CN213151731U - Stator punching sheet, motor and compressor - Google Patents
Stator punching sheet, motor and compressor Download PDFInfo
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- CN213151731U CN213151731U CN202021903894.2U CN202021903894U CN213151731U CN 213151731 U CN213151731 U CN 213151731U CN 202021903894 U CN202021903894 U CN 202021903894U CN 213151731 U CN213151731 U CN 213151731U
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- stator
- punching sheet
- slot
- stator punching
- lamination
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Abstract
The utility model provides a stator punching sheet, motor and compressor, wherein the stator punching sheet includes stator yoke portion and a plurality of stator teeth along circumference distribution, adjacent two form the stator slot between the stator tooth, the area of stator slot is SsThe radius of the top circle of the stator slot is RyThe width of the stator teeth is TsThe outer diameter of the stator punching sheet is RoInner diameter of Rz，Ss、Ry、Ts、RoAnd RzSatisfies the following conditions:
wherein Q is1The number of the stator slots. Therefore, the stator punching sheet can be reasonably provided with the stator yoke portion edge, the radial height of the stator punching sheet and the width value of the stator teeth are reasonably set, the area of the stator slot is optimized to a certain extent, the using amount of electrical steel is saved, the cost is reduced, and the using performance of the stator punching sheet is improved.
Description
Technical Field
The utility model relates to the technical field of electric machines, in particular to stator punching, motor and compressor.
Background
When a motor punching sheet of a motor in a compressor is designed, various factors such as the inner/outer diameter size and the groove size of a stator punching sheet, the size, the magnet material and the mark of a rotor punching sheet, the matching and the proportion between the stator punching sheet and the rotor punching sheet and the like need to be comprehensively considered, so that the optimal performance requirement of the motor in the compressor is met.
Wherein, the preparation of stator punching is directly through machine stamping forming with the electrical steel, the radius of the top circle of stator slot is great on traditional stator punching, yoke portion size is less, and the notch width is less, the edge radian that the notch is close to yoke portion is great, the effective area of stator slot is less, and the tooth portion width of stator punching is great, it is lower to lead to the full rate of groove of stator punching, can not make full use of electrical steel, cause the material extravagant, cost increase, can also influence the working property of compressor in addition.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stator punching sheet, motor and compressor to it is reasonable inadequately to solve among the prior art stator punching sheet each part size design, can not make full use of electrical steel, causes the material extravagant, and cost increase influences the working property's of compressor problem. The specific technical scheme is as follows:
in a first aspect, the utility model provides a stator punching sheet, including stator yoke portion and a plurality of stator teeth along circumference distribution, adjacent two form the stator slot between the stator tooth, the area of stator slot is SsThe radius of the top circle of the stator slot is RyThe width of the stator teeth is TsThe outer diameter of the stator punching sheet is RoInner diameter of Rz，Ss、Ry、Ts、RoAnd RzSatisfies the following conditions:
wherein Q is1The number of the stator slots.
Optionally, RoAnd RzSatisfies the following conditions: r is more than or equal to 0.5z/Ro≤0.52。
Optionally, RyAnd RzSatisfies the following conditions: r is more than or equal to 1.45y/Rz≤1.49。
Optionally, Ro、RyAnd RzSatisfies the following conditions: ry-Rz≤Ro-Ry≤1.1×(Ry-Rz)。
Optionally, the stator groove is a trapezoidal groove with four corners being rounded corners.
Optionally, the radius of the two fillets of the stator slot far away from the circle center of the stator punching sheet is equal, and the radius of the two fillets close to the circle center of the stator punching sheet is equal.
Optionally, the radius of the fillet of the stator slot far away from the circle center of the stator punching is larger than the radius of the fillet of the stator slot near the circle center of the stator punching.
Optionally, the radius of the fillet of the stator slot far away from the circle center of the stator punching sheet is Rx，RxSatisfies the following conditions: r is more than or equal to 1mmx≤3mm。
In a second aspect, the present invention provides a motor, including a rotor and a stator formed by laminating stator laminations.
In a third aspect, the present invention provides a compressor comprising the motor according to the second aspect.
