CN204597654U - Insulation framework and there is its stator - Google Patents

Abstract

The utility model relates to an insulating skeleton and a stator with the same. Insulation frame, including a first insulation frame and a second insulation frame for installation at both ends of the stator core of the motor; the part of the first insulation frame corresponding to each stator tooth of the stator core is provided with at least two inlet/outlet ports ; The outer side of the first insulating frame is also provided with layered wire slots; the wire slots pass through the inlet/outlet. The above-mentioned insulation skeleton can set winding routes for the phase wires that do not cross each other through the wire slots arranged in layers, so there will be no crossing between the phase wires, thereby effectively avoiding short circuits between the phase wires Case. The utility model also proposes a stator with the above insulating frame.

Description

Insulation frame and stator with same

technical field

The utility model relates to the field of motors, in particular to an insulating skeleton and a stator with the same.

Background technique

The general motor body includes components such as a stator, a rotor, and a casing. Among them, the stator includes stator core, insulating frame, winding and other structures. The existing windings are distributed on different stator teeth of the stator, and the windings of different phase lines may cross the lines. However, if the winding paint is scratched or aged, it will cause partial bare copper on the phase line. Therefore, the winding may be short-circuited.

Utility model content

Based on this, it is necessary to provide an insulating frame for solving the problem of phase wires intersecting each other when winding the phase wires.

An insulating frame, including a first insulating frame and a second insulating frame installed at both ends of a motor stator core;

The part of the first insulating frame corresponding to each stator tooth of the stator core is provided with at least two wire inlet/outlet openings, and the outer side of the first insulating frame is also provided with layered wire slots, The wire slot passes through the wire inlet/outlet.

In one of the embodiments, the wire inlet/outlet is a slot structure, and the wire inlet/outlet includes three types, namely the first wire inlet/outlet, the second wire inlet/outlet and the third wire inlet/outlet mouth;

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

The wire inlet/outlet corresponding to each stator tooth of the stator core has 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 of the embodiments, the first depth, the second depth and the third depth are not equal;

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

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

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

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

In one of the embodiments, when the first insulating framework is in the shape of a straight strip, the wire passing groove is in a linear structure.

In one of the embodiments, a plurality of first grooves are formed on the side opposite to the side of the second insulating frame in contact with the stator core, and the first grooves are suitable for installing connection pins.

In one of the embodiments, on the side opposite to the side where the second insulating frame is in contact with the stator core, a boss is provided on each winding portion of the second insulating frame away from the center of the stator;

In addition, a wire retaining post is provided on both sides of the boss along the circumferential direction of the stator core, and a wire alignment slot is formed between the retaining post and the boss.

The utility model also proposes a stator, which includes a stator core and the above-mentioned insulating frame.

In one of the embodiments, the stator further includes a protective plate, and the protective plate is detachably installed on the side opposite to the side where the second insulating frame is in contact with the stator core;

A second groove corresponding to the position of the first groove is also provided on the side of the protective plate in contact with the second insulating frame;

A fixing post is provided on the opposite side of the protective plate in contact with the second insulating frame, and the fixing post is suitable for fixing the control board of the motor.

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

In one of the embodiments, the protective plate includes at least two parts that abut each other in the circumferential direction, and a side wall is provided on the outer side of each part of the protective plate, and the middle part of the side wall is in the axial direction of the stator. The height above is less than the height of both ends of the side wall in the axial direction of the stator.

In one embodiment, slots are provided on the side opposite to the side of the protective plate in contact with the second insulating frame, which is suitable for increasing the bonding strength of the injection molded compound of the stator.

The above-mentioned insulation skeleton sets winding routes for the phase wires that do not cross each other through the wire slots arranged in layers, so that there will be no crossing between the phase wires, so that the short circuit between the phase wires can be effectively avoided. Condition. The above-mentioned stator has the advantages of the above-mentioned insulating skeleton.

