Refrigerator

Abstract

The embodiment of the utility model relates to the technical field of refrigeration equipment, in particular to a refrigerator. According to the refrigerator, the evaporator module is arranged in the refrigerator container, the gas flowing path between the evaporator and the storage cavity can be shortened, and the refrigerating efficiency is improved; according to the evaporator module, the first heat insulation plate is arranged above the evaporator, and the second heat insulation plate is arranged below the evaporator, so that the heat insulation and heat preservation performance of the evaporation cavity is improved, heat entering the evaporation cavity from the external environment can be reduced, the working load of the compressor is reduced, and energy consumption is reduced. And through the arrangement of a first heat insulation plate and a second heat insulation plate, the influence of the defrosting heat of the evaporator on the first storage cavity and the second storage cavity can be reduced, and the situation that the storage quality is influenced due to the fact that the evaporator generates supercooling on the first storage cavity and the second storage cavity can be avoided. The thickness of the second heat insulation plate is larger than that of the part, located on the front side of the evaporator, of the first heat insulation plate, so that the thickness of the second heat insulation plate is large, and the influence of evaporator defrosting heat on the storage cavity is reduced.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, and more particularly to a refrigerator. Background Technology

[0002] A refrigerator, as a refrigeration device, keeps food or other items stored inside at a low temperature. A refrigerator contains an evaporator and a fan, and is constructed to form an evaporation chamber to house the evaporator. The fan drives air to circulate between the evaporation chamber and the storage compartment, thereby lowering the temperature of the storage compartment.

[0003] In related technologies, the poor thermal insulation performance of the evaporation chamber affects the temperature of the storage room. Utility Model Content

[0004] This application provides a refrigerator to solve the technical problem of poor thermal insulation performance of the evaporator chamber, which affects the temperature of the storage compartment.

[0005] In a first aspect, embodiments of this application provide a refrigerator, which includes:

[0006] The inner box is constructed to form a storage compartment with an opening on the front; a central crossbeam is fixed to the front of the inner box.

[0007] An evaporator module is fixed inside the cabinet and located behind the central crossbeam; the evaporator module divides the storage compartment into a first storage cavity and a second storage cavity, the first storage cavity being located at the top of the evaporator module and the second storage cavity being located at the bottom of the evaporator module; the evaporator module includes:

[0008] The outer casing is fixed to the rear side of the middle crossbeam;

[0009] The evaporator is installed inside the outer casing.

[0010] A first heat insulation plate is fixed inside the outer casing; a portion of the first heat insulation plate contacts the top surface of the evaporator, and the first heat insulation plate extends to the front side of the evaporator;

[0011] The second heat insulation plate is fixed inside the outer casing and located below the evaporator; the thickness of the second heat insulation plate is greater than the thickness of the portion of the first heat insulation plate located on the front side of the evaporator.

[0012] An evaporation chamber is formed between the second heat insulation plate and the first heat insulation plate, and the evaporation chamber is connected to the first storage chamber and the second storage chamber respectively.

[0013] In this embodiment, the evaporator module is disposed within the casing, which shortens the gas flow path between the evaporator and the storage cavity, improving refrigeration efficiency. The evaporator module is located behind the central crossbeam to utilize the space behind the crossbeam. A first heat insulation plate is disposed above the evaporator, and a second heat insulation plate is disposed below the evaporator, improving the heat insulation and thermal insulation performance of the evaporation chamber. This reduces the amount of heat entering the evaporation chamber from the external environment, thereby reducing the workload of the compressor and reducing energy consumption. Furthermore, the placement of the first and second heat insulation plates reduces the impact of the defrosting heat from the evaporator on the first and second storage cavities, and prevents the evaporator from overcooling the first and second storage cavities, thus affecting storage quality.

[0014] Of course, installing a first heat insulation plate above the evaporator and a second heat insulation plate below it can also improve the protection of the evaporator and reduce damage from external forces. The installation of the first and second heat insulation plates also helps to absorb and isolate noise and vibration, reducing the operating noise of the refrigerator.

[0015] The thickness of the second insulation plate is greater than the thickness of the first insulation plate located on the front side of the evaporator, resulting in a larger thickness of the second insulation plate and reducing the impact of defrosting heat from the evaporator on the storage cavity. As for the first insulation plate on the front side of the evaporator, since the cold air in the front area of ​​the evaporator has not yet entered the evaporator for heat exchange, the requirements for heat insulation and heat preservation performance are low, so a relatively smaller thickness can be set to save materials and reduce the space occupied by the first insulation plate in the front area of ​​the evaporator.

[0016] In some embodiments of this application, the first heat insulation plate includes:

[0017] The first plate portion is in contact with the top surface of the evaporator; the thickness of the first plate portion gradually increases from front to back.

[0018] The second plate is connected to the front end of the first plate and is located on the front side of the evaporator; the thickness of the second plate is less than the thickness of the front end of the first plate.

[0019] In this embodiment, by setting the first plate to contact the top surface of the evaporator, the position of the evaporator along the height direction is defined, and the air can be guided to flow through the evaporator for heat exchange. Furthermore, the thickness of the first plate gradually increases from front to back to match the downward sloping arrangement of the evaporator's rear end, allowing the first plate to be sandwiched between the upper cover and the evaporator. This ensures that the top surface of the upper cover forms a flat surface parallel to the horizontal plane, facilitating the structural arrangement within the first storage cavity. By setting the second plate at the front of the evaporator, the front of the evaporator also has good heat insulation and heat preservation performance. Moreover, the second plate guides the air from the first and second return air inlets, allowing the air to smoothly enter the evaporator for heat exchange and reducing the possibility of turbulence at the front of the evaporator.

[0020] In some embodiments of this application, the outer casing is configured to form a first return air vent and a second return air vent; the first return air vent is connected to the first storage cavity, and the second return air vent is connected to the second storage cavity;

[0021] Both the first return air vent and the second return air vent are located on the front side of the second plate.

[0022] In this embodiment, both the first return air inlet and the second return air inlet are located on the front side of the second plate. This avoids the second plate from obstructing the first and second return air inlets and affecting the return air efficiency. It also creates a buffer interval between the front side of the evaporator and the return air inlet, which helps to improve the uniformity of cold air entering the evaporator.

