Plate, air conditioner and vehicle

Abstract

The plate is suitable for being installed at an air outlet of the air conditioner, and the plate comprises a base material and a surface coating; wherein the surface coating is connected with the base material, and the surface coating has hydrophilicity. The surface coating is arranged on the surface of the base material, the surface coating has high hydrophilicity, condensate water condensed on the plate can form a water film, the water film is beneficial to rapid evaporation of water, and accumulation of the condensate water on the plate is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle air conditioning, and in particular to a panel, an air conditioner and a vehicle. Background Art

[0002] In a high temperature and high humidity environment, when the air conditioner inside the car is working and cooling the air, the cold air is blown out from the air outlet of the air conditioner through the air duct. The body of the air outlet panel exterior trim is affected by the cold air, and the product temperature is lower than the dew point temperature of the ambient air flow. Water vapor will condense on the surface of the air outlet panel exterior trim body. Alternatively, if the interior of the entire vehicle is kept in a high temperature and high humidity condition for a long time (opening the car windows in a high temperature and high humidity environment), the water vapor on the surface of the air outlet will condense into condensed water. These condensed waters gather on the frame of the air outlet, forming obvious water droplets. When they gather to a certain extent, they will drip from the frame, wet the decorative panels near the air outlet, and seriously affect the appearance. In serious cases, they will even enter the air duct from the air outlet of the air conditioner, affecting the internal electronic appliances. Moreover, such problems are common in most models, so how to solve this problem has become the key. Summary of the invention

[0003] The purpose of the present application is to provide a panel, an air conditioner and a vehicle to solve the problem of condensation water accumulation at the air outlet of the air conditioner.

[0004] To achieve the purpose of this application, this application provides the following technical solutions:

[0005] In a first aspect, the present application provides a panel suitable for installation at an air outlet of an air conditioner, wherein the panel comprises a substrate and a surface coating; wherein the surface coating is connected to the substrate, and the surface coating is hydrophilic.

[0006] In one embodiment, when the surface coating is hydrophilic, the surface coating includes hydrophilic inorganic particles.

[0007] In one embodiment, there are multiple inorganic particles, and the particle sizes or shapes of the multiple inorganic particles are not all the same.

[0008] In one embodiment, the inorganic particles are silicon dioxide.

[0009] In one embodiment, the inorganic particles include a core and a coating layer, and the coating layer is coated on the outer surface of the core.

[0010] In one embodiment, the coating layer comprises a metal oxide.

[0011] In one embodiment, the core is silicon dioxide, and the coating layer includes one or more of zinc oxide, titanium dioxide, and aluminum oxide.

[0012] In one embodiment, the particle size D of the inorganic particles is 0.1 μm to 1 μm.

[0013] In one embodiment, the contact angle α of the surface coating is less than or equal to 5°.

[0014] In one embodiment, the plate further includes an intermediate coating, and the surface coating is connected to the substrate via the intermediate coating.

[0015] In one embodiment, the sum L of the thicknesses of the surface coating and the intermediate coating is 3 μm to 8 μm.

[0016] In one embodiment, the intermediate coating includes silica particles.

[0017] In one embodiment, the surface coating and / or the intermediate coating is a light-transmitting coating having light-transmitting properties.

[0018] In a second aspect, the present application provides an air conditioner, comprising the panel as described in the first aspect.

[0019] In a third aspect, the present application provides a vehicle, comprising an air-conditioning outlet, wherein the air-conditioning outlet is located in a cabin of the vehicle, and wherein the air-conditioning outlet has a panel as described in the first aspect.

[0020] The plate provided by the present invention has a surface coating arranged on the surface of the substrate. The surface coating has high hydrophilicity and can form a water film on the condensed water condensed on the plate. The water film is conducive to the rapid evaporation of water and avoids the accumulation of condensed water on the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 is a schematic diagram of a cross-sectional structure of a panel according to an embodiment;

[0023] Figure 2 is a schematic top view of a panel according to one embodiment;

[0024] Figure 3 is a schematic diagram of a cross-sectional structure of an inorganic particle according to an embodiment;

[0025] Figure 4 is a flow chart of manufacturing a panel in one embodiment;

[0026] Figure 5 is a schematic diagram of an anti-condensation water test of a panel in Example 1;

[0027] Figure 6 It is a schematic diagram of the anti-condensation water test of the comparative panel.

[0028] Explanation of reference numerals: 1-substrate, 2-intermediate coating, 3-surface coating, 4-inorganic particles, 10-core, 20-coating layer. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0031] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this application and in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this application includes any and all combinations of one or more of the related listed items.

[0032] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0033] The following is an explanation of the names that appear in the text:

[0034] Contact angle: refers to the angle between the solid-liquid interface through the liquid interior to the gas-liquid interface at the junction of solid, liquid and gas phases.

[0035] The present invention provides a plate suitable for installation at an air-conditioning outlet, which can overcome the phenomenon in the prior art that condensed water is easily generated in the air-conditioning outlet due to large temperature difference and high humidity, and avoid condensation of water vapor at the air-conditioning outlet. Specifically, the present invention provides an air-conditioning, which includes the plate mentioned above. Alternatively, the present invention provides a vehicle, which includes an air-conditioning outlet, which is located in the cabin of the vehicle, and has the plate mentioned above at the air-conditioning outlet.

[0036] Optionally, the panel is mainly installed at the air-conditioning outlet in the vehicle's cabin. Due to the large temperature difference between the inside and outside of the car in summer and winter, especially the high humidity in the south, condensation often occurs on the surface of the air-conditioning outlet due to the alternation of hot and cold air. In severe cases, it will continue to accumulate and then drip onto the dashboard on the surface of the air-conditioning outlet or drip into the air-conditioning, affecting the appearance or internal electrical circuits.

[0037] In the prior art, sponges are mostly used to absorb the condensed water, and the condensed water will accumulate more and more, and the water droplets are difficult to evaporate in a short time. Alternatively, various modifiers, hydrolyzing agents, etc. are added to the super-hydrophilic material, and then a one-step method such as sol-gel or blending method is used to prepare a super-hydrophilic coating, and then the coating is applied to various substrates 1. The super-hydrophilic coating obtained by this method has poor adhesion to the substrate 1, and there are too many additives in the coating, which has an odor effect.

[0038] Please refer to Figure 1 The plate provided by the present invention includes a substrate 1 and a surface coating 3; wherein the surface coating 3 is connected to the substrate 1, and the surface coating 3 is hydrophilic.

[0039] Specifically, the material of the substrate 1 provided by the present invention can be plastic (such as PC / ABS / PMMA, etc.), metal, leather, etc. It can be understood that the material of the substrate 1 can be a common material at the existing air outlet of the air conditioner. The purpose of the present invention is to modify the existing substrate 1 so that the surface of the modified plate will not have water vapor condensation phenomenon, and the specific material of the substrate 1 is not limited.

[0040] The surface coating 3 may be hydrophilic. When the surface coating 3 is hydrophilic, the surface coating 3 has a high adsorption capacity for condensed water, and the condensed water formed at the air outlet of the air conditioner forms a water film on the surface coating 3, thereby quickly evaporating the water, thereby achieving the effect of removing the condensed water.

[0041] Optionally, when the surface coating 3 is hydrophobic, the gravity of the condensed water liquid is used to make the condensed water condense and roll down, so as to prevent the condensed water from condensing on the plate; and the hydrophobic property of the surface coating 3 can also play a role in cleaning surface oil and dust.

[0042] In one embodiment, the plate further includes an intermediate coating 2 , and the surface coating 3 is connected to the substrate 1 via the intermediate coating 2 .

[0043] Optionally, the intermediate coating 2 can be formed on the surface of the substrate 1 by an in-situ reaction of a precursor. In a specific embodiment, the intermediate material can be first coated on the surface of the substrate 1, and then the intermediate material can be formed into the intermediate coating 2 by a chemical reaction process. Of course, in other embodiments, the intermediate coating 2 can be set on the surface of the substrate 1 by physical solidification, that is, the intermediate material will not undergo a chemical reaction, and is only solidified by, for example, thermal curing, light curing, etc.

[0044] Optionally, the surface coating 3 can be disposed on the surface of the intermediate coating 2 by physical solidification, a surface material is coated on the surface of the intermediate coating 2, and then the surface material is solidified and formed by heat curing, light curing, etc. Moreover, the formed surface coating 3 is the outer surface of the plate, that is, the side that can directly contact the condensed water.

