CN111895598B - Control method and device for defrosting of air conditioner and air conditioner - Google Patents
Control method and device for defrosting of air conditioner and air conditioner Download PDFInfo
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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
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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Abstract
The application relates to a control method and device for defrosting of an air conditioner and the air conditioner. The control method comprises the following steps: under the condition that an air conditioner completes a defrosting process, obtaining an efficiency parameter of heat exchange efficiency of an associated outdoor unit of the air conditioner; correcting the defrosting interval duration from the current defrosting process to the next defrosting process based on the efficiency parameter of the heat exchange efficiency of the associated outdoor unit; and under the condition that the interval duration condition is determined to be met based on the corrected defrosting interval duration, controlling the air conditioner to carry out defrosting judgment whether to trigger the next defrosting process. The control method for defrosting the air conditioner can solve the problems that in the prior art, whether the defrosting function of the air conditioner is started or not is controlled by using a fixed defrosting time interval, so that the starting of the defrosting function of the air conditioner is limited, and the defrosting function cannot be triggered timely, and realizes more accurate control of the defrosting function of the air conditioner.
Description
Technical Field
The present disclosure relates to the field of air conditioner defrosting technologies, and for example, to an air conditioner and a defrosting control method thereof.
Background
Along with the improvement of living standard of people, air conditioning equipment has also gone into thousands of households, the use of domestic air conditioners and central air conditioners is more and more common, the requirement of users on the comfort level of the air conditioners is more and more high, the problems existing in the use process of the air conditioners are also gradually exposed, and one of the problems is the problem that an outdoor unit of the air conditioner is frosted and frozen when the air conditioner operates in severe cold climate. When the air conditioner operates in a low-temperature area or an area with large wind and snow, the condensed water flow on the outer surface of the condenser of the outdoor unit can drop on the base plate, the condenser and the base plate of the air conditioner can be frozen under the condition that the air conditioner operates for a long time, the condensed ice layer on the outdoor unit can obstruct the heat exchange between the internal refrigerant and the outdoor environment, the refrigerating efficiency of the air conditioner is reduced, in order to ensure the heating effect of the air conditioner, the air conditioner has to operate with increased power, and the extra consumption of electric energy and the use cost of a user are increased.
Therefore, some conventional air conditioners have a defrosting function to solve the problem of frost and ice formation of the outdoor unit of the air conditioner, for example, the outdoor unit is heated by a heating device provided in the outdoor unit, or the outdoor heat exchanger is defrosted and de-iced by a high-temperature refrigerant discharged from the compressor in a cooling mode. Here, before the air conditioner starts the defrosting function, the air conditioner generally determines whether a temperature condition in which frost is easily condensed has been reached by combining the temperature of the external coil detected by the outdoor sensor with the frost point temperature, and then determines whether the defrosting function is started.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: in the related art, in order to avoid the problem that the normal heating operation is affected by the continuous and frequent starting of the defrosting function of the air conditioner in the low-temperature environment, the defrosting function of the air conditioner is generally set to be not started within a fixed time after the defrosting is finished, for example, a defrosting time interval of 20 minutes and 30 minutes is set; the method has the disadvantages that factors influencing the frosting degree of the outdoor unit of the air conditioner not only include external environment factors, but also include the influence factors of the self state of the air conditioner, because the working state of each part of the air conditioner can also change after defrosting is finished every time, if the defrosting function is still controlled to be started by the fixed defrosting time interval, a larger error can exist between the working state and the actual frosting state of the air conditioner actually, for example, under the extremely severe cold weather condition, if the defrosting time interval is set for a longer time, the air conditioner is easy to condense more frost in the time period of the defrosting time interval, and at the moment, the air conditioner cannot start the defrosting function immediately due to the limitation of the defrosting time interval, so the normal use of the air conditioner can be influenced.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a control method for defrosting of an air conditioner.
