CN110609114A

CN110609114A - Gas detection device

Info

Publication number: CN110609114A
Application number: CN201810618139.0A
Authority: CN
Inventors: 莫皓然; 黄启峰; 韩永隆; 郭俊毅
Original assignee: Microjet Technology Co Ltd
Current assignee: Microjet Technology Co Ltd
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2019-12-24

Abstract

A gas detection device comprises a machine shell body, a gas detection module, a particle monitoring module and a control module. The casing body comprises a sleeving containing groove and a monitoring cavity, and the sleeving containing groove is used for sleeving and combining the mobile device into a whole; the gas detection module is arranged in the monitoring chamber and used for monitoring gas; the particle monitoring module is arranged in the monitoring chamber and used for detecting the particle size and concentration of suspended particles contained in the gas; the control module is used for controlling the driving signals of the gas detection module and the particle monitoring module to monitor and start operation, converting the monitoring data into the monitoring data to be stored, and transmitting the monitoring data to the mobile device to be displayed and uploaded to an external device to be stored.

Description

Gas detection device

Technical Field

The present invention relates to a gas detecting device, and more particularly, to a thin, portable gas detecting device capable of monitoring gas.

Background

Modern people increasingly attach importance to the quality of gas around life, such as carbon monoxide, carbon dioxide, Volatile Organic Compounds (VOC), PM2.5, nitric oxide, sulfur monoxide, etc., and even particles contained in the gas can be exposed to the environment and affect human health, and even seriously harm life. Therefore, the quality of the environmental gas is regarded as good and bad, and the current issue is how to monitor and avoid the remote monitoring.

How to confirm the quality of the gas, it is feasible to monitor the gas in the surrounding environment by using a gas sensor, if the gas sensor can provide monitoring information in real time, the people in the environment can be warned, the people can be prevented or escaped in real time, the influence and the injury of the human health caused by the exposure of the gas in the environment can be avoided, and the gas sensor is very good for monitoring the surrounding environment.

However, the portable device is a mobile device that is carried by modern people when going out, so it is very important to embed the gas detection module in the portable device, and especially, in the case that the current development trend of the portable device is light, thin and has to have high performance, how to thin and assemble the gas detection module in the portable device for use is an important subject of research and development of this scheme.

Disclosure of Invention

The main purpose of the present invention is to provide a gas detection device, which is a thin portable device, the quality of the air in the surrounding environment of the user can be monitored at any time by using a gas detection module, and the gas can be rapidly and stably guided into the gas detection module by using a first actuator, so as to not only improve the efficiency of the sensor, but also separate the first actuator from the sensor by the design of a compartment body, so that the influence of the heat source of the first actuator can be prevented from being reduced when the sensor is monitored, the monitoring accuracy of the sensor can not be influenced, and the influence of other elements (control modules) in the device can also be avoided, so as to achieve the purpose that the gas detection device can detect at any time and anywhere, and also have the rapid and accurate monitoring effect, in addition, a particle monitoring module is provided for monitoring the concentration of particles in the air in the surrounding environment, and providing monitoring information to, the information can be obtained in real time to warn and inform people in the environment, so that the people can be prevented or escape in real time, and the influence and the injury of human health caused by the exposure of gas in the environment are avoided.

One broad aspect of the present disclosure is a gas detection apparatus, comprising: a housing body including a housing containing slot and a monitoring chamber, wherein the housing containing slot is used for the mobile device to be integrated; the gas detection module is assembled in the monitoring cavity of the shell body and comprises a gas sensor and a first actuator, and the first actuator controls gas to be led into the gas detection module and is monitored by the gas sensor; a particle monitoring module, which is assembled in the monitoring chamber of the casing body and comprises a second actuator and a particle sensor, wherein the second actuator controls gas to be introduced into the particle monitoring module, and the particle sensor detects the particle size and concentration of suspended particles contained in the gas; and the control module is used for controlling the driving signals of the gas detection module and the particle monitoring module to monitor and start the operation, converting the monitoring data of the gas detection module and the particle monitoring module into monitoring data to be stored, and transmitting the monitoring data to the mobile device to be displayed and uploaded to an external device to be stored.

Drawings

Fig. 1 is a perspective view of the gas detection device of the present disclosure.

Fig. 2 is a schematic cross-sectional view of fig. 1.

Fig. 3A is a schematic front view of relevant components of a gas detection module of the gas detection apparatus.

Fig. 3B is a schematic back view of the related components of the gas detection module of the gas detection apparatus.

Fig. 3C is an exploded view of the components of the gas detection module of the gas detection apparatus of the present disclosure.

Fig. 4A is an exploded view of a first actuator of the gas detection module of the present disclosure.

Fig. 4B is a schematic view illustrating another perspective view of the first actuator of the gas detection module according to the present invention.

Fig. 5A is a schematic cross-sectional view of a first actuator of the gas detection module of the present disclosure.

Fig. 5B to 5D are schematic diagrams illustrating the operation of the first actuator of the gas detecting module of the present disclosure.

Fig. 6 is a schematic perspective view of a gas flow direction of a gas detection module of the gas detection apparatus.

