Refrigeration equipment

Abstract

The refrigeration equipment comprises an inner container and an evaporation pipe wound around the periphery of the inner container, a storage chamber with an opening is defined by the inner container, and the refrigeration equipment further comprises a temperature equalizing module and an air return part which are arranged in the storage chamber; a heat exchange channel is formed between the air return piece and the inner container; the temperature equalizing module comprises a shell and an air duct formed in the shell, and the heat exchange channel, the air duct and the storage chamber are communicated in sequence and form a circulating air path; the inner container comprises a first wall, the first wall extends in the second direction perpendicular to the first direction, the air return piece is arranged on the first wall, the first direction is opposite to the opening direction of the storage chamber, and the size ratio of the heat exchange channel to the first wall in the second direction is 1 / 6-2 / 3. According to the invention, the uniformity of cold distribution in the storage chamber can be improved; and the temperature equalizing effect is further enhanced by controlling the size ratio of the heat exchange channel to the first wall in the second direction.

Description

Technical Field

[0001] The present application relates to the field of refrigeration technology, in particular to refrigeration equipment. Background Art

[0002] Refrigeration equipment is used to store and preserve vegetables, food, beverages and other items due to its refrigeration function, and is widely used in stores, supermarkets and homes.

[0003] Direct cooling is a commonly used cooling method for refrigeration equipment. By wrapping the evaporator tube outside the inner tank, the cold is transferred to the storage room of the inner tank by natural radiation. However, direct cooling can easily cause uneven distribution of cold in the storage room. The area close to the inner tank has sufficient cold and the temperature is lower, while the areas far from the inner tank, such as the area near the door body, have relatively less cold and the temperature is higher. Especially for refrigeration equipment with a larger volume, the opening of its storage room must be relatively large, and the area far from the inner tank is also relatively large. The temperature distribution uniformity in the storage room is worse, and the temperature of each area in the storage room varies greatly. There are also some refrigeration devices with storage baskets near the door body, and the cooling needs of items stored in the refrigeration device are difficult to meet. Summary of the invention

[0004] The purpose of the present application is to provide a refrigeration device to solve the problem of poor uniformity of indoor temperature distribution in a storage room of a refrigeration device.

[0005] To achieve one of the above-mentioned purposes of the utility model, an embodiment of the present application provides a refrigeration device, comprising an inner tank and an evaporation tube wound around the outer periphery of the inner tank, the inner tank defining a storage compartment with an opening, the refrigeration device further comprising a temperature equalization module and an air return member arranged in the storage compartment;

[0006] The air return member is connected to the inner tank and a heat exchange channel is formed between the two;

[0007] The temperature equalization module comprises a shell and an air duct formed in the shell, and the heat exchange channel, the air duct and the storage compartment are sequentially connected to form a circulating air path;

[0008] The inner tank includes a first wall, which extends in a second direction perpendicular to the first direction. The return air component is arranged on the first wall. The first direction is opposite to the opening direction of the storage compartment. The ratio of the size of the heat exchange channel to the first wall in the second direction is 1 / 6 to 2 / 3.

[0009] As a further improvement of an embodiment of the present application, the air return member extends along the second direction, and the heat exchange channel extends along the second direction.

[0010] As a further improvement of an embodiment of the present application, a pair of first walls are provided, and the pair of first walls are arranged opposite to each other along a third direction, and the third direction is perpendicular to the first direction and the second direction. A pair of return air parts are provided, and the pair of return air parts are respectively arranged on a pair of first walls, and the temperature equalizing module is respectively connected to the pair of return air parts.

[0011] As a further improvement of one embodiment of the present application, the inner liner also includes a pair of second walls arranged opposite to each other along the second direction, each first wall is respectively connected to the pair of second walls, and the size of the first wall along the second direction is larger than the size of the second wall along the second direction.

[0012] As a further improvement of an embodiment of the present application, the heat exchange channel includes a pair of sub-channels connected to each other, the pair of sub-channels are respectively located on both sides of the temperature equalizing module, the sub-channel has an upper edge close to the opening of the storage compartment and a lower edge away from the opening of the storage compartment, the temperature equalizing module is provided with an air outlet close to the opening of the storage compartment, and an air guide is provided at one end of the air outlet away from the opening of the storage compartment, and a line connecting the midpoint of the upper edge and the midpoint of the lower edge intersects with the plane where the air guide slope of the air guide is located.

[0013] As a further improvement of an embodiment of the present application, the refrigeration equipment also includes a basket arranged in the storage room, the basket is located between the temperature equalizing module and the inner tank, and the plane where the air guide slope of the air guide member is located intersects with the opening of the basket.

[0014] As a further improvement of an embodiment of the present application, the return air component is provided with a return air port, the inner tank also includes a third wall arranged opposite to the opening of the storage compartment, and the distance between the return air port and the third wall is 10 to 40 cm.

[0015] As a further improvement of an embodiment of the present application, the return air component includes a cover plate and a pair of first side panels, the cover plate is parallel to the first wall, the first side panel extends along the first direction, the pair of first side panels are relatively arranged along the second direction, and the first side panel connects the cover plate and the first wall, the return air outlet includes a first return air outlet arranged on the first side panel, and the distance between the first return air outlet and the third wall is 10 to 40 cm.

[0016] As a further improvement of one embodiment of the present application, the return air component includes a cover plate and a second side plate, the cover plate is parallel to the first wall, the second side plate is arranged at one end of the cover plate close to the third wall, and the second side plate connects the cover plate and the first wall, the return air outlet includes a second return air outlet arranged on the second side plate, and the distance between the second return air outlet and the third wall is 10 to 40 cm.

[0017] As a further improvement of an implementation manner of the present application, a distance between an end of the air return member away from the third wall and the third wall is ≤40 cm.

[0018] Compared with the prior art, the refrigeration equipment of the present application can transmit the cold energy generated by the evaporator tube to the area near the opening of the storage room indoors through the heat exchange channel in the return air component and the air duct in the temperature equalizing module, thereby improving the uniformity of the cold energy distribution in the storage room indoors; further, by controlling the ratio of the size of the heat exchange channel to the first wall in the second direction, the temperature equalizing effect of the temperature equalizing module can be enhanced, and the cost can be controlled at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of a refrigeration device according to an embodiment of the present application;

[0020] Figure 2 is a schematic diagram of the three-dimensional structure of a refrigeration device according to an embodiment of the present application, which illustrates a state where the door body is removed;

[0021] Figure 3 is a top view of a refrigeration device according to an embodiment of the present application;

[0022] Figure 4 It is a schematic diagram of the assembly structure of a temperature equalizing module and an air return member in a refrigeration device according to an embodiment of the present application;

[0023] Figure 5 yes Figure 3 Sectional view along line AA;

[0024] Figure 6 yes Figure 5 The enlarged schematic diagram of the middle part B;

[0025] Figure 7 yes Figure 5 The enlarged schematic diagram of the middle C part;

[0026] Figure 8 yes Figure 7 The enlarged schematic diagram of the middle D part;

[0027] Fig. 9 is a simulation test diagram of a refrigeration device according to an embodiment of the present application, wherein α is 85°;

[0028] Fig.10 is a simulation test diagram of a refrigeration device according to an embodiment of the present application, wherein α is 65°;

[0029] Fig.11 This is a simulation test diagram of a refrigeration device according to an embodiment of the present application, wherein α is 48°.

[0030] Description of reference numerals:

[0031] 100. Refrigeration equipment; 1. Box body; 11. Inner tank; 111. First wall; 112. Second wall; 113. Third wall; 12. Shell; 2. Door; 3. Storage compartment; 4. Evaporation tube; 5. Temperature equalization module; 51. Air outlet; 511. First air outlet; 512. Second air outlet; 52. First air guide; 53. Second air guide; 54. Third air guide; 55. Fourth air guide; 56. Fan assembly; 6. Return air member; 61. Return air outlet; 611. First return air outlet; 612. Second return air outlet; 62. Cover plate; 63. First side plate; 64. Second side plate; 7. Basket; 8. Gap portion. DETAILED DESCRIPTION

[0032] The present application will be described in detail below with reference to the specific embodiments shown in the accompanying drawings.

