Refrigerated storage apparatus, refrigerated storage apparatus panel, and method of manufacturing the same

Abstract

The application provides a refrigeration storage device, a refrigeration storage device panel and a manufacturing method thereof. The refrigeration storage device panel comprises a magnetic base plate, one side of the magnetic base plate along the thickness direction of the magnetic base plate is used for being connected with the outer surface of the refrigeration storage device, and the magnetic base plate is configured as a high polymer composite plate mixed with a plurality of magnetic particles. The refrigeration storage device panel is mixed with the magnetic particles in the high polymer composite material, and is processed and formed into the refrigeration storage device panel, so that the magnetic attraction of the refrigeration storage device panel is realized, the non-metal material panel of the refrigeration storage device panel can also have the function of magnetically attracting refrigerator stickers, and the user experience is improved.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and in particular to a refrigeration storage device, a refrigeration storage device panel, and a method for manufacturing the same. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] In the home appliance industry, refrigerator panels are primarily made of glass (including but not limited to float glass, microcrystalline glass, ceramic slabs, and sintered stone), metals (including but not limited to stainless steel, galvanized steel, and color-coated steel), and polymer materials (including but not limited to ABS, PMMA, PS, and SPC). In the mid-to-high-end market, glass has become the most widely used flat panel material in recent years, while SPC-coated panels have also begun to be used in the last year or two. Currently, there is an increasingly significant demand and pain point for both types of panels: compared to steel panels, which can magnetically attract refrigerator magnets of various shapes and styles, glass and SPC panels lack this feature, causing some inconvenience for consumers. Summary of the Invention

[0004] The purpose of this invention is to at least solve the technical problem that existing refrigerator panels made of non-metallic materials lack magnetic attraction functionality. This objective is achieved through the following technical solution:

[0005] A first aspect of the present invention provides a refrigeration storage device panel, the refrigeration storage device panel including a magnetic substrate, one side of the magnetic substrate along its own thickness direction being used to connect to the outer surface of the refrigeration storage device, the magnetic substrate being constructed as a polymer composite material sheet mixed with a plurality of magnetic particles.

[0006] The refrigeration storage device panel proposed in this invention achieves magnetic attraction by mixing magnetic particles into a polymer composite material and processing it into a refrigeration storage device panel. This enables the non-metallic material panel of the refrigeration storage device to also function as a magnetic refrigerator magnet, thus improving the user experience.

[0007] In addition, the refrigeration storage device panel according to the present invention may also have the following additional technical features:

[0008] In some embodiments of the present invention, the magnetic substrate is an SPC board mixed with the plurality of magnetic particles.

[0009] In some embodiments of the present invention, the refrigeration storage device panel further includes a carrier substrate, which is stacked on one side of the magnetic substrate along its own thickness direction, and the magnetic substrate is connected to the outer surface of the refrigeration storage device through the carrier substrate.

[0010] In some embodiments of the present invention, the refrigeration storage device panel further includes a polymer composite material layer, which is stacked on the side of the magnetic substrate opposite to the supporting substrate.

[0011] In some embodiments of the present invention, the refrigeration storage device panel further includes a wear-resistant layer, which is stacked on the side of the polymer composite material layer facing away from the magnetic substrate.

[0012] In some embodiments of the present invention, the carrier substrate is an SPC board;

[0013] And / or, the polymer composite material layer is a PVC layer;

[0014] And / or, the wear-resistant layer is a UV layer.

[0015] In some embodiments of the present invention, the refrigeration storage device panel further includes a back coating layer disposed on the side of the carrier substrate opposite to the magnetic substrate and used for attaching to the refrigeration storage device.

[0016] In some embodiments of the present invention, the thickness of the magnetic substrate ranges from 1 mm to 2 mm;

[0017] And / or, the thickness of the supporting substrate ranges from 1 mm to 3 mm;

[0018] And / or, the sum of the thickness of the magnetic substrate and the thickness of the supporting substrate is in the range of 2 mm to 5 mm.

[0019] In some embodiments of the present invention, the plurality of magnetic particles include at least one of iron particles and iron oxide particles.

[0020] A second aspect of the present invention provides a refrigeration storage device, comprising:

[0021] The box has an internal cavity with an opening;

[0022] The door is positioned at the opening in a manner that allows it to be opened and closed.

[0023] A refrigeration storage device panel, wherein the refrigeration storage device panel is the refrigeration storage device panel proposed in the first aspect of the present invention, wherein one side of the refrigeration storage device panel along its own thickness direction is connected to the side of the door body opposite to the receiving cavity.

[0024] The second aspect of the present invention proposes a refrigeration storage device with a magnetically attachable panel. By mixing magnetic particles into a polymer composite material and processing it into a refrigeration storage device panel, and installing it on the door of the refrigeration storage device, the magnetic attachability of the refrigeration storage device panel is achieved. This enables the non-metallic material panel of the refrigeration storage device to also function as a magnetic refrigerator magnet, thereby improving the user experience.

