TWI696815B - Gas detecting device - Google Patents

Abstract

A gas detecting device is disclosed and comprises a case body, a gas detecting module, a particle detecting module and a control module. The case body comprises an accommodating groove and a detecting chamber, wherein the accommodating groove is for receiving a portable device to form an integrated structure; the gas detecting module is disposed within the detecting chamber for gas detecting; the particle detecting module is disposed within the detecting chamber for detecting the size and the concentration of the suspended particles; a control module controls an enable signal for enabling the gas detecting module and the particle detecting module, and the control module transforms the detecting results which are generated by the gas detecting module and the particle detecting module into a detecting data for storing, and the detecting data can be transmitted to the portable device for displaying and uploaded to an external device for storing.

Description

Gas detection device

This case relates to a gas detection device, especially a thin, portable gas detection device that can perform gas monitoring.

Modern people pay more and more attention to the gas quality requirements around life, such as carbon monoxide, carbon dioxide, volatile organic compounds (Volatile Organic Compound, VOC), PM2.5, nitric oxide, sulfur monoxide and other gases, even in the gas The particles contained in it will be exposed to the environment and affect human health, seriously or even endanger life. Therefore, the quality of the environmental gas has attracted attention from various countries. At present, it is an urgent need to monitor how to avoid being far away.

How to confirm the quality of the gas, it is feasible to use a gas sensor to monitor the surrounding gas, if it can provide real-time monitoring information, warn people in the environment, can immediately prevent or escape, and avoid being affected by the environment Gas exposure causes human health impacts and injuries. Using gas sensors to monitor the surrounding environment is a very good application.

However, the portable device is a mobile device that modern people can carry when they go out. Therefore, embedding the gas detection module in the portable device is of great importance. In particular, the current development trend of portable devices is light and thin. In the case of high performance, how to thin the gas detection module and install it in a portable device for use is an important issue in this case.

The main purpose of this case is to provide a gas detection device, which is a thin and portable device. The gas detection module can be used to monitor the ambient air quality of the user at any time, and the first actuator can be used to quickly and stably introduce gas The gas detection module not only improves the efficiency of the sensor, but also separates the first actuator and the sensor from each other through the design of the compartment body, so that the sensor can block and reduce the influence of the heat source of the first actuator during monitoring. It does not affect the monitoring accuracy of the sensor, nor can it be affected by other components (control modules) in the device, so that the gas detection device can detect at any time and anywhere, and it can have a fast and accurate monitoring effect. In addition, Equipped with a particle monitoring module to monitor the concentration of particles in the surrounding air, and provide monitoring information to external devices to obtain information in real time to warn people in the environment and prevent or escape in time to avoid suffering Gas exposure in the environment causes human health effects and injuries.

A broad implementation aspect of this case is a gas detection device, including: a casing body, including a set of containing grooves and a monitoring chamber, the set of containing grooves is integrated into the mobile device; a gas detection A module, assembled in the monitoring chamber of the casing body, contains a gas sensor and a first actuator, the first actuator controls the introduction of gas into the gas detection module and passes the gas sensor Monitoring; a particle monitoring module, set in the monitoring chamber of the casing body, contains a second actuator and a particle sensor, the second actuator controls the gas to be introduced into the particle monitoring module , The particle sensor detects the particle size and concentration of suspended particles contained in the gas; and a control module to control the driving signals of the gas detection module and the particle monitoring module to monitor the start-up operation and detect the gas The monitoring data of the module and the particle monitoring module are converted into a monitoring data storage, and can be sent to the mobile device for display and uploaded to an external device for storage.

1: Chassis body

11: Set of holding slots

12: Monitoring chamber

121: Air inlet

122: vent

13: Port

2: Gas detection module

21: compartment body

211: Separator

212: First compartment

213: Second compartment

214: Notch

215: opening

216: vent

217: accommodation slot

22: Carrier board

221: vent

222: connector

23: Gas sensor

24: First actuator

241: Air intake plate

241a: Air inlet

241b: busbar hole

241c: Confluence chamber

242: Resonance film

242a: Hollow hole

242b: movable part

242c: fixed part

243: Piezo actuator

243a: Suspended board

2431a: first surface

2432a: Second surface

243b: Outer frame

2431b: Assembled surface

2432b: Lower surface

243c: Connection

243d: Piezo element

243e: clearance

243f: convex part

2431f: convex surface

244: Insulation sheet

245: conductive sheet

246: chamber space

3: Particle monitoring module

31: Ventilation inlet

32: Ventilation outlet

33: Particle monitoring base

331: Bearing slot

332: Monitoring channel

333: Beam channel

334: storage room

34: Carrier partition

341: communication port

342: Exposed part

343: Connector

35: Laser launcher

36: Second actuator

361: Jet orifice

361a: bracket

361b: Suspended tablets

361c: Hollow hole

362: Cavity frame

363: Actuators

363a: Piezo carrier

363b: Adjust the resonance plate

363c: piezoelectric plate

364: Insulated frame

365: conductive frame

366: Resonance chamber

367: Airflow chamber

37: Particle sensor

38: First compartment

39: Second compartment

4: Mobile device

5: control module

51: processor

52: Power supply module

6: External device

7: Power supply device

A: Airflow path

C: Wired interface

g: chamber spacing

Figure 1 is a three-dimensional schematic diagram of the gas detection device in this case.

Figure 2 is a schematic cross-sectional view of Figure 1.

FIG. 3A is a schematic front view of relevant components of the gas detection module of the gas detection device of the present case.

Figure 3B is a schematic view of the back of the relevant components of the gas detection module of the gas detection device of the present case.

Figure 3C is an exploded schematic diagram of relevant components of the gas detection module of the gas detection device of the present case.

Figure 4A is an exploded schematic view of the first actuator of the gas detection module of the present case.

FIG. 4B is an exploded schematic view of the first actuator of the gas detection module of this case viewed from another angle.

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

Figures 5B to 5D are schematic diagrams of the operation of the first actuator of the gas detection module in this case.

Figure 6 is a perspective schematic view of the gas flow direction of the gas detection module of the gas detection device of the present case.

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

Figure 8 is a schematic view of the appearance of the particle monitoring module and the control module of the gas detection device in this case.

Figure 9 is a schematic cross-sectional view of the particle monitoring module of the gas detection device of the present case.

FIG. 10 is an exploded schematic diagram of relevant components of the second actuator of the particle monitoring module of the present case.

Figures 11A to 11C are schematic diagrams of the operation of the second actuator of the particle monitoring module in this case.

Fig. 12 is a schematic diagram of control actions of relevant components of the control module of the gas detection device in this case.

FIG. 13 is a schematic diagram of control actions of relevant components of a control module of a gas detection device according to another embodiment of the present invention.

Some typical embodiments embodying the features and advantages of this case will be described in detail in the description in the following paragraphs. It should be understood that this case can have various changes in different forms, and it does not deviate from the scope of this case, and the descriptions and illustrations therein are essentially used for explanation, not for limiting this case.

Please refer to FIG. 1, FIG. 2 and FIG. 12, this case provides a gas detection device including at least one casing body 1, at least one gas detection module 2, at least one particle monitoring module 3 and at least one control module Group 5, in order to avoid redundancy, the following embodiment illustrates that the number of the chassis body 1, the gas detection module 2, the particle monitoring module 3, and the control module 5 are all exemplified, but not limited to this. The casing body 1 has a set of containing grooves 11, a monitoring chamber 12 and a connecting port 13, the set of containing grooves 11 is provided for a mobile device 4 to be accommodated therein, so that the casing body 1 and the portable mobile device are combined into As a whole, when the mobile device 4 is accommodated in the casing 11, the connection port 13 is used to connect with the mobile device 4, so that the mobile device 4 can provide electric energy to the gas detection module 2 and the control module 5; the gas detection module Group 2 is set in the monitoring chamber 12 of the cabinet body 1. The gas detection module 2 is used to draw gas into the monitoring chamber 12 and detect it. The particle monitoring module 3 is also set in the monitoring In the chamber 12, the gas in the monitoring chamber 12 is drawn into the particle monitoring module 3 to detect it, and the control module 5 is connected to 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 are monitored to start operation, and the monitoring data of the gas detection module 2 and the particle monitoring module 3 are converted into a monitoring data storage and can be transmitted to the mobile device 4 It is displayed and uploaded to an external device for storage. In addition, the monitoring chamber 12 is further provided with an air inlet 121 and an air outlet 122.

Referring also to FIGS. 2, 3A to 3C, the aforementioned gas detection module 2 includes a compartment body 21, a carrier board 22, a gas sensor 23 and a first actuator 24. The compartment body 21 is disposed below the air inlet 121, and is partitioned by a partition 211 to form a first compartment 212 And the second compartment 213, the partition 211 has a gap 214 for the first compartment 212 and the second compartment 213 to communicate with each other, and the first compartment 212 has an opening 215, the second compartment 213 has an air outlet 216, and the bottom of the compartment body 21 is provided with an accommodating groove 217, the accommodating groove 217 is provided for the carrier plate 22 to extend into it for positioning to close the bottom of the compartment body 21, and the carrier plate 22 is provided with a vent 221, And the carrier board 22 is packaged and electrically connected to the gas sensor 23, so that the carrier board 22 is disposed under the compartment body 21, the vent 221 will correspond to the air outlet 216 of the second compartment 213, and the gas sensor 23 penetrates into The opening 215 of the first compartment 212 is located 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 and The gas sensor 23 in the first compartment 212 is isolated, so that the heat source generated when the first actuator 24 is actuated 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 the actuation to generate a guided airflow, and then discharges through the air outlet 216 of the second compartment 213, and then discharges the gas to the compartment body 21 through the vent 221 of the carrier plate 22 outer.

Please continue to refer to FIGS. 3A to 3C. The above-mentioned carrier board 22 may be a circuit board and has a connector 222 on it. The connector 222 is used for a circuit flexible board (not shown) to penetrate and connect to provide The carrier board 22 is electrically and signally connected.

Please refer to FIG. 4A to FIG. 5A again. The above-mentioned first actuator 24 is a gas pump, which includes a gas inlet plate 241, a resonance plate 242, and a piezoelectric actuator 243 which are sequentially stacked. One insulating sheet 244 and one conductive sheet 245. The air intake plate 241 has at least one air intake hole 241a, at least one busbar hole 241b, and a busbar chamber 241c. The number of the above air intake holes 241a and the busbar hole 241b are the same. In this embodiment, the air intake holes 241a The number of the bus bar holes 241b is exemplified by the number of four, which is not limited to this; the four air inlet holes 241a respectively pass through the four bus bar holes 241b, and the four bus bar holes 241b converge to the bus chamber 241c.

The above-mentioned resonance plate 242 can be assembled on the air intake plate 241 by a bonding method, and the resonance plate 242 has a hollow hole 242a, a movable portion 242b, and a fixed portion 242c. The hollow hole 242a is located in the center of the resonance plate 242 And corresponds to the confluence chamber 241c of the air intake plate 241, and the area provided around the hollow hole 242a and opposed to the confluence chamber 241c is the movable portion 242b, and the outer peripheral portion of the resonance sheet 242 is fixed to On the air intake plate 241 is a fixed portion 242c.

The above piezoelectric actuator 243 includes a floating plate 243a, an outer frame 243b, at least one connecting portion 243c, a piezoelectric element 243d, at least one gap 243e and a convex portion 243f; wherein, the floating plate 243a is a square The suspension board has a first surface 2431a and a second surface 2432a opposite to the first surface 2431a. The outer frame 243b surrounds the periphery of the suspension board 243a, and the outer frame 243b has a set of matching surfaces 2431b and a lower surface 2432b, and Connected between the floating plate 243a and the outer frame 243b through at least one connecting portion 243c to provide elastically supporting force of the floating plate 243a, wherein at least one gap 243e is between the floating plate 243a, the outer frame 243b and the connecting portion 243c The gap is for gas to pass through. In addition, the first surface 2431a of the floating plate 243a has a convex portion 243f. In this embodiment, the convex portion 243f is formed by recessing the peripheral edge of the convex portion 243f and the connection portion adjacent to the connection portion 243c through an etching process The convex portion 243f of the floating plate 243a is higher than the first surface 2431a to form a stepped structure.

As also shown in FIG. 5A, the suspension board 243a of this embodiment is stamped to make it sink downward, and the sag distance can be adjusted by forming at least one connecting portion 243c between the suspension board 243a and the outer frame 243b, so that The convex surface 2431f of the convex portion 243f on the floating plate 243a and the mating surface 2431b of the outer frame 243b form a non-coplanar surface, that is, the convex surface 2431f of the convex portion 243f will be lower than the mating 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, and the piezoelectric element 243d is attached to the second surface 2432a of the suspension plate 243a, which is opposite to the convex portion 243f, and the piezoelectric element 243d is applied After the driving voltage is deformed due to the piezoelectric effect, which in turn drives the suspension plate 243a to bend and vibrate; used in the outer frame 243b A small amount of adhesive is coated on the assembly surface 2431b, so that the piezoelectric actuator 243 is bonded to the fixing portion 242c of the resonance sheet 242 by hot pressing, so that the piezoelectric actuator 243 can be assembled with the resonance sheet 242. In addition, the insulating sheet 244 and the conductive sheet 245 are both frame-shaped thin sheets, which are sequentially stacked under the piezoelectric actuator 243. In this embodiment, the insulating sheet 244 is attached to the lower surface 2432b of the outer frame 243b of the piezoelectric actuator 243.

Please continue to refer to FIG. 5A. After the intake plate 241, the resonance plate 242, the piezoelectric actuator 243, the insulating plate 244, and the conductive plate 245 of the first actuator 24 are stacked and combined in sequence, the first of the suspension plates 243a A cavity spacing g is formed between the surface 2431a and the resonance plate 242. The cavity spacing g will affect the transmission effect of the first actuator 24, so maintaining a fixed cavity spacing g provides stability for the first actuator 24 The transmission efficiency is very important. The first actuator 24 of this case uses a stamping method on the suspension plate 243a to make it concave downward, so that both the first surface 2431a of the suspension plate 243a and the mating surface 2431b of the outer frame 243b are non-coplanar, that is, suspended The first surface 2431a of the plate 243a will be lower than the mating 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 A space is formed so as to form an adjustable chamber distance g with the resonance sheet 242, and the structure of the chamber space 246 is directly improved by forming the recessed plate 243a of the piezoelectric actuator 243 with a forming recess. The required cavity spacing g can be completed by adjusting the forming recess distance of the suspension plate 243a of the piezoelectric actuator 243, which effectively simplifies the structural design of adjusting the cavity spacing g, and at the same time achieves the advantages of simplifying the process and shortening the process time. .

FIGS. 5B to 5D are schematic diagrams of the operation of the first actuator 24 shown in FIG. 5A. Please refer to FIG. 5B first. The piezoelectric element 243d of the piezoelectric actuator 243 is deformed and driven by a driving voltage. The suspension plate 243a is displaced downward, and the volume of the chamber space 246 is increased, and a negative pressure is formed in the chamber space 246. The air in the confluence chamber 241c is drawn into the chamber space 246, and the resonance plate 242 is resonated The effect of the principle is shifted downward synchronously, which increases the confluence The volume of the chamber 241c, and because the air in the confluence chamber 241c enters the chamber space 246, the confluence chamber 241c is also in a negative pressure state, and then the air is drawn into the confluence hole 241b and the air inlet hole 241a In the confluence chamber 241c; please refer to FIG. 5C again, the piezoelectric element 243d drives the floating plate 243a to move upward, compresses the chamber space 246, and forces the air in the chamber space 246 to pass downward through the gap 243e to achieve the transmission of air At the same time, the resonance plate 242 is also displaced upward by the suspension plate 243a due to resonance, synchronously pushing the gas in the confluence chamber 241c toward the chamber space 246; finally, please refer to FIG. 5D, when the suspension plate 243a is moved downward When it is driven, the resonance plate 242 is also driven to be displaced downwards. At this time, the resonance plate 242 will move the gas in the compression chamber space 246 to at least one gap 243e, and increase the volume in the confluence chamber 241c to let the gas It can continue to converge in the confluence chamber 241c through the air inlet hole 241a and the bus bar hole 241b. By continuously repeating the above steps, the first actuator 24 can continuously enter the gas from the air inlet hole 241a, and then by at least A gap 243e is transmitted downward to continuously draw gas from outside the gas detection device to provide gas to the gas sensor 23 for sensing, thereby improving sensing efficiency.

Please continue to refer to FIG. 5A. Another embodiment of the first actuator 24 is a microelectromechanical system gas pump, in which the air intake plate 241, the resonance plate 242, the piezoelectric actuator 243, the insulating plate 244, the conductive All the pieces 245 can be made by surface micromachining technology to reduce the volume of the first actuator 24.

Please continue to refer to FIG. 6 and FIG. 7, when the gas detection module 2 is embedded in the casing 11 of the casing body 1, the casing body 1 is illustrated in the figure for the convenience of explaining the gas detection module 2. For the direction of gas flow, the case body 1 is hereby transparentized in the illustration for illustration, and the air inlet 121 of the case body 1 corresponds to the first compartment 212 of the compartment body 21 and the inlet of the case body 1 The gas port 121 does not directly correspond to the gas sensor 23 located in the first compartment 212, that is, the gas port 121 is not directly located above the gas sensor 23, and the two are misaligned with each other. Through the control action of the first actuator 24, the negative pressure in the second compartment 213 starts to be formed, and the external air outside the cabinet body 1 starts to be drawn, and is introduced into the first compartment 212, so that the first compartment 212 The gas sensor 23 starts to monitor the gas flowing on its surface to detect the quality of the gas outside the casing body 1. When the first actuator 24 continues to operate, the monitored gas will pass through the The notch 214 is introduced into the second compartment 213, and finally discharged out of the compartment body 21 through the air outlet 216 and the vent 221 of the carrier plate 22 to form a one-way gas conduction monitoring (air flow indicated by the sixth icon) Path A direction).

The above gas sensor 23 includes 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 of at least one of them; or, the above gas The sensor 23 may be at least one of a bacterial sensor, a virus sensor, or a microbial sensor, or a combination thereof.

