WO2016173393A1

WO2016173393A1 - Insulating frame, stator having the same, and stator assembly method

Info

Publication number: WO2016173393A1
Application number: PCT/CN2016/078772
Authority: WO
Inventors: 任丽君; 李庆; 夏宝; 张之元; 王周叶; 张小波
Original assignee: 珠海格力节能环保制冷技术研究中心有限公司
Priority date: 2015-04-27
Filing date: 2016-04-08
Publication date: 2016-11-03
Also published as: CN106160275B; CN106160275A

Abstract

An insulating frame comprises a first insulating frame (200) and a second insulating frame (300) installed at two ends of a motor stator core. The first insulating frame (200) and corresponding parts of each of stator tooth (110) of the stator core (100) are provided with at least two line inlets/outlets (210). An outer side of the first insulating frame (200) is also provided with a through line slot (220) provided in layers. The through line slot (220) passes through line inlet/outlet. By providing through line slot (220) in layers, the present invention can provide a non-crossing winding path for a phase line, thus avoiding mutually crossed phase lines, thus effectively preventing a short circuit of the phase line. The present invention also provides a stator having the insulating frame and a stator assembly method.

Description

Insulation skeleton, stator and stator assembly method therewith

Related application

The present invention claims the priority of the Chinese Patent Application No. 201510205265.X, entitled "Insulating Skeleton, Stator and Stator Assembly Method Therewith", which is hereby incorporated by reference in its entirety. reference.

Technical field

The present invention relates to the field of electrical machines, and more particularly to an insulating skeleton, a stator and a stator assembly method therewith.

Background technique

Generally, the motor body includes components such as a stator, a rotor, and a casing. The stator includes a stator core, an insulating skeleton, a winding, and the like. The existing windings are distributed on different stator teeth of the stator, and there are cases where the windings of the different phase lines cross the line. When the winding patent leather is scratched or aged, it will lead to local bare copper in the phase line. Therefore, the winding may be short-circuited.

Summary of the invention

Based on this, it is necessary to provide an insulating skeleton for solving the problem that the phase lines cross each other when winding the phase line.

An insulating skeleton comprising a first insulating skeleton and a second insulating skeleton for mounting at both ends of a stator core of a motor;

The portion of the first insulating frame corresponding to each stator tooth of the stator core is provided with at least two inlet/outlet ports, and the outer side of the first insulating frame is further provided with a layered over-line groove. The wire trough passes through the inlet/outlet port.

In one embodiment, the inlet/outlet port is a channel structure, and the inlet/outlet ports include three types, namely a first inlet/outlet port, a second inlet/outlet port, and a third inlet/outlet line. mouth;

The first inlet/outlet port has a first depth in an axial direction of the stator core, and the second inlet/outlet port has a second depth in an axial direction of the stator core, the third The inlet/outlet port has a third depth in the axial direction of the stator core;

The inlet/outlet ports corresponding to each of the stator teeth of the stator core have the same depth in the axial direction of the stator.

In one of the embodiments, the first depth, the second depth, and the third depth are equal.

In one embodiment, the first depth, the second depth, and the third depth are not equal;

The wire passing slot includes a first wire passing groove, a second wire passing groove and a third wire passing groove;

The first wire passing slot passes through the bottom of the first inlet/outlet port;

The second wire passing slot passes through the bottom of the second inlet/outlet port;

The third wire passing slot passes through the bottom of the third inlet/outlet port.

In one embodiment, when the first insulating skeleton is in a straight strip shape, the wire passing groove has a linear structure.

In one embodiment, a plurality of first grooves are formed on opposite sides of the side of the second insulating bobbin that is in contact with the stator core, and the first recess is adapted to mount a wiring pin.

In one embodiment, on the opposite side of the side of the second insulating bobbin that is in contact with the stator core, a boss is disposed on each of the winding portions of the second insulating bobbin away from the center of the stator;

And a baffle is disposed on both sides of the boss along the circumferential direction of the stator core, and a wire groove is formed between the baffle and the boss.

The invention also proposes a stator comprising a stator core and the above-described insulating skeleton.

