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Title:
DEVICE HAVING RELAY
Document Type and Number:
WIPO Patent Application WO/2005/036579
Kind Code:
A1
Abstract:
A device having a relay exhibiting a reduced ratio of the operation current during an overload and that during a lock. A heater (33) is provided such that a thermo-switch part (40) is in a contact position during ordinary temperatures and in a noncontact position during high temperatures. If an excessive current flows without rotation of a motor (M) at a startup, a current flows into the heater (33) side, so that a heating of the heater (33) causes a main bimetal (21) to immediately interrupt the current. After a start of the motor (M), a conveyance of heat from a compressor turns on the thermo-switch part (40), thereby short-circuiting the heater (33) side. In this way, even if an excessive current instantaneously flows during driving of the motor, the main bimetal (21) is inhibited from being placed in the noncontact position.

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Inventors:
Yamada, Shinya c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Sahashi, Mikio c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Niino, Masahiko c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Furuyama, Katsumi c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Fukao, Katsuyuki c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Matsuya, Akihiko c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Yamaguchi, Makoto c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Itoh, Kazuo c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Application Number:
PCT/JP2004/014728
Publication Date:
April 21, 2005
Filing Date:
October 06, 2004
Export Citation:
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Assignee:
Yamada Electric Mfg. Co., Ltd. (5-45, Kami-Iida Minami-Machi Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Yamada, Shinya c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Sahashi, Mikio c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Niino, Masahiko c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Furuyama, Katsumi c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Fukao, Katsuyuki c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Matsuya, Akihiko c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Yamaguchi, Makoto c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
Itoh, Kazuo c/o Yamada Electric Mfg. Co. (Ltd. 5-45 Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi 04, 46208, JP)
International Classes:
H01H61/00; (IPC1-7): H01H37/54; H01H37/14
Attorney, Agent or Firm:
Tashita, Akihito (22-6, Sakae 1-chome Naka-ku, Nagoya-shi Aichi 08, 46000, JP)
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