| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermal storage capsule for simplifying in the case of adjacently disposing a plurality of the capsules with an excellent thermal storage efficiency. SOLUTION: The thermal storage capsule comprises a first wall 1 and a second wall 2 having an extent in a direction substantially parallel to a virtual plane 4 at opposite sides via the plane 4, and an internal space 3 for charging a thermal storage material T between the walls 1 and 2. In the capsule, recesses 5 recessed to a side of the space 3 and protrusions 6 expanded at an opposite side to the space 3 are respectively provided at a first outer surface 1A of an outer surface of the wall 1 and a second outer surface 2A of an outer surface of the wall 2. In this case, the recess 5 formed on the surface 1A and the protrusion 6 formed on the surface 2A and the protrusion 6 formed on the surface 1A and the recess 5 formed on the surface 2A are formed coincident with a normal direction X of the surface 1A or 2A. |
