Title:
THERMAL PROTECTOR
Document Type and Number:
WIPO Patent Application WO/2010/103599
Kind Code:
A1
Abstract:
Disclosed is a simply-structured thermal protector having an excellent current responsivity or thermal responsivity, wherein another process is not necessary to incorporate a resistor. In a press working process wherein a movable plate (4) is cut out from an original material, a movable plate body portion (16) of the movable plate (4) is separated into a small width portion (17) and a large width portion (18) by an elongated hole (19). The movable plate (4) is attached to a stationary conductor (2) via columns (9) of an insulator (3). A bimetal (5) is attached to the movable plate (4), and the assembled components are entirely pressed by a resin block (6). The tips of the columns (9) are melted to secure the securing portions of the assembled components. The large width portion (18) functions as an usual movable plate. The small width portion (17) functions as a conductor in a normal state, and functions as a resistor for excess current.
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Inventors:
TAKEDA, Hideaki (2-176-1, Takasu, Misato-sh, Saitama 37, 〒3410037, JP)
Application Number:
JP2009/007053
Publication Date:
September 16, 2010
Filing Date:
December 21, 2009
Export Citation:
Assignee:
UCHIYA THERMOSTAT CO., LTD. (2-176-1, Takasu Misato-sh, Saitama 37, 〒3410037, JP)
ウチヤ・サーモスタット株式会社 (〒37 埼玉県三郷市高州２丁目１７６番１号 Saitama, 〒3410037, JP)
ウチヤ・サーモスタット株式会社 (〒37 埼玉県三郷市高州２丁目１７６番１号 Saitama, 〒3410037, JP)
International Classes:
H01H37/54; H01H37/14; H01H37/52
Attorney, Agent or Firm:
OSUGA, Yoshiyuki (3rd Fl, Nibancho Bldg. 8-20, Nibancho, Chiyoda-k, Tokyo 84, 〒1020084, JP)
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