CN110658112A - Gas monitoring device - Google Patents

Abstract

A gas monitoring device, comprising: the filter is provided with two plug rings, and first filter screens are respectively arranged on the two plug rings; and an actuation sensor comprising: the body is provided with a monitoring chamber, an air inlet, a filtering port and an air outlet, wherein the filtering port is provided with a second filter screen which is made of the same material as the first filter screen of the filter; a first gas sensor; a second gas sensor; a first actuator and a second actuator for controlling the introduction of the gas; the first particle monitoring module and the second particle monitoring module respectively comprise a particle sensor; the gas is monitored by the first gas sensor, the particle sensor of the first particle monitoring module, the second gas sensor and the particle sensor of the second particle monitoring module, so that the gas information in the monitoring chamber is calculated, and the replacement time of the first filter screen and the second filter screen is judged.

Description

Gas monitoring device

Technical Field

The present disclosure relates to a gas monitoring device, and more particularly, to a gas monitoring device with a filter.

Background

In recent years, the problem of air pollution is getting worse, so that a lot of gases harmful to human bodies exist in the environment of daily life, and if the gases cannot be monitored immediately, the health of the human bodies is influenced.

Therefore, at present, a user plugs a filter with a filter screen into the nasal cavity, so that before the air enters the nasal cavity, the air is filtered by the filter screen of the filter and then is inhaled into the human body; however, although the user can utilize the filter screen of the filter to filter the gas entering the human body, the user cannot confirm when the filter screen of the filter needs to be replaced, and because the filter screen is arranged on the filter, the breathing effort of the user is weakened due to the filter screen, and the amount of the gas sucked is reduced, both of which are problems that need to be overcome at present.

Disclosure of Invention

The main objective of the present disclosure is to provide a gas monitoring device for providing real-time and accurate gas information to a user, wherein the user plugs a filter having a first filter screen into a nasal cavity, and the first filter screen of the filter and a second filter screen included in an actuation sensor of the gas monitoring device are made of the same material, so that the filter effect of the first filter screen can be obtained by determining the replacement time of the second filter screen, and the replacement time of the first filter screen and the second filter screen can be determined, thereby improving the reliability of the safe use of the filter.

One broad aspect of the present disclosure is a gas monitoring device, comprising: a filter having two plug rings, the two plug rings being respectively provided with a first filter screen; and at least an actuation sensor comprising: the body is provided with a monitoring chamber, at least one air inlet, at least one filtering port and at least one air outlet, and the filtering port is provided with a second filter screen which is made of the same material as the first filter screen of the filter; the first gas sensor is arranged in the monitoring cavity; the second gas sensor is arranged in the monitoring cavity; the first actuator is arranged in the monitoring chamber and used for controlling the gas introduction; a second actuator disposed in the monitoring chamber for controlling the introduction of the gas; the first particle monitoring module is arranged in the monitoring cavity, corresponds to the air inlet and comprises a particle sensor; the second particle monitoring module is arranged in the monitoring cavity, corresponds to the filtering port and comprises a particle sensor; wherein, the leading-in monitoring cavity of first actuator control external gas, see through first gas sensor and monitor gas, and particle sensor through first particle monitoring module contains the particle diameter and the concentration of suspended particle in the gaseous particle sensor monitoring gas, the leading-in and filter to the monitoring cavity through the second filter screen of second actuator control external gas by filtering the opening, the particle sensor monitoring through second gas sensor and particle monitoring module again, with calculate the interior gaseous content of filtration of monitoring cavity and the particle diameter and the concentration of suspended particle that contains, and then judge the opportunity that first filter screen and second filter screen changed.

Drawings

Fig. 1 is a schematic structural diagram of the filter of the present disclosure.

Fig. 2 is a schematic cross-sectional view of a first embodiment of the gas monitoring device of the present disclosure.

Fig. 3 is a schematic structural diagram of a first actuator and a second actuator according to a first embodiment of the disclosure.

Fig. 4A is a schematic cross-sectional view of a first actuator and a second actuator according to a first embodiment of the present disclosure.

Fig. 4B to 4C are operation schematic diagrams of the first actuator and the second actuator according to the first embodiment of the disclosure.

Fig. 5 is a schematic cross-sectional view of a second embodiment of the gas monitoring device of the present disclosure.

Fig. 6A is an exploded perspective view of a first actuator and a second actuator according to a second embodiment of the present disclosure from a top view.

Fig. 6B is an exploded perspective view of the first actuator and the second actuator according to the second embodiment of the present disclosure from a bottom perspective.

Fig. 7A is a schematic cross-sectional view of a first actuator and a second actuator according to a second embodiment of the disclosure.

Fig. 7B is a schematic cross-sectional view of a first actuator and a second actuator according to another embodiment of the disclosure.

Fig. 7C to 7E are operation schematic diagrams of a first actuator and a second actuator according to a second embodiment of the disclosure.

