Defrosting heater, and refrigerator having the defrosting heater

bA defrosting heater in a refrigerator with a flammable refrigerant sealed therein, including a first glass tube having a heater wire inside thereof, a plug covering both end opening parts of the first glass tube and a second glass tube, a lead wire piercing the plug and connected to an end of the h...

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Bibliographic Details
Main Authors Onishi, Ichiro, Maeda, Toshiki, Yokoe, Akira, Takeuchi, Kazuyoshi
Format Patent
LanguageEnglish
Published 18.12.2007
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Summary:bA defrosting heater in a refrigerator with a flammable refrigerant sealed therein, including a first glass tube having a heater wire inside thereof, a plug covering both end opening parts of the first glass tube and a second glass tube, a lead wire piercing the plug and connected to an end of the heater wire, and a positioning plate disposed on a connection part of the lead wire with the heater wire. Flame propagation can be prevented by setting the size of a space formed by the plug and the positioning plate according to the sealing quantity of the flammable refrigerant and the surface temperature of the heater wire, and an unstable state in a defrosting mode is prevented even when the flammable refrigerant leaks.