Description of drawings

Fig. 1 is the structural representation when the first insulating frame in one embodiment of the insulating frame of the present invention is a straight strip;

Fig. 2 is a schematic structural view of the first insulating frame in another embodiment of the utility model when the insulating frame is straight;

Fig. 3 is a schematic diagram of the three-dimensional structure of the first insulating frame in one embodiment of the insulating frame of the present invention;

Fig. 4 is the top view of Fig. 3;

Fig. 5 is a three-dimensional structural schematic diagram of one unit of the second insulating frame in an embodiment of the insulating frame of the present invention;

Figure 6 is a top view of Figure 5;

Fig. 7 is a schematic diagram of a phase wiring scheme of an embodiment of the stator of the present invention;

Fig. 8 is a schematic diagram of the three-dimensional structure of the protective plate in the first viewing angle of an embodiment of the stator of the present invention;

Fig. 9 is a schematic diagram of the second perspective perspective structure of the protective plate in an embodiment of the stator of the present invention;

Fig. 10 is a schematic diagram of a stator of an embodiment of the utility model after the stator is wound with wire groups and formed into a circle.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the specific implementation of the insulation frame and the stator with it of the utility model will be described below with reference to the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Referring to FIG. 1 to FIG. 6 , in one embodiment, the insulation framework of the present invention includes a first insulation framework 200 and a second insulation framework 300 for being installed at both ends of a motor stator core 100 . A portion of the first insulating frame 200 corresponding to each stator tooth 110 of the stator core 100 is provided with at least two wire inlet/outlet ports 210 . The outer side of the first insulating frame 100 is also provided with layered wire passing grooves 220 . The wire slot 220 passes through the wire inlet/outlet 210 .

The above-mentioned insulating skeleton, through the wire slots 220 arranged in layers, sets winding routes for the phase wires that do not cross each other, so there will be no crossing between the phase wires, so that short circuits between the phase wires can be effectively avoided Case.

Referring to FIG. 1 and FIG. 2 , in one embodiment, the cable inlet/outlet 210 is a slot structure. The cable inlet/outlet 210 includes a first cable inlet/outlet 211 , a second cable inlet/outlet 212 and a third cable inlet/outlet 213 . Wherein, the first wire inlet/outlet 211 has a first depth in the axial direction of the stator core 100 . The second wire inlet/outlet 212 has a second depth in the axial direction of the stator core 100 . The third wire inlet/outlet 213 has a third depth in the axial direction of the stator core 100 . And the inlet/outlet openings 210 corresponding to each stator tooth 110 of the stator core 100 have 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 layer of wire passing slots 220 arranged in layers passes through the first wire inlet/outlet 211 , the second wire inlet/outlet 212 and the third wire inlet/outlet 213 .

Certainly, the first depth, the second depth and the third depth may also be different from each other. As shown in FIG. 1 , the wire passing slot 220 includes a first wire passing slot 221 , a second wire passing slot 222 and a third wire passing slot 223 . The first wire passing slot 221 passes through the bottom of the first wire inlet/outlet 211 . The second wire passing slot 222 passes through the bottom of the second wire inlet 212 . The third wire passing slot 223 passes through the bottom of the third wire inlet 213 . In this way, when winding the stator, it is beneficial to locate the wire passing slot 220 corresponding to the phase wire, which can effectively prevent the phase wire from being wound in the wrong corresponding wire passing slot 220, thereby improving the working efficiency.

Referring to Fig. 3, in one embodiment, when the first insulating frame 200 is straight, the wire passing groove 220 is a straight line structure, which can effectively prevent the stator bridge wires from loosening and being exposed or being stretched so as to be broken. . Referring to FIG. 4 , in one embodiment, when the first insulating frame 200 is straight, the outer side of the first insulating frame 200 is a linear structure.

Referring to FIG. 5 and FIG. 6 , in one embodiment, a first groove 310 is opened on the opposite side of the side of the second insulating frame 300 in contact with the stator core 100 . The first groove 310 is suitable for installing the terminal pin 400 .

