CN112747533B - Refrigerator and control method thereof - Google Patents
Refrigerator and control method thereof Download PDFInfo
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- CN112747533B CN112747533B CN201911056777.9A CN201911056777A CN112747533B CN 112747533 B CN112747533 B CN 112747533B CN 201911056777 A CN201911056777 A CN 201911056777A CN 112747533 B CN112747533 B CN 112747533B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
- F25D2317/0411—Treating air flowing to refrigeration compartments by purification by dehumidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention provides a refrigerator and a control method thereof, wherein a storage container is arranged in the refrigerator; the upper surface of the storage container is integrated with an oxygen-removing and moisture-permeable component which is configured to consume oxygen inside the storage container through an electrolytic reaction; a photosensitive sensor is also arranged in the storage container; and the control method comprises: acquiring the intensity of an optical signal detected by a photosensitive sensor; determining the volume use level of the storage container according to the intensity of the optical signal; determining the operation mode of the oxygen-removing moisture-permeable component according to the volume use grade of the storage container; and controlling the oxygen-removing and moisture-permeable component according to the operation mode. The relation between the volume use level and the oxygen content is utilized, the oxygen content is indirectly determined by detecting the volume use level, the operation mode of the deoxygenation process can be adjusted according to the actual deoxygenation requirement under the condition of not using an oxygen concentration sensor, the electrical energy is saved while the deoxygenation effect is ensured, the hardware cost of the refrigerator is saved, and the control program is simplified.
Description
Technical Field
The present invention relates to a refrigerator, and more particularly, to a refrigerator and a control method thereof.
Background
The modified atmosphere preservation technology is a technology for prolonging the storage life of food by adjusting environmental gas. In the refrigerator field, through setting up electrolysis deoxidization subassembly, utilize its electrochemical reaction to consume inside oxygen and build low oxygen atmosphere, can improve fresh-keeping effect. The electrochemical reaction needs to consume electric energy, and the storage condition of the refrigerator in the use process is random, so that the deoxygenation requirement in the storage space is complex and changeable, and if the operation mode of the electrochemical reaction cannot be controlled according to the actual deoxygenation requirement, excessive electric energy waste can be caused.
In the prior art, an oxygen concentration sensor is used for detecting the oxygen concentration of a storage space, and then the operation mode of electrochemical reaction is determined through the oxygen concentration. However, the provision of the oxygen concentration sensor increases the hardware cost of the refrigerator, resulting in a complicated control process, and in addition, the sensor is easily out of order due to a low-temperature and humid environment.
Disclosure of Invention
An object of the present invention is to provide a refrigerator and a control method thereof that solve at least one of the above-mentioned technical problems.
A further object of the present invention is to reduce the hardware cost of the modified atmosphere preservation type refrigerator.
Particularly, according to an aspect of the present invention, there is provided a control method of a refrigerator, in which a storage device is provided in the refrigerator; the upper surface of the storage device is integrated with an oxygen-removing moisture-permeable component which is configured to consume oxygen inside the storage container through electrolytic reaction; a photosensitive sensor is also arranged in the storage device; and the control method comprises: acquiring the intensity of an optical signal detected by a photosensitive sensor; determining the volume use level of the storage container according to the intensity of the optical signal; determining the operation mode of the oxygen-removing moisture-permeable component according to the volume use grade of the storage container; and controlling the oxygen-removing and moisture-permeable component according to the operation mode.
Optionally, a trigger signal that the storage device is closed is obtained, and after a refrigeration system of the refrigerator starts to refrigerate the space where the storage container is located, the photosensitive sensor is controlled to start to detect.
Optionally, the volume usage level corresponds to a range of values of the optical signal intensity, and increases stepwise as the optical signal intensity decreases.
Optionally, the operation mode of the oxygen removal moisture permeable assembly is preset with the operation time of an initial oxygen removal stage, and the initial oxygen removal stage is a stage of starting oxygen removal for the first time by the oxygen removal moisture permeable assembly after the storage container is closed; the run time of the initial deoxygenation stage increases in stages as the volume usage level decreases.
Optionally, a periodic parameter of a periodic deoxygenation stage is preset in the operation mode of the deoxygenation moisture-permeable assembly, and the periodic deoxygenation stage is a stage of periodically starting the deoxygenation moisture-permeable assembly at intervals when the storage container is kept in a closed state after the initial deoxygenation stage of the deoxygenation moisture-permeable assembly is completed; the step of determining the operation mode of the oxygen-scavenging moisture-permeable assembly according to the volume use grade of the storage container further comprises the following steps: judging whether the volume use level of the storage container is a full-load level, wherein the full-load level is a level when the intensity of an optical signal detected by the photosensitive sensor is lower than a first preset value; if not, determining the cycle parameters of the cycle deoxygenation stage corresponding to the volume usage level.
Optionally, the cycle parameters of the periodic oxygen removal phase include run time and interval time; the oxygen scavenging moisture permeable assembly is configured to scavenge oxygen from the storage container during an operating time and is configured to cease scavenging oxygen for an interval of time; the running time is increased in steps as the volume usage level is decreased, and the interval time is decreased correspondingly as the running time is increased.
Optionally, the oxygen-scavenging moisture permeable assembly comprises: the surface, back to the storage space of the storage container, of the proton exchange membrane group is exposed outside the storage space and is configured to electrolyze water vapor to generate hydrogen ions and oxygen; the surface of the proton exchange membrane group facing the storage space of the storage container is exposed to the inside of the storage space and is configured to generate water by utilizing the reaction of hydrogen ions and oxygen; the fan is arranged on one side of the proton exchange membrane group back to the storage space and promotes to form airflow flowing through the surface of the proton exchange membrane group back to the storage space of the storage container; the step of controlling the oxygen-removing moisture-permeable component according to the operation mode comprises the following steps: and supplying electric energy required by electrolysis to the proton exchange membrane group according to the operation mode, and driving a fan to operate.
Optionally, the operating mode of the oxygen-removing moisture-permeable assembly is also preset with the fan speed and/or the electrolysis voltage of the proton exchange membrane group.
Optionally, a trigger signal is obtained that the storage container is opened, terminating control of the oxygen scavenging moisture permeable assembly.
According to another aspect of the present invention, there is also provided a refrigerator including: the upper surface of the storage container is integrated with an oxygen-removing moisture-permeable component which is configured to consume oxygen inside the storage container through electrolytic reaction; the inside of the storage container is also provided with a photosensitive sensor which is configured to detect the use volume of the storage container through an optical signal; a control device, comprising: a processor and a memory, the memory having stored therein a control program for implementing the control method according to any one of the above when the control program is executed by the processor.
According to the refrigerator and the control method thereof, the deoxidizing and moisture-permeable component and the photosensitive sensor are integrated on the storage container of the refrigerator, the volume use grade of the storage container is determined by processing the intensity of the optical signal detected by the photosensitive sensor, the deoxidizing time of the deoxidizing and moisture-permeable component is further determined, then the deoxidizing and moisture-permeable component is controlled to operate according to the deoxidizing time corresponding to the volume use grade, the operation mode of a deoxidizing process can be adjusted according to the actual deoxidizing requirement, and the electric energy is saved while the deoxidizing effect is ensured.
Further, according to the refrigerator and the control method thereof, the relation between the volume use level and the oxygen content is utilized, the oxygen content is indirectly determined by detecting the volume use level, the oxygen removing time can be determined according to the actual oxygen removing requirement under the condition that an oxygen concentration sensor is not used, the hardware cost of the refrigerator is saved, and the control program is simplified.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic block diagram of a refrigerator according to one embodiment of the present invention;
FIG. 2 is a schematic exploded view of a storage device of the refrigerator shown in FIG. 1;
FIG. 3 is an exploded view of the storage device shown in FIG. 2;
FIG. 4 is a schematic bottom view of the storage container of the storage device shown in FIG. 3;
fig. 5 is a schematic view of a control method of the refrigerator shown in fig. 1;
fig. 6 is a flowchart of a control method of the refrigerator shown in fig. 1.
