CN110082266A - Gas-detecting device - Google Patents
Gas-detecting device Download PDFInfo
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- CN110082266A CN110082266A CN201811001656.XA CN201811001656A CN110082266A CN 110082266 A CN110082266 A CN 110082266A CN 201811001656 A CN201811001656 A CN 201811001656A CN 110082266 A CN110082266 A CN 110082266A
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- 239000002245 particle Substances 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 172
- 239000000725 suspension Substances 0.000 claims description 52
- 230000004308 accommodation Effects 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 3
- 241000894006 Bacteria Species 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 241000700605 Viruses Species 0.000 claims 1
- 230000004913 activation Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
- 244000005700 microbiome Species 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
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- Chemical & Material Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
A kind of gas-detecting device includes: a shell, has a chamber, at least an air inlet, a gas outlet and at least a connection channel, chamber and air inlet, gas outlet and interface channel are interconnected；One ray machine structure is set in chamber, has a gas flow and a beam channel, and gas flow is connected to air inlet and gas outlet, and beam channel is connected to gas flow；One gas transport actuator, framework is in ray machine structure；One laser module is set in ray machine structure, is irradiated in gas flow to emit a light beam；One particle sensor, it is set in gas flow, after detecting the gas in laser module beam emitted irradiation gas flow, luminous point is projected caused by suspended particulates included by gas, detection calculates the size of air-borne particulates and the concentration of suspended particulates whereby；One external sensing module, is connected to interface channel, to sense the air in interface channel.
Description
[technical field]
This case is examined about a kind of gas-detecting device, espespecially a kind of gas for carrying out air guide by a gas transport actuator
Survey device.
[background technique]
In recent years, the air pollution problems inherent of China and adjacent domain is gradually serious, especially thin suspended particulates (PM 2.5 and
PM 10) concentration data it is usually excessively high, the monitoring of Airborne particulate concentration is gradually paid attention to.But since air can box haul, wind
The change of amount and flow, at present detect suspended particulates air quality monitoring station be mostly fixed point, work as so can not confirm at all
Aerosol concentration arround lower, it is therefore desirable to which a miniature gas particles detection device being convenient for carrying is come can nothing for user
When without carve, anywhere or anytime detect context aerosol concentration.
In addition, current gas particles detection device often can only detect pure gas, but in addition to suspended particulates
Except, still there are many gases being harmful to the human body can also cause to the health of human body if can not detect immediately in daily life
It influences.
In addition, user can be because of different place, such as factory, office, household can possess different gas detections
Demand, such as factory need volatility or will cause the gas sensor of imbedibility injury toxic gas, and household, office are then
It is the sensors such as carbon monoxide, carbon dioxide, temperature, humidity, but presently commercially available gas-detecting device is all the gas of integral type
Body detection device, the gas of detection has just determined before factory, can not voluntarily change according to user's demand, cause gas
Body detection device can detect the gas outside user's demand or can not detect the required gas of user, be inconvenient, and
And user is also difficult to select suitable gas-detecting device.It can be according to gas detection demand in view of this, how to develop one kind
The gas-detecting device sensed actually current particularly important project.
[summary of the invention]
The main purpose of this case is to provide a kind of gas-detecting device, is able to detect the dense of suspended particulates contained in air
The concentration of degree and other gases, provides that user is instant and accurate gas information.Wherein, the sensor to detect air is
Circumscribed sensor is available for users to and voluntarily arranges in pairs or groups and can replace easily on demand, increases convenience.
The one broad sense state sample implementation of this case is a kind of gas-detecting device, includes: a shell has a chamber, at least one
Air inlet, a gas outlet and at least a connection channel, chamber and air inlet, gas outlet and interface channel are interconnected；One ray machine
Structure is set in chamber, has a gas flow and a beam channel, and gas flow is connected to air inlet and gas outlet, beam channel
It is connected to gas flow；One gas transport actuator, framework are provided with being actuated and guiding air and enter chamber by air inlet in ray machine structure
Interior, then enter in gas flow via interface channel；One laser module is set in ray machine structure, to send out beam channel
Irradiating light beam is irradiated in gas flow；One particle sensor is set in the gas flow far from the gas transport actuator
One end projects luminous point, detects whereby simultaneously to detect after light beam irradiates the gas in the gas flow caused by suspended particulates
Calculate the size of suspended particulates and the concentration of suspended particulates included in air；At least one external sensing module, is connected to this
Interface channel, including a sensor, to sense the gas in the interface channel.
[Detailed description of the invention]
Fig. 1 is the schematic perspective view of this case gas-detecting device.
Fig. 2 is the diagrammatic cross-section of this case gas-detecting device.
The solid that Fig. 3 A is regarded by the gas transport actuator of one preferred embodiment of this case gas-detecting device from depression angle
Decomposition diagram.
Fig. 3 B is looked up the solid that angle regards by the gas transport actuator of one preferred embodiment of this case gas-detecting device certainly
Decomposition diagram.
Fig. 4 A is the gas transport actuator diagrammatic cross-section of one preferred embodiment of this case gas-detecting device.
Fig. 4 B to Fig. 4 D is the gas transport actuator illustrative view of one preferred embodiment of this case gas-detecting device.
Fig. 5 is the gas transport actuator diagrammatic cross-section of this case gas-detecting device another preferred embodiment.
Fig. 6 is the gas transport actuator decomposition diagram of this case another preferred embodiment in Fig. 5.
Fig. 7 A is the gas transport actuator diagrammatic cross-section of this case another preferred embodiment in Fig. 6.
Fig. 7 B to Fig. 7 C is the gas transport actuator illustrative view of this case another preferred embodiment in Fig. 7 A.
Fig. 8 is the system schematic of this case gas-detecting device.
[specific embodiment]
The some exemplary embodiments for embodying this case features and advantages will describe in detail in the explanation of back segment.It should be understood that
This case can have various variations in different aspects, all not depart from the range of this case, and explanation therein and diagram
It is illustrated as being used in itself, rather than to limit this case.
This case provides a kind of gas-detecting device 100, please refer to Fig. 1 and Fig. 2.In embodiment of this case, gas inspection
Survey device 100 include a shell 1, a ray machine structure 2, a gas transport actuator 3, a laser module 4, a particle sensor 5 and
At least one external sensing module 6.Shell 1 has a chamber 11, at least an air inlet 12, a gas outlet 13 and at least one connection logical
Road 14.Chamber 11 and an at least air inlet 12, gas outlet 13 and at least a connection channel 14 is connected.Ray machine structure 2 is set to shell
In the chamber 11 of body 1, there is a gas flow 21 and a beam channel 22.Gas flow 21 and at least an air inlet 12 and outlet
Mouth 13 is connected, and beam channel 22 is then connected to gas flow 21.3 framework of gas transport actuator is in ray machine structure 2, by actuating gas
Body transmits actuator 3 to change the air pressure inside chamber 11, and air is enable to be entered in chamber 11 by an at least air inlet 12, then
Enter in gas flow 21 via at least a connection channel 14, is finally discharged outside shell 1 by gas outlet 13.Laser module 4 is arranged
In ray machine structure 2, exposed in gas flow 21 to emit light beam to beam channel 22.Particle sensor 5 is to be set to gas
Far from one end of gas transport actuator 3 in body runner 21.When in the light beam irradiation gas flow 21 that laser module 4 is projected
After gas, the suspended particulates in gas can generate multiple projection luminous points, and particle sensor 5 receives multiple projection luminous points, and calculates
The size and concentration of air-borne particulates out.At least one external sensing module 6 is removably to be connected at least one connection to lead to
In road 14, wherein at least a connection channel 14 is mutually assembled at least one external sensing module 6.In this present embodiment, connection is logical
The quantity of road 14 and external sensing module 6 can be 5 respectively, and but not limited to this.External sensing module 6 includes a sensor
(non-schema), sensor can for one of an oxygen sensor, a carbon monoxide transducer, a carbon dioxide sensor or
A combination thereof also can be a volatile organic matter sensor, also can be bacterium sensor, viral sensor and microbiological sensor
One of them or combinations thereof or sensor can be one of a temperature sensor or a humidity sensor or combinations thereof.
Please continue to refer to Fig. 2, ray machine structure 2 has light source setting slot 23 and an accommodation groove 24, and slot 23 is arranged in light source
It is connected with beam channel 22, and accommodation groove 24 is set to one end in gas flow 21 far from particle sensor 5, to accommodate
Gas transport actuator 3.After driving gas transport actuator 3, the air outside shell 1 will enter chamber by air inlet 12
In 11, then by gas transport actuator 3 by gas by chamber 11 import gas flow 21 in, at this point, laser module 4 emit light beam
Into beam channel 22 and then the gas in gas flow 21 is irradiated, and the suspended particulates in gas generate after being irradiated by light beam
Scattering phenomenon, particle sensor 5 then receive generated luminous point after suspended particulates are irradiated by light beam, hang so as to calculating in air
The size and concentration of floating particle.Wherein, suspended particulates can be PM2.5 suspended particulates or PM10 suspended particulates.Meanwhile with chamber
External induction module 6 in the interface channel 14 of 11 connections carries out the gas flowed into interface channel 14 using its sensor
Detection, to measure the content of the specific gas in air.
Please refer to Fig. 3 A, Fig. 3 B and Fig. 4 A, in embodiment of this case, gas transport actuator 3 is a piezoelectric pump, packet
It is exhausted to include an inlet plate 31, a resonance plate 32, a piezoelectric actuator 33, one first insulating trip 34, a conductive sheet 35 and one second
Embolium 36.Inlet plate 31, resonance plate 32, piezoelectric actuator 33, the first insulating trip 34, conductive sheet 35 and the second insulating trip 36 are
Sequentially stacked combination.
In embodiment of this case, there is inlet plate 31 an an at least air inlet 31a, at least busbar channel 31b and one to converge
Flow chamber 31c.An at least busbar channel 31b is to correspond to an at least air inlet 31a and be arranged.Air inlet 31a converges for importing gas
Stream emissions groove 31b guidance is from the gas that air inlet 31a is imported to confluence chamber 31c.Resonance plate 32 has a medium pore 32a and one
Movable part 32b.Medium pore 32a corresponds to the confluence chamber 31c of inlet plate 31 and is arranged.Movable part 32b around medium pore 32a and
Setting.A cavity space 37 is formed between resonance plate 32 and piezoelectric actuator 33.Therefore, when piezoelectric actuator 33 is driven,
Gas can be imported by an at least air inlet 31a for inlet plate 31, then be collected to confluence chamber 31c through an at least busbar channel 31b.
Then, gas passes through the medium pore 32a of resonance plate 32 again, so that the movable part 32b of piezoelectric actuator 33 and resonance plate 32 is generated
Resonance is to transmit gas.
It please continue refering to Fig. 3 A, Fig. 3 B and Fig. 4 A, piezoelectric actuator 33 includes a suspension board 33a, an outline border 33b, at least one
A bracket 33c and piezoelectric element 33d.In embodiment of this case, suspension board 33a has a square form, and flexible shake
Dynamic, but not limited to this.Suspension board 33a has a protrusion 33f.In embodiment of this case, suspension board 33a's so using square
Shape form Design is the advantage for obviously having power saving due to the structure compared to circular form, square suspension board 33a.?
The capacity load operated under resonant frequency, consumption power can increase with the rising of resonant frequency, because of square suspension board
The more round suspension board of the resonant frequency of 33a is low, therefore consumed power also can be lower.However, in other embodiments, suspension board
33a form can change according to actual demand.Outline border 33b is around the outside for being set to suspension board 33a.An at least bracket 33c connects
It is connected between suspension board 33a and outline border 33b, to provide the support force of resilient support suspension board 33a.Piezoelectric element 33d has
One side length is less than or equal to a side length of suspension board 33a.And piezoelectric element 33d is attached on a surface of suspension board 33a,
To apply driving voltage to drive suspension board 33a bending vibration.Between suspension board 33a, outline border 33b and at least a bracket 33c
An at least gap 33e is formed, to for gas to pass through.Protrusion 33f is convexly equipped on another surface of suspension board 33a.In this case reality
It applies in example, suspension piece 33a and protrusion 33f are the integrated formed structure produced using an etch process, and but not limited to this.
Please refer to Fig. 4 A, in embodiment of this case, cavity space 37 using resonance plate 32 and piezoelectric actuator 33 it
Generated one material of gap filling between outline border 33b, such as conducting resinl, but not limited to this, so that resonance plate 32 and suspension
Certain depth can be maintained between plate 33a, and then can be guided gas and more quickly be flowed.In addition, because of suspension board 33a and resonance plate
32 keep suitable distance, reduce mutual contact interference, the generation of noise can also be lowered.In other embodiments, it can borrow
The outline border 33b for being filled in resonance plate 32 and piezoelectric actuator 33 is reduced by the height of the outline border 33b of increase piezoelectric actuator 33
Between gap in conducting resinl thickness.In this way, still may make suspension board 33a and resonance plate 32 to keep the feelings of suitable distance
Under condition, the overall package of gas transport actuator 3 will not influence the filling thickness of conducting resinl because of hot pressing temperature and cooling temperature,
Conducting resinl is avoided to influence the actual size of cavity space 37 after finishing assembly because of the factor of expanding with heat and contract with cold.In other embodiments
In, suspension board 33a can be adopted to be shaped with impact style, makes the protrusion 33f of suspension board 33a far from a surface of piezoelectric element 33d
Non-co-planar, that is, table of the protrusion 33f far from piezoelectric element 33d are formed with a surface of the separate piezoelectric element 33d of outline border 33b
Face will be less than surface of the outline border 33b far from piezoelectric element 33d.It is few using being coated on surface of the outline border 33b far from piezoelectric element 33d
Amount filling material, such as: conducting resinl makes piezoelectric actuator 33 fit in resonance plate 32 with hot pressing mode, so that piezoelectricity causes
Dynamic device 33 is able to assemble combination with resonance plate 32.It is shaped by adopting the suspension board 33a of piezoelectric actuator 33 with impact style, with
The structural improvement of cavity space 37 is constituted, cavity space 37 is able to strike out by adjusting the suspension board 33a of piezoelectric actuator 33
Shape distance is completed, and the structure design procedure of adjustment cavity space 37 is effectively simplified.Also reach simplified processing procedure simultaneously, shortens
The advantages that processing time.In embodiment of this case, the first insulating trip 34, conductive sheet 35 and the second insulating trip 36 are all the thin of frame-type
Matrix body, but not limited to this.
