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Motor stator winding, method and motor

A technology for motor stators and windings, applied in the shape/style/structure of winding conductors, electrical components, electromechanical devices, etc., can solve the problems of average half-turn length of windings, high copper consumption, and high demand for copper wires, etc., to reduce The effect of temperature rise, weakening of harmonics and improving efficiency

Inactive Publication Date: 2020-02-21
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the stator windings of some motors adopt the traditional short-pitch double-layer stacked winding arrangement of 48 slots and 4 poles. The average half-turn length of the windings in this arrangement is longer, and the demand for copper wires is high, and the copper consumption is high.

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  • Motor stator winding, method and motor
  • Motor stator winding, method and motor
  • Motor stator winding, method and motor

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Embodiment Construction

[0025] In the embodiment of the present invention, in order to reduce the amount of copper wire and reduce copper consumption, it is considered to save copper at the end of the double-layer stacked winding compared with ordinary short-distance. Specifically, three turns of concentric winding can be used, and the coil arrangement under each pole and each phase Layers are arranged in the way of single layer-double layer-single layer-double layer to achieve the same effect as a span shorter than ordinary short-distance double-layer stacking to achieve copper saving at the end. Furthermore, according to different requirements, the number of turns of concentric windings with different spans can be adjusted appropriately, so as to realize the function of improving power factor or weakening harmonics.

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the following examples are given to further describe the present invention in d...

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Abstract

The embodiment of the invention discloses a motor stator winding and a motor. The number of the stator slots is 48, the number of the poles is 4, and the number of the phases is 3. The motor stator winding is concentrically wound for three circles, and the stator slot coil arrangement layer under each pole and each phase is arranged according to a single-layer-double-layer-single-layer-double-layer mode. According to the invention, copper can be saved at the end part, so that the copper consumption is reduced.

Description

technical field [0001] The invention relates to the field of motors, in particular to a motor stator winding, a method and a motor. Background technique [0002] The efficiency of a three-phase AC asynchronous motor is the ratio of output power to input power, the smaller the input power, the higher the efficiency of the motor. The difference between input power and output power is the total loss of the motor, and the stator copper loss is the highest loss in the total loss of the motor. [0003] At present, the stator windings of some motors adopt the traditional short-pitch double-layer winding arrangement of 48 slots and 4 poles. The average half-turn length of the windings in this arrangement is longer, and the demand for copper wires is high, and the copper consumption is high. Contents of the invention [0004] In view of this, on the one hand, the embodiment of the present invention proposes a motor stator winding and method, and on the other hand, proposes a motor...

Claims

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Application Information

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IPC IPC(8): H02K3/12H02K3/28
CPCH02K3/12H02K3/28H02K2213/03
Inventor 王小娇蔡云丛迪
Owner SIEMENS AG