AIR PURIFIER

WIPO Patent Application WO/2018/214091

A1

Disclosed is an air purifier having a filter (2), an air pressure sensor (6), a warning module and a control module, wherein the air pressure sensor (6) is used for collecting an air pressure value of air after same flows through the filter; the warning module is used for providing, for a user, information about the degree of damage of the filter; and the control module can adjust a working state of the warning module according to the air pressure value collected by the air pressure sensor (6). The air pressure sensor (6) includes: a collection portion (6E); a rectification grid (6C) for rectifying the air after same flows through the filter (2); and a flow guide channel (6D) located between the collection portion (6E) and the rectification grid (6C), wherein the collection portion (6E) is used for collecting an air pressure value of the air flowing in from the flow guide channel (6D). By rectifying the air after same flows through the filter (2) by means of the rectification grid (6C), an eddy can be changed into a laminar flow, and then flows to the collection portion (6E) along the flow guide channel (6D), thus preventing the eddy from affecting the precision of the collected air pressure value.

ZOU JIANHAN (CN)
XIE LIFENG (CN)
ZHU QINGZHEN (CN)

PCT/CN2017/085865

November 29, 2018

May 25, 2017

Click for automatic bibliography generation  

ZOU JIANHAN (CN)

F24F1/02; B01D46/10

CN106474839A	2017-03-08
CN106051998A	2016-10-26
CN204717897U	2015-10-21
CN204534902U	2015-08-05
US20070277592A1	2007-12-06
US20030070544A1	2003-04-17

View/Download PDF      PDF Help

Previous Patent: CONTROL METHOD AND APPARATUS, AND PAN-TILT

Next Patent: LED MASK, LED BENDING SCREEN, AND DESIGN METHOD FOR LED BENDING SCREEN