[0033] In the various drawings of the present application, for the sake of convenience of illustration, some dimensions of structures or parts are exaggerated relative to other structures or parts, and therefore, are only used to illustrate the basic structure of the subject matter of the present application.

[0034] It should be understood that although the terms "first", "second", "third", etc. may be used in this article to describe various elements, structures or parameters, these described objects should not be limited by these terms. These terms are only used to distinguish these described objects from each other.

[0035] Ginseng Figures 1 to 3 As shown, an embodiment of the present application provides a refrigeration device 100, including a box body 1, a door body 2 and a refrigeration unit, the box body 1 has a storage compartment 3, the storage compartment 3 has an opening, and the door body 2 is used to open or close the opening of the storage compartment 3.

[0036] The refrigeration device 100 in this embodiment is a direct cooling refrigeration device, that is, it uses a direct cooling method to cool the items stored in the storage compartment 3. The refrigeration device 100 can be specifically configured as a refrigerator, a freezer, a wine cabinet, etc., especially a large-volume refrigeration device. In this embodiment, the refrigeration device 100 is described as a horizontal freezer as an example.

[0037] Combination Figures 4 to 6Specifically, the refrigeration unit includes a compressor, a condenser, a throttling device and an evaporator connected in sequence, the box body 1 includes an inner tank 11 and a shell 12 arranged outside the inner tank 11, the inner tank 11 defines a storage compartment 3, and the evaporator includes an evaporation tube 4 wound around the outer periphery of the inner tank 11; the evaporation tube 4 transfers cold energy through the inner tank 11 to the storage compartment 3 by natural radiation, thereby cooling the items stored in the storage compartment 3.

[0038] In this natural radiation cooling method in which the evaporator tube 4 is wound around the outer periphery of the inner tank 11, cold energy is transferred from the inner tank 11 to the middle area of ​​the storage room 3. However, the space in the storage room 3 is usually large, which will lead to a large temperature difference between the various areas in the storage room 3 and poor temperature uniformity. In addition, the storage room 3 has an opening. Especially when the door body 2 is opened, more cold energy at the opening of the storage room 3 is dissipated to the outside, which will cause the temperature of the area near the opening of the storage room 3 to be significantly higher than the area near the inner tank 11, further aggravating the temperature unevenness in the storage room 3.

[0039] See also Figure 4 and Figure 5 , the refrigeration device 100 also includes a temperature equalizing module 5 and a return air piece 6 arranged in the storage room 3. The return air piece 6 is connected to the inner liner 11, and a heat exchange channel is formed between the return air piece 6 and the inner liner 11. The temperature equalizing module 5 includes a shell 12 and an air duct formed in the shell 12. The heat exchange channel, the air duct, and the storage room 3 are sequentially connected to form a circulating air path. The air outlet 51 of the air duct is arranged at the opening of the shell 12 near the storage room 3, so that the cold energy generated by the evaporation tube 4 can be transmitted to the area near the opening of the storage room 3 in the storage room 3 through the heat exchange channel in the return air piece 6 and the air duct in the temperature equalizing module 5, and the cold energy can flow from the storage room 3 near the opening area to the return air piece, thereby improving the uniformity of the cold energy distribution in the storage room 3.

[0040] See also Figures 7 and 8 The air outlet 51 is provided with an air guide, and in order to distinguish the air guides at different positions, they are hereinafter distinguished as a first air guide 52, a second air guide 53, a third air guide 54, and a fourth air guide 55. The air guide has an air guide slope facing the air outlet 51, and the air sent out from the air outlet 51 is discharged along the air guide slope.

[0041] Specifically, a first air guide 52 is provided at one end of the air outlet 51 close to the opening of the storage compartment 3, and an angle α between the air guide slope of the first air guide 52 and the first direction is an acute angle, wherein the first direction is the opposite direction of the opening direction of the storage compartment 3, that is, the first direction is opposite to the opening direction of the storage compartment 3.

