Refrigerator

Abstract

The utility model relates to the technical field of refrigeration equipment, in particular to a refrigerator. The refrigerator comprises a refrigerator body and a partition plate, a refrigeration air duct and a storage cavity are arranged in the refrigerator body, the storage cavity is divided into at least two storage cavities in the first direction, the partition plate is arranged in the storage cavity and extends in the first direction, a distribution cavity is defined by the partition plate and the inner wall of the storage cavity, and the distribution cavity communicates with the refrigeration air duct; cold air in the refrigeration air duct can enter the distribution cavity; and in the first direction, the partition plate is provided with at least two open pore areas, each open pore area corresponds to one storage space, a plurality of circulation holes communicating the distribution cavity with the corresponding storage space are formed in the at least two open pore areas, and the flow speeds of cold air in the circulation holes in the at least two open pore areas are different. Thus, through the at least two opening areas on the partition plate, cold air flowing out of the refrigeration air duct is distributed in the distribution cavity and enters the storage spaces corresponding to the opening areas, and therefore differential air supply to the at least two storage spaces is achieved.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, and in particular to a refrigerator. Background Technology

[0002] Refrigerators typically have multiple storage compartments, and the cold air circulation created by the cooling ducts can keep different items fresh in separate zones. Current cooling ducts usually deliver air directly to each storage compartment through vents to achieve low-temperature preservation. However, this method cannot create different cooling effects based on the items placed in different compartments, potentially leading to localized overcooling or slow cooling, which could damage stored items or result in ineffective cooling. Utility Model Content

[0003] Therefore, it is necessary to provide a refrigerator that can meet the differentiated air supply needs of different storage spaces.

[0004] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0005] A refrigerator includes a cabinet, wherein a cooling air duct and a storage cavity are provided inside the cabinet, and the storage cavity is divided into at least two storage spaces in a first direction;

[0006] The refrigerator also includes a partition, which is disposed in the storage cavity and extends along the first direction and forms a distribution cavity with the inner wall of the storage cavity. The distribution cavity is connected to the refrigeration duct so that the cold air in the refrigeration duct can enter the distribution cavity.

[0007] Along the first direction, the partition is provided with at least two opening areas, each opening area corresponding to a storage space. Each of the at least two opening areas is provided with multiple flow holes that connect the distribution cavity and the corresponding storage space. Furthermore, the flow rates of cold air in the flow holes of the at least two opening areas are different.

[0008] Understandably, this application uses a partition with at least two openings, each corresponding to a storage space, where the airflow velocities within the openings differ. This results in a faster heat exchange rate for the storage space corresponding to the opening with the higher flow rate, leading to a more noticeable cooling effect and making it suitable for storing items requiring rapid cooling. Conversely, the storage space corresponding to the opening with the lower flow rate has a slower heat exchange rate, allowing it to store items that do not require rapid cooling, thus preventing localized overcooling. In essence, the at least two openings on the partition distribute the cold air flowing from the cooling duct within the distribution chamber and into the corresponding storage spaces, achieving differentiated airflow to the at least two storage spaces.

[0009] In one embodiment, at least two of the opening regions are configured as a first opening region and a second opening region. Along the thickness of the partition and in the direction from the dispensing cavity to the storage cavity, the diameter of the flow hole in the first opening region gradually decreases, while the diameter of the flow hole in the second opening region remains unchanged.

[0010] Understandably, the gradually decreasing aperture of the flow holes in the first zone increases the airflow velocity through it, thereby increasing the cooling rate of items in the corresponding storage space. Meanwhile, the aperture of the flow holes in the second zone remains unchanged, ensuring that the cooling rate of items in the corresponding storage space is less than that in the corresponding storage space of the first zone. This allows the different cooling needs of at least two storage spaces to be met, enabling users to choose different storage spaces based on their cooling requirements.

[0011] In one embodiment, the flow holes in the first hole region are arranged in a funnel shape.

