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Reference pump current type oxygen sensor

A technology of oxygen sensor and pump current, applied in the field of oxygen sensor, can solve the problems of low signal accuracy, slow engine fast preparation speed, etc., and achieve the effect of improving signal accuracy and

Inactive Publication Date: 2020-08-11
SHENZHEN AMPRON TECH CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The invention provides a reference pump current type oxygen sensor, which solves the problems of low signal accuracy of the existing oxygen sensor and slow engine preparation speed through technical transformation of the existing oxygen sensor

Method used

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  • Reference pump current type oxygen sensor

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Embodiment Construction

[0020] The specific content of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Such as Figure 1-3 As shown, this embodiment provides a reference pump amperometric oxygen sensor, including: a signal layer 1, an adhesive layer 2, a heating layer 3, a signal electrode 4, a reference pump electrode 5, a heating electrode 6, and a contact electrode 7. The signal layer 1, the adhesive layer 2 and the heating layer 3 are arranged from top to bottom, the signal layer 1 and the heating layer 3 are bonded together through the adhesive layer 2, and the signal layer 1 is provided with a signal electrode 4 outside, The inside of the signal layer 1 is provided with a reference pump electrode 5, the signal electrode 4 is electrically connected to the reference pump electrode 5, the bottom surface of the heating layer 3 is provided with a contact electrode 7, and the inside of the heating layer 3 is provided with...

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Abstract

The invention provides a reference pump current type oxygen sensor. The sensor comprises a signal layer, a bonding layer, a heating layer, a signal electrode, a reference pump electrode, a heating electrode and a contact electrode. The signal layer, the bonding layer and the heating layer are arranged from top to bottom. The signal layer and the heating layer are bonded together through the bonding layer. A signal electrode is arranged outside the signal layer, a reference pump electrode is arranged inside the signal layer, the signal electrode is electrically connected with the reference pumpelectrode, a contact electrode is arranged on the lower bottom surface of the heating layer, a heating electrode is arranged inside the heating layer, and the contact electrode is electrically connected with the heating electrode. A traditional reference air oxygen sensor structure is changed into a reference pump current type, an engine can operate under the condition that lambda is equal to 1,pollutant emission is reduced, and meanwhile the signal precision and the rapid preparation speed after the engine is started are improved.

Description

technical field [0001] The invention relates to the technical field of oxygen sensors, in particular to a reference pump current type oxygen sensor. Background technique [0002] With the continuous increase in the number of domestic automobiles, the environmental pollution caused by exhaust gas is becoming more and more serious. Therefore, the national standards for automobile exhaust emissions are constantly being updated and increasingly strict. Countries around the world have also formulated increasingly strict automobile emission standards. It is reported that the European Union has implemented the Euro IV standard since 2009, and its restrictions on motor vehicle emissions such as nitrogen oxides, hydrocarbons, carbon monoxide and suspended particles are more stringent. In China, National V (equivalent to Euro IV standard in Europe) is one of the current exhaust emission standards stipulated by the state, while the "National VI" standard is expected to be fully impleme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/41
CPCG01N27/41
Inventor 吴永文黄宗波王志伟
Owner SHENZHEN AMPRON TECH CORP
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