Description of the reference numerals

A: filter

A1: plug ring

A2: first filter screen

B. B': actuation sensor

1: body

11: monitoring chamber

11 a: the first chamber

11 b: second chamber

12: air inlet

13: filter the port

14: air outlet

15: second filter screen

2 a: first gas sensor

2 b: second gas sensor

3a, 3 a': first actuator

3b, 3 b': second actuator

31: air injection hole sheet

31': air inlet plate

31 a: connecting piece

31 a': air intake

31 b: suspension plate

31 b': bus bar groove

31 c: hollow hole

31 c': confluence chamber

32: cavity frame

32': resonance sheet

32 a': hollow hole

32 b': movable part

32 c': fixing part

33: actuating body

33': piezoelectric actuator

33 a: piezoelectric carrier plate

33 a': suspension plate

33 b: tuning the resonator plate

33 b': outer frame

33 c: piezoelectric plate

33 c': support frame

33 d': piezoelectric element

33 e': gap

33 f': convex part

34: insulating frame

34': first insulating sheet

35: conductive frame

35': conductive sheet

351': conductive pin

352': electrode for electrochemical cell

36: resonance chamber

36': second insulating sheet

37: airflow chamber

37': chamber space

4 a: first particle monitoring module

4 b: second particle monitoring module

41: particle sensor

42: particle monitoring base

421: bearing groove

422: monitoring channel

423: light beam channel

424: accommodation chamber

43: laser transmitter

5: bearing partition plate

51: communication port

52: connector with a locking member

Detailed Description

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

In a first embodiment of a gas monitoring device, which is shown in fig. 1 to 3, the gas monitoring device includes at least one filter a and at least one actuation sensor B. The number of at least one filter a and at least one actuation sensor B in the following embodiments is given by way of example and not of limitation. The filter a and the actuation sensor B may be a combination of a plurality of them. The filter a includes at least two plug rings a1, at least one first screen a2 is disposed on each plug ring a1, and the number of the at least two plug rings a1 and the at least one first screen a2 in the following embodiments is used as an example and not limited thereto. The ring a1 and the first screen a2 may be a combination of a plurality of them.

Referring to fig. 2, in a first embodiment of the present invention, an actuation sensor B includes at least one body 1, at least one first gas sensor 2a, at least one second gas sensor 2B, at least one first actuator 3a, at least one second actuator 3B, at least one first particle monitoring module 4a, and at least one second particle monitoring module 4B. For avoiding redundancy, the numbers of the at least one main body 1, the at least one first gas sensor 2a, the at least one second gas sensor 2b, the at least one first actuator 3a, the at least one second actuator 3b, the at least one first particle monitoring module 4a and the at least one second particle monitoring module 4b are all used as an example, but not limited thereto. The body 1, the first gas sensor 2a, the second gas sensor 2b, the first actuator 3a, the second actuator 3b, the first particle monitoring module 4a, and the second particle monitoring module 4b may be a combination of a plurality of them.

In the first embodiment, the body 1 has at least one monitoring chamber 11, at least one air inlet 12, at least one filtering port 13, at least one air outlet 14 and at least one second filter 15. For avoiding redundancy, the numbers of the at least one monitoring chamber 11, the at least one air inlet 12, the at least one filtering port 13, the at least one air outlet 14 and the at least one second filter 15 are all used as an example, but not limited thereto. The monitoring chamber 11, the air inlet 12, the filter port 13, the air outlet 14 and the second filter 15 may be a combination of a plurality of them. The monitoring chamber 11 includes a first chamber 11a and a second chamber 11 b. The first chamber 11a is communicated with the gas inlet 12, and the first gas sensor 2a, the first actuator 3a and the first particle monitoring module 4a are all disposed in the first chamber 11 a. The second chamber 11b is in communication with the filter port 13, and the second gas sensor 2b, the second actuator 3b, and the second particle monitoring module 4b are disposed within the second chamber 11 b.

Referring to fig. 2, the second screen 15 is disposed in the filtering opening 13, and the second screen 15 on the filtering opening 13 and the first screen a2 of the filter a are made of the same material. In the first embodiment, the first filter a2 and the second filter 15 are made of a foaming material, a non-woven fabric, or an activated carbon filter and high efficiency filter (HEPA), but not limited thereto.

Referring to fig. 2, the gas monitoring device further includes a supporting partition plate 5, and the supporting partition plate 5 is disposed on the body 1 and has at least one communication hole 51. In the first embodiment, the supporting partition plate 5 has two communication ports 51, which are respectively disposed corresponding to the first particle monitoring module 4a and the second particle monitoring module 4 b.

Referring to fig. 2, in the first embodiment of the present disclosure, the first particle monitoring module 4a and the second particle monitoring module 4b are particle monitoring modules having the same structure, and for avoiding redundancy, the first particle monitoring module 4a is used for implementation. The first particle monitoring module 4a includes a particle sensor 41, a particle monitoring base 42, and a laser emitter 43. The particle monitoring pedestal 42 is disposed on the supporting partition 5 and has a supporting groove 421, a monitoring channel 422, a light beam channel 423 and a containing chamber 424. The receiving groove 421 is provided directly corresponding to the intake port 12, and the monitoring passage 422 communicates with the receiving groove 421. The particle sensor 41 is disposed at one end of the monitoring channel 422 far from the receiving groove 421, such that the receiving groove 421 and the particle sensor 41 are respectively disposed at two opposite ends of the monitoring channel 422. The light beam passage 423 communicates between the accommodation chamber 424 and the monitoring passage 422. In the first embodiment of the present disclosure, one end of the beam channel 423 is perpendicularly intersected and communicated with the monitoring channel 422, and the other end is communicated with the accommodating chamber 424, such that the accommodating chamber 424 and the monitoring channel 422 are respectively communicated with two ends of the beam channel 423. The laser emitter 43 is disposed in the accommodating chamber 424 and electrically connected to the bearing partition 5. The laser emitter 43 emits a laser beam through the beam path 423 and irradiates the monitoring path 422, when the aerosol contained in the gas in the monitoring path 422 is irradiated by the laser beam, a plurality of light spots are generated, the light spots are projected on the surface of the particle sensor 41, and the particle sensor 41 monitors the particle size and concentration of the aerosol contained in the gas according to the light spots. After the monitoring is finished, the gas is discharged out of the main body 1 through the communication port 51 and the gas outlet 14 of the main body 1 in this order. In the first embodiment of the present disclosure, the particle sensors 41 of the first particle monitoring module 4a and the second particle monitoring module 4b are PM2.5 sensors, but not limited thereto.

Referring to fig. 2, in the first embodiment of the present invention, the first actuator 3a and the second actuator 3b are respectively configured on the receiving slots 421 of the first particle monitoring module 4a and the second particle monitoring module 4 b. By activating the first actuator 3a and the second actuator 3b, the gas outside the main body 1 is introduced into the first chamber 11a and the second chamber 11b through the gas inlet 12 and the filtering port 13, and is introduced into the monitoring channels 422 of the first particle monitoring module 4a and the second particle monitoring module 4b, respectively, so as to calculate the particle size and concentration of the suspended particles contained in the gas inside the first chamber 11a and the second chamber 11b, respectively. In addition, the first actuator 3a and the second actuator 3b can respectively eject gas to the surfaces of the particle sensors 41 in the first particle monitoring module 4a and the second particle monitoring module 4b at high speed to respectively perform cleaning operations on the surfaces of the particle sensors 41 to remove aerosols attached to the surfaces of the particle sensors 41, thereby maintaining the surfaces of the particle sensors 41 clean and maintaining the monitoring accuracy.

In the first embodiment of the present disclosure, the first actuator 3a and the second actuator 3b are actuators having the same structure, and for avoiding redundancy, only the structure and the operation manner of the first actuator 3a will be described below, and the structure and the operation manner of the second actuator 3b will not be described repeatedly. Referring to fig. 3 to 4C, the first actuator 3a includes a nozzle plate 31, a chamber frame 32, an actuating body 33, an insulating frame 34 and a conductive frame 35 stacked in sequence. The air hole plate 31 includes a plurality of connecting members 31a, a suspension plate 31b, a hollow hole 31c and at least one gap. The floating piece 31b can be bent and vibrated, and the plurality of connecting pieces 31a are adjacent to the periphery of the floating piece 31 b. In the first embodiment, the number of the connecting members 31a is 4, and the connecting members are respectively adjacent to 4 corners of the floating plate 31b, but not limited thereto. The air injection hole piece 31 can be fixedly received in the receiving groove 421 by fixing the plurality of connection members 31a to the receiving groove 421. The hollow hole 31c is formed at the center of the floating plate 31b, and the gap is an air flow hole between each connecting piece 31a and the floating plate 31 b. The cavity frame 32 is superposed on the floating plate 31b, and the actuating body 33 is superposed on the cavity frame 32. The actuating body 33 includes a piezoelectric carrier plate 33a, an adjusting resonator plate 33b and a piezoelectric plate 33 c. The piezoelectric carrier plate 33a is stacked on the cavity frame 32, the tuning resonator plate 33b is stacked on the piezoelectric carrier plate 33a, and the piezoelectric plate 33c is stacked on the tuning resonator plate 33 b. The piezoelectric plate 33c is used to deform after applying a driving voltage to drive the piezoelectric carrier plate 33a and the tuning resonator plate 33b to perform a reciprocating bending vibration. The insulating frame 34 is superposed on the piezoelectric carrier plate 33a of the actuating body 33, and the conductive frame 35 is superposed on the insulating frame 34. Wherein, a resonance chamber 36 is formed between the actuating body 33, the cavity frame 32 and the suspension plate 31b, and an airflow chamber 37 is formed between the actuating body 33 and the bottom surface of the receiving groove 421. In addition, in the first embodiment of the present invention, the thickness of the tuning resonator plate 33b is larger than that of the piezoelectric carrier plate 33a, but not limited thereto.

