Refrigerator

Abstract

The refrigerator comprises a refrigerator body, an evaporator, a fan and a baffle assembly, wherein the evaporator is arranged in an evaporation chamber; the fan is used for sucking gas cooled by the evaporator from a suction inlet and respectively feeding the gas into a refrigerating chamber and a freezing chamber; the baffle assembly is integrated with the fan and is used for opening and closing the feeding of the gas into the freezing chamber; the baffle assembly comprises a baffle, a baffle driving part for driving the baffle to move back and forth in the axial direction of the fan and a sealing piece installed on the baffle driving part, a drainage device for draining dew is formed on the baffle driving part, and a baffle drainage hole for draining the dew is formed in the bottom of the baffle. According to the utility model, dew in the baffle assembly can be effectively discharged, and the normal action of the baffle is prevented from being influenced by the freezing of an internal driving structure caused by excessive freezing of the dew in the baffle assembly, so that the action reject ratio of the baffle can be reduced, and the working efficiency is improved. And an anti-freezing heater in the baffle assembly is not needed, so that the overall energy consumption and cost of the refrigerator are reduced.

Description

Technical Field

[0001] The utility model relates to a refrigerator. Background Art

[0002] In order to achieve separate refrigeration of the refrigerator compartment, separate refrigeration of the freezer compartment, and reduce the impact of defrosting heat on the freezer compartment, the applicant has previously disclosed a baffle air duct opening and closing device for a centrifugal fan suitable for a single system. Specifically, the existing baffle assembly is integrated with the centrifugal fan, the centrifugal fan is installed at the center of the baffle drive part of the baffle assembly, the circular baffle is installed on the inner side of the baffle drive part, and is driven by the baffle drive part to achieve opening and closing. A sealing ring is installed on the baffle drive part to achieve internal sealing, and three PET heaters are provided on the lower side of the sealing ring to inhibit the freezing of the circular baffle. In addition, the centrifugal fan and the baffle assembly are integrally installed in the freezer compartment air duct to match the refrigerator's air duct. During the refrigeration process of the refrigerator, the return air of the refrigerator is cooled and lowered through the evaporator, and then sucked in by the centrifugal fan through the suction port of the evaporation chamber, and is sent out from all sides of the fan's circumference, and sent to various compartments such as the refrigerator compartment and the freezer compartment through the air duct. When the refrigerator compartment is cooled separately, the refrigerator compartment baffle is opened, the circular baffle is in the closed position, the freezer compartment air duct is in the closed state, and the refrigerator compartment air outlet is arranged on the top of the circular baffle, so that the refrigerator compartment can be cooled separately. When the freezer compartment is cooled separately, the circular baffle is in the open position and the refrigerator compartment baffle is closed. When defrosting, the defrost heater is started, the circular baffle is in the closed position, and the refrigerator compartment baffle is opened, so as to increase the defrosting convection, improve the defrosting efficiency, and inhibit the heat from the evaporation chamber from invading the freezer compartment. As the anti-freezing design of the circular baffle, firstly, the centrifugal fan and the baffle assembly are integrally installed in the freezer compartment air duct, and the air duct cover plate dividing the freezer compartment air duct is not the traditional vertical installation design but has a certain inclination angle, which is conducive to the better discharge of defrosting condensation water. At the same time, a drainage hole is formed on the lower side of the front end of the circular baffle, and a drainage hole is also formed on the corresponding lower air duct cover plate, so that the condensation water can be directly discharged from the inner side of the circular baffle into the evaporation chamber.

