DOOR OF REFRIGERATOR

• Main Authors: YAMAMOTO HARUYOSHI, TSUDA KENJI, NAKADA JUNICHI
• Format: Patent
• Language: English
• Published: 20.02.1992
• Subjects: BLASTING; COLD ROOMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS; DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; HEAT PUMP SYSTEMS; HEATING; ICE-BOXES; LADDERS; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION OR COOLING; REFRIGERATORS; WEAPONS

PURPOSE:To prevent condensation by raising surface temperature of a laminating fixing frame of an outer plate by providing a door constructed with a heat insulation plate comprising the laminating fixing frame having U-shaped grooves at upper and lower four corners, and an aluminum foil heater around a notched hole in the back of the other plate. CONSTITUTION:An aluminum foil heater 12 is formed with an aluminum foil 13 and a heater cord 14, and stuck to the periphery of a notched hole 5 formed in the back of an outer plate 6. A U-shaped groove 15 is provided in upper and lower portions of a laminating fixing frame 2, into which a cut piece 16 of the outer plate 6 and a cut piece 17 of an inner plate 8 are inserted repeatedly to fix a heat insulation plate 18 comprising a transparent glass 1 and an interval adjusting spacer 3. The refrigerator door formed as above is insulated from heat by a foamed urethane heat insulating material 10 and the heat insulation plate 18. Further, for the heat insulation plate 18 the interior of the refrigerator can be observed through the glass plate 1. Furthermore, for the inner plate 8 and the laminating fixing frame 2 it is inserted and fixed through the U-shaped grooves 15 and hence there is no leakage of the foamed urethane heat insulating material 10.