| 摘要 |
PROBLEM TO BE SOLVED: To allow a plurality of spaces to be efficiently evacuated and allow the respective spaces to be separated and individually used.SOLUTION: A vacuum heat insulation panel 10 comprises: first and second panel members 11 and 16 opposed to each other; a plurality of spaces 20 formed between the first and second panel members 11 and 16 and evacuated; and seal parts 19A and 19B that seal the outer periphery of the respective spaces 20. A plurality of concave and convex portions 17 and 18 are provided on the whole surface on the spaces 20 side of at least the second panel member 16 out of the first and second panel members 11 and 16, and the seal portions 19A and 19B are formed by plastically deforming the concave and convex portions 17 and 18. |