In some embodiments, the control method comprises:
under the condition that an air conditioner completes a defrosting process, obtaining an efficiency parameter of heat exchange efficiency of an associated outdoor unit of the air conditioner;
correcting the defrosting interval duration from the current defrosting process to the next defrosting process based on the efficiency parameter of the heat exchange efficiency of the associated outdoor unit;
and under the condition that the interval duration condition is determined to be met based on the corrected defrosting interval duration, controlling the air conditioner to carry out defrosting judgment whether to trigger the next defrosting process.
The embodiment of the disclosure provides a control device for defrosting of an air conditioner.
In some embodiments, the control device comprises:
a first acquisition module configured to: under the condition that an air conditioner completes a defrosting process, obtaining an efficiency parameter of heat exchange efficiency of an associated outdoor unit of the air conditioner;
a duration correction module configured to: correcting the defrosting interval duration from the current defrosting process to the next defrosting process based on the efficiency parameter of the heat exchange efficiency of the associated outdoor unit;
a defrost determination module configured to: and under the condition that the interval duration condition is determined to be met based on the corrected defrosting interval duration, controlling the air conditioner to carry out defrosting judgment whether to trigger the next defrosting process.
The embodiment of the disclosure provides an air conditioner.
In some embodiments, the air conditioner includes the aforementioned control device.
The embodiment of the disclosure provides an electronic device.
In some embodiments, an electronic device includes:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor, which when executed by the at least one processor, cause the at least one processor to perform the aforementioned control method.
The disclosed embodiments provide a computer-readable storage medium.
In some embodiments, a computer-readable storage medium stores computer-executable instructions configured to perform the aforementioned control method.
Some technical solutions provided by the embodiments of the present disclosure can achieve the following technical effects:
the control method for defrosting the air conditioner can correct the defrosting interval from the current defrosting process to the next defrosting process by using the efficiency parameter of the heat exchange efficiency of the outdoor unit associated with the air conditioner, thereby solving the problems that the starting of the defrosting function of the air conditioner is limited and the defrosting function cannot be triggered in time because whether the defrosting function is started by controlling the air conditioner in a fixed defrosting time interval mode in the prior art, and realizing more accurate control of the defrosting function of the air conditioner.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic flow chart of a control method for defrosting an air conditioner according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of a control method for defrosting an air conditioner according to another embodiment of the present disclosure;
fig. 3 is a flowchart illustrating a control method for defrosting an air conditioner according to another embodiment of the present disclosure;
fig. 4 is a flowchart illustrating a control method for defrosting an air conditioner according to another embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a control device for defrosting an air conditioner according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an electronic device provided in an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
Fig. 1 is a schematic flow chart of a control method for defrosting an air conditioner according to an embodiment of the present disclosure.
As shown in fig. 1, an embodiment of the present disclosure provides a control method for defrosting an air conditioner, including:
s101, under the condition that the defrosting process executed by the air conditioner is completed, obtaining an efficiency parameter of heat exchange efficiency of an associated outdoor unit of the air conditioner;
in the embodiment of the present disclosure, the operation of correcting the defrosting interval duration is performed after the air conditioner has completed a certain defrosting process.
Here, the efficiency parameter related to the heat exchange efficiency of the outdoor unit includes the temperature of the outdoor coil of the outdoor unit and/or the working current of the external fan, where the embodiment of the present disclosure is applied to a heating working condition where a frosting problem may exist, and the most direct frosting object of the air conditioner is the outdoor unit, therefore, the temperature of the outdoor coil related to the heat exchange efficiency of the outdoor unit and/or the working current of the external fan respectively affect the temperature of the heat exchanger of the outdoor unit and the flow rate of the internal air flow, and therefore, the efficiency parameter of the air conditioner can affect the actual frosting condition of the air conditioner to a certain extent;
in some optional embodiments, the air conditioning parameters obtained in step S101 are the outdoor coil temperature of the outdoor unit and the operating current of the external fan obtained after the completed defrosting process has been performed.
In other alternative embodiments, the operation of correcting the frost point temperature in step S102 is performed after the air conditioner has completed a certain defrosting process, and the air conditioner parameters obtained in step S101 are the outdoor coil temperature of the outdoor unit and the operating current of the external fan at the stage before the completed defrosting process has been performed.
