Vertical refrigerator

Abstract

The invention discloses a vertical refrigerator which comprises a refrigerator body, a refrigerator door, a refrigerator door, a refrigerator door and a refrigerator door. The refrigerating system is arranged on the cabinet body and is constructed to be used for providing cooling capacity for the refrigerating cavity; the air duct assembly is constructed to be used for guiding air flowing through an evaporator of the refrigerating system to enter the refrigerating cavity, the air duct assembly defines at least one air duct, and each air duct is provided with a plurality of air outlets which are in fluid communication with the refrigerating cavity and are distributed at intervals from top to bottom; the air ducts extend in the vertical direction, and the channel sectional areas of the air ducts are narrowed in a gradient change mode from top to bottom. According to the vertical refrigerator, the problem of temperature uniformity in the refrigeration cavity can be effectively solved, and the cold air flow is uniformly distributed to the refrigeration cavity areas with different heights as much as possible, so that each corresponding interlayer of the refrigeration cavity is uniformly cooled, and the temperature uniformity of the refrigeration cavity of the vertical refrigerator is improved.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration, and in particular to a vertical refrigerator. Background Art

[0002] Freezers are common low-temperature storage equipment and are widely used in daily life. Air-cooled freezers have gradually replaced direct-cooled freezers due to their advantages such as less frost in the refrigeration chamber and accurate temperature control. With the improvement of the quality of life, the quality of food storage has become one of the important criteria for evaluating the quality of air-cooled freezers. In air-cooled freezers, the temperature uniformity of each refrigeration room not only affects the quality of food storage, but also affects the energy consumption of the entire machine. Therefore, the temperature uniformity of the refrigeration room is extremely important for evaluating the quality of freezers.

[0003] At present, the vertical freezers launched on the market usually use the evaporator fan to deliver the cold air to the refrigeration compartments on each layer of the refrigeration chamber through the air duct. Whether the air duct can evenly distribute the cold air to each layer of the refrigeration compartment will directly affect the refrigeration quality of the freezer. The cold air duct is usually equipped with multiple air outlets. Since the multiple air outlets are at different distances from the exhaust port of the evaporator fan, the air outlets close to the evaporator fan can supply more cold air to the refrigeration compartments on the corresponding layer, while the air outlets far from the evaporator fan can only supply a very small amount of cold air to the refrigeration compartments on the corresponding layer. This phenomenon is particularly obvious in vertical freezers. In vertical freezers, the temperature of the upper part is usually low and the temperature of the lower part is high, and the temperature uniformity is poor, which has an adverse effect on the food storage quality and the energy consumption of the whole machine. The optimal design of the air duct is not only related to the energy consumption of the whole machine, but also to the distribution and transmission loss of the cold capacity of the air-cooled refrigerator, which further affects the temperature uniformity of the refrigerator compartment and the preservation effect of the stored food. Therefore, it is particularly necessary to improve the air duct. Summary of the invention

[0004] In order to solve the above technical problems, an object of the present invention is to provide a vertical refrigerator with uniform temperature in the refrigeration chamber.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a vertical refrigerator, comprising: a cabinet body, having an inner liner, the inner side of which defines a refrigeration chamber; a refrigeration system, which is arranged on the cabinet body and is configured to provide cold air to the refrigeration chamber; and an air duct assembly, which is configured to guide air flowing through an evaporator of the refrigeration system into the refrigeration chamber, the air duct assembly defining at least one air duct, each of which is provided with a plurality of air outlets which are connected to the fluid of the refrigeration chamber and are spaced apart from top to bottom, each of which extends in the up-down direction and the channel cross-sectional area of ​​each of which narrows in a gradient manner from top to bottom.

[0006] In the above technical solution, preferably, each of the air ducts includes multiple channel sections distributed from top to bottom; in two adjacent channel sections above and below, the channel cross-sectional area of ​​the channel section located on the lower side is smaller than the channel cross-sectional area of ​​the channel section located on the upper side.

[0007] In the above technical solution, preferably, the number of the air ducts is a pair and the pair of air ducts are arranged side by side on the left and right.

