TWI678521B - Gas detecting device - Google Patents

Abstract

A gas detection device includes: a gas detection module including a gas sensor and a gas actuator; the gas actuator controls the introduction of gas into the gas detection module and is monitored by the gas sensor; the particle monitoring module includes particle activation And particle sensors, particle actuators control the introduction of gas into the particle monitoring module, and the particle size and concentration of suspended particles contained in the gas are detected by the particle sensor; the power supply module provides stored electrical energy and output electrical energy, which can be used for gas detection Modules and particle monitoring modules; and control modules, which are powered by the power supply module to control the gas detection module and the particle monitoring module, and convert the monitoring data of the gas detection module and the particle monitoring module into monitoring Data is stored and can be transferred to external devices for storage.

Description

Gas detection device

This case relates to a gas detection device, especially a thin, portable gas detection device capable of gas monitoring and outputting electric power.

Modern people pay more and more attention to the gas quality around their lives, such as carbon monoxide, carbon dioxide, Volatile Organic Compound (VOC), PM2.5, nitric oxide, sulfur monoxide and other gases, and even gas The particles contained will be exposed to the environment, affecting human health, and seriously endangering life. Therefore, the quality of the ambient gas has attracted attention from various countries. At present, it is urgently needed 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 ambient gas. If the monitoring information can be provided in real time, people in the environment can be warned to prevent or escape immediately to avoid suffering from the environment. The impact of gas exposure on human health and injuries, using gas sensors to monitor the surrounding environment is a very good application.

However, portable devices are mobile devices that modern people will carry when they go out. Therefore, it is very important to embed gas detection modules in portable devices, especially the current development trend of portable devices is light and thin. In the case of high performance, how to make the gas detection module thin and assembled in a portable device for use is an important subject developed in this case.

The main purpose of this case is to provide a gas detection device, which is a thin portable device. The gas detection module can monitor the air quality of the user's surroundings at any time, and the gas actuator can be used to quickly and stably introduce gas into the gas. The detection module not only improves the efficiency of the gas sensor, but also separates the gas actuator and the gas sensor from each other through the compartment design of the compartment body, so that the gas sensor can block and reduce the influence of the heat source of the gas actuator when monitoring. It will not affect the monitoring accuracy of the sensor, and it will not be affected by other components (control modules) in the device. The purpose of the gas detection device can be detected at any time and anywhere, and it can also have fast and accurate monitoring effects. In addition, Equipped with a particle monitoring module to monitor the concentration of particulates in the air in the surrounding environment, and provide monitoring information for transmission to external devices, which can obtain information in real time as a warning to inform people in the environment, can prevent or escape immediately, avoid suffering Exposure to gas in the environment causes human health effects and injuries.

A broad implementation of this case is a gas detection device, including: at least one gas detection module, including a gas sensor and a gas actuator, the gas actuator controls the introduction of gas into the gas detection module, and Monitored by the gas sensor; at least one particle monitoring module includes a particle actuator and a particle sensor, the particle actuator controls the introduction of gas into the particle monitoring module, and the suspension contained in the gas is detected by the particle sensor Particle size and concentration of particles; at least one power supply module providing stored power and output power, which can be provided to the gas detection module and the particle monitoring module; and a control module provided by the power supply module. The group provides electric energy to control the driving signals of the gas detection module and the particle monitoring module to monitor the startup operation, and converts the monitoring data of the gas detection module and the particle monitoring module into a monitoring data storage, and can Send to an external device for storage.

