CN105842394B - Gas sensing device - Google Patents
Gas sensing device Download PDFInfo
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- CN105842394B CN105842394B CN201510022136.7A CN201510022136A CN105842394B CN 105842394 B CN105842394 B CN 105842394B CN 201510022136 A CN201510022136 A CN 201510022136A CN 105842394 B CN105842394 B CN 105842394B
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- gas
- sensing device
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- under test
- gas sensing
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Abstract
The present invention discloses a kind of gas sensing device, including housing, turbulent element, non-return film and detector.Housing includes cavity and gas vent.Turbulent element is to allowing under test gas vortex into cavity.Non-return film is connected to turbulent element and under test gas to be allowed uniaxially to flow into cavity.Detector is arranged in cavity and between gas vent and non-return film, to detect the characteristic of under test gas.Gas vent is allowing under test gas to discharge.
Description
Technical field
It is filled the present invention relates to a kind of gas sensing device, and more particularly to a kind of gas sensing that can detect gas characteristic
It puts.
Background technology
Traditional gas sensing device includes a blowpipe and a flow rate detector.User is sent into a gas against blowpipe,
This gas detects gas flow by flow rate detector.However, traditional gas arrangement for detecting can only measurement of discharge, make gas detecting machine
Application range be restricted.
Therefore, how the application range of enlargement gas arrangement for detecting is one of target that the art dealer makes great efforts.
The content of the invention
It is an object of the invention to provide a kind of gas sensing device, the characteristic of under test gas can be detected.
In order to achieve the above object, an embodiment according to the present invention, proposes a kind of gas sensing device.Gas sensing device bag
Include a housing, a turbulent element, a non-return film and a detector.Housing includes a cavity and a gas vent.Turbulent element is used
To enter cavity with allowing a under test gas vortex.Non-return film is connected to turbulent element and under test gas to be allowed uniaxially to flow into
Cavity.Detector is arranged in cavity and between gas vent and non-return film, to detect the characteristic of under test gas.Wherein,
Gas vent is allowing under test gas to discharge.
More preferably understand in order to which the above-mentioned and other aspect to the present invention has, preferred embodiment cited below particularly, and coordinate institute
Attached attached drawing, is described in detail below：
Description of the drawings
Figure 1A is the sectional view of the gas sensing device of one embodiment of the invention；
Figure 1B is the top view of the gas sensing device of Figure 1A；
Fig. 2 is the schematic diagram for the gas sensing device that under test gas enters Figure 1A；
Fig. 3 is that the detector of Fig. 2 detects the schematic diagram of under test gas；
Fig. 4 A are the schematic diagram that the under test gas of Fig. 3 is forcefully discharged；
Fig. 4 B are the top view of the filter element of Fig. 4 A；
Fig. 5 is the sectional view of the gas sensing device of another embodiment of the present invention；
Fig. 6 is the outside drawing of the gas sensing device of another embodiment of the present invention.
Symbol description
100、200、300：Gas sensing device
110、221：Housing
110a：Cavity
110b、221a：Recess portion
110c：Gas vent
111：Shell
112：Inner casing
1121：Stop wall
120：Blowpipe
130：Turbulent element
131：Newel
132：Turbulence blades
141：Edge
142：Center
140：Non-return film
150：Detector
151：Circuit board
151a：Perforation
152：Gas characteristic detecing element
155：Filter element
155a：Through hole
160：Forced exhaust element
170：Electric wire
180：Battery
190：Radio receiving transmitting module
220：Air inlet module
C1：Air flue
D1：Outer diameter
L1：Length
G1：Under test gas
P1、P2：Air pressure
t1：Thickness
Specific embodiment
It refer to Figure 1A and Figure 1B, Figure 1A illustrate the sectional view of the gas sensing device according to one embodiment of the invention, and
Figure 1B illustrates the top view of the gas sensing device of Figure 1A.Gas sensing device 100 is the gas sensing device of a miniaturization, is had
There is carrying convenience.In one embodiment, the outer diameter D 1 of gas sensing device 100 can between about 50 millimeters to about 80 millimeters,
And length L1 can may conform to the demand of miniaturization between about 90 millimeters to about 120 millimeters.
