Clothes care cabinet, manufacturing process and clothes care method

Abstract

The invention belongs to the technical field of clothes treatment equipment, and discloses a clothes care cabinet, a manufacturing process and a clothes care method.The clothes care cabinet is provided with a care cavity for containing clothes to be cared and an air supply unit for supplying wet air into the care cavity; a piezoelectric coating made of nanometer piezoelectric materials is arranged in the nursing cavity and / or the air supply unit, and the piezoelectric coating generates potential difference under the friction / impact effect of wet air flowing. According to the clothes care cabinet, when the clothes care cabinet works, wet air can be used for rubbing / impacting the piezoelectric coating, the nanometer piezoelectric material is excited to generate potential difference under the passive and consumption-free condition, then the wet air is electrolyzed to generate oxidation active substances, and the oxidation active substances make contact with clothes, so that the care effects of sterilization and peculiar smell removal can be achieved; the energy consumption of clothes care is saved, and meanwhile, consumables such as aromatherapy or volatile antibacterial agents do not need to be consumed.

Description

Technical Field

[0001] This invention belongs to the technical field of clothing treatment equipment, specifically, it relates to a clothing care cabinet, manufacturing process, and clothing care method. Background Technology

[0002] A garment care cabinet is a garment processing device that eliminates odors, removes wrinkles, and dries clothes. With the continuous improvement of living standards and the awakening of consumers' modern awareness, garment care cabinets are gradually becoming a part of people's lives.

[0003] Existing garment care cabinets typically deodorize and care for clothes by releasing aromatherapy, and some also release volatile antibacterial agents for sterilization. However, these aromatherapy or antibacterial agents are consumable items that need to be replaced regularly, resulting in continuous costs for users. Furthermore, the need to regularly replace these consumables is inconvenient for users, especially if they forget to replace them on time, leading to unsatisfactory garment care results.

[0004] On the other hand, most fragrances and antibacterial agents require heating to promote volatilization before they can come into contact with clothing and achieve the desired care effect. Heating to volatilize fragrances or antibacterial agents adds extra energy consumption to the clothing care process, resulting in high energy consumption and further increasing the cost of garment care.

[0005] In view of this, the present invention is hereby proposed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a clothing care cabinet, manufacturing process and clothing care method that can achieve the effect of sterilization and deodorization of clothing without the need for a power source or additional consumables.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0008] The first aspect of the present invention provides a garment care cabinet having a care chamber for placing garments to be cared for, and an air supply unit for supplying humid air into the care chamber. The care chamber and / or the air supply unit are provided with a piezoelectric coating having nano-piezoelectric material, and the piezoelectric coating generates a potential difference under the friction / impact of the humid air flow.

[0009] Furthermore, the air supply unit includes an air duct communicating with the nursing chamber, and a fan that drives humid air into the nursing chamber through the air duct;

[0010] The piezoelectric coating is disposed on the fan and / or on the inner wall of the duct.

[0011] Furthermore, the fan has a rotatable impeller, and a piezoelectric coating disposed on the fan is attached to the surface of the impeller;

[0012] And / or, the piezoelectric coating disposed on the inner wall of the air duct is distributed at least in the area near the air outlet end of the air duct.

[0013] Furthermore, the air supply unit includes an air duct communicating with the nursing chamber, and the air outlet of the air duct is connected to the air inlet of the nursing chamber; the piezoelectric coating is disposed at the air inlet.

[0014] Furthermore, the piezoelectric coating is attached to the inner wall of the nursing chamber;

[0015] Preferably, the inner wall of the nursing chamber is completely covered by the piezoelectric coating.

[0016] A second aspect of the present invention provides a manufacturing process for the aforementioned garment care cabinet, comprising the following steps:

[0017] (1) Dissolve the polymer material in an organic solvent to form a solution;

[0018] (2) Add nano-piezoelectric material to the solution obtained in step (1) and disperse it evenly to form a dispersion;

[0019] (3) The dispersion is coated into the nursing chamber and / or air supply unit to form a coating;

[0020] (4) Spray pure water onto the coating to reverse the flow and form a piezoelectric coating that adheres to the nursing chamber and / or the air supply unit.

[0021] Preferably, the polymer material is selected from polyvinylidene fluoride-hexafluoroethylene (PVDF-HFP), polyvinylidene fluoride (PVDF), polyvinyl fluoride (P(VDF-TrFE)), polyvinyl chloride (PVC), or polydimethylsiloxane (PDMS);

[0022] Preferably, the organic solvent is selected from N-methylpyrrolidone (NMP), N,N-dimethylacetamide (DMAC), N,N-diethylformamide (DEMF), 1,4-dioxane, toluene, acetone or acetonitrile.

[0023] Further, in step (1), the ratio of the polymer material to the organic solvent is 1g:15-20mL, preferably 1g:18mL;

[0024] Preferably, the polymer material is polyvinylidene fluoride-hexafluoroethylene, wherein the molar percentage of hexafluoroethylene is 5% to 20%.

[0025] In one specific embodiment, the polymer material is selected as polyvinylidene fluoride-hexafluoroethylene sheet, which is dissolved in N,N-dimethylacetamide (DMAC) at 70-90°C and stirred for 1-3 hours to form a solution;

[0026] Preferably, the dissolution temperature is 80℃ and the stirring time is 2 hours.

[0027] Furthermore, in step (2), the mass percentage of the nanopiezoelectric material in the dispersion is 10% to 40%, preferably 20%.

[0028] As one specific implementation, the nanopiezoelectric material is added to the solution obtained in step (1) in proportion and then ultrasonically treated to form a uniform dispersion.

[0029] Further, in step (3), the coating amount of the dispersion is 5-20 mL / 100 cm³. 2 Preferably 10mL / 100cm 2 ;

[0030] In step (4), the spraying volume of pure water is 10–40 mL / 100 cm². 2 Preferably 20mL / 100cm 2 .

[0031] A third aspect of the present invention provides a method for clothing care using the clothing care cabinet described above, comprising:

[0032] The air supply unit operates to deliver humid air into the nursing chamber;

[0033] Moist air rubs / impacts the piezoelectric coating, causing a potential difference to be generated in the piezoelectric coating;

[0034] The potential difference electrolyzes humid air to generate an oxidizing active substance, which then comes into contact with the clothing in the care chamber for care.

[0035] As a specific embodiment of the present invention, the nanopiezoelectric material is composed of transition metal sulfides, transition metal selenides, or transition metal tellurides. For example, the nanopiezoelectric material includes nano MoS2 crystals, nano CrSe2 crystals, nano CrTe2 crystals, nano SnS2 crystals, nano NbSe2 crystals, nano TaS2 crystals, or nano TaSe2 crystals.

[0036] In another specific embodiment of the present invention, the nanopiezoelectric material is composed of an ABO3 type compound, for example, the nanopiezoelectric material includes nano BaTiO3 particles, nano BiFeO3 particles, nano BiOIO3 particles or nano SrZrO3 particles.

[0037] In one specific embodiment, the particle size of the nanopiezoelectric material is 10–100 nm.

[0038] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0039] In this invention, when the garment care cabinet is in operation, the air supply unit delivers humid air into the care chamber. The humid air generates friction / impact on the piezoelectric coating within the chamber, exciting the nano-piezoelectric materials and creating a potential difference. This electrolyzes the moisture in the humid air, producing oxidizing active substances. These oxidizing active substances diffuse within the care chamber and come into contact with the garments, achieving sterilization and deodorization. Alternatively, as humid air flows through the air supply unit, it generates friction / impact on the piezoelectric coating, producing oxidizing active substances. These substances enter the care chamber with the humid air and come into contact with the garments, achieving sterilization and deodorization. No additional fragrance or antibacterial agents are needed during the garment care process; sterilization and deodorization are achieved without any external power source or consumables.

