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Method for lowering stray loss of motor

A technology of stray loss and accommodating slots, applied in the direction of magnetic circuit shape/style/structure, magnetic circuit static parts, magnetic circuit rotating parts, etc., can solve the problem of high stray loss of the motor, so as to improve the efficiency of the motor, Effect of reducing stray loss

Inactive Publication Date: 2011-01-19
SHANGHAI TOP MOTOR +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

According to the actual test, the matching of the number of rotor winding accommodation slots and stator winding accommodation slots of the motor has a great influence on the stray loss of the motor, while the design of existing motors often ignores the relationship between the rotor winding accommodation slots and the stator winding accommodation slots The influence of quantity matching on the stray loss of the motor makes the actual stray loss of the existing motor usually high

Method used

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  • Method for lowering stray loss of motor
  • Method for lowering stray loss of motor
  • Method for lowering stray loss of motor

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Embodiment Construction

[0011] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings, but the present embodiments are not intended to limit the present invention, and any similar structures and similar changes of the present invention should be included in the protection scope of the present invention.

[0012] Such as Figure 1-Figure 2 As shown, the embodiment of the present invention provides a method for reducing the stray loss of the motor. The motor includes a stator 11 and a rotor 21. The stator 11 is in the shape of a ring column, and its inner peripheral surface is axially symmetrical with multiple A stator winding accommodation slot 12, the rotor 21 is cylindrical, and its outer peripheral surface is provided with a plurality of rotor winding accommodation slots 22 symmetrically along the circumferential axis, which is characterized in that: the number of rotor winding accommodation slots 22 and stator winding accommo...

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Abstract

The invention provides a method for lowering the stray loss of a motor, which relates to the technical field of the motor. The motor comprises a stator and a rotor, wherein the stator is in the shape of an annular column, and a plurality of stator winding holding tanks are axially and symmetrically arranged on the inner circumferential surface of the stator along the circumferential direction; and the rotor is in the shape of a circular column, and a plurality of rotor winding holding tanks are axially and symmetrically arranged on the outer circumferential surface of the rotor along the circumferential direction. The method is characterized in that the quantity of the rotor winding holding tanks is matched with the quantity of the stator winding holding tanks in a near-tank and few-tank mode which means that the quantity of the rotor winding holding tanks is less than the quantity of the stator winding holding tanks, and the difference between the quantity of the rotor winding holding tanks and the quantity of the stator winding holding tanks is less than or equal to 4. The method provided by the invention can improve the efficiency of the motor.

Description

technical field [0001] The invention relates to motor technology, in particular to a method for reducing the stray loss of the motor. Background technique [0002] Motor efficiency is an important index for evaluating motor performance. Factors affecting motor efficiency are mainly composed of iron loss, copper loss, mechanical loss and stray loss. [0003] The stray loss of the existing motor is calculated according to 0.5% of the input power of the motor, and the actual stray loss of the motor has no influence on the calculation result, so that the influence of the actual stray loss of the existing motor is often ignored when evaluating the performance of the motor . [0004] Existing motors are provided with a plurality of stator winding accommodation grooves symmetrically along the circumferential axis on the inner surface of the stator, and a plurality of rotor winding accommodation grooves are arranged symmetrically along the circumferential axis on the outer surface ...

Claims

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Application Information

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IPC IPC(8): H02K1/16H02K1/26
Inventor 张国杨吴逢生
Owner SHANGHAI TOP MOTOR
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