[0042] By setting an air guide at the air outlet 51, the air outlet direction of the temperature equalizing module 5 can be controlled. By setting the angle of the first air guide 52, the air outlet direction of the temperature equalizing module 5 can be controlled, that is, air is discharged toward the area in the storage room 3 where the cooling capacity is insufficient, thereby reducing the temperature of the area in the storage room 3 far away from the inner tank 11. It can also prevent the air outlet of the temperature equalizing module 5 from blowing directly onto the door body 2, thereby reducing the heat exchange between the cooling capacity delivered by the air outlet 51 and the door body 2, thereby achieving energy saving and preventing condensation on the door body 2.

[0043] See also Figures 5 to 7 Further, the refrigeration device 100 further includes a basket 7 disposed in the storage compartment 3, the basket 7 is located between the temperature equalizing module 5 and the inner liner 11, the basket 7 has an opening, and the opening of the basket 7 faces the opening of the storage compartment 3, that is, the opening of the basket 7 faces the door body 2, and the plane where the wind guide slope of the first wind guide member 52 is located intersects with the opening of the basket 7. In this way, when the basket 7 is placed in the refrigeration device 100, it can be ensured that the cold air sent out from the air outlet 51 directly blows the basket 7, thereby cooling and refrigerating the items stored in the basket 7.

[0044] The number of baskets 7 here can be set according to the space of the storage compartment 3, the size of the baskets 7 and the amount of stored items, and can be one or two or more. Usually, the openings of two or more baskets 7 are coplanar. If there are two or more baskets 7 and the openings of the baskets 7 are not coplanar, the opening of the basket 7 whose opening is closest to the opening of the storage compartment 3 is the opening of the basket 7 in this application.

[0045] See also Figure 1 Further, the inner tank 11 includes a first wall 111 , the first wall 111 extends along a second direction perpendicular to the first direction, and the air return member 6 is disposed on the first wall 111 .

[0046] Specifically, a pair of first walls 111 are provided, and the pair of first walls 111 are arranged opposite to each other along a third direction, and the third direction is perpendicular to the first direction and the second direction. Correspondingly, a pair of return air components 6 are also provided, and the pair of return air components 6 are respectively arranged on a pair of first walls 111, and the two ends of the temperature balancing module 5 along the third direction are respectively connected to the pair of return air components 6.

[0047] In addition, the inner tank 11 further includes a pair of second walls 112 arranged opposite to each other along the second direction, each first wall 111 is respectively connected to a pair of second walls 112, and each second wall 112 is respectively connected to a pair of first walls 111. The inner tank 11 further includes a third wall 113 arranged opposite to the opening of the storage compartment 3, and the four sides of the third wall 113 are respectively connected to the pair of first walls 111 and the pair of second walls 112, so that the third wall 113, the pair of first walls 111, and the pair of second walls 112 together enclose the storage compartment 3.

[0048] Preferably, a pair of return air components 6 are arranged relatively along the third direction, and the two ends of the temperature equalizing module 5 along the third direction are respectively connected to a pair of return air components 6 , and the air outlet 51 of the temperature equalizing module 5 faces the second wall 112 , that is, the temperature equalizing module 5 discharges air toward the second wall 112 .

[0049] Furthermore, the intersection line of the plane where the wind guiding slope of the first wind guide member 52 is located and the second wall 112 is located on the side of the plane where the opening of the basket 7 is located away from the opening of the storage compartment 3. This can prevent the cold air delivered by the air outlet 51 from being completely blown to the top of the basket 7 and thus gathered at the door body 2, which not only fails to effectively cool the items stored in the basket 7, but also causes a large amount of cold air to flow to the door body 2, resulting in cold air loss and the occurrence of condensation on the door body 2.

[0050] Preferably, the dimension of the first wall 111 along the second direction is greater than the dimension of the second wall 112 along the second direction, which is more conducive to improving the uniformity of the temperature in the storage compartment 3.

[0051] Preferably, the temperature-averaging module 5 is perpendicular to the first wall 111, that is, the temperature-averaging module 5 extends along the plane formed by the first direction and the second direction, and the temperature-averaging module 5 is located in the middle of the storage compartment 3. More preferably, the temperature-averaging module 5 passes through the midline of each of the pair of first walls 111 along the first direction. In this way, the temperature uniformity in the entire storage compartment 3 can be further improved.

[0052] See also Figure 8 Preferably, the angle α between the wind guiding slope of the first wind guide 52 and the first direction is 48° to 65°, more preferably 48° to 52°. By limiting α to this angle range, the cold air delivered by the air outlet 51 can be prevented from being blown toward the door body 2, resulting in large cold air loss and condensation on the door body 2, while expanding the air outlet coverage area of ​​the air outlet 51, thereby achieving energy saving and anti-condensation effects.

[0053] Further, see Figure 5 Taking the storage compartment 3 with six baskets 7 arranged side by side along the second direction, and the baskets 7 storing items, that is, the baskets 7 are fully loaded as an example, a simulation test is conducted in accordance with GB / T21001.2-2015 Refrigeration Display Cabinets Part 2: Classification, Requirements and Test Conditions. Figures 9 to 11 It can be seen that compared with Fig. 9 When α is 85°, Fig.10 , Fig.11When α is at 48° and 65°, the cooling streamline between the basket 7 and the door body 2 can be significantly reduced, that is, the cooling distribution between the basket 7 and the door body 2 can be significantly reduced. When α is in the range of 48° to 65°, the cooling can flow along the gap between the baskets 7 in a direction away from the door body 2, thereby increasing the contact area between the cooling discharged from the air outlet 51 and the items in the basket 7, achieving effective cooling of the items in the basket 7 and improving the temperature uniformity in the entire storage compartment 3.

[0054] Preferably, the air outlet 51 includes a first air outlet 511 and a second air outlet 512 spaced apart from the first air outlet 511 along the first direction, and the first air guide 52 is located at one end of the first air outlet 511 away from the second air outlet 512, thereby increasing the area of ​​the air outlet 51 and the air outlet coverage area.

[0055] Furthermore, the second air outlet 512 has a second air guide 53 close to the first air outlet 511, and the angle β between the air guide slope of the second air guide 53 and the first direction is 50° to 65°, and more preferably 51° to 55°. By limiting β within this angle range, it is possible to expand the air outlet coverage area of ​​the air outlet 51, on the one hand, avoid the cold delivered by the air outlet 51 from blowing toward the door body 2, resulting in a large loss of cold and condensation on the door body 2, and on the other hand, avoid the cold delivered by the second air outlet 512 from directly returning from the area close to the temperature equalization module 5 to the heat exchange channel of the return air component 6, which results in the shortening of the circulation air path of the cold delivered by the second air outlet 512 in the storage compartment 3 and the inability to achieve effective temperature equalization.

[0056] In a preferred embodiment, β>α is set, so that the air outlet coverage area of ​​the entire air outlet 51 can be expanded; of course, in other embodiments, β=α can also be set, so as to simplify the processing steps and save production costs.

[0057] More preferably, β-α≤10°. This avoids an air outlet gap between the first air outlet 511 and the second air outlet 512, thereby preventing the area between the first air outlet 511 and the second air outlet 512 from being unable to be effectively cooled.

[0058] Furthermore, the first air outlet 511 also has a third air guide member 54 close to the second air outlet 512. The first air guide member 52 and the third air guide member 54 are arranged relatively to each other along the first direction. The angle between the air guide slope of the third air guide member 54 and the first direction is γ, γ≤α, so that the air outlet coverage area of ​​the first air outlet 511 can be ensured, especially γ<α, that is, the first air outlet 511 is gradually expanding, thereby expanding the air outlet coverage area of ​​the first air outlet 511.

[0059] Furthermore, the second air outlet 512 also has a fourth air guide member 55 away from the first air outlet 511, and the second air guide member 53 and the fourth air guide member 55 are arranged relatively to each other along the first direction. The angle between the air guide slope of the fourth air guide member 55 and the first direction is μ, μ≤β, so that the air outlet coverage area of ​​the second air outlet 512 can be ensured, especially γ<α, that is, the second air outlet 512 is gradually expanding, thereby expanding the air outlet coverage area of ​​the second air outlet 512.

[0060] Specifically, one or at least two first air outlets 511 may be provided, and the same is true for the second air outlets 512 , thereby increasing the air outlet area of ​​the air outlet 51 , expanding the air outlet coverage area, and further improving the temperature uniformity in the storage compartment 3 .

[0061] Preferably, at least two first air outlets 511 are arranged at intervals along the third direction. Preferably, at least two second air outlets 512 are arranged at intervals along the third direction. Such an arrangement can place the air outlet 51 at a better position to better improve the temperature distribution in the storage compartment 3.

[0062] Preferably, the first air outlet 511 can be configured to be in a strip shape, and so can the second air outlet 512 , so as to increase the air outlet area of ​​the air outlet 51 , expand the air outlet coverage area, and further improve the temperature uniformity in the storage compartment 3 .

[0063] Furthermore, the ratio of the size of the heat exchange channel and the first wall 111 in the second direction is 1 / 6 to 2 / 3. Under this size ratio, the size ratio of the heat exchange channel and the first wall 111 can enhance the temperature equalization effect of the temperature equalization module 5 and control the cost at the same time; when the size ratio is <1 / 6, the cold air delivered from the air outlet 51 of the temperature equalization module 5 will mainly return to the return air component 6 along the temperature equalization module 5. Such a circulating air path is shorter, and the cooling effect on the area in the storage room 3 far away from the inner tank 11 and the temperature equalization module 5 is poor, and the temperature uniformity in the storage room 3 is poor; when the size ratio is >2 / 3, the raw material cost and installation cost are greatly increased, which is not conducive to cost control.

[0064] Preferably, the air return member 6 extends along the second direction, and the heat exchange channel also extends along the second direction. This can save materials, simplify the installation process, and reduce costs while ensuring a uniform temperature effect.

[0065] Further, the heat exchange channel includes a pair of interconnected sub-channels, which are respectively located on both sides of the temperature equalizing module 5. The temperature equalizing module 5 has two air outlets 51, which are relatively arranged at two ends of the temperature equalizing module 5 along the second direction.

[0066] For ease of description, the subchannel on one side of the temperature equalization module 5 and the air outlet 51 on the side corresponding to the subchannel are used as examples for description. The subchannel has an upper edge close to the opening of the storage compartment 3 and a lower edge away from the opening of the storage compartment 3. An air guide is provided at one end of the air outlet 51 away from the opening of the storage compartment 3. The air guide here refers to the fourth air guide 55 mentioned above. The line connecting the midpoint of the upper edge and the midpoint of the lower edge intersects the plane where the air guide slope of the fourth air guide 55 is located.

[0067] In this way, the temperature drop in the storage compartment 3 away from the inner container 11 can be ensured, thereby improving the overall temperature uniformity in the storage compartment 3 .

[0068] Furthermore, the plane where the wind guiding slope of the fourth wind guiding member 55 is located intersects with the opening of the basket 7. In this way, the cold air sent out from the air outlet 51 can be blown directly to the basket 7, thereby effectively cooling the items stored in the basket 7, and preventing the cold air sent out from the air outlet 51 from directly returning to the heat exchange channel of the return air member 6 from the gap between the basket 7 and the temperature balancing module 5, thereby shortening the circulation air path of the cold air sent out from the air outlet 51 in the storage compartment 3 and failing to achieve the purpose of effective temperature balancing.

[0069] See also Figure 5 and Figure 7 Furthermore, the return air part 6 is provided with a return air port 61, and the distance between the return air port 61 and the third wall 113 is 10 to 40 cm. Since the evaporation tube 4 is wound around the inner tank 11, and the cold air has a tendency to sink, the area with the lowest temperature in the inner tank 11 is usually the area close to the third wall 113. Setting the distance between the return air port 61 and the third wall 113 to 10 to 40 cm can, on the one hand, improve the heat exchange efficiency between the heat exchange channel in the return air part 6 and the inner tank 11, thereby improving the temperature equalization effect of the temperature equalization module 5, and on the other hand, reserve space for the installation of the return air part 6, and avoid mutual interference between the return air part 6 and the basket 7.

[0070] See also Figure 7 Specifically, the air return member 6 includes a cover plate 62 and a pair of first side plates 63, the cover plate 62 is parallel to the first wall 111, the first side plate 63 extends along the first direction, the pair of first side plates 63 are arranged opposite to each other along the second direction, and the first side plate 63 connects the cover plate 62 and the first wall 111, and the air return port 61 includes a first air return port 611 arranged on the first side plate 63, and the distance between the first air return port 611 and the third wall 113 is 10 to 40 cm. The first air return port 611 is arranged on the first side plate 63, so as to avoid the situation that the first air return port 611 is blocked by the items stored in the storage compartment 3 and the air cannot be returned.

[0071] Furthermore, the air return member 6 also includes a second side panel 64, which is arranged at one end of the cover plate 62 close to the third wall 113, and the second side panel 64 connects the cover plate 62 and the first wall 111, and the return air outlet 61 includes a second return air outlet 612 arranged on the second side panel 64, and the distance between the second return air outlet 612 and the third wall 113 is 10 to 40 cm. The second return air outlet 612 is arranged on the second side panel 64 to avoid the second return air outlet 612 being blocked by items stored in the storage compartment 3, resulting in a situation where the air cannot be returned.

[0072] Furthermore, the distance between one end of the air return member 6 away from the third wall 113 and the third wall 113 is ≤40 cm, so that the mutual interference between the air return member 6 and the basket 7 can be effectively prevented.

[0073] In this embodiment, the air return member 6 is detachably mounted on the housing 12. The air return member 6 is detachably mounted on the housing 12, which can be easily replaced.

[0074] See also Figure 7 In the present embodiment, a gap portion 8 is provided between one end of the shell 12 of the temperature balancing module 5 facing the third wall 113 and the third wall 113. On the one hand, it is beneficial for the cold air on both sides of the temperature balancing module 5 to exchange and flow from the gap portion 8, thereby improving the temperature uniformity in the storage compartment 3. On the other hand, it is also beneficial for the return air component 6 to be installed and connected with the temperature balancing module 5 from the gap portion 8.

[0075] Furthermore, the air inlet of the air duct is arranged on the housing 12, and the air outlet of the heat exchange channel is arranged on the cover plate 62, and the air outlet is connected to the air inlet. The temperature equalization module 5 also includes a fan assembly 56 arranged in the air duct, and the fan assembly 56 is used to drive the cold air to flow from the air inlet to the air outlet 51. The fan assembly 56 includes a fan.

[0076] In summary, the refrigeration device 100 of the present application can transmit the cold energy generated by the evaporator tube 4 to the area near the opening of the storage room 3 in the storage room 3 through the heat exchange channel in the return air component 6 and the air duct in the temperature equalizing module 5, thereby improving the uniformity of the cold energy distribution in the storage room 3; further, by controlling the ratio of the size of the heat exchange channel to the first wall 111 in the second direction, the temperature equalizing effect of the temperature equalizing module 5 can be enhanced, and the cost can be controlled at the same time.

[0077] The above describes in detail the structure, features and effects of the present application based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present application, but the present application does not limit the scope of implementation to what is shown in the drawings. Any changes made in accordance with the concept of the present application, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present application.

