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Patent Searching and Data


Title:
AIR PURIFICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/187176
Kind Code:
A1
Abstract:
This air purification device comprises photocatalyst filters (24-27, 36-38, 50-54) that are arranged in a ventilation passage (120) through which air flows and that include a photocatalyst (P). The air purification device also comprises rod-shaped irradiation members (312, 322, 412, 422, 432, 442, 452, 462, 612, 622, 632, 642) for irradiating the photocatalyst filters with light that activates the photocatalyst. Members (12, 13, 141, 143) made from a resin are arranged upstream and/or downstream from the photocatalyst filters. The photocatalyst filters include an air inflow surface (24A) whereby air flows in, an air outflow surface (24B) whereby air flows out, and an outer surface (24C) connecting the air inflow surface and the air outflow surface. The irradiation members are arranged facing the outer surfaces so as to be parallel to the photocatalyst filters with respect to the flow of air in the ventilation passage, and said irradiation members have a structure in which the direction of emission of light is restricted to the direction leading toward the photocatalyst filters.

Inventors:
OCHIAI TOSHINORI (JP)
KUWAYAMA AKINORI (JP)
OTSUKI TAKEYUKI (JP)
ITOH KOUICHI (JP)
Application Number:
PCT/JP2021/008808
Publication Date:
September 23, 2021
Filing Date:
March 05, 2021
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
A61L9/00; B01J35/02; A61L9/18; B60H3/06; F24F7/003
Domestic Patent References:
WO2003086792A12003-10-23
Foreign References:
JP2014171572A2014-09-22
JP2003070885A2003-03-11
JP2006237563A2006-09-07
JP2005343427A2005-12-15
JP2005279279A2005-10-13
JP2010227840A2010-10-14
JP2010513737A2010-04-30
JP2009056088A2009-03-19
JP2005087465A2005-04-07
Attorney, Agent or Firm:
YOU-I PATENT FIRM (JP)
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