As can be seen from the above description, the gas detection device provided in this case can use the gas detection module 2 to monitor the ambient air quality of the user at any time, and the first actuator 24 can quickly and stably introduce gas into the gas detection module In 2, the efficiency of the gas sensor 23 is not only improved, but also the design of the first compartment 212 and the second compartment 213 of the compartment body 21 separates the first actuator 24 and the gas sensor 23 from each other, so that the gas sensor 23 During the monitoring, it can block the influence of the heat source of the first actuator 24, so as not to affect the monitoring accuracy of the gas sensor 23. In addition, it can not be affected by other components in the device, so that the gas detection device can detect at any time and anywhere The purpose of the test is to have a fast and accurate monitoring effect.

Please refer to FIG. 2, FIG. 8 and FIG. 9 again, the gas detection device provided in this case further has a particle monitoring module 3 for monitoring particles in the gas, and the particle monitoring module 3 is provided in the casing body 1 The monitoring chamber 12 includes a ventilation inlet 31, a ventilation outlet 32, a particle monitoring base 33, a carrying partition 34, a laser emitter 35, a second actuator 36 and a particle sensor 37 , Where the ventilation inlet 31 and the ventilation outlet 32 communicate with the monitoring chamber 12 The gas in the monitoring chamber 12 is drawn into the particle monitoring module 3 through the ventilation inlet 31, and then discharged 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 internal space of the particle monitoring module 3 defines a first compartment 38 and a second compartment 39 by the carrying partition 34, and the carrying partition 34 has a communication port 341 to connect the first compartment 38 and the third compartment The second compartment 39 and the second compartment 39 communicate with the vent 32, and the particle monitoring base 33 is adjacent to the carrying partition 34 and is accommodated in the first compartment 38, and the particle monitoring base 33 has a The receiving slot 331, a monitoring channel 332, a light beam channel 333 and a receiving chamber 334, wherein the receiving slot 331 directly corresponds to the ventilation inlet 31 vertically, the monitoring channel 332 is disposed below the receiving slot 331, and communicates with the bearing partition The communication port 341 of 34, and the accommodating chamber 334 are arranged on the side of the monitoring channel 332, and the beam channel 333 is communicated between the accommodating chamber 334 and the monitoring channel 332, and the beam channel 333 directly crosses the monitoring channel 332 directly, such particles Inside the monitoring module 3, a ventilation inlet 31, a receiving groove 331, a monitoring channel 332, a communication port 341, and a ventilation outlet 32 constitute a unidirectional gas channel for sending and discharging gas, that is, a path in the direction indicated by the arrow in FIG. 9.

The above-mentioned laser emitter 35 is disposed in the accommodating chamber 334, the second actuator 36 is structured on the receiving groove 331, and the particle sensor 37 is electrically connected to the bearing partition 34, and is located below the monitoring channel 332, In this way, the laser beam emitted by the laser emitter 35 is irradiated into the beam channel 333, and the beam channel 333 guides the laser beam to the monitoring channel 332 to irradiate the suspended particles contained in the gas in the monitoring channel 332, When the suspended particles are irradiated with the light beam, a plurality of light spots will be generated, projected on the surface of the particle sensor 37 and received, so that the particle sensor 37 can sense the particle size and concentration of the suspended particles. The particle sensor of this embodiment is a PM2.5 sensor.

As can be seen from the above, the monitoring channel 332 of the particle monitoring module 3 directly corresponds to the ventilation inlet 31 directly, so that the air can be directly guided above the monitoring channel 332 without affecting the airflow introduction, and the second actuator 36 is constructed on the receiving groove 331 , Inhale the gas guide outside the ventilation inlet 31, so it can be added The fast gas is introduced into the monitoring channel 332 and is detected by the particle sensor 37 to improve the efficiency of the particle sensor 37.

Please continue to refer to FIG. 9. In addition, the aforementioned carrier partition 34 has an exposed portion 342 that extends through the outside of the particle monitoring module 3. The exposed portion 342 has a connector 343 for the circuit board to extend through In connection, it is used to provide electrical connection and signal connection of the bearing partition 34. In this embodiment, the carrying partition 34 is a circuit board, but it is not limited thereto.

Understand the above characteristics description of the particle monitoring module 3, the following describes the structure and operation mode of the second actuator 36: please refer to Figure 10, Figure 11A to Figure 11C, the second actuation The actuator 36 is a gas pump, and the second actuator 36 includes a jet orifice piece 361, a cavity frame 362, an actuator 363, an insulating frame 364, and a conductive frame 365 which are sequentially stacked; the jet orifice piece 361 includes a plurality of A bracket 361a, a suspension piece 361b and a hollow hole 361c, the suspension piece 361b can bend and vibrate, a plurality of brackets 361a are adjacent to the periphery of the suspension piece 361b, in this embodiment, the number of the brackets 361a is four, respectively adjacent to the suspension The four corners of the piece 361b, but not limited to this, and the hollow hole 361c is formed in the center of the suspension piece 361b; the cavity frame 362 bears the stack on the suspension piece 361b, and the actuator 363 bears the stack on the cavity frame 362, and includes a piezoelectric carrier plate 363a, a tuning resonance plate 363b, a piezoelectric plate 363c, wherein the piezoelectric carrier plate 363a is stacked on the cavity frame 362, the tuning resonance plate 363b is stacked On the piezoelectric carrier board 363a, the piezoelectric board 363c is loaded and stacked on the tuning resonance board 363b, which is deformed after the voltage is applied to drive the piezoelectric carrier board 363a and the tuning resonance board 363b to perform reciprocating bending vibration; the insulating frame 364 is The carrier is stacked on the piezoelectric carrier 363a of the actuating body 363, and the conductive frame 365 is stacked on the insulating frame 364, wherein a resonance chamber is formed between the actuating body 363, the cavity frame 362 and the suspension piece 361b 366.

Please refer to FIG. 11A to FIG. 11C again for the schematic diagram of the operation of the second actuator 36 in this case. Please refer to FIG. 9 and FIG. 11A first, the second actuator 36 allows the second actuator 36 to be disposed above the receiving groove 331 of the particle monitoring base 33 through the bracket 361a, and the air injection hole piece 361 and the receiving groove 331 The bottom surfaces of the two are spaced apart, and a gas flow chamber 367 is formed between the two; please refer to FIG. 11B again, 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 At the same time, the tuning resonance plate 363b and the piezoelectric carrier plate 363a are simultaneously driven. At this time, the air jet orifice 361 will be driven together by the principle of Helmholtz resonance, so that the actuating body 363 moves upwards, because the actuating body 363 Displaced upward, the volume of the airflow 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 will be controlled by the air injection hole due to the pressure gradient The gap between the bracket 361a of the piece 361 and the side wall of the receiving groove 331 enters the airflow chamber 367 and collects pressure; finally, referring to FIG. 11C, the gas continuously enters the airflow chamber 367, so that the airflow chamber 367 The air pressure forms a positive pressure. At this time, the actuating body 363 is driven downward by the voltage to compress the volume of the airflow chamber 367 and push the gas in the airflow chamber 367 to make the gas enter the monitoring channel 332 and provide the gas The particle sensor 37 is provided to detect the concentration of suspended particles in the gas through the particle sensor 37.

The above-mentioned second actuator 36 is a gas pump. Of course, the second actuator 36 in this case can also be a micro-electro-mechanical system gas pump manufactured by a micro-electro-mechanical process. The body frame 362, the actuating body 363, the insulating frame 364, and the conductive frame 365 can all be made by surface micromachining technology to reduce the volume of the second actuator 36.

Referring again to FIGS. 8 and 12, the control module 5 in this case includes a processor 51, which is connected to the gas detection module 2, the particle monitoring module 3, and the connection port 13, so that the processor 51 It can control the activation of the first actuator 24 and the second actuator 36, and convert the detection results of the gas sensor 23 and the particulate sensor 37 into a monitoring data storage, and can be transmitted to the line The device 4 is displayed and uploaded 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., to display monitoring data and send an alarm. It can be transmitted to the external device 6 by wireless, such as: Wi-Fi module, Bluetooth module, radio frequency identification module, a near field communication module and other wireless interface for external transmission.

Referring to FIG. 13, the control module 5 further includes a power supply module 52 to provide stored power and output power, and can be coupled with an external power supply device 7 to conduct power and receive power for storage, so that power is provided to the processor 51 So that the processor 51 can provide electrical and driving signals to the gas detection module 2 and the particle monitoring module 3. The power supply device 7 transmits the electrical energy to the power supply module 52 for storage in a wired or wireless conduction manner, and the power supply module 52 further includes at least one rechargeable battery. In addition, the power supply module 52 receives and outputs electrical energy in a wired transmission mode or a wireless transmission mode. The aforementioned external device 6 is at least one of a cloud system, a portable device, a computer system, etc.

In summary, the gas detection device provided in this case uses the casing body to accommodate the mobile device, and then connects the mobile device to the control module through the connection port, so that the gas detection module and the particle monitoring module can be used at any time. The ambient air quality around the user can be transferred to the mobile device in time to achieve the purpose of detecting air quality anytime and anywhere, without increasing the user's burden of carrying an air quality sensor in order to know the air quality. And the first actuator can be used to quickly and stably introduce gas into the gas detection module, which not only improves the efficiency of the gas sensor, but also separates the first actuator and the gas sensor from each other through the design of the compartment of the compartment body So that the gas sensor can block and reduce the influence of the heat source of the first actuator during monitoring, so as not to affect the monitoring accuracy of the gas sensor, and also not be affected by other components (control modules) in the device, so as to reach the gas detection device The purpose of detection can be anytime, anywhere, and it can have a fast and accurate monitoring effect. In addition, the surrounding environment is monitored by the particle monitoring module The concentration of particles in the air, and provide monitoring information to external devices, you can get information in real time, as a warning to inform people in the environment, can prevent or escape in time, to avoid exposure to the environment caused by human health effects and injuries .

