阅读说明：本技术 气体浓度检测装置的防液透气方法 (Liquid-proof and gas-permeable method of gas concentration detection device ) 是由 侯国辉 苏红宏 严杰 陆海明 黄政清 路如旃 覃静 于 2020-11-30 设计创作，主要内容包括：本发明涉及一种气体浓度检测装置的防液透气方法,包括：提供检测装置,所述检测装置包括气体检测传感器；提供至少两块连接件,将所述连接件包覆于所述检测装置的外表面,且相邻所述连接件密封贴合连接形成收纳件以收容所述检测装置,其中,至少一块所述连接件由防水透气材料制成,以使气体能够透入所述收纳件而被所述气体检测传感器所检测。采用本发明防液透气方法后,气体浓度检测装置不仅检测准确性高,而且性能稳定,能够适用水洗、浸泡等不同的使用场景。(The invention relates to a liquid-proof and gas-permeable method of a gas concentration detection device, which comprises the following steps: providing a detection device comprising a gas detection sensor; providing at least two connecting pieces, coating the connecting pieces on the outer surface of the detection device, and connecting the connecting pieces adjacent to each other in a sealing fit manner to form a containing piece for containing the detection device, wherein at least one connecting piece is made of a waterproof and breathable material, so that gas can penetrate into the containing piece and be detected by the gas detection sensor. After the liquid-proof and gas-permeable method is adopted, the gas concentration detection device is high in detection accuracy, stable in performance and suitable for different use scenes such as washing, soaking and the like.)

1. A liquid-proof and gas-permeable method of a gas concentration detection device is characterized by comprising the following steps:

providing a detection device comprising a gas detection sensor;

providing at least two connecting pieces, coating the connecting pieces on the outer surface of the detection device, and connecting the connecting pieces adjacent to each other in a sealing fit manner to form a containing piece for containing the detection device, wherein at least one connecting piece is made of a waterproof and breathable material, so that gas can penetrate into the containing piece and be detected by the gas detection sensor.

2. The liquid-proof and gas-permeable method of a gas concentration detection apparatus according to claim 1, wherein the connecting member comprises a flexible substrate and a waterproof and gas-permeable film attached to the flexible substrate, and the connecting member is connected by thermocompression bonding of an edge of the flexible substrate;

or the connecting piece is made of a polymer non-hot-melt waterproof breathable material, and the edges of the connecting piece are connected through hot-press bonding;

or the connecting piece is made of metal waterproof and breathable materials, and the edges of the connecting piece are connected through adhesive bonding of adhesive;

or the connecting piece is made of an inorganic ceramic waterproof breathable material, and the edge of the connecting piece is sealed by embedding.

3. The liquid-proof and gas-permeable method of a gas concentration detection apparatus according to claim 1, wherein the detection apparatus further comprises a circuit board, a control module mounted on the circuit board, a communication module connected to the control module, and an energy storage element, and the gas detection sensor is connected to the circuit board and electrically connected to the control module.

4. The liquid-proof and gas-permeable method of a gas concentration detection apparatus according to claim 3, wherein the detection apparatus further comprises a hollow waterproof seal member that houses the circuit board, the control module, the communication module, and the energy storage element, the waterproof seal member being provided with a detection hole in which the gas detection sensor is located.

5. The liquid-proof and gas-permeable method of a gas concentration detection apparatus according to claim 4, wherein the waterproof sealing member includes a potting body covering the circuit board, the control module, the communication module, and the energy storage element are located in the potting body, and the potting body surrounds the gas detection sensor.

6. The liquid-proof and gas-permeable method of the gas concentration detection device according to claim 4, wherein the waterproof sealing member comprises a base and an upper cover detachably connected to the base, the base and the upper cover are closed to form an installation space, the circuit board is located in the installation space, and the detection hole penetrates through the upper cover.

7. The liquid-proof and gas-permeable method of a gas concentration detection apparatus according to claim 6, wherein the waterproof seal further comprises a seal ring surrounding the gas detection sensor, the seal ring being in sealing abutment with the upper cover and the circuit board.

8. The liquid-proof and gas-permeable method of a gas concentration detection apparatus according to claim 3, wherein the detection apparatus further comprises a liquid-proof and gas-permeable cover covering the gas detection sensor, the liquid-proof and gas-permeable cover being hermetically connected to the circuit board, and the liquid-proof and gas-permeable cover being made of the waterproof and gas-permeable material.

9. The liquid-proof air-permeable method of a gas concentration detection apparatus according to claim 8, wherein the waterproof air-permeable material has a thickness of 10 μm to 200 μm, a porosity of 25% to 96%, a pore diameter of 0.1 μm to 0.5 μm, and a moisture permeability of 500g/m²*24h-15000g/m²24h, and the hydrostatic pressure resistance is 100mbar to 2000 mbar.

10. The liquid-proof and gas-permeable method of the gas concentration detection device according to claim 8, wherein the detection device further comprises a potting body covering the circuit board, the control module, the communication module and the energy storage element are located in the potting body, and the potting body surrounds the liquid-proof and gas-permeable cover;

or, the detection device further comprises a sealing box for accommodating the circuit board, the sealing box comprises a hole-shaped mounting hole, and the liquid-proof air-permeable cover is positioned in the mounting hole.

11. The liquid-proof and gas-permeable method for a gas concentration detection apparatus according to any one of claims 1 to 10, wherein the detection apparatus further comprises a temperature sensor for detecting temperature.

Technical Field

The invention relates to the technical field of testing equipment, in particular to a liquid-proof and gas-permeable method of a gas concentration detection device.

Background

When the detecting device is used for detecting the gas concentration, molecules such as water vapor to be measured in the air need to enter the detecting device and be detected by the sensor, and meanwhile, liquid water or solvent needs to be prevented from damaging a circuit part of the detecting device. However, in the conventional detection device, the detection hole is formed in the package casing and serves as a passage for molecules to enter the detection device, so that part of water or solution inevitably enters the electronic device, and normal operation of the electronic device is affected.

Disclosure of Invention

In view of the above, it is necessary to provide a liquid-proof and gas-permeable method for a gas concentration detection device, so as to prevent liquid from entering the detection device when gas such as water vapor penetrates into the detection device.

A liquid-proof and gas-permeable method of a gas concentration detection device comprises the following steps:

providing a detection device comprising a gas detection sensor;

providing at least two connecting pieces, coating the connecting pieces on the outer surface of the detection device, and connecting the connecting pieces adjacent to each other in a sealing fit manner to form a containing piece for containing the detection device, wherein at least one connecting piece is made of a waterproof and breathable material, so that gas can penetrate into the containing piece and be detected by the gas detection sensor.

In one embodiment, the connecting piece comprises a flexible substrate and a waterproof and breathable film attached to the flexible substrate, and the connecting piece is connected through the edge of the flexible substrate in a hot-press bonding mode;

or the connecting piece is made of a polymer non-hot-melt waterproof breathable material, and the edges of the connecting piece are connected through hot-press bonding;

or the connecting piece is made of metal waterproof and breathable materials, and the edges of the connecting piece are connected through adhesive bonding of adhesive;

or the connecting piece is made of an inorganic ceramic waterproof breathable material, and the edge of the connecting piece is sealed by embedding.

In one embodiment, the detection device further comprises a circuit board, a control module mounted on the circuit board, a communication module connected with the control module and an energy storage element, and the gas detection sensor is connected to the circuit board and electrically connected with the control module.

In one embodiment, the detection device further comprises a hollow waterproof sealing member, the waterproof sealing member houses the circuit board, the control module, the communication module and the energy storage element, the waterproof sealing member is provided with a detection hole, and the gas detection sensor is located in the detection hole.

In one embodiment, the waterproof sealing element includes a potting body covering the circuit board, the control module, the communication module and the energy storage element are located in the potting body, and the potting body surrounds the gas detection sensor.

In one embodiment, the waterproof sealing element comprises a base and an upper cover detachably connected to the base, the base and the upper cover are closed to form an installation space, the circuit board is located in the installation space, and the detection hole penetrates through the upper cover.

In one embodiment, the waterproof sealing member further includes a sealing ring surrounding the gas detection sensor, and the sealing ring is in sealing contact with the upper cover and the circuit board.

In one embodiment, the detection device further comprises a liquid-proof and gas-permeable cover covering the gas detection sensor, the liquid-proof and gas-permeable cover is connected with the circuit board in a sealing manner, and the liquid-proof and gas-permeable cover is made of the waterproof and gas-permeable material.