[0040] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0041] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0042] Figure 1 These are schematic diagrams of the garment care cabinets in Embodiments 1 and 2 of the present invention;

[0043] Figure 2 These are front views of the garment care cabinets in embodiments 1 and 2 of the present invention;

[0044] Figure 3 This is the present invention. Figure 2 Schematic diagram of section AA;

[0045] Figure 4 These are schematic diagrams of the garment care cabinet in embodiments 3 and 4 of the present invention;

[0046] Figure 5 These are schematic diagrams of the air intake grille in embodiments 3 and 4 of the present invention;

[0047] Figure 6 This is the present invention. Figure 5 Enlarged view of point B in the middle;

[0048] Figure 7 These are schematic diagrams of the garment care cabinet in embodiments 5-8 of the present invention;

[0049] Figure 8 These are the EPR spectra of hydroxyl radicals captured by DMPO and singlet oxygen captured by TEMP in Experimental Example 1 of this invention;

[0050] Figure 9 This is the cycle life test result of the nano BaTiO3 particles in Experiment Example 1 of this invention.

[0051] In the diagram: 100, piezoelectric coating; 200, cabinet; 210, cabinet door; 300, nursing chamber; 310, air inlet; 311, air inlet grille; 320, return air inlet; 330, hanging rod; 340, fragrance box; 400, control chamber.

[0052] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0054] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0055] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0056] Example 1

[0057] like Figures 1 to 3As shown, this embodiment provides a garment care cabinet, which has a care chamber 300 for placing garments to be cared for, and an air supply unit for supplying humid air into the care chamber 300.

[0058] When the garment care cabinet in this embodiment is in operation, the air supply unit is activated to send humid air with a certain humidity into the care chamber 300. The humid air comes into contact with the garments in the care chamber 300, thereby achieving the care effect.

[0059] In one specific structure of this embodiment, the garment care cabinet has a cabinet body 200, and the front of the cabinet body 200 has an openable and closable door 210. A care chamber 300 is located inside the cabinet body 200 and is open at the front, allowing garments to be placed in or removed when the door 200 is open. An air inlet 310 is provided in the care chamber 300, and an air supply unit delivers humid air into the care chamber 300 through the air inlet 310.

[0060] In one specific implementation, a hanging rod 330 is installed on the top wall of the nursing chamber 300, allowing users to hang garments requiring care on the hanging rod 330. An air inlet 310 is located at the bottom of the nursing chamber 300, allowing humid air to flow upwards and contact the garments.

[0061] Furthermore, a return air vent 320 is provided at the bottom of the care chamber 300 to exhaust air from the care chamber 300. Specifically, in the later stage of the garment care process, the air supply unit introduces relatively dry air into the care chamber 300 through the air inlet 310, and exhausts the more humid air inside the care chamber 300 through the return air vent 320, thereby bringing the garment to a dry state suitable for direct storage.

[0062] As a specific structure, the bottom wall of the nursing chamber 300 includes a return air area near the front and an air inlet area near the rear. The return air area is horizontally positioned and has a return air inlet 320. The air inlet area extends obliquely upward from the rear side of the return air area and has an air inlet 310.

[0063] With the above structure, when humid air enters the nursing chamber 300 through the air inlet 310, it will be blown upwards towards the clothes inside the nursing chamber 300, resulting in better care.

[0064] In the preferred embodiment, an air inlet grille 311 is installed at the air inlet 310. Humid air enters the nursing chamber 300 through several strip-shaped openings on the air inlet grille 311, which helps to ensure a uniform airflow effect.

[0065] In a further embodiment, the cabinet 200 also has a control chamber 400, and the air supply unit is installed inside the control chamber 400.

[0066] As a specific structure, the control chamber 400 is located below the nursing chamber 300, and the air supply unit includes an air duct and a fan. The air duct communicates with the nursing chamber 300, and the fan is located inside the air duct to drive humid air into the nursing chamber 300.

[0067] In detail, the air outlet of the air duct is connected to the air inlet 310 of the nursing chamber 300. Humid air is discharged from the air outlet of the air duct under the drive of the fan and can enter the nursing chamber 300 through the air inlet 310.

[0068] Furthermore, the air inlet of the air duct is connected to the air return port 320 of the nursing chamber 300. When the fan is working, air circulation can be formed between the nursing chamber 300 and the air duct.

[0069] The control chamber 400 is also equipped with a steam generator, which can supply water vapor into the air duct, and then carry the water vapor into the nursing chamber 300 through the flowing air, so as to achieve the effect of sending humid air into the nursing chamber 300.

[0070] In the later stages of the garment care process, the steam generator stops operating, and the condenser installed in the air duct starts. When humid air flows through the condenser, the water vapor in it condenses and then continues to flow into the care chamber 300 along the air duct. In this way, the humid air discharged from the care chamber 300 through the return air vent 320 is transformed into dry air by the condenser and then re-enters the care chamber 300, which can dry the garments in the later stages of the garment care process.

[0071] Furthermore, along the airflow direction, a heating device is also installed downstream of the condenser in the air duct. The air dried by the condenser is heated by the heating device to form hot air, which then re-enters the care chamber 300, thus achieving the drying effect on the clothes.

[0072] In one specific embodiment, the condensing device and the heating device can be an integrated heat pump device, wherein the condensing device is the evaporator of the heat pump device, and the heating device is the condenser of the heat pump device.

[0073] The garment care cabinet provided in this embodiment has a piezoelectric coating 100 with nano-piezoelectric material in the care chamber 300. When the garment care cabinet is running, the piezoelectric coating 100 generates a potential difference due to the friction / impact of the humid airflow.

[0074] In one specific embodiment, the piezoelectric coating 100 is attached to the inner wall of the nursing chamber 300.

[0075] In the above scheme, a piezoelectric coating 100 with nano-piezoelectric materials is attached to the inner wall of the care chamber 300. During the operation of the garment care cabinet, the air supply device introduces humid air into the care chamber 300. The humid air can both come into contact with and rub against the piezoelectric coating 100, and can also be blown directly onto the inner wall of the care chamber 300, generating an impact on the piezoelectric coating 100. When the piezoelectric coating 100 is subjected to friction or impact from the humid air, the nano-piezoelectric materials within it can generate a potential difference under passive and non-consumption conditions. This potential difference can electrolyze water molecules in the humid air to produce oxidizing active substances. These oxidizing active substances can oxidize and degrade microorganisms and odor molecules, thereby achieving the effect of sterilizing and deodorizing garments.

[0076] Through testing, it was found that the oxidizing active substances produced in this embodiment include at least ·OH and 1 O2 reactive free radicals.

[0077] In one specific embodiment, the nanopiezoelectric material described in this example consists of nanoscale particles, specifically transition metal sulfides, transition metal selenides, or transition metal tellurides. The nanopiezoelectric material has a particle size of 10–100 nm and exhibits high electromechanical conversion efficiency. Under conditions of minor disturbances such as water flow or air flow, it can generate a surface potential by inducing internal reversal polarization through lattice changes in the material itself, leading to changes in electron configuration. Thus, when humid air rubs or impacts the piezoelectric coating 100, the resulting surface potential can electrolyze water molecules to produce oxidizing active substances for sterilization and deodorization.

[0078] In a further embodiment of this invention, the piezoelectric coating 100 at least covers the inner surface of the sidewall of the nursing chamber 300.

[0079] Moist air is blown into the nursing chamber 300 at an upward angle, allowing it to come into contact with and rub against the side walls of the chamber 300. This friction causes the piezoelectric coating 100 to generate a potential difference. Simultaneously, because the upward-flowing moist air is not perfectly parallel to the side walls of the chamber 300, it also impacts the piezoelectric coating 100. This combination of friction and impact more effectively stimulates the generation of a potential difference in the nano-piezoelectric material, improving the efficiency of generating oxidizing active substances.

[0080] In a preferred embodiment, the inner wall of the nursing chamber 300 is completely covered by the piezoelectric coating 100. That is, the bottom wall of the nursing chamber 300 also has the piezoelectric coating 100.

[0081] Moist air inside the nursing chamber 300 is drawn into the air duct through the return air vent 320 located on the bottom wall of the nursing chamber 300, forming a piezoelectric coating 100 on the bottom wall. The moist air flowing towards the return air vent 320 impacts the piezoelectric coating 100 on the bottom wall, thereby generating a certain amount of oxidizing active substances. Furthermore, because the moist air is drawn towards the return air vent 320 by the operation of the fan, the piezoelectric coating 100 on the bottom wall of the nursing chamber 300 may experience a more significant impact, resulting in a higher efficiency in generating oxidizing active substances. Simultaneously, some moist air also flows along the bottom wall of the nursing chamber 300 towards the return air vent 320 under the suction force at the return air vent 320, thus contacting and rubbing against the piezoelectric coating 100 on the bottom wall to produce oxidizing active substances. Although the generated oxidizing active substances may be discharged from the nursing chamber 300 through the return air vent 320 along with the moist air, they will re-enter the nursing chamber 300 after passing through the air duct and come into contact with the clothing.

[0082] The garment care method implemented using the garment care cabinet provided in this embodiment includes:

[0083] The air supply unit operates to deliver humid air into the nursing chamber 300°.

[0084] The piezoelectric coating 100 on the inner wall of the humid air friction / impact nursing chamber 300 generates a potential difference in the piezoelectric coating 100.

[0085] The potential difference electrolyzes the humid air to generate an oxidizing active substance, which then comes into contact with the clothing inside the care chamber 300 to provide care.

[0086] Specifically, when the garment care cabinet in this embodiment is working, the air supply unit is activated to send humid air into the care chamber 300. The humid air flows in the care chamber 300 and comes into contact with and rubs against the piezoelectric coating 100 on the inner wall of the care chamber 300, or impacts the piezoelectric coating 100, which can excite the nano-piezoelectric materials therein to generate a potential difference. Under passive and non-consumption conditions, the water molecules in the humid air are electrolyzed to produce oxidizing active substances.

[0087] The generated oxidizing active substances can directly contact the clothing in the care chamber 300, or enter the air duct and circulate with the airflow to re-enter the care chamber 300 to contact the clothing. This can oxidize and degrade microorganisms and odor molecules, thereby achieving the effect of sterilizing and deodorizing clothing.

[0088] On the other hand, since humid air can produce oxidative active substances with bactericidal effects when it comes into contact with the inner wall of the nursing chamber 300, it can also prevent bacteria from growing on the inner wall of the nursing chamber 300, which helps to ensure the cleanliness and hygiene of the nursing chamber 300 and avoid secondary pollution of clothing.

[0089] In the above solution, the potential difference is generated by collecting the energy produced by the friction and impact of humid air on the piezoelectric coating 100, without requiring additional energy consumption. This passive input characteristic allows the garment care cabinet to sterilize and deodorize clothes without being limited by the application environment.

[0090] In a further embodiment, a fragrance box 340 is also provided on the bottom wall of the care chamber 300. If the user only needs to remove odors from the clothes, the fragrance box 340 can be omitted. However, if the user wants the clothes to have a specific fragrance after care, they can put a fragrance with a corresponding scent into the fragrance box 340 in advance. During the clothing care process, after the clothes are deodorized by the generated oxidizing active substances, the clothing care cabinet then promotes the volatilization of the fragrance through heating or other means, giving the clothes a specific fragrance.

[0091] This embodiment also provides a manufacturing process for the above-mentioned garment care cabinet, including the following steps:

[0092] (1) Dissolve the polymer material in an organic solvent to form a solution;

[0093] (2) Add nano-piezoelectric material to the solution obtained in step (1) and disperse it evenly to form a dispersion;

[0094] (3) The dispersion is coated onto the inner wall of the nursing chamber to form a coating;

[0095] (4) Spray pure water onto the coating to reverse the flow and form a piezoelectric coating that adheres to the inner wall of the nursing chamber.

[0096] In one specific implementation, in step (2), the specific components of the nanopiezoelectric material are transition metal sulfides, transition metal selenides, or transition metal tellurides.

[0097] More specifically, the nanopiezoelectric material may be nano MoS2 crystal, nano CrSe2 crystal, nano CrTe2 crystal, nano SnS2 crystal, nano NbSe2 crystal, nano TaS2 crystal, or nano TaSe2 crystal.

[0098] In one specific embodiment, the polymer material is selected from polyvinylidene fluoride-hexafluoroethylene (PVDF-HFP), polyvinylidene fluoride (PVDF), polyvinyl fluoride (P(VDF-TrFE)), polyvinyl chloride (PVC), or polydimethylsiloxane (PDMS).

[0099] In one specific embodiment, the organic solvent is selected from N-methylpyrrolidone (NMP), N,N-dimethylacetamide (DMAC), N,N-diethylformamide (DEMF), 1,4-dioxane, toluene, acetone, or acetonitrile.

[0100] In one specific implementation, in step (1), the ratio of the polymer material to the organic solvent is 1g: 15-20mL.

[0101] In one specific embodiment, the polymer material is polyvinylidene fluoride-hexafluoroethylene, wherein the molar percentage of hexafluoroethylene is 5% to 20%.

[0102] In one specific embodiment, the polymer material is selected as polyvinylidene fluoride-hexafluoroethylene sheet, which is dissolved in N,N-dimethylacetamide (DMAC) at 70-90°C and stirred for 1-3 hours to form a solution.

[0103] In one specific implementation, in step (2), the mass percentage of the nanopiezoelectric material in the dispersion is 10% to 40%, preferably 20%.

[0104] As one specific implementation, the nanopiezoelectric material is added to the solution obtained in step (1) in proportion and then ultrasonically treated to form a uniform dispersion.

[0105] In one specific embodiment, in step (3), the coating amount of the dispersion is 5-20 mL / 100 cm³. 2 In step (4), the spraying volume of pure water is 10-40 mL / 100 cm². 2 .

[0106] In a more specific plan, combined with Figures 1 to 3 As shown, an inner liner is installed inside the cabinet body 200 of the garment care cabinet, and the interior of the inner liner forms a care chamber 300.

[0107] In the overall manufacturing process of the garment care cabinet, as a specific solution, a dispersion liquid can be coated on the surface of the board used to make the inner liner first, then pure water can be sprayed to form a piezoelectric coating 100, and then the board with the piezoelectric coating 100 can be shaped into the inner liner with the side of the piezoelectric coating 100 facing the inside of the inner liner. Finally, the shaped inner liner can be installed into the cabinet body 200.

[0108] As another specific solution, the inner liner can be prefabricated first, then a dispersion liquid can be coated on the inner wall of the inner liner, and then pure water can be sprayed to form a piezoelectric coating 100. After that, the inner liner with the piezoelectric coating 100 can be installed into the cabinet 200.

[0109] As another specific solution, if feasible, the dispersion liquid can be applied after the inner liner is assembled into the cabinet 200, and then pure water is sprayed to form a piezoelectric coating 100.

[0110] In this embodiment, a piezoelectric coating 100 with nano-piezoelectric materials is provided on the inner wall of the care chamber 300 of the garment care cabinet. When humid air enters the care chamber 300, it can generate friction or impact on the piezoelectric coating 100, thereby generating a potential difference under passive and non-consumable conditions, electrolyzing the moisture in the humid air to produce oxidizing active substances. The oxidizing active substances come into full contact with the garments in the care chamber 300, and can oxidize and degrade microorganisms, odors, etc., achieving the effect of sterilization and deodorization of garments without consuming fragrances, antibacterial agents, etc.

[0111] Example 2

[0112] like Figures 1 to 3 As shown, this embodiment provides a garment care cabinet, which differs from the above embodiment 1 in that the nano-piezoelectric material is composed of an ABO3 type compound.

[0113] In one specific embodiment, the nanopiezoelectric material may be nano BaTiO3 particles, nano BiFeO3 particles, nano BiOIO3 particles, or nano SrZrO3 particles, preferably having a particle size of 10 to 100 nm.

