Refrigerator and dehumidification method therefor

Abstract

The present disclosure relates to a refrigerator and a dehumidification method therefor. The refrigerator comprises a refrigerator body (1), a refrigerator door, a first detection device, a second measurement device and an adjustment device. The refrigerator body (1) is used for storing articles. The refrigerator door is openably and closably arranged on the refrigerator body (1). The first detection device is configured to detect whether an opening action is performed on the refrigerator door. The second measurement device is configured to measure a target value of the working temperature in the refrigerator body (1). The adjustment device is in signal connection with the first detection device and the second measurement device, and is configured to determine a humidity adjustment target on the basis of whether an opening action is performed on the refrigerator door, which is detected by the first detection device, and the target value of the working temperature in the refrigerator body (1), which is measured by the second measurement device. The present disclosure can effectively improve the dehumidification effect, thus reduce frosting, and improving the heat exchange efficiency and operating reliability of refrigerators.

Description

Refrigerator and dehumidification method thereof

[0001] Cross-references to related applications

[0002] This disclosure is based on and claims priority to a Chinese application with application number 202410092271.8 and filing date January 22, 2024. The disclosure content of the Chinese application is hereby introduced into this disclosure as a whole. Technical Field

[0003] The present disclosure relates to the field of refrigeration technology, and in particular to a refrigerator and a dehumidification method thereof. Background Art

[0004] Currently, refrigerators with conventional direct-cooling heat exchange compartments on the market have relatively low surface temperatures and no air circulation system within the compartments. Frequent door opening and closing can increase humidity within the compartments, leading to frost formation due to the accumulation of low-temperature water vapor on the heat exchange surfaces. The long-term accumulation of frost not only affects the cooling and heat exchange performance of the compartments but also poses long-term operational reliability issues. Therefore, it is necessary to improve the dehumidification performance of refrigerators and reduce frost formation.

[0005] It should be noted that the information disclosed in the background section of this disclosure is intended solely to enhance understanding of the overall background of this disclosure and should not be construed as an admission or any form of implication that such information constitutes prior art already known to those skilled in the art. The foregoing statements are intended solely to provide background information relevant to this application and do not necessarily constitute prior art. Summary of the Invention

[0006] The embodiments of the present disclosure provide a refrigerator and a dehumidification method thereof, which can effectively improve the dehumidification effect.

[0007] According to one aspect of the present disclosure, there is provided a refrigerator comprising:

[0008] Box, used for storing items;

[0009] A box door is openably and closably arranged on the box body;

[0010] The first detection device is configured to detect whether the door is opened;

[0011] A second detection device is configured to detect a target operating temperature value in the box; and

[0012] The regulating device is signal-connected to the first detecting device and the second detecting device. The regulating device is configured to determine the humidity regulating target based on whether the box door is opened as detected by the first detecting device and the operating temperature target value inside the box as detected by the second detecting device.

[0013] In some embodiments, the refrigerator further includes a humidity regulating structure, the regulating device is signal-connected to the humidity regulating structure, and the regulating device is configured to open the humidity regulating structure to perform humidity regulation after determining a humidity regulation target.

[0014] In some embodiments, the refrigerator also includes a storage chamber, a cooling air duct and a return air duct arranged in the box body. The storage chamber is used to store items, the cooling gas in the cooling air duct is used to cool the items, and the return air duct is used to discharge the gas after cooling the items.

[0015] In some embodiments, the humidity regulating structure includes a damper disposed on the return air duct, which allows water vapor in the box to enter the return air duct when the damper is in an open state.

[0016] In some embodiments, the humidity regulating structure further includes a first driving device, which is drivingly connected to the damper and configured to drive the damper to move relative to the return air duct so as to open or close the damper.

[0017] In some embodiments, the humidity regulating structure includes ventilation holes provided on a side wall of the cooling air duct, wherein the ventilation holes communicate with the cooling air duct and the storage chamber.

[0018] In some embodiments, the humidity regulating structure further includes a sealing plate and a second driving device, the second driving device is drivingly connected to the sealing plate, and the second driving device is configured to drive the sealing plate to move relative to the cooling air duct to open or close the ventilation hole.

[0019] In some embodiments, the regulating device is configured to determine the humidity regulating target according to the target working temperature value in the box when the first detecting device detects that the box door is opened.

[0020] In some embodiments, the target working temperature value in the box includes above 0°C, and the adjustment device is configured to determine the humidity adjustment target as the humidity in the box is less than or equal to a first preset value when the target working temperature value in the box is above 0°C.

