Air supply structure and refrigerator

Abstract

The utility model provides an air supply structure and a refrigerator. The air supply structure comprises a refrigeration air duct; the freezing air duct and the refrigeration air duct are arranged at an interval; the baffle plate penetrates through the refrigeration air duct and the freezing air duct in a sliding manner; the driving part is used for driving the baffle plate to slide; and the baffle is arranged in the refrigeration air duct, so that the baffle has a first state of closing the refrigeration air duct and opening the refrigeration air duct, or a second state of closing the refrigeration air duct and opening the refrigeration air duct, or a third state of closing the refrigeration air duct and the refrigeration air duct, or a fourth state of opening the refrigeration air duct and the refrigeration air duct. According to the air supply structure, opening or closing of the refrigeration air duct and the freezing air duct is achieved only through one baffle and one driving piece, and the manufacturing cost and the use cost are both low.

Description

Technical Field

[0001] The present application belongs to the technical field of refrigerators, and in particular relates to an air supply structure and a refrigerator. Background Art

[0002] In order to prevent the odor from mixing between the refrigeration compartment and the freezer compartment, existing refrigerators usually separate the refrigeration duct and the freezing duct. At the same time, in order to achieve controllable air supply actions of the refrigeration duct and the freezing duct, a refrigeration damper is usually set in the refrigeration duct and a freezing damper is set in the freezing duct. Therefore, two motors are required to drive the refrigeration damper and the freezing damper respectively, resulting in high manufacturing and use costs of the entire refrigerator. Utility Model Content

[0003] The embodiments of the present application provide an air supply structure and a refrigerator to solve the problem that the refrigeration damper and the freezing damper of the existing refrigerator need to be connected to a motor respectively, resulting in high manufacturing cost and use cost of the entire refrigerator.

[0004] The embodiment of the present application provides an air supply structure for use in a refrigerator, the air supply structure comprising:

[0005] Refrigeration duct;

[0006] A freezing air duct is spaced apart from the refrigeration air duct;

[0007] a baffle, slidably disposed through the refrigeration air duct and the freezing air duct;

[0008] A driving member is used to drive the baffle to slide so that the baffle has a first state of closing the refrigeration air duct and opening the freezing air duct, or a second state of closing the freezing air duct and opening the refrigeration air duct, or a third state of closing the freezing air duct and the refrigeration air duct, or a fourth state of opening the freezing air duct and the refrigeration air duct.

[0009] Optionally, the refrigeration duct includes a first refrigeration duct body and a second refrigeration duct body opposite to each other, and the freezing duct includes a first freezing duct body and a second freezing duct body opposite to each other;

[0010] The baffle comprises:

[0011] a first plate, the first plate comprising a first shielding portion and a first connecting portion, the first plate being slidably disposed between the first refrigeration duct body and the second refrigeration duct body, and connecting the first refrigeration duct body and the second refrigeration duct body via the first shielding portion or the first connecting portion;

[0012] The second plate body is connected to the first plate body, and the second plate body includes a second shielding portion and a second connecting portion. The second plate body is slidably clamped between the first refrigeration air duct body and the second refrigeration air duct body, and the first refrigeration air duct body and the second refrigeration air duct body are connected through the second shielding portion or the second connecting portion.

[0013] Optionally, the first refrigeration air duct body and the second refrigeration air duct body are arranged opposite to each other along a first direction, and the first freezing air duct body and the second freezing air duct body are arranged opposite to each other along a second direction;

[0014] The first plate body and the second plate body are arranged at an angle to each other.

[0015] Optionally, the refrigerator includes a box liner and a partition, wherein the partition is arranged in the box liner and divides the box liner into a first space and a second space, and the first space is separated by a freezing compartment and a refrigerating compartment;

[0016] The first refrigeration air duct body is located in the second space, one end of the second refrigeration air duct body is arranged opposite to the first refrigeration air duct body, and the other end is connected to the refrigeration compartment;

[0017] One end of the first freezing air duct body is located in the second space, and the other end extends into the freezing compartment. The second freezing air duct body is disposed in the freezing compartment and is opposite to the other end of the first freezing air duct body.

[0018] Optionally, the second refrigeration air duct body includes a plurality of refrigeration air supply ports, and the plurality of refrigeration air supply ports are distributed at intervals along the direction of gravity.

[0019] Optionally, the first refrigeration air duct body includes a first opening facing the second refrigeration air duct body, and the first freezing air duct body includes a second opening facing the second freezing air duct body. Along the sliding direction of the baffle, the first opening and the second opening are spaced apart, and the flow cross-section of the first opening is smaller than the flow cross-section of the first connecting portion, and the flow cross-section of the second opening is smaller than the flow cross-section of the second connecting portion.

[0020] Optionally, along the sliding direction of the baffle, the first opening is adjacent to the second opening, and the first opening and the second opening are the same size, the first connecting portion and the second connecting portion are the same size, and the flow cross-section of the first connecting portion is twice the flow cross-section of the first opening.

[0021] Optionally, a pair of stoppers are provided on the refrigeration air duct and / or the freezing air duct, and the pair of stoppers are respectively provided at both ends of the baffle along the sliding direction of the baffle and are in sliding contact with the baffle.

[0022] Optionally, a buckle is provided on the baffle, and the buckle is slidably engaged with the side wall of the refrigeration air duct and / or the side wall of the freezing air duct.

[0023] An embodiment of the present application also provides a refrigerator, comprising the air supply structure as described above.

[0024] The air supply structure provided in the embodiment of the present application is simultaneously slidably provided in the refrigeration air duct and the freezing air duct by a baffle, and the baffle is driven to slide by a driving member, so that the baffle moves to different positions, thereby realizing the opening or closing of the refrigeration air duct and the freezing air duct respectively, and the opening or closing of the refrigeration air duct and the freezing air duct do not affect each other. The manufacturing cost and the use cost of the air supply structure with only one baffle and one driving member are relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0026] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0027] Figure 1 This is a schematic diagram of the refrigerator box structure provided in an embodiment of the present application.

[0028] Figure 2 for Figure 1 Cross-sectional view at AA in the middle.

[0029] Figure 3 This is a schematic diagram of the rear view of the air supply structure provided in an embodiment of the present application.

[0030] Figure 4 This is a first structural schematic diagram of the front view of the air supply structure provided in an embodiment of the present application.

[0031] Figure 5 This is a second structural schematic diagram of the front view of the air supply structure provided in an embodiment of the present application.

[0032] Figure 6 This is a third front structural schematic diagram of the air supply structure provided in an embodiment of the present application.

[0033] Figure 7 This is a fourth structural schematic diagram of the front view of the air supply structure provided in an embodiment of the present application.

[0034] Figure 8A schematic structural diagram of the baffle of the air supply structure provided in an embodiment of the present application.

[0035] Description of reference numerals:

[0036] 1. Refrigeration duct; 11. First refrigeration duct body; 111. First opening; 12. Second refrigeration duct body;

[0037] 2. Refrigeration air duct; 21. First refrigeration air duct body; 211. Second opening; 22. Second refrigeration air duct body; 221. Refrigeration air supply port;

[0038] 3. Baffle; 31. First plate; 311. First shielding portion; 312. First connecting portion; 313. Buckle; 32. Second plate; 321. Second shielding portion; 322. Second connecting portion;

[0039] 4. Box liner;

[0040] 5. Partition;

[0041] 6. Refrigerated room;

[0042] 7. Freezer compartment;

[0043] 8. Stopper. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0047] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0048] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0049] An embodiment of the present application provides an air supply structure and a refrigerator to solve the problem that the refrigeration damper and the freezing damper of the existing refrigerator need to be connected to a motor respectively, resulting in high manufacturing cost and use cost of the entire refrigerator. The following will be explained with reference to the accompanying drawings.

[0050] The air supply structure provided in the embodiment of the present application is applied to a refrigerator. Figure 1 and Figure 2The air supply structure includes a refrigeration duct 1, a freezing duct 2, a baffle 3, and a driving member. The freezing duct 2 is spaced apart from the refrigeration duct 1; the baffle 3 is slidably disposed through the refrigeration duct 1 and the freezing duct 2; and the driving member is configured to drive the baffle 3 to slide, so that the baffle 3 has a first state in which the refrigeration duct 1 is closed and the freezing duct 2 is opened, a second state in which the freezing duct 2 is closed and the refrigeration duct 1 is opened, a third state in which the freezing duct 2 and the refrigeration duct 1 are closed, or a fourth state in which the freezing duct 2 and the refrigeration duct 1 are opened.

[0051] The air supply structure provided in the embodiment of the present application is simultaneously slidably provided in the refrigeration air duct 1 and the freezing air duct 2 by a baffle 3, and the baffle 3 is driven to slide by a driving member, so that the baffle 3 moves to different positions, thereby realizing the opening or closing of the refrigeration air duct 1 and the freezing air duct 2 respectively, and the opening or closing of the refrigeration air duct 1 and the freezing air duct 2 does not affect each other. The manufacturing cost and the use cost of the air supply structure with only one baffle 3 and one driving member are relatively low.

[0052] Optionally, the driving member may be a linear motor or a hydraulic cylinder.

[0053] Optionally, the refrigeration duct 1 includes a first refrigeration duct body 11 and a second refrigeration duct body 12 relative to each other, and the freezing duct 2 includes a first freezing duct body 21 and a second freezing duct body 22 relative to each other. The baffle 3 includes a first plate 31 and a second plate 32. The first plate 31 includes a first shielding portion 311 and a first connecting portion 312. The first plate 31 is slidably clamped between the first refrigeration duct body 11 and the second refrigeration duct body 12, and the first refrigeration duct body 11 and the second refrigeration duct body 12 are connected through the first shielding portion 311 or the first connecting portion 312; the second plate 32 is connected to the first plate 31, and the second plate 32 includes a second shielding portion 321 and a second connecting portion 322. The second plate 32 is slidably clamped between the first freezing duct body 21 and the second freezing duct body 22, and the first freezing duct body 21 and the second freezing duct body 22 are connected through the second shielding portion 321 or the second connecting portion 322.

[0054] The first connecting portion 312 and the second connecting portion 322 may be through holes. The area of ​​the first shielding portion 311 is greater than or equal to the flow cross-section of the first refrigerating air duct body 11, and the area of ​​the second shielding portion 321 is greater than or equal to the flow cross-section of the first freezing air duct body 21, so as to respectively block the gas in the first refrigerating air duct body 11 from flowing into the second refrigerating air duct body 12 and block the gas in the first freezing air duct body 21 from flowing into the second freezing air duct body 22.

[0055] Optionally, the first refrigeration duct body 11 and the second refrigeration duct body 12 are arranged opposite to each other along the first direction, and the first freezing duct body 21 and the second freezing duct body 22 are arranged opposite to each other along the second direction; the first plate body 31 and the second plate body 32 are arranged at an angle to each other.

[0056] By arranging the first refrigeration duct body 11 and the second refrigeration duct body 12, and the first freezing duct body 21 and the second freezing duct body 22 relative to each other in different directions, the first plate body 31 and the second plate body 32 of the baffle 3 can be arranged at an angle accordingly. Therefore, when the first connecting portion 312 and the second connecting portion 322 are respectively sandwiched between the first refrigeration duct body 11 and the second refrigeration duct body 12, and between the first freezing duct body 21 and the second freezing duct body 22, the first connecting portion 312 and the second connecting portion 322 are arranged on different surfaces, thereby avoiding cross-flavoring of the airflow in the refrigeration duct 1 and the freezing duct 2 from the first connecting portion 312 and the second connecting portion 322, thereby ensuring the independent air supply characteristics of the refrigeration duct 1 and the freezing duct 2.

[0057] The angle between the first direction and the second direction is not further limited here. In some examples, it can be 90°, 120°, or 60°.

[0058] Optionally, the refrigerator includes a box liner 4 and a partition 5, the partition 5 is arranged in the box liner 4 and divides the box liner 4 into a first space and a second space, the first space is separated by a freezer compartment 7 and a refrigeration compartment 6; the first refrigeration duct body 11 is located in the second space, one end of the second refrigeration duct body 12 is arranged opposite to the first refrigeration duct body 11, and the other end is connected to the refrigeration compartment 6; one end of the first freezing air duct body 21 is located in the second space, and the other end extends into the freezing compartment 7, and the second freezing air duct body 22 is arranged in the freezing compartment 7 and opposite to the other end of the first freezing air duct body 21.

[0059] That is, the first freezing air duct body 21 and the second freezing air duct body 22 are connected within the freezing compartment 7 through the second connecting portion 322 of the second plate body 32, and the first refrigerating air duct body 11 and the second refrigerating air duct body 12 are connected within the second space through the first connecting portion 312 of the first plate body 31. Furthermore, the first space and the second space are separated and independent of each other by the partition plate 5, thereby further improving the independent air supply characteristics of the refrigerating air duct 1 and the freezing air duct 2 and preventing the airflow in the refrigerating air duct 1 and the freezing air duct 2 from cross-flavoring through the first connecting portion 312 and the second connecting portion 322. It will be understood that in this case, the baffle plate 3 is entirely a bent plate.

[0060] Furthermore, the refrigerated compartment 6 and the frozen compartment 7 are sequentially distributed along the direction of gravity. The refrigerated compartment 6 and the frozen compartment 7 are separated by an insulation board, which can be connected to the partition 5. The first plate 31 of the baffle 3 is horizontally arranged on the side of the insulation board close to the frozen compartment 7, and one end passes through the partition 5 and extends into the second space, and the other end extends into the frozen compartment 7 of the first space. The second plate 32 of the baffle 3 is vertically arranged in the frozen compartment 7 and connected to the other end of the first plate 31. At this time, please refer to Figure 3 The first refrigerating duct body 11 is located at the back of the freezer compartment 7, the second refrigerating duct body 12 is located at the back of the freezer compartment 6, and a portion of the first freezing duct body 21 is located at the back of the freezer compartment 7 and is spaced apart from the first refrigerating duct body 11. Another portion of the first freezing duct body 21 extends through the partition 5 into the freezer compartment 7, and the second freezing duct body 22 is located within the freezer compartment 7. Furthermore, the first refrigerating duct body 11 is adjacent to the portion of the first freezing duct body 21 located at the back of the freezer compartment 7.

[0061] Optionally, the second freezing air duct body 22 includes a plurality of freezing air supply ports 221, which are spaced apart along the direction of gravity. By spacing apart the plurality of freezing air supply ports 221 along the direction of gravity, the temperature of the freezing compartment 7 can be simultaneously lowered along the direction of gravity, thereby improving the temperature uniformity of the freezing compartment 7 along the direction of gravity.

[0062] Optionally, the first refrigeration duct body 11 includes a first opening 111 facing the second refrigeration duct body 12, and the first freezing duct body 21 includes a second opening 211 facing the second freezing duct body 22. Along the sliding direction of the baffle 3, the first opening 111 and the second opening 211 are spaced apart, and the flow cross-section of the first opening 111 is smaller than the flow cross-section of the first connecting portion 312, and the flow cross-section of the second opening 211 is smaller than the flow cross-section of the second connecting portion 322.

[0063] That is, the flow cross-sections of the first connecting portion 312 and the second connecting portion 322 are respectively larger than the first opening 111 and the second opening 211, so that the baffle 3 can open the refrigeration duct 1 or the freezing duct 2 separately when the first opening 111 and the second opening 211 are not on the same plane.

[0064] Optionally, along the sliding direction of the baffle 3, the first opening 111 is adjacent to the second opening 211, and the first opening 111 and the second opening 211 are the same size, the first connecting portion 312 and the second connecting portion 322 are the same size, and the flow cross-section of the first connecting portion 312 is twice the flow cross-section of the first opening 111.

[0065] For example, see Figure 4At this time, the first opening 111 and the second opening 211 are connected to the first connecting portion 312 and the second connecting portion 322 respectively. At this time, the refrigeration air duct 1 and the freezing air duct 2 are both open; when the baffle 3 is turned to Figure 4 When the left side slides the width of the first opening 111, the second opening 211 is blocked by the second blocking portion 321, and the first opening 111 is still connected to the first connecting portion 312. Figure 5 As shown, at this time, the refrigeration air duct 1 is open and the freezing air duct 2 is closed; when the baffle 3 is turned to Figure 4 When the width of the first opening 111 is slid to the right side, the first opening 111 is blocked by the first blocking portion 311, and the second opening 211 is connected to the first communicating portion 312 and the second communicating portion 322. Figure 6 As shown, at this time, the refrigeration air duct 1 is closed and the freezing air duct 2 is opened; when the baffle 3 is turned to Figure 4 When the width of the first connecting portion 312 is slid on the right side, the first opening 111 and the second opening 211 are blocked by the first blocking portion 311 and the second blocking portion 321, respectively. Figure 7 As shown, at this time, the refrigeration air duct 1 and the freezing air duct 2 are both closed.

[0066] In the above configuration, when the baffle 3 switches between each state, the travel distance is the shortest and the corresponding driving component is the most power-saving.

[0067] Optionally, a pair of stops 8 are provided on the refrigeration duct 1 and / or the freezing duct 2. The stops 8 are located at either end of the baffle 3 along its sliding direction and in sliding abutment with the baffle 3. In one specific embodiment, the refrigeration duct 1 is provided with a pair of stops 8; in another specific embodiment, the freezing duct 2 is provided with a pair of stops 8; and in another specific embodiment, each of the refrigeration duct 1 and the freezing duct 2 is provided with a pair of stops 8. The stops 8 provide additional limiting for the sliding of the baffle 3. When the baffle 3 slides to an edge, the stops 8 abut against the baffle 3 to prevent collision with other components.

