CN108758972A - Air conditioner heat-production defrosting control method, air conditioner and storage medium - Google Patents
Air conditioner heat-production defrosting control method, air conditioner and storage medium Download PDFInfo
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- CN108758972A CN108758972A CN201810473716.1A CN201810473716A CN108758972A CN 108758972 A CN108758972 A CN 108758972A CN 201810473716 A CN201810473716 A CN 201810473716A CN 108758972 A CN108758972 A CN 108758972A
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- air conditioner
- frequency
- compressor
- heating
- defrost
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Classifications
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- 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
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- 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
- F24F11/70—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
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of air conditioner heat-production defrosting control methods, air conditioner and storage medium, the air conditioner heat-production defrosting control method by after allowing compressor defrost to exit the off-mode of action to quick raising frequency to during heating startup running frequency, a low speed raising frequency is inserted into the first frequency of low frequency and maintains the operational process of the second preset time of operation, having mitigated compressor, quickly startup brings refrigerant pressure in pipeline to change too fast problem, it is avoided with this and causes between expansion valve inlet and outlet that pressure difference is excessive causes the refrigerant temperature after expansion valve outlet too low, bring the compressor lubricant oil mixed with refrigerant solidification that pipeline blockage is caused to cause heating failure problems.
Description
Technical field
The present invention relates to field of air conditioner control more particularly to a kind of air conditioner heat-production defrosting control method, air conditioner and
Storage medium.
Background technology
Transducer air conditioning is much all throttled using the electric expansion valve of adjustable aperture at present, in air conditioner heat-production
During frost, when detecting that defrost exit criteria exits, compressor directly rises to the initial frequency value of heating from shutting down, together
When expansion valve by the maximum opening during defrost directly quickly decline adjust to heating initial opening, with progress next time
Normal heating, the risk brought in this way are that the maximum opening adjusting due to expansion valve when exiting defrost is initially opened to smaller
The rapid raising frequency of degree and compressor brings the temperature in pipeline near expansion valve is too low to cause compressor lubricant oil in the presence of solidifying
Admittedly causing pipeline blockage, to heating failure problems occur.
The above is only used to facilitate the understanding of the technical scheme, and is not represented and is recognized that the above is existing skill
Art.
Invention content
The main purpose of the present invention is to provide a kind of air conditioner heat-production defrosting control methods, it is therefore intended that solves existing sky
Since the quick raising frequency of compressor and being reduced rapidly for expansion valve opening bring pipeline blockage to cause to heat when device defrost being adjusted to exit
Failure problems.
To achieve the above object, a kind of air conditioner heat-production defrosting control method provided by the invention, the air conditioner heat-production
Defrosting control method includes：
Receive air conditioner exit defrost instruction when, control compressor it is out of service, control compressor it is out of service
In first preset time, control outdoor fan, which is opened and controls four-way valve, carries out heating commutation；
After first preset time, controls the compressor frequency and the first predeterminated frequency is risen to first rate,
And first predeterminated frequency is kept to run；
After the compressor keeps the first predeterminated frequency to run second preset time, the compressor frequency is controlled
Heating is risen to the second rate and starts running frequency, wherein the frequency in the compressor is started with the operation of the first predeterminated frequency
To during rising to heating initiation culture, control expansion valve drops to heating initial opening.
Preferably, second rate is more than the first rate.
Preferably, the first frequency is with the second frequency ratio range：1/3-2/3.
Preferably, the first frequency and the second frequency ratio are preferably 1/2.
Preferably, before the aperture for controlling the expansion valve declines, the expansion valve runs maximum opening.
Preferably, described described to rising to the first frequency the second preset time of operation in the compressor frequency
Heat initiation culture during, control the expansion valve drop to heating initial opening include：
It is run in the second preset time with the first predeterminated frequency in the compressor, controls the expansion valve and drop to heating
Initial opening.
Preferably, it is described detect that air conditioner exits defrost before further include：
When detection outdoor heat exchanger temperature value rises to preset temperature value, sends out air conditioner and exit defrost instruction.
Preferably, it is described detect that air conditioner exits defrost before further include：
Timing is carried out to defrost operating status, when the timing time is more than third preset time, air conditioner is sent out and moves back
Go out defrost instruction.