The utility model provides a pair of stator punching, motor and compressor has following beneficial effect: the stator punching sheet comprises a stator yoke part and a plurality of stator teeth distributed along the circumferential direction, a stator slot is formed between every two adjacent stator teeth, and the area of the stator slot is SsThe radius of the top circle of the stator slot is RyThe width of the stator teeth is TsThe outer diameter of the stator punching sheet is RoInner diameter of Rz，Ss、Ry、Ts、RoAnd RzSatisfies the following conditions:
wherein Q is1The number of the stator slots. Therefore, the stator punching sheet can be reasonably provided with the stator yoke portion edge, the radial height of the stator punching sheet and the width value of the stator teeth are reasonably set, the area of the stator slot is optimized to a certain extent, the using amount of electrical steel is saved, the cost is reduced, and the using performance of the stator punching sheet is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a partial structure of a stator punching sheet according to an embodiment of the present invention;
the reference numerals of fig. 1 are explained as follows:
1-stator teeth; 2-a stator yoke; 3-stator slot.
Detailed Description
The following describes a stator punching, a motor, and a compressor in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
As described in the background art, in the prior art, due to the fact that the size of each part on the stator punching sheet is designed with flaws, the slot fullness rate of the stator slot 3 is low, electrical steel cannot be fully utilized when the stator punching sheet is manufactured, material waste is caused, and the production cost is increased.
Therefore, the utility model provides a material-saving, cost-saving and better working performanceReferring to fig. 1, the overall stator punching sheet is annular and includes a stator yoke 2 and a plurality of stator teeth 1 distributed along the circumferential direction, a stator slot 3 is formed between two adjacent stator teeth 1, and the area of the stator slot 3 is SsThe radius of the top circle of the stator slot 3 is RyThe width of the stator tooth 1 is TsThe outer diameter of the stator punching sheet is RoInner diameter of Rz，Ss、Ry、Ts、RoAnd RzSatisfies the following conditions:
wherein Q is1The number of the stator slots 3.
The height of the stator yoke part 2 along the radial direction of the stator punching sheet is Ro-RyThe height of the stator slot 3 along the radial direction of the stator punching sheet is Ry-Rz。
Further, the outer diameter R of the stator punching sheetoAnd its inner diameter is RzSatisfies the following conditions: r is more than or equal to 0.5z/RoLess than or equal to 0.52, and the radius R of the top circle of the stator slot 3yAnd the inner diameter R of the stator punching sheetzSatisfies the following conditions: r is more than or equal to 1.45y/RzLess than or equal to 1.49, and the external diameter R of the stator punching sheetoRadius R of the tip circle of the stator slot 3yAnd the inner diameter R of the stator punching sheetzSatisfies the following conditions: ry-Rz≤Ro-Ry≤1.1×(Ry-Rz) In addition, the height of the stator yoke part 2 is increased and adjusted, the magnetic density can be reduced, and the iron core loss is improved.
Furthermore, the stator slot 3 is a trapezoidal slot with four corners being fillets, so that the four corners of the trapezoidal slot are fillets, and accordingly, when a subsequent stator winding is wound on the stator tooth 1, a wire harness can be uniformly wound on the stator tooth 1, especially at the joint of the stator tooth 1 and the stator yoke portion 2 (the stator slot 3 is far away from the two fillets at the circle center of the stator punching sheet) and at the free end of the stator tooth 1 (the stator slot 3 is close to the two fillets at the circle center of the stator punching sheet).
Furthermore, the radius of two fillets of the stator slot 3, which are far away from the circle center of the stator punching sheet, is equal, and the radius of two fillets, which are close to the circle center of the stator punching sheet, is equal, so that the slot fullness rate of the stator punching sheet is improved.
Further, the radius of the fillet of the stator slot 3 far away from the circle center of the stator punching sheet is larger than the radius of the fillet of the stator slot 3 near the circle center of the stator punching sheet.
Further, the radius of a fillet of the stator slot 3 away from the circle center of the stator punching sheet is RxThen R isxSatisfies the following conditions: r is more than or equal to 1mmx≤3mm。
The shape of the stator slot 3 is designed in a targeted manner, on the basis of not changing the approximately trapezoidal basic outline, the fillet of the corner is designed in an optimized manner, so that the stator slot 3 tends to be flattened, and the area S of the stator slot can be effectively increasedsThe performance is improved, and the consumption of electrical steel is saved.
Under the same condition of other conditions, compared with the traditional stator punching sheet, the stator punching sheet provided by the embodiment has the following main parameter comparison:
the inventor finds that the stator punching sheet manufactured according to the main parameters of the stator punching sheet provided by the embodiment in the table can save the electrical steel consumption by 3.2% compared with the conventional stator punching sheet manufactured, and the performance of the stator punching sheet can be improved by 1.2% compared with the conventional stator punching sheet. In addition, if the stator punching sheet is the same as the electrical steel of the traditional stator punching sheet in use amount, the performance of the stator punching sheet provided by the embodiment can be relatively improved by 5%.