[0021] In some embodiments, the target working temperature value inside the box includes 0°C and below, and the adjustment device is configured to determine the humidity adjustment target to be the humidity inside the box less than or equal to a second preset value when the target working temperature value inside the box is 0°C and below, wherein the second preset value is a humidity preset value determined based on the floating temperature value, and the floating temperature value is the sum of the temperature inside the box after the door is opened and closed and the preset temperature value.

[0022] In some embodiments, the refrigerator also includes a temperature detection device, which is configured to detect the temperature inside the box, and the working temperature target value inside the box includes -2℃~2℃. The adjustment device is configured to determine that the humidity adjustment target is that the humidity inside the box is less than or equal to a first preset value when the working temperature target value inside the box is -2℃~2℃ and the temperature inside the box is greater than 0℃; and when the working temperature target value inside the box is -2℃~2℃ and the temperature inside the box is less than or equal to 0℃, determine that the humidity adjustment target is that the humidity inside the box is less than or equal to a third preset value, wherein the third preset value is a humidity preset value determined based on the temperature difference between the temperature at the moment the door is opened and the temperature inside the box after the door is opened and closed.

[0023] In some embodiments, the refrigerator also includes a refrigeration component, which is configured to provide cooling gas for cooling items. The target working temperature values ​​inside the box include 0°C and below and -2°C to 2°C. The adjustment device is also configured to reduce the temperature inside the box by 1°C to 2°C when the refrigeration component is shut down when the target working temperature values ​​inside the box are 0°C and below and -2°C to 2°C.

[0024] In some embodiments, the refrigerator further includes a humidity detection device configured to detect the humidity inside the cabinet.

[0025] In some embodiments, the adjustment device is signal-connected to the humidity detection device, and the adjustment device is configured to determine whether humidity adjustment needs to be started based on the humidity recovery rate in the box when the first detection device does not detect that the door is opened, and to determine the humidity adjustment target based on the working temperature target value in the box when the judgment result is that humidity adjustment needs to be started.

[0026] According to another aspect of the present disclosure, a dehumidification method based on the above refrigerator is provided, comprising:

[0027] Check whether the door is open;

[0028] Detecting the target operating temperature in the chamber; and

[0029] The humidity adjustment target is determined according to whether the box door is opened as detected by the first detection device and the target working temperature value in the box as detected by the second detection device.

[0030] In some embodiments, the operation of determining the humidity adjustment target based on whether the door is opened as detected by the first detection device and the target operating temperature value in the box as detected by the second detection device includes:

[0031] When the first detection device detects that the door is opened, the humidity adjustment target is determined according to the target working temperature value in the box;

[0032] When the first detection device does not detect that the door is opened, whether humidity adjustment needs to be started is determined based on the humidity recovery rate in the box. When the judgment result is that humidity adjustment needs to be started, the humidity adjustment target is determined based on the working temperature target value in the box.

[0033] In some embodiments, when the first detection device detects that the door is opened, the operation of determining the humidity adjustment target according to the target working temperature value in the box includes:

[0034] When the target operating temperature in the box is above 0° C., the humidity adjustment target is determined to be that the humidity in the box is less than or equal to a first preset value;

[0035] When the target working temperature in the box is 0°C or below, the humidity adjustment target is determined to be the humidity in the box less than or equal to a second preset value, where the second preset value is a humidity preset value determined based on the floating temperature value, and the floating temperature value is the sum of the temperature in the box after the door is opened and closed and the preset temperature value.

[0036] In some embodiments, when the first detection device detects that the door is opened, the operation of determining the humidity adjustment target according to the target working temperature value in the box includes:

[0037] When the target working temperature value inside the box is -2℃~2℃, if the temperature inside the box is greater than 0℃, the humidity adjustment target is determined to be the humidity inside the box less than or equal to the first preset value; if the temperature inside the box is less than or equal to 0℃, the humidity adjustment target is determined to be the humidity inside the box less than or equal to the third preset value, where the third preset value is a humidity preset value determined based on the temperature difference between the temperature at the moment the box door is opened and the temperature inside the box after the box door is opened and closed.

[0038] Based on the above technical solution, the adjustment device in the embodiment of the present disclosure determines the humidity adjustment target based on whether the door is opened as detected by the first detection device and the operating temperature target value in the box as detected by the second detection device. The determined humidity adjustment target can be made more accurate, which is conducive to more accurate and effective adjustment of the humidity in the box, achieving better dehumidification effect, reducing frost in the box, solving the problem of secondary frost caused by accumulation of frosting and defrost water, and improving the heat exchange efficiency and operational reliability of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of this application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0040] FIG1 is a partial structural schematic diagram of some embodiments of the refrigerator provided by the present disclosure.

[0041] FIG2 is a schematic diagram showing a partial structure of some embodiments of the refrigerator provided by the present disclosure from another angle.

[0042] FIG3 is a flow chart of some embodiments of the refrigerator dehumidification method provided by the present disclosure.

[0043] In the figure: 1. Box body; 2. Storage chamber; 3. Cooling air duct; 4. Air door; 5. Ventilation hole; 6. Humidity detection device; 7. Cooling plate. DETAILED DESCRIPTION

[0044] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present disclosure.

[0045] In the description of the present disclosure, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present disclosure.

[0046] Referring to Figures 1 to 3, in some embodiments of the refrigerator provided by the present disclosure, the refrigerator includes a cabinet 1, a cabinet door, a first detection device, a second detection device and an adjustment device. The cabinet 1 is used to store items, and the cabinet door can be opened and closed on the cabinet 1. The first detection device is configured to detect whether the cabinet door is opened, and the second detection device is configured to detect the target working temperature in the cabinet 1. The adjustment device is signal-connected with the first detection device and the second detection device. The adjustment device is configured to determine the humidity adjustment target based on whether the cabinet door is opened as detected by the first detection device and the target working temperature in the cabinet 1 as detected by the second detection device.

[0047] In the above embodiment, the regulating device determines the humidity regulation target based on whether the door is opened as detected by the first detection device and the operating temperature target value in the cabinet 1 as detected by the second detection device. This can make the determined humidity regulation target more accurate, which is conducive to more accurate and effective regulation of the humidity in the cabinet 1, achieving better dehumidification effect, reducing frost in the cabinet 1, solving the problem of secondary frost caused by accumulation of frosting and defrost water, and improving the heat exchange efficiency and operational reliability of the refrigerator.

[0048] Moreover, different humidity adjustment targets are determined according to whether the door is opened and the target working temperature in the cabinet 1. The humidity adjustment can correspond to different adjustment targets under different conditions, so that the humidity adjustment can adapt to the current working state of the refrigerator, which is conducive to improving the adaptability of the humidity, improving the humidity adjustment effect, and meeting the different needs of different scenarios.

[0049] In some embodiments, the refrigerator further includes a humidity regulating structure, the regulating device is signal-connected to the humidity regulating structure, and the regulating device is configured to open the humidity regulating structure to perform humidity regulation after determining a humidity regulation target.

[0050] By setting the humidity adjustment structure, humidity adjustment can be achieved by opening the humidity adjustment structure after determining the humidity adjustment target.

[0051] There are many options for the specific implementation of the humidity control structure.

[0052] In some embodiments, the refrigerator also includes a storage chamber 2, a cooling air duct 3 and a return air duct arranged in the box body 1. The storage chamber 2 is used to store items, the cooling gas in the cooling air duct 3 is used to cool the items, and the return air duct is used to discharge the gas after cooling the items.

[0053] Cooling air flows through the cooling air duct 3 , and the cooling air cools down the items in the storage chamber 2 . The cooled air is then discharged through the return air duct.

[0054] In some embodiments, the refrigerator further includes a refrigeration component, which is used to cool the gas, and the cooled gas enters the cooling air duct 3.

[0055] As shown in Figure 2, the refrigerator also includes a cold conduction plate 7 arranged between the cooling air duct 3 and the storage chamber 2. The cooling gas is blown toward the cold conduction plate 7. After the cold conduction plate 7 is cooled, it exchanges heat with the items in the storage chamber 2 to achieve the effect of cooling the items.

[0056] In some embodiments, the humidity regulating structure includes a damper 4 provided on the return air duct. When the damper 4 is in an open state, the water vapor in the box 1 enters the return air duct.

[0057] By setting a damper 4 on the return air duct, after opening the damper 4, the rapid flow of return air in the return air duct will form a negative pressure in the return air duct. Therefore, under the action of the pressure difference, the water vapor in the box 1 can diffuse into the return air duct, thereby achieving the effect of dehumidifying the box 1.

[0058] In some embodiments, the temperature of the return air in the return air duct is lower than the temperature of the gas in the box 1, which can enhance the dehumidification effect.

[0059] In some embodiments, the humidity regulating structure further includes a first driving device, which is drivingly connected to the damper 4 and is configured to drive the damper 4 to move relative to the return air duct so that the damper 4 is opened or closed.

[0060] By providing the first driving device, the damper 4 can be driven to move relative to the return air duct, thereby realizing the opening or closing of the damper 4.

[0061] In some embodiments, the first driving device may be configured to drive the damper 4 to rotate relative to the return air duct, so as to open or close the damper 4 by rotation.

[0062] In other embodiments, the first driving device may be configured to drive the damper 4 to translate relative to the return air duct, so as to open or close the damper 4 by moving it up and down or left and right.

