| 摘要 |
PROBLEM TO BE SOLVED: To provide sealing rubber 3 preventing deterioration of sealability even if sealing rubber 3 is bend-deformed by internal pressure rise of a case 1 of an electrolytic capacitor. SOLUTION: Sealing rubber 3 is closely engaged with the inner periphery of the opening part 11 of the case 1 in the electrolytic capacitor. An outer peripheral face 32 of sealing rubber 3 is caulked/fixed to a caulked projection 12 toward an inner peripheral side formed by caulking the opening part 11 from an outer periphery. In sealing rubber 3, the inner face 33 receiving internal pressure of the case 1 forms a concave face in a conical shape or a spherical shape. COPYRIGHT: (C)2006,JPO&NCIPI
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