TWI708932B - Gas measuring device - Google Patents

Abstract

A gas measuring device comprises a filtering component and an actuating sensor. The filtering component comprises two plug rings, and the plug rings respectively includes a first filter. The actuating sensor comprises a main body, at least one first gas sensor, at least one actuator and at least one particle sensing module. The main body comprises a detecting chamber, at least one gas inlet, at least one filter orifice and at least one gas outlet. A valve is disposed at the air inlet for regulating external gas to be introduced into the detecting chamber. A second filter is disposed on the filter orifice and has the same material with the first filter. The gas sensor is disposed within the detecting chamber. The actuator is disposed within the detecting chamber and is used to introduce the gas into the gas measuring device. The particle sensing module is disposed within the detecting chamber and includes a particle sensor. Whether to change the first filter and the second filter is decided by adjusting the valve to be opened or closed, and then comparing the gas information of the gas within the detection chamber.

Description

Gas monitoring device

This case is about a gas monitoring device, especially a gas monitoring device that can be used with a filter.

In recent years, the problem of air pollution in our country and neighboring areas has become more serious, resulting in many harmful gases in the environment of daily life. If it cannot be monitored immediately, it will have an impact on human health.

Therefore, at present, some users insert a filter with a filter into the nasal cavity, so that before the gas enters the nasal cavity, the gas will be filtered by the filter of the filter before being inhaled into the body; however, the user can Use the filter of the filter to filter the gas that enters the human body, but it is impossible to confirm when the filter of the filter needs to be replaced, and because the filter is equipped with a filter, the user's breathing force will be weakened by the filter, reducing the inhalation of gas Both of them are problems that urgently need to be overcome.

The main purpose of this case is to provide a gas monitoring device to monitor the air quality after the gas has passed through the filter, providing users with real-time and accurate gas information, and also allowing users to insert a filter with a filter into the nasal cavity When the time, you can know the filtering effect of the filter, so that the user can judge the time to replace the filter, and improve the reliability of safe use.

A broad implementation aspect of this case is a gas monitoring device, including a filter with two plug rings, each of which has a first filter screen; and at least an actuation sensor, the actuation sensor includes: a body, at least A gas sensor, at least an actuator, and at least one particle monitoring module. The main body has a monitoring chamber, and the monitoring chamber has at least one air inlet, at least one filtering port and at least one air outlet. A valve is provided at the air inlet to control the introduction of external air into the monitoring chamber. A second filter screen made of the same material as the first filter screen is provided in the filter port. The gas sensor is arranged in the monitoring chamber. The actuator is arranged in the monitoring chamber to control the gas introduction. The particle monitoring module is arranged in the monitoring chamber and includes a particle sensor. Open the valve first, and start the actuator at the same time, causing the external air to be introduced into the monitoring chamber from the air inlet, monitoring the gas through the gas sensor, and monitoring the particle size and concentration of suspended particles in the gas through the particle sensor of the particle monitoring module . Then close the valve to introduce the external air into the monitoring chamber through the filter port, and filter the external air through the second filter. The filtered external air is monitored through the gas sensor and the particle sensor, so as to calculate the filtering gas in the monitoring chamber. The content and the particle size and concentration of the suspended particles are used to determine the timing of replacement of the first filter and the second filter.

A: filter

A1: Plug ring

A2: The first filter

B: Actuation sensor

1: body

11: Monitoring chamber

12: Air inlet

13: filter port

14: air outlet

15: Valve

151: Holder

152: Seal

153: Displacement piece

151a, 152a, 153a: through holes

16: Second filter

2: gas sensor

3.3': Actuator

31: Air jet hole sheet

31': intake plate

31a: connecting piece

31a': air inlet

31b: Suspended film

31b': Busbar groove

31c: Hollow hole

31c': Confluence chamber

32: cavity frame

32': resonance film

32a': hollow hole

32b': movable part

32c': fixed part

33: Actuator

33': Piezo actuator

33a: Piezo Carrier

33a': hoverboard

33b: Adjust the resonance plate

33b': Outer frame

33c: Piezo Plate

33c': bracket

33d': Piezoelectric element

33e': gap

33f': convex

34: insulated frame

34': The first insulating sheet

35: conductive frame

35': conductive sheet

351': conductive pin

352': Electrode

36: resonance chamber

36': second insulating sheet

37: Airflow chamber

37': Chamber space

4: Particle monitoring module

41: Carrying partition

411: Connecting port

412: Connector

42: Particle Monitoring Base

421: Socket

422: monitoring channel

423: beam channel

424: storage room

43: Laser transmitter

44: Particle Sensor

Figure 1 is a schematic diagram of the filter structure of the first embodiment of the gas monitoring device of the present invention.