[0068] Optionally, see Figure 8 The baffle 3 is provided with a buckle 313, which is slidably engaged with the side wall of the refrigeration duct 1 and / or the side wall of the freezing duct 2. In one specific embodiment, the buckle 313 is slidably engaged with the side wall of the refrigeration duct 1; in another specific embodiment, the buckle 313 is slidably engaged with the side wall of the freezing duct 2; in another specific embodiment, the buckle 313 includes a pair, one buckle 313 is slidably engaged with the side wall of the refrigeration duct 1, and the other buckle 313 is slidably engaged with the side wall of the freezing duct 2.

[0069] By providing the buckle 313, the connection strength between the baffle 3 and the refrigeration air duct 1 and / or the freezing air duct 2 is increased, the stability of the baffle 3 during the sliding process is ensured, and the baffle 3 is prevented from shifting during the sliding process.

[0070] An embodiment of the present application also provides a refrigerator, comprising the air supply structure as described above.

[0071] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0072] The above is a detailed introduction to the air supply structure and refrigerator provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An air supply structure, applied to a refrigerator, characterized in that: The air supply structure includes: Refrigeration duct; A freezing air duct is spaced apart from the refrigeration air duct; a baffle, slidably disposed through the refrigeration air duct and the freezing air duct; A driving member is used to drive the baffle to slide so that the baffle has a first state of closing the refrigeration air duct and opening the freezing air duct, or a second state of closing the freezing air duct and opening the refrigeration air duct, or a third state of closing the freezing air duct and the refrigeration air duct, or a fourth state of opening the freezing air duct and the refrigeration air duct.

2. The air supply structure according to claim 1, characterized in that: The refrigeration duct includes a first refrigeration duct body and a second refrigeration duct body opposite to each other, and the freezing duct includes a first freezing duct body and a second freezing duct body opposite to each other; The baffle comprises: a first plate, the first plate comprising a first shielding portion and a first connecting portion, the first plate being slidably disposed between the first refrigeration duct body and the second refrigeration duct body, and connecting the first refrigeration duct body and the second refrigeration duct body via the first shielding portion or the first connecting portion; The second plate body is connected to the first plate body, and the second plate body includes a second shielding portion and a second connecting portion. The second plate body is slidably clamped between the first refrigeration air duct body and the second refrigeration air duct body, and the first refrigeration air duct body and the second refrigeration air duct body are connected through the second shielding portion or the second connecting portion.

3. The air supply structure according to claim 2, characterized in that: The first refrigeration air duct body and the second refrigeration air duct body are arranged opposite to each other along a first direction, and the first freezing air duct body and the second freezing air duct body are arranged opposite to each other along a second direction; The first plate body and the second plate body are arranged at an angle to each other.

4. The air supply structure according to claim 3, characterized in that: The refrigerator comprises a box and a partition, wherein the partition is arranged in the box and divides the box into a first space and a second space, wherein the first space is separated by a freezing compartment and a refrigerating compartment; The first refrigeration air duct body is located in the second space, one end of the second refrigeration air duct body is arranged opposite to the first refrigeration air duct body, and the other end is connected to the refrigeration compartment; One end of the first freezing air duct body is located in the second space, and the other end extends into the freezing compartment. The second freezing air duct body is disposed in the freezing compartment and is opposite to the other end of the first freezing air duct body.

5. The air supply structure according to claim 4, characterized in that: The second refrigeration air duct body includes a plurality of refrigeration air supply ports, and the plurality of refrigeration air supply ports are distributed at intervals along the direction of gravity.

6. The air supply structure according to claim 2, characterized in that: The first refrigeration air duct body includes a first opening facing the second refrigeration air duct body, and the first freezing air duct body includes a second opening facing the second freezing air duct body. Along the sliding direction of the baffle, the first opening and the second opening are spaced apart, and the flow cross-section of the first opening is smaller than the flow cross-section of the first connecting portion, and the flow cross-section of the second opening is smaller than the flow cross-section of the second connecting portion.

7. The air supply structure according to claim 6, characterized in that: Along the sliding direction of the baffle, the first opening is adjacent to the second opening, and the first opening and the second opening are the same size, the first connecting portion and the second connecting portion are the same size, and the flow cross section of the first connecting portion is twice the flow cross section of the first opening.

8. The air supply structure according to claim 1, characterized in that: A pair of stoppers are provided on the refrigeration air duct and / or the freezing air duct. The pair of stoppers are respectively provided at two ends of the baffle along the sliding direction of the baffle and are in sliding contact with the baffle.

9. The air supply structure according to claim 1, characterized in that: The baffle is provided with a buckle, and the buckle is slidably engaged with the side wall of the refrigeration air duct and / or the side wall of the freezing air duct.

10. A refrigerator, characterized in that: The invention comprises an air supply structure as claimed in any one of claims 1 to 9.

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