Refrigerator side panel structure and refrigerator

Abstract

A refrigerator side panel structure and a refrigerator are disclosed, relating to the field of refrigerator technology. The refrigerator side panel structure includes a side panel body, a condensing structure, and a heat-conducting graphite assembly. The condensing structure is disposed on a first side of the side panel body, and the heat-conducting graphite assembly is disposed on a second side of the side panel body. The first and second sides are opposite sides, and the position of the heat-conducting graphite assembly corresponds to the position of the condensing structure, serving to dissipate heat from the condensing structure. The refrigerator side panel structure and refrigerator provided in this application can improve heat dissipation efficiency, thereby reducing the refrigerator's energy consumption while reducing the compressor's thermal load and mechanical wear.

Description

Technical Field

[0001] This application relates to the field of refrigerator technology, and in particular to a refrigerator side panel structure and a refrigerator. Background Technology

[0002] Currently, most household refrigerators use a built-in condenser design, which is usually attached to the metal side panels on the sides or back of the refrigerator. The metal shell is used as an auxiliary heat dissipation surface to transfer the heat released when the high-temperature and high-pressure refrigerant discharged from the compressor is condensed to the surrounding air, thus completing the heat dissipation process.

[0003] Heat dissipation efficiency is highly dependent on the temperature difference between the side panel and the ambient air. When the ambient temperature rises (such as in summer or in hot and humid southern regions), the temperature difference decreases, leading to a decline in overall heat dissipation capacity. The compressor then needs to run longer to maintain the low temperature inside the refrigerator, resulting in increased energy consumption. To maintain the set temperature inside the refrigerator, the control system extends the compressor's running time to compensate for the decreased cooling efficiency caused by insufficient condensation. This not only increases energy consumption but also exacerbates the compressor's thermal load and mechanical wear. Utility Model Content

[0004] The purpose of this application is to provide a refrigerator side panel structure and a refrigerator that can improve heat dissipation efficiency, thereby reducing the refrigerator's power consumption while reducing the compressor's heat load and mechanical wear.

[0005] To address the aforementioned technical problems, this application provides the following technical solutions:

[0006] The first aspect of this application provides a refrigerator side panel structure, including:

[0007] Side panel main body;

[0008] A condensing structure is provided on the first side of the main body of the side panel.

[0009] Thermally conductive graphite assembly, which is disposed on the second side of the side plate body;

[0010] The first side and the second side are opposite sides, and the position of the thermally conductive graphite component corresponds to the position of the condensation structure, which is used to dissipate heat from the condensation structure.

[0011] In some modified embodiments of the first aspect of this application, the thermally conductive graphite assembly includes:

[0012] Thermally conductive graphite sheet, which is connected to the side plate body;

[0013] A protective layer covers the side of the thermally conductive graphite sheet away from the main body of the side plate, and is used to protect the thermally conductive graphite sheet.

[0014] In some modified embodiments of the first aspect of this application, the thermally conductive graphite assembly further includes a connecting layer disposed between the thermally conductive graphite sheet and the side plate body for bonding the thermally conductive graphite sheet and the side plate body.

[0015] In some modified embodiments of the first aspect of this application, the thickness of the thermally conductive graphite sheet is 0.05-0.4 mm.

[0016] In some modified embodiments of the first aspect of this application, the thickness of the thermally conductive graphite sheet is 0.3 mm.

[0017] In some modified embodiments of the first aspect of this application, the thickness of the protective layer is 0.02-0.1 mm; the thickness of the connecting layer is 0.01-0.03 mm.

[0018] In some modified embodiments of the first aspect of this application, the thermally conductive graphite assembly is integrally attached to the surface of the side plate body in a surface contact manner, and the thermally conductive graphite assembly can conform to the geometry of the side plate body and continuously and smoothly cover the planar and curved sections of the side plate body.

[0019] A second aspect of this application provides a refrigerator, comprising:

[0020] Refrigerator body;

[0021] The refrigerator side panel structure described above is located on at least one side of the refrigerator body.

[0022] In some modified embodiments of the second aspect of this application, the refrigerator body includes:

[0023] The compressor, connected at one end to the condenser structure, is used to compress the refrigerant and increase its temperature and pressure; the condenser structure is used to dissipate heat from the refrigerant.

[0024] The capillary tube is connected to one end of the condenser structure and is used to reduce the pressure and temperature of the refrigerant, forming low-temperature, low-pressure wet vapor.

[0025] Evaporator: The evaporator is used to evaporate the refrigerant in order to absorb heat from inside the refrigerator and complete the cooling process.

[0026] The refrigerator compartment corresponds to the location of the evaporator.

[0027] In some modified embodiments of the second aspect of this application, the refrigerator side panel structure is provided in two parts, and the two refrigerator side panel structures are respectively provided on both sides of the refrigerator body.

