Refrigerator and method for controlling humidity of refrigerator storage basket

Abstract

This application relates to the field of refrigeration equipment technology, and discloses a freezer, including an inner liner and a compressor compartment; it also includes: a main air duct connecting the inner liner and the compressor compartment, and having a water-absorbing component inside; a first secondary air duct connecting the main air duct and the compressor compartment, with a first valve at the connection point between the first secondary air duct and the main air duct; and a second secondary air duct connecting the main air duct and the inner liner, with a second valve at the connection point between the second secondary air duct and the main air duct; wherein the first valve and the second valve are located on opposite sides of the water-absorbing component, so that the airflow direction through the water-absorbing component in the main air duct can be changed by controlling the positions of the first valve and the second valve. A moisture-storing air path is formed by the main air duct and the first secondary air duct, and a humidifying air path is formed by the main air duct and the second secondary air duct, thereby humidifying a designated area of ​​the inner liner. This not only makes full use of the water vapor in the compressor compartment, but also avoids the high temperature of the compressor compartment affecting the freezing effect of the inner liner. This application also discloses a method for controlling the humidity of the freezer's storage basket.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, such as a freezer and a method for controlling the humidity of the freezer's storage basket. Background Technology

[0002] Currently, freezers are widely used due to their large storage capacity. Freezers are divided into upright freezers and horizontal freezers. Existing horizontal freezers generally use direct cooling, with the evaporator foamed inside the shell. When frost forms on the inner liner, defrosting cannot be effectively performed, requiring periodic shutdowns and emptying for defrosting and drainage, wasting consumers' time and resources. Furthermore, in actual use, because moisture in the air frosts onto the surface of the inner liner, the air inside the liner has low moisture content, causing frozen items to dry out easily.

[0003] In addition, to reduce the problem of food drying out in the freezer, a humidifier box is installed inside the freezer to keep the food moist. The moisture in the humidifier box comes from the evaporation of the stored items themselves. The humidifier box acts as a sealed container, "locking in" some moisture and allowing for proper ventilation and moisture exchange with the outside environment (the interior of the freezer), thus maintaining the humidity within the required range. However, since there is no way to replenish the moisture in the humidifier box or the humidified space, the stored items will continuously lose moisture, eventually leading to a "drying out" phenomenon.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0006] This disclosure provides a freezer and a method for controlling the humidity of the freezer's storage basket, which humidifies a designated area of ​​the inner liner, makes full use of the water vapor in the compressor compartment, and avoids the high temperature of the compressor compartment from affecting the freezing effect of the inner liner.

[0007] In some embodiments, the system includes an inner liner and a compressor chamber; it also includes:

[0008] The main air duct connects the inner tank and the compressor compartment, and is equipped with a water-absorbing component inside;

[0009] The first auxiliary air duct connects the main air duct and the compressor compartment, and a first valve is installed at the connection between the first auxiliary air duct and the main air duct;

[0010] The second auxiliary air duct connects the main air duct and the inner liner, and a second valve is provided at the connection between the second auxiliary air duct and the main air duct;

[0011] The first valve and the second valve are located on both sides of the water suction component, so as to change the direction of the airflow passing through the water suction component in the main air duct by controlling the position of the first valve and the second valve.

[0012] In some embodiments, when the first valve is in the first position, the main air duct, the first auxiliary air duct, and the compressor chamber are connected, and the airflow circulates within the main air duct, the first auxiliary air duct, and the compressor chamber; and the second valve is in the position of closing the second auxiliary air duct.

[0013] In some embodiments, when the first valve is in the second position, the main air duct is connected to the inner liner, and the airflow in the main air duct flows into the inner liner; the second valve opens the second auxiliary air duct and blocks the airflow from the compressor chamber in the main air duct.

[0014] In some embodiments, the inner liner is configured with a first communication port for communicating with the main air duct and a second communication port for communicating with the second auxiliary air duct.

[0015] The first connection port is located above the second connection port.

[0016] In some embodiments, it also includes:

[0017] The evaporator compartment is located inside the inner liner;

[0018] The second connecting port is located around the return air vent of the evaporator compartment.

[0019] In some embodiments, the first and second auxiliary air ducts are located on either side of the main air duct.

[0020] In some embodiments, it also includes:

[0021] The fan assembly is located inside the main air duct to ensure that the airflow in the main air duct flows in a specified direction.

[0022] In some embodiments, the fan assembly is located above the water intake and below the first valve.

[0023] In some embodiments, it also includes:

[0024] The filter screen is located inside the main air duct and below the second valve.

[0025] In some embodiments, it also includes:

[0026] The storage basket is located inside the inner liner, and the side wall has a ventilation opening;

[0027] The ventilation section of the storage basket is connected to the main air duct through the inner liner, so that the airflow in the main air duct flows into the storage basket.

[0028] In some embodiments, a method for controlling the humidity of a freezer storage basket includes a freezer as provided in the foregoing embodiments, the method comprising:

[0029] When the freezer is in defrost mode, if the position condition of the first valve and the first preset time condition are met at the same time, the main air duct and the first auxiliary air duct are connected so that the water absorption component can store moisture.

[0030] When the freezer is in non-defrost mode or the process of storing moisture in the water absorption component is not in progress, the humidity in the storage basket is detected. Based on the comparison between the current humidity value and the preset humidity value, the position of the second valve is switched to control the connection between the main air duct and the second auxiliary air duct.

[0031] In some embodiments, the position conditions and the first preset time conditions of the first valve control the connection between the main air duct and the first auxiliary air duct, including:

[0032] When the first valve is in the first position and the time interval between the last time the water absorption element was not in the moisture storage process is greater than or equal to the preset time T1, the first valve is controlled to be in the first position so that the main air duct and the first auxiliary air duct are connected and the water absorption element stores moisture.

[0033] In some embodiments, the freezer further includes: the method further includes:

[0034] If the freezer is detected to be in defrost mode but does not meet the first preset time condition, it is determined that the defrost mode has been entered for a preset time T2, and the fan assembly is controlled to start.

