A refrigeration device

Abstract

This utility model discloses a refrigeration device, including a cabinet, an air inlet cover, an air outlet cover, and a guide fan. The cabinet contains a storage cavity, an air inlet channel, and an air outlet channel. The storage cavity has an air inlet and an air outlet, with the air inlet channel communicating with the air inlet and the air outlet channel communicating with the air outlet. The air inlet cover is movably connected to the cabinet to cover or open the air inlet channel. The air outlet cover is also movably connected to the cabinet to cover or open the air inlet channel. The air outlet cover moves in a certain air outlet direction under force to open the air outlet channel. The guide fan is connected to the air outlet and guides airflow into the air outlet channel to open the air outlet cover. The air inlet and air outlet channels on the cabinet are only opened during ventilation operations, reducing the risk of external moisture or pollutants entering the storage cavity and improving the stability of the internal storage environment.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a refrigeration device. Background Technology

[0002] Refrigeration equipment is used to store food, wine, cigars, and other items at low temperatures, such as cigar cabinets, wine cabinets, and freezers. During storage, a constant temperature and humidity must be maintained inside to inhibit microbial growth, slow down the metabolism of items, and ensure freshness. However, if the equipment is sealed for extended periods, byproducts of the continuous metabolism of items inside will gradually accumulate, causing a decline in air quality, unpleasant odors, and even item spoilage. Therefore, most refrigeration equipment on the market is equipped with a dedicated ventilation system to facilitate air exchange between the inside and outside of the unit, mitigating the drawbacks of a closed environment.

[0003] Currently, most refrigeration units on the market employ a ventilation structure that uses vents on the side walls or top of the cabinet. These vents directly connect to the interior space, allowing fresh air to enter and stale air to exit. However, because these vents are unobstructed, hot and humid or cold and dry air from the outside can easily seep in, causing significant fluctuations in temperature and humidity inside the cabinet. This is especially problematic during the rainy season or in winter heating environments, potentially leading to mold growth or dehydration of items inside the unit. Furthermore, the ventilation holes rely solely on simple mesh filtration, which cannot block dust, pollen, or odors (such as kitchen fumes and perfume smells). External pollutants adhere to the surface of the item, directly affecting its quality. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art, the present invention provides a refrigeration device in which the air inlet and outlet channels on the cabinet are only opened during ventilation operations, so as to reduce the risk of external moisture or pollutants entering the cabinet and improve the stability of the internal storage environment of the cabinet.

[0005] The technical solution adopted by this utility model to solve its problem is: A refrigeration device, comprising: The cabinet has a storage cavity, an air inlet channel, and an air outlet channel inside; the storage cavity has an air inlet and an air outlet, the air inlet channel is connected to the air inlet, and the air outlet channel is connected to the air outlet. An air inlet cover is movably connected to the cabinet body to cover or open the air inlet channel; An air outlet cover is movably connected to the cabinet to cover or open the air inlet channel; the air outlet cover is used to move along an air outlet direction when subjected to force to open the air outlet channel. A guide fan is connected to the air outlet and is used to guide airflow into the air outlet channel so that the air outlet cover can be opened.

[0006] Furthermore, the cabinet body is provided with an installation cavity, an inner liner, a partition, and an exhaust fan. The inner liner is installed in the installation cavity, and the storage cavity is located in the inner liner. The partition is disposed inside the inner liner and divides the storage cavity into a flow guiding section and a refrigeration section; the partition is provided with a first flow guiding port, and the flow guiding section is connected to the refrigeration section through the first flow guiding port; the air outlet channel passes through the air outlet and is connected to the refrigeration section; the air inlet channel passes through the air inlet and is connected to the flow guiding section; The exhaust fan is located in the air guide cavity section. The exhaust fan is used to generate negative pressure to guide the air inlet cover to move along an air inlet direction to open the air inlet channel.

