Refrigerator freshness maintaining device, refrigerator freshness maintaining method, health management method, and refrigerator

Abstract

This invention provides a refrigerator preservation device, a refrigerator preservation method, a health management method, and a refrigerator. The refrigerator preservation device includes multiple preservation compartments, one of which includes a low-humidity storage box with a condensation collection module. Another preservation compartment includes a humidifying storage box, an atomizing module, and an air outlet module. The condensation collection module reduces the humidity inside the storage box, the atomizing module increases the humidity, and the air outlet module stabilizes the humidity inside the storage box. This invention achieves full-range adaptive humidity control through independent humidity control of multiple compartments, differentiated sterilization and deodorization strategies, and multiple preservation modes such as low oxygen / vacuum. It can create a customized preservation environment for different food characteristics, solving the technical pain points of traditional refrigerators' crude humidity control and poor preservation effect.

Description

Technical Field

[0001] This invention belongs to the field of food preservation technology, and more specifically, relates to a refrigerator food preservation device, a refrigerator food preservation method, a health management method, and a refrigerator. Background Technology

[0002] As the core equipment for food storage in modern households, the refrigerator's fundamental purpose is to extend the shelf life and preserve the nutrients and taste of food by creating a low-temperature environment that inhibits microbial activity and the metabolism of the food itself. With consumers' increasing demands for quality of life and healthy eating, the role of the refrigerator has evolved from a simple "low-temperature storage box" to a "proactive management center for household food." Against this backdrop, preservation performance, especially the ability to precisely preserve the characteristics of different foods, has become a key indicator for measuring the technological advancement and practicality of refrigerators.

[0003] Chinese patent application (publication number CN115127296A) discloses a refrigerator preservation device and method that precisely regulates the concentration of chlorine dioxide gas by detecting its concentration and controlling the release of the reaction liquid. The refrigerator preservation control device includes a liquid storage tank, a first material tank, a second material tank, a detector, and a controller. The liquid storage tank is filled with water and located at the top of a quantitative drainage tube; the first material tank contains a first material and is located at the bottom of the tube, placed inside the second material tank. The detector monitors the chlorine dioxide concentration, and the controller controls the release time of water in the liquid storage tank accordingly. Chinese patent application (publication number CN116222140A) discloses a refrigerator preservation scheme that achieves humidification and filtration by atomizing water and guiding it to a filter cotton for evaporation via a gentle breeze. It includes a water pump, a water ion module, and a cold evaporation device connected in sequence. The water pump delivers external water to the water ion module for atomization, and the resulting wet mist is sprayed out by the cold evaporation device and blown towards the filter cotton at the outlet by a gentle breeze in its air inlet duct. Chinese patent application (publication number CN104567239A) discloses an intelligent humidifying sprayer with sensing and control functions, which humidifies the interior of a refrigerator by atomizing water vapor to preserve freshness. It includes a water storage component, a control panel component, and a mounting base component. The water storage component contains a vapor generation chamber, a fogging device, and a linked main control circuit board; the control panel is equipped with a breathing light; and the mounting base has a removable rechargeable battery.

[0004] Among the many environmental parameters affecting preservation, humidity control is crucial and extremely challenging. However, different types of food have drastically different humidity requirements for storage: for example, leafy green vegetables and berries require high humidity (approximately 90%-95% RH) to prevent wilting due to moisture evaporation; while tea, dried goods, and medicinal herbs need to be stored in low humidity (below approximately 50% RH) to prevent moisture absorption and spoilage. However, traditional and current mainstream refrigerator technologies have significant limitations in humidity control: the methods are crude and cannot achieve precise zoned control; most refrigerators use a uniform air circulation duct in the refrigerator compartment, and the indoor humidity is passively determined by the evaporator's frosting / defrosting process, making it impossible to independently set and maintain humidity for different storage areas. Although products equipped with individual "high humidity zones" or "dry and wet storage" drawers have appeared on the market, they typically rely on physical partitions and simple moisturizing / permeable films, resulting in a narrow humidity adjustment range, low precision, and the humidity of each compartment affecting each other, making it impossible to achieve independent and differentiated humidity control for multiple compartments.

[0005] Therefore, the market urgently needs a refrigerator solution that can provide multiple optimal humidity environments for different foods at the same time, and can dynamically, quickly and stably maintain the set humidity, while also being compact and energy-efficient. Summary of the Invention

[0006] The purpose of this invention is to provide a refrigerator preservation device, a refrigerator preservation method, a health management method, and a refrigerator, so as to solve the technical problem that existing technologies cannot achieve differentiated humidity control.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a refrigerator preservation device, including multiple preservation compartments;

[0008] One of the preservation compartments includes a low-humidity storage box. The sidewall of the low-humidity storage box includes a sidewall body, a biomimetic condensation water collection inner wall for collecting water vapor, and a first rapid cooling aluminum sheet for heat exchange between the inside and outside of the low-humidity storage box. The biomimetic condensation water collection inner wall and the first rapid cooling aluminum sheet are respectively disposed on the inner and outer sides of the sidewall body. The bottom wall of the low-humidity storage box is provided with a bottom water collection channel, and a water absorption structure is provided in the bottom water collection channel. The biomimetic condensation water collection inner wall includes a water conveying channel and multiple condensation water collection channels connected to the water conveying channel. The bottom of the water conveying channel is connected to the bottom water collection channel. The low-humidity storage box has a condensation air outlet channel.

[0009] One of the preservation compartments includes a humidification storage box, an atomizing module for increasing humidity, and an air outlet module disposed at the air outlet of the humidification storage box. The air outlet module includes an air inlet block, a porous membrane, and an inner turbulence block stacked sequentially along the air outlet direction. The air inlet block is provided with multiple air inlet holes. The porous membrane allows airflow to pass through while blocking water vapor from passing through. The inner turbulence block has a curved airflow channel.

[0010] Optionally, the inner and outer sides of the sidewall body are provided with mounting grooves, and the inner and outer mounting grooves of the sidewall body are respectively provided with a second quench aluminum sheet and a first quench aluminum sheet. The biomimetic condensate collection inner wall is fixed to the inner side of the sidewall body, and there is a gap between the biomimetic condensate collection inner wall and the second quench aluminum sheet.

[0011] Optionally, the dimensions of the condensate collection channel gradually increase from its top to its bottom, and the bottom of the condensate collection channel is connected to the water conveying channel. The water conveying channel is vertically arranged, with some of the condensate collection channels distributed vertically on one side of the water conveying channel and another portion distributed vertically on the other side of the water conveying channel. The surface of the condensate collection channel has an amphiphilic cellulose ester coating to allow the surface of the condensate collection channel to coexist with hydrophilic and hydrophobic properties, and the surface of the water conveying channel has a hydrophobic coating.

[0012] Optionally, the preservation compartment further includes a dehumidification module, which includes a dehumidification wheel for dehumidifying the internal space of the low-humidity storage box, a motor for driving the dehumidification wheel to rotate, a heating structure for heating the dehumidification wheel, and an air extraction module for extracting the water vapor generated by heating.

[0013] Optionally, the internal turbulence block is provided with a plurality of S-shaped airflow channels in the air outlet direction. The plurality of airflow channels include a first channel and a second channel arranged alternately in sequence. Adjacent first channels and second channels are symmetrically arranged, and the outlets of adjacent first channels and second channels are arranged opposite to each other.

[0014] Optionally, the atomizing module includes an ultrasonic atomizing structure and an electrostatic atomizing structure; the humidifying storage box includes a medium-humidity storage box and a high-humidity storage box, the ultrasonic atomizing structure provides mist droplets to the medium-humidity storage box and the high-humidity storage box, and the electrostatic atomizing structure provides mist droplets to the high-humidity storage box.

[0015] Optionally, the electrostatic atomization structure includes a high-voltage electrostatic generator, an inductively charged ring electrically connected to the high-voltage electrostatic generator, an atomizer substrate, a nozzle air inlet channel, a nozzle atomization channel, and a peristaltic pump for pumping droplets into the nozzle atomization channel.

[0016] Optionally, the atomizing module further includes an atomizing chamber with a first atomizing outlet, an air collecting channel, and an air collector for allowing droplets to enter the humidifying storage box through the first atomizing outlet. The ultrasonic atomizing structure and the electrostatic atomizing structure are each provided with the atomizing chamber. An ion generator capable of generating negative ions is provided in the air collecting channel. The air collector can create negative pressure in the air collecting channel to attract surrounding air and spray it forward.

[0017] Optionally, the refrigerator preservation device further includes an atomizing deodorization module, which includes an air circulation processing chamber, an air intake fan for drawing gas from the preservation compartment into the air circulation processing chamber, and a deodorizing adsorption box disposed in the air circulation processing chamber.

[0018] Optionally, the number of the odor-removing adsorption boxes is at least three, and three of the odor-removing adsorption boxes arranged sequentially along the gas flow direction are used to adsorb odors, perform antibacterial and humidity regulation, and emit fragrance in sequence.

[0019] Optionally, the preservation compartment further includes an air conditioning module, which includes an air conditioning vane, an adjusting rod, a sliding rod, and a lead screw assembly disposed at the air inlet of the preservation compartment. The linear output end of the lead screw assembly is fixedly connected to one end of the sliding rod, the other end of the sliding rod is rotatably connected to one end of the adjusting rod, and the other end of the adjusting rod is rotatably connected to the air conditioning vane.

[0020] Optionally, the refrigerator preservation device further includes an oxygen extraction module and a nitrogen filling module. A pressure sensor is installed inside the preservation compartment, and the pressure sensor is electrically connected to both the oxygen extraction module and the nitrogen filling module.

[0021] Optionally, the refrigerator preservation device further includes a deodorization module, which includes a first adsorption module for adsorbing odor molecules, a plasma decomposition module for decomposing odor molecules, and a safety adsorption module, wherein the safety adsorption module has an ozone decomposition catalyst.

[0022] Optionally, the plurality of preservation compartments include a general preservation compartment, a low-humidity preservation compartment, a medium-high humidity preservation compartment, a low-oxygen preservation compartment, a vacuum preservation compartment, an odor control compartment, and a temperature-controlled mother and baby compartment. The general preservation compartment uses an atomization deodorization module for atomization deodorization. The low-humidity preservation compartment includes a low-humidity storage box. The medium-high humidity preservation compartment includes a humidification storage box, an atomization module, and an air outlet module. The low-oxygen preservation compartment includes an oxygen extraction module and a nitrogen filling module. The vacuum preservation compartment includes an oxygen extraction module. The odor control compartment includes a deodorization module.

[0023] The present invention also provides a refrigerator preservation method, applied to the above-mentioned refrigerator preservation device, characterized in that the low-humidity storage box further includes a dehumidification module, the dehumidification module including a dehumidification wheel for dehumidifying the internal space of the low-humidity storage box, a motor for driving the dehumidification wheel to rotate, a heating structure for heating the dehumidification wheel, and an air extraction module for extracting the water vapor generated by heating, including the following steps:

[0024] Check whether new food has been placed in the low-humidity storage box;

[0025] When new ingredients are added, the cooling system is activated and the condenser air outlet is opened. After the first predetermined cooling time, the cooling system is deactivated and the condenser air outlet is closed.

