Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1997-02-27
1998-11-03
Picard, Leo P.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
361686, 361687, 361683, 248917, 3122081, 4399281, H05K 720
Patent
active
058318232
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to an accommodating device for a portable PC, particularly for a notebook and for peripheral devices such as a printer and telecommunications devices.
Accommodating devices for personal computers (PCs) are commercially available and are particularly designed as so-called notebooks. Mostly, the accommodating device is provided in the form of a suitcase, notably a hard-shelled file case of which one half-shell accommodates the portable PC and peripheral devices, particularly a printer, and telecommunications devices, such as a modem and a cellular phone and its base unit, respectively. Normally, when a PC and its peripheral devices are to be stored, a shaped body is used which is formed as a deep-drawn film which is resistant to bending and is provided with deepened portions and receptacles for the individual devices and the PC. Up to now, for energy supply to the peripheral devices and the PC, use has been made of a common power-supply unit which is arranged underneath the PC or, in other words, within the accommodating device. The power-supply unit is operative not only for energy supply but also works as a charging unit for charging the accumulators of the PC and the peripheral devices in as far as these are accumulator-operated, as is the case, e.g., with the printer. Practice has revealed that heat may often build up within the accommodating device, which is caused by the PC itself and the peripheral devices, but also by the power-supply unit.
SUMMARY OF THE INVENTION
It is an object of the invention to provide an accommodating device for a portable PC and its peripheral devices wherein, even in case of the tightest possible accommodation of the PC and its peripheral devices, problems caused by overheating are precluded.
According to the invention, for solving the above object, an accommodating device of the initially mentioned type is provided to comprise generating the required operating voltages for the peripheral devices from the network voltage, generating the required operational voltages for the PC, the principle power-supply unit, flow.
The accommodating device according to the invention comprises a principle power-supply unit for generating the operating voltages required for the peripheral devices from the network voltage, and a separate PC power supply unit for generating the operational voltages required for the PC. Both power-supply units can be connected by a cable to the voltage network; in this mode, the PC is not switched to accumulator operation but is fed by the network voltage. If the accommodating device or, more precisely, the two power supply units are not connected to the voltage network, all devices are fed by accumulators. Further, in the inventive accommodating device, the two power-supply units are arranged underneath the PC. This is provided primarily in order to save space. Further, the inventive accommodating device is provided with a cooling air flow generator. This cooling air flow generator generates a cooling air flow for cooling the principle power-supply unit. According to the invention, the PC power supply unit is arranged to be exposed to the cooling air flow. Preferably, the cooling air flow generator is provided as a blower which is suitably accommodated in the principle power-supply unit itself. In this case, the principle power-supply unit has an air-inlet means and an air-outlet means.
In the inventive accommodating device, the PC and the PC power supply unit assigned thereto are permanently supplied with fresh air by a modular air-circulating means (cooling air flow generator). This measure offers the advantage that the waste heat of the PC is permanently discharged underneath the PC as soon as the PC is not operated by use of the accumulator but is powered by its PC power supply unit. Thereby, accumulation of heat within the accommodating device is prevented. Due to the spacesaving accommodation of the components of the principle power-supply unit and the large number of the connectible peripheral devices
REFERENCES:
patent: 5552957 (1996-09-01), Brown et al.
patent: 5704212 (1998-01-01), Erler et al.
Chervinsky Boris L.
Picard Leo P.
Veronika Schwarzinger and Christian Uitz
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