In one embodiment, the stator further includes a shield plate detachably mounted on an opposite side of a side of the second insulating bobbin in contact with the stator core;

a side of the protective plate contacting the second insulating frame is further provided with a second groove corresponding to the position of the first groove;

A fixing post is disposed on an opposite side of the side of the shield that is in contact with the second insulating bobbin, and the fixing post is suitable for fixing a control board of the motor.

In one of the embodiments, the notch of the second groove is provided with a chamfer.

In one embodiment, the shield includes at least two portions abutting each other in a circumferential direction, and an outer side of each portion of the shield is provided with a side wall, and a middle portion of the side wall is axially The height above is less than the height of the ends of the side walls in the axial direction of the stator.

In one embodiment, the opposite side of the side of the shield that is in contact with the second insulating bobbin is provided with a slot for increasing the bonding strength of the stator molding compound.

The invention also provides a stator assembly method for assembling the above stator, comprising the following steps:

Expanding the stator core, the first insulating skeleton and the second insulating skeleton into a straight strip shape;

Mounting the first insulating bobbin and the second insulating bobbin at two ends of the stator core;

Inserting a wiring pin into the first recess in the first recess on the second insulating bobbin;

Winding the phase wire on the assembled stator core, the first insulating skeleton and the second insulating skeleton;

Inserting a wiring pin into a second depth in the first recess on the second insulating bobbin; the second depth is greater than the first depth;

The stator core, the first insulating bobbin and the second insulating bobbin of the wound phase coil group are rounded, and the shield is mounted on the second insulating bobbin.

In one embodiment, the wiring pin includes a first wiring pin, a second wiring pin, a third wiring pin, and a common wiring pin;

The winding process of winding the phase wire on the assembled stator core, the first insulating skeleton and the second insulating skeleton is:

Fixing the phase line on the first terminal pin, and winding the phase line on the preset first and second inlet/outlet ports through the first inlet/outlet port and the first wireway Corresponding winding portions and fixing the phase wires to the common wiring pins;

Passing the phase line through the corresponding second inlet/outlet port and the second wireway, winding the phase wire on a predetermined winding portion corresponding to the second inlet/outlet port, and The phase line is fixed to the second wiring pin;

Fixing the phase line on the third terminal pin, and winding the phase line on the preset first and second inlet/outlet ports through the third inlet/outlet port and the third wireway Corresponding to the winding portion, and fixing the phase wire to the common wiring pin.

The above-mentioned insulating skeleton, through the layered over-line grooves, is provided with a winding line which does not cross each other for the phase line, so that the phase lines do not cross each other, so that the short circuit between the phase lines can be effectively avoided. Happening. The above stator has the advantage of the above-described insulating skeleton. The above stator is assembled by the above stator assembly method, and the assembly speed is fast, which is convenient for efficient automatic production.

DRAWINGS

1 is a schematic structural view showing a first insulating frame in a straight strip shape in an embodiment of an insulating skeleton according to the present invention;

2 is a schematic structural view showing a first insulating skeleton in a straight strip shape in another embodiment of the insulating skeleton of the present invention;

3 is a schematic perspective view showing a first insulating skeleton in an embodiment of an insulating skeleton of the present invention;

Figure 4 is a plan view of Figure 3;

Figure 5 is a perspective view showing the structure of one of the second insulating skeletons in one embodiment of the insulating skeleton of the present invention;

Figure 6 is a plan view of Figure 5;

7 is a schematic diagram of a phase line routing scheme according to an embodiment of a stator of the present invention;

Figure 8 is a perspective view showing the first perspective of the shield plate in one embodiment of the stator of the present invention;

9 is a perspective view showing a second perspective view of a shield plate according to an embodiment of the stator of the present invention;

Fig. 10 is a schematic view showing the stator winding assembly of one embodiment of the stator of the present invention and rounded.

detailed description

In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the specific embodiments of the insulating skeleton of the present invention, the stator and the stator assembling method thereof will be described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to FIGS. 1 through 6, in one embodiment, the insulating bobbin of the present invention includes a first insulating bobbin 200 and a second insulating bobbin 300 for mounting at both ends of the stator core 100 of the motor. The portions of the first insulating bobbin 200 corresponding to each of the stator teeth 110 of the stator core 100 are provided with at least two inlet/outlet ports 210. The outer side of the first insulating frame 100 is further provided with a layered through-line groove 220. The wire trough 220 passes through the inlet/outlet port 210.

The above-mentioned insulating skeleton, through the layered through-line grooves 220, is provided with a winding line which does not cross each other for the phase line, so that the phase lines do not cross each other, so that the short circuit between the phase lines can be effectively avoided. Case.

Referring to Figures 1 and 2, in one embodiment, the inlet/outlet port 210 is a channel structure. The inlet/outlet port 210 includes a first inlet/outlet port 211, a second inlet/outlet port 212, and a third inlet/outlet port 213. The first inlet/outlet port 211 has a first depth in the axial direction of the stator core 100. The second inlet/outlet port 212 has a second depth in the axial direction of the stator core 100. The third inlet/outlet port 213 has a third depth in the axial direction of the stator core 100. And the inlet/outlet port 210 corresponding to each stator tooth 110 of the stator core 100 has the same depth in the axial direction of the stator core 100.

It can be understood that the first depth, the second depth and the third depth may be equal. As shown in FIG. 2, the first depth, the second depth, and the third depth are equal. Each of the layered wire troughs 220 of the layered arrangement passes through the first inlet/outlet port 211, the second inlet/outlet port 212, and the third inlet/outlet port 213.

Of course, the first depth, the second depth, and the third depth may also be unequal. As shown in FIG. 1 , the wire trunking groove 220 includes a first wire passing groove 221 , a second wire passing groove 222 , and a third wire passing groove 223 . The first wire passing groove 221 passes through the bottom of the first inlet/outlet port 211. The second wire trough 222 enters the bottom of the second inlet port 212. The third crossing groove 223 passes through the bottom of the third inlet port 213. In this way, when winding the stator, it is advantageous to locate the over-line groove 220 corresponding to the phase line, and it is possible to effectively prevent the case of the line-passing 220 corresponding to the phase-line winding, thereby improving work efficiency.

Referring to FIG. 3, in an embodiment, when the first insulating frame 200 is in a straight strip shape, the wire passing groove 220 has a linear structure, which can effectively prevent the bridge bridge wire from being loose or exposed to be pulled off. . Referring to FIG. 4, in one embodiment, when the first insulating bobbin 200 is in a straight strip shape, the outer side of the first insulating bobbin 200 has a linear structure.

Referring to FIGS. 5 and 6, in one embodiment, a first recess 310 is formed on an opposite side of the side of the second insulating bobbin 300 that is in contact with the stator core 100. The first recess 310 is adapted to mount the wiring pin 400.

Further, on the opposite side of the side where the second insulating bobbin 300 is in contact with the stator core 100, a boss 340 is provided on each of the winding portions 350 of the second insulating bobbin 300 away from the center side of the stator. A wire post 320 is disposed on both sides of the boss 340 in the circumferential direction of the stator core 100. A alignment groove 330 is formed between the keeper post 320 and the boss 340. The first groove 310 may be disposed on the boss 340.

It can be understood that after the phase wire is wound on the winding portion of the stator (not shown), the phase wire can be fixed to the terminal pin 400 through the wire fixing groove 330. At the same time, the struts 320 can further prevent different phase lines from contacting each other, thereby better avoiding hidden dangers caused by contact between different phase lines.

In the above-mentioned insulating skeleton, by providing the layered wire passing grooves 220, the winding lines are arranged without crossing each other for the phase lines, so that the phase lines do not cross each other, so that the short circuit between the phase lines can be effectively avoided. Case.

Referring to Figures 7 through 10, the present invention also provides a stator including a stator core 100 and the above-described insulating bobbin. The first insulating frame 200 is fixed to the first end of the stator core 100. The second insulating bobbin 300 is fixed to the second end of the stator core 100.

