Title:
MIXED FLOW FAN AND DUCTED AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2023/226379
Kind Code:
A1
Abstract:
A mixed flow fan and a ducted air conditioner. The mixed flow fan comprises: a volute (1), an air outlet (12) being formed in the volute; an impeller (2), the impeller being arranged in the volute; and an inner shell (4), the inner shell being arranged between the impeller and the air outlet, an annular air duct (13) being formed between the outer surface of the inner shell and the inner surface of the volute, and the width of the annular air duct being gradually increased in a direction from the impeller to the air outlet. According to the mixed flow fan and the ducted air conditioner, the width of an annular flow channel is gradually increased to adjust a static pressure of wind output of the impeller and airflow velocity, such that the wind output effect of the mixed flow fan is effectively improved, the optimal heat exchange effect can be achieved in a waterfall type refrigeration mode and a rapid heating mode of the ducted air conditioner, and meanwhile, a rear guide vane structure is expanded along with the increase of the width of the annular flow channel, thereby guaranteeing the adjustment effect of the rear guide vane structure on the wind output of the impeller.
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Inventors:
TAN JIANMING (CN)
DING SHAOJUN (CN)
XIA KAI (CN)
CHI XIAOLONG (CN)
ZHANG YIFAN (CN)
DING SHAOJUN (CN)
XIA KAI (CN)
CHI XIAOLONG (CN)
ZHANG YIFAN (CN)
Application Number:
PCT/CN2022/138397
Publication Date:
November 30, 2023
Filing Date:
December 12, 2022
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F04D29/40; F04D29/00; F04D29/66; F24F1/0018
Foreign References:
| CN217421632U | 2022-09-13 | |||
| CN114909328A | 2022-08-16 | |||
| CN211600830U | 2020-09-29 | |||
| CN207513872U | 2018-06-19 | |||
| CN109404334A | 2019-03-01 | |||
| CN113404711A | 2021-09-17 | |||
| CN1067296A | 1992-12-23 | |||
| CN111441984A | 2020-07-24 | |||
| CN112212491A | 2021-01-12 | |||
| CN112302995A | 2021-02-02 | |||
| CN113339299A | 2021-09-03 | |||
| CN210343778U | 2020-04-17 | |||
| US20170321705A1 | 2017-11-09 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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