WO2023138348A1

WO2023138348A1 - Air guide hole structure for refrigerating and freezing device and refrigerating and freezing device

Info

Publication number: WO2023138348A1
Application number: PCT/CN2022/144060
Authority: WO
Inventors: 张振兴; 崔展鹏; 张�浩
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2022-01-18
Filing date: 2022-12-30
Publication date: 2023-07-27
Also published as: CN116499183A

Abstract

An air guide hole structure for a refrigerating and freezing device and a refrigerating and freezing device. The air guide hole structure comprises a first air guide plate which is horizontally arranged; and a second air guide plate, the rear end of the second air guide plate being arranged right below the rear end of the first air guide plate, the second air guide plate extending upwards from its rear end and extending forwards to its front end, and the front end of the second air guide plate being located below the rear of the front end of the first air guide plate. By means of the air guide hole structure, air is guided to flow straight and is prevented from directly blowing food materials, so that a relatively high-humidity environment is provided for the preservation of the food materials, and a fresh-keeping effect is improved for the food materials.

Description

Air guide hole structure for refrigerating and freezing device and refrigerating and freezing device

technical field

The invention relates to the field of refrigerating and freezing devices, in particular to an air guide hole structure for a refrigerating and freezing device and the refrigerating and freezing device.

Background technique

Along with the raising of people's living standard, refrigerating and freezing device becomes the necessities of family life, and people usually put food material into refrigerating and freezing device. Because the current refrigerating and freezing device uses the forced convection of the refrigeration fan to freeze the ingredients, the cold air blows directly to the surface of the ingredients, taking away the original moisture on the surface of the ingredients, causing the ingredients to dry out, resulting in increased surface voids, and even air-dried cracks at the corners, destroying the original cell structure of the ingredients, resulting in loss of nutrients and a decrease in taste.

Contents of the invention

In view of the above problems, the present invention is proposed in order to provide an air guide hole structure for refrigerating and freezing devices and a refrigerating and freezing device that overcome the above problems or at least partially solve the above problems, guide the wind to flow straight through the air guide hole structure, prevent the wind from directly blowing the food, provide a relatively high humidity environment for the preservation of the food, and improve the freshness of the food.

Specifically, the present invention provides an air guide hole structure for a refrigerating and freezing device, including:

a first wind deflector, the first wind deflector is arranged horizontally;

The second wind deflector, the rear end of the second wind deflector is arranged directly below the rear end of the first wind deflector, and the second wind deflector extends upward from its rear end and forward to its front end, and the front end of the second wind deflector is located behind and below the front end of the first wind deflector.

Optionally, the length of the first wind deflector along the front-rear direction is L, the distance between the front end of the upper surface of the second wind deflector and the lower surface of the first wind deflector is a, and the angle between the second wind deflector and the horizontal plane is α; and

α=arctan{[a*η+η(ξ-1)]/L}; where

η is the first setting coefficient, and η is 1.2 to 1.5; ξ is the second setting coefficient, and ξ is 1.5 to 3.

Optionally, the air guide hole structure further includes two vertically arranged side plates, and each of the side plates is connected to a same-side edge of the first air guide plate and the second air guide plate.

Optionally, the extended surface of the upper surface of the second wind deflector passes through the first wind deflector;

The ratio of the length of the first wind deflector along the front-rear direction to the distance from the intersection line formed by the extension surface of the upper surface of the second wind deflector and the lower surface of the first wind deflector to the rear end of the first wind deflector is 1.2 to 1.5.

Optionally, the ratio of the distance between the rear end of the upper surface of the second air deflector and the lower surface of the first air deflector to the distance between the front end of the upper surface of the second air deflector and the lower surface of the first air deflector is 1.5 to 3.

Optionally, the front edge of each side plate is vertically arranged and located directly below the front end of the first wind deflector, and the lower edge of each side plate extends in a direction parallel to the upper surface of the second wind deflector.

The present invention also provides a refrigerating and freezing device, comprising:

A storage compartment, the compartment wall of the storage compartment is provided with an air outlet;

The air supply structure is configured to make part or all of the airflow flowing out of the air outlet flow straight in a direction away from the compartment wall.

Optionally, the air supply structure includes a wind deflector, and the wind deflector is horizontally arranged in the storage compartment and is located below the air outlet.

Optionally, the air supply structure includes an air guide hole structure, and the air guide hole structure is any one of the above air guide hole structures; and the rear end of the first air guide plate is arranged at the upper edge of the air outlet, and the rear end of the second air guide plate is arranged at the lower edge of the air outlet.

