CN106052262A - Refrigerator and defrosting method for refrigerating chamber of refrigerator - Google Patents
Refrigerator and defrosting method for refrigerating chamber of refrigerator Download PDFInfo
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- CN106052262A CN106052262A CN201610528988.8A CN201610528988A CN106052262A CN 106052262 A CN106052262 A CN 106052262A CN 201610528988 A CN201610528988 A CN 201610528988A CN 106052262 A CN106052262 A CN 106052262A
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- refrigerator
- temperature
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- room
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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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
-
- 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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/02—Detecting the presence of frost or condensate
-
- 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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
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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 embodiment of the invention provides a refrigerator and a defrosting method for a refrigerating chamber of the refrigerator and relates to the field of household appliances. The refrigerator and the defrosting method for the refrigerating chamber of the refrigerator can solve the problem that before a compressor restarts, formed frost cannot be completely molten. According to the specific technical scheme, the defrosting method comprises the steps that the temperature value TF in a freezing chamber and the temperature value Trf of the surface of an evaporator heat exchange plate are obtained; and after the compressor stops, when it is confirmed that TF is larger than T5, a compensating heater is switched on, and when it is confirmed that Trf is larger than T3, the compensating heater is switched off, wherein T5 is the temperature threshold, for controlling the heater to be switched on, of the freezing chamber, T3 is the temperature threshold, for controlling defrosting to be ended, of the surface of the evaporator heat exchange plate, T3 is larger than T4 and smaller than T1, T4 is the temperature threshold, for triggering the compressor to be switched off, of the refrigerating chamber, and T1 is the temperature threshold, for triggering the compressor to be switched on, of the refrigerating chamber. The defrosting method for the refrigerating chamber is used for manufacturing of the refrigerator.
Description
Technical field
The present invention relates to field of household appliances, particularly relate to a kind of refrigerator and the defrosting method of refrigerator room thereof.
Background technology
The refrigeration system of refrigerator includes that compressor, condenser, capillary tube, vaporizer, muffler and flowing are in above-mentioned system
Cold-producing medium in cooling system pipeline.
During cooling system, compressor is opened, and the gaseous refrigerant discharging High Temperature High Pressure from exhaust outlet of compressor is flowed into cold
Condenser, after condenser dispels the heat, cold-producing medium is cooled to the liquid refrigerant of middle temperature high pressure, and cold-producing medium is from gaseous liquefied one-tenth liquid
The phase transition process of state discharges substantial amounts of heat.The liquid refrigerant of the middle temperature high pressure flowed out from condenser drops through capillary tube
Becoming the liquid refrigerant of middle temperature low pressure after pressure, then flow into vaporizer, in vaporizer, cold-producing medium is due to pressure reduction, rapidly
Expanding the cold-producing medium being gasificated into gaseous state, cold-producing medium absorbs amount of heat from surrounding in gasification, thus by vaporizer
The temperature on surface drags down rapidly.
Back, refrigerator room inner bag is close to by the vaporizer of direct cooling refrigerator or air-cooled and direct-cooled refrigerator, and evaporator surface temperature reduces
Time, absorb heat from refrigerator indoor gallbladder so that refrigerator room temperature reduces.
In process of refrigerastion, the moisture in refrigerator room air can be close to the inner bag surface condensation Cheng Shuan of vaporizer.Pressure
After contracting office machine, refrigerator indoor temperature is gone up, and frost heat absorption is melted into water.
But, under hot and humid environment, frequently open cold preservation compartment door, Hot wet air heating carries the fast rapid hardening of substantial amounts of moisture
Knot is on gallbladder surface, refrigerator indoor.If frosting can not be melted completely before compressor restarts, through some refrigeration weeks
After phase, the frosting on inner bag surface will constantly be accumulated.
Frosting accumulation can deteriorate heat transfer efficiency, refrigerator room temperature is now pulled down to setting value and is accomplished by vaporizer and reaches
Lower temperature or prolongation compressor operating time, causing compressor operating efficiency to decline, refrigerator power consumption increases.
