CN208026697U - A kind of carbon monoxide transducer - Google Patents
A kind of carbon monoxide transducer Download PDFInfo
- Publication number
- CN208026697U CN208026697U CN201820263799.7U CN201820263799U CN208026697U CN 208026697 U CN208026697 U CN 208026697U CN 201820263799 U CN201820263799 U CN 201820263799U CN 208026697 U CN208026697 U CN 208026697U
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- China
- Prior art keywords
- insulating trip
- water
- cap body
- carbon monoxide
- gas barrier
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Abstract
The utility model discloses a kind of carbon monoxide transducers, including shell, positive electrode, negative electrode, water-stop sheet, water permeable membrane, ventilating water proof film, the first insulating trip, the second insulating trip, ventilated membrane, sealing ring, gas barrier, filtration core and cap body, second insulating trip is attached on the upper surface of water-stop sheet, the second through-hole is provided at the center of second insulating trip, water permeable membrane is arranged in the second through-hole, and ventilating water proof film is attached on the upper surface of the second insulating trip and the upper surface of ventilating water proof film contacts；Advantage is when the size of pressure on ventilating water proof film changes, second insulating trip can be to the permeable amount polarity limit of water permeable membrane, control its permeable amount, reduce influence of the pressure size to water permeable membrane permeable amount on ventilating water proof film, the conformity error of carbon monoxide transducer testing result is contracted to float between positive and negative 10%, conformity error is relatively low.
Description
Technical field
The utility model is related to a kind of sensors, more particularly, to a kind of carbon monoxide transducer.
Background technology
Existing carbon monoxide transducer includes mainly shell, positive electrode, negative electrode, water-stop sheet, water permeable membrane, ventilating water proof
Film, insulating trip, ventilated membrane, sealing ring, gas barrier, the filtration core of cylinder and cap body, water-stop sheet be fixed in shell and
Enclosure interior is divided into upper chamber and lower chambers, bottom chamber is equipped with ultra-pure water, and there are two water hole, mistakes for setting on water-stop sheet
The aperture in water hole is usually 0.15-0.25mm, and water permeable membrane is attached on the upper surface of water-stop sheet, and ventilating water proof film is attached to permeable
On the upper surface of film, insulating trip is attached on the upper surface of ventilating water proof film, an installation through-hole is equipped at the center of insulating trip, thoroughly
Air film is embedded in installation through-hole, and the size of ventilated membrane is matched with the size of installation through-hole, and the lower part of cap body reaches in upper chamber, cap body
Inside set the inner cavity there are one lower ending opening, gas barrier be arranged at the lower ending opening of cap body and with the cap body lower end face paste
It closes, filtration core is located in inner cavity and is fixedly clamped by cap body and gas barrier, and cap body upper surface is provided with the first air hole, gas barrier
On be provided with the second air hole, sealing ring is sleeved on the outside of gas barrier and cap body lower part, and the upper surface of ventilated membrane is located at sealing ring
Interior and gas barrier lower face contact, the lower face of sealing ring are contacted with the upper surface of insulating trip, and positive electrode is mounted in cap body
On end face, negative electrode is mounted on shell lower face, and plastic sheath is cased with outside shell.
When existing carbon monoxide transducer work, under test gas enters the inner cavity of cap body from the first air hole, passes through
Enter in upper chamber from the second air hole again after filter core.But existing carbon monoxide transducer has the following problems：It is ventilative
Water-separating film is attached on the upper surface of water permeable membrane, and the permeable amount of water permeable membrane can become with the size of pressure on ventilating water proof film
Change, thus causes the conformity error of testing result higher, float between positive and negative 20%.
Invention content
The technical problem to be solved by the utility model is to provide a kind of lower carbon monoxide transducers of conformity error.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of carbon monoxide transducer, including
Shell, positive electrode, negative electrode, water-stop sheet, water permeable membrane, ventilating water proof film, the first insulating trip, ventilated membrane, sealing ring, gas barrier,
Filtration core and cap body, the water-stop sheet are fixed in the shell and the enclosure interior are divided into upper chamber
And lower chambers, the bottom chamber are equipped with ultra-pure water, are arranged on the water-stop sheet there are two water hole, the cap body
Lower part reaches in the upper chamber, and the inner cavity there are one lower ending opening is set in the cap body, and gas barrier setting exists
It is contacted at the lower ending opening of the cap body and with the cap body, the filtration core is located in inner cavity and by the cap body
With the trapping board clamping, the cap body upper surface is provided with the first air hole, second is provided on the gas barrier
Air hole, the sealing ring are sleeved on the outside of the cap body lower part and the gas barrier, first insulating trip
First through hole is equipped at center, the ventilated membrane is arranged in the first through hole, the upper surface position of the ventilated membrane
It is contacted in the sealing ring and with the lower face of the gas barrier, the lower face of the sealing ring and described first
The upper surface of insulating trip contacts, and first insulating trip is attached on the upper surface of the ventilating water proof film, it is described just
Electrode is mounted on the cap body upper surface, and the negative electrode is mounted on the shell lower face, an oxygen
It further includes the second insulating trip to change carbon sensor, and second insulating trip is attached on the upper surface of the water-stop sheet, described
The second insulating trip center at be provided with the second through-hole, the water permeable membrane is arranged in second through-hole, described
Ventilating water proof film is attached on the upper surface of second insulating trip and the contact of the upper surface of the ventilating water proof film.
