초록 ▼

A two-phase liquid cooling system utilizes and evaporator unit for vaporizing a liquid coolant and a condenser unit for condensing the coolant vapor. The unit is capable of operating in at least two orientations: in one orientation, the condenser is located vertically above the evaporator and conden

A two-phase liquid cooling system utilizes and evaporator unit for vaporizing a liquid coolant and a condenser unit for condensing the coolant vapor. The unit is capable of operating in at least two orientations: in one orientation, the condenser is located vertically above the evaporator and condensed coolant returns from the condenser to the evaporator under the force of gravity. In another orientation, the evaporator is located vertically above the condenser and the liquid coolant is returned to the evaporator by a stream of bubbles rising in a tube connecting the evaporator and the condenser. The stream of bubbles is produced by a small heater which is operated by a gravity controlled switch. A check valve is provided to insure that the bubble stream moves in the proper direction. The cooling system has at least one wall with sufficient flexibility that the wall expands as the coolant vapor expands thereby maintaining the internal container pressure substantially the same as the ambient environmental pressure.

대표청구항 ▼

Computer apparatus capable of operating in a first orientation and in a second orientation in an environment with an ambient pressure over a temperature range, the apparatus comprising: a heat dissipating microprocessor; a memory unit; an evaporator unit having a first thermally conductive wall in c

Computer apparatus capable of operating in a first orientation and in a second orientation in an environment with an ambient pressure over a temperature range, the apparatus comprising: a heat dissipating microprocessor; a memory unit; an evaporator unit having a first thermally conductive wall in contact with the microprocessor; a condenser unit located vertically above the evaporator unit in the first orientation and vertically below the evaporator unit in the second orientation; a first conduit connecting the evaporator unit and the condenser unit; a second conduit connecting the condenser unit to the evaporator unit to form a hermetic enclosure with an interior and an internal pressure, the condenser unit having at least one wall which is sufficiently flexible that the internal pressure remains substantially at the ambient pressure over the entire temperature range; a liquid coolant disposed within the hermetic enclosure interior, the liquid coolant having a sufficiently low boiling point that the liquid coolant is changed to a vapor by the heat dissipated from the microprocessor; and a heater operative only in the second orientation for heating a portion of the first conduit sufficiently to cause bubbles of coolant vapor to form and rise in the first conduit.