Fresh-keeping assembly, method and device, refrigerator and computer readable medium

Abstract

The invention relates to a fresh-keeping assembly, method and device, a refrigerator and a computer readable medium. The method comprises the steps that a temperature-sensitive material in a liquid state in a first liquid storage device is sprayed to the outer surface of a target object, the temperature in the first liquid storage device is not lower than a first temperature threshold value, the first temperature threshold value is the lowest temperature allowed when the temperature-sensitive material exists in the liquid state, and the target object is an object needing to be preserved; and the temperature-sensitive material is cooled in the fresh-keeping chamber, so that a fresh-keeping film covering the outer surface of the target object is formed, the temperature in the fresh-keeping chamber is not higher than a second temperature threshold value, and the second temperature threshold value is the highest temperature allowed by the temperature-sensitive material to be converted into the fresh-keeping film. According to the scheme, the liquid temperature-sensitive material is sprayed on the outer surface of the target object, and the preservative film is formed after cooling, so that the respiration and moisture loss of the object can be greatly reduced, the object is kept in a fresh state for a long time, and the technical problem that the preservation effect of the object is poor in the related technology is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigerators, and in particular to a fresh-keeping assembly, method, device, refrigerator and computer readable medium. BACKGROUND

[0002] In recent years, as people's requirements for the quality of life increase, the demand for various fruits and vegetables also gradually increases, and the requirements for the nutrition and quality of fruits and vegetables are also increasingly high. Ordinary household refrigerators mainly slow down the evaporation of water and the penetration of oxygen through low temperature, and at the same time, reduce the respiration rate of fruits and vegetables to extend the shelf life.

[0003] For example, the fruit and vegetable low-temperature fresh-keeping scheme in the prior art is as follows: first, pre-cooling the food in the refrigerator pre-cooling chamber to reduce the respiration of the food, then soaking the food in the refrigerator soaking area to broaden the super-ice temperature of the food, and then vacuuming the food in the refrigerator vacuum area and performing vacuum super-ice temperature treatment on the food to improve the storage time of the food and reduce the loss of nutrients of the food.

[0004] The above fruit and vegetable low-temperature fresh-keeping scheme can only reduce the metabolism of fruits and vegetables to a small extent, resulting in a short storage period and a fast loss of nutrients. In addition, for users, the operation steps are too complicated, the food needs to be transferred at least three times, and the transfer process needs to wait for a long time, resulting in poor user experience.

[0005] At present, there is no suitable solution to the problem that the effect of maintaining the freshness of the above-mentioned items (such as vegetables, fruits, nuts, red wine, etc.) is poor. SUMMARY

[0006] The present application provides a fresh-keeping assembly, method, device, refrigerator and computer readable medium to solve the technical problem that the effect of maintaining the freshness of items is poor in related technologies.

[0007] According to one aspect of an embodiment of the present application, the present application provides a fresh-keeping assembly, comprising: a first liquid storage device for storing a temperature-sensitive material, the temperature in the first liquid storage device is not lower than a first temperature threshold, the first temperature threshold is the lowest temperature allowed for the temperature-sensitive material to exist in a liquid state; a fresh-keeping chamber and a communication structure, the fresh-keeping chamber is in communication with the first liquid storage device through the communication structure, the fresh-keeping chamber is used to cool the temperature-sensitive material flowing from the communication structure, thereby forming a fresh-keeping film covering the outer surface of a target item, the temperature in the fresh-keeping chamber is not higher than a second temperature threshold, the second temperature threshold is the highest temperature allowed for the temperature-sensitive material to change into a fresh-keeping film, the second temperature threshold is lower than the first temperature threshold, and the target item is an item that needs to be fresh-kept.

[0008] Optionally, the temperature-sensitive material is a hydrogel, the preservative film is a hydrogel film, and the fresh-keeping assembly further comprises a second liquid storage device in communication with the fresh-keeping chamber through the communication structure, the second liquid storage device being configured to store cleaning liquid; and the communication structure is configured to introduce the cleaning liquid in the second liquid storage device into the fresh-keeping chamber, thereby cleaning the hydrogel film covering the outer surface of the target object.

[0009] Optionally, the fresh-keeping assembly further comprises an ultrasonic generator installed at the bottom of the fresh-keeping chamber, the ultrasonic generator being configured to clean the target object again using the cleaning liquid at the bottom of the fresh-keeping chamber.

[0010] Optionally, the communication structure comprises a three-way valve, a water pump, a multi-way valve, and a plurality of spray heads, the first input end of the three-way valve being in communication with the first liquid storage device, the second input end of the three-way valve being in communication with the second liquid storage device, the three-way valve being configured to select the first input end as the input after the target object is placed or select the second input end as the input when the target object needs to be taken out, the input end of the water pump being in communication with the output end of the three-way valve, the water pump being configured to drive the flow of liquid, the input end of the multi-way valve being in communication with the output end of the water pump, each output end of the multi-way valve being in communication with a spray head, the multi-way valve being configured to spray the hydrogel or the cleaning liquid using the selected spray head.

[0011] Optionally, the fresh-keeping chamber comprises a fresh-keeping chamber drawer, the fresh-keeping chamber drawer being divided into a plurality of areas inside, the plurality of areas being configured to store different types of objects, and a fresh-keeping chamber cover plate installed above the fresh-keeping chamber drawer, the fresh-keeping chamber cover plate being internally provided with a plurality of first spray heads facing the fresh-keeping chamber drawer, there being at least one first spray head above each area of the fresh-keeping chamber drawer, the plurality of spray heads comprising the plurality of first spray heads.

[0012] Optionally, the fresh-keeping chamber further comprises: a water collecting glass and a telescopic rod, the water collecting glass is installed below the fresh-keeping chamber drawer, a plurality of ultrasonic wave generators are installed on the water collecting glass, the telescopic rod is installed below the water collecting glass, and the telescopic rod is used to push the water collecting glass to move in the axial direction of the telescopic rod; wherein the bottom of the fresh-keeping chamber drawer is provided with openings matched with the ultrasonic wave generators, and the fresh-keeping chamber drawer is provided with at least one opening in each area, and the number of the openings in the bottom of the fresh-keeping chamber drawer is the same as that of the ultrasonic wave generators; when it is needed to remove the water condensation film covering the outer surface of the target object, the telescopic rod pushes the water collecting glass to move upward in the axial direction of the telescopic rod, the ultrasonic wave generators enter the fresh-keeping chamber drawer through the openings in the bottom of the fresh-keeping chamber drawer, so that the openings in the bottom of the fresh-keeping chamber drawer are sealed; when it is needed to drain the liquid in the fresh-keeping chamber, the telescopic rod pushes the water collecting glass to move downward in the axial direction of the telescopic rod, and the liquid flows out of the openings in the bottom of the fresh-keeping chamber drawer.

[0013] Optionally, the fresh-keeping chamber further comprises: a control panel used to control the fresh-keeping assembly; first and second drawer guide rails installed on the two sides of the fresh-keeping chamber drawer and used as sliding mechanisms of the fresh-keeping chamber; wherein the side of the first drawer guide rail facing the fresh-keeping chamber drawer is provided with a second spray head used for flushing and cleaning the bottom of the fresh-keeping chamber drawer.

[0014] According to another aspect of the embodiments of the present application, the present application further provides a fresh-keeping method, comprising: spraying liquid temperature-sensitive material in a first liquid storage device to the outer surface of a target object, wherein the temperature in the first liquid storage device is not lower than a first temperature threshold, the first temperature threshold is the lowest temperature allowed for the temperature-sensitive material to exist in a liquid state, and the target object is an object that needs to be fresh-kept; cooling the temperature-sensitive material in a fresh-keeping chamber to form a fresh-keeping film covering the outer surface of the target object, wherein the temperature in the fresh-keeping chamber is not higher than a second temperature threshold, the second temperature threshold is the highest temperature allowed for the temperature-sensitive material to change into the fresh-keeping film, and the second temperature threshold is lower than the first temperature threshold.

[0015] Optionally, the temperature-sensitive material is a hydrogel, and spraying liquid temperature-sensitive material in the first liquid storage device to the outer surface of the target object comprises: determining a target area in a plurality of areas of the fresh-keeping chamber, wherein the target area is a user-specified area; and calling a spray head above the target area to spray liquid hydrogel to the outer surface of the target object in the target area.

[0016] Optionally, the fresh-keeping film is a hydrogel film, after the fresh-keeping film covering the outer surface of the target object is formed by lowering the temperature of the temperature-sensitive material in the fresh-keeping chamber, the method further comprises: spraying the cleaning liquid in the second liquid storage device to the outer surface of the target object, so as to remove the hydrogel film covering the outer surface of the target object; and controlling the ultrasonic generator installed at the bottom of the fresh-keeping chamber to clean the target object again.

[0017] According to another aspect of the embodiments of the present application, the present application further provides a fresh-keeping device, comprising: a spraying unit configured to spray a temperature-sensitive material in a liquid state in a first liquid storage device to an outer surface of a target object, wherein a temperature in the first liquid storage device is not lower than a first temperature threshold, the first temperature threshold being a minimum temperature allowed for the temperature-sensitive material to exist in a liquid state, and the target object being an object that needs to be fresh-kept; and a fresh-keeping unit configured to lower the temperature of the temperature-sensitive material in a fresh-keeping chamber, so as to form a fresh-keeping film covering the outer surface of the target object, wherein a temperature in the fresh-keeping chamber is not higher than a second temperature threshold, the second temperature threshold being a maximum temperature allowed for the temperature-sensitive material to change into the fresh-keeping film, and the second temperature threshold being lower than the first temperature threshold.

[0018] According to another aspect of the embodiments of the present application, the present application provides a refrigerator comprising the fresh-keeping assembly or the fresh-keeping device described above, and further comprising a memory, a processor, a communication interface and a communication bus, the memory storing a computer program executable on the processor, the memory, the processor and the communication interface being in communication through the communication bus, and the processor implementing the steps of the method described above when executing the computer program.

[0019] According to another aspect of the embodiments of the present application, the present application further provides a computer readable medium having a non-volatile program code executable by a processor, the program code causing the processor to execute the method described above.

[0020] The above technical solutions provided by the embodiments of the present application have the following advantages compared with related art:

[0021] The fresh-keeping method provided in the application performs the following steps during operation: spraying the temperature-sensitive material in liquid state in the first liquid storage device to the outer surface of the target object, the temperature in the first liquid storage device is not lower than the first temperature threshold, the first temperature threshold is the lowest temperature allowed for the temperature-sensitive material to exist in liquid state, and the target object is an object that needs to be kept fresh; cooling the temperature-sensitive material in the fresh-keeping chamber, so as to form a fresh-keeping film covering the outer surface of the target object, the temperature in the fresh-keeping chamber is not higher than the second temperature threshold, the second temperature threshold is the highest temperature allowed for the temperature-sensitive material to change into the fresh-keeping film, and the second temperature threshold is lower than the first temperature threshold. According to the scheme, the liquid temperature-sensitive material is sprayed to the outer surface of the target object, and the fresh-keeping film is formed after cooling, which can greatly reduce the respiration and water loss of the object and maintain the object in a fresh state for a long time, thereby solving the technical problem of poor effect of maintaining the freshness of the object in the related art. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the application or the related art, the accompanying drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without creative labor.

