| US 7,507,911 B2 | ||
| Coil for electric rotating machine, and mica tape and mica sheet used for the coil insulation | ||
| Katsuhiko Yoshida, Yokohama (Japan); Noriyuki Iwata, Sagamihara (Japan); Hiroshi Hatano, Yokohama (Japan); Susumu Nagano, Kawasaki (Japan); Shinobu Sekito, Yokohama (Japan); Toshimitsu Yamada, Yokohama (Japan); and Makoto Kawahara, Yokohama (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan) | ||
| Filed on Jun. 04, 2007, as Appl. No. 11/757,788. | ||
| Application 11/757788 is a division of application No. 10/690644, filed on Oct. 23, 2003, granted, now 7,294,788. | ||
| Application 10/690644 is a continuation of application No. PCT/JP02/04033, filed on Apr. 23, 2002. | ||
| Claims priority of application No. 2001-132940 (JP), filed on Apr. 27, 2001. | ||
| Prior Publication US 2007/0222308 A1, Sep. 27, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. H01B 7/00 (2006.01) | ||
| U.S. Cl. 174—120R | 13 Claims |
| 1. A coil for an electric rotating machine, comprising:
a conductor configured 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 on surface of the conductor and made up of mica paper and cloth backing
material;
an insulation layer formed with impregnating and curing resin between wound layers of the mica tape; and
inorganic particles supported with the mica tape using an adhesive comprising a first component having mutual dissolubility
with the impregnating resin and a second glue component insoluble in the impregnating resin, the second glue provided in an
amount sufficiently small so as not to inhibit impregnation of impregnating resin, yet sufficiently large so as to impede
outflow of said inorganic particles.
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