Active electrolyzed water molecule unidirectional defogging apparatus having desiccant packs

Abstract

An active electrolyzed water molecule unidirectional defogging apparatus having desiccant packs, comprising a base (20) mounted on an external device (19). The base (20) is internally provided with a through mounting cavity A and a single-side open mounting cavity B. The mounting cavity A and the mounting cavity B are isolated from each other. A unidirectional oxygen discharging and dehumidifying apparatus is arranged in the mounting cavity A, and desiccant packs (22) are arranged in the mounting cavity B. A porous cover plate (23) is arranged at an opening of the mounting cavity B. The unidirectional oxygen discharging and dehumidifying apparatus and the air-permeable porous cover plate (23) are communicated with the internal space of the external device (19).

Description

Active electrolytic water molecule one-way demisting device with desiccant pack Technical Field

[0001] This invention relates to the field of dehumidification devices, and in particular to an active electrolytic water molecule one-way defogging device with a desiccant pack. Background Technology

[0002] Products and equipment with sealed housings containing electronic components, such as smart helmet displays, vehicle lights, monitoring probes, image detection, lidar detection sensors, and marine engineering equipment electrical cabinets, experience internal temperature increases during operation and decreases when not in use. Under external temperature and humidity changes (such as heavy fog or rain), the internal humidity and air pressure of these sealed housings with electronic components may increase due to these temperature and humidity variations. This can lead to fogging, condensation, and even housing expansion and deformation of the transparent face shield or lenses. Such phenomena can cause insulation failure and short circuits in electronic components, and in severe cases, fire or explosion. These risks can result in incalculable serious consequences for operators or personnel approaching these sealed housings or equipment with electronic components, including distorted image signals, poor lighting, and loss of life and property.

[0003] Currently, various sectors in China typically use desiccants or heated fans to dehumidify and reduce internal moisture content in order to solve this problem. However, desiccants have low moisture absorption rates, are not waterproof, and have short lifespans, requiring periodic drying before reuse. If they come into contact with water, they need to be replaced with new desiccants. Heated fans consume high current, require waterproofing, and generate noise, making them difficult to meet the requirements of engineering applications.

[0004] Currently, electrolysis components based on the principle of water electrolysis can cause excessively high oxygen concentrations inside smart helmet displays, vehicle lights, monitoring probes, image detection, and lidar detection sensors. The oxygen atoms or molecules released during electrolysis can cause poor contact and corrosion of internal electrical components and circuits (internal chips, integrated circuits, electronic components, circuits, PI insulation layers, etc.) in an oxygen-rich environment. Continuous electrolysis can lead to excessive accumulation of oxygen concentration inside, posing a risk of spontaneous combustion. Hydrogen accumulation on the cathode side can also pose a risk of hydrogen explosion. Frequent electrical failures also make it difficult to meet users' requirements for reliable operation. Summary of the Invention

[0005] The main technical problem solved by this invention is to provide an active electrolytic water molecule one-way defogging device with a desiccant pack, which has the function of explosively absorbing moisture to quickly reduce its internal humidity and keeping the internal air dry and free from fogging for a long time, with a long-lasting drying effect.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing an active electrolytic water molecule one-way defogging device with a desiccant pack, including a base installed on an external device, wherein the base has a through mounting cavity A and a one-sided open mounting cavity B, the mounting cavity A and the mounting cavity B are isolated from each other, the mounting cavity A is provided with a one-way oxygen dehumidification device, the mounting cavity B is provided with a desiccant pack, the opening of the mounting cavity B is provided with a porous cover plate, and the one-way oxygen dehumidification device and the breathable porous cover plate are connected to the internal space of the external device.

[0007] In a preferred embodiment of the present invention, the desiccant pack is a common desiccant pack or a reversible moisture-absorbing desiccant pack.

[0008] In a preferred embodiment of the present invention, the porous cover plate is provided with a plurality of vent holes.

[0009] In a preferred embodiment of the present invention, the base is provided with a plurality of connecting buckles spaced apart in the circumferential direction.

[0010] In a preferred embodiment of the present invention, the unidirectional oxygen dehumidification device includes a housing threadedly connected to the mounting cavity A. A membrane electrode assembly is provided inside the housing. The membrane electrode assembly divides the airflow channel into an air inlet end and an air outlet end. The air inlet end is provided with a continuously unidirectionally permeable coating membrane, and the air outlet end is provided with an ePTFE microporous breathable protective membrane. An oxygen dehumidification channel is provided on the housing to connect the air inlet end with the outside. The anode side of the membrane electrode assembly faces the air inlet end, and the cathode side of the membrane electrode assembly faces the air outlet end. The air inlet end is connected to the internal space of an external device.

[0011] In a preferred embodiment of the present invention, a PET protective layer with through holes is also bonded to the outer side of the ePTFE microporous breathable protective membrane.

[0012] In a preferred embodiment of the present invention, the membrane electrode assembly includes a conductive carbon paper diffusion layer, a cathode catalyst layer, a proton exchange membrane, an anode catalyst layer, and an anode porous foil mesh arranged sequentially.

[0013] In a preferred embodiment of the present invention, the cathode catalyst layer is a cathode platinum-carbon Pt / C catalyst layer, the proton exchange membrane is a perfluorosulfonic acid proton exchange membrane or a perfluorosulfonic acid proton exchange membrane reinforced with an ePTFE microporous membrane, the anode catalyst layer is an anode platinum-carbon Pt / C catalyst layer, the anode porous foil is an anode platinum-titanium Pt / Ti porous foil, and the housing is further provided with a DC anode conductor and a DC cathode conductor. The DC anode conductor is connected to the anode platinum-titanium Pt / Ti porous foil, and the DC cathode conductor is connected to the conductive carbon paper diffusion layer.

[0014] In a preferred embodiment of the present invention, the housing is further provided with an elastic sealing ring and an insulating sealing element that cooperate with the DC anode conductor and the DC cathode conductor.

[0015] In a preferred embodiment of the present invention, a through-hole cover plate is provided on the exhaust end, and the ePTFE microporous breathable protective membrane is disposed on the end face of the through-hole cover plate.

[0016] The beneficial effects of the present invention are: the active electrolytic water molecule one-way defogging device with desiccant pack of the present invention can absorb water molecules inside the device when the device is working, reduce the humidity inside the device, and continue to absorb moisture and dry the air inside the device after the device is stopped, so that the humidity of the air inside the device is maintained at a very low level.

[0017] This invention relates to an active electrolytic water molecule one-way defogging device with a desiccant pack. When the one-way oxygen dehumidification device is working, it continuously electrolyzes water molecules in the air inside the device, causing the humidity inside the device to decrease rapidly. At the same time, after the device is working, the internal electrical components heat up, causing the internal air pressure to rise. The hot and humid air inside the device is quickly absorbed by the desiccant pack. Meanwhile, the desiccant pack discharges trace amounts of moisture into the device, which is then electrolyzed by the one-way oxygen dehumidification device, ensuring that the desiccant pack can continue to absorb moisture when the device is stopped. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0019] Figure 1 is a schematic diagram of the active electrolytic water molecule one-way defogging device with desiccant pack of the present invention;

[0020] Figure 2 is a right view of Figure 1;

[0021] Figure 3 is a schematic diagram of the unidirectional oxygen dehumidification device;

[0022] Figure 4 is a sectional view along line AA of Figure 3;

[0023] The components in the attached diagram are labeled as follows: 1. Housing, 2. Insulating seal, 3. Elastic sealing ring, 4. Through-hole cover plate, 5. Membrane electrode assembly, 6. ePTFE microporous breathable protective membrane, 7. PET protective layer with through holes, 8. Conductive carbon paper diffusion layer, 9. Cathode catalyst layer, 10. Proton exchange membrane, 11. Anode catalyst layer, 12. Anode porous foil, 13. DC cathode conductor, 14. Continuously unidirectionally permeable coating membrane, 15. DC anode conductor, 16. Oxygen exhaust channel, 17. Air inlet, 18. Air outlet, 19. External equipment, 20. Base, 21. Connecting buckle, 22. Desiccant pack, 23. Porous cover plate. Detailed Implementation

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below. The structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of the present invention, should still fall within the scope of the technical content disclosed in the present invention. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the present invention.

[0025] Please refer to Figures 1 to 4. An active electrolytic water molecule unidirectional defogging device with a desiccant pack includes a base 20 mounted on an external device 19. Multiple connecting clips 21 are spaced apart on the circumference of the base 20. The entire device is mounted on the external device 19 via the connecting clips 21. The external device 19 can be a sealed device with electronic components, such as a smart helmet display, vehicle lights, monitoring probes, image detection, lidar detection sensors, or marine engineering equipment electrical cabinets. The base 20 has a through mounting cavity A and a single-sided open mounting cavity B, which are isolated from each other.

