Refrigerator

Abstract

The utility model provides a refrigerator which comprises a refrigerator body, and the refrigerator body comprises a first chamber and a second chamber; the air supply duct is arranged between the first chamber and the second chamber; the air supply duct is divided into a first chamber and a second chamber which are not communicated with each other through a partition plate; the first chamber is provided with a guide plate and a first air outlet; an air inlet duct and an air outlet duct are formed in the first cavity through a flow guide plate, and the first air outlet is formed in the air outlet duct; the second chamber is provided with a second air outlet; the first chamber is communicated with the first chamber through the first air outlet; the second chamber is communicated with the second compartment through the second air outlet; the first chamber comprises a refrigeration cavity; an evaporator is arranged in the refrigeration chamber; and the refrigeration chamber is connected with the air supply duct. The first air outlet is formed in the flow guide plate, the position of the first air outlet is lower than the opening position of the air outlet duct, and when the evaporator defrosts, high-temperature air is delayed to overflow into the compartment, so that the defrosting temperature rise is effectively reduced, and the problems that the evaporator of the refrigerator defrosts and the temperature of the compartment of the refrigerator rises are solved.

Description

Technical Field

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

[0002] As an indispensable electrical appliance in the daily life of a family, the functions and performance of the refrigerator are constantly improving. Air-cooled refrigerators have been recognized for their excellent refrigeration and freezing effects, as well as relatively uniform temperature distribution. Air-cooled refrigerators achieve air circulation and refrigeration in the refrigerator through the cooperation of the built-in evaporator and the fan. The air in the refrigerator flows through the built-in evaporator. Due to the high air temperature and the low evaporator temperature, heat exchange occurs between the two, which reduces the air temperature. The cold air is blown to the storage room in the refrigerator through the built-in fan, thereby realizing the refrigerator's refrigeration or freezing function and maintaining the freshness of the food in the storage room.

[0003] However, the evaporator, air duct and other components of the air-cooled refrigerator are usually located at the back of the cabinet, which makes them occupy a part of the volume in the depth direction of the refrigerator. This design not only limits the depth of the storage room and reduces the available space of the refrigerator, but also with the increasing demand for applications such as refrigerators embedded in cabinets, the depth of the refrigerator cabinet is further compressed, resulting in a serious impact on the volume of the refrigerator. At the same time, when the evaporator is defrosted, the hot air in the refrigeration chamber will enter the air duct from the fan inlet and enter the compartment from the air outlet along the air duct chamber, which will cause the compartment temperature to rise, which is not conducive to freshness preservation. Utility Model Content

[0004] The present application provides a refrigerator to solve the problem of defrosting of the refrigerator evaporator and increasing the temperature of the refrigerator compartment.

[0005] The present application provides a refrigerator, comprising:

[0006] A box body, the box body comprising a first chamber and a second chamber; the first chamber and the second chamber are symmetrically arranged along the vertical direction;

[0007] an air supply duct disposed between the first chamber and the second chamber;

[0008] The air supply duct is divided into a first chamber and a second chamber which are not connected to each other by a partition plate;

[0009] The first chamber is provided with a plurality of guide plates and a plurality of first air outlets; the first chamber forms an air inlet duct and a plurality of air outlet ducts through the plurality of guide plates, and the first air outlet is provided in the air outlet duct;

[0010] The second chamber is provided with a plurality of second air outlets;

[0011] The first chamber is connected to the first compartment through the first air outlet;

[0012] The second chamber is communicated with the second room through the second air outlet.

[0013] The first chamber comprises a refrigeration chamber; the refrigeration chamber is a groove formed by the first chamber being concave outwardly on one side close to the second chamber; an evaporator is arranged in the refrigeration chamber, and the refrigeration chamber is connected to the air supply duct.

[0014] Optionally, a defrost heater is provided in the refrigeration chamber; the evaporator is connected to the defrost heater; a first refrigeration air outlet and a second refrigeration air outlet are provided at one end of the refrigeration chamber close to the air supply duct; a first air inlet and a second air inlet are also provided at one end of the air supply duct close to the refrigeration chamber, the first refrigeration air outlet is connected to the first air inlet, and the second refrigeration air outlet is connected to the second air inlet.

