a); or The first avoidance groove (111) is arranged on the second surface (110b), and a first inclined surface (1111) away from the first surface (110a) is arranged in the first avoidance groove (111), and the first inclined surface (1111) is inclined in a direction close to the first surface (110a) and in a direction concave into the first surface (110a).

5. The stator assembly according to claim 4, characterized in that A first tool retreat surface (1112) corresponding to the first inclined surface (1111) is arranged in the first avoidance groove (111), and the first tool retreat surface (1112) is constructed as a curved surface.

6. The stator assembly according to claim 3, characterized in that: The stator core block (112) comprises a stator core block body (1121) and a yoke (1122), wherein the yoke (1122) is formed on one side of the stator core block body (1121) in terms of thickness, and the stator slot (10) is formed by the stator core block body (1121) of two adjacent stator core blocks (112) and one of the two adjacent stator core blocks (112). The yoke (1122) of the stator core block (112) defines that the surfaces of the stator core block bodies (1121) of two adjacent stator core blocks (112) facing each other are configured as the first surface (110a), and the yoke (1122) of one of the two adjacent stator core blocks (112) defines that the surface of the stator slot (10) is configured as the second surface (110b); wherein The thickness of the stator core block body (1121) is greater than the thickness of the yoke (1122), and the first avoidance groove (111) is arranged on the first surface (110a); or The thickness of the yoke (1122) is greater than the thickness of the stator core block body (1121), and the first avoidance groove (111) is arranged on the second surface (110b).

7. The stator assembly according to claim 6, characterized in that The radial inner edge of the first surface (110a) is connected to the yoke (1122), and the radial outer edge of the first surface (110a) is provided with a toothed shoe (1123).

8. The stator assembly according to claim 7, characterized in that The inner side of the tooth boot (1123) is formed with a third surface (110c) connected to the first surface (110a); wherein A second avoidance groove (113) is provided at an edge of the first surface (110a) close to the third surface (110c) and / or a second avoidance groove (113) is provided at an edge of the third surface (110c) close to the first surface (110a).

9. The stator assembly according to claim 8, characterized in that The second avoidance groove (113) is arranged on the first surface (110a), a second inclined surface (1131) away from the third surface (110c) is arranged in the second avoidance groove (113), and the second inclined surface (1131) is inclined in a direction close to the third surface (110c) and in a direction concave into the first surface (110a); or The second avoidance groove (113) is arranged on the third surface (110c), and a second inclined surface (1131) away from the first surface (110a) is formed in the second avoidance groove (113), and the second inclined surface (1131) is inclined in a direction close to the third surface (110c) and in a direction concave into the third surface (110c).

10. The stator assembly according to claim 9, characterized in that A second tool retreat surface (1132) corresponding to the second inclined surface (1131) is arranged in the second avoidance groove (113), and the second tool retreat surface (1132) is constructed as a curved surface.

11. The stator assembly according to claim 10, characterized in that The thickness of the stator core block body (1121) is greater than the axial dimension of the tooth shoe (1123) and the second avoidance groove (113) is arranged on the first surface (110a); or the thickness of the tooth shoe (1123) is greater than the thickness of the stator core block body (1121) and the second avoidance groove (113) is arranged on the third surface (110c).

12. The stator assembly according to claim 2, characterized in that The retaining frame (121) is configured as an insulating part.

13. A linear motor, characterized in that: include: Stator core shaft (200); A stator assembly (100) is arranged on the outer periphery of the stator core shaft (200) and is configured as the stator assembly (100) according to any one of claims 1 to 12.

14. The linear motor according to claim 13, characterized in that: A cooling channel for circulating a cooling medium is formed in the stator core shaft (200).

15. A shock absorber, characterized in that: Including the linear motor described in claim 13 or 14.

16. A vehicle, characterized in that: Includes the vibration damper as claimed in claim 15.

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