[0063] The first driving device can be an oil cylinder, an air cylinder or a motor.

[0064] By providing the first driving device, the adjusting device can realize the opening and closing of the damper 4 by adjusting the first driving device.

[0065] In some embodiments, the humidity adjustment structure includes ventilation holes 5 provided on the side wall of the cooling air duct 3 , and the ventilation holes 5 connect the cooling air duct 3 and the storage chamber 2 .

[0066] By arranging ventilation holes 5 on the side wall of the cooling air duct 3, the cooling air duct 3 and the storage chamber 2 can be connected when the ventilation holes 5 are opened, so that the cooling gas in the cooling air duct 3 can enter the storage chamber 2 through the ventilation holes 5, thereby reducing the humidity in the storage chamber 2.

[0067] By providing the ventilation holes 5, cooling gas is introduced into the storage chamber 2, thereby achieving the effect of induced dehumidification.

[0068] In some embodiments, the humidity regulating structure further includes a sealing plate and a second driving device, the second driving device is drivingly connected to the sealing plate, and the second driving device is configured to drive the sealing plate to move relative to the cooling air duct 3 to open or close the ventilation hole 5.

[0069] By providing the sealing plate and the second driving device, the sealing plate can be driven to move by the second driving device to realize opening or closing of the ventilation hole 5 .

[0070] In some embodiments, the second driving device may be configured to drive the sealing plate to rotate relative to the cooling air duct 3 , so as to open or close the ventilation holes 5 by rotation.

[0071] In other embodiments, the second driving device may be configured to drive the sealing plate to translate relative to the cooling air duct 3 so as to open or close the ventilation holes 5 by moving them up and down or left and right.

[0072] The second driving device can be an oil cylinder, an air cylinder or a motor.

[0073] By providing the second driving device, the adjusting device can realize the opening and closing of the ventilation hole 5 by adjusting the second driving device.

[0074] The shape of the ventilation hole 5 can be circular, square or other shapes.

[0075] The flow area of ​​the ventilation holes 5 is constructed to be able to adjust the humidity in the box body 1 without affecting the moisture content of the items in the box body 1, preventing the cooling gas from taking away moisture on the surface of the items and affecting the quality of the items.

[0076] In some embodiments, the regulating device is configured to determine the humidity regulating target according to the target working temperature value in the box body 1 when the first detecting device detects that the box door is opened.

[0077] In some embodiments, the target working temperature value in the box 1 includes above 0°C. At this time, the box 1 can be used to store fruits and vegetables. The adjustment device is configured to determine the humidity adjustment target to be less than or equal to the first preset value when the target working temperature value in the box 1 is above 0°C.

[0078] In some embodiments, the first preset value can be 70%. Controlling the humidity of fruits and vegetables within 70% can effectively maintain the freshness of fruits and vegetables and ensure the moisture content of fruits and vegetables. At the same time, it can effectively reduce frost in the box 1 and improve the heat exchange efficiency and operational reliability of the refrigerator.

[0079] In some embodiments, the working temperature target value in the box 1 includes 0°C and below. At this time, the box 1 can be used to store fresh meat items. The adjustment device is configured to determine the humidity adjustment target to be less than or equal to a second preset value when the working temperature target value in the box 1 is 0°C and below, wherein the second preset value is a humidity preset value determined according to the floating temperature value, and the floating temperature value is the sum of the temperature in the box 1 after the door is opened and closed and the preset temperature value.

[0080] By setting the second preset value to the humidity preset value determined according to the floating temperature value, the size of the humidity adjustment target value can be appropriately reduced, thereby effectively avoiding secondary frost or refreezing and ensuring the freezing quality of meat items.

[0081] There are many options for the specific implementation of determining the second preset value according to the floating temperature value.

[0082] In some embodiments, the preset temperature value is 5°C to 7°C, such as 5°C, 6°C and 7°C.

[0083] In some embodiments, the correspondence between the floating temperature value and the second preset value is set as follows:

[0084] When the floating temperature value T1 satisfies 0°C < T1 ≤ 1.5°C, the second preset value is 70%;

[0085] When the floating temperature value T1 satisfies 1.5°C < T1 ≤ 2.5°C, the second preset value is 60%;

[0086] When the floating temperature value T1 satisfies 2.5°C < T1 ≤ 6°C, the second preset value is 50%;

[0087] When the floating temperature value T1 satisfies T1 > 6°C, the second preset value is 40%.

[0088] In some embodiments, the refrigerator further includes a temperature detection device configured to detect the temperature inside the cabinet 1. The target working temperature inside the cabinet 1 includes a range of ±0°C (such as -2°C to 2°C). At this time, the cabinet 1 can be used to store seafood items. The adjustment device is configured to determine that the humidity adjustment target is that the humidity inside the cabinet 1 is less than or equal to the first preset value when the target working temperature inside the cabinet 1 is within the range of ±0°C (such as -2°C to 2°C) and the temperature inside the cabinet 1 is greater than 0°C; and to determine that the humidity adjustment target is that the humidity inside the cabinet 1 is less than or equal to the third preset value when the target working temperature inside the cabinet 1 is within the range of ±0°C (such as -2°C to 2°C) and the temperature inside the cabinet 1 is less than or equal to 0°C, where the third preset value is a humidity preset value determined based on the temperature difference between the temperature at the moment the cabinet door is opened and the temperature inside the cabinet 1 after the cabinet door is opened and then closed.

[0089] In this embodiment, the target working temperature inside the cabinet 1 includes a range of ±0°C (such as -1°C to 1°C or -2°C to 2°C). According to whether the actual temperature inside the cabinet 1 is greater than 0°C, there are two humidity adjustment methods, which can achieve more accurate and targeted humidity adjustment with better effects.

[0090] In this embodiment, the first preset value can be 70%.

[0091] By setting the third preset value as a humidity preset value determined based on the temperature difference between the temperature at the moment the cabinet door is opened and the temperature inside the cabinet 1 after the cabinet door is opened and then closed, a more accurate humidity adjustment target adapted to the actual operating conditions inside the cabinet 1 can be determined, thereby effectively improving the dehumidification effect and ensuring the refrigeration quality of seafood items.

[0092] Among them, there are various choices for the specific implementation method of determining the third preset value based on the temperature difference between the temperature at the moment the cabinet door is opened and the temperature inside the cabinet 1 after the cabinet door is opened and then closed.

[0093] In some embodiments, the correspondence between the temperature difference between the temperature at the moment when the cabinet door is opened and the temperature inside the cabinet 1 after the cabinet door is opened and then closed and a third preset value is set as follows:

[0094] When the temperature difference T2 satisfies 0°C < T2 ≤ 0.5°C, the third preset value is 70%;

[0095] When the temperature difference T2 satisfies 0.5°C < T2 ≤ 1.5°C, the third preset value is 60%;

[0096] When the temperature difference T2 satisfies 1.5°C < T2 ≤ 5°C, the third preset value is 50%;

[0097] When the temperature difference T2 satisfies T2 > 5°C, the third preset value is 40%.

[0098] Wherein, T2 = the temperature T_closed inside the cabinet 1 after the cabinet door is opened and then closed - the temperature T_opened at the moment when the cabinet door is opened.

[0099] In some embodiments, the refrigerator further includes a refrigeration component, the refrigeration component is configured to provide cooling gas for cooling items, the target value of the working temperature inside the cabinet 1 includes 0°C and below and -2°C to 2°C, and the regulating device is further configured to lower the temperature inside the cabinet 1 by 1°C to 2°C when the refrigeration component stops operating when the target value of the working temperature inside the cabinet 1 is 0°C and below and -2°C to 2°C.

[0100] By lowering the temperature inside the cabinet 1 when the refrigeration component stops operating, the temperature inside the cabinet 1 can be made lower when the refrigeration component stops operating, which is more conducive to humidity regulation. Moreover, after the stop temperature of the refrigeration component is lowered, the refrigeration time of the refrigeration component will become longer, which is more beneficial to the dehumidification effect.

[0101] In some embodiments, the refrigerator further includes a humidity detection device 6, and the humidity detection device 6 is configured to detect the humidity inside the cabinet 1.

[0102] By providing the humidity detection device 6, the humidity inside the cabinet 1 can be detected in real time, so as to determine a suitable regulation target according to the humidity level.

[0103] In some embodiments, the humidity detection device 6 is arranged at a position close to the air door 4, which is beneficial to improving the accuracy of humidity detection. The temperature detection device can also be arranged at a position close to the air door 4.

[0104] In some embodiments, the regulating device is in signal connection with the humidity detection device 6, and the regulating device is configured to determine whether to start humidity regulation according to the humidity recovery rate inside the cabinet 1 when the first detection device does not detect an opening action of the cabinet door, and to determine the humidity regulation target according to the target value of the working temperature inside the cabinet 1 when the determination result is that humidity regulation needs to be started.

[0105] When the door of the box does not open, that is, when the door of the box remains closed all the time, it is judged whether the humidity adjustment needs to be started by detecting the humidity rising rate in the box body 1. When the judgment result is that the humidity adjustment needs to be started, the adjustment device determines the humidity adjustment target according to the working temperature target value in the box body 1; when the judgment result is that the humidity adjustment does not need to be started, the air door 4 and the ventilation hole 5 remain closed.