[0026] The mounting cavity B is equipped with a desiccant pack 22, and the opening of the mounting cavity B is provided with a perforated cover plate 23. The one-way oxygen exhaust and dehumidification device and the perforated cover plate 23 are connected to the internal space of the external equipment 19. The perforated cover plate 23 has multiple vent holes. Gas in the internal space enters the mounting cavity B through the perforated cover plate 23, and the desiccant pack 22 can absorb humid air, keeping the air in the external equipment 19 dry.

[0027] Desiccant pack 22 is either a regular desiccant pack or a reversible moisture-absorbing desiccant pack. The reversible moisture-absorbing desiccant pack is a mixture of hygroscopic particulate matter and microparticles of a substance that efficiently absorbs far-infrared radiation energy. The reversible hygroscopic particulate matter includes one or more of the following: reversible desiccant, bentonite, silica aerogel, carbon molecular sieve, carbon aerogel adsorbent, and water-absorbing resin; the microparticles of the substance that efficiently absorbs far-infrared radiation energy include one or more of the following: carbon products, biochar, tourmaline, far-infrared ceramics, zirconium carbide, metal oxides, and silicon carbide. The substance that efficiently absorbs far-infrared radiation energy provides energy for the drying of the reversible hygroscopic particulate matter, removing trace amounts of moisture, so that the mixture of hygroscopic particulate matter and microparticles of the substance that efficiently absorbs far-infrared radiation energy can regain its moisture-absorbing and drying capacity. Common desiccants include magnesium chloride desiccant, silica gel desiccant, calcium chloride desiccant, mineral desiccant, montmorillonite powder desiccant, quicklime powder desiccant, biochemical desiccant, carbon molecular sieve desiccant, chemical fiber desiccant, column-shaped desiccant, and shipping container drying strips, etc.

[0028] The installation cavity A is equipped with a one-way oxygen dehumidification device. The one-way oxygen dehumidification device includes a housing 1 with an airflow channel. A membrane electrode assembly 5 is housed within the housing 1, dividing the airflow channel into an inlet end 17 and an outlet end 18. The anode side of the membrane electrode assembly 5 faces the inlet end 17, and the cathode side faces the outlet end. An oxygen dehumidification channel 16 is provided on the housing 1, connecting the inlet end 17 to the outside. Oxygen generated during the reaction process is discharged through the oxygen dehumidification channel 16.

[0029] The air inlet 17 is equipped with a continuously unidirectional moisture-permeable coating membrane 14, and the exhaust end 18 is equipped with an ePTFE microporous breathable protective membrane 6. The ePTFE microporous breathable protective membrane 6 forms a filter and breathable protective layer on the one hand, allowing the hydrogen gas produced by cathode electrolysis and the water molecule gas synthesized by the catalyst and oxygen in the atmosphere to be discharged; on the other hand, it prevents rainwater, dust and oil stains from entering the cathode cavity, protecting the cathode and catalyst layer from the risk of external environmental pollution, thus extending the life of this electrolysis device and effectively exerting the efficiency of electrolytic dehumidification.

[0030] The continuously unidirectionally permeable coating film 14 uses a polyurethane emulsion coating agent (see patent CN103862728B for details). Polyurethane is a high molecular compound containing -NHCOO- units in its molecular structure. Its main principle is to introduce an appropriate amount of hydrophilic groups on the polymer chain, which spontaneously disperse to form an emulsion under certain conditions. PU macromolecules contain a large number of polar groups and have strong intermolecular forces, resulting in excellent film-forming properties. It can form a tough and durable film on fabrics and also has a certain degree of moisture permeability. The reason is twofold: Firstly, the polar or hydrophilic groups in PU, such as —OH, —NHCOO—, —COOH, and organosilicon microparticles, act as "chemical stepping stones," causing water vapor molecules to migrate from the high-humidity side to the low-humidity side along a stepping stone. Theoretically, polymer chains mainly contain hydrophilic groups, and as long as the content and arrangement of these hydrophilic groups are appropriate, they can interact with water molecules. Through hydrogen bonds and other intermolecular forces, they adsorb moisture on the high-humidity side and then transfer it to the low-humidity side for desorption via the hydrophilic groups on the polymer chain. Therefore, moisture permeation is essentially a process of "adsorption-diffusion-transfer-desorption." The hydrophilic groups are called "chemical stepping stones," and under the presence of a pressure difference, moisture is directionally transferred from one side to the other. This process is also known as unidirectional moisture permeation.