Summary of the invention
The application provides a kind of refrigerator and the defrosting method of refrigerator room thereof, it is possible to solution compressor restarts to be tied before
The problem that frost can not melt completely, thus improve compressor operating efficiency, reduce refrigerator power consumption.
For reaching above-mentioned purpose, the application adopts the following technical scheme that
First aspect, it is provided that a kind of refrigerator, including refrigerator room, freezing compartment, controller, compressor and vaporizer,
Being provided with the first temperature sensor in freezing compartment, the one side of evaporator heat exchange plate is fitted with refrigerator indoor gallbladder, on another side
Compensating heater and the second temperature sensor are installed；
Described controller, for receiving the temperature value TF that described first temperature sensor records, after compressor shutdown, when
When determining TF >=T5, open described compensating heater；Wherein T5 is the temperature threshold controlling to open the freezing compartment of described heater
Value；
Described controller, is additionally operable to receive the temperature value Trf that described second temperature sensor records, in compressor shutdown
After, when determining Trf ＞ T3, close described compensating heater；Wherein T3 is to control the evaporator heat exchange plate surface that defrost terminates
Temperature threshold, T4 ＜ T3 ＜ T1, T4 are the temperature threshold of refrigerator room triggering compressor shutdown, and T1 opens for triggering compressor
The temperature threshold of the refrigerator room of machine.
Second aspect, it is provided that the defrosting method of room between a kind of refrigerator cold-storage, refrigerator includes refrigerator room, freezing compartment, pressure
Contracting machine and vaporizer, the one side of evaporator heat exchange plate and the laminating of refrigerator indoor gallbladder, another side is provided with compensating heater,
It is characterized in that, described defrosting method includes:
Obtain the temperature value TF in freezing compartment, and the temperature value Trf on evaporator heat exchange plate surface；
After compressor shutdown, when determining TF >=T5, open described compensating heater, when determining Trf ＞ T3, close
Described compensating heater；
Wherein, T5 is the temperature threshold controlling to open the freezing compartment of described heater, and T3 is to control the steaming that defrost terminates
Send out the temperature threshold on device heat exchanger plates surface；T4 ＜ T3 ＜ T1, T4 are the temperature threshold of the refrigerator room triggering compressor shutdown, T1
For triggering the temperature threshold of the refrigerator room of compressor start.
Refrigerator that embodiments of the invention are provided and the defrosting method of refrigerator room thereof, utilize the first temperature sensor to survey
Temperature value TF in amount freezing compartment, and measurement result is sent to controller, controller judge to open compensating heater
Whether decision condition meets, if then opening compensating heater.
After compressor shutdown, refrigerator room and freezing compartment's temperature are gone up gradually, owing to refrigerator room utilizes defrost to absorb heat
Effect can maintain the relative low temperature of longer time, the rise of refrigerator indoor temperature to be taken to the turn-on temperature that refrigerator room is corresponding
Between, the turn-on temperature required time more corresponding than temperature recovery in freezing compartment to freezing compartment is longer.The fewest the two of frosting degree
Difference between time span is the least, and the difference between frosting degree more many two time span is the biggest.
When refrigerator indoor temperature goes back up to T1, if freezing indoor temperature is maintained at below T5, represent refrigerator room
Close to each self-corresponding turn-on temperature required time length with temperature recovery in freezing compartment, refrigerator room frosting degree is described
Few, in this case without opening compensating heater.Before refrigerator indoor temperature goes back up to T1, if freezing indoor temperature
More than or equal to T5, representing that freezer indoor temperature relatively faster goes back up to turn-on temperature, refrigerator indoor temperature is relative
More slowly go back up to turn-on temperature, illustrate that refrigerator room frosting degree is big, now open described compensating heater, heated by compensation
The frosting of the heat rapid solution refrigerator room of device, it is ensured that before compressor restarts, frosting is melted completely, thus improves pressure
Contracting machine operational efficiency, reduces refrigerator power consumption.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, embodiment will be described below
The accompanying drawing used required in is briefly described.