[0106] Specifically, the operation of judging whether the humidity adjustment needs to be started can be to judge whether the humidity rising rate D in the box body 1 is greater than or equal to the preset rate D1. If D≥D1, it is judged that the humidity adjustment needs to be started; if D<D1, it is judged that the humidity adjustment does not need to be started.

[0107] As shown in FIG. 3, based on the refrigerator in the above embodiment, the present disclosure also provides a dehumidification method, including:

[0108] Detect whether the door of the box has an opening action;

[0109] Detect the working temperature target value in the box body 1; and

[0110] Determine the humidity adjustment target according to whether the door of the box has an opening action detected by the first detection device and the working temperature target value in the box body 1 detected by the second detection device.

[0111] In some embodiments, the operation of determining the humidity adjustment target according to whether the door of the box has an opening action detected by the first detection device and the working temperature target value in the box body 1 detected by the second detection device includes:

[0112] When the first detection device detects that the door of the box has an opening action, determine the humidity adjustment target according to the working temperature target value in the box body 1;

[0113] When the first detection device does not detect that the door of the box has an opening action, judge whether the humidity adjustment needs to be started according to the humidity rising rate in the box body 1. When the judgment result is that the humidity adjustment needs to be started, determine the humidity adjustment target according to the working temperature target value in the box body 1.

[0114] In some embodiments, when the first detection device detects that the door of the box has an opening action, the operation of determining the humidity adjustment target according to the working temperature target value in the box body 1 includes:

[0115] When the working temperature target value in the box body 1 is above 0°C, determine that the humidity adjustment target is that the humidity in the box body 1 is less than or equal to the first preset value;

[0116] When the target working temperature value in the box 1 is 0°C or below, the humidity adjustment target is determined to be the humidity in the box 1 less than or equal to a second preset value, wherein the second preset value is a humidity preset value determined according to the floating temperature value, and the floating temperature value is the sum of the temperature in the box 1 after the door is opened and closed and the preset temperature value, and the preset temperature value is 5°C to 7°C.

[0117] In some embodiments, when the first detection device detects that the door is opened, the operation of determining the humidity adjustment target according to the target working temperature value in the cabinet 1 includes:

[0118] When the operating temperature target value in the cabinet 1 is -2℃~2℃, if the temperature in the cabinet 1 is greater than 0℃, the humidity adjustment target is determined to be the humidity in the cabinet 1 less than or equal to the first preset value; if the temperature in the cabinet 1 is less than or equal to 0℃, the humidity adjustment target is determined to be the humidity in the cabinet 1 less than or equal to the third preset value, wherein the third preset value is a humidity preset value determined based on the temperature difference between the temperature at the moment the cabinet door is opened and the temperature in the cabinet 1 after the cabinet door is opened and closed.

[0119] As shown in FIG3 , in some embodiments, the dehumidification step of the refrigerator includes:

[0120] When the door is detected to be open, the current function control status of the cabinet 1 is immediately determined. If the target operating temperature value of the cabinet 1 is above 0°C, the functional area of ​​the cabinet 1 is the fruit and vegetable storage area Q1; if the target operating temperature value of the cabinet 1 is 0°C or below, the functional area of ​​the cabinet 1 is the fresh meat storage area Q2; if the target operating temperature value of the cabinet 1 fluctuates within 0°C (for example, -1°C to 1°C or -2°C to 2°C), the functional area of ​​the cabinet 1 is the seafood storage area Q3;

[0121] When the functional area in the box body 1 is Q1, the damper 4 and the ventilation hole 5 are opened until the humidity in the box body 1 satisfies d≤d1, and then the damper 4 and the ventilation hole 5 are closed.

[0122] When the functional area in the cabinet 1 is Q2, the temperature value T1 is detected (T1 = the temperature value in the cabinet 1 after closing the door + 6°C), and the second preset value d2 is determined based on the value of T1. At this time, the damper 4 and the ventilation hole 5 are opened, the shutdown temperature of the refrigeration component is lowered by 1°C to 2°C, and the cooling operation is performed until the current humidity in the cabinet 1 satisfies d≤d2. The damper 4 and the ventilation hole 5 are closed, and the temperature control point in the cabinet 1 is switched to the original set value for control operation;

