Voltage-switching mechanism for a battery charger for charging batteries with different volt ratings
US5065082A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 1990 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Jul 6, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00047
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A voltage-switching mechanism for a battery charger for charging batteries with different voltage ratings includes a charging hole provided in a battery charger, having a shape similar to a shape of each of first and second batteries to be charged, and having a side opening. The voltage-switching mechanism further includes a guide groove provided in the charging hole and having a portion which forms part of the side opening, a voltage selector connected to the side opening of the charging hole and partly projecting into the guide groove, a voltage switch having an actuating element and normally connected to a second secondary terminal of a transformer with a voltage equal to the voltage rating of the second battery, a first guide portion projecting from the first battery, and a second guide portion projecting from the second battery. When the first or second battery is inserted in the guide groove, the first or second guide portion is introduced into the guide groove to ensure that the inserted battery is correctly oriented in the charging hole. The first guide portion has such a shape that, when it is introduced into the guide groove, it makes contact with the voltage selector, bu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.