| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotor core for a rotary electric machine having high rotation strength. <P>SOLUTION: Core plate pieces 3 have multiple caulking parts 10<SB POS="POST">1</SB>-10<SB POS="POST">8</SB>which include salient parts 11<SB POS="POST">1</SB>-11<SB POS="POST">8</SB>protruding from faces at one side and recessed parts 12<SB POS="POST">1</SB>-12<SB POS="POST">8</SB>for coupling with the salient parts of the caulking parts of other layers. Couplings of salient parts and recessed parts are tight fit in radial direction and loose fit with gaps d<SB POS="POST">21</SB>-d<SB POS="POST">24</SB>in circumferential direction. The caulking parts 10<SB POS="POST">1</SB>-10<SB POS="POST">8</SB>are composed of first caulking parts 10<SB POS="POST">4</SB>and 10<SB POS="POST">5</SB>which are adjacent to positions of joints D<SB POS="POST">2</SB>of the core plates overlapping in the lamination direction, second caulking parts 10<SB POS="POST">1</SB>and 10<SB POS="POST">8</SB>which are arranged at ends of the core plates, and third caulking parts 10<SB POS="POST">2</SB>, 10<SB POS="POST">3</SB>, 10<SB POS="POST">6</SB>and 10<SB POS="POST">7</SB>which are formed between the first and the second caulking parts. The gaps d<SB POS="POST">21</SB>between the recessed parts of the second caulking parts and the salient parts of the first caulking parts of other layers are set to be the largest among the gaps d<SB POS="POST">21</SB>-d<SB POS="POST">24</SB>. <P>COPYRIGHT: (C)2012,JPO&INPIT |
