Title:
IMPELLER, MIXED FLOW BLOWER, AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2021/147605
Kind Code:
A1
Abstract:
An impeller, a mixed flow blower, and an air conditioner. The impeller comprises an impeller cover (3), a hub (1), and a plurality of blades (2); the impeller cover (3) comprises an axially through inner cavity, and the inner cavity is provided with an air inlet end and an air outlet end which are oppositely provided; the hub is provided in the impeller cover; the plurality of blades are connected between an inner surface of the impeller cover and an outer surface of the hub, the blades are twisted blades, the surface of each twisted blade comprises a first surface section (2A), a second surface section (2B), and a third surface section (2C), and the second surface section is located between the first surface section and the third surface section and is recessed towards one side of the impeller along a rotating direction with respect to the first surface section and the third surface section. The twisted blades are of a double-twisted structure, and the surfaces of the blades extend in a plurality of directions, so that the blades effectively adapt to change of airflow at multi-direction speeds, flowing separation of airflow in an internal flow channel is reduced, production of a large amount of eddy current is avoided, and then the airflow flowing condition of the whole blower is optimized.
Inventors:
TAN JIANMING (CN)
ZHANG ZHIPING (CN)
MA QUYANG (CN)
CHI XIAOLONG (CN)
SU YUHAI (CN)
ZHANG BIYAO (CN)
XIA KAI (CN)
ZHANG ZHIPING (CN)
MA QUYANG (CN)
CHI XIAOLONG (CN)
SU YUHAI (CN)
ZHANG BIYAO (CN)
XIA KAI (CN)
Application Number:
PCT/CN2020/138941
Publication Date:
July 29, 2021
Filing Date:
December 24, 2020
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F04D29/26; F04D29/66
Foreign References:
| CN111441984A | 2020-07-24 | |||
| CN211715393U | 2020-10-20 | |||
| CN111156191A | 2020-05-15 | |||
| CN211449177U | 2020-09-08 | |||
| CN211501072U | 2020-09-15 | |||
| CN111255738A | 2020-06-09 | |||
| CN2345758Y | 1999-10-27 | |||
| CN2345758Y | 1999-10-27 | |||
| CN1573089A | 2005-02-02 | |||
| US5685696A | 1997-11-11 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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