CN106403482A - Unfreezing device, unfreezing method and refrigerator - Google Patents

Unfreezing device, unfreezing method and refrigerator Download PDF

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Publication number
CN106403482A
CN106403482A CN201610762222.6A CN201610762222A CN106403482A CN 106403482 A CN106403482 A CN 106403482A CN 201610762222 A CN201610762222 A CN 201610762222A CN 106403482 A CN106403482 A CN 106403482A
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CN
China
Prior art keywords
food
cavity
high frequency
temperature
radio
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Pending
Application number
CN201610762222.6A
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Chinese (zh)
Inventor
王海娟
肖建军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Hualing Co Ltd
Midea Group Co Ltd
Hefei Midea Refrigerator Co Ltd
Original Assignee
Hefei Hualing Co Ltd
Midea Group Co Ltd
Hefei Midea Refrigerator Co Ltd
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Publication date
Application filed by Hefei Hualing Co Ltd, Midea Group Co Ltd, Hefei Midea Refrigerator Co Ltd filed Critical Hefei Hualing Co Ltd
Priority to CN201610762222.6A priority Critical patent/CN106403482A/en
Publication of CN106403482A publication Critical patent/CN106403482A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/06—Freezing; Subsequent thawing; Cooling
    • A23B4/07—Thawing subsequent to freezing
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36—Freezing; Subsequent thawing; Cooling
    • A23L3/365—Thawing subsequent to freezing
    • 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
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/005—Combined cooling and heating devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/46—Dielectric heating
    • H05B6/48—Circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/46—Dielectric heating
    • H05B6/62—Apparatus for specific applications

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
  • Electric Ovens (AREA)

Abstract

The invention provides an unfreezing device, an unfreezing method and a refrigerator. The unfreezing device comprises a cavity, a coupling window and a high-frequency generator, wherein the coupling window is arranged on the side wall of the cavity, the high-frequency generator is used for generating high-frequency waves, the high-frequency waves enter the cavity via the coupling window, and then multiple wave beams are emitted and irradiated to food to be unfrozen in the cavity so that the food can be unfrozen. According to the unfreezing device provided by the invention, all molecules of the unfrozen food bear the high-frequency waves, the polarity of polar molecules is changed at a high frequency, accordingly, the interior and the exterior of the unfrozen food are heated and unfrozen simultaneously, the temperature of the unfrozen food is uniform, the unfreezing speed is high, and the possibility of pollution caused by microorganisms is reduced. Meanwhile, the food to be unfrozen is dissolved fast through a largest ice crystal dissolution belt, the drop liquid loss is reduced, the loss of nutrients of the unfrozen food is effectively prevented, the quality of the unfrozen food is ensured, and large food can also be unfrozen, so that user experience is improved.

Description

Thawing apparatus, defreezing method and refrigerator
Technical field
The present invention relates to field of household appliances, in particular to a kind of thawing apparatus, defreezing method and refrigerator.
Background technology
At present, because the food being in freezing state in refrigerator can not directly eat, before culinary art frozen food, need Thaw.From heat transfer angle, thaw can be divided into by outer and in defrosting and two big class of inside and outside simultaneously thawing.By outer and in defrosting Also referred to as outside heating method, from the higher medium of temperature to freezing product surface heat transfer, heat is gradually transmitted to center from surface, empty Gas defrosting, water thawing, infra-red radiation thawing, metallic plate thaw broadly fall into by outer and in thawing mode；Inside and outside thaw simultaneously Referred to as inside heating method, makes to freeze each position of product to heat simultaneously, and microwave thawing, food energising are thawed etc. belongs to and inside and outside thaws simultaneously Mode.
The multiplex greatly normal-temperature water of user, hot water, normal temperature air thaw at present, and thawing time is long, outer by environment temperature, season etc. The restriction of portion's factor, defrosting effect is bad；Or thawed using microwave, although microwave thawing thawing rate is fast, existed Thaw uneven, make food local discolouration, or even the phenomenon of curing, practical application microwave thawing and few, therefore, thaw this Item daily routines, become a big pain spot of user.
Thawing apparatus in correlation technique is made up of defrosting room, fan, electric heater, and the mode of defrosting is comparatively laborious, needs Setting water pipe, magnetic valve, pump etc., complex structure；Also have using far-infrared radiation source realize to food by outer and in defrosting, with And by vibrating device, the vibration generation heat of food is realized thawing, realized thawing, led to by the heating that food resistance acts on Cross microwave food carried out with check heating and realize thawing, but the defrosting effect of these thawing apparatus bad, exist with Lower defect：
1st, time-consuming for defrosting, makes to be defrosted food easily by microorganism pollution, the food quality decline after defrosting；
2nd, defrosting is uneven, makes the food local discolouration after defrosting, or even curing；
3rd, the food juice loss after thawing is many, and nutritive loss is big；
4th, limited by external factor such as environment temperature, seasons；
5th, defrosting room temperature change is larger, and power consumption is larger.
Content of the invention
In order to solve at least one above-mentioned technical problem, the embodiment of a first aspect of the present invention proposes a kind of dress that thaws Put.
A second aspect of the present invention embodiment is it is also proposed that a kind of defreezing method.
Another aspect of the invention embodiment is it is also proposed that a kind of refrigerator.
In view of this, embodiment according to the first aspect of the invention, the present invention proposes a kind of thawing apparatus, including： Cavity, treats thawed foodstuff for placing；Coupling window, is arranged on the side wall of cavity；Radio-frequency generator, for producing high frequency waves, The coupled window of high frequency waves sends a plurality of wave beam after entering into cavity, and a plurality of wave beam penetrated on treating thawed foodstuff treats thawed foodstuff Thawed.
The thawing apparatus that the present invention provides, radio-frequency generator produces high frequency waves, and high frequency waves are through the coupling window on cavity wall A plurality of wave beam is sent, a plurality of wave beam penetrates treating on thawed foodstuff in placed cavity body, treats thawed foodstuff and enters after entering into cavity Row thaws.The wave beam producing after being acted on by high frequency waves is thawed to being defrosted food, so that all molecules of food is all subject to The effect of high frequency waves is so as to there is high frequency time change in the polarity of polar molecule, so that be defrosted food be inside and outside heated simultaneously Thaw, make the food temperature after defrosting uniformly, thawing rate is fast, reduces the possibility of microorganism pollution, meanwhile, wait the food that thaws Thing passes through maximum ice crystal dissolving band and quickly dissolves, and reduces drip loss, efficiently avoid the loss of food nutrition after defrosting, carry Rise the quality of food after thawing, meanwhile, can thaw larger food, lift Consumer's Experience.
In addition, the thawing apparatus in above-described embodiment of present invention offer can also have following additional technical feature：
It is preferable that the material of the inwall of cavity and door body is high frequency waves reflecting material, to entrance in technique scheme The a plurality of wave beam of cavity is reflected.
In this technical scheme, the inwall of cavity and the material of door body all adopt high frequency waves reflecting material, to entrance cavity A plurality of wave beam reflected.On the one hand, effectively prevent the leakage of high frequency waves；On the one hand, high frequency waves are formed after reflection Uniform electromagnetic wave, increased the quantity of electromagnetic wave, and then so that all molecules of whole food is all acted on by high frequency waves, make There is high frequency time change in the polarity of its polar molecule, make the food temperature after defrosting uniformly, and the larger food of quick-thawing, has Effect ground improves thawing rate, reduces thawing time, it is to avoid after thawing food nutrition loss it is ensured that after thawing food product Matter, improves the satisfaction that user uses.Further, the material of cavity and door body can also be other high frequency waves reflecting materials.
It is preferable that also including in technique scheme：Temperature-detecting device, is arranged in cavity, for real-time detection Cavity inner temperature；Controller, is connected with temperature-detecting device, high for when cavity inner temperature reaches preset temperature, controlling Frequency generator stops.
