CN111895597B - 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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- CN111895597B CN111895597B CN201910371832.7A CN201910371832A CN111895597B CN 111895597 B CN111895597 B CN 111895597B CN 201910371832 A CN201910371832 A CN 201910371832A CN 111895597 B CN111895597 B CN 111895597B
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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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, acquiring a first time parameter related to a current frosting state and a second time parameter related to a historical frosting state of the air conditioner; correcting the frost point temperature based on the first time parameter associated with the current frosting state and the second time parameter associated with the historical frosting state; and controlling the air conditioner to perform defrosting judgment on whether to trigger the next defrosting process or not based on the corrected frost point temperature. The control method for defrosting of the air conditioner, provided by the embodiment of the disclosure, can reduce the problems that the error between the frost point temperature and the actual working condition is large and the defrosting process is not accurately triggered due to the fact that the dew point temperature is determined by utilizing the dew point temperature and the working state of the components of the air conditioner changes in the prior art, and realizes more accurate control over 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 walked 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 conditioner is also more and more high, the problems existing in the use process of the air conditioner 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, condensed water on the outer surface of a condenser of the outdoor unit can drip on the base plate, the condenser and the base plate of the air conditioner can be caused to freeze under the condition of long-time operation of the air conditioner, a condensed ice layer on the outdoor unit can block heat exchange between an internal refrigerant and an outdoor environment, the refrigerating efficiency of the air conditioner is reduced, the air conditioner has to operate with increased power in order to ensure the heating effect of the air conditioner, and extra consumption of electric energy and improvement of the use cost of a user are also caused.
Therefore, some conventional air conditioners have a defrosting function to solve the problem of frost and ice formation of an outdoor unit of the air conditioner, for example, heating the outdoor unit by a heating device provided in the outdoor unit, or defrosting and melting ice in an outdoor heat exchanger by a high-temperature refrigerant discharged from a compressor. 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: the air conditioner generally uses the dew point temperature obtained by calculating the external environment temperature parameter as the frost point temperature, and because the outdoor unit is not provided with a humidity sensor for detecting the humidity parameter which can be used for accurately calculating the dew point temperature and the working state of each part of the air conditioner is changed after defrosting is finished each time, the error between the frost point temperature determined by the method and the actual working condition is large, and the requirement that the defrosting function is triggered by accurate control of the air conditioner cannot be met.
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, acquiring a first time parameter related to a current frosting state and a second time parameter related to a historical frosting state of the air conditioner;
correcting the frost point temperature based on the first time parameter associated with the current frosting state and the second time parameter associated with the historical frosting state;
and controlling the air conditioner to carry out defrosting judgment whether to trigger the next defrosting process or not based on the corrected frost point temperature.
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, acquiring a first time parameter related to a current frosting state and a second time parameter related to a historical frosting state of the air conditioner;
a temperature modification module configured to: correcting the frost point temperature based on the first time parameter associated with the current frosting state and the second time parameter associated with the historical frosting state;
a defrost determination module configured to: and controlling the air conditioner to perform defrosting judgment on whether to trigger the next defrosting process or not based on the corrected frost point temperature.
The embodiment of the disclosure provides an air conditioner.
In some embodiments, the air conditioner comprises 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 first and the second end of the pipe are connected with each other,
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:
according to the control method for defrosting of the air conditioner, provided by the embodiment of the disclosure, the frost point temperature can be corrected by utilizing the first time parameter related to the current frosting state and the second time parameter related to the historical frosting state of the defrosting process executed by the air conditioner, so that the problems that the error between the frost point temperature and the actual working condition is larger and the triggering of the defrosting process is inaccurate due to the fact that the frost point temperature is determined by utilizing the dew point temperature and the working state of the components of the air conditioner is changed in the prior art can be solved, and the defrosting function of the air conditioner can be controlled more accurately.
