November 25, 2008

A rotor includes a rotor core fixedly provided on a shaft and having a hole, a magnet inserted into the hole, and a resin portion injected between the side surface of the hole and the side surface of the magnet and, the side surface of the magnet has a groove formed therein as a spread-promoting portion that promotes spread of the injected resin portion.

7

November 25, 2008

11/350,071

February 9, 2006

310/156.21   310/261

H02K   21/12   (20060101)  

Feb 24, 2005 [JP] 2005-048867

310/156.01   310/2   310/3   310/4   310/5   310/6   310/7   310/8   310/9   310/10   310/11   310/12   310/13   310/14   310/15   310/16   310/17   310/18   310/19   310/20   310/21.84   310/261