[0003] However, due to the high overall sealing of the baffle assembly, the internal and external wind pressure is relatively large when the baffle is in the closed position, and the baffle drive part is not a completely sealed structure. During defrosting, a small amount of high-humidity gas will leak into the inside of the baffle and condense. Although a PET heater is provided inside the baffle, the internal drive structure of the baffle is complex, and the condensation water cannot be completely discharged and continues to accumulate, causing the internal drive structure to freeze, thereby affecting the movement of the baffle. Utility Model Content

[0004] The utility model is completed in view of the above-mentioned problems and is further optimized on the basis of the existing baffle assembly. Its purpose is to provide a refrigerator that can effectively discharge condensation water inside the baffle assembly, prevent the internal driving structure from freezing due to excessive condensation water in the baffle assembly and affect the normal operation of the baffle, thereby reducing the defective rate of baffle operation, and can reduce the overall energy consumption and cost of the refrigerator by not requiring an anti-freeze heater inside the baffle assembly such as a PET heater.

[0005] In order to achieve the above-mentioned purpose, the refrigerator involved in the utility model includes a box body, an evaporator of an evaporation chamber arranged in the box body, a fan that sucks the gas cooled by the evaporator from the suction port of the evaporation chamber and sends it to the refrigerating chamber and the freezing chamber through the refrigerating chamber air duct and the freezing chamber air duct respectively, and a baffle assembly that is integrated with the fan and opens and closes the delivery of the gas to the freezing chamber, the baffle assembly includes a baffle, a baffle driving part that drives the baffle to move back and forth along the axial direction of the fan, and a sealing member installed on the baffle driving part, the baffle driving part is formed with a drainage device for discharging condensation water, and the bottom of the baffle is formed with a baffle drainage hole for discharging condensation water. In this way, by utilizing a simple structure in which a drainage device for discharging condensation water is formed in the baffle driving part and a baffle drainage hole for discharging condensation water is formed at the bottom of the baffle, the condensation water inside the baffle assembly can be effectively discharged, thereby preventing the internal driving structure from freezing due to excessive freezing of condensation water in the baffle assembly and affecting the normal operation of the baffle, thereby reducing the defective rate of baffle operation and reducing the overall energy consumption and cost of the refrigerator by eliminating the need for an anti-freeze heater inside the baffle assembly.

[0006] In the refrigerator involved in the above-mentioned utility model, the baffle driving part may also include a main body and a driving wheel arranged in the main body, and the driving wheel rotates to drive the baffle to move back and forth along the axial direction of the fan, and the drainage device includes: a plurality of drainage structures of a plurality of first ribs respectively formed inside the main body; a main body drainage hole formed at the bottom of the main body; and a first drainage hole and a second drainage hole formed on the second rib on the inner side of the driving wheel, when the baffle moves to a closed position to close the gas supply to the freezer chamber, the first drainage hole is located at the lowest point of the driving wheel, and when the baffle moves to an open position to open the gas supply to the freezer chamber, the second drainage hole is located at the lowest point of the driving wheel.

[0007] In the refrigerator involved in the above-mentioned utility model, the multiple drainage structures can also be a first drainage structure, a second drainage structure and a third drainage structure from top to bottom, and the first drainage structure, the second drainage structure and the third drainage structure are respectively composed of notches formed on each of the first ribs, and the horizontal angle of the surface of the first rib at the notch relative to the horizontal plane is greater than 5° and less than 90°.

[0008] In the refrigerator involved in the above-mentioned utility model, the fan and the baffle assembly can also be arranged in the freezer compartment air duct, and at least a portion of the air duct cover plate dividing the freezer compartment air duct corresponding to the fan and the baffle assembly is inclined relative to a horizontal plane, and a cover drainage hole is formed on the air duct cover plate for discharging condensation water discharged from the baffle into the evaporation chamber.

[0009] In the refrigerator according to the present invention, the baffle may be inclined relative to a horizontal plane.

[0010] In the refrigerator involved in the above-mentioned utility model, a refrigerating chamber air outlet may be formed on the top of the baffle.

[0011] In the refrigerator according to the utility model, the baffle plate drain hole may include a third drain hole and a fourth drain hole respectively formed at the front end side and the rear end side of the bottom of the baffle plate.

[0012] In the refrigerator according to the present invention, the third drain hole and the fourth drain hole may be formed in a semicircular shape.