Please continue refering to Fig. 3 A, Fig. 3 B and Fig. 4 A, inlet plate 31, resonance plate 32, piezoelectric actuator 33, the first insulating trip 34,
Conductive sheet 35 and the second insulating trip 36 all can make gas transport actuator 3 by micro electronmechanical face type micro-processing technology processing procedure
Volume-diminished, with constitute a MEMS gas transport actuator 3.
Fig. 4 B is please referred to, in 33 actuation process of piezoelectric actuator, the piezoelectric element 33d of piezoelectric actuator 33 is applied drive
Deformation is generated after dynamic voltage, drives suspension board 33a to be displaced to the direction far from inlet plate 31, the volume of cavity space 37 mentions at this time
It rises, in foring negative pressure in cavity space 37, the gas just drawn in confluence chamber 31c enters in cavity space 37.Meanwhile altogether
The piece 32 that shakes generates the synchronous direction to separate inlet plate 31 of resonance and is displaced, the related volume for increasing confluence chamber 31c.And because converging
Gas in stream chamber 31c enters the relationship of cavity space 37, causes to be similarly negative pressure state, Jin Ertong in confluence chamber 31c
Cross air inlet 31a and busbar channel 31b come draw gas enter confluence chamber 31c in.
Then, as shown in Figure 4 C, piezoelectric element 33d drives suspension board 33a to be displaced towards inlet plate 31, compression chamber space
37, likewise, resonance plate 32 is suspended plate 33a actuating, generates resonance and be displaced towards inlet plate 31, forces to synchronize and push chamber
Gas in space 37 is further transmitted by gap 33e, to achieve the effect that transmit gas.
Finally, as shown in Figure 4 D, when suspension board 33a is driven the state for being returned to and not driven by piezoelectric element 33d, altogether
Vibration piece 32 is also driven simultaneously and is displaced to the direction far from inlet plate 31, and resonance plate 32 at this time will be in compression chamber space 37
Gas it is mobile to gap 33e, and promote the volume in confluence chamber 31c, allow gas that can constantly pass through air inlet 31a
And busbar channel 31b converges in chamber 31c to converge at.It is passed by being repeated continuously gas shown in above-mentioned Fig. 4 B to Fig. 4 D
Defeated 3 actuation step of actuator, enables gas transport actuator 3 continuously to make gas flow at high rates, reaches gas transport actuator 3
The operation of transmission and output gas.
Then, it goes back to refering to Fig. 3 A, Fig. 3 B and Fig. 4 A, the first insulating trip 34, conductive sheet 35 and the second insulating trip 36
Sequentially carrying is stacked and placed on piezoelectric actuator 33.The outer rim of conductive sheet 35 protrudes out a conductive connecting pin 351, and protrudes out one from inner edge
Bending electrode 352, electrode 352 are electrically connected the piezoelectric element 33d of piezoelectric actuator 33.The conductive connecting pin 351 of conductive sheet 35
Foreign current is connected outward, so as to driving the piezoelectric element 33d of piezoelectric actuator 33.In addition, the first insulating trip 34 and second
The setting of insulating trip 36 can avoid the generation of short circuit.
In the detection process of gas-detecting device 100 or in a preset time point, gas transport actuator 3 is driven to make
Dynamic, outside air is imported by air inlet 12, and is borrowed in gas flow 21 by the defeated 3 high speed ejection gas of transmission actuator of gas
This carries out cleaning operation to 5 surface of particle sensor, and spraying is built-up in the suspended particulates on 5 surface of particle sensor, is maintained
The precision that particle sensor 5 detects every time.Before above-mentioned preset time point can be to carry out detection operation every time, or for
Multiple preset time points (such as: once being cleaned automatically for every three minutes) of Fixed Time Interval, also can be manual by user
Operation setting, or determined to be calculated using software according to at-once monitor numerical value, it is not limited with illustrating herein.
