CN111895602A - 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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- CN111895602A CN111895602A CN201910372428.1A CN201910372428A CN111895602A CN 111895602 A CN111895602 A CN 111895602A CN 201910372428 A CN201910372428 A CN 201910372428A CN 111895602 A CN111895602 A CN 111895602A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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: acquiring the temperature of an indoor coil and the indoor environment temperature before the air conditioner executes a defrosting process; correcting the frost point temperature based on the indoor coil temperature and the indoor environment temperature before the air conditioner executes the defrosting process; 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. 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 indoor coil temperature and the indoor environment temperature before the air conditioner executes the defrosting process, so that the problems that the error between the frost point temperature and the actual working condition is large 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 change of the parts of the air conditioner in the prior art can be reduced, and the defrosting function of the air conditioner is controlled more accurately.
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 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:
acquiring the temperature of an indoor coil and the indoor environment temperature before the air conditioner executes a defrosting process;
correcting the frost point temperature based on the indoor coil temperature and the indoor environment temperature before the air conditioner executes the defrosting process;
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 a control device for defrosting of an air conditioner.
In some embodiments, the control device comprises:
a first acquisition module configured to: acquiring the temperature of an indoor coil and the indoor environment temperature before the air conditioner executes a defrosting process;
a temperature modification module configured to: correcting the frost point temperature based on the indoor coil temperature and the indoor environment temperature before the air conditioner executes the defrosting process;
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 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 content of the first and second substances,
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 indoor coil temperature and the indoor environment temperature before the air conditioner executes the defrosting process, so that the problems that the error between the frost point temperature and the actual working condition is large 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 change of the parts of the air conditioner in the prior art can be reduced, and the defrosting function of the air conditioner is 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 schematic structural diagram of a control device for defrosting an air conditioner according to an embodiment of the present disclosure;
fig. 5 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, acquiring the temperature of an indoor coil and the indoor environment temperature before the air conditioner executes a defrosting process;
in an alternative embodiment of the present disclosure, the operation of correcting the frost point temperature in step S102 is performed before the defrosting determination of the air conditioner. Therefore, the temperature data obtained in step S101 is the temperature of the indoor coil and the temperature of the indoor environment before the defrosting process corresponding to the defrosting determination is executed;
in another embodiment of the present disclosure, 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 temperature data obtained in step S101 is the temperature of the coil and the temperature of the indoor environment at the stage before the completed defrosting process has been performed.
The coil pipe position of the indoor unit of the air conditioner is provided with a temperature sensor which can be used for detecting the temperature value of the coil pipe of the indoor unit; therefore, in step S101, the temperature value of the coil of the indoor unit detected by the temperature sensor is obtained as the indoor coil temperature; the indoor unit of the air conditioner is also provided with a temperature sensor which can be used for detecting the temperature value of the indoor environment; therefore, in step S101, the temperature value of the indoor environment detected by the temperature sensor is obtained as the indoor environment temperature;
after the air conditioner is started to operate, the sensor detects the real-time temperature and stores the real-time temperature as historical data, and therefore the maximum value and the minimum value of the indoor environment temperature can be determined by calling the historical data of the temperature detected by the sensor and comparing the numerical value of each indoor environment temperature.
S102, correcting the frost point temperature based on the indoor coil temperature and the indoor environment temperature before the air conditioner executes the defrosting process;
in the embodiment of the present disclosure, 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 so on; in step S102, the air conditioner corrects the selected set temperature value based on the indoor coil temperature and the indoor environment temperature before the defrosting process;
in another embodiment of the present disclosure, the frost point temperature value is a value obtained by a preset parameter calculation method. 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 indoor coil temperature and the indoor environment temperature before the air conditioner executes the defrosting process, so that the problems that the error between the frost point temperature and the actual working condition is large 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 change of the parts of the air conditioner in the prior art can be reduced, and the defrosting function of the air conditioner is 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.