[0007] Furthermore, the cabinet is provided with an air inlet pipe, an air outlet pipe, a first mounting port and a second mounting port. The first mounting port and the second mounting port are distributed at intervals along the axial direction of the cabinet and are respectively connected to the mounting cavity. One end of the air inlet pipe is connected to the first mounting port, and the other end of the air inlet pipe passes through the air inlet and is connected to the flow guide section; one end of the air outlet pipe is connected to the second mounting port, and the other end of the air outlet pipe passes through the air outlet and is connected to the refrigeration section; the air inlet channel is provided in the air inlet pipe, and the air outlet channel is provided in the air outlet pipe.

[0008] Furthermore, the air inlet cover includes a first connecting ring and a first baffle plate. The first connecting ring extends circumferentially along the first mounting opening and is connected to the end wall of the first mounting opening. A third mounting opening is provided inside the first connecting ring. A first connecting arm is provided on the first baffle plate. The first baffle plate is connected to the end wall of the third mounting opening via the first connecting arm. The first baffle plate and the inner wall of the third mounting opening are spaced apart.

[0009] Furthermore, the outer periphery of the first connecting ring is provided with a first annular groove, the first annular groove extends along the circumference of the first connecting ring, and the end wall of the first mounting port is engaged with the first annular groove.

[0010] Furthermore, the air outlet cover includes a second connecting ring and a second baffle plate. The second connecting ring extends circumferentially along the second mounting port and is connected to the end wall of the second mounting port. A fourth mounting port is provided inside the second connecting ring. A second connecting arm is provided on the second baffle plate. The second baffle plate is connected to the end wall of the fourth mounting port via the second connecting arm. The second baffle plate is spaced apart from the inner wall of the fourth mounting port.

[0011] Furthermore, the outer periphery of the second connecting ring is provided with a second annular groove, the second annular groove extends along the circumference of the second connecting ring, and the end wall of the second mounting port is engaged with the second annular groove.

[0012] Furthermore, a heat-insulating cavity is formed between the inner liner and the cavity wall of the mounting cavity, and a heat-insulating layer is provided inside the heat-insulating cavity.

[0013] Furthermore, the inner liner is provided with a flow guide hood, which is connected to the air outlet, and the flow guide fan is installed inside the flow guide hood; the flow guide hood is provided with a second flow guide port, which is connected to the refrigeration cavity section.

[0014] Furthermore, the air inlet cover and the air outlet cover are made of rubber.

[0015] In summary, the refrigeration device provided by this utility model has the following technical effects: When ventilation is needed in the storage chamber of this cabinet, the guide fan can be activated. The guide fan directs the airflow in the storage chamber through the air outlet into the air outlet channel. The air outlet cover opens under the action of air pressure, and the airflow is discharged to the outside. At this time, a pressure difference is formed in the storage chamber due to the outflow of air. Under the action of external pressure, the air inlet cover opens towards the air inlet channel, allowing outside airflow to enter the chamber, completing the ventilation. When ventilation is not needed, the guide fan is turned off, and the air inlet and outlet covers close, which can reduce the entry of external moisture and impurities.

