| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum heat insulation panel that is light weight and has superior heat insulating characteristics.SOLUTION: A vacuum heat insulation panel 100 includes: an air tight space 120 formed by using a pair of side plates 101, 102 and frame members 104, 106 closing circumference parts of these plates 101, 102; and a discharge pipe 119 for vacuum drawing the air tight space 120. Also, the air tight space 120 includes in its inside a pair of side plates 101, 102 and an substantially parallelly arranged inner panel 110; and a plurality of protrusions 112 disposed in the inner plate 110 and in contact with at least one side of inner surfaces of the side plates 101, 102 for preventing the deformation of the pair of side plates 101, 102 caused by the difference in atmospheric pressures of inside and outside of the air tight space 120. At least one side of side plates 101, 102 is formed of a glass. |
