Refrigerator

Abstract

The utility model relates to the technical field of refrigeration equipment, and discloses a refrigerator. The inner container is arranged in the box body, and a storage cavity is defined by the inner container; the first evaporator is arranged between the refrigerator body and the inner container and is arranged on the rear wall of the storage chamber; the air duct is arranged in the storage cavity and on the rear wall of the storage cavity, and an air outlet and an air inlet are formed towards the interior of the storage cavity so as to communicate the storage cavity with the air duct; and the first fan is arranged in the air duct. The first evaporator is arranged on the rear wall of the storage cavity, generated cold energy enters the air duct arranged in the storage cavity, the first fan sends the cold energy generated in the air duct into the storage cavity through the air outlet, then airflow in the storage cavity is introduced into the air duct for refrigeration, and the airflow is sent into the storage cavity after refrigeration. And the temperature in the storage chamber and the temperature of the surrounding side wall are more uniform, and a better refrigeration effect is achieved.

Description

Technical Field

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

[0002] At present, refrigerator refrigeration methods are generally divided into three types. The first is direct cooling, which uses refrigerant to directly cool the compartment. This method has low power consumption and low noise, but uneven temperature distribution; the second is air cooling, which uses the medium mainly air to cool the compartment. This method solves the problem of uniform temperature in the compartment, but has a drying effect on vegetables and fruits in the refrigerator. In addition, high noise and high power consumption are also important defects; the third is mixed cooling, which mainly uses direct cooling of the refrigerator compartment and air cooling of the freezer compartment. This method is generally less used. It solves the drying effect in air cooling, but it also has the problems of uneven temperature distribution and high power consumption.

[0003] The related technology discloses a refrigerator, including a box body and a door body opened and closed on the box body, the refrigerator includes a refrigerated inner tank, the refrigerated inner tank has a top wall, a bottom wall, a rear wall corresponding to the door body, and two side walls, the refrigerator includes a first refrigerated evaporator and a second refrigerated evaporator for accommodating refrigerant, the first refrigerated evaporator is distributed on the side wall or the rear wall of the refrigerated inner tank and is arranged close to the top wall, the second refrigerated evaporator is distributed on the side wall or the rear wall of the refrigerated inner tank and is arranged close to the bottom wall, so that the temperature above and below the refrigerated inner tank of the refrigerator can be kept relatively consistent.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] The evaporator in the related art is arranged on the side wall or rear wall outside the inner tank. When many items are placed in the refrigerator compartment, a temperature difference may occur between the side wall and the interior of the refrigerator compartment, resulting in uneven temperature and affecting the refrigeration effect.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiment provides a refrigerator to solve the problem of uneven temperature between the side wall and the interior of the refrigerator compartment.

[0009] According to a first aspect of an embodiment of the utility model, a refrigerator is provided, comprising: a box body; an inner tank arranged in the box body and defining a storage chamber; a first evaporator arranged between the box body and the inner tank and arranged on the rear wall of the storage chamber; an air duct arranged inside the storage chamber and arranged on the rear wall of the storage chamber, with an air outlet and an air inlet arranged toward the storage chamber to connect the storage chamber and the air duct; a first fan arranged in the air duct.

[0010] Optionally, the storage chamber includes a first chamber and a second chamber, the first evaporator is arranged on the rear wall of the first chamber, and the air duct is arranged inside the first chamber. The refrigerator also includes: a second evaporator, which is arranged between the box body and the inner tank and is arranged on the rear wall of the second chamber.

[0011] Optionally, the first fan is arranged opposite to the air inlet, and the first evaporator is arranged opposite to the air outlet.

[0012] Optionally, the first fan is arranged opposite to the air outlet, and the first evaporator is arranged opposite to the air inlet.

[0013] Optionally, when the first fan is arranged opposite to the air inlet, the first fan is a centrifugal fan; when the first fan is arranged opposite to the air outlet, the first fan is an axial flow fan.

[0014] Optionally, the refrigerator further comprises: a second fan, arranged in the second chamber, so as to circulate the air flow in the second chamber.

