A sealed storage device and refrigerator

Abstract

The application provides a sealed storage device for a refrigerator, which comprises a sealed box. The sealed box is composed of a box body, a top plate and a sealed cover. The sealed cover and the top plate define an exhaust cavity, which is provided with a dehumidification air door and an oxygen control air door. The humid air in the sealed box is discharged to the outside of the sealed box through the dehumidification air door by opening and closing the oxygen control air door. Part of the air in the sealed box is discharged to the outside of the sealed box through the dehumidification air door by controlling the opening and closing of the oxygen control air door. The contents of the humid gas and oxygen in the sealed box are reduced by the dehumidification air door and the oxygen control air door, so that the stored goods in the sealed box can be preserved for a long time.

Description

Technical Field

[0001] The present invention relates to the field of refrigerators, and in particular to a sealed storage device and a refrigerator. Background Art

[0002] In today's rapidly developing society, refrigerators have become one of the essential appliances for every family's home life. However, with the development of technology and the improvement of people's living standards, refrigerators have also acquired more and more humane functions. However, existing refrigerators can only keep food fresh at low temperatures, effectively inhibiting the reproduction of bacteria by lowering the temperature, thereby effectively keeping food fresh. In order to better store food on the market, controlling the humidity in the refrigerator and using dedicated vacuum storage rooms are relatively common methods. However, the cost of using dedicated vacuum storage rooms is relatively high, and using vacuum bags for preservation requires users to vacuum every time they store food, which is troublesome to operate and is not popular with consumers. In addition, if foods with relatively high moisture content are often placed in the refrigerator, it is easy to cause excessive humidity in the refrigerator, resulting in condensation on the inner wall, vegetable rot, and other problems that affect the user experience. It is difficult for existing technology to solve these two problems at the same time. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide a storage device that overcomes the above problems or at least partially solves the above problems.

[0004] An object of the present invention is to regulate the humidity and oxygen concentration in a sealed storage device of a refrigerator to ensure that the stored items remain fresh for a long time.

[0005] Another object of the present invention is to provide a gas separator with small size, high strength and obvious deoxygenation effect, so as to provide sufficient nitrogen-rich gas to a sealed storage device.

[0006] In particular, the present invention provides a sealed storage device for a refrigerator, which is installed in the storage space of the refrigerator, and the sealed storage device includes:

[0007] The sealed box is arranged in the sealed storage device, and includes:

[0008] Box body; used for storing items;

[0009] Top plate; configured at the top of the box body, with ventilation holes provided on the top plate;

[0010] The sealing cover is buckled on the top plate and defines an exhaust cavity with the top plate, and the exhaust cavity is provided with;

[0011] a dehumidification damper configured to be openable and closable, so that the moist air in the sealed box flows out through the vent and is discharged to the outside of the sealed box through the dehumidification damper;

[0012] The oxygen control damper is configured to be openable and closable, so that part of the air in the sealed box flows out through the vent and is discharged to the outside of the sealed box through the oxygen control damper.

[0013] In particular, the sealed box also includes: a gas separator, which is arranged at the rear end of the oxygen control damper, and the gas separator is provided with a one-way breathable membrane. The gas separator is configured to absorb part of the air extracted by the oxygen control damper, and separate the oxygen in part of the air from the nitrogen in part of the air under the action of the one-way breathable membrane, so that the oxygen-rich gas in part of the air is discharged from the sealed box, and the remaining nitrogen-rich gas is filled into the sealed box.

[0014] In particular, the sealed storage device further includes: an exhaust pipe and a vacuum pump, the vacuum pump being connected to the gas separator via the exhaust pipe and configured to cause oxygen-rich gas in part of the air in the gas separator to be discharged out of the sealed box.

[0015] In particular, the dehumidification damper and the oxygen control damper are located at the same end of the ventilation opening, and are adjacent to and arranged side by side.

[0016] In particular, the exhaust cavity is further provided with: a wind shield plate configured to wrap the vent so that the air discharged from the vent can only be discharged to the outside of the sealed box through the dehumidification damper or the oxygen control damper.

[0017] In particular, the sealed box further comprises: a fan, which is arranged in the box body and is used to accelerate air flow.

[0018] In particular, the sealed box also includes:

[0019] a humidity sensor configured to monitor humidity within the sealed box;

[0020] The humidity in the sealed box is monitored by a humidity sensor to obtain the current humidity of the sealed box; the operating mode of the sealed storage device is adjusted according to the current humidity and the preset humidity, and the operating mode is the dehumidification mode.

[0021] In particular, when the current humidity sensed by the humidity sensor exceeds the preset humidity, the operating mode is dehumidification mode, the dehumidification damper is opened, the fan is operated, the air circulation speed in the sealed box is accelerated, and the humid air is discharged out of the sealed box in time, thereby reducing the air humidity in the sealed box.

[0022] In particular, the sealed box also includes:

[0023] an oxygen concentration sensor configured to monitor the oxygen concentration within the sealed box;

[0024] When the current humidity sensed by the humidity sensor does not exceed the preset humidity, the dehumidification mode is turned off; when the oxygen concentration sensor detects that the oxygen concentration in the sealed box exceeds the preset oxygen concentration, the operation mode is switched to the oxygen control mode. When the operation mode is the oxygen control mode, the oxygen control damper is opened and the vacuum pump is started at the same time. The vacuum pump extracts oxygen-rich gas in the sealed box to control the oxygen content in the sealed box, thereby achieving the effect of controlling the oxygen content in the sealed box.

[0025] On the other hand, the present invention provides a refrigerator, comprising a box body defining a storage compartment therein and a sealed storage device for a refrigerator as described in any one of the above items.

[0026] The present invention provides a sealed storage device for a refrigerator, the sealed storage device comprising a sealed box. A top plate and a sealed cover are provided in the sealed box. The top plate and the sealed cover together define an exhaust cavity, and two dampers are provided in the exhaust cavity, namely a dehumidification damper and an oxygen control damper. By opening and closing the oxygen control damper, humid air in the sealed box flows out through the vents and is discharged to the outside of the sealed box through the dehumidification damper. By controlling the opening and closing of the oxygen control damper, part of the air in the sealed box flows out through the vents and is discharged to the outside of the sealed box through the oxygen control damper. The dehumidification damper and the oxygen control damper reduce the content of humid gas and oxygen in the sealed box, thereby ensuring that the stored items are kept fresh for a long time.

[0027] Furthermore, the sealed storage device of the present invention includes a gas separator provided with a one-way breathable membrane. The gas separator is configured to absorb a portion of the air extracted by the oxygen control damper and separate the oxygen in the portion of the air from the nitrogen in the portion of the air under the action of the one-way breathable membrane. The oxygen-rich gas in the portion of the air is discharged from the sealed box, and the remaining nitrogen-rich gas is then filled into the sealed box. By continuously filling the sealed box with nitrogen-rich gas, the sealed box has a better preservation effect.

[0028] Furthermore, since the dehumidification damper and the oxygen control damper of the sealed storage device of the present invention are located at the same end of the vent, they are adjacent to each other and arranged side by side, which can fully utilize the space in the exhaust cavity and make the structure in the exhaust cavity more compact.

[0029] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0031] Figure 1 is a structural schematic diagram of a sealing box according to an embodiment of the present invention;

[0032] Figure 2 yes Figure 1 Schematic exploded diagram of;

[0033] Figure 3 is a structural schematic diagram of a sealed storage device according to an embodiment of the present invention;

[0034] Figure 4 is a schematic structural diagram of a sealed storage device according to an embodiment of the present invention, showing the internal structure of the exhaust cavity;

[0035] Figure 5 2 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention. DETAILED DESCRIPTION

[0036] Refer to the following Figures 1 to 5 The following describes a sealed storage device 10 and refrigerator according to an embodiment of the present invention. The terms "front," "rear," "upper," "lower," "top," "bottom," "inner," "outer," and "lateral" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the embodiments of the present invention and to simplify the description. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0037] In the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or more of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0038] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise expressly limited. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0039] In the description of the present embodiments, references to "one embodiment", "an embodiment", "some embodiments", "example", "specific example" or "some examples" means that a particular feature, structure, material or characteristic is included in at least one embodiment or example of the present application. The appearances of the phrases "in one embodiment" or "in some embodiments" in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0040] Figure 1 is a structural schematic diagram of the sealed box 110 according to an embodiment of the present application; Figure 2 is Figure 1 a schematic exploded view.

[0041] In one embodiment of the present application, specifically as shown in Figures 1 and 2 the present application provides a sealed storage device 10 for a refrigerator, which comprises a sealed box 110. The sealed box 110 is provided with a top plate 114 and a sealed cover 116. The top plate 114 and the sealed cover 116 jointly define an exhaust cavity 118, which is provided with two dampers, a dehumidification damper 1182 and an oxygen control damper 1184. The humid air in the sealed box 110 is discharged through the ventilation opening 1142 by opening and closing the oxygen control damper 1184, and is discharged to the outside of the sealed box 110 through the dehumidification damper 1182. Part of the air in the sealed box 110 is discharged through the ventilation opening 1142 by controlling the opening and closing of the oxygen control damper 1184, and is discharged to the outside of the sealed box 110 through the oxygen control damper 1184. In this embodiment, the contents of the humid gas and oxygen in the sealed box 110 are reduced by the dehumidification damper 1182 and the oxygen control damper 1184, thereby ensuring long-term preservation of the stored items.

[0042] Further, in one embodiment of the present application, the opening and closing mode of the sealed box 110 can be various, such as forward opening or flip opening. As long as it does not affect the user's taking of the items and ensures the normal operation of the sealed storage device 10.

[0043] Figure 3 is a structural schematic diagram of the sealed storage device 10 according to an embodiment of the present application; Figure 4 is a structural schematic diagram of the sealed storage device 10 according to an embodiment of the present application, which shows the internal structure of the exhaust cavity 118.

[0044] In one embodiment of the present application, specifically as shown in Figures 3 and 4As shown, the sealed storage device 10 of the present invention includes a gas separator 119, which is provided with a one-way breathable membrane 1192. The gas separator 119 is configured to absorb part of the air extracted by the oxygen control damper 1184, and separate the oxygen in the part of the air from the nitrogen in the part of the air under the action of the one-way breathable membrane 1192, so that the oxygen-rich gas in the part of the air is discharged from the sealed box 110, and the remaining nitrogen-rich gas is filled into the sealed box 110. By continuously filling the sealed box 110 with nitrogen-rich gas, the freshness preservation effect of the sealed box 110 is improved.

[0045] In this embodiment, gas separator 119 is arranged on the oxygen control damper 1184 rear end in the exhaust chamber 118 of sealed box 110, and wherein gas separator 119 is equipped with one-way breathable membrane 1192.In some embodiments of the present invention, one-way membrane can also be oxygen-enriched membrane.Gas separator 119 can be configured to suck part of the air in the gas separator 119 external environment into it (by the vent in the exhaust chamber 118), and make the oxygen in this part of air be separated more under the effect of one-way breathable membrane 1192 relative to nitrogen therein, to form oxygen-enriched gas, then make this part of oxygen-enriched gas removed in this part of air that enters gas separator 119, and remaining gas is filled into sealed box 110, ensure that the gas in sealed box 110 is oxygen-deficient gas to be beneficial to food fresh-keeping.