[0035] In some embodiments, when the freezer is in non-defrost mode or the process of not storing moisture in the absorbent element is detected, the humidity in the storage basket is detected, and the position of the second valve is switched according to the comparison result of the current humidity value and the preset humidity value to control the connection between the main air duct and the second auxiliary air duct, including:

[0036] When the current humidity value is lower than the preset humidity value, the first valve and the second valve are switched to connect the main air duct and the second auxiliary air duct, so that the air in the second auxiliary air duct passes through the water absorption component in the main air duct to humidify the storage basket.

[0037] In some embodiments, when the freezer is in non-defrost mode or the process of not storing moisture in the absorbent element is detected, the humidity in the storage basket is detected, and the position of the second valve is switched according to the comparison result of the current humidity value and the preset humidity value to control the connection between the main air duct and the second auxiliary air duct, and the process further includes:

[0038] When the current humidity value is greater than or equal to the preset humidity value, the second valve is controlled to the second position to disconnect the air path between the main air duct and the second auxiliary air duct.

[0039] In some embodiments, controlling the connection between the main air duct and the first secondary air duct further includes: controlling the fan assembly to start; and / or,

[0040] The connection between the main air duct and the second auxiliary air duct also includes: controlling the start of the fan assembly.

[0041] In some embodiments, a humidity sensor is provided inside the storage basket to monitor the humidity inside the storage basket and trigger the switching of the first valve and the second valve, as well as the opening and closing of the fan assembly.

[0042] The freezer and the method for controlling the humidity of the freezer storage basket provided in this disclosure can achieve the following technical effects:

[0043] A moisture-retaining airflow path is formed by the main air duct and the first auxiliary air duct, transferring moisture from the compressor compartment to the water-absorbing element. Then, through the humidifying airflow path formed by the main and second auxiliary air ducts, the moisture on the water-absorbing element flows into the inner liner with the low-temperature airflow from the second auxiliary air duct, humidifying a designated area within the inner liner. This not only fully utilizes the moisture in the compressor compartment but also prevents the higher temperature of the compressor compartment from affecting the freezing effect of the inner liner. Furthermore, multi-condition coordination and dynamic switching of the dual air ducts enable precise control and closed-loop humidity regulation between the freezer's defrosting mode and the humidity of the freezer's storage baskets, improving the freezer's humidity control accuracy, energy efficiency ratio, and system reliability.

[0044] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0045] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0046] Figure 1 This is a schematic diagram of the structure of the freezer provided in the embodiments of this disclosure;

[0047] Figure 2 This is a structural schematic diagram of the freezer provided in another embodiment of the present disclosure;

[0048] Figure 3 This is a structural schematic diagram of the freezer provided in another embodiment of the present disclosure;

[0049] Figure 4 This is a structural schematic diagram of the freezer provided in another embodiment of the present disclosure;

[0050] Figure 5 This is a structural schematic diagram of the freezer provided in another embodiment of the present disclosure;

[0051] Figure 6 This is a schematic diagram of the main air duct, the first secondary air duct, and the second secondary air duct provided in the embodiments of this disclosure;

[0052] Figure 7 This is a cross-sectional schematic diagram of the main air duct, the first secondary air duct, and the second secondary air duct provided in the embodiments of this disclosure;

[0053] Figure 8 This is an exploded schematic diagram of the storage basket provided in an embodiment of this disclosure;

[0054] Figure 9 This is a flowchart illustrating the control method provided in an embodiment of this disclosure.

[0055] Figure label:

[0056] 10: Main air duct; 101: First connecting port; 102: Third connecting port;

[0057] 20: First auxiliary air duct; 201: Fourth connecting port;

[0058] 30: Second auxiliary air duct; 301: Second connecting port;

[0059] 40: First valve; 401: First motor; 402: First valve body;

[0060] 50: Second valve; 501: Second motor; 502: Second valve body;

[0061] 60: Water intake component; 70: Fan assembly; 80: Filter screen;

[0062] 90: Inner liner; 100: Compressor compartment; 110: Evaporator compartment;

[0063] 120: Storage basket; 121: Humidification box; 1211: First ventilation section; 122: Extension box; 1221: Second ventilation section. Detailed Implementation

[0064] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0065] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0066] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0067] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0068] Unless otherwise stated, the term "multiple" means two or more.

[0069] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0070] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0071] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0072] The freezer provided in this embodiment is a horizontal freezer, with the compressor compartment located at the bottom of one side of the inner liner, and the evaporator compartment inside the inner liner, located above the compressor compartment. An evaporation dish is provided inside the compressor compartment to collect defrost water. Furthermore, the compressor compartment is not only humid but also hot.

[0073] Combination Figures 1 to 9 As shown in the figure, this embodiment of the present disclosure provides a refrigerator, including an inner liner 90 and a compressor compartment 100; it also includes: a main air duct 10, a first secondary air duct 20, and a second secondary air duct 30. The air path formed by the connection of the main air duct 10 and the first secondary air duct 20 is a moisture storage air path. The air path formed by the connection of the main air duct 10 and the second secondary air duct 30 is a humidification air path.

[0074] The main air duct 10 connects the inner tank 90 and the compressor chamber 100, and is equipped with a water-absorbing component 60 inside. The high-temperature, high-humidity airflow in the compressor chamber 100 flows through the water-absorbing component 60 in the main air duct 10, and water vapor adheres to the water-absorbing component 60. A first auxiliary air duct 20 connects the main air duct 10 and the compressor chamber 100, and a first valve 40 is installed at the connection point between the first auxiliary air duct 20 and the main air duct 10. The first valve 40 is used to control the opening and closing of the humidification air path, i.e., controlling the opening and closing of the air path from the connection point between the main air duct 10 and the first auxiliary air duct 20. A second auxiliary air duct 30 connects the main air duct 10 and the inner tank 90, and a second valve 50 is installed at the connection point between the second auxiliary air duct 30 and the main air duct 10. The second valve 50 is used to control the opening and closing of the humidification air path, i.e., controlling the opening and closing of the air path from the connection point between the main air duct 10 and the second auxiliary air duct 30. The first valve 40 and the second valve 50 are located on both sides of the water suction component 60, respectively, so as to change the direction of the airflow passing through the water suction component 60 in the main air duct 10 by controlling the position of the first valve 40 and the second valve 50. The airflow in the main air duct 10 can flow from the first auxiliary air duct 20 to the compressor chamber 100, and can also flow into the inner tank 90.