[0015] Optionally, any one of the guide plates includes a first guide plate and a second guide plate; one end of the first guide plate is connected to the partition plate, and the other end of the first guide plate is connected to the second guide plate; the first guide plate extends in a direction away from the first air inlet and forms a first angle with the partition plate. The second guide plate extends in a direction away from the first air inlet and forms a second angle with the partition plate, and the first angle is greater than the second angle.

[0016] Optionally, a distance between any adjacent first guide plates is a first distance, a distance between any adjacent second guide plates is a second distance, and the first distance is greater than the second distance.

[0017] Optionally, the air outlet duct includes a first air outlet duct and a second air outlet duct, the first air outlet duct is the area between the second guide plates, the second air outlet duct is the area between the first guide plates, the first air outlet duct is conical, and the end of the first air outlet duct with a larger opening is connected to the second air outlet duct.

[0018] Optionally, it also includes an electric damper, which is connected to the second air inlet.

[0019] Optionally, it also includes a side panel, an air duct cover and a fan; the side panel, the fan and the air duct cover are connected in sequence; the air duct cover is snapped on the fan to form a third air outlet and a fourth air outlet, the side panel is snapped on the refrigeration chamber, the third air outlet is connected to the first refrigeration air outlet, and the fourth air outlet is connected to the second refrigeration air outlet.

[0020] Optionally, it also includes a return air duct, the second chamber includes a second chamber return air port, the first chamber includes a refrigeration return air port, the side panel is provided with a first chamber return air port, the second chamber return air port is arranged on a side of the second chamber close to the first chamber; the refrigeration return air port is arranged below the evaporator; the first chamber return air port and the refrigeration return air port are at the same level; the second chamber return air port is connected to the refrigeration return air port through the return air duct.

[0021] Optionally, the number of the guide plates is the same as the number of the first air outlets.

[0022] Optionally, a heat-insulating component is further included, and the air supply duct is connected to the first chamber through the heat-insulating component.

[0023] It can be seen from the above technical scheme that the present application provides a refrigerator, including a box body, the box body including a first chamber and a second chamber; the first chamber and the second chamber are symmetrically arranged in the vertical direction; an air supply duct is arranged between the first chamber and the second chamber; the air supply duct is divided into a first chamber and a second chamber that are not connected to each other by a partition; the first chamber is provided with a plurality of guide plates and a plurality of first air outlets; the number of the guide plates is the same as the number of the first air outlets; the first chamber forms an air inlet duct and a plurality of air outlet ducts through the plurality of the guide plates, and the first air outlet is arranged in the air outlet duct; the second chamber is provided with a plurality of second air outlets; the first chamber is connected to the first chamber through the first air outlet; the second chamber is connected to the second chamber through the second air outlet; the first chamber includes a refrigeration chamber; the refrigeration chamber is a groove formed by the first chamber being concave outward on a side close to the second chamber; an evaporator is arranged in the refrigeration chamber. The first air outlet is arranged inside the guide plate, and the position of the first air outlet is lower than the height of the air inlet between the guide plates. When the evaporator is defrosted, the high-temperature air is delayed from overflowing into the compartment, and the defrosting temperature rise is effectively reduced, so as to solve the problem of defrosting the refrigerator evaporator and increasing the refrigerator compartment temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 A schematic diagram of the refrigerator structure provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the air supply duct structure provided in an embodiment of the present application;

[0027] Figure 3A cross-sectional view of an air supply duct provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of the assembly of the air supply duct and the refrigeration chamber provided in the embodiment of the present application;

[0029] Figure 5 A side view of a second chamber provided in an embodiment of the present application;

[0030] Figure 6 A rear view of a refrigerator provided in an embodiment of the present application;

[0031] Figure 7 This is a schematic diagram of the second chamber provided in an embodiment of the present application.

[0032] Reference numerals:

[0033] Among them, 1-first chamber; 2-second chamber; 212-return air outlet of the second chamber; 3-return air duct; 4-supply air duct; 41-side panel; 411-return air outlet of the first chamber; 42-air duct cover; 43-fan; 421-third air outlet; 422-fourth air outlet; 5-evaporator; 51-defrost heater; 6-supply air duct; 112-refrigeration chamber; 113-first refrigeration air outlet; 114-second refrigeration air outlet; 115- Refrigeration return air outlet; 61-first chamber; 62-second chamber; 611-first air inlet; 612-first air outlet; 613-partition; 614-guide plate; 6141-first guide plate; 6142-second guide plate; 615-air inlet duct; 616-air outlet duct; 6161-first air outlet duct; 6162-second air outlet duct; 621-second air inlet; 622-second air outlet; 63-electric damper; 64-insulation component. DETAILED DESCRIPTION

[0034] The following embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following embodiments do not represent all implementations consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as detailed in the claims.

[0035] As an indispensable electrical appliance in the daily life of a family, the functions and performance of refrigerators are constantly improving. Air-cooled refrigerators have been recognized for their excellent refrigeration and freezing effects, as well as relatively uniform temperature distribution. Air-cooled refrigerators achieve air circulation and refrigeration in the refrigerator through the cooperation of built-in evaporators and fans. Air-cooled refrigerators allow the air in the refrigerator to flow through the built-in evaporator. Due to the high air temperature and low evaporator temperature, heat exchange occurs between the two, which reduces the temperature of the air. The cold air is blown to the storage room in the refrigerator through the built-in fan, thereby realizing the refrigeration or freezing function of the refrigerator and maintaining the freshness of the food in the storage room. However, the evaporator, air duct and other components of air-cooled refrigerators are usually located at the back of the cabinet, which makes them occupy part of the volume in the depth direction of the refrigerator. This design not only limits the depth of the storage room and reduces the available space of the refrigerator, but also with the increase in the demand for applications such as refrigerators embedded in cabinets, the depth of the refrigerator cabinet is further compressed, resulting in a serious impact on the volume of the refrigerator. At the same time, when the evaporator is defrosting, the hot air in the refrigeration chamber 112 will enter the air duct from the fan air inlet and enter the compartment from the air outlet along the air duct chamber, which will cause the compartment temperature to rise, which is not conducive to preservation.

[0036] To solve the problem of defrosting the refrigerator evaporator and increasing the refrigerator compartment temperature, refer to Figure 1-Figure 3 , an embodiment of the present application provides a refrigerator, comprising:

[0037] The box body includes a first chamber 1 and a second chamber 2; the first chamber 1 and the second chamber 2 are symmetrically arranged along the vertical direction. The first chamber 1 and the second chamber 2 can be used as a refrigerating chamber and a freezing chamber, for example, the first chamber 1 is a refrigerating chamber and the second chamber 2 is a freezing chamber, or the first chamber 1 is a freezing chamber and the second chamber 2 is a refrigerating chamber.

[0038] The air supply duct 6 is arranged between the first chamber 1 and the second chamber 2. The air supply duct 6 is arranged between the first chamber 1 and the second chamber 2, so that the air supply duct 6 can reduce the situation that the rear wall of the refrigerator is occupied by the air supply duct 6, and the depth space of the refrigerator is increased.

[0039] like Figure 3 As shown, the air supply duct 6 is divided into a first chamber 61 and a second chamber 62 which are not connected to each other by a partition 613. The first chamber 61 is provided with a plurality of guide plates 614 and a plurality of first air outlets 612; the first chamber 61 forms an air inlet duct 615 and a plurality of air outlet ducts 616 through a plurality of guide plates 614, and the first air outlet 612 is arranged in the air outlet duct 616; the second chamber 62 is provided with a plurality of second air outlets; the first chamber 61 is connected to the first chamber 1 through the first air outlet 612; the second chamber 62 is connected to the second chamber 2 through the second air outlet.

[0040] The air supply duct 6 is connected to the first chamber 1 through a plurality of first air outlets 612, and a plurality of second air outlets are connected to the second chamber 2. The cold air entering the air supply duct 6 can be discharged from the first air outlet 612 into the first chamber 1, and from the second air outlet into the second chamber 2. At the same time, the air supply duct 6 is divided into a first chamber 61 and a second chamber 62 which are not connected to each other by a partition 613, so as to provide cooling to the first chamber 1 and the second chamber 2 respectively.

[0041] Referring again to FIG. 3 , a plurality of guide plates 614 are provided in the first chamber 61, and the first chamber 61 is divided into an air inlet duct 615 and an air outlet duct 616 by the guide plates 614. The first air outlet 612 is provided in the air outlet duct 616. When the evaporator 5 is defrosted, the temperature of the defrost heater 51 is relatively high, and the gas with relatively high temperature will enter the first chamber 61, and then enter the first chamber 1 through the first air outlet 612, so that the temperature of the first chamber 1 is increased. The first air outlet 612 is provided in the air outlet duct 616 formed by the guide plates 614. By utilizing the principle that hot air floats up and cold air sinks, the high-temperature gas can be effectively reduced from entering the first chamber 1 through the first air outlet 612, thereby solving the problem of the temperature increase of the first chamber 1 when the evaporator 5 is defrosted.

[0042] See also Figure 4 The first chamber 1 includes a refrigeration chamber 112; the refrigeration chamber 112 is a groove formed by the first chamber 1 being concave outward on one side close to the second chamber 2; an evaporator 5 is arranged in the refrigeration chamber 112, and the refrigeration chamber 112 is connected to the air supply duct 6.

[0043] By connecting the refrigeration chamber 112 to the air supply duct 6, the cold energy generated by the evaporator 5 can be transported to the air supply duct 6. At the same time, since the refrigeration cavity 112 is arranged on one side of the first chamber 1, the space utilization rate of the refrigerator can be improved.

[0044] In some embodiments, see again Figure 4 , a defrost heater 51 is arranged in the refrigeration chamber 112; the evaporator 5 is connected to the defrost heater 51; a first refrigeration air outlet 113 and a second refrigeration air outlet 114 are arranged at one end of the refrigeration chamber 112 close to the air supply duct 6; a first air inlet 611 and a second air inlet 621 are also arranged at one end of the air supply duct 6 close to the refrigeration chamber 112, the first refrigeration air outlet 113 is connected to the first air inlet 611, and the second refrigeration air outlet 114 is connected to the second air inlet 621. Among them, arranging the evaporator 5 and the defrost sensor in the refrigeration chamber 112 can improve the space utilization rate of the refrigerator. When the evaporator 5 is working, it evaporates and takes away heat, thereby obtaining gas with a lower temperature, and the cold air is discharged into the first chamber 61 and the second chamber 62 through the first refrigeration air outlet 113 and the second refrigeration air outlet 114.

[0045] In some embodiments, Figure 3 As shown, any guide plate 614 includes a first guide plate 6141 and a second guide plate 6142; one end of the first guide plate 6141 is connected to the partition plate 613, and the other end of the first guide plate 6141 is connected to the second guide plate 6142; the first guide plate 6141 extends in a direction away from the first air inlet 611 and forms a first angle with the partition plate 613. The second guide plate 6142 extends in a direction away from the first air inlet 611 and forms a second angle with the partition plate 613, and the first angle is greater than the second angle. Among them, the first guide plate 6141 extends in a direction away from the first air inlet 611 and forms a first angle with the partition plate 613. When the gas with a higher temperature enters the air inlet duct 615, the first guide plate 6141 is inclined upward, which can guide the hot air to rise while making it difficult for the hot air to enter the air outlet duct 616, thereby increasing the moving path of the hot air in the first chamber 61, so that the hot air is not easy to enter the air outlet duct 616. The second guide plate 6142 extends in the same direction as the first guide plate 6141, but the second angle formed by the second guide plate 6142 and the partition plate 613 is smaller than the first angle, so that the inclination of the second guide plate 6142 can be larger, and the opening positions of any two adjacent second guide plates 6142 are higher than the position of the first air outlet 612. When the hot air reaches the top of the first chamber 61, the hot air floats up and is not easy to enter the air outlet duct 616, thereby delaying the hot air from passing through the first air outlet 612 into the first chamber 1.

