Magnetic glass panel and refrigerator

Abstract

The application provides a magnetic glass panel and a refrigerator, and belongs to the field of glass panels. The magnetic glass panel comprises a glass substrate, and the upper surface of the glass substrate is sequentially provided with a magnetic function layer, a pattern color layer and a structural texture layer from bottom to top. The magnetic function layer comprises 1-3 layers of magnetic coating. The lower surface of the glass substrate is provided with a protective back paint layer. Through careful hierarchical structure design, the magnetic function, pattern color, structural texture and protection function are integrated on the glass panel. The magnetic refrigerator sticker effect can be achieved, the metal coating corrosion and the surface adhesive film damage can be avoided, the service life is prolonged, the glass transparent window interface display touch effect can be achieved, the additional value and user experience of the refrigerator product are improved, and the innovation in the functional integration design of the glass panel is embodied.

Description

Technical Field

[0001] This application relates to the field of glass panel technology, specifically to a magnetic glass panel and a refrigerator. Background Technology

[0002] In fields such as architectural decoration, interior design, and furniture manufacturing, the choice of panel materials is not only related to aesthetics but also affects the functionality, durability, and user experience of products. Magnetic attraction, as a convenient method of connection, fixation, or interaction, has received increasing attention in recent years. However, the variety of panel materials that can achieve magnetic attraction on the current market is limited, mainly focusing on metal sheets.

[0003] Currently, there are two main ways to achieve magnetic decorative effects on metal sheets: (1) Surface coating with decorative paint: By spraying one or more layers of decorative paint onto the surface of a metal substrate with magnetic properties, the desired color, texture, or gloss effect can be achieved. Although this method is relatively low in cost and can achieve rich colors and surface effects, since the metal substrate itself has magnetic properties, the decorative coating covering it is usually an insulating organic material that does not have anti-corrosion properties. During long-term use, especially in humid, salt spray, or chemically corrosive environments, the metal substrate is prone to electrochemical corrosion. In addition, scratches or bumps can also damage the protective barrier, causing large-area blistering and peeling of the coating, and even affecting the structural strength of the substrate and shortening the service life of the panel. (2) Surface lamination with decorative film: Using a metal sheet with magnetic properties as the substrate, a layer of decorative film, such as PVC film, PET film, wood grain paper film, etc., is pasted on the surface to achieve wood grain, stone, or other special texture effects. However, this bonding structure faces severe challenges during assembly, transportation, and daily use. The metal sheets are prone to friction or collisions with other objects during handling and installation; during use, they may also be scratched or punctured by sharp objects, resulting in scratches, cracks, or even partial detachment. The damaged film loses its protective function, exposing the underlying metal substrate, which not only affects aesthetics but also exposes it to corrosion. Furthermore, the adhesive layer between the film and the metal substrate may age and delaminate due to temperature changes, humidity fluctuations, or long-term stress, causing the film to peel and detach, severely impacting the decorative effect.

[0004] In view of this, it is necessary to design an improved magnetic glass panel and refrigerator to solve the above problems. Utility Model Content

[0005] In view of the technical problems existing in the background art, this application provides a magnetic glass panel and a refrigerator. The magnetic glass panel has a coating that adsorbs magnetic metal materials, which can achieve the effect of magnetic refrigerator magnets, avoid the corrosion of metal coating and damage to surface film, and at the same time achieve the effect of transparent glass window interface display and touch control.

[0006] In a first aspect, this application provides a magnetic glass panel, comprising a glass substrate, wherein a magnetic functional layer, a pattern color layer and a structural texture layer are sequentially disposed on the upper surface of the glass substrate from bottom to top; the magnetic functional layer comprises 1 to 3 magnetic coating layers; and a protective back paint layer is disposed on the lower surface of the glass substrate.

[0007] As a further improvement to this application, the thickness of the magnetic attraction functional layer is 0.001~1.5mm.

[0008] As a further improvement of this application, the magnetic coating is an iron-containing metal material powder with a rust-proof coating uniformly dispersed in a polyurethane transparent resin.

[0009] As a further improvement of this application, the particle size of the iron-containing metal material powder is 1~100μm, and the iron-containing metal material powder includes neodymium iron boron metal powder.

[0010] As a further improvement to this application, the thickness of the pattern color layer is 0.001~0.5mm.

[0011] As a further improvement of this application, the thickness of the structural texture layer is 0.001~0.5mm.

[0012] As a further improvement to this application, the thickness of the protective back coating layer is 0.001~0.1mm.

[0013] Secondly, embodiments of this application provide a refrigerator, including the magnetic glass panel described in the first aspect.

[0014] As a further improvement of this application, the pattern color layer and structural texture layer of the magnetic glass panel are provided with a hollow structure corresponding to the position of the refrigerator touch display function area.

[0015] The beneficial effects of this application are: This application provides a magnetic glass panel and a refrigerator. The magnetic glass panel includes a glass substrate, and the upper surface of the glass substrate is provided with a magnetic functional layer, a pattern and color layer, and a structural texture layer from bottom to top. The magnetic functional layer includes 1 to 3 layers of magnetic coating. A protective back paint layer is provided on the lower surface of the glass substrate. Through a carefully designed layered structure, this application integrates magnetic function, pattern and color, structural texture, and protective function onto the glass panel. This achieves the effect of a magnetic refrigerator magnet while avoiding corrosion of the metal coating and damage to the surface film layer. It also achieves a transparent glass window interface with touch control, enhancing the added value and user experience of the refrigerator product and demonstrating innovation in the integrated design of glass panel functions.

[0016] This application, by setting a magnetic functional layer on the glass substrate, allows magnetic items to be directly attached to the glass panel, greatly enhancing the interactivity and fun of the refrigerator panel and meeting users' needs for personalized decoration and information recording. The design places the pattern and color layer above the magnetic functional layer, with the structural texture layer on the outermost layer. This allows the panel to display rich colors and patterns while also achieving anti-glare, anti-fingerprint, or specific tactile effects through the structural texture layer. This layered design ensures the unity of visual effect and tactile experience, improving the overall aesthetics and texture of the product. A protective back coating layer on the lower surface of the glass substrate effectively prevents moisture, grease, or other chemicals inside the refrigerator from corroding or contaminating the glass substrate, while also increasing the strength and scratch resistance of the glass, thereby extending the lifespan of the glass panel and even the entire refrigerator. The magnetic glass panel design is not only suitable for refrigerators but can also be applied to other occasions requiring magnetic functionality and aesthetic durability, such as display cabinets, doors and windows, and information boards, demonstrating a certain degree of technical versatility.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in this application will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the magnetic glass panel in the embodiments of this application; Figure 2 This is a magnetic attraction effect diagram of a magnetic glass panel provided in an embodiment of this application; Explanation of reference numerals in the attached drawings: 1. Glass substrate; 21. First magnetic coating; 22. Second magnetic coating; 23. Third magnetic coating; 3. Pattern color layer; 4. Structural texture layer; 5. Protective back coating layer. Detailed Implementation

[0020] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0022] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 the embodiments of this application and simplifying the description, and are not intended to 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 limitations on the embodiments of this application.

[0025] Currently, only metal sheet decorative panels on the market can achieve a good magnetic attraction effect. Aesthetics and texture are achieved by coating the surface of the metal sheet with decorative paint or attaching a decorative film. However, after a period of use, the coating of metal sheets coated with decorative materials is prone to rust. Metal sheets with attached decorative films are easily damaged when scratched by sharp objects during assembly, transportation and daily use, which affects the decorative effect.

[0026] To address the shortcomings in aesthetics and durability of existing magnetic panels, this application provides a magnetic glass panel and refrigerator. Through a layered structural design, the magnetic function, pattern color, structural texture, and protective function are integrated into the glass panel. This achieves the effect of a magnetic refrigerator magnet while avoiding corrosion of the metal coating and damage to the surface film. It also achieves a transparent glass window interface with touch control.

[0027] Please refer to Figure 1 This is a schematic diagram of the magnetic glass panel structure provided in an embodiment of this application. It includes a glass substrate 1, which serves as the base material for the entire panel, providing necessary support and transparency, and acting as the carrier for all functional layers. The upper surface of the glass substrate 1 is provided with a magnetic functional layer, a pattern and color layer 3, and a structural texture layer 4 from bottom to top. The magnetic functional layer gives the glass excellent magnetic attraction, enabling it to attract magnetic items. The pattern and color layer 3 is located above the magnetic functional layer and carries the printing or coating of various patterns and colors, increasing the decorative and personalized nature of the panel. The structural texture layer 4 is located on the topmost layer and is used to provide specific surface textures and visual effects, enhancing the aesthetics and functionality of the panel.

