Refrigeration equipment

Abstract

The invention discloses refrigeration equipment which comprises a chamber, an oxygen adjusting module, an oxygen adjusting gas path and a gas adjusting container. An oxygen regulating gas path is communicated with the oxygen regulating module and the chamber and supplies oxygen regulating gas flow to the chamber; the controlled atmosphere container is contained in the compartment and provided with a selective breathable film for oxygen to pass through. According to the air conditioning device, the oxygen conditioning air flow is supplied to the interior of the chamber through the oxygen conditioning air path, and oxygen in the oxygen conditioning air flow supplied to the interior of the chamber can enter the air conditioning container through the selective breathable film; the oxygen concentration in the controlled atmosphere container is greater than the oxygen concentration in the air, so that an oxygen-enriched environment is formed, or the oxygen in the controlled atmosphere container is discharged through the selective breathable film, and then the oxygen concentration in the controlled atmosphere container is less than the oxygen concentration in the air, so that an oxygen-poor environment is formed; the oxygen-enriched environment and the oxygen-deficient environment can improve the fresh-keeping effect on the food materials.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, and in particular to refrigeration equipment. Background Technology

[0002] Refrigeration equipment such as refrigerators, freezers, and wine cabinets are widely used for the preservation and storage of meat, vegetables, fruits, beverages, and food due to their refrigeration function, and are therefore widely used in stores, supermarkets, and homes.

[0003] However, with the widespread use of refrigeration equipment, the preservation effect of existing refrigeration equipment can no longer meet the ever-increasing demand for preservation. How to make refrigeration equipment have a better preservation effect is a problem that the refrigeration equipment field has been working tirelessly to solve. Summary of the Invention

[0004] The purpose of this application is to provide a refrigeration device to solve the problem of poor preservation effect of existing refrigeration devices.

[0005] To achieve one of the above-mentioned objectives, one embodiment of this application provides a refrigeration device, comprising:

[0006] Room;

[0007] Oxygen regulation module;

[0008] An oxygen regulating circuit connects the oxygen regulating module and the compartment and supplies oxygen regulating flow to the compartment;

[0009] A modified atmosphere container is housed within the chamber, the modified atmosphere container being provided with a selectively permeable membrane to allow oxygen to pass through.

[0010] As a further improvement of one embodiment of this application, the target oxygen concentration in the modified atmosphere container is greater than the oxygen concentration in the air, and the oxygen concentration in the modified oxygen flow is greater than the oxygen concentration in the air; the selectively permeable membrane is configured to allow oxygen located outside the modified atmosphere container in the compartment to enter the modified atmosphere container.

[0011] As a further improvement of one embodiment of this application, the target oxygen concentration in the modified atmosphere container is less than the oxygen concentration in the air, and the oxygen concentration in the modified oxygen flow is less than the oxygen concentration in the air; the selectively permeable membrane is configured to allow oxygen to escape from the modified atmosphere container.

[0012] As a further improvement of one embodiment of this application, the modified atmosphere container is further provided with a moisture-permeable membrane to allow moisture in the modified atmosphere container to drain out.

[0013] As a further improvement of one embodiment of this application, the refrigeration equipment includes a cylinder body that surrounds the chamber, the cylinder body is provided with an air inlet, and the oxygen conditioning circuit is connected to the air inlet.

[0014] The modified atmosphere container includes a drawer and a lid, the selectively breathable membrane is disposed on the lid, and the air inlet is located on the side of the lid away from the drawer.

[0015] As a further improvement of one embodiment of this application, the cylinder has a first opening, the drawer has a second opening, the cover closes the second opening, the second opening has a different opening direction from the first opening, the cylinder includes a first wall disposed opposite to the first opening, and the air inlet is disposed on the first wall.

[0016] As a further improvement of one embodiment of this application, the cover is provided with a guide rib on the side opposite to the drawer, and the guide rib is provided corresponding to the air inlet to guide the oxygen flow to the selectively breathable membrane.

[0017] As a further improvement of one embodiment of this application, the cylinder has a first opening, and the drawer has a door for opening or closing the first opening.

[0018] As a further improvement of one embodiment of this application, the refrigeration device includes a cylinder that surrounds the chamber. An airflow channel is provided in the cylinder, and an air inlet is provided on the inner wall of the cylinder. The air inlet is provided corresponding to the selectively permeable membrane. The oxygen regulating circuit is connected to the oxygen regulating module and the chamber through the airflow channel and the air inlet.

[0019] As a further improvement of one embodiment of this application, the refrigeration equipment further includes a refrigeration system and a cooling air supply path, wherein the cooling air supply path connects the refrigeration system and the controlled atmosphere container and supplies cold air to the interior of the controlled atmosphere container.