[0015] Optionally, the second fan is arranged in the second room near the top wall and the rear wall.

[0016] Optionally, the refrigerator further includes: a controller connected to the first fan and the second fan to control the start and stop time of the first fan and the second fan.

[0017] Optionally, the first evaporator and the second evaporator are aluminum plate coil evaporators or inflation evaporators.

[0018] Optionally, the refrigerator further includes: a first drainage channel, one end of which is connected to the first chamber and the other end of which is connected to the bottom of the inner tank; a second drainage channel, one end of which is connected to the second chamber and the other end of which is connected to the bottom of the inner tank.

[0019] The refrigerator provided by the embodiment of the present disclosure can achieve the following technical effects:

[0020] In the refrigerator provided by the embodiment of the present disclosure, the first evaporator is arranged on the rear wall of the storage chamber, and the cold energy generated enters the air duct arranged inside the storage chamber. The first fan sends the cold energy generated in the air duct into the storage chamber through the air outlet, and then introduces the airflow in the storage chamber into the air duct for refrigeration, and then sends it into the storage chamber after refrigeration, so that the temperature inside the storage chamber and the temperature of the surrounding side walls are more uniform, thereby achieving a better refrigeration effect.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 is a schematic structural diagram of a refrigerator provided by an embodiment of the present disclosure;

[0024] Figure 2 yes Figure 1 The schematic cross-sectional structure diagram along the AA direction shown in FIG. , wherein the direction indicated by the arrow is the direction of airflow;

[0025] Figure 3 yes Figure 2 The enlarged structural diagram of the A part is shown in FIG. , wherein the direction indicated by the arrow is the direction of air flow;

[0026] Figure 4 is a structural schematic diagram of another refrigerator provided by an embodiment of the present disclosure;

[0027] Figure 5 yes Figure 4 The schematic cross-sectional structure diagram of the BB direction is shown in , wherein the direction indicated by the arrow is the airflow direction;

[0028] Figure 6 yes Figure 5 The enlarged structural schematic diagram of part B is shown in the figure, wherein the direction indicated by the arrow is the direction of air flow.

[0029] Reference numerals:

[0030] 1: Box body;

[0031] 2: liner; 21: storage chamber; 22: first chamber; 23: second chamber;

[0032] 3: the first evaporator;

[0033] 4: air duct; 41: air outlet; 42: air inlet; 43: first fan;

[0034] 5: Second evaporator;

[0035] 6: Second fan;

[0036] 7: First drainage channel;

[0037] 8: Second drainage channel. DETAILED DESCRIPTION

[0038] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0039] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate for the disclosed embodiments described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0040] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0041] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0042] Unless otherwise stated, the term "plurality" means two or more.

[0043] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0044] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0046] Combination Figure 1-6 As shown, an embodiment of the present disclosure provides a refrigerator, including a box body 1, an inner tank 2, a first evaporator 3, an air duct 4 and a first fan 43.

[0047] The inner tank 2 is arranged in the box body 1, defining a storage chamber 21; the first evaporator 3 is arranged between the box body 1 and the inner tank 2, and is arranged on the rear wall of the storage chamber 21; the air duct 4 is arranged inside the storage chamber 21, and is arranged on the rear wall of the storage chamber 21, and an air outlet 41 and an air inlet 42 are arranged toward the storage chamber 21 to connect the storage chamber 21 and the air duct 4; the first fan 43 is arranged in the air duct 4.

[0048] In the refrigerator provided by the embodiment of the present disclosure, the first evaporator 3 is arranged on the rear wall of the storage chamber 21, and the cold energy generated enters the air duct 4 arranged inside the storage chamber 21. The first fan 43 sends the cold energy generated in the air duct 4 into the storage chamber 21 through the air outlet 41, and then introduces the airflow in the storage chamber 21 into the air duct 4 for refrigeration, and then sends it into the storage chamber 21 after refrigeration, so that the temperature inside the storage chamber 21 and the temperature of the surrounding side walls are more uniform, thereby achieving a better refrigeration effect.