To achieve the above object, the present invention also provides a kind of air conditioner, the air conditioner includes indoor unit and outdoor unit,
Indoor fan and indoor heat exchanger be set in middle indoor unit, it is setting outdoor heat exchanger in outdoor unit, outdoor fan, four-way valve, swollen
Swollen valve and compressor also set up controller in machine and/or outdoor unit indoors, and the controller controls the indoor fan, room
Outer wind turbine, four-way valve, expansion valve and compressor operating so that the air conditioner runs heating mode, and are detecting entranceization
Enter defrost operation when ice-lolly part, and defrost operational process is exited detecting that the when of exiting defrost condition executes.The control
Device includes the air conditioner control journey that memory, processor and being stored in can be run on the memory and on the processor
Sequence, the air conditioner control program realize the air conditioner heat-production defrosting control method when being executed by the processor.
To achieve the above object, the present invention also provides a kind of computer readable storage medium, the computer-readable storages
Air conditioner control program is stored on medium, the air conditioner control program realizes the air conditioner system when being executed by processor
The step of thermal cream control method.
The air conditioner cooling activation control method of the embodiment of the present invention, by air conditioner run heating defrost during,
Detect that air conditioner exits defrost condition, and it is above-mentioned exit defrost condition and meet when, control compressor is in the first preset time
It is interior out of service and control outdoor fan open and four-way valve commutate, next control compressor with lower first rate
Raising frequency to low frequency first frequency, and run the second preset time, then control compressor arrived with higher second rate raising frequency
The running frequency started is heated, and the second preset time is run until raising frequency starts to heating with first frequency in above-mentioned compressor
During frequency, control expansion valve opening is reduced to heating initial opening with lower rate.Finally control compressor is according to normal
Heating carry out FREQUENCY CONTROL.The present embodiment by after allowing compressor defrost to exit the off-mode of action to quick raising frequency to making
During thermal starting running frequency, a low speed raising frequency is inserted into the first frequency of low frequency and maintains the fortune of the second preset time of operation
Row process, having mitigated compressor, quickly startup brings refrigerant pressure in pipeline to change too fast problem, is avoided with this and causes to expand
Pressure difference is excessive between valve inlet and outlet causes the refrigerant temperature after expansion valve outlet too low, brings the compressor mixed with refrigerant
Lubricating oil solidification causes pipeline blockage to cause heating failure problems.
Description of the drawings
Fig. 1 is the air-conditioner system pipeline schematic diagram of first embodiment of the invention；
Fig. 2 is the flow diagram of the air-conditioner control method of first embodiment of the invention；
Fig. 3 is the air conditioner defrost action timing diagram of first embodiment of the invention；
Fig. 4 is the air conditioner function module diagram of the present invention；
Fig. 5 is the controller of air conditioner unit functional module schematic diagram of the present invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
The present invention proposes that a kind of air conditioner heat-production defrosting control method, air conditioner heat-production defrosting control method are applied to air-conditioning
Device heating mode, the system pipeline of the air conditioner is as shown in Figure 1, the air conditioner includes outdoor heat exchanger 1, expansion valve 2, interior changes
Machine indoors is arranged in hot device 3, four-way valve 4, compressor 5, inner blower 6 and outer wind turbine 7, wherein indoor heat exchanger 3 and inner blower 6
In, outdoor heat exchanger 1, four-way valve 4, compressor 5 and outer wind turbine 7 are arranged in outdoor unit, and the refrigerant in pipeline is in heating mode
Lower as shown by the arrows in Figure 1, air conditioner is run by controlling compressor 5, and controls the commutation of four-way valve 4 and expansion valve 2 is opened
Degree so that the refrigerant in pipeline forms high temperature and pressure gaseous coolant after being compressed by compressor 5 discharges heat through indoor heat exchanger 3
Amount, through inner blower 7 to indoor submitting hot wind, becomes the low temperature refrigerant of gas-liquid mixture phase, and the throttling of expanded valve 2, refrigerant
Temperature and pressure, which further decreases, becomes low temperature liquid refrigerant, then absorbs heat through outdoor heat exchanger, through outdoor fan 6 to outdoor submitting
Cold wind, it is cryogenic gaseous refrigerant that refrigerant temperature, which increases, finally enters the compression of compressor 5 and realizes entire heating cyclic process with this.
