JP7392075B2 - 煙感知器 - Google Patents
煙感知器 Download PDFInfo
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- JP7392075B2 JP7392075B2 JP2022167803A JP2022167803A JP7392075B2 JP 7392075 B2 JP7392075 B2 JP 7392075B2 JP 2022167803 A JP2022167803 A JP 2022167803A JP 2022167803 A JP2022167803 A JP 2022167803A JP 7392075 B2 JP7392075 B2 JP 7392075B2
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- Japan
- Prior art keywords
- light
- emitting element
- smoke
- light emitting
- receiving element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000779 smoke Substances 0.000 title claims description 118
- 238000001514 detection method Methods 0.000 claims description 43
- 230000002093 peripheral effect Effects 0.000 claims description 27
- 230000003287 optical effect Effects 0.000 description 82
- 238000010586 diagram Methods 0.000 description 12
- 230000000414 obstructive effect Effects 0.000 description 9
- 238000012790 confirmation Methods 0.000 description 6
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 230000001154 acute effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/04—Monitoring of the detection circuits
- G08B29/043—Monitoring of the detection circuits of fire detection circuits
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
一方、発光素子と受光素子が正常に機能しているか検出するため、発光素子からの照射光が光学台の内側で吸収されずに反射した反射光を用いる技術がある。この場合には、光学台の内部における反射光が少なすぎても多すぎても正常に機能しない。
本発明は、光学台の内部における反射光を適切な量とすることを課題とする。
本発明により、検煙部に煙がないときにおける受光素子に入光する反射光を増加させ、第1発光素子の障害を検査することができる。
本発明により、検煙部に煙がないときにおける受光素子に入光する反射光を増加させ、第1発光素子と受光素子の障害を検査することができる。
第1光学台カバー3は、位置決め脚33を位置決め円筒部723に差し込んだ状態でスナップ片34にスナップ凸部715が3箇所で嵌まり、感知器ベース2に係止される。
光学台71の上面板710とプレート部72の垂直方向の位置は同じである。第1発光素子収容壁712、第2発光素子収容壁713、受光素子収容壁714において、周壁以外の部分はプレート部72からの突出量が小さい。上面板710及びプレート部72から周壁の下端までの長さは一定である。
Claims (1)
- 煙導入部と、
前記煙導入部の上方に設けられて周壁により側方から囲まれた検煙部と、
第1発光素子と、
受光素子と、を備え、
前記周壁の内側において、煙がない前記検煙部に前記第1発光素子から送出した第1照射光が照射された際に二次反射光を形成する二次反射板を前記第1発光素子の側方に設け、
前記二次反射板は前記第1照射光が前記周壁で反射した一次反射光を受けて反射し、生じた前記二次反射光を前記受光素子に入光させることを特徴とする煙感知器。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022167803A JP7392075B2 (ja) | 2019-03-19 | 2022-10-19 | 煙感知器 |
JP2023198098A JP2024009202A (ja) | 2019-03-19 | 2023-11-22 | 煙感知器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019051478A JP7163227B2 (ja) | 2019-03-19 | 2019-03-19 | 煙感知器 |
JP2022167803A JP7392075B2 (ja) | 2019-03-19 | 2022-10-19 | 煙感知器 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019051478A Division JP7163227B2 (ja) | 2019-03-19 | 2019-03-19 | 煙感知器 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023198098A Division JP2024009202A (ja) | 2019-03-19 | 2023-11-22 | 煙感知器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022186842A JP2022186842A (ja) | 2022-12-15 |
JP7392075B2 true JP7392075B2 (ja) | 2023-12-05 |
Family
ID=72520129
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019051478A Active JP7163227B2 (ja) | 2019-03-19 | 2019-03-19 | 煙感知器 |
JP2022167803A Active JP7392075B2 (ja) | 2019-03-19 | 2022-10-19 | 煙感知器 |
JP2023198098A Pending JP2024009202A (ja) | 2019-03-19 | 2023-11-22 | 煙感知器 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019051478A Active JP7163227B2 (ja) | 2019-03-19 | 2019-03-19 | 煙感知器 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023198098A Pending JP2024009202A (ja) | 2019-03-19 | 2023-11-22 | 煙感知器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US11915569B2 (ja) |
JP (3) | JP7163227B2 (ja) |
CN (1) | CN113519017B (ja) |
WO (1) | WO2020189630A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7320959B2 (ja) * | 2019-03-11 | 2023-08-04 | 能美防災株式会社 | 煙感知器 |
US11615684B2 (en) * | 2020-11-24 | 2023-03-28 | Pixart Imaging Inc. | Smoke detector |
US11849716B2 (en) * | 2022-01-17 | 2023-12-26 | Honeywell International Inc. | Insect guard for an aspirated smoke, gas, or air quality monitoring systems and devices |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002197558A (ja) | 2000-12-25 | 2002-07-12 | Matsushita Electric Works Ltd | 火災警報器 |
JP2016115061A (ja) | 2014-12-12 | 2016-06-23 | 新コスモス電機株式会社 | 光電式煙感知器 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5361298A (en) * | 1976-11-12 | 1978-06-01 | Tokyo Electric Co Ltd | Photoelectric smoke detector |
ATE11706T1 (de) * | 1980-12-30 | 1985-02-15 | Compagnie Centrale Sicli (Societe Anonyme) | Rauchmelder nach dem lichtstreuungsprinzip mit selbstueberwachung. |
JPH0573784A (ja) * | 1991-09-13 | 1993-03-26 | Matsushita Electric Works Ltd | 光電式煙感知器 |
JP3095884B2 (ja) * | 1992-05-29 | 2000-10-10 | ホーチキ株式会社 | 光電式分離型煙感知器 |
GB2340601B (en) * | 1997-05-29 | 2001-10-24 | Hochiki Co | Light projection device for a photoelectric smoke sensor |
JP5361298B2 (ja) | 2008-09-12 | 2013-12-04 | 株式会社東芝 | 電池パック |
KR20100037539A (ko) * | 2008-10-01 | 2010-04-09 | 노미 보사이 가부시키가이샤 | 광전식 연기 감지기 |
JP5481943B2 (ja) * | 2009-06-01 | 2014-04-23 | 日本テキサス・インスツルメンツ株式会社 | 微粒子感知装置 |
JP6437732B2 (ja) * | 2014-03-28 | 2018-12-12 | 能美防災株式会社 | 煙感知器 |
CN107545695A (zh) * | 2016-06-27 | 2018-01-05 | 北京西门子西伯乐斯电子有限公司 | 烟感探测器 |
US10809173B2 (en) * | 2017-12-15 | 2020-10-20 | Analog Devices, Inc. | Smoke detector chamber boundary surfaces |
CN208092906U (zh) * | 2018-05-14 | 2018-11-13 | 广州莲雾科技有限公司 | 一种光电式烟雾探测器 |
CN108648408A (zh) * | 2018-05-14 | 2018-10-12 | 广州莲雾科技有限公司 | 一种光电式烟雾探测器及其自检方法 |
US20220317012A1 (en) * | 2019-10-21 | 2022-10-06 | Martin Terence Cole | Particle, including sars-cov-2, detection and methods therefor |
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2019
- 2019-03-19 JP JP2019051478A patent/JP7163227B2/ja active Active
-
2020
- 2020-03-16 US US17/434,676 patent/US11915569B2/en active Active
- 2020-03-16 WO PCT/JP2020/011489 patent/WO2020189630A1/ja active Application Filing
- 2020-03-16 CN CN202080018513.9A patent/CN113519017B/zh active Active
-
2022
- 2022-10-19 JP JP2022167803A patent/JP7392075B2/ja active Active
-
2023
- 2023-11-22 JP JP2023198098A patent/JP2024009202A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002197558A (ja) | 2000-12-25 | 2002-07-12 | Matsushita Electric Works Ltd | 火災警報器 |
JP2016115061A (ja) | 2014-12-12 | 2016-06-23 | 新コスモス電機株式会社 | 光電式煙感知器 |
Also Published As
Publication number | Publication date |
---|---|
US20220319290A1 (en) | 2022-10-06 |
JP2020154598A (ja) | 2020-09-24 |
CN113519017B (zh) | 2022-12-02 |
US11915569B2 (en) | 2024-02-27 |
JP2022186842A (ja) | 2022-12-15 |
JP7163227B2 (ja) | 2022-10-31 |
JP2024009202A (ja) | 2024-01-19 |
CN113519017A (zh) | 2021-10-19 |
WO2020189630A1 (ja) | 2020-09-24 |
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