The filtration core includes according to tactic first filter, cellular inner core and the second mistake from top to bottom
The upper surface of filter disc, first filter is contacted with the upper surface of the inner cavity, the lower end of second filter
Face is contacted with the upper surface of the gas barrier, and the inner core is pressed from both sides by first filter and second filter
Tightly, the material of the inner core is activated carbon.The structure passes through the first filter, the knot of cellular inner core and the second filter
It closes, filtration core has preferable air permeability effect, and the high concentration of carbon monoxide transducer and alcohol is made to restore only to need 25 minutes.
The gas barrier includes plate body, gasket and boss, and fluted, described pad is arranged in the upper surface of the plate body
Piece is located in the groove, and the upper surface of the gasket is flushed with the upper surface of the plate body, and the boss is fixed
It is arranged on the lower face of the plate body, the lower face of the boss is contacted with the upper surface of the ventilated membrane, described
The upper surface of gasket contacted with the lower face of the filtration core, third air hole is provided on the gasket, it is described
Second air hole is located on the plate body, and first air hole, second air hole and the third are ventilative
Hole three is coaxially disposed and is connected to.In the structure, boss and water-stop sheet can clamp ventilated membrane and water permeable membrane, and carbon monoxide is made to pass
Sensor is affected by temperature smaller, and low temperature need to only compensate 10%, and high temperature need to only compensate 1%.
The gas barrier is fixedly connected with before the cap body using laser welding process.It can enhance in the structure
The whole contact performance of gas barrier and cap body, enhances sensitivity.
The thickness of the positive electrode and the negative electrode is 0.3mm, and material is nickel.
The material of the shell is conductive material.In the structure, interference signal can be conducting to by shell dry
It disturbs signal to filter out, reaches jamproof effect.
Compared with prior art, the utility model has the advantage of by the way that the second insulating trip, the attachment of the second insulating trip is arranged
On the upper surface of water-stop sheet, the second through-hole is provided at the center of the second insulating trip, water permeable membrane is arranged in the second through-hole, thoroughly
Air bound moisture film is attached on the upper surface of the second insulating trip and the upper surface of ventilating water proof film contacts, in carbon monoxide transducer work
When making, under test gas enters the inner cavity of cap body from the first air hole, by entering epicoele from the second air hole again after filtration core
Interior, ventilating water proof film are attached on the upper surface of water permeable membrane, when the size of pressure on ventilating water proof film changes, second
Insulating trip can control its permeable amount to the permeable amount polarity limit of water permeable membrane, and pressure size is to permeable on reduction ventilating water proof film
The conformity error of carbon monoxide transducer testing result is contracted to float between positive and negative 10% by the influence of film permeable amount, and one
Cause property error is relatively low.
Description of the drawings
Fig. 1 is the exploded view of the utility model；
Fig. 2 is the stereogram of the utility model；
Fig. 3 is the sectional view of the utility model.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing embodiment.
Embodiment one：As shown, a kind of carbon monoxide transducer, including shell 1, positive electrode 2, negative electrode 3, water-stop sheet
4, water permeable membrane 5, ventilating water proof film 6, the first insulating trip 7, ventilated membrane 8, sealing ring 9, gas barrier, filtration core and cap body 10, water proof
Plate 4 is fixed in shell 1 and will be divided into inside shell 1 upper chamber 11 and lower chambers 12, is equipped in lower chambers 12 ultrapure
Water, there are two water holes 41, the lower part of cap body 10 to reach in upper chamber 11 for setting on water-stop sheet 4, is set in cap body 10 there are one under
The inner cavity of end opening, gas barrier are arranged at the lower ending opening of cap body 10 and are contacted with cap body 10, filtration core be located in inner cavity and
By cap body 10 and trapping board clamping, 10 upper surface of cap body is provided with the first air hole 101, and it is ventilative that second is provided on gas barrier
Hole, sealing ring 9 are sleeved on the outside of cap body 10 lower part and gas barrier, are equipped with first through hole 71 at the center of the first insulating trip 7, breathe freely
Film 8 is arranged in first through hole 71, and the upper surface of ventilated membrane 8 is located in sealing ring 9 and is contacted with the lower face of gas barrier, seals
The lower face of circle 9 is contacted with the upper surface of the first insulating trip 7, and the first insulating trip 7 is attached on the upper surface of ventilating water proof film 6,
Positive electrode 2 is mounted on 10 upper surface of cap body, and negative electrode 3 is mounted on 1 lower face of shell, and carbon monoxide transducer further includes the
Two insulating trips 13, the second insulating trip 13 are attached on the upper surface of water-stop sheet 4, and is provided at the center of the second insulating trip 13
Two through-holes 131, water permeable membrane 5 are arranged in the second through-hole 131, and ventilating water proof film 6 is attached on the upper surface of the second insulating trip 13
And the upper surface contact of ventilating water proof film 6.
