CN106642912B - Refrigerating device and its fresh-keeping control method - Google Patents
Refrigerating device and its fresh-keeping control method Download PDFInfo
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- CN106642912B CN106642912B CN201611097037.6A CN201611097037A CN106642912B CN 106642912 B CN106642912 B CN 106642912B CN 201611097037 A CN201611097037 A CN 201611097037A CN 106642912 B CN106642912 B CN 106642912B
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- fresh
- oxygen concentration
- keeping
- food
- subspace
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Classifications
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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
- F25D17/042—Air treating means within refrigerated spaces
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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
- 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
- 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
- F25D2500/00—Problems to be solved
- F25D2500/06—Stock management
Abstract
The present invention provides a kind of refrigerating device and its fresh-keeping control methods, refrigerating device includes the cabinet for defining storage space, controlled atmosphere membrane module, aspiration pump, and oxygen concentration sensor, wherein, there is closed fresh-keeping subspace in storage space, oxygen concentration sensor is set in fresh-keeping subspace, and aspiration pump is configured to permeate the gas of the fresh-keeping subspace of storage space by controlled atmosphere membrane module, to be conducive to the atmosphere of food fresh-keeping in the fresh-keeping subspace of storage space, and fresh-keeping control method includes: to obtain the information of externally input food；Corresponding oxygen concentration range is determined according to the information of food；It obtains the oxygen concentration of the fresh-keeping subspace of oxygen concentration sensor measurement and accordingly controls aspiration pump, so that the oxygen concentration of fresh-keeping subspace is maintained in oxygen concentration range.To meet the storage requirements of different type food.
Description
Technical field
The present invention relates to storing technical fields, more particularly to a kind of refrigerating device and its fresh-keeping control method.
Background technique
Food is the energy source of people's existence, most important for people.For food storage, main two
Aspect is heat preservation and fresh-keeping, it is however generally that, temperature has the effect of the microbial activities on food, the enzyme in food obvious
Influence, the reduction of temperature can make food delay to go bad, and refrigerator, which is to maintain a kind of refrigeration equipment of constant low temperature and one kind, to be made
Food or other articles keep constant the product for civilian use of low temperature cold conditions.
With the raising of quality of the life, consumer is also higher and higher to the fresh-keeping requirement of storage food, especially to food
The requirement of color, the mouthfeel of object etc. is also higher and higher.Therefore, the food of storage should also be as guaranteeing during storage, the color of food
Pool, mouthfeel, freshness etc. remain unchanged as far as possible.Therefore user also proposed higher want to the preservation technology of refrigerator
It asks.
The preservation technology of refrigerator mainly uses vacuum freshness retaining technology in the prior art, and vacuum freshness retaining food, which eliminates packaging, to be held
Partial air (oxygen) in device, destroys the condition of bacterium and microbial growth, to be effectively prevented food apoilage.
At present through frequently with vacuum freshness retaining mode be that vacuum bag is fresh-keeping and vacuum storing compartment is fresh-keeping.
Fresh-keeping using vacuum bag, consumer stores food every time and requires to carry out vacuuming action, troublesome in poeration, cannot get
Consumer's likes.It is fresh-keeping using vacuum storing compartment, since cabinet etc. is rigid structure, vacuum state is kept, it is true to taking out
The requirement of empty set system is very high, very high to the sealing performance requirement of refrigerator, and one article of every pick-and-place, 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 cooling capacity is relatively difficult, is particularly disadvantageous for food
Cooling.Further, since being vacuum environment, user opens the needs such as refrigerator doors every time takes very big strength, causes user using not
Just.Although some refrigerators can by pumped vacuum systems to ventilation indoor between vacuum storing, will cause in this way user's waiting compared with
For a long time, poor in timeliness.Vacuum time is longer, and it is serious to will also result in the deformations such as refrigerator body, i.e., it is existing have vacuumize knot
The refrigerator of structure cannot complete vacuum freshness retaining well, need the intensity of cabinet etc. very big, realize that requirement is very high, cost is very high.
Summary of the invention
It is an object of the present invention to provide a kind of refrigerating device that cost is relatively low, of good preservation effect and its fresh-keeping
Control method.
A further object of the present invention is to refrigerating devices to be made and its fresh-keeping control method to 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
Cabinet, controlled atmosphere membrane module, aspiration pump and the oxygen concentration sensor of storage space, wherein have in storage space closed
Fresh-keeping subspace, oxygen concentration sensor are set in fresh-keeping subspace, and aspiration pump is configured to make the fresh-keeping of storage space
The gas of subspace is permeated by controlled atmosphere membrane module, to be conducive to the gas atmosphere of food fresh-keeping in the fresh-keeping subspace of storage space
It encloses, and fresh-keeping control method includes: to obtain externally input food preservation information, is included at least in food preservation information fresh-keeping
The information of saved food in subspace；Corresponding fresh-keeping service condition, fresh-keeping fortune are determined according to the information of food
Row condition includes at least the corresponding oxygen concentration range of information of food；Obtain the fresh-keeping son of oxygen concentration sensor measurement
The oxygen concentration in space simultaneously accordingly controls aspiration pump, so that the oxygen concentration of fresh-keeping subspace is maintained in oxygen concentration range.
Optionally, refrigerating device further include: human-computer interaction device, and obtain externally input food preservation information
The step of further include: receive the food preservation information that user is inputted by human-computer interaction device.
Optionally, human-computer interaction device includes multiple keys, and each key corresponds to a group food, and it is logical to receive user
The step of crossing the food preservation information of human-computer interaction device input further include: detect the action event of multiple keys；According to operation
Event determines user to the selection operation of multiple keys；The corresponding food species of key selected are determined, to obtain food storage
Hide information.
Optionally, fresh-keeping service condition includes the oxygen concentration upper limit and oxygen concentration lower limit, and accordingly controls aspiration pump
The step of include: fresh-keeping subspace oxygen concentration be equal to or less than oxygen concentration lower limit when, close aspiration pump；In fresh-keeping son
When the oxygen concentration in space is greater than or equal to the oxygen concentration upper limit, start aspiration pump.