[0016] This allows the air inlet and outlet covers to be opened only during ventilation, effectively reducing the probability of external pollutants entering the storage chamber through the air inlet or outlet channels and improving the environmental stability of the storage chamber. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional view of the structure of this utility model; Figure 2 for Figure 1 Enlarged diagram of A in the middle; Figure 3 This is a schematic diagram of the structure of this utility model; Figure 4 This is a schematic diagram of the structure of this utility model from another perspective; Figure 5 This is a schematic diagram of the inner liner structure of this utility model; Figure 6 This is a schematic diagram of the partition structure of this utility model; Figure 7 This is a schematic diagram of the air inlet cover structure of this utility model; Figure 8 This is a schematic diagram of the air outlet cover structure of this utility model; Figure 9 This is a schematic diagram of the flow guide structure of this utility model; The meanings of the reference numerals in the attached figures are as follows: 10. Cabinet body; 11. Inner liner; 111. Storage cavity; 1111. Refrigeration cavity section; 1112. Air guide section; 112. Air inlet; 113. Air outlet; 12. Mounting cavity; 121. Insulation cavity section; 13. Partition; 131. First air guide port; 14. Air inlet pipe; 141. Air inlet channel; 15. Air outlet pipe; 151. Air outlet channel; 16. First mounting port; 17. Second mounting port; 18. Air guide cover; 181. Second air guide port; 20. Air inlet cover; 21. First connecting ring; 22. First baffle plate; 23. First connecting arm; 24. First annular groove; 30. Air outlet cover; 31. Second connecting ring; 22. Second baffle plate; 33. Second connecting arm; 34. Second annular groove; 40. Air guide fan; 50. Exhaust fan; 60. Refrigeration equipment. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0021] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0022] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0023] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0024] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0025] See Figures 1 to 9 This utility model discloses a refrigeration device, including a cabinet 10, an air inlet cover 20, an air outlet cover 30, and a guide fan 40. The cabinet 10 is provided with a storage cavity 111, an air inlet channel 141, and an air outlet channel 151. The storage cavity 111 has an air inlet 112 and an air outlet 113. The air inlet channel 141 is connected to the air inlet 112, and the air outlet channel 151 is connected to the air outlet 113. The air inlet cover 20 is movably connected to the cabinet 10 to cover or open the air inlet channel 141. The air outlet cover 30 is movably connected to the cabinet 10 to cover or open the air inlet channel 141. When subjected to force, the air outlet cover 30 moves along an air outlet direction to open the air outlet channel 151. The guide fan 40 is connected to the air outlet 113 and is used to guide the airflow into the air outlet channel 151 so that the air outlet cover 30 opens.

[0026] Based on the above structure, during assembly, one end of the air inlet channel 141 is connected to the air inlet 112, and the other end is connected to the external environment, so as to guide the external airflow through the air inlet 112 into the storage cavity 111; similarly, one end of the air outlet channel 151 is connected to the air outlet 113, and the other end is connected to the external environment, so as to guide the airflow through the air outlet 113 to be discharged to the outside through the air outlet channel 151.

[0027] Specifically, an air inlet cover 20 and an air outlet cover 30 are movably connected to the cabinet 10. When ventilation is not required, the air inlet cover 20 seals the air inlet channel 141 under its own weight, and the air outlet cover 30 seals the air outlet channel 151 under its own weight. When ventilation is required inside the storage cavity 111, the guide fan 40 can be activated to actively draw out the airflow in the storage cavity 111, causing the airflow to quickly enter the air outlet channel 151 through the air outlet 113. At this time, the airflow forms a positive wind pressure in the air outlet channel 151. This wind pressure overcomes the weight of the air outlet cover 30, lifting the air outlet cover 30 upwards, and the air outlet channel 151 opens accordingly, allowing the airflow in the storage cavity 111 to be discharged to the external environment. Meanwhile, as the airflow inside the cavity continues to be discharged, a negative pressure is formed inside the storage cavity 111 (the air pressure inside the cavity is lower than the air pressure of the external environment). Under the action of the pressure difference between the inside and outside, the fresh air in the external environment will exert an outward thrust on the air inlet cover 20, pushing the air inlet cover 20 to overcome its own gravity and lift it up to the inside of the air inlet channel 141. At the same time, the air inlet channel 141 opens simultaneously. At this time, the fresh airflow flows along the air inlet channel 141 to the air inlet 112, and is then drawn into the storage cavity 111, completing the exchange of airflow inside and outside the cabinet.

[0028] When ventilation is not required, the guide fan 40 is turned off, the guide fan 40 stops exhausting, the positive air pressure in the air outlet channel 151 disappears, and the air outlet cover 30 falls naturally under its own gravity, resealing the air outlet channel 151; at the same time, the negative pressure state in the storage chamber 111 disappears, and the pressure inside and outside the storage chamber 111 returns to normal, and the air inlet cover 20 also falls back to its original position under gravity, resealing the air inlet channel 141.

[0029] Therefore, when using the refrigeration device in this embodiment, the air inlet cover 20 and the air outlet cover 30 are only opened synchronously during ventilation operations. In this way, the air inlet channel 141 and the air outlet channel 151 are always in a gravity-sealed state when not ventilating. This can effectively reduce the risk of external moisture, dust, odors and other pollutants entering the storage cavity 111 through the air inlet channel 141 or the air outlet channel 151, reduce the problem of contamination of items inside the cabinet, and improve the stability and cleanliness of the temperature and humidity environment inside the storage cavity 111.

