CN219222978U - Air duct cover plate for refrigeration equipment and refrigeration equipment - Google Patents

Abstract

The application relates to the technical field of refrigeration equipment, and discloses an air duct cover plate for refrigeration equipment and the refrigeration equipment. The refrigeration equipment includes an inner container, the inner container includes a first side wall and a second side wall that are oppositely arranged, the air channel cover plate is suitable for enclosing the inner container to form a cavity, the air channel cover plate includes a plurality of cover plates, and the plurality of covers The panel includes: a first cover plate adapted to be connected to one of the first side wall and the second side wall; a second cover plate adapted to be connected to the other of the first side wall and the second side wall; Wherein, the first cover plate is provided with one of the first card slot and the first protrusion, the second cover plate is provided with the other of the first card slot and the first protrusion, and the first card slot and the first protrusion Adaptively, when the first engaging groove is matched with the first protrusion, the first cover plate and the second cover plate are connected. The card slot and protrusion are used for connection, the connection method is simple and easy to operate, and the connection is stable.

Description

Air duct cover plate for refrigeration equipment and refrigeration equipment

technical field

The present application relates to the technical field of refrigeration equipment, for example, to an air duct cover plate used for refrigeration equipment and the refrigeration equipment.

Background technique

At present, the large-scale foam door horizontal freezers currently on the market generally adopt the direct cooling refrigeration method. During use, as the number of opening and closing doors increases, frost or even ice will form on the inner tank of the freezer, which will cause defrosting problems for users. At the same time, it will also lead to the problem of reduced storage space and increased energy consumption.

An air-cooled refrigerator is provided in the related art. An air-cooled refrigerator is generally provided with an air duct cover plate in an inner tank, and the air duct cover plate and the inner tank enclose a cavity, and an evaporator and/or a fan are placed in the cavity. The refrigerating airflow driven by the fan to exchange heat with the evaporator flows into the storage space to realize the air-cooled refrigeration of the refrigerator.

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

In the related art, since the evaporator and/or the fan occupy a large space, the air duct cover plate has a relatively large size, which makes it inconvenient to overhaul and replace the parts of the cavity.

It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the application, and therefore may include information that does not constitute prior art known to those of ordinary skill in the art.

Utility model content

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is presented below. The summary is not intended to be an extensive overview nor to identify key/important elements or to delineate the scope of these embodiments, but rather serves as a prelude to the detailed description that follows.

Embodiments of the present disclosure provide an air duct cover plate for a refrigeration device and the refrigeration device, so as to improve the convenience of inspection and maintenance of various components in a cavity.

An embodiment of the present disclosure also provides an air duct cover plate for a refrigeration device, the refrigeration equipment includes an inner container, the inner container includes a first side wall and a second side wall oppositely arranged, and the air channel cover plate It is suitable for forming a cavity by enclosing the inner tank, and the air duct cover plate includes a plurality of cover plates, and the plurality of cover plates include: a first cover plate, which is suitable for connecting with the first side wall and the second side wall. One of the side walls is connected; the second cover is adapted to be connected with the other of the first side wall and the second side wall; wherein, the first cover is provided with a first card slot and one of the first protrusions, the second cover plate is provided with the other of the first card slot and the first protrusion, and the first card slot is compatible with the first protrusion Matching, when the first card slot is matched with the first protrusion, the first cover plate is connected with the second cover plate.

Optionally, the first cover includes: a first sub-cover, the first end of the first sub-cover is adapted to be connected to one of the first side wall and the second side wall ; the second sub-cover, the first end of the second sub-cover is connected to the second end of the first sub-cover, and the second end of the second sub-cover is provided with the first One of the slot and the first protrusion, and the second sub-cover is connected to the second cover.

Optionally, the first sub-cover is detachably connected to the second sub-cover.

Optionally, the second end of the first sub-cover is provided with one of the second slot and the second protrusion, and the first end of the second sub-cover is provided with the second slot and the second protrusion. For the other of the second protrusions, the second card slot is compatible with the second protrusion, and when the second protrusion is located in the second card slot, the first sub-cover The board is connected to the second sub-cover board.

Optionally, the first end of the second cover plate is connected to the other of the first side wall and the second side wall, and the second end of the second cover plate is provided with a plurality of The first protrusions, a plurality of the first protrusions are sequentially arranged at intervals along the length direction of the second end of the second cover plate, and a first groove is formed between two adjacent first protrusions; The second end of the first sub-cover is provided with a plurality of second protrusions, and the plurality of second protrusions are sequentially arranged at intervals along the length direction of the second end of the first sub-cover. A second groove is formed between the two second protrusions.

Optionally, the second end of the second sub-cover is provided with a first card slot, and along the length direction of the second end of the second cover, the length of the first groove is longer than that of the first card. The length of the groove is such that the first locking groove can be inserted into the first groove, and then slide along the first groove, so that the first locking groove is matched with the first protrusion; The first end of the second sub-cover is provided with a second slot, and along the length direction of the second end of the first sub-cover, the length of the second groove is greater than the length of the second slot so that the second card slot can be inserted into the second groove, and then slide along the second groove to make the second card slot cooperate with the second protrusion.

Optionally, the first locking slot is located on a side of the second sub-cover facing the cavity, so that when the second sub-cover is connected to the second cover, the first The second ends of the two cover plates are in contact with the second ends of the second sub-cover plate; and/or, the second locking groove is located on the side of the second sub-cover plate facing the cavity, so that When the first sub-cover is connected to the second sub-cover, the second end of the first sub-cover abuts against the first end of the second sub-cover.

Optionally, the liner further includes a bottom wall and a third side wall, the third side wall is connected between the first side wall and the second side wall, the first side wall, the Both the second side wall and the third side wall are connected to the bottom wall and extend upwards, and the air channel cover plate is suitable for connecting with the first side wall, the second side wall, the The cavity is enclosed by the third side wall and the bottom wall; each of the cover plates includes: a top plate, adapted to be connected with the third side wall; a side plate, located on the top plate away from the first side wall One side of the three side walls extends downward; wherein, the corresponding top plates of the plurality of cover plates are connected.

Optionally, the bottom wall part protrudes upwards to form a step, the compressor is placed under the step, the air duct cover plate is adapted to be located above the step, and the side plate and the step The end faces away from the third side wall are connected; and/or, at least one of the plurality of cover plates is provided with a vent, and the vent communicates with the cavity.

Embodiments of the present disclosure also provide a refrigeration device, which includes: the air duct cover liner for a refrigeration device according to any one of the above embodiments, including a plurality of side walls, a plurality of the The side walls enclose the internal space, at least one of the side walls defines an air supply duct with an air supply port; the air duct cover plate is located in the internal space, and the air duct cover plate separates the internal space It is a storage chamber and a refrigeration chamber, the storage chamber, the refrigeration chamber and the air supply duct form a circulation air path, the refrigeration chamber includes a cavity; the fan is located in the circulation air path, the The fan can drive the airflow in the refrigerating chamber to flow into the air duct, then flow into the storage chamber through the air outlet, and then the airflow in the storage chamber flows back to the storage chamber through the vent. The refrigerating cavity; the evaporator is located in the refrigerating cavity.

The air duct cover plate for refrigeration equipment and refrigeration equipment provided by the embodiments of the present disclosure can achieve the following technical effects:

The air duct cover plate is divided into a plurality of cover plates, and the cover plates are detachably connected by slots and protrusions. In this way, the large-sized air duct cover plate can be divided into multiple cover plates for disassembly, thereby facilitating maintenance and replacement of components in the cavity. It is also convenient to clean the tuyere of the cavity and foreign objects or blockages inside the cavity. Moreover, the card slot and protrusion are used for connection, the connection method is simple and easy to operate, and the connection is stable. Compared with the screw connection, the card slot and protrusion connection method will not cause the problem of screw loss during installation and disassembly, making the air duct The installation and removal of the cover plate is more convenient.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the corresponding drawings, and these exemplifications and drawings do not constitute a limitation to the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings are not limited to scale and in which:

FIG. 1 is a schematic structural view of an air duct cover provided by an embodiment of the present disclosure;

Fig. 2 is a schematic diagram of an exploded structure of an air duct cover provided by an embodiment of the present disclosure;

Fig. 3 is a structural schematic diagram of another viewing angle of an air duct cover plate provided by an embodiment of the present disclosure;

Fig. 4 is an exploded schematic view of another viewing angle of an air duct cover plate provided by an embodiment of the present disclosure;

Fig. 5 is a schematic diagram of cooperation between an inner tank and an air duct cover provided by an embodiment of the present disclosure;

Fig. 6 is a schematic diagram of a cooperating structure of an inner container and an evaporator provided by an embodiment of the present disclosure;

Fig. 7 is a schematic cross-sectional structure diagram of an inner container and an evaporator provided by an embodiment of the present disclosure;

Fig. 8 is a schematic diagram of another inner tank and the air duct cover provided by an embodiment of the present disclosure;

Fig. 9 is a schematic cross-sectional structure diagram of another liner and evaporator provided by an embodiment of the present disclosure.

Reference signs:

10. Inner container; 101. Storage chamber; 102. Refrigeration chamber; 1021. Foreign matter compartment; 103. Air supply duct; 1031. Air supply port; 104. First side wall; 105. Second side wall; 106. The first Three side walls; 107, bottom wall; 109, air supply cover plate; 20, evaporator; 40, air duct cover plate; 411, top plate; 412, side plate; 401, air return port; 4011, first return air port; , the second air return port; 4013, the third air return port; 402, the first cover plate; 4021, the first sub cover plate; 4022, the second sub cover plate; 403, the second cover plate; 404, the air vent; 405, The first protrusion; 4051, the first groove; 406, the first slot; 407, the second protrusion; 4071, the second groove; 408, the second slot; 50, the step; 501, the drain; 70 , fan.

Detailed ways

In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, 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 be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances so as to facilitate the embodiments of the disclosed embodiments described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear" etc. are based on the orientations or positional relationships shown in the drawings. Positional relationship. These terms are mainly used to better describe the embodiments of the present disclosure and their implementations, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, some of the above terms may be used to indicate other meanings besides orientation or positional relationship, for example, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. Those skilled in the art can understand the specific meanings of these terms in the embodiments of the present disclosure according to specific situations.

In addition, the terms "setting", "connecting" and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or two devices, components or Internal connectivity between components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure according to specific situations.

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

The term "and/or" is an associative relationship describing objects, indicating that there can be three relationships. For example, A and/or B means: A or B, or, A and B, these three relationships.

It should be noted that, in the case of no conflict, the embodiments and the features in the embodiments of the present disclosure may be combined with each other.

As shown in FIG. 1 to FIG. 4 , an embodiment of the present disclosure provides an air duct cover plate 40 for a refrigeration device. The refrigeration device includes an inner tank 10 including a plurality of side walls, and the inner tank 10 encloses the interior. Space, a plurality of side walls include a first side wall 104 and a second side wall 105 that are oppositely arranged, that is to say, the first side wall 104 and the second side wall 105 can be left and right side walls, or can be front and rear side walls, The air duct cover plate 40 is suitable for enclosing the inner container 10 to form a cavity, the air duct cover plate 40 includes a plurality of cover plates, and the cover plates are detachably connected or spliced together. here. Multiple cover plates can be disassembled or spliced, which is convenient for opening the cavity for inspection and replacement. Moreover, the air duct cover plate 40 is convenient to be accommodated and placed during the processing, transportation, and disassembly of the refrigerator.

For the convenience of description, as shown in FIG. 5 and FIG. 8 , the present application defines the front-back direction as the width direction, and the left-right direction as the length direction.

Optionally, the plurality of cover plates include a first cover plate 402 and a second cover plate 403, the first cover plate 402 is adapted to be connected with one of the first side wall 104 and the second side wall 105; the second cover plate 403 is adapted to be connected with the other of the first side wall 104 and the second side wall 105; wherein, the first cover plate 402 is provided with one of the first card slot 406 and the first protrusion 405, and the second cover plate 403 is provided with the other of the first card slot 406 and the first protrusion 405, the first card slot 406 and the first protrusion 405 are matched, when the first card slot 406 is matched with the first protrusion 405, the second A cover plate 402 is connected with a second cover plate 403 .

In this embodiment, the first cover plate 402 is connected to one of the first side wall 104 and the second side wall 105, and the second cover plate 403 is connected to the other of the first side wall 104 and the second side wall 105. connection, that is to say, the first cover plate 402 and the second cover plate 403 are respectively connected to the two opposite side walls of the inner container 10, so that the air duct cover plate 40 and the two side walls of the inner container 10 are enclosed and formed cavity. The first cover plate 402 and the second cover plate 403 are connected through the slot and the protrusion, and the connection is stable. Moreover, the connection mode of the card slot and the protrusion is easy to operate, and it is convenient to disassemble and install.

Optionally, the first cover 402 includes a first sub-cover 4021 and a second sub-cover 4022, and the first end of the first sub-cover 4021 is suitable for connecting with the first side wall 104 and the second side wall 105. One is connected; the first end of the second sub-cover 4022 is connected with the second end of the first sub-cover 4021, and the second end of the second sub-cover 4022 is provided with a first card slot 406 and a first protrusion 405, and the second sub-cover 4022 is connected to the second cover 403.

In this embodiment, the first cover plate 402 can be divided into multiple sections, so that when the size of the first cover plate 402 is large, the first cover plate 402 can also be divided into multiple sections, thereby facilitating the disassembly of the air duct cover plate 40, so that Overhaul and maintain the components inside the cavity.

Optionally, the second cover 403 includes a third sub-cover and a fourth sub-cover, the first end of the third sub-cover is connected to the other of the first side wall 104 and the second side wall 105, The second end of the third sub-cover is connected to the first end of the fourth sub-cover, the second end of the fourth sub-cover is provided with the other of the slot and the protrusion, and the fourth sub-cover is connected to The second end is connected with the first cover plate 402 .

In this embodiment, the second cover 403 can also be arranged in multiple sections. When the size of the second cover 403 is large, setting the second cover 403 in multiple sections is also convenient for disassembly and installation of the second cover 403 .

It can be understood that: the first cover 402 may include one or more sub-covers, or the second cover 403 may also include one or more sub-covers. In practical applications, the number of sub-covers of the first cover 402 and/or the second cover 403 can be set according to requirements, which is not specifically limited in this application.

The air duct cover plate 40 can be divided into two, such as the first cover plate 402 and the second cover plate 403, and can also be divided into three or more, such as: the first sub-cover plate 4021, the second sub-cover plate 4022 and the For the second cover plate 403 , in actual use, the number of cover plates can be set according to the length and size of the air duct cover plate 40 .

The following takes the first cover 402 including the first sub-cover 4021 and the second sub-cover 4022 as an example for illustration:

Optionally, the first sub-cover 4021 is detachably connected to the second sub-cover 4022 .

In this embodiment, the first sub-cover 4021 and the second sub-cover 4022 are detachably connected to facilitate the installation and removal of the first sub-cover 4021 and the second sub-cover 4022 .

Optionally, the second end of the first sub-cover 4021 is provided with one of the second slot 408 and the second protrusion 407 , and the first end of the second sub-cover 4022 is provided with the second slot 408 and the second protrusion 407 . The other one of the two protrusions 407, the second card slot 408 is compatible with the second protrusion 407, when the second protrusion 407 is located in the second card slot 408, the first sub-cover 4021 and the second sub-cover 4022 are connected.

In this embodiment, the first sub-cover 4021 and the second sub-cover 4022 are also connected through protrusions and slots, which also have the advantages of convenient operation and stable connection.

Optionally, as shown in FIGS. A plurality of first protrusions 405 are provided, and the plurality of first protrusions 405 are sequentially arranged at intervals along the length direction of the second end of the second cover plate 403, and a first groove is formed between two adjacent first protrusions 405 4051.

In this embodiment, a plurality of first protrusions 405 are arranged at intervals on the second cover plate 403 , and the number of the first engaging grooves 406 is the same as the number of the first protrusions 405 and corresponds to each other. This can further increase the connection stability between the second cover plate 403 and the first cover plate 402 .

Optionally, the second end of the first sub-cover 4021 is provided with a plurality of second protrusions 407, and the plurality of second protrusions 407 are sequentially arranged at intervals along the length direction of the second end of the first sub-cover 4021, adjacent to each other. A second groove 4071 is formed between the two second protrusions 407 .

In this embodiment, for the connection between the first sub-cover 4021 and the second sub-cover 4022, the first sub-cover 4021 is provided with a plurality of second protrusions 407, and the number of the second locking grooves 408 is the same as that of the second protrusions. The numbers 407 are the same and correspond to each other, so that the connection strength between the first sub-cover 4021 and the second sub-cover 4022 can be increased.

Optionally, along the length direction of the second end of the second cover plate 403, the length of the first groove 4051 is greater than the length of the first locking groove 406, so that the first locking groove 406 can be inserted into the first groove 4051, and then Slide along the first groove 4051 to make the first engaging groove 406 match with the first protrusion 405 .

In this embodiment, the length of the first groove 4051 is greater than the length of the first locking groove 406 , so that the first locking groove 406 can be inserted into the first groove 4051 first. Adjacent first protrusions 405 form first grooves 4051, therefore, after the first locking groove 406 is inserted into the first groove 4051, it can move toward the first protrusion 405, thereby realizing the first locking groove 406 and the first locking groove 406. The fit of the protrusion 405 . Moreover, with such arrangement, when the first cover plate 402 and the second cover plate 403 cannot move along the direction of the first side wall 104 and the second side wall 105, the cooperation between the first card slot 406 and the first protrusion 405 can be realized .

Along the length direction of the second end of the first sub-cover 4021, the length of the second groove 4071 is greater than the length of the second card slot 408, so that the second card slot 408 can be inserted into the second groove 4071, and then along the second The groove 4071 is slid to make the second locking groove 408 cooperate with the second protrusion 407 .

In this embodiment, the functions of the first groove 4051 and the first locking groove 406 are the same, the second locking groove 408 can be inserted into the second groove 4071 first, and then face the second protrusion 407 in the second groove 4071 movement to realize the cooperation between the second slot 408 and the second protrusion 407 .

Optionally, as shown in FIG. 3 , the first slot 406 is located on the side of the second sub-cover 4022 facing the cavity, and the first protrusion 405 is not flush with the outer wall of the second cover 403 , and the first protrusion The riser 405 is lower than the outer wall surface of the second cover 403, so that when the second sub-cover 4022 is connected to the second cover 403, the second end of the second cover 403 is connected to the second end of the second sub-cover 4022. In other words, the second end of the second sub-cover 4022 is pressed above the first protrusion 405 . Optionally, when the second sub-cover 4022 is connected to the second cover 403, the second cover 403 is flush with the upper wall of the second sub-cover 4022; and/or, the second card slot 408 is located on the second The sub-cover 4022 is facing one side of the cavity, and the second protrusion 407 is not flush with the outer wall of the first sub-cover 4021, and the first protrusion 405 is lower than the outer wall of the first sub-cover 4021, so that the second When a sub-cover 4021 is connected to the second sub-cover 4022, the second end of the first sub-cover 4021 abuts against the first end of the second sub-cover 4022, that is, the second sub-cover 4022 The first end is pressed above the second protrusion 407 . Optionally, when the first sub-cover 4021 is connected to the second sub-cover 4022 , the outer walls of the first sub-cover 4021 and the second sub-cover 4022 are flush.

In this embodiment, the first card slot 406 is provided on the side of the second sub-cover 4022 facing the cavity, so that the first protrusion 405 needs to be inserted into the side of the second sub-cover 4022 facing the cavity to realize the connection with the second sub-cover 4022. The cooperation of a card slot 406, specifically, the first protrusion 405 can realize that the second cover 403 and the second sub-cover 4022 can be flush on the outer wall surface, and the first sub-cover 4021 and the second sub-cover There is no gap between the plates 4022 to prevent foreign objects from falling into the cavity. Moreover, the aesthetic appearance of the air duct cover plate 40 can also be improved, and the second cover plate 403 and the second sub-cover plate 4022 are different in height from causing contamination at the joint.

Similarly, the second card slot 408 is provided on the side of the second sub-cover 4022 facing the cavity, so that the second protrusion 407 needs to extend into the side of the second sub-cover 4022 facing the cavity to realize the connection with the second sub-cover 4022. The cooperation between the second locking groove 408 and the second protrusion 407 makes there is no gap at the joint between the first sub-cover 4021 and the second sub-cover 4022 , preventing foreign objects from falling into the cavity. Moreover, the first sub-cover 4021 and the second sub-cover 4022 can be flush. It can also improve the aesthetic appearance of the air duct cover plate 40 , and avoid contamination at the joint caused by the difference in height between the first sub-cover plate 4021 and the second sub-cover plate 4022 .

Optionally, the liner 10 also includes a bottom wall 107 and a third side wall 106, the third side wall 106 is connected between the first side wall 104 and the second side wall 105, the first side wall 104, the second side wall 105 and the third side wall 106 are connected with the bottom wall 107 and extend upwards, the air duct cover plate 40 is suitable for enclosing the first side wall 104, the second side wall 105, the third side wall 106 and the bottom wall 107 A cavity is formed; that is, the cavity is located at one end of the liner so that the cavity does not divide the interior space and facilitates the placement of bulky items in the interior space. Each cover plate includes a top plate 411 and a side plate 412, the top plate 411 is adapted to be connected with the third side wall 106; the side plate 412 is located on the side of the top plate 411 away from the third side wall 106, and extends downward; wherein, a plurality of The top boards 411 corresponding to the cover boards are connected to each other.

In this embodiment, the arrangement of the top plate 411 and the side plate 412 facilitates the formation of a cavity enclosed by the air duct cover plate 40 and the inner tank 10, wherein the connection between the top plates 411 of the multiple cover plates can be understood as: the first card The groove 406 , the first protrusion 405 , the second locking groove 408 and the second protrusion 407 are all provided on the top plate 411 , which is convenient for operation.

It should be noted that: when the second cover 403 includes the third sub-cover and the fourth sub-cover, the connection between the third sub-cover, the fourth sub-cover and the first cover 402 is different from that of the first sub-cover. The connection methods of the cover plate 4021 , the second sub-cover plate 4022 and the second cover plate 403 are the same, and will not be repeated here.

Optionally, the bottom wall 107 is adapted to partially protrude upwards to form a step 50, the bottom of the step 50 is used to place the compressor, the air duct cover plate 40 is adapted to be located above the step 50, and the side plate 412 and the step 50 are away from the third The end faces of the side walls 106 are connected.

In this embodiment, the air duct cover plate 40 is located above the step 50 , and the space between the top plate 411 of the air duct cover plate 40 and the step 50 is used for placing the evaporator 20 . The side plate 412 of the air duct cover plate 40 is connected to the end surface of the step 50 away from the third side wall 106, so that the connection between the air duct cover plate 40 and the step 50 can be realized, and then the air duct cover plate 40 is connected to the inner container 10 .

Optionally, the side plate 412 of the air duct cover 40 is connected to the inner container 10 by screws, so as to achieve a stable connection between the air duct cover 40 and the inner container 10 .

Optionally, the side plate 412 corresponding to the second end of the first sub-cover 4021 is provided with a first crimping edge, and the side plate 412 corresponding to the second end of the second cover plate 403 is provided with a second crimping edge, and the second sub-cover 403 is provided with a second crimping edge. When the cover plate 4022 is connected to the first sub-cover plate 4021 and the second cover plate 403, the two ends of the side plate 412 of the second sub-cover plate 4022 are respectively pressed on the outside of the first and second crimping edges, so that It can be realized that there is no gap at the joint of the first sub-cover 4021 , the second sub-cover 4022 and the second cover 403 , so as to avoid air leakage in the cavity.

Optionally, at least one of the plurality of cover plates is provided with a vent 404 . In this embodiment, the air vent 404 is used to realize the air circulation between the cavity and the outside world, thereby realizing the air circulation of the refrigeration equipment.

Optionally, when the first cover 402 is provided with vents 404, the vents 404 can be provided on the first sub-cover 4021 and/or the second sub-cover 4022, and in practical applications, the vents 404 can be provided according to requirements s position.

Optionally, the air vent 404 can be an air return port or an air supply port, that is to say, the air duct cover of the present application is a return air cover when the air return port is provided. When the air duct cover plate is provided with an air supply port, it is an air outlet cover plate.

Optionally, the number of vents 404 may be one or more. When there are multiple vents 404 , both the top plate 411 and the side plate 412 are provided with vents 404 . As shown in FIG. 1 , both the top plate 411 and the side plate 412 of the second sub-cover 4022 are provided with ventilation openings 404 , which can increase the ventilation area, thereby improving the fluency of the air circulation of the refrigeration equipment.

Optionally, the side plate 412 of the second sub-cover 4022 is suitable for enclosing the third vent 404 with the step 50, and the end surface of the step 50 facing the side wall of the second sub-cover 4022 is recessed inward to form a ventilation channel. The three vents 404 are located at the bottom of the side panel 412 of the second sub-cover 4022 , so that the airflow at the bottom of the inner space can flow into the ventilation channel through the third vent 404 and then flow into the cavity.

Optionally, the first cover 402 is detachably connected to one of the first side wall 104 and the second side wall 105, specifically, the first end of the first sub-cover 4021 is connected to the first side wall 104 and the second side wall 105. One of the two side walls 105 is detachably connected. This facilitates the removal and replacement of the first cover plate 402 . And/or, the first end of the second cover 403 is detachably connected to the other of the first side wall 104 and the second side wall 105 , so as to facilitate the removal and replacement of the second cover 403 .

Optionally, the first cover plate 402 is in sealing connection with one of the first side wall 104 and the second side wall 105, and/or, the second cover plate 403 is connected with one of the first side wall 104 and the second side wall 105 Another sealed connection, which can avoid cavity leakage.

Optionally, part of the air duct cover plate 40 is recessed downwards to avoid the space above. In this way, items such as storage baskets can also be placed on the top of the air duct cover plate 40 to increase the storage space of the refrigeration equipment.

Optionally, the top plate 411 of the air duct cover plate 40 is detachably connected to the third side wall 106 .

Optionally, the first sub-cover 4021 and the third side wall 106 are snap-fit or screw-connected. The second cover plate 403 is connected with the third side wall 106 by a buckle connection or a screw connection. Through the connection between the first sub-cover 4021 and the second cover 403 and the third side wall 106 , the movement of the air duct cover 40 in the up-down and front-back directions is limited. Wherein, the second sub-cover 4022 may or may not be connected to the third side wall 106 .

Optionally, the first side wall 104 and the second side wall 105 are arranged along the width direction of the liner 10, that is to say, the first side wall 104 and the second side wall 105 are the front and rear side walls of the refrigeration device, here, the second side wall One side wall 104 may be a front side wall or a rear side wall, and the second side wall 105 may be a rear side wall or a front side wall, which is not specifically limited in this application. That is to say, the air duct cover plate 40 extends along the width direction of the inner container 10 . In this way, the cavity also extends along the width direction of the liner 10, reducing the size of the air duct cover plate 40, reducing the size of the internal space occupied by the cavity, and facilitating the placement of more items.

Optionally, the refrigeration equipment further includes a foam board and an evaporator 20, the evaporator 20 is located in the cavity, and the foam board is located above the evaporator 20, so as to prevent the cooling capacity of the evaporator 20 from overflowing. The air duct cover plate 40 is located above the foam board, and the air duct cover plate 40 is suitable for being connected with the foam board, so that the foam board can be fixed and the foam board can be prevented from moving.

Optionally, the air duct cover plate 40 is suitable for detachable connection with the foam board.

Optionally, one of the air duct cover 40 and the foam board is provided with a third buckle, the other of the air duct cover 40 and the foam board is provided with a third slot, and the third buckle is located in the third slot When inside, the air duct cover plate 40 is connected with the foam board. The foam board is recessed inward to form a third slot, and the air duct cover plate 40 is provided with a third buckle, the third buckle is located in the third slot, and the third buckle protrudes toward the third slot to form an abutment plate , the upper end surface of the abutting plate can be abutted against the lower end surface of the foam plate, so that the foam plate can be connected with the air duct cover plate 40 as a whole, so that the air duct cover plate 40 and the foam plate can be connected as a whole and then installed in the evaporator On the device 20 and the liner 10. Optionally, there are multiple third buckles, some of the third buckles are located at one end of the air duct cover 40 facing the third side wall 106 , and some of the third buckles are along the air duct cover 40 toward the first side wall One end of 104 is set at intervals. The number of the third card slot is the same as that of the third buckle, and they are in one-to-one correspondence. This can increase the stability of the connection between the air duct cover plate 40 and the foam board, and will not interfere with other connecting components. Optionally, the foam board matches the air channel cover plate 40, and the third buckle can also be provided on the end surface of the side plate 412 facing the foam plate, so that both ends of the air channel cover plate 40 and the foam plate opposite can be connected, Thereby improving the stability of the connection. It should be noted that: the air duct cover plate 40 can also be connected to the foam board in other ways, such as screw, magnetic attraction, sticking, etc., which will not be repeated here.

Optionally, at least one sub-cover is detachably connected to the foam board, specifically, the first sub-cover 4021 is detachably connected to the foam board, and/or the second cover 403 is detachably connected to the foam board.

An embodiment of the present disclosure also provides a refrigeration device, which includes any one of the air duct cover plates 40 for the refrigeration device described above.

The refrigeration equipment provided by the embodiments of the present disclosure includes any one of the above-mentioned air duct cover plates 40 for refrigeration equipment, so it has the beneficial effects of any of the above-mentioned air duct cover plates 40 for refrigeration equipment, here No longer.

Optionally, the refrigeration equipment may be refrigeration equipment such as a freezer, a freezer, and a refrigerator.

As shown in FIG. 5 to FIG. 9 , an embodiment of the present disclosure provides a refrigeration device, such as a refrigerator, especially an air-cooled refrigerator, specifically an air-cooled horizontal refrigerator. The refrigerator includes a box body and a door body, and the door body is movable above the box body. The box body includes a box shell, an inner liner 10 and a foam layer, the liner 10 is located inside the box shell, and the foam layer is located between the box shell and the inner liner 10 . Optionally, the foam layer is an insulating material.

The liner 10 includes a plurality of side walls and a bottom wall 107, the plurality of side walls 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 oppositely arranged, and are located at the front and rear ends of the bottom wall 107 respectively, and both the front side wall and the rear side wall extend upward. The left side wall and the right side wall are opposite to each other, and the left side wall and the right side wall are respectively located at the left and right ends of the bottom wall 107 and extend upward. The bottom wall 107 , the front side wall, the rear side wall, the left side wall and the right side wall together enclose an internal space. The inner space has an opening, the opening is upward, and the door body is movable and covered above the opening.

A plurality of side walls and the bottom wall 107 jointly form an internal space, wherein at least one side wall is provided with an air supply duct 103, the internal space includes a storage chamber 101, the entrance of the storage chamber 101 and the opening of the air supply duct 103 The air supply ports 1031 are connected. The liner 10 is also configured with a cooling cavity 102, the outlet of the cooling cavity 102 is connected with the inlet of the air supply duct 103, the airflow of the storage cavity 101 flows into the cooling cavity 102, and after heat exchange and cooling in the cooling cavity 102, the The air flows into the air supply duct 103 , and then flows back into the storage chamber 101 from the air outlet 1031 of the air supply duct 103 to cool the items in the storage chamber 101 . Here, the storage chamber 101, the refrigeration chamber 102 and the air supply air duct 103 form a circulation air path.

Optionally, the side wall includes a side wall body and an air supply cover 109, the side wall body is recessed in a direction away from the internal space to form an air channel groove, and the air supply cover 109 is covered on the side of the air channel groove facing the internal space, The air supply cover 109 and the side wall body form an air supply air channel 103 , and the air supply cover 109 is provided with an air supply port 1031 .

In this embodiment, the side wall body protrudes toward the foam layer to form the air supply duct 103, so that the air supply duct 103 will not occupy the space of the storage chamber 101, and the air supply duct 103 will not protrude into the inner space , can avoid hiding dirt.

The refrigerator also includes an evaporator 20 and a fan 70 , the evaporator 20 is located in the refrigeration chamber 102 , and the evaporator 20 is used for exchanging heat with the airflow in the refrigeration chamber 102 . Optionally, the fan 70 is located in the circulating air path, and the fan 70 can drive the airflow to flow in the circulating air path, so as to realize the air circulation of the refrigerator.

Optionally, the air duct cover plate 40 is located in the internal space, and divides the internal space into a storage chamber 101 and a refrigeration chamber 102. Here, the refrigeration chamber 102 corresponds to the above chamber, and the vent 404 of the air duct cover plate 40 is a return Tuyere 401.

Optionally, the bottom wall 107 of the liner 10 protrudes upwards to form a step 50, and the bottom of the step 50 is used to place the compressor. Optionally, the air channel cover plate 40 is covered above the step 50 , and the air channel cover plate 40 and the step 50 jointly form the refrigeration cavity 102 .

Optionally, the evaporator 20 is located above the step 50 .

In this embodiment, the evaporator 20 is located above the step 50, so that the evaporator 20 does not occupy too much space in the horizontal direction of the internal space, ensures the storage volume of the storage chamber 101, and makes the refrigeration chamber 102 more compact. Reduce bulkiness inside the freezer.

Optionally, the step 50 is provided with a drain port 501 , and the evaporator 20 is placed obliquely above the step 50 so that the defrosting water of the evaporator 20 is discharged from the drain port 501 .

In this embodiment, the evaporator 20 is prone to frost, so the evaporator 20 needs to be defrosted regularly, and the defrosted water in the evaporator 20 needs to reach a preset angle to be completely discharged. When the evaporator 20 is placed on the step 50 , the evaporator 20 can be tilted at a sufficient angle to drain water. Compared with the evaporator 20 placed below the step 50 , the evaporator 20 in the embodiment of the present disclosure is easier to achieve drainage.

Optionally, the evaporator 20 is arranged obliquely along the width direction of the inner container 10 .

Optionally, the width direction of the heat generation of the fins of the evaporator 20 extends along the height direction, that is, the width direction of the evaporator 20 extends along the height direction of the liner 10, which can reduce the space occupied by the evaporator 20 in the height direction, Then avoid the upper space.

In a specific embodiment, as shown in FIGS. Setting, that is to say, the first side wall 104 and the second side wall 105 are the front and rear side walls, when the first side wall 104 is the front side wall, the second side wall 105 is the rear side wall, and the first side wall 104 is the rear side wall When the side wall is used, the second side wall 105 is the front side wall, and one of the first side wall 104 and the second side wall 105 is provided with an air supply duct 103 and an air supply port 1031, and the air duct cover plate 40 is provided with an air return port 401, The distance between the air return port 401 and one of the first side wall 104 and the second side wall 105 is greater than the distance between the return air port 401 and the first side wall 104 and the second side wall 105, so that the air flow from the inner container 10 The air is blown out from one side and returned from the other side, so that the air flow can flow in a relatively large range in the inner tank 10, thereby realizing the flow of cold air in the entire inner space. The arrows in FIG. 8 indicate the flow direction of the airflow in the inner bag 10 .

Optionally, the first side wall 104 and the second side wall 105 are arranged along the width direction of the liner 10, so that the distance between the first side wall 104 and the second side wall 105 is shorter, compared with the existing air-cooled The freezer emits air along the length direction. The freezer provided by the embodiments of the present disclosure is not blocked by the center beam, and the airflow transmission path is relatively short, which can improve the cooling efficiency of the freezer.

Exemplarily, the first side wall 104 is the rear side wall, the second side wall 105 is the front side wall, the rear side wall is provided with the air supply duct 103 and the blower fan 70, the air duct cover plate 40 is provided with the air return port 401, and the return air port 401 is close to the front side wall, so that the airflow can flow from the back to the front, thereby realizing the airflow of the refrigerator. Alternatively, the front side wall is provided with an air supply duct 103 and a fan 70, and the air return port 401 of the air duct cover plate 40 is close to the rear side wall, so that the air flow can flow from front to back, and the air flow inside the refrigerator can also be realized.

In another specific embodiment, as shown in Figures 5 to 7, the first side wall 104 and the second side wall 105 are both provided with an air supply duct 103 and an air supply port 1031, and the air duct cover plate 40 is provided with an air return port 401, so that the air flow out of the first side wall 104 and the second side wall 105 can return air from the air duct cover plate 40, which can increase the air output volume and air output range inside the liner 10, thereby ensuring the cooling efficiency of the refrigerator. The arrows in FIG. 5 indicate the flow direction of the airflow in the inner bag 10 .

The first side wall 104 and the second side wall 105 are arranged along the width direction of the inner container 10, for example, the first side wall 104 is the front side wall, and the second side wall 105 is the rear side wall, that is to say, the inner container 10 The front and back directions are air outlet, and the air duct cover plate 40 returns air, so that the air circulation of the refrigerator can also be realized.

Optionally, the number of return air outlets 401 is one or more. When there are multiple return air outlets 401, the return air volume of the circulating air path can be ensured, thereby improving the cooling efficiency of the refrigerator.

Optionally, one or more of the top of the refrigeration chamber 102 , the bottom of the refrigeration chamber 102 and the side of the refrigeration chamber 102 are provided with a return air outlet 401 . The air duct cover plate 40 separates the cooling cavity 102 in the internal space, and the air return port 401 is arranged in the cooling cavity 102, so that the return air port 401 is not located on the side wall of the inner tank 10, no matter which position of the internal space the air is discharged, the return air port The positions of 401 and the air outlet 1031 are relatively moderate, which can improve the uniformity of the air flow in the inner space, thereby improving the uniformity of the temperature. One or more of the top wall, bottom and side of the refrigeration chamber 102 is provided with an air return port 401, that is to say, the refrigerator can return air from multiple directions, so that the wind in each area of the internal space can return to the nearest refrigeration unit. The cavity 102 is then recycled, which can avoid the formation of eddy currents and avoid the waste of air volume, thereby increasing the return air volume in the refrigerator, and finally improving the cooling effect.