[0024] Figure 1 A schematic diagram of a refrigerator according to an embodiment of the application;

[0025] Figure 2 A partial schematic diagram of a refrigerator according to an embodiment of the application;

[0026] Figure 3 A schematic diagram of a fresh-keeping assembly according to an embodiment of the application;

[0027] Figure 4 A schematic diagram of a fresh-keeping assembly according to an embodiment of the application;

[0028] Figure 5 A flowchart of a fresh-keeping method according to an embodiment of the application;

[0029] Figure 6 A block diagram of an optional fresh-keeping device according to an embodiment of the application;

[0030] Figure 7 An optional electronic device structure schematic diagram according to an embodiment of the application. DETAILED DESCRIPTION

[0031] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a 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 of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0032] In the subsequent description, the suffixes such as "module", "component", or "unit" used to represent elements are only for the convenience of description of the present application, and have no specific meaning in itself. Therefore, "module" and "component" can be used interchangeably.

[0033] In the embodiments of the present application, the above-mentioned preservation method can be applied to the preservation assembly of the present application, which can exist in the form of a separate product (similar to a small refrigerator such as a cosmetic refrigerator, a breast milk refrigerator, etc.), or as a part of other products, such as a refrigerator as shown in Figure 1 The preservation assembly of the present application can be applied to the preservation chamber or the refrigeration chamber of a large refrigerator (which includes a refrigeration chamber 1 and a freezing chamber 2, the refrigeration chamber includes a liquid storage chamber 11 and a preservation chamber 12, and the liquid storage chamber 11 at least includes a first liquid storage device 111) as shown in order to ensure the temperature of the liquid storage chamber 11. For reference Figure 2 (i.e. Figure 1 In the area I in the above-mentioned embodiment, the heat exchanger 4 is attached to the inner side of the cabinet shell 3, and the part of the heat exchanger passing through the liquid storage chamber is bent and attached to the outer side of the inner wall of the liquid storage chamber, so that the heat exchanger can be used to heat the liquid storage chamber and keep it at a higher temperature. The preservation assembly of the present application at least includes:

[0034] The first liquid storage device 111 can exist in the form of a box, a jar, etc., and is used to store temperature-sensitive materials. The minimum temperature allowed for the temperature-sensitive materials to exist in a liquid state is the first temperature threshold. In order to ensure that the temperature-sensitive materials in the first liquid storage device always exist in a liquid state, the temperature in the first liquid storage device must not be lower than the first temperature threshold.

[0035] It should be noted that the above-mentioned temperature-sensitive materials are materials that present a liquid state at high temperature and a film state at low temperature, and do not cause pollution to the target object. For example, the temperature-sensitive materials can be hydrogel films or other materials with similar properties. Here, the high temperature and the low temperature are relative temperatures. The high temperature does not cause any damage to the target object, for example, 30° or 25°. The low temperature generally refers to the working temperature of the refrigeration chamber of a refrigerator, for example, 0° to 5°.

[0036] The fresh-keeping chamber 12 and the connecting structure, the fresh-keeping chamber is communicated with the first liquid storage device through the connecting structure, the temperature of the fresh-keeping chamber itself is low, the temperature of the temperature-sensitive material flowing from the connecting structure into the fresh-keeping chamber can be lowered by using the low temperature of the fresh-keeping chamber itself, so as to form a fresh-keeping film covering the outer surface of the target object, so that the target object can be preserved through the fresh-keeping film, and the temperature in the fresh-keeping chamber is not higher than a second temperature threshold, the second temperature threshold is the highest temperature allowed for the temperature-sensitive material to change into the fresh-keeping film, and the second temperature threshold is lower than the first temperature threshold.

[0037] In the above scheme, the connecting structure has two functions, one is to guide the temperature-sensitive material from the first liquid storage device to the fresh-keeping chamber, and the other is to cover the surface of the target object with the temperature-sensitive material. For example, the connecting structure can be a pipeline, which is connected between the first liquid storage device and the fresh-keeping chamber. When the temperature-sensitive material flows into the fresh-keeping chamber under the action of gravity, it can naturally flow through the surface of each target object. In order to be more uniform, a spray head can be installed at the end, so that the temperature-sensitive material can be sprayed more uniformly to the outer surface of the object. The target object is an object that needs to be preserved, such as vegetables, fruits, nuts, red wine, skin care products, dry goods, etc. The preservation of the object generally requires maintaining its humidity, temperature, and reducing its respiration. Since the temperature of the fresh-keeping chamber is lower than the highest temperature allowed for the temperature-sensitive material to change into the fresh-keeping film (the second temperature threshold), the fresh-keeping chamber can use its own temperature to lower the temperature of the temperature-sensitive material, so that it changes into a fresh-keeping film covering the surface of the target object, thereby maintaining its moisture and reducing its respiration rate, thereby achieving preservation of the target object and prolonging its shelf life.

[0038] In the following, the temperature-sensitive material is taken as a hydrogel, and the fresh-keeping film is taken as a hydrogel film formed after the hydrogel is cooled. The hydrogel film (also known as a water-soluble film or a hydrogel film) uses a special material that can dissolve in water to make a thin film to wrap food. This preservation scheme has the following advantages: 1) environmental protection: the hydrogel film is usually made of degradable materials; 2) good preservation effect: the hydrogel film can effectively control the evaporation of water on the surface of the food, and block the oxygen in the external air from entering, thereby slowing down the metabolism rate of the food and prolonging the freshness and shelf life of the food; 3) easy to use and handle: the user can directly put the food wrapped with the hydrogel film into water for cleaning, and the discarded hydrogel film can be directly discarded in the natural environment without special treatment, and it can be naturally degraded; 4) due to its good sealing performance, it also helps to retain the original aroma and taste of the food, reducing flavor loss.

[0039] In an optional embodiment, as shown in Figure 3 the connecting structure includes:

[0040] Three-way valve 131, one input end (i.e. first input end) of the three-way valve is in communication with the first liquid storage device, and the other input end (i.e. second input end) is in communication with the second liquid storage device, the three-way valve is used to select the first input end as the input to cover the water gel film for preservation after the target object is put in, or select the second input end as the input to clean the water gel film when the target object needs to be taken out;

[0041] Water pump 132, the input end of the water pump is in communication with the output end of the three-way valve, and is used to drive the liquid to flow, the water pump is optional, and can not be used, at this time, the liquid storage chamber can be arranged above the entire communication structure, so that the liquid can automatically flow out under the action of gravity without the water pump;

[0042] Multi-way valve 133 and multiple spray heads 129, the input end of the multi-way valve is in communication with the output end of the water pump, and each output end of the multi-way valve is in communication with a spray head, the multi-way valve is used to spray the water gel or the cleaning liquid by using the selected spray head.

[0043] In another optional embodiment, referring to Figures 2 to 4 , the preservation chamber of the preservation assembly comprises: a preservation chamber drawer 124, which is divided into multiple areas (such as 4, 6, etc.) for storing different types of objects; a preservation chamber cover plate 121 installed above the preservation chamber drawer; a first drawer guide rail 126 (also referred to as a drawer left guide rail) and a second drawer guide rail 123 (also referred to as a drawer right guide rail), which are installed on both sides of the preservation chamber drawer and are used as sliding mechanisms of the preservation chamber.

[0044] The above-mentioned preservation assembly can further comprise:

[0045] A second liquid storage device 112 in communication with the preservation chamber through a communication structure, the second liquid storage device is used to store cleaning liquid (which can be clean water or other types of cleaning liquid). The communication structure can be selectively in communication with the first liquid storage device and the second liquid storage device, when in communication with the second liquid storage device, the cleaning liquid in the second liquid storage device can be introduced into the preservation chamber, the spray head sprays the water gel film covering the outer surface of the target object, and the primary cleaning is completed;

[0046] An ultrasonic generator 128 installed at the bottom of the preservation chamber, which is used to clean the target object again by using the cleaning liquid accumulated at the bottom of the preservation chamber during or after the spraying process of the spray head, and the secondary cleaning is completed;

[0047] A water collecting glass 125 and an extension rod 127, the water collecting glass is installed below the preservation chamber drawer 124, a plurality of ultrasonic generators are installed on the water collecting glass, and the extension rod is installed below the water collecting glass, the extension rod is used to push the water collecting glass to move along the axial direction of the extension rod (i.e. move up and down in the vertical direction);

[0048] The control panel 122 (which can be a fresh-keeping compartment button or a fresh-keeping compartment touch screen) is used to control the fresh-keeping assembly.

[0049] The plurality of spray heads of the present application includes a plurality of first spray heads and second spray heads, the plurality of first spray heads are installed inside the fresh-keeping compartment cover plate and face the fresh-keeping compartment drawer, in order to ensure the uniformity of spraying, there is at least one first spray head above each area of the fresh-keeping compartment drawer, the second spray heads are installed on the side of the first drawer guide rail facing the fresh-keeping compartment drawer, so as to flush and clean the bottom of the fresh-keeping compartment drawer.

[0050] The bottom of the fresh-keeping compartment drawer is provided with openings adapted to the ultrasonic generators, and there is at least one opening in each area, and the number of openings is the same as the number of ultrasonic generators; when it is necessary to remove the water condensation film covering the outer surface of the target object, the bottom telescopic rod pushes the water collecting glass to move upward (i.e. vertically upward) along the axial direction of the telescopic rod, the ultrasonic generator enters the fresh-keeping compartment drawer through the opening in the bottom of the fresh-keeping compartment drawer, thereby forming a seal of the opening in the bottom of the fresh-keeping compartment drawer; after the spray head and the ultrasonic generator complete the two cleaning operations, when it is necessary to drain the liquid in the fresh-keeping compartment, the telescopic rod pushes the water collecting glass to move downward along the axial direction of the telescopic rod, the liquid flows out from the opening in the bottom of the fresh-keeping compartment drawer, and then air drying is performed, thereby prompting the user to take out the target object.

[0051] The present application provides a fruit and vegetable fresh-keeping assembly and a refrigerator based on temperature-sensitive materials (such as temperature-sensitive water condensation film), which sprays heated temperature-sensitive water condensation film onto the surface of fruits and vegetables in the refrigerator fresh-keeping compartment, effectively controls the evaporation of water and the penetration of oxygen on the surface of fruits and vegetables by using the phase change characteristics of temperature-sensitive water condensation film at a specific temperature, thereby prolonging the shelf life of fruits and vegetables. It can solve the problem of short fruit and vegetable preservation time and prolong the shelf life; in other fruit and vegetable preservation schemes, the operation steps are complex and the user experience is poor, while the present scheme does not require any operation by the user, only needs to give a control instruction (whether to preserve or take out) ; in addition, the fruit and vegetable preservation method of the present scheme has low cost and is environmentally friendly and safe.

