| 摘要 |
PROBLEM TO BE SOLVED: To reduce clogging between fins, in a heat exchanger serving as a condenser of a refrigerating device installed outside an equipment main body for an automatic vending machine or the like. SOLUTION: This heat exchanger is provided with the large number of juxtaposed plate-like fins 10, and a plurality of tubes 12 penetrating the fins 10 and having a flowing refrigerant in an inside, the fin 10 is provided with a plurality of dust deposition reducing parts 14 having an upward directed end face 15 and a downward directed end face 16 positioned in a just underside thereof, in an air flow-in side end face 13, and the whole air flow-in side end face 13 is formed into a sawtooth shape. Almost all of dusts colliding with the upward directed end face 15 out of the dusts in the air flowing in between the fins 10 goes in between the fins 10 to be passed therethrough during a flow along an inclined face thereof, and the dusts are difficult to be deposited on the downward directed end face 16 and falls down by gravity even when deposited. The downward directed end face 16 serves as a side path for an air flow to generate hardly the blinding over a long period, even when the dusts are deposited on the upward directed end face 15 during a long period to generate the blinding between fins 10. COPYRIGHT: (C)2007,JPO&INPIT
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