Direct cooling refrigerator liner assembly and assembly method

Abstract

The present application provides a direct cooling refrigerator liner component and an assembly method, the direct cooling refrigerator liner component comprising: a refrigerator liner, an evaporator tube, a foaming layer, a sealing plate, a first sealing tape and a second sealing tape; the refrigerator liner is a rectangular cavity structure, the sealing plate, the evaporator tube and the foaming layer are sequentially arranged on the liner wall of the refrigerator liner, by connecting the sealing plate and the liner wall of the refrigerator liner to each other; the first sealing tape is arranged at the connection between the sealing plate and the liner wall of the refrigerator liner, so that the gap between the sealing plate and the liner wall of the refrigerator liner is closed; the evaporator tube is evenly laid on the sealing plate; the second sealing tape is covered on the evaporator tube, so that the gap between the evaporator tube and the sealing plate is closed; a foaming mold is placed on the liner wall of the refrigerator liner; a foaming agent is filled into the foaming mold to form a foaming layer, and after the foaming layer is formed, the foaming mold is taken out, so as to solve the problem that the direct cooling refrigerator liner is deformed and damaged due to the influence of temperature during the foaming process.

Description

Technical Field

[0001] The present application relates to the technical field of direct cooling refrigerators, and in particular to a direct cooling refrigerator liner assembly and an assembly method. Background Art

[0002] A refrigerator is a refrigeration device that maintains a constant low temperature. It is also a civilian product that keeps food or other items in a constant low temperature state. A refrigerator is mainly composed of a compressor, a condenser, a filter, a capillary tube and an evaporator. The function of the evaporator is to absorb the heat in the refrigerator to keep the refrigerator tank at a low temperature.

[0003] When assembling the refrigeration evaporator of a direct cooling refrigerator, the evaporator tubes are usually directly distributed on the rear wall of the refrigerator inner tank or a layer of aluminum foil tape is first attached to the rear wall of the refrigerator inner tank and then the evaporator tubes are distributed. The methods of directly distributing the evaporator tubes on the rear wall of the inner tank or only attaching a layer of aluminum foil tape and then distributing the evaporator tubes have great hidden dangers. Because the materials of most refrigerator inner tanks are acrylonitrile-butadiene-styrene plastic (ABS) and high impact polystyrene (HIPS), the refrigerator inner tank is affected by temperature during the foaming process, resulting in weakened strength and deformation of the inner tank; it also leads to poor thermal conductivity, affecting the refrigeration effect and inner tank quality of the refrigerator. Summary of the invention

[0004] The present application provides a direct-cooling refrigerator liner component and an assembly method to solve the problem that the direct-cooling refrigerator liner is deformed and damaged due to the influence of temperature during the foaming process.

[0005] On the one hand, the present application provides a direct-cooling refrigerator liner assembly, comprising: a refrigerator liner, an evaporator tube, a foaming layer, a sealing plate, a first sealing tape and a second sealing tape; wherein the refrigerator liner is a rectangular cavity structure, the sealing plate, the evaporator tube and the foaming layer are sequentially arranged on the liner wall of the refrigerator liner, and the edge of the sealing plate is connected to the liner wall of the refrigerator liner through the first sealing tape; the second sealing tape is arranged between the evaporator tube and the foaming layer, and is used to isolate the evaporator tube and the foaming layer.

[0006] The liner wall of the refrigerator liner, the sealing plate, the evaporator tube, the second sealing tape and the foaming layer are connected in sequence to isolate the evaporator tube and the liner wall of the refrigerator liner, and to isolate the evaporator tube and the foaming layer; and the first sealing tape is set at the connection between the sealing plate and the liner wall of the refrigerator liner to close the gap between the sealing plate and the liner wall of the refrigerator liner, so as to solve the problem of deformation and damage of the direct cooling refrigerator liner due to the influence of temperature during the foaming process.

[0007] Optionally, the sealing plate is an aluminum plate with a thickness of 0.5-0.6 mm.

[0008] Since the aluminum plate has the advantages of being not easy to rust, having good thermal conductivity and strong bearing capacity, the aluminum plate with a thickness of 0.5-0.6 mm can not only meet the ability to resist deformation during the foaming process, but also save materials, and at the same time can protect the refrigerator liner and increase the service life of the refrigerator.