[0013] In the refrigerator according to the present invention described above, the fan may be a centrifugal fan.

[0014] In the refrigerator involved in the above-mentioned utility model, when the baffle moves to the closed position for closing the gas from being supplied to the freezer compartment, the baffle covers the air outlet of the fan along the circumference of the fan, and when the baffle moves to the open position for opening the gas from being supplied to the freezer compartment, the baffle is stored on the inner side of the baffle driving unit.

[0015] According to the utility model, a refrigerator can be provided which can effectively discharge condensation water inside the baffle assembly and prevent the internal driving structure from freezing due to excessive freezing of condensation water inside the baffle assembly and affecting the normal operation of the baffle, thereby reducing the defective rate of baffle operation and reducing the overall energy consumption and cost of the refrigerator by not requiring an anti-freeze heater inside the baffle assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the present invention will be more clearly understood through the following detailed description in conjunction with the accompanying drawings, in which:

[0017] Figure 1 The figure is a schematic diagram showing an air passage formed by a centrifugal fan and a baffle assembly of the refrigerator according to the present embodiment.

[0018] Figure 2 It is a cross-sectional view showing a schematic structure of a centrifugal fan and a damper assembly of the refrigerator according to the present embodiment (the damper is in a closed position).

[0019] Figure 3 It is a cross-sectional view showing a schematic structure of a centrifugal fan and a damper assembly of the refrigerator according to the present embodiment (the damper is in an open position).

[0020] Figure 4 The figure is an exploded perspective view showing a schematic structure of a centrifugal fan, a baffle assembly, and an air duct cover of the refrigerator according to the present embodiment.

[0021] Figure 5 It is a perspective view showing a schematic structure of a centrifugal fan and a damper assembly of the refrigerator according to the present embodiment (the damper is in a closed position).

[0022] Figure 6 It is a perspective view showing a schematic structure of a centrifugal fan and a damper assembly of the refrigerator according to the present embodiment (the damper is in an open position).

[0023] Figure 7 It is an exploded perspective view showing a schematic structure of a centrifugal fan and a baffle assembly of a refrigerator according to the present embodiment.

[0024] Figure 8 The schematic diagram shows a schematic structure of the interior of a shutter driving unit of the shutter assembly of the refrigerator according to the present embodiment.

[0025] Fig. 9 It is a perspective view showing a schematic structure of a baffle of a baffle assembly of a refrigerator according to the present embodiment.

[0026] Fig.10 The diagram is a perspective view showing a schematic structure of a driving wheel of a shutter driving unit of a shutter assembly of a refrigerator according to the present embodiment.

[0027] Fig.11 It is a schematic diagram of the drainage pattern of the damper assembly of the refrigerator involved in this embodiment (the damper is in the closed position).

[0028] Fig.12 It is a schematic diagram of the drainage pattern of the damper assembly of the refrigerator involved in this embodiment (the damper is in the open position). DETAILED DESCRIPTION

[0029] Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention is described in detail. In the description of the accompanying drawings, the same or equivalent elements are marked with the same symbols, and repeated descriptions are omitted. In addition, the positional relationship of up, down, left, right, etc. is not specifically described based on the positional relationship shown in the drawings. In addition, the dimensional ratio of the drawings is not limited to the ratio shown in the drawings except for the drawing.

[0030] In this specification, it should be understood that terms such as “includes,” “comprising,” and “having” refer to the existence of features, quantities, steps, operations, elements, parts, or a combination thereof, but do not exclude the existence of one or more other features, quantities, steps, operations, elements, parts, or a combination thereof.

