CN110567098A - Defrosting control method and device, air conditioner and storage medium - Google Patents
Defrosting control method and device, air conditioner and storage medium Download PDFInfo
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- CN110567098A CN110567098A CN201910898243.4A CN201910898243A CN110567098A CN 110567098 A CN110567098 A CN 110567098A CN 201910898243 A CN201910898243 A CN 201910898243A CN 110567098 A CN110567098 A CN 110567098A
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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
- F24F11/62—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
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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
- F24F11/62—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
Abstract
The invention provides a defrosting control method and device, an air conditioner and a storage medium, and relates to the technical field of air conditioners. The defrosting control method comprises the following steps: detecting a system current when the air conditioner operates in a heating mode; comparing the system current with a first reference current, and judging the rising and falling trend of the system current; and when the system current is smaller than the first reference current and the system current is in a descending trend, controlling the air conditioner to enter a defrosting mode. According to the defrosting control method, the defrosting control device, the air conditioner and the storage medium, the frosting and defrosting conditions are reflected through the change condition of the system current, the defrosting mode is accurately controlled, the outdoor side frost layer is effectively prevented from deteriorating, and the heating stability of the air conditioner is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a defrosting control method and device, an air conditioner and a storage medium.
Background
with the development of air conditioning technology, comfort becomes an index which is more important when people buy air conditioners.
The defrosting process of the existing air conditioner comprises the steps that a temperature sensor is used for detecting the frosting condition of the outdoor side, before the frost layer of the outdoor side enters a deterioration period, the frost layer is removed to avoid influencing the performance of the air conditioner, but when the temperature sensor is damaged, the air conditioner can enter a timing forced defrosting mode to influence the use comfort level of the air conditioner, therefore, a control method for controlling the air conditioner to enter and exit the defrosting mode by detecting the temperature through the temperature sensor depends on the working state of the temperature sensor, and the control method is not stable and accurate.
Disclosure of Invention
The invention solves the problem that the existing air conditioner can not provide an accurate and stable defrosting control method.
In order to solve the above problems, the present invention provides a defrosting control method, which includes the following steps: detecting a system current when the air conditioner operates in a heating mode; comparing the system current with a first reference current, and judging the rising and falling trend of the system current; and when the system current is smaller than the first reference current and the system current is in a descending trend, controlling the air conditioner to enter a defrosting mode.
According to the defrosting control method, the defrosting and defrosting conditions are reflected through the change condition of the system current, so that the defrosting mode is accurately controlled, the outdoor side frost layer is effectively prevented from deteriorating, and the heating stability of the air conditioner is improved.
Preferably, the determining the rising and falling trend of the system current specifically includes: when the air conditioner runs for a first working time in a heating mode, detecting the system current every other first detection time, and recording the system current detected each time as I1，I2，...，Inand comparing the system current detected each time; when the current of the system is detected for the m time, if I is satisfiedm＜Im-1＜Im-2Wherein m is more than or equal to 3 and less than or equal to n, judging the conditionthe system current is in a downward trend.
According to the defrosting control method, the system current is detected at intervals to judge that the system current is in a descending trend, so that defrosting can be timely carried out to prevent frost layers from entering a deterioration period, and the heating stability of the air conditioner is improved.
Preferably, the defrost control method further comprises the steps of: detecting a first initial system current when an air conditioner runs in a heating mode for a first working time after being started, and determining the first initial system current as the first reference current.
according to the defrosting control method, the first reference current is determined after the first working time is operated in the heating mode, so that the judgment on whether the frost layer has the trend of entering the deterioration period is more real-time and accurate.
Preferably, the defrost control method further comprises the steps of: when the system current detected for the m-th time is larger than the first reference current and/or the system current is in an ascending trend, waiting for the first detection time, detecting the system current for the m + 1-th time, comparing the system current detected for the m + 1-th time with the first reference current, and meanwhile judging the ascending trend of the system current; if the system current detected at the (m + 1) th time is larger than the first reference current and/or the system current is in an ascending trend, waiting for the first detection time, and continuously detecting the system current; and controlling the air conditioner to enter a defrosting mode until the system current is smaller than the first reference current and the system current is in a descending trend.