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 an air conditioner completes a defrosting process, acquiring a first time parameter related to a current frosting state and a second time parameter related to a historical frosting state of the air conditioner;
in the disclosed embodiment, the operation of correcting the frost point temperature is performed after the air conditioner has completed a certain defrosting process.
The first time parameter related to the current frosting state is a time parameter acquired by the air conditioner after a defrosting process is finished, represents the time change condition of the air conditioner after the defrosting process is finished, and is related to the frosting condition of the air conditioner after the defrosting process is finished; the second time parameter associated with the historical frosting state is a time parameter acquired in the whole operation process of the air conditioner, represents the time change condition of the air conditioner in the whole operation process and is associated with the frosting condition in the whole operation process of the air conditioner; here, the disclosed embodiments are applied to heating conditions where frosting may be a problem. In the air conditioner in the embodiment of the present disclosure, after the air conditioner completes a certain defrosting process, the frost point temperature is corrected by the first time parameter and the second time parameter, and the corrected frost point temperature is used for defrosting judgment of a next defrosting process to be executed.
Optionally, the air conditioner in the embodiment of the present disclosure is provided with a timing module, and the timing module may be configured to count a first time parameter associated with a current frosting state and a second time parameter associated with a historical frosting state; and the two time parameters counted by the timing module of the air conditioner are both taken as historical operation data to be stored.
S102, correcting the frost point temperature based on a first time parameter related to the current frost formation state and a second time parameter related to the historical frost formation state;
in some optional embodiments, the corrected frost point temperature is a preset temperature value of one or more different temperature values pre-stored in the air conditioner, such as 0 ℃, 2 ℃, and the like; in the step S102, the air conditioner corrects the selected set temperature value based on the first time parameter related to the current frosting state and the second time parameter related to the historical frosting state;
in other alternative embodiments, the frost point temperature value is a value calculated by a preset parameter. Here, the air conditioner takes the dew point temperature of the current working condition as the frost point temperature to be corrected; the dew point temperature can be calculated by the following dew point calculation formula:
Tes＝A*Tai+B；
wherein Tes is dew point temperature, A is a calculation coefficient of outdoor environment temperature, Tai is the outdoor environment temperature, and B is a calculation constant;
the dew point temperature is calculated by the above dew point calculation formula, and then the dew point temperature can be used as the frost point temperature to be corrected in step S102.
Therefore, in the embodiment of the present disclosure, before executing step S102, the flow steps of the control method further include: acquiring the outdoor environment temperature of the air conditioner; and calculating according to a dew point calculation formula to obtain a dew point temperature, and taking the dew point temperature as the frost point temperature to be corrected.
Here, the air conditioner is further provided with a temperature sensor located in the outdoor unit, and the temperature sensor can be used for detecting real-time outdoor environment temperature of the outdoor environment, so that the frost point temperature to be corrected can be determined according to the above flow steps by acquiring the outdoor environment parameters detected by the temperature sensor.
And S103, controlling the air conditioner to perform defrosting judgment on whether to trigger the next defrosting process or not based on the corrected frost point temperature.
Optionally, in step S103, the detected outdoor environment temperature or outdoor coil temperature may be compared with the corrected frost point temperature, and when the outdoor environment temperature or outdoor coil temperature is less than the corrected frost point temperature, it is determined that the air conditioner triggers the next defrosting process; otherwise, the air conditioner is judged not to trigger the next defrosting process.
According to the control method for defrosting of the air conditioner, provided by the embodiment of the disclosure, the frost point temperature can be corrected by utilizing the first time parameter related to the current frosting state and the second time parameter related to the historical frosting state of the air conditioner for executing the defrosting process, so that the problems that the error between the frost point temperature and the actual working condition is larger and the triggering of the defrosting process is inaccurate due to the fact that the dew point temperature is determined and the working state of the air conditioner part is changed in the prior art can be solved, and the defrosting function of the air conditioner can be controlled more accurately.
In some optional embodiments, the specific execution process of step S103 includes: acquiring the temperature of an outdoor coil of an air conditioner; comparing the temperature of the outdoor coil with the corrected 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 corrected frost point temperature; and under the condition that the temperature of the outer coil is greater than or equal to the corrected 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 corrected 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.