Fig. 7 is a partially enlarged schematic view of a gas flow direction of a gas detection module of the gas detection device.

Fig. 8 is an external view of a particle monitoring module and a control module of the gas detecting apparatus.

Fig. 9 is a schematic cross-sectional view of a particle monitoring module of the gas detecting apparatus.

Fig. 10 is an exploded view of the components associated with the second actuator of the particle monitoring module.

Fig. 11A to 11C are schematic operation diagrams of a second actuator of the particle monitoring module according to the present disclosure.

Fig. 12 is a schematic control operation diagram of related components of a control module of the gas detection apparatus.

Fig. 13 is a schematic control operation diagram of related components of a control module of a gas detection apparatus according to another embodiment of the present disclosure.

Description of the reference numerals

1: casing body

11: sleeving containing groove

12: monitoring chamber

121: air inlet

122: air outlet

13: connection port

2: gas detection module

21: separate chamber body

211: spacer

212: the first compartment

213: the second compartment

214: gap

215: opening of the container

216: air outlet

217: containing groove

22: support plate

221: vent port

222: connector with a locking member

23: sensor with a sensor element

24: first actuator

241: air inlet plate

241 a: air intake

241 b: bus bar hole

241 c: confluence chamber

242: resonance sheet

242 a: hollow hole

242 b: movable part

242 c: fixing part

243: piezoelectric actuator

243 a: suspension plate

2431 a: first surface

2432 a: second surface

243 b: outer frame

2431 b: matched surface

2432 b: lower surface

243 c: connecting part

243 d: piezoelectric element

243 e: gap

243 f: convex part

2431 f: surface of the convex part

244: insulating sheet

245: conductive sheet

246: chamber space

3: particle monitoring module

31: ventilation inlet

32: vent vent

33: particle monitoring base

331: bearing groove

332: monitoring channel

333: light beam channel

334: accommodation chamber

34: bearing partition plate

341: communication port

35: laser transmitter

36: second actuator

361: air injection hole sheet

361 a: support frame

361 b: suspension plate

361 c: hollow hole

362: cavity frame

363: actuating body

363 a: piezoelectric carrier plate

363 b: tuning the resonator plate

363 c: piezoelectric plate

364: insulating frame

365: conductive frame

366: resonance chamber

367: airflow chamber

37: particle sensor

38: the first compartment

39: the second compartment

4: mobile device

5: control module

51: processor with a memory having a plurality of memory cells

52: power supply module

6: external device

7: power supply device

A: air flow path

C: wired interface

g: chamber spacing

Detailed Description

Exemplary embodiments that embody features and advantages of this disclosure are described in detail below in the detailed description. It will be understood that the present disclosure is capable of various modifications without departing from the scope of the disclosure, and that the description and drawings are to be regarded as illustrative in nature, and not as restrictive.

Referring to fig. 1 and fig. 2, a gas detection device is provided, which includes at least a housing body 1, at least a gas detection module 2, at least a particle monitoring module 3, and at least a control module 5, for avoiding redundancy, in the following embodiments, the number of the housing body 1, the gas detection module 2, the particle monitoring module 3, and the control module 5 is generally one for illustration, but not limited thereto. The casing body 1 is provided with a sleeving containing groove 11, a monitoring chamber 12 and a connecting port 13, the sleeving containing groove 11 is used for containing a mobile device 5, so that the casing body 1 and the portable mobile device are combined into a whole, and when the mobile device is contained in the sleeving containing groove 11, the connecting port 13 is used for being connected with the mobile device, so that the mobile device 4 can provide electric energy for the gas detection module 2 and the control module 3; the gas detection module 2 is assembled in the monitoring chamber 12 of the machine shell body 1, the gas detection module 2 is used for drawing gas into the monitoring chamber 12 and detecting the gas, the particle monitoring module 3 is also assembled in the monitoring chamber 12 and drawing the gas in the monitoring chamber 12 into the particle monitoring module 3 to detect the gas, the control module 4 is connected with the gas detection module 2 and the particle monitoring module 3 to control the driving signals of the gas detection module 2 and the particle monitoring module 3 to monitor and start the operation, and the monitoring data of the gas detection module 2 and the particle monitoring module 3 are converted into monitoring data to be stored, and can be transmitted to the mobile device to display and upload the monitoring data to an external device to be stored; in addition, the monitoring chamber 12 is further provided with an air inlet 121 and an air outlet 122.

