CN109883127A - A kind of intelligent defrosting control method - Google Patents
A kind of intelligent defrosting control method Download PDFInfo
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- CN109883127A CN109883127A CN201910165795.4A CN201910165795A CN109883127A CN 109883127 A CN109883127 A CN 109883127A CN 201910165795 A CN201910165795 A CN 201910165795A CN 109883127 A CN109883127 A CN 109883127A
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Abstract
The invention discloses a kind of intelligent defrosting control methods, temperature, air pressure and chronometric data needed for intelligent defrosting controls when being run using temperature sensor, barometer and timer measurement unit, when unit use pattern is heating mode, carry out intelligent defrosting control, including defrost interval calculation logic, add up frost accumulated runing time calculating logic, into defrost logic, exit defrost logic, two-shipper defrost logic and manual defrost logic.The advantage of the invention is that, according to monitoring data such as unit temperature, pressure, runing times, to defrost interval, accumulative frost accumulated runing time exits defrost into defrost, two-shipper defrost and manual defrost devise intelligent control logic, it can effectively accomplish there is white defrost, frostless normal heating improves the operational efficiency of unit.
Description
Technical field
The present invention relates to field of intelligent control technology, are especially applied to air-conditioning, air-source heat pump hot water, air-source heat
Pump a kind of intelligent defrosting control method of the equipment such as heating machine.
Background technique
Currently, in the equipment such as common air-conditioning, air-source heat pump hot water, air source heat pump heating machine, when winter heats,
Refrigerant is lower than the temperature of outdoor air in the temperature of evaporator, when temperature of the refrigerant in evaporator is below the freezing point temperature
When, when outdoor air flows through evaporator and exchanged heat, the water vapour in air can form frost, and be attached to the fin of evaporator
On, here it is the frosts of machine.Evaporimeter frosting can cause the thermal coefficient of refrigerant and air to decline, and will cause wing
The blocking of piece vent passages leads to the decline of fan delivery, and the consequence eventually caused is exactly the decline of equipment heating performance, when serious
Being likely to result in equipment can not work normally.Therefore, defrost processing is the necessary means for guaranteeing equipment and working normally at low temperature.
Currently, common defrost mode is timing defrost, and by the temperature on detection fin, when the temperature of fin is low,
Can timing carry out defrost, to guarantee that equipment can work normally, even if being tied on fin the disadvantage is that the humidity of air is very low
It is white seldom, the phenomenon that time for having arrived setting can also enter defrost, and here it is frostless defrosts, not only without generating heat when defrost
Amount, can also consume energy or even consumption of calorie, the heating performance of equipment is caused to decline, and Energy Efficiency Ratio reduces.Also, pass through pressure
Power and the accounting of defrost time control defrost interval, also have through comparison Current Temperatures and threshold temperature and execute timing, then
Specific instruction is made according to the frost accumulated time.But actual frost accumulated situation needs to consider ambient temperature and humidity, fin temperature, ring wing temperature
Difference, the factors such as air pressure, could improve the reliability of intelligent defrosting.
Equipment how is set to have white defrost, frostless normal heating guarantees that equipment is run under optimum performance always, is mesh
Preceding those skilled in the art's urgent problem to be solved.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above shortcomings of the prior art, provide a kind of energy defrosting control side
Method.
In order to solve the above technical problems, the technical solution used in the present invention is: a kind of intelligent defrosting control method, special
Sign is: temperature, air pressure needed for intelligent defrosting controls when being run using temperature sensor, barometer and timer metering unit
And chronometric data, control mainboard detect unit use pattern, when use pattern is heating mode, carry out intelligent defrosting control,
Including defrost interval calculation logic, accumulative frost accumulated runing time calculating logic exits defrost logic, two-shipper into defrost logic
Defrost logic and manual defrost logic.