[0020] As a further improvement of one embodiment of this application, the refrigeration equipment includes a cylindrical body that surrounds the chamber. The controlled atmosphere container includes a drawer and a cover. The cover is provided with an air inlet. The cylindrical body is provided with a pipe connector and an air outlet. The drawer is provided with a return air outlet. One end of the pipe connector is inserted into the air inlet, and the other end extends out of the cylindrical body and is connected to the cooling air supply path. The return air outlet and the air outlet are connected.

[0021] As a further improvement of one embodiment of this application, the refrigeration equipment further includes an air guide plate disposed in the controlled atmosphere container, the air guide plate being disposed at the air inlet and being rotatable relative to the selectively breathable membrane.

[0022] As a further improvement of one embodiment of this application, the drawer has a first plate, the cylinder has a first opening, the first plate and the first opening are disposed opposite to each other, the air guide plate is rotatably connected to the first plate, and when the plane on which the air guide plate is located passes through the selectively breathable membrane, the air inlet faces the air guide plate.

[0023] As a further improvement of one embodiment of this application, the refrigeration device includes:

[0024] A humidity sensor is used to detect the humidity inside the modified atmosphere container;

[0025] The control system, connected to the humidity sensor and the air guide plate, is used for:

[0026] The angle of the air guide plate relative to the selectively breathable membrane is controlled based on the humidity (RH) detected by the humidity sensor.

[0027] Compared with the prior art, the refrigeration equipment of this application supplies regulated oxygen flow to the interior of the compartment through the regulated oxygen path, and through the selectively permeable membrane, allows the oxygen in the regulated oxygen flow supplied to the interior of the compartment to enter the modified atmosphere container, so that the oxygen concentration inside the modified atmosphere container is greater than the oxygen concentration in the air to form an oxygen-rich environment, or allows the oxygen inside the modified atmosphere container to be discharged through the selectively permeable membrane, thereby making the oxygen concentration inside the modified atmosphere container less than the oxygen concentration in the air to form an oxygen-deficient environment. Both oxygen-rich and oxygen-deficient environments can improve the preservation effect of food. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural schematic diagram of a refrigeration device according to an embodiment of this application;

[0029] Figure 2 This is a three-dimensional structural diagram of the air duct plate and cylinder according to an embodiment of this application;

[0030] Figure 3 yes Figure 2 An explosion diagram;

[0031] Figure 4 This is a structural schematic diagram of the air duct plate and the cylinder from another angle according to an embodiment of this application;

[0032] Figure 5 This is a three-dimensional structural diagram of the cylinder from another angle according to an embodiment of this application;

[0033] Figure 6 This is a schematic diagram of the cylinder and oxygen control module from another angle according to an embodiment of this application;

[0034] Figure 7 yes Figure 6Cross-sectional view along line A-A;

[0035] Figure 8 is a schematic cross-sectional view of a cylinder body of another embodiment of the present application;

[0036] Figure 9 is is Figure 6 Cross-sectional view along line B-B;

[0037] Figure 10 is a schematic three-dimensional structure view of a cylinder body of an embodiment of the present application.

[0038] Description of reference numerals:

[0039] 100, refrigeration equipment; 1, box body; 11, inner liner; 111, air duct plate; 1111, air duct; 112, air outlet; 12, outer shell; 2, compartment; 3, gas conditioning container; 31, selectively permeable membrane; 32, drawer; 321, second opening; 322, first plate; 33, cover body; 331, ventilation hole; 332, guide rib; 333, baffle plate; 334, air inlet; 34, door body; 4, oxygen adjustment module; 5, cylinder body; 51, air inlet; 52, first opening; 53, first wall; 531, pipe joint; 54, air flow channel; 55, air supply port; 56, outer wall; 57, inner wall; 6, air guide plate. Detailed implementation manners

[0040] The present application will be described in detail below with reference to the specific embodiments shown in the drawings.

[0041] In each drawing of the present application, for the convenience of illustration, the sizes of some structures or parts are enlarged relative to other structures or parts. Therefore, it is only used to illustrate the basic structure of the subject matter of the present application.

[0042] It should be understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, structures or parameters, the described objects should not be limited by these terms. These terms are only used to distinguish these described objects from each other.

[0043] Refer Figures 1 to 10 As shown, an embodiment of the present application provides a refrigeration equipment 100, the refrigeration equipment 100 includes a box body 1, the box body 1 includes an inner liner 11 and an outer shell 12 provided outside the inner liner 11. A compartment 2 is defined in the inner liner 11.

