Invention Grant
US08928198B2 Brushless PM machine construction enabling low coercivity magnets 有权
无刷PM机构构造能够实现低矫顽磁铁

Brushless PM machine construction enabling low coercivity magnets
Abstract:
The present disclosure provides a brushless permanent magnet machine which includes an essentially circular shaped rotor, and a pair of magnets arranged in the rotor. The magnets are each U-shaped and have a thickness direction extending along a contour of the corresponding magnet between the opposite poles of the corresponding magnet, respectively. The magnets are each composed of a non-rare earth material having a lower coercivity than a rare earth material. A direction of magnetization of each of the pair of magnets is parallel to the thickness direction of the corresponding magnet. The present disclosure also provides a method of manufacturing such a brushless permanent magnet machine.
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