VACUUM HEAT INSULATING MATERIAL, AND REFRIGERATOR USING THIS

• Main Authors: IZEKI TAKASHI, ARAKI KUNINARI, TSURUGA TOSHIMITSU, ECHIGOYA HISASHI, KAMOTO DAIGORO
• Format: Patent
• Language: English
• Published: 11.03.2010
• Subjects: BLASTING; COLD ROOMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEAT PUMP SYSTEMS; HEATING; ICE-BOXES; JOINTS OR FITTINGS FOR PIPES; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; REFRIGERATION OR COOLING; REFRIGERATORS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material for reducing a global environmental load such as energy in manufacturing and recycling processing during disposal, and to increase flexibility in shape machining such as hole drilling, and bending. SOLUTION: The vacuum heat insulating material has: an outer cover member 11 comprising a gas barrier layer and a heat fusion bonding layer; a core member 20 in which a fiber spun from the polymeric resin is layered; and an inner bag 12 containing the core member therein. The heat fusion bonding layer of the outer cover member, the inner bag and the core member are made of the same material. The outer cover member, the inner bag and the core material are hot press molded so that the outer cover member, the inner bag and the core member are heat sealed to form a hot sealing area 22. One vacuum heat insulating material is divided into a plurality of vacuum heat insulating parts by sandwiching the hot-sealing area 22. The outer cover member, the inner bag, and the core member are fusion bonded by a first fusion bonding process for forming a flat recessed part by press fusion bonding, and fusion bonding only the core member 20, and a second fusion bonding process for heat fusion bonding the outer cover member 11 and the inner bag 12 for an adequate portion of the flat recessed part, and forming the hot-sealing area 22. COPYRIGHT: (C)2010,JPO&INPIT