[0044] Refer to Figures 4 to 6The refrigeration equipment 100 further includes an oxygen regulating module 4 and an oxygen regulating circuit. The oxygen regulating module 4 is used to generate an oxygen regulating flow, and the oxygen regulating circuit connects the oxygen regulating module 4 and the chamber 2 and supplies the oxygen regulating flow into the chamber 2. An oxygen regulating flow refers to a flow that can be used to adjust the oxygen concentration. Specifically, the oxygen concentration in the oxygen regulating flow is greater than the oxygen concentration in the air (i.e., an oxygen-rich flow), or the oxygen concentration in the oxygen regulating flow is less than the oxygen concentration in the air (i.e., an oxygen-lean flow), thereby allowing for the adjustment of the oxygen concentration.

[0045] The refrigeration equipment 100 also includes a power supply and a controller, the controller being connected to the oxygen regulation module 4.

[0046] The oxygen regulation module 4 includes at least one anode and at least one cathode. The anode is controllably connected to the positive terminal of the power supply, and the cathode is controllably connected to the negative terminal of the power supply.

[0047] Thus, when the controller controls the oxygen regulating module 4 to run, under the control of the controller, the positive terminal of the power supply is connected to the anode and the negative terminal of the power supply is connected to the cathode, that is, the power supply supplies power to the oxygen regulating module 4; and when the controller controls the oxygen regulating module 4 to stop running, under the control of the controller, the positive terminal of the power supply is disconnected from the anode and the negative terminal of the power supply is disconnected from the cathode, that is, the power supply stops supplying power to the oxygen regulating module 4.

[0048] Furthermore, the oxygen regulation module 4 also includes an inner cavity that can at least accommodate the electrolyte.

[0049] The first side of the cathode is exposed in the inner cavity, and the second side is exposed to the external air of the oxygen regulation module 4.

[0050] When the oxygen regulating module 4 is in operation, i.e., when energized, the cathode is used to consume oxygen in the external air through an electrochemical reaction. Specifically, oxygen undergoes a reduction reaction at the cathode, with the reaction formula being O2 + 2H2O + 4e. - →4OH - In this way, an oxygen-deficient preservation atmosphere can be formed outside the oxygen regulation module 4, and when it is sent into the oxygen regulation circuit, an oxygen-deficient flow is formed.

[0051] One or both sides of the anode are exposed in the inner cavity. The anode is used to generate oxygen in the inner cavity through an electrochemical reaction to create an oxygen-rich preservation atmosphere. Specifically, OH- in the electrolyte... - An oxidation reaction can occur at the anode to produce oxygen, with the reaction formula being 4OH⁻. - →O2 + 2H2O + 4e - The generated oxygen is collected to form an oxygen-rich preservation atmosphere, which is then sent into the oxygen conditioning circuit to form an oxygen-rich flow.

[0052] See Figures 1 to 3 The refrigeration equipment 100 also includes a modified atmosphere container 3, which is housed in the chamber 2. The modified atmosphere container 3 has a storage space and is provided with a selectively permeable membrane 31 to allow oxygen to pass through.

[0053] The so-called modified atmosphere container 3 refers to a container whose gas concentration can be adjusted according to needs; in this embodiment, the gas refers to oxygen, but in other embodiments, the gas can also be set to other types of gas as needed.

[0054] Oxygen is supplied to the interior of the compartment 2 through the oxygen conditioning path, and through the selectively permeable membrane 31, the oxygen in the oxygen conditioning flow supplied to the interior of the compartment 2 can enter the modified atmosphere container 3, so that the oxygen concentration inside the modified atmosphere container 3 is greater than the oxygen concentration in the air, creating an oxygen-rich environment, or the oxygen inside the modified atmosphere container 3 is discharged through the selectively permeable membrane 31, thereby making the oxygen concentration inside the modified atmosphere container 3 less than the oxygen concentration in the air, creating an oxygen-deficient environment. Both oxygen-rich and oxygen-deficient environments can improve the preservation effect of food.

[0055] In particular, an oxygen-rich environment can inhibit the growth and reproduction of anaerobic bacteria, and the higher concentration of oxygen can combine with deoxymyoglobin on the surface of muscle to form a thicker layer of oxymyoglobin, thereby maintaining the bright red color of meat, improving the color stability of meat, and thus improving the preservation effect of meat.

[0056] An oxygen-deficient environment can inhibit the aerobic respiration of fruits and vegetables, reducing the consumption of organic matter such as sugars. It can also minimize their anaerobic respiration, preventing the production of substances such as alcohol that could affect the quality of fruits and vegetables.

[0057] In one embodiment, the target oxygen concentration inside the modified atmosphere container 3 is greater than the oxygen concentration in the air, and the oxygen concentration in the modified oxygen stream supplied to the chamber 2 by the modified oxygen path is greater than the oxygen concentration in the air. That is, the modified atmosphere container 3 provides an oxygen-rich environment with a high oxygen concentration, which is suitable for storing meat products to improve their color stability and preservation.

[0058] Thus, the selectively breathable membrane 31 is configured to allow oxygen from the outside of the modified atmosphere container 3 to enter the modified atmosphere container 3, thereby controlling the provision of an oxygen-rich environment inside the modified atmosphere container 3.

[0059] In another embodiment, the target oxygen concentration inside the modified atmosphere container 3 is lower than the oxygen concentration in the air, and the oxygen concentration in the modified oxygen stream supplied to the chamber 2 by the modified oxygen path is also lower than the oxygen concentration in the air. That is, the modified atmosphere container 3 provides an oxygen-deficient environment with a low oxygen concentration. This is suitable for storing fruits and vegetables, inhibiting their aerobic respiration, reducing the consumption of sugars and other organic matter, and also reducing their anaerobic respiration to prevent the production of substances like alcohol, thus improving the preservation effect of fruits and vegetables.

[0060] Thus, the selectively breathable membrane 31 is configured to allow oxygen to escape from the modified atmosphere container 3 in order to control the provision of an oxygen-deficient environment within the modified atmosphere container 3.

[0061] In one embodiment, the air supply of the oxygen regulating module 4 can be adjusted by controlling the operating power of the oxygen regulating module 4, and the air supply of the oxygen regulating module 4 is positively correlated with its operating power; in another embodiment, the air supply of the oxygen regulating module 4 can also be adjusted by controlling the operating current of the oxygen regulating module 4, and the air supply of the oxygen regulating module 4 is positively correlated with its operating current; in yet another embodiment, the air supply of the oxygen regulating module 4 can also be adjusted by controlling the opening angle of the gas passage valve of the oxygen regulating module 4, and the air supply of the oxygen regulating module 4 is positively correlated with the opening angle of its gas passage valve.

[0062] In one embodiment, the modified atmosphere container 3 is further provided with a moisture-permeable membrane to allow moisture in the modified atmosphere container 3 to drain out, thereby preventing condensation or frost formation inside the modified atmosphere container 3.

[0063] See Figures 2 to 3 The refrigeration equipment 100 includes a cylindrical body 5, which encloses the chamber 2.

[0064] See Figures 5 to 8 The cylinder 5 is provided with an air inlet 51, and the oxygen regulating circuit is connected to the air inlet 51, that is, the oxygen regulating circuit is connected to the chamber 2 through the air inlet 51.

[0065] See Figure 3 The modified atmosphere container 3 includes a drawer 32 and a cover 33. The selectively permeable membrane 31 is disposed on the cover 33, and the air inlet 51 is located on the side of the cover 33 opposite to the drawer 32. This allows the oxygen flow entering the chamber 2 from the air inlet 51 to reach the selectively permeable membrane 31 as quickly as possible via a shorter path, thereby regulating the oxygen concentration inside the modified atmosphere container 3, improving oxygen regulation efficiency, and saving energy.

[0066] The cylindrical body 5 has a first opening 52, the drawer 32 has a second opening 321, and the lid 33 is used to cover the second opening 321. The second opening 321 has a different opening direction than the first opening 52. Through the cooperation of the lid 33 and the drawer 32, a relatively closed space can be formed inside the modified atmosphere container 3 to prevent large fluctuations in the oxygen concentration inside.

[0067] The cylinder 5 includes a first wall 53 disposed opposite to the first opening 52, and the air inlet 51 is disposed on the first wall 53. This facilitates the layout of the oxygen regulating circuit and shortens the oxygen regulating circuit.

[0068] The drawer 32 has a door 34 for opening or closing the first opening 52. Thus, when the drawer 32 is inside the cylinder 5, the compartment 2 forms a relatively enclosed space, while a space exists between the modified atmosphere container 3 and the cylinder 5. This space forms a channel for oxygen flow, which helps improve the efficiency of oxygen passing through the selectively permeable membrane 31, thereby ensuring the oxygen concentration in the modified atmosphere container 3 and preventing any impact on the preservation effect.

[0069] By moving the door 34 relative to the cylinder 5, the drawer 32 can move relative to the cylinder 5 along the opening direction of the first opening 52 or in the opposite direction. When the drawer 32 moves to a position where at least part of it is outside the cylinder 5, it is convenient to store and retrieve items from the drawer 32.

[0070] The cover 33 is fixed to the cylinder 5. When the drawer 32 moves relative to the cylinder 5, the drawer 32 moves relative to the cover 33 at the same time. So when the drawer 32 moves to a position where at least part of it is outside the cylinder 5, at least part of the second opening 321 is exposed to the external environment, which makes it convenient to access items from the drawer 32.

[0071] The drawer 32 has a first position located inside the cylinder 5 and a second position located outside the cylinder 5. When the drawer 32 is in the first position, the cover 33 closes the drawer 32 to control the temperature and oxygen concentration inside the modified atmosphere container 3. When the drawer 32 is in the second position, the cover 33 is misaligned with the drawer 32.

