Battery equalizing system
First Claim
1. A discharger comprising a housing having a recess therein to receive a battery cassette holding therein a plurality of series connected cells, cassette engagement terminals, at least one of which being movably provided in said recess, a plurality of cell contact terminals each cell contact terminal contacting a single terminal from a respective one of the series connected cells held in said cassette, and self-discharge circuits formed between said terminals for permitting the discharge of the cells therethrough and for stopping the discharge of current at a predetermined voltage level which is lower than the charged voltage across each cell, inclusive of zero voltage, said self-discharge circuits each including, in series, a load circuit and a voltage controlled switch conducting above said predetermined voltage and non-conducting below said predetermined voltage, and, further comprising a fan for removing heat developed in said self-discharge circuits during discharge of cells, said fan being driven by the terminal voltage of the cassette mounted in the recess and stopping when the cells stop discharging.
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Accused Products
Abstract
In reference to a chargeable battery of the type which can be charged rapidly and afford big discharge current when in use, a battery equalizing system is disclosed for equally charging each component cell of the battery to avoid inverse charging and deterioration due to it.
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Citations
1 Claim
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1. A discharger comprising a housing having a recess therein to receive a battery cassette holding therein a plurality of series connected cells, cassette engagement terminals, at least one of which being movably provided in said recess, a plurality of cell contact terminals each cell contact terminal contacting a single terminal from a respective one of the series connected cells held in said cassette, and self-discharge circuits formed between said terminals for permitting the discharge of the cells therethrough and for stopping the discharge of current at a predetermined voltage level which is lower than the charged voltage across each cell, inclusive of zero voltage, said self-discharge circuits each including, in series, a load circuit and a voltage controlled switch conducting above said predetermined voltage and non-conducting below said predetermined voltage, and, further comprising a fan for removing heat developed in said self-discharge circuits during discharge of cells, said fan being driven by the terminal voltage of the cassette mounted in the recess and stopping when the cells stop discharging.
Specification
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- Resources
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Current AssigneeMabuchi Motor Company Limited
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Original AssigneeMabuchi Motor Company Limited
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InventorsMabuchi, Kenichi, Komatsu, Kogiro
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Primary Examiner(s)Miller, J D
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Assistant Examiner(s)Hickey, Robert J.
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Application NumberUS05/458,875Time in Patent Office890 DaysField of Search320/13, 320/18, 320/53, 320/57, 320/43, 320/40, 320/2US Class Current320/107CPC Class CodesH02J 7/0016 using shunting, discharge o...Y10S 320/18 Indicator or display