Claims

1. A refrigeration device (100), comprising an inner container (11) and an evaporation tube (4) wound around the outer periphery of the inner container (11), wherein the inner container (11) defines a storage compartment (3) having an opening, characterized in that: The refrigeration device (100) further comprises a temperature equalizing module (5) and an air return component (6) arranged in the storage compartment (3); The air return member (6) is connected to the inner tank (11) and a heat exchange channel is formed between the two; The temperature-averaging module (5) comprises a shell (12) and an air duct formed in the shell (12); the heat exchange channel, the air duct, and the storage compartment (3) are sequentially connected to form a circulating air path; The inner tank (11) comprises a first wall (111), the first wall (111) extending in a second direction perpendicular to the first direction, the air return member (6) being arranged on the first wall (111), the first direction being opposite to an opening direction of the storage compartment (3), and the ratio of the size of the heat exchange channel to the first wall (111) in the second direction being 1 / 6 to 2 / 3.

2. The refrigeration device (100) according to claim 1, characterized in that: The air return member (6) extends along the second direction, and the heat exchange channel extends along the second direction.

3. The refrigeration device (100) according to claim 1, characterized in that: A pair of the first walls (111) are provided, and the pair of the first walls (111) are arranged opposite to each other along a third direction, and the third direction is perpendicular to the first direction and the second direction. A pair of the return air components (6) are provided, and the pair of the return air components (6) are respectively arranged on the pair of the first walls (111), and the temperature equalizing module (5) is respectively connected to the pair of the return air components (6).

4. The refrigeration device (100) according to claim 3, characterized in that: The inner container (11) further comprises a pair of second walls (112) arranged opposite to each other along the second direction, each of the first walls (111) is respectively connected to the pair of second walls (112), and the dimension of the first wall (111) along the second direction is greater than the dimension of the second wall (112) along the second direction.

5. The refrigeration device (100) according to claim 3, characterized in that: The heat exchange channel comprises a pair of sub-channels that are interconnected, the pair of sub-channels being located on both sides of the temperature balancing module (5), the sub-channels having an upper edge close to the opening of the storage compartment (3) and a lower edge away from the opening of the storage compartment (3), the temperature balancing module (5) being provided with an air outlet (51) close to the opening of the storage compartment (3), an air guide being provided at one end of the air outlet (51) away from the opening of the storage compartment (3), and a line connecting the midpoint of the upper edge and the midpoint of the lower edge intersecting with a plane where an air guide slope of the air guide is located.

6. The refrigeration device (100) according to claim 5, characterized in that: It also includes a basket (7) arranged in the storage compartment (3), the basket (7) being located between the temperature-averaging module (5) and the inner container (11), and the plane where the wind-guiding inclined surface of the wind-guiding member is located intersects with the opening of the basket (7).

7. The refrigeration device (100) according to claim 1, characterized in that: The air return member (6) is provided with an air return port (61), and the inner container (11) further comprises a third wall (113) arranged opposite to the opening of the storage compartment (3), and the distance between the air return port (61) and the third wall (113) is 10 to 40 cm.

8. The refrigeration device (100) according to claim 7, characterized in that: The air return member (6) comprises a cover plate (62) and a pair of first side plates (63), the cover plate (62) is parallel to the first wall (111), the first side plate (63) extends along the first direction, the pair of first side plates (63) are arranged opposite to each other along the second direction, and the first side plate (63) connects the cover plate (62) and the first wall (111), the air return port (61) comprises a first air return port (611) arranged on the first side plate (63), and the distance between the first air return port (611) and the third wall (113) is 10 to 40 cm.

9. The refrigeration device (100) according to claim 7 or 8, characterized in that: The return air component (6) comprises a cover plate (62) and a second side plate (64), the cover plate (62) is parallel to the first wall (111), the second side plate (64) is arranged at one end of the cover plate (62) close to the third wall (113), and the second side plate (64) connects the cover plate (62) and the first wall (111), the return air outlet (61) comprises a second return air outlet (612) arranged on the second side plate (64), and the distance between the second return air outlet (612) and the third wall (113) is 10 to 40 cm.

10. The refrigeration device (100) according to claim 7, characterized in that: The distance between one end of the air return member (6) away from the third wall (113) and the third wall (113) is ≤40 cm.

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