[0023] In some embodiments of this application, the evaporator module further includes:

[0024] A duct shell is located inside the housing and on the rear side of the outer casing; the duct shell is configured to form at least a portion of a duct and an air intake, the duct being connected to the evaporation chamber through the air intake;

[0025] A fan is installed at the end of the air duct facing the air intake.

[0026] The rear end of the evaporator and the air duct shell are spaced apart along the depth direction of the refrigerator.

[0027] In this embodiment, the evaporator module forms a partial air duct and an air intake by setting an air duct shell. The air duct is connected to the evaporation chamber through the air intake, and the fan is installed at the end of the air duct facing the air intake. This helps to reduce the air intake resistance of the fan at the air intake. By setting a gap between the rear end of the evaporator and the air duct shell, the air flowing through the evaporator is buffered and dispersed within this gap, allowing cold air to enter the air duct more evenly through the air intake and improving the smoothness of cold air flow.

[0028] In some embodiments of this application, the first heat insulation plate further includes: a third plate portion, the third plate portion being connected to the rear end of the first plate portion;

[0029] A portion of the third plate abuts against the air duct shell; a portion of the third plate is opposite to the air intake along the depth direction of the refrigerator and is provided with a clearance opening.

[0030] In this embodiment, the first heat insulation plate ensures the integrity of the heat insulation structure on the upper surface of the outer casing by setting a third plate at the rear end of the second plate. A portion of the third plate abuts against the air duct shell, and a portion of the third plate is opposite to the air intake along the depth direction of the refrigerator, with a clearance opening provided to guide the air from the evaporator into the air duct through the air intake, reducing the residence time of cold air between the air duct shell and the evaporator, thus improving the airflow rate. The clearance opening between the third plate and the air intake along the depth direction of the refrigerator prevents the third plate from affecting the area of ​​the air intake and thus the air intake efficiency.

[0031] In some embodiments of this application, the thickness of the third plate portion is greater than the thickness of the second plate portion.

[0032] In this embodiment, by setting the thickness of the third plate to be greater than that of the second plate, the heat insulation and heat preservation performance of the rear side of the evaporator is ensured. The second plate does not need to be excessively thick, which saves materials and also allows for sufficient return air space at the front of the evaporator.

[0033] In some embodiments of this application, the thickness of the third plate gradually decreases along the depth direction of the refrigerator, from the first plate portion to the air duct shell.

[0034] Along the depth direction of the refrigerator, and from the first plate to the air duct shell, the thickness of the third plate gradually decreases. This makes the cavity behind the evaporator expand outward, which helps the air after heat exchange from the evaporator to diffuse, improves the uniformity of cold air entering the air intake, and thus helps to improve the air intake efficiency.

[0035] In some embodiments of this application, the portion of the outer casing located above the evaporator is provided with a first rib;

[0036] The top surface of the first heat insulation plate is constructed to form a first rib groove that mates with the first rib.

[0037] In this embodiment, a first rib is provided on the upper cover of the outer casing, and a first groove is provided on the first heat insulation plate. The cooperation between the first groove and the first rib makes the position of the first heat insulation plate and the upper cover relatively fixed, thereby improving the structural stability of the evaporator module.

[0038] In some embodiments of this application, the first heat insulation plate forms first limiting blocks on both sides along the width direction of the refrigerator, and the first limiting blocks face the evaporator;

[0039] The second heat insulation plate forms second limiting blocks on both sides along the width direction of the refrigerator, and the second limiting blocks are opposite to and spaced apart from the first limiting blocks along the height direction of the refrigerator;

[0040] The evaporator is fixed between the first limiting block and the second limiting block on both sides along the width direction of the refrigerator.

[0041] This embodiment of the application improves the structural strength of the first heat insulation plate by setting a first limiting block on the first heat insulation plate; it also improves the structural strength of the second heat insulation plate by setting a second limiting block on the second heat insulation plate; and the limiting effect of the first and second limiting blocks on the evaporator fixes the evaporator between the first and second heat insulation plates, improving the stability and reliability of the evaporator installation; moreover, the setting of the first and second limiting blocks also helps to improve the heat insulation and heat preservation performance of the evaporation chamber on both sides along the width direction of the refrigerator.

[0042] In some embodiments of this application, the evaporator module further includes a lower cover plate, which is fixed to the top surface of the second heat insulation plate and contacts the bottom surface of the evaporator.

[0043] In this embodiment, by providing a lower cover plate on the top surface of the second heat insulation plate, the support for the evaporator can be improved, thus protecting the second heat insulation plate. The lower cover plate contacts the bottom surface of the evaporator, allowing air to pass through the evaporator for heat exchange as much as possible, which helps to improve heat exchange efficiency and reduces the amount of air entering the air duct without flowing through the evaporator.

[0044] In some embodiments of this application, the housing component includes:

[0045] The upper casing is located above the evaporator;

[0046] The lower casing is located below the evaporator;

[0047] The upper cover and the lower cover are snapped together on both sides along the width direction of the refrigerator, and the first heat insulation plate is provided with a clearance notch to avoid the snapping position of the upper cover and the lower cover.

[0048] At least one of the upper cover and the lower cover is fixedly connected to the middle crossbeam.

[0049] In this embodiment, the outer casing is formed by snapping together an upper cover and a lower cover, which accommodates the first heat insulation plate, the second heat insulation plate, and the evaporator, facilitating the modular assembly and disassembly of the evaporator module. Attached Figure Description

[0050] To more clearly illustrate the implementation methods in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0051] Figure 1 This application provides structural schematic diagrams of refrigerators for some embodiments.

[0052] Figure 2 This is a schematic diagram of the structure of the box liner and drawer provided in some embodiments of this application;

[0053] Figure 3 Exploded views of the box liner and internal structure provided for some embodiments of this application;

[0054] Figure 4 Front view of the box liner and internal structure provided for some embodiments of this application;

[0055] Figure 5 for Figure 4 AA section view in the middle;

[0056] Figure 6 A front view of a partial structure of an evaporator module provided in some embodiments of this application;

[0057] Figure 7 for Figure 6 BB section view in the middle;

[0058] Figure 8 A top view of a first heat insulation plate provided for some embodiments of this application;

[0059] Figure 9 for Figure 8 CC section view in the middle;

[0060] Figure 10 This is a schematic diagram of the structure of the first heat insulation plate provided in some embodiments of this application;

[0061] Figure 11 This is a schematic diagram of the structure of the upper cover provided in some embodiments of this application;

[0062] Figure 12 Top views of the box liner and internal structure provided in some embodiments of this application;

[0063] Figure 13 for Figure 12 DD section view in the middle;

[0064] Figure 14 for Figure 13 An enlarged schematic diagram of region P in the diagram.