In the above stator, when the phase line 600 is wound on the stator through the layered through-line grooves 220, the phase lines 600 do not cross each other, so that short-circuit between the phase lines 600 can be effectively avoided. Happening.

Referring to Figures 8-10, in one embodiment, the stator of the present invention may further include a shield 500. The shield 500 is detachably mounted on the opposite side of the side of the second insulating bobbin 300 that is in contact with the stator core 100. The side of the shield 500 that is in contact with the second insulating bobbin 300 is further provided with a second recess 520 corresponding to the position of the first recess 310. The second recess 520 is adapted to enclose the wire portion formed by fixing the phase wire 600 to the terminal pin 400, and to protect the connection between the phase wire 600 and the terminal pin 400 from external damage. A fixing post 510 is disposed on an opposite side of the side of the fender 500 that is in contact with the second insulating bobbin 300. The fixed post 510 is suitable for a control panel of a stationary motor.

Preferably, the notch of the second groove 520 is provided with a chamfer 521. The chamfer 521 has a large angle to prevent the notch of the second groove 520 from crushing the phase line.

Preferably, the shield plate 500 includes at least two portions that abut each other in the circumferential direction, and the outer side of each portion of the shield plate 500 is provided with a side wall 530. The side wall 530 is a hollowed out structure. Specifically, the height of the intermediate portion of the side wall 530 in the axial direction of the stator is smaller than the height of both ends of the side wall 530 in the axial direction of the stator. The sidewall 530 is disposed as a hollow structure, which can facilitate the routing, and can also prevent the sidewall 530 from crushing the phase line 600, which is convenient for operation.

Further, a slot 540 is disposed on an opposite side of the side of the shield 500 that is in contact with the second insulating bobbin 300. The slot 540 is provided to increase the bonding strength of the stator molding compound.

In addition, the bottom of the second recess 520 is provided with a through hole 522 having a size matching the wiring pin 400. The shield 500 can be better secured to the second insulating frame 300 through the through holes 522.

In addition, the present invention also provides a stator assembly method suitable for assembling the above stator. In one embodiment, the stator assembly method includes the following steps:

S100, the stator core, the first insulating bobbin and the second insulating bobbin are respectively developed into a straight strip shape.

The stator core 100, the first insulating bobbin 200, and the second insulating bobbin 300 may be separately developed into a straight strip shape by a dedicated device.

S200, the first insulating bobbin and the second insulating bobbin are respectively installed at two ends of the stator core.

S300, inserting a wiring pin into the first depth in the first groove on the second insulating bobbin.

S400, winding the phase wire on the assembled stator core, the first insulating frame and the second insulating frame.

The phase line 600 may include a first phase line 610, a second phase line 620, and a third phase line 630. The wiring pin 400 includes a first wiring pin 410, a second wiring pin 420, a third wiring pin 430, and a common wiring pin 440. The first terminal pin 410 is for fixing the first phase line 610. The second terminal pin 420 is for fixing the second phase line 620. The third terminal pin 430 is for fixing the third phase line 630.

The winding portion of the stator may include a first predetermined winding portion, a second predetermined winding portion, and a third predetermined winding portion. The two adjacent first predetermined winding portions are spaced apart by one of the second predetermined winding portion and one of the third predetermined winding portions. The two adjacent second predetermined winding portions are spaced apart by one of the first predetermined winding portion and one of the third predetermined winding portions. The two adjacent third predetermined winding portions are spaced apart by one of the first predetermined winding portion and one of the second predetermined winding portions. The phase line wound between the first wiring pin 410 and the common wiring pin 440 is the first phase line. The phase line wound between the second wiring pin 420 and the common wiring pin 440 is the second phase line. The phase line wound between the third wiring pin 430 and the common wiring pin 440 is the third phase line.

In one embodiment, the winding process of winding the phase wire on the assembled stator core, the first insulating skeleton and the second insulating skeleton comprises:

S410, fixing the phase line on the first terminal pin, and winding the phase line on the preset stator corresponding to the first inlet/outlet port through the first inlet/outlet port and the first wireway On the winding section, and fix the phase wire to the common wiring pin.

