JPH0361564U

JPH0361564U -

Info

Publication number: JPH0361564U
Application number: JP12251589U
Authority: JP
Priority date: 1989-10-18
Filing date: 1989-10-18
Publication date: 1991-06-17
Anticipated expiration: 2004-10-18
Also published as: JPH084610Y2

Description

[Brief explanation of drawings]

第１図は本考案ヒータ付酸素センサの一例を示
す部分切欠斜視図、第２図は第１図の−線縦
断面図、第３図は第２図の−線断面図、第４
図は他の実施例の部分切欠平面図、第５図は温度
測定位置を示す図、第６図は測定位置と温度との
関係を示す図、第７図は従来の積層型ヒータ付酸
素センサの一例を示す斜視図である。符号の説明、１……パイプ状ヒータ、１１……
発熱部、２……センサ主体、２０……空間隙、２
１……センサ主体の先側、３，４……電極部、３
１，４１……リード部、１２，２２……テーパ段
部、５……シール材、６……酸素センサ。 FIG. 1 is a partially cutaway perspective view showing an example of the oxygen sensor with a heater of the present invention, FIG.
The figure is a partially cutaway plan view of another embodiment, Figure 5 is a diagram showing the temperature measurement position, Figure 6 is a diagram showing the relationship between the measurement position and temperature, and Figure 7 is a conventional stacked type oxygen sensor with heater. It is a perspective view showing an example. Explanation of symbols, 1...Pipe-shaped heater, 11...
Heat generating part, 2...sensor main body, 20...space gap, 2
1... Tip side of sensor main body, 3, 4... Electrode part, 3
1, 41... Lead portion, 12, 22... Taper step portion, 5... Seal material, 6... Oxygen sensor.

Claims

[Claims for Utility Model Registration] 1. A pipe-shaped heater whose distal end is a heat generating part and whose ends are open, and whose distal end is sealed and whose base end is open, and whose distal end is a pipe-shaped heater whose distal end is sealed and whose base end is open. A hollow sensor body made of a solid electrolyte is fitted with a space between it and the inner wall surface of the heat generating part forming part, and a lead part is attached to both the inner and outer circumferential surfaces of the hollow tip of the sensor body. an oxygen sensor with a heater, the oxygen sensor comprising a pair of electrode parts guided toward the proximal end along the peripheral body of the sensor main body, and the oxygen sensor is constituted by the electrode parts and the sensor main body. 2 The cross-sectional shape of the main body of the sensor is rectangular;
2. The heater-equipped oxygen sensor according to claim 1, wherein the inner surface of the pipe-shaped heater that fits into the sensor main body has a rectangular shape that matches the sensor main body, and the inner surface of the heat generating portion forming portion has a circular shape. 3 The leading end of the fitting part between the pipe-shaped heater and the sensor main body is a tapered stepped portion having the same slope, and the sensor main body is inserted from the base end of the pipe-shaped heater and is positioned and fixed by the tapered stepped portion. The oxygen sensor with a heater according to claim 1 or 2, wherein the oxygen sensor is a heater-equipped oxygen sensor. 4. Claims 1 and 2, wherein the fitting portion between the pipe-shaped heater and the sensor main body is tightly fitted and fixed by a sealing material made of glass or ceramic cement.
Or the oxygen sensor according to 3.