CN108592296A - Air conditioner defrosting control method - Google Patents
Air conditioner defrosting control method Download PDFInfo
- Publication number
- CN108592296A CN108592296A CN201810559253.0A CN201810559253A CN108592296A CN 108592296 A CN108592296 A CN 108592296A CN 201810559253 A CN201810559253 A CN 201810559253A CN 108592296 A CN108592296 A CN 108592296A
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- air conditioner
- defrosting
- accumulative
- time
- heating capacity
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- 238000010257 thawing Methods 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 79
- 238000004378 air conditioning Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to air conditioner technical fields, and in particular to a kind of air conditioner defrosting control method.Room temperature fluctuation is excessive when defrosting in order to prevent, and defrosting control method of the invention includes the following steps：Since air conditioner booting after for the first time into defrosting mode, in real time calculate air conditioner accumulative heating capacity QIt is accumulative；Compare the accumulative heating capacity QIt is accumulativeWith preset heating capacity Q, judged whether that air conditioner is made to be again introduced into defrosting mode according to comparison result；Wherein, the time for entering defrosting mode after air conditioner booting for the first time determines as follows：Air conditioner identical with the air conditioner model is obtained under identical environment, identical operating condition, enters the time T of defrosting mode after booting for the first time every time；The time for entering defrosting mode after the booting of current air conditioner for the first time is determined according to the time T.The present invention can more accurately judge that air conditioner enters the opportunity of defrosting mode, and the influence during reduction defrosting to the full extent to indoor temperature.
Description
Technical field
The invention belongs to air conditioner technical fields, and in particular to a kind of air conditioner defrosting control method.
Background technology
Air conditioner as a kind of equipment that can adjust indoor environment temperature, its working principle is that：It is being followed by refrigerant
Between endless tube road by the state of high voltage/low voltage/gaseous state/liquid convert make indoor environment temperature reduce or increase, i.e., from
From the perspective of indoor unit, air conditioner is in refrigeration or heating condition.When air conditioner heat-production is run, in certain humidity item
If outdoor coil temperature is too low to lead to frosting situation under part, and outdoor coil pipe used frosting can cause the heat exchange of outdoor heat exchanger to be imitated
Rate reduces, and influences the heating effect of air conditioner, reduces the comfort of indoor environment, influence user experience.Therefore, at air conditioner
In the case of heating condition, the outdoor coil pipe used progress to air conditioner is needed effectively to defrost in time.
Existing domestic air conditioner is in running heating operations, if outside humidity is larger, reaches the condition of frosting, outdoor
Chance frosting, and what frosting directly affected is exactly heating capacity, and heating capacity directly affects the impression of user.Existing air conditioner one
As be to go to judge whether using run time+outdoor coil temperature to enter defrosting, but this mode can not be embodied directly
The practical heating capacity of air-conditioning really influences the heating capacity that user uses air conditioner.
Based on this, spy proposes the present invention.
Invention content
In order to solve the above problem in the prior art, room temperature fluctuation is excessive when defrosting in order to prevent, and the present invention carries
A kind of air conditioner defrosting control method is gone out, the defrosting control method includes the following steps：After air conditioner booting for the first time
Start into defrosting mode, calculates the accumulative heating capacity Q of air conditioner in real timeIt is accumulative；Compare the accumulative heating capacity QIt is accumulativeBe equipped in advance
Heat Q judges whether that air conditioner is made to be again introduced into defrosting mode according to comparison result；Wherein, air conditioner booting after for the first time into
The time for entering defrosting mode determines as follows：Obtain identical with air conditioner model air conditioner identical environment,
Under identical operating condition, enter the time T of defrosting mode after booting for the first time every time；Current air-conditioning is determined according to the time T
Enter the time of defrosting mode after device booting for the first time.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " the accumulative heating capacity QIt is accumulativeWith it is default
Heating capacity Q, according to comparison result judge whether enter defrosting mode " the step of include：If 0.9Q≤QIt is accumulative＜ Q then reduce pressure
Contracting machine running frequency continues heating operation.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, if 0.9Q≤QIt is accumulative＜ Q, then by compressor
Running frequency reduces by 20%.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " the accumulative heating capacity QIt is accumulativeWith it is default
Heating capacity Q, according to comparison result judge whether enter defrosting mode " the step of include：If QIt is accumulative>=Q then makes air conditioner again
Into defrosting mode.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, the preset heating capacity Q is in the following manner
