Refrigeration equipment

Abstract

The utility model relates to refrigeration equipment, which comprises a box body, the refrigeration air duct comprises a top air duct and a back air duct; the top air duct comprises a first air inlet; a second air inlet; the first air guide ring surrounds the peripheral side of the first air inlet; the second air guide ring surrounds the peripheral side of the second air inlet; the evaporator is arranged in the top air duct; the first fan is used for extracting air in the storage chamber through the first air inlet and conveying the air to a partial area of the evaporator; the second fan is used for extracting air in the storage chamber through the second air inlet and conveying the air to the other part of the area of the evaporator; a first air guide plate is formed on the first air guide ring, and the first air guide plate is obliquely arranged in the direction away from the second air guide ring and close to the evaporator; and a second air guide plate is formed on the second air guide ring, and the second air guide plate is obliquely arranged in the direction close to the first air guide ring and the evaporator, so that interference of air blown out of the first air opening and the second air opening can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration appliances, in particular to a refrigeration device. Background Art

[0002] Refrigeration equipment such as freezers, refrigerators, and wine cabinets utilize a phase change refrigerant to create a low-temperature environment for storing food and other items. They are essential household appliances for our daily lives. As living standards improve, the demands placed on refrigeration equipment are also increasing.

[0003] Conventional refrigeration equipment generally includes a box body and a box liner arranged in the box body, wherein a storage chamber is formed in the box liner. An evaporator is also arranged in the box body, and the evaporator is used to provide cold energy for the storage chamber to achieve cooling in the storage chamber.

[0004] Currently, some air-cooled refrigeration equipment typically features a cooling duct within the cabinet, housing an evaporator and a cooling fan. The fan provides wind power, drawing air from the storage room toward the evaporator for cooling, before returning it to the storage room for further cooling. Some larger refrigeration units often employ a dual-fan configuration to improve wind power and cooling efficiency. However, existing dual-fan configurations are prone to generating interfering vortices, which can affect the unit's performance. Utility Model Content

[0005] The purpose of the utility model is to provide a refrigeration device to improve the refrigeration efficiency of the refrigeration device.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] According to one aspect of the present invention, the present invention provides a refrigeration device, which includes: a box body, a storage chamber formed in the box body; a refrigeration air duct, arranged in the box body, including: a top air duct, arranged in the top area of ​​the storage chamber; the top air duct includes: a first air inlet, arranged on the bottom wall of the top air duct, the first air inlet connecting the top air duct and the storage chamber; a second air inlet, arranged on the bottom wall of the top air duct, the second air inlet connecting the top air duct and the storage chamber ; The second air inlet is arranged at a distance from the first air inlet; a first air guide ring is provided in the top air duct and is arranged around the circumference of the first air inlet, and a first air outlet is formed on the back side of the first air guide ring; a second air guide ring is provided in the top air duct and is arranged around the circumference of the second air inlet, and a second air outlet is formed on the back side of the second air guide ring; a back air duct is provided in the back area of ​​the storage chamber, and the top of the back air duct is connected to the top air duct; the back air duct is used to supply air to the storage chamber Indoor air supply; an evaporator is arranged in the top air duct and on the back side of the first air guide ring and the second air guide ring, and the evaporator is arranged at the first air outlet and the second air outlet; a first fan is arranged in the first air guide ring and at the first air inlet; the first fan is configured to extract air in the storage chamber through the first air inlet and transport it to a partial area of ​​the evaporator; a second fan is arranged in the second air guide ring and at the second air inlet; the second fan is configured to extract air in the storage chamber through the second air inlet and transport it to another partial area of ​​the evaporator; wherein a first air guide plate is formed on a side of the first air guide ring away from the second air guide ring, and the first air guide plate is inclined toward a direction away from the second air guide ring and close to the evaporator; a second air guide plate is formed on a side of the second air guide ring close to the first air guide ring, and the second air guide plate is inclined toward a direction close to the first air guide ring and close to the evaporator.

[0008] The above technical solution has the following advantages or beneficial effects: through the structural design of the first air guide plate, the air in the first air guide ring can be blown obliquely along the first air guide plate toward the evaporator, and blown toward the side away from the second air outlet, so that the wind blown out of the first air outlet and the second air outlet can reduce interference. Through the structural design of the second air guide plate, the air in the second air guide ring can be blown obliquely through the second air outlet toward the evaporator, and blown toward the side close to the first air outlet, so that the wind blown out of the first air outlet and the second air outlet can be inclined toward the same side, so that the wind blown out of the first air outlet and the second air outlet can reduce interference, so that the first air outlet and the second air outlet can be blown toward the evaporator respectively and evenly, thereby reducing the noise at the first air outlet and the second air outlet. When the speeds of the first fan and the second fan are the same, the air volume flowing through the evaporator from the first air outlet and the second air outlet can be increased, thereby improving the cooling efficiency.

[0009] In some embodiments of the present application, the bottom wall of the top air duct includes: an inclined wall, the inclined wall is located at the front end supporting wall of the bottom wall of the top air duct, and the supporting wall is located on the back side of the inclined wall; the first air inlet and the second air inlet are arranged at intervals on the inclined wall, and the evaporator is arranged above the supporting wall; the inclined wall is arranged to be inclined upward toward the side away from the evaporator.

[0010] The above technical solution has the following advantages or beneficial effects: by arranging the inclined wall, the first air inlet and the second air inlet can be arranged at an angle in front of the evaporator, respectively, and the first fan and the second fan can be arranged at an angle in front of the evaporator, respectively. In this way, in conjunction with the structure of the first fan and the second fan, the air in the storage room can be quickly drawn into the first air guide ring by the first air inlet and the second air guide ring by the second air inlet, respectively, and blown toward the evaporator at an angle, thereby increasing the windward area of ​​the evaporator, improving the air intake efficiency, and thereby improving the heat exchange efficiency between the air and the evaporator, thereby improving the cooling efficiency of the refrigeration equipment.

[0011] In some embodiments of the present application, the angle α between the inclined wall and the top wall of the storage chamber satisfies: 15°<α<25°.

[0012] The above technical solution has the following advantages or beneficial effects: by setting 15°<α<25°, the inclined wall can have a sufficient inclination angle, so that the evaporator has a sufficient windward area, thereby improving the heat exchange efficiency between the air and the evaporator; and sufficient space can be provided on the inclined wall, which is beneficial to improving the air intake efficiency at the first air inlet and the second air inlet, thereby improving the cooling efficiency.

[0013] In some embodiments of the present application, the first air outlet and the second air outlet are arranged side by side on the front side of the evaporator; and the evaporator is extended along the arrangement direction of the first air outlet and the second air outlet.

[0014] The above technical solution has the following advantages or beneficial effects: by extending the evaporator along the arrangement direction of the first air outlet and the second air outlet, the first air outlet can be arranged opposite to a part of the evaporator, and the second air outlet can be arranged opposite to another part of the evaporator.

[0015] In some embodiments of the present application, an angle β1 between the inclined direction of the first air guide plate and the extending direction of the evaporator satisfies: 40°<β1<60°.