Referring to fig. 2 and fig. 3A to 3C, the gas detection module 2 includes a compartment body 21, a carrier 22, a gas sensor 23 and a first actuator 24. Wherein the compartment body 21 is disposed below the gas inlet 121, and is divided by a partition 211 to form a first compartment 212 and a second compartment 213 therein, the partition 211 has a gap 214 for communicating the first compartment 212 and the second compartment 213, the first compartment 212 has an opening 215, the second compartment 213 has a gas outlet 216, and the bottom of the compartment body 21 has a receiving slot 217, the receiving slot 217 is disposed for the carrier plate 22 to penetrate therethrough for positioning, so as to seal the bottom of the compartment body 21, the carrier plate 22 has a gas vent 221, and the gas sensor 23 is packaged and electrically connected on the carrier plate 22, so that the carrier plate 22 is disposed below the compartment body 21, the gas vent 221 corresponds to the gas outlet 216 of the second compartment 213, and the sensor 23 penetrates into the opening 215 of the first compartment 212 to be disposed in the first compartment 212 for detecting the gas in the first compartment 212, and the first actuator 24 is disposed in the second compartment 213, isolated from the gas sensor 23 disposed in the first compartment 212, so that the heat source generated by the first actuator 24 during actuation can be blocked by the partition 211 without affecting the detection result of the gas sensor 23, and the first actuator 24 closes the bottom of the second compartment 213, and controls actuation to generate a guiding gas flow, which is then discharged from the gas outlet 216 of the second compartment 213, and the gas is discharged outside the compartment body 21 through the gas vent 221 of the carrier plate 22.

Referring to fig. 3A to fig. 3C, the carrier board 22 may be a circuit board, and has a connector 222 thereon, wherein the connector 222 is used for a flexible circuit board (not shown) to penetrate and connect, so as to provide electrical connection and signal connection for the carrier board 22.

Referring to fig. 4A to 5A, the first actuator 24 is a gas pump, and includes an air inlet plate 241, a resonator plate 242, a piezoelectric actuator 243, an insulating plate 244, and a conductive plate 245 stacked in sequence. The intake plate 241 has at least one intake hole 241a, at least one bus bar hole 241b and a bus bar chamber 241c, the number of the intake holes 241a and the number of the bus bar holes 241b are the same, in the embodiment, the number of the intake holes 241a and the number of the bus bar holes 241b are 4 for illustration, but not limited thereto; the 4 intake holes 241a penetrate the 4 bus holes 241b, respectively, and the 4 bus holes 241b are merged to the merging chamber 241 c.

The resonator plate 242 may be assembled to the air inlet plate 241 by a bonding method, and the resonator plate 242 has a hollow hole 242a, a movable portion 242b and a fixing portion 242c, the hollow hole 242a is located at the center of the resonator plate 242 and corresponds to the converging chamber 241c of the air inlet plate 241, a region around the hollow hole 242a and opposite to the converging chamber 241c is the movable portion 242b, and an outer peripheral edge portion of the resonator plate 242 is bonded to the air inlet plate 241 and is the fixing portion 242 c.

The piezoelectric actuator 243 includes a suspension plate 243a, an outer frame 243b, at least one connecting portion 243c, a piezoelectric element 243d, at least one gap 243e, and a protrusion 243 f; the suspension plate 243a is a square suspension plate having a first surface 2431a and a second surface 2432a opposite to the first surface 2431a, the outer frame 243b is disposed around the periphery of the suspension plate 243a, and the outer frame 243b has a set of matching surfaces 2431b and a lower surface 2432b and is connected between the suspension plate 243a and the outer frame 243b through at least one connection portion 243c to provide a supporting force for elastically supporting the suspension plate 243a, wherein at least one gap 243e is a gap between the suspension plate 243a, the outer frame 243b and the connection portion 243c for allowing air to pass through. In addition, the first surface 2431a of the suspension plate 243a has a convex portion 243f, and in this embodiment, the convex portion 243f is recessed by an etching process at a connection portion adjacent to the connection portion 243c and at a periphery of the convex portion 243f, so that the convex portion 243f of the suspension plate 243a is higher than the first surface 2431a to form a step-like structure.

As shown in fig. 5A, the suspension plate 243a of the present embodiment is formed by stamping to be recessed downward, and the recessed distance of the suspension plate 243a is adjusted by at least one connection portion 243c formed between the suspension plate 243a and the outer frame 243b, so that the convex surface 2431f of the convex portion 243f on the suspension plate 243a and the assembly surface 2431b of the outer frame 243b form a non-coplanar surface, that is, the convex surface 2431f of the convex portion 243f is lower than the assembly surface 2431b of the outer frame 243b, the second surface 2432a of the suspension plate 243a is lower than the lower surface 2432b of the outer frame 243b, the piezoelectric element 243d is attached to the second surface 2432a of the suspension plate 243a and is disposed opposite to the convex portion 243f, and the piezoelectric element 243d generates deformation due to piezoelectric effect after being applied with a driving voltage, and further drives the suspension plate 243a to bend and vibrate; the piezoelectric actuator 243 is attached to the fixing portion 242c of the resonator plate 242 by thermal pressing using a small amount of adhesive coated on the assembly surface 2431b of the outer frame 243b, so that the piezoelectric actuator 243 can be assembled and combined with the resonator plate 242. In addition, the insulating sheet 244 and the conductive sheet 245 are frame-shaped thin sheets, and are sequentially stacked under the piezoelectric actuator 243. In the present embodiment, the insulating sheet 244 is attached to the lower surface 2432b of the outer frame 243b of the piezoelectric actuator 243.

