Refrigerator

Abstract

The embodiment of the invention provides a refrigerator, and belongs to the technical field of household appliances. A control module of the refrigerator is configured to control a communication valve to be opened when any vacuum drawer is switched from the extraction state to the sealing state, so that the containing space of the vacuum drawer switched from the extraction state to the sealing state communicates with the containing space of the vacuum drawer in the sealing state; controlling an air extractor communicated with the vacuum drawer which is switched from the extraction state to the sealing state to extract air from the accommodating space; and when the vacuum drawer converted from the extraction state to the sealing state reaches the first preset air pressure, the communication valve is controlled to be closed. Therefore, the drawer switched from the extraction state to the sealing state quickly reaches the preset air pressure and temperature, the total vacuumizing time is shortened, a user is prevented from waiting for a long time, extra time-consuming temperature adjustment is not needed, and the drawer directly enters a stable fresh-keeping state.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of household appliances, and in particular to a refrigerator. BACKGROUND

[0002] The rated idle flow of the vacuum pump currently used in the vacuum drawer of the refrigerator is usually in the range of 1.1-3L, and the maximum vacuum pressure is between 40Kpa-65kpa. When the volume of the refrigerator is small, this parameter configuration can basically meet the vacuum extraction demand of the vacuum drawer. However, as the storage demand of the refrigerator increases, the volume of the refrigerator also increases, and the volume of the vacuum preservation drawer corresponding to the refrigerator also increases. In the case where the parameters of the vacuum pump are not significantly optimized, the increase in the volume of the vacuum drawer results in a significant increase in the amount of gas that needs to be extracted. The rated idle flow and the maximum vacuum pressure of the existing vacuum pump are difficult to quickly cope with the extraction of a large amount of gas in the vacuum drawer after the volume increases, resulting in a significant prolongation of the time required for the vacuum extraction process. The long vacuum extraction time not only makes the user have to wait for a long time to achieve vacuum preservation of food, affecting the use experience, but also may cause the food to deteriorate in advance during the waiting process because the vacuum state is not formed in time, and thus the vacuum preservation function cannot be fully played, which is a major obstacle to the development of the current refrigerator vacuum drawer technology. SUMMARY Embodiments of the present application provide a refrigerator and a control method of the refrigerator, which can solve the technical problems.

[0003] In a first aspect, embodiments of the present application provide a refrigerator, comprising: a cabinet, which is internally provided with a plurality of compartments; a plurality of vacuum drawers, which are arranged in the compartments, and each of the vacuum drawers is provided with a containing space; a plurality of air extraction devices, which are connected to the vacuum drawers in one-to-one correspondence; a communication valve, which is arranged between any two of the vacuum drawers, and is used to communicate the containing spaces of any two of the vacuum drawers; a control module, which is configured to control the communication valve to open when any of the vacuum drawers is switched from a self-extracted state to a sealed state, so as to communicate the containing space of the vacuum drawer switched from the self-extracted state to the sealed state with the containing space of the vacuum drawer in the sealed state; control the air extraction device in communication with the vacuum drawer switched from the self-extracted state to the sealed state to extract air from the containing space; when the vacuum drawer switched from the self-extracted state to the sealed state reaches a first preset air pressure, control the communication valve to close.

[0004] In the above scheme, when either vacuum drawer transitions from the extended state to the sealed state, the control module opens the connecting valve to connect the two drawers, and simultaneously activates the corresponding vacuuming device to evacuate air. The two vacuum drawers' compartments are interconnected, allowing the air pressure inside to quickly reach equilibrium. At this point, the vacuuming device can simultaneously evacuate both connected drawer spaces. Compared to evacuating a single drawer independently, utilizing the interconnected space distributes the evacuation load, accelerating the overall gas extraction speed. This allows the drawers to quickly reach the preset air pressure and temperature after being opened and then closed, significantly shortening the total vacuuming time and avoiding prolonged waiting for the user. When the connecting valve is open, the compartments of the two vacuum drawers are connected, not only achieving rapid air pressure equilibrium but also allowing for slow airflow within the drawers. This facilitates natural heat transfer from the high-temperature drawer to the low-temperature drawer, gradually reducing the temperature difference and bringing the temperatures of the two vacuum drawers to similar levels. No additional time is required for temperature adjustment, allowing them to directly enter a stable preservation state.

[0005] In some possible implementations, each of the multiple vacuum drawers includes a first temperature mode and a second temperature mode, wherein the temperature of the first temperature mode is lower than the temperature of the second temperature mode.

[0006] In the above solution, multiple vacuum drawers are equipped with two temperature modes to achieve precise preservation of food categories, catering to the different storage temperature requirements of various foods. Users can flexibly set the temperature mode for each of the two drawers according to the type of food stored at one time, greatly improving the accuracy of preservation and achieving efficient use of the refrigerator's internal space and energy consumption, balancing practicality and economy.

[0007] In some possible implementations, a vacuum drawer that transitions from a withdrawn state to a sealed state is defined as a first vacuum drawer, a vacuum drawer connected to the first vacuum drawer via the connecting valve is defined as a second vacuum drawer, an air extraction device connected to the first vacuum drawer is defined as a first air extraction device, and an air extraction device connected to the second vacuum drawer is defined as a second air extraction device. The control module is also configured to: When the first vacuum drawer is in the first temperature mode and the second vacuum drawer is in the second temperature mode; when the first vacuum drawer reaches the first preset air pressure, the control module controls the connecting valve to close. The control module controls the first air extraction device to continue extracting air from the containment space of the first vacuum drawer, so that the first vacuum drawer reaches the second preset air pressure.

[0008] In the above scheme, when the first vacuum drawer reaches the first preset air pressure, the connecting valve is closed and the first suction device is controlled to continue suctioning air to the second preset air pressure. This allows the first vacuum drawer to achieve a higher vacuum level on top of its low temperature, avoiding mutual interference between drawers with different temperature modes and ensuring their respective operational stability. Closing the connecting valve first and then allowing the first suction device to work independently can block airflow between the two drawers, ensuring that the low-temperature environment of the first drawer is not disturbed. It also allows the second drawer to maintain stable operation at the first preset air pressure adapted to its temperature mode, avoiding temperature instability caused by air pressure fluctuations. This allows the two drawers to independently and efficiently preserve food at their respective temperatures and vacuum levels, avoiding the increased suction load caused by connecting the two drawers.

[0009] In some possible implementations, a vacuum drawer that transitions from a withdrawn state to a sealed state is defined as a first vacuum drawer, a vacuum drawer connected to the first vacuum drawer via the connecting valve is defined as a second vacuum drawer, an air extraction device connected to the first vacuum drawer is defined as a first air extraction device, and an air extraction device connected to the second vacuum drawer is defined as a second air extraction device. The control module is also configured to: When the first vacuum drawer is in the second temperature mode, the second vacuum drawer is in the first temperature mode; When the first vacuum drawer reaches the first preset air pressure, the control module controls the connecting valve to close; The control module controls the first vacuum device to stop vacuuming, and controls the second vacuum device to continue vacuuming from the containment space of the second vacuum drawer, so that the second vacuum drawer reaches the second preset air pressure.