This case may be modified by any person familiar with the technology, such as Shi Shisi, but none of them are as protected as the scope of the patent application.

1‧‧‧Chassis body

11‧‧‧Set of holding slots

12‧‧‧Monitoring chamber

121‧‧‧Air inlet

13‧‧‧Port

Claims (23)

A gas detection device includes: a casing body, including a set of containing grooves and a monitoring chamber, the set of containing grooves is integrated with a mobile device sleeve; a gas detection module is set on the The monitoring chamber of the casing body includes a gas sensor and a first actuator. The first actuator controls the introduction of gas into the gas detection module and monitors the gas sensor; a particle monitoring module Group, which is set in the monitoring chamber of the casing body, and includes a second actuator and a particle sensor, the second actuator controls the gas to be introduced into the particle monitoring module, and the particle sensor detects the gas The particle size and concentration of the suspended particles contained in it; and a control module to control the driving signals of the gas detection module and the particle monitoring module to monitor the start-up operation, and the gas detection module and the particle monitoring module The monitoring data of the group is converted into a monitoring data storage, and sent to the mobile device for display and uploaded to an external device for storage. The gas detection device as described in item 1 of the patent application scope, wherein the casing body is provided with a connection port for connecting the mobile device, so that the mobile device provides electric energy to the gas detection module and the control module. The gas detection device as described in item 1 of the patent application scope, wherein the monitoring chamber is provided with an air inlet and an air outlet. A gas detection device as described in item 3 of the patent application range, wherein the gas detection module includes a compartment body and a carrier plate, the compartment body is disposed below the air inlet, and the interior is distinguished by a partition A first compartment and a second compartment are formed, the partition has a gap for the first compartment and the second compartment to communicate with each other, and the first compartment has an opening, the second compartment has An air outlet, and the carrier plate is arranged under the compartment body and encapsulates and electrically connects the gas sensor, and the gas sensor penetrates into the opening and is located in the first compartment, and the first actuation The device set is isolated from the gas sensor in the second compartment, and the first actuator controls the gas to be introduced from the air inlet, and is monitored through the gas sensor, and then passes through the air outlet of the body of the compartment Drain out of the monitoring chamber. The gas detection device as described in item 1 of the patent application scope, wherein the gas sensor of the gas detection module includes at least one of an oxygen sensor, a carbon monoxide sensor, and a carbon dioxide sensor or Any combination of groups. The gas detection device as described in item 1 of the patent application scope, wherein the sensor of the gas detection module includes a volatile organic compound sensor. The gas detection device according to item 1 of the patent application scope, wherein the sensor of the gas detection module is at least one of a bacterial sensor, a virus sensor, or a microbial sensor or a combination thereof. The gas detection device as described in item 1 of the patent application scope, wherein the first actuator of the gas detection module is a microelectromechanical system gas pump. The gas detection device as described in item 1 of the patent application scope, wherein the first actuator of the gas detection module is a gas pump, which includes: an air inlet plate with at least one air inlet hole, at least A busbar hole and a busbar chamber, wherein the at least one air inlet hole is for introducing airflow, the busbar hole corresponds to the air inlet hole, and guides the airflow of the air inlet hole to the busbar chamber; a resonance sheet, Having a hollow hole corresponding to the confluence chamber, and a surrounding part of the hollow hole is a movable part; and a piezoelectric actuator, corresponding to the resonant plate; wherein, the resonant plate and the piezoelectric actuator There is a chamber space, so that when the piezoelectric actuator is driven, the air flow is introduced from the at least one air inlet hole of the air inlet plate, and is collected into the confluence chamber through the at least one bus row hole, and then The hollow hole flowing through the resonant plate generates a resonance transmission air flow by the piezoelectric actuator and the movable portion of the resonant plate. A gas detection device as described in item 9 of the patent application range, wherein the piezoelectric actuator includes: a floating plate having a first surface and a second surface, the first surface having a convex portion; an outer The frame surrounds the suspension plate and has a set of matching surfaces; at least one bracket is connected between the suspension plate and the outer frame to provide elastic support for the suspension plate; and a piezoelectric element is attached On the second surface of the suspension plate, for applying a voltage to drive the suspension plate to flex and vibrate; wherein, the at least one bracket is formed between the suspension plate and the outer frame, and the first of the suspension plate is formed The surface and the mating surface of the outer frame are formed into a non-coplanar structure, and the first surface of the suspension plate and the resonant sheet are kept at a cavity distance. The gas detection device as described in item 9 of the patent application range, wherein the gas pump includes a conductive sheet and an insulating sheet, wherein the gas inlet plate, the resonance sheet, the piezoelectric actuator, the conductive sheet and The insulating sheets are stacked in sequence. The gas