[0009] Optionally, the first sealing tape and the second sealing tape are aluminum foil tapes with a width of 60-70 mm.

[0010] Since the aluminum foil tape has the advantages of good viscosity, strong adhesion and anti-aging, the aluminum foil tape with a width of 60-70 mm can not only meet the function of sealing the gap between the evaporator tube and the sealing plate, but also isolate the evaporator tube from the foaming layer.

[0011] Optionally, the aperture of the cross section of the evaporator tube is 5-7 mm, and the center line spacing of the evaporator tube is 50-60 mm.

[0012] The evaporator tube with a cross-sectional aperture of 5-7 mm can transmit low-temperature and low-pressure refrigerant liquid that meets the refrigeration requirements of food in the refrigerator liner. The centerline spacing of the evaporator tube is 50-60 mm, so that the evaporator tube can evenly absorb the heat in the refrigerator liner.

[0013] Optionally, a tube groove is provided on the refrigerator liner, and the tube groove is evenly embedded in the wall of the refrigerator liner in a comb shape, and the inlet and outlet of the tube groove are located on the same side of the refrigerator liner; the diameter of the tube groove is larger than the diameter of the evaporator tube.

[0014] The tube groove is evenly embedded in the wall of the refrigerator inner tank in a comb shape so that each part of the wall of the refrigerator inner tank and the evaporator tube can evenly exchange heat. The inlet and outlet of the tube groove are located on the same side of the refrigerator inner tank to facilitate the arrangement of the evaporator tube. The diameter of the tube groove is larger than the diameter of the evaporator tube to facilitate the placement of the evaporator tube in the tube groove.

[0015] Optionally, a sealing groove is provided on the sealing plate, the shape of the outside of the sealing groove is the same as the shape of the inside of the tube groove, and the evaporator tube is clamped in the sealing groove.

[0016] The shape of the outer side of the sealing groove is the same as the shape of the inner side of the tube groove, so that the sealing plate can be more closely fitted to the refrigerator inner tank, which is convenient for the evaporator to absorb heat. The evaporator tube is clamped with the sealing groove to fix the evaporator tube, thereby reducing the uneven heat exchange between the inner tank wall of the refrigerator and the evaporator tube caused by the movement of the evaporator tube.

[0017] Optionally, the foaming layer is a polyurethane foaming layer formed by reacting polyisocyanate and combined polyether in a ratio of 1:1.

[0018] The polyurethane foam layer formed by the reaction of polyisocyanate and combined polyether in a ratio of 1:1 has moderate hardness and softness. It is neither easily deformed due to being too soft nor easily broken due to being too hard.

[0019] Another aspect of the present application provides a method for assembling a direct-cooling refrigerator liner assembly, using any one of the direct-cooling refrigerator liner assemblies described in the above schemes, the assembly method comprising:

[0020] Connect the sealing plate and the wall of the refrigerator liner to each other;

[0021] The first sealing tape is arranged at the connection between the sealing plate and the wall of the refrigerator inner tank, so that the gap between the sealing plate and the wall of the refrigerator inner tank is sealed;

[0022] evenly laying evaporator tubes on the sealing plate;

[0023] Covering the evaporator tube with a second sealing tape so that the gap between the evaporator tube and the sealing plate is sealed;

[0024] Placing a foaming mold on the wall of the refrigerator liner;

[0025] A foaming agent is filled into the foaming mold to form a foaming layer, and after the foaming layer is formed, the foaming mold is taken out.

[0026] The method comprises the following steps: connecting the sealing plate and the wall of the refrigerator liner to each other; setting the first sealing tape at the connection between the sealing plate and the wall of the refrigerator liner so that the gap between the sealing plate and the wall of the refrigerator liner is closed; evenly laying the evaporator tube on the sealing plate; covering the evaporator tube with the second sealing tape so that the gap between the evaporator tube and the sealing plate is closed; and filling the foaming agent to form the foaming layer to solve the problem that the direct cooling refrigerator liner is deformed and damaged due to the influence of temperature during the foaming process.

