CN217031762U - Air duct cover plate for refrigerator and refrigerator - Google Patents

Abstract

The utility model belongs to the technical field of refrigeration equipment, and particularly provides an air duct cover plate for a refrigerator and the refrigerator. The utility model aims to solve the problem that the food material is easy to lose excessive moisture when the food material is frozen/refrigerated in the existing refrigerator, so that the food material fresh-keeping effect is poor. The refrigerator of the utility model comprises an air supply duct and a storage chamber. The air duct cover plate is arranged between the air supply air duct and the storage chamber and comprises a cover plate body and an air door device. The cover plate body is provided with a first layer space and a second layer space, the first layer space comprises a side blowing channel, the second layer space comprises a direct blowing channel, one of the first layer space and the second layer space further comprises an air inlet cavity, and the side blowing channel and the direct blowing channel are respectively communicated with the air inlet cavity. The cover plate body is also provided with a side blowing air outlet communicated with the side blowing air channel and a direct blowing air outlet air door device communicated with the direct blowing air channel, and the side blowing air channel, the direct blowing air channel and the air inlet cavity are controlled to be communicated. The utility model improves the food material fresh-keeping effect of the refrigerator.

Description

Air duct cover plate for refrigerator and refrigerator

Technical Field

The utility model belongs to the technical field of refrigeration equipment, and particularly provides an air duct cover plate for a refrigerator and the refrigerator.

Background

The air-cooled refrigerator includes a storage compartment, an evaporator, an evaporation fan, and the like. The storage chamber is used for placing stored objects such as food and the like, the evaporator is used for cooling air around the evaporator, and the evaporation fan is used for conveying the air cooled by the evaporator to the storage chamber and blowing the air to the food in the storage chamber.

Users also often desire that food materials be as fresh-kept as possible when freezing/refrigerating food materials. The food materials are required to be cooled rapidly, so that the freezing/refrigerating effect of the food materials is realized; meanwhile, the food material needs to reduce the moisture as little as possible so as to realize the fresh-keeping effect of the food material. However, when the food material is rapidly frozen/refrigerated, the flow rate of the cold air blowing to the food material is large, and a large amount of moisture on the food material can be taken away, so that the moisture content of the food material is reduced; in order to reduce the loss of moisture in the food material, the flow rate of air needs to be reduced, and the effect of quickly freezing the food material cannot be realized.

When the existing air-cooled refrigerator is used for freezing/refrigerating food materials, the food materials are frequently subjected to excessive moisture loss due to the fact that the flow rate of cold air entering a storage chamber is too large, the fresh-keeping effect of the food materials is poor, and the use experience of a user is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the food material is easy to lose excessive moisture when the food material is frozen/refrigerated in the existing refrigerator, so that the food material fresh-keeping effect is poor.

In order to achieve the above object, the present invention provides, in a first aspect, an air duct cover for a refrigerator, where the refrigerator includes an air supply duct and a storage compartment, the air duct cover is disposed between the air supply duct and the storage compartment, the air duct cover includes a cover body and an air door device, a first layer of space and a second layer of space are disposed on the cover body, the first layer of space includes a side air blowing duct, the second layer of space includes a direct blowing duct, one of the first layer of space and the second layer of space further includes an air inlet cavity, and the side air blowing duct and the direct blowing duct are respectively communicated with the air inlet cavity; the cover plate body is also provided with a side blowing air outlet communicated with the side blowing air channel and a direct blowing air outlet communicated with the direct blowing air channel; the air door device is used for controlling the communication between the side air blowing channel and the direct blowing channel and the air inlet cavity.

Optionally, the first floor space layer is located on a side of the second floor space layer remote from the storage compartment; and/or the air inlet cavity is formed in the first layer of space layer.

Optionally, the first layer of space layer further comprises a first channel, and the air inlet cavity is communicated with the side air blowing channel through the first channel.

Optionally, the air duct cover plate further includes a second passage communicating the first passage with the straight blowing air duct.

Optionally, the damper device is arranged at the junction of the second passage and the first passage, such that the damper device alternatively blocks the first passage or the second passage.

Optionally, the damper device includes a first damper and a first driving device for driving the first damper to move, and the first damper is slidably connected to the cover plate body.

Optionally, the air door device includes a second air door, a second driving device for driving the second air door to move, a third air door, and a third driving device for driving the third air door to move, the second air door is configured to control the communication between the side air blowing channel and the air inlet cavity, and the third air door is configured to control the communication between the direct air blowing channel and the air inlet cavity.

Optionally, the second damper is disposed within the first passage and between the second passage and the side blow passage.

Optionally, the third damper is disposed within the second passage.

In addition, the utility model also provides a refrigerator in a second aspect, and the refrigerator comprises the air duct cover plate in any one of the first aspects.

Based on the foregoing description, those skilled in the art can understand that, in the foregoing technical solution of the present invention, by providing the first layer space and the second layer space on the cover plate body, the side air blowing channel is provided in the first layer space, the direct blowing channel is provided in the second layer space, the air inlet cavity is provided in the first layer space or the second layer space, and the side air blowing channel and the direct blowing channel are respectively communicated with the air inlet cavity; and the cover plate body is provided with a side blowing air outlet communicated with the side blowing air channel and a direct blowing air outlet communicated with the direct blowing air channel, so that cold air in the air supply air channel can enter the storeroom through the air inlet cavity, the side blowing air channel and the side blowing air outlet, and the cold air in the air supply air channel can enter the storeroom through the air inlet cavity, the direct blowing air channel and the direct blowing air outlet. Furthermore, the ventilation door device controls the communication between the side air blowing channel and the direct blowing channel and the air inlet cavity, so that cold air in the air supply channel can enter the air supply channel alternatively through the air inlet cavity, the side air blowing channel and the side air blowing outlet or through the air inlet cavity, the direct blowing channel and the direct blowing outlet. In the food fresh-keeping device, when cold air in the air supply duct enters the storage chamber through the air inlet cavity, the side air blowing duct and the side air blowing outlet, air flow entering the storage chamber is small, a large amount of moisture on food materials in the storage chamber can be prevented from being taken away by the air flow, and further loss of the moisture of the food materials can be reduced, so that the fresh-keeping effect of the food materials is improved. When cold air in the air supply air duct enters the storage chamber through the air inlet cavity, the direct blowing air duct and the direct blowing air outlet, air flow entering the storage chamber is large, rapid cooling can be performed on food materials in the storage chamber, the food materials are rapidly cooled, cooling time of the food materials is shortened, and therefore the fresh-keeping effect of the food materials is improved.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly explain the technical solution of the present invention, some embodiments of the present invention will be described hereinafter with reference to the accompanying drawings. Those skilled in the art will appreciate that elements or portions of the same reference number are the same or similar in different figures; the drawings of the utility model are not necessarily to scale relative to each other. In the drawings:

FIG. 1 is an isometric view of a refrigerator (refrigerator door not shown) in some embodiments of the utility model;

FIG. 2 is a schematic cross-sectional view of the refrigerator of FIG. 1 taken along the direction A-A;

FIG. 3 is a rear isometric view of a portion of an air duct cover in accordance with certain embodiments of the utility model;

FIG. 4 is a front isometric view of a portion of an air duct cover in accordance with certain embodiments of the utility model;

FIG. 5 is a schematic cross-sectional view of the airway cover portion of FIG. 4 taken along the direction B-B;

FIG. 6 is a schematic cross-sectional view of the duct deck of FIG. 5 taken along the C-C direction;

FIG. 7 is a schematic cross-sectional view of the duct cover D-D of FIG. 5;

FIG. 8 is a schematic view of the construction of a damper assembly according to some embodiments of the utility model;

FIG. 9 is a schematic illustration of the effect of the use of the damper assembly in some embodiments of the present invention;

FIG. 10 is an enlarged schematic view of section F of FIG. 9 (the damper device blocking the first passage);

FIG. 11 is an enlarged schematic view of section F of FIG. 9 (the damper device blocking the second passage);

FIG. 12 is a schematic view of the effect of the use of a damper assembly according to further embodiments of the utility model.

Detailed Description

It should be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present invention, not all of the embodiments of the present invention, and the part of the embodiments are intended to explain the technical principles of the present invention and not to limit the scope of the present invention. All other embodiments, which can be obtained by a person skilled in the art based on the embodiments provided by the present invention without inventive effort, shall still fall within the scope of protection of the present invention.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate the directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The structure of the refrigerator according to some embodiments of the present invention will be described in detail with reference to fig. 1 to 11. Fig. 1 is an isometric view of a refrigerator (refrigerator door not shown) in accordance with some embodiments of the utility model, fig. 2 is a schematic cross-sectional view of the refrigerator of fig. 1 along direction a-a, fig. 3 is a rear isometric view of a duct cover in some embodiments of the utility model, fig. 4 is a front isometric view of a duct cover in some embodiments of the utility model, FIG. 5 is a schematic cross-sectional view taken along the B-B direction of the duct deck of FIG. 4, FIG. 6 is a schematic cross-sectional view taken along the C-C direction of the duct deck of FIG. 5, fig. 7 is a schematic cross-sectional view of the duct cover D-D of fig. 5, fig. 8 is a schematic view of the damper assembly in accordance with some embodiments of the present invention, fig. 9 is a schematic view showing the effect of the use of the damper device according to some embodiments of the present invention, fig. 10 is an enlarged view of portion F of fig. 9 (the damper device blocks the first passage), and fig. 11 is an enlarged view of portion F of fig. 9 (the damper device blocks the second passage).

It should be noted that, for convenience of description and to enable those skilled in the art to quickly understand the technical solution of the present invention, only the technical features that are strongly related (directly related or indirectly related) to the technical problem and/or the technical concept to be solved by the present invention will be described later, and no detailed description will be given to the technical features that are weakly related to the technical problem and/or the technical concept to be solved by the present invention. Since the technical features with a weaker degree of association belong to the common general knowledge in the field, the utility model does not lead to insufficient disclosure of the utility model even if the features with the weaker degree of association are not described.

As shown in fig. 1 and 2, in some embodiments of the present invention, a refrigerator includes a cabinet 1, an evaporator 2, a duct cover 3, and a fan 4. The refrigerator body 1 is defined with a storage chamber 11, an air supply duct 12 and a refrigeration chamber 13 which are sequentially communicated as an equipment body, the evaporator 2 is installed in the refrigeration chamber 13, an air duct cover plate 3 is arranged between the air supply duct 12 and the storage chamber 11, and the fan 4 is installed on the air duct cover plate 3.

In some embodiments of the present invention, when the refrigerator is in operation, the evaporator 2 cools the air in the cooling chamber 13, and the air cooled by the evaporator 2 flows through the air supply duct 12 and the storage chamber 11 in sequence under the driving of the fan 4, and finally flows back into the cooling chamber 13.

Furthermore, those skilled in the art may omit the refrigeration compartment 13 and dispose the evaporator 2 in the supply air duct 12 in other embodiments of the present invention, as needed.

Further, although the refrigerator in fig. 1 and 2 has two inner containers (for defining the storage chamber 11) and each inner container is configured with the air duct cover plate 3 and the fan 4, in other embodiments of the present invention, a person skilled in the art may also configure other numbers of inner containers, such as one, three, four, etc., for the refrigerator as needed. When the refrigerator is provided with at least two inner containers, a person skilled in the art can also enable at least one part of all the inner containers to share the air duct cover plate 3 and the fan 4 according to requirements.

As shown in fig. 3 to 5, the duct cover 3 includes a cover body 31, and the cover body 31 includes an inner side plate 311, an intermediate side plate 312, and an outer side plate 313. Wherein, the inner side plate 311, the middle side plate 312 and the outer side plate 313 are fixedly connected or integrally manufactured. The inner side plate 311 is located on a side of the cover body 31 away from the storage chamber 11, the outer side plate 313 is located on a side of the cover body 31 close to the storage chamber 11, and the intermediate side plate 312 is located between the inner side plate 311 and the outer side plate 313.

As shown in fig. 5 to 8, the cover body 31 is provided with a first-layer space 314 and a second-layer space 315. The first floor space 314 is formed between the inner side plate 311 and the middle side plate 312, and the second floor space 315 is formed between the middle side plate 312 and the outer side plate 313. Further, the first floor space 314 includes an air inlet chamber 3141, a first channel 3142 and a side blowing duct 3143 which are sequentially communicated. The second floor space 315 includes a through-blowing duct 3151. The middle side plate 312 is further provided with a second channel 316, the second channel 316 is communicated with the first channel 3142 through one end thereof, and the second channel 316 is communicated with the straight blow duct 3151 through the other end thereof.

As shown in fig. 3 and 5, the inner side plate 311 is provided with a mounting hole (not shown) communicating with the air inlet chamber 3141, and the fan 4 is mounted into the air inlet chamber 3141 through the mounting hole. Preferably, the fan 4 is a centrifugal fan. Of course, in other embodiments of the present invention, the fan 4 may be any other feasible fan, such as an axial flow fan, as required by those skilled in the art.

As shown in fig. 3 to 7, the outer panel 313 is provided with a plurality of side blowing outlets 3131 and a plurality of through blowing outlets 3132. Each side-blowing outlet 3131 is connected to the side-blowing duct 3143, and each blow-through outlet 3132 is connected to the blow-through duct 3151. The side-blowing air outlets 3131 are mainly distributed on the left and right sides of the air duct cover plate 3, and the direct-blowing air outlets 3132 are mainly distributed in the middle of the air duct cover plate 3. Further, those skilled in the art can also make appropriate adjustments to the distribution of the straight air outlet 3132 and the side air outlet 3131, for example, to make the side air outlet 3131 distributed on the upper side of the duct cover 3.

