Refrigerator

Abstract

The utility model relates to a refrigerator, which belongs to the technical field of refrigeration equipment and comprises a refrigerator shell, a refrigerator cover and a refrigerator cover. The refrigerator inner container is arranged in the refrigerator shell, and a refrigeration chamber is arranged in the refrigerator inner container; the refrigerator door is connected to the refrigerator shell so as to open or close the refrigeration chamber; the mounting hole is formed in the box bottom plate; the drain pipe penetrates through the mounting hole, one end of the drain pipe is communicated with the refrigeration chamber, and the other end of the drain pipe is communicated with the outside; the connecting part is convexly arranged on the peripheral wall of the drain pipe and is propped against one end, far away from the refrigerator liner, of the mounting hole; the elastic sealing part is arranged on the peripheral wall of the drain pipe, the elastic sealing part and the connecting part are arranged in a spaced mode, and part of the elastic sealing part is stressed to abut against the side, facing the refrigerator inner container, of the refrigerator bottom plate. The elastic sealing part is matched with the connecting part, so that the drainage pipe is tightly connected to the box bottom plate, the elastic sealing part is compressed under stress and is in fit sealing with the box bottom plate, and the sealing effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigerators, and in particular relates to a refrigerator. Background Art

[0002] Refrigerators can refrigerate fresh fruits and vegetables, or some commonly used condiments at low temperatures, keeping them fresh and extending their storage time. They can also freeze some quick-frozen foods, cold drinks, and fish and meat that are eaten for a long time. They are one of the essential household appliances in people's daily lives.

[0003] The refrigerator comprises at least a box shell, a box liner and a drain pipe. The box liner is arranged in the box shell and has a refrigeration chamber. A foaming space is formed between the box liner and the box shell. The drain pipe is arranged in the foaming space for discharging condensed water in the refrigeration chamber in time.

[0004] In the related art, the drain pipe and the bottom plate of the box shell are usually sealed by sponge. This sealing method requires additional sponge, which is inconvenient to operate and increases costs. At the same time, the thickness of the sponge is difficult to control, resulting in poor sealing effect and low stability. During the foaming process of the refrigerator, the foaming material is easy to leak from the gap between the drain pipe and the bottom plate, affecting the heat preservation performance of the refrigerator and increasing the power consumption of the refrigerator. In addition, the drain pipe and the bottom plate are not completely fixed. Affected by the assembly and foaming pressure, the length of the water outlet end of the drain pipe protruding from the bottom plate is easy to deviate, affecting the assembly effect of the refrigerator. Utility Model Content

[0005] In view of the deficiencies existing in the related art, the utility model provides a refrigerator so that the refrigerator with a glass door has the function of a memo pad to meet the needs of users, and has a simple structure and high convenience, which is conducive to improving the user experience.

[0006] The utility model provides a refrigerator, comprising:

[0007] A box shell, wherein the box shell includes a box bottom plate;

[0008] A box liner is arranged inside the box shell, the box liner has a refrigeration chamber, and a foaming space is formed between the box liner and the box shell;

[0009] A door connected to the box shell to open or close the refrigeration chamber;

[0010] A mounting hole is provided on the bottom plate of the box;

[0011] A drainage pipe is arranged in the foaming space and penetrates the mounting hole, one end of the drainage pipe is connected to the refrigeration compartment, and the other end thereof is connected to the outside;

[0012] A connecting portion protruding from the outer peripheral wall of the drain pipe, the connecting portion abutting against an end of the mounting hole away from the box liner;

[0013] The elastic sealing part is arranged on the outer peripheral wall of the drain pipe and is spaced apart from the connecting part. Part of the elastic sealing part is forced to abut against the side of the box bottom plate facing the box inner tank.

[0014] In the refrigerator provided by the technical solution, the connection part abuts against the end of the mounting hole away from the box inner tank, and part of the elastic sealing part is forced to abut against the side of the box bottom plate facing the box inner tank, so that the box bottom plate is tightly connected between the elastic sealing part and the connection part, and then the drain pipe is tightly connected to the box bottom plate, avoiding the deviation of the length of the water outlet end of the drain pipe protruding from the box bottom plate. At the same time, the elastic sealing part is elastic, and will be compressed by force during assembly to fit and seal with the box bottom plate, with good sealing effect, effectively blocking the connection between the foaming space and the gap (the gap between the inner wall of the mounting hole and the drain pipe), thereby preventing the foaming material in the foaming space from leaking from the gap.