[0028] Compared to existing technologies, the refrigerator side panel structure provided in the first aspect of this application allows for rapid surface diffusion of heat from the condensing structure by installing heat-conducting graphite components at the corresponding positions of the condensing structure on the side panel body. This improves the heat dissipation efficiency of the condensing structure, resulting in more complete condensation, thereby reducing the compressor's operating time and energy consumption, and reducing the compressor's thermal load and mechanical wear. Attached Figure Description

[0029] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein:

[0030] Figure 1 A schematic diagram of a partial structure of a refrigerator is shown.

[0031] Figure 2 A schematic diagram of a refrigerator side panel structure is shown.

[0032] Figure 3 A schematic diagram of the internal structure of a refrigerator is shown.

[0033] Figure 4 A schematic diagram of a three-dimensional structure of a refrigerator is shown.

[0034] Explanation of icon numbers:

[0035] 1. Refrigerator body; 11. Compressor; 12. Capillary tube; 13. Evaporator; 14. Refrigerator compartment; 2. Refrigerator side panel structure; 21. Side panel body; 22. Condensation structure; 23. Thermally conductive graphite assembly; 231. Connecting layer; 232. Thermally conductive graphite sheet; 233. Protective layer. Detailed Implementation

[0036] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0037] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains.

[0038] Currently, most household refrigerators use a concealed condenser design, typically attaching the condenser to the metal side panels on the sides or back of the refrigerator. The metal casing serves as an auxiliary heat dissipation surface, transferring the heat released when the high-temperature, high-pressure refrigerant discharged from the compressor 11 condenses into the surrounding air, thus completing the heat dissipation process.

[0039] The heat dissipation efficiency is highly dependent on the temperature difference between the side panel and the ambient air. When the ambient temperature rises (such as in summer or in hot and humid southern regions), the temperature difference decreases, leading to a decline in overall heat dissipation capacity. The compressor 11 then needs to extend its operating time to maintain the low temperature inside the refrigerator, resulting in increased energy consumption. To maintain the set temperature inside the refrigerator, the control system will extend the operating time of the compressor 11 to compensate for the decrease in cooling efficiency caused by insufficient condensation. This not only increases energy consumption but also exacerbates the thermal load and mechanical wear of the compressor 11.

[0040] To solve the above-mentioned technical problems, this application provides a refrigerator side panel structure 2 and a refrigerator, which can improve heat dissipation efficiency, thereby reducing the refrigerator's power consumption while reducing the heat load and mechanical wear of the compressor 11.

[0041] Example 1

[0042] like Figure 1 and Figure 2 As shown, a refrigerator side panel structure 2 includes a side panel body 21, a condensing structure 22, and a heat-conducting graphite assembly 23. The condensing structure 22 is disposed on the first side of the side panel body 21, and the heat-conducting graphite assembly 23 is disposed on the second side of the side panel body 21. The first side and the second side are opposite sides, and the position of the heat-conducting graphite assembly 23 corresponds to the position of the condensing structure 22, and is used to dissipate heat from the condensing structure 22.

[0043] The side panel body 21 refers to the core supporting component constituting the side structure of the refrigerator. It can be a metal plate (such as steel plate). Its function is to serve as the structural skeleton of the entire side panel structure, providing mechanical strength and rigidity; to support and fix the condensing structure 22 (such as condenser pipes, condenser plates, or integrated condenser modules) on its first side (usually the outer side or back); and to form the cabinet frame together with the top panel, bottom panel, back panel, and inner liner of the refrigerator; and to serve as the outer boundary of the foamed insulation layer, participating in the overall sealing and heat insulation. The side panel body 21 can be made of cold-rolled steel plate, which has high strength, low cost, and is easy to process. The surface needs to be treated with anti-corrosion measures (such as electrophoresis), suitable for...

[0044] Mainstream household refrigerators; the side panel body 21 can also be made of galvanized steel plate, which has good corrosion resistance and is suitable for humid environments, and is suitable for high humidity areas or commercial refrigerators; the side panel body 21 can also be made of stainless steel plate, which is corrosion resistant, beautiful, and can be used in the open, and is suitable for high-end built-in or side-by-side refrigerators; the side panel body 21 can also be made of aluminum alloy plate, which is lightweight and corrosion resistant, but has lower rigidity, and is suitable for special lightweight design models. The side panel body 21 can be a flat structure, made of flat steel plate, with no reinforcement, resulting in low cost and suitability for small refrigerators. Alternatively, the side panel body 21 can be a bent and reinforced structure, with edges or the center bent to form a U-shaped / C-shaped cross-section, improving bending stiffness and preventing deformation. Reinforcing ribs (such as bulges or grooves) can be pressed onto the surface of the side panel body 21 to enhance local load-bearing capacity, suitable for installing condenser pipes. The side panel body 21 can also be a frame-type welded structure, welded from columns, outer panels, and beams to achieve high strength, suitable for large-capacity refrigerators. The side panel body 21 can be a standard structure, serving only a supporting function, with the condenser pipes fixed by clips or adhesive. The side panel body 21 can also be an integrated installation type, with pre-set condenser pipe mounting slots, welding points, or embedded heat-conducting plates. Furthermore, the side panel body 21 can be a multi-functional type, serving as both a condenser heat dissipation fin and a heat-conducting substrate (such as an integrated metal backplate and condenser pipe). In short, the side panel body 21 is the basic platform for installing the condenser structure 22 and a key component of the refrigerator's structural strength.