[0016] The above technical solution has the following advantages or beneficial effects: by adjusting 40°<β1<60°, the first air guide plate can have a sufficient inclination angle, so that when the wind in the first air guide circle is blown out through the first air outlet, it can be offset to the side away from the second air outlet, so that the wind blown out of the first air outlet and the second air outlet can reduce interference; and the inclination direction of the first air guide plate and the heat dissipation fins of the evaporator can have a sufficient angle, so that the wind blown out of the first air outlet can smoothly enter the interior of the evaporator, ensuring the heat exchange efficiency with the evaporator 4, thereby improving the cooling efficiency.

[0017] In some embodiments of the present application, an angle β2 between the inclined direction of the second air guide plate and the extending direction of the evaporator satisfies: 40°<β2<60°.

[0018] The above technical solution has the following advantages or beneficial effects: by 40°<β2<60°, the second air guide plate can have a sufficient inclination angle, so that when the wind in the second air guide circle is blown out through the second air outlet, it can be offset to the side away from the first air outlet, so that the first air outlet and the second air outlet can be blown toward the evaporator evenly respectively; and the inclination direction of the second air guide plate and the heat dissipation fins of the evaporator can have a sufficient angle, so that the wind blown out of the second air outlet can smoothly enter the interior of the evaporator, ensuring the heat exchange efficiency with the evaporator, thereby improving the cooling efficiency.

[0019] In some embodiments of the present application, a connecting rib is formed at the connection between the first air guide plate and the second air guide ring, and a separating rib is provided between the connecting rib and the evaporator; the connecting rib is arranged upward from the inclined wall and inclined toward the direction close to the evaporator; one side of the separating rib is connected to the connecting rib, and the other side of the separating rib is connected to the evaporator.

[0020] The above technical solution has the following advantages or beneficial effects: the first air guide ring and the second air guide ring can be isolated from each other through the separating ribs, and the first air outlet and the second air outlet can be isolated from each other, reducing the mutual interference, intersection, and offset between the wind blown out of the first air outlet and the second air outlet, so that the wind blown out of the first air outlet and the second air outlet can be evenly blown to different areas of the evaporator, which is conducive to improving the cooling efficiency.

[0021] In some embodiments of the present application, a drainage portion is provided at the rear end of the support wall and is provided with a drainage hole therein; the drainage portion is located above the top of the back air duct.

[0022] The above technical solution has the following advantages or beneficial effects: When the evaporator defrosts, the evaporator water can flow onto the supporting wall. Condensed water or defrosted water on the supporting wall can flow into the back duct through the drainage holes and be discharged from the bottom of the back duct. In addition, condensed water on the inclined wall can also flow smoothly onto the supporting wall and into the back duct through the drainage holes.

[0023] In some embodiments of the present application, the top air duct includes: a first enclosure rib formed on the top surface of the inclined wall and arranged at the peripheral edge of the first air inlet; the first enclosure rib is located on the inner side of the first air guide ring; a second enclosure rib is formed on the top surface of the inclined wall and arranged at the peripheral edge of the second air inlet; the second enclosure rib is located on the inner side of the second air guide ring; the first fan is arranged at the first enclosure rib, and the second fan is arranged at the second enclosure rib.

[0024] The above technical solution has the following advantages or beneficial effects: when the first fan is running, the air in the storage chamber can enter the first enclosure rib through the first air inlet, and be blown into the interior of the first air guide ring by the first enclosure rib, and then be blown into the evaporator through the first air outlet on the back of the first air guide ring, thereby improving the air intake efficiency at the first air inlet. When the second fan is running, the air in the storage chamber can enter the second enclosure rib through the second air inlet, and be blown into the interior of the second air guide ring by the second enclosure rib, and then be blown into the evaporator through the second air outlet on the back of the second air guide ring, thereby improving the air intake efficiency at the second air inlet.

[0025] In some embodiments of the present application, the first fan includes: a first motor, fixed above the first enclosure rib; a first impeller, provided at the output end of the first motor, and extending into and arranged on the inner side of the first enclosure rib; the second fan includes: a second motor, fixed above the second enclosure rib; a second impeller, provided at the output end of the second motor, and extending into and arranged on the inner side of the first enclosure rib.

[0026] The above technical solution has the following advantages or beneficial effects: the first motor can drive the first impeller to rotate inside the first enclosure rib, and the first impeller can generate suction inside the first enclosure rib. This suction can draw air from the storage chamber through the first air inlet, so that the air can be smoothly blown into the first air guide ring through the first enclosure rib, thereby improving the air intake efficiency at the first air inlet. The second motor can drive the second impeller to rotate inside the second enclosure rib, and the second impeller can generate suction inside the second enclosure rib. This suction can draw air from the storage chamber through the second air inlet, so that the air can be smoothly blown into the second air guide ring through the second enclosure rib, thereby improving the air intake efficiency at the second air inlet.

[0027] Details of other embodiments are included in the detailed description and accompanying drawings.

[0028] The effects of the present invention are not limited to the effects mentioned above, and those skilled in the art can clearly understand other effects not mentioned from the description of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of refrigeration equipment in some embodiments of the present utility model.

[0030] Figure 2 yes Figure 1 Front view of .

[0031] Figure 3 yes Figure 2 Middle AA section view.

[0032] Figure 4 yes Figure 3 A partial enlarged schematic diagram.

[0033] Figure 5 yes Figure 4 Schematic diagram of the structure of the top air duct.

[0034] Figure 6 yes Figure 5 Schematic diagram of the structure from another perspective.

[0035] Figure 7 yes Figure 5 A top view of .

[0036] Figure 8 yes Figure 7 Middle BB section view.

[0037] Figure 9 yes Figure 5 A schematic diagram of the decomposition structure.

[0038] Figure 10 yes Figure 9Schematic diagram of the structure of the middle and upper air duct shell.

[0039] Figure 11 yes Figure 10 Schematic diagram of the structure from another perspective.

[0040] Figure 12 yes Figure 10 A top view of .

[0041] Figure 13 yes Figure 12 Schematic diagram of the structure from another perspective.

[0042] Figure 14 yes Figure 7 Schematic diagram of the structure from another perspective.

[0043] The accompanying drawings are described as follows: 1. Box body; 10. Storage room; 11. Box door; 12. Press chamber; 13. Drain pipe; 2. Box liner; 3. Compressor; 4. Evaporator; 41. Evaporation tube; 411. Straight pipe section; 412. Bend pipe section; 42. Heat dissipation fin; 5. Refrigeration duct; 51. Top duct; 510. Upper duct shell; 5101. First air inlet; 5102. Second air inlet; 5103. Ventilation port; 511. Inclined wall; 5111. First enclosure rib; 5112. First fixing portion; 5113. Second enclosure rib ;5114, second fixing part; 512, supporting wall; 513, first air guide ring; 5130, first air outlet; 5131, first air guide plate; 514, second air guide ring; 5140, second air outlet; 5141, second air guide plate; 515, drainage part; 5151, drainage hole; 516, connecting rib; 517, separating rib; 52, back air duct; 520, rear air duct shell; 53, first fan; 531, first motor; 532, first impeller; 54, second fan; 541, first motor; 542, first impeller. DETAILED DESCRIPTION

[0044] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various variations in different embodiments without departing from the scope of the present invention, and that the descriptions and illustrations herein are intended to be illustrative in nature and not to limit the present invention.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the described features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0048] Figure 1 It is a structural schematic diagram of refrigeration equipment in some embodiments of the present utility model. Figure 2 yes Figure 1 Front view of .

