Fresh-keeping chamber structure, refrigerator and control method of fresh-keeping chamber structure

Abstract

The invention relates to the technical field of fresh-keeping equipment, and provides a fresh-keeping chamber structure, a refrigerator and a control method of the fresh-keeping chamber structure, the fresh-keeping chamber structure comprises a box body and a first magnet, and the box body defines a first chamber, a second chamber and a gas channel communicating the first chamber with the second chamber; the first magnet is arranged in the gas channel, the first magnet is used for generating a magnetic field so that oxygen in the first chamber can be adsorbed into the gas channel and conveyed into the second chamber, the first chamber and the second chamber are communicated through the gas channel, the magnetic field is generated through the first magnet, and the paramagnetism principle of oxygen is utilized. The oxygen in the first chamber is transferred into the gas channel and finally conveyed to the second chamber, the low-oxygen environment of the first chamber and the oxygen-enriched environment of the second chamber are achieved, fresh keeping of fruits, vegetables and meat can be conveniently achieved at the same time, and the fresh keeping effect is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of fresh-keeping equipment, and in particular, relates to a fresh-keeping compartment structure, a refrigerator, and a control method for the fresh-keeping compartment structure. Background Art

[0002] When preserving food ingredients, fruits and vegetables require a low-oxygen environment to inhibit respiration, thereby inhibiting the reduction of nutrients in fruits and vegetables. Meat requires a high-oxygen environment during the controlled atmosphere preservation process to inhibit the growth of certain anaerobic microorganisms, thereby reducing the microorganisms in the meat. However, existing preservation equipment cannot meet the preservation needs of two different ingredients, fruits and vegetables and meat, at the same time, and the preservation effect is not good. Summary of the invention

[0003] The embodiments of the present application provide a fresh-keeping compartment structure, a refrigerator, and a control method for the fresh-keeping compartment structure to solve the problem of poor fresh-keeping effect of existing fresh-keeping equipment.

[0004] In a first aspect, an embodiment of the present application provides a fresh-keeping compartment structure, comprising:

[0005] A box body, defining a first chamber, a second chamber, and a gas passage connecting the first chamber and the second chamber;

[0006] The first magnet is disposed in the gas channel, and is used to generate a magnetic field to absorb the oxygen in the first chamber into the gas channel and transport it into the second chamber.

[0007] In some embodiments of the present application, the first chamber and the second chamber are arranged side by side, and an interlayer is arranged between the first chamber and the second chamber, the interlayer forms the gas channel, an openable and closable first damper is arranged between the gas channel and the first chamber, and an openable and closable second damper is arranged between the gas channel and the second chamber.

[0008] In some embodiments of the present application, the interlayer is further provided with a third damper that can be opened and closed, and when the third damper is in an open state, the gas channel is connected to the external space.

[0009] In some embodiments of the present application, the number of the first chambers is two, the second chamber is located between the two first chambers, and the two first chambers are connected to the second chamber through the corresponding gas channels;

[0010] Alternatively, the number of the second chambers is two, the first chamber is located between two of the second chambers, and the two second chambers are connected to the first chamber through the corresponding gas channels.

[0011] In some embodiments of the present application, the first chamber is provided with a second magnet, and the second chamber is provided with a third magnet. The second magnet and the third magnet are both used to generate a magnetic field, and the magnetic field strengths of the second magnet and the third magnet are both smaller than the magnetic field strength of the first magnet.

[0012] In some embodiments of the present application, the first magnet is an electromagnet, and the second magnet and the third magnet are at least one of an electromagnetic coil or a permanent magnet.

[0013] In some embodiments of the present application, the first chamber, the interlayer and the second chamber are all provided with oxygen concentration sensors;

[0014] And / or, the temperature in the first chamber is 1-2°C, the temperature in the interlayer is 0-1°C, and the temperature in the second chamber is -2 to -3°C.

[0015] An embodiment of the second aspect of the present application provides a refrigerator, comprising the fresh-keeping compartment structure described in the above embodiment.