[0045] The condensing structure 22 refers to a component or system integrated or installed on the outside (first side) of the side panel body 21 for dissipating heat from the refrigerant. The condensing structure 22 condenses the high-temperature, high-pressure gaseous refrigerant into a liquid state, dissipating heat to the environment through conduction, convection, and radiation; it works in conjunction with the side panel body 21 to improve heat exchange efficiency; it simplifies the external structure of the refrigerator, saves space, and enhances its appearance. The condensing structure 22 can be a serpentine coil structure, with copper tubes bent into a serpentine shape and directly attached or fixed to the surface of the side panel body 21. This structure is simple, low-cost, but has a limited heat dissipation area. Alternatively, the condensing structure 22 can have metal fins (aluminum or steel) added to the outside of the copper tubes to increase the heat exchange area and achieve higher heat dissipation efficiency. However, this method is larger and is often used in high-power models. The condensing structure 22 can also be a printed structure (sheet metal integration), where flow channels are pressed or flat pipes are embedded on the side panel body 21 to form an integrated heat dissipation surface with a smooth appearance and high integration. The condensing structure 22 can also be a spray-painted or adhesive condensing structure 22, where heat-conducting materials or micro-condensing tubes are attached to the side panel through spraying or adhesive bonding, making it suitable for ultra-thin refrigerators. The condensing structure 22 can be externally mounted, with the condensing tubes fixed to the outer surface of the side panel by clips, spot welding, or adhesive bonding, facilitating installation and maintenance. The condensing structure 22 can also be embedded, with the condensing tubes embedded in a pre-set groove in the side panel body 21, partially or completely buried in a smooth surface, offering high safety and protection against impacts. The condensing structure 22 can also be a composite layer structure, with the condensing tubes sandwiched between the side panel body 21 and another metal plate, forming a "sandwich structure" for uniform heat dissipation and a compact structure, requiring welding for sealing. The condensing structure 22 can also be a one-piece molded structure, with the side panel body 21 itself having internal flow channels (such as hydroforming), allowing refrigerant to flow directly through the side panel, resulting in high integration, excellent heat dissipation performance, but at a higher cost.

[0046] The condensing structure 22 and the side plate body 21 can be a combination of copper tubes and steel side plates, with the copper tubes serving as condenser tubes, welded or pressed onto the steel plate, offering good thermal conductivity, corrosion resistance, and moderate cost. Alternatively, the condensing structure 22 and the side plate body 21 can be a combination of aluminum tubes and aluminum side plates, resulting in an all-aluminum structure that is lightweight and suitable for specific models with low costs. Furthermore, the condensing structure 22 and the side plate body 21 can be made of stainless steel composite plates, with the condenser flow channels prefabricated within the stainless steel plate, offering corrosion resistance, long service life, and suitability for high-end products. Thermal grease, graphene coatings, or thermal pads can also be added between the condenser tubes and the side plate to improve heat transfer efficiency. The side plate surface can be coated with a high-infrared radiation coating (such as black electrophoretic paint) to enhance heat radiation capabilities. The condensing structure 22 can be designed in conjunction with a natural convection airflow system, utilizing the principle of rising hot air to improve heat dissipation.