1‧‧‧ Ontology

11‧‧‧ chamber

12‧‧‧ the first air inlet

13‧‧‧Second air inlet

14‧‧‧ Outlet

2‧‧‧Gas detection module

21‧‧‧ compartment body

211‧‧‧ septa

212‧‧‧First compartment

213‧‧‧Second Compartment

214‧‧‧ gap

215‧‧‧ opening

216‧‧‧Air vent

217‧‧‧Receiving slot

22‧‧‧ Carrier Board

221‧‧‧Vent

222‧‧‧Connector

23‧‧‧Gas sensor

24‧‧‧Gas actuator

241‧‧‧Air intake plate

241a‧‧‧Air inlet

241b‧‧‧ Bus hole

241c‧‧‧Confluence chamber

242‧‧‧Resonator

242a‧‧‧Hollow hole

242b‧‧‧movable part

242c‧‧‧Fixed section

243‧‧‧ Piezo actuator

243a‧‧‧ Suspension board

2431a‧‧‧First surface

2432a‧‧‧Second surface

243b‧‧‧frame

2431b‧‧‧Assembled surface

2432b‧‧‧ lower surface

243c‧‧‧Connection Department

243d‧‧‧Piezoelectric element

243e‧‧‧Gap

243f‧‧‧ convex

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‧‧‧Receiving trough

332‧‧‧Monitoring Channel

333‧‧‧ Beam Channel

334‧‧‧accommodation room

34‧‧‧ bearing partition

341‧‧‧port

342‧‧‧Exposed

343‧‧‧Connector

35‧‧‧Laser Launcher

36‧‧‧ Particle actuator

361‧‧‧air hole film

361a‧‧‧Connector

361b‧‧‧ Suspension Tablet

361c‧‧‧Hollow

362‧‧‧cavity frame

363‧‧‧Actuator

363a‧‧‧ Piezo Carrier Board

363b‧‧‧Adjust resonance plate

363c‧‧‧piezo plate

364‧‧‧Insulated frame

365‧‧‧ conductive frame

366‧‧‧Resonant Chamber

367‧‧‧Airflow chamber

37‧‧‧ Particle Sensor

38‧‧‧ the first compartment

39‧‧‧Second Compartment

4‧‧‧ Power Supply Module

5‧‧‧control module

51‧‧‧ processor

52‧‧‧Communication components

6‧‧‧ external device

L‧‧‧ length

W‧‧‧Width

H‧‧‧ height

A‧‧‧Airflow path

C‧‧‧Wired Interface

g‧‧‧chamber spacing

FIG. 1A is a schematic three-dimensional view of the gas detection device in this case.

Figure 1B is a schematic front view of the gas detection device of the case.

Figure 1C is a schematic front view of the gas detection device of the case.

Figure 1D is a schematic diagram of the right side of the gas detection device of the case.

Figure 1E is a schematic diagram of the left side of the gas detection device in this case.

Fig. 2 is a schematic cross-sectional view taken along the line A-A in Fig. 1B.

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

FIG. 3B is a schematic diagram of the external appearance of the relevant components of the gas detection module of the gas detection device of the case.

FIG. 3C is an exploded view of the relevant components of the gas detection module of the gas detection device of the case.

FIG. 4A is an exploded view of the gas actuator of the gas detection module of the present case.

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

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

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

FIG. 6 is a three-dimensional schematic view of the gas flow direction of the gas detection module of the gas detection device of the case.

FIG. 7 is a partially enlarged schematic diagram of the gas flow direction of the gas detection module of the gas detection device of the case.

FIG. 8 is a schematic diagram of the particle monitoring module and the control module of the gas detection device of the case.

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

FIG. 10 is an exploded view of relevant components of the particle actuator of the particle monitoring module of the case.

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

FIG. 12 is a schematic diagram of the control operation of the relevant components of the control module of the gas detection device of the case.

Some typical embodiments embodying the features and advantages of this case will be described in detail in the description in the subsequent paragraphs. It should be understood that the present case can have various changes in different aspects, all of which do not depart from the scope of the present case, and the descriptions and diagrams therein are essentially for the purpose of illustration, rather than limiting the case.

Please refer to FIG. 1A to FIG. 1E and FIG. 2. This case provides a gas detection device including a body 1, at least one gas detection module 2, at least one particle monitoring module 3, at least one power supply module 4, and At least one control module 5, in order to avoid redundant description, the following embodiments are described, and the number of the gas detection module 2, the particle monitoring module 3, the power supply module 4, and the control module 5 are all described by way of example, but not by way of example. This is limited. The gas detection device needs to form a thin portable device, so the appearance structure design needs to be easy for users to hold, not easy to drop, and convenient to carry, and it is necessary to design a thin rectangular body in the appearance size of the body 1. Therefore, the appearance design of the body 1 of this case has a length L, a width W, and a height H, and according to the current gas detection module 2, particle monitoring module 3, power supply module 4, and control module 5 can be configured in In order to meet the optimized configuration design, the length L of the body 1 is 92 ~ 102mm, the length L is 97mm is the best, the width W is 41 ~ 61mm, and the width W is 51mm is the best, and height H is 19 ~ 23mm, and height H is 21mm is the best. This is an implementation design that is easy for users to hold, not easy to drop, and easy to carry. There is a chamber 11 inside the body 1, and a first air inlet 12 and a second air inlet 13 and an air outlet 14 are communicated with the chamber 11. In the following embodiment, the gas detection device The number of gas detection modules 2, particle monitoring modules 3, and power supply modules 4 are all used as examples, but not limited to this. The gas detection modules 2, particle monitoring modules 3, and power supply modules 4 are also Can be used for multiple at the same time.

Referring to FIG. 2 and FIGS. 3A to 3C, the aforementioned gas detection module 2 includes a compartment body 21, a carrier plate 22, a gas sensor 23, and a gas actuator 24. The compartment body 21 is disposed below the first air inlet 12 of the body 1 and is divided into a first compartment 212 and a second compartment 213 by a partition 211. The partition 211 has a gap 214 for the first A compartment 212 and a second compartment 213 communicate with each other, and the first compartment 212 has an opening 215, the second compartment 213 has an air outlet 216, and a receiving groove 217 is provided at the bottom of the compartment body 21 for receiving. The slot 217 is for the carrier board 22 to be inserted into and positioned to close the bottom of the compartment body 21. The carrier board 22 is provided with an air vent 221, and the carrier board 22 is packaged and electrically connected to a gas sensor 23. The plates 22 are arranged below 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 the opening 215 of the first compartment 212 and is located in the first compartment 212 Is used to detect the gas in the first compartment 212, and the gas actuator 24 is provided in the second compartment 213, and is isolated from the gas sensor 23 provided in the first compartment 212, so that the gas actuator 24 The heat source generated during the operation can be blocked by the spacer 211 without affecting the detection result of the gas sensor 23. And the gas actuator 24 closes the bottom of the second compartment 213, and controls the actuation to generate a guided airflow, which is then discharged through the air outlet 216 of the second compartment 213, and passes the gas through the vent 221 of the carrier 22 to discharge the gas It is discharged out of the compartment body 21.

Please continue to refer to FIG. 3A to FIG. 3C. The above-mentioned carrier board 22 may be a circuit board, and there is a connector 222 on the connector 222 for a circuit flexible board (not shown) to pass through and provide connection. The carrier board 22 is electrically and signally connected.

Please refer to FIG. 4A to FIG. 5A again. The above-mentioned gas actuator 24 is a gas pump, which includes an air intake plate 241, a resonance plate 242, a piezoelectric actuator 243, a The insulating sheet 244 and a 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 cavity 241c. The above-mentioned air intake holes 241a and the busbar holes 241b have the same number. In this embodiment, the air intake holes 241a Take the number of bus holes 241b as an example Note that, this is not limited; the four air inlet holes 241a respectively penetrate the four busbar holes 241b, and the four busbar holes 241b converge to the busbar chamber 241c.

The above-mentioned resonance plate 242 can be assembled on the air intake plate 241 by a lamination method. The resonance plate 242 has a hollow hole 242a, a movable portion 242b, and a fixed portion 242c. The hollow hole 242a is located at the center of the resonance plate 242. And corresponds to the confluence chamber 241c of the air intake plate 241, and a region provided around the hollow hole 242a and facing the confluence chamber 241c is a movable portion 242b, and an outer peripheral portion of the resonance plate 242 is fixedly attached to The air intake plate 241 is a fixed portion 242c.

The above-mentioned piezoelectric actuator 243 includes a suspension plate 243a, an outer frame 243b, at least one connection portion 243c, a piezoelectric element 243d, at least one gap 243e, and a convex portion 243f; wherein the suspension plate 243a is a square The suspension board has a first surface 2431a and a second surface 2432a opposite to the first surface 2431a. An outer frame 243b is arranged around the periphery of the suspension plate 243a. The outer frame 243b has a set of matching surfaces 2431b and a lower surface 2432b. The at least one connection portion 243c is connected between the suspension plate 243a and the outer frame 243b to provide a supporting force for elastically supporting the suspension plate 243a, wherein at least one gap 243e is between the suspension plate 243a, the outer frame 243b and the connection portion 243c. A gap for the passage of gas. In addition, the first surface 2431a of the suspension plate 243a has a convex portion 243f. In this embodiment, the peripheral portion of the convex portion 243f and the connection portion adjacent to the connection portion 243c are etched through the etching process to make it concave, so that The convex portion 243f of the suspension plate 243a is higher than the first surface 2431a to form a stepped structure.

As shown in FIG. 5A, the suspension plate 243a of this embodiment is formed by pressing to sag downward. The depression distance can be adjusted by forming at least one connection portion 243c between the suspension plate 243a and the outer frame 243b. The convex surface 2431f of the convex portion 243f on the suspension plate 243a and the matching 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 matching 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 of the suspension plate 243a 2432a, which is opposite to the convex portion 243f. The piezoelectric element 243d is deformed due to the piezoelectric effect after the driving voltage is applied, which drives the suspension plate 243a to bend and vibrate. It is used to apply a small amount of adhesive on the assembly surface 2431b of the outer frame 243b. The piezoelectric actuator 243 is adhered to the fixing portion 242c of the resonance plate 242 by a hot pressing method, so that the piezoelectric actuator 243 can be combined with the resonance plate 242 in combination. In addition, the insulating sheet 244 and the conductive sheet 245 are frame-shaped thin sheet bodies, which 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.