Optionally, during accordingly control aspiration pump further include: detect the event that fresh-keeping subspace is opened and closed；True
After fixed fresh-keeping subspace is opened, aspiration pump and oxygen concentration sensor is driven to remain turned-off；Determining that fresh-keeping subspace is closed
After closing, oxygen concentration sensor is made to resume work, and drives aspiration pump continuous service until the oxygen in fresh-keeping subspace is dense low
In or equal to oxygen concentration lower limit.
Optionally, after determining that fresh-keeping subspace is closed further include: issue the standby signal for updating food preservation information；
And reacquire externally input food preservation information.
According to another aspect of the present invention, a kind of refrigerating device is additionally provided comprising: cabinet, it is interior to limit
By storage space, there is closed fresh-keeping subspace in storage space；Controlled atmosphere membrane module, surrounding space and fresh-keeping subspace connect
It is logical, and it is provided with controlled atmosphere film, oxygen rich gas collecting chamber is formed in controlled atmosphere membrane module；Aspiration pump, input end are connected to oxygen-enriched
Gas collection chamber, and be configured to outward extract the gas of oxygen rich gas collecting chamber out, so that in fresh-keeping subspace at least partly
Oxygen enters oxygen rich gas collecting chamber by controlled atmosphere film, to reduce the oxygen concentration in fresh-keeping subspace；Controller, with pumping
The control terminal of pump is connected, and is configured to: obtaining externally input food preservation information, includes at least in food preservation information fresh-keeping
The information of the food saved in subspace；Corresponding fresh-keeping service condition is determined according to the information of food, it is fresh-keeping
Service condition includes at least the corresponding oxygen concentration range of food species information；The oxygen for obtaining oxygen concentration sensor measurement is dense
It spends and accordingly controls aspiration pump, so that the oxygen concentration of fresh-keeping subspace is maintained in oxygen concentration range.
Optionally, above-mentioned refrigerating device further include: human-computer interaction device is configured to obtain the food storage of user's input
Hide information；And controller is also connected with human-computer interaction device, and is configured to receive the food preservation that human-computer interaction device obtains
Information.
Optionally, human-computer interaction device includes multiple keys, is set in the cavity wall of fresh-keeping subspace, and each key is corresponding
In a group food, and controller, it is configured to detect the action event of multiple keys；Determine user to more according to action event
The selection operation of a key；The corresponding food species of key selected are determined, to obtain food preservation information.
Optionally, above-mentioned refrigerating device further include: open-closed detector is configured to detect what fresh-keeping subspace was opened and closed
Event；And fresh-keeping service condition includes the oxygen concentration upper limit and oxygen concentration lower limit；Controller is configured to empty in fresh-keeping son
Between oxygen concentration be equal to or less than oxygen concentration lower limit when, close aspiration pump；Oxygen concentration in fresh-keeping subspace be higher than or
When higher than the oxygen concentration upper limit, start aspiration pump；And after determining that fresh-keeping subspace is opened, drive aspiration pump and oxygen dense
Degree sensor remains turned-off；After determining that fresh-keeping subspace is closed, oxygen concentration sensor is made to resume work, and drives pumping
Continuous service is pumped until the oxygen concentration in fresh-keeping subspace is less than or equal to oxygen concentration lower limit.
Refrigerating device of the invention and its fresh-keeping control method creatively propose (such as rich using controlled atmosphere film
Oxygen film) space is discharged in the oxygen in air in closed fresh-keeping subspace by component, so that it is poor to obtain rich nitrogen in the space
Oxygen or other in favor of food fresh-keeping atmosphere.Such as the atmosphere of rich nitrogen oxygen deprivation can be saved by reducing fruits and vegetables
The content of oxygen in space, reduces the intensity of fruit/vegetable aerobic breathing, while guaranteeing the respiration on basis, prevents fruits and vegetables from carrying out nothing
Oxygen breathing, to achieve the purpose that fruits and vegetables long-period freshness preserving.Also, the present invention is also according to the type of saved food, by gas atmosphere
It encloses and is maintained at most beneficial under conditions of this kind of food, to meet the needs of food storage to the greatest extent.
Further, refrigerating device of the invention and its fresh-keeping control method, using physical button or other forms
Man-machine interactive interface obtain food information, it is easy to operate, it is user-friendly.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the schematic illustration 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 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 a kind of execution process of the fresh-keeping control method of refrigerating device according to an embodiment of the invention.
Specific embodiment
The refrigerating device of the embodiment of the present invention is formed in fresh-keeping subspace using controlled atmosphere film to be met article storing and wants
Atmosphere is sought, such as the atmosphere for taking oxygen permeable membrane to form oxygen-enriched poor nitrogen.Wherein the working principle of oxygen permeable membrane is using empty
Infiltration rate when each component penetrates oxygen permeable membrane in gas is different, under pressure difference driving, passes through oxygen preferentially oxygen-enriched
Film, in the prior art, oxygen permeable membrane are generally used for preparing oxygen, to apply in fields such as medical treatment, fermentation, burnings.In this hair
In bright embodiment, then oxygen is discharged using oxygen permeable membrane in refrigerating device, so that the oxygen concentration of fresh-keeping subspace declines, it is real
Now it is conducive to the atmosphere that food saves.
In the present embodiment, controlled atmosphere technology stores the atmosphere (gas componant of enclosure space locating for object by adjusting
Ratio or gas pressure) mode come come the technology that extends shelf life of food products, basic principle are as follows: in certain enclosure space
In (fresh-keeping subspace), the atmosphere different from normal air constituent is obtained by controlled atmosphere film, to inhibit to cause storage object (logical
Often it is food) activity of putrid and deteriorated physiological and biochemical procedure and microorganism.Particularly, in the present embodiment, the gas discussed
Adjust it is fresh-keeping will be specifically in the controlled atmosphere technology that gas component ratio is adjusted.
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,
It generallys use and is filled with nitrogen-rich gas to enclosure space to reduce the mode of oxygen content and obtain the fresh-keeping gas atmosphere of rich nitrogen oxygen deprivation
It encloses.Those skilled in the art will be appreciated that nitrogen-rich gas refers to that nitrogen content is more than the gas of nitrogen content in above-mentioned normal air
Body, such as nitrogen content therein can be 95%~99%, even higher；And the fresh-keeping atmosphere of rich nitrogen oxygen deprivation refers to nitrogen
Content is lower than the atmosphere of oxygen content in above-mentioned normal air more than nitrogen content, oxygen content in above-mentioned normal air.
