The dew condensation restrictive measure and rise being the dew condensation restrictive measure which

摘要

PROBLEM TO BE SOLVED: To provide a dew condensation suppression device for avoiding breakage of a pressure adjustment part for adjusting a pressure in a closed space, and improving the lifetime of the pressure adjustment part.;SOLUTION: This dew condensation suppression device 3 for suppressing generation of dew condensation in the closed space 5 whose internal pressure is heightened and lowered, includes the pressure adjustment part 18 for mitigating fluctuation of the internal pressure of the closed space 5 by allowing the air to flow in from the closed space 5 following the rise of the internal pressure, and by allowing the air to flow out into the closed space 5 in company with decline of the internal pressure; and a duct 20 for communicating the closed space 5 with the pressure adjustment part 18. The duct 20 has a shape for radiating heat so that the air temperature becomes lower than a heat-resistant temperature when the air having a temperature exceeding the heat-resistant temperature of a material constituting the pressure adjustment part 18 flows in from the closed space 5.;COPYRIGHT: (C)2010,JPO&INPIT