CN113489207A

CN113489207A - Stator winding structure, stator module, motor, compressor and air conditioner

Info

Publication number: CN113489207A
Application number: CN202110851608.5A
Authority: CN
Inventors: 郭红; 张强
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai; Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-10-08

Abstract

The present application provides a stator winding structure, a stator assembly, a motor, a compressor and an air conditioner, comprising a stator body and a winding set, wherein the winding set is wound on the stator body; the winding set has a puncturing position, and the puncturing position located on the upper part of the stator body. According to the stator winding structure, stator assembly, motor, compressor and air conditioner of the present application, the insulation performance of the stator assembly and the safety of the motor can be improved.

Description

Stator winding structure, stator module, motor, compressor and air conditioner

Technical Field

The application belongs to the technical field of air conditioners, and particularly relates to a stator winding structure, a stator assembly, a motor, a compressor and an air conditioner.

Background

At present, when a stator winding structure in the prior art is used for a stator assembly motor, the liquid level of the refrigeration oil dissolving part of a refrigerant can rise after the refrigerant is injected into the stator assembly in a standing state, and poor insulation can occur when the liquid level exceeds the part exposed outside below the stator.

Therefore, how to provide a stator winding structure, a stator assembly, a motor, a compressor and an air conditioner, which can improve the insulation performance of the stator assembly and the safety of the motor, is a problem to be solved urgently by those skilled in the art.

Disclosure of Invention

Therefore, the technical problem that this application will be solved lies in providing a stator winding structure, stator module, motor, compressor and air conditioner, can improve stator module's insulating properties and motor security.

In order to solve the above problems, the present application provides a stator winding structure including:

a stator body;

the winding group is wound on the stator body; the winding group has a puncture position located at an upper portion of the stator body.

Further, the leading-out wire of the winding group extends to the upper part of the stator body; and/or the outer part of the outgoing line of the winding group is wrapped with an insulating structure.

Furthermore, the stator body comprises tooth parts, the winding group is a multi-phase winding, each phase winding comprises phase lines, and the phase lines of each phase winding are sequentially wound on at least two tooth parts; and/or stator slots are formed between two adjacent teeth, and the number of the stator slots is at least six.

Further, the phase line comprises an extension section, and the phase line extends from one tooth part to the other tooth part through the extension section; the extending section comprises a puncture section and a leading-out section, the puncture section is positioned at the upper end of the stator body, and the puncture position is positioned on the puncture section; the leading-out sections are located at the lower end of the stator body, and the leading-out sections are disconnected to form leading-out wires on the tooth portions where the leading-out sections are located respectively.

Furthermore, the winding group is a three-phase winding, the outgoing line of the phase line of each phase winding is twisted into an outgoing line group, and the outgoing line group extends to the upper part of the stator body.

Furthermore, the teeth comprise a first tooth, a second tooth and a third tooth which are arranged along the circumferential direction of the stator body, and phase lines of the same phase are sequentially wound on the first tooth, the second tooth and the third tooth; the phase lines extend from the first tooth part to the second tooth part on the upper end face of the stator body and then extend from the second tooth part to the third tooth part on the lower end face of the stator body; the phase line between the second tooth part and the third tooth part is disconnected, and an outgoing line on the second tooth part and an outgoing line on the third tooth part are respectively formed; the penetrating end of the phase line forms a leading-out wire on the first tooth part;

or the phase lines extend from the first tooth part to the second tooth part on the upper end face of the stator body and then extend from the second tooth part to the third tooth part on the upper end face of the stator body; a phase line between the first tooth part and the second tooth part extends to the lower end face of the stator body and is disconnected, and a leading-out line on the first tooth part and a leading-out line on the second tooth part are respectively formed; the penetrating end of the phase line forms a leading-out wire on the first tooth part.

Furthermore, the stator winding structure also comprises a puncture part which electrically connects the puncture sections of the phase lines at the puncture position.

Further, the piercing portion includes a piercing terminal or a crimping member.

Further, the phase lines are connected by welding or riveting.

According to still another aspect of the present application, there is provided a stator assembly including a stator winding structure, the stator winding structure being the above-described stator winding structure.

According to still another aspect of the present application, there is provided an electric machine including the electric machine described above.

