Refrigeration equipment door body and refrigeration equipment

Abstract

The utility model discloses a refrigeration plant door body and refrigeration plant. The refrigeration plant door body includes door panel, barrier membrane and heat insulation layer. Barrier membrane is located in one side of door panel along first direction, and the periphery edge of barrier membrane is sealedly connected with door panel, and barrier membrane and door panel define accommodating cavity together, and the first direction is same with the thickness direction of door panel. Heat insulation layer is located in accommodating cavity. According to the refrigeration plant door body of the utility model, barrier membrane and door panel define accommodating cavity together, and the accommodating cavity is filled with heat insulation layer, so that door panel, barrier membrane and heat insulation layer jointly construct heat insulation board, that is to say, part of heat insulation board is used as door panel, so the trouble that one side of heat insulation layer needs barrier membrane to isolate separately can be saved, the use amount of barrier membrane is saved, compared with the mode that all around heat insulation layer is wrapped through barrier membrane, under the prerequisite that the size of each component of door body is unchanged, the manufacturing cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a refrigeration equipment door and refrigeration equipment. Background Technology

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

[0003] Vacuum insulation panels, also known as super insulation materials, have a thermal conductivity approximately one-tenth that of traditional foamed insulation materials. They consist of three parts: a barrier membrane, insulation material, and an adsorbent. The barrier membrane's role in the vacuum insulation panel is to prevent external gases from permeating into the interior through the membrane surface, maintaining the vacuum level within the panel and achieving highly efficient insulation.

[0004] Conventional vacuum insulation panels are made by encapsulating a core material, getter, and desiccant within a three-sided sealed barrier film, then evacuating to a certain internal pressure in a vacuum sealing machine before heat-sealing the fourth side to obtain the vacuum insulation panel. The barrier film is then installed into the door of a refrigeration equipment. The current problem is that doors made using this method have low material utilization, resulting in high manufacturing costs. Utility Model Content

[0005] The purpose of this invention is to at least solve the problem of high manufacturing costs caused by low material utilization in refrigeration equipment doors. This purpose is achieved through the following technical solution:

[0006] The first aspect of this utility model provides a door body for a refrigeration device, comprising:

[0007] Door panel;

[0008] A barrier film is disposed on one side of the door panel along a first direction. The four edges of the barrier film are sealed to the door panel, and the barrier film and the door panel together define a receiving cavity. The first direction is the same as the thickness direction of the door panel.

[0009] The heat insulation layer is located inside the cavity.

[0010] According to the present invention, the door of the refrigeration equipment has a barrier film and a door panel that together define a receiving cavity. The receiving cavity is filled with a heat insulation layer, so that the door panel, the barrier film and the heat insulation layer together form a heat insulation board. That is to say, part of the heat insulation board is used as a door panel. This can save the trouble of needing a separate barrier film to isolate one side of the heat insulation layer, thus saving the amount of barrier film used. Compared with the method of wrapping the heat insulation layer completely with a barrier film, the manufacturing cost is lower while keeping the dimensions of each component of the door unchanged.

[0011] In addition, the refrigeration equipment door according to this utility model may also have the following additional technical features:

[0012] In some embodiments of this utility model, the door of the refrigeration equipment further includes an adhesive layer, which is disposed between the barrier film and the door panel. The adhesive layer surrounds the heat insulation layer, and the barrier film is connected to the door panel through the adhesive layer.

[0013] In some embodiments of this utility model, the adhesive layer is a hot melt adhesive layer, which is bonded to the door panel and hot melt welded to the barrier film.

[0014] In some embodiments of this utility model, the refrigeration equipment door further includes a desiccant disposed in the receiving cavity; and / or, the refrigeration equipment door further includes a getter disposed in the receiving cavity.

[0015] In some embodiments of this utility model, the door of the refrigeration equipment also includes a frame, the frame having a receiving space, and the door panel being disposed within the receiving space and connected to the frame's edge.

[0016] In some embodiments of this utility model, the four edges of the door panel are respectively bonded to the frame.

[0017] In some embodiments of this utility model, the door of the refrigeration equipment further includes a door insert disposed on one side of the door panel along a first direction, and at least one of the door panel and the frame is connected to the door insert.