[0031] The continuously unidirectionally permeable coating membrane 14 is formed by rolling a polyurethane emulsion coating agent containing hydrophilic groups onto one side of an expanded polytetrafluoroethylene membrane. After drying the coating at 80℃~100℃ and storing it at room temperature for 24 hours, the coating is cured on the surface of the expanded polytetrafluoroethylene membrane, forming a dense and durable coating. This coating contains hydrophilic groups, which interact with water molecules. Through hydrogen bonds and other intermolecular forces, it adsorbs water on the high humidity side and then transfers it to the low humidity side for desorption through the hydrophilic groups on the polymer chain. Therefore, moisture permeation is essentially a process in which water vapor molecules are "adsorbed" on the surface of the hydrophilic polyurethane coating; water molecules "diffuse" from inside the hydrophilic polyurethane coating to the outside; water molecules "desorb" at the interface between the hydrophilic polyurethane coating and the expanded polytetrafluoroethylene (ePTFE) membrane; and water molecules enter the densely packed micropores of the ePTFE membrane and expel moisture into the external environment. The hydrophilic groups are called "chemical step stones," and under a pressure difference, micro-moisture is directionally transferred from the side with higher concentration to the side with lower humidity. This process is also known as unidirectional moisture permeation.

[0032] Extensive testing of the continuously unidirectionally permeable coating membrane 14 revealed that the amount of water vapor permeating from the coating side to the expanded polytetrafluoroethylene (ePTFE) membrane side is greater than the amount permeating from the ePTFE membrane side to the coating side. This difference in permeability between the two directions results in a difference in permeability; the amount of water vapor permeating from the coating side outwards is approximately 30% greater than the amount permeating from the ePTFE membrane side into the housing 1. Utilizing this significant difference in permeability between the two directions, this coating membrane is applied to electrical (vehicle lighting) electronic equipment. The coating side of this membrane faces the automotive electrical (vehicle lighting) electronic equipment, while the ePTFE membrane side faces the external atmosphere. In this way, water vapor is continuously discharged from the housing of the electrical (vehicle lighting) electronic equipment, exhibiting the characteristic of continuously discharging water vapor unidirectionally from the inside of the housing 1 to the external environment. When the electrical (vehicle lighting) electronic equipment is operating, the higher the temperature inside the housing 1, the more active the hydrophilic polymer chains of the coating become, and the faster the adsorption, diffusion, and desorption of water vapor molecules.

[0033] The continuously unidirectionally permeable coating membrane 14 has the function of being permeable to moisture but not airtight. The function of the continuously unidirectionally permeable coating membrane 14 is to separate the anode electrolysis chamber into a chamber connected to the external atmospheric environment. Water molecules in this separated anode chamber, under the action of the platinum-carbon catalyst on the anode side, electrolyze and release oxygen atoms or molecules, hydrogen protons, and electrons. The released oxygen atoms or molecules are continuously released into the external atmospheric environment through small pores. Under the action of electrolysis, this separated anode chamber presents a low-humidity, slightly positive-pressure dry environment. Water molecules in the humid and hot air inside smart helmet displays, vehicle lights, monitoring probes, image detection, and lidar detection sensors migrate, permeate, diffuse, and desorb into this anode chamber through the continuously unidirectionally permeable coating membrane and are electrolyzed. (Permeability is essentially a process of "adsorption-diffusion-transfer-desorption." The hydrophilic groups are called "chemical step stones." Under the presence of a pressure difference, micro-water molecules directionally move from the side with higher concentration to the side with lower concentration.) The moisture is transferred to the other side where the temperature is low. This process is also known as the one-way moisture permeation process. The coating film 14, which is continuously one-way permeable, has the function of one-way moisture permeability and air impermeability, which prevents the electrical components and circuits inside from being corroded by oxygen-rich atoms. The internal oxygen concentration level is maintained at the same level as the atmospheric concentration, avoiding the risk of spontaneous combustion caused by excessive internal oxygen concentration. The moisture content in the internal air is also continuously reduced under the action of the electrolysis device, and the humidity value continues to decrease, keeping the inside dry. Even if the dew point of the external environment is very low, there is no fogging or condensation on the smooth mirror surfaces of the smart helmet display, vehicle lights, monitoring probes, image detection, and lidar detection sensors. This is an important new and major innovation of the device. This makes the chips, integrated circuits and other electronic components, circuits, PI insulation layers and other components inside the smart helmet display, vehicle lights, monitoring probes, image detection, and lidar detection sensors free from corrosion in the oxygen-rich environment. Their electrical performance is more reliable, the failure rate is lower, and the lifespan is longer.