[0046] Furthermore, when the gas pressure in the gas separator 119 is lower than the pressure in the exhaust chamber 118, the air in the exhaust chamber 118 will be sucked into the gas separator 119 due to the pressure difference. Specifically, the one-way breathable membrane 1192 can be configured so that after a portion of the ambient air entering the gas separator 119 contacts one side of the one-way breathable membrane 1192, the oxygen in this portion of the ambient air will pass through the one-way breathable membrane 1192 more than the nitrogen therein and gather on the other side of the modified atmosphere membrane to form oxygen-rich gas. This oxygen-rich gas can then be extracted by an exhaust device connected to the gas separation device to reduce the gas pressure in the gas separator 119, thereby enabling the gas in the sealed box 110 to continue to enter the gas separator 119, and the oxygen-rich gas therein is separated and then extracted by the exhaust device. Furthermore, the remaining gas in the air that fails to pass through the one-way breathable membrane 1192 can be supplied to the internal space of the sealed box 110 by the gas separation device, so that a nitrogen-rich and oxygen-poor gas is formed in the sealed box 110 to facilitate food preservation. By increasing the nitrogen content in the sealed box 110, the intensity of aerobic respiration of fruits and vegetables is reduced, while ensuring basic respiration, preventing the stored food from undergoing anaerobic respiration, thereby achieving the purpose of long-term preservation.

[0047] It is common knowledge that the composition of normal air includes about 78% nitrogen, about 21% oxygen, about 0.939% rare gases (helium, neon, argon, krypton, xenon, radon), 0.031% carbon dioxide, and 0.03% other gases and impurities (for example, ozone, nitric oxide, nitrogen dioxide, water vapor, etc.). In the field of gas preservation, it is common to fill a closed space with nitrogen-rich gas to reduce the oxygen content to obtain nitrogen-rich and oxygen-poor preservation gas. Here, those skilled in the art are aware that nitrogen-rich gas refers to a gas whose nitrogen content exceeds the nitrogen content in the above-mentioned normal air. In some embodiments of the present invention, the content of nitrogen-rich gas can be 95% to 99%, or even higher; and nitrogen-rich and oxygen-poor preservation gas refers to a gas whose nitrogen content exceeds the nitrogen content in the above-mentioned normal air and whose oxygen content is lower than the oxygen content in the above-mentioned normal air. The preservation time in such a gas will be greatly extended.

[0048] In some embodiments of the present invention, a plurality of micropores may be provided on the sealing cover 116 on the top plate 114 of the sealed box 110 for discharging the moist air discharged by the dehumidification damper 1182 to the outside of the sealed box 110. In this embodiment, the micropores arranged on the sealing cover 116 are different from the vents 1142 arranged on the top plate 114. The micropores arranged on the sealing cover 116 can be called air pressure balance holes, and the diameter of each micropore is relatively small. The provision of a plurality of micropores can prevent the pressure in the sealed box 110 from being too low, and the moist air in the sealed box 110 can be discharged smoothly. The provision of a plurality of micropores will not cause a large amount of gas in the drawer space to flow out, and even if it flows, it is very small or even negligible, and will not affect the preservation of the food inside. The user does not need to take too much effort when opening the sealed box 110, and compared to the existing vacuum storage chamber, it will be more labor-saving.

[0049] In one embodiment of the present invention, the sealed storage device 10 further includes: an exhaust pipe 120 and a vacuum pump, the vacuum pump being connected to the gas separator 119 via the exhaust pipe, and being configured to cause the oxygen-rich gas in part of the air in the gas separator 119 to be discharged from the sealed box 110.

[0050] In this embodiment, a vacuum pump is typically located within the refrigerator's compressor compartment. The vacuum pump's inlet is connected to the rear end of the gas separator 119 via an exhaust pipe 120. The vacuum pump is configured to extract gas from the gas separator 119, allowing the air within the sealed box 110 to flow toward the gas separator 119. The one-way permeable membrane allows some or all of the oxygen-rich gas within the sealed box 110 to enter the gas separator 119 and then exit the sealed box 110 via the exhaust pipe 120 and the vacuum pump. This creates a nitrogen-rich, oxygen-depleted gas within the sealed box 110, which helps preserve the freshness of the stored food. The oxygen-rich gas is typically oxygen. In this embodiment, the one-way membrane selectively allows the oxygen-rich gas within the sealed box 110 to pass through, while retaining the remaining nitrogen within the sealed box 110. This increases the nitrogen concentration within the sealed box 110, extending the shelf life of the food.

[0051] In one embodiment of the present invention, the dehumidification damper 1182 and the oxygen control damper 1184 of the sealed storage device 10 are located at the same end of the vent 1142, adjacent to each other and arranged side by side. This allows full utilization of the space within the exhaust cavity 118, making the structure within the exhaust cavity 118 more compact and improving the space utilization of the enclosed space.

[0052] On the basis of this embodiment, the side ends of the humidification damper and the dehumidification damper 1182 are connected together, and the two can be linked together. The opening and closing of the humidification damper and the dehumidification damper 1182 can be driven by one motor, which saves space.

[0053] In one embodiment of the present invention, the exhaust chamber 118 is further provided with: a wind shield 1186, which is configured to wrap the vent 1142 so that the air exhausted from the vent 1142 can only be exhausted to the outside of the sealed box 110 through the dehumidification damper 1182 or the oxygen control damper 1184.

[0054] In this embodiment, to ensure a relatively sealed environment within the exhaust chamber 118, windshields 1186 are provided around the vents 1142. Airflow can only enter through the vents 1142 and can only be discharged to the outside of the sealed box 110 through the dehumidification damper 1182 or the oxygen control damper 1184. The provision of the dedicated windshields 1186 improves the sealing effect within the sealed box 110 and prevents the gas within the sealed box 110 from being exposed.

[0055] In one embodiment of the present invention, the sealed box 110 further includes a fan 1126 disposed within the box body 112 for accelerating air flow. In this embodiment, the fan 1126 is disposed within the box body 112 to accelerate air in the box body 112 through the vents 1142 on the top plate 114. Specifically, the fan 1126 is configured to activate when the dehumidification damper 1182 / oxygen control damper 1184 is opened, accelerating air into the exhaust chamber 118, rapidly discharging the humid airflow / oxygen-enriched airflow in the sealed box 110, and thereby extending the storage time of items within the sealed box 110. In some embodiments of the present invention, the fan 1126 may preferably be a centrifugal fan 1126.

[0056] In one embodiment of the present invention, sealed box 110 further includes a humidity sensor 1122 configured to monitor the humidity within sealed box 110. The humidity within sealed box 110 is monitored by humidity sensor 1122 to obtain the current humidity of sealed box 110. The operating mode of sealed storage device 10 is adjusted based on the current humidity and a preset humidity, with the operating mode being either a dehumidification mode or an oxygen control mode. In this embodiment, the dehumidification mode is used to adjust the humidity within sealed box 110, thereby extending the storage life of items.

[0057] In some embodiments of the present invention, the sealed box 110 also includes a humidity sensor 1122, which is configured to monitor the humidity inside the sealed box 110. The operating mode of the sealed box 110 can be adjusted based on the comparison between the monitoring value of the humidity sensor 1122 and a preset value. In this embodiment, the operating mode includes a dehumidification mode.

[0058] In this embodiment, the preset value of humidity can be set to a humidity suitable for preserving stored items set by the user when the user stores items in the sealed box 110. The operating mode of the sealed box 110 is adjusted according to the current humidity and the preset humidity of the sealed box 110. For example, when the humidity of the sealed box 110 measured by the humidity sensor 1122 is higher than the preset humidity, the operating mode of the sealed box 110 is adjusted to the dehumidification mode, the dehumidification damper 1182 is opened, the sealed box 110 is dehumidified, and the humidity inside the sealed box 110 is reduced. When the humidity inside the sealed box 110 is lower than the set humidity, the dehumidification is stopped. When the current humidity is higher than the preset humidity, the operating mode of the sealed box 110 is adjusted to the dehumidification mode, the sealed box 110 is dehumidified, and the humidity inside the sealed box 110 is reduced until the humidity sensor 1122 detects that the humidity inside the sealed box 110 is lower than the preset humidity, and the dehumidification mode is stopped.

