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1. (WO2018103151) BASE AND BLADELESS FAN

Pub. No.:    WO/2018/103151    International Application No.:    PCT/CN2016/112102
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Tue Dec 27 00:59:59 CET 2016
IPC: F04D 29/66
Applicants: MIDEA GROUP CO., LTD.
美的集团股份有限公司
Inventors: CHENG, Jiefeng
程杰锋
LI, Zhonghua
李忠华
WEI, Ximing
魏喜明
WANG, Yue
王跃
WANG, Xuechao
王学超
LI, Changming
李长明
Title: BASE AND BLADELESS FAN
Abstract:
A base and a bladeless fan, a silencing structure (40) of the base (100) comprising: a first silencing cover (41) and a second silencing cover (42), the first silencing cover (41) forming a first silencing cavity (411), the first silencing cover (41) having formed therein a first guide hole (412) in communication with the first silencing cavity (411) and an air inlet (121), a cross-sectional area of the first guide hole (412) being smaller than a cross-sectional area of the first silencing cavity (411); the second silencing cover (42) surrounding and covering a wind inlet (211), the second silencing cover (42) forming a second silencing cavity (421) in communication with the wind inlet (211), the second silencing cover (42) having formed therein a second guide hole (422) in communication with the first silencing cavity (411) and the second silencing cavity (421), a cross-sectional area of the second guide hole (422) being smaller than a cross-sectional area of the second silencing cavity (421). The present base decreases noise while a bladeless fan is in operation.