Cabinet assembly and refrigerator

Abstract

The utility model discloses a box assembly and a refrigerator, the box assembly comprises an inner liner, a support beam and a partition. The inner side wall of the inner liner is provided with a plurality of first protrusions. One end of the support beam is connected to the top wall of the inner liner, and the other end is connected to the bottom wall of the inner liner. The support beam is provided with a plurality of second protrusions. The partition is arranged in the inner liner, and the partition is provided with a third protrusion and a fourth protrusion corresponding to the first protrusion and the second protrusion respectively. The partition is pressed against the first protrusion by the third protrusion to be fixedly connected with the inner liner, and the partition is pressed against the second protrusion by the fourth protrusion to be fixedly connected with the support beam, so as to separate the inner liner into a first storage cavity and a second storage cavity spaced apart along a first direction. The partition in the box assembly is supported by the inner side wall and the support beam of the refrigerator, so as to avoid the partition from applying concentrated force on the bottom wall of the inner liner of the refrigerator, so as to reduce the load-bearing pressure of the bottom wall of the inner liner of the refrigerator, reduce the possibility of the bottom wall of the inner liner of the refrigerator breaking, and thus improve the reliability of the refrigerator as a whole.

Description

Technical Field

[0001] The present disclosure relates to the technical field of household appliances, and in particular to a cabinet assembly and a refrigerator. Background Art

[0002] With the development of social economy and the improvement of people's living standards, household appliances such as refrigerators have become indispensable in people's daily lives. With the improvement of people's consumption level, more and more food needs to be refrigerated and preserved, and the size of refrigerators is getting bigger and bigger. In large refrigerators, a middle partition is usually used to divide the left and right compartments of the refrigerator.

[0003] In the related art, the load in the compartment is usually carried by a partition, and the partition is usually supported only by the bottom wall of the refrigerator liner, which can easily cause the bottom wall of the refrigerator liner to bear excessive load and break. Utility Model Content

[0004] In view of this, the present disclosure provides a cabinet assembly and a refrigerator to reduce the load-bearing pressure on the bottom wall of the refrigerator inner container.

[0005] Specifically, the present disclosure is achieved through the following technical solutions:

[0006] According to a first aspect of an embodiment of the present disclosure, a box assembly is provided, which includes an inner liner, a support beam, and a partition. The inner side wall of the inner liner is provided with a plurality of first protrusions. One end of the support beam is connected to the top wall of the inner liner, and the other end is connected to the bottom wall of the inner liner. The support beam is provided with a plurality of second protrusions. The partition is arranged in the inner liner, and the partition is provided with a third protrusion and a fourth protrusion corresponding to the first protrusion and the second protrusion, respectively. The partition is pressed against the first protrusion by the third protrusion to be fixedly connected to the inner liner, and the partition is pressed against the second protrusion by the fourth protrusion to be fixedly connected to the support beam, so as to separate the inner liner into a first storage cavity and a second storage cavity spaced apart along a first direction.

[0007] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0008] By connecting one end of the support beam to the top wall of the liner and the other end to the bottom wall, the overall structural stability of the box assembly can be effectively enhanced. This connection method enables the support beam to evenly support the top and bottom of the liner to prevent the liner from deforming. It also helps to improve the load-bearing capacity of the box assembly, ensuring that the box assembly will not cause the liner to deform or be damaged due to excessive load during use. When the box assembly is in use, the partition is installed in the liner, and the third protrusion of the partition presses against the first protrusion of the liner, thereby sharing part of the load of the partition to the inner side wall of the liner, and the fourth protrusion of the partition presses against the second protrusion of the support beam, so that part of the load of the partition is shared on the support beam. In this way, the loaded partition can be supported by the inner side wall of the liner and the support beam, thereby avoiding the partition from concentrating on the bottom wall of the liner, so as to reduce the load-bearing pressure of the bottom wall of the refrigerator liner, reduce the possibility of the bottom wall of the liner breaking, and thus improve the overall reliability of the refrigerator. Furthermore, by providing a plurality of first protrusions and second protrusions, the bearing force can be distributed to each of the first protrusions and the second protrusions, thereby reducing stress concentration and further improving the bearing capacity of the box assembly.

[0009] The technical solution of the present disclosure is further described below:

[0010] In one embodiment, a plurality of first protrusions are arranged at intervals on the inner wall of the inner container along the second direction, and a plurality of second protrusions are arranged at intervals on the support beam along the second direction, wherein the first direction is arranged perpendicular to the second direction.

[0011] In one embodiment, the first direction is arranged along the width direction of the box assembly, and the second direction is arranged along the height direction of the box assembly.

[0012] In one embodiment, the plurality of first protrusions and the inner container are an integrally formed structure.

[0013] And / or, the plurality of second protrusions and the support beam are an integrally formed structure.

[0014] In one embodiment, the box assembly further includes a first shell, and the first shell is spaced apart from the inner wall of the inner container to form an air duct. The air duct is connected to the first storage cavity and the second storage cavity. The partition abuts against the first shell. The first shell is provided with an avoidance groove to avoid the plurality of first protrusions.

[0015] In one embodiment, the box assembly further includes a second shell, the second shell is connected to the inner wall of the inner tank to form a receiving cavity, and the receiving cavity is communicated with the air duct. The partition abuts against the second shell. The box assembly further includes an evaporator, and the evaporator is arranged in the receiving cavity.

[0016] In one embodiment, the accommodating cavity is located below the first storage cavity and the second storage cavity.

[0017] In one of the embodiments, the box assembly further includes a plurality of drawers, which are slidably connected to the inner side wall and the partition of the inner container, and the plurality of drawers are respectively located in the first storage cavity and the second storage cavity.

[0018] In one embodiment, the inner wall and the partition of the inner container are respectively provided with rollers, and the drawer is provided with guide rails that can cooperate with the rollers. The drawer is slidably connected with the inner wall and the partition of the inner container through the cooperation of the rollers and the guide rails.

[0019] According to a second aspect of the embodiments of the present disclosure, a refrigerator is also provided, comprising a door assembly and a body assembly in any of the above embodiments, wherein the door assembly is rotatably connected to the body to open or close the body assembly.

[0020] The technical solution provided by the embodiments of the present disclosure includes at least the following beneficial effects:

[0021] The refrigerator applies the box assembly of any of the above embodiments, which can reduce the load-bearing pressure on the bottom wall of the refrigerator inner tank to reduce the possibility of fracture of the bottom wall of the inner tank, thereby improving the reliability of the overall structure of the refrigerator.

[0022] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] BRIEF DESCRIPTION OF THE DRAWINGS The drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and the description thereof are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure.

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 The figure is a front view structural schematic diagram of a refrigerator shown in an embodiment.

[0026] Figure 2 for Figure 1 The cross-sectional structure diagram of the refrigerator shown.

[0027] Figure 3 for Figure 1 The refrigeration principle diagram of the refrigerator shown.

[0028] Figure 4 for Figure 1 A schematic structural diagram of the inner tank of a refrigerator is shown.

[0029] Figure 5 for Figure 1 A schematic structural diagram of the inner tank of a refrigerator is shown.

[0030] Figure 6 for Figure 1 The schematic diagram of the front view structure of the inner tank of the refrigerator is shown.

[0031] Figure 7 for Figure 6 The cross-sectional structure diagram of the inner tank of the refrigerator is shown.

[0032] Figure 8 for Figure 7 A partial enlarged structural schematic diagram of the inner tank of the refrigerator is shown.

[0033] Fig. 9 for Figure 7 A partial enlarged structural schematic diagram of the inner tank of the refrigerator is shown.

[0034] Fig.10 for Figure 4 A schematic structural diagram of the drawer of the inner tank shown.

[0035] Description of Figure Numbers.

[0036] 1. Refrigerator; 10. Compressor; 20. Condenser; 30. Evaporator; 40. Expansion valve; 100. Cabinet assembly; 110. Outer shell; 120. Inner liner; 121. First protrusion; 122. First storage cavity; 123. Second storage cavity; 130. Support beam; 131. Second protrusion; 140. Partition; 141. Third protrusion; 142. Fourth protrusion; 150. Drawer; 151. Guide rail; 160. Roller; 170. First shell; 180. Second shell; 101. Air duct; 102. Accommodating cavity; 200. Door assembly. DETAILED DESCRIPTION

[0037] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements.

[0038] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.

[0039] With the development of social economy and the improvement of people's living standards, refrigerators, freezers and other household appliances have become indispensable appliances in people's daily lives. However, there are many types and brands of refrigerators, freezers and other household appliances, which makes consumers have many choices. How to win the favor of consumers and improve product competitiveness has become an issue that refrigerator, freezer and other household appliance manufacturers pay more and more attention to.

[0040] As people's consumption level increases, more and more food needs to be refrigerated and preserved, and the size of refrigerators is also getting larger. In large refrigerators, a middle partition is usually used to divide the left and right compartments of the refrigerator. In related technologies, the load in the compartment is usually carried by the partition, and the partition is usually supported only by the bottom wall of the refrigerator liner, which easily causes the bottom wall of the refrigerator liner to bear too much load and break.

[0041] Based on this, the present disclosure provides a box assembly 100 and a refrigerator 1, in which the partition 140 in the box assembly 100 is supported by the inner wall of the refrigerator 1 and the support beam 130, so as to avoid the partition 140 from exerting concentrated force on the bottom wall of the inner tank 120 of the refrigerator 1 and causing the bottom wall to break, thereby improving the overall reliability of the refrigerator 1.

[0042] In order to better understand the cabinet assembly 100 of the present disclosure, the refrigerator 1 to which the cabinet assembly 100 is applied is used for explanation.

[0043] like Figure 1 to Figure 2 As shown, in some embodiments, the refrigerator 1 includes a box assembly 100, and the box assembly 100 includes an outer shell 110, an inner liner 120, and an insulation layer (not shown). Among them, the outer shell 110 is the outer structure of the refrigerator 1, which can protect the refrigerator 1. The inner liner 120 is provided with a storage cavity for placing items that need to be frozen, refrigerated, and preserved. In order to isolate the heat conduction between the storage cavity and the outside world, an insulation layer is provided between the outer shell 110 and the inner liner 120 of the box assembly 100 to reduce the heat transfer between the storage cavity and the outside world.

[0044] It should be noted that the heat insulating layer can be made by a foaming process, and can specifically be a foaming layer.

[0045] It should be noted that there may be one or more inner tanks 120, and the inner tanks 120 may be divided into refrigerated inner tanks 120, variable temperature inner tanks 120, frozen inner tanks 120, etc. according to their functions. The specific number and function of the inner tanks 120 may be configured according to the use requirements of the refrigerator 1, and no further description will be given here.

[0046] like Figure 1 to Figure 2 As shown, in some embodiments, the refrigerator 1 further includes a cabinet door assembly 200 , and the cabinet door assembly 200 is rotatably connected to the cabinet body to open or close the cabinet body assembly 100 .

[0047] like Figures 1 to 9 As shown, in some embodiments, the box assembly 100 includes an inner liner 120, a support beam 130 and a partition 140. The inner side wall of the inner liner 120 is provided with a plurality of first protrusions 121. One end of the support beam 130 is connected to the top wall of the inner liner 120, and the other end is connected to the bottom wall of the inner liner 120. The support beam 130 is provided with a plurality of second protrusions 131. The partition 140 is arranged in the inner liner 120, and the partition 140 is provided with a third protrusion 141 and a fourth protrusion 142 corresponding to the first protrusion 121 and the second protrusion 131 respectively. The partition 140 is pressed against the first protrusion 121 by the third protrusion 141 to be fixedly connected to the inner liner 120, and the partition 140 is pressed against the second protrusion 131 by the fourth protrusion 142 to be fixedly connected to the support beam 130, so as to separate the inner liner 120 into a first storage cavity 122 and a second storage cavity 123 arranged at intervals along the first direction.

[0048] In this way, by connecting one end of the support beam 130 to the top wall of the inner liner 120 and the other end to the bottom wall, the overall structural stability of the box assembly 100 can be effectively strengthened. Such a connection method enables the support beam 130 to evenly support the top and bottom of the inner liner 120 to prevent the inner liner 120 from deforming. It also helps to improve the load-bearing capacity of the box assembly 100, ensuring that the box assembly 100 will not cause deformation or damage to the inner liner 120 due to excessive load during use. When the box assembly 100 is in use, the partition 140 is installed in the inner liner 120, and the third protrusion 141 of the partition 140 presses against the first protrusion 121 of the inner liner 120, thereby sharing part of the load of the partition 140 to the inner side wall of the inner liner 120, and the fourth protrusion 142 of the partition 140 presses against the second protrusion 131 of the support beam 130, so that part of the load of the partition 140 is shared on the support beam 130. In this way, the loaded partition 140 can be supported by the inner side wall of the inner tank 120 and the support beam 130, thereby preventing the partition 140 from applying concentrated force to the bottom wall of the inner tank 120, so as to reduce the load-bearing pressure of the bottom wall of the inner tank 120 of the refrigerator 1, reduce the possibility of fracture of the bottom wall of the inner tank 120, and thus improve the overall reliability of the refrigerator 1. In addition, by providing a plurality of first convex portions 121 and second convex portions 131, the bearing force can be distributed to each first convex portion 121 and second convex portion 131, reducing stress concentration, thereby further improving the load-bearing capacity of the box assembly 100.

[0049] It should be noted that the fixed connection between the partition 140 and the inner container 120 and the fixed connection between the partition 140 and the support beam 130 may be a detachable fixed connection or a non-detachable fixed connection.

[0050] It can be understood that the first storage cavity 122 and the second storage cavity 123 can be used to place items that need to be frozen, refrigerated, or kept fresh.

[0051] It should be noted that the support beam 130 and the inner liner 120 can be manufactured in one piece, or can be manufactured separately and then assembled.

[0052] In one example, the support beam 130 and the inner container 120 are integrally formed, thereby reducing assembly processes and improving assembly efficiency.

[0053] like Figure 4 As shown, in some embodiments, the box assembly 100 further includes a plurality of drawers 150, which are slidably connected to the inner side wall of the inner liner 120 and the partition 140, and the plurality of drawers 150 are respectively located in the first storage cavity 122 and the second storage cavity 123. In this way, by arranging a plurality of drawers 150 in the first storage cavity 122 and the second storage cavity 123, the items to be frozen, refrigerated, or preserved can be placed in the drawers 150, which is convenient for users to take and put.

[0054] like Figure 5 as well as Fig.10 As shown, in some embodiments, the inner side wall of the inner container 120 and the partition 140 are respectively provided with rollers 160, and the rollers 160 are rollingly connected with the inner side wall of the inner container 120 and the partition 140, and the drawer 150 is provided with a guide rail 151 that can cooperate with the roller 160, and the drawer 150 is slidably connected with the inner side wall of the inner container 120 and the partition 140 through the roller 160 and the guide rail 151. In this way, through the cooperation of the guide rail 151 and the roller 160, it is convenient for the user to pull out or return the drawer 150 from the first storage cavity 122 and the second storage cavity 123, so as to facilitate the user's operation and improve the user's use experience.

[0055] like Figures 1 to 3 As shown, in some embodiments, the refrigerator 1 generally includes a compressor 10, a condenser 20, an evaporator 30 and an expansion valve 40. When the refrigerator 1 is running, the compressor 10 outputs a high-temperature and high-pressure gaseous refrigerant to the condenser 20, and the high-temperature and high-pressure gaseous refrigerant is condensed into a medium-temperature and high-pressure refrigerant through the condenser 20. The medium-temperature and high-pressure refrigerant passes through the expansion throttling effect of the expansion valve 40, so that the pressure and temperature of the refrigerant are further reduced, and a low-temperature and low-pressure liquid refrigerant flows out of the expansion valve 40 to the evaporator 30. The low-temperature and low-pressure liquid refrigerant evaporates into a gaseous refrigerant in the evaporator 30. Then the gaseous refrigerant can enter the cold storage compartment and the freezing compartment of the refrigerator 1 through the air duct 101 to refrigerate the cold storage compartment and the freezing compartment.

[0056] like Figure 7As shown, in some embodiments, the box assembly 100 further includes a first shell 170, and the first shell 170 is spaced apart from the inner wall of the liner 120 to form an air duct 101. The air duct 101 is connected to the first storage chamber 122 and the second storage chamber 123. In this way, the air duct 101 is formed by the spaced apart arrangement of the first shell 170 and the inner wall of the liner 120, and the gaseous refrigerant generated by the evaporator 30 can enter the liner 120 through the air duct 101 to perform refrigeration.

[0057] Furthermore, since the partition 140 is pressed against the first protrusion 121 of the inner liner 120 through the third protrusion 141, the partition 140 is relatively fixed to the inner liner 120. Therefore, in some embodiments, the first shell 170 is provided with an avoidance groove (not shown) to avoid the multiple first protrusions 121, and the partition 140 is in contact with the first shell 170. In this way, by providing an avoidance groove on the first shell 170 to avoid the multiple first protrusions 121, the partition 140 can be pressed against the first protrusion 121 through the third protrusion 141.

[0058] In the design of the refrigerator 1 , the evaporator 30 may generally be located at the top, the back or the bottom, and the evaporator 30 is connected to the air duct 101 so that the refrigerant generated by the evaporator 30 can enter the air duct 101 .

[0059] like Figure 7 As shown, in some embodiments, the box assembly 100 further includes a second shell 180, the second shell 180 is connected to the inner wall of the inner liner 120 to form a receiving chamber 102, the evaporator 30 is disposed in the receiving chamber 102, the receiving chamber 102 is communicated with the air duct 101, and the partition 140 abuts against the second shell 180. In this way, the inner liner 120 connected to the inner liner 120 by the second shell 180 forms the receiving chamber 102, the receiving chamber 102 is communicated with the air duct 101, and the evaporator 30 is disposed in the receiving chamber 102, and the refrigerant generated by the evaporator 30 can enter the air duct 101 through the receiving chamber 102. Furthermore, since the gravity of the drawer 150 is partially applied to the partition 140, and the partition 140 is respectively applied to the support beam 130 and the inner wall of the inner tank 120, the second shell 180 that can protect the accommodating cavity 102 does not need to bear the load of the partition 140, thereby avoiding the second shell 180 from bearing the load and causing breakage, thereby improving the load-bearing capacity and reliability of the overall structure of the refrigerator 1.

[0060] Furthermore, if Figure 6 to Figure 7As shown, in some embodiments, the accommodating cavity 102 is located below the first storage cavity 122 and the second storage cavity 123. That is, the evaporator 30 is located at the bottom of the inner tank 120. In this way, the evaporator 30 is arranged at the bottom of the inner tank 120 to avoid the evaporator 30 in the traditional refrigerator 1 occupying the rear space of the freezer compartment and causing the depth of the freezer compartment to be reduced. Especially for the refrigerator 1 with double doors, when the horizontal dimension of the freezer compartment is already small, it is particularly important to increase its depth dimension, thereby improving the space utilization of the refrigerator 1 and facilitating the storage of large and difficult to separate items.

[0061] However, researchers have found in practice that when the evaporator 30 is placed at the bottom of the liner 120, the traditional design method is adopted, and the partition 140 will concentrate the force on the second shell 180, resulting in the extrusion of the second shell 180, and then the evaporator 30, and even the second shell 180 will be broken. The existing technical solution usually adopts the method of adding two reinforcing irons to support the partition 140 by reinforcing irons, but the working condition of the reinforcing iron is poor, the surface requires special treatment, and the cost is high. Therefore, by adopting the above-mentioned method in the present disclosure, the third protrusion 141 of the partition 140 is pressed against the first protrusion 121 of the liner 120, so that part of the load of the partition 140 is shared to the inner wall of the liner 120, and the fourth protrusion 142 of the partition 140 is pressed against the second protrusion 131 of the support beam 130, so that part of the load of the partition 140 is shared on the support beam 130. Thereby avoiding the need for the second shell 180 to bear the partition 140, and avoiding the second shell 180 from breaking and affecting the performance of the evaporator 30. Furthermore, the method disclosed herein can reduce costs.

[0062] like Figures 1 to 7 As shown, in some embodiments, a plurality of first protrusions 121 are arranged at intervals on the inner side wall of the inner liner 120 along the second direction, and a plurality of second protrusions 131 are arranged at intervals on the support beam 130 along the second direction. The first direction is arranged perpendicular to the second direction. In this way, by arranging the first protrusions 121 at intervals on the inner side wall of the inner liner 120 along the second direction, and arranging the second protrusions 131 at intervals on the support beam 130 along the second direction, the bearing force can be further evenly distributed to various positions of the inner liner 120 and the support beam 130, reducing stress concentration, thereby further improving the bearing capacity of the box assembly 100.

[0063] Furthermore, if Figure 1 As shown, in some embodiments, the first direction is set along the width direction of the box assembly 100 , and the second direction is set along the height direction of the box assembly 100 .

[0064] It should be noted that the width direction of the box assembly 100 is Figure 1 The X direction is shown, and the height direction of the box is Figure 1 The Y direction.

[0065] like Figures 7 to 9 As shown, in some embodiments, the plurality of first protrusions 121 and the inner tank 120 are an integrally formed structure. In this way, by integrally forming the first protrusions 121 and the inner tank 120, the assembly process can be reduced and the assembly efficiency can be improved. Furthermore, the inner tank 120 of the refrigerator 1 is usually made by injection molding or thermoforming. The method of adding the first protrusions 121 to the inner tank 120 by the above two processes is simple, and there is no need to change the original production process, which is easy to implement.

[0066] Of course, if Figures 7 to 9 As shown, in some embodiments, the plurality of second protrusions 131 may also be an integrally formed structure with the support beam 130. In this way, the assembly process can also be reduced and the assembly efficiency can be improved.

[0067] It should be noted that the number of the first convex portions 121 and the second convex portions 131 can be set according to actual needs, and the third convex portions 141 and the fourth convex portions 142 are set according to the number of the first convex portions 121 and the second convex portions 131 .

[0068] like Figure 7 As shown, in one example, since the design of the inner tank 120 of the refrigerator 1 is usually such that the height of the side wall close to the door is greater than the height of the side wall away from the door, there can be two first protrusions 121 and three second protrusions 131. In this way, the force transmitted to the partition 140 is transmitted to the inner tank 120 and the support beam 130 through the cooperation of these five protrusions, so as to prevent the evaporator 30 at the bottom of the inner tank 120 from being damaged by the force.

[0069] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the utility model concept of the present disclosure, and these all belong to the protection scope of the present disclosure.

Claims

1. A box assembly, characterized in that: include: An inner liner, wherein the inner side wall of the inner liner is provided with a plurality of first protrusions; A support beam, one end of which is connected to the top wall of the inner container, and the other end of which is connected to the bottom wall of the inner container; the support beam is provided with a plurality of second protrusions; as well as A partition, wherein the partition is arranged in the inner tank, and the partition is provided with a third protrusion and a fourth protrusion corresponding to the first protrusion and the second protrusion respectively; the partition is pressed against the first protrusion by the third protrusion to be fixedly connected to the inner tank, and the partition is pressed against the second protrusion by the fourth protrusion to be fixedly connected to the support beam, so as to separate the inner tank into a first storage cavity and a second storage cavity spaced apart along a first direction.

2. The box assembly according to claim 1, characterized in that: A plurality of the first protrusions are arranged at intervals on the inner wall of the liner along a second direction, and a plurality of the second protrusions are arranged at intervals on the support beam along the second direction; wherein the first direction is arranged perpendicular to the second direction.

3. The box assembly according to claim 2, characterized in that: The first direction is arranged along a width direction of the box assembly, and the second direction is arranged along a height direction of the box assembly.

4. The box assembly according to claim 1, characterized in that: The plurality of first protrusions and the inner container are an integrally formed structure; And / or, the plurality of second protrusions and the support beam are an integrally formed structure.

5. The box assembly according to claim 1, characterized in that: The box assembly also includes a first shell, which is spaced apart from the inner wall of the inner tank to form an air duct; the air duct is connected to the first storage cavity and the second storage cavity; the partition abuts against the first shell; and the first shell is provided with an avoidance groove to avoid the multiple first protrusions.

6. The box assembly according to claim 5, characterized in that: The box assembly also includes a second shell, which is connected to the inner wall of the inner tank to form a accommodating cavity, and the accommodating cavity is communicated with the air duct; the partition abuts against the second shell; the box assembly also includes an evaporator, which is arranged in the accommodating cavity.

7. The box assembly according to claim 6, characterized in that: The accommodating cavity is located below the first storage cavity and the second storage cavity.

8. The box assembly according to claim 1, characterized in that: The box assembly further includes a plurality of drawers, which are slidably connected to the inner side wall of the inner container and the partition, and the plurality of drawers are respectively located in the first storage cavity and the second storage cavity.

9. The box assembly according to claim 8, characterized in that: The inner side wall of the inner container and the partition are respectively provided with rollers, and the drawer is provided with guide rails capable of cooperating with the rollers. The drawer cooperates with the guide rails through the rollers to be slidably connected with the inner side wall of the inner container and the partition.

10. A refrigerator, characterized in that: It comprises a door assembly and a box assembly according to any one of claims 1 to 9, wherein the door assembly is rotatably connected to the box to open or close the box assembly.

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