In addition, on the side opposite to the side where the second insulating frame 300 is in contact with the stator core 100 , a boss 340 is provided on each winding portion 350 of the second insulating frame 300 away from the center of the stator circle. Wire retaining posts 320 are provided on both sides of the boss 340 along the circumferential direction of the stator core 100 . A line alignment groove 330 is formed between the line retaining 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 part (not shown in the figure) of the stator, the phase wire can be fixed to the connection pin 400 through the wire alignment slot 330 . At the same time, the wire retaining column 320 can further prevent different phase wires from contacting each other, so as to better avoid hidden dangers caused by contact between different phase wires.

The above-mentioned insulating skeleton, by setting the layered wire slots 220, sets winding routes for the phase wires that do not cross each other, so that there will be no crossing between the phase wires, thereby effectively avoiding short circuits between the phase wires Case.

Referring to FIG. 7 to FIG. 10 , the utility model also proposes a stator, including a stator core 100 and the above-mentioned insulating frame. Wherein, the first insulating frame 200 is fixed on the first end of the stator core 100 . The second insulating frame 300 is fixed on the second end of the stator core 100 .

In the above-mentioned stator, when the phase wires 600 are wound on the above-mentioned stator through the layered wire passing slots 220, there will be no crossing between the phase wires 600, so that the occurrence of a short circuit between the phase wires 600 can be effectively avoided. Condition.

Referring to FIG. 8 to FIG. 10 , in an embodiment, the stator of the present invention may further include a protective plate 500 . The protective plate 500 is detachably installed on the side opposite to the side of the second insulating frame 300 in contact with the stator core 100 . A second groove 520 corresponding to the position of the first groove 310 is further provided on the side of the protective plate 500 in contact with the second insulating frame 300 . The second groove 520 is suitable for containing the welding wire portion formed by fixing the phase wire 600 to the connection pin 400 and protecting the connection between the phase wire 600 and the connection pin 400 from external damage. A fixing column 510 is provided on the side opposite to the side of the protective plate 500 in contact with the second insulating frame 300 . The fixing post 510 is suitable for fixing the control board of the motor.

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

Preferably, the protective plate 500 includes at least two parts that are abutted with each other in the circumferential direction, and the outer side of each part of the protective plate 500 is provided with a side wall 530 . The sidewall 530 is a hollow structure. Specifically, the height of the middle part of the side wall 530 in the axial direction of the stator is smaller than the height of the two ends of the side wall 530 in the axial direction of the stator. Setting the side wall 530 as a hollow structure can facilitate wiring, and at the same time prevent the side wall 530 from crushing the phase line 600 , which is convenient for operation.

Further, slots 540 are provided on the side opposite to the side of the protective plate 500 in contact with the second insulating frame 300 . The slot 540 is provided to increase the bonding strength of the injection molding compound of the stator.

In addition, the bottom of the second groove 520 is provided with a through hole 522 whose size matches that of the connecting pin 400 . The protective plate 500 can be better fixed to the second insulating frame 300 through the through hole 522 .

In addition, the above stator can be assembled together by the following assembly steps:

S100, respectively unfolding the stator core, the first insulating frame and the second insulating frame into straight strips.

The stator core 100 , the first insulating frame 200 and the second insulating frame 300 can be unfolded into straight strips by special equipment.

S200. Install the first insulating frame and the second insulating frame on two ends of the stator core respectively.

S300. Insert a connection pin into the first groove on the second insulating frame to a first depth.

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

Wherein, the phase lines 600 may include a first phase line 610 , a second phase line 620 and a third phase line 630 . The connecting pin 400 includes a first connecting pin 410 , a second connecting pin 420 , a third connecting pin 430 and a common connecting pin 440 . The first connecting pin 410 is used to fix the first phase line 610 . The second connecting pin 420 is used to fix the second phase line 620 . The third connection pin 430 is used to fix the third phase line 630 .