Although German biologist's hair can be traced by 1821 in history in the prior art there is also controlled atmosphere technology
Existing fruit and vegetable can be reduced metabolism in low oxygen level and start.But it up to this point, is protected due to being conventionally used to controlled atmosphere
The fresh equipment of making nitrogen is bulky, with high costs, and the technology is caused substantially also to be limited to using the profession in various large sizes
On storage (generally at least 30 tons or more 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, to be applicable in
In the small-sized refrigerating equipment such as refrigerator, introduction about the construction is as follows:
Fig. 1 is the schematic illustration 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 a embodiment, Fig. 3 are the schematic structures at another visual angle of structure shown in Fig. 2
Figure.It may include that cabinet 20, door body (are not shown in figure as shown, the embodiment of the invention provides a kind of refrigerating device
Out), controlled atmosphere membrane module 30, aspiration pump 40 and refrigeration system (not shown).It is defined in the cabinet 20 of refrigerating device
Storage space, the storage space can be configured to refrigerating chamber 27, freezing chamber 25, temperature-changing chamber 26 etc. according to cryogenic temperature.It refrigerates cold
Freezing device can be refrigerator at least with refrigerating chamber 27 and freezing chamber 25.Refrigeration system can be common compression refrigerating system or half
Conductor refrigeration system etc. provides cooling capacity to storage room for example, by direct-cooled and/or air-cooled form, so that storage room has
Desired preservation temperature.In some 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 freezing chamber 25 can be -22~-14 DEG C, or can be -20~16 DEG C.Freezing chamber 25 is set to refrigerating chamber 27
Lower section, temperature-changing chamber 26 is set between freezing chamber 25 and refrigerating chamber 27.Temperature range in freezing chamber 25 is generally 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 in storage space, which can be with
It is set 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
The lower part storage space of refrigerating chamber 27 is set.
Door body may be pivotally mounted to cabinet 20, be configured to open or close the storage space of the restriction of cabinet 20.In order to protect
The leakproofness of fresh-keeping subspace 271 is demonstrate,proved, inner side of door is also provided with wicket, to open or close fresh-keeping subspace 271, from
And form layer door structure.In some alternative embodiments, which 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 storage room
Space 271.
Drawer cylinder 22 has forward opening, and is set in storage space (such as lower part of refrigerating chamber 27), drawer sheet
Body 23 is slidably mounted on drawer cylinder 22, and the front end of drawer body 23 is provided with end plate, cooperates with drawer cylinder 22, can be with
Close the opening of fresh-keeping subspace 271.A kind of specific mode is that drawer body 23 can from the forward opening of drawer cylinder 22
Operatively extracts out and be pushed home into outward.End plate makes the closure of openings of fresh-keeping subspace 271 by sealing structure.
In some embodiments of the invention, drawer cylinder 22 can be sealed with being formed between the end plate of drawer body 23
Portion, the sealing can appropriate gas leakage realization air pressure balances.It can be by drawer cylinder 22 in some other embodiments
The modes such as millimetre-sized micropore or check valve are set and guarantee air pressure balance.
Refrigeration system can be the cooling cycle system being made of compressor, condenser, throttling set and evaporator etc..Compression
Machine is installed in compressor room 24.Evaporator is configured to directly or indirectly provide cooling capacity into storage space.For example, when this is cold
When hiding refrigerating plant is household compression direct cooling refrigerator, evaporator may be disposed on the outside of the rear surface of liner 21 or inside.When this
When refrigerating device is household compression wind cooling refrigerator, also there is evaporator room in cabinet 20, evaporator room passes through wind path system
System is connected to storage space, and evaporator is arranged in evaporator room, and exit is provided with blower, to be recycled to storage space
Refrigeration.Since such refrigeration system itself is that those skilled in the art are known and be easily achieved, in order not to cover and obscure this
The inventive point of application does not hereinafter repeat refrigeration system itself more.
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
When the pressure of environment, the gas (most of oxygen) of ambient enviroment enters controlled atmosphere oxygen rich gas collecting chamber through controlled atmosphere film.Specifically
The other side on ground, controlled atmosphere film can directly be contacted with fresh-keeping subspace 271, or with the circulatory flow that is connected to fresh-keeping subspace 271
(or cyclic space) contact, so as to make fresh-keeping subspace in pressure of the pressure of oxygen rich gas collecting chamber less than subspace
Controlled atmosphere gas in 271 in air enters oxygen rich gas collecting chamber through controlled atmosphere film, using oxygen permeable membrane, fresh-keeping son
The oxygen in space 271 is extracted, to make the atmosphere of the fresh-keeping formation of subspace 271 oxygen deprivation.
Aspiration pump 40 can be set in compressor room 24, and the input end of aspiration pump 40 is via pipeline 50 and controlled atmosphere membrane module
30 oxygen rich gas collecting chamber connection, is configured to outward extract the gas of oxygen rich gas collecting chamber out, so that fresh-keeping subspace 271
Interior at least partly oxygen enters oxygen rich gas collecting chamber by controlled atmosphere film, to reduce the oxygen concentration in fresh-keeping subspace.
Aspiration pump 40 is configured to the gas by oxygen rich gas collecting chamber rich in oxygen and extracts out, reduces the oxygen concentration of fresh-keeping subspace 271.
Rich nitrogen oxygen deprivation is obtained in fresh-keeping subspace 271 in favor of the atmosphere of food fresh-keeping.
Refrigerating device of the invention can make to be formed rich nitrogen oxygen deprivation in fresh-keeping subspace 271 in favor of the gas of food fresh-keeping
Body atmosphere, the atmosphere reduce the intensity of fruit/vegetable aerobic breathing, simultaneously by the content of oxygen in reduction fruits and vegetables shelf space
The respiration for guaranteeing basis prevents fruits and vegetables from carrying out anaerobic respiration, to achieve the purpose that fruits and vegetables long-period freshness preserving.Moreover, the gas
Body atmosphere also has the gases such as a large amount 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 set in compressor room 24, can make full use of 24 space of compressor room, does not occupy other ground additionally
Side, therefore not will increase the additional volumes of refrigerating device, the compact-sized 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 each other, so that the distance of 40 Range compress machine of aspiration pump is distant, reduces noise superposition and waste heat superposition.For example, taking out
Air pump 40 may be disposed at the one end of compressor room 24 closed on door body and pivot side.When refrigerating device is side by side combination refrigerator,
Aspiration pump 40 may be disposed at any position of compressor room 24.In other embodiments of the invention, aspiration pump 40 can also be with
Neighbouring compressor is arranged, such as aspiration pump 40 is set to one end of compressor room 24, and in compressor and compressor room 24
Between side wall.
