DEFROSTING HEATER, AND REFRIGERATOR HAVING THE DEFROSTING HEATER

Title:

DEFROSTING HEATER, AND REFRIGERATOR HAVING THE DEFROSTING HEATER

Document Type and Number:

WIPO Patent Application WO/2003/031890

Kind Code:

A1

Abstract:

A defrosting heater in a refrigerator with a flammable refrigerant sealed therein, comprising a first glass tube (53) having a heater wire (52) inside thereof, a plug (58) covering both end opening parts of the first glass tube (53) and a second glass tube (54), a lead wire (55) piercing the plug (58) and connected to an end of the heater wire (52), and a positioning plate (57) disposed on a connection part of the lead wire (55) with the heater wire (52). Flame propagation can be prevented by setting the size of a space (58b) formed by the plug (58) and the positioning plate (59) according to the sealing quantity of the flammable refrigerant and the surface temperature of the heater wire (52), and an unstable state in a defrosting mode is prevented even when the flammable refrigerant leaks.

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JPS61223472

METHOD OF CONTROLLING REFRIGERATOR

Inventors:

ONISHI ICHIRO (JP)
MAEDA TOSHIKI (JP)
YOKOE AKIRA (JP)
TAKEUCHI KAZUYOSHI (JP)

Application Number:

PCT/JP2002/006724

Publication Date:

April 17, 2003

Filing Date:

July 03, 2002

Export Citation:

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Assignee:

MATSUSHITA REFRIGERATION (JP)
ONISHI ICHIRO (JP)
MAEDA TOSHIKI (JP)
YOKOE AKIRA (JP)
TAKEUCHI KAZUYOSHI (JP)

International Classes:

F25D21/08; H05B3/04; H05B3/44; (IPC1-7): F25D21/08

Foreign References:

JPH02144385U	1990-12-07
JPH10232082A	1998-09-02
JPH06147732A	1994-05-27
JP2001133127A	2001-05-18
JPH11257831A	1999-09-24
JPS4863339U	1973-08-11

Other References: