JPH0475959U

JPH0475959U -

Info

Publication number: JPH0475959U
Application number: JP11971890U
Authority: JP
Priority date: 1990-11-15
Filing date: 1990-11-15
Publication date: 1992-07-02

Description

[Brief explanation of the drawing]

第１図ないし第３図は本考案の実施例を示し、
第１図は酸素センサの縦断面図、第２図は第１図
中の矢示−方向断面図、第３図は酸素センサ
をＶ型エンジンに取付けた状態を示す全体構成図
、第４図ないし第６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図は第４図中の矢
示−方向断面図、第６図は酸素センサをＶ型
エンジンに取付けた状態を示す全体構成図である
。２……センサ本体、６……ジルコニアチユーブ
（酸素濃度検出素子）、２２Ａ，２２Ｂ……外側
電極、２３Ａ，２３Ｂ……内側電極、２５……プ
ロテクタ、２７Ａ，２７Ｂ……コンタクトプレー
ト。 1 to 3 show embodiments of the present invention,
Figure 1 is a longitudinal sectional view of the oxygen sensor, Figure 2 is a sectional view in the direction of the arrow in Figure 1, Figure 3 is an overall configuration diagram showing the oxygen sensor installed in a V-type engine, and Figure 4. 6 to 6 show the prior art, FIG. 4 is a longitudinal sectional view of an oxygen sensor, FIG. 5 is a sectional view in the direction indicated by the arrow in FIG. 4, and FIG. 6 is an oxygen sensor installed in a V-type engine. It is an overall configuration diagram showing the state. 2... Sensor main body, 6... Zirconia tube (oxygen concentration detection element), 22A, 22B... Outer electrode, 23A, 23B... Inner electrode, 25... Protector, 27A, 27B... Contact plate.

Claims

[Scope of utility model registration request]

A sensor body, an oxygen concentration detection element in the form of a covered cylinder, which is attached to the sensor body with one end serving as an opening and the other end protruding outside the sensor body and serving as a closed end, and an inner part of the oxygen concentration detection element. , a pair of inner electrodes and a pair of outer electrodes provided on the outer surface and facing each other in the diametrical direction of the enzyme concentration detection element;
a covered cylindrical protector that surrounds a protruding portion of the oxygen concentration detection element and is fixed to the sensor body and introduces external gas from different directions toward each of the outer electrodes, and detection from the oxygen concentration detection element; An oxygen sensor comprising a pair of contact plates spaced apart from each other within the sensor body so as to individually lead out signals to the outside via each inner electrode.