Stator insulation frame, stator and motor

Abstract

The present invention belongs to the field of stator technology, and in particular relates to an insulating frame of a stator, a stator, and a motor. The insulating frame includes a plurality of frame units, and the frame unit includes a yoke and a tooth portion. A wire support portion is formed on the side of the yoke close to the tooth portion, and a wire blocking portion is formed on the side away from the tooth portion. Among two adjacent frame units, one frame unit forms a first wire support structure at both ends of the yoke in the length direction, and the other frame unit forms a second wire support structure at both ends of the yoke in the length direction. One end of the first wire support structure and the second wire support structure are respectively fixed to the yoke, and the other end extends to the adjacent frame unit. During the process of the stator being circled, the first wire support structure and the second wire support structure respectively rotate around the axis of the stator rotation axis between the two adjacent frame units to support the bridge wire in the wire slot. The insulating frame of the present invention can effectively solve the problem of loose bridge wires after the stator is circled.

Description

Technical Field

[0001] The present invention belongs to the technical field of stators, and in particular relates to an insulating frame of a stator, a stator and a motor. Background Art

[0002] In a motor, the stator is the component that generates a rotating magnetic field. When the stator windings are energized, they generate a magnetic field. The stator's silicon steel sheets act as magnetic conductors, providing a path for this magnetic field. The windings are typically wound around the stator, separated by insulating material. Without this insulation, the electrical safety distance between the two is insufficient. If the windings and the stator core short-circuit, the entire motor becomes a live element, posing a significant safety risk.

[0003] In a chain-type stator, the insulation is shaped according to the winding method, known as the insulation bobbin. The stator is typically wound automatically in a straight strip configuration before being rounded. Currently, two bobbin structures exist. One utilizes side-to-side wiring, where wire routing slots are created on the outside of the bobbin yoke. This allows for clamping of the winding tooling, meaning the stator core extends beyond the bobbin. The depth of the wiring slots must be greater than the diameter of the bridge wires to prevent them from being scratched or falling onto the core. This approach places certain requirements on the width of the stator core yoke. For a narrow yoke, the wire routing slot depth must be maintained while preserving clamping space. The wiring path is generally below the center of rotation, meaning the bridge wires travel a shorter path after the stator is rounded than when wound in a straight strip configuration. This can lead to loose wires after the stator is rounded. This winding method is often used for designs with wider yokes, but narrower yokes also present the same problem of loose wires. There is another wiring method that uses top wiring. In this method, the stator core yoke can eliminate the core clamping position, but the path of the bridge wire after it is rounded must be shorter than the path of the bridge wire in the straight state, and the loose wire problem is serious. Some methods currently used by manufacturers to prevent loose wires include: wrapping a circle of tape around the bridge wire after the stator is rounded; some apply glue between the bridge wire and the frame after rounding; some use a machine to push the bridge wire to the gap between the frames after rounding, etc. However, these operating methods usually increase the process, increase the process and material costs. Using the frame's own structure to solve this problem is the best option.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an insulating frame, a stator and a motor that can effectively solve the problem of loose bridge wires after the stator is rounded.

[0006] To solve the above technical problems, the first object of the present invention is to provide an insulating frame for a stator, characterized in that the insulating frame includes a plurality of frame units spliced ​​together, the frame unit includes a yoke and a tooth portion connected to the yoke, a wire supporting portion is formed on a side of the yoke close to the tooth portion, and a wire blocking portion is formed on a side away from the tooth portion, and a wire passing groove is formed between the wire supporting portion and the wire blocking portion;

[0007] The support portion includes a first support structure and a second support structure cooperating with the first support structure. Among two adjacent skeleton units, one of the skeleton units forms the first support structure at both ends of the yoke in the length direction, and the other skeleton unit forms the second support structure at both ends of the yoke in the length direction; one end of the first support structure and the second support structure are respectively fixed to the yoke, and the other end extend to the adjacent skeleton unit;

[0008] The two adjacent skeleton units are connected by the first wire supporting structure and the second wire supporting structure. When the insulating skeleton is assembled on the stator, the first wire supporting structure and the second wire supporting structure respectively rotate around the axis of the stator rotation axis between the two adjacent skeleton units during the process of the stator forming a circle to support the bridge wire in the wire slot.

