CN205484186U - Oxygen sensor - Google Patents
Oxygen sensor Download PDFInfo
- Publication number
- CN205484186U CN205484186U CN201620021870.1U CN201620021870U CN205484186U CN 205484186 U CN205484186 U CN 205484186U CN 201620021870 U CN201620021870 U CN 201620021870U CN 205484186 U CN205484186 U CN 205484186U
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- electrode
- layer
- oxygen sensor
- base member
- working electrode
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Abstract
The utility model provides an oxygen sensor, the stainless steel hollow cylinder base member of insulating layer and the annular diaphragm that set up at cylinder base member outer peripheral surface are plated including the surface, the cylinder base member outer peripheral face on annular diaphragm upper portion is equipped with the screw thread, and the cylinder base member outer peripheral face of annular diaphragm lower part has set gradually ceramic layer, solid electrolyte layer, aluminium oxide compacted zone and colloid protective layer, set gradually from bottom to top on the ceramic layer pierce through the ceramic layer be the platinum electrode layer working electrode, reference electrode and to the electrode, the one side that working electrode, reference electrode reached the electrode all contacts with solid electrolyte layer, and the another side that working electrode reached the electrode is linked together with the outside through the air inlet through hole who sets up on the cylinder base member, working electrode, reference electrode and be connected with corresponding external conductor respectively the electrode. The utility model discloses having avoided the use metallic lead, having stopped the lead contamination, the long service life simultaneous measurement is accurate, simple structure, convenient to use, green.
Description
Technical field
This utility model relates to a kind of oxygen sensor, and a kind of unleaded environmental protection oxygen passes
Sensor.
Background technology
Oxygen sensor is based on electrochemical gas Cleaning Principle, for detecting quilt in chemical reaction
The chemicals aoxidized or decompose or gas.At present, the normal-temperature electrochemical oxygen sensor on market
It is lead-air galvanic cell type sensor, and lead is poisonous and harmful substance, easily causes environmental pollution
Problem, so researching and developing unleaded oxygen sensor to meet reality environmental requirement, develops unleaded oxygen
Sensor is also the research tendency of current the art.
Utility model content
In order to overcome the deficiencies in the prior art, this utility model provides a kind of oxygen sensor,
Its simple in construction, spirit lightness be high and unleaded pollution problem.
This utility model solves its technical problem and be the technical scheme is that a kind of oxygen sensor
Device, is coated with the rustless steel hollow cylinder matrix of insulating barrier including surface and is arranged on outside cylinder matrix
The toroidal membrane of circumferential surface, the cylinder matrix outer peripheral face on described toroidal membrane top is provided with spiral shell
Stricture of vagina, the cylinder matrix outer peripheral face of toroidal membrane bottom is disposed with ceramic layer, solid electrolyte
Layer, aluminium oxide compacted zone and colloid protective layer, described ceramic layer is disposed with from bottom to top
Penetrate ceramic layer is the working electrode of platinum electrode layer, reference electrode and to electrode, described work
Make electrode, reference electrode and the one side of electrode all contacted with solid electrolyte layer, working electrode
And to the another side of electrode by the air inlet through hole that is arranged on cylinder matrix be connected externally to lead to,
Described working electrode, reference electrode and electrode is connected with corresponding outer lead respectively.
Preferably, described toroidal membrane is formed in one with cylinder matrix.
Preferably, described colloid protective layer is epoxy resin layer.
Preferably, it is fixed with metal protector by described toroidal membrane, metal protector sets
It is equipped with the passage importing extraneous gas.
Preferably, at the inner lower air inlet of described cylinder matrix, it is provided with drainage screen, in order to
Solid impurity in gas is avoided to enter and block described air inlet through hole.
Preferably, described toroidal membrane top is provided with plastic cap nut, installs front installation in order to avoiding
Screw thread is damaged by external environment condition.
Good effect of the present utility model: this utility model avoids use metallic lead, stops
Lead contamination, and it is provided with protector, nut and drainage screen, effectively prevent external environment condition to biography
The damage that sensor causes, and use rustless steel, platinum electrode and solid electrolyte, it is non-
The material of consumption-type, and being arranged on of compacted zone and protective layer ensures sensor service life
Also ensure that the accuracy of measurement simultaneously.This utility model simple in construction in a word, easy to use,
Environmental protection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail.
