CN111895595B - Control method, device and air conditioner for defrosting air conditioner - Google Patents

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 a power parameter of the air conditioner related to the current heat exchange power; correcting the frost point temperature based on the power parameter of the current heat exchange power; and controlling the air conditioner to perform defrosting judgment on whether to trigger the next defrosting process or not based on the corrected frost point temperature. The control method for defrosting the air conditioner, provided by the embodiment of the disclosure, can correct the frost point temperature by using the power parameter of the current heat exchange power associated with the air conditioner, so that the problems of large error between the frost point temperature and the actual working condition and inaccurate triggering of a 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 the defrosting function of the air conditioner can be controlled more accurately.

Description

Control method and device for defrosting air conditioner and air conditioner

technical field

The present application relates to the technical field of air conditioner defrosting, for example, to an air conditioner and a defrosting control method thereof.

Background technique

With the improvement of people's living standards, air-conditioning equipment has entered thousands of households. One of the problems is that the outdoor unit of the air conditioner is frosted and frozen when the air conditioner is operating in a severe cold climate. When the air conditioner operates in a low temperature area or an area with strong wind and snow, the water condensed on the outer surface of the condenser of the outdoor unit will drip onto the chassis. When the air conditioner is running for a long time, the condenser and chassis of the air conditioner will be damaged. When there is an icing problem, the ice layer condensed on the outdoor unit will hinder the heat exchange between the internal refrigerant and the outdoor environment, which will reduce the cooling efficiency of the air conditioner. The additional consumption and user usage cost increase.

Therefore, in order to solve the problem that the outdoor unit of the air conditioner freezes, some existing air conditioners are equipped with a defrosting function. For example, the outdoor unit is heated by a heating device installed in the outdoor unit, or the high-temperature refrigerant discharged from the compressor is used. Defrost and thaw the outdoor heat exchanger. Here, before the air conditioner activates the defrost function, the air conditioner generally uses the combination of the temperature of the outer coil detected by the outdoor sensor and the frost point temperature to determine whether it has reached a temperature condition that is easy to condense frost, and then determines whether to activate the defrost function.

In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art: the air conditioner generally uses the dew point temperature calculated by the external ambient temperature parameters as the frost point temperature, and since many outdoor units are not provided with a humidity sensor, the detection can be used to accurately calculate the dew point. The temperature and humidity parameters and the working state of each component of the air conditioner will also change after each defrost is completed. Therefore, the frost point temperature determined by this method has a large error with the actual working condition, which cannot meet the precise control of the air conditioner to trigger defrost. functional needs.

SUMMARY OF THE INVENTION

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended to be an extensive review, nor to identify key/critical elements or to delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

The embodiments of the present disclosure provide a control method for defrosting an air conditioner.

In some embodiments, the control method includes:

obtaining a power parameter associated with the current heat exchange power of the air conditioner;

Correcting the frost point temperature based on the power parameter of the current heat exchange power;

Based on the corrected frost point temperature, the air conditioner is controlled to perform a defrosting judgment on whether to trigger the next defrosting process.

Embodiments of the present disclosure provide a control device for defrosting an air conditioner.

In some embodiments, the control device includes:

a first obtaining module, configured to: obtain a power parameter of the air conditioner associated with the current heat exchange power;

a temperature correction module, configured to: correct the frost point temperature based on the power parameter of the current heat exchange power;

The defrosting judgment module is configured to: control the air conditioner to perform a defrosting judgment on whether to trigger the next defrosting process based on the corrected frost point temperature.

Embodiments of the present disclosure provide an air conditioner.

In some embodiments, the air conditioner includes the aforementioned control device.

Embodiments of the present disclosure provide an electronic device.

In some embodiments, the electronic device includes:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein,

The memory stores instructions executable by the at least one processor, and when executed by the at least one processor, the instructions cause the at least one processor to execute the aforementioned control method.

Embodiments of the present disclosure 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 defrosting control method for an air conditioner provided by the embodiments of the present disclosure can correct the frost point temperature by using the power parameter associated with the current heat exchange power of the air conditioner, thereby reducing the use of the dew point temperature to determine the frost point temperature and the work of the air conditioner's own components in the prior art. The large error between the frost point temperature and the actual working condition caused by the change of state, and the inaccurate triggering of the defrosting process, realizes more precise control of the defrosting function of the air conditioner.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the accompanying drawings, which are not intended to limit the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings do not constitute a limitation of scale, and in which:

1 is a schematic flowchart of a control method for an air conditioner defrosting provided by an embodiment of the present disclosure;

2 is a schematic flowchart of a control method for defrosting an air conditioner provided by another embodiment of the present disclosure;

3 is a schematic flowchart of a control method for an air conditioner defrosting provided by another embodiment of the present disclosure;

4 is a schematic flowchart of a control method for defrosting an air conditioner provided by another embodiment of the present disclosure;

5 is a schematic structural diagram of a control device for defrosting an air conditioner provided by an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of an electronic device provided by an embodiment of the present disclosure.

Detailed ways

In order to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are for reference only and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, numerous details are provided 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 simplified in order to simplify the drawings.

FIG. 1 is a schematic flowchart of a control method for defrosting an air conditioner provided by 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. Acquire a power parameter associated with the current heat exchange power of the air conditioner;

In some optional embodiments, the operation of correcting the frost point temperature is performed after the air conditioner has completed a certain defrosting process.

Here, the power parameter associated with the current heat exchange power includes the exhaust temperature of the compressor before the air conditioner executes the defrosting process and/or the working current of the air conditioner, which respectively affect the refrigerant temperature and power consumption of the air conditioner during the heat exchange process, The current heat exchange power of the air conditioner can affect the actual frosting condition of the air conditioner to a certain extent; here, the embodiment of the present disclosure is applied to the heating condition where the frosting problem may exist. In the air conditioner in the embodiment of the present disclosure, after the air conditioner completes a certain defrosting process, the frost point temperature is corrected by the first time parameter and the second time parameter, and the corrected frost point temperature is used for the next time to be executed. The defrosting judgment of the defrosting process.

Optionally, the air conditioner in the embodiment of the present disclosure is provided with a power statistics module, and the power statistics module can be used to count the power parameters associated with the current heat exchange power; save.

In some embodiments, the power statistics module includes a temperature sensor disposed at the position of the exhaust pipe of the compressor of the air conditioner, and the temperature sensor can be used to detect the exhaust temperature value of the refrigerant discharged through the exhaust pipe of the indoor unit; therefore Step S101 is to acquire the exhaust temperature value of the refrigerant detected by the temperature sensor as the exhaust temperature of the compressor.

In some embodiments, the working current of the air conditioner can be obtained by statistics from components such as an electronic control panel, a fan, and a power supply.

S102, correcting the frost point temperature based on the power parameter associated with the current heat exchange power;

In some optional embodiments, the corrected frost point temperature is a set temperature value of one or more different temperature values pre-stored by the air conditioner, such as 0°C, -2°C, etc.; in step S102, the air conditioner is based on the correlation The operation of correcting the selected set temperature value by the power parameter of the current heat exchange power;

In some other optional embodiments, the frost point temperature value is a value obtained through 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;

Among them, Tes is the dew point temperature, A is the calculation coefficient of the outdoor ambient temperature, Tai is the outdoor ambient temperature, and B is the calculation constant;

The dew point temperature is obtained by calculating the dew point calculation formula above, 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 step S102 is executed, the flow steps of the control method further include: acquiring the outdoor ambient temperature where the air conditioner is located; calculating the dew point temperature according to the dew point calculation formula, and using the dew point temperature as the value to be corrected. Frost point temperature.

Here, the air conditioner is also provided with a temperature sensor located in the outdoor unit, and the temperature sensor can be used to detect the real-time outdoor environmental temperature of the outdoor environment. In this way, by obtaining the outdoor environmental parameters detected by the temperature sensor, it is possible to determine the to-be-corrected according to the above process steps. frost point temperature.

S103. Based on the corrected frost point temperature, control the air conditioner to perform a defrosting judgment of whether to trigger the next defrosting process.

Optionally, in step S103, the detected outdoor ambient temperature or the outdoor coil temperature may be compared with the corrected frost point temperature, and if the outdoor ambient temperature or the outdoor coil temperature is lower than the corrected frost point temperature, then It is determined that the air conditioner triggers the next defrosting process; otherwise, it is determined that the air conditioner does not trigger the next defrosting process.

The defrosting control method for an air conditioner provided by the embodiment of the present disclosure can correct the frost point temperature by using the power parameter associated with the current heat exchange power of the air conditioner, thereby reducing the use of the dew point temperature to determine the frost point temperature and the work of the air conditioner itself in the prior art. The large error between the frost point temperature and the actual working condition caused by the state change, and the inaccurate triggering of the defrosting process, realizes a more precise control of the defrosting function of the air conditioner.

In some optional embodiments, the specific execution process of step S103 includes: acquiring the outdoor coil temperature of the air conditioner; comparing the outdoor coil temperature with the corrected frost point temperature, and when the outdoor coil temperature is lower than the corrected frost temperature In the case of the point temperature, it is determined that the air conditioner triggers the next defrost process; in the case that the outer coil temperature is greater than or equal to the corrected frost point temperature, it is determined that the air conditioner does not trigger the next defrost process.

In the embodiment of the present disclosure, the outdoor unit of the air conditioner is additionally provided with a temperature sensor, which can be used to detect the real-time outdoor coil temperature of the coil of the outdoor unit; therefore, the above steps are to obtain the temperature detected by the temperature sensor. Outdoor coil temperature;

Exemplarily, the corrected frost point temperature is -1°C; when the outdoor coil temperature obtained from the temperature sensor is -2°C, and -2°C <-1°C, it is determined that the air conditioner triggers the next defrosting process; When the temperature of the outdoor coil obtained from the temperature sensor is 3°C and -1°C < 3°C, it is determined that the air conditioner triggers the next defrosting process.

When it is determined that the air conditioner does not trigger the next defrosting process, the current process ends; or, the air conditioner may re-execute the frost point temperature correction and defrosting determination processes in steps S101 to S103 after a certain period of time.

In the above-mentioned embodiments of the present disclosure, the specific defrosting method of the defrosting process triggered by the air conditioner does not involve the innovation of the present application, so it will not be repeated.

In some optional embodiments, after the air conditioner is powered on this time and the defrosting process has not been performed, the air conditioner does not correct the frost point temperature, and the air conditioner performs the first defrosting process before performing the defrosting judgment based on the frost point. The temperature is the temperature value without correction, such as the dew point temperature calculated by the parameter calculation formula above.

Therefore, the process steps of the control method of the present application further include: acquiring the execution times of the defrosting process after the air conditioner is turned on this time; and in the case of zero execution times of the defrosting process, controlling whether the air conditioner is triggered to perform the next time based on the dew point temperature. Defrost judgment of defrost process.

Here, the air conditioner counts the execution times of the defrosting process after it is turned on, and the initial value of the count is 0; every time the air conditioner executes a defrosting process, the count is incremented by 1; Before the defrosting process, the air conditioner counts 0 for the defrosting process. At this time, the air conditioner controls the air conditioner based on the dew point temperature to determine whether to trigger the next defrosting process.

When the air conditioner shuts down at the end of this operation, the air conditioner will clear the count of the defrosting process to zero.

FIG. 2 is a schematic flowchart of a control method for defrosting an air conditioner provided by another embodiment of the present disclosure.

As shown in FIG. 2 , an embodiment of the present disclosure provides a control method for defrosting an air conditioner. The process defined by the control method is performed after the air conditioner has completed a certain defrosting process; specifically, it includes:

S201. Obtain the exhaust temperature of the compressor and the working current of the air conditioner before the air conditioner executes the defrosting process;

After the air conditioner is turned on and running, the sensor detects the real-time exhaust temperature and saves it as historical data, so that the exhaust temperature before the defrosting process can be determined by calling the historical data of the temperature detected by the sensor;

After the air conditioner is turned on and running, the working current of the air conditioner at different times is saved as historical data at the same time, so that the working current of the air conditioner before the defrosting process can be determined by calling the historical data of the working current;

S202, based on the parameter combination and the preset association relationship, matching to obtain a temperature correction value corresponding to the parameter combination;

In the embodiment of the present disclosure, the association relationship is configured to represent the corresponding relationship between one or more parameter combinations and temperature correction values; the parameter combinations at least include a temperature range in which the exhaust gas temperature is located and a current range in which the operating current is located.

Exemplarily, Table 1 shows the corresponding relationship between an optional parameter combination and the temperature correction value.

parameter combination Temperature correction value (unit: °C) T<60℃ and i<I1 -1 60℃＜T≤80℃ and I1＜i＜I2 0 80℃＜T and i＞I2 1

Table 1

Among them, T is the exhaust temperature of the compressor, and i is the working current of the air conditioner. In step S202, the air conditioner can search and match the temperature correction value of the corresponding parameter combination through the table.

The correlation is a value calculated and determined by experiments before the air conditioner leaves the factory, and is pre-stored in control devices such as the computer board and processor of the air conditioner.

S203, correcting the frost point temperature based on the temperature correction value obtained by matching;

In the embodiment of the present disclosure, in step S203, the sum of the frost point temperature and the temperature correction value is calculated to obtain the corrected frost point temperature.

S204 , based on the corrected frost point temperature, control the air conditioner to perform a defrosting judgment on whether to trigger the next defrosting process.

In this embodiment of the present disclosure, for the specific execution process of step S204, reference may be made to the foregoing embodiments, which will not be repeated here.

The defrosting control method for an air conditioner disclosed in the embodiments of the present disclosure searches for a temperature correction value that matches a corresponding parameter combination through a preset association relationship, and then corrects the frost point temperature according to the temperature correction value. The exhaust temperature and working current can be combined to reflect the influence of the outdoor environment on the operating state of the air conditioner, so it will also affect the degree of frost formation. In this way, the exhaust temperature and working current of the compressor are comprehensively considered to make it easier to trigger The next defrosting process, in this way, makes the air conditioner more accurately trigger the defrosting process that adapts to the current working condition.

FIG. 3 is a schematic flowchart of a control method for defrosting an air conditioner provided by another embodiment of the present disclosure.

As shown in FIG. 3 , an embodiment of the present disclosure provides a control method for defrosting an air conditioner. The process defined by the control method is performed after the air conditioner has completed a certain defrosting process; specifically, it includes:

S301. Obtain the exhaust temperature of the compressor before the air conditioner executes the defrosting process;

After the air conditioner is turned on and running, the sensor detects the real-time exhaust temperature and saves it as historical data, so that the exhaust temperature before the defrosting process can be determined by calling the historical data of the temperature detected by the sensor;

S302, based on the temperature interval in which the exhaust gas temperature of the compressor is located and a preset correlation relationship, matching to obtain a temperature correction value corresponding to the parameter combination;

In the embodiment of the present disclosure, the association relationship is configured to represent the corresponding relationship between one or more temperature intervals and the temperature correction value; in the preset association relationship, when the temperature interval is the first temperature interval, the temperature correction value is a negative value; When the temperature interval is the second temperature interval, the temperature correction value is zero; when the temperature interval is the third temperature interval, the temperature correction value is a positive value; the second temperature interval is greater than the first temperature interval and smaller than the third temperature interval.

Exemplarily, Table 2 shows a corresponding relationship between an optional temperature interval and a temperature correction value.

Temperature range (unit: °C) Temperature correction value (unit: °C) T＜60℃ -1 60℃＜T≤80℃ 0 80℃＜T 1

Table 2

Among them, T is the discharge temperature of the compressor. In step S302, the air conditioner can search and match the temperature correction value corresponding to the temperature interval through the table.

The relationship is a value calculated and determined by experiments before the air conditioner leaves the factory, and is pre-stored in the control devices such as the computer board and the processor of the air conditioner.

S303, correcting the frost point temperature based on the temperature correction value obtained by matching;

In the embodiment of the present disclosure, in step S303, the sum of the frost point temperature and the temperature correction value is calculated to obtain the corrected frost point temperature.

S304. Based on the corrected frost point temperature, control the air conditioner to perform a defrosting judgment on whether to trigger the next defrosting process.

In this embodiment of the present disclosure, for the specific execution process of step S304, reference may be made to the foregoing embodiments, which will not be repeated here.

The air conditioner defrosting control method disclosed in the embodiments of the present disclosure searches for a temperature correction value that matches the exhaust gas temperature through a preset association relationship, and then corrects the frost point temperature according to the temperature correction value. Here, the exhaust gas temperature It can reflect the influence of the outdoor environment on the operating state of the air conditioner, so it will also affect the degree of frosting. In this way, the exhaust temperature of the compressor is used to correct the frost point temperature, so that the air conditioner can more accurately trigger the removal of the current operating conditions. frost process.

FIG. 4 is a schematic flowchart of a control method for defrosting an air conditioner provided by another embodiment of the present disclosure.

As shown in FIG. 4 , an embodiment of the present disclosure provides a control method for defrosting an air conditioner, and the process defined by the control method is performed after the air conditioner has completed a certain defrosting process; specifically, it includes:

S401, obtaining the working current of the air conditioner before the air conditioner executes the defrosting process;

After the air conditioner is turned on and running, the working current of the air conditioner at different times is saved as historical data at the same time, so that the working current of the air conditioner before the defrosting process can be determined by calling the historical data of the working current;

S402, based on the current interval in which the working current is located and the preset correlation relationship, matching to obtain a temperature correction value corresponding to the current interval;

In the embodiment of the present disclosure, the association relationship is configured to represent the corresponding relationship between one or more current intervals and the temperature correction value; in the preset association relationship, when the current interval is the first current interval, the temperature correction value is a negative value; When the current interval is the second current interval, the temperature correction value is zero; when the current interval is the third current interval, the temperature correction value is a positive value; the second current interval is greater than the first current interval and smaller than the third current interval.

Exemplarily, Table 3 shows a corresponding relationship between an optional current interval and a temperature correction value.

Current interval Temperature correction value (unit: °C) i＜I1 -1 I1＜i＜I2 0 i>I2 1

table 3

Among them, i is the working current of the air conditioner. In step S402, the air conditioner can search and match the temperature correction value corresponding to the current interval through the table.

The correlation is a value calculated and determined by experiments before the air conditioner leaves the factory, and is pre-stored in control devices such as the computer board and processor of the air conditioner.

S403, correcting the frost point temperature based on the temperature correction value obtained by matching;

In the embodiment of the present disclosure, in step S403, the sum of the frost point temperature and the temperature correction value is calculated to obtain the corrected frost point temperature.

S404 , based on the corrected frost point temperature, control the air conditioner to perform a defrosting judgment on whether to trigger the next defrosting process.

In this embodiment of the present disclosure, for the specific execution process of step S404, reference may be made to the foregoing embodiments, which will not be repeated here.

The defrosting control method for an air conditioner disclosed in the embodiments of the present disclosure searches for a temperature correction value that matches the corresponding operating current through a preset association relationship, and then corrects the frost point temperature according to the temperature correction value. Here, the air conditioner operating current can Combined with reflecting the influence of the outdoor environment on the operating state of the air conditioner, it will also affect the degree of frost formation. In this way, the working current is applied to the correction of the frost point temperature, so that the air conditioner can more accurately trigger the defrosting process that adapts to the current working condition.

FIG. 5 is a schematic structural diagram of a control device for defrosting an air conditioner provided by an embodiment of the present disclosure.

As shown in FIG. 5 , an embodiment of the present disclosure provides a control device 5 for defrosting an air conditioner, which is applied to an air conditioner and can control the air conditioner to execute the control process shown in the foregoing embodiments. The control device 5 includes:

The first obtaining module 51 is configured to: obtain the power parameter of the air conditioner associated with the current heat exchange power;

The temperature correction module 52 is configured to: correct the frost point temperature based on the power parameter associated with the current heat exchange power;

The defrosting determination module 53 is configured to: based on the corrected frost point temperature, control the air conditioner to perform a defrosting determination of whether to trigger the next defrosting process.

In some optional embodiments, the first obtaining module 51 is configured to:

Obtain the discharge temperature of the compressor and/or the working current of the air conditioner before the air conditioner executes the defrosting process.

In some optional embodiments, the temperature correction module 52 is configured to:

Based on the parameter combination and the preset first correlation relationship, the temperature correction value corresponding to the parameter combination is obtained by matching; wherein, the first correlation relationship is configured to represent the corresponding relationship between one or more parameter combinations and the temperature correction value; the parameter combination at least includes a row The temperature range where the gas temperature is located and the current range where the working current is located;

The frost point temperature is corrected based on the matching temperature correction value.

In some optional embodiments, the temperature correction module 52 is configured to:

Based on the temperature interval in which the exhaust gas temperature of the compressor is located and a preset second correlation relationship, a temperature correction value corresponding to the temperature interval is obtained by matching; wherein, the second correlation relationship is configured to represent one or more temperature intervals and the temperature correction value the corresponding relationship;

The frost point temperature is corrected based on the matching temperature correction value.

In some optional embodiments, the temperature correction module 52 is configured to:

Based on the current interval in which the working current is located and a preset third correlation relationship, the temperature correction value corresponding to the current interval is obtained by matching; wherein, the third correlation relationship is configured to represent the corresponding relationship between one or more current intervals and the temperature correction value;

The frost point temperature is corrected based on the matching temperature correction value.

In some optional embodiments, the temperature correction module 52 is configured to calculate the sum of the frost point temperature and the temperature correction value to obtain the corrected frost point temperature.

In some optional embodiments, the control device further includes a second obtaining module 54, configured to: obtain the outdoor coil temperature of the air conditioner;

The defrost judgment module 53 is configured to:

When the outdoor coil temperature is lower than the corrected frost point temperature, it is determined that the air conditioner triggers the next defrosting process;

When the temperature of the outdoor coil is greater than or equal to the corrected frost point temperature, it is determined that the air conditioner does not trigger the next defrosting process.

In some optional embodiments, the control device 5 further includes:

The third obtaining module 55 is configured to: obtain the outdoor ambient temperature where the air conditioner is located;

The calculation module 56 is configured to: calculate the dew point temperature according to the dew point calculation formula, and use the dew point temperature as the frost point temperature to be corrected.

In some optional embodiments, the control device 5 further includes a fourth obtaining module 57, which is configured to: obtain the execution times of the defrosting process of the air conditioner after the current startup of the air conditioner;

The defrosting determination module is further configured to: control the air conditioner to perform a defrosting determination of whether to trigger the next defrosting process based on the dew point temperature when the number of executions of the defrosting process is zero.

For the specific execution manner of the control procedure of the control device of the present application for controlling the air conditioner to be executed, reference may be made to the corresponding part of the embodiment of the foregoing control method, which will not be repeated here.

Embodiments of the present disclosure also provide an air conditioner, which includes and the control device provided in the foregoing embodiments.

