VACUUM INSULATOR

摘要

PURPOSE: A vacuum insulator is provided to improve heat insulation capacity by the formation of a narrow cross section, since the cross section of horizontal beams and vertical beams are narrowly alternated. CONSTITUTION: A vacuum insulator comprises first and second horizontal beams(100,300), and first and second vertical beams(200,400). The first and second horizontal beams and first and second vertical beams are crossed at a fixed angle. The cross sections of the first and second horizontal beams and the first and second vertical beams are changed to become narrow or wide on a cycle of 1/2 of a predetermined gap. The wide cross section of the first vertical beam is attached to the wide cross section of the first horizontal beam. The wide cross section of the second horizontal beam is attached on the wide cross section of the first vertical beam.