Title:
WHIRL ELIMINATING STRUCTURE, MIXED-FLOW FAN ASSEMBLY AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2021/147595
Kind Code:
A1
Abstract:
A whirl eliminating structure, a mixed-flow fan assembly and an air conditioner. The whirl eliminating structure comprises: a whirl eliminating wheel cover (20) having a through inner cavity; a whirl eliminating wheel hub (30) located in the inner cavity of the whirl eliminating wheel cover (20); and whirl eliminating blades (40) connected between the cavity wall of the inner cavity and the outer wall of the whirl eliminating wheel hub (30), wherein the intersecting interfaces of the whirl eliminating blades (40) and the whirl eliminating wheel hub (30) are blade root sections (41); the intersecting interfaces of the whirl eliminating blades (40) and the whirl eliminating wheel cover (20) are outer blade edge sections (42); the projection of a contour line of at least one of the blade root sections (41) and the outer blade edge sections (42) on a longitudinal section passing through an axis of the whirl eliminating structure comprises a drag line; and a first included angle μ1 between a tangent of the portion, corresponding to a front edge (43) of the corresponding whirl eliminating blade (40), of each drag line and the axis is greater than a second included angle μ2 between a tangent of the portion, corresponding to a tail edge (44) of the corresponding whirl eliminating blade (40), of the drag line and the axis. The whirl eliminating structure and the mixed flow fan assembly can improve the air supply performance.
Inventors:
LIU HUA (CN)
MA QUYANG (CN)
CHI XIAOLONG (CN)
SU YUHAI (CN)
ZHANG ZHIPING (CN)
XIA KAI (CN)
ZHANG BIYAO (CN)
MA QUYANG (CN)
CHI XIAOLONG (CN)
SU YUHAI (CN)
ZHANG ZHIPING (CN)
XIA KAI (CN)
ZHANG BIYAO (CN)
Application Number:
PCT/CN2020/138304
Publication Date:
July 29, 2021
Filing Date:
December 22, 2020
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F04D29/66
Foreign References:
| CN111156203A | 2020-05-15 | |||
| CN211715357U | 2020-10-20 | |||
| CN111156179A | 2020-05-15 | |||
| CN211449215U | 2020-09-08 | |||
| GB2502104A | 2013-11-20 | |||
| CN106870417A | 2017-06-20 | |||
| CN108252949A | 2018-07-06 | |||
| CN106015104A | 2016-10-12 | |||
| CN110529410A | 2019-12-03 | |||
| CN208185011U | 2018-12-04 | |||
| JPH0988897A | 1997-03-31 | |||
| US20190285085A1 | 2019-09-19 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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