[0009] A second object of the present invention is to provide an insulating frame for a stator, the insulating frame comprising a plurality of integrally spliced ​​frame units, the frame units comprising a yoke and a tooth portion connected to the yoke, a wire-supporting portion being formed on a side of the yoke close to the tooth portion and a wire-blocking portion being formed on a side away from the tooth portion, a wire-passing slot being formed between the wire-supporting portion and the wire-blocking portion;

[0010] The support portion includes a first support structure and a second support structure cooperating with the first support structure. The skeleton unit forms the first support structure and the second support structure at both ends of the yoke in the length direction, respectively. One end of the first support structure and the second support structure are respectively fixed to the yoke, and the other end extends to the adjacent skeleton unit.

[0011] The two adjacent skeleton units are connected by the first wire supporting structure and the second wire supporting structure. When the insulating skeleton is assembled on the stator, the first wire supporting structure and the second wire supporting structure respectively rotate around the axis of the stator rotation axis between the two adjacent skeleton units during the process of the stator forming a circle to support the bridge wire in the wire slot.

[0012] On the basis of the above two insulating frames, further optionally, when the insulating frame is assembled on the stator, the side of the bridge wire supported by the first supporting structure is the first supporting side, and the side of the bridge wire supported by the second supporting structure is the second supporting side;

[0013] When the stator is in a straight state, the angle between the shortest line between the first supporting edge and the axis of the stator rotating shaft and the horizontal line in the straight state is α, and the angle between the shortest line between the second supporting edge and the axis of the stator rotating shaft and the horizontal line in the straight state is β; satisfying:

[0014] α<360° / n, β<360° / n, wherein n is the number of the skeleton units.

[0015] Further optionally, an intermediate baffle is formed in the middle of the yoke portion on one side close to the tooth portion;

[0016] When, among two adjacent skeleton units, one of the skeleton units forms the first support wire structures at both ends of the yoke in the length direction, and the other of the skeleton units forms the second support wire structures at both ends of the yoke in the length direction, in one of the skeleton units, the two first support wire structures are located on both sides of the middle baffle, and in the other of the skeleton units, the two second support wire structures are located on both sides of the middle baffle;

[0017] When the skeleton unit forms the first support structure and the second support structure at both ends of the yoke in the length direction, the first support structure and the second support structure are formed on both sides of the middle baffle.

[0018] Further optionally, the first support wire structure includes a first extension section and a second extension section, one end of the first extension section is fixed to the yoke, and the other end extends away from the yoke to the adjacent skeleton unit; one end of the second extension section is connected to a side of the extension end of the first extension section away from the tooth portion, and the other end extends away from the yoke;

[0019] The first supporting edge is located on the second extension segment, and the extension length of the first extension segment satisfies the condition α<360° / n.

[0020] Further optionally, the second support wire structure includes a third extension segment, a fourth extension segment, and a fifth extension segment; one end of the third extension segment is fixed to the yoke portion, and the other end extends in a direction away from the yoke portion; one end of the fourth extension segment is connected to the extension end of the third extension segment, and the other end extends to the adjacent skeleton unit in a direction away from the yoke portion; one end of the fifth extension segment is connected to a side of the extension end of the fourth extension segment away from the tooth portion, and the other end extends in a direction close to the yoke portion;

[0021] The second supporting edge is located on the fifth extension segment, and the extension length of the fourth extension segment satisfies β<360° / n.

[0022] Further optionally, a first mounting position is formed between a side of the first extension section facing away from the tooth portion and the second extension section, a second mounting position is formed between the third extension section and the fourth extension section, and a third mounting position is formed between a side of the fourth extension section facing away from the tooth portion and the fifth extension section.

[0023] When the first support structure is connected to the second support structure, the first support structure is located below the second support structure, the first extension section is located at the second installation position, the second extension section is located at the third installation position, and the fifth extension section is located at the first installation position.

[0024] Further optionally, a rounded corner avoidance portion is formed on the side of the extension end of the first extension section close to the tooth portion; an arc avoidance portion is formed on the portion of the third extension section located at the second installation position, and when the first extension section is located at the second installation position, the rounded corner avoidance portion is fitted with the arc avoidance portion, so that the rounded corner avoidance portion slides relative to the arc avoidance portion during the rounding process of the stator.