[0075] The air passage formed by the connection of the main air duct 10 and the first auxiliary air duct 20 is a moisture storage air passage. The high-temperature and high-humidity airflow in the compressor chamber 100 flows through the water suction element 60 of the main air duct 10, and the water vapor remains on the water suction element 60. The high-temperature airflow flows back into the compressor chamber 100 from the first auxiliary air duct 20. In this way, the water vapor evaporated in the compressor chamber 100 is transferred to the water suction element 60.

[0076] The air passage formed by the connection of the main air duct 10 and the second secondary air duct 30 is a humidifying air passage. The dry, low-temperature airflow in the inner liner 90 flows into the main air duct 10 through the second secondary air duct 30. When it flows through the water absorption component 60, the water in the water absorption component 60 evaporates, thereby humidifying the airflow in the main air duct 10. The humidified airflow continues to flow along the main air duct 10 and finally flows into the inner liner 90, humidifying the storage basket 120 in the inner liner 90, thereby ensuring the freshness and moisture retention of the food in the storage basket 120.

[0077] The freezer provided in this embodiment forms a moisture storage air path through the main air duct 10 and the first secondary air duct 20, which transfers the water vapor in the compressor chamber 100 to the water absorption component 60. Then, through the humidification air path formed by the main air duct 10 and the second secondary air duct 30, the water vapor on the water absorption component 60 flows into the inner liner 90 with the low-temperature airflow from the second secondary air duct 30, thereby humidifying a designated area of ​​the inner liner 90. This not only makes full use of the water vapor in the compressor chamber 100, but also avoids the high temperature of the compressor chamber 100 from affecting the freezing effect of the inner liner 90.

[0078] This embodiment utilizes the main air duct 10, the first auxiliary air duct 20, the second auxiliary air duct 30, the first valve 40, and the second valve 50 to achieve the alternating entry of hot and cold air into the main air duct 10. This not only humidifies a localized area of ​​the inner liner 90 but also avoids affecting the freezing effect of the inner liner 90. In other words, by alternating the entry of hot and cold air into the main air duct 10, compared to directly introducing air from the compressor chamber 100 into the inner liner 90, the impact on the refrigeration effect of the freezer is reduced. Furthermore, when hot air from the compressor chamber 100 enters the main air duct 10, it can heat the main air duct 10, defrosting the walls or other components of the main air duct 10.

[0079] This embodiment utilizes the water-absorbing component 60 to achieve the purpose of water storage and humidification. For example, the water-absorbing component 60 can be a water-absorbing mesh. It can be a porous mesh structure made of a highly absorbent material (such as a sponge).

[0080] This embodiment uses evaporated water vapor for humidification, which reduces the amount of frost inside the inner tank compared to direct spraying, and does not require additional water.

[0081] Optionally, the first valve 40 includes a first motor 401 and a first valve body, with the first motor 401 controlling the rotation of the first valve body. The first motor 401 is mounted on the side wall of the main air duct 10. For example, the first valve body may be a flat plate.

[0082] Optionally, the second valve 50 includes a second motor 501 and a second valve body 502. The second motor 501 controls the rotation of the second valve body 502, wherein the second motor 501 is mounted on the side wall of the main air duct 10. For example, the second valve body 502 may be a flat plate.

[0083] Optionally, the first auxiliary air duct 20 and the main air duct 10 can be in an h-shape.

[0084] Optionally, the second auxiliary air duct 30 and the main air duct 10 can be T-shaped.

[0085] Optionally, when the first valve 40 is in the first position, the main air duct 10, the first auxiliary air duct 20 and the compressor chamber 100 are connected, and the airflow circulates within the main air duct 10, the first auxiliary air duct 20 and the compressor chamber 100; and the second valve 50 is in the position of closing the second auxiliary air duct 30.

[0086] The first valve 40 is in the first position, which means that the air passage between the main air duct 10 and the inner liner 90 is blocked, while the air passage between the main air duct 10 and the first auxiliary air duct 20 is opened, thereby connecting the main air duct 10, the first auxiliary air duct 20 and the compressor chamber 100.

[0087] The high-temperature, high-humidity airflow inside the compressor chamber 100 flows through the water-absorbing element 60 of the main air duct 10, where water vapor remains. The high-temperature airflow then flows back into the compressor chamber 100 through the first secondary air duct 20. In this way, the water vapor evaporated inside the compressor chamber 100 is transferred to the water-absorbing element 60, and the high-temperature, high-humidity airflow is prevented from directly flowing into the inner liner 90, thus avoiding any impact on the freezer's freezing performance.

[0088] When the humidification air path is unobstructed, the second valve 50 is in the position of closing the second auxiliary air duct 30. That is, the second valve 50 blocks the humidification air path, preventing the high-temperature airflow of the humidification air path from flowing into the inner liner 90 through the second auxiliary air duct 30, thereby affecting the freezing effect of the freezer.

[0089] In the freezer provided in this embodiment, the initial state of the first valve 40 is that the first valve 40 is in the first position, the main air duct 10 is connected to the first auxiliary air duct 20, and the third connecting port 102 is connected to the fourth connecting port 201, thus separating the hot air in the compressor chamber 100 from the cold air in the freezer. When the freezer is detected to be entering defrost mode, it is first determined whether the first valve 40 was switched to the second position when the fan in the fan assembly 70 was used last time (i.e., whether a humidification process was performed). If it was not switched to the second position (no humidification was performed after the last humidification), and the interval after the last humidification is less than T1 (the time it takes for the water in the water absorption component 60 to evaporate naturally and not meet the humidification requirements), it means that there is enough water in the water absorption component for the next humidification, so humidification is not performed again; otherwise, the humidification process continues. When the defrosting mode is entered for time T2 (the time when defrosting water droplets fall into the evaporation dish), the fan in the fan assembly 70 is turned on. The hot and humid air passes through the filter 80, the water absorption component 60 and the fan assembly 70 in sequence, and finally flows back to the compressor chamber 100. After time T3 (the time when the water absorption component 60 is saturated with water according to experimental tests), the fan in the fan assembly 70 is turned off, completing the moisture storage process.

