Charging apparatus with contact end sliding in accordance with weight of secondary battery
First Claim
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1. A charging apparatus comprising:
- a case;
a constant current circuit having a plurality of output terminals for supplying charging current with a plurality of different current values, respectively;
a plurality of contact pads respectively connected to said output terminals of said constant current circuit; and
a conductive elastic lead having one of ends which slides in response to installation of a secondary battery in said case to contact one of the plurality of contact pads, wherein a portion of said conductive elastic lead is connected to said secondary battery to supply the charging current from said constant current circuit to said secondary battery via the contacting one of the plurality of contact pads.
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Abstract
In a charging apparatus, a constant current circuit has a plurality of output terminals for supplying charging current with a plurality of current values, respectively. A plurality of contact pads connected to the output terminals of the constant current circuit. A conductive elastic lead has one of ends which slides in response to installation of a secondary battery in the case to contact one of the plurality of contact pads. Thus, a portion of the conductive elastic lead is connected to the secondary battery to supply the charging current from the constant current circuit to the secondary battery via the contacting one of the plurality of contact pads.
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Citations
13 Claims
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1. A charging apparatus comprising:
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a case; a constant current circuit having a plurality of output terminals for supplying charging current with a plurality of different current values, respectively; a plurality of contact pads respectively connected to said output terminals of said constant current circuit; and a conductive elastic lead having one of ends which slides in response to installation of a secondary battery in said case to contact one of the plurality of contact pads, wherein a portion of said conductive elastic lead is connected to said secondary battery to supply the charging current from said constant current circuit to said secondary battery via the contacting one of the plurality of contact pads. - View Dependent Claims (2, 3, 4, 5)
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6. A charging apparatus comprising:
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a case; constant current supplying means for supplying, via a plurality of contact pads, charging current with a plurality of different current values, respectively; and a first conductive elastic lead having one of ends slided in accordance with weight of a secondary battery to contact one of the plurality of contact pads, when said secondary battery is installed in said case, wherein a portion of said first conductive elastic lead is connected to said secondary battery to supply the charging current from said constant current supplying means to said secondary battery. - View Dependent Claims (7, 8, 9, 10)
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11. A method for charging a secondary battery in a charging apparatus, comprising the steps of:
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installing a first secondary battery having a first weight in a case; sliding one of ends of a first conductive lead in response to the installation of the first secondary battery; contact the sliding one end with one of a plurality of contact pads; and supplying a charging current with a first predetermined current value to said first secondary battery via said one contact pad. - View Dependent Claims (12, 13)
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Specification