[0025] A third aspect of the present invention provides a method for manufacturing a refrigeration storage device panel, used to manufacture the refrigeration storage device panel proposed in the first aspect of the present invention, comprising the following steps:

[0026] Mixing multiple magnetic particles with a polymer composite material;

[0027] The mixture is melted and processed into the magnetic substrate.

[0028] The third aspect of this invention provides a method for manufacturing a refrigeration storage device panel. This method involves mixing magnetic particles into a polymer composite material and processing it into a refrigeration storage device panel. The panel is then installed on the door of the refrigeration storage device, thus achieving the magnetic properties of the refrigeration storage device panel. This allows even non-metallic panels of the refrigeration storage device to function as magnetic refrigerator magnets, improving the user experience.

[0029] In some embodiments of the present invention, the method for manufacturing the refrigeration storage device panel further includes the following steps:

[0030] 60 parts of polyvinyl chloride resin powder, 20-50 parts of calcium carbonate, 4-6 parts of calcium-zinc stabilizer, 0.5-1 part of lubricant, 0.6-1.0 part of polyethylene wax, 2-5 parts of chlorinated polyethylene, 2-4 parts of acrylate, 0.5-0.7 parts of colorant, and 110-140 parts of magnetic particles are mixed together, and the mixture is melted and processed into the magnetic substrate.

[0031] In some embodiments of the present invention, the method for manufacturing the refrigeration storage device panel further includes the following steps:

[0032] SPC raw materials are processed and shaped into a carrier substrate;

[0033] The carrier substrate and the magnetic substrate are thermally pressed together.

[0034] In some embodiments of the present invention, the method for manufacturing the refrigeration storage device panel further includes the following steps:

[0035] The polymer composite material layer is hot-pressed onto the side of the magnetic substrate opposite to the supporting substrate.

[0036] In some embodiments of the present invention, the method for manufacturing the refrigeration storage device panel further includes the following steps:

[0037] A UV layer is roll-coated onto the side of the polymer composite material layer facing away from the magnetic substrate.

[0038] In some embodiments of the present invention, the method for manufacturing the refrigeration storage device panel further includes the following steps:

[0039] The back coating layer is roller-coated onto the side of the carrier substrate opposite to the magnetic substrate. Attached Figure Description

[0040] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0041] Figure 1 A schematic diagram of the structure of a refrigeration storage device panel according to an embodiment of the present invention is shown.

[0042] Figure 2 A schematic flowchart illustrating a method for manufacturing a refrigeration storage device panel according to an embodiment of the present invention is shown.

[0043] Figure 3 A schematic diagram of the structure of a refrigeration storage device according to an embodiment of the present invention is shown.

[0044] The attached figures are labeled as follows:

[0045] 100. Refrigeration and storage equipment;

[0046] 10. Box body; 11. Receiving cavity; 12. Door;

[0047] 20. Refrigeration and storage equipment panel; 21. Magnetic substrate; 22. Supporting substrate; 23. Polymer composite material layer; 24. Wear-resistant layer; 25. Back coating layer. Detailed Implementation

[0048] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0049] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0050] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0051] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0052] like Figures 1 to 3 As shown, the first aspect of the present invention provides a refrigeration storage device panel 20, the refrigeration storage device panel 20 including a magnetic substrate 21, one side of the magnetic substrate 21 along its own thickness direction is used to connect to the outer surface of the refrigeration storage device 100, and the magnetic substrate 21 is constructed as a polymer composite material plate mixed with a plurality of magnetic particles.

[0053] As can be seen, the refrigeration storage device panel 20 proposed in this invention achieves magnetic attraction by mixing magnetic particles into a polymer composite material and processing it into a refrigeration storage device panel 20. This enables the non-metallic material panel of the refrigeration storage device panel 20 to also function as a magnetic refrigerator magnet, thus improving the user experience.

[0054] For example, the refrigeration storage device panel 20 can be applied to various refrigeration storage devices 100, such as refrigerators, freezers, or cold storage display cases. The refrigeration storage device 100 can be a refrigerator, freezer, or cold storage display case. The main body of the refrigeration storage device 100 is a cabinet 10, and the interior of the cabinet 10 defines a receiving cavity 11. The walls of the cabinet 10 are filled with foam material for insulation. The refrigeration storage device 100 is also equipped with a refrigeration system, which creates a low-temperature environment in the receiving cavity 11 to store food. The front or top side of the refrigeration storage device 100, that is, the side of the refrigeration storage device 100 facing the user, forms an opening communicating with the receiving cavity 11. The edge of the door 12 can be hinged to... The housing 10 is pivotally connected, allowing the door 12 to rotate at the opening to open or close the opening, or the door 12 is slidably connected to the housing 10, opening or closing the opening during sliding. The door 12 is generally plate-shaped. A refrigeration storage device panel 20 is installed on the side of the door 12 away from the receiving cavity 11 to improve aesthetics and form a closed space inside the door 12. The refrigeration storage device panel 20 can be connected to one side of the door 12 by adhesive bonding, or the refrigeration storage device panel 20 can be fixed to one side of the door 12 by snaps or fasteners. A certain space can also be defined between the refrigeration storage device panel 20 and the door 12 to fill with foam material for insulation. The refrigeration storage device panel 20 of the present invention uses a polymer composite material as a substrate, and magnetic particles are mixed into it during the substrate manufacturing stage, so that the refrigeration storage device panel 20 has a magnetic attraction function. Since the substrate of the refrigeration storage device panel 20 is a polymer composite material, it has good wear resistance, corrosion resistance and plasticity, and the cost is low. The polymer composite material can be stone-plastic, PVC, EVA and other polymer composite materials, and the magnetic particles can be iron powder or other particles containing iron and other magnetic materials.

