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Stator and motor with double winding

A double-winding and winding technology, applied in the shape/style/structure of winding insulation, the shape/style/structure of winding conductors, asynchronous induction motors, etc., can solve the problem of increased stator slot leakage reactance, high notch, and large value and other issues, to achieve the effect of increasing power density level, reducing manufacturing cost and improving quality

Active Publication Date: 2021-09-03
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, in order to ensure sufficient electrical reliability of high-voltage motors, the main insulation of the formed windings is relatively thick, and the two sets of windings in each stator slot and the four-layer coils must have reliable interlayer insulation, resulting in one set of The notch of the winding is higher and deeper
like figure 2 As shown, the notch height h of the first winding 11 1 The larger the value, the stator slot leakage reactance of the first winding 11 will also become larger, which will greatly reduce the starting performance and overload capacity of the motor when the first winding 11 is working

Method used

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  • Stator and motor with double winding
  • Stator and motor with double winding
  • Stator and motor with double winding

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Embodiment Construction

[0054] 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 detail.

[0055] image 3 It is a three-dimensional schematic diagram of a rotor and a stator of a motor according to an embodiment of the present invention, Figure 4 It is a three-dimensional schematic diagram of the winding structure of a stator with double windings according to an embodiment of the present invention, please refer to image 3 and Figure 4 , the motor of this embodiment includes a stator 200 and a rotor 30 with double windings. It should be noted that, image 3 The winding structure is omitted, and the stator 200 with double windings includes a stator core 20 , a first winding 21 and a second winding 22 , and a plurality of stator slots 201 are disposed inside the stator core 20 . The first winding 21 has two first winding halves 211 . The second winding 22 has two second w...

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Abstract

The invention provides a stator with double windings and a motor. The stator with double windings includes a stator core, a first winding and a second winding. A plurality of stator slots are arranged inside the stator core. The first winding has two first winding halves. The second winding has two second winding halves, the first winding and the second winding are arranged in the same stator slot, and the first winding halves and the second winding halves are arranged alternately . The stator with double windings of the present invention can improve the starting performance and overload capacity of the motor.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a stator winding structure and a motor with the winding structure. Background technique [0002] When the large circulating water pump motor is in operation, the amount of circulating water varies with the seasons. In order to adjust the speed of the motor according to the operating conditions, so as to improve the operating efficiency of the equipment and save electric energy, the motor is usually selected with double windings, two speeds and three phases. asynchronous motor. The motor includes two sets of independent windings, the two independent windings are embedded in the same stator slot, the lead wires of each set of windings are independent of each other, one set of stator windings is used for high speed, and the other set of stator windings is used for low speed. Only one set of windings is used during work, and the other set of windings is in an open state. [0003] f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/12H02K3/28H02K3/34H02K17/12
CPCH02K3/12H02K3/28H02K3/34H02K17/12
Inventor 刘卫兵曹文良
Owner SIEMENS AG