In one embodiment, the waterproof and breathable material has a thickness of 10-200 μm, a porosity of 25-96% and a pore size of 0.1 μm-0.5 μm and a moisture permeability of 500g/m²*24h-15000g/m²24h, and the hydrostatic pressure resistance is 100mbar to 2000 mbar.

In one embodiment, the detection device further comprises a potting body covering the circuit board, the control module, the communication module and the energy storage element are located in the potting body, and the potting body surrounds the liquid-proof and gas-permeable cover;

or, the detection device further comprises a sealing box for accommodating the circuit board, the sealing box comprises a hole-shaped mounting hole, and the liquid-proof air-permeable cover is positioned in the mounting hole.

In one embodiment, the detection device further comprises a temperature sensor for detecting temperature.

In the liquid-proof and gas-permeable method of the gas concentration detection device, the accommodating piece is formed by sealing and jointing at least two connecting pieces, and at least one connecting piece is made of a waterproof and gas-permeable material, so that the accommodating piece is a hollow thin-wall structural piece which is of a bendable flexible structure or a deformation structure at least part of which can be elastically deformed. Therefore, when the detection device is positioned in the accommodating space accommodated in the accommodating piece, the structural stability is good, so that the gas concentration detection device can adapt to scenes such as water washing, soaking and the like. Meanwhile, the accommodating piece can allow gases such as water vapor to pass through and enter the detection device to be detected by the sensor, and can effectively prevent liquid such as liquid water or solvent from passing through, so that the liquid is prevented from entering the detection device to damage an electronic circuit of the detection device. Therefore, the gas concentration detection device provided by the invention has the advantages of high detection accuracy, stable performance and suitability for different use scenes.

Drawings

FIG. 1 is a schematic flow chart of a liquid-proof and gas-permeable method of a gas concentration detection apparatus according to the present invention;

FIG. 2 is a schematic structural view of the gas concentration detection device of the present invention after being accommodated in the accommodating member;

FIG. 3 is a schematic cross-sectional view of the gas concentration detection apparatus of the present invention after being housed in a housing;

FIG. 4 is a schematic cross-sectional view of a circuit board of the gas concentration detection apparatus of the present invention, which is sealed by a potting compound;

FIG. 5 is a schematic cross-sectional view of a circuit board of the gas concentration detection apparatus of the present invention, which is sealed by a base and an upper cover;

FIG. 6 is a schematic structural view of a gas detection sensor of the gas concentration detection apparatus of the present invention covered with a liquid-proof gas-permeable cover;

FIG. 7 is a schematic cross-sectional view of the liquid-proof and gas-permeable cover of the present invention disposed on the gas detection sensor and the circuit board sealed by the potting compound;

FIG. 8 is a schematic cross-sectional view of the liquid-proof and gas-permeable cover of the present invention disposed on the gas detection sensor and the circuit board sealed by the base and the top cover.

In the figure: 10. a receiving member; 11. a connecting member; 20. a detection device; 21. a gas detection sensor; 22. a circuit board; 23. a control module; 24. a communication module; 25. an energy storage element; 26. a temperature sensor; 27. a waterproof seal; 271. pouring colloid; 272. a base; 273. an upper cover; 274. a detection hole; 275. a seal ring; 28. a liquid-proof and breathable cover; 29. a sealing box; 291. and (7) installing holes.

Detailed Description

The following description will further describe the liquid-proof and gas-permeable method of the gas concentration detection device provided by the present invention with reference to the accompanying drawings.

As shown in fig. 1, a schematic flow chart of a liquid-proof and gas-permeable method of a gas concentration detection apparatus provided by the present invention includes:

s1, providing a detection device 20 comprising a gas detection sensor 21;

s2, providing at least two connectors 11, wrapping the connectors 11 on the outer surface of the detection device 20, and sealing and attaching the connectors 11 to form a receptacle 10 to receive the detection device 20, wherein at least one of the connectors 11 is made of a waterproof and breathable material, so that gas can penetrate into the receptacle 10 and be detected by the gas detection sensor 21.

As shown in fig. 2 and 3, the gas concentration detection device 20 is accommodated in the accommodating space of the accommodating part 10, and when the gas concentration detection device is used for detecting the concentration of gas, the gas concentration detection device 20 is accommodated in the accommodating space of the accommodating part 10, the gas can be allowed to pass through and enter the detection device 20 to be detected by the gas detection sensor 21, and meanwhile, liquid such as liquid water or solvent can be prevented from entering the detection device 20 to damage an electronic circuit of the detection device 20, so that the liquid-proof and gas-permeable effects are realized. Therefore, when used for detecting the concentration of water vapor, the environmental humidity can be judged with this as a reference.

Because containing 10 is formed by two piece at least connecting pieces 11 sealed laminating connections, and at least a connecting piece 11 is made by waterproof ventilative material for containing 10 is hollow thin wall structure, and simultaneously, waterproof ventilative material's resistant hydrostatic pressure is 100mbar-2000mbar, therefore, waterproof ventilative material still has excellent intensity, makes containing 10 whole be flexible construction that can buckle or at least part can elastic deformation's deformation structure.

Meanwhile, the thickness of the waterproof and breathable material is 10-200 μm, the porosity is 25-96%, the average pore diameter is 0.1-0.5 μm, the average pore diameter is about 1/5000-1/20000 of water drops, the average pore diameter is 700 times larger than that of water vapor molecules, and the moisture permeability can reach 500g/m²*24h-15000g/m²24h, such that the waterproof and breathable material is capable of allowing gas to permeate therethrough and is effective in blocking the permeation of liquids therethrough.

Therefore, when the detecting device 20 is located in the accommodating space accommodated in the accommodating member 10, the structural stability is good, so that the detecting device 20 can adapt to the scenes of washing, soaking and the like, for example, the detecting device 20 can be integrally put into equipment such as a washing machine for washing.

In one or more embodiments, the receiving members 10 are formed by sealing and attaching the adjacent connecting members 11 by using a hot melting connection, a hot pressing connection, an adhesive bonding connection, an insert fit sealing connection, or the like.

Specifically, when the connecting members 11 are provided in two, the container 10 is formed by folding two connecting members 11 which are oppositely provided, wherein an annular sealing joint surface is formed at the edge of the two connecting members 11, so that the containing space of the container 10 is sealed. When the connecting pieces 11 are provided with three or more than three pieces, the edges of two adjacent connecting pieces 11 form a continuous sealed sealing seam, and a closed containing space is formed after all the connecting pieces 11 are connected with each other. The container 10 can only flow gas molecules through the holes of the waterproof and breathable material used in the connecting member 11, so as to block the penetration of liquid, and maintain the accuracy and reliability of the data detected by the detecting device 20 in the container 10.

In one or more embodiments, the connecting member 11 includes a flexible substrate and a waterproof and breathable film attached to the flexible substrate, and the edges of the adjacent flexible substrates are connected by thermal compression bonding to form a closed receiving space after all the flexible substrates are connected to each other. The connecting member 11 is made of a waterproof and breathable material, and the connecting member 11 is a flexible structural member which can be bent integrally.

Wherein, flexible substrate is used for supporting and fixed waterproof ventilated membrane, and preferably, flexible substrate establishes to flexible materials such as polyester fiber cloth, selects suitable polyester fiber cloth according to different use scenes, and waterproof ventilated membrane is the waterproof ventilative porous material who attaches to polyester fiber cloth, including the waterproof ventilated membrane of TPU, the waterproof ventilated membrane of TPE, the waterproof ventilated membrane of TPR, the waterproof ventilated membrane of PVC, the waterproof ventilated membrane of PU, the waterproof ventilated membrane of PE, the waterproof ventilated membrane of PP, the waterproof ventilated membrane of PTFE etc..

The waterproof breathable film can be prepared by a stretching process, for example, when the PP waterproof breathable film is prepared, 4 parts of polypropylene, 5 parts of calcium carbonate powder and 0.5 part of coupling agent are mixed according to the parts by mass, heated to 230-260 ℃ in an extruder, mixed, extruded, cooled and shaped into a film with the thickness of 60 micrometers, and then the shaped film is stretched in a single direction by 3 times. During unidirectional stretching, because the calcium carbonate powder has no extension performance, nano-scale micropores are formed in the film after stretching, and the waterproof breathable film is obtained.