It please refers to shown in Fig. 5, the gas transport actuator section of 100 another preferred embodiment of this case gas-detecting device shows
Be intended to, gas transport actuator is that another form of piezoelectricity air blast pumps in the present embodiment, in diagram gas transport actuator with
Label 8 is to indicate, is all explained below with gas transport actuator 8, gas transport actuator 8 is set to the accommodating of ray machine structure 2
Slot 24.Please continue to refer to Fig. 6 and Fig. 7 A, gas transport actuator 8 includes the fumarole piece 81 sequentially stacked, chamber frame
82, actuator 83, Insulating frame 84 and conductive frame 85；Fumarole piece 81 contains multiple connector 81a, a suspension piece 81b
And a central hole 81c, the flexible vibration of suspension piece 81b, multiple connector 81a are adjacent to suspension piece 81b periphery, the present embodiment
In, its quantity of connector 81a is 4, is adjacent to 4 corners of suspension piece 81b respectively, but this is not to be limited, and central hole
81c is formed in the center of suspension piece 81b；The carrying of chamber frame 82 is stacked and placed on suspension piece 81b, and the carrying of actuator 83 is stacked
In in chamber frame 82, and contain a piezoelectricity support plate 83a, adjustment a sounding board 83b, a piezoelectric patches 83c, wherein piezoelectricity carries
Plate 83a carrying is stacked and placed in chamber frame 82, and adjustment sounding board 83b carrying is stacked and placed on piezoelectricity support plate 83a, and piezoelectric board 83c is held
Load be stacked and placed on adjustment sounding board 83b, for apply voltage after deformation occurs with drive piezoelectricity support plate 83a and adjustment sounding board 83b into
The reciprocating bending vibration of row；Insulating frame 84 is then that carrying is stacked and placed on the piezoelectricity support plate 83a of actuator 83, and conductive frame 85 is held
Load is stacked and placed on Insulating frame 84, and a vibration chamber 86 is formed between actuator 83, chamber frame 82 and suspension piece 81b,
In addition, the thickness of adjustment sounding board 83b is greater than the thickness of piezoelectricity support plate 83a.
From the above, gas transport actuator 8 is respectively connected to the inner sidewall of accommodation groove 24 by 4 connector 81a
24b, and be arranged with the bottom surface interval 24a of accommodation groove 24, it enables and forms a gas between suspension piece 81b and the bottom surface 24a of accommodation groove 24
Flow chamber 87, wherein suspension piece 81b, multiple connector 81a, accommodation groove 24 sidewall portion 24b between form multiple gap 81d.
In addition, piezoelectricity support plate 83a with more one first conductive connecting pin 83d, the first conductive connecting pin 83d from the periphery of piezoelectricity support plate 83a to
It extends to form outside, and conductive frame 85 also has an one second conductive connecting pin 85a and electrode portion 85b, the second conductive connecting pin 85a is certainly
The outer peripheral edge of conductive frame 85 extends outward to form, and electrode portion 85b is extended inwardly to form by the inner peripheral of conductive frame 85, enables gas
Body transmits the structure sequentially heap poststack of actuator 8, and electrode portion 85b can be electrically connected with piezoelectric patches 83c, so that the first conductive connecting pin
83d and the second conductive connecting pin 85a can be smoothly formed into a loop after receiving driving signal.
Fig. 7 A to Fig. 7 C is please referred to, please referring initially to Fig. 7 A, 8 framework of gas transport actuator is in the accommodation groove 24 of ray machine structure 2
In, the bottom surface interval 24a of fumarole piece 81 and accommodation groove 24 is arranged, and in formation air-flow chamber 87 between the two；Referring again to
Fig. 7 B, when applying driving voltage when the piezoelectric board 83c of actuator 83, piezoelectric board 83c starts to generate deformation simultaneously because of piezoelectric effect
Adjustment sounding board 83b and piezoelectricity support plate 83a are driven with portion, at this point, fumarole piece 81 can be because of helmholtz resonance (Helmholtz
Resonance) principle is driven together, so that actuator 83 moves up, since actuator 83 shifts up, so that fumarole
The volume of air-flow chamber 87 between piece 81 and the bottom surface 24a of accommodation groove 24 increases, and air pressure inside forms negative pressure, passes in gas
Air outside defeated actuator 8 by because barometric gradient by between the bracket 81a of fumarole piece 81 and the sidewall portion 24b of accommodation groove 24
Gap 81d enter air-flow chamber 87 and carry out collection pressure；Fig. 7 C is finally please referred to, air constantly enters in air-flow chamber 87,
The air pressure in air-flow chamber 87 is set to form positive pressure, at this point, actuator 83 is moved down by voltage driving, by compressed air stream chamber 87
Volume, and push air in air-flow chamber 87, admit air into gas flow 21, provide gas to particle sensor 5
The size and concentration of the suspended particulates in air are detected, and is constantly drawn in chamber 11 by gas transport actuator 8
Air enables the air of shell 1 to continue into chamber 11 and flows into interface channel 14, is detected on for external sensor 6
The specific gas content of the air of interface channel 14.
