Apparatus for directional collection of condensation on electrical equipment and method of manufacture

Abstract

The application provides a device for collecting condensation of an electric appliance and a preparation method, which comprises a humidity sensing device, a directional transmission part, an enrichment transfer part and a power supply part. The directional transmission part is arranged at a condensation generation position of the electric appliance. The humidity sensing device is connected to one side of the directional transmission part facing the condensation generation position. The enrichment transfer part is connected to the other side of the directional transmission part. The power supply part is connected to the humidity sensing device. When the humidity sensing device senses the condensation generation, the power supply part supplies power to the directional transmission part. The directional transmission part directionally conducts the condensation to the enrichment transfer part under the electric osmosis effect. The device for collecting condensation of an electric appliance and the preparation method provided by the embodiment of the application can directionally collect the condensation generated by the electric appliance, avoid the problems of large volume, high cost and high power consumption caused by the dehumidification mode of a fan or a dehumidifier, and are more widely applied.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and in particular to a device and preparation method for directional collection of condensation from electrical appliances. Background Technology

[0002] Condensation occurs when water vapor in the air condenses due to localized temperature changes within electrical appliances. The operation of motors in electrical equipment generates significant heat, producing substantial amounts of condensation. Household refrigeration appliances (refrigerators, air conditioners, etc.) also generate condensation due to localized temperature differences when transferring heat. Prolonged condensation can drastically reduce the insulation level of electrical appliances, easily leading to short circuits and accidents. It can also cause corrosion to the appliance's appearance, hinges, and ventilation areas, posing a safety hazard to users.

[0003] Currently, there are two main categories of methods for solving condensation problems in electrical appliances. The first is to use electric heaters and desiccants (silicone bags, absorbent materials, etc.) to reduce local humidity and thus reduce condensation. The second is to use fans and dehumidifiers to remove humid air and reduce condensation. While using heaters and desiccants temporarily reduces the humidity around the appliance, it doesn't remove the moisture. As the appliance generates heat again, condensation will continue to form. Removing humid air is more effective in preventing condensation. However, fans and dehumidifiers are bulky and only suitable for large equipment, such as those with motors. It's impractical to add fans to small household appliances like air conditioner vents or refrigerator interiors. Furthermore, fans need to operate continuously to ensure the air around the appliance is always dry. Using fans and dehumidifiers is energy-intensive and costly. In addition, the motors themselves generate heat, causing condensation to form on the appliance itself. Summary of the Invention

[0004] This invention provides a device and preparation method for directional collection of condensation from electrical appliances. It can directionally collect condensation generated by electrical appliances, avoiding the problems of large size, high cost, and high power consumption caused by dehumidification methods such as fans or dehumidifiers, and has a wider range of applications.

[0005] The technical solutions provided by the embodiments of the present invention are as follows: This invention provides a device for directional collection of condensation from electrical appliances, suitable for collecting condensation from electrical appliances. The device includes: a humidity sensing device, a directional transmission section, an enrichment and transfer section, and a power supply section. The directional transmission section is located at the condensation location of the electrical appliance. The humidity sensing device is connected to one side of the directional transmission section facing the condensation location. The enrichment and transfer section is connected to the other side of the directional transmission section. The power supply section is connected to the humidity sensing device. When the humidity sensing device senses condensation, the power supply section supplies power to the directional transmission section. The directional transmission section directionally conducts the condensation to the enrichment and transfer section under electroosmotic action.

[0006] In some embodiments, the directional transport unit includes a positive hydrophilic electrode layer, an insulating water-absorbing layer, and a negative hydrophobic electrode layer. The positive hydrophilic electrode layer, the insulating water-absorbing layer, and the negative hydrophobic electrode layer are bonded and stacked together. The insulating water-absorbing layer is located between the positive hydrophilic electrode layer and the negative hydrophobic electrode layer to space them apart. The positive electrode of the power supply unit is connected to the positive hydrophilic electrode layer, and the negative electrode of the power supply unit is connected to the negative hydrophobic electrode layer.

[0007] In some embodiments, the enrichment and transfer section includes a water collection layer that is in close contact with the negative electrode hydrophobic electrode layer. A water collection tank is provided on the water collection layer, and the water collection tank has at least one outlet. The water collection tank collects and temporarily stores the water accumulated from the negative electrode hydrophobic electrode layer.

[0008] In some embodiments, the humidity sensing device includes a humidity sensor, the power supply includes a DC power supply, the humidity sensor is connected to the DC power supply, and the DC power supply switches on and off based on the detected value of the condensation through the humidity sensor.

[0009] In some embodiments, a conduit is provided at the outlet, the conduit is grounded, and the condensate flows into the conduit through the water collection tank and is discharged with the conduit; a removable water collection tank is provided at the outlet, and the condensate flows into the water collection tank through the water collection tank.

[0010] In some embodiments, the positive hydrophilic electrode layer is a graphene oxide polyvinyl alcohol hydrophilic conductive film, the insulating absorbent layer is an insulating sponge, and the negative hydrophobic electrode layer is a copper mesh hydrophobic negative electrode film. The graphene oxide polyvinyl alcohol hydrophilic conductive film, the insulating sponge, and the copper mesh hydrophobic negative electrode film are arranged in a square of the same size and bonded together in sequence. The graphene oxide polyvinyl alcohol hydrophilic conductive film is connected to the positive electrode of the power supply unit, and the negative electrode hydrophobic electrode layer is connected to the negative electrode of the power supply unit.

[0011] In some embodiments, the positive hydrophilic electrode layer is a conductive and water-permeable membrane modified with graphene, carbon nanotubes, or nano-copper powder, and the material of the water-permeable membrane is polytetrafluoroethylene, polyvinyl alcohol, chitosan, or polyetherimide; the insulating and absorbent layer is at least one insulating and water-permeable material selected from polymer film, textiles, and sponge; and the material used for the negative hydrophobic electrode layer is at least one selected from copper mesh or aluminum mesh coated with metal.

[0012] In some embodiments, the positive hydrophilic electrode layer is a graphene oxide polyvinyl alcohol hydrophilic conductive film, the insulating absorbent layer is an insulating sponge, and the negative hydrophobic electrode layer is a copper mesh hydrophobic negative electrode film. The graphene oxide polyvinyl alcohol hydrophilic conductive film, the insulating sponge, and the copper mesh hydrophobic negative electrode film are arranged in a square of the same size and bonded together in sequence. The graphene oxide polyvinyl alcohol hydrophilic conductive film is connected to the positive electrode of the power supply unit, and the negative electrode hydrophobic electrode layer is connected to the negative electrode of the power supply unit.

[0013] In some embodiments, the external dimensions of the directional transport unit are adapted to the location where condensation occurs.

[0014] In another aspect, the present invention provides a method for preparing a device for directional collection of condensation from electrical appliances, for use in preparing the device for directional collection of condensation from electrical appliances as described above, comprising: S1: Prepare the positive hydrophilic electrode layer; S2: Fabrication of the negative hydrophobic electrode layer; S3: Prepare an insulating and absorbent layer, and then attach the positive hydrophilic electrode layer, the insulating and absorbent layer, and the negative hydrophobic electrode layer in sequence. S4: Prepare a water collection layer and assemble the water collection layer onto the drainage side of the negative hydrophobic electrode layer.

[0015] In some embodiments, step S1 includes preparing a graphene oxide polyvinyl alcohol hydrophilic conductive film to be used as the positive electrode hydrophilic electrode layer, specifically the following steps: S11: Add graphene oxide to methanol solution at a mass ratio of 1:199, and disperse the graphene oxide evenly by sonication for 30-50 minutes for later use. S12: Pour polyethylene glycol and tannic acid into an aqueous solution of graphene oxide, stir at 70-80°C for 2 hours, and then pour into a preheated mold at 90°C for 25 hours to form. S13: The formed film is naturally air-dried at 20°C for two days to obtain a graphene oxide polyvinyl alcohol film. It is then cut according to the preset size and cleaned with oxygen plasma to ensure that the film is a hydrophilic film. The connecting wires are kept in positive contact with the power supply unit. Step S2 includes the preparation of a copper mesh hydrophobic negative electrode film as the negative electrode hydrophobic electrode layer, specifically the following steps: S21: Polish the copper mesh with sandpaper to remove surface copper rust, and then ultrasonically clean it by soaking it in ethanol and water respectively; S22: A nickel layer is deposited on the copper mesh using magnetron sputtering, which protects the copper mesh and modifies its wettability to ensure it is a hydrophobic electrode; S23: Cut the copper mesh to the same size as the graphene oxide polyvinyl alcohol hydrophilic conductive film, and connect the connecting wire to the negative terminal of the power supply unit; Step S3 specifically includes: S31: The insulating sponge is used as the insulating absorbent layer, the humidity sensing device is attached to one side of the hydrophilic film electrode, and the hydrophilic film electrode is bonded together with the intermediate insulating sponge and the hydrophobic film electrode with conductive adhesive and pressed firmly. S32: The power supply unit is attached to one side of the water collection layer, and the water collection layer is attached to the negative hydrophobic electrode layer. The interface is sealed with sealant to prevent water leakage. Step S4 specifically includes: S41, a drain outlet is provided in the water collection layer, and the drain outlet is adapted to be connected to a grounding conduit or a water collection tank.

