CN219222991U

CN219222991U - Liner assembly for refrigerator and refrigerator

Info

Publication number: CN219222991U
Application number: CN202222716884.3U
Authority: CN
Inventors: 王瑞; 李大伟; 张强
Original assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-06-20
Anticipated expiration: 2032-10-14

Abstract

The application relates to the technical field of refrigeration equipment and discloses an inner container assembly for a refrigerator and the refrigerator. The liner assembly for a refrigerator includes: the bottom wall part of the inner container is upwards protruded to form air duct ribs, the number of the air duct ribs is multiple, and air guide grooves are formed between adjacent air duct ribs; the air outlet cover plate is covered above the air guide groove; the air duct rib is provided with a first notch, so that air flow in the air guide groove flows out of the first notch. The air outlet cover plate can prevent articles of the refrigerator from extending into the air guide groove to cause the blockage of the air guide groove. The air duct rib is provided with the first notch, so that air flow in the air guide groove can flow into the inner space through the first notch, the refrigeration effect of bottom air flow can be achieved, and the air guide groove can be prevented from being blocked.

Description

Liner assembly for refrigerator and refrigerator

Technical Field

The application relates to the technical field of refrigeration equipment, for example, to a liner assembly for a refrigerator and the refrigerator.

Background

At present, a large-scale horizontal refrigerator with a foam door on the market generally adopts a direct-cooling refrigeration mode, and in the use process, as the number of times of opening and closing the door is increased, frost and even ice can be formed on the refrigerator liner, so that the problem of defrosting is brought to a user, and meanwhile, the problems of reduction of storage space and rising of energy consumption can be caused.

The related art provides an air-cooled refrigerator, and the air-cooled refrigerator is equipped with the forced air cooling subassembly, and the forced air cooling subassembly generally includes evaporimeter chamber, evaporimeter, fan and wind channel etc. the evaporimeter forms the refrigeration air current with the air current heat transfer, and the fan is used for driving refrigeration air current and flows. At least one side wall of the inner container is provided with an air supply outlet, and the refrigerating air flows into the inner container through the air supply outlet to refrigerate articles in the inner container, so that frosting of the refrigerator can be reduced in an air cooling mode.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the refrigerator in the related art has the advantages that as more articles are stored in the refrigerator, air flow flowing out of the air supply outlet is blocked, the flow area of refrigerating air flow is affected, and then the refrigerating effect of the refrigerator is affected. It should be noted that the information disclosed in the foregoing background section is only for enhancement of understanding of the background of the present application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a liner assembly for a refrigerator and the refrigerator, so as to reduce the blocking effect of articles on refrigerating air flow flowing out of an air supply outlet and improve the refrigerating effect of the refrigerator.

The embodiment of the disclosure provides a liner assembly for a refrigerator, the liner assembly for a refrigerator includes: the bottom wall part of the inner container is upwards protruded to form air duct ribs, the number of the air duct ribs is multiple, and air guide grooves are formed between adjacent air duct ribs; the air outlet cover plate is covered above the air guide groove; the air duct rib is provided with a first notch, so that air flow in the air guide groove flows out of the first notch.

The embodiment of the disclosure also provides a refrigerator, which comprises the liner assembly for the refrigerator according to any one of the embodiments.

The embodiment of the disclosure provides a liner assembly for a refrigerator and the refrigerator, which can realize the following technical effects:

an air outlet cover plate is arranged above the air guide groove, and can prevent articles of the refrigerator from extending into the air guide groove to cause blockage of the air guide groove. The wind channel muscle is equipped with first breach for the air current in the wind-guiding groove can flow into the inner space through first breach in, can realize the refrigeration effect of bottom air current like this, can also avoid the wind-guiding groove to be stopped up, guarantees that the air current can smoothly flow to relative lateral wall. Through the inner bag subassembly of this embodiment, can improve the flow area of the interior air current of freezer, improve the smooth and easy nature that the air current flows, and then improve the refrigeration effect of freezer.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

fig. 1 is a schematic view of a refrigerator according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of another liner structure provided in an embodiment of the present disclosure;

FIG. 3 is a schematic view of an exploded construction of a liner provided in accordance with an embodiment of the present disclosure;

FIG. 4 is a schematic structural view of an air guiding structure provided by an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a mating structure of two evaporators provided by embodiments of the present disclosure;

FIG. 6 is a schematic view of an exploded view of a return air flap provided in accordance with an embodiment of the present disclosure;

FIG. 7 is a schematic view of a sidewall configuration provided by an embodiment of the present disclosure;

FIG. 8 is a schematic view of a structure of another view of an inner liner provided by an embodiment of the present disclosure;

FIG. 9 is a schematic view of another sidewall configuration provided by embodiments of the present disclosure;

FIG. 10 is a schematic view of the structure of a bottom wall provided by an embodiment of the present disclosure;

FIG. 11 is a schematic view of a liner and return air cover provided in an embodiment of the present disclosure;

FIG. 12 is a schematic view of a duct cover provided in accordance with an embodiment of the present disclosure;

fig. 13 is a schematic structural view of a bottom wall of a liner according to an embodiment of the present disclosure.

Reference numerals:

1. an inner container; 11. a sidewall; 111. a first sidewall; 112. a second sidewall; 113. a third sidewall; 114. a sidewall body; 115. a step; 116. an air supply duct; 1161. a first air supply duct; 1162. a second air supply duct; 1163. a third air supply duct; 1164. a fourth air supply duct; 1167. a fourth air supply port; 117. an air supply port; 1171. a first air supply port; 1172. a second air supply port; 1173. a second notch; 12. a bottom wall; 121. air duct ribs; 122. an air guide groove; 123. an air outlet cover plate; 124. a first notch; 13. an inner space; 131. a storage cavity; 132. an evaporator chamber; 2. a return air cover plate; 21. a first return air inlet; 22. a second return air inlet; 23. a third return air inlet; 24. a first sub-cover plate; 241. a first connection station; 25. a second sub-cover plate; 251. a second connection station; 26. a third sub-cover plate; 27. a side plate; 271. a top plate; 3. an evaporator; 31. a first evaporator; 32. a second evaporator; 33. heating pipes; 34. a fin; 342. a windward side; 37. a water outlet; 5. an air duct cover plate; 51. a cover plate body; 52. an air guiding structure; 521. a wind supply hole; 523. a frame; 524. a partition plate; 525. a sub-air supply port; 53. a first sub-duct cover plate; 532. a second sub-duct cover plate; 533. a plug board; 534. a plug-in groove; 535. a fifth buckle; 55. an air supply groove; 551. an air outlet groove; 552. a fan groove; 56. wind shielding ribs; 58. an air inlet; 6. a foam board; 61. a groove air duct; 7. a volute; 71. a bottom plate; 72. a volute cover plate; 73. a first housing wall; 74. a second housing wall; 77. an impeller; 78. a first air outlet; 79. a second air outlet; 8. a blower; 84. a first fan; 85. a second fan; 9. a fourth evaporator; 93. a third evaporator; 94. a case shell; 95. a door body; 96. a compressor.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

As shown in fig. 1 to 13, embodiments of the present disclosure provide a refrigerator, in particular an air-cooled refrigerator, and specifically an air-cooled horizontal refrigerator. The refrigerator comprises a box body and a door body 95, wherein the door body 95 is movably positioned above the box body. The box body comprises a box shell 94, an inner container 1 and a foaming layer, wherein the inner container 1 is positioned inside the box shell 94, and the foaming layer is positioned between the box shell 94 and the inner container 1. Optionally, the foaming layer is a thermal insulation material.

The liner 1 includes a bottom wall 12 and side walls 11, the side walls 11 including a front side wall, a rear side wall, a left side wall, and a right side wall. The front side wall and the rear side wall are disposed opposite to each other and are located at the front and rear ends of the bottom wall 12, respectively, and both extend upward. The left side wall and the right side wall are disposed opposite to each other, and are located at the left and right ends of the bottom wall 12, respectively, and extend upward. The bottom wall 12, front side wall, rear side wall, left side wall and right side wall together enclose an inner space 13. The inner space 13 has an opening, the opening is upward, and the door 95 is movably covered over the opening.

For convenience of description, as shown in fig. 11, the present application defines the front-rear direction as the width direction, and the left-right direction as the length direction.

The embodiment of the disclosure provides a refrigerator, the liner 1 includes a first side wall 111 and a second side wall 112, the first side wall 111 and the second side wall 112 are disposed along a width direction of the liner 1, and the first side wall 111 and the second side wall 112 each define an air supply duct 116 having an air supply opening 117. Here, the first sidewall 111 and the second sidewall 112 are disposed along the width direction of the liner 1, that is, the first sidewall 111 may be a rear sidewall or a front sidewall, and the second sidewall 112 may be a front sidewall or a rear sidewall, respectively. It can be understood that: the front and rear side walls each define an air supply duct 116 having an air supply opening 117. This can realize the air-out of the internal space 13, and further realize the air-cooling.

The refrigerator further comprises a return air cover plate 2, the return air cover plate 2 is located in the inner space 13 and divides the inner space 13 into a storage cavity 131 and an evaporator cavity 132, an outlet of the evaporator cavity 132 is communicated with an inlet of the air supply duct 116, the return air cover plate 2 is provided with a return air inlet, and air flow in the storage cavity 131 can flow into the evaporator cavity 132 through the return air inlet. Here, the storage chamber 131 is used to hold items to be frozen, such as meat, seafood, tea leaves, or the like. The evaporator chamber 132 is used for generating a refrigerating air flow, the refrigerating air flow can flow from the evaporator chamber 132 to the air supply duct 116, flow into the storage chamber 131 from the air supply opening 117, exchange heat with objects in the storage chamber 131, flow back into the evaporator chamber 132 for re-cooling, and flow back to the air supply duct 116 for circulation after cooling. Thus, the air path circulation of the refrigerator is realized, and the air cooling refrigeration of the refrigerator is realized.

It should be noted that the return air cover plate 2 may have various shapes, such as L-shape, inclined shape, etc. The evaporator chamber 132 can also be of various shapes and located in different locations of the interior space 13. For example, the evaporator chamber 132 may be located at the left, middle or right end of the inner space 13, and in practical applications, the evaporator chamber 132 and the storage chamber 131 may be arranged according to the structure of the inner space 13 of the refrigerator.

The refrigerator further includes an evaporator 3 and a fan 8, the evaporator 3 being located within the evaporator cavity 132. Alternatively, the blower 8 is located on the same side wall 11 as the air supply duct 116, and the blower 8 communicates with the air supply duct 116. The fan 8 can drive air flow to flow through the evaporator cavity 132, the air supply duct 116 and the storage cavity 131, and then flow back into the evaporator cavity 132 through the air return port, so that a circulating air path is formed. Here, the evaporator 3 is adapted to exchange heat with the air flow in the evaporator chamber 132 to form a refrigerant air flow. The fan 8 provides power for the airflow. The fan 8 and the air supply duct 116 are both positioned on the same side wall 11, so that the air flow flowing out of the fan 8 does not need to pass through a right-angle corner to the air supply duct 116, the loss of the air flow can be reduced, the refrigerating effect of the refrigerator is improved, and the energy consumption is reduced.

Optionally, as shown in fig. 11, fans 8 are disposed in the first side wall 111 and the second side wall 112, the number of fans 8 is plural, the plural fans 8 include a first fan 84 and a second fan 85, the first fan 84 is located in the first side wall 111, the first fan 84 is in communication with a first air supply duct 1161, and the first side wall 111 defines the first air supply duct 1161. The second fan 85 is located in the second side wall 112, the second fan 85 is in communication with a second air supply duct 1162, the second side wall 112 defines a second air supply duct 1162, and the air supply duct 116 includes a first air supply duct 1161 and a second air supply duct 1162. The thick arrows in fig. 11 indicate the air blowing direction of the first side wall 111 and the second side wall 112, and the thin arrows in fig. 11 indicate the air flow direction in the storage chamber.

In this embodiment, the air current of freezer flows from the return air inlet return air of return air apron 2 from first lateral wall 111 and second lateral wall 112, can shorten the flow distance of outflow air current, reduces the air current flow in-process and receives the barrier of midget, improves the forced air cooling refrigeration effect of freezer. Particularly, the refrigerating effect of the large horizontal refrigerator can be obviously improved, and the frosting effect of the liner 1 can be reduced by adopting air cooling, so that frosting-free effect of the refrigerator is realized, and the defrosting effect is solved.

Alternatively, the number of the air supply channels 116 is one or more, and when the number of the air supply channels 116 is plural, the plurality of air supply channels 116 are sequentially arranged at intervals along the height direction of the side wall 11.

Optionally, the number of the first air supply channels 1161 is one or more, and when the number of the first air supply channels 1161 is a plurality of the first air supply channels 1161 are sequentially arranged at intervals along the height direction of the first side wall 111; and/or, the number of the second air supply channels 1162 is one or more, and when the number of the second air supply channels 1162 is a plurality of, the plurality of second air supply channels 1162 are sequentially arranged at intervals along the height direction of the second side wall 112. In this embodiment, the arrangement of the plurality of first air supply channels 1161 and/or the plurality of second air supply channels 1162 enables the outlet air of the refrigerator to blow to each corner of the liner 1, so as to improve the refrigerating effect of the refrigerator.

Alternatively, the air supply duct 116 of one side wall 11 may be provided with at least one of the upper, middle and lower parts of the side wall 11, so as to enable air outlet to different positions of the liner 1.

As shown in fig. 7, for example, two air supply ducts 116 are provided in one side wall 11, and one air supply duct 116 is provided in each of the upper and lower parts of the side wall 11, where the air supply duct 116 in the upper part is used for cooling the middle upper part of the refrigerator, and the air supply duct 116 in the lower part is used for cooling the middle lower part of the refrigerator, so that the refrigerator can be cooled rapidly.

For example, two air supply channels 116 are provided in one side wall 11, and one air supply channel 116 is provided in each of the upper portion and the middle portion of the side wall 11, so that the upper middle portion of the liner 1 can be cooled.

For example, two air supply channels 116 are respectively provided on the first side wall 111 and the second side wall 112, specifically, the number of the first air supply channels 1161 is two, one first air supply channel 1161 is located at the upper portion of the first side wall 111 and is used for realizing air outlet of the upper portion of the liner 1, and one first air supply channel 1161 is located at the lower portion of the first side wall 111 and is used for realizing air outlet of the lower portion of the liner 1. Similarly, the number of the second air supply channels 1162 is two, one second air supply channel 1162 is located at the upper portion of the second side wall 112 and is used for realizing air outlet of the middle upper portion of the liner 1, and the other second air supply channel 1162 is located at the lower portion of the second side wall 112 and is used for realizing air outlet of the middle lower portion of the liner 1.

In some alternative embodiments, the number of first air supply ducts 1161 is the same as and corresponds to the number of second air supply ducts 1162. Therefore, the air outlets at the front side and the rear side in the refrigerator are uniform, and the air outlet uniformity of the refrigerator is improved. In other alternative embodiments, as shown in fig. 7 and 9, the number of the first air supply channels 1161 is different from the number of the second air supply channels 1162, so that the air outlet positions and the air outlet amounts of two opposite sides of the refrigerator can be different, and the air outlet positions of two sides can be complementary to increase the air outlet area of the refrigerator. Or different numbers of air supply channels 116 can be arranged according to the requirements of different side walls 11, so that the use flexibility of the refrigerator is improved.

Optionally, the first side wall 111 is provided with two first air supply channels 1161, the second side wall 112 is provided with one second air supply channel 1162, the two first air supply channels 1161 are respectively located at the middle part and the upper part of the first side wall 111, and the second air supply channel 1162 is located at the upper part of the second side wall 112. The first sidewall 111 is a rear sidewall, and the second sidewall 112 is a front sidewall. Thus, the rear side wall is provided with more air supply channels 116 to realize refrigeration, and the front side wall is provided with smaller air supply channels 116 to reduce heat loss of the air supply channels 116.

It should be noted that: the number and positions of the first and second

air supply ducts

1161 and 1162 may be set according to the use requirement, which is not specifically limited herein.

Optionally, the first air supply duct 1161 extends along a length direction of the liner 1, and/or the second air supply duct 1162 extends along a length direction of the liner 1. Because the length of the refrigerator liner 1 is longer, the air supply duct 116 extends along the length direction of the liner 1, so that the air supply area and the refrigerating capacity can be increased, and the refrigerating effect and the refrigerating uniformity of the refrigerator are improved.

Optionally, a first air supply duct 1161 has a plurality of first air supply openings 1171, and the plurality of first air supply openings 1171 are sequentially arranged at intervals along the extending direction of the first air supply duct 1161. The plurality of first air supply openings 1171 can realize the air outlet of the first air supply duct 1161 along the length direction, and the air outlet uniformity is increased. Optionally, a second air supply duct 1162 has a plurality of second air supply openings 1172, and the plurality of second air supply openings 1172 are sequentially arranged at intervals along the extending direction of the second air supply duct 1162. The plurality of second air supply openings 1172 can realize the air outlet of the second air supply duct 1162 along the length direction, and the air outlet uniformity is increased.

Optionally, the first fan 84 communicates with one or more first supply air ducts 1161. The second fan 85 is in communication with one or more second supply air ducts 1162. Here, one first fan 84 can simultaneously drive the flow of the air flow in the plurality of first air supply air ducts 1161, and likewise, one second fan 85 can simultaneously drive the flow of the air flow in the plurality of second air supply air ducts 1162. And finally, the air path circulation of the refrigerator can be realized.

Optionally, the blower 8 is located at one end of the side wall 11. For example, the first fan 84 is located at one end of the first side wall 111, and the second fan 85 is located at one end of the second side wall 112. The air flow from the fan 8 flows in one direction, and the diversion of the fan 8 is reduced.

Alternatively, as shown in fig. 7 and 8, when one side wall 11 is provided with a plurality of air supply ducts 116, at least two air supply ducts 116 of the plurality of air supply ducts 116 include a third air supply duct 1163 and a fourth air supply duct 1164; wherein, the side wall 11 part is concave towards the direction away from the inner space 13 to form a third air supply duct 1163 and/or the side wall 11 part is convex towards the inner space 13 to form a fourth air supply duct 1164.

In this embodiment, the inward recess of the third air supply duct 1163 may be understood as: the inner container 1 protrudes towards the foaming layer to form the third air supply duct 1163, so that one side of the occupied inner space 13 can be reduced, and one side of the inner space 13 is saved. The fourth air supply duct 1164 protrudes toward the inner direction, so that the air supply port 117 of the fourth air supply duct 1164 extends into the inner space 13, the air output of the fourth air supply duct 1164 can be increased, and the refrigerating effect on the inner space 13 is improved. Therefore, the refrigerator provided by the embodiment of the disclosure can save space and improve the refrigerating effect of the refrigerator.

Optionally, the fourth air supply duct 1164 has a plurality of air supply openings 117, and the air outlet directions of the plurality of air supply openings 117 are different.

In the present embodiment, the fourth air duct 1164 protrudes from the inner space 13, and thus, the plurality of air inlets 117 are provided, so that the air supply amount of the fourth air duct 1164 can be increased.

Alternatively, as shown by arrows in fig. 8, the plurality of air supply openings 117 include a horizontal air supply opening and a vertical air supply opening, the horizontal air supply opening extending in a horizontal direction for discharging air in the horizontal direction. The vertical air supply outlet extends along the vertical direction and is used for outputting air to the vertical direction. In this embodiment, the horizontal air supply port is directed to the horizontal direction to supply air, and the air flow can blow against the opposite side wall 11 to cool the articles in the inner space 13. The vertical air supply outlet is used for outputting air to the vertical direction, so that the air flow can flow to the upper part or the lower part, then flows to the air return outlet, and the air outlet range of the refrigerator can be improved.

Optionally, a vertical air supply port is located below the fourth air supply duct 1164 for supplying air to the lower side of the inner space 13. In this embodiment, the vertical air supply port is downward, and after the cooling air flows out from the vertical air supply port, the cooling air can flow to the bottom wall 12 of the liner 1, then flow to the opposite side wall 11 along the bottom wall 12, and part of the air flows upward to cool the articles in the inner space 13.

Optionally, the opening area of the horizontal air supply opening is larger than the opening area of the vertical air supply opening. Because the air flow flowing out of the horizontal air supply outlet is directly contacted with the articles, the air quantity of the horizontal air supply outlet is larger, so that the refrigerating effect of the refrigerator is ensured. The area ratio of the vertical air supply opening to the horizontal air supply opening is, for example, one sixth to one half.

Optionally, the third air supply duct 1163 and the fourth air supply duct 1164 extend along the length direction of the liner 1, and the third air supply duct 1163 is located above the fourth air supply duct 1164. In this embodiment, the third air supply duct 1163 is located below the fourth air supply duct 1164, so that the air outlet range of the third air supply duct 1163 is larger, and the third air supply duct 1163 is convenient to air out downwards or upwards.

For example, a third air duct 1163 is located at an upper portion of the sidewall 11, a fourth air duct 1164 is located at a middle portion of the sidewall 11, and the fourth air duct 1164 has a horizontal air outlet and a downward vertical air outlet.

Optionally, a fourth air supply port 1167 is provided at an end of the fourth air supply duct 1164, and the fourth air supply port 1167 communicates with the fourth air supply duct 1164 and the inner space 13. This reduces the air flow loss in the fourth air duct 1164 and increases the air output.

Optionally, the foam layer corresponding to the fourth air supply duct 1164 is recessed toward a direction away from the inner space 13, so as to increase the flow area of the fourth air supply duct 1164.

It should be noted that: the fourth air supply duct 1164 may be located at a lower portion or a middle portion of the side wall 11, and the number of the fourth air supply ducts 1164 may be one or more. The side wall 11 may be provided with only the fourth air supply duct 1164. In actual use, the fourth air supply duct 1164 and the third air supply duct 1163 may be set according to requirements, which is not specifically limited herein.

Optionally, the number of the evaporators 3 may be one or more, and when the number of the evaporators 3 is plural, the heat exchange effect of the air flow in the evaporator cavity 132 and the evaporator 3 can be increased, so that the refrigeration effect of the refrigerator can be improved. It should be noted that: the evaporator 3 is a plurality of air-out forms which are not limited to the application, and a plurality of evaporators 3 can be arranged in the evaporator cavity 132 for other refrigerators needing to be provided with the evaporator 3. For example, one of the front side wall and the rear side wall is provided with an air supply opening 117, the return air cover plate 2 is provided with an air path form of the return air opening, and a plurality of evaporators 3 can be arranged in the evaporator cavity 132. For another example, the return air cover plate 2 is provided with an air supply opening 117, and a bottom return air channel of the evaporator cavity 132 is formed, and a plurality of evaporators 3 can also be arranged in the evaporator cavity 132. This will not be described in detail in this application. Optionally, the fins of the evaporator 3 all extend in the vertical direction, so that more space above the fins can be avoided, and the storage basket and other components can be conveniently placed. Specifically, the width direction of the fins of the evaporator 3 extends in the vertical direction, so that more upper space can be avoided.

Alternatively, as shown in fig. 5, the number of evaporators 3 is the same as and corresponds to the number of fans 8 one by one, the plurality of evaporators 3 include a first evaporator 31 and a second evaporator 32, the first evaporator 31 is located in the evaporator cavity 132, the first evaporator 31 corresponds to the first fan 84 and is communicated with the first air supply duct 1161, and the air flow flowing into the air return opening by the first fan 84 drives the air flow flowing through the first evaporator 31 and then flows into the first air supply duct 1161. The second evaporator 32 is located in the evaporator cavity 132, the second evaporator 32 corresponds to the second fan 85 and is communicated with the second air supply duct 1162, and the second fan 85 drives the air flow flowing into the return air inlet to flow into the second air supply duct 1162 after flowing through the second evaporator 32. Here, the first evaporator 31 cooperates with the first fan 84 to drive the airflow in the first supply duct 1161. The second evaporator 32 cooperates with the second fan 85 to drive airflow within the second supply duct 1162. In this way, the temperatures of the air flows in the first air supply duct 1161 and the second air supply duct 1162 are adjustable, and the refrigerating capacities of the first air supply duct 1161 and the second air supply duct 1162 can be ensured.

It should be noted that: the number of evaporators 3 may be one, and the two fans 8 may drive air flows through one evaporator 3 and then flow to the first air supply duct 1161 and the second air supply duct 1162, respectively. Thus, the cost can be reduced, and the installation is convenient. The number of the evaporators 3 may be larger than two, and the user may reasonably arrange the number and positional relationship of the evaporators 3 according to the space of the evaporator chamber 132.

Alternatively, the first evaporator 31 and the second evaporator 32 are disposed in this order in the width direction of the liner 1. Here, since the first side wall 111 and the second side wall 112 are provided in the width direction of the liner 1, the first fan 84 and the second fan 85 are also provided in the width direction of the liner 1, and therefore, the first evaporator 31 and the second evaporator 32 are also provided in the width direction of the liner 1. The air flows flowing in from the air return port are convenient to flow to the first evaporator 31 and the second evaporator 32 respectively, and the air flows in two directions are prevented from being disturbed.

It should be noted that: other arrangements of the first evaporator 31 and the second evaporator 32 are also possible, and the first evaporator 31 and the first air supply duct 1161 can be communicated, and the second evaporator 32 and the second air supply duct 1162 are all in an alternative embodiment of the present application.

Optionally, the first evaporator 31 and the second evaporator 32 are arranged at intervals, a return air cavity is defined between the first evaporator 31 and the second evaporator 32, and the return air port corresponds to and is communicated with the return air cavity. Here, the first evaporator 31 and the second evaporator 32 are arranged at intervals to form a return air cavity, and the return air port corresponds to the return air cavity, so that air flows into the return air cavity through the return air port and then respectively flows to the first evaporator 31 and the second evaporator 32 at two sides, and the mutual interference of the air flows to the two evaporators 3 can be avoided.

Optionally, the number of the air return openings is one or more, and the plurality of the air return openings can improve the air return quantity of the refrigerator. At least one of the top of the evaporator chamber 132, the bottom of the evaporator chamber 132, and the side wall 11 of the evaporator chamber 132 facing the storage chamber 131 is provided with a return air opening. Here, the return air inlet is provided in the evaporator chamber 132, and the return air inlet is not provided in the side wall 11 of the liner 1, and the positions of the return air inlet and the air supply outlet 117 are moderate no matter where the air is discharged from the inner space 13, so that the uniformity of the airflow in the inner space 13 can be improved, and the uniformity of the temperature can be further improved. The air in each area of the inner space 13 can return to the refrigerating cavity nearby and then be recycled, so that vortex formation can be avoided, waste of air quantity is avoided, the air return quantity in the refrigerator is improved, and the refrigerating effect is finally improved.

Optionally, at least one of the top of the return air chamber, the side of the return air chamber facing the storage chamber 131, and the bottom of the return air chamber is provided with a return air inlet. The return air inlets are all arranged in the return air cavity, so that the loss of air flow flowing into the return air cavity can be reduced, and the smoothness of return air is improved.

Optionally, when the number of air returns is plural, the air return defining the top of the evaporator cavity 132 is the first air return 21, the air return defining the bottom of the evaporator cavity 132 is the third air return 2323, and the air return defining the side wall 11 of the evaporator cavity 132 facing the storage cavity 131 is the second air return 22. The first air return port 21, the second air return port 22 and the third air return port 2323 correspond to each other, so that the air inlets of the first air return port 21, the second air return port 22 and the third air return port 2323 can be mixed in the air return cavity more quickly and flow into the evaporator 3 quickly.

Optionally, the flow area of the air return opening is matched with the air return cavity, that is, the flow area of the air return opening is similar to or the same as the cross section area of the air return cavity, so that the air return quantity of the air return opening can be improved, the air return smoothness is improved, and the energy consumption is saved.

Optionally, the bottom wall 12 of the liner 1 is raised upwards to form a step 115, the compressor 96 is placed below the step 115, the return air cover plate 2 is covered above the step 115, the return air cover plate 2 and the step 115 enclose an evaporator cavity 132, and the evaporator 3 is located above the step 115. Because the refrigerator needs to be provided with components such as the compressor 96 and the condenser, the bottom wall 12 of the liner 1 protrudes upwards to form a step 115, and the lower part of the step 115 is used for avoiding the compressor 96. The present application locates the return air cover 2 above the step 115 such that the return air cover 2, the step 115 and the side wall 11 of the liner 1 can enclose the evaporator cavity 132. The evaporator 3 is located above the step 115, so that the evaporator 3 does not occupy too much space in the horizontal direction of the internal space 13, the storage volume of the storage cavity 131 is ensured, the evaporator cavity 132 is made more compact, and the heavy feeling inside the refrigerator is reduced.

Optionally, the return air cover plate 2 and the step 115 form a third return air opening 23 towards the side wall of the storage cavity, and the third return air opening 23 is located at the bottom of the return air cover plate 2.

Optionally, the bottom wall 12 of the evaporator chamber 132 is provided with a drain opening 37, the drain opening 37 being used for the drainage of the defrost water of the evaporator 3. When the evaporator 3 is one, the evaporator 3 is inclined toward the drain port 37 so as to drain the defrost water of the evaporator 3.

Alternatively, when there are a plurality of evaporators 3, the number of the water discharge openings 37 may be one or more, and when there is one water discharge opening 37, the plurality of evaporators 3 share one water discharge opening 37. When there are a plurality of water discharge openings 37, at least one water discharge opening 37 is provided for each evaporator 3. When the evaporator 3 includes the first evaporator 31 and the second evaporator 32, the defrost water of both the first evaporator 31 and the second evaporator 32 can be discharged through the drain.

In one particular embodiment, drain port 37 is located between first evaporator 31 and second evaporator 32. Here, the evaporator 3 may defrost by heating, and defrost water generated by the evaporator 3 can flow to the drain port 37 to be discharged out of the refrigerator.

Alternatively, the evaporator 3 is disposed obliquely toward the drain port 37 to facilitate the flow of the defrosting water. Alternatively, the first evaporator 31 is inclined downward in a direction from the first side wall 111 to the second side wall 112 so that the defrost water of the first evaporator 31 flows to the drain port 37; and/or, the second evaporator 32 is inclined downward in a direction from the second side wall 112 to the first side wall 111, so that the defrost water of the second evaporator 32 flows to the drain port 37. In this embodiment, the evaporator 3 is disposed obliquely, so that the defrosting water is discharged conveniently.

Alternatively, as shown in fig. 5, the evaporator 3 includes a windward side 342, and the windward side 342 communicates with a return air inlet, and the air flow flowing into the return air inlet flows into the evaporator 3 through the windward side 342. The refrigerator further comprises a heating pipe 33, wherein the heating pipe 33 is at least partially arranged on the windward side 342 and is used for heating the evaporator 3 to defrost.

In this embodiment, the evaporator 3 is prone to frost due to the low temperature of the evaporator 3, and particularly the windward side 342 of the evaporator 3 has a large air flow, and is in contact with the air flow, so that the influence on the smoothness of the air flow once the blockage occurs is large. Therefore, the requirement of defrosting the windward side 342 is larger, and the windward side 342 of the evaporator 3 is provided with the heating pipe 33, so that the defrosting efficiency of the evaporator 3 can be improved, and the defrosting thoroughness of the evaporator 3 can be improved.

Optionally, the heating pipe 33 is disposed at least on two adjacent walls of the evaporator 3, and the two adjacent walls include a windward side 342. Here, the heating pipes 33 are provided on both of the adjacent wall surfaces, so that the heating area of the heating pipes 33 can be increased, and the wall surface airflow flux adjacent to the windward side 342 is also large, so that the defrosting efficiency can be further improved by providing the heating wires.

In this embodiment, the heating pipe 33 is not only arranged on the windward side 342, but also the heating pipe 33 is arranged on the first wall surface and/or the second wall surface, so that the contact area between the heating pipe 33 and the evaporator 3 is increased, and the defrosting efficiency is improved.

Optionally, the distance between the fan 8 and the bottom of the evaporator chamber 132 is smaller than the distance between the fan 8 and the upper end surface of the liner 1. In this embodiment, the height of the fan 8 is reduced, so that the height of the evaporator cavity 132 corresponding to the fan 8 can also be reduced, and further more upper space can be avoided, thereby increasing the volume of the liner 1.

Optionally, the return air cover plate 2 is of unitary construction. To facilitate the production and installation of the return air cover plate 2.

Optionally, the return air cover plate 2 comprises a plurality of sub cover plates, and the sub cover plates are detachably connected or spliced. Here, it is described. The multiple sub-covers may be disassembled or spliced together to facilitate opening the evaporator chamber 132 for servicing and replacement. And the refrigerator is convenient for accomodate and place return air apron 2 in processing, transportation, dismouting in-process.

Optionally, at least two sub-cover plates of the plurality of sub-cover plates are detachably connected with the liner 1. In this embodiment, a plurality of sub-cover plates are detachably connected with the liner 1, so that the sub-cover plates are convenient to detach, and the connection stability of the sub-cover plates is also convenient. Wherein, a plurality of sub-cover plates can be all detachably connected with the liner 1, and also can be partially connected with the liner 1.

Alternatively, as shown in fig. 6, the plurality of sub-covers includes a first sub-cover 24, a second sub-cover 25, and a third sub-cover 26, and one end of the first sub-cover 24 is connected to the first sidewall 111. One end of the second sub-cover 25 is connected to the second side wall 112 of the liner 1, and the second side wall 112 and the first side wall 111 are disposed opposite to each other in the width direction of the liner 1. The third sub-cover plate 26 is connected between the other end of the first sub-cover plate 24 and the other end of the second sub-cover plate 25. Here, the first sub-cover 24 is connected to the first side wall 111, and the second sub-cover 25 is connected to the second side wall 112, so that the first sub-cover 24 and the second sub-cover 25 can be relatively fixed. The third sub-cover plate 26 is connected between the first sub-cover plate 24 and the second sub-cover plate 25, thereby realizing the connection of the three sub-cover plates.

Optionally, the first side wall 111 is configured with a first groove, and one end of the first sub-cover 24 is configured with a first protrusion, and the first protrusion is located in the first groove, so as to connect the first sub-cover 24 with the first side wall 111. Optionally, the second side wall 112 is configured with a second groove, and one end of the second sub-cover plate 25 is configured with a second protrusion, and the second protrusion is located in the second groove, so as to connect the second sub-cover plate 25 with the second side wall 112.

Optionally, the first sub-cover 24 is sealingly connected to the first side wall 111 and/or the second sub-cover 25 is sealingly connected to the second side wall 112. This ensures that the air flow from the evaporator chamber 132 to the fan 8 does not leak. For example, a sealing strip is provided between the first sub-cover 24 and the first side wall 111, and a sealing strip is also provided between the second sub-cover 25 and the second side wall 112.

The liner 1 further comprises a third side wall 113, the third side wall 113 is connected between the first side wall 111 and the second side wall 112, and the return air cover plate 2, the third side wall 113, the first side wall 111, the second side wall 112 and the bottom wall 12 of the liner 1 are enclosed together to form an evaporator cavity 132; wherein the first sub-cover 24 and/or the second sub-cover 25 are detachably connected to the third side wall 113.

In the present embodiment, the first side wall 111 and the second side wall 112 connect and fix the first sub-cover 24 and the second sub-cover 25 from the width direction of the liner 1. The third side wall 113 is located at a side of the evaporator 3 compartment facing away from the storage cavity 131, so that the third side wall 113 connects and fixes the first sub-cover plate 24 and the second sub-cover plate 25 at a side along the length direction of the liner 1. The whole return air cover plate 2 is fixed from three sides at least so as to ensure the connection stability of the return air cover plate 2 and avoid the return air cover plate 2 from shifting or falling off.

Optionally, the first sub-cover 24 is snap-fit or screw-connected to the third side wall 113. The second sub-cover 25 is snap-fit or screw-connected to the third side wall 113. One of the first sub-cover plate 24 and the third side wall 113 is provided with a first buckle, the other of the first sub-cover plate 24 and the third side wall 113 is provided with a first clamping groove, and when the first buckle is positioned in the first clamping groove, the first sub-cover plate 24 is connected with the third side wall 113. One of the second sub-cover plate 25 and the third side wall 113 is provided with a second buckle, the other of the second sub-cover plate 25 and the third side wall 113 is provided with a second clamping groove, and when the second buckle is positioned in the second clamping groove, the second sub-cover plate 25 is connected with the third side wall 113. The movement of the return air cover plate 2 in the up-down and front-rear directions is restricted by the connection of the first sub cover plate 24 and the second cover plate 223 to the third side wall 113.

Alternatively, the other end portion of the first sub-cover 24 is recessed downward to form a first connection stage 241, the other end portion of the second sub-cover 25 is recessed downward to form a second connection stage 251, and the third sub-cover 26 is overlapped over the first connection stage 241 and the second connection stage 251. In this embodiment, the third sub-cover plate 26 is lapped over the first connecting table 241 and the second connecting table 251, and the third sub-cover plate 26 can compress the first sub-cover plate 24 and the second sub-cover plate 25, so as to further increase the connection area and the connection stability between the three sub-cover plates.

Alternatively, when the return air cover plate 2 is covered on the step 115, the return air cover plate 2 is detachably connected with the step 115. This can further increase the connection stability of the return air cover plate 2.

Optionally, the storage chamber 131 and the evaporator chamber 132 are disposed along the length direction of the liner 1. Each sub-deck includes a top plate 271 and side plates 27, the top plate 271 being located above the steps 115. The side plate 27 is connected to one end of the top plate 271 and extends downward, and the side plate 27 is located outside the side wall 11 of the step 115 facing the storage chamber 131; wherein the top plate 271 is connected with the third side wall 113, and the side plate 27 is connected with the side wall 11 of the step 115 facing the storage chamber 131. Alternatively, the return air cover plate 2 is an L-shaped cover plate, so that the space of the return air cover plate 2 occupying the inner space 13 in the horizontal direction can be reduced,

in this embodiment, the top plate 271 is configured to enclose the step 115 to form the evaporator chamber 132. The side plate 27 serves to enclose the side of the evaporator chamber 132 on the one hand, and the side plate 27 extends downward and is connected to the step 115 on the other hand, so that the connection stability of the return air cover plate 2 can be increased.

Optionally, the side plate 27 is screwed with the side wall 11 of the step 115 facing the storage chamber 131. Specifically, the first sub-cover plate 24, the second sub-cover plate 25 and the third sub-cover plate 26 are all connected with the step 115 by screws.

In actual use, the first sub-cover plate 24 and the second sub-cover plate 25 are installed first, the positions of the buckles and the falling holes are aligned at the same time, then the third sub-cover plate 26 is pressed on the first connecting table 241 of the first sub-cover plate 24 and the second connecting table 251 of the second sub-cover plate 25, and then the third sub-cover plate 26 is connected with the liner 1 through screws, so that the connection of the three sub-cover plates is realized.

It should be noted that: the number of the screw holes and the buckles or the clamping grooves of each sub-cover plate can be one or a plurality of, the application is not particularly limited, and the number and the positions of the screw holes and the buckles or the clamping grooves can be set according to requirements.

Optionally, the third sub-cover 26 is provided with an air return port, and since the third sub-cover 26 is connected between the first sub-cover 24 and the second sub-cover 25, the air return port is provided on the third sub-cover 26, so that air return from the middle part of the air return cover 2 is facilitated.

Optionally, the third sub-cover 26 corresponds to the return air compartment. It can be understood that: the third sub-cover plate 26 encloses a return air chamber with the top wall of the step 115. Thus, when the return air cavity or the return air inlet needs to be cleaned or the evaporator 3 needs to be overhauled, only the third sub-cover plate 26 needs to be opened. Moreover, since the third sub-cover plate 26 of the present application is overlapped over the first sub-cover plate 24 and the second sub-cover plate 25, the disassembly of the first sub-cover plate 24 does not affect the first sub-cover plate 24 and the second sub-cover plate 25.

Optionally, as shown in fig. 5, the refrigerator further includes a foam board 60, the foam board 60 is located in the evaporator chamber 132 and above the evaporator 3, and the foam board 60 is detachably connected to the return air cover plate 2. Here, the foam is used for performing heat insulation treatment on the upper side of the evaporator 3, so as to avoid the loss of cold energy of the evaporator 3, and ensure the heat exchange effect of the air flow and the evaporator 3.

Optionally, one of the return air cover plate 2 and the foam board 60 is provided with a third buckle, the other of the return air cover plate 2 and the foam board 60 is provided with a third clamping groove, and when the third buckle is positioned in the third clamping groove, the return air cover plate 2 is connected with the foam board 60. The foam board 60 inwards sunken forms the third draw-in groove, and return air apron 2 is equipped with the third buckle, and the third buckle is located the third draw-in groove, and the third buckle forms the butt board towards third draw-in groove protrusion, and the up end of butt board can with the lower terminal surface looks butt of foam board 60, foam board 60 can be connected as an organic wholely with return air apron 2 like this. So that the return air cover plate 2 and the foam plate 60 are connected and then are installed on the evaporator 3 and the inner container 1 as a whole. Optionally, the number of the third buckles is multiple, part of the third buckles are disposed at one end of the return air cover plate 2 facing the third side wall 113, and part of the third buckles are disposed at intervals along one end of the return air cover plate 2 facing the first side wall 111. The number of the third clamping grooves is the same as that of the third clamping buckles and the third clamping grooves correspond to one another one by one. This can increase the stability of the connection of the return air cover plate 2 to the foam board 60 without interfering with other connection components. Optionally, the foam board 60 is matched with the air return cover board 2, and the third buckle can also be arranged on the end surface of the side board 27 facing the foam board 60, so that the opposite ends of the air return cover board 2 and the foam board 60 can be connected, and the connection stability is improved. It should be noted that: the return air cover plate 2 can be connected with the foam board 60 by other modes, such as screws, magnetic attraction, adhesion, etc., which will not be described in detail herein.

Optionally, the first sub-deck 24 is detachably connected to the foam deck 60 and/or the second sub-deck 25 is detachably connected to the foam deck 60.

Alternatively, the foam board 60 is abutted against at least one side of the evaporator 3, where abutting means that the foam board 60 is abutted against or close to the evaporator 3. Wherein, the foam board 60 is at least partially recessed towards one side of the evaporator 3 to form a groove air channel 61, and the groove air channel 61 communicates the return air inlet and the evaporator 3, so that the air flow flowing in from the return air inlet can flow through the evaporator 3 from the groove air channel 61.

In this embodiment, when the return air surface of the evaporator 3 frosts, the air quantity flowing into the evaporator 3 becomes small, and the wind resistance becomes large, so that the refrigerating effect of the refrigerator is affected. The foam board 60 of the evaporator 3 is recessed to form a groove air channel 61, so that even if the return air surface of the evaporator 3 is frosted, air flow can still flow into the evaporator 3 from the groove air channel 61, and the air flow quantity of the evaporator 3 is ensured. In addition, the arrangement of the groove air channel 61 can also increase the air return quantity of the middle evaporator 3, and improve the refrigerating effect of the refrigerator.

It should be noted that: the foam sheet 60 may not be provided above the evaporator 3, and the installation position of the foam sheet 60 may be selected according to the installation direction or the position of the evaporator 3.

Alternatively, as shown in fig. 3, the side wall 11 includes a side wall body 114 and an air duct cover plate 5, the air duct cover plate 5 is located at one side of the side wall body 114 facing the inner space 13, the air duct cover plate 5 and the side wall body 114 enclose an air supply duct 116 together, the air duct cover plate 5 is configured with a plurality of air supply openings 117, and the plurality of air supply openings 117 are sequentially arranged at intervals along the extending direction of the air supply duct 116; the fan 8 is in communication with the supply air duct 116 for driving an air flow in the supply air duct 116.

In the present embodiment, the air flow of the air supply duct 116 flows into the internal space 13 through the air supply port 117 of the duct cover 5. The plurality of air supply openings 117 are arranged along the extending direction of the air supply duct 116, so that the air output of the air supply openings 117 is increased, the air flow flowing into the inner space 13 is further improved, and the refrigerating effect of the refrigerator is improved.

Alternatively, the flow area of the supply air duct 116 gradually decreases in the flow direction of the air flow in the supply air duct 116. In the present embodiment, since the air supply power gradually decreases with the flow direction of the air flow, the flow area of the air supply duct 116 gradually decreases with the flow direction of the air flow, so that the downstream air output can be increased. In addition, the air outlet pressure of the downstream of the air supply duct 116 is reduced, the air outlet area of the air supply opening 117 can be reduced, local heat exchange is avoided from being too fast, and the refrigeration uniformity of the refrigerator is ensured.

Optionally, the cross-sectional area of the end of the air supply duct 116 is constant in width to ensure the air supply area of the air supply port 117 of the end.

Optionally, the plurality of air outlets 117 further includes a third air outlet, where the third air outlet is located at an end of the air supply duct 116, and an opening area of the third air outlet is greater than an opening area of the air outlet 117 upstream of the third air outlet, so that an air outlet at the end of the air supply duct 116 is increased, so that the refrigerating air flow can cover the inner space 13 in a larger area, and a refrigerating effect is improved. And the air passage in the air supply duct 116 is more smooth, so that the air outlet uniformity of the refrigerator is improved.

Alternatively, as shown in fig. 3 and 4, the arrow in fig. 4 indicates the flow direction of the air flow in the supply air duct, and the duct cover 5 includes a cover body 51 and an air guiding structure 52, and the cover body 51 is configured with an air supply opening 117. The air guiding structure 52 is located in the air supply opening 117, and the air guiding structure 52 is configured with a plurality of air supply holes 521, and the plurality of air supply holes 521 are arranged in a honeycomb shape. The height of the air guiding structure 52 towards one side of the air supply duct 116 increases gradually along the flow direction of the air flow in the air supply duct 116.

In this embodiment, the air guiding structure 52 is disposed in the air supply opening 117, and the air guiding structure 52 can guide the air flow flowing out of the air supply opening 117, so that the air flow flowing out of the air supply opening 117 is controllable. The side of the air guiding structure 52 facing the air supply duct 116 gradually increases along with the flowing direction of the air flow, so that the resistance of the tail end of an air supply opening 117 is increased, the flowing speed of the air flow is reduced, the resistance of the tail end of the air supply opening 117 is increased, the flowing speed of the air flow is reduced, and the phenomenon that part of air outlet 521 is over-fast in air outlet speed and part of air outlet 521 returns air is avoided, so that the air outlet of the air supply opening 117 is more uniform. In addition, the plurality of honeycomb-shaped air supply holes 521 can uniformly divide the cold air into a plurality of smaller cold air flows when passing through the air supply opening 117, so that not only is the flow rate of each cold air flow smaller, but also the air output is more uniform, and the temperature of each part of the refrigerator is ensured to be more uniform. The honeycomb-shaped air supply hole 521 has strong directional air-out capability, so that air is supplied to a long distance along the direction of the air supply hole 117.

Alternatively, the plurality of air feed holes 521 are uniformly arranged. Thus, the plurality of air supply holes 521 are uniformly arranged in a honeycomb shape, so that the area of each air supply hole 521 is relatively small, the difference of the air speeds blown out from the edges of each air supply hole 521 is small, the influence of single-side air outlet is small, the air outlet quantity is more uniform, and the temperature of each part of the refrigerator is more uniform.

Optionally, the air supply opening 117 includes a plurality of sub air supply openings 525, and the plurality of sub air supply openings 525 are sequentially arranged at intervals along the length direction or the width direction of the air supply opening 117; the number of the air guiding structures 52 is the same as and corresponds to the number of the sub-air supplying openings 525 one by one.

In this embodiment, one air supply opening 117 is divided into a plurality of sub air supply openings 525, and each sub air supply opening 525 is provided with an air guiding structure 52, so that the width direction of the cover plate body 51 of the air supply opening 117 is further adjustable, and uniformity and flexibility of air outlet are improved.

Optionally, the air supply hole 521 extends along the air outlet direction, and an included angle exists between the extending direction of the air supply hole 521 and the extending direction of the corresponding sub air supply hole 525. In this embodiment, the extending direction of the air-sending hole 521 and the extending direction of the corresponding sub-air-sending hole 525 have an included angle, that is, the air flow flowing out of the air-sending hole 117 can be inclined by the diversion structure, so that the user can adjust the air-sending direction of the air-sending hole 521 according to the requirement, and the flexibility and uniformity of the air-sending of the refrigerator are improved.

Alternatively, the air supply hole 521 is inclined downward in a direction from the air supply duct 116 to the inner space 13. The air-out of the air-supply hole 521 can not blow upwards, and under the condition that the upper part of the refrigerator is provided with the glass door, the air-out of the refrigerator can be prevented from blowing to the glass door, so that the heat exchange between the inner space 13 and the outside is reduced, and the frosting of the glass door is avoided.

Specifically, the included angle between the air supply hole 521 and the cover plate body 51 ranges from 0 ° to 30 °, where when the included angle between the air supply hole 521 and the cover plate body 51 is greater than 30 °, a portion of the air flow flowing out of the air supply hole 521 still has an upward flow tendency, and the air flow can flow downward better due to the fact that the included angle is smaller than 30 °. Specifically, the included angle between the air supply hole 521 and the cover plate body 51 may be 10 °, 15 °, 20 °, 25 °, and the like.

Optionally, the air guiding structure 52 includes a frame 523 and a partition 524, the frame 523 defining an air outlet channel; the partition 524 is located in the air outlet channel to divide the air outlet channel into a plurality of air supply holes 521. The frame 523 and the partition 524 are parallel to the center line of the air blowing hole 521, and the height of the partition 524 toward one side of the air blowing duct 116 is gradually increased. In the present embodiment, the frame 523 and the partition 524 form a plurality of air-sending holes 521, and the structural strength of the plurality of air-sending holes 521 can be increased.

Alternatively, the air supply holes 521 are arranged in a plurality of rows, so that the air outlet area of each sub-air supply hole 525 can be increased.

Optionally, at least one frame of the frame 523 extends toward a side facing away from the air supply duct 116 and protrudes from the cover body 51 to prevent foreign objects from falling into the air supply hole 521. In the present embodiment, the frame 523 protrudes from the cover plate body 51, so that the air-sending hole 521 can be covered, and foreign matters can be prevented from falling into the air-sending hole 521 to block the air-sending hole 521.

Alternatively, as shown in fig. 4, the air guiding structure 52 is obliquely disposed in the sub-air outlet 525, wherein the air guiding structure 52 is inclined upward in a direction from the air supply duct 116 to the inner space 13, the upper frame 523 of the air guiding structure 52 protrudes from the side of the cover plate body 51 facing the inner space 13, and the lower frame 523 of the air guiding structure 52 protrudes from the side of the cover plate body 51 facing the air supply duct 116. Thus, the downward inclination air outlet of the air supply hole 521 can be realized, the air supply hole 521 can be shielded, and the air supply hole 521 is prevented from being blocked. The frame 523 includes an upper frame 523 and a lower frame 523.

The refrigerator further comprises a door body 95, the upper part of the inner space 13 is opened, and the door body 95 is movably covered at the opening. Optionally, the upper wall surface of the bottom wall 12 and/or the lower wall surface of the door 95 are configured with air guide grooves 122, and the air guide grooves 122 extend in the width direction of the liner 1 (i.e., extend in the front-rear direction), and the air guide grooves 122 can cooperate with the air supply openings 117 to enable the air flow of the air supply openings 117 to flow from rear to front or from front to rear. Thus, the flow area of the air flow is increased, the uniformity of air supply is improved, the temperature of the inner space 13 is more uniform, and the refrigerating effect of the refrigerator is improved.

Optionally, as shown in fig. 2 and 10, the embodiment of the disclosure provides a liner assembly for a refrigerator, where the liner assembly for a refrigerator includes a liner 1 and an air outlet cover 123, where a bottom wall 12 portion of the liner 1 protrudes upwards to form an air duct rib 121, and an air guide groove 122 is formed between adjacent air duct ribs 121. The refrigerator further comprises an air outlet cover plate 123, and the air outlet cover plate 123 is arranged above the air guide groove 122 in a covering mode. The air duct rib 121 is provided with a first notch 124, so that air flow in the air guide groove 122 flows out of the first notch 124.

In this embodiment, the upper portion of the air duct 122 of the bottom wall 12 is open, and the air duct 122 is easily blocked by the articles because the articles are placed in the inner space 13. An air outlet cover plate 123 is arranged above the air guide groove 122, and the air outlet cover plate 123 can prevent objects of the refrigerator from extending into the air guide groove 122 to cause blockage of the air guide groove 122. The air duct rib 121 is provided with the first notch 124, so that the air flow in the air guide groove 122 can flow into the inner space 13 through the first notch 124, and thus the refrigeration effect of the bottom air flow can be realized, the air guide groove 122 can be prevented from being blocked, and the air flow can be ensured to smoothly flow to the opposite side wall 11.

Optionally, the first notch 124 extends in a horizontal direction, so that the cooling air flow in the air guiding slot 122 can flow into the inner space 13 from the side surface of the air guiding slot 122.

Alternatively, the plurality of air guide grooves 122 are provided in sequence in the width direction or the length direction of the liner 1. The number of the air duct cover plates 5 is smaller than that of the air guide grooves 122, and the air duct cover plates 5 are arranged above the air guide grooves 122 at intervals along the arrangement direction of the air guide grooves 122, so that the air guide grooves 122 adjacent to the air guide grooves 122 covered by the air duct cover plates 5 are not provided with the air duct cover plates 5, and the air flow at the first notch 124 can flow out conveniently.

Optionally, the air duct rib 121 includes a plurality of sub air duct ribs, the sub air duct ribs are sequentially spaced along the extending direction of the air guiding slot 122, and a first notch 124 is formed between adjacent sub air duct ribs. In this embodiment, the adjacent ribs of the sub-air duct form the first notch 124, which can realize the flow guiding function and the air outlet function.

Optionally, the lengths of the plurality of sub-duct ribs gradually decrease along the flow direction of the air flow in the air guide groove 122. In this embodiment, the lengths of the plurality of sub-air duct ribs are gradually reduced, that is, the first notches 124 are gradually thickened, so that the air volume is gradually reduced along with the flow of the air flow, the power of the air flow is gradually reduced, the density of the first notches 124 is gradually increased, and the air outlet volume of the downstream air guide groove 122 can be increased, so that the air outlet of the refrigerator is more uniform.

Optionally, the number of the first notches 124 is plural, and the opening area of the first notches 124 gradually increases along the flow direction of the airflow in the airflow guiding slot 122. In this embodiment, along with the airflow, the air volume gradually decreases, the power of the airflow gradually decreases, and the opening area of the first notch 124 gradually increases, so that the air outlet volume of the downstream air guide groove 122 can be improved, so that the air outlet of the refrigerator is more uniform.

Optionally, the side wall body 114 defines an air supply slot 55, the lower side wall 11 of the air supply slot 55 is provided with a second notch 1173, and the air supply duct 116 is communicated with the air guide slot 122 through the second notch 1173. The air duct cover 5 is disposed on one side of the air supply groove 55 and the second gap 1173 facing the inner space 13, so that the air in the air supply duct 116 flows into the air guide groove 122 through the second gap 1173.

In this embodiment, the second notch 1173 penetrates through the lower sidewall 11 of the air supply slot 55, so that the air supply duct 116 communicates with the air guide slot 122 through the second notch 1173. Thus, the air flow in the air blowing groove 55 can efficiently flow into the air guide groove 122, and the loss of the air flow can be reduced.

Optionally, the air duct cover 5 is further provided with an air supply opening 117, and the air supply opening 117 corresponds to the second notch 1173. In this way, the air-blowing port 117 can share the pressure at the second notch 1173, and the cooling air flow in the air-blowing duct 55 can directly flow to the internal space 13 through the air-blowing port 117.

Optionally, when the number of the air supply openings 117 is plural, at least a part of the air supply openings 117 in the plurality of air supply openings 117 corresponds to the second gap 1173.

Alternatively, the air supply opening 117 may not correspond to the second notch 1173, and the air supply opening 117 and the second notch 1173 are sequentially staggered along the extending direction of the air supply groove 55, so that the air can be directly supplied to the internal space 13 through the air supply opening 117, or the air can be discharged from the bottom through the second notch 1173 and the air guide groove 122, and flows to the opposite side, thereby improving the range and uniformity of the supplied air.

Alternatively, the air guide groove 122 extends in the width direction or the length direction of the liner 1. Here, the extending direction of the air guide groove 122 is related to the installation position of the air blowing groove 55, and when the air blowing groove 55 is provided on the front side wall and/or the rear side wall of the liner 1, the air guide groove 122 extends in the width direction of the liner 1. When the air supply groove 55 is provided on the left side wall and/or the right side wall of the liner 1, the air guide groove 122 extends along the longitudinal direction of the liner 1.

Optionally, the air outlet cover 123 is detachably connected with the liner 1. This facilitates removal of the outlet cover 123 to clean the air chute 122. The air outlet cover plate 123 and the bottom wall 12 of the liner 1 can be detachably connected in a manner of clamping, magnetic attraction or screws.

