CN215817709U - Stator winding structure, motor, compressor and air conditioner - Google Patents
Stator winding structure, motor, compressor and air conditioner Download PDFInfo
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- CN215817709U CN215817709U CN202121718653.5U CN202121718653U CN215817709U CN 215817709 U CN215817709 U CN 215817709U CN 202121718653 U CN202121718653 U CN 202121718653U CN 215817709 U CN215817709 U CN 215817709U
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Abstract
The application provides a stator winding structure, a motor, a compressor and an air conditioner, which comprises a stator body and a winding group, wherein the stator body is provided with a lead end and a non-lead end; the winding group is wound on the stator body and comprises a connecting wire, and the connecting wire is used for electric connection; the connecting wire extends from the non-lead terminal to the lead terminal such that the electrical connection location is at the lead terminal. According to the stator winding structure, the motor, the compressor and the air conditioner, leakage current can be reduced, and the reliability of the motor is improved.
Description
Technical Field
The application belongs to the technical field of air conditioners, and particularly relates to a stator winding structure, a motor, a compressor and an air conditioner.
Background
At present, permanent magnet synchronous motors are widely used, the connection mode comprises a star connection mode and a triangular connection mode, the star connection mode is most widely applied, and in order to meet design requirements, parallel connection wires are sometimes adopted, and series connection wires are sometimes adopted.
However, when the parallel connection wire is adopted, a plurality of puncture terminals are arranged at the non-lead end of the motor to be connected with star points, and the puncture terminals are very close to the oil surface of the compressor, so that the risk of leakage current is generated, and the potential safety hazard of the compressor is increased.
Therefore, how to provide a stator winding structure, a motor, a compressor and an air conditioner which can reduce leakage current and increase motor reliability becomes a problem to be solved by those skilled in the art urgently.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the present application is to provide a stator winding structure, a motor, a compressor and an air conditioner, which can reduce leakage current and increase motor reliability.
In order to solve the above problems, the present application provides a stator winding structure including:
a stator body having a lead end and a non-lead end;
the winding group is wound on the stator body and comprises a connecting wire which is used for electric connection; the connecting wire extends from the non-lead terminal to the lead terminal such that the electrical connection location is at the lead terminal.
Furthermore, the winding groups are multi-phase winding groups, and each phase winding group comprises a phase line; the stator body comprises a tooth part group; the phase line of each phase winding group is sequentially wound on at least two tooth groups; and/or each tooth group comprises at least one stator tooth.
Furthermore, the winding groups of the phases are connected in parallel, and in the winding groups of the same phase, the winding directions of the phase lines on two adjacent tooth groups are opposite.
Further, when each tooth group includes at least one stator tooth, a stator slot is formed between adjacent two stator teeth, and the number of the stator slots is set to be at least six.
Furthermore, the phase line of each phase of winding group comprises an extension section, and the phase line of each phase of winding group extends from one tooth group to the other tooth group through the extension section; the extension section comprises a bridge section and a wire hanging section which are sequentially connected, the bridge section is located at a non-lead end, and the wire hanging section extends from the non-lead end to the lead end to form a connecting wire.
Furthermore, the wire hanging section is hung at the lead end.
Further, the tooth group includes a first tooth group and a second tooth group arranged circumferentially along the stator body; the phase lines in the same phase are sequentially wound on the first tooth part group and the second tooth part group; the same-phase line extends from the first tooth part group to the second tooth part group through a bridge section and a wire hanging section, the bridge section is located at the non-lead end, and the wire hanging section extends from the non-lead end to the lead end to form a connecting wire;
or the tooth part group also comprises a third tooth part group, and the phase lines with the same phase are sequentially wound on the first tooth part group, the second tooth part group and the third tooth part group; the bridge passing section comprises a first bridge passing section and a second bridge passing section; the wire hanging section comprises a first wire hanging section and a second wire hanging section; the phase line extends from the first tooth part group to the second tooth part group through a first bridge section and a first line hanging section, the first bridge section is located at the non-lead end, and the first line hanging section extends from the non-lead end to the lead end to form a connecting line; the second tooth part group extends to the third tooth part group through the second bridge section and the second wire hanging section; the second hanging wire section extends from the non-lead end to the lead end to form a connecting wire.
