CN217465079U

CN217465079U - Air duct cover plate for refrigerator and refrigerator

Info

Publication number: CN217465079U
Application number: CN202123204565.6U
Authority: CN
Inventors: 刘建如; 薛文超
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: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-09-20
Anticipated expiration: 2031-12-17

Abstract

The utility model belongs to the technical field of refrigeration plant, a wind channel apron and refrigerator for refrigerator is specifically provided. The utility model discloses aim at solving current refrigerator and make when freezing/cold-stored edible material easily and eat material and run off too much moisture, cause to eat the fresh-keeping relatively poor problem of material effect. The utility model discloses a refrigerator includes air supply duct and storeroom. The air duct cover plate comprises a cover plate body, a first air door device and a second air door device. The cover plate body is provided with an air inlet cavity communicated with the air supply channel, a direct blowing air outlet communicated with the storage chamber, a side blowing air outlet communicated with the storage chamber, a main air channel for communicating the direct blowing air outlet with the air inlet cavity and an auxiliary air channel for communicating the side blowing air outlet with the air inlet cavity, wherein the auxiliary air channel is positioned on one side of the main air channel. The first air door device is used for controlling the opening and closing of the direct blowing air outlet, and the second air door device is used for controlling the opening and closing of the side blowing air outlet. The utility model discloses reduce the loss of eating material moisture, promoted the fresh-keeping effect of eating the material.

Description

Air duct cover plate for refrigerator and refrigerator

Technical Field

The utility model belongs to the technical field of refrigeration plant, a wind channel apron and refrigerator for refrigerator is specifically provided.

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 materials, the evaporator is used for cooling air around the storage chamber, 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 materials 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 achieved.

When the existing air-cooled refrigerator freezes or refrigerates food materials, the flow rate of cold air entering a storage chamber is too high, so that the food materials can often lose too much water, and the freshness of the food materials is influenced. In addition, hot air generated by the refrigerator during defrosting of the evaporator can enter the storage chamber, so that temperature rise occurs in the storage chamber, and the fresh-keeping effect of food materials is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve current air-cooled refrigerator and when freezing/cold-stored eating the material, often can make to eat the material and lose more moisture, and then lead to eating the fresh-keeping relatively poor problem of material effect.

In order to achieve the above object, the present invention provides in a first aspect a wind channel cover plate for a refrigerator, the refrigerator includes an air supply wind channel and a storeroom, the wind channel cover plate is arranged between the air supply wind channel and the storeroom, the wind channel cover plate includes:

a cover plate body having an air inlet chamber communicating with the air supply duct, a blow-through outlet communicating with the storage compartment, a side blow outlet communicating with the storage compartment, a main duct communicating the blow-through outlet with the air inlet chamber, and a sub-duct communicating the side blow outlet with the air inlet chamber, the sub-duct being located at one side of the main duct;

a first damper device for controlling the opening and closing of the blow-through outlet;

and a second damper device for controlling the opening and closing of the side blow outlet.

Optionally, the secondary air duct is located on one side of the primary air duct in the horizontal direction.

Optionally, the projection of the secondary air duct on the cover plate body is 1/10 to 1/3 of the projection of the primary air duct on the cover plate body.

Optionally, the first damper device includes a first damper for shielding the blow-through outlet and a first driving device for driving the first damper to move, and the first driving device and the first damper are configured to enable the first damper to move to a first position where the blow-through outlet is completely shielded, a second position where the blow-through outlet is completely opened, and a third position where the blow-through outlet is partially shielded.

Optionally, the air duct cover plate further includes a wind deflector disposed at the straight blowing air outlet.

Optionally, the wind deflector protrudes from one surface of the cover plate body close to the storage chamber.

Optionally, the air duct cover plate further includes a grille disposed at the side blowing outlet.

Optionally, the duct cover further includes a fan mounted in the air intake chamber.

Optionally, the air inlet cavity is arranged at the top of the cover plate body, the direct-blowing air outlet is arranged at the bottom side of the air inlet cavity, and the side-blowing air outlet is arranged at the left side or the right side of the air inlet cavity.

Furthermore, the present invention provides, in a second aspect, a refrigerator including the air duct cover plate of 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, through setting up the air inlet chamber that communicates with the air supply duct on the apron body, the blow-out port that directly communicates with the storeroom, the side-blown air outlet that communicates with the storeroom, the main air duct that communicates with the blow-out port and air inlet chamber and the auxiliary air duct that communicates with the air inlet chamber, make the interior cold wind of air supply duct can get into the storeroom via the air inlet chamber, main air duct and blow-out port, can also get into the storeroom via the air inlet chamber, auxiliary air duct and side-blown air outlet. Through for the first air door device that the wind channel apron configuration was used for controlling the switching of blow-through air outlet and the second air door device that is used for controlling the switching of side-blown air outlet for cold wind in the air supply wind channel can alternatively get into the storeroom through blow-through air outlet or side-blown air outlet.

The utility model discloses in, when cold wind in the air supply duct got into the storage chamber via air inlet chamber, main air duct and blow-out mouth, the air current that gets into in the storage chamber was great, can carry out rapid cooling to the edible material in the storage chamber, made edible material by rapid cooling, shortened the cool time who eats the material. When cold air in the air supply duct enters the storage chamber through the air inlet cavity, the auxiliary duct and the side-blowing air 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 then the loss of the moisture of the food materials can be reduced, so that the fresh-keeping effect of the food materials is improved.

Further, first air door gear and second air door gear still make the utility model discloses a refrigerator when defrosting the evaporimeter, has avoided the hot-air admission storage compartment in the air supply duct in, influences the freezing/cold-stored effect of eating the material.

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 illustrate the technical solution of the present invention, some embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art will appreciate that elements or portions of the same reference number identified in different figures are the same or similar; the drawings of the present invention are not necessarily drawn to scale relative to each other. In the drawings:

fig. 1 is an isometric view of a refrigerator door (refrigerator door not shown) in some embodiments of the present invention;

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

fig. 3 is a front isometric view of a portion of an air duct flap according to some embodiments of the present invention;

fig. 4 is a rear isometric view of a portion of a duct flap in some embodiments of the invention;

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

FIG. 6 is a cross-sectional view of the portion of the airway cover of FIG. 4 taken along the direction B-B (direct blow cooling);

FIG. 7 is a cross-sectional view of the air duct cover portion of FIG. 4 taken along the direction B-B (side-blow cooling);

FIG. 8 is a cross-sectional view of the vent cover portion of FIG. 4 taken along the direction B-B (evaporator defrost);

fig. 9 is a schematic view of a first damper device according to some embodiments of the present invention.

Detailed Description

It is to be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present invention, and not all embodiments of the present invention, and the part of the embodiments are intended to explain the technical principle of the present invention and not to limit the scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by a person skilled in the art without any inventive work should still fall within the scope 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", etc. indicating 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; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The following describes a part of the structure of the refrigerator according to some embodiments of the present invention in detail with reference to fig. 1 and 2. Wherein, fig. 1 is an axial view (not shown in the refrigerator door) of the refrigerator according to some embodiments of the present invention, and fig. 2 is a schematic sectional view along a-a direction of the refrigerator in fig. 1.

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 having a strong association degree (directly or indirectly) with the technical problems and/or technical concepts to be solved by the present invention will be described later, and the technical features having a weak association degree with the technical problems and/or technical concepts to be solved by the present invention will not be described again. Since the technical features with a low degree of correlation belong to the common general knowledge in the art, the present invention does not cause insufficient disclosure even if the features with a low degree of correlation are not described.

As shown in fig. 1 and 2, in some embodiments of the present invention, the refrigerator includes a cabinet 1, an evaporator 2, a duct cover 3, and a fan 4. The refrigerator comprises a refrigerator body 1, an evaporator 2, an air supply duct 12, a refrigerating chamber 13, an air duct cover plate 3, a fan 4 and a storage chamber 11, wherein the storage chamber 11, the air supply duct 12 and the refrigerating chamber 13 are sequentially communicated with one another, the evaporator is installed in the refrigerating chamber 13, the 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 air in the refrigerating chamber 13 is cooled by the evaporator 2, 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 to the refrigerating chamber 13.

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

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 configure other number 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.

The air duct cover portion of the refrigerator according to some embodiments of the present invention will be described in detail with reference to fig. 3 to 9. Wherein, fig. 3 is a front perspective view of the air duct cover part in some embodiments of the present invention, fig. 4 is a rear perspective view of the air duct cover part in some embodiments of the present invention, fig. 5 is an isometric sectional view of the air duct cover part in the B-B direction in fig. 4, fig. 6 is a sectional view of the air duct cover part in the B-B direction in fig. 4 (direct blow refrigeration), fig. 7 is a sectional view of the air duct cover part in the B-B direction in fig. 4 (side blow refrigeration), fig. 8 is a sectional view of the air duct cover part in the B-B direction in fig. 4 (evaporator defrosting), fig. 9 is a schematic structural view of the first air door device in some embodiments of the present invention.

As shown in fig. 2 to 5, the air duct cover 3 includes a cover body 31, a vertical blowing outlet 321, a side blowing outlet 322, an air inlet chamber 33, a main air duct 341, a sub air duct 342, a first damper device 351, and a second damper device 352.

As shown in fig. 2 to 4, both the direct-blowing air outlet 321 and the side-blowing air outlet 322 are disposed at one side of the air duct cover plate 3 facing the storage chamber 11, and the direct-blowing air outlet 321 is used for directly blowing cold air to the middle part of the storage chamber 11 so as to directly blow the cold air to the food materials in the storage chamber 11, thereby rapidly cooling the food materials. The side blowing outlet 322 is used for blowing cold air to the side wall or the side portion of the storage chamber 11 to prevent the cold air from directly blowing the food material in the storage chamber 11, and further prevent the cold air from taking away the moisture on the food material.

With reference to fig. 3, 6 to 8, the blow-out ports 321 and the side-blow-out ports 322 are respectively plural, the blow-out ports 321 are mainly distributed in the middle of the air duct cover plate 3, and the side-blow-out ports 322 are mainly distributed on one side (left side or right side) of the air duct cover plate 3. Furthermore, those skilled in the art can also make appropriate adjustments to the distribution of the straight air outlet 321 and the side air outlets 322, for example, to make the side air outlets 322 distributed on the upper side of the duct cover 3.

Alternatively, the size of the through-blowing ports 321 is larger than that of the side-blowing ports 322, so that the airflow blown out from the through-blowing ports 321 is larger than that blown out from the side-blowing ports 322.

Further alternatively, in order to avoid the blowthrough vent 321 from blowing through the food in the storage compartment 11, a wind shield (not shown in the figure) may be further provided at the blowthrough vent 321. Specifically, the wind screen is protruded from one surface of the cover plate body 31 near the storage chamber 11. Further alternatively, in order to slow down the wind speed at the side blow outlet 322, a grill (not shown) may be provided at the side blow outlet 322 to divide the airflow blown out from the side blow outlet 322 into a plurality of strands through the grill, thereby reducing the flow rate of a single airflow.

As shown in fig. 5, the air intake chamber 33 is provided at the top of the cover plate body 31, the straight blow-out port 321 is provided at the bottom side of the air intake chamber 33, and the side blow-out port 322 is provided at one side (left or right side) of the air intake chamber 33. In addition, the skilled person can also arrange the air inlet chamber 33 at other positions of the cover plate body 31 according to the actual requirement, for example, arrange the air inlet chamber 33 at the middle or lower part of the cover plate body 31.

Referring to fig. 5, the air inlet chamber 33, the main air duct 341 and the direct-blowing air outlet 321 are sequentially communicated, so that the cold air in the air supply duct 12 can flow into the storage chamber 11 through the air inlet chamber 33, the main air duct 341 and the direct-blowing air outlet 321 to rapidly cool the food materials in the storage chamber 11. The air inlet cavity 33, the secondary air duct 342 and the side blowing outlet 322 are sequentially communicated, so that cold air in the air supply duct 12 can flow into the storage chamber 11 through the air inlet cavity 33, the secondary air duct 342 and the side blowing outlet 322, and heat preservation is performed on food materials in the storage chamber 11.

As shown in fig. 5 to 8, the secondary air path 342 is located at one side of the main air path 341 in the horizontal direction, and the projection of the secondary air path 342 on the cover body 31 is 1/10 to 1/3 of the projection of the main air path 341 on the cover body 31. The reason for this is that the airflow blown out from the straight blow-out port 321 is larger than the airflow blown out from the side blow-out port 322, and therefore the airflow flowing through the main air path 341 is larger than the airflow flowing through the sub air path 342. It can be understood by those skilled in the art that the arrangement method between the main air duct 341 and the auxiliary air duct 342 can effectively reduce the wind resistance of the air flow in the main air duct 341, and also ensure that the air flow has a certain flow speed in the auxiliary air duct 342, so that the air flow can be blown far enough to uniformly insulate the storage chamber 11 when being blown out from the side-blowing air outlet 322.

In addition, those skilled in the art may also dispose the sub-air passage 342 on the upper or lower side of the main air passage 341 as needed.

With continued reference to fig. 5-8, the secondary air duct 342 is generally triangular in shape, and the junction of the secondary air duct 342 with the air intake cavity 33 is located at one corner of the triangle.

In addition, the secondary air duct 342 may be formed in any other feasible shape, such as L-shape, M-shape, strip-shape, rectangular shape, etc., as desired by those skilled in the art.

As shown in fig. 5-8, a first damper device 351 is disposed at the junction of the main air duct 341 and the air inlet chamber 33, and a second damper device 352 is disposed at the junction of the secondary air duct 342 and the air inlet chamber 33.

As shown in fig. 6, when the refrigerator rapidly cools the food in the storage chamber 11, the first damper device 351 is opened to communicate the main duct 341 with the air inlet chamber 33; the second damper device 352 is closed to block communication between the secondary air path 342 and the air intake chamber 33. At this time, the cold air in the air supply duct 12 enters the storage chamber 11 through the air inlet chamber 33, the main air duct 341 and the direct blowing outlet 321, and cools the food in the storage chamber 11 rapidly.

As shown in fig. 7, when the refrigerator finishes quickly cooling the food in the storage chamber 11 and needs to keep warm, the first damper device 351 is closed to block the communication between the main air duct 341 and the air inlet chamber 33; the second damper device 352 is opened to communicate between the secondary air duct 342 and the air intake chamber 33. At this time, the cool air in the air supply duct 12 enters the storage chamber 11 through the air inlet chamber 33, the sub-duct 342, and the side air outlet 322, and keeps the temperature of the food in the storage chamber 11.

As shown in fig. 8, when the evaporator 2 needs defrosting, the first damper device 351 is closed to block the communication between the main duct 341 and the air intake chamber 33; and the second air door 352 is closed to block the communication between the secondary air duct 342 and the air inlet chamber 33, so as to prevent the hot air in the air supply duct 12 from entering the storage chamber 11 and affecting the food fresh-keeping effect.

In some embodiments of the present invention, the first and

second damper devices

351, 352 may be any feasible damper devices, and the first and

second damper devices

351, 352 may be the same damper device or different damper devices.

Illustratively, the first and

second damper devices

351, 352 are identical damper devices, and the first damper device 351 will be described in detail with reference to fig. 9.