[0016] An embodiment of a third aspect of the present application provides a control method for a fresh-keeping compartment structure, wherein the fresh-keeping compartment structure includes a box body, wherein the box body defines a first compartment, an interlayer, and a second compartment which are sequentially arranged, wherein the interlayer forms a gas channel, wherein a first magnet is arranged in the gas channel, wherein the gas channel communicates with the first compartment and the second compartment, wherein a first damper is arranged between the gas channel and the first compartment, wherein a second damper is arranged between the gas channel and the second compartment, wherein a third damper is further arranged in the interlayer, wherein when the third damper is opened, the gas channel communicates with an external space, wherein the control method includes:

[0017] After detecting that the first chamber is opened and closed midway, opening the first damper and the first magnet;

[0018] obtaining a first oxygen concentration in the first chamber;

[0019] When the first oxygen concentration is less than a first preset threshold, closing the first damper;

[0020] Opening the third air door and obtaining a second oxygen concentration in the interlayer;

[0021] When the second oxygen concentration is greater than a second preset threshold, closing the first magnet and the third damper, and opening the second damper;

[0022] obtaining a third oxygen concentration in the second chamber;

[0023] When the difference between the third oxygen concentration and the second oxygen concentration is less than a preset difference, the second damper is closed.

[0024] In some embodiments of the present application, the method further includes:

[0025] When the first oxygen concentration is less than a third preset threshold, opening the first damper;

[0026] After monitoring that the first oxygen concentration rises to a preset concentration range, the first air door is closed.

[0027] The fresh-keeping compartment structure provided in the embodiment of the present application includes a box body and a first magnet. The box body defines a first compartment, a second compartment and a gas channel connecting the first compartment and the second compartment. The first magnet is arranged in the gas channel. The first magnet is used to generate a magnetic field to adsorb oxygen in the first compartment into the gas channel and transport it to the second compartment. The gas channel is arranged to connect the first compartment and the second compartment, and the magnetic field is generated by the first magnet. By utilizing the paramagnetic principle of oxygen, the oxygen in the first compartment is transferred to the gas channel and finally transported to the second compartment, thereby realizing a low-oxygen environment in the first compartment and an oxygen-rich environment in the second compartment, thereby facilitating the preservation of fruits, vegetables and meat at the same time and improving the preservation effect.

[0028] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0030] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0031] Figure 1 This is a schematic diagram of the structure of the fresh-keeping compartment provided in an embodiment of the present application.

[0032] Figure 2 Schematic diagram of the control method of the fresh-keeping compartment structure provided in the embodiment of the present application Figure 1 .

[0033] Figure 3 Schematic diagram of the control method of the fresh-keeping compartment structure provided in the embodiment of the present application Figure 2 .

[0034] Figure 4 Schematic diagram of the control method of the fresh-keeping compartment structure provided in the embodiment of the present application Figure 3 .

[0035] Figure 5 Schematic diagram of the control method of the fresh-keeping compartment structure provided in the embodiment of the present application Figure 4 .

[0036] Reference numerals:

[0037] 100. Box body; 110. First chamber; 120. Second chamber; 130. Interlayer; 131. Gas channel; 132. First damper; 133. Second damper; 134. Third damper; 140. Oxygen concentration sensor; 200. First magnet; 300. Second magnet; 400. Third magnet. DETAILED DESCRIPTION

[0038] The following is a further detailed description of the implementation of the present application in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.

[0039] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0040] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0041] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0043] When preserving different types of food, fruits and vegetables require a low-oxygen environment to inhibit respiration, thereby inhibiting the reduction of nutrients in fruits and vegetables, while meat requires a high-oxygen environment during the controlled atmosphere preservation process. High oxygen has the following advantages for meat preservation: First, it maintains a bright red color. In a high-oxygen environment, myoglobin combines with oxygen to form oxymyoglobin. This compound is bright red and helps to maintain the visual appeal of meat. When the oxygen partial pressure is high, myoglobin is more likely to form oxymyoglobin. Therefore, meat can maintain a bright red color for a longer time in a high-oxygen environment; second, it inhibits the growth of certain anaerobic microorganisms, thereby reducing the microorganisms in the meat.

[0044] The embodiment of the present application provides a fresh-keeping compartment structure, a refrigerator and a control method for the fresh-keeping compartment structure to solve the problem that the existing fresh-keeping compartment cannot simultaneously preserve fruits, vegetables and meat, has a single fresh-keeping effect, and has a poor fresh-keeping effect. Figure 1-5 Provide explanation.