[0045] The intermediate coating 2 is used to provide an adhesion base for the surface coating 3, that is, to increase the adhesion of the surface coating 3 on the substrate 1, so that the surface coating 3 can form a stable film structure and protect the original surface of the substrate 1 from damage. Because, in the prior art, most surface materials have weak adhesion to the substrate 1; in order to allow the surface material to directly adhere to the substrate 1, the substrate 1 needs to be polished, and some surface materials are also corrosive; therefore, by providing the intermediate coating 2, it is possible to avoid polishing the substrate 1 and improve the adhesion of the surface coating 3, and avoid direct contact between the surface coating 3 and the substrate 1 and corrosion of the substrate 1.

[0046] In a specific embodiment, the preparation process of the intermediate coating 2 and the surface coating 3 includes but is not limited to methods such as shower coating, spray coating, brush coating, dip coating, and scraper coating. The intermediate coating 2 can be formed by methods such as high temperature curing / UV curing. The panel provided by the present invention has a hydrophilic or hydrophobic surface coating 3, so that the condensed water generated does not condense into water droplets on the surface of the substrate 1 but forms a water film.

[0047] The problem of condensed water gathering at the air outlet of the air conditioner has always existed, especially at the air outlet of the air conditioner in passenger vehicles. The panel provided by the present invention has two layers of coating, namely, an intermediate coating 2 and a surface coating 3, arranged on the surface of the substrate 1, and the intermediate coating 2 is used to enhance the adhesion of the surface coating 3 on the substrate 1, so that the surface coating 3 can be more firmly connected to the substrate 1; moreover, the surface coating 3 has a high hydrophilicity, which can make the condensed water condensed on the panel form a water film, which is conducive to the rapid evaporation of water and avoids the accumulation of condensed water at the panel.

[0048] In one implementation, please refer to Figure 2When the surface coating 3 is hydrophilic, the surface coating 3 includes hydrophilic inorganic particles 4. Specifically, the surface coating 3 is composed of a plurality of hydrophilic inorganic particles 4, such as silicon dioxide particles, zinc oxide particles, titanium dioxide particles, calcium carbonate particles, etc. It should be explained that the hydrophilic property of the inorganic particles 4 can be brought by the material itself, and the hydrophilic inorganic particles 4 can be unmodified or modified particles.

[0049] The super hydrophilic surface coating 3 is formed by hydrophilic inorganic particles 4. Water droplets at the air outlet of the air conditioner quickly form a very smooth water film after encountering the surface coating 3, thereby preventing condensation water. The micro-nano structure surface coating 3 based on inorganic particles 4 is a very effective super hydrophilic anti-fog coating.

[0050] The plate with the surface coating 3 is applied to the air outlet of the passenger car air conditioner, and the adhesion of the surface coating 3 is enhanced by the intermediate coating 2, so that the two coatings can be used on the substrate 1 such as plastic (PC / ABS / PMMA, etc.), metal and leather, etc., so that the water vapor in the air can condense on its surface to form a water film instead of water droplets. The complete spreading of the water film is conducive to the rapid evaporation of water, thereby effectively reducing or preventing the generation of condensed water. Moreover, if too much condensed water is not easy to evaporate, it will create a good breeding environment for the growth of bacteria, fungi and mold, which will eventually affect human health. In addition, dust and oil will not contaminate the substrate 1, and the water film on the surface will hinder these pollution sources, achieving the effect of self-cleaning and anti-pollution.

[0051] In one embodiment, the number of inorganic particles 4 is multiple, and the particle sizes or shapes of the multiple inorganic particles 4 are not all the same. Specifically, the surface coating 3 may include irregular inorganic particles 4, and the irregularity of the inorganic particles 4 is reflected in the different particle sizes or shapes of the particles. On the basis of the hydrophilic property, the irregular inorganic particles 4 are to increase the surface roughness of the surface coating 3, so as to better achieve the super-hydrophilic property of the surface.

[0052] In one embodiment, the inorganic particles 4 are silicon dioxide. Silicon dioxide is a typical hydrophilic inorganic material, and because its surface contains abundant hydroxyl groups, it can form hydrogen bonds with water molecules, thereby showing strong hydrophilicity.

