CN109990554A - Thawing apparatus and refrigerator with the thawing apparatus - Google Patents
Thawing apparatus and refrigerator with the thawing apparatus Download PDFInfo
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- CN109990554A CN109990554A CN201711489619.3A CN201711489619A CN109990554A CN 109990554 A CN109990554 A CN 109990554A CN 201711489619 A CN201711489619 A CN 201711489619A CN 109990554 A CN109990554 A CN 109990554A
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- module
- thawing apparatus
- radio frequency
- radio
- processed
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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
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
Abstract
The present invention provides a kind of thawing apparatus.The thawing apparatus includes the cylinder for defining the defrosting chamber with forward opening, the device door body for being opened and closed defrosting chamber at the forward opening of defrosting chamber is arranged in, the radio-frequency antenna that the radio frequency for generating radiofrequency signal occurs module and is arranged at defrosting chamber bottom.Radio-frequency antenna is set as being electrically connected with radio frequency generation module, and the rf wave that the radiofrequency signal that module generates generates corresponding frequencies in defrosting chamber, and the indoor object to be processed of the chamber that thaws occurs according to radio frequency.The present invention also provides a kind of refrigerators with the thawing apparatus.Radio-frequency antenna is horizontally disposed at the bottom wall of defrosting chamber by the present invention, so that thawing apparatus is more beautiful.
Description
Technical field
The present invention relates to food defrosting fields, more particularly to a kind of thawing apparatus and with the refrigerator of the thawing apparatus.
Background technique
During freezing, the quality of food is kept food, however the food freezed is before processing or is edible
It needs to thaw.For the ease of user's freezing and thawed foodstuff, the prior art in refrigerator generally by being arranged heating device or micro-
Wave apparatus carrys out thawed foodstuff.
However, generally requiring longer thawing time by heating device come thawed foodstuff, and thawing time and temperature are not
It easily grasps, be easy to cause moisture evaporation and the juice loss of food, the quality of food is made to incur loss；It is solved by microwave device
Freeze food, speed is fast, high-efficient, so the nutrient component damages of food are very low, but due to microwave to water and ice penetrate and
Absorption has difference, and the inner material of food is unevenly distributed, and the energy that the region melted absorbs is more, and it is uneven to be also easy to produce defrosting
The problem of uniform hot-spot.Comprehensively consider, needs one kind that there is high defrosting efficiency in design, thaws uniformly and can guarantee and eat
The thawing apparatus and refrigerator of article matter.
Summary of the invention
One purpose of first aspect present invention is to provide for a kind of thawing apparatus of beauty.
First aspect present invention one is further objective is that will prevent object to be processed from excessively being thawed.
One purpose of second aspect of the present invention is to provide for a kind of refrigerator with the thawing apparatus.
Particularly, according to the first aspect of the invention, a kind of thawing apparatus is provided, comprising:
Cylinder is surrounded by top plate and bottom plate, back plate and two opposite lateral side plates and defines the solution with forward opening
Freeze chamber, the defrosting chamber is for placing object to be processed；
Device door body is set at the forward opening of the defrosting chamber, for being opened and closed the defrosting chamber；
Module occurs for radio frequency, is configured to generate radiofrequency signal；With
Radio-frequency antenna is set in the defrosting chamber, and is set as being electrically connected with radio frequency generation module, with basis
The radiofrequency signal generates the rf wave of corresponding frequencies in the defrosting chamber, and the defrosting chamber that thaws is indoor to be processed
Object；Wherein
The radio-frequency antenna horizontally is arranged at the bottom wall of the defrosting chamber, to improve the beauty of the thawing apparatus
Property.
Optionally, the thawing apparatus further include:
Detection module, is configured to detect the incidence wave signal of the radio-frequency antenna and reflection wave signal, and according to it is described enter
The voltage and current of the voltage and current of ejected wave signal and the reflection wave signal calculates the dielectric coefficient of object to be processed
Rate of change；And the radio frequency occurs module and is configured that
When the rate of change of the dielectric coefficient of object to be processed is more than or equal to first rate threshold value, operating power is reduced
30%~40%, to prevent object to be processed from excessively being thawed；And/or
When the rate of change of the dielectric coefficient of object to be processed drops below or equal to the second rate-valve value, stop working.
Optionally, the thawing apparatus further include:
Support frame, including horizontally extending horizontal segment, the horizontal segment be set as with after the defrosting chamber
Wall is fixedly connected；And
The detection module is set on the horizontal segment.
Optionally, support frame as described above further include:
Vertical section is set as extending straight up from the front end of the horizontal segment, and solid with the roof of the defrosting chamber
Fixed connection, to improve the stability of support frame as described above.
Optionally, the outside that module is set to the cylinder occurs for the radio frequency, dissipates in order to which module occurs for the radio frequency
Heat.
Optionally, the outer wall of the back plate has the cylinder Wiring port being electrically connected with the radio-frequency antenna；
Module, which occurs, for the radio frequency has the radio-frequency connections port being connected electrically；And the thawing apparatus further include:
Electrical wiring, two wire terminals being electrically connected including conducting wire and respectively with the both ends of the conducting wire, described two electricity
Line terminals are set as being electrically connected with the cylinder Wiring port and the radio-frequency connections port respectively, in order to defrosting dress
The installation and storage set.
According to the second aspect of the invention, a kind of refrigerator is provided, the cabinet including defining at least one storage room
With the thawing apparatus of any description above, the thawing apparatus is set in the storage room.
Optionally, the outside that module is set to the foaming layer of the cabinet occurs for the radio frequency, in order to radio frequency hair
Raw module heat dissipating.