In the present embodiment, filtration core includes according to tactic first filter 14, cellular inner core from top to bottom
15 and second filter 16, the upper surface of the first filter 14 contacted with the upper surface of inner cavity, the lower face of the second filter 16
It is contacted with the upper surface of gas barrier, inner core 15 is clamped by the first filter 14 and the second filter 16, and the material of inner core 15 is to live
Property charcoal.
In the present embodiment, gas barrier includes plate body 17, gasket 18 and boss 19, and the upper surface setting of plate body 17 is fluted
20, gasket 18 is located in groove 20, and the upper surface of gasket 18 is flushed with the upper surface of plate body 17, and boss 19 is fixed at plate body
On 17 lower face, the lower face of boss 19 is contacted with the upper surface of ventilated membrane 8, the upper surface of gasket 18 and the second filter 16
Lower face contact, be provided with third air hole 181 on gasket 18, the second air hole is located on plate body 17, the first air hole
101, the second air hole is coaxially disposed and is connected to 181 three of third air hole.
In the present embodiment, plate body 17 is fixedly connected with before cap body 10 using laser welding process.
Embodiment two：As shown, a kind of carbon monoxide transducer, including shell 1, positive electrode 2, negative electrode 3, water-stop sheet
4, water permeable membrane 5, ventilating water proof film 6, the first insulating trip 7, ventilated membrane 8, sealing ring 9, gas barrier, filtration core and cap body 10, water proof
Plate 4 is fixed in shell 1 and will be divided into inside shell 1 upper chamber 11 and lower chambers 12, is equipped in lower chambers 12 ultrapure
Water, there are two water holes 41, the lower part of cap body 10 to reach in upper chamber 11 for setting on water-stop sheet 4, is set in cap body 10 there are one under
The inner cavity of end opening, gas barrier are arranged at the lower ending opening of cap body 10 and are contacted with cap body 10, filtration core be located in inner cavity and
By cap body 10 and trapping board clamping, 10 upper surface of cap body is provided with the first air hole 101, and it is ventilative that second is provided on gas barrier
Hole, sealing ring 9 are sleeved on the outside of cap body 10 lower part and gas barrier, are equipped with first through hole 71 at the center of the first insulating trip 7, breathe freely
Film 8 is arranged in first through hole 71, and the upper surface of ventilated membrane 8 is located in sealing ring 9 and is contacted with the lower face of gas barrier, seals
The lower face of circle 9 is contacted with the upper surface of the first insulating trip 7, and the first insulating trip 7 is attached on the upper surface of ventilating water proof film 6,
Positive electrode 2 is mounted on 10 upper surface of cap body, and negative electrode 3 is mounted on 1 lower face of shell, and carbon monoxide transducer further includes the
Two insulating trips 13, the second insulating trip 13 are attached on the upper surface of water-stop sheet 4, and is provided at the center of the second insulating trip 13
Two through-holes 131, water permeable membrane 5 are arranged in the second through-hole 131, and ventilating water proof film 6 is attached on the upper surface of the second insulating trip 13
And the upper surface contact of ventilating water proof film 6.
In the present embodiment, filtration core includes according to tactic first filter 14, cellular inner core from top to bottom
15 and second filter 16, the upper surface of the first filter 14 contacted with the upper surface of inner cavity, the lower face of the second filter 16
It is contacted with the upper surface of gas barrier, inner core 15 is clamped by the first filter 14 and the second filter 16, and the material of inner core 15 is to live
Property charcoal.
In the present embodiment, gas barrier includes plate body 17, gasket 18 and boss 19, and the upper surface setting of plate body 17 is fluted
20, gasket 18 is located in groove 20, and the upper surface of gasket 18 is flushed with the upper surface of plate body 17, and boss 19 is fixed at plate body
On 17 lower face, the lower face of boss 19 is contacted with the upper surface of ventilated membrane 8, the upper surface of gasket 18 and the second filter 16
Lower face contact, be provided with third air hole 181 on gasket 18, the second air hole is located on plate body 17, the first air hole
101, the second air hole is coaxially disposed and is connected to 181 three of third air hole.
