Permanent magnet rotor type electric motor

Details Permanent magnet rotor type electric motor Permanent magnet rotor type electric motor

1998-10-20

1999-10-05

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310193, 310114, 310112, 310162, 310261, 310216, H02K 2114

Patent

active

059629444

ABSTRACT:
In a permanent magnet rotor type electric motor having a stator core generating a rotation magnetic field and provided therein with a rotor core in which each magnetic pole is formed by a permanent magnet, the rotor core is fabricated by coaxially and unitedly joining a first core member and a second core member, in which a first permanent magnet of a predetermined cross-section shape is embedded per magnetic pole in the first core member, and a second permanent magnet which is made of a different material and has a different cross-section shape from those of the first permanent magnet is embedded per magnetic pole in the second core member, thereby achieving the permanent magnet rotor type electric motor having the performance and size appropriate for the intended use.

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