THERMALLY REACTIVE SWITCH - UBUKATA IND CO LTD

Title:

THERMALLY REACTIVE SWITCH

Document Type and Number:

WIPO Patent Application WO/2008/018515

Kind Code:

A1

Abstract:

This invention provides a thermally reactive switch (1) comprising a hermetically sealed vessel (2) comprising a metallic housing (3) and a lid plate (4), electroconductive terminal pins (10A, 10B) fixed in a hermetically sealed state in the lid plate (4), a fixed contact (8) fixed in the electroconductive terminal pin (10A), a thermally reactive plate (6), one end of which is electroconductively connected and fixed to the inner face of the hermetically sealed vessel (2) and undergoes reversion of the inflection direction at a predetermined temperature, and a movable contact (7) fixed to the other end of the thermally reactive plate (6). The movable contact (7) and the fixed contact (8) comprise a silver-tin oxide-indium oxide-base contact. A gas containing not less than 50% and not more than 95% of helium is sealed within the hermetically sealed vessel (2) so that the pressure is not less than 0.25 atm and not more than 0.8 atm at room temperature.

Inventors:

UEDA YOSHIHISA (JP)
KOIKE TAKEO (JP)
URANO MITSUHIRO (JP)
SATO SHIGEMI (JP)

Application Number:

PCT/JP2007/065551

Publication Date:

February 14, 2008

Filing Date:

August 08, 2007

Export Citation:

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Assignee:

UBUKATA IND CO LTD (JP)
UEDA YOSHIHISA (JP)
KOIKE TAKEO (JP)
URANO MITSUHIRO (JP)
SATO SHIGEMI (JP)

International Classes:

H01H37/54

Foreign References:

JPH10144189A	1998-05-29
JPS62259326A	1987-11-11
JPH08161954A	1996-06-21
JP2519530B2	1996-07-31
JPH10144189A	1998-05-29
JP2002352685A	2002-12-06
JP2003059379A	2003-02-28

Other References: