Refrigerator

Abstract

The utility model relates to the technical field of refrigeration equipment, and discloses a refrigerator which comprises a plurality of inner containers which are sequentially distributed from top to bottom to define a plurality of refrigeration spaces. The air duct plate is matched with the inner side wall of the liner to define an air duct, and the air duct communicates with an air outlet of an evaporation fan at the bottom of the refrigerator and each refrigeration space; the air distribution ribs are arranged in the air duct and used for dividing the air duct into a plurality of air supply ducts and at least one air return duct in the horizontal direction; the air supply ducts are symmetrically arranged on the two sides of the air return duct. The air ducts are separately arranged at different positions through the air distribution ribs so as to supply air to the refrigeration space, air supply of the refrigeration space is uniform, air supply and return are separated, the refrigeration effect is improved, and the refrigeration space is flexibly refrigerated by controlling air supply of different air supply ducts.

Description

Technical Field

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

[0002] At present, the existing air-cooled freezers transport cold air to each compartment through air ducts, and control the amount of cold air transported by air doors. Usually, the air duct is set on one side of the freezer, which can easily cause uneven distribution of cold air in the freezer, resulting in large temperature differences in the freezer, affecting the cooling effect.

[0003] In the related art, uniform cooling of various parts of the refrigeration space is achieved by arranging a plurality of air outlets on an air duct plate of an air duct corresponding to the refrigeration space.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that the related technology has at least the following problems:

[0005] Setting multiple air outlets on the air duct can only achieve local uniformity in the distribution direction of the air outlets. There is still a problem of uneven cooling for areas outside the width of the air duct, and the temperature adjustment is not flexible enough.

[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 embodiments of the present disclosure provide a refrigerator to solve the problems of uneven refrigeration and inflexible temperature adjustment of the refrigerator.

[0009] According to a first aspect of the utility model, a refrigerator is provided, comprising: a plurality of inner tanks, which are sequentially distributed from top to bottom to define a plurality of refrigeration spaces;

[0010] The air duct plate cooperates with the inner wall of the inner tank to define an air outlet duct, and the air duct connects the evaporating fan outlet at the bottom of the refrigerator with each refrigeration space; multiple air dividing ribs are arranged in the air duct, which are used to divide the air duct into multiple supply air ducts and at least one return air duct in the horizontal direction; wherein the multiple supply air ducts are symmetrically arranged on both sides of the return air duct.

[0011] Optionally, the multiple air dividing ribs include: a first air dividing rib, arranged on the left side of the return air duct; a second air dividing rib, arranged on the right side of the return air duct; the lower end of the first air dividing rib and the lower end of the second air dividing rib intersect at the air outlet of the evaporator fan to guide the wind of the evaporator fan into the supply air ducts on both sides of the return air duct.

[0012] Optionally, the air duct plate includes: a plurality of first air supply outlets, the air duct plates corresponding to each refrigeration space opened in the air supply duct; a plurality of return air outlets, the air duct plates corresponding to each refrigeration space opened in the return air duct and located below the first air supply outlets.

[0013] Optionally, the refrigerator further includes: a plurality of air doors, which are arranged in the supply air duct and the return air duct corresponding to the connection points of adjacent refrigeration spaces; the air doors can be controlled to open so that adjacent refrigeration spaces are connected, or controlled to close so that adjacent spaces are isolated.

[0014] Optionally, the refrigerator further includes: an air guide fence, which defines an air guide channel; the air guide fence includes a fence entrance and a fence exit that are relatively arranged; the fence entrance is buckled at the air outlet of the evaporating fan; and the fence exit corresponds to the air duct entrance.

[0015] Optionally, the wind guide fence also includes: an air dividing plate, which is arranged in the wind guide fence corresponding to the lower end of the air dividing rib; the air dividing plate separates the air guide channel into a first air guide channel and a second air guide channel; the first air guide channel corresponds to the supply air duct on the left side of the return air duct; the second air guide channel corresponds to the supply air duct on the right side of the return air duct.

[0016] Optionally, the wind distribution plate includes: a first wind plate; a second wind plate, located on the right side of the first wind plate; the lower end of the first wind plate intersects with the lower end of the second wind plate, and the upper end of the first wind plate and the upper end of the second wind plate are respectively connected to the first wind distribution ribs and the second wind distribution ribs.