[0052] The present application provides a method for prolonging the shelf life of fruits and vegetables, which is helpful to retain the original aroma and taste and reduce flavor loss; at the same time, the present scheme is simple to operate and easy to use, and the preservation material is environmentally friendly and easy to handle, such as Figure 5 The method can include the following steps:

[0053] In step S502, the liquid temperature-sensitive material in the first liquid storage device is sprayed onto the outer surface of the target object, the temperature in the first liquid storage device is not lower than the first temperature threshold, the first temperature threshold is the lowest temperature allowed for the liquid temperature-sensitive material to exist in a liquid state, and the target object is an object that needs to be preserved.

[0054] In step S504, the temperature-sensitive material is cooled in the preservation chamber to form a preservation film covering the outer surface of the target object, and the temperature in the preservation chamber is not higher than a second temperature threshold, which is the highest temperature allowed for the temperature-sensitive material to change into the preservation film, and the second temperature threshold is lower than the first temperature threshold.

[0055] The technical solution of the present application is as follows: the liquid temperature-sensitive material in the first liquid storage device is sprayed onto the outer surface of the target object, the temperature in the first liquid storage device is not lower than a first temperature threshold, which is the lowest temperature allowed for the temperature-sensitive material to exist in liquid state, and the target object is an object that needs to be preserved; the temperature-sensitive material is cooled in the preservation chamber to form a preservation film covering the outer surface of the target object, and the temperature in the preservation chamber is not higher than a second temperature threshold, which is the highest temperature allowed for the temperature-sensitive material to change into the preservation film, and the second temperature threshold is lower than the first temperature threshold. By spraying the liquid temperature-sensitive material onto the outer surface of the target object and cooling it to form a preservation film, the respiration and water loss of the object can be greatly reduced, and the object can be kept fresh for a long time, thereby solving the technical problem of poor preservation effect of the related art.

[0056] In an optional embodiment, the temperature-sensitive material is a hydrogel, and the preservation film is a hydrogel film. Spraying the liquid temperature-sensitive material in the first liquid storage device onto the outer surface of the target object includes: selecting the first input end of the three-way valve and the output end corresponding to the first nozzle (i.e., the nozzle above the target object) in the multi-way valve to access the first liquid storage device storing the hydrogel, determining a target area in the multiple areas of the preservation chamber, which is a user-specified area, i.e., an area that needs to be preserved using the hydrogel film; calling the first nozzle above the target area to spray the liquid hydrogel onto the outer surface of the target object in the target area, thereby cooling the hydrogel using the low temperature of the refrigeration chamber itself to form a hydrogel film that isolates air, thereby achieving the above preservation.

[0057] In another optional embodiment, after the temperature-sensitive material is cooled in the preservation chamber to form a preservation film covering the outer surface of the target object, when cleaning is needed, the second input end of the three-way valve and the output end corresponding to the first nozzle (i.e., the nozzle above the target object) in the multi-way valve are selected to access the second liquid storage device storing the cleaning liquid, and the cleaning liquid in the second liquid storage device is sprayed onto the outer surface of the target object using the first nozzle to remove the hydrogel film covering the outer surface of the target object; then the ultrasonic generator installed at the bottom of the preservation chamber is controlled to clean the target object again, and then the output end corresponding to the second nozzle (i.e., the nozzle beside the target object) in the multi-way valve is selected to clean the bottom plate.

[0058] As an optional implementation, the technical solution of the present application is further described in detail below in conjunction with the specific embodiments:

[0059] like Figure 1 As shown, the refrigerator's refrigerator compartment contains a liquid storage chamber and a fresh-keeping chamber. The liquid storage chamber contains a hydrogel film reservoir (i.e., a first reservoir) and a drinking water storage tank (i.e., a second reservoir). The thermosensitive hydrogel film stored in the hydrogel film reservoir has the following properties: 1) It is made of biodegradable materials that easily decompose in the natural environment, reducing environmental pollution; 2) It is temperature-sensitive. Above 10°C, the thermosensitive hydrogel film is liquid; between 0°C and 10°C, it is in a gel-like, or membrane-like, state. The drinking water storage tank can store tap water.

[0060] like Figure 2 As shown, the heat exchanger is normally attached to the inside of the refrigerator casing, with insulation layer filling the space between the inside of the casing and each compartment. The heat exchanger is bent where it passes through the liquid storage chamber and attached to the outside of the inner wall of the liquid storage chamber. Heat from the heat exchanger heats the liquid storage chamber, maintaining the temperature of the temperature-sensitive hydrogel membrane and the drinking water above 30°C. When the liquid storage chamber sealing cover 113 is closed, the liquid storage chamber is properly sealed to prevent heat leakage. When the liquid storage chamber sealing cover is opened, the liquid storage tank can be removed and replenished.

[0061] like Figure 4 As shown, the fresh-keeping compartment drawer is divided into four areas, allowing for storage of fruits and vegetables with different needs. The fresh-keeping compartment drawer slides on left and right rails, with the left rail fixed to the outer wall of the liquid storage chamber and the right rail fixed to the right side of the refrigerator body. The fresh-keeping compartment cover cooperates with the left and right rails and the refrigerator body to seal the upper space of the drawer. Four nozzles are installed inside the fresh-keeping compartment cover, corresponding to the center areas above the four areas of the fresh-keeping compartment drawer. A control device is also installed inside the fresh-keeping compartment cover, connected to the bottom of the fresh-keeping compartment cover touch screen. The touch screen performs explicit operations, including temperature adjustment, area selection, preservation, and cleaning functions. Telescopic rods are fixed at both ends of the water collection glass, the other end of which is fixed to the refrigerator body. An ultrasonic generator is also fixed to the water collection glass, and its position corresponds to the hole at the bottom of the fresh-keeping compartment drawer.