[0018] In some embodiments of this utility model, at least one of the door panel and the frame is bonded to the door core.

[0019] In some embodiments of this utility model, both the barrier film and the heat insulation layer are disposed between the door liner and the door panel.

[0020] In some embodiments of this utility model, the surface of the door panel with the heat insulation layer is the first surface, and along the first direction, the percentage of the projected area of ​​the heat insulation layer on the first surface to the area of ​​the first surface ranges from 70% to 90%.

[0021] The second aspect of this utility model provides a refrigeration equipment door body, including the refrigeration equipment door body described in the first aspect. Attached Figure Description

[0022] 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 scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0023] Figure 1 An exploded view of a refrigeration equipment door according to some embodiments of the present invention is shown schematically;

[0024] Figure 2The diagram schematically illustrates the structure of a refrigeration equipment door body according to some embodiments of the present invention, showing the middle door panel, heat insulation layer, and barrier film connected as a whole.

[0025] Figure 3 for Figure 2 AA sectional view.

[0026] The attached figures are labeled as follows:

[0027] 100. Door of refrigeration equipment;

[0028] 10. Door panels;

[0029] 20. Barrier membrane;

[0030] 30. Insulation layer;

[0031] 40. Adhesive layer;

[0032] 50. Framework;

[0033] 60. Door pier;

[0034] X, the first direction. Detailed Implementation

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] Currently, vacuum insulation panels typically consist of a core material, getter, and desiccant encased within a three-side-sealed barrier membrane, which is then vacuum-sealed to form an independent component before being assembled into the door of the refrigeration equipment. This modular manufacturing method results in redundancy in the barrier membrane material during the encapsulation process. Furthermore, it requires separate handling of the assembly relationship between the vacuum insulation panel and the door, increasing material waste and process complexity, ultimately leading to higher manufacturing costs.

[0040] In traditional processes, the barrier film needs to be formed independently into a vacuum insulation panel, and its encapsulation size must cover the core material and auxiliary materials. Further consideration revealed that if the barrier film is directly integrated with the door structure, using the door panel as the encapsulation substrate, the material waste from manufacturing the vacuum insulation panel separately can be avoided. Therefore, it is proposed to seal the barrier film and door panel together to form a cavity, allowing the insulation layer to be directly embedded inside the door, thereby simplifying the encapsulation process and reducing material consumption.

[0041] Please refer to Figures 1-3According to an embodiment of this utility model, a refrigeration equipment door 100 is provided, including a door panel 10, a barrier film 20, and a heat insulation layer 30. The barrier film 20 is disposed on one side of the door panel 10 along a first direction X, and its four edges are sealed to the door panel 10, together defining a receiving cavity. The heat insulation layer 30 is disposed within the receiving cavity. The first direction X is the same as the thickness direction of the door panel 10.

[0042] Door panel 10 refers to the rigid supporting component constituting the main structure of the door, which can be made of metal plate or composite board, providing a fixing substrate for the barrier membrane 20. Barrier membrane 20 refers to a flexible thin film material with gas barrier properties, which can be a high-heat-resistant composite film, specifically an aluminum-plastic composite film or a metal-plated polymer film, whose edges are sealed to door panel 10 to form a sealed space. Insulation layer 30 refers to the heat-insulating material filled in the sealed space, which can be made of glass fiber, organic fiber, or aerogel insulation material, maintaining its heat insulation performance through the sealing structure between barrier membrane 20 and door panel 10.

[0043] During the preparation process, the door 100 of the refrigeration equipment can be placed in a vacuum environment first, and the barrier membrane 20 and the door panel 10 can be sealed and connected so that the gas in the containment cavity can be discharged after sealing.

[0044] Optionally, a pressure strip is provided on the side of the barrier membrane 20 facing away from the door panel 10, and the pressure strip is connected to the door panel 10 by screws. To improve the reliability of the seal, sealant can be applied between the barrier membrane 20 and the door panel 10, and then the pressure strip can be used to fix and tighten it. In other examples, the barrier membrane 20 and the door panel 10 are fixed by heat fusion welding.