The air conditioner can further include the temperature sensing for the detection outdoor environment temperature T4 being arranged in outdoor unit
Device 8, the temperature sensor 9 of 1 coil temperature T3 of detection outdoor heat exchanger, and be arranged in machine indoors and detect indoor environment temperature
The temperature sensor 10 of the 3 coil temperature T2 of temperature sensor 11 and detection indoor heat exchanger of T1, controller of air conditioner are based on inspection
Above-mentioned temperature value is surveyed, timely the frequency of the operation of 2 aperture of variable expansion valve, indoor fan 7 and outdoor fan 6 and compressor 5
Rate, to meet refrigeration or heating operation demand set by user.
In air conditioner carries out heating operations, controller of air conditioner by detecting 1 coil temperature T3 of outdoor heat exchanger in real time
Temperature value and the temperature value of outdoor environment temperature T4 and the run time of compressor, judge whether outdoor heat exchanger is tied
Frost carries out defrost process to control air conditioner, prevents the frosting of outdoor heat exchanger from influencing heat exchanger effectiveness, and then influences indoor system
Thermal effect.It optionally, can be by judging whether the accumulated running time of compressor reaches preset time value, by judging T3 and T4
Whether temperature meets certain temperature value to judge, is more than such as after sixty minutes, to judge T3 temperature when compressor accumulated running time
<- 20 DEG C, and T4>- 2 DEG C, then judge outdoor heat exchanger frosting, needs to carry out defrost processing.
When air conditioner carries out defrost processing, control four-way valve 4 commutates, while compressor operating defrost frequency, swollen
Swollen valve 2 is adjusted to maximum and is either closed close to the opening value of maximum opening, indoor fan and outdoor fan, when detecting air-conditioning
When device exits defrost condition, then defrost action is exited in the above-mentioned each load execution for controlling air conditioner, specifically exits defrost item
Part can be：Detection outdoor heat exchanger coil temperature T3 rises to the first preset temperature value such as 15 DEG C of (wherein first preset temperatures
More than or equal to 15 DEG C), or (wherein second is default more than such as 8 DEG C of the second preset temperature by detection outdoor heat exchanger coil temperature T3
Temperature is more than or equal to 8 DEG C) and when continuing 80 seconds or more preset times or defrost carries out state execution to continue to exceed third default
It when such as 15 minutes time, can determine whether to exit defrost condition for defrost state satisfaction, start to execute at this time and exit at defrost action
Reason, as shown in Fig. 2, the defrosting control method of air conditioner execution at this time includes：
Step S10, receive air conditioner exit defrost instruction when, control compressor 5 it is out of service, control compressor 5
In the first preset time out of service, control outdoor fan 7, which is opened and controls four-way valve 4, carries out heating commutation；
Step S20, after the first preset time, control 5 frequency of compressor rises to the first predeterminated frequency with first rate,
And keep the operation of the first predeterminated frequency；
Step S30, compressor 5 keep the first predeterminated frequency run the second preset time after, control compressor frequency 5 rates with
Second rate rises to heating and starts running frequency, wherein the frequency in compressor 5 is supreme with the operation beginning of the first predeterminated frequency
During being raised to heating initiation culture, control expansion valve 2 drops to heating initial opening.
Wherein expansion valve 2 is electric expansion valve, its opening size is adjusted by controller of air conditioner output order, above-mentioned
Defrost exit action each load execute action sequence as shown in figure 3, when detect exit defrost condition when, defrost action hold
The T1 times gone as after 15 minutes, control compressor 5 is first shut off to stop the compressor of refrigerant, while being controlled outer wind turbine 6 and being opened
It opens, and controls four-way valve 4 and commutate, when compressor is just closed, the pressure difference of four-way valve entrance and exit is big, if at this time
Control four-way valve 4 commutates, the big problem of noise when the big operation of torque when switching can be brought to switch, therefore can compress
It commutates again after a period of time that machine 5 is closed, such as the time of delay 10-15 seconds, due to four-way valve entrance and exit when switching at this time
Pressure difference mitigated smaller, therefore the torque switched at this time is smaller, the low noise of switching.
