Refrigeration equipment

Abstract

The utility model discloses refrigeration equipment which comprises a first oxygen adjusting chamber, an oxygen adjusting module, a second oxygen adjusting chamber and an air guide piece, and the first oxygen adjusting chamber comprises a first cavity; the oxygen adjusting module communicates with the first cavity and adjusts the oxygen concentration in the first cavity; the second oxygen adjusting chamber comprises a second cavity, and the second cavity is communicated with the first cavity; and the air guide piece drives the airflow in the first cavity to blow to the second cavity. In this way, on one hand, a natural oxygen concentration gradient is formed between the two chambers, and the height difference of the oxygen concentration of the different chambers is formed; on the other hand, by controlling the rotating speed and the running time of the air guide piece, the second oxygen adjusting chamber can be adjusted to any value in the range interval between the atmosphere oxygen concentration and the oxygen concentration of the first oxygen adjusting chamber, and flexible adjustment of different oxygen concentration environments is achieved in the same refrigeration equipment at low cost; the requirements of different food materials are met.

Description

Technical Field

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

[0002] Existing refrigeration equipment technology, especially refrigeration equipment used to preserve food, can usually only adjust the temperature. However, different gas concentrations have a direct and significant impact on the preservation effect of certain ingredients (such as fresh vegetables, fruits, and fresh meat). For example, different concentrations of oxygen, carbon dioxide, water vapor, etc. are suitable for different ingredients. The respiration and oxidation reaction rates of fresh vegetables and fruits in high-oxygen or low-oxygen environments are different. Adjusting the oxygen concentration can significantly reduce their spoilage and oxidation rates. Similarly, for meat ingredients, the oxygen concentration not only affects their color, but also inhibits the growth and reproduction of anaerobic bacteria.

[0003] Some refrigeration equipment has attempted to incorporate oxygen regulation technology, but this often only allows for single-chamber oxygen concentration adjustment, making it difficult to provide suitable oxygen concentration ranges tailored to the needs of different ingredients. Consequently, existing technology has significant limitations in multi-chamber oxygen regulation, failing to meet the need for independent oxygen concentration regulation in multiple chambers. Summary of the Invention

[0004] In order to solve the problem of how to meet the requirements of multiple oxygen concentrations in the prior art, the purpose of the present invention is to provide a refrigeration device that can form different concentrations in two compartments and has a convenient adjustment process.

[0005] To achieve the above-mentioned purpose of the utility model, one embodiment of the utility model provides a refrigeration device, comprising:

[0006] A first oxygen regulating compartment, comprising a first cavity;

[0007] an oxygen regulating module, which is connected to the first cavity and regulates the oxygen concentration in the first cavity;

[0008] A second oxygen regulating compartment, comprising a second cavity, wherein the second cavity is communicated with the first cavity;

[0009] An air guide member drives the air flow in the first cavity to blow toward the second cavity.

[0010] As a further improvement of the present invention, the second oxygen regulating chamber is arranged below the first oxygen regulating chamber, the first oxygen regulating chamber includes an air outlet opening downward, and the second oxygen regulating chamber includes an air inlet opening upward, and the air outlet is connected to the air inlet.

[0011] As a further improvement of the present invention, the second oxygen conditioning chamber includes an upper wall and an air guide cover, the upper wall is provided with a groove, the air guide member is accommodated in the groove, the air guide cover is buckled with the groove, and the groove and the air guide cover enclose an air flow channel;

[0012] The air guide cover includes the air inlet, the groove includes a ventilation hole facing the second cavity, and the air inlet, the air flow channel and the ventilation hole are connected in sequence.

[0013] As a further improvement of the present invention, the air guide member is configured as a centrifugal fan.

[0014] As a further improvement of the present invention, the centrifugal fan is arranged in the central area of ​​the upper wall;

[0015] A second drawer is housed in the second oxygen conditioning compartment. The second drawer includes a second opening facing upwards, and the ventilation hole faces the second opening.

[0016] As a further improvement of the present invention, the second oxygen regulating chamber further includes a first sealing member, which is clamped between the upper wall and the air guide cover.

[0017] As a further improvement of the present invention, the refrigeration device further includes a second sealing member, which is clamped between the air outlet and the air inlet.

[0018] As a further improvement of the present invention, the air outlet is tapered, and the cross section of the air outlet gradually decreases in the direction approaching the first cavity.

[0019] As a further improvement of the present invention, the second sealing member includes a first skirt and a second skirt arranged in sequence from top to bottom, the outer diameter of the first skirt is smaller than the outer diameter of the second skirt, and the first skirt and the second skirt both abut against the air outlet.

[0020] As a further improvement of the present invention, the air inlet includes a limiting bottom wall, a tube wall and a limiting top wall arranged in sequence from bottom to top, and the second sealing member is sleeved on the outer surface of the tube wall and is held between the limiting bottom wall and the limiting top wall.

[0021] Compared with the commonly used technology, the present invention has the following beneficial effects: by improving the structure and gas path design of the refrigeration equipment, flexible regulation of different oxygen concentrations in multiple chambers is achieved, and the air guide is used to guide the airflow that has adjusted the oxygen concentration through the oxygen adjustment module to flow from the first oxygen adjustment chamber to the second oxygen adjustment chamber. On the one hand, a natural oxygen concentration gradient is formed between the two chambers. Taking oxygen-deficient gas as an example, the oxygen concentration in the first oxygen adjustment chamber is lower than that in the second oxygen adjustment chamber. Taking oxygen-rich gas as an example, the oxygen concentration in the first oxygen adjustment chamber is higher than that in the second oxygen adjustment chamber. On the other hand, by controlling the speed and operation time of the air guide, the second oxygen adjustment chamber can be adjusted to any value in the range between the atmospheric oxygen concentration and the oxygen concentration of the first oxygen adjustment chamber. The adjustment is precise, which realizes the flexible adjustment of different oxygen concentration environments at low cost in the same refrigeration equipment, meets the effect of meeting the needs of different food ingredients, and thus improves the overall energy efficiency and use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a refrigeration device according to an embodiment of the present invention;

[0023] Figure 2 This is a partial structural diagram of a refrigeration device according to an embodiment of the present utility model;

[0024] Figure 3 yes Figure 2 Exploded diagram of some structures in ;

[0025] Figure 4 yes Figure 3 An exploded view of the second oxygen conditioning compartment, air guide, and oxygen conditioning module;

[0026] Figure 5 yes Figure 3 Exploded view of the first oxygen conditioning compartment in the figure;

[0027] Figure 6 This is a top view of the second oxygen conditioning chamber, the air guide and the oxygen conditioning module in one embodiment of the present invention;

[0028] Figure 7 yes Figure 6 A partial enlarged view of point A in the middle;

[0029] Figure 8 This is a cross-sectional view of the second oxygen regulating chamber, the air guide and the oxygen regulating module according to one embodiment of the present invention;

[0030] Figure 9 yes Figure 8 A partial enlarged view of point B in the middle;

[0031] Figure 10 This is a schematic structural diagram of the first oxygen regulating chamber from a bottom perspective according to an embodiment of the present invention;

[0032] Figure 11 is a sectional view of the abutment of the first oxygen adjusting chamber and the second oxygen adjusting chamber of an embodiment of the present application;

[0033] In the present application, 100, refrigeration equipment;10, first oxygen adjusting chamber;101, first cavity;11, first drawer;12, air outlet;13, first air inlet;14, first return air outlet;20, second oxygen adjusting chamber;201, second cavity;21, upper wall;211, groove;212, ventilation hole;213, air flow channel;214, limiting bottom wall;215, pipe wall;216, limiting top wall;22, air guide cover;221, air inlet;23, first sealing element;24, second drawer;30, oxygen adjusting module;31, second air inlet;32, second return air outlet;40, air guide element;41, windward end face;50, second sealing element;51, first skirt;52, second skirt. DETAILED DESCRIPTION

[0034] The present application will be described in detail below with reference to the specific embodiments shown in the drawings. However, these embodiments do not limit the present application, and the changes in structure, method, or function made by those skilled in the art based on these embodiments are all within the scope of protection of the present application.