[0045] The barrier membrane 20 is directly applied to the surface of the door panel 10, forming a closed cavity through edge sealing, replacing the traditional process of separately encapsulating vacuum insulation panels. The door panel 10 acts as a supporting structure, fixing the barrier membrane 20. The sealed connection between the barrier membrane 20 and the door panel 10 requires no additional encapsulation process; the insulation layer 30 is directly filled within the cavity formed by the two. This structure eliminates the redundant material required for separate encapsulation of the barrier membrane 20 in traditional processes. Simultaneously, it utilizes the door's own structure to define the space for the insulation layer 30, ensuring a precise match between the size of the barrier membrane 20 and the actual needs of the door panel 10, thus avoiding material waste.

[0046] Compared to existing technologies, traditional solutions require the separate manufacture of vacuum insulation panels before assembly into the door body, resulting in unnecessary losses during the independent encapsulation of the barrier film 20. This solution integrates the barrier film 20 with the door panel 10, directly utilizing the door panel 10 as the encapsulation substrate, eliminating the separate vacuum insulation panel manufacturing step, reducing the cutting losses of the barrier film 20, and simplifying the assembly process.

[0047] Therefore, by using the integrated sealing structure of the barrier film 20 and the door panel 10, the heat insulation layer 30 can be directly encapsulated, avoiding material loss when manufacturing the vacuum insulation board separately, improving the utilization rate of the barrier film 20, and reducing the encapsulation process, thus effectively reducing the manufacturing cost of the refrigeration equipment door 100.

[0048] Please refer to some embodiments of this utility model. Figure 3 The refrigeration equipment door 100 also includes an adhesive layer 40, which is disposed between the barrier film 20 and the door panel 10. The adhesive layer 40 surrounds the heat insulation layer 30, and the barrier film 20 is connected to the door panel 10 through the adhesive layer 40.

[0049] The adhesive layer 40 refers to the intermediate medium layer used to bond the barrier film 20 and the door panel 10. Specifically, it can be bonded by using hot melt adhesive material through a hot pressing process. The adhesive layer 40 forms a continuous annular sealing structure between the barrier film 20 and the door panel 10.

[0050] The surrounding heat insulation layer 30 is arranged in a closed ring shape along the outer contour of the heat insulation layer 30. Specifically, it can be achieved by continuously applying adhesive along the edge of the heat insulation layer 30 using a dispensing machine. This arrangement ensures that the adhesive layer 40 only covers the outer area of ​​the heat insulation layer 30, rather than the entire plane.

[0051] The adhesive layer 40 forms a localized bonding area between the barrier film 20 and the door panel 10. The ring-shaped adhesive layer 40 fixes the edge of the barrier film 20 to the door panel 10, creating a sealed interface. The area covered by the adhesive layer 40 is limited to the periphery of the insulation layer 30, preventing the adhesive layer 40 from covering a large area of ​​the door panel 10 surface. Simultaneously, the closed ring structure blocks the path of gas seeping into the receiving cavity from the interface between the barrier film 20 and the door panel 10. The structure where the barrier film 20 is directly connected to the door panel 10 via the adhesive layer 40 avoids the hassle of separate encapsulation of traditional vacuum insulation panels, allowing the insulation layer 30, the barrier film 20, and the door body to form an integrated structure. This saves redundant material required for separate encapsulation of the barrier film 20 (equivalent to saving material on the portion of the door panel 10 covering the insulation layer 30).

[0052] The barrier film 20 is directly fixed to the door panel 10 by the adhesive layer 40, so that the barrier film 20 only needs to cover the area of ​​the heat insulation layer 30 and the adhesive layer 40, thereby improving the material utilization rate of the barrier film 20.

[0053] Therefore, while ensuring the sealing of the cavity, the area of ​​the barrier film 20 is reduced by optimizing the layout of the adhesive layer 40, and the independent vacuum insulation board encapsulation process is eliminated, thereby reducing material loss and processing costs and improving the material utilization rate of the barrier film 20 during the door manufacturing process.

[0054] Please refer to some embodiments of this utility model. Figure 3The adhesive layer 40 is a hot melt adhesive layer, which is bonded to the door panel 10 and hot melt welded to the barrier film 20.