[0049] like Figure 1 As shown, the refrigeration device provided in an embodiment of the present invention may include a housing 1. The housing 1 may be configured as an external housing for the refrigeration device. The housing 1 may typically have a hollow rectangular structure. It should be noted that in other embodiments, the external shape of the housing 1 may be designed as desired and is not limited here. The interior of the housing 1 may be used to provide installation space.

[0050] In some embodiments, a storage chamber 10 may be formed in the box body 1. The storage chamber 10 may be used as an independent storage space, and may be used as a refrigeration chamber, a temperature-changing chamber, a freezer, etc., to meet different storage needs such as refrigeration and freezing according to the types of stored items.

[0051] In some embodiments, a plurality of storage chambers 10 may be provided in the box body 1. The plurality of storage chambers 10 may be arranged in the box body 1 in a manner of being divided vertically or horizontally.

[0052] like Figure 1 As shown, in some embodiments, a door 11 may be provided on the front side of the refrigerator body 1. The door 11 may be used to open and close the storage compartment 10. The door 11 may be connected to the refrigerator body 1 via a hinge, so that the refrigerator door 11 can rotate about the axis of the hinge to open and close the refrigerator door 11, thereby opening and closing the corresponding storage compartment 10.

[0053] In some embodiments, multiple doors 11 may be provided. Multiple doors 11 may be provided in a one-to-one correspondence with multiple storage chambers 10. It should be noted that, in other embodiments, multiple doors 11 may open and close a storage chamber 10 at the same time.

[0054] like Figure 1 As shown, in some embodiments, a box liner 2 may be provided within the box body 1. A storage compartment 10 may be formed within the box liner 2. Multiple box liners 2 may be provided within the box body 1. The multiple box liners 2 may be arranged within the box body 1 in a vertically separated or horizontally separated manner. Each box liner 2 may form one or more storage compartments 10.

[0055] In some embodiments, the cabinet 1 may be provided with two cabinet linings 2, which may be a refrigerator lining 2 and a freezer lining 2, respectively. The refrigerator lining 2 and the freezer lining 2 may be arranged adjacent to each other. A refrigerator compartment may be formed within the refrigerator lining 2. A freezer compartment may be formed within the freezer lining 2. The freezer lining 2 may be arranged below the refrigerator lining 2, such that the freezer compartment is spaced apart and located below the bottom of the refrigerator compartment.

[0056] like Figure 1 As shown, in some embodiments, a refrigeration system may be provided in the cabinet 1. The refrigeration system may be provided inside the cabinet 1. The refrigeration system may be used to provide cold air inside the refrigerator to maintain a low temperature environment in each storage chamber 10.

[0057] In some embodiments, the refrigeration system may include a compressor 3. The compressor 3 may compress the refrigerant into high-temperature and high-pressure refrigerant vapor.

[0058] In some embodiments, the refrigeration system may include a condenser (not shown). The compressor 3 may deliver the compressed refrigerant to the condenser. The condenser may condense the high-temperature and high-pressure refrigerant vapor.

[0059] In some embodiments, the refrigeration system may include a throttling device (not shown). The condenser may deliver the condensed refrigerant to the throttling device. The throttling device may be a capillary tube. The throttling device may be used to throttle and reduce the pressure of the refrigerant.

[0060] In some embodiments, the refrigeration system may include an evaporator 4. The throttling device may deliver the throttled and depressurized refrigerant to the evaporator 4. The evaporator 4 may be used to evaporate and boil the refrigerant vapor so as to absorb heat from the surrounding medium.

[0061] In some embodiments, the compressor 3 , the condenser, the throttling device, and the evaporator 4 may be sequentially connected to form a refrigeration circuit. Refrigerant may circulate in the refrigeration circuit to achieve cooling of the interior of the cabinet 1 .

[0062] Figure 3 yes Figure 2 Middle AA section view.

[0063] like Figure 3 As shown, in some embodiments, a press chamber 12 may be provided within the housing 1. The press chamber 12 may be provided in the bottom area of ​​the housing 1. The press chamber 12 may be located at the rear lower portion of the storage chamber 10. The press chamber 12 may be located at the rear lower portion of the freezer liner 2. The compressor 3, condenser, etc. may be provided within the press chamber 12. When the compressor 3 and condenser are operating, they will each dissipate heat, causing the temperature within the press chamber 12 to rise.

[0064] It should be noted that, in some other embodiments, the press chamber 12 may also be arranged at other positions in the box body 1 .

[0065] Figure 4 yes Figure 3 A partial enlarged schematic diagram.

[0066] like Figure 3 and Figure 4 As shown, in some embodiments, the refrigeration device may include a refrigeration duct 5. The refrigeration duct 5 may be provided with an air inlet. The air inlet may connect the interior of the refrigeration duct 5 with the storage chamber 10. In this way, air in the storage chamber 10 may enter the refrigeration duct 5 to be cooled and refrigerated to form cold air.

[0067] In some embodiments, the evaporator 4 can be disposed within the cooling duct 5. When the air in the storage chamber 10 enters the cooling duct 5 and flows through the evaporator 4, the air can exchange heat with the evaporator 4. The evaporator 4 absorbs heat from the air, cooling the air and condensing it to form a large amount of cold air.

[0068] In some embodiments, the refrigeration device may be provided with an air supply port (not shown). The air supply port may connect the interior of the refrigeration duct 5 and the storage chamber 10. When air in the storage chamber 10 enters the refrigeration duct 5 through the air inlet, the cooled air generated by the cooling in the refrigeration duct 5 can be transported to the interior of the storage chamber 10 through the air supply port, cooling the interior of the storage chamber 10 and achieving the refrigeration function of the storage chamber 10. In this way, a cooling air circulation can be formed between the storage chamber 10 and the interior of the refrigeration duct 5 through the air inlet and air supply port.

[0069] like Figure 3 and Figure 4 As shown, in some embodiments, the cooling air duct 5 may include a top air duct 51. The top air duct 51 may be located in the top area of ​​the storage chamber 10. An air inlet may be located on the bottom wall of the top air duct 51. The air inlet may connect the interior of the top air duct 51 with the top area of ​​the storage chamber 10. In this way, air in the storage chamber 10 may enter the top air duct 51 from the top area through the air inlet for cooling.

[0070] In some embodiments, the refrigeration device may include an upper duct housing 510. The upper duct housing 510 may be disposed on the top wall of the storage chamber 10. The top duct 51 may be formed between the upper duct housing 510 and the inner top wall of the storage chamber 10. An air inlet may be provided on the bottom wall of the upper duct housing 510.

[0071] like Figure 3 and Figure 4 As shown, in some embodiments, the cooling air duct 5 may include a back duct 52. The back duct 52 may be located in the back area of ​​the storage chamber 10. The top of the back duct 52 communicates with the top duct 51. The air supply vents may be located on the sidewalls of the back duct 52. This allows air in the top duct 51 to flow into the back duct 52, where it is then transported through the air supply vents into the storage chamber 10, thereby cooling the storage chamber 10.

[0072] In some embodiments, the refrigeration device may include a rear air duct housing 520. The rear air duct housing 520 may be disposed on the rear wall of the storage chamber 10. The top air duct 51 may be formed between the rear air duct housing 520 and the rear wall of the storage chamber 10. The air outlet may be provided on the front wall or other side wall of the rear air duct housing 520.

[0073] In some embodiments, the evaporator 4 can be located in the top duct 51. The evaporator 4 can be located on the back side of the air inlet. In this way, air from the storage compartment 10 enters the top duct 51 through the air inlet, flows through the evaporator 4, and forms a large amount of cold air. This cold air then enters the back duct 52 and is then transported into the storage compartment 10 through the air outlet, thereby achieving cooling within the storage compartment 10.

[0074] In some embodiments, the back duct 52 may be provided with multiple air outlets. These multiple air outlets may be spaced apart on the back duct 52. These multiple air outlets may be spaced apart on the rear duct housing 520. These multiple air outlets may be spaced apart vertically. These multiple air outlets may also be spaced apart horizontally. In this way, the cold air entering the back duct 52 from the top duct 51 can be delivered to different areas of the storage compartment 10 through the multiple air outlets, thereby improving the uniformity of the temperature distribution within the storage compartment 10.

[0075] It should be noted that the number and positions of the air outlets on the back air duct 52 can be adjusted as needed and are not limited here.

[0076] Figure 5 yes Figure 4 Schematic diagram of the structure of the top air duct 51. Figure 6 yes Figure 5 Schematic diagram of the structure from another perspective.

[0077] like Figure 4 、 Figure 5 and Figure 6 As shown, in some embodiments, the air inlet may include a first air inlet 5101 and a second air inlet 5102. The first air inlet 5101 and the second air inlet 5102 may be arranged on the bottom wall of the top air duct 51, spaced apart from each other. The first air inlet 5101 and the second air inlet 5102 may be arranged on the bottom wall of the upper air duct housing 510, spaced apart from each other. The first air inlet 5101 and the second air inlet 5102 may respectively connect the interior of the top air duct 51 and the top area of ​​the storage chamber 10. In this way, air in the storage chamber 10 may enter the interior of the top air duct 51 through the first air inlet 5101 and the second air inlet 5102, respectively, thereby increasing the air intake of the cooling duct 5 and thereby improving the air circulation efficiency and cooling efficiency between the storage chamber 10 and the cooling duct 5.

[0078] In some embodiments, a first grille (not shown) may be provided at the first air inlet 5101 . In this way, the first grille can prevent foreign matter in the storage chamber 10 from entering the top air duct 51 through the first air inlet 5101 .

[0079] In some embodiments, a second grille (not shown) may be provided at the second air inlet 5102 . In this way, the second grille may prevent foreign matter in the storage chamber 10 from entering the top air duct 51 through the second air inlet 5102 .

[0080] like Figure 5 and Figure 6As shown, in some embodiments, the refrigeration device may include a first fan 53. The first fan 53 may be arranged inside the top air duct 51. The first fan 53 may be arranged at the first air inlet 5101. The first fan 53 may be an axial flow fan. The first fan 53 is configured to extract air from the storage chamber 10 through the first air inlet 5101 and transport it to a partial area of ​​the evaporator 4. In this way, the first fan 53 can provide wind force to the first air inlet 5101, so that the air in the storage chamber 10 actively enters the top air duct 51 through the first air inlet 5101, and comes into contact with the evaporator 4 in the top air duct 51 to reduce its temperature.

[0081] In some embodiments, the refrigeration device may include a second fan 54. The second fan 54 may be located inside the top air duct 51. The second fan 54 may be located at the second air inlet 5102. The second fan 54 may be an axial flow fan. The second fan 54 is configured to extract air from the storage chamber 10 through the second air inlet 5102 and deliver it to a portion of the evaporator 4. In this way, the second fan 54 can provide wind force to the second air inlet 5102, so that the air in the storage chamber 10 actively enters the top air duct 51 through the second air inlet 5102, and comes into contact with the evaporator 4 in the top air duct 51 to reduce its temperature.

[0082] Figure 7 yes Figure 5 A top view of .

[0083] like Figure 5 and Figure 7 As shown, in some embodiments, a first air guide ring 513 may be provided in the top air duct 51. The first air guide ring 513 may be arranged around the first air inlet 5101. The first air guide ring 513 may form a semi-enclosed structure. The evaporator 4 may be provided on the back side of the first air guide ring 513. A first air outlet 5130 may be formed on the back side of the first air guide ring 513. The first air outlet 5130 may be arranged toward the evaporator 4. A portion of the evaporator 4 may be arranged at the first air outlet 5130. In this way, the air in the storage chamber 10 can enter the first air guide ring 513 through the first air inlet 5101, and then be blown to a portion of the evaporator 4 through the first air outlet 5130.

[0084] In some embodiments, a second air guide ring 514 may be provided in the top air duct 51. The second air guide ring 514 may be arranged around the second air inlet 5102. The second air guide ring 514 may form a semi-enclosed structure. The evaporator 4 may be provided on the back side of the second air guide ring 514. A second air outlet 5140 may be formed on the back side of the second air guide ring 514. Another part of the evaporator 4 may be arranged at the second air outlet 5140. The second air outlet 5140 may be arranged toward the evaporator 4. In this way, the air in the storage chamber 10 can enter the interior of the second air guide ring 514 through the second air inlet 5102, and then be blown to another part of the evaporator 4 through the second air outlet 5140.

[0085] like Figure 5 and Figure 7 As shown, in some embodiments, a first air guide plate 5131 may be formed on a side of the first air guide ring 513 away from the second air guide ring 514. The first air guide plate 5131 may be arranged tilted in a direction away from the second air guide ring 514 and closer to the evaporator 4. The first air guide plate 5131 is located at a side edge of the first air outlet 5130. Thus, the structural design of the first air guide plate 5131 allows the first air outlet 5130 of the first air guide ring 513 to be tilted toward the side away from the second air guide ring 514. When air from the storage chamber 10 enters the first air guide ring 513 through the first air inlet 5101, the air in the first air guide ring 513 is blown obliquely along the first air guide plate 5131 toward the evaporator 4 and toward the side away from the second air outlet 5140. This reduces interference between the air blown out of the first air outlet 5130 and the second air outlet 5140, allowing the air blown out of the first air outlet 5130 and the second air outlet 5140 to be blown toward the evaporator 4 evenly, thereby reducing noise at the first air outlet 5130 and the second air outlet 5140. When the first fan 53 and the second fan 54 rotate at the same speed, the air volume flowing through the first air outlet 5130 and the evaporator 4 can be increased, thereby improving cooling efficiency.

[0086] In some embodiments, a second air guide plate 5141 may be formed on a side of the second air guide ring 514 near the first air guide ring 513. The second air guide plate 5141 may be arranged tilted toward the first air guide ring 513 and the evaporator 4. The second air guide plate 5141 is located at a side edge of the second air outlet 5140. Thus, the structural design of the second air guide plate 5141 allows the second air outlet 5140 of the second air guide ring 514 to be tilted toward the side near the first air guide ring 513. When air from the storage chamber 10 enters the second air guide ring 514 through the second air inlet 5102, the air in the second air guide ring 514 is blown obliquely toward the evaporator 4 along the second air guide plate 5141, and toward the side closer to the first air outlet 5130. This allows the air blown out of the first air outlet 5130 and the second air outlet 5140 to be tilted toward the same side, reducing interference between the air blown out of the first air outlet 5130 and the second air outlet 5140. This allows the air blown out of the first air outlet 5130 and the second air outlet 5140 to be blown toward the evaporator 4 evenly, thereby reducing noise at the first air outlet 5130 and the second air outlet 5140. When the first fan 53 and the second fan 54 rotate at the same speed, the air volume flowing through the evaporator 4 from the second air outlet 5140 can be increased, thereby improving cooling efficiency.

[0087] Figure 8 yes Figure 7 Middle BB section view.

[0088] like Figure 7 and Figure 8As shown, in some embodiments, the bottom wall of the top air duct 51 may include an inclined wall 511. The inclined wall 511 may be located in the front end area of ​​the bottom wall of the top air duct 51. The first air inlet 5101 and the second air inlet 5102 may be arranged at intervals on the inclined wall 511. The first fan 53 may be arranged obliquely above the inclined wall 511, and the first fan 53 may be arranged opposite to the first air inlet 5101. The second fan 54 may be arranged obliquely above the inclined wall 511, and the second fan 54 may be arranged opposite to the second air inlet 5102. The evaporator 4 may be arranged on the back side of the inclined wall 511. The inclined wall 511 may be arranged to be inclined upward toward the side away from the evaporator 4. The inclined wall 511 may be arranged to be inclined toward the front and above. By arranging the inclined wall 511, the first air inlet 5101 and the second air inlet 5102 can be arranged obliquely in front of the evaporator 4, respectively, and the first fan 53 and the second fan 54 can be arranged obliquely in front of the evaporator 4. In this way, combined with the axial flow fan structure of the first fan 53 and the second fan 54, the air in the storage chamber 10 can be quickly drawn into the first air guide ring 513 by the first air inlet 5101 and into the second air guide ring 514 by the second air inlet 5102, respectively, and blown obliquely toward the evaporator 4, thereby increasing the frontal area of ​​the evaporator 4 and improving the air intake efficiency, thereby improving the heat exchange efficiency between the air and the evaporator 4 and the cooling efficiency of the refrigeration equipment.

[0089] In some embodiments, the bottom wall of the top air duct 51 may include a support wall 512. The support wall 512 may be located on the back side of the inclined wall 511. The evaporator 4 may be disposed above the support wall 512. The evaporator 4 may be supported on the support wall 512. The inclined wall 511 may extend obliquely from the front end of the support wall 512 toward the upper front side. In this manner, the support wall 512 may be used to mount the evaporator 4, such that the first air inlet 5101 and the second air inlet 5102 on the inclined wall 511 are arranged obliquely in front of the evaporator 4.

[0090] like Figure 8 As shown, in some embodiments, the angle α between the inclined direction of the inclined wall 511 and the top wall of the storage chamber 10 can satisfy the following requirement: α>15°. Thus, by ensuring that α>15°, the inclined wall 511 has a sufficient inclination angle, providing the evaporator 4 with a sufficient frontal area, thereby improving air intake efficiency and the heat exchange efficiency between the air and the evaporator 4.

[0091] In some embodiments, the angle α between the inclined direction of the inclined wall 511 and the top wall of the storage chamber 10 can satisfy the following: α<25°. Thus, by ensuring that α<25°, sufficient space is left on the inclined wall 511 to accommodate larger first and second fans 53, 54. This improves the air intake efficiency at the first and second air inlets 5101, 5102, and thereby enhances cooling efficiency.

[0092] In some embodiments, the angle α between the inclined direction of the inclined wall 511 and the top wall of the storage chamber 10 can satisfy the following: 15° < α < 25°. Thus, by ensuring that 15° < α < 25°, the inclined wall 511 has a sufficient inclination angle, providing the evaporator 4 with sufficient frontal area, thereby improving the heat exchange efficiency between the air and the evaporator 4. Furthermore, sufficient space is provided on the inclined wall 511, which helps improve the air intake efficiency at the first air inlet 5101 and the second air inlet 5102, thereby improving the cooling efficiency.

[0093] In some embodiments, the angle α between the inclined direction of the inclined wall 511 and the top wall of the storage chamber 10 can satisfy: α = 20°. Thus, by α = 20°, the inclined wall 511 can have a relatively reasonable inclination angle and meet the requirement of sufficient space above the inclined wall 511.

[0094] like Figure 4 and Figure 8 As shown, in some embodiments, a vent 5103 may be formed at the rear end of the inclined wall 511. The vent 5103 may be located at the rear end of the bottom wall of the top air duct 51. The vent 5103 may be located at the top end of the back air duct 52. The rear end of the top air duct 51 may be connected to the top end of the back air duct 52 via the vent 5103. In this way, air in the top air duct 51, after being cooled by the evaporator 4, may flow downward through the vent 5103 into the back air duct 52, and then may be delivered into the storage chamber 10 through the air supply port of the back air duct 52.

[0095] Figure 9 yes Figure 5 A schematic diagram of the decomposition structure. Figure 10 yes Figure 9 Schematic diagram of the structure of the middle and upper air duct shell 510.

[0096] like Figure 8 、 Figure 9 and Figure 10As shown, in some embodiments, a drainage portion 515 may be protruded from the rear end of the support wall 512. The drainage portion 515 may be extended downward. The drainage portion 515 may be arranged at the vent 5103. The drainage portion 515 may be located above the top of the back duct 52. A drainage hole 5151 is provided in the drainage portion 515. When the evaporator 4 defrosts, the water in the evaporator 4 may flow onto the support wall 512. The condensed water or defrosted water on the support wall 512 may flow into the back duct 52 through the drainage hole 5151 and be discharged from the bottom of the back duct 52. In addition, the condensed water on the inclined wall 511 may also flow smoothly onto the support wall 512 and flow into the back duct 52 through the drainage hole 5151.

[0097] like Figure 3 As shown, in some embodiments, a downwardly extending drain pipe 13 may be provided at the bottom of the back duct 52. The lower end of the drain pipe 13 may extend into the press chamber 12. A water receiving pan 14 may be provided within the press chamber 12. The lower end of the drain pipe 13 may extend to the water receiving pan 14. In this way, condensed water or defrost water within the back duct 52 can be drained through the drain pipe 13 into the water receiving pan 14, where it is collected, or evaporated from the water receiving pan 14 into the air within the press chamber 12.

[0098] Figure 11 yes Figure 10 Schematic diagram of the structure from another perspective. Figure 12 yes Figure 10 A top view of .

[0099] like Figure 11 and Figure 12 As shown, in some embodiments, a first enclosure rib 5111 may be provided in the top air duct 51. The first enclosure rib 5111 may be formed on the top surface of the inclined wall 511. The first enclosure rib 5111 may be provided at the peripheral edge of the first air inlet 5101. The first enclosure rib 5111 may be annular and arranged around the peripheral edge of the first air inlet 5101. The first enclosure rib 5111 may be located inside the first air guide ring 513. The first fan 53 may be provided at the first enclosure rib 5111. In this way, when the first fan 53 is running, the air in the storage chamber 10 may enter the first enclosure rib 5111 through the first air inlet 5101, and be blown into the interior of the first air guide ring 513 by the first enclosure rib 5111, and then blown into the evaporator 4 through the first air outlet 5130 on the back side of the first air guide ring 513.

[0100] In some embodiments, the first fan 53 may include a first motor 531 and a first impeller 532. The first motor 531 may be fixed above the first enclosure rib 5111. The output end of the first motor 531 may be arranged toward the first air inlet 5101. The first impeller 532 is disposed at the output end of the first motor 531. The first impeller 532 may extend into and be arranged inside the first enclosure rib 5111. In this way, the first motor 531 may drive the first impeller 532 to rotate inside the first enclosure rib 5111. The first impeller 532 may generate suction inside the first enclosure rib 5111. This suction may draw air from the storage chamber 10 through the first air inlet 5101, allowing the air to be smoothly blown into the first air guide ring 513 through the interior of the first enclosure rib 5111, thereby improving the air intake efficiency at the first air inlet 5101.

[0101] like Figure 12 As shown, in some embodiments, a first fixing portion 5112 may be provided on the outer periphery of the first enclosure rib 5111. The first fixing portion 5112 may be disposed within the first air guide ring 513. The first motor 531 may be fixed to the first fixing portion 5112. In this manner, the first motor 531 may be fixed to the first fixing portion 5112 using screws, thereby securing the first motor 531 above the first enclosure rib 5111.

[0102] In some embodiments, there may be multiple first fixing portions 5112. The multiple first fixing portions 5112 may be divided into two groups, and the two groups of first fixing portions 5112 may be respectively disposed on opposite sides of the first enclosure rib 5111. In this way, one side of the first motor 531 may be fixed to one group of first fixing portions 5112, and the other side of the first motor 531 may be fixed to the other group of first fixing portions 5112. This allows the opposite sides of the first motor 531 to be fixed to the two groups of first fixing portions 5112, thereby improving the stability of the installation of the first motor 531.

[0103] like Figure 11 and Figure 12 As shown, in some embodiments, a second enclosure rib 5113 may be provided in the top air duct 51. The second enclosure rib 5113 may be formed on the top surface of the inclined wall 511. The second enclosure rib 5113 may be provided at the peripheral edge of the second air inlet 5102. The second enclosure rib 5113 may be annular and arranged around the peripheral edge of the second air inlet 5102. The second enclosure rib 5113 may be located inside the second air guide ring 514. The second fan 54 may be provided at the second enclosure rib 5113. In this way, when the second fan 54 is in operation, the air in the storage chamber 10 may enter the second enclosure rib 5113 through the second air inlet 5102, and be blown into the interior of the second air guide ring 514 by the second enclosure rib 5113, and then blown into the evaporator 4 through the second air outlet 5140 on the back side of the second air guide ring 514.

[0104] In some embodiments, the second fan 54 may include a second motor 541 and a second impeller 542. The second motor 541 may be fixed above the second enclosure rib 5113. The output end of the second motor 541 may be arranged toward the second air inlet 5102. The second impeller 542 is disposed at the output end of the second motor 541. The second impeller 542 may extend into and be disposed inside the second enclosure rib 5113. In this way, the second motor 541 may drive the second impeller 542 to rotate inside the second enclosure rib 5113. The second impeller 542 may generate suction inside the second enclosure rib 5113. This suction may draw air from the storage chamber 10 through the second air inlet 5102, allowing the air to be smoothly blown into the second air guide ring 514 through the inside of the second enclosure rib 5113, thereby improving the air intake efficiency at the second air inlet 5102.

[0105] like Figure 12 As shown, in some embodiments, a second fixing portion 5114 may be provided on the outer periphery of the second enclosure rib 5113. The second fixing portion 5114 may be provided inside the second air guide ring 514. The second motor 541 may be fixed to the second fixing portion 5114. In this manner, the second motor 541 may be fixed to the second fixing portion 5114 using screws, thereby securing the second motor 541 above the second enclosure rib 5113.

[0106] In some embodiments, multiple second fixing portions 5114 may be provided. The multiple second fixing portions 5114 may be divided into two groups, each of which may be located on opposite sides of the second retaining rib 5113. This allows one side of the second motor 541 to be fixed to one set of second fixing portions 5114, while the other side of the second motor 541 may be fixed to the other set of second fixing portions 5114. This allows the second motor 541 to be fixed to two sets of second fixing portions 5114 on opposite sides, improving the stability of its installation.

[0107] Figure 13 yes Figure 12 Schematic diagram of the structure from another perspective. Figure 14 yes Figure 7 Schematic diagram of the structure from another perspective.

[0108] like Figure 13 and Figure 14As shown, in some embodiments, the first air port 5130 and the second air port 5140 can be arranged side by side in front of the evaporator 4. In conjunction with the inclined arrangement of the inclined wall 511, the first air inlet 5101 can be tilted toward the first air port 5130 and the evaporator 4, and the second air inlet 5102 can be tilted toward the second air port 5140 and the evaporator 4, which is beneficial to improving the air intake efficiency at the first air port 5130 and the second air port 5140, and thus the cooling efficiency.

[0109] like Figure 14 As shown, in some embodiments, the evaporator 4 can be arranged in an elongated strip shape and extend along the arrangement direction of the first air outlet 5130 and the second air outlet 5140. In this way, the first air outlet 5130 can be arranged opposite to a portion of the evaporator 4. The second air outlet 5140 can be arranged opposite to another portion of the evaporator 4.

[0110] In some embodiments, the evaporator 4 may include an evaporation tube 41. The refrigerant may flow inside the evaporation tube 41, absorbing heat from the surrounding air, thereby achieving cooling.

[0111] like Figure 9 and Figure 14 As shown, in some embodiments, the evaporator tube 41 may include multiple straight tube segments 411. The straight tube segments 411 may extend along the arrangement direction of the first air outlet 5130 and the second air outlet 5140. The multiple straight tube segments 411 may be arranged in parallel and spaced apart. The multiple straight tube segments 411 may be connected in sequence. In this way, the refrigerant can flow within the evaporator tube 41 and sequentially flow through the multiple straight tube segments 411, absorbing heat from the surrounding air, thereby achieving cooling.

[0112] In some embodiments, the evaporator tube 41 may include multiple curved tube sections 412. Each curved tube section 412 may be disposed between adjacent straight tube sections 411. One end of the curved tube section 412 is bent and connected to one end of a straight tube section 411, and the other end of the curved tube section 412 is bent and connected to the corresponding end of another adjacent straight tube section 411. In this manner, two adjacent straight tube sections 411 can be connected via a curved tube section 412. Multiple straight tube sections 411 can be connected sequentially via multiple curved tube sections 412. In this manner, refrigerant can flow sequentially through the multiple straight tube sections 411.

[0113] In some embodiments, the evaporator 4 may include heat dissipation fins 42. The heat dissipation fins 42 may be provided on the outer wall of the evaporation tube 41. The heat dissipation fins 42 may be provided on the outer wall of the straight tube section 411. The heat dissipation fins 42 may be arranged perpendicular to the straight tube section 411. The cooling energy generated by the refrigerant may be transferred to the heat dissipation fins 42 through the straight tube section 411 of the evaporation tube 41. The heat dissipation fins 42 may exchange heat with the surrounding air, absorb heat from the surrounding air, and thus achieve cooling. In this way, the heat dissipation fins 42 may increase the heat exchange contact area between the evaporator 4 and the surrounding air, thereby improving the heat exchange efficiency and cooling efficiency of the evaporator 4.

[0114] In some embodiments, the evaporator 4 may include a plurality of heat dissipation fins 42. The plurality of heat dissipation fins 42 may be sequentially and spaced apart on the outer wall of the straight tube section 411 of the evaporation tube 41. The plurality of heat dissipation fins 42 may further increase the heat exchange contact area between the evaporator 4 and the surrounding air.

[0115] It should be noted that the number of the heat dissipation fins 42 and the spacing between the heat dissipation fins 42 can be adjusted as needed and are not limited here.

[0116] like Figure 13 and Figure 14 As shown, in some embodiments, the angle between the inclination direction of the first air guide plate 5131 and the extension direction of the evaporator 4 is β1. That is, the angle between the inclination direction of the first air guide plate 5131 and the extension direction of the straight tube section 411 of the evaporator 4 is β1. β1 can satisfy the following: β1 < 60°. Thus, by having β1 < 60°, the first air guide plate 5131 has a sufficient inclination angle. Combined with the semi-enclosed structure of the first air guide ring 513, the air within the first air guide ring 513, when blown out through the first air outlet 5130, can be blown along the first air guide plate 5131 toward the side away from the second air outlet 5140. This reduces interference, crossover, and offset between the air blown out of the first and second air outlets 5130, allowing the air blown out of the first and second air outlets 5140 to be evenly blown to different areas of the evaporator 4, thereby improving cooling efficiency.

[0117] In some embodiments, the angle β1 between the tilt direction of the first air guide plate 5131 and the extension direction of the evaporator 4 can satisfy the following: β1 > 40°. Thus, by ensuring that β1 > 40°, a sufficient angle can be established between the tilt direction of the first air guide plate 5131 and the heat dissipation fins 42 of the evaporator 4. This allows the air in the first air guide ring 513 to be blown out through the first air outlet 5130 and smoothly blown along the first air guide plate 5131 toward the space between adjacent heat dissipation fins 42. This allows the air blown out from the first air outlet 5130 to smoothly enter the interior of the evaporator 4, exchange heat with the evaporator 4, and ensure efficient heat exchange with the evaporator 4.

[0118] In some embodiments, the angle β1 between the inclination direction of the first air guide plate 5131 and the extension direction of the evaporator 4 can satisfy the following: 40°<β1<60°. Thus, by setting 40°<β1<60°, the first air guide plate 5131 can have a sufficient inclination angle so that the wind in the first air guide ring 513 can be deflected to the side away from the second air outlet 5140 when it is blown out through the first air outlet 5130, thereby reducing interference between the wind blown out of the first air outlet 5130 and the second air outlet 5140; and the angle between the inclination direction of the first air guide plate 5131 and the heat dissipation fins 42 of the evaporator 4 can be sufficient so that the wind blown out of the first air outlet 5130 can smoothly enter the interior of the evaporator 4, ensuring heat exchange efficiency with the evaporator 4 and thereby improving cooling efficiency.

[0119] In some embodiments, the angle β1 between the inclination direction of the first air guide plate 5131 and the extension direction of the evaporator 4 can satisfy the following: β1 = 45°. Thus, by setting β1 = 45°, the first air guide plate 5131 can have a relatively reasonable inclination angle, thereby reducing interference between the air blown out of the first air outlet 5130 and the second air outlet 5140, and allowing the air blown out of the first air outlet 5130 to smoothly enter the interior of the evaporator 4.

[0120] It should be noted that, in some other embodiments, the angle β1 between the inclined direction of the first air guide plate 5131 and the extending direction of the evaporator 4 may also satisfy: β1 = 50°. Alternatively, β1 may also be other reasonable angle values.

[0121] like Figure 13 and Figure 14 As shown, in some embodiments, the angle β2 between the inclination direction of the second air guide plate 5141 and the extension direction of the evaporator 4 can satisfy the following: β2 < 60°. Thus, by having β2 < 60°, the second air guide plate 5141 can have a sufficient inclination angle. In conjunction with the semi-enclosed structure of the second air guide ring 514, when the wind in the second air guide ring 514 is blown out through the second air outlet 5140, it can be blown along the second air guide plate 5141 toward the side close to the first air outlet 5130. This allows the wind blown out of the first air outlet 5130 and the second air outlet 5140 to be tilted toward the same side, reducing interference between the winds blown out of the first air outlet 5130 and the second air outlet 5140. This allows the first air outlet 5130 and the second air outlet 5140 to be evenly blown toward the evaporator 4, thereby reducing noise at the first air outlet 5130 and the second air outlet 5140. When the rotation speeds of the first fan 53 and the second fan 54 are the same, the air volume flowing through the evaporator 4 from the second air outlet 5140 can be increased, thereby improving the cooling efficiency.

[0122] In some embodiments, the angle β2 between the inclination direction of the second air guide plate 5141 and the extension direction of the evaporator 4 can satisfy the following: β2 > 40°. Thus, by ensuring that β2 > 40°, a sufficient angle can be established between the inclination direction of the second air guide plate 5141 and the heat dissipation fins 42 of the evaporator 4. This allows the air in the second air guide ring 514 to be blown out through the second air outlet 5140 and smoothly blown along the second air guide plate 5141 toward the spaces between adjacent heat dissipation fins 42. This allows the air blown out from the second air outlet 5140 to smoothly enter the interior of the evaporator 4, exchange heat with the evaporator 4, and ensure efficient heat exchange with the evaporator 4.

[0123] In some embodiments, the angle β2 between the inclination direction of the second air guide plate 5141 and the extension direction of the evaporator 4 can satisfy the following: 40°<β2<60°. Thus, by setting 40°<β2<60°, the second air guide plate 5141 can have a sufficient inclination angle so that when the wind in the second air guide ring 514 is blown out through the second air outlet 5140, it can be offset to the side away from the first air outlet 5130, so that the first air outlet 5130 and the second air outlet 5140 can be blown toward the evaporator 4 evenly. Furthermore, the inclination direction of the second air guide plate 5141 can have a sufficient angle with the heat dissipation fins 42 of the evaporator 4 so that the wind blown out of the second air outlet 5140 can smoothly enter the interior of the evaporator 4, ensuring the heat exchange efficiency with the evaporator 4 and thereby improving the cooling efficiency.

[0124] In some embodiments, the angle β2 between the inclination direction of the second air guide plate 5141 and the extension direction of the evaporator 4 can satisfy the following: β2 = 45°. Thus, by setting β2 = 45°, the second air guide plate 5141 can have a relatively reasonable inclination angle, allowing the first air outlet 5130 and the second air outlet 5140 to blow evenly toward the evaporator 4, and allowing the air blown out of the second air outlet 5140 to smoothly enter the interior of the evaporator 4.

[0125] It should be noted that, in some other embodiments, the angle β2 between the inclined direction of the second air guide plate 5141 and the extending direction of the evaporator 4 may also satisfy: β2 = 50°. Alternatively, β2 may also be other reasonable angle values.