[0035] It should be understood that the terms such as "upper", "above", "lower", "below" used herein to indicate the spatial relative position are for the purpose of convenient description to describe the relationship of one unit or feature relative to another unit or feature as shown in the drawings. The spatial relative position terms can be intended to include different orientations of the device in use or work other than the orientation shown in the drawings.

[0036] An embodiment of the present application provides a refrigeration equipment 100 which can form different concentrations in two chambers and is convenient to adjust. The air flow guidance from the first oxygen adjusting chamber 10 to the second oxygen adjusting chamber 20 is realized, so that different oxygen concentration gradients are formed in the two chambers. The different preservation needs of various food materials are met, and the preservation effect and the energy efficiency of the equipment are improved.

[0037] The refrigeration equipment 100 of the present embodiment can be a refrigerator, a freezer, a wine cabinet, a refrigerated cabinet, etc. Hereinafter, the refrigeration equipment 100 is taken as a refrigerator as an example for description, and the overall structure of the refrigerator is as shown in Figure 1 .

[0038] The refrigerator includes a refrigeration system, a refrigeration compartment, a first oxygen conditioning compartment 10, a second oxygen conditioning compartment 20, a cooling assembly and an oxygen conditioning module 30, wherein the refrigeration system includes a compressor, a condenser, a capillary tube, an evaporator, a refrigeration pipeline, etc., wherein the evaporator can be located in the evaporator compartment, and there can be one or more evaporators. For example, for a dual-system refrigerator with a refrigeration compartment and a freezer compartment for refrigeration respectively, a refrigeration evaporator and a freezing evaporator can be provided respectively.

[0039] The cooling assembly includes a cooling air supply circuit, a first fan, and a first damper. When the first fan is running and the first damper is open, the cooling air supplied by the cooling air supply circuit to the first oxygen conditioning compartment 10 flows only outside the oxygen conditioning compartment, and the cooling air is indirectly transferred into the first oxygen conditioning compartment 10 through the outer wall. The cooling compartment can be a refrigeration compartment, a freezer compartment, a variable temperature compartment, etc. The following description of the cooling compartment uses the refrigeration compartment as an example.

[0040] like Figure 2 、 3 As shown, the first oxygen regulating chamber 10 and the second oxygen regulating chamber 20 are chambers dedicated to preserving fresh food. The oxygen concentration inside them can be adjusted. The oxygen regulating module 30 is used to adjust the oxygen concentration in the first oxygen regulating chamber 10 and the second oxygen regulating chamber 20, so that the oxygen concentration in the first oxygen regulating chamber 10 and the second oxygen regulating chamber 20 can be lower or higher than the external oxygen concentration. According to the characteristics of the stored food, different oxygen concentrations are adjusted to ensure that the food is in the optimal storage state.

[0041] The oxygen regulating module 30 is connected to the first cavity 101 and directly regulates the oxygen concentration in the first cavity 101 . Since the first oxygen regulating chamber 10 is connected to the second oxygen regulating chamber 20 , the oxygen regulating module 30 indirectly regulates the oxygen concentration in the second cavity 201 .

[0042] The first oxygen conditioning compartment 10 includes a first cavity 101 having an opening. A first drawer 11 is accommodated within the first cavity 101 through the opening. The first drawer 11 includes a first opening. A user pulls out the first drawer 11 through the first opening and takes food into and out of the first drawer 11 through the first opening. The second oxygen conditioning compartment 20 includes a second cavity 201 having a second opening. The second cavity 201 communicates with the first cavity 101. The second oxygen conditioning compartment 20 contains a second drawer 24. The second drawer 24 includes a second opening that faces upward, and the ventilation hole 212 faces the second opening.