[0045] The fresh-keeping compartment structure provided in the embodiment of the present application can be applied to fresh-keeping equipment such as refrigerators and fresh-keeping cabinets. For example, please refer to Figure 1 , Figure 1The structure diagram of the fresh-keeping compartment structure provided in the embodiment of the present application. The fresh-keeping compartment structure includes a box body 100 and a first magnet 200. The box body 100 defines a first compartment 110, a second compartment 120, and a gas channel 131 connecting the first compartment 110 and the second compartment 120; the first magnet 200 is disposed in the gas channel 131, and the first magnet 200 is used to generate a magnetic field to absorb oxygen in the first compartment 110 into the gas channel 131 and transport it to the second compartment 120.

[0046] It should be noted that paramagnetic materials refer to materials that can exhibit magnetism under the action of an external magnetic field. The unpaired electrons in these materials will be affected by parallel arrangement in the external magnetic field, thereby generating tiny magnetic moments. When the external magnetic field is removed, these magnetic moments will be randomly distributed.

[0047] As a paramagnetic gas, oxygen will undergo specific changes in a high magnetic field environment. Under the action of an external magnetic field, the unpaired electrons in the oxygen molecule will produce a magnetic moment consistent with the direction of the magnetic field, which makes the oxygen molecule exhibit paramagnetism. In a high magnetic field environment, the magnetic susceptibility of the paramagnetic gas increases, and the magnetic susceptibility of the oxygen molecule increases under the action of an external magnetic field. The relationship between magnetic susceptibility and temperature follows Curie's law. The higher the temperature, the lower the magnetic susceptibility; and paramagnetic substances will move in the direction of increased magnetic field in an external magnetic field, that is, in the magnetic field gradient, oxygen molecules will be attracted to areas with stronger magnetic fields.

[0048] It can be understood that, in this embodiment, the interior of the box 100 is divided into two independent chambers: a first chamber 110 and a second chamber 120, and the first chamber 110 and the second chamber 120 are connected through a gas channel 131, and a first magnet 200 is arranged in the gas channel 131. The first magnet 200 is used to generate a strong magnetic field. The magnetic field has a specific strength and direction, which can attract and guide the oxygen molecules in the first chamber 110 to move along the direction of the magnetic field lines.

[0049] The first magnet 200 can be made of a high-performance permanent magnet or an electromagnet. Permanent magnets have stable magnetism and a long service life, while electromagnets can control the strength and direction of the magnetic field by adjusting the current intensity. Regardless of the type of magnet used, it is necessary to ensure that the magnetic field it generates is strong and stable enough to meet the needs of oxygen transfer.

[0050] When the oxygen molecules in the first chamber 110 are located in the magnetic field generated by the first magnet 200, they are attracted by the magnetic field and move along the magnetic field lines. These oxygen molecules are transported to the second chamber 120 through the gas channel 131, thereby realizing the transfer of oxygen. In the first chamber 110, as oxygen is continuously removed, the oxygen concentration gradually decreases, forming a low-oxygen environment. This low-oxygen environment helps to slow down the respiration of fruits and vegetables, reduce the consumption of nutrients and the growth of microorganisms, thereby extending the shelf life of fruits and vegetables. In the second chamber 120, as oxygen is continuously input, the oxygen concentration gradually increases, forming an oxygen-rich environment. This oxygen-rich environment helps to inhibit the growth of anaerobic microorganisms in meat, reduce the risk of corruption and deterioration, and improve the preservation effect of meat.

[0051] It is understandable that the first chamber 110 can be used to store fruits and vegetables, and can also be used to store items with low oxygen requirements, such as cosmetics, dry goods (grains, tea, fungus, dried aquatic products, etc.), medicines, etc.; the second chamber 120 can be used to store ingredients such as meat.

[0052] In an alternative embodiment, reference Figure 1 As shown, the first chamber 110 and the second chamber 120 are arranged side by side, and an interlayer 130 is arranged between the first chamber 110 and the second chamber 120, and the interlayer 130 forms a gas channel 131, and an openable and closable first damper 132 is arranged between the gas channel 131 and the first chamber 110, and an openable and closable second damper 133 is arranged between the gas channel 131 and the second chamber 120.

[0053] It is understandable that, in this embodiment, an interlayer 130 is provided between the first chamber 110 and the second chamber 120. The interlayer 130 not only serves to separate the first chamber 110 from the second chamber 120, but also forms a gas channel 131 inside the interlayer 130, which is a key path for oxygen to transfer from the first chamber 110 to the second chamber 120.

[0054] The first magnet 200 is disposed in the interlayer 130, which can maximize the use of the space of the entire fresh-keeping compartment structure, and the first magnet 200 is placed in the interlayer 130, which can more easily control the direction and strength of the magnetic field to ensure that oxygen is transferred from the first compartment 110 to the second compartment 120 along the expected path. The interlayer 130 provides a relatively closed environment, which can protect the first magnet 200 from interference and damage from the external environment.

[0055] When the first magnet 200 is an electromagnet, placing the first magnet 200 in the interlayer 130 can effectively prevent the heat generated by the electromagnet during operation from being transferred to the first chamber 110 or the second chamber 120, thereby avoiding affecting the temperature in the chamber. The interlayer 130 also plays an important isolation role, that is, preventing the air in the first chamber 110 and the second chamber 120 from mixing. Mixing may cause the temperature, humidity and other parameters in the two chambers to change, thereby affecting the preservation effect of food.

[0056] Furthermore, a first damper 132 that can be opened and closed is provided between the gas passage 131 and the first chamber 110. The main function of the first damper 132 is to control the flow rate and time of the oxygen in the first chamber 110 entering the gas passage 131. When it is necessary to reduce the oxygen concentration in the first chamber 110, the first damper 132 can be opened to allow oxygen to enter the gas passage 131; when it is necessary to keep the oxygen concentration in the first chamber 110 stable, the first damper 132 is closed.

[0057] Similarly, a second damper 133 that can be opened and closed is also provided between the gas channel 131 and the second chamber 120. The function of the second damper 133 is to control the flow rate and time of oxygen entering the second chamber 120 from the gas channel 131. When it is necessary to increase the oxygen concentration in the second chamber 120, the second damper 133 can be opened; when it is necessary to keep the oxygen concentration in the second chamber 120 stable, the second damper 133 is closed.

[0058] In an alternative embodiment, reference Figure 1 As shown, the interlayer 130 is further provided with a third damper 134 that can be opened and closed, and when the third damper 134 is in an open state, the gas channel 131 is connected to the external space.

[0059] In this embodiment, the third damper 134 is located between the gas passage 131 of the interlayer 130 and the external space, and is an openable and closable device. When the third damper 134 is in an open state, the gas passage 131 is connected to the external space, and oxygen can be absorbed from the outside, thereby ensuring that sufficient oxygen can be supplied to the second chamber 120 to ensure an oxygen-rich environment. When it is not necessary to absorb oxygen from the outside, the third damper 134 is closed to maintain the sealing of the gas passage 131.

[0060] Exemplarily, the external space is relative to the cabinet 100 , for example, the external space may be a refrigerated space outside the cabinet 100 .

[0061] It can be understood that the number of the first damper 132 , the second damper 133 and the third damper 134 can be one or more, and this embodiment does not specifically limit this.

[0062] In an alternative embodiment, reference Figure 1 As shown, there are two first chambers 110 , the second chamber 120 is located between the two first chambers 110 , and the two first chambers 110 are connected to the second chamber 120 through corresponding gas channels 131 .

[0063] In this embodiment, the two first chambers 110 are respectively located on both sides of the second chamber 120, and both sides of the second chamber 120 are provided with independent interlayers 130 and gas channels 131 that are connected to the first chamber 110. The first chambers 110 on both sides can provide oxygen for the second chamber 120 to ensure an oxygen-rich environment in the second chamber 120.

[0064] In another optional embodiment, the number of the second chambers 120 is two, the first chamber 110 is located between the two second chambers 120, and the two second chambers 120 are connected to the first chamber 110 through corresponding gas channels 131. The middle first chamber 110 can provide oxygen for the second chambers 120 on both sides, with a compact structure and high space utilization efficiency.

[0065] In an alternative embodiment, reference Figure 1 As shown, the first chamber 110 is provided with a second magnet 300 , and the second chamber 120 is provided with a third magnet 400 . The second magnet 300 and the third magnet 400 are both used to generate a magnetic field, and the magnetic field strength of the second magnet 300 and the third magnet 400 is smaller than the magnetic field strength of the first magnet 200 .

[0066] It can be understood that in this embodiment, the magnetic field generated by the second magnet 300 can preserve the food in the first chamber 110 by magnetic field, and the magnetic field generated by the third magnet 400 can preserve the food in the second chamber 120 by magnetic field, thereby improving the preservation effect. The magnetic field strength generated by the second magnet 300 and the third magnet 400 is smaller than the magnetic field strength of the first magnet 200, thereby avoiding interference with the movement of oxygen.

[0067] Exemplarily, the magnetic field strength generated by the first magnet 200 is 9-10mT, and oxygen is attracted to the surface of the first magnet 200 through the paramagnetic properties of oxygen; the second magnet 300 and the third magnet 400 are used to adjust to different magnetic field strengths according to the type of food to achieve freshness preservation. For example, the magnetic field strength of the second magnet 300 is 1-2mT, and the magnetic field strength of the third magnet 400 is 4-5mT.

[0068] In an optional embodiment, the first magnet 200 is an electromagnet, and the second magnet 300 and the third magnet 400 are at least one of an electromagnetic coil or a permanent magnet.

[0069] Compared with other magnets, the electromagnet can generate a larger magnetic field strength to meet the needs of oxygen transfer, and is smaller in size than other magnets, so it is easy to place in the interlayer 130 without affecting the storage space of the fresh-keeping compartment structure.

[0070] The second magnet 300 and the third magnet 400 may adopt electromagnetic coils to adjust the magnetic field strength according to the type of stored food to achieve the best magnetic field preservation effect. Permanent magnets may also be used, and electromagnetic coils and permanent magnets may also be combined. This embodiment does not make specific limitations on this.

[0071] In an alternative embodiment, reference Figure 1 As shown, the first chamber 110, the interlayer 130 and the second chamber 120 are all provided with oxygen concentration sensors 140 for detecting the oxygen concentration in the corresponding chambers, so as to accurately control the opening and closing of the damper and the supply of oxygen, and ensure that the oxygen concentration in each chamber is maintained at a set level.

[0072] In an optional embodiment, the temperature in the first chamber 110 is 1-2°C, the temperature in the interlayer 130 is 0-1°C, and the temperature in the second chamber 120 is -2 to -3°C.

[0073] In this embodiment, the first space is used to store fruits and vegetables, and its temperature can be 1°C, 1.5°C or 2°C. The second compartment 120 is used to store meat, and its temperature can be -2°C, -2.5°C or -3°C. The temperature in the interlayer 130 can be 0°C, 0.5°C or 1°C. Since the magnetic susceptibility of oxygen is higher at lower temperatures, the temperature setting of the interlayer 130 can both maximize the paramagnetic effect of oxygen and the first magnet 200 and prevent the cold air in the interlayer 130 from causing the temperature in the first compartment 110 to drop below 0°C, thereby avoiding cold damage to the fruits and vegetables in the first compartment 110.

[0074] The fresh-keeping compartment structure provided by the embodiment of the present application includes a box body 100 and a first magnet 200. The box body 100 defines a first compartment 110, a second compartment 120, and a gas channel 131 connecting the first compartment 110 and the second compartment 120. The first magnet 200 is arranged in the gas channel 131, and the first magnet 200 is used to generate a magnetic field to adsorb oxygen in the first compartment 110 into the gas channel 131 and transport it to the second compartment 120. The gas channel 131 is arranged to connect the first compartment 110 and the second compartment 120, and the magnetic field is generated by the first magnet 200. By utilizing the paramagnetic principle of oxygen, the oxygen in the first compartment 110 is transferred to the gas channel 131 and finally transported to the second compartment 120, thereby realizing a low oxygen environment in the first compartment and an oxygen-rich environment in the second compartment 120, so as to facilitate the preservation of fruits, vegetables and meat at the same time and improve the preservation effect.

[0075] An embodiment of the second aspect of the present application provides a refrigerator, which includes the fresh-keeping compartment structure of the above embodiment.

[0076] It can be understood that the refrigerator of this embodiment can be a single-door refrigerator or a multi-door refrigerator, etc. If the fresh-keeping compartment structure has the beneficial effects of the above embodiments, then the refrigerator will correspondingly have the beneficial effects of the above embodiments. The specific implementation methods can refer to the above embodiments, and this embodiment does not make any specific limitations on this.

[0077] The third embodiment of the present application provides a control method for a fresh-keeping compartment structure, referring to Figure 1 As shown, the fresh-keeping compartment structure includes a box body 100, which defines a first compartment 110, an interlayer 130, and a second compartment 120 arranged in sequence, wherein the interlayer 130 forms a gas channel 131, wherein a first magnet 200 is arranged in the gas channel 131, and the gas channel 131 communicates with the first compartment 110 and the second compartment 120, wherein a first damper 132 is arranged between the gas channel 131 and the first compartment 110, and a second damper 133 is arranged between the gas channel 131 and the second compartment 120, and the interlayer 130 is further provided with a third damper 134, wherein when the third damper 134 is opened, the gas channel 131 communicates with the external space. Figure 2 As shown, the control method includes:

[0078] S201: After detecting that the first chamber 110 is opened and closed midway, the first damper 132 and the first magnet 200 are opened;

[0079] S202: Obtaining a first oxygen concentration of the first chamber 110;

[0080] S203: When the first oxygen concentration is less than a first preset threshold, closing the first damper 132;

[0081] S204: Open the third air door 134 and obtain a second oxygen concentration of the interlayer 130;

[0082] S205: When the second oxygen concentration is greater than the second preset threshold, the first magnet 200 and the third damper 134 are closed, and the second damper 133 is opened;

[0083] S206: Obtaining a third oxygen concentration of the second chamber 120;

[0084] S207: When the difference between the third oxygen concentration and the second oxygen concentration is less than a preset difference, the second damper 133 is closed.

[0085] In this embodiment, when it is detected that the user opens the first chamber 110, since the first chamber 110 is connected to the external space after opening, the oxygen concentration in the first chamber 110 is restored to a normal level. After the first chamber 110 is closed, the system opens the first damper 132 and the first magnet 200 to inhale the oxygen in the first chamber 110 into other channels. When the oxygen concentration in the first chamber 110 drops to a first preset threshold, the first damper 132 is closed. The first preset threshold can be a value between 5% and 10%. For example, the first preset threshold is 5%, 6%, 8% or 10%. At this time, the oxygen concentration in the first chamber 110 is low, which can meet the low oxygen environment requirements of fruits and vegetables.

[0086] Then the third damper 134 is opened, at this time, the gas channel 131 in the interlayer 130 is connected with the external space, and oxygen continues to be inhaled from the external space. When the second oxygen concentration in the interlayer 130 reaches the second preset threshold value (for example, 70% or 75%), it means that the oxygen concentration can be used to be transported to the second chamber 120 for meat preservation. At this time, the first magnet 200 and the third damper 134 are closed, and the second damper 133 is opened. At this time, since the oxygen concentration in the interlayer 130 is higher than the oxygen concentration in the second chamber 120, the oxygen in the interlayer 130 will automatically diffuse into the second chamber 120. When the difference between the third oxygen concentration in the second chamber 120 and the second oxygen concentration in the interlayer 130 is less than the preset threshold value (for example, when the third oxygen concentration is equal to the second oxygen concentration, it means that the oxygen has been diffused, and the second damper 133 is closed.

[0087] In an alternative embodiment, reference Figure 3 As shown, the control method also includes:

[0088] S301: when the first oxygen concentration is less than a third preset threshold, opening the first damper 132;

[0089] S302: After monitoring that the first oxygen concentration rises to a preset concentration range, closing the first damper 132 .

[0090] In this embodiment, when it is detected that the first oxygen concentration in the first air is less than the third preset threshold value, such as 5%, it indicates that the fruits and vegetables in the first space are at risk of anaerobic respiration. At this time, the first damper 132 is opened to allow the higher concentration of oxygen in the interlayer 130 to automatically diffuse into the first chamber 110. When it is detected that the first oxygen concentration rises to a preset concentration range, such as 8%-10%, the first damper 132 is closed to prevent the oxygen concentration in the first chamber 110 from being too high.

[0091] In an alternative embodiment, reference Figure 1 and Figure 4As shown, first chambers 110 are disposed on both sides of the second chamber 120, and the two first chambers 110 are both provided with corresponding interlayers 130 and dampers, and the steps of the control method of the above-mentioned fresh-keeping chamber structure can be performed separately.

[0092] Alternatively, if Figure 5 As shown, when the user opens and closes the second chamber 120 midway and does not open the first chamber 110, the system controls the third damper 134 to open, and the other dampers are closed, and the first magnet 200 is opened simultaneously with the third damper 134, and the opening and closing frequency of the first magnet 200 can be 50%-70%. After detecting that the oxygen concentration in the interlayer 130 is greater than 70%, the first magnet 200 and the third damper 134 are closed, and the second damper 133 is opened. When the second oxygen concentration is equal to the third oxygen concentration, the second damper 133 is closed.