When the air conditioner is judged not to trigger the next defrosting process, the process is ended; alternatively, the air conditioner may re-perform the flow of the frost point temperature correction and the defrosting determination of steps S101 to S103 after a certain time.
In the above embodiment of the present disclosure, the specific defrosting manner of the defrosting process triggered by the air conditioner does not relate to the innovative point of the present application, and therefore is not described in detail.
In some optional embodiments, after the air conditioner is started at this time and the defrosting process is not executed yet, the air conditioner does not correct the frost point temperature, and the frost point temperature on which the defrosting determination is performed before the air conditioner executes the first defrosting process is a temperature value that is not corrected, such as the dew point temperature calculated by the above parameter calculation formula.
Therefore, 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; and controlling the air conditioner to judge whether to trigger the defrosting of the next defrosting process or not based on the dew point temperature when the execution frequency of the defrosting process is zero.
After the air conditioner is started, counting the execution times of the defrosting process, wherein the initial value of the 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 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 time, the air conditioner is controlled to perform defrosting judgment on whether the next defrosting process is triggered or not based on the dew 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 accumulated running time of the air conditioner during the starting-up;
in this embodiment, the timing is started after the air conditioner is started up at this time, and the accumulated running time is the time between the current time and the time when the air conditioner is started up;
for example, if the time when the air conditioner is turned on this time is 11:00 and the time when the air conditioner executes step S201 is 13:10, the cumulative operating time of the air conditioner that is turned on this time is 2 hours and 10 minutes.
S202, acquiring defrosting duration of a defrosting process executed by an air conditioner;
s203, calculating the ratio of the defrosting time length to the accumulated running time length;
here, the defrosting time length of the defrosting process that the air conditioner has completed is set to be T1, the accumulated operation time length of the current starting operation of the air conditioner is T, and the ratio of the defrosting time length to the accumulated operation time length calculated in step S203 is T/T;
s204, matching to obtain a temperature correction value corresponding to a ratio interval based on the ratio interval of the defrosting time and the accumulated running time and a preset incidence relation;
in the disclosed embodiment, the correlation is configured to characterize a correspondence of one or more ratio intervals and temperature correction values; in the preset correlation relationship, the ratio interval and the temperature correction value form a positive correlation relationship.
For example, table 1 shows an optional ratio interval versus temperature correction.
| Interval of ratio | Temperature correction value (Unit:. degree. C.) |
| t/T＜d1 | -1 |
| d1≤t/T＜d2 | 0 |
| d2≤t/T＜d3 | 1 |
| d3＜t/T | 3 |
TABLE 1
Therefore, in step S204, the air conditioner may find and match the temperature correction value corresponding to the ratio 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.
S205, correcting the frost temperature based on the temperature correction value obtained by matching;
in the embodiment of the present disclosure, the sum of the frost point temperature and the temperature correction value is calculated in step S205 to obtain the corrected frost point temperature.
And S206, controlling the air conditioner to perform defrosting judgment whether to trigger the next defrosting process or not based on the corrected frost point temperature.
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 temperature correction value matching a corresponding ratio interval through a preset incidence relation, and further corrects the frost point temperature according to the temperature correction value, wherein the ratio interval can reflect a time proportion occupied by a defrosting process after the air conditioner is started and operated at this time, and under the condition that the occupied time proportion is large, the frosting degree of the air conditioner is relatively serious, so that the corrected frost point temperature is relatively high, and the next defrosting process can be triggered more easily, and thus, the air conditioner can trigger the defrosting process adaptive 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, responding to the completion of the defrosting process executed by the air conditioner, and acquiring a first defrosting time length of the defrosting process executed by the air conditioner at this time;
s302, acquiring the defrosting duration of the previous defrosting process of the defrosting process executed by the air conditioner at this time;
s303, calculating the ratio of the first defrosting time length to the second defrosting time length;
here, the first defrosting time period acquired in step S301 of the air conditioner is set to t1, the second defrosting time period acquired in step S302 is set to t2, and the ratio of the first defrosting time period to the second defrosting time period calculated in step S303 is t1/t 2;
s304, matching to obtain a temperature correction value corresponding to a ratio interval based on the ratio interval of the ratio of the first defrosting time to the second defrosting time and a preset incidence relation;
in the disclosed embodiment, the correlation is configured to characterize a correspondence of one or more ratio intervals and temperature correction values; in the preset correlation relationship, the ratio interval and the temperature correction value form a positive correlation relationship.
For example, table 2 shows an optional ratio interval versus temperature correction.
| Interval of ratio | Temperature correction value (Unit:. degree. C.) |
| (t1/t2)＜d1 | -1 |
| d1≤(t1/t2)＜d2 | 0 |
| d2≤(t1/t2)＜d3 | 1 |
| d3＜(t1/t2) | 3 |
TABLE 2
Therefore, in step S304, the air conditioner may find and match the temperature correction value corresponding to the ratio interval through the table.
The correlation is a numerical value calculated and determined by means of experiments and the like before the air conditioner leaves a factory, and is prestored in a control device of the air conditioner, such as a computer board, a processor and the like.
S305, correcting the frost point temperature based on the temperature correction value obtained by matching;
in the embodiment of the present disclosure, the sum of the frost point temperature and the temperature correction value is calculated in step S305, and the corrected frost point temperature is obtained.
And S306, controlling the air conditioner to perform defrosting judgment on whether to trigger the next defrosting process or not based on the corrected frost point temperature.
In the embodiment of the present disclosure, the specific execution process of step S306 may refer to the foregoing embodiments, and details are not described herein.
The control method for defrosting of the air conditioner, which is disclosed in the embodiment of the disclosure, searches for a temperature correction value matching a corresponding ratio interval through a preset incidence relation, and further corrects the frost point temperature according to the temperature correction value, wherein the ratio interval can reflect the time length change of two defrosting processes which have been executed by the air conditioner recently, and under the condition of a larger ratio, the frosting degree of the air conditioner is aggravated, so that the corrected frost point temperature is higher, and the next defrosting process can be triggered more easily, and thus, the air conditioner triggers 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, responding to the completion of the defrosting process executed by the air conditioner, and acquiring a first accumulated operation time of a heating mode after the air conditioner executes the defrosting process;
s402, acquiring a second accumulated running time of the heating mode before the air conditioner executes the defrosting process;
s403, calculating the ratio of the first accumulated running time length to the second accumulated running time length;
here, the first accumulated operation defrosting time period obtained in step S401 of the air conditioner is set to T1, the second accumulated operation time period obtained in step S402 is set to T2, and the ratio of the first accumulated operation time period to the second accumulated operation time period calculated in step S403 is T1/T2;
s404, matching to obtain a temperature correction value corresponding to a ratio interval based on the ratio interval of the first accumulated running time and the second accumulated running time and a preset incidence relation;
in the disclosed embodiment, the correlation is configured to characterize a correspondence of one or more ratio intervals to temperature correction values; in the preset correlation relationship, the ratio interval and the temperature correction value form a positive correlation relationship.
For example, table 3 shows an optional ratio interval versus temperature correction.
| Interval of ratio | Temperature correction value (Unit:. degree. C.) |
| (T1/T2)＜d1 | -1 |
| d1≤(T1/T2)＜d2 | 0 |
| d2≤(T1/T2)＜d3 | 1 |
| d3＜(T1/T2) | 3 |
TABLE 3
Therefore, in step S404, the air conditioner may find and match the temperature correction value corresponding to the ratio 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.
S405, correcting the frost point temperature based on the temperature correction value obtained through matching;
in the embodiment of the present disclosure, the sum of the frost point temperature and the temperature correction value is calculated in step S405 to obtain the corrected frost point temperature.