Gas sensing device 100 can be used to detect a gas characteristic, be, for example, the alcohol concentration of human exhaled breath or gas group
Into etc..Gas sensing device 100 includes housing 110, blowpipe 120, turbulent element 130, non-return film 140, detector 150, mistake
Filtering element 155, forced exhaust element 160, electric wire 170, battery 180 and radio receiving transmitting module 190.
Housing 110 includes shell 111 and inner casing 112, and wherein inner casing 112 is connected to shell 111 and in shell 111.
Shell 111 has cavity 110a and gas vent 110c, and inner casing 112 has recess portion 110b.Cavity 110a, recess portion 110b and exhaust
Hole 110c is communicated.In addition, the material of housing 110 is, for example, plastic cement, metal or rubber etc..
Blowpipe 120 is alternatively installed on the recess portion 110b of inner casing 112.In one embodiment, the outer diameter of blowpipe 120 is slightly larger than
The internal diameter of recess portion 110b；In this way, after slightly exerting a force, blowpipe 120 can be separated or be installed on recess portion 110b from recess portion 110b.
Since blowpipe 120 has replaceability, blowpipe 120 is made to become the blowpipe of a jettisonable；It further says, in blowpipe 120 certainly
After recess portion 110b separation, blowpipe 12 can be abandoned.As long as one new blowpipe 120 is installed again in recess portion when the gas sensing of next time
110b, you can carry out gas sensing.
User can be blown into a under test gas G1 (Fig. 2) against blowpipe 120 and enter in cavity 110a, to detect under test gas
The characteristic of G1.In the present embodiment, the cavity 110a of shell 111 can be communicated directly with the recess portion 110b of inner casing 112, can be shortened to be measured
Gas G1, to the flow distance of cavity 110a, can also omit the entity pipeline between blowpipe 120 and cavity 110a from blowpipe 120.
As illustrated in figures 1A and ib, turbulent element 130 is located in recess portion 110b.Turbulent element 130 include newel 131 and
Several turbulence blades 132, each turbulence blades 132 extend to the madial wall of recess portion 110b from newel 131.In the present embodiment, disturb
The quantity of blade 132 is flowed for 8, however can also be more or less than 8.In the present embodiment, housing 110 can with turbulent element 130
To be integrally formed structure, for example, plastic cement, which can be used, with turbulent element 130 in housing 110 projects manufacture craft shaping；Another implementation
In example, after housing 110 and turbulent element 130 can complete respectively, then by binding, engaging, soldering, screw togather, riveted etc. temporarily
When property or permanent bond.The material of turbulent element 130 is, for example, plastic cement, metal or rubber etc..When housing 110 and turbulent element
130 be one of the forming structure when, the material of turbulent element 130 can be identical with housing 110；When housing 110 and turbulent element 130 divide
When not being made, the material of turbulent element 130 can be different with housing 110.
As shown in Figure 1A, due to being not yet blown under test gas G1, the air pressure P1 in blowpipe 120 is approximately equal to cavity
The air pressure P2 of 110a.
Fig. 2 is refer to, illustrates the schematic diagram that under test gas enters the gas sensing device of Figure 1A.When detecting gas to be measured
During body G1, user can be blown into a under test gas G1 against blowpipe 120, and the air pressure P1 in blowpipe 120 is more than cavity 110a at this time
Air pressure P2, make non-return film 140 be subject to one toward cavity 110a directions thrust, force between non-return film 140 and inner casing 112
Expose an air flue C1, and then under test gas G1 is made to be entered by air flue C1 in cavity 110a.