[0053] In one implementation, please refer to Figure 3 The inorganic particles 4 include a core 10 and a coating layer 20, wherein the coating layer 20 is coated on the outer surface of the core 10, and the coating layer 20 includes a metal oxide. Specifically, the inorganic particles 4 may be modified secondary particles, including a core 10 and a coating layer 20; wherein the core 10 may be silicon dioxide, and the coating layer 20 may be a metal oxide, and the optional coating layer 20 may include titanium dioxide.

[0054] In one embodiment, the coating layer 20 includes one or more of zinc oxide, titanium dioxide, and aluminum oxide. In a specific embodiment, the inorganic particles 4 can be a micro-nano core-shell structure of silicon dioxide and zinc oxide (SiO2@ZnO), or a micro-nano core-shell structure of silicon dioxide and titanium dioxide (SiO2@TiO2), or a micro-nano core-shell structure of silicon dioxide and aluminum oxide (SiO2@Al2O3).

[0055] It can be understood that in the core-shell structure, silicon dioxide is the core 10, titanium dioxide, zinc oxide, aluminum oxide, etc. are the coating layer 20, and the coating layer 20 increases the roughness of the silicon dioxide surface (both are hydrophilic), making the silicon dioxide surface uneven to increase the contact area with water and increase hydrophilicity. In addition, zinc oxide and titanium oxide have photocatalytic super-hydrophilic properties, and can catalytically decompose surface pollutants under the action of light to achieve a self-cleaning effect.

[0056] By setting the inorganic particles 4 to a core-shell structure, the coating layer 20 increases the roughness of the silicon dioxide surface, making the surface uneven, increasing the contact area with water, and increasing hydrophilicity. In addition, zinc oxide and titanium oxide have photocatalytic super-hydrophilic properties, and can catalytically decompose surface pollutants under the action of light, achieving the effects of self-cleaning, anti-ultraviolet, antibacterial and anti-virus.

[0057] In one embodiment, the particle size D of the inorganic particles 4 is 0.1 μm to 1 μm. Optionally, the particle size D of the inorganic particles 4 can be 0.1 μm, 0.2 μm, 0.3 μm, 0.4 μm, 0.5 μm, 0.6 μm, 0.7 μm, 0.8 μm, 0.9 μm, or 1 μm. The particle size of the inorganic particles 4 is within the above range, which can ensure that the surface coating 3 has a higher roughness, thereby increasing the comparative area and reducing the difficulty of preparing the inorganic particles 4.

[0058] In one embodiment, the contact angle α of the surface coating 3 is less than or equal to 5°. It is understandable that when the contact angle is less than 90°, it indicates that the liquid can wet the surface coating 3, and the smaller the angle, the better the wettability; in this case, the liquid will spread on the solid surface to form a larger contact area.

[0059] Since the surface coating 3 has a low contact angle, the condensed water quickly forms a water film on the surface coating 3, which increases the contact area between the liquid and the air, is conducive to the rapid evaporation of water, and does not cause the condensed water to gather and flow into the ventilation duct. If water droplets or a large amount of condensed water are formed on the surface of the substrate, the water droplets are difficult to evaporate in a short time, and will enter the interior through the ventilation duct for a long time, affecting electronic devices and even breeding bacteria to produce odor.

[0060] In one embodiment, when the surface coating 3 is hydrophobic, the surface coating 3 includes fluorine element. Specifically, the surface coating 3 is composed of fluorine-containing organic matter, or fluorine-containing organic / inorganic composite. The reason why fluorine-containing organic matter has good hydrophobic properties is because of their molecular structure characteristics and surface energy properties; the fluorine atoms in fluorine-containing organic matter have extremely high electronegativity, forming very stable chemical bonds, and the surface of fluorine-containing organic matter is not easy to interact with other substances, thereby showing hydrophobic properties. In addition, the molecular chains of fluorine-containing organic matter are usually arranged very closely, forming a smooth surface, which further reduces the adhesion of water molecules on its surface; moreover, the surface energy of fluorine-containing organic matter is low, and the interaction with water molecules is weak.

