INDOOR UNIT AND AIR-CONDITIONING DEVICE

WIPO Patent Application WO/2018/029876

A1

The purpose of the present invention is to improve the performance of an air-conditioning device by suppressing the occurrence of vortexes in the space of a drain pain in a corner part of an approximately polygonal heat exchanger, viewed in a cross section perpendicular to the rotary spindle of a centrifugal fan in an indoor unit of the air-conditioning device. In order to achieve this purpose, this indoor unit is equipped with: a centrifugal fan positioned inside a housing; a heat exchanger that is provided so as to surround the periphery of the centrifugal fan, and that has an approximately polygonal shape in the perpendicular cross section with respect to the rotary spindle of the centrifugal fan; and a drain pain that is provided beneath the heat exchanger, and that retains water produced as a result of condensation on the heat exchanger. The drain pan comprises: a water retaining unit for retaining water; a raised part that rises up from the water retaining unit; and a corner space that is formed on the inside of the approximately polygonal heat exchanger, and which is formed between the heat exchanger and the raised part. The corner space is provided with a resistance member that blocks the flow of air from the centrifugal fan to the heat exchanger.

SATO DAIWA (JP)
TSUCHIHASHI KAZUHIRO (JP)
OBARA HIDESHI (JP)

PCT/JP2017/005287

February 15, 2018

February 14, 2017

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HITACHI JOHNSON CONTROLS AIR CONDITIONING INC (JP)

F24F13/22; F24F1/00; F24F13/32

JP2004156885A	2004-06-03
JP2013221687A	2013-10-28
JP2014190655A	2014-10-06
JPH11344237A	1999-12-14
JPH09236277A	1997-09-09
JP2011252672A	2011-12-15
JP2016142431A	2016-08-08

POLAIRE I.P.C. (JP)

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