[0031] Figure 1 The figure is a schematic diagram showing an air passage formed by a centrifugal fan and a baffle assembly of the refrigerator according to the present embodiment. Figure 2 It is a cross-sectional view showing a schematic structure of a centrifugal fan and a damper assembly of the refrigerator according to the present embodiment (the damper is in a closed position). Figure 3 It is a cross-sectional view showing a schematic structure of a centrifugal fan and a damper assembly of the refrigerator according to the present embodiment (the damper is in an open position). Figure 4 The figure is an exploded perspective view showing a schematic structure of a centrifugal fan, a baffle assembly, and an air duct cover of the refrigerator according to the present embodiment. Figure 5 It is a perspective view showing a schematic structure of a centrifugal fan and a damper assembly of the refrigerator according to the present embodiment (the damper is in a closed position). Figure 6 It is a perspective view showing a schematic structure of a centrifugal fan and a damper assembly of the refrigerator according to the present embodiment (the damper is in an open position). Figure 7 It is an exploded perspective view showing a schematic structure of a centrifugal fan and a baffle assembly of a refrigerator according to the present embodiment. Figure 8 The schematic diagram shows a schematic structure of the interior of a shutter driving unit of the shutter assembly of the refrigerator according to the present embodiment. Fig. 9 It is a perspective view showing a schematic structure of a baffle of a baffle assembly of a refrigerator according to the present embodiment. Fig.10 The diagram is a perspective view showing a schematic structure of a driving wheel of a shutter driving unit of a shutter assembly of a refrigerator according to the present embodiment.

[0032] Fig.11 It is a schematic diagram of the drainage pattern of the damper assembly of the refrigerator involved in this embodiment (the damper is in the closed position). Fig.12 It is a schematic diagram of the drainage pattern of the damper assembly of the refrigerator involved in this embodiment (the damper is in the open position).

[0033] like Figure 1 to Figure 4As shown, the refrigerator includes a cabinet (not shown), an evaporator 302 arranged in an evaporation chamber 301 in the cabinet, a centrifugal fan 701 that sucks the gas cooled by the evaporator 302 from the suction port of the evaporation chamber 301 and delivers the gas to the refrigerating chamber 201 and the freezing chamber 203 via the refrigerating chamber air duct (not shown) and the freezing chamber air duct 204 respectively, and a baffle assembly 403 that is integrated with the fan 701 and opens and closes the delivery of gas to the freezing chamber 203.

[0034] like Figure 5 to Figure 7 As shown, the baffle assembly 403 includes a substantially cylindrical baffle 702, a baffle driving unit that drives the baffle 702 to move forward and backward along the axial direction of the fan 701, and a seal 703 mounted on the baffle driving unit. The baffle driving unit includes a main body 705 and a driving wheel 1101 disposed in the main body 705. The driving wheel 1101 performs a rotational motion, thereby driving the baffle 702 to move forward and backward along the axial direction of the fan 701. Here, the seal 703 is preferably a substantially annular sealing ring.

[0035] like Figure 8 As shown, a drainage device for draining condensed water is formed in the main body 705 of the baffle driving part. Specifically, the drainage device includes a plurality of drainage structures 1201, 1202, 1204 of a plurality of first ribs respectively formed inside the main body 705 and a main body drainage hole 1203 formed at the bottom of the main body 705.

[0036] In addition, if Fig.10 As shown, the drainage device also includes a first drainage hole 1401 and a second drainage hole 1402 formed on the second rib on the inner side of the driving wheel 1101. When the baffle 702 moves to the frontmost position, i.e., the closed position for closing the gas supply to the freezing chamber 203, the first drainage hole 1401 is located at the lowest point of the driving wheel 1101, and when the baffle 702 moves to the initial position, i.e., the open position for opening the gas supply to the freezing chamber 203, the second drainage hole 1402 is located at the lowest point of the driving wheel 1101. In this way, by providing drainage holes at the lowest points when the baffle on the driving wheel is in the closed position and the open position, the condensed water on the right side of the driving wheel can also be quickly discharged, which can ensure the normal operation of the driving wheel.

[0037] In addition, if Fig. 9 As shown, at the bottom of the baffle 702, a baffle drain hole 1301 is formed to discharge condensed water.