With reference to Fig. 1, this utility model preferred embodiment provides a kind of oxygen sensor, including table
Face is coated with the rustless steel hollow cylinder matrix 1 of insulating barrier and is arranged on cylinder matrix 1 cylindrical weekly form
The toroidal membrane 2 in face, cylinder matrix 1 outer peripheral face on described toroidal membrane 2 top is provided with screw thread,
Cylinder matrix 1 outer peripheral face of toroidal membrane 2 bottom is disposed with ceramic layer 3, solid electrolytic
Matter layer 4, aluminium oxide compacted zone 5 and colloid protective layer 6, on described ceramic layer 3 from bottom to top
Be disposed with penetrate ceramic layer be the working electrode of platinum electrode layer, reference electrode and to electricity
Pole (does not marks in figure), described working electrode, reference electrode and to the one side of electrode all with solid
Body dielectric substrate contacts, working electrode and to the another side of electrode by being arranged on cylinder matrix
Air inlet through hole 7 be connected externally to lead to, described working electrode, reference electrode and to electrode respectively
Connect with corresponding outer lead 8.
Described toroidal membrane 2 is formed in one with cylinder matrix 1.
Described colloid protective layer 6 is epoxy resin layer.
It is fixed with metal protector 9 by described toroidal membrane 2, metal protector 9 is arranged
There is the passage 10 importing extraneous gas.
It is provided with drainage screen 11, in order to keep away at the inner lower air inlet of described cylinder matrix 1
Exempt from solid impurity in gas to enter and block described air inlet through hole.
Described toroidal membrane 2 top is provided with plastic cap nut 12, in order to install spiral shell before avoiding installing
Stricture of vagina is damaged by external environment condition.
This utility model avoids use metallic lead, has stopped lead contamination, and be provided with protector,
Nut and drainage screen, effectively prevent the damage that sensor is caused by external environment condition, and use
It is rustless steel, platinum electrode and solid electrolyte, is the material of on-consumable type, and compacted zone
With protective layer be arranged on guarantee sensor service life while also ensure that the accurate of measurement
Property.
Above-described only preferred embodiment of the present utility model, be it should be understood that above
The explanation of embodiment is only intended to help to understand method of the present utility model and core concept thereof, and
Be not used in restriction protection domain of the present utility model, all thought of the present utility model and principle it
Interior done any amendment, equivalent etc., should be included in protection model of the present utility model
Within enclosing.
Claims (6)
1. an oxygen sensor, it is characterised in that: include that surface is coated with the stainless of insulating barrier
Steel hollow cylinder matrix and the toroidal membrane being arranged on cylinder matrix external peripheral surface, described annular
The cylinder matrix outer peripheral face on dividing plate top is provided with screw thread, the cylinder matrix periphery of toroidal membrane bottom
Face is disposed with ceramic layer, solid electrolyte layer, aluminium oxide compacted zone and colloid protective layer,
The work being platinum electrode layer penetrating ceramic layer it is disposed with from bottom to top on described ceramic layer
Make electrode, reference electrode and to electrode, described working electrode, reference electrode and to electrode one
Face all contacts with solid electrolyte layer, working electrode and to the another side of electrode by being arranged on post
Air inlet through hole on body matrix be connected externally to lead to, described working electrode, reference electrode and to electricity
Pole connects with corresponding outer lead respectively.
A kind of oxygen sensor the most according to claim 1, it is characterised in that: described
Toroidal membrane is formed in one with cylinder matrix.
A kind of oxygen sensor the most according to claim 1, it is characterised in that: described
Colloid protective layer is epoxy resin layer.
A kind of oxygen sensor the most according to claim 1, it is characterised in that: pass through
Described toroidal membrane is fixed with metal protector, and metal protector is provided with importing extraneous gas
Passage.
A kind of oxygen sensor the most according to claim 1, it is characterised in that: described
It is provided with drainage screen at the inner lower air inlet of cylinder matrix.
A kind of oxygen sensor the most according to claim 1, it is characterised in that: described
Toroidal membrane top is provided with plastic cap nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021870.1U CN205484186U (en) | 2016-01-11 | 2016-01-11 | Oxygen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021870.1U CN205484186U (en) | 2016-01-11 | 2016-01-11 | Oxygen sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205484186U true CN205484186U (en) | 2016-08-17 |
Family
ID=56665891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620021870.1U Active CN205484186U (en) | 2016-01-11 | 2016-01-11 | Oxygen sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205484186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459472A (en) * | 2018-11-07 | 2019-03-12 | 柳州国福科技有限公司 | A kind of processing technology of humidity sensor |
-
2016
- 2016-01-11 CN CN201620021870.1U patent/CN205484186U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459472A (en) * | 2018-11-07 | 2019-03-12 | 柳州国福科技有限公司 | A kind of processing technology of humidity sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |