CN111895599B - 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
- Publication number
- CN111895599B CN111895599B CN201910372412.0A CN201910372412A CN111895599B CN 111895599 B CN111895599 B CN 111895599B CN 201910372412 A CN201910372412 A CN 201910372412A CN 111895599 B CN111895599 B CN 111895599B
- Authority
- CN
- China
- Prior art keywords
- temperature
- air conditioner
- defrosting
- corrected
- defrosting process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- 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
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 before the air conditioner executes a defrosting process; correcting the frost point temperature based on the indoor coil temperature before the air conditioner executes the defrosting process; 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. 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 temperature of the indoor coil pipe 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 larger and the triggering of the defrosting process is inaccurate due to the fact that the dew point temperature is determined by utilizing the dew point temperature and the working state of the part 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.
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, 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 and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended to be 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 before the air conditioner executes a defrosting process;
correcting the frost point temperature based on the indoor coil 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 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 before the air conditioner executes the defrosting process;
a defrost determination module configured to: 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 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:
the control method for defrosting the air conditioner, provided by the embodiment of the disclosure, can correct the frost point temperature by using the temperature of the indoor coil before the air conditioner executes the defrosting process, so that the problems of large error between the frost point temperature and the actual working condition and inaccurate triggering of the defrosting process caused by the fact that the dew point temperature is used for determining the frost point temperature and the working state of the components of the air conditioner changes in the prior art can be reduced, and more accurate control over the defrosting function of the air conditioner is realized.
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 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 air conditioner performs the defrosting determination. Therefore, the temperature of the indoor coil acquired in step S101 is the temperature of the indoor coil 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 of the indoor coil obtained in step S101 is the temperature of the indoor coil at the previous stage of the completed defrosting process.
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;
s102, correcting the frost point temperature based on the indoor coil 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 ℃ below zero, and so on; in step S102, the air conditioner corrects the selected set temperature value based on the indoor coil 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.
The control method for defrosting of the air conditioner provided by the embodiment of the disclosure can correct the frost point temperature by utilizing the temperature of the indoor coil before the air conditioner executes the defrosting process, and because the refrigerant of the air conditioner is a closed-loop circulation flow path, the frost formation condition of the outdoor unit of the air conditioner can be reflected to a certain extent by the temperature of the indoor coil, 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 of the components of the air conditioner is changed in the prior art can be solved by correcting the frost point temperature, 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 ℃ and-2 ℃ is lower than-1 ℃, judging that the air conditioner triggers the next defrosting process; and when the temperature of the outdoor coil acquired from the temperature sensor is 3 ℃, the temperature is lower than-1 ℃ and lower than 3 ℃, and the next defrosting process triggered by the air conditioner is judged.
In the embodiment of the present disclosure, if the operation of correcting the frost point temperature is completed before the air conditioner performs the defrosting judgment, the triggered next defrosting process is the defrosting process to be executed;
in another embodiment of the present disclosure, if the operation of correcting the frost point temperature is performed after the air conditioner has completed a certain defrosting process, the triggered next defrosting process is another defrosting process after the completed defrosting process.
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 according to which the defrosting determination is performed before the air conditioner executes the first defrosting process is a temperature value that is not corrected, for example, the dew point temperature is 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 under the condition that the execution frequency 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.
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;
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 step S201 can be acquired by calling the historical data of the temperature detected by the sensor;
s202, matching to obtain a temperature correction value corresponding to a temperature interval based on the temperature interval of the indoor coil before the air conditioner executes the defrosting process 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＜40 | -1 |
| 40≤t＜50 | 0 |
| 50≤t | 1 |
TABLE 1
In table 1, t represents the indoor coil temperature; the first temperature interval is t less than 40 ℃, and the corresponding temperature correction value is-1 ℃; the second temperature interval is more than or equal to 40 ℃ and less than 50 ℃, and the corresponding temperature correction value is 0 ℃; the third temperature interval is t more than or equal to 50 ℃, and the corresponding temperature corrected value is 1 ℃; therefore, in step S202, the air conditioner may find and match the temperature correction value corresponding to the defrosting time period through the table.
The correlation is a value determined by calculation through experiments and the like before the air conditioner leaves a factory, and is prestored in a control device such as a computer board, a processor and the like of the air conditioner.
S203, correcting the 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 S203 to obtain the corrected frost point temperature.
And S204, 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 S204 may refer to the foregoing embodiments, which are not described herein again.
The control method for defrosting of the air conditioner, which is disclosed in the embodiment of the disclosure, searches and matches a temperature correction value of an indoor coil temperature before a corresponding air conditioner executes a defrosting process through a preset incidence relation, wherein the indoor coil temperature can reflect the influence of a frosting condition of an outdoor unit on a refrigerant temperature before the air conditioner performs defrosting; and then, the frost point temperature is corrected according to the temperature correction value, and the frost point temperature matched with the current working condition can be accurately determined, so that the air conditioner can trigger the defrosting process of the air conditioner 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, calling historical detection data of the indoor coil temperature before the defrosting process is executed;
s302, determining the maximum value and the minimum value of the temperature of the indoor coil in historical detection data;
s303, calculating a temperature difference value between the maximum value and the minimum value of the temperature of the indoor coil;
s304, matching to obtain a temperature correction value corresponding to a temperature interval based on a preset incidence relation and the temperature interval where the temperature difference value between the maximum value and the minimum value of the indoor coil temperature 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＜10 | -1 |
| 10≤△t＜20 | 0 |
| 20≤△t | 1 |
TABLE 2
In table 2, Δ t represents a temperature difference between the maximum value and the minimum value of the indoor coil temperature; the first temperature interval is that delta t is less than 10 ℃, and the corresponding temperature correction value is-1 ℃; the second temperature interval is more than or equal to 10 ℃ and less than 20 ℃, and the corresponding temperature correction value is 0 ℃; the third temperature interval is that delta t is more than or equal to 20 ℃, and the corresponding temperature correction value is 1 ℃; therefore, in step S304, 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.
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 to obtain the corrected frost point temperature.
And S306, 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.
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.
According to the control method for defrosting of the air conditioner, the temperature correction value of the temperature difference value between the maximum value and the minimum value of the indoor coil 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 larger, the indoor coil temperature is more greatly influenced by the outdoor environment, the outdoor environment is worse, and the frosting condition of the outdoor unit is more serious, so that the defrosting point temperature is 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. 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 before the defrosting process is executed by the air conditioner;
a temperature modification module 42 configured to: correcting the frost point temperature based on the indoor coil 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:
matching to obtain a temperature correction value corresponding to a temperature interval based on the temperature interval of the indoor coil before the defrosting process is executed by the air conditioner and a preset incidence relation; wherein the incidence relation is configured to represent the 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:
determining the maximum value and the minimum value of the indoor coil temperature before the air conditioner executes the defrosting process;
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 maximum value and the minimum value of the temperature of the indoor coil is located and a preset incidence relation; wherein the incidence relation is configured to represent the 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 determination module 43 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 ambient 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 trigger 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 (Communication Interface) 502 and a bus 503. The processor 500, the communication interface 502, and the memory 501 may communicate with each other through a bus 503. The 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 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 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 phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional 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 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 technical 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 position, or may be distributed on multiple 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 (7)
1. A control method for defrosting an air conditioner is characterized by comprising the following steps:
acquiring the temperature of an indoor coil before the air conditioner executes a defrosting process;
correcting the frost point temperature based on the indoor coil temperature before the air conditioner executes the defrosting process; the method comprises the following steps: matching to obtain a corresponding temperature correction value based on a preset incidence relation and a temperature interval where the indoor coil temperature is located before the air conditioner executes the defrosting process; wherein, in the correlation, when t is less than 40 ℃, the temperature correction value is-1 ℃; when t is more than or equal to 40 ℃ and less than 50 ℃, the corrected temperature value is 0; when t is more than or equal to 50 ℃, the corrected temperature value is 1 ℃; wherein t is the indoor coil temperature; alternatively, the first and second liquid crystal display panels may be,
matching to obtain a corresponding temperature correction value based on a preset incidence relation and a temperature difference interval where a temperature difference value between the maximum value and the minimum value of the indoor coil temperature before the air conditioner executes the defrosting process; wherein, in the correlation, when delta t is less than 10 ℃, the temperature correction value is-1 ℃; when delta t is more than or equal to 10 ℃ and less than 20 ℃, the corrected temperature value is 0; when the temperature is less than or equal to delta t at 20 ℃, the corrected temperature value is 1 ℃; wherein, Δ t is the temperature difference between the maximum value and the minimum value of the indoor coil temperature;
correcting the frost point temperature based on the temperature correction value obtained by matching;
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;
before the frost point temperature is corrected based on the indoor coil temperature before the defrosting process is executed by the air conditioner, the outdoor environment temperature of the air conditioner is obtained;
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.
2. The control method according to claim 1,
the correlation is configured to characterize a correspondence of one or more temperature intervals to temperature correction values.
3. 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.
4. 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.
5. The control method according to claim 1, 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.
6. A control device for defrosting of an air conditioner, comprising:
a first acquisition module configured to: acquiring the temperature of an indoor coil 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 before the air conditioner executes the defrosting process; the method comprises the following steps: matching to obtain a corresponding temperature correction value based on a preset incidence relation and a temperature interval where the indoor coil temperature is located before the air conditioner executes the defrosting process; wherein, in the correlation, when t is less than 40 ℃, the temperature correction value is-1 ℃; when t is more than or equal to 40 ℃ and less than 50 ℃, the temperature correction value is 0; when the temperature is more than or equal to 50 ℃, the corrected temperature value is 1 ℃; wherein t is the indoor coil temperature; alternatively, the first and second liquid crystal display panels may be,
matching to obtain a corresponding temperature correction value based on a preset incidence relation and a temperature difference interval where a temperature difference value between the maximum value and the minimum value of the indoor coil temperature before the air conditioner executes the defrosting process; wherein, in the correlation, when delta t is less than 10 ℃, the temperature correction value is-1 ℃; when delta t is more than or equal to 10 ℃ and less than 20 ℃, the temperature correction value is 0; when the temperature is less than or equal to delta t at 20 ℃, the corrected temperature value is 1 ℃; wherein, the delta t is the temperature difference between the maximum value and the minimum value of the temperature of the indoor coil;
correcting the frost point temperature based on the temperature correction value obtained by matching;
a third acquisition module configured to: acquiring the outdoor ambient temperature of the air conditioner;
a computing module configured to: calculating to obtain dew point temperature according to a dew point calculation formula, and taking the dew point temperature as the frost point temperature to be corrected;
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.
7. An air conditioner characterized by comprising the control device according to claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910372412.0A CN111895599B (en) | 2019-05-06 | 2019-05-06 | Control method and device for defrosting of air conditioner and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910372412.0A CN111895599B (en) | 2019-05-06 | 2019-05-06 | Control method and device for defrosting of air conditioner and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111895599A CN111895599A (en) | 2020-11-06 |
| CN111895599B true CN111895599B (en) | 2022-11-18 |
Family
ID=73169482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910372412.0A Active CN111895599B (en) | 2019-05-06 | 2019-05-06 | Control method and device for defrosting of air conditioner and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111895599B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754465A (en) * | 2022-04-29 | 2022-07-15 | 青岛海尔空调电子有限公司 | Control method and device for defrosting, defrosting control system and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040041442A (en) * | 2002-11-11 | 2004-05-17 | 삼성전자주식회사 | Operation method for defrosting evaporator in air conditioner |
| JP2009287811A (en) * | 2008-05-28 | 2009-12-10 | Sharp Corp | Air conditioner |
| CN101737902A (en) * | 2009-11-06 | 2010-06-16 | 海信科龙电器股份有限公司 | Defrosting method of air conditioner |
| CN104019531A (en) * | 2014-05-30 | 2014-09-03 | 广东美的制冷设备有限公司 | Defrosting method of air-conditioner and air-conditioner |
| CN105674496A (en) * | 2016-02-02 | 2016-06-15 | 青岛海尔空调器有限总公司 | Defrosting method for air conditioner |
| CN108413562A (en) * | 2018-02-05 | 2018-08-17 | 青岛海尔空调器有限总公司 | A kind of self-cleaning control method and device of air-conditioning |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104634009B (en) * | 2013-11-14 | 2017-02-08 | 珠海格力电器股份有限公司 | Control method for air conditioner circulation device |
| US9933200B2 (en) * | 2013-11-27 | 2018-04-03 | Lennox Industries Inc. | Defrost operation management |
| CN104930674B (en) * | 2015-05-14 | 2017-11-17 | 珠海格力电器股份有限公司 | Air-conditioner set outdoor unit defrosting control method, device and air-conditioning system |
| CN106524388A (en) * | 2015-09-11 | 2017-03-22 | 弗德里希新能源科技(杭州)股份有限公司 | Defrosting control method for heat pump unit and air conditioner heat pump unit adopting defrosting control method |
| CN105135629B (en) * | 2015-09-30 | 2018-01-09 | 海信（山东）空调有限公司 | Air conditioner defrosting control method and air conditioner |
| CN105605840B (en) * | 2016-02-01 | 2018-06-05 | 浙江丹特卫顿热泵有限公司 | A kind of intelligent defrosting method with learning functionality |
| CN106679117A (en) * | 2017-01-24 | 2017-05-17 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method and device |
| CN107655150A (en) * | 2017-10-16 | 2018-02-02 | 广东美的暖通设备有限公司 | Air-conditioner defrosting control device and method |
| CN108692422B (en) * | 2018-05-21 | 2020-06-05 | 广东美的暖通设备有限公司 | Air conditioner defrosting time length adjusting method and device, air conditioner and readable storage medium |
-
2019
- 2019-05-06 CN CN201910372412.0A patent/CN111895599B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040041442A (en) * | 2002-11-11 | 2004-05-17 | 삼성전자주식회사 | Operation method for defrosting evaporator in air conditioner |
| JP2009287811A (en) * | 2008-05-28 | 2009-12-10 | Sharp Corp | Air conditioner |
| CN101737902A (en) * | 2009-11-06 | 2010-06-16 | 海信科龙电器股份有限公司 | Defrosting method of air conditioner |
| CN104019531A (en) * | 2014-05-30 | 2014-09-03 | 广东美的制冷设备有限公司 | Defrosting method of air-conditioner and air-conditioner |
| CN105674496A (en) * | 2016-02-02 | 2016-06-15 | 青岛海尔空调器有限总公司 | Defrosting method for air conditioner |
| CN108413562A (en) * | 2018-02-05 | 2018-08-17 | 青岛海尔空调器有限总公司 | A kind of self-cleaning control method and device of air-conditioning |
Non-Patent Citations (1)
| Title |
|---|
| 风源热泵模糊自修正除霜技术应用研究;王铁军等;《制冷学报》;20050325(第01期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111895599A (en) | 2020-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111895593B (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN112050369B (en) | Control method and control device for defrosting of air conditioner and air conditioner | |
| CN108444037B (en) | Defrosting control method for air conditioner | |
| CN110762747B (en) | Defrosting control method of air conditioner | |
| CN111895596B (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN110749041B (en) | Operation control method and system of air conditioner, air conditioner and storage medium | |
| CN108917094A (en) | A kind of defrosting control method, device and air conditioner | |
| CN113587364A (en) | Defrosting control method for multi-split air conditioning unit | |
| CN111895602B (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN112050376A (en) | Control method and control device for defrosting of air conditioner and air conditioner | |
| CN111895597B (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN112050375A (en) | Control method and control device for defrosting of air conditioner and air conditioner | |
| CN112050377A (en) | Control method and control device for defrosting of air conditioner and air conditioner | |
| CN111895599B (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN111895601A (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN111895595B (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN111895591B (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN110470009B (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN111895600B (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN112050373A (en) | Control method and control device for defrosting of air conditioner and air conditioner | |
| CN110470012B (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN111895592B (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN112050367B (en) | Control method and control device for defrosting of air conditioner and air conditioner | |
| CN110470003B (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN111895598B (en) | Control method and device for defrosting of air conditioner and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
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. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |