CN106679319A - Refrigeration device and preservation control method thereof - Google Patents

Refrigeration device and preservation control method thereof Download PDF

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Publication number
CN106679319A
CN106679319A CN201611097451.7A CN201611097451A CN106679319A CN 106679319 A CN106679319 A CN 106679319A CN 201611097451 A CN201611097451 A CN 201611097451A CN 106679319 A CN106679319 A CN 106679319A
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CN
China
Prior art keywords
fresh
keeping
food
subspace
aspiration pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201611097451.7A
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Chinese (zh)
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CN106679319B (en
Inventor
姜波
王磊
娄喜才
王胜飞
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Qingdao Haier Co Ltd
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Qingdao Haier Co Ltd
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Priority to CN201611097451.7A priority Critical patent/CN106679319B/en
Publication of CN106679319A publication Critical patent/CN106679319A/en
Priority to PCT/CN2017/114255 priority patent/WO2018099474A1/en
Application granted granted Critical
Publication of CN106679319B publication Critical patent/CN106679319B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • F25D29/003Arrangement or mounting of control or safety devices for movable devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042Air treating means within refrigerated spaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062Arrangements 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
    • F25D17/065Arrangements 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • F25D29/005Mounting of control devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00Details 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
    • F25D2317/04Treating air flowing to refrigeration compartments

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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 refrigeration device and a preservation control method thereof. The refrigeration device comprises a box body, a gas-adjusting membrane module and an air suction pump, wherein storage space is defined in the box body, sealed preservation subspace is formed in the storage space, and the air pump is configured to enable gas of the preservation subspace of the storage space to permeate the air conditioning membrane module so that a gas atmosphere beneficial to food preservation can be formed in the preservation subspace of the storage space. The preservation control method includes the steps that food type information which is input externally is obtained; a corresponding preservation operation mode is determined according to the food type information, the refrigeration device has various preset preservation operation modes corresponding to food, each preservation operation mode has a preset start-stop period of the air pump, and the start-stop period guarantees that the gas atmosphere in the preservation subspace meets the storage conditions of the food stored in the preservation subspace; and the air suction pump is driven to operate according to the determined start-stop period. According to the refrigeration device and the preservation control method thereof, the storage requirements of different types of foods can be met.

Description

Refrigerating device and its fresh-keeping control method
Technical field
The present invention relates to storing technical field, more particularly to a kind of refrigerating device and its fresh-keeping control method.
Background technology
Food is the energy source of people's existence, most important for people.For food storage, main two Aspect is to be incubated and fresh-keeping, it is however generally that, temperature has obvious for the effect of the microbial activities on food, the enzyme in food Influence, the reduction of temperature can make food delay to go bad, and refrigerator is to maintain a kind of refrigeration plant of constant low temperature, is also that one kind makes Food or other articles keep the product for civilian use of constant low temperature cold conditions.
With the raising of quality of the life, consumer to storing the fresh-keeping requirement of food also more and more higher, particularly to food The requirement of color and luster, the mouthfeel of thing etc. also more and more higher.Therefore, the food of storage should also be as ensureing during storing, the color of food Pool, mouthfeel, freshness etc. keep constant as far as possible.Therefore user it is also proposed higher wanting to the preservation technique of refrigerator Ask.
The preservation technique of refrigerator mainly uses vacuum freshness retaining technology in the prior art, and vacuum freshness retaining food eliminates packaging to be held Partial air (oxygen) in device, destroys the condition of bacterium and microbial growth, so that effectively prevent food spoilage goes bad. At present through frequently with vacuum freshness retaining mode for vacuum bag is fresh-keeping and vacuum storing compartment is fresh-keeping.
Fresh-keeping using vacuum bag, consumer stores food and is required for carrying out vacuumizing action every time, and troublesome poeration cannot Consumer's likes.It is fresh-keeping using vacuum storing compartment, because casing etc. is rigid structure, vacuum state is kept, it is true to taking out The requirement of empty set system is very high, and the sealing property requirement to refrigerator is very high, often picks and places an article, and the new air poured into is more, to ice The consumption of case energy is larger.
On the other hand under the vacuum environment in refrigerator, food reception cold is relatively difficult, is particularly disadvantageous for food Cooling.Further, since being vacuum environment, user opens refrigerator doors etc. every time needs the very big strength of expense, user is caused using not Just.Although some refrigerators can by pumped vacuum systems to indoor ventilation between vacuum storing, but can so cause user wait compared with For a long time, poor in timeliness.Vacuum time is more long, and it is serious to will also result in the deformation such as refrigerator body, i.e., existing with vacuumizing knot The refrigerator of structure can not complete vacuum freshness retaining well, it is necessary to the intensity of casing etc. is very big, realizes requiring very high, and cost is very high.
The content of the invention
It is an object of the present invention to provide relatively low, the of good preservation effect refrigerating device of a kind of cost and its fresh-keeping Control method.
The present invention one is further objective is that will cause that refrigerating device and its fresh-keeping control method meet inhomogeneity The storage requirements of the food of type.
Present invention firstly provides a kind of fresh-keeping control method of refrigerating device, refrigerating device includes defining The casing of storage space, controlled atmosphere membrane module, aspiration pump, wherein, closed fresh-keeping subspace is formed with storage space, and take out The gas that air pump is configured to make the fresh-keeping subspace of storage space permeates by controlled atmosphere membrane module, with the fresh-keeping son of storage space The atmosphere beneficial to food fresh-keeping is formed in space, and fresh-keeping control method includes:Obtain the food preservation of outside input Information, comprises at least the kind of information that food is preserved in fresh-keeping subspace in food preservation information;Species letter according to food Breath determines corresponding fresh-keeping operational mode, and refrigerating device is previously provided with the corresponding fresh-keeping operational mode of various foods, often A kind of start and stop cycle that fresh-keeping operational mode is previously provided with aspiration pump is planted, the start and stop cycle ensures the gas atmosphere in fresh-keeping subspace Enclose the storage condition for meeting the food preserved in fresh-keeping subspace;Aspiration pump is driven according to the start and stop periodic duty determined.
Alternatively, refrigerating device also includes:Human-computer interaction device, and obtain the food preservation information of outside input The step of also include:Receive the food preservation information that user is input into by human-computer interaction device.
Alternatively, human-computer interaction device includes multiple buttons, and each button corresponds to a group food, and it is logical to receive user The step of food preservation information for crossing human-computer interaction device input, also includes:The Action Events of the multiple buttons of detection;According to operation Event determines selection operation of the user to multiple buttons;The corresponding food species of selected button are determined, to obtain food storage Tibetan information.
