CN107062771B - Defrosting control method and wind cooling refrigerator - Google Patents
Defrosting control method and wind cooling refrigerator Download PDFInfo
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- CN107062771B CN107062771B CN201710169911.0A CN201710169911A CN107062771B CN 107062771 B CN107062771 B CN 107062771B CN 201710169911 A CN201710169911 A CN 201710169911A CN 107062771 B CN107062771 B CN 107062771B
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- refrigeration
- defrost
- refrigeration equipment
- control method
- default
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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
- F25D21/008—Defroster control by timer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
- F25D21/004—Control mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/02—Timing
Abstract
A kind of defrosting control method and wind cooling refrigerator, the defrosting control method include: the operation ratio for obtaining refrigeration equipment；When operation ratio is default operation ratio, after refrigeration equipment duty is cooled to break point, control refrigeration equipment continues to run refrigeration；When refrigeration equipment operation refrigeration to default halt condition, control refrigeration equipment stops working；When refrigeration equipment stops working, the work of defrost equipment is controlled after being spaced the first preset time；After defrost, refrigeration air door is opened；After refrigerating door opening, refrigeration equipment booting is controlled after being spaced the second preset time.The wind cooling refrigerator is realized using above-mentioned defrosting control method.Above-mentioned defrosting control method and wind cooling refrigerator, refrigeration reduces freezing chamber rise temperature during defrost by the way of shunting hot-air after pre-cooling and defrost before defrost, while shortening the time of defrost convalescence, reduces defrost increment, reduces power consumption.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, more particularly to a kind of defrosting control method and wind cooling refrigerator.
Background technique
Currently, existing wind cooling refrigerator for example freeze in defrost raising middle flask to freezing indoor evaporator in defrost process
Article temperature can increase 3 DEG C or so, after defrost, due to indoor temperature during defrost temperature ascensional range compared with
Height, compressor need long-time continuous operation room temperature could drop to normal temperature by between, have not only wasted electric energy but also there are food
Rotten risk.
With the implementation of new national standard, the requirement to product temperature stability and energy consumption is higher and higher, especially air-cooled frostless
Defrost process in refrigerator, 3 DEG C of maximum temperature during defrost no more than stable operation maximum temperature.However, at present very
Temperature recovery during defrost of more refrigerators, energy consumption of refrigerator is high, and with desired promotion, such refrigerator will no longer satisfy new mark
Quasi- requirement.
Summary of the invention
Based on this, it is necessary to for the high technical problem of defrost process energy consumption of refrigerator, provide a kind of defrosting control method and
Wind cooling refrigerator.
A kind of defrosting control method, the defrosting control method include: the operation ratio for obtaining refrigeration equipment；When the operation ratio
When to preset operation ratio, after the refrigeration equipment duty is cooled to break point, controlling the refrigeration equipment and continuing to run refrigeration；
It when refrigeration equipment operation refrigeration to default halt condition, controls the refrigeration equipment and stops working, wherein is default to shut down
Condition refers to that the temperature of compartment is reduced to the temperature value of conventional break point or less；When the refrigeration equipment stops working,
The work of control defrost equipment is after being spaced the first preset time to start to carry out defrost；After defrost, refrigeration air door is opened；When
After the refrigeration door opening, the refrigeration equipment booting is controlled after being spaced the second preset time to carry out conventional refrigerant work
Make.
The operation ratio for obtaining refrigeration equipment in one of the embodiments, comprising: obtain refrigeration in cooling cycle and set
Standby operation ratio.
The default operation ratio is less than 85%~95% in one of the embodiments, and the default halt condition is
It is more than 50 minutes~70 points that target cryogenic temperature, which continues to run the time of refrigeration lower than 2 DEG C~4 DEG C of break point or refrigeration equipment,
Clock.
The default operation ratio is less than 90% in one of the embodiments, and the default halt condition is target system
It is more than 60 minutes that cold temperature, which continues to run the time of refrigeration lower than 3 DEG C of break point or refrigeration equipment,.
The default operation ratio is greater than 85%~95% in one of the embodiments, and the default halt condition is
It is more than 20 minutes~40 points that target cryogenic temperature, which continues to run the time of refrigeration lower than 2 DEG C~4 DEG C of break point or refrigeration equipment,
Clock.
The default operation ratio is greater than 90% in one of the embodiments, and the default halt condition is target system
It is more than 30 minutes that cold temperature, which continues to run the time of refrigeration lower than 3 DEG C of break point or refrigeration equipment,.
First preset time is 1.5 minutes~3.5 minutes in one of the embodiments,.
First preset time is 2 minutes in one of the embodiments,.
