Line start permanent magnet motor

Details Line start permanent magnet motor Line start permanent magnet motor

1998-03-31

1999-09-14

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310184, 310211, 310217, 310261, H02K 2112, H02K 100, H02K 1716, H02K 106

Patent

active

059527579

ABSTRACT:
An electric motor including a stator having a stator core, a start winding and first and second main windings is described. The first main winding and the start winding are configured to form a lower number of poles than the second main windings. The stator core forms a stator bore. The motor also includes a rotor having a rotor shaft concentrically arranged axially of the stator core and a rotor core positioned concentrically with the rotor shaft. Secondary conductors are arranged axially of the rotor shaft and extend through the rotor core. A plurality of permanent magnets are located at an outer periphery of the rotor core and are magnetized to form a number of poles equal to the number of poles formed by the second main winding.

REFERENCES:
patent: 4103213 (1978-07-01), Landgraf
patent: 4454438 (1984-06-01), Yamashita et al.
patent: 4726112 (1988-02-01), King et al.
patent: 5548172 (1996-08-01), Kliman et al.

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