Electrolytic capacitor case design with insert molded elastomer seals
US7696002B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2007 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Jun 25, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a method for manufacturing a feed thru for use in an electrolytic capacitor case. First, an electrode is inserted into a liquid injection mold. Liquid elastomer is then injected into the mold to surround a portion of the electrode. The elastomer is cured, and the resulting electrode and feed thru combination is inserted into a machined hole in a capacitor case. The machined hole may be located on either the base or the lid of the capacitor case. In other embodiments, a ferrule may also be placed in the liquid injection mold prior to injecting liquid elastomer. When a ferrule is used, the assembly may be welded into a machined hole in a capacitor case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.