Electricity: battery or capacitor charging or discharging – Cell or battery charger structure – Having plug for a-c receptacle
Patent
1998-03-17
1999-12-07
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Cell or battery charger structure
Having plug for a-c receptacle
320107, H02J 702
Patent
active
059989645
ABSTRACT:
The invention relates to a portable appliance charging system, comprising an adapter unit and a power supply unit, comprising means for coupling the power supply unit to an electrical device, and normal mains coupling means, current being supplied to the electrical device when the power supply unit is coupled to the mains power supply. The adapter unit comprises means for electrically coupling the adapter unit to the mains coupling means of the power supply unit, and adapter mains coupling means for electrically coupling the adapter unit to the mains power supply. The power supply unit and the adapter unit also comprise corresponding releasable connection means for physically securing said adapter unit to said power supply unit to ensure continuous electrical contact therebetween. Preferably, the adapter mains coupling means comprises an adapter pin arrangement which is a conventional pin arrangement specific to a is standard plug socket. Preferably, there are provided a number of interchangeable adapter units, together comprising a set of adapter units, each adapter unit having a pin arrangement corresponding to a different regional standard. The invention has the advantage of providing a charging system which can be used in a number of different countries or regions of the globe.
REFERENCES:
patent: 4579410 (1986-04-01), Soloman
patent: 5780993 (1998-07-01), Tsang
IPR Industries, Ltd.
Luk Lawrence
Wong Peter S.
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