Large-volume commercial air-cooled low-temperature refrigerator

Abstract

The utility model belongs to the technical field of refrigerators, and particularly relates to a large-volume commercial air-cooled low-temperature refrigerator which comprises a refrigerator body, a partition plate, a freezing area and a refrigerating area, the partition plate is arranged in an inner cavity of the refrigerator body, the freezing area and the refrigerating area are located on the two sides of the partition plate respectively, and a protective cover layer is arranged on the outer surface of the refrigerator body. A protective cover layer is arranged on the inner wall of the cabinet body, a polyurethane foaming plastic heat preservation layer is pasted on the inner wall of the protective cover layer, a metal outer cover layer is pasted on the inner wall of the polyurethane foaming plastic heat preservation layer, a metal inner cover layer is arranged in an inner cavity of the metal outer cover layer, a vacuum layer is formed between the metal inner cover layer and the metal outer cover layer, and a vacuum meter is arranged on the surface of one side of the cabinet body. A supporting column is welded between the metal inner cover layer and the metal outer cover layer; the vacuum layer and the polyurethane foaming plastic heat preservation layer are matched to be used for heat preservation of the cabinet body, the cavity wall of the vacuum layer is thin, the thickness of the polyurethane foaming plastic heat preservation layer can be reduced, a large storage space can be obtained in the cabinet body, and the space utilization rate of the cabinet body is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, in particular to a large-capacity commercial air-cooled low-temperature refrigerator. Background Art

[0002] Refrigeration equipment (refrigerators, freezers, etc.) is an electrical appliance that people often use in their daily lives. Among them, for commercial upright refrigerators, they are mainly placed in places such as shopping malls and supermarkets, and beverages are mainly placed inside them for consumers to take directly. Typically, commercial upright refrigerators are designed with a glass door so that external consumers can directly observe the storage conditions inside; a patent search revealed that the publication number: CN212481788U discloses a commercial air-cooled refrigerator, comprising: a cabinet body, the cabinet body comprising an outer shell and an inner liner, the inner liner is arranged in the outer shell, and an insulation layer is formed between the inner liner and the outer shell; an air duct cover plate, an air inlet and an air outlet are arranged on the air duct cover plate, the air duct cover plate is arranged in the inner liner and forms an air duct with the back of the inner liner; a refrigeration circuit, the refrigeration circuit comprises a compressor, a condenser, a throttling device and an evaporator connected together, and the evaporator is located in the air duct; a centrifugal fan, the centrifugal fan is located in the air duct, and is used to inhale air through the air inlet and output it from the air outlet after heat exchange through the evaporator; a water receiving tray, a drainage portion for draining water to the outside is arranged on the water receiving tray; wherein a storage compartment is formed between the lower part of the air duct cover plate and the bottom of the inner liner, and the water receiving tray is arranged on the back of the air duct cover plate and is located below the evaporator. Realize the increase of storage space of commercial air-cooled freezers.

[0003] During the use of existing refrigerators, a polyurethane foam plastic insulation layer is filled in the refrigerator cavity wall. The refrigerator is insulated by the polyurethane foam plastic insulation layer. In order to ensure the insulation effect of the refrigerator when in use, the polyurethane foam plastic insulation layer needs to have a certain thickness. The polyurethane foam plastic insulation layer will occupy the space in the refrigerator, resulting in a reduction in the storage space in the refrigerator. To solve the above problems, the present application proposes a large-volume commercial air-cooled low-temperature refrigerator. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In order to solve the technical problems existing in the background technology, the utility model proposes a large-volume commercial air-cooled low-temperature freezer, which is used for insulation of the cabinet body by combining a vacuum layer and a polyurethane foam plastic insulation layer. The cavity wall of the vacuum layer is thinner, which can reduce the thickness of the polyurethane foam plastic insulation layer, and can obtain more storage space in the cabinet body, thereby improving the space utilization rate of the cabinet body to solve the problems raised in the background technology.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the utility model provides a large-volume commercial air-cooled low-temperature freezer, comprising a cabinet, a partition plate, a freezing area and a refrigerating area, wherein the partition plate is arranged in the inner cavity of the cabinet, the freezing area and the refrigerating area are respectively located on both sides of the partition plate, and a protective cover layer is arranged on the outer surface of the cabinet, a polyurethane foam plastic insulation layer is pasted on the inner wall of the protective cover layer, a metal outer cover layer is pasted on the inner wall of the polyurethane foam plastic insulation layer, a metal inner cover layer is arranged in the inner cavity of the metal outer cover layer, and a vacuum layer is formed between the metal inner cover layer and the metal outer cover layer;

[0008] A vacuum gauge is provided on one side surface of the cabinet.