[0026] When no new food is added, the humidity inside the low-humidity storage box is monitored. If the humidity inside the low-humidity storage box is greater than or equal to 50% RH, the dehumidification wheel is activated, and the working time of the dehumidification wheel is accumulated. When the humidity inside the low-humidity storage box is less than 50% RH, the dehumidification wheel stops working. When the accumulated time equals... T At time 1, the heating structure is activated, and after the heating structure has been running for a predetermined time, the heating structure stops working.

[0027] Optionally, the refrigerator preservation device further includes a sterilization module, which has an enhanced sterilization mode, a daily sterilization mode, and a deep cleaning mode. The refrigerator preservation method further includes the following steps:

[0028] Check whether new food has been placed in the low-humidity storage box;

[0029] When new ingredients are added, the sterilization module runs in enhanced sterilization mode for a second predetermined period of time. T After step 2, switch to daily sterilization mode, where, T 2= LR / k '· I , LR It is the target reduction value. I It is the intensity of UVC irradiation. k ' is the inactivation constant of microorganisms;

[0030] The cumulative operating time of the sterilization module is equal to t 2临界 When the sterilization module is activated, its deep cleaning mode is turned on, and the cumulative running time of the sterilization module is reset to zero.

[0031] Optionally, the atomizing module includes an ultrasonic atomizing structure and an electrostatic atomizing structure; the humidifying storage box includes a medium-humidity storage box and a high-humidity storage box, the ultrasonic atomizing structure provides mist droplets to the medium-humidity storage box and the high-humidity storage box, the electrostatic atomizing structure provides mist droplets to the high-humidity storage box, and the refrigerator preservation method further includes the following steps:

[0032] Check whether new food has been placed in the high-humidity storage box;

[0033] When new ingredients are added, the air intake duct opens and runs for the third pre-set time. T After step 3, the electrostatic atomization structure is activated and runs for the fourth predetermined duration. T Stop after 4;

[0034] When no new ingredients are added, the humidity inside the high-humidity storage box is detected. If the humidity inside the high-humidity storage box is lower than 85%RH, the electrostatic atomization structure operates until the humidity inside the high-humidity storage box equals 95%RH.

[0035] Optionally, T 4. Satisfy:

[0036]

[0037] θ It's about coverage. T 4 represents the atomization time. θ max It's about coverage. k It is the coverage rate constant. , η It is the deposition efficiency. A It is the area of ​​the bottom of the storage box. Q It is the atomization rate. β It is a coefficient that converts droplet volume into coverage area.

[0038] The present invention also provides a health management method applied to the above-mentioned refrigerator preservation device, characterized by comprising the following steps:

[0039] Acquire images of the storage box and preprocess them;

[0040] Identify the type and condition of ingredients;

[0041] Calculate the storage time of food ingredients;

[0042] Analyze changes in the state of ingredients to obtain information on ingredient consumption;

[0043] By linking food consumption information with nutritional data, the system calculates and displays the consumed nutrients.

[0044] The present invention also provides a refrigerator, including the above-described refrigerator preservation device.

[0045] The beneficial effects of the refrigerator preservation device, refrigerator preservation method, health management method, and refrigerator provided by this invention are as follows: Compared with the prior art, the refrigerator preservation device of this invention includes multiple preservation compartments, one of which includes a low-humidity storage box. The inner wall of the low-humidity storage box has a biomimetic condensation and water collection inner wall, the outer wall has a first rapid cooling aluminum sheet, and the bottom wall is provided with a bottom water collection channel. Under the action of air cooling, the side wall of the low-humidity storage box is rapidly cooled by the first rapid cooling aluminum sheet. After the water vapor is pre-cooled, it condenses into water droplets on the biomimetic condensation and water collection inner wall, moves along the condensation and water collection channel to the water delivery channel, and then moves to the bottom water collection channel, where it is absorbed by the water absorption structure, thereby achieving the purpose of reducing humidity. One of the compartments includes a humidifying storage box, an atomizing module, and an air outlet module. The air inlet block of the air outlet module can reduce the impact area of ​​the airflow, the porous membrane can allow airflow to pass through but block the mist inside the storage box from escaping, and the inner turbulence block adopts an S-shaped air duct design to reduce humidity loss by disturbing the incoming airflow, thereby maintaining the humidity inside the storage box. This invention achieves full-range adaptive control of humidity from low humidity (≤50%RH) to high humidity (85%-95%RH) through multi-compartment independent humidity precision control, differentiated sterilization and deodorization strategies, and multiple preservation modes such as low oxygen / vacuum. It can create a customized preservation environment for different food characteristics. At the same time, relying on active control technologies such as condensation water collection, rotary dehumidification, electrostatic and ultrasonic dual atomization, it can quickly respond to environmental disturbances such as door opening, avoid food from experiencing dry and wet, temperature cycles, effectively slow down food metabolism and microbial growth, significantly extend the food preservation period, and greatly improve the retention rate of food nutrients, taste and freshness. It solves the technical pain points of traditional refrigerators, such as crude humidity control and poor preservation effect. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a front view of a refrigerator provided in an embodiment of the present invention;

[0048] Figure 2 A three-dimensional structural diagram of a low-humidity preservation chamber provided in an embodiment of the present invention;

[0049] Figure 3 Rear view of the low-humidity preservation compartment provided in an embodiment of the present invention;

[0050] Figure 4A cross-sectional view of the low-humidity preservation chamber provided in an embodiment of the present invention;

[0051] Figure 5 for Figure 4 A magnified view of a section at point P in the middle;

[0052] Figure 6 A perspective structural diagram of a low-humidity storage box provided in an embodiment of the present invention;

[0053] Figure 7 A cross-sectional view of a low-humidity storage box provided in an embodiment of the present invention;

[0054] Figure 8 This is a schematic diagram of the structure of the biomimetic condensate collection inner wall provided in an embodiment of the present invention;

[0055] Figure 9 This is a structural diagram of the dehumidification module provided in an embodiment of the present invention;

[0056] Figure 10 This is a structural diagram of the medium-high humidity preservation chamber provided in an embodiment of the present invention;

[0057] Figure 11 A perspective structural diagram of a medium-humidity storage box and a high-humidity storage box provided in an embodiment of the present invention;

[0058] Figure 12 This is an exploded structural diagram of the air outlet module provided in an embodiment of the present invention;

[0059] Figure 13 A cross-sectional view of the internal turbulence block provided in an embodiment of the present invention;

[0060] Figure 14 This is a schematic diagram of the structure of the air conditioning module provided in an embodiment of the present invention;

[0061] Figure 15 for Figure 4 A magnified view of a portion of point Q;

[0062] Figure 16 This is a three-dimensional structural diagram of the atomizing module provided in an embodiment of the present invention;

[0063] Figure 17 An installation view of the atomizing module provided in an embodiment of the present invention;

[0064] Figure 18 This is a structural diagram of the electrostatic atomization structure provided in an embodiment of the present invention;

[0065] Figure 19 A three-dimensional structural diagram of the atomizing deodorizing module provided in an embodiment of the present invention;

[0066] Figure 20 This is a cross-sectional view of the atomizing deodorization module provided in an embodiment of the present invention;

[0067] Figure 21 Cross-sectional views of the low-oxygen preservation chamber and vacuum preservation chamber provided in the embodiments of the present invention;

[0068] Figure 22 An exploded view of the odor control chamber provided in an embodiment of the present invention;

[0069] Figure 23 This is a structural diagram of the temperature-controlled mother and baby cabin provided in an embodiment of the present invention;

[0070] Figure 24 A method for preserving food in a general-purpose fresh-keeping compartment provided in this embodiment of the invention;

[0071] Figure 25 The preservation method of the low-humidity preservation chamber provided in the embodiments of the present invention;

[0072] Figure 26 The preservation method of the medium-humidity storage box provided in the embodiments of the present invention;

[0073] Figure 27 A method for preserving food in a high-humidity storage box provided in an embodiment of the present invention;

[0074] Figure 28 The preservation methods of the low-oxygen preservation chamber and vacuum preservation chamber provided in the embodiments of the present invention;

[0075] Figure 29 The preservation method of the odor control chamber provided in the embodiments of the present invention;

[0076] Figure 30 This is a flowchart illustrating the health management method provided in an embodiment of the present invention.

[0077] The following are the labeling elements in the figure:

[0078] 10-Refrigerator body;

[0079] 20-General preservation compartment; 21-Atomizing deodorizing module; 211-Second atomizing outlet; 212-Air circulation treatment chamber; 213-Air intake; 214-First air outlet; 22-Deodorizing adsorption box;

[0080] 30-Low humidity preservation chamber; 31-Low humidity storage box; 311-Bionic condensate collection inner wall; 3111-Water delivery channel; 3112-Condensate collection channel; 312-Bottom water collection channel; 313-First rapid cooling aluminum sheet; 32-Dehumidification module; 3211-Exhaust channel; 3212-Heating structure; 322-Exhaust module; 323-Dehumidification rotor; 324-Motor; 325-Motor bracket; 326-Bearing seat; 34-First rear air outlet; 35-Side upper air outlet; 36-Condensate exhaust channel;

[0081] 40 - Medium-high humidity preservation compartment; 41 - Medium humidity storage box; 411 - Magnetic module; 412 - Side air outlet; 42 - High humidity storage box; 421 - Air outlet magnetic module; 422 - Second rear air outlet; 423 - First exhaust outlet; 424 - Electrostatic atomization outlet; 425 - Ultrasonic atomization outlet; 43 - Atomization module; 432 - Magnetic patch; 433 - First atomization outlet; 434 - Electrostatic atomization structure; 4341 - Inductively charged ring; 4342 - Atomizer substrate; 4343 - Nozzle atomization channel; 4344 - Nozzle air inlet channel; 4346 - Peristaltic pump ; 4347-High voltage electrostatic generator; 435-Ultrasonic atomization structure; 437-Air collector; 438-Air collection channel; 44-Upper fixed frame; 441-Sealing plate; 45-Air regulating module; 451-Air regulating plate; 452-Adjusting rod; 453-Fixed frame; 454-Slide rod; 455-Nut seat; 456-Ball screw; 46-Exhaust module; 47-Slide rail module; 48-First platinum deodorizing module; 49-Air outlet module; 491-Internal turbulence block; 4911-Airflow channel; 492-Porous membrane; 493-Air inlet block; 4931-Air inlet hole;

[0082] 50 - Low-oxygen preservation chamber; 51 - Second air outlet; 52 - Second exhaust vent; 53 - Oxygen extraction and nitrogen filling port;

[0083] 60 - Vacuum preservation chamber; 61 - Third air outlet; 62 - Third exhaust vent; 63 - Oxygen extraction port;

[0084] 70 - Odor Control Chamber; 71 - Odor Removal Module; 711 - First Adsorption Module; 712 - Plasma Decomposition Module; 713 - Safe Adsorption Module;

[0085] 80-Temperature-controlled mother and baby cabin; 81-Interactive interface; 82-Pull-out door screen; 83-Fourth air outlet; 84-Fourth exhaust vent; 85-Spectrum sterilization module; 86-Second platinum deodorization module;

[0086] 90 - Information Recognition Module. Detailed Implementation

[0087] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0088] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0089] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0090] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0091] The refrigerator preservation device provided in the embodiments of the present invention will now be described.

