DEW CONDENSATION PREVENTION MECHANISM

摘要

PROBLEM TO BE SOLVED: To provide a dew condensation prevention mechanism where glass attached to a sealed housing is prevented from being dew-condensed even under a severe temperature change.

SOLUTION: The dew condensation prevention mechanism prevents dew condensation of the glass attached to a part of the sealed housing. The dew condensation prevention mechanism includes: a heat source portion; a duct portion; and a dew condensation portion. The heat source portion is arranged in the housing and consists of a heat generation source generating heat and a fan moving air warmed in the heat generation source. A fan may be installed near the dew condensation portion if necessary. The duct portion guides the air warmed in the heat source portion to a position of the glass and moves the air warmed so as to follow an inner face of the glass. The dew condensation portion is a part of an inner side of the housing with which the air passing the inner face of the glass is brought into contact, and a temperature of the part fluctuates in accordance with an outside air temperature.

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