Refrigerator and method for optimizing foaming process of refrigerator body

Abstract

The embodiment of the invention belongs to the technical field of refrigeration, and provides a refrigerator and a method for optimizing the foaming process of a refrigerator body of the refrigerator, the refrigerator comprises the refrigerator body and an inner container, the inner container comprises a first inner container body and a second inner container body, and the first inner container body is located above the second inner container body; a foaming cavity is defined by the inner container and the box shell. The foaming cavity comprises a first foaming cavity and a second foaming cavity; the first foaming cavity is located behind the first inner container and the second inner container. The second foaming cavity is located between the first inner container and the second inner container, a first opening is formed in the rear end of the second foaming cavity, and the second foaming cavity communicates with the first foaming cavity through the first opening; the flow guide piece is arranged in the box shell and at least partially located in the first foaming cavity; the flow guide part partially shields the first opening; the flow guide part independently forms a flow guide channel, or the flow guide part and the box body form a flow guide channel, so that the foaming material is guided to the top of the first foaming cavity, the filling speed of the front side of the top of the foaming cavity is increased, and a cavitation area is prevented from appearing on the front side of the top of the foaming cavity.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of refrigeration technology, and in particular to a refrigerator and a method for optimizing the foaming process of a refrigerator cabinet. Background Art

[0002] The quality of the refrigerator cabinet's foam layer directly determines its fundamental performance. As refrigerators move toward higher volumes and thinner foam layers, foam quality issues are becoming increasingly prominent, with localized cavitation areas appearing.

[0003] In the related art, when a cavitation area appears locally, it can be alleviated by increasing the amount of bubble injection, or by puncturing exhaust holes in the cavitation area.

[0004] However, increasing the amount of foam injected leads to increased costs, and punching vent holes in the vacant area affects the foaming efficiency of the refrigerator. It is also easy to miss or mistakenly punch vent holes, which makes the quality of the foam layer unguaranteed and leads to a high foam layer defect rate. Therefore, this application proposes a refrigerator and a method for optimizing the foaming process of the refrigerator cabinet. Summary of the Invention

[0005] The embodiments of the present application provide a refrigerator and a method for optimizing the foaming process of a refrigerator body, which can solve the technical problem of a high defective rate of the foaming layer.

[0006] In a first aspect, an embodiment of the present application provides a refrigerator, comprising:

[0007] Box, including:

[0008] A box shell, wherein the box shell is formed with an injection port for injecting the foaming material;

[0009] An inner liner is provided in the box shell, the inner liner includes a first inner liner and a second inner liner, and the first inner liner is located above the second inner liner;

[0010] The inner container and the box shell form a foaming cavity; the foaming cavity includes a first foaming cavity and a second foaming cavity;

[0011] The first foaming cavity is located above the injection port; the first foaming cavity is located behind the first inner liner and the second inner liner;

[0012] The second foaming cavity is located between the first inner container and the second inner container, a first opening is formed at the rear end of the second foaming cavity, and the second foaming cavity is connected to the first foaming cavity through the first opening;

[0013] A flow guide member is arranged in the box shell and is at least partially located in the first foaming cavity; the flow guide member partially blocks the first opening; the flow guide member is used to form a flow guide channel, and the flow guide member forms the flow guide channel alone, or the flow guide member and the box body form the flow guide channel together to guide the foaming material to the top of the first foaming cavity.

[0014] The provision of a flow guide and a flow guide channel can block the first opening, reduce the speed at which the foaming material flows into the second foaming cavity, guide the foaming material to the top of the first foaming cavity, and then flow to the front side of the top of the foaming cavity, thereby accelerating the filling speed of the front side of the top of the foaming cavity, avoiding the appearance of a cavitation area on the front side of the top of the foaming cavity, improving the uniformity of the density of the foaming layer, avoiding an excessively high defective rate of the foaming layer of the box body, reducing the use cost of the foaming material, and improving the thermal insulation performance of the refrigerator.

[0015] According to one embodiment of the present application, the box shell includes a back plate for enclosing the guide channel, and the back plate is located at the rear end of the box shell;

[0016] The flow guide member is a flow guide bracket, and the flow guide bracket includes:

[0017] a shielding plate, wherein a top end of the shielding plate is connected to the first liner, a bottom end of the shielding plate is connected to the second liner, and the shielding plate partially shields the first opening;

[0018] A guide plate, the rear end of which contacts the back plate, the guide plate is connected to the shielding plate, there are two guide plates, and the two guide plates are arranged opposite to each other and at intervals in the width direction of the box.

[0019] The guide member is set as a guide bracket, which includes a baffle and a guide plate. The box shell includes a back plate for enclosing a guide channel. The rear end of the guide plate is in contact with the back plate, which can fully utilize the back plate to enclose the guide channel. Without changing the overall front and rear dimensions of the box, the size of the guide channel in the front and rear directions of the box is set as large as possible to enhance the guide effect.

[0020] According to one embodiment of the present application, the guide channel includes a first guide channel located at the bottom end of the guide channel;

[0021] The guide plate comprises:

[0022] The first guide section is located at the bottom end of the guide plate, the front end of the first guide section is connected to the shielding plate, and the two first guide sections, the shielding plate and the back plate form the first guide channel.

[0023] A first guide channel is provided to guide the foaming material below the guide bracket to the top of the first opening, thereby reducing the foaming material from flowing into the second foaming cavity, increasing the filling speed of the foaming material at the top of the foaming cavity, and improving the quality of the top of the foaming layer.

[0024] According to one embodiment of the present application, the guide channel further includes a second guide channel connected to the top of the first guide channel;

[0025] The guide plate comprises:

[0026] The second guide section is connected above the first guide section. The second guide section is located behind the first inner liner. The front end of the second guide section is in contact with the first inner liner. The two second guide sections, the back plate and the first inner liner form the second guide channel.

[0027] The guide plate includes a second guide section, which can form a second guide channel and further improve the effect of the guide member in guiding the foaming material to the top of the first foaming cavity.

[0028] According to one embodiment of the present application, the distance between the two guide plates in the width direction of the box body is a first distance L1, L1 ≥ 180 mm, so that the guide channel is wide enough to facilitate the passage of the foaming material.

