POWER TRANSMISSION APPARATUS

摘要

A power transmission apparatus working to magnetically transmit power is provided which includes a first rotor including n soft-magnetic members, a second rotor including k soft-magnetic members, and a third rotor including magnets whose number of pole pairs is m where m is an integer more than or equal to one, the number of the magnets meeting a relation of 2m=|k±n| where n and k are an integer more than one. The first rotor, the second rotor, and the third rotor are arranged in magnetic coupling with each other. The soft-magnetic members of each of the first rotor and the second rotor are arranged at intervals away from each other, thereby minimizing the leakage of magnetic flux flowing from one of the soft-magnetic members to another in each of the first and second rotor to ensure the stability in operation of the power transmission mechanism.

主权项

1. A power transmission apparatus working to transmit power using magnetic force comprising:
a first rotor including n soft-magnetic members where n is an integer more than one; a second rotor including k soft-magnetic members where k is an integer more than one; and a third rotor including magnets whose number of pole pairs is m where m is an integer more than or equal to one, the number of the magnets meeting a relation of 2m=|k±n|, wherein the first rotor, the second rotor, and the third rotor are arranged in magnetic coupling with each other, and wherein the soft-magnetic members of each of the first rotor and the second rotor are arranged at intervals away from each other.