[0025] Further optionally, in the width direction of the yoke, the depth of the first mounting position is the same as the thickness of the fifth extension segment, the depth of the third mounting position is the same as the thickness of the second extension segment, and when the stator is in a straight bar state, the side of the second extension segment facing away from the tooth portion and the side of the fifth extension segment facing away from the tooth portion are in the same plane.

[0026] The present invention also provides a stator, which includes the insulating frame described in any one of the above items.

[0027] The present invention also provides a motor, which includes the above-mentioned stator.

[0028] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0029] The insulating frame of the present invention adopts top wiring, which can make the stator yoke narrower while preventing the problem of loose bridge wires after the stator is rounded; the insulating frame's own structure supports the bridge wires, ensuring that the bridge wires can be tightened after the stator is rounded, without adding new processes, greatly reducing process costs and production efficiency; at the same time, the insulating frame of the present invention ensures that the bridge wires are always in the wiring groove before and after the stator is rounded, and can protect the enameled wires during turnover and clamping to avoid scratches and quality risks.

[0030] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0032] Figures 1-4 : A skeleton unit of an embodiment of the present invention.

[0033] Figure 5 : It is a schematic diagram of the assembly of the insulating frame of an embodiment of the present invention when it is in the straight bar state of the stator.

[0034] Figure 6 : It is a schematic diagram of the assembly of the insulating frame of an embodiment of the present invention when the stator is in a circular state.

[0035] Figure 7 : A schematic diagram of the eccentric dimensions of the insulating frame according to an embodiment of the present invention;

[0036] Figure 8 : This is a schematic diagram of the bridge wire when the stator is in a circle when the angle between the shortest connecting line between the supporting edge of the insulating frame of the embodiment of the present invention and the axis of the stator rotating axis and the horizontal line where the straight stator is located is 360 / n.

[0037] Figure 9 : This is a schematic diagram of lifting the bridge wire when the stator is in a circle when the angle between the support edge of the insulating frame of an embodiment of the present invention and the shortest connecting line between the axis of the stator rotating shaft and the horizontal line where the straight stator is located is less than 360 / n.

[0038] Among them: 1-yoke; 2-tooth; 3-wire slot; 22-winding slot; 21-inner baffle; 13-wire blocking part; 11-first wire supporting structure; 12-second wire supporting structure; 111-first extension section; 112-second extension section; 121-third extension section; 122-fourth extension section; 123-fifth extension section; 1111-rounded corner avoidance part; 1211-arc avoidance part; 4-stator; 41-stator rotating axis; 113-first mounting part; 124-second mounting part; 125-third mounting part; 14-middle baffle.

[0039] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] In the description of the present invention, it should be noted that the terms "inside" and "outside" etc. indicating orientations or positional relationships are 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, 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.

[0041] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "in contact," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0042] In order to solve the problem of loose bridge wires after the straight stator is rounded, this embodiment proposes an insulating frame for the stator, such as Figures 1-6 As shown, the insulating skeleton includes a plurality of skeleton units spliced ​​together, and the skeleton unit includes a yoke 1 and a tooth portion 2 connected to the yoke 1. A wire support portion is formed on the side of the yoke 1 close to the tooth portion 2, and a wire blocking portion 13 is formed on the side away from the tooth portion 2. When the insulating skeleton is assembled on the stator 4, the wiring path of the automated winding equipment across the teeth is a straight line when the stator 4 is in a straight state, and a wire groove 3 is formed between the wire support portion and the wire blocking portion 13. An inner baffle 21 is provided at the end of the tooth portion 2 away from the yoke 1, and a winding groove 22 is formed between the wire support portion and the inner baffle 21. The position of the wire blocking column is determined in advance due to the size limitation of the motor, and the wiring groove between the wire blocking portion 13 and the wire support portion must leave space for the automated winding equipment to move. The wire support portion includes a first wire support structure 11 and a second wire support structure 12 that cooperates with the first wire support structure 11. Regarding the arrangement of the first wire support structure 11 and the second wire support structure 12, the following two implementation methods can be adopted:

[0043] Implementation method 1: Figures 1-4 As shown, the insulating frame includes two different frame units, each of which has multiple units. The two different frame units are alternately connected, with a first bracing structure 11 provided on one frame unit and a second bracing structure 12 provided on the adjacent frame unit. That is, of the two adjacent frame units, one frame unit has a first bracing structure 11 formed at both ends of the yoke 1 in the longitudinal direction, and the other frame unit has a second bracing structure 12 formed at both ends of the yoke 1 in the longitudinal direction. One end of the first bracing structure 11 and the second bracing structure 12 are each fixed to the yoke 1, and the other end extends to the adjacent frame unit.

