JPH0212652U - - Google Patents
Info
- Publication number
- JPH0212652U JPH0212652U JP9090388U JP9090388U JPH0212652U JP H0212652 U JPH0212652 U JP H0212652U JP 9090388 U JP9090388 U JP 9090388U JP 9090388 U JP9090388 U JP 9090388U JP H0212652 U JPH0212652 U JP H0212652U
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- sensor element
- air
- introduction hole
- holder
- 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.)
- Pending
Links
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 3
- 239000007784 solid electrolyte Substances 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Description
第１図は本考案の第１実施例を示す酸素センサ
部分断面図、第２図は本考案の第２実施例を示す
酸素センサ部分断面図、第３図は本考案の効果を
説明する酸素センサの絶縁抵抗の水分侵入による
変化を表す説明図、第４図は従来の酸素センサを
示す全体断面図である。
１…ジルコニアチユーブ、４…排気ガス側電極
、５…大気側電極、９…キヤツプ、１３…シーリ
ングラバー、１６，２１…大気導入孔、１８…大
気側電極の端部、２３…粉体、３１…テフロン樹
脂の成形材、３２…加締め固定。
Fig. 1 is a partial cross-sectional view of an oxygen sensor showing a first embodiment of the present invention, Fig. 2 is a partial cross-sectional view of an oxygen sensor showing a second embodiment of the present invention, and Fig. 3 is an oxygen sensor illustrating the effects of the present invention. FIG. 4 is an explanatory diagram showing changes in the insulation resistance of the sensor due to moisture intrusion. FIG. 4 is an overall sectional view showing a conventional oxygen sensor. DESCRIPTION OF SYMBOLS 1...zirconia tube, 4...exhaust gas side electrode, 5...atmosphere side electrode, 9...cap, 13...sealing rubber, 16, 21...atmosphere introduction hole, 18...end of atmosphere side electrode, 23...powder, 31 ...Teflon resin molding material, 32...Fixed by caulking.
Claims (1)
、該固体電解質部材の内外表面にそれぞれに接触
する基準酸素用大気と被検出気体との酸素濃度差
により検出気体の酸素濃度を検出するセンサ素子
が、ホルダー先端部に保持されると共に、前記ホ
ルダーの基端部外周に筒状の収納部材の一端部が
嵌合接続され、前記センサ素子の内表面に前記ケ
ース部材に形成した大気導入孔から大気を導入す
るようにした酸素センサにおいて、 前記大気導入孔若しくは該導入孔から前記セン
サ素子に至る大気通路に、大気を透過し且つ液体
の透過を抑制する部材を設け、且つ前記収納部材
の少なくとも一端接続部を液密構造に形成したこ
とを特徴とする酸素センサ。[Claim for Utility Model Registration] The oxygen concentration of the detected gas is determined by the difference in oxygen concentration between the reference oxygen atmosphere and the detected gas, which are formed from an oxygen ion conductive solid electrolyte member and are in contact with the inner and outer surfaces of the solid electrolyte member, respectively. A sensor element for detecting is held at the tip of the holder, and one end of a cylindrical storage member is fitted and connected to the outer periphery of the base end of the holder, and a sensor element is formed on the inner surface of the sensor element on the case member. In an oxygen sensor configured to introduce air through an air introduction hole, the air introduction hole or an air passage leading from the introduction hole to the sensor element is provided with a member that transmits the air and suppresses the permeation of a liquid, and An oxygen sensor characterized in that at least one end connection portion of the storage member is formed in a liquid-tight structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9090388U JPH0212652U (en) | 1988-07-11 | 1988-07-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9090388U JPH0212652U (en) | 1988-07-11 | 1988-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0212652U true JPH0212652U (en) | 1990-01-26 |
Family
ID=31315410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9090388U Pending JPH0212652U (en) | 1988-07-11 | 1988-07-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0212652U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS559445B2 (en) * | 1972-02-03 | 1980-03-10 | ||
| JPS56133653A (en) * | 1980-03-25 | 1981-10-19 | Toyota Motor Corp | O2 sensor |
| JPS6242066B2 (en) * | 1984-02-02 | 1987-09-07 | Barudan Co Ltd |
-
1988
- 1988-07-11 JP JP9090388U patent/JPH0212652U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS559445B2 (en) * | 1972-02-03 | 1980-03-10 | ||
| JPS56133653A (en) * | 1980-03-25 | 1981-10-19 | Toyota Motor Corp | O2 sensor |
| JPS6242066B2 (en) * | 1984-02-02 | 1987-09-07 | Barudan Co Ltd |
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