In this technical scheme, by arranging temperature-detecting device in cavity, real-time detection cavity inner temperature, in cavity When interior temperature reaches preset temperature, the controller being connected with temperature-detecting device controls radio-frequency generator to stop, and makes to be defrosted Food will not be heated by crossing, and is maintained at the state of ice milk, it is to avoid long-time defrosting makes food local discolouration and the phenomenon of curing, Make to be defrosted food thawing uniformly, fresh Nutrient, it is to avoid food waste, when cavity inner temperature reaches preset temperature, control simultaneously Radio-frequency generator stops, it is to avoid user forgets that closing switch makes radio-frequency generator work always, effectively ensures to be defrosted eating The quality of thing, saving energy consumption, reduces defrosting cost, improves security, lift Consumer's Experience.Further, radio-frequency generator sets It is equipped with activate switch, control the start and stop of radio-frequency generator, facilitate user to control the start and stop of radio-frequency generator at any time, easy to operate, Meet the demand of different user, lift Consumer's Experience.
It is preferable that also including in any of the above-described technical scheme：Input unit, for the setting time of receives input；Meter When device, for timing is carried out according to the setting time, and when reaching the setting time, to controller sending signal；Controller, with Time set is connected, for when receiving the signal of time set, controlling radio-frequency generator to stop.
In this technical scheme, the setting time of input unit receives input, time set was counted according to the setting time When, and when reaching the setting time, to the controller sending signal being connected with time set, controller is receiving timing dress During the signal put, radio-frequency generator is controlled to stop.Quit work by input setting time control radio-frequency generator, lift user Experience, so that food is thawed according to the input information of user, lifting user participation, improve user satisfaction, simultaneously It is effectively guaranteed the quality of food thawing, on the one hand, avoid time short food not thaw completely it is impossible to use；On the one hand, keep away Having exempted from long-time defrosting makes food local discolouration and the phenomenon of curing, significantly reduces the possibility of microorganism pollution, enters one Save energy consumption to step, reduced defrosting cost, improve security.
It is preferable that also including in technique scheme：Input unit, for the setting time of receives input；Timing fills Put, for timing is carried out according to the setting time, and when reaching the setting time, to controller sending signal；Controller, with timing Device is connected, for when receiving the signal of time set, controlling radio-frequency generator to stop.
In this technical scheme, the setting time of input unit receives input, time set was counted according to the setting time When, and when reaching the setting time, to the controller sending signal being connected with time set, controller is receiving timing dress During the signal put, radio-frequency generator is controlled to stop.Further, temperature-detecting device, real-time detection are set in cavity simultaneously Cavity inner temperature, when cavity inner temperature reaches preset temperature, the controller being connected with temperature-detecting device controls height to take place frequently Raw device stops.On the one hand, cavity inner temperature reaches preset temperature, and the timing of time set not up to arranges the time, with temperature inspection Survey the controller control radio-frequency generator stopping that device is connected；On the one hand, the timing of time set reaches setting time, cavity Interior temperature is not up to preset temperature, and the controller being connected with time set controls radio-frequency generator to stop；On the one hand, cavity interior temperature Degree reaches preset temperature, and the timing of time set also reaches the setting time, and the controller being connected with temperature-detecting device is controlled Radio-frequency generator stops, and the controller being simultaneously connected with time set controls radio-frequency generator to stop.By preset temperature and setting The time two ways of putting is controlled to radio-frequency generator simultaneously, effectively automatically controlling the active control of user and device Be combined together, improve the experience of user it is ensured that after thawing food quality, it is to avoid long-time defrosting makes the food overheated Produce local discolouration and the phenomenon of curing, make to be defrosted food thawing uniformly, fresh Nutrient, it is to avoid food waste, effectively save About energy consumption, reduces defrosting cost, further increasing security, lifts Consumer's Experience, meanwhile, meets different structure and not The demand of congenerous, applied widely, improve user satisfaction, lift Consumer's Experience.
It is preferable that input unit is additionally operable to the food weight of receives input in any of the above-described technical scheme；And control Device, determines the setting time according to food weight, and makes timing means start timing according to the setting time.
In this technical scheme, the food weight of input unit also receives input, controller sets according to food weight determination Put the time, and make timing means start timing according to the setting time.Control thawing time by inputting food weight, it is to avoid User cannot determine that setting time or the setting time of input are mismatched with the thawing time treating the real needs of thawed foodstuff, makes Treat that the time that thawed foodstuff is defrosted is more accurate, user-friendly, and then ensure that the quality after food thawing, improve and thaw Efficiency, further, the weight due to treating thawed foodstuff is easier to determine for user, and then user-friendly, improves The satisfaction of user, meets the demand of different user simultaneously, improves the experience of user, and the scope of application is more extensive.
It is preferable that also including in technique scheme：Weight sensor, is arranged in cavity, waits to thaw for measuring The weight of food, and testing result is sent to controller；And controller, the setting time is determined according to food weight, and makes Timing means starts timing according to the setting time.
In this technical scheme, the weight of thawed foodstuff is treated in the weight sensor measurement being arranged in cavity, and will detect Result sends to controller, and controller determines the setting time according to food weight, and so that timing means is started according to the setting time Timing.The setting time is controlled by the weight that thawed foodstuff is treated in weight sensor measurement, eliminates the input of setting time, letter Change user operation, lifted Consumer's Experience, improved user satisfaction, further, made the setting time with to treat thawed foodstuff real Required thawing time more mates, and more accurately, is effectively improved defrosting efficiency it is ensured that quality after food thawing, meets The demand of different user, the scope of application is more extensive.
It is preferable that display module in any of the above-described technical scheme, it is arranged in door body, is connected with control circuit, use In display setting time, preset temperature and food weight.
In this technical scheme, door body is provided with display module, is connected with control circuit, for during display setting Between, preset temperature and food weight.Setting time, preset temperature and food weight are shown by display module, makes the number of input According to more intuitively, being more accurately shown in door body, facilitate user to observe and confirm, lift Consumer's Experience.Further, show mould Button is provided with block, is connected with control circuit, for inputting setting time, preset temperature and food weight, facilitate user Operation, lifts Consumer's Experience, lifts user satisfaction.Further, can there are one or more buttons.Further, each The corresponding unit of individual button is different, meets the demand of different user, lifts Consumer's Experience, improves user satisfaction.
It is preferable that radio-frequency generator includes in any of the above-described technical scheme：High frequency electric source；Magnetron, connects tremendously high frequency Power supply, produces high-frequency electromagnetic oscillation；Waveguide, is connected with magnetron, and waveguide is subject to the excitation of high-frequency electromagnetic oscillation to produce high frequency Ripple；And power supply, it is that radio-frequency generator is powered.
In this technical scheme, radio-frequency generator includes high frequency electric source, magnetron, waveguide and power supply, and wherein, power supply is height Frequency generator is powered, and magnetron is connected with high frequency electric source, produces high-frequency electromagnetic oscillation, and the waveguide that is connected with magnetron is subject to high frequency The excitation of electromagnetic viscosimeter produces high frequency waves.Worked by high frequency electric source, magnetron produces high-frequency electromagnetic oscillation, magnetron output Energy enters row energization to waveguide, produces high frequency waves, and waveguide enters into defrosting room the coupled window of high frequency waves producing, and couples window A plurality of wave beam can be sent, these beam powers are essentially identical, the incidence wave of wave beam forms standing wave with back wave, and in defrosting room Interior roundtrip thaws to frozen food.Acted on by high frequency waves and be defrosted food, so that the molecule of whole food is all subject to To high frequency waves effect so as to polar molecule polarity occur high frequency time change so that be defrosted food inside and outside added simultaneously Pyrolysis is frozen, and accelerates thawing rate, improves defrosting efficiency, reduces the possibility of microorganism pollution, the food temperature after making to be defrosted Uniformly, meanwhile, food passes through maximum ice crystal dissolving band and quickly dissolves degree, reduces drip loss, efficiently avoid and is defrosted eating The loss of thing nutrition, improves the quality of food after defrosting, lifts Consumer's Experience, and larger food can be thawed, carry High user satisfaction.
It is preferable that also including in any of the above-described technical scheme：Door body closing detecting apparatus, for detecting door body When opening, send cut-off signal to controller, when door body closing is detected, send Continuity signal to controller；Controller connects After receiving cut-off signal, deenergization, and when receiving Continuity signal, switch on power.