[0017] Optionally, a second air supply port is provided on the upper portion of the air duct plate of the return air duct, and when the air door in the return air duct is opened, the air in the return air duct of the refrigeration space can enter the adjacent refrigeration space below through the second air supply port.

[0018] Optionally, the return air outlet of the bottom refrigeration space is connected to the evaporator bin.

[0019] Optionally, the refrigerator further includes: a circulation fan, which is arranged at the upper part of the refrigeration space and is used to promote circulation in the refrigeration space.

[0020] In some embodiments, the air dividing ribs further include a third air dividing rib and a fourth air dividing rib. The third air dividing rib and the fourth air dividing rib are respectively arranged on both sides of the first air dividing rib and the second air dividing rib to further separate the left air supply duct and the right air supply duct, so that the number of the left air supply ducts is two and the number of the right air supply ducts is two, so as to improve the refrigeration uniformity in the refrigeration space.

[0021] In some embodiments, there are multiple air dividing ribs, wherein the first air dividing rib and the second air dividing rib define a return air duct, and the remaining multiple air dividing ribs are symmetrically distributed on the left and right sides of the return air duct to divide the return air duct into multiple supply air ducts to improve the cooling uniformity of the refrigeration space.

[0022] In some embodiments, the first air supply outlets are symmetrically distributed on the air duct plate of the left air supply duct and the air duct plate of the right air supply duct, and there are multiple first air supply outlets, which are distributed in sequence from top to bottom.

[0023] In some embodiments, the damper is also provided at the first air supply port and the return air port, and the damper of the first air supply port can control the air volume of the refrigeration space to control the refrigeration temperature and refrigeration speed. The damper of the return air port cooperates with the damper of the air inlet to control the refrigeration rate.

[0024] In some embodiments, the periphery of the fence entrance of the air guide fence is bent outward to form a fixed edge, and the fixed edge is fixedly connected to the bottom wall of the inner tank at the air outlet of the evaporator fan through fasteners.

[0025] In some embodiments, the air distribution plate is integrally provided with the air guide fence, or the air distribution plate is fixedly connected to the inner wall of the air guide fence by fasteners.

[0026] In some embodiments, the number of air distribution plates corresponds to the air distribution ribs. In the case where there are multiple air distribution ribs, the air distribution plates correspond to the air distribution ribs one by one. The first air distribution plate and the second air distribution plate correspond to the first air distribution rib and the second air distribution rib. The remaining multiple air distribution plates are sequentially arranged on one side of the first air distribution plate and the second air distribution plate, and the multiple air distribution plates arranged on one side of the first air distribution plate are parallel to the first air distribution plate to divide the air guide channel on one side of the first air distribution plate into multiple air guide channels in parallel; the multiple air distribution plates arranged on one side of the second air distribution plate are parallel to the second air distribution plate to divide the air guide channel on one side of the second air distribution plate into multiple air guide channels in parallel. And each air guide channel corresponds to an air supply duct to accurately and evenly deliver the wind in the air guide duct to the corresponding air supply duct.

[0027] In some embodiments, the second air supply outlet is provided with an air door to control the air volume of the air in the return air duct entering the refrigeration space.

[0028] In some embodiments, the circulating fan is connected to the outside air. When the damper in the return air duct is closed, the cold air enters the refrigeration space from the first air supply port in the supply air duct. When the circulating fan is turned on, the air after heat exchange can be discharged out of the refrigeration space to achieve rapid cooling of the refrigeration space.

[0029] The refrigerator provided in the embodiments of the present disclosure can achieve the following technical effects:

[0030] The air ducts are divided and set at different positions through air dividing ribs to supply air to the refrigeration space, so that the air supply to the refrigeration space is uniform, and the supply and return air are separated to improve the refrigeration effect. The refrigeration space can be flexibly cooled by controlling the air supply from different air supply ducts.

[0031] 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

[0032] 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:

[0033] Figure 1 is a partial structural schematic diagram of a refrigerator provided by an embodiment of the present disclosure;

[0034] Figure 2 is a partial structural schematic diagram of a refrigerator provided by another embodiment of the present disclosure;

[0035] Figure 3 is a schematic cross-sectional structural diagram of a refrigerator provided by an embodiment of the present disclosure;

[0036] Figure 4 is a schematic cross-sectional structural diagram of a refrigerator provided by another embodiment of the present disclosure;

[0037] Figure 5 It is a schematic diagram of the partial structure of a refrigerator provided in another embodiment of the present disclosure.

[0038] Reference numerals:

[0039] 10: Freezer; 11: Inner tank; 111: Refrigeration space; 12: Air duct plate; 121: Air duct; 1211: Supply air duct; 1212: Return air duct; 1213: Air duct entrance; 122: First supply air outlet; 123: Return air outlet; 124: Second supply air outlet; 13: Air dividing ribs; 131: First air dividing ribs; 132: Second air dividing ribs; 14: Air door; 15: Air guide fence; 151: Fence entrance; 152: Fence exit; 153: Air guide channel; 1531: First air guide channel; 1532: Second air guide channel; 154: Air dividing plate; 1541: First air plate; 1542: Second air plate; 16: Evaporation fan; 161: Evaporation fan outlet; 17: Evaporator bin; 171: Evaporator; 18: Circulation fan. DETAILED DESCRIPTION

[0040] 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.

[0041] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure 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, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0042] 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.

[0043] 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.

[0044] Unless otherwise stated, the term "plurality" means two or more.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] At present, the existing air-cooled freezers deliver cold air to each compartment through the air duct, and control the delivery amount of cold air through the air door. Usually, the air duct is set on one side of the freezer, which can easily cause uneven distribution of cold air in the freezer, resulting in large temperature differences in the freezer, affecting the cooling effect. In the related art, multiple air outlets are set on the air duct plate of an air duct corresponding to the refrigeration space to achieve uniform cooling of various parts of the refrigeration space. Since setting multiple air outlets on the air duct can only achieve local uniformity in the direction of the air outlet distribution, there is still a problem of uneven cooling for areas outside the width of the air duct, and the temperature adjustment is not flexible enough.

[0049] The present application divides the air ducts and sets them in different positions through air dividing ribs to supply air to the refrigeration space so that the air supply to the refrigeration space is uniform, and the supply and return air are separated, thereby improving the refrigeration effect. The refrigeration space can be flexibly cooled by controlling the air supply from different air supply ducts.

[0050] Combination Figures 1 to 5 As shown, the embodiment of the present disclosure provides a refrigerator 10, including multiple inner tanks 11, an air duct plate 12 and multiple air dividing ribs 13. The multiple inner tanks 11 are sequentially distributed from top to bottom to define multiple refrigeration spaces 111; the air duct plate 12 cooperates with the inner side wall of the inner tank 11 to define an air duct 121, and the air duct 121 connects the evaporating fan outlet 161 at the bottom of the refrigerator 10 with each refrigeration space 111; multiple air dividing ribs 13 are arranged in the air duct 121, and are used to divide the air duct 121 into multiple air supply ducts 1211 and at least one return air duct 1212 in the horizontal direction; wherein the multiple air supply ducts 1211 are symmetrically arranged on both sides of the return air duct 1212.

[0051] like Figures 1 to 3 As shown, Figure 1The air duct plate 12 is set to be transparent, and it can be seen that an air duct 121 is formed between the air duct plate 12 and the rear side wall of the inner liner 11. The air duct 121 covers the refrigeration space 111 of the refrigerator 10 from bottom to top, and is connected to the refrigeration space 111 through the air inlet and the return air port 123. The air dividing ribs 13 are set between the air duct plate 12 and the rear side wall of the inner liner 11. The air dividing ribs 13 are integrated with the inner liner 11, and protrude inward from the inner wall of the inner liner 11 until they abut against the air duct plate 12 to prevent the air paths on both sides of the air dividing ribs 13 from mixing. The air dividing ribs 13 divide the air duct 121 into a return air duct 1212 in the middle and a supply air duct 1211 on both sides of the return air duct 1212 in the left and right directions. The evaporator bin 17 and the evaporating fan 16 are both arranged below the inner tank 11, the lower end of the air duct 121 is connected to the evaporator bin 17, and the evaporating fan air outlet 161 corresponds to the air inlet of the air duct 121, and the cold energy of the evaporator 171 is sent upward from the air duct inlet 1213 into the air duct 121, and is transported to each refrigeration space 111 through the air supply port. Among them, the air supply duct 1211 is arranged on both sides of the return air duct 1212, and the air supply duct 1211 is provided with a plurality of first air supply ports 122 from top to bottom, so that the cold energy can be evenly transported to the refrigeration space 111 in the up and down directions and the left and right directions, so as to realize the uniform refrigeration of the refrigeration space 111. At the same time, controlling the air intake volume of each air duct 121 can control the cold energy input of the refrigeration space 111, so that the refrigeration temperature can be flexibly adjusted.

[0052] Optionally, the plurality of air dividing ribs 13 include a first air dividing rib 131 and a second air dividing rib 132. The first air dividing rib 131 is disposed on the left side of the return air duct 1212, and the second air dividing rib 132 is disposed on the right side of the return air duct 1212; the lower end of the first air dividing rib 131 and the lower end of the second air dividing rib 132 intersect at the evaporator fan air outlet 161, so as to guide the wind of the evaporator fan 16 into the air supply duct 1211 on both sides of the return air duct 1212.

[0053] like Figure 1 , Figure 3 and Figure 4 As shown, the air dividing ribs 13 are arranged in the air duct 121 to separate the air duct 121. The first air dividing ribs 131 and the second air dividing ribs 132 intersect at the air duct inlet 1213, so that the left air path at the air duct inlet 1213 flows into the left air supply duct 1211 along the first air dividing ribs 131, and the right air path flows into the right air supply duct 1211 along the second air dividing ribs 132, so that the cooling capacity blown out by the evaporating fan 16 is divided into two air paths at the air duct inlet 1213, and flows through the air supply ducts 1211 on the left and right sides respectively. So that the refrigeration space 111 is cooled evenly in the left and right directions.

[0054] In some embodiments, the air dividing ribs 13 further include a third air dividing rib 13 and a fourth air dividing rib 13. The third air dividing rib 13 and the fourth air dividing rib 13 are respectively arranged on both sides of the first air dividing rib 131 and the second air dividing rib 132 to further separate the left air supply duct 1211 and the right air supply duct 121, so that the number of the left air supply duct 1211 is two and the number of the right air supply duct 1211 is two, so as to improve the refrigeration uniformity in the refrigeration space 111.

[0055] In some embodiments, there are multiple air dividing ribs 13, wherein the first air dividing rib 131 and the second air dividing rib 132 define a return air duct 1212, and the remaining multiple air dividing ribs 13 are symmetrically distributed on the left and right sides of the return air duct 1212 to divide it into multiple supply air ducts 1211, so as to improve the cooling uniformity of the refrigeration space 111.

[0056] Optionally, the air duct plate 12 includes a plurality of first air supply ports 122 and a plurality of air return ports 123. The plurality of first air supply ports 122 correspond to the air duct plates 12 opened in the air supply ports 1211 of the refrigeration spaces 111; the plurality of air return ports 123 correspond to the air duct plates 12 opened in the air return ports 1212 of the refrigeration spaces 111 and are located below the first air supply ports 122.

[0057] like Figure 2 As shown, the air supply ports are arranged on both sides of the return air port 123 , and the height of the air supply ports is higher than the return air port 123 , so that the cooling energy moves from top to bottom to the return air port 123 .

[0058] In some embodiments, the first air supply outlets 122 are symmetrically distributed on the air duct plate 12 of the left air supply duct 1211 and the air duct plate 12 of the right air supply duct 1211, and there are multiple first air supply outlets 122, which are distributed in sequence from top to bottom.

[0059] Optionally, the refrigerator 10 further includes a plurality of dampers 14. The plurality of dampers 14 are arranged in the air supply duct 1211 and the air return duct 1212 corresponding to the connection between adjacent refrigeration spaces 111; the dampers 14 can be controlled to open to connect adjacent refrigeration spaces 111, or controlled to close to isolate adjacent spaces.

[0060] like Figure 3 and Figure 4As shown, each air supply duct 1211 and each return air duct 1212 are provided with a damper 14 corresponding to the adjacent refrigeration space 111, and the cold air is blown into the air duct 121 from the duct inlet 1213 by the evaporating fan 16 at the lower end, and continuously sent upward through the dampers 14 in each air supply duct 1211 to enter the upper air supply duct 1211, and then sent into the corresponding refrigeration space 111 through the first air supply port 122. The cold air flows from top to bottom in the refrigeration space 111 and fills the refrigeration space 111, and then enters the return air duct 1212 through the return air port 123 at the lower part of the refrigeration space 111. The air after heat exchange enters the return air duct 1212 and then flows downward through the damper 14 in the return air duct 1212 to enter the lower return air duct 1212, and finally flows back to the evaporator bin 17, and is cooled again by the evaporating fan 16, and then is sent into the air supply duct 1211 again for circulation. The damper 14 can be controlled to be fully opened or fully closed, or partially opened, so as to control the flow of cold air and thus control the refrigeration temperature.

[0061] In some embodiments, the damper 14 is also provided at the first air supply port 122 and the return air port 123. The damper 14 at the first air supply port 122 can control the air volume of the refrigeration space 111 to control the refrigeration temperature and refrigeration speed. The damper 14 at the return air port 123 cooperates with the damper 14 at the air inlet to control the refrigeration rate.

[0062] Optionally, the refrigerator 10 further includes an air guide fence 15 . The air guide fence 15 defines an air guide channel 153 ; the air guide fence 15 includes an oppositely arranged fence entrance 151 and a fence exit 152 ; the fence entrance 151 is buckled at the evaporator fan outlet 161 ; the fence exit 152 corresponds to the air duct entrance 1213 .

[0063] like Figure 4 As shown, the inner tank 11 is provided with an evaporator fan outlet 161 corresponding to the evaporator fan 16, and the evaporator fan 16 blows out the cold energy generated by the evaporator 171 through the evaporator fan outlet 161. The wind guide fence 15 is surrounded by fence panels on all sides to form an annular wind guide channel 153 including a fence inlet 151 and a fence outlet 152 that are arranged oppositely. The fence inlet 151 is adapted and fixedly connected to the evaporator fan outlet 161, and the fence outlet 152 corresponds to the air duct inlet 1213, so as to guide the cold energy blown out by the evaporator fan 16 into the air duct 121.

[0064] In some embodiments, the periphery of the fence entrance 151 of the air guide fence 15 is bent outward to form a fixed edge, and the fixed edge is fixedly connected to the bottom wall of the inner tank 11 at the evaporator fan outlet 161 through a fastener.

[0065] Optionally, the wind guide fence 15 further includes an air dividing plate 154. The air dividing plate 154 is arranged in the wind guide fence 15 corresponding to the lower end of the air dividing rib 13; the air dividing plate 154 divides the wind guide channel 153 into a first wind guide channel 1531 and a second wind guide channel 1532; the first wind guide channel 1531 corresponds to the air supply channel 1211 on the left side of the return air channel 1212; the second wind guide channel 1532 corresponds to the air supply channel 1211 on the right side of the return air channel 1212.

[0066] like Figure 1 , Figure 4 and Figure 5 As shown, since the air supply duct 1211 includes the left air supply duct 1211 and the right air supply duct 1211, the air dividing plate 154 is set in the middle position of the air guide channel 153, dividing the air guide channel 153 into a first air guide channel 1531 on the left and a second air guide channel 1532 on the right, so that the cold air blown out by the evaporating fan 16 is automatically divided into two paths after passing through the air guide channel 153, one path flows into the left air supply duct 1211 from the left air guide channel 153, and the other path flows into the right air supply duct 1211 from the right air guide channel 153.

[0067] In some embodiments, the air distribution plate 154 is integrally provided with the air guide fence 15, or the air distribution plate 154 is fixedly connected to the inner wall of the air guide fence 15 by fasteners.

[0068] Optionally, the air distribution plate 154 includes a first air plate 1541 and a second air plate 1542. The second air plate 1542 is located on the right side of the first air plate 1541; the lower end of the first air plate 1541 intersects with the lower end of the second air plate 1542, and the upper end of the first air plate 1541 and the upper end of the second air plate 1542 are connected to the first air distribution rib 131 and the second air distribution rib 132 respectively.