[0009] Preferably, support columns are welded between the metal inner cover layer and the metal outer cover layer, and the support columns are equidistantly distributed.

[0010] Preferably, a circulating refrigeration fan is installed on the top surface of the cabinet, and the circulating refrigeration fan is symmetrically arranged.

[0011] Preferably, the partition plate and the top of the inner cavity of the freezing zone are both equipped with exhaust hoods, and the exhaust hoods are respectively connected to the exhaust ends of the circulating refrigeration fans through pipelines.

[0012] Preferably, the partition plate and the bottom of the freezing zone inner cavity are both equipped with return air hoods, the partition plate and the inner wall surface of the freezing zone are both provided with return air pipes, and the return air hoods are respectively connected to the return air ends of the circulating refrigeration fans through the return air pipes.

[0013] Preferably, a metal lining layer is provided on the inner wall of the metal inner cover layer, and the metal lining layer is located on the inner wall of the cabinet.

[0014] Preferably, a vacuum valve is provided on one side of the vacuum gauge, and the vacuum gauge and the vacuum valve are connected to the vacuum layer through a pipeline.

[0015] The above technical solution of the utility model has the following beneficial technical effects:

[0016] 1. In the utility model, a vacuum layer is formed between the metal outer cover layer and the metal inner cover layer. The vacuum layer cannot provide a temperature transmission medium. At the same time, it can improve the thermal insulation of the cabinet when matched with the polyurethane foam plastic insulation layer, reduce the temperature exchange between the cabinet and the outside, and make the cabinet have better thermal insulation. The cavity wall of the vacuum layer is thinner, which can reduce the thickness of the polyurethane foam plastic insulation layer, and obtain more storage space in the cabinet, thereby improving the space utilization rate of the cabinet.

[0017] 2. In the utility model, when the vacuum degree is reduced, the vacuum layer can be evacuated by connecting the vacuum device with the vacuum valve to ensure the thermal insulation of the cabinet. The support column can support the vacuum layer and improve the structural strength of the vacuum layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a large-capacity commercial air-cooled low-temperature freezer of the utility model;

[0019] Figure 2 This is a schematic cross-sectional structure diagram of a large-capacity commercial air-cooled low-temperature freezer of the utility model;

[0020] Figure 3 This is a schematic diagram of the cabinet structure layer structure of a large-capacity commercial air-cooled low-temperature freezer of the utility model;

[0021] Figure 4 The utility model is a side view of the structure of a large-capacity commercial air-cooled low-temperature freezer.

[0022] Reference numerals:

[0023] 1. Cabinet; 2. Partition plate; 3. Freezing area; 4. Refrigerating area; 5. Circulating refrigeration fan; 6. Exhaust hood; 7. Return air hood; 8. Return air duct; 9. Protective cover layer; 10. Polyurethane foam plastic insulation layer; 11. Metal outer cover layer; 12. Metal inner cover layer; 13. Vacuum layer; 14. Metal lining layer; 15. Vacuum gauge; 16. Vacuum valve; 17. Support column. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0025] like Figure 1-4 As shown, the utility model proposes a large-capacity commercial air-cooled low-temperature freezer, comprising a cabinet body 1, a partition plate 2, a freezing area 3 and a refrigerating area 4, wherein the partition plate 2 is arranged in the inner cavity of the cabinet body 1, and the freezing area 3 and the refrigerating area 4 are respectively located on both sides of the partition plate 2, and the outer surface of the cabinet body 1 is provided with a protective cover layer 9, and the inner wall of the protective cover layer 9 is adhered with a polyurethane foam plastic insulation layer 10, and the inner wall of the polyurethane foam plastic insulation layer 10 is adhered with a metal outer cover layer 11, and the inner cavity of the metal outer cover layer 11 is provided with a metal inner cover layer 12, and a vacuum layer 13 is formed between the metal inner cover layer 12 and the metal outer cover layer 11.

[0026] It should be noted that a vacuum layer 13 is formed between the metal outer cover layer 11 and the metal inner cover layer 12. The vacuum layer 13 cannot provide a temperature transmission medium. At the same time, it can be matched with the polyurethane foam plastic insulation layer 10 to improve the thermal insulation of the cabinet 1, reduce the temperature exchange between the cabinet 1 and the outside world, and make the cabinet 1 have better thermal insulation. The cavity wall of the vacuum layer 13 is thinner, which can reduce the thickness of the polyurethane foam plastic insulation layer 10, and obtain more storage space in the cabinet 1, thereby improving the space utilization rate of the cabinet 1.

[0027] In this embodiment, if Figure 3 As shown, support columns 17 are welded between the metal inner cover layer 12 and the metal outer cover layer 11, and the support columns 17 are equidistantly distributed.

[0028] It should be noted that the support column 17 can support the vacuum layer 13 and improve the structural strength of the vacuum layer 13 .

[0029] In this embodiment, if Figure 3 and Figure 4 As shown, a circulating refrigeration fan 5 is installed on the top surface of the cabinet 1, and the circulating refrigeration fan 5 is symmetrically arranged. Exhaust hoods 6 are installed on the top of the inner cavity of the partition plate 2 and the freezing zone 3, and the exhaust hoods 6 are respectively connected to the exhaust ends of the circulating refrigeration fan 5 through pipelines. Return air hoods 7 are installed on the bottom of the inner cavity of the partition plate 2 and the freezing zone 3, and return air pipes 8 are provided on the inner wall surfaces of the partition plate 2 and the freezing zone 3. The return air hoods 7 are respectively connected to the return air ends of the circulating refrigeration fan 5 through return air pipes 8.

[0030] It should be noted that the inner cavity of the cabinet 1 can respectively perform frozen storage and fresh storage of food through the freezing area 3 and the refrigerating area 4, and the circulating refrigeration fan 5 can respectively extract the cold air in the freezing area 3 and the refrigerating area 4 through the return air pipe 8 and the return air hood 7, and the cold air is discharged to the freezing area 3 and the refrigerating area 4 again by the exhaust hood 6, which can accelerate the air circulation in the freezing area 3 and the refrigerating area 4 and make the cold air distribution in each part of the freezing area 3 and the refrigerating area 4 more uniform.

[0031] In this embodiment, if Figure 3 As shown, a metal lining layer 14 is provided on the inner wall of the metal inner cover layer 12 , and the metal lining layer 14 is located on the inner wall of the cabinet body 1 .

[0032] It should be noted that the metal lining layer 14 is located on the inner wall of the cabinet 1 , and can improve the wear-resistant layer of the inner wall of the cabinet 1 .

[0033] In this embodiment, if Figure 4 As shown, a vacuum gauge 15 is provided on one side of the cabinet 1 , a vacuum valve 16 is provided on one side of the vacuum gauge 15 , and the vacuum gauge 15 and the vacuum valve 16 are connected to the vacuum layer 13 through a pipeline.

[0034] It should be noted that when the vacuum degree is reduced, the vacuum layer 13 can be evacuated by connecting the vacuum device to the vacuum valve 16 to ensure the thermal insulation of the cabinet 1 .