It please refers to shown in Fig. 1 and Fig. 8, gas-detecting device 100 has further included a driving assembly 7, and driving assembly 7 contains
One battery module 71 provides driving gas transport actuator 3, laser module 4, particle and passes to store electric energy and output electric energy
The electric energy of sensor 5 and external sensing module 6.The 71 external power supply unit 200 of energy of battery module, receives the energy of power supply unit 200
It measures and stores, and power supply unit 200 can convey energy with wired conduction pattern, also can transmit energy by wireless conduction pattern
To battery module 71, it is not limited thereto.
Please continue to refer to Fig. 1 and Fig. 8, driving assembly 7 further includes a communication module 72 and a processor 73.73 electricity of processor
Battery module 71, communication module 72, gas transport actuator 3, laser module 4 and particle sensor 5 are connected, for driving gas
Body transmits actuator 3, laser module 4, particle sensor 5.The sensor of external sensing module 6 is connected to the interface channel 14
In, and electrical property and data connection can be made with processor 73, therefore particle sensor 5 and the sensor of external sensing module 6 are examined
Analytic operation and storage can be carried out by processor 73 by surveying result, and can be converted into a monitoring numerical value.When processor 73 starts gas
When body transmits actuator 3, gas transport actuator 3 starts to draw air, admits air into gas flow 21, gas flow 21
In gas can be excited the be projeced into beam channel 22 of optical module 4 light beam irradiation, in this way, particle sensor 5 receive gas
Suspended particulates are illuminated in body runner 21 and the luminous point that scatters, and will test result and are sent to processor 73,73 foundation of processor
Testing result calculates the size and concentration of air-borne particulates, and analysis generates a monitoring numerical value and stores accordingly.Processor
Monitoring numerical value stored by 73, which is obtained, is sent to an outside connection device 300 by communication module 72.Outside links device 300
One of cloud system, portable apparatus, computer system, display device etc., to show monitoring numerical value and notification warning.
Also, gas transport actuator 3 can be defeated by the gas in chamber 11 when processor 73 starts gas transport actuator 3
It send to gas flow 21, makes chamber 11 that negative pressure state be presented, just start by the air outside 12 suction casing 1 of air inlet, this
When, into chamber 11 in gas will spread and cause interface channel 14, the sensor in external sensing module 6 in interface channel 14
Start to detect the gas in interface channel 14, and will test result and be sent to processor 73, processor 73 is according to the inspection
Concentration of the result to calculate specific gas contained in air is surveyed, analysis generates monitoring numerical value and stores accordingly, processor
Monitoring numerical value stored by 73, which is obtained, is sent to external connection device 300 by communication module 72.
In addition, above-mentioned communication module 72 by wire transmission or can be wirelessly transmitted to external connection device 300, You Xianchuan
Defeated mode is as follows, such as: one of USB, mini-USB, micro-USB etc. or wireless transmission method are as follows, such as:
One of Wi-Fi module, bluetooth module, radio frequency identification module, a near field communication module etc..
In conclusion gas-detecting device provided by this case, has gas transport actuator, the indoor air of chamber is led
Enter to gas flow, particle sensor, which has received, plays the generated projection after suspended particulates using laser module projecting beam
Luminous point, to calculate the size and concentration of air-borne particulates, further, since gas transport actuator constantly air by chamber
Room is delivered to gas flow, causes chamber that negative pressure state is presented always, promote the air outside shell lasting by air inlet into
Enter in chamber, then diffuse to the interface channel communicated with chamber, so that the external sensing module in interface channel is able to detection sky
The content of its specific gas in gas.And therefore above-mentioned external sensing module, is made with being removably mounted in interface channel
User can easily replace required gas sensor according to its demand, and when gas sensor damage, can also be light
Replacement, carry out maintenance without genuine is returned or buy completely new gas-detecting device again.
This case appointed as person familiar with the technology apply craftsman think and be it is all as modify, it is so neither de- such as attached claim
Be intended to Protector.