And S406, controlling the air conditioner to perform defrosting judgment on whether to trigger the next defrosting process or not based on the corrected frost point temperature.
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 for a temperature correction value matching a corresponding ratio interval through a preset incidence relation, and further corrects the frost point temperature according to the temperature correction value, wherein the ratio interval can reflect the running time length of a heating mode before and after a defrosting process which has been executed by the air conditioner recently, and the frost formation degree is aggravated due to heat absorption from an outdoor environment during the heating operation of the air conditioner, so that under the condition of a larger ratio, the heating running time after the defrosting process of the air conditioner is longer than the time of a heating stage before, the frost formation degree is aggravated, and the corrected frost point temperature is higher, so that the next defrosting process can be triggered more easily, and thus the air conditioner can trigger the defrosting process which is 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, acquiring a first time parameter related to the current frosting state of the air conditioner and a second time parameter related to the historical frosting state of the air conditioner;
a temperature modification module 52 configured to: correcting the frost point temperature based on a first time parameter associated with the current frosting state and a second time parameter associated with the historical frosting state;
a defrost determination module 53 configured to: and controlling the air conditioner to perform defrosting judgment whether to trigger the next defrosting process or not based on the corrected frost point temperature.
In some optional embodiments, the first obtaining module 51 is configured to:
acquiring the defrosting time of the defrosting process executed by the air conditioner and the accumulated running time of the air conditioner during the starting; alternatively, the first and second electrodes may be,
acquiring a first defrosting time length of a defrosting process executed by an air conditioner, and acquiring a second defrosting time length of a previous defrosting process of the defrosting process executed by the air conditioner; alternatively, the first and second electrodes may be,
the method comprises the steps of obtaining a first accumulated operation time length of an air conditioner running heating mode after a defrosting process is executed, and obtaining a second accumulated operation time length of the air conditioner running heating mode before the defrosting process is executed.
In some optional embodiments, the temperature modification module 52 is configured to:
matching to obtain a temperature correction value corresponding to a ratio interval based on the ratio interval of the first time parameter and the second time parameter and a preset incidence relation; wherein the incidence relation is configured to represent the corresponding relation between one or more than one ratio interval and the temperature correction value;
and correcting the frost point temperature based on the temperature correction value obtained by matching.
In some optional embodiments, in the preset correlation, the ratio interval is in positive correlation with the temperature correction value.
In some optional embodiments, the temperature modification module 52 is configured to:
and calculating the sum of the frost point temperature and the temperature correction value to obtain the corrected frost point temperature.
In some optional embodiments, the control apparatus 5 further comprises a second obtaining module 54 configured to: acquiring the temperature of an outdoor coil of an air conditioner;
the defrosting determination module 53 is configured to:
under the condition that the temperature of the outdoor coil pipe is lower than the corrected frost point temperature, judging that the air conditioner triggers the next defrosting process;
and under the condition that the temperature of the outdoor coil pipe is greater than or equal to the corrected frost point temperature, judging that the air conditioner does not trigger the next defrosting process.
In some optional embodiments, the control device 5 further comprises:
a third obtaining module 55 configured to: acquiring the outdoor ambient temperature of the air conditioner;
a calculation module 56 configured to: and calculating according to a dew point calculation formula to obtain a dew point temperature, and taking the dew point temperature as the frost point temperature to be corrected.
In some optional embodiments, the control apparatus further comprises a fourth obtaining module 57 configured to: acquiring the execution times of a defrosting process of the air conditioner after the starting;
the defrosting determination module 53 is configured to: and controlling the air conditioner to judge whether to trigger the defrosting of the next defrosting process or not based on the dew point temperature when the execution frequency of the defrosting process is zero.
