Title:
FIRE DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/152957
Kind Code:
A1
Abstract:
Provided is a fire detection device that makes it easier to ensure the detection accuracy of a detection target. A sensor 100 is a fire detection device attached to a ceiling surface 900, and includes: an inflow space 400 provided inside the sensor 100; a detection space 300 for detecting a detection target, the detection space 300 being provided at a position closer to the ceiling surface 900 than the inflow space 400 inside the sensor 100; an accommodation means for accommodating the detection space 300, the accommodation means being capable of allowing a gas containing the detection target to flow into and out of the detection space 300 through the inflow space 400; and an adjusting unit 15 for adjusting the flow velocity of the detection target flowing into the detection space 300, the adjusting unit 15 including a plurality of walls 151 provided in the inflow space 400.
Inventors:
WASHIZU KEISUKE (JP)
MASUZAWA HIROKI (JP)
MASUZAWA HIROKI (JP)
Application Number:
PCT/JP2022/005634
Publication Date:
August 17, 2023
Filing Date:
February 14, 2022
Export Citation:
Assignee:
HOCHIKI CO (JP)
International Classes:
G08B17/10
Foreign References:
| JP2020013396A | 2020-01-23 | |||
| US5751218A | 1998-05-12 | |||
| CN110675590A | 2020-01-10 | |||
| JP2019046112A | 2019-03-22 |
Attorney, Agent or Firm:
SAITO TATSUYA (JP)
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