[0090] Optionally, when the first valve 40 is in the second position, the main air duct 10 is connected to the inner liner 90, and the airflow in the main air duct 10 flows into the inner liner 90; the second valve 50 opens the second auxiliary air duct 30 and blocks the airflow from the compressor chamber 100 in the main air duct 10.

[0091] The second valve 50 is in the second position, connecting the main air duct 10 to the inner liner 90 and blocking the airflow between the main air duct 10 and the first auxiliary air duct 20, thus allowing the airflow in the main air duct 10 to flow directly into the inner liner 90. The second valve 50 opens the second auxiliary air duct 30, i.e., opens the humidification airflow path, and the second valve 50 also blocks the airflow from the compressor chamber 100 in the main air duct 10, which can be understood as blocking the moisture storage airflow path.

[0092] The dry, low-temperature airflow in the inner liner 90 flows into the main air duct 10 through the second auxiliary air duct 30. When it flows through the water-absorbing component 60, the water in the water-absorbing component 60 evaporates, thereby humidifying the airflow in the main air duct 10. The humidified airflow continues to flow along the main air duct 10 and finally flows into the inner liner 90, humidifying the storage basket 120 in the inner liner 90, thereby ensuring the freshness and moisture retention of the food in the storage basket 120.

[0093] Hot air from the compressor compartment 100 and cold air from the second auxiliary air duct 30 alternately enter the main air duct 10, which not only humidifies a local area of ​​the inner liner 90 but also avoids affecting the freezing effect of the inner liner 90. Compared with directly introducing the compressed air from the compressor compartment 100 into the inner liner 90, this reduces the impact on the refrigeration effect of the freezer.

[0094] For the humidification process, first determine if the freezer is defrosting. If defrosting is in progress, then check if the first valve 40 switched to the second position when the fan in the fan assembly 70 was started last time, and whether the interval since the last humidification storage has reached T1. The purpose of this step is to determine whether the fan will be turned on for humidification storage during this defrosting process, avoiding conflicts with the humidification storage process. If humidification storage will occur later, the humidification process ends, and continues only after humidification storage is complete. If the defrosting process does not involve a humidification process or the freezer is not defrosting, the humidification process continues. By placing an appropriate number of humidity sensors at suitable locations within the storage basket 120, the humidity inside the basket is monitored. When the humidity inside the basket is lower than the set value RH1, the first motor 401 and the second motor 501 are started, the first valve 40 and the second valve 50 are rotated, the main air duct 10 is connected to the second auxiliary air duct 30, and the first connecting port 101 is connected to the second connecting port 301. The fan is turned on, and the dry, cold air inside the freezer passes through the water-absorbing component 60 and the fan in sequence, finally flowing back into the freezer. When the air flows through the water-absorbing component 60, since the water-absorbing component 60 is already saturated with water, the dry air will evaporate the moisture on it, thereby humidifying the air. This allows the air blown into the storage basket 120 to humidify the storage basket 120. When the humidity inside the basket is greater than the set value RH2 (RH2>RH1), the fan is turned off, and the first motor 401 and the second motor 501 are started to drive the first valve body and the second valve body 502 to rotate, thus completing the humidification process.

[0095] The times T1, T2, and T3 involved in this embodiment can be determined according to the actual situation, and are not specifically limited here.

[0096] Similarly, in this embodiment, the humidity setting values ​​RH1 and RH2 are determined according to the actual situation and are not specifically limited here.

[0097] Optionally, the inner liner 90 is configured with a first connecting port 101 for communicating with the main air duct 10 and a second connecting port 301 for communicating with the second auxiliary air duct 30; wherein the first connecting port 101 is located above the second connecting port 301.

[0098] The first connecting port 101 is the air inlet of the inner liner 90, meaning that the airflow from the main air duct 10 flows into the inner liner 90 through the first connecting port 101. The second connecting port 301 is the air outlet, meaning that the cold airflow from the inner liner 90 flows into the main air duct 10 through the second secondary air duct 30 from the second air outlet.

[0099] The first connecting port 101 is located above the second connecting port 301. This avoids airflow interference between the two ports and allows the humidifying airflow from the first connecting port 101 to act on the food stored in the freezer from top to bottom. Furthermore, cold air from the inner liner 90 can flow into the second auxiliary air duct 30 through the lower second connecting port 301.

[0100] Optionally, the ventilation area of ​​the second connecting port 301 is smaller than the ventilation area of ​​the first connecting port 101.

[0101] Optionally, the cross-section of the air outlet in the main air duct 10 connected to the first connecting port 101 is V-shaped, which can expand the air outlet area, that is, expand the humidification range of the corresponding area inside the inner tank 90.

[0102] Optionally, the freezer also includes an evaporator compartment 110, located in the inner liner 90; wherein the second connecting port 301 is located around the return air vent of the evaporator compartment 110.

[0103] The second connecting port 301 is close to the return air vent of the evaporator compartment 110. This not only helps to accelerate the airflow, but also ensures that the temperature of the airflow flowing into the second auxiliary air duct 30 meets the requirements. The water absorption component 60 flowing through the main air duct 10 not only carries away the water vapor from the water absorption component 60, but also ensures the freezing effect of the freezer when the airflow flows into the inner liner 90.

[0104] The second connecting port 301 is located at the return air inlet. The temperature here is relatively high, the air has a strong moisture absorption capacity, and it can also reduce frost formation in the air duct and the temperature difference with the hot air.