[0069] like Figure 5 As shown, the lower ends of the first air plate 1541 and the second air plate 1542 intersect in the air guide channel 153, the upper end of the first air plate 1541 is inclined toward the left air supply channel 1211, and the upper end of the second air plate 1542 is inclined toward the right air supply channel 1211, so as to guide the air path in the air guide channel 153 to the left air supply channel 1211 and the right air supply channel 1211 respectively. Among them, the upper end of the first air plate 1541 is connected with the first air dividing rib 131, so that the left air path can smoothly enter the left air supply channel 1211, and will not flow out from the gap between the air dividing plate 154 and the air dividing rib 13. The upper end of the second air plate 1542 is connected with the second air dividing rib 132, so that the right air path can smoothly enter the right air supply channel 1211, and will not flow out from the gap between the air dividing plate 154 and the air dividing rib 13.

[0070] In some embodiments, the number of air distribution plates 154 corresponds to the air distribution ribs 13. In the case where the air distribution ribs 13 include multiple air distribution ribs, the air distribution plates 154 correspond to the air distribution ribs 13 one by one. The first air distribution plate 154 and the second air distribution plate 154 correspond to the first air distribution rib 131 and the second air distribution rib 132. The remaining multiple air distribution plates 154 are sequentially arranged on one side of the first air distribution plate 154 and the second air distribution plate 154, and the multiple air distribution plates 154 arranged on one side of the first air distribution plate 154 are parallel to the first air distribution plate 154 to divide the air guide channel 153 on one side of the first air distribution plate 154 into multiple air guide channels 153 in parallel; the multiple air distribution plates 154 arranged on one side of the second air distribution plate 154 are parallel to the second air distribution plate 154 to divide the air guide channel 153 on one side of the second air distribution plate 154 into multiple air guide channels 153 in parallel. Each air guide channel 153 corresponds to an air supply channel 1211 , so as to accurately and evenly deliver the wind in the air guide channel 121 to the corresponding air supply channel 1211 .

[0071] Optionally, a second air supply port 124 is provided on the upper portion of the air duct plate 12 of the return air duct 1212 , and when the damper 14 in the return air duct 1212 is opened, the air in the return air duct 1212 of the refrigeration space 111 can enter the adjacent refrigeration space 111 below through the second air supply port 124 .

[0072] like Figure 2 As shown, the position of the second air supply port 124 is higher than that of the first air supply port 122, and the air in the return air duct 1212 flows into the return air duct 1212 of the refrigeration space 111 below through the damper 14 in the return air duct 1212. The second air supply port 124 is opened on the upper part of the return air plate of the refrigeration space 111, so that the air in the return air duct 1212 flows into the lower return air duct 1212 through the damper 14 in the return air duct 1212 and can enter the refrigeration space 111 below through the second air supply port 124, and then flows downward in sequence and flows back to the evaporator bin 17 through the return air port 123 in the refrigeration space 111 at the lower end. The effect of flexibly adjusting the temperature of the refrigeration space 111 is achieved.

[0073] In some embodiments, the second air supply port 124 is provided with an air door 14 to control the air volume of the air in the return air duct 1212 entering the refrigeration space 111 .

[0074] Optionally, the return air port 123 of the bottom refrigeration space 111 is connected to the evaporator bin 17 .

[0075] like Figure 2 As shown, below the bottom refrigeration space 111 is the evaporator bin 17, and a return air port 123 connected to the evaporator bin 17 is opened at the bottom of the refrigeration space 111. The air in the return air duct 1212 can enter the bottom refrigeration space 111 and then flow back to the evaporator bin 17 through the bottom return air port 123.

[0076] Optionally, the refrigerator 10 further includes a circulation fan 18 . The circulation fan 18 is disposed at the upper portion of the refrigeration space 111 to promote circulation in the refrigeration space 111 .