According to a further aspect of the present application, there is provided a compressor comprising a motor, wherein the motor is the motor described above.

According to still another aspect of the present application, there is provided an air conditioner including a compressor, wherein the compressor is the above-mentioned compressor.

The application provides a stator winding structure, stator module, motor, compressor and air conditioner improves stator module's insulating properties and motor security.

Drawings

Fig. 1 is a schematic winding structure diagram of a U-phase line on an upper end surface of a stator body according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a winding of a U-phase line on a lower end surface of a stator body according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of windings of the V-phase line on the upper end surface of the stator body according to the embodiment of the present application;

fig. 4 is a schematic structural diagram of windings of the V-phase line on the lower end surface of the stator body according to the embodiment of the present application;

fig. 5 is a schematic structural diagram of windings of W phase lines on an upper end surface of a stator body according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of windings of W phase lines on a lower end surface of a stator body according to an embodiment of the present application;

fig. 7 is a schematic view of a winding structure on an upper end surface of a stator body according to an embodiment of the present application;

fig. 8 is a schematic view of a winding structure on a lower end surface of a stator body according to an embodiment of the present application;

fig. 9 is a schematic view of an unwinding winding structure of a stator body according to an embodiment of the present application;

FIG. 10 is a schematic view of a winding structure according to an embodiment of the present application;

FIG. 11 is a schematic structural view of a stator assembly of an embodiment of the present application;

fig. 12 is a schematic view of a winding structure according to another embodiment of the present application.

The reference numerals are represented as:

1. a stator body; 11. a stator core; 12. a stator upper end framework; 13. a stator lower end framework; 2. winding; 21. an outgoing line; 22. a break-off point; 3. a tooth portion; 31. a first tooth portion; 32. a second tooth portion; 33. a third tooth portion; 341. a first stator tooth; 342. a second stator tooth; 343. a third stator tooth; 344. a fourth stator tooth; 345. a fifth stator tooth; 346. a sixth stator tooth; 347. a seventh stator tooth; 348. an eighth stator tooth; 349. a ninth stator tooth; 4. a puncturing part.

Detailed Description

Referring to fig. 1-12 in combination, a stator winding structure includes a stator body 1 and a winding group 2, wherein the winding group 2 is wound on the stator body 1; the winding group 2 has a piercing position located at an upper portion of the stator body 1. The puncture terminal or the buckle exposed outside in the static process is not contacted with the refrigerant oil and the refrigerant, the safety distance between the liquid level of the refrigerant oil and the puncture terminal exposed outside is increased, and the insulation resistance of the compressor motor is improved. This application can increase air condition compressor's insulating properties, reduces its to outer leakage current, and increase insulation resistance improves the security and the motor performance of compressor and motor. For a vertical compressor, the piercing terminal and the crimping piece are required to be located on the upper end face of the stator structure, no matter the upper end face is a lead end or a non-lead end, the piercing position is located on the upper end face, and for a horizontal compressor, the piercing position is required to be located on the compressor by taking the base as a reference surface, namely, on the side far away from an oil pool at the bottom of the compressor.

The application also discloses some embodiments, the leading-out wire 21 of the winding group 2 extends to the upper part of the stator body 1; and/or, the outer part of the leading-out wire 21 of the winding group 2 is wrapped with an insulation structure. The lower end framework of the stator structure can not be provided with exposed parts which are easy to conduct electricity, such as copper sheets, crimping sheets, puncture terminals and the like. This application promotes its withstand voltage's ability on original basis, improves the security of compressor and motor.

The application also discloses some embodiments, the stator body 1 comprises tooth parts 3, the winding group 2 is a multi-phase winding, each phase winding comprises phase lines, and the phase lines of each phase winding are sequentially wound on at least two tooth parts 3; and/or stator slots are formed between two adjacent tooth parts 3, and the number of the stator slots is at least six. The winding structure is characterized in that the stator is concentrated and wound in parallel. The number of the stator slots can be six or nine, and the number of the stator slots is designed according to requirements.