[0055] like Figure 1 As shown, in some embodiments of the present invention, the magnetic substrate 21 is an SPC board mixed with a plurality of magnetic particles.

[0056] It is evident that by mixing magnetic particles into the SPC sheet, the refrigeration storage equipment panel 20 becomes magnetic, making it easy to magnetically attach decorative items such as refrigerator magnets. Furthermore, the SPC sheet has a low cost and good durability and water resistance.

[0057] For example, the magnetic particles may be particles containing materials such as iron, which are mixed with SPC (Stone Plastic Composite) material during the manufacturing stage of the refrigeration storage device panel 20, and then hot-melt extruded into a substrate. SPC material is mainly made of natural stone powder and polyvinyl chloride resin. It has the hardness of stone and the flexibility of plastic, and has high stability, high wear resistance and excellent waterproof performance.

[0058] like Figure 1 As shown, in some embodiments of the present invention, the refrigeration storage device panel 20 further includes a carrier substrate 22, which is stacked on one side of the magnetic substrate 21 along its own thickness direction. The magnetic substrate 21 is connected to the outer surface of the refrigeration storage device 100 through the carrier substrate 22. The carrier substrate 22 is an SPC board.

[0059] As can be seen, by setting the carrier substrate 22, the refrigeration storage device panel 20 has a certain thickness to ensure structural strength and texture, while magnetic particles are only set on the outer layer of the refrigeration storage device panel 20 to reduce production costs.

[0060] For example, the carrier substrate 22 can be made of the same SPC sheet as the magnetic substrate 21, and the SPC raw material and the SPC raw material mixed with magnetic particles are co-extruded by a twin-screw extruder, and then pressed into a refrigeration storage device panel 20. The carrier substrate 22 can also be made of other materials, such as substrates made of other polymer materials or non-metallic materials, and can also be laminated with the magnetic substrate 21 by means of hot pressing or bonding to form a refrigeration storage device panel 20 with a certain thickness and low cost.

[0061] like Figure 1 As shown, in some embodiments of the present invention, the refrigeration storage device panel 20 further includes a polymer composite material layer 23, which is stacked on the side of the magnetic substrate 21 away from the support substrate 22.

[0062] Specifically, the polymer composite layer 23 is a PVC layer.

[0063] As can be seen, by providing a polymer composite material layer 23 on the outside of the magnetic substrate 21 to protect the magnetic substrate 21, and by attaching a wear-resistant layer 24, a coloring layer and other functional layers to the side of the polymer composite material layer 23 away from the magnetic substrate 21, the user experience of the refrigeration storage device panel 20 is improved.

[0064] For example, the polymer composite layer 23 can be made of materials such as PVC (polyvinyl chloride) or EVA (ethylene-vinyl acetate copolymer). Molten PVC or ethylene-vinyl acetate copolymer is extruded through an extruder and then injection molded or calendered into a sheet-like layer structure. Before the polymer composite layer 23 has completely cooled and solidified, it can be pressed together with the magnetic substrate 21, so that the two are stacked.

[0065] like Figure 1 As shown, in some embodiments of the present invention, the refrigeration storage device panel 20 further includes a wear-resistant layer 24, which is stacked on the side of the polymer composite material layer 23 facing away from the magnetic substrate 21.

[0066] Specifically, the wear-resistant layer 24 is a UV layer.

[0067] It can be seen that by setting a wear-resistant layer 24 on the outside of the polymer composite material layer 23, the polymer composite material layer 23 becomes more durable. At the same time, the wear-resistant layer 24 can also improve the texture and feel, as well as provide anti-fouling and anti-fingerprint functions, thereby improving the user experience of the refrigeration storage device 100.

[0068] For example, the wear-resistant layer 24 can be a UV layer, i.e., an ultraviolet curing layer. An ink containing a photosensitizer is coated onto the side of the polymer composite material layer 23 facing away from the magnetic substrate 21, and then cured by irradiation with an ultraviolet curing lamp. This improves the wear resistance, stain resistance, and surface texture of the refrigeration storage device panel 20. The wear-resistant layer 24 can also be achieved using processes such as sandblasting and coating.