As shown in fig. 9, the first damper device 351 includes a first damper 3511 for shielding the blow-through outlet 321 and a first driving device 3512 for driving the first damper 3511 to move. Specifically, the first driving device 3512 is a motor fixedly connected to the cover plate body 31.

In some embodiments of the present invention, the first driving device 3512 can move the first damper 3511 to a first position (shown in fig. 7) for completely shielding the blow-through outlet 321, a second position (shown in fig. 6) for completely opening the blow-through outlet 321, and a third position (not shown) for partially shielding the blow-through outlet 321.

The utility model discloses an in some embodiments, when first air door 3511 is located the third position that the part sheltered from directly-blown air outlet 321, wind speed through flowing out of directly-blown air outlet 321 is also less, can not take away and eat material too much moisture, can be used for assisting the refrigerator and keep warm to eating the material, perhaps is used for assisting the refrigerator and carries out slow refrigeration to eating the material.

Likewise, although not shown, the second damper assembly 352 may also include a second damper and a second drive assembly as previously described for the first damper assembly 351, and the second drive assembly may be a motor secured to the cover body 31.

Based on the foregoing description, it can be understood by those skilled in the art that, in some embodiments of the present invention, when the cold air in the air supply duct 12 enters the storage chamber 11 through the air inlet cavity 33, the main air duct 341 and the direct blowing air outlet 321, the air flow entering the storage chamber 11 is relatively large, so as to rapidly cool the food in the storage chamber 11, such that the food is rapidly cooled, and the cooling time of the food is shortened. When cold air in the air supply duct 12 enters the storage chamber through the air inlet cavity 33, the auxiliary duct 342 and the side air blowing outlet 322, air flow entering the storage chamber 11 is small, so that a large amount of moisture on food materials in the storage chamber 11 can be prevented from being taken away by the air flow, and further, the loss of the moisture of the food materials can be reduced, and the fresh-keeping effect of the food materials is improved. And, first air door gear 351 and second air door gear 352 still make the utility model discloses a refrigerator when defrosting evaporator 2, avoided in the hot-air admission storeroom 11 in the air supply duct 12, influence the freezing/cold-stored effect of eating the material.

So far, the technical solutions of the present invention have 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 deviating from the technical principle of the present invention, those skilled in the art can split and combine the technical solutions in the above embodiments, and also can make equivalent changes or substitutions for related technical features, and any changes, equivalent substitutions, 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

1. An air duct cover for a refrigerator, the refrigerator including an air supply duct and a storage compartment, the air duct cover being disposed between the air supply duct and the storage compartment, the air duct cover comprising:

and a second damper device for controlling opening and closing of the side blow outlet.

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

the auxiliary air duct is located on one side of the main air duct in the horizontal direction.

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

the projection of the secondary air duct on the cover plate body is 1/10-1/3 of the projection of the primary air duct on the cover plate body.

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

the first air door device comprises a first air door for shielding the direct blowing air outlet and a first driving device for driving the first air door to move,

the first driving device and the first damper are configured to be able to move the first damper to a first position that completely shields the blow-through outlet, a second position that completely opens the blow-through outlet, and a third position that partially shields the blow-through outlet.

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

the air duct cover plate further comprises an air baffle arranged at the position of the direct blowing air outlet.

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

the wind shield protrudes out of one surface of the cover plate body close to the storage chamber.

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

the air duct cover plate further comprises a grating arranged at the side air blowing outlet.

8. The air duct cover plate for a refrigerator according to any one of claims 1 to 7,

the air duct cover plate further comprises a fan arranged in the air inlet cavity.

9. The air duct cover for a refrigerator according to any one of claims 1 to 7,

the air inlet cavity is arranged at the top of the cover plate body, the direct blowing air outlet is arranged at the bottom side of the air inlet cavity, and the side blowing air outlet is arranged at the left side or the right side of the air inlet cavity.

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