[0010] In the above solution, the deep vacuum requirements of the low-temperature drawer can be precisely matched, enhancing the preservation effect of low-temperature food. When the connecting valve is closed, the second suction device continues to evacuate the second vacuum drawer independently to the second preset air pressure. By adding a vacuum environment on top of the low temperature, the second suction device focuses on evacuating the second vacuum drawer without sharing the suction load, thus reaching the second preset air pressure more quickly and shortening the deep vacuuming time of the low-temperature drawer. Meanwhile, the first vacuum drawer is in the second temperature mode (relatively high temperature), storing items with lower requirements for vacuum or temperature. The first preset air pressure is sufficient to meet their preservation needs. At this time, the first suction device stops evacuating, which can avoid excessive vacuuming that could damage the cell walls of the food, ensuring the taste of the food, and reducing energy consumption.

[0011] In some possible implementations, the vacuum drawer that transitions from the withdrawn state to the sealed state is defined as the first vacuum drawer, the vacuum drawer connected to the first vacuum drawer via the connecting valve is defined as the second vacuum drawer, the air extraction device connected to the first vacuum drawer is defined as the first air extraction device, and the air extraction device connected to the second vacuum drawer is defined as the second air extraction device. The control module is also configured to: When both the first vacuum drawer and the second vacuum drawer are in the first temperature mode; When the first vacuum drawer reaches the first preset air pressure, the control module controls the connecting valve to close. The control module controls the first air extraction device to continue extracting air from the containing space of the first vacuum drawer so that the first vacuum drawer reaches the second preset air pressure; At the same time, the control module controls the second air extraction device to start, and controls the second air extraction device to continue to extract air from the containment space of the second vacuum drawer, so that the second vacuum drawer reaches the second preset air pressure.

[0012] In the above scheme, when both the first vacuum drawer and the second vacuum drawer are in the first temperature mode, after the first vacuum drawer reaches the first preset air pressure and the connecting valve is closed, the control module still drives the first suction device to continuously evacuate its containing space to reach the second preset air pressure. At the same time, the second suction device is turned on to evacuate the second vacuum drawer until it also reaches the second preset air pressure. This can significantly improve the evacuation efficiency of the two drawers, avoid the time wasted when the equipment enters a waiting state after a single drawer completes the initial evacuation, and allow the two drawers to complete the deep evacuation process in parallel. This effectively shortens the overall vacuuming time and ensures that both drawers eventually reach the second preset air pressure stably, thereby improving the overall operational stability and usability of the equipment.

[0013] In some possible implementations, the vacuum drawer that transitions from the withdrawn state to the sealed state is defined as the first vacuum drawer, the vacuum drawer connected to the first vacuum drawer via the connecting valve is defined as the second vacuum drawer, the air extraction device connected to the first vacuum drawer is defined as the first air extraction device, and the air extraction device connected to the second vacuum drawer is defined as the second air extraction device. The control module is also configured to: When both the first vacuum drawer and the second vacuum drawer are in the second temperature mode; When the first vacuum drawer reaches the first preset air pressure, the control module controls the connecting valve to close. The first air extraction device is controlled to stop working.

[0014] In the above scheme, when both the first vacuum drawer and the second vacuum drawer are in the second temperature mode, the control module adopts the configuration of closing the corresponding connecting valve and stopping the operation of the vacuum device when a single vacuum drawer reaches the first preset air pressure. This can accurately avoid the ineffective consumption of energy and hardware resources, reduce unnecessary power consumption, and also reduce the mechanical wear caused by the vacuum device running idle or redundantly for a long time, thus extending the service life of the core components of the equipment.

[0015] In some possible implementations, the refrigerator also includes a sterilization module; The control module is configured as follows: When the vacuum drawer is in a sealed state, obtain the current air pressure value of the vacuum drawer's containing space; When the current air pressure value is not higher than the first preset air pressure threshold, the sterilization module is controlled to release sterilizing ions into the containment space; during the process of the sterilization module releasing sterilizing ions, the air extraction device connected to the vacuum drawer is controlled to stop working.

[0016] In the above technical solution, when the vacuum drawer is sealed and the air pressure is not higher than the first preset threshold, the release of bactericidal ions allows them to diffuse more evenly in a closed low-pressure environment, improving the bactericidal effect; at the same time, the air extraction is paused to prevent the bactericidal ions from being drawn away, ensuring sufficient concentration. This not only uses vacuum to inhibit the reproduction of microorganisms, but also actively kills bacteria through bactericidal ions, providing dual protection for the safety and freshness of food storage, while also reducing energy waste and making sterilization more efficient.

[0017] In some possible implementations, the refrigerator also includes an odor removal module; The control module is configured as follows: When the vacuum drawer is in a sealed state, the gas concentration value of the containing space of the vacuum drawer is obtained; When the gas concentration value is not lower than the preset concentration threshold, the deodorizing module is controlled to release deodorizing ions into the containing space; during the process of the deodorizing module releasing deodorizing ions, the air extraction device connected to the vacuum drawer is controlled to stop working.

[0018] In the above technical solution, when the vacuum drawer is sealed and the gas concentration is not lower than the preset threshold, the deodorizing module is activated, which allows the deodorizing ions to react more fully with odor molecules in the sealed environment, improving the deodorizing efficiency. At the same time, pausing the air extraction operation can prevent the deodorizing ions from being directly extracted, ensuring that they maintain an effective concentration in the containment space. This dual effect slows down the rate of odor generation in food through the vacuum environment and actively eliminates existing odors with the help of deodorizing ions. It keeps the air inside the drawer fresh for a longer period of time, extends the food preservation period, and reduces unnecessary energy consumption and deodorizing material waste, thus improving the economic efficiency of use.

[0019] In some possible implementations, the refrigerator further includes: A switch feedback element is disposed between the vacuum drawer and the compartment, and is used to detect whether the vacuum drawer is in a sealed state. A pressure sensor is disposed within the receiving space of the vacuum drawer and is used to detect the air pressure within the receiving space. The control module is configured as follows: When the switch feedback device detects that the vacuum drawer is in a sealed state, it controls the air extraction device to extract air from the receiving space of the vacuum drawer; When the pressure sensor detects that the pressure in the containment space is not higher than the second preset air pressure threshold, it controls the input interface of the air extraction device to disconnect from the interface of the vacuum drawer to create a vacuum.

[0020] In the above technical solution, the sealing status of the vacuum drawer is accurately detected by the switch feedback device. The vacuum device is only connected and vacuumed after the seal is confirmed, which can avoid the ineffective energy consumption caused by vacuuming due to unsealed conditions. The pressure sensor can monitor the air pressure in the storage space in real time. When the target vacuum level is reached and does not exceed the second preset air pressure threshold, the connection between the vacuum device and the vacuum drawer is disconnected in time. This ensures the vacuum preservation environment required for food and prevents energy waste and equipment damage caused by excessive vacuuming, thereby improving the energy efficiency and reliability of the refrigerator. At the same time, the automated control process simplifies user operation and enhances the convenience of use.

[0021] Secondly, embodiments of this application provide a refrigerator, the refrigerator comprising: The container has several compartments inside; Multiple vacuum drawers are disposed within the compartment; each of the multiple vacuum drawers is provided with a receiving space. An air extraction device, the air extraction device comprising: Multiple air extraction devices, one of which is connected to one of the vacuum drawers; A connecting valve is provided between any two of the vacuum drawers, and the connecting valve is used to connect the accommodating spaces of any two of the vacuum drawers; The control module, wherein the control method includes: When both of the connected vacuum drawers are in the self-extraction state and transition to the sealed state, the connecting valve is opened to connect the two vacuum drawers, and the time point when the two vacuum drawers transition from the self-extraction state to the sealed state is obtained. The vacuum drawer connected to the air extraction device extracts air from the containing space after the time point when the control is in the self-extraction state to the sealed state. When the vacuum drawer reaches the first preset air pressure after the point at which it transitions from the withdrawn state to the sealed state, the connecting valve is controlled to close.

[0022] In the above technical solution, by connecting two vacuum drawers that simultaneously complete the sealing conversion and controlling only the vacuum device corresponding to the drawer that closes later, the energy consumption of vacuuming can be reduced and the vacuuming efficiency improved by utilizing air pressure balance. After the preset air pressure is reached, the connecting valve is closed to ensure that each drawer independently maintains the target vacuum level. By combining the temperature mode to further determine the vacuuming demand, the vacuuming operation can be precisely matched with the temperature preservation requirements of different foods. This avoids unnecessary vacuuming energy consumption and provides a suitable vacuum environment for foods under different temperature modes, achieving a dual improvement in energy saving and preservation accuracy. At the same time, it simplifies the control logic of multi-drawer collaborative operation and enhances the stability of system operation. Attached Figure Description

[0023] To more clearly illustrate the implementation methods in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a three-dimensional structural diagram of a refrigerator according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of two vacuum drawers according to an embodiment of this application; Figure 3 This is a schematic diagram of the control relationship of the control module in an embodiment of this application; Figure 4 This is a schematic diagram of the control module's control process of the air extraction device and the connecting valve when the first vacuum drawer is in a self-extracting state and transitions to a sealed state in an embodiment of this application. Figure 5 This is a schematic diagram of the control module's control process for the air extraction device when the first vacuum drawer is in the first temperature mode and the second vacuum drawer is in the second temperature mode, and the connecting valve is closed, in an embodiment of this application. Figure 6 This is a schematic diagram of the control module's control process for the air extraction device when the first vacuum drawer is in the second temperature mode and the second vacuum drawer is in the first temperature mode, and the connecting valve is closed, in an embodiment of this application. Figure 7 This is a schematic diagram of the control process of the control module on the vacuum device when both the first vacuum drawer and the second vacuum drawer are in the first temperature mode and the connecting valve is closed, as shown in the embodiment of this application. Figure 8This is a schematic diagram of the control process of the control module on the vacuum device when both the first vacuum drawer and the second vacuum drawer are in the first temperature mode and the connecting valve is closed, as shown in the embodiment of this application.

[0025] Explanation of reference numerals in the attached figures: 100. Box body; 200. Door body; 300. Vacuum drawer; 300a, First vacuum drawer; 300b, Second vacuum drawer; 400. Control module; 500, Connecting valve; 600. Air extraction device; 600a, First air extraction device; 600b, Second air extraction device; 700. Pressure sensing components; 800. Sterilization module; 900, Odor-eliminating module; 110. Switch feedback component. Detailed Implementation

[0026] As described in the background section, a refrigerator includes a cabinet and vacuum drawers disposed within the cabinet. These vacuum drawers create a negative pressure storage space to preserve food. With increasing user demand, the number of vacuum drawers and vacuum systems has increased. However, each vacuum drawer requires a separate vacuum pump or other vacuum system, increasing the refrigerator's cost. Furthermore, using two vacuum systems simultaneously to evacuate two sets of vacuum drawers to create a negative pressure state can easily cause resonance and noise issues. Moreover, as the capacity of vacuum drawers increases, existing vacuum pumps struggle to quickly handle the large volume of gas being extracted, significantly extending the vacuuming process. This prolonged vacuuming time not only forces users to wait a long time for vacuum preservation, impacting the user experience, but also risks premature spoilage of food due to the delayed vacuum formation, failing to fully realize the benefits of vacuum preservation.

[0027] In view of this, embodiments of this application provide a refrigerator and a control method for the refrigerator. The refrigerator includes at least two vacuum drawers, each with a receiving space. When the vacuum drawers are in a locked and sealed state, the receiving space is in a closed state. When the vacuum drawers are in a depressurized and withdrawn state, the receiving space is in an open state. The refrigerator also includes at least two suction devices, each connected to the receiving space of one of the two vacuum drawers, and the suction devices are used at least to evacuate air from the connected receiving spaces. A connecting valve is also provided between the at least two vacuum drawers, which is used to connect the receiving spaces of the two vacuum drawers for a partial period of time.

[0028] When a vacuum drawer transitions from its depressurized, withdrawn state to its locked, sealed state, a control valve connects the two vacuum drawers. Then, the pumping device on the side transitioning from the depressurized, withdrawn state to the locked, sealed state evacuates the space. Once the pressure in the space reaches the first preset pressure, the connection valve closes. When either vacuum drawer transitions from the withdrawn state to the sealed state, the control module opens the connection valve to connect the two drawers and simultaneously activates the corresponding pumping device. With the two vacuum drawers connected, the pressure in both drawers quickly reaches equilibrium. The pumping device can then simultaneously evacuate both connected drawer spaces. Compared to evacuating a single drawer independently, utilizing the connected space distributes the evacuation load, accelerating the overall gas extraction speed. This allows the drawers to quickly reach the preset pressure and temperature after opening and closing, significantly reducing the total vacuuming time and preventing long waiting times for the user. When the connecting valve is opened, the two vacuum drawers are connected, which not only enables rapid pressure balance but also allows the air inside the two vacuum drawers to flow slowly. This allows the heat from the high-temperature drawer to be naturally conducted to the low-temperature drawer, gradually reducing the temperature difference between the two and bringing the temperatures of the two vacuum drawers to a similar level. Without the need for additional time to adjust the temperature, the drawers can directly enter a stable preservation state.

[0029] To make the objectives, implementation methods and advantages of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments.

[0030] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0031] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a series of components is not necessarily limited to those that are explicitly listed, but may include other components that are not explicitly listed or that are inherent to such product or device.

[0032] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] Reference Figures 1-8 This application provides a refrigerator, referring to... Figure 1 The container includes a box 100, which includes a top and a bottom arranged along its length. The interior of the box 100 can form a storage room, which may include a refrigerator compartment and a freezer compartment, so as to use the refrigerator compartment and the freezer compartment to store food in cold or cold storage.

[0037] Reference Figure 1The refrigerator of this application may include a door 200. The door 200 may include a door liner and a door shell. The door 200 can be used to open and close the storage space. The door 200 can be used to make the cabinet 100 form a relatively closed space, thereby enabling the storage compartment of the cabinet 100 to maintain a relatively constant temperature and reduce the rate of temperature rise in the storage compartment.

[0038] In some possible implementations, the housing 100 defines a mounting cavity with an opening on one side. The mounting cavity may be located in a storage compartment, for example, in a refrigerator compartment, or it may be located in a freezer compartment.

[0039] For example, the refrigerator may include multiple vacuum drawers 300. Each vacuum drawer 300 is movably disposed within a mounting cavity. When the vacuum drawer 300 is in a sealed state, it is located within the mounting cavity and can create a negative pressure storage space, thereby enabling the storage of food items that need to be preserved. When the vacuum drawer 300 is in a withdrawn state, it is movable relative to the cabinet 100, allowing it to move into or out of the mounting cavity to facilitate the retrieval and placement of food items.

[0040] In some possible implementations, refer to Figure 2 The vacuum drawer 300 may include a main body, which may be a rectangular box structure with an opening on the top. An accommodating space is formed inside the main body, which may be a cavity structure with an opening on the top. Food can be placed into the accommodating space through the top opening of the accommodating space, or food can be taken out of the accommodating space through the top opening of the accommodating space.

[0041] For example, refer to Figure 2 The vacuum drawer 300 may include a drawer door. The drawer door may be located at the front end of the main body, and the drawer door may be used to push and pull the main body, thereby allowing the entire vacuum drawer 300 to be pulled out within the mounting cavity. When the entire vacuum drawer 300 is fully pushed into the mounting cavity, the drawer door can close the front opening of the receiving space, thereby forming a closed receiving space 230.

[0042] In some possible implementations, the refrigerator may include a refrigeration system capable of supplying cool air to the storage compartment. The refrigeration system includes a compressor, condenser, expansion valve, and evaporator. A refrigerant circulates among the components of the refrigeration system to achieve the cooling effect.

[0043] For example, the main flow process of refrigerant in various components is as follows: after passing through the compressor, the refrigerant enters the condenser, after passing through the condenser, it enters the expansion valve, after passing through the expansion valve, it enters the evaporator, and after passing through the evaporator, it flows back to the compressor. The compressor compresses the refrigerant gas at high temperature and pressure and then discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process. The expansion valve causes the high-temperature, high-pressure liquid refrigerant in the condenser to expand into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant that has expanded in the expansion valve and returns the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves a cooling effect by utilizing the latent heat of refrigerant evaporation or heat exchange with the material being cooled.

[0044] In some possible implementations, refer to Figure 2 The vacuum drawer 300 may include multiple air extraction devices 600, and the air extraction ports of the air extraction devices 600 may be connected to the receiving space. When the vacuum drawer 300 is in a sealed state, the vacuum drawer 300 is located in the mounting cavity, and the air extraction devices 600 can extract the air from the receiving space, so that the receiving space forms a negative pressure state.

[0045] The air extraction device 600 can be configured as a vacuum pump or similar structure to reduce the air content in the containment space. Compared to reducing the oxygen content in the containment space, reducing the air content in the containment space can reduce the air pressure in the containment space, thereby placing the food under negative pressure and further improving the preservation effect of the food.

[0046] In this application, at least two vacuum drawers 300 include a first vacuum drawer 300a and a second vacuum drawer 300b. Of course, in other embodiments, the number of vacuum drawers 300 can be different, and this application does not further limit this.

[0047] The first vacuum drawer 300a and the second vacuum drawer 300b are each provided with a receiving space. When the first vacuum drawer 300a is in a sealed state, the receiving space of the first vacuum drawer 300a is in a closed state; when the second vacuum drawer 300b is in a sealed state, the receiving space of the second vacuum drawer 300b is in a closed state; when the first vacuum drawer 300a is in a pulled-out state, the receiving space of the first vacuum drawer 300a is in a closed state; when the second vacuum drawer 300b is in a pulled-out state, the receiving space of the second vacuum drawer 300b is in a closed state.

[0048] Understandably, when the vacuum drawer 300 is in a sealed state, it is entirely located within the mounting cavity, creating a negative pressure space that is sealed, thus effectively preserving the food. When the vacuum drawer 300 is extended, it is movable relative to the cabinet 100, partially or entirely outside the mounting cavity, with the storage space connected to the outside, allowing for easy retrieval of food within the storage space.

[0049] In this application, reference is made to Figure 2 The vacuum device 600 may include a first vacuum device 600a and a second vacuum device 600b. The number of vacuum devices is the same as the number of vacuum drawers 300. The first vacuum device 600a is connected to the first vacuum drawer 300a, and the second vacuum device 600b is connected to the second vacuum drawer 300b. It can be understood that one vacuum device operates on one vacuum drawer 300. The vacuum device may be configured as a vacuum pump or similar structure.

[0050] In this application, reference is made to Figure 2 A connecting valve 500 can be installed between the two vacuum drawers 300. The first end of the connecting valve 500 is connected to the first vacuum drawer 300a, and the second end of the connecting valve 500 is connected to the second vacuum drawer 300b. The connecting valve 500 connects the accommodating space in the first vacuum drawer 300a with the accommodating space between the second vacuum drawer 300b.

[0051] The following describes the cooperation relationship between the vacuum device 600 and the vacuum drawers 300, taking as an example that the number of vacuum drawers 300 is set to two, and the two vacuum drawers 300 are respectively set as the first vacuum drawer 300a and the second vacuum drawer 300b.

[0052] In this application, reference is made to Figure 3 It also includes a control module 400, which can be connected to the air extraction device 600 and the connecting valve 500, thereby enabling the control module 400 to control the start and stop of the air extraction device 600 and the connecting valve 500.

[0053] In some possible embodiments, refer to Figure 4The control module 400 is configured such that: when any vacuum drawer 300 transitions from the withdrawn state to the sealed state, the control connecting valve 500 is opened, connecting the receiving space of the vacuum drawer 300 transitioning from the withdrawn state to the sealed state with the receiving space of the vacuum drawer 300 in the sealed state; then, the control pump 600 connected to the vacuum drawer 300 transitioning from the withdrawn state to the sealed state is used to extract air from the receiving space; when the vacuum drawer 300 reaches a first preset air pressure, the control valve is closed.

[0054] For example, when the first vacuum drawer 300a transitions from a self-extracting state to a sealed state, the control connection valve 500 opens, connecting the first vacuum drawer 300a to the second vacuum drawer 300b. Then, the first suction device 600a is controlled to evacuate air from the accommodating space of the first vacuum drawer 300a, creating a negative pressure state in the accommodating spaces of the two vacuum drawers 300. When the first vacuum drawer 300a reaches a first preset air pressure, the control connection valve 500 closes.

[0055] In some possible implementations, the refrigerator may also include a pressure switch disposed within the accommodating space, the output of which may be connected to the control module 400. For example, each vacuum drawer 300 may be equipped with a pressure switch to obtain the current air pressure of the vacuum drawer 300's accommodating space through at least two pressure switches, thereby making the acquisition of the current air pressure of the accommodating space more accurate.

[0056] For example, when the first vacuum drawer 300a transitions from a self-extracting state to a sealed state, the control module 400 controls the connecting valve 500 to open, connecting the first vacuum drawer 300a with the second vacuum drawer 300b. Then, the control module 400 controls the first suction device 600a to extract air from the containing space of the first vacuum drawer 300a, creating a negative pressure state in the containing spaces of the two vacuum drawers 300. When the pressure switch detects that the first vacuum drawer 300a has reached a first preset air pressure, it transmits a detection signal to the control module 400, which then controls the connecting valve 500 to close, ensuring the preservation effect of the containing space on the food and reducing the possibility of spoilage.

[0057] The first preset air pressure can be determined according to actual needs. For example, the first preset air pressure can be set to 0.8 atm.

[0058] When either vacuum drawer 300 transitions from the extended state to the sealed state, the control module 400 opens the connecting valve 500 to connect the two drawers, simultaneously activating the corresponding vacuuming device. With the two vacuum drawers 300's compartments interconnected, the air pressure and temperature within them quickly reach equilibrium. At this point, the first vacuuming device 600a can simultaneously evacuate the two connected drawer spaces. Compared to evacuating a single drawer independently, utilizing the interconnected space distributes the vacuuming load, accelerating the overall gas extraction speed. This allows the drawers to quickly reach the preset air pressure and temperature after opening and closing, significantly shortening the total vacuuming time and preventing prolonged waiting for the user. When the connecting valve 500 is open, the compartments of the two vacuum drawers 300 are connected, enabling not only rapid air pressure equilibrium but also slow airflow within the drawers. This allows heat from the high-temperature drawer to naturally transfer to the low-temperature drawer, gradually reducing the temperature difference and bringing the temperatures of the two vacuum drawers 300 to similar levels. No additional time is required for temperature adjustment, allowing them to directly enter a stable preservation state.

[0059] In some possible implementations, each of the multiple vacuum drawers 300 includes a first temperature mode and a second temperature mode, and the temperature of the first temperature mode is lower than the temperature of the second temperature mode. That is, both the first vacuum drawer 300a and the second vacuum drawer 300b include a first temperature mode and a second temperature mode, and the temperature of the first temperature mode is lower than the temperature of the second temperature mode.

[0060] For example, the first temperature mode can be a fresh food setting, used to store ingredients such as meat, which typically requires a temperature between -3 and -1°C. The second temperature mode can be a fruit and vegetable setting, used to store fruits and vegetables, which typically requires a temperature between 3 and 8°C.

[0061] The two vacuum drawers 300 are each equipped with two temperature modes, enabling precise preservation of categorized food items and catering to the different storage temperature requirements of various ingredients. Users can flexibly set the temperature mode for each drawer based on the type of food being stored at one time, significantly improving preservation accuracy and achieving efficient use of the refrigerator's internal space and energy consumption, balancing practicality and economy.

[0062] In some possible implementations, refer to Figure 5The vacuum drawer 300 that transitions from an extracted state to a sealed state is defined as the first vacuum drawer 300a, the vacuum drawer connected to the first vacuum drawer 300a is defined as the second vacuum drawer 300b, and the air extraction device 600 connected to the first vacuum drawer 300a is defined as the first air extraction device 600a. The control module 400 is also configured to: after the control valve 500 is closed, when the first vacuum drawer 300a is in a first temperature mode and the second vacuum drawer 300b is in a second temperature mode, control the first air extraction device 600a to continue extracting air from the containing space of the first vacuum drawer 300a so that the first vacuum drawer 300a reaches a second preset air pressure.

[0063] For example, the first vacuum drawer 300a is the fresh food setting in the first temperature mode, and the second vacuum drawer 300b is the fruit and vegetable setting in the second temperature mode. When the second vacuum drawer 300b is always closed and the first vacuum drawer 300a is in the self-extracting state transitioning to the sealed state, the control module 400 opens the connecting valve 500, connecting the containing space of the first vacuum drawer 300a and the containing space of the second vacuum drawer 300b. This allows the low temperature inside the second vacuum drawer 300b to enter the first vacuum drawer 300a. The first suction device 600a then evacuates the connected containing space, enabling the air pressure inside both the first vacuum drawer 300a and the second vacuum drawer 300b to quickly reach the first preset air pressure. This ensures that both the first vacuum drawer 300a and the second vacuum drawer 300b are in a low-temperature environment and are vacuum-treated, preventing food damage. Since the first vacuum drawer 300a is in the first temperature mode, the current temperature is not sufficient for its storage conditions, so further vacuum treatment of the first vacuum drawer 300a is necessary. Therefore, when the first vacuum drawer 300a reaches the first preset air pressure, the control module 400 controls the connecting valve 500 to close, and then the control module 400 controls the first air extraction device 600a to continue to extract air from the containing space of the first vacuum drawer 300a so that the first vacuum drawer 300a reaches the second preset air pressure.

[0064] The second preset air pressure can be determined according to actual needs. For example, the second preset air pressure can be set to 0.7 atm.

[0065] When the first vacuum drawer 300a reaches the first preset air pressure, closing the connecting valve 500 and controlling the first suction device 600a to continue suction to the second preset air pressure allows the first vacuum drawer 300a to achieve a higher vacuum level on top of its low temperature, avoiding mutual interference between drawers with different temperature modes and ensuring their respective operational stability. Closing the connecting valve 500 first and then allowing the first suction device 600a to work independently can block airflow between the two drawers, ensuring that the low-temperature environment of the first drawer is not disturbed, and also allow the second drawer to maintain stable operation at the first preset air pressure adapted to its temperature mode, avoiding temperature instability caused by air pressure fluctuations. This allows the two drawers to independently and efficiently preserve food at their respective temperatures and vacuum levels, avoiding an increase in suction load caused by connecting the two drawers.

[0066] In some possible implementations, refer to Figure 6 The control module 400 is further configured to: define the vacuum drawer 300 that transitions from an extracted state to a sealed state as the first vacuum drawer 300a; define the vacuum drawer 300 connected to the first vacuum drawer 300a as the second vacuum drawer 300b; define the air extraction device 600 connected to the first vacuum drawer 300a as the first air extraction device 600a; and define the air extraction device 600 connected to the second vacuum drawer 300b as the second air extraction device 600b. The control module 400 is also configured to: after the control valve 500 is closed, when the first vacuum drawer 300a is in a second temperature mode and the second vacuum drawer 300b is in a first temperature mode; control the first air extraction device 600a to stop extraction; and control the second air extraction device 600b to continue extraction from the receiving space of the second vacuum drawer 300b, so that the second vacuum drawer 300b reaches a second preset air pressure.

[0067] For example, the second vacuum drawer 300b is the fresh food setting in the first temperature mode, and the first vacuum drawer 300a is the fruit and vegetable setting in the second temperature mode. When the second vacuum drawer 300b is always closed and the first vacuum drawer 300a is in the self-extraction state transitioning to the sealed state, the control module 400 connects the valve 500, connecting the accommodating space of the first vacuum drawer 300a with the accommodating space of the second vacuum drawer 300b. This allows the low temperature inside the second vacuum drawer 300b to enter the first vacuum drawer 300a. The first air extraction device 600a extracts air from the connected accommodating space, enabling the air pressure inside the first vacuum drawer 300a and the second vacuum drawer 300b to quickly reach the first preset air pressure. This ensures that both the first vacuum drawer 300a and the second vacuum drawer 300b are in a low-temperature environment and are vacuum-treated, preventing damage to the food. Since the second vacuum drawer 300b is in the first temperature mode, after connection, the current temperature inside the second vacuum drawer 300b is not sufficient to meet the storage conditions of the second vacuum drawer 300b. Therefore, it is necessary to continue vacuuming the second vacuum drawer 300b. Thus, when the first vacuum drawer 300a reaches the first preset pressure, the control module 400 controls the connecting valve 500 to close, and then the control module 400 controls the second suction device 600b to open, evacuating air from the containing space of the second vacuum drawer 300b to bring the second vacuum drawer 300b to the second preset pressure.

[0068] The second preset air pressure can be determined according to actual needs. For example, the second preset air pressure can be set to 0.7 atm.

