PUMP MOTOR, CANNED PUMP HAVING THE PUMP MOTOR, AND DISHWASHER HAVING THE CANNED PUMP

摘要

PROBLEM TO BE SOLVED: To improve detection accuracy of the switching position of a magnetic pole on the end face of a magnet part on a counter-impeller side, by a position detection sensor while preventing the magnet part from scattering due to cracking or the like.;SOLUTION: A resin part 57 of a rotor 7 includes an outer peripheral cover part 74, an inner peripheral cover part 73, and a connection part 75 connecting both cover parts 73, 74. The outer peripheral cover part 74 is formed by filling a resin material into a band-shaped groove part 56 formed at the end of the outer peripheral side-surface 9f of the magnet part 9 on the counter-impeller side in the axial direction. The inner peripheral cover part 73 is formed of a resin material covering the entire inner peripheral surface of the magnet part 9. The connection part 75 is formed by filling a resin into a through-hole 47 which connects the inner peripheral side-surface of the magnet part 9 with the bottom wall surface 56f of the band-shaped groove part 56.;COPYRIGHT: (C)2013,JPO&INPIT