[0069] like Figure 1 As shown, in some embodiments of the present invention, the refrigeration storage device panel 20 further includes a back coating layer 25, which is disposed on the side of the carrier substrate 22 away from the magnetic substrate 21 and is used to adhere to the refrigeration storage device 100.

[0070] As can be seen, by providing a back coating layer 25 on the side of the carrier substrate 22 away from the magnetic substrate 21, the back side of the refrigeration storage device panel 20 can be glued with insulation material, such as the insulation foam material of a refrigerator, so that the refrigeration storage device panel 20 can be surrounded by the side wall and back panel of the door 12 to form a space to accommodate the foam material, and is fixed by bonding with the foam material.

[0071] For example, the back coating layer 25 can be achieved by coating the support substrate 22 with PU (polyurethane) on the side opposite to the magnetic substrate 21. Polyurethane has high strength and good toughness, and has excellent material properties when bonding foam materials. The back coating layer 25 can also be made of other polymer materials, and specific references can be made to the coating technology solutions for bonding foam materials in existing refrigerators.

[0072] like Figure 1As shown, in some embodiments of the present invention, the thickness of the magnetic substrate 21 ranges from 1 mm to 2 mm;

[0073] And / or, the thickness of the substrate 22 ranges from 1 mm to 3 mm;

[0074] And / or, the sum of the thickness of the magnetic substrate 21 and the thickness of the carrier substrate 22 ranges from 2 mm to 5 mm.

[0075] It can be seen that by setting the thickness of the magnetic substrate 21, the thickness of the support substrate 22, and the sum of their thicknesses within a suitable range, the refrigeration storage device panel 20 can save costs while ensuring strength and magnetic attraction effect. To facilitate processing, all magnetic particles are mixed in the magnetic substrate 21. The support substrate 22 serves as a support to increase the thickness and strength of the refrigeration storage device panel 20, thereby reducing the overall cost.

[0076] For example, the magnetic substrate 21 needs to be designed to be as thin as possible while ensuring magnetic flux and magnetic attraction effect to reduce production costs. The thickness of the magnetic substrate 21 can be set between 1mm and 2mm, so that the magnetic flux meets the requirements of magnetic decorations such as magnetic refrigerator magnets, and the thinness of the magnetic substrate 21 reduces production costs, thus balancing magnetic flux and production costs. The thickness of the supporting substrate 22 is designed to be between 1mm and 3mm, so that the supporting substrate 22 has a certain structural strength to ensure the texture and strength of the refrigeration storage device panel 20, and the thickness of the supporting substrate 22 is also moderate to reduce production costs. Furthermore, the sum of the thickness of the magnetic substrate 21 and the supporting substrate 22 can be set between 2mm and 5mm, so that the thickness of the refrigeration storage device panel 20 is moderate, ensuring the structural strength of the refrigeration storage device panel 20 while saving costs, thereby making the refrigeration storage device panel 20 less prone to deformation during installation or use.

[0077] like Figure 1 As shown, in some embodiments of the present invention, the magnetic particles include at least one of iron particles and iron oxide particles.

[0078] It is evident that the magnetic particles can be made of iron particles or iron oxide particles, which have strong magnetic properties, to ensure the magnetic attraction effect of the refrigeration storage device panel 20.

[0079] For example, the magnetic particles can be single iron particles or magnetite particles, or a mixture of iron particles or magnetite particles, depending on actual needs. The magnetic particles can be mixed into the raw materials of SPC or other polymer materials during the production stage of the refrigeration storage device panel 20, and the mixture can be melted and extruded to form the refrigeration storage device panel 20. The magnetic particles can also be other magnetic alloys, ferrites, or intermetallic compounds.

[0080] like Figure 3 As shown, a second aspect of the present invention provides a refrigeration storage device 100, which refrigeration storage device 100

[0081] Includes cabinet 10, door 12 and refrigeration

[0082] The storage device panel has an open cavity 11 inside the housing 10; the door 12 is provided at the opening in an openable manner; the refrigeration storage device panel 20 is the refrigeration storage device panel 20 proposed in the first aspect of the present invention, and one side of the refrigeration storage device panel 20 is connected to the side of the door 12 away from the cavity 11.

[0083] As can be seen, the refrigeration storage device 100 proposed in the second aspect of the present invention has a magnetically adsorbable panel. By mixing magnetic particles into a polymer composite material and processing it into a refrigeration storage device panel 20, and installing it on the door 12 of the refrigeration storage device 100, the magnetic adsorbability of the refrigeration storage device panel 20 is realized, so that the non-metallic material panel of the refrigeration storage device panel 20 can also function as a magnetic refrigerator magnet, thereby improving the user experience.