[0043] To clearly illustrate the positions and directions described in this embodiment, in this embodiment, up and down are defined with reference to the direction of gravity, that is, the direction of gravity is down and the opposite direction is up. When a user operates items inside the refrigerator, the user stands in front of the refrigerator, the opposite direction is the back, and the left and right sides of the plane of front, back, and top are respectively. Accordingly, the first opening is located in front of the first oxygen conditioning compartment 10, and the first opening is located above the first drawer 11, and the first drawer 11 is pushed and pulled in the front-to-back direction. Similarly, the second opening is located in front of the second oxygen conditioning compartment 20, and the second opening is located above the second drawer 24, and the second drawer 24 is pushed and pulled in the front-to-back direction.

[0044] Taking the oxygen regulating module 30 for regulating a low oxygen environment as an example, through precise control of the oxygen concentration, a stable low oxygen environment can be provided for the stored food, inhibiting its respiration and prolonging its shelf life. The benefit of a low oxygen environment is that it can significantly reduce the oxidation rate of food and reduce the reproduction of microorganisms. This is especially true for some easily perishable fruits and vegetables, where the preservation effect is particularly significant. Because this solution can accurately control the oxygen concentration, it avoids the problem of unstable food quality caused by excessive fluctuations in oxygen concentration in traditional equipment, thereby ensuring a long-term preservation effect.

[0045] The oxygen concentration of the outside atmosphere is generally about 21%, and the oxygen concentration of the first oxygen regulating chamber 10 and the second oxygen regulating chamber 20 can be reduced to a range of 15% to 20%.

[0046] Taking the oxygen regulation module 30 as an example, some ingredients, such as fresh pork, beef, and mutton, store better in environments with higher oxygen concentrations. The higher oxygen concentration in high-oxygen packaging can inhibit the growth and reproduction of anaerobic bacteria. It also binds to deoxymyoglobin on the muscle surface, forming a thicker layer of oxymyoglobin, maintaining the meat's bright red color and improving its color stability. Furthermore, the higher oxygen concentration protects the meat's color, as lower oxygen concentrations induce the oxidation of deoxymyoglobin into metmyoglobin. Under higher oxygen concentrations, the surface of meat is primarily composed of oxymyoglobin, which does not directly oxidize to metmyoglobin. The oxygen regulation module 30 can also be used to regulate the oxygen concentration in the first and second oxygen regulation compartments 10 and 20, ensuring that the oxygen concentration there is higher than the ambient oxygen concentration, for example, to a range of 22% to 25%.

[0047] In addition, the oxygen regulation module 30 includes at least one anode and at least one cathode, the anode is controllably connected to the positive electrode of the power supply, and the cathode is controllably connected to the negative electrode of the power supply.

[0048] In this way, when the controller controls the oxygen regulation module 30 to operate, under the control of the controller, the positive pole of the power supply is connected to the anode and the negative pole of the power supply is connected to the cathode, that is, the power supply supplies power to the oxygen regulation module 30; and when the controller controls the oxygen regulation module 30 to stop, under the control of the controller, the positive pole cut end of the power supply is connected to the anode and the negative pole cut end of the power supply is connected to the cathode, that is, the power supply stops supplying power to the oxygen regulation module 30.

[0049] The oxygen regulating module 30 further includes an inner cavity capable of accommodating at least an electrolyte, a first side of the cathode is exposed to the inner cavity, and a second side of the cathode is exposed to the air outside the oxygen regulating module 30 .

[0050] When the oxygen regulating module 30 is in operation, that is, when powered on, the cathode is used to consume oxygen in the air outside the oxygen regulating module 30 through an electrochemical reaction. Specifically, oxygen undergoes a reduction reaction at the cathode, and the reaction formula is O2+2H2O+4e - →4OH - In this way, an oxygen-deficient fresh-keeping atmosphere can be formed outside the oxygen regulating module 30.

[0051] One side or both sides of the anode are exposed to the inner cavity, and the anode is used to generate oxygen in the inner cavity through electrochemical reaction to form an oxygen-rich fresh-keeping atmosphere. Specifically, OH in the electrolyte - Oxidation reaction can occur at the anode and generate oxygen, the reaction formula is 4OH - →O2+2H2O+4e - The generated oxygen is collected to form an oxygen-rich fresh-keeping atmosphere.

[0052] In this way, the oxygen concentration can be adjusted according to demand, and a suitable oxygen-poor or oxygen-rich preservation atmosphere can be selected.

[0053] The following description uses the example of the oxygen conditioning module 30 primarily regulating a hypoxic environment. Specifically, the oxygen concentration of the gas output by the oxygen conditioning module 30 is relatively low, while the oxygen concentration of the recovered gas is relatively high. Thus, the oxygen concentration in the first oxygen conditioning chamber 10 is lower than that in the second oxygen conditioning chamber 20. While the oxygen concentration in the second oxygen conditioning chamber 20 is higher than that in the first oxygen conditioning chamber 10, it is lower than the ambient oxygen concentration.

[0054] like Figure 4 、 6As shown in FIG. 9, the air guide 40 drives the airflow in the first cavity 101 to blow towards the second cavity 201. In a specific oxygen concentration adjustment process, the oxygen concentration in the first oxygen adjustment room 10 can be adjusted first to a lower oxygen concentration, and then the air with a lower oxygen concentration is blown to the second cavity 201 under the action of the air guide 40. On the one hand, the oxygen concentration of the second cavity 201 will not be lower than that of the first cavity 101, and on the other hand, by controlling the rotating speed and operating time of the air guide 40, the second oxygen adjustment room 20 can be adjusted to any value in the range between the atmospheric oxygen concentration and the oxygen concentration of the first oxygen adjustment room 10, and the oxygen concentration in the first cavity 101 and the second cavity 201 is accurately adjusted to form different oxygen concentration intervals, thereby realizing flexible adjustment of different oxygen concentration environments in the same refrigeration equipment 100 at low cost.

[0055] In this configuration, the oxygen concentration of the first oxygen adjustment room 10 is the lowest, which can be used to store food materials that are most sensitive to oxygen concentration, such as fresh-cut fruits and tender leaf vegetables. The oxygen concentration of the second oxygen adjustment room 20 is slightly higher but still lower than that of the external environment, which can be used to store general fruits and vegetables or meat food materials. Through this gradient oxygen concentration distribution, the oxidation rate and respiration of different types of food materials can be effectively inhibited, and cross-contamination problems between food materials caused by uneven oxygen concentration can be avoided. In addition, by adjusting the working state of the air guide 40 and the output parameters of the oxygen adjustment module 30, the oxygen concentration can be flexibly adjusted to meet the diversified needs in different scenarios, thereby greatly improving the preservation effect of food materials.

[0056] As shown in FIGS. 1-3, Figure 2 , 3 The second oxygen adjustment room 20 is arranged below the first oxygen adjustment room 10. The first oxygen adjustment room 10 includes an air outlet 12 opening downward, and the second oxygen adjustment room 20 includes an air inlet 221 opening upward. The air outlet 12 and the air inlet 221 are in butt joint.

[0057] By butt joint of the air outlet 12 of the first oxygen adjustment room 10 and the air inlet 221 of the second oxygen adjustment room 20, vertical flow of air is realized. The vertical layout can save horizontal space, effectively utilize the structure layout of the refrigeration equipment 100 in the upward and downward direction which is longer, improve the use efficiency of the internal space of the equipment, and simplify the design of the air flow channel 213, facilitating the later maintenance and management.

[0058] As shown in FIGS. 1-3, Figure 4As shown, the second oxygen conditioning chamber 20 includes an upper wall 21 and an air guide cover 22. The upper wall 21 is provided with a groove 211. The air guide member 40 is accommodated in the groove 211. The air guide cover 22 is engaged with the groove 211. The groove 211 and the air guide cover 22 enclose an air flow channel 213; the air guide cover 22 includes an air inlet 221, and the groove 211 includes a ventilation hole 212 facing the second cavity 201. The air inlet 221, the air flow channel 213 and the ventilation hole 212 are connected in sequence.

[0059] The air guide cover 22 is used for sealing, forming an independent airflow channel 213 within the air guide member 40. This ensures stable airflow from the first cavity 101 to the second cavity 201, effectively preventing gas leakage around the blower. This ensures that the oxygen concentration within the airflow channel 213 is not subject to external interference, improving oxygen regulation accuracy and overall sealing. Furthermore, enclosing the air guide member 40 between the air guide cover 22 and the groove 211 reduces noise during operation and mitigates the impact of vibration from the air guide member 40 on the overall stability of the device.

[0060] Furthermore, the air guide 40 of this embodiment is configured as a centrifugal fan. Utilizing the characteristic of a centrifugal fan that can provide a strong centrifugal force, the centrifugal fan can provide a higher static pressure when rotating at high speed, so that the airflow in the channel flows more smoothly, and a stable and strong airflow can be generated in a smaller volume of space, so that the low-oxygen gas in the oxygen adjustment module 30 is quickly and evenly distributed in the first oxygen adjustment chamber 10 and the second oxygen adjustment chamber 20, ensuring that the oxygen concentration in the second oxygen adjustment chamber 20 is quickly adjusted to the right position. In addition, the centrifugal fan can also flexibly change the flow rate and flow of the airflow by adjusting the rotational speed, thereby more accurately controlling the flow state of the gas between the two chambers. Figure 4 and 7 As shown, the windward end surface 41 of the centrifugal fan faces the air outlet 12 , and the air outlet end on the side of the centrifugal fan faces the air inlet 221 .

[0061] Furthermore, a centrifugal fan is arranged in the central area of ​​the upper wall 21, so that the airflow is evenly diffused in all directions, avoiding the problem of high or low oxygen concentration in certain areas due to fan bias. After such gas is blown into the second cavity 201, the airflow forms a stable circulation structure in the second cavity 201, and blows spirally toward the entire second drawer 24, thereby improving the uniformity of oxygen in the second oxygen conditioning chamber 20, ensuring that the gas in every corner of the second drawer 24 can be fully exchanged, and improving the overall uniformity and efficiency of oxygen conditioning.

[0062] like Figure 4As shown, the second oxygen conditioning chamber 20 also includes a first seal 23. The first seal 23 is clamped between the upper wall 21 and the air guide cover 22, isolating the airflow channel 213 from the refrigerator compartment and preventing irregular airflow. Furthermore, the first seal 23 ensures the precise connection between the air guide cover 22 and the groove 211, preventing gas leakage caused by inaccurate connection. Furthermore, the provision of the first seal 23 also helps reduce vibration and noise during fan operation, thereby improving the overall user comfort and operating life of the device.

[0063] like Figure 2 、 3 As shown in Figures 5 and 10, the bottom wall of the first oxygen conditioning chamber 10 is provided with a first air inlet 13 and a first air return port 14 communicating with the first cavity 101. The oxygen conditioning module 30 is provided below the first oxygen conditioning chamber 10. The oxygen conditioning module 30 includes a second air inlet 31 and a second air return port 32. The second air inlet 31 is connected to the first air inlet 13, and the second air return port 32 is connected to the first air return port 14. The oxygen conditioning module 30 adjusts the oxygen concentration in the first cavity 101 through the second air inlet 31 and the second air return port 32. The gas circulation path is as follows: after the oxygen conditioning module 30 generates gas with a relatively low oxygen concentration, the gas enters the first air inlet 13 through the second air inlet 31, and then enters the first cavity 101. After replacing the gas in the first cavity 101, the replaced gas passes through the first air return port 14 to the second air return port 32, and then returns to the oxygen conditioning module 30. Taking low-oxygen gas as an example, the oxygen concentration of the gas gradually increases during transmission, that is, the oxygen concentration of the gas flowing upward from the second air inlet 31 is lower than the oxygen concentration of the gas flowing downward from the second return air outlet 32 ​​.

[0064] Compared to natural gases in the atmosphere, the lower the oxygen concentration, the smaller the gas density, and the higher the oxygen concentration, the relatively larger the gas density. Therefore, the gas output by the oxygen conditioning module 30 located below the first oxygen conditioning chamber 10 is lighter than the gas in the first cavity 101 above, and naturally has a tendency to flow upward; after ventilation, it becomes a heavier gas with a higher oxygen concentration, and naturally has a tendency to flow downward.

[0065] Furthermore, if Figure 8 、 9 As shown in Figures 1 and 11, the refrigeration device 100 also includes a second seal 50, which is clamped between the air outlet 12 and the air inlet 221. The second seal 50 improves the sealing of the airflow connection between the two compartments, preventing airflows with different oxygen concentrations from unexpectedly flowing at the interface, and effectively ensuring the flow of air from the first oxygen conditioning compartment 10 to the second oxygen conditioning compartment 20. In addition, the second seal 50 also acts as a shock absorber, reducing vibration and noise during airflow, and improving the smoothness and accuracy of airflow transmission.

[0066] As shown in Figure 11 , the air outlet 12 is conical, and the cross section of the air outlet 12 gradually decreases in the direction close to the first cavity 101. The conical structure can guarantee a stable plug-in structure, make the air outlet 12 and the air inlet 221 more closely connected, improve the sealing performance, reduce the risk of gas leakage at the interface, and thus improve the oxygen regulating efficiency of the overall device.

[0067] As shown in Figure 11 , the second sealing member 50 includes a first skirt 51 and a second skirt 52 arranged in sequence from top to bottom, the outer diameter of the first skirt 51 is smaller than that of the second skirt 52, and the first skirt 51 and the second skirt 52 are both in abutment with the air outlet 12. The first skirt 51 and the second skirt 52 enhance the sealing performance of the device, ensuring that the second sealing member 50 of different sizes can completely fit the air outlet 12, avoiding the gas leakage phenomenon at different interfaces. Moreover, the first skirt 51 and the second skirt 52 improve the connection reliability between the first oxygen regulating chamber 10 and the second oxygen regulating chamber 20. The size design of the first skirt 51 and the second skirt 52 cooperates with the conical air outlet 12, preventing gas leakage caused by different interface sizes or installation errors, greatly enhancing the stability and safety of the structure.

[0068] As shown in Figure 11 , the air inlet 221 includes a limiting bottom wall 214, a pipe wall 215 and a limiting top wall 216 arranged in sequence from bottom to top, and the second sealing member 50 is sleeved on the outer surface of the pipe wall 215 and abuts between the limiting bottom wall 214 and the limiting top wall 216.

[0069] This structure can form a stable support point for the second sealing member 50 at the air inlet 221, ensuring that the airflow will not be affected when entering the second oxygen regulating chamber 20 due to loose interface or poor sealing. The design of the limiting bottom wall 214 and the limiting top wall 216 can effectively limit the axial displacement of the second sealing member 50, preventing the second sealing member 50 from being separated from the pipe wall 215 due to vibration or airflow impact, thereby improving the durability and stability of the overall structure. In addition, this structure can also form a layered sealing effect in the airflow channel 213, further improving the accuracy and stability of airflow transmission.