Figure 2 is a schematic cross-sectional view of the actuation sensor of the first embodiment of the gas monitoring device of the present invention.

Figure 3 is a perspective exploded view of the actuator of the first embodiment of the present invention.

Figure 4A is a schematic cross-sectional view of the actuator of the first embodiment of the present invention.

4B to 4C are schematic diagrams of the operation of the actuator of the first embodiment of the present invention.

Figure 5A is a schematic cross-sectional view of the valve of the gas monitoring device in this case.

Figure 5B is a schematic diagram of the operation of the valve of the gas monitoring device in this case.

Figure 6 is a schematic cross-sectional view of the actuation sensor of the second embodiment of the gas monitoring device of the present invention.

Figure 7A is a three-dimensional exploded schematic view of the actuator of the second embodiment of the present invention viewed from a top angle.

Figure 7B is a perspective exploded schematic view of the actuator of the second embodiment of the present invention as viewed from the bottom angle.

Figure 8A is a schematic cross-sectional view of the actuator of the second embodiment of the present invention.

Fig. 8B is a schematic cross-sectional view of the actuator of other embodiments of the present invention.

Figures 8C to 8E are schematic diagrams of the operation of the actuator of the second embodiment of the present invention.

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

This case provides a gas monitoring device, please refer to Figure 1 and Figure 2 at the same time. In the first embodiment of the present case, the gas monitoring device includes at least one filter A and at least an actuation sensor B. In the following embodiments, the number of at least one filter A and at least actuation sensor B is one for example, but it is not limited to this. Filter A and actuation sensor B can also be a combination of multiple. The filter A includes two plug rings A1, and the two plug rings A1 each have a first filter screen A2. The actuation sensor B includes at least one body 1, at least one gas sensor 2, at least an actuator 3, and at least one particle monitoring module 4. In the following embodiments, the number of at least one body 1, at least one gas sensor 2, at least one actuator 3, and at least one particle monitoring module 4 is used as an example, but it is not limited thereto. The main body 1, the gas sensor 2, the actuator 3 and the particle monitoring module 4 can also be a combination of multiple. The body 1 has at least one monitoring cavity The chamber 11, at least one air inlet 12, at least one filter through opening 13, at least one air outlet 14 and at least one second filter screen 16. In order to avoid repetition, in the following description, the number of at least one monitoring chamber 11, at least one air inlet 12, at least one filter port 13, at least one air outlet 14, and at least one second filter screen 16 is one Give an example, but not limit it. The monitoring chamber 11, the air inlet 12, the filtering port 13, the air outlet 14 and the second filter 16 can also be a combination of multiples.

Please continue to refer to FIG. 2. In the first embodiment of the present invention, the air inlet 12 of the main body 1 is provided with a valve 15 for controlling the introduction of external air into the monitoring chamber 11. The filter port 13 is provided with a second filter screen 16, and the second filter screen 16 in the filter port 13 and the first filter screen A2 of the filter A have the same material. The first filter A2 and the second filter 16 can be made of a foam material, a non-woven fabric, or an activated carbon filter and a high efficiency filter (HEPA).

In the first embodiment of the present case, the gas sensor 2, the actuator 3 and the particle monitoring module 4 are arranged in the monitoring chamber 11. The particle monitoring module 4 includes a supporting partition 41, a particle monitoring base 42, a laser transmitter 43 and a particle sensor 44. The carrying partition 41 is disposed on the main body 1, a part of which is located in the monitoring chamber 11 and has a communication port 411. The particle monitoring base 42 is disposed on the supporting partition 41 and has a receiving groove 421, a monitoring channel 422, a beam channel 423 and a containing chamber 424. The receiving groove 421 is directly corresponding to the air inlet 12 and the monitoring channel 422 is connected to the receiving groove 421. The particle sensor 44 is disposed at one end of the monitoring channel 422 away from the receiving groove 421, so that the receiving groove 421 and the particle sensor 44 are respectively located at opposite ends of the monitoring channel 422. The beam channel 423 communicates between the containing chamber 424 and the monitoring channel 422. In the embodiment of this case, one end of the beam channel 423 is perpendicular to and communicated with the monitoring channel 422, and the other end is connected to the containing chamber 424, so that the containing chamber 424 and the monitoring channel 422 are respectively connected to both ends of the beam channel 423. The laser transmitter 43 is disposed in the accommodating chamber 424 and is electrically connected to the supporting partition 41. The laser transmitter 43 is used to emit a laser beam through the beam channel 423 and irradiate In the monitoring channel 422, when the suspended particles contained in the gas in the monitoring channel 422 are irradiated by the laser beam, multiple light spots will be generated. The light spots will be projected on the surface of the particle sensor 44. The particle sensor 44 measures light The point monitors the particle size and concentration of the suspended particles contained in the gas in the monitoring channel 422. After the monitoring is over, the gas will be discharged from the main body 1 through the communication port 411 and the gas outlet 14 of the main body 1 in sequence. In the first embodiment of this case. The particle sensor 44 is a PM2.5 sensor, but not limited to this. In the first embodiment of this case, the gas sensor 2 is a volatile organic compound sensor, but it is not limited to this.

