GAS SENSOR ELEMENT, GAS SENSOR AND METHOD FOR MANUFACTURING GAS SENSOR ELEMENT

To provide a gas sensor element including an insulation protective layer having a porous part and capable of preventing damage from occurring even when used in a low temperature environment.SOLUTION: A gas sensor element for detecting a first component and a second component in a gas to be measured...

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Bibliographic Details
Main Authors YAMADA TETSUO, KOJIMA AKIYOSHI, FURUTA SAI
Format Patent
LanguageEnglish
Japanese
Published 29.08.2019
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Summary:To provide a gas sensor element including an insulation protective layer having a porous part and capable of preventing damage from occurring even when used in a low temperature environment.SOLUTION: A gas sensor element for detecting a first component and a second component in a gas to be measured comprises an element body part, a first detector 101, second detectors 102 and 103 and an element protective part 124. When using the formation regions of the second detectors in a region in the axial direction as second detection regions and using the formation region of a porous part as a porous region, the element protective part is usually formed on a side surface 101C so as to cover at least the porous region and a region on the tip side from the porous region and is formed on a second detection side surface so as to cover at least a part of the regions on the tip side from the second detectors without covering the second detectors. Namely, the gas sensor element includes the element protective part formed so as to cover the porous part of the first detector without covering the second detectors.SELECTED DRAWING: Figure 5 【課題】多孔質部を有する絶縁保護層を備えるガスセンサ素子において、低温環境下で使用する場合でも破損が生じがたいガスセンサ素子を提供する。【解決手段】被測定ガス中の第1成分および第2成分を検出するガスセンサ素子であって、素子本体部と、第1検出部101と、第2検出部102、103と、素子保護部124と、を備える。軸線方向の領域のうち第2検出部の形成領域を第2検出領域とし、多孔質部の形成領域を多孔質領域とした場合に、素子保護部は、通常側面101Cにおいては、多孔質領域および多孔質領域よりも先端側の領域を少なくとも覆うように形成され、第2検出側面においては、第2検出部は覆わず、第2検出部より先端側の領域のうち少なくとも一部を覆うように形成されている。つまり、このガスセンサ素子は、第2検出部を覆うことなく、第1検出部の多孔質部を覆うように形成された素子保護部を備える。【選択図】図5
Bibliography:Application Number: JP20180155442