Brushless generator with permanent magnets

Details Brushless generator with permanent magnets Brushless generator with permanent magnets

2005-03-08

2005-03-08

Mullins, Burton S. (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S154010, C310S181000, C322S046000

Reexamination Certificate

active

06864608

ABSTRACT:
Disclosed is a brushless generator with permanent magnets, which provides high-speed operation, simple maintenance, lightweight, and stable power. The brushless generator with permanent magnets including a main generator with a stator and a rotor; and an auxiliary generator having a stator made of a hollow stator core and a coil wound around the stator core, and a rotor made of a rotor core rotating within the stator core and a coil wound around the rotor core, where wedges and grooves are formed alternatively on the inner portion of the stator core of the auxiliary generator, and permanent magnets are embedded in the body of the grooves and the coil is wound around the body of the grooves. Accordingly, without the use of a brush, a rated load voltage is generated from the permanent magnets of the auxiliary generator, and voltage variations due to load variations are controlled by the windings of the auxiliary generator. Therefore, along with reduction in capacity of controller, high-speed operation and highly efficient operation become possible, small size and lightweight can be obtained, and maintenance can be simpler.

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