It is described after the refrigeration door opening in one of the embodiments, it is controlled after being spaced the second preset time
The refrigeration equipment booting is made to carry out conventional refrigerant work, comprising: after the refrigeration door opening, be spaced 1.5 minutes
After~4.5 minutes, the compressor operating of the refrigeration equipment is controlled with to being pre-chilled；In pre-cooling 0.5 minute~3.5 minutes
Afterwards, the blower work for controlling the refrigeration equipment is freezed with refrigerator room and freezing compartment.
A kind of wind cooling refrigerator, the wind cooling refrigerator are realized using above-mentioned defrosting control method.
Pre-cooling mode is arranged according to the size of operation ratio in above-mentioned defrosting control method and wind cooling refrigerator, between reducing before defrost
Room temperature reduces maximum temperature during defrost；Air door is preferentially opened after defrost, rising hot gases is made to enter refrigerating chamber,
Avoid excessive heat from entering freezing chamber and temperature after defrost is caused to continue to increase, so using be pre-chilled before defrost and defrost after refrigerate
The mode for shunting hot-air reduces freezing chamber rise temperature during defrost, while shortening the time of defrost convalescence, drops
Low defrost increment reduces power consumption.
Detailed description of the invention
Fig. 1 is the step schematic diagram of defrosting control method in one embodiment；
Fig. 2 is the partial structural diagram of wind cooling refrigerator；
Fig. 3 is the control principle schematic diagram of wind cooling refrigerator；
Fig. 4 is the step schematic diagram of defrosting control method in another embodiment.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.
Referring to Fig. 1, its step schematic diagram for defrosting control method in one embodiment, the defrosting control method 10 packet
Include following steps:
Step S101: the operation ratio of refrigeration equipment is obtained.
Specifically, refrigeration equipment refers to the equipment in defrosting refrigerator for refrigeration, such as can reduce when refrigeration equipment work
The temperature of refrigerator room and freezing compartment in defrosting refrigerator, so that refrigerator room and the temperature of freezing compartment meet preset system
Cold requirement.For example, the operation of refrigeration equipment has periodicity, especially for defrosting refrigerator, refrigeration equipment needs to stop when defrost
Work, so that the defrost equipment in defrosting refrigerator can operate normally, to achieve the purpose that defrost.
Within a duty cycle, the operation ratio of refrigeration equipment refer to that the refrigeration equipment run within the period when
Between account for the ratio of entire duty cycle, such as operation ratio indicates that for another example operation ratio is indicated with score with percentage.For example,
The valuation of refrigerator room and the temperature of freezing compartment in the available defrosting refrigerator of operation ratio by obtaining refrigeration equipment.
In one embodiment, the acquisition modes of the operation ratio of refrigeration equipment can be to be obtained in such a way that detection calculates, example
Such as by detecting the available machine time point of refrigeration equipment and the time point of current detection within a duty cycle, by current detection
Time point subtract refrigeration equipment available machine time point it can be learnt that refrigeration equipment continuous working period, the continuous working period accounts for
The ratio of duty cycle is the operation ratio of the refrigeration equipment.
Step S102: when the operation ratio is default operation ratio, after the refrigeration equipment duty is cooled to break point,
It controls the refrigeration equipment and continues to run refrigeration.
Specifically, presetting operation ratio is pre-set, the operation ratio as reference value.For example, default operation ratio according to
The wind cooling refrigerator of different platform can have different numerical value.For example, break point refers to the temperature nodes that refrigeration equipment is shut down, that is, make
The temperature that refrigerator room and freezing compartment in defrosting refrigerator are reduced when cool equipment works, when refrigerator room in defrosting refrigerator and freezing
When the temperature of compartment is reduced to a certain temperature nodes, refrigeration equipment shutdown does not work, and the temperature nodes corresponding at this time are also referred to as stopped
Machine point.
For example, after having got the operation ratio of refrigeration equipment in step s101, by the operation ratio of the refrigeration equipment and in advance
If operation ratio compares, when the operation ratio is default operation ratio, refrigeration equipment is controlled when duty is cooled to break point
It does not shut down, and is to continue with control refrigeration equipment operation refrigeration.It is found that refrigeration equipment continues to run refrigeration after having crossed break point
Movement will continue the temperature of refrigerator room and freezing compartment in reduction defrosting refrigerator, so that the temperature of refrigerator room and freezing compartment
Degree is reduced to the temperature nodes of shutdown or less.
Step S103: it when refrigeration equipment operation refrigeration to default halt condition, controls the refrigeration equipment and stops
Work.