[0012] In one embodiment, the number of flow holes in the first aperture region is equal to the number of flow holes in the second aperture region.

[0013] It is understandable that the number of flow holes in the first and second hole areas is equal. This ensures that the cold air enters the storage space relatively evenly from the partition, while also making the total amount of cold air passing through the first and second hole areas in the same amount of time similar. This avoids uneven temperature distribution in the storage cavity, which would affect the cooling effect.

[0014] In one embodiment, at least two of the opening regions are configured as a first opening region and a second opening region. Along the thickness of the partition and in the direction from the dispensing cavity to the storage cavity, the diameter of the flow hole in the first opening region gradually decreases, and the diameter of the flow hole in the second opening region gradually increases.

[0015] It is understandable that by gradually reducing the diameter of the flow holes in the first hole area and gradually increasing the diameter of the flow holes in the second hole area, the cooling rate of items in the storage space corresponding to the second hole area can be reduced compared to the cooling rate of items in the storage space corresponding to the first hole area. This allows for differentiated air supply, providing two different storage spaces to meet different user storage needs.

[0016] In one embodiment, along the first direction, the first aperture region is positioned above the second aperture region.

[0017] In one embodiment, the density of the flow holes in at least two of the opening regions is the same.

[0018] Understandably, having the same density of flow holes in at least two opening areas can further prevent uneven temperature distribution throughout the storage cavity and improve overall air supply efficiency.

[0019] In one embodiment, the aperture density of the aperture region is Φ1, 0.15≤Φ1≤0.25.

[0020] Understandably, setting the density of the perforation zone within the range of 0.15 to 0.25 can prevent the difference in air supply between different perforation zones from being reduced due to excessive perforation density, or the situation where cold air is dispersed and concentrated in the storage cavity due to excessive perforation density, thus affecting the differentiated cooling effect of different storage spaces and the overall cooling effect of the refrigerator.

[0021] In one embodiment, the plurality of flow holes are arranged in a rectangular array.

[0022] Understandably, the arrangement of the rectangular array of flow holes can improve the uniformity of cold air distribution within the storage cavity, avoiding localized overcooling or overheating, which would affect the preservation quality of the items.

[0023] In one embodiment, the cooling duct has an air outlet and a return air outlet, the air outlet being connected to the distribution cavity, and the return air outlet being located at the top of the storage cavity along the height direction of the housing.

[0024] It is understandable that connecting the air outlet to the distribution chamber allows the circulating cold air from the cooling duct to be distributed and flow out through the distribution chamber and partitions, thereby preventing the cold air at the air outlet from affecting the heat exchange rate of items in each storage space, so as to better meet the different cooling needs of different storage spaces.

[0025] Compared to existing technologies, the refrigerator features a partition with at least two openings, each corresponding to a storage space. The flow rates of cold air within the openings of these two openings differ. This results in a faster heat exchange rate for the storage space corresponding to the opening with the higher flow rate, leading to a more significant cooling effect and making it suitable for items requiring rapid cooling. Conversely, the storage space corresponding to the opening with the lower flow rate has a slower heat exchange rate, allowing it to hold items that do not require rapid cooling, thus preventing localized overcooling. In essence, the at least two openings on the partition distribute the cold air flowing from the cooling duct within the distribution chamber, allowing it to enter the corresponding storage spaces, thereby achieving differentiated airflow to the at least two storage spaces. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a structural diagram of the refrigerator provided in this application.

[0028] Figure 2 A schematic cross-sectional view of the partition in a first direction in one embodiment provided in this application.

[0029] Figure 3 A schematic diagram of the partition structure in another embodiment provided in this application.

[0030] Figure 4 Provided for this application Figure 3 A schematic diagram of the cross-sectional structure at point AA.

[0031] The component labels are as follows:

[0032] 100. Refrigerator; 10. Cabinet; 11. Refrigeration duct; 111. Air outlet; 112. Air return outlet; 113. Evaporator; 12. Storage cavity; 121. Storage space; 20. Shelf; 21. Opening area; 211. First opening area; 212. Second opening area; 22. Flow hole; 30. Distribution cavity. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] It should be noted that when a structure is referred to as being "fixed to" or "set on" another structure, it can be directly on the other structure or there may be an intermediate structure. When a structure is considered to be "connected" to another structure, it can be directly connected to the other structure or there may be an intermediate structure. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0038] Please see Figures 1 to 4This application provides a refrigerator 100, which includes a cabinet 10, a cooling air duct 11 and a storage cavity 12 disposed inside the cabinet 10. The storage cavity 12 is divided into at least two storage spaces 121 in a first direction x. The refrigerator 100 also includes a partition 20, which is disposed in the storage cavity 12 and extends along the first direction x, forming a distribution cavity 30 with the inner wall of the storage cavity 12. The distribution cavity 30 is connected to the cooling air duct 11 so that cold air in the cooling air duct 11 can enter the distribution cavity 30. Along the first direction x, the partition 20 is provided with at least two opening areas 21, each opening area 21 corresponding to a storage space 121. Each of the at least two opening areas 21 is provided with a plurality of flow holes 22 connecting the distribution cavity 30 and the corresponding storage space 121. Furthermore, the flow rate of cold air in the flow holes 22 in the at least two opening areas 21 is different.

[0039] It needs to be explained that the refrigerator 100 mainly maintains a continuous low temperature by circulating cold air within the cabinet 10 through the refrigeration air duct. In the existing refrigerator 100, the cold air typically flows out from the air outlet 111 of the refrigeration air duct 11 and directly into the storage cavity 12 within the cabinet 10. After passing through the storage cavity 12, it returns to the refrigeration air duct through the return air inlet 112 of the refrigeration air duct 11. However, because the cold air entering the storage cavity 12 flows out from the same air outlet 111, its flow rate is the same, making it impossible to simultaneously meet the user's multiple cooling needs. Therefore, this application sets up a partition 20, which forms a distribution cavity 30 between the partition 20 and the inner wall of the storage cavity 12. This allows the cold air in the cooling duct 11 to first enter the distribution cavity 30 for distribution before entering the storage cavity 12, thus improving the dispersion of the airflow from the cooling duct 11. At the same time, at least two opening areas 21 are set on the partition 20, with each opening area 21 corresponding to a storage space 121. The flow velocities of the cold air in the flow holes 22 within the at least two opening areas 21 are different. According to the principle of heat transfer, the heat exchange rate q = heat transfer coefficient h × heat transfer area A × temperature difference Δt. When the temperature difference between the distribution cavity 30 and the storage cavity 12 is constant, an increase in wind speed will enhance the disturbance between the fluid and the surface, thin the thermal boundary layer, and thus improve the heat transfer coefficient h. Therefore, the storage space 121 corresponding to the opening area 21 with a larger flow rate orifice 22 has a faster heat exchange rate, and the cooling effect in the storage space 121 is more obvious, so it can hold items that need to be cooled quickly; while the storage space 121 corresponding to the opening area 21 with a smaller flow rate orifice 22 has a slower heat exchange rate, so it can hold items that do not need to be cooled quickly, and can avoid local overcooling. That is, through at least two opening areas 21 on the partition 20, the storage spaces 121 corresponding to different opening areas 21 have different cooling effects, thereby meeting the various cooling needs of users.

[0040] Here, the number of flow holes 22 in each opening area 21 can be set to twenty, forty, eighty, or one hundred. Of course, it is not limited to this; the specific number of flow holes 22 in each opening area 21 can be determined according to the actual situation.

