CN114893865B - Air conditioner defrosting control method and device, electronic equipment and storage medium - Google Patents
Air conditioner defrosting control method and device, electronic equipment and storage medium Download PDFInfo
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- CN114893865B CN114893865B CN202210692012.XA CN202210692012A CN114893865B CN 114893865 B CN114893865 B CN 114893865B CN 202210692012 A CN202210692012 A CN 202210692012A CN 114893865 B CN114893865 B CN 114893865B
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- 238000010257 thawing Methods 0.000 title claims abstract description 200
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000011217 control strategy Methods 0.000 claims abstract description 78
- 238000010438 heat treatment Methods 0.000 description 23
- 238000004378 air conditioning Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- 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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Defrosting Systems (AREA)
Abstract
The invention discloses an air conditioner defrosting control method, an air conditioner defrosting control device, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring continuous operation time of an air conditioner; determining a defrosting control strategy corresponding to the continuous operation time length; and executing control on the air conditioner according to the defrosting control strategy. The invention determines defrosting control logic based on the continuous operation time of the air conditioner, can realize accurate defrosting control, and solves the problem of inaccurate defrosting control in the related art.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to an air conditioning defrosting control method, an air conditioning defrosting control device, electronic equipment and a storage medium.
Background
The air conditioner has the functions of refrigeration, heating, dehumidification, air supply and the like, and the low-temperature heating comfort is always a hot spot for research of various companies. In a low-temperature environment, the air conditioner external unit is easy to frost, and the frosting needs to be stopped for defrosting. In the related art, the defrosting control scheme is to enter a defrosting mode according to the detected temperature of the external machine, but the defrosting control is inaccurate due to the mode. Meanwhile, when the outdoor unit is frozen by snow, abnormal temperature detection of the outside environment temperature sensor occurs, so that a defrosting mode cannot be entered, and problems such as freezing of a condenser occur.
Disclosure of Invention
The invention aims to overcome the technical defects and provide an air conditioner defrosting control method, an air conditioner defrosting control device, electronic equipment and a storage medium, which at least solve the technical problem of inaccurate defrosting control in the related art.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides an air conditioner defrosting control method, including: acquiring continuous operation time of an air conditioner; determining a defrosting control strategy corresponding to the continuous operation time length; and executing control on the air conditioner according to the defrosting control strategy.
Optionally, the determining the defrosting control policy corresponding to the continuous operation duration includes: determining that the continuous operation time reaches a target time range; and acquiring a defrosting control strategy corresponding to the target duration range.
Optionally, the obtaining a defrosting control policy corresponding to the target duration range includes: acquiring the continuous operation time length of the air conditioner within the target time length range, and the air outlet temperature of the air conditioner; and determining the corresponding defrosting control strategy according to the air outlet temperature.
Optionally, the determining the corresponding defrosting control strategy according to the outlet air temperature includes: judging whether the duration time of the air outlet temperature being smaller than a first preset temperature reaches a first preset duration time or not, obtaining a first judging result, and determining the corresponding defrosting control strategy according to the first judging result, wherein the defrosting control strategy is used for controlling the air conditioner to enter a defrosting mode under the condition that the duration time reaches the first preset duration time; and/or obtaining the longest stable value of the air outlet temperature of the air conditioner after the air conditioner operates for a specified period of time, judging whether the difference value between the air outlet temperature and the longest stable value of the air outlet temperature meets a preset condition, obtaining a second judgment result, and determining the corresponding defrosting control strategy according to the second judgment result, wherein the defrosting control strategy is used for controlling the air conditioner to enter a defrosting mode under the condition that the difference value meets the preset condition.
Optionally, the determining the corresponding defrosting control strategy according to the outlet air temperature includes: judging whether the duration time of the temperature of the evaporator of the air conditioner being smaller than the third preset temperature reaches the second preset time length when the temperature of the air outlet is smaller than the second preset temperature, and obtaining a third judging result; and determining the corresponding defrosting control strategy according to the third judging result, wherein the defrosting control strategy is used for controlling the air conditioner to enter a defrosting mode under the condition that the duration reaches the second preset duration.