[0027] Optionally, before the sealing plate and the wall of the refrigerator liner are connected to each other, the assembly method further comprises:

[0028] Check whether the dimensions of the foaming mold, the evaporator tube, the sealing plate, the first sealing tape and the second sealing tape meet the specified dimensions:

[0029] If any one or more sizes of the foaming mold, the evaporator tube, the sealing plate, the first sealing tape and the second sealing tape do not meet the specified size, replace the foaming mold, the evaporator tube, the sealing plate, the first sealing tape and the second sealing tape that do not meet the specified size;

[0030] The wall of the refrigerator inner tank is cleaned to ensure that there is no residual glue and granular impurities on the surface of the wall of the refrigerator inner tank.

[0031] The foaming mold meets the specified size, which can make the foaming layer and the refrigerator liner fit more closely, thereby reducing temperature loss. The evaporator tube meets the specified size, which not only meets the refrigeration requirements of the food in the refrigerator liner, but also allows various parts of the liner wall of the refrigerator liner to exchange heat evenly with the evaporator tube. The sealing plate meets the specified size, which can not only meet the ability to resist deformation during the foaming process, but also save materials, and at the same time protect the refrigerator liner and increase the service life of the refrigerator. The first sealing tape and the second sealing tape meet the specified size, which can not only meet the function of sealing the gap between the evaporator tube and the sealing plate, but also isolate the evaporator tube and the foaming layer. Cleaning the liner wall of the refrigerator liner can make the sealing plate and the liner wall of the refrigerator liner more tightly connected.

[0032] Optionally, before placing the foaming mold on the wall of the refrigerator liner, the assembly method further comprises:

[0033] Compressing the first sealing tape and the second sealing tape;

[0034] Check whether the first sealing belt and the second sealing belt are installed tightly:

[0035] If the installation is not tight, repeat the compression of the first sealing tape and the second sealing tape.

[0036] The above method can further reduce the problem that the first sealing tape and the second sealing tape are not installed tightly, resulting in the foaming agent contacting the evaporator and the inner tank when the foaming agent is filled, causing the refrigerator inner tank to be deformed and damaged due to the temperature during the foaming process.

[0037] It can be seen from the above technical scheme that the present application provides a direct-cooling refrigerator liner assembly and an assembly method, wherein the direct-cooling refrigerator liner assembly includes: a refrigerator liner, an evaporator tube, a foaming layer, a sealing plate, a first sealing tape and a second sealing tape; wherein the refrigerator liner is a rectangular cavity structure, the sealing plate, the evaporator tube and the foaming layer are sequentially arranged on the liner wall of the refrigerator liner, and the edge of the sealing plate is connected to the liner wall of the refrigerator liner through the first sealing tape; the second sealing tape is arranged between the evaporator tube and the foaming layer, and is used to isolate the evaporator tube and the foaming layer. The sealing plate and the wall of the refrigerator inner tank are connected to each other; the first sealing tape is set at the connection between the sealing plate and the wall of the refrigerator inner tank, so that the gap between the sealing plate and the wall of the refrigerator inner tank is closed; the evaporator tube is evenly laid on the sealing plate; the second sealing tape is covered on the evaporator tube, so that the gap between the evaporator tube and the sealing plate is closed; and the foaming agent is filled to form the foaming layer to solve the problem that the inner tank of the direct cooling refrigerator is deformed and damaged due to the influence of temperature during the foaming process. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0039] Figure 1 A schematic diagram of the structure of the direct cooling refrigerator liner assembly provided in this application;

[0040] Figure 2 A schematic diagram of the pipe groove structure of the direct cooling refrigerator liner assembly provided in this application;

[0041] Figure 3 A schematic diagram of the closed groove structure of the direct cooling refrigerator liner assembly provided in this application;

[0042] Figure 4 A schematic diagram of a trapezoidal evaporation tube structure of another embodiment of a direct cooling refrigerator liner assembly provided in the present application;

[0043] Figure 5 A schematic diagram of a trapezoidal tube groove structure of another embodiment of a direct cooling refrigerator liner assembly provided in the present application;

[0044] Figure 6 A schematic diagram of the process flow of the direct cooling refrigerator liner assembly assembly method provided in this application;

[0045] Figure 7 A schematic diagram of the assembly method before the connection of the inner tank assembly of the direct cooling refrigerator provided in the present application;

[0046] Figure 8 A schematic flow chart of the assembly method of the direct cooling refrigerator liner assembly before foaming provided in the present application.

