JPH0321764U - - Google Patents
Info
- Publication number
- JPH0321764U JPH0321764U JP8209689U JP8209689U JPH0321764U JP H0321764 U JPH0321764 U JP H0321764U JP 8209689 U JP8209689 U JP 8209689U JP 8209689 U JP8209689 U JP 8209689U JP H0321764 U JPH0321764 U JP H0321764U
- Authority
- JP
- Japan
- Prior art keywords
- lead wire
- heater
- zirconia tube
- contact pipe
- sensor
- 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
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 8
- 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
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims 10
- 239000007789 gas Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- -1 21A Chemical compound 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Description
第１図は本考案の実施例を示し、ヒータ等を拡
大して示す部分断面図、第２図ないし第５図は従
来技術を示し、第２図はヒータ付き酸素センサの
縦断面図、第３図は電気回路図、第４図は周囲温
度と検出信号との関係を示す特性線図、第５図は
第２図中の矢示−方向断面図である。
１……センサ本体、２……ホルダ、３……キヤ
ツプ、５……コンタクトパイプ、７……ヒータ、
１３Ａ，１３Ｂ……リード線、２１Ａ，２１Ｂ…
…ニツケル線（引出し線）、２１Ａ１……ハンチ
ング部（高抵抗部）、２２……コーテイング部（
耐熱コーテイング材）。
FIG. 1 shows an embodiment of the present invention, a partial sectional view showing an enlarged heater etc., FIGS. 2 to 5 show the prior art, and FIG. 2 is a vertical sectional view of an oxygen sensor with a heater. 3 is an electric circuit diagram, FIG. 4 is a characteristic line diagram showing the relationship between ambient temperature and detection signal, and FIG. 5 is a sectional view taken in the direction indicated by the arrow in FIG. 2. 1...Sensor body, 2...Holder, 3...Cap, 5...Contact pipe, 7...Heater,
13A, 13B... Lead wire, 21A, 21B...
...Nickel wire (lead wire), 21A 1 ... Hunting part (high resistance part), 22 ... Coating part (
heat-resistant coating material).
Claims (1)
ガス中の酸素濃度を検出すべく形成されたジルコ
ニアチユーブと、該ジルコニアチユーブからの検
出信号を外部に導出するため、前記センサ本体内
に設けられたコンタクトパイプと、前記ジルコニ
アチユーブを加熱すべく、先端側が該ジルコニア
チユーブ内に伸長し、基端側が該コンタクトパイ
プ内に配設されたヒータと、前記コンタクトパイ
プ内で該ヒータに給電用リード線を接続すべく、
該ヒータに設けられた引出し線とからなるヒータ
付き酸素センサにおいて、前記引出し線に形成さ
れ、前記給電用リード線からの給電時に発熱する
高抵抗部と、前記コンタクトパイプと引出し線と
の間を絶縁すべく、該高抵抗部を含んで引出し線
を被覆した耐熱性コーテイング材とを設けたこと
を特徴とするヒータ付き酸素センサ。 A sensor body, a zirconia tube provided in the sensor body and formed to detect the oxygen concentration in exhaust gas, and a zirconia tube provided in the sensor body to derive a detection signal from the zirconia tube to the outside. a contact pipe, a heater whose distal end extends into the zirconia tube and whose proximal end is disposed within the contact pipe in order to heat the zirconia tube; and a power supply lead wire to the heater within the contact pipe. To connect,
In the oxygen sensor with a heater, the sensor includes a lead wire provided on the heater, and a high resistance part formed in the lead wire that generates heat when power is supplied from the power supply lead wire, and a connection between the contact pipe and the lead wire. An oxygen sensor with a heater, characterized in that a heat-resistant coating material covering the lead wire including the high resistance part is provided for insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8209689U JPH0321764U (en) | 1989-07-12 | 1989-07-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8209689U JPH0321764U (en) | 1989-07-12 | 1989-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0321764U true JPH0321764U (en) | 1991-03-05 |
Family
ID=31628610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8209689U Pending JPH0321764U (en) | 1989-07-12 | 1989-07-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0321764U (en) |
-
1989
- 1989-07-12 JP JP8209689U patent/JPH0321764U/ja active Pending
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