[0055] Hot melt adhesive refers to a colloidal material that achieves bonding by heating and melting. Specifically, it can be made of polyamide, polyester, or ethylene-vinyl acetate copolymer, which forms a sealed structure after cooling and curing.

[0056] Adhesion refers to the physical bonding between a hot melt adhesive layer and the surface of the door panel 10 in a molten state, or it can be an intermediate medium layer that is physically adhered to the surface of the door panel 10 under normal conditions (non-heated state).

[0057] Hot melt welding refers to using heat to fuse the surface material of the barrier film 20 with the hot melt adhesive layer. Specifically, it can be achieved by high-frequency welding or pulse heat sealing process to form a gapless connection between the barrier film 20 and the adhesive layer 40.

[0058] After a barrier film 20 is applied to one side of the door panel 10 along the first direction X, a hot melt adhesive layer is pre-applied to the edge area of ​​the door panel 10. The adhesive layer 40 is molten by heating, and then the barrier film 20 is placed over the adhesive layer 40 under pressure, allowing the molten adhesive to penetrate to the surface of the barrier film 20. During cooling, the adhesive layer 40 forms an adhesive interface with the door panel 10 and a weld interface with the barrier film 20 through fusion, thus forming a continuous sealed structure surrounding the heat insulation layer 30 between the door panel 10 and the barrier film 20. This method allows the vacuum insulation panel to be concentrated on the door panel 10, eliminating the need for separate sealing of the vacuum insulation panel; instead, the sealing of the barrier film 20 is completed directly during the door assembly process.

[0059] By directly connecting the barrier film 20 to the door panel 10 through a hot melt adhesive layer, the step of independently encapsulating the vacuum insulation board is eliminated, reducing the material consumption of the barrier film 20 and thus reducing the amount of barrier film 20 used. At the same time, it reduces the material waste caused by encapsulating multiple sides through the barrier film 20, thereby effectively reducing manufacturing costs.

[0060] In some embodiments of this utility model, the refrigeration equipment door 100 further includes a desiccant disposed in the receiving cavity; and / or, the refrigeration equipment door 100 further includes a getter disposed in the receiving cavity.

[0061] Desiccant refers to a material used to absorb moisture, which can be implemented using silica gel or molecular sieves. It absorbs moisture in the cavity and prevents water vapor from condensing and causing a decrease in thermal insulation performance.

[0062] Getter refers to a material used to adsorb gases. Specifically, it can be made of zirconium-based alloys or barium-lithium alloys. It maintains the vacuum level of the containment cavity by continuously adsorbing residual gases or gases that have permeated in.

[0063] The desiccant and / or getter are directly placed within the cavity of the door structure. The desiccant captures free water molecules within the cavity through physical adsorption, preventing moisture from condensing into ice crystals and damaging the insulation layer 30 structure at low temperatures. The getter captures gas molecules such as oxygen and nitrogen through chemical or physical adsorption, reducing the interference of gas heat conduction on the vacuum environment. Therefore, after the door is encapsulated with an independent vacuum insulation panel, when a small amount of air and moisture exists in the insulation layer, the desiccant and / or getter can further remove moisture from the cavity, reducing heat conduction and improving the insulation effect. Thus, placing the desiccant and / or getter directly within the door cavity effectively maintains the vacuum stability of the cavity and avoids insulation performance degradation due to moisture or gas residue.

[0064] Please refer to some embodiments of this utility model. Figure 1 The refrigeration equipment door 100 also includes a frame 50, which has a receiving space. The door panel 10 is located in the receiving space and is connected to the frame 50.

[0065] The frame 50 refers to the structural component that supports the door panel 10. It can be made of metal or plastic and formed by injection molding or stamping. Its interior forms a space to fix the door panel 10. The stability of the overall structure is achieved through the connection between the frame 50 and the door panel 10.

[0066] The accommodating space refers to the area inside the frame 50 used to place the door panel 10. Specifically, it can be formed by enclosing the frame 50 with its frame edge. Its size matches the door panel 10 to limit the displacement of the door panel 10, thereby avoiding the extra space required for separately encapsulating the vacuum insulation panel.

[0067] The frame connection refers to the physical connection between the door panel 10 and the frame 50. Specifically, it can be achieved by gluing, snapping or welding. By directly fixing the door panel 10 and the frame 50, the step of separately encapsulating the vacuum insulation board and then installing it in the traditional process is eliminated.

[0068] The edge of the door panel 10 is connected to the frame of the frame 50 to form an integral structure. The barrier film 20 and the heat insulation layer 30 are pre-fixed to the surface of the door panel 10, and the frame of the frame 50 limits the position of the door panel 10, so that the heat insulation layer 30 does not need to be separately packaged as a vacuum insulation panel and can be directly integrated into the door body. As a result, the material of the barrier film 20 required for separate packaging of vacuum insulation panels in traditional processes is simplified. It is only necessary to cover the surface of the door panel 10 with the barrier film 20 and seal it with the frame 50, reducing material waste.

[0069] By directly connecting the frame 50 to the door panel 10, the heat insulation layer 30 is sealed between the door panel 10 and the barrier film 20, eliminating the need for the independent encapsulation of the vacuum insulation panel, thereby reducing the amount of barrier film 20 used and the assembly process.

[0070] The integrated design of frame 50 and door panel 10 simplifies the assembly process and reduces manufacturing costs.

[0071] Please refer to some embodiments of this utility model. Figure 1 The four edges of the door panel 10 are respectively glued to the frame.

[0072] The four edges of the door panel 10 refer to the continuous closed area around the door panel 10.

[0073] The frame refers to the frame structure 50 used to support and fix the door body. It can be made of metal or plastic profiles. The bonding between the frame and the edge of the door panel 10 can replace the traditional mechanical fixing structure.

[0074] Bonding refers to a connection method that combines two components into one using an adhesive. Specifically, it can be achieved using hot melt adhesive or pressure-sensitive adhesive layers. The continuous sealing layer formed by bonding can prevent external moisture from penetrating.

[0075] The door panel 10 and its frame are bonded together to form a closed, sealed interface, eliminating the need for additional sealing structures or complex assembly components inside the door. The bonding process uses automated adhesive applicator to evenly apply adhesive to the edges of the door panel 10, followed by pressing the frame onto the bonding surface. After curing, a stable, sealed connection is formed. Because the bonding process eliminates the need for pre-drilled mounting holes or auxiliary fasteners, the material utilization rate of the door panel 10 and its frame is improved, while the manufacturing process is simplified.

[0076] By using adhesive bonding, compared to fixing with fasteners such as screws, the sealing structure is simplified and the connection method is optimized, reducing manufacturing costs while ensuring the door's sealing performance and meeting the requirements for blocking moisture.

[0077] Please refer to some embodiments of this utility model. Figure 1 The refrigeration equipment door 100 also includes a door insert 60 disposed on one side of the door panel 10 along the first direction X, and at least one of the door panel 10 and the frame 50 is connected to the door insert 60.

[0078] The door liner 60 refers to the supporting structure installed inside the refrigeration equipment door 100. It can be made of plastic injection molding or metal stamping and is used to provide an installation base for the barrier membrane 20 and the heat insulation layer 30. The frame 50 refers to the reinforcing component that wraps around the edge of the door panel 10. It can be made of injection molding frame structure and is used to improve the overall structural strength of the door and limit the installation position of the door panel 10.

[0079] The door panel 10 is assembled within the receiving space of the frame 50 to form a basic support structure, and the door insert 60 is arranged along the thickness direction of the door panel 10 on its outer side. By directly connecting the door insert 60 to the door panel 10 or the frame 50, a stable multi-layer composite structure is formed. This integrated design allows the barrier film 20 and the heat insulation layer 30 to be directly filled in the gap between the door insert 60 and the door panel 10, eliminating the need to separately manufacture a vacuum insulation panel and then perform secondary assembly, thereby reducing the cutting waste of the barrier film 20 material.

[0080] This reduces the amount of additional barrier film 20 required for separate encapsulation of the vacuum insulation panel. It also simplifies the door assembly process, as the direct connection between the frame 50 and the door liner 60 creates a stable installation space, allowing the insulation layer 30 to be directly filled within this space for encapsulation, thus reducing material waste and processing costs during production.

[0081] Please refer to some embodiments of this utility model. Figure 1 At least one of the door panel 10 and the frame 50 is bonded to the door core 60.

[0082] Door panel 10 refers to the main structural component that forms the outer layer of the refrigeration equipment door 100. It can be made of materials such as metal, plastic, or glass and is used to support the overall structure of the door. In this solution, door panel 10 serves as the installation base for barrier film 20 and heat insulation layer 30, and its bonding with door liner 60 can avoid cold air transfer paths caused by openings.

[0083] The frame 50 refers to the supporting structure surrounding the edge of the door panel 10, typically made of metal profiles or injection-molded parts, used to fix the door panel 10 and maintain the shape of the door. In this solution, the bonding of the frame 50 to the door core 60 can replace the traditional screw connection, eliminating material waste caused by drilling.

[0084] The door liner 60 refers to the thermal insulation structural component located inside the door, typically made of foamed material or vacuum insulation board, used to prevent cold loss. In this design, the door liner 60 forms a continuous sealed interface with the door panel 10 or frame 50 through bonding, reducing the cold bridging effect.

[0085] Bonding refers to the use of adhesives to achieve a fixed connection between components, specifically hot melt adhesives, epoxy resins, or polyurethane adhesives. In this solution, bonding eliminates the need to drill connection holes in the door panel 10 or frame 50, directly improving material utilization.

[0086] When assembling the refrigeration equipment door 100, at least one component of the door panel 10 or frame 50 is fixedly connected to the door liner 60 by adhesive. For example, when the door panel 10 is bonded to the door liner 60, an adhesive layer 40 is applied between their contact surfaces and cured under pressure to form a stable connection; when the frame 50 is bonded to the door liner 60, the adhesive layer 40 is continuously applied along the edge of the frame 50 to ensure sealing. Since there is no need to drill screw holes in the door panel 10 or frame 50, material waste is significantly reduced, and the heat conduction path formed by metal screws is avoided, thereby reducing the outward transfer of cold energy through the connection points.

[0087] This not only eliminates the need for screw connections through openings, but also blocks the cold energy transfer channel through the low thermal conductivity of the adhesive layer 40, thus optimizing the overall thermal insulation performance of the door.

[0088] Please refer to some embodiments of this utility model. Figure 1 and Figure 3 The barrier membrane 20 and the heat insulation layer 30 are both located between the door liner 60 and the door panel 10.

[0089] The "door core 60" refers to the supporting structure inside the door, which can be implemented using high-strength plastic parts formed by injection molding.

[0090] A barrier film 20 is positioned between the door liner 60 and the door panel 10, and a heat insulation layer 30 is sandwiched within the sealed space formed by the barrier film 20 and the door panel 10. The door liner 60 and the door panel 10 are fixed together by edge bonding, allowing the barrier film 20 and the heat insulation layer 30 to be integrated directly into the internal structure of the door without needing to be packaged as separate modules. During door assembly, the barrier film 20 and the door panel 10 are sealed together by a hot melt adhesive layer, the heat insulation layer 30 fills the space between them, and the door liner 60 further covers the outside of the barrier film 20 and is fixed together by bonding.

[0091] In some embodiments of this utility model, the surface of the door panel 10 with the heat insulation layer 30 is the first surface, and along the first direction X, the percentage of the projected area of ​​the heat insulation layer 30 on the first surface to the area of ​​the first surface ranges from 70% to 90%.

[0092] This ensures that the door panel 10 has sufficient insulation area for heat insulation, thereby reducing the loss of cooling capacity of the refrigeration equipment.

[0093] According to the embodiments of this utility model, a refrigeration device is proposed, including the refrigeration device door 100 described in the above embodiments.

[0094] Refrigeration equipment can be, but is not limited to, freezers or refrigerators.

[0095] The refrigeration equipment also includes a refrigeration body, which has a storage compartment for storing frozen and / or refrigerated items. The storage compartment has an access port. The refrigeration equipment door 100 is located at the access port and pivotally connected to the refrigeration body to enable the access port to be opened and closed.

[0096] Refrigeration equipment typically includes refrigeration components, specifically compressors, four-way valves, condensers, and evaporators. The specific connection structure is the same as that of existing refrigeration equipment, and will not be described in detail here.

[0097] When the refrigeration equipment door 100 includes a door insert 60, the door insert 60 is positioned opposite the retrieval opening, that is, the door insert 60 is located on the side of the refrigeration equipment door 100 facing the retrieval opening.

[0098] The refrigeration equipment door 100 refers to a structure composed of a door panel 10, a barrier film 20, and a heat insulation layer 30. The barrier film 20 is disposed on one side of the door panel 10 along a first direction X, and its four edges are sealed to the door panel 10 to form a sealed cavity for accommodating the heat insulation layer 30. The barrier film 20 can be made of multi-layer composite materials, such as a composite of metallized polyester film and polyethylene layer, and its function is to prevent external gas penetration and maintain a vacuum environment inside the cavity. The heat insulation layer 30 can be made of glass fiber or aerogel material, and its thermal conductivity is reduced through vacuum treatment. The door panel 10 can be made of metal or plastic, such as aluminum alloy or polyurethane sheet, to provide structural support and connect with other components of the refrigeration equipment.

[0099] The barrier film 20 and the door panel 10 are sealed together to form a cavity that accommodates the insulation layer 30, eliminating the need for a separate vacuum insulation panel in traditional processes. During the door forming process, the barrier film 20 is directly encapsulated as part of the door structure, avoiding the waste of cutting the barrier film 20 when making a separate vacuum insulation panel. The insulation layer 30 achieves its insulation function through vacuum treatment within the cavity, eliminating the need for additional encapsulation as a separate panel. The integrated design of the door panel 10 and the barrier film 20 significantly improves material utilization and simplifies the assembly process of the refrigeration equipment door 100.

[0100] By integrating the barrier film 20 into the door body, i.e., connecting the barrier film 20 to the door panel 10, a receiving cavity is formed to accommodate the heat insulation layer 30, thereby completing the encapsulation and fixation of the heat insulation layer 30, thus reducing the amount of barrier film 20 used. In addition, the separate encapsulation step of the vacuum insulation panel is eliminated, saving installation steps and improving assembly efficiency, thereby shortening the production cycle.

[0101] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model 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 this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A door for a refrigeration equipment, characterized in that, include: Door panel; A barrier film is disposed on one side of the door panel along a first direction. The four edges of the barrier film are sealed to the door panel, and the barrier film and the door panel together define a receiving cavity. The first direction is the same as the thickness direction of the door panel. A heat insulation layer is disposed within the cavity.

2. The refrigeration equipment door according to claim 1, characterized in that, The door of the refrigeration equipment also includes an adhesive layer, which is disposed between the barrier film and the door panel. The adhesive layer surrounds the heat insulation layer, and the barrier film is connected to the door panel through the adhesive layer.

3. The refrigeration equipment door according to claim 2, characterized in that, The adhesive layer is a hot melt adhesive layer, which is bonded to the door panel and hot melt welded to the barrier film.

4. The refrigeration equipment door according to claim 1, characterized in that, The refrigeration equipment door also includes a desiccant disposed within the receiving cavity; and / or, the refrigeration equipment door also includes a getter disposed within the receiving cavity.

5. The refrigeration equipment door according to any one of claims 1-4, characterized in that, The refrigeration equipment door also includes a frame, the frame having a receiving space, and the door panel located within the receiving space and connected to the frame's edge.

6. The refrigeration equipment door according to claim 5, characterized in that, The four edges of the door panel are respectively bonded to the frame.

7. The refrigeration equipment door according to claim 5, characterized in that, The refrigeration equipment door also includes a door insert disposed on one side of the door panel along the first direction, and at least one of the door panel and the frame is connected to the door insert.

8. The refrigeration equipment door according to claim 7, characterized in that, At least one of the door panel and the frame is bonded to the door core.

9. The refrigeration equipment door according to claim 7, characterized in that, Both the barrier film and the heat insulation layer are located between the door liner and the door panel.

10. The refrigeration equipment door according to any one of claims 1-4, characterized in that, The surface of the door panel where the heat insulation layer is provided is the first surface, and along the first direction, the percentage of the projected area of ​​the heat insulation layer on the first surface to the area of ​​the first surface ranges from 70% to 90%.

11. A refrigeration device, characterized in that, Includes the refrigeration equipment door as described in any one of claims 1-10.

Images