S420, the phase wire is wound on the winding portion of the stator corresponding to the second inlet/outlet port through the second inlet/outlet port and the second wireway, and the phase line is fixed To the second wiring pin.

S430, fixing a phase line on the third terminal pin, and winding the phase line on the preset corresponding to the first inlet/outlet line through the third inlet/outlet port and the third wireway slot The winding portion of the stator is fixed to the common wiring pin.

The winding portion of the stator is composed of a winding portion (not shown) of the first insulating bobbin 200 assembled and a winding portion 350 of the second insulating bobbin 300.

Referring to Fig. 7, in one embodiment, a method of winding a phase winding to a stator having 12 stator teeth is taken as an example to explain the method of phase winding. In the present embodiment, the first insulating bobbin 200 is provided with two inlet/outlet ports at a portion corresponding to each stator tooth 110 of the stator core 100.

First, the third phase line 630 is wound. The phase wire 600 is fixed to the third terminal pin 430 mounted on the stator tooth A, and then the winding portion corresponding to the stator tooth A is started to be wound. After the winding of the stator tooth A is completed, the wire is taken out from the third inlet/outlet port 213 on the right side corresponding to the stator tooth A, passes through the stator tooth B and the stator tooth C through the third wire groove 223, and corresponds to the tooth D of the stator. The third inlet/outlet port 213 on the left side enters the stator tooth D, and starts winding the winding portion corresponding to the stator tooth D. After the winding of the stator tooth D is completed, the wire is taken out from the third inlet/outlet port 213 on the right side corresponding to the stator tooth D, passes through the stator tooth E and the stator tooth F through the third wire groove 223, and corresponds to the stator tooth G. The third inlet/outlet port 213 on the left side enters the stator teeth G, and starts winding the winding portions corresponding to the stator teeth G. After the winding of the stator teeth G is completed, the wires are taken out from the third inlet/outlet port 213 on the right side corresponding to the stator teeth G, and after passing through the stator teeth H and the stator teeth I through the third wire passing groove 223, corresponding to the stator teeth J The third inlet/outlet port 213 on the left side enters the stator tooth J, and starts winding the winding portion corresponding to the stator tooth J. After the stator teeth J are wound, the wires are taken out from the fourth wire grooves 330 corresponding to the stator teeth J, and the phase wires 600 are fixed to the common wiring pins 440 mounted on the stator teeth J.

Then, according to the same method, the second phase line 620 is wound. The phase line 600 is wound from the stator teeth K. After the stator tooth K is wound, the second inlet/outlet port 212 corresponding to the stator tooth K is taken out, and after the second wire groove 222 passes through the stator tooth J and the stator tooth I, the slave tooth H corresponds to the stator tooth H. The second inlet/outlet port 212 on the right side enters the stator tooth H, and starts winding the winding portion corresponding to the stator tooth H. After the winding of the stator tooth H is completed, the second inlet/outlet port 212 corresponding to the stator tooth H is taken out, and after passing through the stator tooth G and the stator tooth F through the second wire passing groove 222, it corresponds to the stator tooth E. The second inlet/outlet port 212 on the right side enters the stator teeth E, and starts winding the winding portions corresponding to the stator teeth E. After the winding of the stator teeth E is completed, the second inlet/outlet port 212 corresponding to the stator tooth E is taken out, and after passing through the stator tooth D and the stator tooth C through the second wire passing groove 222, it corresponds to the stator tooth B. The second inlet/outlet port 212 on the right side enters the stator teeth B, and the winding of the winding portion corresponding to the stator teeth B is started. After the stator teeth B are wound, the phase wires 600 are fixed to the second terminal pins 420 mounted on the bones of the stator teeth B.