[0016] The beneficial effects brought about by the embodiments of the present invention are as follows: In the above solution, the humidity sensing device can detect the occurrence of condensation. After condensation occurs, the power supply unit connects to the directional transmission unit. Under the action of electroosmosis, the directional transmission unit directionally conducts the condensation to the enrichment and transfer unit, which can directionally collect the condensation generated by the electrical appliances. This avoids the problems of large size, high cost, and high power consumption caused by dehumidification methods such as fans or dehumidifiers. The application field is wider. Moreover, it can change the traditional transportation of humid air to transportation of condensate, reducing the useless work of transportation of humid air. By monitoring the surface of the equipment through the humidity sensing device, the power supply unit connects to the directional transmission unit to automatically collect the condensation when the humidity reaches 70%. There is no need for real-time operation, thus saving a lot of energy. In addition, there is no need to use fans, motors and other equipment, which will inevitably save the size and weight of the equipment itself.

[0017] In a further embodiment of the invention, the power supply unit uses a 1-5V DC voltage, which can be powered by a commercial battery, resulting in low heat generation and low energy consumption. Furthermore, the directional transmission unit's dimensions are adapted to the location where condensation occurs in electrical appliances, and it is customized according to the required appliance size, perfectly fitting the position where condensation occurs, thus meeting the needs of various electrical appliances. Attached Figure Description

[0018] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0019] Figure 1 An exploded view of the structure of the device for directional collection of electrical condensation provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a device for directional collection of electrical condensation provided in an embodiment of the present invention; Figures 3 to 6 A flowchart illustrating the preparation method of the device for directional collection of electrical condensation provided in an embodiment of the present invention.

[0020] [Figure Labels]

[0021] 10. Equipment for the targeted collection of condensation from electrical appliances; 1. Humidity sensing device; 2. Positive hydrophilic electrode layer; 3. Insulating water-absorbing layer; 4. Negative hydrophobic electrode layer; 5. Water collection layer; 6. Power supply unit.

[0022] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0023] The following describes in detail, with reference to the accompanying drawings and specific embodiments, a device and preparation method for directional collection of condensation from electrical appliances provided by the present invention. It should also be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0024] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0025] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0026] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0027] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0028] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a device 10 for directional collection of condensation from electrical appliances, suitable for collecting condensation from electrical appliances. The device includes: a humidity sensing device 1, a directional transmission section, an enrichment and transfer section, and a power supply section 6. The directional transmission section is located at the condensation location of the electrical appliance. The humidity sensing device 1 is connected to the side of the directional transmission section facing the condensation location. The enrichment and transfer section is connected to the other side of the directional transmission section. The power supply section 6 is connected to the humidity sensing device 1. When the humidity sensing device 1 senses the occurrence of condensation, the power supply section 6 supplies power to the directional transmission section. Under the action of electroosmosis, the directional transmission section directionally conducts the condensation to the enrichment and transfer section.

[0029] In the above embodiments, the humidity sensing device 1 can sense the occurrence of condensation. After condensation occurs, the power supply unit 6 connects to the directional transmission unit. Under the action of electroosmosis, the directional transmission unit directionally conducts the condensation to the enrichment and transfer unit, thereby discharging the condensation. It can directionally collect the condensation generated by the electrical appliance, avoiding the problems of large size, high cost, and high power consumption caused by dehumidification methods such as fans or dehumidifiers. It has a wider range of applications. In addition, it can change the traditional transportation of humid air to transportation of condensate, reducing the useless work of the humid air transportation part. By monitoring the surface of the equipment through the humidity sensing device 1, after the humidity reaches the preset value, the power supply unit 6 connects to the directional transmission unit to automatically collect the condensation. It does not need to work in real time, thereby saving a lot of energy. In addition, there is no need to use equipment such as fans and motors, which will inevitably save the size and weight of the equipment itself.

