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Novel chip type potentiometric automobile oxygen sensor and preparation method thereof

An automotive oxygen sensor and sensor technology, which is applied in instruments, scientific instruments, measuring devices, etc., can solve the problems of high molding cost, complex gas chamber layer structure, inconvenient miniaturization of oxygen sensors, etc., and achieve good production consistency and shorten the starting time. burning time, compact structure effect

Pending Publication Date: 2017-05-24
莱鼎电子材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the air cell layer is complex, the molding cost is high, and the oxygen sensor is not easy to miniaturize

Method used

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  • Novel chip type potentiometric automobile oxygen sensor and preparation method thereof
  • Novel chip type potentiometric automobile oxygen sensor and preparation method thereof
  • Novel chip type potentiometric automobile oxygen sensor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0048] The new chip concentration type automobile oxygen sensor of this embodiment, as figure 2 As shown, the sensor includes a protective layer, a signal layer and a heating layer that are sequentially stacked from top to bottom and then sintered;

[0049] The signal layer includes the first layer of cast substrate 1, the second layer of cast substrate 2, the third layer of cast substrate 3, the fourth layer of cast substrate 4, and the fifth layer stacked sequentially from top to bottom. Casting substrate 5, the sixth layer of casting substrate 6 and the seventh layer of casting substrate 7, an external reaction electrode 23 is arranged on the upper surface of the first layer of casting substrate 1, and the upper surface of the external reaction electrode 23 An upper outer reaction electrode insulating layer 24 and a lower outer reaction electrode insulating layer 22 are respectively arranged on the lower surface, and a protective layer 25 is also laminated on the upper sur...

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Abstract

The invention relates to a novel chip type potentiometric automobile oxygen sensor. The sensor comprises a protective layer, a signal layer and a heating layer, which are sequentially superposed, wherein the signal layer comprises seven layers of tape casting substrates which are sequentially laminated, the protective layer, an upper reactive electrode insulating layer, an outer reactive electrode and a lower reactive electrode insulating layer are sequentially arranged on the upper surface of the first layer of tape casting substrate from top to bottom, and an upper reference reactive electrode insulating layer, a reference reactive electrode and a lower reference reactive electrode insulating layer are sequentially arranged on the lower surface of the fourth layer of tape casting substrate from top to bottom; the heating layer comprises fourth layers of tape casting substrates which are sequentially laminated, and a heating electrode and a heating electrode pin are respectively arranged on the upper surface of the uppermost layer of tape casting substrate and the lower surface of the lowermost layer of tape casting substrate. The sensor is prepared by preparation of multiple kinds of tape casting slurry, tape casting forming, edge removal slitting, punching, printing, superposition, vacuum sealing molding, hot isostatic pressing, slitting and sintering. The oxygen sensor has the advantages of being more stable in performance and higher in production consistency.

Description

technical field [0001] The invention belongs to the technical field of automobile oxygen sensors, in particular to a novel chip concentration type automobile oxygen sensor and a preparation method thereof. Background technique [0002] The flat-panel automotive oxygen sensor has become a new research hotspot due to its fast response, small structure, low energy consumption, and ease of automated mass production. [0003] Among them, the flat concentration type oxygen sensor is a common structure, such as figure 1 As shown, the whole is a multilayer structure, including ZrO 2 Matrix, Al 2 o 3 Insulation layer, Pt heater, gas chamber layer, YSZ solid electrolyte, Pt electrode and porous protective layer. The core component of the oxygen sensor with this structure is the YSZ solid electrolyte, which forms a concentration difference battery with the inner and outer electrodes; 2- The form of the oxygen migrates to the low-concentration side through the oxygen vacancies, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/407G01N27/409
CPCG01N27/4071G01N27/4075G01N27/409
Inventor 黄海琴陈圣龙韩旭
Owner 莱鼎电子材料科技有限公司
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