Optionally, in the case that the air conditioner is in a defrosting mode, the method further includes: acquiring the condenser temperature of the air conditioner, judging whether the continuous time length of which the condenser temperature is greater than the preset condenser temperature reaches a third preset time length or not, obtaining a fourth judging result, and determining whether to exit a defrosting mode according to the fourth judging result; or, acquiring continuous defrosting time, judging whether the continuous defrosting time reaches a fourth preset time, obtaining a fifth judging result, and determining whether to exit the defrosting mode according to the fifth judging result.
In a second aspect, the present invention also provides an air conditioner defrosting control device, including: the acquisition unit is used for acquiring the continuous operation time of the air conditioner; the determining unit is used for determining a defrosting control strategy corresponding to the continuous operation duration; and the control unit is used for executing control on the air conditioner according to the defrosting control strategy.
Optionally, the determining unit is further configured to: determining that the continuous operation time reaches a target time range; and acquiring a defrosting control strategy corresponding to the target duration range.
Optionally, the determining unit is further configured to: acquiring the continuous operation time length of the air conditioner within the target time length range, and the air outlet temperature of the air conditioner; and determining the corresponding defrosting control strategy according to the air outlet temperature.
Optionally, the determining unit is further configured to: judging whether the duration time of the air outlet temperature being smaller than a first preset temperature reaches a first preset duration time or not, obtaining a first judging result, and determining the corresponding defrosting control strategy according to the first judging result, wherein the defrosting control strategy is used for controlling the air conditioner to enter a defrosting mode under the condition that the duration time reaches the first preset duration time; and/or obtaining the longest stable value of the air outlet temperature of the air conditioner after the air conditioner operates for a specified period of time, judging whether the difference value between the air outlet temperature and the longest stable value of the air outlet temperature meets a preset condition, obtaining a second judgment result, and determining the corresponding defrosting control strategy according to the second judgment result, wherein the defrosting control strategy is used for controlling the air conditioner to enter a defrosting mode under the condition that the difference value meets the preset condition.
Optionally, the determining unit is further configured to: judging whether the duration time of the temperature of the evaporator of the air conditioner being smaller than the third preset temperature reaches the second preset time length when the temperature of the air outlet is smaller than the second preset temperature, and obtaining a third judging result; and determining the corresponding defrosting control strategy according to the third judging result, wherein the defrosting control strategy is used for controlling the air conditioner to enter a defrosting mode under the condition that the duration reaches the second preset duration.
Optionally, in the case that the air conditioner is in a defrosting mode, the method further includes: the first defrosting mode exit unit is used for acquiring the condenser temperature of the air conditioner, judging whether the continuous time length of which the condenser temperature is greater than the preset condenser temperature reaches a third preset time length or not, obtaining a fourth judging result, and determining whether to exit the defrosting mode according to the fourth judging result; or the second defrosting mode exit unit is used for acquiring continuous defrosting time, judging whether the continuous defrosting time reaches a fourth preset time, obtaining a fifth judging result, and determining whether to exit the defrosting mode according to the fifth judging result.
In a third aspect, the present invention also provides an electronic device, including: a processor and a memory; the memory has stored thereon a computer readable program executable by the processor; the processor, when executing the computer readable program, implements the steps of the method according to any of the first aspects.
In a fourth aspect, the present invention also provides a computer readable storage medium storing one or more programs executable by one or more processors to implement the steps of the method of any of the first aspects.
According to the air conditioner defrosting control method, the device, the electronic equipment and the storage medium, the defrosting control strategy corresponding to the continuous operation time is determined by acquiring the continuous operation time of the air conditioner, and the air conditioner is controlled according to the defrosting control strategy, so that the defrosting control logic is determined based on the continuous operation time of the air conditioner, the accurate defrosting control can be realized, and the problem of inaccurate defrosting control in the related art is solved.
