Protection device for assembled cell providing equal consumption current for each battery module, and battery pack unit
US8212523B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2008 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Sep 5, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A protection device for an assembled cell including battery modules connected in series includes protection units each of which is configured to operate using a corresponding battery module as a power supply and a management unit connected to the protection units in common, the protection unit includes a measuring unit configured to measure its own consumption current to obtain measurement data, a communication unit which transmits the measurement data to a management unit and receives setting data from the management unit, a discharging unit which discharges the corresponding battery module, and a control unit configured to control the discharging unit based on the measurement data and the setting data so that a total of the consumption current and a discharging current by the discharging unit is of a constant value among the protection units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.