JPH0158158U - - Google Patents
Info
- Publication number
- JPH0158158U JPH0158158U JP15359787U JP15359787U JPH0158158U JP H0158158 U JPH0158158 U JP H0158158U JP 15359787 U JP15359787 U JP 15359787U JP 15359787 U JP15359787 U JP 15359787U JP H0158158 U JPH0158158 U JP H0158158U
- Authority
- JP
- Japan
- Prior art keywords
- heater
- contact pipe
- sensor body
- protrusion
- oxygen concentration
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims 1
- 239000000919 ceramic Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Description
第１図ないし第３図は本考案の実施例を示し、
第１図はヒータをセラミツクパイプ内に位置決め
した状態を示す酸素センサの要部縦断面図、第２
図はうず巻きばねの平面図、第３図はヒータにう
ず巻きばねを組付けた状態を示す斜視図、第４図
ないし第７図は従来技術を示し、第４図は酸素セ
ンサの縦断面図、第５図はヒータの要部縦断面図
、第６図は予備成形した状態のガラス材料を示す
斜視図、第７図はセラミツクパイプ内に位置決め
されたヒータを示す縦断面図である。
１…センサ本体、６…酸素濃度検出素子、２１
…コンタクトパイプ、２２…ヒータ、２３…ヒー
タ本体、２４…突部、２５…うず巻きばね、２５
Ａ…内周側、２５Ｂ…外周側。
1 to 3 show embodiments of the present invention,
Figure 1 is a vertical sectional view of the main part of the oxygen sensor showing the heater positioned inside the ceramic pipe, Figure 2
Figure 3 is a plan view of the spiral spring, Figure 3 is a perspective view showing the spiral spring assembled to the heater, Figures 4 to 7 show the prior art, Figure 4 is a vertical sectional view of the oxygen sensor, FIG. 5 is a longitudinal sectional view of the main part of the heater, FIG. 6 is a perspective view showing the glass material in a preformed state, and FIG. 7 is a longitudinal sectional view showing the heater positioned within the ceramic pipe. 1...Sensor body, 6...Oxygen concentration detection element, 21
... Contact pipe, 22 ... Heater, 23 ... Heater main body, 24 ... Projection, 25 ... Spiral spring, 25
A...Inner circumference side, 25B...Outer circumference side.
Claims (1)
ガス中の酸素濃度を検出する酸素濃度検出素子と
、該検出素子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、前記検出素子を加熱すべく、先端側が該
検出素子内に伸長し、基端側が該コンタクトパイ
プ内に配設されたヒータとからなるヒータ付き酸
素センサにおいて、前記ヒータの軸方向中間部に
は係止用の突部を形成すると共に、前記コンタク
トパイプには位置決め用の段部を形成し、前記ヒ
ータとコンタクトパイプとの間には内周側が前記
ヒータの突部に係止し、外周側が前記コンタクト
パイプの段部に位置決めされるうず巻きばねを設
けたことを特徴とするヒータ付き酸素センサ。 A sensor body, an oxygen concentration detection element provided in the sensor body to detect oxygen concentration in exhaust gas, and a contact pipe provided in the sensor body to derive a detection signal from the detection element to the outside. and a heater with a distal end extending into the detecting element and a proximal end disposed within the contact pipe to heat the detecting element, wherein an axially intermediate portion of the heater is provided. is formed with a protrusion for locking, and a stepped part is formed on the contact pipe for positioning, and between the heater and the contact pipe, the inner circumferential side is engaged with the protrusion of the heater, and the outer circumferential side is disposed between the heater and the contact pipe. An oxygen sensor with a heater, characterized in that a spiral spring is provided whose side is positioned at the stepped portion of the contact pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15359787U JPH0158158U (en) | 1987-10-07 | 1987-10-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15359787U JPH0158158U (en) | 1987-10-07 | 1987-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0158158U true JPH0158158U (en) | 1989-04-11 |
Family
ID=31429583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15359787U Pending JPH0158158U (en) | 1987-10-07 | 1987-10-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0158158U (en) |
-
1987
- 1987-10-07 JP JP15359787U patent/JPH0158158U/ja active Pending