[0047] The thermally conductive graphite component 23 refers to a functional thermal management module made by using thermally conductive graphite sheets 232 (or graphene thermally conductive film, high thermal conductivity graphite film) as the main thermally conductive medium, combined with auxiliary materials or structures such as adhesive bonding layer 231, protective layer 233, and structural support, and processed through die-cutting, lamination, and bonding processes. The thermally conductive graphite component 23 can rapidly conduct heat from localized high-temperature areas along the planar direction (in-plane thermal conduction), achieving temperature uniformity, avoiding localized overheating, improving heat dissipation efficiency, and realizing efficient and lightweight thermal management within a limited space. The thermally conductive graphite component 23 can be made from natural flake graphite through expansion and calendering, which has a low cost and good thermal conductivity. The thermally conductive graphite component 23 can also include artificially synthesized graphite (PI-based), which is made by high-temperature carbonization and graphitization of polyimide (PI) film, resulting in better thermal conductivity (up to 1500W / mK) and uniform thickness. The thermally conductive graphite component 23 can also be a composite graphite component, in which the graphite layer is combined with other materials (such as aluminum foil, copper mesh, carbon fiber) to take into account both thermal conductivity and electromagnetic shielding functions. The thermally conductive graphite component 23 can be a single-layer thermally conductive graphite sheet 232, consisting of only one layer of graphite film, with adhesive or release film on both sides, representing the most basic form for simple bonding; the thermally conductive graphite component 23 can also be a multi-layer stacked component, consisting of multiple layers of graphite film stacked together, improving the overall thermal conductivity suitable for high heat flux density scenarios; the thermally conductive graphite component 23 can also be an adhesive composite component, with thermally conductive adhesive (such as acrylic or silicone) coated on one or both sides of the graphite film for easy bonding and fixing; the thermally conductive graphite component 23 can also be a pre-cut component with adhesive backing, die-cut to a specific shape, with a protective film, ready to use after peeling. In the refrigerator side panel integrated condenser structure 22, it can serve as a key thermally conductive enhancement element, significantly improving the heat dissipation performance of the condenser system, and helping the refrigerator achieve miniaturization, high efficiency, and energy-saving design.

[0048] Compared to existing technologies, the refrigerator side panel structure 2 provided in the first aspect of this application, by installing a heat-conducting graphite assembly 23 at the corresponding position of the condensation structure 22 on the side panel body 21, allows the heat of the condensation structure 22 to diffuse rapidly, thereby improving the heat dissipation efficiency of the condensation structure 22, making condensation more complete, and thus reducing the operating time and energy consumption of the compressor 11, as well as reducing the thermal load and mechanical wear of the compressor 11. The heat-conducting graphite sheet 232 is a novel heat-conducting and heat-dissipating material. Its flexible sheet structure can adapt well to any surface. Introducing the heat-conducting graphite sheet 232 into the original refrigerator side panel structure 2 improves the heat dissipation efficiency of the refrigerator side panel and reduces energy consumption without changing the original structure of the refrigerator side panel, and without opening or modifying molds. The improved heat dissipation efficiency can also reduce the operating time of the compressor 11, which helps to ensure the service life of the compressor 11.

[0049] like Figure 1 and Figure 2As shown, in some modified embodiments of this application, the thermally conductive graphite assembly 23 includes a thermally conductive graphite sheet 232 and a protective layer 233. The thermally conductive graphite sheet 232 is connected to the side plate body 21. The protective layer 233 covers the side of the thermally conductive graphite sheet 232 away from the side plate body 21 and is used to protect the thermally conductive graphite sheet 232.

[0050] Thermally conductive graphite sheet 232 is a flexible sheet material made from natural flake graphite or synthetic polyimide (PI) film through high-temperature carbonization and graphitization. It possesses extremely high in-plane thermal conductivity (rapid heat transfer along the planar direction) and is mainly used for heat dissipation and temperature management in electronic devices and home appliances. Its working principle is to rapidly conduct heat from localized high-temperature points along the planar direction, forming "surface heat dissipation" rather than "point heat dissipation," thereby reducing hotspot temperatures and improving system thermal stability. Thermally conductive graphite sheet 232 can be made from natural graphite, synthetic graphite, or other synthetic materials.

[0051] The protective layer 233 refers to one or more functional films or coatings attached to the surface of the thermally conductive graphite sheet 232. These layers prevent the graphite sheet from shedding powder, cracking, or oxidizing during use, improve mechanical strength and wear resistance, and enhance electrical insulation or flame retardancy. The protective layer 233 can be a PET (polyethylene terephthalate) film, which is easy to remove during transportation and assembly while also providing protection. The release film can also be an insulating coating such as epoxy resin or ceramic coating, enhancing electrical insulation and preventing short circuits. The release film can also be a wear-resistant or scratch-resistant layer, such as a silicon nitride, alumina coating, or transparent polymer film, preventing wear on the graphite sheet surface. The protective layer 233 can be a high-emissivity coating, a black ceramic or carbon-based coating, enhancing infrared radiation and heat dissipation. The protective layer 233 can also be a polymer film with added flame retardants to meet fire safety standards.

[0052] like Figure 1 and Figure 2 As shown, in some modified embodiments of this application, the thermally conductive graphite assembly 23 further includes a connecting layer 231, which is disposed between the thermally conductive graphite sheet 232 and the side plate body 21 for bonding the thermally conductive graphite sheet 232 and the side plate body 21.

