Title:
VACUUM CLEANER
Document Type and Number:
WIPO Patent Application WO/2022/110571
Kind Code:
A1
Abstract:
A vacuum cleaner, comprising a main machine device (200) and a cyclone separation device (100). The cyclone separation device (100) comprises a housing (130) and a cyclone separation assembly, wherein a first dust chamber (151) is formed between the cyclone separation assembly and an inner side wall (130A) of the housing (130); the cyclone separation assembly comprises a first cyclone unit (110) and a second cyclone unit (120), and a second dust chamber (152) is arranged in the second cyclone unit (120); the second cyclone unit (120) comprises a base (121) and an annular air grid (122) connected to the base (121); the annular air grid (122) comprises a top plate (122B), blades (122C) and an airflow guide member (122D) arranged on the outer periphery of the blades (122C), wherein the top plate (122B) is connected to the first cyclone unit (110), a plurality of blades (122C) are provided, the plurality of blades (122C) are connected to the top plate (122B) in a ring shape, and filter ports (122A, 122A1, 122A2) are formed between adjacent blades (122C); the second dust chamber (152) is arranged in the base (121), and the first dust chamber (151) is in communication with the second dust chamber (152) by means of the filter ports (122A, 122A1, 122A2) of the annular air grid (122); when air flows (41, 42, 43) spirally flow in the first dust chamber (151), at least some of the air flows (41, 42, 43) enters the second dust chamber (152) by means of the filter ports (122A, 122A1, 122A2), and at least some of the air flows (41, 42, 43) moves towards the bottom of the first dust chamber (151) under the blocking of the airflow guide member (122D).
Inventors:
ZHANG MINGSHUN (CN)
YAN YONGHAO (CN)
DU JIA (CN)
LOU DECHAO (CN)
YAN YONGHAO (CN)
DU JIA (CN)
LOU DECHAO (CN)
Application Number:
PCT/CN2021/080791
Publication Date:
June 02, 2022
Filing Date:
March 15, 2021
Export Citation:
Assignee:
KINGCLEAN ELECTRIC CO LTD (CN)
International Classes:
A47L9/16
Foreign References:
| US20090133370A1 | 2009-05-28 | |||
| CN105555178A | 2016-05-04 | |||
| CN103607938A | 2014-02-26 | |||
| CN101023856A | 2007-08-29 | |||
| CN108403002A | 2018-08-17 | |||
| CN110507242A | 2019-11-29 | |||
| CN105902240A | 2016-08-31 | |||
| CN1792314A | 2006-06-28 | |||
| CN1969736A | 2007-05-30 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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