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Stator assembly and motor equipped with same, compressor, and refrigeration equipment

A component and stator technology, applied in the field of compressors, can solve the problems of small magnetic flux harmonics, multi-slot area of ​​the main winding, large magnetic flux harmonics, etc., to reduce stray loss, balance heat loss, and magnetic flux harmonics Reduced effect

Active Publication Date: 2016-12-07
GUANGDONG MEIZHI COMPRESSOR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The number of poles of the motor in the related art is 2 poles. In order to obtain better starting and running performance of the motor, the main winding and the auxiliary winding of each pole usually adopt a multi-layer concentric winding method, showing that the main winding is strong and the auxiliary winding is weak. "The design idea, on the one hand, the number of winding layers of one pole of the main winding is greater than the number of winding layers of one pole of the auxiliary winding, so that the magnetic flux harmonics generated on the main winding are small, and the magnetic flux harmonics generated on the auxiliary winding are large. As a result, the flux harmonics on the secondary windings produce higher stray losses; on the other hand, since the main windings occupy more slot area, the heat loss on the main / secondary windings is unbalanced, which seriously affects the performance of the motor

Method used

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  • Stator assembly and motor equipped with same, compressor, and refrigeration equipment
  • Stator assembly and motor equipped with same, compressor, and refrigeration equipment
  • Stator assembly and motor equipped with same, compressor, and refrigeration equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0054] Such as figure 1 As shown, in this embodiment, the stator assembly 100 includes a stator iron and a stator winding 20 . Specifically, the stator core 10 has 20 stator teeth 12 arranged at intervals along its circumference, and stator slots are defined between adjacent two stator teeth 12 (such as figure 1 S1-S20 shown), the stator winding 20 includes a main winding 21 and an auxiliary winding 22, a plurality of coils of the main winding 21 and the auxiliary winding 22 are respectively wound in the stator slot in a concentric winding manner, and the main winding 21 and the auxiliary winding The winding 22 is distributed orthogonally on the stator core 10. In the same pole of the main winding 21, the number of stator slots occupied by the effective side of each coil is km, and the effective side of each coil is in The sum of the cross-sectional areas of the windings in the stator slots is Sm, and in the same pole of the secondary winding 22, the number of stator slots oc...

Embodiment 2

[0058] Such as figure 2 As shown, in this embodiment, the number of stator slots of the stator assembly 100 is 20, km is 5, and ka is 4. In the same pole of the main winding 21, the number km of stator slots occupied by the effective side of each coil is 5, and in the same pole of the secondary winding 22, the number of stator slots occupied by the effective side of each coil is The number ka of slots is 4, and the stator winding 20 of the stator assembly 100 is distributed in "5 / 4", that is, the number of layers km of one pole of the main winding 21 is 5 layers, and the number of layers ka of one pole of the auxiliary winding 22 is 4th floor.

[0059] By changing the "4 / 3" distribution of the stator windings in the related art to the "5 / 4" distribution of the stator windings 20, at the same time controlling the winding of the same side effective side of each coil of the main winding 21 in the stator slot The ratio of the sum Sm of wire cross-sectional areas to the winding ...

Embodiment 3

[0061] Such as image 3 As shown, in this embodiment, the number of stator slots of the stator winding 20 is 20, and km=ka=5. In the same pole of the main winding 21, the number km of stator slots occupied by the effective side of each coil is 5, and in the same pole of the secondary winding 22, the number of stator slots occupied by the effective side of each coil is The number ka of slots is 5, and the stator winding 20 of the stator assembly 100 is distributed in "5 / 5", that is, the number of layers km of one pole of the main winding 21 is 5 layers, and the number of layers ka of one pole of the auxiliary winding 22 is 5 layers, by changing the “4 / 3” distribution of the stator windings in the related art to the “5 / 5” distribution of the stator windings 20, and at the same time controlling the effective side of each coil of the main winding 21 in the stator slot The ratio of the sum of the winding cross-sectional areas Sm and the winding cross-sectional area Sa of the same-...

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Abstract

The invention discloses a stator assembly and a motor equipped with same, a compressor, and refrigeration equipment. The stator assembly comprises a stator iron core, and a stator winding, wherein the stator iron core is equipped with multiple stator grooves; the number of the stator grooves is Q which is multiple of 4; the stator winding comprises a main winding and a secondary winding; in the same pole of the main winding, the number of the stator grooves in the same-side effective edge of each coil is km; the sum of the wire-winding sectional areas of the same-side effective edge of each coil is Sm; in the same pole of the secondary winding, the number of the stator grooves in the same-side effective edge of each coil is ka; the sum of the wire-winding sectional areas of the same-side effective edge of each coil is Sa; and ka is greater than or equal to (Q-4) / 4 and less than or equal to km that is less than or equal to Q / 4, wherein Sm / Sa is greater than or equal to 1.05 and less than or equal to 1.50. According to the stator assemble provided by the embodiment of the invention, the magnetic flux harmonic of the winding can be lowered, the stray loss of the motor can be lowered, the area proportion of the secondary winding in the stator grooves can be increased, the heat dissipation loss of the main winding and the secondary winding is balanced, and the performance of the motor is improved.

Description

technical field [0001] The present invention relates to the technical field of compressors, and more specifically, to a stator assembly, a motor, a compressor and refrigeration equipment having the stator assembly. Background technique [0002] The number of poles of the motor in the related art is 2 poles. In order to obtain better starting and running performance of the motor, the main winding and the auxiliary winding of each pole usually adopt a multi-layer concentric winding method, showing that the main winding is strong and the auxiliary winding is weak. "The design idea, on the one hand, the number of winding layers of one pole of the main winding is greater than the number of winding layers of one pole of the auxiliary winding, so that the magnetic flux harmonics generated on the main winding are small, and the magnetic flux harmonics generated on the auxiliary winding are large. As a result, the flux harmonics on the secondary windings produce higher stray losses; ...

Claims

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Application Information

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IPC IPC(8): H02K1/16H02K3/12H02K3/04
CPCH02K1/16H02K3/04H02K3/12H02K2213/03
Inventor 张尊睦孙国伟于明湖
Owner GUANGDONG MEIZHI COMPRESSOR
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