Please continue to refer to FIG. 5A. After the air intake plate 241, the resonance plate 242, the piezoelectric actuator 243, the insulation plate 244, and the conductive plate 245 of the gas actuator 24 are sequentially stacked and combined, the first surface of the suspension plate 243a A cavity distance g is formed between 2431a and the resonance plate 242. The cavity distance g will affect the transmission effect of the gas actuator 24. Therefore, maintaining a fixed cavity distance g provides a stable transmission efficiency for the gas actuator 24 Is very important. The gas actuator 24 of the present case uses a punching method for the suspension plate 243a so that it is recessed downward, so that the first surface 2431a of the suspension plate 243a and the combined surface 2431b of the outer frame 243b are non-coplanar, that is, the suspension plate The first surface 2431a of 243a will be lower than the matching 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 and formed A space needs to form an adjustable cavity distance g with the resonance plate 242, and the structure of a cavity space 246 is directly improved by adopting the above-mentioned suspension plate 243a of the piezoelectric actuator 243 to form a cavity. The required cavity distance g can be completed by adjusting the recessed distance of the suspension plate 243a of the piezoelectric actuator 243, which effectively simplifies the structural design of adjusting the cavity distance g, and also achieves the advantages of simplified manufacturing process and shortened manufacturing time.

5B to 5D are schematic diagrams of the operation of the gas actuator 24 shown in FIG. 5A. Please refer to FIG. 5B first. The piezoelectric element 243d of the piezoelectric actuator 243 is deformed to cause suspension after being applied with a driving voltage. The plate 243a is displaced downward, at this time, the volume of the chamber space 246 increases, A negative pressure is formed in 246, and the air in the confluence chamber 241c is drawn into the chamber space 246. At the same time, the resonance plate 242 is affected by the resonance principle and is simultaneously displaced downward. The volume of the confluence chamber 241c is increased, and The relationship between the air in the bus chamber 241c entering the chamber space 246 causes the same in the bus chamber 241c to be in a negative pressure state, and then the air is drawn into the bus chamber 241c through the bus holes 241b and the air inlet holes 241a; please again Referring to FIG. 5C, the piezoelectric element 243d drives the suspension plate 243a to move upward, compressing the chamber space 246, and forcing the air in the chamber space 246 to transmit downward through the gap 243e. At the same time, the resonance plate 242 Similarly, the suspension plate 243a is displaced upward due to resonance, and simultaneously pushes the gas in the confluence chamber 241c toward the chamber space 246. Finally, referring to FIG. 5D, when the suspension plate 243a is driven downward, the resonance plate 242 is simultaneously Driven to move downward, the resonance plate 242 at this time 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, so that the gas can hold Continuously converge in the convergence chamber 241c through the air inlet hole 241a and the busbar hole 241b. By continuously repeating the above steps, the gas actuator 24 can continuously enter the gas from the air inlet hole 241a, and then through at least one gap 243e is transmitted downward to continuously extract the gas outside the gas detection device to enter and provide gas to the gas sensor 23 for sensing, thereby improving the sensing efficiency.

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

Please continue to refer to FIG. 6 and FIG. 7. When the gas detection module 2 is disposed in the chamber 11 of the body 1, the body 1 is illustrated in the illustration for the convenience of the gas flow direction of the gas detection module 2. 1 is made transparent in the illustration for explanation, and the first air inlet 12 of the body 1 corresponds to the first compartment 212 of the compartment body 21, and the first air inlet 12 of the body 1 and The two gas sensors 23 in the chamber 212 do not directly correspond to each other, that is, the first air inlet 12 is not directly above the gas sensor 23, and the two are misaligned with each other. In this way, the second actuator is controlled by the control of the gas actuator 24. A negative pressure starts to form in the chamber 213, and external air outside the body 1 is drawn and introduced into the first compartment 212, so that the gas sensor 23 in the first compartment 212 starts to monitor the gas flowing over its surface to detect The quality of the gas outside the main body 1 is measured, and when the gas actuator 24 is continuously operated, the monitored gas will be introduced into the second compartment 213 through the gap 214 on the spacer 211, and finally, the gas will be passed through the air outlet 216, the carrier plate 22 The vent 221 is discharged out of the compartment body 21 to constitute a one-way gas conduction monitoring (as indicated by the sixth icon, the direction of the airflow path A).

The above-mentioned gas sensor 23 may be at least one or a combination of an oxygen sensor, a carbon monoxide sensor, a carbon dioxide sensor, a temperature sensor, an ozone sensor, and a volatile organic sensor; or, the above-mentioned gas sensor 23 may be At least one of a bacterial sensor, a virus sensor, or a microbial sensor, or a combination thereof.