[0084] For example, the refrigeration storage device 100 can be a refrigerator, freezer, or cold storage display case, etc. The refrigeration storage device 100 includes a cabinet 10 defining a receiving cavity 11. The walls of the cabinet 10 are filled with foam material for insulation. The refrigeration storage device 100 also includes a refrigeration system that creates a low-temperature environment inside the receiving cavity 11 to store food. The front side of the refrigeration storage device 100, i.e., the side facing the user, forms an opening communicating with the receiving cavity 11. The edge of the door 12 can be pivotally connected to the cabinet 10 via a hinge, so that the door 12 can rotate at the opening to open or close the opening. The door 12 is generally plate-shaped, and the side of the door 12 facing away from the receiving cavity 11 A refrigeration storage device panel 20 is provided to improve aesthetics and form a closed space within the door 12. It is filled with foam material for insulation. The refrigeration storage device panel 20 uses a polymer composite material as the substrate. During the substrate manufacturing stage, magnetic particles are mixed into the polymer composite material, giving the refrigeration storage device panel 20 a magnetic attraction function. Since the substrate of the refrigeration storage device panel 20 is made of polymer composite material, it has good wear resistance, corrosion resistance and plasticity, and the cost is low. The polymer composite material can be SPC, ABS, PVC and other materials. The magnetic particles can be iron powder or other particles or powders containing iron and other magnetic substances.

[0085] like Figure 2 As shown, the third aspect of the present invention provides a method for manufacturing a refrigeration storage device panel 20, for manufacturing the refrigeration storage device panel 20 proposed in the first aspect of the present invention, comprising the following steps:

[0086] Mixing multiple magnetic particles with a polymer composite material;

[0087] The mixture is melted and processed into a magnetic substrate 21.

[0088] As can be seen, the manufacturing method of the refrigeration storage device panel 20 proposed in the third aspect of the present invention is used to manufacture a magnetic refrigeration storage device panel 20. By mixing magnetic particles into a polymer composite material and processing it into a refrigeration storage device panel 20, and installing it on the door 12 of the refrigeration storage device 100, the magnetic properties of the refrigeration storage device panel 20 are realized, so that the non-metallic material panel of the refrigeration storage device panel 20 can also function as a magnetic refrigerator magnet, thereby improving the user experience.

[0089] For example, the magnetic particles can be selected from strong magnetic particles such as iron particles or magnetite particles to ensure the magnetic attraction effect of the refrigeration storage device panel 20. Specifically, the magnetic particles can be single iron particles or magnetite particles, or a mixture of iron particles or magnetite particles, depending on the actual needs. The polymer composite material can be SPC (stone powder polyvinyl chloride composite material), ABS (acrylonitrile, butadiene, styrene terpolymer), PMMA (polymethyl methacrylate, acrylic), or PS (polystyrene). The raw material particles of the polymer composite material are mixed and stirred with the magnetic particles in an appropriate ratio, and then the mixture is melted and extruded and pressed into the refrigeration storage device panel 20, so that the magnetic particles are fixedly mixed in the polymer composite material. The polymer composite material serves as the base, and the magnetic particles provide the magnetic attraction function.

[0090] Specifically, the refrigeration storage device panel 20 can be applied to refrigerators, freezers, or cold storage display cases, serving as the panel of a refrigeration storage device 100. The refrigeration storage device 100 has an internal cavity 11 that creates a low-temperature environment, where food can be stored. The refrigeration storage device panel 20 can be installed on the side of the door 12 of the refrigeration storage device 100 facing away from the cavity 11, so that it faces the user. An opening is formed on the front side of the door 12, which can be formed by the four side walls of the door 12. The refrigeration storage device panel 20 can be embedded in the opening, forming a space between it and the side and bottom walls of the door 12 to accommodate insulating foam material, or within the refrigeration storage device 100 itself. The refrigeration storage device panel 20 has a magnetic attraction function. Because the substrate of the refrigeration storage device panel 20 is made of a high-molecular composite material, it has good wear resistance, corrosion resistance, and plasticity, while also being low in cost. The high-molecular composite material can be stone-plastic composite material, and the magnetic particles can be iron powder or other particles containing iron or other magnetic substances.

[0091] In some embodiments of the present invention, the following components in parts by weight are mixed: 60 parts of polyvinyl chloride resin powder, 20-50 parts of calcium carbonate, 4-6 parts of calcium-zinc stabilizer, 0.5-1 part of lubricant, 0.6-1.0 parts of polyethylene wax, 2-5 parts of chlorinated polyethylene, 2-4 parts of acrylate, 0.5-0.7 parts of colorant, and 110-140 parts of magnetic particles. The mixture is then melted and processed into a magnetic substrate 21.

[0092] It can be seen that by using polyvinyl chloride resin to make the main body of the magnetic substrate 21, the polyvinyl chloride resin has good strength, wear resistance and plasticity, and magnetic particles can be mixed in it during the production stage. Furthermore, by setting the weight ratio of each component in the magnetic substrate 21, the physicochemical properties of the magnetic substrate 21 are good.