Drawings
Fig. 1 is a flowchart of an embodiment of an air conditioner defrosting control method provided by the present invention;
fig. 2 is a schematic diagram of an embodiment of an air conditioner defrosting control device provided by the invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
According to an embodiment of the present invention, there is provided an air conditioner defrosting control method, which may be applied to a control device of an air conditioner or an air conditioner, as shown in fig. 1, and may include:
step S102, obtaining continuous operation duration of the air conditioner.
In this step, the continuous operation time period of the air conditioner is used to characterize the continuous cumulative operation time period counted from the start of the operation of the air conditioner compressor. In the air-conditioning heating mode, the four-way valve is electrified, and the compressor starts to time when being started.
Step S104, determining a defrosting control strategy corresponding to the continuous operation duration.
In this step, the continuous operation time length and the defrosting control policy have a direct correspondence or an indirect correspondence. For example, different continuous operation durations correspond to different defrosting control strategies. For example, when the continuous operation duration meets the preset condition, acquiring a current corresponding defrosting control strategy; the preset condition may include a plurality of conditions.
And step S106, executing control on the air conditioner according to the defrosting control strategy.
The defrosting control strategy can be to control the air conditioner in different modes when different conditions are met so as to control the air conditioner to perform defrosting or not perform defrosting. For example, the defrosting control strategy controls to perform defrosting if the current parameter satisfies a specified condition, and controls the air conditioner based on the strategy.
According to the air conditioner defrosting control method, the defrosting control strategy corresponding to the continuous operation time length is determined by obtaining the continuous operation time length of the air conditioner, and the air conditioner is controlled according to the defrosting control strategy, so that the defrosting control logic is determined based on the continuous operation time length of the air conditioner, the accurate defrosting control can be realized, and the problem of inaccurate defrosting control in the related art is solved.
Optionally, the determining the defrosting control policy corresponding to the continuous operation duration includes: determining that the continuous operation time reaches a target time range; and acquiring a defrosting control strategy corresponding to the target duration range.
Wherein, different target duration ranges may correspond to different defrosting control strategies. The target duration range may be up to a specified duration length.
Optionally, the obtaining a defrosting control policy corresponding to the target duration range includes: acquiring the continuous operation time length of the air conditioner within the target time length range, and the air outlet temperature of the air conditioner; and determining the corresponding defrosting control strategy according to the air outlet temperature.
The embodiment can detect the air outlet temperature according to the air outlet temperature sensor of the air conditioner. The embodiment can more finely perform the air conditioner defrosting control based on the outlet air temperature.
Optionally, the determining the corresponding defrosting control strategy according to the outlet air temperature includes: judging whether the duration time of the air outlet temperature being smaller than a first preset temperature reaches a first preset duration time or not, obtaining a first judging result, and determining the corresponding defrosting control strategy according to the first judging result, wherein the defrosting control strategy is used for controlling the air conditioner to enter a defrosting mode under the condition that the duration time reaches the first preset duration time; and/or obtaining the longest stable value of the air outlet temperature of the air conditioner after the air conditioner operates for a specified period of time, judging whether the difference value between the air outlet temperature and the longest stable value of the air outlet temperature meets a preset condition, obtaining a second judgment result, and determining the corresponding defrosting control strategy according to the second judgment result, wherein the defrosting control strategy is used for controlling the air conditioner to enter a defrosting mode under the condition that the difference value meets the preset condition.
In this embodiment, the corresponding defrosting control policy may be determined only according to the first determination result, or the corresponding defrosting control policy may be determined only according to the second determination result. Or preferably, the corresponding defrosting control strategy is determined according to the first judging result and the second judging result at the same time.
Preferably, in the case where the target duration range is greater than 45 minutes: the first preset temperature is 31 ℃, and the first preset time period is 3 minutes; and/or, the preset condition is that the difference between the air outlet temperature and the longest stable value of the air outlet temperature is less than or equal to-8 ℃.
Preferably, in the case where the target duration range is greater than 50 minutes: the first preset temperature is 32 ℃, and the first preset time period is 2 minutes; and/or, the preset condition is that the difference between the air outlet temperature and the longest stable value of the air outlet temperature is less than or equal to minus 6 ℃.
Optionally, the determining the corresponding defrosting control strategy according to the outlet air temperature includes: judging whether the duration time of the temperature of the evaporator of the air conditioner being smaller than the third preset temperature reaches the second preset time length when the temperature of the air outlet is smaller than the second preset temperature, and obtaining a third judging result; and determining the corresponding defrosting control strategy according to the third judging result, wherein the defrosting control strategy is used for controlling the air conditioner to enter a defrosting mode under the condition that the duration reaches the second preset duration.
Preferably, in the case where the target duration range is greater than 45 minutes: the second preset temperature is 31 ℃, the third preset temperature is 35 ℃, and the second preset time period is 3 minutes; or,
preferably, in the case where the target time length range is greater than 90 minutes: the second preset temperature is 28 ℃, the third preset temperature is 33 ℃, and the second preset time period is 3 minutes.
According to the embodiment, whether the air conditioner enters the defrosting mode or not can be accurately judged and controlled in a time-sharing period through the specific target duration range, a control strategy capable of accurately defrosting is provided, the defrosting cycle time is shortened, the heating quantity during heating operation is improved, the defrosting time is shorter, indoor temperature fluctuation is reduced, and heating comfort is improved.
Optionally, in the case that the air conditioner is in a defrosting mode, the method further includes: acquiring the condenser temperature of the air conditioner, judging whether the continuous time length of which the condenser temperature is greater than the preset condenser temperature reaches a third preset time length or not, obtaining a fourth judging result, and determining whether to exit a defrosting mode according to the fourth judging result; or, acquiring continuous defrosting time, judging whether the continuous defrosting time reaches a fourth preset time, obtaining a fifth judging result, and determining whether to exit the defrosting mode according to the fifth judging result.
Preferably, the preset condenser temperature is 12 ℃, and the third preset duration is 15s; or the preset condenser temperature is 6 ℃, and the third preset duration is 80s.
According to the embodiment, whether the defrosting mode is exited or not can be judged through the temperature of the condenser or the continuous defrosting time, the control strategy capable of accurately exiting the defrosting is provided, the defrosting cycle time is shortened, the heating quantity during heating operation is improved, the defrosting time is shorter, indoor temperature fluctuation is reduced, and heating comfort is improved.
The embodiment solves the problems that the external machine heats for a long time, the frosting is thicker, the heating effect is poor, the defrosting time is long, the comfortableness is poor, and the judgment is inaccurate due to the fact that the external machine enters the defrosting according to the temperature detection of the external machine. And even when the outdoor unit is frozen by snow during the snowing, the temperature of the outside environment temperature sensor detects abnormality, and the air conditioner can be smoothly controlled to defrost. The embodiment shortens the frosting cycle time, improves the heating quantity during the heating operation, has short frosting time, effectively reduces the indoor temperature fluctuation and is beneficial to improving the heating comfort. The invention provides a control method capable of accurately defrosting by reducing the cost while reducing the environmental temperature sensor of the existing air conditioner.
According to an embodiment of the present invention, there is also provided another air conditioner defrosting control method, including:
judging defrosting starting conditions:
in the heating mode, the four-way valve is electrified, and the compressor starts to time when being started. The longest steady value of the outlet air temperature after the compressor is continuously operated for 10 minutes to 15 minutes is recorded and is expressed as: t (T) Go out 0 (preferably, the value is re-valued after each defrost is completed).
Wherein, condition one: when the compressor starts from timing, the accumulated running time is 45 minutes, and then the T is judged Out of Defrosting is entered if the following 2 conditions are met:
a)T out of Less than 31 ℃ and a duration of greater than 3 minutes
b)T Out of -T Go out 0 ≦-8℃
Condition II: determination of T after 50 minutes of cumulative operation Out of Defrosting is entered if the following 2 conditions are met:
a)T out of Less than 32 ℃ (E) and for a duration greater than 2 minutes;
b)T out of -T Go out 0 And (E) is less than or equal to-6 ℃, and defrosting is performed.