[0038] In this way, by utilizing a simple structure in which a drainage device for discharging condensation water is formed in the baffle driving part and a baffle drainage hole for discharging condensation water is formed at the bottom of the baffle, the condensation water inside the baffle assembly can be effectively discharged, thereby preventing the internal driving structure from freezing due to excessive freezing of condensation water in the baffle assembly and affecting the normal operation of the baffle, thereby reducing the defective rate of baffle operation and reducing the overall energy consumption and cost of the refrigerator by eliminating the need for an anti-freeze heater inside the baffle assembly.

[0039] In addition, the baffle assembly 403 is integrated with the fan 701, and the fan 701 is installed at the center of the main body 705 of the baffle driving part when viewed along the axial direction of the fan 701. The baffle 702 is installed inside the main body 705 of the baffle driving part and is driven by the driving wheel 1101 to open and close.

[0040] In addition, the fan 701 and the baffle assembly 403 are installed as a whole in the freezer air duct 204 to match the air duct of the refrigerator. During the refrigeration process of the refrigerator, the return air of the refrigerator is cooled by the evaporator 302, and then sucked by the fan 701 through the suction port of the evaporation chamber 301, and sent out from the four sides of the fan 701, and sent to the refrigerator, freezer and other compartments through the air duct 204. When the refrigerator 201 is refrigerated, the refrigerator baffle 202 is opened, the baffle 702 is in the closed position, the freezer air duct 204 is in a closed state, and a refrigerator air outlet 706 is provided on the top of the baffle 702, so that the refrigerator 201 can be refrigerated separately. When the freezer 203 is refrigerated, the baffle 702 is in the open position, and the refrigerator baffle 202 is closed. During defrosting, the defrost heater 303 is started, the baffle 702 is in the closed position, and the refrigerating chamber baffle 202 is opened, so as to increase the defrosting convection, improve the defrosting efficiency, and inhibit the heat of the evaporation chamber 301 from invading the freezing chamber 203.

[0041] In addition, the fan 701 and the baffle assembly 403 are installed as a whole in the freezer air duct 204, and at least a portion of the air duct cover plates 401 and 402 that divide the freezer air duct 204 corresponding to the fan 701 and the baffle assembly 403 is inclined relative to the horizontal plane. In addition, the air duct cover plate 401 is formed with a cover plate drainage hole 903 for discharging the condensed water discharged from the baffle 702 into the evaporation chamber 301. In this way, by making at least a portion of the air duct cover plate that divides the freezer air duct corresponding to the fan and the baffle assembly inclined relative to the horizontal plane, it is beneficial to better discharge the defrosted condensed water. Moreover, the air duct cover plate 401 of the corresponding lower freezer chamber 203 is also provided with a drainage hole 903, so that the condensed water can be directly discharged from the inner side of the baffle 702 into the evaporation chamber 301.

[0042] In this embodiment, the plurality of drainage structures 1201, 1202, 1204 are respectively the first drainage structure 1201, the second drainage structure 1202 and the third drainage structure 1204 from top to bottom, and the first drainage structure 1201, the second drainage structure 1202 and the third drainage structure 1204 are respectively formed by notches formed in a plurality of first convex ribs. In addition, the surface of the first convex rib at the notch has a horizontal angle of not less than 5° and not more than 90° relative to the horizontal plane. In this way, the condensed water can be discharged more smoothly, and the normal operation of the baffle driving unit can be more reliably ensured.

[0043] In the present embodiment, the fan and the baffle assembly are provided as a whole in the freezer compartment air duct. However, the present invention is not limited thereto, and the fan and the baffle assembly may be provided as a whole in, for example, the refrigerator compartment air duct.

[0044] In addition, in this embodiment, if Figure 2 As shown, baffle 702 is inclined relative to the horizontal plane.