[0093] For example, the base materials of the magnetic substrate 21 are polyvinyl chloride resin powder, calcium carbonate, and magnetic particles. The polyvinyl chloride resin powder provides the basic physical and processing properties of the magnetic substrate 21, giving it good wear resistance, water resistance, and plasticity. The weight percentage of the polyvinyl chloride resin powder is generally between 20% and 30%. Calcium carbonate, as a filler, can improve the hardness, rigidity, and stability of the magnetic substrate 21, and also reduce production costs. Its weight percentage is generally around 15%. To improve the physical properties of the magnetic substrate 21, especially its bending performance and impact resistance, plasticizers, such as dioctyl phthalate or dibutyl phthalate, can be added. To reduce the friction between the raw materials and the processing equipment, lubricants such as paraffin wax or polyethylene wax can be added. This reduces the friction between the raw materials and the processing equipment, thereby preventing material from adhering to the equipment and ensuring a smooth extrusion process. To improve the stability of the magnetic substrate 21 under the influence of light and temperature, stabilizers, such as calcium-zinc stabilizers, can be added to the raw materials. This prevents the polyvinyl chloride resin from decomposing under the influence of light and high temperatures during processing and subsequent use, thereby extending the service life of the magnetic substrate 21. Chlorinated polyethylene can also be added to the raw materials, giving the polyvinyl chloride resin excellent toughness, ozone resistance, corrosion resistance, and aging resistance, as well as good oil resistance, flame retardancy, and coloring properties. Furthermore, the addition of acrylates gives the magnetic substrate 21 good cold and heat resistance, further extending its service life. Depending on coloring requirements, pigments such as color masterbatches can be added to give the magnetic substrate 21 color, improving its aesthetics. The above components can be mixed in weight proportions to form the raw material for the magnetic substrate 21, which is then formed into the magnetic substrate 21 through an extrusion pressing process.

[0094] In some embodiments of the present invention, the method of manufacturing the refrigeration storage device panel 20 further includes the following steps:

[0095] The SPC raw material is processed and shaped into a carrier substrate 22;

[0096] The carrier substrate 22 and the magnetic substrate 21 are thermally pressed together.

[0097] As can be seen, by setting the carrier substrate 22 to make the refrigeration storage device panel 20 have a certain thickness, magnetic particles are only set on one side of the refrigeration storage device panel 20 to reduce costs.

[0098] For example, the carrier substrate 22 can be made of the same stone-plastic sheet as the magnetic substrate 21, and is co-extruded and pressed with the stone-plastic raw material mixed with magnetic particles using a twin-screw extruder to form the refrigeration storage device panel 20. The carrier substrate 22 can also be made of other non-metallic materials, such as a substrate made of polymer materials, which can also be laminated with the magnetic substrate 21 by means of hot pressing or bonding to form a refrigeration storage device panel 20 with a certain thickness and lower cost.

[0099] Specifically, the following raw materials by weight are mixed: 60 parts polyvinyl chloride resin powder, 140-180 parts calcium carbonate, 4-6 parts calcium-zinc stabilizer, 0.5-1 part lubricant, 0.6-1.0 parts polyethylene wax, 2-5 parts chlorinated polyethylene (CPE), 2-4 parts acrylate, and 0.5-0.7 parts colorant. The mixture is then melted and processed into a carrier substrate 22. The base materials of the carrier substrate 22 are polyvinyl chloride resin powder and calcium carbonate. The polyvinyl chloride resin powder provides the basic physical and processing properties of the magnetic substrate 21, giving it good wear resistance, water resistance, and plasticity. The weight percentage of polyvinyl chloride resin powder is generally between 20% and 30%. Calcium carbonate, as a filler material, can improve the hardness, rigidity, and stability of the magnetic substrate 21, and also reduce production costs. Its weight percentage is generally around 15%. To improve the physical properties of the magnetic substrate 21, especially its bending and impact resistance, plasticizers, such as dioctyl phthalate or dibutyl phthalate, can be added. To reduce friction between the raw materials and processing equipment, lubricants such as paraffin wax or polyethylene wax can be added, thus reducing friction and preventing material adhesion to the equipment, ensuring a smooth extrusion process. To improve the stability of the magnetic substrate 21 under the influence of light and temperature, stabilizers, such as calcium-zinc stabilizers, can be added to the raw materials, preventing the polyvinyl chloride resin from decomposing under the influence of light and high temperatures during processing and subsequent use, thereby extending the service life of the magnetic substrate 21. Chlorinated polyethylene can also be added to the raw materials, giving the polyvinyl chloride resin excellent toughness, ozone resistance, corrosion resistance, and aging resistance, as well as good oil resistance, flame retardancy, and coloring properties. Adding acrylates further enhances the magnetic substrate 21's cold and heat resistance, improving its service life. Depending on coloring requirements, pigments such as color masterbatches can be added to give the magnetic substrate 21 color and improve its aesthetics. The above components can be mixed in weight ratio to form the raw material of magnetic substrate 21, and then formed into magnetic substrate 21 by extrusion pressing process.