[0041] like Figure 1 As shown, the cooling duct 11 has an air outlet 111 and a return air outlet 112. The air outlet 111 is connected to the distribution chamber 30 along the height direction of the housing 10 (the same direction as the first direction x). The return air outlet 112 is located at the top of the storage chamber 12, and the air outlet 111 is located below the return air outlet 112 and close to the bottom of the storage chamber 12. In this way, after the cold air from the cooling duct 11 flows out of the air outlet 111, it can first enter the distribution chamber 30 for distribution, and then enter the storage chamber 12 through the partition 20, so as to improve the dispersion of cold air in the storage chamber 12 and avoid the situation of local overcooling or insufficient cold air in the storage chamber 12, which would affect the cooling effect.

[0042] Here, an evaporator 113 is also installed in the cooling duct 11 to exchange heat inside the cabinet 10 to the outside of the cabinet 10, so as to ensure a low temperature environment inside the cabinet 10.

[0043] Preferably, the perforation density of the perforation area 21 is Φ1, 0.15≤Φ1≤0.25. It is understood that an excessively high perforation density will result in smaller differences in airflow between different perforation areas 21, affecting the differentiated airflow effect. Conversely, an excessively low perforation density will cause the cold air entering the storage cavity 12 to be too concentrated and unable to disperse, leading to localized overcooling and affecting the cooling effect. Therefore, the perforation density of the perforation area 21 is set to Φ1, 0.15≤Φ1≤0.25 to avoid the aforementioned situations.

[0044] Here, the aperture density Φ1 of the aperture region 21 can be 0.15, 0.17, 0.2, 0.22, 0.25, etc. The specific value of the aperture density Φ1 of the aperture region 21 can be determined according to the actual situation. In this embodiment, the aperture density Φ1 of the aperture region 21 is 0.2.

[0045] In one embodiment, the number of opening areas 21 can be two, three, or four. Here, the number of opening areas 21 can be configured according to the number of storage spaces 121 or usage requirements.

[0046] It should be explained that in this embodiment, the structure and principle are specifically illustrated by setting two opening areas 21.

[0047] like Figure 2As shown, the two opening areas 21 are configured as a first opening area 211 and a second opening area 212. Along the thickness y of the partition 20 and in the direction from the distribution cavity 30 to the storage cavity 12, the diameter of the flow hole 22 in the first opening area 211 gradually decreases, while the diameter of the flow hole 22 in the second opening area 212 remains unchanged. It can be understood that the gradually decreasing diameter of the flow hole 22 in the first opening area 211 increases the airflow velocity through it, thereby increasing the cooling rate of items in the corresponding storage space 121. Conversely, the unchanged diameter of the flow hole 22 in the second opening area 212 ensures that the cooling rate of items in the corresponding storage space 121 is less than that in the corresponding storage space 121. This satisfies the different cooling needs of the two storage spaces 121, allowing users to select the appropriate storage space 121 based on their cooling requirements.

[0048] Here, the flow holes 22 in the first hole area 211 are arranged in a funnel shape. It can be understood that the funnel shape allows the cold air flowing through the flow holes 22 to enter the corresponding storage space 121 without obstruction, thereby improving the air supply efficiency.

[0049] Preferably, the number of flow holes 22 in the first hole area 211 is equal to the number of flow holes 22 in the second hole area 212, so that the uniformity of cold air distribution in the storage space 121 can be improved by having the first hole area 211 and the second hole area 212 with an equal number of flow holes 22, and the total amount of cold air passing through the first hole area 211 and the second hole area 212 can be made as similar as possible, so as to avoid uneven temperature in various parts of the storage cavity 12, which would affect the cooling effect.