Newel 131 is fixed at the center 142 of non-return film 140, and the edge 141 of non-return film 140 is with respect to center 142
Movably (such as free end).Due to turbulence blades 132 in the shape of a spiral, make under test gas G1 that can produced after turbulence blades 132
Raw vortex movement and past deep direction flowing, and make the edge 141 of the non-return film 140 of under test gas G1 promotions；Due to
A long arm of force is formed between the edge 141 of non-return film 140 and center 142, under test gas G1 is made effortlessly to promote non-return film
140, easily make to expose air flue C1 between the edge 141 of non-return film 140 and inner casing 112.In one embodiment, non-return film 140
Airtight film (not having stomata), therefore under test gas G1 can be avoided to leak to cavity in itself by the material of non-return film 140
110a.Thus, under test gas G1 also can promote non-return film with larger strength (motive force declines if having leakage)
140 edge 141 and expose air flue C1.
Further, since under test gas G1 vortexs enter cavity 110a, therefore can equably be full of entire cavity 110a,
That is, under test gas G1 can rapidly reach detector 150, to be subject to the detecting of detector 150 or analysis.In one embodiment, only
Inverse film 140 is a transparent membrane, however is alternatively translucent or non-transparent film.In one embodiment, the thickness of non-return film 140
Spending t1 can be between 45 micron to 55 microns, however is also smaller than 45 microns or more than 55 microns.In addition, non-return film 140
Shape be, for example, circle, however be alternatively rectangle or ellipse.
In one embodiment, the material of non-return film 140 is, for example, in polyethylene (Polyethylene), polychlorostyrene vinyl fluoride
(Polytetrafluoroethylene), polyester fiber (Polyester) or its combination.In addition, non-return film 140 can be
Single layer structure or multilayered structure.For multilayered structure, the material of each layer of non-return film 140 can be above-mentioned material species
One of which or combination.
Detector 150 is arranged in cavity 110a and between gas vent 110c and non-return film 140, to be measured to detect
The characteristic of gas G1.Detector 150 includes circuit board 151 and an at least gas characteristic detecing element 152.Circuit board 151 has
An at least perforation 151a.Gas characteristic detecing element 152 is arranged on circuit board 151 and towards cavity 110a, to detect or analyze
The characteristic of under test gas G1.In addition, in another embodiment, detector 150 can also be flowmeter.
In the present embodiment, 170 circuit connectable plate 151 of electric wire and battery 180 make battery 180 supply electricity to circuit board 151,
And the configuration of battery 180 refer to Fig. 6.Radio receiving transmitting module 190 can transmit the analysis of under test gas G1 with wireless communication technique
As a result to external receiver (not illustrating), receiver is, for example, computer, mobile phone or servomechanism.In another embodiment, although figure
It does not illustrate, however gas sensing device 100 can further include a transmission line, wherein transmission line connection circuit board 151 and external reception
Device makes the analysis result of under test gas G1 send external receiver to by transmission line.
Fig. 3 is refer to, illustrates the schematic diagram of the detector detecting under test gas of Fig. 2.As shown in figure 3, when stopping is blown into
Under test gas G1 is when cavity 110a, and since cavity 110a is full of under test gas G1, the air pressure P2 in cavity 110a is more than
Air pressure P1 in blowpipe 120 makes the edge 141 of non-return film 140 be promoted toward 120 direction of blowpipe and close air flue C1 and (be illustrated in
Fig. 2), and then the under test gas G1 in cavity 110a is avoided to be back to blowpipe 120.It further says, under test gas G1 can only be single
Cavity 110a is entered by non-return film 140 to ground, and can not blowpipe 120 be reversely flowd back towards by non-return film 140.
In one embodiment, non-return film 140 is airtight film, i.e., non-return film 140 does not have stomata.Therefore, Fig. 2's
After air flue C1 is closed, the under test gas G1 in cavity 110a can be avoided countercurrently to arrive blowpipe in itself by the material of non-return film 140
120.In addition, inner casing 112 includes the stop wall 1121 of annular, the edge 141 of non-return film 140 is optionally subjected to stop wall
1121 backstop.As shown in figure 3, since the air pressure P2 in cavity 110a is more than the air pressure P1 in blowpipe 120, non-return film
140 are subject to the pressure acted on toward 120 direction of blowpipe, and can more closely fit in stop wall 1121；In this way, cavity 110a
Interior under test gas G1 is more difficult to be back to blowpipe 120 between non-return film 140 and stop wall 1121.
