| 摘要 |
An electric machinery provided with a PM magnetic pole sandwiched by a permeable polar face (111) and a magnetic circuit (102) from an individual magnetic pole provides an innovative design of having disposed the PM magnetic pole sandwiched between the permeable polar face (111) and the magnetic circuit (102) from the individual magnetic pole to prevent PM magnetic pole from falling off and avoid PM magnetic pole magnetic force from being weakened by inverse excitation during the operation.
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