Specifically, default halt condition refers to pre-set new break point, which is less than refrigeration equipment
Conventional break point, i.e., the corresponding temperature value of new break point are less than the corresponding temperature of break point under refrigeration equipment conventional sense
Value.Purpose is so that refrigerator room and the temperature of freezing compartment are reduced to the temperature nodes of conventional shutdown or less.For example, refrigeration
Equipment, which stops working, refers to that refrigeration equipment is out of service, and refrigerator room and the temperature of freezing compartment be also no longer in defrosting refrigerator at this time
Continue to reduce.
It is appreciated that in order to avoid refrigeration equipment is unlimitedly run, both waste of energy or ideal defrost control was not achieved
System, when refrigeration equipment operation refrigeration to default halt condition, control refrigeration equipment stops working, to suspend the system of refrigeration equipment
Cold work.Such purpose is also for the progress convenient for subsequent defrost work.Meanwhile by setting default halt condition
It is in order to avoid refrigeration equipment is unlimitedly run and wastes power supply.
For example, continuing to control refrigeration equipment operation refrigeration in step s 102, running more than refrigeration equipment normally
Break point after still proceed with operation refrigeration a period of time.For example, in defrosting refrigerator refrigerator room and freezing compartment temperature quilt
When being reduced to preset temperature value, which corresponds to default halt condition, freezes at this time when refrigeration equipment is run
To when presetting halt condition, control refrigeration equipment stops working.
Step S104: when the refrigeration equipment stops working, defrost equipment work is controlled after being spaced the first preset time
Make to start to carry out defrost.
Specifically, after the refrigeration equipment of refrigerator is out of service, pressure not yet balances (such as evaporator in refrigerator refrigeration system
Interior pressure value be greater than capillary in pressure value), the cold air of high-voltage end will continue to low-pressure end flow, therefore system still in
Refrigerating state.Therefore, it in order to more efficiently defrost to refrigerator, needs when first after refrigeration equipment stops working is default
Between after, then carry out defrost.Since within this period of time to the first preset time node after refrigeration equipment stops working, system
The pressure of each section is being restored in cooling system, therefore carries out defrost again after waiting systems complete equipilibrium, and defrost can be improved in this way
Efficiency.
In the present embodiment, defrost equipment refers to that the member for the frosting for being used to remove evaporator surface in refrigerator plays part or sets
It is standby, it can be heater strip, heating resistor or other heating devices etc..For example, defrost heater strip starts work when defrost starts
To make, heating is so that the temperature of evaporator surface rises, so that the heated thawing of the frosting of evaporator surface, to remove evaporator
The frosting on surface.
When defrosting sensor detects when exiting temperature of defrost, defrost heater strip stops working, and defrost terminates at this time.Example
Such as, the temperature for exiting temperature and referring to that defrost terminates during defrost of defrost.For example, the temperature of evaporator surface increases suddenly
To a certain numerical value, illustrates that heated melt of the frosting of evaporator surface is fully completed at this time, need to exit heating schedule, prevent from evaporating
Device surface heat damage and energy saving, what which just referred to defrost exits temperature.
Step S105: after defrost, refrigeration air door is opened.
Specifically, when defrosting sensor detects when exiting temperature of defrost, defrost heater strip stops working, defrost at this time
Terminate.For example, opening refrigeration air door immediately after defrost, the heat that evaporator surface generates at this time will be flowed out from air duct
And enter refrigerator room after refrigerating air door.In this way, evaporator surface generate heat can be transmitted to respectively refrigerator room and
Freezing compartment, for being fully transmitted to freezing compartment compared to the heat that existing evaporator surface generates, using the present embodiment
Mode freezing compartment's temperature recovery can be prevented excessively high, influence the refrigerating effect of freezing compartment.
For example, defrost exits temperature generally at 0 DEG C or more, it can be 3 DEG C, 5 DEG C or 7 DEG C.It is found that defrost is exited
It is not high for the opposite refrigeration compartment temperature of temperature, even if too big shadow can't be caused to its compartment temperature into refrigerator room
Ring because refrigerator room after step S102 and step S103 temperature it is relatively low, the heat into refrigerator room can quilt
Absorb, if but heat will cause freezer temperature and go up excessively high, therefore in advance open refrigeration air door into freezing compartment, will
Part rises hot-air water conservancy diversion to refrigerating chamber, reduces the temperature recovery of freezing compartment, improves the refrigeration effect of refrigerator on the whole.
Step S106: after the refrigeration door opening, the refrigeration equipment is controlled after being spaced the second preset time and is opened
Machine is to carry out conventional refrigerant work.
Specifically, after refrigerating door opening, under the action of heat transmitting, heat caused by defrost process will be from refrigeration wind
Door enters refrigerator room.At this point, the temperature of refrigerator room will rise, in order to not influence the conventional refrigeration function of refrigerator room,
After the second preset time after refrigerating door opening, the refrigeration equipment booting is controlled to carry out conventional refrigerant work, thus will
The temperature of refrigerator room carries out conventional control.For example, conventional control refers to after by step S106, refrigeration equipment system
Cold break point is conventional break point
It is found that the transmittance process of heat needs the regular hour, refrigeration cannot be immediately controlled after refrigerating door opening and set
Standby booting, but need after being spaced the second preset time, largely enter refrigerator room to heat caused by defrost process
Control the refrigeration equipment booting again afterwards.The length of second preset time can be adjusted according to the size of the power of different refrigerators
Section, such as 3 minutes, such as 4 minutes, for another example 5 minutes etc..In this way, after the second preset time, due to refrigeration air door
It opens, refrigeration work at this time does not need to reopen refrigeration air door, directly controls refrigeration equipment booting.
It is noted that defrosting control method of the invention can be intelligent control rule, timing type control rule
Deng.For example, intelligent control rule refers to intelligent control type, intelligence is carried out according to the operating status of refrigerator by computer processor
It adjusts；For another example, timing type control rule refers to is adjusted by way of setting interval time.Such as defrost control of the invention
Method processed can intervene in the conventional refrigerant period of refrigerator, and for another example defrosting control method of the invention can be in the period pre-seted
Interior intervention can also targetedly be controlled according to different refrigerator platforms.
It is appreciated that pre-cooling mode is arranged in a cooling cycle before defrost, compartment temperature before defrost, reductionization are reduced
Maximum temperature during frost.Air door is preferentially opened after defrost, rising hot gases is made to enter refrigerating chamber, and excessive heat is avoided to enter
Freezing chamber and cause temperature after defrost to continue to increase.In this way, shunting the side of hot-air using refrigeration after pre-cooling before defrost and defrost
Formula reduces freezing chamber rise temperature during defrost, while shortening the time of defrost convalescence, reduces defrost increment, drop
Low power consumption.
In one embodiment, defrosting control method of the invention further includes defrost time detection step before step S101
It is rapid: to detect the defrost time of refrigerator；When refrigerator reaches the default defrost time, if refrigerator is in open state, enter step
S101.Specifically, when detecting that refrigerator reaches the default defrost time, refrigerator operating status is detected first, is stopped if refrigerator is in
It is regular (starting defrosting control method) to enter this defrost for machine state after then waiting refrigerator to run again, if refrigerator is in booting
State then immediately enters this defrost rule, so can be to avoid before defrost starts, and refrigerator compartment temperature is at the highest notch temperature
Degree.
In one embodiment, in step s101, the operation ratio for obtaining refrigeration equipment includes: to obtain refrigeration in cooling cycle to set
Standby operation ratio.That is, in a cooling cycle, obtaining the time that the refrigeration equipment is run in the cooling cycle is accounted for
The ratio of entire cooling cycle.Cooling cycle, which can be previous defrost, to be terminated to terminate the time experienced to the latter defrost.
Cooling cycle may also mean that previous refrigeration terminates to the latter defrost to freeze the time experienced.
In this way, by the operation ratio for obtaining refrigeration equipment in a cooling cycle, it is current in the available cooling cycle
Refrigerator room and freezing compartment temperature, thus correspondingly control refrigerator refrigeration equipment duty be cooled to break point after continue
The new break point or refrigeration equipment of operation refrigeration continues to run refrigeration duration, so that refrigeration equipment is effective
Working time in can reasonably reduce the temperature of refrigerator room and freezing compartment to target temperature.
In one embodiment, the default operation ratio is less than 85%~95%, and the default halt condition is target refrigeration
It is more than 50 minutes~70 minutes that temperature, which continues to run the time of refrigeration lower than 2 DEG C~4 DEG C of break point or refrigeration equipment,.For example,
The default operation ratio is less than 85%, and the default halt condition is that target cryogenic temperature is lower than 2 DEG C~4 DEG C of break point；Again
Such as, the default operation ratio is less than 85%, and the time that refrigeration equipment continues to run refrigeration is more than 50 minutes~70 minutes.Example
Such as, the default operation ratio is less than 95%, and the default halt condition is that target cryogenic temperature is lower than 2 DEG C~4 DEG C of break point；
For another example, the default operation ratio is less than 95%, and the time that refrigeration equipment continues to run refrigeration is more than 50 minutes~70 minutes.