The waterproof breathable film and the polyester fiber cloth are compounded through the dot matrix hot-pressing roller, wherein the dot matrix density of the dot matrix hot-pressing roller determines the breathability. The dot matrix hot pressing roller engraves salient points on the surface of the metal roller by a machining mode, and the ratio of the dot matrix area to the roller area determines the air permeability. The connecting piece 11 is designed to have different lattice densities according to different ventilation requirements. Preferably, the ratio of the area of the dot matrix to the area of the roller is between 5% and 95%, and a proper roller is selected according to the actual ventilation requirement.

In one or more embodiments, the connecting member 11 is made of a polymer non-heat-fusible waterproof and breathable material, and the edges of the connecting member 11 are connected by thermocompression bonding. Preferably, the connecting member 11 is a waterproof and breathable film made of a polymer non-hot-melt waterproof and breathable material. The connecting pieces 11 are cut into a required shape, the detection device 20 is integrally placed in a space between the two connecting pieces 11, and then the hot melt adhesive is placed between the two connecting pieces 11 to be connected. And when the temperature of the hot-pressing equipment rises to a proper temperature, starting the equipment and performing hot-pressing and heat preservation for a preset time so that the two connecting pieces 11 are connected into a whole in a hot-pressing manner and the joint parts are connected in a sealing and gluing manner through hot melt adhesive.

In one or more embodiments, the connecting member 11 is made of a metal waterproof and breathable material, and the edges of the connecting member 11 are connected by adhesive bonding with an adhesive. Preferably, the connecting member 11 is a waterproof and breathable film made of a metal waterproof and breathable material, the connecting member is cut into a shape of the connecting member 11 by laser cutting equipment, glue is dispensed to the edge of the metal material by glue dispensing equipment, and the detecting device 20 is integrally placed in a space between the two connecting members 11. The connecting piece 11 is attached to the preset position of the equipment and placed into an oven to be cured by glue. Wherein, the selected glue is waterproof glue.

In one or more embodiments, the connection member 11 is made of an inorganic ceramic waterproof and breathable material, and the edges of the connection member 11 are sealed by means of an inlay. Preferably, the connecting member 11 is a waterproof and breathable film made of an inorganic ceramic waterproof and breathable material, the connecting member 11 made of the inorganic ceramic waterproof and breathable material in a prefabricated shape is prepared by a calcination process, and the whole detecting device 20 is placed in a space between the two connecting members 11. Two adjacent connecting pieces 11 are packaged by edge insert sealing to package the detecting device 20 in the receiving member 10.

After the entire detection device 20 is stored in the storage container 10, the detection device 20 can detect a predetermined parameter to know parameter information of the environment in which the detection device for gas concentration is located. The gas detection sensor 21 is used for detecting related molecules to be detected in the ambient gas.

As shown in fig. 2 and 3, the detection device 20 includes a circuit board 22, a control module 23 mounted on the circuit board 22, a communication module 24 connected to the control module 23, and an energy storage element 25, and the gas detection sensor 21 is connected to the circuit board 22 and electrically connected to the control module 23. The control module 23 and the communication module 24 are disposed on the circuit board 22 to process the parameters detected by the gas detection sensor 21, and send the parameters to the host or the terminal device through the communication module 24, so as to facilitate the observation and experience of the user. The communication module 24 can communicate in time, the energy storage element 25 can provide electric energy required by operation for the detection device 20, and the detection device is not interfered by liquid, and has good independent operation stability. Optionally, the circuit board 22 includes a flexible circuit board to adapt to the overall flexible gas concentration detection device, and to adapt to the working environment with bending requirements.

In order to further improve the waterproof effect of the gas concentration detection device, the detection device 20 itself is also subjected to waterproof treatment to improve the operation stability.

In one or more embodiments, the detection device 20 further includes a waterproof seal 27, the waterproof seal 27 receives and seals the circuit board 22, and the control module 23, the communication module 24, and the energy storage element 25 are located within the waterproof seal 27. The waterproof seal member 27 is provided with a detection hole 274, and the gas detection sensor 21 is located in the detection hole 274.

The circuit board 22, the control module 23, the communication module 24 and the energy storage element 25 are all accommodated by the waterproof sealing member 27 to be in the waterproof sealing member 27, so that the contact area with air is reduced, and the contact area between the circuit board 22, the control module 23, the communication module 24, the energy storage element 25 and the like and the accommodating member 10 is reduced. Gas can enter the accommodating space along the containing part 10 and is detected by the gas detection sensor 21 in the detection hole 274, the measurement range is controllable, and the waterproof effect is good.