From the above description, it can be known that the gas detection device provided in this case can monitor the air quality of the user's surroundings at any time by using the gas detection module 2, and the gas actuator 24 can be used to quickly and stably introduce the gas into the gas detection module 2. In addition, not only the efficiency of the gas sensor 23 is improved, but also through the design of the first compartment 212 and the second compartment 213 of the compartment body 21, the gas actuator 24 and the gas sensor 23 are separated from each other. It can block and reduce the influence of the heat source of the gas actuator 24, and will not affect the monitoring accuracy of the gas sensor 23. In addition, it will not be affected by other components in the device, and the purpose of the gas detection device can be detected anytime, anywhere. , And can have fast and accurate monitoring effect.

Please refer to FIG. 1D, FIG. 1E, FIG. 8 and FIG. 9, the gas detection device provided in this case includes a particle monitoring module 3 for monitoring suspended particles in the gas, and the particle monitoring module 3 is provided at The chamber 11 of the main body 1 contains a ventilation inlet 31, a ventilation outlet 32, and a particle Monitoring base 33, a carrying partition 34, a laser emitter 35, a particulate actuator 36, and a particulate sensor 37, wherein the ventilation inlet 31 corresponds to the second air inlet 13 of the body 1, and the ventilation outlet 32 corresponds to the body The air outlet 14 of 1 allows the gas to enter the particle monitoring module 3 from the ventilation inlet 31 and be discharged from the ventilation outlet 32. The particle monitoring base 33 and the carrying partition 34 are arranged inside the particle monitoring module 3, so that the particles The internal space of the monitoring module 3 defines a first compartment 38 and a second compartment 39 by a carrying partition 34, and the carrying partition 34 has a communication port 341 to communicate the first compartment 38 and the second compartment. 39, and the second compartment 39 communicates with the ventilation outlet 32, and the particle monitoring base 33 is adjacent to the bearing partition 34 and is accommodated in the first compartment 38. The particle monitoring base 33 has a receiving groove 331. A monitoring channel 332, a beam channel 333, and an accommodating chamber 334. The receiving groove 331 directly corresponds to the ventilation inlet 31 directly. The monitoring channel 332 is disposed below the receiving groove 331 and communicates with the bearing partition 34. The port 341 and the accommodation chamber 334 are disposed on the side of the monitoring channel 332, and the light beam The channel 333 is connected between the accommodating chamber 334 and the monitoring channel 332, and the beam channel 333 directly crosses the monitoring channel 332, so that the particle monitoring module 3 is internally provided with a ventilation inlet 31, a receiving slot 331, a monitoring channel 332, and a communication port 341. The venting outlet 32 constitutes a gas channel for guiding and discharging gas in a single direction, that is, a path in a direction indicated by an arrow in FIG. 9.

The above-mentioned laser emitter 35 is disposed in the accommodating chamber 334, the particle actuator 36 is structured on the receiving groove 331, and the particle sensor 37 is electrically connected to the bearing partition 34 and located below the monitoring channel 332. The laser beam emitted by the laser transmitter 35 is irradiated into the beam channel 333. 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, and After the suspended particles are irradiated with the light beam, a plurality of light spots will be generated, which are projected on the surface of the particle sensor 37 and received, so that the particle sensor 37 senses the particle diameter and concentration of the suspended particles. The particulate sensor of this embodiment is a PM2.5 sensor.

It can be known from the above that the monitoring channel 332 of the particle monitoring module 3 directly corresponds to the ventilation inlet 31 directly, so that the upper side of the monitoring channel 332 can directly conduct air without affecting the introduction of airflow, and the particle actuator 36 is structured on the receiving groove 331. The inhalation of the gas outside the ventilation inlet 31 is accelerated, so that the gas can be quickly introduced into the monitoring channel 332 and detected by the particle sensor 37, thereby improving the efficiency of the particle sensor 37.

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

Understand the characteristics of the particle monitoring module 3 described above, and the following describes the structure and operation mode of the particle actuator 36: please refer to FIG. 10, FIG. 11A to FIG. 11C, the above-mentioned particle actuator 36 For a gas pump, the particulate actuator 36 includes an air jet hole sheet 361, a cavity frame 362, an actuator 363, an insulating frame 364, and a conductive frame 365 which are sequentially stacked; the air jet hole sheet 361 includes a plurality of connecting members 361a, a suspension piece 361b, and a hollow hole 361c. The suspension piece 361b can be flexibly vibrated, and a plurality of connecting pieces 361a are adjacent to the periphery of the floating piece 361b. In this embodiment, the number of the connecting pieces 361a is 4 and each is adjacent to the suspension. The four corners of the sheet 361b, but not limited to this, and the hollow hole 361c is formed at the center of the suspension sheet 361b; the cavity frame 362 is carried on the suspension sheet 361b, and the actuator 363 is carried on the cavity frame. 362 includes a piezoelectric carrier plate 363a, an adjustment resonance plate 363b, and a piezoelectric plate 363c. The piezoelectric carrier plate 363a is stacked on the cavity frame 362, and the adjusted resonance plate 363b is stacked on the cavity frame 362. On the piezoelectric carrier plate 363a, the piezoelectric plate 363c supports Stacked on the adjustment resonance plate 363b for deformation after application of voltage to drive the piezoelectric carrier plate 363a and the adjustment resonance plate 363b for reciprocating bending vibration; the insulating frame 364 is a piezoelectric carrier stacked on the actuator 363 On the plate 363a, the conductive frame 365 carries a stack On the insulating frame 364, a resonance chamber 366 is formed between the actuating body 363, the cavity frame 362 and the suspension sheet 361b.