[0034] The outer side of the housing has external threads for mounting the membrane electrode assembly 5 and connecting it to devices such as smart helmet displays, vehicle lights, monitoring probes, image detection, and lidar detection sensors. The exhaust end 18 has a through-hole cover plate 4, which can be fixed to the housing support by welding or adhesive. An ePTFE microporous breathable protective membrane 6 is disposed on the end face of the cover plate. A perforated PET protective layer 7 is also bonded to the outer side of the ePTFE microporous breathable protective membrane 6, and the two supports can be connected by adhesive. The perforated PET protective layer 7 increases the strength of the ePTFE microporous breathable protective membrane 6.

[0035] The elastic sealing ring 3 presses the membrane electrode assembly 5, improving the conductivity of the electrolysis circuit. The membrane electrode assembly 5 includes a conductive carbon paper diffusion layer 8, a cathode catalyst layer 9, a proton exchange membrane 10, an anode catalyst layer 11, and an anode porous foil 12 arranged sequentially. The cathode catalyst layer 9 is a cathode platinum-carbon Pt / C catalyst layer, the proton exchange membrane 10 is a perfluorosulfonic acid proton exchange membrane or a perfluorosulfonic acid proton exchange membrane reinforced with an ePTFE microporous membrane, the anode catalyst layer 11 is an anode platinum-carbon Pt / C catalyst layer, and the anode porous foil 12 is an anode platinum-titanium Pt / Ti porous foil 12. A DC anode conductor 15 and a DC cathode conductor 13 are also provided inside the housing. The DC anode conductor 15 is connected to the anode platinum-titanium Pt / Ti porous foil 13, and the DC cathode conductor 13 is connected to the conductive carbon paper diffusion layer 8. The DC anode conductor 15 and the DC cathode conductor 13 form a conductive electrolysis reaction circuit.

[0036] The conductive carbon paper diffusion layer 8 is a conductor in the electrolysis circuit. This conductor has micropores and through-holes, through which hydrogen gas electrolyzed from the cathode and water molecule gas synthesized from oxygen in the atmosphere under the action of the catalyst diffuse out.

[0037] The cathode platinum-carbon (Pt / C) catalyst layer is the cathode-side catalyst layer. H₂ is produced by electrolysis under the action of the anode-side platinum-carbon catalyst. + Under the influence of DC voltage, the H+ ions flow through a perfluorosulfonic acid proton exchange membrane or a perfluorosulfonic acid proton exchange membrane reinforced with ePTFE microporous membrane to the cathode side. There, under the action of a platinum-carbon catalyst on the cathode side, H+ ions react to form hydrogen or water molecules as follows:

[0038] 4H + +4e—2H2, O2+4H + +4e - —2H2O;H + Under the action of the platinum-carbon catalyst on the cathode side, the following reaction occurs, generating hydrogen or water molecules. These molecules are then released into the external atmosphere through convection with the external atmosphere via the ePTFE microporous membrane and the components such as smart helmet displays, vehicle lights, monitoring probes, image detection, and lidar sensors. This results in an extremely low hydrogen concentration on the cathode side, maintaining a safe state.

[0039] Perfluorosulfonic acid proton exchange membranes, or perfluorosulfonic acid proton exchange membranes reinforced with ePTFE microporous membranes, are H... + Under the influence of the electric field force generated by the voltage between the anode and cathode, H + Conducted to the cathode side, this type of proton exchange membrane only allows H10 to pass through. + By blocking electrons from passing through, electrons flow through the conductor circuit and through the DC power supply, forming a closed conductive system circuit.

[0040] Perfluorosulfonic acid proton exchange membranes (PFSEs) or PFSEs reinforced with ePTFE microporous membranes electrolyze water molecules within the internal space of smart helmet displays, vehicle lights, monitoring probes, image detection, and lidar detection sensors, reducing their internal humidity. Even at very low dew points, no condensation or fogging occurs, as condensation is caused by the internal micro-moisture content. The innovative structure uses a proton exchange membrane 10, which possesses excellent chemical stability, proton conductivity, and gas separation properties, as a solid electrolyte, effectively preventing electron transfer. Oxygen atoms electrolyzed at the anode are continuously released into the external atmosphere through small pores, eliminating the hazardous hazards of electrolyzed oxygen atoms and oxygen gas in the anode chamber. Hydrogen atoms electrolyzed at the cathode, along with their synthesized water molecules and hydrogen gas, diffuse through the ePTFE microporous breathable protective membrane 6 with the external air via convection, eliminating the explosive hazards of hydrogen gas accumulation in the cathode chamber. This innovative structure enhances the safety of the electrolysis device and its engineering applications.

