Iron core for electrical machinery and apparatus as well as meth

Details Iron core for electrical machinery and apparatus as well as meth Iron core for electrical machinery and apparatus as well as meth

1984-05-31

1986-09-23

Duggan, Donovan F.

Inductor devices

Magnetic orientation

148111, 148121, 310 42, 310216, H01F 2724

Patent

active

046138420

ABSTRACT:
For the iron cores of an electrical machinery and apparatuses, such as transformers, electric motors and generators, mostly a grain-oriented electromagnetic steel sheet is used. Since the grain-oriented electromagnetic steel sheet has a (110) [001]texture and is thus easily magnetized in the rolling direction, the direction of magnetic flux in the iron cores is required to be coincident with the rolling direction. However, this requirement cannot be completely fulfilled due to the shape and an operation efficiency of producing the iron cores as well as generation of a magnetic reluctance in the butted iron-core elements. Laser irradiation regions are formed, according to the present invention, for example, on the following: the parts of the iron core where the rotational magnetic field is generated; the entire surface of the I-type elements or: the major part of the E or C type element.
As a result of the laser-irradiation, the watt loss is low even where the complete coincidence of the easy direction of magnetization and the magnetic flux direction is difficult.

REFERENCES:
patent: 1136942 (1916-04-01), Cutten
patent: 2628273 (1953-02-01), Somerville
patent: 2774000 (1956-12-01), Ross
patent: 2792511 (1957-05-01), Horstman
patent: 2968860 (1961-01-01), Mereness
patent: 3076160 (1963-01-01), Daniels
patent: 3647575 (1972-03-01), Fiedler et al.
patent: 4293350 (1981-10-01), Ichiyama et al.

Affiliated with

Also associated with

Rating

Iron core for electrical machinery and apparatus as well as meth does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Iron core for electrical machinery and apparatus as well as meth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Iron core for electrical machinery and apparatus as well as meth will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-768424