The air conditioner counts the execution times of the defrosting process after starting up, and 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 temperature of an indoor coil before the air conditioner executes a defrosting process;
s202, acquiring the indoor environment temperature before the air conditioner executes the defrosting process;
here, after the air conditioner is started, the sensor detects the real-time temperature and stores the real-time temperature as historical data, so that the temperature information of the steps S201 and S202 can be obtained by calling the historical data of the temperature detected by the sensor;
s203, calculating the temperature difference between the indoor coil temperature and the indoor environment temperature;
s204, matching to obtain a temperature correction value corresponding to a temperature interval based on the temperature interval in which the temperature difference between the indoor coil temperature and the indoor environment temperature is located and a preset incidence relation;
in an embodiment of the disclosure, the correlation is configured to characterize a correspondence of one or more temperature intervals to temperature correction values; in the preset incidence relation, when the temperature interval is a first temperature interval, the temperature correction value is a negative value; when the temperature interval is a second temperature interval, the temperature correction value is zero; when the temperature interval is a third temperature interval, the temperature correction value is a positive value; the second temperature interval is greater than the second temperature interval and less than the third temperature interval.
For example, table 1 shows the correspondence between an optional temperature interval and a temperature correction value.
| Temperature interval (Unit:. degree.C.) | Temperature correction value (Unit:. degree. C.) |
| △t＜15 | -1 |
| 15≤△t＜25 | 0 |
| 25≤△t | 1 |
TABLE 1
In table 1, Δ t represents a temperature difference between the indoor coil temperature and the indoor ambient temperature; the first temperature interval is that delta t is less than 15 ℃, and the corresponding temperature correction value is-1 ℃; the second temperature interval is more than or equal to 15 ℃ and less than 25 ℃, and the corresponding temperature correction value is 0 ℃; the third temperature interval is that delta t is more than or equal to 25 ℃, and the corresponding temperature correction value is 1 ℃; therefore, in step S204, the air conditioner may find and match the temperature 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.
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.
According to the control method for defrosting of the air conditioner, the temperature correction value of the temperature difference value between the indoor coil temperature and the indoor environment temperature before the defrosting process is executed by the air conditioner is searched and matched through the preset incidence relation, when the temperature difference value is large, the indoor temperature influenced by the outdoor environment is low, the outdoor environment is severe, and the frosting condition of the outdoor unit is severe, so that the frost point temperature can be corrected according to the temperature correction value, the defrosting process can be triggered more easily to defrost the outdoor unit of the air conditioner, and the operation requirement of the air conditioner under the current working condition is met.
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 indoor coil before the air conditioner executes a defrosting process;
s302, historical detection data of the indoor coil temperature before the defrosting process is executed are retrieved, and the maximum value and the minimum value of the indoor environment temperature in the historical detection data are determined;
here, after the air conditioner is started to operate, the sensor detects the real-time temperature and stores the real-time temperature as historical data, so that the temperature information of the steps S301 and S302 can be obtained by calling the historical data of the temperature detected by the sensor;
s303, calculating a first temperature difference value of the maximum value of the indoor coil temperature and the indoor environment temperature, and calculating a second temperature difference value of the minimum value of the indoor coil temperature and the indoor environment temperature;
in the embodiment of the present disclosure, if the indoor coil temperature is Te, the maximum value of the indoor ambient temperature is Tao1, and the minimum value of the indoor ambient temperature is Tao2, the first temperature difference calculated in step S303 is Te-Tao1, and the second temperature difference is Te-Tao 2;
s304, calculating a temperature deviation value between the first temperature difference value and the second temperature difference value;
s305, matching to obtain a temperature correction value corresponding to a temperature range based on a preset incidence relation and a temperature range in which a temperature deviation value between the first temperature difference value and the second temperature difference value is located;
in an embodiment of the disclosure, the correlation is configured to characterize a correspondence of one or more temperature intervals to temperature correction values; in the preset incidence relation, when the temperature interval is a first temperature interval, the temperature correction value is a negative value; when the temperature interval is a second temperature interval, the temperature correction value is zero; when the temperature interval is a third temperature interval, the temperature correction value is a positive value; the second temperature interval is greater than the second temperature interval and less than the third temperature interval.
For example, table 2 shows the correspondence between an optional temperature interval and a temperature correction value.
| Temperature interval (Unit:. degree.C.) | Temperature correction value (Unit:. degree. C.) |
| △t＜5 | -1 |
| 5≤△t＜10 | 0 |
| 10≤△t | 1 |
TABLE 2
In table 2, Δ t represents a temperature deviation value between the first temperature difference value and the second temperature difference value; the first temperature interval is that delta t is less than 5 ℃, and the corresponding temperature correction value is-1 ℃; the second temperature interval is more than or equal to 2 ℃ and less than 10 ℃, and the corresponding temperature correction value is 0 ℃; the third temperature interval is that delta t is more than or equal to 10 ℃, and the corresponding temperature correction value is 1 ℃; therefore, in step S305, the air conditioner may find and match the temperature 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.
S306, 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 S306, and the corrected frost point temperature is obtained.
And S307, 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 S307 may refer to the foregoing embodiments, which are not described herein again.
The control method for defrosting the air conditioner, which is disclosed in the embodiment of the disclosure, searches for a temperature correction value of a temperature deviation value obtained by calculation according to the maximum value and the minimum value of the indoor coil temperature and the indoor environment temperature before the corresponding air conditioner executes a defrosting process through a preset incidence relation; when the numerical value of the temperature difference value is large, the fact that the indoor temperature affected by the outdoor environment is low is demonstrated, the outdoor environment is severe, and the frosting condition of the outdoor unit is severe, so that the frost point temperature is corrected according to the temperature correction value, and the defrosting process can be triggered more easily to defrost the outdoor unit of the air conditioner, so that the operation requirement of the air conditioner on the current working condition is met.
Fig. 4 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. 4, the embodiment of the present disclosure provides a control device 4 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 4 includes:
a first obtaining module 41 configured to: acquiring the temperature of an indoor coil and the indoor environment temperature before the air conditioner executes a defrosting process;
a temperature modification module 42 configured to: correcting the frost point temperature based on the indoor coil temperature and the indoor environment temperature before the defrosting process is executed by the air conditioner;
a defrost determination module 43 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 temperature modification module 42 is configured to:
calculating the temperature difference between the indoor coil temperature and the indoor environment temperature;
matching to obtain a temperature correction value corresponding to the temperature interval based on the temperature interval in which the temperature difference value between the indoor coil temperature and the indoor environment temperature is located and a preset incidence relation; wherein the incidence relation is configured to represent a corresponding relation between one or more temperature intervals and the temperature correction value;
and correcting the frost point temperature based on the temperature correction value obtained by matching.
In some optional embodiments, the temperature modification module 42 is configured to:
calculating a first temperature difference value of the maximum values of the indoor coil temperature and the indoor environment temperature and a second temperature difference value of the minimum values of the indoor coil temperature and the indoor environment temperature;
matching to obtain a temperature correction value corresponding to the temperature range based on the temperature range in which the temperature deviation value between the first temperature difference value and the second temperature difference value is located and a preset incidence relation; wherein the incidence relation is configured to represent a corresponding relation between one or more temperature intervals and the temperature correction value;
and correcting the frost point temperature based on the temperature correction value obtained by matching.
In some optional embodiments, the temperature modification module 42 is configured to: calculating the sum of the frost point temperature and the temperature correction value to obtain the corrected frost point temperature;
in the preset incidence relation, when the temperature interval is a first temperature interval, the temperature correction value is a negative value; when the temperature interval is a second temperature interval, the temperature correction value is zero; when the temperature interval is a third temperature interval, the temperature correction value is a positive value; the second temperature interval is greater than the second temperature interval and less than the third temperature interval.
In some optional embodiments, the control apparatus 4 further comprises a second obtaining module 44 configured to: acquiring the temperature of an outdoor coil of an air conditioner;
the defrost trigger module 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 4 further comprises:
a third obtaining module 45 configured to: acquiring the outdoor environment temperature of the air conditioner;
a calculation module 46 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 4 further comprises a fourth obtaining module 47 configured to: acquiring the execution times of a defrosting process of the air conditioner after the starting;
the defrost determination module 43 is further 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, a structure of which is shown in fig. 5, where the electronic device includes:
at least one processor (processor)500, such as processor 500 in FIG. 5; and a memory (memory)501, and may further include a Communication Interface 502 and a bus 503. The processor 500, the communication interface 502, and the memory 501 may communicate with each other via a bus 503. Communication interface 502 may be used for information transfer. The processor 500 may call logic instructions in the memory 501 to execute the control method of air conditioner defrosting provided in the above-described embodiment.