The defrosting control method provided by the invention can control the air conditioner to enter the defrosting mode in real time through the judgment in the cycle time, and improves the heating stability of the air conditioner.
Preferably, the defrost control method further comprises the steps of: detecting the system current when an air conditioner operates in a defrost mode; comparing the system current with a second reference current, and judging the rising and falling trend of the system current; and when the system current is greater than the second reference current and the system current is in an ascending trend, controlling the air conditioner to exit the defrosting mode.
According to the defrosting control method, the frosting and defrosting conditions are reflected through the change condition of the system current, the precise control of the defrosting mode is realized, the air conditioner is effectively controlled to exit the defrosting mode in time, and the energy consumption of the air conditioner is reduced.
Preferably, the determining the rising and falling trend of the system current specifically includes: when the air conditioner operates in the defrosting mode for a second working time, detecting the system current every second detection time in a detection period, wherein the system current detected each time is marked as I1，I2，...，IpAnd comparing the system current detected each time; when the system current is detected for the q time, if I is satisfiedq＞Iq-1＞Iq-2And q is more than or equal to 3 and less than or equal to p, judging that the system current is in an ascending trend.
According to the defrosting control method, the current of the system is detected at intervals to judge that the current of the system is in the rising trend, so that the air conditioner is effectively controlled to exit the defrosting mode in time, and the energy consumption of the air conditioner is reduced.
Preferably, the defrost control method further comprises the steps of: and detecting a second initial system current when the air conditioner operates in a defrosting mode for a second working time after being started, and determining the second initial system current as the second reference current.
The defrosting control method provided by the invention has the advantages that the second reference current is confirmed after the second working time is operated in the defrosting mode, so that the defrosting control method is more accurate, and the operation condition of the air conditioner can be reflected in real time.
preferably, the defrost control method further comprises the steps of: when the system current detected for the q-th time is smaller than the second reference current and/or the system current is in a descending trend, waiting for the second detection time, detecting the system current for the q + 1-th time, comparing the system current detected for the q + 1-th time with the second reference current, and meanwhile judging the ascending and descending trend of the system current; if the system current detected for the (q + 1) th time is smaller than the second reference current and/or the system current is in a descending trend, waiting for the second detection time and continuously detecting the system current; and controlling the air conditioner to exit the defrosting mode until the system current is greater than the second reference current and the system current is in an ascending trend.
According to the defrosting control method, the air conditioner can exit the defrosting mode in time through judgment in the period time, and the energy consumption of the air conditioner is reduced.
The invention also provides a defrosting control device, which comprises a detection unit, a control unit and a control unit, wherein the detection unit is used for detecting the system current when the air conditioner operates in a heating mode; the judging unit is used for comparing the system current with a first reference current and judging the rising and falling trend of the system current; and the control unit is used for controlling the air conditioner to enter a defrosting mode when the system current is smaller than the first reference current and the system current is in a descending trend.
Compared with the prior art, the defrosting control device and the defrosting control method have the same advantages, and are not repeated herein.
The invention also provides an air conditioner, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium is used for storing a computer program, and the computer program is read by the processor and runs to realize the defrosting control method.
Compared with the prior art, the air conditioner and the defrosting control method have the same advantages, and are not repeated herein.
The present invention also provides a computer-readable storage medium storing a computer program, which when read and executed by a processor, implements the defrost control method described in any of the above.
The computer readable storage medium has the same advantages as the above-mentioned defrost control method over the prior art, and is not described herein again.