[0065] Explanation of reference numerals in the attached figures:

[0066] 10: Box body; 11: Box liner; 101: Storage compartment; 1011: First storage cavity; 1012: Second storage cavity; 12: Middle crossbeam; 13: First drawer; 14: Second drawer; 15: Internal drawer;

[0067] 20: Door body;

[0068] 30: Evaporator module;

[0069] 301: Evaporation chamber; 302: First return air inlet; 303: Second return air inlet; 304: First supply air inlet; 305: Second supply air inlet; 306: Third supply air inlet;

[0070] 100: Outer shell; 110: Upper cover; 111: First rib; 112: Buckle; 120: Lower cover; 130: Lower cover plate;

[0071] 200: Evaporator;

[0072] 300: First heat insulation plate; 310: First plate section; 311: First rib groove; 320: Second plate section; 330: Third plate section; 331: Clearance opening; 340: Clearance notch; 350: First limiting block;

[0073] 400: Second heat insulation plate; 410: Second limiting block;

[0074] 500: Air duct housing; 501: Air intake; 502: Air duct;

[0075] 600: Fan. Detailed Implementation

[0076] To make the objectives, implementation methods and advantages of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments.

[0077] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0078] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a series of components is not necessarily limited to those that are explicitly listed, but may include other components that are not explicitly listed or that are inherent to such product or device.

[0079] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0080] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0081] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0082] The refrigerator is equipped with an evaporator and a fan, and is constructed to form an evaporation chamber for housing the evaporator. The fan drives air to circulate between the evaporation chamber and the storage compartment, thereby lowering the temperature of the storage compartment.

[0083] The evaporator chamber can be located in various positions. For example, the evaporator chamber can be formed at the rear of the cabinet, which is beneficial for cooling both the freezer and refrigerator compartments simultaneously; another example is that the evaporator is formed at the top of the cabinet, which allows the freezer compartment to have a greater depth; yet another example is that the evaporator is formed at the bottom of the cabinet.

[0084] In some refrigerators, such as drawer-type refrigerators, the freezer compartment is enclosed by two drawer-style doors, providing a larger storage capacity. However, a central crossbeam is essential between the two drawers to improve the overall stability of the refrigerator and prevent deformation due to frequent opening and closing of the drawers. However, the space behind the central crossbeam is not effectively utilized.

[0085] To this end, the researchers of this application positioned the evaporator module on the rear side of the central crossbeam, enabling heat exchange and refrigeration of the spaces above and below the central crossbeam. The evaporator module is constructed to form an evaporation chamber, and the evaporator is installed within the evaporation chamber.

[0086] Therefore, the insulation performance of the evaporator chamber is crucial. If the insulation performance of the evaporator chamber is poor, heat can easily be transferred to the storage compartment during defrosting, affecting the temperature of the storage compartment. If the insulation performance of the evaporator chamber is also poor, the evaporator itself will be at a lower temperature during heat exchange, which can easily lead to localized overcooling and uneven temperature distribution.

[0087] In related technologies, poor insulation of the evaporation chamber affects the temperature of the storage compartment, resulting in high energy consumption of the refrigerator.

[0088] To this end, the researchers of this application installed heat insulation boards on the top and bottom walls of the evaporation chamber to improve the heat insulation performance of the evaporation chamber.

[0089] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0090] First, it should be noted that, in combination Figure 1 The width of the refrigerator corresponds to the X-axis in the diagram, the depth of the refrigerator corresponds to the Y-axis in the diagram, and the height of the refrigerator corresponds to the Z-axis in the diagram.

[0091] Combination Figure 1 Some embodiments of this application provide a refrigerator, which includes a cabinet 10, the cabinet 10 being configured to form a storage compartment 101 with a front opening for storing items. Wherein, Figure 1 In the diagram, the negative direction of the Y-axis is the front side.

[0092] Multiple storage compartments 101 can be provided to expand storage space. Depending on the storage temperature of the storage compartments 101, they can include at least one refrigerated compartment and at least one frozen compartment. The internal temperature of the refrigerated compartment can be maintained between approximately 0°C and 5°C for storing items in refrigeration mode; the internal temperature of the frozen compartment can be maintained between approximately -30°C and 0°C for storing items in freezing mode.

[0093] In some possible implementations, at least one of the storage chambers 101 may also be configured as a vacuum chamber or a variable temperature chamber, etc., which will not be described in detail in the embodiments of this application.

[0094] For example, two storage compartments 101 can be provided, which can be stacked vertically or arranged side by side horizontally. One of them can be a refrigerator compartment and the other can be a freezer compartment.

[0095] In some embodiments, the cabinet 10 may include a cabinet liner 11 and a cabinet shell. The cabinet liner 11 may be configured to form a storage compartment 101 with a front opening. The cabinet shell may be attached to the outside of the cabinet liner 11 to form the appearance of a refrigerator.

[0096] The cabinet 10 may also include a cabinet insulation layer, which can be disposed between the cabinet liner 11 and the cabinet shell. The cabinet insulation layer can insulate the storage compartment 101 to minimize heat exchange between the storage compartment 101 and the outside of the refrigerator, which is beneficial to ensuring the cooling effect of the refrigerator.

[0097] The refrigerator of this embodiment may further include a refrigeration system for providing cooling capacity to the storage compartment 101. Exemplarily, the refrigeration system may be disposed within the cabinet 10. The refrigeration system may include a compressor, condenser, expansion valve, and evaporator connected in a cycle.

[0098] During refrigeration system operation, the compressor compresses refrigerant vapor to generate high-temperature, high-pressure refrigerant vapor, which is then transported to the condenser. The condenser liquefies the high-temperature, high-pressure refrigerant vapor, generating high-temperature, low-pressure refrigerant liquid, which is then transported to the expansion valve. The expansion valve reduces the pressure of the refrigerant liquid, transforming the high-pressure, low-temperature refrigerant liquid into a low-pressure, low-temperature refrigerant liquid, which is then transported to the evaporator. The evaporator receives the low-pressure, low-temperature refrigerant liquid and boils it under isobaric conditions, absorbing heat and vaporizing to form refrigerant vapor, thereby lowering the temperature inside storage compartment 101.