In practical applications, the fan 8 can drive the air flow to flow from the air supply duct 116 to the air guiding slot 122 through the air supply opening 117 and the second gap 1173, and drive the air flow to flow in the air guiding slot 122.

The embodiment of the disclosure also provides a refrigerator, which comprises the liner assembly for the refrigerator of any one of the embodiments. The refrigerator provided by the embodiment of the disclosure, because of including the liner assembly for a refrigerator according to any one of the embodiments, has the beneficial effects of the liner assembly for a refrigerator according to any one of the embodiments, and is not described herein.

Optionally, as shown in fig. 3, the side wall body 114 of the refrigerator is recessed towards the direction away from the inner space 13 to form an air supply groove 55, and the air duct cover plate 5 is covered on one side of the air supply groove 55 towards the inner space 13, and the air duct cover plate 5 includes a plurality of sub air duct cover plates, and the plurality of sub air duct cover plates 5 are detachably connected or spliced.

In this embodiment, the air duct cover 5 covers a side of the air supply slot 55 facing the inner space 13, so that air flow can flow into the inner space 13 through the air supply opening 117 of the air duct cover 5. The air duct cover plate 5 is formed by connecting a plurality of sub air duct cover plates 5, so that the air duct cover plate 5 is convenient to detach and install, and the air supply groove 55 and/or the air supply opening 117 are convenient to overhaul and clean. It should be noted that: in some alternative embodiments, the air duct cover 5 may also be provided with an air return port, and the air flow in the storage cavity 131 can flow into the air supply slot 55 through the air return port, so that the air duct cover 5 may also include a plurality of sub air duct covers 5, and the plurality of sub air duct covers 5 may be detachably connected or spliced. In addition, in the embodiment of the disclosure, even if the single sub-air duct cover plate 5 is deformed and damaged, only the single sub-air duct cover plate 5 needs to be replaced, and the whole air duct cover plate 5 does not need to be replaced, so that the cost can be saved, and the maintenance is convenient.

Optionally, the duct cover 5 is detachably connected to the sidewall body 114.

In this embodiment, the air duct cover 5 is also detachably connected to the side wall body 114, so that the air duct cover 5 is conveniently taken out to clean the air supply groove 55 and the air port (the air supply port 117 or the air return port).

Optionally, as shown in fig. 3, one of the air duct cover 5 and the side wall body 114 is provided with a buckle (for convenience of distinction, hereinafter, collectively referred to as a fifth buckle 535), the other of the air duct cover 5 and the side wall body 114 is provided with a slot (for convenience of distinction, hereinafter, collectively referred to as a fifth slot) adapted to the buckle, and when the fifth buckle 535 is located in the fifth slot, the air duct cover 5 is connected to the side wall body 114. In this embodiment, the air duct cover plate 5 is connected with the side wall body 114 through the fifth buckle 535 and the fifth clamping groove, which has simple structure, easy operation and processing, and lower cost.

Optionally, the number of the fifth hooks 535 is plural, and the plural fifth hooks 535 are sequentially arranged at intervals along the extending direction of the air supply duct 116. The number of the fifth clamping grooves is the same as that of the fifth clamping grooves and corresponds to the fifth clamping grooves one by one. This can increase the connection stability of the duct cover 5 and the sidewall body 114.

Optionally, a fifth buckle 535 or a fifth slot is provided on both sides of the air outlet 117 to further increase the connection stability between the duct cover 5 and the sidewall body 114.

Optionally, the duct cover 5 and the sidewall body 114 are also connected by fasteners. In order to ensure the connection stability of the duct cover 5, it can be fastened again by means of fasteners, such as screws.

Optionally, the plurality of sub-duct cover plates 5 include a first sub-duct cover plate 53 and a second sub-duct cover plate 532, one end of the first sub-duct cover plate 53 is configured with one of a plug board 533 and a plug slot 534, one end of the second sub-duct cover plate 532 is configured with the other one of the plug board 533 and the plug slot 534, the plug slot 534 is adapted to the plug board 533, and when the plug board 533 is located in the plug slot 534, the first sub-duct cover plate 53 is connected with the second sub-duct cover plate 532. In this embodiment, two adjacent sub-duct cover plates 5 are connected through a plug board 533 and a plug slot 534, so as to facilitate installation and disassembly.

Optionally, the air supply slot 55 extends along the length direction of the side wall 11, and the first sub-duct cover 53 and the second sub-duct cover 532 are sequentially disposed along the length direction of the side wall body 114. This facilitates the disassembly and assembly between the adjacent duct cover plates 5, and does not affect the arrangement of the air supply opening 117.

Optionally, the air supply groove 55 includes a fan groove 552 and an air outlet groove 551, the fan groove 552 is used for placing the fan 8, the number of the air outlet grooves 551 is multiple, the air outlet grooves 551 are all communicated with one fan groove 552, and the air outlet grooves 551 are sequentially arranged at intervals along the height direction of the side wall 11; the first sub-air duct cover plate 53 is at least partially covered on one side of the fan slot 552 facing the inner space 13, the number of the second sub-air duct cover plates 532 is the same as and corresponds to the number of the air outlet slots 551 one by one, and the first sub-air duct cover plate 53 is connected with the plurality of second sub-air duct cover plates 532.

In this embodiment, the fan grooves 552 are used for placing the fans 8, and one fan groove 552 is communicated with a plurality of air outlet grooves 551, so that the air outlet of the fans 8 can flow to the plurality of air outlet grooves 551 at the same time, and air supply of a plurality of air supply channels 116 is realized. The first sub-air duct cover 53 is at least partially disposed on the fan slot 552 and is used for covering the fan 8, that is, the first sub-air duct cover 53 and the sidewall body 114 form an air supply cavity, and the fan 8 is disposed in the air supply cavity. The second sub-duct cover 532 is disposed on a side of each air outlet groove 551 facing the inner space 13, so as to realize air outlet of each side air supply duct 116.

Optionally, the first sub-air duct cover 53 includes a fan cover and a split cover that are connected, where the fan cover is disposed on a side of the fan 8 facing the inner space 13, one end of the split cover is connected to the fan cover, and the other end of the split cover is located on a side of the plurality of air outlet grooves 551 facing the inner space 13. That is, the first sub duct cover 53 also covers part of the air outlet groove 551. Therefore, the air flow flowing out of the air supply cavity can smoothly flow into the air outlet groove 551, and leakage is avoided.

Optionally, the number of the split cover plates is the same as and corresponds to the number of the air outlet grooves 551 one by one, and the split cover plates are provided with air outlets 117, so that the side walls 11 can realize air outlet in the length direction.

Optionally, the fan cover protrudes towards the inner space 13, so that the fan 8 can be avoided for facilitating the placement of the fan 8. The fan cover plate is provided with an air inlet 58, the air inlet 58 is communicated with the evaporator cavity 132, and the fan 8 is positioned at the air inlet 58, so that the fan 8 can drive air flow in the evaporator cavity 132 to flow into the air supply duct 116 from the air inlet 58 and then flow out through the air supply opening 117 of the air supply duct 116.

Optionally, the return air cover plate 2 is connected to a side of the fan cover plate facing the inner space 13, and the upper end of the return air cover plate 2 is located at the upper end of the air inlet 58, so that the air flow in the evaporator cavity 132 can be ensured to completely flow into the air supply duct 116.

Optionally, when the return air cover plate 2 is connected to the first side wall 111, the fan cover plate corresponding to the first side wall 111 is configured with a first groove. When the return air cover plate 2 is connected with the second side wall 112, a second groove is formed in the fan cover plate corresponding to the second side wall 112.

The air duct cover 5 is disposed on a side of the air supply slot 55 facing the inner space 13, so that the air duct cover 5 and the sidewall body 114 enclose together to form an air supply duct 116. The air supply groove 55 includes a fan groove 552 and an air outlet groove 551, and the first sub-air duct cover plate 53 is at least partially covered on a side of the fan groove 552 facing the inner space 13, so that the first sub-air duct cover plate 53 encloses the air supply cavity with the side wall body 114, the second sub-air duct cover plate 532 is covered on a side of the air outlet groove 551 facing the inner space 13, the second sub-air duct cover plate 532 encloses the air outlet air duct with the side wall body 114, and the first sub-air outlet cover plate 123 covers a part of the air outlet groove 551 and the side wall body 114 to also enclose the air outlet air duct, so that the air supply duct 116 includes the air supply cavity and the air outlet air duct.

Optionally, as shown in fig. 12, the refrigerator further includes a wind shielding rib 56, the wind shielding rib 56 is located in the air supply duct 116, the wind shielding rib 56 is located at one side of at least one air supply opening 117, and the air supply opening 117 and the wind shielding rib 56 are sequentially arranged along the flowing direction of the air flow.

In this embodiment, the air supply opening 117 and the wind shielding rib 56 are disposed in sequence along the flow direction of the air flow, which can be understood as: the wind shielding rib 56 is located at one side of the air supply opening 117 away from the fan 8, so that the wind shielding rib 56 can block part of air flow, the air flow rebounds to form vortex after impacting the wind shielding rib 56, the air flow in the vortex flows into the air supply opening 117 again, and the air quantity of a weak wind area at one end of the air supply opening 117 away from the fan 8 can be increased. By the arrangement of the wind shielding ribs 56, the air outlet uniformity of the air supply outlet 117 is improved, and the air outlet uniformity of the refrigerator is further improved.

Optionally, the wind shielding ribs 56 are disposed on a side of the air duct cover 5 facing the air supply duct 116, and when the wind shielding ribs 56 protrude from the air duct cover 5, and the number of the wind shielding ribs 56 is plural, each wind shielding rib 56 corresponds to an air supply opening 117, and the heights of the wind shielding ribs 56 protruding from the air duct cover 5 gradually increase along the flow direction of the air flow in the air supply duct 116.

Alternatively, as shown in fig. 3, the fan 8 includes an impeller 77 and a volute 7, the impeller 77 is located in the volute 7, the volute 7 is configured with a plurality of air outlets, and the number of the air outlets is the same as that of the air supply channels 116 and corresponds to one.

In this embodiment, the plurality of air supply channels 116 share one fan 8, and the fan 8 is located on the same side of the plurality of air supply channels 116, and the volute 7 of the fan 8 is provided with an air outlet corresponding to the air supply channels 116, so that the air outlet of one fan 8 can flow to the plurality of air channels on the same side at the same time, so as to ensure the air flow of each air supply channel 116.

Optionally, when the same side wall 11 is provided with a plurality of air supply ducts 116, the plurality of air supply ducts 116 includes a third air supply duct 1163 and a fourth air supply duct 1164, the fan 8 includes a bottom plate 71, a first shell wall 73 and a second shell wall 74, and the first shell wall 73 is connected to one end of the bottom plate 71; the second casing wall 74 is connected to the other end of the bottom plate 71 and is disposed opposite to the first casing wall 73, and the bottom plate 71, the second casing wall 74 and the first casing wall 73 enclose a housing chamber having one end opened. The volute cover plate 72 covers the opening of the accommodating cavity, the volute cover plate 72 and the accommodating cavity enclose to form a fan cavity, and the volute cover plate 72 is provided with the air inlet 58. The fan chamber is used to house the impeller 77. The first casing wall 73 and the second casing wall 74 define a first air outlet 78 and a second air outlet 79, the first air outlet 78 is communicated with the third air supply duct 1163, the second air outlet 79 is suitable for being communicated with the fourth air supply duct 1164, and the plurality of air outlets include the first air outlet 78 and the second air outlet 79.

In this embodiment, the first air outlet 78 and the second air outlet 79 are respectively connected to the third air supply duct 1163 and the fourth air supply duct 1164, and are used for supplying air to the third air supply duct 1163 and the fourth air supply duct 1164 from one fan 8.

Optionally, the air outlet direction of the first air outlet 78 and the air outlet direction of the second air outlet 79 are located at the same side of the fan 8, and an included angle exists between the air outlet direction of the first air outlet 78 and the air outlet direction of the second air outlet 79. So that the blower 8 can supply air to the air supply duct 116 on the same side at the same time.

Optionally, when the refrigerator includes the first fan 84 and the second fan 85, for example, when the first fan 84 is located on the front side wall and the second fan 85 is located on the rear side wall, the first fan 84 and the second fan 85 are opposite and correspondingly disposed, and the first fan 84 and the second fan 85 are both disposed on the right side of the liner 1. Alternatively, the first fan 84 and the second fan 85 may each rotate clockwise, wherein the second fan 85 rotates clockwise and the air outlet of the volute 7 of the second fan 85 is on the left side. The first fan 84 rotates clockwise, and the volute 7 of the first fan 84 is on the right. That is, the volutes 7 of the first fan 84 and the second fan 85 are different. Alternatively, the rotation directions of the first fan 84 and the second fan 85 are different, for example, the first fan 84 rotates clockwise, and the second fan 85 rotates counterclockwise, that is, the air outlet of the volute 7 of the first fan 84 is located on the right side, and the outlet of the volute 7 of the second fan 85 is on the left side, that is, the first fan 84 and the second fan 85 are mirror images. The air flow resistance of the two fans 8 is small, so that the air flow smoothness of the two fans 8 is ensured, and the air outlet uniformity of the refrigerator is improved.

Alternatively, the volute cover plate 72 of the present application may be provided independently, or may be integrally formed with the fan cover plate. That is, the scroll cover 72 and the fan cover are integrated, the scroll cover 72 can be arranged at the opening of the accommodating cavity, and can also be arranged at one side of the fan groove 552 facing the inner space 13, and the scroll cover 72 is provided with the air inlet 58 communicated with the inner space 13. Therefore, a fan cover plate or a volute cover plate 72 is not required to be arranged independently, the installation is convenient, the cost is saved, the production efficiency is improved, the sealing foam is not required to seal the interface between the volute 7 and the air supply air duct 116, and the sealing performance is good. When the volute cover plate 72 is integrated with the fan cover plate, the characteristics of the fan cover plate are applicable to the volute cover plate 72, and the characteristics of the volute cover plate 72 are applicable to the fan cover plate.

Optionally, when the volute cover plate 72 and the fan cover plate are combined into a whole, the first sub-air duct cover plate 53 is positioned at one side of the volute 7 facing the inner space 13, and the volute 7 and the first sub-air duct cover plate 53 enclose a fan cavity together; the fan 8 is located in the fan cavity. Specifically, the volute 7 is detachably connected or fixedly connected with the first sub-air duct cover plate 53. The wall section matched with the spiral case 7 is constructed on one side of the first sub-air duct cover plate 53 facing the fan groove 552, so that the connection between the first sub-air duct cover plate 53 and the spiral case 7 can be realized, and the tightness is ensured.

Optionally, as shown in fig. 9, the refrigerator further includes a fourth evaporator 9, the fourth evaporator 9 is located on the bottom wall 12, and the fourth evaporator 9 can exchange heat with the articles in the inner space 13 to perform refrigeration.

The bottom wall 12 of the refrigerator is provided with a fourth evaporator 9, and the fourth evaporator 9 can directly exchange heat with the articles in the storage cavity 131, that is, the fourth evaporator 9 adopts a direct cooling mode to carry out direct cooling. Like this the freezer has forced air cooling and direct cooling function simultaneously, and dual refrigeration can improve cooling speed by a wide margin, can reduce the frosting of freezer, can also guarantee the refrigeration efficiency and the refrigeration effect of freezer, reduces the energy consumption.

Alternatively, the fourth evaporator 9 is laid in a curved manner on the bottom wall 12, and the density of the fourth evaporator 9 is gradually decreased in a direction from the side wall 11 to the center of the inner space 13.

In this embodiment, the density of the fourth evaporator 9 gradually increases from the side wall 11 to the center of the inner space 13, that is, the two sides of the fourth evaporator 9 are dense and the middle is sparse, so that on one hand, the cost can be reduced, and on the other hand, the fourth evaporator 9 and the air supply opening 117 of the side wall 11 cooperate to form a quick freezing area, so that the flexibility of using the refrigerator is improved.

Optionally, the fourth evaporator 9 is provided on the side of the bottom wall 12 facing away from the inner space 13. This protects the fourth evaporator 9 and prevents the fourth evaporator 9 from coming into direct contact with the user and frostbite the user.

Optionally, when the bottom wall 12 of the refrigerator is provided with the fourth evaporator 9, the air supply duct 116 is provided in the middle and/or upper portion of the side wall 11. So that the bottom of the inner space 13 is directly cooled and the middle and upper portions are air cooled. Triple refrigeration can greatly improve the cooling speed. Meanwhile, the upper layer continuously circulates the wind, so that frosting of the cabinet opening of the liner 1 and the liner 1 can be avoided.

It should be noted that: when the refrigerator is provided with the fourth evaporator 9, the technical features related to the refrigerator are also applicable to the direct cooling and air cooling refrigerators, which have the same technical effects and are not described herein.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. 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 liner assembly for a refrigerator, comprising:

the bottom wall part of the inner container is upwards protruded to form air duct ribs, the number of the air duct ribs is multiple, and air guide grooves are formed between adjacent air duct ribs and used for guiding airflow to flow;

the air outlet cover plate is covered above the air guide groove;

the air duct rib is provided with a first notch, so that air flow in the air guide groove flows out of the first notch.

2. The liner assembly for a refrigerator according to claim 1, wherein,

the air duct ribs comprise a plurality of sub air duct ribs, the sub air duct ribs are sequentially arranged at intervals along the extending direction of the air guide groove, and a first notch is formed between every two adjacent sub air duct ribs.

3. A liner assembly for a refrigerator according to claim 2,

and the lengths of the plurality of sub-air duct ribs are gradually reduced along the flow direction of the air flow in the air guide groove.

4. A liner assembly for a refrigerator according to claim 2,

the number of the first notches is multiple, and the opening area of the first notches is gradually increased along the flowing direction of the air flow in the air guide groove.

5. The liner assembly for a refrigerator of claim 1 wherein the liner encloses an interior space, the liner including a sidewall comprising:

the side wall body is used for defining an air supply groove, a second notch is formed in the lower side wall of the air supply groove, and the air supply groove is communicated with the air guide groove through the second notch;

the air duct cover plate is covered on one side of the air supply groove, which faces the inner space, and the second notch is arranged on the air duct cover plate, so that air in the air supply groove flows through the second notch and flows into the air guide groove.

6. The liner assembly for a refrigerator according to claim 5, wherein,

and the air duct cover plate is also provided with an air supply opening, and the air supply opening corresponds to the second notch.

7. The liner assembly for a refrigerator according to claim 1, wherein,

the air guide groove extends along the width direction or the length direction of the inner container; and/or the number of the groups of groups,

the number of the air guide grooves is multiple, and the air guide grooves are sequentially arranged at intervals along the width direction or the length direction of the liner.

8. The liner assembly for a refrigerator according to any one of claims 1 to 7, wherein the outlet cover is detachably connected to the liner.

9. A refrigerator comprising a liner assembly for a refrigerator as claimed in any one of claims 1 to 8.

10. The cooler of claim 9, wherein the side wall defines an air supply duct, the air supply duct being in communication with both the air supply port and the second notch, the cooler further comprising:

the fan is positioned in the same side wall with the air supply duct and is used for driving air flow to flow into the air guide groove from the air supply duct and the second notch.