Refrigerator

Abstract

The utility model relates to a refrigerator. The refrigerator comprises a refrigerator body and a refrigerator cover, the first refrigerator container and the second refrigerator container are adjacently arranged in the refrigerator body up and down; a first air supply duct is arranged in the first air duct assembly; a second air supply duct is arranged in the second air duct assembly; an evaporation bin is arranged at the bottom of the first refrigerator container and located below the bottom of the first storage chamber, and the first air supply duct and the second air supply duct communicate with the rear end of the evaporation bin. An air return opening is formed in the top face of the front end of the evaporation bin and communicates with the first storage chamber and the evaporation bin. An air return pipe is arranged between the first refrigerator container and the second refrigerator container and communicates with the front end area of the evaporation bin and the second storage chamber, and therefore an air path circulation path between the first air duct assembly and the first storage chamber can be shortened, and an air path circulation path between the second air duct assembly and the second storage chamber can be shortened. The air supply efficiency in the first storage chamber and the second storage chamber is improved, and the refrigeration efficiency of the whole machine is improved.

Description

Technical Field

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

[0002] A refrigerator is a container that uses the phase change of a refrigerant to create a low-temperature environment for storing food. It is one of the indispensable household appliances for people's home life. As people's living standards improve, the requirements for refrigerators are getting higher and higher.

[0003] In the related air-cooled refrigerator, the refrigerator generally includes a box body and a refrigerator liner and a freezer liner arranged in the box body, wherein a refrigerator chamber is formed in the refrigerator liner and a freezer chamber is formed in the freezer liner. A refrigerator air duct assembly is arranged on the back side of the refrigerator liner, and cold air can be transported to the refrigerator chamber for refrigeration through the cold air supply duct in the cold air duct assembly. A freezer air duct assembly is arranged on the back side of the freezer liner, and cold air can be transported to the freezer chamber for refrigeration through the cold air supply duct in the freezer air duct assembly.

[0004] At present, in the existing refrigeration and freezing air-cooling refrigerators, the evaporator and the freezing air duct assembly are usually installed on the back of the freezer tank, and the evaporator is arranged on the back side of the freezing air duct assembly, which occupies a large storage space inside the freezer tank. At the same time, the refrigeration air circuit has problems such as long path and large resistance, which easily leads to low air supply efficiency in the refrigerator room and low refrigeration efficiency of the whole machine. Utility Model Content

[0005] The utility model aims to provide a refrigerator to optimize the refrigeration structure of the refrigerator in the related art, increase the usable volume of the refrigerator, and shorten the air circulation path.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] According to one aspect of the utility model, the utility model provides a refrigerator, which includes: a box body, which forms an outer shell of the refrigerator; a first box liner and a second box liner, which are arranged in the box body in an upper and lower adjacent manner, and the first box liner is arranged above the top of the second box liner; a first storage compartment is formed in the first box liner, and a second storage compartment is formed in the second box liner; a first air duct component is arranged in the first box liner and on the back side of the first storage compartment, and a first air supply duct is formed in the first air duct component; a second air duct component is arranged in the second box liner and on the back side of the second storage compartment, and a first air supply duct is formed in the second air duct component A second air supply duct is formed; wherein an evaporation bin is formed at the bottom of the first box, the evaporation bin is arranged below the bottom of the first storage compartment, and an evaporator is arranged in the evaporation bin; the first air supply duct and the second air supply duct are respectively connected to the rear end of the evaporation bin; a return air port is arranged on the top surface of the front end of the evaporation bin, and the return air port is connected to the first storage compartment and the evaporation bin; a return air duct is arranged between the first box and the second box, the return air duct is arranged below the bottom of the front end of the evaporation bin, the top end of the return air duct is connected to the front end area of ​​the evaporation bin, and the bottom end of the return air duct is connected to the second storage compartment.

[0008] In some embodiments of the present application, one or more first air supply outlets are provided on the front side wall of the first air duct assembly, and the first air supply outlets connect the first air supply duct and the first storage compartment; the bottom end of the first air supply duct connects to the rear end area of ​​the evaporation bin.