[0041] The anode platinum-carbon (Pt / C) catalyst layer, designated as anode catalyst layer 11, contains water molecules that move at high speeds and randomly. Some of these molecules collide with the anode-side platinum-carbon catalyst and the platinum-titanium conductive mesh, resulting in an electrolytic reaction. The electrolytic decomposition reaction equation for water molecules under the action of the anode-side platinum-carbon catalyst is: 2H₂O → O₂ + 4H₂O + +4e - Electrolysis releases oxygen atoms or molecules, hydrogen protons, and electrons.

[0042] The housing also includes an elastic sealing ring 3 and an insulating seal 2 that mate with the DC anode conductor 15 and the DC cathode conductor 13. The insulating seal 2 prevents humidity from the external atmosphere from seeping into the interior of the smart helmet display, headlights, monitoring probes, image detection, and lidar detection sensors.

[0043] The platinum-titanium (Pt / Ti) porous foil anode enhances the efficiency of water molecule electrolysis at the anode and increases the area of ​​water molecule collision with the anode, thus increasing the chances of water molecule electrolysis.

[0044] The device is assembled and connected to a smart helmet display, vehicle lights, monitoring probes, image detectors, and lidar sensors. Connection methods include threaded connections, flange screw connections, and bayonet mounting. A DC voltage of 1.23V to 3V is applied to the anode and cathode of the device. Water molecules within the internal spaces of the smart helmet display, vehicle lights, monitoring probes, image detectors, and lidar sensors move at high speeds and randomly. Some collide with the platinum-carbon catalyst and platinum-titanium conductive mesh on the anode side, undergoing an electrolytic reaction. The electrolytic decomposition reaction equation of water molecules under the action of the platinum-carbon catalyst on the anode side is as follows:

[0045] 2H₂O—O₂+4H+ +4e - Electrolysis releases oxygen atoms or molecules, hydrogen protons, and electrons, etc.

[0046] Under the action of the platinum-carbon catalyst on the anode side, water molecules release oxygen and oxygen atoms into the anode chamber, which are then continuously released into the external atmosphere through small pores. The continuously unidirectionally permeable coating membrane 14 has the function of being permeable to moisture but impermeable to air. The function of the continuously unidirectionally permeable coating membrane 14 is to separate the anode electrolysis chamber into a chamber connected to the external atmosphere. In this separated anode chamber, water molecules, under the action of the platinum-carbon catalyst on the anode side, electrolyze and release oxygen atoms or molecules, hydrogen protons, and electrons, etc. Oxygen atoms or molecules are continuously released into the external atmosphere through small pores. The separated anode chamber, under the action of electrolysis, presents a low-humidity, slightly positive-pressure dry environment. Water molecules in the humid air inside smart helmet displays, vehicle lights, monitoring probes, image detectors, and lidar sensors migrate, diffuse, and desorb into the anode chamber through a one-way permeable coating membrane, where they are electrolyzed. (Permeability is essentially a process of "adsorption-diffusion-transfer-desorption." The hydrophilic groups are called "chemical steppes.") Under pressure differentials, trace moisture flows directionally from the side with higher concentration to the side with lower humidity. This process is known as unidirectional moisture permeation. The continuously unidirectionally permeable coating membrane 14 possesses the function of being permeable to moisture but not airtight, preventing the internal electrical components and circuits from being corroded by oxygen-rich atoms. Its internal oxygen concentration is maintained at the same level as atmospheric oxygen, avoiding the risk of spontaneous combustion caused by excessive internal oxygen concentration. The trace moisture content in the internal air also continuously decreases under the action of the electrolysis device, resulting in a continuously decreasing humidity value and maintaining a dry internal state. Even when the external dew point is very low, smooth surfaces such as smart helmet displays, headlights, monitoring probes, image detectors, and lidar sensors do not experience fogging or condensation. This is a significant new innovation of the device, which protects the internal electronic components such as chips, integrated circuits, circuits, and PI insulation layers of smart helmet displays, headlights, monitoring probes, image detectors, and lidar sensors from corrosion in oxygen-rich environments. This results in more reliable electrical performance, lower failure rates, and longer lifespans. The H+ ions generated by electrolysis under the action of the platinum-carbon catalyst on the anode side flow through the perfluorosulfonic acid proton exchange membrane or the perfluorosulfonic acid proton exchange membrane reinforced with ePTFE microporous membrane under the action of DC voltage to reach the cathode side. Under the action of the platinum-carbon catalyst on the cathode side, the H+ ions form hydrogen molecules or water molecules in the following reaction:

[0047] 4H + +4e—2H2, O2+4H + +4e - —2H2O;H +Under the action of the platinum-carbon catalyst on the cathode side, the following reaction occurs, generating hydrogen or water molecules. These molecules are then released into the external atmosphere through convection with the external atmosphere via the ePTFE microporous membrane and the components such as smart helmet displays, vehicle lights, monitoring probes, image detection, and lidar sensors. This results in an extremely low hydrogen concentration on the cathode side, maintaining a safe state.