[0044] The wire blocking portion 13 of this embodiment is a baffle or a plurality of wire blocking posts formed by extending from one end of the yoke 1 away from the tooth portion 2 in a direction away from the yoke 1 .

[0045] Furthermore, an intermediate baffle 14 is formed in the middle of the yoke 1 near the tooth portion 2. In one skeleton unit, the two first wire-supporting structures 11 are located on either side of the intermediate baffle 14, and in the other skeleton unit, the two second wire-supporting structures 12 are located on either side of the intermediate baffle 14. The intermediate baffle 14 prevents the winding from entering the wire slot 3 and prevents the bridge wire from entering the winding slot 22.

[0046] In the second embodiment, the insulating skeleton is composed of only one skeleton unit, and the first support structure 11 and the second support structure 12 are located on the same skeleton unit, that is, the skeleton unit forms the first support structure 11 and the second support structure 12 at both ends of the yoke 1 in the length direction, respectively. One end of the first support structure 11 and the second support structure 12 are respectively fixed to the yoke 1, and the other end extends to the adjacent skeleton unit.

[0047] Multiple skeleton units are sequentially connected, with adjacent units connected by a first bracing structure 11 and a second bracing structure 12. When the insulating skeleton is assembled on the stator 4, the first and second bracing structures 11, 12 rotate around the axis of the stator rotation axis 41 between adjacent skeleton units as the stator 4 forms a circle, supporting the bridge wires within the wire slots 3. The stator 4 initially has a straight chain structure. Before winding, the insulating skeleton is placed over the straight core. The automated winding equipment then completes the winding in the straight state. Once winding is complete, the chain stator 4 is rounded, with the teeth rotating around the axis of the stator rotation axis 41. In the straight state, the first support structure 11, the second support structure 12 and the wire blocking portion 13 are in parallel positions. After forming a circle, the support structure will rotate in the direction away from the tooth portion 2. As the angle between the teeth of the stator 4 changes, a certain angle is formed between the first support structure 11 and the second support structure 12, which push the bridge wire they are in contact with in the direction away from the tooth portion 2, and then support the bridge wire. The straight-line distance of the axis where the stator rotating shaft 41 connecting the two ends of a tooth is the distance that the bridge wire spans across a tooth in the straight state of the stator 4; when the first support structure 11 and the second support structure 12 push up the bridge wire, the path of the bridge wire becomes an oblique line, which is longer than the path of the bridge wire in the straight state. At the same time, the wire blocking portion 13 blocks the bridge wire. Before and after the stator 4 forms a circle, the bridge wire is always in the wire groove, which can protect the enameled wire during the turnover and clamping process to avoid scratches and quality risks.

[0048] The wire blocking portion 13 of this embodiment is a baffle or a plurality of wire blocking posts formed by extending from one end of the yoke 1 away from the tooth portion 2 in a direction away from the yoke 1 .

[0049] Further optionally, an intermediate baffle 14 is formed in the middle portion of the yoke 1 near the tooth portion 2. The first wire-supporting structure 11 and the second wire-supporting structure 12 are formed on either side of the intermediate baffle 14. The area between the intermediate baffle 14 and the inner baffle 21 is the winding slot 22, and the area between the intermediate baffle 14, the wire-supporting portion, and the wire-blocking portion 13 is the wire-passing slot 3. The provision of the intermediate baffle 14 prevents the winding from entering the wire-passing slot 3 and prevents the bridge wire from entering the winding slot 22.