[0028] The magnetic attraction layer includes 1 to 3 magnetic coating layers. Multiple magnetic coating layers can be added as needed to further enhance the magnetic attraction performance and adapt to magnetic items of different weights and types. Specifically, three magnetic coating layers are provided: the first magnetic coating 21 gives the glass substrate 1 basic magnetic attraction ability, enabling it to attract magnetic items; the second magnetic coating 22 further enhances the magnetic attraction strength and stability, ensuring better attraction effect; and the third magnetic coating 23 further enhances the magnetic attraction performance to adapt to magnetic items of different weights and types.

[0029] A protective back coating layer 5 is provided on the lower surface of the glass substrate 1 to provide protection against scratches, wear and other physical damage, and to extend the service life of the panel.

[0030] Furthermore, in this embodiment, the thickness of the magnetic attraction layer is 0.001~1.5mm. This setting helps to ensure sufficient magnetic attraction while avoiding an excessively thick coating that would result in an overly rough surface or increase the overall thickness and weight of the panel. Moderate magnetic attraction makes it easier to attract and remove magnetic items, preventing them from easily falling off or damaging the coating, thus enhancing the user experience and interactivity.

[0031] Furthermore, in this embodiment, the magnetic coating is a uniform dispersion of ferrous metal powder with a rust-preventive coating on its surface within a transparent polyurethane resin. This configuration, utilizing the high magnetic energy product of the ferrous metal powder, ensures the panel possesses sufficient magnetic attraction to reliably attract various magnetic items. The rust-preventive coating on the powder surface solves the problem of ferrous metal materials being prone to rusting, extending the service life and performance stability of the magnetic attraction layer. The rust-preventive coating includes materials such as iron oxide phenolic paint and epoxy paint containing rust-preventive pigments, which delay metal oxidation by forming a dense physical barrier or active passivation layer. The polyurethane resin, acting as a binder, provides excellent coating hardness, flexibility, and adhesion, making the magnetic attraction layer less prone to cracking and peeling, resulting in a more durable overall structure. Specifically, the solid content of the transparent polyurethane resin is ≥80%.

[0032] Furthermore, in this embodiment, the particle size of the iron-containing metal material powder is 1~100μm, and the iron-containing metal material powder includes neodymium iron boron metal powder. This configuration ensures that individual particles possess good magnetic properties, thereby forming an effective magnetic pathway in the coating and enhancing the overall magnetic attraction. This relatively fine particle size range facilitates uniform dispersion in the polyurethane resin, forming a dense and smooth coating surface, reducing porosity and defects in the coating. Simultaneously, the smaller particle size also helps improve the adhesion between the magnetic functional layer and the substrate or upper coating. Specifically, 1~10μm can form a smoother and more transparent coating, while 10~100μm can provide stronger magnetic force, and the choice can be made according to actual needs.

[0033] Furthermore, in this embodiment, the thickness of the pattern color layer 3 is 0.001~0.5mm. This setting helps to achieve the best color presentation effect visually while maintaining good transparency. An excessively thick coating may lead to cracking, reduced adhesion, or color distortion.

[0034] Furthermore, in this embodiment, the thickness of the structural texture layer 4 is 0.001~0.5mm. This setting allows for the formation of a clear surface texture, avoiding both excessive thickness leading to blurring or distortion and insufficient thickness failing to achieve the desired visual effect. This thickness range ensures good adhesion between the texture layer and the substrate, avoiding insufficient adhesion or stress concentration problems caused by excessive or insufficient thickness. This thickness range effectively resists daily friction, extending the service life of the coating.

[0035] Furthermore, in this embodiment, the thickness of the protective back coating layer 5 is 0.001~0.1mm. This design not only protects the lower surface of the glass substrate 1 from scratches, chemical corrosion, and other damage, but also serves a certain decorative or insulating function.

[0036] The coordinated design of each layer thickness helps maintain the overall flatness and structural stability of the panel, ensures good adhesion between layers, and reduces the risk of stress concentration, cracking or detachment caused by excessive or insufficient thickness, thereby improving the overall durability of the panel.

[0037] Secondly, this application also provides a refrigerator, including the magnetic glass panel described in the first aspect.

[0038] Furthermore, in this embodiment, the pattern color layer 3 and structural texture layer 4 of the magnetic glass panel are provided with a cutout structure corresponding to the location of the refrigerator's touch display function area. For areas on the refrigerator that require touch operation and information display, such as the touch screen area used for adjusting temperature, starting mode, and displaying the refrigerator's internal status, the pattern color layer 3 and structural texture layer 4 are removed or not provided, allowing the underlying touch display module to be directly exposed or interact with the user through the cutout area. Except for the touch display area, the other parts of the panel are still covered with the complete pattern color layer 3 and structural texture layer 4, maintaining the unity and aesthetics of the overall design. The cutout design allows the touch display function to be seamlessly integrated into the overall appearance design of the refrigerator, avoiding the abruptness or disjointedness that may be present with traditional touch panels. Users can conveniently perform touch operations while appreciating the overall design of the refrigerator.

[0039] The method for preparing the above-mentioned magnetic glass panel includes the following steps: S1. Select neodymium iron boron metal powder with a particle size of 1~100um and coat the surface with a layer of anti-rust coating; S2. Prepare a high-adhesion thermosetting transparent polyurethane resin material with a solid content ≥80%; S3. Mix the neodymium iron boron metal powder coated with anti-rust coating and polyurethane transparent resin at a mass ratio of 1: (1~3) and stir evenly. Then, on a clean glass surface, use a 60~100 mesh screen to print 1~3 times. The curing temperature of each coating layer is 180~200℃ and the time is 5~8 minutes to achieve magnetic attraction strength and obtain a magnetic attraction functional layer. S4. A thermosetting coating is screen-printed onto the magnetic functional layer, using a thermosetting resin (such as polyurethane, epoxy resin, or acrylic resin) as the film-forming substance. A curing agent (such as isocyanate curing agent or anhydride curing agent) is added, and the coating is heated to form a hard coating at a curing temperature of 150~200℃ for 5~10 minutes, forming the pattern color layer 3. A UV-curable coating (such as UV acrylic coating) is then rolled onto the pattern color layer 3, with a UV light source intensity of 500~2000mW / cm². 2The process involves irradiating the surface from a distance of 5-20cm for 30-60 seconds to create a structural texture layer 4. A pre-designed cutout structure is then applied to the corresponding touch display area of ​​the refrigerator. No colored paint is printed or the structural texture layer 4 is applied to these areas, ensuring their transparency. Once the coating is complete, a window is formed on the panel that allows light to pass through and enables touch operation, achieving both aesthetic decoration and the function of a cutout display touch area. Finally, a protective back coat is sprayed, and the curing temperature is 150-200℃ for 5-10 minutes.

[0040] like Figure 2 The image shown illustrates the magnetic attraction effect of a magnetic glass panel prepared according to a specific embodiment of this application. The magnetic functional layer has a thickness of 0.35 mm, the pattern color layer 3 has a thickness of 0.03 mm, the structural texture layer 4 has a thickness of 0.05 mm, and the protective back coating layer 5 has a thickness of 0.04 mm. It can be seen that the magnetic glass panel can attract refrigerator magnets and also has anti-glare and anti-fingerprint effects, making it suitable for use in the home appliance decorative glass panel industry.

[0041] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. A magnetic glass panel, comprising a glass substrate, characterized in that, The upper surface of the glass substrate is provided with a magnetic attraction layer, a pattern color layer and a structural texture layer from bottom to top; the magnetic attraction layer includes 1 to 3 magnetic coating layers; the lower surface of the glass substrate is provided with a protective back paint layer.

2. The magnetic glass panel according to claim 1, characterized in that, The thickness of the magnetic attraction functional layer is 0.001~1.5mm.

3. The magnetic glass panel according to claim 1, characterized in that, The magnetic coating is made by uniformly dispersing iron-containing metal powder with a rust-proof coating on its surface in a polyurethane transparent resin.

4. The magnetic glass panel according to claim 3, characterized in that, The particle size of the iron-containing metal material powder is 1~100μm, and the iron-containing metal material powder includes neodymium iron boron metal powder.

5. The magnetic glass panel according to claim 1, characterized in that, The thickness of the pattern color layer is 0.001~0.5mm.

6. The magnetic glass panel according to claim 1, characterized in that, The thickness of the structural texture layer is 0.001~0.5mm.

7. The magnetic glass panel according to claim 1, characterized in that, The thickness of the protective back coating layer is 0.001~0.1mm.

8. A refrigerator, characterized in that, Includes the magnetic glass panel as described in any one of claims 1-7.

9. The refrigerator according to claim 8, characterized in that, The pattern color layer and structural texture layer of the magnetic glass panel have a hollow structure corresponding to the position of the refrigerator's touch display function area.

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