[0105] For example, the ventilation area of ​​the second connection port 301 is small to avoid affecting the normal airflow inside the freezer.

[0106] Optionally, the first auxiliary air duct 20 and the second auxiliary air duct 30 are located on both sides of the main air duct 10.

[0107] The first auxiliary air duct 20 and the second auxiliary air duct 30 are respectively located on both sides of the main air duct 10. In this way, the design of the connection between the first auxiliary air duct 20 and the main air duct 10 and the design of the connection between the second auxiliary air duct 30 and the main air duct 10 avoids cross-interference during installation and minimizes the area occupied by the main air duct 10, the first auxiliary air duct 20 and the second auxiliary air duct 30.

[0108] In addition, while avoiding interference between the first secondary air duct 20 and the second secondary air duct 30, it can also prevent fluctuations in the temperature of the air flowing in the air duct, thereby affecting the humidification or moisture storage effect.

[0109] Optionally, the freezer also includes a fan assembly 70 disposed within the main air duct 10 to accelerate airflow within the main air duct 10.

[0110] In this embodiment, a fan assembly 70 is installed in the main air duct 10. The fan assembly 70 draws airflow from the compressor chamber 100 into the main air duct 10, and also draws airflow from the second auxiliary air duct 30 into the main air duct 10. The fan assembly 70 can also accelerate the airflow within the main air duct 10, helping to prevent moisture carried by the high-temperature and high-humidity airflow from adhering to the side walls of the main air duct 10 and forming frost.

[0111] In this embodiment, the air outlet side of the fan assembly 70 faces the first connecting port 101, and the air inlet side faces the third connecting port 102 between the main air duct 10 and the compressor compartment 100. The third connecting port 102 is the air inlet.

[0112] In addition, the connection between the first auxiliary air duct 20 and the compressor compartment 100 is the fourth connection port 201, which is the air outlet.

[0113] Optionally, the fan assembly 70 is located above the water intake member 60 and below the first valve 40.

[0114] Positioning the fan assembly 70 above the water suction member 60 not only accelerates the airflow through the water suction member 60, but also prevents water droplets formed on the surface of the water suction member 60 from falling onto the fan assembly 70, thereby affecting the rotation of the fan assembly 70.

[0115] The fan assembly 70 is located below the first valve 40. Thus, regardless of the positions of the first valve 40 and the second valve 50, when the moisture-storing air path is unobstructed, the fan assembly 70 is positioned within the moisture-storing air path, accelerating airflow. When the humidifying air path is unobstructed, the fan assembly 70 is positioned within the humidifying air path, accelerating airflow.

[0116] Optionally, the freezer also includes a filter 80, located inside the main air duct 10 and below the second valve 50.

[0117] A filter screen 80 is installed inside the main air duct 10 to filter the airflow within the duct. The filter screen 80 is located below the second valve 50, and is close to the third connection port 102 connecting the main air duct 10 and the compressor chamber 100. The filter screen 80 primarily filters the airflow from the compressor chamber 100, preventing dust or foreign objects carried in the airflow from adhering to the water suction element 60, which would not only affect the quality of the water vapor but also the smoothness of the airflow.

[0118] Optionally, the freezer also includes: a storage basket 120, located in the inner liner 90, with ventilation openings on the side walls;

[0119] The ventilation section of the storage basket 120 is connected to the main air duct 10 through the inner liner 90, so that the airflow in the main air duct 10 flows into the storage basket 120.

[0120] The storage basket 120 is located on the upper part of the inner liner 90, and the edge of the storage basket 120 overlaps the opening edge of the inner liner 90. The storage basket 120 includes at least a humidifying box 121 and an expansion box 122. The expansion box 122 partially surrounds the humidifying box 121 in the transverse direction, and the expansion box 122 and the humidifying box 121 are movable relative to each other.

[0121] Optionally, the side wall of the humidifying box 121 is provided with a first ventilation section 1211, and the side wall of the expansion box 122 is provided with a second ventilation section 1221 that matches the first ventilation section 1211; when the humidifying box 121 and the expansion box 122 are stacked and stored, the first ventilation section 1211 and the second ventilation section 1221 are connected to each other.

[0122] The first ventilation section 1211 and the second ventilation section 1221 are ventilation sections of the storage basket 120 and correspond to the first connecting port 101 of the main air duct 10, so that the airflow in the main air duct 10 flows into the storage basket 120 to keep the food in the storage basket 120 fresh and moist, and prevent the food from drying out, thereby affecting the taste of the food.

[0123] Combination Figures 1 to 9 As shown in the figure, this disclosure provides a method for controlling the humidity of a freezer storage basket, the method comprising:

[0124] S1. When the freezer is detected to be in defrost mode, if the position condition of the first valve and the first preset time condition are met at the same time, the main air duct and the first auxiliary air duct are connected so that the water absorption component can store moisture.

[0125] S2. When the freezer is in non-defrost mode or the process of storing moisture in the water absorption component is not in progress, the humidity in the storage basket is detected. Based on the comparison between the current humidity value and the preset humidity value, the position of the second valve is switched to control the connection between the main air duct and the second auxiliary air duct.

[0126] The method provided in this disclosure not only makes full use of the water vapor in the compressor compartment, but also avoids the high temperature of the compressor compartment from affecting the freezing effect of the inner liner. The multi-condition coordinated triggering and dual-air duct dynamic switching realize precise control and closed-loop humidity regulation between the defrosting mode of the freezer and the humidity of the freezer storage basket, thereby improving the humidity control accuracy, energy efficiency ratio and system reliability of the freezer.

[0127] When the freezer enters defrost mode, the system determines whether the first valve is in the required moisture storage position (i.e., the main air duct and the first auxiliary air duct are connected) and whether the first preset time condition (the moisture storage interval set based on the moisture evaporation characteristics of the absorbent component) is met. The moisture storage process is only initiated when the absorbent component is insufficient. This design avoids redundant moisture storage operations, significantly reduces energy consumption, and ensures that the absorbent component is always in an effective moisture storage state, extending its service life.

