Title:
VACUUM CLEANER
Document Type and Number:
WIPO Patent Application WO/2022/032420
Kind Code:
A1
Abstract:
A vacuum cleaner (1), comprising: a duct collection assembly (10), a motor assembly (20), a filtering member (30), and a motor air inlet cover (40). The dust collection assembly (10) is provided with an air outlet (12); the motor assembly (20) is provided with a motor air inlet (21); the filtering member (30) is disposed between the air outlet (12) and the motor air inlet (21); the motor air inlet cover (40) is connected to the dust collection assembly (10) and the motor assembly (20); a flow guide member (50) is provided inside the motor air inlet cover (40), the opening of the flow guide member (50) close to the dust collection assembly (10) is a first opening (51), the first opening (51) being communicated with the air outlet (12), and the opening of the flow guide member (50) close to the motor assembly (20) is a second opening (52), the second opening (52) being communicated with the motor air inlet (21); the sectional area of the first opening (51) is smaller than that of the second opening (52), and the sectional area of the flow guide member (50) gradually changes in the central axis direction of the flow guide member (50). In the vacuum cleaner (1), the sectional area of the flow guide member (50) gradually changes in the central axis direction of the flow guide member (50), and energy loss is reduced, thereby reducing the power and efficiency loss of the whole machine.
More Like This:
| WO/2022/132948 | HANDHELD VACUUM DEVICE HAVING A HOOK |
| WO/2006/080947 | HAND-HELD VACUUM CLEANER WITH SELF-CLEANING FILTER AND FLOOR DUSTPAN SYSTEM |
Inventors:
LIU HAIPING (CN)
HU BIN (CN)
SHI JINXIN (CN)
HU BIN (CN)
SHI JINXIN (CN)
Application Number:
PCT/CN2020/108065
Publication Date:
February 17, 2022
Filing Date:
August 10, 2020
Export Citation:
Assignee:
SKYBEST ELECTRIC APPLIANCE SUZHOU CO LTD (CN)
International Classes:
A47L5/24; A47L9/00; A47L9/16
Foreign References:
| CN205758447U | 2016-12-07 | |||
| CN208447464U | 2019-02-01 | |||
| CN110419983A | 2019-11-08 | |||
| CN108175330A | 2018-06-19 | |||
| CN110754992A | 2020-02-07 | |||
| JPH0956644A | 1997-03-04 | |||
| US20060123590A1 | 2006-06-15 | |||
| JPH11137484A | 1999-05-25 |
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