[0070] Compared with the prior art, the embodiment has the following beneficial effects:

[0071] By improving the structure and gas path design of the refrigeration equipment 100, flexible regulation of different oxygen concentrations in multiple chambers is achieved. The air guide 40 is used to guide the airflow that has adjusted the oxygen concentration through the oxygen regulating module 30 from the first oxygen regulating chamber 10 to the second oxygen regulating chamber 20. On the one hand, a natural oxygen concentration gradient is formed between the two chambers. Taking oxygen-depleted gas as an example, the oxygen concentration in the first oxygen regulating chamber 10 is lower than that in the second oxygen regulating chamber 20. Taking oxygen-rich gas as an example, the oxygen concentration in the first oxygen regulating chamber 10 is higher than that in the second oxygen regulating chamber 20. On the other hand, by controlling the speed and operation time of the air guide 40, the second oxygen regulating chamber 20 can be adjusted to any value in the range between the atmospheric oxygen concentration and the oxygen concentration of the first oxygen regulating chamber 10. The adjustment is precise, which realizes the flexible adjustment of different oxygen concentration environments at low cost within the same refrigeration equipment 100, meets the effect of meeting the needs of different food ingredients, and thereby improves the overall energy efficiency and use effect of the equipment.

[0072] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

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

Claims

1. A refrigeration device, characterized in that: include: A first oxygen regulating compartment (10), comprising a first cavity (101); an oxygen regulating module (30) connected to the first cavity (101), wherein the oxygen regulating module (30) regulates the oxygen concentration in the first cavity (101); A second oxygen regulating chamber (20), comprising a second cavity (201), wherein the second cavity (201) is in communication with the first cavity (101); An air guide (40) drives the air flow in the first cavity (101) to blow toward the second cavity (201).

2. The refrigeration equipment according to claim 1, characterized in that The second oxygen regulating chamber (20) is arranged below the first oxygen regulating chamber (10), the first oxygen regulating chamber (10) includes an air outlet (12) opening downward, and the second oxygen regulating chamber (20) includes an air inlet (221) opening upward, and the air outlet (12) is connected to the air inlet (221).

3. The refrigeration equipment according to claim 2, characterized in that The second oxygen regulating chamber (20) comprises an upper wall (21) and an air guide cover (22), the upper wall (21) is provided with a groove (211), the air guide member (40) is accommodated in the groove (211), the air guide cover (22) is engaged with the groove (211), and the groove (211) and the air guide cover (22) enclose an air flow channel (213); The air guide cover (22) includes the air inlet (221), the groove (211) includes a ventilation hole (212) facing the second cavity (201), and the air inlet (221), the air flow channel (213) and the ventilation hole (212) are connected in sequence.

4. The refrigeration equipment according to claim 3, characterized in that The air guide member (40) is configured as a centrifugal fan.

5. The refrigeration equipment according to claim 4, characterized in that: The centrifugal fan is arranged in the central area of ​​the upper wall (21); The second oxygen conditioning chamber (20) contains a second drawer (24), the second drawer (24) includes a second opening facing upwards, and the ventilation hole (212) faces the second opening.

6. The refrigeration equipment according to claim 3, characterized in that The second oxygen regulating chamber (20) further comprises a first sealing member (23), wherein the first sealing member (23) is clamped between the upper wall (21) and the air guide cover (22).

7. The refrigeration equipment according to claim 2, characterized in that The refrigeration device further comprises a second sealing member (50), wherein the second sealing member (50) is clamped between the air outlet (12) and the air inlet (221).

8. The refrigeration equipment according to claim 7, characterized in that The air outlet (12) is tapered, and the cross section of the air outlet (12) gradually decreases in a direction approaching the first cavity (101).

9. The refrigeration equipment according to claim 8, characterized in that The second sealing member (50) comprises a first skirt (51) and a second skirt (52) arranged in sequence from top to bottom, the outer diameter of the first skirt (51) is smaller than the outer diameter of the second skirt (52), and both the first skirt (51) and the second skirt (52) abut against the air outlet (12).

10. The refrigeration equipment according to claim 7, characterized in that: The air inlet (221) comprises a limiting bottom wall (214), a tube wall (215), and a limiting top wall (216) arranged in sequence from bottom to top; the second sealing member (50) is sleeved on the outer surface of the tube wall (215) and abuts between the limiting bottom wall (214) and the limiting top wall (216).

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