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 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, which has a structure as shown in fig. 6, and includes:
at least one processor (processor)600, such as processor 600 in FIG. 6; and a memory (memory)601, and may also 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 perform the control method for defrosting the air conditioner provided in the above 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 software program, the instructions and the modules stored in the memory 601, thereby executing the functional application and the data processing, that is, implementing the control method for defrosting the air conditioner in the above 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 embodiments of the present disclosure 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 for example only and are not limiting upon 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 additional identical elements in the process, method or apparatus comprising 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 disclosure, 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 simplicity of description, the specific working processes of the above-described systems, apparatuses, and units 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 (9)
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, acquiring a first time parameter related to a current frosting state and a second time parameter related to a historical frosting state of the air conditioner; wherein the first time parameter comprises: a first accumulated operation time period T1 of the heating mode after the current defrosting process; the second time parameter includes: a second cumulative operation time period T2 of the heating mode before the present defrosting process;
matching to obtain a temperature correction value corresponding to a ratio interval based on the ratio interval where the ratio T1/T2 of the first accumulated operation duration and the second accumulated operation duration is located and a preset incidence relation;
correcting the frost point temperature based on the temperature correction value obtained by matching;
and controlling the air conditioner to perform defrosting judgment on whether to trigger the next defrosting process or not based on the corrected frost point temperature.
2. The control method according to claim 1,
the incidence relation is configured to represent the corresponding relation between one or more than one ratio interval and the temperature correction value.
3. The control method according to claim 2, characterized in that in the preset correlation, the ratio interval is in positive correlation with the temperature correction value.
4. The control method according to claim 2, wherein the correcting the frost point temperature based on the temperature correction value obtained by matching includes:
and calculating the sum of the frost point temperature and the temperature correction value to obtain the corrected frost point temperature.
5. The control method according to claim 1 or 4,
the control method further comprises the following steps: acquiring the temperature of an outdoor coil of the air conditioner;
the defrosting judgment of whether to trigger the next defrosting process or not based on the corrected frost point temperature by controlling the air conditioner comprises the following steps:
under the condition that the temperature of the outdoor coil pipe is lower than the corrected frost point temperature, judging that the air conditioner triggers the next defrosting process;
and under the condition that the temperature of the outdoor coil pipe is greater than or equal to the corrected frost point temperature, judging that the air conditioner does not trigger the next defrosting process.
6. The control method according to claim 1, wherein before correcting the frost point temperature based on the first time parameter associated with the current frost formation and the second time parameter associated with the historical frost formation, the control method further comprises:
acquiring the outdoor ambient temperature of the air conditioner;
and calculating according to a dew point calculation formula to obtain a dew point temperature, and taking the dew point temperature as the frost point temperature to be corrected.
7. The control method according to claim 6, characterized by further comprising:
acquiring the execution times of a defrosting process of the air conditioner after the starting of the air conditioner;
and under the condition that the execution times of the defrosting process is zero, controlling the air conditioner to judge whether to trigger the defrosting process of the next time based on the dew point temperature.
8. 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, acquiring a first time parameter related to a current frosting state and a second time parameter related to a historical frosting state of the air conditioner; wherein the first time parameter comprises: a first accumulated operation time period T1 of the heating mode after the current defrosting process; the second time parameter includes: a second cumulative operation time period T2 of the heating mode before the present defrosting process;
a temperature modification module configured to: matching to obtain a temperature correction value corresponding to a ratio interval based on the ratio interval where the ratio T1/T2 of the first accumulated operation duration and the second accumulated operation duration is located and a preset incidence relation; correcting the frost point temperature based on the temperature correction value obtained by matching;
a defrost determination module configured to: and controlling the air conditioner to perform defrosting judgment on whether to trigger the next defrosting process or not based on the corrected frost point temperature.
9. An air conditioner characterized by comprising the control device according to claim 8.
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| CN114646130A (en) * | 2022-03-14 | 2022-06-21 | 青岛海尔空调器有限总公司 | Control method and control system for defrosting of air conditioner, electronic equipment and storage medium |
| CN114992779A (en) * | 2022-07-05 | 2022-09-02 | 珠海格力电器股份有限公司 | Defrosting control method and device for air conditioner |
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