VACUUM HEAT INSULATION MATERIAL AND REFRIGERATOR

• Main Authors: ECHIGOYA HISASHI, KAMOTO DAIGORO, ARAI YUSHI, TERAUCHI YASUTO
• Format: Patent
• Language: English; Japanese
• Published: 05.01.2015
• 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 core material, a vacuum heat insulation material and a refrigerator having high heat insulation performance.SOLUTION: A fiber assembly 51a is laminated. Two lines of slits 58a, 58b are provided which penetrate from a top layer fiber assembly 51a to an intermediate position of a lower layer fiber assembly 51c than the top layer fiber assembly 51a. After forming the slits 58a, 58b, pressure is applied between the two slits 58a, 58b, and a part of the top layer fiber assembly 51a is made to protrude in an intermediate layer fiber assembly 51b, and a part of the intermediate layer fiber assembly 51b is made to protrude in the bottom layer fiber assembly 51c. Thereby, the part of the top layer fiber assembly 51a is engaged with the intermediate layer fiber assembly 51b, and the part of the intermediate layer fiber assembly 51b is engaged with the bottom layer fiber assembly 51c, so that positional deviation of each fiber assembly can be prevented during transportation and when accommodating in an inner bag 52. 【課題】断熱性能が高い芯材、真空断熱材及び冷蔵庫を提供する。【解決手段】繊維集合体５１ａを積層する。最上層の繊維集合体５１ａから最上層の繊維集合体５１ａよりも下層の繊維集合体５１ｃの中間位置まで達する２条のスリット５８ａを設ける。スリット５８ａ、５８ｂの形成後、２条のスリット５８ａ、５８ｂの間を加圧し、最上層の繊維集合体５１ａの一部を中間層の繊維集合体５１ｂ内に突出させ、中間層の繊維集合体５１ｂの一部を最下層の繊維集合体５１ｃ内に突出させる。これにより、最上層の繊維集合体５１ａの一部が中間層の繊維集合体５１ｂに係合し、中間層の繊維集合体５１ｂの一部が最下層の繊維集合体５１ｃに係合するので、搬送時や内袋５２内への収納時における各繊維集合体の位置ずれを防止できる。【選択図】図４