In this technical scheme, door body closing detecting apparatus, when door body is detected and opening, send to controller and disconnect letter Number, when door body closing is detected, send Continuity signal to controller；After controller receives cut-off signal, deenergization, connect When receiving Continuity signal, switch on power.On the one hand, when door body is opened, controller sends cut-off signal, radio-frequency generator not work Make；On the one hand, when door body closes, controller sends Continuity signal, and radio-frequency generator works, the safety being effectively improved Property, reduce the energy consumption of defrosting, save understanding and be frozen into this, meanwhile, the switch of door body and the switch of radio-frequency generator are connected on one Rise, it is to avoid user needs to close radio-frequency generator before enabling, simplifies operating procedure, easy to use, lifts Consumer's Experience, Improve user satisfaction.It is preferable that also including in any of the above-described technical scheme：Direct-cooled evaporimeter, is arranged on the back of cavity Between plate and foaming layer, for making the temperature in cavity be maintained in the range of set point of temperature.
In this technical scheme, direct-cooled evaporimeter is arranged between the postnotum of cavity and foaming layer, makes in cavity Temperature is maintained in the range of set point of temperature, is effectively guaranteed the stability of cavity inner temperature, because radio-frequency generator is according to chamber Temperature automatically controls and quits work, it is to avoid be defrosted food thawing overlong time, by cross heating lead to food local discolouration and The phenomenon of curing, and then ensure that the quality of thawed foodstuff, make the food fresh Nutrient after defrosting, lift user satisfaction.
It is preferable that also including in any of the above-described technical scheme：Air inlet, is arranged on the top of cavity；And return air Mouthful, it is arranged on the bottom of cavity, air inlet and air outlet are used for making the temperature in cavity be maintained in the range of set point of temperature.
In this technical scheme, air inlet is arranged on the top of cavity, and return air inlet is arranged on the bottom of cavity, air inlet and Air outlet is used for making the temperature in cavity be maintained in the range of set point of temperature, is effectively guaranteed the stability of cavity inner temperature. Further, air inlet is arranged on the right back upper place of cavity, and return air inlet is arranged on the left front bottom of cavity, makes wind in cavity Flowing more reasonable, be conducive to the temperature in cavity is maintained in the range of set point of temperature, make the temperature in cavity more stable.Enter One step ground, the wind in cavity flows between air inlet and return air inlet, accelerates the defrosting of food, effectively raises defrosting effect Rate, reduces defrosting cost.Because radio-frequency generator automatically controls stopping according to cavity temperature, it is to avoid be defrosted the food thawing time Long, crossed and heated the phenomenon leading to food local discolouration and curing, and then be ensure that the quality of thawed foodstuff, after making defrosting Food fresh Nutrient, lifts user satisfaction.
It is preferable that set point of temperature is within the temperature range of -5 DEG C to -1 DEG C in any of the above-described technical scheme.
Ice milk area temperature phase it is stipulated that temperature is within the temperature range of -5 DEG C to -1 DEG C in this technical scheme, with refrigerator Meet, one side cavity is defrosted food for placement, on the one hand, cavity, as ice milk area, is deposited and do not needed to preserve for a long time Food, meet user's different demands, lift Consumer's Experience.Further, due to high frequency generating apparatus to food thawing when, The temperature change of cavity is affected less, make, in the case that cavity has deposited ice milk food, to start high frequency generating apparatus to chamber Treat that thawed foodstuff is thawed in vivo, reach consistent with the temperature of original ice milk food stop thaw, effectively save storage Space, reduces energy consumption, lifts Consumer's Experience, improves user satisfaction.
Embodiment is it is also proposed that a kind of defreezing method according to the second aspect of the invention, including：Radio-frequency generator produces high Frequency ripple；High frequency waves enter cavity through the coupler being arranged on the side wall of cavity, send a plurality of wave beam；A plurality of wave beam is penetrated in chamber Internal treats on thawed foodstuff, is thawed with treating thawed foodstuff.
The defreezing method that second aspect present invention provides, radio-frequency generator produces high frequency waves, and high frequency waves are through on cavity wall Coupling window enter into cavity, send a plurality of wave beam, a plurality of wave beam penetrates a plurality of wave beam on the food to be solved in placed cavity body Treat thawed foodstuff to be thawed.Acted on by high frequency waves and treat thawed foodstuff, make all molecules of food all be subject to high frequency waves Effect so as to polar molecule polarity occur high frequency time change so that be defrosted food inside and outside simultaneously be heated thaw, make Uniformly, thawing rate is fast, reduces the possibility of microorganism pollution, meanwhile, treats that thawed foodstuff passes through for food temperature after defrosting Maximum ice crystal dissolving band quickly dissolves, and reduces drip loss, efficiently avoid the loss of food nutrition after defrosting, and lifting is thawed The quality of food afterwards, can thaw larger food simultaneously, lifts Consumer's Experience.
It is preferable that also including in technique scheme：When cavity inner temperature reaches preset temperature, height is controlled to take place frequently Raw device stops producing high frequency waves.
In this technical scheme, when cavity inner temperature reaches preset temperature, radio-frequency generator is controlled to stop producing high frequency Ripple.By the comparison of the temperature of cavity and preset temperature, make radio-frequency generator stop producing high frequency waves, be effectively guaranteed and solved Jelly food will not be heated by crossing, and is maintained at the state of ice milk, it is to avoid long-time defrosting makes showing of food local discolouration and curing As, make the food thawing after defrosting uniformly, fresh Nutrient, it is to avoid food waste, when cavity inner temperature reaches preset temperature simultaneously, Control radio-frequency generator to stop, it is to avoid user forgets closing switch, and radio-frequency generator works always, effectively ensure to be defrosted The quality of food, saving energy consumption, reduces defrosting cost, improves security, lift Consumer's Experience.
It is preferable that also including in technique scheme：After radio-frequency generator produces the high frequency waves scheduled time, control Radio-frequency generator stops producing high frequency waves, and the wherein scheduled time comes true by user input or according to the food weight of user input Fixed.
In this technical scheme, after radio-frequency generator produces the high frequency waves scheduled time, radio-frequency generator is controlled to stop producing Raw high frequency waves.By arrange time control radio-frequency generator stop send high frequency waves, lifting user experience, make food according to The selection at family is thawed, and improves user satisfaction, simultaneously effective ensure that the quality of food thawing, on the one hand, when avoiding Between short food completely thaw it is impossible to use；On the one hand, it is to avoid long-time defrosting makes showing of food local discolouration and curing As significantly reducing the possibility of microorganism pollution, further having saved energy consumption, reduce defrosting cost, improve peace Quan Xing.Further, the scheduled time determines by user input or according to the food weight of user input, improves the ginseng of user With degree, meet the demand of different user, lift Consumer's Experience, user-friendly.Further, by input food weight Control the scheduled time, it is to avoid user cannot determine setting time of setting time or input and treat thawed foodstuff and really need Thawing time mismatch, make to treat that the time that thawed foodstuff is defrosted is more accurate, user-friendly, and then ensure that food solution Quality after jelly, improves defrosting efficiency.Further, because the weight treating thawed foodstuff is easier to determine for user, enter And user-friendly, improve the satisfaction of user, meet the demand of different user simultaneously, improve the experience of user, fit More extensive with scope.
Embodiment is it is also proposed that a kind of refrigerator in accordance with a further aspect of the present invention, including described in any of the above-described technical scheme Thawing apparatus.
The refrigerator that the embodiment of further aspect of the present invention provides, because including above-mentioned thawing apparatus, thus, occurred by high frequency Device produces high frequency waves, and high frequency waves enter into through the coupling window on cavity wall and send a plurality of wave beam after cavity, penetrates and is placing cavity A plurality of wave beam on interior food to be solved is treated thawed foodstuff and is thawed.Acted on by high frequency waves and be defrosted food, make food All molecules of thing are all subject to the effect of high frequency waves so as to the polarity of polar molecule occurs high frequency time to change, so that being defrosted Food is inside and outside heated simultaneously and thaws, and makes the food temperature after defrosting uniformly, and thawing rate is fast, and reduce microorganism pollution can Energy property, meanwhile, treats that thawed foodstuff is quickly dissolved by maximum ice crystal dissolving band, reduces drip loss, efficiently avoid defrosting The loss of food nutrition afterwards, the quality of food after lifting defrosting, meanwhile, can thaw larger food, lifts Consumer's Experience.
The additional aspect of the present invention and advantage will become obvious in following description section, or by the practice of the present invention Recognize.