[0077] like Figure 1 As shown, the circulation fan 18 is arranged in the upper return air duct 1212 of one or more refrigeration spaces 111. The air duct plate 12 is provided with a circulation air outlet corresponding to the circulation fan 18. When the dampers 14 are all closed, the circulation fan 18 can be started to realize the circulation in the refrigeration space 111.

[0078] In some embodiments, the circulating fan 18 is connected to the outside air. When the damper 14 in the return air duct 1212 is closed, the cold air enters the refrigeration space 111 from the first air supply port 122 in the supply air duct 1211. When the circulating fan 18 is turned on, the air after heat exchange can be discharged out of the refrigeration space 111 to achieve rapid cooling of the refrigeration space 111.

[0079] The above description and the accompanying drawings fully 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. Parts and features of some embodiments may be included in or replace parts and features of other embodiments.

[0080] Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include the plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings.

[0081] In addition, when used in this application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or groups thereof. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the presence of other identical elements in the process, method or device that includes the elements.

[0082] In this article, each embodiment may focus on the differences from other embodiments, and the same or similar parts between the embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts may refer to the description of the method part.

[0083] The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the 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: Multiple inner tanks are distributed from top to bottom to define multiple refrigeration spaces; The air duct plate cooperates with the inner wall of the inner tank to define an air duct, and the air duct connects the air outlet of the evaporating fan at the bottom of the refrigerator with each refrigeration space; A plurality of air dividing ribs are arranged in the air duct, and are used to divide the air duct into a plurality of air supply ducts and at least one air return duct in the horizontal direction; Among them, multiple air supply ducts are symmetrically arranged on both sides of the return air duct.

2. The refrigerator according to claim 1, characterized in that: Multiple wind ribs include: The first wind rib is located on the left side of the return air duct; The second wind rib is located on the right side of the return air duct; The lower end of the first air branch rib and the lower end of the second air branch rib intersect at the air outlet of the evaporator fan to guide the wind of the evaporator fan into the supply air ducts on both sides of the return air duct.

3. The refrigerator according to claim 1, characterized in that: The air duct plate includes: A plurality of first air supply ports, corresponding to air duct plates opened in the air supply ducts of the respective refrigeration spaces; A plurality of return air outlets are opened on the air duct plate of the return air duct corresponding to each refrigeration space and are located below the first air supply outlet.

4. The refrigerator according to claim 1, characterized in that: Also includes: Multiple air doors are arranged in the air supply duct and the air return duct corresponding to the connection between adjacent refrigeration spaces; The damper can be controlled to open to allow adjacent refrigerated spaces to communicate, or controlled to close to isolate adjacent spaces.

5. The refrigerator according to any one of claims 1 to 4, characterized in that: Also includes: Wind guide fence, defining the wind guide channel; The wind guide fence includes a fence entrance and a fence exit that are arranged opposite to each other; The entrance of the fence is buckled at the air outlet of the evaporator fan; The fence outlet corresponds to the air duct inlet.

6. The refrigerator according to claim 5, characterized in that: Wind deflector fence also includes: The wind distribution plate is arranged in the wind guide fence corresponding to the lower end of the wind distribution rib; The air dividing plate divides the air guiding channel into a first air guiding channel and a second air guiding channel; The first air guide channel corresponds to the air supply channel on the left side of the return air channel; The second air guide channel corresponds to the air supply duct on the right side of the return air duct.

7. The refrigerator according to claim 6, characterized in that: The air distribution plate includes: First wind board; The second wind plate is located on the right side of the first wind plate; The lower end of the first wind plate intersects with the lower end of the second wind plate, and the upper end of the first wind plate and the upper end of the second wind plate are connected with the first sub-wind ribs and the second sub-wind ribs respectively.

8. The refrigerator according to any one of claims 1 to 4, characterized in that: A second air supply port is provided on the upper portion of the air duct plate of the return air duct. When the air door in the return air duct is opened, the air in the return air duct of the refrigeration space can enter the adjacent refrigeration space below through the second air supply port.

9. The refrigerator according to any one of claims 1 to 4, characterized in that: The return air outlet of the bottom refrigeration space is connected to the evaporator bin.

10. The refrigerator according to any one of claims 1 to 4, characterized in that: Also includes: The circulation fan is installed at the top of the refrigeration space to promote circulation in the refrigeration space.

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