[0030] Combination Figure 1In some embodiments, the directional transmission unit includes a positive hydrophilic electrode layer 2, an insulating water-absorbing layer 3, and a negative hydrophobic electrode layer 4. The positive hydrophilic electrode layer 2, the insulating water-absorbing layer 3, and the negative hydrophobic electrode layer 4 are bonded and stacked together. The insulating water-absorbing layer 3 is located between the positive hydrophilic electrode layer 2 and the negative hydrophobic electrode layer 4, so that the positive hydrophilic electrode layer 2 and the negative hydrophobic electrode layer 4 are spaced apart from each other. The positive electrode of the power supply unit 6 is connected to the positive hydrophilic electrode layer 2, and the negative electrode of the power supply unit 6 is connected to the negative hydrophobic electrode layer 4.

[0031] In the above embodiment, the positive and negative terminals of the power supply unit 6 are respectively connected to the positive hydrophilic electrode layer 2 and the negative hydrophobic electrode layer 4. After the condensation on the appliance reaches the threshold, the humidity sensing device 1 sends a signal, and the power supply unit 6 connects the positive hydrophilic electrode layer 2 and the negative hydrophobic electrode layer 4. Under the action of voltage, the condensation attached to the positive hydrophilic electrode layer 2 permeates into the negative hydrophobic layer, thereby conducting the condensation on the surface of the appliance to the negative hydrophobic layer. After the condensation is conducted, the humidity decreases, the humidity sensing device 1 sends a signal, and the power supply unit 6 cuts off the positive hydrophilic electrode layer 2 and the negative hydrophobic electrode layer 4, thereby saving energy.

[0032] In some embodiments, the enrichment and transfer section includes a water collection layer 5, which is in close contact with the negative electrode hydrophobic electrode layer 4. A water collection tank is provided on the water collection layer 5, and the water collection tank has at least one outlet. The water collection tank collects and temporarily stores the water accumulated from the negative electrode hydrophobic electrode layer 4.

[0033] In the above embodiments, the water collection layer 5 can be configured with a multi-layer structure. The water collection tanks in the water collection layer 5 can be distributed according to certain arrangement rules. For example, the water collection tanks can be arranged in the form of concentric rings. These are not listed one by one. The water collection tanks collect and temporarily store the water accumulated from the negative electrode hydrophobic electrode layer 4. The water collection layer 5 is usually configured as a thin layer. Thus, the depth of the water collection tanks set in it is relatively shallow, and it can only temporarily store the water. One or more water outlets are set at the end, middle or beginning of the water collection tank. The water is discharged from the water collection layer 5 through the water outlets. A conduit connected to the underground drainage system can be set at the water outlet. The water can be directly discharged into the underground drainage system through the conduit. A water tank can also be set at the water outlet. The water is discharged into the water tank and the water is emptied by emptying the water tank.

[0034] In some embodiments, the humidity sensing device 1 includes a humidity sensor, the power supply unit 6 includes a DC power supply, the humidity sensor is connected to the DC power supply, and the DC power supply switches on and off based on the condensation detection value through the humidity sensor.

[0035] In the above embodiments, by monitoring the surface of the electrical equipment with a humidity sensor, the power supply unit 6 can be set to automatically collect condensation when the humidity reaches 70%, without the need for real-time operation. The DC power supply voltage is 1-5V DC voltage, and commercial batteries can provide power. The operation generates little heat and consumes little energy.

[0036] In some embodiments, a conduit is provided at the outlet, the conduit is grounded, and condensation flows into the conduit through a water collection tank and is discharged with the conduit. Alternatively, a removable water collection tank is provided at the outlet, and condensation flows into the water collection tank through the water collection tank.

