Cooling apparatus using boiling and condensing refrigerant

Details Cooling apparatus using boiling and condensing refrigerant Cooling apparatus using boiling and condensing refrigerant

1997-02-27

1999-02-16

Lazarus, Ira S.

Heat exchange

Intermediate fluent heat exchange material receiving and...

Liquid fluent heat exchange material

16510433, 257715, 361700, F28D 1500

Patent

active

058710434

ABSTRACT:
An IGBT module has an IGBT element. Within a refrigerant tank is sealed refrigerant. On the bottom part of the refrigerant tank is provided the IGBT module. The heat emitted from the IGBT element is absorbed by the refrigerant by the transmission of the boiling heat emitted from the IGBT element and the refrigerant is gasified by the absorbed heat. A radiation tube is communicated with the refrigerant tank at one end and blocked at the other end. Within the radiation tube is disposed corrugated inner fins, and an upper space, refrigerant passages through for guiding the refrigerant from the refrigerant tank into the upper space, and thin holes in which a liquid pooling part for returning the refrigerant from the upper space into the refrigerant tank is formed are dividingly formed respectively.

REFERENCES:
patent: 4549603 (1985-10-01), Shirai et al.
patent: 4944344 (1990-07-01), Crowe
patent: 4949164 (1990-08-01), Ohashi et al.
patent: 5076351 (1991-12-01), Munekawa et al.

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