CN2886565Y - Electrochemical poison gas sensor - Google Patents
Electrochemical poison gas sensor Download PDFInfo
- Publication number
- CN2886565Y CN2886565Y CN 200520029659 CN200520029659U CN2886565Y CN 2886565 Y CN2886565 Y CN 2886565Y CN 200520029659 CN200520029659 CN 200520029659 CN 200520029659 U CN200520029659 U CN 200520029659U CN 2886565 Y CN2886565 Y CN 2886565Y
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- electrode
- sensor
- hole
- ring seal
- gas
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Abstract
The utility model relates to a electrochemical poisonous gas sensor, comprising a sensor electrode lead (5), a gas diffusion hole (6), a gas pressure division hole (7), an liquid injection and penetration hole (8), a working electrode (9), a reference electrode (10), an auxiliary electrode (11), a fluid storage groove (12), and a sensor lower protecting cover (16). The following mechanisms are also included: a sensor upper protection casing (1), an electrode and sealing ring support (2), a gas diffusion base (3), a sealing ring (4), a liquid sealing cover (13), an electrode wiring board (14), a sensor lower protection cover (16), and an electrode wiring terminal (15). Totally-enclosed elemental safe casing assembly is adopted in the utility model, the gas reaction is arranged at one side of the sensor, the liquid injection hole and diffusion hole are both arranged in the sensor, thereby the problem of sensor life time attenuation caused by electrolyte leakage and liquid evaporation is effectively solved. The utility model is applicable to a plurality of poisonous gas sensors.
Description
Technical field
The utility model belongs to the galvanochemistry poisonous gas sensor.
Background technology
The galvanochemistry poisonous gas sensor of Britain Citytech company design adopts outside fluid injection mode, O type circle upper and lower surface two way seal, and the technological requirement complexity, liquid injection hole directly has influence on the sensor sealing effectiveness.Electrode terminal is directly injection-moulded on the sensor housing, can't satisfy the integrated needs of circuit height.
Summary of the invention
In order to solve the reliability of the encapsulation of sensor liquid, electrode connection; satisfy sensor and the integrated needs of electronic circuit height; this sensor takes electrode, barrier film, imbibition material to be placed on sensor gas infiltration end by lamination; liquid injection hole and liquid-leadage hole are arranged on sensor internal, and over cap adopts poured with epoxy resin to solidify sealing under hydraulic seal lid, hopper and the sensor.Reserve the space of placing the electrode connection plate at the sensor downside, electrode terminal and contact conductor are fixed on the circuit board by welding manner.
The utility model sensor can effectively slow down the evaporation of hopper electrolytic solution, and prevents the electrolytic solution leakage, thereby has prolonged the serviceable life of sensor, strengthens working sensor stability.Reliability and the sensor and the integrated needs of electronic circuit height of the electric performance of sensor have been guaranteed simultaneously.
Sensor outer housing employing essential safety, the engineering plastics injection moulding that chemical property is stable process, and have improved the stability of sensor performance.
Formation accompanying drawings of the present utility model is as follows:
Containment vessel 1 plays the effect of protection sensor internal structure on the sensor of the present utility model, and the centre position, upper end is provided with the partial pressure hole; Electrode, O-ring seal supporter 2 belong to the hollow shape structure, and the center is provided with fluid injection, liquid-leadage hole 8, connect with catalysis electrode, gaseous diffusion base, hydraulic seal lid, be used for support works electrode 9, contrast electrode 10, auxiliary electrode 11, and as the electrolytic solution memory space; Gaseous diffusion builds 3, connects with catalysis electrode, and pilot-gas is diffused into the amount of working electrode; O-ring seal 4 builds 3 and O-ring seal supporter 2 close-coupled with gaseous diffusion respectively, and closely cooperating by two parts becomes O type cast, and then reaches the effect of hydraulic seal, effectively prevents leakage; Sensor electrode lead-in wire 5 connects with catalysis electrode with the electrode connection plate respectively, is used to connect working electrode 9, contrast electrode 10, auxiliary electrode 11 and binding post 15; Gas diffusion hole 6 is that gaseous diffusion is built one group of diffusion hole of 3, is used for pilot-gas and is diffused into catalysis electrode; Partial pressure hole 7 is holes of containment vessel 1 on the sensor, is used to adjust the amount that ambient atmos enters sensor internal; Liquid filling and leaking hole 8 both sides contact with catalysis electrode and liquid respectively, are used for perfusion fluid and guarantee that liquid is diffused into the catalysis electrode position from liquid bath; The 9th, working electrode, the 10th, contrast electrode, the 11st, auxiliary electrode connects with contact conductor respectively; Hopper 12 is O-ring seal supporter 2 dorsal part spaces, connects with hydraulic seal lid 13, stores electrolytic solution; Hydraulic seal lid 13 is to connect seal sensor electrolytic solution with O-ring seal supporter 2; Electrode connection plate 14 is to connect with hydraulic seal lid 13, is used to weld binding post and electrode cable; Electrode terminal 15 is to connect with the electrode connection plate; Over cap 16 under the sensor, connect with containment vessel 1 on the sensor by fluid sealant, are used to protect inner structure.