Referring to fig. 2 and 4B, when a driving voltage is applied to the piezoelectric plate 33c of the actuating body 33, the piezoelectric plate 33c begins to deform due to the piezoelectric effect and synchronously drives the tuning resonance plate 33B and the piezoelectric carrier plate 33 a. At this time, the air injection hole piece 31 is driven by the Helmholtz resonance (Helmholtz resonance) principle. When the actuating body 33 is displaced away from the bottom surface of the receiving groove 421, the volume of the airflow chamber 37 increases, and the gas in the monitoring chamber 11 starts to enter the airflow chamber 37 through the gap between the connecting pieces 31a of the ejection hole piece 31, so that a negative pressure is formed in the monitoring chamber 11, and the gas is sucked into the monitoring chamber 11 through the gas inlet 12. Referring to fig. 2 and 4C again, when the gas continuously enters the monitoring chamber 11, the actuating body 33 is driven by the voltage to move toward the bottom surface of the receiving slot 421, the volume of the airflow chamber 37 is compressed to push the gas inside the airflow chamber 37 into the monitoring channel 422, and at the same time, the gas in the resonant chamber 36 is also ejected from the hollow hole 31C, the gas inside the monitoring chamber 11 is continuously sucked through the actuating body 33, so that the gas outside the body 1 can continuously enter the monitoring chamber 11 through the gas inlet 12 and flow into the monitoring channel 422, and the gas to be monitored is provided to the first particle monitoring module 4a and the second particle monitoring module 4b to monitor the particle size and concentration of the suspended particles contained in the gas inside the first chamber 11a and the second chamber 11b, respectively. In addition, the first gas sensor 2a and the second gas sensor 2b are used for monitoring the gas information in the first chamber 11a and the second chamber 11 b. In the first embodiment of the present disclosure, the first gas sensor 2a and the second gas sensor 2b are respectively a volatile organic compound sensor, but not limited thereto.

In the first embodiment of the present application, the gas monitoring apparatus further includes a microprocessor (not shown) for performing operation processing and outputting the data monitored by the first gas sensor 2a, the second gas sensor 2b and the particle sensors 41 of the first particle monitoring module 4a and the second particle monitoring module 4 b. The load-bearing partition 5 is a driving circuit board having a connector 52, and the connector 52 is electrically connected to the microprocessor for controlling the output and input of signals. The particle sensors 41, the first actuator 3a, the second actuator 3b, the first gas sensor 2a and the second gas sensor 2b of the first particle monitoring module 4a and the second particle monitoring module 4b are all electrically connected to the load-bearing partition 5.

When a user needs to monitor information of inhaled gas, the gas monitoring device enables the gas to enter through the gas inlet 12, and at this time, the first gas sensor 2a located in the monitoring chamber 11 and the particle sensor 41 of the first particle monitoring module 4a start to monitor the gas in the monitoring chamber 11, so as to calculate the gas information and the particle size and concentration of suspended particles contained in the gas information.

In addition, when the user needs to check the filtering effect of the filter a and the timing of replacing the first screen a2, the user can know the state of the second screen 15 and the timing of replacing the second screen 15. When the timing of replacing the second filter 15 needs to be confirmed, the second actuator 3b is activated, the gas outside the body 1 will enter from the filter port 13, at this time, the gas entering the second chamber 11b will also be monitored by the second gas sensor 2b located in the second chamber 11b and the particle sensor 41 of the second particle monitoring module 4b, and the gas information and the particle size and concentration of the aerosol contained therein are calculated, and then the microprocessor compares the gas information monitored by the second gas sensor 2b and the particle size and concentration of the aerosol contained in the gas monitored by the particle sensor 41 of the second particle monitoring module 4 b. When the result of the comparison operation reaches a predetermined value, the replacement time of the second filter 15 is determined. Since the second screen 15 of the filtering port 13 and the first screen a2 of the filter a are made of the same material, the user can determine whether the second screen 15 of the gas monitoring device and the first screen a2 of the filter a need to be replaced, so that the filter a disposed in the nasal cavity can be safely and reliably used.

Referring to fig. 5, the structure and operation of the second embodiment of the gas monitoring device of the present invention are substantially the same as the first embodiment, except for the structure and operation of the first actuator 3a 'and the second actuator 3 b'. The first actuator 3a 'and the second actuator 3b' are actuators having the same structure, and for avoiding redundancy, a description will be given below of the structure and the operation of the first actuator 3a 'according to the second embodiment of the present disclosure, and a description of the structure and the operation of the second actuator 3b' will not be repeated.

