JPH01160364U - - Google Patents
Info
- Publication number
- JPH01160364U JPH01160364U JP5611988U JP5611988U JPH01160364U JP H01160364 U JPH01160364 U JP H01160364U JP 5611988 U JP5611988 U JP 5611988U JP 5611988 U JP5611988 U JP 5611988U JP H01160364 U JPH01160364 U JP H01160364U
- Authority
- JP
- Japan
- Prior art keywords
- cement
- exhaust gas
- heat
- metal housing
- resistant
- 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
- 239000004568 cement Substances 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims 6
- 230000001681 protective effect Effects 0.000 claims 3
- 239000000446 fuel Substances 0.000 claims 1
- 229910044991 metal oxide Inorganic materials 0.000 claims 1
- 150000004706 metal oxides Chemical class 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Description
第１図は実施例の排ガスセンサの部分切り欠き
部付き正面図、第２図はその内部構造を現す部分
切り欠き部付き正面図、第３図は実施例のスペー
サーの正面図、第４図は実施例の要部拡大断面図
である。
図において、４……耐熱絶縁性基板、６……保
護管、８……センサ本体、１４，１６……電極、
２０……外部リード線、４０……セメント、４４
……スペーサー。
Figure 1 is a front view with a partial cutout of the exhaust gas sensor of the example, Figure 2 is a front view with a partial cutout showing its internal structure, Figure 3 is a front view of the spacer of the example, and Figure 4. is an enlarged sectional view of a main part of the embodiment. In the figure, 4... Heat-resistant insulating substrate, 6... Protection tube, 8... Sensor body, 14, 16... Electrode,
20...External lead wire, 40...Cement, 44
……spacer.
Claims (1)
より抵抗値が変化する金属酸化物半導体を用いた
センサ本体を設置し、 このセンサ本体に少なくとも一対の電極を接続
して、電極の端部を前記基体の基端部付近まで引
き出し、電極の端部を外部リードに接続すると共
に、 前記のセンサ本体を突出させるように、前記の
基体を金属ハウジングに収容して、金属ハウジン
グの先端部付近で、基体をセメントにより金属ハ
ウジングに固着し、かつ金属ハウジングからの基
体の突出部を、排ガス導入口を有する保護カバー
で覆つた、排ガスセンにおいて、 前記セメントをアルカリ性セメントとすると共
に、 前記セメントの保護カバー側に、セメントを排
ガスから遮断するためのスペーサーを設けたこと
を特徴とする、排ガスセンサ。 (2) 前記耐熱絶縁性基体を、その先端部付近に
センサ本体を設置した耐熱絶縁性基板と、この基
板の基端部を収容した耐熱絶縁性保護管との２つ
から構成し、 かつ前記セメントにより、耐熱絶縁性基板と保
護管と、金属ハウジングの３者を固着するように
したことを特徴とする、請求項１に記載の排ガス
センサ。 (3) 前記のスペーサーを前記のセメントで固着
すると共に、 スペーサーに前記の耐熱絶縁性基板を挿通し、
かつスペーサーの外周を金属ハウジングの内周に
ほぼフイツトさせたことを特徴とする、請求項２
に記載の排ガスセンサ。[Claims for Utility Model Registration] (1) A sensor body made of a metal oxide semiconductor whose resistance value changes depending on the air-fuel ratio is installed near the tip of a heat-resistant insulating base, and at least one pair of electrodes is installed on the sensor body. the base body is housed in a metal housing so that the end of the electrode is connected to the base end of the base body, and the end of the electrode is connected to an external lead, and the body of the sensor protrudes. In the exhaust gas sensor, the base body is fixed to the metal housing with cement near the tip of the metal housing, and the protrusion of the base body from the metal housing is covered with a protective cover having an exhaust gas inlet. An exhaust gas sensor, characterized in that it is made of alkaline cement, and a spacer is provided on the protective cover side of the cement for shielding the cement from exhaust gas. (2) The heat-resistant and insulating base body is composed of two parts: a heat-resistant and insulating substrate on which the sensor body is installed near the tip thereof, and a heat-resistant and insulating protection tube that accommodates the base end of this substrate, and 2. The exhaust gas sensor according to claim 1, wherein the heat-resistant insulating substrate, the protective tube, and the metal housing are fixed to each other by cement. (3) Fixing the spacer with the cement, and inserting the heat-resistant insulating substrate into the spacer.
Claim 2 characterized in that the outer periphery of the spacer is substantially fitted to the inner periphery of the metal housing.
Exhaust gas sensor described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5611988U JPH01160364U (en) | 1988-04-26 | 1988-04-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5611988U JPH01160364U (en) | 1988-04-26 | 1988-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01160364U true JPH01160364U (en) | 1989-11-07 |
Family
ID=31282002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5611988U Pending JPH01160364U (en) | 1988-04-26 | 1988-04-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01160364U (en) |
-
1988
- 1988-04-26 JP JP5611988U patent/JPH01160364U/ja active Pending
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