Brief description
The above-mentioned and/or additional aspect of the present invention and advantage will become from reference to the description to embodiment for the accompanying drawings below Substantially and easy to understand, wherein：
Fig. 1 is the structural representation of thawing apparatus in embodiments of the invention；
Fig. 2 is the schematic diagram that moves in the electric field of polar molecule of water in embodiments of the invention；
Fig. 3 is the position relationship schematic diagram figure of the thawing apparatus shown in Fig. 1 and refrigerator；
Fig. 4 is the display schematic diagram of the display unit of one embodiment of the present of invention；
Fig. 5 is the display schematic diagram of the display unit of an alternative embodiment of the invention；
The schematic flow sheet of Fig. 6 defreezing method according to an embodiment of the invention；
The schematic flow sheet of Fig. 7 defreezing method according to another embodiment of the invention；
Wherein, in Fig. 1 to Fig. 3, the corresponding relation between reference and component names is：
1 thawing apparatus, 12 cavitys, 14 coupling windows, 16 radio-frequency generators, 1602 wave beams, 1604 high frequency electric sources, 1606 magnetic controls Pipe, 1608 waveguides, 1610 power supplys, 1612 activate switches, 18 door body switches, 1202 air inlets, 1204 return air inlets, 100 refrigerators.
Specific embodiment
In order to be more clearly understood that the above objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specifically real Mode of applying is further described in detail to the present invention.It should be noted that in the case of not conflicting, the enforcement of the application Feature in example and embodiment can be mutually combined.
Elaborate a lot of details in the following description in order to fully understand the present invention, but, the present invention also may be used To be implemented different from other modes described here using other, therefore, protection scope of the present invention is not described below Specific embodiment restriction.
Referring to Fig. 1 to Fig. 5, described according to some embodiments of the invention thawing apparatus is described.
As shown in figure 1, the present invention proposes a kind of thawing apparatus, including：Cavity 12, coupling window 14 and radio-frequency generator 16.Cavity 12 treats thawed foodstuff for placement, and coupling window 14 is arranged on the side wall of cavity 12, and radio-frequency generator 16 produces high frequency Ripple, the coupled window of high frequency waves 14 sends a plurality of wave beam 1602 after entering into cavity 12, penetrate a plurality of wave beam on treating thawed foodstuff 1602 treat thawed foodstuff is thawed.
The thawing apparatus that the present invention provides, radio-frequency generator 16 produces high frequency waves, and high frequency waves are through the coupling on cavity 12 side wall Close window 14 enter into cavity 12 after send a plurality of wave beam 1602, a plurality of wave beam 1602 penetrate place cavity 12 in treat thawed foodstuff On, treat thawed foodstuff and thawed.The wave beam 1602 producing after being acted on by high frequency waves is thawed to being defrosted food, makes All molecules of food are all subject to the effect of high frequency waves so as to the polarity of polar molecule occurs high frequency time to change, so that being solved Freeze food and be inside and outside heated defrosting simultaneously, make the food temperature after defrosting uniformly, thawing rate is fast, reduces microorganism pollution Possibility, meanwhile, treats that thawed foodstuff is quickly dissolved by maximum ice crystal dissolving band, reduces drip loss, is effectively prevented from understanding The loss of food nutrition after jelly, the quality of food after lifting defrosting, meanwhile, can thaw larger food, lifts Consumer's Experience.
As shown in Fig. 2 the principle that high frequency waves thaw is to carry out heating using the dielectric property of material thawing.Food thing Polar molecule (referred to as dipole) in material is making random motion in a jumble, when being in electric field, polar molecule taking water as a example To rearrange, towards negative pole, electronegative one end is towards positive pole for one end of positively charged.If change direction of an electric field, polarity is divided The orientation of son also changes therewith, if electric field alternately changes direction rapidly, polar molecule is also with promptly swinging.Due to dividing Interaction between the warm-up movement of son and adjacent molecule, the rule that polar molecule changes with direction of an electric field and makees swings will be by dry Disturb and hinder, that is, create the effect of similar friction, make molecule obtain energy, and show in the form of heat, show as eating The temperature of product material raises, thus thawing treat thawed foodstuff.
Meanwhile, the frequency of extra electric field is higher, and the swing of molecule is faster, and the heat of generation is more；Extra electric field Electric-field intensity is bigger, and the amplitude of molecule is bigger, and the heat of generation is more.Food is produced in high frequency waves and microwave field The size of heat is also relevant with the species of material and composition, that is, relevant with the dielectric constant of material and angle of loss tangent.
Further, the present invention adopt high frequency waves in 1 to 50MHz, preferably high frequency waves scope in 10 to 20MHz scope, And the frequency range of microwave typically at (300MHz to 300GHz) although the frequency of microwave be higher than high frequency waves frequency, but by Frequency in fading depth and electromagnetic wave is inversely proportional to, and more preferably, the temperature of charge after high frequency waves defrosting is more for the defrosting effect of high frequency waves Uniformly, and the larger food that can thaw.
Electromagnetic wave through food surface internally irradiate when, increase with its penetration depth, the energy of electromagnetic wave decays rapidly, The depth capacity that electromagnetic wave is penetrated is referred to as penetration depth or fading depth, and fading depth becomes anti-with the frequency of electromagnetic wave Than.As shown in Table 1 and Table 2, when heating using microwave is thawed, because its depth that partly declines is less, the surface temperature of food and center temperature Degree difference is big, and foodstuff surface local thaws, and ice changes into water, because the loss coefficient difference of water and ice is very big, inhales in this part The microwave energy received is many, is easy for causing the superheating phenomenon of this part even to cure.Thaw vice versa for high frequency, it partly declines Depth is much larger than the depth that partly declines of microwave, and surface temperature and central temperature difference are little, and the loss coefficient difference of water and ice is also little, solution Temperature distribution uniform during jelly, is not in superheating phenomenon.So high frequency wave energy is thawed to thick big food, and after thawing Food quality higher.
Table 1 water and the loss coefficient of ice
Project High frequency waves (13.56MHZ) Microwave (915MHZ)
Ice (- 15 DEG C) 0.07 0.06
Water (15 DEG C) 0.63 2.7
Loss coefficient ratio About 9 times About 45 times
The depth that partly declines of table 2 beef
Further, because the frequency of high frequency waves is less than the frequency of microwave, fading depth is inversely proportional to the frequency of electromagnetic wave, Research shows that the penetration depth of high frequency waves is about microwave 5 again to 104 times, and the speed that therefore high frequency thaws faster, drops effectively The low possibility of microorganism pollution, improves the quality of the food after defrosting.Further, high frequency dispensing device course of defrosting In make to treat thawed foodstuff quickly through maximum ice crystal dissolving band, drip loss is less, is effectively guaranteed the food after defrosting new Fresh nutrition, improves the quality of food after thawing.
In one embodiment of the invention it is preferable that the material of the inwall of cavity 12 and door body is high frequency waves reflecting material Material, reflects to a plurality of wave beam 1602 entering cavity 12.
In this embodiment, the material of the inwall of cavity 12 and door body all adopts high frequency waves reflecting material, to entrance cavity 12 a plurality of wave beam 1602 is reflected.On the one hand, effectively prevent the leakage of high frequency waves；On the one hand, high frequency waves are reflected After form uniform electromagnetic wave, increased the quantity of electromagnetic wave, and then make all molecules of whole food all be subject to high frequency waves Effect, so as to the polarity of polar molecule occurs high frequency time change, makes the food temperature after defrosting uniformly, and quick-thawing is larger Food, effectively improves thawing rate, reduce thawing time, it is to avoid after after thawing, the loss of food nutrition is it is ensured that thaw The quality of food, improves the satisfaction that user uses.Further, the material of cavity and door body can also be that other high frequency waves are anti- Penetrate material.Further, the material stainless steel of cavity and door body.
In one embodiment of the invention it is preferable that also including：Temperature-detecting device (not shown), is arranged on In cavity 12, for temperature in real-time detection cavity 12；Controller (not shown), is connected with temperature-detecting device, uses When temperature reaches preset temperature in cavity 12, radio-frequency generator 16 is controlled to stop.