Referring to fig. 5A, after the air intake plate 241, the resonator plate 242, the piezoelectric actuator 243, the insulating sheet 244 and the conductive sheet 245 of the first actuator 24 are sequentially stacked and combined, wherein a chamber gap g is formed between the first surface 2431a of the suspension plate 243a and the resonator plate 242, and the chamber gap g will affect the transmission effect of the first actuator 24, so that it is very important to maintain a fixed chamber gap g for providing stable transmission efficiency for the first actuator 24. The first actuator 24 of the present application uses a stamping method to press the suspension plate 243a to be recessed downward, so that the first surface 2431a of the suspension plate 243a and the assembly surface 2431b of the outer frame 243b are both non-coplanar, that is, the first surface 2431a of the suspension plate 243a is lower than the assembly surface 2431b of the outer frame 243b, and the second surface 2432a of the suspension plate 243a is lower than the lower surface 2432b of the outer frame 243b, so that the suspension plate 243a of the piezoelectric actuator 243 is recessed to form a space to form an adjustable chamber gap g with the resonant sheet 242, and the structure improvement of forming the recess to form a chamber space 246 is directly performed by using the suspension plate 243a of the piezoelectric actuator 243 to form a recess, so that the required chamber gap g can be completed by adjusting the recess forming distance of the suspension plate 243a of the piezoelectric actuator 243, thereby effectively simplifying the structure design of adjusting the chamber gap g, meanwhile, the advantages of simplifying the process and shortening the process time are achieved.

Fig. 5B to 5D are schematic diagrams illustrating the operation of the first actuator 24 shown in fig. 5A, please refer to fig. 5B, in which the piezoelectric element 243D of the piezoelectric actuator 243 is deformed to drive the suspension plate 243a to move downward after being applied with the driving voltage, at this time, the volume of the chamber space 246 is raised, a negative pressure is formed in the chamber space 246, so as to draw the air in the confluence chamber 241c into the chamber space 246, and the resonance plate 242 is synchronously moved downward under the influence of the resonance principle, thereby increasing the volume of the confluence chamber 241c, and the volume of the confluence chamber 241c is also in a negative pressure state due to the fact that the air in the confluence chamber 241c enters the chamber space 246, so as to draw the air into the intake hole confluence chamber 241c through the confluence holes 241B and 241 a; referring to fig. 5C, the piezoelectric element 243d drives the suspension plate 243a to move upward, so as to compress the chamber space 246, and force the air in the chamber space 246 to be transmitted downward through the gap 243e, so as to achieve the effect of transmitting air, meanwhile, the resonator 242 is also moved upward by the suspension plate 243a due to resonance, and synchronously pushes the gas in the confluence chamber 241C to move toward the chamber space 246; finally, referring to fig. 5D, when the suspension plate 243a is driven downward, the resonator plate 242 is also driven to move downward, and at this time, the resonator plate 242 moves the gas in the compression chamber space 246 toward the at least one gap 243e, and increases the volume in the converging chamber 241c, so that the gas can continuously converge in the converging chamber 241c through the gas inlet hole 241a and the converging hole 241b, and by continuously repeating the above steps, the first actuator 24 can continuously introduce the gas from the gas inlet hole 241a, and then transmit the gas downward through the at least one gap 243e, so as to continuously draw the gas outside the gas detection device into the gas detection device, provide the gas for the sensor 23 to sense, and improve the sensing efficiency.

Referring to fig. 5A, another embodiment of the first actuator 24 is a mems gas pump, in which the gas inlet plate 241, the resonator plate 242, the piezoelectric actuator 243, the insulating plate 244, and the conductive plate 245 can be fabricated by surface micromachining technology to reduce the volume of the first actuator 24.

With continuing reference to fig. 6 and 7, when the gas detecting module 2 is embedded in the chamber 11 of the body 1, the body 1 is illustrated for convenience of describing the gas flow direction of the gas detecting module 2, and the body 1 is illustrated as being transparent, so as to describe, the gas inlet 121 of the body 1 corresponds to the first compartment 212 of the compartment body 21, the gas inlet 121 of the body 1 does not directly correspond to the sensor 23 located in the first compartment 212, i.e. the gas inlet 121 is not directly located above the sensor 23, and the two are staggered, so that the gas inside the second compartment 213 starts to form negative pressure through the control of the first actuator 24, starts to draw external gas outside the body 1 and is introduced into the first compartment 212, so that the sensor 23 inside the first compartment 212 starts to monitor the gas flowing over the surface thereof to detect the quality of the gas outside the body 1, when the first actuator 24 is continuously activated, the monitored gas will be guided into the second compartment 213 through the notch 214 of the partition 211, and finally discharged out of the compartment body 21 through the gas outlet hole 216 and the gas vent 221 of the carrier plate 22, so as to form a unidirectional gas guiding monitor (as indicated by the direction of the gas flow path a in fig. 6).

The gas sensor 23 includes at least one of an oxygen sensor, a carbon monoxide sensor, a carbon dioxide sensor, a temperature sensor, an ozone sensor, and a volatile organic compound sensor, or a combination thereof; alternatively, the sensor 23 may be at least one of a bacterial sensor, a viral sensor, or a microbial sensor, or a combination thereof.