[0114] Similar to Example 1, the nanopiezoelectric material used in this example also has high electromechanical conversion efficiency. Under conditions of minor disturbances such as water flow and air flow, the material's lattice changes cause internal reversal polarization, leading to changes in electron configuration and generating a surface potential. Thus, when humid air rubs or impacts the piezoelectric coating 100, the generated surface potential can electrolyze water molecules to produce oxidizing active substances for sterilization and deodorization.

[0115] In a further embodiment, the nanopiezoelectric material used in this embodiment is nanoparticles with an oleic acid layer on the surface, which are attached to the inner wall of the nursing chamber 300 by high-temperature sintering to form a piezoelectric coating 100.

[0116] In one specific implementation, the nanoparticles are first dispersed in a non-polar solvent to form a dispersion. Then, the dispersion is sprayed onto the inner wall of the inner liner forming the nursing chamber 300. The nanoparticles move autonomously to form a single layer. Finally, the oleic acid layer is removed by high-temperature sintering, and a piezoelectric coating 100 is formed on the inner wall of the inner liner.

[0117] Specifically, in this embodiment, the inner liner is made of metal, such as stainless steel, so that it can withstand the high-temperature sintering process.

[0118] In one specific embodiment, the metal sheet can be first formed into an inner liner, then a dispersion liquid can be sprayed on it, and then the entire inner liner can be sintered.

[0119] More specifically, the manufacturing process of the garment care cabinet includes the following steps:

[0120] (1) Disperse particulate nanopiezoelectric materials in a nonpolar solvent to obtain a dispersion;

[0121] (2) Spray the dispersion onto the inner wall of the molded inner liner;

[0122] (3) The inner liner is sintered and solidified in an oxygen-containing atmosphere to form a piezoelectric coating on the inner wall of the inner liner using nano-piezoelectric materials.

[0123] (4) After the inner liner is cooled, it is installed into the cabinet of the garment care cabinet, thus obtaining a garment care cabinet with a piezoelectric coating on the inner wall of the care chamber.

[0124] In one specific implementation, in step (1), the dispersion is prepared according to the ratio of 1 to 5 g of nano-piezoelectric material dispersed in 10 to 200 mL of non-polar solvent.

[0125] In one specific embodiment, the nonpolar solvent is toluene or hexane.

[0126] In one specific embodiment, in step (2), the amount of the dispersion sprayed onto the adhesion surface is 0.8–1.2 mL / 100 cm². 2 The spraying pressure is 0.16–0.24 MPa, the spraying distance is 12–18 cm, and the spraying angle is 72–108°.

[0127] In one specific implementation, in step (2), after the spraying is completed, the coating is left to stand for 0.8 to 1.2 hours before sintering and curing in step (3). During the standing process, the nano-piezoelectric material particles in the coating spontaneously move to form a neat monolayer arrangement, while the non-polar solvent used to prepare the dispersion evaporates.

[0128] In one specific implementation, step (3) involves sintering in an oxygen atmosphere at a temperature of 320–480°C for 3.2–4.8 hours. High-temperature sintering removes the oleic acid layer from the particle surface and allows the nanopiezoelectric material to adhere to the corresponding surface.

[0129] In another specific embodiment, a dispersion liquid can be sprayed onto a metal plate, sintered at high temperature to form a piezoelectric coating 100, and then molded into an inner liner.

[0130] More specifically, the manufacturing process of the garment care cabinet includes the following steps:

[0131] (1) Disperse particulate nanopiezoelectric materials in a nonpolar solvent to obtain a dispersion;

[0132] (2) Spray the dispersion onto the surface of the metal sheet;

[0133] (3) The metal sheet is sintered and cured in an oxygen-containing atmosphere to form a piezoelectric coating on the surface of the metal sheet by nano-piezoelectric material.

[0134] (4) The inner liner is formed from the metal sheet, with the side having the piezoelectric coating facing inward, and then installed into the cabinet of the garment care cabinet, thus obtaining a garment care cabinet with a piezoelectric coating on the inner wall of the care chamber.

[0135] The raw material components and process parameters used in steps (1) to (3) above are the same as those in the previous specific scheme, and will not be repeated here.

[0136] In this embodiment, a nano-piezoelectric material composed of ABO3 type compounds is used. The nano-piezoelectric material is firmly bonded to the inner wall of the care chamber 300 through high-temperature sintering to form a stable piezoelectric coating 100. This can achieve the same effect of sterilizing and deodorizing clothing without the use of consumables such as fragrances and antibacterial agents.

[0137] Example 3

[0138] like Figures 4 to 6 As shown, this embodiment provides a garment care cabinet, which differs from the above embodiment 1 in that: the piezoelectric coating 100 is disposed at the air inlet 310 inside the care chamber 300.

[0139] Specifically, in this embodiment, the nanopiezoelectric material in the piezoelectric coating 100 is composed of transition metal sulfides, transition metal selenides, or transition metal tellurides, with a particle size of 10–100 nm. More specifically, the nanopiezoelectric material can be nano MoS2 crystals, nano CrSe2 crystals, nano CrTe2 crystals, nano SnS2 crystals, nano NbSe2 crystals, nano TaS2 crystals, or nano TaSe2 crystals.

[0140] When the garment care cabinet is in operation, the air supply unit delivers humid air into the care chamber 300. The humid air enters the care chamber 300 through the air inlet 310. As the humid air passes through the air inlet 310, it comes into contact with the piezoelectric coating 100 at the air inlet 310, generating friction or impact. This allows the potential difference generated by the nano-piezoelectric material to generate oxidizing active substances in the humid air.

[0141] Since the humid air blows directly onto the clothes after passing through the air inlet 310, the piezoelectric coating 100 is installed at the air inlet 310. The generated oxidative active substances can come into contact with the clothes in the care chamber 300 more efficiently and fully under the influence of the humid air flow, achieving a stronger sterilization and deodorization effect.

[0142] In one specific embodiment, the piezoelectric coating 100 is disposed on the air inlet grille 311 at the air inlet 310. When humid air enters the nursing chamber 300 through the opening structure on the air inlet grille 311, the flowing humid air will generate friction or impact on the piezoelectric coating 100 on the air inlet grille 311, thereby generating an oxidizing active substance by electrolysis of water molecules in the humid air.

[0143] In one specific structure, the piezoelectric coating 100 covers at least the upper surface of the air inlet grille 311 facing the inside of the nursing chamber 300. After the humid air enters the nursing chamber 300 through the air inlet grille 311, it will come into contact with the piezoelectric coating 100 on the upper surface of the air inlet grille 311 and generate friction or impact, thereby generating oxidizing active substances in the humid air.

[0144] In the preferred structure, the peripheral walls of several opening structures on the air intake grille 311 are also provided with a piezoelectric coating 100. When humid air flows through the opening structure, it can generate a frictional effect on the piezoelectric coating 100 on the peripheral wall of the opening structure, thereby generating an oxidizing active substance in the humid air.

[0145] In this embodiment, the cross-sectional area of ​​the air duct in the air supply unit is basically the same as the opening area of ​​the air inlet 310, while the total area of ​​the opening structure on the air inlet grille 311 is significantly smaller than the opening area of ​​the air inlet 310. When humid air passes through the air inlet grille 311, the flow speed of the humid air will increase significantly, which will strengthen the frictional effect on the piezoelectric coating 100 and help increase the amount of oxidizing active substances generated.

[0146] In a more optimized structure, the lower surface of the air inlet grille 311 facing away from the nursing chamber 300 is also provided with a piezoelectric coating 100. Moist air in the duct flows towards the air inlet 310 under the drive of the fan, thus continuously impacting the lower surface of the air inlet grille 311. The piezoelectric coating 100 on the lower surface of the air inlet grille 311 can collect the impact energy of the moist air and convert it into electrical potential energy, thereby generating oxidizing active substances in the moist air. Simultaneously, the moist air impacting the lower surface of the air inlet grille 311 flows towards the opening structure on the air inlet grille 311, thus entering the nursing chamber 300. During this process, friction is also generated on the piezoelectric coating 100, further generating oxidizing active substances in the moist air.