[0072] In one specific embodiment, the opening directions of the first opening 52 and the second opening 321 are perpendicular to each other. This facilitates the processing of the cylinder 5 and the modified atmosphere container 3, improves feasibility, and also makes it easier for the door 34 to drive the drawer 32 to move relative to the cylinder 5 so as to store and retrieve items.

[0073] The cover 33 is provided with a vent 331, and the selectively breathable membrane 31 is provided at the corresponding vent 331 on the cover 33. That is, the vent 331 is covered by the selectively breathable membrane 31 so that oxygen can enter or exit the modified atmosphere container 3 through the selectively breathable membrane 31 and the vent 331.

[0074] The moisture-permeable membrane can be disposed on the cover 33 or the drawer 32.

[0075] See Figure 3 and Figures 7 to 8 In this embodiment, the moisture-permeable membrane is disposed on the cover 33, and the moisture-permeable membrane is a selectively breathable and moisture-permeable membrane. That is, the selectively breathable membrane 31 adopts a selectively breathable and moisture-permeable membrane that has both moisture-permeable and oxygen-permeable functions. It can not only allow oxygen to pass through, but also allow moisture to pass through. In this way, the two functions of moisture permeability and selective air permeability can be combined into one, so as to reduce the processing difficulty of the modified atmosphere container 3 and save costs.

[0076] Of course, in other embodiments, the moisture-permeable membrane may also be disposed on the cover 33 at a position different from that of the selectively breathable membrane 31. In this case, the cover 33 is also provided with a vent 331 corresponding to the moisture-permeable membrane.

[0077] See Figure 3 The cover 33 has a guide rib 332 on the side opposite to the drawer 32. The guide rib 332 is provided corresponding to the air inlet 51 to guide the oxygen flow to the selectively breathable membrane 31. In this way, the oxygen flow entering the compartment 2 from the air inlet 51 can be guided to the selectively breathable membrane 31 as quickly as possible to improve the oxygen regulation efficiency.

[0078] The cover 33 is also provided with a baffle 333, which is located on the side of the cover 33 away from the drawer 32 and surrounds the selectively breathable membrane 31 to concentrate the oxygen flow at the selectively breathable membrane 31.

[0079] See Figure 8 In another embodiment, the cylinder 5 is provided with an airflow channel 54, and the inner wall 57 of the cylinder 5 is provided with an air inlet 55, which corresponds to the selectively permeable membrane 31. The oxygen conditioning path connects the oxygen conditioning module 4 and the chamber 2 through the airflow channel 54 and the air inlet 55. In this way, the oxygen conditioning flow can be directly directed onto the selectively permeable membrane 31, thereby improving the oxygen conditioning efficiency.

[0080] Specifically, the cylinder 5 includes an outer wall 56, an inner wall 57, and a heat insulation layer. The heat insulation layer is located between the inner wall 57 and the outer wall 56. The airflow channel 54 is disposed in the heat insulation layer. The airflow channel 54 is connected to the air outlet 55 disposed on the inner wall 57 and is connected to the compartment 2 through the air outlet 55.

[0081] The refrigeration equipment 100 also includes a refrigeration system and a cooling air supply path. The cooling air supply path connects the refrigeration system and the modified atmosphere container 3, and supplies a cooling airflow, i.e., cold air, into the modified atmosphere container 3. This can cool down the interior of the modified atmosphere container 3 so that the interior temperature reaches the preset temperature, and further improve the preservation effect of the food stored therein through low temperature.

[0082] The refrigeration system includes a compressor, a condenser, a throttling device, and an evaporator connected in sequence.

[0083] The inner liner 11 is provided with an air duct plate 111, which is disposed opposite to the door 34. The air duct plate 111 defines an air duct 1111, and a fan is provided in the air duct 1111. The cooling air supply path passes through the air duct 1111, thereby sending the cooling capacity generated by the refrigeration system into the compartment 2 through the cooling air supply path.

[0084] The air duct plate 111 is provided with an air outlet 531, and the air duct 1111 is connected to the air outlet 531.

[0085] In one embodiment, the air volume of the cooling air supply system is adjusted by controlling the speed of the compressor, and the air volume of the cooling air supply system is positively correlated with the speed of the compressor; in another embodiment, the air volume of the cooling air supply system is adjusted by controlling the opening angle of the damper, and the air volume of the cooling air supply system is positively correlated with the opening angle of the damper.

[0086] Combination Figure 6 , Figure 9 and Figure 10 The cover 33 is provided with an air inlet 334, the cylinder 5 is provided with a pipe connector 531 and an air outlet, and the drawer 32 is provided with a return air outlet. One end of the pipe connector 531 is inserted into the air inlet 334, and the other end extends out of the cylinder 5 and is connected to the cooling air supply path. The return air outlet and the air outlet are connected. In this way, the cooling air supply path is connected to the interior of the controlled atmosphere container 3 through the air inlet 334, thereby forming a passage for cold air within the cylinder 5.

[0087] The air inlet 334 and the selectively breathable membrane 31 are spaced apart to avoid interference between the cold air and the oxygen-controlled airflow when they enter the modified atmosphere container 3.

[0088] The drawer 32 includes a first plate 322 facing and opposite to the first wall 53, and the first plate 322 is also opposite to the first opening 52.

[0089] When the opening directions of the first opening 52 and the second opening 321 are perpendicular to each other, the first plate 322 and the cover plate are perpendicular to each other.

[0090] The oxygen regulating circuit is located between the air duct plate 111 and the cylinder 5, so that the space in the inner liner 11 can be utilized, avoiding a significant impact on the volume of the refrigeration equipment 100.

[0091] See Figure 9 The refrigeration equipment 100 also includes an air guide plate 6 disposed within the controlled atmosphere container 3. The air guide plate 6 is located at the air inlet 334 and can rotate relative to the selectively permeable membrane 31. In this way, the path of the cold air after entering the controlled atmosphere container 3 can be adjusted by rotating the air guide plate 6, thereby controlling whether the path of the cold air and the path of the controlled atmosphere flow affect each other as needed.

[0092] The refrigeration equipment 100 also includes a humidity sensor, which is used to detect the humidity inside the controlled atmosphere container 3.

[0093] Specifically, the humidity sensor can be installed inside the modified atmosphere container 3 to improve the accuracy of its humidity measurement.

[0094] The refrigeration equipment 100 also includes a control system, which is connected to the humidity sensor and the air guide plate 6, and is used for:

[0095] The angle of the air guide plate 6 relative to the selectively breathable and moisture-permeable membrane is controlled based on the humidity RH detected by the humidity sensor.

[0096] Thus, the angle of the air guide plate 6 relative to the selectively breathable and moisture-permeable membrane can be controlled according to the humidity RH inside the modified atmosphere container 3, so as to control whether the cold air supplied from the air inlet 334 to the modified atmosphere container 3 blows directly onto the selectively breathable and moisture-permeable membrane, thereby achieving the adjustment of the humidity inside the modified atmosphere container 3, so as to control the humidity inside the modified atmosphere container 3 within a preset range.

[0097] The air guide plate 6 is rotatably connected to the first plate 322, that is, the air guide plate 6 is connected to the first plate 322 and can rotate relative to the first plate 322. Since the first plate 322 is perpendicular to the cover 33, and the selectively breathable and moisture-permeable membrane is disposed on the cover 33, when the air guide plate 6 rotates relative to the first plate 322, the air guide plate 6 also rotates relative to the selectively breathable and moisture-permeable membrane.

[0098] When the plane containing the air guide plate 6 passes through the selectively breathable membrane 31, the air inlet 334 faces the air guide plate 6. This facilitates the adjustment of the cold air path by the air guide plate 6, so that when the air guide plate 6 rotates relative to the first plate 322, the cold air supplied into the controlled atmosphere container 3 from the air inlet 334 can be blown toward the selectively breathable and moisture-permeable membrane.

[0099] The control system is further configured to: when the humidity RH detected by the humidity sensor is greater than a first preset humidity RH1, control the air guide plate 6 to rotate so that the plane of the air guide plate 6 passes through the selectively breathable and moisture-permeable membrane. When the humidity RH detected by the humidity sensor exceeds the first preset humidity RH1, the humidity RH inside the controlled atmosphere container 3 is too high, which will cause condensation or frost to form inside the controlled atmosphere container 3. At this time, by controlling the air guide plate 6 to rotate so that the plane of the air guide plate 6 passes through the selectively breathable and moisture-permeable membrane, the cold air supplied into the controlled atmosphere container 3 from the air inlet 334 can be directly blown onto the selectively breathable and moisture-permeable membrane, thereby removing the condensation and frost generated inside the controlled atmosphere container 3 and reducing the humidity inside the controlled atmosphere container 3.

[0100] The control system is further configured to: when the humidity RH detected by the humidity sensor is ≤ a first preset humidity RH1, control the air guide plate 6 to rotate so that the plane of the air guide plate 6 does not pass through the selectively breathable and moisture-permeable membrane. Thus, when the humidity RH detected by the humidity sensor does not exceed the first preset humidity RH1, the humidity RH inside the controlled atmosphere container 3 is within a suitable range. At this time, by controlling the air guide plate 6 to rotate so that the plane of the air guide plate 6 does not pass through the selectively breathable and moisture-permeable membrane, the cold air supplied into the controlled atmosphere container 3 from the air inlet 334 can be prevented from blowing directly onto the selectively breathable and moisture-permeable membrane, thereby preventing the cold air from interfering with the oxygen passing through the selectively breathable and moisture-permeable membrane and thus affecting the oxygen concentration inside the controlled atmosphere container 3.

[0101] The oxygen regulating circuit connects the oxygen regulating module 4 and the chamber 2, and supplies oxygen regulating flow to the chamber 2, thereby allowing oxygen to pass through the selectively permeable and moisture-permeable membrane, thereby regulating the oxygen concentration inside the modified atmosphere container 3.

[0102] The control system is further configured to: when the humidity RH detected by the humidity sensor is ≤ the first preset humidity RH1, control the oxygen supply module to supply air to the compartment 2 at a volume of Vq1, and control the air deflector 6 to rotate to be parallel to the selectively breathable and moisture-permeable membrane. In this way, when the humidity RH in the airtight container 3 is within a suitable range, by controlling the air deflector 6 to rotate to be parallel to the selectively breathable and moisture-permeable membrane, it is possible to prevent the cold air supplied into the interior of the airtight container 3 from the air inlet 334 from blowing onto the selectively breathable and moisture-permeable membrane, thereby preventing the cold quantity from dissipating from the selectively breathable and moisture-permeable membrane, and also improving the uniformity of the distribution of cold air and oxygen in the airtight container 3.

[0103] The control system is further configured to: when the humidity RH detected by the humidity sensor is ≤ the first preset humidity RH1, control the oxygen supply module to supply air to the compartment 2 at a volume of Vq2, and control the air deflector 6 to rotate such that the intersection line of the plane where the air deflector 6 is located and the cover plate is on the side of the selectively breathable and moisture-permeable membrane away from the first wall 53; where Vq2 > Vq1. In this way, it is possible to avoid excessive humidity while ensuring the oxygen concentration inside the airtight container 3.

[0104] The control system is further configured to:

[0105] When RH > the first preset humidity RH1, control the air supply volume of the refrigeration system for blowing air into the interior of the airtight container 3 to be Vf1, and control the oxygen supply module to supply air to the compartment 2 at a volume of Vq3;

[0106] When the second preset humidity RH2 < RH ≤ RH1, control the air supply volume of the refrigeration system for blowing air into the interior of the airtight container 3 to be Vf2, and control the oxygen supply module to supply air to the compartment 2 at a volume of Vq4;

[0107] When RH ≤ RH2, control the air supply volume of the refrigeration system for blowing air into the interior of the airtight container 3 to be Vf3, and control the oxygen supply module to supply air to the compartment 2 at a volume of Vq4;

[0108] Wherein, Vf1 > Vf2 > Vf3, Vq3 > Vq4.

[0109] In this way, it is possible to adjust the air supply volume of the oxygen regulating air flow supplied to the compartment 2 and the cold air supply volume supplied to the interior of the airtight container 3 according to the humidity in the airtight container 3, thereby enabling the adjustment of the humidity, temperature, and oxygen concentration in the airtight container 3 to reach an ideal range, and also avoiding condensation or frosting in the airtight container 3.

[0110] In summary, the refrigeration equipment 100 of this application supplies regulated oxygen flow to the interior of the compartment 2 through the regulated oxygen path. Through the selectively permeable membrane 31, oxygen from the regulated oxygen flow supplied to the interior of the compartment 2 can enter the modified atmosphere container 3, creating an oxygen-rich environment where the oxygen concentration inside the modified atmosphere container 3 is greater than that in the air, or allowing oxygen inside the modified atmosphere container 3 to be discharged through the selectively permeable membrane 31, thus creating an oxygen-deficient environment where the oxygen concentration inside the modified atmosphere container 3 is less than that in the air. Both oxygen-rich and oxygen-deficient environments can improve the preservation effect on food. Furthermore, the angle of the air guide plate 6 relative to the selectively permeable membrane can be controlled according to the humidity (RH) inside the modified atmosphere container 3, thereby controlling whether the cold air supplied from the air inlet 334 directly blows onto the selectively permeable membrane, thus regulating the humidity inside the modified atmosphere container 3 and keeping it within a preset range.

[0111] The structure, features and effects of this application have been described in detail above with reference to the embodiments shown in the accompanying drawings. The above description is only a preferred embodiment of this application, but this application does not limit the scope of implementation to what is shown in the drawings. Any changes made in accordance with the concept of this application, or modifications to equivalent embodiments with equivalent changes, that do not exceed the spirit covered by the specification and drawings, should be within the protection scope of this application.

Claims

1. A refrigeration device (100), characterized in that, include: Room (2); Oxygen regulation module (4); An oxygen regulating circuit connects the oxygen regulating module (4) and the chamber (2) and supplies oxygen regulating flow to the chamber (2); A modified atmosphere container (3) is housed within the chamber (2), and the modified atmosphere container (3) is provided with a selectively permeable membrane (31) for oxygen to pass through.

