Air vent structure for refrigeration and freezing equipment and refrigeration and freezing equipment

Abstract

This invention provides an air guide structure for a refrigeration and freezing device and the refrigeration and freezing device itself. The air guide structure includes: a first air guide plate, which is horizontally arranged; and a second air guide plate, the rear end of which is located directly below the rear end of the first air guide plate, and the second air guide plate extends upward and forward from its rear end to its front end, with the front end of the second air guide plate located below and behind the front end of the first air guide plate. The air guide structure guides air to flow in a straight line, preventing direct airflow onto the food, providing a relatively high humidity environment for food preservation, and improving the food's freshness.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of refrigeration and freezing devices, in particular to an air guiding hole structure for a refrigeration and freezing device and the refrigeration and freezing device. BACKGROUND

[0002] With the improvement of people's living standards, refrigeration and freezing devices have become necessities of family life, and people usually put food into refrigeration and freezing devices. Since the current refrigeration and freezing devices achieve food freezing through forced convection by a refrigeration fan, cold air is directly blown to the surface of food, taking away the original moisture on the surface of food, causing the food to dry, leading to an increase in the surface gap of food, and even the dry cracking of the corners, damaging the original cell structure of food, causing nutrient loss, and reducing the taste. SUMMARY

[0003] In view of the above problems, the present application is proposed to provide an air guiding hole structure for a refrigeration and freezing device and the refrigeration and freezing device to overcome the above problems or at least partially solve the above problems, by guiding the straight flow of air through the air guiding hole structure, preventing the direct blowing of air to food, providing a relatively high humidity environment for food preservation, and improving the freshness effect of food.

[0004] Specifically, the present application provides an air guiding hole structure for a refrigeration and freezing device, comprising:

[0005] a first air guiding plate, which is horizontally arranged;

[0006] a second air guiding plate, the rear end of which is arranged directly below the rear end of the first air guiding plate, and the second air guiding plate extends upwardly and forwardly from its rear end to its front end, and the front end of the second air guiding plate is located below and behind the front end of the first air guiding plate.

[0007] Optionally, the length of the first air guiding plate in the front-rear direction is L, the distance between the front end of the upper surface of the second air guiding plate and the lower surface of the first air guiding plate is a, and the angle between the second air guiding plate and the horizontal plane is α; and

[0008] α = arctan{[a * η + η (ξ - 1)] / L} wherein

[0009] η is a first set coefficient, η is 1.2 to 1.5; ξ is a second set coefficient, ξ is 1.5 to 3.

[0010] Optionally, the air guiding hole structure further comprises two vertically arranged side plates, each of which connects one same side edge of the first air guiding plate and the second air guiding plate.

[0011] Optionally, the extension of the upper surface of the second air guiding plate passes through the first air guiding plate.

[0012] The ratio of the length of the first deflector in the front-rear direction to the distance from the intersection of the extension of the upper surface of the second deflector and the lower surface of the first deflector to the rear end of the first deflector is 1.2 to 1.5.

[0013] Optionally, the ratio of the distance between the rear end of the upper surface of the second deflector and the lower surface of the first deflector to the distance between the front end of the upper surface of the second deflector and the lower surface of the first deflector is 1.5 to 3.

[0014] Optionally, the front end edge of each side plate is vertically arranged directly below the front end of the first deflector, and the lower edge of each side plate extends in a direction parallel to the upper surface of the second deflector.

[0015] The application also provides a refrigeration and freezing device, comprising:

[0016] A storage compartment, wherein a compartment wall of the storage compartment is provided with an air outlet;

[0017] An air supply structure, which 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.

[0018] Optionally, the air supply structure comprises a deflector plate, which is horizontally arranged in the storage compartment and located below the air outlet.

[0019] Optionally, the air supply structure comprises a deflector hole structure, which is any one of the deflector hole structures described above; and the rear end of the first deflector is arranged at the upper edge of the air outlet, and the rear end of the second deflector is arranged at the lower edge of the air outlet.

[0020] Optionally, a drawer is arranged in the storage compartment, and the drawer is arranged below the air supply structure.

[0021] The air outlet corresponding to the drawer is a plurality of air outlets, and the plurality of air outlets corresponding to the drawer are arranged at the same height and are arranged in the horizontal direction; and the air supply structure corresponding to the drawer is a plurality of air supply structures.

[0022] The compartment wall is the rear wall or the side wall of the storage compartment.

[0023] The drawer is a plurality of drawers arranged in the up-down direction, and the air supply structure and the corresponding air outlet are also arranged in multiple in the up-down direction.

