CN107477956A - Evaporator of refrigerator defrost heater, wind cooling refrigerator and defrosting control method - Google Patents

Evaporator of refrigerator defrost heater, wind cooling refrigerator and defrosting control method Download PDF

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Publication number
CN107477956A
CN107477956A CN201710837772.4A CN201710837772A CN107477956A CN 107477956 A CN107477956 A CN 107477956A CN 201710837772 A CN201710837772 A CN 201710837772A CN 107477956 A CN107477956 A CN 107477956A
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CN
China
Prior art keywords
evaporator
heating
refrigerator
defrost
heated shell
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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CN201710837772.4A
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Chinese (zh)
Inventor
陈红欣
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Hisense Shandong Refrigerator Co Ltd
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Hisense Shandong Refrigerator Co Ltd
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Priority to CN201710837772.4A priority Critical patent/CN107477956A/en
Publication of CN107477956A publication Critical patent/CN107477956A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06Removing frost
    • F25D21/08Removing frost by electric heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002Defroster control
    • F25D21/004Control mechanisms

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Defrosting Systems (AREA)

Abstract

The invention discloses a kind of evaporator of refrigerator defrost heater, wind cooling refrigerator and defrosting control method, it is related to refrigerator art.Heating power can be distributed on demand, lifting defrost efficiency, reduce refrigerator power consumption.Evaporator of refrigerator of the present invention defrost heater, including heated shell, formed with the heating chamber for accommodating evaporator of refrigerator in the heated shell, the air inlet and air outlet connected with the heating chamber is offered in the heated shell, the heating chamber is surrounded by heatable heating bottom plate and heating side wall, the heating bottom plate is relative with the bottom surface of evaporator of refrigerator, and the heating side wall is set for one week around the side of the evaporator of refrigerator.The present invention can be used for the defrost of air cooling refrigerator evaporator.