[0029] According to one embodiment of the present application, the flow guide is a flow guide tube, and the flow guide tube includes:

[0030] an extension tube, located at the top end of the guide tube, and the top end of the extension tube is located behind the first inner container;

[0031] A support frame is connected to the bottom end of the extension tube, and the support frame supports the bottom end of the extension tube so that the foaming material enters the extension tube and prevents the entrance of the guide channel from collapsing.

[0032] In a second aspect, an embodiment of the present application provides a method for optimizing the foaming process of a refrigerator cabinet, comprising the following steps:

[0033] Construct a three-dimensional model of the foaming layer according to the foaming cavity of the refrigerator body;

[0034] Build a foaming simulation model, perform foaming simulation calculations, and obtain foaming simulation results;

[0035] Determining whether the foaming simulation result is qualified;

[0036] When the foaming simulation result is unqualified, determining the speed type of the foaming material filling speed at the top of the foaming layer according to the foaming simulation result; wherein the speed type includes a first type and a second type, and the foaming material filling speed corresponding to the first type is greater than the foaming material filling speed corresponding to the second type;

[0037] When the filling speed of the foaming material at the top of the foaming layer belongs to the first type, adding a blocking block in the foaming cavity to block the foaming material from flowing toward the top of the foaming cavity;

[0038] When the filling speed of the foaming material at the top of the foaming layer belongs to the second type, a guide piece is added in the foaming cavity (14) to guide the foaming material toward the top of the foaming cavity.

[0039] By judging whether the foaming simulation results are qualified, unqualified foaming processes can be identified for optimization; when the foaming material at the top of the foaming layer is filled at a faster speed, a cavitation area is easily generated at the bottom of the foaming layer. A blocking block is set in the foaming cavity to block the foaming material flowing to the top of the foaming layer, which can reduce the cavitation area at the bottom of the foaming layer. When the foaming material at the top of the foaming layer is filled at a slower speed, a cavitation area is easily generated at the top of the foaming layer. A guide piece is set in the foaming cavity to guide the foaming material to the top of the foaming layer, which can reduce the cavitation area at the top of the foaming layer. By adding blocking blocks and guide pieces, the cavitation area in the foaming layer can be reduced, the uniformity of the density of the foaming layer can be improved, the defective rate of the box foaming layer can be avoided to be too high, and the cost of using the foaming material can be reduced. Problems in the foaming process can be identified through simulation, the determination efficiency of the foaming process can be improved, the cost can be reduced, and the thermal insulation performance of the refrigerator can be improved.

[0040] According to one embodiment of the present application, after adding the blocking block into the foaming cavity, the following steps are further included:

[0041] Update the three-dimensional model of the foaming layer and perform simulation calculations to obtain foaming simulation results;

[0042] Determining whether the foaming simulation result is qualified;

[0043] When the foaming simulation result is unqualified, the size and / or position of the blocking block is adjusted according to the filling speed of the foaming material on the top of the foaming layer until the foaming simulation result is qualified.

[0044] By adjusting the size and position of the material stopper, the foaming cavity can be optimized, the cavitation area in the foaming layer after foaming can be reduced, the uniformity of the density of the foaming layer can be improved, the defective rate of the box foaming layer can be avoided to be too high, and the cost of using the foaming material can be reduced.

[0045] According to one embodiment of the present application, after adding the flow guide member into the foaming cavity, the following steps are further included:

[0046] Update the three-dimensional model of the foaming layer and perform simulation calculations to obtain foaming simulation results;

[0047] Determining whether the foaming simulation result is qualified;

[0048] When the foaming simulation result is unqualified, the size and / or position of the guide channel is adjusted according to the filling speed of the foaming material on the top of the foaming layer until the foaming simulation result is qualified, wherein the guide member forms the guide channel alone, or the guide member and the box body form the guide channel together.

[0049] By adjusting the size and position of the guide channel, the foaming cavity can be optimized, the cavitation area in the foaming layer after foaming can be reduced, the uniformity of the density of the foaming layer can be improved, the defective rate of the box foaming layer can be avoided to be too high, and the cost of using the foaming material can be reduced.

[0050] According to one embodiment of the present application, it further includes:

[0051] During the construction of the foaming simulation model, a detector is provided at the front end of the top surface of the three-dimensional model of the foaming layer; during the foaming simulation, the detector detects the time when the foaming material flows to the front end of the top surface of the foaming layer, and the time when the foaming material flows to the front end of the top surface of the foaming layer is the filling time T;

[0052] The conditions for judging whether the foaming simulation result is qualified include at least a first condition. When the first condition is not met, the foaming simulation result is unqualified.

[0053] The first condition is specifically: the filling time T is greater than a first preset time T1 and less than a second preset time T2, and the second preset time T2 is greater than the first preset time T1.

[0054] The front end of the top face of the three-dimensional model of the foaming layer is the most difficult area to fill at the top of the foaming layer. Setting the detector at the front end of the top face of the foaming layer can improve the measurement accuracy of the filling speed of the foaming material at the top of the foaming layer. The filling time T is greater than the first preset time T1 and less than the second preset time T2 as one of the conditions for the qualified foaming simulation structure, which can make the top of the foaming layer better filled, the overall uniformity of the foaming layer good, and the quality of the foaming layer higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the implementation methods in the embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0056] Figure 1 This is a schematic diagram of a partial structure of a refrigerator according to an embodiment of the present application;

[0057] Figure 2 This is a rear view of a partial structure of a refrigerator according to an embodiment of the present application;

[0058] Figure 3A cross-sectional view of a partial structure of a refrigerator according to an embodiment of the present application;

[0059] Figure 4 A partial structural diagram of a refrigerator from another perspective according to an embodiment of the present application;

[0060] Figure 5 This is a rear view of another partial structure of a refrigerator according to an embodiment of the present application;

[0061] Figure 6 This is a schematic structural diagram of a flow guide bracket according to an embodiment of the present application;

[0062] Figure 7 A partial structural diagram of a refrigerator from another perspective according to an embodiment of the present application;

[0063] Figure 8 This is a schematic structural diagram of a flow guide tube according to an embodiment of the present application;

[0064] Figure 9 A partial structural diagram of a refrigerator from another perspective according to an embodiment of the present application;

[0065] Figure 10 This is a rear view of another partial structure of a refrigerator according to an embodiment of the present application;

[0066] Figure 11 This is a flow chart of a method for optimizing the foaming process of a refrigerator cabinet according to an embodiment of the present application;

[0067] Figure 12 Another flow chart of the method for optimizing the foaming process of a refrigerator cabinet according to one embodiment of the present application;

[0068] Figure 13 Another flow chart of the method for optimizing the foaming process of a refrigerator cabinet according to one embodiment of the present application;

[0069] Figure 14 Another flow chart of the method for optimizing the foaming process of a refrigerator cabinet according to one embodiment of the present application;

[0070] Figure 15 This is another flow chart of a method for optimizing the foaming process of a refrigerator cabinet according to an embodiment of the present application.

[0071] Description of reference numerals:

[0072] 1: box body; 11: refrigeration compartment;

[0073] 12: box shell; 121: compressor chamber; 122: compressor chamber top plate; 1221: injection port; 123: back plate;

[0074] 13: Inner liner; 131: First inner liner; 1311: Back panel of first inner liner; 13111: First protrusion; 132: Second inner liner;

[0075] 14: Foaming cavity; 141: First foaming cavity; 142: Second foaming cavity; 1421: First opening;

[0076] 3: flow guide;

[0077] 31: diversion channel; 311: first diversion channel; 312: second diversion channel;

[0078] 32: shielding plate; 321: flat plate segment; 322: arc segment;

[0079] 33: guide plate; 331: first guide section; 332: second guide section;

[0080] 35: extension tube;

[0081] 36: support frame; 361: first support plate; 362: second support plate; 363: connecting plate;

[0082] 4: Stop block. DETAILED DESCRIPTION

[0083] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0084] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0085] In addition, the terms "comprises" and "comprising" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0086] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0087] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0088] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0089] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0090] As described in the background art, in the related art, cavitation areas are prone to appear in the foaming layer of refrigerators. Among them, for boxes with thicker foam layers, cavitation areas are prone to appear in the lower part of the foaming layer, which may appear at the ribs at the lower part of the box. In the drawer push-pull test, the ribs are prone to break. For boxes with thinner foam layers, cavitation areas are prone to appear at the top of the foaming layer. When cavitation areas appear locally, it can be alleviated by increasing the amount of foam injection, or by puncturing vents in the cavitation areas. However, increasing the amount of foam injection will lead to increased costs, and puncturing vents in the cavitation areas will affect the foaming efficiency of the refrigerator, and it is easy to miss or mistakenly puncture the vents, making the quality of the foaming layer unguaranteed and resulting in a high defective rate of the foaming layer. Moreover, quality problems of the foaming layer can only be discovered through manual dissection after the foaming is completed, which is time-consuming and labor-intensive.

[0091] In response to the above technical problems, the present application proposes a refrigerator comprising a housing and a flow guide. The housing comprises a shell and an inner liner. An injection port for injecting foaming material is formed on the shell. The inner liner is arranged in the shell, and the inner liner comprises a first inner liner and a second inner liner, with the first inner liner being located above the second inner liner. The inner liner and the shell form a foaming chamber; the foaming chamber comprises a first foaming chamber and a second foaming chamber; the first foaming chamber is located above the injection port; the first foaming chamber is located behind the first and second inner liner, and the second foaming chamber is located between the first and second inner liner; a first opening is formed at the rear end of the second foaming chamber, and the second foaming chamber is connected to the first foaming chamber through the first opening. The flow guide is arranged in the shell and at least partially located in the first foaming chamber; the flow guide partially blocks the first opening; the flow guide is used to form a flow guide channel, and the flow guide forms the flow guide channel alone, or the flow guide and the housing form the flow guide channel together, so as to guide the foaming material to the top of the first foaming chamber. The provision of a flow guide and a flow guide channel can block the first opening, reduce the speed at which the foaming material flows into the second foaming cavity, guide the foaming material to the top of the first foaming cavity, and then flow to the front side of the top of the foaming cavity, thereby accelerating the filling speed of the front side of the top of the foaming cavity, avoiding the appearance of a cavitation area on the front side of the top of the foaming cavity, improving the uniformity of the density of the foaming layer, avoiding an excessively high defective rate of the foaming layer of the box body, reducing the use cost of the foaming material, and improving the thermal insulation performance of the refrigerator.

[0092] refer to Figure 1 The present invention provides a refrigerator. The refrigerator may include a housing 1. A refrigeration compartment 11 may be defined within the housing 1. There may be multiple refrigeration compartments 11. The refrigeration compartments 11 may be a refrigerator or a freezer.

[0093] The refrigerator may include a door. The door may be rotatably connected to the refrigerator body 1 so as to open or close the refrigeration compartment 11. The door and the refrigerator body 1 may be hinged so as to rotate relative to the refrigerator body 1. The door may be a refrigerator door closing the refrigerator compartment or a freezer door closing the freezer compartment.

[0094] The height of the box 1 can be measured from the bottom to the top of the box 1. The box 1 has a width, and the width of the box 1 can be measured from one side to the other side of the box 1. The box 1 has a front-to-back direction, and the front-to-back direction of the box 1 can be measured from the front to the back of the box 1. Of the height, width, and front-to-back directions of the box 1, any two of them are perpendicular.

[0095] The door can be connected to the front end of the box body 1. The refrigerator compartment and the freezer compartment can be arranged in sequence in the height direction of the box body 1, and the freezer compartment can be located below the refrigerator compartment. The refrigerator compartment and the freezer compartment can also be arranged in sequence in the width direction of the box body 1.

[0096] The refrigerator may include a refrigeration system. The refrigeration system may include a compressor, a condenser, a throttling device, and an evaporator, which are connected in a circular manner. When the refrigeration system is in operation, the compressor compresses the refrigerant vapor to generate high-temperature, high-pressure refrigerant vapor, which is then transported to the condenser. The condenser liquefies the high-temperature, high-pressure refrigerant vapor to generate high-temperature, low-pressure refrigerant liquid, which is then transported to the throttling device. The throttling device reduces the pressure of the refrigerant liquid, converting the high-pressure, low-temperature refrigerant liquid to a low-pressure, low-temperature refrigerant liquid, which is then transported to the evaporator. The evaporator receives the low-pressure, low-temperature refrigerant liquid and causes it to boil under isobaric conditions, absorbing heat and vaporizing it to form refrigerant vapor, thereby lowering the temperature within the refrigeration compartment 11.

[0097] In some embodiments, reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The housing 1 includes a housing shell 12. A material injection port 1221 for injecting foaming material is formed on the housing shell 12. A compressor cavity 121 for accommodating a compressor is formed in the housing shell 12. The housing shell 12 includes a compressor cavity top plate 122 for enclosing the compressor cavity 121. The compressor cavity top plate 122 is located at the top of the compressor cavity 121. A material injection port 1221 is formed on the compressor cavity top plate 122. The material injection port 1221 is located in the middle of the compressor cavity top plate 122 in the width direction of the housing 1.

[0098] refer to Figure 1 and Figure 2 The box body 1 includes an inner liner 13. The inner liner 13 is arranged in the box shell 12. There can be one inner liner 13. There can be two inner liner 13. When there are two inner liner 13, the two inner liner 13 are respectively a first inner liner 131 and a second inner liner 132. The inner liner 13 includes a first inner liner 131. The inner liner 13 includes a second inner liner 132. The first inner liner 131 is located above the second inner liner 132. The first inner liner 131 and the second inner liner 132 can be arranged at an interval.

[0099] refer to Figure 2 and Figure 3 The inner liner 13 and the box shell 12 form a foaming cavity 14. The foaming cavity 14 includes a first foaming cavity 141. The first foaming cavity 141 is located above the injection port 1221. The first foaming cavity 141 is connected to the injection port 1221, so that the injection port 1221 is used to inject foaming material into the first foaming cavity 141. The first foaming cavity 141 is located behind the first inner liner 131 and the second inner liner 132. Specifically, the top of the first foaming cavity 141 is located behind the first inner liner 131, and the bottom of the first foaming cavity 141 is located behind the second inner liner 132.

[0100] The foaming chamber 14 includes a second foaming chamber 142 located between the first inner liner 131 and the second inner liner 132 . A first opening 1421 is formed at the rear end of the second foaming chamber 142 . The second foaming chamber 142 communicates with the first foaming chamber 141 through the first opening 1421 .

[0101] refer to Figure 2 、 Figure 3 and Figure 4 The refrigerator includes a flow guide 3. The flow guide 3 is disposed within the housing 12, and at least partially within the first foaming cavity 141. The first flow guide 3 partially obscures the first opening 1421. The flow guide 3 is configured to form a flow guide channel 31. The flow guide 3 may form the flow guide channel 31 alone, or together with the housing 1, to guide the foaming material toward the top of the first foaming cavity 141.

[0102] The guide member 3 and the guide channel 31 are provided to block the first opening 1421, reduce the speed at which the foaming material flows into the second foaming cavity 142, and guide the foaming material to the top of the first foaming cavity 141, and then flow to the front side of the top of the foaming cavity 14, thereby accelerating the filling speed of the front side of the top of the foaming cavity 14, avoiding the occurrence of a cavitation area on the front side of the top of the foaming cavity 14, improving the uniformity of the density of the foaming layer, avoiding an excessively high defective rate of the foaming layer of the box body, reducing the use cost of the foaming material, and improving the thermal insulation performance of the refrigerator.

[0103] In some embodiments, reference Figure 2 、 Figure 3 and Figure 4 The guide channel 31 is arranged opposite to the injection port 1221, so that the foaming material flowing in from the injection port 1221 can flow conveniently into the guide channel 31, thereby improving the guide effect.

[0104] In some embodiments, reference Figure 4 、 Figure 5 and Figure 6 The box shell 12 includes a back plate 123. The back plate 123 is used to enclose the guide channel 31. The back plate 123 is located at the rear end of the box shell 12.

[0105] The guide member 3 is a guide bracket. The guide bracket includes a shielding plate 32. The top end of the shielding plate 32 is connected to the first inner liner 131. The bottom end of the shielding plate 32 is connected to the second inner liner 132. The shielding plate 32 partially blocks the first opening 1421.

[0106] The guide bracket includes a guide plate 33. The rear end of the guide plate 33 contacts the back plate 123. The guide plate 33 is connected to the shielding plate 32. There are two guide plates 33. The two guide plates 33 are opposite each other and spaced apart in the width direction of the box body 1.

[0107] The guide member is set as a guide bracket, which includes a baffle and a guide plate. The box shell includes a back plate for enclosing a guide channel. The rear end of the guide plate is in contact with the back plate, which can fully utilize the back plate to enclose the guide channel. Without changing the overall front and rear dimensions of the box, the size of the guide channel in the front and rear directions of the box is set as large as possible to enhance the guide effect.

[0108] In some embodiments, reference Figure 4 、 Figure 5 and Figure 6 The shielding plate 32 includes a flat section 321. The flat section 321 is located at the bottom end of the shielding plate 32. The bottom of the flat section 321 is located behind the second inner liner 132. The shielding plate 32 includes an arcuate section 322. The arcuate section 322 fits against the bottom rear portion of the first inner liner 131, thereby effectively shielding the first opening 1421.

[0109] In some embodiments, reference Figure 4 、 Figure 5 and Figure 6 The guide channel 31 includes a first guide channel 311 located at the bottom end of the guide channel 31. The guide plate 33 includes a first guide section 331. The first guide section 331 is located at the bottom end of the guide plate 33. The front end of the first guide section 331 is connected to the baffle plate 32. The two first guide sections 331, the baffle plate 32 and the back plate 123 form a second guide channel 312. The first guide channel is provided to guide the foaming material below the guide bracket to the top of the first opening, reduce the foaming material flowing into the second foaming cavity, increase the filling speed of the foaming material at the top of the foaming cavity, and improve the quality of the top of the foaming layer.

[0110] In some embodiments, the guide channel 31 includes a second guide channel 312 connected to the top of the first guide channel 311. The guide plate 33 includes a second guide section 332. The second guide section 332 is connected above the first guide section 331. The second guide section 332 is located behind the first inner liner 131. The front end of the second guide section 332 is in contact with the first inner liner 131, and the two second guide sections 332, the back plate 123 and the first inner liner 131 form a second guide channel 312 to guide the foaming material to the top of the first foaming cavity 141. The guide plate 33 is provided to include the second guide section 332, which can form the second guide channel 312, and can further improve the effect of the guide member 3 in guiding the foaming material to the top of the first foaming cavity 141.

[0111] In some embodiments, reference Figure 4 、 Figure 5 and Figure 6 The distance between the two guide plates 33 in the width direction of the box body 1 is a first distance L1, L1 ≥ 180 mm, so that the guide channel 31 is wide enough to facilitate the passage of the foaming material.

[0112] In some embodiments, reference Figure 4 、 Figure 5 and Figure 6 The first inner liner 131 includes a first inner liner rear plate 1311 located at the rear end of the first inner liner 131 , and a first protrusion 13111 located at the bottom of the first inner liner rear plate 1311 is formed on the rear side of the first inner liner rear plate 1311 .

[0113] In the height direction of the box body 1, the top of the guide plate 33 is higher than the bottom end of the first protrusion 13111, which can guide the foaming material to the top of the bottom end of the first protrusion 13111, and prevent the foaming material from flowing along the contour of the first protrusion 13111 to both sides of the width direction of the box body 1 under the obstruction of the first protrusion 13111.

[0114] In some embodiments, reference Figure 7 、 Figure 8 and Figure 9 The flow guide member 3 may be a flow guide tube. The flow guide tube includes an extension tube 35. The extension tube 35 is located at the top of the flow guide tube. The top of the extension tube 35 is located behind the first inner liner 131, so that the flow guide tube guides the foaming material to the rear side of the first inner liner 131. The extension tube 35 may be a soft tube. The extension tube 35 may be flat.

[0115] The guide tube includes a support frame 36. The support frame 36 is connected to the bottom end of the extension tube 35. The support frame 36 supports the extension tube 35 so that the foaming material enters the extension tube 35 and prevents the entrance of the guide channel from collapsing.

[0116] The guide tube alone forms the guide channel 31, or the guide tube and the back plate 123 together form the guide channel 31. The bottom end of the support frame 36 can be connected to the compressor chamber top plate 122, and the support frame 36 is located at the injection port 1221, and the guide channel 31 is connected to the injection port 1221. Alternatively, the bottom end of the support frame can be located above the compressor chamber top plate 122.

[0117] In some embodiments, reference Figure 7 、 Figure 8 and Figure 9 The support frame 36 may further include a first support plate 361 and a second support plate 362. The first support plate 361 and the second support plate 362 are arranged opposite each other and spaced apart in the width direction of the box body 1. The support frame 36 includes a connecting plate 363. The two ends of the connecting plate 363 are respectively connected to the first support plate 361 and the second support plate 362.

[0118] A second flow guiding channel 312 is formed in the extension tube 35. The connecting plate 363, the first support plate 361, the second support plate 362 and the back plate 123 form the first flow guiding channel 311. The flow guiding channel 31 includes the first flow guiding channel 311 and the second flow guiding channel 312.

[0119] The distance between the first support plate 361 and the second support plate 362 in the width direction of the box body 1 is a second distance L2, where L2 is ≥ 180 mm.

[0120] In the height direction of the box body 1, the top of the guide channel 31 is higher than the bottom end of the first protrusion 13111, which can guide the foaming material to the top of the bottom end of the first protrusion 13111, and prevent the foaming material from flowing along the contour of the first protrusion 13111 to both sides of the width direction of the box body 1 under the obstruction of the first protrusion 13111.

[0121] In some embodiments, reference Figure 7 、 Figure 8 and Figure 9 The support frame 36 may be a tube. A first flow guide channel 311 is formed in the support frame 36. The support frame 36 may be connected to the compressor chamber top plate 122. The support frame 36 may have the function of preventing overflow.

[0122] In some embodiments, reference Figure 10 The refrigerator includes a material stopper 4. The material stopper 4 is located within the foaming cavity 14 and behind the inner container 13 to prevent the foaming material from flowing toward the top of the foaming cavity 14. The front end of the material stopper 4 contacts the inner container 13, and the rear end of the material stopper 4 contacts the back plate 123. The material stopper 4 is arranged opposite to the injection port 1221.

[0123] Among them, when the refrigerator has a blocking block 4, the inner liner 13 has one. When the inner liner 13 has one, the foaming material flows to the foaming cavity 14 too quickly during foaming, causing the top of the foaming cavity 14 to fill too quickly, and a cavitation area is easily formed at the bottom of the foaming cavity 14.

[0124] The foaming chamber 14 includes a first foaming chamber 141 , which is located behind the inner container 13 , and the blocking block 4 is located in the first foaming chamber 141 . The first foaming chamber 141 is located above the injection port 1221 .

[0125] The dimension of the blocking block 4 in the width direction of the box body 1 is a first width K1, and the dimension of the first foaming cavity 141 in the width direction of the box body 1 is a second width K2, K1 / K2<0.5, to prevent the blocking block 4 from blocking too much foaming material.

[0126] In some embodiments, reference Figure 11 , a method for optimizing the foaming process of refrigerator cabinet is proposed, comprising the following steps:

[0127] S1: Constructing a three-dimensional model of the foaming layer according to the foaming cavity 14 of the refrigerator body 1;

[0128] S2: Build a foaming simulation model, perform foaming simulation calculations, and obtain foaming simulation results;

[0129] S3: Determine whether the foaming simulation result is qualified;

[0130] S4: When the foaming simulation result is unqualified, determining the speed type of the foaming material filling speed at the top of the foaming layer according to the foaming simulation result; wherein the speed type includes a first type and a second type, and the foaming material filling speed corresponding to the first type is greater than the foaming material filling speed corresponding to the second type;

[0131] S5: When the filling speed of the foaming material at the top of the foaming layer belongs to the first type, a blocking block 4 is added in the foaming cavity 14 to prevent the foaming material from flowing to the top of the foaming cavity 14; when the filling speed of the foaming material at the top of the foaming layer belongs to the second type, a guide member 3 is added in the foaming cavity 14 to guide the foaming material to the top of the foaming cavity 14.

[0132] Among them, when the foaming simulation results are qualified, the refrigerator body foaming process does not need to be optimized.

[0133] By judging whether the foaming simulation results are qualified, unqualified foaming processes can be identified for optimization; when the foaming material at the top of the foaming layer is filled at a faster speed, a cavitation area is easily generated at the bottom of the foaming layer. A blocking block is set in the foaming cavity to block the foaming material flowing to the top of the foaming layer, which can reduce the cavitation area at the bottom of the foaming layer. When the foaming material at the top of the foaming layer is filled at a slower speed, a cavitation area is easily generated at the top of the foaming layer. A guide piece is set in the foaming cavity to guide the foaming material to the top of the foaming layer, which can reduce the cavitation area at the top of the foaming layer. By adding blocking blocks and guide pieces, the cavitation area in the foaming layer can be reduced, the uniformity of the density of the foaming layer can be improved, the defective rate of the box foaming layer can be avoided to be too high, and the cost of using the foaming material can be reduced. Problems in the foaming process can be identified through simulation, the determination efficiency of the foaming process can be improved, the cost can be reduced, and the thermal insulation performance of the refrigerator can be improved.

[0134] In some embodiments, step S1 specifically includes the following steps:

[0135] S11: Simplifying the three-dimensional model of the refrigerator body 1;

[0136] S12: extracting the foaming cavity from the three-dimensional model of the refrigerator body 1 and forming a three-dimensional model of the foaming layer.

[0137] In some embodiments, the three-dimensional model of the foaming layer is imported into simulation software, and then a foaming simulation model is constructed within the simulation software. During the construction of the foaming layer simulation model, process parameters and foam material parameters are set. Process parameters include gun tip diameter, gun tip flow rate, foam injection volume, mold temperature, and vent holes. Foam material parameters include the foam material ratio, physical blowing agent type, molecular weight, reaction kinetics parameters, and viscosity parameters.

[0138] After setting the process and foam material parameters, meshing was performed, generating a tetrahedral mesh and performing local refinement. The base mesh size was 5 mm, and the refinement mesh size was 3 mm. After the foaming layer simulation model was built, foaming simulation calculations were performed.

[0139] In some embodiments, the method for optimizing the refrigerator cabinet foaming process further includes:

[0140] During the foaming simulation model construction process, a detector is placed at the top front end of the three-dimensional model of the foaming layer. During the foaming simulation, the detector detects the time it takes for the foaming material to flow to the top front end of the foaming layer. The time it takes for the foaming material to flow to the top front end of the foaming layer is the filling time T.

[0141] The conditions for judging whether the foaming simulation result is qualified include at least the first condition. When the first condition is not met, the foaming simulation result is unqualified. The first condition is specifically:

[0142] The filling time T is greater than the first preset time T1 and less than the second preset time T2. The second preset time T2 is greater than the first preset time T1.

[0143] The front end of the top face of the three-dimensional model of the foaming layer is the most difficult area to fill at the top of the foaming layer. Setting the detector at the front end of the top face of the foaming layer can improve the measurement accuracy of the filling speed of the foaming material at the top of the foaming layer. The filling time T is greater than the first preset time T1 and less than the second preset time T2 as one of the conditions for the qualified foaming simulation structure, which can make the top of the foaming layer better filled, the overall uniformity of the foaming layer good, and the quality of the foaming layer higher.

[0144] The detector is located at the midpoint of the front end of the top surface of the foaming layer, and the detector can be a virtual sensor. The point where the detector is located is the detection point.

[0145] During the foaming simulation, the time when the detector detects that the data at the detection point is not zero is the filling time T. The data detected by the detector may be the temperature of the detection point or the density of the detection point.

[0146] In some embodiments, the speed type of the foaming material filling speed at the top of the foaming layer is determined based on the filling time T;

[0147] When the filling time T is less than or equal to the first preset time T1, the filling speed of the foaming material on the top of the foaming layer belongs to the first type;

[0148] When the filling time T is greater than or equal to the second preset time T2, the filling speed of the foaming material on the top of the foaming layer belongs to the second type.

[0149] The larger the filling time T, the slower the filling, and the smaller the filling time, the faster the filling. Judging by the filling time, it is more convenient to judge the filling speed of the foaming material on the top of the foaming layer.

[0150] In some embodiments, the conditions for determining whether the foaming simulation result is qualified include at least a second condition. When the second condition is not met, the foaming simulation result is unqualified. The second condition is specifically: there is no cavitation area in the foaming layer.

[0151] Taking the absence of cavitation areas in the foaming layer as one of the conditions for the qualification of the foaming simulation structure can ensure that the entire foaming layer has no cavitation areas, so that the overall uniformity of the foaming layer is good and the quality of the foaming layer is higher.

[0152] The foaming simulation results include the air pressure modulus of the foaming layer. When the maximum air pressure modulus of the foaming layer exceeds the first air pressure modulus, a cavitation region exists in the foaming layer.

[0153] The air pressure modulus of the foaming layer is displayed by the air pressure cloud map. The area that does not exceed the first air pressure modulus is displayed as colorless, and the area that exceeds the first air pressure modulus is displayed as colored, which can clearly determine the position of the cavitation area.

[0154] In some embodiments, the speed type of the foaming material filling speed at the top of the foaming layer is determined based on the location of the cavitation area of the foaming layer;

[0155] When there is a cavitation area at the bottom of the foaming layer, the filling speed of the foaming material at the top of the foaming layer belongs to the first type;

[0156] When there is a cavitation area on the upper part of the foaming layer, the filling speed of the foaming material on the top of the foaming layer belongs to the second type.

[0157] When there is a cavitation area in the lower part of the foaming layer, it means that the lower part fills slowly and the upper part fills quickly. When there is a cavitation area in the upper part of the foaming layer, it means that the lower part fills quickly and the upper part is fully filled. Judging by the position of the cavitation area, it is more convenient to judge the filling speed of the foam material at the top of the foaming layer.

[0158] In some embodiments, the conditions for determining whether the foaming simulation result is qualified include at least a third condition. When the third condition is not met, the foaming simulation result is unqualified. The third condition is specifically:

[0159] Among the multiple points of the foamed layer, the difference in density values at any two points does not exceed a first preset difference.

[0160] Taking the density difference between any two points not exceeding the first preset difference as one of the conditions for the foaming simulation structure to be qualified can ensure that the overall density of the foaming layer is not much different, so that the overall uniformity of the foaming layer is good and the quality of the foaming layer is higher.

[0161] In some embodiments, the density value at at least one point on the top surface of the foaming layer is obtained, and the average density value of the top surface of the foaming layer is calculated; the density value at at least one point on the bottom surface of the foaming layer is obtained, and the average density value of the bottom surface of the foaming layer is calculated;

[0162] The speed type of the foaming material filling speed on the top of the foaming layer is determined according to the average density value of the top surface of the foaming layer and the average density value of the bottom surface of the foaming layer;

[0163] When the average density value of the top surface of the foaming layer is greater than the average density value of the bottom surface of the foaming layer, the filling speed of the foam material on the top surface of the foaming layer belongs to the first type;

[0164] When the average density value of the top surface of the foaming layer is less than the average density value of the bottom surface of the foaming layer, the filling speed of the foaming material on the top surface of the foaming layer belongs to the second type.

[0165] When the average density value of the top surface of the foaming layer is large, it means that the top of the foaming layer fills quickly. When the average density value of the top surface of the foaming layer is small, it means that the top of the foaming layer fills slowly. Judging by the size of the average density value of the top surface of the foaming layer and the average density value of the bottom surface of the foaming layer, it is more convenient to judge the filling speed of the foam material on the top of the foaming layer.

[0166] In some embodiments, when judging whether the foaming simulation result is qualified, when the first condition, the second condition and the third condition are all met, the foaming simulation result is qualified; when any one of the first condition, the second condition and the third condition is not met, the foaming simulation result is considered unqualified.

[0167] In some embodiments, when judging the speed type of the foaming material filling speed at the top of the foaming layer, it can be judged based on any one of the filling time T, the location of the cavitation area of the foaming layer, the average density value of the top surface of the foaming layer, and the average density value of the bottom surface of the foaming layer.

[0168] In some embodiments, when the stopper block 4 is added to the foaming cavity 14, the front end of the stopper block 4 contacts the inner container 13, and the rear end of the stopper block 4 contacts the back plate 123. The stopper block is arranged opposite to the injection port.

[0169] In some embodiments, reference Figure 12 After adding a blocking block 4 in the foaming cavity 14 to block the foaming material from flowing toward the top of the foaming cavity 14, the following steps are also included:

[0170] S611: updating the three-dimensional model of the foaming layer and performing simulation calculation to obtain a foaming simulation result;

[0171] S612: Determine whether the foaming simulation result is qualified;

[0172] S613: When the foaming simulation result is unqualified, the size and / or position of the blocking block is adjusted according to the filling speed of the foaming material at the top of the foaming layer until the foaming simulation result is qualified.

[0173] By adjusting the size and position of the material stopper, the foaming cavity can be optimized, the cavitation area in the foaming layer after foaming can be reduced, the uniformity of the density of the foaming layer can be improved, the defective rate of the box foaming layer can be avoided to be too high, and the cost of using the foaming material can be reduced.

[0174] refer to Figure 13 , step S613 is specifically as follows:

[0175] When the foaming simulation result is unqualified, the speed type of the foaming material filling speed at the top of the foaming layer is determined according to the foaming simulation result; wherein the speed type includes a first type and a second type, and the foaming material filling speed corresponding to the first type is greater than the foaming material filling speed corresponding to the second type;

[0176] When the filling speed of the foam material at the top of the foaming layer belongs to the first type, the size and / or position of the blocking block is adjusted to reduce the filling speed of the foam material at the top of the foaming layer; when the filling speed of the foam material at the top of the foaming layer belongs to the second type, the size and / or position of the blocking block is adjusted to increase the filling speed of the foam material at the top of the foaming layer;

[0177] The three-dimensional model of the foaming layer is updated and simulation calculations are performed to determine whether the foaming simulation results are qualified. When the foaming simulation results are unqualified, the size and / or position of the blocking block is adjusted according to the filling speed of the foaming material at the top of the foaming layer until the foaming simulation results are qualified.

[0178] Specifically, the size of the stopper block includes the length of the stopper block 4 in the width direction of the box body 1 and the length of the stopper block 4 in the height direction of the box body 1, and the position of the stopper block includes the position of the stopper block 4 in the width direction of the box body 1 and the position of the stopper block 4 in the height direction of the box body 1. The front end of the stopper block contacts the inner liner 13, and the rear end of the stopper block 4 contacts the back plate 123.

[0179] In some embodiments, reference Figure 14 After adding the guide member 3 for guiding the foaming material to the top of the foaming cavity 14 into the foaming cavity 14, the following steps are also included:

[0180] S621: updating the three-dimensional model of the foaming layer and performing simulation calculations to obtain foaming simulation results;

[0181] S622: Determine whether the foaming simulation result is qualified;

[0182] S623: When the foaming simulation result is unqualified, the size and / or position of the guide channel is adjusted according to the filling speed of the foaming material on the top of the foaming layer until the foaming simulation result is qualified, wherein a guide channel is formed in the guide member 3, or the guide member 3 and the box body 1 form a guide channel 31.

[0183] By adjusting the size and position of the guide channel, the foaming cavity can be optimized, the cavitation area in the foaming layer after foaming can be reduced, the uniformity of the density of the foaming layer can be improved, the defective rate of the box foaming layer can be avoided to be too high, and the cost of using the foaming material can be reduced.

[0184] refer to Figure 15 , step S623 is specifically as follows:

[0185] When the foaming simulation result is unqualified, the speed type of the foaming material filling speed at the top of the foaming layer is determined according to the foaming simulation result; wherein the speed type includes a first type and a second type, and the foaming material filling speed corresponding to the first type is greater than the foaming material filling speed corresponding to the second type;

[0186] When the filling speed of the foaming material at the top of the foaming layer belongs to the first type, the size and / or position of the guide channel 31 are adjusted to reduce the filling speed of the foaming material at the top of the foaming layer; when the filling speed of the foaming material at the top of the foaming layer belongs to the second type, the size and / or position of the guide channel 31 are adjusted to increase the filling speed of the foaming material at the top of the foaming layer;

[0187] Update the three-dimensional model of the foaming layer and perform simulation calculations to determine whether the foaming simulation results are qualified. When the foaming simulation results are unqualified, adjust the size and / or position of the guide channel 3 according to the filling speed of the foaming material at the top of the foaming layer until the foaming simulation results are qualified.

[0188] In some embodiments, the flow guide 3 may be a flow guide bracket or a flow guide tube. The dimensions of the flow guide channel 31 include the cross-sectional area of the flow guide channel 31 perpendicular to the height of the housing and the length of the flow guide channel 31 in the height direction of the housing 1. The position of the flow guide channel includes the position of the flow guide channel in the height direction of the housing 1 and the position of the flow guide channel in the width direction of the housing 1.

[0189] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

[0190] For ease of explanation, the above description has been made with reference to specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations are possible. The above embodiments are selected and described to better explain the principles and practical applications, so that those skilled in the art can better utilize the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that: include: The housing (1) comprises: A box shell (12), wherein the box shell (12) is formed with an injection port (1221) for injecting foaming material; An inner liner (13) is disposed in the box shell (12), the inner liner (13) comprising a first inner liner (131) and a second inner liner (132), the first inner liner (131) being located above the second inner liner (132); The inner container (13) and the box shell (12) enclose a foaming cavity (14); the foaming cavity (14) includes a first foaming cavity (141) and a second foaming cavity (142); The first foaming cavity (141) is located above the injection port (1221); the first foaming cavity (141) is located behind the first inner liner (131) and the second inner liner (132); The second foaming cavity (142) is located between the first inner liner (131) and the second inner liner (132); a first opening (1421) is formed at the rear end of the second foaming cavity (142); the second foaming cavity (142) is communicated with the first foaming cavity (141) through the first opening (1421); A flow guide member (3) is provided in the box shell (12) and is at least partially located in the first foaming cavity (141); the flow guide member (3) partially blocks the first opening (1421); the flow guide member (3) is used to form a flow guide channel (31), and the flow guide member (3) forms the flow guide channel (31) alone, or the flow guide member (3) and the box body (1) jointly form the flow guide channel (31) to guide the foaming material to the top of the first foaming cavity (141).

2. The refrigerator according to claim 1, wherein: The box shell (12) comprises a back plate (123) for enclosing the guide channel (31), and the back plate (123) is located at the rear end of the box shell (12); The flow guide member (3) is a flow guide bracket, and the flow guide bracket comprises: a shielding plate (32), wherein the top end of the shielding plate (32) is connected to the first inner liner (131), the bottom end of the shielding plate (32) is connected to the second inner liner (132), and the shielding plate (32) partially shields the first opening (1421); A guide plate (33), the rear end of which contacts the back plate (123), the guide plate (33) being connected to the shielding plate (32), and two guide plates (33) being arranged opposite to each other and spaced apart in the width direction of the box body (1).

3. The refrigerator according to claim 2, characterized in that The guide channel (31) comprises a first guide channel (311) located at the bottom end of the guide channel (31); The guide plate (33) comprises: A first flow guide section (331) is located at the bottom end of the flow guide plate (33); a front end of the first flow guide section (331) is connected to the shielding plate (32); and the two first flow guide sections (331), the shielding plate (32) and the back plate (123) form the first flow guide channel (311).

4. The refrigerator according to claim 3, characterized in that The guide channel (31) further includes a second guide channel (312) connected to the top of the first guide channel (311); The guide plate (33) comprises: A second flow guide section (332) is connected above the first flow guide section (331); the second flow guide section (332) is located behind the first inner liner (131); the front end of the second flow guide section (332) is in contact with the first inner liner (131); the two second flow guide sections (332), the back plate (123) and the first inner liner (131) form the second flow guide channel (312).

5. The refrigerator according to any one of claims 2 to 4, characterized in that: The distance between the two guide plates (33) in the width direction of the box body (1) is a first distance L1, where L1 is ≥ 180 mm.

6. The refrigerator according to claim 1, wherein: The flow guide (3) is a flow guide pipe, and the flow guide pipe comprises: an extension tube (35) located at the top end of the flow guide tube, and the top end of the extension tube (35) is located behind the first inner container (131); A support frame (36) is connected to the bottom end of the extension tube (35), and the support frame (36) supports the bottom end of the extension tube (35) so that the foaming material enters the extension tube (35).

7. A method for optimizing the foaming process of a refrigerator cabinet, characterized in that: The following steps are involved: Constructing a three-dimensional model of a foaming layer according to the foaming cavity (14) of the refrigerator body (1); Build a foaming simulation model, perform foaming simulation calculations, and obtain foaming simulation results; Determining whether the foaming simulation result is qualified; When the foaming simulation result is unqualified, determining the speed type of the foaming material filling speed at the top of the foaming layer according to the foaming simulation result; wherein the speed type includes a first type and a second type, and the foaming material filling speed corresponding to the first type is greater than the foaming material filling speed corresponding to the second type; When the filling speed of the foaming material at the top of the foaming layer belongs to the first type, a blocking block (4) is added in the foaming cavity (14) to block the foaming material from flowing toward the top of the foaming cavity (14); When the filling speed of the foaming material at the top of the foaming layer belongs to the second type, a guide member (3) is added into the foaming cavity (14) to guide the foaming material toward the top of the foaming cavity (14).

8. The method for optimizing the foaming process of a refrigerator cabinet according to claim 7, characterized in that: After the blocking block (4) is added into the foaming cavity (14), the following steps are also included: Update the three-dimensional model of the foaming layer and perform simulation calculations to obtain foaming simulation results; Determining whether the foaming simulation result is qualified; When the foaming simulation result is unqualified, the size and / or position of the blocking block (4) is adjusted according to the filling speed of the foaming material at the top of the foaming layer until the foaming simulation result is qualified.

9. The method for optimizing the foaming process of a refrigerator cabinet according to claim 7, characterized in that: After the guide member (3) is added into the foaming cavity (14), the following steps are also included: Update the three-dimensional model of the foaming layer and perform simulation calculations to obtain foaming simulation results; Determining whether the foaming simulation result is qualified; When the foaming simulation result is unqualified, the size and / or position of the guide channel (31) is adjusted according to the filling speed of the foaming material at the top of the foaming layer until the foaming simulation result is qualified, wherein the guide member (3) forms the guide channel (31) alone, or the guide member (3) and the box body (1) jointly form the guide channel (31).

10. The method for optimizing the foaming process of a refrigerator cabinet according to claim 7, characterized in that: Also includes: During the construction of the foaming simulation model, a detector is provided at the front end of the top surface of the three-dimensional model of the foaming layer; during the foaming simulation, the detector detects the time when the foaming material flows to the front end of the top surface of the foaming layer, and the time when the foaming material flows to the front end of the top surface of the foaming layer is the filling time T; The conditions for judging whether the foaming simulation result is qualified include at least a first condition. When the first condition is not met, the foaming simulation result is unqualified. The first condition is specifically: the filling time T is greater than a first preset time T1 and less than a second preset time T2, and the second preset time T2 is greater than the first preset time T1.

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