[0123] When the functional area in the cabinet 1 is Q3, if the current temperature T in the cabinet 1 is greater than 0°C, the damper 4 and the vent 5 are opened until the current humidity in the cabinet 1 satisfies d≤d1, and the damper 4 and the vent 5 are closed; if the current temperature in the cabinet 1 is less than or equal to 0°C, the temperature difference T2 before and after the door is opened and closed is detected, and a third preset value d3 is determined based on the value of T2. At this time, the damper 4 and the vent 5 are opened, the shutdown temperature of the refrigeration component is lowered by 1°C to 2°C, and the cooling operation is performed until the current humidity in the cabinet 1 satisfies d≤d3. The damper 4 and the vent 5 are closed, and the temperature control point in the cabinet 1 is switched to the original set value for control operation;

[0124] When it is detected that the door is not opened, it is determined whether the humidity recovery rate D in the current cabinet 1 satisfies D≥D1. If so, the aforementioned humidity adjustment program is entered; if not, the damper 4 and the ventilation hole 5 remain closed until the refrigerator door is opened or the humidity recovery rate changes.

[0125] The disclosed embodiment detects the opening and closing conditions of the cabinet door and the working conditions inside the cabinet, and in combination with the temperature and humidity changes inside the cabinet, opens the damper and ventilation holes to make the humidity inside the cabinet lower than the preset value, thereby achieving an induced dehumidification effect at low temperature, solving problems such as excessive humidity inside the cabinet and easy frost on the wall due to frequent opening and closing of the door, and improving the heat exchange efficiency and operational reliability of the refrigerator.

[0126] The above description of the various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced with each other and will not be repeated herein for the sake of brevity.

[0127] Those skilled in the art will understand that, in the above-mentioned method of a specific embodiment, the writing order of each step does not mean a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of each step should be determined by its function and possible internal logic.

[0128] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and not to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that without departing from the principles of the present disclosure, the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents. These modifications and equivalent replacements should all be included in the scope of the technical solutions claimed for protection in the present disclosure.

Claims

1. A refrigerator, comprising: A cabinet (1) for storing items; A door, which is disposed on the cabinet (1) in an openable and closable manner; A first detection device configured to detect whether an opening action of the door occurs; A second detection device configured to detect the target value of the operating temperature inside the cabinet (1); And An adjustment device, which is in signal connection with the first detection device and the second detection device. The adjustment device is configured to determine a humidity adjustment target according to whether the opening action of the door detected by the first detection device and the target value of the operating temperature inside the cabinet (1) detected by the second detection device.

2. The refrigerator according to claim 1, further comprising a humidity adjustment structure. The adjustment device is in signal connection with the humidity adjustment structure, and the adjustment device is configured to open the humidity adjustment structure for humidity adjustment after determining the humidity adjustment target.

3. The refrigerator according to claim 2, further comprising a storage chamber (2), a cooling air duct (3) and a return air duct provided inside the cabinet (1). The storage chamber (2) is used for storing items, the cooling gas in the cooling air duct (3) is used to cool the items, and the return air duct is used to discharge the gas after cooling the items.

4. The refrigerator according to claim 3, wherein, The humidity adjustment structure includes a damper (4) provided on the return air duct. When the damper (4) is in an open state, water vapor inside the cabinet (1) is allowed to enter the return air duct.

5. The refrigerator according to claim 4, wherein, The humidity adjustment structure further includes a first driving device, which is drivingly connected to the damper (4). The first driving device is configured to drive the damper (4) to move relative to the return air duct so that the damper (4) is opened or closed.

6. The refrigerator according to any one of claims 3 to 5, wherein, The humidity adjustment structure includes ventilation holes (5) provided on the side wall of the cooling air duct (3). The ventilation holes (5) communicate the cooling air duct (3) and the storage chamber (2).

7. The refrigerator according to claim 6, wherein, The humidity adjustment structure further includes a sealing plate and a second driving device, which is drivingly connected to the sealing plate. The second driving device is configured to drive the sealing plate to move relative to the cooling air duct (3) to open or close the ventilation holes (5).

8. The refrigerator according to any one of claims 1 to 7, wherein, The adjustment device is configured to determine the humidity adjustment target according to the target value of the operating temperature inside the cabinet (1) when the first detection device detects that the opening action of the door occurs.

9. The refrigerator according to claim 8, wherein, The target value of the operating temperature inside the cabinet (1) is above 0°C. The adjustment device is configured to determine that the humidity adjustment target is that the humidity inside the cabinet (1) is less than or equal to a first preset value when the target value of the operating temperature inside the cabinet (1) is above 0°C.

10. The refrigerator according to claim 8 or 9, wherein, The target value of the operating temperature inside the cabinet (1) includes 0 °C and below. The regulating device is configured to determine that the humidity regulation target is that the humidity inside the cabinet (1) is less than or equal to a second preset value when the target value of the operating temperature inside the cabinet (1) is 0 °C and below, where the second preset value is a humidity preset value determined according to the floating temperature value, and the floating temperature value is the sum of the temperature inside the cabinet (1) after the cabinet door is opened and then closed and the preset temperature value.

