Title:
MIXED-FLOW FAN, AND DUCT-TYPE AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2023/226402
Kind Code:
A1
Abstract:
A mixed-flow fan and a duct-type air conditioner. The mixed-flow fan comprises: an outer shell (10) provided with an air inlet (11) and an air outlet (12); an inner shell (20) arranged in the outer shell (10), an air duct (13) bringing the air inlet (11) into communication with the air outlet (12) being formed between the outer shell (10) and the inner shell (20); and an impeller, a hub (30) of the impeller being rotatably disposed on the inner shell (20), and an outer surface of the hub (30) being connected to an outer surface of the inner shell (20) to form a first flow guide surface (40). In the mixed-flow fan, the profile of the first flow guide surface (40) is modified, which can effectively increase dynamic pressure of airflow in the air duct and better convert the dynamic pressure into static pressure, so as to increase the air output amount, thereby improving the performance of the mixed-flow fan.
Inventors:
DING SHAOJUN (CN)
CHI XIAOLONG (CN)
ZHANG YIFAN (CN)
CHI XIAOLONG (CN)
ZHANG YIFAN (CN)
Application Number:
PCT/CN2022/140620
Publication Date:
November 30, 2023
Filing Date:
December 21, 2022
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F04D29/40; F24F1/0018
Foreign References:
| CN114922852A | 2022-08-19 | |||
| CN217582590U | 2022-10-14 | |||
| CN215595986U | 2022-01-21 | |||
| CN211715357U | 2020-10-20 | |||
| CN111120417A | 2020-05-08 | |||
| CN110374900A | 2019-10-25 | |||
| JP2011226654A | 2011-11-10 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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