[0046] In some embodiments, the spacing between any adjacent first guide plates 6141 is a first spacing, and the spacing between any adjacent second guide plates 6142 is a second spacing, and the first spacing is greater than the second spacing. By setting the spacing between the first guide plates 6141 to be greater than the spacing between the second guide plates 6142, the spacing between the outlet duct 616 away from the first outlet 612 can be smaller, and the spacing between the outlet duct 616 close to the first outlet 612 can be larger. When cold air sinks, it is easy to enter the outlet duct 616, and hot air floats and is not easy to enter the outlet duct 616, which effectively reduces the temperature rise of the first chamber 1 when the evaporator 5 defrosts.

[0047] In some embodiments, the air outlet duct 616 includes a first air outlet duct 6161 and a second air outlet duct 6162. The first air outlet duct 6161 is the area between the second guide plates 6142, and the second air outlet duct 6162 is the area between the first guide plates 6141. The first air outlet duct 6161 is tapered, and the end of the first air outlet duct 6161 with a larger opening is connected to the second air outlet duct 6162. By setting the end of the first air outlet duct 6161 with a larger opening to be connected to the second air outlet duct 6162, it is convenient for cold air to flow into the first air outlet duct 6161, and then it is convenient for cold air to enter the first air outlet 612 of the second air outlet.

[0048] In some embodiments, Figure 5As shown, the electric damper 63 is also included, and the electric damper 63 is connected to the second air inlet 621. Among them, the electric damper 63 can control the flow of cold air to maintain the constant temperature state of the second chamber 2. For example, the electric damper 63 can automatically open or close according to the temperature requirement of the second chamber 2, so as to control the flow of cold air from the refrigeration chamber 112 into the second chamber 62. When the second chamber 2 needs to be cooled, the electric damper 63 will open to allow the cold air in the refrigeration chamber 112 to flow into the second chamber 62, and then flow into the second chamber 2 through the second air outlet; when the set temperature is reached, the electric damper 63 is closed to prevent more cold air from entering the second chamber 62. By setting the electric damper 63, it is convenient to accurately control the temperature of the second chamber 2.

[0049] In some embodiments, Figure 4 As shown, it also includes an air supply duct 4, which includes a side panel 41, an air duct cover 42 and a fan 43; the side panel 41, the fan 43 and the air duct cover 42 are connected in sequence; the air duct cover 42 is buckled on the fan 43 to form a third air outlet 421 and a fourth air outlet 422, the side panel 41 is buckled with the refrigeration chamber 112, the third air outlet 421 is connected to the first refrigeration air outlet 113, and the fourth air outlet 422 is connected to the second refrigeration air outlet 114. Among them, the side panel 41 serves as a structural support member to improve the strength and stability of the air supply duct 4. The side panel 41 connects the air duct cover 42 and the fan 43 to form a sealed channel for guiding air flow. The air duct cover 42 is connected to the side panel 41 and buckled on the fan 43 to form a closed space. The air duct cover 42 is provided with a third air outlet 421 and a fourth air outlet 422. The third air outlet 421 and the fourth air outlet 422 are used to guide the air flow blown out by the fan 43 to a specific path so as to deliver the cold generated by the evaporator 5 to the air supply duct 6. The fan 43 is responsible for promoting the air flow. The fan 43 is installed on the side plate 41 and is covered by the air duct cover 42. When working, the fan 43 generates air flow and blows out the cold air through the third air outlet 421 and the fourth air outlet 422 of the air duct cover 42.