In above-mentioned technical proposal, the defrost interval calculation logic is, when press runing time is more than that defrost for the first time waits
Between after A, carry out defrost for the first time；For the first time after defrost, defrost interval carries out logic selection, defrost interval meter according to environment temperature for the first time
It calculates logic and is equipped with the first defrost circumstance temperature T1 and the second defrost circumstance temperature T2, the first defrost circumstance temperature T1 greater than the second defrost circumstance temperature T2, shape
At three temperature ranges, environment temperature is lower than the second defrost circumstance temperature T2, selects time value for the defrost interval for the first time of B；Environment temperature
Degree is higher than the second defrost circumstance temperature T2 and is lower than the first defrost circumstance temperature T1, selects time value for the defrost interval for the first time of C；Environment temperature
Higher than the first defrost circumstance temperature T1, then select time value for the defrost interval for the first time of D；When subsequent defrost interval is according to last time defrost
Between carry out logic selection, defrost interval calculation logic be equipped with the first defrost time value E and the second defrost time value F, the first defrost
Time value E is less than the second defrost time value F, if defrost time last time is not more than the first defrost time value E, defrost interval increases
The G time；If defrost time last time, between the first defrost time value E and the second defrost time value F, defrost interval is constant；If
Defrost time last time is not less than the second defrost time value F, then defrost interval reverts to the value at defrost interval for the first time.
In above-mentioned technical proposal, the accumulative frost accumulated runing time calculating logic includes mode one and mode two；Mode one
For press started to detect fin temperature after the operation H time, and when fin temperature is not more than 0 DEG C, accumulative frost accumulated runing time starts to count
When, if the fin constant temperature I time is greater than 0 DEG C, adds up frost accumulated runing time and reset；Mode two is to add up frost accumulated operation
Time is press runing time.
It is described to be logically divided into that fin temperature enters defrost logic and low pressure enters defrost into defrost in above-mentioned technical proposal
Logic both of which；
When entering defrost logic using fin temperature, is needed into defrost while meeting the following conditions:
1. accumulative frost accumulated runing time is not less than defrost interval；
2. fin temperature is lower than permission defrost fin temperature T3；
3. environment temperature is no more than permission defrost circumstance temperature T4；
4. the ring wing temperature difference is the absolute value of the difference of environment temperature and fin temperature, the ring wing temperature difference is not less than defrost ring wing difference T5；
5. unit leaving water temperature is greater than the white leaving water temperature T6 that degenerates；
6. being just less than maximum defrost press quantity in defrost press quantity；
7. press runing time, which is greater than defrost, opens press time J；
When entering defrost logic using low pressure, into defrost, it is necessary to meet following condition:
1. accumulative frost accumulated runing time is not less than low pressure defrost interval K；
2. press runing time is greater than low pressure defrost detection delay L；
3. fin temperature is less than low pressure defrost wing temperature T7；
4. unit leaving water temperature is greater than the white leaving water temperature T6 that degenerates；
If some condition is invalid or does not select low pressure to enter defrost logic into defrost logic, low pressure alarming is carried out.
In above-mentioned technical proposal, the defrost logic that exits is to meet any one following condition, then exits defrost:
1. defrost runing time is not less than maximum defrost time P；
2. fin temperature not less than degenerate frost wing temperature T8 with degeneration frost deviation T9's and；
3. unit leaving water temperature is no more than degeneration frost leaving water temperature T6 and continues the M time.
In above-mentioned technical proposal, the two-shipper defrost logic is that one group of press of shared blower can single two-shipper
Frost, two-shipper defrost logic include that two-shipper enters defrost logic and two-shipper exits defrost logic；
Two-shipper enters defrost logic, and the first press receives defrosting signal, starts progress two-shipper and enters the selection of defrost logic:
1. the second press is in operating status；
2. the second press runing time is not less than press minimum runing time N or the first press is low pressure defrost；
3. the fin temperature at the second press is lower than the white wing temperature T8 that degenerates；
4. unit leaving water temperature, which is greater than, exits defrost leaving water temperature T6；
Meet all conditions above, then two-shipper enters defrost, and otherwise only the first press enters defrost；
Two-shipper exits defrost logic, when two press are all in defrost, starts to carry out two-shipper to exit the selection of defrost logic:
1. defrost runing time is not less than maximum defrost time P；
2. the second press is without high pressure conditions；
3. fin temperature is less than the sum of degenerate frost wing temperature T8 and the white deviation T9 that degenerates；
4. the fin temperature at the second press is not less than the white wing temperature T8 that degenerates；
5. the fin temperature at the first press is not less than the white wing temperature T8 that degenerates；
If meeting first condition, two-shipper exits defrost；If being unsatisfactory for first condition but meeting the second to five condition, two-shipper is exited
Defrost；If being unsatisfactory for first condition, and being unsatisfactory for second condition or third condition, then only the second press is shut down；Other feelings
Condition need to re-start two-shipper and exit the selection of defrost logic；
First press and second press are interchangeable.
