Heat resistant and explosion-proof type permanent magnetic synch

Details Heat resistant and explosion-proof type permanent magnetic synch Heat resistant and explosion-proof type permanent magnetic synch

1992-05-19

1993-08-03

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 89, 310261, H02K 510

Patent

active

052332489

ABSTRACT:
A heat resistant and explosion-proof permanent magnetic synchronous motor having a stator which includes an armature iron core made by piling up steel plates with surface covered with a mineral insulation material and disposed on an inner peripheral surface of a pressure case, an armature coil made by winding a wire covered with a mineral insulation material around a slot of the armature iron core, a can hermetically sealing the armature iron core, a back-up sleeve supporting the can at a portion where the armature iron core is not provided, and a slot piece of a mineral insulation material supporting the can at an opening portion of the slot. The motor also includes a rotor including a magnetic yoke connected to an outer peripheral surface of an actuating shaft provided to penetrate the pressure case and rotatably supported thereon, a plurality of rotor magnetic poles disposed on an outer peripheral surface of the magnetic yoke, and a non-metallic case covering an outer peripheral surface of the rotor magnetic pole.

REFERENCES:
patent: 3215083 (1965-11-01), Sarles et al.
patent: 4492884 (1985-01-01), Asano et al.
patent: 4832899 (1989-05-01), Wilson et al.
patent: 4963780 (1990-10-01), Hochstrasser
patent: 5091668 (1992-02-01), Cuenot et al.

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