| 摘要 |
An elongate tubular refrigerant container 2 has a barrier 5 which partitions its internal space into a heat-generating member side path 2b and a heat radiating path 2c, so that refrigerant vapor evaporated by the heat-generating member 3 is separated from the condensate that circulates after being cooled in the heat radiating section 4. The barrier 5 includes a heat insulating space 5a which does not communicate with the internal space 2a that stores a refrigerant. The refrigerant is prevented from boiling in the heat radiating section side path 2c and the condensate that circulates from the heat radiating section 4 and the refrigerant vapor do not collide violently with each other because the heat of the refrigerant vapor in the heat-generating member side path 2b is prevented from being transferred to the liquid refrigerant in the heat radiating section side path 2c.
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