According to still another aspect of the present application, there is provided an electric machine including the electric machine described above.
According to still another aspect of the present application, there is provided a compressor including a motor, the motor being the above-mentioned motor.
According to still another aspect of the present application, there is provided an air conditioner including a compressor, the compressor being the above-mentioned compressor.
The application provides a stator winding structure, motor, compressor and air conditioner can reduce leakage current, increases the motor reliability.
Drawings
Fig. 1 is a schematic view of a winding structure on a stator body having nine stator teeth according to an embodiment of the present application;
FIG. 2 is a schematic view of a winding structure on a stator body having six stator teeth according to an embodiment of the present application;
FIG. 3 is a winding flow chart illustrating a series connection of winding groups according to an embodiment of the present disclosure;
fig. 4 is a winding flow chart of a winding group parallel connection mode according to an embodiment of the present application.
The reference numerals are represented as:
1. a set of teeth; 11. a first stator tooth; 12. a second stator tooth; 13. a third stator tooth; 14. a fourth stator tooth; 15. a fifth stator tooth; 16. a sixth stator tooth; 17. a seventh stator tooth; 18. an eighth stator tooth; 19. a ninth stator tooth; 2. winding; 21. an outgoing line; 22. and (5) hanging the line segments.
Detailed Description
Referring to fig. 1-4 in combination, a stator winding structure comprises a stator body and a winding group 2, wherein the stator body is provided with a lead end and a non-lead end; the winding group 2 is wound on the stator body, and the winding group 2 comprises a connecting wire which is used for electric connection; the connecting wire extends from the non-lead terminal to the lead terminal such that the electrical connection location is at the lead terminal. The lead-out wire 21 is also located the lead wire end, and all terminal connections are located the lead wire end like this, can guarantee not to have the end at the non-lead wire end of motor like this, need not to beat and pierce the terminal to reduce leakage current, realize that lead-out wire 21 (public end) end is automatic to be collected, reduce the process, reduce materials, increase the reliability of motor. The leading-out wire 21 and the connecting wire are all at the lead wire end, do not have the end of a thread at the non-lead wire end of motor, need not to beat and pierce the terminal, can reduce leakage current, increase motor reliability. Therefore, the same set of tool measuring instrument can be adopted during serial connection and parallel connection, the wire is sequentially inserted and wired during serial connection and wiring, and the processes of wire hanging and winding direction changing are added during parallel connection, so that the wiring of the non-lead end is realized during parallel winding of the motor, the non-lead end is not cut, no wire end is formed, and the puncture terminal is not required to be punched.
The application also discloses some embodiments, the winding group 2 is a multi-phase winding group 2, and each phase winding group 2 comprises a phase line; the stator body comprises a tooth part group 1; the phase line of each phase winding group 2 is sequentially wound on at least two tooth groups 1; namely, the U-phase line, the V-phase line and the W-phase line, are respectively wound on the corresponding at least two tooth groups 1 in sequence.
The present application also discloses embodiments, each tooth group 1 comprising at least one stator tooth. That is, the number of slots for winding simultaneously may be 1 slot, or 2 slots for winding together, or 3 slots for winding simultaneously, but as long as the number of slots is determined, it is required to ensure that the same number of slots is adopted for the whole motor, for example: a12-slot motor is manufactured, two winding nozzles are arranged, namely 2 slots are wound simultaneously, and the winding sequence is that 1 slot and 2 slots are wound firstly, and then 3 slots, 4 slots, 5 slots and 6 slots are wound. The same-phase line is firstly wound on one stator tooth at the same time, then wound on the other stator tooth, and wound on one stator tooth each time in sequence; the following steps can be also included: the same-phase lines are wound on two stator teeth at the same time, then wound on the other two stator teeth, and wound on the two stator teeth in sequence each time; the method can also comprise the following steps: the same-phase line is wound on three stator teeth at the same time, then wound on the other three stator teeth, wound on the three stator teeth each time, sequentially wound and the like.
