Title:
LOW-NOISE ROTATIONAL-FLOW AIR DUCT STRUCTURE AND FAN FILTER UNIT
Document Type and Number:
WIPO Patent Application WO/2024/051177
Kind Code:
A1
Abstract:
A low-noise rotational-flow air duct structure. The air duct structure comprises a bottom plate (4.1) and four outer side baffles (4.2), the four outer side baffles (4.2) being arranged along the edge of the bottom plate (4.1). A tail portion and a head portion of each two adjacent outer side baffles (4.2) are spaced apart to form an air outlet, and the tail portion of a baffle of each two adjacent outer side baffles (4.2) exceeds the head portion of the other baffle. Moreover, both the head end and the tail end of each outer side baffle are of an arc-shaped structure; airflows blown out from the air outlets form a rotational-flow structure; the blown-out air flow direction of each air outlet is tangent to the inner wall of a case body. The structure can meet the market requirement of customers for ultra-silence, and the installation is more convenient. In addition, the present invention also relates to a fan filter unit having the air duct structure.
Inventors:
YAP WEEKEONG (CN)
CHEN LING (CN)
JIAO YE (CN)
FAN CHAOJUN (CN)
LIU HONGWU (CN)
CHEN LING (CN)
JIAO YE (CN)
FAN CHAOJUN (CN)
LIU HONGWU (CN)
Application Number:
PCT/CN2023/090337
Publication Date:
March 14, 2024
Filing Date:
April 24, 2023
Export Citation:
Assignee:
MAYAIR TECH CHINA CO LTD (CN)
International Classes:
F24F13/08; F24F13/24; F24F13/28
Domestic Patent References:
| WO2017011985A1 | 2017-01-26 |
Foreign References:
| JPH062875A | 1994-01-11 | |||
| CN108224727A | 2018-06-29 | |||
| CN104428595A | 2015-03-18 | |||
| CN201954718U | 2011-08-31 |
Attorney, Agent or Firm:
NANJING TIANHUA PATENT AGENT CO., LTD. (CN)
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