Metal working – Method of mechanical manufacture – Electrical device making
Patent
1996-09-20
1999-07-27
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
29609, 336 65, 336210, 336212, H01F 4102
Patent
active
059269464
ABSTRACT:
Two sets of a combination of an iron core formed of laminated strip-shaped electromagnetic steel plates and a coil are arranged in parallel, and these are abutted via core gap spacers against two iron cores formed of laminated trapezoidal electromagnetic steel plates, so that a square-shaped magnetic path is formed. Two outside iron cores of the four iron cores are coupled and fixed with metal fittings. With such an arrangement, the coil is divided into two, with increased surface areas of the coils and therefore an improved cooling characteristic. Further, since the electromagnetic steel plates used for the iron cores can be formed into simple shapes, electromagnetic steel plates of various sizes can be easily manufactured, so that iron cores of optimum dimensions can be provided, optionally depending on the type of the reactor.
REFERENCES:
patent: 830272 (1906-09-01), Wilson
patent: 2350029 (1944-05-01), Glass, Jr.
patent: 2475421 (1949-07-01), Camras
patent: 2494180 (1950-01-01), Koubek
patent: 3246273 (1966-04-01), Reade
patent: 3522569 (1970-08-01), Oechsle
patent: 3684991 (1972-08-01), Trump et al.
Bito Toshiaki
Minato Tetsuya
Takashima Kazushige
Teranishi Junichi
Toyoda Shohei
Hall Carl E.
Matsushita Electric - Industrial Co., Ltd.
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