[0100] In some embodiments of the present invention, the method of manufacturing the refrigeration storage device panel 20 further includes the following steps:

[0101] The PVC layer is heat-pressed onto the side of the magnetic substrate 21 that is away from the carrier substrate 22.

[0102] As can be seen, by providing a polymer composite material layer 23 on the outside of the magnetic substrate 21 to protect the magnetic substrate 21, and by attaching a wear-resistant layer 24, a coloring layer and other functional layers to the side of the polymer composite material layer 23 away from the magnetic substrate 21, the user experience of the refrigeration storage device panel 20 is improved.

[0103] For example, the polymer composite layer 23 can be made of materials such as PVC (polyvinyl chloride) or EVA (ethylene-vinyl acetate copolymer). Molten PVC or ethylene-vinyl acetate copolymer is extruded through a screw extruder and then injection molded or calendered into a sheet. Before the polymer composite layer 23 is completely cooled and formed, it can be pressed with the magnetic substrate 21 using a calender. In the calender, the pressure of the rollers acts on the polymer composite layer 23, causing it to press against the magnetic substrate 21. After cooling, the two form a stacked structural layer.

[0104] In some embodiments of the present invention, the method of manufacturing the refrigeration storage device panel 20 further includes the following steps:

[0105] A UV layer is roll-coated on the side of the PVC layer away from the magnetic substrate 21.

[0106] Alternatively, the refrigeration storage device panel 20 may also include a wear-resistant layer 24, which is stacked on the side of the polymer composite material layer 23 facing away from the magnetic substrate 21, and the wear-resistant layer 24 is a UV layer.

[0107] It can be seen that by setting a wear-resistant layer 24 on the outside of the polymer composite material layer 23, the polymer composite material layer 23 becomes more durable. At the same time, the wear-resistant layer 24 can also improve the texture and feel, as well as provide anti-fouling and anti-fingerprint functions, thereby improving the user experience of the refrigeration storage device 100.

[0108] For example, the wear-resistant layer 24 can be achieved using a UV process. This involves coating the side of the polymer composite layer 23 facing away from the magnetic substrate 21 with an ink containing a photosensitizer, and then curing it with a UV curing lamp to form the wear-resistant layer 24, thereby improving the wear resistance of the surface of the refrigeration storage device panel 20. Furthermore, the wear-resistant layer 24 achieved using the UV process also possesses gloss and a certain surface texture, enhancing the aesthetics of the refrigeration storage device panel 20 and thus improving the user experience.

[0109] In some embodiments of the present invention, the method of manufacturing the refrigeration storage device panel 20 further includes the following steps:

[0110] A back coating layer 25 is roll-coated on the side of the carrier substrate 22 opposite to the magnetic substrate 21.

[0111] As can be seen, by providing a back coating layer 25 on the side of the carrier substrate 22 away from the magnetic substrate 21, the back side of the refrigeration storage device panel 20 can be glued with insulation material, such as the insulation foam material of a refrigerator, so that the refrigeration storage device panel 20 can be surrounded by the side wall and back panel of the door 12 to form a space to accommodate the foam material, and is fixed by bonding with the foam material.

[0112] For example, the back coating layer 25 can be made of PU (polyurethane) and applied to the side of the carrier substrate 22 away from the magnetic substrate 21. Polyurethane has high strength and good toughness, and has excellent material properties when bonding foam materials. Other polymer materials can also be used for the back coating layer 25, and specific technical solutions for bonding foam materials in existing refrigerators can be referred to.

[0113] like Figure 2 As shown, the complete steps of manufacturing the refrigeration storage device panel 20 are as follows:

[0114] The following components by weight are mixed to form the raw material for magnetic substrate 21: 60 parts polyvinyl chloride resin powder, 20-50 parts calcium carbonate, 4-6 parts calcium zinc stabilizer, 0.5-1 part lubricant, 0.6-1.0 parts polyethylene wax, 2-5 parts chlorinated polyethylene, 2-4 parts acrylate, 0.5-0.7 parts colorant, and 110-140 parts magnetic particles.

[0115] The following components by weight are then mixed to form the raw material for the substrate 22: 60 parts polyvinyl chloride resin powder, 140-180 parts calcium carbonate, 4-6 parts calcium zinc stabilizer, 0.5-1 part lubricant, 0.6-1.0 parts PE wax, 2-5 parts chlorinated polyethylene (CPE), 2-4 parts acrylate, and 0.5-0.7 parts colorant.

[0116] The magnetic substrate 21 raw material and the carrier substrate 22 raw material are fed into a twin-screw extruder, and the twin-screw extruder hot-extrudes and then combines the two raw materials.