The beneficial effects of the utility model: the utility model sensor adopts the shell of essential safety, and liquid injection hole is located at sensor internal, can effectively prevent the seepage and the evaporation of liquid, thus life-saving.The setting of electrode connection plate can guarantee the reliability of the electric connection of sensor, and guarantees sensor and the integrated needs of electronic circuit height.It goes for multiple poison gas and detects.
Description of drawings
Fig. 1 is the longitudinal profile synoptic diagram of galvanochemistry poisonous gas sensor structure.Among the figure, containment vessel on 1 sensor; 2 electrodes, O-ring seal supporter; 3 gaseous diffusion are built; 4 O-ring seals; 5 sensor electrodes lead-in wire; 6 gas diffusion holes; 7 partial pressure holes; 8 fluid injections, liquid-leadage hole; 9 working electrodes; 10 contrast electrodes; 11 auxiliary electrodes; 12 hoppers; 13 hydraulic seals lid; 14 electrode connection plates; 15 electrode terminals; Over cap under 16 sensors.
Embodiment
Embodiment 1
The utility model embodiment accompanying drawings is as follows: containment vessel on 1 sensor; 2 electrodes, O-ring seal supporter; 3 gaseous diffusion are built; 4 O-ring seals; 5 sensor electrodes lead-in wire; 6 gas diffusion holes; 7 partial pressure holes; 8 fluid injections, liquid-leadage hole; 9 working electrodes; 10 contrast electrodes; 11 auxiliary electrodes; 12 hoppers; 13 hydraulic seals lid; 14 electrode connection plates; 15 electrode terminals; Over cap under 16 sensors.
Containment vessel 1 plays the effect of protection sensor internal structure on the sensor of the present utility model, and the centre position, upper end is provided with the partial pressure hole; Electrode, O-ring seal supporter 2 belong to the hollow shape structure, and the center is provided with fluid injection, liquid-leadage hole 8, connect with catalysis electrode, gaseous diffusion base, hydraulic seal lid, be used for support works electrode 9, contrast electrode 10, auxiliary electrode 11, and as the electrolytic solution memory space; Gaseous diffusion builds 3, connects with catalysis electrode, and pilot-gas is diffused into the amount of working electrode; O-ring seal 4 builds 3 and O-ring seal supporter 2 close-coupled with gaseous diffusion respectively, and closely cooperating by two parts becomes O type cast, and then reaches the effect of hydraulic seal, effectively prevents leakage; Sensor electrode lead-in wire 5 connects with catalysis electrode with the electrode connection plate respectively, is used to connect working electrode 9, contrast electrode 10, auxiliary electrode 11 and binding post 15; Gas diffusion hole 6 is that gaseous diffusion is built one group of diffusion hole of 3, is used for pilot-gas and is diffused into catalysis electrode; Partial pressure hole 7 is holes of containment vessel 1 on the sensor, is used to adjust the amount that ambient atmos enters sensor internal; Liquid filling and leaking hole 8 both sides contact with catalysis electrode and liquid respectively, are used for perfusion fluid and guarantee that liquid is diffused into the catalysis electrode position from liquid bath; The 9th, working electrode, the 10th, contrast electrode, the 11st, auxiliary electrode connects with contact conductor respectively; Hopper 12 is O-ring seal supporter 2 dorsal part spaces, connects with hydraulic seal lid 13, stores electrolytic solution; Hydraulic seal lid 13 is to connect seal sensor electrolytic solution with O-ring seal supporter 2; Electrode connection plate 14 is to connect with hydraulic seal lid 13, is used to weld binding post and electrode cable; Electrode terminal 15 is to connect with the electrode connection plate; Over cap 16 under the sensor, connect with containment vessel 1 on the sensor by fluid sealant, are used to protect inner structure.