[0050] In some embodiments, Figure 4 , Figure 6 and Figure 7As shown, it also includes a return air duct 3, the second chamber 2 includes a second chamber return air port 212, the first chamber 1 includes a refrigeration return air port 115, the side plate 41 is provided with a first chamber return air port 411, and the second chamber return air port 212 is arranged on a side of the second chamber 2 close to the first chamber 1; the refrigeration return air port 115 is arranged below the evaporator 5; the first chamber return air port 411 is at the same level as the refrigeration return air port 115; the second chamber return air port 212 is connected to the refrigeration return air port 115 through the return air duct 3. The second chamber return air port 212 and the refrigeration return air port 115 are connected through the return air duct 3. The gas in the second chamber 2 can enter the refrigeration chamber 112 through the second chamber return air port 212, the return air duct 3, and the refrigeration return air port 115 in sequence and be reabsorbed by the evaporator 5. The gas in the first chamber 1 enters the refrigeration chamber 112 through the first chamber return air port 411 and is reabsorbed by the evaporator 5, so that the gas is cooled again, and the internal temperature of the first chamber 1 and / or the second chamber 2 is maintained within a set range.

[0051] In some embodiments, Figure 3 As shown, the number of guide plates 614 is the same as the number of first air outlets 612. By setting the number of guide plates 614 to be the same as the number of first air outlets 612, the first air outlets 612 can be arranged in the air outlet duct 616, and thus during the defrosting period of the evaporator 5, less high-temperature gas enters the first air outlet 612.

[0052] In some embodiments, Figure 2 As shown, a heat preservation member 64 is also included, and the air supply duct 6 is connected to the first chamber 1 through the heat preservation member 64. By providing the heat preservation member 64, the heat preservation performance of the air supply duct 6 can be improved, the heat exchange between the air supply duct 6 and the first chamber 1 can be reduced, and the temperature change of the gas with reduced temperature in the air supply duct 6 is small.

[0053] As can be seen from the above technical solution, the present application provides a refrigerator, including a box body, the box body including a first chamber 1 and a second chamber 2; the first chamber 1 and the second chamber 2 are symmetrically arranged in the vertical direction; an air supply duct 6 is arranged between the first chamber 1 and the second chamber 2; the air supply duct 6 is divided into a first chamber 61 and a second chamber 62 which are not connected to each other by a partition 613; the first chamber 61 is provided with a plurality of guide plates 614 and a plurality of first air outlets 612; the number of the guide plates 614 is the same as the number of the first air outlets 612; the first chamber 61 is connected to the first chamber 61; the first chamber 61 is connected to the second chamber 6 ... An air inlet duct 615 and a plurality of air outlet ducts 616 are formed through a plurality of guide plates 614, and a first air outlet 612 is arranged in the air outlet duct 616; a plurality of second air outlets are arranged in the second chamber 62; the first chamber 61 is connected to the first compartment 1 through the first air outlet 612; the second chamber 62 is connected to the second compartment 2 through the second air outlet; the first compartment 1 includes a refrigeration chamber 112; the refrigeration chamber 112 is a groove formed by the first compartment 1 being concave outwards on the side close to the second compartment 2; an evaporator 5 is arranged in the refrigeration chamber 112. The first air outlet 612 is arranged inside the guide plate 614, and the position of the first air outlet 612 is lower than the height of the air inlet between the guide plates 614. When the evaporator 5 is defrosted, the high-temperature air is delayed from overflowing into the compartment, and the defrosting temperature rise is effectively reduced, so as to solve the problem that the refrigerator evaporator 5 is defrosted and the refrigerator compartment temperature rises.

[0054] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the general concept of this application and do not constitute a limitation on the protection scope of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without creative work belong to the protection scope of this application.