Please continue to review the second figure. In the first embodiment of this case, the actuator 3 is set in the receiving groove 421 of the particle monitoring module 4. The actuator 3 can be activated to allow the external air outside the body 1 to enter The gas port 12 is introduced into the monitoring chamber 11 and guides the gas into the monitoring channel 422 to calculate the particle size and concentration of suspended particles contained in the gas. In addition, the actuator 3 can spray gas to the surface of the particle sensor 44 at a high speed to clean the surface of the particle sensor 44 and spray off the suspended particles adhering to the surface of the particle sensor 44, thereby maintaining the surface of the particle sensor 44 clean. The accuracy of its monitoring.

Please refer to Figures 3 to 4C. The actuator 3 of the first embodiment of the present invention is a gas pump. The actuator 3 includes an air jet plate 31, a cavity frame 32, and an actuator 33 stacked in sequence. , Insulating frame 34 and conductive frame 35. The air jet hole sheet 31 includes a plurality of connecting members 31a, a suspension sheet 31b and a hollow hole 31c. The floating piece 31b can be bent and vibrated, and the plurality of connecting members 31a are adjacent to the periphery of the floating piece 31b. In the first embodiment of the present case, the number of the connecting members 31a is 4, which are respectively adjacent to the 4 corners of the suspension plate 31b, but it is not limited thereto. The hollow hole 31c is formed in the center position of the suspension sheet 31b. The cavity frame 32 is supported and stacked on the suspension sheet 31b, and the actuating body 33 is supported and stacked on the cavity frame 32, and includes a piezoelectric carrier plate 33a, an adjusting resonance plate 33b, and a piezoelectric plate 33c. Among them, the piezoelectric carrier plate 33a is supported and stacked on the cavity frame 32, the adjustment resonance plate 33b is supported and stacked on the piezoelectric carrier 33a, and the piezoelectric plate 33c is supported and stacked on the adjustment On the resonance plate 33b. The piezoelectric plate 33c is deformed after voltage is applied to drive the piezoelectric carrier plate 33a and the adjustment resonance plate 33b to perform reciprocating bending vibration. The insulating frame 34 is supported and stacked on the piezoelectric carrier plate 33 a of the actuator 33, and the conductive frame 35 is supported and stacked on the insulating frame 34. Wherein, a resonance cavity 36 is formed between the actuating body 33, the cavity frame 32 and the suspension plate 31b. Wherein, the thickness of the adjustment resonance plate 33b is greater than the thickness of the piezoelectric carrier plate 33a.

Please refer to FIG. 4A, the actuator 3 is arranged in the receiving groove 421 of the particle monitoring base 42 through the connecting member 31 a. The air jet orifice sheet 31 is spaced apart from the bottom surface of the receiving groove 421, and an air flow chamber 37 is formed between the two. Please refer to FIG. 4B. When a 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 simultaneously drives the adjustment resonance plate 33b and the piezoelectric carrier plate 33a to produce displacement. At this time, the air jet orifice plate 31 will be driven together by the principle of Helmholtz resonance, so that the actuating body 33 moves away from the bottom surface of the receiving groove 421. As the actuating body 33 moves away from the bottom surface of the receiving groove 421, the volume of the airflow chamber 37 between the air jet orifice sheet 31 and the bottom surface of the receiving groove 421 increases, and the air pressure inside the airflow chamber 37 creates a negative pressure, causing the actuation Because of the pressure gradient, the air outside the air jet 3 enters the air flow chamber 37 through the gap between the connecting piece 31 a of the air jet orifice sheet 31 and the side wall of the receiving groove 421 and collects pressure. Finally, please refer to Figure 4C. When the gas continuously enters the airflow chamber 37 and the air pressure in the airflow chamber 37 forms a positive pressure, the actuating body 33 is driven by the voltage to move to the bottom surface of the receiving groove 421 to compress the airflow chamber. The volume of the chamber 37 and pushes the air in the airflow chamber 37 so that the gas enters the monitoring channel 422. Thereby, the particle sensor 44 can detect the concentration of suspended particles in the gas.