Detailed Description
Fig. 1 is a schematic block diagram of a refrigerator 10 according to one embodiment of the present invention. The refrigerator 10 may generally include a cabinet 100, a storage device 200, and a control device 400, with the cabinet 100 defining a storage compartment therein.
Fig. 2 is a schematic side view of the storage device 200 of the refrigerator 10 shown in fig. 1, and fig. 3 is a schematic exploded view of the storage device 200 shown in fig. 2. The storage device 200 may be installed in a refrigerating compartment or a temperature-varying compartment according to storage temperature and function. The storage device 200 comprises a storage container 210, an oxygen-removing moisture-permeable assembly 300, a cover plate 350, a light source and a photosensitive sensor 270.
The storage container 210 has a storage space 213 formed therein, and the storage container 210 may be a drawer composed of a container body 211 and a drawing part 212. The drawer is drawably disposed at the bottom of the refrigerating compartment of the refrigerator 10 to open or close the storage space 213.
Fig. 4 is a schematic bottom view of the storage container 210 of the storage device 200 shown in fig. 3. The top surface of the storage container 210 is provided with a ventilation region 221 and a non-ventilation region 222, the ventilation region 221 is disposed at the middle position of the top surface, and the region between the ventilation region 221 and the outer periphery of the top surface is the non-ventilation region 222. The ventilation area 221 is provided with through holes arranged in an array, and the gas in the storage container 210 can escape from the through holes. The breathable zone 221 includes an oxygen scavenging zone 220 and a water scavenging zone 230. The oxygen removing region 220 is located in the middle of the air permeable region 221, and the oxygen removing region 220 is recessed into the storage space 213 to form a recessed portion, which can accommodate external components. The excluding water zone 230, which is adjacent to the excluding oxygen zone 220 and located at both sides of the excluding oxygen zone 220, is configured to allow water vapor inside the container body 211 to permeate outward.
The oxygen-removing moisture-permeable assembly 300 is integrated on the upper side of the top surface of the storage container 210 and comprises a supporting plate 310, a proton exchange membrane group 320, a fan 330 and a moisture-permeable membrane group 340.
The supporting plate 310 covers the air permeable area 221 to form a skeleton of the oxygen-removing moisture permeable assembly 300, and has a receiving cavity for receiving the proton exchange membrane group 320, the blower fan 330, and the moisture permeable membrane group 340, and the receiving cavity is communicated with the air permeable area. The proton exchange membrane module 320, the blower fan 330, and the moisture permeable membrane module 340 may be respectively installed in the receiving cavities to be integrated with the support plate 310. Wherein, proton exchange membrane group 320, fan 330 set up in proper order in the intracavity that holds above the deoxidization district from supreme down, pass through moisture membrane group 340 and set up the intracavity that holds above the dewatering district.
And a proton exchange membrane group 320 configured to consume oxygen inside the storage space 213 through an electrolysis reaction under the action of the electrolysis voltage. The proton exchange membrane module 320 includes: an anode plate, a cathode plate and a proton exchange membrane clamped between the cathode plate and the anode plate. One side of the cathode plate, which faces away from the proton exchange membrane, is exposed to the inside of the storage space and is configured to generate water by utilizing the reaction of hydrogen ions and oxygen; one side of the anode plate, which faces back to the proton exchange membrane, is exposed outside the storage space and is configured to electrolyze water vapor to generate hydrogen ions and oxygen; a proton exchange membrane configured to transport hydrogen ions from the anode plate side to the cathode plate side. That is, the proton exchange membrane set 320 has at least 3 layers of structures, which are an anode plate, a proton exchange membrane and a cathode plate from top to bottom, and each layer of structure is parallel to the horizontal plane.