[0009] In some embodiments of the present application, one or more second air supply outlets are provided on the front side wall of the second air duct assembly, and the second air supply outlets connect the second air supply duct and the second storage compartment; the top end of the second air supply duct connects to the rear end area of ​​the evaporation bin.

[0010] In some embodiments of the present application, a fan bin is formed on the rear end side of the evaporation bin, an air supply fan is provided in the fan bin, and the fan bin is connected to the rear end area of ​​the evaporation bin; the first air supply duct and the second air supply duct are respectively connected to the fan bin.

[0011] In some embodiments of the present application, the evaporation bin is arranged at an angle; in the direction from the front side of the box body toward the rear side, the bottom surface of the evaporation bin is arranged to extend downward at an angle.

[0012] In some embodiments of the present application, the evaporator is supported on the bottom surface of the evaporation bin; in the direction from front to back, the evaporator is arranged to extend downward at an angle.

[0013] In some embodiments of the present application, a drain port is provided at the rear end of the evaporation bin, a drain pipe is provided in the box body, the drain pipe is provided outside the first box liner and the second box liner, and the drain pipe is connected to the drain port.

[0014] In some embodiments of the present application, the drain outlet is arranged on the bottom surface of the rear end of the evaporation bin; a first connecting pipe is provided between the bottom of the first box body and the top surface of the second box body, and the first connecting pipe is connected to the drain outlet; a drainage cavity is recessed in the top area of ​​the second air duct assembly, and the drainage cavity is connected to the first connecting pipe; a through hole connected to the drainage cavity is provided on the back side of the second box body, and the top end of the drain pipe passes through the through hole and extends into the drainage cavity, and extends into the first connecting pipe to be connected to the drain outlet.

[0015] In some embodiments of the present application, a second connecting pipe is provided between the bottom of the first box and the top of the second box, and the bottom end of the second air supply duct is connected to the second connecting pipe and is connected to the rear end of the evaporation bin through the second connecting pipe.

[0016] In some embodiments of the present application, the first box liner is a freezer box liner, and the second box liner is a refrigerator box liner; the first storage compartment is a freezer compartment, and the second storage compartment is a refrigerator compartment.

[0017] The embodiments of the present invention have the following advantages and positive effects:

[0018] In the refrigerator of the embodiment of the utility model, a first box liner and a second box liner are arranged in the box body, the first box liner forms a first storage compartment, the second box liner forms a second storage compartment, a first air duct assembly is arranged on the back side of the first storage compartment, and a second air duct assembly is arranged on the back side of the second storage compartment; at the same time, the evaporation bin is arranged below the bottom of the first box liner, which is conducive to reducing the space occupied by the first air duct assembly inside the first box liner, thereby increasing the usable volume of the refrigerator; at the same time, the first air supply duct in the first air duct assembly is used to connect the rear end of the evaporation bin and the first storage compartment, and the air supply duct is used to connect the rear end of the evaporation bin and the first storage compartment. The second air supply duct in the second air duct assembly is connected to the rear end of the evaporation bin and the second storage compartment; the first storage compartment and the front end area of ​​the delivery bin are connected by the return air port on the front end top surface of the evaporation bin, and the second storage compartment and the front end area of ​​the delivery bin are connected by the return air duct between the first box liner and the second box liner, thereby shortening the air circulation path between the first air duct assembly and the first storage compartment and shortening the air circulation path between the second air duct assembly and the second storage compartment, which is beneficial to improving the air supply efficiency in the first storage compartment and the second storage compartment, and improving the refrigeration efficiency of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a refrigerator according to an embodiment of the utility model.

[0020] Figure 2 yes Figure 1 Schematic diagram of the internal structure.

[0021] Figure 3 yes Figure 2 Schematic diagram of the structure from another perspective.

[0022] Figure 4 yes Figure 3 Schematic diagram of the structure from another perspective.

[0023] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of area A in the middle.

[0024] Figure 6 yes Figure 2 Cross-sectional view along the BB axis.

[0025] Figure 7 yes Figure 6 Schematic diagram of the enlarged structure of the C area in the middle.

