Title:
THERMAL TYPE TRIPPING DEVICE AND CIRCUIT BREAKER USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2005/104159
Kind Code:
A1
Abstract:
A thermal type tripping device adapted to trip a circuit in that a bimetal (2) is heated by overcurrent to cause the curving of the bimetal (2), wherein at least part of the surface of the bimetal (2) has a black color or matte black color (7). This makes it possible to measure the temperature of the bimetal (2) with high accuracy by using a non-contact type thermometer. Further, the temperature measuring section (8) of the bimetal is provided with a bend process section (11) whose surface has a matte black color.
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Inventors:
Kawamura, Kouji c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Akita, Hiroyuki c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Murai, Masatoshi c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Yonezawa, Hirotoshi c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Naito, Satoru c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Akita, Hiroyuki c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Murai, Masatoshi c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Yonezawa, Hirotoshi c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Naito, Satoru c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Application Number:
PCT/JP2004/005705
Publication Date:
November 03, 2005
Filing Date:
April 21, 2004
Export Citation:
Assignee:
MITSUBISHI DENKI KABUSHIKI KAISHA (7-3 Marunouchi 2-Chome, Chiyoda-Ku Tokyo, 10, 10083, JP)
Kawamura, Kouji c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Akita, Hiroyuki c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Murai, Masatoshi c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Yonezawa, Hirotoshi c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Naito, Satoru c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Kawamura, Kouji c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Akita, Hiroyuki c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Murai, Masatoshi c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Yonezawa, Hirotoshi c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
Naito, Satoru c/o Mitsubishi Denki Kabushiki Kaisha (7-3 Marunouchi 2-Chome, Chiyoda-K, Tokyo 10, 10083, JP)
International Classes:
H01H71/16; H01H73/02; (IPC1-7): H01H71/16
Attorney, Agent or Firm:
Oiwa, Masuo (14-1, Minamitsukaguchi-Cho 2-Chome Amagasaki-Shi, Hyogo, 661-0012, JP)
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