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Title:
VENTILATOR
Document Type and Number:
WIPO Patent Application WO/2020/196274
Kind Code:
A1
Abstract:
A ventilator (1) is provided with: an air supply fan (12) that is provided in an air supply duct (9) and supplies outdoor air to a room; an air supply filter (15) that is provided in the air supply duct (9) and purifies the outdoor air; and a control unit (20) for assessing whether the rotation speed (rpm_now) of the air supply fan (12) is greater than a prescribed rotation speed (rpm_Limit), calculating, as an integrated value (COUNT_now), the number of times an assessment has been made of being greater than the prescribed rotation speed (rpm_Limit), and assessing whether the air supply filter (15) is clogged on the basis of the integrated value (COUNT_now).

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Inventors:
OKUMURA MEITOKU
KIYOMOTO KUNIO
HIGUCHI TOMOYUKI
SUZUKI YASUHIRO
YAMAGUCHI MASAHIRO
Application Number:
PCT/JP2020/012322
Publication Date:
October 01, 2020
Filing Date:
March 19, 2020
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F24F7/08; F24F7/007
Domestic Patent References:
WO2013016845A12013-02-07
Foreign References:
JP2010255960A2010-11-11
JP2007263548A2007-10-11
JP2014105927A2014-06-09
JP2005233494A2005-09-02
JP2014066398A2014-04-17
JP2001193688A2001-07-17
JP2009030902A2009-02-12
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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