Stator of outer rotor type motor for drum type washing machine

Details Stator of outer rotor type motor for drum type washing machine Stator of outer rotor type motor for drum type washing machine

2006-11-21

2006-11-21

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S194000, C310S216055

Reexamination Certificate

active

07138741

ABSTRACT:
The present invention provides an outer rotor type motor for a drum type washing machine to reduce material and weight for fabrication, simplify fabrication process, provide stable assembly of a stator to a fixing side, such as a tub or a bearing housing, prevent unwinding of stacked steel plates in assembling a helical core, and reduce stress on the steel plates of the core. The present invention includes a helical core having multiple layers formed by winding steel plates in a helix starting from a bottom layer to a top layer, the steel plate having a base portion with teeth projected from the base portion, wherein the teeth have arched shape tips for reducing vibration and noise generated by cogging torque of the helical core, an upper insulator of an electric insulating material covered on an upper side of the helical core in a shape complementary to a shape of the helical core, and a lower insulator of an electric insulating material covered on a lower side of the helical core at the time of assembly with the upper insulator having a shape complementary to a shape of a helical core.

REFERENCES:
patent: 3860843 (1975-01-01), Kawasaki et al.
patent: 4835839 (1989-06-01), Forbes et al.
patent: 5323074 (1994-06-01), Sakashita et al.
patent: 5489811 (1996-02-01), Kern et al.
patent: 5844346 (1998-12-01), Kolomeitsev et al.
patent: 5969455 (1999-10-01), Sakamoto
patent: 5977680 (1999-11-01), Lin
patent: 6044737 (2000-04-01), Yao et al.
patent: 6127760 (2000-10-01), Nagasaki et al.
patent: 6181047 (2001-01-01), Nitta
patent: 2004/0056557 (2004-03-01), Enomoto et al.
patent: WO-92/22121 (1992-12-01), None

Affiliated with

Also associated with

Rating

Stator of outer rotor type motor for drum type washing machine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stator of outer rotor type motor for drum type washing machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stator of outer rotor type motor for drum type washing machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3685918