Drawings
FIG. 1 illustrates one embodiment of a defrost control method;
FIG. 2 is a second embodiment of a defrosting control method according to the present invention;
FIG. 3 is a general flow diagram of a defrost control method according to an embodiment of the present invention;
fig. 4 is a defrosting control device according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
as shown in fig. 1, an embodiment of the present invention provides a defrosting control method, including the following steps: detecting a system current when the air conditioner operates in a heating mode; comparing the system current with a first reference current, and judging the rising and falling trend of the system current; and when the system current is smaller than the first reference current and the system current is in a descending trend, controlling the air conditioner to enter a defrosting mode.
Specifically, in this embodiment, as shown in fig. 3, when the air conditioner operates in the heating mode, the system current is detected, where the system current refers to the motor current plus the compressor current, and since the evaporation side refrigerant is not completely evaporated when the frosting phenomenon occurs, the system power and the system current decrease, and during the defrosting process, after the frost layer on the outdoor side is eliminated, the condensing temperature rises, and the system power and the system current rise, the frosting and defrosting conditions can be reflected by the rising and falling trend of the current.
After the system current is detected, the system current is compared with a first reference current, wherein the first reference current is an initial system current when the air conditioner operates in a heating mode for a first working time after the air conditioner is started, the initial system current is equal to a stable system current of the air conditioner in the heating mode, the frost layer state corresponding to the current system current can be displayed by comparing the system current with the first reference current, and when the system current is smaller than the first reference current, the trend that the frost layer at the moment enters a deterioration period is shown.
meanwhile, the ascending and descending trend of the system current is also judged, when the system current is smaller than the first reference current and the system current is in the descending trend, the situation that the frost layer is about to enter the deterioration period according to the current temperature descending trend, and the frost layer needs to be defrosted in time to avoid the situation that the heating capacity is rapidly attenuated and the like because the frost layer enters the deterioration period is shown, so that the air conditioner is controlled to enter the defrosting mode.
According to the defrosting control method, the defrosting and defrosting conditions are reflected through the change condition of the system current, so that the defrosting mode is accurately controlled, the outdoor side frost layer is effectively prevented from deteriorating, and the heating stability of the air conditioner is improved.
Preferably, the determining the rising and falling trend of the system current specifically includes: when the air conditioner runs for a first working time in a heating mode, detecting the system current every other first detection time, and recording the system current detected each time as I1，I2，...，InAnd comparing the system current detected each time; when the current of the system is detected for the m time, if I is satisfiedm＜Im-1＜Im-2and m is more than or equal to 3 and less than or equal to n, judging that the system current is in a descending trend.
Specifically, in this embodiment, after the air conditioner operates in the heating mode for the first operating time, the system current is detected every first detection time, for example, every 2 minutes, and the system currents detected many times are respectively denoted as I1，I2，...，Inthen compare I1，I2，...，InThe size of (d); for example, when the system current is detected for the third time, if I is satisfied3＜I2＜I1If the current of the system is smaller than the first reference current, it indicates that the frost layer is about to enter a deterioration period according to the current temperature decrease trend, and the air conditioner is controlled to enter a defrosting mode if defrosting is needed in time to avoid the frost layer from entering the deterioration period.
The system current is detected once every first detection time, the change condition of the system current can be accurately reflected, and meanwhile, compared with continuous detection, the power consumption and the system processing burden can be saved.
According to the defrosting control method, the system current is detected at intervals to judge that the system current is in a descending trend, so that defrosting can be timely performed to prevent frost layers from entering a deterioration period, and the heating stability of the air conditioner is improved.
Preferably, the defrost control method further comprises the steps of: detecting a first initial system current when an air conditioner runs in a heating mode for a first working time after being started, and determining the first initial system current as the first reference current.
specifically, in this embodiment, as shown in fig. 3, the defrosting control method further includes: the air conditioner is started, the air conditioner operates for a first working time in the heating mode, for example, the air conditioner operates for 20 minutes, and after the air conditioner operates for 20 minutes, various parameters of the air conditioner start to be stable, and the operating condition of the air conditioner can be accurately reflected in real time.
According to the defrosting control method, the first reference current is determined again by running the first working time in the heating mode, so that the judgment on whether the frost layer has the trend of entering the deterioration period is more real-time and accurate.
Preferably, the defrost control method further comprises the steps of: when the system current detected for the m-th time is larger than the first reference current and/or the system current is in an ascending trend, waiting for the first detection time, detecting the system current for the m + 1-th time, comparing the system current detected for the m + 1-th time with the first reference current, and meanwhile judging the ascending trend of the system current; if the system current detected at the (m + 1) th time is larger than the first reference current and/or the system current is in an ascending trend, waiting for the first detection time, and continuously detecting the system current; and controlling the air conditioner to enter a defrosting mode until the system current is smaller than the first reference current and the system current is in a descending trend.
Specifically, in this embodiment, when the system current is greater than the first reference current and/or the system current is in an ascending trend, that is, the system current is less than the first reference current and the system current is in a descending trend, the system current and the first reference current are continuously compared, and the ascending trend of the system current is determined at the same time, until the system current is less than the first reference current and the system current is in a descending trend, the loop is exited, and the air conditioner is controlled to enter the defrosting mode. For example, when the system current is detected for the third time, the system current detected for the third time is larger than the first reference current and/or the system current is in an ascending trend, the first detection time is waited, the fourth detection is performed, if the system current detected for the fourth time is larger than the first reference current and/or the system current is in an ascending trend, the first detection time is waited, the system current is continuously detected, and the like, until the conditions that the system current is smaller than the first reference current and the system current is in a descending trend are met, the air conditioner is controlled to enter the defrosting mode.
According to the method, the periodic cycle is exited and the air conditioner enters the defrosting mode by judging in the periodic time when the conditions that the system current is smaller than the first reference current and the system current is in the descending trend are met, so that the air conditioner can be controlled to enter the defrosting mode in real time, and the heating stability of the air conditioner is improved.
According to the defrosting control method, the air conditioner can be controlled to enter the defrosting mode in real time through judgment in the period time, and the heating stability of the air conditioner is improved.
preferably, the defrost control method further comprises the steps of: detecting the system current when an air conditioner operates in a defrost mode; comparing the system current with a second reference current, and judging the rising and falling trend of the system current; and when the system current is greater than the second reference current and the system current is in an ascending trend, controlling the air conditioner to exit the defrosting mode.
Specifically, in this embodiment, with reference to fig. 2, the defrosting control method further includes detecting a system current when the air conditioner operates in the defrosting mode, comparing the system current with a second reference current, where the second reference current is an initial system current when the air conditioner operates in the defrosting mode for a second operating time, for example, 3 minutes, and is equal to a stable system current of the air conditioner in the defrosting mode, and by comparing the system current with the second reference current, a frost layer state corresponding to the current system current can be displayed, and when the system current is greater than the second reference current, it is described that a frost layer at this time has a tendency of falling off.
And meanwhile, the ascending and descending trend of the system current is also judged, and when the system current is greater than the second reference current and the system current is in the ascending trend, the frost layer can effectively fall off in time according to the current temperature ascending trend without operating in a defrosting mode, so that the air conditioner is controlled to exit the defrosting mode.
According to the defrosting control method, the defrosting and defrosting conditions are reflected through the change condition of the system current, the defrosting mode is accurately controlled, the air conditioner is effectively controlled to timely exit the defrosting mode, and the energy consumption of the air conditioner is reduced.
Preferably, the determining the rising and falling trend of the system current specifically includes: when the air conditioner operates in the defrosting mode for a second working time, detecting the system current every second detection time in a detection period, wherein the system current detected each time is marked as I1，I2，...，Ipand comparing the system current detected each time; when the system current is detected for the q time, if I is satisfiedq＞Iq-1＞Iq-2And q is more than or equal to 3 and less than or equal to p, judging that the system current is in an ascending trend.
Specifically, in this embodiment, after the air conditioner operates in the defrosting mode for the second operating time, the system current is detected every second detection time, for example, 1 minute, within the detection period, for example, 9 minutes, and is denoted as I1，I2，...，IpFor example, when the system current is detected for the third time, if I is satisfied3＞I2＞I1If the system current is greater than the second reference current, the frost layer can effectively fall off in time according to the current temperature rising trend, and the frost layer does not need to operate at the current temperature rising trendAnd controlling the air conditioner to exit the defrosting mode.