[0061] In one embodiment, the surface coating 3 includes fluorine-silicon compounds. Specifically, the material of the surface coating 3 is a perfluororesin (including fluorine-silicon compounds), and the formed water droplets can slide off the surface coating 3 because the contact angle with the surface is greater than 110°, thereby reducing or preventing condensation water.

[0062] In one embodiment, the contact angle of the surface coating 3 is greater than or equal to 110°. It is understandable that if the contact angle is greater than 90°, it indicates that the liquid is not easy to wet the surface coating 3, and the larger the angle, the stronger the non-wetting property; in this case, the liquid tends to maintain a smaller contact area and form beads.

[0063] In one embodiment, the intermediate coating 2 includes silica particles and / or silicon particles. Specifically, based on the above embodiment, the intermediate material can be a silicate compound or a silicon element. The intermediate coating 2 is formed by coating a layer of silicate compound or a regular silicon layer by PVD (physical vapor deposition) on the substrate 1, and curing the intermediate material by heating or UV light. Among them, the silicate compound can form silica particles.

[0064] In one embodiment, the sum of the thicknesses L of the surface coating 3 and the intermediate coating 2 can be 3 μm to 8 μm, specifically including but not limited to 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, and 8 μm. The thickness of the two is controlled within the above range to avoid the coating being too thick to affect the appearance of the plate, and to avoid being too thin to increase the manufacturing difficulty.

[0065] In one embodiment, the surface coating 3 and / or the intermediate coating 2 are light-transmitting coatings. Specifically, the materials of the intermediate coating 2 and the surface coating 3 in the present invention are both micro-nano level, which ensures that the coating is colorless and transparent on the surface of the product. After being coated on the surface of the substrate 1, the high gloss of the substrate 1 is improved, which will not affect the normal use of the product, and greatly increases its scope of application.

[0066] In one embodiment, the present application also provides a method for manufacturing a plate, please refer to Figure 4 , specifically including the following steps:

[0067] Step S10, coating the intermediate material on the surface of the substrate, and the intermediate material forms an intermediate coating on the surface of the substrate.

[0068] Step S20, coating a surface material on the surface of the intermediate coating, and the surface material forms a surface coating on a side of the intermediate coating facing away from the substrate.

[0069] Among them, the surface coating is hydrophilic.

[0070] The common hydrophilic or hydrophobic materials on the market are mostly used on the surface of glass substrates such as anti-fog glasses and gastroscopes. However, the surface coating and preparation process used in the present invention can be used on plastic, metal and leather substrate materials after surface coating treatment, and has the characteristics of long-lasting super hydrophilicity (hydrophobicity) and high hardness.

[0071] The method provided by the present invention prepares an intermediate coating and a surface coating on a substrate, and the surface coating is reinforced by the intermediate coating, and the substrate does not need to be reprocessed. The process is simple, and the adhesion between the surface coating and the substrate is greatly enhanced. Moreover, the surface coating and the intermediate coating obtained by the preparation method can not only significantly increase the glossiness of the substrate, improve its transparency, and increase the various design senses of the appearance, but also increase the super-hydrophilic (or hydrophobic) property of the substrate surface, and prevent pollution, keep clean, resist ultraviolet rays, and disinfect and sterilize.

[0072] In one embodiment, in step S10, an intermediate material is coated on the surface of a substrate, specifically including: directly coating a layer of ethyl orthosilicate coating or a layer of PVD silicon on the substrate, and forming a regular layer of silicon dioxide or silicon on the surface of the substrate after high temperature annealing or UV treatment to increase adhesion to the substrate so that the surface coating can be better bonded to the substrate.

[0073] In one embodiment, the present invention further provides a method for obtaining an intermediate coating by curing an intermediate material at high temperature, which specifically comprises the following steps:

[0074] Step S11, pre-treating the substrate by plasma flame / UV ozone treatment / cleaning with a cleaning agent to remove surface pollutants such as oil and dust on the substrate surface and keep the surface dry.

[0075] Step S12, coating a layer of ethyl orthosilicate coating or a layer of PVD silicon material on the substrate at 120° C., and obtaining an intermediate coating after complete curing.

[0076] In one embodiment, the present invention further provides a method for UV curing an intermediate material to obtain an intermediate coating, which specifically comprises the following steps:

[0077] Step S11 ′, pre-treating the substrate by plasma flame / UV ozone treatment / cleaning with a cleaning agent to remove surface pollutants such as oil and dust on the substrate surface and keep the surface dry.

