Fresh-keeping and keeping-alive assembly of refrigerator, refrigerator and control method thereof

Abstract

The application provides a fresh-keeping assembly for fresh food in a refrigerator, the refrigerator and a control method thereof. The fresh-keeping assembly comprises a fresh-keeping chamber, a storage container and a lifting adjusting mechanism. The fresh-keeping chamber is formed with a fresh-keeping space for containing water. The storage container is arranged in the fresh-keeping space in a liftable manner and used for containing fresh food. A plurality of draining holes are formed in the bottom of the storage container. The lifting adjusting mechanism is used for driving the storage container to lift relative to the fresh-keeping space, so that the storage container is at least partially immersed in water or leaves the water surface. The fresh-keeping assembly for fresh food in the application drives the storage container to leave the water surface or be at least partially immersed in water by using the lifting adjusting mechanism. The efficient switching between the water-containing fresh-keeping state and the water-free fresh-keeping state of the fresh-keeping assembly for fresh food can be realized. The frequent water injection and water drainage of the fresh-keeping chamber can be avoided, so that the waste of water resources and the excessive damage to the water injection mechanism and the water drainage mechanism are prevented, and the service life of the fresh-keeping assembly for fresh food is prolonged.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of refrigerators, and particularly relates to a fresh-keeping and vitality-maintaining assembly of a refrigerator, the refrigerator and a control method thereof. BACKGROUND

[0002] With the increasing improvement of living standards, people have higher and higher requirements for the freshness of fresh food, and thus have higher and higher requirements for the fresh-keeping performance of refrigerators. If fresh food is not immediately cooked after being bought by a user, the activity of the food will be greatly reduced during placement, affecting the taste when used.

[0003] In the prior art, the vitality-maintaining technology in a refrigerator has water vitality-maintaining and waterless vitality-maintaining, and different vitality-maintaining technologies are suitable for different types of fresh food. The fresh-keeping drawer configured in some refrigerators on the market can only switch between the water vitality-maintaining function and the waterless vitality-maintaining function by injecting water into the drawer or discharging water from the drawer, resulting in low switching efficiency and easy water waste. SUMMARY

[0004] The fresh-keeping and vitality-maintaining assembly of a refrigerator, the refrigerator and the control method thereof provided in the embodiments of the application can solve the technical problem of low switching efficiency of the water vitality-maintaining function and the waterless vitality-maintaining function in a refrigerator.

[0005] To achieve the above object, the application provides the following technical scheme:

[0006] A fresh-keeping and vitality-maintaining assembly of a refrigerator comprises:

[0007] A vitality-maintaining chamber is formed with a vitality-maintaining space for containing water;

[0008] A storage container is arranged in the vitality-maintaining space in a liftable manner and used for containing fresh food, and a bottom of the storage container is provided with a plurality of water draining holes;

[0009] A lifting adjusting mechanism is used for driving the storage container to lift relative to the vitality-maintaining space, so that the storage container is at least partially immersed in water or leaves the water surface.

[0010] In some embodiments, the storage container is provided with a sliding member, the vitality-maintaining chamber is further provided with a chute communicating with the vitality-maintaining space, and the sliding member is in sliding connection with the chute, so that the storage container is arranged in the vitality-maintaining space in a liftable manner.

[0011] In some embodiments, the lifting adjusting mechanism comprises:

[0012] A power unit is arranged in the vitality-maintaining chamber;

[0013] A transmission module is connected with the output end of the sliding member and the output shaft of the power unit, and is adapted to drive the storage container to move up and down relative to the alive space.

[0014] In some embodiments, the refrigerator further comprises a gas regulation device, which comprises a gas separation unit and a first gas delivery module in communication with each other, the gas separation unit is used to separate oxygen from the internal air, and the gas delivery module is used to deliver the oxygen to the alive space.

[0015] In some embodiments, the refrigerator comprises a fruit and vegetable chamber for storing fruits and vegetables, and the gas regulation device further comprises a second gas delivery module in communication with the gas separation unit, the gas separation unit is further used to separate nitrogen from the internal air, and the second gas delivery module is used to deliver or stop delivering the nitrogen to the fruit and vegetable chamber.

