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1. (WO2015121984) INDUCTION MOTOR ROTOR

Pub. No.:    WO/2015/121984    International Application No.:    PCT/JP2014/053528
Publication Date: Fri Aug 21 01:59:59 CEST 2015 International Filing Date: Sat Feb 15 00:59:59 CET 2014
IPC: H02K 17/16
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: SAITO, Nozomu
齋藤 望
Title: INDUCTION MOTOR ROTOR
Abstract:
An induction motor rotor is provided with: a rotor core that is formed in a cylindrical shape by laminating a plurality of circular ring-shaped magnetic steel sheets having a rotary shaft hole, and that has a plurality of core slots formed in the core; a conductor ring fixed at both shaft ends of the rotor core and having a plurality of conductor slots formed in the ring corresponding to the core slots of the rotor core; conductor bars inserted into the core slots and the conductor slots and each having threads formed at an end of the bar; and double nuts screwed onto the threads to threadedly engage the rotor core and the conductor ring with each other. The conductor bars and the double nuts are formed of the same conductive material.