Optionally, the conducting wire is preset in the foaming layer of the cabinet, and described two wire terminals are individually fixed in
The outside of the inner wall of the storage room and the cabinet；And
The cylinder is set as to slide along the front-rear direction of the refrigerator and makes the cylinder Wiring port and be fixed on
The wire terminal of the storage room inner wall is electrically connected, in order to the installation of the thawing apparatus.
Optionally, the cylinder has at least one guide pad to extend back from its back plate；And
The rear wall of the storage room accordingly offers guide groove, and the guide pad is set as can be before the refrigerator
Rear direction slides into the guide groove, and docks the cylinder Wiring port with corresponding wire terminal, in order to the cylinder
Installation, avoid the Wiring port and the wire terminal from damaging；Wherein
Size of the guide pad on the front-rear direction of the refrigerator is greater than the electricity for being fixed on the storage room inner wall
Size of the line terminals on the front-rear direction of the refrigerator.
The present invention particularly radio-frequency antenna is arranged at the bottom wall of defrosting chamber, can avoid solving because of radio-frequency antenna setting
Freeze the roof of chamber and increase the thickness of the top side plate of cylinder, and then improves the aesthetics of thawing apparatus.
Further, the present invention by detection radio-frequency antenna incidence wave signal and reflection wave signal, be computed obtain to
The rate of change of the dielectric coefficient of processed material occupies little space and at low cost to judge the defrosting progress of object to be processed, especially suitable
For the thawing apparatus in refrigerator.Before making the present invention, those skilled in the art it is believed that when object to be processed temperature compared with
When high (temperature of object i.e. to be processed is more than or equal to -7 DEG C), fuel factor can significantly decay, thus object to be processed will not be decomposed by crossing
Freeze.However actual conditions are really not so, usual radio frequency defrosting power is larger, 100W is greater than, when temperature of object to be processed itself
When spending higher, object to be processed is easily excessively thawed.Present inventor creatively recognizes, when the temperature of object to be processed
When spending higher, the operating power that module occurs for radio frequency is reduced by 30%~40%, it is excessive that object to be processed can be effectively prevented
It thaws.
Further, whether the present invention judges to thaw and complete by the rate of change of the dielectric coefficient of object to be processed, compares
Whether completed in judging to thaw by sensing the temperature of object to be processed in the prior art, it is more accurate to judge, can further prevent
Only object to be processed is excessively thawed, and test shows the object to be processed to be thawed by thawing apparatus of the invention, is thawed when completing
Temperature is generally -4~-2 DEG C, can avoid thawing when object to be processed is meat and generating watery blood.
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 cross sectional views of thawing apparatus according to an embodiment of the invention；
Fig. 2 is the rate of change curve graph of the dielectric coefficient of object to be processed according to an embodiment of the invention；
Fig. 3 is the schematic diagram of drawer in Fig. 1；
Fig. 4 is the schematic explosive view of drawer in Fig. 3；
Fig. 5 is the schematic cross sectional views of refrigerator according to an embodiment of the invention；
Fig. 6 is the schematic diagram of compressor room according to an embodiment of the invention；
Fig. 7 is the schematic diagram of compressor room in accordance with another embodiment of the present invention；
Fig. 8 is the schematic diagram of refrigerator according to an embodiment of the invention；
Fig. 9 is the schematic diagram of refrigerator in accordance with another embodiment of the present invention；
Figure 10 is the flow chart of unfreezing control method according to an embodiment of the invention.
Specific embodiment
Fig. 1 is the schematic cross sectional views of thawing apparatus 100 according to an embodiment of the invention.Referring to Fig. 1, thawing apparatus
100 may include cylinder 110, device door body, radio frequency generation module 160 and radio-frequency antenna 130.Cylinder 110 may include top side plate,
Bottom side plate, back plate and two opposite lateral side plates, in can define the defrosting chamber 111 with forward opening, solve
Freeze chamber 111 for placing object to be processed.Device door body may be disposed at the forward opening of defrosting chamber 111, be used to open or
Close defrosting chamber 111.Device door body can be installed together by proper method and cylinder 110, for example, L.H.flapped door, R.H.flapped door,
Upward-acting door or sliding door.Radio frequency generation module 160 can be configured to generation radiofrequency signal and (refer generally to frequency in 300KHz~300GHz
Radiofrequency signal).Radio-frequency antenna 130 can by along thawing apparatus 100 transverse direction or front-rear direction be set side by side two it is flat
Board-like symmetrical dipole composition, and be fixed at the inner wall of defrosting chamber 111.Two symmetrical dipoles can pass through coaxial feeder and radio frequency
Module 160 occurs to be electrically connected, is generated in defrosting chamber 111 accordingly so that the radiofrequency signal that module 160 generates occurs according to radio frequency
The rf wave of parameter, and the object to be processed being placed in defrosting chamber 111 that thaws.In the present invention, the production of module 160 occurs for radio frequency
Raw radiofrequency signal is preferably a preset fixed frequency within the scope of 40.48~40.68MHz.It can be energy that module 160, which occurs, for radio frequency
The solid state power source of radiofrequency signal is enough generated, which can be precisely controlled by chip, realize frequency and/power tune
Section.Radio-frequency antenna 130 can be horizontally disposed at the bottom wall of defrosting chamber 111, be avoided because the setting of radio-frequency antenna 130 is being thawed
The roof of chamber 111 and the thickness for increasing the top side plate of cylinder 110, and then improve the aesthetics of thawing apparatus 100.
In some embodiments, thawing apparatus 100 may also include detection module 140.Detection module 140 can be configured to detect
The incidence wave signal and reflection wave signal of radio-frequency antenna 130, and believed according to the voltage and current of incidence wave signal and back wave
Number voltage and current, calculate radio frequency occur module 160 load impedance.In the present invention, detection module 140 can be penetrated from connection
The raw module 160 that takes place frequently and the incidence wave signal and reflection wave signal that radio-frequency antenna 130 is obtained at the coaxial feeder of transmitting antenna,
Incidence wave signal and reflection wave signal can be obtained directly from transmitting antenna.The calculation formula of load impedance is as follows:
SWR=Z2/Z1 (1)
Z1=U1/I1=R1+jX1 (2)
Z2=U2/I2=R2+jX2 (3)
In formula (1), (2), (3): SWR is standing-wave ratio；Z1For output impedance；Z2For load impedance；U1For incidence wave electricity
Pressure；I1For incidence wave electric current；R1For output resistance；X1For output reactance；U2For reflected wave voltage；I2For back wave electric current；R2For
Load resistance；X2For load reactance, (understandably, output impedance is that module 160 occurs for connection radio frequency to those skilled in the art
With the impedance of the coaxial feeder of transmitting antenna, load impedance is the impedance of object to be processed).
Thawing apparatus 100 may also include load compensation module.Load compensation module may include a compensating unit and for adjusting
Save the motor of the impedance of compensating unit.Compensating unit may be configured as connecting with object to be processed, i.e., module 160 occurs for radio frequency at this time
Load impedance be object to be processed impedance and compensating unit impedance and.Motor can be configured to controllably change rotation direction
The impedance of compensating unit is increased or reduced, and then increases or reduces the load impedance Z that module 160 occurs for radio frequency2, and send out radio frequency
The load impedance Z of raw module 1602With output impedance Z1Difference (i.e. load impedance Z2Subtract output impedance Z1Obtained numerical value) it is big
In being equal to one first impedance threshold and be less than or equal to one second impedance threshold, and the first impedance threshold is less than the second impedance threshold,
To improve the defrosting efficiency of object to be processed.In some preferred embodiments, the first impedance threshold is output impedance Z1- 6~-
4%, the second impedance threshold is output impedance Z14~6%.It is further preferred that the first impedance threshold is output impedance Z1-
5%, the second impedance threshold is output impedance Z15%.In other words, load compensation module can be configured to make radio frequency that module occur
160 load impedance Z2With output impedance Z1Absolute value of the difference, output impedance Z is always less than in entire course of defrosting1's
5%, it may be, for example, output impedance Z11%, 3% or 5%.
Detection module 140 can be configured to the load impedance Z that module 160 further occurs according to radio frequency2, calculate object to be processed
Dielectric coefficient rate of change, to judge the defrosting progress of object to be processed.The calculation formula of the dielectric coefficient of object to be processed is such as
Under:
X2=1/2 π fC (4)
The π of ε=4 KdC/S (5)
In formula (4), (5): f is the frequency of rf wave；C is that radio-frequency antenna 130 and 111 roof of defrosting chamber are constituted
The capacitor of capacitor；ε is the dielectric coefficient of object to be processed；K is dielectric constant；D is the thickness of radio-frequency antenna 130；S is one right
Claim the area of oscillator.
The rate of change of the dielectric coefficient of object to be processed can pass through the variation of the dielectric coefficient ε in unit of account time Δ t
It is worth Δ ε to obtain, wherein unit time Δ t can be 0.1 second~1 second, such as 0.1 second, 0.5 second or 1 second.Fig. 2 is according to the present invention
(ordinate is the change of the dielectric coefficient of object to be processed to the rate of change curve graph of the dielectric coefficient of the object to be processed of one embodiment
Change rate Δ ε/Δ t；Abscissa is the thawing time t, unit min of object to be processed).Referring to fig. 2, in some preferred embodiments
In, module 160, which occurs, for radio frequency can be configured to be more than or equal to the first speed as rate of change Δ ε/Δ t of the dielectric coefficient of object to be processed
When rate threshold value, operating power reduces by 30%~40%, such as 30%, 35% or 40%, to prevent object to be processed from excessively being solved
Freeze (those skilled in the art understandably, excessively thaw and are greater than 0 DEG C for the temperature of object to be processed).First rate threshold value can be
15~20, such as 15,17,18 or 20.Module 160, which occurs, for radio frequency may be additionally configured to when the variation of the dielectric coefficient of object to be processed is fast
When rate Δ ε/Δ t drops below or equal to the second rate-valve value, stop working.Second rate-valve value can be 1~2, such as 1,1.5
Or 2.
With the temperature change of object to be processed, the dielectric coefficient of object to be processed can also change therewith, be those skilled in the art
Member is known, however dielectric coefficient is usually measured by special instrument (such as dielectric coefficient tester), and special instrument occupies sky
Between it is big, at high cost, be not suitable for the lesser thawing apparatus 100 of size.The incidence wave that the present invention passes through detection radio-frequency antenna 130
Signal and reflection wave signal are computed the dielectric coefficient for obtaining object to be processed, occupy little space and at low cost, especially suitable for solution
Freeze device 100.The present invention makes that the load impedance of module 160 occurs for radio frequency and the difference of output impedance is in by load compensation module
In one preset range (be more than or equal to one first impedance threshold and be less than or equal to one second impedance threshold), object to be processed is improved
Defrosting efficiency.
Further, the present invention calculates the rate of change of the dielectric coefficient of object to be processed by detection module 140, to judge
The defrosting progress of object to be processed.Before making the present invention, those skilled in the art are it is believed that the temperature when object to be processed is higher
When (temperature of object i.e. to be processed is more than or equal to -7 DEG C), fuel factor can significantly decay, thus object to be processed will not excessively be thawed.