[0059] In some embodiments of the present invention, further, when the operating mode is the dehumidification mode, the dehumidification damper 1182 is opened, and the air circulation speed in the sealed box 110 can be accelerated by running the fan 1126, and the humid air can be discharged from the sealed box 110 in time, thereby reducing the air humidity in the sealed box 110.

[0060] In one embodiment of the present invention, the sealed box 110 further includes: an oxygen concentration sensor 1124, configured to monitor the oxygen concentration in the sealed box 110; when the current humidity sensed by the humidity sensor 1122 does not exceed the preset humidity, the dehumidification damper 1182 is closed; when the oxygen concentration sensor 1124 detects that the oxygen concentration in the sealed box 110 exceeds the preset oxygen concentration, the operating mode is converted to the oxygen control mode; when the operating mode is the oxygen control mode, the oxygen control damper 1184 is opened and the vacuum pump is started at the same time, and the oxygen-rich gas in the sealed box 110 is extracted by the vacuum pump to control the oxygen content in the sealed box 110, thereby achieving the effect of controlling the oxygen content in the sealed box 110.

[0061] In this embodiment, the preset value of the oxygen concentration can be set to the oxygen concentration set by the user when the user stores the items in the sealed box 110, which is suitable for preserving the stored items. The operating mode of the sealed box 110 is adjusted according to the current oxygen concentration of the sealed box 110 and the preset oxygen concentration. For example, when the humidity of the sealed box 110 is measured to be higher than the preset oxygen concentration by the oxygen concentration sensor 1124, the operating mode of the sealed box 110 is adjusted to the oxygen control mode, and the vacuum pump is started while the oxygen control damper 1184 is opened, and the gas separator 119 is cooperated to reduce the oxygen concentration in the sealed box 110. (The specific principle is as shown above and will not be described in detail here) When the oxygen concentration in the sealed box 110 is less than the preset oxygen concentration, the oxygen control mode is stopped. When the current oxygen concentration is higher than the preset oxygen concentration, the operating mode of the sealed box 110 is adjusted to the oxygen control mode, and oxygen-rich air is extracted from the sealed box 110 to reduce the oxygen concentration in the sealed box 110 until the oxygen concentration sensor 1124 detects that the oxygen concentration in the sealed box 110 is lower than the preset oxygen concentration, and the oxygen control mode is stopped.

[0062] In one embodiment of the present invention, when the user puts items in, the oxygen content and humidity in the sealed box 110 are relatively high. In order to quickly adjust the storage conditions of the sealed box 110, the dehumidification mode and the deoxygenation mode can be turned on at the same time. When the two dampers are turned on at the same time, the humidity and oxygen concentration inside the sealed box 110 will quickly reach a state that is conducive to long-term storage of items.

[0063] On the other hand, the present invention provides a refrigerator, comprising a box body 20 defining a storage compartment therein and the sealed storage device 10 for a refrigerator as described in any one of the above items.

[0064] Figure 5 2 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention.

[0065] In one embodiment of the present invention, specifically Figure 5 As shown, the refrigerator can be a left-right door refrigerator. However, the present invention does not limit the number of doors included in the refrigerator or the installation method of the doors. In other words, the refrigerator can also have various structures such as a single-door refrigerator, a multi-door structure, or a sliding door structure.