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.Seal box can largely obstruct the noise of aspiration pump 40 and/or waste heat is propagated outward.
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, be preferably provided at pumping
The roof of drawer cylinder 22.The accommodating chamber 31 being connected to fresh-keeping subspace 271 is specifically provided in the roof of drawer cylinder 22.It takes out
At least one first venthole is offered in wall surface between the accommodating chamber 31 and fresh-keeping subspace 271 of the roof of drawer cylinder 22
222 and it is spaced at least one second venthole 223 for opening up at least one first venthole 222, respectively in different location
It is connected to accommodating chamber 31 and fresh-keeping subspace 271, accommodating chamber 31 and fresh-keeping subspace 271 are via at least one the first intercommunicating pore 222
It is connected to at least one second intercommunicating pore 223；Controlled atmosphere membrane module 30 is set in accommodating chamber 31, can be set at least one
The top of two intercommunicating pores 223.Accommodating chamber 31 constitutes the cyclic space being connected to 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, there is recessed groove on the inside of the roof of the first drawer cylinder 22.Controlled atmosphere
Membrane module 30 is set 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 and the gas in accommodating chamber 31 to flow, the
Blower 60 can also be set in the accommodating chamber 31 of one closed component 71, and blower 60 is used to form successively first logical via at least one
Stomata 222, accommodating chamber 31 and at least one second venthole 223 and the air-flow for returning to the fresh-keeping subspace 271, 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, to form the air-flow via controlled atmosphere membrane module 30.
The position that blower 60 is placed in accommodating chamber 31 may be at the top of at least one the first intercommunicating pore 222, promote 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, to be precipitated from the gas by it by controlled atmosphere membrane module 30
Oxygen.
Blower 60 preferably uses centrifugal blower, can be set in gas collection chamber 31 at first intercommunicating pore 222.Namely
It says, centrifugal blower 60 is located at the top of at least one the first intercommunicating pore 222, and air inlet is right against the first intercommunicating pore 222.Centrifugation
It the gas outlet of blower 60 can be towards controlled atmosphere membrane module 30.At least one second intercommunicating pore 223 can be located under controlled atmosphere membrane module 30
Side.
The roof of first drawer cylinder 22 includes lower board unit 224 and ceiling plate portion 225, limits accommodating chamber 31 jointly, such as
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 set to roof front, at least one second intercommunicating pore 223 is set to roof rear portion.Centrifugal blower 60 is set
It is placed in the front of accommodating chamber 31, controlled atmosphere membrane module 30 is set to the rear portion of accommodating chamber 31.
Controlled atmosphere membrane module 30 has controlled atmosphere film 36 and oxygen rich gas collecting chamber, and the side of controlled atmosphere film 36 is towards oxygen rich gas
Collecting chamber, to make the another of controlled atmosphere film 36 in pressure of the pressure of oxygen rich gas collecting chamber less than the other side of controlled atmosphere film 36
Oxygen in the air of side enters oxygen rich gas collecting chamber through controlled atmosphere film 36.Specifically, which can be with company
Circulatory flow (the i.e. accommodating chamber 31) contact of fresh-keeping subspace 271 is passed to, so as to be less than in the pressure of oxygen rich gas collecting chamber
When 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 30 surrounding space air-flow of controlled atmosphere membrane module more penetrates controlled atmosphere film and enters oxygen rich gas collecting chamber, also i.e. by blower
Oxygen in 60 formation air-flows more penetrates controlled atmosphere film relative to nitrogen and enters oxygen rich gas collecting chamber.Multiple first closed groups
Part 71 can use identical structure, and specific size, which can according to need, is set 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, which may also include braced frame 32.Braced frame 32 has the to be 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 run through braced frame
To be connected to multiple airflow channels of first surface and second surface, oxygen rich gas collecting chamber is collectively formed in multiple airflow channels.
Controlled atmosphere film 36 can be two layers, be layed in the two sides of braced frame 32 respectively, so that closing oxygen rich gas collecting chamber, often
Layer controlled atmosphere film 36, which may include that one or more controlled atmosphere film layer is folded, to be formed.Gas is a complicated process through controlled atmosphere film 36,
It is usually the surface dissolution that gas molecule is adsorbed to controlled atmosphere film 36 first that it, which penetrates mechanism, then the controlled atmosphere film in controlled atmosphere film 36
It is middle to dissolve with the difference of diffusion coefficient the separation for realizing gas.Under gas is acted on due to the pressure difference of 36 two sides of controlled atmosphere film,
The fast oxygen of infiltration rate is enriched in the per-meate side of controlled atmosphere film 36, to converge in oxygen rich gas collecting chamber.
Braced frame 32 may include frame, the structures such as floor and/or plate for being set in frame, between floor, floor
Can form airflow channel between plate etc., can be opened up on the surface of floor, on the surface of plate it is fluted, to form air-flow
Channel.The structural strength etc. of controlled atmosphere membrane module 30 can be improved in floor and/or plate.That is, braced frame 32 has mutually
Parallel first surface and second surface, and inside is formed with the multiple airflow channels being connected to first surface and second surface.
Two controlled atmosphere films 36 are laid on respectively in the first surface and second surface of braced frame 32, with multiple gas with braced frame 32
Circulation road is closed jointly and forms oxygen rich gas collecting chamber.
In some embodiments of the invention, braced frame 32 includes the aspirating hole being connected to aforesaid plurality of airflow channel
33, it is set on frame 32, to allow the oxygen in oxygen rich gas collecting chamber to be exported.Aspirating hole 33 and air extractor 41 connect
It is logical.Controlled atmosphere film 36 first passes through double-sided adhesive 34 and is installed on frame, is then sealed by sealant 35.
In some embodiments, the aforesaid plurality of airflow channel formed inside braced frame 32 can for it is one or more with
The cavity that aspirating hole 33 is connected to.In some embodiments, the aforesaid plurality of airflow channel formed inside braced frame 32 can have
There is network.