[0078] Step S12', coating the UV intermediate material on the surface of the substrate, irradiating it with a UV lamp, and curing it to obtain an intermediate coating.

[0079] The methods for making the intermediate coating provided in the above embodiments differ in the raw material formula and the curing process. However, before construction, various substrates (plastics (PC / ABS / PMMA, etc.), metals and leather, etc.) need to be surface activated by plasma flame or detergent. Then, the intermediate material is applied, followed by high temperature / UV curing. Thus, a coating with good wear resistance, hydrophilicity, anti-fouling and high gloss can be obtained.

[0080] In one embodiment, in step S20, a surface material is coated on the surface of the intermediate coating, specifically including: directly coating a layer of irregular inorganic particles or fluorine-containing organic matter on the intermediate coating, and obtaining a surface coating by heating the material, so that the inorganic particles or fluorine-containing organic matter are better connected to the intermediate coating and are not easy to fall off.

[0081] In one embodiment, the present invention further provides a method for preparing inorganic particles of a surface coating, wherein the inorganic particles are a core-shell structure of silicon dioxide and zinc oxide, and specifically comprises the following steps:

[0082] Step S21, adding the coating layer precursor into solvent A to obtain a mixed solution A, and dispersing silicon dioxide in solvent B to obtain a mixed solution B.

[0083] Step S22, gradually adding the mixed solution B into the mixed solution A for step-by-step reaction, wherein the coating layer precursor reacts on the surface of silicon dioxide to grow into a coating layer, and silicon dioxide becomes a core.

[0084] Optionally, the coating layer precursor is zinc acetate or zinc nitrate, the solvent A is dimethyl sulfoxide, and the solvent B is a mixture of ethanolamine, ethylene glycol methyl ether or (tetramethylammonium hydroxide) and ethanol.

[0085] In one embodiment, the present invention also provides a method for preparing surface coating inorganic particles, wherein the inorganic particles are a core-shell structure of silicon dioxide and titanium dioxide (or aluminum oxide), and specifically comprises the following steps:

[0086] Step S21 ′, adding the coating layer precursor into the solution of the silicon dioxide precursor, so that the silicon dioxide precursor reacts and transforms into silicon dioxide, and the coating layer precursor reacts and grows on the surface of the silicon dioxide to form a coating layer, and the silicon dioxide becomes the core.

[0087] Optionally, the coating layer precursor is titanium dioxide or aluminum oxide nanoparticles, and the silicon dioxide precursor is ethyl orthosilicate solution. Since the silicon dioxide produced by the reaction is larger in size, titanium dioxide or aluminum oxide nanoparticles will adhere to the surface of the silicon dioxide, thereby forming a core-shell structure of silicon dioxide and titanium dioxide (or aluminum oxide).

[0088] The advantages of the inorganic particles configured by the above implementation method are: the micro-nano core-shell structure has particle morphology of different sizes, and the surface of this structure increases the surface roughness of silicon dioxide, making its surface uneven; and the above metal oxides themselves are hydrophilic, which can increase the contact area with water and increase hydrophilicity; in addition, zinc oxide and titanium oxide have photocatalytic super hydrophilic properties, and can also play a role in anti-pollution, cleanliness, anti-ultraviolet rays, disinfection and sterilization under the action of light; the intermediate coating and surface coating will not affect the optical properties of the substrate product, and the water film under the hydrophilic effect can block and isolate pollutants, thereby achieving self-cleaning and anti-pollution effects.

[0089] The panel manufacturing method provided by the present invention has the following advantages: 1) an intermediate coating and a surface coating are formed on the surface of the substrate through high temperature / UV and other processes, which is simple and convenient to operate and easy to prepare on a large scale; 2) the intermediate material and the surface material are suitable for most passenger car air outlet substrates and have good adhesion; 3) the obtained surface coating exhibits superhydrophilic (less than or equal to 5°) or superhydrophobic (greater than or equal to 110°) characteristics; 4) the two coatings formed are both dense and transparent, and the visible light transmittance can reach more than 80%, which will not affect the appearance of the air outlet surface material, and can also prevent pollution, keep clean, resist ultraviolet rays, and disinfect and sterilize; 5) the materials of the two coatings are non-toxic components.

