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High-speed permanent magnet generator

A permanent magnet generator, high-speed technology, applied in magnetic circuits, electromechanical devices, electrical components, etc., can solve problems such as disadvantage, complex stator cooling structure, and increase motor speed, and achieve low high-frequency loss, simple structure, and reduced harmonics. The effect of wave loss

Pending Publication Date: 2022-02-01
WOLONG ELECTRIC NANYANG EXPLOSION PROTECTION GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Through the above analysis, the problems and defects of the existing technology are: the cooling structure of the stator is complex, and the use of silicon steel sheets for the rotor is not conducive to increasing the speed of the motor

Method used

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Embodiment Construction

[0030] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0031] see figure 1 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, term...

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Abstract

The invention provides a high-speed permanent magnet generator comprises a stator base and a stator core with a winding, wherein the stator base is connected with a bearing through an end cover, a rotor is arranged on the bearing, the shaft extension end of the rotor is locked by the bearing, a spring piece is arranged in a bearing chamber located at the tail of the non-shaft extension end of the rotor, and the spring piece axially abuts against the rotor. According to the invention, a high-magnetic-conductivity rotor core and a rotating shaft of the motor rotor are designed in a split mode, and the rotor core and the rotating shaft do not interfere with each other; and after arc-shaped magnetic steel and the rotor core are assembled, a non-magnetic-conductivity alloy sleeve sheath sleeves an outer circle, epoxy resin fills in space between the arc-shaped magnetic steel and the two ends of the arc-shaped magnetic steel so as to protect and fix the arc-shaped magnetic steel, and non-magnetic-conductive cover plates are arranged at the two ends of the arc-shaped magnetic steel, so magnetic leakage at the ends can be prevented.

Description

technical field [0001] The invention belongs to the technical field of permanent magnet motors, in particular to a high-speed permanent magnet generator. Background technique [0002] In the distributed power generation system, the high-speed generator driven by the gas turbine is small in size and has high mobility. It can be used as a backup power source for hospitals, hotels and other important facilities, and can also be used as an independent power source or a small power station to make up for centralized power supply. It has important practical value. [0003] When the high-speed permanent magnet motor is running, the current frequency of the stator winding can be as high as 1000Hz, and the rotation speed of the rotor of the high-speed permanent magnet motor is as high as tens of thousands of revolutions per minute. The heat dissipation condition is poor, the stator adopts water-cooled base, or the stator is oil-cooled, and the cooling system has a complex structure....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/16H02K1/20H02K1/18H02K5/02H02K5/20H02K1/28H02K1/278H02K5/16H02K11/01
CPCH02K1/165H02K1/20H02K1/185H02K5/02H02K5/20H02K1/28H02K1/278H02K5/161H02K11/012
Inventor 周少正邢印吴宣东乔建伟李艳丽张浩刘建波苑旭东李小辉刘平吕玥浩肖志强
Owner WOLONG ELECTRIC NANYANG EXPLOSION PROTECTION GRP CO LTD