Referring to fig. 6A, fig. 6B and fig. 7A, a first actuator 3a ' of the second embodiment is a gas pump, and includes a gas inlet plate 31', a resonator plate 32', a piezoelectric actuator 33', a first insulating plate 34', a conductive plate 35' and a second insulating plate 36 '. The air inlet plate 31', the resonance plate 32', the piezoelectric actuator 33', the first insulating plate 34', the conductive plate 35', and the second insulating plate 36' are sequentially stacked and combined.

In the second embodiment, the air inlet plate 31 'has at least one air inlet hole 31a', at least one bus bar slot 31b 'and a bus chamber 31 c'. The bus bar groove 31b 'is provided corresponding to the intake hole 31 a'. The gas inlet holes 31a 'are supplied with the introduced gas, and the bus groove 31b' guides the gas introduced from the gas inlet holes 31a 'to flow to the bus chamber 31 c'. The resonator plate 32 'has a hollow hole 32a', a movable portion 32b ', and a fixed portion 32 c'. The hollow hole 32a ' is provided corresponding to the confluence chamber 31c ' of the intake plate 31 '. The movable portion 32b 'is disposed around the hollow hole 32a', and the fixed portion 32c 'is disposed at the periphery of the movable portion 32 b'. The resonator plate 32' and the piezoelectric actuator 33' are positioned in correspondence and together form a chamber space 37' therebetween. Therefore, when the piezoelectric actuator 33' is driven, the gas is introduced through the gas inlet hole 31a ' of the gas inlet plate 31' and is collected into the collecting chamber 31c ' through the collecting groove 31b '. Then, the gas passes through the hollow hole 32a ' of the resonance plate 32', so that the piezoelectric actuator 33' resonates with the movable portion 32b ' of the resonance plate 32' to transmit the gas.

Referring to fig. 6A, fig. 6B and fig. 7A, the piezoelectric actuator 33' includes a suspension plate 33a ', a frame 33B ', at least one support 33c ' and a piezoelectric element 33d '. In the second embodiment, the suspension plate 33a' has a square shape and can be bent and vibrated, but not limited thereto. The suspension plate 33a 'has a convex portion 33 f'. In the second embodiment, the suspension plate 33a 'is designed in a square shape, because the structure of the square suspension plate 33a' has the advantage of power saving compared to the circular shape. The power consumption of the capacitive load operating at the resonant frequency increases as the resonant frequency increases, and the power consumption is lower because the resonant frequency of the square suspension plate 33a' is lower than that of the circular suspension plate. However, in other embodiments, the shape of the suspension plate 33a' may vary according to actual requirements. The outer frame 33b 'is disposed around the outer side of the suspension plate 33 a'. The bracket 33c 'is connected between the suspension plate 33a' and the outer frame 33b 'to provide a supporting force for elastically supporting the suspension plate 33 a'. The piezoelectric element 33d 'has a side length smaller than or equal to a side length of the suspension plate 33 a'. And the piezoelectric element 33d ' is attached to a surface of the suspension plate 33a ' for being applied with a driving voltage to drive the suspension plate 33a ' to vibrate in bending. At least one gap 33e 'is formed between the suspension plate 33a', the outer frame 33b 'and the support 33c' for the gas to pass through. The convex portion 33f 'is provided to protrude on the other surface of the suspension plate 33 a'. In the second embodiment, the floating plate 33a 'and the protrusion 33f' are integrally formed by an etching process, but not limited thereto.

Referring to fig. 7A, in the second embodiment, the cavity space 37 'may be filled with a material, such as but not limited to a conductive adhesive, by using a gap generated between the resonator plate 32' and the outer frame 33b 'of the piezoelectric actuator 33', so that a certain depth may be maintained between the resonator plate 32 'and the suspension plate 33a', thereby guiding the gas to flow more rapidly. In addition, since the suspension plate 33a 'is kept at a proper distance from the resonator plate 32', contact interference therebetween is reduced, and noise generation can be reduced. In other embodiments, the thickness of the conductive paste filled in the gap between the resonator plate 32' and the outer frame 33b ' of the piezoelectric actuator 33' can be reduced by increasing the height of the outer frame 33b ' of the piezoelectric actuator 33 '. Thus, under the condition that the suspension plate 33a ' and the resonator plate 32' can still keep a proper distance, the overall assembly of the first actuator 3a ' and the second actuator 3b ' is not affected by the influence of the hot-pressing temperature and the cooling temperature on the filling thickness of the conductive adhesive, and the influence of the conductive adhesive on the actual size of the cavity space 37' after the assembly due to the factors of thermal expansion and cold contraction can be avoided.