[0016] In some embodiments, the first gas delivery module comprises a first delivery pipe, a second delivery pipe, a third delivery pipe and a gas stone, the gas inlet end of the first delivery pipe is in communication with the gas separation unit, the gas inlet ends of the second delivery pipe and the third delivery pipe are in communication with the gas outlet end of the first delivery pipe, the gas outlet end of the second delivery pipe is in communication with the storage container, the gas stone is arranged in the alive space and outside the storage container, and the gas outlet end of the third delivery pipe is in communication with the gas inlet end of the gas stone.

[0017] In some embodiments, the fresh food alive-keeping assembly further comprises a magnetic field sterilization device, which is installed on the alive-keeping chamber and is used to apply a magnetic field to the alive space.

[0018] In some embodiments, the fresh food alive-keeping assembly further comprises a humidifying device, which is installed on the alive-keeping chamber and is used to spray atomized water into the storage container.

[0019] A refrigerator comprising the above fresh food alive-keeping assembly.

[0020] A control method applied to the above refrigerator, the control method comprising:

[0021] Obtaining the type of fresh food in the storage container;

[0022] Determining an alive-keeping type according to the type, the alive-keeping type comprising water alive-keeping and waterless alive-keeping;

[0023] Controlling the lifting and adjusting action of the lifting and adjusting mechanism based on the alive-keeping type.

[0024] The fresh-keeping assembly of the refrigerator, the refrigerator and the control method thereof provided by the embodiments of the present application can realize switching between the water-keeping state and the non-water-keeping state of the fresh-keeping assembly by increasing the setting container and the lifting adjusting mechanism and driving the setting container to be away from the water surface or at least partially submerged in the water by the lifting adjusting mechanism. In this way, the switching efficiency of the fresh-keeping state of the fresh-keeping assembly can be greatly improved, and the fresh-keeping chamber can be prevented from frequently injecting and draining water, so as to prevent water resource waste and excessive damage to the water injection mechanism and the water drainage mechanism, and prolong the service life of the fresh-keeping assembly. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0026] In order to more completely understand the present application and its beneficial effects, the following will be described with reference to the drawings. In the following description, the same reference numerals represent the same parts.

[0027] Figure 1 The structural schematic diagram of the fresh-keeping assembly provided by the embodiments of the present application.

[0028] Figure 2 The structural schematic diagram of the setting container provided by the embodiments of the present application.

[0029] Figure 3 The structural schematic diagram provided by the embodiments of the present application. Figure 1 The enlarged view of the structure schematic diagram shown in the B area.

[0030] Figure 4 The structural schematic diagram of the refrigerator provided by the embodiments of the present application.

[0031] Figure 5 The flowchart of the control method provided by the embodiments of the present application.

[0032] Figure 6 The structural schematic diagram of the control device provided by the embodiments of the present application.

[0033] Explanation of reference numerals:

[0034] 10, refrigerator; 20, control device;

[0035] 100, fresh-keeping assembly; 200, fruit and vegetable chamber; 20a, acquisition module; 20b, processing module; 20c, control module;

[0036] 110, keep-alive chamber; 120, storage container; 130, lifting adjusting mechanism; 140, air conditioning device; 150, magnetic field sterilization device; 160, humidifying device; 170, water injection port;

[0037] 111, keep-alive space; 112, chute; 121, draining hole; 122, bottom wall; 123, circumferential side wall; 124, sliding member; 131, power unit; 132, transmission module; 141, gas separation unit; 142, first gas conveying module; 143, second gas conveying module;

[0038] 1321, gear; 1322, straight rack; 1421, first conveying pipeline; 1422, second conveying pipeline; 1423, third conveying pipeline; 1424, air stone; 1431, fourth conveying pipeline; 1432, valve body. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely in the description below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0041] "A and / or B" includes the following three combinations: only A, only B, and the combination of A and B.

[0042] The use of “adapted to” or “configured to” in this application means open and inclusive language that is not to be limited to devices adapted or configured to perform additional tasks or steps. Additionally, the use of “based on” means open and inclusive language that is to be interpreted in the sense that a process, step, calculation or other action is based on one or more recited conditions or values, even if additional conditions or values are also used in the process, step, calculation or other action.

[0043] In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration." Any implementation described as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using these specific details. In other instances, well-known structures and processes are not elaborated in order not to obscure the description of the present application with unnecessary details. Thus, the present application is not intended to be limited by the embodiments shown, but is to be accorded with the widest scope consistent with the principles and features disclosed herein.

[0044] The embodiment of the present application provides a fresh-keeping assembly of a refrigerator. Exemplarily, please refer to Figure 1 , Figure 1 The fresh-keeping assembly provided by the embodiment of the present application is shown in a structural schematic view. The fresh-keeping assembly 100 comprises a fresh-keeping chamber 110, a storage container 120 and a lifting adjusting mechanism 130.

[0045] The fresh-keeping chamber 110 is formed with a fresh-keeping space 111 for containing water; the storage container 120 is arranged in the fresh-keeping space 111 in a liftable manner and is used for containing fresh food, and the bottom of the storage container 120 is provided with a plurality of draining holes 121; and the lifting adjusting mechanism 130 is used for driving the storage container 120 to lift relative to the fresh-keeping space 111, so that the storage container 120 is at least partially immersed in water or leaves the water surface.

[0046] It should be noted that the fresh food can include aquatic products, meat, fruits and vegetables, and other food materials that need to be kept in a fresh state. There are two different preservation technologies, i.e., water preservation and non-water preservation. The non-water preservation mainly utilizes the physiological characteristics of fresh food, and achieves the preservation by adjusting the respiration metabolism and inhibiting the growth of microorganisms. For example, by reducing the temperature of the food, the food enters a state similar to dormancy, thereby reducing the metabolism speed. The water preservation is to create a suitable water environment for the food in the refrigerator for storage. The suitable water environment includes suitable water temperature, dissolved oxygen content, pH value, hardness and other water quality parameters, and the purpose is to simulate the water body conditions of the natural survival of the food as much as possible, thereby reducing the stress response in the non-natural environment and prolonging the survival time. Based on the preservation time of the food and the specific type of the food, the suitable preservation method is not the same.

[0047] In actual application, first, the preservation function of the fresh food in the current storage container 120 is determined, the preservation function includes water preservation and non-water preservation, and then it is determined whether the preservation state of the fresh preservation assembly 100 needs to be switched; if the fresh preservation assembly 100 needs to be switched from the non-water preservation state to the water preservation state, the storage container 120 is driven to descend relative to the preservation space 111 by the lifting adjustment mechanism 130, so that the storage container 120 is at least partially immersed in water, the water enters the inside of the storage container 120 from the draining hole 121, and the water preservation of the fresh food in the storage container 120 is realized; if the fresh preservation assembly 100 needs to be switched from the water preservation state to the non-water preservation state, the storage container 120 is driven to ascend relative to the preservation space 111 by the lifting adjustment mechanism 130, so that the storage container 120 leaves the water surface, the water in the storage container 120 flows out from the draining hole 121, so that the storage container 120 is separated from the water, and the non-water preservation of the fresh food in the storage container 120 is realized.

[0048] The fresh preservation assembly 100 of the refrigerator provided by the embodiment of the present application can realize the switching between the water preservation state and the non-water preservation state of the fresh preservation assembly 100 by increasing the storage container 120 and the lifting adjustment mechanism 130, and driving the storage container 120 to leave the water surface or at least partially immerse in the water. In this way, not only the switching efficiency of the preservation state of the fresh preservation assembly 100 can be greatly improved, but also the frequent water injection and drainage of the preservation chamber 110 can be avoided, so as to prevent the waste of water resources and the excessive damage to the water injection mechanism and the drainage mechanism, and prolong the service life of the fresh preservation assembly 100.

[0049] Optionally, please refer to Figure 2 , Figure 2A structure schematic view of the storage container is provided in the embodiments of the present application. The storage container 120 comprises a bottom wall 122 and a circumferential side wall 123 arranged on the bottom wall 122, and the bottom wall 122 and the circumferential side wall 123 are arranged to form a storage groove with an opening facing upward; and a plurality of water draining holes 121 are arranged on the bottom wall 122. Preferably, the plurality of water draining holes 121 are arranged in an array on the bottom wall 122. In some other embodiments, the water draining holes 121 can also be arranged on the circumferential side wall 123, so as to improve the water inlet and drainage speed of the storage container 120. The storage container 120 can be made of stainless steel, glass fiber reinforced plastic, ceramic, plastic or other corrosion-resistant materials.

