Checking method of connection between secondary battery and battery charger and checking device
US5751136A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1996 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | Nov 5, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/16
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An object of the invention is to propose a judgment method and device for connection between a secondary battery and a battery charger, in which it is unnecessary to use special wiring or other elements for the judgment. A battery charger A includes charging unit 11 for supplying electric current to the secondary battery B through a connector 6, and a charge-control unit 10 for controlling the charging unit 11. The secondary battery B includes a temperature sensing element 5 for sensing temperature of the secondary battery B. The temperature sensing element 5 has terminals, one of which is connected to a direct current power supply of the battery charger A via the connector 6 when the connection is secured. The charge-control unit 10 is connected to one of the terminals of the temperature sensing element 5, so that the output voltage of the temperature sensing element 5 is input to the charge-control unit 10 when the connection is secured. Furthermore, the charge-control unit 10 stores a standard range of the voltage of the temperature sensing element 5 and decides that the connection is not secured when the voltage input to the charge-control unit 10 is out of the standard range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.