Alternatively, fresh-keeping operational mode is also previously provided with the initial operating time of aspiration pump, and fresh-keeping control method Also include:Detect whether initialization event occur;After there is initialization event, when driving aspiration pump continuous service initial launch Between, so that fresh-keeping subspace forms atmosphere.
Alternatively, initialization event includes the event that fresh-keeping subspace is opened and closed, and is driving aspiration pump according to determination Also include during the start and stop periodic duty for going out:Detect the event that fresh-keeping subspace is opened and closed;It is determined that fresh-keeping subspace quilt After opening, aspiration pump is driven to remain turned-off;After it is determined that fresh-keeping subspace is closed, aspiration pump continuous service initial launch is driven Time.
Alternatively, also include after it is determined that fresh-keeping subspace is closed:Send the cue for updating food preservation information; And reacquire the food preservation information of outside input.
According to another aspect of the present invention, a kind of refrigerating device is additionally provided, it includes:Casing, limits in it By storage space, closed fresh-keeping subspace is formed with storage space;Controlled atmosphere membrane module, its surrounding space and fresh-keeping subspace Connection, and controlled atmosphere film is provided with, oxygen rich gas collecting chamber is formed with controlled atmosphere membrane module;Aspiration pump, its entrance point is communicated to richness Carrier of oxygen collecting chamber, and be configured to outwards extract the gas of oxygen rich gas collecting chamber out, so that at least portion in fresh-keeping subspace Oxygen is divided to enter oxygen rich gas collecting chamber by controlled atmosphere film, so as to reduce the oxygen concentration in fresh-keeping subspace;Controller, and takes out The control end of air pump is connected, and is configured to:The food preservation information of outside input is obtained, is comprised at least in food preservation information and protected The kind of information of food is preserved in fresh subspace;Kind of information according to food determines corresponding fresh-keeping operational mode, refrigeration Refrigerating plant is previously provided with various fresh-keeping operational modes, and every kind of fresh-keeping operational mode is previously provided with a kind of start and stop of aspiration pump Cycle, the start and stop cycle ensures that the atmosphere in fresh-keeping subspace meets the storage bar of the food preserved in fresh-keeping subspace Part;Aspiration pump is driven according to the start and stop periodic duty determined.
Alternatively, above-mentioned refrigerating device also includes:Human-computer interaction device, is configured to obtain the food storage of user input Tibetan information;And controller, is also connected with human-computer interaction device, and it is configured to receive the food preservation that human-computer interaction device is obtained Information.
Alternatively, human-computer interaction device includes multiple buttons, is arranged in the cavity wall of fresh-keeping subspace, each button correspondence In a group food, and controller, it is configured to detect the Action Events of multiple buttons;Determine user to many according to Action Events The selection operation of individual button;The corresponding food species of selected button are determined, to obtain food preservation information.
Alternatively, above-mentioned refrigerating device also includes:Open-closed detector, is configured to detect what fresh-keeping subspace was opened and closed Event;And controller, is configured to after it is determined that fresh-keeping subspace is opened, aspiration pump is driven to remain turned-off;It is determined that protecting After fresh subspace is closed, aspiration pump continuous service initial operating time is driven, fresh-keeping operational mode is also previously provided with initially Run time.
Refrigerating device of the invention and its fresh-keeping control method, creatively propose (such as rich using controlled atmosphere film Oxygen film) the particular kind of gas (such as oxygen) in air in closed fresh-keeping subspace discharged the space by component, so that Rich nitrogen oxygen deprivation is obtained in the space or other are beneficial to the atmosphere of food fresh-keeping.The atmosphere of such as rich nitrogen oxygen deprivation By reducing the content of oxygen in fruits and vegetables shelf space, the intensity of fruit/vegetable aerobic breathing is reduced, while ensureing that the breathing on basis is made With preventing fruits and vegetables from carrying out anaerobic respiration, so as to reach the purpose of fruits and vegetables long-period freshness preserving.Also, the present invention is always according to preserving food The species of thing, under conditions of atmosphere is maintained at most beneficial for this kind of food, so as to farthest meet food storage The need for depositing.
Further, refrigerating device of the invention and its fresh-keeping control method, using physical button or other forms Man Machine Interface obtain food kind of information, it is easy to operate, it is user-friendly.
According to the accompanying drawings to the detailed description of the specific embodiment of the invention, those skilled in the art will be brighter Of the invention above-mentioned and other purposes, advantages and features.
Brief description of the drawings
Describe some specific embodiments of the invention in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter. Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that these What accompanying drawing was not necessarily drawn to scale.In accompanying drawing:
Fig. 1 is the principle schematic of refrigerating device according to an embodiment of the invention;
Fig. 2 is the schematic diagram of refrigerating device according to an embodiment of the invention;
Fig. 3 is the schematic diagram at another visual angle of structure shown in Fig. 2;
Fig. 4 is the schematic local structural graph of refrigerating device according to an embodiment of the invention;
Fig. 5 is the schematic, exploded of structure shown in Fig. 4;
Fig. 6 is the exploded view of controlled atmosphere membrane module 30 in refrigerating device according to an embodiment of the invention;
Fig. 7 is the schematic block diagram of refrigerating device according to an embodiment of the invention;
Fig. 8 is the schematic diagram of the fresh-keeping control method of refrigerating device according to an embodiment of the invention;And
Fig. 9 is that a kind of of the fresh-keeping control method of refrigerating device according to an embodiment of the invention performs flow.
Specific embodiment
The refrigerating device of the embodiment of the present invention is formed in fresh-keeping subspace using controlled atmosphere film and meets article storing Atmosphere, for example, take oxygen permeable membrane to form the atmosphere of oxygen-enriched poor nitrogen.The operation principle of wherein oxygen permeable membrane is to utilize air Middle each component passes through infiltration rate difference during oxygen permeable membrane, and under pressure differential driving, oxygen preferentially passes through oxygen permeable membrane in making air, In the prior art, oxygen permeable membrane is generally used for preparing oxygen, so as in the field application such as medical treatment, fermentation, burning.Of the invention real Apply in example, refrigerating device then discharges oxygen using oxygen permeable membrane so that the oxygen concentration of fresh-keeping subspace declines, realize profit In the atmosphere that food is preserved.
In the present embodiment, controlled atmosphere technology stores the atmosphere (gas componant of closing space residing for thing by adjusting Ratio or gas pressure) mode extend the technology of shelf life of food products, its general principle is:In certain closing space In (fresh-keeping subspace 271), obtain being different from the atmosphere of normal air constituent by various regulative modes, to suppress to cause The activity of storage thing (usually food) putrid and deteriorated physiological and biochemical procedure and microorganism.Especially, in the present embodiment, institute The controlled atmosphere of discussion is by specifically designed in the controlled atmosphere technology being adjusted to gas component ratio.
Those skilled in the art know that normal air constituent includes (pressing volume percentage, hereafter together):About 78% Nitrogen, about 21% oxygen, about 0.939% rare gas (helium, neon, argon, krypton, xenon, radon), 0.031% carbon dioxide, with And 0.03% other gases and impurity (for example, ozone, nitric oxide, nitrogen dioxide, vapor etc..In controlled atmosphere field, The fresh-keeping gas atmosphere of rich nitrogen oxygen deprivation is generally obtained by the way of reducing oxygen content using nitrogen-rich gas are filled with to closing space Enclose.Those skilled in the art will be appreciated that nitrogen-rich gas refer to the gas that nitrogen content exceedes nitrogen content in above-mentioned normal air Body, such as nitrogen content therein can be 95%~99%, even more high;And the fresh-keeping atmosphere of rich nitrogen oxygen deprivation refers to nitrogen Content is more than the atmosphere of nitrogen content, oxygen content less than oxygen content in above-mentioned normal air in above-mentioned normal air.
Although there is also controlled atmosphere technology in the prior art, its history can trace back to German biologist's hair in 1821 Existing fruit and vegetable can reduce metabolism in low oxygen level and start.But up to this point, protected due to being conventionally used to controlled atmosphere The fresh equipment of making nitrogen is bulky, with high costs, causes the technology substantially also to be limited to use in various large-scale specialties On storage (typically at least more than 30 tons of storage capacity).Therefore in the prior art one in the small-sized refrigerating equipment such as refrigerator As still use vacuum freshness retaining technology.
In the present embodiment, by above-mentioned controlled atmosphere membrane module economically by Air-conditioning system miniaturization, mute, so as to be applicable In the small-sized refrigerating equipment such as refrigerator, its introduction about the construction is as follows:
Fig. 1 is the principle schematic of refrigerating device according to an embodiment of the invention, and Fig. 2 is according to the present invention one The schematic diagram of the refrigerating device of individual embodiment, Fig. 3 is the schematic structure at another visual angle of structure shown in Fig. 2 Figure.As illustrated, the embodiment of the invention provides a kind of refrigerating device, it may include that casing 20, door body (does not show in figure Go out), controlled atmosphere membrane module 30, aspiration pump 40 and refrigeration system (not shown).Defined in the casing 20 of refrigerating device Storage space, the storage space can be configured to refrigerating chamber 27, refrigerating chamber 25, temperature-changing chamber 26 etc. according to cryogenic temperature.Refrigeration is cold It can be the refrigerator at least with refrigerating chamber 27 and refrigerating chamber 25 to freeze device.Refrigeration system can be common compression refrigerating system or half Conductor refrigeration system etc., it provides cold for example, by direct-cooled and/or air-cooled form to storing compartment, so that storing compartment has Desired preservation temperature.In certain embodiments, the preservation temperature of cold compartment of refrigerator 27 can be 2~9 DEG C, or can be 4~7 ℃;The preservation temperature of refrigerating chamber 25 can be -22~-14 DEG C, or can be -20~16 DEG C.Refrigerating chamber 25 is arranged at refrigerating chamber 27 Lower section, temperature-changing chamber 26 is arranged between refrigerating chamber 25 and refrigerating chamber 27.Temperature range in refrigerating chamber 25 is general at -14 DEG C To -22 DEG C.Temperature-changing chamber 26 can be adjusted according to demand, to store suitable food.
In the present embodiment, closed fresh-keeping subspace 271 is formed with storage space, the fresh-keeping subspace 271 can be with It is arranged in any of the above-described inter-species room, is preferentially configured in refrigerating chamber 27 and temperature-changing chamber 26.Such as fresh-keeping subspace 271 can be It is arranged on the bottom storage space of refrigerating chamber 27.
Door body may be pivotally mounted to casing 20, be configured to open or close the storage space of the restriction of casing 20.In order to protect The sealing of fresh-keeping subspace 271 is demonstrate,proved, door body inner side is also provided with wicket, to open or close fresh-keeping subspace 271, from And form layer door structure.In some alternative implementation methods, the refrigerating device can also be formed using drawer State fresh-keeping subspace 271.Drawer can have drawer cylinder 22 and drawer body 23.Fresh-keeping son is formed using drawer type storing compartment Space 271.
Drawer cylinder 22 is fixed in storage space (such as bottom of refrigerating chamber 27), and drawer body 23 is slidably mounted In drawer cylinder 22, the front end of drawer body 23 is provided with end plate, coordinates with drawer cylinder 22, can close fresh-keeping subspace 271 opening.A kind of specific mode operationally can outwards be extracted out for drawer body 23 from the forward direction opening of drawer cylinder 22 Be pushed home into.End plate causes the closure of openings of fresh-keeping subspace 271 by sealing structure.
In some embodiments of the invention, drawer cylinder 22 can form sealing between the end plate by drawer body 23 Portion, the sealing can suitably gas leakage realize air pressure balance.Can be by drawer cylinder 22 in some other embodiments The modes such as millimetre-sized micropore or check valve are set and ensure air pressure balance.
Refrigeration system can be the cooling cycle system being made up of compressor, condenser, throttling arrangement and evaporator etc..Compression Machine is installed in compressor room 24.Evaporator is configured to directly or indirectly to providing cold in storage space.For example, when this is cold When hiding refrigerating plant for family expenses compression direct cooling refrigerator, evaporator may be disposed at the rear surface outside or inner side of inner bag 21.When this When refrigerating device is family expenses compression wind cooling refrigerator, also there is evaporator room in casing 20, evaporator room passes through wind path system System is connected with storage space, and evaporator is set in evaporator room, and exit is provided with blower fan, is circulated with to storage space Refrigeration.Because such refrigeration system is in itself those skilled in the art known and be easily achieved, in order to not cover and obscuring this The inventive point of application, does not make more repeating in itself to refrigeration system hereinafter.
Controlled atmosphere membrane module 30 has controlled atmosphere film and oxygen rich gas collecting chamber, around the pressure of oxygen rich gas collecting chamber is less than During the pressure of environment, the gas (most of oxygen) of surrounding environment enters controlled atmosphere oxygen rich gas collecting chamber through controlled atmosphere film.Specifically Ground, the opposite side of controlled atmosphere film can contact directly with fresh-keeping subspace 271, or be communicated to the circulatory flow of fresh-keeping subspace 271 (or cyclic space) is contacted, so that fresh-keeping subspace can be made in pressure of the pressure of oxygen rich gas collecting chamber less than subspace Controlled atmosphere gas permeation controlled atmosphere film in 271 in air enters oxygen rich gas collecting chamber, in the case of using oxygen permeable membrane, fresh-keeping son The oxygen in space 271 is extracted, so that fresh-keeping subspace 271 forms the atmosphere of oxygen deprivation.