In above-mentioned technical proposal, the manual defrost logic is that, when meeting following all conditions, manual defrost can be performed
Operation:
1. fin temperature is less than the white wing temperature T8 that degenerates；
2. unit leaving water temperature is greater than the white leaving water temperature T6 that degenerates；
3. being just less than maximum defrost press number in defrost press number.
In technical solution, it is preferable that defrost ring wing difference T8 takes the first setting value T10 when environment temperature is not less than 0 DEG C；
When environment temperature is less than 0 DEG C, the second setting value T11 is taken.
The beneficial effects of the present invention are: the present invention provides a kind of intelligent defrosting control method, according to unit temperature, operation
The monitoring data such as time, to defrost interval, accumulative frost accumulated runing time exits defrost, two-shipper defrost and manualization into defrost
Frost devises intelligent control logic, can effectively accomplish there is white defrost, and frostless normal heating improves the operational efficiency of unit.
Detailed description of the invention
Fig. 1 is selection logical schematic in the interval of defrost for the first time of the invention.
Fig. 2 is the schematic diagram of accumulative frost accumulated runing time calculating logic mode one of the invention.
Fig. 3 is that the two-shipper of two-shipper defrost logic of the invention enters defrost logical schematic.
Fig. 4 is that the two-shipper of two-shipper defrost logic of the invention exits defrost logical schematic.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
A kind of intelligent defrosting control method, intelligence when being run using temperature sensor, barometer and timer metering unit
Temperature needed for defrosting control, air pressure and chronometric data, control mainboard detect unit use pattern, when use pattern is heating mould
When formula, intelligent defrosting control is carried out.Intelligent defrosting control includes defrost interval calculation logic, and accumulative frost accumulated runing time calculating is patrolled
Volume, into defrost logic, exit defrost logic, two-shipper defrost logic and manual defrost logic.
(1) defrost interval calculation logic
Control system sets the waiting time of defrost for the first time 7 minutes, when press runing time has been more than defrost waiting time for the first time,
System just will do it defrost for the first time.Defrost interval carries out logic selection according to environment temperature for the first time, as shown in Figure 1, defrost interval
Calculating logic is equipped with the first defrost circumstance temperature and the second defrost circumstance temperature, and the first defrost circumstance temperature is set as 5 DEG C, the setting of the second defrost circumstance temperature
It is -5 DEG C.If the environment temperature of actual measurement selects defrost interval B for defrost interval for the first time less than the second defrost circumstance temperature, if actual measurement
Environment temperature between the second defrost circumstance temperature and the first defrost circumstance temperature, then select defrost interval C for defrost interval for the first time, if real
The environment temperature of survey is greater than the first defrost circumstance temperature T1, then selects defrost interval D for defrost interval for the first time.Wherein, time interval B,
C, D is respectively set as 40 minutes, 35 minutes, 50 minutes.Subsequent defrost interval is selected according to the last defrost time,
Selection includes that defrost interval increases the time 10 minutes, and defrost distance maintaining is constant, and reverts to defrost spacing value for the first time.Defrost
Interval calculation logic is equipped with the first defrost time value and the second defrost time value, and the first defrost time value is less than the second defrost time
Value.It is set as 2.5 minutes with the first defrost time value E, the second defrost time value F is set as 12.5 minutes, is increased time value G and is set as 10
For minute, if defrost time last time is not more than 2.5 minutes, defrost interval increases by 10 minutes；If defrost time last time is big
In 2.5 minutes and less than 12.5 minutes, then defrost interval is constant；If defrost time last time is not less than 12.5 minutes, between defrost
Every the value for reverting to defrost interval for the first time.
(2) add up frost accumulated runing time calculating logic
Accumulative frost accumulated runing time calculating logic is divided into mode one and mode two, and calculating mode choosing can be carried out by control system
It selects.Wherein, mode is first is that using the frost accumulated time of unit fin as timing foundation.Press starts to detect after running 60 second time
Fin temperature.Accumulative frost accumulated runing time is subject to fin temperature and starts timing when fin temperature is not more than 0 DEG C, work as fin
When temperature is greater than 0 DEG C and continues 30 seconds, accumulative frost accumulated runing time will be reset.As shown in Fig. 2, after last time defrost,
Fin temperature is greater than 0 DEG C, and gradually, fin temperature decline and is lower than 0 DEG C, adds up frost accumulated runing time and starts timing, in the process,
It is more than 30 seconds that temperature, which is restored to 0 DEG C or more and time, adds up frost accumulated runing time and resets；When accumulative frost accumulated runing time reach into
Enter defrost numerical value and meet enter defrost condition also meets after, beginning defrost.Mode two using press runing time as timing according to
According to adding up defrost runing time is press runing time.