In this embodiment, by arranging temperature-detecting device in cavity 12, temperature in real-time detection cavity 12, in chamber When in body 12, temperature reaches preset temperature, the controller being connected with temperature-detecting device controls radio-frequency generator 16 to stop, and makes It is defrosted food to be heated by crossing, be maintained at the state of ice milk, it is to avoid long-time defrosting makes food local discolouration and curing Phenomenon, make to be defrosted food thawing uniformly, fresh Nutrient, it is to avoid food waste, in cavity 12, temperature reaches default temperature simultaneously When spending, radio-frequency generator 16 is controlled to stop, it is to avoid user forgets that closing switch makes high frequency occur 16 to work always, effectively protects Card is defrosted the quality of food, saving energy consumption, reduces defrosting cost, improves security, lifts Consumer's Experience.Further, high Frequency generator 16 is provided with activate switch 1612, controls the start and stop of radio-frequency generator 16, facilitates user to control high frequency to occur at any time The start and stop of device 16, easy to operate, meet the demand of different user, lift Consumer's Experience.
In one embodiment of the invention it is preferable that also including：Input unit (not shown), defeated for receiving The setting time entering；Time set (not shown), for carrying out timing according to the setting time, and is reaching the setting time When, to controller sending signal；Controller (not shown), is connected with time set, for receiving time set Signal when, control radio-frequency generator 16 stop.
In this embodiment, the setting time of input unit receives input, time set carries out timing according to the setting time, And when reaching the setting time, to the controller sending signal being connected with time set, controller is receiving time set Signal when, control radio-frequency generator 16 stop.Quit work by input setting time control radio-frequency generator 16, lifting is used The experience at family, makes food carry out being thawed according to the input of user, the participation of lifting user, improves user satisfaction, with When be effectively guaranteed the quality of food thawing, on the one hand, avoid time short food not thaw completely it is impossible to use；On the one hand, Avoid the long-time phenomenon thawed and make food local discolouration and curing, significantly reduce the possibility of microorganism pollution, enter Save energy consumption to one step, reduced defrosting cost, improve security.
In one embodiment of the invention it is preferable that also including：Input unit (not shown), defeated for receiving The setting time entering；Time set (not shown), for carrying out timing according to the setting time, and is reaching the setting time When, to controller sending signal；Controller (not shown), is connected with time set, for receiving time set Signal when, control radio-frequency generator 16 stop.
In this embodiment, the setting time of input unit receives input, time set carries out timing according to the setting time, And when reaching the setting time, to the controller sending signal being connected with time set, controller is receiving time set Signal when, control radio-frequency generator 16 stop.Further, temperature-detecting device is set in cavity 12 simultaneously, examines in real time Survey temperature in cavity 12, when temperature reaches preset temperature in cavity 12, the controller being connected with temperature-detecting device is controlled Radio-frequency generator 16 stops.On the one hand, in cavity 12, temperature reaches preset temperature, when the timing of time set is not up to arranged Between, the controller being connected with temperature-detecting device controls radio-frequency generator 16 to stop；On the one hand, the timing of time set reaches The setting time, in cavity 12, temperature is not up to preset temperature, and the controller being connected with time set controls radio-frequency generator 16 to stop Only；On the one hand, in cavity 12, temperature reaches preset temperature, and the timing of time set also reaches the setting time, with temperature detection dress Putting the controller being connected controls radio-frequency generator 16 to stop, and the controller being simultaneously connected with time set controls radio-frequency generator 16 stoppings.Radio-frequency generator 16 is controlled by preset temperature and setting time two ways, effectively by user simultaneously Active control and automatically controlling of device be combined together, improve user experience it is ensured that thaw after food quality, Avoiding long-time defrosting makes the overheated phenomenon producing local discolouration and curing of food, makes to be defrosted food thawing uniformly, fresh Nutrition, it is to avoid food waste, saving energy consumption effectively, reduces defrosting cost, further increasing security, lift user's body Test, meet the demand of different structure and difference in functionality meanwhile, applied widely, improve user satisfaction, lift user's body Test.
In one embodiment of the invention it is preferable that input unit is additionally operable to the food weight of receives input；And control Device processed, determines the setting time according to food weight, and makes timing means start timing according to the setting time.
In this embodiment, the food weight of input unit also receives input, controller determines setting according to food weight Time, and make timing means start timing according to the setting time.Control thawing time by inputting food weight, it is to avoid use Family cannot determine that setting time or the setting time of input are mismatched with the thawing time treating the real needs of thawed foodstuff, makes to treat The time that thawed foodstuff is defrosted is more accurate, user-friendly, and then ensure that the quality after food thawing, improves effect of thawing Rate, further, the weight due to treating thawed foodstuff is easier to determine for user, and then user-friendly, improves and uses The satisfaction at family, meets the demand of different user simultaneously, improves the experience of user, and the scope of application is more extensive.
In one embodiment of the invention it is preferable that also including：Weight sensor (not shown), is arranged on chamber In body 12, treat the weight of thawed foodstuff for measurement, and testing result is sent to controller；And controller, according to food Weight determines the setting time, and makes timing means start timing according to the setting time.
In this embodiment, the weight of thawed foodstuff is treated in the weight sensor measurement being arranged in cavity 12, and will detect Result sends to controller, and controller determines the setting time according to food weight, and so that timing means is started according to the setting time Timing.The setting time is controlled by the weight that thawed foodstuff is treated in weight sensor measurement, eliminates the input of setting time, letter Change user operation, lifted Consumer's Experience, improved user satisfaction, further, made the setting time with to treat thawed foodstuff real Required thawing time more mates, and more accurately, is effectively improved defrosting efficiency it is ensured that quality after food thawing, meets The demand of different user, the scope of application is more extensive.
In one embodiment of the invention it is preferable that display module (not shown), it is arranged in door body, with control Circuit processed is connected, for showing setting time, preset temperature and food weight.
In this embodiment, door body is provided with display module, is connected with control circuit, for show the setting time, Preset temperature and food weight.Setting time, preset temperature and food weight are shown by display module, makes the data of input more Intuitively, more accurately it is shown in door body, facilitate user to observe and confirm, lift Consumer's Experience.Further, on display module It is provided with button, be connected with control circuit, for inputting setting time, preset temperature and food weight, user-friendly, Lifting Consumer's Experience, lifts user satisfaction.As shown in Figure 3 and Figure 4, further, can there are one or more buttons.Enter one Step, the corresponding unit of each button is different, for example, display module is provided with two buttons, on the one hand, the first button pair The unit answered is minute, and the first button is often pressed next time, accumulated one minute, and the corresponding unit of the second button is 10 seconds, the Two buttons are often pressed next time, add up 10 seconds, determine thawing time according to the number of times that the first button and the second button are pressed, than As, the first button is pressed 2 times, and the second button is pressed 3 times, then thawing time be 2 points 30 seconds, and aobvious on display module Show.On the one hand, the corresponding unit of the first button is kg, and the first button is often pressed next time, accumulates 1kg, and the second button corresponds to Unit be 0.1kg, the second button often press next time, cumulative 0.1kg, the number of times being pressed according to the first button and the second button Determine the weight treating thawed foodstuff, such as, the first button is pressed 2 times, and the second button is pressed 3 times, then treat thawed foodstuff weight Measure as 2.3kg, and show on display module.Further, display module can show current thawed state, for example, show Total thawing time, and remaining thawing time, facilitate user to check current thawed state, make user's reasonable arrangement time, carry Rise Consumer's Experience, improve user satisfaction.
In one embodiment of the invention it is preferable that radio-frequency generator 16 includes：High frequency electric source 1604；Magnetron 1606, connect paramount frequency power 1604, produce high-frequency electromagnetic oscillation；Waveguide 1608, is connected with magnetron 1606, waveguide 1608 Excitation by high-frequency electromagnetic oscillation produces high frequency waves；And power supply 1610, it is that radio-frequency generator 16 is powered.