The structural representation of a kind of refrigerator that Fig. 1 is provided by embodiments of the invention；
Fig. 2 is the side view of room between refrigerator cold-storage in embodiments of the invention；
Fig. 3 is the explanation schematic diagram that cold preservation blower fan opens in embodiments of the invention, cuts out decision condition；
Fig. 4 is the explanation that compensating heater and cold preservation blower fan are opened in embodiments of the invention, closed decision condition
Schematic diagram；
The schematic flow sheet of the defrosting method that Fig. 5 is provided by embodiments of the invention.
Detailed description of the invention
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
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Embodiments of the invention provide a kind of refrigerator and the defrosting method of refrigerator room thereof, and wherein refrigerator specifically refers to direct-cooled
Refrigerator or air-cooled and direct-cooled refrigerator.Direct cooling refrigerator or air-cooled and direct-cooled refrigerator, vaporizer and the stickup of refrigerator indoor gallbladder, evaporator surface temperature
During reduction, absorbing heat from refrigerator indoor gallbladder so that refrigerator room temperature reduces, refrigerator indoor gallbladder pastes the position of vaporizer
Put the position being to be easiest to frosting,
For direct cooling refrigerator or air-cooled and direct-cooled refrigerator, embodiments of the invention provide the defrosting method of a kind of refrigerator room,
Compensating heater is installed in gallbladder easy frosting position, refrigerator indoor, by mode of heating defrost after compressor shutdown.
Further, fan (hereinafter referred to as cold preservation fan), refrigerator after compressor shutdown are installed in refrigerator room
When room temperature rises, by accelerating refrigerator indoor air circulation so that enter between air and frosting that temperature is of a relatively high
Row sufficient heat exchange, one plays defrost effect, and two can reduce refrigerator indoor air temperature.
According to frosting degree, alternately start compensating heater and cold preservation fan carries out defrost, it is ensured that compressor restarts
Frosting before is melted completely.Below in conjunction with embodiment, the technical scheme of the application is elaborated.
Embodiment one
Embodiments of the invention provide a kind of refrigerator 10, shown in Fig. 1, refrigerator 10 include refrigerator room, freezing compartment,
Controller 101, compressor 102 and vaporizer 103.
Being provided with the first temperature sensor 104 in freezing compartment, the first temperature sensor 104 is used for measuring in freezing compartment
Temperature value TF.
In conjunction with the refrigerator room side view shown in Fig. 2, the postnotum 109 of refrigerator 10 and the one side laminating of heat-insulation layer 110, protect
Another side laminating vaporizer 103 (not marking in Fig. 2) of temperature layer 110.The one side of the heat exchanger plates 1031 of vaporizer 103 and refrigerator
Back, room inner bag 111 is fitted, and another side is provided with compensating heater 105 and the second temperature sensor 106, compensating heater
105, the second temperature sensor 106 and evaporation tube 1032 are between heat-insulation layer 110 and heat exchanger plates 1031.Second temperature sensing
Device 106 is for measuring the temperature value Trf on the heat exchanger plates surface of vaporizer 103.
In the course of the work, compressor 102 intermittent start, when the temperature value of refrigerator room is at or above for refrigerator 10
During T1, controller 101 starts compressor 102, refrigerator room and freezing compartment's temperature and all reduces.When the temperature of refrigerator room is equal to
Or during less than T4, controller 101 close compressor 102, refrigerator room and freezing compartment's temperature bottom out.When refrigerator room
Temperature value when going back up to T1, controller 101 is again started up compressor 102, so circulates.
In compressor 102 running, the gallbladder frosting of refrigerator indoor.After compressor 102 is shut down, refrigerator room temperature is returned
Rising, frosting starts to melt, if frosting frosting before compressor 102 restarts can not be melted completely, controller 101 just leaves
Opening compensating heater 105 defrosting, the gap before heater only reruns after compressor 102 is shut down is opened, at compressor 102
Running is not turned on.
The decision condition of compensating heater 105 opened by controller 101:
Controller 101 receives the temperature value TF that the first temperature sensor 104 records, after compressor 102 is shut down, when determining
During TF >=T5, open compensating heater 105.Wherein T5 is the temperature threshold of the freezing compartment controlling heater, and T5 is permissible
It is a default definite value, it is also possible to be the variable set by the actually used situation of refrigerator 10.
