AIR DUCT COMPONENT FOR CROSS-FLOW IMPELLER, AND AIR CONDITIONING DEVICE HAVING SAME

WIPO Patent Application WO/2022/077688

A1

An air duct component (20) for a cross-flow impeller (10), and an air conditioning device (100) having the same. The air duct component (20) comprises a first volute portion (21) and a second volute portion (22). A cross-flow air duct (23) comprises, in an axial direction of the cross-flow impeller (10), a middle air duct section (231) and two end part air duct sections (232) positioned respectively on two ends of the middle air duct section (231). The inner end of the first volute portion (21) has a volute tongue (211). A perpendicular line can be drawn through the volute tongue (211) towards the second volute portion (22). A part of the middle air duct section (231) downstream the perpendicular line is a middle air outlet duct (231a), and parts of the end part air duct sections (232) downstream the perpendicular line are end part air outlet ducts (232a), the cross-sectional area S1 of the middle air outlet duct (231a) being greater than the cross-sectional area S2 of the end part air outlet ducts (232a). The structure can mitigate the problem of abnormal sounds at the air outlet of the air duct component.

LING JING (CN)
WANG LONGFEI (CN)
LIU QIANKUN (CN)
WANG XIDONG (CN)

PCT/CN2020/129052

April 21, 2022

November 16, 2020

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CHONGQING MIDEA AIR CONDITIONING EQUIPMENT CO LTD (CN)
GD MIDEA AIR CONDITIONING EQUIPMENT CO LTD (CN)

F04D25/08; F04D29/30; F04D29/42; F04D29/44

CN108592180A	2018-09-28
CN208186765U	2018-12-04
CN104729039A	2015-06-24
CN105605685A	2016-05-25
CN2676085Y	2005-02-02
JPH08303393A	1996-11-19
JP2006336514A	2006-12-14
KR19980016950A	1998-06-05
JPH05196242A	1993-08-06

TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)

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