In the present embodiment, plate body 17 is fixedly connected with before cap body 10 using laser welding process.
In the present embodiment, the thickness of positive electrode 2 and negative electrode 3 is 0.3mm, and material is nickel.
In the present embodiment, the material of shell 1 is stainless steel.
Claims (6)
1. a kind of carbon monoxide transducer, including shell, positive electrode, negative electrode, water-stop sheet, water permeable membrane, ventilating water proof film, first
Insulating trip, ventilated membrane, sealing ring, gas barrier, filtration core and cap body, the water-stop sheet be fixed in the shell and
The enclosure interior is divided into upper chamber and lower chambers, the bottom chamber is equipped with ultra-pure water, on the water-stop sheet
There are two water hole, the lower part of the cap body reaches in the upper chamber for setting, sets that there are one lower ends in the cap body
The inner cavity of opening, the gas barrier is arranged at the lower ending opening of the cap body and is contacted with the cap body, described
Filtration core is located in inner cavity and by the cap body and the trapping board clamping, and the cap body upper surface is provided with first thoroughly
Stomata, is provided with the second air hole on the gas barrier, the sealing ring be sleeved on the cap body lower part and it is described every
The outside of gas plate, first through hole is equipped at the center of first insulating trip, and the ventilated membrane is arranged described first
In through-hole, the upper surface of the ventilated membrane is located in the sealing ring and is contacted with the lower face of the gas barrier, institute
The lower face for the sealing ring stated is contacted with the upper surface of first insulating trip, and first insulating trip is attached to described
On the upper surface of ventilating water proof film, the positive electrode is mounted on the cap body upper surface, and the negative electrode is mounted on
On the shell lower face, it is characterised in that the carbon monoxide transducer further includes the second insulating trip, and described second
Insulating trip is attached on the upper surface of the water-stop sheet, and the second through-hole, institute are provided at the center of second insulating trip
The water permeable membrane stated is arranged in second through-hole, and the ventilating water proof film is attached to the upper end of second insulating trip
On the face and upper surface of the ventilating water proof film contacts.
2. a kind of carbon monoxide transducer according to claim 1, it is characterised in that the filtration core include according to from
Tactic first filter of top to bottm, cellular inner core and the second filter, the upper surface of first filter
It being contacted with the upper surface of the inner cavity, the lower face of second filter is contacted with the upper surface of the gas barrier,
The inner core is clamped by first filter and second filter, and the material of the inner core is activated carbon.
3. a kind of carbon monoxide transducer according to claim 1, it is characterised in that the gas barrier includes plate body, pad
The upper surface setting of piece and boss, the plate body is fluted, and the gasket is located in the groove, the gasket
Upper surface is flushed with the upper surface of the plate body, and the boss is fixed on the lower face of the plate body, described
The lower face of boss contacted with the upper surface of the ventilated membrane, the upper surface of the gasket under the filtration core
End face contacts, and is provided with third air hole on the gasket, second air hole is located on the plate body, described
First air hole, second air hole and the third air hole three are coaxially disposed and are connected to.
4. a kind of carbon monoxide transducer according to claim 1, it is characterised in that the gas barrier and the cap
It is fixedly connected using laser welding process before body.
5. a kind of carbon monoxide transducer according to claim 1, it is characterised in that the positive electrode and described negative
The thickness of electrode is 0.3mm, and material is nickel.
6. a kind of carbon monoxide transducer according to claim 1, it is characterised in that the material of the shell is conduction
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820263799.7U CN208026697U (en) | 2018-02-23 | 2018-02-23 | A kind of carbon monoxide transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820263799.7U CN208026697U (en) | 2018-02-23 | 2018-02-23 | A kind of carbon monoxide transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208026697U true CN208026697U (en) | 2018-10-30 |
Family
ID=63905641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820263799.7U Expired - Fee Related CN208026697U (en) | 2018-02-23 | 2018-02-23 | A kind of carbon monoxide transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208026697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487304A (en) * | 2020-04-13 | 2020-08-04 | 欧阳彬 | Apparatus and method for monitoring gas concentration and sensor |
-
2018
- 2018-02-23 CN CN201820263799.7U patent/CN208026697U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487304A (en) * | 2020-04-13 | 2020-08-04 | 欧阳彬 | Apparatus and method for monitoring gas concentration and sensor |
| CN111487304B (en) * | 2020-04-13 | 2021-12-17 | 欧阳彬 | Apparatus and method for monitoring gas concentration and sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181030 Termination date: 20210223 |