The winding part of the stator may include a first preset winding part, a second preset winding part and a third preset winding part. One second preset winding part and one third preset winding part are separated between two adjacent first preset winding parts. One first preset winding part and one third preset winding part are separated between two adjacent second preset winding parts. One first preset winding part and one second preset winding part are separated between two adjacent third preset winding parts. The phase line wound between the first connection pin 410 and the common connection pin 440 is the first phase line. The phase line wound between the second connection pin 420 and the common connection pin 440 is the second phase line. The phase line wound between the third connection pin 430 and the common connection pin 440 is the third phase line.

In one embodiment, the winding process of winding the phase wires on the assembled stator core, the first insulating frame and the second insulating frame includes:

S410, fix the phase wire on the first connection pin, and wind the phase wire around the preset part of the stator corresponding to the first wire inlet/outlet through the first wire inlet/outlet and the first wire passing slot On the winding part, and fix the phase wire to the common terminal pin.

S420, wind the phase wire on the preset winding part of the stator corresponding to the second wire inlet/outlet through the second wire inlet/outlet and the second wire passing slot, and fix the phase wire to the second terminal pin.

S430. Fix the phase wire on the third connection pin, wind the phase wire on the preset On the winding part of the stator, and fix the phase wire to the common terminal pin.

Wherein, the winding portion of the stator is composed of the winding portion (not shown) of the first insulating frame 200 and the winding portion 350 of the second insulating frame 300 assembled together.

Referring to FIG. 7 , in one embodiment, taking the winding of a phase wire to a stator with 12 stator teeth as an example, the process of winding the phase wire is described in detail. In this embodiment, the part of the first insulating frame 200 corresponding to each stator tooth 110 of the stator core 100 is provided with two inlet/outlet ports.

First, the third phase wire 630 is wound. Fix the phase wire 600 to the third connection pin 430 installed on the stator tooth A, and then start winding the winding part corresponding to the stator tooth A. After the winding of stator tooth A is completed, the wire exits from the third inlet/outlet port 213 on the right side corresponding to stator tooth A, passes through the third wire slot 223 and passes through stator tooth B and stator tooth C, and then from the corresponding stator tooth D The third wire inlet/outlet 213 on the left side enters the stator tooth D, and starts to wind the winding part corresponding to the stator tooth D. After the winding of stator tooth D is completed, the wire exits from the third inlet/outlet port 213 on the right side corresponding to stator tooth D, passes through the third wire slot 223 and passes through stator tooth E and stator tooth F, and then from the third line corresponding to stator tooth G The third wire inlet/outlet 213 on the left side enters the stator tooth G, and starts to wind the winding part corresponding to the stator tooth G. After the winding of the stator tooth G is completed, the wire exits from the third inlet/outlet port 213 on the right side corresponding to the stator tooth G, passes through the third wire slot 223, passes through the stator tooth H and the stator tooth I, and then passes through the third wire passage corresponding to the stator tooth J. The third wire inlet/outlet 213 on the left side enters the stator tooth J, and starts to wind the winding part corresponding to the stator tooth J. After the winding of the stator tooth J is completed, the wires go out from the fourth slot 330 corresponding to the stator tooth J, and the phase wire 600 is fixed to the common connection pin 440 installed on the stator tooth J.