[0008] In the above technical solution, preferably, the air duct assembly includes an air duct main body, a fan cover fixedly connected to the rear upper part of the air duct main body, and a fan, a fan chamber is defined between the rear upper part of the air duct main body and the fan cover, the fan is accommodated in the fan chamber, the fan chamber has an air suction port and a pair of air supply ports, the air duct main body defines a first air duct and a second air duct arranged side by side on the left and right, and the pair of air supply ports are respectively connected to the first air duct and the second air duct fluid.

[0009] In the above technical solution, preferably, the air duct main body includes a first rear side wall and a second rear side wall arranged side by side on the left and right, and the first rear side wall and the second rear side wall are both in a stepped structure. The first rear side wall defines the rear boundary of the first air duct, and the second rear side wall defines the rear boundary of the second air duct.

[0010] In the above technical solution, preferably, the air duct body is composed of one or more injection-molded parts.

[0011] In the above technical solution, preferably, the inner tank further defines an installation cavity, the installation cavity is fluidly connected to the refrigeration cavity, and the evaporator of the refrigeration system and the air duct assembly are installed in the installation cavity.

[0012] In the above technical solution, preferably, the air duct assembly further includes an evaporator baffle and a heat insulation plate, the evaporator baffle is located at the rear side of the lower part of the air duct body, and the heat insulation plate is located at the rear side of the evaporator baffle.

[0013] In the above technical solution, preferably, the heat insulation board is made of sponge material.

[0014] In the above technical solution, preferably, the refrigeration chamber is divided into an upper refrigeration area and a lower refrigeration area which are connected from top to bottom, the upper refrigeration area is provided with one or more layers of storage shelves, and the lower refrigeration area is provided with a plurality of storage drawers distributed from top to bottom.

[0015] The technical solution of the present invention can effectively solve the problem of temperature uniformity in the refrigerated cavity. It distributes the cold air flow as evenly as possible to the refrigerated cavity areas at different heights, so that each corresponding "compartment" of the refrigerated cavity is cooled evenly, thereby improving the temperature uniformity of the refrigerated cavity of the upright refrigerator; it improves the cooling efficiency and reduces energy consumption by optimizing the flow path of the cold air flow, which is conducive to reducing carbon emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram showing a vertical refrigerator according to an embodiment of the present application; Figure 2 Show Figure 1 Schematic diagram of the upright freezer after the door is opened; Figure 3 A longitudinal cross-sectional schematic diagram of a vertical refrigerator according to an embodiment of the present application is shown; Figure 4 A schematic diagram showing a partially cutaway and partially disassembled upright refrigerator according to one embodiment of the present application is shown; Figure 5 A disassembled schematic diagram of an air duct assembly according to the present application is shown; Figure 6 A schematic diagram showing the air flow inside a vertical refrigerator according to an embodiment of the present application is shown.

[0017] Among them: 100, upright freezer; 1, cabinet body; 2, cabinet door; 11, outer shell; 12, liner; 14, refrigeration chamber; 140, front opening; 141, upper refrigeration area; 142, lower refrigeration area; 15, storage rack; 16, storage drawer; 17, installation chamber; 3, evaporator; 171, return air outlet; 4, air duct assembly; 41, air duct body; 42, fan cover; 43, fan; 44, evaporator baffle; 45, insulation board; 411, front side Wall; 412, first rear side wall; 413, second rear side wall; 414, bottom wall; 46, fan chamber; 461, air intake; 462, first air outlet; 463, second air outlet; 464, first air supply; 465, second air supply; 47, first air duct; 48, second air duct; 471, third air outlet; 481, fourth air outlet; 491, fifth air outlet; 492, sixth air outlet; 493, arc-shaped guide wall; 494, convex rib. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] Reference below Figures 1 to 6 The upright refrigerator 100 according to the embodiment of the present invention will be described in detail.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4 , which shows the internal and external structures of the upright freezer 100. The upright freezer 100 is in a rectangular parallelepiped shape and includes a cabinet body 1 that can be supported on the ground and a cabinet door 2 assembled on the front side of the cabinet body 1. The cabinet door 2 is generally a foam cabinet door, which is rotatably mounted on the front of the cabinet body 1.

[0021] The cabinet 1 includes an outer shell 11 and an inner liner 12 located inside the outer shell 11. The inner liner 12 is usually composed of one or more shells. A foam material (not shown in the figure) is filled between the inner liner 12 and the outer shell 11, and the foam material can play a good role in heat preservation for the inner liner 12.

[0022] The inner side of the liner 12 defines a refrigeration chamber 14 for storing items. The refrigeration chamber 14 has a front opening 140. The cabinet door 2 can close and open the front opening 140 from the front side of the cabinet body 1, so that the user can take items from the refrigeration chamber 14 or store items to be refrigerated in the refrigeration chamber 14.

[0023] In this example, the refrigeration chamber 14 is divided into an upper refrigeration area 141 and a lower refrigeration area 142 that are connected from top to bottom. The upper refrigeration area 141 is an open area and one or more layers of shelves 15 can be arranged in the area; the lower refrigeration area 142 is provided with a plurality of storage drawers 16 distributed from top to bottom. The user can choose to place the items to be refrigerated on the shelves 15 or in the storage drawers 16.

[0024] The rear side wall of the inner tank 12 is partially recessed backwards to form an installation cavity 17. The installation cavity 17 is provided with an evaporator 3 of a refrigeration system capable of cooling the air inside the refrigeration cavity 14. The installation cavity 17 is arranged adjacent to the refrigeration cavity 14 and the two are fluidically connected to each other. The lower part of the installation cavity 17 has a return air port 171 that penetrates the refrigeration cavity 14, and the air in the refrigeration cavity 14 can flow into the installation cavity 17 from the return air port 171.

[0025] In the upright refrigerator 100, the cabinet 1 is further provided with the rest of the refrigeration system (not shown in the figure) between the outer shell 11 and the inner tank 12, including a compressor, a condenser, a throttling device, etc. These parts are usually installed at the lower part of the cabinet 1. The compressor, the condenser, the throttling device and the evaporator 3 are fluidly connected in sequence to form a refrigeration circuit for the circulation of the refrigerant of the refrigeration system.

[0026] The inner side of the inner tank 12 is also provided with an air duct assembly 4. In this example, the air duct assembly 4 is installed in the installation cavity 17 and is adjacent to the refrigeration cavity 14. The air duct assembly 4 is configured to guide the cold air flow passing through the evaporator 3 of the refrigeration system into the refrigeration cavity 14.

[0027] like Figure 4 and Figure 5 As shown, the air duct assembly 4 includes an air duct body 41 , a fan cover 42 fixed to the upper rear portion of the air duct body 41 , a fan 43 , an evaporator baffle 44 and a heat insulation board 45 .

[0028] The air duct body 41 is composed of one or more injection molded parts, and has a front side wall 411 and a pair of first and second rear side walls 412 and 413 arranged side by side, and a bottom wall 414. The fan cover 42 is installed at the rear upper part of the front side wall 411, and a fan chamber 46 is defined between the two. The fan 43 is installed in the fan chamber 46. The fan chamber 46 includes an air suction port 461 located at the rear of the fan cover 42, a pair of first air outlets 462 and a pair of second air outlets 463 located on the front side wall 411, and a first air supply port 464 and a second air supply port 465 located at the lower part of the fan cover 42. The upper part of the installation cavity 17 is fluidly connected with the air suction port 461, and the cold air flow cooled by the evaporator 3 will flow into the fan chamber 46 from the upper part of the installation cavity 17 via the air supply port 461. A pair of first air outlets 462 lead to the upper refrigerated area 141, and a pair of second air outlets 463 lead to the uppermost storage drawer 16 of the lower refrigerated area 142. In this example, a circular arc section is provided upstream of the first air supply port 464 and the second air supply port 465, which enables the cold air flow leaving the fan chamber 46 to move in the streamlined circular arc section, which is conducive to reducing the vortex generated when the cold air flow flows from the fan chamber to the corresponding air duct, reducing wind resistance, and thus improving flow efficiency; reducing noise and vibration caused by vortex turbulence.

[0029] A first air duct 47 is formed between the lower left portion of the front side wall 411 and the first rear side wall 412, and a second air duct 48 is formed between the lower right portion of the front side wall 411 and the second rear side wall 413. The first rear side wall 412 defines the rear boundary of the first air duct 47, and the second rear side wall 413 defines the rear boundary of the second air duct 48. The first air duct 47 and the second air duct 48 are arranged side by side from left to right and extend in the up-down direction. The upper portion of the first air duct 47 is fluidly connected to the first air supply port 464, and the upper portion of the second air duct 48 is fluidly connected to the second air supply port 465. The first air duct 47 has a plurality of third air outlets 471 located at the lower left portion of the front side wall 411, and these third air outlets 471 are arranged at intervals from top to bottom and lead to each layer of the storage drawers 16 of the lower refrigerated area 142, respectively. The second air duct 48 has a plurality of fourth air outlets 481 located at the lower right portion of the front side wall 411 . These fourth air outlets 481 are also arranged at intervals from top to bottom and lead to each layer of storage drawers 16 of the lower refrigeration area 142 , respectively.

[0030] The bottom wall 414 is provided with a fifth air outlet 491 and a sixth air outlet 492 arranged side by side; wherein the lower end of the first air duct 47 is fluidly connected to the fifth air outlet 491, and the lower end of the second air duct 48 is fluidly connected to the sixth air outlet 492. An arc-shaped guide wall 493 is provided at the front of the bottom wall 414, and the arc-shaped guide wall 493 will play the role of sending the cold air blown by the fifth air outlet 491 and the sixth air outlet 492 into the storage drawer 16 at the bottom. A plurality of convex ribs 494 are also provided on the lower wall surface of the bottom wall 414, and these convex ribs 494 can guide the air in the refrigeration chamber 14 into the return air outlet 171 in separate strands.

[0031] In the present application, in order to make the cold air escaping from the plurality of third air outlets 471 and the plurality of fourth air outlets 481 as uniform as possible, the channel cross-sectional areas of the first air duct 47 and the second air duct 48 are both configured to be narrowed from top to bottom in a gradient manner. In this way, the method of controlling the diameter of the air duct is realized to optimize the distribution of the air duct flow, ensure that each storage drawer 16 in the refrigeration chamber is evenly cooled, and improve the uniformity of the temperature inside the refrigeration chamber 14.

[0032] In this example, the first rear side wall 412 and the second rear side wall 413 are both stepped structures. Based on the structures of the first rear side wall 412, the second rear side wall 413 and the front side wall 411; the first air duct 47 and the second air duct 48 are both constructed to include a plurality of channel sections distributed from top to bottom; in the two adjacent channel sections above and below, the channel cross-sectional area of ​​the channel section located at the lower side is smaller than the channel cross-sectional area of ​​the channel section located at the upper side, so that the channel cross-sectional area of ​​the entire air duct is narrowed from top to bottom in a gradient change manner. In this example, the first rear side wall 412 and the second rear side wall 413 both include four steps; correspondingly, the first air duct 47 and the second air duct 48 both include four channel sections from top to bottom; the channel cross-sectional area of ​​the uppermost channel section is the widest, and the channel cross-sectional area of ​​the lowermost channel section is the narrowest. Each channel section is arranged with a corresponding air outlet, which is arranged at the lowermost side of the channel section, close to the intersection of the lower side adjacent channel section.

[0033] The evaporator baffle 44 is located at the rear side of the lower part of the air duct body 41, and the heat insulation board 45 is located at the rear side of the evaporator baffle 44. The evaporator 3 is located at the rear side of the heat insulation board 45. In this example, the heat insulation board 45 is made of sponge material.