[0035] The working principle and use process of the utility model are as follows: the inner cavity of the cabinet body 1 can respectively perform frozen storage and fresh storage of food through the freezing area 3 and the refrigerating area 4; the circulating refrigeration fan 5 can respectively extract the cold air in the freezing area 3 and the refrigerating area 4 through the return air pipe 8 and the return air hood 7, and the cold air is discharged to the freezing area 3 and the refrigerating area 4 again by the exhaust hood 6, which can accelerate the air circulation in the freezing area 3 and the refrigerating area 4, and make the cold air distribution in each part of the freezing area 3 and the refrigerating area 4 more uniform; a vacuum layer 13 is formed between the metal outer cover layer 11 and the metal inner cover layer 12, and the vacuum layer 13 cannot provide a temperature transmission medium, and at the same time, it can be matched with the polyurethane foam plastic insulation layer 10 to improve the cabinet 1 has good thermal insulation performance, which can reduce the temperature exchange between the cabinet 1 and the outside world, so that the cabinet 1 has better thermal insulation performance. The cavity wall of the vacuum layer 13 is thinner, which can reduce the thickness of the polyurethane foam plastic insulation layer 10, so that more storage space can be obtained in the cabinet 1, and the space utilization rate of the cabinet 1 is improved. The metal lining layer 14 is located on the inner wall of the cabinet 1, which can improve the wear-resistant layer of the inner wall of the cabinet 1. The negative pressure value in the vacuum layer 13 can be monitored by the vacuum gauge 15. When the vacuum degree is reduced, the vacuum layer 13 can be evacuated by connecting the vacuum equipment with the vacuum valve 16 to ensure the thermal insulation performance of the cabinet 1. The support column 17 can support the vacuum layer 13 and improve the structural strength of the vacuum layer 13.

[0036] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims or the equivalent forms of such scope and boundaries.

Claims

1. A large-volume commercial air-cooled low-temperature freezer, comprising a cabinet body (1), a partition plate (2), a freezing zone (3) and a refrigerating zone (4), wherein the partition plate (2) is arranged in the inner cavity of the cabinet body (1), and the freezing zone (3) and the refrigerating zone (4) are respectively located on both sides of the partition plate (2), characterized in that: The cabinet body (1) is provided with a protective cover layer (9) on its outer surface, a polyurethane foam plastic insulation layer (10) is adhered to the inner wall of the protective cover layer (9), a metal outer cover layer (11) is adhered to the inner wall of the polyurethane foam plastic insulation layer (10), a metal inner cover layer (12) is provided in the inner cavity of the metal outer cover layer (11), and a vacuum layer (13) is formed between the metal inner cover layer (12) and the metal outer cover layer (11); A vacuum gauge (15) is provided on one side surface of the cabinet (1).

2. A large-capacity commercial air-cooled low-temperature freezer according to claim 1, characterized in that: Support columns (17) are welded between the metal inner cover layer (12) and the metal outer cover layer (11), and the support columns (17) are distributed in an equidistant manner.

3. A large-capacity commercial air-cooled low-temperature freezer according to claim 2, characterized in that: A circulating refrigeration fan (5) is installed on the top surface of the cabinet (1), and the circulating refrigeration fan (5) is symmetrically arranged.

4. A large-capacity commercial air-cooled low-temperature freezer according to claim 3, characterized in that: Exhaust hoods (6) are installed on the top of the inner cavity of the partition plate (2) and the freezing zone (3), and the exhaust hoods (6) are connected to the exhaust ends of the circulating refrigeration fans (5) through pipelines.

5. A large-capacity commercial air-cooled low-temperature freezer according to claim 4, characterized in that: The bottom of the inner cavity of the partition plate (2) and the freezing zone (3) are both provided with a return air hood (7), and the inner wall surface of the partition plate (2) and the freezing zone (3) are both provided with a return air pipe (8), and the return air hood (7) is respectively connected to the return air end of the circulating refrigeration fan (5) through the return air pipe (8).

6. A large-capacity commercial air-cooled low-temperature freezer according to claim 1, characterized in that: The inner wall of the metal inner cover layer (12) is provided with a metal lining layer (14), and the metal lining layer (14) is located on the inner wall of the cabinet body (1).

7. A large-capacity commercial air-cooled low-temperature freezer according to claim 1, characterized in that: A vacuum valve (16) is provided on one side of the vacuum gauge (15), and the vacuum gauge (15) and the vacuum valve (16) are connected to the vacuum layer (13) via a pipeline.

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