(3) enter defrost logic
Include two kinds of mode of entrance into defrost logic, is that fin temperature enters defrost logic and low pressure enters defrost and patrols respectively
Volume, the model selection into defrost logic can be carried out by control system.
When selection fin temperature enters defrost logic, it is necessary to meet following condition, can just carry out defrost:
1. accumulative frost accumulated runing time is not less than defrost interval；
2. fin temperature is lower than permission defrost fin temperature (being set as -1 DEG C)；
3. environment temperature is no more than permission defrost circumstance temperature (being set as 15 DEG C)；
4. the ring wing temperature difference is the absolute value of the difference of environment temperature and fin temperature, the ring wing temperature difference is poor not less than defrost ring wing；
5. unit leaving water temperature is greater than white leaving water temperature (being set as 4 DEG C) of degenerating；
6. being just less than maximum defrost press quantity in defrost press quantity；
It opens the press time 7. press runing time is greater than defrost and (is set as 5 minutes)；
Wherein, can different settings may be selected according to requirements, under the conditions of varying environment temperature in defrost ring wing difference.Such as, change
For white ring wing difference when environment temperature is not less than 0 DEG C, the first setting value is set as 0 DEG C, when environment temperature is less than 0 DEG C, the second setting
Value is set as 2 DEG C.If no Special use requirement, the first setting value and the second setting value are set as identical value, are such as set as 0
℃。
When selection low pressure enters defrost logic, it is necessary to meet following condition, can just carry out defrost:
1. accumulative frost accumulated runing time is not less than low pressure defrost interval (being set as 5 minutes)；
2. press runing time is greater than low pressure defrost detection delay (being set as 5 minutes)；
3. fin temperature is less than low pressure defrost wing temperature (being set as -8 DEG C)；
4. unit leaving water temperature is greater than white leaving water temperature of degenerating.
If some condition is invalid or does not select low pressure to enter defrost logic into defrost logic, low pressure report is carried out
It is alert.
(4) defrost logic is exited
It exits defrost and needs to meet any one following condition:
1. defrost runing time is not less than maximum defrost time (being set as 15 minutes)；
2. fin temperature is not less than degenerating white wing temperature (being set as 25 DEG C) and degeneration frost deviation T9(is set as 3 DEG C) and；
3. unit leaving water temperature is no more than the white leaving water temperature and for 10 seconds of degenerating.
(5) two-shipper defrost logic
Two-shipper defrost logic is one group of press for sharing blower, according to actual defrost demand, carries out single two-shipper defrost and change
The switching of single two-shipper defrost during frost and exit judgement.Two-shipper defrost logic includes that two-shipper enters defrost logic and two-shipper
Exit defrost logic.
As shown in figure 3, it is that the first press a receives defrosting signal that two-shipper, which enters defrost logic, start to carry out two-shipper entrance
The judgement of defrost logic selects:
If entering 2. selection instruction 1. judging that the second press b is in operating status, otherwise, the first press a defrost, the second pressure
Machine b is shut down；
2. the second press b runing time is not less than press minimum runing time (being set as 60 seconds), then enter 3. selection instruction；It is no
Then, judge whether the first press a is low pressure defrost, if so, otherwise, restarting 2. selection instruction into 3. selection instruction；
3. judge whether the fin temperature at the second press is lower than the white wing temperature of degeneration, if so, into 4. selection instruction, otherwise, the
One press a defrost, the second press b are shut down；
4. whether judging unit leaving water temperature, which is greater than, is exited defrost leaving water temperature, if so, two press enter defrost, otherwise first
Press a defrost, the second press b are shut down.
As shown in figure 4, two-shipper exits defrost logic is, when two press are in defrost, two-shipper is carried out and exits defrost to patrol
The judgement selection collected:
1. judge whether defrost runing time is not less than the maximum defrost time, if so, two press exit defrost simultaneously, if it is not,
Into 2. selection instruction；
2. judging the second press b, whether there is or not high pressure conditions, if so, the second press b is shut down, if nothing, into 3. selection instruction；
3. judging whether the fin temperature of the second press b is less than white wing of degenerating and mildly degenerates the sum of frost deviation, if so, the second press
B is shut down, otherwise, into 4. selection instruction；
4. judge whether the fin temperature of the second press b is not less than the white wing temperature of degeneration, if so, into 5. selection instruction, otherwise, into
Enter 1. selection instruction；
5. judge whether the fin temperature of the first press a is not less than the white wing temperature of degeneration, if so, two press exit defrost simultaneously,
Otherwise, into 1. selection instruction.