Please refer to FIG. 11A to FIG. 11C for the operation schematic diagram of the particle actuator 36 in this case. Please refer to FIG. 9 and FIG. 11A first. The particle actuator 36 allows the particle actuator 36 to be disposed above the receiving groove 331 of the particle monitoring base 33 through the connecting member 361a. The bottom surface is spaced apart, and an airflow 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 actuator 363, the piezoelectric plate 363c starts to deform due to the piezoelectric effect and The synchronous resonance plate 363b and the piezoelectric carrier plate 363a are synchronously driven. At this time, the air jet hole piece 361 will be driven together by the Helmholtz resonance principle, so that the actuating body 363 moves upward. The displacement causes the volume of the airflow chamber 367 between the air-jet hole sheet 361 and the bottom surface of the receiving groove 331 to increase, and the internal air pressure forms a negative pressure. The air outside the particulate actuator 36 will be caused by the air-jet hole sheet 361 due to the pressure gradient The gap between the connecting piece 361a 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 air pressure in the airflow chamber 367 Positive pressure is formed, and at this time, the actuator 363 receives electricity Drive down 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 to the particle sensor 37 to detect the gas in the gas through the particle sensor 37. Suspended particle concentration.

The above-mentioned particle actuator 36 is a gas pump. Of course, the particle actuator 36 in this case may also be a micro-electro-mechanical system gas pump manufactured by a micro-electro-mechanical process. Among them, the air-jet orifice 361 and the cavity frame 362, the actuating body 363, the insulating frame 364, and the conductive frame 365 can be made by surface micromachining technology to reduce the volume of the particulate actuator 36.

Please refer to FIG. 8 and FIG. 12 again. The control module 5 in this case includes a processor 51 and a communication element 52. The processor 51 controls the communication element 52 and the gas sensor of the gas detection module 2. Of the sensor 23, the gas actuator 24, and the particle sensor 37 of the particle monitoring module 3, and converts the detection results of the gas sensor 23 and the particle sensor 37 into a monitoring data storage, and the monitoring data can be transmitted by the communication element 52. Send link to an external device 6 for storage. The external device 6 may be one of a cloud system, a portable device, a computer system, a display device, and the like, to display monitoring data and communicate alarms. The communication element 52 can be transmitted to the external device 6 through wired transmission or wireless transmission. The wired transmission method, such as USB, mini-USB, micro-USB, etc., is connected to the wired external transmission interface. In this embodiment, as shown in FIG. 1E The wired interface C of the mini-USB indicated by the reference number is used for wired transmission. One of the wireless transmission methods is: Wi-Fi module, Bluetooth module, radio frequency identification module, a near field communication module, etc. Wireless interface (built in communication element 52) for external transmission.

Please continue to refer to FIG. 12. The power supply module 4 in this case can store electrical energy and output electrical energy. The power supply module 4 is electrically connected to the gas detection module 2, the particle monitoring module 3, and the control module 5 to provide electrical energy to the gas detection. Module 2, particle monitoring module 3, control module 5 and other components. In addition, when the external device 6 is a portable electronic device such as a mobile phone, tablet computer, notebook computer, etc., the power supply module 4 can also provide power to External device 6 for charging external device 6 and transmitting power to external device 6 via wireless transmission or wired transmission, so that when the user carries the gas detection device provided in this case, he can not only easily obtain the surroundings anytime, anywhere In addition to the good air quality, the gas detection device can be used as a mobile power source, reducing the burden when users go out.

In summary, the gas detection device provided in this case can use the gas detection module to monitor the air quality around the user at any time, and the gas actuator can be used to quickly and stably introduce the gas into the gas detection module. Improve the efficiency of the gas sensor, and through the compartment design of the compartment body, the gas actuator and the gas sensor are separated from each other, so that when the gas sensor is monitored, the heat source of the gas actuator can be reduced and the monitoring of the gas sensor can be improved. Sex, It can also not be affected by other components (control modules) in the device, achieving the purpose that the gas detection device can detect at any time and anywhere, and can have fast and accurate monitoring effect. In addition, it has a particle monitoring module to monitor the surroundings. The concentration of particulates in the air of the environment, and provides monitoring information to be transmitted to external devices, which can obtain information in real time as a warning to inform people in the environment, can prevent or escape in real time, and avoid human health impacts caused by environmental gas exposure And injury; and the ability to use the power supply module in the gas detection device as a power source instead of a mobile power source, which can reduce the burden on the user when going out.

