Punching sheet, rotor, motor and air conditioning system

A technology of punching and rotor, applied in the field of permanent magnet synchronous motor, can solve the problem of large eddy current on the rotor surface

Inactive Publication Date: 2019-03-22
GREE ELECTRIC APPLIANCES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a punching plate, rotor, motor and air conditioning system to solve the problem of large eddy currents on the rotor surface in the prior art

Method used

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  • Punching sheet, rotor, motor and air conditioning system
  • Punching sheet, rotor, motor and air conditioning system
  • Punching sheet, rotor, motor and air conditioning system

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Embodiment Construction

[0034] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0035] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs.

[0036] In the present invention, unless stated otherwise, the used orientation words such as "upper, lower, top, bottom" are usually for the directions shown in the drawings, or for the parts themselves in the vertical, In terms of vertical or gravitational direction; similarly, for the convenience of understanding and description, "inner and outer" refer to the inner and outer relative to the outline of each component itself, but the above orientation words ...

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Abstract

The invention provides a punching sheet, a rotor, a motor and an air conditioning system. The punching sheet comprises a body, wherein the body has a plurality of magnetic isolation grooves and a plurality of magnetic steel grooves, two kinds of magnetic steel of different magnetic properties are correspondingly arranged in the plurality of magnetic steel grooves, at least one magnetic isolation groove is arranged between the magnetic steel grooves corresponding to the two kinds of magnetic steel of different magnetic properties, and at least part of each magnetic isolation groove is communicated to the edge of the punching sheet so as to form an open groove. The punching sheet, the rotor, the motor and the air conditioning system solve the problem of high eddy current on the surface of the rotor in the prior art.

Description

technical field [0001] The invention relates to the field of permanent magnet synchronous motors, in particular to a punching plate, a rotor, a motor and an air conditioning system. Background technique [0002] At present, high-speed permanent magnet synchronous motors are developing rapidly and are widely used in centrifuges for HVAC equipment. Due to the high speed of the motor (generally above 10,000rpm) and the large moment of inertia of the rotor, the outer diameter of the rotor is generally used in the structure of the rotor. Small, thick and thick slender iron core (embedded magnetic steel). The permanent magnet synchronous motor rotor needs magnetic isolation between two adjacent poles, which can reduce the rotor magnetic flux leakage. At present, it is solved by separating magnetic slots. For high-power and high-speed permanent magnet synchronous motors, due to the large size of the rotor, the moment of inertia and the centrifugal force of the rotor are also large...

Claims

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Application Information

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IPC IPC(8): H02K1/27H02K1/24H02K1/32H02K21/02
CPCH02K1/24H02K1/27H02K1/32H02K21/02
Inventor 黄积光王周叶周成海黄侠昌贾金信汪汉新龚敏伍尚权龙胜民
Owner GREE ELECTRIC APPLIANCES INC
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