[0050] On the basis of the above two embodiments, a further solution is that when the insulating frame is assembled on the stator 4, the side of the first supporting structure 11 close to the wire slot 3 and the side of the second supporting structure 12 close to the wire slot 3 support the bridge wire located in the wire slot 3 when the stator 4 is rounded. The side where the first supporting structure 11 supports the bridge wire is the first supporting side. The first supporting side is the side where the force point is located when the first supporting structure 11 supports the bridge wire. The side where the second supporting structure 12 supports the bridge wire is the first supporting side. The side is the second supporting side, and the second supporting side is the side where the force point is located when the second supporting structure 12 supports the bridge line; when the stator 4 is in a straight state, the angle between the shortest line between the first supporting side and the axis where the stator rotating shaft 41 is located and the horizontal line where the stator 4 is in a straight state is α, and the angle between the shortest line between the second supporting side and the axis where the stator rotating shaft 41 is located and the horizontal line where the stator 4 is in a straight state is β; satisfying: α<360° / n, β<360° / n, where n is the number of skeleton units.

[0051] The lateral dimensions of the wire support structure of a conventional insulating skeleton do not extend beyond the axis of the stator rotating shaft 41. If this does, interference will occur during rotation. In this embodiment, the first wire support structure 11 and the second wire support structure 12 are eccentric. The wire support structure on each skeleton unit will extend to the adjacent skeleton unit in the straight state. To avoid collision between adjacent wire support structures of two teeth during rotation and collision between wire support structures of adjacent skeleton units during the rounding process of the stator 4, a high and low level wire support structure is designed. Specifically,

[0052] like Figure 1 and Figure 2 As shown, the first support wire structure 11 includes a first extension section 111 and a second extension section 112. One end of the first extension section 111 is fixed to the yoke 1, and the other end extends away from the yoke 1 to the adjacent skeleton unit; one end of the second extension section 112 is connected to the side of the extension end of the first extension section 111 away from the tooth section 2, and the other end extends away from the installation position of the stator 4. A first installation position is formed between the side of the first extension section 111 away from the tooth section 2 and the second extension section 112, and the first support edge is located on the second extension section 112. Figure 3 and Figure 4As shown, the second support wire structure 12 includes a third extension section 121, a fourth extension section 122, and a fifth extension section 123; one end of the third extension section 121 is fixed to the yoke 1, and the other end extends in a direction away from the installation position of the stator 4; one end of the fourth extension section 122 is connected to the extended end of the third extension section 121, and the other end extends away from the yoke 1 to an adjacent skeleton unit; one end of the fifth extension section 123 is connected to the side of the extended end of the fourth extension section 122 facing away from the tooth part 2, and the other end extends in a direction close to the installation position of the stator 4. A second installation position is formed between the third extension section 121 and the fourth extension section 122; a third installation position is formed between the side of the fourth extension section 122 facing away from the tooth part 2 and the fifth extension section 123; the second support edge is located on the fifth extension section 123.

[0053] The path lengths of the first support wire structure 11 and the second support wire structure 12 after jacking up the cross-over wire are determined by the eccentric dimension S of the first support wire structure 11 and the second support wire structure 12, as Figure 7 shown, the eccentric dimension S of the support wire structure can be determined by the positions of the support edges (the first support edge and the second support edge), as Figure 7-Figure 9 shown by the support edge at point f in Figure 8 If the stator 4 is formed by n teeth into a circle, and each tooth rotates 360° / n around the axis where the stator rotation axis 41 is located, then the position of the support edge in the straight bar state after forming a circle is equivalent to walking 360° / n on a circle with the axis where the stator rotation axis 41 is located as the center and the shortest distance from f to the axis where the stator rotation axis 41 is located as the radius, as Figure 9 shown, when the angle α (β) between point f and the axis where the stator rotation axis 41 is located in the straight bar state is 360° / n, after forming a circle, point f falls on the straight bar path. Segment a and segment d form a right triangle, segment b and segment e form a triangle, a < d, b > e, and since the angle between a and d is greater than the angle between b and e, so d + e > a + b. Therefore, we need to make the α angle less than 360° / n so that point f is above the straight bar path after forming a circle. In this way, the path passed by the winding and the straight bar path form four right triangles. The path passed by the winding occupies the hypotenuse of three right triangles, and only one is the right side of a right triangle. So when the α (β) angle is less than 360° / n, as Figure 9 shown, after the support edge jacks up the cross-over wire, the distance that the cross-over wire spans one tooth is longer than the distance that the cross-over wire spans one tooth in the straight bar state. In this way, the length in the straight bar state is less than the length of the cross-over wire after jacking up, achieving the purpose of tightening the wire.