The application also discloses some embodiments, each phase winding group 2 is connected in parallel, and in the same phase winding group 2, the winding directions of the phase lines on two adjacent tooth groups 1 are opposite. The method adopts a clockwise and anticlockwise alternate winding mode when the windings are wound in parallel, the windings can be wound clockwise or anticlockwise firstly, no specific limitation is made, but the winding directions need to be applied alternately; the winding structure avoids the operation of cutting the wire at the non-lead end, adopts the operation sequence of anticlockwise winding, wire hanging, clockwise winding, wire hanging and anticlockwise winding, realizes the operation of not cutting the wire at the non-lead end,
the application also discloses embodiments, when each tooth group 1 comprises at least one stator tooth, stator slots are formed between two adjacent stator teeth, and the number of the stator slots is set to be at least six. The winding structure and the winding method can be applied to stator schemes with different slot numbers of the concentrated winding motor; for example, 6 slots, 9 slots, 12 slots, 18 slots, etc., are applicable as long as the concentrated winding type motor is used.
The application also discloses some embodiments, the phase line of each phase winding group 2 comprises an extension section, and the phase line of each phase winding group 2 extends from one tooth group 1 to another tooth group 1 through the extension section; the extension section comprises a bridge section and a wire hanging section 22 which are connected in sequence, the bridge section is located at a non-lead end, the wire hanging section 22 extends from the non-lead end to a lead end to form a connecting wire, namely the wire hanging section 22 extends from the bridge section to the lead end along the stator slot, and the part located at the lead end forms the connecting wire.
The application also discloses some embodiments, and the wire hanging section 22 is hung at the lead end. Can set up the hanging wire structure at the lead wire end, can hang on the hanging wire structure when stretching into the lead wire end with the lead wire section, the later stage wiring of being convenient for.
The application also discloses some embodiments, the tooth group 1 comprises a first tooth group and a second tooth group arranged along the circumferential direction of the stator body; the phase lines in the same phase are sequentially wound on the first tooth part group and the second tooth part group; the same-phase line extends from the first tooth part group to the second tooth part group through a bridge section and a wire hanging section 22, the bridge section is located at a non-lead end, and the wire hanging section 22 extends from the non-lead end to the lead end to form a connecting wire; namely, the stator body comprises six groups of tooth parts 1, each tooth part 1 only has one stator tooth, the phase lines of the same phase are sequentially wound on the first tooth part group and the second tooth part group, the phase lines of the U phase are sequentially wound on the first stator tooth 11 and the fourth stator tooth 14, and the string hanging segments 22 respectively penetrate through the stator slots and extend to the lead ends on one side of the fourth stator tooth 14 to form connecting lines; the V-phase line is sequentially wound on the second stator tooth 12 and the fifth stator tooth 15, and the wire hanging segments 22 respectively penetrate through the stator slots and extend to the lead ends on one side of the fifth stator tooth 15 to form connecting wires; and the W phase line is sequentially wound on the third stator tooth 13 and the sixth stator tooth 16, and the wire hanging segments 22 respectively penetrate through the stator slots and extend to the lead ends on one side of the sixth stator tooth 16 to form connecting wires.