As shown in fig. 4, other electrical parts of the detection device 20 are waterproofed outside the area where the gas detection sensor 21 is located, to improve the overall waterproof performance. In one or more embodiments, the waterproof sealing member 27 includes a potting body 271 covering the circuit board 22, the control module 23, the communication module 24, and the energy storage element 25 are located in the potting body 271, and the potting body 271 surrounds the gas detection sensor 21. In this embodiment, the glue filling body 271 is shaped and contains the control module 23, the communication module 24 and the energy storage element 25 to isolate water vapor from entering, so that the waterproof effect is good. The colloid 271 can adjust the waterproof area according to the prefabrication requirement, and the processing is convenient.

In one or more embodiments, as shown in fig. 5, the waterproof seal 27 includes a base 272 and an upper cover 273 detachably connected to the base 272, and the base 272 and the upper cover 273 are folded to form an installation space. The circuit board 22 is located in the installation space, and the detection hole 274 penetrates the upper cover 273. In the present embodiment, the waterproof seal 27 is formed by combining a plurality of parts to form a sealed box 29 structure. The circuit board 22, the control module 23, the communication module 24 and the energy storage element 25 are all located in the installation space to reduce the area exposed in the receiving space, and then reduce the area of contact between accessories such as the circuit board 22 and water vapor. The detection hole 274 is provided in the upper cover 273 so that the gas detection sensor 21 can detect gas only through the detection hole 274 located in the upper cover 273, and thus the detection stability is good and the interference is small. Optionally, the top cover 273 and the base 272 are made of a material that is impermeable to water and air, such as plastic, metal, etc. Optionally, the top cover 273 is made of a waterproof and breathable material and the base 272 is made of a waterproof and air-impermeable material to reduce the ingress of excess moisture into the circuit interior.

Further, the waterproof sealing member 27 further includes a sealing ring 275 surrounding the gas detection sensor 21, and the sealing ring 275 is in sealing contact with the upper cover 273 and the circuit board 22. The sealing ring 275 has an annular structure, surrounds the gas detection sensor 21, and is located between the circuit board 22 and the upper cover 273. The sealing ring 275 is connected with the contact surfaces of the circuit board 22 and the upper cover 273 in a squeezing and sealing manner to form a sealing structure, so that moisture is prevented from entering through a gap between the upper cover 273 and the circuit board 22, and the sealing effect is good. Optionally, the minimum inner dimension surrounded by the sealing ring 275 is larger than the outer dimension of the gas detection sensor 21.

In one or more embodiments, as shown in fig. 6, the detection device 20 includes a liquid-proof and gas-permeable cover 28 covering the gas detection sensor 21, the liquid-proof and gas-permeable cover 28 is hermetically connected to the circuit board 22, and the liquid-proof and gas-permeable cover 28 is made of a waterproof and gas-permeable material. In this embodiment, the liquid-proof air-permeable cover 28 is made of a waterproof air-permeable material, which can be made of a polymer material, a polymer non-melting waterproof air-permeable material, a metal waterproof air-permeable material, or an inorganic ceramic waterproof air-permeable material. The liquid-proof and gas-permeable cover 28 covers the gas detection sensor 21 so that the gas detection sensor 21 can detect gas and is waterproof. The open end of the liquid-proof air-permeable cover 28 is hermetically connected with the binding surface of the circuit board 22, so that liquid is prevented from entering the inner space of the liquid-proof air-permeable cover 28, and the working environment stability of the gas detection sensor 21 is ensured. And the circuit board 22, the control module 23, the communication module 24 and the energy storage element 25 which are positioned outside the liquid-proof and air-permeable cover 28 can adopt waterproof treatment to prevent moisture interference.