[0045] In this embodiment, a refrigerating chamber air outlet is formed on the top of the baffle, so that when the refrigerating chamber is refrigerated separately, the baffle is in a closed position, realizing separate refrigeration of the refrigerating chamber and improving the cooling efficiency. When the baffle is in a closed position during defrosting, the influence of defrosting heat on the freezing chamber is reduced, and the defrosting efficiency is improved. In addition, when the baffle is in a closed position, a sealing sponge can also be provided at the matching position of the corresponding freezing chamber cover plate, and the sealing sponge is compressed when the baffle is in a closed position, which can minimize the air volume leakage at the matching part. A sealing matching structure can also be provided between the baffle and the air duct cover plate of the freezing chamber in the direction of the refrigerating chamber air outlet, so that the gap can be reduced, the leakage wind resistance can be increased, and the overall sealing of the baffle can be improved. In addition, the baffle is designed to have a certain inclination angle relative to the horizontal plane, and drainage holes are formed at the bottom of the baffle and the corresponding air duct cover plate of the freezing chamber below, so that when defrosting, the condensation water invading the baffle and the surrounding can be quickly discharged to the evaporation chamber, which can effectively reduce the poor movement caused by the residual frost on the baffle.

[0046] In this embodiment, the baffle plate drain hole may include a baffle plate drain hole 902 formed at the front end side of the bottom of the baffle plate 702 in addition to the above-mentioned baffle plate drain hole 1301 formed at the rear end side of the bottom of the baffle plate 702. Here, the baffle plate drain hole 1301 and the baffle plate drain hole 902 are respectively referred to as the third drain hole 1301 and the fourth drain hole 902.

[0047] In addition, the third drainage hole 1301 and the fourth drainage hole 902 are formed in a semicircular shape. In this way, a semicircular drainage hole is provided at the bottom of the baffle, and when the baffle is in the open position, the internal drainage can be ensured to be smooth, and condensation water is prevented from being retained and frozen, which affects the normal opening and closing of the baffle.

[0048] In the present embodiment, the fan is a centrifugal fan, but the invention is not limited thereto, and the fan may be a fan of any structure as long as it can suck gas from the evaporation chamber and discharge the gas to each compartment of the refrigerator.

[0049] In this embodiment, the damper 702 moves to the frontmost position, that is, the closed position for closing the gas supply to the freezing chamber (see Figure 2 , Figure 5 ), the baffle 702 covers the air outlet of the fan 701 along the circumference of the fan 701. When the baffle 702 moves to the initial position, that is, the open position to open the air to the freezing chamber (refer to Figure 3 , Figure 6 ), the baffle 702 is stored inside the baffle driving unit. In this way, the baffle can cover the wind direction of the air outlet of the fan for the entire week, can minimize the wind resistance of the wind path, and improve the utilization efficiency of the fan.

[0050] In this embodiment, if Fig.11 As shown, when the baffle is in the closed position, the left drainage path of the baffle driving unit is the first drainage structure → the second drainage structure 1202 → the third drainage structure 1204 → the main body drainage hole 1203 → the baffle drainage hole 1301 → the baffle driving unit external drainage hole, and the right drainage path of the baffle driving unit is the first drainage hole 1401 → the main body drainage hole 1203 → the baffle drainage hole 1301 → the driving unit external drainage hole. Fig.12 As shown, when the baffle is in the open position, the left drainage path of the baffle driving unit is the first drainage structure → the second drainage structure 1202 → the third drainage structure 1204 → the main body drainage hole 1203 → the fourth drainage hole 902 → the baffle driving unit external drainage hole 1601, and the right drainage path of the baffle driving unit is the second drainage hole 1402 → the main body drainage hole 1203 → the fourth drainage hole 902 → the baffle driving unit external drainage hole 1601. Such a structure ensures that the condensed water inside the baffle can be quickly discharged, and can prevent the abnormal movement of the baffle due to the freezing of the condensed water. Moreover, since there is no condensed water retention inside, the PET heater with an anti-freezing design can also be abolished at the same time, reducing the energy consumption and cost of the refrigerator.

