Title:
HANDHELD VACUUM CLEANER HAVING INNER AIR DUCT AND OUTER AIR DUCT
Document Type and Number:
WIPO Patent Application WO/2022/017514
Kind Code:
A1
Abstract:
The present application relates to the technical field of handheld vacuum cleaners, in particular to a handheld vacuum cleaner having an inner air duct and an outer air duct. The handheld vacuum cleaner having an inner air duct and an outer air duct is of a cylindrical structure, and comprises a dust collection cup and a cylinder body which are detachably connected to each other. A dust suction port is provided at an end of the dust collection cup that is away from the cylinder body, a filtering assembly is detachably arranged inside the dust collection cup, a motor and a battery assembly are detachably and sequentially arranged inside the cylinder body in an airflow flow direction, and an air outlet is provided at an end of the cylinder body that is away from the dust collection cup. The battery assembly comprises a battery support which is of a structure with a
triangular cross section, and a battery pack, wherein the outer air duct is formed between the battery support and an inner wall of the cylinder body. The battery pack is composed of three batteries, which are respectively arranged at three vertex angles of the triangular structure of the battery support, and an inner air duct is formed in an internal space of the battery pack. In the present application, the inner air duct and the outer air duct are provided, thereby enlarging the area of air output, increasing the amount of air output and the efficiency of air output, improving the suction force and the dust collection efficiency of the handheld vacuum cleaner, facilitating heat dissipation of the motor and the battery, and prolonging the service life of the device.
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Inventors:
DUAN FEI (CN)
TANG CHENG (CN)
HAN LU (CN)
ZHU PEIHENG (CN)
TANG CHENG (CN)
HAN LU (CN)
ZHU PEIHENG (CN)
Application Number:
PCT/CN2021/108228
Publication Date:
January 27, 2022
Filing Date:
July 23, 2021
Export Citation:
Assignee:
BEIJING SHUNZAO TECH CO LTD (CN)
BEIJING XIAOMI MOBILE SOFTWARE CO LTD (CN)
BEIJING XIAOMI MOBILE SOFTWARE CO LTD (CN)
International Classes:
A47L5/24; A47L9/00; A47L9/02; A47L9/10; A47L9/12; A47L9/28
Foreign References:
| CN111789528A | 2020-10-20 | |||
| CN213488584U | 2021-06-22 | |||
| US20190282056A1 | 2019-09-19 | |||
| CN109077661A | 2018-12-25 | |||
| CN210008967U | 2020-02-04 | |||
| CN210784166U | 2020-06-19 | |||
| CN111035312A | 2020-04-21 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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