VACUUM HEAT INSULATION MATERIAL AND REFRIGERATOR USING THE SAME

• Main Authors: ARAKI KUNINARI, ECHIGOYA HISASHI, ARAI YUSHI, KAMOTO DAIGORO, TERAUCHI YASUTO
• Format: Patent
• Language: English; Japanese
• Published: 30.10.2014
• 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 make it possible to easily extract a core material from a vacuum heat insulation material at a time of disposal of a product using the vacuum heat insulation material.SOLUTION: A vacuum heat insulation material comprises: a core material 51 formed of a fiber assembly; adsorbent adsorbing gas or water and arranged in the core material 51; an inner wrapping material 52 wrapping the core material 51; and an envelope material 53 containing the inner wrapping material 52. A grip portion 56 for taking out the inner wrapping material 52 from the envelope material 53 is provided on the inner wrapping material 52, and the grip portion 56 is thermally welded 54 to and fixed to the inner wrapping material 52. A length of the grip portion 56 in an evacuation direction is larger than that of an end portion of the core material 51 in the evacuation direction. Regions of the grip portion 56 that are thermally welded to the inner wrapping material 52 are both end portions in a width direction of the inner wrapping material 52 orthogonal to the evacuation direction, and the thermally welded regions are located in folded portions of the vacuum heat insulation material obtained by folding back edges of the core material 51. 【課題】真空断熱材を用いた製品の廃棄時に真空断熱材から芯材を容易に取り出せるようにすること。【解決手段】繊維集合体から成る芯材５１と、ガス又は水分を吸着し芯材内に配置された吸着剤と、芯材５１を包む内包材５２と、内包材５２を収納する外被材５３と、から構成から、外被材５３から内包材５２を取り出すための取っ手部５６を内包材５２に設け、取っ手部５６は内包材５２に熱溶着５４されて固定されていること。また、取っ手部５６の真空引き方向の長さは、芯材５１の真空引き方向の端部よりも延設されていること。また、取っ手部が内包材に熱溶着された部位は、内包材における真空引き方向と直交する幅方向の両端部であり、熱溶着された部位は、芯材の端縁で折り返された真空断熱材の耳部に位置すること。【選択図】図３