It can be seen that the stator punching sheet provided by the embodiment reduces the width T of the stator teethsIncreasing and adjusting the area S of the stator slotsTherefore, the electrical steel is fully utilized, materials are saved, the cost is reduced, the wire diameter and the number of turns of the motor coil can be more fully adjusted, and the adjusting space of the output and the performance of the stator punching sheet is further improved. Although the width of the stator teeth is adjusted to be reduced, the magnetic density of the stator teeth is increased, and the iron loss is increased, the magnetic density of the stator yoke part at the position can be reduced by increasing the height of the stator yoke part corresponding to the stator teeth, so that the iron loss of the stator yoke part at the position is reduced, and the reduction amplitude is larger than the increase amplitude of the stator teeth, therefore, the comprehensive iron core loss of the stator punching sheet is reduced, and the performance of the stator punching sheet is improved.
Based on the same inventive concept, the embodiment further provides a motor, and the motor comprises a stator formed by overlapping the stator punching sheets and a rotor which is rotatably embedded in the inner periphery of the stator.
Based on the same inventive concept, the present embodiment also provides a compressor including the motor as described above.
To sum up, the utility model provides a pair of stator punching, motor and compressor has following advantage: the stator punching sheet comprises a stator yoke part and a plurality of stator teeth distributed along the circumferential direction, a stator slot is formed between every two adjacent stator teeth, and the area of the stator slot is SsThe radius of the top circle of the stator slot is RyThe width of the stator teeth is TsThe outer diameter of the stator punching sheet is RoInner diameter of Rz，Ss、Ry、Ts、RoAnd RzSatisfies the following conditions:
wherein Q is1The number of the stator slots. Therefore, the radial height of the stator punching sheet and the width of the stator teeth can be reasonably set by reasonably setting the stator yoke partThe stator punching sheet has the advantages that the area of the stator slot is optimized to a certain extent, the consumption of electrical steel is saved, the cost is reduced, and the service performance of the stator punching sheet is improved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A stator punching sheet is characterized by comprising a stator yoke part and a plurality of stator teeth distributed along the circumferential direction, wherein a stator slot is formed between every two adjacent stator teeth;
the area of the stator slot is SsThe radius of the top circle of the stator slot is RyThe width of the stator teeth is TsThe outer diameter of the stator punching sheet is RoInner diameter of Rz，Ss、Ry、Ts、RoAnd RzSatisfies the following conditions:
wherein Q is1The number of the stator slots.
2. The stator lamination as recited in claim 1, wherein R isoAnd RzSatisfies the following conditions: r is more than or equal to 0.5z/Ro≤0.52。
3. The stator lamination as recited in claim 1, wherein R isyAnd RzSatisfies the following conditions: r is more than or equal to 1.45y/Rz≤1.49。
4. The stator lamination as recited in claim 1, wherein R iso、RyAnd RzSatisfies the following conditions:Ry-Rz≤Ro-Ry≤1.1×(Ry-Rz)。
5. the stator lamination as recited in claim 1, wherein the stator slot is a trapezoidal slot with four corners rounded.
6. The stator lamination as recited in claim 5, wherein the two fillets of the stator slot away from the center of the stator lamination have equal radii and the two fillets near the center of the stator lamination have equal radii.
7. The stator lamination as recited in claim 6, wherein a radius of the fillet of the stator slot away from the center of the stator lamination is greater than a radius of the fillet of the stator slot close to the center of the stator lamination.
8. The stator lamination as recited in claim 6, wherein a radius of a fillet of the stator slot away from a center of the stator lamination is Rx，RxSatisfies the following conditions: r is more than or equal to 1mmx≤3mm。
9. An electric machine comprising a rotor and a stator laminated with the stator lamination of any one of claims 1 to 8.
10. A compressor, characterized by comprising an electric machine according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021903894.2U CN213151731U (en) | 2020-09-03 | 2020-09-03 | Stator punching sheet, motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021903894.2U CN213151731U (en) | 2020-09-03 | 2020-09-03 | Stator punching sheet, motor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213151731U true CN213151731U (en) | 2021-05-07 |
Family
ID=75709782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021903894.2U Active CN213151731U (en) | 2020-09-03 | 2020-09-03 | Stator punching sheet, motor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213151731U (en) |
-
2020
- 2020-09-03 CN CN202021903894.2U patent/CN213151731U/en active Active
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