Condition three, judging after running for 45 minutes in an accumulated wayT Out of ：
If T Out of Less than 31 ℃, and T Steaming And after the temperature is lower than 35 ℃ and the time lasts for 3 minutes, defrosting is directly carried out.
Condition four: determination T after 90 minutes of cumulative operation Out of ：
If T Out of Less than 28 ℃, and T Steaming And (3) directly entering defrosting after the duration of time of less than 33 ℃ is 3 minutes.
Optionally, if the compressor is stopped within 2 minutes of starting the compressor, resetting the defrosting timing; and stopping the compressor more than 2 minutes, and not resetting the defrosting timing. After the defrosting action is finished or the mode is changed into refrigeration or dehumidification, the defrosting timer is cleared.
Judging defrosting end conditions:
finishing defrosting when one of the following three conditions is met, and transferring to common heating
When T is def Not less than 12 ℃ (E) and lasting for 15s;
when T is def More than or equal to 6 ℃ (E) and lasting for 80s;
when the defrosting time is more than or equal to 10 minutes.
Wherein T is def For the temperature value detected by the condenser exit defrosting temperature sensor, the temperature value detected by the air outlet temperature sensor of the internal machine is T, and the temperature value detected by the temperature sensor in the middle of the evaporator is T.
The embodiment solves the problems that the external machine heats for a long time, the frosting is thicker, the heating effect is poor, the defrosting time is long, the comfortableness is poor, and the judgment is inaccurate due to the fact that the external machine enters the defrosting according to the temperature detection of the external machine. And even when the outdoor unit is frozen by snow during the snowing, the temperature of the outside environment temperature sensor detects abnormality, and the air conditioner can be smoothly controlled to defrost. The embodiment shortens the frosting cycle time, improves the heating quantity during the heating operation, has short frosting time, effectively reduces the indoor temperature fluctuation and is beneficial to improving the heating comfort. By reducing the environmental temperature sensor of the existing air conditioner, the cost is reduced, and meanwhile, the control method capable of accurately defrosting is provided.
According to an embodiment of the present invention, there is also provided an air conditioner defrosting control device for executing the above air conditioner defrosting control method, as shown in fig. 2, the device includes:
an acquisition unit 20 for acquiring a continuous operation time of the air conditioner;
a determining unit 22, configured to determine a defrosting control policy corresponding to the continuous operation duration;
and a control unit 24 for performing control on the air conditioner according to the defrosting control strategy.
According to the air conditioner defrosting control device, the defrosting control strategy corresponding to the continuous operation time length is determined by acquiring the continuous operation time length of the air conditioner, and the air conditioner is controlled according to the defrosting control strategy, so that the defrosting control logic is determined based on the continuous operation time length of the air conditioner, accurate defrosting can be realized, and the problem of inaccurate defrosting control in the related art is solved.
Optionally, the determining unit is further configured to: determining that the continuous operation time reaches a target time range; and acquiring a defrosting control strategy corresponding to the target duration range.
Optionally, the determining unit is further configured to: acquiring the continuous operation time length of the air conditioner within the target time length range, and the air outlet temperature of the air conditioner; and determining the corresponding defrosting control strategy according to the air outlet temperature.
Optionally, the determining unit is further configured to: judging whether the duration time of the air outlet temperature being smaller than a first preset temperature reaches a first preset duration time or not, obtaining a first judging result, and determining the corresponding defrosting control strategy according to the first judging result, wherein the defrosting control strategy is used for controlling the air conditioner to enter a defrosting mode under the condition that the duration time reaches the first preset duration time; and/or obtaining the longest stable value of the air outlet temperature of the air conditioner after the air conditioner operates for a specified period of time, judging whether the difference value between the air outlet temperature and the longest stable value of the air outlet temperature meets a preset condition, obtaining a second judgment result, and determining the corresponding defrosting control strategy according to the second judgment result, wherein the defrosting control strategy is used for controlling the air conditioner to enter a defrosting mode under the condition that the difference value meets the preset condition.
Optionally, the determining unit is further configured to: judging whether the duration time of the temperature of the evaporator of the air conditioner being smaller than the third preset temperature reaches the second preset time length when the temperature of the air outlet is smaller than the second preset temperature, and obtaining a third judging result; and determining the corresponding defrosting control strategy according to the third judging result, wherein the defrosting control strategy is used for controlling the air conditioner to enter a defrosting mode under the condition that the duration reaches the second preset duration.
Optionally, in the case that the air conditioner is in a defrosting mode, the method further includes: the first defrosting mode exit unit is used for acquiring the condenser temperature of the air conditioner, judging whether the continuous time length of which the condenser temperature is greater than the preset condenser temperature reaches a third preset time length or not, obtaining a fourth judging result, and determining whether to exit the defrosting mode according to the fourth judging result; or the second defrosting mode exit unit is used for acquiring continuous defrosting time, judging whether the continuous defrosting time reaches a fourth preset time, obtaining a fifth judging result, and determining whether to exit the defrosting mode according to the fifth judging result.
The embodiment solves the problems that the external machine heats for a long time, the frosting is thicker, the heating effect is poor, the defrosting time is long, the comfortableness is poor, and the judgment is inaccurate due to the fact that the external machine enters the defrosting according to the temperature detection of the external machine. And even when the outdoor unit is frozen by snow during the snowing, the temperature of the outside environment temperature sensor detects abnormality, and the air conditioner can be smoothly controlled to defrost. The embodiment shortens the frosting cycle time, improves the heating quantity during the heating operation, has short frosting time, effectively reduces the indoor temperature fluctuation and is beneficial to improving the heating comfort. By reducing the environmental temperature sensor of the existing air conditioner, the control strategy capable of accurately defrosting is provided while the cost is reduced.
According to an embodiment of the present invention, there is also provided an electronic device including: a processor and a memory; the memory has stored thereon a computer readable program executable by the processor; the steps of any of the methods described above are implemented when the processor executes the computer readable program.
According to an embodiment of the present invention, there is also provided a computer-readable storage medium storing one or more programs executable by one or more processors to implement the steps of any of the methods described above.
Of course, those skilled in the art will appreciate that implementing all or part of the above-described methods may be implemented by a computer program for instructing relevant hardware (e.g., a processor, a controller, etc.), where the program may be stored in a computer-readable storage medium, and where the program may include the steps of the above-described method embodiments when executed. The storage medium may be a memory, a magnetic disk, an optical disk, or the like.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any other corresponding changes and modifications made in accordance with the technical idea of the present invention shall be included in the scope of the claims of the present invention.
Claims (7)
1. An air conditioner defrosting control method, characterized by comprising the following steps:
acquiring continuous operation time of an air conditioner;
determining a defrosting control strategy corresponding to the continuous operation time length;
executing control on the air conditioner according to the defrosting control strategy;
the determining the defrosting control strategy corresponding to the continuous operation duration comprises the following steps:
determining that the continuous operation time reaches a target time range;
acquiring defrosting control strategies corresponding to the target duration ranges, wherein different target duration ranges correspond to different defrosting control strategies;
the obtaining the defrosting control strategy corresponding to the target duration range comprises the following steps:
acquiring the continuous operation time length of the air conditioner within the target time length range, and the air outlet temperature of the air conditioner;
determining the corresponding defrosting control strategy according to the air outlet temperature;
the determining the corresponding defrosting control strategy according to the air outlet temperature comprises the following steps:
judging whether the duration time of the air outlet temperature being smaller than a first preset temperature reaches a first preset time length or not, obtaining a first judging result, and determining the corresponding defrosting control strategy according to the first judging result, wherein the defrosting control strategy is used for controlling the air conditioner to enter a defrosting mode under the condition that the duration time reaches the first preset time length, and different target time length ranges correspond to different first preset temperatures and different first preset time lengths; and/or the number of the groups of groups,
obtaining the longest stable value of the air-conditioner air outlet temperature after the air-conditioner operates for a specified time, judging whether a difference value between the air-outlet temperature and the longest stable value of the air-outlet temperature meets a preset condition, obtaining a second judging result, and determining the corresponding defrosting control strategy according to the second judging result, wherein the defrosting control strategy is used for controlling the air-conditioner to enter a defrosting mode under the condition that the difference value meets the preset condition, and different target time ranges correspond to different preset conditions.
2. The method of claim 1, wherein the determining the corresponding defrost control strategy based on the outlet air temperature comprises:
judging whether the duration time of the temperature of the evaporator of the air conditioner being smaller than the third preset temperature reaches the second preset time length when the temperature of the air outlet is smaller than the second preset temperature, and obtaining a third judging result;
determining the corresponding defrosting control strategy according to the third judging result,
and under the condition that the duration time reaches the second preset duration time, controlling the air conditioner to enter a defrosting mode by the defrosting control strategy.
3. The method according to any one of claims 1-2, further comprising, in the case where the air conditioner is in a defrost mode:
acquiring the condenser temperature of the air conditioner, judging whether the continuous time length of which the condenser temperature is greater than the preset condenser temperature reaches a third preset time length or not, obtaining a fourth judging result, and determining whether to exit a defrosting mode according to the fourth judging result; or,
and obtaining continuous defrosting time, judging whether the continuous defrosting time reaches a fourth preset time, obtaining a fifth judging result, and determining whether to exit the defrosting mode according to the fifth judging result.
4. An air conditioner defrosting control device, characterized by being adapted to implement the method of any one of claims 1 to 3, comprising:
the acquisition unit is used for acquiring the continuous operation time of the air conditioner;
the determining unit is used for determining a defrosting control strategy corresponding to the continuous operation duration;
and the control unit is used for executing control on the air conditioner according to the defrosting control strategy.
5. The apparatus of claim 4, wherein the determining unit is further configured to:
determining that the continuous operation time reaches a target time range;
and acquiring a defrosting control strategy corresponding to the target duration range.
6. An electronic device, comprising: a processor and a memory;
the memory has stored thereon a computer readable program executable by the processor;
the processor, when executing the computer readable program, implements the steps of the method of any of claims 1-3.
7. A computer readable storage medium storing one or more programs executable by one or more processors to implement the steps in the method of any of claims 1-3.
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| CN105371359A (en) * | 2014-09-01 | 2016-03-02 | Tcl空调器(中山)有限公司 | Air conditioner and defrosting control method of air conditioner |
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| JPS5773336A (en) * | 1980-10-22 | 1982-05-08 | Mitsubishi Electric Corp | Air conditioner controlling method |
| CN103574832B (en) * | 2012-07-25 | 2016-04-27 | 珠海格力电器股份有限公司 | Control method, device and system for defrosting of air conditioner |
| WO2018042611A1 (en) * | 2016-09-02 | 2018-03-08 | 三菱電機株式会社 | Refrigeration air conditioning system |
| CN110017583B (en) * | 2019-03-12 | 2021-12-21 | 青岛海尔空调电子有限公司 | Air conditioner and defrosting control method thereof |
| CN209857256U (en) * | 2019-04-03 | 2019-12-27 | 南京福加自动化科技有限公司 | Low-temperature air conditioner control system |
| CN113587367A (en) * | 2021-08-17 | 2021-11-02 | 广东积微科技有限公司 | Defrosting control method and device for air conditioner and air conditioner |
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| EP2757327A1 (en) * | 2011-09-13 | 2014-07-23 | Mitsubishi Electric Corporation | Refrigeration and air-conditioning device |
| CN105371359A (en) * | 2014-09-01 | 2016-03-02 | Tcl空调器(中山)有限公司 | Air conditioner and defrosting control method of air conditioner |
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