However actual conditions are really not so, usual radio frequency defrosting power is larger, be greater than 100W, when object to be processed self-temperature
When higher, object to be processed is easily excessively thawed.Present inventor creatively recognizes, when object to be processed temperature
When higher, the operating power that module 160 occurs for radio frequency is reduced by 30~40%, object to be processed can be effectively prevented and decomposed excessively
Freeze.Further, whether the present invention judges to thaw and complete by the rate of change of the dielectric coefficient of object to be processed, compared to existing
Judge to thaw whether complete by sensing the temperature of object to be processed in technology, it is more accurate to judge, can further prevent wait locate
Reason object is excessively thawed, and test shows the object to be processed to be thawed by thawing apparatus 100 of the invention, the temperature thawed when completing
It generally -4~-2 DEG C of degree, can avoid thawing when object to be processed is meat and generating watery blood.
In some embodiments, thawing apparatus 100 may also include the switch of the defrosting for controlling thaw routine start and stop.Radio frequency
Module 160 occurs to be configured to start to work when the switch that thaws is opened；When the switch that thaws is closed, stop working.It was thawing
Cheng Zhong, user can terminate thaw routine by closing defrosting switch at any time.The switch that thaws may be configured as when thawing completion certainly
It is dynamic to switch to closed state.Thawing apparatus 100 is also provided with buzzer, for prompting user's object to be processed to thaw completion.
Fig. 3 is the schematic diagram of drawer 120 in Fig. 1；Fig. 4 is the schematic explosive view of drawer 120 in Fig. 3.Referring to
Fig. 3 and Fig. 4, thawing apparatus 100 may also include drawer 120.Further, drawer 120 may include bottom plate, front circumferential direction side plate
1211, rear portion circumferential direction side plate and two drawer bodies 121 that laterally circumferential side plate surrounds, for carrying object to be processed.Especially
Ground, front circumferential direction side plate 1211 may be configured as to cooperate with the peripheral region of the forward opening of defrosting chamber 111, using as device gate
Body is opened and closed defrosting chamber 111.The distance between lower surface and the upper surface of radio-frequency antenna 130 of bottom plate can be 8~12mm, such as
8mm, 10mm or 12mm generate friction with radio-frequency antenna 130 to avoid bottom plate in the draw process of drawer 120.Front is circumferential
The forward upper of side plate 1211 can offer the groove 1212 of the transverse direction extension along thawing apparatus 100, in order to user's pumping
Draw drawer 120.The present invention directly passes through the front circumferential direction side plate 1211 and the cooperation opening and closing defrosting chamber of cylinder 110 of drawer body 121
Room 111, compared with the prior art in drive end bearing bracket be separately provided with drawer body 121, not only increase user experience and defrosting
The aesthetics of device 100, and be integrally formed, reduce assembly process, reduce production cost, improves production efficiency.
In some currently preferred embodiments of the present invention, drawer body 121 can be made of ambroin, be existed with reducing rf wave
Electromagnetic consumable at drawer body 121.Drawer 120 may also include Metal decorative part 122, conductive sheet metal component 123 and elastic conduction
Ring 124.Metal decorative part 122 may be configured as the front surface for being attached to front circumferential direction side plate 1211 and upper and lower end face, to improve
The aesthetics of thawing apparatus 100.Conductive sheet metal component 123 may be configured as two transverse end surfaces for being attached to front circumferential direction side plate 1211
The portion back surface cooperated with the peripheral region of the forward opening with defrosting chamber 111, with Metal decorative part 122 and metal cylinder
110 cooperatively form electromagnetic circuit, reduce magnetic dispersion amount of the thawing apparatus 100 at the forward opening of defrosting chamber 111, reduce
Harmfulness of the rf wave to user.Elastic conduction ring 124 may be provided at the rear surface of conductive sheet metal component 123, so that it is preceding
Portion's circumferential direction side plate 1211 is squeezed and deformed when closing defrosting chamber 111, is fitted closely with cylinder 110, is improved thawing apparatus
100 leakproofness, to be further reduced magnetic dispersion amount of the thawing apparatus 100 at the forward opening of defrosting chamber 111.
In some embodiments of the invention, thawing apparatus 100 further includes support frame.Support frame may include in the horizontal direction
The horizontal segment 151 of extension.Horizontal segment 151 is set as being fixedly connected with the rear wall of defrosting chamber 111, and detection module 140, load
Compensating module may be provided on horizontal segment 151.Support frame may include that may also include to extend straight up from the front end of horizontal segment 151
Vertical section 152.Vertical section 152 is set as being fixedly connected with the roof of defrosting chamber 111, to improve the stability of support frame.
In some preferred embodiments, cylinder 110 can be made of conductive metal.Support frame is set as and defrosting chamber 111
Roof, rear wall and two transverse inner walls be conductively connected and surround can prevent rf wave enter shielding chamber, effectively to keep away
The rf wave for exempting from the generation of radio-frequency antenna 130 interferes detection module 140 and load compensation module, improves detection module
The 140 incidence wave signals detected and reflection wave signal and load compensation module adjust the load impedance that module 160 occurs for radio frequency
Accuracy, and then improve the accuracy for judging the defrosting progress of object to be processed, ensure that the Thawing Rate of object to be processed.Solution
Freezing device 100 may also include protective switch, when being configured to open front circumferential direction side plate 1211 in course of defrosting as user, to penetrating
The raw module 160 that takes place frequently sends electric signal, makes radio frequency that module 160 occur and stops working, endangers user health to avoid rf wave, mention
The safety of high thawing apparatus 100.Protective switch can be touching formula mechanical switch.In some preferred embodiments, protective switch
It may be provided at the front surface of the vertical section 152 of support frame, and when front peripheral side plate 1211 is closed, protective switch can be with drawer
The rear portion circumferential direction side plane contact of ontology 121, switching are in an open state.When user opens front circumferential direction side plate 1211, protection is opened
Pass is separated with the rear portion circumferential direction side plate of drawer body 121, and protective switch switching is in off state, and module 160 occurs to radio frequency
The electric signal to stop working is sent, makes radio frequency that module 160 occur and stops working.In some alternate embodiments, protective switch
It may be provided at the peripheral region of the forward opening of defrosting chamber 111.
