Battery pack charger having a fail-safe heat-sensitive switch fo

Details Battery pack charger having a fail-safe heat-sensitive switch fo Battery pack charger having a fail-safe heat-sensitive switch fo

1998-02-27

1999-05-04

Hecker, Stuart N.

Electricity: battery or capacitor charging or discharging

Battery or cell charging

With thermal condition detection

320113, H02J 700

Patent

active

059007192

ABSTRACT:
A battery pack charger has an external frame provided with an insertion slot for inserting a battery pack. A charging terminal and a charging control circuit are housed in the external frame. A heat-sensitive switch is provided between the charging terminal and the charging control circuit. A lead wire is provided between the charging terminal and the heat-sensitive switch. The lead wire has a length appropriate for not losing the effect of heat transferred along the lead wire. The battery pack charger is capable of reliably charging a battery pack without the occurrence of overcharge, even if the battery pack is not provided with a heat-sensitive switch.

REFERENCES:
patent: 5689173 (1997-11-01), Oosaki et al.

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