[0024] The air outlet structure for the refrigeration and freezing device comprises a first air guide plate and a second air guide plate. The first air guide plate is horizontally arranged. The second air guide plate is arranged below the rear end of the first air guide plate. The second air guide plate extends upward and forward from the rear end to the front end. The front end of the second air guide plate is below the front end of the first air guide plate. The air blown from the upper edge of the air outlet is directly blown on the lower surface of the first air guide plate, so that the air is not blown upward. The air blown from the lower edge of the air outlet is blown forward and upward through the air guide effect of the second air guide plate. When the air flow reaches the lower surface of the first air guide plate, the air flow is blown forward and straight under the air guide effect of the front end of the first air guide plate. The air outlet structure can guide the air blown from the air outlet to be blown straight through the air outlet structure, prevent the cold air from being directly blown on the food, provide a relatively high humidity environment for the preservation of the food, and improve the preservation effect of the food.

[0025] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of some embodiments thereof, when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] Some embodiments of the present application will now be described in detail with reference to the accompanying drawings. Like reference numerals or characters denote like elements throughout the drawings. It should be understood that these drawings are not necessarily to scale. In the drawings:

[0027] Figure 1 is a schematic structural view of an air outlet structure for a refrigeration and freezing device according to an embodiment of the present application;

[0028] Figure 2 is a schematic partial structural view of an air outlet structure for a refrigeration and freezing device according to an embodiment of the present application;

[0029] Figure 3 is a schematic structural view of an air outlet structure for a refrigeration and freezing device according to an embodiment of the present application;

[0030] Figure 4 is a schematic side view of a refrigeration and freezing device according to an embodiment of the present application;

[0031] Figure 5 is a schematic front view of a refrigeration and freezing device according to an embodiment of the present application;

[0032] Figure 6 is a schematic air flow diagram of a refrigeration and freezing device according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] Reference will now be made to Figures 1 to 6The air outlet structure for a refrigerating-freezing appliance and the refrigerating-freezing appliance according to the embodiments of the present application will be described. In the description of the embodiments, it is to be understood that the terms "first", "second", "third" and the like, "antecedent" and "consequent", if and unless explicitly described to the contrary, are used to distinguish only between similar objects or steps referring to a same object and not to denote a precedence or sequence thereof over the other or others. In the description of the embodiments, the term "comprising" or "containing" means "including but not limited to", "having" or "including". The term "consisting essentially of" means "including normal, inherent variations of the materials or process employed, but excluding additional components of the same sort as used in the more restrictive term "consisting of". The term "consisting of" means "including, and limited to". The term "plurality" means at least two, for example, two, three or more, unless expressly specified otherwise.

[0034] Unless otherwise defined, the terms "mounting", "connected", "connecting", "fixed", "coupling" and the like are to be construed as broad terms, for example, they can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements, or interaction relationship between two elements, unless otherwise explicitly defined. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0035] In addition, in the description of the embodiments, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. That is, in the description of the embodiments, the first feature "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is higher in horizontal height than the second feature. The first feature "below", "under" or "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower in horizontal height than the second feature.

[0036] In the description of the embodiments, the description with reference to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the description, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] Figure 1is a schematic structural view of an air outlet structure for a refrigeration and freezing device according to an embodiment of the present application, as Figure 1 shown and with reference to Figure 2 and Figure 3 , an air outlet structure for a refrigeration and freezing device is provided. The air outlet structure 100 comprises a first air guide plate 110 and a second air guide plate 120. The first air guide plate 110 is horizontally arranged. The rear end of the second air guide plate 120 is arranged directly below the rear end of the first air guide plate 110, and the second air guide plate 120 extends upwardly and forwardly from its rear end to its front end, with the front end of the second air guide plate 120 being located below and behind the front end of the first air guide plate 110.

[0038] The air along the upper edge of the air outlet 211 directly blows onto the lower surface of the first air guide plate 110, so that the air is not blown upwardly. The air along the lower edge of the air outlet 211 is blown forwardly and upwardly by the guiding effect of the second air guide plate 120, and after the air flow reaches the lower surface of the first air guide plate 110, the air flow is blown straight forwardly by the guiding effect of the front end of the first air guide plate 110. In the air outlet structure 100 provided by the embodiment of the present application, the cold air blown from the air outlet 211 is blown straightly by the guiding effect of the first air guide plate 110 and the second air guide plate 120, so that the cold air is prevented from directly blowing onto the food, and a relatively high-humidity environment is provided for the preservation of the food, thereby improving the preservation effect of the food.

[0039] In some embodiments of the present application, as Figures 1 to 3 shown, the extension of the upper surface of the second air guide plate 120 passes through the first air guide plate 110. That is, the length of the first air guide plate 110 along the front-rear direction is greater than the length of the second air guide plate 120 along the front-rear direction, so that the air blown from the lower edge of the air outlet 211 is blown upwardly and forwardly along the upper surface of the second air guide plate 120, and is blown straightly forwardly by the guiding effect of the first air guide plate 110. The ratio of the length of the first air guide plate 110 along the front-rear direction to the distance from the intersection line between the extension of the upper surface of the second air guide plate 120 and the lower surface of the first air guide plate 110 to the rear end of the first air guide plate 110 is 1.2 to 1.5. As Figure 2 shown, the length of the first air guide plate 110 along the front-rear direction is L, the distance from the intersection line between the extension of the upper surface of the second air guide plate 120 and the lower surface of the first air guide plate 110 to the rear end of the first air guide plate 110 is C, and L = η * C, where η is a first specified coefficient, and η is 1.2 to 1.5.

[0040] In some embodiments of the present application, the ratio of the distance between the rear end of the upper surface of the second air guide plate 120 and the lower surface of the first air guide plate 110 to the distance between the front end of the upper surface of the second air guide plate 120 and the lower surface of the first air guide plate 110 is 1.5 to 3. As Figure 2As shown, 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 a second setting coefficient, and ξ is 1.5 to 3. The value of a is given by a designer according to the specific requirements of 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 air deflector 120 and the rear end of the second air deflector 120 in the horizontal direction is D, and D = (A-a) * cot α.

[0041] In some embodiments of the present application, as shown in Figure 2 As shown, the length of the first air deflector 110 in the front-rear direction is L, 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 the angle between the second air deflector 120 and the horizontal plane is α. And α = arctan{[a*η+η(ξ-1)] / L}; where η is a first setting coefficient, and η is 1.2 to 1.5; ξ is a second setting coefficient, and ξ is 1.5 to 3.

[0042] As can be seen from the above formula, the angle α between the second air deflector 120 and the horizontal plane is only related to the variable a, so that by changing the distance a between the front end of the upper surface of the second air deflector 120 and the lower surface of the first air deflector 110, the size of the angle α between the second air deflector 120 and the horizontal plane can be controlled. And the structure of the first air deflector 110 and the second air deflector 120 is simple, which is convenient for design and manufacture. By ensuring that the air outlet of the air duct has an initial air outlet angle α, the air outlet of the air duct is as straight as possible.

[0043] In some embodiments of the present application, the air deflector hole structure 100 further comprises two vertically arranged side plates, each of which is connected to one same side edge of the first air deflector 110 and the second air deflector 120. The two side plates make the air flow forward through the air deflector hole structure 100 without leaking from the sides, so that the refrigeration effect of the refrigeration and freezing device 200 is better.

[0044] Specifically, the front edge of each side plate is vertically arranged directly below the front end of the first air deflector 110, and the lower edge of each side plate extends in a direction parallel to the upper surface of the second air deflector 120. The structure of the side plate is simple and convenient for design and manufacture.

[0045] The present application also provides a refrigeration and freezing device 200, as shown in Figure 4 and Figure 5As shown, the refrigeration and freezing device 200 comprises a storage compartment 210 and an air supply structure. The air outlet 211 is arranged on the 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 horizontally away from the compartment wall. For example, more than 80% of the airflow, i.e. most of the airflow, flows horizontally away from the compartment wall, preventing cold air from directly blowing on the food, providing a relatively high-humidity environment for the preservation of the food, and improving the preservation effect of the food.

[0046] In some embodiments of the present application, as shown in Figure 4 and Figure 5 As shown, the air supply structure comprises a wind baffle 220, which is horizontally arranged in the storage compartment 210 and located below the air outlet 211, ensuring that the air flows out of the storage compartment 210 more smoothly and horizontally, thereby freezing the food.

[0047] In some embodiments of the present application, the air supply structure comprises the air guide hole structure 100, which is the air guide hole structure 100 in any of the above embodiments. The rear end of the first air guide plate 110 is arranged at the upper edge of the air outlet 211, and the rear end of the second air guide plate 120 is arranged at the lower edge of the air outlet 211. The air along the upper edge of the air outlet 211 is directly blown into the lower surface of the first air guide plate 110, so that the air is not blown upwards. The air along the lower edge of the air outlet 211 is not directly blown downwards due to the existence of the inclination angle α, thereby ensuring that the air can be blown out horizontally. Further, the width of the first air guide plate 110 can be greater than the width of the air outlet 211.