[0093] Finally, it should be noted that the above implementation modes are only used to illustrate the present application, rather than to limit the present application. Although the present application is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application, and should be included in the protection scope of the present application.

Claims

1. A fresh-keeping compartment structure, It is characterized in that include: A box body (100) defines a first chamber (110), a second chamber (120), and a gas passage (131) connecting the first chamber (110) and the second chamber (120); The first magnet (200) is disposed in the gas channel (131), and the first magnet (200) is used to generate a magnetic field to absorb the oxygen in the first chamber (110) into the gas channel (131) and transport it to the second chamber (120).

2. The fresh-keeping compartment structure according to claim 1, It is characterized in that The first chamber (110) and the second chamber (120) are arranged side by side, and an interlayer (130) is arranged between the first chamber (110) and the second chamber (120), the interlayer (130) forms the gas channel (131), an openable and closable first damper (132) is arranged between the gas channel (131) and the first chamber (110), and an openable and closable second damper (133) is arranged between the gas channel (131) and the second chamber (120).

3. The fresh-keeping compartment structure according to claim 2, It is characterized in that The interlayer (130) is further provided with a third damper (134) that can be opened and closed, and when the third damper (134) is in an open state, the gas channel (131) is in communication with the external space.

4. The fresh-keeping compartment structure according to claim 1, It is characterized in that The number of the first chambers (110) is two, the second chamber (120) is located between the two first chambers (110), and the two first chambers (110) are both connected to the second chamber (120) through the corresponding gas channels (131); Alternatively, the number of the second chambers (120) is two, the first chamber (110) is located between the two second chambers (120), and the two second chambers (120) are both connected to the first chamber (110) through the corresponding gas channels (131).

5. The fresh-keeping compartment structure according to claim 1, It is characterized in that The first chamber (110) is provided with a second magnet (300), and the second chamber (120) is provided with a third magnet (400), the second magnet and the third magnet are both used to generate a magnetic field, and the magnetic field strength of the second magnet (300) and the third magnet (400) is smaller than the magnetic field strength of the first magnet (200).

6. The fresh-keeping compartment structure according to claim 5, It is characterized in that The first magnet (200) is an electromagnet, and the second magnet (300) and the third magnet (400) are at least one of an electromagnetic coil or a permanent magnet.

7. The fresh-keeping compartment structure according to claim 2, It is characterized in that The first chamber (110), the interlayer (130) and the second chamber (120) are all provided with an oxygen concentration sensor (140); And / or, the temperature in the first chamber (110) is 1-2°C, the temperature in the interlayer (130) is 0-1°C, and the temperature in the second chamber (120) is -2 to -3°C.

8. A refrigerator, It is characterized in that The refrigerator comprises the fresh-keeping compartment structure according to any one of claims 1 to 7.

9. A method for controlling the structure of a fresh-keeping compartment, It is characterized in that The fresh-keeping compartment structure comprises a box body (100), wherein the box body (100) defines a first compartment (110), an interlayer (130) and a second compartment (120) which are arranged in sequence, wherein the interlayer (130) forms a gas channel (131), wherein a first magnet (200) is arranged in the gas channel (131), wherein the gas channel (131) communicates with the first compartment (110) and the second compartment (120), wherein a first damper (132) is arranged between the gas channel (131) and the first compartment (110), wherein a second damper (133) is arranged between the gas channel (131) and the second compartment (120), wherein the interlayer (130) is further provided with a third damper (134), wherein when the third damper (134) is opened, the gas channel (131) communicates with an external space, and wherein the control method comprises: After detecting that the first chamber (110) is opened and closed midway, the first damper (132) and the first magnet (200) are opened; obtaining a first oxygen concentration in the first chamber (110); When the first oxygen concentration is less than a first preset threshold, closing the first damper (132); Opening the third air door (134) and obtaining a second oxygen concentration in the interlayer (130); When the second oxygen concentration is greater than a second preset threshold, closing the first magnet (200) and the third damper (134), and opening the second damper (133); obtaining a third oxygen concentration of the second chamber (120); When the difference between the third oxygen concentration and the second oxygen concentration is less than a preset difference, the second damper (133) is closed.

10. The control method of the fresh-keeping compartment structure according to claim 9, It is characterized in that The method further comprises: When the first oxygen concentration is less than a third preset threshold, opening the first damper (132); After monitoring that the first oxygen concentration rises to a preset concentration range, the first damper (132) is closed.

Images