[0049] Alternatively, if Figure 1-6 As shown, the storage chamber 21 includes a first chamber 22 and a second chamber 23, the first evaporator 3 is arranged on the rear wall of the first chamber 22, and the air duct 4 is arranged inside the first chamber 22. The refrigerator also includes a second evaporator 5, which is arranged between the box body 1 and the inner tank 2 and on the rear wall of the second chamber 23.

[0050] The first evaporator 3 cooperates with the air duct 4 to cool the first chamber 22. The second evaporator 5 is arranged on the rear wall of the second chamber 23 to cool the second chamber 23. The surface of the inner tank 2 corresponding to the position of the second evaporator 5 generates cold energy. The generated cold energy exchanges heat with the air with a higher temperature in the second chamber 23, so that the air temperature in the second chamber 23 decreases, thereby realizing the cooling of the second chamber 23.

[0051] Optionally, a partition plate is provided between the first chamber 22 and the second chamber 23 , and the partition plate is circumferentially fitted with the inner liner 2 to separate the first chamber 22 from the second chamber 23 .

[0052] The first chamber 22 and the second chamber 23 are separated by a partition plate, and both sides and the rear side of the partition plate are in contact with the surface of the inner tank 2. The refrigerator also includes a door body, and the front surface of the partition plate is in contact with the inner surface of the door body. At this time, the partition plate and the surrounding of the interior of the refrigerator form a sealing structure. The setting of the partition plate enables the first chamber 22 and the second chamber 23 to form a sealed area, so as to avoid the problem of odor cross-talk between the first chamber 22 and the second chamber 23.

[0053] Alternatively, if Figure 3 As shown, the first fan 43 is arranged opposite to the air inlet 42 , and the first evaporator 3 is arranged opposite to the air outlet 41 .

[0054] When the first fan 43 is arranged opposite to the air inlet 42, the first fan 43 sucks the airflow in the first chamber 22 into the air duct 4 through the air inlet 42, and blows it toward the surface of the inner tank 2 where the first evaporator 3 is located. The first evaporator 3 is arranged opposite to the air outlet 41, and the first fan 43 sends the cold energy generated on the surface of the inner tank 2 into the first chamber 22 through the air outlet 41 to cool the first chamber 22. The arrangement of the first fan 43 makes the airflow exchange efficiency between the air duct 4 and the inside of the first chamber 22 higher, so that the cooling effect of the first chamber 22 is better, and the temperature uniformity in the first chamber 22 is improved.

[0055] Alternatively, if Figure 6 As shown, the first fan 43 is arranged opposite to the air outlet 41 , and the first evaporator 3 is arranged opposite to the air inlet 42 .

[0056] When the first evaporator 3 is arranged opposite to the air inlet 42, the airflow in the first chamber 22 enters the air duct 4 from the air inlet 42 to the surface of the inner tank 2 where the first evaporator 3 is located. After the surface of the inner tank 2 generates cold energy, it enters the first fan 43 through the suction force of the first fan 43. The first fan 43 is arranged opposite to the air outlet 41. The first fan 43 sends the cold energy into the first chamber 22 to cool the first chamber 22. The arrangement of the first fan 43 makes the airflow exchange efficiency between the air duct 4 and the inside of the first chamber 22 higher, so that the cooling effect of the first chamber 22 is better, and the temperature uniformity in the first chamber 22 is improved.

[0057] It can be understood that the first fan 43 may not be arranged opposite to the air inlet 42 and the air outlet 41, and the first evaporator 3 may not be arranged opposite to the air inlet 42 and the air outlet 41. The first fan 43 is arranged in the air duct 4, which can accelerate the circulation of the cold exchange between the first chamber 22 and the air duct 4. The first evaporator 3 is arranged on the rear wall of the first chamber 22, which can achieve the effect of cooling the first chamber 22.

