Rotor and method of manufacturing the same and electric vehicle

Details Rotor and method of manufacturing the same and electric vehicle Rotor and method of manufacturing the same and electric vehicle

2007-03-09

2011-11-15

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S156010, C310S216004, C310S216007, C310S216059, C310S216062, C310S216065

Reexamination Certificate

active

08058767

ABSTRACT:
A rotor includes: a rotor core fixedly attached to a rotational shaft and having a magnet-inserted hole portion; a magnet inserted into the magnet-inserted hole portion; and a resin portion injected into the magnet-inserted hole portion. The rotor core is constructed by axially stacking a plurality of electromagnetic steel sheets. The electromagnetic steel sheets include: an electromagnetic steel sheet having the magnet-inserted hole portion and a weight-reducing-purpose hole portion provided separately from the magnet-inserted hole portion; and an electromagnetic steel sheet located on at least one axial end of the rotor core and having a portion covering the hole portion formed in the electromagnetic steel sheet.

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