[0048] The device of this invention connects to the rigid housing of sealed equipment with electronic components, such as smart helmet displays, vehicle lights, monitoring probes, image detection, lidar detection sensors, and marine engineering equipment electrical cabinets, using snap-fit, threaded, or faucet-type connections. The technical problem it solves is that the desiccant pack contains a large amount of desiccant, enabling explosive moisture absorption to rapidly reduce internal humidity and maintain a dry, fog-free internal environment. Because ordinary desiccant packs are relatively inexpensive, they can be easily replaced at regular intervals. The desiccant in the pack can be a common desiccant or a mixture of hygroscopic particulate matter and highly efficient far-infrared radiation-absorbing microparticles.

[0049] After connecting the device of the present invention to the equipment casing and wiring the power terminal of the "active water molecule electrolysis device for unidirectionally reducing humidity in a confined space by discharging oxygen outwards", and then turning on the power supply to start the equipment, The "active electrolysis water molecule device that discharges oxygen to reduce humidity in a confined space" continuously electrolyzes water molecules in the air inside these devices (which migrate and diffuse to the anode chamber for electrolysis), causing the humidity inside these devices to drop rapidly. At the same time, after the device is working, the internal electrical components heat up, increasing the internal air pressure. The humid and hot air inside the device is quickly absorbed by the desiccant pack, or the mixture of hygroscopic particulate matter and micro-particles that efficiently absorb far-infrared radiation energy in the device pack also discharges micro-moisture into the device. Under the energy of absorbing thermal infrared radiation, the mixture of reversible hygroscopic particulate matter is further dried, so that the mixture of reversible hygroscopic particulate matter continues to have the ability to absorb moisture and dry after the device stops working. This makes the air humidity (dryness) inside the above-mentioned devices much lower than the dew point temperature of the external environment. As a result, there is no fogging on the internal mirrors or smooth surfaces of smart helmet displays, vehicle lights, monitoring probes, image detection, lidar detection sensors, marine engineering equipment electrical cabinets, etc., allowing these devices to perform effectively.

[0050] When the aforementioned equipment stops working, the temperature of its internal electrical components and the internal air temperature drop, leading to an equilibrium of internal and external pressure. The ordinary desiccant packet or the mixture of reversible moisture-absorbing particles within the packet continues to absorb moisture and dry the internal air after the equipment stops working, maintaining a very low humidity level. If a backup power supply is activated after the aforementioned equipment stops working to provide power to the "active water molecule electrolysis device for unidirectionally reducing humidity in a confined space by discharging oxygen outwards" of the present invention, the functional module of the present invention that electrolyzes water molecules inside the aforementioned equipment will continue to work, thus continuously reducing the humidity inside smart helmet displays, vehicle lights, monitoring probes, image detection, lidar detection sensors, marine engineering equipment electrical cabinets, etc., maintaining a very low humidity and a dry state, with no fogging on the internal mirrors or smooth surfaces. When these devices are restarted after a long period of inactivity, no fogging occurs on the internal mirrors or smooth surfaces, ensuring their effective performance (vehicle lights provide long and bright illumination, monitoring cameras provide clear images, electrical circuits are free of short circuits, and internal components are free of corrosion, etc.).