For example, the default operation ratio is less than 85%, the default halt condition is target cryogenic temperature lower than shutdown
2 DEG C of point；For another example, the default operation ratio is less than 85%, and the default halt condition is that target cryogenic temperature is lower than break point 4
℃.For example, the default operation ratio is less than 95%, the default halt condition is that target cryogenic temperature is lower than 2 DEG C of break point；
For another example, the default operation ratio is less than 95%, and the default halt condition is that target cryogenic temperature is lower than 4 DEG C of break point.
For example, the default operation ratio is less than 85%, the default halt condition is that refrigeration equipment continues to run refrigeration
Time be more than 50 minutes；For another example, the default operation ratio is less than 85%, and the default halt condition is refrigeration equipment continuation
The time of operation refrigeration is more than 70 minutes.For example, the default operation ratio is less than 95%, the default halt condition is refrigeration
The time that equipment continues to run refrigeration is more than 50 minutes；For another example, the default operation ratio is the default shutdown item less than 95%
Part is that continue to run the time of refrigeration be more than 70 minutes to refrigeration equipment.
In one embodiment, the default operation ratio is less than 90%, and the default halt condition is that target cryogenic temperature is low
It is more than 60 minutes in the time that 3 DEG C of break point or refrigeration equipment continue to run refrigeration.For example, the default operation ratio be less than
90%, the default halt condition is that target cryogenic temperature is lower than 3 DEG C of break point；For another example, the default operation ratio be less than
90%, the default halt condition is that continue to run the time of refrigeration be more than 60 minutes to refrigeration equipment.
In one embodiment, the default operation ratio is greater than 85%~95%, and the default halt condition is target refrigeration
It is more than 20 minutes~40 minutes that temperature, which continues to run the time of refrigeration lower than 2 DEG C~4 DEG C of break point or refrigeration equipment,.For example,
The default operation ratio is greater than 85%~95%, and the default halt condition is that target cryogenic temperature is lower than break point 2 DEG C~4
℃；For another example, the default operation ratio is greater than 85%~95%, and the default halt condition is that refrigeration equipment continues to run refrigeration
Time be more than 20 minutes~40 minutes.
For example, the default operation ratio is greater than 85%, the default halt condition is target cryogenic temperature lower than shutdown
2 DEG C~4 DEG C of point；For another example, the default operation ratio is greater than 85%, and the default halt condition is that refrigeration equipment continues to run system
The cold time is more than 20 minutes~40 minutes.For example, the default operation ratio is greater than 95%, the default halt condition is mesh
It marks cryogenic temperature and is lower than 2 DEG C~4 DEG C of break point；For another example, the default operation ratio is greater than 95%, and the default halt condition is
The time that refrigeration equipment continues to run refrigeration is more than 20 minutes~40 minutes.
For example, the default operation ratio is greater than 85%~95%, the default halt condition is that target cryogenic temperature is low
In 2 DEG C of break point；For another example, the default operation ratio is greater than 85%~95%, and the default halt condition is target refrigeration temperature
Degree is lower than 4 DEG C of break point.For example, the default operation ratio is greater than 85%~95%, the default halt condition is that refrigeration is set
It is more than 20 minutes for the time of refrigeration is continued to run；For another example, the default operation ratio is greater than 85%~95%, and described preset is stopped
Machine condition is that continue to run the time of refrigeration be more than 40 minutes to refrigeration equipment.
In one embodiment, the default operation ratio is greater than 90%, and the default halt condition is that target cryogenic temperature is low
It is more than 30 minutes in the time that 3 DEG C of break point or refrigeration equipment continue to run refrigeration.For example, the default operation ratio be greater than
90%, the default halt condition is that target cryogenic temperature is lower than 3 DEG C of break point.For another example, the default operation ratio be greater than
90%, the default halt condition is that continue to run the time of refrigeration be more than 30 minutes to refrigeration equipment.
In one embodiment, first preset time is 1.5 minutes~3.5 minutes.For example, first preset time is
1.5 minute；For another example, first preset time is 3.5 minutes.Further, first preset time is 2 minutes.Also
It is to say, when the refrigeration equipment stops working, the work of control defrost equipment is after being spaced 1.5 minutes~3.5 minutes to start
Carry out defrost.For example, the work of control defrost equipment is after being spaced 1.5 minutes to start when the refrigeration equipment stops working
Carry out defrost.For another example, when the refrigeration equipment stops working, the work of control defrost equipment is after being spaced 3.5 minutes to start
Carry out defrost.Further, when the refrigeration equipment stops working, the work of control defrost equipment is after being spaced 2 minutes to open
Begin to carry out defrost.
