Title:
BASE AND BLADELESS FAN
Document Type and Number:
WIPO Patent Application WO/2018/176234
Kind Code:
A1
Abstract:
Disclosed are a base (100) and a bladeless fan (1000), the base (100) comprising: a housing (10), the housing (10) comprising an outer wall (12), and the outer wall (12) having an air inlet (121) formed thereon; a power system (20) arranged inside the housing (10), the power system (20) having an air inlet (211) formed thereon; and a noise elimination structure (40) arranged inside the housing (10), the noise elimination structure (40) comprising: a first noise elimination cover (41), the first noise elimination cover (41) being formed with a first noise elimination cavity (411), and the first noise elimination cover (41) being provided with a first via hole (412) in communication with the air inlet (121); a second noise elimination cover (42) accommodated in the first noise elimination cavity (411), the second noise elimination cover (42) surrounding and covering the air inlet (211), the second noise elimination cover (42) being formed with a second noise elimination cavity (421) in communication with the air inlet (211), and the second noise elimination cover (42) being provided with a second via hole (422) in communication with the second noise elimination cavity (421); and a connecting pipe (44), the connecting pipe (44) connecting the first noise elimination cover (41) and the second noise elimination cover (42) and correspondingly communicating the first via hole (412) and the second via hole (422), a pipe wall of the connecting pipe (44) being provided with a perforation (441), and the perforation (441)being in communication with a cavity portion (4111) of the first noise elimination cavity (411) between the first noise elimination cover (41) and the second noise elimination cover (42). The above base (100) can reduce the noise during the operation of the bladeless fan (1000).
More Like This:
| JPS5447114 | EDDY-CURRENT FAN |
| WO/2006/128827 | AN AIR INTAKE FOR A TURBOCHARGER FOR AN INTERNAL COMBUSTION ENGINE |
Inventors:
LI ZHONGHUA (CN)
CHENG JIEFENG (CN)
WEI XIMING (CN)
CHENG JIEFENG (CN)
WEI XIMING (CN)
Application Number:
PCT/CN2017/078466
Publication Date:
October 04, 2018
Filing Date:
March 28, 2017
Export Citation:
Assignee:
MIDEA GROUP CO LTD (CN)
International Classes:
F04D29/66; F04D25/08; F04D29/44
Foreign References:
| CN106321525A | 2017-01-11 | |||
| CN104819132A | 2015-08-05 | |||
| CN205937178U | 2017-02-08 | |||
| GB2502106A | 2013-11-20 | |||
| KR20160148917A | 2016-12-27 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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