Optionally, in the air conditioner setting effective rate statistics module in the embodiment of the present disclosure, the efficiency statistics module may be configured to count efficiency parameters associated with heat exchange efficiency of the outdoor unit; and the efficiency parameters counted by the efficiency counting module of the air conditioner are all stored as historical operation data.
Here, the efficiency statistic module includes a temperature sensor disposed at a coil position of an outdoor unit of the air conditioner, and the temperature sensor can be used to detect a real-time temperature value of the coil of the outdoor unit; therefore, in step S101, the temperature value of the coil of the outdoor unit detected by the temperature sensor is obtained as the outdoor coil temperature;
after the air conditioner is started and operated, the working current of the outer fan of the air conditioner at different moments is simultaneously used as historical data to be stored, and therefore the working current of the outer fan before a defrosting process can be determined by calling the historical data of the working current.
S102, correcting the defrosting interval duration from the current defrosting process to the next defrosting process based on the efficiency parameter of the heat exchange efficiency of the associated outdoor unit;
in some optional embodiments, the modified defrosting interval duration is a preset duration value of one or more different duration values pre-stored in the air conditioner, such as 2 minutes, 7 minutes, and the like; in step S102, the air conditioner corrects the selected set time length value based on the efficiency parameter of the heat exchange efficiency of the associated outdoor unit;
in other alternative embodiments, the corrected defrosting interval duration is the defrosting interval duration between the defrosting process executed by the air conditioner and the previous defrosting process; therefore, in the embodiment of the present disclosure, before executing step S102, the steps of the control method of the embodiment of the present disclosure further include: and acquiring the defrosting interval duration between the defrosting process executed by the air conditioner and the previous defrosting process, and taking the defrosting interval duration as the defrosting interval duration to be corrected.
The air conditioner is provided with a timing module, and the timing module can be used for counting the interval duration between the completion time of the defrosting process executed by the air conditioner and the current time; in the above embodiment, the defrosting interval duration to be corrected is the interval duration between two adjacent defrosting processes, that is, the duration between the completion time of the previous defrosting process and the start time of the current defrosting process.
S103, under the condition that the interval duration condition is determined to be met based on the corrected defrosting interval duration, controlling the air conditioner to perform defrosting judgment whether to trigger the next defrosting process.
In the embodiment of the present disclosure, the interval duration condition includes that the interval duration between the completion time of the defrosting process that the air conditioner has executed and the current time is greater than or equal to the corrected defrosting interval duration. Therefore, if the air conditioner meets the interval duration condition, the air conditioner is controlled to perform defrosting judgment on whether the next defrosting process is triggered; and if the air conditioner does not meet the interval duration condition, controlling the air conditioner not to perform defrosting judgment on whether to trigger the next defrosting process.
The control method for defrosting the air conditioner can correct the defrosting interval from the current defrosting process to the next defrosting process by using the efficiency parameter of the heat exchange efficiency of the outdoor unit associated with the air conditioner, thereby solving the problems that the starting of the defrosting function of the air conditioner is limited and the defrosting function cannot be triggered in time because whether the defrosting function is started by controlling the air conditioner in a fixed defrosting time interval mode in the prior art, and realizing more accurate control of the defrosting function of the air conditioner.
In some optional embodiments, the specific implementation process of controlling the air conditioner to perform the defrosting judgment whether to trigger the next defrosting process in step S103 includes: under the condition that the air conditioner meets the preset defrosting condition, judging that the air conditioner triggers the next defrosting process; and under the condition that the air conditioner does not meet the preset defrosting condition, judging that the air conditioner does not trigger the next defrosting process.
Optionally, the preset defrosting condition includes that the temperature of the outdoor coil of the air conditioner is lower than the frost point temperature.
Here, to control the air conditioner to perform the defrosting judgment whether to trigger the next defrosting process, the steps of the embodiment of the present disclosure further include: acquiring the temperature of an outdoor coil of an air conditioner; comparing the temperature of the outdoor coil with the frost point temperature, and judging that the air conditioner triggers the next defrosting process under the condition that the temperature of the outdoor coil is less than the frost point temperature; and under the condition that the temperature of the outer coil is greater than or equal to the frost point temperature, judging that the air conditioner does not trigger the next defrosting process.