In this way, within this period that refrigeration equipment stops working to control defrost equipment work to start to carry out defrost,
By being spaced the first preset time, to balance the pressure in refrigerator refrigeration system, so that the refrigeration of refrigeration equipment does not influence defrost
Process, the defrosting effect after can so refrigeration equipment being made to stop working is more preferable, significantly reduces the energy consumption of wind cooling refrigerator.
In one of the embodiments, in step s 106, it is switched on after refrigerating door opening to refrigeration equipment to carry out
Between conventional refrigerant work, since refrigeration equipment includes compressor and blower, in order to which the refrigeration effect of refrigerator is better achieved,
In second preset time, the work of the compressor and blower of the refrigeration equipment is also controlled respectively.For example, the second preset time is
2 minutes~8 minutes, after being spaced 1.5 minutes~4.5 minutes, the compressor operating of the refrigeration equipment was controlled with pre- to carrying out
It is cold；After pre-cooling 0.5 minute~3.5 minutes, the blower for controlling the refrigeration equipment works with refrigerator room and freezing compartment's system
It is cold.
In one embodiment, after the refrigeration door opening, after being spaced 1.5 minutes~4.5 minutes, the refrigeration is controlled
The compressor operating of equipment is with to being pre-chilled；After pre-cooling 0.5 minute~3.5 minutes, the blower of the refrigeration equipment is controlled
Work is freezed with refrigerator room and freezing compartment.
For example, after being spaced 1.5 minutes, controlling the compressor work of the refrigeration equipment after refrigeration door opening
Make with to being pre-chilled；After pre-cooling 3.5 minutes, the blower for controlling the refrigeration equipment works with refrigerator room and freezing compartment
Refrigeration.For another example, after the refrigeration door opening, interval 4.5 minutes after, control the compressor operating of the refrigeration equipment with
To being pre-chilled；After pre-cooling 3.5 minutes, the blower for controlling the refrigeration equipment works with refrigerator room and freezing compartment's system
It is cold.
For example, after being spaced 3 minutes, controlling the compressor operating of the refrigeration equipment after refrigeration door opening
With to being pre-chilled；After pre-cooling 2 minutes, the blower for controlling the refrigeration equipment works with refrigerator room and freezing compartment's system
It is cold.
In this way can be preferably by the digestion of thermal temperature caused by defrost in refrigerating chamber, while making refrigeration, freezing
The refrigeration effect of compartment is able to from recovery conventional refrigerant.
It is noted that the wind cooling refrigerator is using any of the above-described embodiment the present invention also provides a kind of wind cooling refrigerator
Defrosting control method is realized.That is, the present invention also provides a kind of defrosting control method using any of the above-described embodiment is real
Existing wind cooling refrigerator, the defrost rule of the wind cooling refrigerator are the defrosting control method of any of the above-described embodiment.
In this way, pre-cooling mode can be arranged according to the size of operation ratio in the wind cooling refrigerator, compartment temperature before defrost, drop are reduced
Maximum temperature during low defrost；Air door is preferentially opened after defrost, rising hot gases is made to enter refrigerating chamber, avoids excessive heat
Amount enters freezing chamber and temperature after defrost is caused to continue to increase, and so shunts hot-air using refrigeration after pre-cooling before defrost and defrost
Mode reduce freezing chamber rise temperature during defrost, while shortening the time of defrost convalescence, reduce defrost increasing
Amount reduces power consumption.
Referring to Fig. 2, it is the partial structural diagram of wind cooling refrigerator, now applied with defrosting control method of the invention
It is illustrated for wind cooling refrigerator, the wind cooling refrigerator is by compressor, condenser, capillary, evaporator, blower, refrigeration air door, change
White heater strip composition.Compressor is refrigerant pressurization, provides power for refrigeration system.Condenser is the liquefied master of refrigerant heat dissipation
Want place.Capillary-compensated decompression, reduces refrigerant evaporating temperature.Evaporator is the main place of refrigerant vaporization refrigeration.Wind
Machine is the power of the air-cooled circulation of refrigerating.Airdoor control refrigeration is refrigerated, air door opening when refrigeration needs to freeze, refrigeration temperature
Degree reaches rear air door and closes.Defrost heater strip is used to heating evaporation device, melts the ice of evaporator surface.
Referring to Fig. 2, its be wind cooling refrigerator control principle schematic diagram, for example, in wind cooling refrigerator be arranged control module,
Acquisition module and implementation module.For example, control module, that is, refrigerator mainboard, for storing default control rule.For example, control module
It is inside preset with the corresponding switching on and shutting down point of each gear of each compartment, such as 4 DEG C of setting, starting point is 4.5 DEG C, and Burnout is 3.5 DEG C.