This case can be modified by anyone who is familiar with this technology, but it is not as bad as the protection of the scope of patent application.

Claims (23)

A gas detection device includes: at least one gas detection module, including a gas sensor and a gas actuator, the gas actuator controls gas to be introduced into the at least one gas detection module, and is monitored by the gas sensor ; At least one particle monitoring module, including a particle actuator and a particle sensor, the particle actuator controls gas to be introduced into the at least one particle monitoring module, and the particle diameter of the suspended particles contained in the gas is detected by the particle sensor; And concentration; at least one power supply module that provides stored electrical energy and output electrical energy, and the electrical energy can be provided to the electrical properties of the at least one gas detection module and the at least one particle monitoring module; a control module by the at least one power supply module The group provides electric energy to control the driving signals of the at least one gas detection module and the at least one particle monitoring module to monitor the startup operation, and performs monitoring data of the at least one gas detection module and the at least one particle monitoring module. Converted into a monitoring data storage and can be transmitted to an external device storage; and a body having a chamber, the body is provided A first intake port, an intake port and a second outlet respectively communicating with the chamber. The gas detection device according to item 1 of the scope of patent application, wherein the at least one gas detection module includes a compartment body and a carrier board, the compartment body is disposed below the first air inlet, and is provided by a A first compartment and a second compartment are formed inside the partition, and 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 two compartments have an air outlet, and the carrier board group is disposed below the compartment body and encapsulates and electrically connects the gas sensor, and the gas sensor penetrates the opening and is located in the first compartment, and the gas An actuator group is provided in the second compartment to be isolated from the gas sensor, and the gas actuator controls the gas to be introduced from the first air inlet, and is monitored through the gas sensor, and then passes through the body of the compartment. The air vent is discharged to the outside. The gas detection device according to item 1 of the patent application scope, wherein the gas sensor of the at least one gas detection module includes one of an oxygen sensor, a carbon monoxide sensor, and a carbon dioxide sensor, or Its combination. The gas detection device according to item 1 of the scope of patent application, wherein the gas sensor of the at least one gas detection module comprises a volatile organic substance sensor. The gas detection device according to item 1 of the scope of patent application, wherein the gas sensor of the at least one gas detection module comprises at least one of a monitoring sensor, a virus sensor, or a microorganism sensor, or a combination thereof. The gas detection device according to item 1 of the scope of the patent application, wherein the gas actuator of the at least one gas detection module is a MEMS gas pump. The gas detection device according to item 1 of the scope of the patent application, wherein the gas actuator of the at least one gas detection module is a gas pump, which includes: an air inlet plate having at least one air inlet hole, At least one busbar hole and a busbar chamber, wherein the at least one air inlet hole is used for introducing airflow, the at least one busbar hole corresponds to the at least one air inlet hole, and guides the airflow of the at least one air inlet hole to the busbar A cavity; a resonance plate having a hollow hole corresponding to the confluence cavity, and a movable portion surrounding the hollow hole; and a piezoelectric actuator corresponding to the resonance plate; wherein the resonance plate and There is a cavity space between the piezoelectric actuators, so that when the piezoelectric actuator is driven, the airflow is introduced through the at least one air inlet hole of the air inlet plate, and is collected through the at least one busbar hole. After reaching the confluence chamber, and then flowing through the hollow hole of the resonance plate, the piezoelectric actuator and the movable part of the resonance plate generate resonance transmission airflow. The gas detection device according to item 7 of the scope of patent application, 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 portion A frame, which is arranged around the outer side of the suspension board and has a set of matching surfaces; at least one connection portion is connected between the suspension board and the outer frame to provide elastic support for the suspension board; and a piezoelectric element, which Attached to the second surface of the suspension plate for applying a voltage to drive the suspension plate to bend and vibrate; wherein the at least one connection portion is formed between the suspension plate and the outer frame, and the suspension plate is The first surface and the matching surface of the outer frame are formed into a non-coplanar structure, and the first surface of the suspension plate and the resonance plate are maintained at a cavity distance. The gas detection device according to item 7 of the patent application scope, wherein the gas pump includes a conductive sheet and an insulating sheet, wherein the air inlet plate, the resonance sheet, the piezoelectric actuator, the conductive sheet and The insulating sheets are sequentially stacked. The gas detection device according to item 1 of the scope of patent application, wherein the at least one particle monitoring module includes a ventilation inlet, a ventilation outlet, a carrying partition, a particle monitoring base, and a laser emitter, the The ventilation inlet corresponds to the second air inlet of the body, the ventilation outlet corresponds