High-power permanent-magnet motor rotor, installation method of rotor and method for magnetizing rotor permanent magnet

Abstract

The invention provides a high-power permanent-magnet motor rotor especially suitable for high-power permanent-magnet synchronous windmill generators, an installation method of the rotor and a method for magnetizing a permanent magnet. By adopting a permanent magnet embedded structure, the rotor is divided into a plurality of axial rotor units, and the iron core between every adjacent two pole permanent magnets of each rotor unit is provided with a rotor-axial magnetic isolation groove which is fixed by a partition between an end plate and the rotor unit. The rotor not only avoids magnetic leakage and enhances the intensity, but also simplifies the manufacture and assembly of the rotor as well as the magnetizing procedure of the permanent magnet, thereby enhancing the production efficiency.

Description

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AI Technical Summary

Benefits of technology

This patented technical effect described in this patents relates to an improved type of electric machine called High Power Permanent Magnet (HPM) motors due to their unique construction feature. These machines have several advantages over traditional designs: they reduce size while still being able to generate more powerful torque compared to older models or even better performance than previous versions. They may include various types of components such as bearings, bushings, coils, etc., allowing them to fit together easily within existing spaces inside the housing. Additionally, these systems allow for easy maintenance and replacement of individual parts, resulting in lower costs associated therewith. Overall, HPM's superiority results in enhanced energy usage capabilities and increased reliability.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the performance and reliability of rare earth magnetic materials (REM) in various fields like wind turbines or machinery driven through variable speeds without losing their effectiveness over longer periods of use. Current methods involve expensive equipment and complicated processes involving multiple steps during installation process.

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