In this embodiment, radio-frequency generator 16 includes high frequency electric source 1604, magnetron 1606, waveguide 1608 and power supply 1610, wherein, power supply 1610 is powered for radio-frequency generator 16, and magnetron 1606 is connected with high frequency electric source 1604, produces high-frequency electrical Magnetic oscillation, the waveguide 1608 that is connected with magnetron 1606 is subject to the excitation of high-frequency electromagnetic oscillation to produce high frequency waves.By high-frequency electrical Source 1604 works, and magnetron 1606 produces high-frequency electromagnetic oscillation, and the energy of magnetron 1606 output enters row energization to waveguide 1608, Produce high frequency waves, the coupled window of high frequency waves 14 of 1608 generations of waveguide enters into defrosting room, and 14 mouthfuls of meetings of coupling window send a plurality of (such as wave beam 1, wave beam 2, wave beam 3 or even wave beam n), these wave beam 1602 power are essentially identical, the entering of wave beam 1602 for wave beam 1602 Ejected wave forms standing wave with back wave, and in the indoor roundtrip that thaws, frozen food is thawed.Acted on by high frequency waves In being defrosted food, the molecule of whole food is made all to be subject to the effect of high frequency waves so as to the polarity of polar molecule occurs high frequency time Change, thaws so that be defrosted food and be inside and outside heated simultaneously, accelerates thawing rate, improve defrosting efficiency, reduce micro- life The possibility of thing pollution, uniformly, meanwhile, food passes through maximum ice crystal dissolving band and quickly dissolves the food temperature after making to be defrosted, Reduce drip loss, efficiently avoid the loss being defrosted food nutrition, improve the quality of food after defrosting, lift user Experience, and larger food can be thawed, improve user satisfaction.
In one embodiment of the invention it is preferable that also including：Door body switchs 18 detection means, for detecting When door body is opened, send cut-off signal to controller, when door body closing is detected, send Continuity signal to controller；Control After device receives cut-off signal, deenergization 1610, and when receiving Continuity signal, switch on power 1610.
In this embodiment, door body switchs 18 detection means when door body is detected and opening, and sends to controller and disconnects letter Number, when door body closing is detected, send Continuity signal to controller；After controller receives cut-off signal, deenergization 1610, when receiving Continuity signal, switch on power 1610.On the one hand, when door body is opened, controller sends cut-off signal, high Frequency generator 16 does not work；On the one hand, when door body closes, controller sends Continuity signal, and radio-frequency generator 16 works, effectively The security that improves, reduce the energy consumption of defrosting, save understanding and be frozen into this, meanwhile, door body switch 18 and radio-frequency generator 16 switch is cascaded, it is to avoid user needs to close radio-frequency generator 16 before enabling, simplifies operating procedure, uses Convenient, lift Consumer's Experience, improve user satisfaction.As described in Figure 5, further, multi-door refrigerator 100 is provided with high-frequency solution Freeze prefecture, thawing apparatus 1 is placed in high frequency defrosting prefecture, on the one hand, open high frequency defrosting prefecture door when, radio-frequency generator 16 quit work, on the one hand, during the door in closing high frequency defrosting prefecture, radio-frequency generator 16 works, and effectively raises security, Easy to use, lift Consumer's Experience.
In one embodiment of the invention it is preferable that also including：Direct-cooled evaporimeter (not shown), is arranged on chamber Between the postnotum of body 12 and foaming layer, for making the temperature in cavity 12 be maintained in the range of set point of temperature.
In this embodiment, by the direct-cooled evaporimeter in direct cooling refrigerator be arranged on the postnotum of cavity 12 and foaming layer it Between, so that the temperature in cavity 12 is maintained in the range of set point of temperature, be effectively guaranteed the stability of temperature in cavity 12, due to Radio-frequency generator 16 quits work according to cavity 12 temperature automatic control, it is to avoid be defrosted food thawing overlong time, is added by crossing Thermal conductivity cause food local discolouration and the phenomenon of curing, and then ensure that the quality of thawed foodstuff, make the fresh battalion of the food after defrosting Support, lift user satisfaction.
In one embodiment of the invention it is preferable that also including：Air inlet 1202, is arranged on the top of cavity 12；With And return air inlet 1204, it is arranged on the bottom of cavity 12, air inlet 1202 and air outlet are used for making the temperature in cavity 12 be maintained at In the range of set point of temperature.
In this embodiment, the air inlet 1202 of wind cooling refrigerator is arranged on the top of cavity 12, return air inlet 1204 is arranged In the bottom of cavity 12, air inlet 1202 and air outlet are used for making the temperature in cavity 12 be maintained in the range of set point of temperature, have Ensure that to effect the stability of temperature in cavity 12.Further, air inlet 1202 is arranged on the right back upper place of cavity 12, return air Mouth 1204 is arranged on the left front bottom of cavity 12, makes flowing in cavity 12 for the wind more reasonable, is conducive in cavity 12 Temperature is maintained in the range of set point of temperature, makes the temperature in cavity 12 more stable.Further, the wind in cavity 12 is in air inlet Flow between 1202 and return air inlet 1204, accelerate the defrosting of food, effectively raise defrosting efficiency, reduce defrosting cost. Because radio-frequency generator 16 stops according to cavity 12 temperature automatic control, it is to avoid be defrosted food thawing overlong time, added by crossing Thermal conductivity cause food local discolouration and the phenomenon of curing, and then ensure that the quality of thawed foodstuff, make the fresh battalion of the food after defrosting Support, lift user satisfaction.
In one embodiment of the invention it is preferable that set point of temperature is within the temperature range of -5 DEG C to -1 DEG C.
In this embodiment it is stipulated that temperature is within the temperature range of -5 DEG C to -1 DEG C, it is consistent with the ice milk area temperature of refrigerator Close, one side cavity 12 is defrosted food for placement, on the one hand, cavity 12, as ice milk area, is deposited and do not needed to protect for a long time The food deposited, meets user's different demands, lifts Consumer's Experience.Further, because high frequency generating apparatus is to food thawing When, the temperature change of cavity 12 is affected less, make, in the case that cavity 12 has deposited ice milk food, to start high frequency and fill Put and treat that thawed foodstuff thaws in cavity 12, reach consistent with the temperature of original ice milk food stop thawing, effectively save Save memory space, reduced energy consumption, lifted Consumer's Experience, improve user satisfaction.Further, when microwave thawing, freeze Product surface somewhere ice-out Cheng Shui, will make the temperature at this raise rapidly, and during radio-frequency generator 16 work, with thawed material The rising of product temperature degree, quickly, high frequency voltage is gradually difficult to act on and is defrosted article for dielectric constant increase, and test shows -5 DEG C of left sides Right thawing rate reduces, and when more than -2 to -3 DEG C, high-frequency induction loses thaw effects, and that is, high-frequency induction can automatically control defrosting Terminal, defrosting outlet temperature now is consistent with the ice milk area temperature of refrigerator, therefore, significantly reduces defrosting energy consumption, Save energy, and then reduce defrosting cost, improve user satisfaction.
The defreezing method that the embodiment of second aspect present invention provides, including：Radio-frequency generator 16 produces high frequency waves；High frequency Ripple enters described cavity 12 through the coupler being arranged on the side wall of cavity 12, sends a plurality of wave beam 1602；A plurality of wave beam 1602 penetrate treating on thawed foodstuff in cavity 12, are thawed with treating thawed foodstuff.
The defreezing method that second aspect present invention provides, radio-frequency generator 16 produces high frequency waves, and high frequency waves are through cavity 12 side Coupling window 14 on wall enters into cavity 12, sends a plurality of wave beam 1602, and a plurality of wave beam 1602 penetrates treating in placement cavity 12 A plurality of wave beam 1602 on solution food is treated thawed foodstuff and is thawed.Acted on by high frequency waves and treat thawed foodstuff, make food All molecules be all subject to high frequency waves effect so as to polar molecule polarity occur high frequency time change so that be defrosted eat Thing is inside and outside heated simultaneously and thaws, and makes the food temperature after defrosting uniformly, thawing rate is fast, reduces the possibility of microorganism pollution Property, meanwhile, treat that thawed foodstuff is quickly dissolved by maximum ice crystal dissolving band, reduce drip loss, after efficiently avoid defrosting The loss of food nutrition, the quality of food after lifting defrosting, meanwhile, can thaw larger food, lifts Consumer's Experience.
In one embodiment of the invention it is preferable that also including：When in cavity 12, temperature reaches preset temperature, control Radio-frequency generator 16 processed stops producing high frequency waves.
In this embodiment, when temperature reaches preset temperature in cavity 12, radio-frequency generator 16 is controlled to stop producing height Frequency ripple.By the comparison of the temperature of cavity 12 and preset temperature, make radio-frequency generator 16 stop producing high frequency waves, effectively ensure It is defrosted food to be heated by crossing, is maintained at the state of ice milk, it is to avoid long-time defrosting makes food local discolouration and ripe The phenomenon changed, makes the food thawing after defrosting uniformly, fresh Nutrient, it is to avoid food waste, simultaneously in cavity 12 temperature reach pre- If during temperature, radio-frequency generator 16 is controlled to stop, it is to avoid user forgets closing switch, and radio-frequency generator 16 works always, has Effect ground ensures to be defrosted the quality of food, saving energy consumption, reduces defrosting cost, improves security, lifts Consumer's Experience.
Fig. 6 shows the schematic flow sheet of defreezing method according to an embodiment of the invention；
As shown in fig. 6, the flow process of defreezing method according to an embodiment of the invention includes,
Step 602, whether detection door body closes；
Step 6022, when door body is detected and being not turned off, cuts off high frequency electric source 1604；
Step 604, when door body closing is detected, radio-frequency generator 16 activate switch 1612 closes；Otherwise, execution step 6022；
Step 606, when radio-frequency generator 16 activate switch 1612 closure is that radio-frequency generator 16 works；
Step 608, whether test chamber temperature reaches preset temperature；
Step 610, when cavity temperature reaches preset temperature, radio-frequency generator 16 activate switch 1612 disconnects automatically, no Then, execution step 606；
Step 612, defrosting pattern switchs to ice milk pattern automatically.
In this embodiment, detect whether door body closes by step 602, when detecting that door body is not turned off, by step 6022 cut-out high frequency electric sources 1604, are detecting radio-frequency generator 16 activate switch 1612 when door body is closed by step 6044 Closure, and worked by step 606 radio-frequency generator 16, otherwise, execution step 6022 cuts off high frequency electric source 1604.Effectively carry High security, reduces the energy consumption of defrosting, saves understanding and be frozen into this, avoid simultaneously user need to close before enabling high Frequency generator 1616, simplifies operating procedure, easy to use, lifts Consumer's Experience, improves user satisfaction.By step 608 Whether test chamber temperature reaches preset temperature, when cavity temperature reaches preset temperature, by step 610 radio-frequency generator 16 Activate switch 1612 disconnects automatically, and the pattern of step 612 defrosting simultaneously switchs to ice milk pattern automatically, when cavity temperature is not up to default During temperature, continue executing with step 606 radio-frequency generator 16 and work.By the comparison of the temperature of cavity 12 and preset temperature, make height Frequency generator 16 stop produce high frequency waves, be effectively guaranteed be defrosted food will not by cross be heated, be maintained at the state of ice milk, Avoid the long-time phenomenon thawed and make food local discolouration and curing, make the food thawing after defrosting uniformly, fresh Nutrient, keep away Exempt from food waste, lift Consumer's Experience.Further, defrosting pattern switchs to ice milk pattern, can store food with short-term, save energy Consumption, lifts Consumer's Experience.
In one embodiment of the invention it is preferable that also including：Produce the high frequency waves scheduled time in radio-frequency generator 16 Afterwards, radio-frequency generator 16 is controlled to stop producing high frequency waves, the wherein food by user input or according to user input for the scheduled time Weight is determining.
In this embodiment, after radio-frequency generator 16 produces the high frequency waves scheduled time, radio-frequency generator 1616 is controlled to stop Only produce high frequency waves.Stop sending high frequency waves, the experience of lifting user by arranging time control radio-frequency generator 16, make food Thawed according to the selection of user, improve user satisfaction, simultaneously effective ensure that the quality of food thawing, on the one hand, Time short food is avoided not thaw completely it is impossible to use；On the one hand, it is to avoid long-time defrosting makes food local discolouration and curing Phenomenon, significantly reduce the possibility of microorganism pollution, further saved energy consumption, reduce defrosting cost, improve Security.Further, the scheduled time determines by user input or according to the food weight of user input, improves user Participation, meet the demand of different user, lift Consumer's Experience, user-friendly.Further, by inputting food weight Amount to be controlling the scheduled time, it is to avoid user cannot determine setting time of setting time or input with to treat thawed foodstuff real The thawing time needing mismatches, and makes to treat that the time that thawed foodstuff is defrosted is more accurate, user-friendly, and then ensure that food Quality after thing defrosting, improves defrosting efficiency.Further, because the weight treating thawed foodstuff is easier really for user Fixed and then user-friendly, improve the satisfaction of user, meet the demand of different user simultaneously, improve the body of user Test, the scope of application is more extensive.
Fig. 7 shows the schematic flow sheet of defreezing method according to an embodiment of the invention；
As shown in fig. 7, the flow process of defreezing method according to an embodiment of the invention includes,
Step 702, whether detection door body closes；
Step 7022, when door body is detected and being not turned off, cuts off high frequency electric source 1604；
Step 704, when door body closing is detected, radio-frequency generator 16 activate switch 1612 closes；Otherwise, execution step 7022；
Step 706, when radio-frequency generator 16 activate switch 1612 closure is that radio-frequency generator 16 works；
Step 708, whether the time that detection radio-frequency generator 16 produces high frequency waves reaches the setting time；
Step 710, when the time producing high frequency waves in radio-frequency generator 16 reaches the setting time, radio-frequency generator 16 starts Switch 1612 disconnects automatically, otherwise, execution step 706；
Step 712, defrosting pattern switchs to ice milk pattern automatically.
In this embodiment, detect whether door body closes by step 702, when detecting that door body is not turned off, by step 7022 cut-out high frequency electric sources 1604, when door body is detected and cutting out, by step 704 by radio-frequency generator 16 activate switch 1612 Closure, and worked by step 706 radio-frequency generator 16, otherwise, execution step 7022 cuts off high frequency electric source 1604.Effectively carry High security, reduces the energy consumption of defrosting, saves understanding and be frozen into this, avoid simultaneously user need to close before enabling high Frequency generator 1616, simplifies operating procedure, easy to use, lifts Consumer's Experience, improves user satisfaction.By step 708 Whether the time that detection radio-frequency generator 16 produces high frequency waves reaches the setting time, when radio-frequency generator 16 produces high frequency waves Between when reaching the setting time, automatically disconnected by step 710 radio-frequency generator 16 activate switch 1612, step 712 is thawed simultaneously Pattern switchs to ice milk pattern automatically, when the time producing high frequency waves in radio-frequency generator 16 is not up to the setting time, continues executing with Step 706 radio-frequency generator 16 works.Quit work by input setting time control radio-frequency generator 1616, lifting user's Experience, makes food carry out being thawed according to the input of user, the participation of lifting user, improves user satisfaction, has simultaneously Ensure that to effect the quality of food thawing, on the one hand, avoid time short food not thaw completely it is impossible to use；On the one hand, it is to avoid Long-time defrosting makes food local discolouration and the phenomenon of curing, significantly reduces the possibility of microorganism pollution, further Saved energy consumption, reduce defrosting cost, improve security.Further, defrosting pattern switchs to ice milk pattern, can be short Phase stores food, saving energy consumption, lifts Consumer's Experience.
Embodiment is it is also proposed that a kind of refrigerator in accordance with a further aspect of the present invention, including described in any of the above-described technical scheme Thawing apparatus.
The refrigerator that the embodiment of further aspect of the present invention provides, because including the defrosting dress described in any of the above-described technical scheme Put, thus, high frequency waves are produced by radio-frequency generator 16, high frequency waves enter into cavity 12 through the coupling window 14 on cavity 12 side wall After send a plurality of wave beam 1602, a plurality of wave beam 1602 penetrated on the food to be solved placing in cavity 12 is treated thawed foodstuff and is carried out Thaw.Acted on by high frequency waves and be defrosted food, make all molecules of food all be subject to the effect of high frequency waves so as to polarity is divided There is high frequency time change in the polarity of son, thaw so that be defrosted food and be inside and outside heated simultaneously, make the food temperature after defrosting Uniformly, thawing rate is fast, reduces the possibility of microorganism pollution, meanwhile, treats that thawed foodstuff is fast by maximum ice crystal dissolving band Instant solution, reduces drip loss, efficiently avoid the loss of food nutrition after defrosting, the quality of food after lifting defrosting, with When, can thaw larger food, lifts Consumer's Experience.
In sum, the thawing apparatus of the offer of the present invention, defreezing method and refrigerator, produces height by radio-frequency generator 16 Frequency ripple, high frequency waves enter into through the coupling window 14 on cavity 12 side wall and send a plurality of wave beam 1602 after cavity 12, penetrate in placed cavity The a plurality of wave beam 1602 on food to be solved in body 12 is treated thawed foodstuff and is thawed.Acted on by high frequency waves and be defrosted eating Thing, makes all molecules of food all be subject to the effect of high frequency waves so as to the polarity of polar molecule occurs high frequency time to change, so that It is defrosted food and is inside and outside heated defrosting simultaneously, make the food temperature after defrosting uniformly, thawing rate is fast, reduce microorganism dirty The possibility of dye, meanwhile, treats that thawed foodstuff is quickly dissolved by maximum ice crystal dissolving band, reduces drip loss, is effectively prevented from The loss of food nutrition after thawing, lifting thaw after food quality, meanwhile, can thaw larger food, lifts user Experience.
In the present invention, term " multiple " then refers to two or more, limits unless otherwise clear and definite.Term " peace Dress ", " being connected ", " connection ", the term such as " fixation " all should be interpreted broadly, for example, " connection " can be fixedly connected it is also possible to It is to be detachably connected, or be integrally connected；" being connected " can be joined directly together it is also possible to be indirectly connected to by intermediary.Right For those of ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this specification, the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. Mean that the specific features with reference to this embodiment or example description, structure, material or feature are contained at least one reality of the present invention Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term Example.And, the specific features of description, structure, material or feature can in any one or more embodiments or example with Suitable mode combines.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made, Equivalent, improvement etc., should be included within the scope of the present invention.

Claims (17)

1. a kind of thawing apparatus is it is characterised in that include：
Cavity, treats thawed foodstuff for placing；
Coupling window, is arranged on the side wall of described cavity；
Radio-frequency generator, for producing high frequency waves, described high frequency waves enter into through described coupling window send after described cavity a plurality of Wave beam, penetrates and treats that thawed foodstuff thaws in the described described a plurality of wave beam treated on thawed foodstuff to described.
2. thawing apparatus according to claim 1 is it is characterised in that the material of the inwall of described cavity and door body is high frequency Wave reflection material, reflects to a plurality of wave beam entering described cavity.
3. thawing apparatus according to claim 1 and 2 is it is characterised in that also include：
Temperature-detecting device, is arranged in described cavity, for real-time detection cavity inner temperature；
Controller, is connected with described temperature-detecting device, for when described cavity inner temperature reaches preset temperature, controlling institute State radio-frequency generator to stop.
4. thawing apparatus according to claim 1 and 2 is it is characterised in that also include：
Input unit, for the setting time of receives input；
Time set, for carrying out timing according to the described setting time, and when reaching the described setting time, to described controller Sending signal；
Controller, is connected with described time set, for when receiving the signal of described time set, controlling described high frequency Generator stops.
5. thawing apparatus according to claim 3 is it is characterised in that also include：
Input unit, for the setting time of receives input；
Time set, for carrying out timing according to the described setting time, and when reaching the described setting time, to described controller Sending signal；
Controller, is connected with described time set, for when receiving the signal of described time set, controlling described high frequency Generator stops.
6. the thawing apparatus according to claim 4 or 5 is it is characterised in that described input unit is additionally operable to receives input Food weight；And
Described controller, determines the described setting time according to described food weight, and makes described timing means according to described setting Time starts timing.
7. the thawing apparatus according to claim 4 or 5 is it is characterised in that also include：
Weight sensor, is arranged in described cavity, for treating the weight of thawed foodstuff described in measuring, and testing result is sent To described controller；And
Described controller, determines the described setting time according to described food weight, and makes described timing means according to described setting Time starts timing.
8. thawing apparatus according to any one of claim 1 to 7 it is characterised in that
Display module, is arranged in described door body, is connected with described control circuit, for showing the described setting time, presetting Temperature and food weight.
9. thawing apparatus according to any one of claim 1 to 8 is it is characterised in that described radio-frequency generator includes：
High frequency electric source；
Magnetron, connects to described high frequency electric source, produces high-frequency electromagnetic oscillation；
Waveguide, is connected with described magnetron, and described waveguide is subject to the excitation of described high-frequency electromagnetic oscillation to produce high frequency waves；And
Power supply, is that described radio-frequency generator is powered.
10. thawing apparatus according to claim 9 is it is characterised in that also include：
Door body closing detecting apparatus, for when described door body is detected and opening, sending cut-off signal to described controller, in inspection When measuring described door body closing, send Continuity signal to described controller；
After described controller receives described cut-off signal, disconnect described power supply, and when receiving Continuity signal, connect described Power supply.
11. thawing apparatus according to any one of claim 1 to 8 are it is characterised in that also include：
Direct-cooled evaporimeter, is arranged between postnotum and the foaming layer of described cavity, for making the temperature in described cavity keep In the range of set point of temperature.
12. thawing apparatus according to any one of claim 1 to 8 are it is characterised in that also include：
Air inlet, is arranged on the top of described cavity；And
Return air inlet, is arranged on the bottom of described cavity,
Described air inlet and described return air inlet are used for making the temperature in described cavity be maintained in the range of set point of temperature.
13. thawing apparatus according to claim 11 or 12 are it is characterised in that described set point of temperature is at -5 DEG C to -1 DEG C In temperature range.
A kind of 14. defreezing methods are it is characterised in that include：
Radio-frequency generator produces high frequency waves；
Described high frequency waves enter described cavity through the coupler being arranged on the side wall of cavity, send a plurality of wave beam；
Described a plurality of wave beam penetrates treating on thawed foodstuff in described cavity, to treat that thawed foodstuff thaws to described.
15. defreezing methods according to claim 14 are it is characterised in that also include：
When described cavity inner temperature reaches preset temperature, described radio-frequency generator is controlled to stop producing described high frequency waves.
16. defreezing methods according to claims 14 or 15 are it is characterised in that also include：
After described radio-frequency generator produces the described high frequency waves scheduled time, described radio-frequency generator is controlled to stop producing described height Frequency ripple,
The wherein said scheduled time determines by user input or according to the food weight of user input.
A kind of 17. refrigerators are it is characterised in that include the thawing apparatus as any one of claim 1 to 13.
CN201610762222.6A 2016-08-29 2016-08-29 Unfreezing device, unfreezing method and refrigerator Pending CN106403482A (en)

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CN113847777A (en) * 2020-06-28 2021-12-28 青岛海尔电冰箱有限公司 Thawing method for thawing apparatus, and refrigerating/freezing apparatus
CN114304255A (en) * 2021-12-21 2022-04-12 宁波海通食品科技有限公司 Cooperative water loss control method for middle-term ex-warehouse thawing of frozen vegetable peppers

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CN107873817A (en) * 2017-10-12 2018-04-06 佛山汇众森泰科技有限公司 A kind of aquatic products thawing apparatus
CN109990552A (en) * 2017-12-29 2019-07-09 青岛海尔股份有限公司 Refrigerator
CN110553460A (en) * 2018-06-01 2019-12-10 博西华电器（江苏）有限公司 Thawing device, refrigerator and refrigerator working method
CN110651946A (en) * 2018-06-29 2020-01-07 夏普株式会社 Thawing device and thawing method
WO2020156333A1 (en) * 2019-01-28 2020-08-06 青岛海尔特种电冰箱有限公司 Heating device and refrigerator having same
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CN111141102A (en) * 2020-01-08 2020-05-12 珠海格力电器股份有限公司 Thawing device, thawing control method and refrigerator
CN113847777A (en) * 2020-06-28 2021-12-28 青岛海尔电冰箱有限公司 Thawing method for thawing apparatus, and refrigerating/freezing apparatus
CN113847777B (en) * 2020-06-28 2023-02-17 青岛海尔电冰箱有限公司 Thawing method for thawing apparatus, and refrigerating/freezing apparatus
CN114304255A (en) * 2021-12-21 2022-04-12 宁波海通食品科技有限公司 Cooperative water loss control method for middle-term ex-warehouse thawing of frozen vegetable peppers

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Application publication date: 20170215