Title:
DUST MEASUREMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/076405
Kind Code:
A1
Abstract:
Provided is a dust measurement device, comprising: a housing (10), a piezoelectric air pump (20) and a dust measurement assembly (30). The housing (10) is provided with a first air inlet (11) and a first air outlet (12). An inner cavity of the housing (10) communicates with the external environment by means of the first air inlet (11) and the first air outlet (12). Both the piezoelectric air pump (20) and the dust measurement assembly (30) are disposed on the housing (10). The piezoelectric air pump (20) is configured to feed the air outside the housing (10) into the housing (10) through the first air inlet (11). The dust measurement assembly (30) is used to measure the dust content of the air in the housing (10). In the dust measurement device described above, external air is fed into the housing (10) by the piezoelectric air pump (20), in such a manner that the dust cannot easily collect in the piezoelectric pump (20), overcoming the phenomenon that dust tends to deposit on the blades of a conventional blower, which results in poor dust measurement accuracy. The invention thereby greatly increases dust measurement accuracy.
Inventors:
FU HAO (CN)
ZHENG ZHENJIE (CN)
TIAN JIAQI (CN)
ZHENG ZHENJIE (CN)
TIAN JIAQI (CN)
Application Number:
PCT/CN2016/105719
Publication Date:
May 03, 2018
Filing Date:
November 14, 2016
Export Citation:
Assignee:
AUDIOWELL ELECT GUANGDONG CO (CN)
International Classes:
G01N15/06
Foreign References:
| CN106290098A | 2017-01-04 | |||
| CN106442249A | 2017-02-22 | |||
| CN204758444U | 2015-11-11 | |||
| CN205445973U | 2016-08-10 | |||
| CN1603835A | 2005-04-06 | |||
| CN105572008A | 2016-05-11 | |||
| KR20060020355A | 2006-03-06 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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