초록 ▼

A secondary battery device charging apparatus includes a number of first terminals, a pair of second terminals, a power supply circuit, a switching element and a control circuit. The secondary battery device includes an even number of secondary batteries arranged with electrodes facing in mutually o

A secondary battery device charging apparatus includes a number of first terminals, a pair of second terminals, a power supply circuit, a switching element and a control circuit. The secondary battery device includes an even number of secondary batteries arranged with electrodes facing in mutually opposite directions, a middle spacer set up between the secondary batteries, a thermistor set up at the middle spacer so as to be thermally in contact with the secondary batteries, a pair of electrodes set up at the middle spacer and a uniting member for uniting the secondary batteries together into a single item. The pair of electrodes are arranged symmetrically with respect to the mechanical center of the secondary batteries and the thermistor is connected to the pair of electrodes. When the secondary battery device is installed, the number of first terminals come into contact with each of their corresponding second battery electrodes. When the secondary battery charging device is installed, the switching element is turned on by the control circuit so that a charging current from the power supply circuit is supplied via the two first terminals which are positioned at the beginning and the end of the number of first terminals so as to charge the secondary batteries. At the time of charging, the temperature of the secondary batteries is detected from the voltage for the pair of second terminals so that when the detected temperature is not a suitable temperature for passing a current through the secondary batteries, the switching element is turned off and charging is halted.

대표청구항 ▼

A secondary battery device charging apparatus, said secondary battery device being equipped with an even number of secondary batteries arranged with electrodes facing in mutually opposite directions, a middle spacer positioned between the secondary batteries and structured to support the peripheries

A secondary battery device charging apparatus, said secondary battery device being equipped with an even number of secondary batteries arranged with electrodes facing in mutually opposite directions, a middle spacer positioned between the secondary batteries and structured to support the peripheries of the secondary batteries, a thermistor supported by the middle spacer so as to be thermally in contact with the secondary batteries, a pair of electrodes supported by the middle spacer, and uniting means for uniting the secondary batteries together into a single item, with the pair of electrodes being arranged symmetrically with respect to the mechanical center of the secondary batteries and the thermistor being connected to the pair of electrodes, said apparatus comprising: a plurality of first terminals which respectively come into contact with the electrodes of the secondary batteries when the secondary battery device is installed; a pair of second terminals which respectively connect with the pair of electrodes when the secondary battery is installed; a power supply circuit for supplying charging current to the secondary batteries; a switching element for controlling the supplying of the charging current outputted from the power supply circuit; and a control circuit, to which the output signal from the thermistor is provided, for controlling the switching element, wherein the plurality of first terminals connect the secondary batteries in series when the secondary battery device is installed, the switching element is turned on by the control circuit so that a charging current from the power supply circuit is supplied via the two first terminals which are positioned at the beginning and the end of the plurality of first terminals in such a manner so as to charge the secondary batteries when the secondary battery device is installed, and the temperature of the secondary batteries is detected from the voltage for the pair of second terminals at the time of charging in such a manner that when the detected temperature is not a suitable temperature for passing a current through the secondary batteries, the switching element is turned off and charging is halted.