The application also discloses some embodiments, the tooth part group 1 further comprises a third tooth part group, and the phase lines with the same phase are sequentially wound on the first tooth part group, the second tooth part group and the third tooth part group; the bridge passing section comprises a first bridge passing section and a second bridge passing section; the hanging line segments 22 include a first hanging line segment and a second hanging line segment; the phase line extends from the first tooth part group to the second tooth part group through a first bridge section and a first line hanging section, the first bridge section is located at the non-lead end, and the first line hanging section extends from the non-lead end to the lead end to form a connecting line; the second tooth part group extends to the third tooth part group through the second bridge section and the second wire hanging section; the second hanging wire section extends from the non-lead end to the lead end to form a connecting wire. I.e. the stator body comprises nine sets of teeth 1, each set having only one stator tooth. The same-phase lines are sequentially wound on the first tooth part group, the second tooth part group and the third tooth part group, the U-phase lines are sequentially wound on the first stator tooth 11, the fourth stator tooth 14 and the seventh stator tooth 17, and the two string segments 22 respectively penetrate through the stator slots and extend to the lead terminals on one sides of the fourth stator tooth 14 and the seventh stator tooth 17 to form two connecting lines; the V-phase line is sequentially wound on the second stator tooth 12, the fifth stator tooth 15 and the eighth stator tooth 18, and two wire hanging segments 22 respectively penetrate through the stator slots and extend to the lead ends on one sides of the fifth stator tooth 15 and the eighth stator tooth 18 to form two connecting wires; and the W phase line is sequentially wound on the third stator tooth 13, the sixth stator tooth 16 and the ninth stator tooth 19, and two wire hanging segments 22 respectively penetrate through the stator slots and extend to the lead ends on one sides of the sixth stator tooth 16 and the ninth stator tooth 19 to form two connecting wires. When the stator body comprises twelve stator tooth groups, and each tooth group only has one stator tooth, the same winding can be adopted
According to an embodiment of the present application, there is provided a motor including a stator winding structure, where the stator winding structure is the above-mentioned stator winding structure.
According to an embodiment of the application, a compressor is provided, which comprises a motor, wherein the motor is the motor.
According to an embodiment of the application, an air conditioner is provided, which comprises a compressor, wherein the compressor is the compressor.
According to an embodiment of the present application, there is provided a winding method of the above stator winding structure, including the following steps:
winding the winding group 2 on the stator body;
the connecting wires of the winding set 2 are stretched from the non-lead end to the lead end.
The winding method avoids the terminal from being punctured at the non-lead end, reduces the leakage current, increases the reliability of the motor, realizes the automatic collection of the lead end wire heads, reduces the operation procedures, improves the manufacturability of the motor, reduces the material consumption of the motor and reduces the material cost of the motor.
Permanent magnet synchronous motor among the prior art all adopts concentrated winding's the mode of rolling off the production line, can reduce motor cost, to different application environment, the wiring can divide into star connection and triangle-shaped connection, use star connection to use the most extensively, star connection can divide into series connection and parallel connection again, conventional motor wire winding mode, series connection and parallel connection need adopt different wire winding modes, just can satisfy the processing demand, need put into a large amount of frock appearance and examine utensil like this, a lot of cost input has been increased like this, and current parallel connection can increase a lot of puncture terminals at the motor non-lead terminal, can cause the potential safety hazard of motor. The wiring mode of this application motor, this kind of wire winding mode can adopt same equipment to increase a small amount of processes, just can realize that the motor is established ties or the parallel connection line, need not to increase extra frock appearance, can realize that same equipment is established ties parallelly connected general.
The application also discloses some embodiments, when the winding group 2 is a multi-phase winding group 2, each phase winding group 2 comprises a phase line; every phase line of winding group 2 all includes the extension, and when the extension included the gap bridge section and the string line section 22 that connect gradually, it still includes following step to stretch to the lead terminal from non-lead terminal with the connecting wire of winding group 2: the string segments 22 are stretched to the lead ends to form connecting strings. And the wire hanging section 22 is hung on the wire hanging structure, and then the next winding is performed.
The application also discloses some embodiments, when the stator body includes tooth group 1, still include following step with winding group 2 around locating on the stator body: phase lines in the same phase are sequentially wound on at least two tooth groups 1, and in the winding groups 2 in the same phase, the winding directions of the phase lines on two adjacent tooth groups 1 are opposite.