[0128] In non-defrost mode or when the humidity storage process is not in progress, the humidity level inside the storage basket is monitored in real time and compared with preset humidity thresholds (RH1 and RH2). The position of the second valve is dynamically switched to control the connection between the main air duct and the second auxiliary air duct. This mechanism can precisely adjust the flow path of dry and cold air inside the freezer according to actual humidity requirements. The air is humidified after passing through the water absorption element and then returned to the storage basket, ensuring that the humidity quickly stabilizes within the target range and effectively preventing the quality deterioration of items due to excessive dryness or humidity.

[0129] By selectively connecting the main air duct to either the first or second auxiliary air duct, physical isolation (during humidification) of the hot air in the compressor compartment and the cold air in the freezer can be achieved, or airflow can circulate within the freezer (during humidification). This structural design simplifies the complexity of the air duct system, reduces redundant components, and avoids energy loss caused by the mixing of hot and cold airflows, thereby improving overall heat exchange efficiency.

[0130] By differentiating the operational logic between defrosting and non-defrosting modes, and combining multi-condition collaborative judgment based on valve position, time parameters, and humidity feedback, the system achieves temporal separation and functional complementarity between the moisture storage and humidification processes. This avoids conflicts between the two processes while ensuring dynamic matching between the moisture storage capacity of the absorber and humidification requirements, thereby improving system operational stability and response speed.

[0131] Based on preset time conditions (such as the natural evaporation time T1 of the water absorption element) and precise position control of the mechanical valve, the need for manual intervention is reduced, lowering the risk of misoperation. Real-time monitoring and closed-loop control by the humidity sensor further enhance the system's adaptability, ensuring stable operation of the freezer under different operating conditions.

[0132] With the first valve 40 in the first position, the main air duct 10, the first auxiliary air duct 20 and the compressor chamber 100 are connected, and the airflow circulates within the main air duct 10, the first auxiliary air duct 20 and the compressor chamber 100; and the second valve 50 is in the position of closing the second auxiliary air duct 30.

[0133] The first valve 40 is in the first position, which means that the air passage between the main air duct 10 and the inner liner 90 is blocked, while the air passage between the main air duct 10 and the first auxiliary air duct 20 is opened, thereby connecting the main air duct 10, the first auxiliary air duct 20 and the compressor chamber 100.

[0134] The high-temperature, high-humidity airflow inside the compressor chamber 100 flows through the water-absorbing element 60 of the main air duct 10, where water vapor remains. The high-temperature airflow then flows back into the compressor chamber 100 through the first secondary air duct 20. In this way, the water vapor evaporated inside the compressor chamber 100 is transferred to the water-absorbing element 60, and the high-temperature, high-humidity airflow is prevented from directly flowing into the inner liner 90, thus avoiding any impact on the freezer's freezing performance.

[0135] When the humidification air path is unobstructed, the second valve 50 is in the position of closing the second auxiliary air duct 30. That is, the second valve 50 blocks the humidification air path, preventing the high-temperature airflow of the humidification air path from flowing into the inner liner 90 through the second auxiliary air duct 30, thereby affecting the freezing effect of the freezer.

[0136] In the method provided in this embodiment, the initial state of the first valve 40 is that the first valve 40 is in the first position, the main air duct 10 is connected to the first auxiliary air duct 20, and the third connecting port 102 is connected to the fourth connecting port 201, thus separating the hot air in the compressor chamber 100 from the cold air in the freezer. When the freezer is detected to be entering defrost mode, it is first determined whether the first valve 40 was switched to the second position when the fan in the fan assembly 70 was used last time (i.e., whether a humidification process was performed). If it was not switched to the second position (no humidification was performed after the last humidification), and the interval after the last humidification is less than T1 (the time it takes for the water in the water absorption component 60 to evaporate naturally and not meet the humidification requirements), it means that there is enough water in the water absorption component for the next humidification, so humidification is not performed again; otherwise, the humidification process continues. When the defrosting mode is entered for time T2 (the time when defrosting water droplets fall into the evaporation dish), the fan in the fan assembly 70 is turned on. The hot and humid air passes through the filter 80, the water absorption component 60 and the fan assembly 70 in sequence, and finally flows back to the compressor chamber 100. After time T3 (the time when the water absorption component 60 is saturated with water according to experimental tests), the fan in the fan assembly 70 is turned off, completing the moisture storage process.

[0137] With the first valve 40 in the second position, the main air duct 10 is connected to the inner liner 90, and the airflow in the main air duct 10 flows into the inner liner 90; the second valve 50 opens the second auxiliary air duct 30 and blocks the airflow from the compressor chamber 100 in the main air duct 10.

[0138] The second valve 50 is in the second position, connecting the main air duct 10 to the inner liner 90 and blocking the airflow between the main air duct 10 and the first auxiliary air duct 20, thus allowing the airflow in the main air duct 10 to flow directly into the inner liner 90. The second valve 50 opens the second auxiliary air duct 30, i.e., opens the humidification airflow path, and the second valve 50 also blocks the airflow from the compressor chamber 100 in the main air duct 10, which can be understood as blocking the moisture storage airflow path.

[0139] The dry, low-temperature airflow in the inner liner 90 flows into the main air duct 10 through the second auxiliary air duct 30. When it flows through the water-absorbing component 60, the water in the water-absorbing component 60 evaporates, thereby humidifying the airflow in the main air duct 10. The humidified airflow continues to flow along the main air duct 10 and finally flows into the inner liner 90, humidifying the storage basket 120 in the inner liner 90, thereby ensuring the freshness and moisture retention of the food in the storage basket 120.

[0140] Hot air from the compressor compartment 100 and cold air from the second auxiliary air duct 30 alternately enter the main air duct 10, which not only humidifies a local area of ​​the inner liner 90 but also avoids affecting the freezing effect of the inner liner 90. Compared with directly introducing the compressed air from the compressor compartment 100 into the inner liner 90, this reduces the impact on the refrigeration effect of the freezer.