[0069] This allows for precise matching of the deep vacuum requirements of the low-temperature drawer, enhancing the preservation effect of low-temperature food. When the connecting valve 500 is closed, the second vacuum device 600b continues to evacuate the second vacuum drawer 300b to the second preset pressure. By adding a vacuum environment to the low temperature, the second vacuum device 600b focuses solely on evacuating the second vacuum drawer 300b, without sharing the evacuation load, thus reaching the second preset pressure more quickly and shortening the deep vacuuming time of the low-temperature drawer. Meanwhile, the first vacuum drawer 300a is in the second temperature mode (relatively high temperature), storing items with lower vacuum or temperature requirements. The first preset pressure is sufficient for their preservation needs. At this time, the first vacuum device 600a stops evacuating, preventing excessive vacuuming that could damage the cell walls of the food, ensuring the food's texture, and reducing energy consumption.

[0070] In some possible implementations, refer to Figure 7The control module 400 is further configured to: define the vacuum drawer 300 that transitions from an extracted state to a sealed state as the first vacuum drawer 300a; define the vacuum drawer 300 connected to the first vacuum drawer 300a as the second vacuum drawer 300b; define the air extraction device 600 connected to the first vacuum drawer 300a as the first air extraction device 600a; and define the air extraction device 600 connected to the second vacuum drawer 300b as the second air extraction device 600b. The control module 400 is also configured to: after the control valve 500 is closed, when both the first vacuum drawer 300a and the second vacuum drawer 300b are in a first temperature mode; control the first air extraction device 600a to continue extracting air from the receiving space of the first vacuum drawer 300a to make the first vacuum drawer 300a reach a second preset air pressure; simultaneously, control the second air extraction device 600b to open and extract air from the receiving space of the second vacuum drawer 300b to make the second vacuum drawer 300b reach a second preset air pressure.

[0071] For example, when both the first vacuum drawer 300a and the second vacuum drawer 300b require a relatively lower temperature mode, the first vacuum device 600a evacuates the connecting space to a first preset air pressure, closes the connecting valve 500, and then the control module 400 controls the first vacuum device 600a and the second vacuum device 600b to start working simultaneously. The first vacuum device 600a and the second vacuum device 600b evacuate the first vacuum drawer 300a and the second vacuum drawer 300b respectively, so that both the first vacuum drawer 300a and the second vacuum drawer 300b can reach the second preset air pressure. The second preset air pressure can be determined according to actual needs. For example, the second preset air pressure can be set to 0.7 atm.

[0072] In the above scheme, when both the first vacuum drawer 300a and the second vacuum drawer 300b are in the first temperature mode, after the first vacuum drawer 300a reaches the first preset air pressure and the connecting valve 500 is closed, the control module 400 still drives the first suction device 600a to continuously evacuate its containing space to reach the second preset air pressure. At the same time, the second suction device 600b is turned on to evacuate the second vacuum drawer 300b until it also reaches the second preset air pressure. This can significantly improve the evacuation efficiency of the two drawers, avoid the time wasted when the equipment enters a waiting state after a single drawer completes the initial evacuation, and allow the two drawers to complete the deep evacuation process in parallel, effectively shortening the overall vacuuming time and ensuring that both drawers eventually reach the second preset air pressure stably, thereby improving the overall operational stability and usability of the equipment.

[0073] In some possible implementations, refer to Figure 8The vacuum drawer 300 that transitions from the extracted state to the sealed state is defined as the first vacuum drawer 300a, the vacuum drawer 300 connected to the first vacuum drawer 300a is defined as the second vacuum drawer 300b, and the air extraction device 600 connected to the first vacuum drawer 300a is defined as the first air extraction device 600a. The control module 400 is also configured to: after the control valve 500 is closed, when both the first vacuum drawer 300a and the second vacuum drawer 300b are in the second temperature mode, control the first air extraction device 600a to stop working.

[0074] Understandably, when both the first vacuum drawer 300a and the second vacuum drawer 300b are in the second temperature mode, regardless of whether the first vacuum drawer 300a transitions from the withdrawn state to the sealed state or the second vacuum drawer 300b transitions from the withdrawn state to the sealed state, the control module 400 will control the connecting valve 500 to connect the accommodating spaces of the two vacuum drawers 300, so that the temperatures inside the two vacuum drawers 300 quickly become the same. Then, the control module 400 will control the pumping device on the side that transitions from the withdrawn state to the sealed state to start working. When the vacuum drawer 300 reaches the first preset air pressure, the control module 400 will stop the pumping device of the vacuum drawer 300 to avoid the pumping device continuing to operate after the vacuum drawer 300 has reached the target air pressure, which would result in energy waste or over-pumping.

[0075] When both the first vacuum drawer 300a and the second vacuum drawer 300b are in the second temperature mode, the control module 400 adopts a configuration that closes the corresponding connecting valve 500 and stops the operation of the vacuum pumping device when a single vacuum drawer 300 reaches the first preset air pressure. This configuration can accurately avoid the ineffective consumption of energy and hardware resources, reduce unnecessary power consumption, and also reduce the mechanical wear caused by the vacuum pumping device running idle or redundantly for a long time, thus extending the service life of the core components of the equipment.

[0076] In some possible implementations, refer to Figure 3 The refrigerator also includes a sterilization module 800; the control module is configured to: when the vacuum drawer 300 is in a sealed state, obtain the current air pressure value of the accommodating space of the vacuum drawer 300; when the current air pressure value is not higher than the first preset air pressure threshold, control the sterilization module 800 to release sterilizing ions into the accommodating space; during the process of the sterilization module 800 releasing sterilizing ions, control the air extraction device 600 connected to the vacuum drawer 300 not to extract air from the accommodating space.

[0077] For example, when the vacuum drawer 300 is sealed and the air pressure is not higher than the first preset threshold, the release of bactericidal ions allows them to diffuse more evenly in a closed, low-pressure environment, improving the bactericidal effect; at the same time, the air extraction is paused to prevent the bactericidal ions from being drawn away, ensuring that a sufficient concentration remains. This not only uses vacuum to inhibit the growth of microorganisms, but also actively kills bacteria through bactericidal ions, providing double protection for the safety and freshness of food storage, while also reducing energy waste and making sterilization more efficient.

[0078] In some possible implementations, refer to Figure 3 The refrigerator also includes a deodorizing module 900; the control module is configured to: when the vacuum drawer 300 is in a sealed state, acquire the gas concentration value of the accommodating space of the vacuum drawer 300; when the gas concentration value is not lower than a preset concentration threshold, control the deodorizing module 900 to release deodorizing ions into the accommodating space; during the process of the deodorizing module 900 releasing deodorizing ions, control the air extraction device 600 connected to the vacuum drawer 300 not to extract air from the accommodating space.

[0079] For example, when the vacuum drawer 300 is sealed and the gas concentration is not lower than a preset threshold, the deodorizing module 900 is activated, which allows the deodorizing ions to react more fully with odor molecules in the sealed environment, improving the deodorizing efficiency. At the same time, pausing the air extraction operation can prevent the deodorizing ions from being directly extracted, ensuring that they maintain an effective concentration in the containment space. This not only slows down the rate of odor generation in the food through the vacuum environment, but also actively eliminates existing odors with the help of deodorizing ions. Under this dual effect, the air in the drawer is kept fresh for a longer period of time, extending the food preservation period, and reducing unnecessary energy consumption and deodorizing material consumption, thus improving the economic efficiency of use.

[0080] In some possible implementations, refer to Figure 3 The refrigerator may also include a switch feedback element 110 and a pressure sensor 700. The switch feedback element 110 is disposed between the vacuum drawer and the compartment and is used to detect whether the vacuum drawer is in a sealed state. The pressure sensor is disposed in the receiving space of the vacuum drawer and is used to detect the air pressure in the receiving space.

[0081] The control module is configured such that when the switch feedback device 110 detects that the vacuum drawer is in a sealed state, the input interface of the control pump is connected to the interface of the vacuum drawer, and the control pump is used to extract air from the accommodating space of the vacuum drawer 300; when the pressure sensor 700 detects that the pressure in the accommodating space is not higher than the second preset air pressure threshold, the input interface of the control pump is disconnected from the interface of the vacuum drawer.

[0082] For example, the pressure sensor 700 may include a pressure switch disposed within the accommodating space, and the output of the pressure switch may be connected to the control module 400. For example, each accommodating space of the vacuum drawer 300 may be equipped with a pressure switch to obtain the current air pressure of the accommodating space of the vacuum drawer 300 through at least two pressure switches, so that the current air pressure of the accommodating space is obtained more accurately.

[0083] For example, when the switch feedback element 110 detects that the first vacuum drawer 300a has switched from a self-extracted state to a sealed state, the control module 400 controls the first air extraction device 600a to extract air from the containing space of the first vacuum drawer 300a, so that the containing space of the first vacuum drawer 300a forms a negative pressure state. When the pressure switch detects that the first vacuum drawer 300a has reached a first preset air pressure, it transmits a detection signal to the control module 400. The control module 400 controls the connecting valve 500 to open, connecting the first vacuum drawer 300a with the second vacuum drawer 300b. Then, after the connecting valve 500 has been open for a preset time, the control module 400 controls the connecting valve 500 to close, so as to ensure the preservation effect of the containing space on the food and reduce the possibility of food spoilage. The preset time can be adjusted according to the user's actual needs; for example, the preset time can be 5 minutes.

[0084] In this way, the switch feedback device 110 accurately detects the sealing status of the vacuum drawer, and only controls the vacuum device to connect and pump air after confirming a seal, thus avoiding ineffective energy consumption due to unsealed vacuuming. Meanwhile, the pressure sensor 700 can monitor the air pressure in the storage space in real time. When the target vacuum level is reached and does not exceed the second preset air pressure threshold, the connection between the vacuum device and the vacuum drawer is disconnected in time. This ensures the vacuum preservation environment required for food and prevents energy waste and equipment damage caused by excessive vacuuming, thereby improving the energy efficiency and reliability of the refrigerator. At the same time, the automated control process simplifies user operation and enhances ease of use.

[0085] Secondly, embodiments of this application provide a refrigerator, referring to... Figures 1-8 The refrigerator includes a cabinet 100, multiple vacuum drawers 300, multiple vacuum devices 600, and a connecting valve 500. The cabinet 100 has several compartments; the multiple vacuum drawers 300 are located within these compartments; each vacuum drawer 300 has a receiving space; each vacuum device 600 is connected to one vacuum drawer 300; and a connecting valve 500 is installed between any two vacuum drawers 300 to connect the receiving spaces of any two vacuum drawers 300.

[0086] It may also include a control module, the control method of which includes: when both connected vacuum drawers 300 are in the self-extraction state transitioning to the sealed state, controlling the connecting valve 500 to open, connecting the two vacuum drawers 300, and simultaneously acquiring the time point when the two vacuum drawers 300 transition from the self-extraction state to the sealed state; controlling the vacuum pump 600 connected to the vacuum drawer 300 that transitions from the self-extraction state to the sealed state later to pump air from the receiving space; when the vacuum drawer 300 that transitions from the self-extraction state to the sealed state later reaches a first preset air pressure, controlling the connecting valve 500 to close; acquiring the temperature mode of each vacuum drawer 300; and further determining whether the vacuum pump 600 should pump air from the vacuum drawer based on each temperature mode.

[0087] For example, the vacuum drawer 300 may include a first vacuum drawer 300a and a second vacuum drawer 300b, each having a receiving space. When the first vacuum drawer 300a is in a sealed state, its receiving space is in a closed state. When the second vacuum drawer 300b is in a sealed state, its receiving space is in a closed state. When the first vacuum drawer 300a is in a pulled-out state, its receiving space is in an open state. When the second vacuum drawer 300b is in a pulled-out state, its receiving space is in an open state. The first vacuum drawer 300a and the second vacuum drawer 300b include a first temperature mode and a second temperature mode, with the temperature of the first temperature mode being lower than the air temperature of the second temperature mode. Both the first vacuum drawer 300a and the second vacuum drawer 300b can switch between the first temperature mode and the second temperature mode.

[0088] The vacuum device 600 includes a first vacuum device 600a and a second vacuum device 600b. The first vacuum device 600a is connected to the first vacuum drawer 300a; the second vacuum device 600b is connected to the second vacuum drawer 300b; the first end of the connecting valve 500 is connected to the first vacuum drawer 300a, and the second end of the connecting valve 500 is connected to the second vacuum drawer 300b.

[0089] For example, when the first vacuum drawer 300a transitions from the pulled-out state to the sealed state later, that is, the closing time of the first vacuum drawer 300a is later than that of the second vacuum drawer 300b, the control connecting valve 500 is opened to connect the first vacuum drawer 300a and the second vacuum drawer 300b; the control first air extraction device 600a is used to extract air from the containing space of the first vacuum drawer 300a; when the first vacuum drawer 300a reaches the first preset air pressure, the control connecting valve 500 is closed; and the temperature modes of the first vacuum drawer 300a and the second vacuum drawer 300b are obtained.

[0090] When the first vacuum drawer 300a is in the first temperature mode and the second vacuum drawer 300b is in the second temperature mode, the first air extraction device 600a is controlled to continue to extract air from the containing space of the first vacuum drawer 300a so that the first vacuum drawer 300a reaches the second preset air pressure. When the first vacuum drawer 300a is in the second temperature mode and the second vacuum drawer 300b is in the first temperature mode, the first air extraction device 600a is controlled to stop extraction, and the second air extraction device 600b is controlled to continue extraction from the receiving space of the second vacuum drawer 300b, so that the second vacuum drawer 300b reaches the second preset air pressure. When both the first vacuum drawer 300a and the second vacuum drawer 300b are in the first temperature mode, the first vacuum pump 600a is controlled to continue pumping air from the receiving space of the first vacuum drawer 300a to make the first vacuum drawer 300a reach the second preset air pressure, and the second vacuum pump 600b is controlled to continue pumping air from the receiving space of the second vacuum drawer 300b to make the second vacuum drawer 300b reach the second preset air pressure; when both the first vacuum drawer 300a and the second vacuum drawer 300b are in the second temperature mode, the first vacuum pump 600a stops working.

[0091] When the first vacuum drawer 300a transitions from the self-extracting state to the sealed state, the control module 400 first controls the connecting valve 500 to open to connect the two vacuum drawers 300, enabling the two drawers to achieve initial air pressure synchronization under the same temperature environment, reducing air pressure fluctuations caused by temperature differences; then, the first evacuation device 600a evacuates the first drawer until the first preset air pressure is reached, after which the connecting valve 500 is closed. Then, differentiated control is performed according to the temperature mode of each vacuum drawer 300, making the air pressure adjustment more precise, ensuring that the two drawers meet the temperature requirements and that the air pressure control is always stable and meets the preset standards.

