Electrolytic capacitor provided with a pressure relief valve

Details Electrolytic capacitor provided with a pressure relief valve Electrolytic capacitor provided with a pressure relief valve

1978-10-13

1981-01-13

James, Andrew J.

Electricity: electrical systems and devices

Miscellaneous

29570, H01G 900, B01J 1700

Patent

active

042452775

ABSTRACT:
Electrolytic capacitors are provided with a pressure-relief valve which opens if the gas pressure inside the capacitor exceeds a given value to relieve the pressure. In the case of severe electrical overloading, however, the gas-relief passage usually is of insufficient size to prevent excessive pressure build-up, and there is a possibility of explosions. The present invention provides a capacitor in which the pressure-relief valve comprises a venting aperture in a bowl-shaped recess member with the aperture being closed by an elastic member held in compression over the aperture by a thermoplastic strip secured at its ends to the wall of the capacitor housing. The valve is self-sealing for minor pressure increases, but with severe increases a rapid temperature rise of the capacitor roll softens the thermoplastic strip which then allows the elastic member to be blown away so that the aperture becomes directly open to the atmosphere and allows the excessive pressure to be released very rapidly to prevent any possible explosion.

REFERENCES:
patent: 2178686 (1939-11-01), Georgiev et al.
patent: 2227319 (1940-12-01), Pontis et al.
patent: 3280381 (1966-10-01), Ayer
patent: 3463969 (1969-08-01), Wershey
patent: 3904939 (1975-09-01), Carino
patent: 4007405 (1977-02-01), Maijers et al.

Affiliated with

Also associated with

Rating

Electrolytic capacitor provided with a pressure relief valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrolytic capacitor provided with a pressure relief valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrolytic capacitor provided with a pressure relief valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2234332