In some currently preferred embodiments of the present invention, thawing apparatus 100 may also include conductive connection plates 153.It is conductively connected
Plate 153 may be disposed between the horizontal segment 151 of detection module 140, load compensation module and support frame, respectively with detection module
140, the horizontal segment 151 of load compensation module and support frame is conductively connected, and is grounded conductive connection plates 153, can eliminate accumulation
Charge on cylinder 110 and support frame further prevents detection module 140 and load compensation module to be done by rf wave
It disturbs, and improves the safety of thawing apparatus 100.In some embodiments of the invention, thawing apparatus 100, which may also include, to pass
The conductive post 154 of power transmission signal.The both ends of conductive post 154 can be respectively set to horizontal segment 151 and radio-frequency antenna with support frame
130 are conductively connected, and the incidence wave signal and reflection wave signal of radio-frequency antenna 130 are transmitted to the horizontal segment 151 of support frame, examine
The incidence wave signal and reflection wave signal of radio-frequency antenna 130 can be obtained by the electric signal on detection support frame by surveying module 140,
It is not only convenient for the assembly of thawing apparatus 100, can also get more accurate incidence wave signal and reflection wave signal.
In some currently preferred embodiments of the present invention, module 160, which occurs, for radio frequency may be disposed at the outside of cylinder 110, so as to
Module 160 occurs in radio frequency to radiate.The outer wall of the back plate of cylinder 110 can have and radio-frequency antenna 130, detection module 140, load
Module 160 occurs for the cylinder Wiring ports 113 of the electrical connections such as compensating module, protective switch, radio frequency can have to be connected electrically
Radio-frequency connections port 161.Cylinder Wiring port 113 and radio-frequency connections port 161 can be electrically connected by electrical wiring, the electrical wiring packet
Two wire terminals for including conducting wire and being electrically connected respectively with the both ends of conducting wire, two wire terminals can respectively with cylinder Wiring port
113 and radio-frequency connections port 161 be electrically connected, in order to the installation and storage of thawing apparatus 100.
A kind of refrigerator 200 can also be provided in thawing apparatus 100 based on aforementioned any embodiment, the present invention.Fig. 5 is according to this
The schematic cross sectional views of the refrigerator 200 of invention one embodiment.Referring to Fig. 5, refrigerator 200 generally may include defining compression
The cabinet 210 of machine room 214 and at least one storage room, the compartment door for picking and placing mouth for being opened and closed each storage room respectively
Body, refrigeration system, and it is set to the thawing apparatus 100 of a storage room.In the illustrated embodiment, thawing apparatus 100
Quantity is one.Refrigerator 200 is that (knownly, wind cooling refrigerator refers in refrigeration system those skilled in the art wind cooling refrigerator
Evaporator 234 is arranged in air duct cover board 240 and the sandwiched compartment supply air duct of storage room inner wall, and utilizes Air Blast fan
2131 force the refrigerator of the air and 234 heat convection of evaporator in storage room), and there are three between storing for the restriction of cabinet 210
Room, respectively refrigerator room 211, alternating temperature compartment 212 and freezing compartment 213, and be respectively used to opening and closing refrigerator room 211, become
Warm compartment 212 and the refrigeration door body 221 of freezing compartment 213, alternating temperature door body 222 and freezing door body 223, thawing apparatus 100 are arranged
In freezing compartment 213.
In addition, also illustratable be, knownly, refrigerator room 211 refers to the preservation to food materials to those skilled in the art
The storage room that temperature is 0~+8 DEG C；The storing that it is -20~-15 DEG C between the preservation temperature of food materials that freezing compartment 213, which refers to,
Room；Alternating temperature compartment 212 refer to can to a wide range (such as adjusting range can at 4 DEG C or more, and be adjustable to 0 DEG C or more or 0 DEG C with
Under) change the storage room of its preservation temperature, its general preservation temperature may span across refrigeration, soft freezing (generally -4~0 DEG C) and
Cryogenic temperature, preferably -16~+4 DEG C.
In some currently preferred embodiments of the present invention, radio frequency generation module 160 may be disposed at the outer of the foaming layer of cabinet 210
Side in order to which the heat dissipation maintenance of module 160 occurs for radio frequency, and can increase the dischargeable capacity of defrosting chamber 111.Connector drum terminals
Mouth 113 and the conducting wire of radio-frequency connections port 161 can be preset in the foaming layer of cabinet 210, and two wire terminals can be consolidated respectively
Due to the inner wall for the storage room for being provided with thawing apparatus 100 and the outside of cabinet 210.Cylinder 110 may be configured as can be along refrigerator
200 front-rear direction slides and is electrically connected cylinder Wiring port 113 with the wire terminal for being fixed on storage room inner wall, so as to
In the installation of thawing apparatus 100.Thawing apparatus 100 may also include for the radio-frequency power supply that module 160 is powered to occur for radio frequency.It penetrates
Frequency power may be configured as being electrically connected with the power supply circuit of refrigerator 200, be radio frequency to obtain electric energy from the power supply circuit of refrigerator 200
Module 160 occurs to power.
