Uninterruptible power supply
US6507168B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2002 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Mar 27, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery of an uninterruptible power supply unit 1a is configured by at least two batteries (a first battery 2 and a second battery 21a). A control circuit 12a judges opened/closed states of a first cover 6a and a second cover 25a on the basis of information from a first cover-opening detecting device 7a and a second cover-opening detecting device 11a. When the first cover 6a is opened, a first switch 8 which connects a charge and discharge circuit 3 to the first battery 2 is opened, and, when the second cover 25a is opened, a second switch 10 which connects the charge and discharge circuit 3 to the second battery 21a is opened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.