After compressor 5 closes the T2 times, frequency of the control compressor 5 within the T3 times is with first rate V1 rising values the
One frequency values, wherein first rate V1 here is less than the raising frequency rate in normal heating process, the liter such as normally heated
When frequency rate is generally 1Hz/ seconds, V1 can be 1/4V1-1/3V1 with value, such as be 0.3Hz/ seconds, and first frequency here
Value is less than the frequency values for the platform that compressor is run when normal heating starts, when heating such as in the prior art,
Compressor first can raising frequency to a low frequency platform frequency M values, this M value be generally compressor heating maximum frequency half such as
50Hz, this first frequency could be provided as 25Hz.
After the first frequency value T4 periods that compressor 5 runs low frequency, control compressor 5 is with the second rate V2 in T5
It is interior to rise to the heating startup running frequency M of compressor 5, one run first when M, that is, compressor here normally heats
The frequency values of platform, and the climbing speed of the second rate V2 is bigger than first rate V1.
The second preset time is run to during rising to heating initiation culture in the first frequency of compressor 5, is also controlled swollen
Swollen valve 2 drops to the initial opening value of heating from the maximum opening value when defrost acts, heating initial opening here be
Normal heating expands the opening value of valve regulation, about less than half of maximum opening when starting, as the maximum opening of expansion valve is
When 480 step, initial opening could be provided as 230 steps.
When action is exited in execution defrost after existing air conditioner defrost, in compressor 5 after the dwell time of T2, i.e.,
An initial platform frequency values M of compressor operating when being started with higher second rate V2 raising frequencies to heating, at this time in pipeline
Refrigerant flow rate it is high so that the refrigerant pressure in pipeline, which rises, relatively arrives relatively high value, at the same also control expansion valve 2 with faster
Speed drops to heating initial opening from the maximum opening in defrost action, since air conditioner chamber's inner blower 7 at this time is due to anti-cold
Wind is in out of service and cannot exchange heat to indoor heat exchanger 3, the outlet after bringing expansion valve 2 to throttle refrigerant in this way
That is the pressure difference of an end pressure opposite inlet of nearly outdoor heat exchanger 1 is too big in Fig. 1, due to the decline of pressure so that refrigerant from
It is down to low-down temperature at temperature behind the outlet out of expansion valve 2 and such as can reach -30 DEG C hereinafter, and due to cold in pipeline
The lubricating oil of matchmaker and compressor 5 is mixed flow, and too low temperature can approach the setting temperature point for being even more than lubricating oil,
If the setting temperature of RB74AF model lubricating oil is -35 DEG C, so that the flowing that lubricating oil easily solidification affects refrigerant causes
Oil is stifled, with this since refrigerant is unable to transfer of heat to causing the heating of air conditioner to be not normally functioning failure.
It is not quick immediately in compressor 5 after the dwell time of T2 in the above-mentioned rate-determining steps of the present embodiment
Raising frequency, but with a lower rate V1 raising frequency to a lower first frequency value and run the second preset time such as 50-
80 seconds, this frequency values was lower than initial platform frequency values M of the compressor when heating startup, and the generally 1/3-2/3 of M values is excellent
It is selected as 1/2, when such as M being 50Hz, first frequency value is 25Hz at this time, due to being with lower rate V1 raising frequencies at this time to lower
First frequency value, and the holding Jing Guo the second preset time, therefore the power of 5 compression refrigerant of compressor is low, output refrigerant
Flow velocity is relatively low, and the pressure in pipeline is relatively low, and refrigerant pressure rising is relatively gentle in pipeline, so that in expansion valve
Place's pressure of 2 entrance is also low, thus the pressure difference between the entrance and exit of expansion valve 2 reduces so that expansion valve 2 is to refrigerant
Shut off effect reduction, after shutting off out refrigerant temperature will not be too low, therefore will not cause lubricating oil solidify risk, make
Obtaining air conditioner can normally heat.
Moreover, in the control of expansion valve 2 that action is exited in defrost, expansion valve 2 by maximum in defrost action process or
The state of the very big aperture of person runs the second preset time until rising to heating initiation culture in above-mentioned compressor with first frequency
Period, aperture drop to heating initial opening, will here by selecting during compressor is run with smaller first frequency
Its aperture drops to heating initial opening, and can further avoid compressor lubricant oil solidification leads to the risk blocked, thus into one
Step improves heating reliability when defrost is exited.Because after compressor 5 is by slow raising frequency to lower first frequency at this moment,
The refrigerant flow rate in air-conditioning system pipeline has tended towards stability at this time, thus 2 aperture of expansion valve is reduced to heating initial opening
When, it can be so that the refrigerant in system pipeline proceeds by the flow circuit normally heated, delivery temperature rises, i.e., indoor unit exchanges heat
Temperature in device 3 is begun to ramp up, and the anti-cold wind time is reduced with this, you can starts to control the normally heating raising frequency of compressor 5.