As can be seen from the above description, the gas detection device provided in the present application can monitor the quality of the ambient air around the user at any time by using the gas detection module 2, and can rapidly and stably introduce the gas into the gas detection module 2 by using the first actuator 24, so as to not only improve the efficiency of the gas sensor 23, but also separate the first actuator 24 and the gas sensor 23 from each other by using the design of the first compartment 212 and the second compartment 213 of the compartment body 21, so that the influence of the heat source of the first actuator 24 can be prevented from being reduced when the gas sensor 23 is monitored, and the monitoring accuracy of the gas sensor 23 is not affected, and in addition, the gas detection device can be free from being influenced by other elements in the device, thereby achieving the purpose of detecting the gas detection device at any time and any place, and having a rapid and accurate monitoring effect.

Referring to fig. 1, 8 and 9, the gas detecting apparatus provided by the present application further includes a particle monitoring module 3 for monitoring particles in a gas, the particle monitoring module 3 is disposed in the monitoring chamber 12 of the housing body 1, and includes a ventilation inlet 31, a ventilation outlet 32, a particle monitoring base 33, a bearing partition 34, a laser emitter 35, a second actuator 36 and a particle sensor 37, wherein the ventilation inlet 31 and the ventilation outlet are respectively communicated with the monitoring chamber 12, so as to draw the gas in the monitoring chamber 12 from the ventilation inlet into the particle monitoring module 3, and discharge the gas to the monitoring chamber 12 after the detection is completed, and the particle monitoring base 33 and the bearing partition 34 are disposed inside the particle monitoring module 3, so that the inner space of the particle monitoring module 3 defines a first compartment 38 and a second compartment 39 by the bearing partition 34, the supporting partition 34 has a communication port 341 for communicating the first compartment 38 and the second compartment 39, and the second compartment 39 is communicated with the ventilation outlet 32, the particle monitoring base 33 is disposed adjacent to the supporting partition 34 and is accommodated in the first compartment 38, and the particle monitoring base 33 has a supporting slot 331, a monitoring channel 332, a light beam channel 333 and an accommodating chamber 334, wherein the supporting slot 331 directly vertically corresponds to the ventilation inlet 31, the monitoring channel 332 is disposed below the supporting slot 331 and is communicated with the communication port 341 of the supporting partition 34, the accommodating chamber 334 is disposed at one side of the monitoring channel 332, the light beam channel 333 is communicated between the accommodating chamber 334 and the monitoring channel 332, and the light beam channel 33 directly vertically crosses the monitoring channel 332, so that the inside of the particle monitoring module 3 forms a gas channel for guiding and guiding gas in one direction by the ventilation inlet 31, the supporting slot 331, the monitoring channel 332, the communication port 341 and the ventilation outlet 32, i.e. the path in the direction indicated by the arrow in fig. 9.

The laser emitter 35 is disposed in the accommodating chamber 334, the second actuator 36 is configured on the supporting groove 331, and the particle sensor 37 is electrically connected to the supporting partition 34 and located below the monitoring channel 332, such that a laser beam emitted by the laser emitter 35 is irradiated into the beam channel 33, the beam channel 33 guides the laser beam to irradiate into the monitoring channel 332 to irradiate aerosol contained in the gas in the monitoring channel 332, and the aerosol generates a plurality of light spots after being irradiated by the beam, and is projected onto the surface of the particle sensor 37 to be received, so that the particle sensor 37 senses the particle size and concentration of the aerosol. The particulate sensor of the present embodiment is a PM2.5 sensor.

As can be seen from the above, the monitoring channel 332 of the particle monitoring module 3 directly vertically corresponds to the ventilation inlet 31, so that air is directly guided above the monitoring channel 332 without affecting the guiding of the airflow, and the second actuator 36 is configured on the supporting groove 331 to guide and suck the air outside the ventilation inlet 31, so as to accelerate the guiding of the air into the monitoring channel 332, and the detection is performed by the particle sensor 37, thereby improving the efficiency of the particle sensor 37.

Referring to fig. 9, in addition, the supporting diaphragm 34 has an exposed portion 342 penetrating and extending out of the particle monitoring module 3, the exposed portion 342 has a connector 343, and the connector 343 is used for a circuit flexible board to penetrate and connect to provide electrical connection and signal connection for the supporting diaphragm 34. The load-bearing partition 34 of the present embodiment is a circuit board, but not limited thereto.

With the above description of the features of the particle monitoring module 3 in mind, the structure and operation of the second actuator 36 will be described as follows:

