Kabushiki Kaisha Toshiba

Toshimitsu Yamada

Susumu Nagano

Hiroshi Hatano

Noriyuki Iwata

Katsuhiko Yoshida

Shinobu Sekito

Makoto Kawahara

Mikio Kakiuchi

Tetsushi Okamoto

Fumio Sawa

Hiroyoshi Tsuchiya

S 610 Esute-City-Shonan-Mutsuura Sekito

Katsuhiko 101 Famille-Nishitani Yoshida

Makoto 403 Guran-Garden-Higashitotsuka Kawahara

Noriyuki 205 Sagamihara-Sky-Heights Iwata

A coil insulator of an electrical rotating machine used as a main insulator for insulating a bundle of conductors formed of a plurality of insulated wires to form an armature coil provided in a slot of a rotor core or a stator core of an electrical rotating machine, wherein the coil insulator includes a mica layer including at least one of a peeled-off mica and a composite mica, a woven- or unwoven cloth including at least one of inorganic and organic materials, hexagonal crystal boron nitride particles having a graphitization index of 1.8 or more, and thermosetting polymer organic resin which integrally connects the mica layer and the hexagonal crystal boron nitride particles to each other, and the hexagonal crystal boron nitride particles is oriented in a longitudinal direction of the coil.

Coil insulator, armature coil insulated by the coil insulator and electrical rotating machine having the armature coil

A coil for an electric rotating machine is configured with a conductor which is formed by bundling a plurality of square strands and stacking the square strands like a coil with Roebel transposition, mica tape which is wound a plurality of layers around an outer surface of the conductor and made up of mica paper and glass cloth backing, and an insulation wall formed by impregnating and curing resin between wound layers of the mica tape. Inorganic particles are supported with the glass cloth backing on the mica tape using an adhesive containing glue insoluble in the impregnated resin as an indispensable component.

Coil for electric rotating machine, and mica tape and mica sheet used for the coil insulation

The invention aims to provide a highly heat conductive tape member or sheet member and a method for easily producing a highly heat conductive tape member or sheet member. The mica tape member or mica sheet member of the invention includes a mica-containing layer and a lining material, and the mica-containing layer contains scaly particles, particles having a heat conductivity of 0.5 W/mK or higher and a size of 1 &#x3bc;m or smaller, and a binder.

Tape member or sheet member, and method of producing tape member or sheet member

A coil for an electric rotating machine is configured with a conductor which is formed by bundling a plurality of square strands and stacking the square strands like a coil with Roebel transposition, mica cape which is wound a plurality of layers around an outer surface of the conductor and made up of mica paper and glass cloth backing, and an insulation wall formed by impregnating and curing resin between wound layers of the mica tape. Inorganic particles are supported with the glass cloth backing on the mica tape using an adhesive containing glue insoluble in the impregnated resin as an indispensable component.

Growing community of inventors

Yokohama, Japan

Toshimitsu Yamada