In the embodiment of the present disclosure, the outdoor unit of the air conditioner is further provided with a temperature sensor, and the temperature sensor can be used for detecting the real-time outdoor coil temperature of the coil of the outdoor unit; therefore, the step is to obtain the temperature of the outdoor coil detected by the temperature sensor;
illustratively, the set frost point temperature is-1 ℃; when the temperature of the outdoor coil acquired from the temperature sensor is-2 ℃, the temperature is lower than-1 ℃ below zero 2 ℃, and then the air conditioner is judged to trigger the next defrosting process; and when the temperature of the outdoor coil acquired from the temperature sensor is 3 ℃, the temperature of minus 1 ℃ is less than 3 ℃, and the next defrosting process triggered by the air conditioner is judged.
Here, the flow steps of the control method of the present application further include: acquiring the execution times of a defrosting process of the air conditioner after the starting; under the condition that the execution times of the defrosting process is equal to 0, controlling the air conditioner to judge whether to trigger the defrosting process of the next time based on the temperature of the outdoor coil pipe and the frost point temperature; in the case where the number of times of execution of the defrosting process is not equal to 0, the control processes of steps S101 to S103 are executed.
Counting the execution times of the defrosting process after the air conditioner is started, wherein the initial value of counting is 0; the counting is increased by 1 every time the air conditioner executes a defrosting process; therefore, after the air conditioner is started at the starting time and before the defrosting process is executed for the first time, the counting of the defrosting process by the air conditioner is 0, and at the moment, the air conditioner is controlled to perform defrosting judgment whether to trigger the next defrosting process or not based on the temperature of the outdoor coil pipe and the frost point temperature.
And when the air conditioner is shut down after the operation is finished, the air conditioner clears the count of the defrosting process.
Fig. 2 is a flowchart illustrating a control method for defrosting an air conditioner according to another embodiment of the present disclosure.
As shown in fig. 2, the embodiment of the present disclosure provides a control method for defrosting an air conditioner, where the flow defined by the control method is performed after the air conditioner has completed a certain defrosting flow; the method specifically comprises the following steps:
s201, acquiring the temperature of an outdoor coil of an outdoor unit and the working current of an external fan before the defrosting process is executed by an air conditioner;
after the air conditioner is started and operated, the sensor detects the real-time outdoor coil temperature and stores the real-time outdoor coil temperature as historical data, so that the outdoor coil temperature before the defrosting process can be determined by calling the historical data of the temperature detected by the sensor;
s202, matching to obtain a duration correction value corresponding to the parameter combination based on the parameter combination and a preset first incidence relation;
in an embodiment of the present disclosure, the first association relationship is configured to represent a correspondence between one or more parameter combinations and the duration correction value; the parameter combination at least comprises a temperature interval in which the outdoor coil temperature is positioned and a current interval in which the working current is positioned.
For example, table 1 shows an optional combination of parameters corresponding to the duration correction value.
| Parameter combination | Duration correction value (unit: minute) |
| tp < t1 and I < I1 | -4 |
| t1 is more than tp and less than or equal to t2, and I1 is more than I and less than I1 | 0 |
| t2 < tp and I > I2 | 4 |
TABLE 1
Wherein tp is the outdoor coil temperature of the outdoor unit, and i is the working current of the air conditioner. In step S202, the air conditioner may find and match the duration correction value of the corresponding parameter combination through the table.
The correlation is a value determined by calculation through experiments and the like before the air conditioner leaves a factory, and is prestored in a control device such as a computer board, a processor and the like of the air conditioner.
S203, correcting the defrosting interval time to be corrected based on the time correction value obtained by matching;
in the embodiment of the present disclosure, the sum of the defrosting interval duration to be corrected and the duration correction value is calculated in step S203, so as to obtain the corrected defrosting interval duration.
S204, acquiring the interval duration between the completion time of the defrosting process executed by the air conditioner and the current time;
s205, judging whether the corrected defrosting interval duration meets an interval duration condition, if so, executing a step S206; if not, returning to the step S204;
and S206, controlling the air conditioner to judge whether the next defrosting process is triggered.
In the embodiment of the present disclosure, the specific execution process of step S206 may refer to the foregoing embodiments, which are not described herein again.
The control method for defrosting of the air conditioner, which is disclosed in the embodiment of the disclosure, searches for a duration correction value matching a corresponding parameter combination through a preset incidence relation, and further corrects the duration of a defrosting interval according to the duration correction value, wherein the outdoor coil temperature and the working current of an external fan in the parameter combination can reflect the influence of the outdoor environment before defrosting on the running state of an outdoor unit in a combined manner, so that the outdoor coil temperature and the working current of the external fan are comprehensively considered, and the air conditioner can trigger a defrosting process adapting to the current working condition more accurately.
Fig. 3 is a flowchart illustrating a control method for defrosting an air conditioner according to another embodiment of the present disclosure.
As shown in fig. 3, the embodiment of the present disclosure provides a control method for defrosting an air conditioner, where the flow defined by the control method is performed after the air conditioner has completed a certain defrosting flow; the method specifically comprises the following steps:
s301, acquiring the temperature of an outdoor coil of an outdoor unit before the defrosting process is executed by the air conditioner;
after the air conditioner is started and operated, the sensor detects the real-time outdoor coil temperature and stores the real-time outdoor coil temperature as historical data, so that the outdoor coil temperature before the defrosting process can be determined by calling the historical data of the temperature detected by the sensor;
s302, matching to obtain a duration correction value corresponding to a temperature interval based on the temperature interval of the outdoor coil and a preset second incidence relation;
in an embodiment of the disclosure, the second correlation is configured to characterize a correspondence of one or more temperature intervals to the duration correction value.
For example, table 2 shows a correspondence between an optional temperature interval and a duration correction value.
| Temperature interval | Duration correction value (unit: minute) |
| tp＜t1 | -2 |
| t1＜tp≤t2 | 0 |
| t2＜tp | 2 |
TABLE 2
And tp is the temperature of an outdoor coil of the outdoor unit. In step S302, the air conditioner may find and match the duration correction value of the corresponding temperature interval through the table.
The correlation is a value determined by calculation through experiments and the like before the air conditioner leaves a factory, and is prestored in a control device such as a computer board, a processor and the like of the air conditioner.
S303, correcting the defrosting interval time to be corrected based on the time correction value obtained by matching;
in the embodiment of the present disclosure, the sum of the defrosting interval duration to be corrected and the duration correction value is calculated in step S303, so as to obtain the corrected defrosting interval duration.
S304, acquiring the interval duration between the completion time of the defrosting process executed by the air conditioner and the current time;
s305, judging whether the corrected defrosting interval duration meets an interval duration condition, if so, executing a step S306; if not, returning to the step S304;
and S306, controlling the air conditioner to judge whether the next defrosting process is triggered.
In the embodiment of the present disclosure, the specific execution process of step S306 may refer to the foregoing embodiments, which are not described herein again.
The control method for defrosting of the air conditioner, which is disclosed in the embodiment of the disclosure, searches and matches the duration correction value corresponding to the temperature of the outdoor coil according to the preset incidence relation, and then corrects the duration of the defrosting interval according to the duration correction value, wherein the temperature of the outdoor coil can reflect the influence of the outdoor environment on the running state of the outdoor unit before defrosting, so that the temperature of the outdoor coil is applied to the correction of the duration of the defrosting interval, and the air conditioner can trigger the defrosting process adaptive to the current working condition more accurately.
Fig. 4 is a flowchart illustrating a control method for defrosting an air conditioner according to another embodiment of the present disclosure.
As shown in fig. 4, the embodiment of the present disclosure provides a control method for defrosting an air conditioner, where the flow defined by the control method is performed after the air conditioner has completed a certain defrosting flow; the method specifically comprises the following steps:
s401, obtaining the working current of an outer fan before the air conditioner executes a defrosting process;
s402, matching to obtain a duration correction value corresponding to the current interval based on the current interval where the working current is located and a preset third correlation;
in an embodiment of the disclosure, the third correlation is configured to characterize a correspondence of one or more current intervals to a temperature correction value.
