Metal electrolytic capacitor, and absorbent and leakage prevention material for metal electrolytic capacitor
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United States of America Patent
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Jun 17, 2014
Issued Date -
N/A
app pub date -
Jun 2, 2010
filing date -
Jun 2, 2009
priority date (Note) -
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Abstract
A metal electrolytic capacitor capable of quickly absorbing and immobilizing a belching vapor of a driving electrolyte and widely reducing leakage when an explosion-proof valve operates. An aluminum electrolytic capacitor body is configured by housing a capacitor element in a cylindrical aluminum case, a pair of leads extend from the capacitor body, an explosion-proof valve. is formed on a top panel portion of the metal case, a cylindrical cap as a casing is attached from above to the capacitor body, a plurality of small openings are formed on a top panel portion (bottom portion) of the cap, and an absorbent or a mixture of an absorbent and a water molecular compound wrapped in a permeable fiber material, such as unwoven fabric and filter paper, is placed in a space between the cap and the top panel portion of the capacitor body.
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