In some further preferred embodiments of the invention, cylinder 110 can have from its back plate extend back to
A few guide pad 112, the rear wall for being provided with the storage room of thawing apparatus 100 accordingly offer guide groove, guide pad 112
It may be configured as that guide groove can be slid into along the front-rear direction of refrigerator 200, and make cylinder Wiring port 113 and be set to the storage room
The wire terminal of rear wall docks, and in order to the installation of cylinder 110, and Wiring port and wire terminal is avoided to damage.Wherein it is oriented to
Size of the block 112 on the front-rear direction of refrigerator 200 can be greater than the wire terminal for being fixed on storage room rear wall in refrigerator 200
Size on front-rear direction.In the present invention, the quantity of guide pad 112 can for one, it is two or more more.It leads
Quantity to block 112 is preferably two, so that the guiding of guide pad 112 accuracy with higher.The bottom surface of guide pad 112
May be configured as it is coplanar with the bottom surface of cylinder 110, in order to which guide pad 112 is docked with guide groove.The rear surface of guide pad 112 can be set
It is set to the equal arc transition in side with guide pad 112 perpendicular to the rear surface to connect, to avoid in guide pad 112 and guide groove pair
Storage room inner wall is damaged when connecing.
Fig. 6 is the schematic diagram of compressor room 214 according to an embodiment of the invention.Referring to Fig. 6, in the present invention
Some embodiments in, radio frequency occur module 160 may be disposed in compressor room 214.Occur what module 160 was electrically connected with radio frequency
Wire terminal can be fixed at the inner wall of compressor room 214 or be extended in compressor room 214, in order to which module occurs for radio frequency
160 electrical connection.Refrigerator 200 may include drip tray 2141.Drip tray 2141 is mounted on the chassis of refrigerator 200, and is formed with
The cavity of upward opening, for collecting and evaporating the condensed water in refrigerator 200.Compressor 231 is mounted on 2141 cavity of drip tray
Bottom wall on.Penetrating on the chassis for being mounted on refrigerator 200 side by side with it is also provided in the transverse direction of drip tray 2141
Frequency bracket 2144, radio frequency occur module 160 and are fixed on the radio frequency bracket 2144.Two lateral sidewalls of compressor room 214 point
Cooling vent 2142 is not offered, in order to which heat is expelled to compressor room 214 from compressor room 214 with air flowing
Outside.
Refrigerator 200 may also include radiating panel 2145.Radiating panel 2145 may be configured as that 160 heat of module occurs with radio frequency even
It connects, to increase the heat dissipation area that module 160 occurs for radio frequency, improves radiating efficiency.Specifically, radiating panel 2145 may include level
The substrate of extension and multiple fins that the upper surface of self-reference substrate is parallel and compartment of terrain upwardly extends.Substrate may be configured as sending out with radio frequency
The upper surface of raw module 160 is thermally connected.Preferably by thermal paste or heat pipe structure and radio frequency module 160 occurs for radiating panel 2145
It is thermally connected, the rate of radiating panel 2145 is transferred to improve heat from radio frequency generation module 160, so that improving radio frequency occurs mould
The radiating efficiency of block 160.In the present invention, thermal paste can be heat conductive silica gel.
In some preferred embodiments, module 160, which occurs, for radio frequency to change naturally under the flowing of the air in compressor room 214
Heat.Multiple fins of radiating panel 2145 may be configured as extending along the transverse direction of refrigerator 200, in order to which air is along multiple fins
Between gap flowing.In some further preferred embodiments, at least one radiation air may be provided in compressor room 214
Machine 2143.Cooling fan 2143 can be configured to that air-flow is promoted to flow along the transverse direction of refrigerator 200, to accelerate compressor room 214
Interior speed air flow, and then improve radio frequency and 160 radiating efficiency of module occurs.Cooling fan 2143 is preferably provided at radio frequency hair
Between raw module 160 and compressor 231, the heat that module 160 and the generation of compressor 231 occurs to avoid radio frequency accumulates in compression
Side in machine room 214 forms security risk and reduces the service life that module 160 and compressor 231 occur for radio frequency.Due to penetrating
The heat that the heat that the raw module 160 that takes place frequently generates when working generates when working far fewer than compressor 231, cooling fan 2143 can match
It is set to the cooling vent 2142 for promoting the air outside compressor room 214 that module 160 occurs from neighbouring radio frequency and enters compressor room
It in 214, and is discharged to outside compressor room 214 from the cooling vent 2142 of neighbouring compressor 231, module occurs to avoid radio frequency
160, because long-time is in higher temperatures environment, reduce service life.It is further preferred that cooling fan 2143 may be configured as working as
Compressor 231 and radio frequency occur to start to work when any one in module 160 is in running order, divulge information for compressor room 214
Heat dissipation.In some embodiments, condenser 232 may also be arranged in compressor room 214, in order to the heat dissipation of condenser 232.It is cold
Condenser 232 is preferably provided at cooling fan and radio frequency occurs between module 160.
Fig. 7 is the schematic diagram of compressor room 214 in accordance with another embodiment of the present invention.Referring to Fig. 7, another
In a little preferred embodiments, the top that module 160 occurs for radio frequency may be provided at least one cooling fan 2143, and mould occurs in radio frequency
Block 160 promotes radio frequency that the air flowing of 160 top of module occurs when in running order, dissipated with improving radio frequency generation module 160
The thermal efficiency.The air supply direction of cooling fan 2143 may be configured as it is parallel with the extending direction of multiple fins, to reduce radio frequency
The resistance of the air flowing of 160 top of module.Multiple fins may be configured as extending along the front-rear direction of refrigerator 200, so that compression
The heat exchange of air and multiple fins in machine room 214 is more abundant.Cooling fan 2143 may be disposed at the interior of compressor room 214
Side, i.e. cooling fan 2143 are located at the front side of radiating panel 2145, and the heat that module 160 generates occurs to avoid radio frequency and accumulates in
In compressor room 214.Cooling fan 2143 be preferably its projection on the perpendicular perpendicular to fin be completely near
In the spatial dimension of the two sandwiched formation of fin of nearly substrate circumferential edge, i.e., cooling fan 2143 is perpendicular to the vertical of fin
Projection in plane is completely between two fins of spaced furthest, to reduce radiation air while guaranteeing radiating efficiency
The occupied space of machine 2143.In the present invention, cooling fan 2143 can be centrifugal blower.The quantity of cooling fan 2143 can be one
It is a, two or more.Cooling fan 2143 may be configured as being fixedly connected with the substrate of radiating panel 2145, in order to radiate
The installation and removal of blower 2143.
Fig. 8 is the schematic diagram of refrigerator 200 according to an embodiment of the invention.Referring to Fig. 8, of the invention another
In some embodiments, the outer container of cabinet 210 can define the accommodation groove 215 being recessed inwardly, and the settable appearance of module 160 occurs for radio frequency
It sets in slot 215, in order to which the heat dissipation maintenance of module 160 occurs for radio frequency.The wire terminal being electrically connected with radio frequency generation module 160 can
It is fixed at the inner wall of accommodation groove 215 or extends in accommodation groove 215, in order to which the electrical connection of module 160 occurs for radio frequency.For
The radio-frequency power supply that module 160 is powered, which occurs, for radio frequency may also be arranged in accommodation groove 215, in order to the maintenance of radio-frequency power supply.Case
Body 210 can also have the accommodating cover board 216 for the backward opening for being removably disposed in accommodation groove 215, to avoid radio frequency generation
The exposed damage of module 160, and improve the aesthetics of refrigerator 200.Accommodation groove 215 can be located at the roof of cabinet 210, due to usual
The top have no occluder of refrigerator 200 is more advantageous to the heat dissipation that module 160 occurs for radio frequency.Fig. 9 is according to an embodiment of the present invention
Refrigerator 200 schematic diagram.Referring to Fig. 9, accommodation groove 215 be may be alternatively located at the rear wall of refrigerator 200, convenient for checking and tieing up
It repairs radio frequency and module 160 occurs.In some preferred embodiments, module 160, which occurs, for radio frequency may be configured as with 216 heat of accommodating cover board even
It connects, without improving the radiating efficiency that module 160 occurs for radio frequency by the air indirect heat transfer in accommodation groove 215.Radio frequency occurs
It is also provided with thermal paste between module 160 and accommodating cover board 216, is transmitted to appearance to improve heat from radio frequency generation module 160
Set the rate of cover board 216.
Figure 10 is the flow chart of unfreezing control method according to an embodiment of the invention.Referring to Figure 10, solution of the invention
Freezing control method may include steps of:
Step S1002: judge to thaw to switch and whether open, if so, executing step S1004；If it is not, executing step S1002.
Step S1004: judging whether protective switch is opened (judging whether front circumferential direction side plate 1211 closes), if so,
Execute step S1006；If it is not, executing step S1004.
Step S1006: radio frequency occurs module 160 and generates radiofrequency signal, and detection module 140 detects entering for radio-frequency antenna 130
Ejected wave signal and reflection wave signal.Operating procedure S1008.
Step S1008: obtain incidence wave signal voltage and current and reflection wave signal voltage and current, calculate to
Rate of change Δ ε/Δ t of the dielectric coefficient of processed material.
Step S1010: judge whether rate of change Δ ε/Δ t of the dielectric coefficient of object to be processed is more than or equal to first rate
Threshold value, if so, executing step S1012；If it is not, executing step S1008.
Step S1012: the operating power that module 160 occurs for radio frequency reduces by 30%~40%.In this step, radio frequency occurs
The operating power of module 160 can reduce by 35%.
Step S1014: obtain incidence wave signal voltage and current and reflection wave signal voltage and current, calculate to
Rate of change Δ ε/Δ t of the dielectric coefficient of processed material.
Step S1016: judge whether rate of change Δ ε/Δ t of the dielectric coefficient of object to be processed is less than or equal to the second rate
Threshold value, if so, executing step S1018；If it is not, executing step S1014.
Step S1018: radio frequency occurs module 160 and stops working, and the switch that thaws is resetted and (closed).
It may also include the steps of: after step S1006
Step S1020: obtaining the voltage and current of incidence wave signal and the voltage and current of reflection wave signal, calculating are penetrated
The load impedance Z2 for the raw module 160 that takes place frequently.
Step S1022: judge that the difference of the load impedance Z2 and output impedance Z1 of module 160 occur for radio frequency whether less than the
One impedance threshold, if so, executing step S1024；If it is not, executing step S1026.
Step S1024: the motor work of load compensation module increases the impedance of compensating unit.Return step S1020.
Step S1026: judge that radio frequency occurs the difference of the load impedance Z2 and output impedance Z1 of module 160 and whether is greater than the
Two impedance thresholds, if so, executing step S1028；If it is not, executing step S1020.
Step S1028: the motor work of load compensation module reduces the impedance of compensating unit.Return step S1020.
The workflow of the refrigerator 200 of one embodiment of the invention can include: when user opens thaw switch and front week
When closing to side plate 1211, radio frequency occurs module 160 and generates radiofrequency signal, and detection module 140 and load compensation module 260 start
Work.Detection module 140 detects the incidence wave signal and reflection wave signal of radio-frequency antenna 130, and calculates RF transmitter
Rate of change Δ ε/Δ t of load impedance Z2 and dielectric coefficient.When rate of change Δ ε/Δ t of the dielectric coefficient of object to be processed is big
When being equal to first rate threshold value, the operating power reduction by 35% of module 160 occurs for radio frequency, meanwhile, in entire defrosting workflow
Cheng Zhong, when the difference of the load impedance Z2 and output impedance Z1 of module 160 occur for radio frequency less than the first impedance threshold or greater than second
When impedance threshold, load compensation module adjusts the impedance magnitude of compensating unit by motor, and then adjusts radio frequency and module 160 occurs
Load impedance Z2, make radio frequency occur module 160 load impedance Z2 and output impedance Z1 difference be always more than equal to first hinder
Anti- threshold value and be less than or equal to the second preset threshold.When rate of change Δ ε/Δ t of the dielectric coefficient of object to be processed is less than or equal to the
When two rate-valve values, radio frequency occurs module 160 and stops working, and the switch that thaws automatically switches to be in off state.
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 thawing apparatus, comprising:
Cylinder is surrounded by top plate and bottom plate, back plate and two opposite lateral side plates and defines the defrosting chamber with forward opening
Room, the defrosting chamber is for placing object to be processed；
Device door body is set at the forward opening of the defrosting chamber, for being opened and closed the defrosting chamber；
Module occurs for radio frequency, is configured to generate radiofrequency signal；With
Radio-frequency antenna is set in the defrosting chamber, and is set as being electrically connected with radio frequency generation module, according to
Radiofrequency signal generates the rf wave of corresponding frequencies in the defrosting chamber, and the indoor object to be processed of the defrosting chamber that thaws；
Wherein
The radio-frequency antenna horizontally is arranged at the bottom wall of the defrosting chamber, to improve the aesthetics of the thawing apparatus.
2. thawing apparatus according to claim 1, further includes:
Detection module is configured to detect the incidence wave signal of the radio-frequency antenna and reflection wave signal, and according to the incidence wave
The voltage and current of the voltage and current of signal and the reflection wave signal calculates the variation of the dielectric coefficient of object to be processed
Rate；And the radio frequency occurs module and is configured that
When the rate of change of the dielectric coefficient of object to be processed is more than or equal to first rate threshold value, operating power reduction by 30%~
40%, to prevent object to be processed from excessively being thawed；And/or
When the rate of change of the dielectric coefficient of object to be processed drops below or equal to the second rate-valve value, stop working.
3. thawing apparatus according to claim 2, further includes:
Support frame, including horizontally extending horizontal segment, the horizontal segment is set as solid with the rear wall of the defrosting chamber
Fixed connection；And
The detection module is set on the horizontal segment.
4. thawing apparatus according to claim 3, wherein support frame as described above further include:
Vertical section is set as extending straight up from the front end of the horizontal segment, and fixes and connect with the roof of the defrosting chamber
It connects, to improve the stability of support frame as described above.
5. thawing apparatus according to claim 1, wherein
The outside that module is set to the cylinder occurs for the radio frequency, in order to which module heat dissipating occurs for the radio frequency.
6. thawing apparatus according to claim 5, wherein
The outer wall of the back plate has the cylinder Wiring port being electrically connected with the radio-frequency antenna；
Module, which occurs, for the radio frequency has the radio-frequency connections port being connected electrically；And the thawing apparatus further include:
Electrical wiring, two wire terminals being electrically connected including conducting wire and respectively with the both ends of the conducting wire, described two wire ends
Son is set as being electrically connected with the cylinder Wiring port and the radio-frequency connections port respectively, in order to the thawing apparatus
Installation and storage.
7. a kind of refrigerator, including defining the cabinet of at least one storage room and according to claim 1 described in any one of -6
Thawing apparatus, the thawing apparatus is set in the storage room.
8. refrigerator according to claim 7, wherein
The outside that module is set to the foaming layer of the cabinet occurs for the radio frequency, in order to which module heat dissipating occurs for the radio frequency.
9. refrigerator according to claim 8, wherein
The conducting wire is preset in the foaming layer of the cabinet, and described two wire terminals are individually fixed in the storage room
Inner wall and the cabinet outside；And
The cylinder is set as that the cylinder Wiring port can be slided and made along the front-rear direction of the refrigerator and is fixed on described
The wire terminal of storage room inner wall is electrically connected, in order to the installation of the thawing apparatus.
10. refrigerator according to claim 9, wherein
The cylinder has at least one guide pad to extend back from its back plate；And
The rear wall of the storage room accordingly offers guide groove, and the guide pad is set as can be along the front and back of the refrigerator
To the slide-in guide groove, and dock the cylinder Wiring port with corresponding wire terminal, in order to the peace of the cylinder
Dress avoids the Wiring port and the wire terminal from damaging；Wherein
Size of the guide pad on the front-rear direction of the refrigerator is greater than the wire ends for being fixed on the storage room inner wall
Size of the son on the front-rear direction of the refrigerator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711489619.3A CN109990554B (en) | 2017-12-29 | 2017-12-29 | Thawing device and refrigerator with same |
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| CN201711489619.3A CN109990554B (en) | 2017-12-29 | 2017-12-29 | Thawing device and refrigerator with same |
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| CN109990554B CN109990554B (en) | 2021-02-26 |
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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 |
| CN112984934A (en) * | 2019-12-16 | 2021-06-18 | 博西华电器（江苏）有限公司 | Thawing device and refrigerator |
| CN112996158A (en) * | 2019-12-13 | 2021-06-18 | 青岛海尔电冰箱有限公司 | Control method for heating device and heating device |
| US20220079191A1 (en) * | 2019-01-04 | 2022-03-17 | Haier Smart Home Co., Ltd. | Refrigerating and freezing device |
| WO2024002090A1 (en) * | 2022-06-30 | 2024-01-04 | 青岛海尔电冰箱有限公司 | Refrigeration and freezing apparatus |
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Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: Qingdao Haier Joint Stock Co.,Ltd. |
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Inventor after: Zhao Nanfeng Inventor after: Wang Haijuan Inventor after: Li Peng Inventor after: Zhu Xiaobing Inventor after: Han Zhiqiang Inventor before: Wang Haijuan Inventor before: Li Peng Inventor before: Zhu Xiaobing |
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