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Permanent magnetic synchronous motor

A technology of permanent magnet synchronous motors and permanent magnets, which is applied to synchronous motors with stationary armatures and rotating magnets, magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc., and can solve problems such as complex rotor processing, It achieves the effect of avoiding the complex process of stator core processing and winding off-line process, good temperature stability and preventing irreversible demagnetization

Inactive Publication Date: 2010-07-21
BEIJING POWER MACHINERY INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The built-in structure does not require permanent magnet protection measures, but the rotor processing is complicated

Method used

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  • Permanent magnetic synchronous motor
  • Permanent magnetic synchronous motor
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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Aiming at the above-mentioned defects of the existing high-speed permanent magnet synchronous motor, the present invention provides a high-speed permanent magnet synchronous motor with an improved structure. The rotor structure of the permanent magnet synchronous motor is a cylindrical integral permanent magnet protected by a cylindrical sheath. magnet. Through reasonable stator and rotor structure and material design, the problems of high-speed permanent magnet synchronous generator loss, temperature rise suppression, and dynamic and static mechanics of the rotor are effectively solved, and the structure of the permanent magnet synchronous motor according to the embodiment of the present invention is more efficient. Simple, less loss, more s...

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Abstract

The invention provides a permanent magnetic synchronous motor, which at least comprises a motor case (1), a stator iron core (4), a stator armature winding (3), a rotor protective sleeve (4) and a rotor permanent magnet (5), wherein the rotor permanent magnet (5) is arranged in the rotor protective sleeve (4), and in addition, the rotor protective sleeve (4) firmly covers the rotor permanent magnet (5) through the heating interference fit.

Description

technical field [0001] The invention relates to a permanent magnet synchronous motor, in particular to a permanent magnet synchronous motor provided with a cylindrical integral permanent magnet whose rotor structure is protected by a cylindrical sheath. Background technique [0002] At present, the research on high-speed and ultra-high-speed motors and generators (collectively referred to as "high-speed motors" hereinafter) is a research hotspot and difficulty in the international electrotechnical field. High-speed motor is a new high-tech electromechanical product integrating material technology, power electronics technology, control technology, motor design and manufacturing technology. The research of high-speed motors involves many technical disciplines, and its speed can usually be as high as tens of thousands to hundreds of thousands of revolutions per minute, or even higher. Compared with ordinary motors, high-speed motors have the following significant advantages: ...

Claims

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Application Information

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IPC IPC(8): H02K21/14H02K1/27
Inventor 谢清明袁宁孟凡坤袁鹏高军张晓辉
Owner BEIJING POWER MACHINERY INST
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