Cooling device of heating element and an electronic device using the same

A method of controlling a cooling device for cooling the heat generating element made of circuit or circuit element of an electronic device, which is operated in a continuous predetermined time having a heat sink thermally connected to the heat generating element;

• a heat accumulator;
• a first heat conduction means thermally connected between the heat generating element and the heat accumulator and having the direction of heat conduction from the heat generating element to the heat accumulator;
• and a second heat conduction means thermally connected between the heat accumulator and the heat sink and having the direction of heat conduction from the heat generating element to the heat accumulator, the method have the steps of;
• accumulating the exceeded heat of the heat generating element in a high load condition to the heat accumulator by the first heat transfer means,
• transferring the heat of the heat accumulator in a ordinary load condition to the heat sink by the second heat transfer means,
• and release the heat of the heat sink.

An electronic device, which is operated in a continuous predetermined time under the operating load condition varies, and having a heat generating element made of circuit or circuit element, the electronic device comprising:

• a heat sink thermally connected to the heat generating element;
• a heat accumulator;
• a first heat conduction means thermally connected between the heat generating element and the heat accumulator and having the direction of heat conduction from the heat generating element to the heat accumulator;
• and
• a second heat conduction means thermally connected between the heat accumulator and the heat sink and having the direction of heat conduction from the heat generating element to the heat accumulator;
• wherein the heat of the heat generating element is radiated from the heat sink under normal load condition and both radiating the heat of the heat generating element from the heat sink and transfer the heat of the heat generating element to the heat accumulator by the first heat conduction means under high load condition.

A method of cooling an electronic device having the heat generating element made of circuit or circuit element of the electronic device which is operated in a continuous predetermined time and the load condition varies during the operation, in which the electronic device comprises a heat sink thermally connected to the heat generating element;

• a heat accumulator;
• a first heat conduction means thermally connected between the heat generating element and the heat accumulator and having the direction of heat conduction from the heat generating element to the heat accumulator;
• and a second heat conduction means thermally connected between the heat accumulator and the heat sink and having the direction of heat conduction from the heat generating element to the heat accumulator,
• the method comprising the steps of;
• transferring the excess heat of the heat generating element not released in the heat sink to the heat accumulator by the first heat conduction means under high load condition;
• releasing the heat of the heat accumulator from the heat sink and radiating the heat of the heat generating element from the heat sink simultaneously under normal load condition;
• controlling the air volume of the cooling fan according to the heat of the heat generating element under the normal load condition in which the heat amount is measured by the accumulated heat measuring means;
• and
• releasing the heat of the heat accumulator through the heat sink for a predetermined time.