[0026] Figure 8 yes Figure 6 Schematic diagram of the structure in another state.

[0027] Fig. 9 yes Figure 6 Structural schematic diagrams in other embodiments.

[0028] Fig.10 yes Fig. 9 Schematic diagram of the enlarged structure of the D area in the middle.

[0029] The reference numerals are as follows: 1. box body; 11. first box door; 12. second box door; 13. evaporator; 14. drain pipe; 2. first box liner; 20. first storage compartment; 21. evaporation chamber; 211. return air outlet; 22. air supply fan; 3. second box liner; 30. second storage compartment; 31. through hole; 4. second air duct assembly; 41. second air supply duct; 42. drain chamber; 5. connecting pipe; 51. first connecting pipe; 52. second connecting pipe; 6. return air duct. DETAILED DESCRIPTION

[0030] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element 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 application.

[0032] In addition, 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, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of this application, 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected 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 this application can be understood according to specific circumstances.

[0034] At present, in the existing refrigeration and freezing air-cooling refrigerators, the evaporator and the freezing air duct assembly are usually installed on the back of the freezer tank, and the evaporator is arranged on the back side of the freezing air duct assembly, which occupies a large storage space inside the freezer tank. At the same time, the refrigeration air circuit has problems such as long path and large resistance, which easily leads to low air supply efficiency in the refrigerator room and low refrigeration efficiency of the whole machine.

[0035] For the convenience of description, unless otherwise specified, the directions of up, down, left, right, front and back in this article are all based on the state of the refrigerator when it is in use, with the refrigerator door being the front and the opposite direction being the back, the vertical direction being the up and down direction, and the horizontal direction being the left and right direction.

[0036] Figure 1 It is a structural schematic diagram of a refrigerator according to an embodiment of the utility model. Figure 2 yes Figure 1 Schematic diagram of the internal structure. Figure 3 yes Figure 2 Schematic diagram of the structure from another perspective.

[0037] See also Figures 1 to 3As shown, the refrigerator of the embodiment of the utility model mainly includes a box body 1 and a refrigeration system arranged in the box body 1.

[0038] The box body 1 may be a rectangular hollow structure. The box body 1 is configured as a shell outside the refrigerator. It should be noted that in other embodiments, the shape of the box body 1 may be designed according to requirements, and may also be a hollow shell structure of other shapes.

[0039] The interior of the box body 1 can be defined as a plurality of mutually separated storage compartments, each of which can be used as an independent storage space to meet different refrigeration requirements such as freezing, refrigeration and temperature change according to different types of food, and to perform storage.

[0040] The front side of the cabinet 1 may be provided with a cabinet door, which is used to open and close the storage compartment. The cabinet door and the cabinet 1 may be connected by a hinge, so that the cabinet door of the refrigerator can rotate around the axis of the hinge to open and close the refrigerator cabinet door, thereby opening and closing the corresponding storage compartment. It is understandable that a plurality of cabinet doors may be provided, and they are arranged one by one with the storage compartments. Alternatively, a plurality of cabinet doors may open and close a storage compartment at the same time.

[0041] A box liner may be provided in the box body 1, and a storage compartment is formed in the box liner. It is understandable that a plurality of box liner may be provided in the box body 1, and one or more storage compartments may be formed in each box liner.

[0042] See also Figures 1 to 3 As shown, in some embodiments, a first box 2 and a second box 3 are arranged adjacent to each other in the upper and lower parts of the box body 1, a first storage compartment 20 is formed in the first box 2, and a second storage compartment 30 is formed in the second box 3. The first box 2 is arranged above the top of the second box 3, that is, the first storage compartment 20 is arranged above the top of the second storage compartment 30 at intervals.

[0043] In some embodiments, the first box 2 may be a freezer box, and the first storage compartment 20 may be a freezer compartment. The second box 3 may be a refrigerator box, and the second storage compartment 30 may be a refrigeration compartment.