[0037] In the above embodiments, the condensate collected inside the water collection layer 5 is discharged using different methods depending on the type of electrical appliance being used. For large outdoor equipment, such as large generators, the conduit connecting to the water collection layer 5 is buried underground and discharged directly into the soil. When multiple indoor devices are in use, such as switch cabinets in a factory, a drainage pipe is designed to collect and reuse the condensate from multiple water collection layers 5. For household appliances, such as the inside of refrigerators and air conditioner vents, which are prone to condensation, a small water collection tank is connected, and the condensate is emptied periodically.

[0038] In some embodiments, the positive electrode hydrophilic electrode layer 2 is a graphene oxide polyvinyl alcohol hydrophilic conductive film, the insulating and absorbent layer 3 is an insulating sponge, and the negative electrode hydrophobic electrode layer 4 is a copper mesh hydrophobic negative electrode film. The graphene oxide polyvinyl alcohol hydrophilic conductive film, the insulating sponge, and the copper mesh hydrophobic negative electrode film are arranged in a square of the same size and bonded together in sequence. The graphene oxide polyvinyl alcohol hydrophilic conductive film is connected to the positive electrode of the power supply unit 6, and the negative electrode hydrophobic electrode layer 4 is connected to the negative electrode of the power supply unit 6.

[0039] In the above embodiments, the main body of the device 10 for directional collection of condensation from electrical appliances is a thin-layered cuboid structure, which can be changed in size according to the needs of electrical appliances, fitting large generators or small air conditioning vents, etc., to meet the needs of most electrical appliances.

[0040] In some embodiments, the positive hydrophilic electrode layer 2 is a conductive and water-permeable membrane modified with graphene, carbon nanotubes or nano copper powder, and the material of the water-permeable membrane is polytetrafluoroethylene, polyvinyl alcohol, chitosan or polyetherimide; the insulating and water-absorbing layer 3 is at least one insulating and water-permeable material selected from polymer film, textiles or sponge; and the material used for the negative hydrophobic electrode layer 4 is at least one selected from copper mesh or aluminum mesh coated with metal.

[0041] In the above embodiments, several specific positive electrode hydrophilic electrode layer thin film materials, negative electrode hydrophobic electrode layer materials, and insulating water-absorbing layer materials are exemplified. In addition to those listed above, other conductive and water-permeable materials can be used as the positive electrode hydrophilic electrode layer 2. Similarly, other conductive and water-permeable hydrophobic materials can also be used as the negative electrode hydrophobic electrode layer 4. No limitation is made here.

[0042] In some embodiments, the external dimensions of the directional transport section are adapted to the location where condensation occurs.

[0043] In the above embodiments, the device 10 for directional collection of electrical condensation can controllably collect condensed water droplets from the outer surface of electrical appliances into the interior and discharge them. The device 10 for directional collection of electrical condensation is a thin-layer device, and its size can be designed according to the needs of electrical appliances. It is suitable for various equipment such as large generators, switch cabinets, air conditioners, and refrigerators.

[0044] Furthermore, in another aspect of the present invention, in combination with Figure 3 Furthermore, a method for preparing a device for directional collection of condensation from electrical appliances is provided, for use in the preparation of the aforementioned device 10 for directional collection of condensation from electrical appliances, comprising: S1: Prepare the positive hydrophilic electrode layer; S2: Fabrication of the negative hydrophobic electrode layer; S3: Prepare an insulating and absorbent layer, and then attach the positive hydrophilic electrode layer, the insulating and absorbent layer, and the negative hydrophobic electrode layer in sequence. S4: Prepare a water collection layer and assemble the water collection layer onto the drainage side of the negative hydrophobic electrode layer.

[0045] In the above embodiments, the positive hydrophilic electrode layer, the insulating water-absorbing layer and the negative hydrophobic electrode layer are prepared and assembled using the principle of electroosmosis. This allows the condensation on the surface of the electrical appliance to be transported to the negative hydrophobic electrode layer through the positive hydrophilic electrode layer and the insulating water-absorbing layer, respectively, and finally the condensation is enriched in the water collection layer and discharged.