The actuator 3 in the first embodiment of this case is a gas pump. Of course, the actuator 3 in this case can also be a microelectromechanical system gas pump manufactured through a microelectromechanical process. Among them, the air jet orifice sheet 31, the cavity frame 32, the actuator 33, the insulating frame 34, and the conductive frame 35 can all be manufactured through surface micromachining technology, so as to reduce the volume of the actuator 3.

Please continue to refer to FIGS. 2 and 5A, the valve 15 includes a retaining member 151, a sealing member 152, and a displacement member 153. The displacement member 153 is disposed between the holding member 151 and the sealing member 152. The holding member 151, the sealing member 152, and the displacement member 153 respectively have a plurality of through holes 151a, 152a, and 153a. The plurality of through holes 151a of the holder 151 and the plurality of through holes 153a of the displacement member 153 are aligned with each other, while the plurality of through holes 152a of the sealing member 152 and the plurality of through holes 151a of the holder 151 are misaligned and misaligned.

Please refer to FIG. 5A first, the displacement member 153 is a charged material, and the holding member 151 is a conductive material with two polarities. When the displacement member 153 and the holding member 151 maintain the same polarity, the displacement member 153 approaches the sealing member 152 to close the valve 15. Please refer to FIG. 5B again. When the displacement member 153 and the holding member 151 maintain different polarities, the displacement member 153 approaches the holding member 151 to constitute the opening of the valve 15. The displacement member 153 is moved by adjusting the polarity of the holding member 151 to form the open and closed state of the valve 15.

In addition, the displacement member 153 of the valve 15 may be a magnetic material, and the holding member 151 may be a magnetic material with a controlled polarity change. When the displacement member 153 and the holding member 151 maintain the same polarity, the displacement member 153 approaches the sealing member 152 to close the valve 15; on the contrary, when the holding member 151 changes its polarity to a different polarity from the displacement member 153, the displacement member 153 will face the holding member 151 approaches and constitutes valve 15 to open. From the above description, it can be known that by adjusting the magnetism of the holding member 151, the displacement member 153 can be moved to adjust the opening and closing state of the valve 15. It should be noted that the holder 151 can be controlled by a processor (not shown) to control its magnetic pole polarity.

The gas monitoring device in this case further includes a microprocessor (not shown), which can calculate and output the monitoring data of the gas sensor 2 and the particle sensor 44 of the particle monitoring module 4. The carrier partition 41 of the particle monitoring module 4 is a driving circuit board and has a connector 412, which is electrically connected to a microprocessor for controlling the output and input of signals. The particle sensor 44, the actuator 3, the valve 15 and the gas sensor 2 are all electrically connected to the supporting partition 41.

When the user needs to monitor the inhaled gas information, the control valve 15 is opened to encourage the gas to enter through the air inlet 12 or the filter port 13. At this time, the gas sensor 2 and the particle monitoring module 4 located in the monitoring chamber 11 will start The gas in the monitoring chamber 11 is monitored to calculate the gas information and the particle size and concentration of the suspended particles contained therein.

When the user needs to confirm the filtering effect of the filter A and the timing of replacing the first filter A2, he only needs to confirm the state of the second filter 16 of the gas monitoring device in this case and the timing of replacing the second filter 16. When confirming the replacement timing of the second filter screen 16, control the closing valve 15 to make the air inlet 12 close. When the actuator 3 is activated, the air outside the body 1 will enter through the filter port 13. The gas entering the monitoring chamber 11 will be monitored by the gas sensor 2 in the monitoring chamber 11 and the particle sensor 44 of the particle monitoring module 4, and the gas information and the particle size and concentration of the suspended particles contained in it are calculated. When the microprocessor opens the valve 15, the gas information monitored by the gas sensor 2 and the particle size and concentration of the suspended particles monitored by the particle sensor 44 of the particle monitoring module 4 are the same as the gas information monitored when the valve 15 is closed Comparing with the particle size and concentration of suspended particles, the filtering effect of the second filter screen 16 can be obtained. When the result of the comparison operation reaches a preset value, it is the time to replace the second filter screen 16. Since the second filter 16 in the filter port 13 has the same material as the first filter A2 of the filter A, the user can determine to replace the second filter 16 of the gas monitoring device and the first filter of the filter A The timing of the net A2 allows the filter placed in the user's nasal cavity to be used safely and reliably.

Please refer to Fig. 6, the structure and operation mode of the second embodiment of the gas monitoring device in this case are basically the same as the first embodiment, except for the structure and operation mode of the actuator 3'. The second embodiment of this case is as follows The structure and operation mode of the actuator 3'of the example are explained.

Please refer to Fig. 7A, Fig. 7B and Fig. 8A. The actuator 3'is a gas pump, including an intake plate 31', a resonance plate 32', a piezoelectric actuator 33', and a An insulating sheet 34', a conductive sheet 35', and a second insulating sheet 36'. Inlet plate 31', resonance plate 32', piezoelectric actuation The device 33', the first insulating sheet 34', the conductive sheet 35', and the second insulating sheet 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 busbar groove 31b', and a busbar chamber 31c'. The bus bar groove 31b' is provided corresponding to the air inlet hole 31a'. The gas inlet hole 31a' is for introducing gas, and the bus bar groove 31b' guides the gas introduced from the gas inlet hole 31a' to flow to the confluence chamber 31c'. The resonant sheet 32' has a hollow hole 32a', a movable portion 32b', and a fixed portion 32c'. The hollow hole 32a' is provided corresponding to the confluence chamber 31c' of the intake plate 31'. The movable portion 32b' is provided around the hollow hole 32a', and the fixed portion 32c' is provided on the periphery of the movable portion 32b'. The resonant plate 32' and the piezoelectric actuator 33' together form a cavity space 37' therebetween. Therefore, when the piezoelectric actuator 33' is driven, the gas will be introduced from the gas inlet hole 31a' of the gas inlet plate 31', and then collected into the confluence chamber 31c' through the busbar groove 31b'. Then, the gas passes through the hollow hole 32a' of the resonance plate 32', so that the piezoelectric actuator 33' and the movable portion 32b' of the resonance plate 32' resonate to transmit the gas.

Please continue to refer to FIGS. 7A, 7B, and 8A. In the second embodiment, the piezoelectric actuator 33' includes a suspension plate 33a', an outer frame 33b', at least one bracket 33c', and a press Electric element 33d'. In the second embodiment, the floating plate 33a' has a square shape and can bend and vibrate, but it is not limited to this. The floating plate 33a' has a convex portion 33f'. In the second embodiment, the reason why the suspension board 33a' adopts a square shape design is because the structure of the square suspension board 33a' obviously has the advantage of energy saving compared with the circular shape. The power consumption of the capacitive load operating at the resonance frequency will increase as the resonance frequency rises. Since the resonance frequency of the square suspension plate 33a' is lower than that of the circular suspension plate, the power consumption will also be lower. However, in other embodiments, the shape of the floating plate 33a' can be changed according to actual needs. The outer frame 33b' is arranged around the outer side of the floating plate 33a'. 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 33a'. The piezoelectric element 33d' has one side length which is less than or equal to one side length of the floating plate 33a'. And the piezoelectric element 33d' is attached to a surface of the suspension plate 33a' for applying a driving voltage to drive the suspension plate 33a' to bend and vibrate. Hang At least one gap 33e' is formed between the floating plate 33a', the outer frame 33b' and the bracket 33c' for gas to pass through. The convex portion 33f' is protrudingly provided on the other surface of the floating plate 33a'. In the second embodiment, the floating plate 33a' and the convex portion 33f' are an integrally formed structure manufactured by an etching process, but not limited to this.

Please refer to FIG. 8A. In the second embodiment, the cavity space 37' can be filled with a material, such as conductive material, by using the gap generated between the resonance plate 32' and the outer frame 33b' of the piezoelectric actuator 33' Adhesive, but not limited to this, can maintain a certain depth between the resonant sheet 32' and the suspension plate 33a', thereby guiding the gas to flow more quickly. In addition, since the suspension plate 33a' and the resonance sheet 32' are kept at an appropriate distance, the contact interference between each other is reduced, and the generation of noise can also be reduced. In other embodiments, the height of the outer frame 33b' of the piezoelectric actuator 33' can be increased to reduce the gap between the resonant sheet 32' and the outer frame 33b' of the piezoelectric actuator 33'. The thickness of the conductive adhesive. In this way, under the condition that the suspension plate 33a' and the resonance plate 32' can still be kept at an appropriate distance, the overall assembly of the actuator 3'will not affect the filling thickness of the conductive adhesive due to the hot pressing temperature and the cooling temperature, so as to avoid the conductive adhesive Thermal expansion and contraction factors affect the actual size of the chamber space 37' after the assembly is completed.

Please refer to Figure 8B. In other embodiments, the floating plate 33a' can be formed by stamping, so that the floating plate 33a' extends a distance outward, and the extending distance can be formed by the bracket 33c' between the floating plate 33a' and the outside. The adjustment between the frames 33b' makes the surface of the convex portion 33f' on the floating plate 33a' and the surface of the outer frame 33b' form a non-coplanar surface. A small amount of filling material, such as conductive glue, is applied to the assembly surface of the outer frame 33b', and the piezoelectric actuator 33' is attached to the fixing portion 32c' of the resonant sheet 32' by hot pressing, so as to press The electric actuator 33' can be assembled and combined with the resonant sheet 32', so that the structure of the suspension plate 33a' of the piezoelectric actuator 33' is directly formed by stamping and forming a structural improvement of a chamber space 37'. The chamber space 37' can be completed by adjusting the stamping distance of the suspension plate 33a' of the piezoelectric actuator 33', which effectively simplifies the structural design of the adjustment chamber space 37', and also achieves a simplified process and shortens the process time Etc.

Please go back to FIGS. 7A and 7B. In the second embodiment, the first insulating sheet 34', the conductive sheet 35', and the second insulating sheet 36' are all frame-shaped thin sheets, but they are not limit. The air intake plate 31', the resonance sheet 32', the piezoelectric actuator 33', the first insulating sheet 34', the conductive sheet 35', and the second insulating sheet 36' can all be manufactured through the micro-electromechanical surface micromachining technology process. The size of the actuator 3'is reduced to form an actuator 3'of a microelectromechanical system.

Next, referring to Fig. 8C, in the operation process of the piezoelectric actuator 33', the piezoelectric element 33d' of the piezoelectric actuator 33' is deformed after being applied with a driving voltage, which drives the suspension plate 33a' away from the air intake When the direction of the plate 31' is displaced, the volume of the chamber space 37' is increased at this time, and a negative pressure is formed in the chamber space 37', and the gas in the confluence chamber 31c' is sucked into the chamber space 37'. At the same time, the resonance sheet 32' generates resonance and synchronously shifts away from the air inlet plate 31', which in turn increases the volume of the confluence chamber 31c'. And because the gas in the confluence chamber 31c' enters the chamber space 37', the confluence chamber 31c' is also in a negative pressure state, and the gas is sucked into the confluence through the air inlet 31a' and the bus groove 31b' Inside the chamber 31c'.

Furthermore, as shown in Figure 8D, the piezoelectric element 33d' drives the suspension plate 33a' to move toward the intake plate 31', compressing the chamber space 37', and similarly, the resonance plate 32' is actuated by the suspension plate 33a', Resonance is generated and displaced toward the intake plate 31', forcing the gas in the synchronous pushing chamber space 37' to be further transmitted through the gap 33e' to achieve the effect of gas transmission.

Finally, as shown in Figure 8E, when the suspension plate 33a' is driven to return to the state not driven by the piezoelectric element 33d', the resonant plate 32' is also driven to move away from the air intake plate 31'. The resonance piece 32' at this time moves the gas in the compression chamber space 37' to the gap 33e', and increases the volume in the confluence chamber 31c', so that the gas can continuously pass through the gas inlet hole 31a' and the bus groove 31b 'To converge in the confluence chamber 31c'. By continuously repeating the actuation steps of the actuator 3'shown in Fig. 8C to Fig. 8E, the actuator 3'can continuously flow gas at a high speed to achieve the operation of transmitting and outputting gas by the actuator 3'.

Next, please refer back to FIGS. 7A and 7B. 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 actuator. The piezoelectric element 33d' of the actuator 33'. The conductive pins 351' of the conductive sheet 35' are connected to an external current to drive the piezoelectric element 33d' of the piezoelectric actuator 33'. In addition, the arrangement of the first insulating sheet 34' and the second insulating sheet 36' can avoid the occurrence of short circuits.

In summary, the gas monitoring device provided in this case is used to monitor the air quality after the gas has passed through the second filter, providing users with real-time and accurate gas information, as well as filters placed in the nasal cavity. The filter effect of the filter screen provided by the time, so that the user can judge the time to replace the filter screen, improve the reliability of safe use, and is extremely useful.

This case can be modified in many ways by those who are familiar with this technology, but none of them deviates from the protection of the scope of the patent application.

A‧‧‧Filter

A1‧‧‧Stop ring

A2‧‧‧First filter

Claims (20)

A gas monitoring device includes: a filter with two plug rings, each of which has a first filter screen; and at least an actuation sensor, the actuation sensor includes: a body with a monitoring chamber, The monitoring chamber has at least one air inlet, at least one filtering port, and at least one air outlet. The air inlet is provided with a valve for controlling the external air to be introduced into the air inlet through one of the air inlet and the filtering port. In the monitoring chamber, the filtration port is provided with a second filter screen with the same material as the first filter screen of the filter; at least one gas sensor is provided in the monitoring chamber; at least an actuator is provided in the monitor The chamber is used to control the introduction of gas; and at least one particle monitoring module is arranged in the monitoring chamber and includes a particle sensor; wherein, the valve is opened first, and the actuator is activated at the same time, causing the external air to flow from the The air inlet is introduced into the monitoring chamber, the gas is monitored through the gas sensor, and the particle size and concentration of the suspended particles contained in the gas are monitored through the particle sensor of the particle monitoring module, and then the valve is closed to allow external air to pass from the The filter port is introduced into the monitoring chamber, and the external air is filtered through the second filter screen, and the filtered external air is monitored through the gas sensor and the particle sensor, so as to calculate the content and the content of the filtered air in the monitoring chamber The particle size and concentration of suspended particles are used to determine when to replace the first filter and the second filter. According to the gas monitoring device described in item 1 of the scope of patent application, the particle monitoring module further comprises: a bearing partition, which is arranged on the body and has a communication port; and a particle monitoring base is arranged on the bearing partition. The board is provided with a holding groove, a monitoring channel, a beam channel and a containing chamber, and the holding groove is set directly corresponding to the air inlet The monitoring channel is connected to the supporting groove, the particle sensor is arranged in the monitoring channel at an end far from the supporting groove, and the beam channel is connected between the accommodating chamber and the monitoring channel; and a laser emission The device is arranged in the accommodating chamber and is electrically connected to the carrying partition to emit a laser beam into the beam channel, so that the gas passing through the monitoring channel is irradiated by the laser beam, and the gas is suspended The particles are irradiated by the laser beam and project a light spot. The particle sensor monitors the particle size and concentration of the aerosol by measuring the light spot projected by the aerosol. In addition, the gas passing through the monitoring channel has to pass through the communication port and The air outlet is discharged out of the body. For the gas monitoring device described in item 2 of the scope of the patent application, the actuator is arranged in the holding groove for guiding the gas into the monitoring channel. In the gas monitoring device described in item 1 of the scope of patent application, the particle sensor is a PM2.5 sensor. The gas monitoring device described in item 1 of the scope of patent application, wherein the actuator sprays gas to a surface of the particle sensor at a high speed, cleans the surface of the particle sensor, and sprays the particles attached to the surface Suspended particles, so as to maintain the accuracy of the particle sensor monitoring. The gas monitoring device described in item 2 of the scope of patent application, wherein the carrier partition is a drive circuit board and includes a connector, which is electrically connected to a microprocessor, and the microprocessor is used to control signal output And input. The gas monitoring device described in item 6 of the scope of patent application, wherein the particle sensor, the actuator, and the valve are electrically connected to the bearing partition. The gas monitoring device described in item 7 of the scope of patent application, wherein the valve includes a holder, a seal, and a displacement piece, wherein the displacement piece is disposed between the holder and the seal, and the holder , The sealing member and the displacement member respectively have a plurality of through holes, and the holding The positions of the plurality of through holes on the part and the displacement part are aligned with each other, and the positions of the plurality of through holes of the sealing part and the holding part are misaligned and misaligned with each other, wherein the displacement part is electrically connected to the bearing partition, It is used to drive the displacement member to approach the holding member to form the opening of the valve. According to the gas monitoring device described in item 2 of the scope of patent application, the actuator is a gas pump, which includes: a jet orifice sheet, including a plurality of connecting members, a suspension sheet and a hollow hole, the suspension sheet It can be flexurally vibrated, the plurality of connecting members are adjacent to the peripheral edge of the suspension sheet, and the hollow hole is formed in the center of the suspension sheet, the plurality of connecting members elastically support the suspension sheet, and the arrangement of the plurality of connecting members makes the alignment The actuator is arranged in the holding groove of the particle monitoring base, an air flow chamber is formed between the air jet orifice sheet and the holding groove, and at least one gap is formed between the plurality of connecting pieces and the suspension sheet Between; a cavity frame, the bearing is stacked on the suspension sheet; a moving body, the bearing is stacked on the cavity frame, used to receive voltage to generate reciprocating bending vibration; an insulating frame, the bearing is stacked on the On the actuating body; and a conductive frame, which is stacked on the insulating frame; wherein a resonance chamber is formed between the actuating body, the cavity frame, and the suspension plate, and the