[0058] The air inlet 42 and the air outlet 41 may be disposed in such a manner that the air inlet 42 is located above the air outlet 41 or below the air outlet 41 . This application takes the case where the air inlet 42 is located below the air outlet 41 as an example.

[0059] Optionally, when the first fan 43 is arranged opposite to the air inlet 42, the first fan 43 is a centrifugal fan; when the first fan 43 is arranged opposite to the air outlet 41, the first fan 43 is an axial flow fan.

[0060] Centrifugal fans use a motor to drive the impeller to rotate. The impeller is usually composed of multiple curved or beveled blades. When the impeller rotates, gas is sucked into the fan. Under the action of centrifugal force, the gas is accelerated from the center of the impeller and thrown radially. Inside the impeller, the flow direction of the gas changes from axial to radial, and then enters the diffuser, where the flow direction of the gas changes again, the cross-sectional area increases, the airflow slows down, and the kinetic energy is converted into pressure energy, thereby generating a higher pressure.

[0061] Axial flow fans use a motor to drive the impeller to rotate. The impeller is usually composed of multiple thin metal sheets in a flat or wing shape. When the impeller rotates, the gas flows along the axis. The rotation of the impeller accelerates the gas, and then the accelerated gas is discharged axially through the guide device. The impeller of an axial flow fan is usually designed with a smaller angle of attack to reduce energy loss and improve efficiency. The main difference between centrifugal fans and axial flow fans is how they use the centrifugal force or axial thrust generated by the rotation of the impeller to accelerate and guide the flow of gas. Centrifugal fans mainly generate centrifugal force through the rotation of the impeller, while axial flow fans directly push the gas to flow axially through the rotation of the impeller.

[0062] When the first fan 43 is arranged opposite to the air inlet 42, the first fan 43 plays the role of sucking the airflow in the first chamber 22 into the air duct 4, and blowing the airflow sucked into the air duct 4 to the rear wall surface of the inner tank 2 where the first evaporator 3 is located, so as to generate cold energy for refrigeration of the first chamber 22. The first fan 43 is arranged at the air inlet 42 and is arranged opposite to the air inlet 42. At this time, the air inlet direction of the first fan 43 is the same as the opening direction of the air inlet 42, so that the airflow in the first chamber 22 flows smoothly when entering the air duct 4. When the first fan 43 is a centrifugal fan, the air outlet direction of the first fan 43 is perpendicular to the air inlet direction, and the air outlet can be realized in a 360-degree circumferential direction in the vertical direction, so that the airflow in the first chamber 22 enters the air duct 4 from the first fan 43 and moves upward along the air outlet direction to the rear wall surface of the inner tank 2 where the first evaporator 3 is located, so as to perform refrigeration.

[0063] When the first fan 43 is arranged opposite to the air outlet 41, the first fan 43 plays the role of sucking the cold energy generated by the first evaporator 3 in the air duct 4 into the first fan 43, and then sending it into the first chamber 22 to cool the first chamber 22. The first fan 43 is arranged at the air outlet 41 and is arranged opposite to the air outlet 41. At this time, the air inlet direction and the air outlet direction of the first fan 43 are the same as the opening direction of the air outlet 41. The cold energy generated by the first evaporator 3 can be directly sucked into the first fan 43 along the air inlet direction of the first fan 43, and sent into the first chamber 22 along the air outlet direction, that is, the direction toward the first chamber 22, to achieve cooling of the first chamber 22.

[0064] Alternatively, if Figure 1 , Figure 2 and Figure 5 As shown, the refrigerator further includes a second fan 6, which is disposed in the second chamber 23 to allow the air flow in the second chamber 23 to circulate.

[0065] The second evaporator 5 is arranged on the rear wall of the second chamber 23. The surface of the inner tank 2 near the second evaporator 5 will continuously generate cold energy to cool the second chamber 23. The second fan 6 is arranged to blow the cold energy generated on the surface of the inner tank 2, so that the cold energy flows in the second chamber 23, and the temperature inside the second chamber 23 can be made more uniform. Moreover, in the existing direct cooling refrigerator, frost will appear on the side wall of the inner tank 2 where the evaporator is located. The arrangement of the second fan 6 allows the airflow in the second chamber 23 to flow, avoiding the situation where the surface temperature of the rear wall of the inner tank 2 corresponding to the position of the second evaporator 5 is too low and frost occurs, avoiding affecting the refrigeration of the second chamber 23, and achieving a better refrigeration effect on the food stored in the second chamber 23.