Then, according to the same method, the second phase wire 620 is wound. The phase wire 600 is wound starting from the stator tooth K. After the winding of the stator tooth K is completed, the wire exits from the second inlet/outlet port 212 on the left side corresponding to the stator tooth K, passes through the second wire slot 222 and passes through the stator tooth J and the stator tooth I, and then the wire corresponds to the stator tooth H The second wire inlet/outlet 212 on the right side enters the stator tooth H, and starts to wind the winding part corresponding to the stator tooth H. After the winding of the stator tooth H is completed, the wire exits from the second inlet/outlet port 212 on the left side corresponding to the stator tooth H, passes through the second wire slot 222 and passes through the stator tooth G and stator tooth F, and then from the second wire passage corresponding to the stator tooth E The second wire inlet/outlet port 212 on the right side enters the stator tooth E, and starts to wind the winding part corresponding to the stator tooth E. After the winding of the stator tooth E is completed, the wire exits from the second inlet/outlet port 212 on the left side corresponding to the stator tooth E, passes through the second wire slot 222 and passes through the stator tooth D and the stator tooth C, and then the wire corresponds to the stator tooth B. The second wire inlet/outlet port 212 on the right side enters the stator tooth B, and starts to wind the winding part corresponding to the stator tooth B. After the winding of the stator tooth B is completed, the phase wire 600 is fixed to the second connecting pin 420 installed on the upper bone of the stator tooth B.

Finally, the first phase wire 610 is wound. Pull the phase wire 600 from the second connecting pin 420 to the first connecting pin 410 installed on the stator tooth C, and fix it, and start winding the winding part corresponding to the stator tooth C. After the winding of stator tooth C is completed, the wire exits from the first inlet/outlet port 211 on the right side corresponding to stator tooth C, passes through the first wire slot 221 and passes through stator tooth D and stator tooth E, and then from the corresponding stator tooth F The first wire inlet/outlet 211 on the left side enters the stator tooth F, and starts to wind the wire winding part corresponding to the stator tooth F. After the winding of the stator tooth F is completed, the wire exits from the first inlet/outlet port 211 on the right side corresponding to the stator tooth F, passes through the first wire slot 221 and passes through the stator tooth G7 and stator tooth H, and then from the corresponding stator tooth I The first wire inlet/outlet 211 on the left side enters the stator tooth 1, and starts to wind the winding part corresponding to the stator tooth 1. After the winding of the stator tooth I is completed, the wire exits from the first inlet/outlet port 211 on the right side corresponding to the stator tooth I, passes through the first wire slot 221, passes through the stator tooth J and the stator tooth K, and passes through the stator tooth L corresponding to the stator tooth L. The first wire inlet/outlet 211 on the left side enters the stator tooth L, and starts to wind the winding part corresponding to the stator tooth L. After the winding of the stator teeth L is completed, the wires exit from the fourth slot 330 corresponding to the stator teeth L, and the phase wires 600 are fixed to the common connection pins 440 .

The phase wire connecting the first connection pin 410 and the second connection pin 420 is automatically or manually cut. So far, the winding of the stator wire group of the present utility model is completed. Compared with the general winding method, this winding speed is greatly improved, so it can effectively improve the production efficiency of the stator.

It should be noted that the “left side” and “right side” mentioned in this embodiment are based on the viewing angle shown in FIG. 7 .

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

In other embodiments, three phase wires can also be wound at the same time. Fix the three phase wires 600 to the first connecting pin 410, the second connecting pin 420 and the third connecting pin 430 respectively, and then connect the three phase wires 600 It is wound on the preset winding part, and finally the three incense wires 600 are fixed on the common connecting pin 440 .

S500. Insert a connection pin into the first groove on the second insulating frame to a second depth.

Wherein, the second depth is greater than the first depth. Pressing the connection pin 400 into the first groove 310 twice can solve the problem of pressure damage to the second insulating frame 300 that may occur when the connection pin 400 is pressed into the first groove 310 once.

S600. Make the stator core, the first insulating frame and the second insulating frame after winding the phase wire group into a circle, and install the protective plate on the second insulating frame.