Heretofore, it will be understood by those skilled in the art that in some embodiments of the present invention, the air inlet chamber 3141, the first channel 3142, the side blowing duct 3143 and the side blowing outlet 3131 are in communication with one another, and the air inlet chamber 3141, the first channel 3142, the second channel 316, the straight blowing duct 3151 and the straight blowing outlet 3132 are in communication with one another. When the fan 4 rotates, cold air in the air supply duct 12 can be driven to enter the storage chamber 11 through the air inlet cavity 3141, the first channel 3142, the side air blowing duct 3143 and the side air blowing outlet 3131; when the fan 4 rotates, the cold air in the air supply duct 12 can be driven to enter the storage chamber 11 through the air inlet cavity 3141, the first channel 3142, the second channel 316, the straight air blowing duct 3151 and the straight air blowing outlet 3132.

As shown in fig. 8 to 11, the duct cover 3 further includes a damper device 32. In some embodiments of the present invention, the damper assembly 32 includes a first damper 321 and a first drive 322 in driving communication with the first damper 321. Specifically, the first damper 321 includes a longitudinal baffle 3211 and a transverse baffle 3212, and the longitudinal baffle 3211 and the transverse baffle 3212 are fixedly connected or integrally formed. The first driving device 322 is a linear driving device. Optionally, the first driving device 322 is an electromagnetic push rod.

As shown in fig. 8 to 11, the first damper 321 is slidably connected to the cover body 31, the first driving device 322 is fixedly connected to the cover body 31, and the first driving device 322 is fixedly connected to the first damper 321. The first drive 322 is capable of driving the first damper 321 to move to a position blocking the first passageway 3142 (as shown in fig. 10), and the first drive 322 is also capable of driving the first damper 321 to move to a position blocking the second passageway 316 (as shown in fig. 11).

As shown in fig. 10, the first damper 321 blocks the first passage 3142 through the longitudinal baffle 3211, and cool air in the air supply duct 12 enters the storage compartment 11 through the air inlet cavity 3141, the first passage 3142, the side air blowing passage 3143 and the side air blowing outlet 3131.

As shown in fig. 11, the first damper 321 shields the end of the second passage 316 by the transverse baffle 3212, and cool air in the air supply passage 12 enters the storage compartment 11 through the air inlet cavity 3141, the first passage 3142, the second passage 316, the straight air blowing passage 3151 and the straight air outlet 3132.

As can be seen from fig. 4, the size of the side blowing port 3131 is smaller than that of the through blowing port 3132, so that when the first shutter 321 is moved to the position shown in fig. 10, cold air is blown out from the through blowing port 3132, and the flow rate is large, so that the food in the storage compartment 11 can be rapidly cooled, and thus the cooling time of the food can be shortened; when the first shutter 321 is moved to the position shown in fig. 11, cold air is blown out from the side blowing port 3131, and the flow rate is small, so that the food in the storage compartment 11 can be kept warm. Because the flow rate of the cold air blown out from the side blowing outlet 3131 is relatively low, the cold air does not take away excessive moisture on the food material, thereby preventing the food material from losing excessive moisture.

Further, although not shown in the drawings, in some embodiments of the present invention, the refrigerator further includes an optional temperature sensor for detecting the temperature of the storage chamber 11.

When the first damper 321 is located at the position shown in fig. 10 and the temperature sensor detects that the temperature in the storage compartment 11 is reduced to the first preset temperature, it indicates that the rapid cooling of the food material by the refrigerator is finished, and the first driving device 322 drives the first damper 321 to move to the position shown in fig. 11.

When the first damper 321 is located at the position shown in fig. 11 and the temperature sensor detects that the temperature in the storage chamber 11 rises to the second preset temperature, which indicates that the temperature in the storage chamber 11 is high, rapid cooling is required, so that the first driving device 322 drives the first damper 321 to move to the position shown in fig. 10.

Wherein the first preset temperature is lower than the second preset temperature. For example, the first predetermined temperature is lower than the second predetermined temperature by 2 ℃, 3 ℃, 5 ℃, etc.

Based on the foregoing description, those skilled in the art can understand that, in some embodiments of the present invention, the refrigerator can not only rapidly cool the food material, but also prevent the food material from losing too much water, and improve the fresh-keeping effect of the food material.

Further embodiments of the present invention are described in detail below with reference to fig. 12, and for ease of understanding by those skilled in the art and for ease of description, only the differences between the further embodiments and the preceding embodiments will be described in detail below. For the parts of other embodiments that are the same as the previous embodiments, reference may be made to the corresponding description of the previous embodiments.