Description

Evaporator of refrigerator defrost heater, wind cooling refrigerator and defrosting control method
Technical field
The present invention relates to refrigerator art, more particularly to a kind of evaporator of refrigerator defrost heater, wind cooling refrigerator And defrosting control method.
Background technology
With the continuous development of refrigerator technology, the horsepower requirements of wind cooling refrigerator are improved constantly, and to wind cooling refrigerator Refrigeration performance requirement constantly lifting.However, when the refrigeration performance lifting of wind cooling refrigerator, the evaporator surface frosting problem of refrigerator Will be serious, at this moment just need to defrost to evaporator.Generally use heater is heated to evaporator and defrosted, but in refrigerator When white, the temperature of refrigerator compartment can be brought to rise, influence food quality, increase the power consumption of refrigerator and cause demand charge to increase Add.
A kind of heater structure of prior art is as shown in figure 1, including evaporator 01 and be arranged at the both sides of evaporator 01 Heater 02.Heating of the program to the two sides of evaporator 01 is more uniform.But during defrost, on evaporator 01 The ice slag not melted and ice cube to come off can be deposited in the water receiving tank (not shown) of bottom, and water receiving tank from heater compared with Far, temperature is relatively low, and residual ice accumulation can not melt in time in water receiving tank, can be blocked after several defrost cycles under evaporator The air inlet in portion, cause air channel to block, influence refrigeration for refrigerator.
The content of the invention
Embodiments of the invention provide a kind of evaporator of refrigerator defrost heater, wind cooling refrigerator and defrosting control side Method, heating power can be distributed on demand, lifting defrost efficiency, reduces refrigerator power consumption, and can prevent that accumulation is residual in water receiving tank Ice.
To reach above-mentioned purpose, to be heated in a first aspect, the embodiment provides a kind of evaporator of refrigerator with defrost Device, including heated shell, the heated shell are interior formed with the heating chamber for accommodating evaporator of refrigerator, the heated shell On offer the air inlet and air outlet connected with the heating chamber, the heating chamber is by heatable heating bottom plate and heated side Wall surrounds, and the heating bottom plate is relative with the bottom surface of evaporator of refrigerator, and the heating side wall surrounds the side of the evaporator of refrigerator Face is set for one week.
Second aspect, embodiments of the invention additionally provide a kind of wind cooling refrigerator, including evaporator, in addition to above-mentioned technology Defrost heater described in scheme, the evaporator are arranged in the heating chamber of the defrost heater, and the defrost adds The heating bottom plate of thermal is relative with the bottom surface of evaporator, and the heating side wall of the defrost heater is around the evaporator Side is set for one week.
Evaporator of refrigerator provided in an embodiment of the present invention defrost heater and wind cooling refrigerator, heat bottom plate and heated side Wall surrounds heating chamber, and evaporator is placed in heating chamber, forms the heating arrangement of three-dimensional encirclement evaporator so that evaporator Bottom surface and each side have corresponding heater to heat.Thus, the heating power of each heater can be adjusted as needed, make to add Hot temperature is distributed on demand, lifts defrost efficiency and reduces heating power consumption.Further, since the bottom of heating bottom plate and evaporator of refrigerator Face is relative, and therefore, the residual ice fallen on heating bottom plate can be heated bottom plate heating and melt or evaporate, and be blocked so as to avoid residual ice Air channel, it ensure that the refrigeration of refrigerator.
The third aspect, the embodiment of the present invention additionally provide a kind of defrosting control method, comprised the following steps:
S1, when the surface temperature value for detecting evaporator is less than the first preset temperature value, defrost pattern is opened, makes heating Housing is heated with the first heating frequency;
S2, when the surface temperature for detecting evaporator is higher than the second preset temperature, reduce the heating of the heated shell Frequency;
S3, when the surface temperature value for detecting evaporator is higher than three preset temperature values, defrost pattern is closed, makes heating Housing stops heating,
Wherein, the 3rd preset temperature value described in the second preset temperature value < described in the first preset temperature value <.
The defrosting control method that the third aspect of the embodiment of the present invention provides, can be heated according to the surface temperature control of evaporator The heating frequency of housing, realize the dynamic control of heating process so that the overall heating temp of heater reduces, heating heat point Cloth is uniformly, defrost is more thorough and power consumption is lower.
Fourth aspect, the embodiment of the present invention additionally provide another defrosting control method, comprised the following steps:
N1, when detecting that the temperature value of any surface of the evaporator is less than the first preset temperature value, control the table The wall of heated shell corresponding to face is heated;
N2, when detecting that the temperature on the surface of evaporator is higher than the second preset temperature, reduce and add corresponding to the surface The heating frequency of the wall of hot housing;
N3, when detecting that the temperature value on the surface of the evaporator is higher than three preset temperature values, control the surface The wall of corresponding heated shell stops heating,
Wherein, the 3rd preset temperature value described in the second preset temperature value < described in the first preset temperature value <.
The defrosting control method that fourth aspect of the embodiment of the present invention provides, can distinguish according to the temperature on each surface of evaporator Controlling the heating power of heated shell each wall accordingly so that computer heating control is more accurate, more identical with actual frosting situation, So as to further reduce the overall heating temp of heated shell, the distribution of heating heat is more met actual demand, defrost more thorough Bottom and power consumption is lower.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the defrost heater of prior art;
Fig. 2 is the structural representation of defrost heater of the embodiment of the present invention;
Fig. 3 is Fig. 2 A portions enlarged drawing;
Fig. 4 is the cross section structure schematic diagram of electric boiling plate;
Fig. 5 is the distribution map that electric heating film in side wall is heated in defrost heater of the embodiment of the present invention;
Fig. 6 is the distribution map of electric heating film in another heating side wall in defrost heater of the embodiment of the present invention;
Fig. 7 is the distribution map that electric heating film on bottom plate is heated in defrost heater of the embodiment of the present invention;
Fig. 8 is Fig. 2 structure schematic diagram;
Fig. 9 is the structural representation of the first side wall in heated shell.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
In the description of the invention, it is to be understood that term " " center ", " on ", " under ", "front", "rear", " left side ", The orientation or position relationship of the instruction such as " right side ", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are based on shown in the drawings Orientation or position relationship, be for only for ease of the description present invention and simplify description, rather than instruction or imply signified device or Element must have specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected;It is right For one of ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Term " first ", " second " be only used for describe purpose, and it is not intended that instruction or imply relative importance or The implicit quantity for indicating indicated technical characteristic.Thus, " first " is defined, the feature of " second " can be expressed or imply Ground includes one or more this feature.In the description of the invention, unless otherwise indicated, " multiple " be meant that two or Two or more.
The evaporator of refrigerator defrost heater provided referring to Fig. 2, embodiments of the invention, including heated shell 1, institute State in heated shell 1 formed with the heating chamber for accommodating evaporator of refrigerator, offered and the heating in the heated shell 1 The air inlet 11 and air outlet 12 of chamber connection, the heating chamber are surrounded by heatable heating bottom plate 13 and heating side wall 14, institute State that heating bottom plate 13 is relative with the bottom surface of evaporator of refrigerator, the heating side wall 14 surrounds the side one week of the evaporator of refrigerator Set.
Evaporator of refrigerator provided in an embodiment of the present invention defrost heater, heating bottom plate 13 and heating side wall 14 surround Heating chamber, evaporator are placed in heating chamber, form it is three-dimensional encirclement evaporator heating arrangement so that the bottom surface of evaporator and Each side has corresponding heater to heat.Thus, the heating power of each heater can be adjusted as needed, make heating-up temperature It is distributed on demand, lifts defrost efficiency and reduce heating power consumption.Further, since the bottom surface phase of heating bottom plate 13 and evaporator of refrigerator Right, therefore, the residual ice fallen on heating bottom plate 13 can be heated the heating and melting of bottom plate 13 or evaporation, be blocked so as to avoid residual ice Air channel, it ensure that the refrigeration of refrigerator.
Wherein, it can be disk construction to heat bottom plate 13, or the funnel-shaped structure shown in Fig. 2.For the ease of Heat the defrosting water discharge on bottom plate 13, it is preferable that the heating bottom plate 13 can be arranged to funnel-shaped structure, and added described The lowest part of hot bottom plate 13 opens up apopore 131.Thus, defrosting water can be flow at apopore 131 along funnel-shaped structure, and by going out Water hole 131 is discharged, and defrosting water is remained so as to prevent from heating on bottom plate 13.
In order to realize face heating effect, it is preferable that as shown in figure 4, the heating side wall 14 and heating bottom plate 13 are by electricity Heating plate is made, and the electric boiling plate includes substrate 21, the inner surface of the substrate 21 stack gradually provided with the first insulating barrier 22, The insulating barrier 24 of electric heating film 23 and second.Wherein, electric heating film 23 connects heater circuit, and electric heating film 23 can realize that face is heated, Heating-up temperature is set to be more evenly distributed.It is each to heat side wall 14 and heat the shape of electric heating film 23 on bottom plate 13 and paste position such as figure Shown in 5~Fig. 7.
Wherein, substrate 21 can be made up of stainless steel plate, and electric heating film 23 can be made up of resistance slurry, electric heating film 23 Both side surface difference sintered multilayer insulation, resistant material, such as devitrified glass, can bear 2500V electrical strength experiment, protect Card is safe and reliable.The shape and structure of electric heating film 23 can according to the structure and frosting degree how many required design of evaporator, for example, Its resistance value can be changed by changing the thickness of electric heating film 23, the thickness of the electric heating film 23 of each wall can not Together, resistance value is higher, and power is lower, heating-up temperature is lower.The electric heating film 23 of each wall can connect can also be in parallel, supplies Circuit can be controlled or controlled respectively simultaneously to the electric heating film 23 of each wall.
In order to prevent the temperature of electric heating film 23 under abnormal conditions too high, it is preferable that as shown in figure 3, the electric heating film 23 are serially connected with temperature fuse 3, and when electric current is more than the safety value of setting, heat caused by fuse itself can melt melt It is disconnected, so as to disconnecting circuit, avoid causing deforming, being on fire for the working of plastics such as inner bag.
Led as shown in figure 3, the electric heating film 23 stretches out formed with Wiring port 231, Wiring port 231 with external The tie point of line is provided with sealed insulation set 4, and sealed insulation set 4 can prevent the powered position of moisture from causing short circuit.
As shown in figure 8, when substrate 21 is made up of metal material, the substrate 21, which is provided with, to be used to connect with earth lead Grounding ports 211.Thus, can avoid under abnormal conditions because electric heating film 23 leaks electricity and caused by shock hazard.
It should be noted that the shape of heated shell 1 and the shape of evaporator match.For example, when evaporator is rectangular During shape, the shape of heated shell 1 as shown in Figure 8, Figure 9, including four heating side walls 14 and one heating bottom plate 13, heating The open top of housing 1 is air outlet, and evaporator can be loaded in heating chamber by the air outlet at top, and heating side wall 14 includes relative The first side wall 141 and second sidewall 142 of setting, the first side wall 141 is set close to inner container of icebox rear wall, when refrigerator only has one During warm area, air inlet only can be opened up in the second sidewall 142 away from inner container of icebox, return air can be avoided to the temperature in inner container of icebox Degree impacts;When refrigerator is multi-temperature zone refrigerator, the first air inlet 111 can be opened up in the lower end of the first side wall 141, second The lower end of side wall 142 opens up the second air inlet 112, and during installation, the first air inlet 111 can connect with the return air channel of refrigerating chamber, Second air inlet 112 can be connected with the return air channel of other compartments (such as refrigerating chamber and temperature-changing chamber), and temperature thus can be made relatively low Refrigerating chamber return air channel other warm area return air channels of a relatively high with temperature are located remotely from each other, and avoid interacting.