[symbol description]
100: gas-detecting device
1: shell
11: chamber
12: air inlet
13: gas outlet
14: interface channel
2: ray machine structure
21: gas flow
22: beam channel
23: slot is arranged in light source
24: accommodation groove
24a: bottom surface
24b: inner sidewall
3: gas transport actuator
31: inlet plate
31a: air inlet
31b: busbar channel
31c: confluence chamber
32: resonance plate
32a: medium pore
32b: movable part
33: piezoelectric actuator
33a: suspension board
33b: outline border
33c: bracket
33d: piezoelectric element
33e: gap
33f: protrusion
34: the first insulating trips 35: conductive sheet
351: conductive connecting pin
352: electrode
36: the second insulating trips
37: cavity space
4: laser module
5: particle sensor
6: external sensing module
7: driving assembly
71: battery module
72: communication module
73: processor
8: gas transport actuator
81: fumarole piece
81a: connector
81b: suspension piece
81c: central hole
81d: gap
82: chamber frame
83: actuator
83a: piezoelectricity support plate
83b: adjustment sounding board
83c: piezoelectric patches
83d: the first conductive connecting pin
84: Insulating frame
85: conductive frame
85a: the second conductive connecting pin
85b: electrode portion
86: vibration chamber
87: air-flow chamber
200: power supply unit
300: outside connection device
Claims (26)
1. a kind of gas-detecting device, characterized by comprising:
One shell, has a chamber, at least an air inlet, a gas outlet and at least a connection channel, the chamber and the air inlet,
The gas outlet and the interface channel are interconnected；
One ray machine structure, be set to the chamber in, have a gas flow and a beam channel, the gas flow be connected to the air inlet and
The gas outlet, the beam channel are connected to the gas flow；
One gas transport actuator, framework enter the chamber by the air inlet in the ray machine structure, to guide air after being actuated
It is interior, then enter in the gas flow via the interface channel；
One laser module is set in the ray machine structure, to emit light beam to the beam channel and be irradiated in the gas flow；
One particle sensor is set to the one end of the gas flow far from the gas transport actuator, to detect light beam irradiation
After gas in the gas flow, luminous point is projected in the gas caused by suspended particulates, detects and is calculated in the gas whereby
The size for the suspended particulates for being included and the concentration of suspended particulates；And
At least one external sensing module is connected to the interface channel, including a sensor, to sense being somebody's turn to do in the interface channel
Gas.
2. gas-detecting device as described in claim 1, which is characterized in that the ray machine structure has light source setting slot and an appearance
Slot is set, light source setting slot is connected to the beam channel, and the accommodation groove is set to the gas flow far from one of particle sensor
End.
3. gas-detecting device as claimed in claim 2, which is characterized in that the gas transport actuator architectures are in the ray machine structure
The accommodation groove in, to guide the gas to the gas flow.
4. gas-detecting device as claimed in claim 2, which is characterized in that the laser module is set to the light of the ray machine structure
Source be arranged slot in, to emit and projecting beam in the beam channel.
5. gas-detecting device as described in claim 1, which is characterized in that the microactuator suspension in the particle sensor detection gas
Grain is PM2.5 suspended particulates.
6. gas-detecting device as described in claim 1, which is characterized in that the microactuator suspension in the particle sensor detection gas
Grain is PM10 suspended particulates.
7. gas-detecting device as described in claim 1, which is characterized in that the gas transport actuator activation and by the gas
High speed ejection carries out cleaning operation into the gas flow, to the particle sensor surface, and spraying is attached in the particle sensor
The suspended particulates on surface, so as to the precision for maintaining the particle sensor to monitor every time.
8. gas-detecting device as described in claim 1, which is characterized in that also include a processor and a communication module,
In the processor to drive the gas transport actuator, the laser module, the particle sensor and the external sensing module, and
The sensor of the particle sensor and external sensing module result detected is analyzed, a monitoring number is converted into
Value, monitoring numerical value are sent to an outside by the communication module again and link device, warn so as to display monitoring numerical value and notification.
9. gas-detecting device as claimed in claim 8, which is characterized in that the communication module is wire communication transmission and one
Wireless communication transmissions at least one.
10. gas-detecting device as claimed in claim 9, which is characterized in that the wire communication is transmitted as a USB, a mini-
USB, a micro-USB at least one.
11. gas-detecting device as claimed in claim 9, which is characterized in that the wireless communication transmissions be a Wi-Fi module,
One bluetooth module, a radio frequency identification module and a near field communication module at least one.
12. gas-detecting device as claimed in claim 8, which is characterized in that it is a cloud system, one that the outside, which links device,
Portable apparatus, a computer system at least one.
13. gas-detecting device as claimed in claim 8, which is characterized in that a battery module is further included, to store electric energy
And output electric energy, so that the processor is able to drive the gas transport actuator, the laser module, the particle sensor and this is outer
The sensor of sensing module is connect, simultaneously the external power supply unit of energy stores the battery module so as to receiving electric energy.
14. gas-detecting device as claimed in claim 13, which is characterized in that the power supply unit is defeated with a wired conduction pattern
Power transmission can give battery module storage.
15. gas-detecting device as claimed in claim 13, which is characterized in that the power supply unit is defeated with a wireless conduction pattern
Power transmission can give battery module storage.
16. gas-detecting device as described in claim 1, which is characterized in that gas transport actuator includes:
One inlet plate corresponds to the busbar channel and a confluence chamber of the air inlet hole site with an at least air inlet, at least one,
The air inlet is to import gas, and the busbar channel is to guide from the gas that air inlet imports to the confluence chamber；
One resonance plate has a medium pore, which corresponds to the position of the confluence chamber, and surrounding is a movable part；And
One piezoelectric actuator, with the resonance plate corresponding setting in position；
Wherein, the inlet plate, the resonance plate and the piezoelectric actuator are sequentially to stack setting, and the resonance plate and the piezoelectricity cause
A cavity space is formed between dynamic device, when being driven the piezoelectric actuator, makes gas by the air inlet of the inlet plate
Import, be collected to the confluence chamber through the busbar channel, then pass through the medium pore of the resonance plate so that the piezoelectric actuator with
The movable part of the resonance plate generates resonance to transmit gas.