Claims (1)
1, a kind of galvanochemistry poisonous gas sensor, it comprises: sensor electrode lead-in wire (5); Gas diffusion hole (6); Partial pressure hole (7); Liquid filling and leaking hole (8); Working electrode (9); Contrast electrode (10); Auxiliary electrode (11); Hopper (12); Over cap under the sensor (16); It is characterized in that: it also comprises following structure: containment vessel on the sensor (1), electrode and O-ring seal supporter (2), gaseous diffusion are built over cap (16), electrode terminal (15) under (3), O-ring seal (4), hydraulic seal lid (13), electrode connection plate (14), the sensor;
Over cap (16) connects by fluid sealant under containment vessel on the said sensor (1) and the sensor; Containment vessel on the sensor (1) upper end interposition is equipped with partial pressure hole (7); There is liquid filling and leaking hole (8) at electrode and O-ring seal supporter (2) center, connect with working electrode (9), contrast electrode (10), auxiliary electrode (11), gaseous diffusion base (3) and hydraulic seal lid (13); Gaseous diffusion is built (3) and is connected with working electrode (9), contrast electrode (10), auxiliary electrode (11); O-ring seal (4) is built (3), electrode and O-ring seal supporter (2) with gaseous diffusion and is connected; Sensor electrode lead-in wire (5) connects with working electrode (9), contrast electrode (10), auxiliary electrode (11) with the electrode connection plate respectively; Gas diffusion hole (6) is that gaseous diffusion is built one group of diffusion hole of (3); Partial pressure hole (7) is the hole of containment vessel on the sensor (1); Liquid filling and leaking hole (8) both sides contact with working electrode 9, contrast electrode 10, auxiliary electrode 11 and liquid respectively; (9) be working electrode, (10) are contrast electrodes, and (11) are auxiliary electrodes, connect with contact conductor respectively; Hopper (12) is electrode and O-ring seal supporter (2) dorsal part space, connects with hydraulic seal lid (13); Hydraulic seal lid (13) is to connect with electrode and O-ring seal supporter (2); Electrode connection plate (14) is to connect with hydraulic seal lid (13), is used to weld binding post and electrode cable; Electrode terminal (15) is to connect with the electrode connection plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520029659 CN2886565Y (en) | 2005-12-30 | 2005-12-30 | Electrochemical poison gas sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520029659 CN2886565Y (en) | 2005-12-30 | 2005-12-30 | Electrochemical poison gas sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2886565Y true CN2886565Y (en) | 2007-04-04 |
Family
ID=37961654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520029659 Expired - Lifetime CN2886565Y (en) | 2005-12-30 | 2005-12-30 | Electrochemical poison gas sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2886565Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435789B (en) * | 2008-12-23 | 2012-01-25 | 中国科学院长春应用化学研究所 | Electrochemical diffusion type gas sensor |
| CN101595381B (en) * | 2007-07-20 | 2012-11-14 | 松下电器产业株式会社 | Electrode plate for electrochemical measurement, electrochemical measuring apparatus having the electrode plate, and method for determining target substance by using the electrode plate |
| CN103217464A (en) * | 2013-03-22 | 2013-07-24 | 无锡高顿传感技术有限公司 | Gas sensor |
| WO2017128280A1 (en) * | 2016-01-29 | 2017-08-03 | Honeywell International Inc. | Method for decreasing baseline under high temperature of gas sensor |
-
2005
- 2005-12-30 CN CN 200520029659 patent/CN2886565Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101595381B (en) * | 2007-07-20 | 2012-11-14 | 松下电器产业株式会社 | Electrode plate for electrochemical measurement, electrochemical measuring apparatus having the electrode plate, and method for determining target substance by using the electrode plate |
| CN101435789B (en) * | 2008-12-23 | 2012-01-25 | 中国科学院长春应用化学研究所 | Electrochemical diffusion type gas sensor |
| CN103217464A (en) * | 2013-03-22 | 2013-07-24 | 无锡高顿传感技术有限公司 | Gas sensor |
| CN103217464B (en) * | 2013-03-22 | 2016-03-23 | 无锡高顿传感技术有限公司 | A kind of gas sensor |
| WO2017128280A1 (en) * | 2016-01-29 | 2017-08-03 | Honeywell International Inc. | Method for decreasing baseline under high temperature of gas sensor |
| US11187670B2 (en) | 2016-01-29 | 2021-11-30 | Honeywell International Inc. | Method for decreasing baseline under high temperature of gas sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIHUA UNIVERSITY |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hua Kaifeng Inventor after: Huang Li Inventor after: Sun Gengzhi Inventor after: Wang Yujiang Inventor after: Lv Xiangyu Inventor after: Xu Jianbo Inventor before: Hua Kaifeng Inventor before: Sun Gengzhi Inventor before: Wang Yujiang Inventor before: Lv Xiangyu Inventor before: Xu Jianbo |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HUA KAIFENG SUN GENGZHI WANG YUJIANG LV XIANGYU XU JIANBO TO: HUA KAIFENG HUANG LI SUN GENGZHI WANG YUJIANG LV XIANGYU XU JIANBO |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100727 Address after: 130022 Changchun people's street, Jilin, No. 5625 Co-patentee after: Beihua University Patentee after: Changchun Institue of Applied Chemistry, Chinese Academy of Sciences Address before: 130022 Changchun people's street, Jilin, No. 5625 Patentee before: Changchun Institue of Applied Chemistry, Chinese Academy of Sciences |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070404 |
|
| EXPY | Termination of patent right or utility model |