[0092] Thirdly, this application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a computer, are used to implement the method described in the second aspect.

[0093] The computer-readable storage medium provided in this application embodiment can execute the technical solutions in the above method embodiments, and its beneficial effects are similar, so they will not be described again here.

[0094] Fourthly, this application also provides a computer program product, including a computer program that, when executed by a computer, is used to implement the method described in the second aspect.

[0095] The computer program product provided in this application can execute the technical solutions in the above method embodiments, and its beneficial effects are similar, so they will not be repeated here. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0096] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that, include: The container has several compartments inside; Multiple vacuum drawers are disposed in the compartment, and each of the multiple vacuum drawers is provided with a receiving space; Multiple air extraction devices are connected to the vacuum drawer in a one-to-one correspondence. A connecting valve is provided between any two of the vacuum drawers, and the connecting valve is used to connect the accommodating spaces of any two of the vacuum drawers; The control module is configured to control the opening of the connecting valve when any of the vacuum drawers transitions from the withdrawn state to the sealed state, so as to connect the receiving space of the vacuum drawer that has transitioned from the withdrawn state to the sealed state with the receiving space of the vacuum drawer that is in the sealed state. The air extraction device connected to the vacuum drawer, which controls the transition from the self-extracting state to the sealed state, extracts air from the containing space. When the vacuum drawer, which has transitioned from the withdrawn state to the sealed state, reaches a first preset air pressure, the connecting valve is controlled to close.

2. The refrigerator according to claim 1, characterized in that, Each of the aforementioned vacuum drawers includes a first temperature mode and a second temperature mode, wherein the temperature of the first temperature mode is lower than the temperature of the second temperature mode.

3. The refrigerator according to claim 2, characterized in that, The vacuum drawer that transitions from the withdrawn state to the sealed state is defined as the first vacuum drawer; the vacuum drawer connected to the first vacuum drawer via the connecting valve is defined as the second vacuum drawer; and the air extraction device connected to the first vacuum drawer is defined as the first air extraction device. The control module is also configured to: When the first vacuum drawer is in the first temperature mode and the second vacuum drawer is in the second temperature mode; when the first vacuum drawer reaches the first preset air pressure, the control module controls the connecting valve to close. The control module controls the first air extraction device to continue extracting air from the containment space of the first vacuum drawer, so that the first vacuum drawer reaches the second preset air pressure.

4. The refrigerator according to claim 2, characterized in that, A vacuum drawer that transitions from a withdrawn state to a sealed state is defined as a first vacuum drawer; a vacuum drawer connected to the first vacuum drawer via the connecting valve is defined as a second vacuum drawer; an air extraction device connected to the first vacuum drawer is defined as a first air extraction device; and an air extraction device connected to the second vacuum drawer is defined as a second air extraction device. The control module is also configured to: When the first vacuum drawer is in the second temperature mode, the second vacuum drawer is in the first temperature mode; When the first vacuum drawer reaches the first preset air pressure, the control module controls the connecting valve to close; The control module controls the first vacuum device to stop vacuuming, and controls the second vacuum device to continue vacuuming from the containment space of the second vacuum drawer, so that the second vacuum drawer reaches the second preset air pressure.

5. The refrigerator according to claim 2, characterized in that, The vacuum drawer that transitions from the withdrawn state to the sealed state is defined as the first vacuum drawer; the vacuum drawer connected to the first vacuum drawer via the connecting valve is defined as the second vacuum drawer; the air extraction device connected to the first vacuum drawer is defined as the first air extraction device; and the air extraction device connected to the second vacuum drawer is defined as the second air extraction device. The control module is also configured to: When both the first vacuum drawer and the second vacuum drawer are in the first temperature mode; When the first vacuum drawer reaches the first preset air pressure, the control module controls the connecting valve to close. The control module controls the first air extraction device to continue extracting air from the containing space of the first vacuum drawer so that the first vacuum drawer reaches the second preset air pressure; At the same time, the control module controls the second air extraction device to start, and controls the second air extraction device to continue to extract air from the containment space of the second vacuum drawer, so that the second vacuum drawer reaches the second preset air pressure.

6. The refrigerator according to claim 2, characterized in that, The vacuum drawer that transitions from the withdrawn state to the sealed state is defined as the first vacuum drawer; the vacuum drawer connected to the first vacuum drawer via the connecting valve is defined as the second vacuum drawer; and the air extraction device connected to the first vacuum drawer is defined as the first air extraction device. The control module is also configured to: When both the first vacuum drawer and the second vacuum drawer are in the second temperature mode; When the first vacuum drawer reaches the first preset air pressure, the control module controls the connecting valve to close. The first air extraction device is controlled to stop working.

7. The refrigerator according to claim 1, characterized in that, The refrigerator also includes a sterilization module; The control module is configured as follows: When the vacuum drawer is in a sealed state, obtain the current air pressure value of the vacuum drawer's containing space; When the current air pressure value is not higher than the first preset air pressure threshold, the sterilization module is controlled to release sterilizing ions into the containment space; during the process of the sterilization module releasing sterilizing ions, the air extraction device connected to the vacuum drawer is controlled to stop working.

8. The refrigerator according to claim 1, characterized in that, The refrigerator also includes an odor-eliminating module; The control module is configured as follows: When the vacuum drawer is in a sealed state, the gas concentration value of the containing space of the vacuum drawer is obtained; When the gas concentration value is not lower than the preset concentration threshold, the deodorizing module is controlled to release deodorizing ions into the containing space; during the process of the deodorizing module releasing deodorizing ions, the air extraction device connected to the vacuum drawer is controlled to stop working.

9. The refrigerator according to any one of claims 1-8, characterized in that, The refrigerator also includes: A switch feedback element is disposed between the vacuum drawer and the compartment, and is used to detect whether the vacuum drawer is in a sealed state. A pressure sensor is disposed within the receiving space of the vacuum drawer and is used to detect the air pressure within the receiving space. The control module is configured as follows: When the switch feedback device detects that the vacuum drawer is in a sealed state, it controls the air extraction device to extract air from the receiving space of the vacuum drawer; When the pressure sensor detects that the pressure in the containment space is not higher than the second preset air pressure threshold, the input interface of the control device is disconnected from the interface of the vacuum drawer.

10. A refrigerator, characterized in that, The refrigerator includes: The container has several compartments inside; Multiple vacuum drawers are disposed within the compartment; each of the multiple vacuum drawers is provided with a receiving space. An air extraction device, the air extraction device comprising: Multiple air extraction devices, one of which is connected to one of the vacuum drawers; A connecting valve is provided between any two of the vacuum drawers, and the connecting valve is used to connect the accommodating spaces of any two of the vacuum drawers; The control module, wherein the control method includes: When both of the connected vacuum drawers are in the self-extraction state and transition to the sealed state, the connecting valve is opened to connect the two vacuum drawers, and the time point when the two vacuum drawers transition from the self-extraction state to the sealed state is obtained. The vacuum drawer connected to the air extraction device extracts air from the containing space after the time point when the control is in the self-extraction state to the sealed state. When the vacuum drawer reaches the first preset air pressure after the point at which it transitions from the withdrawn state to the sealed state, the connecting valve is controlled to close.

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