Referring to fig. 7B, in another embodiment, the suspension plate 33a 'may be formed by stamping, such that the suspension plate 33a' extends outward by a distance, and the outward extending distance may be adjusted by a bracket 33c 'formed between the suspension plate 33a' and the outer frame 33B ', such that the surface of the protrusion 33f' on the suspension plate 33a 'and the surface of the outer frame 33B' are both non-coplanar. The assembly surface of the outer frame 33b' is coated with a small amount of filling material, such as: the conductive adhesive is used for adhering the piezoelectric actuator 33 'to the fixing part 32c' of the resonator 32 'in a hot pressing manner, so that the piezoelectric actuator 33' can be assembled and combined with the resonator 32', the structural improvement of forming a cavity space 37' by stamping the suspension plate 33a 'of the piezoelectric actuator 33' is directly realized, and the required cavity space 37 'can be completed by adjusting the stamping forming distance of the suspension plate 33a' of the piezoelectric actuator 33', thereby effectively simplifying the structural design for adjusting the cavity space 37', simplifying the manufacturing process, shortening the manufacturing process time and the like.

Referring back to fig. 6A and 6B, in the second embodiment, the first insulating sheet 34', the conductive sheet 35' and the second insulating sheet 36' are frame-shaped thin sheets, but not limited thereto. The air inlet plate 31', the resonator plate 32', the piezoelectric actuator 33', the first insulating plate 34', the conducting plate 35 'and the second insulating plate 36' can be made by micro-electromechanical surface micromachining process to reduce the volume of the first actuator 3a 'and the second actuator 3b' to form a mems actuator.

Next, referring to fig. 7C, in the operation process of the piezoelectric actuator 33', the piezoelectric element 33d ' of the piezoelectric actuator 33' is deformed after being applied with the driving voltage, so as to drive the suspension plate 33a ' to displace in the direction away from the air intake plate 31', and at this time, the volume of the chamber space 37' is increased, so that a negative pressure is formed in the chamber space 37', and the air in the confluence chamber 31C ' is drawn into the chamber space 37 '. At the same time, the resonance plate 32' resonates and is displaced away from the inlet plate 31', which in turn increases the volume of the joining chamber 31c '. And the gas in the confluence chamber 31c 'is also in a negative pressure state due to the gas in the confluence chamber 31c' entering the chamber space 37', and the gas is sucked into the confluence chamber 31c' through the gas inlet 31a 'and the bus bar groove 31 b'.

Then, as shown in fig. 7D, the piezoelectric element 33D ' drives the suspension plate 33a ' to displace toward the air intake plate 31', and compresses the chamber space 37', and likewise, the resonance plate 32' is actuated by the suspension plate 33a ' to generate resonance and displace toward the air intake plate 31', so as to force the gas in the chamber space 37' to be synchronously pushed and further transmitted through the gap 33e ', and thus, the effect of transmitting the gas is achieved.

Finally, as shown in fig. 7E, when the suspension plate 33a ' is driven to return to the state of not being driven by the piezoelectric element 33d ', the resonator plate 32' is also driven to displace in the direction away from the air inlet plate 31', and at this time, the resonator plate 32' pushes the gas in the compression chamber space 37' to the gap 33E ' to move, and the volume in the confluence chamber 31c ' is increased, so that the gas can continuously pass through the air inlet hole 31a ' and the confluence groove 31b ' to be converged in the confluence chamber 31c '. By continuously repeating the operation steps of the first actuator 3a 'and the second actuator 3b' shown in fig. 7C to 7E, the first actuator 3a 'and the second actuator 3b' can continuously make the gas flow at a high speed, so as to achieve the operation of the first actuator 3a 'and the second actuator 3b' for delivering and outputting the gas.

Referring to fig. 6A and 6B, a conductive pin 351 'protrudes from the outer edge of the conductive sheet 35', and a curved electrode 352 'protrudes from the inner edge, the electrode 352' is electrically connected to the piezoelectric element 33d 'of the piezoelectric actuator 33'. The conductive pin 351 'of the conductive plate 35' is connected to an external current, so as to drive the piezoelectric element 33d 'of the piezoelectric actuator 33'. In addition, the first insulating sheet 34 'and the second insulating sheet 36' are provided to prevent short circuit.

The gas monitoring device provided by the scheme can provide real-time and accurate gas information for a user, can monitor the air quality of gas passing through the second filter screen, and the user configures the filter with the first filter screen in the nasal cavity.

