Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1990-07-06
1991-11-12
Stephan, Steven L.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 23, H01H 1046
Patent
active
050650823
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, but the second guide portion has such a shape that, when it is introduced into the guide groove, it makes no contact with the voltage selector.
REFERENCES:
patent: 4141616 (1979-02-01), Gottlieb
patent: 4214197 (1980-07-01), Mann et al.
patent: 4609861 (1986-09-01), Inaniwa et al.
patent: 4873479 (1989-10-01), Iimura et al.
Makita Electric Works Ltd.
Peckman Kristine
Stephan Steven L.
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