[0066] Alternatively, if Figure 2 and Figure 5 As shown, the second fan 6 is arranged in the second chamber 23 near the top wall and the rear wall.

[0067] The second fan 6 is arranged in the second chamber 23. When the second fan 6 is arranged at a position close to the top wall and the rear wall of the second chamber 23, the present application sets the air inlet direction and the air outlet direction of the second fan 6 to be parallel to the top wall and perpendicular to the rear wall. When the surface of the inner tank 2 where the second evaporator 5 is located generates cold energy, the second fan 6 blows the cold energy downward, firstly to promote the flow of cold energy in the second chamber 23, and secondly to avoid the frost on the surface of the inner tank 2. After the cold energy is blown downward by the second fan 6, a phenomenon similar to clockwise flow is formed in the second chamber 23. After the airflow flows to the top wall, it enters the second fan 6 again. The second fan 6 sends the airflow to the surface of the inner tank 2 where the second evaporator 5 is located again for refrigeration, thereby forming an airflow circulation in the second chamber 23, so that the temperature in the second chamber 23 is more uniform.

[0068] Optionally, the refrigerator further includes a controller, which is connected to the first fan 43 and the second fan 6 to control the start and stop time of the first fan 43 and the second fan 6.

[0069] The controller can control the first fan 43 and the second fan 6 to be turned on at the same time, or can control the first fan 43 or the second fan 6 to be turned on separately, and can also control the turn-on time of the first fan 43 and the second fan 6 separately. The refrigerator is provided with temperature sensors in the first chamber 22 and the second chamber 23. According to the difference between the current temperature of the first chamber 22 and the second chamber 23 obtained by the sensor and the target temperature, the controller controls the turn-on and continuous turn-on time of the first fan 43 and the second fan 6, and can also control the working speed and other parameters of the first fan 43 and the second fan 6.

[0070] Optionally, the first evaporator 3 and the second evaporator 5 are aluminum plate coil evaporators or inflation evaporators.

[0071] The aluminum plate coil evaporator is an evaporator including an evaporating tube and a heat sink. Convection holes are regularly arranged on the heat sink, and the position and number of convection holes between layers correspond to each other. Due to the presence of convection holes, air can form a large interlayer convection cycle between each layer of evaporators, so that the air inside the compartment can be cooled faster. The heat exchange efficiency of the aluminum plate coil evaporator is high, the refrigeration effect of the refrigerated and frozen compartment is greatly improved, and the power consumption is significantly reduced. In addition, the installation of the plate and tube evaporator is relatively convenient. The aluminum plate coil evaporator is made entirely of aluminum, which is not easy to rust and has no welding points to avoid leakage and ice blockage. The evaporating tube and the heat sink are bonded together with a film, which increases the contact area between the heat exchange tube and the heat exchange plate, increases the heat exchange area, and thus improves the heat exchange efficiency and reduces the energy consumption of the refrigerator. The plate and tube evaporator of this structure has the advantages of good plate and tube bonding, sufficient heat exchange, stable internal volume, low moisture and impurity content, and fast refrigeration speed.

[0072] The inflation evaporator uses a printed pipeline between two aluminum plates. After calendering, the unprinted part is hot-pressed together, and then inflated into a main path by high pressure. This evaporator is installed on the upper part of the rear wall of the refrigerator in the form of a flat plate. The inflation evaporator is made of raw materials such as aluminum sheets and copper-aluminum tubes. Aluminum has better thermal conductivity and better refrigeration, corrosion resistance, and high safety. The refrigeration efficiency is high. Aluminum will form a layer of aluminum oxide film in the air to protect the inside of the aluminum from further oxidation. Therefore, aluminum has strong oxidation resistance and higher safety. The first evaporator 3 and the second evaporator 5 are aluminum plate coil evaporators or inflation evaporators, which can achieve better refrigeration effects.