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

Claims (20)

1. A gas monitoring device, comprising:

a filter having two plug rings, wherein the two plug rings are respectively provided with a first filter screen; and

at least one actuation sensor, the actuation sensor comprising:

the body is provided with a monitoring chamber, at least one air inlet, at least one filtering port and at least one air outlet, and the filtering port is provided with a second filter screen which is made of the same material as the first filter screen of the filter;

a first gas sensor disposed in the monitoring chamber;

the second gas sensor is arranged in the monitoring cavity;

a first actuator disposed in the monitoring chamber for controlling the introduction of gas;

a second actuator disposed in the monitoring chamber for controlling the introduction of gas;

the first particle monitoring module is arranged in the monitoring cavity, corresponds to the air inlet and comprises a particle sensor; and

the second particle monitoring module is arranged in the monitoring cavity, corresponds to the filtering port and comprises a particle sensor;

wherein, this first actuator control external gas is leading-in this monitoring cavity, see through this first gas sensor monitoring gas to and see through the particle diameter and the concentration of the suspended particle that contains in this particle sensor monitoring gas of this first particle monitoring module, in this second actuator control external gas is leading-in by this filtration through-hole and filters to this monitoring cavity through this second filter screen, see through this particle sensor monitoring of this second gas sensor and this second particle monitoring module again, in order to calculate the content of the gaseous content of filtration in this monitoring cavity and the particle diameter and the concentration of the suspended particle that contains, and then judge the opportunity of this first filter screen and this second filter screen change.

2. The gas monitoring device of claim 1, further comprising a supporting partition disposed in the body and having at least one communication port, wherein the particle sensors of the first particle monitoring module and the second particle monitoring module are supported on the supporting partition and electrically connected to the supporting partition, and the first gas sensor and the second gas sensor are also electrically connected to the supporting partition.

3. The gas monitoring device of claim 2, wherein the carrier plate is a driver circuit board and has a connector electrically connected to a microprocessor for controlling signal input and output.

4. The gas monitoring device of claim 2, wherein the first particle monitoring module and the second particle monitoring module each comprise:

a particle monitoring base, which is arranged on the bearing clapboard and is provided with a bearing groove, a monitoring channel, a light beam channel and a containing chamber, wherein the bearing groove is arranged corresponding to the air inlet, the monitoring channel is communicated with the bearing groove, the particle sensor is arranged at one end of the monitoring channel far away from the bearing groove, and the light beam channel is communicated between the containing chamber and the monitoring channel; and

the laser emitter is arranged in the accommodating chamber and electrically connected with the bearing partition plate, the laser emitter emits a laser beam to pass through the beam channel and irradiate the monitoring channel, so that the gas passing through the monitoring channel is irradiated by the laser beam to emit a light spot to the surface of the particle sensor, the particle size and the concentration of suspended particles contained in the gas are monitored, and the gas passing through the monitoring channel is sequentially discharged out of the body through the communication port and the gas outlet.

5. The gas monitoring device according to claim 4, wherein the first actuator is disposed on the receiving slot of the first particle monitoring module and is disposed corresponding to the particle sensor, the first actuator directing gas into the monitoring channel to be monitored by the particle sensor of the first particle monitoring module, and the second actuator is disposed on the receiving slot of the second particle monitoring module directing gas into the monitoring channel to be monitored by the particle sensor of the second particle monitoring module.

6. The gas monitoring device as claimed in claim 5, wherein the first actuator and the second actuator are capable of spraying gas onto the surface of the particle sensor at high speed to clean the surface of the particle sensor and to spray out the aerosol adhering to the surface of the particle sensor, thereby maintaining the monitoring accuracy of the particle sensor.

7. The gas monitoring device of claim 1, wherein the particulate sensor of the first particulate monitoring module is a PM2.5 sensor and the particulate sensor of the second particulate monitoring module is a PM2.5 sensor.

8. The gas monitoring device of claim 5, wherein the first actuator and the second actuator each comprise:

the air injection hole piece comprises a plurality of connecting pieces, a suspension piece and a hollow hole, the suspension piece can be bent and vibrated, the connecting pieces are adjacent to the periphery of the suspension piece, the hollow hole is formed in the central position of the suspension piece, the air injection hole piece is arranged in the bearing groove through the connecting pieces, the suspension piece is elastically supported by the connecting pieces, an air flow chamber is formed between the air injection hole piece and the bearing groove, and at least one gap is formed between the connecting pieces and the suspension piece;

a cavity frame, which is superposed on the suspension plate;

an actuating body superposed on the cavity frame for receiving the driving voltage to generate reciprocating bending vibration;

an insulating frame superposed on the actuating body; and

a conductive frame, which is stacked on the insulating frame;

wherein, a resonance chamber is formed among the actuating body, the cavity frame and the suspension sheet, the actuating body is driven to drive the air injection hole sheet to generate resonance, so that the suspension sheet of the air injection hole sheet generates reciprocating vibration displacement, the gas enters the airflow chamber through the gap and is discharged from the monitoring channel, and the transmission flow of the gas is realized.

9. The gas monitoring device of claim 8, wherein the actuator comprises:

a piezoelectric carrier plate, which is superposed on the cavity frame;

the adjusting resonance plate is superposed on the piezoelectric carrier plate; and

and the piezoelectric plate is superposed on the adjusting resonance plate and used for receiving the driving voltage to drive the piezoelectric support plate and the adjusting resonance plate to generate reciprocating bending vibration.