[0054] As Figure 7As shown, since the positions of the first and second supporting edges along the width of the yoke 1 are limited by the width h of the wire slot 3, the length of the bridge wire supported by the first and second supporting edges after the rounding is adjusted by adjusting their positions along the length of the yoke 1. Specifically, the extension length of the first extension segment 111 satisfies α < 360° / n. The extension length of the fourth extension segment 122 satisfies the angle β < 360° / n.

[0055] like Figure 5 and Figure 6 As shown, the stacking of the first support structure 11 and the second support structure 12 must be in order. The first support structure 11 must be placed on the stator 4 first, and then the skeleton unit with the second support structure 12 is inserted into the adjacent teeth. When the first support structure 11 and the second support structure 12 are connected with each other, the first support structure 11 is located below the second support structure 12, and the first extension section 111 is located in the second installation position, the second extension section 112 is located in the third installation position, and the fifth extension section 123 is located in the first installation position. When the stator 4 forms a circle, the two support structures rotate around the axis where the stator rotation axis 41 is located.

[0056] Further optionally, as Figures 1-4 As shown, a rounded corner avoidance portion 1111 is formed on one side of the extending end of the first extension section 111 close to the tooth portion 2; an arc avoidance portion 1211 is formed on the portion of the third extension section 121 located at the second installation position. When the first extension section 111 is located at the second installation position, the rounded corner avoidance portion 1111 is fitted with the arc avoidance portion 1211, so that the rounded corner avoidance portion 1111 slides relative to the arc avoidance portion 1211 during the rounding process of the stator 4, thereby avoiding interference between the first support wire structure 11 and the second support wire structure 12 during rotation.

[0057] Further optionally, as Figure 5 As shown, in the width direction of the yoke 1, the depth of the first mounting position is the same as the thickness of the fifth extension section 123, and the depth of the third mounting position is the same as the thickness of the second extension section 112. When the stator 4 is in a straight state, the side of the second extension section 112 facing away from the tooth portion 2 and the side of the fifth extension section 123 facing away from the tooth portion 2 are in the same plane. When the stator 4 is in a straight state, the smoothness of the routing of the bridge wire is ensured, and when the stator 4 is in a circular state, the heights of the bridge wire lifted by the first support structure and the second support structure are ensured to be equal, thereby ensuring the uniformity of the force on the bridge wire and improving the reliability of the stator 4.

[0058] This embodiment further provides a stator, which includes the above-mentioned insulating frame. An upper insulating frame and a lower insulating frame are respectively provided at both ends of the stator of this embodiment, and the insulating frame of this embodiment is the lower insulating frame.

[0059] This embodiment also provides a motor, which includes the above-mentioned stator.

[0060] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. An insulating frame of a stator, characterized in that: The insulating frame includes a plurality of frame units spliced ​​together, the frame unit including a yoke and a tooth portion connected to the yoke, a wire supporting portion is formed on a side of the yoke close to the tooth portion, and a wire blocking portion is formed on a side away from the tooth portion, and a wire groove is formed between the wire supporting portion and the wire blocking portion; The support portion includes a first support structure and a second support structure cooperating with the first support structure. Among two adjacent skeleton units, one of the skeleton units forms the first support structure at both ends of the yoke in the length direction, and the other skeleton unit forms the second support structure at both ends of the yoke in the length direction; one end of the first support structure and the second support structure are respectively fixed to the yoke, and the other end extend to the adjacent skeleton unit; The two adjacent skeleton units are connected by the first wire supporting structure and the second wire supporting structure. When the insulating skeleton is assembled on the stator, the first wire supporting structure and the second wire supporting structure respectively rotate around the axis of the stator rotation axis between the two adjacent skeleton units during the process of the stator forming a circle to support the bridge wire in the wire slot.

2. An insulating frame of a stator, characterized in that: The insulating frame includes a plurality of frame units spliced ​​together, the frame unit including a yoke and a tooth portion connected to the yoke, a wire supporting portion is formed on a side of the yoke close to the tooth portion, and a wire blocking portion is formed on a side away from the tooth portion, and a wire groove is formed between the wire supporting portion and the wire blocking portion; The support portion includes a first support structure and a second support structure cooperating with the first support structure. The skeleton unit forms the first support structure and the second support structure at both ends of the yoke in the length direction, respectively. One end of the first support structure and the second support structure are respectively fixed to the yoke, and the other end extends to the adjacent skeleton unit. The two adjacent skeleton units are connected by the first wire supporting structure and the second wire supporting structure. When the insulating skeleton is assembled on the stator, the first wire supporting structure and the second wire supporting structure respectively rotate around the axis of the stator rotation axis between the two adjacent skeleton units during the process of the stator forming a circle to support the bridge wire in the wire slot.