[0034] like Figure 6 As shown, when the refrigeration system of the upright freezer 100 is working, the fan 43 is started; under the suction effect of the fan 43, the air in the refrigeration chamber 14 flows downward and is sent into the installation chamber 17 through the return air port 171; the air entering the installation chamber 17 is cooled when passing through the evaporator 3 and flows upward along the installation chamber 17; the cold air flow flows out from the upper part of the installation chamber 17 and enters the fan chamber 46 through the air suction port 461, and then under the action of the fan 43, part of the cold air flow will flow from a pair of first air outlets 462 to the upper refrigeration area 141; part of the cold air flow will flow from a pair of second air outlets 463 to the uppermost storage drawer 16 of the lower refrigeration area 142; and part of the cold air flow will be sent from the first air supply port 464 and the second air supply port 465 to the first air duct 47 and the second air duct 47 respectively. In the duct 48, the cold air flow entering the first air duct 47 will flow from top to bottom and flow from the multiple third air outlets 471 and the fifth air outlet 491 to the various storage drawers 16 of the lower refrigerated area 142 respectively; the cold air flow entering the second air duct 48 will flow from top to bottom and transport the cold air from the multiple fourth air outlets 481 and the sixth air outlet 493 to the various storage drawers 16 of the lower refrigerated area 142 respectively; since the upper refrigerated area 141 and the lower refrigerated area 142 are connected from top to bottom, and the cold air flows downward due to the influence of density, all these cold air flows will be sent into the installation cavity 17 from the return air port 171 again; in this way, the flow is continuously circulated, so as to achieve the goal of continuously keeping the items located in the upper refrigerated area 141 and the lower refrigerated area 142 in a preset low temperature environment.

[0035] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A vertical refrigerator, characterized in that: include: The cabinet has an inner container, the inner side of which defines a refrigeration chamber; A refrigeration system, disposed on the cabinet and configured to provide cold air to the refrigeration chamber; as well as The air duct assembly is constructed to guide the air flowing through the evaporator of the refrigeration system into the refrigeration chamber. The air duct assembly defines at least one air duct, and each of the air ducts is provided with a plurality of air outlets which are connected to the refrigeration chamber fluid and are spaced apart from top to bottom. Each of the air ducts extends in the up and down directions and the channel cross-sectional area of ​​each of the air ducts narrows in a gradient manner from top to bottom.

2. The vertical freezer according to claim 1, characterized in that: Each of the air ducts includes a plurality of channel sections distributed from top to bottom; in two upper and lower adjacent channel sections, the channel cross-sectional area of ​​the channel section located on the lower side is smaller than the channel cross-sectional area of ​​the channel section located on the upper side.

3. The upright freezer according to claim 1, characterized in that: The number of the air ducts is a pair and the pair of air ducts is arranged side by side on the left and right.

4. The upright freezer according to claim 3, characterized in that: The air duct assembly includes an air duct main body, a fan cover fixedly connected to the rear upper part of the air duct main body, and a fan. A fan chamber is defined between the rear upper part of the air duct main body and the fan cover. The fan is accommodated in the fan chamber. The fan chamber has an air suction port and a pair of air supply ports. The air duct main body defines a first air duct and a second air duct arranged side by side on the left and right, and the pair of air supply ports are respectively connected to the first air duct and the second air duct fluid.

5. The upright freezer according to claim 4, characterized in that: The air duct body includes a first rear side wall and a second rear side wall arranged side by side on the left and right, and the first rear side wall and the second rear side wall are both stepped structures. The first rear side wall defines the rear boundary of the first air duct, and the second rear side wall defines the rear boundary of the second air duct.

6. The upright freezer according to claim 4, characterized in that: The air duct body is composed of one or more injection-molded parts.

7. The upright freezer according to claim 4, characterized in that: The inner tank further defines an installation cavity, which is in fluid communication with the refrigeration cavity, and the evaporator of the refrigeration system and the air duct assembly are installed in the installation cavity.

8. The upright freezer according to claim 7, characterized in that: The air duct assembly further comprises an evaporator baffle and a heat insulation plate, wherein the evaporator baffle is located at the rear side of the lower part of the air duct body, and the heat insulation plate is located at the rear side of the evaporator baffle.

9. The upright freezer according to claim 8, characterized in that: The heat insulation board is made of sponge material.

10. The upright freezer according to claim 1, characterized in that: The refrigeration chamber is divided into an upper refrigeration area and a lower refrigeration area which are connected from top to bottom. The upper refrigeration area is provided with one or more layers of storage racks, and the lower refrigeration area is provided with a plurality of storage drawers distributed from top to bottom.

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