Two-shipper enters defrost logic and two-shipper exits the first press a being previously mentioned in defrost logic and the second press b can be mutual
Change the position of logic judgment.
(6) manual defrost logic
When the following conditions are met, manual defrosting operation can be performed:
1. fin temperature is less than white wing temperature of degenerating；
2. unit leaving water temperature is greater than white leaving water temperature of degenerating；
3. being just less than maximum defrost press number in defrost press number.
In the above control logic, related environment temperature, unit leaving water temperature, passes through temperature sensor at fin temperature
Measurement, air pressure are measured by barometric surveying, press runing time, defrost runing time by timer, and the data of measurement pass
It is defeated to arrive control system, to carry out the logic judgment of intelligent defrosting control；System involved in intelligent defrosting control method is set
Determine parameter, default can be carried out according to the actual requirement of the equipment using this control method.
The above embodiments are merely illustrative and not limiting of the invention, therefore all according to described in present patent application range
The equivalent change or modification done of method, be included in the scope of the patent application of the present invention.
Claims (8)
1. a kind of intelligent defrosting control method, it is characterised in that: transported using temperature sensor, barometer and timer metering unit
Temperature, air pressure and chronometric data needed for intelligent defrosting control, control mainboard detect unit use pattern, work as use pattern when row
When for heating mode, intelligent defrosting control, including defrost interval calculation logic are carried out, adds up frost accumulated runing time calculating logic,
Into defrost logic, defrost logic, two-shipper defrost logic and manual defrost logic are exited.
2. a kind of intelligent defrosting control method according to claim 1, it is characterised in that: the defrost interval calculation logic
For press runing time is more than progress defrost for the first time after the waiting time A of defrost for the first time；For the first time after defrost, defrost interval root for the first time
Logic selection is carried out according to environment temperature, defrost interval calculation logic is equipped with the first defrost circumstance temperature T1 and the second defrost circumstance temperature T2, the
One defrost circumstance temperature T1 is greater than the second defrost circumstance temperature T2, forms three temperature ranges, and environment temperature is lower than the second defrost circumstance temperature T2, choosing
Select the defrost interval for the first time that time value is B；Environment temperature is higher than the second defrost circumstance temperature T2 and is lower than the first defrost circumstance temperature T1, selection
Time value is the defrost interval for the first time of C；Environment temperature is higher than the first defrost circumstance temperature T1, then selects time value for the defrost for the first time of D
Interval；Subsequent defrost interval carried out logic selection according to defrost time last time, and defrost interval calculation logic is equipped with the first defrost
Time value E and the second defrost time value F, the first defrost time value E are less than the second defrost time value F, if defrost time last time is not
Greater than the first defrost time value E, then defrost interval increases the G time；If defrost time last time is in the first defrost time value E and second
Between defrost time value F, then defrost interval is constant；If defrost time last time is not less than the second defrost time value F, defrost interval
Revert to the value at defrost interval for the first time.
3. a kind of intelligent defrosting control method according to claim 1, it is characterised in that: the accumulative frost accumulated runing time
Calculating logic includes mode one and mode two；Mode one is that press started to detect fin temperature, fin temperature after the operation H time
When no more than 0 DEG C, accumulative frost accumulated runing time starts timing, if the fin constant temperature I time is greater than 0 DEG C, adds up frost accumulated
Runing time is reset；Mode two is to add up frost accumulated runing time as press runing time.
4. a kind of intelligent defrosting control method according to claim 1, it is characterised in that: described to be logically divided into defrost
Fin temperature enters defrost logic and low pressure enters defrost logic both of which；
When entering defrost logic using fin temperature, is needed into defrost while meeting the following conditions:
1. accumulative frost accumulated runing time is not less than defrost interval；
2. fin temperature is lower than permission defrost fin temperature T3；
3. environment temperature is no more than permission defrost circumstance temperature T4；
4. the ring wing temperature difference is the absolute value of the difference of environment temperature and fin temperature, the ring wing temperature difference is not less than defrost ring wing difference T5；
5. unit leaving water temperature is greater than the white leaving water temperature T6 that degenerates；
6. being just less than maximum defrost press quantity in defrost press quantity；
7. press runing time, which is greater than defrost, opens press time J；
When entering defrost logic using low pressure, into defrost, it is necessary to meet following condition:
1. accumulative frost accumulated runing time is not less than low pressure defrost interval K；
2. press runing time is greater than low pressure defrost detection delay L；
3. fin temperature is less than low pressure defrost wing temperature T7；
4. unit leaving water temperature is greater than the white leaving water temperature T6 that degenerates；
If some condition is invalid or does not select low pressure to enter defrost logic into defrost logic, low pressure alarming is carried out.
5. a kind of intelligent defrosting control method according to claim 1, it is characterised in that: the defrost logic that exits is,
Meet any one following condition, then exit defrost:
1. defrost runing time is not less than maximum defrost time P；
2. fin temperature not less than degenerate frost wing temperature T8 with degeneration frost deviation T9's and；
3. unit leaving water temperature is no more than degeneration frost leaving water temperature T6 and continues the M time.
6. a kind of intelligent defrosting control method according to claim 1, it is characterised in that: the two-shipper defrost logic is,
Share blower one group of press can single two-shipper carry out defrost, two-shipper defrost logic includes that two-shipper enters defrost logic and two-shipper moves back
Defrost logic out；The two-shipper enters defrost logic, and the first press receives defrosting signal, starts progress two-shipper and enters defrost
Logic selection:
1. the second press is in operating status；
2. the second press runing time is not less than press minimum runing time N or the first press is low pressure defrost；
3. the fin temperature at the second press is lower than the white wing temperature T8 that degenerates；
4. unit leaving water temperature, which is greater than, exits defrost leaving water temperature T6；
Meet all conditions above, then two-shipper enters defrost, and otherwise only the first press enters defrost；
The two-shipper exits defrost logic, when two press are all in defrost, starts to carry out two-shipper to exit the selection of defrost logic:
1. defrost runing time is not less than maximum defrost time P；
2. the second press is without high pressure conditions；
3. fin temperature is less than the sum of degenerate frost wing temperature T8 and the white deviation T9 that degenerates；
4. the fin temperature at the second press is not less than the white wing temperature T8 that degenerates；
5. the fin temperature at the first press is not less than the white wing temperature T8 that degenerates；
If meeting first condition, two-shipper exits defrost；If being unsatisfactory for first condition but meeting the second to five condition, two-shipper is exited
Defrost；If being unsatisfactory for first condition, and being unsatisfactory for second condition or third condition, then only the second press is shut down；Other feelings
Condition need to re-start two-shipper and exit the selection of defrost logic；
First press and second press are interchangeable.
7. a kind of intelligent defrosting control method according to claim 1, it is characterised in that: the manual defrost logic is,
When the following conditions are met, manual defrosting operation can be performed:
1. fin temperature is less than the white wing temperature T8 that degenerates；
2. unit leaving water temperature is greater than the white leaving water temperature T6 that degenerates；
3. being just less than maximum defrost press number in defrost press number.
8. a kind of intelligent defrosting control method according to claim 4, it is characterised in that: the defrost ring wing difference T5 is in ring
When border temperature is not less than 0 DEG C, the first setting value T10 is taken；When environment temperature is less than 0 DEG C, the second setting value T11 is taken.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425792A (en) * | 2019-08-05 | 2019-11-08 | 合肥华凌股份有限公司 | A kind of defrosting control method of refrigerator, storage medium and refrigerator |
| CN111397261A (en) * | 2020-04-13 | 2020-07-10 | 广东日出东方空气能有限公司 | Intelligent defrosting method of air source heat pump water heater |
| CN111964338A (en) * | 2020-08-03 | 2020-11-20 | 星崎电机（苏州）有限公司 | Electric heating linkage control system in refrigerator |
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| CN110425792B (en) * | 2019-08-05 | 2021-09-24 | 合肥华凌股份有限公司 | Defrosting control method of refrigerator, storage medium and refrigerator |
| CN111397261A (en) * | 2020-04-13 | 2020-07-10 | 广东日出东方空气能有限公司 | Intelligent defrosting method of air source heat pump water heater |
| CN111964338A (en) * | 2020-08-03 | 2020-11-20 | 星崎电机（苏州）有限公司 | Electric heating linkage control system in refrigerator |
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Application publication date: 20190614 |