| 摘要 |
<p>PROBLEM TO BE SOLVED: To achieve high output of magnet type rotary electric machinery that is able to improve output without increasing size and cost thereof.SOLUTION: An AC dynamo for a vehicle, according to the invention, comprises a fly wheel 3 having an internal peripheral wall rotating together with a shaft; a rotor 1 having main magnets 4 and auxiliary magnets 5 arranged along a circumferential direction of the internal peripheral wall such that one alternates the other; and a stator 2 provided on the inner diameter side of this rotor 1 and forming a magnetic circuit in cooperation with the rotor. The main magnets 4 are arranged such that each main magnet 4 is magnetized to N pole and S pole in a radial direction thereof and is magnetized in a magnetic pole opposite to that of the main magnet 4 skipped over its adjacent auxiliary magnet 5. The auxiliary magnet 5 are arranged such that each auxiliary magnet 5 is magnetized in N pole and S pole in a circumferential direction thereof and also magnetized in a magnetic pole opposite to that of auxiliary magnet 5 skipped over the adjacent main magnet 4.</p> |