[0092] Please refer to the following: Figures 1 to 8 The refrigerator's preservation device includes multiple preservation compartments, and the functions of each compartment may be partially the same or completely different.

[0093] One of the preservation compartments includes a low-humidity storage box 31. The side wall of the low-humidity storage box 31 includes a side wall body, a biomimetic condensation water collection inner wall 311 for collecting water vapor, and a first rapid cooling aluminum sheet 313 for realizing heat exchange between the inside and outside of the low-humidity storage box 31. The biomimetic condensation water collection inner wall 311 and the first rapid cooling aluminum sheet 313 are respectively disposed on the inner and outer sides of the side wall body. The bottom wall of the low-humidity storage box 31 is provided with a bottom water collection channel 312, and a water absorption structure is provided in the bottom water collection channel 312. The biomimetic condensation water collection inner wall 311 includes a water conveying channel 3111 and multiple condensation water collection channels 3112 connected to the water conveying channel 3111. The bottom of the water conveying channel 3111 is connected to the bottom water collection channel 312. The low-humidity storage box 31 has a condensation air outlet channel 36.

[0094] One of the preservation compartments includes a humidification storage box, an atomizing module 43 for increasing humidity, and an air outlet module 49 located at the air outlet of the humidification storage box. The air outlet module 49 includes an air inlet block 493, a porous membrane 492, and an inner turbulence block 491 stacked sequentially along the air outlet direction. The air inlet block 493 is provided with multiple air inlet holes 4931. The porous membrane 492 allows airflow to pass through and can block water vapor from passing through. The inner turbulence block 491 has a curved airflow channel 4911.

[0095] The preservation compartment with the low-humidity storage box 31 can be called the low-humidity preservation chamber 30. The low-humidity preservation chamber 30 is suitable for storing dried goods, nuts, medicines, etc. The low-humidity storage box 31 has multiple side walls and a bottom wall. The outer side of the side wall body of the low-humidity storage box 31 refers to the outer surface of the side wall of the low-humidity storage box 31, and the inner side of the side wall body of the low-humidity storage box 31 refers to the inner surface of the side wall of the low-humidity storage box 31. The first rapid cooling aluminum sheet 313 is part of the outer side wall of the low-humidity storage box 31. When the low-humidity storage box 31 is cooled by air, the first rapid cooling aluminum sheet 313 can cool rapidly (the cooling rate is higher than that of air) and transfer the cold energy to the inner side wall of the low-humidity storage box 31, so that the biomimetic condensation water collection inner wall 311 condenses and collects water from the air inside the low-humidity storage box 31. Specifically, under air cooling, the first rapid cooling aluminum sheet 313 rapidly cools the biomimetic condensate collection inner wall 311, causing it to cool down faster than the air temperature inside the low-humidity storage box 31. Water vapor condenses into droplets on the cooled inner wall 311 and slides down to the bottom water collection channel 312 under gravity. The bottom water collection channel 312 is lined with a water-absorbing structure to absorb the collected moisture. The condensate exhaust channel 36 is used to expel gas from the low-humidity storage box 31 during air cooling. The biomimetic condensation collection inner wall 311 includes a water conveying channel 3111 and multiple condensation collection channels 3112 connected to the water conveying channel 3111. When water droplets condense, some droplets condense in the condensation collection channels 3112, flow through the condensation collection channels 3112 to the water conveying channel 3111, and eventually converge in the bottom collection channel 312; other droplets condense in the water conveying channel 3111, flow along the water conveying channel 3111, and eventually converge in the bottom collection channel 312. The humidity of the low-humidity storage box 31 is relatively low, generally below 50% RH.

[0096] The humidified storage compartment can be called a medium-high humidity storage compartment 40. The atomizing module 43 atomizes water, thereby increasing the humidity inside the humidified storage compartment. An air outlet module 49 is provided at the air outlet of the humidified storage compartment, allowing air to pass through. The air outlet module 49 includes an air inlet block 493, a porous membrane 492, and an inner baffle block 491. When airflow exits from the air outlet module 49, the air inlet holes 4931 on the air inlet block 493 allow airflow to pass through, but other parts of the air inlet block 493 can block the airflow to reduce its impact area. The inner baffle block 491 is a curved air duct that reduces humidity loss by turbulently entering the airflow. Thus, using this air outlet module 49 maintains the humidity inside the humidified storage compartment, preventing the mist droplets from being carried away during air cooling, and thus maintaining the humidity inside the humidified storage compartment. The humidity inside the medium-high humidity storage compartment 40 is relatively high, reaching 80% to 95% RH.

[0097] The refrigerator preservation device in the above embodiment includes multiple preservation compartments, one of which includes a low-humidity storage box 31. The inner wall of the low-humidity storage box 31 has a biomimetic condensation and water collection inner wall 311, the outer wall has a first rapid cooling aluminum sheet 313, and the bottom wall is provided with a bottom water collection channel 312. Under the action of air cooling, the side wall of the low-humidity storage box 31 is rapidly cooled by the first rapid cooling aluminum sheet 313. After the water vapor is pre-cooled, it condenses into water droplets on the biomimetic condensation and water collection inner wall 311, moves along the condensation and water collection channel 3112 to the water delivery channel 3111, and then moves to the bottom water collection channel 312, where it is absorbed by the water absorption structure to achieve the purpose of reducing humidity. One of the compartments includes a humidifying storage box, an atomizing module 43, and an air outlet module 49. The air inlet block 493 of the air outlet module 49 reduces the impact area of ​​the airflow, the porous membrane 492 allows airflow to pass through but blocks the leakage of mist from inside the storage box, and the inner turbulence block 491 adopts an S-shaped air duct design to reduce humidity loss by disturbing the incoming airflow, thereby maintaining stable humidity inside the storage box. The refrigerator preservation device of the present invention can provide a suitable humidity environment for various foods and can dynamically, quickly, and stably maintain the set humidity.

[0098] In some embodiments of the present invention, a first rapid cooling aluminum sheet 313 is fixed on the outer side of the side wall body of the low humidity storage box 31, and a biomimetic condensation water collection inner wall 311 is provided on the inner side, the biomimetic condensation water collection inner wall 311 having a groove structure.

[0099] In some embodiments of the present invention, the sidewall of the low-humidity storage box 31 is the first rapid cooling aluminum sheet 313, and the biomimetic condensate collection inner wall 311 has a groove structure and is disposed on the side of the first rapid cooling aluminum sheet 313 facing the interior of the low-humidity storage box 31. In this embodiment, the first rapid cooling aluminum sheet 313 cools down rapidly during air cooling, and correspondingly, the biomimetic condensate collection inner wall 311 also cools down rapidly.

[0100] In some embodiments of the present invention, mounting grooves are provided on both the inner and outer sides of the sidewall body. A second rapid cooling aluminum sheet and a first rapid cooling aluminum sheet 313 are respectively provided in the mounting grooves on the inner and outer sides of the sidewall body. The biomimetic condensate collection inner wall 311 is fixed to the inner side of the sidewall body, and there is a gap between the biomimetic condensate collection inner wall 311 and the second rapid cooling aluminum sheet. In this embodiment, the biomimetic condensate collection inner wall 311 is a solid structure, not a grooved structure. The first rapid cooling aluminum sheet 313 and the second rapid cooling aluminum sheet rapidly cool down during air cooling, achieving heat exchange between the inside and outside of the low-humidity storage box 31. The temperature drop rate of the two rapid cooling aluminum sheets is faster than the temperature drop rate of the air inside the low-humidity storage box 31, thus rapidly reducing the temperature of the biomimetic condensate collection inner wall 311 and achieving a condensation effect. Moreover, the gap between the biomimetic condensation water collection inner wall 311 and the second rapid cooling aluminum sheet can increase the water collection area of ​​the biomimetic condensation water collection inner wall 311 and accelerate the condensation water collection rate of the biomimetic condensation water collection inner wall 311.

[0101] In some embodiments of the present invention, please refer to Figure 8 The size of the condensate collection channel 3112 gradually increases from its top to its bottom, and the bottom of the condensate collection channel 3112 is connected to the water conveying channel 3111. The water conveying channel 3111 is vertically arranged. Some of the condensate collection channels 3112 are distributed vertically on one side of the water conveying channel 3111, and other condensate collection channels 3112 are distributed vertically on the other side of the water conveying channel 3111. The surface of the condensate collection channel 3112 has an amphiphilic cellulose ester coating, which makes the surface of the condensate collection channel 3112 hydrophilic and hydrophobic coexist. The surface of the water conveying channel 3111 has a hydrophobic coating. The biomimetic condensation collection inner wall 311 is a vertically arranged wall. Multiple condensation collection channels 3112 can be understood as being distributed in a leaf-like shape within the water conveyance channel 3111. When water droplets condense in the condensation collection channels 3112, they flow along the condensation collection channels 3112 under gravity to the water conveyance channel 3111 and then flow towards the bottom of the water conveyance channel 3111. When an amphiphilic cellulose ester coating is applied to the surface of the condensation collection channels 3112, the surface of the condensation collection channels 3112 becomes partially hydrophilic and partially hydrophobic, making it easier for water vapor to condense into droplets. These droplets then migrate towards the water conveyance channel 3111 under Laplace pressure, thus achieving self-transportation of the droplets. The hydrophobic coating on the surface of the water conveyance channel 3111 facilitates the falling of water droplets.

[0102] In some embodiments, a hydrophobic coating is a type of coating that makes the surface of a material less susceptible to wetting by water, allows water droplets to form a high contact angle on it and make it easy to roll off. The hydrophobic coating may be polydimethylsiloxane, fluorocarbon, etc.

[0103] In some embodiments, amphiphilic cellulose esters are obtained by simultaneously introducing hydrophilic and hydrophobic groups onto the same cellulose molecular chain through precise molecular design. The hydrophilic groups can be carboxymethyl, sulfonic acid, polyethylene glycol chains, quaternary ammonium salt groups, etc., while the hydrophobic groups can be long alkyl chains (such as lauroyl, palmitoyl) or aromatic groups.

[0104] In some embodiments, the water supply channel 3111 and a plurality of condensate collection channels 3112 connected to the water supply channel 3111 constitute a condensate collection unit. The number of condensate collection units is plurality of and can be arranged sequentially along the horizontal direction.

[0105] In some embodiments, the absorbent structure can be a highly absorbent material such as absorbent cotton. The absorbent structure is located within the bottom water collection channel 312 and is replaceable. A humidity sensor can be installed inside the low-humidity storage box 31. When the humidity inside the low-humidity storage box 31 is consistently greater than 50%RH, the humidity sensor transmits a signal to the central processing unit, triggering an alarm and reminding the user to replace the absorbent structure.

