Refrigeration equipment

Abstract

The utility model provides refrigeration equipment (1) which comprises a box body (2), a storage chamber (3) formed in the box body (2), an ice-making chamber (4) arranged in the storage chamber (3), an ice-making evaporation chamber (5) arranged in the ice-making chamber (4) and an ice-making evaporator (6) arranged in the ice-making evaporation chamber (5), and an air return port (8) is formed in the wall of the ice-making evaporation chamber (5). An air guide plate (7) matched with the air return port (8) is arranged in the ice-making evaporation chamber (5) and is used for guiding air entering from the air return port (8) to flow to the ice-making evaporator (6). By means of the arrangement, the ice-making chamber capable of independently supplying cold can be formed in the storage chamber, cleanliness of the ice-making chamber is guaranteed, air entering from the air return opening can flow through the ice-making evaporator as much as possible, and the cooling effect is improved.

Description

Technical Field

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

[0002] With the continuous improvement of living standards, refrigerators have become a must-have household electrical appliance and have entered thousands of households, and the functions of refrigerators are becoming more and more complete. In order to meet the daily ice needs of users, it is necessary to set up ice makers and ice storage boxes in the refrigerator. At present, the space where the ice maker and ice storage box of the refrigerator are located is generally interconnected with the storage room of the refrigerator. In addition, in order to provide cold air, the refrigerator needs to be equipped with a refrigeration system, which generally includes an evaporator, a compressor, and a refrigerant pipe connecting the evaporator and the compressor. The evaporator is generally arranged outside the storage room and connected to the storage room through an air duct. However, this design has the following defects: the ice cubes made by the ice maker are easily contaminated by the odor and bacteria in the storage room, resulting in unclean prepared ice cubes. Utility Model Content

[0003] The utility model aims to provide a refrigeration device, which can realize an independent cooling ice-making chamber in the storage room by arranging an ice-making chamber with an ice-making evaporation chamber in the storage room, and arranging an air guide plate cooperating with an air return port of the ice-making evaporation chamber in the ice-making evaporation chamber, so as to ensure the cleanliness of the ice-making chamber, and enable the air entering from the air return port to flow through the ice-making evaporator as much as possible, thereby improving the cooling effect.

[0004] To achieve the above-mentioned purpose of the utility model, one embodiment of the utility model provides a refrigeration device, including a box body and a storage chamber formed in the box body, wherein the refrigeration device also includes an ice-making chamber arranged in the storage chamber, an ice-making evaporation chamber arranged in the ice-making chamber, and an ice-making evaporator arranged in the ice-making evaporation chamber, a return air outlet is formed on the wall of the ice-making evaporation chamber, and an air guide plate cooperating with the return air outlet is arranged in the ice-making evaporation chamber, and the air guide plate is used to guide the air entering from the return air outlet to flow to the ice-making evaporator.

[0005] As one embodiment of the utility model, the wind guide plate includes a transverse wind guide plate arranged above the return air outlet, the transverse wind guide plate is connected to the ice-making chamber wall and extends from the ice-making chamber wall to the ice-making evaporator, and the transverse wind guide plate is used to guide the air entering from the return air outlet to flow transversely to the ice-making evaporator.

[0006] As one of the embodiments of the utility model, the wind guide plate also includes a longitudinal wind guide plate, which is arranged on the ice-making evaporator side of the transverse wind guide plate, and the top of the longitudinal wind guide plate is not lower than the height of the end of the transverse wind guide plate on the ice-making evaporator side, and the longitudinal wind guide plate and the evaporator chamber wall are spaced apart, and the longitudinal wind guide plate is used to guide the air entering from the return air port to flow downward, and make the air flow to the ice-making evaporator through the bottom of the longitudinal wind guide plate.

[0007] As one embodiment of the utility model, the return air outlet includes a first return air outlet and a second return air outlet located above the first return air outlet, the air guide plate cooperates with the first return air outlet, the second return air outlet opens downward, and the upper side of the second return air outlet has an air guide surface, the inclination angle of the air guide surface relative to the horizontal plane is between 50 degrees and 60 degrees, and the air guide surface is used to guide the air entering from the second return air outlet to flow upward toward the ice-making evaporator.

[0008] As one embodiment of the present invention, the longitudinal air guide plate and the transverse air guide plate are spaced apart, and part of the air entering from the return air port flows upward toward the ice-making evaporator through the upper end spacing of the longitudinal air guide plate and the transverse air guide plate.

[0009] As one embodiment of the present utility model, the ice-making evaporator includes evaporation fins, and the longitudinal air guide plate is embedded in the evaporation fins.

[0010] As one implementation mode of the present invention, the longitudinal inclination angle of the longitudinal air guide plate is not greater than 10 degrees.

[0011] As one embodiment of the present invention, the lower surface of the transverse wind guide plate extends horizontally, and the upper surface of the transverse wind guide plate is inclined inwardly and downwardly.

[0012] As one implementation manner of the present utility model, the first return air inlet and the second return air inlet are both close to the bottom of the ice-making evaporator, and the first return air inlet opens downward.

[0013] As one embodiment of the present utility model, the refrigeration equipment also includes an ice maker arranged in the ice-making chamber, the ice-making evaporation chamber is arranged on the rear side of the ice maker, the ice-making evaporation chamber is longitudinally arranged in the ice-making evaporation chamber, a removable air duct cover is arranged in the ice-making chamber, the air duct cover forms the front wall of the ice-making evaporation chamber, the air duct cover forms the return air outlet, a partition is arranged in the storage chamber, the partition and the side wall of the storage chamber enclose the ice-making chamber, the ice-making chamber is arranged at the top of the storage chamber, and the storage chamber is a freezer.

[0014] As one embodiment of the utility model, the air duct cover is formed with an air outlet, the refrigeration equipment also includes a fan arranged in the ice-making evaporation chamber, the fan is installed on the air duct cover and opposite to the air outlet, the refrigeration equipment also includes an air guide member arranged in the ice-making chamber, the air guide member is arranged on the air duct cover and cooperates with the air outlet, and the air guide member is used to guide the cold air flowing out of the air outlet to the ice-making machine.

[0015] Compared with the prior art, the utility model provides an ice-making chamber with an ice-making evaporation chamber in the storage chamber, and provides an air guide plate matched with the return air outlet of the ice-making evaporation chamber in the ice-making evaporation chamber. The beneficial effects of the utility model are: it is possible to form an ice-making chamber with independent cooling in the storage chamber, ensure the cleanliness of the ice-making chamber, and enable the air entering from the return air outlet to flow through the ice-making evaporator as much as possible, thereby improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings, wherein:

[0017] Figure 1 This is a schematic structural diagram of a refrigeration device according to one embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of a storage room, an ice-making room and related structures in one embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of an ice-making evaporation chamber and related structures in one embodiment of the utility model;

[0020] Figure 4 yes Figure 3 The structure shown is a schematic diagram of the structure after removing the rear wall and side wall of the ice making evaporation chamber;

[0021] Figure 5 yes Figure 3 a cross-sectional view of the structure shown;

[0022] Figure 6 yes Figure 3 The structural schematic diagram of the air duct cover shown;

[0023] Figure 7 yes Figure 5 The structural schematic diagram of the ice-making evaporator and the longitudinal air guide plate shown;

[0024] Figure 8 yes Figure 3 A schematic diagram of the structure of the other side of the air duct cover is shown.

[0025] Among them, 1. refrigeration equipment; 2. box body; 3. storage room; 4. ice-making room; 5. ice-making evaporation room; 6. ice-making evaporator; 7. air guide plate; 8. return air outlet; 9. ice-making machine; 10. air duct cover; 11. partition; 12. fan; 13. air outlet; 14. air guide piece; 61. evaporation fin; 71. horizontal air guide plate; 72. longitudinal air guide plate; 81. first return air outlet; 82. second return air outlet; 821. air guide surface. DETAILED DESCRIPTION

[0026] The following will describe the present invention in detail in conjunction with the specific implementations shown in the accompanying drawings. However, these implementations do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these implementations are all within the scope of protection of the present invention.

[0027] Reference Figure 1 The refrigeration device 1 of the present invention refers to a mechanical system or device for reducing and controlling the temperature of an object or space. Based on the characteristic that the refrigeration device 1 can reduce the temperature of a space or an object, the refrigeration device 1 is widely used in homes, businesses and other places.

[0028] In one embodiment of the present invention, the refrigeration device 1 may be a refrigerator. A refrigerator is one of the most common refrigeration devices 1 in a household, and is used to store food, prevent food from spoiling, and extend its shelf life.