[0015] According to an embodiment of the present disclosure, a refrigerator is also provided, comprising:

[0016] A box shell, wherein the box shell includes a box bottom plate;

[0017] A box liner is arranged inside the box shell, the box liner has a refrigeration chamber, and a foaming space is formed between the box liner and the box shell;

[0018] A door connected to the box shell to open or close the refrigeration chamber;

[0019] A mounting hole is provided on the bottom plate of the box;

[0020] A drainage pipe is arranged in the foaming space and penetrates the mounting hole, one end of the drainage pipe is connected to the refrigeration compartment, and the other end thereof is connected to the outside;

[0021] A connecting portion protruding from the outer peripheral wall of the drain pipe;

[0022] An elastic sealing portion, which is arranged on the outer peripheral wall of the drain pipe and is spaced apart from the connecting portion, wherein the distance between the elastic sealing portion and the connecting portion is smaller than the distance between the two ends of the mounting hole;

[0023] During assembly, the drain pipe passes through the mounting hole from top to bottom. When the connecting portion passes through the mounting hole and abuts against the end of the mounting hole away from the box inner tank, the elastic sealing portion is deformed by force so that its part abuts against the side of the box bottom plate facing the box inner tank, so that the drain pipe is firmly connected to the box bottom plate.

[0024] In the refrigerator provided by the technical solution, since the distance between the elastic sealing part and the connecting part is smaller than the distance between the two ends of the mounting hole, when the drain pipe is assembled with the box bottom plate, the connecting part is clamped and fixed with one end of the mounting hole, and at the same time, the elastic sealing part is compressed by force to closely adhere to the side of the box bottom plate facing the box inner tank to achieve a sealing function, and the sealing effect is good. The elastic sealing part cooperates with the connecting part, so that the drain pipe is firmly connected to the box bottom plate, thereby improving assembly efficiency.

[0025] According to an embodiment of the present disclosure, the elastic sealing portion is in a conical hollow structure, and the conical hollow structure is arranged so that the elastic sealing portion has a certain amount of compression when subjected to force in the axial direction of the drain pipe.

[0026] According to the embodiments of the present disclosure, in the axial direction of the drain pipe, the distance between the edge of the elastic sealing portion and the connecting portion is smaller than the distance between the two ends of the mounting hole; the elastic sealing portion and the box bottom plate have an interference fit, which can compensate for the assembly error from the box bottom plate to the box inner tank and has a wider adaptability.

[0027] According to an embodiment of the present disclosure, in the axial direction of the drain pipe, the length of the elastic sealing portion is not less than 5 mm, ensuring that the elastic sealing portion has sufficient compression.

[0028] According to an embodiment of the present disclosure, the edge of the mounting hole extends in a direction away from the box inner tank to form a flange. The provision of the flange can strengthen the structural strength of the connection between the drain pipe and the box bottom plate, thereby improving the stability of the connection between the drain pipe and the box bottom plate.

[0029] According to an embodiment of the present disclosure, the connecting portion includes a clamping plane, which is connected to an end of the flange away from the box inner container; by providing the clamping plane, the contact area between the connecting portion and the flange is ensured, thereby improving the connection stability.

[0030] According to an embodiment of the present disclosure, the connecting portion includes a guide surface, one end of which is connected to the clamping plane, and the other end of which is connected to the drain pipe; the provision of the guide surface enables the connecting portion to enter the flange hole more easily, thereby facilitating the installation of the drain pipe.

[0031] According to an embodiment of the present disclosure, at least one notch is arranged on the flange at intervals along the circumferential direction, and the provision of the notch increases the elasticity and facilitates the insertion of the connecting part.

[0032] According to an embodiment of the present disclosure, the thickness of the elastic sealing portion is any value between 1.0 and 1.2 mm, so that the drain pipe can be quickly installed while ensuring the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 is a front view of a refrigerator according to an embodiment of the present disclosure;

[0035] Figure 2 is a schematic structural diagram of a refrigerator with a door omitted according to an embodiment of the present disclosure;

[0036] Figure 3 is a schematic structural diagram of a refrigerator according to an embodiment of the present disclosure in which a rear plate is omitted;

[0037] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0038] Figure 5 is a structural schematic diagram of a refrigerator with a rear panel omitted from another viewing angle according to an embodiment of the present disclosure;

[0039] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle;

[0040] Figure 7 is a schematic diagram of a partial structure inside a refrigerator according to an embodiment of the present disclosure;

[0041] Figure 8 is a schematic structural diagram of a box bottom plate according to an embodiment of the present disclosure;

[0042] Fig. 9 is a perspective view of a drain pipe according to an embodiment of the present disclosure;

[0043] Fig.10 is an exploded view of a box bottom plate and a drain pipe according to an embodiment of the present disclosure;

[0044] Fig.11 is a partial rear view of the interior of a refrigerator according to an embodiment of the present disclosure;

[0045] Fig.12 yes Fig.11 Sectional view at AA in the middle;

[0046] Fig.13 yes Fig.12 A partial enlarged view of point C in the middle;

[0047] Fig.14 is a schematic diagram of the structure of the drainage pipe in an unstressed state according to an embodiment of the present disclosure;

[0048] Fig.15 is a schematic diagram of the structure of the drainage pipe under a compressed state according to an embodiment of the present disclosure;

[0049] Fig.16 yes Fig.15 A cross-sectional view of

[0050] Fig.17 is a schematic structural diagram of a box bottom plate from another perspective according to an embodiment of the present disclosure;

[0051] Fig.18 is a cross-sectional view of a tank bottom plate and a drain pipe according to an embodiment of the present disclosure;

[0052] Fig.19 yes Fig.18 A partial enlarged view of point D in the middle;

[0053] Fig. 20 It is a schematic diagram of the partial structure of the bottom plate of the lower box according to another embodiment of the present disclosure.

[0054] In the above figures: refrigerator 100; box body 1; box shell 11; box bottom plate 111; box top plate 112; box side plate 113; box liner 12; opening 13; box door 2; mounting hole 3; drain pipe 4; connecting part 5; clamping plane 51; guide surface 52; elastic sealing part 6; flange 7; notch 71. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0056] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 should not be understood as a limitation on the present invention.

[0057] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] The refrigerator 100 provided by the utility model is as follows Figures 1 to 20 The refrigerator 100 is described. Figure 1 It is a front view of the refrigerator 100.

[0060] refer to Figure 2 In an exemplary embodiment of the refrigerator of the present invention, the refrigerator 100 may include a cabinet 1 .

[0061] In some embodiments of the present application, the box body 1 is substantially in the shape of a rectangular parallelepiped, and the box body 1 forms the main structure of the refrigerator 100. It can be understood that in some other embodiments, the box body 1 can also adopt a shell structure of other shapes.

[0062] In some embodiments of the present application, the box body 1 may include a box shell 11. The box shell 11 has an installation space inside.

[0063] In some embodiments of the present application, the box body 1 may include a box liner 12. The box liner 12 is connected to the inside of the box body 1, that is, the box liner 12 is arranged in the installation space.

[0064] The inside of the box liner 12 has a refrigeration compartment, which is used to store food under a low temperature environment. Wherein, the refrigeration compartment can be a cold storage room, a temperature-changing room, or a freezing room.

[0065] In some embodiments of the present application, a foaming space is formed between the box liner 12 and the box shell 11 , and a heat-insulating layer is provided in the foaming space to achieve heat preservation and heat insulation of the box body 1 .

[0066] In some embodiments of the present application, the heat-insulating layer is a foaming layer. The foaming space is used to inject a foaming material so as to foam the box body 1 , so that a foaming layer is provided between the box liner 12 and the box shell 11 .

[0067] It can be understood that the foam layer plays a role of heat insulation to reduce the heat transfer between the inside of the refrigerator 100 and the outside, thereby improving the heat insulation effect of the refrigeration compartment.

[0068] In some embodiments of the present application, reference Figure 1 , the refrigerator 100 may include a door 2. The door 2 is connected to the housing 11 to open or close the refrigeration compartment.

[0069] In some embodiments of the present application, the door 2 is rotatably connected to the cabinet 1, so that the door 2 and the cabinet 1 are rotatably connected to form an openable and closable structure. The door 2 is rotated to open or close the refrigeration compartment inside the cabinet 1.

[0070] The appearance of the refrigerator 100 is defined by a body 1 having a refrigerating compartment and a door 2 for opening or closing the refrigerating compartment in the body 1 .

[0071] In some embodiments of the present application, an opening communicating with the refrigeration compartment is formed on the cabinet 1. The cabinet door 2 is rotatably connected to the opening of the cabinet shell 11, and the cabinet door 2 is rotated to open or close the refrigeration compartment.

[0072] In some embodiments of the present application, the number of refrigeration compartments inside the box body 1 may be one or more.

[0073] Correspondingly, one or two doors 2 can be provided as required.

[0074] Among them, one door 2 corresponds to one or more refrigeration compartments. Or multiple doors 2 correspond to multiple refrigeration compartments one by one. It should be noted that this application does not limit the number of doors 2 and refrigeration compartments.

[0075] refer to Figure 2 Taking an upright refrigerator as an example, the opening of the box body 1 is arranged at the front side of the box body 1. This arrangement facilitates users to take and put items into the refrigeration compartment through the front opening.

[0076] refer to Figure 2 In some embodiments of the present application, both the box shell 11 and the box liner 12 have front openings, and the front side of the box body 1 is located at the periphery of the front side of the box liner 12 .

[0077] It should be noted that the expressions of up, down, left, right, front and back in this article are all based on the direction when the user is facing the refrigerator when the refrigerator is in use. Among them, the side facing the user when the refrigerator is in use is defined as the front, the opposite side is defined as the back, the vertical direction is the up and down direction, and the horizontal direction is the left and right direction.

[0078] In some embodiments of the present application, reference Figure 3 , Figure 4The box housing 11 may include a box bottom plate 111. The box bottom plate 111 forms the bottom plate of the box body 1.

[0079] In some embodiments of the present application, the box housing 11 may include a box top plate 112. The box top plate 112 forms the top end of the box body 1.

[0080] In some embodiments of the present application, the box housing 11 may include a box side plate 113. The box side plate 113 may be disposed between the box top plate 112 and the box bottom plate 111.

[0081] In some embodiments of the present application, the box housing 11 may include a box rear plate. The box rear plate is arranged opposite to the front opening.

[0082] The box bottom plate 111, the box top plate 112, the box side plates 113 and the box rear plate are combined to form an installation space.

[0083] In some embodiments of the present application, the refrigerator 100 may include a box frame. The box frame is connected between the front side of the box shell 11 and the front side of the box liner 12 to close the box shell 11 and the front side of the box liner 12, so that the box shell 111, the box liner 12 and the box frame are enclosed to form a closed foaming space, which is convenient for setting the foaming layer.

[0084] In some embodiments of the present application, the refrigerator 100 may include a refrigeration system, wherein the refrigeration system is formed by connecting a condenser, a compressor, a capillary tube, and an evaporator through pipelines.

[0085] The refrigerant circulates in the refrigeration system and continuously changes its state, thereby enabling the refrigerator 100 to achieve the purpose of refrigeration.

[0086] Specifically, the refrigeration principle of the refrigerator 100 is as follows: the liquid refrigerant in a low-temperature and low-pressure state evaporates in the evaporator to become a low-temperature and low-pressure refrigerant vapor, while absorbing the heat inside the cabinet 1, so that the ambient temperature is reduced, presenting a refrigeration effect for the refrigerated room. The refrigerant vapor after evaporation in the evaporator is compressed by the compressor 3 to become a high-temperature and high-pressure refrigerant vapor.

[0087] The high-temperature and high-pressure refrigerant vapor carries a large amount of heat and realizes heat exchange with the external air environment through the condenser. After releasing heat to the surrounding air environment, the refrigerant vapor becomes a saturated high-pressure refrigerant, and is restored to a low-temperature and low-pressure liquid refrigerant through the throttling and pressure reduction effect of the capillary tube. It enters the evaporator again to evaporate and enters the next cycle, thereby achieving continuous cooling.

[0088] When the refrigerator is in operation, the temperature in the refrigeration room decreases, and the moisture in the air in the refrigeration room condenses on the inner wall of the refrigeration room (i.e., frost forms on the inner wall of the refrigeration room). After the compressor stops working, the temperature in the refrigeration room slowly rises, causing the frost condensed on the inner wall of the refrigeration room to melt and form condensed water.

[0089] Therefore, in order to discharge the condensed water in the refrigeration room in time and prevent a large amount of condensed water from accumulating in the refrigeration room, in some embodiments of the present application, reference is made to Figure 3 to Figure 6 , the refrigerator 100 may include a drain pipe 4 .

[0090] The drain pipe 4 is used to drain the condensed water in the refrigeration room to the outside of the box body 1, that is, the drain pipe 4 needs to be connected to the outside. In order to reduce the heat exchange of the refrigerator 100 through the drain pipe 4, the drain pipe 4 is partially arranged in the foaming space, so before the refrigerator 100 is foamed, the drain pipe 4 must be pre-installed and fixed on the box body 1.

[0091] In some embodiments of the present application, one end of the drain pipe 4 is connected to the refrigeration compartment, and the other end of the drain pipe 4 is connected to the outside, so that the condensed water in the refrigeration compartment is discharged to the outside of the cabinet 1.

[0092] In some embodiments of the present application, reference Figure 8 The refrigerator 100 may include a mounting hole 3. The mounting hole 3 is opened on the bottom plate 111 for the drainage pipe 4 to pass through.

[0093] In the related art, the drain pipe 4 is usually sealed by sponge when it is inserted into the mounting hole 3. This sealing method requires additional sponge, which is inconvenient to operate and increases the cost. The thickness of the sponge is difficult to control, resulting in poor sealing effect and low stability. During the foaming process of the refrigerator 100, the foaming material is easy to leak from the gap between the drain pipe 4 and the bottom plate 111, that is, foam leakage occurs, resulting in a decrease in the foaming density of the foaming layer, affecting the heat preservation performance of the refrigerator 100, causing the refrigeration system of the refrigerator 100 to run for a long time, and increasing the power consumption of the refrigerator 100.

[0094] In addition, in the related art, the drain pipe 4 and the box bottom plate 111 are not completely fixed. Affected by assembly and foaming pressure, the length of the water outlet end of the drain pipe 4 protruding from the box bottom plate 111 is easily deviated, affecting the assembly of the refrigerator 100.

[0095] In order to ensure the sealing of the drain pipe 4 and the bottom plate 111, in some embodiments of the present application, the refrigerator 100 may include a connecting portion 5. Fig. 9 The connecting portion 5 is protruded on the outer peripheral wall of the drain pipe 4 , and the connecting portion 5 abuts against the end of the mounting hole 3 away from the box liner 12 .

[0096] In some embodiments of the present application, the refrigerator 100 may include an elastic sealing portion 6. The elastic sealing portion 6 is disposed on the outer peripheral wall of the drain pipe 4, and the elastic sealing portion 6 is spaced apart from the connecting portion 5.

[0097] refer to Figure 6 Part of the elastic sealing portion 6 abuts against the side of the box bottom plate 111 facing the box inner tank 12, and the connecting portion 5 abuts against the end of the mounting hole 3 away from the box inner tank 12, so that the box bottom plate 111 is tightly connected between the elastic sealing portion 6 and the connecting portion 5, and then the drain pipe 4 is tightly connected to the box bottom plate 111, avoiding deviation in the length of the water outlet end of the drain pipe 4 protruding from the box bottom plate 111.

[0098] It should be noted that the part of the elastic sealing part 6 abuts against the side of the box bottom plate 111 facing the box liner 12 means that along the orthographic projection direction of the elastic sealing part 6 on the box bottom plate 111, the elastic sealing part 6 includes a part that just covers the mounting hole 3 and a part that exceeds the edge of the mounting hole 3. Among them, at least the part of the elastic sealing part 6 that exceeds the edge of the through hole abuts against the side of the box bottom plate 111 facing the box liner 12.

[0099] In some embodiments of the present application, the distance between the elastic sealing portion 6 and the connecting portion 5 is smaller than the distance between two ends of the mounting hole 3 .

[0100] When assembling, refer to Fig.10 , the drain pipe 4 passes through the mounting hole 3 from top to bottom. When the connecting portion 5 passes through the mounting hole 3 and abuts against the end of the mounting hole 3 away from the box inner liner 12, the distance between the elastic sealing portion 6 and the connecting portion 5 is smaller than the distance between the two ends of the mounting hole 3, so that the elastic sealing portion 6 is deformed by force so that part of the elastic sealing portion 6 abuts against the side of the box bottom plate 111 facing the box inner liner 12, so that the drain pipe 4 is firmly connected to the box bottom plate 111.

[0101] Specifically, since the distance between the elastic sealing portion 6 and the connecting portion 5 is smaller than the distance between the two ends of the mounting hole 3, during assembly, the connecting portion 5 is clamped and fixed to one end of the mounting hole 3, and at the same time, the elastic sealing portion 6 is compressed by force to fit tightly against the side of the box bottom plate 111 toward the box liner 12 to achieve a sealing function.

[0102] It is understandable that the material of the elastic sealing part 6 can be a flexible material so as to be deformable under the action of an external force. In this embodiment, the elastic sealing part 6 is made of PP material.

[0103] In the refrigerator 100 provided in the present application, the elastic sealing portion 6 cooperates with the connecting portion 5 so that the drain pipe 4 is firmly connected to the bottom plate 111 of the box. The elastic sealing portion 6 is elastic and will be compressed and sealed with the bottom plate 111 during assembly. The elastic sealing portion 6 blocks the connection between the foaming space and the gap (the gap between the inner wall of the mounting hole 3 and the drain pipe 4), thereby preventing the foaming material in the foaming space from leaking out of the gap. Compared with the prior art, the sealing effect is good, and the foaming material is prevented from overflowing when the box body 1 is foamed. At the same time, there is no need to add an additional sponge seal, which improves the assembly effect and assembly efficiency, and has the advantages of reducing costs and improving efficiency.

[0104] In some embodiments of the present application, the drain pipe 4, the elastic sealing portion 6 and the connecting portion 5 are integrally injection molded, which is beneficial to improving production efficiency.

[0105] In some embodiments of the present application, reference Figure 11 to Figure 13 , the elastic sealing portion 6 is a conical hollow structure.

[0106] In the axial direction of the drain pipe 4 , the distance between the edge of the elastic sealing portion 6 of the conical hollow structure and the connecting portion 5 is smaller than the distance between the two ends of the mounting hole 3 .

[0107] The elastic sealing portion 6 is of a conical hollow structure, so that the elastic sealing portion 6 has a certain amount of compression when subjected to force in the axial direction of the drain pipe 4 .

[0108] The edge of the elastic sealing portion 6 is interference-fitted with the box bottom plate, which can compensate for the assembly error between the box bottom plate and the box liner, and has wider adaptability.

[0109] When the connecting portion 5 passes through the mounting hole 3 and abuts against the end of the mounting hole 3 away from the box liner 12, the elastic sealing portion 6 is compressed while ensuring that the assembly of the drain pipe 4 is not affected by assembly errors, so that the edge of the elastic sealing portion 6 fits tightly with the box bottom plate 111, thereby improving the sealing performance.

[0110] In some embodiments of the present application, reference Fig.14 , in the axial direction of the drain pipe 4, the length d of the elastic sealing portion 6 is not less than 5 mm.

[0111] If the length of the elastic sealing part 6 is too small, the compression amount of the elastic sealing part 6 will be affected. When there is an assembly error and the assembly error is large, the drain pipe 4 cannot be fastened. In order to ensure that the elastic sealing part 6 has sufficient compression, the length of the elastic sealing part 6 is set to be not less than a certain value. Therefore, d can be greater than or equal to 5mm. d can be greater than or equal to 6mm.

[0112] In some embodiments of the present application, in the axial direction of the drain pipe 4 , the length d of the elastic sealing portion 6 is less than or equal to 15 mm.

[0113] If the length d of the elastic sealing part 6 is too large, it will affect the distance between the inner tank 12 and the bottom plate 111. The larger d is, the larger the distance between the inner tank 12 and the bottom plate 111 is. If the length d of the elastic sealing part 6 is too large, it will affect the installation of the drain pipe. In order to avoid the distance between the inner tank 12 and the bottom plate 111 being too large and save the internal space of the box body 1, the length d of the elastic sealing part 6 is set to be less than a certain value. Therefore, d can be less than or equal to 15mm. d can be less than or equal to 14.5mm.

[0114] Since the elastic sealing part 6 is elastic, it can produce adaptive deformation under the action of extrusion force. Therefore, even if there are assembly errors in the box bottom plate 111 or the drain pipe 4 due to manufacturing reasons, the elastic sealing part 6 can fully eliminate the assembly errors, thereby reducing the production process requirements of the box bottom plate 111 and the drain pipe 4.

[0115] In some embodiments of the present application, in the axial direction of the drain pipe 4 , the length d of the elastic sealing portion 6 is 13.8 mm.

[0116] In some embodiments of the present application, the thickness of the elastic sealing portion 6 is any value between 1.0 mm and 1.2 mm.

[0117] By setting the thickness of the elastic sealing part 6 to any value between 1.0 mm and 1.2 mm, the thickness of the elastic sealing part 6 is within an appropriate range, thereby avoiding unnecessary material waste caused by excessive thickness of the elastic sealing part 6 and avoiding the compression of the elastic sealing part 6 that affects the installation of the drain pipe. At the same time, the elastic sealing part 6 is prevented from being too thin to affect the sealing performance of the elastic sealing part.

[0118] In some embodiments of the present application, reference Figure 17 to Figure 19 , the refrigerator 100 may include a flange 7. The edge of the mounting hole 3 extends in a direction away from the box liner 12 to form the flange 7.

[0119] The connecting portion 5 is connected to an end of the flange 7 away from the box liner 12 .

[0120] It can be understood that by extending the edge of the mounting hole 3 toward the side away from the box liner 12 to form the flange 7, the burrs or burrs generated during demoulding are formed at the flange 7, and the portion of the box bottom plate 111 near the mounting hole 3 will not have burrs or burrs. The portion where the elastic sealing portion 6 contacts the box bottom plate 111 is a smooth plane, avoiding the formation of a gap between the elastic sealing portion 6 and the box bottom plate 111.

[0121] In addition, by providing the flange 7 so that the mounting hole 3 is in the form of a flange hole, the strength of the portion of the box bottom plate 111 close to the mounting hole 3 can be strengthened, and the portion of the box bottom plate 111 close to the mounting hole 3 can be prevented from being easily deformed, thereby improving the structural strength of the connection between the drain pipe 4 and the box bottom plate 111, and thereby improving the stability of the connection between the drain pipe 4 and the box bottom plate 111.

[0122] In some embodiments of the present application, reference Fig.19 The connecting portion 5 may include a clamping plane 51. The clamping plane 51 is connected to an end of the flange 7 away from the box liner 12.

[0123] By providing the clamping plane 51 , the contact area between the connecting portion 5 and the flange 7 is ensured, thereby improving the connection stability.

[0124] In some embodiments of the present application, the connecting portion 5 may include a guide surface 52. The guide surface 52 is arranged obliquely to play a guiding role in the process of the drain pipe 4 passing through the flange hole.

[0125] One end of the guide surface 52 is connected to the clamping plane 51, and the other end thereof is connected to the drain pipe 4. This arrangement allows the connection portion 5 to enter the flanged hole more easily when the drain pipe 4 is passed through the flanged hole, thereby facilitating the installation of the drain pipe 4.

[0126] In some embodiments of the present application, the area of ​​the clamping plane 51 is relatively small, making the installation of the drain pipe 4 more convenient.

[0127] In some embodiments of the present application, in the radial direction of the drain pipe 4, the difference between the maximum size of the connecting portion 5 and the hole diameter of the mounting hole 3 is any value between 3 mm and 4 mm.

[0128] If the difference is too small, the contact area between the connection part 5 and the flange 7 is small, and it is impossible to ensure that the connection part 5 is stably against the end of the flange hole away from the box liner 12. In order to ensure that there is sufficient contact area between the connection part 5 and the flange hole, the difference is set to be greater than or equal to a certain value. Therefore, the difference can be greater than or equal to 3mm. The difference can be greater than or equal to 3.2mm.

[0129] If the difference is too large, when the drain pipe 4 is installed, the connecting portion 5 cannot smoothly penetrate the installation hole 3 to reach the end of the installation hole 3 away from the box liner 12, and the installation of the drain pipe 4 cannot be completed smoothly without damaging the installation hole 3 and the box bottom plate 111. In order to smoothly install the drain pipe 4, the difference is set to be less than or equal to a certain value. Therefore, the difference can be less than or equal to 4mm. The difference can be less than or equal to 3.8mm.

[0130] In some embodiments of the present application, reference Fig. 20At least one notch 71 is arranged at intervals along the circumferential direction on the flange 7. The notch 71 increases the elasticity of the flange hole, making it easier to insert the connection part 5 on the drain pipe 4.

[0131] In some embodiments of the present application, the notch 71 extends from the end of the flange 7 away from the box liner 12 toward the box liner 12. This arrangement facilitates the opening of the notch and avoids reducing the strength of the box bottom plate 111 near the mounting hole 3.

[0132] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0133] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A refrigerator, characterized in that include: A box shell, wherein the box shell includes a box bottom plate; A box liner is arranged inside the box shell, the box liner has a refrigeration chamber, and a foaming space is formed between the box liner and the box shell; A door connected to the box shell to open or close the refrigeration chamber; A mounting hole is provided on the bottom plate of the box; A drain pipe is arranged in the foaming space and penetrates the mounting hole, one end of the drain pipe is connected to the refrigeration chamber, and the other end thereof is connected to the outside; A connecting portion protruding from the outer peripheral wall of the drain pipe, the connecting portion abutting against an end of the mounting hole away from the box liner; The elastic sealing part is arranged on the outer peripheral wall of the drain pipe and is spaced apart from the connecting part. Part of the elastic sealing part is forced to abut against the side of the box bottom plate facing the box inner tank.

2. A refrigerator, characterized in that include: A box shell, wherein the box shell includes a box bottom plate; A box liner is arranged inside the box shell, the box liner has a refrigeration chamber, and a foaming space is formed between the box liner and the box shell; A door connected to the box shell to open or close the refrigeration chamber; A mounting hole is provided on the bottom plate of the box; A drainage pipe is arranged in the foaming space and penetrates the mounting hole, one end of the drainage pipe is connected to the refrigeration compartment, and the other end thereof is connected to the outside; A connecting portion protruding from the outer peripheral wall of the drain pipe; An elastic sealing portion, which is arranged on the outer peripheral wall of the drain pipe and is spaced apart from the connecting portion, wherein the distance between the elastic sealing portion and the connecting portion is smaller than the distance between the two ends of the mounting hole; During assembly, the drain pipe passes through the mounting hole from top to bottom. When the connecting portion passes through the mounting hole and abuts against the end of the mounting hole away from the box inner tank, the elastic sealing portion is deformed by force so that its part abuts against the side of the box bottom plate facing the box inner tank, so that the drain pipe is firmly connected to the box bottom plate.

3. The refrigerator according to claim 1 or 2, characterized in that: The elastic sealing portion is a conical hollow structure.

4. The refrigerator according to claim 3, characterized in that: In the axial direction of the drain pipe, the distance between the edge of the elastic sealing portion and the connecting portion is smaller than the distance between the two ends of the mounting hole.

5. The refrigerator according to claim 3, characterized in that: In the axial direction of the drain pipe, the length of the elastic sealing portion is not less than 5 mm.

6. The refrigerator according to claim 1 or 2, characterized in that: The edge of the mounting hole extends in a direction away from the box liner to form a flange.

7. The refrigerator according to claim 6, characterized in that: The connecting portion comprises a clamping plane, and the clamping plane is connected to an end of the flange away from the box liner.

8. The refrigerator according to claim 7, characterized in that: The connecting portion comprises a guide surface, one end of which is connected to the clamping plane, and the other end of which is connected to the drain pipe.

9. The refrigerator according to claim 6, characterized in that: At least one notch is arranged on the flange at intervals along the circumferential direction.

10. The refrigerator according to claim 3, characterized in that: The thickness of the elastic sealing portion is any value between 1.0 and 1.2 mm.

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