The system current is detected once every second detection time, the change condition of the system current can be accurately reflected, and meanwhile, compared with continuous and uninterrupted detection, the power consumption and the system processing burden can be saved.
The system current detection is limited in the detection period, and the air conditioner can be effectively prevented from being incapable of exiting under the defrosting mode for a long time, so that energy waste is caused.
According to the defrosting control method, the system current is detected at intervals to judge that the system current is in the rising trend, the air conditioner is effectively controlled to exit the defrosting mode in time, and the energy consumption of the air conditioner is reduced.
Preferably, the defrost control method further comprises the steps of: and detecting a second initial system current when the air conditioner operates in a defrosting mode for a second working time after being started, and determining the second initial system current as the second reference current.
specifically, in this embodiment, referring to fig. 3, the defrosting control method further includes that the air conditioner is turned on, the air conditioner is operated in the defrosting mode for a second working time, for example, 3 minutes, and since after the air conditioner is operated for 3 minutes, various parameters of the air conditioner start to be stable, and the operation condition of the air conditioner can be accurately reflected in real time, the initial system current measured at this time is determined as the second reference current, and the detected system current is compared with the second reference current to determine whether the frost layer has a tendency of falling, which is more accurate and can reflect the operation condition of the air conditioner in real time.
The defrosting control method provided by the embodiment of the invention can be used for more accurately reflecting the running state of the air conditioner in real time by running the second working time in the defrosting mode and then confirming the second reference current.
preferably, the defrost control method further comprises the steps of: when the system current detected for the q-th time is smaller than the second reference current and/or the system current is in a descending trend, waiting for the second detection time, detecting the system current for the q + 1-th time, comparing the system current detected for the q + 1-th time with the second reference current, and meanwhile judging the ascending and descending trend of the system current; if the system current detected for the (q + 1) th time is smaller than the second reference current and/or the system current is in a descending trend, waiting for the second detection time and continuously detecting the system current; and controlling the air conditioner to exit the defrosting mode until the system current is greater than the second reference current and the system current is in an ascending trend. For example, when the system current is detected for the third time, the system current detected for the third time is smaller than the second reference current and/or the system current is in a descending trend, the second detection time is waited, the fourth detection is performed, if the system current detected for the fourth time is smaller than the second reference current and/or the system current is in a descending trend, the second detection time is waited, the system current is continuously detected, and the like, until the system current is larger than the second reference current and the system current is in an ascending trend, the air conditioner is controlled to enter a defrosting mode.
specifically, in this embodiment, when the system current is smaller than the second reference current and/or the system current is in a downward trend, that is, the system current is not greater than the second reference current and the system current is in an upward trend, the system current and the second reference current are continuously compared, and the upward trend of the system current is determined at the same time, until the system current is greater than the second reference current and the system current is in an upward trend, the air conditioner is controlled to exit the defrosting mode.
And judging in the period time, when the system current is larger than the second reference current and the system current is in an ascending trend, exiting the period circulation, and exiting the defrosting mode by the air conditioner, so that the air conditioner can exit the defrosting mode in time, and the energy consumption of the air conditioner is reduced.
According to the defrosting control method, the air conditioner can exit the defrosting mode in time through judgment in the period time, and energy consumption of the air conditioner is reduced.
another embodiment of the present invention provides a defrosting control apparatus, as shown in fig. 4, including a detecting unit for detecting a system current when an air conditioner operates in a heating mode; the judging unit is used for comparing the system current with a first reference current and judging the rising and falling trend of the system current; and the control unit is used for controlling the air conditioner to enter a defrosting mode when the system current is smaller than the first reference current and the system current is in a descending trend.
Another embodiment of the present invention provides an air conditioner, including a computer-readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and executed to implement the defrosting control method according to any one of the above aspects.
Another embodiment of the present invention provides a computer-readable storage medium storing a computer program, which when read and executed by a processor, implements the defrost control method described in any one of the above.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (11)
1. A defrosting control method is characterized by comprising the following steps:
detecting a system current when the air conditioner operates in a heating mode;
Comparing the system current with a first reference current, and judging the rising and falling trend of the system current;
And when the system current is smaller than the first reference current and the system current is in a descending trend, controlling the air conditioner to enter a defrosting mode.
2. the defrosting control method according to claim 1, wherein the determining the trend of the system current includes:
When the air conditioner runs for a first working time in a heating mode, detecting the system current every other first detection time, and recording the system current detected each time as I1，I2，...，InAnd comparing the system current detected each time;
When the current of the system is detected for the m time, if I is satisfiedm＜Im-1＜Im-2And m is more than or equal to 3 and less than or equal to n, judging that the system current is in a descending trend.
3. The defrost control method of claim 1 further comprising the steps of:
Detecting a first initial system current when an air conditioner runs in a heating mode for a first working time after being started, and determining the first initial system current as the first reference current.
4. The defrost control method of claim 2 further comprising the steps of:
When the system current detected for the m-th time is larger than the first reference current and/or the system current is in an ascending trend, waiting for the first detection time, detecting the system current for the m + 1-th time, comparing the system current detected for the m + 1-th time with the first reference current, and meanwhile judging the ascending trend of the system current;
If the system current detected at the (m + 1) th time is larger than the first reference current and/or the system current is in an ascending trend, waiting for the first detection time, and continuously detecting the system current;
And controlling the air conditioner to enter a defrosting mode until the system current is smaller than the first reference current and the system current is in a descending trend.
5. The defrost control method of any of claims 1-4 further comprising the steps of:
Detecting the system current when an air conditioner operates in a defrost mode;
Comparing the system current with a second reference current, and judging the rising and falling trend of the system current;
And when the system current is greater than the second reference current and the system current is in an ascending trend, controlling the air conditioner to exit the defrosting mode.
6. The defrost control method according to claim 5, wherein the determining the trend of the system current comprises:
when the air conditioner operates in the defrosting mode for a second working time, detecting the system current every second detection time in a detection period, wherein the system current detected each time is marked as I1，I2，...，IpAnd comparing the system current detected each time;
when the system current is detected for the q time, if I is satisfiedq＞Iq-1＞Iq-2And q is more than or equal to 3 and less than or equal to p, judging that the system current is in an ascending trend.
7. The defrost control method of claim 5 further comprising the steps of:
And detecting a second initial system current when the air conditioner operates in a defrosting mode for a second working time after being started, and determining the second initial system current as the second reference current.
8. the defrost control method of claim 6 further comprising the steps of:
When the system current detected for the q-th time is smaller than the second reference current and/or the system current is in a descending trend, waiting for the second detection time, detecting the system current for the q + 1-th time, comparing the system current detected for the q + 1-th time with the second reference current, and meanwhile judging the ascending and descending trend of the system current;
If the system current detected for the (q + 1) th time is smaller than the second reference current and/or the system current is in a descending trend, waiting for the second detection time and continuously detecting the system current;
And controlling the air conditioner to exit the defrosting mode until the system current is greater than the second reference current and the system current is in an ascending trend.
9. A defrost control apparatus, comprising:
A detection unit for detecting a system current when the air conditioner operates in a heating mode;
The judging unit is used for comparing the system current with a first reference current and judging the rising and falling trend of the system current;
And the control unit is used for controlling the air conditioner to enter a defrosting mode when the system current is smaller than the first reference current and the system current is in a descending trend.
10. An air conditioner comprising a computer readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to implement the defrost control method according to any one of claims 1-8.
11. a computer-readable storage medium, characterized in that it stores a computer program which, when read and executed by a processor, implements the defrost control method according to any of claims 1-8.
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Citations (15)
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Application publication date: 20191213 |