[0053] The connecting layer 231 refers to the adhesive or bonding interface layer located between the thermally conductive graphite sheet 232 and the side plate body 21. Its main function is to firmly bond and fix the thermally conductive graphite sheet 232 to the target surface, fill microscopic gaps, reduce contact thermal resistance, improve heat conduction efficiency, provide a certain buffer and stress absorption capacity, and prevent delamination due to vibration or thermal expansion and contraction. In some embodiments, the connecting layer 231 may also have electrical insulation, flame retardant, or high-temperature resistance properties. The connecting layer 231 can be a pressure-sensitive adhesive layer (PSA), such as acrylic adhesive and rubber-based adhesive, which can be pressed and bonded at room temperature without curing, making assembly convenient. The connecting layer 231 can also be a silicone adhesive layer, an organosilicon polymer, which is resistant to high temperatures (-50℃ to above 200℃), has good flexibility, is resistant to aging, and is suitable for high-temperature environments (such as near the compressor 11). The connecting layer 231 can also be a thermally conductive adhesive layer, consisting of epoxy or silicone filled with thermally conductive fillers, combining adhesive strength and thermal conductivity with lower thermal resistance, suitable for high-performance heat dissipation applications. The connecting layer 231 can also be a PET or foam substrate with adhesive on both sides of double-sided tape, facilitating alignment and fixation, commonly used for medium-strength bonding. The connecting layer 231 can also be a hot-melt adhesive layer, such as thermoplastic materials like EVA (ethylene-vinyl acetate copolymer) or PO (polyolefin), which flows and bonds upon heating and cures upon cooling. The connecting layer 231 can also be a dispensing or coating liquid adhesive, such as epoxy resin or UV adhesive (ultraviolet curing adhesive), allowing precise control of thickness and shape, suitable for complex curved surfaces.

[0054] In some modified embodiments of this application, the thickness of the thermally conductive graphite sheet 232 is 0.05-0.4 mm. The thickness of the thermally conductive graphite sheet 232 is one of its key parameters, directly affecting its flexibility, thermal conductivity, mechanical strength, and applicable scenarios. The thermal conductivity of the thermally conductive graphite sheet 232 is a material property and does not change with thickness, but the total heat conduction increases with the increase of cross-sectional area. The thicker the thermally conductive graphite sheet 232, the longer the path of heat transfer from one side to the other, the slightly higher the interlayer thermal resistance, but the enhanced mechanical strength and tear resistance. In addition, ultra-thin sheets can be bent and fitted to curved surfaces, while thick sheets are prone to breakage or rebound. Therefore, the thickness of the thermally conductive graphite sheet 232 can be 0.05-0.4 mm, which ensures good thermal conductivity while possessing sufficient strength and surface adaptability. The thickness of the thermally conductive graphite sheet 232 can be 0.05 mm, 0.2 mm, 0.3 mm, and 0.4 mm, preferably 0.3 mm.

[0055] For example, a thermally conductive graphite assembly 23, composed of a 0.3mm thick graphite film (thermal conductive graphite sheet 232), a 0.05mm thick PET film (protective layer 233), and a 0.03mm thick adhesive layer (connecting layer 231), can be combined with the metal side panel of a 400L capacity refrigerator to prepare the high-efficiency heat dissipation structure of this invention. This assembly is then placed in the refrigerator and operated for 7 days in a constant temperature and humidity environment of 32℃ and 50% humidity, with an average energy consumption of 0.7476 kWh / day. The thermally conductive graphite sheet 232 on the outside of the refrigerator side panel is then removed, and the refrigerator is placed in a constant temperature and humidity environment of 32℃ and 50% humidity for another 7 days, with an average energy consumption of 0.7612 kWh / day. Therefore, the application of this invention's structure can reduce the overall energy consumption of the refrigerator by 1.78%.

[0056] Alternatively, a thermally conductive graphite assembly 23, composed of a 0.2mm thick graphite film (thermal conductive graphite sheet 232), a 0.05mm thick PET film (protective layer 233), and a 0.03mm thick adhesive layer (connecting layer 231), can be combined with the metal side panel of a 400L capacity refrigerator to prepare the high-efficiency heat dissipation structure of this invention. This assembly is then placed in the refrigerator and operated for 7 days in a constant temperature and humidity environment of 32℃ and 50% humidity, with an average energy consumption of 0.7473 kWh / day. After removing the thermally conductive graphite sheet 232 from the outside of the refrigerator side panel and continuing to operate it for 7 days in a constant temperature and humidity environment of 32℃ and 50% humidity, the average energy consumption is recorded as 0.7596 kWh / day. Therefore, the application of this invention's structure can reduce the overall energy consumption of the refrigerator by 1.61%.

[0057] As can be seen from the above comparison, within a certain range, the relatively thicker 0.3mm thermally conductive graphite sheet 232 with higher thermal resistance has a better heat dissipation effect, thus making the overall energy consumption of the refrigerator more significantly reduced.

[0058] In some modified embodiments of this application, the thickness of the protective layer 233 is 0.02-0.1 mm. If the protective layer 233 is too thick, it will affect the heat dissipation effect; if the protective layer 233 is too thin, it will reduce the strength of the protective layer 233, thereby reducing the protective effect. Therefore, while ensuring strength, the thinner the protective layer 233, the better. For example, the thickness of the protective layer 233 can be 0.02, 0.03 mm, 0.05 mm, and 0.1 mm.

