(19)
(11) EP 1 416 503 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
09.06.2004 Bulletin 2004/24

(43) Date of publication A2:
06.05.2004 Bulletin 2004/19

(21) Application number: 03024535.1

(22) Date of filing: 27.10.2003
(51) International Patent Classification (IPC)7: H01F 7/18, H01H 47/00, H01H 51/22, H01H 51/27, H01H 50/16, H01F 7/08
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 30.10.2002 JP 2002316610
12.02.2003 JP 2003033822

(71) Applicant: Hitachi, Ltd.
Chiyoda-ku, Tokyo 101-8010 (JP)

(72) Inventors:
  • Yabu, Masato, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Kii, Tomoyuki, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Morita, Ayuma, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Nakazawa, Akio, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Kawakami, Hisao, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Shinagawa, Takumi, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Sugino, Tomohiro, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Fujita, Yasunobu, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Nakamura, Matsuru, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Shiina, Takashi, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Satou, Sadao, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Ogasawara, Kenichi, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Isono, Satoshi, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Tsuchiya, Kenji, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Hashimoto, Toshio, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Abe, Keisuke, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Koyama, Kenji, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)
  • Fukuchi, Masahiro, Hitachi, Ltd., Int. Prop. Gp
    Chiyoda-ku Tokyo 100-8220 (JP)

(74) Representative: Strehl Schübel-Hopf & Partner 
Maximilianstrasse 54
80538 München
80538 München (DE)

   


(54) Solenoid-operated switching device and control device for electromagnet


(57) The present invention permits a configuration for workability enhancement by mounting an electromagnet 14 under the center of a casing 10, mounting a capacitor 16 and a control circuit board 18 on either side of the electromagnet 14, mounting an auxiliary contact 34, an indicator plate 36 , and a counter 38 over the electromagnet 14, attaching the auxiliary contact 34, indicator plate 36, and counter 38 to a plate 56 to make them integral with the electromagnet 14, and rendering the capacitor 16 and control circuit board 18 removable from the front.






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