Title:
MIXED-FLOW FAN AND AIR-DUCT TYPE AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2023/226366
Kind Code:
A1
Abstract:
A mixed-flow fan and an air-duct type air conditioner comprising same. The mixed flow fan comprises a volute (1), an impeller (2) and a rear guide vane structure. The volute (1) is provided with an air outlet (12), and the impeller (2) is arranged inside the volute (1). The rear guide vane structure is arranged between the air outlet (12) and the impeller (2); a gap (13) is provided between the rear guide vane structure and the impeller (2); and the ratio of the height H of the gap (13) to the height H2 of the impeller (2) ranges from 0.18 to 0.24. In the mixed-flow fan, by defining the gap between the rear guide vane structure and the impeller, the guide vane structure can effectively guide the air output of the impeller, thereby improving the efficiency of the mixed-flow fan.
Inventors:
DONG MINGZHU (CN)
LIU HUA (CN)
LIU YU (CN)
DING SHAOJUN (CN)
LIU HUA (CN)
LIU YU (CN)
DING SHAOJUN (CN)
Application Number:
PCT/CN2022/137474
Publication Date:
November 30, 2023
Filing Date:
December 08, 2022
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F04D29/40; F04D29/44; F04D29/66; F24F1/0018
Foreign References:
| CN114909333A | 2022-08-16 | |||
| CN217421627U | 2022-09-13 | |||
| CN110805568A | 2020-02-18 | |||
| CN212177508U | 2020-12-18 | |||
| CN215595986U | 2022-01-21 | |||
| US20160290348A1 | 2016-10-06 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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