[0059] In some modified embodiments of the first aspect of this application, the thickness of the connecting layer 231 is 0.01-0.03 mm. If the connecting layer 231 is too thin, it is difficult to fill the micro-unevenness of the surface, resulting in poor contact, more air gaps, and increased thermal resistance; the adhesive itself has a low thermal conductivity, and if the connecting layer 231 is too thick, it will form a thermal resistance layer, reducing the overall heat dissipation efficiency. Therefore, the thinner the better, provided that complete adhesion is ensured. For example, the thickness of the connecting layer 231 can be 0.01 mm, 0.02 mm, 0.025 mm, or 0.03 mm.

[0060] like Figure 1 and Figure 2 As shown, in some modified embodiments of the first aspect of this application, the thermally conductive graphite assembly 23 is integrally attached to the surface of the side plate body 21 in a surface contact manner, and the thermally conductive graphite assembly 23 can conform to the geometry of the side plate body 21 and continuously and smoothly cover the planar and curved sections of the side plate body 21.

[0061] The thermally conductive graphite assembly 23 is integrally attached to the surface of the side panel body 21 in a surface-to-surface contact manner, ensuring a large-area, gapless, continuous fit between the thermally conductive graphite assembly 23 and the side panel body 21, rather than point contact or partial bonding. This maximizes the contact area, significantly reducing interfacial thermal resistance and avoiding "hot spots" or uneven heat dissipation caused by local gaps. Adapting to the geometry of the side panel body 21 ensures the thermally conductive graphite assembly 23 possesses sufficient flexibility and deformability to conform to complex shapes such as bends, arcs, reinforcing ribs, and concave-convex structures on the side panel body 21. The thermally conductive graphite sheet 232 itself has excellent flexibility and bendability, which, combined with the elastic connecting layer 231 (such as silicone or pressure-sensitive adhesive), buffers stress and prevents delamination or cracking. Modern refrigerator side panels often have U-shaped folds, reinforcing ribs, mounting holes, and other structures; the thermally conductive graphite assembly 23 can conform to these shapes, ensuring connection strength and heat dissipation. The continuous and smooth coverage of the planar and curved sections of the side panel body 21 ensures that the thermally conductive graphite assembly 23 maintains its integrity and continuity when transitioning from the planar to the curved area, preventing wrinkles, breaks, or delamination. The thermally conductive graphite sheet 232 has good ductility and a small bending radius (accommodating angles R < 5 mm), the adhesive layer has a certain stress release capability, and the edges of the assembly can be rounded to prevent warping.

[0062] The thickness of the thermally conductive graphite sheet 232 can be 0.1–0.23 mm: if it is too thick, it will be too rigid and difficult to bend; if it is too thin, it will be easily damaged. The connecting layer 231 (adhesive layer) can use high-elasticity thermally conductive silicone or flexible pressure-sensitive adhesive, with the thickness controlled within 0.03 mm. The protective layer 233 can be reinforced with an ultra-thin PI film or PET film to improve tensile strength without sacrificing flexibility. A rounded corner design can be used during die-cutting to avoid stress concentration at sharp corners that could cause warping. The components can also be pre-bent to match the side plate corners and improve the bonding accuracy.

[0063] like Figure 3 As shown, a refrigerator includes a refrigerator body 1 and the aforementioned refrigerator side panel structure 2, with the side panel structure 2 disposed on at least one side of the refrigerator body 1. The refrigerator body 1 refers to the core cabinet structure of the refrigerator excluding the refrigerator side panel structure 2; it is the load-bearing frame and functional integration platform of the refrigerator. The refrigerator body 1 can be a single cabinet, a single integral cabinet, with the refrigeration and freezing compartments distributed vertically or horizontally, suitable for two-door or three-door refrigerators; the refrigerator body 1 can also be a double cabinet, divided into an independent refrigeration cabinet and a freezing cabinet, with a partition in the middle, suitable for side-by-side or cross-door refrigerators. The refrigerator body 1 can also be a modular assembly body, welded or assembled from multiple prefabricated modules (such as left, right, and middle cabinets), suitable for large-capacity, built-in, or multi-split refrigerators.

[0064] The refrigerator body 1 includes a compressor 11, a capillary tube 12, an evaporator 13, and a refrigerator compartment 14. The compressor 11 is connected to one end of the condensing structure 22 and is used to compress the refrigerant and increase its temperature and pressure. The condensing structure 22 is used to dissipate heat from the refrigerant. The capillary tube 12 is connected to one end of the condensing structure 22 and is used to reduce the pressure and temperature of the refrigerant to form low-temperature, low-pressure wet vapor. The evaporator 13 is used to evaporate the refrigerant to absorb heat from inside the refrigerator to complete the refrigeration. The refrigerator compartment 14 corresponds to the position of the evaporator 13.