For example, table 3 shows the correspondence between an optional current interval and the duration correction value.
TABLE 3
Wherein i is the working current of the air conditioner. In step S402, the air conditioner may find and match the duration correction value of the corresponding current interval through the table.
The correlation is a value determined by calculation through experiments and the like before the air conditioner leaves a factory, and is prestored in a control device such as a computer board, a processor and the like of the air conditioner.
S403, correcting the defrosting interval time to be corrected based on the matched time correction value;
in the embodiment of the present disclosure, the sum of the defrosting interval duration to be corrected and the duration correction value is calculated in step S403, so as to obtain the corrected defrosting interval duration.
S404, acquiring the interval duration between the completion time of the defrosting process executed by the air conditioner and the current time;
s405, judging whether the corrected defrosting interval duration meets an interval duration condition, if so, executing a step S406; if not, returning to the step S404;
and S406, controlling the air conditioner to judge whether the next defrosting process is triggered.
In the embodiment of the present disclosure, the specific execution process of step S406 may refer to the foregoing embodiments, which are not described herein again.
The control method for defrosting of the air conditioner, which is disclosed in the embodiment of the disclosure, searches and matches a duration correction value corresponding to the working current of the external fan through a preset incidence relation, and further corrects the duration of a defrosting interval according to the duration correction value, wherein the working current of the external fan can reflect the influence of an outdoor environment on the running state of an outdoor unit in a combined manner, so that the working current of the external fan is applied to the correction of the duration of the defrosting interval, and the air conditioner can trigger a defrosting process adaptive to the current working condition more accurately.
Fig. 5 is a schematic structural diagram of a control device for defrosting of an air conditioner according to an embodiment of the present disclosure.
As shown in fig. 5, the embodiment of the present disclosure provides a control device 5 for defrosting an air conditioner, which is applied to an air conditioner and can control the air conditioner to execute the control flow shown in the foregoing embodiment. The control device 5 includes:
a first obtaining module 51 configured to: under the condition that the defrosting process executed by the air conditioner is completed, obtaining the efficiency parameter of the heat exchange efficiency of the associated outdoor unit of the air conditioner;
a duration correction module 52 configured to: based on the efficiency parameter of the heat exchange efficiency of the associated outdoor unit, the defrosting interval duration from the current defrosting process to the next defrosting process is corrected;
a defrost determination module 53 configured to: and under the condition that the interval duration condition is determined to be met based on the corrected defrosting interval duration, controlling the air conditioner to carry out defrosting judgment whether to trigger the next defrosting process.
In some optional embodiments, the first obtaining module 51 is configured to:
and acquiring the temperature of an outdoor coil of the outdoor unit and/or the working current of the external fan before the defrosting process is executed by the air conditioner.
In some optional embodiments, the control apparatus 5 further comprises a second obtaining module 54 configured to:
and acquiring the defrosting interval duration between the defrosting process executed by the air conditioner and the previous defrosting process, and taking the defrosting interval duration as the defrosting interval duration to be corrected.
In some optional embodiments, the duration correction module 52 is configured to:
matching to obtain a duration correction value corresponding to the parameter combination based on the parameter combination and a preset first incidence relation; the first incidence relation is configured to represent the corresponding relation between one or more parameter combinations and the duration correction value; the parameter combination at least comprises a temperature interval in which the temperature of the outdoor coil is positioned and a current interval in which the working current is positioned;
and correcting the defrosting interval time to be corrected based on the matched time correction value.
In some optional embodiments, the duration correction module 52 is configured to:
matching to obtain a time length correction value corresponding to the temperature interval based on the temperature interval of the outdoor coil and a preset second incidence relation; the second incidence relation is configured to represent the corresponding relation between one or more temperature intervals and the duration correction value;
and correcting the defrosting interval time to be corrected based on the matched time correction value.
