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Slanted pole rotors, motors, compressors and air conditioners

A compressor and rotor technology, applied in the fields of inclined pole rotors, motors, compressors and air conditioners, can solve the problems of large cogging torque content and the rotor can only be magnetized radially, to prevent offset and reduce peak value effect with content

Active Publication Date: 2022-07-12
GREE ELECTRIC APPLIANCES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem that the existing rotor can only be magnetized radially or parallelly, so that the content of the cogging torque is large, the application provides an oblique pole rotor, a motor, a compressor and an air conditioner

Method used

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  • Slanted pole rotors, motors, compressors and air conditioners
  • Slanted pole rotors, motors, compressors and air conditioners
  • Slanted pole rotors, motors, compressors and air conditioners

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Embodiment Construction

[0050] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of this application. Therefore, the following describes the present invention provided in the accompanying drawings. The detailed descriptions of the embodiments of the invention are not intended to limit the scope of the claimed invention, but are merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other...

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Abstract

The present application relates to the technical field of electric motors, and in particular to a slanted-pole rotor, a motor, a compressor and an air conditioner. The slanted-pole rotor includes a rotor shaft and a magnetic steel, the magnetic steel is sleeved outside the rotor shaft, and the magnetic steel includes at least a Two nested magnetic steel units, each of the magnetic steel units is provided with a boss for magnetization positioning, at least one boss is radially offset from the boss on the innermost magnetic steel unit, so that the magnetic steel It has different magnetization angles to achieve the purpose of the rotor slanting pole, reduce the peak value and content of cogging torque, and the boss can also locate the magnetic steel unit to prevent the magnetic steel unit from shifting inside the sheath.

Description

technical field [0001] The present application relates to the technical field of motors, and in particular, to a slanted-pole rotor, a motor, a compressor and an air conditioner. Background technique [0002] High-speed permanent magnet synchronous motor is required to have good high-speed operation smooth performance and high torque performance. However, there is cogging torque generated by the interaction between the permanent magnet and the stator cogging, which causes vibration and noise. , especially at high speed, it will seriously affect the control accuracy of the system. [0003] At present, the surface-mounted motor structure for magnetic levitation is composed of a front short shaft, a magnetic steel, a sheath and a rear short shaft. The magnetic steel is in the shape of a ring or a solid cylinder, so the motor with this structure usually cannot realize the rotor slanted pole. It will produce large eddy current loss and affect the motor efficiency. SUMMARY OF T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/276H02K1/06
CPCH02K1/27H02K1/06H02K2213/03Y02T10/64
Inventor 林学明伍尚权曹俊辉郑克强王周叶
Owner GREE ELECTRIC APPLIANCES INC