[0029] Reference Figure 1 In this embodiment, the refrigeration device 1 includes a housing 2. The refrigeration device 1 also includes components such as a compressor, a condenser, an expansion valve, and an evaporator, which work together through a refrigeration cycle process.

[0030] The refrigeration cycle generally includes a compression process, a condensation process, an expansion process, and an evaporation process. The compression process is that the compressor compresses the refrigerant gas, making it hot and increasing the pressure. The condensation process is that the high-pressure hot gas releases heat in the condenser, and the refrigerant cools and condenses into a liquid. The expansion process is that the liquid refrigerant passes through the expansion valve (throttle valve), its pressure is reduced, and enters the evaporator. The evaporation process is that in the evaporator, the low-pressure refrigerant absorbs heat from the surrounding environment and evaporates into a gas. This process causes the temperature of the surrounding environment to drop. The cycle of compression process, condensation process, expansion process, and evaporation process is repeated continuously, thereby achieving a continuous cooling effect of the refrigeration equipment 1.

[0031] The refrigeration device 1 also includes a machine room. The machine room is usually arranged at the bottom of the box body 2. The compressor, condenser, and expansion valve are usually arranged in the machine room.

[0032] The evaporator of the refrigeration equipment 1 can be a plate evaporator, a tubular evaporator, a fin evaporator (fin evaporator), etc. The plate evaporator is usually composed of a plurality of flat metal plates, and the refrigerant flows between the plates. The tubular evaporator is composed of a series of connected pipes, and the refrigerant flows in the pipes. The fin evaporator includes a refrigerant pipe and a metal sheet installed on the periphery of the refrigerant pipe. These metal sheets are used to increase the heat exchange area and improve the heat transfer efficiency. The evaporator of the refrigeration equipment 1 can be installed at different positions of the refrigeration equipment 1, such as on the back or side wall of the refrigeration equipment 1.

[0033] Generally, after the box body 2 is foamed, the compressor, condenser, evaporator and circuit are installed to ensure the performance and safety of the refrigeration device 1.

[0034] Reference Figure 1 and Figure 2 The refrigeration device 1 may include a storage chamber 3 disposed in the housing 2. The storage chamber 3 may be used to store food.

[0035] For ease of explanation, the directions in this application are defined as follows: lateral refers to the horizontal direction, for example, from the left side to the right side of the refrigeration device 1, and from the front side to the rear side of the refrigeration device 1; the storage chamber 3 is opened to the front, and the front of the refrigeration device 1 is the side where the door for opening and closing the storage chamber 3 is closed; forward refers to the direction from the back to the front of the refrigeration device 1; backward refers to the direction from the front to the back of the refrigeration device 1; longitudinal refers to the direction perpendicular to the horizontal direction, for example, from the bottom to the top or from the top to the bottom of the refrigeration device 1; upward refers to the direction from the bottom to the top of the refrigeration device along the longitudinal direction; downward refers to the direction from the top to the bottom of the refrigeration device 1 along the longitudinal direction; the top or top end refers to the uppermost part along the longitudinal direction; the bottom or bottom end refers to the lowermost part along the longitudinal direction; the front or front end refers to the frontmost part along the horizontal direction; the rear or rear end refers to the rearmost part along the horizontal direction.

[0036] The storage room 3 may be a refrigerator, which is used to store most foods that need to be refrigerated, such as dairy products, cooked food, fruits and vegetables, etc., and its temperature range is usually set between 2°C and 5°C.

[0037] The storage chamber 3 may be a freezer chamber. The freezer chamber is used to store foods that need to be frozen, such as meat, seafood, frozen foods, etc., to keep them fresh for a long time, and its temperature range is usually set below -18°C.

[0038] The storage chamber 3 may also be a variable temperature chamber. The variable temperature chamber is a multifunctional storage space designed to provide adjustable temperature settings to meet the storage requirements of different foods. The variable temperature chamber can adjust the temperature according to the needs of the user and can be used as a refrigerator, a low-temperature fresh-keeping chamber or a freezer. When additional refrigeration space is needed or more freezing space is temporarily needed, the variable temperature chamber of the refrigeration device 1 provides extremely high flexibility, allowing users to adjust the appropriate temperature according to different food types and storage requirements, thereby maintaining the best freshness and quality of the food.