It refer to Fig. 4 A and Fig. 4 B, Fig. 4 A and illustrate the schematic diagram that the under test gas of Fig. 3 is forcefully discharged, and Fig. 4 B illustrate figure
The top view of the filter element of 4A.After the completion of detecting, forced exhaust element 160 can force the under test gas G1 of cavity 110a
Outside gas bleeding arrangement for detecting 100, avoid being blown into next time it is to be measured into body G1 be subject to cavity 110a internal residuals it is to be measured into
The influence of body G1 can so promote the accuracy of analysis of under test gas G1 next time.When forced exhaust element 160 operates,
Air pressure P2 in cavity 110a is more than the air pressure P3 outside cavity 110a, make the under test gas G1 in cavity 110a can be sucked out to
Outside cavity 110a.In addition, as shown in Figure 4 A, in the case where strengthening the exhaust capacity of forced exhaust element 160, e.g. improve the row of pressure
The rotating speed of gas element 160 can make the air pressure P1 in blowpipe 120 be more than the air pressure P3 outside cavity 110a, and then make non-return film
Expose air flue C1 between 140 edge 141 and inner casing 112；Thus, the residual under test gas G1 in turbulent element 130
It can be forcefully discharged outside cavity 110a, avoid being blown into next time to be measured is subject to the residual in turbulent element 130 to be measured into body G1
The negative effect of gas G1 can so promote the accuracy of analysis of under test gas G1 next time.As to whether expose Fig. 4 A's
Depending on the visual actual states of air flue C1, the embodiment of the present invention is not any limitation as.That is, in another embodiment, if need not
Will, the air flue C1 shown in Fig. 4 A can not also expose.
As shown in Figure 4 A, since circuit board 151 has perforation 151a, make when forced exhaust element 160 operates, cavity
Under test gas G1 in 110a can be discharged by perforation 151a and gas vent 110c outside gas sensing device 100.In one embodiment,
Forced exhaust element 160 is, for example, scavenger fan.Although figure does not illustrate, electric wire 170 can also connect forced exhaust element 160
With battery 180, make battery 180 that can supply electrical power to forced exhaust element 160, to operate forced exhaust element 160.
As shown in Figure 4 B, filter element 155 has an at least through hole 155a, makes when forced exhaust element 160 operates, empty
Gas G1 in chamber 110a can be discharged by the through hole 155a of the perforation 151a of housing 110, gas vent 110c and filter element 155
Outside gas sensing device 100.The internal diameter of through hole 155a is less than the internal diameter of gas vent 110c.It, can due to the setting of filter element 155
Stop that introduced contaminants is entered by gas vent 110c in cavity 110a.
Although the interchangeable element of the gas sensing device 100 of above-described embodiment illustrates by taking blowpipe 120 as an example, this
Inventive embodiments are not limited.
Fig. 5 illustrates the sectional view of the gas sensing device according to another embodiment of the present invention.Gas sensing device 200 includes
Housing 110, air inlet module 220, detector 150, filter element 155, forced exhaust element 160, electric wire 170, battery 180 and nothing
Line transceiver module 190.Housing 110 includes shell 111 and inner casing 112, and wherein inner casing 112 is connected to shell 111 and positioned at shell
In 111.Inner casing 112 has recess portion 110b, and air inlet module 220 is alternatively installed on the recess portion 110b of inner casing 112.Compared to gas
Body arrangement for detecting 100, the interchangeable element of the gas sensing device 200 of the present embodiment is whole group air inlet module 220.
