Fresh food keep-alive assembly of refrigerator, refrigerator and control method of refrigerator

Abstract

The invention provides a fresh food keep-alive assembly of a refrigerator, the refrigerator and a control method of the refrigerator, the fresh food keep-alive assembly comprises a keep-alive chamber, a storage container and a lifting adjusting mechanism, and a keep-alive space used for containing water is formed in the keep-alive chamber; the storage container is arranged in the keep-alive space in a liftable mode and used for containing fresh food materials, and 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 ascend and descend relative to the keep-alive space, so that at least part of the storage container sinks into water or leaves the water surface. According to the fresh food keep-alive assembly, the lifting adjusting structure is used for driving the storage container to leave the water surface or at least partially sink into water, efficient switching between the water keep-alive state and the water-free keep-alive state of the fresh food keep-alive assembly can be achieved, and frequent water injection and water drainage of the keep-alive chamber can be avoided; therefore, waste of water resources and excessive loss of the water injection mechanism and the water drainage mechanism are prevented, and the service life of the fresh food keep-alive assembly is prolonged.

Description

Technical Field

[0001] The present application belongs to the technical field of refrigerators, and in particular relates to a fresh-keeping component of a refrigerator, a refrigerator and a control method thereof. Background Art

[0002] As living standards improve, people have higher and higher requirements for the freshness of fresh food, and thus higher and higher requirements for the freshness preservation performance of refrigerators. If users do not cook fresh food immediately after buying it, the activity of the food will be greatly reduced during the storage process, affecting the taste when using it.

[0003] In the prior art, there are two types of food preservation technologies in refrigerators: water preservation and water-free preservation. Different preservation technologies are suitable for different types of fresh food. At present, some refrigerators on the market are equipped with fresh-keeping drawers, which can only switch between water preservation and water-free preservation by filling water into the drawer or draining the water in the drawer, resulting in low efficiency of function switching and easy waste of water. Summary of the invention

[0004] The embodiments of the present application provide a freshness-keeping component of a refrigerator, a refrigerator and a control method thereof, which can solve the technical problem of low switching efficiency between a water-keeping function and a water-free keeping function in a refrigerator.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A fresh food preservation component for a refrigerator, comprising:

[0007] A survival chamber is formed with a survival space for holding water;

[0008] A storage container is escalably disposed in the living space and is used to hold fresh food. A plurality of drainage holes are provided at the bottom of the storage container.

[0009] The lifting and adjusting mechanism is used to drive the storage container to rise and fall relative to the survival space so that the storage container is at least partially submerged in water or leaves the water surface.

[0010] In some embodiments, the storage container is provided with a sliding member, and the survival chamber is further provided with a slide groove connected to the survival space, and the sliding member is slidably connected to the slide groove so that the storage container can be raised and lowered in the survival space.

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

[0012] A power unit, arranged in the keep-alive chamber;

[0013] The transmission module comprises an output end and an input end, wherein 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 suitable for driving the storage container to rise and fall relative to the survival space through the transmission module.

[0014] In some embodiments, an atmosphere control device is also included, 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 gas delivery module is used to deliver the oxygen to the survival space.

[0015] In some embodiments, the refrigerator includes a fruit and vegetable chamber, which is used to store fruits and vegetables. The atmosphere control device also includes a second gas delivery module connected to the gas separation unit, and the gas separation unit is also 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 chamber.

[0016] In some embodiments, the first gas delivery module includes a first delivery pipeline, a second delivery pipeline, a third delivery pipeline and an air stone, the air inlet end of the first delivery pipeline is connected to the gas separation unit, the air inlet ends of the second delivery pipeline and the third delivery pipeline are both connected to the air outlet end of the first delivery pipeline, the air outlet end of the second delivery pipeline is connected to the storage container, the air stone is arranged in the survival space and is located outside the storage container, and the air outlet end of the third delivery pipeline is connected to the air inlet end of the air stone.

[0017] In some embodiments, the fresh food preservation component further includes a magnetic field sterilization device, which is installed on the preservation chamber and is used to apply a magnetic field to the preservation space.

[0018] In some embodiments, the fresh food preservation component further includes a humidifying device, which is installed on the preservation chamber and is used to spray atomized water into the storage container.

[0019] A refrigerator comprises the above-mentioned fresh food preservation component.

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

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

[0022] Determine a keep-alive type according to the type, wherein the keep-alive type includes keep-alive with water and keep-alive without water;

[0023] The lifting and lowering adjustment action of the lifting and lowering adjustment mechanism is controlled based on the keep-alive type.

[0024] The fresh-keeping component of the refrigerator, the refrigerator and the control method thereof provided in the embodiment of the present application can realize the switching between the water-keeping state and the water-free state of the fresh-keeping component by adding a storage container and a lifting and adjusting mechanism, and using the lifting and adjusting structure to drive the storage container to leave the water surface or at least partially sink into the water. In this way, not only can the switching efficiency of the fresh-keeping state of the fresh-keeping component be greatly improved, but also frequent water injection and drainage of the fresh-keeping chamber can be avoided, thereby preventing the waste of water resources and excessive wear and tear on the water injection mechanism and the drainage mechanism, and extending the service life of the fresh-keeping component. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

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

[0027] Figure 1 A schematic diagram of the structure of a fresh food preservation component provided in an embodiment of the present application.

[0028] Figure 2 A schematic diagram of the structure of a storage container provided in an embodiment of the present application.

[0029] Figure 3 for Figure 1 The structural schematic shown is an enlarged view of area B.

[0030] Figure 4 A schematic structural diagram of a refrigerator provided in an embodiment of the present application.

[0031] Figure 5 A flow chart of a control method provided in an embodiment of the present application.

[0032] Figure 6 A schematic diagram of the structure of a control device provided in an embodiment of the present application.

[0033] Description of reference numerals:

[0034] 10. Refrigerator; 20. Control device;

[0035] 100, fresh food preservation component; 200, fruit and vegetable chamber; 20a, acquisition module; 20b, processing module; 20c, control module;

[0036] 110. Life-keeping chamber; 120. Storage container; 130. Lifting and lowering mechanism; 140. Gas conditioning device; 150. Magnetic field sterilization device; 160. Humidification device; 170. Water inlet;

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

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

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with 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 of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are 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", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

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

[0042] The use of "suitable for" or "configured to" in this application is meant to be open and inclusive language, which does not exclude devices that are suitable for or configured to perform additional tasks or steps. In addition, the use of "based on" is meant to be open and inclusive, because the process, step, calculation or other action "based on" one or more stated conditions or values ​​can be based on additional conditions or values ​​beyond the stated values ​​in practice.

[0043] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0044] The present application embodiment provides a refrigerator freshness preservation component, for example, please refer to Figure 1 , Figure 1 The fresh food preservation component 100 includes a preservation chamber 110 , a storage container 120 and a lifting and lowering mechanism 130 .

[0045] Among them, the survival chamber 110 forms a survival space 111 for holding water; the storage container 120 is arranged in the survival space 111 in a liftable manner to accommodate fresh food, and a plurality of drainage holes 121 are opened at the bottom of the storage container 120; the lifting and adjusting mechanism 130 is used to drive the storage container 120 to rise and fall relative to the survival space 111, so that the storage container 120 is at least partially submerged in water or leaves the water surface.

[0046] It should be noted that fresh ingredients can include aquatic products, meat, fruits and vegetables, and other ingredients that need to be kept fresh. Water-based preservation and water-free preservation are two different preservation technologies. Water-free preservation mainly utilizes the physiological characteristics of fresh ingredients, and is achieved by adjusting their respiratory metabolism, inhibiting the growth of microorganisms, and other methods. For example, by lowering the temperature of the ingredients, the ingredients enter a state similar to dormancy, thereby reducing their metabolic rate. Water-based preservation is to create a water environment suitable for the survival of ingredients in the refrigerator for the storage of ingredients. The suitable water environment includes suitable water temperature, dissolved oxygen content, pH value, hardness and other water quality parameters. Its purpose is to simulate the water conditions for the natural survival of ingredients as much as possible, thereby reducing stress responses in non-natural environments and prolonging survival time. Based on the user's requirements for the survival time of the ingredients and the specific types of ingredients, the suitable preservation methods are not the same.