Optionally, a drawer is arranged inside the storage compartment, and the drawer is arranged below the air supply structure;

There are multiple air outlets corresponding to the drawer, and the multiple air outlets corresponding to the drawer are arranged at the same height and arranged at intervals in the horizontal direction; there are multiple corresponding air supply structures;

The compartment wall is the rear wall or side wall of the storage compartment;

There are a plurality of drawers arranged in sequence along the up-down direction, and a plurality of the air supply structures and corresponding air outlets are also arranged correspondingly in the up-down direction.

In the air guide hole structure used in the refrigeration and freezing device provided by the present invention, the first air guide plate is arranged horizontally, the rear end of the second air guide plate is arranged directly below the rear end of the first air guide plate, and the second air guide plate extends upward from the rear end and forward to the front end thereof, and the front end of the second air guide plate is located behind and below the front end of the first air guide plate. The wind on the upper edge of the air outlet directly blows into the lower surface of the first air deflector, so that the wind will not blow out upwards. The wind from the lower edge of the air outlet is blown forward and upward through the diversion effect of the second deflector. That is, the air guide hole structure provided by the present invention can guide the wind blown out of the air outlet to be blown out straight through the air guide hole structure, preventing the cold wind from directly blowing the ingredients, providing a relatively high-humidity environment for the preservation of the ingredients, and improving the freshness of the ingredients.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural diagram of an air guide hole structure for a refrigerating and freezing device according to an embodiment of the present invention;

Fig. 2 is a schematic partial structural diagram of an air guide hole structure for a refrigerating and freezing device according to an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of an air outlet of a refrigerating and freezing device according to an embodiment of the present invention;

Figure 4 is a schematic side sectional view of a refrigerator-freezer according to one embodiment of the present invention;

Fig. 5 is a schematic front sectional view of a refrigerator-freezer according to an embodiment of the present invention;

Fig. 6 is a flow diagram of refrigerated air in the refrigerating and freezing device according to an embodiment of the present invention.

Detailed ways

Referring to FIG. 1 to FIG. 6 , the air guide hole structure for a refrigerator and freezer and the refrigerator and freezer according to an embodiment of the present invention will be described below. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. When a feature "comprises or comprises" one or some of the features it encompasses, unless specifically stated otherwise, this indicates that other features are not excluded and that other features may be further included.

Unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixed" and "coupling" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific situations.

In addition, in the description of this embodiment, the first feature being "on" or "under" the second feature may include that the first and second features are in direct contact, and may also include that the first and second features are not in direct contact but are in contact with another feature between them. That is, in the description of this embodiment, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the level of the first feature is higher than that of the second feature. "Below", "beneath" or "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this embodiment, descriptions referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with this embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Fig. 1 is a schematic structural diagram of an air guide hole structure for a refrigerating and freezing device according to an embodiment of the present invention. As shown in Fig. 1 and with reference to Figs. 2 and 3, an embodiment of the present invention provides an air guiding hole structure for a refrigerating and freezing device. The air guide hole structure 100 includes a first air guide plate 110 and a second air guide plate 120 . The first wind deflector 110 is arranged horizontally. The rear end of the second wind deflector 120 is arranged directly below the rear end of the first wind deflector 110 , and the second wind deflector 120 extends upward and forward from its rear end to its front end, and the front end of the second wind deflector 120 is located behind and below the front end of the first wind deflector 110 .

The wind on the upper edge of the air outlet 211 blows directly into the lower surface of the first wind deflector 110 so that the wind will not blow out upwards. The wind from the lower edge of the air outlet 211 is blown forward and upward through the deflecting effect of the second deflecting plate 120. After the airflow reaches the lower surface of the first deflecting plate 110, under the deflecting effect of the front end of the first deflecting plate 110, the airflow is blown straight forward. In the air guide hole structure 100 provided by the embodiment of the present invention, the cold air blown out from the air outlet 211 is blown out straight through the air guide effect of the first air guide plate 110 and the second air guide plate 120, so as to prevent the cold wind from directly blowing the ingredients, provide a relatively high-humidity environment for the preservation of the ingredients, and improve the preservation effect of the ingredients.

In some embodiments of the present invention, as shown in FIG. 1 to FIG. 3 , the extended surface of the upper surface of the second wind deflector 120 passes through the first wind deflector 110 . That is to say, the length of the first wind deflector 110 along the front-rear direction is greater than the length of the second wind deflector 120 along the front-rear direction, so that the wind blown from the lower edge of the air outlet 211 is blown upward and forward along the upper surface of the second wind deflector 120 , and is guided by the first wind deflector 110 so that the wind blows straight forward. The ratio of the length of the first wind deflector 110 along the front and rear direction to the distance from the intersection line formed by the extension surface of the upper surface of the second wind deflector 120 and the lower surface of the first wind deflector 110 to the rear end of the first wind deflector 110 is 1.2 to 1.5. As shown in FIG. 2 , the length of the first wind deflector 110 along the front and rear direction is L, the distance from the intersection line formed by the extension surface of the upper surface of the second wind deflector 120 and the lower surface of the first wind deflector 110 to the rear end of the first wind deflector 110 is C, and L=η*C, where n is the first setting coefficient, and n is 1.2 to 1.5.

In some embodiments of the present invention, the ratio of the distance between the rear end of the upper surface of the second wind deflector 120 and the lower surface of the first wind deflector 110 to the distance between the front end of the upper surface of the second wind deflector 120 and the lower surface of the first wind deflector 110 is 1.5 to 3. As shown in FIG. 2 , the distance between the rear end of the upper surface of the second air deflector 120 and the lower surface of the first air deflector 110 is A, the distance between the front end of the upper surface of the second air deflector 120 and the lower surface of the first air deflector 110 is a, and A=ξ*a, where ξ is the second setting coefficient, and ξ is 1.5 to 3. The value of a is the value given by the designer according to the specific required air volume and the width of the air outlet 211, and the value of A can be calculated according to the value of a. This formula is simple and convenient for design calculation. Further, the distance between the front end of the second wind deflector 120 and the rear end of the second wind deflector 120 in the horizontal direction is D, and D=(A-a)*cotα.

In some embodiments of the present invention, as shown in FIG. 2 , the length of the first wind deflector 110 along the front and rear direction is L, the distance between the front end of the upper surface of the second wind deflector 120 and the lower surface of the first wind deflector 110 is a, and the angle between the second wind deflector 120 and the horizontal plane is α. And α=arctan{[a*η+η(ξ-1)]/L}; wherein η is the first set coefficient, η is 1.2 to 1.5; ξ is the second set coefficient, ξ is 1.5 to 3.

It can be known from the above formula that the angle α between the second wind deflector 120 and the horizontal plane is only related to the variable a, so only the distance a between the front end of the upper surface of the second wind deflector 120 and the lower surface of the first wind deflector 110 can be changed to control the size of the angle α between the second wind deflector 120 and the horizontal plane. Moreover, the structure of the first wind deflector 110 and the second wind deflector 120 is simple, which is convenient for design and manufacture. By ensuring that the air outlet guide of the air outlet of the air duct has an initial air outlet angle α, the air outlet of the air duct is blown forward as straight as possible.

In some embodiments of the present invention, the air guide hole structure 100 further includes two vertically arranged side plates, and each side plate is connected to a same-side edge of the first air guide plate 110 and the second air guide plate 120 . The two side plates allow the airflow to blow forward through the air guide hole structure 100 without air leakage from both sides, so that the refrigeration effect of the refrigerating and freezing device 200 is better.

Specifically, the front edge of each side plate is vertically positioned directly below the front end of the first wind deflector 110 , and the lower edge of each side plate extends in a direction parallel to the upper surface of the second wind deflector 120 . The structure of the side plate is simple, which is convenient for design and manufacture.

The embodiment of the present invention also provides a refrigerating and freezing device 200 , as shown in FIG. 4 and FIG. 5 , the refrigerating and freezing device 200 includes a storage compartment 210 and an air supply structure. An air outlet 211 is disposed on a compartment wall of the storage compartment 210 . The air supply structure is configured to make part or all of the airflow flowing out of the air outlet 211 flow straight in a direction away from the compartment wall. For example, more than 80% of the airflow, that is, most of the airflow flows straight away from the compartment wall, preventing the cold wind from directly blowing the ingredients, providing a relatively high-humidity environment for the preservation of the ingredients, and improving the freshness of the ingredients.

In some embodiments of the present invention, as shown in FIG. 4 and FIG. 5 , the air supply structure includes a windshield 220 , and the windshield 220 is horizontally arranged in the storage compartment 210 and is located below the air outlet 211 to ensure that the wind flows out and blows out in the storage compartment 210 more smoothly, thereby freezing the food.

In some embodiments of the present invention, the air supply structure includes an air guide hole structure 100, and the air guide hole structure 100 is the air guide hole structure 100 in any of the above-mentioned embodiments. And the rear end of the first air deflector 110 is disposed at the upper edge of the air outlet 211 , and the rear end of the second air deflector 120 is disposed at the lower edge of the air outlet 211 . The wind on the upper edge of the air outlet 211 is directly blown into the lower surface of the first air deflector 110, so that the wind will not be blown to the top, and the wind on the lower edge of the air outlet 211 will not be directly blown downward due to the existence of the inclination angle α, so that the wind can be blown straight. Further, the width of the first wind deflector 110 may be greater than the width of the air outlet 211 .

In some embodiments of the present invention, as shown in FIG. 4 to FIG. 6 , a drawer 212 is disposed in the storage compartment 210 , and the drawer 212 is disposed below the air supply structure. There are multiple air outlets 211, which are arranged at the same height. The compartment wall is the rear wall of the storage compartment 210 . That is to say, the rear wall of the storage compartment 210 is provided with multiple air outlets 211 located at the same height. Then, as shown in FIG. 6 , the airflow flows down along the front wall of the drawer 212 in the storage compartment 210 to prevent the wind from directly blowing the ingredients, and provide a relatively high-humidity environment for the preservation of the ingredients, improving the preservation effect of the ingredients.

In other embodiments of the present invention, the compartment wall is a side wall of the storage compartment 210 . That is to say, the sidewall of the storage compartment 210 is provided with a plurality of air outlets 211, and is located at the same height, and each air outlet 211 is provided with an air supply structure, so that the airflow is blown straight toward the sidewall away from the storage compartment 210. Then, the airflow flows down along the other side wall of the storage compartment in the storage compartment 210 to prevent the wind from directly blowing the food, and can provide a relatively high humidity environment for food preservation, improving the freshness of the food.

In some preferred embodiments of the present invention, the air supply structure includes a wind deflector 220 and the air guide hole structure 100 in any of the above-mentioned embodiments. Further, the storage compartment 210 is a freezer or a refrigerator.

In some preferred embodiments of the present invention, there are multiple drawers 212, which are arranged sequentially along the up and down direction, and then multiple air supply structures and corresponding air outlets 211 are also arranged in the up and down direction, so that a relatively high-humidity environment can be provided for food preservation in each drawer 212, and the preservation effect of food materials can be improved. The straight air outlet can also effectively avoid the influence on the temperature in the drawer 212 arranged on the upper side or the lower side of the air outlet 211 .

So far, those skilled in the art should recognize that although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the disclosed content of the present invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

An air guide hole structure for a refrigerating and freezing device, comprising:

a first wind deflector, the first wind deflector is arranged horizontally;

The second wind deflector, the rear end of the second wind deflector is arranged directly below the rear end of the first wind deflector, and the second wind deflector extends upward from its rear end and forward to its front end, and the front end of the second wind deflector is located behind and below the front end of the first wind deflector.
The air guide hole structure according to claim 1, wherein,

The length of the first wind deflector along the front-rear direction is L, the distance between the front end of the upper surface of the second wind deflector and the lower surface of the first wind deflector is a, and the angle between the second wind deflector and the horizontal plane is α; and

α=arctan{[a*η+η(ξ-1)]/L}; where

η is the first setting coefficient, and η is 1.2 to 1.5; ξ is the second setting coefficient, and ξ is 1.5 to 3.
According to the wind guide hole structure described in claim 1,

It also includes two vertically arranged side plates, each side plate is connected to a same-side edge of the first wind deflector and the second wind deflector.
The air guide hole structure according to claim 1, wherein,

The extended surface of the upper surface of the second wind deflector passes through the first wind deflector;

The ratio of the length of the first wind deflector along the front-rear direction to the distance from the intersection line formed by the extension surface of the upper surface of the second wind deflector and the lower surface of the first wind deflector to the rear end of the first wind deflector is 1.2 to 1.5.
The air guide hole structure according to claim 1, wherein,

A ratio of the distance between the rear end of the upper surface of the second air deflector and the lower surface of the first air deflector to the distance between the front end of the upper surface of the second air deflector and the lower surface of the first air deflector is 1.5 to 3.
The air guide hole structure according to claim 3, wherein,

The front edge of each side plate is vertically arranged and located directly below the front end of the first wind deflector, and the lower edge of each side plate extends in a direction parallel to the upper surface of the second wind deflector.
A refrigerating and freezing device, comprising a storage compartment, the compartment wall of the storage compartment is provided with an air outlet, wherein the refrigerating and freezing device further includes an air supply structure, and the air supply structure is configured to make part or all of the airflow flowing out of the air outlet flow straight in a direction away from the compartment wall.
The refrigerator-freezer according to claim 7, wherein,

The air supply structure includes a wind deflector, and the wind deflector is horizontally arranged in the storage compartment and is located below the air outlet.
The refrigerator-freezer according to claim 7 or 8, wherein,

The air supply structure includes an air guide hole structure, and the air guide hole structure is the air guide hole structure described in any one of claims 1 to 5; and the rear end of the first air guide plate is arranged at the upper edge of the air outlet, and the rear end of the second air guide plate is arranged at the lower edge of the air outlet.
The refrigerator-freezer according to claim 7, wherein,

A drawer is arranged inside the storage room, and the drawer is arranged below the air supply structure;

There are multiple air outlets corresponding to the drawer, and the multiple air outlets corresponding to the drawer are arranged at the same height and arranged at intervals in the horizontal direction; there are multiple corresponding air supply structures;

The compartment wall is the rear wall or side wall of the storage compartment;

There are a plurality of drawers arranged in sequence along the up-down direction, and a plurality of the air supply structures and corresponding air outlets are also arranged correspondingly in the up-down direction.