CN113280446B

CN113280446B - Miniature gas detection and purification device

Info

Publication number: CN113280446B
Application number: CN202010101902.XA
Authority: CN
Inventors: 莫皓然; 林景松; 吴锦铨; 韩永隆; 黄启峰
Original assignee: Microjet Technology Co Ltd
Current assignee: Microjet Technology Co Ltd
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2023-09-26
Anticipated expiration: 2040-02-19
Also published as: CN113280446A

Abstract

A miniature gas detection cleaning device for a user to carry with him, comprising: the device comprises a body, a purification module, a wind guide machine and a gas detection module, wherein the gas detection module detects the gas in the surrounding environment to obtain gas detection data, and accordingly controls the wind guide machine to perform starting operation so as to guide the gas into the body, the purification module is used for filtering and purifying, and finally the purified gas is led out to an area close to a user.

Description

Miniature gas detection and purification device

[ field of technology ]

The present invention relates to a miniature gas detection and purification device, and more particularly to a miniature gas detection and purification device for a user to carry about.

[ background Art ]

Modern people pay more attention to the quality of gas around life, such as carbon monoxide, carbon dioxide, volatile organic compounds (Volatile Organic Compound, VOCs), PM2.5, nitric oxide, sulfur monoxide and the like, and even particles contained in the gas are exposed in the environment to influence the health of the human body, and serious even life-threatening effects are caused. Therefore, environmental gas quality is important in various countries, and how to monitor the environmental gas to avoid the separation is an important issue.

How to confirm the quality of the gas, it is feasible to monitor the ambient gas with a gas sensor. If the monitoring information can be provided immediately, people in the harmful environment can be warned, people can be prevented or escaped immediately, the health influence and injury caused by exposure to harmful gases in the environment can be avoided, and the monitoring of the surrounding environment by using the gas sensor can be said to be a very good application. The air cleaning device is an air pollution solution for preventing modern people from inhaling harmful gases, so the air cleaning device is combined with the gas monitor, so that a user can conveniently carry the air cleaning device at any time and any place to monitor the air quality in real time, and the air quality benefit of the area close to the user can be provided, which is a main subject developed by the scheme.

[ invention ]

The main purpose of the present invention is to provide a miniature gas detection and cleaning device for a user to carry about, comprising a body, a purification module, a wind guiding fan and a gas detection module, wherein the gas detection module detects the gas in the surrounding environment of the user to obtain gas detection data so as to control the wind guiding fan to start operation, so as to guide the gas in the surrounding environment of the user to enter the body, filter and purify the gas through the purification module, and finally, the benefit of the purified gas approaching the area of the user is derived.

One broad aspect of the present invention is a micro gas detection cleaning device comprising: the portable air inlet device comprises a body, a plurality of air inlets, a plurality of air outlets, a plurality of detection air inlets and a plurality of detection air outlets, wherein the body is used for a user to carry about and is provided with at least one air inlet, at least one air outlet, a detection air inlet and a detection air outlet, and a gas flow passage is arranged between the air inlet and the air outlet; a purifying module arranged in the gas flow passage of the body; the air guide fan is arranged in the air flow channel of the body and is adjacent to one side of the purification module, guide air is guided into the air guide fan through the air inlet to be filtered and purified by the purification module, and finally, the guide air is guided out of the air outlet; the gas detection module is arranged in the body and corresponds to the detection air inlet and the detection air outlet, is used for detecting gas to obtain gas detection data, and externally transmits the gas detection data; the air guide fan is controlled to start according to the gas detection data detected by the gas detection module so as to guide the gas to be guided into the air guide fan through the air inlet to be filtered and purified by the purification module, and finally the purified gas is guided out of the air outlet to approach to an area of the user.

[ description of the drawings ]

FIG. 1 is a schematic diagram showing the appearance of a miniature gas detection and purification device.

FIG. 2A is a schematic cross-sectional view of a first embodiment of a purification module of the mobile gas detection and purification apparatus of the present invention.

FIG. 2B is a schematic cross-sectional view of a second embodiment of a purification module of the mobile gas detection and purification apparatus of the present invention.

FIG. 2C is a schematic cross-sectional view of a third embodiment of a purification module of the mobile gas detection and purification apparatus of the present invention.

FIG. 2D is a schematic cross-sectional view of a purification module of the mobile gas detection and purification apparatus of the present invention.

FIG. 2E is a schematic cross-sectional view of a purification module of the mobile gas detection and purification apparatus of the present invention.

FIG. 3A is an exploded view of the actuating pump-related components of the miniature gas detection cleaning device from a front perspective.

FIG. 3B is an exploded view, from a backside angle, of the relevant components in the form of an actuation pump of the micro gas detection purge device of the present disclosure.

FIG. 4A is a schematic cross-sectional view of an actuator pump of the micro gas detection purifier.

FIG. 4B is a schematic cross-sectional view of another embodiment of an actuator pump of the micro gas detection purge apparatus.

FIGS. 4C-4E are schematic diagrams illustrating actuation of the actuation pump of the micro gas detection purge device of FIG. 4A.

Fig. 5A is a perspective view of the gas detecting body.

Fig. 5B is a schematic perspective view of the gas detecting body at another angle.

Fig. 5C is an exploded perspective view of the present gas detection body.

Fig. 5D is a schematic diagram of related components of the gas detection module.

Fig. 6A is a schematic perspective view of a base of the gas detecting body.

Fig. 6B is another perspective view of the base of the gas detecting body.

Fig. 7 is a schematic perspective view of a laser module and a particle sensor accommodated in a base of a gas detecting body.

Fig. 8A is an exploded perspective view of the piezoelectric actuator element combined with the base.

Fig. 8B is a schematic perspective view of the piezoelectric actuator and the base.

Fig. 9A is an exploded perspective view of the piezoelectric actuator.

Fig. 9B is another exploded perspective view of the piezoelectric actuator.

FIG. 10A is a schematic cross-sectional view of a piezoelectric actuator coupled to a carrier region of an air guide assembly.

Fig. 10B and 10C are schematic views illustrating the actuation of the piezoelectric actuator of fig. 10A.

Fig. 11A to 11C are schematic views of a gas path of the present gas detection body.

Fig. 12 is a schematic view of a path of a laser beam emitted from a laser module of the gas detection body.

FIG. 13 is a block diagram of the configuration of the control circuit board and related components of the gas detection module.

[ detailed description ] of the invention

Some exemplary embodiments that exhibit the features and advantages of the present disclosure are described in detail in the following description. It will be understood that various changes can be made in the above-described embodiments without departing from the scope of the invention, and that the description and illustrations herein are to be taken in an illustrative and not a limiting sense.

Referring to fig. 1 and 2A, the present disclosure provides a miniature gas detection cleaning device for a user to carry about, comprising a main body 1, a purification module 2, a blower 3, and a gas detection module 4. Therefore, the overall structure design will consider the convenience of carrying about or carrying about the volume, and the body 1 of the present case will consider the design of the length L, width W, height H and weight. In a preferred embodiment of the present application, the length L of the body 1 is between 60 mm (millimeter) and 120 mm, the width is between 30 mm and 90 mm, the height is between 23 mm and 67 mm, and the weight of the body 1 is between 150g (gram) and 300 g; alternatively, in another preferred embodiment of the present invention, the length L of the body 1 is between 80 mm and 100 mm, the width is between 60 mm and 70 mm, the height is between 35 mm and 55 mm, and the weight of the body 1 is between 100g and 200 g; alternatively, in the preferred embodiment, the length L of the body 1 is 90 mm, the width W is 60 mm, the height H is 45 mm, and the weight of the body 1 is 300g or less; the whole installation of the miniature gas detection and purification device is most suitable for the user to carry with.

As shown in fig. 1 and 2A, the body 1 has at least one air inlet 11, at least one air outlet 12 and an air flow channel 13, wherein the air flow channel 13 is disposed between the air inlet 11 and the air outlet 12, and the body 1 has a detection air inlet 14, a detection air outlet 15 and a fastening tab 16, and the fastening tab 16 can be fastened with a hanging belt (not shown) for fastening and wearing the body 1 on a user.

As shown in fig. 2A, the purification module 2 is disposed in the gas flow channel 13 to filter a gas introduced from the gas flow channel 13; the air guide fan 3 is disposed in the air channel 13 and is adjacent to one side of the purification module 2, and the guide air is guided into the air inlet 11 to be filtered and purified by the purification module 2, and finally guided out from the air outlet 12.

Referring to fig. 2A to 2E, the purification module 2 is disposed in the gas flow channel 13, which can be implemented in various ways. For example, as shown in fig. 2A, in the first embodiment of the purification module 2, the purification module 2 is a filter unit, and includes a filter 2A. When the gas is introduced into the gas flow channel 13 through the air guide fan 3, the gas is adsorbed by the filter screen 2a to achieve the effect of filtering and purifying the introduced gas, wherein the filter screen 2a can be one of an electrostatic filter screen, an activated carbon filter screen or a high efficiency filter screen (HEPA). In some embodiments, the filter screen 2a may be coated with a layer of cleaning factor containing chlorine dioxide, so as to inhibit viruses and bacteria in the air, and the inhibition rate is more than 99% of influenza a virus, influenza B virus, enterovirus and norovirus, thereby helping to reduce the cross infection of viruses. In other embodiments, the filter may be coated with a herbal protective coating that extracts ginkgo and japanese skin, forming a herbal protective anti-allergic filter that is effective in resisting sensitization and further disrupting surface proteins of influenza viruses (e.g., H1N1 influenza viruses) that pass through the filter. In other embodiments, silver ions may be coated on the filter screen to inhibit viruses and bacteria in the air.

As shown in fig. 2B, in a second embodiment of the purification module 2, the purification module 2 may be a photocatalyst unit, which includes a photocatalyst 2B and an ultraviolet lamp 2c, and is respectively disposed in the gas flow channel 13 to maintain a space therebetween, so that the gas is guided into the gas flow channel 13 through the air guide 3, and the photocatalyst 2B irradiates through the ultraviolet lamp 2c to convert the light energy into chemical energy, thereby decomposing the harmful gas and sterilizing the gas, so as to achieve the effect of filtering and purifying the introduced gas. Of course, the purifying module 2 is a photo catalyst unit, and a filter 2a may be disposed in the air channel 13 to enhance the effect of purifying the air, wherein the filter 2a may be an electrostatic filter, an activated carbon filter or a high efficiency filter (HEPA).

As shown in fig. 2C, in a third embodiment of the purification module 2, the purification module 2 may be a photoplasma unit, including a nano-light tube 2d, disposed in the gas flow channel 13. When the gas is guided into the gas flow channel 13 through the control of the air guide fan 3, oxygen molecules and water molecules in the gas are decomposed into ion airflow with high-oxidability photoplasma and organic molecules, and the gas molecules containing volatile formaldehyde, toluene, volatile organic gas (VOC) and the like are decomposed into water and carbon dioxide through the irradiation of the nano light tube 2d, so that the introduced gas is filtered and purified. Of course, the purification module 2 is a photoplasma unit, and a filter 2a may be disposed in the gas flow channel 13 to enhance the effect of purifying the gas, wherein the filter 2a may be an electrostatic filter, an activated carbon filter or a high efficiency filter (HEPA).

As shown in fig. 2D, in a fourth embodiment of the purification module 2, the purification module 2 may be a negative ion unit, which includes at least one electrode wire 2e, at least one dust collecting plate 2f and a boost power supply 2g, wherein each electrode wire 2e and each dust collecting plate 2f are disposed in the gas flow channel 13, and the boost power supply 2g provides high-voltage discharge for each electrode wire 2e, each dust collecting plate 2f has negative charges, so that the gas is guided into the gas flow channel 13 through the control of the air guide 3, and the positive charges of the particles contained in the gas are attached to each dust collecting plate 2f with negative charges through the high-voltage discharge of each electrode wire 2e, so as to achieve the effect of filtering and purifying the guided gas. Of course, the purification module 2 is a negative ion unit, and a filter 2a may be disposed in the gas flow channel 13 to enhance the effect of purifying the gas, wherein the filter 2a may be an electrostatic filter, an activated carbon filter or a high efficiency filter (HEPA).

As shown in fig. 2E, in a fifth embodiment of the purification module 2, the purification module 2 may be a plasma unit, which comprises an upper electric field protection net 2H, an adsorption screen 2i, a high voltage discharge electrode 2j, a lower electric field protection net 2k and a boost power supply 2g, wherein the upper electric field protection net 2H, the adsorption screen 2i, the high voltage discharge electrode 2j and the lower electric field protection net 2k are disposed in the gas flow channel 13, the adsorption screen 2i, the high voltage discharge electrode 2j are disposed between the upper electric field protection net 2H and the lower electric field protection net 2k, and the boost power supply 2g provides high voltage discharge to the high voltage discharge electrode 2j to generate high voltage plasma column with plasma, so that the gas is guided into the gas flow channel 13 through the air guide 3, and oxygen molecules and water molecules contained in the gas are ionized to generate cations (H ⁺ ) And yinIon (O) ₂ ^- ) After the substances with water molecules attached around the ions are attached to the surfaces of viruses and bacteria, the substances are converted into active oxygen (hydroxyl and OH groups) with strong oxidability under the action of chemical reaction, so that the hydrogen of proteins on the surfaces of the viruses and bacteria is removed, and the active oxygen is decomposed (oxidative decomposition) to achieve the effect of filtering and purifying the introduced gas. Of course, the purification module 2 is a negative ion unit, and a filter 2a may be disposed in the gas flow channel 13 to enhance the effect of purifying the gas, wherein the filter 2a may be an electrostatic filter, an activated carbon filter or a high efficiency filter (HEPA).

The air guide 3 may be a fan, such as a scroll fan, a centrifugal fan, etc., or the air guide 3 shown in fig. 3A, 3B, 4A and 4B may be an actuating pump 30. The actuating pump 30 may be a micro pump type, and is composed of an inflow plate 301, a resonance plate 302, a piezoelectric actuator 303, a first insulation plate 304, a conductive plate 305 and a second insulation plate 306 sequentially stacked. The inflow plate 301 has at least one inflow hole 301a, at least one bus duct 301b and a converging chamber 301c, the inflow hole 301a is used for introducing gas, the inflow hole 301a correspondingly penetrates the bus duct 301b, and the bus duct 301b converges into the converging chamber 301c, so that the gas introduced by the inflow hole 301a can converge into the converging chamber 301c. In the present embodiment, the number of the inflow holes 301a and the number of the bus bar grooves 301b are the same, the number of the inflow holes 301a and the number of the bus bar grooves 301b are 4, but not limited to, the 4 inflow holes 301a respectively penetrate the 4 bus bar grooves 301b, and the 4 bus bar grooves 301b are converged into the bus bar chamber 301c.

Referring to fig. 3A, 3B and 4A, the resonant plate 302 is assembled on the inflow plate 301 by a bonding method, and the resonant plate 302 has a hollow hole 302a, a movable portion 302B and a fixed portion 302c, wherein the hollow hole 302a is located at the center of the resonant plate 302 and corresponds to the converging chamber 301c of the inflow plate 301, the movable portion 302B is disposed at the periphery of the hollow hole 302a and in a region opposite to the converging chamber 301c, and the fixed portion 302c is disposed at the outer periphery of the resonant plate 302 and is adhered to the inflow plate 301.

With continued reference to fig. 3A, 3B and 4A, the piezoelectric actuator 303 includes a suspension plate 303A, an outer frame 303B, at least one bracket 303c, a piezoelectric element 303d, at least one gap 303e and a protrusion 303f. The suspension plate 303a is square, and the square suspension plate 303a has the advantage of power saving compared with the design of a circular suspension plate, and the square suspension plate 303a has the advantage of power saving because the power consumption of the capacitive load operated at the resonance frequency is increased along with the increase of the frequency, and the opposite power consumption of the square suspension plate 303a is obviously lower than that of the circular suspension plate because the resonance frequency of the square suspension plate 303a at the side is obviously lower, namely the square suspension plate 303a has the advantage of power saving; the outer frame 303b is disposed around the outer side of the suspension plate 303 a; at least one bracket 303c is connected between the suspension plate 303a and the outer frame 303b to provide a supporting force for elastically supporting the suspension plate 303 a; and a piezoelectric element 303d having a side length smaller than or equal to a side length of a suspension plate 303a, and the piezoelectric element 303d being attached to a surface of the suspension plate 303a for applying a voltage to drive the suspension plate 303a to vibrate in bending; at least one gap 303e is formed among the suspending plate 303a, the outer frame 303b and the bracket 303c for allowing the gas to pass through; the convex portion 303f is provided on the other surface of the suspension plate 303a opposite to the surface on which the piezoelectric element 303d is attached. In this embodiment, the protrusion 303f may be a protrusion structure formed by integrally forming a protrusion on the opposite surface of the suspension 303a to the surface to which the piezoelectric element 303d is attached by an etching process.

With continued reference to fig. 3A, 3B and 4A, the above-mentioned inflow plate 301, the resonant plate 302, the piezoelectric actuator 303, the first insulating plate 304, the conductive plate 305 and the second insulating plate 306 are stacked and combined in sequence, wherein a chamber space 307 is required to be formed between the suspension plate 303A and the resonant plate 302, and the chamber space 307 may be formed by filling a gap between the resonant plate 302 and the outer frame 303B of the piezoelectric actuator 303 with a material, for example: the conductive adhesive, but not limited to, can maintain a certain depth between the resonator plate 302 and the suspension plate 303a to form the cavity space 307, so that the gas can flow more rapidly, and the contact interference between the suspension plate 303a and the resonator plate 302 is reduced due to the appropriate distance, so that the noise generation can be reduced, although in another embodiment, the thickness of the conductive adhesive filled in the gap between the resonator plate 302 and the outer frame 303b of the piezoelectric actuator 303 can be reduced due to the height increase of the outer frame 303b of the piezoelectric actuator 303, so that the assembly of the whole structure of the actuating pump is not indirectly affected by the filling material of the conductive adhesive due to the hot pressing temperature and the cooling temperature, and the actual spacing of the cavity space 307 after molding is prevented from being affected by the filling material of the conductive adhesive due to the expansion and contraction factors, but not limited thereto. In addition, the chamber space 307 will affect the delivery effect of the actuator pump 30, so maintaining a fixed chamber space 307 is important to provide stable delivery efficiency of the actuator pump 30.

Thus, in other embodiments of the piezoelectric actuator 303 shown in fig. 4B, the suspension plate 303a may be formed by stamping to extend outwardly a distance that can be adjusted by forming at least one bracket 303c between the suspension plate 303a and the outer frame 303B, so that the surface of the protrusion 303f on the suspension plate 303a and the surface of the outer frame 303B are non-coplanar, and a small amount of filling material is applied to the assembly surface of the outer frame 303B, for example: the piezoelectric actuator 303 is bonded to the fixing portion 302c of the resonant plate 302 by the conductive adhesive in a hot pressing manner, so that the piezoelectric actuator 303 can be assembled and combined with the resonant plate 302, and thus the structure of the cavity space 307 is directly improved by stamping the suspension plate 303a of the piezoelectric actuator 303, the required cavity space 307 can be completed by adjusting the stamping distance of the suspension plate 303a of the piezoelectric actuator 303, the structural design of the cavity space 307 is effectively simplified, and meanwhile, the advantages of simplifying the process, shortening the process time and the like are achieved. In addition, the first insulating sheet 304, the conductive sheet 305, and the second insulating sheet 306 are all frame-type thin sheet bodies, and are sequentially stacked on the piezoelectric actuator 303 to form an integral structure of the actuation pump 30.

In order to understand the output operation manner of the actuating pump 30 for providing gas transmission, please refer to fig. 4C to 4E, please refer to fig. 4C first, the piezoelectric element 303d of the piezoelectric actuator 303 is deformed to drive the suspension plate 303a to displace downward after being applied with a driving voltage, at this time, the volume of the chamber space 307 is increased, a negative pressure is formed in the chamber space 307, so that the gas in the converging chamber 301C is drawn into the chamber space 307, and the resonator 302 is synchronously displaced downward under the influence of the resonance principle, thereby increasing the volume of the converging chamber 301C, and the relationship of the gas in the converging chamber 301C entering the chamber space 307 causes the converging chamber 301C to be in a negative pressure state, so that the gas is sucked into the converging chamber 301C through the inlet hole 301a and the converging slot 301 b; referring to fig. 4D again, the piezoelectric element 303D drives the suspension plate 303a to displace upwards, compressing the chamber space 307, and the resonator plate 302 is displaced upwards by the suspension plate 303a due to resonance, so that the gas in the chamber space 307 is pushed downwards by the synchronization pushing force to be transmitted downwards through the gap 303e, thereby achieving the effect of transmitting the gas; finally, referring to fig. 4E, when the suspension plate 303a returns to the original position, the resonant plate 302 is still displaced downward due to inertia, and the resonant plate 302 moves the gas in the compression chamber space 307 toward the gap 303E, and lifts the volume in the converging chamber 301C, so that the gas can be continuously converged in the converging chamber 301C through the inlet hole 301a and the converging slot 301b, and the actuating pump 30 can continuously enter the flow channel formed by the inlet hole 301a and the resonant plate 302 to generate a pressure gradient by continuously repeating the steps of providing the gas transmission operation by the actuating pump 30 shown in fig. 4C to 4E, and then the gas is transmitted downward through the gap 303E, so that the gas flows at a high speed, thereby achieving the operation of transmitting the gas output by the actuating pump 30.

The actuating pump 30 may be a micro-blower type piezoelectric actuating element 42, and referring to fig. 9A and 9B, the piezoelectric actuating element 42 includes an air jet plate 421, a chamber frame 422, an actuating body 423, an insulating frame 424, and a conductive frame 425. The air hole plate 421 is made of flexible material, and has a suspension plate 4210 and a hollow hole 4211. The suspension 4210 is a flexible and vibratable sheet structure, and the shape and size thereof substantially correspond to the inner edge of the air guide assembly carrying area 415, but not limited thereto, and the shape of the suspension 4210 may be one of square, circular, oval, triangular and polygonal; a hollow hole 4211 is formed through the center of the suspension 4210 for allowing gas to flow.

The cavity frame 422 is stacked on the air hole plate 421, and its shape corresponds to the air hole plate 421. The actuating body 423 is stacked on the cavity frame 422, and defines a resonant cavity 426 with the cavity frame 422 and the suspension 4210. The insulating frame 424 is stacked on the actuating body 423, and its appearance is similar to that of the cavity frame 422. The conductive frame 425 is stacked on the insulating frame 424, the appearance of the conductive frame 425 is similar to that of the insulating frame 424, the conductive frame 425 is provided with a conductive pin 4251 and a conductive electrode 4252, the conductive pin 4251 extends outwards from the outer edge of the conductive frame 425, and the conductive electrode 4252 extends inwards from the inner edge of the conductive frame 425. In addition, the actuator 423 further includes a piezoelectric carrier 4231, a tuning resonator 4232, and a piezoelectric plate 4233. The piezoelectric carrier 4231 is carried and stacked on the cavity frame 422. The tuning resonant plate 4232 is stacked on the piezoelectric carrier 4231. The piezoelectric plate 4233 is supported and stacked on the tuning resonance plate 4232. The tuning resonant plate 4232 and the piezoelectric plate 4233 are accommodated in the insulating frame 424, and the piezoelectric plate 4233 is electrically connected by the conductive electrode 4252 of the conductive frame 425. The piezoelectric carrier 4231 and the tuning resonance plate 4232 are made of conductive materials, the piezoelectric carrier 4231 has a piezoelectric pin 4234, the piezoelectric pin 4234 and the conductive pin 4251 are connected to a driving circuit (not shown) on the driving circuit board 43 to receive driving signals (driving frequency and driving voltage), the driving signals are formed into a loop by the piezoelectric pin 4234, the piezoelectric carrier 4231, the tuning resonance plate 4232, the piezoelectric plate 4233, the conductive electrode 4252, the conductive frame 425 and the conductive pin 4251, and the insulating frame 424 blocks the conductive frame 425 from the actuating body 423 to avoid short circuit, so that the driving signals are transmitted to the piezoelectric plate 4233. Upon receiving the driving signal (driving frequency and driving voltage), the piezoelectric plate 4233 deforms due to the piezoelectric effect, and further drives the piezoelectric carrier 4231 and the tuning resonance plate 4232 to generate reciprocating flexural vibration.

As described above, the adjusting resonant plate 4232 is located between the piezoelectric plate 4233 and the piezoelectric carrier 4231, and can adjust the vibration frequency of the piezoelectric carrier 4231 as a buffer therebetween. Basically, the thickness of the tuning resonant plate 4232 is greater than the thickness of the piezoelectric carrier 4231, and the thickness of the tuning resonant plate 4232 is variable, thereby adjusting the vibration frequency of the actuator 423.

Referring to fig. 9A, 9B and 10A, the air hole plate 421, the cavity frame 422, the actuating body 423, the insulating frame 424 and the conductive frame 425 are sequentially stacked and positioned in a bearing area, so that the piezoelectric actuating element 42 is positioned in the bearing area, and is fixedly supported and positioned at the bottom, so that a gap 4212 is defined between the suspension plate 4210 and the inner edge of the bearing area for air circulation.

Referring to fig. 10A, an airflow chamber 427 is formed between the air hole plate 421 and the bottom surface of the loading area. The gas flow chamber 427 is communicated with the resonance chamber 426 among the actuating body 423, the cavity frame 422 and the suspension 4210 through the hollow hole 4211 of the gas injection hole plate 421, and the vibration frequency of the gas in the resonance chamber 426 is controlled to be close to the same as the vibration frequency of the suspension 4210, so that the helmholtz resonance effect (Helmholtz resonance) is generated between the resonance chamber 426 and the suspension 4210, and the gas transmission efficiency is improved.

Referring to fig. 10B, when the piezoelectric plate 4233 moves away from the bottom surface of the bearing area, the piezoelectric plate 4233 drives the suspension plate 4210 of the air hole plate 421 to move away from the bottom surface of the bearing area, so that the volume of the air flow chamber 427 is rapidly expanded, the internal pressure thereof is reduced to form negative pressure, and the air outside the piezoelectric actuation element 42 is sucked into the resonance chamber 426 through the air gap 4212 and enters the resonance chamber 426 through the hollow hole 4211, so that the air pressure in the resonance chamber 426 is increased to generate a pressure gradient; as shown in fig. 10C, when the piezoelectric plate 4233 drives the suspension plate 4210 of the air hole plate 421 to move toward the bottom surface of the bearing area, the gas in the resonance chamber 426 flows out rapidly through the hollow hole 4211, presses the gas in the gas flow chamber 427, and causes the converged gas to be ejected into the bottom through hole of the bearing area rapidly and in large quantity in an ideal gas state approaching bernoulli's law. Accordingly, by repeating the operations of fig. 10B and 10C, the piezoelectric plate 4233 is vibrated in a reciprocating manner, and the gas is guided to enter the resonant chamber 426 again by the fact that the internal air pressure of the resonant chamber 426 after the air is exhausted is lower than the equilibrium air pressure according to the principle of inertia, so that the vibration frequency of the gas in the resonant chamber 426 is controlled to be close to the same as the vibration frequency of the piezoelectric plate 4233, and a helmholtz resonance effect is generated, so that high-speed and mass transmission of the gas is realized.

As shown in fig. 2A, 5D and 13, the gas detection module 4 is disposed in the main body 1 and corresponds to the detection gas inlet 14 and the detection gas outlet 15, so as to detect the gas in the surrounding environment of the user to obtain gas detection data; the gas detection module 4 comprises a control circuit board 4a, a gas detection main body 4b, a microprocessor 4c, a communicator 4d and a power supply unit 4e; the power supply unit 4e provides a power source for starting the gas detection main body 4b, so that the gas detection main body 4b detects the gas introduced from the outside of the main body 1 to obtain gas detection data, and the power supply unit 4e can be electrically connected with an external power supply device 5 for charging through wired transmission or wireless transmission; the microprocessor 4c receives the gas detection data, performs operation to control the blower 3 to perform the operation of cleaning the gas in the on or off state, and the communicator 4d receives the gas detection data from the microprocessor 4c and transmits the gas detection data to an external device 6, so that the external device 6 obtains a message and a notification alarm of the gas detection data. The power supply unit 4e may include a battery having a power storage capacity of 2 to 3000mAh, and requires only 5 hours of charging time, and is operated for 8 hours. The external device 6 is a mobile device or a cloud processing device.

As shown in fig. 5A to 5C, fig. 6A to 6B, fig. 7, and fig. 8A to 8B, the gas detecting body 4B includes a base 41, a piezoelectric actuator 42, a driving circuit board 43, a laser component 44, a particle sensor 45, and a cover 46. The base 41 has a first surface 411, a second surface 412, a laser setting area 413, an air inlet channel 414, an air guide component carrying area 415, and an air outlet channel 416, wherein the first surface 411 and the second surface 412 are two surfaces disposed opposite to each other. The laser placement area 413 is hollowed out from the first surface 411 toward the second surface 412. An air inlet trench 414 is recessed from the second surface 412 and is adjacent to the laser placement region 413. The air inlet channel 414 has an air inlet 414a, which is connected to the outside of the base 41 and corresponds to the air inlet frame 461a of the outer cover 46, and two side walls penetrate through a light-transmitting window 414b to communicate with the laser setting area 413. Therefore, the first surface 411 of the base 41 is covered by the outer cover 46, and the second surface 412 is covered by the driving circuit board 43, so that the air inlet channel 414 defines an air inlet path (as shown in fig. 11A).

As shown in fig. 6A to 6B, the air guide component carrying area 415 is formed by recessing the second surface 412, and is communicated with the air inlet channel 414, and penetrates through a vent hole 415a at the bottom surface. The air outlet groove 416 has an air outlet 416a, and the air outlet 416a is disposed corresponding to the air outlet frame 461b of the outer cap 46. The air outlet groove 416 includes a first section 416b formed by recessing the first surface 411 corresponding to the vertical projection area of the air guide component carrying area 415, and a second section 416c formed by hollowing the first surface 411 to the second surface 412 in an area extending from the vertical projection area of the non-air guide component carrying area 415, wherein the first section 416b is connected to the second section 416c to form a step, the first section 416b of the air outlet groove 416 is communicated with the air vent 415a of the air guide component carrying area 415, and the second section 416c of the air outlet groove 416 is communicated with the air outlet vent 416 a. Therefore, when the first surface 411 of the base 41 is covered by the cover 46 and the second surface 412 is covered by the driving circuit board 43, the air outlet channel 416 defines an air outlet path (as shown in fig. 11B to 11C).

As shown in fig. 5C and 7, the laser module 44 and the particle sensor 45 are both disposed on the driving circuit board 43 and are disposed in the base 41, and the driving circuit board 43 is omitted in fig. 7 for clarity of explanation of the positions of the laser module 44 and the particle sensor 45 and the base 41. Referring again to fig. 5C, 6B, 7 and 12, the laser assembly 44 is accommodated in the laser-disposed region 413 of the base 41, and the particle sensor 45 is accommodated in the air-intake channel 414 of the base 41 and aligned with the laser assembly 44. In addition, the laser component 44 corresponds to a light-transmitting window 414b, and the light-transmitting window 414b allows the laser light emitted by the laser component 44 to pass through, so that the laser light irradiates into the air inlet groove 414. The path of the light beam emitted from the laser component 44 passes through the light-transmitting window 414b and is orthogonal to the air-inlet channel 414. The laser component 44 emits a light beam into the air inlet groove 414 through the light-transmitting window 414b, the suspended particles in the air inlet groove 414 are irradiated, when the light beam contacts the suspended particles, the light beam is scattered and generates a projection light spot, and the particle sensor 45 receives the projection light spot generated by scattering to calculate so as to obtain the related information of the particle size and concentration of the suspended particles in the air. Wherein the suspended particles contained in the gas contain bacteria and viruses. Wherein the particulate sensor 45 is a PM2.5 sensor, and is capable of detecting suspended particulate matter at PM1, PM2, and PM10 levels.

As shown in fig. 8A and 8B, the piezoelectric actuating element 42 is accommodated in the air guide component carrying area 415 of the base 41, the air guide component carrying area 415 is square, four corners of the air guide component carrying area 415 are provided with a positioning bump 415B, and the piezoelectric actuating element 42 is disposed in the air guide component carrying area 415 through the four positioning bumps 415B. In addition, as shown in fig. 6A, 6B, 11B and 11C, the air guide component carrying area 415 is communicated with the air inlet groove 414, and when the piezoelectric actuating element 42 is actuated, the air in the air inlet groove 414 is drawn into the piezoelectric actuating element 42, and the air is introduced into the air outlet groove 416 through the air vent 415a of the air guide component carrying area 415.

As shown in fig. 5B and 5C, the driving circuit board 43 is covered and attached to the second surface 412 of the base 41. The laser component 44 is disposed on the driving circuit board 43 and electrically connected to the driving circuit board 43. The particle sensor 45 is also disposed on the driving circuit board 43 and electrically connected to the driving circuit board 43. The outer cover 46 covers the base 41, is attached to the first surface 411 of the base 41, and has a side plate 461. The side plate 461 has an inlet frame 461a and an outlet frame 461b. As also shown in fig. 5A, when the outer cover 46 covers the base 41, the air inlet frame port 461A corresponds to the air inlet port 414a (shown in fig. 11A) of the base 41, and the air outlet frame port 461b corresponds to the air outlet port 416a (shown in fig. 11C) of the base 41.

The piezoelectric actuation element 42 of the gas detection module 4 is identical to the micro-type piezoelectric actuation element 42 of the blower described in the paragraphs [ 0022 ] to [ 0027 ] and the output operation mode of gas transmission is identical, and the output operation mode will not be described again.

As shown in fig. 11A, the gas enters through the inlet frame 461A of the outer cover 46, enters the inlet channel 414 of the base 41 through the inlet port 414a, and flows to the position of the particle sensor 45. As shown in fig. 11B, the piezoelectric actuator 42 is continuously driven to suck the gas in the air inlet path, so that the external gas is quickly introduced and stably circulated and passes through the upper portion of the particle sensor 45, at this time, the laser component 44 emits the light beam into the air inlet channel 414 through the light-transmitting window 414B, the air inlet channel 414 irradiates the suspended particles contained therein through the gas above the particle sensor 45, when the irradiated light beam contacts the suspended particles, the scattered light beam is scattered and generates a projected light spot, the particle sensor 45 receives the projected light spot generated by the scattering to calculate to obtain the related information of the particle size and concentration of the suspended particles contained in the gas, and the gas above the particle sensor 45 is continuously driven and transmitted by the piezoelectric actuator 42 to be introduced into the air vent 415a of the air guide component carrying area 415 and enter the first area 416B of the air outlet channel 416. Finally, as shown in fig. 11C, after the gas enters the first section 416b of the gas outlet channel 416, the gas in the first section 416b is pushed to the second section 416C and finally is discharged through the gas outlet port 416a and the gas outlet frame port 461b, because the piezoelectric actuator 42 continuously transmits the gas into the first section 416b.

Referring to fig. 12 again, the base 41 further includes a light trapping region 417, the light trapping region 417 is hollowed out from the first surface 411 to the second surface 412 and corresponds to the laser setting region 413, and the light trapping region 417 passes through the light transmitting window 414b to enable the light beam emitted by the laser component 44 to be projected therein, the light trapping region 417 is provided with a slant light trapping structure 417a, and the light trapping structure 417a corresponds to the path of the light beam emitted by the laser component 44; in addition, the optical trap structure 417a makes the projection beam emitted by the laser component 44 reflected in the optical trap area 417 in the inclined plane structure, so as to avoid the reflection of the beam to the position of the particle sensor 45, and maintain an optical trap distance D between the position of the projection beam received by the optical trap structure 417a and the light-transmitting window 414b, so as to avoid the distortion of the detection accuracy caused by the direct reflection of excessive stray light back to the position of the particle sensor 45 after the projection beam is reflected on the optical trap structure 417 a.

With further reference to fig. 5C and 12, the gas detection module 4 of the present invention is configured to detect not only particles in a gas, but also characteristics of the introduced gas, such as formaldehyde, ammonia, carbon monoxide, carbon dioxide, oxygen, ozone, etc. Therefore, the gas detection module 4 further includes a first volatile organic compound sensor 47a, where the first volatile organic compound sensor 47a is positioned and electrically connected to the driving circuit board 43 and is accommodated in the gas outlet groove 416, and is configured to detect the gas guided out of the gas outlet path, so as to detect the concentration or the characteristic of the volatile organic compound contained in the gas outlet path. Alternatively, the gas detection module 4 further includes a second volatile organic compound sensor 47b, where the second volatile organic compound sensor 47b is positioned and electrically connected to the driving circuit board 43, and the second volatile organic compound sensor 47b is accommodated in the light trapping region 417, and is configured to control the concentration or the characteristic of the volatile organic compound contained in the gas introduced into the light trapping region 417 through the light-transmitting window 414b and the air inlet path of the air inlet channel 414.

As can be seen from the above description, the micro gas detection cleaning device provided in this case is based on the gas detection data detected by the gas detection main body 4b of the gas detection module 4, the microprocessor 4c receives the gas detection data to perform operation processing, and accordingly controls the blower 3 to perform the operation of starting up the cleaning gas, meanwhile the communicator 4d receives the gas detection data of the microprocessor 4c and transmits the gas detection data to the external device 6, so as to enable the external device 6 to obtain a message and a notification alarm of the gas detection data, and perform the operation of starting up the blower 3 to guide the gas of the surrounding environment of the user to be introduced through the gas inlet 11, filtering and purifying by the purification module 2, finally leading out purified gas from the gas outlet 12 to approach an area of the user, wherein the optimal volume of the area is 25 cm multiplied by 35 cm, namely the effective wind flow distance of the purified gas for starting the operation of the wind guide fan 3 is 20 cm to 40 cm, the effective area of the obtained purified gas is 20 cm multiplied by 40 cm, which is close to the effective area of a user, so that the user can breathe clean purified gas, and the user carries the miniature gas detection cleaning device, thereby being capable of immediately solving the air quality problem of the surrounding environment of the user.

In summary, the micro gas detection cleaning device provided by the present disclosure is portable for users, and comprises a body, a purification module, a blower and a gas detection module, wherein the gas detection module detects the gas in the surrounding environment of the user to obtain gas detection data, so as to control the blower to perform starting operation, so as to guide the gas in the surrounding environment of the user to enter the body, filter and purify the gas through the purification module, and finally derive the benefit of the purified gas approaching the area of the user, thereby being capable of solving the air quality problem in the surrounding environment of the user in real time, and having great industrial applicability.

The present application is modified in a manner that would be apparent to one of ordinary skill in the art, but not as protected by the accompanying claims.

[ symbolic description ]

1: body

11: air inlet

12: air outlet

13: gas flow passage

14: detecting air inlet

15: detection gas outlet

16: buckle ear

2: purification module

2a: filter screen

2b: photo catalyst

2c: ultraviolet lamp

2d: nano light pipe

2e: electrode wire

2f: dust collecting plate

2g: boosting power supply

2h: electric field upper protective net

2i: adsorption filter screen

2j: high-voltage discharge electrode

2k: electric field lower protective net

3: air guide machine

30: actuating pump

301: inlet plate

301a: inlet orifice

301b: bus bar groove

301c: converging chamber

302: resonant sheet

302a: hollow hole

302b: a movable part

302c: fixing part

303: piezoelectric actuator

303a: suspension plate

303b: outer frame

303c: support frame

303d: piezoelectric element

303e: gap of

303f: convex part

304: first insulating sheet

305: conductive sheet

306: second insulating sheet

307: chamber space

4: gas detection module

4a: control circuit board

4b: gas detection body

41: base seat

411: a first surface

412: a second surface

413: laser arrangement region

414: air inlet groove

414a: air inlet

414b: light-transmitting window

415: bearing area of air guide assembly

415a: vent hole

415b: positioning protruding block

416: air outlet groove

416a: air outlet port

416b: a first section

416c: a second interval

417: light trap area

417a: light trap structure

42: piezoelectric actuator element

421: air jet hole sheet

4210: suspension tablet

4211: hollow hole

4212: void space

422: cavity frame

423: actuating body

4231: piezoelectric carrier plate

4232: adjusting a resonant panel

4233: piezoelectric plate

4234: piezoelectric pin

424: insulating frame

425: conductive frame

4251: conductive pin

4252: conductive electrode

426: resonant cavity

427: airflow chamber

43: driving circuit board

44: laser assembly

45: particle sensor

46: outer cover

461: side plate

461a: air inlet frame opening

461b: air outlet frame opening

47a: first volatile organic compound sensor

47b: second volatile organic compound sensor

4c: microprocessor

4d: communication device

4e: power supply unit

5: power supply device

6: external device

D: distance of light trap

L: length of

W: width of (L)

H: height of (1)

Claims

1. A miniature gas detection cleaning device, comprising:

the body is provided with at least one air inlet, at least one air outlet, a detection air inlet and a detection air outlet, wherein the air inlet, the air outlet, the detection air inlet and the detection air outlet are respectively independent channel structures, and a gas flow channel is arranged between the air inlet and the air outlet;

a purifying module arranged in the gas flow passage of the body;

the air guide fan is arranged in the air flow channel of the body and is adjacent to one side of the purification module, guide air is guided into the air guide fan through the air inlet to be filtered and purified by the purification module, and finally, the guide air is guided out of the air outlet;

the gas detection module is arranged in the body and corresponds to the detection air inlet and the detection air outlet, is used for detecting gas to obtain gas detection data, and externally transmits the gas detection data;

The gas detection module comprises a gas detection main body, and the gas is detected to be led in from the outside of the main body so as to obtain gas detection data, wherein the gas detection main body comprises:

a base having a first surface, a second surface opposite to the first surface;

a laser setting area hollowed out from the first surface towards the second surface;

the air inlet groove is formed in a recessed mode from the second surface and is adjacent to the laser setting area, the air inlet groove is provided with an air inlet opening, and two side walls penetrate through a light transmission window and are communicated with the laser setting area;

the air guide component bearing area is concavely formed from the second surface and communicated with the air inlet groove, and penetrates through a vent hole on the bottom surface, and four corners of the air guide component bearing area are provided with positioning protruding blocks; and

the air outlet groove is recessed from the first surface corresponding to the bottom surface of the air guide component bearing area, is formed by hollowing out the first surface towards the second surface in the area of the first surface not corresponding to the air guide component bearing area, is communicated with the air vent and is provided with an air outlet port;

the outer cover covers the first surface of the base and is provided with a side plate, the positions of the side plate corresponding to the air inlet opening and the air outlet opening of the base are respectively provided with an air inlet frame opening and an air outlet frame opening, the air inlet frame opening corresponds to the detection air inlet of the body, and the air outlet frame opening corresponds to the detection air outlet of the body;

The air guide fan is controlled to start according to the gas detection data detected by the gas detection module so as to guide the gas to be guided into the air guide fan through the air inlet to be filtered and purified by the purification module, and finally the purified gas is guided out of the air outlet to approach to an area of a user.

2. The micro gas detection purge apparatus according to claim 1, wherein the purge module is a filter unit comprising a filter through which the introduced gas is purged.

3. The micro gas detection cleaning device of claim 2, wherein the filter is one of an electrostatic filter, an activated carbon filter, and a high efficiency filter.

4. The micro gas detection cleaning device as claimed in claim 2, wherein the filter screen is coated with a layer of cleaning factor containing chlorine dioxide to inhibit viruses and bacteria in the air.

5. The micro gas detection cleaning device as claimed in claim 2, wherein the filter screen is coated with a herbal protective coating layer extracted from ginkgo and japanese sumac to form a herbal protective anti-allergic filter screen.

6. The micro gas detection and cleaning device as claimed in claim 2, wherein the filter screen is coated with a silver ion to inhibit viruses and bacteria in the air.

7. The micro gas detection and purification device as claimed in claim 1, wherein the purification module is a photocatalyst unit comprising a photocatalyst and an ultraviolet lamp, and the photocatalyst is decomposed by irradiation of the ultraviolet lamp and introduced into the gas for filtration and purification.

8. The micro gas detection and cleaning apparatus as claimed in claim 1, wherein the cleaning module is a photo-plasma unit including a nano light pipe through which the gas is irradiated to decompose volatile organic gases contained in the gas so as to clean the introduced gas.

9. The micro gas detection and purification device as claimed in claim 1, wherein the purification module is a negative ion unit comprising at least one electrode wire, at least one dust collecting plate and a booster power supply, wherein particles contained in the introduced gas are adsorbed on the dust collecting plate by high-voltage discharge of the electrode wire, so as to filter and purify the introduced gas.

10. The micro gas detection and cleaning apparatus of claim 1, wherein the cleaning module is a plasma unit comprising an electric field upper shield, an adsorption screen, a high voltage discharge electrode, an electric field lower shield, and a booster power supply for providing the high voltage discharge and the high voltage discharge to generate a high voltage plasma column with plasma, and decomposing viruses or bacteria in the introduced gas by the plasma.

11. The micro gas detection cleaning device of claim 1, wherein the air guide is a fan.

12. The micro gas detection and cleaning device of claim 1, wherein the air guide is an actuating pump.

13. The micro gas detection purge apparatus according to claim 12, wherein the actuation pump comprises:

the flow inlet plate is provided with at least one flow inlet hole, at least one bus bar groove and a bus bar chamber, wherein the flow inlet hole is used for introducing the gas, the flow inlet hole correspondingly penetrates through the bus bar groove, and the bus bar groove is converged to the bus bar chamber, so that the gas introduced by the flow inlet hole can be converged to the bus bar chamber;

the resonance plate is connected to the flow inlet plate and is provided with a hollow hole, a movable part and a fixed part, wherein the hollow hole is positioned at the center of the resonance plate and corresponds to the converging chamber of the flow inlet plate, the movable part is arranged at the periphery of the hollow hole and in a region opposite to the converging chamber, and the fixed part is arranged at the peripheral part of the resonance plate and is adhered to the flow inlet plate; and

a piezoelectric actuator coupled to the resonator plate and disposed correspondingly;

when the piezoelectric actuator is driven, the gas is led in from the inlet hole of the inlet plate, collected into the converging chamber through the converging slot and then flows through the hollow hole of the resonant plate, and the piezoelectric actuator and the movable part of the resonant plate generate resonance to transmit the gas.

14. The micro gas detection purge apparatus according to claim 13, wherein the piezoelectric actuator comprises:

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

an outer frame surrounding the outer side of the suspension plate;

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

the piezoelectric element is provided with a side length which is smaller than or equal to the side length of a suspension plate of the suspension plate, and is attached to one surface of the suspension plate and used for applying voltage to drive the suspension plate to vibrate in a bending way.

15. The micro gas sensor as claimed in claim 13, wherein the actuator pump further comprises a first insulating sheet, a conductive sheet and a second insulating sheet, wherein the inflow plate, the resonant sheet, the piezoelectric actuator, the first insulating sheet, the conductive sheet and the second insulating sheet are stacked in sequence.

16. The micro gas detection purge apparatus according to claim 13, wherein the piezoelectric actuator comprises:

an outer frame surrounding the outer side of the suspension plate;

At least one bracket connected between the suspension plate and the outer frame to provide elastic support for the suspension plate, form one surface of the suspension plate and one surface of the outer frame into non-coplanar structure, and maintain one cavity space between one surface of the suspension plate and the resonance plate; and

17. The miniature gas detection cleaning apparatus of claim 1, wherein the gas detection module comprises:

a control circuit board;

the microprocessor receives the gas detection data for operation treatment and controls the air guide machine to start or stop;

a communicator for receiving the gas detection data of the microprocessor; and

a power supply unit for providing a start operation power supply for the gas detection main body;

the gas detection main body, the microprocessor, the communicator and the power supply unit are packaged on the control circuit board and are electrically connected integrally.

18. The micro gas detection cleaning device as claimed in claim 1, wherein the main body has a button for being worn on the user.

19. The miniature gas detection cleaning device of claim 1, wherein the gas detection body further comprises:

the piezoelectric actuating element is accommodated in the bearing area of the air guide component;

a driving circuit board, the cover is attached to the second surface of the base;

the laser component is positioned and arranged on the driving circuit board and is electrically connected with the driving circuit board, is correspondingly accommodated in the laser setting area, and a transmitted light beam path passes through the light transmission window and forms an orthogonal direction with the air inlet groove; and

the particle sensor is positioned and arranged on the driving circuit board, is electrically connected with the driving circuit board, and is correspondingly accommodated in the position of the air inlet groove in the orthogonal direction of the beam path projected by the laser component so as to detect particles passing through the air inlet groove and irradiated by the beam projected by the laser component;

the first surface of the base covers the outer cover, the second surface covers the driving circuit board, so that the air inlet groove defines an air inlet path, the air outlet groove defines an air outlet path, the piezoelectric actuating element is used for accelerating and guiding air outside the detection air inlet of the body to enter the air inlet path defined by the air inlet groove from the air inlet frame opening, the air passes through the particle sensor to detect the concentration of particles in the air, the air is guided by the piezoelectric actuating element, is discharged into the air outlet path defined by the air outlet groove from the air outlet frame opening, and finally is discharged from the air outlet frame opening to the detection air outlet of the body.

20. The micro gas detection cleaning apparatus as claimed in claim 19, wherein the base further comprises a light trapping region hollowed out from the first surface toward the second surface and corresponding to the laser setting region, the light trapping region being provided with a light trapping structure having an inclined conical surface, the light trapping region being set corresponding to the beam path.

21. The micro gas detection cleaning apparatus of claim 20, wherein the light trap structure receives the projection light source at a light trap distance from the light-transmitting window.

22. The micro gas detection cleaning apparatus of claim 19, wherein the particulate sensor is a PM2.5 sensor.

23. The micro gas detection purge apparatus according to claim 12, wherein the actuator pump is a piezoelectric actuator in the form of a blower.

24. The micro gas detection cleaning apparatus of claim 19 or 23, wherein the piezoelectric actuation element comprises:

the air jet hole sheet comprises a suspension sheet and a hollow hole, the suspension sheet can vibrate in a bending mode, and the hollow hole is formed in the center of the suspension sheet;

a cavity frame bearing and overlapping on the suspension sheet;

The actuating body is loaded and overlapped on the cavity frame to receive voltage so as to generate reciprocating bending vibration, and comprises a piezoelectric carrier plate, an adjusting resonance plate and a piezoelectric plate, wherein the piezoelectric carrier plate is loaded and overlapped on the cavity frame, the adjusting resonance plate is loaded and overlapped on the piezoelectric carrier plate, and the piezoelectric plate is loaded and overlapped on the adjusting resonance plate so as to receive voltage so as to drive the piezoelectric carrier plate and the adjusting resonance plate to generate reciprocating bending vibration;

an insulating frame, bearing and overlapping on the actuating body; and

the conducting frame is arranged on the insulating frame in a bearing and stacking mode;

wherein, the air hole sheet is fixedly arranged and supported to define a gap around the outside of the air hole sheet for the gas to circulate, and a gas flow chamber is formed among the bottoms of the air hole sheet, and a resonance chamber is formed among the actuating body, the cavity frame and the suspension sheet, and the actuating body is driven to drive the air hole sheet to generate resonance, so that the suspension sheet of the air hole sheet generates reciprocating vibration displacement to attract the gas to enter the gas flow chamber through the gap and then be discharged, thereby realizing the transmission flow of the gas.

25. The apparatus of claim 19, further comprising a first volatile organic compound sensor positioned and electrically connected to the driving circuit board and disposed in the gas outlet channel for detecting the gas guided by the gas outlet path.

26. The micro gas detection and cleaning device of claim 20, further comprising a second volatile organic compound sensor positioned and electrically connected to the driving circuit board and accommodated in the light trapping region for detecting the gas introduced into the light trapping region through the light-transmitting window and the air inlet path of the air inlet channel.

27. The micro-gas detection and cleaning device according to claim 1, wherein the body has a length of between 60 and 120 mm, a width of between 30 and 90 mm, and a height of between 23 and 67 mm.

28. The micro-gas detection and cleaning device according to claim 1, wherein the body has a length of 80 mm to 100 mm, a width of 60 mm to 70 mm, and a height of 35 mm to 55 mm.

29. The micro gas detection cleaning device according to claim 1, wherein the length of the main body is 90 mm, the width is 60 mm, and the height is 45 mm.

30. The micro gas detection cleaning device of claim 1, wherein the weight of the main body is 300g or less.

31. The micro gas detection cleaning device of claim 1, wherein the body has a weight of between 150g and 300 g.

32. The micro gas detection cleaning device of claim 1, wherein the body has a weight of between 100g and 200 g.

33. The micro gas detection and cleaning apparatus of claim 1, wherein the effective air flow distance of the purge gas in the area of the user is 20 to 40 cm.

34. The miniature gas detection cleaning device of claim 33, wherein the effective volume of the purified gas stream of the area of the user is 20 cm x 20 cm to 40 cm x 40 cm.

35. The miniature gas detection cleaning device of claim 33, wherein the optimum volume of purified gas stream for the area of the user is 25 cm x 25 cm to 35 cm x 35 cm.

36. The micro gas detection and cleaning apparatus of claim 17, wherein the communicator transmits the gas detection data to an external device, and the external device obtains a message and a notification alert of the gas detection data.

37. The micro gas detection cleaning device of claim 36, wherein the external device is a mobile device.

38. The micro gas detection purge apparatus as recited in claim 36, wherein the external device is a cloud processing device.

39. The micro gas detection and cleaning apparatus as claimed in claim 17, wherein the power supply unit is electrically connected to a power supply device by wire transmission or wireless transmission to charge and maintain the stored power.