referring to fig. 10 and 11A to 11C, the second actuator 36 is a gas pump, and the second actuator 36 includes a vent 361, a cavity frame 362, an actuator 363, an insulating frame 364 and a conductive frame 365 sequentially stacked; the air-vent 361 includes a plurality of supports 361a, a suspension plate 361b and a hollow hole 361c, the suspension plate 361b can be bent and vibrated, the plurality of supports 361a are adjacent to the periphery of the suspension plate 361b, in this embodiment, the number of the supports 361a is 4, and the supports 361a are respectively adjacent to 4 corners of the suspension plate 361b, but not limited thereto, and the hollow hole 361c is formed at the center of the suspension plate 361 b; the cavity frame 362 is stacked on the suspension plate 361b, and the actuator 363 is stacked on the cavity frame 362, and includes a piezoelectric carrier plate 363a, an adjustable resonance plate 363b, and a piezoelectric plate 363c, wherein the piezoelectric carrier plate 363a is stacked on the cavity frame 362, the adjustable resonance plate 363b is stacked on the piezoelectric carrier plate 363a, and the piezoelectric plate 363c is stacked on the adjustable resonance plate 363b for being deformed after being applied with voltage to drive the piezoelectric carrier plate 363a and the adjustable resonance plate 363b to perform reciprocating bending vibration; the insulating frame 364 is carried and stacked on the piezoelectric carrier plate 363a of the actuating body 363, and the conductive frame 365 is carried and stacked on the insulating frame 364, wherein a resonant cavity 366 is formed among the actuating body 363, the cavity frame 362 and the suspension plate 361 b.

Fig. 11A to 11C are operation diagrams of the second actuator 36 according to the present disclosure. Referring to fig. 9 and 11A, the second actuator 36 is disposed above the supporting groove 331 of the particle monitoring base 33 through the bracket 361A by the second actuator 36, the air injection hole 361 and the bottom surface of the supporting groove 331 are disposed at an interval, and an air flow chamber 367 is formed therebetween; referring to fig. 11B, when a voltage is applied to the piezoelectric plate 363c of the actuating body 363, the piezoelectric plate 363c begins to deform due to the piezoelectric effect and synchronously drives the adjustment resonator plate 363B and the piezoelectric carrier plate 363a, at this time, the air injection hole piece 361 is driven by Helmholtz resonance (Helmholtz resonance) principle, so that the actuating body 363 moves upward, as the actuating body 363 moves upward, the volume of the air flow chamber 367 between the air injection hole piece 361 and the bottom surface of the receiving groove 331 increases, the internal air pressure forms a negative pressure, and the air outside the second actuator 36 enters the air flow chamber 367 from the gap between the bracket 361a of the air injection hole piece 361 and the side wall of the receiving groove 331 due to the pressure gradient and performs pressure collection; referring finally to fig. 11C, gas is continuously introduced into the gas flow chamber 367 to create a positive pressure within the gas flow chamber 367, at which time the actuator 363 is driven by the pressure to move downward to compress the volume of the gas flow chamber 367 and push the gas within the gas flow chamber 367 into the monitoring channel 332 and supply the gas to the particle sensor 37 to detect the concentration of aerosols in the gas via the particle sensor 37.

The second actuator 36 is a gas pump, but the second actuator 36 may also be a mems gas pump manufactured by a mems process, wherein the gas injection hole 361, the cavity frame 362, the actuator 363, the insulating frame 364 and the conductive frame 365 can be manufactured by a surface micromachining technique to reduce the volume of the second actuator 36.

Referring to fig. 8 and 12, the control module 5 of the present invention includes a processor 51, and the processor 51 is connected to the gas detection module 2, the particle detection module 3 and the connection port 13, so that the processor 31 can control the activation of the first actuator 24 and the second actuator 36, convert the detection results of the gas sensor 23 and the particle sensor 37 into a monitoring data for storage, and transmit the monitoring data to the mobile device 4 for display, and upload the monitoring data to the external device 6 for storage or display. The external device 6 may be one of a cloud system, a portable device, a computer system, a display device, etc. for displaying monitoring data and reporting alarm. Wherein the transmission to the external device 6 can be wireless, such as: one of the wireless interfaces of the Wi-Fi module, the Bluetooth module, the radio frequency identification module, the near field communication module and the like is used for external transmission.

Referring to fig. 13, the control module 5 further includes a power supply module 52 for providing stored electric energy and outputting electric energy, and is capable of being coupled with an external power supply device 7 to conduct the electric energy and receive the electric energy for storage, so that the electric energy is provided to the processor 51, and the processor 51 can provide the electric property and the driving signal of the gas detection module 2 and the particle monitoring module 3. The power supply device 7 transmits the electric energy to the power supply module 52 in a wired conduction manner or a wireless conduction manner for storage, and the power supply module 52 further includes at least one rechargeable battery. The power supply module 52 receives and outputs electric power in a wired transmission manner or a wireless transmission manner. The external device 6 is at least one of a cloud system, a portable device, a computer system, etc

In summary, the gas detecting device provided in the present disclosure utilizes the casing body to accommodate the mobile device, and then connects the mobile device with the control module through the connection port, so that the gas detecting module and the particle monitoring module can monitor the air quality of the surrounding environment of the user at any time and transmit the air quality to the mobile device in time, thereby achieving the purpose of detecting the air quality at any time and any place, without increasing the burden of the user to additionally carry an air quality sensor for obtaining the air quality, and the gas can be rapidly and stably guided into the gas detecting module by the first actuator, thereby not only improving the efficiency of the sensor, but also separating the first actuator and the sensor through the compartment design of the compartment body, so that the heat source influence of the first actuator can be prevented and reduced during the monitoring of the sensor, and the monitoring accuracy of the sensor can not be affected, in addition, the particle monitoring module is used for monitoring the concentration of particles in the air of the surrounding environment and providing monitoring information to be transmitted to an external device, so that the information can be obtained in real time, people in the environment can be warned and informed, and the gas in the environment can be prevented or escaped in real time, and the influence and the injury to the human health caused by the exposure of the gas in the environment are avoided.