As shown in fig. 12, unlike some of the previously described embodiments, in other embodiments of the present invention, the damper apparatus 32 includes a second damper 323, a third damper 324, a second drive (not shown) for driving the second damper 323 to move, and a third drive (not shown) for driving the third damper 324 to move. The second damper 323 is configured to control communication between the side blow duct 3143 and the intake chamber 3141, and the third damper 324 is configured to control communication between the direct blow duct 3151 and the intake chamber 3141. Specifically, the second damper 323 is disposed within the first passage 3142 and between the second passage 316 and the side blow passage 3143. A third damper 324 is disposed in the second passage 316.

Alternatively, the second damper 323 and the third damper 324 are pivotally connected to the cover body 31, respectively. The second driving device and the third driving device are respectively fixedly connected to the cover plate body 31, and the second driving device and the third driving device may be any feasible driving devices, such as a motor, an electromagnetic push rod, and the like.

When the food in the storage compartment 11 needs to be cooled rapidly, the second damper 323 opens the second passage 316, and the third damper 324 blocks the second passage 316.

When the rapid cooling of the food in the storage compartment 11 is finished and the temperature needs to be kept, the second damper 323 blocks the second passage 316, and the third damper 324 opens the second passage 316.

When the evaporator 2 needs defrosting, the second air door 323 blocks the second passage 316, and the third air door 324 blocks the second passage 316, so as to prevent hot air in the air supply duct 12 from entering the storage chamber 11 and affecting the fresh-keeping effect of food materials.

Based on the foregoing description, it can be understood by those skilled in the art that, in other embodiments of the present invention, the refrigerator further prevents hot air generated when the evaporator 2 defrosts from entering the storage chamber 11, which affects the food preservation effect.

So far, the technical solution of the present invention has been described in connection with the foregoing embodiments, but it is easily understood by those skilled in the art that the scope of the present invention is not limited to these specific embodiments. Without departing from the technical principle of the present invention, a person skilled in the art may split and combine the technical solutions in the above embodiments, and may make equivalent changes or substitutions for related technical features, and any changes, equivalents, improvements, etc. made within the technical concept and/or technical principle of the present invention will fall within the protection scope of the present invention.

Claims (10)

1. An air duct cover plate for a refrigerator, the refrigerator comprises an air supply air duct and a storage chamber, the air duct cover plate is arranged between the air supply air duct and the storage chamber, the air duct cover plate is characterized by comprising a cover plate body and an air duct device,

the cover plate body is provided with a first layer of space and a second layer of space, the first layer of space comprises a side blowing channel, the second layer of space comprises a direct blowing channel, one of the first layer of space and the second layer of space further comprises an air inlet cavity, and the side blowing channel and the direct blowing channel are respectively communicated with the air inlet cavity;

the cover plate body is also provided with a side blowing air outlet communicated with the side blowing air channel and a direct blowing air outlet communicated with the direct blowing air channel;

the air door device is used for controlling the communication between the side air blowing channel and the direct blowing channel and the air inlet cavity.

2. The air duct cover plate for a refrigerator according to claim 1,

the first layer of space layer is positioned on the side of the second layer of space layer away from the storage chamber; and/or the like and/or,

the air inlet cavity is formed in the first layer of space layer.

3. The air duct cover plate for a refrigerator according to claim 2,

the first layer of space layer further comprises a first channel, and the air inlet cavity is communicated with the side air blowing channel through the first channel.

4. The air duct cover plate for a refrigerator according to claim 3,

the air duct cover plate further comprises a second channel which is used for communicating the first channel with the straight blowing air duct.

5. The air duct cover plate for a refrigerator according to claim 4,

the damper device is disposed at a junction of the second passage and the first passage so that the damper device alternatively blocks the first passage or the second passage.

6. The air duct cover plate for a refrigerator according to claim 5,

the air door device comprises a first air door and a first driving device for driving the first air door to move, and the first air door is connected with the cover plate body in a sliding mode.

7. The air duct cover plate for a refrigerator according to claim 4,

the air door device comprises a second air door, a second driving device for driving the second air door to move, a third air door and a third driving device for driving the third air door to move,

the second air door is configured to control the communication between the side air blowing channel and the air inlet cavity,

the third air door is configured to control the communication between the direct blowing air duct and the air inlet cavity.

8. The air duct cover plate for a refrigerator according to claim 7,

the second damper is disposed within the first passage and between the second passage and the side blow passage.

9. The air duct cover plate for a refrigerator according to claim 8,

the third damper is disposed within the second passage.

10. A refrigerator comprising the air duct cover of any one of claims 1 to 9.

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