Power-on protective structure for expansion cards of portable co

Details Power-on protective structure for expansion cards of portable co Power-on protective structure for expansion cards of portable co

1997-10-15

1999-07-13

Sheikh, Ayaz R.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

361728, 361736, H05K 500, H05K 700, H05K 114

Patent

active

059235373

ABSTRACT:
A power-on protective structure for expansion cards installed in a portable computer or the like is provided. The power-on protective structure allows the replacement of the expansion card currently installed in the portable computer to be carried out only when the power supply to the expansion card is disconnected so that the data stored in the expansion card will not be damaged or lost due to inadvertent detachment of the expansion card from the portable computer while the power is still on. The power-on protective structure includes a casing; a battery compartment formed in the casing for accommodating at least one battery therein; a receptacle formed in the casing for accommodating an expansion card therein; a first cover for covering the battery compartment; and a second cover for covering the receptacle. The second cover is formed with a stopper portion which is inserted and positioned in the battery compartment when the second cover is positioned on the receptacle in such a manner that the stopper portion is impeded by the battery installed in the battery compartment, preventing the second cover from being detached from position unless the battery in the battery compartment is first removed. With the foregoing power-on protective structure, the power is always off when replacing the expansion card in the portable computer.

REFERENCES:
patent: 4894792 (1990-01-01), Mitchell et al.
patent: 5422784 (1995-06-01), Wakahara et al.

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