Various modifications may be made by those skilled in the art without departing from the scope of the invention as defined by the appended claims.

Claims

1. A gas detection apparatus, comprising:

a housing body including a housing containing slot and a monitoring chamber, wherein the housing containing slot is used for a mobile device to be integrated;

the gas detection module is assembled in the monitoring cavity of the shell body and comprises a gas sensor and a first actuator, and the first actuator controls gas to be led into the gas detection module and is monitored by the gas sensor;

a particle monitoring module, which is assembled in the monitoring chamber of the casing body and comprises a second actuator and a particle sensor, wherein the second actuator controls gas to be introduced into the particle monitoring module, and the particle sensor detects the particle size and concentration of suspended particles contained in the gas; and

and the control module is used for controlling the driving signals of the gas detection module and the particle monitoring module to monitor and start the operation, converting the monitoring data of the gas detection module and the particle monitoring module into monitoring data to be stored, and transmitting the monitoring data to the mobile device to be displayed and uploaded to an external device to be stored.

2. The gas detection device as claimed in claim 1, wherein the housing body has a connection port for connecting the mobile device, so that the mobile device provides power to the gas detection module and the control module.

3. The gas detection device of claim 1, wherein the monitoring chamber has a gas inlet and a gas outlet.

4. The gas detection apparatus as claimed in claim 3, wherein the gas detection module comprises a compartment body and a carrier plate, the compartment body is disposed below the gas inlet and is divided by a partition to form a first compartment and a second compartment therein, the partition has a gap for the first compartment and the second compartment to communicate with each other, the first compartment has an opening, the second compartment has a gas outlet, the carrier plate is disposed below the compartment body and encapsulates and electrically connects the sensor, the sensor penetrates into the opening and is disposed in the first compartment, the actuator is disposed in the second compartment and is isolated from the sensor, and the actuator controls gas to be introduced from the gas inlet and to be monitored by the sensor, and then to be discharged out of the monitoring chamber through the gas outlet of the compartment body.

5. The gas detecting device according to claim 1, wherein the sensor of the gas detecting module comprises at least one of an oxygen sensor, a carbon monoxide sensor and a carbon dioxide sensor, or any combination thereof.

6. The gas detection device of claim 1, wherein the sensor of the gas detection module comprises a volatile organic compound sensor.

7. The gas detection apparatus of claim 1, wherein the sensor of the gas detection module is at least one of a bacterial sensor, a viral sensor, or a microbial sensor, or a combination thereof.

8. The gas detection apparatus of claim 1, wherein the actuator of the gas detection module is a micro-electromechanical system gas pump.

9. The gas detection apparatus of claim 1, wherein the actuator of the gas detection module is a gas pump comprising:

the air inlet plate is provided with at least one air inlet hole, at least one bus bar hole and a confluence chamber, wherein the at least one air inlet hole is used for leading in air flow, and the bus bar hole corresponds to the air inlet hole and leads the air flow of the air inlet hole to converge to the confluence chamber;

a resonance sheet having a hollow hole corresponding to the confluence chamber, and a movable part surrounding the hollow hole; and

a piezoelectric actuator, which is arranged corresponding to the resonance sheet;

a cavity space is arranged between the resonance sheet and the piezoelectric actuator, so that when the piezoelectric actuator is driven, airflow is guided in from the at least one air inlet hole of the air inlet plate, is converged to the confluence cavity through the at least one bus hole, then flows through the hollow hole of the resonance sheet, and generates resonance transmission airflow through the piezoelectric actuator and the movable part of the resonance sheet.

10. The gas detection apparatus of claim 9, wherein the piezoelectric actuator comprises:

a suspension plate having a first surface and a second surface, the first surface having a convex portion;

an outer frame surrounding the suspension plate and having a mating surface;

at least one support connected between the suspension plate and the outer frame to provide elastic support for the suspension plate; the piezoelectric element is attached to the second surface of the suspension plate and used for applying voltage to drive the suspension plate to bend and vibrate;

the at least one support is formed between the suspension plate and the outer frame, the first surface of the suspension plate and the assembly surface of the outer frame are formed into a non-coplanar structure, and the first surface of the suspension plate and the resonator plate keep a chamber distance.

11. The gas detecting device according to claim 9, wherein the gas pump includes a conductive plate and an insulating plate, and wherein the gas inlet plate, the resonator plate, the piezoelectric actuator, the conductive plate and the insulating plate are stacked in sequence.

12. The gas detection device of claim 1, wherein the control module comprises a power module for providing stored power and outputting power, the power being provided to the gas detection module.

13. The gas sensing device of claim 12, wherein the power module receives stored power in a wired transmission.

14. The gas sensing device of claim 12, wherein the power module outputs power via wired transmission.

15. The gas sensing device of claim 12, wherein the power module receives stored electrical energy in a wireless transmission.

