VERY LOW TEMPERATURE COOLING DEVICE

摘要

PROBLEM TO BE SOLVED: To make heating value large and stably operate the device by effectively removing generated heat of a part of a power source section which is limited in its spatial arrangement. SOLUTION: This very low temperature cooling device is constructed so as to partition the inside of a casing 1 into a first space 3 for flowing of outside air and a second space 4 having a closed rain proof structure and to store a compressor 11 and an expander 12 inside a wind tunnel inner space 3a of the first space 3 while a vacuum vessel 13 for storing an object to be cooled and electrical components such as a power source 15, an amplifier 16 into the second space 4. A heat receiving block 20 is thermally connected to a fixing plate 17A of the amplifier 16 which largely generates heat. A heat radiating block 21 is arranged on the first space so as to construct part of the wall surface of a wind channel. A heat transfer body 22 is built in a pipe between the heat receiving block 20 and the heat radiating block 21. COPYRIGHT: (C)2004,JPO&NCIPI