After compressor 102 is shut down, refrigerator room and freezing compartment's temperature are slowly gone up, and the temperature recovery of refrigerator indoor is extremely
During certain value, frost starts nature and melts.Refrigerator room frosting degree is the most, and the required defrost time is the longest.Owing to refrigerator room utilizes
Defrost endothermic effect can maintain the relative low temperature of longer time, the start temperature that the rise of refrigerator indoor temperature is corresponding to refrigerator room
Degree required time, the turn-on temperature required time more corresponding than temperature recovery in freezing compartment to freezing compartment is longer.
Before refrigerator indoor temperature goes back up to T1, if freezing indoor temperature is maintained at below T5, represent refrigerator
In room and freezing compartment, temperature recovery is close to each self-corresponding turn-on temperature required time length, and refrigerator room frosting degree is described
Few, in this case without opening compensating heater 105, only need to open until refrigerator indoor temperature is at or above T1
Dynamic compressor 102 starts process of refrigerastion.
Before refrigerator indoor temperature goes back up to T1, if freezing indoor temperature is more than or equal to T5, represent freezing
Between indoor temperature relatively faster go back up to turn-on temperature, refrigerator indoor temperature the most more slowly goes back up to turn-on temperature, says
Bright refrigerator room frosting degree is big, now opens compensating heater 105, by the heat rapid solution cold preservation of compensating heater 105
Between the frosting of room.
Controller 101 cuts out the decision condition of compensating heater 105:
After compensating heater 105 is opened, the temperature value Trf on the heat exchanger plates surface of vaporizer 103 rises.Controller 101
Receive the temperature value Trf that the second temperature sensor 106 records, when determining Trf ＞ T3, close compensating heater 105.Wherein T3
For controlling the temperature threshold on the heat exchanger plates surface that defrost terminates, T4 ＜ T3 ＜ T1.
Optionally, in a kind of specific embodiment, in addition to compensating heater 105, refrigerator 10 also includes cold preservation wind
Machine 107 and three-temperature sensor 108.Cold preservation blower fan 107 and three-temperature sensor 108 are mounted on refrigerator room
In.Shown in Fig. 2, cold preservation blower fan 107 is installed on back, refrigerator room inner bag 111, and three-temperature sensor 108 is installed on
In refrigerator chamber interior walls 113.
Cold preservation blower fan 107 is used for accelerating refrigerator indoor air circulation, promotes the heat exchange between air and frosting, simultaneously
Play defrost and reduce the effect of refrigerator indoor air temperature.Three-temperature sensor 108 is for measuring refrigerator indoor
Temperature value Tr, is sent to controller 101 by measurement result.
The decision condition of cold preservation blower fan 107 opened by controller 101:
After compressor 102 is shut down, when controller 101 determines Tr >=T2, and during Trf≤T3, open cold preservation blower fan 107.
Wherein, T2 is the temperature threshold controlling to open the refrigerator room of cold preservation blower fan 107, T3 ＜ T2 ＜ T1.
Shown in Fig. 3, T4 ＜ T3 ＜ T2 ＜ T1, after compressor 102 is shut down, the temperature value TF (first in freezing compartment
Temperature sensor 104 records), the temperature value Trf (the second temperature sensor 106 records) on the heat exchanger plates surface of vaporizer 103, with
And the temperature value Tr (three-temperature sensor 108 records) of refrigerator indoor gos up gradually.
Being affected by frosting, the rise speed of Trf is slower than Tr rise speed.Frosting degree is the most, and the rise speed of Trf is returned with Tr
The difference of lifting speed is the biggest.
When Tr goes back up to more than or equal to T2, if Trf is more than T3, represent that the rise speed of Trf is gone up fast with Tr
Spend close, illustrate that refrigerator room frosting degree is few, in this case without opening cold preservation blower fan 107, only need to wait until that refrigerator is indoor
When temperature is at or above T1, starts compressor 102 and start process of refrigerastion.
When Tr goes back up to more than or equal to T2, if Trf is less than or equal to T3, represent the rise speed of Trf with
Tr rise speed difference is relatively big, illustrate that refrigerator room frosting degree is big, now opens cold preservation blower fan 107, accelerate air and frosting it
Between heat exchange, promote defrosting.