to the air outlet of the body, and an internal space of the at least one particle monitoring module defines a first compartment and A second compartment, and the carrying partition has a communication port to communicate the first compartment and the second compartment, and the first compartment is in communication with the ventilation inlet, and the second compartment is in communication with the ventilation outlet It is connected, and the particle monitoring base is adjacent to the bearing partition and is accommodated in the first compartment. The particle monitoring base has a receiving groove, a monitoring channel, a beam channel and a receiving chamber. The receiving groove is directly Corresponds vertically to the ventilation inlet, and the particulate actuator is disposed on the receiving slot, the monitoring channel is disposed below the receiving slot, and the accommodation chamber is disposed on one side of the monitoring channel to receive and locate the mine The transmitter, and the beam channel is connected to Between the accommodating room and the monitoring channel, and directly across the monitoring channel, the laser beam emitted by the laser transmitter is guided to the monitoring channel, and the particle sensor is arranged below the monitoring channel, The particle actuator is urged to control the gas from the ventilation inlet into the receiving slot to be introduced into the monitoring channel, and is irradiated by a laser beam emitted by the laser emitter to project a light point in the gas to the particle The surface of the sensor detects the particle size and concentration of suspended particles contained in the gas, and is discharged from the ventilation outlet. The gas detection device according to item 10 of the scope of patent application, wherein the bearing partition of the at least one particle monitoring module is a circuit board. The gas detection device according to item 11 of the scope of patent application, wherein the particle sensor is electrically connected to the bearing partition and is located below the monitoring channel. The gas detection device according to item 1 of the scope of patent application, wherein the particle sensor of the at least one particle monitoring module is a PM2.5 sensor. The gas detection device according to item 10 of the scope of patent application, wherein the particulate actuator of the at least one particulate monitoring module is a micro-electromechanical system gas pump. The gas detection device according to item 10 of the scope of patent application, wherein the particle actuator of the at least one particle monitoring module is a gas pump, which includes: a gas jet hole sheet, including a plurality of connecting members, a A suspension sheet and a hollow hole, the suspension sheet can be flexibly vibrated, the plurality of connecting members are adjacent to the periphery of the suspension sheet, and the hollow hole is formed at the center of the suspension sheet, and the plurality of connecting members are arranged above the receiving groove. And provide elastic support for the suspension sheet, and an airflow cavity is formed between the air-jet hole sheet and the receiving slot, and at least one gap is formed between the plurality of connecting pieces and the suspension sheet; a cavity frame, which carries Stacked on the suspension sheet; a unitary moving body carrying a stack on the cavity frame to receive a voltage to generate reciprocating bending vibration; an insulating frame carrying a stack on the actuating body; and a conductive frame A load-bearing stack is disposed on the insulating frame; wherein a resonance chamber is formed between the actuating body, the cavity frame and the suspension sheet, and the air-jet orifice sheet is caused to resonate by driving the actuating body, The sheet of the suspension of the jet hole plate vibration displacement reciprocating manner, to cause the at least one gap through which the gas stream enters the chamber, and then discharged from the vent outlet, the flow of gases to achieve transmission. The gas detection device according to item 15 of the scope of patent application, wherein the actuating body comprises: a piezoelectric carrier plate, which is stacked on the cavity frame; and an adjustment resonance plate, which is stacked on the piezoelectric body. A carrier plate; and a piezoelectric plate carried on the adjustment resonance plate to receive voltage to drive the piezoelectric carrier plate and the adjustment resonance plate to generate reciprocating bending vibration. The gas detection device according to item 1 of the scope of patent application, wherein the power supply module receives and stores the stored electrical energy through wired transmission. The gas detection device according to item 1 of the scope of the patent application, wherein the power supply module transmits the output power by wire. The gas detection device according to item 1 of the scope of patent application, wherein the power supply module receives and stores the stored electrical energy by wireless transmission. The gas detection device according to item 1 of the scope of the patent application, wherein the power supply module transmits the output power wirelessly. The gas detection device according to item 1 of the scope of patent application, wherein the power supply module includes at least one rechargeable battery to store electrical energy and output electrical energy. The gas detection device according to item 1 of the patent application scope, wherein the control module includes a processor and a communication element, wherein the processor controls the communication element, the gas sensor of the at least one gas detection module, The gas actuator and the particle sensor of the at least one particle monitoring module are activated, and the detection result of the gas sensor and the particle sensor is converted into monitoring data, which is sent by the communication element to the external Device storage. The gas detection device according to item 1 of the patent application scope, wherein the external device is at least one of a cloud system, a portable device, and a computer system.