For example, being preset with the specific defrost period, such as every the primary frost of 20hization.For example, being preset with specific defrost exits temperature,
Such as it is 6 DEG C~8 DEG C that temperature is exited in defrost.For example, acquisition module includes freezing sensor, refrigeration sensor, defrosting sensor
Deng for acquiring freezing chamber, refrigerating chamber and defrost temperature.For example, implementing module includes that compressor, blower, air door and defrost add
Heated filament, for implementing the instruction that control module is issued.
In one embodiment, control module obtains the defrost shape of refrigerator by detecting defrost heater strip and defrosting sensor
State.For example, control module has processor, for handling the defrost state for getting refrigerator.
Referring to Fig. 4, its step schematic diagram for defrosting control method in another embodiment, initially enters defrost rule
After (i.e. defrosting control method), when detecting that refrigerator reaches the default defrost time, refrigerator operating status is detected first, if refrigerator
Enter this defrost rule in shutdown status, then after waiting refrigerator to run again, if refrigerator is in open state, immediately enters
This defrost rule, so can be to avoid before defrost starts, and refrigerator compartment temperature is at the highest notch temperature.
Firstly, detecting the operation ratio of refrigerator in the upper defrost period.If operation ratio is less than 90%, in the cooling cycle system
It is as cold as continuing to run until after break point refrigeration to shutting down after -3 DEG C of break point, if refrigeration is to continuous operation 60min after break point
Not up to -3 DEG C of break point, then refrigerator forced stoppage.If operation ratio >=90%, freeze in the cooling cycle subsequent to break point
Reforwarding row is shut down after freezing to -3 DEG C of break point, if being not up to -3 DEG C of break point after refrigerator continuous operation 30min, ice
Case forced stoppage.It can so guarantee that defrost starts preceding refrigerator compartment temperature and is in temperature minimum point, defrost can be effectively reduced
Temperature increase amount in the process.
Then, after refrigerator is out of service, pressure is not yet balanced in refrigerator refrigeration system, and high pressure section will continue to low-pressure end stream
It is dynamic, therefore system is still in refrigerating state, thus will after refrigerator 2min out of service, etc. after systems complete equipilibrium, defrost adds
Heated filament is started to work again, until defrosting sensor detects that temperature, stopping defrost being exited in defrost.
Secondly, being first turned on refrigeration air door after defrost stops；Defrost exits general 7 DEG C of temperature or so, this temperature is relatively cool
It is not high for hiding compartment temperature, even if into refrigerator room too much influence can't be caused to its compartment temperature, if but its
Into freezing compartment, it is excessively high to will cause freezer temperature rise, therefore in advance opens refrigeration air door, it will part rising hot-air
Water conservancy diversion reduces the temperature recovery of freezing compartment to refrigerating chamber.
Finally, defrost starts compressor after stopping 3min, to being pre-chilled around fin, after 2min is pre-chilled, start blower
For refrigeration, freezing compartment's refrigeration, after defrost after first cooling cycle, each module component of implementing is adopted according to refrigerator sensor
Collect temperature and carries out normal start-stop control.
It should be noted that the time and temperature of above each embodiment is a kind of embodiment, numerical values recited can
To be adjusted according to practical refrigerator situation.
The present invention is used pre-cooling means before defrost starts, refrigerator compartment temperature is dragged down by above-mentioned each embodiment,
Effectively reduce the thermal self-restraint stress temperature problem during defrost；Refrigerator air door is opened after defrost in advance, using refrigeration point
The mode of stream hot-air reduces the quantity of hot air that defrost enters freezing chamber, reduces the rise amount of freezer temperature after defrost；
Temperature recovery reduces after defrost, and the defrost convalescence after defrost shortens, and energy consumption of refrigerator reduces.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of defrosting control method, comprising:
Obtain the operation ratio of refrigeration equipment；
When the operation ratio is default operation ratio, works in the refrigeration equipment to break point, control the refrigeration equipment
Continue to run refrigeration；
When refrigeration equipment operation refrigeration to default halt condition, controls the refrigeration equipment and stop working；Wherein, it presets
Halt condition refers to that the temperature of compartment is reduced to the temperature value of conventional break point or less；
When the refrigeration equipment stops working, the work of defrost equipment is controlled after being spaced the first preset time with beginning
Frost；
After defrost, refrigeration air door is opened；
After the refrigeration door opening, the refrigeration equipment booting is controlled after being spaced the second preset time to carry out conventional system
Cold work.
2. defrosting control method according to claim 1, which is characterized in that the operation ratio for obtaining refrigeration equipment, packet
It includes: obtaining the operation ratio of refrigeration equipment in cooling cycle.
3. defrosting control method according to claim 1, which is characterized in that the default operation ratio be less than 85%~
95%, the default halt condition is that target cryogenic temperature is lower than 2 DEG C~4 DEG C of break point or refrigeration equipment continues to run refrigeration
Time be more than 50 minutes~70 minutes.
4. defrosting control method according to claim 3, which is characterized in that the default operation ratio is the institute less than 90%
State default halt condition to be target cryogenic temperature continue to run the time of refrigeration lower than 3 DEG C of break point or refrigeration equipment is more than 60
Minute.
5. defrosting control method according to claim 1, which is characterized in that the default operation ratio be greater than 85%~
95%, the default halt condition is that target cryogenic temperature is lower than 2 DEG C~4 DEG C of break point or refrigeration equipment continues to run refrigeration
Time be more than 20 minutes~40 minutes.
6. defrosting control method according to claim 1, which is characterized in that the default operation ratio is the institute greater than 90%
State default halt condition to be target cryogenic temperature continue to run the time of refrigeration lower than 3 DEG C of break point or refrigeration equipment is more than 30
Minute.
7. defrosting control method according to claim 1, which is characterized in that first preset time be 1.5 minutes~
3.5 minute.
8. defrosting control method according to claim 1, which is characterized in that first preset time is 2 minutes.
9. defrosting control method according to claim 1, which is characterized in that it is described after the refrigeration door opening,
The refrigeration equipment booting is controlled after being spaced the second preset time to carry out conventional refrigerant work, comprising:
After the refrigeration door opening, after being spaced 1.5 minutes~4.5 minutes, the compressor work of the refrigeration equipment is controlled
Make with to being pre-chilled；
After pre-cooling 0.5 minute~3.5 minutes, the blower for controlling the refrigeration equipment works with refrigerator room and freezing compartment's system
It is cold.
10. a kind of wind cooling refrigerator, which is characterized in that the wind cooling refrigerator uses defrost as claimed in any one of claims 1-9 wherein
Control method is realized.
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| CN108020000B (en) * | 2017-09-13 | 2020-03-31 | 青岛海尔股份有限公司 | Defrosting control method of refrigerator and refrigerator |
| CN107677033B (en) * | 2017-09-13 | 2020-04-21 | 青岛海尔股份有限公司 | Defrosting control method of refrigerator and refrigerator |
| CN107763943B (en) * | 2017-09-13 | 2020-02-07 | 青岛海尔股份有限公司 | Defrosting control method of refrigerator and refrigerator |
| CN108895752B (en) * | 2018-05-23 | 2021-04-23 | 海尔智家股份有限公司 | Method and device for preventing fan from being frozen during defrosting |
| CN111879056B (en) * | 2020-06-11 | 2021-09-07 | 珠海格力电器股份有限公司 | Refrigerator defrosting control method and device, storage medium and refrigerator |
| CN113970215B (en) * | 2020-07-22 | 2023-03-28 | 海信冰箱有限公司 | Refrigerator defrosting method and refrigerator |
| CN113970214B (en) * | 2020-07-22 | 2023-05-09 | 海信冰箱有限公司 | Refrigerator defrosting method and refrigerator |
| CN113970213B (en) * | 2020-07-22 | 2023-07-04 | 海信冰箱有限公司 | Refrigerator defrosting method and refrigerator |
| CN112378158B (en) * | 2020-11-06 | 2022-06-14 | 卡奥斯工业智能研究院(青岛)有限公司 | Refrigerator control method and device, electronic equipment and storage medium |
| CN112944798B (en) * | 2021-03-09 | 2022-03-25 | 珠海格力电器股份有限公司 | Refrigerator control method, refrigerator and storage medium |
| CN113587520B (en) * | 2021-08-17 | 2022-09-27 | 四川虹美智能科技有限公司 | Refrigerator defrosting system abnormity detection method and device |
| CN115773621A (en) * | 2021-09-08 | 2023-03-10 | 青岛海尔电冰箱有限公司 | Refrigerator control method, storage medium and refrigerator |
| CN115773618A (en) * | 2021-09-08 | 2023-03-10 | 青岛海尔电冰箱有限公司 | Refrigerator control method, storage medium and refrigerator |
| CN113865218B (en) * | 2021-11-02 | 2022-06-10 | 珠海格力电器股份有限公司 | Method for adjusting precooling time before defrosting, refrigeration equipment and storage medium |
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