[0147] In this embodiment, the manufacturing process of the garment care cabinet is similar to that in Embodiment 1. The difference is that a dispersion containing nano-piezoelectric materials is coated onto the air inlet grille 311 to form a coating, and then pure water is sprayed onto the coating to form a stable piezoelectric coating 100. After that, the air inlet grille 311 with the piezoelectric coating 100 is installed at the air inlet 310.

[0148] The garment care method implemented using the garment care cabinet provided in this embodiment includes:

[0149] The air supply unit operates to deliver humid air into the nursing chamber 300°.

[0150] The friction / impact of humid air on the piezoelectric coating 100 of the air inlet grille 311 causes a potential difference to be generated in the piezoelectric coating 100.

[0151] The potential difference electrolyzes the humid air to generate an oxidizing active substance, which then comes into contact with the clothing inside the care chamber 300 to provide care.

[0152] Specifically, when the garment care cabinet in this embodiment is working, the air supply unit starts to send humid air into the care chamber 300. When the humid air enters the care chamber 300 through the air inlet 310, it comes into contact with and rubs against the piezoelectric coating 100 on the air inlet grille 311, or impacts the piezoelectric coating 100, which can excite the nano-piezoelectric material therein to generate a potential difference. Under passive and non-consumption conditions, the water molecules in the humid air are electrolyzed to produce oxidizing active substances.

[0153] The generated oxidizing active substances are directly blown into the clothing inside the care chamber 300 by the humid air, thus contacting the clothing and oxidizing and degrading microorganisms and odor molecules, achieving the effect of sterilization and deodorization. At the same time, the oxidizing active substances in the humid air diffuse within the care chamber 300 and come into contact with the inner wall of the care chamber 300, which can prevent the growth of bacteria on the inner wall of the care chamber 300, helping to ensure the cleanliness and hygiene of the care chamber 300 and avoiding secondary contamination of the clothing.

[0154] In a further embodiment, the garment care cabinet can also be combined with the garment care cabinet provided in Embodiment 1. That is, a piezoelectric coating 100 can be provided on the inner wall of the care chamber 300 and the air inlet grille 311, thereby increasing the amount of oxidizing active substances generated and further enhancing the sterilization and deodorization care effect on garments.

[0155] In this embodiment, a piezoelectric coating 100 is provided at the air inlet 310 where humid air enters the care chamber, so that the humid air carries the oxidizing active material when passing through the air inlet 310. Then, the humid air carrying the oxidizing active material blows directly onto the clothes and makes full contact with them, ensuring the sterilization and deodorization care effect.

[0156] Example 4

[0157] like Figures 4 to 6 As shown, this embodiment provides a garment care cabinet, which differs from the above embodiment 3 in that the nano-piezoelectric material is composed of an ABO3 type compound.

[0158] In one specific embodiment, the nanopiezoelectric material may be nano BaTiO3 particles, nano BiFeO3 particles, nano BiOIO3 particles, or nano SrZrO3 particles, preferably having a particle size of 10 to 100 nm.

[0159] More specifically, the solution in this embodiment is similar to that in Embodiment 2. The nanopiezoelectric material uses nanoparticles with an oleic acid layer on their surface, which are attached to the air inlet grille 311 by high-temperature sintering to form a piezoelectric coating 100. To accommodate the high-temperature sintering process, the air inlet grille 311 in this embodiment is made entirely of metal, or a metal accessory with the piezoelectric coating 100 can be installed on the body of the air inlet grille 311.

[0160] As a specific solution, the air intake grille 311 is made entirely of metal, and its manufacturing process includes the following steps:

[0161] (1) Disperse particulate nanopiezoelectric materials in a nonpolar solvent to obtain a dispersion;

[0162] (2) Spray the dispersion onto the air inlet grille;

[0163] (3) The air intake grille is sintered and cured in an oxygen-containing atmosphere to form a piezoelectric coating on the surface of the air intake grille with nano-piezoelectric material. After cooling, the air intake grille with the piezoelectric coating is obtained.

[0164] The raw material components and process parameters used in steps (1) to (3) above are the same as those in Example 2, and will not be repeated here. After sintering is completed, wait for the air inlet grille 311 to cool down, and then install it into the air inlet 310 in the nursing chamber 300.

[0165] As another specific embodiment, the air intake grille 311 includes a body made of plastic or other materials, and metal attachments mounted on the body. The metal attachments may be small metal sheets fixed to the surface of the air intake grille 311 body and arranged in an array. Alternatively, the metal attachments may be a metal cladding layer wrapped around the surface of the air intake grille 311 body.

[0166] The air intake grille 311 having the above structure is manufactured using a manufacturing process including the following steps:

[0167] (1) Disperse particulate nanopiezoelectric materials in a nonpolar solvent to obtain a dispersion;

[0168] (2) Spray the dispersion onto the metal attachment;

[0169] (3) The metal attachments are sintered and cured in an oxygen-containing atmosphere to form a piezoelectric coating on the surface of the metal attachments using nano-piezoelectric materials.

[0170] (4) After the sintered metal accessory is cooled, it is fixed to the air intake grille body with the piezoelectric coating facing away from the air intake grille body, thus obtaining an air intake grille with a piezoelectric coating.

[0171] The raw material components and process parameters used in steps (1) to (3) above are the same as those in Example 2, and will not be repeated here. After the metal accessories are fixed to the body of the air inlet grille 311, the air inlet grille 311 can be installed as a whole at the air inlet 310 in the nursing chamber 300.

[0172] Example 5

[0173] like Figure 7 As shown, this embodiment provides a garment care cabinet, which differs from the above embodiments 1 or 3 in that the piezoelectric coating is disposed in the air supply unit.

[0174] Specifically, in this embodiment, the nanopiezoelectric material in the piezoelectric coating is composed of transition metal sulfides, transition metal selenides, or transition metal tellurides, with a particle size of 10–100 nm. More specifically, the nanopiezoelectric material can be nano MoS2 crystals, nano CrSe2 crystals, nano CrTe2 crystals, nano SnS2 crystals, nano NbSe2 crystals, nano TaS2 crystals, or nano TaSe2 crystals.

[0175] When the garment care cabinet is in operation, the air supply unit delivers humid air into the care chamber 300. As the humid air flows through the air supply unit, it rubs against or impacts the piezoelectric coating within the unit, thereby electrolyzing water molecules in the humid air using the resulting potential difference to generate oxidizing active substances. The humid air then carries these oxidizing active substances into the care chamber 300, where they come into contact with the garments, providing a sterilizing and deodorizing effect.

[0176] In one specific embodiment of this invention, the piezoelectric coating is applied to the fan of the air supply unit.

[0177] Specifically, the fan has a rotatable impeller, and the piezoelectric coating is attached to the surface of the impeller.

[0178] In one specific structure, the piezoelectric coating is attached to at least several blade surfaces of the impeller. After the fan starts, the impeller rotates within the duct, driving humid air to continuously flow through the duct. This causes the impeller blades to continuously contact the humid air, and the piezoelectric coating on them is subjected to continuous friction and impact from the humid air, thereby generating a potential difference.

[0179] In a preferred configuration, the piezoelectric coating adheres to all surfaces of the impeller; that is, all surfaces of the impeller are covered with the piezoelectric coating. Thus, when humid air passes through any part of the impeller, it can come into contact with the piezoelectric coating, thereby exerting a frictional or impact effect on it.

[0180] In this embodiment, the manufacturing process of the garment care cabinet is similar to that in Embodiment 1. The difference is that a dispersion containing nano-piezoelectric materials is coated onto the impeller of the fan, and then pure water is sprayed onto the coating to form a stable piezoelectric coating. After that, the impeller with the piezoelectric coating is installed in the corresponding position in the air duct.