The application also discloses some embodiments, when the winding group 2 is a multi-phase winding group 2, each phase winding group 2 comprises a phase line; the phase line of each phase winding group 2 comprises an extension section, the extension section comprises a bridge section and a wire hanging section 22 which are sequentially connected, and the stator body comprises a tooth part group 1; when the tooth group 1 includes the first tooth group and the second tooth group arranged along the circumferential direction of the stator body, the winding group 2 is wound on the stator body, and the method further includes the following steps:
the same-phase line is wound on the first tooth part group anticlockwise;
the bridge passing section and the wire hanging section 22 of the same-phase line are stretched to the position of the second tooth group through the non-lead end;
stretching the string segment 22 from the non-lead end to the lead end to form a connecting string;
clockwise winding the same-phase line on the second tooth group; by adopting the winding method, only clockwise and anticlockwise alternate winding is adopted, the procedures of wire hanging and concentrated wire cutting are added, the non-lead end is ensured not to be provided with a terminal, and a non-lead end wire passing mode is adopted; applications to both 6 slot and 12 slot machines may be used.
The application also discloses some embodiments, when the tooth group 1 comprises a first tooth group, a second tooth group and a third tooth group which are arranged along the circumferential direction of the stator body, the bridge section comprises a first bridge section and a second bridge section; when the hanging wire segment 22 includes a first hanging wire segment and a second hanging wire segment, the winding set 2 is wound on the stator body, and the method further includes the following steps:
the same-phase line is wound on the first tooth part group anticlockwise;
the first bridge section and the first wire hanging section of the same-phase line are stretched to the position of the second tooth part group through the non-lead end;
stretching the first hanging wire section from the non-lead end to the lead end to form a connecting wire;
clockwise winding the same-phase line on the second tooth group;
stretching a second bridge section and a second wire hanging section of the same-phase line to the position of the third tooth part group through the non-lead end;
stretching the second hanging wire section from the non-lead end to the lead end to form a connecting wire;
and then the phase line is wound on the third tooth part group anticlockwise.
Taking the existing 9-slot motor as an example, the stator body comprises nine stator tooth groups, and each tooth group has only one stator tooth. When the motors are connected in series and wired, the first stator tooth 11/the second stator tooth 12/the third stator tooth 13 are wound anticlockwise in a winding mode, the motors rotate to pass through the wire, the fourth stator tooth 14/the fifth stator tooth 15/the sixth stator tooth 16 are wound anticlockwise, the motors rotate to pass through the wire, and the seventh stator tooth 17/the eighth stator tooth 18/the ninth stator tooth 19 are wound anticlockwise.
When parallel connection is adopted, the winding mode is that the first stator tooth 11/the second stator tooth 12/the third stator tooth 13 winds anticlockwise, the wire is hung at the leading end, the motor non-leading end rotates to pass the wire, the fourth stator tooth 14/the fifth stator tooth 15/the sixth stator tooth 16 winds clockwise, the wire is hung at the leading end, the motor non-leading end rotates to pass the wire, the seventh stator tooth 17/the eighth stator tooth 18/the ninth stator tooth 19 winds anticlockwise, the wire is cut and connected, thus, in the process of manufacturing the stator, the mode of winding in the same direction and passing the wire at the non-lead end is adopted when in series connection and wiring, when the wires are connected in parallel, clockwise and anticlockwise alternate winding is adopted, the operations of wire hanging and concentrated wire cutting are increased, the same set of winding tool and measuring instrument can be adopted for series connection and parallel connection, and the condition that the motor is not connected at the non-lead end is ensured. The lead end wire hanging means that the wire hanging segments 22 of the non-lead ends respectively pass through the stator slots to be stretched to the lead ends and then are hung on the wire hanging structure.
By adopting the winding mode, the lead and the star point are both arranged at the lead end. This application wiring is all in the terminal connection of lead wire, and the lead wire will leave certain length, and different length is different as required, follows 80 ~ 120mm and varies. When the stator body comprises twelve stator tooth groups, and each tooth group only has one stator tooth, the same winding method can be adopted for winding.
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 (10)
1. A stator winding structure, comprising:
a stator body having a lead end and a non-lead end;
the winding group (2) is wound on the stator body, the winding group (2) comprises a connecting wire, and the connecting wire is used for electric connection; the connecting wire extends from the non-lead terminal to the lead terminal such that the electrical connection location is at the lead terminal.
2. A stator winding structure according to claim 1, wherein the winding groups (2) are multi-phase winding groups (2), each phase of the winding groups (2) comprising phase lines; the stator body comprises a set of teeth (1); phase lines of each phase winding group (2) are sequentially wound on at least two tooth parts (1); and/or each tooth group (1) comprises at least one stator tooth.
3. A stator winding structure according to claim 2, wherein the winding groups (2) of the respective phases are connected in parallel, and in the winding groups (2) of the same phase, the winding directions of the phase lines of two adjacent tooth groups (1) are opposite.
4. A stator winding structure according to claim 2, wherein when each of the tooth groups (1) includes at least one stator tooth, a stator slot is formed between adjacent two of the stator teeth, and the number of the stator slots is set to at least six.
5. A stator winding structure according to claim 2, wherein the phase wires of each phase winding group (2) comprise an extension through which the phase wires of each phase winding group (2) extend from one of the tooth groups (1) to the other tooth group (1); the extension section comprises a bridge section and a wire hanging section (22) which are connected in sequence, the bridge section is located at the non-lead end, and the wire hanging section (22) extends from the non-lead end to the lead end to form the connecting wire.
6. The stator winding structure according to claim 5, wherein the hanging wire segment (22) is hung on the lead terminal.
7. A stator winding structure according to claim 5, wherein the tooth group (1) includes a first tooth group and a second tooth group arranged along a circumferential direction of the stator body; the same-phase lines are sequentially wound on the first tooth part group and the second tooth part group; the phase line of the same phase extends from the first tooth part group to the second tooth part group through the bridge section and the hanging line section (22), the bridge section is located at the non-lead end, and the hanging line section (22) extends from the non-lead end to the lead end to form the connecting line;
or the tooth part group (1) further comprises a third tooth part group, and phase lines in the same phase are sequentially wound on the first tooth part group, the second tooth part group and the third tooth part group; the bridge section comprises a first bridge section and a second bridge section; the hanging line segments (22) comprise a first hanging line segment and a second hanging line segment; the phase line extends from the first tooth part group to the second tooth part group through the first bridge section and the first hanging line section, the first bridge section is located at the non-lead end, and the first hanging line section extends from the non-lead end to the lead end to form the connecting line; the second tooth part group extends to the third tooth part group through the second bridge section and the second wire hanging section; the second hanging wire section extends from the non-lead end to the lead end to form the connecting wire.
8. An electrical machine comprising a stator winding structure, wherein the stator winding structure is as claimed in any one of claims 1 to 7.
9. A compressor comprising an electric motor, wherein said electric motor is as claimed in claim 8.
10. An air conditioner comprising a compressor, wherein said compressor is the compressor of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121718653.5U CN215817709U (en) | 2021-07-27 | 2021-07-27 | Stator winding structure, motor, compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121718653.5U CN215817709U (en) | 2021-07-27 | 2021-07-27 | Stator winding structure, motor, compressor and air conditioner |
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| Publication Number | Publication Date |
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| CN215817709U true CN215817709U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121718653.5U Active CN215817709U (en) | 2021-07-27 | 2021-07-27 | Stator winding structure, motor, compressor and air conditioner |
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| Country | Link |
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| CN (1) | CN215817709U (en) |
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- 2021-07-27 CN CN202121718653.5U patent/CN215817709U/en active Active
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