It determines：It is set into the Rule of judgment of defrosting；When meeting the Rule of judgment, air conditioner is made to enter defrosting mode；It calculates empty
Adjust device in the adjacent accumulative heating capacity Q entered twice between defrosting moden；Calculate multiple accumulative heating capacity QnAverage value Q, will
The Q is as preset heating capacity.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, the step of " Rule of judgment for being set into defrosting "
Suddenly include：The condition for making air conditioner enter defrosting mode is set according to the temperature of outdoor unit coil pipe.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " set according to the temperature of outdoor unit coil pipe
So that air conditioner is entered the condition of defrosting mode " the step of include：Made to set according to the rate of decay of the temperature of outdoor unit coil pipe
Air conditioner enters the condition of defrosting mode.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " set according to the temperature of outdoor unit coil pipe
So that air conditioner is entered the condition of defrosting mode " the step of include：According to the difference between the temperature and preset temperature of outdoor unit coil pipe
Value sets the condition for making air conditioner enter defrosting mode.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " multiple accumulative heating capacity Q are being calculatednIt is flat
In the step of mean value Q ", " multiple accumulative heating capacity Qn" include at least Q1、Q2、Q3。
In the preferred embodiment of above-mentioned air conditioner defrosting control method, the defrosting control method further includes：When full
When foot enters the condition of defrosting mode, defrosted by four-way valve commutation；Wherein, the time of each run defrosting mode is pre-
The set time first set.
The accumulative heating capacity Q that the present invention passes through calculating air conditionerIt is accumulative, and be compared with preset heating capacity Q, to judge
The accumulative heating capacity Q of air conditionerIt is accumulativeWhether the degree that needs again defrost is reached.It can be with as benchmark using preset heating capacity Q
More accurately judge that air conditioner enters the opportunity of defrosting mode, avoids the phenomenon that frequently defrosts.And according to the accumulative of air conditioner
Heating capacity can reduce influence to indoor temperature during defrosting to the full extent, and it is not in larger to make indoor temperature
Fluctuation.
Description of the drawings
Fig. 1 is the broad flow diagram of the air conditioner defrosting control method of the present invention.
Specific implementation mode
To keep the embodiment of the present invention, technical solution and advantage more obvious, below in conjunction with attached drawing to the skill of the present invention
Art scheme is clearly and completely described, it is clear that and the embodiment described is a part of the embodiment of the present invention, rather than all
Embodiment.It will be apparent to a skilled person that these embodiments are used only for explaining the technical principle of the present invention, and
It is not intended to be limiting protection scope of the present invention.
As shown in Figure 1, the air conditioner defrosting control method of the present invention includes the following steps：S110, from air conditioner booting after
Start for the first time into defrosting mode, calculates the accumulative heating capacity Q of air conditioner in real timeIt is accumulative；S120, comparison add up heating capacity QIt is accumulativeWith
Preset heating capacity Q judges whether that air conditioner is made to be again introduced into defrosting mode according to comparison result.Those skilled in the art can manage
Solution, air conditioner from enter defrosting to enter back into next time defrosting be a cycle of operation, the period include Defrost operation and
Heating operation, if air conditioner defrosts on appropriate opportunity every time, the accumulative heating in a cycle of operation of air conditioner
Amount may be considered it is fixed, i.e., air conditioner a cycle of operation accumulative heating capacity be preset heating capacity Q.Therefore, from sky
Start for the first time into defrosting mode after adjusting device booting, by the accumulative heating capacity Q for calculating air conditionerIt is accumulative, compare QIt is accumulativeWith the value of Q
Can accurately judge whether that air conditioner is made to be again introduced into defrosting mode.
In above-mentioned steps S110, the time for entering defrosting mode after air conditioner booting for the first time is true as follows
It is fixed：Air conditioner identical with air conditioner model is obtained under identical environment, identical operating condition, is entered for the first time after booting every time
The time T of defrosting mode；The time for entering defrosting mode after the booting of current air conditioner for the first time is determined according to time T.Namely
It says, using big data principle, by background acquisition air conditioner identical with current air conditioner model in identical environment, identical operation
The time for entering defrosting mode after being switched on every time under operating mode for the first time, then collected mass data be calculated working as
Preceding air conditioner enters the time of defrosting mode for the first time after this booting.After determining air conditioner booting using big data
Enter the time of defrosting mode for the first time, those skilled in the art can take any appropriate calculation, no longer right herein
Specific calculation is described in detail.
As an example, can be determined in the following manner about preset heating capacity Q：It is set into the judgement item of defrosting first
Part such as sets the condition for making air conditioner enter defrosting mode according to the temperature of outdoor unit coil pipe.When meeting Rule of judgment, make
Air conditioner enters defrosting mode, then calculates the accumulative heating capacity Q of air conditionern, when meeting Rule of judgment again, will currently count
The accumulative heating capacity Q calculatednSave as Q1；Then since air conditioner enters defrosting mode, the accumulative heating of air conditioner is recalculated
Measure Qn, when meeting Rule of judgment again, the accumulative heating capacity Q that will currently calculatenSave as Q2；And so on can calculate
Air conditioner is in the adjacent accumulative heating capacity Q entered twice between defrosting mode1、Q2、Q3…Qn；Then it calculates and adds up heating capacity Q1、
Q2、Q3…QnAverage value Q, average value Q is preset heating capacity.
It will be appreciated to those of skill in the art that the accumulative heating capacity of air conditioner can be calculated by way of integral,
No longer detailed calculation is illustrated herein.Obtain multigroup air conditioner in each cycle of operation (air conditioner by experiment
From enter defrosting to enter back into next time defrosting be a cycle of operation) accumulative heating capacity, the data tested are more at most
Preset heating capacity Q is more accurate.In addition, the Rule of judgment about the defrosting set during the test can be selected neatly arbitrarily
Rational Rule of judgment, such as air conditioner can also be made to enter defrosting to set according to the rate of decay of the temperature of outdoor unit coil pipe
The condition of pattern；Or air conditioner is set to enter defrosting to set according to the difference between the temperature of outdoor unit coil pipe and preset temperature
The condition of pattern, these are without departure from protection scope of the present invention.
In the step s 120, as 0.9Q≤QIt is accumulativeWhen ＜ Q, compressor operating frequency can be reduced at this time, continue heating fortune
Row, such as compressor operating frequency is reduced by 20%, the time into defrosting can be delayed.Work as QIt is accumulative>=Q, illustrates air conditioner
Accumulative heating capacity has reached preset heating capacity Q, you can to defrost, so that air conditioner is again introduced into defrosting mode at this time.
As an example, the air conditioner defrosting control method of the present invention, which uses, shuts down Defrost mode, i.e., when satisfaction enters defrosting
When the condition of pattern, defrosted by four-way valve commutation.The time defrosted every time is set as the set time.Due in the defrosting
Under pattern, air conditioner can again start to calculate the accumulative of air conditioner after first time defrosting mode without heating
Heating capacity QIt is accumulative.It will be readily appreciated by those skilled in the art that in this mode, since the accumulative heating capacity under defrosting mode is
0, therefore even if the accumulative heating capacity Q of air conditioner is just calculated since entering defrosting modeIt is accumulative, judging result will not be influenced.
As an example, if the air conditioner defrosting control method of the present invention using not shutting down Defrost mode, i.e., ought meet into
When entering the condition of defrosting mode, opens bypass line and defrost, is i.e. air conditioner utilizes side while being heated to interior
It defrosts to outdoor unit on siphunculus road.At this time due in the air conditioner still heating capacity of some in defrost mode,
The accumulative heating capacity Q of air conditioner can be calculated when first time defrosting mode startsIt is accumulative.It will be appreciated by those skilled in the art that
It is, if not considering the heating capacity that air conditioner generates under defrosting mode when determining preset heating capacity Q, to be removed using not shut down
When white mode, the accumulative heating capacity Q for calculating air conditioner can also be started again after defrosting modeIt is accumulative。
In conclusion accumulative heating capacity Q of the present invention by calculating air conditionerIt is accumulative, and be compared with preset heating capacity Q,
To judge the accumulative heating capacity Q of air conditionerIt is accumulativeWhether the degree that needs again defrost is reached.Using preset heating capacity Q as
Benchmark can more accurately judge that air conditioner enters the opportunity of defrosting mode, avoid the phenomenon that frequently defrosts.And according to air-conditioning
The accumulative heating capacity of device can reduce influence to indoor temperature during defrosting to the full extent, and indoor temperature is made not go out
Existing larger fluctuation.
So far, it has been combined preferred embodiment shown in the drawings and describes technical scheme of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific implementation modes.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make the relevant technologies feature equivalent change or replacement, these
Technical solution after change or replacement is fallen within protection scope of the present invention.
Claims (10)
1. a kind of air conditioner defrosting control method, which is characterized in that the defrosting control method includes the following steps：
Since air conditioner booting after for the first time into defrosting mode, in real time calculate air conditioner accumulative heating capacity QIt is accumulative；
Compare the accumulative heating capacity QIt is accumulativeWith preset heating capacity Q, judge whether that so that air conditioner is again introduced into removes according to comparison result
White pattern；
Wherein, the time for entering defrosting mode after air conditioner booting for the first time determines as follows：
Air conditioner identical with the air conditioner model is obtained under identical environment, identical operating condition, every time first after booting
The secondary time T into defrosting mode；
The time for entering defrosting mode after the booting of current air conditioner for the first time is determined according to the time T.
2. air conditioner defrosting control method according to claim 1, which is characterized in that " the accumulative heating capacity QIt is accumulative
With preset heating capacity Q, according to comparison result judge whether enter defrosting mode " the step of include：
If 0.9Q≤QIt is accumulative＜ Q then reduce compressor operating frequency, continue heating operation.
3. according to the air conditioner defrosting control method described in claim 2, which is characterized in that if 0.9Q≤QIt is accumulative＜ Q, then will pressure
Contracting machine running frequency reduces by 20%.
4. air conditioner defrosting control method according to claim 1, which is characterized in that " the accumulative heating capacity QIt is accumulative
With preset heating capacity Q, according to comparison result judge whether enter defrosting mode " the step of include：
If QIt is accumulative>=Q, then make air conditioner be again introduced into defrosting mode.
5. air conditioner defrosting control method according to claim 1, which is characterized in that the preset heating capacity Q by with
Under type determines：
It is set into the Rule of judgment of defrosting；
When meeting the Rule of judgment, air conditioner is made to enter defrosting mode；
Air conditioner is calculated in the adjacent accumulative heating capacity Q entered twice between defrosting moden；
Calculate multiple accumulative heating capacity QnAverage value Q, using the Q as preset heating capacity.
6. air conditioner defrosting control method according to claim 5, which is characterized in that " be set into the judgement item of defrosting
The step of part " includes：
The condition for making air conditioner enter defrosting mode is set according to the temperature of outdoor unit coil pipe.
7. air conditioner defrosting control method according to claim 6, which is characterized in that " according to the temperature of outdoor unit coil pipe
To set the condition for making air conditioner enter defrosting mode " the step of include：
The condition for making air conditioner enter defrosting mode is set according to the rate of decay of the temperature of outdoor unit coil pipe.
8. air conditioner defrosting control method according to claim 6, which is characterized in that " according to the temperature of outdoor unit coil pipe
To set the condition for making air conditioner enter defrosting mode " the step of include：
The condition for making air conditioner enter defrosting mode is set according to the difference between the temperature of outdoor unit coil pipe and preset temperature.
9. air conditioner defrosting control method according to claim 5, which is characterized in that " calculating multiple accumulative heating capacity Qn
Average value Q " the step of in, " multiple accumulative heating capacity Qn" include at least Q1、Q2、Q3。
10. air conditioner defrosting control method according to any one of claim 1 to 9, which is characterized in that the defrosting control
Method processed further includes：
When meeting into the condition of defrosting mode, defrosted by four-way valve commutation；
Wherein, the time of each run defrosting mode is the preset set time.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810559253.0A CN108592296B (en) | 2018-06-01 | 2018-06-01 | Defrosting control method for air conditioner |
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|---|---|---|---|
| CN201810559253.0A CN108592296B (en) | 2018-06-01 | 2018-06-01 | Defrosting control method for air conditioner |
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| CN108592296B CN108592296B (en) | 2021-03-16 |
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