JPS63181954U - - Google Patents
Info
- Publication number
- JPS63181954U JPS63181954U JP7253687U JP7253687U JPS63181954U JP S63181954 U JPS63181954 U JP S63181954U JP 7253687 U JP7253687 U JP 7253687U JP 7253687 U JP7253687 U JP 7253687U JP S63181954 U JPS63181954 U JP S63181954U
- Authority
- JP
- Japan
- Prior art keywords
- sensor body
- zirconia tube
- sensor
- tube
- end side
- 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
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 3
- 239000000567 combustion gas Substances 0.000 claims 1
- 239000007769 metal material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Description
第１図ないし第３図は本考案の第１の実施例を
示し、第１図はフイルタ部材の組付け状態を示す
縦断面図、第２図は金網を示す斜視図、第３図は
フイルタ部材の斜視図、第４図ないし第６図は第
２の実施例を示し、第４図はフイルタ部材の組付
け状態を示す縦断面図、第５図は支持体の斜視図
、第６図はフイルタ部材の斜視図、第７図ないし
第９図は従来技術を示し、第７図は酸素センサの
縦断面図、第８図は検出信号の出力特性線図、第
９図は検出信号が変化した状態を示す第８図と同
様の出力特性線図である。
１…センサ本体、２…ホルダ、２Ａ…おねじ部
、３…キヤツプ、３Ｃ…縮径部、４…絶縁筒体、
５…ジルコニアチユーブ、５Ａ…開口部、７…外
側電極、８…内側電極、１０…コンタクトプレー
ト、１０Ｂ…コンタクト部、１０Ｃ…切欠き部、
１１…リード線、１３…ラバチユーブ、２１，３
１…フイルタ部材、２２…金網、２３，３３…多
孔質体、３２…支持体。
1 to 3 show a first embodiment of the present invention, FIG. 1 is a longitudinal sectional view showing the assembled state of the filter member, FIG. 2 is a perspective view showing the wire mesh, and FIG. 3 is the filter member. A perspective view of the member, FIGS. 4 to 6 show the second embodiment, FIG. 4 is a longitudinal sectional view showing the assembled state of the filter member, FIG. 5 is a perspective view of the support, and FIG. 7 is a perspective view of a filter member, FIGS. 7 to 9 show the prior art, FIG. 7 is a vertical cross-sectional view of an oxygen sensor, FIG. 8 is an output characteristic diagram of a detection signal, and FIG. 9 is a diagram of a detection signal. 9 is an output characteristic diagram similar to FIG. 8 showing a changed state; FIG. DESCRIPTION OF SYMBOLS 1...Sensor body, 2...Holder, 2A...Male thread part, 3...Cap, 3C...Reduced diameter part, 4...Insulating cylindrical body,
5...zirconia tube, 5A...opening, 7...outer electrode, 8...inner electrode, 10...contact plate, 10B...contact part, 10C...notch part,
11...Lead wire, 13...Rubber tube, 21,3
DESCRIPTION OF SYMBOLS 1... Filter member, 22... Wire mesh, 23, 33... Porous body, 32... Support body.
Claims (1)
側が車両への取付部となつたセンサ本体と、該セ
ンサ本体内に配設された絶縁筒体と、一端側が前
記センサ本体の先端部内周側に該絶縁筒体と当接
するように取付けられ、他端側が該センサ本体外
に突出して閉塞端となつたジルコニアチユーブと
、該ジルコニアチユーブの外面、内面にそれぞれ
設けられた外側電極、内側電極と、前記絶縁筒体
内に配設され、一端側が前記センサ本体外に伸長
するリード線と接続され、他端側が前記ジルコニ
アチユーブの一端と絶縁筒体の他端との間で挟持
され、該内側電極と接続されたコンタクトプレー
トと、前記リード線の周囲をシールすべく、前記
センサ本体と絶縁筒体の一端側に設けられたラバ
チユーブとからなる酸素センサにおいて、前記ラ
バチユーブからの燃焼ガスがジルコニアチユーブ
内に侵入するのを防止すべく、該ジルコニアチユ
ーブの一端側には耐熱性を有する多孔質のフイル
タ部材を設けたことを特徴とする酸素センサ。 A sensor body formed in a cylindrical shape from a metal material, the outer circumferential side of the tip serving as an attachment part to the vehicle, an insulating cylindrical body disposed within the sensor body, and the inner circumference of the tip of the sensor body on one end side. A zirconia tube attached to one side so as to be in contact with the insulating cylinder, the other end protruding outside the sensor body to form a closed end, and an outer electrode and an inner electrode provided on the outer and inner surfaces of the zirconia tube, respectively. is disposed inside the insulating cylindrical body, one end side is connected to a lead wire extending outside the sensor body, the other end side is held between one end of the zirconia tube and the other end of the insulating cylindrical body, and the inside In an oxygen sensor consisting of a contact plate connected to an electrode, and a rubber tube provided at one end of the sensor body and an insulating cylinder to seal around the lead wire, combustion gas from the rubber tube flows through the zirconia tube. An oxygen sensor characterized in that a heat-resistant porous filter member is provided on one end side of the zirconia tube to prevent the zirconia tube from entering the oxygen sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7253687U JPS63181954U (en) | 1987-05-15 | 1987-05-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7253687U JPS63181954U (en) | 1987-05-15 | 1987-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63181954U true JPS63181954U (en) | 1988-11-24 |
Family
ID=30916070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7253687U Pending JPS63181954U (en) | 1987-05-15 | 1987-05-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63181954U (en) |
-
1987
- 1987-05-15 JP JP7253687U patent/JPS63181954U/ja active Pending