[0050] In another embodiment, such as Figure 3 and Figure 4 As shown, the two opening areas 21 are configured as a first opening area 211 and a second opening area 212. Along the thickness y of the partition 20 and in the direction from the distribution cavity 30 to the storage cavity 12, the diameter of the flow hole 22 in the first opening area 211 gradually decreases, and the diameter of the flow hole 22 in the second opening area 212 gradually increases. Thus, when cold air passes through the first hole area 211, the gradually decreasing aperture increases the airflow velocity, allowing the cold air to quickly reach the corresponding storage space 121 and meet the rapid cooling requirement of that storage space 121. When cold air passes through the second hole area 212, the gradually increasing aperture slows down the airflow velocity. The slowed-down airflow can be more evenly dispersed after entering the storage space 121 corresponding to the second hole area 212, thus avoiding local overcooling caused by excessive airflow velocity. At the same time, it also ensures that all parts of the storage space 121 are exposed to sufficient cold air, preventing areas with insufficient cooling and better maintaining the temperature stability of that area, which is beneficial for extending the shelf life of food.

[0051] Here, along the first direction x, the first hole region 211 is located above the second hole region 212.

[0052] In one embodiment, the density of the flow holes 22 in the two opening areas 21 is the same. This further increases the uniformity of cold air dispersion and improves the overall air supply efficiency.

[0053] Preferably, the multiple flow holes 22 are arranged in a rectangular array to improve the uniformity of cold air distribution in the storage cavity and avoid local overcooling or overheating, which would affect the preservation quality of the items.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A refrigerator, comprising a cabinet (10), wherein a cooling air duct (11) and a storage cavity (12) are provided in the cabinet (10), and the storage cavity (12) is divided into at least two storage spaces (121) in a first direction. Its features are, The refrigerator also includes a partition (20), which is disposed in the storage cavity (12) and extends along the first direction and forms a distribution cavity (30) with the inner wall of the storage cavity (12). The distribution cavity (30) is connected to the refrigeration duct (11) so that the cold air in the refrigeration duct (11) can enter the distribution cavity (30). Along the first direction, the partition (20) is provided with at least two opening areas (21), each opening area (21) corresponds to a storage space (121), and each of the at least two opening areas (21) is provided with a plurality of flow holes (22) that connect the distribution cavity (30) and the corresponding storage space (121), and the flow rates of cold air in the flow holes (22) of the at least two opening areas (21) are different.

2. The refrigerator according to claim 1, characterized in that, At least two of the opening areas (21) are configured as a first opening area (211) and a second opening area (212). Along the thickness of the partition (20) and in the direction from the distribution cavity (30) to the storage cavity (12), the diameter of the flow hole (22) in the first opening area (211) gradually decreases, while the diameter of the flow hole (22) in the second opening area (212) remains unchanged.

3. The refrigerator according to claim 2, characterized in that, The flow hole (22) in the first hole area (211) is arranged in a funnel shape.

4. The refrigerator according to claim 2, characterized in that, The number of flow holes (22) in the first orifice region (211) is equal to the number of flow holes (22) in the second orifice region (212).

5. The refrigerator according to claim 1, characterized in that, At least two of the opening areas are configured as a first opening area (211) and a second opening area (212). Along the thickness of the partition (20) and in the direction from the distribution cavity (30) to the storage cavity (12), the diameter of the flow hole (22) in the first opening area (211) gradually decreases, and the diameter of the flow hole (22) in the second opening area (212) gradually increases.

6. The refrigerator according to claim 4, characterized in that, Along the first direction, the first hole region (211) is located above the second hole region (212).

7. The refrigerator according to any one of claims 1 to 6, characterized in that, The density of the flow holes (22) in at least two of the opening regions (21) is the same.

8. The refrigerator according to claim 7, characterized in that, The opening density of the opening area (21) is Φ1, 0.15≤Φ1≤0.

25.

9. The refrigerator according to claim 1, characterized in that, The multiple flow holes (22) are arranged in a rectangular array.

10. The refrigerator according to claim 1, characterized in that, The cooling duct (11) has an air outlet (111) and a return air outlet (112). The air outlet (111) is connected to the distribution cavity (30). Along the height direction of the box (10), the return air outlet (112) is located at the top of the storage cavity (12).

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