[0047] Illustration Description:

[0048] Among them, 1-refrigerator liner; 11-tube groove; 111-clip; 112-inner groove; 12-trapezoidal tube groove; 121-trapezoidal clip; 122-trapezoidal inner groove; 2-sealing plate; 21-sealing groove; 3-evaporator tube; 31-trapezoidal evaporation tube; 4-first sealing belt; 5-second sealing belt. DETAILED DESCRIPTION

[0049] The following embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following embodiments do not represent all implementations consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as detailed in the claims.

[0050] Direct cooling refrigerators use natural convection of air inside the refrigerator to cool food. Because the evaporator is usually installed at the top of the refrigerator, when the air around the evaporator exchanges heat with the evaporator, the air transfers heat to the evaporator, and the evaporator transfers cold energy to the air. After the air absorbs the cold energy, the temperature drops, the density increases, and it moves downward.

[0051] When assembling the refrigeration evaporator of a direct cooling refrigerator, in some embodiments, the evaporator tubes are directly distributed on the rear wall of the inner tank or only a layer of aluminum foil tape is affixed to redistribute the evaporator tubes. Since the materials of the refrigerator inner tank are mostly acrylonitrile-butadiene-styrene and high-impact polystyrene, the refrigerator inner tank is affected by temperature during the foaming process, resulting in weakened strength and deformation of the inner tank; at the same time, it also leads to poor thermal conductivity, affecting the refrigeration effect and inner tank quality of the refrigerator.

[0052] See also Figure 1-Figure 8 ,in, Figure 1 It is a schematic diagram of the structure of a direct cooling refrigerator liner assembly; Figure 2 It is a schematic diagram of the tube groove structure of a direct cooling refrigerator liner assembly; Figure 3 It is a schematic diagram of a closed groove structure of a direct cooling refrigerator liner assembly; Figure 4 A schematic diagram of a trapezoidal evaporation tube structure of another embodiment of a direct cooling refrigerator liner assembly; Figure 5 A schematic diagram of a trapezoidal tube groove structure of another embodiment of a direct cooling refrigerator liner assembly; Figure 6 A schematic diagram of a process for assembling a direct cooling refrigerator liner assembly; Figure 7A schematic diagram of a process flow of an assembly method before connecting a direct cooling refrigerator liner component; Figure 8 The present invention is a schematic flow chart of an assembly method of a direct cooling refrigerator liner component before foaming.

[0053] In order to solve the problem that the inner tank of a direct-cooling refrigerator is deformed and damaged due to the influence of temperature during the foaming process, some embodiments of the present application provide a direct-cooling refrigerator inner tank assembly, including: a refrigerator inner tank 1, an evaporator tube 3, a foaming layer, a sealing plate 2, a first sealing tape 4 and a second sealing tape 5; wherein, the refrigerator inner tank 1 is a rectangular cavity structure, the sealing plate 2, the evaporator tube 3 and the foaming layer are sequentially arranged on the tank wall of the refrigerator inner tank 1, and the edge of the sealing plate 2 is connected to the tank wall of the refrigerator inner tank 1 through the first sealing tape 4; the second sealing tape 5 is arranged between the evaporator tube 3 and the foaming layer, and is used to isolate the evaporator tube 3 and the foaming layer.

[0054] It should be understood that, since the refrigerator body is a rectangular cavity structure, the refrigerator liner 1 is a rectangular cavity structure, and the storage space is larger. Therefore, the shape of the refrigerator liner 1 is not fixed. When the shape of the refrigerator body changes, the shape of the refrigerator liner 1 also changes. In addition, the foaming layer is not prepared in advance, but after the refrigerator liner 1, the sealing plate 2, the evaporator tube 3, the first sealing tape 4 and the second sealing tape 5 are connected, the foaming agent is filled to form the foaming layer.