Claims

1. A refrigerator, characterized in that: include: A box body, the box body comprising a first chamber (1) and a second chamber (2); the first chamber (1) and the second chamber (2) are symmetrically arranged along the vertical direction; an air supply duct (6) disposed between the first chamber (1) and the second chamber (2); The air supply duct (6) is divided into a first chamber (61) and a second chamber (62) which are not connected to each other by a partition plate (613); The first chamber (61) is provided with a plurality of guide plates (614) and a plurality of first air outlets (612); the first chamber (61) forms an air inlet duct (615) and a plurality of air outlet ducts (616) through the plurality of guide plates (614), and the first air outlet (612) is provided in the air outlet duct (616); The second chamber (62) is provided with a plurality of second air outlets (622); The first chamber (61) is in communication with the first compartment (1) via the first air outlet (612); The second chamber (62) is in communication with the second chamber (2) via the second air outlet (622); The first chamber (1) further comprises a refrigeration chamber (112); the refrigeration chamber (112) is a groove formed by being recessed outwards on a side of the first chamber (1) close to the second chamber (2); an evaporator (5) is arranged in the refrigeration chamber (112), and the refrigeration chamber (112) is connected to the air supply duct (6).

2. The refrigerator according to claim 1, characterized in that: A defrost heater (51) is provided in the refrigeration chamber (112); the evaporator (5) is connected to the defrost heater (51); a first refrigeration air outlet (113) and a second refrigeration air outlet (114) are provided at one end of the refrigeration chamber (112) close to the air supply duct (6); a first air inlet (611) and a second air inlet (621) are also provided at one end of the air supply duct (6) close to the refrigeration chamber (112); the first refrigeration air outlet (113) is connected to the first air inlet (611), and the second refrigeration air outlet (114) is connected to the second air inlet (621).

3. The refrigerator according to claim 2, characterized in that: Any one of the guide plates (614) comprises a first guide plate (6141) and a second guide plate (6142); one end of the first guide plate (6141) is connected to the partition plate (613), and the other end of the first guide plate (6141) is connected to the second guide plate (6142); the first guide plate (6141) extends in a direction away from the first air inlet (611) and forms a first angle with the partition plate (613); the second guide plate (6142) extends in a direction away from the first air inlet (611) and forms a second angle with the partition plate (613), and the first angle is greater than the second angle.

4. The refrigerator according to claim 3, characterized in that: The spacing between any adjacent first guide plates (6141) is a first spacing, and the spacing between any adjacent second guide plates (6142) is a second spacing, and the first spacing is greater than the second spacing.

5. The refrigerator according to claim 3, characterized in that: The air outlet duct (616) comprises a first air outlet duct (6161) and a second air outlet duct (6162), wherein the first air outlet duct (6161) is the area between the second guide plates (6142), and the second air outlet duct is the area between the first guide plates (6141), and the first air outlet duct (6161) is conical, and the end of the first air outlet duct (6161) with a larger opening is connected to the second air outlet duct.

6. The refrigerator according to claim 2, characterized in that: It also includes an electric damper (63), wherein the electric damper (63) is connected to the second air inlet (621).

7. The refrigerator according to claim 2, characterized in that: The air supply duct (4) further comprises an air supply duct (4), wherein the air supply duct (4) comprises a side panel (41), an air duct cover (42) and a fan (43); the side panel (41), the fan (43) and the air duct cover (42) are connected in sequence; the air duct cover (42) is snapped onto the fan (43) to form a third air outlet (421) and a fourth air outlet (422); the side panel (41) is snapped onto the refrigeration chamber (112); the third air outlet (421) is connected to the first refrigeration air outlet (113); and the fourth air outlet (422) is connected to the second refrigeration air outlet (114).

8. The refrigerator according to claim 7, characterized in that: The air return duct (3) further comprises: the second chamber (2) comprises a second chamber return air port (212); the first chamber (1) comprises a refrigeration return air port (115); the side plate (41) is provided with a first chamber return air port (411); the second chamber return air port (212) is arranged on a side of the second chamber (2) close to the first chamber (1); the refrigeration return air port (115) is arranged below the evaporator (5); the first chamber return air port (411) and the refrigeration return air port (115) are at the same level; and the second chamber return air port (212) is connected to the refrigeration return air port (115) via the return air duct (3).

9. The refrigerator according to claim 1, characterized in that: The number of the guide plates (614) is the same as the number of the first air outlets (612).

10. The refrigerator according to claim 1, characterized in that: It also includes a heat-insulating component (64), and the air supply duct (6) is connected to the first chamber (1) via the heat-insulating component (64).

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