| 摘要 |
PROBLEM TO BE SOLVED: To ensure a heat transfer area by using heat exchanger fins and to reduce interference sound generated at end sections of the heat exchanger fins in a ceiling-embedded air conditioner indoor unit. SOLUTION: A heat exchanger 2 including a plurality of heat transfer tubes 11 and the plurality of thin plate-shaped fins 10, has straight sections and bent sections so that it is disposed at a downstream side in the air distributing direction in a state of surrounding an outer side of a blower 1, the thin plate-shaped fins 10 have recessed sections 12 on front edge sections positioned at an upstream side in the air distributing direction, the recessed sections 12 of the fins are disposed on positions separating from adjacent heat transfer tubes disposed in the vertical direction at the upstream side in the air distributing direction, bottom faces of the recessed sections are positioned at the upstream side in the air distributing direction, with respect to the heat transfer tubes disposed in the vertical direction at the upstream side in the air distributing direction, and as the fins 10 having the recessed sections 12 are disposed on the straight sections or the bent sections, or the whole of the heat exchanger, a heat radiation area can be efficiently ensured, and the noise around the heat exchanger can be reduced. COPYRIGHT: (C)2011,JPO&INPIT
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