AC generator for vehicle having combined structure of field coil

Details AC generator for vehicle having combined structure of field coil AC generator for vehicle having combined structure of field coil

1996-10-31

1998-10-20

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310181, 310156, H02K 1122

Patent

active

058251162

ABSTRACT:
An AC generator has a rotor with permanent magnets disposed between claw poles. The rotor has Lundell-type pole cores having a boss portion where a field coil is wound and claw poles. The permanent magnets are sintered ferrite magnets and disposed between opposite side surfaces of the adjacent claw poles and magnetized to have the same magnetic pole as the claw pole adjacent thereto. A ratio between the cross-sectional area per pole of the magnetic path of the boss portion and peripheral surface area of the claw poles facing the teeth of the stator core is designed to be between 70% to 120%.

REFERENCES:
patent: 4654551 (1987-03-01), Farr
patent: 5132581 (1992-07-01), Kusase
patent: 5237232 (1993-08-01), Kitamura
patent: 5306977 (1994-04-01), Hayashi
patent: 5536987 (1996-07-01), Hayashi et al.

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