[0039] The storage room 3 may also be other types of compartments except for a refrigerating room, a freezing room, and a temperature-changing room.

[0040] Since different types of food require different storage conditions to keep them fresh, the refrigeration device 1 of the present patent may also include a variety of different storage chambers 3 to meet the preservation needs of various foods. For example, the refrigeration device 1 may include two or more of a refrigerator, a freezer, and a temperature-changing chamber.

[0041] In other embodiments, the refrigeration device 1 of the present patent may also have only one storage chamber 3, for example, only one refrigerator chamber, or a freezer chamber, or a temperature-changing chamber, etc.

[0042] Reference Figure 2 In one embodiment of the utility model, the refrigeration device 1 further includes an ice-making chamber 4 disposed in the storage chamber 3. The refrigeration device 1 may include a partition 11 disposed in the storage chamber 3. The partition 11 may be disposed in the storage chamber 3 horizontally or longitudinally. The partition 11 may be arranged with the wall of the storage chamber 3 to form the ice-making chamber 4. Preferably, the storage chamber 3 provided with the ice-making chamber 4 is a freezing chamber or a temperature-changing chamber.

[0043] Preferably, in this embodiment, the partition 11 includes a transverse partition and a longitudinal partition that are connected to each other. The transverse partition is connected to the side wall and the rear wall of the storage chamber 3. The longitudinal partition is connected to the top wall and the rear wall of the storage chamber 3. The rear wall of the storage chamber 3 forms the rear wall of the ice-making chamber 4, the top wall of the storage chamber 3 forms the top wall of the ice-making chamber 4, the transverse partition forms the bottom wall of the ice-making chamber 4, the longitudinal partition forms the side wall of the ice-making chamber 4, and the longitudinal partition, the longitudinal partition, the top wall of the ice-making chamber 4, the side wall of the ice-making chamber 4, and the rear wall of the ice-making chamber 4 together enclose a relatively independent space, which is the ice-making chamber 4. The ice-making chamber 4 is located at the top of the storage chamber 3.

[0044] In other embodiments, the ice-making chamber 4 may also be formed by enclosing the partition 11 and the wall of the storage chamber 3 in other ways, and the ice-making chamber 4 may also be located in the middle, bottom, etc. of the storage chamber 3 .

[0045] Reference Figure 2In this embodiment, the refrigeration device 1 further includes an ice maker 9 disposed in the ice making chamber 4. The refrigeration device 1 may further include an ice storage box disposed in the ice making chamber 4. The ice storage box may be disposed below the ice maker 9.

[0046] Reference Figure 3 , Figure 4 , and 5, in the present embodiment, the refrigeration device 1 further includes an ice-making evaporation chamber 5 disposed in the ice-making chamber 4. The refrigeration device 1 further includes an ice-making evaporator 6 disposed in the ice-making evaporation chamber 5. Preferably, the ice-making evaporation chamber 5 is disposed at the rear of the ice-making chamber 4. The ice-making evaporator 6 is disposed at the lower part of the ice-making evaporation chamber 5. The ice-making evaporator 6 is a fin evaporator including an evaporation fin 61. A heating element may also be disposed in the ice-making evaporation chamber 5, and the heating element may include a heating wire embedded in the evaporation fin 61 of the ice-making evaporator 6. The refrigeration device 1 further includes a storage evaporator for supplying cold to the storage chamber 3. The storage evaporator may be disposed at a position such as the rear side or the bottom of the storage chamber 3.

[0047] By providing an independent ice-making chamber 4 in the storage chamber 3 of the refrigeration device 1 and configuring an evaporation chamber and an evaporator in the ice-making chamber 4, this design has many significant benefits, mainly in terms of improving efficiency, improving ice-making quality and saving energy.

[0048] The independent ice-making chamber 4 has a dedicated evaporator inside, which means that the evaporator can be used exclusively to adjust the temperature of the ice-making chamber 4 without being affected by temperature changes in other parts of the refrigeration device 1. Allowing more precise control of the internal environment of the ice-making chamber 4 helps maintain a more stable low temperature in the ice-making chamber 4, thereby improving the efficiency and quality of ice making. When the ice-making chamber 4 is separated from the other storage chambers 3, the loss of cold air in the ice-making chamber 4 will be reduced each time the door of the refrigeration device 1 is opened, which helps save energy. In addition, the independent ice-making chamber 4 helps prevent food odors from entering the ice-making area. This is because odors tend to spread through the air inside the refrigeration device 1. By isolating the ice-making chamber 4, the chance of ice cubes coming into contact with food odors can be reduced, ensuring that the ice cubes produced are clean and odorless.

[0049] Reference Figure 3 and Figure 5 In this embodiment, a return air port 8 is formed on the wall of the ice-making evaporation chamber 5, and an air guide plate 7 cooperating with the return air port 8 is provided in the ice-making evaporation chamber 5. The air guide plate 7 is used to guide the air entering from the return air port 8 to flow to the ice-making evaporator 6. Preferably, the return air port 8 is formed on the front wall of the ice-making evaporation chamber 5. The air guide plate 7 is located in front of the ice-making evaporator 6. The air entering through the return air port 8 flows backward through the ice-making evaporator 6 under the guidance of the air guide plate 7.

[0050] Reference Figure 5 and Figure 6In one embodiment of the utility model, the air guide plate 7 includes a transverse air guide plate 71 disposed above the return air port 8, the transverse air guide plate 71 is connected to the wall of the ice making chamber 4 and extends from the wall of the ice making chamber 4 to the ice making evaporator 6, and the transverse air guide plate 71 is used to guide the air entering from the return air port 8 to flow transversely to the ice making evaporator 6. The transverse air guide plate 71 can extend along the width direction of the ice making evaporation chamber 5.

[0051] By forming a return air port 8 on the wall of the ice-making evaporation chamber 5 and arranging an air guide plate 7 cooperating with the return air port 8 in the ice-making evaporation chamber 5, the air entering from the return air port 8 can be effectively guided to flow toward the ice-making evaporator 6, so that the air entering from the return air port 8 can flow through the ice-making evaporator 6 more and more evenly, so that the ice-making evaporator 6 can fully exchange heat with the air entering from the return air port 8, thereby improving the refrigeration efficiency.

[0052] Reference Figure 5 and Figure 7 In one embodiment of the utility model, the air guide plate 7 further comprises a longitudinal air guide plate 72, which is arranged on the ice-making evaporator 6 side of the transverse air guide plate 71. The top of the longitudinal air guide plate 72 is not lower than the height of the end of the transverse air guide plate 71 on the ice-making evaporator (6) side. The longitudinal air guide plate 72 and the wall of the ice-making evaporator chamber 5 are arranged at intervals. The longitudinal air guide plate 72 is used to guide the air entering from the return air port 8 to flow downward, and to make the air flow to the ice-making evaporator 6 through the bottom of the longitudinal air guide plate 72. The transverse air guide plate 71 can extend along the width direction of the ice-making evaporation chamber 5.

[0053] By providing the longitudinal air guide plate 72, the air entering from the return air port 8 can be guided to flow downward first, and then flow upward after passing through the longitudinal air guide plate 72, so that the air entering from the return air port 8 can flow through the ice-making evaporator 6 more and more evenly, so that the ice-making evaporator 6 can fully exchange heat with the air entering from the return air port 8, thereby improving the refrigeration efficiency.

[0054] Reference Figure 5 In one embodiment of the utility model, the return air port 8 includes a first return air port 81 and a second return air port 82 located above the first return air port 81. The second return air port 82 can be arranged above the first return air port 81. By providing a plurality of return air ports 8, it is possible to facilitate air in the area where the ice maker 9 and the ice storage box are located to enter the ice making evaporation chamber 5 through the return air port 8, thereby improving the refrigeration efficiency. In other embodiments of the utility model, the wall of the ice making evaporation chamber 5 may also have only one return air port 8.

[0055] Reference Figure 5In one embodiment of the utility model, the first return air port 81 may be opened downward. The air guide plate 7 may cooperate with the first return air port 81. The second return air port 82 is opened downward. The upper side of the second return air port 82 has an air guide surface 821. The inclination angle of the air guide surface 821 relative to the horizontal plane is between 0 degrees and 60 degrees, and the air guide surface 821 is used to guide the air entering from the second return air port 82 to flow upward to the ice-making evaporator 6.

[0056] Through the cooperation between the air guide surface 821 and the second return air port 82, most of the air entering from the second return air port 82 can flow upward to the upper and front parts of the ice-making evaporator 6. Through the cooperation between the air guide plate 7 and the first return air port 81, the air entering from the first return air port 81 can flow backward to the rear and lower parts of the ice-making evaporator 6, so that air flows in the upper, lower, front and rear parts, making the air flow on the ice-making evaporator 6 more uniform, so that the ice-making evaporator 6 can fully exchange heat with the air entering from the return air port 8, thereby improving the refrigeration efficiency.

[0057] In one embodiment of the present invention, the longitudinal air guide plate 72 is spaced apart from the transverse air guide plate 71 , and part of the air entering from the return air port 8 flows upward toward the ice-making evaporator 6 through the upper end spacing of the longitudinal air guide plate 72 and the transverse air guide plate 71 .

[0058] By spacing the longitudinal air guide plate 72 and the transverse air guide plate 71, part of the air entering from the first return air port 81 can flow upward from the gap between the longitudinal air guide plate 72 and the transverse air guide plate 71, thereby making the air flow on the ice-making evaporator 6 more uniform and enabling the ice-making evaporator 6 to fully exchange heat with the air entering from the return air port 8, thereby improving the refrigeration efficiency.

[0059] Reference Figure 7 In one embodiment of the utility model, the ice-making evaporator 6 includes an evaporation fin 61, and a longitudinal air guide plate 72 is embedded in the evaporation fin 61. By embedding the longitudinal air guide plate 72 in the evaporation fin 61, the structure is simple, compact, and easy to install. In other embodiments, the ice-making evaporator 6 may further include a mounting bracket, and the longitudinal air guide plate 72 may be mounted on the mounting bracket, and the longitudinal air guide plate 72 may be spaced apart from the evaporation fin 61. Preferably, the distance between the longitudinal air guide plate 72 and the front surface of the evaporation fin 61 is 5-10 mm.

[0060] Reference Figure 5 and Figure 7 In one embodiment of the utility model, the longitudinal inclination angle of the longitudinal air guide plate 72 is not greater than 10 degrees. By limiting the inclination angle of the longitudinal air guide plate 72, it can be ensured that the longitudinal air guide plate 72 better guides the air entering from the return air port 8 backward and downward to the ice making evaporator 6.

[0061] Reference Figure 5In one embodiment of the utility model, the lower surface of the transverse air guide plate 71 extends horizontally. By extending the lower surface of the transverse air guide plate 71 horizontally, it can be ensured that the transverse air guide plate 71 better guides the air entering from the return air port 8 to the ice making evaporator 6 at the rear side.

[0062] Reference Figure 5 In one embodiment of the utility model, the upper surface of the transverse air guide plate 71 is inclined inward and downward. A water receiving tray may be provided at the bottom of the ice making evaporation chamber 5. The water receiving tray is located below the ice making evaporator 6, the return air port 8, and the air guide plate 7. By arranging the upper surface of the transverse air guide plate 71 to be inclined, it is possible to facilitate the water condensed at the transverse air guide plate 71 to flow to the water receiving tray, thereby avoiding water accumulation at the transverse air guide plate 71.

[0063] Reference Figure 3 , Figure 5 and Figure 8 In one embodiment of the utility model, the first return air port 81 and the second return air port 82 are both close to the bottom of the ice-making evaporator 6, and the first return air port 81 opens downward. By arranging the return air port 8 close to the bottom, the air entering from the return air port 8 can flow through the ice-making evaporator 6 from bottom to top, thereby fully exchanging heat with the ice-making evaporator 6 and improving the cooling effect.

[0064] Reference Figures 3 to 6 , Figure 8 In one embodiment of the utility model, the ice-making evaporation chamber 5 is longitudinally arranged in the ice-making evaporation chamber 5. The ice-making evaporator 6 is arranged at the rear of the ice-making chamber 4. A removable air duct cover 10 may be provided in the ice-making chamber 4. The air duct cover 10 forms the front wall of the ice-making evaporation chamber 5. A snap-fit ​​structure may be provided between the air duct cover 10 and the wall of the ice-making chamber 4, and the air duct cover 10 may be removably installed in the ice-making chamber 4 through the snap-fit ​​structure. The air duct cover 10 may form a return air port 8. A transverse air guide plate 71 may be provided on the air duct cover 10. Preferably, the transverse air guide plate 71 and the air duct cover 10 are integrally formed. In other embodiments, the transverse air guide plate 71 may also be installed on the air duct cover 10. By providing the air duct cover 10, the disassembly and assembly of the components in the ice-making evaporation chamber 5 can be facilitated.

[0065] Reference Figure 3 , Figure 4 , Figure 5 In one embodiment of the utility model, the air duct cover plate 10 is formed with an air outlet 13 . The refrigeration device 1 further includes a fan 12 disposed in the ice making evaporation chamber 5 , and the fan 12 is mounted on the air duct cover plate 10 and is opposite to the air outlet 13 .

[0066] The fan 12 can be a fan 12 with a smaller outer size and placed in the ice making evaporation chamber 5. By installing the fan 12 in the ice making evaporation chamber 5, the ice making system and the wind path can occupy less space and be more compact, with less wind loss.

[0067] A fan 12 mounting bracket may be provided at the rear of the air duct cover 10, and the ice-making fan 12 may be pre-installed on the fan 12 mounting bracket, so as to fix the fan 12 on the air duct cover 10. After the fan 12 and the air duct cover 10 are installed in place, the fan 12 is located above the ice-making evaporator 6. Preferably, the fan 12 may have an inclination angle greater than 3° so that the condensed water on the fan 12 can be discharged. The fan 12 may be a centrifugal fan 12, the air inlet of the fan 12 may face downward, and the air outlet 13 of the fan 12 may face the front of the air duct cover 10 and be opposite to the air outlet 13 on the air duct cover 10.

[0068] Reference Figure 2 , Figure 5 , Figure 8 In this embodiment, the refrigeration device 1 may further include an air guide 14 disposed in the ice making chamber 4, the air guide 14 being disposed on the air duct cover 10 and cooperating with the air outlet 13, the air guide 14 being used to guide the cold air flowing out of the air outlet 13 to the ice making machine 9. Preferably, the air guide 14 and the air duct cover 10 are integrally arranged. In other embodiments, the air guide 14 may also be installed on the air duct cover 10. Preferably, vertical ribs are disposed on the air guide 14, which can further guide the wind so that the wind can be blown toward the ice making machine 9 more evenly.

[0069] In other embodiments of the present invention, the refrigeration device 1 may also refer to a refrigerator, a display cabinet, etc.

[0070] In summary, the refrigeration device 1 of the present invention can solve the problem that the ice cubes produced by the ice maker 9 are easily contaminated by the odor and bacteria in the storage chamber 3, resulting in the prepared ice cubes being unclean.

[0071] By adopting the technical solution of the utility model, an independent ice-making chamber 4 is provided in the storage chamber 3 of the refrigeration equipment 1, and an evaporation chamber and an evaporator are arranged in the ice-making chamber 4, so that the ice cubes made by the ice-making machine 9 in the ice-making chamber 4 can be prevented from being contaminated by the odor and bacteria in the storage chamber 3, thereby ensuring the cleanliness of the ice-making chamber 4, improving the quality of ice-making, improving the efficiency of ice-making and saving energy. By forming a return air port 8 on the wall of the ice-making evaporation chamber 5, and arranging an air guide plate 7 that cooperates with the return air port 8 in the ice-making evaporation chamber 5, the air entering from the return air port 8 can be effectively guided to flow to the ice-making evaporator 6, so that the air entering from the return air port 8 flows through the ice-making evaporator 6 more and more evenly, so that the ice-making evaporator 6 can fully exchange heat with the air entering from the return air port 8, thereby improving the refrigeration efficiency.

[0072] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0073] The series of detailed descriptions listed above are only specific descriptions of the feasible implementation methods of this patent. They are not intended to limit the scope of protection of this patent. Any equivalent implementation methods or changes that do not deviate from the technical spirit of this patent should be included in the scope of protection of this patent.

Claims

1. A refrigeration device (1), comprising a housing (2) and a storage chamber (3) formed in the housing (2), characterized in that: The refrigeration device (1) further comprises an ice-making chamber (4) arranged in the storage chamber (3), an ice-making evaporation chamber (5) arranged in the ice-making chamber (4), and an ice-making evaporator (6) arranged in the ice-making evaporation chamber (5); a return air port (8) is formed on the wall of the ice-making evaporation chamber (5); an air guide plate (7) cooperating with the return air port (8) is arranged in the ice-making evaporation chamber (5); the air guide plate (7) is used to guide the air entering from the return air port (8) to flow to the ice-making evaporator (6).

2. The refrigeration device (1) according to claim 1, characterized in that: The wind guide plate (7) comprises a transverse wind guide plate (71) arranged above the return air port (8); the transverse wind guide plate (71) is connected to the wall of the ice-making chamber (4) and extends from the wall of the ice-making chamber (4) toward the ice-making evaporator (6); the transverse wind guide plate (71) is used to guide the air entering from the return air port (8) to flow transversely toward the ice-making evaporator (6).

3. The refrigeration device (1) according to claim 2, characterized in that: The wind guide plate (7) further comprises a longitudinal wind guide plate (72), wherein the longitudinal wind guide plate (72) is arranged on the ice-making evaporator (6) side of the transverse wind guide plate (71), wherein the top of the longitudinal wind guide plate (72) is not lower than the height of the end of the transverse wind guide plate (71) on the ice-making evaporator (6) side, and the longitudinal wind guide plate (72) and the evaporator chamber wall are arranged at intervals, and the longitudinal wind guide plate (72) is used to guide the air entering from the return air port (8) to flow downward, and to allow the air to flow to the ice-making evaporator (6) from below the longitudinal wind guide plate (72).

4. The refrigeration device (1) according to claim 2, characterized in that: The return air outlet (8) comprises a first return air outlet (81) and a second return air outlet (82) located above the first return air outlet (81); the air guide plate (7) cooperates with the first return air outlet (81); the second return air outlet (82) opens downward; the upper side of the second return air outlet (82) has an air guide surface (821); the inclination angle of the air guide surface (821) relative to the horizontal plane is between 50 degrees and 60 degrees; the air guide surface (821) is used to guide the air entering from the second return air outlet (82) to flow upward toward the ice-making evaporator (6).

5. The refrigeration device (1) according to claim 3, characterized in that: The longitudinal air guide plate (72) and the transverse air guide plate (71) are spaced apart, and part of the air entering from the return air port (8) flows upward toward the ice-making evaporator (6) through the upper end spacing of the longitudinal air guide plate (72) and the transverse air guide plate (71).

6. The refrigeration device (1) according to claim 3, characterized in that: The ice-making evaporator (6) comprises an evaporation fin (61), and the longitudinal air guide plate (72) is embedded in the evaporation fin (61).

7. The refrigeration device (1) according to claim 3, characterized in that: The longitudinal inclination angle of the longitudinal wind guide plate (72) is not greater than 10 degrees.

8. The refrigeration device (1) according to claim 2, characterized in that: The lower surface of the transverse air guide plate (71) extends horizontally, and the upper surface of the transverse air guide plate (71) is inclined inwardly and downwardly.

9. The refrigeration device (1) according to claim 4, characterized in that: The first return air port (81) and the second return air port (82) are both close to the bottom of the ice-making evaporator (6), and the first return air port (81) opens downward.

10. The refrigeration device (1) according to claim 1, characterized in that: The refrigeration device (1) further comprises an ice maker (9) arranged in the ice making chamber (4); the ice making evaporation chamber (5) is arranged at the rear side of the ice maker (9); the ice making evaporation chamber (5) is longitudinally arranged in the ice making evaporation chamber (5); a detachable air duct cover (10) is arranged in the ice making chamber (4); the air duct cover (10) forms the front wall of the ice making evaporation chamber (5); the air duct cover forms the return air port (8); a partition (11) is arranged in the storage chamber (3); the partition (11) and the side wall of the storage chamber (3) enclose the ice making chamber (4); the ice making chamber (4) is arranged at the top of the storage chamber (3); and the storage chamber (3) is a freezing chamber.

11. The refrigeration device (1) according to claim 10, characterized in that: The air duct cover (10) is formed with an air outlet (13), the refrigeration device (1) further comprises a fan (12) arranged in the ice-making evaporation chamber (5), the fan (12) being installed on the air duct cover (10) and opposite to the air outlet, the refrigeration device (1) further comprises an air guide (14) arranged in the ice-making chamber (4), the air guide (14) being arranged on the air duct cover (10) and cooperating with the air outlet (13), the air guide (14) being used for guiding the cold air flowing out of the air outlet (13) toward the ice-making machine (9).

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