Heat dissipating system and method

Abstract

A heat dissipating system includes: a heat-absorbing unit having at least one cavity body adapted to contact a heat source, and a working fluid received in the cavity body; a condenser to condense the working fluid; and a tubing unit connected fluidly to the condenser and the heat-absorbing unit. The working fluid flows through the tubing unit to circulate from the condenser to the heat-absorbing unit by gravity and from the heat-absorbing unit to the condenser by natural convection. The tubing unit forms a closed circulating loop with the heat-absorbing unit and the condenser.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority of Taiwanese Application No. 095136005, filed on Sep. 28, 2006.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The invention relates to heat dissipation, more particularly to a heat dissipating system and method.[0004]2. Description of the Related Art[0005]Referring to FIG. 1, a liquid-cooling heat dissipating system, as disclosed in Taiwanese Publication No. M295424, includes a heat sink 11 for exchanging heat with external cold air by convection, a thermoelectric cooler 12, a pressure-increasing pump 13 to circulate a working fluid within the system, a liquid-cooling connector 14 in contact with a heat source 2, three input pipes 15 for interconnecting the heat sink 11, the thermoelectric cooler 12, the pump 13, and the liquid-cooling connector 14 in series, an output pipe 16 connected fluidly to the heat sink 11 and the liquid-cooling connector 14, and a fan 17 for directing a current of ...

AI Technical Summary

Benefits of technology

[0009]Therefore, the object of the present invention is to provide a heat dissipating system that can reduce noise to a minimum and that can effectively enhance heat dissipation. The present invention also provides a method for dissipating heat from a heat source. According to one aspect of this invention, a heat dissipating system comprises: a heat-absorbing unit having at least one cavity body adapted to contact a heat source, and a working fluid received in the cavity body; a condenser to condense the working fluid; and a tubing unit connected fluidly to the condenser and the heat-absorbing unit. The working fluid flows through the tubing unit to circulate from the condenser to the heat-absorbing unit by gravity and from the heat-absorbing unit to the condenser by natural convection. The tubing unit forms a closed circulating loop with the heat-absorbing unit and the condenser.

Problems solved by technology

1. Since the aforementioned liquid-cooling heat dissipating system relies on the pressure-increasing pump 13 to circulate the working fluid, the system not only has more components, is more costly, and is more noisy, but also generates more heat itself due to the pressure-increasing pump 13. This runs counter to efforts at reducing the temperature of the working fluid in the system and, therefore, reduces the cooling efficiency of the system.

2. If the aforementioned working fluid is water, the water will freeze when the system is used in a cold area with a temperature lower than 0° C., thereby rendering the system useless. Further, if there is water leakage in the system, circuitry in the heat source 2 and / or elements of the system itself may be destroyed.

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