Controller 101 cuts out the decision condition of cold preservation blower fan 107:
After cold preservation blower fan 107 is opened, Trf rises, and when controller 101 determines Trf ＞ T3, closes cold preservation blower fan 107.
The time point that cold preservation blower fan 107 is opened is Ts, and the time point that cold preservation blower fan 107 cuts out is Te, between Ts to Te
Time period is the time period of cold preservation blower fan 107 work, represents with dash area in Fig. 3.
Shown in Fig. 4, before cold preservation blower fan 107 cuts out after opening, if opening the decision condition of cold preservation blower fan 107
Meet, then open cold preservation blower fan 107.If the decision condition opening compensating heater 105 afterwards meets, then open and compensate heating
Device 105, now compensating heater 105 and cold preservation blower fan 107 work simultaneously, until during Trf ＞ T3, closing cold preservation blower fan 107 He
Compensating heater 105.
In Fig. 4, the time period between the Ts moment to Te moment is the time period of cold preservation blower fan 107 work, in this event section
In the interior Th moment, compensating heater 105 is opened.Time period between the Th moment to Te moment, compensating heater 105 and cold preservation
Blower fan 107 is in duty.Te moment Trf ＞ T3, now cold preservation blower fan 107 and compensating heater 105 are turned off.
The refrigerator that embodiments of the invention are provided, utilizes the temperature value in the first temperature sensor measurement freezing compartment
TF, and measurement result is sent to controller, controller judge whether the decision condition opening compensating heater meets, if
Then open compensating heater.
After compressor shutdown, refrigerator room and freezing compartment's temperature are gone up gradually, owing to refrigerator room utilizes defrost to absorb heat
Effect can maintain the relative low temperature of longer time, the rise of refrigerator indoor temperature to be taken to the turn-on temperature that refrigerator room is corresponding
Between, the turn-on temperature required time more corresponding than temperature recovery in freezing compartment to freezing compartment is longer.The fewest the two of frosting degree
Difference between time span is the least, and the difference between frosting degree more many two time span is the biggest.
When refrigerator indoor temperature goes back up to T1, if freezing indoor temperature is maintained at below T5, represent refrigerator room
Close to each self-corresponding turn-on temperature required time length with temperature recovery in freezing compartment, refrigerator room frosting degree is described
Few, in this case without opening compensating heater.Before refrigerator indoor temperature goes back up to T1, if freezing indoor temperature
More than or equal to T5, representing that freezer indoor temperature relatively faster goes back up to turn-on temperature, refrigerator indoor temperature is relative
More slowly go back up to turn-on temperature, illustrate that refrigerator room frosting degree is big, now open compensating heater, by compensating heater
The frosting of heat rapid solution refrigerator room, it is ensured that before compressor restarts, frosting is melted completely, thus improves compressor
Operational efficiency, reduces refrigerator power consumption.
Embodiment two
Embodiments of the invention two provide the defrosting method of room between a kind of refrigerator cold-storage, are applied to described by embodiment one
Refrigerator, refrigerator includes refrigerator room, freezing compartment, compressor and vaporizer, the one side of evaporator heat exchange plate and refrigerator room
Inner bag is fitted, and another side is provided with compensating heater.Shown in Fig. 5, comprise the following steps:
501, the temperature value TF in freezing compartment is obtained, and the temperature value Trf on evaporator heat exchange plate surface.
In conjunction with the embodiment corresponding to Fig. 1 to Fig. 4, refrigerator can record TF by the first temperature sensor, by second
Temperature sensor records Trf, and the result recorded is sent to the controller of refrigerator by temperature sensor.
502, after compressor shutdown, when determining TF >=T5, open compensating heater, when determining Trf ＞ T3, close
Compensating heater.
After compressor shutdown, the controller of refrigerator determines unlatching according to the value of TF and Trf received or closes
Close compensating heater.
As TF >=T5, open compensating heater.T5 is the temperature threshold of the freezing compartment controlling heater.