Further, second preset time is run with first frequency in above-mentioned compressor 5 and starts frequency until rising to heating
During rate, the period that 2 aperture of expansion valve drops to heating initial opening can be more preferably compressor 5 with first frequency
It runs in the second preset time, as most suitable in the T4 periods in Fig. 3.Maximum when above-mentioned expansion valve 2 is exited from defrost action
Aperture, which drops to, heats the starting and ending time for exporting aperture preferably at the time of the starting and ending of the second preset time,
Can certainly be in the second preset time T 4.
Further, 2 aperture of expansion valve drop to heating initial opening rate V3 it is relatively low, generally normal heating is item
The 1/4-2/3 of part aperture rate, preferably 1/3, to be further reduced the shadow that shuts off brought to refrigerant when 2 aperture of expansion valve declines
It rings.
And by controlling compressor 5 with the second quick raising frequencies of rate V2 higher than first rate V1 within the subsequent T5 times
To heating original frequency, starting normal heating process at this time, the general values of V2 here are 1Hz/ seconds, are higher than V1 values, because
This present pipe-line system is stable, in order to reach quick heating effect so that when the quick raising frequency of compressor to heating starts
The first platform frequency M values, this first platform frequency M value is generally the half of maximum heating frequency.
What it is in the T5 times is subsequently after compressor runs a period of time with the first platform frequency M values so that in system pipeline
Refrigerant flowing really settle out, at this time can be true according to the difference of current indoor environment temperature T1 values and set temperature TS values
The raising frequency frequency for determining compressor 5, to control air conditioner operation so that room temperature reaches set temperature TS values, to meet user's
The heating needs of set temperature.
By taking a specific control process as an example, it is 15 minutes persistently to reach T1 in controller of air conditioner control defrost action
Afterwards, it controls the above-mentioned of air conditioner to be responsible for starting to execute defrost action, controls compressor 5 within the time that T2 is 30 seconds or so at this time
It shuts down, and controls four-way valve 4 and open during this period, and the closing during outer wind turbine 7 has defrost to act is switched to unlatching, herein
Period expansion valve 2 maintains the maximum opening during defrost action as constant in executed the aperture that 480 steps reach；
Within the T3 periods, starts to control compressor 5 and be started from scratch within such as 0.3Hz/ seconds rising with the V1 frequencies compared with low velocity
To first frequency value such as 20Hz, and it is about 66 seconds to run the second preset time, and by this 66 seconds, the refrigerant in system was swollen at this time
Reduction during the pressure of 2 inlet of swollen valve is relatively existing so that shut off effect relatively existing reduction of the expansion valve 2 to refrigerant；And
To continue control compressor 5 within the T4 times then to maintain with first frequency, this T4 time generally maintains 45 seconds or so time,
Refrigerant flowing during this in further control piper is stablized, while expansion valve 2 480 from maximum opening is controlled in this 45 seconds
Step is reduced to heating initial opening such as 230 steps, is avoided when 2 aperture of expansion valve reduces due to compressor while quick raising frequency band with this
The expansion valve 2 come, which shuts off, aggravates caused lubricating oil freezing problem.
After the T4 times, control compressor 5 is with relatively rapid higher than the second rate V2 such as 1Hz/ second of first rate V1
Raising frequency executes normal heating cyclic process with this.
In the present embodiment, by during air conditioner runs heating defrost, detecting that air conditioner exits defrost condition, and
It is above-mentioned exit defrost condition and meet when, control compressor is out of service in the first preset time and controls outdoor fan unlatching
It commutates with four-way valve, next controls compressor with the first frequency of lower first rate raising frequency to low frequency, and run
Second preset time then controls the running frequency that compressor is started with higher second rate raising frequency to heating, and above-mentioned
Compressor with first frequency run the second preset time until raising frequency to heating initiation culture during, control expansion valve opening with compared with
Low rate is reduced to heating initial opening.Finally control compressor carries out FREQUENCY CONTROL according to normal heating.The present embodiment
By during starting running frequency to heating to quick raising frequency after allowing compressor defrost to exit the off-mode of action, insertion one
Low speed raising frequency to low frequency first frequency and maintain operation the second preset time operational process, mitigated compressor and quickly started
It brings in pipeline refrigerant pressure to change too fast problem, is avoided with this and cause between expansion valve inlet and outlet that pressure difference is excessive to be caused
Refrigerant temperature after expansion valve outlet is too low, brings the compressor lubricant oil mixed with refrigerant solidification that pipeline blockage is caused to cause to make
Thermal fault problem.
The present invention also proposes a kind of air conditioner, as shown in figure 4, including indoor unit 200 and outdoor unit 100, which is
Transducer air conditioning wherein has indoor controller 210 on indoor unit 200, the control instruction for receiving air conditioner, and controls air-conditioning
The stepper motor work of indoor unit the load such as inner blower 220, controlled level wind guide strip 230 of device, outdoor unit 100 are also equipped with
Outdoor controller 110 is additionally provided with driven compressor module 120 and outer wind turbine drive module 140, driven compressor on outdoor unit
Module 120 controls the operation of compressor 150 under the control of outdoor controller 110, and outer wind turbine drive module is controlled in outdoor unit
The outer wind turbine 160 of the lower control of the control of device 110 is run, and indoor controller 210 is established by electric current loop with outdoor controller 110 and communicated,
The outdoor control instruction that indoor controller 210 sends air conditioner is such as compressed to outdoor controller 110 with controlling outdoor unit load
The work such as machine 150, outer wind turbine 160, four-way valve 110.Wherein indoor machine controller or outdoor controller unit such as Fig. 5 institutes
Show, which includes memory 20, processor 10 and be stored in the air-conditioning that can be run on memory 20 and on processor 10
Device controls program 30, and air conditioner control program 30 realizes that the air conditioner refrigeration in above-described embodiment opens when being executed by processor 10
Flowing control method.
Such as air conditioner control program 30 can be used for executing the finger of the air conditioner cooling activation control method in following steps
It enables：
Step S10, receive air conditioner exit defrost instruction when, control compressor 5 it is out of service, control compressor 5
In the first preset time out of service, control outdoor fan 7, which is opened and controls four-way valve 4, carries out heating commutation；
Step S20, after the first preset time, control 5 frequency of compressor rises to the first predeterminated frequency with first rate,
And keep the operation of the first predeterminated frequency；
Step S30, compressor 5 keep the first predeterminated frequency run the second preset time after, control compressor frequency 5 rates with
Second rate rises to heating and starts running frequency, wherein the frequency in compressor 5 is supreme with the operation beginning of the first predeterminated frequency
During being raised to heating initiation culture, control expansion valve 2 drops to heating initial opening.
The present invention also proposes a kind of computer read/write memory medium, as shown in figure 5, the computer read/write memory medium
It is stored with the control method program 30 of air conditioner, which can be connect with controller of air conditioner 10
Memory 20, or can or the pocket memory used such as USB flash disk, SD card can be moved such as FLASH memory
Deng above-mentioned memory 20 can also integrate in the controller 30, in order to control the internal memory of device 30.Air conditioner controls program quilt
Processor realizes the air conditioner cooling activation control method in above-described embodiment when executing.
For example, air conditioner control program can be used for executing the instruction that the air conditioner in following steps starts control method：
Step S10, receive air conditioner exit defrost instruction when, control compressor 5 it is out of service, control compressor 5
In the first preset time out of service, control outdoor fan 7, which is opened and controls four-way valve 4, carries out heating commutation；
Step S20, after the first preset time, control 5 frequency of compressor rises to the first predeterminated frequency with first rate,
And keep the operation of the first predeterminated frequency；
Step S30, compressor 5 keep the first predeterminated frequency run the second preset time after, control compressor frequency 5 rates with
Second rate rises to heating and starts running frequency, wherein the frequency in compressor 5 is supreme with the operation beginning of the first predeterminated frequency
During being raised to heating initiation culture, control expansion valve 2 drops to heating initial opening.
In the description of this specification, the description meaning of reference term " first embodiment ", " second embodiment ", " example " etc.
Refer to specific method, device or feature described in conjunction with this embodiment or example be contained at least one embodiment of the present invention or
In example.In the present specification, a schematic expression of the above terms does not necessarily refer to the same embodiment or example.And
And specific features, method, apparatus or the feature of description can be in any one or more of the embodiments or examples with suitable sides
Formula combines.In addition, without conflicting with each other, those skilled in the art can will be described in this specification different real
The feature for applying example or example and different embodiments or examples is combined.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of air conditioner heat-production defrosting control method, which is characterized in that the air conditioner heat-production defrosting control method includes：
Receive air conditioner exit defrost instruction when, control compressor it is out of service, control compressor it is out of service first
In preset time, control outdoor fan, which is opened and controls four-way valve, carries out heating commutation；
After first preset time, controls the compressor frequency and the first predeterminated frequency is risen to first rate, and protect
Hold the first predeterminated frequency operation；
After the compressor keeps the first predeterminated frequency to run second preset time, the compressor frequency is controlled with the
Two rates rise to heating and start running frequency, wherein the frequency in the compressor is supreme with the operation beginning of the first predeterminated frequency
During being raised to heating initiation culture, control expansion valve drops to heating initial opening.
2. air conditioner heat-production defrosting control method as described in claim 1, which is characterized in that second rate is more than described
First rate.
3. air conditioner heat-production defrosting control method as described in claim 1, which is characterized in that
The first frequency is with the second frequency ratio range：1/3-2/3.
4. air conditioner heat-production defrosting control method as claimed in claim 3, which is characterized in that
The first frequency and the second frequency ratio are preferably 1/2.
5. air conditioner heat-production defrosting control method as described in claim 1, which is characterized in that controlling opening for the expansion valve
Before degree declines, the expansion valve operation maximum opening is controlled.
6. air conditioner heat-production defrosting control method as claimed in claim 5, which is characterized in that described in the compressor frequency
The second preset time is run with the first frequency to the expansion valve during rising to the heating initiation culture, is controlled to decline
Include to heating initial opening：
It is run in the second preset time with the first predeterminated frequency in the compressor, controls the expansion valve and drop to heating initially
Aperture.
7. air conditioner heat-production defrosting control method as described in claim 1, which is characterized in that detect that air conditioner moves back described
Further include before going out defrost：
When detection outdoor heat exchanger temperature value rises to preset temperature value, sends out air conditioner and exit defrost instruction.
8. air conditioner heat-production defrosting control method as described in claim 1, which is characterized in that detect that air conditioner moves back described
Further include before going out defrost：
Timing is carried out to defrost operating status, when the timing time is more than third preset time, sends out exiting of air conditioner
Frost instruction.
9. a kind of air conditioner, which is characterized in that the air conditioner includes indoor unit and outdoor unit, is arranged wherein in indoor unit indoor
Wind turbine and indoor heat exchanger, setting outdoor heat exchanger, outdoor fan, four-way valve, expansion valve and compressor in outdoor unit, indoors
Controller is also set up in machine and/or outdoor unit, the controller controls the indoor fan, outdoor fan, four-way valve, expansion valve
And compressor operating, so that the air conditioner runs heating mode, and enters defrost operation when detecting into defrost condition,
And exit defrost operational process detecting that the when of exiting defrost condition executes；The controller include memory, processor with
And it is stored in the air conditioner control program that can be run on the memory and on the processor, the air conditioner controls program
Such as air conditioner heat-production defrosting control method described in any item of the claim 1 to 8 is realized when being executed by the processor.
10. a kind of computer readable storage medium, which is characterized in that be stored with air conditioner on the computer readable storage medium
Program is controlled, the air conditioner control program realizes such as air-conditioning described in any item of the claim 1 to 8 when being executed by processor
Device heats the step of defrosting control method.
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| CN110094832A (en) * | 2019-05-16 | 2019-08-06 | 滁州星联电子有限公司 | A kind of work Defrost method of convertible frequency air-conditioner |
| CN110470017A (en) * | 2019-08-03 | 2019-11-19 | 青岛海尔空调器有限总公司 | Control method and device, air-conditioning for air-conditioner defrosting |
| CN110486891A (en) * | 2019-08-22 | 2019-11-22 | 海信（山东）空调有限公司 | A kind of defrosting control method and air conditioner |
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