[0051] This invention relates to an active electrolytic water molecule one-way defogging control device with a desiccant pack, which maintains a low internal oxygen concentration. This prevents the internal electrical components and circuits from being corroded by oxygen-rich atoms and avoids the risk of spontaneous combustion caused by excessive internal oxygen concentration. The micro-moisture content in the air inside the shell is continuously reduced under the action of the electrolysis device, resulting in a consistently low humidity level and maintaining a dry interior. Even when the external dew point is very low, smooth surfaces such as smart helmet displays, headlights, monitoring probes, image detectors, and lidar sensors remain free from fogging and condensation. This is a significant new innovation of the device. It also protects the chips, integrated circuits, circuits, and PI insulation layers inside smart helmet displays, headlights, monitoring probes, image detectors, and lidar sensors from corrosion in oxygen-rich environments, resulting in more reliable electrical performance, lower failure rates, and longer lifespans. Furthermore, the cathode chamber of this device uses an ePTFE microporous breathable protective membrane. On the one hand, it forms a breathable protective layer that circulates with the atmosphere, continuously discharging the hydrogen gas produced by cathode electrolysis and the water molecules synthesized from oxygen in the atmosphere under the action of the catalyst, thus eliminating the risk of hydrogen explosion due to hydrogen accumulation on the cathode side. On the other hand, it prevents rainwater, dust, oil, and other contaminants from entering the cathode chamber, protecting the cathode and catalyst layer from the risk of external environmental pollution. This results in a longer lifespan for the electrolysis device and effectively maximizes the efficiency of electrolytic dehumidification.

[0052] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An active electrolytic water molecule unidirectional fog dispersing device with desiccant package, comprising a base mounted on an external device, characterized in that, The base has a through mounting cavity A and a single-sided opening mounting cavity B. The mounting cavities A and B are isolated from each other. The mounting cavity A is equipped with a one-way oxygen exhaust and dehumidification device, and the mounting cavity B is equipped with a desiccant pack. The opening of the mounting cavity B is equipped with a perforated cover plate. The one-way oxygen exhaust and dehumidification device and the breathable perforated cover plate are connected to the internal space of the external equipment.

2. The active electrolytic water molecule unidirectional fog dissipating device with desiccant pack of claim 1, wherein, The desiccant pack is a regular desiccant pack or a reversible moisture-absorbing desiccant pack.

3. The active electrolytic water molecule unidirectional fog dissipating device with desiccant pack of claim 2, wherein, The porous cover plate has multiple ventilation holes.

4. The active electrolytic water molecule unidirectional defogging device with desiccant pack according to claim 3, characterized in that, The base is provided with multiple connecting buckles spaced apart on its circumference.

5. The active electrolytic water molecule unidirectional defogging device with desiccant pack according to any one of claims 1-4, characterized in that, The unidirectional dehumidification and oxygen removal device includes a housing threaded into the mounting cavity A. A membrane electrode assembly is provided inside the housing. The membrane electrode assembly divides the airflow channel into an air inlet and an air outlet. The air inlet is provided with a continuously unidirectionally permeable coating membrane, and the air outlet is provided with an ePTFE microporous breathable protective membrane. An oxygen removal channel is provided on the housing to connect the air inlet with the outside. The anode side of the membrane electrode assembly faces the air inlet, and the cathode side of the membrane electrode assembly faces the air outlet. The air inlet is connected to the internal space of an external device.

6. The active electrolytic water molecule unidirectional defogging device with desiccant pack according to claim 5, characterized in that, The outer side of the ePTFE microporous breathable protective membrane is also bonded with a PET protective layer with through holes.

7. The active electrolytic water molecule unidirectional defogging device with desiccant pack according to claim 5, characterized in that, The membrane electrode assembly includes a conductive carbon paper diffusion layer, a cathode catalyst layer, a proton exchange membrane, an anode catalyst layer, and an anode porous foil mesh arranged sequentially.

8. The active electrolytic water molecule unidirectional defogging device with desiccant pack according to claim 7, characterized in that, The cathode catalyst layer is a platinum-carbon Pt / C catalyst layer, the proton exchange membrane is a perfluorosulfonic acid proton exchange membrane or a perfluorosulfonic acid proton exchange membrane reinforced with an ePTFE microporous membrane, the anode catalyst layer is a platinum-carbon Pt / C catalyst layer, the anode porous foil is a platinum-titanium Pt / Ti porous foil, and the housing is also provided with a DC anode conductor and a DC cathode conductor. The DC anode conductor is connected to the anode platinum-titanium Pt / Ti porous foil, and the DC cathode conductor is connected to the conductive carbon paper diffusion layer.

9. The active electrolytic water molecule unidirectional defogging device with desiccant pack according to claim 8, characterized in that, The housing is also equipped with an elastic sealing ring and an insulating sealing element that cooperate with the DC anode conductor and the DC cathode conductor.

10. The active electrolytic water molecule unidirectional defogging device with desiccant pack according to claim 9, characterized in that, The exhaust end is provided with a through-hole cover plate, and the ePTFE microporous breathable protective membrane is disposed on the end face of the through-hole cover plate.

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