The present application also discloses embodiments in which the phase wires comprise an extension through which they extend from one tooth 3 to the other tooth 3; the extension section comprises a puncture section and a leading-out section, the puncture section is positioned at the upper end of the stator body 1, and the puncture position is positioned on the puncture section; the lead-out sections are located at the lower end of the stator body 1, and the lead-out sections are disconnected to form lead-out wires 21 on the tooth portions 3 where the lead-out sections are located respectively. The stator body 1 comprises a stator iron core 11, a stator upper end framework 12 and a stator lower end framework 13; the lead wires 21 of the teeth 3 are formed by cutting the windings at the breaks 22 of the corresponding two teeth 3.

The application also discloses some embodiments, the winding group 2 is a three-phase winding, the outgoing lines 21 of the phase lines of each phase winding are twisted into the outgoing lines 21, and the outgoing lines 21 extend to the upper part of the stator body 1. The outgoing lines 21 corresponding to the first stator tooth 341, the fourth stator tooth 344 and the seventh stator tooth 347 at the lower end of the stator core 11 are wired in a layered manner through the framework and twisted together at the position of the stator slot, and then are wrapped by a material containing strong insulation and then are stretched from the inside of the stator slot to the upper end of the stator core 11, and at the moment, the end face of the non-outgoing line 21 of the stator cannot be exposed to the outside and is easy to conduct. The second stator tooth 342, the fifth stator tooth 345 and the eighth stator tooth 348 are as above; the third stator tooth 343, the sixth stator tooth 346 and the ninth stator tooth 349 are formed in the same manner as described above. At this time, the U phase is a portion where the lead wires 21 of the first stator tooth 341, the fourth stator tooth 344, and the seventh stator tooth 347 are twisted together; the V-phase is a portion where the second stator tooth 342, the fifth stator tooth 345, and the eighth stator tooth 348 are twisted together, and the W-phase is a portion where the third stator tooth 343, the sixth stator tooth 346, and the ninth stator tooth 349 are twisted together. The entire parallel winding scheme is now complete.

The number of the stator slots is not limited, six slots or nine slots and the like are designed according to requirements, but the winding form must adopt concentrated winding. In the process of winding, the copper wire enters from the upper end of the stator core 11 of the stator slot to be wound in a concentrated mode, the copper wire is wound to the corresponding seventh stator tooth 347 through passing the wire at the lower end of the stator slot, then the wire cutting operation is performed on the upper end of the stator core 11 after the winding is finished, then the copper wire enters from the upper end of the stator core 11 of the fourth stator tooth 344 to be wound in a concentrated mode, and the wire cutting operation is performed on the lower end of the core.

The application also discloses some embodiments, the tooth part 3 comprises a first tooth part 31, a second tooth part 32 and a third tooth part 33 which are arranged along the circumferential direction of the stator body 1, and phase lines of the same phase are sequentially wound on the first tooth part 31, the second tooth part 32 and the third tooth part 33; the phase lines extend from the first tooth portion 31 to the second tooth portion 32 on the upper end surface of the stator body 1, and extend from the second tooth portion 32 to the third tooth portion 33 on the lower end surface of the stator body 1; the phase line between the second tooth part 32 and the third tooth part 33 is disconnected, and an outgoing line 21 on the second tooth part 32 and an outgoing line 21 on the third tooth part 33 are respectively formed; the penetrating end of the phase wire forms the outgoing wire 21 on the first toothing 31. In the winding process, U, V, W three-phase copper wires respectively enter from the upper parts of a first stator tooth 341, a second stator tooth 342 and a third stator tooth 343 to be wound, then the three-phase copper wires enter into stator slots through a framework layered wire passing from the lower end of a stator structure and are wound on the corresponding third stator tooth 343, fourth stator tooth 344 and fifth stator tooth 345, the stator copper wires are cut at the upper end of the iron core after the winding is finished, then the copper wires are wound from a seventh stator tooth 347, an eighth stator tooth 348 and a ninth stator tooth 349 of the stator iron core 11, the copper wires are cut from the lower end of the stator iron core 11, and penetrating end leads and penetrating sections of the seventh stator tooth, the eighth stator tooth 348 and the ninth stator tooth 349 are connected by using a special crimping piece or a piercing terminal. Nine lines are further arranged on the upper end face, the outgoing line 21 of the first stator tooth 341, the fourth stator tooth 344 and the seventh stator tooth 347 is twisted on the position of the fourth stator tooth 344 in a layering mode through a framework wire, and the outgoing line 21 of the second stator tooth 342, the fifth stator tooth 345 and the eighth stator tooth 348 is fixed on the position of the fifth stator tooth 345 in a twisting mode in the same manner; the outgoing line 21 of the third stator tooth 343, the sixth stator tooth 346, and the ninth stator tooth 349 is fixed at the position of the sixth stator tooth 346 by a kink. The twisted together wires fixed at the position of the fourth stator tooth 344 are passed through the insulating material and then drawn from the stator slots to the upper end of the stator core 11, similarly to U, V, W. At this time, the U, V, W three-phase lead-out wire 21 is positioned on the same side as the puncture terminal and the buckle. The stator body 1 is vertical here, so the stator body 1 has an upper end face and a lower end face.

