Method of manufacturing insulated coil

Details Method of manufacturing insulated coil Method of manufacturing insulated coil

2006-10-17

2006-10-17

Kim, Paul D. (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S417000, C029S592100, C029S602100, C029S605000, C029S829000, C029S831000, C156S089110, C156S089120, C336S176000, C336S200000, C336S212000, C336S229000, C336S234000, C427S117000, C427S118000, C427S119000, C427S120000

Reexamination Certificate

active

07120993

ABSTRACT:
On a surface of a glass cloth adhered a mica layer sheet, a mixture of inorganic particles having a thermal conductivity of at least 5 W/mK, a resin, and a solvent is applied to form a layer of the mixture of the inorganic particles, the resin, and the solvent; the layer of the mixture is reduced in thickness using a doctor blade, followed by pressurizing to form a high thermally conducting layer; the mica layer sheet on which the high thermally conducting layer is disposed is cut to obtain a mica insulating tape; and the mica insulation tape is wound around a coil conductor. As a result, an insulated coil that is excellent in the voltage endurance characteristics and has a high thermal conductivity is manufactured.

REFERENCES:
patent: 4286010 (1981-08-01), Staley et al.
patent: 4554730 (1985-11-01), Westervelt et al.
patent: 4806806 (1989-02-01), Hjortsberg et al.
patent: 6140590 (2000-10-01), Baumann et al.
patent: 2002/0056569 (2002-05-01), Tsunoda et al.
patent: 02288308 (1990-11-01), None
patent: 11-206056 (1999-07-01), None
patent: 2002-374646 (2002-12-01), None
“High-current density coils for high-radiation environments”; Harvey, A.; Magnetics, IEEE Transactions on vol. 17, issue 5; Sep. 1981 pp. 1717-1719.
Brütsch et al, New High Voltage Insulation with Increased Thermal Conductivity,EEIC/ICWA Conference in Chicago, 1993, pp. 323-327.

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