[0062] like Figure 3 As shown, valve 1 of the three-way valve controls the piping for the temperature-sensitive hydrogel membrane, while valve 2 controls the piping for drinking water. Valves 3 through 6 of the six-way valve (also known as a multi-way valve) control the piping for the four nozzles inside the fresh-keeping compartment cover. Valve 7 controls the nozzles located below the left guide rail of the fresh-keeping compartment drawer and above the water collection glass. The three-way valve, water pump, and six-way valve can be pre-buried within the cabinet's insulation layer.

[0063] When using the above solution for preservation:

[0064] 1) User stores items:

[0065] The user opens the fresh-keeping compartment drawer, stores the fruits and vegetables in different areas as needed, selects the corresponding areas (multiple selection is allowed) on the fresh-keeping compartment touch screen, and selects the fresh-keeping function;

[0066] 2) When it is detected that the fresh-keeping compartment drawer is closed, the fresh-keeping program is started:

[0067] The valve ① and the fresh-keeping compartment touch screen select one or more of the valves ③-⑥ corresponding to the selected area, and the valves are opened for 5 seconds. The mist-shaped heated temperature-sensitive water condensate is sprayed from the corresponding spray head and adheres to the surface of the fruits and vegetables. Since the temperature in the refrigeration compartment is generally 2-8℃, the mist-shaped temperature-sensitive water condensate will form a thin film on the surface of the fruits and vegetables, which can effectively control the evaporation of water and the penetration of oxygen on the surface of the fruits and vegetables, thereby prolonging the shelf life of the fruits and vegetables.

[0068] 3) The user takes out the items:

[0069] When the user needs to take out the fruits and vegetables in the fresh-keeping compartment drawer, the corresponding areas (multiple selection is allowed) on the fresh-keeping compartment touch screen are selected, and the cleaning function is selected. When it is detected that the fresh-keeping compartment is in the closed state, the cleaning program is started:

[0070] The telescopic rod on the water collecting glass is extended, the water collecting glass is raised, the ultrasonic generator enters the hole position at the bottom of the fresh-keeping compartment drawer, and plays a sealing role. At the same time, the valve ② and one or more of the valves ③-⑥ corresponding to the selected area on the fresh-keeping compartment touch screen are opened for 20 seconds, and the corresponding spray head switches to the water column-shaped heated drinking water (about 30℃) mode. The water condensate is washed away when it is heated to become liquid. After 20 seconds, a certain amount of water is collected in the corresponding area. At this time, the ultrasonic generator is started for 20 seconds to clean the fruits and vegetables in the fresh-keeping compartment. After cleaning, the telescopic rod on the water collecting glass is shortened, the water collecting glass is lowered, the ultrasonic generator leaves the hole position at the bottom of the fresh-keeping compartment drawer, and the cleaned water is discharged. At this time, the valve ⑦ is opened to clean the water collecting glass for 5 seconds, and the sewage enters the drainage area of the refrigeration compartment.

[0071] 4) Prompt the user to take out:

[0072] After the cleaning program is started for 45 seconds, the refrigerator emits a prompt sound, and the user can take out the fruits and vegetables in the corresponding area.

[0073] The technical scheme provided by the present application can prolong the freshness and shelf life of fruits and vegetables, help to retain the original aroma and taste of food, and reduce flavor loss. At the same time, the operation is simple and easy to use, the fresh-keeping material is environmentally friendly and easy to handle.

[0074] It should be noted that for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0075] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus the necessary general hardware platform, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0076] According to another aspect of the embodiment of the present application, Figure 6 As shown, a fresh-keeping device is also provided, comprising:

[0077] The spraying unit 61 is used to spray the liquid temperature-sensitive material in the first liquid storage device onto the outer surface of the target item. The temperature in the first liquid storage device is not lower than the first temperature threshold. The first temperature threshold is the lowest temperature allowed for the temperature-sensitive material to exist in liquid form. The target item is an item that needs to be kept fresh.

[0078] Optionally, a target area among the multiple areas of the fresh-keeping room may be determined first, wherein the target area is an area specified by the user; and a nozzle above the target area is called to spray the liquid hydrogel onto the outer surface of the target item in the target area.

[0079] The fresh-keeping unit 63 is used to cool the temperature-sensitive material in the fresh-keeping chamber to form a fresh-keeping film covering the outer surface of the target item. The temperature in the fresh-keeping chamber is not higher than the second temperature threshold. The second temperature threshold is the maximum temperature allowed for the temperature-sensitive material to be converted into the fresh-keeping film. The second temperature threshold is lower than the first temperature threshold.

[0080] The technical scheme of the application is adopted to spray the liquid temperature-sensitive material in the first liquid storage device to the outer surface of the target object, the temperature in the first liquid storage device is not lower than a first temperature threshold, the first temperature threshold is the lowest temperature allowed for the temperature-sensitive material to exist in liquid state, and the target object is an object that needs to be preserved; the temperature-sensitive material is cooled in the preservation chamber to form a preservation film covering the outer surface of the target object, the temperature in the preservation chamber is not higher than a second temperature threshold, the second temperature threshold is the highest temperature allowed for the temperature-sensitive material to change into the preservation film, and the second temperature threshold is lower than the first temperature threshold. The scheme can greatly reduce the respiration and water loss of the object and maintain the object in a fresh state for a long time by spraying the liquid temperature-sensitive material to the outer surface of the target object and forming the preservation film after cooling, thereby solving the technical problem of poor preservation effect of the object in the related art.

[0081] Optionally, the device can further include a cleaning unit configured to spray cleaning liquid in the second liquid storage device to the outer surface of the target object to remove the water condensate film covering the outer surface of the target object after the temperature-sensitive material is cooled in the preservation chamber to form the preservation film covering the outer surface of the target object, and control the ultrasonic generator installed at the bottom of the preservation chamber to clean the target object again.

[0082] It should be noted that the above modules and the corresponding steps achieve the same examples and application scenarios, but are not limited to the contents disclosed in the above embodiments. It should be noted that the above modules as part of the device can run in the hardware environment as shown in Figure 1 The modules can be implemented by software or hardware.

[0083] According to another aspect of the embodiments of the application, the application provides an electronic device as shown in Figure 7 The electronic device includes a memory 701, a processor 703, a communication interface 705, and a communication bus 707. The memory 701 stores a computer program that can run on the processor 703. The memory 701 and the processor 703 communicate through the communication interface 705 and the communication bus 707. The processor 703 executes the computer program to implement the steps of the above method.

[0084] The memory and the processor in the above electronic device communicate through the communication bus and the communication interface. The communication bus can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The communication bus can be divided into an address bus, a data bus, and a control bus, etc.

[0085] The memory can include a random access memory (RAM) and can also include a non-volatile memory such as at least one disk memory. Optionally, the memory can also be at least one storage device located remotely from the aforementioned processor.

[0086] The aforementioned processor can be a general-purpose processor including a central processing unit (CPU), a network processor (NP), etc., and can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, discrete hardware component.

[0087] According to another aspect of the embodiments of the present application, a computer program product or computer program is also provided, which includes computer instructions stored in a computer readable storage medium. A processor of a computer device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions to enable the computer device to perform the steps of any of the above-described embodiments.

[0088] Optionally, in the embodiments of the present application, the computer readable medium is configured to store program codes for the processor to perform the following steps:

[0089] Spraying the liquid temperature-sensitive material in the first liquid storage device to the outer surface of the target object, wherein the temperature in the first liquid storage device is not lower than a first temperature threshold, the first temperature threshold being the lowest temperature allowed for the temperature-sensitive material to exist in a liquid state, and the target object being an object that needs to be preserved; and cooling the temperature-sensitive material in a preservation chamber to form a preservation film covering the outer surface of the target object, wherein the temperature in the preservation chamber is not higher than a second temperature threshold, the second temperature threshold being the highest temperature allowed for the temperature-sensitive material to change into the preservation film, and the second temperature threshold being lower than the first temperature threshold.

[0090] Optionally, specific examples in the embodiments of the present application can refer to the examples described in the above-described embodiments, which will not be repeated here.

[0091] The embodiments of the present application can refer to the above-mentioned embodiments for specific implementation, and have corresponding technical effects.

[0092] It can be understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described in the present application, or a combination thereof.

[0093] For software implementation, the techniques described herein can be implemented with a unit that performs the functions described herein. The software code can be stored in a memory and executed by a processor. The memory can be implemented in the processor or outside the processor.

[0094] Those of ordinary skill in the art can be aware that, in combination with the embodiments disclosed in the specification, units and algorithm steps of the examples described in combination with the embodiments disclosed in the specification can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present application.

[0095] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0096] In the embodiments provided by the present application, it should be understood that the disclosed device and method can be implemented in other ways. For example, the above-described device embodiments are only schematic. The division of the modules is only a logical function division. There can be another division manner in actual implementation. For example, a plurality of modules or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or in other forms.

[0097] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e. may be located in one place, or may be distributed on multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0098] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit.

[0099] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application essentially or the parts that contribute to the prior art or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk, and various program codes that can be stored. It should be noted that in this paper, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed, or include elements inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0100] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A fresh-keeping component, characterized in that: include: a first liquid storage device for storing a temperature-sensitive material, wherein the temperature in the first liquid storage device is not lower than a first temperature threshold, wherein the first temperature threshold is the lowest temperature allowed for the temperature-sensitive material to exist in a liquid state; A fresh-keeping chamber and a connecting structure, wherein the fresh-keeping chamber is connected to the first liquid storage device through the connecting structure, and the fresh-keeping chamber is used to cool the temperature-sensitive material flowing into the connecting structure, thereby forming a fresh-keeping film covering the outer surface of the target item. The temperature in the fresh-keeping chamber is not higher than a second temperature threshold, wherein the second temperature threshold is the maximum temperature allowed for the temperature-sensitive material to be converted into a fresh-keeping film, and the second temperature threshold is lower than the first temperature threshold. The target item is an item that needs to be kept fresh.

2. The fresh-keeping component according to claim 1, characterized in that: The temperature-sensitive material is a hydrogel, the fresh-keeping film is a hydrogel film, and the fresh-keeping component further comprises: a second liquid storage device, connected to the fresh-keeping chamber through the communication structure, and used for storing cleaning liquid; The connecting structure is used to introduce the cleaning liquid in the second liquid storage device into the fresh-keeping chamber, thereby cleaning the hydrogel film covering the outer surface of the target article.

3. The fresh-keeping component according to claim 2, characterized in that: The fresh-keeping component also includes: The ultrasonic generator is installed at the bottom of the fresh-keeping chamber and is used to clean the target items again using the cleaning liquid at the bottom of the fresh-keeping chamber.

4. The fresh-keeping assembly according to claim 2 or 3, characterized in that: The communication structure includes: a three-way valve, wherein a first input end of the three-way valve is connected to the first liquid storage device, and a second input end of the three-way valve is connected to the second liquid storage device, and the three-way valve is used to select the first input end as input after the target object is placed, or to select the second input end as input when the target object needs to be removed; a water pump, the input end of the water pump being connected to the output end of the three-way valve, for driving the flow of liquid; A multi-way valve and multiple nozzles, the input end of the multi-way valve is connected to the output end of the water pump, each output end of the multi-way valve is connected to a nozzle, and the multi-way valve is used to spray the hydrogel or cleaning liquid using the selected nozzle.

5. The fresh-keeping component according to claim 4, characterized in that: The fresh-keeping room comprises: A fresh-keeping compartment drawer, wherein the fresh-keeping compartment drawer is divided into multiple areas, and the multiple areas are used to store different types of items; The fresh-keeping room cover is installed above the fresh-keeping room drawer. A plurality of first nozzles facing the fresh-keeping room drawer are installed inside the fresh-keeping room cover. There is at least one first nozzle above each area of ​​the fresh-keeping room drawer, and the plurality of nozzles include the plurality of first nozzles.

6. The fresh-keeping component according to claim 5, characterized in that: The fresh-keeping room also includes: A water collecting glass and a telescopic rod, wherein the water collecting glass is installed below the fresh-keeping compartment drawer, a plurality of ultrasonic generators are installed on the water collecting glass, and the telescopic rod is installed below the water collecting glass, and the telescopic rod is used to push the water collecting glass to move along the axial direction of the telescopic rod; In which, an opening adapted to the ultrasonic generator is provided at the bottom of the fresh-keeping compartment drawer, and each area of ​​the fresh-keeping compartment drawer is provided with at least one opening, and the number of openings at the bottom of the fresh-keeping compartment drawer is the same as the number of the ultrasonic generators; when it is necessary to remove the hydrogel film covering the outer surface of the target item, the telescopic rod pushes the water collecting glass to move upward along the axial direction of the telescopic rod, and the ultrasonic generator passes through the opening at the bottom of the fresh-keeping compartment drawer and enters the fresh-keeping compartment drawer, thereby forming a seal for the bottom opening of the fresh-keeping compartment drawer; when it is necessary to discharge the liquid in the fresh-keeping compartment, the telescopic rod pushes the water collecting glass to move downward along the axial direction of the telescopic rod, and the liquid flows out from the opening at the bottom of the fresh-keeping compartment drawer.

7. The fresh-keeping assembly according to claim 5, characterized in that: The fresh-keeping room also includes: A control panel, used to control the fresh-keeping component; A first drawer guide rail and a second drawer guide rail, wherein the first drawer guide rail and the second drawer guide rail are installed on both sides of the fresh-keeping compartment drawer and are used as a sliding mechanism of the fresh-keeping compartment; Wherein, a second nozzle is installed on the side of the first drawer guide rail facing the fresh-keeping compartment drawer, and the second nozzle is used for flushing and cleaning the bottom of the fresh-keeping compartment drawer. The multiple nozzles include the second nozzle.

8. A refrigerator, characterized in that: The fresh-keeping component comprises the fresh-keeping component according to any one of claims 1 to 7.

9. A preservation method, characterized in that: The method comprises: Spraying the liquid temperature-sensitive material in the first liquid storage device onto the outer surface of the target item, wherein the temperature in the first liquid storage device is not lower than a first temperature threshold, which is the lowest temperature allowed for the temperature-sensitive material to exist in liquid form, and the target item is an item that needs to be kept fresh; The temperature-sensitive material is cooled in the fresh-keeping chamber to form a fresh-keeping film covering the outer surface of the target item, wherein the temperature in the fresh-keeping chamber is not higher than a second temperature threshold, the second temperature threshold is the maximum temperature allowed for the temperature-sensitive material to be converted into the fresh-keeping film, and the second temperature threshold is lower than the first temperature threshold.

10. The method according to claim 9, characterized in that The temperature-sensitive material is a hydrogel, and the liquid temperature-sensitive material in the first liquid storage device is sprayed onto the outer surface of the target object, comprising: determining a target area among the multiple areas of the fresh food compartment, wherein the target area is an area specified by a user; The nozzle above the target area is called to spray the liquid hydrogel onto the outer surface of the target object in the target area.

11. The method according to claim 9, characterized in that The preservative film is a hydrogel film. After the temperature-sensitive material is cooled in the preservative chamber to form the preservative film covering the outer surface of the target article, the method further includes: spraying the cleaning liquid in the second liquid storage device onto the outer surface of the target object, thereby removing the hydrogel film covering the outer surface of the target object; The ultrasonic generator installed at the bottom of the fresh-keeping chamber is controlled to clean the target item again.

12. A fresh-keeping device, characterized in that: The device comprises: a spraying unit, configured to spray the liquid temperature-sensitive material in the first liquid storage device onto the outer surface of a target item, wherein the temperature in the first liquid storage device is not lower than a first temperature threshold, the first temperature threshold being the lowest temperature allowed for the temperature-sensitive material to exist in liquid form, and the target item is an item that needs to be kept fresh; A fresh-keeping unit is used to cool the temperature-sensitive material in the fresh-keeping chamber to form a fresh-keeping film covering the outer surface of the target item, wherein the temperature in the fresh-keeping chamber is not higher than a second temperature threshold, the second temperature threshold is the maximum temperature allowed for the temperature-sensitive material to be converted into the fresh-keeping film, and the second temperature threshold is lower than the first temperature threshold.

13. A computer-readable medium having a non-volatile program code executable by a processor, characterized in that The program code enables the processor to execute the preservation method according to any one of claims 9 to 11.

Images