Fuel cell stack
US9413028B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2011 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Nov 11, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell stack is provided that comprises a laminate obtained from unit cells of rectangular plates, end plates disposed at both end surfaces of the laminate, and a pair of reinforcing plates disposed on a first and third outer peripheral surfaces, wherein the respective end plates and reinforcing plates are connected. Each reinforcing plate has a base plate covering that covers the first or third outer peripheral surface of the laminate, and a pair of holding portions that cover the second and fourth outer peripheral surfaces of the laminate partly. Each holding portion supports the laminate as a spring element, and the spring elements are attached in the direction of displacement of the laminate. As a result, the resonant frequency of the laminate is increased and vibration resistance is improved without increasing the parts count.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.