[0090] In one embodiment, the present invention further provides a vehicle, comprising the panel provided in the above embodiment, wherein the panel is installed in a cabin of the vehicle.

[0091] The technical solution of the present invention is described in detail below through specific embodiments.

[0092] Example 1

[0093] This embodiment provides a plate, including a substrate (PC plastic injection molding), an intermediate coating (silicon dioxide), and a surface coating (silicon dioxide particles); wherein the intermediate coating is obtained by thermal curing of tetraethyl orthosilicate, and the silicon dioxide particles in the surface coating are irregular particles.

[0094] The board manufacturing method of this embodiment includes:

[0095] 1) First, rinse the surface of the substrate with isopropyl alcohol to clean and activate it.

[0096] 2) TEOS is coated on the surface of the substrate and treated at 120° C. for 2 hours to form a transparent intermediate coating of silicon dioxide with regular particle size on the surface of the substrate.

[0097] 3) coating an irregular silicon dioxide layer on the intermediate coating to form a microstructured surface coating, and annealing at 80° C. for 1 hour to obtain a surface coating.

[0098] The panels of Example 1 and the comparative example were simultaneously installed at the air outlet of an air conditioner to conduct an anti-condensation water test. The panels of the comparative example were untreated PC plastic injection moldings.

[0099] The anti-condensation water test is carried out in a high temperature and high humidity environment. When the air conditioner is working and cooling, the cold air is blown out from the air outlet through the air duct. The air outlet panel is affected by the hot and cold air. The panel temperature of Example 1 and the comparative example is lower than the dew point temperature of the ambient air flow, and water vapor will condense on the panel at the air outlet.

[0100] like Figure 5 and Figure 6 As shown, if the interior of the vehicle is kept in high temperature and high humidity for a long time (with the windows open in a high temperature and high humidity environment), the water vapor on the surface of the panel provided by the comparative example will condense into condensed water. However, water droplets and water marks are obviously not seen on the surface of the panel of Example 1; this is because the water forms a water film on the surface, which spreads evenly on the surface of the substrate, and under the continuous action of the air conditioner, the spread water film is also very easy to evaporate, which has the effect of preventing the accumulation of condensed water.

[0101] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0102] What is disclosed above is only a preferred embodiment of the present application, and it certainly cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiment and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A plate, suitable for installation at the air outlet of an air conditioner, characterized in that: include: Base material; The surface coating is connected to the substrate, and the surface coating is hydrophilic.

2. The plate according to claim 1, characterized in that The surface coating includes hydrophilic inorganic particles.

3. The plate according to claim 2, characterized in that There are multiple inorganic particles, and the particle sizes or shapes of the multiple inorganic particles are not all the same.

4. The plate according to claim 2, characterized in that The inorganic particles are silicon dioxide.

5. The plate according to claim 2, characterized in that The inorganic particles include a core and a coating layer, wherein the coating layer is coated on the outer surface of the core.

6. The panel according to claim 5, characterized in that The coating layer includes metal oxide.

7. The panel according to claim 6, characterized in that The core is silicon dioxide, and the coating layer includes one or more of zinc oxide, titanium dioxide, and aluminum oxide.

8. The panel according to claim 2, characterized in that The particle size D of the inorganic particles is 0.1 μm to 1 μm.

9. The panel according to claim 2, characterized in that The contact angle α of the surface coating is less than or equal to 5°.

10. The panel according to claim 1, characterized in that The plate further comprises an intermediate coating, and the surface coating is connected to the substrate via the intermediate coating.

11. The panel according to claim 10, characterized in that The sum L of the thickness of the surface coating and the intermediate coating is 3 μm to 8 μm.

12. The panel according to claim 10, characterized in that The intermediate coating layer includes silicon dioxide.

13. The panel according to claim 10, characterized in that The surface coating and / or the intermediate coating is a light-transmitting coating with light-transmitting properties.

14. An air conditioner, characterized in that: Comprising a plate as described in any one of claims 1-13.

15. A vehicle, characterized in that: The vehicle comprises an air-conditioning outlet, wherein the air-conditioning outlet is located in a cabin of the vehicle, and the air-conditioning outlet has a panel as described in any one of claims 1-13.

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