Title:
NOISE-CANCELLING COOLING STRUCTURE AND VACUUM CLEANER THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/143264
Kind Code:
A1
Abstract:
A noise-cancelling cooling structure and a vacuum cleaner. The noise-cancelling cooling structure comprises an electric motor housing (3), an electric motor (8), a battery housing (6), and a battery pack (9). The battery pack (9) is arranged at one end of the electric motor (8). The structure is characterized in that the battery pack (9) is a hollow annular structure, and a gap is provided between the battery pack (9) and the battery housing (6). A hollow channel of the battery pack (9) and the gap compose an airflow channel. An outlet of the airflow channel is a vent (5). The vent (5) is provided on the electric motor housing (3). The employment of the technical solution of the present application in which the airflow channel is greatly extended not only reduces noise generated by the friction between an airflow at the vent of the electric motor and the vent, but, with the airflow channel arranged at the middle and around the battery pack, also provides the battery pack with improved cooling effects when a high-speed airflow flows through the channel, thus effectively reducing the temperature of the battery pack.
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Inventors:
REN MIN (CN)
LIAO HONGBIN (CN)
WANG DEXU (CN)
HUANG YUELIN (CN)
CHEN YONG (CN)
LI JI (CN)
CHEN SHANYI (CN)
HAN XUEDONG (CN)
LIAO HONGBIN (CN)
WANG DEXU (CN)
HUANG YUELIN (CN)
CHEN YONG (CN)
LI JI (CN)
CHEN SHANYI (CN)
HAN XUEDONG (CN)
Application Number:
PCT/CN2019/111552
Publication Date:
July 16, 2020
Filing Date:
October 17, 2019
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
A47L9/28; A47L9/32
Foreign References:
| CN109512337A | 2019-03-26 | |||
| CN108113571A | 2018-06-05 | |||
| CN107260059A | 2017-10-20 | |||
| CN206285056U | 2017-06-30 | |||
| CN107969984A | 2018-05-01 |
Other References:
See also references of EP 3909491A4
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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