2. The refrigeration equipment (100) according to claim 1, characterized in that, The target oxygen concentration in the modified atmosphere container (3) is greater than the oxygen concentration in the air, and the oxygen concentration in the modified oxygen flow is greater than the oxygen concentration in the air; the selectively breathable membrane (31) is configured to allow oxygen located outside the modified atmosphere container (3) in the compartment (2) to enter the modified atmosphere container (3).

3. The refrigeration equipment (100) according to claim 1, characterized in that, The target oxygen concentration in the modified atmosphere container (3) is less than the oxygen concentration in the air, and the oxygen concentration in the modified oxygen flow is less than the oxygen concentration in the air; the selectively permeable membrane (31) is configured to allow oxygen in the modified atmosphere container (3) to be discharged.

4. The refrigeration equipment (100) according to claim 1, characterized in that, The modified atmosphere container (3) is also provided with a moisture-permeable membrane to allow moisture in the modified atmosphere container (3) to drain out.

5. The refrigeration equipment (100) according to claim 1, characterized in that, Includes a cylinder (5), which surrounds the chamber (2), and the cylinder (5) is provided with an air inlet (51), and the oxygen conditioning circuit is connected to the air inlet (51); The modified atmosphere container (3) includes a drawer (32) and a cover (33), the selectively breathable membrane (31) is disposed on the cover (33), and the air inlet (51) is located on the side of the cover (33) away from the drawer (32).

6. The refrigeration equipment (100) according to claim 5, characterized in that, The cylindrical body (5) has a first opening (52), the drawer (32) has a second opening (321), the cover (33) covers the second opening (321), the second opening (321) has a different opening direction from the first opening (52), the cylindrical body (5) includes a first wall (53) disposed opposite to the first opening (52), and the air inlet (51) is disposed on the first wall (53).

7. The refrigeration equipment (100) according to claim 6, characterized in that, The cover (33) is provided with a guide rib (332) on the side opposite to the drawer (32). The guide rib (332) is provided corresponding to the air inlet (51) to guide the oxygen flow to the selectively breathable membrane (31).

8. The refrigeration equipment (100) according to claim 5, characterized in that, The cylinder (5) has a first opening (52), and the drawer (32) has a door (34) for opening or closing the first opening (52).

9. The refrigeration equipment (100) according to claim 1, characterized in that, The system includes a cylindrical body (5) that surrounds the chamber (2). An airflow channel (54) is provided in the cylindrical body (5). An air inlet (55) is provided on the inner wall (57) of the cylindrical body (5). The air inlet (55) is provided corresponding to the selectively permeable membrane (31). The oxygen regulation path connects the oxygen regulation module (4) and the chamber (2) through the airflow channel (54) and the air inlet (55).

10. The refrigeration equipment (100) according to claim 1, characterized in that, The refrigeration equipment (100) also includes a refrigeration system and a cooling air supply path, wherein the cooling air supply path connects the refrigeration system and the controlled atmosphere container (3) and supplies cold air to the interior of the controlled atmosphere container (3).

11. The refrigeration equipment (100) according to claim 10, characterized in that, The container includes a cylindrical body (5) that encloses the chamber (2). The controlled atmosphere container (3) includes a drawer (32) and a cover (33). The cover (33) is provided with an air inlet (334). The cylindrical body (5) is provided with a pipe connector (531) and an air outlet. The drawer (32) is provided with a return air outlet. One end of the pipe connector (531) is inserted into the air inlet (334), and the other end extends out of the cylindrical body (5) and is connected to the cooling air supply circuit. The return air outlet and the air outlet are connected.

12. The refrigeration equipment (100) according to claim 11, characterized in that, It also includes an air guide plate (6) disposed in the modified atmosphere container (3), the air guide plate (6) being disposed at the air inlet (334) and being rotatable relative to the selectively breathable membrane (31).

13. The refrigeration equipment (100) according to claim 12, characterized in that, The drawer (32) has a first plate (322), the cylinder (5) has a first opening (52), the first plate (322) and the first opening (52) are arranged opposite to each other, the air guide plate (6) is rotatably connected to the first plate (322), and when the plane of the air guide plate (6) passes through the selective breathable membrane (31), the air inlet (334) faces the air guide plate (6).

14. The refrigeration equipment (100) according to claim 12, characterized in that, include: A humidity sensor is used to detect the humidity inside the modified atmosphere container (3); The control system, connected to the humidity sensor and the air guide plate (6), is used for: The angle of the air guide plate (6) relative to the selectively breathable membrane (31) is controlled according to the humidity RH detected by the humidity sensor.

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