Drum type washing machine with rotor and shaft having...

Details Drum type washing machine with rotor and shaft having... Drum type washing machine with rotor and shaft having...

2008-04-08

2008-04-08

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S091000

Reexamination Certificate

active

07355315

ABSTRACT:
A rotor of motor for drum type washing machine comprises a stator formed of a field winding; a rotor disposed outside the stator to house the stator, and having a yoke surface on which a permanent magnet for performing a magnetic interaction with the field winding of the stator, the rotor rotating around the stator; a shaft bushing for connecting the rotor and the rotation shaft, which is installed on the bottom surface, wherein a plurality of the rotation groove portions whose width of one side is more narrowly formed than whose width of other side are formed at regular intervals on the bottom surface of the rotor, wherein fixed protrusion which is inserted the rotation groove portions and is fixed when moved along the rotation groove portions by rotation of the shaft bushing is protruded on the bottom surface of the shaft bushing.

REFERENCES:
patent: 3575621 (1971-04-01), Voland et al.
patent: 61-106038 (1986-05-01), None
patent: 09-285051 (1997-10-01), None
patent: 2000-192983 (2000-07-01), None

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