Automatic temperature and humidity regulation – Ventilator type – Electrically actuated
Patent
1999-03-04
2000-07-04
Bennett, Henry
Automatic temperature and humidity regulation
Ventilator type
Electrically actuated
622592, 165 803, F24F 700
Patent
active
060826231
ABSTRACT:
A cooling system and method is provided to automatically switch a Central Processing Unit (CPU) to a proper execution mode according to a current working temperature and a current air flow value. The housing of the portable computer has a ventilation inlet and a ventilation outlet. A table is built and stored in a memory for recording a flow value and its correspondent target execution mode for various working temperatures. A thermal sensor detects a current working temperature and sends the result to a microprocessor. A pressure sensor detects a flow value by sensing air flow passing through the ventilation inlet and outlet and generating a heat dissipation signal representing the current air flow value. The microprocessor then uses the current air flow value to look up the table to find out a target execution mode according to the current working temperature and the current air flow value. After obtaining the target execution mode, the microprocessor will send a control signal to switch the CPU execution mode to the target execution mode. Accordingly, the present invention can prevent the CPU from overheating and still can optimize system performance according to the current working temperature.
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Bennett Henry
Norman Marc
Twinhead International Corp.
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