Semiconductor cooling device and method of controlling same
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsMasao Nakano, Hiromasa Ashitani
Life of this patent
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Abstract
A semiconductor cooling device includes at least one cold plate for cooling a semiconductor element, a condenser adapted to be cooled by a fan, and a refrigerant pump. The refrigerant pump is electrically connected to an inverter controller that controls the number of revolutions of the refrigerant pump.
Claims4
A semiconductor cooling device comprising:
- a cold plate for cooling a semiconductor element;
- a condenser;
- a refrigerant pump, said cold plate, condenser and refrigerant pump being fluid connected in series with each other to define a refrigerating cycle;
- a fan for cooling the condenser;
- and
- an inverter controller for controlling number of revolutions of the refrigerant pump.
A method of controlling a semiconductor cooling device including a cold plate for cooling a semiconductor element, a condenser, and a refrigerant pump, all of which are fluid connected in series with each other to define a refrigerating cycle, and also including a fan for cooling the condenser, an inverter controller for controlling number of revolutions of the refrigerant pump, and a temperature sensor fitted to the cold plate, said method comprising:
- increasing the number of revolutions of the refrigerant pump when the temperature sensor detects that the temperature of the cold plate is higher than a predetermined temperature;
- and
- decreasing the number of revolutions of the refrigerant pump when the temperature sensor detects that the temperature of the cold plate is lower than the predetermined temperature.
A method of controlling a semiconductor cooling device including a cold plate for cooling a semiconductor element, a condenser, and a refrigerant pump, all of which are fluid connected in series with each other to define a refrigerating cycle, and also including a fan for cooling the condenser and an inverter controller for controlling number of revolutions of the refrigerant pump, said method comprising:
- decreasing the number of revolutions of the refrigerant pump after the temperature of the cold plate has been stabilized;
- and
- increasing the number of revolutions of the refrigerant pump by 10 to 20% in the event of an abrupt increase of the temperature of the cold plate.
Dependencies are inferred from the claim text.