Aspiration pump 40 can be arranged in compressor room 24, and the entrance point of aspiration pump 40 is via pipeline 50 and controlled atmosphere membrane module 30 oxygen rich gas collecting chamber connection, is configured to outwards extract the gas of oxygen rich gas collecting chamber out, so that fresh-keeping subspace 271 Interior at least part of oxygen enters oxygen rich gas collecting chamber by controlled atmosphere film, so as to reduce the oxygen concentration in fresh-keeping subspace. Aspiration pump 40 is configured to extract out gas of the oxygen rich gas collecting chamber rich in oxygen, reduces the oxygen concentration of fresh-keeping subspace 271. To obtain the atmosphere that rich nitrogen oxygen deprivation is beneficial to food fresh-keeping in fresh-keeping subspace 271.
Refrigerating device of the invention can make to form the gas that rich nitrogen oxygen deprivation is beneficial to food fresh-keeping in fresh-keeping subspace 271 Body atmosphere, the atmosphere reduces the intensity of fruit/vegetable aerobic breathing by reducing the content of oxygen in fruits and vegetables shelf space, while Ensure the respiration on basis, prevent fruits and vegetables from carrying out anaerobic respiration, so as to reach the purpose of fruits and vegetables long-period freshness preserving.And, the gas Body atmosphere also has the gas such as substantial amounts of nitrogen, will not reduce article in subspace by cold efficiency, fruits and vegetables etc. can be made effective To storage.Aspiration pump 40 is arranged in compressor room 24, can make full use of the space of compressor room 24, does not take other ground additionally Side, therefore the additional volumes of refrigerating device will not be increased, the compact conformation of refrigerating device can be made.
In some embodiments of the invention, aspiration pump 40 and compressor can be respectively arranged at the two of compressor room 24 Side, is spaced, so that the distance of the Range compress machine of aspiration pump 40 is distant, reduces noise superposition and used heat superposition.For example, taking out Air pump 40 may be disposed at one end that door body pivots side of closing on of compressor room 24.When refrigerating device is side by side combination refrigerator, Aspiration pump 40 may be disposed at the optional position of compressor room 24.In other embodiments of the invention, aspiration pump 40 can also Neighbouring compressor is set, and such as aspiration pump 40 is arranged at one end of compressor room 24, and in compressor and compressor room 24 Between the wall of side.
In some embodiments of the invention, aspiration pump 40 can be installed in seal box, and seal box can be by installing bottom Plate is installed in compressor room 24.The noise and/or used heat that seal box can largely intercept aspiration pump 40 are outwards propagated.
Fig. 4 is the schematic local structural graph of refrigerating device according to an embodiment of the invention, and Fig. 5 is figure The schematic, exploded of structure shown in 4, controlled atmosphere membrane module 30 may be disposed in the cylinder of drawer cylinder 22, is preferably provided at and takes out The roof of drawer cylinder 22.The accommodating chamber 31 connected with fresh-keeping subspace 271 is specifically provided with the roof of drawer cylinder 22.Take out At least one first passages are offered in wall between the accommodating chamber 31 of the roof of drawer cylinder 22 and fresh-keeping subspace 271 222 and at least one second passages 223 that open up are spaced with least one first passage 222, with respectively in diverse location Connection accommodating chamber 31 and fresh-keeping subspace 271, accommodating chamber 31 is with fresh-keeping subspace 271 via at least one first intercommunicating pores 222 Connected with least one second intercommunicating pores 223;Controlled atmosphere membrane module 30 is arranged in accommodating chamber 31, can be arranged at least one The top of two intercommunicating pores 223.Accommodating chamber 31 constitutes the cyclic space connected with fresh-keeping subspace 271, so that controlled atmosphere membrane module 30 In controlled atmosphere film 36 contacted with the gas in fresh-keeping subspace 271.First intercommunicating pore 222 and the second intercommunicating pore 223 are aperture, And quantity can be multiple.In some alternate embodiments, the roof inner side of the first drawer cylinder 22 has recessed groove.Controlled atmosphere Membrane module 30 is arranged in the recessed groove of the roof of the first drawer cylinder 22.
In some embodiments of the invention, in order to promote fresh-keeping subspace 271 to be flowed with the gas in accommodating chamber 31, the Blower fan 60 can also be set in the accommodating chamber 31 of one closed component 71, and blower fan 60 is used to be formed logical via at least one first successively Stomata 222, the passage 223 of accommodating chamber 31 and at least one second simultaneously return to the air-flow of the fresh-keeping subspace 271, so as to promote The gas of fresh-keeping subspace 271 enters accommodating chamber 31 via the first intercommunicating pore 222, and makes the gas in accommodating chamber 31 via second Intercommunicating pore 223 enters fresh-keeping subspace 271, so as to form the air-flow via controlled atmosphere membrane module 30.
The position that blower fan 60 is placed in accommodating chamber 31 may be at the top of at least one first intercommunicating pores 222, and it promotes to protect The gas of fresh subspace 271 enters accommodating chamber 31 via at least one first intercommunicating pore 222, and passes through the gas in accommodating chamber 31 Fresh-keeping subspace 271 is entered by least one second intercommunicating pore 223, is separated out from by its gas with by controlled atmosphere membrane module 30 Oxygen.
Blower fan 60 preferably uses centrifugal blower, can be arranged in gas collection chamber 31 at first intercommunicating pore 222.Namely Say, centrifugal blower 60 is located at the top of at least one first intercommunicating pores 222, and air inlet is right against the first intercommunicating pore 222.Centrifugation The gas outlet of blower fan 60 can be towards controlled atmosphere membrane module 30.At least one second intercommunicating pores 223 can be located under controlled atmosphere membrane module 30 Side.
The roof of the first drawer cylinder 22 includes lower board unit 224 and ceiling plate portion 225, accommodating chamber 31 is limited jointly, for example The upper surface of lower board unit 224 can form recessed groove, and ceiling plate portion 225 is covered on recessed groove, to form accommodating chamber 31.At least one First intercommunicating pore 222 is arranged at roof front portion, and at least one second intercommunicating pores 223 are arranged at roof rear portion.Centrifugal blower 60 sets The front portion of accommodating chamber 31 is placed in, controlled atmosphere membrane module 30 is arranged at the rear portion of accommodating chamber 31.
Controlled atmosphere membrane module 30 has controlled atmosphere film 36 and an oxygen rich gas collecting chamber, and controlled atmosphere film 36 side towards oxygen rich gas Collecting chamber, in pressure of the pressure of oxygen rich gas collecting chamber less than the opposite side of controlled atmosphere film 36, to make the another of controlled atmosphere film 36 Oxygen in the air of side enters oxygen rich gas collecting chamber through controlled atmosphere film 36.Specifically, the controlled atmosphere membrane module 30 can be with company Circulatory flow (the i.e. accommodating chamber 31) contact of fresh-keeping subspace 271 is passed to, so as to can be less than in the pressure of oxygen rich gas collecting chamber During the pressure of fresh-keeping subspace 271, make oxygen in gas in accommodating chamber 31 (from the fresh-keeping subspace 271) relative to Nitrogen in the surrounding space air-flow of controlled atmosphere membrane module 30 more enters oxygen rich gas collecting chamber through controlled atmosphere film, also will blower fan 60 oxygen formed in air-flow more enter oxygen rich gas collecting chamber relative to nitrogen through controlled atmosphere film.It is multiple first closed group Part 71 can use the identical structure, specific size can be arranged as required to as identical or different.
Fig. 6 is the exploded view of controlled atmosphere membrane module 30 in refrigerating device according to an embodiment of the invention, controlled atmosphere film Component 30 can be in plate, and the controlled atmosphere membrane module 30 may also include support frame 32.Support frame 32 has for being parallel to each other One surface and second surface, are formed with and extend on the first surface respectively, extend on a second surface, and through support frame To connect multiple gas channels of first surface and second surface, multiple gas channels are collectively forming oxygen rich gas collecting chamber.
Controlled atmosphere film 36 can be two-layer, and the both sides of support frame 32 are layed in respectively, so that closing oxygen rich gas collecting chamber, often Layer controlled atmosphere film 36 can include that one or more controlled atmosphere film layer is folded and be formed.Gas permeation controlled atmosphere film 36 is a process for complexity, It is through the surface dissolving that mechanism is usually that gas molecule is adsorbed to controlled atmosphere film 36 first, then the controlled atmosphere film in controlled atmosphere film 36 Middle dissolving realizes the separation of gas with the difference of diffusion coefficient.Under gas is acted on due to the pressure differential of the both sides of controlled atmosphere film 36, The fast oxygen of infiltration rate is enriched with the per-meate side of controlled atmosphere film 36, so as to converge in oxygen rich gas collecting chamber.
Support frame 32 may include frame, the structure such as floor and/or flat board for being arranged in frame, between floor, floor Gas channel can be formed between flat board etc., can open up fluted on the surface of floor, on the surface of flat board, to form air-flow Passage.Floor and/or flat board can improve structural strength of controlled atmosphere membrane module 30 etc..That is, support frame 32 has mutually Parallel first surface and second surface, and it is internally formed the multiple gas channels connected with first surface and second surface. Two controlled atmosphere films 36 are laid on the first surface and second surface of support frame 32 respectively, with the multiple gas with support frame 32 Closing forms oxygen rich gas collecting chamber to circulation road jointly.
In some embodiments of the invention, support frame 32 includes the aspirating hole connected with aforesaid plurality of gas channel 33, it is arranged on frame 32, to allow the oxygen in oxygen rich gas collecting chamber to be output.Aspirating hole 33 connects with air extractor 41 It is logical.Controlled atmosphere film 36 first passes through double faced adhesive tape 34 and is installed on frame, is then sealed by fluid sealant 35.
In certain embodiments, the aforesaid plurality of gas channel that support frame 32 is internally formed can for one or more with The cavity of the connection of aspirating hole 33.In certain embodiments, the aforesaid plurality of gas channel that support frame 32 is internally formed can have There is network.
Specifically, support frame 32 may include frame, the structure such as floor and/or flat board for being arranged in frame, floor it Between, gas channel can be formed between floor and flat board etc., can open up fluted on the surface of floor, on the surface of flat board, with Form gas channel.Floor and/or flat board can improve structural strength of controlled atmosphere membrane module 30 etc..
For example support frame 32 has the first surface and second surface being parallel to each other, and support frame 32 is formed with and exists respectively Extend on first surface, extend on a second surface, and through support frame 32 connecting first surface and second surface Multiple gas channels.That is, the plurality of gas channel include extend on the first surface multiple first gas channels, Multiple second gas channels for extending on second surface and through support frame 32 to connect first surface and second surface Multiple 3rd gas channels.Or it is also understood that support frame 32 is formed with multiple first for extending on the first surface Gas channel and multiple second gas channels for extending on a second surface, and between the first gas channel and the second gas channel Connected by the 3rd gas channel.All of gas channel is collectively forming oxygen rich gas collecting chamber.
One or more controlled atmosphere film formed two planar shaped controlled atmosphere film layers, be laid on respectively support frame first surface and On second surface, so as to constitute plate shaped controlled atmosphere membrane module 30.
Support frame 32 is formed with the aspirating hole 33 with said flow channel connection, and the connection oxygen rich gas of aspirating hole 33 is collected Chamber, for connecting the entrance point of aspiration pump 40, so as to allow the oxygen rich gas in oxygen rich gas collecting chamber to be output.In aspiration pump During 40 operation, negative pressure state is in oxygen rich gas collecting chamber 38, the oxygen in the outside air of controlled atmosphere membrane module 30 can continue Controlled atmosphere film 36 is crossed to enter in oxygen rich gas collecting chamber.Support frame 32 on the whole can generally rectangular shaped framework.
In certain embodiments, support frame 32 may include:Frame, multiple first floors and multiple second floors.Before State multiple first floors inside frame it is longitudinally spaced setting and extend transversely, and aforesaid plurality of first floor side table Face forms first surface.Multiple second floors aforesaid plurality of first floor the laterally spaced setting of another side surface and along vertical Second surface is formed to the side surface away from the first floor of extension, and aforesaid plurality of second floor.That is, foregoing many Individual second floor is arranged on a side surface of aforesaid plurality of first floor.Aforesaid plurality of first floor and aforesaid plurality of second rib The opposite surface of plate forms first surface and second surface respectively;That is, aforesaid plurality of first floor and aforesaid plurality of second floor Opposite surface forms first surface;Aforesaid plurality of second floor and the opposite surface of aforesaid plurality of first floor form the second table Face.Between between the second floor between the first adjacent floor, adjacent and between the first adjacent floor and the second floor Gap forms aforesaid plurality of gas channel.Wherein, the gap between two the first adjacent floors forms and extends on the first surface The first gas channel, gap between two the second adjacent floors forms the second air-flow for extending on a second surface and leads to Road, the gap between the first adjacent floor and the second floor forms and connects first surface and second surface through support frame 32 The 3rd gas channel.That is, the chi structure for being formed by all first floors and all second floors forms aforesaid plurality of air-flow Passage.