10. The gas monitoring device of claim 9, wherein the tuned resonator plate has a thickness greater than a thickness of the piezoelectric carrier plate.

11. The gas monitoring device of claim 5, wherein the first actuator and the second actuator are a gas pump comprising:

the air inlet plate is provided with at least one air inlet hole, at least one bus bar groove and a bus chamber, the air inlet hole is used for introducing air, and the bus bar groove corresponds to the position of the air inlet hole and is used for guiding the air introduced from the air inlet hole to the bus chamber;

a resonance sheet having a hollow hole provided corresponding to the confluence chamber and a movable portion provided around the hollow hole; and

a piezoelectric actuator, which is arranged corresponding to the resonance sheet in position, and a cavity space is formed between the resonance sheet and the piezoelectric actuator, so that when the piezoelectric actuator is driven, gas is led in from the air inlet hole of the air inlet plate, is collected to the collecting cavity through the collecting groove, and then passes through the hollow hole of the resonance sheet, so that the piezoelectric actuator and the movable part of the resonance sheet generate resonance to transmit the gas;

wherein, the air inlet plate, the resonance sheet and the piezoelectric actuator are sequentially stacked.

12. The gas monitoring device of claim 11, wherein the piezoelectric actuator comprises:

a suspension plate having a square shape and capable of bending and vibrating;

the outer frame is arranged around the outer side of the suspension plate;

at least one bracket connected between the suspension plate and the outer frame to provide elastic support; and

the piezoelectric element is attached to one surface of the suspension plate and is used for being applied with voltage to drive the suspension plate to vibrate in a bending mode.

13. The gas monitoring device according to claim 11, wherein the first actuator and the second actuator further comprise a first insulating plate, a conductive plate and a second insulating plate, and the gas inlet plate, the resonator plate, the piezoelectric actuator, the first insulating plate, the conductive plate and the second insulating plate are stacked in sequence.

14. The gas monitoring device of claim 1, wherein the first gas sensor is a voc sensor and the second gas sensor is a voc sensor.

15. The gas monitoring device of claim 1, wherein the first filter is a foam material.

16. The gas monitoring device of claim 1, wherein the first filter is a non-woven material.

17. The gas monitoring device of claim 1, wherein the first filter comprises at least one of an activated carbon filter and high efficiency filter (HEPA).

18. The gas monitoring apparatus of claim 1, wherein the monitoring chamber comprises:

the first cavity is communicated with the air inlet, and the first gas sensor, the first actuator and the first particle monitoring module are arranged in the first cavity; and

a second chamber in communication with the filter port, the second gas sensor, the second actuator, and the second particle monitoring module being disposed within the second chamber.

19. The gas monitoring device of claim 1, further comprising a microprocessor, wherein the microprocessor outputs data monitored by the particle sensors of the first gas sensor, the second gas sensor, the first particle monitoring module, and the second particle monitoring module by performing an operation, compares the gas information monitored by the second gas sensor with the particle size and concentration of the aerosol particles contained in the gas monitored by the particle sensor of the second particle monitoring module, and determines the replacement time of the first filter and the second filter when the comparison result reaches a predetermined value.

20. A gas monitoring device, comprising:

the filter is provided with at least two plug rings, and the two plug rings are respectively provided with at least one first filter screen;

at least one actuation sensor, the actuation sensor comprising:

the body is provided with at least one monitoring chamber, at least one air inlet, at least one filtering port and at least one air outlet, and the filtering port is provided with at least one second filter screen which is made of the same material as the first filter screen of the filter;

at least one first gas sensor arranged in the monitoring chamber;

at least one second gas sensor arranged in the monitoring chamber;

at least one first actuator disposed in the monitoring chamber for controlling gas introduction;

at least one second actuator disposed in the monitoring chamber for controlling the introduction of gas;

at least one first particle monitoring module, which is arranged in the monitoring chamber, corresponds to the air inlet and comprises at least one particle sensor; and

at least one second particle monitoring module, which is arranged in the monitoring chamber, corresponds to the filtering port and comprises at least one particle sensor;

wherein, this first actuator control external gas is leading-in this monitoring cavity, see through this first gas sensor monitoring gas to and see through the particle diameter and the concentration of the suspended particle that contains in this particle sensor monitoring gas of this first particle monitoring module, this second actuator control external gas is leading-in by this filtration through-hole and filters to this monitoring cavity through this second filter screen in, see through this particle sensor monitoring of this second gas sensor and this second particle monitoring module again, in order to calculate the content of the gaseous content of filtering in this monitoring cavity and the particle diameter and the concentration of the suspended particle that contains, and then judge the opportunity of this first filter screen and this second filter screen change.

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