Heated shell 1 can be fixed on the rear wall of inner container of icebox, for the ease of conduct heat away, prevent heated shell 1 In heat transfer to inner container of icebox, it is preferable that can be separated heated shell and inner container of icebox rear wall by cushion block, so as to heat Gap is formed between housing 1 and inner bag rear wall, is easy to conduct heat away.Specifically, as shown in figure 8, can be in the outer of the first side wall 141 Surface sets cushion block 5, and cushion block 5 can be multiple, screwed hole can be opened up on cushion block 5, after connecting heated shell 1 and inner bag Wall.
On the other hand, embodiments of the invention additionally provide a kind of wind cooling refrigerator, including evaporator and any of the above-described implementation Defrost heater described in example, the evaporator are arranged in the heating chamber of the defrost heater, the defrost heating The heating bottom plate of device is relative with the bottom surface of evaporator, and the heating side wall of the defrost heater surrounds the side of the evaporator Face is set for one week.
Wind cooling refrigerator provided in an embodiment of the present invention, dress is heated due to including the defrost described in any of the above-described embodiment Put, the same technique effect of the embodiment of above-mentioned defrost heater can be reached.That is, defrost efficiency can be lifted and reduce heating Power consumption, and the residual ice of accumulation in water receiving tank can be prevented.
In a kind of specific embodiment of above-mentioned wind cooling refrigerator, specifically, in addition to defrosting sensor, the defrost sensing Device is used for the surface temperature for measuring the evaporator.Thus, defrost program can be controlled according to the measurement temperature of defrosting sensor Open and close, and the heating power of heater.
Wherein, defrosting sensor can be one can also be it is multiple, when defrosting sensor be one when, can be according to the change The measured value of white sensor carries out overall control to the heating power of heater, and specific control method is:
S1, when the surface temperature value for detecting evaporator is less than the first preset temperature value, defrost pattern is opened, makes heating Housing is heated with the first heating frequency;
S2, when the surface temperature for detecting evaporator is higher than the second preset temperature, reduce the heating of the heated shell Frequency;
S3, when the surface temperature value for detecting evaporator is higher than three preset temperature values, defrost pattern is closed, makes heating Housing stops heating,
Wherein, the 3rd preset temperature value described in the second preset temperature value < described in the first preset temperature value <.
The above method can realize heating process according to the heating frequency of the surface temperature control heated shell of evaporator Dynamic control so that the overall heating temp of heater reduces, heating uniform heat distribution, defrost more thoroughly and power consumption more It is low.
Specifically, control heated shell heating frequency can by adjust heated shell supply voltage dutycycle come real It is existing.The working time of the more big then heated shell of dutycycle is longer, and heating frequency is bigger.Wherein, the dutycycle of supply voltage is Refer to the ratio of high level time shared in a cycle.Such as dutycycle 50%, it is meant that the time shared by high level is 0.5 cycle, remaining 0.5 cycle do not power.In this control method, when defrost starts, frost layer is very thick, defrosting sensor temperature Degree is very low, it is necessary to which heating-up temperature is high, and now the conduction time of supply voltage needs longer, therefore dutycycle now is just high, with Reduction, the rise of defrosting sensor temperature of frost layer, the conduction time can of supply voltage is accordingly reduced, therefore can turn down confession The dutycycle of piezoelectric voltage.
When defrosting sensor is multiple, multiple defrosting sensors are respectively arranged at each surface of evaporator, now may be used The heating power of each wall of heated shell is controlled respectively respectively according to the measured value of multiple defrosting sensors, had The control method of body is:
N1, when detecting that the temperature value of any surface of the evaporator is less than the first preset temperature value, control the table The wall of heated shell corresponding to face is heated;
N2, when detecting that the temperature on the surface of evaporator is higher than the second preset temperature, reduce and add corresponding to the surface The heating frequency of the wall of hot housing;
N3, when detecting that the temperature value on the surface of the evaporator is higher than three preset temperature values, control the surface The wall of corresponding heated shell stops heating,
Wherein, the 3rd preset temperature value described in the second preset temperature value < described in the first preset temperature value <.
The above method can control heated shell each wall accordingly respectively according to the temperature on each surface of evaporator Heating power so that computer heating control is more accurate, more identical with actual frosting situation, so as to further reduce the total of heated shell Body heating temp, the distribution of heating heat is more met, actual demand, defrost are more thorough and power consumption is lower.
In the above method, the wall of heated shell can heat bottom plate, or the heating side wall of any side.
It should be noted that in above-mentioned each method embodiment, the implication of " reduction heating frequency " can continuously be reduced Heating frequency can also reduce heating frequency step by step, not limit herein.For example, when using the side for reducing heating frequency step by step During case, multiple temperature reference values, corresponding heating frequency value (the i.e. dutycycle for supply voltage of each temperature reference value can be set Numerical value), when the temperature value of defrosting sensor measurement reaches some temperature reference value, the dutycycle numerical value of supply voltage is adjusted to Numerical value corresponding to the temperature reference value.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims (11)