As shown in fig. 12, the present application also discloses other embodiments, the phase lines extend from the first tooth portion 31 to the second tooth portion 32 on the upper end surface of the stator body 1, and then extend from the second tooth portion 32 to the third tooth portion 33 on the upper end surface of the stator body 1; phase lines between the first tooth portion 31 and the second tooth portion 32 extend to the lower end face of the stator body 1 and are disconnected, and an outgoing line 21 on the first tooth portion 31 and an outgoing line 21 on the second tooth portion 32 are respectively formed; the penetrating end of the phase wire forms the outgoing wire 21 on the first toothing 31. U, V, W the three-phase lead-out wire 21 enters the stator slots corresponding to the first stator tooth 341, the second stator tooth 342 and the third stator tooth 343 through the winding mouth and is routed anticlockwise on the first stator tooth 341, the second stator tooth 342 and the third stator tooth 343 respectively, the other end of the wire is threaded into the stator slots corresponding to the fourth stator tooth 344, the fifth stator tooth 345 and the sixth stator tooth 346 through the stator upper end framework 12, the winding mouth performs clockwise winding along the stator slots corresponding to the fourth stator tooth, the fifth stator tooth 345 and the sixth stator tooth 346 through the wire hooking and cutting, and the other end of the wire performs anticlockwise winding through the stator upper end framework 12 to the stator slots corresponding to the seven stator teeth, the eighth stator tooth 348 and the ninth stator tooth 349. The upper end of the stator is provided with 18 wire ends, 9 public ends are directly riveted and conducted through the depainting welding of the later, and the 9 public terminals are inserted into corresponding stator slots in a welding or riveting increasing sleeve mode. The stator is now free of piercing terminals. The winding process and the winding action are different, so that the piercing of the terminal can be cancelled, and the winding action of the scheme determines that only riveting can be adopted.

This application scheme can be through the wire winding mode that changes the stator for the stator is at the wire winding completion back, and the lower extreme skeleton position of stator does not expose outside puncture terminal or the pressure knot piece, makes the compressor not contact with refrigeration oil or refrigerant under static condition, prevents that it from discharging outward and can increase its insulating properties.

The application also discloses some embodiments, and stator winding structure still includes puncture portion 4, punctures portion 4 and punctures the position and electrically connects the section of punctureing of each looks phase line. The wire at the upper end of the stator body 1 is penetrated and conducted pairwise through five pressing sheets or penetrating terminals, and hollow pipes of U-phase sleeved insulating materials formed after leading-out wires 21 of the first stator tooth 341, the fourth stator tooth 344 and the seventh stator tooth 347 at the lower end are twisted are pulled to the upper end of the stator body 1 through the stator teeth; v-phase in which the outgoing line 21 of the second stator tooth 342, the fifth stator tooth 345, and the eighth stator tooth 348 is twisted; the W-phase twisted by the outgoing line 21 of the third stator tooth 343, the sixth stator tooth 346, and the ninth stator tooth 349 is drawn from the corresponding stator slot to the upper end of the stator body 1, respectively, in the same manner.

The present application also discloses embodiments in which the piercing portion 4 comprises a piercing terminal or crimp.

The application also discloses some embodiments, and the phase lines are connected through welding or riveting.

According to an embodiment of the present application, there is provided a stator assembly including a stator winding structure, the stator winding structure being the above-mentioned stator winding structure.

According to an embodiment of the present application, there is provided an electric machine including a stator assembly, the stator assembly being the above-described stator assembly.

According to an embodiment of the present application, there is provided a compressor including a motor, wherein the motor is the above-mentioned motor.

According to an embodiment of the application, an air conditioner is provided, which comprises a compressor, and is characterized in that the compressor is the compressor.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims

1. a stator winding structure, is characterized in that, comprises:

stator body (1);

and a winding set (2), the winding set (2) is wound on the stator body (1); the winding set (2) has a puncturing position, and the puncturing position is located on the stator The upper part of the main body (1).

2 . The stator winding structure according to claim 1 , wherein the lead wire ( 21 ) of the winding group ( 2 ) extends to the upper part of the stator body ( 1 ); and/or, the The outside of the lead wire (21) of the winding group (2) is wrapped with an insulating structure.

3 . The stator winding structure according to claim 1 , wherein the stator body ( 1 ) comprises a tooth portion ( 3 ), the winding group ( 2 ) is a multi-phase winding, and each phase winding is 3. 4 . It includes phase wires, and the phase wires of each phase winding are wound on at least two of the teeth (3) in turn; and/or, a stator slot is formed between two adjacent teeth (3), so The number of the stator slots is set to at least six.

4. The stator winding structure according to claim 3, characterized in that the phase wire comprises an extension section, and the phase wire extends from one of the teeth (3) to the other through the extension section. on the teeth (3); the extension segment includes a piercing segment and a lead-out segment, the piercing segment is located at the upper end of the stator body (1), and the piercing position is located on the piercing segment; The lead-out segments are located at the lower end of the stator body (1), and the lead-out segments are disconnected to form lead-out wires (21) on the teeth (3) where they are located respectively.

5 . The stator winding structure according to claim 3 , wherein the winding group ( 2 ) is a three-phase winding, and the lead wires ( 21 ) of the phase wires of each phase winding are twisted into lead wires. 6 . (21) group, the lead wire (21) group extends to the upper part of the stator body (1).

6. The stator winding structure according to claim 3, characterized in that, the tooth portion (3) comprises a first tooth portion (31), a second tooth portion (31), a second tooth portion (31) arranged along the circumferential direction of the stator body (1) a tooth portion (32) and a third tooth portion (33), the phase lines of the same phase are wound around the first tooth portion (31), the second tooth portion (32) and the third tooth portion (33) in turn; The phase line extends from the first tooth portion (31) to the second tooth portion (32) on the upper end surface of the stator body (1), and then from the lower end surface of the stator body (1) The upper portion extends from the second tooth portion (32) to the third tooth portion (33); the phase line between the second tooth portion (32) and the third tooth portion (33) is disconnected, The lead wire (21) on the second tooth portion (32) and the lead wire (21) on the third tooth portion (33) are respectively formed; the penetrating end of the phase wire forms the first tooth the lead wire (21) on the part (31);

Alternatively, the phase line extends from the first tooth portion (31) to the second tooth portion (32) on the upper end surface of the stator body (1), and then extends from the upper end surface of the stator body (1) to the second tooth portion (32). The upper end surface extends from the second tooth portion (32) to the third tooth portion (33); the phase line between the first tooth portion (31) and the second tooth portion (32) extends to the lower end face of the stator body (1) and disconnected to form the lead wire (21) on the first tooth portion (31) and the lead wire (21) on the second tooth portion (32) respectively ; The penetrating end of the phase wire forms the lead wire (21) on the first tooth portion (31).

7. The stator winding structure according to claim 4, characterized in that, the stator winding structure further comprises a piercing part (4), and the piercing part (4) pierces each The pierced sections of the phase lines are electrically connected.

8. The stator winding structure according to claim 6, wherein the piercing portion (4) comprises a piercing terminal or a crimping piece.

9 . The stator winding structure according to claim 4 , wherein the phase wires of each phase are connected by welding or riveting. 10 .

10. A stator assembly, comprising a stator winding structure, wherein the stator winding structure is the stator winding structure according to any one of claims 1-9.

11 . A motor comprising a stator assembly, wherein the stator assembly is the stator assembly described in claim 10 . 12 .

12. A compressor comprising an electric motor, wherein the electric motor is the electric motor of claim 11.

13. An air conditioner comprising a compressor, wherein the compressor is the compressor of claim 12.