In some optional embodiments, the duration correction module 52 is configured to:
matching to obtain a duration correction value corresponding to the current interval based on the current interval in which the working current is located and a preset third correlation; the third correlation is configured to represent the corresponding relation between one or more current intervals and the duration correction value;
and correcting the defrosting interval time to be corrected based on the matched time correction value.
In some optional embodiments, the duration correction module 52 is configured to:
and calculating the sum of the defrosting interval duration to be corrected and the duration correction value to obtain the corrected defrosting interval duration.
In some optional embodiments, the defrost determination module 53 is configured to:
under the condition that the air conditioner meets the preset defrosting condition, judging that the air conditioner triggers the next defrosting process;
and under the condition that the air conditioner does not meet the preset defrosting condition, judging that the air conditioner does not trigger the next defrosting process.
The specific execution manner of the control flow executed by the control device to control the air conditioner in the present application may refer to the corresponding part of the foregoing embodiments of the control method, and is not described herein again.
The embodiment of the disclosure also provides an air conditioner, which comprises an air conditioner main body and the control device provided in the previous embodiment.
The embodiment of the present disclosure also provides a computer-readable storage medium storing computer-executable instructions configured to execute the control method for defrosting an air conditioner provided in the above embodiment.
Embodiments of the present disclosure also provide a computer program product including a computer program stored on a computer-readable storage medium, the computer program including program instructions that, when executed by a computer, cause the computer to execute the control method of defrosting an air conditioner provided in the above-described embodiments.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
An embodiment of the present disclosure further provides an electronic device, a structure of which is shown in fig. 6, where the electronic device includes:
at least one processor (processor)600, such as processor 600 in FIG. 5; and a memory (memory)601, and may further include a Communication Interface 602 and a bus 603. The processor 600, the communication interface 602, and the memory 601 may communicate with each other via a bus 603. The communication interface 602 may be used for information transfer. The processor 600 may call logic instructions in the memory 601 to execute the control method of air conditioner defrosting provided in the above-described embodiment.
In addition, the logic instructions in the memory 601 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 601 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 600 executes the functional application and data processing by running the software program, instructions and modules stored in the memory 601, so as to implement the control method for defrosting the air conditioner in the above-described method embodiment.
The memory 601 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 601 may include a high speed random access memory, and may also include a non-volatile memory.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the disclosed embodiments includes the full ambit of the claims, as well as all available equivalents of the claims. As used in this application, although the terms "first," "second," etc. may be used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first and second elements are both elements, but may not be the same element. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (8)
1. A control method for defrosting of an air conditioner is characterized by comprising the following steps:
under the condition that an air conditioner completes a defrosting process, obtaining efficiency parameters of heat exchange efficiency of an associated outdoor unit of the air conditioner, wherein the efficiency parameters comprise: acquiring the working current of an outer fan before the air conditioner executes the defrosting process;
based on the efficiency parameter of the heat exchange efficiency of the associated outdoor unit, the defrosting interval duration from the current defrosting process to the next defrosting process is corrected, and the method comprises the following steps: matching to obtain a duration correction value corresponding to the current interval based on the current interval in which the working current is located and a preset third correlation; the third correlation is configured to represent a corresponding relationship between one or more current intervals and a duration correction value, when the working current is a first current interval, the duration correction value is a negative value, when the working current is a second current interval, the duration correction value is 0, when the working current is a third current interval, the duration correction value is a positive value, and the second current interval is larger than the first current interval and smaller than the third current interval; correcting the defrosting interval time to be corrected based on the time correction value obtained by matching;
controlling an air conditioner to perform defrosting judgment on whether a next defrosting process is triggered or not under the condition that the defrosting interval duration is determined to meet an interval duration condition based on the corrected defrosting interval duration, wherein the interval duration condition comprises that the interval duration between the completion time of the defrosting process executed by the air conditioner and the current time is greater than or equal to the corrected defrosting interval duration; wherein, the defrosting judgment of controlling the air conditioner to trigger the next defrosting process comprises the following steps: under the condition that the air conditioner meets a preset defrosting condition, judging that the next defrosting process is triggered by the air conditioner; under the condition that the air conditioner does not meet the preset defrosting condition, judging that the air conditioner does not trigger the next defrosting process; the preset defrosting condition comprises that the temperature of an outdoor coil of the air conditioner is less than the frost point temperature.