[0141] Optionally, the position conditions and the first preset time conditions of the first valve, controlling the connection between the main air duct and the first auxiliary air duct, include: when the first valve is in the first position and the time interval between the last time the water absorption element was not stored in moisture is greater than or equal to the preset time T1, controlling the first valve to be in the first position so that the main air duct and the first auxiliary air duct are connected, and the water absorption element stores moisture.

[0142] By employing a dual-condition collaborative judgment that limits the process to "the first valve being in the first position" and "the time since the end of the last non-moisture storage process to ≥T1," the moisture storage process is ensured to start only when the absorber actually needs to be replenished with moisture. The time parameter T1 is set based on the natural evaporation characteristics of moisture in the absorber, accurately reflecting the decay period of the absorber's moisture storage capacity. This avoids redundant operation or insufficient moisture storage caused by starting moisture storage too early or too late, significantly improving the targeting and efficiency of the moisture storage operation.

[0143] The combined determination of two conditions (position + time) effectively avoids the risk of a single condition erroneously triggering the moisture storage process (for example, relying solely on the time condition may lead to redundant activation when the absorbent still has moisture storage capacity), enhances the system's anti-interference capability, and ensures the rigor and scientific nature of the moisture storage process. Through the dual-condition collaborative triggering mechanism and valve status locking design, precise and efficient control of the moisture storage process is achieved, combining energy saving and consumption reduction with improved system stability.

[0144] Optionally, the method further includes: when the freezer is detected to be in defrost mode and does not meet the first preset time condition, determining that the defrost mode has been entered for a preset time T2, and controlling the fan assembly to start.

[0145] When the freezer enters defrost mode and it is determined that moisture storage is not required (the first preset time condition is not met), a preset time T2 (e.g., the time required for defrost water droplets to fall onto the evaporation dish) is introduced as the trigger condition for fan startup. This ensures that even if the moisture storage process is not executed, the delayed start of the fan can still be controlled through precise timing. This design avoids premature fan activation that interferes with the natural drainage of defrost water, while also preventing the risk of evaporation dish overflow or duct icing due to defrost water accumulation, thus ensuring the integrity and safety of the defrost process.

[0146] Optionally, when the freezer is in non-defrost mode or the process of storing moisture in the water-absorbing component is not in progress, the humidity in the storage basket is detected. Based on the comparison between the current humidity value and the preset humidity value, the position of the second valve is switched to control the connection between the main air duct and the second auxiliary air duct. This includes: when the current humidity value is less than the preset humidity value, controlling the switching position of the first valve and the second valve to connect the main air duct and the second auxiliary air duct so that the air in the second auxiliary air duct passes through the water-absorbing component in the main air duct to humidify the storage basket.

[0147] By monitoring the humidity inside the storage basket in real time and comparing it with a preset threshold (RH1), the first and second valves are triggered to switch in tandem only when the humidity is below the target value, connecting the main air duct and the second auxiliary air duct. This mechanism ensures that humidification is started strictly based on actual needs, avoiding ineffective humidification or humidity fluctuations, significantly improving the stability of the humidity environment inside the storage basket, and effectively preventing the quality deterioration of items due to dryness.

[0148] When the main air duct and the second auxiliary air duct are connected, the dry, cold air inside the freezer flows through the water-absorbing component (which is saturated with water at this time). Humidification is achieved through moisture exchange between the air and the water-absorbing component, and the humidified air is then directed to the storage basket. This design makes full use of the moisture storage capacity of the water-absorbing component and the physical isolation characteristics of the air duct switching, which simplifies the system structure, avoids the introduction of additional humidification components, and reduces manufacturing costs and maintenance difficulty.

[0149] The synchronous switching of the first and second valves ensures a stable connection between the main air duct and the second auxiliary air duct, preventing airflow leakage or path interference caused by deviations in the operation of a single valve. Simultaneously, the timing coordination between valve switching and fan operation (e.g., turning on the fan to drive airflow) further enhances humidification efficiency and shortens humidity adjustment response time.

[0150] Optionally, when the freezer is in non-defrost mode or the process of storing moisture in the water absorption component is not performed, the humidity in the storage basket is detected, and the position of the second valve is switched according to the comparison result of the current humidity value and the preset humidity value to control the connection between the main air duct and the second auxiliary air duct. It also includes: when the current humidity value is greater than or equal to the preset humidity value, controlling the second valve to be in a second position to disconnect the air path between the main air duct and the second auxiliary air duct.

[0151] When the humidity level inside the storage basket is detected to be greater than or equal to the preset humidity threshold (RH2), the second valve is switched to the second position (i.e., disconnecting the connection between the main air duct and the second auxiliary air duct), immediately terminating the humidification airflow circulation. This mechanism can precisely prevent excessive humidity inside the storage basket caused by over-humidification, avoiding the risk of mold or spoilage caused by moisture accumulation, and significantly improving the quality assurance capability of stored items.

[0152] For the humidification process, first determine if the freezer is defrosting. If defrosting is in progress, then check if the first valve 40 switched to the second position when the fan in the fan assembly 70 was started last time, and whether the interval since the last humidification storage has reached T1. The purpose of this step is to determine whether the fan will be turned on for humidification storage during this defrosting process, avoiding conflicts with the humidification storage process. If humidification storage will occur later, the humidification process ends, and continues only after humidification storage is complete. If the defrosting process does not involve a humidification process or the freezer is not defrosting, the humidification process continues. By placing an appropriate number of humidity sensors at suitable locations within the storage basket 120, the humidity inside the basket is monitored. When the humidity inside the basket is lower than the preset humidity value RH1, the first motor 401 and the second motor 501 are started, the first valve 40 and the second valve 50 are rotated, the main air duct 10 is connected to the second auxiliary air duct 30, and the first connecting port 101 is connected to the second connecting port 301. The fan is turned on, and the dry, cold air inside the freezer passes through the water absorption component 60 and the fan in sequence, and finally flows back into the freezer. When the air flows through the water absorption component 60, since the water absorption component 60 is already saturated with water, the dry air will evaporate the moisture on it, thereby humidifying the air. This allows the air blown into the storage basket 120 to humidify the storage basket 120. When the humidity inside the basket is greater than the preset humidity value RH2 (RH2>RH1), the fan is turned off, and the first motor 401 and the second motor 501 are started to drive the first valve body and the second valve body 502 to rotate, thus completing the humidification process.

[0153] The times T1, T2, and T3 involved in this embodiment can be determined according to the actual situation, and are not specifically limited here.

[0154] Similarly, in this embodiment, the preset humidity values ​​RH1 and RH2 are determined according to the actual situation and are not specifically limited here.

[0155] Optionally, controlling the connection between the main air duct and the first secondary air duct further includes: controlling the start of the fan assembly; and / or, controlling the connection between the main air duct and the second secondary air duct further includes: controlling the start of the fan assembly.

[0156] Optionally, a humidity sensor is installed inside the storage basket to monitor the humidity inside the storage basket and trigger the switching of the first valve and the second valve, as well as the opening and closing of the fan assembly.

[0157] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A refrigerator comprising an inner tank and a pressurized cabin; characterized in that, Also includes: The main air duct connects the inner tank and the compressor compartment, and is equipped with a water-absorbing component inside; The first auxiliary air duct connects the main air duct and the compressor compartment, and a first valve is installed at the connection between the first auxiliary air duct and the main air duct; The second auxiliary air duct connects the main air duct and the inner liner, and a second valve is provided at the connection between the second auxiliary air duct and the main air duct; The first valve and the second valve are located on both sides of the water suction component, so as to change the direction of the airflow passing through the water suction component in the main air duct by controlling the position of the first valve and the second valve.

2. The freezer according to claim 1, characterized in that, With the first valve in the first position, the main air duct, the first auxiliary air duct, and the compressor compartment are connected, and the airflow circulates within the main air duct, the first auxiliary air duct, and the compressor compartment; and the second valve is in the position of closing the second auxiliary air duct.

3. The freezer according to claim 1, characterized in that, With the first valve in the second position, the main air duct is connected to the inner liner, and the airflow in the main air duct flows into the inner liner; the second valve opens the second auxiliary air duct and blocks the airflow from the compressor chamber in the main air duct.

4. The freezer according to claim 1, characterized in that, The inner liner has a first connecting port for connecting to the main air duct and a second connecting port for connecting to the second auxiliary air duct. The first connection port is located above the second connection port.

5. The refrigerator according to claim 4, wherein Also includes: The evaporator compartment is located inside the inner liner; The second connecting port is located around the return air vent of the evaporator compartment.

6. The freezer according to claim 1, characterized in that, The first and second auxiliary air ducts are located on either side of the main air duct.

7. The refrigerator according to claim 1, wherein Also includes: The fan assembly is located inside the main air duct to ensure that the airflow in the main air duct flows in a specified direction.

8. The freezer according to claim 7, characterized in that, The fan assembly is located above the water intake component and below the first valve.

9. The refrigerator according to claim 1, wherein Also includes: The filter screen is located inside the main air duct and below the second valve.

10. The refrigerator according to any one of claims 1 to 9, characterized in that, Also includes: The storage basket is located inside the inner liner, and the side wall has a ventilation opening; The ventilation section of the storage basket is connected to the main air duct through the inner liner, so that the airflow in the main air duct flows into the storage basket.

11. A method for controlling humidity in a refrigerator storage basket, characterized by, The method comprises: a freezer as described in any one of claims 1 to 10; When the freezer is in defrost mode, if the position condition of the first valve and the first preset time condition are met at the same time, the main air duct and the first auxiliary air duct are connected so that the water absorption component can store moisture. When the freezer is in non-defrost mode or the process of storing moisture in the water absorption component is not in progress, the humidity in the storage basket is detected. Based on the comparison between the current humidity value and the preset humidity value, the position of the second valve is switched to control the connection between the main air duct and the second auxiliary air duct.

12. The method of claim 11, wherein, The position conditions and the first preset time conditions of the first valve control the connection between the main air duct and the first auxiliary air duct, including: When the first valve is in the first position and the time interval between the last time the water absorption element was not in the moisture storage process is greater than or equal to the preset time T1, the first valve is controlled to be in the first position so that the main air duct and the first auxiliary air duct are connected and the water absorption element stores moisture.

13. The method of claim 11, wherein, The freezer also includes: The method also includes: If the freezer is detected to be in defrost mode but does not meet the first preset time condition, it is determined that the defrost mode has been entered for a preset time T2, and the fan assembly is controlled to start.

14. The method of claim 11, wherein, When the freezer is in non-defrost mode or the moisture absorption element is not being stored, the humidity inside the storage basket is detected. Based on the comparison between the current humidity value and the preset humidity value, the position of the second valve is switched to control the connection between the main air duct and the second auxiliary air duct, including: When the current humidity value is lower than the preset humidity value, the first valve and the second valve are switched to connect the main air duct and the second auxiliary air duct, so that the air in the second auxiliary air duct passes through the water absorption component in the main air duct to humidify the storage basket.

15. The method according to claim 14, characterized in that, When the freezer is in non-defrost mode or the moisture absorption element is not being stored, the humidity in the storage basket is detected. Based on the comparison between the current humidity value and the preset humidity value, the position of the second valve is switched to control the connection between the main air duct and the second auxiliary air duct. This also includes: When the current humidity value is greater than or equal to the preset humidity value, the second valve is controlled to the second position to disconnect the air path between the main air duct and the second auxiliary air duct.

16. The method according to claim 11, characterized in that, The connection between the main air duct and the first secondary air duct also includes: controlling the start of the fan assembly; and / or... The connection between the main air duct and the second auxiliary air duct also includes: controlling the start of the fan assembly.

17. The method of claim 16, wherein, The storage basket is equipped with a humidity sensor to monitor the humidity inside the basket and trigger the switching of the first valve and the second valve, as well as the opening and closing of the fan assembly.

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