Patent ID: 9608484
Date: 2017-03-28
CPC Classifications: H02K

Claim:
1. A motor comprising: a first rotor configured to be disposed on a first side of a stator and a second rotor configured to be disposed on a second side of the stator, opposite the first side; wherein the first rotor comprises: a plurality of first modules, each of which comprises a pair of first permanent magnets, spaced apart from each other, and a first connection unit which contacts with cross-sectional ends of the first permanent magnets thereby connects the first permanent magnets, wherein the second rotor comprises: a plurality of second modules, each of which comprises a pair of second permanent magnets, spaced apart from each other, and a second connection unit which contacts with cross-sectional ends of the second permanent magnets thereby connects the second permanent magnets, wherein each of the plurality of first modules extends from an outer circumferential surface to an inner circumferential surface of the first rotor, and each of the plurality of second modules extends from an outer circumferential surface to an inner circumferential surface of the second rotor, and wherein the pair of first permanent magnets of each of the plurality of first modules are arranged so that opposed magnetic poles of the pair of the first permanent magnets are of the same polarity, and the pair of second permanent magnets of each of the plurality of second modules are arranged so that opposed magnetic poles of the pair of second permanent magnets are of the same polarity.