Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1981-09-28
1983-05-10
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
335302, H02K 2126
Patent
active
043831931
ABSTRACT:
A field pole structure of a DC motor has a plurality of field magnetic poles attached to the inner surface of a yoke of the DC motor to oppose an armature. Each magnetic pole includes a permanent magnet, and an auxiliary pole member coupled to an end of the permanent magnet directed in opposition to the rotational direction of the armature and having permeability higher than reversible permeability of the permanent magnet. The permanent magnet has a single magnet body constructed by integrally formed first and second magnet members, the first magnet member being disposed at a half of the permanent magnet remote from the auxiliary pole member and made of a magnetic material of large coersive force, and the second magnet member being interpoled between the first magnet member and the auxiliary pole member and made of a magnetic material of large residual magnetic flux density, the boundary portion between the first and second magnet members being a region in which the magnetic material of large coersive force and the magnetic material of large residual magnetic flux density are mixed.
REFERENCES:
patent: 3594599 (1971-07-01), West
patent: 3939371 (1976-02-01), Murakami
patent: 4110718 (1978-08-01), Odor et al.
patent: 4112320 (1978-09-01), Mohr
patent: 4237397 (1980-12-01), Mohr et al.
Tajima Humio
Takamastu Syuichi
Tomite Tosio
Hitachi , Ltd.
Skudy R.
LandOfFree
Field pole structure of DC motor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Field pole structure of DC motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Field pole structure of DC motor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-527611