detection device as described in item 1 of the patent application scope, wherein the control module includes a power supply module to provide stored electrical energy and output electrical energy, and the electrical energy can be provided to the electrical property of the gas detection module. The gas detection device as described in item 12 of the patent application scope, wherein the power supply module receives stored electrical energy by wired transmission. The gas detection device as described in item 12 of the patent application scope, in which the power supply module outputs the electrical energy by wired transmission. The gas detection device as described in item 12 of the patent application scope, wherein the power supply module receives stored electrical energy by wireless transmission. The gas detection device as described in item 12 of the patent application scope, wherein the power supply module outputs electrical energy with wireless transmission. The gas detection device as described in item 12 of the patent application range, wherein the power supply module includes at least one rechargeable battery to store electrical energy and output electrical energy. The gas detection device as described in item 2 of the patent application range, wherein the control module includes a processor to control the gas sensor of the gas detection module and the driving signal of the first actuator to start, and The detection results of the gas sensor and the particle sensor are converted into a monitoring data, and the monitoring data is connected to the mobile device through the connection port for display and uploaded to an external device for storage. The gas detection device as described in item 18 of the patent application range, wherein the external device is at least one of a cloud system, a portable device, a computer system, and the like. The gas detection device as described in item 1 of the patent application scope, wherein the particle monitoring module includes a ventilation inlet, a ventilation outlet, a carrying baffle, a particle monitoring base and a laser emitter, the ventilation inlet The ventilation outlet communicates with the monitoring chamber, and the internal space of the particle monitoring module defines a first compartment and a second compartment by the carrying partition, and the carrying partition has a communication port, The first compartment communicates with the second compartment, and the first compartment communicates with the vent inlet, the second compartment communicates with the vent outlet, and the particle monitoring base is adjacent to the carrying partition and accommodates Placed in the first compartment, it has a receiving groove, a monitoring channel, a light beam channel and a containing chamber, the receiving groove directly corresponds to the ventilation inlet directly, and the second actuator is disposed on the bearing Placed on the slot, and the monitoring channel is arranged below the receiving slot, and the accommodating chamber is provided on one side of the monitoring channel to accommodate and position the laser emitter, and the beam channel is connected to the accommodating chamber and the Between the monitoring channels, and directly across the monitoring channel vertically, guiding the laser beam emitted by the laser emitter to irradiate the monitoring channel, and the particle sensor is disposed below the monitoring channel to promote the second actuation The device controls the gas from the vent inlet into the receiving slot and is introduced into the monitoring channel, and is irradiated by the laser beam emitted by the laser emitter to project the light spot in the gas to the surface of the particle sensor to detect the gas The particle size and concentration of the suspended particles are discharged from the vent outlet. The gas detection device as described in item 10 of the patent application range, wherein the second actuator of the particle monitoring module is a gas pump, which includes: a gas jet orifice plate, including a plurality of brackets, and a suspension plate And a hollow hole, the suspension piece can bend and vibrate, the plurality of brackets are adjacent to the periphery of the suspension piece, and the hollow hole is formed at the center of the suspension piece, and the support groove is provided through the plurality of brackets to provide elastic support The suspension sheet, and an air flow chamber is formed between the air jet orifice sheet and the receiving groove, and at least one gap is formed between the plurality of brackets and the suspension sheet; a cavity frame, bearing and stacked on the suspension sheet ; Actuating body, the bearing stack is placed on the cavity frame to receive voltage to generate reciprocating bending vibration; an insulating frame, the bearing stack is placed on the actuating body; and a conductive frame, the bearing stack is provided on the On the insulating frame; wherein, a resonance chamber is formed between the actuating body, the cavity frame and the suspending plate, and the actuating body is driven to drive the air jet orifice plate to generate resonance, so that the air jet orifice plate is suspended The sheet generates a reciprocating vibration displacement to cause the gas to enter the airflow chamber through the at least one gap and then be discharged from the monitoring channel to realize the transmission flow of the gas. The gas detection device as described in item 21 of the patent application range, wherein the actuating body includes: a piezoelectric carrier plate bearing the stack on the cavity frame; an adjustment resonance plate bearing the piezoelectric stack A carrier board; and a piezoelectric board, the carrier is stacked on the tuning resonance board to receive the voltage to drive the piezoelectric carrier board and the tuning resonance board to generate reciprocating bending vibration. The gas detection device as described in item 1 of the patent application scope, wherein the second actuator of the particle monitoring module is a microelectromechanical system gas pump.

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