Above-mentioned support frame 32 inside its frame by setting multiple first ribs that are longitudinally spaced and extending transversely Plate and aforesaid plurality of first floor a side surface is laterally spaced and multiple second floors for extending longitudinally so that a side Face ensure that the continuity of gas channel, on the other hand greatly reduce the volume of support frame, and significantly enhance branch The intensity of support frame frame 32.Additionally, the said structure of support frame 32 ensure that controlled atmosphere film 36 is obtained in that enough supports, even if Preferable flatness can be also remained in the case where oxygen rich gas collecting chamber internal negative pressure is larger, it is ensured that controlled atmosphere film group The service life of part 30.
Aspirating hole 33 can be arranged at the horizontal side of frame in the longitudinal middle part of frame.So set equivalent to from controlled atmosphere film The middle part pumping of component 30, is conducive to controlled atmosphere film 36 uniformly ventilative.Aspirating hole 33 can be stepped hole shoulder hole in other words, with it When being connected with aspiration pump 40 by flexible pipe, it is ensured that the air-tightness of connecting portion.
Additionally, the said structure of support frame 32 ensure that controlled atmosphere film 36 is obtained in that enough supports, even if oxygen-enriched Preferable flatness can be also remained in the case that gas collection chamber internal negative pressure is larger, it is ensured that controlled atmosphere membrane module 30 Service life.
The inlet end of aspiration pump 40 connects aspirating hole 33 respectively via exhaust pipe 51, multiple first closed group to be communicated to The oxygen rich gas collecting chamber of the controlled atmosphere membrane module 30 in part 71, and be configured to outwards extract the gas of oxygen rich gas collecting chamber out, So that the oxygen content in fresh-keeping subspace 271 is constantly reduced, it is beneficial to so as to form rich nitrogen oxygen deprivation in fresh-keeping subspace 271 The atmosphere of food fresh-keeping.Aspiration pump 40 can be arranged in compressor room 24, can make full use of the space of compressor room 24, no Additionally take elsewhere, therefore the additional volumes of refrigerating device will not be increased, the structure of refrigerating device can be made tight Gather.
Fig. 7 is the schematic block diagram of refrigerating device according to an embodiment of the invention.The refrigerating device also sets It is equipped with:Controller 110, human-computer interaction device 120, open-closed detector 130.
Controller 110 is used to be controlled the adjustment of the gas of refrigerating device, according to being protected in fresh-keeping subspace 271 The species of thing of suffering from indigestion carries out gas adjustment, and corresponding control aspiration pump 40 (can also include that the grade of blower fan 60 is used to bypass air through gas Adjust the part of film).Controller 110 is connected with the control end of aspiration pump 40, and its control process can be:Obtain the food of outside input Thing stores information, and the kind of information that food is preserved in fresh-keeping subspace 271 is comprised at least in food preservation information.Refrigerating Device can be previously provided with various fresh-keeping operational modes, and (for example fresh-keeping of vegetables, fruit freshness preserving, meat preservation, fish are fresh-keeping Deng).Controller 110 can determine corresponding fresh-keeping operational mode according to the kind of information of food, and every kind of fresh-keeping operational mode is pre- A kind of start and stop cycle of aspiration pump 40 is first provided with, the start and stop cycle ensures that the atmosphere in fresh-keeping subspace 271 meets fresh-keeping The storage condition of the food preserved in subspace 271;Aspiration pump 40 is driven according to the start and stop periodic duty determined.
By the research to food fresh-keeping characteristic, inventor has found that the oxidation of oxygen and food, respiration are close Cut is closed, and traditional viewpoint thinks that oxygen concentration is lower, is more conducive to the preservation of food, but by inventor by big measurement The summary of examination draws, traditional viewpoint is simultaneously incorrect, and every kind of food has most preferably
Preservation atmosphere.Table 1 shows the oxygen level of the optimal storage ambient of a part of vegetables and fruits:
Table 1
Vegetables and fruits species Oxygen concentration (unit %)
Spinach 1
Cabbage 2.5-5
Wild cabbage 2.5-5
Cauliflower 2.5
Asparagus 2.5-5
Lettuce 1
Apple 3
Pears 1
Tomato 3
Green soya bean 2
It can be seen from Table 1 that, different food has different preferred Conservation environments, therefore in the present embodiment, can be with Preferred Conservation environment previously according to food is tested, and fresh-keeping operational mode is set, by gas in fresh-keeping subspace 271 Leak case, the rule of the speed of evacuation of aspiration pump 40 summarizes so that aspiration pump 40 is opened according to fresh-keeping operational mode When the cycle of stopping is operated, it is ensured that atmosphere can be stably maintained at required oxygen all the time in fresh-keeping subspace 271 In gas concentration range.
Human-computer interaction device 120 can be configured to obtain the food preservation information of user input, and human-computer interaction device 120 can Button, touch-screen, knob etc. are thought, so as to determine food preservation information by the selection operation of user.In a kind of optional reality Apply in example, human-computer interaction device 120 can be the multiple buttons 121 being arranged in the cavity wall of fresh-keeping subspace 271, each button 121 correspond to a group food, for example, be provided with vegetables selection key, fruit selection key etc..The quantity of button 121 can basis Configured using needs.In some alternative embodiments, these buttons 121 can also configure corresponding pattern and be identified, So that user is operated.
Controller 110 may be configured to detect the Action Events of above-mentioned multiple buttons 121;Determined to use according to Action Events Selection operation of the family to multiple buttons 121;The corresponding food species of selected button 121 are determined, to obtain food preservation letter Breath.After selecting a certain button 121, controller 110 is assured that out corresponding fresh-keeping operational mode to such as user.
Because fresh-keeping subspace 271 after opening every time, original atmosphere can all be destroyed, therefore in fresh-keeping subspace 271 open again be then shut off after, it is necessary to delayed startup aspiration pump 40.Oxygen concentration in fresh-keeping subspace 271 reaches and meets storage After the requirement of Tibetan condition, controller 110 is evacuated in control aspiration pump 40 again according to the fresh-keeping operational mode for determining, makes guarantor The atmosphere of fresh subspace 271 is stable under optimal preservation condition needed for food.
In the refrigerating device of the present embodiment, open-closed detector 130 can be configured to detect that fresh-keeping subspace 271 is opened Whether the event closed, open-closed detector 130 can be unlocked or be closed using the fresh-keeping subspace 271 of the detection such as hall device, During using drawer type storing compartment as fresh-keeping subspace 271, open-closed detector 130 can be respectively arranged at drawer body 23 On end plate and drawer cylinder 22.
Controller 110 drives aspiration pump 40 to remain turned-off after it is determined that fresh-keeping subspace 271 is opened;It is determined that fresh-keeping After subspace 271 is closed, the continuous service initial operating time of aspiration pump 40 is driven, fresh-keeping operational mode is also previously provided with just Beginning run time.The initial operating time can ensure that aspiration pump 40 is the atmosphere that fresh-keeping subspace 271 forms setting.
The refrigerating device of the present embodiment is also provided with suggestion device.The suggestion device can be it is determined that fresh-keeping son Space 271 sends the cue for updating the food preservation information after being closed, to remind user to set food preservation information. In some alternative embodiments, it is possible to use the button 121 with backlight after for example drawer is opened, is pressed as suggestion device The backlight open of key 121, points out user to re-start selection, to determine the species of food.
Embodiments of the invention additionally provide a kind of fresh-keeping control method of refrigerating device, and the fresh-keeping control method can Fresh-keeping control is carried out for the refrigerating device to above-described embodiment, for example, is performed by controller noted above 110, complete gas The holding function of body atmosphere.
Fig. 8 is the schematic diagram of the fresh-keeping control method of refrigerating device according to an embodiment of the invention.The refrigeration The fresh-keeping control method of refrigerating plant may include in general manner:
Step S702, obtains the food preservation information of outside input;
Step S704, the kind of information according to food determines corresponding fresh-keeping operational mode;
Step S706, drives aspiration pump 40 according to the start and stop periodic duty determined.
The kind of information that food is preserved in fresh-keeping subspace 271 is comprised at least in step S702 in food preservation information. Refrigerating device can be previously provided with the corresponding fresh-keeping operational mode of various foods, and every kind of fresh-keeping operational mode pre-sets There is a kind of start and stop cycle of aspiration pump 40, the start and stop cycle ensures that the atmosphere in fresh-keeping subspace 271 meets fresh-keeping subspace The storage condition of the food preserved in 271.
In the case where refrigerating device also includes human-computer interaction device 120, step S702 can utilize man-machine interaction Device 120 receives the food preservation information of user input.Include multiple buttons, each button correspondence in human-computer interaction device 120 In the case of a group food, the process can be the Action Events of the multiple buttons 121 of detection;Determine user according to Action Events To the selection operation of multiple buttons 121;The corresponding food species of selected button 121 are determined, to obtain food preservation information.
Additionally, fresh-keeping operational mode can also be previously provided with the initial operating time of aspiration pump 40, the present embodiment it is cold The fresh-keeping control method for hiding refrigerating plant can also include detecting whether initialization event occur, after there is initialization event, The continuous service initial operating time of aspiration pump 40 is driven, so that fresh-keeping subspace 271 forms atmosphere.
Above-mentioned initialization event includes causing the various events of the gas leakage of fresh-keeping subspace 271, for example, refrigerate cold The event that the upper electric event or fresh-keeping subspace 271 for freezing device are opened and closed.Can also be detected in the implementation procedure of step S706 The event that fresh-keeping subspace 271 is opened and closed;After it is determined that fresh-keeping subspace 271 is opened, aspiration pump 40 is driven to remain turned-off; After determining that fresh-keeping subspace 271 is closed, the continuous service initial operating time of aspiration pump 40 is driven.
Can be sent out updating the cue of food preservation information after it is determined that fresh-keeping subspace 271 is closed;And Reacquire the food preservation information of outside input.
The detailed process to the fresh-keeping control method of the refrigerating device of the present embodiment is introduced below, and this sentences cold Hide refrigerating plant and be provided with (the above-mentioned guarantors such as the fresh-keeping pattern of fruit, the fresh-keeping pattern of leaf vegetables, melon fresh-keeping pattern, meat preservation pattern Fresh pattern can be configured according to the storage requirement of user), every kind of fresh-keeping pattern is defined and makes fresh-keeping son after initialization The oxygen concentration in space 271 drops to the initial fortune that various kinds of foods most preferably preserves the continuous service of process aspiration pump 40 of concentration range The row time, and the positive start and stop cycle is held according to the aspiration pump 40 that the gas leakage situation of fresh-keeping subspace 271 is set, the start and stop cycle Can ensure that the oxygen concentration of fresh-keeping subspace 271 is not in above-mentioned optimal preservation concentration range all the time.Fresh-keeping son is empty in addition Between 271 can be drawer type storage space.On drawer or indoor four buttons 121 of setting, four buttons can print respectively Fruit, leaf vegetables, melon, meat sign are brushed with, four group foods are corresponded to respectively.
After drawer is opened and is put into certain food, the closure event for occurring in that drawer is detected, button 121 is lit Prompting user selects fresh-keeping pattern, if user has pressed certain button 121, refrigerating device enters 121 pairs, the button The fresh-keeping pattern answered, if user does not select, refrigerating device can be still according to fresh-keeping mode operation before.
After drawer closure and door body are also closed, the delay predetermined time of aspiration pump 40 is opened, and continuous service is currently fresh-keeping The initial operating time that pattern specifies, makes the oxygen concentration of fresh-keeping subspace 271 drop to optimal preservation in concentration range.Pumping Pump 40 closes the scheduled time, is then turned on, and closing after certain hour is opened, time of closing and time for opening are by working as Preceding fresh-keeping pattern determines.It is opened if there is drawer or situation that refrigerator is re-powered then repeats said process.
Fig. 9 is that a kind of of the fresh-keeping control method of refrigerating device according to an embodiment of the invention performs flow. After refrigerating device is put into food, user is selected according to food variety by the button 121 or other modes of interactive device 120 Food type, fresh-keeping pattern is determined according to food type, and atmosphere of every kind of fresh-keeping pattern according to needed for has been pre-configured with to be taken out The run time of air pump 40, specify that startup time and shut-in time.
In example shown in Fig. 9, according to the different classes of of food, it is divided three classes:Water fruits and vegetables, fresh meat (are mainly deposited Birds meat and the flesh of fish are put, is not suitable for depositing red meat).Wherein the optimal oxygen concentration of fruit is m%, the optimal oxygen concentration of vegetables It is n%, the optimal oxygen concentration of fresh meat class is k%, in general m, n value are smaller, it is necessary to the working time of aspiration pump 40 is more long, k Value is larger, it is necessary to the working time of aspiration pump 40 is shorter, according to advance experiment test, can obtain the sealed drawer and reach water The time of fruits and vegetables, fresh meat this three group foods optimum oxygen concentration is respectively a minutes, b minutes, c minutes.Simultaneously according to sealing The leakage speed of degree and gas, measures x respectively, it is necessary to aspiration pump 40 restarts after y, z minute, makes the cycle of aspiration pump 40 Property operation.Three kinds of control methods of food qualification category are illustrate only in Fig. 8, equally, it is also possible to various foods it is fresh-keeping require into Row test, obtains optimal storage condition and the cycle of operation of corresponding aspiration pump 40, after user is put into food, can be in operation Food title is input on interface, refrigerating device Auto-matching determines the cycle of operation of aspiration pump 40, so as to meet the group food Storage request.
Start and stop of the start and stop of above-mentioned aspiration pump 40 typically with blower fan 60 are synchronous, the work week of its cycle of operation namely controlled atmosphere film Phase.
The refrigerating device and its fresh-keeping control method of the present embodiment, creatively propose using controlled atmosphere film (for example Oxygen permeable membrane) the particular kind of gas (such as oxygen) in air in closed fresh-keeping subspace 271 discharged the space by component, So as to obtain rich nitrogen oxygen deprivation in the space or other are beneficial to the atmosphere of food fresh-keeping.The gas of such as rich nitrogen oxygen deprivation Atmosphere reduces the intensity of fruit/vegetable aerobic breathing by reducing the content of oxygen in fruits and vegetables shelf space, while ensureing exhaling for basis Suction is acted on, and prevents fruits and vegetables from carrying out anaerobic respiration, so as to reach the purpose of fruits and vegetables long-period freshness preserving.Also, the present invention is always according to being protected Suffer from indigestion the species of thing, under conditions of atmosphere is maintained at most beneficial for this kind of food, so as to farthest meet food The need for thing is stored.
Further, refrigerating device of the invention and its fresh-keeping control method, using physical button or other forms Man Machine Interface obtain food kind of information, it is easy to operate, it is user-friendly.
So far, although those skilled in the art will appreciate that detailed herein have shown and described multiple of the invention and show Example property embodiment, but, without departing from the spirit and scope of the present invention, still can be direct according to present disclosure It is determined that or deriving many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognizes It is set to and covers all these other variations or modifications.

Claims (10)

1. a kind of fresh-keeping control method of refrigerating device, the refrigerating device includes defining the case of storage space Body, controlled atmosphere membrane module, aspiration pump, wherein, closed fresh-keeping subspace, and the aspiration pump are formed with the storage space The gas for being configured to make the fresh-keeping subspace of the storage space permeates by the controlled atmosphere membrane module, with the storage space Fresh-keeping subspace in form atmosphere beneficial to food fresh-keeping, and the fresh-keeping control method includes:
The food preservation information of outside input is obtained, is comprised at least in the food preservation information and is protected in the fresh-keeping subspace Suffer from indigestion the kind of information of thing;
Kind of information according to the food determines corresponding fresh-keeping operational mode, and the refrigerating device is previously provided with many The corresponding fresh-keeping operational mode of food is planted, every kind of fresh-keeping operational mode is previously provided with a kind of start and stop week of the aspiration pump Phase, the start and stop cycle ensures that the atmosphere in the fresh-keeping subspace meets the food preserved in the fresh-keeping subspace Storage condition;
The aspiration pump is driven according to the start and stop periodic duty determined.
2. method according to claim 1, wherein, the refrigerating device also includes:Human-computer interaction device, and obtain The step of food preservation information for taking outside input, also includes:
Receive the food preservation information that user is input into by the human-computer interaction device.
3. method according to claim 2, wherein, the human-computer interaction device includes multiple buttons, each described button Corresponding to a group food, and the step of receive the food preservation information that user is input into by the human-computer interaction device also Including:
Detect the Action Events of the multiple button;
Determine selection operation of the user to the multiple button according to the Action Events;
The corresponding food species of selected button are determined, to obtain the food preservation information.
4. method according to claim 1, wherein, the fresh-keeping operational mode be also previously provided with the aspiration pump just Beginning run time, and the fresh-keeping control method also includes:
Detect whether initialization event occur;
After there is the initialization event, initial operating time described in the aspiration pump continuous service is driven, so that the guarantor Fresh subspace forms the atmosphere.
5. method according to claim 4, wherein, the initialization event includes the thing that the fresh-keeping subspace is opened and closed Part, and also include during the aspiration pump is driven according to the start and stop periodic duty determined:
Detect the event that the fresh-keeping subspace is opened and closed;
After it is determined that the fresh-keeping subspace is opened, the aspiration pump is driven to remain turned-off;
After it is determined that the fresh-keeping subspace is closed, initial operating time described in the aspiration pump continuous service is driven.
6. method according to claim 5, wherein, also include after it is determined that the fresh-keeping subspace is closed:
Send the cue for updating the food preservation information;And reacquire the food preservation information of outside input.
7. a kind of refrigerating device, including:
Casing, is limited by storage space in it, and closed fresh-keeping subspace is formed with the storage space;
Controlled atmosphere membrane module, its surrounding space is connected with the fresh-keeping subspace, and is provided with controlled atmosphere film, in the controlled atmosphere membrane module It is formed with oxygen rich gas collecting chamber;
Aspiration pump, its entrance point is communicated to the oxygen rich gas collecting chamber, and is configured to the gas of the oxygen rich gas collecting chamber Body is outwards extracted out, so that at least part of oxygen in the fresh-keeping subspace is received by the controlled atmosphere film into the oxygen rich gas Collection chamber, so as to reduce the oxygen concentration in the fresh-keeping subspace;
Controller, the control end with the aspiration pump is connected, and is configured to:The food preservation information of outside input is obtained, it is described The kind of information that food is preserved in the fresh-keeping subspace is comprised at least in food preservation information;According to the species of the food Information determines corresponding fresh-keeping operational mode, and the refrigerating device is previously provided with various fresh-keeping operational modes, Mei Zhongsuo A kind of start and stop cycle that fresh-keeping operational mode is previously provided with the aspiration pump is stated, the start and stop cycle ensures that the fresh-keeping son is empty Interior atmosphere meets the storage condition of the food preserved in the fresh-keeping subspace;The aspiration pump is driven according to true The start and stop periodic duty made.
8. refrigerating device according to claim 7, also includes:
Human-computer interaction device, is configured to obtain the food preservation information of user input;And
The controller, is also connected with the human-computer interaction device, and is configured to receive the institute that the human-computer interaction device is obtained State food preservation information.
9. refrigerating device according to claim 8, wherein
The human-computer interaction device includes multiple buttons, is arranged in the cavity wall of the fresh-keeping subspace, each described button pair Ying Yuyi group foods, and
The controller, is configured to detect the Action Events of the multiple button;Determine the use according to the Action Events Selection operation of the family to the multiple button;The corresponding food species of selected button are determined, to obtain the food preservation Information.
10. refrigerating device according to claim 7, also includes:
Open-closed detector, is configured to the event that the detection fresh-keeping subspace is opened and closed;And
The controller, is configured to after it is determined that the fresh-keeping subspace is opened, and drives the aspiration pump to remain turned-off; After determining that the fresh-keeping subspace is closed, the aspiration pump continuous service initial operating time, the fresh-keeping operation mould are driven Formula is also previously provided with the initial operating time.
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