| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly reliable capacitor by solving the problem that an electrolyte for driving easily leaks from a pressure control valve, with respect to a capacitor to be used for an automobile etc. SOLUTION: The capacitor comprises a metal case housing a capacitor element together with the electrolyte for driving and having an internal bottom surface joined to one electrode, and a terminal plate having an internal surface joined to the other electrode of the capacitor element and sealing an opening of the metal case. A pressure control value also used as a hole 5a for pouring the electrolyte for driving is provided on this terminal plate. This pressure control valve consists of an elastic member 6 in a ring shape, a gas permeable sheet 7 joined to the top surface, a rubber valve body 8 arranged thereon and a cap 9 for housing these and holding the valve body 8 in a compressed state. The elastic member 6 is forced into a wall portion 5b provided on the terminal plate 5. With this configuration, the highly reliable capacitor eliminating the leakage of the electrolyte for driving can be achieved. COPYRIGHT: (C)2007,JPO&INPIT |