Air inlet module 220 includes housing 221, blowpipe 120, turbulent element 130 and non-return film 140.Housing 221 has recessed
Portion 221a, turbulent element 130 are fixed in recess portion 221a.Specifically, turbulent element 130 includes newel 131 and several disturbs
Blade 132 is flowed, each turbulence blades 132 extend to the madial wall of recess portion 221a from newel 131.In the present embodiment, blowpipe 120 can
Recess portion 221a is alternatively installed on, however also can be integrally formed with the housing 221 of air inlet module 220；For example, blowpipe 120 with into
It is integrally formed that plastic cement injection manufacture craft can be used in the housing 221 of gas module 220.
In one embodiment, internal diameter of the outer diameter slightly larger than the recess portion 110b of inner casing 112 of the housing 221 of air inlet module 220；Such as
This, after slightly exerting a force, can separate or be installed on recess portion 110b from recess portion 110b by whole group air inlet module 220.Due to air inlet
Module 220 has replaceability, and air inlet module 220 is made to become the air inlet module of a jettisonable；It further says, in air inlet mould
Block 220 can abandon air inlet module 220 from after recess portion 110b separation.As long as installed again when the gas sensing of next time one it is new into
Gas module 220 is in recess portion 110b, you can carries out gas sensing.
Fig. 6 illustrates the outside drawing of the gas sensing device according to another embodiment of the present invention.Gas sensing device 300 includes
Housing 110, air inlet module 120, turbulent element 130 (not illustrating), non-return film 140 (not illustrating), detector 150 (are not painted
Show), filter element 155 (not illustrating), forced exhaust element 160 (not illustrating), electric wire 170, battery 180 and radio receiving transmitting module
190 (not illustrating).As shown in the figure, battery 180 can be arranged on outside housing 110, and detector 150 is connected to electric wire 170 and (is not painted
Show), to supply electricity to detector 150.In another embodiment, battery 180 can be also arranged in housing 110.
In addition, the battery 180 of above-mentioned gas arrangement for detecting 100 and 200 can the similar present invention with the configuration mode of electric wire 170
The battery 180 of the gas sensing device 300 of embodiment and the configuration mode of electric wire 170, hold this and repeat no more.
In conclusion the gas sensing device of the embodiment of the present invention have effects that it is at least following：
(1) in mono- embodiments of, gas sensing device is the gas sensing device of a miniaturization, has carrying convenience.
(2) in mono- embodiments of, gas sensing device includes the blowpipe one alternatively.Blowpipe is replaced in this way, can increase
Convenience.
(3) in mono- embodiments of, gas sensing device includes turbulent element.Turbulent element can allow air blowing to generate vortex movement,
Make air blowing rapidly touch monitoring device, the time required to reducing gas sensing.
(4) in mono- embodiments of, gas sensing device includes forced exhaust element.Forced exhaust element can be in vivo by shell
It blows and rapidly discharges outside housing, and the in vivo air blowing major part of shell or almost all can be discharged outside housing, with sharp next time
Gas sensing.
(5) in mono- embodiments of, gas sensing device includes non-return film.Non-return film is connected to turbulent element, can allow and treat
Flow into cavity with surveying gas unidirectional.
(6) in mono- embodiments of, turbulent element and non-return film can be integrated in air inlet module, make turbulent element and non-return thin
Film can be replaced with air inlet module.In this way, it can avoid residuing in blowing for the gases affect next time of turbulent element and non-return film
Gas is detected.
Although in conclusion disclosing the present invention with reference to preferred embodiment above, the present invention is not limited to.
Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, can make it is various more
Dynamic and retouching.Therefore, protection scope of the present invention should be subject to what the claim enclosed was defined.
Claims (9)
1. a kind of gas sensing device, including：
Housing, including cavity and gas vent；
Turbulent element, to allow a under test gas evenly into the cavity；
Non-return film is connected to the turbulent element and the under test gas to be allowed uniaxially to flow into the cavity；And
Detector, in the cavity and between the gas vent and the non-return film, to detect the spy of the under test gas
Property；
Wherein, the gas vent to allow the under test gas discharge；
Wherein, which includes a newel and multiple turbulence blades, and respectively the turbulence blades extend to this from the newel
One madial wall of housing, and the turbulent element is fixed on the housing.
