Outside rotor electric machine with reduced air gap variation

Details Outside rotor electric machine with reduced air gap variation Outside rotor electric machine with reduced air gap variation

H - Electricity

02

K

H02K 1/30 (2006.01) H02K 1/27 (2006.01)

Patent

CA 2625571

A method of providing an outside rotor electric machine having a reduced radial air gap variation across an axial length of the air gap, the machine including a rotor having a cylindrical elongated portion supporting magnets and a flange extending at least partially radially from a rotating shaft, the method comprising increasing a radial deflection of the elongated portion in proximity of the flange by connecting the elongated portion to the flange through a radial spring having a stiffness lower than that of the elongated portion.

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