[0181] The garment care method implemented using the garment care cabinet provided in this embodiment includes:

[0182] The air supply unit operates to deliver humid air into the nursing chamber 300°.

[0183] Humid air friction / impact on the piezoelectric coating on the fan impeller causes a potential difference to be generated in the piezoelectric coating;

[0184] The potential difference electrolysis of humid air generates an oxidizing active substance, which enters the nursing chamber 300 with the humid air and comes into contact with the clothing inside the nursing chamber 300 for care.

[0185] Specifically, when the garment care cabinet in this embodiment is working, the fan in the air supply unit starts, driving the humid air in the air duct to flow into the care chamber 300. When the humid air passes through the impeller in the air duct, it comes into contact with and rubs against the piezoelectric coating on the impeller, or impacts the piezoelectric coating, which can excite the nano-piezoelectric material therein to generate a potential difference, causing the water molecules in the humid air to be electrolyzed to produce oxidizing active substances under passive and non-consumption conditions.

[0186] The generated oxidizing active substances are carried into the care chamber 300 by the flow of humid air, directly blowing onto the clothing inside. Upon contact with the clothing, these substances oxidize and degrade microorganisms and odor molecules, achieving a sterilizing and deodorizing effect. Simultaneously, the oxidizing active substances in the humid air diffuse within the care chamber 300, contacting the inner walls and preventing bacterial growth. This helps maintain the cleanliness and hygiene of the care chamber 300, avoiding secondary contamination of the clothing.

[0187] In a further embodiment, the garment care cabinet can also be combined with the garment care cabinet provided in Embodiment 1 or 3. That is, the care chamber 300 can also be provided with a piezoelectric coating, for example, on the inner wall of the care chamber 300, and / or on the air inlet grille 311 at the air inlet 310, thereby increasing the amount of oxidizing active substances generated and further enhancing the sterilization and deodorization care effect on the garments.

[0188] In this embodiment, the humid air carries the oxidizing active material as it flows through the air supply unit. This oxidizing active material enters the care chamber 300 with the humid air and blows directly onto the clothing, ensuring full contact and guaranteeing sterilization and deodorization effects. Because the impeller rotates continuously during fan operation, and a piezoelectric coating is applied to its surface, the contact between the humid air and the rotating impeller enhances the friction / impact effect, better stimulating the nano-piezoelectric material to generate a potential difference.

[0189] Example 6

[0190] like Figure 7 As shown, this embodiment provides a garment care cabinet, which differs from the above embodiment 5 in that the nano-piezoelectric material is composed of an ABO3 type compound.

[0191] In one specific embodiment, the nanopiezoelectric material may be nano BaTiO3 particles, nano BiFeO3 particles, nano BiOIO3 particles, or nano SrZrO3 particles, preferably having a particle size of 10 to 100 nm.

[0192] More specifically, the scheme in this embodiment is similar to that in Embodiment 2. The nanopiezoelectric material uses nanoparticles with an oleic acid layer on their surface, which are attached to the impeller to form a piezoelectric coating through high-temperature sintering. To accommodate the high-temperature sintering process, the impeller in this embodiment is made of metal.

[0193] In one specific embodiment, the manufacturing process of the garment care cabinet includes the following steps:

[0194] (1) Disperse particulate nanopiezoelectric materials in a nonpolar solvent to obtain a dispersion;

[0195] (2) Spray the dispersion onto the impeller surface;

[0196] (3) The impeller is sintered and cured in an oxygen-containing atmosphere to form a piezoelectric coating on the impeller with nano-piezoelectric material;

[0197] (4) After the sintered impeller is cooled, it is installed in the air duct to obtain a clothing care cabinet with a piezoelectric coating for the air supply unit.

[0198] The raw material components and process parameters used in steps (1) to (3) above are the same as those in Example 2, and will not be repeated here.

[0199] Example 7

[0200] like Figure 7As shown, this embodiment provides a garment care cabinet, which differs from the above embodiment 5 in that: the piezoelectric coating is disposed on the inner wall of the air duct in the air supply unit.

[0201] Specifically, in this embodiment, the nanopiezoelectric material in the piezoelectric coating is composed of transition metal sulfides, transition metal selenides, or transition metal tellurides, with a particle size of 10–100 nm. More specifically, the nanopiezoelectric material can be nano MoS2 crystals, nano CrSe2 crystals, nano CrTe2 crystals, nano SnS2 crystals, nano NbSe2 crystals, nano TaS2 crystals, or nano TaSe2 crystals.

[0202] When the garment care cabinet is in operation, the air supply unit delivers humid air into the care chamber 300. The fan drives the humid air along the air duct into the care chamber, causing friction or impact on the piezoelectric coating on the inner wall of the air duct. This generates a potential difference that electrolyzes water molecules in the humid air, producing an oxidizing active substance. The humid air then carries this oxidizing active substance into the care chamber 300, where it comes into contact with the garments, providing a sterilizing and deodorizing effect.

[0203] In one specific embodiment, the piezoelectric coating is distributed at least in the area near the air outlet of the air duct.

[0204] On one hand, humid air comes into contact with the piezoelectric coating near the air outlet of the duct, generating friction or impact on the coating and thus producing oxidizing active substances. After carrying the oxidizing active substances, the humid air quickly enters the care chamber 300 and comes into contact with the clothing, ensuring that the generated oxidizing active substances fully act on the clothing inside the care chamber 300.

[0205] On the other hand, when humid air flows to the outlet of the air duct, it needs to pass through the air inlet grille 311 at the air inlet 310 to enter the nursing chamber 300. Because the area through which humid air can pass is drastically reduced at the air inlet grille 311, irregular flow of humid air may occur near the outlet of the air duct. Providing a piezoelectric coating near the outlet of the air duct allows the coating to be subjected to stronger friction or impact from the humid air, thereby helping to increase the generation of oxidizing active substances.

[0206] In the preferred configuration, the inner wall of the air duct is completely covered by the piezoelectric coating. Thus, when humid air flows along the air duct, it can come into contact with the piezoelectric coating at various points within the duct, generating friction or impact on the coating and further increasing the amount of oxidizing active substances generated.

[0207] In this embodiment, the manufacturing process of the garment care cabinet is similar to that in Embodiment 1, except that a dispersion containing nano-piezoelectric materials is coated onto the inner wall of the air duct, at least in the area near the air outlet. Then, pure water is sprayed onto the coating to form a stable piezoelectric coating, and the air duct with the piezoelectric coating can be installed into the control chamber 400 at the bottom of the cabinet 200.

[0208] The garment care method implemented using the garment care cabinet provided in this embodiment includes:

[0209] The air supply unit operates to deliver humid air into the nursing chamber 300°.

[0210] Humid air rubs against / impacts the piezoelectric coating on the inner wall of the air duct, causing a potential difference to be generated in the piezoelectric coating;

[0211] The potential difference electrolysis of humid air generates an oxidizing active substance, which enters the nursing chamber 300 with the humid air and comes into contact with the clothing inside the nursing chamber 300 for care.

[0212] Specifically, when the garment care cabinet in this embodiment is working, the fan in the air supply unit starts, driving the humid air in the air duct to flow into the care chamber 300. When the humid air flows in the air duct, it comes into contact with and rubs against the piezoelectric coating on the inner wall of the air duct, or impacts the piezoelectric coating, which can excite the nano-piezoelectric material therein to generate a potential difference, causing the water molecules in the humid air to be electrolyzed to produce oxidizing active substances under passive and non-consumption conditions.

[0213] The generated oxidizing active substances are carried into the care chamber 300 by the flow of humid air, directly blowing onto the clothing inside. Upon contact with the clothing, these substances oxidize and degrade microorganisms and odor molecules, achieving a sterilizing and deodorizing effect. Simultaneously, the oxidizing active substances in the humid air diffuse within the care chamber 300, contacting the inner walls and preventing bacterial growth. This helps maintain the cleanliness and hygiene of the care chamber 300, avoiding secondary contamination of the clothing.