16. The gas sensing device of claim 12, wherein the power module outputs power by wireless transmission.

17. The gas detection device of claim 12, wherein the power module comprises at least one rechargeable battery for storing electrical energy and outputting electrical energy.

18. The gas detecting device according to claim 2, wherein the control module includes a processor for controlling the driving signals of the first sensor and the gas actuator of the gas detecting module to be activated and converting the detection results of the gas sensor and the particle sensor into monitoring data, and the monitoring data is displayed by the mobile device through the connection port and is uploaded to an external device for storage.

19. The gas detection device of claim 18, wherein the external device is at least one of a cloud system, a portable device, a computer system, and the like.

20. The gas detecting apparatus according to claim 1, wherein the particle monitoring module comprises a ventilation inlet, a ventilation outlet, a supporting partition, a particle monitoring base and a laser emitter, the ventilation inlet and the ventilation outlet are respectively communicated with the monitoring chamber, the internal space of the particle monitoring module defines a first compartment and a second compartment by the supporting partition, the supporting partition has a communication port for communicating the first compartment and the second compartment, the first compartment is communicated with the ventilation inlet, the second compartment is communicated with the ventilation outlet, the particle monitoring base is adjacent to the supporting partition and is accommodated in the first compartment, the supporting slot has a supporting slot, a monitoring channel, a light beam channel and an accommodating chamber, the supporting slot directly vertically corresponds to the ventilation inlet, and the second actuator is disposed on the supporting slot, the monitoring channel is arranged below the bearing groove, the accommodating chamber is arranged at one side of the monitoring channel for accommodating and positioning the laser emitter, the light beam channel is communicated between the accommodating chamber and the monitoring channel and directly and vertically crosses the monitoring channel to guide the laser beam emitted by the laser emitter to irradiate into the monitoring channel, and the particle sensor is arranged below the monitoring channel, so that the second actuator controls the gas to enter the bearing groove from the ventilation inlet and be guided into the monitoring channel, and the gas is irradiated by the laser beam emitted by the laser emitter so as to project a light spot in the gas to the surface of the particle sensor to detect the particle size and the concentration of suspended particles contained in the gas and be discharged from the ventilation outlet.

21. The gas detection apparatus of claim 10, wherein the second actuator of the particle monitoring module is a gas pump comprising:

the air injection hole piece comprises a plurality of supports, a suspension piece and a hollow hole, the suspension piece can be bent and vibrated, the supports are adjacent to the periphery of the suspension piece, the hollow hole is formed in the central position of the suspension piece, the supports are arranged above the bearing groove and provide elastic support for the suspension piece, an air flow chamber is formed between the air injection hole piece and the bearing groove, and at least one gap is formed between the supports and the suspension piece;

a cavity frame bearing and superposed on the suspension plate;

an actuating body bearing and overlapping on the cavity frame to receive voltage to generate reciprocating bending vibration;

an insulating frame bearing and superposed on the actuating body; and

a conductive frame, which is arranged on the insulating frame in a bearing and stacking manner; wherein, a resonance chamber is formed among the actuating body, the cavity frame and the suspension sheet, the actuating body is driven to drive the air injection hole sheet to generate resonance, so that the suspension sheet of the air injection hole sheet generates reciprocating vibration displacement, the gas enters the airflow chamber through the at least one gap and is discharged from the gas flow passage, and the transmission and flow of the gas are realized.

22. The gas detection apparatus of claim 21, wherein the actuator comprises:

a piezoelectric carrier plate bearing and superposed on the cavity frame;

the adjusting resonance plate is loaded and stacked on the piezoelectric carrier plate; and

and the piezoelectric plate is loaded and stacked on the adjusting resonance plate to receive voltage to drive the piezoelectric carrier plate and the adjusting resonance plate to generate reciprocating bending vibration.

23. The gas detection apparatus of claim 1, wherein the second actuator of the particle monitoring module is a micro-electromechanical system gas pump.

24. A gas detection apparatus, comprising:

at least one housing body, which comprises at least one nesting containing groove and at least one monitoring chamber, wherein the nesting containing groove is used for nesting and combining a mobile device into a whole;

at least one gas detection module, which is assembled in the at least one monitoring chamber of the at least one housing body and comprises at least one gas sensor and at least one first actuator, wherein the at least one actuator controls gas to be introduced into the at least one gas detection module and is monitored by the at least one sensor;

at least one particle monitoring module, which is assembled in the at least one monitoring chamber of the at least one housing body and comprises at least one second actuator and at least one particle sensor, wherein the at least one second actuator controls gas to be introduced into the at least one particle monitoring module, and the particle diameter and concentration of suspended particles contained in the gas are detected by the at least one particle sensor; and

and the control module is used for controlling the driving signals of the at least one gas detection module and the at least one particle monitoring module to monitor and start operation, converting the monitoring data of the at least one gas detection module and the at least one particle monitoring module into at least one monitoring data for storage, and transmitting the monitoring data to the at least one mobile device for display and uploading the monitoring data to at least one external device for storage.