As shown in fig. 7, in one or more embodiments, the detection device 20 includes a potting body 271 covering the circuit board 22, the control module 23, the communication module 24, and the energy storage element 25 are located in the potting body 271, and the potting body 271 surrounds the liquid-proof and gas-permeable cover 28. In this embodiment, the glue filling body 271 is shaped and encloses the control module 23, the communication module 24 and the energy storage element 25 to prevent water vapor from entering. Optionally, the potting compound 271 surrounds the liquid-proof air-permeable cover 28 and is spaced apart from the liquid-proof air-permeable cover 28 to enlarge the air permeable area of the liquid-proof air-permeable cover 28. Optionally, the glue filling body 271 encloses the annular wall of the liquid-proof and air-permeable cover 28, and the bottom of the liquid-proof and air-permeable cover 28 or the part of the liquid-proof and air-permeable cover 28 beyond the glue filling body 271 is used for ventilation, so that the gas detection sensor 21 detects the ventilation, and the detection efficiency is high.

In one or more embodiments, as shown in fig. 8, the testing device 20 includes a sealing case 29 for housing the circuit board 22, the sealing case 29 includes a hole-shaped mounting hole 291, and the liquid-proof and gas-permeable cover 28 is located in the mounting hole 291. The circuit board 22, the control module 23, the communication module 24 and the energy storage element 25 are all located in the sealing box 29, so that the area exposed in the accommodating space is reduced, and then the area of contact between accessories such as the circuit board 22 and the like and water vapor is reduced. The outer peripheral wall of the liquid-proof and gas-permeable cover 28 is fitted to the hole wall of the mounting hole 291 to reduce or even block the communication between the inner space of the sealed box 29 and the outer space. The bottom of the liquid-proof air-permeable cover 28 or the part of the liquid-proof air-permeable cover 28, which exceeds the colloid 271, is used for ventilation so as to be detected by the gas detection sensor 21, and the detection efficiency is high. Wherein the liquid-proof air-permeable cover 28 is made of a waterproof air-permeable material.

In the above embodiment, the gas detection sensor 21 is used to detect the corresponding molecules to be measured in the air, and the molecules to be measured include water vapor, alcohol, uric acid, gas, and the like. When the gas detection sensor 21 is a humidity capacitance sensor, the detection device 20 is used to detect the air humidity. Alternatively, when the gas detection sensor 21 employs an alcohol sensor, it may be industrially used to measure the concentration of alcohol in an environment or for a traffic police to test drunk driving. Alternatively, when the gas detection sensor 21 is set as a uric acid sensor, it is used to measure the uric acid content in sweat or urine. Accordingly, the gas detection sensor 21 is set as the specific gas detection sensor 21 for concentration monitoring of the specific gas. The gas detection sensor 21 detects gas penetrating through the waterproof and breathable material, so that the detection accuracy is good and the interference of solution is avoided.

In one or more embodiments, the detection device 20 further includes a temperature sensor 26, and the temperature sensor 26 is used for detecting temperature. The temperature sensor 26 is disposed separately from the gas detection sensor 21, wherein the temperature sensor 26 can be packaged in the potting body 271, the sealing box 29 or the waterproof sealing member 27 to detect the temperature of the environment where the detection device 20 is located, and the detected information is output through the communication module 24 to realize networking detection, and the detection parameters are various. It should be noted that the detecting device 20 may further be provided with other sensors to obtain corresponding detecting data, so as to improve the detecting diversity.

In one or more embodiments, the detection device 20 is completely covered with the container 10 made of waterproof and breathable material, which constitutes a miniaturized detection device. The energy storage element 25 can be powered by battery modules such as batteries, the control module 23 is configured with data processing and storing functions, and data transmission is performed through communication modules such as Bluetooth and wireless, so that a small-sized and integrated gas concentration detection device is realized, and long-term temperature and humidity monitoring of a target area is realized.

Moreover, the container 10 is made of a waterproof and breathable material, so that the gas concentration detection device can be applied to washing, soaking and other application scenarios. For example, the gas concentration detection device is used as an intelligent temperature and humidity tag in a wearable device, the tag is sewn with clothes, and the tag can be washed as normal clothes. In addition, the detection device 20 in the label can detect the temperature and humidity in the storage environment where the clothes are located, and can feed back the temperature and humidity to the user terminal, so that the user can conveniently know related information. Alternatively, the gas concentration detection device is used as a wearable device. Thing networking device to make the practical in-process realize wholly preventing liquid ventilative, and in time monitor environmental data, user experience is good.

Other structures and principles of the gas concentration detection device are the same as those of the prior art, and are not described in detail here.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.