[0065] The compressor 11 is the "heart" of the refrigerator's refrigeration system. Its function is to draw in the low-temperature, low-pressure gaseous refrigerant from the evaporator 13, mechanically compress it into a high-temperature, high-pressure gaseous refrigerant, and then deliver it to the condenser structure 22 to drive the entire refrigeration cycle. For example, the compressor 11 can be a reciprocating compressor 11 (piston type), where a motor drives the piston to reciprocate within the cylinder to achieve compression. This technology is mature, low-cost, and suitable for traditional household refrigerators. The compressor 11 can also be a rotary compressor 11, where the rotor's eccentric rotation compresses the gas, resulting in a compact structure with low vibration and noise, suitable for mid-to-high-end household refrigerators. The compressor 11 can also be a variable frequency compressor 11, which allows for adjustable speed and control of cooling capacity output, offering energy savings, precise temperature control, and smooth start-up, suitable for high-end smart refrigerators and energy-saving models. The refrigerator can also use a linear compressor 11, where the piston is directly driven by a linear motor, eliminating the need for a crankshaft. This results in high efficiency and extremely low noise.

[0066] The capillary tube 12 is a throttling device, typically a long, thin copper tube (with an inner diameter of 0.5–2 mm and a length of 1–6 m), connected between the outlet of the condenser structure 22 and the inlet of the evaporator 13. Its function is to throttle and reduce the pressure of the high-pressure liquid refrigerant, controlling the refrigerant flow rate and changing the refrigerant from a high-temperature, high-pressure liquid to a low-temperature, low-pressure wet vapor (gas-liquid mixture). The capillary tube 12 can be a single capillary tube 12, i.e., a standard capillary tube 12, used in a single evaporator 13 system, suitable for ordinary two-door refrigerators; the capillary tube 12 can also be two capillary tubes 12 connected in parallel, with each capillary tube 12 controlling either the refrigeration or freezing evaporator 13, suitable for three-door or multi-temperature zone refrigerators; the capillary tube 12 can also be combined with a one-way valve, which prevents reverse flow, commonly used in multi-way control air-cooled refrigerators.

[0067] The evaporator 13 is a heat-absorbing component in the refrigeration system, located inside the refrigerator (refrigerator compartment 14 or freezer compartment). Low-temperature, low-pressure wet vapor absorbs heat from the air and food inside the refrigerator, evaporating into a low-temperature, low-pressure gaseous refrigerant, thus completing the refrigeration process. For example, the evaporator 13 can be a plate-tube evaporator 13, with copper tubes attached to an aluminum or steel plate and embedded in the back of the inner liner, suitable for the refrigerator compartment 14 of a direct-cooling refrigerator; the evaporator 13 can also be a wire-tube evaporator 13, with copper tubes and steel wires spot-welded into a mesh, attached to the back of the freezer compartment inner liner, suitable for traditional freezers; the evaporator 13 can also be a finned evaporator 13, with copper tubes featuring aluminum fins to increase the heat exchange area, suitable for frost-free refrigerators, placed within the air duct; the evaporator 13 can also be a concealed evaporator 13, hidden in the side or top panel interlayer, with a clean appearance, suitable for ultra-thin or built-in refrigerators; the microporous evaporator 13 can be made of porous metal or composite materials to achieve uniform cooling, suitable for new high-efficiency refrigerators.

[0068] The refrigerator compartment 14 is the space in the refrigerator used to store foods that do not need to be frozen (such as vegetables, fruits, beverages, cooked food, etc.). Its operating temperature is typically 0℃~10℃, and it is cooled by airflow from the evaporator 13 or air ducts. The refrigerator compartment 14 can be a direct-cooling type, where the evaporator 13 is directly attached to the back of the inner liner, using natural convection cooling, which is low-cost. The refrigerator compartment 14 can also be a fan-cooled type, where cold air is blown in from the freezer compartment or an independent evaporator 13 via a fan, resulting in frost-free operation and uniform temperature, but with slightly higher energy consumption. The refrigerator compartment 14 can also be a hybrid type, primarily using direct cooling with auxiliary air ducts, balancing energy saving and frost prevention.

[0069] like Figure 1 and Figure 4 As shown, in some modified embodiments of this application, there are two refrigerator side panel structures 2, which are respectively arranged on both sides of the refrigerator body 1.

