Electricity: electrical systems and devices – Safety and protection of systems and devices – Circuit interruption by thermal sensing
Reexamination Certificate
2005-07-12
2005-07-12
Leja, Ronald (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Circuit interruption by thermal sensing
C361S093800
Reexamination Certificate
active
06917505
ABSTRACT:
A protective circuit for a secondary battery is formed with a heater and a thermistor that are connected in parallel, and a main fuse is connected in series with the parallel circuit. In a secondary battery equipped with this protective circuit, a charging/discharging current passes through the protective circuit and is limited by the operation of the thermistor when the voltage applied during abnormal conditions is relatively low. On the other hand, the current will cause the main fuse to blow when the voltage during abnormal conditions is high.
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Furuta Kazutaka
Iwasaki Norikazu
Kawazu Masami
Tamura Hisaya
Leja Ronald
Oliff & Berridg,e PLC
Sony Chemicals Corp.
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