Finally, the first phase line 610 is wound. The phase wire 600 is pulled from the second terminal pin 420 to the first terminal pin 410 mounted on the stator tooth C, and fixed, and the winding of the winding portion corresponding to the stator tooth C is started. After the winding of the stator teeth C is completed, the first inlet/outlet port 211 corresponding to the stator teeth C is taken out, and after passing through the stator teeth D and the stator teeth E through the first wire passing groove 221, the teeth are corresponding to the stator teeth F. The first inlet/outlet port 211 on the left side enters the stator teeth F, and starts to correspond to the stator teeth F The winding portion is wound. After the winding of the stator teeth F is completed, the first inlet/outlet port 211 corresponding to the stator tooth F is taken out, and after passing through the stator tooth G7 and the stator tooth H through the first wire passing groove 221, it corresponds to the stator tooth I. The first inlet/outlet port 211 on the left side enters the stator tooth I, and starts winding the winding portion corresponding to the stator tooth 1. After the winding of the stator tooth I is completed, the first inlet/outlet port 211 corresponding to the stator tooth I is taken out, and after passing through the stator tooth J and the stator tooth K through the first wire passing groove 221, it corresponds to the stator tooth L. The first inlet/outlet port 211 on the left side enters the stator teeth L, and the winding of the winding portion corresponding to the stator teeth L is started. After the winding of the stator teeth L is completed, the fourth line groove 330 corresponding to the stator teeth L is taken out, and the phase line 600 is fixed to the common wiring pin 440.

The phase lines of the first wiring pin 410 and the second wiring pin 420 will be connected by automatic or manual cutting. The winding of the stator wire set of the present invention has thus been completed. Compared with the general winding method, the winding speed is greatly increased, so that the production efficiency of the stator can be effectively improved.

It should be noted that the “left side” and the “right side” described in the embodiment are based on the angle of view shown in FIG. 7 .

It can be understood that the present invention does not limit the winding order of the first phase line 610, the second phase line 620, and the third phase line 630. For example, in other embodiments, the third phase line 630 may be wound first, the second phase line 620 may be wound, and the first phase line 610 may be finally wound.

In other embodiments, three phase lines can also be wound simultaneously. The three phase wires 600 are respectively fixed to the first wire pin 410, the second wire pin 420 and the third wire pin 430, and then the three phase wires 600 are passed through the corresponding inlet/outlet port 210 and the wire groove 220. Winding on the predetermined winding portion, finally three incense sticks 600 are fixed to the common wiring pin 440.

S500, inserting a wiring pin into a second depth in the first groove on the second insulating bobbin.

Wherein the second depth is greater than the first depth. Pressing the terminal pin 400 into the first groove 310 twice can solve the problem that the second insulating frame 300 can be damaged by pressing the wire pin 400 into the first groove 310 at a time.

S600, forming a circular shape of the stator core, the first insulating bobbin and the second insulating bobbin of the wound phase line group, and mounting the fender on the second insulating bobbin.

The stator assembly method is used to assemble the stator, and the assembly speed is fast, which is convenient for efficient automatic production.

The above-mentioned embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

An insulating skeleton includes a first insulating bobbin (200) and a second insulating bobbin (300) for mounting at both ends of a stator core (100) of the motor, wherein

The portion of the first insulating bobbin (200) corresponding to each stator tooth (110) of the stator core (100) is provided with at least two inlet/outlet ports (210), the first insulating skeleton ( The outer side of the 200) is further provided with a layered over-line groove (220), and the wire-passing groove (220) passes through the inlet/outlet port (210).
The insulating skeleton according to claim 1, wherein the inlet/outlet port (210) is a channel structure, and the inlet/outlet port (210) comprises three types, respectively being a first inlet/outlet port. (211), a second inlet/outlet port (212) and a third inlet/outlet port (213);

The first inlet/outlet port (211) has a first depth in an axial direction of the stator core (100), and the second inlet/outlet port (212) is at the stator core (100) a second depth in the axial direction, the third inlet/outlet port (213) having a third depth in the axial direction of the stator core (100);

The inlet/outlet ports (210) corresponding to each of the stator teeth (110) of the stator core (100) have the same depth in the axial direction of the stator core (100).
The insulating skeleton according to claim 2, wherein the first depth, the second depth, and the third depth are equal.
The insulating skeleton according to claim 2, wherein the first depth, the second depth, and the third depth are each unequal;