[0106] In some embodiments of the present invention, please refer to Figure 2 and Figure 3 The low-humidity preservation compartment 30 is provided with a side upper air outlet 35, a condensation air outlet 36, and a first rear air outlet 34. The side upper air outlet 35 is used to cool the outer wall of the low-humidity storage box 31, while the side upper air outlet 35 and the first rear air outlet 34 are used to cool the interior of the low-humidity storage box 31.

[0107] In some embodiments of the present invention, please refer to Figure 3 , Figure 4 and Figure 9 , Figure 9 The first figure is a front view of the dehumidification module 32, the second figure is a cross-sectional view along line BB, and the third figure is a cross-sectional view along line AA. The preservation compartment (low-humidity preservation compartment 30) also includes the dehumidification module 32, which includes a dehumidification wheel 323 for dehumidifying the interior space of the low-humidity storage box 31, a motor 324 for driving the dehumidification wheel 323, a heating structure 3212 for heating the dehumidification wheel 323, and an extraction module 322 for extracting the water vapor generated by heating. The dehumidification module 32 is used for secondary dehumidification of the low-humidity storage box 31. The dehumidification wheel 323 and the low-humidity storage box 31 are in the same space, and physical moisture absorption is achieved through continuous rotation. When the dehumidification wheel 323 reaches its moisture absorption limit, it enters the area where the heating structure 3212 is located for regenerative dehumidification. The principle is to heat the dehumidifying wheel 323 by heating the induction coil arranged in the heating structure 3212, so that the water adsorbed by the dehumidifying wheel 323 evaporates; the generated water vapor is extracted and discharged through the air extraction channel 3211. After the regeneration process is completed, the air extraction channel 3211 is closed.

[0108] In some embodiments, the motor 324 drives the dehumidifying wheel 323 to rotate to achieve the functions of moisture absorption and regeneration. The motor 324 is fixed to the rear base of the low-humidity preservation chamber 30 by the motor bracket 325, and the dehumidifying wheel 323 is mounted on the bearing seat 326. The low-humidity storage box 31 is fixed to the rear wall of the low-humidity preservation chamber 30 by magnetic strips.

[0109] In some embodiments, the dehumidifying impeller 323 uses a honeycomb structure made of porous ceramic fiber paper as a carrier. The dehumidifier solution is impregnated to penetrate all micropores under capillary action. Then, through processes such as drying and curing, the dehumidifier is attached to the substrate skeleton in the form of a coating or particles.

[0110] In some embodiments of the present invention, the low-humidity preservation chamber 30 further includes a sterilization module, which mainly includes a sterilization LED array light source and an illumination light source. The sterilization LED array light source III consists of eight groups of ultraviolet LED arrays, which can emit ultraviolet light of different wavelengths to achieve a multi-level sterilization strategy. Specifically, it includes the following three working modes: daily mode, which selects ultraviolet LED light sources with a peak wavelength of 315nm–400nm, combined with the photocatalytic coating on the surface of the air outlet, the system operates continuously at low power to achieve daily air and surface purification; enhanced mode, which selects deep ultraviolet LED light sources with a peak wavelength of 260nm–280nm to quickly destroy microbial DNA and achieve efficient sterilization; and deep cleaning mode, which periodically activates the above two modes simultaneously to perform a comprehensive deep cleaning of the chamber.

[0111] In some embodiments, the sterilization module is a full-spectrum synergistic sterilization module.

[0112] In some embodiments of the present invention, please refer to Figures 10 to 13 , Figure 10 The left-middle image is a front view of the medium-high humidity preservation compartment 40. Figure 10 The right-middle figure is a sectional view along line CC, which is the main view. The medium-high humidity preservation chamber 40 includes a medium humidity storage box 41, a high humidity storage box 42, an atomizing module 43, and an air outlet module 49.

[0113] The atomizing module 43 includes an ultrasonic atomizing structure 435 and an electrostatic atomizing structure 434; the humidifying storage box includes a medium-humidity storage box 41 and a high-humidity storage box 42. The ultrasonic atomizing structure 435 provides mist droplets to the medium-humidity storage box 41 and the high-humidity storage box 42, and the electrostatic atomizing structure 434 provides mist droplets to the high-humidity storage box 42. Generally speaking, the humidity inside the medium-humidity storage box 41 is lower than that inside the high-humidity storage box 42. The medium-humidity storage box 41 is suitable for storing mushrooms, citrus fruits, eggplants, cucumbers, etc.; the high-humidity storage box 42 is used to store leafy vegetables, fresh flowers, berries, and other items that require a high-humidity environment.

[0114] In some embodiments, the medium-humidity storage box 41 and the high-humidity storage box 42 are integrally formed and can be slidably connected to the outer shell of the medium-high humidity preservation chamber 40. For example, a slide rail module 47 is provided on the medium-humidity storage box 41 and the high-humidity storage box 42, and a slide groove is provided on the outer shell of the medium-high humidity preservation chamber 40. In this way, the medium-humidity storage box 41 and the high-humidity storage box 42 can be pulled out to realize the synchronous movement out or retraction of the medium-humidity storage box 41 and the high-humidity storage box 42.

[0115] In some embodiments, the top wall of the medium-high humidity preservation chamber 40 is provided with an upper fixing frame 44, and a sealing plate 441 with a magnetic attraction module 411 is provided between the top of the humidifying storage box and the bottom of the upper fixing frame 44. When the handle of the humidifying storage box is pulled, the infrared sensor hidden in the handle is triggered, the magnetic attraction module 411 located at the upper fixing frame 44 is energized, and the sealing plate 441 is attracted upward to open the channel, so that the humidifying storage box can be pulled out; when the humidifying storage box is pushed back, the photoelectric sensor located inside the humidifying storage box is triggered, the magnetic attraction module 411 located on the humidifying storage box is energized, and the sealing plate 441 is attracted downward, thereby achieving the sealing of the humidifying storage box.

[0116] In some embodiments, the atomizing module 43 provides humidification for the medium-high humidity preservation compartment 40, and has a general power supply, a high-voltage power supply, a water inlet, and a pipe connection on its side. The high-voltage power supply converts the refrigerator's input electricity into the power required for the electrostatic atomizing structure 434, while the general power supply powers other circuits. The water inlet is connected to an external water supply channel for replenishing water to the atomizing module 43. The pipe connection is a pre-installed interface for electrical wires and pipes. The medium-humidity storage box 41 and the high-humidity storage box 42 are equipped with a first platinum deodorizing module 48, which absorbs and decomposes odors by releasing platinum ions.

[0117] In some embodiments, the medium-high humidity preservation compartment 40 further includes an exhaust module 46 and an air conditioning module 45. The air conditioning module 45 is used to achieve rapid cooling and multi-dimensional airflow disturbance in the preservation compartment, while the exhaust module 46 is used to maintain the air pressure balance inside the storage box.

[0118] In some embodiments, please refer to Figure 11 The medium-humidity storage box 41 and the high-humidity storage box 42 mainly include a magnetic suction module 411, a side air outlet 412, an air outlet magnetic suction module 421, a second rear air outlet 422, a first exhaust air outlet 423, an electrostatic atomization outlet 424, and an ultrasonic atomization outlet 425. The magnetic suction module 411 is arranged on the outside and rear top of the medium-humidity storage box 41 and the high-humidity storage box 42, with three sets of magnetic suction units driven by micro-electronic control at each location. The side air outlets 412 are located on the outside of each storage box, with two sets arranged symmetrically on the left and right; the second rear air outlets 422 are located at the rear of each storage box, with three sets arranged symmetrically; the first exhaust air outlet 423 is located at the rear of each storage box, with one set for each. The high-humidity storage box 42 has an electrostatic atomization outlet 424 and an ultrasonic atomization outlet 425 located on the outside; the medium-humidity storage box 41 area only has an ultrasonic atomization outlet 425. The air outlets of the medium humidity storage box 41 and the high humidity storage box 42 are provided with air outlet magnetic modules 421, which can be composed of magnetic patches 432, and are connected to the atomizing module 43.

[0119] In some embodiments, the above-mentioned air outlet module 49 is provided at the second rear air outlet 422 of both the medium humidity storage box 41 and the high humidity storage box 42, which can reduce the humidity loss of the medium humidity storage box 41 and the high humidity storage box 42.

[0120] In some embodiments, please refer to Figure 12 and Figure 13 The air inlet block 493 has multiple air inlet holes 4931, which are arranged in an array on the air inlet block 493. By blocking the airflow through the air inlet block 493, the disturbance and impact of the airflow can be reduced, and the possibility of moisture being carried out of the humidifier storage box can be reduced.

[0121] In some embodiments, please refer to Figure 12 and Figure 13 The porous membrane 492 can be prepared by processes such as electrospinning, allowing airflow to pass through while blocking the escape of mist from inside the storage box, thereby maximizing humidity retention. The porous membrane 492 can be made of materials such as polytetrafluoroethylene.

[0122] In some embodiments, please refer to Figure 12 and Figure 13 The internal turbulence block 491 has multiple S-shaped airflow channels 4911 arranged in the air outlet direction. These channels include alternating first and second channels, with adjacent first and second channels symmetrically arranged and their outlets facing each other. This opposing arrangement of outlets in the adjacent first and second channels causes the two airflows to collide at the outlet, further exacerbating airflow turbulence. This design not only promotes a uniform distribution of temperature and humidity in the air supply direction but also significantly reduces localized humidity fluctuations caused by concentrated airflow impact.

[0123] In some embodiments, the inner baffle block 491 is provided with a plurality of S-shaped airflow channels 4911 in the air outlet direction. The airflow channels 4911 include a plurality of parallel first channels and a plurality of parallel second channels, and at least one first channel and at least one second channel are interconnected within the inner baffle block 491. The S-shaped airflow channel 4911 design can reduce humidity loss by disturbing the incoming airflow. There are multiple parallel first channels and multiple parallel second channels, and the first and second channels are interconnected.

[0124] By setting up intersecting first and second channels, the airflow can be forced to change direction continuously and drastically, thereby inducing secondary flow and vortices inside the channels, effectively disrupting the laminar boundary layer, and achieving full mixing of the airflow.

[0125] In some embodiments of the present invention, please refer to Figure 14 and Figure 15The preservation compartment also includes an air conditioning module 45. The air conditioning module 45 includes an air conditioning vane 451, an adjusting rod 452, a sliding rod 454, and a lead screw assembly located at the air inlet of the preservation compartment. The linear output end of the lead screw assembly is fixedly connected to one end of the sliding rod 454, and the other end of the sliding rod 454 is rotatably connected to one end of the adjusting rod 452. The other end of the adjusting rod 452 is rotatably connected to the air conditioning vane 451. The air conditioning module 45 can be located at the air inlet of the medium-high humidity preservation compartment 40, or at the air inlet of other preservation compartments. This explanation uses the example of the air conditioning module 45 being located at the air inlet of the medium-high humidity preservation compartment 40.

[0126] The screw assembly includes a rotatable ball screw 456 and a nut seat 455 threaded to the ball screw 456. An air regulating vane 451 is hinged to the medium-humidity storage box 41 and / or the high-humidity storage box 42. An adjusting rod 452 is hinged to both the air regulating vane 451 and the sliding rod 454, with the sliding rod 454 fixedly connected to the nut seat 455. When the screw assembly operates, the nut seat 455 drives the sliding rod 454 to move along the fixed frame 453, thereby changing the angle of the air regulating vane 451. Temperature regulation in the medium-high humidity preservation compartment 40 is primarily achieved through air cooling. After cooling is initiated, the air regulating module 45 is simultaneously activated, adjusting the airflow direction in real time to promote heat exchange within the two storage boxes. When the temperature reaches the set value, the air regulating module 45 is deactivated, and subsequent airflow exchange is maintained only through the air outlet module 49 until cooling is complete.

[0127] In some embodiments of the present invention, please refer to Figures 16 to 18 , Figure 18 The left image is a top view of the electrostatic atomization structure 434, and the right image is a cross-sectional view along line DD in the top view. The electrostatic atomization structure 434 includes a high-voltage electrostatic generator 4347, an inductively charged ring 4341 electrically connected to the high-voltage electrostatic generator 4347, an atomizer substrate 4342, a nozzle air inlet channel 4344, a nozzle atomization channel 4343, and a peristaltic pump 4346 for pumping droplets into the nozzle atomization channel 4343.

[0128] The atomizing module 43 also includes an atomizing chamber with a first atomizing outlet 433, an air collecting channel 438, and an air collector 437 for allowing droplets to enter the humidifying storage box through the first atomizing outlet 433. The ultrasonic atomizing structure 435 and the electrostatic atomizing structure 434 are each provided with an atomizing chamber. An ion generator capable of generating negative ions is provided in the air collecting channel 438. The air collector 437 can create negative pressure in the air collecting channel 438 to attract surrounding air and spray it forward.

[0129] During operation, the peristaltic pump 4346 pumps droplets into the nozzle atomization channel 4343. Under the influence of a high-voltage electrostatic field, the droplets undergo Rayleigh instability breakup, resulting in jet atomization. The atomized droplets carry a charge on their surface and then, with the assistance of the air collectors 437, enter the medium-humidity storage box 41 and the high-humidity storage box 42. The number of air collectors 437 is the same as the number of atomization chambers. An ion generator is installed in the air collection channel 438, which generates negative ions, which enter the storage box along with the airflow and atomized droplets. The air collectors 437 utilize the Bernoulli effect to create negative pressure in the annular channel, attracting surrounding air to be sprayed forward, forming a continuous and stable airflow. The charged droplets are efficiently deposited in the target area under the influence of the airflow, and the incoming ionized airflow further purifies the air in the storage box.

[0130] Optionally, both the ultrasonic atomization structure 435 of the high humidity storage box 42 and the ultrasonic atomization structure 435 of the medium humidity storage box 41 employ two identical sets of micro ultrasonic atomization units to achieve droplet atomization.

[0131] In some embodiments of the present invention, please refer to Figure 19 and Figure 20 The refrigerator's preservation device also includes a misting deodorization module 21. The misting deodorization module 21 includes an air circulation processing chamber 212, an intake fan for drawing gas from the preservation compartment into the air circulation processing chamber 212, and a deodorizing adsorption box 22 disposed within the air circulation processing chamber 212. The misting deodorization module 21 may include an ultrasonic atomizer or multiple sets of miniature ultrasonic atomizing units to achieve atomized humidification.

[0132] The atomizing deodorizing module 21 has a second atomizing outlet 211, an air intake 213, and a first air outlet 214 connected to the air circulation processing chamber 212. The atomized droplets are discharged from the second atomizing outlet 211 to the corresponding preservation compartment, primarily responsible for increasing the humidity of the preservation compartment. The air circulation processing chamber 212 is responsible for internally circulating the air within the general preservation compartment 20, achieved through two built-in suction fans. During air circulation, the air inside the preservation compartment is drawn in and first passes through the air intake 213 on the mesh surface, then through the embedded deodorizing adsorption box 22 to achieve deodorization. The purified airflow is then discharged into the preservation compartment through the first air outlet 214 of the atomizing deodorizing module 21. It should be noted that the atomizing deodorizing module 21 can perform atomizing deodorization on the general preservation compartment 20, as well as on other preservation compartments.

[0133] In some embodiments, the number of odor-absorbing adsorption boxes 22 is at least three, with three of them arranged sequentially along the gas flow direction for adsorbing odors, antibacterial and humidity-regulating functions, and fragrance dispersing, respectively. Along the gas flow direction, the first odor-absorbing adsorption box 22 provides broad-spectrum and high-efficiency adsorption, responsible for adsorbing the vast majority of odor molecules; the second odor-absorbing adsorption box 22 provides selective adsorption / functional enhancement, targeting specific odors that were not completely removed in the first stage, or adding antibacterial, humidity-regulating, or other functions. The third odor-absorbing adsorption box 22 optimizes sensory perception and ensures safety, releasing a pleasant natural aroma and ensuring that any trace odors that might escape are treated last. The first odor-absorbing adsorption box 22 may contain materials such as high-iodine-value activated carbon / hydrophobic modified zeolite; the second odor-absorbing adsorption box 22 may contain materials such as nano-silicon-loaded natural herbal extracts; and the third odor-absorbing adsorption box 22 may contain materials such as microencapsulated natural plant essential oils.

[0134] In some embodiments, the mesh surface design of the air intake 213 and the first air outlet 214 helps to increase airflow speed and promote surrounding air turbulence.

[0135] In some embodiments, an odor sensor is provided in the general-purpose preservation compartment 20. The odor sensor may be a metal oxide semiconductor sensor, used to detect the total concentration of odors.

[0136] In some embodiments, the atomizing deodorizing module 21 can be detachably connected to the refrigerator body 10 or storage box, etc., to facilitate the periodic replacement of the atomizing deodorizing module 21.

[0137] In some embodiments of the present invention, please refer to Figure 21 The refrigerator's preservation system also includes an oxygen extraction module and a nitrogen filling module. A pressure sensor is installed inside the preservation compartment, and both the sensor and the nitrogen filling module are electrically connected. The oxygen extraction module removes oxygen from the preservation compartment, keeping the oxygen content low and slowing down the oxidation of food. The nitrogen filling module fills the preservation compartment with nitrogen, ensuring the pressure inside remains within the normal range. A preservation compartment with an oxygen extraction module can be called a vacuum preservation compartment 60, while a compartment with both oxygen extraction and nitrogen filling modules can be called a low-oxygen preservation compartment 50.

[0138] In some embodiments of the present invention, please refer to Figure 22The refrigerator's preservation device also includes a deodorization module 71, which comprises a first adsorption module 711 for adsorbing odor molecules, a plasma decomposition module 712 for decomposing odor molecules, and a safety adsorption module 713. The safety adsorption module 713 has an ozone decomposition catalyst. The deodorization module 71 can be used to suppress the diffusion of odors from strongly scented foods. Odor-laden airflow in the preservation compartment first undergoes physical adsorption through the first adsorption module 711, which can be embedded with activated carbon or herbal adsorption boxes. It then enters the plasma decomposition module 712, which is equipped with a plasma generation chamber to efficiently decompose residual trace odor molecules. Finally, the airflow passes through the safety adsorption module 713, which can be embedded with an activated carbon adsorption box carrying an ozone decomposition catalyst, ensuring complete gas purification. After these three stages of treatment, clean and odorless gas is output. The plasma generation chamber can be equipped with an exhaust device; when the internal circulation is activated, the exhaust device is engaged to achieve the internal circulation deodorization function.

[0139] It should be noted that the oxygen extraction module, nitrogen filling module, and deodorization module 71 can be applied to any of the preservation compartments.

[0140] In some embodiments of the present invention, please refer to Figure 1 The multiple preservation compartments include a general-purpose preservation compartment 20, a low-humidity preservation compartment 30, a medium-high humidity preservation compartment 40, a low-oxygen preservation compartment 50, a vacuum preservation compartment 60, an odor control compartment 70, and a temperature-controlled mother-and-baby compartment 80. The general-purpose preservation compartment 20 uses an atomizing deodorization module 21 for deodorization. The low-humidity preservation compartment 30 includes a low-humidity storage box 31. The medium-high humidity preservation compartment 40 includes a humidifying storage box, an atomizing module 43, and an air outlet module 49. The low-oxygen preservation compartment 50 includes an oxygen extraction module and a nitrogen filling module. The vacuum preservation compartment 60 includes an oxygen extraction module, and the odor control compartment 70 includes a deodorization module 71. The general-purpose preservation compartment 20 is used to store foods with mild odors that require short-term preservation, such as beverages, sauces, and dairy products. All other specialized compartments use a pull-out drawer design to ensure independent storage space. In daily use: the low-humidity preservation compartment 30 is suitable for storing dried goods, nuts, medicines, etc.; the medium-humidity storage box 41 is suitable for storing mushrooms, citrus fruits, eggplants, cucumbers, etc.; the high-humidity storage box 42 is used to store leafy vegetables, fresh flowers, berries, and other items that require a high-humidity environment; the temperature-controlled baby food compartment 80 is specifically designed for storing baby formula, complementary foods, probiotics, and other baby foods; the odor control compartment 70 is used to store foods with strong odors, such as durian and meat; the low-oxygen preservation compartment 50 is suitable for foods that need to be stored for a long time or that are prone to spoilage after opening; and the vacuum preservation compartment 60 is used to preserve high-value foods, such as premium seafood and top-grade meats.

[0141] In some embodiments, please refer to Figure 21The low-oxygen preservation chamber 50 is equipped with a second air outlet 51, a second exhaust outlet 52, and an oxygen extraction and nitrogen filling port 53. The vacuum preservation chamber 60 is equipped with a third air outlet 61, a third exhaust outlet 62, and an oxygen extraction port 63. The air outlet is used for air cooling, and the exhaust outlet is used to maintain pressure balance within the chamber. The oxygen extraction and nitrogen filling port 53 of the low-oxygen preservation chamber 50 is used to extract oxygen and fill with nitrogen; the oxygen extraction port 63 of the vacuum preservation chamber 60 is used to extract air from the chamber to create a vacuum environment. Both chambers are equipped with pressure sensors to monitor internal pressure. The low-oxygen preservation chamber 50 creates a low-oxygen atmosphere by extracting some oxygen and filling with nitrogen, inhibiting the respiration of food and thus slowing down the loss of nutrients; the vacuum preservation chamber 60 creates a vacuum state by removing air from the chamber, achieving vacuum preservation of food.

[0142] In some embodiments of the present invention, please refer to Figure 22 The odor control chamber 70 is mainly used to suppress the spread of odors from strongly scented foods. Its temperature control strategy is similar to that of the low-humidity preservation chamber 30. It has side-top air outlets and rear air outlets on the outside and rear of the chamber for air cooling. The odor control chamber 70 has air outlets that are connected to the odor removal module 71 via magnetic attraction.

[0143] In some embodiments of the present invention, please refer to Figure 23 , Figure 23 The top left image shows the front view of the temperature-controlled mother-and-baby compartment 80, the bottom left image shows the top view of the temperature-controlled mother-and-baby compartment 80, and the right image shows the right view of the temperature-controlled mother-and-baby compartment 80. The temperature-controlled mother-and-baby compartment 80 mainly consists of an interactive interface 81, a pull-out door screen 82, a fourth air outlet 83, a fourth exhaust vent 84, a spectral sterilization module 85, and a second platinum deodorizing module 86. The interactive interface 81 is integrated into the human-machine interface system of the refrigerator body 10, used to set parameters such as temperature, humidity, and sterilization for each compartment, and to query food storage records. The fourth air outlet 83 consists of three independent flexible and stretchable pipes responsible for air cooling; the fourth exhaust vent 84 is used to maintain air pressure balance within the compartment. The sterilization and deodorization functions of this compartment are achieved jointly by the spectral sterilization module 85 and the second platinum deodorizing module 86. The spectral sterilization module 85 is structurally and functionally identical to the spectral sterilization module 85 used in the low-humidity preservation compartment 30, both employing ultraviolet spectroscopy technology; the second platinum deodorizing module 86 is identical to the first platinum deodorizing module 48 in the medium-high humidity preservation compartment 40. The temperature-controlled mother and baby compartment 80 adopts a pull-out door design, which helps save space occupied by the main body of the refrigerator 10.

[0144] In some embodiments of the present invention, the refrigerator preservation device further includes an information identification module 90. The information identification module 90 includes an image recognition camera capable of capturing food image information and an RFID sensing unit for sensing and identifying RFID tags, and is equipped with a lighting source. The image recognition module mainly captures and identifies images of the food and compares them with food images from the previous state to obtain information about the food (including type, quantity and storage time). The RFID sensing unit is mainly used for sensing and recording food information inside each compartment. It can sense the RFID tag on the food storage bag by bringing it close to the RFID sensing unit, thereby recording the food information. This information can be edited through an interactive interface.

[0145] The present invention also provides a refrigerator preservation method, which is applied to the refrigerator preservation device in any of the above embodiments.

[0146] In some embodiments of the present invention, the refrigerator preservation method is applied to a multi-compartment adaptive dynamic preservation refrigerator equipped with a general preservation compartment 20, a low-humidity preservation compartment 30, a medium-humidity storage box 41, a high-humidity storage box 42, a temperature-controlled mother and baby compartment 80, a low-oxygen preservation compartment 50, an odor control compartment 70, and a vacuum preservation compartment 60. The refrigerator is equipped with a refrigerator interactive interface, a customer terminal interface, and a cloud management platform. The refrigerator interactive interface can be used to display operating status, alarm prompts, and other information. This refrigerator preservation method achieves dynamic adaptive preservation operation and maintenance of each compartment through information perception, information comparison, and intelligent execution.

[0147] In some embodiments of the present invention, the sensor detection information is real-time collection of environmental and food-related information by the sensing modules of each compartment of the refrigerator. Specifically, the sensor detection information includes temperature, humidity, gas, and food information. This information is transmitted to the central processing unit (CPU) for noise reduction, deduplication, and outlier removal of the raw data, providing a foundation for subsequent data analysis. Further structured analysis is performed on the valid data, specifically including comparisons of food types, odor concentrations in each compartment, humidity levels in each compartment, and real-time temperatures in each compartment. The analyzed data is then compared with preset expected thresholds (temperature threshold, humidity threshold, gas concentration threshold, etc.) on the refrigerator's interactive interface / cloud / client terminal to determine whether the current operating status of each compartment meets the preservation requirements, providing a basis for the formulation of subsequent adaptive control strategies. Based on the above comparison results, the execution command is sent to the independent actuators of each compartment. Each refrigerator control unit mobilizes the functional modules of each compartment according to the operation and maintenance strategy to achieve sterilization and deodorization of each compartment and precise control of temperature and humidity of each compartment. At the same time, the power consumption data and status data of each compartment are transmitted in real time to the refrigerator interactive interface, customer terminal interface and cloud, and the display module displays the operating status synchronously.

[0148] In some embodiments of the present invention, please refer to Figure 24 The general-purpose fresh-keeping compartment 20 includes a misting deodorization module 21, which can control odors and regulate humidity. Odor control in the general-purpose fresh-keeping compartment 20 is achieved as follows: Real-time detection of the total odor concentration inside the compartment; if the total odor concentration exceeds a set threshold (ppm), the circulation motor is activated to begin internal circulation adsorption and deodorization; if the total odor concentration does not exceed the set threshold (ppm), the circulation motor is shut off; when the maximum operating time of the internal circulation adsorption in the deodorization module exceeds a preset value, the display module issues an alarm indicating that the deodorization adsorption box 22 needs replacement. Humidity regulation in the general-purpose fresh-keeping compartment 20 is achieved as follows: Real-time detection of the humidity value inside the compartment; if the humidity is <60% RH, the ultrasonic atomization structure 435 starts atomization operation; if the humidity reaches 75% RH, the atomization module 43 stops operating; when the volume of the medium in the atomization module 43 reaches the critical alarm value, the display module issues an alarm indicating that water needs to be added.

[0149] In some embodiments of the present invention, please refer to Figure 25 In the low-humidity preservation compartment 30, the low-humidity storage box 31 further includes a dehumidification module 32. The dehumidification module 32 includes a dehumidification wheel 323 for dehumidifying the internal space of the low-humidity storage box 31, a motor 324 for driving the dehumidification wheel 323 to rotate, a heating structure 3212 for heating the dehumidification wheel 323, and an extraction module 322 for extracting the water vapor generated during heating. In the low-humidity preservation compartment 30, the refrigerator preservation method includes:

[0150] Check whether new food has been placed in the low-humidity storage box 31;

[0151] When new ingredients are added, the cooling system is activated and the condenser air outlet 36 is opened. After the first preset cooling time, the cooling system is deactivated and the condenser air outlet 36 is closed.

[0152] When no new food is added, the humidity inside the low-humidity storage box 31 is monitored. If the humidity inside the low-humidity storage box 31 is greater than or equal to 50%RH, the dehumidification wheel 323 is activated, and the working time of the dehumidification wheel 323 is accumulated. When the humidity inside the low-humidity storage box 31 is less than 50%RH, the dehumidification wheel 323 stops working. When the accumulated time equals... T At time 1, the heating structure 3212 starts, and after the heating structure 3212 has been running for a predetermined time, the heating structure 3212 stops working.

[0153] Specifically, when new food is added, the low-humidity storage box 31 is triggered to enter the condensation and dehydration process. During cooling, the condenser air outlet 36 is opened; after cooling is complete, the condenser air outlet 36 is closed. Humidity control: The humidity inside the chamber is monitored in real time. If the humidity is ≥50% RH, the dehumidification wheel 323 of the physical adsorption module starts operating; if the humidity is <50% RH, the dehumidification wheel 323 is turned off; when the dehumidification wheel 323 has been running for more than [time period missing], the dehumidification process is initiated. TAt time 1, heating structure 3212 is activated, in which... T 1. Can be set by yourself.

[0154] In some embodiments of the present invention, the refrigerator preservation device further includes a sterilization module, which can be disposed in the low-humidity preservation compartment 30. The sterilization module has an enhanced sterilization mode, a daily sterilization mode, and a deep cleaning mode. Please refer to [link to relevant documentation]. Figure 25 The refrigerator preservation method also includes the following steps:

[0155] Check if any new food has been placed in the low-humidity storage box 31;

[0156] When new ingredients are added, the sterilization module runs in enhanced sterilization mode for the second predetermined duration. T After step 2, switch to daily sterilization mode, where, T 2= LR / k '· I , LR It is the target reduction value. I It is the intensity of UVC irradiation. k ' is the inactivation constant of microorganisms;

[0157] The cumulative running time of the sterilization module is equal to t 2临界 When the sterilization module's deep cleaning mode is activated, the cumulative running time of the sterilization module is reset to zero.

[0158] Specifically, when new food is added, the sterilization module immediately activates enhanced mode, automatically switching to normal mode after a runtime of T2; the sterilization module will activate when the runtime reaches a critical value. t 临界 It then automatically switches to deep cleaning mode, and after the deep cleaning mode is completed, it returns to the normal cooling linkage logic. t 临界 Configure it according to your needs. LR =3 corresponds to a sterilization rate of 99.9%. LR =2 corresponds to a 99% sterilization rate. LR =1 corresponds to a 90% sterilization rate.

[0159] In some embodiments of the present invention, the atomizing module 43 includes an ultrasonic atomizing structure 435 and an electrostatic atomizing structure 434; the humidifying storage box includes a medium-humidity storage box 41 and a high-humidity storage box 42, the ultrasonic atomizing structure 435 provides mist droplets to the medium-humidity storage box 41 and the high-humidity storage box 42, and the electrostatic atomizing structure 434 provides mist droplets to the high-humidity storage box 42. (See also...) Figure 26The medium-humidity storage box 41 uses the following methods to control humidity and sterilize: The medium-humidity storage box 41 has a preset humidity threshold of 75%-85%RH, achieving adaptive humidity control and maximum sterilization rate. Sterilization control: During cooling, multi-dimensional air-cooling disturbance and air-adjusting channels are activated, mainly using airflow disturbance to ensure full contact between the air inside the chamber and the platinum purification module. When cooling ends, the multi-dimensional air-cooling disturbance and air-adjusting channels are closed. When new food is placed inside, the air collection channel 438 is activated to release negative ions for sterilization. The release time is... T After step 3, close the air intake duct 438. T 3. Custom-defined. Humidity control: Real-time detection of cabin humidity. If humidity < 75% RH, ultrasonic atomizing structure 435 operates; if humidity reaches 85% RH, ultrasonic atomizing structure 435 stops operating; when humidity reaches the critical alarm value, the display module issues an alarm prompt: Add water.

[0160] In some embodiments, please refer to Figure 27 The refrigerator preservation method for the high humidity storage box 42 also includes the following steps:

[0161] Check if any new food has been placed in the high-humidity storage box 42;

[0162] When new ingredients are added, the air intake duct 438 opens and runs for the third pre-set duration. T After step 3, the electrostatic atomization structure 434 is activated and runs for the fourth predetermined duration. T Stop after 4;

[0163] When no new ingredients are added, the humidity inside the high-humidity storage box 42 is detected. If the humidity inside the high-humidity storage box 42 is lower than 85%RH, the electrostatic atomization structure 434 operates until the humidity inside the high-humidity storage box 42 equals 95%RH.

[0164] The high-humidity storage box 42 has a preset humidity threshold of 85%-95%RH, achieving adaptive humidity control, maximum sterilization rate, and effective adhesion of mist droplets to the food surface. Sterilization control: During cooling, multi-dimensional air-cooling disturbance and airflow adjustment channels are activated, primarily using airflow disturbance to ensure full contact between the internal air and the platinum purification module. When cooling ends, the multi-dimensional air-cooling disturbance and airflow adjustment channels are deactivated. When new food is placed inside, the air collection channel 438 is activated, releasing negative ions for sterilization. The release duration is... T 3. Close the air collection duct 438. Humidity control: Real-time monitoring of the humidity inside the cabin. If the humidity is <85% RH, the ultrasonic atomizing structure 435 operates; if the humidity reaches 95% RH, the ultrasonic atomizing structure 435 stops operating; when the volume of the medium (e.g., water) reaches the critical alarm value, the display module issues an alarm prompt: Add water. Atomization mode switching: When new food is added, the electrostatic atomizing structure 434 operates for a certain period of time. T4. When no new ingredients are added, the ultrasonic atomization structure 435 operates until the humidity reaches 95% RH and then stops.

[0165] In some embodiments, T 4. Operations shall be performed in accordance with the following principles:

[0166]

[0167] θ It's about coverage. T 4 represents the atomization time. θ max It's about coverage. θ max It can be 1. k It is the coverage rate constant. , η It is the deposition efficiency. A It is the area of ​​the bottom of the storage box. Q It is the atomization rate. β It is a coefficient that converts droplet volume into coverage area.

[0168] In some embodiments of the present invention, please refer to Figure 28 The low-oxygen preservation chamber 50 and the vacuum preservation chamber 60 are linked and equipped with an oxygen pump, a nitrogen pump, a nitrogen enhancement module, channels 1, 2, and 3. The core function is to regulate the oxygen / nitrogen content of the low-oxygen preservation chamber 50 by oxygen extraction and nitrogen enhancement, and to control the pressure of the vacuum preservation chamber 60 by oxygen extraction. All actions are based on the chamber pressure and gas content.

[0169] The low-oxygen preservation chamber 50 employs the following control method: Upon startup, it is determined whether the chamber is shut down. Further monitoring of the oxygen content within the chamber is conducted. If the oxygen content is greater than [a certain value], [further steps are taken]. M 氧气 Then, channel 1 will be activated, and the oxygen pump will be turned on until the cabin pressure reaches the hypoxic chamber pressure threshold. P c Close channel 1, start channel 3 and the nitrogen pump to fill the chamber with nitrogen. Monitor the chamber pressure in real time during the filling process. When the pressure reaches atmospheric pressure... P At 0:00, shut down the nitrogen pump and channel 3. Control the operation of the oxygen extraction and nitrogen enhancement module by setting the oxygen content, following these principles:

[0170]

[0171] in y The oxygen content is at most 20%. P c It is the critical indoor pressure value used to determine the working status of the oxygen pump. P 0 represents atmospheric pressure.

[0172] The vacuum preservation chamber 60 employs the following control method: It determines whether the vacuum preservation chamber 60 is closed by further detecting the pressure value inside the chamber. If the pressure value is less than or equal to atmospheric pressure... P 0 and greater than the critical pressure P v Then, channel 2 is opened, and the oxygen pump is activated to reduce the internal pressure of the cabin to the critical pressure. P v This value can be set by the user. Once the critical pressure is reached, channel 2 and the oxygen pump will be shut off.

[0173] In some embodiments of the present invention, please refer to Figure 29 The odor control compartment 70 is equipped with an odor removal module 71, which achieves adaptive operation through the odor removal rate. The odor control compartment 70 employs the following control method: real-time detection of the odor concentration inside the compartment and comparison with the odor removal rate. If the odor removal rate is less than a set threshold, the odor removal module 71 only activates synchronously with the refrigerator's cooling process; if the odor removal rate is greater than or equal to the set threshold, real-time detection of the odor concentration inside the compartment is maintained, and the odor removal module 71 continuously operates in internal circulation odor removal mode until the odor concentration falls below the preset value. The odor removal rate can be calculated using the following formula, and the total odor concentration is updated when new food is added:

[0174] Odor removal rate = Total odor concentration when new ingredients are added / Current total odor concentration

[0175] In some embodiments of the present invention, the temperature-controlled maternal and infant compartment 80 is equipped with a spectral sterilization module 85 and an independent cooling air duct. The spectral sterilization module 85 adopts the same spectral sterilization strategy as the low-humidity preservation compartment 30. In order to achieve temperature control of the compartment, the compartment is equipped with an independent cooling air duct to achieve constant temperature storage of maternal and infant food.

[0176] This invention also provides a health management method; please refer to [link / reference]. Figure 30 This method, applicable to the refrigerator preservation device in any of the above embodiments, relies on the refrigerator's multi-compartment information identification module 90 and data processing module to feed back nutrient intake data and dietary recommendations to the terminal. The method includes the following steps:

[0177] Acquire images of the storage box and preprocess them;

[0178] Identify the type and condition of ingredients;

[0179] Calculate the storage time of food ingredients;

[0180] Analyze changes in the state of ingredients to obtain information on ingredient consumption;

[0181] By linking food consumption information with nutritional data, the system calculates and displays the consumed nutrients.

[0182] The following provides a detailed explanation of each process step.

[0183] Image acquisition of the storage box (image recognition): An image recognition camera is installed at the corresponding position of the refrigerator storage box. The camera takes pictures of the food in the storage box at a preset period (such as daily, which can be customized according to needs). During the shooting process, the timestamp of each frame of the image is recorded simultaneously to establish the correspondence between the image and the shooting time.

[0184] Image preprocessing: The original images captured by the camera undergo multi-dimensional preprocessing operations, including image distortion correction (eliminating geometric distortion caused by the camera lens and restoring the true shape of the food), image segmentation (separating the food area from the background area and accurately extracting the independent image features of one or more types of food), and illumination equalization (eliminating the influence of factors such as the brightness of the light inside the refrigerator and reflections on the image, ensuring the clarity of the food features), providing high-quality image data for subsequent food identification.

[0185] Identifying the type and state of ingredients: The preprocessed image is input into the trained CNN (Convolutional Neural Network) model, which is trained on a large number of food image samples and can accurately identify the type (such as cucumber, beef, tomato, etc.) and real-time state (such as fresh, semi-fresh, etc.) of each ingredient in the image.

[0186] Calculate the storage time of food ingredients: Based on the timestamp of the image capture, combined with the first appearance time of the food ingredients identified by the CNN model and the capture time of each subsequent time point, the storage time of each food ingredient in the storage compartment is automatically calculated, providing a time dimension basis for the analysis of changes in the state of food ingredients.

[0187] Analyze changes in the state of ingredients: Compare the state of the ingredients currently identified with that of the ingredients identified in the previous period to analyze the change patterns of the ingredients, including the reduction in the amount of ingredients remaining, changes in freshness, whether new ingredients have been added or whether existing ingredients have been completely consumed, etc.

[0188] Obtaining food consumption information: Based on the analysis results of changes in the state of food, accurately determine the types and actual quantities of food consumed within a certain period of time, eliminating non-human consumption factors such as natural loss during food storage, and ensuring the accuracy of food consumption information.

[0189] Linking food consumption information with nutritional data: The determined food consumption information is linked with a pre-stored nutritional database in the background. This nutritional database contains basic nutritional data of common foods (such as the content of protein, carbohydrates, fat, vitamins, minerals, etc.), and the corresponding component data is automatically retrieved according to the type of food and the quantity consumed.

[0190] Calculate and display the consumed nutrients: Based on the retrieved basic nutrient data and the actual consumption quantity, calculate the specific content of various nutrients ingested from the consumed food; at the same time, the system summarizes and calculates the nutrient content of all consumed food in a single day, and finally displays the total amount and percentage of various nutrients ingested daily on the terminal (such as refrigerator human-machine interaction screen, mobile APP, smart home central control screen, etc.), realizing a visual presentation of nutrient intake.

[0191] When using RFID sensing identification for data entry, an RFID tag should be affixed to the surface of the food. When the food is placed in the container, the information identification module 90 senses and identifies the tag. At this time, the human-machine interface displays a food information entry interface, allowing users to manually enter / select information such as the type and quantity of the food. After the food is placed in the container, the storage time is calculated. When the food is removed, the information identification module 90 senses and identifies the food again, and the human-machine interface displays another food information entry interface for modification.

[0192] This embodiment deeply empowers users to improve their dietary health and quality of life: Based on image recognition and RFID dual-sensing technology, it achieves comprehensive collection of food information. Combined with user profile generation, collaborative work of multiple types of AI models, and internet data integration, it constructs a full-process health management system from food procurement planning and dietary structure adjustment to customized recipe generation and health effect evaluation. At the same time, it provides personalized health management modes such as weight loss and body shaping, sugar and salt control, and maternal and infant health. It can identify unhealthy dietary risks such as high salt and high sugar in real time, dynamically optimize diet and procurement suggestions, and upgrade the refrigerator from a simple food preservation device to a family health management center. It helps users develop scientific eating habits, accurately matches the health needs of different groups, and comprehensively improves users' dietary health and quality of life.

[0193] Furthermore, based on the information about the food inside the refrigerator and combined with health management needs, it can intelligently generate recipe recommendations and purchasing suggestions. The specific steps are as follows:

[0194] Health management mode selection: Access the system's health management module through a terminal (refrigerator touch screen, associated mobile terminal, etc.) and select the corresponding health management mode according to your own needs. This mode may include a variety of preset modes such as fat loss mode, muscle gain mode, balanced nutrition mode, blood sugar control mode, and elderly health care mode. It also supports custom health management goals (such as daily protein intake, dietary fiber intake requirements, etc.).

[0195] Food information keyword extraction: The system extracts food information inside the refrigerator in real time, including the types of food, freshness, and storage time identified by the CNN model. The information is then converted into standardized keywords (such as "fresh chicken breast", "broccoli", "rice", etc.) as the core basis for subsequent intelligent recommendations.

[0196] AI Question Answering Model Generation: Based on extracted food information keywords and the selected health management mode, the system calls the AI ​​model training engine in the background to generate a targeted AI question answering model. This model integrates nutritional knowledge, food cooking characteristics, health management goals, and information on existing food in the refrigerator. It can respond to various questions and answers regarding food cooking methods, nutritional combinations, and consumption recommendations, while also providing algorithmic support for recipe and purchasing suggestions.

[0197] Recipe and Procurement Suggestion Generation and Display: Based on the generated AI question-answering model, the system filters and generates recipes from the backend recipe database that match existing ingredients and conform to the health management model. Recipe content includes dish name, ingredient ratios, cooking steps, and nutritional content per serving. Simultaneously, the system analyzes the gaps between existing ingredients and recommended recipes and health management goals, combining ingredient freshness and storage time to generate personalized procurement suggestions, including the types of ingredients that need to be replenished, suggested purchase quantities, and freshness selection recommendations, avoiding food waste and meeting health management needs. Finally, the system visualizes the generated recipes and procurement suggestions on the terminal, allowing direct viewing, saving, and adjustment. It also supports synchronizing procurement suggestions to online shopping platforms for one-stop purchasing.

[0198] This embodiment possesses significant social benefits and green development value: by using precise food preservation technology, it reduces food waste caused by spoilage, helps promote a green and low-carbon lifestyle, and lowers the economic cost of household food consumption and the depletion of social resources; at the same time, each compartment adopts independent functional modules and adaptive control strategies to achieve on-demand operation of functions such as cooling, humidification, and dehumidification, which significantly reduces energy consumption compared to the global control of traditional refrigerators, aligning with the industrial development trend of energy conservation and environmental protection; in addition, the structural design of pull-out drawers and magnetic detachable connections takes into account ease of use and maintenance, improves product practicality and user experience, and promotes the refrigerator industry to upgrade towards precision, intelligence, and greenness.

[0199] The present invention also provides a refrigerator, including the refrigerator preservation device of any of the above embodiments. The refrigerator provided by the present invention achieves full-range adaptive humidity control through multi-compartment independent humidity precise control, differentiated sterilization and deodorization strategies, and multiple preservation modes such as low oxygen / vacuum, and can create a customized preservation environment for different food characteristics.

[0200] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A refrigerator freshness keeping device, characterized by, Includes multiple refrigerated compartments; One of the preservation compartments includes a low-humidity storage box. The sidewall of the low-humidity storage box includes a sidewall body, a biomimetic condensation water collection inner wall for collecting water vapor, and a first rapid cooling aluminum sheet for heat exchange between the inside and outside of the low-humidity storage box. The biomimetic condensation water collection inner wall and the first rapid cooling aluminum sheet are respectively disposed on the inner and outer sides of the sidewall body. The bottom wall of the low-humidity storage box is provided with a bottom water collection channel, and a water absorption structure is provided in the bottom water collection channel. The biomimetic condensation water collection inner wall includes a water conveying channel and multiple condensation water collection channels connected to the water conveying channel. The bottom of the water conveying channel is connected to the bottom water collection channel. The low-humidity storage box has a condensation air outlet channel. One of the preservation compartments includes a humidification storage box, an atomizing module for increasing humidity, and an air outlet module disposed at the air outlet of the humidification storage box. The air outlet module includes an air inlet block, a porous membrane, and an inner turbulence block stacked sequentially along the air outlet direction. The air inlet block is provided with multiple air inlet holes. The porous membrane allows airflow to pass through and can block water vapor from passing through. The inner turbulence block has a curved airflow channel. The inner and outer sides of the sidewall body are provided with mounting grooves. The mounting grooves on the inner and outer sides of the sidewall body are respectively provided with a second quench aluminum sheet and a first quench aluminum sheet. The biomimetic condensate collection inner wall is fixed to the inner side of the sidewall body, and there is a gap between the biomimetic condensate collection inner wall and the second quench aluminum sheet.

2. The refrigerator preservation device as described in claim 1, characterized in that, The condensate collection channel gradually increases in size from its top to its bottom, and the bottom of the condensate collection channel is connected to the water conveying channel. The water conveying channel is vertically arranged, with some of the condensate collection channels distributed vertically on one side of the water conveying channel and others distributed vertically on the other side. The surface of the condensate collection channel has an amphiphilic cellulose ester coating to allow for the coexistence of hydrophilic and hydrophobic properties on the surface of the condensate collection channel. The surface of the water conveying channel has a hydrophobic coating.

3. The refrigerator preservation device as described in claim 1, characterized in that, The preservation compartment also includes a dehumidification module, which includes a dehumidification wheel for dehumidifying the interior space of the low-humidity storage box, a motor for driving the dehumidification wheel to rotate, a heating structure for heating the dehumidification wheel, and an air extraction module for extracting the water vapor generated by heating.

4. The refrigerator preservation device as described in claim 1, characterized in that, The internal turbulence block is provided with multiple S-shaped airflow channels in the air outlet direction. The multiple airflow channels include a first channel and a second channel arranged alternately in sequence. Adjacent first channels and second channels are symmetrically arranged, and the outlets of adjacent first channels and second channels are arranged opposite to each other.

5. The refrigerator preservation device as described in claim 1, characterized in that, The atomization module includes an ultrasonic atomization structure and an electrostatic atomization structure; the humidification storage box includes a medium humidity storage box and a high humidity storage box, the ultrasonic atomization structure provides mist droplets to the medium humidity storage box and the high humidity storage box, and the electrostatic atomization structure provides mist droplets to the high humidity storage box.

6. The refrigerator preservation device as described in claim 5, characterized in that, The electrostatic atomization structure includes a high-voltage electrostatic generator, an inductively charged ring electrically connected to the high-voltage electrostatic generator, an atomizer base, a nozzle air inlet channel, a nozzle atomization channel, and a peristaltic pump for pumping droplets into the nozzle atomization channel.

7. The refrigerator preservation device as described in claim 5, characterized in that, The atomizing module further includes an atomizing chamber with a first atomizing outlet, an air collecting channel, and an air collector for allowing droplets to enter the humidifying storage box through the first atomizing outlet. The ultrasonic atomizing structure and the electrostatic atomizing structure are each provided with the atomizing chamber. An ion generator capable of generating negative ions is provided in the air collecting channel. The air collector can create negative pressure in the air collecting channel, attracting surrounding air to be sprayed forward.

8. The refrigerator preservation device as described in claim 1, characterized in that, The refrigerator preservation device also includes a misting deodorization module, which includes an air circulation treatment chamber, an air intake fan for drawing gas from the preservation compartment into the air circulation treatment chamber, and a deodorization adsorption box disposed in the air circulation treatment chamber.

9. The refrigerator preservation device as described in claim 8, characterized in that, The number of the odor-removing adsorption boxes is at least three, and three of the odor-removing adsorption boxes arranged in sequence along the gas flow direction are used to adsorb odors, perform antibacterial and humidity regulation, and emit fragrance in sequence.

10. The refrigerator preservation device as described in claim 1, characterized in that, The preservation compartment also includes an air conditioning module, which includes an air conditioning vane, an adjusting rod, a sliding rod, and a lead screw assembly disposed at the air inlet of the preservation compartment. The linear output end of the lead screw assembly is fixedly connected to one end of the sliding rod, the other end of the sliding rod is rotatably connected to one end of the adjusting rod, and the other end of the adjusting rod is rotatably connected to the air conditioning vane.

11. The refrigerator preservation device as described in claim 1, characterized in that, The refrigerator preservation device also includes an oxygen extraction module and a nitrogen filling module. A pressure sensor is installed inside the preservation compartment, and the pressure sensor is electrically connected to both the oxygen extraction module and the nitrogen filling module.

12. The refrigerator preservation device as described in claim 1, characterized in that, The refrigerator preservation device also includes an odor removal module, which includes a first adsorption module for adsorbing odor molecules, a plasma decomposition module for decomposing odor molecules, and a safety adsorption module, wherein the safety adsorption module has an ozone decomposition catalyst.

13. The refrigerator preservation device as described in claim 1, characterized in that, The multiple preservation compartments include a general preservation compartment, a low-humidity preservation compartment, a medium-high humidity preservation compartment, a low-oxygen preservation compartment, a vacuum preservation compartment, an odor control compartment, and a temperature-controlled mother and baby compartment. The general preservation compartment uses an atomization deodorization module for deodorization. The low-humidity preservation compartment includes a low-humidity storage box. The medium-high humidity preservation compartment includes a humidification storage box, an atomization module, and an air outlet module. The low-oxygen preservation compartment includes an oxygen extraction module and a nitrogen filling module. The vacuum preservation compartment includes an oxygen extraction module. The odor control compartment includes a deodorization module.

14. A refrigerator preservation method, applied to the refrigerator preservation device according to any one of claims 1-13, characterized in that, The low-humidity storage box also includes a dehumidification module, which includes a dehumidification wheel for dehumidifying the internal space of the low-humidity storage box, a motor for driving the dehumidification wheel to rotate, a heating structure for heating the dehumidification wheel, and an air extraction module for extracting the water vapor generated by heating, including the following steps: Check whether new food has been placed in the low-humidity storage box; When new ingredients are added, the cooling system is activated and the condenser air outlet is opened. After the first predetermined cooling time, the cooling system is deactivated and the condenser air outlet is closed. When no new food is added, the humidity inside the low-humidity storage box is monitored. If the humidity inside the low-humidity storage box is greater than or equal to 50% RH, the dehumidification wheel is activated, and the working time of the dehumidification wheel is accumulated. When the humidity inside the low-humidity storage box is less than 50% RH, the dehumidification wheel stops working. When the accumulated time equals... T At time 1, the heating structure is activated, and after the heating structure has been running for a predetermined time, the heating structure stops working.

15. The refrigerator preservation method as described in claim 14, characterized in that, The refrigerator preservation device also includes a sterilization module, which has an enhanced sterilization mode, a daily sterilization mode, and a deep cleaning mode. The refrigerator preservation method also includes the following steps: Check whether new food has been placed in the low-humidity storage box; When new ingredients are added, the sterilization module runs in enhanced sterilization mode for a second predetermined period of time. T After step 2, switch to daily sterilization mode, where, T 2= LR / k '· I , LR It is the target reduction value. I It is the intensity of UVC irradiation. k ' is the inactivation constant of microorganisms; The cumulative operating time of the sterilization module is equal to t 2临界 When the sterilization module is activated, its deep cleaning mode is turned on, and the cumulative running time of the sterilization module is reset to zero.

16. The refrigerator preservation method as described in claim 14, characterized in that, The atomization module includes an ultrasonic atomization structure and an electrostatic atomization structure; the humidification storage box includes a medium-humidity storage box and a high-humidity storage box; the ultrasonic atomization structure provides mist droplets to the medium-humidity storage box and the high-humidity storage box; the electrostatic atomization structure provides mist droplets to the high-humidity storage box; the refrigerator preservation method further includes the following steps: Check whether new food has been placed in the high-humidity storage box; When new ingredients are added, the air intake duct opens and runs for the third pre-set time. T After step 3, the electrostatic atomization structure is activated and runs for the fourth predetermined duration. T Stop after 4; When no new ingredients are added, the humidity inside the high-humidity storage box is detected. If the humidity inside the high-humidity storage box is lower than 85%RH, the electrostatic atomization structure operates until the humidity inside the high-humidity storage box equals 95%RH.

17. The refrigerator preservation method as described in claim 16, characterized in that, T 4. Satisfy: θ It's about coverage. T 4 represents the atomization time. θ max It's about coverage. k It is the coverage rate constant. , η It is the deposition efficiency. A It is the area of ​​the bottom of the storage box. Q It is the atomization rate. β It is a coefficient that converts droplet volume into coverage area.

18. A health management method applied to the refrigerator preservation device according to any one of claims 1-13, characterized in that, Includes the following steps: Acquire images of the storage box and preprocess them; Identify the type and condition of ingredients; Calculate the storage time of food ingredients; Analyze changes in the state of ingredients to obtain information on ingredient consumption; By linking food consumption information with nutritional data, the system calculates and displays the consumed nutrients.

19. A refrigerator, characterized in that: Includes the refrigerator preservation device according to any one of claims 1-13.

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