[0099] Continue to refer to Figure 1 The refrigerator in this embodiment may also include a door 20, which is rotatably connected to the cabinet 10 to open or close the storage compartment 101.

[0100] Each storage room 101 may be provided with one door 20; or, each storage room 101 may be provided with two doors 20, which may rotate in opposite directions to open or close the storage room 101.

[0101] Of course, in some possible implementations, the storage room 101 is provided with drawers, and the outer end of the drawers forms a door 20.

[0102] In some embodiments, such as Figure 1As shown, the door body 20 may include an inner door liner. When the door body 20 is closed to the refrigerator compartment, the inner door liner faces the refrigerator compartment.

[0103] The door 20 may include a door outer shell; the door outer shell may be attached to the outside of the door inner liner to form the appearance of the door 20. The door outer shell may be rotatably connected to the cabinet 10 to allow the door 20 to open or close the refrigerator compartment.

[0104] The door body 20 may also include a door insulation component, which can be disposed within the gap between the inner door liner and the outer door shell. The door insulation component can insulate the storage compartment 101 to minimize heat exchange between the storage compartment 101 and the outside of the refrigerator, thus helping to ensure the refrigerator's cooling effect. The door insulation component can be a foam layer.

[0105] In some embodiments, a door shelf is provided on the side of the door 20 facing the refrigerator compartment to increase the storage space of the refrigerator. The door shelf has an upward-opening storage cavity for storing items.

[0106] Combination Figure 2 In some embodiments of this application, a central crossbeam 12 is fixed to the front side of the inner box 11 to improve the structure of the inner box 11, provide support and stability, and prevent the box body 10 from deforming.

[0107] The middle crossbeam 12 can be fixed to the inner box 11, and the fixing method includes, but is not limited to, screw fixing, snap-fit, etc.

[0108] Combination Figure 2 and Figure 3 The refrigerator in this embodiment of the application also includes an evaporator module 30, which is configured to reduce the temperature of the storage compartment 101.

[0109] The evaporator module 30 is fixed inside the casing 11 and located behind the middle crossbeam 12, so that the evaporator module 30 can utilize the space behind the middle crossbeam 12.

[0110] Combination Figure 4 and Figure 5 The evaporator module 30 is located inside the liner 11 and divides the storage chamber 101 into a first storage chamber 1011 and a second storage chamber 1012. The first storage chamber 1011 is located at the top of the evaporator module 30, and the second storage chamber 1012 is located at the bottom of the evaporator module 30.

[0111] Thus, storage cavities are formed above and below the evaporator module 30, which can store different kinds of food and improve the flexibility of storage.

[0112] In this embodiment, the evaporator module 30 is configured to reduce the temperature of the first storage chamber 1011 and the second storage chamber 1012. The evaporator module 30 is located inside the liner 11, which can shorten the circulation path of cold air and help reduce heat loss during the flow of cold air.

[0113] In some embodiments, the evaporator module 30 is disposed inside the freezer compartment, and an air duct 502 can be configured in the refrigerator so that the evaporator module 30 cools the refrigerator compartment of the freezer compartment. Only one evaporator is required in the refrigerator, which helps reduce costs. Alternatively, the refrigerator can be equipped with a separate evaporator for cooling the refrigerator compartment of the freezer compartment, thus improving the accuracy of temperature control for both the refrigerator and freezer compartments.

[0114] Continue to refer to Figure 3 In some embodiments, at least one first drawer 13 is provided in the first storage cavity 1011, and the first drawer 13 is located along the depth direction of the refrigerator (corresponding to...). Figure 3 The central Y-axis section can be pulled out for easy access to items.

[0115] In some embodiments of this application, the first drawer 13 and the outer casing 100 are spaced apart along the height direction of the refrigerator, so that there is a gap between the bottom surface of the first drawer 13 and the evaporator module 30, avoiding the evaporator module 30 from causing the first drawer 13 to become too cold.

[0116] At least one second drawer 14 is provided in the second storage cavity 1012, and the second drawer 14 is arranged along the depth direction of the refrigerator (corresponding to...). Figure 3 The central Y-axis section can be pulled out for easy access to items.

[0117] In some implementations, a built-in drawer 15 may also be provided within the first drawer 13 and / or the second drawer 14. For example, the second drawer 14 may have a built-in drawer 15 located above it. When the second drawer 14 is closed, the built-in drawer 15 is not exposed, and it can be opened when the second drawer 14 is opened, thus increasing storage space and improving the flexibility of item storage.

[0118] like Figure 4 and Figure 5 As shown, in some embodiments of this application, the evaporator module 30 includes a housing 100 and an evaporator 200. The housing 100 is configured to form a mounting cavity for mounting the evaporator 200, a heat insulation plate, and other structures. The housing 100 is located behind the central crossbeam 12, allowing the evaporator module 30 to utilize the space behind the central crossbeam 12.

[0119] The outer casing 100 can be fixed to the middle crossbeam 12. For example, the outer casing 100 can be fixed to the middle crossbeam 12 by screws, which is a stable and reliable fixing method. Alternatively, the outer casing 100 can be snapped onto the middle crossbeam 12, which facilitates the on-site assembly of the evaporator module 30.

[0120] Continue to refer to Figure 3 and Figure 5 In some embodiments, the housing 100 includes:

[0121] The upper cover 110 is located above the evaporator 200.

[0122] The lower cover 120 is located below the evaporator 200. The rear end of the lower cover 120 can be tilted downwards to facilitate the collection and discharge of defrost water from the evaporator 200.

[0123] The upper cover 110 and the lower cover 120 are snapped together on both sides along the width direction of the refrigerator, so that the upper cover 110 and the lower cover 120 are stably connected. At least one of the upper cover 110 and the lower cover 120 is fixedly connected to the middle crossbeam 12, thereby realizing the fixed connection between the outer shell 100 and the middle crossbeam 12.

[0124] The outer casing 100 of this application embodiment is formed by the upper cover 110 and the lower cover 120 being snapped together to form an installation cavity, which facilitates the disassembly and assembly of the internal evaporator 200.

[0125] like Figure 5 As shown, the evaporator module 30 in some embodiments of this application may further include a first heat insulation plate 300. The first heat insulation plate 300 is fixed inside the outer casing 100. The first heat insulation plate 300 can be snapped into the outer casing 100, so there is no need to make holes in the outer casing 100 for fixing, which helps to ensure the relative sealing of the outer casing 100.

[0126] The first heat insulation plate 300 is partially in contact with the top surface of the evaporator 200. This allows air to flow after heat exchange through the evaporator 200, preventing air from flowing without heat exchange through the evaporator 200, thus ensuring the heat exchange efficiency of the air and helping to improve the cooling efficiency.

[0127] The first heat insulation plate 300 extends to the front side of the evaporator 200. This arrangement ensures that the top surface of the evaporator 200 has a large heat insulation area, improving the heat insulation and heat preservation performance of the chamber where the evaporator 200 is located. Moreover, the first heat insulation plate 300 extending to the front side of the evaporator 200 can also guide the air entering the evaporator 200, improving the smoothness of airflow.

[0128] In this embodiment of the application, by setting a first heat insulation plate 300 on the top surface of the evaporator 200, the ability of the evaporator module 30 to block external heat from entering the evaporator 200 is improved, and the chamber where the evaporator 200 is located can also have heat preservation performance, ensuring that the evaporator 200 maintains its low temperature, that is, improving the heat insulation and heat preservation performance of the evaporator module 30.

[0129] For example, the first insulation board 300 may include a foam board, which is low in cost and lightweight. The first insulation board 300 may also include a vacuum insulation panel (VIP) to improve the thermal insulation performance of the first insulation board 300.

[0130] The evaporator module 30 of this embodiment may further include a second heat insulation plate 400, which is fixed inside the outer casing 100 and located below the evaporator 200. Thus, the evaporator 200 is located between the second heat insulation plate 400 and the first heat insulation plate 300.

[0131] An evaporation chamber 301 is formed between the second heat insulation plate 400 and the first heat insulation plate 300. The evaporation chamber 301 is connected to the first storage chamber 1011 and the second storage chamber 1012 respectively. Air in the first storage chamber 1011 and the second storage chamber 1012 enters the evaporation chamber 301 for heat exchange, thereby reducing the temperature of the first storage chamber 1011 and the second storage chamber 1012.

[0132] In this embodiment of the application, by setting a second heat insulation plate 400 on the top surface of the evaporator 200, the ability of the evaporator module 30 to block external heat from entering the evaporator 200 is improved, and the chamber where the evaporator 200 is located can also have heat preservation performance, ensuring that the evaporator 200 maintains its low temperature, that is, improving the heat insulation and heat preservation performance of the evaporator module 30.

[0133] For example, the second insulation panel 400 may include a foam board, which is low in cost and lightweight. The second insulation panel 400 may also include a vacuum insulation panel (VIP) to improve the thermal insulation performance of the first insulation panel 300.

[0134] In the embodiments of this application, combined with Figure 6 and Figure 7 The front side of the outer casing 100 forms a first return air vent 302, which is connected to the first storage cavity 1011.

[0135] The first return air vent 302 may include multiple openings spaced apart along the width of the refrigerator to form a grille shape. It can have a large area of ​​first return air vent 302 and can also shield the structure inside the evaporation chamber 301.

[0136] The front side of the outer casing 100 is also configured to form a second return air vent 303, which is connected to the second storage cavity 1012.

[0137] The second return air vent 303 may include multiple openings spaced apart along the width of the refrigerator to form a grille shape. It can have a large area of ​​second return air vent 303 and can also shield the structure inside the evaporation chamber 301.

[0138] In some embodiments, there is a gap between the front end of the evaporator 200 and the first return air vent 302 along the depth direction of the refrigerator, and there is a gap between the front end of the evaporator 200 and the second return air vent 303 along the depth direction of the refrigerator. This allows the air entering through the first return air vent 302 and the second return air vent 303 to be buffered at the front end of the evaporator 200, so that it can enter the evaporator 200 evenly for heat exchange, which helps to improve the heat exchange efficiency of the evaporator 200.

[0139] In some embodiments of this application, the return air direction of the first return air inlet 302 is different from that of the second return air inlet 303, which can reduce the flow of air in the first storage cavity 1011 and the second storage cavity 1012 through the first return air inlet 302 and the second return air inlet 303, thereby affecting the heat exchange efficiency with the evaporator 200; it can also reduce the impact of the opening and closing of one storage cavity on the other storage cavity.

[0140] For example, the return air direction of the first return air vent 302 is towards the front of the refrigerator, and the return air direction of the second return air vent 303 is towards the bottom.

[0141] For example, the return air direction of the first return air vent 302 is upward, and the return air direction of the second return air vent 303 is downward.

[0142] In some embodiments, when the fan 600 in the evaporator module 30 is positioned slightly above the middle crossbeam 12, the first return air vent 302 returns air along the front-to-back direction of the refrigerator, and the second return air vent 303 returns air along the height direction of the refrigerator. This results in a relatively large space below the evaporator module 30, allowing for smoother airflow through the second return air vent 303.

[0143] In some embodiments, when the fan 600 in the evaporator module 30 is positioned slightly below the middle crossbeam 12, the first return air vent 302 returns air along the height direction of the refrigerator, and the second return air vent 303 returns air along the front-to-back direction of the refrigerator.

[0144] In some possible implementations of this application, the positions of the first return air vent 302 and the second return air vent 303 are staggered along the depth direction of the refrigerator, which can reduce the collision of airflow between the first return air vent 302 and the second return air vent 303 and thus reduce the impact on return air efficiency.

[0145] In this embodiment of the application, in order to ensure that the air from the first return air inlet 302 and the second return air inlet 303 both pass through the evaporator 200 for heat exchange, the second heat insulation plate 400 is in contact with the evaporator 200.

[0146] In some embodiments, the evaporator module 30 further includes a lower cover plate 130, which is fixed to the top surface of the second heat insulation plate 400 and contacts the bottom surface of the evaporator 200. This ensures that there is no gap between the bottom surface of the evaporator 200 and the lower cover plate 130, thereby allowing air to pass through the evaporator 200 for heat exchange as much as possible and improving heat exchange efficiency.

[0147] Furthermore, the lower cover plate 130 can enhance the support for the evaporator 200 and protect the second heat insulation plate 400.

[0148] In this embodiment, the evaporator module 30 may further include a heater configured to heat the evaporator 200 for defrosting. The heater may be disposed between the lower cover plate 130 and the second heat insulation plate 400 to reduce the resistance of the heater to the defrosting water; the heater may also be disposed above the lower cover plate 130 and within the fin spacing of the evaporator 200, which helps to improve the heating and defrosting effect.

[0149] Combination Figure 5 and Figure 7 In some embodiments of this application, the evaporator module 30 further includes a duct shell 500, which is located inside the housing liner 11 and on the rear side of the outer casing 100; the duct shell 500 is fixedly connected to the outer casing 100.

[0150] The air duct shell 500 is constructed to form at least a portion of the air duct 502 and the air intake 501, with the air duct 502 connected to the evaporation chamber 301 through the air intake 501.

[0151] The air duct shell 500 can be constructed to form a complete air duct 502 to connect the evaporator chamber 301 and the storage chamber, thus facilitating the modular installation and disassembly of the evaporator module 30. Alternatively, a portion of the air duct shell 500 can form a partial air duct 502, with the remaining portion of the air duct 502 and the inner liner 11 enclosing another portion of the air duct 502. This reduces the space occupied by the evaporator module 30 in the depth direction of the refrigerator.

[0152] The evaporator module 30 in this embodiment may further include a fan 600, which is installed at the end of the air duct 502 facing the air intake 501. This helps to reduce the air intake resistance of the fan 600 at the air intake 501.

[0153] In some embodiments, the axis of the fan 600 may be perpendicular to a vertical plane defined by the height and width directions of the refrigerator, such that the fan 600 is at least partially opposite to the evaporation chamber 301 through the air intake 501. Thus, the projection of the evaporator 200 in the vertical plane and the projection of the fan 600 in the vertical direction at least partially overlap, allowing the air intake 501 and the evaporation chamber 301 to have a larger facing area, which is beneficial for improving the air intake efficiency of the fan 600.

[0154] In some embodiments, a portion of the air duct housing 500 extends into the first storage cavity 1011 and is configured to form a first air outlet 304, which connects the air duct 502 and the first storage cavity 1011.

[0155] Multiple first air outlets 304 can be provided, and multiple first air outlets 304 can be arranged at intervals along the width direction and / or height direction of the refrigerator, which increases the air supply area and the number of air supply positions, thus improving the uniformity of air supply.

[0156] In some embodiments, a portion of the air duct housing 500 extends into the second storage cavity 1012 and forms a second air outlet 305, which is located below the first air outlet 304 and connects the air duct 502 and the second storage cavity 1012.

[0157] The second air outlet 305 can be provided in multiple ways. The multiple second air outlets 305 can be arranged at intervals along the width direction and / or the height direction of the refrigerator, which increases the air supply area and the number of air supply positions, thus improving the uniformity of air supply.

[0158] In some embodiments of this application, the portion of the air duct housing 500 extending into the second storage cavity 1012 may also be configured to form a third air outlet 306, which is located below the second air outlet 305. Multiple third air outlets 306 may be provided, and these multiple third air outlets 306 may be spaced apart along the width direction and / or height direction of the refrigerator.

[0159] For example, there are two second air outlets 305 spaced apart along the width direction of the refrigerator, and a third air outlet 306 is located between the two second air outlets 305 along the width direction of the refrigerator.

[0160] In this way, multiple air supply positions are formed in the second storage cavity 1012, which helps to increase the air supply volume; the air supply outlets set at different heights and widths help to improve the uniformity of air supply.

[0161] The air supply direction of the second air outlet 305 can be different from that of the third air outlet 306. The second air outlet 305 can be configured to supply air to the front side, and the third air outlet 306 can be configured to supply air to the front and lower side. In this way, air can be supplied to the second storage cavity 1012 from different directions, which helps to improve the uniformity of cold air distribution in the second storage cavity 1012.

[0162] In this embodiment, the rear end of the evaporator 200 and the duct housing 500 are spaced apart along the depth direction of the refrigerator. The air intake 501 is typically circular to match the shape of the fan 600, facilitating air intake by the fan 600; the cross-sectional shape of the evaporator 200 is typically rectangular. By providing a gap between the rear end of the evaporator 200 and the duct housing 500, the air flowing through the evaporator 200 is buffered and dispersed within this gap, allowing cold air to enter the duct 502 more evenly through the air intake 501, thus improving the smoothness of cold air flow.

[0163] With the above configuration, under the action of the fan 600, the air in the first storage chamber 1011 enters the evaporation chamber 301 through the first return air inlet 302, and the air in the second storage chamber 1012 enters the evaporation chamber 301 through the second return air inlet 303 and exchanges heat with the evaporator 200; then it enters the air duct 502 through the air intake 501, and then returns to the first storage chamber 1011 through the first air outlet 304, and returns to the second storage chamber 1012 through the second air outlet 305. This cycle is repeated to reduce the temperature in the first storage chamber 1011 and the second storage chamber 1012.

[0164] Continue to refer to Figure 5 and Figure 7 In some embodiments of this application, the thickness of the second heat insulation plate 400 is greater than the thickness of the portion of the first heat insulation plate 300 located in front of the evaporator 200. This ensures that the second heat insulation plate 400 has a larger thickness, improves the heat insulation and heat preservation performance of the second heat insulation plate 400, and avoids the impact of the defrosting heat of the evaporator 200 on the storage cavity.

[0165] In this embodiment, a first heat insulation plate 300 is provided above the evaporator 200, and a second heat insulation plate 400 is provided below the evaporator 200. This improves the heat insulation and heat preservation performance of the evaporation chamber 301, reducing the amount of heat entering the evaporation chamber 301 from the external environment, thereby reducing the workload of the compressor and reducing energy consumption. Furthermore, the placement of the first heat insulation plate 300 and the second heat insulation plate 400 reduces the impact of the defrosting heat from the evaporator 200 on the first storage chamber 1011 and the second storage chamber 1012, and prevents the evaporator 200 from overcooling the first storage chamber 1011 and the second storage chamber 1012, thus avoiding affecting storage quality.

[0166] Of course, installing a first heat insulation plate 300 above the evaporator 200 and a second heat insulation plate 400 below the evaporator 200 can also improve the protection of the evaporator 200 and reduce the damage to the evaporator 200 caused by external forces.

[0167] The placement of the first insulation plate 300 and the second insulation plate 400 also helps to absorb and isolate noise and vibration, giving the refrigerator a quiet operating environment.

[0168] In some possible implementations of this application, the first heat insulation plate 300 includes: a first plate portion 310, which contacts the top surface of the evaporator 200; the thickness of the first plate portion 310 gradually increases from front to back.

[0169] The first heat insulation plate 300 may also include a second plate portion 320, which is connected to the front end of the first plate portion 310 and located on the front side of the evaporator 200. The thickness of the second plate portion 320 is less than the thickness of the front end of the first plate portion 310, so that the first plate portion 310 in contact with the evaporator 200 has a larger thickness, which can isolate the low temperature of the evaporator 200 and avoid the evaporator 200 from causing overcooling to the first storage cavity 1011.

[0170] In this embodiment, by setting the first plate portion 310 to contact the top surface of the evaporator 200, the position of the evaporator 200 along the height direction is defined, and the air can be guided to flow through the evaporator 200 for heat exchange. Furthermore, the thickness of the first plate portion 310 gradually increases from front to back to match the downward tilt of the rear end of the evaporator 200, so that the first plate portion 310 is sandwiched between the upper cover 110 and the evaporator 200, allowing the top surface of the upper cover 110 to form a flat surface parallel to the horizontal plane, facilitating the structural arrangement within the first storage cavity 1011. By setting the second plate portion 320 at the front side of the evaporator 200, the front side of the evaporator 200 also has good heat insulation and heat preservation performance; and by guiding the air from the first return air inlet 302 and the second return air inlet 303 through the second plate portion 320, the air can smoothly enter the evaporator 200 for heat exchange, reducing the possibility of turbulence at the front end of the evaporator 200.

[0171] Continue to refer to Figure 7 In some embodiments of this application, the first return air vent 302 and the second return air vent 303 are both located on the front side of the second plate portion 320. This avoids the second plate portion 320 from obstructing the first return air vent 302 and the second return air vent 303 and affecting the return air efficiency. It also creates a buffer interval between the front side of the evaporator 200 and the return air vent, which helps to improve the uniformity of cold air entering the evaporator 200.

[0172] In some embodiments, combined with Figures 7 to 9 The first heat insulation plate 300 may further include a third plate portion 330, which is connected to the rear end of the first plate portion 310.

[0173] The third plate portion 330 abuts against the air duct shell 500; the third plate portion 330 is opposite to the air intake 501 along the depth direction of the refrigerator, and is provided with a clearance opening 331 to avoid the air intake 501.

[0174] In this embodiment, the first heat insulation plate 300 ensures the integrity of the heat insulation structure on the upper surface of the outer casing 100 by providing a third plate portion 330 at the rear end of the second plate portion 320. A portion of the third plate portion 330 abuts against the air duct shell 500, and a portion of the third plate portion 330 is opposite to the air intake 501 along the depth direction of the refrigerator, with a clearance opening 331 provided. This guides the air exiting the evaporator 200, allowing it to enter the air duct 502 through the air intake 501, reducing the residence time of cold air between the air duct shell 500 and the evaporator 200, and helping to improve the airflow rate. The clearance opening 331 prevents the third plate portion 330 from affecting the area of ​​the air intake 501 and thus the air intake efficiency.

[0175] Continue to refer to Figure 7 and Figure 9 Since the front of the evaporator 200 is the return air end, the air temperature in the area in front of the evaporator 200 is relatively higher than that in the rear. Meanwhile, the air in the gap between the evaporator 200 and the duct shell 500, after heat exchange with the evaporator 200, has a relatively lower temperature. Therefore, the rear of the evaporator 200 requires greater insulation and heat preservation. By making the thickness of the third plate 330 greater than that of the second plate 320, the insulation and heat preservation performance of the rear of the evaporator 200 is ensured. The second plate 320 does not need to be excessively thick, which saves material and also allows for sufficient return air space in the front of the evaporator 200.

[0176] When the thickness of the third plate 330 changes, the minimum thickness of the third plate 330 is greater than the thickness of the second plate 320, so as to ensure that the third plate 330 has sufficient thickness, thereby ensuring heat insulation and heat preservation performance.

[0177] Along the depth direction of the refrigerator, and from the first plate portion 310 to the air duct shell 500, the thickness of the third plate portion 330 gradually decreases, so that the chamber on the rear side of the evaporator 200 is outwardly expanded, which is conducive to the diffusion of air after heat exchange from the evaporator 200, improving the uniformity of cold air entering the air intake 501, and thus improving the air intake efficiency.

[0178] Combination Figure 11The portion of the outer casing 100 located above the evaporator 200 is provided with a first rib 111. Exemplarily, the first rib 111 is provided on the upper cover 110 of the outer casing 100, which helps to improve the structural strength and stability of the upper cover 110.

[0179] Combination Figure 8 and Figure 10 The top surface structure of the first plate portion 310, the second plate portion 320 and the third plate portion 330 forms a first rib groove 311 that cooperates with the first rib 111.

[0180] In this embodiment of the application, a first rib 111 is provided on the upper cover 110 of the outer shell 100, and a first rib groove 311 is provided on the first heat insulation plate 300. Through the cooperation of the first rib groove 311 and the first rib 111, the positions of the first heat insulation plate 300 and the upper cover 110 are relatively fixed, thereby improving the structural stability of the evaporator module 30.

[0181] The first rib 111 can be in a grid shape, which helps to further improve the structural strength of the upper cover 110; correspondingly, the first rib groove 311 is in a grid shape, so that the first rib groove 311 matches the first rib 111, ensuring that the position of the first heat insulation plate 300 and the upper cover 110 is relatively fixed.

[0182] Continue to refer to Figure 11 In some embodiments, the upper cover 110 is oriented along the width direction of the refrigerator (corresponding to...). Figure 11 On both sides of the upper cover 110 (in the X-axis direction), there are buckles 112. The buckles 112 are used to pass through the slots on the lower cover 120 and engage with the lower cover 120 to achieve a fixed connection between the upper cover 110 and the lower cover 120.

[0183] Reference Figure 10 The first heat insulation plate 300 has clearance notches 340 on both sides along the width direction of the refrigerator to avoid the upper cover 110 and the lower cover 120 from being snapped together, and to prevent the buckle 112 from interfering with the first heat insulation plate 300 and affecting the snapping of the upper cover 110 and the lower cover 120.

[0184] In some possible implementations of this application, the portion of the outer casing 100 located below the evaporator 200 is provided with a second rib. For example, the lower cover 120 is provided with a second rib, which helps to improve the structural strength and stability of the lower cover 120.

[0185] The bottom surface of the second heat insulation plate 400 is constructed to form a second rib groove that cooperates with the second rib. The cooperation between the second rib groove and the second rib ensures that the relative position between the second heat insulation plate 400 and the lower cover 120 is fixed.

[0186] In some embodiments of this application, combined with Figures 12 to 14The first heat insulation plate 300 forms first limiting blocks 350 on both sides along the width direction of the refrigerator, and the first limiting blocks 350 face the evaporator 200.

[0187] The second heat insulation plate 400 forms second limiting blocks 410 on both sides along the width direction of the refrigerator. The second limiting blocks 410 and the first limiting block 350 are opposite to each other along the height direction of the refrigerator and are spaced apart.

[0188] The evaporator 200 is fixed on both sides of the refrigerator along the width direction between the first limiting block 350 and the second limiting block 410.

[0189] In this embodiment, the first limiting block 350 is provided on the first heat insulation plate 300, which helps to improve the structural strength of the first heat insulation plate 300; the second limiting block 410 is provided on the second heat insulation plate 400, which helps to improve the structural strength of the second heat insulation plate 400; and the limiting effect of the first limiting block 350 and the second limiting block 410 on the evaporator 200 fixes the evaporator 200 between the first heat insulation plate 300 and the second heat insulation plate 400, thereby improving the stability and reliability of the evaporator 200 installation; moreover, the provision of the first limiting block 350 and the second limiting block 410 also helps to improve the heat insulation and heat preservation performance of both sides of the evaporation chamber 301 along the width direction of the refrigerator.

[0190] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0191] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that, include: The inner box (11) is constructed to form a storage compartment (101) with an opening on the front side; a central crossbeam (12) is fixed to the front side of the inner box (11); An evaporator module (30) is fixed inside the liner (11) and located behind the middle crossbeam (12); the evaporator module (30) divides the storage chamber (101) into a first storage cavity (1011) and a second storage cavity (1012), the first storage cavity (1011) being located at the top of the evaporator module (30) and the second storage cavity (1012) being located at the bottom of the evaporator module (30); the evaporator module (30) includes: The outer casing (100) is fixed to the rear side of the middle crossbeam (12); An evaporator (200) is installed inside the outer casing (100); A first heat insulation plate (300) is fixed inside the outer casing (100); a portion of the first heat insulation plate (300) contacts the top surface of the evaporator (200), and the first heat insulation plate (300) extends to the front side of the evaporator (200); The second heat insulation plate (400) is fixed inside the outer casing (100) and located below the evaporator (200); the thickness of the second heat insulation plate (400) is greater than the thickness of the first heat insulation plate (300) located on the front side of the evaporator (200); An evaporation chamber (301) is formed between the second heat insulation plate (400) and the first heat insulation plate (300), and the evaporation chamber (301) is connected to the first storage chamber (1011) and the second storage chamber (1012) respectively.

2. The refrigerator according to claim 1, characterized in that, The first heat insulation panel (300) includes: The first plate portion (310) is in contact with the top surface of the evaporator (200); the thickness of the first plate portion (310) gradually increases from front to back; The second plate (320) is connected to the front end of the first plate (310) and is located on the front side of the evaporator (200); the thickness of the second plate (320) is less than the thickness of the front end of the first plate (310).

3. The refrigerator according to claim 2, characterized in that, The outer casing (100) is configured to form a first return air vent (302) and a second return air vent (303); the first return air vent (302) is connected to the first storage cavity (1011), and the second return air vent (303) is connected to the second storage cavity (1012); The first return air vent (302) and the second return air vent (303) are both located on the front side of the second plate (320).

4. The refrigerator according to claim 2, characterized in that, The evaporator module (30) also includes: A duct housing (500) is located inside the housing (11) and on the rear side of the outer casing (100); the duct housing (500) is configured to form at least a portion of a duct (502) and an air intake (501), the duct (502) being connected to the evaporation chamber (301) through the air intake (501); A fan (600) is installed at one end of the air duct (502) facing the air intake (501); The rear end of the evaporator (200) is spaced from the air duct shell (500) along the depth direction of the refrigerator.

5. The refrigerator according to claim 4, characterized in that, The first heat insulation plate (300) further includes a third plate portion (330), which is connected to the rear end of the first plate portion (310); A portion of the third plate (330) abuts against the air duct shell (500); a portion of the third plate (330) is opposite to the air intake (501) along the depth direction of the refrigerator and is provided with a clearance opening (331).

6. The refrigerator according to claim 5, characterized in that, The thickness of the third plate (330) is greater than the thickness of the second plate (320).

7. The refrigerator according to claim 5, characterized in that, Along the depth direction of the refrigerator, and from the first plate portion (310) to the air duct shell (500), the thickness of the third plate portion (330) gradually decreases.

8. The refrigerator according to any one of claims 1-7, characterized in that, The portion of the outer casing (100) located above the evaporator (200) is provided with a first rib (111); The top surface of the first heat insulation plate (300) is constructed to form a first rib groove (311) that cooperates with the first rib (111).

9. The refrigerator according to any one of claims 1-7, characterized in that, The first heat insulation plate (300) forms first limiting blocks (350) on both sides along the width direction of the refrigerator, and the first limiting blocks (350) face the evaporator (200); The second heat insulation plate (400) forms second limiting blocks (410) on both sides along the width direction of the refrigerator. The second limiting blocks (410) and the first limiting blocks (350) are opposite to each other along the height direction of the refrigerator and are spaced apart. The evaporator (200) is fixed between the first limiting block (350) and the second limiting block (410) on both sides along the width direction of the refrigerator.

10. The refrigerator according to any one of claims 1-7, characterized in that, The evaporator module (30) also includes a lower cover plate (130), which is fixed to the top surface of the second heat insulation plate (400) and in contact with the bottom surface of the evaporator (200).

Images