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Permanent magnet motor and compressor

A technology of permanent magnet motor and magnetic parts, applied in machine/engine, synchronous motor with static armature and rotating magnet, magnetic circuit, etc., can solve the problem of inability to take into account high and low frequency efficiency, and reduce the skin effect , The effect of improving manufacturability and reducing AC resistance

Pending Publication Date: 2017-11-21
GUANGDONG MEIZHI COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a permanent magnet motor, which aims to solve the defect that the permanent magnet motor in the prior art cannot take into account high and low frequency efficiency

Method used

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  • Permanent magnet motor and compressor
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  • Permanent magnet motor and compressor

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, in t...

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Abstract

The invention discloses a permanent magnet motor and a compressor. The permanent magnet motor comprises a stator and a rotor. The stator comprises a stator core, a plurality of coil groups, and two motor lead groups. Each coil group comprises a plurality of coils which are coiled on stator bulging teeth. Each coil group comprises an incoming line terminal and a leading-out terminal formed by joints in the same number. Each motor lead group has a plurality of joints used to connect with the coil groups, and a motor lead of a motor control circuit. An inverter with a control algorithm provides power input for the permanent magnet motor. An effective value Um of maximum voltage between terminals, provided to the permanent magnet motor by the inverter, and no-load back EMF ke value between motor line terminals satisfy 4<=Um / ke<=56, wherein unit of Um is volt, unit of ke is volt / thousand round per minute. The permanent magnet motor can also satisfy torque output capacity of a motor in high-frequency.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a permanent magnet motor and a compressor. Background technique [0002] High-speed motors have always been one of the main research hotspots in the field of motors. High-speed motors are used in many occasions such as spindle drives, centrifuges, and turbo pumps. [0003] When the motor input power and electromagnetic load are constant, the miniaturization of the motor can be realized by increasing the motor speed, so as to reduce the cost of the motor, reduce the space occupied by the motor, and increase the power and torque density of the motor. Therefore, in the compressor industry, high-speed miniaturization has quickly become one of the important research hotspots. [0004] Usually, the high-speed motor mainly refers to the speed, but in the actual design, it does not only pay attention to the running speed of the motor. Because it is not difficult for the motor to simply...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/14H02K1/27H02K11/30H02K3/38H02K21/16F04B35/04
CPCH02K1/14H02K1/274H02K3/38H02K11/30H02K21/16F04B35/04
Inventor 徐飞邱小华乔正忠
Owner GUANGDONG MEIZHI COMPRESSOR
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