[0073] Alternatively, if Figure 2 and Figure 5As shown, the refrigerator also includes a first drainage channel 7 and a second drainage channel 8. One end of the first drainage channel 7 is connected to the first chamber 22, and the other end is connected to the bottom of the inner tank 2; one end of the second drainage channel 8 is connected to the second chamber 23, and the other end is connected to the bottom of the inner tank 2.

[0074] During the refrigeration process of the first chamber 22 and the second chamber 23, the surface temperature of the inner tank 2 corresponding to the position of the first evaporator 3 and the second evaporator 5 is low, and the temperature inside the first chamber 22 and the second chamber 23 is higher than the temperature of the surface of the inner tank 2. The hot air inside the chamber may condense and produce condensed water when it hits the surface of the inner tank 2 with a lower temperature. Alternatively, the surface temperature of the inner tank 2 corresponding to the first evaporator 3 and the second evaporator 5 is too low, and a small amount of frosting occurs. Under the blowing of the first fan 43 and the second fan 6, defrosting occurs, and the defrosted water can be discharged from the first chamber 22 through the first drainage channel 7 and the second drainage channel 8 to the second chamber 23, respectively, to avoid the defrosted water from remaining in the first chamber 22 or the second chamber 23, and to avoid affecting the refrigeration of the first chamber 22 and the second chamber 23. A compressor compartment is provided at the bottom of the refrigerator inner tank 2, and a water receiving tray is provided in the compressor compartment. The other ends of the first drainage channel 7 and the second drainage channel 8 are connected to the water receiving tray, and the defrosted water flows into the water receiving tray and is discharged to the outside of the refrigerator.

[0075] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A refrigerator, characterized in that: include: Box; An inner liner is disposed in the box body and defines a storage chamber; A first evaporator is disposed between the box body and the inner tank and is disposed on the rear wall of the storage chamber; The air duct is arranged inside the storage chamber, arranged on the rear wall of the storage chamber, and is provided with an air outlet and an air inlet toward the storage chamber to connect the storage chamber and the air duct; The first fan is arranged in the air duct.

2. The refrigerator according to claim 1, characterized in that: The storage chamber includes a first chamber and a second chamber, the first evaporator is arranged on the rear wall of the first chamber, the air duct is arranged inside the first chamber, and the refrigerator further includes: The second evaporator is arranged between the box body and the inner container and on the rear wall of the second chamber.

3. The refrigerator according to claim 1, characterized in that: The first fan is arranged opposite to the air inlet, and the first evaporator is arranged opposite to the air outlet.

4. The refrigerator according to claim 1, characterized in that: The first fan is arranged opposite to the air outlet, and the first evaporator is arranged opposite to the air inlet.

5. The refrigerator according to any one of claims 3 or 4, characterized in that: When the first fan is arranged opposite to the air inlet, the first fan is a centrifugal fan; When the first fan is arranged opposite to the air outlet, the first fan is an axial flow fan.

6. The refrigerator according to claim 1, characterized in that: Also includes: The second fan is arranged in the second room to circulate the air flow in the second room.

7. The refrigerator according to claim 6, characterized in that: The second fan is arranged in the second room near the top wall and the rear wall.

8. The refrigerator according to claim 6, characterized in that: Also includes: The controller is connected to the first fan and the second fan to control the start and stop time of the first fan and the second fan.

9. The refrigerator according to any one of claims 6 to 8, characterized in that: The first evaporator and the second evaporator are aluminum plate coil evaporators or inflation evaporators.

10. The refrigerator according to any one of claims 6 to 8, characterized in that: Also includes: A first drainage channel, one end of which is connected to the first chamber, and the other end of which is connected to the bottom of the inner tank; One end of the second drainage channel is connected to the second chamber, and the other end is connected to the bottom of the inner tank.

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