In addition, the logic instructions in the memory 501 may be implemented in the form of software functional units and may be stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 501 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 500 executes functional applications and data processing by running software programs, instructions and modules stored in the memory 501, so as to implement the control method for defrosting the air conditioner in the above method embodiment.
The memory 501 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. Further, the memory 501 may include a high-speed random access memory and may also include a nonvolatile 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 (10)
1. A control method for defrosting of an air conditioner is characterized by comprising the following steps:
acquiring the temperature of an indoor coil and the indoor environment temperature before the air conditioner executes a defrosting process;
correcting the frost point temperature based on the indoor coil temperature and the indoor environment temperature before the air conditioner executes the defrosting process;
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 of claim 1, wherein the correcting the frost point temperature based on the indoor coil temperature and the indoor ambient temperature before the air conditioner performs the defrost process comprises:
calculating a temperature difference between the indoor coil temperature and the indoor ambient temperature;
matching to obtain a temperature correction value corresponding to the temperature interval based on the temperature interval in which the temperature difference between the indoor coil temperature and the indoor environment temperature is located and a preset incidence relation; wherein the correlation is configured to characterize a correspondence of one or more temperature intervals to temperature correction values;
and correcting the frost point temperature based on the temperature correction value obtained by matching.
3. The control method of claim 1, wherein the correcting the frost point temperature based on the indoor coil temperature and the indoor ambient temperature before the air conditioner performs the defrost process comprises:
calculating a first temperature difference value between the indoor coil temperature and the maximum value of the indoor environment temperature, and a second temperature difference value between the indoor coil temperature and the minimum value of the indoor environment temperature;
matching to obtain a temperature correction value corresponding to the temperature range based on a preset incidence relation and a temperature range in which the temperature deviation value between the first temperature difference value and the second temperature difference value is located; wherein the correlation is configured to characterize a correspondence of one or more temperature intervals to temperature correction values;
and correcting the frost point temperature based on the temperature correction value obtained by matching.
4. The control method according to claim 2 or 3, wherein the correcting the frost point temperature based on the temperature correction value obtained by matching includes: calculating the sum of the frost point temperature and the temperature correction value to obtain the corrected frost point temperature;
in the preset incidence relation, when the temperature interval is a first temperature interval, the temperature correction value is a negative value; when the temperature interval is a second temperature interval, the temperature correction value is zero; when the temperature interval is a third temperature interval, the temperature correction value is a positive value; the second temperature interval is larger than the second temperature interval and smaller than the third temperature interval.
5. The control method according to claim 1,
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 a frost point temperature based on an indoor coil temperature before the air conditioner performs the defrosting process, the control method further comprises:
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.
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;
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 of the next defrosting process or not based on the dew point temperature.
8. A control device for defrosting of an air conditioner, comprising:
a first acquisition module configured to: acquiring the temperature of an indoor coil and the indoor environment temperature before the air conditioner executes a defrosting process;
a temperature modification module configured to: correcting the frost point temperature based on the indoor coil temperature and the indoor environment temperature before the air conditioner executes the defrosting process;
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. The control device of claim 8, wherein the temperature modification module is configured to:
calculating a temperature difference between the indoor coil temperature and the indoor ambient temperature;
matching to obtain a temperature correction value corresponding to the temperature interval based on the temperature interval in which the temperature difference between the indoor coil temperature and the indoor environment temperature is located and a preset incidence relation; wherein the correlation is configured to characterize a correspondence of one or more temperature intervals to temperature correction values;
and correcting the frost point temperature based on the temperature correction value obtained by matching.
10. An air conditioner characterized by comprising the control device according to any one of claims 8 to 9.
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Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant before: QINGDAO HAIER JOINT STOCK Co.,Ltd. |
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Effective date of registration: 20211202 Address after: No.1 Gangcheng South Road, Jiangbei District, Chongqing, 400026 Applicant after: CHONGQING HAIER AIR-CONDITIONER Co.,Ltd. Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant before: Haier Zhijia Co.,Ltd. |
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