JP7474684B2 - ガスセンサ - Google Patents
ガスセンサ Download PDFInfo
- Publication number
- JP7474684B2 JP7474684B2 JP2020195836A JP2020195836A JP7474684B2 JP 7474684 B2 JP7474684 B2 JP 7474684B2 JP 2020195836 A JP2020195836 A JP 2020195836A JP 2020195836 A JP2020195836 A JP 2020195836A JP 7474684 B2 JP7474684 B2 JP 7474684B2
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- JP
- Japan
- Prior art keywords
- gas sensor
- sensor element
- casing
- mounting surface
- gas
- 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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- 229920002050 silicone resin Polymers 0.000 claims description 22
- 238000009833 condensation Methods 0.000 claims description 16
- 230000005494 condensation Effects 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 description 88
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 16
- 229910052717 sulfur Inorganic materials 0.000 description 16
- 239000011593 sulfur Substances 0.000 description 16
- 238000001514 detection method Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 239000010949 copper Substances 0.000 description 5
- 239000011342 resin composition Substances 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000005871 repellent Substances 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
- G01N27/18—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/005—Specially adapted to detect a particular component for H2
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Description
<1> ガスセンサ素子と、ガス導入口を含む壁部を有する箱状のケーシングと、前記ガスセンサ素子が実装された実装面を含み、前記実装面が前記壁部から離された状態で前記ガスセンサ素子が前記ガス導入口と重なるように、前記ケーシングの内部に配置される回路基板と、前記ガスセンサ素子の周りを取り囲むように前記実装面に形成され、かつ前記実装面と前記壁部との間に配置される環状の弾性シール体とを備えるガスセンサであって、前記弾性シール体は、硫黄非含有縮合型シリコーン樹脂からなるガスセンサ。
本発明の実施形態1を、図1~図3を参照しつつ説明する。図1は、実施形態1に係るガスセンサ1の構成を模式的に表した断面図である。説明の便宜上、図1の上側を、ガスセンサ1の上側とし、図1の下側を、ガスセンサ1の下側とする。ガスセンサ1は、被検出ガスへの熱伝導を利用して被検出ガスの濃度を検出する装置である。このようなガスセンサ1は、例えば、エネルギー源として水素ガスを利用した燃料電池を搭載するシステム(例えば、燃料電池自動車、家庭用燃料電池システム)に配置され、可燃性ガスである水素ガスを検出する。これにより、システム内における水素ガスの漏れを検出できる。
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
Claims (4)
- ガスセンサ素子と、
ガス導入口を含む壁部を有する箱状のケーシングと、
前記ガスセンサ素子が実装された実装面を含み、前記実装面が前記壁部から離された状態で前記ガスセンサ素子が前記ガス導入口と重なるように、前記ケーシングの内部に配置される回路基板と、
前記ガスセンサ素子の周りを取り囲みつつ、前記実装面と前記壁部との間に配置される環状の弾性シール体とを備えるガスセンサであって、
前記弾性シール体は、硫黄非含有縮合型シリコーン樹脂からなり、かつ
前記弾性シール体は、前記実装面と前記壁部とにそれぞれ接着されているガスセンサ。 - 前記弾性シール体は、前記実装面と前記壁部との間で挟まれた状態で配置され、前記硫黄非含有縮合型シリコーン樹脂の接着性により、前記実装面と前記壁部とにそれぞれ接着されている請求項1に記載のガスセンサ。
- 前記ガスセンサ素子は、自身の温度変化により抵抗値が変化する発熱抵抗体を含む熱伝導式ガスセンサ素子からなる請求項1又は請求項2に記載のガスセンサ。
- 前記ケーシングの内部に配置される金属製の網部材を備える請求項3に記載のガスセンサ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020195836A JP7474684B2 (ja) | 2020-11-26 | 2020-11-26 | ガスセンサ |
US18/028,321 US20230375489A1 (en) | 2020-11-26 | 2021-09-15 | Gas sensor |
DE112021006145.3T DE112021006145T5 (de) | 2020-11-26 | 2021-09-15 | Gassensor |
CN202180062357.0A CN116075716A (zh) | 2020-11-26 | 2021-09-15 | 气体传感器 |
PCT/JP2021/033877 WO2022113485A1 (ja) | 2020-11-26 | 2021-09-15 | ガスセンサ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020195836A JP7474684B2 (ja) | 2020-11-26 | 2020-11-26 | ガスセンサ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022084165A JP2022084165A (ja) | 2022-06-07 |
JP7474684B2 true JP7474684B2 (ja) | 2024-04-25 |
Family
ID=81755470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020195836A Active JP7474684B2 (ja) | 2020-11-26 | 2020-11-26 | ガスセンサ |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230375489A1 (ja) |
JP (1) | JP7474684B2 (ja) |
CN (1) | CN116075716A (ja) |
DE (1) | DE112021006145T5 (ja) |
WO (1) | WO2022113485A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008249684A (ja) | 2007-03-02 | 2008-10-16 | Ngk Spark Plug Co Ltd | ガスセンサ装置 |
JP2012202939A (ja) | 2011-03-28 | 2012-10-22 | Ngk Spark Plug Co Ltd | ガス検出装置 |
US20160349201A1 (en) | 2014-02-11 | 2016-12-01 | Ams Sensor Solutions Germany Gmbh | Method and sensor system for measuring gas concentrations |
JP2017122616A (ja) | 2016-01-06 | 2017-07-13 | 日本特殊陶業株式会社 | センサの検査方法及びセンサの製造方法 |
-
2020
- 2020-11-26 JP JP2020195836A patent/JP7474684B2/ja active Active
-
2021
- 2021-09-15 US US18/028,321 patent/US20230375489A1/en active Pending
- 2021-09-15 CN CN202180062357.0A patent/CN116075716A/zh active Pending
- 2021-09-15 DE DE112021006145.3T patent/DE112021006145T5/de active Pending
- 2021-09-15 WO PCT/JP2021/033877 patent/WO2022113485A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008249684A (ja) | 2007-03-02 | 2008-10-16 | Ngk Spark Plug Co Ltd | ガスセンサ装置 |
JP2012202939A (ja) | 2011-03-28 | 2012-10-22 | Ngk Spark Plug Co Ltd | ガス検出装置 |
US20160349201A1 (en) | 2014-02-11 | 2016-12-01 | Ams Sensor Solutions Germany Gmbh | Method and sensor system for measuring gas concentrations |
JP2017122616A (ja) | 2016-01-06 | 2017-07-13 | 日本特殊陶業株式会社 | センサの検査方法及びセンサの製造方法 |
Non-Patent Citations (1)
Title |
---|
阿部 博幸ほか,エンジンルームに実装される筐体構造電子部品の硫黄腐食における加速試験方法の提案,材料と環境,日本,公益社団法人 腐食防食学会,2016年05月15日,65巻,5号,p.193-196 |
Also Published As
Publication number | Publication date |
---|---|
DE112021006145T5 (de) | 2023-09-28 |
WO2022113485A1 (ja) | 2022-06-02 |
US20230375489A1 (en) | 2023-11-23 |
CN116075716A (zh) | 2023-05-05 |
JP2022084165A (ja) | 2022-06-07 |
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