3. The insulating frame of a stator according to claim 1 or 2, characterized in that: When the insulating frame is assembled on the stator, the side of the bridge wire supported by the first supporting structure is the first supporting side, and the side of the bridge wire supported by the second supporting structure is the second supporting side; When the stator is in a straight state, the angle between the shortest line between the first supporting edge and the axis of the stator rotating shaft and the horizontal line where the stator is in the straight state is α, and the angle between the shortest line between the second supporting edge and the axis of the stator rotating shaft and the horizontal line where the stator is in the straight state is β; satisfy: α<360° / n, β<360° / n, wherein n is the number of the skeleton units.

4. The insulating frame of a stator according to claim 3, characterized in that: An intermediate baffle is formed in the middle of the yoke portion on one side close to the tooth portion; When, among two adjacent skeleton units, one of the skeleton units forms the first support wire structures at both ends of the yoke in the length direction, and the other of the skeleton units forms the second support wire structures at both ends of the yoke in the length direction, in one of the skeleton units, the two first support wire structures are located on both sides of the middle baffle, and in the other of the skeleton units, the two second support wire structures are located on both sides of the middle baffle; When the skeleton unit forms the first support structure and the second support structure at both ends of the yoke in the length direction, the first support structure and the second support structure are formed on both sides of the middle baffle.

5. The insulating frame of a stator according to claim 4, characterized in that: The first support structure includes a first extension section and a second extension section, one end of the first extension section is fixed to the yoke, and the other end extends away from the yoke to the adjacent skeleton unit; One end of the second extension section is connected to a side of the extension end of the first extension section away from the tooth portion, and the other end extends in a direction away from the yoke portion; The first supporting edge is located on the second extension segment, and the extension length of the first extension segment satisfies α<360° / n.

6. The insulating frame of a stator according to claim 5, characterized in that: The second support structure includes a third extension segment, a fourth extension segment, and a fifth extension segment; one end of the third extension segment is fixed to the yoke, and the other end extends away from the yoke; one end of the fourth extension segment is connected to the extension end of the third extension segment, and the other end extends away from the yoke to the adjacent skeleton unit; One end of the fifth extension segment is connected to a side of the extension end of the fourth extension segment away from the tooth portion, and the other end extends toward the yoke portion; The second supporting edge is located on the fifth extension segment, and the extension length of the fourth extension segment satisfies β<360° / n.

7. The insulating frame of a stator according to claim 6, characterized in that: A first mounting position is formed between the side of the first extension section facing away from the tooth portion and the second extension section, a second mounting position is formed between the third extension section and the fourth extension section, and a third mounting position is formed between the side of the fourth extension section facing away from the tooth portion and the fifth extension section. When the first support structure is connected to the second support structure, the first support structure is located below the second support structure, the first extension section is located at the second installation position, the second extension section is located at the third installation position, and the fifth extension section is located at the first installation position.

8. The insulating frame of a stator according to claim 7, characterized in that: A rounded corner avoidance portion is formed on the side of the extending end of the first extension section close to the tooth portion; an arc avoidance portion is formed on the portion of the third extension section located at the second installation position. When the first extension section is located at the second installation position, the rounded corner avoidance portion is fitted with the arc avoidance portion, so that the rounded corner avoidance portion slides relative to the arc avoidance portion during the rounding process of the stator.

9. The insulating frame of a stator according to claim 8, characterized in that: In the width direction of the yoke, the depth of the first mounting position is the same as the thickness of the fifth extension segment, the depth of the third mounting position is the same as the thickness of the second extension segment, and when the stator is in a straight state, the side of the second extension segment facing away from the tooth portion and the side of the fifth extension segment facing away from the tooth portion are in the same plane.

10. A stator, characterized in that: It comprises the insulating skeleton described in any one of claims 1 to 8.

11. A motor comprising the stator according to claim 10.

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