| 摘要 |
PROBLEM TO BE SOLVED: To prevent crack on a thin plate part on which a hole is formed, and secure insulation of portions other than the hole.SOLUTION: A partition part (40) comprises: a partition plate body (60a) attached to a water tank (20); an elastic member (80) having elastic modulus lower than that of the partition plate body (60a), and fixed to the partition plate body (60a); and a thin-plate state thin plate part (45) on which a hole (46) is formed, and held by the elastic member (80).SELECTED DRAWING: Figure 10 |