[0030] Furthermore, since the opening and closing of the air inlet cover 20 and the air outlet cover 30 rely entirely on gravity self-closing and wind pressure and pressure difference to drive the opening, the opening and closing of the air inlet cover 20 and the air outlet cover 30 can be controlled without additional electronic control components, making the structure simpler and reducing the difficulty of later maintenance.

[0031] It should be noted that in this embodiment, both the air inlet cover 20 and the air outlet cover 30 can be made into sheet structures using rubber or silicone, making them relatively lightweight and possessing good toughness and deformation capability. Thus, only a small amount of wind pressure or pressure difference is needed to overcome their own weight and lift them up, reducing the problem of difficult opening and closing caused by the excessive weight of the air inlet cover 20 and the air outlet cover 30. At the same time, due to the elasticity of the rubber or silicone, when the air inlet cover 20 or the air outlet cover 30 seals the channel, its material will slightly deform according to the contour of the air inlet / air outlet channel 151 port, tightly fitting the tiny gaps at the edge of the port, making the sealing effect of the air inlet cover 20 or the air outlet cover 30 better when it seals the air inlet channel 141 or the air outlet channel 151.

[0032] Specifically, during installation, the air inlet cover 20 and the air outlet cover 30 can be rotatably installed at the entrances of the air inlet channel 141 and the air outlet channel 151 respectively via hinges or pivots. When ventilation is not required, the air inlet cover 20 will naturally fall down due to its own weight, tightly sealing the external port of the air inlet channel 141; similarly, the air outlet cover 30 will fall down by gravity to seal the external port of the air outlet channel 151, reducing unnecessary intrusion of external airflow.

[0033] Of course, the air inlet cover 20 or the air outlet cover 30 can also be installed at the entrance of the air inlet channel 141 and the air outlet channel 151 through a strip structure such as a connecting rod or a connecting pillar, so that the air inlet cover 20 or the air outlet cover 30 is in a suspended state and can rotate around the connection point between the connecting rod and the channel, so that the channel can be opened under force.

[0034] In addition, to prevent the air inlet cover 20 from failing to open properly under the pressure difference between the inside and outside, an exhaust structure, such as an axial flow fan or a centrifugal fan, can be installed at the air inlet 112. When the air inlet cover 20 fails to open properly under the pressure difference, the fan can be started. After the fan starts, a local negative pressure will be formed in the air inlet channel 141, which will actively generate suction for the fresh air outside. This suction and the pressure difference between the inside and outside of the cabinet will work together to push the air inlet cover 20 to overcome the resistance and lift it up, guiding the airflow smoothly into the cabinet.

[0035] More specifically, in this embodiment, both the air inlet channel 141 and the air outlet channel 151 can be constructed using a pipe structure. The air outlet 113 and the air inlet 112 of the storage cavity 111 are connected to the external environment through the pipe structure to form the air inlet channel 141 and the air outlet channel 151. Of course, the air inlet channel 141 or the air outlet channel 151 can also be formed by an integrally formed hollow structure inside the cabinet 10, whichever is required.

[0036] Furthermore, the cabinet 10 is provided with an installation cavity 12, an inner liner 11, a partition 13, and an exhaust fan 50. The inner liner 11 is installed in the installation cavity 12, and the storage cavity 111 is located in the inner liner 11. The partition 13 is installed inside the inner liner 11 and divides the storage cavity 111 into a guide cavity section 1112 and a refrigeration cavity section 1111. At the same time, a first guide port 131 is provided on the partition 13, and the guide cavity section 1112 is connected to the refrigeration cavity section 1111 through the first guide port 131. The air outlet duct 151 passes through the air outlet 113 and is connected to the refrigeration cavity section 1111. The air inlet duct 141 passes through the air inlet 112 and is connected to the guide cavity section 1112. The exhaust fan 50 is located in the guide cavity section 1112 and is used to generate negative pressure to guide the air inlet cover 20 to move along an air inlet direction to open the air inlet duct 141.