The fan 330 is disposed above the proton exchange membrane module 320, on a side of the proton exchange membrane module 320 back to the storage space 213, that is, on a side of the anode plate back to the proton exchange membrane, and may be a micro axial fan, a rotating shaft of which is perpendicular to the anode plate, so as to form an air flow flowing through a surface of the anode plate back to the proton exchange membrane, and provide a reactant for the anode plate. The reactant of the anode plate is water, and the anode plate needs to be supplemented with water continuously so that the electrolytic reaction can be continuously carried out. Since the interior temperature of the refrigerator 10 is generally low, the storage compartment has a relatively humid atmosphere therein, which contains a large amount of water vapor in the air. When the oxygen removal moisture permeable assembly 300 is started to work, the control circuit respectively supplies power to the cathode plate and the anode plate, the fan 330 is started at the same time, and the fan 330 blows air to the anode plate and simultaneously blows water vapor in the air to the anode plate together so as to provide reactants to the anode plate.
The moisture permeable membrane group 340 is configured to allow water vapor in the storage space 213 to permeate and discharge, and the moisture permeable membrane group 340 includes a pervaporation membrane, which can allow moisture in the storage container 210 to permeate and discharge, and can block other gases from permeating, thereby preventing gas exchange between the inside and the outside of the storage space 213.
The cover plate 350, which forms a top cover of the container body 211, is provided with a clamping groove adapted to a buckle of the storage container 210, and is configured to cover the upper side of the oxygen-removing and moisture-permeable component 300 to make the appearance neat, and the cover plate 350 is correspondingly provided with a plurality of through holes for allowing the gas in the storage container 210 to escape to the outside.
The proton exchange membrane module 320 may consume oxygen in the air in the storage space and generate a certain amount of moisture, resulting in the storage space becoming increasingly moist. Moisture in the air in the storage container 210 can be conveyed to the outside of the space through the pervaporation membrane by the moisture permeable membrane group 340, so that the humidity in the storage space is always kept in a proper range, and condensation or water dripping is prevented from being generated in the space. The proton exchange membrane group 313 and the moisture permeable membrane group 340 are integrated into the oxygen-removing moisture permeable assembly 300, and the integrated assembly is arranged above the storage container 210 and is communicated with the gas inside the storage container 210, so that the storage of food inside the storage container 210 is facilitated.
The light source and the photo sensor 270 are disposed inside the storage container 210.
The light source (not shown) is installed inside the storage container 210, for example, on the top of the storage container 210 or on the rear wall of the storage container 210, and on the one hand, the light source can be used to illuminate the inside of the storage container 210 after the door body is opened, and on the other hand, the light source can emit visible light for detecting the usage volume of the storage container 210 after the storage container 210 is closed.
And a light sensor 270 also installed inside the storage container 210 for measuring the intensity of the light signal inside the storage container 210. As the volume usage size of the storage container 210 changes, the reflection and blocking of light in the storage container 210 change, and the propagation characteristics of light also differ. Therefore, a technology for detecting the use volume of the refrigerator 10 by using the rule that the intensity of the optical signal of the storage container 210 changes along with the change of the use volume appears.
The control device 400 includes a memory 420 and a processor 410, wherein a control program 421 is stored in the memory 420, and the control program 421 is executed by the processor 410 to implement a control method of the refrigerator 10 according to any one of the following embodiments. The processor 410410 may be a Central Processing Unit (CPU), or a digital processing unit (DSP), etc. The memory 420 is used to store programs executed by the processor 410. The memory 420 may be any medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
The storage space in the storage container 210 has a fixed volume, and if the volume of the stored food is reduced, the volume of air in the storage space is increased, and the oxygen content is increased accordingly. When the oxygen content is increased, the oxygen removal time needs to be prolonged to obtain a good oxygen reduction effect, and conversely, when the oxygen content is reduced, the oxygen removal time needs to be shortened to save electric energy. According to the volume of the stored food, namely the volume use condition, the oxygen content, namely the actual oxygen removal requirement can be indirectly determined, so that the oxygen removal time can be determined. Wherein the volume usage can be determined indirectly by means of the intensity of the light signal detected by the light sensitive sensor 270.