[0048] In some embodiments of the present application, as shown in Figures 4 to 6 As shown, a drawer 212 is arranged in the storage compartment 210, and the drawer 212 is arranged below the air supply structure. The air outlet 211 is arranged in multiple numbers at the same height. The compartment wall is the rear wall of the storage compartment 210. That is, the rear wall of the storage compartment 210 is provided with multiple air outlets 211 at the same height, and each air outlet 211 is provided with an air supply structure, so that the airflow is blown horizontally away from the rear wall of the storage compartment 210. Then, as shown in Figure 6 The airflow flows downward along the front wall of the drawer 212 in the storage compartment 210, preventing the air from directly blowing on the food, and providing a relatively high-humidity environment for the preservation of the food, thereby improving the preservation effect of the food.

[0049] In some preferred embodiments of the present application, the air supply structure comprises a baffle 220 and the air guide hole structure 100 in any of the above embodiments. Further, the storage compartment 210 is a freezing compartment or a refrigerating compartment.

[0050] In some preferred embodiments of the present application, the air supply structure comprises a baffle 220 and the air guide hole structure 100 in any of the above embodiments. Further, the storage compartment 210 is a freezing compartment or a refrigerating compartment.

[0051] In some preferred embodiments of the present application, the drawers 212 are multiple and arranged in sequence in the up-down direction, and the air supply structure and the corresponding air outlets 211 are also multiple in the up-down direction, so that a relatively high humidity environment can be provided for the food preservation in each drawer 212, improving the preservation effect of the food. The flat air outlet can also effectively avoid the influence on the temperature in the drawer 212 arranged above or below the air outlet 211.

[0052] At this point, those skilled in the art should recognize that, although the present application has been shown and described in detail in the above embodiments, many other variations or modifications can be directly determined or deduced from the disclosure of the present application in accordance with the principles of the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variations or modifications.

Claims

1. An air outlet structure for a refrigerating-freezing appliance, characterized in that, Comprising: a first air deflector, which is horizontally arranged; a second air deflector, the rear end of which is arranged directly below the rear end of the first air deflector, and the second air deflector extends upwardly and forwardly from its rear end to its front end, the front end of the second air deflector being located below and behind the front end of the first air deflector; The length of the first deflector in the front-rear direction is L, the distance between the front end of the upper surface of the second deflector and the lower surface of the first deflector is a, and the angle between the second deflector and the horizontal plane is ; and ; wherein is a first set coefficient, is 1.2 to 1.5; is a second set coefficient, is 1.5 to 3.

2. The air deflector structure according to claim 1, wherein two vertically arranged side plates are further included, each of the side plates connecting a same-side edge of the first air deflector and the second air deflector.

3. The air deflector structure according to claim 1, wherein an extension of the upper surface of the second air deflector passes through the first air deflector; a ratio of a length of the first air deflector in the front-rear direction to a distance from the intersection of the extension of the upper surface of the second air deflector and the lower surface of the first air deflector to the rear end of the first air deflector is 1.2 to 1.

5.

4. The air deflector structure according to claim 1, wherein a ratio of a distance between the rear end of the upper surface of the second air deflector and the lower surface of the first air deflector to a 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.

5. The air deflector structure according to claim 2, wherein a front end edge of each of the side plates is vertically arranged, located directly below the front end of the first air deflector, and a lower edge of each of the side plates extends in a direction parallel to the upper surface of the second air deflector.

6. A cold storage device comprising a storage compartment, a compartment wall of the storage compartment being provided with an air outlet, characterized in that an air supply structure is further included, which is configured to make part or all of the airflow flowing out of the air outlet flow horizontally away from the compartment wall; the air supply structure includes the air deflector structure according to any one of claims 1 to 5; and the rear end of the first air deflector is arranged at the upper edge of the air outlet, and the rear end of the second air deflector is arranged at the lower edge of the air outlet.

7. The refrigeration and freezing device according to claim 6, wherein the air supply structure includes a baffle, which is horizontally arranged in the storage compartment and located below the air outlet.

8. The refrigeration and freezing device according to claim 6, wherein a drawer is arranged in the storage compartment, and the drawer is arranged below the air supply structure; a plurality of air outlets corresponding to the drawer are arranged, the plurality of air outlets corresponding to the drawer are arranged at the same height and are arranged in the horizontal direction; a plurality of air supply structures corresponding to the air outlets are arranged; the compartment wall is a rear wall or a side wall of the storage compartment; a plurality of drawers are arranged in sequence in the up-down direction, and the air supply structures and the corresponding air outlets are also arranged in sequence in the up-down direction.

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