| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a defrosting device achieving high defrosting effect by promoting discharge of frost scraped off by a rotary brush to the outside of fins. Ž<P>SOLUTION: In this defrosting device comprising a brush defrosting means 4 for scraping off and removing the frost Fa formed on fin surfaces 2c by vertically moving the rotary brush 41 along a ventilation face 1a of a heat exchanger 1, the rotary brush 41 is constituted to be rotated to a front side from a back side in the traveling direction at a heat exchanger 1 side. According to this constitution, as the rotary brush 41 is constantly rotated from the back side in the traveling direction to the front side at the heat exchanger 1 side in both of its upward movement and downward movement, the frost scraped off from the fin surfaces 2c by the rotary brush 41 receives the action to be scraped out to the outside of the fins from between the fins by the rotating force of the rotary brush 41. As a result, the amount of frost Fb remaining on the fin surfaces 2c is reduced as small as possible, and high defrosting effect is obtained, thus a heat exchanging capacity of the heat exchanger 1 is kept at a high level. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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