[0046] In some embodiments, combined with Figure 4 Step S1 includes preparing a graphene oxide polyvinyl alcohol hydrophilic conductive film to be used as a positive electrode hydrophilic electrode layer. The specific steps are as follows: S11: Add graphene oxide to methanol solution at a mass ratio of 1:199, and disperse the graphene oxide evenly by sonication for 30-50 minutes for later use. S12: Pour polyethylene glycol and tannic acid into an aqueous solution of graphene oxide, stir at 70-80°C for 2 hours, and then pour into a preheated mold at 90°C for 25 hours to form. S13: The formed film is naturally air-dried at 20°C for two days to obtain a graphene oxide polyvinyl alcohol film. It is then cut according to the preset size and cleaned with oxygen plasma to ensure that the film is a hydrophilic film. The connecting wires are kept connected to the positive electrode of the power supply unit. Step S2 includes preparing a copper mesh hydrophobic negative electrode film to serve as the negative electrode hydrophobic layer, combined with... Figure 5 The specific steps are as follows: S21: Polish the copper mesh with sandpaper to remove surface copper rust, and then ultrasonically clean it by soaking it in ethanol and water respectively; S22: A nickel layer is deposited on the copper mesh using magnetron sputtering, which protects the copper mesh and modifies its wettability to ensure it is a hydrophobic electrode; S23: Cut the copper mesh to the same size as the graphene oxide polyvinyl alcohol hydrophilic conductive film, and connect the connecting wire to the negative terminal of the power supply unit; Combination Figure 6 Step S3 specifically includes: S31: The insulating sponge is used as the insulating and absorbent layer. The humidity sensing device 1 is attached to one side of the hydrophilic film electrode. The hydrophilic film electrode is bonded together with the middle insulating sponge and the hydrophobic film electrode using conductive adhesive. S32: The power supply unit is attached to one side of the water collection layer, and the water collection layer is attached to the negative hydrophobic electrode layer. The interface is sealed with sealant to prevent water leakage. Step S4 specifically includes: S41, a drain outlet is installed in the water collection layer, and the drain outlet is adapted to connect to a grounding conduit or a water collection tank.

[0047] The method for preparing a device for directional collection of condensation from electrical appliances according to an embodiment of the present invention can manufacture the device into a thin-layer device, the size of which can be designed according to requirements. It is suitable for various equipment such as large generators, switch cabinets, air conditioners, and refrigerators. Based on the principle of electroosmosis, it can controllably collect condensed water droplets from the outer surface into the interior and discharge them. The device consumes little energy and can operate with a low voltage commercial battery.

[0048] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. The above descriptions are merely preferred embodiments of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention.

Claims

1. A device for directional collection of condensation from electrical appliances, suitable for collecting condensation from electrical appliances, characterized in that, include: The appliance comprises a humidity sensing device, a directional transmission unit, an enrichment and transfer unit, and a power supply unit. The directional transmission unit is located at the condensation occurrence position of the appliance. The humidity sensing device is connected to the side of the directional transmission unit facing the condensation occurrence position. The enrichment and transfer unit is connected to the other side of the directional transmission unit. The power supply unit is connected to the humidity sensing device. When the humidity sensing device senses condensation, the power supply unit supplies power to the directional transmission unit. The directional transmission unit conducts condensation directionally to the enrichment and transfer unit under the action of electroosmosis. The directional transport unit includes a positive hydrophilic electrode layer, an insulating water-absorbing layer, and a negative hydrophobic electrode layer. The positive hydrophilic electrode layer, the insulating water-absorbing layer, and the negative hydrophobic electrode layer are bonded and stacked together. The insulating water-absorbing layer is located between the positive hydrophilic electrode layer and the negative hydrophobic electrode layer to separate them from each other. The positive electrode of the power supply unit is connected to the positive hydrophilic electrode layer, and the negative electrode of the power supply unit is connected to the negative hydrophobic electrode layer.

2. The device for directional collection of condensation from electrical appliances according to claim 1, characterized in that, The enrichment and transfer section includes a water collection layer that is in close contact with the negative electrode hydrophobic electrode layer. A water collection tank is provided on the water collection layer and the water collection tank has at least one outlet. The water collection tank collects and temporarily stores the water accumulated from the negative electrode hydrophobic electrode layer.

3. The device for directional collection of condensation from electrical appliances according to claim 1, characterized in that, The humidity sensing device includes a humidity sensor, and the power supply includes a DC power supply. The humidity sensor is connected to the DC power supply, and the DC power supply switches on and off based on the detected value of the condensation through the humidity sensor.

4. The device for directional collection of condensation from electrical appliances according to claim 2, characterized in that, A conduit is provided at the outlet, the conduit is grounded, and the condensate flows into the conduit through the water collection tank and is discharged with the conduit. A removable water collection tank is provided at the outlet, and the condensation flows into the water collection tank through the water collection trough.

5. The device for directional collection of condensation from electrical appliances according to claim 1, characterized in that, The positive electrode hydrophilic layer is a conductive and water-permeable membrane modified with graphene, carbon nanotubes or nano copper powder, and the material of the water-permeable membrane is polytetrafluoroethylene, polyvinyl alcohol, chitosan or polyetherimide. The insulating and absorbent layer is at least one insulating and permeable material selected from polymer film, textiles, and sponge. The material used for the negative electrode hydrophobic electrode layer is at least one of copper mesh or aluminum mesh coated with metal.

6. The device for directional collection of condensation from electrical appliances according to claim 2, characterized in that, The positive electrode layer is a graphene oxide polyvinyl alcohol hydrophilic conductive film, the insulating and absorbent layer is an insulating sponge, and the negative electrode layer is a copper mesh hydrophobic negative electrode film. The graphene oxide polyvinyl alcohol hydrophilic conductive film, the insulating sponge, and the copper mesh hydrophobic negative electrode film are arranged in a square of the same size and bonded together in sequence. The graphene oxide polyvinyl alcohol hydrophilic conductive film is connected to the positive electrode of the power supply unit, and the negative electrode layer is connected to the negative electrode of the power supply unit.

7. The device for directional collection of condensation from electrical appliances according to claim 1, characterized in that, The external dimensions of the directional transmission unit are adapted to the location where condensation occurs.

8. A method for preparing a device for directional collection of condensation from electrical appliances, used in the preparation of the device for directional collection of condensation from electrical appliances as described in any one of claims 1 to 7, characterized in that, include: S1: Prepare the positive hydrophilic electrode layer; S2: Fabrication of the negative hydrophobic electrode layer; S3: Prepare an insulating and absorbent layer, and then attach the positive hydrophilic electrode layer, the insulating and absorbent layer, and the negative hydrophobic electrode layer in sequence. S4: Prepare a water collection layer and assemble the water collection layer onto the drainage side of the negative hydrophobic electrode layer.

9. The method for preparing the device for directional collection of electrical condensation according to claim 8, characterized in that, Step S1 includes preparing a graphene oxide polyvinyl alcohol hydrophilic conductive film to be used as the positive electrode hydrophilic electrode layer, specifically the following steps: S11: Add graphene oxide to methanol solution at a mass ratio of 1:199, and disperse the graphene oxide evenly by sonication for 30-50 minutes for later use. S12: Pour polyethylene glycol and tannic acid into an aqueous solution of graphene oxide, stir at 70-80°C for 2 hours, and then pour into a preheated mold at 90°C for 25 hours to form. S13: The formed film is naturally air-dried at 20°C for two days to obtain a graphene oxide polyvinyl alcohol film. It is then cut according to the preset size and cleaned with oxygen plasma to ensure that the film is a hydrophilic film. The connecting wires are kept in positive contact with the power supply unit. Step S2 includes the preparation of a copper mesh hydrophobic negative electrode film as the negative electrode hydrophobic electrode layer, specifically the following steps: S21: Polish the copper mesh with sandpaper to remove surface copper rust, and then ultrasonically clean it by soaking it in ethanol and water respectively; S22: A nickel layer is deposited on the copper mesh using magnetron sputtering, which protects the copper mesh and modifies its wettability to ensure it is a hydrophobic electrode; S23: Cut the copper mesh to the same size as the graphene oxide polyvinyl alcohol hydrophilic conductive film, and connect the connecting wire to the negative terminal of the power supply unit; Step S3 specifically includes: S31: The insulating sponge is used as the insulating absorbent layer, the humidity sensing device is attached to one side of the hydrophilic film electrode, and the hydrophilic film electrode is bonded together with the intermediate insulating sponge and the hydrophobic film electrode with conductive adhesive and pressed firmly. S32: The power supply unit is attached to one side of the water collection layer, and the water collection layer is attached to the negative hydrophobic electrode layer. The interface is sealed with sealant to prevent water leakage. Step S4 specifically includes: S41, a drain outlet is provided in the water collection layer, and the drain outlet is adapted to be connected to a grounding conduit or a water collection tank.

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