[0066] In one embodiment of the present invention, the sealed storage device 10 includes a sealed box 110, an air extraction pipe 120, and a vacuum pump. Since the vacuum pump is connected to the sealed box 110 via the air extraction pipe 120, the sealed box 110 and the vacuum pump may not be located at the same location. The location of the sealed box 110 may be as follows: Figure 5 As shown, the sealed storage device 10 may also be placed in other locations of the refrigerator as long as it is convenient for the user to store it.

[0067] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A sealed storage device for a refrigerator, which is installed in the storage space of the refrigerator, the sealed storage device comprising: A sealed box is provided in the sealed storage device, and the sealed box includes: Box body; used for storing items; A top plate is disposed at the top of the box body, and a vent is provided on the top plate; A sealing cover is buckled on the top plate and defines an exhaust cavity with the top plate, wherein the exhaust cavity is provided with; a dehumidification damper configured to be openable and closable, so that the humid air in the sealed box flows out through the vent and is discharged to the outside of the sealed box through the dehumidification damper; an oxygen control damper configured to be openable and closable, so that part of the air in the sealed box flows out through the vent and is discharged to the outside of the sealed box through the oxygen control damper; The sealed box also includes: a gas separator disposed at the rear end of the oxygen control damper, the gas separator being provided with a one-way breathable membrane, and configured to absorb the portion of air extracted by the oxygen control damper, and separate the oxygen in the portion of air from the nitrogen in the portion of air under the action of the one-way breathable membrane, so that the oxygen-rich gas in the portion of air is discharged from the sealed box, and the remaining nitrogen-rich gas is then filled into the sealed box; The exhaust chamber is also provided with: an air shield plate configured to wrap the vent so that the air exhausted from the vent can only be exhausted to the outside of the sealed box through the dehumidification damper or the oxygen control damper; The sealing cover is provided with a plurality of micro-holes for discharging the moist air discharged by the dehumidification damper to the outside of the sealing box.

2. The sealed storage device according to claim 1, characterized in that: The sealed storage device further comprises: An air extraction pipeline and a vacuum pump are provided. The vacuum pump is connected to the gas separator via the air extraction pipeline and is configured to cause the oxygen-rich gas in the portion of air in the gas separator to be discharged out of the sealed box.

3. The sealed storage device according to claim 1, characterized in that: The dehumidification damper and the oxygen control damper are located at the same end of the ventilation opening, and are adjacent to and arranged side by side.

4. The sealed storage device according to claim 2, characterized in that: The sealed box also includes: The fan is arranged in the box body and is used to accelerate the air flow.

5. The sealed storage device according to claim 4, characterized in that: The sealed box also includes: a humidity sensor configured to monitor the humidity within the sealed box; The humidity in the sealed box is monitored by the humidity sensor to obtain the current humidity of the sealed box; the operating mode of the sealed storage device is adjusted according to the current humidity and the preset humidity, and the operating mode is a dehumidification mode.

6. The sealed storage device according to claim 5, characterized in that: When the current humidity sensed by the humidity sensor exceeds the preset humidity, the operating mode is the dehumidification mode, the dehumidification damper is opened, the fan is operated, the air circulation speed in the sealed box is accelerated, and the humid air is discharged out of the sealed box in time, thereby reducing the air humidity in the sealed box.

7. The sealed storage device according to claim 6, characterized in that: The sealed box also includes: an oxygen concentration sensor configured to monitor the oxygen concentration in the sealed box; When the current humidity sensed by the humidity sensor does not exceed the preset humidity, the dehumidification mode is turned off; when the oxygen concentration sensor detects that the oxygen concentration in the sealed box exceeds the preset oxygen concentration, the operation mode is converted to the oxygen control mode. When the operation mode is the oxygen control mode, the oxygen control damper is opened and the vacuum pump is started at the same time. The oxygen-rich gas in the sealed box is extracted by the vacuum pump to control the oxygen content in the sealed box, thereby achieving the effect of controlling the oxygen content in the sealed box.

8. A refrigerator, characterized in that: A box body having a storage compartment defined therein; and the sealed storage device according to any one of claims 1 to 7.

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