[0047] In the actual application process, firstly, the preservation function for the fresh food in the current storage container 120 is determined, and the preservation function includes water preservation and water-free preservation, and then it is determined whether it is necessary to switch the preservation state of the fresh food preservation component 100; if it is necessary to switch the fresh food preservation component 100 from the water-free 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 submerged in water, and the water is discharged from the drain hole 111. 21 enters the storage container 120 to keep the fresh food in the storage container 120 alive with water; if it is necessary to switch the fresh food keeping component 100 from the state of keeping fresh with water to the state of keeping fresh without water, the storage container 120 is driven to rise relative to the keeping alive space 111 by the lifting and adjusting mechanism 130, so that the storage container 120 leaves the water surface, and the water in the storage container 120 flows out from the drain hole 121, so that the storage container 120 is separated from the water, and the fresh food in the storage container 120 is kept alive without water.

[0048] The fresh-keeping component 100 of the refrigerator provided in the embodiment of the present application can realize the switching between the water-keeping state and the water-free keeping state of the fresh-keeping component 100 by adding a storage container 120 and a lifting and adjusting mechanism 130, and using the lifting and adjusting structure to drive the storage container 120 to leave the water surface or at least partially sink into the water. In this way, not only can the switching efficiency of the keeping state of the fresh-keeping component 100 be greatly improved, but also frequent water injection and drainage of the keeping chamber 110 can be avoided, thereby preventing the waste of water resources and excessive wear and tear on the water injection mechanism and the drainage mechanism, and extending the service life of the fresh-keeping component 100.

[0049] Optionally, see Figure 2 , Figure 2A schematic diagram of the structure of a storage container provided in an embodiment of the present application. The storage container 120 includes a bottom wall 122 and a circumferential side wall 123 arranged around 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; a plurality of drain holes 121 are provided on the bottom wall 122. Preferably, the plurality of drain holes 121 are distributed in an array on the bottom wall 122. In some other embodiments, the drain holes 121 may also be provided on the circumferential side wall 123, so that the water intake and drainage speed of the storage container 120 can be increased. The storage container 120 may be made of stainless steel, fiberglass, ceramic, plastic or other corrosion-resistant materials.

[0050] In some embodiments, the storage container 120 is provided with a sliding member 124, and the survival chamber 110 is also provided with a slide groove 112 connected to the survival space 111, and the sliding member 124 is slidably connected to the slide groove 112, so that the storage container 120 can be raised and lowered in the survival space 111. Optionally, the sliding member 124 is connected to the circumferential side wall 123 of the storage container 120, and correspondingly, the slide groove 112 is provided on the inner side wall of the survival chamber 110 and extends in the up-down direction. Preferably, the sliding members 124 are respectively connected to the two oppositely arranged side walls of the storage container 120, so that the stability of the storage container 120 during the lifting movement can be improved.

[0051] In some embodiments, see Figure 3 , Figure 3 A schematic diagram of the structure of the lifting and adjusting mechanism provided in an embodiment of the present application. The lifting and adjusting mechanism 130 includes a power unit 131 and a transmission module 132. The power unit 131 is disposed in the survival chamber 110; the transmission module 132 includes an output end and an input end, the output end is connected to the sliding member 124, and the input end is connected to the output shaft of the power unit 131, and the power unit 131 is suitable for driving the storage container 120 to rise and fall relative to the survival space 111 through the transmission module 132. Among them, the power unit 131 performs corresponding driving actions in response to the driving signal of the controller, such as rotating the output shaft forward or reversely, and then transmitting the sliding member 124 to slide up or down in the slide groove 112 through the transmission module 132. Exemplarily, the power unit 131 is a rotating motor, and the transmission module 132 includes a gear 1321 and a linear rack 1322. The gear 1321 is fixedly mounted on the output shaft of the power unit 131; the linear rack 1322 is meshed with the gear 1321 and fixedly connected to the sliding member 124; the power unit 131 drives the linear rack 1322 to move up and down in the survival chamber 110 through the gear 1321, and then the linear rack 1322 drives the sliding member 124 to slide up or down in the slide groove 112.

[0052] In some other embodiments, the lifting and adjusting mechanism 130 may include an elastic member, a magnetic member and an electromagnetic coil, wherein the two ends of the elastic member are respectively fixedly connected to the storage container 120 and the survival chamber 110, and extend in the up-down direction, and are used to apply an elastic force to the storage container 120; the magnetic member is fixed to the storage container 120, and the electromagnetic coil is fixed to the survival chamber 110; the electromagnetic coil is suitable for generating a magnetic field when energized, and the magnetic field is suitable for generating a magnetic force on the magnetic member, so that the magnetic member applies a force balanced with the elastic force to the storage container 120; wherein the intensity of the magnetic field generated by the electromagnetic coil is adjustable. In practical applications, when the intensity of the current energized by the electromagnetic coil is changed, the intensity of the magnetic field generated by the electromagnetic coil changes, thereby changing the magnitude of the magnetic force generated on the magnetic member, so that the magnetic member moves in the up-down direction relative to the electromagnetic coil, and then the magnetic member drives the storage container 120 to move relative to the survival space 111, until the elastic force from the elastic member and the force from the magnetic member on the storage container 120 reach a balance again, and thus, the lifting and adjusting mechanism 130 for the storage container 120 is completed.

[0053] In some embodiments, the fresh food preservation component 100 further includes an air conditioning device 140, which includes a gas separation unit 141 and a first gas delivery module 142 that are interconnected, 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 can be understood that by delivering oxygen to the preservation space 111, a gas environment suitable for the survival of fresh food can be simulated for the fresh food to prevent it from losing its activity due to lack of oxygen.

[0054] Optionally, the first gas delivery module 142 includes a first delivery pipeline 1421, a second delivery pipeline 1422, a third delivery pipeline 1423 and an air stone 1424. The air inlet end of the first delivery pipeline 1421 is connected to the gas separation unit 141, the air inlet ends of the second delivery pipeline 1422 and the third delivery pipeline 1423 are both connected to the air outlet end of the first delivery pipeline 1421, the air outlet end of the second delivery pipeline 1422 is connected to the storage container 120, the air stone 1424 is arranged in the survival space 111 and is located outside the storage container 120, and the air outlet end of the third delivery pipeline 1423 is connected to the air inlet end of the air stone 1424. For example, valves are arranged on the second delivery pipeline 1422 and the third delivery pipeline 1423, and the valves can be opened and closed to make the gas delivery pipelines in which they are located conductive or non-conductive, so that the gas delivery pipelines can deliver or stop delivering oxygen.

[0055] Among them, the gas separation unit 141 may include a molecular sieve, which is used to separate oxygen from the air. Molecular sieve is a material with a uniform microporous structure, which is mainly based on the principle of physical adsorption to separate oxygen and nitrogen. The size of the micropores inside the molecular sieve is comparable to the size of the molecule, and can distinguish different gas molecules. When a mixed gas such as air passes through an adsorption column equipped with a molecular sieve, under appropriate pressure and temperature conditions, nitrogen molecules are preferentially adsorbed in the micropores of the molecular sieve, while oxygen molecules are easier to pass through, thereby obtaining a gas with a relatively high oxygen concentration at the outlet. As the adsorption proceeds, the molecular sieve is saturated with nitrogen adsorption and needs to be regenerated to continue working. Desorption is mainly achieved by reducing pressure or increasing temperature. In the pressure swing adsorption process, the pressure is mainly reduced to detach nitrogen molecules from the micropores and restore the adsorption capacity of the molecular sieve, thereby separating oxygen and nitrogen in the air for application.

[0056] In some embodiments, see Figure 4 , Figure 4 A schematic diagram of the structure of a refrigerator provided in an embodiment of the present application. The refrigerator 10 also includes a fruit and vegetable chamber 200, which is used to store fruits and vegetables; the gas conditioning device 140 of the fresh-keeping component 100 also includes a second gas delivery module 143 connected to the gas separation unit 141, and 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 deliver or stop delivering nitrogen to the fruit and vegetable chamber 200. It can be understood that, on the one hand, by filling the fruit and vegetable chamber 200 with nitrogen, the concentration of oxygen in the fruit and vegetable chamber 200 can be reduced, thereby inhibiting the respiration of fruits and vegetables and inhibiting the reproduction of microorganisms in the fruit and vegetable chamber 200, so as to extend the shelf life of fruits and vegetables and reduce the risk of rotting and deterioration of fruits and vegetables; on the other hand, the gas conditioning device 140 separates oxygen from the air to supply the keeping-alive chamber 110, and at the same time separates nitrogen to supply the fruit and vegetable chamber 200, killing two birds with one stone, with high gas conditioning efficiency and good effect.

[0057] Optionally, the second gas delivery module 143 includes a fourth delivery pipeline 1431 and a valve body 1432 arranged on the fourth delivery pipeline 1431, the air inlet end of the fourth delivery pipeline 1431 is connected to the gas separation unit 141, and the air 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 pipeline 1431 conductive or blocked, so that the fourth delivery pipeline 1431 can deliver or stop delivering nitrogen.

[0058] In some embodiments, 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 is used to apply a magnetic field to the preservation space 111. Optionally, the magnetic field sterilization device 150 is arranged 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. The magnetic field sterilization device 150 can damage the cell membrane, protein and DNA of the microbial cells in the preservation space 111 by applying a magnetic field to the preservation space 111, and increase the temperature of the microbial cells through the magnetothermal effect to achieve a sterilization effect on the preservation space 111, and reduce the rate of decay 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 water temperature suitable for the survival of food ingredients and extend the freshness of food ingredients.

[0059] In some embodiments, Figure 1 As shown, the fresh food preservation assembly 100 further includes a humidifying device 160, which is installed on the preservation chamber 110 and is used to spray atomized water into the storage container 120. Optionally, the humidifying device 160 is installed on the top of the preservation chamber 110, and the nozzle is arranged toward the opening of the storage container 120. It can be understood that by spraying atomized water into the storage container 120, the gas humidity in the environment where the food is located can be adjusted to provide a gas environment suitable for the survival of the food, thereby extending the freshness of the food.

[0060] Optionally, the fresh food preservation component 100 may also be provided with a drainage mechanism, which is disposed in the preservation space 111 and is suitable for cleaning the excrement produced by the fresh food in the water 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 injection port 170 connecting the survival space 111 with the outside, and the water injection port 170 is suitable for conveying external water to the survival space 111 .

[0062] The fresh-keeping component 100 of the refrigerator provided in the embodiment of the present application can realize the switching between the water-keeping state and the water-free keeping state of the fresh-keeping component 100 by adding a storage container 120 and a lifting and adjusting mechanism 130, and using the lifting and adjusting structure to drive the storage container 120 to leave the water surface or at least partially sink into the water. In this way, not only can the switching efficiency of the keeping state of the fresh-keeping component 100 be greatly improved, but also frequent water injection and drainage of the keeping chamber 110 can be avoided, thereby preventing the waste of water resources and excessive wear and tear on the water injection mechanism and the drainage mechanism, and extending the service life of the fresh-keeping component 100.

[0063] The embodiment of the present application also provides a refrigerator, which includes the fresh food preservation component in any of the above embodiments. The refrigerator can be a single-door, double-door, side-by-side, French, cross refrigerator or other types of refrigerators. The fresh food preservation component 100 can be arranged in the refrigerator compartment of the refrigerator. The refrigeration system of the refrigerator can deliver cold energy to the preservation room to adjust the temperature of the preservation space, thereby realizing the preservation function of the fresh food preservation component.

[0064] The refrigerator provided in the embodiment of the present application, based on the structure of the liftable storage container of the fresh-food preservation component, can achieve efficient switching between the water-preservation function and the water-free fresh-food preservation function, and there is no need to frequently perform water injection and drainage operations on the fresh-food preservation component, which can save water resources, reduce structural losses, and provide users with a better usage experience.

[0065] The present application also provides a control method, which is applied to the above refrigerator. Figure 5 , Figure 5 This is a flow chart of a control method provided in an embodiment of the present application. The control method includes the following steps S101 to S103:

[0066] Step S101: obtaining the types of fresh food in the storage container 120;

[0067] Among them, the types of fresh food in the storage container 120 can be manually input by the user, or can be obtained by the refrigerator's own intelligent recognition. The user can input it through the refrigerator's operation panel, or through a mobile terminal that is connected to the refrigerator. Optionally, after the refrigerator identifies the types of fresh food in the storage container 120, it can also send a confirmation query to the user through the refrigerator's display and control device. If the user is sure that the identification is correct or the user has not issued a confirmation instruction after a preset time, the next step is executed; if the user finds that there is an error in the identification, the type of food can be corrected through the display and control device, and a confirmation instruction can be issued after confirming that the correction is completed, so that the refrigerator can execute the next step.

[0068] The refrigerator may use one or more of image recognition technology, RFID tag recognition technology, smell recognition technology, sound wave recognition technology, and infrared recognition technology to intelligently identify the types of fresh food in the storage container 120. For example, an image acquisition device may be provided 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 time to sterilize the preservation space 111 to prevent the fresh food from being contaminated after being put in.

[0070] Step S102: determining a keep-alive type according to the type, the keep-alive type including keep-alive with water and keep-alive without water;

[0071] Among them, for example, a preservation database is stored in the refrigerator or the cloud platform, and the preservation database includes the correspondence between various types of food ingredients and preservation types, so that the refrigerator can determine the corresponding preservation type applicable to the food ingredient based on the type of fresh food ingredient based on the matching algorithm. For example, if the refrigerator detects that the type of fresh food ingredient is fresh aquatic product, the corresponding preservation type is determined to be preservation with water; if the refrigerator detects that the weight of the fresh food ingredient is fruit and vegetable, aquatic product that has lost its vitality, etc., the corresponding preservation type is determined to be preservation without water.

[0072] Optionally, the user can also select the keep-alive type directly on the refrigerator operation panel according to actual needs.

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

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

[0075] Exemplarily, if the survival type is water-free survival, the lifting and adjusting mechanism 130 is controlled to perform a first adjusting action to drive the storage container 120 to rise to leave the water surface; if the survival type is water-based survival, the lifting and adjusting mechanism 130 is controlled to perform a second adjusting action to drive the storage container 120 to descend to sink into the water.

[0076] Furthermore, the present application also provides an operation method for the above 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 and adjusting mechanism 130 is controlled to drive the storage container 120 to separate the container from water; the internal temperature of the storage container 120 is controlled to drop to a temperature suitable for storing fresh food; the second delivery 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 performing 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 and adjusting 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 the cold water and enters a dormant state. The operation steps of the refrigerator to activate fresh food 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 for a short period of time under specific low temperature conditions. When aquatic products such as fish and shrimp are caught, their physiological activities are still going on, consuming oxygen, generating heat and decomposing their own nutrients. Cold shock pretreatment can quickly break the physiological balance of food ingredients and inhibit physiological changes. Cold shock pretreatment can reduce their respiration rate and metabolic rate, inhibit the growth and reproduction of microorganisms, reduce enzyme activity, extend the shelf life of food, and at the same time maintain the quality and nutritional content of food to a certain extent.

[0078] The present application also provides an operating method for the above-mentioned refrigerator to perform water-based preservation: after determining that the preservation type is water-free preservation, the water temperature in the preservation space 111 is adjusted to a target temperature suitable for the survival of fresh food; the lifting and adjusting mechanism 130 is controlled to drive the storage container 120 to sink into the water; the third delivery pipeline 1423 is controlled to be connected to oxygenate the water through the air stone 1424.

[0079] Optionally, before controlling the lifting and lowering adjustment action of the lifting and lowering adjustment mechanism 130, the refrigerator can also obtain the volume of the fresh food in the storage container 120, determine the target water level according to the volume, and then fill water into the survival space 111 or drain the survival space 111 according to the target water level. In this way, the corresponding amount of water can be matched to the food, ensuring that the water amount is sufficient and improving the survival effect.

[0080] The refrigerator control method provided in the embodiment of the present application determines the preservation type according to the type of food, thereby improving the intelligence level of the refrigerator's freshness preservation and conforming to the current development trend of smart homes.

[0081] The present application also provides a control device, which is applied to the above refrigerator. Figure 6 , Figure 6 The schematic diagram of the structure of the control device provided in the embodiment of the present application is as follows: The control device 20 comprises an acquisition module 20a, a processing module 20b and a control module 20c.

[0082] Among them, the acquisition module 20a is used to obtain the type of fresh food in the storage container 120; the processing module 20b is used to determine the preservation type according to the type, and the preservation type includes water preservation and water-free preservation; 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 the embodiment of the present application can achieve the same technical effect as the above-mentioned control method, which will not be elaborated here.

[0084] An embodiment of the present application further provides a storage medium on which a computer program is stored. When the computer program is run, the control method in any embodiment is executed.

[0085] Exemplarily, the above-mentioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or magnetic tapes, etc.), optical disks (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 the present 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 is a detailed introduction to the fresh-keeping component of the refrigerator, the refrigerator and the control method thereof provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A fresh food preservation component for a refrigerator, characterized in that: include: A survival chamber is formed with a survival space for holding water; A storage container is escalably disposed in the living space and is used to hold fresh food. A plurality of drainage holes are provided at the bottom of the storage container. The lifting and adjusting mechanism is used to drive the storage container to rise and fall relative to the survival space so that the storage container is at least partially submerged in water or leaves the water surface.

2. The freshness-keeping component of the refrigerator according to claim 1, characterized in that: The storage container is provided with a sliding member, and the survival chamber is further provided with a sliding groove connected to the survival space. The sliding member is slidably connected to the sliding groove, so that the storage container can be lifted and lowered in the survival space.

3. The freshness-keeping component of the refrigerator according to claim 2, characterized in that: The lifting and lowering adjustment mechanism comprises: A power unit, arranged in the keep-alive chamber; The transmission module comprises an output end and an input end, wherein 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 suitable for driving the storage container to rise and fall relative to the survival space through the transmission module.

4. The freshness-keeping component of a refrigerator according to any one of claims 1 to 3, characterized in that: It also includes an air conditioning 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 gas delivery module is used to deliver the oxygen to the survival space.

5. The freshness-keeping component of the refrigerator according to claim 4, characterized in that: The refrigerator includes a fruit and vegetable chamber, which is used to store fruits and vegetables. The atmosphere control device also includes a second gas delivery module connected to the gas separation unit, and the gas separation unit is also 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 chamber.

6. The freshness-keeping component of the refrigerator according to claim 4, characterized in that: The first gas delivery module includes a first delivery pipeline, a second delivery pipeline, a third delivery pipeline and an air stone, the air inlet end of the first delivery pipeline is connected to the gas separation unit, the air inlet ends of the second delivery pipeline and the third delivery pipeline are both connected to the air outlet end of the first delivery pipeline, the air outlet end of the second delivery pipeline is connected to the storage container, the air stone is arranged in the survival space and is located outside the storage container, and the air outlet end of the third delivery pipeline is connected to the air inlet end of the air stone.

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

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

9. A refrigerator, characterized in that: It comprises the fresh food keeping component as described in any one of claims 1-8.

10. A control method, characterized in that: Applied to the refrigerator according to claim 9, the control method comprises: Obtaining the types of fresh food in the storage container; Determine a keep-alive type according to the type, wherein the keep-alive type includes keep-alive with water and keep-alive without water; The lifting and lowering adjustment action of the lifting and lowering adjustment mechanism is controlled based on the keep-alive type.

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