2. The method of claim 1, wherein the obtaining of the efficiency parameter of the heat exchange efficiency of the associated outdoor unit of the air conditioner further comprises:
and acquiring the temperature of an outdoor coil of the outdoor unit before the defrosting process is executed by the air conditioner.
3. The control method according to claim 2, wherein before the defrosting interval duration from the current defrosting process to the next defrosting process is corrected based on the efficiency parameter of the heat exchange efficiency of the associated outdoor unit, the control method further comprises:
and acquiring the defrosting interval duration between the defrosting process executed by the air conditioner and the previous defrosting process, and taking the defrosting interval duration as the defrosting interval duration to be corrected.
4. The control method according to claim 3, wherein the correcting a defrosting interval duration from the current defrosting process to a next defrosting process based on the efficiency parameter associated with the heat exchange efficiency of the outdoor unit includes:
matching to obtain a duration correction value corresponding to the parameter combination based on the parameter combination and a preset first incidence relation; the first incidence relation is configured to represent the corresponding relation between one or more parameter combinations and duration correction values; the parameter combination at least comprises a temperature interval in which the outdoor coil temperature is positioned and a current interval in which the working current is positioned;
and correcting the defrosting interval time to be corrected based on the time correction value obtained by matching.
5. The control method according to claim 3, wherein the correcting a defrosting interval duration from the current defrosting process to a next defrosting process based on the efficiency parameter associated with the heat exchange efficiency of the outdoor unit includes:
matching to obtain a duration correction value corresponding to the temperature interval based on the temperature interval of the outdoor coil and a preset second incidence relation; the second incidence relation is configured to represent the corresponding relation between one or more temperature intervals and the duration correction value;
and correcting the defrosting interval time to be corrected based on the time correction value obtained by matching.
6. The control method according to claim 4 or 5, wherein the correcting the defrosting interval duration based on the duration correction value obtained by matching includes:
and calculating the sum of the defrosting interval duration to be corrected and the duration correction value to obtain the corrected defrosting interval duration.
7. A control device for defrosting of an air conditioner, comprising:
a first acquisition module configured to: under the condition that an air conditioner completes a defrosting process, obtaining efficiency parameters of heat exchange efficiency of an associated outdoor unit of the air conditioner, wherein the efficiency parameters comprise: acquiring the working current of an outer fan before the air conditioner executes the defrosting process;
a duration correction module configured to: based on the efficiency parameter of the heat exchange efficiency of the associated outdoor unit, the defrosting interval duration from the current defrosting process to the next defrosting process is corrected, and the method comprises the following steps: matching to obtain a duration correction value corresponding to the current interval based on the current interval in which the working current is located and a preset third correlation; the third correlation is configured to represent a corresponding relationship between one or more current intervals and a duration correction value, when the working current is a first current interval, the duration correction value is a negative value, when the working current is a second current interval, the duration correction value is 0, when the working current is a third current interval, the duration correction value is a positive value, and the second current interval is larger than the first current interval and smaller than the third current interval; correcting the defrosting interval time to be corrected based on the time correction value obtained by matching;
a defrost determination module configured to: controlling an air conditioner to perform defrosting judgment on whether a next defrosting process is triggered or not under the condition that the defrosting interval duration is determined to meet an interval duration condition based on the corrected defrosting interval duration, wherein the interval duration condition comprises that the interval duration between the completion time of the defrosting process executed by the air conditioner and the current time is greater than or equal to the corrected defrosting interval duration; wherein, the defrosting judgment of controlling the air conditioner to trigger the next defrosting process comprises the following steps: under the condition that the air conditioner meets a preset defrosting condition, judging that the next defrosting process is triggered by the air conditioner; under the condition that the air conditioner does not meet the preset defrosting condition, judging that the air conditioner does not trigger the next defrosting process; the preset defrosting condition comprises that the temperature of an outdoor coil of the air conditioner is less than the frost point temperature.
8. An air conditioner characterized by comprising the control device according to claim 7.
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