Fig. 5 is a schematic diagram of a control method of the refrigerator 10 shown in fig. 1. The control method may generally include:
in step S502, the intensity of the optical signal detected by the photosensor 270 is acquired.
After the storage container 210 is opened, the storage container can exchange substances with the outside, on one hand, inside and outside air is allowed to circulate, and on the other hand, the volume use condition of the storage container can also change, which can cause the change of the internal oxygen content; the cooling capacity in the refrigerator 10 is also lost when the container 210 is in the open state. Therefore, after the storage container 210 is closed, cooling and detection of the intensity of the optical signal are restarted. The light source emits visible light for detecting the use of the volume of the storage container 210 after the storage container 210 is closed.
The steps before the light sensor 270 starts detecting the intensity of the light signal include: acquiring the trigger signal that the storage container 210 is closed, the refrigeration system of the refrigerator 10 starts to refrigerate the space where the storage container 210 is located.
And step S504, determining the volume use level of the storage container 210 according to the intensity of the optical signal.
The intensity of the optical signal indirectly reflects the volume usage of the storage container 210, and the volume usage may be divided into a plurality of levels, each level corresponding to a numerical range of the intensity of the optical signal and increasing step by step as the intensity of the optical signal decreases.
The volume utilization levels can be set to be multiple, for example, three or four, and preferably four in the present embodiment, according to actual requirements. The fourth level is a full load level, the full load level is a level when the intensity of the optical signal detected by the photosensitive sensor 270 is lower than the first preset value, at this time, almost all of the storage space in the storage container 210 is occupied by the stored food, the volume occupied by the air is small, and the corresponding oxygen content is low. The third grade is a grade when the intensity of the optical signal detected by the photosensitive sensor 270 is higher than the first preset value and lower than the second preset value, the second grade is a grade when the intensity of the optical signal detected by the photosensitive sensor 270 is higher than the second preset value and lower than the third preset value, the first grade is a grade when the intensity of the optical signal detected by the photosensitive sensor 270 is higher than the third preset value and lower than the fourth preset value, at this time, only few foods are stored in the storage container 210, and the space occupancy rate is low. For example, the first to fourth levels of volumetric usage may be 0-25%, 25-50%, 50-75%, 75-100% in order.
The relationship between the volume usage grade and the oxygen content is utilized, the oxygen content is indirectly determined by detecting the volume usage grade, the oxygen removal time can be determined according to the actual oxygen removal requirement under the condition of not using an oxygen concentration sensor, and the hardware cost of the refrigerator 10 is saved.
In step S506, the operation mode of the oxygen-scavenging moisture-permeable assembly 300 is determined according to the volume usage level of the storage container 210.
The operating mode of the oxygen scavenging moisture permeable assembly 300 is preset with the operating time of the initial oxygen scavenging stage. The initial oxygen removal phase is the first time the oxygen removal moisture permeable assembly 300 is activated to remove oxygen after the storage container 210 is closed. Each time the storage container 210 is closed, the initial oxygen removal stage is initiated to re-remove oxygen from the storage space, and the operation time of the initial oxygen removal stage is gradually increased as the volume usage level is decreased.
The periodic parameters of the periodic oxygen removal phase are also preset in the operation mode of the oxygen removal and moisture permeation assembly 300. The periodic deoxygenation stage is a stage of periodically starting the deoxygenation moisture-permeable assembly 300 at intervals when the storage container 210 is kept in a closed state after the initial deoxygenation stage of the deoxygenation moisture-permeable assembly 300 is completed, and periodic parameters of the periodic deoxygenation stage comprise running time and interval time; the oxygen scavenging moisture permeable assembly 300 is configured to scavenge oxygen from the storage container 210 during run time and is configured to stop scavenging oxygen for an interval of time; the sum of the running time and the interval time of the periodic oxygen removal stage in one working period can be a preset constant, the running time is increased step by step along with the reduction of the volume use level, and the interval time is correspondingly reduced along with the increase of the running time.
The step of determining the mode of operation of the oxygen scavenging moisture permeable assembly 300 based on the volumetric usage rating of the storage container 210 further comprises: and judging whether the volume use grade of the storage container 210 is a full-load grade, if not, determining the operation time of the initial oxygen removal stage corresponding to the volume use grade and the cycle parameters of the cycle oxygen removal stage corresponding to the volume use grade, if so, determining the operation time of the initial oxygen removal stage corresponding to the volume use grade, and at the moment, the operation mode of the oxygen removal moisture permeable assembly 300 only comprises the operation time of the initial oxygen removal stage corresponding to the volume use grade.
If the storage container 210 is always kept closed, the external gas slowly permeates into the storage container 210 along with the extension of the closing time, the oxygen content in the storage container 210 is increased, if the volume use level is a full-load level, because the volume of the air in the storage space is small, the oxygen content in the storage container can not be greatly changed due to the permeation of the external gas, therefore, after the operation of the initial deoxygenation stage, a good fresh-keeping effect can be achieved without starting the periodic deoxygenation stage, if the volume use level is not a full-load level, because the volume of the air in the storage space is large, the oxygen content in the storage container can not be greatly changed due to the slow permeation of the external gas, therefore, after the operation of the initial deoxygenation stage, the initial deoxygenation stage also needs to be started, deoxygenation is carried out only according to certain periodic intervals, and the excessive electric energy consumption can be avoided while the good fresh-keeping effect is achieved.
Step S508, controlling the oxygen-removing moisture-permeable assembly 300 according to the operation mode.
For example, for the oxygen-removing and moisture-permeable assembly 300 provided with the proton exchange membrane group 313 and the fan 330, the step of controlling the oxygen-removing and moisture-permeable assembly 300 according to the operation mode includes: in the case that the volume usage level of the storage container 210 is the full load level, the electrical energy required for electrolysis is provided to the proton exchange membrane group 313 according to the determined operation time of the initial oxygen removal stage, and the fan 330 is driven to operate, in the process, if a trigger signal that the storage container 210 is opened is acquired, the control of the moisture-permeable oxygen removal assembly 300 is immediately terminated, the oxygen removal is stopped, and if a trigger signal that the storage container 210 is opened is not acquired, the moisture-permeable oxygen removal assembly 300 is continuously controlled according to the operation time of the initial oxygen removal stage to remove oxygen. When the volume use level of the storage container 210 is a non-full-load level, firstly, the electric energy required by electrolysis is supplied to the proton exchange membrane group 313 according to the determined running time of the initial oxygen removal stage, and the fan 330 is driven to run; and then judging whether a trigger signal that the storage container 210 is opened is acquired, terminating the control of the oxygen removal moisture permeable assembly 300 under the condition that the trigger signal that the storage container 210 is opened is acquired, and providing electric energy required by electrolysis to the proton exchange membrane group 313 according to the determined running time of the initial oxygen removal stage and driving the fan 330 to run under the condition that the trigger signal that the storage container is opened is not acquired.
The operation mode of the oxygen removal moisture permeable assembly 300 can also be preset with the rotating speed of the fan 330 and/or the electrolysis voltage of the proton exchange membrane group 313, the rotating speed of the fan 330 is increased step by step with the reduction of the volume use level, and the electrolysis voltage of the proton exchange membrane group 313 is increased step by step with the reduction of the volume use level. The water vapor content of the anode plate of the proton exchange membrane group 313 can be changed by changing the rotating speed of the fan 330, and the electrochemical reaction rate of the cathode plate and the anode plate can be changed by changing the electrolysis voltage of the proton exchange membrane group 313.
Through handling the light signal intensity that light sensor 270 detected, confirm the volume use level of storing container 210, and then confirm the deoxidization time of the moisture permeable subassembly 300 of deoxidization, then pass through moisture permeable subassembly 300 operation according to the deoxidization time control deoxidization corresponding with volume use level, can control opening and shutting of deoxidization work according to the actual deoxidization demand, practice thrift the electric energy when guaranteeing the deoxidization effect.
In other alternative embodiments, the mode of operation of the oxygen scavenging moisture permeable assembly may also be set at the user interface. Through predetermineeing the deoxidization time gear of different grades, according to the type, quantity and the occupation space of the food that the storing container stored, the gear of manual selection deoxidization time also can confirm the operating duration of the moisture permeable subassembly of deoxidization according to the actual storing condition, practices thrift the electric energy when guaranteeing the deoxidization effect.
Fig. 6 is a flowchart of a control method of the refrigerator 10 shown in fig. 1. The process comprises the following steps:
step S602, acquiring a trigger signal that the storage container 210 is closed, and controlling a refrigeration system of the refrigerator 10 to start to refrigerate a space where the storage container 210 is located. Meanwhile, the light source emits visible light for detecting the volume use condition of the storage container 210 within the storage container 210.
In step S604, the intensity of the optical signal detected by the photosensor 270 is acquired.
And step S606, determining the volume use level of the storage container 210 according to the intensity of the optical signal.
In step S608, it is determined whether the volume use level of the storage container 210 is the full-load level, and if the volume use level is the full-load level, steps S610 to S616 are performed, and if the volume use level is not the full-load level, steps S618 to S626 are performed.
In step S610, the operating time of the initial oxygen scavenging period corresponding to the volume usage level is determined.
Step S612, supplying the electric energy required for electrolysis to the proton exchange membrane group 313 according to the operation time corresponding to the volume usage level in the initial oxygen removal stage, and driving the fan 330 to operate.
In step S614, it is determined whether a trigger signal indicating that the storage container 210 is opened is acquired. If so, go to step S612, otherwise, go to step S610.
In step S616, the control of the oxygen-scavenging moisture permeable assembly 300 is terminated.
In step S618, the operating time of the initial oxygen removal phase corresponding to the volume usage level and the cycle parameters of the initial oxygen removal phase corresponding to the volume usage level are determined.
In step S620, the electric energy required for electrolysis is supplied to the proton exchange membrane group 313 according to the operation time of the initial oxygen removal stage, and the blower 330 is driven to operate.
In step S622, it is determined whether a trigger signal indicating that the storage container 210 is opened is acquired. If so, step S626 is executed, and if not, step S624 is executed.
In step S624, the electric energy required for electrolysis is supplied to the proton exchange membrane group 313 according to the operation time of the periodic oxygen removal stage, and the fan 330 is driven to operate.
In step S626, control of the oxygen scavenging moisture permeable assembly 300 is terminated.
In the refrigerator 10 and the control method thereof according to the embodiment, the oxygen-removing moisture-permeable assembly 300 and the photosensitive sensor 270 are integrated on the storage container 210 of the refrigerator 10, the volume use level of the storage container 210 is determined by processing the intensity of the optical signal detected by the photosensitive sensor 270, the oxygen-removing time of the oxygen-removing moisture-permeable assembly 300 is further determined, then the operation of the oxygen-removing moisture-permeable assembly 300 is controlled according to the oxygen-removing time corresponding to the volume use level, the operation mode of the oxygen-removing process can be adjusted according to the actual oxygen-removing requirement, and the electric energy is saved while the oxygen-removing effect is ensured; the relationship between the volume usage level and the oxygen content is utilized, the oxygen content is indirectly determined by detecting the volume usage level, the oxygen removal time can be determined according to the actual oxygen removal requirement under the condition of not using an oxygen concentration sensor, the hardware cost of the refrigerator 10 is saved, and the control program is simplified.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (7)
1. A control method of a refrigerator, wherein
A storage container is arranged in the refrigerator; an oxygen-removing and moisture-permeable component is integrated on the upper surface of the storage container and is configured to consume oxygen inside the storage container through an electrolytic reaction; a photosensitive sensor is also arranged in the storage container; and the control method includes:
after the storage container is closed, acquiring the intensity of an optical signal detected by the photosensitive sensor;
determining the volume use level of the storage container according to the light signal intensity; the volume usage level corresponds to a numerical range of the light signal intensity and is increased step by step with the decrease of the light signal intensity;
determining the operation mode of the oxygen-removing moisture-permeable component according to the volume use grade of the storage container;
controlling the oxygen-removing and moisture-permeable component according to the operation mode; wherein
The operating time of an initial deoxygenation stage is preset in the operating mode of the deoxygenation moisture-permeable assembly, and the initial deoxygenation stage is a stage of starting deoxygenation for the first time by the deoxygenation moisture-permeable assembly after the storage container is closed; the running time of the initial oxygen removal stage is increased in steps along with the reduction of the volume use grade;
the operating mode of the oxygen removal moisture permeable component is also preset with periodic parameters of a periodic oxygen removal stage, wherein the periodic oxygen removal stage is a stage of starting the oxygen removal moisture permeable component periodically at intervals when the storage container is kept in a closed state after the oxygen removal moisture permeable component completes the initial oxygen removal stage;
the step of determining the operation mode of the oxygen-removing moisture-permeable assembly according to the volume use grade of the storage container further comprises the following steps:
judging whether the volume use level of the storage container is a full-load level, wherein the full-load level is a level when the intensity of the optical signal detected by the photosensitive sensor is lower than a first preset value;
if not, determining the period parameters corresponding to the volume use levels in the period deoxygenation stage; and is
The period parameters of the periodic oxygen removal stage comprise running time and interval time; the oxygen-scavenging moisture permeable component is configured to scavenge oxygen from the storage container during the run time and is configured to cease scavenging oxygen during the interval time; the operation time is increased in steps as the volume usage level is decreased, and the interval time is decreased in correspondence with the increase of the operation time.
2. The control method according to claim 1, further comprising:
and acquiring a trigger signal that the storage container is closed, and controlling the photosensitive sensor to start detecting after a refrigerating system of the refrigerator starts to refrigerate the space where the storage container is located.
3. The control method according to claim 1,
the step of determining the mode of operation of the oxygen scavenging moisture permeable assembly based on the volumetric usage rating of the storage container further comprises:
and if the volume use grade of the storage container is the full load grade, determining the operation time of the initial oxygen removal stage corresponding to the volume use grade.
4. The control method of claim 1, wherein the oxygen-scavenging moisture permeable assembly comprises:
the side, facing away from the storage space of the storage container, of the proton exchange membrane group is exposed outside the storage space and is configured to electrolyze water vapor to generate hydrogen ions and oxygen; the surface of the proton exchange membrane group facing the storage space of the storage container is exposed to the inside of the storage space and is configured to generate water by utilizing the reaction of hydrogen ions and oxygen;
the fan is arranged on one side of the proton exchange membrane group back to the storage space and promotes to form airflow flowing through one surface of the proton exchange membrane group back to the storage space of the storage container;
the step of controlling the oxygen-removing and moisture-permeable component according to the operation mode comprises the following steps: and providing electric energy required by electrolysis for the proton exchange membrane group according to the operation mode, and driving the fan to operate.
5. The control method according to claim 4,
the operating mode of the oxygen removal and moisture permeation assembly is preset with the rotating speed of the fan and/or the electrolysis voltage of the proton exchange membrane group.
6. The control method according to claim 1, further comprising:
and acquiring a trigger signal that the storage container is opened, and stopping controlling the oxygen removal moisture permeable assembly.
7. A refrigerator, comprising:
the oxygen-removing moisture-permeable component is integrated on the upper surface of the storage container and is configured to consume oxygen inside the storage container through an electrolytic reaction; the storage container is internally provided with a photosensitive sensor which is configured to detect the use volume of the storage container through an optical signal;
a control device, comprising: a processor and a memory, the memory having stored therein a control program for implementing the control method according to any one of claims 1-6 when executed by the processor.
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| TWI832497B (en) * | 2022-10-18 | 2024-02-11 | 台灣松下電器股份有限公司 | Refrigerator drawers and refrigerators |
| CN115530412B (en) * | 2022-10-27 | 2023-11-03 | 天津森罗科技股份有限公司 | Dynamic tobacco gas regulating alcoholization method |
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