[0214] In a further embodiment, the garment care cabinet can also be combined with the garment care cabinets provided in embodiments 1, 3, or 5. That is, the care chamber 300 can also be provided with a piezoelectric coating, for example, on the inner wall of the care chamber 300, and / or on the air inlet grille 311 at the air inlet 310. And / or, the fan of the air supply unit can also be provided with a piezoelectric coating. In this way, the amount of oxidizing active substances generated can be increased, further enhancing the antibacterial and deodorizing care effect on garments.

[0215] In this embodiment, when humid air flows through the air duct, it can generate friction or impact on the piezoelectric coating on the inner wall of the air duct, thereby generating oxidizing active substances in the humid air. This also achieves the sterilization and deodorization effect on clothing under passive and non-consumption conditions.

[0216] Example 8

[0217] like Figure 7 As shown, this embodiment provides a garment care cabinet, which differs from the above embodiment 7 in that the nano-piezoelectric material is composed of an ABO3 type compound.

[0218] In one specific embodiment, the nanopiezoelectric material may be nano BaTiO3 particles, nano BiFeO3 particles, nano BiOIO3 particles, or nano SrZrO3 particles, preferably having a particle size of 10 to 100 nm.

[0219] More specifically, the solution in this embodiment is similar to that in Embodiment 2. The nanopiezoelectric material uses nanoparticles with an oleic acid layer on their surface, which are attached to the inner wall of the air duct through high-temperature sintering. The air duct in this embodiment is made of metal, which can adapt to the high-temperature sintering process.

[0220] In one specific embodiment, the manufacturing process of the garment care cabinet includes the following steps:

[0221] (1) Disperse particulate nanopiezoelectric materials in a nonpolar solvent to obtain a dispersion;

[0222] (2) Spray the dispersion onto the inner wall of the air duct;

[0223] (3) The air duct is sintered and solidified in an oxygen-containing atmosphere to form a piezoelectric coating on the inner wall of the air duct using nano-piezoelectric materials.

[0224] (4) After the sintered air duct is cooled, it is installed in the control chamber of the garment care cabinet to obtain a garment care cabinet with a piezoelectric coating on the inner wall of the air duct.

[0225] The raw material components and process parameters used in steps (1) to (3) above are the same as those in Example 2, and will not be repeated here.

[0226] In a further embodiment, in step (2), the dispersion is sprayed at least onto the area near the air outlet on the inner wall of the air duct.

[0227] Example 9

[0228] This embodiment is a further limitation of embodiments 1, 3, 5, or 7 above, wherein the nanopiezoelectric material used is specifically nano MoS2 crystal, which is prepared by the following method:

[0229] a) Dissolve Na2MoO4·2H2O and CH4N2S in deionized water at a molar ratio of 1:5, and adjust the pH to below 1 with HCl.

[0230] b) After vigorous stirring for 1–3 hours, place the mixture in a hydrothermal reactor and heat it at 180–200°C for 20–28 hours to carry out the reaction. Then, allow it to cool naturally to room temperature and collect the solid product by centrifugation.

[0231] c) The collected solid product is washed with water and ethanol 1 to 3 times each, and then dried at 50 to 80°C for 12 to 20 hours to obtain nano MoS2 crystals.

[0232] As a specific method, the nano-MoS2 crystals are prepared by the following approach:

[0233] a) Dissolve Na2MoO4·2H2O and CH4N2S in deionized water at a molar ratio of 1:5, and adjust the pH to below 1 with HCl.

[0234] b) After vigorous stirring for 1 hour, place the mixture in a hydrothermal reactor and heat it at 200°C for 24 hours to carry out the reaction. Then, allow it to cool naturally to room temperature and collect the solid product by centrifugation.

[0235] c) The collected solid product was washed twice with water and twice with ethanol, and then dried at 60°C for 12 hours to obtain nano MoS2 crystals.

[0236] Example 10

[0237] This embodiment is a further limitation of embodiments 2, 4, 6, or 8 above, wherein the nanopiezoelectric material used is specifically BaTiO3 particles, which are prepared by the following method:

[0238] a) Solution preparation: Add 4 mmol Ba(NO3)2 to a mixed solution of 7.2 mL oleic acid and 3.6 mL oleylamine to prepare solution A; add 4.8 mmol Ti(OBu)4 to 40 mL 1-butanol to prepare solution B; add 10 mmol NaOH to 10 mL deionized water to prepare solution C.

[0239] b) Mix solutions A and B in a 100 mL hydrothermal reactor, then slowly add solution C and react at 150 °C for 18 h.

[0240] c) After the reaction is complete and cooled to room temperature, the product between the 1-butanol phase and the aqueous phase is collected with ethanol and dispersed in toluene to obtain a stable milky white colloidal solution;

[0241] d) The milky white colloidal solution is centrifuged or evaporated to separate the solid components, and then washed and dried to obtain BaTiO3 particles.

[0242] In the above scheme, solutions A and B, which contain Ba(NO3)2 and Ti(OBu)4 respectively, are first mixed, and then solution C, i.e., NaOH aqueous solution, is slowly added to slowly adjust the reaction system to an alkaline environment, thus avoiding the problem that mixing all the reaction raw materials at once can easily lead to reaction failure.

[0243] Experimental Example 1

[0244] In this experimental example, nano-BaTiO3 particles were prepared according to the preparation steps in Example 10, and their effect on generating oxidative active substances was tested.

[0245] Specifically, the prepared BaTiO3 nanoparticles were tested on a Bruker A200 spectrometer using the electron paramagnetic resonance (EPR) signals of spin-captured free radicals obtained from 5,5-dimethyl-1-pyrrolidine oxide (DMPO) and 2,2,6,6-tetramethylpiperidine (TEMP). The test results are as follows: Figure 8 As shown.

[0246] in, Figure 8 (a) is the EPR spectrum of hydroxyl radicals captured by DMPO. As can be seen from the spectrum, the intensity of the DMPO-·OH signal is 1:2:2:1, and its intensity increases with the increase of reaction time, indicating that ·OH radicals are formed during the reaction. Figure 8 (b) shows the EPR spectrum of singlet oxygen captured by TEMP. This spectrum reveals a signal intensity ratio of 1:1:1 in the TEMP solution, which is consistent with... 1 The formation of O2 is consistent with this, and similarly, with increasing reaction time, 1 The intensity of the O2 signal also increases accordingly. These results indicate that the oxidizing active substances produced by nano-BaTiO3 particles include ·OH and... 1 O2 reactive free radicals.

[0247] Furthermore, the cycle life of the nano-BaTiO3 particles was tested, and the results are as follows: Figure 9 As shown, after 50 cycles, the material's degradation efficiency for TC remains above 99%. The degradation rate increases significantly with the number of cycles. Specifically, when the number of cycles increases from 1 to 50, the kinetic rate constant k increases from 3.95 L·mg / L. -1·s -1 Increased to 4.69 L·mg -1 ·s -1 The above cycle life tests show that ·OH and 1 The signal intensity of O2 reactive free radicals increases with time, indicating that oxidative reactive substances can be continuously generated, and the material has a good cycle life. When applied to washing machines, it can achieve continuous, non-consumable generation of oxidative reactive substances, thereby enhancing the deodorizing and sterilizing effects on clothes.

[0248] This experimental example also conducted similar tests on the nano-MoS2 crystals prepared using a specific method described in Example 9. The test results show that the nano-MoS2 crystals can also generate substances including ·OH and 1 O2 reactive free radicals are oxidizing active substances.

