Rotating electrical machine
Abstract:
In an IPM motor, since an end surface portion which is a pressed powder compact made of soft magnetic powder has a higher electrical resistivity than an electrical resistivity of a main body portion made of a laminated steel sheet, compared to when the electrical resistivity of the end surface portion is the same as the electrical resistivity of the main body portion, the occurrence of an eddy current in the end surface portion is further prevented. For this reason, in the IPM motor, a deterioration in efficiency caused by an eddy current loss is prevented, and an improvement in efficiency is realized.
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