Specifically, braced frame 32 may include frame, the structures such as floor and/or plate for being set in frame, floor it
Between, can form airflow channel between floor and plate etc., can be opened up on the surface of floor, on the surface of plate it is fluted, with
Form airflow channel.The structural strength etc. of controlled atmosphere membrane module 30 can be improved in floor and/or plate.
Such as braced frame 32 has the first surface and second surface being parallel to each other, braced frame 32 is formed with to exist respectively
Extend on first surface, extend on a second surface, and through braced frame 32 to be connected to first surface and second surface
Multiple airflow channels.That is, multiple airflow channel include multiple first airflow channels extended on the first surface,
Multiple second airflow channels for extending on second surface and through braced frame 32 to be connected to first surface and second surface
Multiple third airflow channels.Or it is also understood that braced frame 32 is formed with multiple first extended on the first surface
Airflow channel and multiple second airflow channels extended on a second surface, and between the first airflow channel and the second airflow channel
It is connected to by third airflow channel.Oxygen rich gas collecting chamber is collectively formed in all airflow channels.
One or more controlled atmosphere film formed two planar shaped controlled atmosphere film layers, be laid on respectively braced frame first surface and
On second surface, to constitute plate shaped controlled atmosphere membrane module 30.
Braced frame 32 is formed with the aspirating hole 33 being connected to said flow channel, and aspirating hole 33 is connected to oxygen rich gas and collects
Chamber, for connecting the input end of aspiration pump 40, so that the oxygen rich gas in oxygen rich gas collecting chamber be allowed to be exported.In aspiration pump
When 40 operation, negative pressure state is in oxygen rich gas collecting chamber 38, the oxygen in 30 outside air of controlled atmosphere membrane module can continue
Controlled atmosphere film 36 is crossed to enter in oxygen rich gas collecting chamber.Braced frame 32 on the whole can generally rectangular shaped frame.
In some embodiments, braced frame 32 can include: frame, multiple first floors and multiple second floors.Before
It states multiple first floors and longitudinally spaced setting and is extended transversely, and the side table of aforesaid plurality of first floor inside frame
Face forms first surface.Multiple second floors are in the laterally spaced setting in another side surface of aforesaid plurality of first floor and along vertical
Second surface is formed to the side surface far from the first floor of extension, and aforesaid plurality of second floor.That is, aforementioned more
A 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 is respectively formed first surface and second surface；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 adjacent the first floor and the second floor
Gap forms aforesaid plurality of airflow channel.Wherein, the gap between two adjacent first floors forms and extends on the first surface
The first airflow channel, it is logical that the gap between two adjacent second floors forms the second air-flow extended on a second surface
Road, the gap between the first adjacent floor and the second floor, which is formed, is connected to first surface and second surface through braced frame 32
Third airflow channel.That is, forming aforesaid plurality of air-flow by the intersection construction that all first floors and all second floors are formed
Channel.
Above-mentioned braced frame 32 inside its frame by being arranged multiple first ribs that are longitudinally spaced and extending transversely
Plate and multiple second floors that are laterally spaced in a side surface of aforesaid plurality of first floor and extending longitudinally, thus a side
Face ensure that the continuity of airflow channel, on the other hand greatly reduce the volume of braced frame, and significantly enhance branch
The intensity of support frame frame 32.In addition, the above structure of braced frame 32 ensure that controlled atmosphere film 36 can obtain enough supports, even if
Preferable flatness can be also remained in the biggish situation of oxygen rich gas collecting chamber internal negative pressure, ensure that controlled atmosphere film group
The service life of part 30.
Aspirating hole 33 can be set to the lateral side of frame in the longitudinal middle part of frame.Setting is equivalent to from controlled atmosphere film in this way
The middle part of component 30 is evacuated, and it is uniformly ventilative to be conducive to controlled atmosphere film 36.Aspirating hole 33 can be stepped hole stepped hole in other words, at it
When connecting by hose with aspiration pump 40, guarantee the air-tightness of connecting portion.
In addition, the above structure of braced frame 32 ensure that controlled atmosphere film 36 can obtain enough supports, even if oxygen-enriched
Preferable flatness can be also remained in the biggish situation of gas collection chamber internal negative pressure, ensure that controlled atmosphere membrane module 30
Service life.
The inlet end of aspiration pump 40 is separately connected aspirating hole 33 via exhaust pipe 51, to be connected to multiple first closed groups
The oxygen rich gas collecting chamber of controlled atmosphere membrane module 30 in part 71, and be configured to outward extract the gas of oxygen rich gas collecting chamber out,
So that the oxygen content in fresh-keeping subspace 271 constantly reduces, thus formed in fresh-keeping subspace 271 rich nitrogen oxygen deprivation in favor of
The atmosphere of food fresh-keeping.Aspiration pump 40 can be set in that in compressor room 24, can make full use of 24 space of compressor room, no
It is additional to occupy elsewhere, therefore not will increase the additional volumes of refrigerating device, the structure of refrigerating device can be made tight
It gathers.
Fig. 7 is the schematic block diagram of refrigerating device according to an embodiment of the invention.The refrigerating device is also set
It is equipped with: controller 110, human-computer interaction device 120, open-closed detector 130, oxygen concentration sensor 140.
Controller 110 is used to control the adjustment of the gas of refrigerating device, according to being protected in fresh-keeping subspace 271
The type of object of suffering from indigestion carries out gas adjustment, it is corresponding control aspiration pump 40 (can also be including blower 60 etc. for bypassing air through gas
Adjust the component of film).Controller 110 is connected with the control terminal of aspiration pump 40, and control process can be with are as follows: obtains externally input food
Object stores information, and the information of saved food in fresh-keeping subspace 271 is included at least in food preservation information.Refrigerating
Device can preset that (such as fresh-keeping of vegetables, fruit freshness preserving, meat preservation, fish are fresh-keeping there are many fresh-keeping operational mode
Deng).Controller 110 can determine corresponding food fresh-keeping service condition according to the information of food, and fresh-keeping service condition is extremely
It less include the corresponding oxygen concentration range of information of food.The fresh-keeping subspace 271 that oxygen concentration sensor 140 measures
Oxygen concentration, controller 110 accordingly control aspiration pump 40 according to oxygen concentration, so that the oxygen concentration of fresh-keeping subspace 271 is protected
It holds in the corresponding oxygen concentration range of information of food.
Oxygen concentration sensor 140 is set to fresh-keeping subspace 271, can select diaphragm type galvanic electricity pool, electricity
A plurality of types of oxygen concentration sensors such as chemistry, catalysis burning, constant potential electrolytic, in some optional embodiments,
Gas analyzer can be set in fresh-keeping subspace 271, it, can also for measuring the gas content in it, including oxygen content
To include nitrogen content, carbon dioxide content etc..
Aspiration pump 40 permeates the gas of fresh-keeping subspace 271 by controlled atmosphere membrane module 30, in fresh-keeping subspace 271
Conducive to the atmosphere of food fresh-keeping, start and stop are controlled by controller 110.
By the research to food fresh-keeping characteristic, inventor has found that oxidation, the respiration of oxygen and food are close
Cut phase is closed, and traditional viewpoint thinks that oxygen concentration is lower, is more conducive to the preservation of food, however passes through inventor by measuring greatly
The summary of examination show that traditional viewpoint is simultaneously incorrect, and too low oxygen content also results in food and the case where anaerobic respiration occurs,
Food spoilage is also resulted in, therefore every kind of food has optimal preservation atmosphere.Table 1 shows the best of a part of vegetables and fruits
The oxygen level of storage ambient:
Table 1
| Vegetables and fruits type | 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, utilize
Oxygen concentration sensor 140 or other gas analyzing apparatus measure the gas componant in fresh-keeping subspace 271, are driven by controller
The corresponding start and stop of aspiration pump 40, needed for thereby may be ensured that atmosphere can be stably maintained at always in fresh-keeping subspace 271
Oxygen concentration range in.
Human-computer interaction device 120 can be configured to obtain the food preservation information of user's input, and human-computer interaction device 120 can
Key, touch screen, knob etc. are thought, to determine food preservation information by the selection operation of user.In a kind of optional reality
It applies in example, human-computer interaction device 120 can be the multiple keys 121 being set in the cavity wall of fresh-keeping subspace 271, each key
121 corresponding to a group food, such as be provided with vegetables selection key, fruit selection key etc..The quantity of key 121 can basis
Using being configured.In some optional embodiments, these keys 121 can also configure corresponding pattern and be identified,
So that user operates.
Controller 110 may be configured to detect the action event of above-mentioned multiple keys 121；It is determined and is used according to action event
Selection operation of the family to multiple keys 121；The corresponding food species of key 121 selected are determined, to obtain food preservation letter
Breath.Such as user, after selecting a certain key 121, controller 110 is assured that out corresponding oxygen concentration range.
Oxygen concentration range includes the oxygen concentration upper limit and oxygen concentration lower limit, the course of work of aspiration pump 40 are as follows: in fresh-keeping subspace
When 271 oxygen concentration is equal to or less than oxygen concentration lower limit, aspiration pump 40 is closed；Oxygen concentration in fresh-keeping subspace 271
When greater than or equal to the oxygen concentration upper limit, start aspiration pump 40.
Since fresh-keeping subspace 271 is after each open, original atmosphere can all be destroyed, therefore in fresh-keeping subspace
After 271 open be then shut off again, delayed startup aspiration pump 40 is needed.
In the refrigerating device of the present embodiment, open-closed detector 130, which can be configured to detect fresh-keeping subspace 271, to be opened
The event closed, open-closed detector 130 can be used hall device etc. and detect whether fresh-keeping subspace 271 is turned on or is closed,
When using drawer type storage room 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 and oxygen concentration sensor 140 after determining that fresh-keeping subspace 271 is opened
It remains turned-off；After determining that fresh-keeping subspace 271 is closed, oxygen concentration sensor 140 is set to resume work, and drive aspiration pump
40 continuous services are until the oxygen concentration in fresh-keeping subspace 271 is less than or equal to oxygen concentration lower limit.
The refrigerating device of the present embodiment is also provided with suggestion device.The suggestion device can determine fresh-keeping son
Space 271 issues the standby signal for updating the food preservation information after being closed, to remind user setting food preservation information.
In some optional embodiments, the key 121 with backlight can be used as suggestion device, such as after drawer is opened, presses
121 backlight open of key prompts user to re-start selection, to determine the type of food.
The embodiments of the present invention also provide a kind of fresh-keeping control methods of refrigerating device, which can
Fresh-keeping control is carried out for the refrigerating device to above-described embodiment, such as is executed by above controller 110, gas is completed
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 is generally can include:
Step S702 obtains externally input food preservation information；
Step S704 determines corresponding fresh-keeping service condition according to the information of food；
Step S706 obtains the oxygen concentration for the fresh-keeping subspace that oxygen concentration sensor 140 measures and accordingly control pumping
Air pump.
The information of saved food in fresh-keeping subspace 271 is included at least in step S702 in food preservation information.
Fresh-keeping service condition includes at least the oxygen concentration range of the best storage ambient of food.It in some optional embodiments, can be with
It is determined by the corresponding oxygen concentration range of multiclass food items in advance, after receiving the food preservation information of input,
Corresponding oxygen concentration range can be inquired.
Fresh-keeping service condition includes the oxygen concentration upper limit and oxygen concentration lower limit, and step S706 may include fresh-keeping
When the oxygen concentration of subspace 271 is equal to or less than oxygen concentration lower limit, aspiration pump 40 is closed；Oxygen in fresh-keeping subspace 271
When gas concentration is greater than or equal to the oxygen concentration upper limit, start aspiration pump 40.
In the case where refrigerating device further includes human-computer interaction device 120, step S702 can use human-computer interaction
Device 120 receives the food preservation information of user's input.It include multiple keys in human-computer interaction device 120, each key is corresponding
In the case where a group food, which can be the action event of the multiple keys of detection；User couple is determined according to action event
The selection operation of multiple keys；The corresponding food species of key selected are determined, to obtain food preservation information.Human-computer interaction
Device 120 can also use other kinds of input method, and the mode of above-mentioned key is suitable for carrying out on the cylinder 22 of drawer
Arrangement.Human-computer interaction device 120 is not intended to limit using the other kinds of component such as keyboard, touch screen.