[0117] Then, a PVC layer is hot-pressed onto the side of the magnetic substrate 21 that is away from the carrier substrate 22;

[0118] An ink containing a photosensitive agent is coated on the side of the PVC layer facing away from the magnetic substrate 21, and a UV layer is formed by curing with a curing lamp.

[0119] Finally, a back coating layer 25 is coated on the side of the carrier substrate 22 that is away from the magnetic substrate 21. The back coating layer 25 can be made of polyurethane.

[0120] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A panel for a refrigeration storage device, characterized in that, It includes a magnetic substrate, one side of which is used to connect to the outer surface of the refrigeration storage device along its own thickness direction. The magnetic substrate is a polymer composite material plate mixed with multiple magnetic particles.

2. The refrigeration storage device panel according to claim 1, characterized in that, The magnetic substrate is an SPC board mixed with the plurality of magnetic particles.

3. The refrigeration storage device panel according to claim 1, characterized in that, The refrigeration storage device panel also includes a carrier substrate, which is stacked on one side of the magnetic substrate along its own thickness direction. The magnetic substrate is connected to the outer surface of the refrigeration storage device through the carrier substrate.

4. The refrigeration storage device panel according to claim 3, characterized in that, The refrigeration and storage device panel also includes a polymer composite material layer, which is stacked on the side of the magnetic substrate opposite to the supporting substrate.

5. The refrigeration storage device panel according to claim 4, characterized in that, The refrigeration storage device panel also includes a wear-resistant layer, which is stacked on the side of the polymer composite material layer facing away from the magnetic substrate.

6. The refrigeration storage device panel according to claim 5, characterized in that, The substrate is an SPC material; And / or, the polymer composite material layer is a PVC layer; And / or, the wear-resistant layer is a UV layer.

7. The refrigeration storage device panel according to claim 3, characterized in that, The refrigeration storage device panel also includes a back coating layer, which is disposed on the side of the carrier substrate away from the magnetic substrate, and the carrier substrate is attached to the refrigeration storage device through the back coating layer.

8. The refrigeration storage device panel according to claim 3, characterized in that, The thickness of the magnetic substrate ranges from 1 mm to 2 mm; And / or, the thickness of the supporting substrate ranges from 1 mm to 3 mm; And / or, the sum of the thickness of the magnetic substrate and the thickness of the supporting substrate is in the range of 2 mm to 5 mm.

9. The refrigeration storage device panel according to any one of claims 1 to 8, characterized in that, The plurality of magnetic particles include at least one of iron particles and iron oxide particles.

10. A refrigeration storage device, characterized in that, include: The box has an internal cavity with an opening; The door is provided at the opening in a manner that allows it to be opened and closed; A refrigeration storage device panel, wherein the refrigeration storage device panel is the refrigeration storage device panel according to any one of claims 1 to 8, and one side of the refrigeration storage device panel along its own thickness direction is connected to the side of the door body opposite to the receiving cavity.

11. A method for manufacturing a refrigeration storage device panel, used to manufacture the refrigeration storage device panel according to any one of claims 1 to 9, characterized in that, Includes the following steps: Mixing multiple magnetic particles with a polymer composite material; The mixture is melted and processed into the magnetic substrate.

12. The method for manufacturing a refrigeration storage device panel according to claim 11, characterized in that, The method for manufacturing the panel of the refrigeration storage device further includes the following steps: 60 parts of polyvinyl chloride resin powder, 20-50 parts of calcium carbonate, 4-6 parts of calcium-zinc stabilizer, 0.5-1 part of lubricant, 0.6-1.0 part of polyethylene wax, 2-5 parts of chlorinated polyethylene, 2-4 parts of acrylate, 0.5-0.7 parts of colorant, and 110-140 parts of magnetic particles are mixed together, and the mixture is melted and processed into the magnetic substrate.

13. The method for manufacturing a refrigeration storage device panel according to claim 12, characterized in that, The method for manufacturing the panel of the refrigeration storage device further includes the following steps: SPC raw materials are processed and shaped into a carrier substrate; The carrier substrate and the magnetic substrate are thermally pressed together.

14. The method for manufacturing a refrigeration storage device panel according to claim 13, characterized in that, The method for manufacturing the panel of the refrigeration storage device further includes the following steps: The polymer composite material layer is hot-pressed onto the side of the magnetic substrate opposite to the supporting substrate.

15. The method for manufacturing a refrigeration storage device panel according to claim 14, characterized in that, The method for manufacturing the panel of the refrigeration storage device further includes the following steps: A UV layer is roll-coated onto the side of the polymer composite material layer facing away from the magnetic substrate.

16. The method for manufacturing a refrigeration storage device panel according to claim 13, characterized in that, The method for manufacturing the panel of the refrigeration storage device further includes the following steps: The back coating layer is roller-coated onto the side of the carrier substrate opposite to the magnetic substrate.

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