[0126] like Figure 13 and Figure 14 As shown, in some embodiments, the first air guide ring 513 can be vertically disposed on the top surface of the inclined wall 511. The first air guide plate 5131 can be vertically disposed on the top surface of the inclined wall 511. In this way, when air in the storage chamber 10 enters the inner chamber of the first air guide ring 513 through the first air inlet 5101, the first air guide ring 513 can smoothly pass through the first air outlet 5130 and be directed to the evaporator 4, and the air at the first air outlet 5130 can be smoothly deflected toward the side away from the second air outlet 5140.

[0127] In some embodiments, the second air guide ring 514 can be vertically disposed on the top surface of the inclined wall 511. The second air guide plate 5141 can be vertically disposed on the top surface of the inclined wall 511. In this way, when air in the storage chamber 10 enters the inner chamber of the second air guide ring 514 through the second air inlet 5102, the air can be smoothly directed from the second air guide ring 514 to the evaporator 4 through the second air outlet 5140, and the air at the second air outlet 5140 can be smoothly deflected toward a side away from the first air outlet 5130.

[0128] like Figure 8 、 Figure 13 and Figure 14 As shown, in some embodiments, a connecting rib 516 may be formed at the connection between the first air guide plate 5131 and the second air guide ring 514. Thus, the connecting rib 516 allows the first air guide ring 513 and the second air guide ring 514 to be arranged side by side, and the first air outlet 5130 and the second air outlet 5140 to be arranged side by side on the front side of the evaporator 4.

[0129] like Figure 8 and Figure 13 As shown, in some embodiments, a separation rib 517 may be provided between the connecting rib 516 and the evaporator 4. The connecting rib 516 is arranged to be inclined upward from the inclined wall 511 and toward the direction close to the evaporator 4. The separation rib 517 can fill the gap between the connecting rib 516 and the evaporator 4. One side of the separation rib 517 can be connected to the connecting rib 516, and the other side of the separation rib 517 can be connected to the evaporator 4. In this way, the first air guide ring 513 and the second air guide ring 514 can be isolated from each other by the separation rib 517, and the first air outlet 5130 and the second air outlet 5140 can be isolated from each other, thereby reducing the mutual interference, intersection, and offset between the wind blown out of the first air outlet 5130 and the second air outlet 5140, so that the wind blown out of the first air outlet 5130 and the second air outlet 5140 can be evenly blown to different areas of the evaporator 4, which is conducive to improving the cooling efficiency.

[0130] In some embodiments, the connecting rib 516 can be vertically disposed on the top surface of the inclined wall 511. The separating rib 517 can be vertically disposed on the top surface of the inclined wall 511. In the upward direction from the inclined wall 511, the gap between the connecting rib 516 and the evaporator 4 can gradually decrease, thereby gradually decreasing the width of the separating rib 517.

[0131] While the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. A refrigeration device, characterized in that: include: a box body, wherein a storage chamber is formed in the box body; The cooling air duct is provided in the box body and includes: The top air duct is provided in the top area of ​​the storage chamber; the top air duct includes: a first air inlet, provided on the bottom wall of the top air duct, the first air inlet communicating with the top air duct and the storage chamber; a second air inlet, provided on the bottom wall of the top air duct, the second air inlet communicating with the top air duct and the storage chamber; the second air inlet being spaced apart from the first air inlet; a first air guide ring, disposed in the top air duct and arranged around the first air inlet, with a first air outlet formed on the back side of the first air guide ring; a second air guide ring, disposed in the top air duct and arranged around the second air inlet, with a second air outlet formed on the back side of the second air guide ring; a back air duct, provided in the back area of ​​the storage chamber, the top of the back air duct being in communication with the top air duct; the back air duct being used to supply air into the storage chamber; an evaporator, disposed in the top air duct and on the back side of the first air guide ring and the second air guide ring, the evaporator being arranged at the first air outlet and the second air outlet; a first fan disposed in the first air guide ring and at the first air inlet; the first fan is configured to draw air from the storage chamber through the first air inlet and deliver the air to a portion of the evaporator; a second fan disposed in the second air guide ring and at the second air inlet; the second fan is configured to extract air from the storage chamber through the second air inlet and deliver the air to another portion of the evaporator; A first air guide plate is formed on the side of the first air guide ring away from the second air guide ring, and the first air guide plate is tilted toward the direction away from the second air guide ring and close to the evaporator; a second air guide plate is formed on the side of the second air guide ring close to the first air guide ring, and the second air guide plate is tilted toward the direction close to the first air guide ring and close to the evaporator.

2. The refrigeration equipment according to claim 1, characterized in that The bottom wall of the top air duct comprises: an inclined wall, the inclined wall being located at the front end of the bottom wall of the top air duct; a supporting wall, the supporting wall being located on the back side of the inclined wall; The first air inlet and the second air inlet are arranged on the inclined wall at intervals, and the evaporator is arranged above the supporting wall; The inclined wall is arranged to be inclined upward toward a side away from the evaporator.

3. The refrigeration equipment according to claim 2, characterized in that An included angle α between the inclined wall and the top wall of the storage chamber satisfies: 15°<α<25°.

4. The refrigeration equipment according to claim 2, characterized in that The first air outlet and the second air outlet are arranged side by side on the front side of the evaporator; The evaporator is extended along the arrangement direction of the first air outlet and the second air outlet.

5. The refrigeration equipment according to claim 4, characterized in that An included angle β1 between the inclined direction of the first air guide plate and the extending direction of the evaporator satisfies the following: 40°<β1<60°.

6. The refrigeration equipment according to claim 4, characterized in that An included angle β2 between the inclined direction of the second air guide plate and the extending direction of the evaporator satisfies the following: 40°<β2<60°.

7. The refrigeration equipment according to claim 2, characterized in that A connecting rib is formed at the connection between the first air guide plate and the second air guide ring, and a separating rib is provided between the connecting rib and the evaporator; The connecting ribs are arranged obliquely upward from the inclined wall and toward the direction close to the evaporator; One side of the partition rib is connected to the connecting rib, and the other side of the partition rib is connected to the evaporator.

8. The refrigeration equipment according to claim 2, wherein: A drainage portion is provided at the rear end of the support wall and is directed downwards. A drainage hole is provided in the drainage portion. The drainage portion is located above the top of the back air duct.

9. The refrigeration equipment according to claim 2, characterized in that The top air duct comprises: A first enclosure rib is formed on the top surface of the inclined wall and is provided at the peripheral edge of the first air inlet; the first enclosure rib is located inside the first air guide ring; A second enclosure rib is formed on the top surface of the inclined wall and is arranged at the peripheral edge of the second air inlet; the second enclosure rib is located inside the second air guide ring; The first fan is arranged at the first enclosure rib, and the second fan is arranged at the second enclosure rib.

10. The refrigeration equipment according to claim 9, characterized in that The first fan comprises: A first motor is fixed above the first enclosure rib; A first impeller is provided at the output end of the first motor and extends into the inner side of the first enclosure rib; The second fan comprises: A second motor is fixed above the second enclosure rib; The second impeller is provided at the output end of the second motor and extends into and is arranged on the inner side of the first enclosure rib.

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