Automobile chip wide domain oxygen sensor using standard signal output

A vehicle-used oxygen sensor and standard signal technology, which is applied in the field of auto parts, can solve the problems of difficult to guarantee the service life of the oxygen sensor, increase the maintenance and replacement cost of users, and reduce the control accuracy of EFI, so as to achieve the reduction of the number of bonding layers and high temperature resistance. Improved burst performance, reduced interference effect

Active Publication Date: 2011-01-12
JINTAN JONSSEN ELECTRIC TECH CORP
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Problems solved by technology

The oxygen sensor will age with the prolongation of use time. During the aging process, the signal will drift, and the signal drift will reduce the accuracy of the oxygen sensor, thereby reducing the accu

Method used

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  • Automobile chip wide domain oxygen sensor using standard signal output
  • Automobile chip wide domain oxygen sensor using standard signal output
  • Automobile chip wide domain oxygen sensor using standard signal output

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[0019] The chip type wide-area standard signal output vehicle oxygen sensor, such as figure 2 As shown, it consists of a porous protective layer 1, an oxygen pump outer electrode 21, an oxygen pump base layer 22, an oxygen pump inner electrode 23, a reaction base layer 24, an inner reaction electrode layer 25, and a multilayer ceramic gas exchange layer from top to bottom. 26. The upper heating base layer 27, the heating electrode layer 28, the lower heating base layer 29 and the heating electrode pins 30 are composed of the porous protective layer 1 being a porous ceramic protective layer made of alumina; the oxygen pump base layer 22 is made of oxidation The yttrium-stabilized zirconia powder is made into a substrate. On this substrate, the oxygen pump outer electrode 21 is printed with platinum paste, and the two form the first layer of sheet A; the reaction substrate layer 24 is made of yttria-stabilized zirconia For the substrate made of powder, the inner reaction electrod...

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Abstract

The invention provides an automobile chip wide domain oxygen sensor using standard signal output, which consists of a porous protective layer, an oxygen pump external electrode, an oxygen pump matrix layer, an oxygen pump internal electrode, a reaction matrix layer, an inner reaction electrode layer, a multilayer ceramic gas exchange layer, an upper heating matrix layer, a heating electrode layer, a lower heating matrix layer and heating electrode pins, wherein, the oxygen pump matrix layer and the reaction matrix layer are zirconium oxide substrates stabilized by yttrium oxide; the multilayer ceramic gas exchange layer, the upper heating matrix layer and the lower heating matrix layer are substrates made by compounding aluminum oxide, magnesium oxide and barium oxide according to a certain proportion; and the layers are printed with electrodes, laminated and integrated together by a sintering mode. The substrates made from the aluminum oxide, the magnesium oxide and the barium oxide has good insulating property and the same sintering temperature and thermal expansion coefficient as zirconium oxide, thus lowering possibility that the layers of the automobile oxygen sensor are cracked and disabled owing to thermal shock; and the substrates have good insulating strength, thus reducing interference of voltage of heating electrodes on a signal circuit.

Description

【Technical field】 [0001] The invention relates to an automobile component, in particular to an oxygen sensor for an automobile. 【Background technique】 [0002] Vehicle emissions are a major factor in modern pollution, and developed countries have long enacted strict emission regulations. my country currently enforces the National III emission standards, and many large cities have already implemented the National IV emission standards. To meet emission requirements, the engine must use electronic fuel injection technology. The oxygen sensor is a key component in gasoline engine electronic fuel injection technology, which controls the fuel injection quantity by detecting the oxygen content in the exhaust gas of the automobile engine. To fully meet the National III and stricter emission requirements, it is also required to use an oxygen sensor to monitor the working status of the entire engine system, so an oxygen sensor needs to be installed after the three-way catalysis. ...

Claims

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Application Information

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IPC IPC(8): G01N27/41
Inventor 陈烈
Owner JINTAN JONSSEN ELECTRIC TECH CORP
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