[0070] By setting multiple refrigerator side panel structures 2, the arrangement area of ​​the thermally conductive graphite components 23 can be effectively increased, thereby expanding the heat dissipation coverage area and improving the overall heat conduction capacity. A larger area of ​​the thermally conductive graphite components 23 helps to more efficiently and quickly diffuse the heat generated by the condensation structure 22 to the surface of the side panel body 21, and achieves efficient heat dissipation through convection and radiation between the metal side panels and the environment, significantly improving the heat dissipation efficiency and coefficient of performance (COP) of the refrigerator's refrigeration system. Furthermore, the coordinated heat dissipation of multiple side panels can also achieve uniform heat distribution, avoiding localized overheating and further improving the stability and reliability of system operation. When the refrigerator adopts a dual-sided, triple-sided, or multi-region integrated side panel structure, the thermally conductive graphite components 23 can be arranged continuously or segmentally on multiple side panels to form a surface-array heat conduction network, significantly increasing the total heat dissipation area. Multiple side panel structures can form a closed-loop heat conduction system with the cabinet frame, guiding heat to be evenly distributed along the circumference of the cabinet, reducing heat accumulation, and improving the natural convection heat dissipation effect.

[0071] In some embodiments, a thermally conductive graphite assembly 23, composed of a 0.3mm thick graphite film (thermal conductive graphite sheet 232), a 0.05mm thick PET film (protective layer 233), and a 0.03mm thick adhesive layer (connecting layer 231), can be used to combine with the metal side panel of a 500L capacity refrigerator to prepare the high-efficiency heat dissipation structure of this invention. This assembly is then installed in the refrigerator and operated for 7 days in a constant temperature and humidity environment of 32℃ and 50% humidity, with an average energy consumption of 0.9419 kWh / day. The thermally conductive graphite assembly 23 on the outside of the refrigerator side panel is then removed, and the refrigerator is placed in a constant temperature and humidity environment of 32℃ and 50% humidity for another 7 days, with an average energy consumption of 0.9612 kWh / day. Therefore, the application of this invention's structure can reduce the overall energy consumption of the refrigerator by 2.00%. Comparing this embodiment with the 400L capacity refrigerator mentioned above, it can be seen that the larger the refrigerator volume, the larger the area occupied by the refrigerator side panel structure 2, and the more obvious the energy consumption reduction effect.

[0072] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A refrigerator side panel structure, characterized by, include: Side panel main body (21); A condensation structure (22) is provided on the first side of the side plate body (21); Thermally conductive graphite assembly (23) is disposed on the second side of the side plate body (21); The first side and the second side are opposite sides, and the position of the thermally conductive graphite component (23) corresponds to the position of the condensation structure (22) and is used to dissipate heat from the condensation structure (22).

2. The refrigerator side panel structure according to claim 1, characterized in that, The thermally conductive graphite assembly (23) includes: Thermally conductive graphite sheet (232), the thermally conductive graphite sheet (232) is connected to the side plate body (21); A protective layer (233) covers the side of the thermally conductive graphite sheet (232) away from the side plate body (21) and is used to protect the thermally conductive graphite sheet (232).

3. The refrigerator side panel structure according to claim 2, characterized in that, The thermally conductive graphite assembly (23) further includes a connecting layer (231), which is disposed between the thermally conductive graphite sheet (232) and the side plate body (21) for bonding the thermally conductive graphite sheet (232) and the side plate body (21).

4. The refrigerator side panel structure according to claim 2, characterized in that, The thickness of the thermally conductive graphite sheet (232) is 0.05-0.4 mm.

5. The refrigerator side panel structure according to claim 4, characterized in that, The thickness of the thermally conductive graphite sheet (232) is 0.3 mm.

6. The refrigerator side panel structure according to claim 3, characterized in that, The thickness of the protective layer (233) is 0.02-0.1 mm; The thickness of the connecting layer (231) is 0.01-0.03 mm.

7. The refrigerator side panel structure according to claim 1, characterized in that, The thermally conductive graphite assembly (23) is integrally attached to the surface of the side plate body (21) in a surface contact manner, and the thermally conductive graphite assembly (23) can conform to the geometry of the side plate body (21) and continuously and smoothly cover the planar and curved sections of the side plate body (21).

8. A refrigerator characterized by comprising: include: Refrigerator body (1); The refrigerator side panel structure (2) as described in any one of claims 1-7 is disposed on at least one side of the refrigerator body (1).

9. The refrigerator according to claim 8, characterized in that, The refrigerator body (1) includes: A compressor (11) is connected to one end of the condensing structure (22) for compressing a refrigerant and increasing its temperature and pressure; wherein the condensing structure (22) is used to dissipate heat from the refrigerant. The capillary tube (12) is connected to one end of the condensation structure (22) and is used to reduce the pressure and temperature of the refrigerant to form low-temperature and low-pressure wet vapor. Evaporator (13), the evaporator (13) is used to evaporate refrigerant to absorb heat inside the refrigerator to complete the refrigeration; A refrigerating chamber (14) corresponding to the position of the evaporator (13).

10. The refrigerator according to claim 8, characterized in that, The refrigerator side plate structure (2) is provided with two, and the two refrigerator side plate structures (2) are respectively arranged on both sides of the refrigerator body (1).

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