As Trf ＞ T3, close compensating heater.T3 is the temperature threshold controlling the evaporator heat exchange plate surface that defrost terminates
Value.T4 ＜ T3 ＜ T1, T4 are the temperature threshold of the refrigerator room triggering compressor shutdown, and T1 is the cold preservation triggering compressor start
Between the temperature threshold of room.
About judging to open, close the principle of compensating heater condition, see the explanation in embodiment one, the most superfluous
State.
503, the temperature value Tr that refrigerator is indoor is obtained.
Step 503 is optional step, when refrigerator indoor location has cold preservation blower fan, performs step 503.Refrigerator can lead to
Crossing three-temperature sensor and record Tr, the result recorded is sent to the controller of refrigerator by three-temperature sensor.
504, after compressor shutdown, when determining Tr >=T2, and during Trf≤T3, cold preservation blower fan is opened, when determining Trf ＞
During T3, close cold preservation blower fan.
After compressor shutdown, the controller of refrigerator determines according to the value of the Tr received and is turned on or off cold preservation wind
Machine.
As Tr >=T2, and during Trf≤T3, open cold preservation blower fan.Wherein, T2 is the refrigerator room controlling to open cold preservation blower fan
Temperature threshold, T3 ＜ T2 ＜ T1.
As Trf ＞ T3, close cold preservation blower fan.
About judging to open, close the principle of cold preservation blower fan condition, see the explanation in embodiment one, the most superfluous
State.
The defrosting method of room between the refrigerator cold-storage that embodiments of the invention are provided, utilizes the first temperature sensor measurement cold
Temperature value TF indoor between freezing, and measurement result is sent to controller, controller judge to open the judgement of compensating heater
Whether condition meets, if then opening compensating heater.
After compressor shutdown, refrigerator room and freezing compartment's temperature are gone up gradually, owing to refrigerator room utilizes defrost to absorb heat
Effect can maintain the relative low temperature of longer time, the rise of refrigerator indoor temperature to be taken to the turn-on temperature that refrigerator room is corresponding
Between, the turn-on temperature required time more corresponding than temperature recovery in freezing compartment to freezing compartment is longer.The fewest the two of frosting degree
Difference between time span is the least, and the difference between frosting degree more many two time span is the biggest.
When refrigerator indoor temperature goes back up to T1, if freezing indoor temperature is maintained at below T5, represent refrigerator room
Close to each self-corresponding turn-on temperature required time length with temperature recovery in freezing compartment, refrigerator room frosting degree is described
Few, in this case without opening compensating heater.Before refrigerator indoor temperature goes back up to T1, if freezing indoor temperature
More than or equal to T5, representing that freezer indoor temperature relatively faster goes back up to turn-on temperature, refrigerator indoor temperature is relative
More slowly go back up to turn-on temperature, illustrate that refrigerator room frosting degree is big, now open compensating heater, by compensating heater
The frosting of heat rapid solution refrigerator room, it is ensured that before compressor restarts, frosting is melted completely, thus improves compressor
Operational efficiency, reduces refrigerator power consumption.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.
Claims (4)
1. a refrigerator, it is characterised in that include refrigerator room, freezing compartment, controller, compressor and vaporizer, freezing
Between indoor location have the first temperature sensor, the one side of evaporator heat exchange plate and the laminating of refrigerator indoor gallbladder, another side is installed
There are compensating heater and the second temperature sensor；
Described controller, for receiving the temperature value TF that described first temperature sensor records, after compressor shutdown, when determining
During TF >=T5, open described compensating heater；Wherein T5 is the temperature threshold controlling to open the freezing compartment of described heater；
Described controller, is additionally operable to receive the temperature value Trf that described second temperature sensor records, after compressor shutdown, when
When determining Trf ＞ T3, close described compensating heater；Wherein T3 is the temperature controlling the evaporator heat exchange plate surface that defrost terminates
Threshold value, T4 ＜ T3 ＜ T1, T4 are the temperature threshold of the refrigerator room triggering compressor shutdown, and T1 is the cold of triggering compressor start
The temperature threshold of room between Tibetan.
Refrigerator the most according to claim 1, it is characterised in that refrigerator indoor location has cold preservation blower fan and the 3rd temperature
Sensor；
Described controller, is additionally operable to receive the temperature value Tr that described three-temperature sensor records, after compressor shutdown, when really
Determine Tr >=T2, and during Trf≤T3, open described cold preservation blower fan, when determining Trf ＞ T3, close described cold preservation blower fan；
Wherein, T2 is the temperature threshold controlling to open the refrigerator room of described cold preservation blower fan, T3 ＜ T2 ＜ T1.
3. a defrosting method for room between refrigerator cold-storage, refrigerator includes refrigerator room, freezing compartment, compressor and vaporizer,
The one side of evaporator heat exchange plate is fitted with refrigerator indoor gallbladder, another side is provided with compensating heater, it is characterised in that described
Defrosting method includes:
Obtain the temperature value TF in freezing compartment, and the temperature value Trf on evaporator heat exchange plate surface；
After compressor shutdown, when determining TF >=T5, open described compensating heater, when determining Trf ＞ T3, close described
Compensating heater；
Wherein, T5 is the temperature threshold controlling to open the freezing compartment of described heater, and T3 is to control the vaporizer that defrost terminates
The temperature threshold on heat exchanger plates surface；T4 ＜ T3 ＜ T1, T4 are the temperature threshold of the refrigerator room triggering compressor shutdown, and T1 is tactile
Send out the temperature threshold of the refrigerator room of compressor start.
Defrosting method the most according to claim 3, it is characterised in that refrigerator indoor location has cold preservation blower fan, describedization
Frost method also includes:
Obtain the temperature value Tr that refrigerator is indoor；
After compressor shutdown, when determining Tr >=T2, and during Trf≤T3, open described cold preservation blower fan, when determining Trf ＞ T3,
Close described cold preservation blower fan；Wherein, T2 is the temperature threshold controlling to open the refrigerator room of described cold preservation blower fan, T3 ＜ T2 ＜
T1。
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| CN201610528988.8A CN106052262B (en) | 2016-07-06 | 2016-07-06 | A kind of defrosting method of refrigerator and its refrigerator room |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610528988.8A CN106052262B (en) | 2016-07-06 | 2016-07-06 | A kind of defrosting method of refrigerator and its refrigerator room |
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| CN106052262A true CN106052262A (en) | 2016-10-26 |
| CN106052262B CN106052262B (en) | 2019-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107504747A (en) * | 2017-08-28 | 2017-12-22 | 合肥美的电冰箱有限公司 | Defrosting control method, control system and refrigerator |
| CN107940873A (en) * | 2017-11-17 | 2018-04-20 | 合肥美的电冰箱有限公司 | Defrosting method, defrosting system, computer-readable recording medium and refrigeration plant |
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| JPH11132634A (en) * | 1997-10-31 | 1999-05-21 | Matsushita Refrig Co Ltd | Refrigerator |
| KR101179371B1 (en) * | 2009-06-18 | 2012-09-07 | 히타치 어플라이언스 가부시키가이샤 | Refrigerator |
| CN201803567U (en) * | 2010-09-17 | 2011-04-20 | 海信容声(广东)冰箱有限公司 | Defrosting control system of refrigerator |
| CN102679685B (en) * | 2012-05-08 | 2014-07-30 | 河南新飞电器有限公司 | Air-cooled refrigerator and energy-saving defrosting control method thereof |
| CN104833167A (en) * | 2015-02-27 | 2015-08-12 | 河南新飞电器有限公司 | Air cooling refrigerator defrosting method |
| CN105674669B (en) * | 2016-02-02 | 2017-10-27 | 河南新飞电器有限公司 | A kind of defrosting method of dual system wind cooling refrigerator |
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2016
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504747A (en) * | 2017-08-28 | 2017-12-22 | 合肥美的电冰箱有限公司 | Defrosting control method, control system and refrigerator |
| CN107940873A (en) * | 2017-11-17 | 2018-04-20 | 合肥美的电冰箱有限公司 | Defrosting method, defrosting system, computer-readable recording medium and refrigeration plant |
| WO2019095909A1 (en) * | 2017-11-17 | 2019-05-23 | 合肥美的电冰箱有限公司 | Defrosting method, defrosting system, computer readable storage medium and refrigeration device |
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