actuating body is driven to drive The air jet orifice sheet generates resonance, causing the suspension sheet of the air jet orifice sheet to generate reciprocating vibration displacement, thereby driving the gas into the air flow chamber through the at least one gap, and then enters the monitoring channel to realize the gas transmission. According to the gas monitoring device described in item 9 of the scope of patent application, the actuating body includes: a piezoelectric carrier plate, the carrier is stacked on the cavity frame; an adjustment resonance plate, the carrier is stacked on the piezoelectric carrier On the board; and a piezoelectric plate, bearing and stacking on the adjusting resonance plate, used to receive voltage to drive the piezoelectric carrier plate and the adjusting resonance plate to produce reciprocating bending vibration. The gas monitoring device described in item 10 of the scope of patent application, wherein the thickness of the adjusting resonance plate is greater than the thickness of the piezoelectric carrier plate. The gas monitoring device described in the first item of the patent application, wherein the actuator is a gas pump, which includes: an air inlet plate with at least one air inlet hole and at least a pair of confluence corresponding to the position of the air inlet hole Row groove and a confluence chamber, the gas inlet hole is used to introduce gas, and the bus row groove is used to guide the gas introduced from the inlet hole to the confluence chamber; a resonance plate has a corresponding position of the confluence chamber Hollow hole, and a movable part surrounding the hollow hole; and a piezoelectric actuator disposed in position corresponding to the resonant plate, and a cavity space is formed between the resonant plate and the piezoelectric actuator , When the piezoelectric actuator is driven, the gas is introduced from the gas inlet hole of the gas inlet plate, is collected into the confluence chamber through the bus bar groove, and then passes through the hollow hole of the resonance plate, The piezoelectric actuator is caused to resonate with the movable part of the resonant sheet to transmit gas; the intake plate, the resonant sheet, and the piezoelectric actuator are stacked in sequence. The gas monitoring device described in item 12 of the scope of patent application, wherein the piezoelectric actuator includes: a suspension plate having a square shape and capable of bending and vibrating; an outer frame arranged around the outer side of the suspension plate; At least one bracket is connected between the suspension plate and the outer frame to provide elastic support; and a piezoelectric element having a side length that is less than or equal to the side length of the suspension plate, and the piezoelectric element It is attached to a surface of the suspension plate for applying voltage to drive the suspension plate to bend and vibrate. The gas monitoring device described in item 12 of the scope of patent application, wherein the actuator further includes: A first insulating sheet, a conductive sheet and a second insulating sheet, the air intake plate, the resonance sheet, the piezoelectric actuator, the first insulating sheet, the conductive sheet and the second insulating sheet are in sequence Stacking settings. The gas monitoring device described in item 1 of the scope of patent application, wherein the gas sensor is a volatile organic compound sensor. In the gas monitoring device described in item 1 of the scope of patent application, the first filter screen is made of a foam material. For the gas monitoring device described in item 1 of the scope of patent application, the first filter is made of a non-woven fabric. For the gas monitoring device described in item 1 of the scope of patent application, the first filter is at least one of an activated carbon filter and a high efficiency filter (HEPA). For example, the gas monitoring device described in item 1 of the scope of patent application further includes a microprocessor for performing calculation processing on the gas sensor and the data monitored by the particle sensor of the particle monitoring module and outputting the When the valve is opened, the data monitored by the gas sensor and the particle sensor of the particle monitoring module are compared with the data monitored by the gas sensor and the particle sensor of the particle monitoring module when the valve is closed. When the result of the comparison operation reaches a preset value, it is the time to replace the first filter and the second filter. A gas monitoring device includes: at least one filter with at least two plug rings, each of which has at least one first filter screen; at least an actuation sensor, the actuation sensor includes: at least one body with at least one A monitoring chamber, the monitoring chamber having at least one air inlet, at least one filter port and at least one air outlet, the air inlet is provided with at least one valve to control the external air to pass through the air inlet and the filter port One of them into the monitoring chamber Inside, the filtering port is provided with at least one second filter with the same material as the first filter of the filtered air; at least one gas sensor is provided in the monitoring chamber; at least an actuator is provided in the monitoring chamber Room for controlling the introduction of gas; and at least one particle monitoring module arranged in the monitoring chamber and containing at least one particle sensor; wherein, the valve is opened first, and the actuator is activated at the same time, causing external air to flow from the The air inlet is introduced into the monitoring chamber, the gas is monitored through the gas sensor, and the particle size and concentration of the suspended particles contained in the gas are monitored through the particle sensor of the particle monitoring module, and then the valve is closed to allow external air to pass from the The filter port is introduced into the monitoring chamber, and the external air is filtered through the second filter screen, and the filtered external air is monitored through the gas sensor and the particle sensor, so as to calculate the content and the content of the filtered air in the monitoring chamber The particle size and concentration of suspended particles are used to determine when to replace the first filter and the second filter.

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