[0050] In some embodiments, the storage container 120 is provided with a sliding piece 124, and the preservation chamber 110 is also provided with a sliding groove 112 communicating with the preservation space 111, and the sliding piece 124 is in sliding connection with the sliding groove 112, so that the storage container 120 can be arranged in the preservation space 111 in a lifting manner. Optionally, the sliding piece 124 is connected to the circumferential side wall 123 of the storage container 120, and correspondingly, the sliding groove 112 is arranged on the inner side wall of the preservation chamber 110 and extends in the up-down direction. Preferably, the two opposite side walls of the storage container 120 are respectively provided with the sliding pieces 124, so as to improve the stability of the storage container 120 during the lifting movement.

[0051] In some embodiments, please refer to Figure 3 , Figure 3 A structure schematic view of the lifting adjusting mechanism is provided in the embodiments of the present application. The lifting adjusting mechanism 130 comprises a power unit 131 and a transmission module 132. The power unit 131 is arranged in the preservation chamber 110; the transmission module 132 comprises an output end and an input end, the output end is connected with the sliding piece 124, and the input end is connected with the output shaft of the power unit 131, and the power unit 131 is adapted to drive the storage container 120 to lift relative to the preservation space 111 through the transmission module 132. Wherein, the power unit 131 performs corresponding driving actions in response to the driving signal of the controller, such as making the output shaft rotate forward or reverse, and then driving the sliding piece 124 to slide upward or downward in the sliding groove 112 through the transmission module 132. Exemplarily, the power unit 131 is a rotary motor, the transmission module 132 comprises a gear 1321 and a straight rack 1322, the gear 1321 is fixedly sleeved on the output shaft of the power unit 131; the straight rack 1322 is in meshing connection with the gear 1321 and is fixedly connected with the sliding piece 124; the power unit 131 drives the straight rack 1322 to move upward or downward in the preservation chamber 110 through the gear 1321, and then the straight rack 1322 drives the sliding piece 124 to slide upward or downward in the sliding groove 112.

[0052] In some other embodiments, the lifting adjustment mechanism 130 may include an elastic element, a magnetic element, and an electromagnetic coil. The two ends of the elastic element are fixedly connected to the storage container 120 and the retaining chamber 110, respectively, and extend vertically to apply an elastic force to the storage container 120. The magnetic element is fixed to the storage container 120, and the electromagnetic coil is fixed to the retaining chamber 110. The electromagnetic coil is adapted to generate a magnetic field when energized, and the magnetic field is adapted to generate a magnetic force on the magnetic element, so that the magnetic element applies a force to the storage container 120 that balances the elastic force. The strength of the magnetic field generated by the electromagnetic coil is adjustable. In practical applications, when the intensity of the current flowing through the electromagnetic coil is changed, the strength of the magnetic field generated by the electromagnetic coil changes, thereby changing the magnitude of the magnetic force generated on the magnetic element. This causes the magnetic element to move vertically relative to the electromagnetic coil, and the magnetic element then drives the storage container 120 to move relative to the retaining space 111 until the elastic force from the elastic element and the force from the magnetic element on the storage container 120 reach equilibrium again. Thus, the lifting adjustment mechanism 130 completes the lifting adjustment of the storage container 120.

[0053] In some embodiments, the fresh food preservation component 100 further includes a modified atmosphere device 140, which includes a gas separation unit 141 and a first gas delivery module 142 connected to each other. The gas separation unit 141 is used to separate oxygen from the internal air, and the gas delivery module is used to deliver oxygen to the preservation space 111. It is understood that by delivering oxygen to the preservation space 111, a suitable gaseous environment for the fresh food can be simulated, preventing it from losing its vitality due to lack of oxygen.

[0054] Optionally, the first gas delivery module 142 includes a first delivery pipe 1421, a second delivery pipe 1422, a third delivery pipe 1423, and a gas stone 1424. The inlet end of the first delivery pipe 1421 is connected to the gas separation unit 141. The inlets of the second delivery pipe 1422 and the third delivery pipe 1423 are both connected to the outlet end of the first delivery pipe 1421. The outlet end of the second delivery pipe 1422 is connected to the storage container 120. The gas stone 1424 is disposed in the preservation space 111 and located outside the storage container 120. The outlet end of the third delivery pipe 1423 is connected to the inlet end of the gas stone 1424. For example, valves are provided on both the second delivery pipe 1422 and the third delivery pipe 1423. The valves can be opened and closed to make the gas delivery pipes they are connected to open or close, thereby enabling the gas delivery pipes to deliver or stop delivering oxygen.

[0055] The gas separation unit 141 may include a molecular sieve, which is used to separate oxygen from the air. A molecular sieve is a material with a uniform microporous structure, primarily based on the principle of physical adsorption to separate oxygen and nitrogen. The micropores inside the molecular sieve are roughly the size of molecules, enabling them to distinguish between different gas molecules. When a mixture of gases, such as air, passes through an adsorption column containing a molecular sieve, under appropriate pressure and temperature conditions, nitrogen molecules are preferentially adsorbed within the micropores of the molecular sieve, while oxygen molecules pass through more easily, resulting in a gas with a relatively high oxygen concentration at the outlet. As adsorption progresses, once the molecular sieve becomes saturated with nitrogen, it needs regeneration to continue operating. Desorption is mainly achieved by reducing pressure or increasing temperature. In pressure swing adsorption (PSA), the pressure is primarily reduced to detach nitrogen molecules from the micropores, restoring the adsorption capacity of the molecular sieve, thereby separating and utilizing oxygen and nitrogen from the air.

[0056] In some embodiments, please refer to Figure 4 , Figure 4 This is a schematic diagram of a refrigerator provided in an embodiment of this application. The refrigerator 10 also includes a fruit and vegetable compartment 200 for storing fruits and vegetables; the controlled atmosphere device 140 of the fresh food preservation component 100 further includes a second gas delivery module 143 connected to a gas separation unit 141. The gas separation unit 141 is also used to separate nitrogen from the internal air, and the second gas delivery module 143 is used to supply or stop supplying nitrogen to the fruit and vegetable compartment 200. It is understood that, on the one hand, by filling the fruit and vegetable compartment 200 with nitrogen, the oxygen concentration in the compartment can be reduced, thereby inhibiting the respiration of fruits and vegetables and inhibiting the reproduction of microorganisms in the compartment, thus extending the shelf life of fruits and vegetables and reducing the risk of spoilage and deterioration; on the other hand, the controlled atmosphere device 140 separates oxygen from the air to supply the preservation compartment 110, while simultaneously separating nitrogen to supply the fruit and vegetable compartment 200, achieving two goals at once, with high controlled atmosphere efficiency and good effect.

[0057] Optionally, the second gas delivery module 143 includes a fourth delivery pipe 1431 and a valve body 1432 disposed on the fourth delivery pipe 1431. The inlet end of the fourth delivery pipe 1431 is connected to the gas separation unit 141, and the outlet end is connected to the fruit and vegetable chamber 200. The valve body 1432 can be opened and closed to make the fourth delivery pipe 1431 open or closed, so as to make the fourth delivery pipe 1431 deliver or stop delivering nitrogen.

[0058] In some embodiments, such as Figure 1As shown, the fresh food preservation component 100 also includes a magnetic field sterilization device 150, which is installed on the preservation chamber 110 and used to apply a magnetic field to the preservation space 111. Optionally, the magnetic field sterilization device 150 is located below the preservation chamber 110. It should be noted that magnetic field sterilization is a technology that uses a magnetic field to inactivate or inhibit microorganisms. By applying a magnetic field to the preservation space 111, the magnetic field sterilization device 150 can damage the cell membranes, proteins, and DNA of microbial cells in the preservation space 111, and raise the temperature of the microbial cells through the magnetothermal effect, thereby achieving a sterilization effect on the preservation space 111 and reducing the rate of spoilage and death of fresh food in the storage container 120. In addition, the magnetic field sterilization device 150 can also heat the water in the preservation space 111 by generating a magnetothermal effect to provide a suitable water temperature for the survival of food and extend the freshness of the food.

[0059] In some embodiments, such as Figure 1 As shown, the fresh food preservation component 100 also includes a humidifier 160, which is installed on the preservation chamber 110 and used to spray atomized water into the storage container 120. Optionally, the humidifier 160 is installed on the top of the preservation chamber 110, with the nozzle facing the opening of the storage container 120. It is understood that spraying atomized water into the storage container 120 can regulate the humidity of the environment in which the food is located, providing a suitable gaseous environment for the food's survival and extending its freshness.

[0060] Optionally, the fresh food preservation component 100 may also be equipped with a drainage mechanism located in the preservation space 111. The drainage mechanism is suitable for cleaning up the excrement produced by the fresh food in the water, so as to ensure the cleanliness of the water and improve the survival rate of the food.

[0061] Optionally, the survival chamber 110 is provided with a water inlet 170 that connects the survival space 111 to the outside, and the water inlet 170 is adapted to deliver water from the outside to the survival space 111.

[0062] The refrigerator fresh food preservation component 100 provided in this application embodiment, by adding a storage container 120 and a lifting and adjusting mechanism 130, can switch between a water-containing preservation state and a waterless preservation state by using the lifting and adjusting structure to drive the storage container 120 out of the water surface or at least partially submerged in the water. This not only greatly improves the efficiency of switching the preservation state of the fresh food preservation component 100, but also avoids frequent water filling and drainage of the preservation compartment 110, thereby preventing water waste and excessive wear and tear on the water filling and drainage mechanisms, and extending the service life of the fresh food preservation component 100.

[0063] This application also provides a refrigerator, which includes the fresh food preservation component from any of the above embodiments. The refrigerator can be a single-door, double-door, side-by-side, French door, cross-door, or other type of refrigerator. The fresh food preservation component 100 can be disposed in the refrigerator's crisper compartment. The refrigerator's refrigeration system can supply cold air to the preservation compartment to regulate the temperature of the preservation space, thereby realizing the preservation function of the fresh food preservation component.

[0064] The refrigerator provided in this application embodiment, based on the structure of the liftable storage container of the fresh food preservation component, can achieve efficient switching between water-containing preservation function and waterless preservation function, and does not require the fresh food preservation component to frequently perform water injection and drainage operations, which can save water resources, reduce structural damage, and provide users with a better user experience.

[0065] This application also provides a control method applied to the refrigerator described above. For an example, please refer to... Figure 5 , Figure 5 A flowchart illustrating a control method provided in an embodiment of this application. The control method includes the following steps S101-S103:

[0066] Step S101: Obtain the types of fresh ingredients in the storage container 120;

[0067] The types of fresh food in the storage container 120 can be manually entered by the user or obtained by the refrigerator's intelligent recognition. Users can input the information via the refrigerator's control panel or a mobile terminal connected to the refrigerator. Optionally, after recognizing the types of fresh food in the storage container 120, the refrigerator can also send a confirmation request to the user via its display and control device. If the user confirms that the recognition is correct or if the user does not issue a confirmation instruction within a preset time, the next step is executed. If the user finds an error in the recognition, they can correct the types of food via the display and control device and issue a confirmation instruction after confirming the correction, so that the refrigerator can execute the next step.

[0068] The refrigerator can employ one or more of the following technologies to intelligently identify the types of fresh food in the storage container 120: image recognition, RFID tag recognition, odor recognition, sound wave recognition, and infrared recognition. For example, an image acquisition device can be installed above the storage container 120 to acquire images of the fresh food in the storage container 120 and analyze the images using an image recognition algorithm to determine the types of fresh food in the storage container 120.

[0069] In some embodiments, before the user puts in fresh food, the refrigerator can control the magnetic field sterilization device 150 to be turned on for a target duration to sterilize the preservation space 111 and prevent the fresh food from being contaminated after it is put in.

[0070] Step S102: Determine the survival type based on the species. Survival types include survival with water and survival without water.

[0071] The refrigerator or cloud platform may store a preservation database, which includes the correspondence between various food types and preservation types. This allows the refrigerator to determine the appropriate preservation type for each type of fresh food based on a matching algorithm. For example, if the refrigerator detects that the fresh food is live aquatic product, it determines the corresponding preservation type as "water-based preservation"; if it detects that the fresh food is fruits and vegetables, or aquatic products that have lost their vitality, it determines the corresponding preservation type as "waterless preservation."

[0072] Alternatively, users can select the keep-alive type directly on the refrigerator's control panel according to their actual needs.

[0073] In some embodiments, the refrigerator also determines the preservation time based on the type of fresh food, and the user can also choose to manually input the preservation time. In other embodiments, the refrigerator may obtain the type of fresh food in the storage container 120 and the preservation time input by the user, and determine the preservation type based on the type and preservation time.

[0074] Step S103: Control the lifting and adjusting action of the lifting and adjusting mechanism 130 based on the keep-alive type.

[0075] For example, if the survival type is waterless survival, the lifting and adjusting mechanism 130 is controlled to perform a first adjustment action to drive the container 120 to rise above the water surface; if the survival type is water-containing survival, the lifting and adjusting mechanism 130 is controlled to perform a second adjustment action to drive the container 120 to descend and sink into the water.

[0076] Furthermore, this application also provides an operation method for the above-mentioned refrigerator to perform waterless preservation: after determining that the preservation type is waterless preservation, the fresh food is subjected to cold shock pretreatment; the lifting adjustment mechanism 130 is controlled to drive the storage container 120 to separate the container from the water; the internal temperature of the storage container 120 is controlled to drop to the temperature suitable for storing the fresh food; the second conveying pipe 1422 is controlled to deliver oxygen to the storage container 120, and the humidification device 160 is controlled to spray water mist into the storage container 120; before the fresh food needs to be taken out for cooking, the refrigerator can also activate the food. Among them, the operation steps of the refrigerator to perform cold shock pretreatment on the fresh food may include: controlling the temperature of the water in the preservation space 111 to drop to the target cold shock temperature; controlling the lifting adjustment mechanism 130 to drive the storage container 120 to sink into the water, and waiting for a preset time, so that the fresh food is stimulated by cold water and enters a dormant state. The steps for activating fresh food in a refrigerator may include: controlling the lifting and adjusting mechanism 130 to drive the storage container 120 to sink into the water; controlling the magnetic field sterilization device 150 to turn on to heat the water, thereby reviving the dormant fresh food.

[0077] It should be noted that cold shock pretreatment refers to the process of treating food under specific low-temperature conditions for a short period of time. When aquatic products such as fish and shrimp are caught, their physiological activities continue, consuming oxygen, generating heat, and decomposing their own nutrients. Cold shock pretreatment can quickly disrupt the physiological balance of the food, inhibiting physiological changes. It can reduce their respiration rate and metabolic rate, inhibit the growth and reproduction of microorganisms, reduce enzyme activity, extend the shelf life of the food, and at the same time, maintain the quality and nutritional components of the food to a certain extent.

[0078] This application also provides an operation method for the above-mentioned refrigerator to keep food alive with water: after determining that the keeping type is waterless keeping, the water temperature in the keeping space 111 is adjusted to the target temperature suitable for the survival of fresh food; the lifting adjustment mechanism 130 is controlled to drive the storage container 120 to sink into the water; the third delivery pipe 1423 is controlled to be opened so as to oxygenate the water through the air stone 1424.

[0079] Optionally, before controlling the lifting and adjusting mechanism 130, the refrigerator can also obtain the volume of fresh food in the storage container 120, determine the target water level based on the volume, and then add water to or drain water from the preservation space 111 according to the target water level. In this way, the appropriate amount of water can be matched to the food to ensure sufficient water and improve the preservation effect.

[0080] The refrigerator control method provided in this application determines the preservation type based on the type of food, which improves the intelligence of the refrigerator's fresh food preservation and is in line with the current development trend of smart homes.

[0081] This application also provides a control device applied to the aforementioned refrigerator. For an example, please refer to... Figure 6 , Figure 6 This is a schematic diagram of the control device provided in an embodiment of this application. The control device 20 includes an acquisition module 20a, a processing module 20b, and a control module 20c.

[0082] The acquisition module 20a is used to acquire the types of fresh ingredients in the storage container 120; the processing module 20b is used to determine the preservation type according to the type, including preservation with water and preservation without water; and the control module 20c is used to control the lifting and adjusting action of the lifting and adjusting mechanism 130 based on the preservation type.

[0083] The control device 20 provided in this application embodiment can achieve the same technical effect as the above control method, and will not be described in detail here.

[0084] This application also provides a storage medium storing a computer program thereon, which executes the control method in any of the embodiments when it runs.

[0085] For example, the aforementioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical discs (e.g., CDs (Compact Disks), DVDs (Digital Versatile Disks), etc.), smart cards and flash memory devices (e.g., EPROMs (Erasable Programmable Read Only Memory), cards, sticks, or key drives, etc.). The various computer-readable storage media described in the embodiments of this application may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0086] The above provides a detailed description of the fresh food preservation component of the refrigerator, the refrigerator, and the control method thereof provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A fresh food preservation component for a refrigerator, characterized in that, include: The water preservation room is a space designed to hold water for water preservation. A storage container is vertically mounted in the preservation space to hold fresh ingredients, and the bottom of the storage container has several drainage holes. A lifting and adjusting mechanism is used to drive the storage container to rise and fall relative to the living space, so that the storage container is at least partially submerged in water or leaves the water surface.

2. The fresh food preservation component of the refrigerator according to claim 1, characterized in that, The storage container is equipped with a sliding component, and the preservation chamber is also provided with a sliding groove that connects to the preservation space. The sliding component is slidably connected to the sliding groove so that the storage container can be raised and lowered in the preservation space.

3. The fresh food preservation component of the refrigerator according to claim 2, characterized in that, The lifting and adjusting mechanism includes: The power unit is located in the keep-alive chamber; The transmission module includes an output end and an input end. The output end is connected to the sliding member, and the input end is connected to the output shaft of the power unit. The power unit is adapted to drive the storage container to move up and down relative to the storage space through the transmission module.

4. The fresh food preservation component of the refrigerator according to any one of claims 1-3, characterized in that, It also includes a controlled atmosphere device, which includes a gas separation unit and a first gas delivery module that are interconnected. The gas separation unit is used to separate oxygen from the internal air, and the first gas delivery module is used to deliver the oxygen to the living space.

5. The fresh food preservation component of the refrigerator according to claim 4, characterized in that, The refrigerator includes a fruit and vegetable compartment for storing fruits and vegetables. The controlled atmosphere device also includes a second gas delivery module connected to the gas separation unit. The gas separation unit is used to separate nitrogen from the internal air. The second gas delivery module is used to deliver or stop delivering the nitrogen to the fruit and vegetable compartment.

6. The fresh food preservation component of the refrigerator according to claim 4, characterized in that, The first gas delivery module includes a first delivery pipe, a second delivery pipe, a third delivery pipe, and a gas stone. The inlet end of the first delivery pipe is connected to the gas separation unit. The inlets of the second and third delivery pipes are both connected to the outlet end of the first delivery pipe. The outlet end of the second delivery pipe is connected to the storage container. The gas stone is disposed in the preservation space and located outside the storage container. The outlet end of the third delivery pipe is connected to the inlet end of the gas stone.

7. The fresh food preservation component of the refrigerator according to any one of claims 1-3, characterized in that, It also includes a magnetic field sterilization device, which is installed on the preservation chamber and used to apply a magnetic field to the preservation space.

8. The fresh food preservation component of the refrigerator according to any one of claims 1-3, characterized in that, It also includes a humidification device, which is installed on the preservation chamber and is used to spray atomized water into the storage container.

9. A refrigerator, characterized in that, Includes the fresh food preservation component as described in any one of claims 1-8.

10. A control method, characterized in that, The control method, applied to the refrigerator as described in claim 9, comprises: To determine the types of fresh ingredients in the container; Based on the aforementioned categories, the survival type is determined, which includes hydroponic survival and hydroless survival. The lifting and adjusting action of the lifting and adjusting mechanism is controlled based on the aforementioned keep-alive type.

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