1. a kind of evaporator of refrigerator defrost heater, it is characterised in that including heated shell, formed in the heated shell There is the heating chamber for accommodating evaporator of refrigerator, the air inlet connected with the heating chamber is offered in the heated shell and is gone out Air port, the heating chamber are surrounded by heatable heating bottom plate and heating side wall, the bottom of the heating bottom plate and evaporator of refrigerator Face is relative, and the heating side wall is set for one week around the side of the evaporator of refrigerator.
2. evaporator of refrigerator according to claim 1 defrost heater, it is characterised in that the heating bottom plate is leakage Bucket shape structure, and the lowest part of the heating bottom plate offers apopore.
3. evaporator of refrigerator according to claim 1 defrost heater, it is characterised in that described to heat side wall and add Hot bottom plate is made by electric boiling plate, and the electric boiling plate includes substrate, and the inner surface of the substrate is stacked gradually provided with first Insulating barrier, electric heating film and the second insulating barrier.
4. evaporator of refrigerator according to claim 3 defrost heater, it is characterised in that the electric heating film concatenation There is temperature fuse.
5. evaporator of refrigerator according to claim 3 defrost heater, it is characterised in that the substrate is by metal material Material is made, and the substrate is provided with the grounding ports for being used for connecting with earth lead.
6. according to evaporator of refrigerator according to any one of claims 1 to 5 defrost heater, it is characterised in that described Air outlet is located at the top of the heated shell, and the heating side wall includes the first side wall and the second sidewall being oppositely arranged, institute The first side wall is stated to set close to inner container of icebox rear wall,
The air inlet is opened in the lower end of the second sidewall;Or the air inlet includes the first air inlet and the second air intake Mouthful, first air inlet is opened in the lower end of the first side wall, and second air inlet is opened in the second sidewall Lower end.
7. according to evaporator of refrigerator according to any one of claims 1 to 5 defrost heater, it is characterised in that described Heated shell is fixed on inner container of icebox rear wall, and is separated between the heated shell and inner container of icebox rear wall by cushion block.
8. a kind of wind cooling refrigerator, including evaporator, it is characterised in that also including defrost according to any one of claims 1 to 7 Heater, the evaporator are arranged in the heating chamber of the defrost heater, the heating bottom of the defrost heater Plate is relative with the bottom surface of evaporator, and the heating side wall of the defrost heater is set for one week around the side of the evaporator.
9. a kind of control method for being used to carry out the wind cooling refrigerator described in claim 8 defrost, it is characterised in that including following Step:
S1, when the surface temperature value for detecting evaporator is less than the first preset temperature value, defrost pattern is opened, makes heated shell Heated with the first heating frequency;
S2, when the surface temperature for detecting evaporator is higher than the second preset temperature, reduce the heating frequency of the heated shell;
S3, when the surface temperature value for detecting evaporator is higher than three preset temperature values, defrost pattern is closed, makes heated shell Stop heating,
Wherein, the 3rd preset temperature value described in the second preset temperature value < described in the first preset temperature value <.
10. according to the method for claim 9, it is characterised in that the heating frequency for reducing the heated shell includes:
Reduce the dutycycle of the supply voltage of the heated shell.
11. it is a kind of be used for described in claim 8 wind cooling refrigerator carry out defrost control method, it is characterised in that including with Lower step:
N1, when detecting that the temperature value of any surface of the evaporator is less than the first preset temperature value, control the surface pair The wall for the heated shell answered is heated;
N2, when detecting that the temperature on the surface of evaporator is higher than the second preset temperature, reduce heating shell corresponding to the surface The heating frequency of the wall of body;
N3, when detecting that the temperature value on the surface of the evaporator is higher than three preset temperature values, control the surface corresponding Heated shell wall stop heating,
Wherein, the 3rd preset temperature value described in the second preset temperature value < described in the first preset temperature value <.
CN201710837772.4A 2017-09-15 2017-09-15 Evaporator of refrigerator defrost heater, wind cooling refrigerator and defrosting control method Pending CN107477956A (en)

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WO2019128943A1 (en) * 2017-12-27 2019-07-04 青岛海尔股份有限公司 Refrigerator and defrosting control method therefor
CN110887287A (en) * 2018-09-10 2020-03-17 沈阳海尔电冰箱有限公司 Heat exchanger assembly of refrigerator and refrigerator
CN113606847A (en) * 2021-08-10 2021-11-05 合肥美菱物联科技有限公司 Defrosting device for refrigerator evaporator
CN113790570A (en) * 2021-08-12 2021-12-14 珠海格力电器股份有限公司 Refrigerator defrosting control method and refrigerator
CN115854633A (en) * 2022-10-11 2023-03-28 海信冰箱有限公司 Air-cooled refrigerator and defrosting control method thereof
CN115854633B (en) * 2022-10-11 2024-10-22 海信冰箱有限公司 Air-cooled refrigerator and defrosting control method thereof

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Publication number Priority date Publication date Assignee Title
WO2019128943A1 (en) * 2017-12-27 2019-07-04 青岛海尔股份有限公司 Refrigerator and defrosting control method therefor
CN110887287A (en) * 2018-09-10 2020-03-17 沈阳海尔电冰箱有限公司 Heat exchanger assembly of refrigerator and refrigerator
CN113606847A (en) * 2021-08-10 2021-11-05 合肥美菱物联科技有限公司 Defrosting device for refrigerator evaporator
CN113790570A (en) * 2021-08-12 2021-12-14 珠海格力电器股份有限公司 Refrigerator defrosting control method and refrigerator
CN113790570B (en) * 2021-08-12 2022-11-25 珠海格力电器股份有限公司 Refrigerator defrosting control method and refrigerator
CN115854633A (en) * 2022-10-11 2023-03-28 海信冰箱有限公司 Air-cooled refrigerator and defrosting control method thereof
CN115854633B (en) * 2022-10-11 2024-10-22 海信冰箱有限公司 Air-cooled refrigerator and defrosting control method thereof

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Application publication date: 20171215