[0044] See also Figures 1 to 3 As shown, in some embodiments, the cabinet door may include a first cabinet door 11 and a second cabinet door 12, which are respectively arranged at the front side of the cabinet body 1, the first cabinet door 11 is arranged corresponding to the first cabinet 2 and the first storage compartment 20, and the second cabinet door 12 is arranged corresponding to the second cabinet 3 and the refrigerating compartment. The first cabinet door 11 is used to open and close the first cabinet 2 and the first storage compartment 20, and the second cabinet door 12 is used to open and close the second cabinet 3 and the second storage compartment 30.

[0045] In some embodiments, a refrigeration system may be provided in the box 1, and the refrigeration system is used to provide cold air inside the refrigerator to maintain a low temperature environment in each storage compartment. The refrigeration system includes a compressor, a condenser (not shown in the figure), an evaporator 13 (not shown in the figure), a capillary tube (not shown in the figure), etc. The compressor, the condenser, the capillary tube, and the evaporator 13 are sequentially connected to form a refrigeration circuit, and the refrigerant circulates in the refrigeration circuit to achieve refrigeration inside the box 1.

[0046] See also Figures 1 to 3 As shown, in some embodiments, a compressor compartment may be provided in the box body 1, and the compressor and the condenser are installed in the compressor compartment. The compressor compartment is arranged on the back side of the bottom of the second box 3. A heat dissipation fan (not shown in the figure) is provided in the compressor compartment, and the heat dissipation fan is used to provide wind power, and the wind generated by the heat dissipation fan can dissipate heat and cool the compressor.

[0047] Figure 4 yes Figure 3 Schematic diagram of the structure from another perspective. Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of area A in the middle. Figure 6 yes Figure 2 Cross-sectional view along the BB axis. Figure 7 yes Figure 6 Schematic diagram of the enlarged structure of the C area in the middle. Figure 8 yes Figure 6 Schematic diagram of the structure in another state.

[0048] See also Figures 2 to 8 As shown, in some embodiments, the box body 1 may be provided with an evaporation bin 21, and the evaporator 13 is arranged in the evaporation bin 21. The evaporator 13 is used to cool the evaporation bin 21, so that a large amount of cold air is formed in the evaporation bin 21.

[0049] In some embodiments, the evaporation chamber 21 may be disposed in the bottom area of ​​the first tank 2, that is, the evaporation chamber 21 is disposed below the bottom of the first storage compartment 20. The evaporation chamber 21 and the first storage compartment 20 are separated from each other.

[0050] In some embodiments, the evaporation bin 21 and the first storage compartment 20 may be separated by a heat insulation board, thereby preventing the evaporation bin 21 from affecting the temperature in the first storage compartment 20 .

[0051] In some embodiments, the first storage compartment 20 can be configured as a freezer compartment, thereby reducing the effect of the evaporation bin 21 on the temperature in the first storage compartment 20. It should be noted that in other embodiments, the first storage compartment 20 can also be configured as a refrigerator compartment or other storage compartments.

[0052] See also Figures 2 to 8As shown, in some embodiments, a first air duct assembly (not shown in the figure) may be provided on the rear wall inside the first box 2, and the first air duct assembly is arranged vertically, and the first air duct assembly is arranged on the back side of the first storage compartment 20. A first air supply duct is formed in the first air duct assembly, and the first air supply duct is connected to the first storage compartment 20. At the same time, the bottom end of the first air supply duct is connected to the rear end area of ​​the evaporation bin 21, so that the cold air in the evaporation bin 21 can be transported into the first storage compartment 20 through the first air supply duct, so as to realize the refrigeration of the first storage compartment 20. Since the evaporation bin 21 is not arranged on the back side of the first air duct assembly, the thickness of the first air duct assembly can be effectively reduced, which is conducive to reducing the space occupied by the first air duct assembly inside the first box 2, thereby increasing the usable volume of the refrigerator.

[0053] In some embodiments, a first air supply port is provided on the front wall of the first air duct assembly, and one or more first air supply ports may be provided, and the plurality of first air supply ports are arranged in intervals up and down or left and right. The first air supply port connects the first air supply duct and the first storage compartment 20. Therefore, the cold air in the evaporation bin 21 can enter the first storage compartment 20 through the first air supply duct and the first air supply port in sequence, thereby realizing refrigeration in the first storage compartment 20.

[0054] Fig. 9 yes Figure 6 Structural schematic diagrams in other embodiments. Fig.10 yes Fig. 9 Schematic diagram of the enlarged structure of the D area in the middle.

[0055] See also Figures 2 to 10 As shown, in some embodiments, a second air duct assembly 4 may be provided on the rear wall inside the second box 3, and the second air duct assembly 4 is arranged vertically, and the second air duct assembly 4 is arranged on the back side of the second storage compartment 30. A second air supply duct 41 is formed in the second air duct assembly 4, and the second air supply duct 41 is connected to the second storage compartment 30. At the same time, the top of the second air supply duct 41 is connected to the rear end area of ​​the evaporation bin 21, so that the cold air in the evaporation bin 21 can be transported into the second storage compartment 30 through the second air supply duct 41, so as to realize the refrigeration of the second storage compartment 30. Since the evaporation bin 21 is not arranged on the back side of the first air duct assembly in the first box 2, it will not occupy the space inside the second box 3, and can also effectively reduce the thickness of the second air duct assembly 4, which is conducive to reducing the space occupied by the second air duct assembly 4 inside the second box 3, thereby increasing the usable volume of the refrigerator.

[0056] In some embodiments, a connecting pipe 5 may be provided between the bottom of the first box 2 and the top of the second box 3, the top of the second air supply duct 41 is connected to the connecting pipe 5, and the top of the second air supply duct 41 is connected to the rear end of the evaporation bin 21 through the connecting pipe 5.

[0057] In some embodiments, a second air supply port (not shown in the figure) may be provided on the front wall of the second air duct assembly 4. One or more second air supply ports may be provided, and the plurality of second air supply ports are arranged in an up-down or left-right interval. The second air supply port is connected to the second air supply duct 41 and the second storage compartment 30. Therefore, the cold air in the evaporation bin 21 can sequentially pass through the second air supply duct 41 and the second air supply port into the second storage compartment 30, thereby realizing refrigeration in the second storage compartment 30.

[0058] See also Figures 2 to 8 As shown, in some embodiments, a fan compartment (not shown in the figure) may be formed at the rear end side of the evaporation bin 21, and an air supply fan 22 is provided in the fan compartment, and the air supply fan 22 is used to provide wind power. The fan compartment is connected to the rear end area of ​​the evaporation bin 21, and at the same time, the bottom end of the first air supply duct and the top end of the second air supply duct 41 are respectively connected to the fan compartment. When the air supply fan 22 is running, the fan blades rotate to generate airflow and then generate wind power. The wind power of the air supply fan 22 can extract the cold air in the evaporation bin 21, and transport the cold air to the first air supply duct and the second air supply duct 41 respectively, and then transport the cold air to the first storage compartment 20 and the second storage compartment 30 respectively, so as to realize refrigeration in the first storage compartment 20 and the second storage compartment 30.

[0059] In some embodiments, the air supply fan 22 may be a centrifugal fan, such as an ultra-thin centrifugal fan, which can achieve the effect of increasing the usable volume. It should be noted that in other embodiments, the air supply fan 22 may also be a cross-flow fan.

[0060] In some embodiments, a first damper (not shown) may be provided at the connection between the bottom end of the first air supply duct and the fan compartment, and the first damper can open and close the first air supply duct. When the fan is running and the first damper opens the first air supply duct, the cold air in the evaporation compartment 21 can enter the first storage compartment 20 through the evaporation compartment 21, the first air supply duct, and the first air supply port in sequence, thereby realizing refrigeration in the first storage compartment 20. When the first damper closes the first air supply duct, refrigeration in the first storage compartment 20 stops. It should be noted that in other embodiments, the first damper may also be arranged at other positions in the first air supply duct.

[0061] In some embodiments, a second damper (not shown) may be provided at the connection between the top of the second air supply duct 41 and the fan compartment, and the second damper can open and close the second air supply duct 41. When the fan is running and the second damper opens the second air supply duct 41, the cold air in the evaporation compartment 21 can enter the second storage compartment 30 through the evaporation compartment 21, the second air supply duct 41, and the second air supply port in sequence, thereby realizing refrigeration in the second storage compartment 30. When the second damper closes the second air supply duct 41, refrigeration in the second storage compartment 30 stops. It should be noted that in other embodiments, the second damper may also be arranged at other positions of the second air supply duct 41.

[0062] See also Figures 7 and 8 As shown, in some embodiments, a return air port 211 may be provided on the top surface of the front end of the evaporation bin 21, and the return air port 211 connects the first storage compartment 20 and the front end area of ​​the evaporation bin 21. Therefore, when the cold air in the evaporation bin 21 is transported into the first storage compartment 20 through the first air supply duct, the air in the first storage compartment 20 can return to the evaporation bin 21 through the return air port 211, contact the front end of the evaporator 13 to form cold air again, and then form a refrigeration air circulation of the first storage compartment 20. Compared with the existing solution of setting the evaporation bin 21 on the back side of the air duct assembly, this solution can greatly shorten the return air path of the first storage compartment 20, reduce the return air resistance of the first storage compartment 20, effectively enhance the air circulation efficiency of the first storage compartment 20, and then improve the overall refrigeration efficiency.

[0063] In some embodiments, the return air vent 211 can extend in a long strip shape, and the return air vent 211 can be arranged to extend horizontally in the left and right directions of the box body 1, so that the return air vent 211 forms a wide air vent structure, which improves the return air efficiency of the first storage compartment 20 and improves the problem of uneven frosting of the evaporator 13.

[0064] See also Figures 7 and 8 As shown, in some embodiments, a return air duct 6 may be provided between the first box 2 and the second box 3. The return air duct 6 is arranged below the bottom of the front end of the evaporation bin 21, the top end of the return air duct 6 is connected to the front end area of ​​the evaporation bin 21, and the bottom end of the return air duct 6 is connected to the top area of ​​the second storage compartment 30. Therefore, when the cold air in the evaporation bin 21 is transported into the second storage compartment 30 through the second air supply duct 41, the air in the second storage compartment 30 can be returned to the evaporation bin 21 through the return air duct 6, and contact with the front end of the evaporator 13 to re-form cold air, thereby forming a refrigeration air circulation of the second storage compartment 30. Compared with the existing solution of arranging the evaporation bin 21 on the back side of the air duct assembly, this solution can greatly shorten the return air path of the second storage compartment 30, reduce the return air resistance of the second storage compartment 30, effectively enhance the air circulation efficiency of the second storage compartment 30, and thereby improve the overall refrigeration efficiency.

[0065] In some embodiments, the return air duct 6 can extend in a long strip shape, and the return air duct 6 can be arranged to extend horizontally in the left and right directions of the box body 1, so that the return air duct 6 forms a wide duct structure, which improves the return air efficiency of the second storage compartment 30 and improves the problem of uneven frosting of the evaporator 13.

[0066] See also Figures 7 and 8 As shown, in some embodiments, the evaporation bin 21 can be arranged to extend downwardly at an angle, and the bottom surface of the evaporation bin 21 is arranged to extend downwardly at an angle in the direction from the front side to the rear side of the cabinet 1. Therefore, when the evaporator 13 is supported on the bottom surface of the evaporation bin 21, the evaporator 13 is arranged to extend downwardly at an angle in the direction from the front to the rear. When the evaporator 13 defrosts, the defrosting water generated by the evaporator 13 can flow along the bottom surface of the evaporation bin 21 to the rear end of the evaporation bin 21, and be discharged from the rear end of the evaporation bin 21 to the outside of the cabinet 1.

[0067] In some embodiments, a drain outlet (not shown) may be provided at the rear end of the evaporation bin 21, a drain pipe 14 may be provided in the box body 1, the drain pipe 14 is provided outside the first box 2 and the second box 3, the drain pipe 14 is vertically extended, the top end of the drain pipe 14 is connected to the drain outlet, the bottom end of the drain pipe 14 extends downward into the press bin, and then the defrost water in the evaporation bin 21 is discharged through the drain outlet and the drain pipe 14.

[0068] In some embodiments, the drain port can be arranged on the bottom surface of the rear end of the evaporation chamber 21, that is, arranged on the bottom surface of the first tank 2. The top end of the drain pipe 14 extends into the bottom of the first tank 2 and communicates with the drain port. It should be noted that in other embodiments, the drain port can also be arranged on the rear end wall of the evaporation chamber 21, and the top end of the drain pipe 14 can also extend from the rear wall of the first tank 2 and communicate with the drain port.

[0069] See also Figures 4 to 8 As shown, in some embodiments, the drain port can be arranged in the top opening of the connecting pipe 5, that is, the drain port is connected to the connecting pipe 5. At the same time, the rear wall of the second box 3 is provided with a through hole 31, and the drain pipe 14 is arranged on the back side of the second box 3 in an upward and downward extending manner. The top end of the drain pipe 14 extends into the through hole 31 and extends into the connecting pipe 5 to be connected to the drain port. Therefore, the drain pipe 14 can be arranged on the back side and inside of the second box 3 without direct contact with the first box 2. When the second box 3 is a refrigerated box, that is, the second storage compartment 30 is a refrigerated compartment, the icing problem of the drain pipe 14 can be ignored, and there is no need to install a heating wire on the drain pipe 14 to prevent icing.

[0070] See also Figures 9 and 10As shown, in some embodiments, the connecting pipe 5 between the bottom of the first tank 2 and the top of the second tank 3 may include two connecting pipes, the two connecting pipes 5 are respectively a first connecting pipe 51 and a second connecting pipe 52. The first connecting pipe 51 is used for drainage, and the second connecting pipe 52 is used for conveying cold air.

[0071] In some embodiments, the drain port can be arranged in the top opening of the first connecting pipe 51, that is, the drain port is connected to the first connecting pipe 51. At the same time, the top area of ​​the second air duct assembly 4 is recessed with a drain cavity 42, and the drain cavity 42 is connected to the first connecting pipe 51. The top end of the first drain pipe 14 extends through the through hole 31 and is arranged in the drain cavity 42, and extends into the first connecting pipe 51 to be connected to the drain port, and then the drain pipe 14 can be arranged on the back side of the second box 3 and in the drain cavity 42 of the second air duct assembly 4 inside the second box 3. When the second storage compartment 30 is a refrigerator, the problem of icing of the drain pipe 14 can be ignored.

[0072] In some embodiments, the top end of the second air supply duct 41 may be connected to the second connecting pipe 52 , and the top end of the second air supply duct 41 may be connected to the rear end of the evaporation bin 21 through the second connecting pipe 52 .

[0073] Based on the above technical solution, the embodiment of the utility model has at least the following advantages and positive effects:

[0074] In the refrigerator of the embodiment of the utility model, a first box liner 2 and a second box liner 3 are arranged in the box body 1, a first storage compartment 20 is formed in the first box liner 2, and a second storage compartment 30 is formed in the second box liner 3. A first air duct assembly is provided on the back side of the first storage compartment 20, and a second air duct assembly 4 is provided on the back side of the second storage compartment 30; at the same time, the evaporation bin 21 is arranged below the bottom of the first box liner 2, which is conducive to reducing the space occupied by the first air duct assembly inside the first box liner 2, thereby increasing the usable volume of the refrigerator; at the same time, the first air supply duct in the first air duct assembly is used to connect the rear end of the evaporation bin 21 and the first storage compartment 20, and the second ... The second air supply duct 41 in the duct assembly 4 is connected to the rear end of the evaporation bin 21 and the second storage compartment 30; the first storage compartment 20 and the front end area of ​​the delivery bin are connected by the return air port 211 on the front end top surface of the evaporation bin 21, and the second storage compartment 30 and the front end area of ​​the delivery bin are connected by the return air duct 6 between the first box liner 2 and the second box liner 3, thereby shortening the air circulation path between the first air duct assembly and the first storage compartment 20 and shortening the air circulation path between the second air duct assembly 4 and the second storage compartment 30, which is beneficial to improving the air supply efficiency in the first storage compartment 20 and the second storage compartment 30, and improving the refrigeration efficiency of the whole machine.

[0075] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A refrigerator, characterized in that: include: A box body, which forms an outer shell of the refrigerator; A first box and a second box are arranged adjacent to each other in the box body, the first box is arranged above the top of the second box; a first storage compartment is formed in the first box, and a second storage compartment is formed in the second box; a first air duct assembly, disposed in the first box and on the back side of the first storage compartment, wherein a first air supply duct is formed in the first air duct assembly; a second air duct assembly, disposed in the second box and on the back side of the second storage compartment, wherein a second air supply duct is formed in the second air duct assembly; The bottom of the first box is formed with an evaporation chamber, the evaporation chamber is arranged below the bottom of the first storage compartment, and an evaporator is arranged in the evaporation chamber; The first air supply duct and the second air supply duct are respectively connected to the rear end of the evaporation chamber; A return air port is provided on the top surface of the front end of the evaporation bin, and the return air port is connected with the first storage compartment and the evaporation bin; A return air duct is provided between the first box and the second box, and the return air duct is arranged below the bottom of the front end of the evaporation bin, the top end of the return air duct is connected to the front end area of ​​the evaporation bin, and the bottom end of the return air duct is connected to the second storage compartment.

2. The refrigerator according to claim 1, characterized in that: One or more first air supply outlets are provided on the front side wall of the first air duct assembly, and the first air supply outlets are connected to the first air supply duct and the first storage compartment; the bottom end of the first air supply duct is connected to the rear end area of ​​the evaporation bin.

3. The refrigerator according to claim 1, characterized in that: One or more second air supply outlets are provided on the front side wall of the second air duct assembly, and the second air supply outlets are connected to the second air supply duct and the second storage compartment; the top end of the second air supply duct is connected to the rear end area of ​​the evaporation bin.

4. The refrigerator according to claim 1, characterized in that: A fan compartment is formed on the rear end side of the evaporation compartment, an air supply fan is arranged in the fan compartment, and the fan compartment is connected to the rear end area of ​​the evaporation compartment; The first air supply duct and the second air supply duct are respectively communicated with the fan compartment.

5. The refrigerator according to claim 1, characterized in that: The evaporation bin is arranged in an inclined manner; in the direction from the front side of the box body toward the rear side, the bottom surface of the evaporation bin is arranged to extend downward in an inclined manner.

6. The refrigerator according to claim 5, characterized in that: The evaporator is supported on the bottom surface of the evaporation bin; in the direction from front to back, the evaporator is arranged to extend downward in an inclined manner.

7. The refrigerator according to claim 5, characterized in that: A drain port is provided at the rear end of the evaporation chamber, a drain pipe is provided in the box body, the drain pipe is provided outside the first box liner and the second box liner, and the drain pipe is communicated with the drain port.

8. The refrigerator according to claim 7, characterized in that: The drain port is arranged on the bottom surface of the rear end of the evaporation bin; A first connecting pipe is provided between the bottom of the first box and the top surface of the second box, and the first connecting pipe is connected to the drain port; a drainage cavity is recessed in the top area of ​​the second air duct assembly, and the drainage cavity is connected to the first connecting pipe; A through hole communicating with the drainage cavity is provided on the back side of the second box, and the top end of the drainage pipe extends through the through hole into the drainage cavity and into the first communicating pipe to communicate with the drainage port.

9. The refrigerator according to claim 1, characterized in that: A second connecting pipe is provided between the bottom of the first box and the top of the second box, and the bottom end of the second air supply duct is connected to the second connecting pipe and is connected to the rear end of the evaporation bin through the second connecting pipe.

10. The refrigerator according to claim 1, characterized in that: The first box liner is a freezer box liner, and the second box liner is a refrigerator box liner; The first storage compartment is a freezer compartment, and the second storage compartment is a refrigerator compartment.

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