| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid-cooled heat exchanger capable of easily charging working fluid to the interior of a hollow tabular member, and easily providing the interior with a prescribed vacuum state, and to provide a working fluid sealing method capable of easily charging the working fluid to the interior of hollow tabular member and degassing the same. SOLUTION: In this liquid-cooled heat exchanger, a groove portion 7 connected to an evaporating portion 5 and a condensing portion 6, is formed on the hollow interior 4 having a sealed structure by a plate-like container 2 and a crowned member 3, and the working fluid is sealed in the hollow interior 4. The container 2 or the crowned member 3 is provided with a through hole 10 for communicating the hollow interior 4 and the external, and the through hole 10 is constituted to allow a working fluid charging means and a vacuum deairing means to be connected to the hollow interior 4. The working fluid is charged from the through hole 10 by the working fluid charging means, then the gassing means is connected to the through hole 10 to vacuumize the hollow interior 4, and the through hole 10 is sealed by the sealing means in a state of connecting the deairing means, thus the hollow interior 4 in which the working fluid is charged is kept in a vacuum state. COPYRIGHT: (C)2007,JPO&INPIT
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