Optionally, the top of the refrigeration chamber 102 , the bottom of the refrigeration chamber 102 and the side of the refrigeration chamber 102 are all provided with return air outlets 401 . This can improve the temperature uniformity and air supply uniformity of the inner space.

Optionally, the air duct cover plate 40 includes a top plate 411 and a side plate 412 , the top plate 411 is located above the refrigeration chamber 102 , and the top plate 411 is provided with a first air return port 4011 . The side plate 412 is arranged on the side of the top plate 411 facing the storage chamber 101, and the side plate 412 extends downwards. The side plate 412 is provided with a second air return port 4012. The return air port 401 includes a first air return port 4011 and a second air return port 4012. .

In this embodiment, the air duct cover plate 40 is used as the cavity wall of the cooling cavity 102 , and the top plate 411 and the side plate 412 are both provided with return air outlets 401 , which can realize return air from the top and side of the cooling cavity 102 .

Optionally, the step 50 is L-shaped, and the air duct cover plate 40 matches the shape of the step 50, that is to say, the air duct cover plate 40 is an L-shaped cover plate, which can reduce the internal space occupied by the air duct cover plate 40 In the space in the horizontal direction, the return air outlets 401 are respectively arranged on the top plate 411 and the side plate 412 of the L-shaped cover plate.

Optionally, when the bottom of the refrigeration chamber 102 is provided with the air return port 401, there is a gap between the side plate 412 and the wall of the step 50 facing the storage chamber 101, the gap communicates with the refrigeration chamber 102, and the lower end of the gap forms a third loop. The air outlet 4013 and the third air return opening 4013 communicate with the space and the storage chamber 101 , and the air return opening 401 includes the third air return opening 4013 .

In this embodiment, there is a gap between the air duct cover plate 40 and the side of the step 50, and the third air return port 4013 is located at the bottom of the gap, so that the airflow in the storage chamber 101 can flow along the third air return port 4013 and the gap to In the cooling cavity 102, the bottom return air of the cooling cavity 102 is realized. Optionally, when the bottom of the foreign object compartment 1021 is provided with a vent 404, the vent 404 can be a third air return port 4013, and the third air return port 4013 is also convenient for the foreign matter in the foreign matter compartment 1021 to be discharged.

Optionally, the side plate 412 of the air duct cover plate 40 abuts against the side wall of the step 50 . Specifically, the side plate 412 is partly attached to or close to the step 50 .

Optionally, the side wall of the step 50 is recessed toward the direction away from the storage cavity 101 to form a groove, and the side plate 412 is covered on the groove to form a gap. In this embodiment, the wall surface of the step 50 facing the storage chamber 101 is recessed inward, which can avoid excessive occupation of the volume of the storage chamber 101 . Moreover, the air duct cover plate 40 does not need to protrude toward the storage cavity 101 , which can improve the overall aesthetics of the interior space. Optionally, the grooves are vertical grooves, so as to facilitate air flow from bottom to top. Moreover, the grooves make the channel circulation area of the third air return port 4013 larger, which can reduce the resistance of the air flow from the return air port 401 to the evaporator 20, avoid the collision of the air flow with the side wall of the step 50, improve the smoothness of circulation, and reduce the loss of air volume.

In this application, through the setting of three return air outlets 401, the return air of the refrigerator is made smoother, and the process of air flow returning to the evaporator 20 from the return air outlets 401 has no resistance, and the return air area is larger, which can reduce the loss of air volume and improve the efficiency of air flow. fluency.

Optionally, the refrigerating chamber 102 further defines a connected evaporator compartment and a foreign matter compartment 1021 , the evaporator 20 is located in the evaporator compartment, and the air return port 401 is located in the foreign matter compartment 1021 . The air return port 401 is set in the foreign matter compartment 1021, so that after the storage chamber 101 or external impurities fall into the refrigeration chamber 102 from the return air port 401, they will fall into the foreign matter compartment 1021, so that foreign matters can be prevented from falling into the foreign matter compartment through the return air port 401. In the evaporator cabin, foreign matters can be prevented from falling into the evaporator 20 and affecting the operation of the evaporator 20, so as to ensure the cooling operation of the refrigerator.

It should be noted that, in some embodiments, the air outlet circuit of the refrigerator is different from that of the present application. For example, the cooling chamber 102 is provided with vents such as air outlets. The openings are collectively referred to as ventilation openings 404, and the ventilation openings 404 may be air return openings 401, air outlets, or ventilation holes. In these embodiments, the refrigeration chamber 102 can also define the foreign matter compartment 1021 and the evaporator compartment, and the vent 404 is set in the foreign matter compartment 1021, which can also achieve the technical effect of preventing foreign matters from falling into the evaporator 20, which all belong to the scope of the present application. Choose an example.

Optionally, the evaporator compartment and the foreign matter compartment 1021 are sequentially arranged along the direction from the first side wall 104 to the second side wall 105 . That is to say, the evaporator compartment and the foreign matter compartment 1021 are arranged along the width direction of the liner 10 . In this embodiment, when the airflow flows in the front-back direction, the evaporator compartment and the foreign matter compartment 1021 are arranged along the width direction, which can efficiently utilize the space in the cooling chamber 102 , not only can place the evaporator 20 but also prevent foreign matter from falling.

Optionally, along the direction from the refrigeration chamber 102 to the storage chamber 101 , the bottom wall 107 of the foreign matter compartment 1021 is inclined downwards, so as to facilitate the flow of foreign matter in the foreign matter compartment 1021 into the storage chamber 101 . In this embodiment, the foreign matter compartment 1021 is arranged at an incline, so that the foreign matter in the foreign matter compartment 1021 can be smoothly discharged into the storage chamber 101, thereby facilitating the processing of the foreign matter.

Optionally, a drain opening 501 is provided on the top wall of the step 50 , and the evaporator 20 is inclined towards the drain opening 501 , so as to realize drainage of the evaporator 20 .

Optionally, the number of evaporators 20 can be one or more. When the number of evaporators 20 is multiple, the plurality of evaporators 20 includes a first evaporator and a second evaporator, and the first evaporator and the first evaporator The device is arranged in the cooling cavity 102 along the width direction of the inner container 10 .

Optionally, when the refrigerator includes the first evaporator and the second evaporator, the air return port 401 is located between the first evaporator and the second evaporator, and the foreign matter compartment 1021 corresponds to the return air port 401, which facilitates the return air port 401 to flow into The gas flow can flow to the first evaporator and the second evaporator respectively.

Optionally, the number of fans 70 is one or more, and when one of the first side wall 104 and the second side wall 105 is provided with an air supply duct 103, the fan 70 and the air supply duct 103 are located on the same side wall In this way, the airflow flowing out of the refrigeration chamber 102 can flow directly to the air supply duct 103 after passing through the fan 70 without passing through corners, thereby reducing the loss of airflow.

Optionally, the drain port 501 is located between the first evaporator and the second evaporator, and both the first evaporator and the second evaporator are inclined towards the drain port 501, so as to facilitate the defrosting of the first evaporator and the second evaporator water discharge.

The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. 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 (10)

1. An air duct cover plate for a refrigeration device, the refrigeration device comprising an inner container, the inner container comprising a first side wall and a second side wall which are oppositely arranged, the air duct cover plate being adapted to enclose with the inner container to form a cavity, the air duct cover plate comprising a plurality of cover plates, a plurality of cover plates comprising:

a first cover plate adapted to be connected to one of the first sidewall and the second sidewall;

a second cover plate adapted to be connected to the other of the first sidewall and the second sidewall;

the first cover plate is provided with one of a first clamping groove and a first bulge, the second cover plate is provided with the other of the first clamping groove and the first bulge, the first clamping groove is matched with the first bulge, and when the first clamping groove is matched with the first bulge, the first cover plate is connected with the second cover plate.

2. The duct cover for a refrigeration appliance of claim 1, wherein the first cover comprises:

a first sub-cover plate, the first end of the first sub-cover plate being adapted to be connected to one of the first side wall and the second side wall;

the first end of the second sub-cover plate is connected with the second end of the first sub-cover plate, the second end of the second sub-cover plate is provided with one of the first clamping groove and the first protrusion, and the second sub-cover plate is connected with the second cover plate.

3. A duct cover for a refrigeration unit as recited in claim 2, wherein,

the first sub-cover plate is detachably connected with the second sub-cover plate.

4. A duct cover for a refrigeration unit as recited in claim 3, wherein,

the second end of the first sub-cover plate is provided with one of a second clamping groove and a second bulge, the first end of the second sub-cover plate is provided with the other of the second clamping groove and the second bulge, the second clamping groove is matched with the second bulge, and when the second bulge is positioned in the second clamping groove, the first sub-cover plate is connected with the second sub-cover plate.

5. A duct cover for a refrigeration unit as recited in claim 4, wherein,

the first end of the second cover plate is connected with the other one of the first side wall and the second side wall, a plurality of first bulges are arranged at the second end of the second cover plate, the first bulges are sequentially arranged at intervals along the length direction of the second end of the second cover plate, and a first groove is formed between two adjacent first bulges;

the second end of first sub-apron is equipped with a plurality of second archs, and is a plurality of the second is protruding to be followed the length direction of the second end of first sub-apron sets gradually the interval, and adjacent two form the second recess between the second arch.

6. A duct cover for a refrigeration unit as recited in claim 5, wherein,

the second end of the second sub-cover plate is provided with a first clamping groove, the length of the first groove is longer than that of the first clamping groove along the length direction of the second end of the second sub-cover plate, so that the first clamping groove can be inserted into the first groove, and then the first clamping groove slides along the first groove, so that the first clamping groove is matched with the first protrusion;

the first end of the second sub-cover plate is provided with a second clamping groove, the length of the second clamping groove is larger than that of the second clamping groove along the length direction of the second end of the first sub-cover plate, so that the second clamping groove can be inserted into the second clamping groove and then slide along the second clamping groove, and the second clamping groove is matched with the second protrusion.

7. A duct cover for a refrigeration unit as recited in claim 4, wherein,

the first clamping groove is positioned at one side of the second sub-cover plate facing the cavity, so that when the second sub-cover plate is connected with the second cover plate, the second end of the second cover plate is abutted with the second end of the second sub-cover plate; and/or the number of the groups of groups,

The second clamping groove is positioned on one side of the second sub-cover plate, which faces the cavity, so that when the first sub-cover plate is connected with the second sub-cover plate, the second end of the first sub-cover plate is abutted with the first end of the second sub-cover plate.

8. The air duct cover for a refrigeration unit as recited in any one of claims 1 to 7 wherein said liner further includes a bottom wall and a third side wall connected between said first side wall and said second side wall, said first side wall, said second side wall and said third side wall each being connected to said bottom wall and extending upwardly, said air duct cover being adapted to enclose said cavity with said first side wall, said second side wall, said third side wall and said bottom wall;

each of the cover plates includes:

a top plate adapted to be connected to the third sidewall;

the side plate is connected to one side of the top plate, which is away from the third side wall, and extends downwards;

the top plates corresponding to the cover plates are connected.

9. The duct cover for a refrigeration appliance of claim 8, wherein,

the bottom wall part is upwards raised to form a step, the lower part of the step is used for placing a compressor, the air duct cover plate is suitable for being positioned above the step, and the side plate is connected with the end face of the step, which is away from the third side wall; and/or the number of the groups of groups,

At least one of the cover plates is provided with a vent, and the vent is communicated with the cavity.

10. A refrigeration appliance, comprising:

air duct cover plate for refrigeration equipment as claimed in any one of claims 1 to 9

The inner container comprises a plurality of side walls, wherein the side walls enclose an inner space, and at least one side wall defines an air supply channel with an air supply opening;

the air duct cover plate is positioned in the inner space, the inner space is divided into a storage cavity and a refrigerating cavity by the air duct cover plate, the storage cavity, the refrigerating cavity and the air supply duct form a circulating air path, and the refrigerating cavity comprises a cavity body;

the fan is positioned in the circulating air path, can drive the air flow in the refrigerating cavity to flow into the air supply duct, then flows into the storage cavity through the air supply opening, and flows back into the refrigerating cavity through the ventilation opening;

and the evaporator is positioned in the refrigerating cavity.

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