11. The refrigerator according to any one of claims 8 to 10 further includes a temperature detection device configured to detect the temperature inside the cabinet (1). The target value of the operating temperature inside the cabinet (1) includes -2 °C to 2 °C. The regulating device is configured to determine that the humidity regulation target is that the humidity inside the cabinet (1) is less than or equal to a first preset value when the target value of the operating temperature inside the cabinet (1) is -2 °C to 2 °C and the temperature inside the cabinet (1) is greater than 0 °C; and to determine that the humidity regulation target is that the humidity inside the cabinet (1) is less than or equal to a third preset value when the target value of the operating temperature inside the cabinet (1) is -2 °C to 2 °C and the temperature inside the cabinet (1) is less than or equal to 0 °C, where the third preset value is a humidity preset value determined according to the temperature difference between the temperature at the moment the cabinet door is opened and the temperature inside the cabinet (1) after the cabinet door is opened and then closed.

12. The refrigerator according to any one of claims 8 to 11 further includes a refrigeration assembly configured to provide cooling gas for cooling the articles. The target value of the operating temperature inside the cabinet (1) includes 0 °C and below and -2 °C to 2 °C. The regulating device is further configured to cause the refrigeration assembly to lower the temperature inside the cabinet (1) by 1 °C to 2 °C when the refrigeration assembly stops operating when the target value of the operating temperature inside the cabinet (1) is 0 °C and below and -2 °C to 2 °C.

13. The refrigerator according to any one of claims 1 to 12 further includes a humidity detection device (6) configured to detect the humidity inside the cabinet (1).

14. The refrigerator according to claim 13, wherein, The regulating device is in signal connection with the humidity detection device (6). The regulating device is configured to determine whether it is necessary to start humidity regulation according to the humidity recovery rate inside the cabinet (1) when the first detection device does not detect an opening action of the cabinet door, and to determine the humidity regulation target according to the target value of the operating temperature inside the cabinet (1) when the determination result is that it is necessary to start humidity regulation.

15. A dehumidification method based on the refrigerator according to any one of claims 1 to 14, comprising: detecting whether an opening action of the cabinet door occurs; detecting the target value of the operating temperature inside the cabinet (1); and determining the humidity regulation target according to whether the opening action of the cabinet door detected by the first detection device and the target value of the operating temperature inside the cabinet (1) detected by the second detection device.

16. The dehumidification method according to claim 15, wherein, The operation of determining the humidity adjustment target based on whether the cabinet door has an opening action detected by the first detection device and the working temperature target value inside the cabinet (1) detected by the second detection device includes: When the first detection device detects that the cabinet door has an opening action, determine the humidity adjustment target according to the working temperature target value inside the cabinet (1); When the first detection device does not detect that the cabinet door has an opening action, judge whether it is necessary to start humidity adjustment according to the humidity rise rate inside the cabinet (1). When the judgment result is that it is necessary to start humidity adjustment, determine the humidity adjustment target according to the working temperature target value inside the cabinet (1).

17. The dehumidification method according to claim 16, wherein, When the first detection device detects that the cabinet door has an opening action, the operation of determining the humidity adjustment target according to the working temperature target value inside the cabinet (1) includes: When the working temperature target value inside the cabinet (1) is above 0°C, determine that the humidity adjustment target is that the humidity inside the cabinet (1) is less than or equal to a first preset value; When the working temperature target value inside the cabinet (1) is 0°C or below, determine that the humidity adjustment target is that the humidity inside the cabinet (1) is less than or equal to a second preset value, where the second preset value is a humidity preset value determined according to the floating temperature value, and the floating temperature value is the sum of the temperature inside the cabinet (1) after the cabinet door is opened and then closed and the preset temperature value.

18. The dehumidification method according to claim 16, wherein, When the first detection device detects that the cabinet door has an opening action, the operation of determining the humidity adjustment target according to the working temperature target value inside the cabinet (1) includes: When the working temperature target value inside the cabinet (1) is -2°C to 2°C, if the temperature inside the cabinet (1) is greater than 0°C, then determine that the humidity adjustment target is that the humidity inside the cabinet (1) is less than or equal to a first preset value; if the temperature inside the cabinet (1) is less than or equal to 0°C, then determine that the humidity adjustment target is that the humidity inside the cabinet (1) is less than or equal to a third preset value, where the third preset value is a humidity preset value determined according to the temperature difference between the temperature at the moment when the cabinet door is opened and the temperature inside the cabinet (1) after the cabinet door is opened and then closed.

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