Direct current motor using magnets with extensions

Details Direct current motor using magnets with extensions Direct current motor using magnets with extensions

2005-03-22

2005-03-22

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

06870290

ABSTRACT:
A direct current motor is comprised of an armature, magnets arranged to face each other through the armature, a commutator and brushes. The armature has a core and a plurality of coils wound on the core. Each magnet has a main part and an extension extending form the main part. The main part has an angular interval which corresponds to an interval of winding each coil, so that the extension is positioned outside the coil in the circumferential direction. During the commutation period of the coil, that is, during shorting of the coil by the brush, the amount of magnetic flux passing through the coil is changed by the extension of the magnet. Thus, an induction voltage is generated in the coil to counteract to a reactance voltage of the coil.

REFERENCES:
patent: 4383193 (1983-05-01), Tomite et al.
patent: 4687608 (1987-08-01), Eino
patent: 4703210 (1987-10-01), Abukawa et al.
patent: 4794291 (1988-12-01), Abukawa et al.
patent: 5083054 (1992-01-01), Tomite et al.
patent: 5204569 (1993-04-01), Hino et al.
patent: 5314344 (1994-05-01), Ida et al.
patent: 5677587 (1997-10-01), Sakashita et al.
patent: 6076554 (2000-06-01), Jensen et al.
patent: 6155421 (2000-12-01), Cooper
patent: 6342744 (2002-01-01), Harada et al.
patent: 6446666 (2002-09-01), Wadsworth et al.
patent: 004109729 (1992-10-01), None
patent: A-H05-168209 (1993-07-01), None
patent: A-H05-176509 (1993-07-01), None
patent: A-H05-176510 (1993-07-01), None

Affiliated with

Also associated with

Rating

Direct current motor using magnets with extensions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Direct current motor using magnets with extensions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct current motor using magnets with extensions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3375069