| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrolytic capacitor which suppresses an increase in its own weight caused by the reinforcement of a bottomed cylindrical case and maintains excellent vibration resistance while preventing the deformation of the bottom surface of the bottomed cylindrical case.SOLUTION: The electrolytic capacitor has a structure in which a groove-like thin portion used as a pressure valve is provided on the side surface of the case so that, when inner pressure reaches predetermined pressure, the valve releases the inner pressure in the bottomed cylindrical case in which a capacitor element having anode foil and cathode foil which are wound via a separator is impregnated with an electrolyte and housed. In the electrolytic capacitor, a rib is formed at the bottom of the case. |