[0249] Experimental Example 2

[0250] This experimental example uses a manufacturing process that includes the following steps to manufacture the garment care cabinet:

[0251] (1) Take 5g of polyvinylidene fluoride-hexafluoroethylene (PVDF-HFP, hexafluoroethylene molar percentage 10%) and dissolve it in 80mL of DMAC at 80℃ to form a solution;

[0252] (2) Add nano MoS2 crystals to the solution obtained in step (1), and after ultrasonic treatment, form a uniform dispersion, wherein the mass percentage of nano MoS2 crystals in the dispersion is 20%.

[0253] (3) The above dispersion is coated onto the inner wall of the air duct to form a coating, with a coating amount of 10 mL / 100 cm. 2 ;

[0254] (4) Spraying pure water onto the coating to reverse the phase and form a stable piezoelectric coating, wherein the amount of pure water sprayed is 20 mL / 100 cm². 2 This results in a garment care cabinet with a nano MoS2 crystal coating.

[0255] In the above scheme, the nano MoS2 crystals used were prepared according to the method of a specific scheme in Example 9.

[0256] This experiment tested the odor removal effect of the fabric care cabinet prepared above, as detailed below.

[0257] Clothes were stained with hot pot oil and then placed in the care chamber of the aforementioned garment care cabinet. A garment care program was run with a humidity level of 60% and a temperature of 40°C for 1 hour. After the program, the treated garments were removed, and the odor removal rate was calculated using a scoring system administered by an odor evaluator.

[0258] The clothes were then stained with perfume and placed in the care chamber of the garment care cabinet. A garment care program was run with a humidity level of 60% and a temperature of 40°C for 1 hour. After the program, the treated clothes were removed, and the odor removal rate was calculated using a scoring system provided by an odor evaluator.

[0259] Sweat-stained clothing was placed in the care chamber of the garment care cabinet, and a garment care program was run with a humidity level of 60% and a temperature of 40°C for 1 hour. After the program, the treated clothing was removed, and the odor removal rate was calculated by scoring the garments by an odor evaluator.

[0260] In this experiment, five odor evaluators scored the intensity of odors on the treated clothing from 1 to 5, with higher scores indicating lower odor intensity and better odor removal. For each odor type, the percentage of evaluators who scored between 4 and 5 was recorded as the single-test odor removal rate. The test was conducted twice, and the average of the two odor removal rates was taken as the final odor removal rate.

[0261] According to statistical calculations, the odor removal rate of the above three types of odor-contaminated clothing is no less than 90% after being treated in the clothing care cabinet.

[0262] Experimental Example 3

[0263] This experimental example uses a manufacturing process that includes the following steps to manufacture the garment care cabinet:

[0264] (1) Take 5g of polyvinylidene fluoride-hexafluoroethylene (PVDF-HFP, hexafluoroethylene molar percentage 10%) and dissolve it in 80mL of DMAC at 80℃ to form a solution;

[0265] (2) Add nano MoS2 crystals to the solution obtained in step (1), and after ultrasonic treatment, form a uniform dispersion, wherein the mass percentage of nano MoS2 crystals in the dispersion is 20%.

[0266] (3) The above dispersion is applied to the inner wall of the nursing chamber to form a coating;

[0267] (4) Spray pure water onto the coating to reverse the flow and form a stable piezoelectric coating, thus obtaining a clothing care cabinet with a nano MoS2 crystal coating on the inner wall of the care chamber.

[0268] In the above scheme, the nano MoS2 crystals used were prepared according to the method of a specific scheme in Example 9.

[0269] This experiment tested the antibacterial effect of the fabric care cabinet prepared above, as detailed below.

[0270] In this experiment, two garment care cabinets were used. One was the garment care cabinet with the nano-MoS2 crystal coating prepared above, labeled as the piezoelectric garment care cabinet, and the other was a regular garment care cabinet without the piezoelectric coating. Apart from this, the two garment care cabinets were identical in all other aspects of their structure.

[0271] Equal amounts of clothing were placed in both garment care cabinets, and the same garment care program was run. After one day, samples were taken from the inner walls of the care chambers of both cabinets using cotton swabs to collect bacteria. These samples were then spread onto LB agar plates and incubated in a biochemical incubator for 24 hours. Colony growth was then observed. Based on colony count, the piezoelectric garment care cabinet reduced bacterial residue by 90% compared to a conventional garment care cabinet.

[0272] As can be seen from the test results of the above-mentioned test examples 2 and 3, the solution of the present invention, through the clothing care cabinet with piezoelectric coating, can achieve deodorization and care of clothing without consuming fragrance, while reducing bacterial residue in the clothing care cabinet and avoiding secondary pollution of clothing.

[0273] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A garment care cabinet, comprising a care chamber for placing garments to be cared for, and an air supply unit for supplying humid air into the care chamber, characterized in that, The nursing chamber and / or air supply unit are provided with a piezoelectric coating containing nano-piezoelectric material, which generates a potential difference under the friction / impact of the humid air flow.

2. The garment care cabinet according to claim 1, characterized in that, The air supply unit includes an air duct that communicates with the nursing chamber, and a fan that drives humid air from the air duct into the nursing chamber. The piezoelectric coating is disposed on the fan and / or on the inner wall of the duct.

3. The garment care cabinet according to claim 2, characterized in that, The fan has a rotatable impeller, and a piezoelectric coating is attached to the surface of the impeller. And / or, the piezoelectric coating disposed on the inner wall of the air duct is distributed at least in the area near the air outlet end of the air duct.

4. The garment care cabinet according to any one of claims 1-3, characterized in that, The air supply unit includes an air duct that communicates with the nursing chamber, and the air outlet of the air duct is connected to the air inlet of the nursing chamber; the piezoelectric coating is disposed at the air inlet.

5. The garment care cabinet according to any one of claims 1-3, characterized in that, The piezoelectric coating is attached to the inner wall of the nursing chamber; Preferably, the inner wall of the nursing chamber is completely covered by the piezoelectric coating.

6. A manufacturing process for a garment care cabinet as described in any one of claims 1-5, characterized in that, Includes the following steps: (1) Dissolve the polymer material in an organic solvent to form a solution; (2) Add nano-piezoelectric material to the solution obtained in step (1) and disperse it evenly to form a dispersion; (3) The dispersion is coated into the nursing chamber and / or air supply unit to form a coating; (4) Spray pure water onto the coating to reverse the flow and form a piezoelectric coating that adheres to the nursing chamber and / or the air supply unit. Preferably, the polymer material is selected from polyvinylidene fluoride-hexafluoroethylene, polyvinylidene fluoride, polyvinyl fluoride, polyvinyl chloride, or polydimethylsiloxane; Preferably, the organic solvent is selected from N-methylpyrrolidone, N,N-dimethylacetamide, N,N-diethylformamide, 1,4-dioxane, toluene, acetone or acetonitrile.

7. The manufacturing process of the garment care cabinet according to claim 6, characterized in that, In step (1), the ratio of the polymer material to the organic solvent is 1g:15-20mL, preferably 1g:18mL; Preferably, the polymer material is polyvinylidene fluoride-hexafluoroethylene, wherein the molar percentage of hexafluoroethylene is 5% to 20%.

8. The manufacturing process of the garment care cabinet according to claim 6, characterized in that, In step (2), the mass percentage of the nanopiezoelectric material in the dispersion is 10% to 40%, preferably 20%.

9. A method for caring for clothes using a garment care cabinet as described in any one of claims 1-5, characterized in that, include: The air supply unit operates to deliver humid air into the nursing chamber; Moist air rubs / impacts the piezoelectric coating, causing a potential difference to be generated in the piezoelectric coating; The potential difference electrolyzes humid air to generate an oxidizing active substance, which then comes into contact with the clothing in the care chamber for care.

10. The garment care cabinet according to any one of claims 1-5, or the manufacturing process of the garment care cabinet according to any one of claims 6-8, or the garment care method according to claim 9, characterized in that, The nanopiezoelectric material is composed of transition metal sulfides, transition metal selenides, or transition metal tellurides, or is an ABO3 type compound; Preferably, the particle size of the nanopiezoelectric material is 10–100 nm.

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