Chip type oxygen sensor for novel double battery type motorcycle and preparation method thereof

An oxygen sensor and dual-battery technology, applied in the field of a new type of dual-battery type motorcycle chip oxygen sensor and its preparation, can solve the problems of poor precision and large volume, achieve improved response time and signal stability, reduced size, The effect of improving test accuracy and test accuracy

Active Publication Date: 2018-12-07
成都科锐传感技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a novel double-battery type motorcycle chip oxygen sensor and its preparation method, which is used to solve the problem that the chip structure chip in the prior art is mainly composed of a full zirconia structure. There are problems that lead to its large volume, and the problem of poor accuracy caused by the output signal of the chip structure chip in the prior art is a switching value

Method used

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  • Chip type oxygen sensor for novel double battery type motorcycle and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0042] Such as figure 1 As shown, the sensor includes a porous and outer protective layer 1, an oxygen pump cell 2, a reference cell 3, and a heating layer 4. Each layer is laminated from top to bottom and then sintered. The porous and outer protective layer 1 comprises a combination of a porous alumina layer 11 made of a porous alumina casting substrate and an alumina layer 12 made of an alumina casting substrate. The porous alumina layer 11 completely covers the pump. Oxygen external electrode 21, the aluminum oxide layer 12 covers the external electrode leads, the sensor signal is led out from the through holes on the aluminum oxide layer 12 and the electrode pins. The electrode pins include a first pin 13, a second pin 14 and a third lead Foot 15. The pumping oxygen cell 2 includes a first zirconia cast substrate. The upper surface of the first zirconia cast substrate is provided with a pumping oxygen external electric stage 21. The pumping oxygen external electric stage 2...

Embodiment 2

[0044] The manufacturing method of a novel double-battery type oxygen sensor for motorcycles includes the following steps:

[0045] Step S1: preparing zirconia ceramic slurry, alumina ceramic slurry and porous alumina ceramic slurry:

[0046] (1) Mix zirconium oxide, yttrium oxide, aluminum oxide 1, solvent, dispersant, binder, and plasticizer according to mass percentage: 40:6:10:35:1:5:3, and then ball mill to form Zirconia ceramic slurry;

[0047] Mix alumina 1, alumina 2, sintering aids, solvents, dispersants, binders, and plasticizers according to mass percentage: 40:4:4:40:2:5:5, and then ball mill to form oxidation Aluminum ceramic paste;

[0048] Mix alumina 1, alumina 2, carbon powder, solvent, dispersant, binder, and plasticizer according to mass percentage: 25:8:7:50:1:5:4, and then ball mill to form porous oxidation Aluminum ceramic paste;

[0049] Among them, the particle size range of alumina 1 (D50): 0.1μm, the specific surface area range: 10m 2 / g; Alumina 2 particle ...

Embodiment 3

[0059] Step S1: preparing zirconia ceramic slurry, alumina ceramic slurry and porous alumina ceramic slurry:

[0060] Mix zirconium oxide, yttrium oxide, aluminum oxide 1, solvent, dispersant, binder, and plasticizer according to mass percentage: 48:6.5:9:25:2.5:4.5:4.5, and then ball mill to form zirconia ceramics Slurry

[0061] Mix alumina 1, alumina 2, sintering aids, solvents, dispersants, binders, and plasticizers according to mass percentage: 48.5:3:5:35:1.5:4:3, and then ball mill to form oxidation Aluminum ceramic paste;

[0062] Mix alumina 1, alumina 2, carbon powder, solvent, dispersant, binder, and plasticizer according to mass percentage: 33.5:4:4:48:1.5:6:3, and then ball mill to form porous oxidation Aluminum ceramic slurry; the particle size range of alumina 1 (D50): 0.8μm, the specific surface area range: 6m 2 / g; Alumina 2 particle size range (D50): 2μm, specific surface area range: 60m 2 / g;

[0063] Step S2: Use the casting method to cast the above three ceramic...

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Abstract

The invention discloses a chip type oxygen sensor for a novel double battery type motorcycle. The chip type oxygen sensor is formed by sintering a porous outer protective layer, a pumping oxygen battery, a reference battery and a heating layer; the pumping oxygen battery comprises a first substrate, a pumping oxygen outer electrode and a pumping oxygen inner electrode; the reference battery includes a second substrate, a test electrode and a reference electrode; and a diffusion barrier and a diffusion chamber are disposed between the pumping oxygen battery and the reference battery. A preparation method of the oxygen sensor comprises preparing zirconia ceramic slurry, alumina ceramic slurry and porous alumina ceramic slurry, preparing substrates by a casting method; preparing the electrodes by screen printing, the diffusion barrier, the diffusion chamber, a heater and pins, and sintering at high temperature. In the chip type oxygen sensor, the heating layer adopts an alumina casting substrate, a double battery structure is adopted, testing precision is improved, and direct contact between the heater and zirconia in the second substrate can be avoided, so that an insulating layer isnot required to be added, and chip volume is reduced.

Description

Technical field [0001] The invention relates to the technical field of oxygen sensors for motorcycles, in particular to a novel double-battery type oxygen sensor for motorcycles and a preparation method thereof. Background technique [0002] In consideration of environmental protection and energy saving, and facing increasingly stringent motorcycle emission regulations, closed-loop controlled electronic fuel injection systems have become an important means of exhaust emission control. Among them, oxygen sensors are essential for closed-loop feedback electronic fuel injection motorcycles. element. The oxygen sensor on the motorcycle cannot block the exhaust pipe and affect the flow of exhaust gas. A small-sized oxygen sensor must be used. At present, most motorcycle oxygen sensors on the market are still tube-type chips. Because they are tube-type, they have a long response time and a large volume. Chip structure chips on the market are dominated by a full zirconia structure, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/409
CPCG01N27/409
Inventor 黄涛包绍明李婷余苗
Owner 成都科锐传感技术有限公司
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