In the above-mentioned stator, when the phase wires 600 are wound on the above-mentioned stator through the layered wire passing slots 220, there will be no crossing between the phase wires 600, so that the occurrence of a short circuit between the phase wires 600 can be effectively avoided. Condition.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (12)

1. an insulation framework, comprising the first insulation framework (200) for being arranged on motor stator core (100) two ends and the second insulation framework (300), it is characterized in that,

Described first insulation framework (200) part corresponding with each stator tooth (110) of described stator core (100) is equipped with at least two entry/exit line mouths (210), the outside of described first insulation framework (200) is also provided with the crossed beam trunking (220) of layering setting, and described crossed beam trunking (220) is through described entry/exit line mouth (210).

2. insulation framework according to claim 1, it is characterized in that, described entry/exit line mouth (210) is groove structure, described entry/exit line mouth (210) comprises three types, is respectively the first entry/exit line mouth (211), the second entry/exit line mouth (212) and the 3rd entry/exit line mouth (213);

Described first entry/exit line mouth (211) has first degree of depth on the axis direction of described stator core (100), described second entry/exit line mouth (212) has second degree of depth on the axis direction of described stator core (100), and described 3rd entry/exit line mouth (213) has the 3rd degree of depth on the axis direction of described stator core (100);

The entry/exit line mouth (210) corresponding with each stator tooth (110) of described stator core (100) has the identical degree of depth on the axis direction of described stator core (100).

3. insulation framework according to claim 2, is characterized in that, described first degree of depth, described second degree of depth and described 3rd deep equality.

4. insulation framework according to claim 2, is characterized in that, described first degree of depth, described second degree of depth and described 3rd degree of depth are each unequal;

Described crossed beam trunking (220) comprises the first crossed beam trunking (221), the second crossed beam trunking (222) and the 3rd crossed beam trunking (223);

Described first crossed beam trunking (221) is through the bottom of described first entry/exit line mouth (211);

Described second crossed beam trunking (222) is through the bottom of described second entry/exit line mouth (212);

Described 3rd crossed beam trunking (223) is through the bottom of described 3rd entry/exit line mouth (213).

5. insulation framework according to claim 1, is characterized in that, when described first insulation framework (200) expands into vertical bar shape, and described crossed beam trunking (220) linearly type structure.

6. the insulation framework according to claim 1 to 5 any one, it is characterized in that, described second insulation framework (300) contact with described stator core (100) side opposite flank on offer multiple first groove (310), described first groove (310) be applicable to install wiring contact pin (400).

7. insulation framework according to claim 6, it is characterized in that, on the opposite flank of the side that described second insulation framework (300) contacts with described stator core (100), in each winding section (350) of described second insulation framework (300), side, the described stator center of circle is provided with boss (340);

And be provided with gear terminal (320) at described boss (340) along the both sides of described stator core (100) circumferencial direction, form alignment groove (330) between described gear terminal (320) and described boss (340).

8. a stator, is characterized in that, comprises insulation framework described in stator core (100), claim 1 to 7 any one.

9. stator according to claim 8, it is characterized in that, described stator also comprises protective plate (500), on the dismountable opposite flank being arranged on the side that described second insulation framework (300) contacts with described stator core (100) of described protective plate (500);

Described protective plate (500) contacts side and is also provided with second groove (520) corresponding with described first groove (310) position with described second insulation framework (300);

Described protective plate (500) contacts on the opposite flank of side with described second insulation framework (300) and is provided with fixed leg (510), and described fixed leg (510) is applicable to the control board of fixed electrical machinery.

10. stator according to claim 9, is characterized in that, the notch of described second groove (520) is provided with chamfering (521).

11. stators according to claim 9, it is characterized in that, described protective plate (500) at least comprises two parts of circumferentially docking mutually, the outside of every part of described protective plate (500) is provided with sidewall (530), and the height of mid portion on described stator shaft orientation of described sidewall (530) is less than the height of two ends on described stator shaft orientation of described sidewall (530).

12. stators according to claim 9 to 11 any one, it is characterized in that, the opposite flank of the side that described protective plate (500) contacts with described second insulation framework (300) is provided with slot (540), is applicable to the bond strength increasing stator injection moulding plastic packaging material.