Magnet retaining arrangement

Details Magnet retaining arrangement Magnet retaining arrangement

H - Electricity

02

K

H02K 1/30 (2006.01) H02K 1/27 (2006.01) H02K 1/28 (2006.01)

Patent

CA 2588484

The present invention provides a permanent magnet rotor arrangement that is particularly suitable for low- speed large-diameter electrical generators. The arrangement includes a rotor (2) having a radially outer rim (4). A circumferential array of magnet carriers (12) is affixed to the outer rim (4) of the rotor and have a radially outer surface. An inverted U-shaped pole piece retainer (18) made of non-magnetic material such as stainless steel is affixed to each magnet carrier (12) and is formed with an axially extending channel. At least one pole piece (16) made of a magnetic material such as steel is located adjacent to the radially outer surface of each magnet carrier (12) and in the channel formed in its associated pole piece retainer (18).

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