2. gas sensing device as described in claim 1, the wherein detector include：
Circuit board, has an at least perforation, and an at least perforation is allowing the under test gas to pass through；And
Gas characteristic detecing element, the characteristic arranged on the circuit board and to detect the under test gas.
3. gas sensing device as described in claim 1, further includes：
Forced exhaust element, outside the cavity, to force to discharge outside the cavity under test gas in the cavity.
4. gas sensing device as described in claim 1, the wherein housing have a recess portion, which also wraps
It includes：
Blowpipe is alternatively installed on the recess portion.
5. gas sensing device as described in claim 1, the wherein housing include stop wall, the center of the non-return film is fixed
In the newel, and the skirt selectivity of the non-return film be subject to the backstop of the stop wall.
6. gas sensing device as described in claim 1, the wherein housing are one of the forming with the turbulent element.
7. gas sensing device as described in claim 1, wherein the gas sensing device have an outer diameter and a length, this is outer
Footpath is between 50 millimeters to 80 millimeters, and the length is between 90 millimeters to 120 millimeters.
8. gas sensing device as described in claim 1, the wherein thickness of the non-return film between 45 microns to 55 microns it
Between.
9. gas sensing device as described in claim 1, the wherein material of the non-return film include polyethylene
(Polyethylene), polychlorostyrene vinyl fluoride (Polytetrafluoroethylene), polyester fiber (Polyester) or its group
It closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510022136.7A CN105842394B (en) | 2015-01-16 | 2015-01-16 | Gas sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510022136.7A CN105842394B (en) | 2015-01-16 | 2015-01-16 | Gas sensing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105842394A CN105842394A (en) | 2016-08-10 |
| CN105842394B true CN105842394B (en) | 2018-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510022136.7A Active CN105842394B (en) | 2015-01-16 | 2015-01-16 | Gas sensing device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5299579A (en) * | 1989-11-24 | 1994-04-05 | Minco Ab | Apparatus for examining a patient's pulmonary function |
| US5854431A (en) * | 1997-12-10 | 1998-12-29 | Sandia Corporation | Particle preconcentrator |
| CN2555042Y (en) * | 2002-05-31 | 2003-06-11 | 中国人民解放军第三军医大学 | Light weight and convenient low oxygen respirator |
| CN201083741Y (en) * | 2007-09-25 | 2008-07-09 | 董庆军 | Drunken driving detector housing |
| CN203152991U (en) * | 2013-03-20 | 2013-08-28 | 无锡市崇安区科技创业服务中心 | Shoe cabinet |
| WO2014116604A1 (en) * | 2013-01-22 | 2014-07-31 | Arizona Board Of Regents, A Body Corporate Of The State Of Arizona, Acting For And On Behalf Of Arizona State University | Portable metabolic analyzer system |
-
2015
- 2015-01-16 CN CN201510022136.7A patent/CN105842394B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5299579A (en) * | 1989-11-24 | 1994-04-05 | Minco Ab | Apparatus for examining a patient's pulmonary function |
| US5854431A (en) * | 1997-12-10 | 1998-12-29 | Sandia Corporation | Particle preconcentrator |
| CN2555042Y (en) * | 2002-05-31 | 2003-06-11 | 中国人民解放军第三军医大学 | Light weight and convenient low oxygen respirator |
| CN201083741Y (en) * | 2007-09-25 | 2008-07-09 | 董庆军 | Drunken driving detector housing |
| WO2014116604A1 (en) * | 2013-01-22 | 2014-07-31 | Arizona Board Of Regents, A Body Corporate Of The State Of Arizona, Acting For And On Behalf Of Arizona State University | Portable metabolic analyzer system |
| CN203152991U (en) * | 2013-03-20 | 2013-08-28 | 无锡市崇安区科技创业服务中心 | Shoe cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105842394A (en) | 2016-08-10 |
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