Title:
STARTING DEVICE FOR SINGLE-PHASE INDUCTION MOTOR
Document Type and Number:
WIPO Patent Application WO/2004/051836
Kind Code:
A1
Abstract:
When a starting current runs through an auxiliary winding (S), a main PTC (12) and an auxiliary PTC (14) undergo self-heating for an increased electric resistance. When the auxiliary PTC (14) is heated to 140°C, a snap-action bimetal (18) is turned off to stop a current flow to the main PTC (12) and completes the starting of a single-phase induction motor (70). With the bimetal (18) off, a feeble current runs through the auxiliary PTC (14) side only to keep the bimetal (18) off by heat generated by the current.
Inventors:
Sahashi, Mikio c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Matsuya, Akihiko c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Iwasaki, Shinichi c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Okada, Motoi c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Itoh, Kazuo c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Matsuya, Akihiko c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Iwasaki, Shinichi c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Okada, Motoi c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Itoh, Kazuo c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Application Number:
PCT/JP2003/015191
Publication Date:
June 17, 2004
Filing Date:
November 27, 2003
Export Citation:
Assignee:
YAMADA ELECTRIC MFG. CO., LTD. (5-45, Kami-Iida Minami-Machi Kita-k, Nagoya-shi Aichi, 462-0804, JP)
MATSUSHITA REFRIGERATION COMPANY (2-3-1-2, Noji-Higashi Kusatsu-shi, Shiga, 525-8555, JP)
Sahashi, Mikio c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Matsuya, Akihiko c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Iwasaki, Shinichi c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Okada, Motoi c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Itoh, Kazuo c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
MATSUSHITA REFRIGERATION COMPANY (2-3-1-2, Noji-Higashi Kusatsu-shi, Shiga, 525-8555, JP)
Sahashi, Mikio c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Matsuya, Akihiko c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Iwasaki, Shinichi c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Okada, Motoi c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
Itoh, Kazuo c/o Yamada Electric Mfg. Co. Ltd. (5-45, Kami-Iida Minami-Machi, Kita-k, Nagoya-shi Aichi, 462-0804, JP)
International Classes:
H02K17/08; H02K17/30; H02P1/42; H02P1/44; H01H1/50; H01H61/00; (IPC1-7): H02P1/42; H02K17/08
Attorney, Agent or Firm:
Tashita, Akihito (22-6, Sakae 1-chome Naka-k, Nagoya-shi Aichi, 460-0008, JP)
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