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Motor stator core and compressor

A motor stator and iron core technology, applied in the direction of electromechanical devices, electrical components, electric components, etc.

Active Publication Date: 2019-07-09
GUANGDONG WELLING ELECTRIC MACHINE MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem existing in the prior art that the accuracy of the air gap cannot be controlled while reducing the harmonics of the air-gap magnetic field, to provide a motor stator iron core punching sheet, and to use the motor stator iron core punching sheet composed of the motor stator iron core Core enables better concentric positioning while reducing air gap magnetic field harmonics to control air gap accuracy

Method used

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  • Motor stator core and compressor
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Embodiment Construction

[0033] In the present invention, unless stated to the contrary, the used orientation words such as "up, down, left, and right" generally refer to up, down, left, and right with reference to the drawings. "Inner and outer" refer to inner and outer relative to the outline of the part itself. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] The present invention provides a stator core stamping sheet of a motor, which includes a yoke 10, a reference axis 20, and a plurality of teeth 30 arranged on the yoke 10 and protruding toward the refe...

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Abstract

A core lamination of a motor stator, core of a motor stator, and compressor. The core lamination of a motor stator comprises a yoke portion (10), a reference axis (20), and multiple teeth (30) provided at the yoke portion (10) and protruding toward the reference axis (20). The multiple teeth (30) at least comprise one arc-top tooth (31) and one backward-shifted tooth. An end surface of the arc-top tooth (31) facing the reference axis (20) is an arced surface forming a central opening (50) having the reference axis (20) as a center axis. An end surface of the backward-shifted tooth facing the reference axis (20) does not coincide with the end surface of the arc-top tooth (31), and at least one portion thereof is offset towards an outer side. In this way, the present invention enables superior concentric alignment while reducing magnetic field harmonics in an air gap, thus controlling air gap precision.

Description

technical field [0001] The invention relates to the electromechanical field, in particular to a motor stator iron core punching sheet, a motor stator iron core and a compressor using the motor stator iron core punching sheet. Background technique [0002] As an important energy conversion device, motors are widely used in various production machinery and equipment driven by electric motors. As an important type of motor, rotating electrical machines include stators and rotors. The motor rotor installed in the compressor generally adopts a cantilever structure. Since it is only supported by a single-sided bearing, it is necessary to adjust the air gap with tooling such as a feeler gauge during the installation of the rotor. [0003] However, the outer circular arc of the existing rotor core must have a concentric circular arc with a large span angle. The existence of this circular arc makes it more difficult to optimize the rotor, and it is difficult to reduce the harmonics ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/12
CPCH02K1/12H02K2201/03
Inventor 王飞陈金涛
Owner GUANGDONG WELLING ELECTRIC MACHINE MFG