Rotor for electromotor using permanent magnets

Details Rotor for electromotor using permanent magnets Rotor for electromotor using permanent magnets

H - Electricity

02

K

H02K 1/27 (2006.01) H02K 5/24 (2006.01)

Patent

CA 2686363

There is disclosed a rotor for an electromotor using permanent magnets. The rotor comprises one or more C-type permanent magnets 9, a core 10, and a rotor shaft 15. Each of the one or more C-type permanent magnets 9 has a C shape and provides magnetic force. The core 10 has a cylindrical shape and has the one or more C-type permanent magnets 9 coupled thereto with different magnetic poles. An aperture 11 is formed at each of the boundaries of the C--type permanent magnets 9 having the different magnetic poles. The rotor shaft 15 is formed at the center of the core 10. Cogging torque can be reduced because a magnetic field of the C-type permanent magnets coupled through the outside core forms a normal sine wave form.

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