[0051] According to the utility model, a refrigerator can be provided which can effectively discharge condensation water inside the baffle assembly and prevent the internal driving structure from freezing due to excessive freezing of condensation water inside the baffle assembly and affecting the normal operation of the baffle, thereby reducing the defective rate of baffle operation and reducing the overall energy consumption and cost of the refrigerator by not requiring an anti-freeze heater inside the baffle assembly.

[0052] The embodiments of the present invention are described above, but the present invention is not limited to the above embodiments. Those skilled in the art can modify and change the present invention as needed without departing from the essential spirit and scope of the present invention. These modifications and changes all fall within the scope of the present invention.

Claims

1. A refrigerator, characterized in that: The invention comprises a housing, an evaporator of an evaporation chamber arranged in the housing, a fan for sucking gas cooled by the evaporator from a suction port of the evaporation chamber and sending the gas to the refrigerating chamber and the freezing chamber through a refrigerating chamber air duct and a freezing chamber air duct respectively, and a baffle assembly integrated with the fan for opening and closing the gas to be sent to the freezing chamber, The baffle assembly includes a baffle, a baffle driving unit for driving the baffle to move forward and backward along the axial direction of the fan, and a sealing member installed on the baffle driving unit. The damper driving part is provided with a drainage device for discharging condensed water. A baffle drain hole for draining condensed water is formed at the bottom of the baffle.

2. The refrigerator according to claim 1, characterized in that: The baffle driving part includes a main body and a driving wheel arranged in the main body. The driving wheel rotates, thereby driving the baffle to move forward and backward along the axial direction of the fan. The drainage device comprises: A plurality of drainage structures of a plurality of first ribs respectively formed inside the main body; a main body drainage hole formed at the bottom of the main body; and a first drainage hole and a second drainage hole formed on a second rib on the inner side of the driving wheel, When the baffle moves to a closed position to close the gas supply to the freezer chamber, the first drainage hole is located at the lowest point of the drive wheel. When the baffle moves to an open position to open the gas supply to the freezer chamber, the second drainage hole is located at the lowest point of the drive wheel.

3. The refrigerator according to claim 2, characterized in that: The multiple drainage structures are respectively a first drainage structure, a second drainage structure and a third drainage structure from top to bottom. The first drainage structure, the second drainage structure and the third drainage structure are respectively formed by notches formed in the first ribs. The horizontal angle of the surface of the first rib at the notch relative to the horizontal plane is greater than 5° and less than 90°.

4. The refrigerator according to any one of claims 1 to 3, characterized in that: The fan and the baffle assembly are arranged as a whole in the freezing chamber air duct. At least a portion of the air duct cover plate that divides the air duct of the freezing chamber corresponding to the fan and the baffle assembly is inclined relative to a horizontal plane, The air duct cover plate is formed with a cover plate drain hole for draining condensation water discharged from the baffle plate into the evaporation chamber.

5. The refrigerator according to any one of claims 1 to 3, characterized in that: The baffle is inclined relative to a horizontal plane.

6. The refrigerator according to any one of claims 1 to 3, characterized in that: An air outlet for the refrigerating chamber is formed on the top of the baffle.

7. The refrigerator according to any one of claims 1 to 3, characterized in that: The baffle plate drainage holes include a third drainage hole and a fourth drainage hole respectively formed at a front end side and a rear end side of a bottom portion of the baffle plate.

8. The refrigerator according to claim 7, characterized in that: The third drainage hole and the fourth drainage hole are formed in a semicircular shape.

9. The refrigerator according to any one of claims 1 to 3, characterized in that: The fan is a centrifugal fan.

10. The refrigerator according to any one of claims 1 to 3, characterized in that: When the baffle moves to the closing position for closing the gas from entering the freezing chamber, the baffle covers the air outlet of the fan along the circumference of the fan. When the damper moves to an open position at which the gas is shut off from being fed into the freezing chamber, the damper is accommodated inside the damper driving unit.

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