17. gas-detecting device as claimed in claim 16, which is characterized in that the piezoelectric actuator includes:
One suspension board has a square form, and flexible vibration；
One outline border, around the outside for being set to the suspension board；
An at least bracket is connected between the suspension board and the outline border, to provide resilient support；And
One piezoelectric element has a side length, which is less than or equal to a side length of the suspension board, and the piezoelectric element is attached at
On one surface of the suspension board, to apply voltage to drive the suspension board bending vibration.
18. gas-detecting device as claimed in claim 16, which is characterized in that the gas transport actuator includes:
One first insulating trip, a conductive sheet and one second insulating trip；
Wherein, the inlet plate, the resonance plate, the piezoelectric actuator, first insulating trip, the conductive sheet and second insulating trip according to
Sequence stacks setting.
19. gas-detecting device as described in claim 1, which is characterized in that the sensor of the external sensing module be for
One oxygen sensor, a carbon monoxide transducer and a carbon dioxide sensor at least one or any combination thereof made of
Group.
20. gas-detecting device as described in claim 1, which is characterized in that the sensor of the external sensing module is one
Volatile organic matter sensor.
21. gas-detecting device as described in claim 1, which is characterized in that the sensor of the external sensing module to
Monitor bacterium, virus and microorganism at least one or any combination thereof made of group.
22. gas-detecting device as described in claim 1, which is characterized in that the sensor of the external sensing module be for
Group made of one temperature sensor and a humidity sensor at least one any combination.
23. gas-detecting device as claimed in claim 8, which is characterized in that the sensor group of the external sensing module connects
Make electrical property and data connection in the interface channel, and with the processor.
24. gas-detecting device as described in claim 1, which is characterized in that gas transport actuator includes:
One fumarole piece, includes multiple connectors, a suspension piece and a central hole, and the flexible vibration of suspension piece is multiple
Connector is connected to the accommodation groove, is located in the accommodation groove with positioning the fumarole piece, the fumarole piece and with the accommodation groove
Bottom surface between form an air-flow chamber, and form an at least gap between multiple connector, the suspension piece and the accommodation groove；
One chamber frame, carrying are stacked and placed on the suspension on piece；
One actuator, carrying are stacked and placed in the chamber frame, are applied voltage and are generated reciprocally bending vibration；
One Insulating frame, carrying are stacked and placed on the actuator；And
One conductive frame, carrying is folded to be set on the Insulating frame；
Wherein, a vibration chamber is formed between the actuator, the chamber frame and the suspension piece, by driving the actuator with band
It moves the fumarole piece and generates resonance, so that the suspension piece of the fumarole piece is generated reciprocally vibration displacement, to cause the gas
Enter the air-flow chamber by an at least gap, then be discharged by the gas outlet, realizes the transport flow of the air.
25. gas-detecting device as claimed in claim 24, which is characterized in that the actuator includes:
One piezoelectricity support plate, carrying are stacked and placed in the chamber frame；
One adjustment sounding board, carrying are stacked and placed on the piezoelectricity support plate；And
One piezoelectric patches, carrying are stacked and placed on the adjustment sounding board, apply voltage and the piezoelectricity support plate and the adjustment sounding board is driven to produce
Raw reciprocally bending vibration.
26. gas-detecting device as claimed in claim 25, which is characterized in that the thickness of the adjustment sounding board is greater than the piezoelectricity
The thickness of support plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810077563 | 2018-01-26 | ||
| CN2018100775639 | 2018-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110082266A true CN110082266A (en) | 2019-08-02 |
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ID=67412832
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811001656.XA Pending CN110082266A (en) | 2018-01-26 | 2018-08-30 | Gas-detecting device |
| CN201821411409.2U Active CN209878546U (en) | 2018-01-26 | 2018-08-30 | Gas detection device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821411409.2U Active CN209878546U (en) | 2018-01-26 | 2018-08-30 | Gas detection device |
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| Country | Link |
|---|---|
| CN (2) | CN110082266A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111896591A (en) * | 2020-08-04 | 2020-11-06 | 北京致感致联科技有限公司 | Self-calibration gas sensor device and calibration method and system thereof |
| CN112577863A (en) * | 2019-09-27 | 2021-03-30 | 研能科技股份有限公司 | Gas detection module |
| CN113758838A (en) * | 2020-06-03 | 2021-12-07 | 研能科技股份有限公司 | Gas detection device |
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|---|---|
| CN209878546U (en) | 2019-12-31 |
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