There are may making the various events of fresh-keeping 271 gas of subspace leakage, such as refrigerating device powers on
It can also include: detection in the case where the event that event or fresh-keeping subspace 271 are opened and closed, in the implementation procedure of step S706
Fresh-keeping subspace is opened and closed or other will lead to the event of gas leakage；After determining that fresh-keeping subspace 271 is opened, driving is taken out
Air pump 40 and oxygen concentration sensor 140 remain turned-off；After determining that fresh-keeping subspace 271 is closed, sense oxygen concentration
Device 140 is resumed work, and drives 40 continuous service of aspiration pump until the oxygen concentration in fresh-keeping subspace 271 is less than or equal to oxygen
Gas concentration lower limit.
It can be sent out updating the standby signal of food preservation information after determining that fresh-keeping subspace 271 is closed；And
Reacquire externally input food preservation information.
The detailed process of the fresh-keeping control method of the refrigerating device of the present embodiment is introduced below, this sentences cold
Hiding refrigerating plant is provided with (the above-mentioned guarantors such as fruit preservation condition, leaf vegetables preservation condition, melon preservation condition, meat preservation condition
Fresh condition can be configured according to the storage requirement of user), every kind of preservation condition defines various kinds of foods and most preferably saves oxygen
Gas concentration range.Such as cabbage, optimum oxygen concentration range is 2.5-5%.Aspiration pump 40, blower 60 and other make
Gas carries out start and stop according to the oxygen concentration that oxygen concentration sensor 140 measures by the component of controlled atmosphere membrane module 30, guarantees
The oxygen concentration of fresh-keeping subspace 271 is in always in above-mentioned best preservation concentration range.In addition fresh-keeping subspace 271 can be
Drawer type storage space.On drawer or four keys 121 of indoor setting, four keys can be printed with fruit, leaf respectively
Dish, melon, meat sign, respectively correspond four group foods.
After drawer is opened and is put into certain food, detect the closure event of drawer occurred, key 121 is lit
User is prompted to select preservation condition, if user has pressed some button 121, it is right that refrigerating device enters the button 121
The fresh-keeping mode 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, 40 delay predetermined time of aspiration pump is opened, and continuous service is until make to protect
The oxygen concentration of fresh subspace 271 drops to best save in concentration range.Then according to the measurement of oxygen concentration sensor 140
As a result start and stop are carried out.It is opened if there is drawer or the case where refrigerator re-powers then repeats the above process.
Fig. 9 is a kind of execution process of the fresh-keeping control method of refrigerating device according to an embodiment of the invention.
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 determines that preservation condition, every kind of preservation condition include the preferred oxygen concentration model of the group food according to food type
It encloses.
In example shown in Fig. 9, according to the different classes of of food, it is divided into three classes: water fruits and vegetables, fresh meat (are mainly deposited
Birds meat and the flesh of fish are put, storage red meat is not suitable for).Wherein the optimal oxygen concentration of fruit is m%, the optimal oxygen concentration of vegetables
Optimal oxygen concentration for n%, fresh meat class is k%, and in general m, n value is smaller, needs 40 working time of aspiration pump longer, k
It is worth larger, needs 40 working time of aspiration pump shorter.
After aspiration pump 40 is closed, due to the leakage of gas, oxygen concentration can be gradually increasing, and set it and risen to respectively
When x%, y%, z%, aspiration pump 40 is needed to be again started up.Oxygen concentration continues to monitor its concentration, carries out circular flow.
The control method of three kinds of food qualification categories is illustrated only in Fig. 8, equally, can also to various foods it is fresh-keeping require into
Row test, obtains best storage condition and corresponding oxygen concentration range, can be in operation interface after user is put into food
Upper input food name, refrigerating device Auto-matching determines corresponding oxygen concentration range, to meet the group food
Storage request.
The start and stop of above-mentioned aspiration pump 40 are generally synchronous with the start and stop of blower 60, the work week of the cycle of operation namely controlled atmosphere film
Phase.The present embodiment installs oxygen concentration sensor 140 in fresh-keeping subspace 271, oxygen concentration can be monitored in real time, if necessary
Food species can be selected for user with real-time display specific value, key 121 or other input units.
The refrigerating device of the present embodiment and its fresh-keeping control method, creatively propose using controlled atmosphere film (such as
Oxygen permeable membrane) space is discharged in the particular kind of gas (such as oxygen) in air in closed fresh-keeping subspace by component, from
And obtained in the space rich nitrogen oxygen deprivation or other in favor of food fresh-keeping atmosphere.Such as the gas atmosphere of rich nitrogen oxygen deprivation
The content by reducing oxygen in fruits and vegetables shelf space is enclosed, the intensity of fruit/vegetable aerobic breathing is reduced, while guaranteeing the breathing on basis
Effect prevents fruits and vegetables from carrying out anaerobic respiration, to achieve the purpose that fruits and vegetables long-period freshness preserving.Also, the present invention is also according to being saved
Atmosphere is maintained at most beneficial under conditions of this kind of food, to meet food to the greatest extent by the type of food
The needs of storage.
Further, refrigerating device of the invention and its fresh-keeping control method, using physical button or other forms
Man-machine interactive interface obtain food information, it is easy to operate, it is user-friendly.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (10)
1. a kind of fresh-keeping control method of refrigerating device, the refrigerating device include the case for defining storage space
Body, controlled atmosphere membrane module, aspiration pump, drawer and oxygen concentration sensor, wherein the drawer is set to the storage space
Interior, the drawer is formed with closed fresh-keeping subspace, and the oxygen concentration sensor is set in the fresh-keeping subspace, and
And the aspiration pump is configured to make the gas of the fresh-keeping subspace of the storage space to permeate by the controlled atmosphere membrane module, with
It is conducive to the atmosphere of food fresh-keeping in the fresh-keeping subspace of the storage space, the controlled atmosphere membrane module is set to the drawer
Drawer cylinder roof, the controlled atmosphere membrane module includes two controlled atmosphere films and with the first surface being parallel to each other and the second table
The braced frame in face, and the multiple gas being connected to the first surface and the second surface are formed with inside the braced frame
Circulation road, two controlled atmosphere films are laid on respectively in the first surface and second surface of the braced frame, with the branch
Multiple airflow channels of support frame frame are closed jointly forms oxygen rich gas collecting chamber, and the fresh-keeping control method includes:
Externally input food preservation information is obtained, includes at least in the food preservation information and is protected in the fresh-keeping subspace
It suffers from indigestion the information of object；
Determine that corresponding fresh-keeping service condition, the fresh-keeping service condition include at least described according to the information of the food
The corresponding oxygen concentration range of the information of food；
It obtains the oxygen concentration of the fresh-keeping subspace of the oxygen concentration sensor measurement and accordingly controls the aspiration pump,
So that the oxygen concentration of the fresh-keeping subspace is maintained in the oxygen concentration range.
2. according to the method described in claim 1, wherein, the refrigerating device further include: human-computer interaction device, and obtain
The step of taking externally input food preservation information further include:
Receive the food preservation information that user is inputted by the human-computer interaction device.
3. according to the method described in claim 2, wherein, the human-computer interaction device includes multiple keys, each key
Corresponding to a group food, and the step of receiving the food preservation information that user is inputted by the human-computer interaction device is also
Include:
Detect the action event of the multiple key；
Determine the user to the selection operation of the multiple key according to the action event；
The corresponding food species of key selected are determined, to obtain the food preservation information.
4. according to the method described in claim 1, wherein,
The fresh-keeping service condition includes the oxygen concentration upper limit and oxygen concentration lower limit, and accordingly controls the step of the aspiration pump
Suddenly include:
When oxygen concentration in the fresh-keeping subspace is equal to or less than the oxygen concentration lower limit, the aspiration pump is closed；
When oxygen concentration in the fresh-keeping subspace is greater than or equal to the oxygen concentration upper limit, start the aspiration pump.
5. according to the method described in claim 4, wherein, during accordingly controlling the aspiration pump further include:
Detect the event that the fresh-keeping subspace is opened and closed；
After determining that the fresh-keeping subspace is opened, the aspiration pump and the oxygen concentration sensor is driven to remain turned-off；
After determining that the fresh-keeping subspace is closed, the oxygen concentration sensor is set to resume work, and drive the pumping
Continuous service is pumped until the oxygen concentration in the fresh-keeping subspace is less than or equal to the oxygen concentration lower limit.
6. according to the method described in claim 5, wherein, after determining that the fresh-keeping subspace is closed further include:
Issue the standby signal for updating the food preservation information；And reacquire externally input food preservation information.
7. a kind of refrigerating device, comprising:
Cabinet, it is interior to limit by storage space；
Drawer is set in the storage space, is formed with closed fresh-keeping subspace；
Controlled atmosphere membrane module, the controlled atmosphere membrane module are set to the roof of the drawer cylinder of the drawer, surrounding space with it is described
The connection of fresh-keeping subspace, the controlled atmosphere membrane module include two controlled atmosphere films and with the first surface and second surface being parallel to each other
Braced frame, and the multiple air-flows being connected to the first surface and the second surface are formed with inside the braced frame
Channel, two controlled atmosphere films are laid on respectively in the first surface and second surface of the braced frame, with the support
Multiple airflow channels of frame are closed jointly forms oxygen rich gas collecting chamber；
Aspiration pump, input end are connected to the oxygen rich gas collecting chamber, and are configured to the gas of the oxygen rich gas collecting chamber
Body is extracted out outward, so that at least partly oxygen in the fresh-keeping subspace is received by the controlled atmosphere film into the oxygen rich gas
Collect chamber, to reduce the oxygen concentration in the fresh-keeping subspace；
Controller is connected with the control terminal of the aspiration pump, and is configured to: externally input food preservation information is obtained, it is described
The information of the food saved in the fresh-keeping subspace is included at least in food preservation information；According to the kind of the food
Category information determines that corresponding fresh-keeping service condition, the information that the fresh-keeping service condition includes at least the food are corresponding
Oxygen concentration range；It obtains the oxygen concentration of the oxygen concentration sensor measurement and accordingly controls the aspiration pump, so that institute
The oxygen concentration for stating fresh-keeping subspace is maintained in the oxygen concentration range.
8. refrigerating device according to claim 7, further includes:
Human-computer interaction device is configured to obtain the food preservation information of user's 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 obtains
State food preservation information.
9. refrigerating device according to claim 8, wherein
The human-computer interaction device includes multiple keys, is set in the cavity wall of the fresh-keeping subspace, each key pair
Ying Yuyi group food, and
The controller is configured to detect the action event of the multiple key；The use is determined according to the action event
Selection operation of the family to the multiple key；The corresponding food species of key selected are determined, to obtain the food preservation
Information.
10. refrigerating device according to claim 7, further includes:
Open-closed detector is configured to detect the event that the fresh-keeping subspace is opened and closed；And
The fresh-keeping service condition includes the oxygen concentration upper limit and oxygen concentration lower limit；
The controller is configured to be equal to or less than the oxygen concentration lower limit in the oxygen concentration of the fresh-keeping subspace
When, close the aspiration pump；When oxygen concentration in the fresh-keeping subspace is greater than or equal to the oxygen concentration upper limit, starting
The aspiration pump；And after determining that the fresh-keeping subspace is opened, the aspiration pump and the oxygen concentration is driven to sense
Device remains turned-off；After determining that the fresh-keeping subspace is closed, the oxygen concentration sensor is set to resume work, and drive institute
Aspiration pump continuous service is stated until the oxygen concentration in the fresh-keeping subspace is less than or equal to the oxygen concentration lower limit.
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| CN107436067B (en) * | 2017-06-30 | 2019-12-06 | 青岛海尔股份有限公司 | Refrigerating and freezing device and control method thereof |
| CN108309067B (en) * | 2018-01-19 | 2021-02-02 | 青岛海尔智慧厨房电器有限公司 | Control method of electric oven and electric oven |
| CN109737671B (en) * | 2018-12-28 | 2021-08-24 | 海尔智家股份有限公司 | Refrigerating and freezing device and control method thereof |
| CN110037096B (en) * | 2019-04-03 | 2022-12-23 | 贵州亚港气体有限公司 | Movable fresh-keeping gas supply equipment and supply method |
| CN110720504B (en) * | 2019-10-09 | 2023-01-31 | 浙江海洋大学 | Method for delaying deterioration of texture quality of shrimps in storage process |
| CN111664627B (en) * | 2020-05-27 | 2022-05-13 | 海信容声(广东)冰箱有限公司 | Control method of controlled atmosphere preservation device and refrigerator |
| CN114076440A (en) * | 2020-08-10 | 2022-02-22 | 海信（山东）冰箱有限公司 | Refrigerator and oxygen extraction control method thereof |
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