[0055] The wall of the refrigerator liner 1, the sealing plate 2, the evaporator tube, the second sealing tape 5 and the foaming layer are connected in sequence to isolate the evaporator tube 3 and the wall of the refrigerator liner 1 and to isolate the evaporator tube 3 and the foaming layer; the first sealing tape 4 is arranged at the connection between the sealing plate 2 and the wall of the refrigerator liner 1 so that the gap between the sealing plate 2 and the wall of the refrigerator liner 1 is closed to solve the problem of deformation and damage of the direct cooling refrigerator liner due to the influence of temperature during the foaming process.

[0056] In some embodiments, the sealing plate 2 is an aluminum plate with a thickness of 0.5-0.6 mm.

[0057] It should be understood that the length and width of the sealing plate 2 are determined according to the length and width of the refrigerator liner 1. For example, if the length of the refrigerator liner 1 is 1000 mm and the width is 600 mm, then the length of the sealing plate 2 is 900 mm and the width is 500 mm.

[0058] Since the aluminum plate has the advantages of being not easy to rust, having good thermal conductivity and strong bearing capacity, the aluminum plate with a thickness of 0.5-0.6 mm can not only meet the ability to resist deformation during the foaming process, but also reduce the use of aluminum plate materials, while protecting the refrigerator liner 1 and increasing the service life of the refrigerator.

[0059] In some embodiments, the first sealing tape 4 and the second sealing tape 5 are aluminum foil tapes with a width of 60-70 mm.

[0060] It should be understood that since the aluminum foil tape with a width of 60-70 mm can cover one evaporator pipeline at a time, the gap between the aluminum foil tapes is reduced, and the implementation inconvenience will not be caused by the aluminum foil tape being too wide. Specifically, the aluminum foil tape with a width of 65 mm can be selected.

[0061] The aluminum foil tape has the advantages of good viscosity, strong adhesion and anti-aging. The aluminum foil tape with a width of 60-70 mm can not only seal the gap between the evaporator tube 3 and the sealing plate 2, but also isolate the evaporator tube 3 from the foaming layer.

[0062] In some embodiments, the aperture of the cross section of the evaporator tube 3 is 5-7 mm, and the center line spacing of the evaporator tube 3 is 50-60 mm.

[0063] Specifically, the aperture of the cross section of the evaporator tube 3 can be selected to be 6 mm, and the center line spacing of the evaporator tube 3 can be selected to be 55 mm.

[0064] Since the aperture of the cross section of the evaporator tube 3 is related to the refrigerant and the compressor of the refrigerator, the evaporator tube 3 with a cross section aperture of 5-7 mm can transmit low-temperature and low-pressure refrigerant liquid that meets the food refrigeration requirements of the refrigerator liner 1. The center line spacing of the evaporator tube 3 is 50-60 mm, so that each part of the wall of the refrigerator liner 1 can be evenly heat exchanged with the evaporator tube 3.

[0065] In some embodiments, a tube groove 11 is provided on the refrigerator inner tank 1, and the tube groove 11 is evenly embedded in the tank wall of the refrigerator inner tank 1 in a comb shape, and the pipe inlet and outlet of the tube groove 11 are located on the same side of the refrigerator inner tank 1; the diameter of the tube groove 11 is larger than the diameter of the evaporator tube 3.

[0066] It should be understood that if Figure 2 As shown, the tube groove 11 includes a buckle 111 and an inner groove 112; the inner groove 112 is used to place the evaporator tube 3, and the buckle 111 is used to clamp the evaporator tube 3, so that the evaporator tube 3 can be installed more securely.

[0067] The tube groove 11 is evenly embedded in the wall of the refrigerator inner tank 1 in a comb shape so that each part of the wall of the refrigerator inner tank 1 and the evaporator tube 3 can evenly exchange heat. The inlet and outlet of the tube groove 11 are located on the same side of the refrigerator inner tank 1, which is convenient for arranging the evaporator tube 3. The diameter of the tube groove 11 is larger than the diameter of the evaporator tube 3, which is convenient for placing the evaporator tube 3 in the tube groove 11.

[0068] In some embodiments, a sealing groove 21 is provided on the sealing plate 2 , the outer shape of the sealing groove 21 is the same as the inner shape of the tube groove 11 , and the evaporator tube 3 is snap-fitted to the sealing groove 21 .

[0069] The shape of the outer portion of the sealing groove 21 is the same as the shape of the inner portion of the tube groove 11, so that the sealing plate 2 can be more closely fitted to the refrigerator liner 1, which is convenient for the evaporator to absorb heat. The evaporator tube 3 can be fixed by being clamped with the sealing groove 21, so as to reduce the uneven heat exchange between the wall of the refrigerator liner 1 and the evaporator tube 3 caused by the movement of the evaporator tube 3.

[0070] In some embodiments, the foaming layer is a polyurethane foaming layer formed by reacting a polyisocyanate and a combined polyether in a ratio of 1:1.

[0071] The polyurethane foam layer formed by the reaction of polyisocyanate and combined polyether in a ratio of 1:1 has moderate hardness and softness. It is neither easily deformed due to being too soft nor easily broken due to being too hard.

[0072] like Figure 4 As shown, in some other embodiments, the evaporator tube 3 is a trapezoidal evaporator tube 31, and the contact surface of the trapezoidal evaporator tube 31 on the side close to the refrigerator inner tank 1 is increased, which makes it easier to absorb the heat in the refrigerator, so that the refrigerator inner tank 1 is maintained at a low temperature.

[0073] It should be understood that since the shapes of the tube groove 11 and the sealing groove 21 change with the shape of the evaporator tube 3, Figure 5 As shown, when the evaporator tube 3 is a trapezoidal evaporation tube 31, the tube groove 11 is replaced with a trapezoidal tube groove 12; wherein, the trapezoidal tube groove 12 includes a trapezoidal buckle 121 and a trapezoidal inner groove 122; the trapezoidal inner groove 122 is used to place the sealing groove 21 and the trapezoidal evaporation tube 31, and the trapezoidal buckle 121 is used to clamp the trapezoidal evaporation tube 31, so that the trapezoidal evaporation tube 31 can be installed more securely.

[0074] Another embodiment of the present application provides a method for assembling a direct cooling refrigerator liner assembly, using any of the direct cooling refrigerator liner assemblies described in the above embodiments, such as Figure 6 As shown, the assembly method includes:

[0075] S300: Connecting the sealing plate 2 and the wall of the refrigerator inner tank 1 to each other;

[0076] S400: placing a first sealing tape 4 at the connection between the sealing plate 2 and the wall of the refrigerator inner tank 1, so that the gap between the sealing plate 2 and the wall of the refrigerator inner tank 1 is sealed;

[0077] S500: evenly laying the evaporator tubes 3 on the sealing plate 2;

[0078] S600: Covering the evaporator tube 3 with the second sealing tape 5 so that the gap between the evaporator tube 3 and the sealing plate 2 is sealed;

[0079] S700: placing a foaming mold on the wall of the refrigerator liner 1;

[0080] S800: Filling the foaming mold with a foaming agent to form a foaming layer;

[0081] S900: After the foaming layer is formed, the foaming mold is taken out.

[0082] The method comprises the following steps: connecting the sealing plate 2 and the wall of the refrigerator inner tank 1 to each other; setting the first sealing tape 4 at the connection between the sealing plate 2 and the wall of the refrigerator inner tank 1 so that the gap between the sealing plate 2 and the wall of the refrigerator inner tank 1 is closed; evenly laying the evaporator tube 3 on the sealing plate 2; covering the evaporator tube 3 with the second sealing tape 5 so that the gap between the evaporator tube 3 and the sealing plate 2 is closed; placing the foaming mold on the wall of the refrigerator inner tank 1; filling the foaming agent into the foaming mold to form a foaming layer, and taking out the foaming mold after the foaming layer is formed, so as to solve the problem that the direct cooling refrigerator inner tank 1 is deformed and damaged due to the influence of temperature during the foaming process.

[0083] In some embodiments, before the sealing plate 2 is connected to the wall of the refrigerator liner 1, Figure 7 As shown, the assembly method further includes:

[0084] S100: Check whether the sizes of the foaming mold, the evaporator tube 3, the sealing plate 2, the first sealing tape 4 and the second sealing tape 5 meet the specified sizes:

[0085] S101: If any one or more sizes of the foaming mold, the evaporator tube 3, the sealing plate 2, the first sealing tape 4 and the second sealing tape 5 do not meet the specified size, replace the foaming mold, the evaporator tube 3, the sealing plate 2, the first sealing tape 4 that do not meet the specified size;

[0086] S200: cleaning the wall of the refrigerator inner tank 1 so that there is no residual glue and granular impurities on the surface of the wall of the refrigerator inner tank 1.

[0087] The foaming mold meets the specified size, which can make the foaming layer and the refrigerator liner 1 fit more closely, thereby reducing the temperature loss. The evaporator tube 3 meets the specified size, which not only meets the food refrigeration requirements in the refrigerator liner 1, but also allows the various parts of the wall of the refrigerator liner 1 to exchange heat evenly with the evaporator tube 3. The sealing plate 2 meets the specified size, which can not only meet the ability to resist deformation during the foaming process, but also save materials, and at the same time protect the refrigerator liner 1 and increase the service life of the refrigerator. The first sealing tape 4 and the second sealing tape 5 meet the specified size, which can not only meet the function of sealing the gap between the evaporator tube 3 and the sealing plate 2, but also isolate the evaporator tube 3 and the foaming layer. Cleaning the wall of the refrigerator liner 1 can make the connection between the sealing plate 2 and the wall of the refrigerator liner 1 tighter.

[0088] In some embodiments, the foaming mold is placed on the wall of the refrigerator liner 1, such as Figure 8 As shown, the assembly method further includes:

[0089] S601: Compress the first sealing tape 4 and the second sealing tape 5;

[0090] S602: Check whether the first sealing belt 4 and the second sealing belt 5 are installed tightly:

[0091] S603: If the installation is not tight, repeat tightening the first sealing tape 4 and the second sealing tape 5.

[0092] The above method can further reduce the problem that the first sealing tape 4 and the second sealing tape 5 are not installed tightly, resulting in the foaming agent contacting the evaporator and the inner tank when the foaming agent is filled, causing the refrigerator inner tank 1 to be deformed and damaged by the temperature during the foaming process.

[0093] It can be seen from the above technical scheme that this embodiment provides a direct cooling refrigerator liner assembly and an assembly method, wherein the direct cooling refrigerator liner assembly includes: a refrigerator liner 1, an evaporator tube 3, a foaming layer, a sealing plate 2, a first sealing tape 4 and a second sealing tape 5; wherein the refrigerator liner 1 is a rectangular cavity structure, the sealing plate 2, the evaporator tube 3 and the foaming layer are sequentially arranged on the liner wall of the refrigerator liner 1, and the edge of the sealing plate 2 is connected to the liner wall of the refrigerator liner 1 through the first sealing tape 4; the second sealing tape 5 is arranged between the evaporator tube 3 and the foaming layer, and is used to isolate the evaporator tube 3 and the foaming layer. The sealing plate 2 and the wall of the refrigerator inner tank 1 are connected to each other; the first sealing tape 4 is arranged at the connection between the sealing plate 2 and the wall of the refrigerator inner tank 1, so that the gap between the sealing plate 2 and the wall of the refrigerator inner tank 1 is closed; the evaporator tube 3 is evenly laid on the sealing plate 2; the second sealing tape 5 is covered on the evaporator tube 3, so that the gap between the evaporator tube 3 and the sealing plate 2 is closed; and the foaming agent is filled to form the foaming layer to solve the problem that the direct cooling refrigerator inner tank 1 is deformed and damaged due to the temperature during the foaming process.

[0094] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the general concept of this application and do not constitute a limitation on the protection scope of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without creative work belong to the protection scope of this application.

Claims

1. A direct cooling refrigerator liner assembly, characterized in that: include: A refrigerator liner (1), an evaporator tube (3), a foaming layer, a sealing plate (2), a first sealing tape (4) and a second sealing tape (5); wherein the refrigerator liner (1) is a rectangular cavity structure, the sealing plate (2), the evaporator tube (3) and the foaming layer are sequentially arranged on the liner wall of the refrigerator liner (1), and the edge of the sealing plate (2) is connected to the liner wall of the refrigerator liner (1) through the first sealing tape (4); the second sealing tape (5) is arranged between the evaporator tube (3) and the foaming layer, and is used to isolate the evaporator tube (3) and the foaming layer; The refrigerator liner (1) is provided with a tube groove (11), the tube groove (11) is evenly embedded in the wall of the refrigerator liner (1) in a comb shape, and the inlet and outlet of the tube groove (11) are located on the same side of the refrigerator liner (1); the diameter of the tube groove (11) is greater than the diameter of the evaporator tube (3); The sealing plate (2) is provided with a sealing groove (21), the outer shape of the sealing groove (21) is the same as the inner shape of the tube groove (11), and the evaporator tube (3) is clamped with the sealing groove (21); The evaporator tube (3) is a trapezoidal evaporation tube (31), and the side of the trapezoidal evaporation tube (31) close to the refrigerator inner tank (1) is a large contact surface; the tube groove (11) is a trapezoidal tube groove (12); wherein the trapezoidal tube groove (12) comprises a trapezoidal buckle (121) and a trapezoidal inner groove (122); the trapezoidal inner groove (122) is used to place the sealing groove (21) and the trapezoidal evaporation tube (31), and the trapezoidal buckle (121) is used to clamp the trapezoidal evaporation tube (31).

2. The direct cooling refrigerator liner assembly according to claim 1, characterized in that: The sealing plate (2) is an aluminum plate with a thickness of 0.5-0.6 mm.

3. The direct cooling refrigerator liner assembly according to claim 1, characterized in that: The first sealing tape (4) and the second sealing tape (5) are aluminum foil tapes with a width of 60-70 mm.

4. The direct cooling refrigerator liner assembly according to claim 1, characterized in that: The pore diameter of the cross section of the evaporator tube (3) is 5-7 mm, and the center line spacing of the evaporator tube (3) is 50-60 mm.

5. The direct cooling refrigerator liner assembly according to claim 1, characterized in that: The foaming layer is a polyurethane foaming layer formed by the reaction of polyisocyanate and combined polyether in a ratio of 1:

1.

6. A method for assembling a direct cooling refrigerator liner assembly, characterized in that: Applicable to the direct cooling refrigerator liner assembly according to any one of claims 1 to 5, the assembly method comprising: Connecting the sealing plate (2) and the wall of the refrigerator inner tank (1) to each other; A first sealing tape (4) is arranged at the connection between the sealing plate (2) and the wall of the refrigerator inner tank (1), so that the gap between the sealing plate (2) and the wall of the refrigerator inner tank (1) is sealed; Evenly laying evaporator tubes (3) on the sealing plate (2); Covering the evaporator tube (3) with a second sealing tape (5) so that the gap between the evaporator tube (3) and the sealing plate (2) is sealed; Placing a foaming mold on the wall of the refrigerator liner (1); A foaming agent is filled into the foaming mold to form a foaming layer, and after the foaming layer is formed, the foaming mold is taken out.

7. The method for assembling a direct cooling refrigerator liner assembly according to claim 6, characterized in that: Before the sealing plate (2) and the wall of the refrigerator inner container (1) are connected to each other, the assembly method further comprises: Check whether the dimensions of the foaming mold, the evaporator tube (3), the sealing plate (2), the first sealing tape (4) and the second sealing tape (5) meet the specified dimensions: If any one or more of the sizes of the foaming mold, the evaporator tube (3), the sealing plate (2), the first sealing tape (4) and the second sealing tape (5) do not meet the specified size, replace the foaming mold, the evaporator tube (3), the sealing plate (2), the first sealing tape (4) and the second sealing tape (5) that do not meet the specified size; The wall of the refrigerator inner container (1) is cleaned so that there is no residual glue or granular impurities on the surface of the wall of the refrigerator inner container (1).

8. The method for assembling a direct cooling refrigerator liner assembly according to claim 6, characterized in that: Before placing the foaming mold on the wall of the refrigerator liner (1), the assembly method further comprises: Compressing the first sealing tape (4) and the second sealing tape (5); Check whether the first sealing belt (4) and the second sealing belt (5) are installed tightly: If the installation is not tight, repeat the compression of the first sealing tape (4) and the second sealing tape (5).

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