The wire trunking groove (220) includes a first wire passing groove (221), a second wire passing groove (222) and a third wire passing groove (223);

The first wire passing slot (221) passes through the bottom of the first inlet/outlet port (211);

The second wire passing slot (222) passes through the bottom of the second inlet/outlet port (212);

The third wire passing groove (223) passes through the bottom of the third inlet/outlet port (213).
The insulating skeleton according to claim 1, wherein when the first insulating bobbin (200) is developed into a straight strip shape, the over-line groove (220) has a linear structure.
The insulating skeleton according to any one of claims 1 to 5, characterized in that the opposite side of the side on which the second insulating bobbin (300) is in contact with the stator core (100) is provided with a plurality of A recess (310), the first recess (310) being adapted to mount a wiring pin (400).
The insulating skeleton according to claim 6, wherein said second insulating bobbin (300) is fixed On the opposite side of the side on which the sub-iron core (100) contacts, a boss (340) is disposed on each of the winding portions (350) of the second insulating bobbin (300) away from the center side of the stator;

And a baffle (320) is disposed on both sides of the boss (340) along the circumferential direction of the stator core (100), the baffle (320) and the boss (340) The alignment groove (330) is formed.
A stator comprising a stator core (100) and the insulating skeleton according to any one of claims 1 to 7.
The stator according to claim 8, wherein said stator further comprises a shield (500) detachably mounted on said second insulating bobbin (300) and said stator iron On the opposite side of the side on which the core (100) contacts;

The second side groove (520) corresponding to the position of the first groove (310) is further disposed on a side of the protective plate (500) contacting the second insulating frame (300);

A fixing post (510) is disposed on an opposite side of the side where the shield plate (500) is in contact with the second insulating bobbin (300), and the fixing post (510) is adapted to be used to fix a control board of the motor.
The stator according to claim 9, characterized in that the notch of the second groove (520) is provided with a chamfer (521).
The stator according to claim 9, wherein said shield plate (500) includes at least two portions that abut each other in the circumferential direction, and a side wall of each of said shield plates (500) is provided with a side wall (530) The height of the intermediate portion of the side wall (530) in the axial direction of the stator is smaller than the height of both ends of the side wall (530) in the axial direction of the stator.
The stator according to any one of claims 9 to 11, characterized in that the opposite side of the side of the shield plate (500) in contact with the second insulating bobbin (300) is provided with a slot (540) It is suitable for increasing the bonding strength of the stator injection molding compound.
A stator assembly method includes the following steps:

Expanding the stator core, the first insulating skeleton and the second insulating skeleton into a straight strip shape;

Mounting the first insulating bobbin and the second insulating bobbin at two ends of the stator core;

Inserting a wiring pin into the first recess in the first recess on the second insulating bobbin;

Winding the phase wire on the assembled stator core, the first insulating skeleton and the second insulating skeleton;

Inserting a wiring pin into a second depth in the first recess on the second insulating bobbin; the second depth is greater than the first depth;

Forming a circular shape of the stator core, the first insulating bobbin and the second insulating bobbin of the completed phase coil group, and fixing the shield Mounted on the second insulating skeleton.
The stator assembling method according to claim 13, wherein the wiring pin comprises a first wiring pin, a second wiring pin, a third wiring pin, and a common wiring pin;

The winding process of winding the phase wire on the assembled stator core, the first insulating skeleton and the second insulating skeleton is:

Fixing the phase line on the first terminal pin, and winding the phase line on the preset first and second inlet/outlet ports through the first inlet/outlet port and the first wireway Corresponding to the winding portion of the stator, and fixing the phase line to the common wiring pin;

Passing the phase line through the corresponding second inlet/outlet port and the second wireway, and winding the phase wire to a predetermined winding portion of the stator corresponding to the second inlet/outlet port Upper, and fixing the phase line to the second terminal pin;

Fixing the phase line on the third terminal pin, and winding the phase line on the preset first and second inlet/outlet ports through the third inlet/outlet port and the third wireway Corresponding to the winding portion of the stator, and fixing the phase wire to the common wiring pin.