CN112444051A

CN112444051A - Refrigerating device

Info

Publication number: CN112444051A
Application number: CN201910812749.9A
Authority: CN
Inventors: 刘浩泉; 王磊; 孟亮; 费斌
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2021-03-05
Anticipated expiration: 2039-08-30
Also published as: CN112444051B

Abstract

A refrigerating device comprises an inner container and a drawer accommodated in the inner container, wherein the rear wall of the inner container is provided with an air outlet, and the side wall of the inner container is provided with an air return opening; a gap is formed between the periphery of the drawer and the inner container, the drawer comprises a drawer body and a cover body which are matched with each other, the cover body is provided with a butt joint port for butt joint with the air outlet and an air guide rib which protrudes out of the upper surface of the cover body, and the air guide rib is arranged to guide cold air entering from the butt joint port to the gap around the drawer along different directions; through set up the air guide muscle on the drawer lid, can guide from air outlet exhaust air conditioning, adjust the cold volume around the drawer for cold volume is even around the drawer, and then realizes the inside homogeneity of eating the material temperature of drawer, improves the fresh-keeping effect of eating the material, obtains good user experience.

Description

Refrigerating device

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to a refrigerating device.

Background

In order to achieve an extremely good fresh-keeping effect, different food materials need to be specially and optimally stored at the most, and the control of the uniformity of the indoor temperature among refrigerators is important for the fresh-keeping of the food materials.

In traditional refrigerator, the even compartment of relative temperature can realize through normal top air-out, bottom return air design basically, but to the refrigerator of rear portion air-out, lateral part return air, the difficult even compartment that covers of air conditioning realizes that the homogeneity degree of difficulty of indoor temperature is great.

In view of the above, there is a need for an improved refrigeration device to solve the above problems.

Disclosure of Invention

The invention aims to provide a refrigerating device which can make the temperature inside a drawer uniform.

To achieve the above-described improved object, the present invention provides a refrigerating apparatus comprising: the inner container is provided with an air outlet at the rear wall and an air return opening at the side wall; the drawer is arranged in the inner container, a gap is formed between the periphery of the drawer and the inner container, the drawer comprises a drawer body and a cover body which are matched with each other, the cover body is provided with a butt joint port for butt joint with the air outlet and an air guide rib which protrudes out of the upper surface of the cover body, and the air guide rib is arranged to guide cold air entering from the butt joint port to the gap around the drawer along different directions.

Preferably, the air outlet is arranged on one transverse side of the rear wall of the inner container, and the air return opening is arranged on the front side of the side wall of the inner container on the other transverse side.

Preferably, the wind-guiding muscle is including setting up the edge of lid edge is in with the setting the inboard wind-guiding strip of edge, the edge with the wind-guiding strip all is close to in the setting of inner bag roof to with apron upper surface and inner bag roof between form the wind-guiding space, be formed with the intercommunication on the edge the wind-guiding mouth in wind-guiding space and clearance.

Preferably, the wind guide strip includes from the butt joint mouth extends to forward the first wind guide strip of lid front side, the edge is including back edge and the side edge that forms respectively in lid back edge and side edge, the wind-guiding space is including forming in first wind guide strip with the lid is kept away from the first wind-guiding chamber between the side edge of return air inlet, the wind-guiding mouth including set up in on the side edge and communicate first wind-guiding chamber with the first wind-guiding mouth in clearance.

Preferably, the first air guiding opening is arranged close to the front side of the drawer.

Preferably, the edge further includes a front edge formed on the front edge of the cover, and the first wind guiding strip does not extend to the front edge, but extends laterally towards the side edge away from the air return opening on the rear side of the front edge.

Preferably, the air guide strip further comprises a second air guide strip, the second air guide strip extends from the butt joint port towards one side of the air return port in an inclined mode, and the air guide space further comprises a second air guide cavity formed among the second air guide strip, the rear edge and the side edge of the adjacent air return port.

Preferably, one end of the second air guide strip, which is far away from the butt joint port, extends to the side edge and specifically extends to the middle position of the side edge of the adjacent air return port, and at least one vent hole communicating the second air guide cavity with the outside is arranged on the second air guide strip.

Preferably, the air guiding space further comprises a third air guiding cavity formed between the first air guiding strip and the second air guiding strip, the edge further comprises a front edge formed on the front edge of the cover body, and the air guiding opening further comprises a third air guiding opening arranged on the front edge and communicated with the third air guiding cavity and the gap.

Preferably, the extending starting ends of the first air guide strip and the second air guide strip at the butt joint position are overlapped, and at least one ventilation opening communicating the second air guide cavity with the third air guide cavity is formed in the second air guide strip.

Preferably, the first air guide strip is also provided with at least one ventilation opening communicated with the first air guide cavity and the third air guide cavity.

Preferably, the air guide strip further comprises a third air guide strip arranged in the third air guide cavity, the third air guide strip extends forwards from the second air guide strip, the third air guide strip divides the second air guide strip into two parts, and at least one vent is arranged on each of the two parts.

Preferably, the ventilation opening comprises a first ventilation opening and a second ventilation opening which are arranged on the same side of the third air guide strip, the first ventilation opening is arranged close to the butt joint opening compared with the second ventilation opening, and the opening size of the first ventilation opening is smaller than that of the second ventilation opening.

Preferably, the cover body is a heat preservation cover plate and is detachably and fixedly arranged on the inner container.

Preferably, still be provided with the module of moisturizing on the lid, the module of moisturizing set up in the front side intermediate position department of lid.

The invention has the beneficial effects that: through set up the air guide muscle on the drawer lid, can guide from air outlet exhaust air conditioning, adjust the cold volume around the drawer for cold volume is even around the drawer, and then realizes the inside homogeneity of eating the material temperature of drawer, improves the fresh-keeping effect of eating the material, obtains good user experience.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic view of a refrigeration unit according to the present invention;

fig. 2 is a schematic structural view of an inner container in the refrigerating apparatus shown in fig. 1;

FIG. 3 is a schematic view of a drawer cover structure of the refrigeration apparatus according to the present invention;

FIG. 4 is a schematic view of a drawer structure of the refrigerating apparatus according to the present invention;

FIG. 5 is a schematic view of the structure of the upper cover plate of the drawer cover shown in FIG. 3;

FIG. 6 is a schematic structural diagram of a moisture preserving module in the refrigerating apparatus according to the present invention;

FIG. 7 is a schematic diagram of a temperature field simulation of a drawer cover in the refrigeration apparatus according to the present invention;

FIG. 8 is a schematic diagram of a drawer temperature field simulation in the refrigeration apparatus of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a refrigerating device which is generally used for a refrigerator and a freezer which are cooled by adopting an air cooling mode.

Referring to fig. 1 to 3, the refrigerating apparatus of the present invention includes an inner container 1, a drawer 2 provided in the inner container 1, and a refrigerating system (not shown) for supplying cold air into the inner container 1.

The inner container 1 is internally formed into a compartment 10 for accommodating the drawer 2, and an air opening for communicating the compartment 10 with the refrigerating system is arranged on the wall of the inner container 1. Specifically, in the present invention, the air outlet includes an air outlet 4 disposed on the rear wall of the inner container 1 and an air return opening 5 disposed on the side wall of the inner container 1.

Preferably, the air outlet 4 is arranged on one lateral side of the rear wall of the inner container 1, and the air return opening 5 is arranged on the front side of the side wall of the inner container 1 which is transversely arranged on the other lateral side. For example, in the present embodiment, the air outlet 4 is disposed at the right side of the rear wall of the liner, and the air return opening 5 is disposed at the front end of the left side wall of the liner. The diagonal design of the air outlet 4 and the air return opening 5 can make the air path of the cold air in the gap 3 longer, thereby effectively cooling the food in the drawer 2.

The drawer 2 can be arranged in the inner container 1 in a drawing mode. In the present embodiment, the drawer 2 and the inner container 1 are slidably engaged with each other by a slide rail. When the drawer is accommodated in the compartment 10 inside the inner container 1, a gap 3 for flowing cold air is formed between the periphery of the drawer 2 and the inner container 1.

Wherein, the drawer 2 comprises a drawer body 21 and a cover 22 which are matched with each other. The cover 22 is formed with a butt joint port 6 for butt joint with the air outlet 4 and a wind guiding rib 7 protruding out of the upper surface of the cover 22, and the wind guiding rib 7 is set to guide the cold air entering from the butt joint port 6 to the gap 3 around the drawer 2 along different directions. For the refrigerating device at the opposite side of the air outlet 4 and the air return opening 5, the temperature of the drawer 2 is difficult to realize, the air guide ribs 7 are designed on the drawer cover body 22, so that cold air entering the interface 6 can be guided to the gap 3 along different directions, the cold quantity around the drawer can be adjusted, the cold quantity around the drawer is uniform, and the temperature uniformity of food materials in the drawer is further realized.

Further, the drawer body 21 includes front and rear walls, two side walls, and a bottom wall, which correspond to each other. The drawer body 21 and the lid 22 form a closed space so that the cool air can flow only in the gap 3 outside the drawer 2.

Bosses 221 are arranged on the left side and the right side of the cover body 22, fixing strips 110 are mounted on the side walls of the inner container 1, strip-shaped grooves 222 are formed in the fixing strips 110, and the bosses 221 can be mounted in the strip-shaped grooves 222, so that the cover body 22 is fixed on the inner container 1 through the cooperation of the bosses 221 and the strip-shaped grooves 222. When the drawer body 21 is pulled out, the cover 22 is fixed on the inner container 1 and is not pulled out along with the drawer body 21, and when the cover 22 needs to be detached for cleaning, the cover 22 can be pulled out forwards along the strip-shaped groove 222. In order to prevent the temperature of the upper side of the drawer 2 from being too low due to the flowing of cold air on the cover 22 of the drawer 2, the cover 22 is a heat preservation cover plate in the invention.

Specifically, the cover body 22 has an upper cover plate, a lower cover plate and an insulating layer filled between the upper cover plate and the lower cover plate.

Referring to fig. 4, the air guiding rib 7 of the present invention is disposed on the upper side of the upper cover plate, and includes an edge 71 disposed at the edge of the cover 22 and an air guiding strip 72 disposed inside the edge 71. The edge 71 and the wind-guiding strip 72 are both arranged close to the top wall of the inner container 1, preferably in abutment with the top wall. An air guide space 73 is formed between the edge 71, the air guide strip 72, the upper surface of the cover body 22 and the top wall of the inner container 1, and an air guide opening 74 communicated with the air guide space 73 and the gap 3 is formed on the edge 71.

The circulation process of the cold air in the inner container 1 is as follows: the cold air is discharged from the air outlet 4, enters the air guiding space 73 through the butt joint port 6, the cold air entering the air guiding space 73 is guided to the air guiding port 74 through the air guiding strip 72, and the cold air discharged from the air guiding port 74 enters the gap 3 and then returns to the air return port 5 from different directions. The design of the air guiding ribs 7 and the air guiding openings 74 enables the cold quantity discharged to the periphery of the drawer 2 to be effectively adjusted according to the distance between the air outlet 4 and the air return opening 5 and the cold quantity distribution condition easily gathered around the drawer 2, so that the uniform distribution of the cold quantity around the drawer is realized, and the temperature consistency of all positions of the drawer is further ensured.

The edges 71 include a rear edge 711 formed at the rear edge of the cover 22, a front edge 713 formed at the front edge of the cover 22, opposite side edges 712 of the air return opening 5 formed at the side edges of the cover 22, and adjacent side edges 714 of the air return opening 5.

In order to achieve a better wind guiding effect, the wind guiding strip 72 includes a plurality of wind guiding strips that can guide wind in different directions. Referring to fig. 5, the wind-guiding strip 72 includes a first wind-guiding strip 721 extending forward from the interface 6 to the front side of the cover 22. The air guiding space 73 includes a first air guiding cavity 731 formed between the first air guiding strip 721 and the side edge 712 of the cover 22 away from the air return opening 5. The air guiding opening 74 includes a first air guiding opening 741 disposed on the side edge 712 and communicating the first air guiding cavity 731 with the gap 3.

Since the temperature of the space in the gap 3 is lower near the air outlet 4 and the air return opening 5 and higher far from the air outlet 4 and the air return opening 5, the first air guiding cavity 731 and the first air guiding opening 741 disposed at the side edge 712 far from the air return opening 5 can guide the cool air to the area with higher temperature, thereby reducing the temperature difference between the area and the area with lower temperature.

In the embodiment, the first air guiding opening 731 is disposed near the front side of the drawer 2, and the arrangement manner can make the distance from the first air guiding opening 731 to the air outlet 4 and the air return opening 5 far, so that the temperature of the higher temperature position in the space of the gap 3 can be reduced by guiding the cold air out from the first air guiding opening 731.

Preferably, in this embodiment, the first wind-guiding strip 721 does not extend to the front edge 713, but rather extends laterally behind the front edge 713 toward the side edge 712 away from the air return opening 5. The end of the first air guiding strip 721 coincides with one end of the first air guiding opening 741 on the side edge 712, that is, the first air guiding opening 741 is disposed adjacent to the extending end of the first air guiding strip 721. The first air guiding strip 721 is extended toward the first air guiding opening 741 in a curved guiding manner at a position close to the first air guiding opening 741, so that the cool air exhausted from the air outlet 4 is smoothly guided to the first air guiding opening 741.

As a preferred embodiment of the present invention, the wind guiding strip 72 further includes a second wind guiding strip 722, and the second wind guiding strip 722 extends obliquely from the butt joint port 6 toward the return air inlet 5, so that the wind guiding space 73 further includes a second wind guiding cavity 732 formed among the second wind guiding strip 722, the rear edge 711, and the side edge 714. Part of the cold air is blown into the second air guide cavity 732 formed by the second air guide strips 722 from the butt joint port 6.

Preferably, one end of the second wind guiding strip 722, which is far away from the butt joint 6, extends to the side edge 714, and specifically extends to the middle position of the side edge 714 of the adjacent air return opening 5, and at least one ventilation opening communicating the second wind guiding cavity 732 with the outside is arranged on the second wind guiding strip 722.

In this embodiment, the starting end of the second wind guiding strip 722 is disposed at the butt joint 6, the tail end of the second wind guiding strip 722 is disposed in the middle of the side edge 714, the second wind guiding strip 722 is in a curve shape extending obliquely forward from the butt joint 6, the second wind guiding strip 722 includes a first arc section 11, a second arc section 12, and a third arc section 13, the first arc section 11 extends in a curved manner with a gradually decreasing slope, the first arc section 11 is provided with a vent 101, the second arc section 12 extends in a curved manner with a gradually increasing slope, the second arc section 12 is provided with a vent 102, the third arc section 13 continues to extend to the side edge 714 in a curved manner with a gradually decreasing slope, the third arc section 13 is provided with vents 103 and 104, the vent 101 and 104 are combined with the design of the position 722 of the second wind guiding strip, so that the wind in the second wind guiding cavity 732 can be guided out of the second wind guiding cavity 732 from different positions, and then the air is guided into the gap 3 through an outside air guide opening of the second air guide cavity 732, so that the air output can be reasonably adjusted according to the refrigeration condition of the drawer 2.

In this embodiment, the air guiding space 73 further includes a third air guiding cavity 733 formed between the first air guiding strip 721 and the second air guiding strip 722, and the air guiding opening 74 further includes a third air guiding opening 743 disposed on the front edge 713 and communicating the third air guiding cavity 733 with the gap 3. The cold air in the second air guiding cavity 732 can be guided into the third air guiding cavity 733 through the ventilation openings 101-104 of the second air guiding bar 722, and then guided into the gap 3 through the third air guiding opening 743. The third air guide opening 743 is arranged on the front edge 713, so that the front end of the drawer 2 is guaranteed to be wrapped by cold air, and the temperature of the front end of the drawer 2 is reduced.

Preferably, referring to fig. 5, the extending start ends of the first wind-guiding strip 721 and the second wind-guiding strip 722 at the butt joint 6 are overlapped, and the ventilation openings 101-104 on the second wind-guiding strip 722 communicate the second wind-guiding cavity 732 and the third wind-guiding cavity 733. In this embodiment, the second wind guiding strip 722 is provided with 4 ventilation openings 101-. As other embodiments of the present invention, the number and position of the vents may also be adjusted according to the cooling condition of the drawer 2.

More specifically, the overlapping start ends of the first air guide strips 721 and the second air guide strips 722 are provided at the abutting ports 6 so as to be offset to the second air guide cavities 732. Because the first air guide port 741 is far away from the air outlet 4 and the air return port 5, the air quantity blown into the first air guide cavity 731 is large due to the arrangement of the position of the interface 6, and therefore the area with high external temperature of the drawer 2 can be cooled rapidly.

Furthermore, the first wind-guiding strip 721 is also provided with a vent 105 communicating the first wind-guiding cavity 731 and the third wind-guiding cavity 733, the first wind-guiding strip 721 is bent towards the side edge 712 to divide the first wind-guiding strip 721 into two parts, the vent 105 is arranged on the connecting part of the bent part of the first wind-guiding strip 721 and the side edge 712, the vent 105 is designed to be close to the third wind-guiding opening 743, part of the cold air in the first wind-guiding cavity 731 can be guided into the third wind-guiding opening 743 through the vent 105, so that part of the cold air is directly discharged from the front side of the drawer 2 into the third wind-guiding cavity 733.

Preferably, the wind guide strip 72 further includes a third wind guide strip 723 disposed in the third wind guide cavity 733, the third wind guide strip 723 extends forward from the second wind guide strip 722, and the third wind guide strip 723 divides the second wind guide strip 722 into two parts. In this embodiment, the starting end of the third air guiding strip 723 is disposed on the second air guiding strip 722, the third air guiding strip 723 separates the

ventilation openings

101, 102, 103 and 104, and the third air guiding strip 723 restricts the flow of the cold air blown out from the ventilation openings to a small area, thereby improving the air guiding efficiency of the air guiding rib 7.

In this embodiment, the third air guide strip 723 is provided with

vents

101 and 102 on one side and vents 103 and 104 on the other side, and the size of the opening of the vent 101 is smaller than that of the vent 102, and similarly, the size of the opening of the vent 103 is smaller than that of the vent 104. The size of the vent opening is determined according to the air volume required by different positions, in order to keep the temperature on the cover body 22 uniform, the air volume required by the area far away from the interface 6 is large, and the opening design of the area near the interface 6 is small, even the opening is not required, so that the purpose of cooling can be achieved. Vent 101 is closer to interface 6 than vent 102, so vent 102 has a larger opening design, and similarly vent 104 has a larger opening design.

In order to verify the air guiding effect of the air guiding ribs 7, the temperature field in the drawer 2 is subjected to simulation as shown in fig. 7 and 8, and the test shows that the instantaneous temperature difference in the drawer is within 0.4 ℃, which is basically consistent with the simulation result of the temperature field in the drawer at 0.35 ℃, so that the design of the air guiding ribs 7 in the invention can ensure that the temperature inside the drawer 2 is kept better in uniformity.

Preferably, a moisturizing module is disposed at the front middle portion of the cover body 22. In this embodiment, as shown in fig. 6, the cover 22 is a U-shaped heat-insulating cover, and the front end forms a mounting groove. The moisturizing module 8 is disposed at the mounting groove of the front side of the cover 22, the moisturizing module 8 includes a mounting portion 81 and a moisturizing portion 82, the front side of the moisturizing module 8 is horizontal to the front wall of the cover 22, and the thickness is similar to that of the cover 22. The front side edge of the moisture retention module 8 is the third air guide opening 743, and the end of the third air guide strip 723 is arranged on the moisture retention module 8 and close to the middle of the moisture retention module 8. The inner wall is equipped with mounting bar 223 about lid 22 mounting groove protrudingly, and the module 8 installation part 81 left and right sides of moisturizing is provided with spout 811, through mounting bar 223 and spout 811's cooperation for module 8 of moisturizing can be from preceding back slidable mounting to the mounting groove in, can follow lid 22 when module 8 of moisturizing needs to wash or change and slide and take out. Because lid 22 front side intermediate position department easily produces the condensation for the position that drawer 2 temperature is minimum, humidity module 8 in this embodiment can in time effectively be adjusted the humidity in drawer 2 in setting up of this department, avoids the fresh-keeping effect of the too high influence of humidity of 2 inside edible materials of drawer, conveniently installs the module of moisturizing again.

In summary, in the present invention, the air guiding rib 7 is arranged on the drawer cover 22 of the refrigeration device to adjust the cooling capacity around the drawer 2, so that the cooling capacity around the drawer 2 is uniform, and the uniformity of the temperature of the food material inside the drawer 2 is further realized. The refrigerator of air-out to the rear portion, lateral part return air has effectively been solved, and air conditioning is difficult to evenly cover the compartment and makes the interior temperature of compartment hardly reach this technical problem even, has improved the fresh-keeping effect of eating the material, obtains good user experience.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. A refrigeration device, characterized in that it comprises:

the inner container is provided with an air outlet at the rear wall and an air return opening at the side wall;

the drawer is arranged in the inner container, a gap is formed between the periphery of the drawer and the inner container, the drawer comprises a drawer body and a cover body which are matched with each other, the cover body is provided with a butt joint port for butt joint with the air outlet and an air guide rib which protrudes out of the upper surface of the cover body, and the air guide rib is arranged to guide cold air entering from the butt joint port to the gap around the drawer along different directions.

2. The refrigerating device as claimed in claim 1, wherein the air outlet is disposed at one lateral side of the rear wall of the inner container, and the air return opening is disposed at the front side of the side wall of the inner container at the other lateral side.

3. The refrigerating device as claimed in claim 2, wherein the air guiding rib comprises an edge arranged at the edge of the cover body and an air guiding strip arranged at the inner side of the edge, the edge and the air guiding strip are arranged close to the top wall of the inner container and form an air guiding space with the upper surface of the cover body and the top wall of the inner container, and an air guiding opening communicating the air guiding space with the gap is formed on the edge.

4. The refrigeration device as claimed in claim 3, wherein the air guide strip includes a first air guide strip extending forward from the interface to the front side of the cover, the edge includes a rear edge and a side edge respectively formed at the rear edge and the side edge of the cover, the air guide space includes a first air guide cavity formed between the first air guide strip and the side edge of the cover far away from the air return opening, and the air guide opening includes a first air guide opening disposed on the side edge and communicating the first air guide cavity with the gap.

5. A cold appliance according to claim 4, wherein the first air outlet is located adjacent the front side of the drawer.

6. The refrigeration unit of claim 4, wherein the edge further comprises a front edge formed on a front edge of the cover, and the first wind-guiding strip does not extend to the front edge but extends laterally behind the front edge toward the side edge away from the return air opening.

7. The cooling device as claimed in claim 4, wherein the air guiding strip further comprises a second air guiding strip extending obliquely from the interface toward one side of the air return opening, and the air guiding space further comprises a second air guiding cavity formed between the second air guiding strip, the rear edge and the side edge of the adjacent air return opening.

8. The refrigerating device as recited in claim 7, wherein an end of the second wind guiding strip away from the butt joint port extends to the side edge, and particularly extends to a middle position of the side edge of the adjacent return air port, and at least one ventilation port communicating the second wind guiding cavity with the outside is arranged on the second wind guiding strip.

9. The refrigeration device as recited in claim 7 wherein the air guiding space further comprises a third air guiding cavity formed between the first air guiding strip and the second air guiding strip, the edge further comprises a front edge formed on the front edge of the cover, and the air guiding opening further comprises a third air guiding opening disposed on the front edge and communicating the third air guiding cavity with the gap.

10. A refrigerating device as recited in claim 9 wherein the first air guiding strip and the second air guiding strip are overlapped at the extending starting ends of the butt joint, and at least one ventilation opening communicating the second air guiding cavity and the third air guiding cavity is arranged on the second air guiding strip.

11. A cooling device as claimed in claim 10, wherein the first air guiding strip is also provided with at least one ventilation opening communicating the first air guiding cavity and the third air guiding cavity.

12. The refrigeration device as recited in claim 10 wherein the air guide strip further comprises a third air guide strip disposed in the third air guide cavity, the third air guide strip extending forward from the second air guide strip, the third air guide strip dividing the second air guide strip into two portions, each of the two portions having at least one ventilation opening disposed therein.

13. A refrigeration unit as recited in claim 12 wherein: the ventilation opening comprises a first ventilation opening and a second ventilation opening which are arranged on the same side of the third air guide strip, the first ventilation opening is arranged close to the butt joint opening compared with the second ventilation opening, and the opening size of the first ventilation opening is smaller than that of the second ventilation opening.

14. A refrigerator as claimed in claim 1, wherein the cover is a heat-insulating cover plate and is detachably and fixedly disposed on the inner container.

15. A refrigerating device as recited in any one of claims 1-14 wherein a moisturizing module is further provided on the cover, the moisturizing module being provided at a position intermediate the front side of the cover.