Title:
CENTRIFUGAL FAN, HOUSEHOLD APPLIANCE, VOLUTE, AND COOKING UTENSIL
Document Type and Number:
WIPO Patent Application WO/2022/143328
Kind Code:
A1
Abstract:
A centrifugal fan, a household appliance, a volute, and a cooking utensil. The centrifugal fan (100) comprises: an impeller assembly (10), comprising an impeller body (11) and a hub (12), the hub (12) comprising a first lateral surface (121) and a second lateral surface (122) facing away from each other, the impeller body (11) comprising a first segment (11a) and a second segment (11b), the first segment (11a) being connected to the first lateral surface (121), the second segment (11b) being connected to the second lateral surface (122), and the diameter of the first segment (11a) and the diameter of the second segment (11b) gradually increasing in the direction running away from the hub (12); a volute (20), comprising a volute body (21) and a volute tongue (22), the volute tongue (22) being separated from the impeller assembly (10); and a motor (30) connected to the hub (12) and used for driving the impeller assembly (10) to rotate. The centrifugal fan reduces noise and increases work efficiency.
Inventors:
REN ZHIWEN (CN)
LIN JIAN (CN)
LIN JIAN (CN)
Application Number:
PCT/CN2021/140408
Publication Date:
July 07, 2022
Filing Date:
December 22, 2021
Export Citation:
Assignee:
GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD (CN)
MIDEA GROUP CO LTD (CN)
MIDEA GROUP CO LTD (CN)
International Classes:
F04D17/16; F04D29/28
Foreign References:
| CN111396356A | 2020-07-10 | |||
| CN105257598A | 2016-01-20 | |||
| CN212005949U | 2020-11-24 | |||
| CN113309714A | 2021-08-27 | |||
| CN215109673U | 2021-12-10 | |||
| CN112780599A | 2021-05-11 | |||
| JP2019090344A | 2019-06-13 | |||
| CN201771854U | 2011-03-23 | |||
| US20130011247A1 | 2013-01-10 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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