High voltage capacitors
US7715173B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2008 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Aug 11, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/435
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A capacitor includes a ceramic capacitor body having opposite ends and comprised of a plurality of electrode layers and dielectric layers and first and second external terminals attached to the ceramic capacitor body. The internal active electrodes within the ceramic capacitor body are configured in an alternating manner. Internal electrode shields within the ceramic capacitor body are used to assist in providing resistance to arc-over. The shields can include a top internal electrode shield and an opposite bottom internal electrode shield wherein the top internal electrode shield and the opposite bottom internal electrode shield are on opposite sides of the plurality of internal active electrodes and each internal electrode shield extends inwardly to or beyond a corresponding external terminal to thereby provide shielding. Side shields are used. The capacitor provides improved resistance to arc-over, high voltage breakdown in air, and allows for small case size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.