[0037] Specifically, during assembly, the storage cavity 111 is divided into a flow guiding cavity section 1112 and a refrigeration cavity section 1111 by a partition 13, and a first flow guiding port 131 is provided on the partition 13 to make the flow guiding cavity section 1112 and the refrigeration cavity section 1111 connected; at the same time, the air inlet channel 141 is connected to the flow guiding cavity section 1112 and the air outlet channel 151 is connected to the refrigeration cavity section 1111. When ventilation is performed, the guide fan 40 and the exhaust fan 50 are activated simultaneously. The airflow inside the refrigeration chamber 1111 is guided to the outside through the air outlet 151. At the same time, under the action of the exhaust fan 50, a negative pressure is formed inside the guide chamber 1112, causing the air inlet cover 20 to be lifted under the action of the pressure difference and opening the air inlet 141. When fresh air enters the guide chamber 1112, it can be evenly diffused under the action of the negative pressure of the exhaust fan 50 and flows quickly to the refrigeration chamber 1111 through the first guide port 131. Finally, it is discharged from the air outlet 151, forming an air circulation, which effectively removes odors, moisture and heat from inside the refrigeration chamber 1111 and improves the ventilation efficiency.

[0038] More specifically, since the external airflow must first enter the guide cavity section 1112 before entering the refrigeration cavity section 1111, even if the external airflow carries small particles such as impurities or pollutants when it is introduced through the air inlet channel 141, it will first enter the guide cavity section 1112 after being introduced. At this time, the pollutants carried in the air will also be initially settled under their own gravity, making the airflow entering the refrigeration cavity section 1111 through the first guide port 131 relatively clean. This effectively reduces the risk of pollutants directly entering the refrigeration cavity section 1111 and improves the stability and cleanliness of the storage environment inside the refrigeration cavity section 1111.

[0039] In addition, since the exhaust fan 50 is located in the guide cavity section 1112, the air energy generated by the exhaust fan 50 can be concentrated on a relatively independent space, making it easier to form a stable negative pressure. This can then stably overcome the weight of the air inlet cover 20 and fluctuations in external air pressure (such as in a low external air pressure environment), allowing the air inlet cover 20 to open stably in the direction of air intake, reducing the problem of poor air intake caused by passive pressure difference.

[0040] Furthermore, the cabinet 10 is provided with an air inlet pipe 14, an air outlet pipe 15, a first mounting port 16, and a second mounting port 17. The first mounting port 16 and the second mounting port 17 are distributed at intervals along the axial direction of the cabinet 10 and are respectively connected to the mounting cavity 12. One end of the air inlet pipe 14 is connected to the first mounting port 16, and the other end of the air inlet pipe 14 passes through the air inlet 112 and is connected to the guide cavity section 1112. One end of the air outlet pipe 15 is connected to the second mounting port 17, and the other end of the air outlet pipe 15 passes through the air outlet 113 and is connected to the refrigeration cavity section 1111. The air inlet channel 141 is provided in the air inlet pipe 14, and the air outlet channel 151 is provided in the air outlet pipe 15.

[0041] Specifically, during assembly, both ends of the air inlet pipe 14 are connected to the air inlet 112 and the first mounting port 16 respectively, forming an air inlet channel 141 through the internal piping of the air inlet pipe 14; similarly, both ends of the air outlet pipe 15 are connected to the air outlet 113 and the second mounting port 17 respectively, forming an air outlet channel 151 through the internal piping of the air outlet pipe 15. Thus, if the air inlet channel 141 or the air outlet channel 151 is blocked or damaged, it can be replaced simply by disassembling the air inlet pipe 14 or the air outlet pipe 15. Therefore, compared to forming the air inlet channel 141 and the air outlet channel 151 with an integrally formed pipe inside the cabinet 10, the arrangement of the air inlet pipe 14 and the air outlet pipe 15 in this embodiment is more conducive to later maintenance.

[0042] It should be noted that the air inlet pipe 14 and the air outlet pipe 15 can be made of existing stainless steel pipes or plastic pipes and other tubular structures. During installation, they can be connected and energized to the first mounting port 16, the second mounting port 17, the air inlet 112 and the air outlet 113 respectively by screws, bolts or flanges.

[0043] Furthermore, the air inlet cover 20 includes a first connecting ring 21 and a first baffle plate 22. The first connecting ring 21 extends circumferentially along the first mounting opening 16 and is connected to the end wall of the first mounting opening 16. A third mounting opening is provided inside the first connecting ring 21. A first connecting arm 23 is provided on the first baffle plate 22. The first baffle plate 22 is connected to the end wall of the third mounting opening via the first connecting arm 23. The first baffle plate 22 and the inner wall of the third mounting opening are spaced apart.

[0044] Specifically, the outer diameter of the first connecting ring 21 is matched with the inner diameter of the first mounting port 16 so that the first connecting ring 21 can extend into the first mounting port 16 and extend circumferentially along the first mounting port 16 and connect with the end wall to form a circumferentially extended fixed connection structure. Compared with the single-point or partial connection method, the air inlet cover 20 can evenly distribute the impact force to the entire circumferential direction of the end wall of the first mounting port 16 when it is subjected to force, so that the entire air inlet cover 20 structure is more stable after installation and is not easy to loosen.

[0045] Furthermore, since the first baffle plate 22 is connected to the end wall of the third mounting port via the first connecting arm 23 and is spaced apart from the inner wall of the third mounting port, the space provides clearance for the rotation of the third baffle plate, allowing the first baffle plate 22 to be smoothly lifted under wind pressure or pressure difference. Thus, when the first baffle plate 22 is subjected to force, it can use the first connecting arm 23 as a fulcrum and rotate around the connection point between the first connecting arm 23 and the first connecting ring 21, making it easier to be lifted under wind pressure or internal and external pressure difference, thereby making it easier to open the air inlet channel 141; when the force disappears, the first baffle plate 22 returns to its original position under its own gravity, thereby sealing the air inlet channel 141.

[0046] More specifically, in this embodiment, a first annular groove 24 is provided on the outer periphery of the first connecting ring 21. The first annular groove 24 extends circumferentially along the first connecting ring 21. During assembly, the first connecting ring 21 is brought close to the end wall of the first mounting port 16, and the first annular groove 24 is aligned with the end wall of the first mounting port 16, so that the end wall of the first mounting port 16 can be smoothly engaged with the first annular groove 24, making the first connecting ring 21 and the first mounting port 16 engage and connect, thus achieving detachability. If the air inlet cover 20 is damaged later, only external force needs to be applied to the first connecting ring 21 to disengage the end wall of the first mounting port 16 from the first annular groove 24, and the air inlet cover 20 can be removed, which is convenient for later maintenance.

[0047] Similarly, the air outlet cover 30 includes a second connecting ring 31 and a second baffle plate 22. The second connecting ring 31 extends circumferentially along the second mounting opening 17 and connects to the end wall of the second mounting opening 17. A fourth mounting opening is provided inside the second connecting ring 31. A second connecting arm 33 is provided on the second baffle plate 22. The second baffle plate 22 is connected to the end wall of the fourth mounting opening via the second connecting arm 33. The second baffle plate 22 is spaced apart from the inner wall of the fourth mounting opening. During assembly, the second connecting ring 31 can be inserted into the second mounting opening 17 and extends circumferentially along the second mounting opening 17 and connects to the end wall, forming a circumferentially extended fixed connection structure. Compared with single-point or partial connection methods, this allows the air outlet cover 30 to evenly distribute the impact force to the entire circumferential direction of the end wall of the second mounting opening 17 when subjected to force, making the entire air outlet cover 30 structure more stable after installation and less prone to loosening.

[0048] Furthermore, since the second baffle 22 is connected to the end wall of the fourth mounting port via the second connecting arm 33 and is spaced apart from the inner wall of the fourth mounting port, the space provides clearance for the rotation of the fourth baffle, allowing the second baffle 22 to be smoothly lifted under wind pressure or pressure difference. When the force disappears, the second baffle 22 returns to its original position under its own gravity, thereby sealing the air inlet channel 141.

[0049] More specifically, a second annular groove 34 is provided on the outer periphery of the second connecting ring 31. The second annular groove 34 extends circumferentially along the second connecting ring 31. During assembly, the second connecting ring 31 is brought close to the end wall of the second mounting port 17, and the second annular groove 34 is aligned with the end wall of the second mounting port 17 so that the end wall of the second mounting port 17 can be smoothly engaged with the second annular groove 34, so that the second connecting ring 31 and the end wall of the second mounting port 17 are engaged and connected, making it detachable. If the air outlet cover 30 is damaged later, only external force needs to be applied to the second connecting ring 31 to disengage the end wall of the second mounting port 17 from the second annular groove, and the air outlet cover 30 can be removed for easy maintenance later.

[0050] Preferably, in this embodiment, both the air inlet cover 20 and the air outlet cover 30 are made of rubber. The good elasticity and flexibility of rubber allow it to fit tightly against the inner walls of the air inlet channel 141 and the air outlet channel 151. When the air inlet cover 20 and the air outlet cover 30 are closed, the rubber fills the tiny gap between the cover and the cabinet 10, forming a reliable seal and reducing the probability of air leakage from the air inlet channel 141 or the air outlet channel 151 when not in operation.

[0051] Preventing foreign objects from entering: The tight seal effectively prevents dust, insects, moisture, and other foreign objects from entering the cabinet 10. Dust and insects may contaminate the items inside the cabinet, affecting their quality and hygiene; moisture may increase humidity inside the cabinet, causing items to mold and spoil. The rubber lid acts as a barrier, keeping these foreign objects out and protecting the items inside the cabinet.

[0052] Furthermore, a heat-insulating cavity section 121 is formed between the inner liner 11 and the cavity wall of the mounting cavity 12, and a heat-insulating layer is provided inside the heat-insulating cavity section 121.

[0053] Specifically, since the inner wall of the inner liner 11 and the mounting cavity 12 are separated to form a heat insulation cavity 121, the existence of the heat insulation cavity 121 increases the path length of heat transfer from the external environment to the interior of the inner liner 11, thereby reducing the probability of heat being introduced from the external environment into the interior of the inner liner 11, improving the overall heat insulation performance, and enabling the temperature inside the inner liner 11 to be maintained within the set range for a longer time, reducing fluctuations caused by changes in the external temperature.

[0054] In addition, by setting an insulation layer in the insulation cavity section 121, the risk of external heat entering the inner liner 11 is further reduced. At the same time, the presence of the insulation layer and the insulation cavity section 121 can reduce the transfer of cold energy inside the inner liner 11 to the outside, indirectly reducing the operating time and energy consumption of the refrigeration equipment 60 such as the compressor inside the cabinet 10.

[0055] It should be noted that the insulation layer in this embodiment can be made of low thermal conductivity materials such as rock wool board or polyurethane into a plate or layered structure, and then fixed to the inner wall of the insulation cavity by means of adhesive bonding or connectors; of course, polyurethane foam can also be used to form the insulation layer in the insulation cavity.

[0056] More specifically, a flow guide shroud 18 is provided inside the inner liner 11. During assembly, the flow guide fan 40 can be fixed inside the flow guide shroud 18 using screws or bolts and other connecting parts. Then, the flow guide shroud 18 of the assembled flow guide fan 40 is installed at the air outlet 113 and communicates with the air outlet 113. The flow guide shroud 18 provides a stable installation base for the flow guide fan 40.

[0057] Furthermore, since the air guide shroud 18 is provided with a second air guide port 181, which is connected to the refrigeration chamber section 1111, when the air guide fan 40 and the air guide shroud are installed in place, the second air guide port 181 and the air outlet 113 can form a smooth airflow channel, so that the air guide fan 40 is connected to the air outlet 113 and the refrigeration chamber section 1111 respectively. Under the action of the air guide fan 40, the airflow inside the refrigeration chamber section 1111 can be drawn in through the second air guide port 181 along a predetermined path and smoothly discharged through the air outlet 113, thereby realizing the guidance and ventilation of the airflow inside the refrigeration chamber section 1111.

[0058] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A refrigeration device, characterized in that, include: The cabinet contains a storage cavity, an air inlet channel, and an air outlet channel. The storage cavity has an air inlet and an air outlet, the air inlet channel is connected to the air inlet, and the air outlet channel is connected to the air outlet; An air inlet cover is movably connected to the cabinet body to cover or open the air inlet channel; An air outlet cover is movably connected to the cabinet body to cover or open the air inlet channel; The air outlet cover is used to move along an air outlet direction when subjected to force, so as to open the air outlet channel; A guide fan is connected to the air outlet and is used to guide airflow into the air outlet channel so that the air outlet cover can be opened.

2. The refrigeration device as described in claim 1, characterized in that, The cabinet is equipped with an installation cavity, an inner liner, a partition, and an exhaust fan. The inner liner is installed in the installation cavity, and the storage cavity is located in the inner liner. The partition is disposed inside the inner liner and divides the storage cavity into a flow guiding section and a refrigeration section; the partition is provided with a first flow guiding port, and the flow guiding section is connected to the refrigeration section through the first flow guiding port; the air outlet channel passes through the air outlet and is connected to the refrigeration section; the air inlet channel passes through the air inlet and is connected to the flow guiding section; The exhaust fan is located in the air guide cavity section. The exhaust fan is used to generate negative pressure to guide the air inlet cover to move along an air inlet direction to open the air inlet channel.

3. The refrigeration device as described in claim 2, characterized in that, The cabinet is provided with an air inlet pipe, an air outlet pipe, a first mounting port and a second mounting port. The first mounting port and the second mounting port are distributed at intervals along the axial direction of the cabinet and are respectively connected to the mounting cavity. One end of the air inlet pipe is connected to the first mounting port, and the other end of the air inlet pipe passes through the air inlet and is connected to the flow guide section; one end of the air outlet pipe is connected to the second mounting port, and the other end of the air outlet pipe passes through the air outlet and is connected to the refrigeration section; the air inlet channel is provided in the air inlet pipe, and the air outlet channel is provided in the air outlet pipe.

4. The refrigeration device as described in claim 3, characterized in that, The air inlet cover includes a first connecting ring and a first baffle plate. The first connecting ring extends circumferentially along the first mounting opening and is connected to the end wall of the first mounting opening. A third mounting opening is provided inside the first connecting ring. A first connecting arm is provided on the first baffle plate. The first baffle plate is connected to the end wall of the third mounting opening via the first connecting arm. The first baffle plate and the inner wall of the third mounting opening are spaced apart.

5. The refrigeration device as described in claim 4, characterized in that, The outer periphery of the first connecting ring is provided with a first annular groove, which extends along the circumference of the first connecting ring, and the end wall of the first mounting port is engaged with the first annular groove.

6. The refrigeration apparatus as described in claim 3, characterized in that, The air outlet cover includes a second connecting ring and a second baffle plate. The second connecting ring extends circumferentially along the second mounting port and is connected to the end wall of the second mounting port. A fourth mounting port is provided inside the second connecting ring. A second connecting arm is provided on the second baffle plate. The second baffle plate is connected to the end wall of the fourth mounting port via the second connecting arm. The second baffle plate is spaced apart from the inner wall of the fourth mounting port.

7. The refrigeration apparatus as described in claim 6, characterized in that, The outer periphery of the second connecting ring is provided with a second annular groove, which extends along the circumference of the second connecting ring, and the end wall of the second mounting port is engaged with the second annular groove.

8. The refrigeration apparatus as described in claim 2, characterized in that, The inner liner and the cavity wall of the mounting cavity are spaced apart to form a heat-insulating cavity section, and the heat-insulating cavity section is provided with a heat-insulating layer.

9. The refrigeration apparatus as described in claim 2, characterized in that, The inner liner is provided with a flow guide hood, which is connected to the air outlet, and the flow guide fan is installed inside the flow guide hood; the flow guide hood is provided with a second flow guide port, which is connected to the refrigeration cavity section.

10. The refrigeration apparatus according to any one of claims 1-9, characterized in that, The air inlet cover and the air outlet cover are made of rubber.

Images