Embodiments of the present disclosure further provide a computer-readable storage medium storing computer-executable instructions, where the computer-executable instructions are configured to execute the air conditioner defrosting control method provided in the foregoing embodiments.

Embodiments of the present disclosure also provide a computer program product, where the computer program product includes a computer program stored on a computer-readable storage medium, and the computer program includes program instructions that, when executed by a computer, cause the program instructions to The computer executes the control method for air conditioner defrosting provided in the above embodiments.

The above-mentioned computer-readable storage medium may be a transient computer-readable storage medium, and may also be a non-transitory computer-readable storage medium.

An embodiment of the present disclosure also provides an electronic device, the structure of which is shown in FIG. 6 , and the electronic device includes:

At least one processor (processor) 600 , a processor 600 is taken as an example in FIG. 6 ; and a memory (memory) 601 , which may also include a communication interface (Communication Interface) 602 and a bus 603 . The processor 600 , the communication interface 602 , and the memory 601 can communicate with each other through the bus 603 . Communication interface 602 may be used for information transfer. The processor 600 may invoke the logic instructions in the memory 601 to execute the control method for air conditioner defrosting provided in the above embodiments.

In addition, the above-mentioned logic instructions in the memory 601 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

As a computer-readable storage medium, the memory 601 can be used to store software programs and computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 600 executes functional applications and data processing by running the software programs, instructions and modules stored in the memory 601 , that is, to implement the air conditioner defrosting control method in the above method embodiments.

The memory 601 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 601 may include high-speed random access memory, and may also include non-volatile memory.

The technical solutions of the embodiments of the present disclosure may be embodied in the form of software products. The computer software products are stored in a storage medium and include one or more instructions to enable a computer device (which may be a personal computer, a server, or a network equipment, etc.) to execute all or part of the steps of the methods described in the embodiments of the present disclosure. The aforementioned storage medium may be a non-transitory storage medium, including: U disk, removable hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk, etc. A medium that can store program codes, and can also be a transient storage medium.

The foregoing description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process, and other changes. The examples are only representative of possible variations. Unless expressly required, individual components and functions are optional and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of the disclosed embodiments includes the full scope of the claims, along with all available equivalents of the claims. When 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, without changing the meaning of the description, a first element could be termed a second element, and similarly, a second element could be termed a first element, so long as all occurrences of "the first element" were consistently renamed and all occurrences of "the first element" were named consistently The "second element" can be renamed consistently. The first element and the second element are both elements, but may not be the same element. Also, the terms used in this application are used to describe the embodiments only and not to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a" (a), "an" (an) and "the" (the) are intended to include the plural forms as well, unless the context clearly dictates otherwise. . Similarly, the term "and/or" as used in this application is meant to include any and all possible combinations of one or more of the associated listings. Additionally, as used in this application, the term "comprise" and its variants "comprises" and/or including (comprising), etc., refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, or device that includes the element. Herein, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, reference may be made to the description of the method section for relevant parts.

Those skilled in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. Skilled artisans may use different methods for implementing the described functionality for each particular application, but such implementations should not be considered beyond the scope of the disclosed embodiments. The skilled person can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units can refer to the corresponding processes in the foregoing method embodiments, and details are not repeated here.

In the embodiments disclosed herein, the disclosed methods and products (including but not limited to apparatuses, devices, etc.) may be implemented in other ways. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units may only be a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be combined Either it can be integrated into another system, or some features can be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. This embodiment may be implemented by selecting some or all of the units according to actual needs. In addition, each functional unit in the embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be 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 that contains one or more functions for implementing the specified logical function(s) executable instructions. In some alternative implementations, the functions noted in the blocks may occur out of the order noted in the figures. For example, two blocks 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 in special purpose hardware-based systems that perform the specified functions or actions, or special purpose hardware implemented in combination with computer instructions.

Claims (10)

1. A control method for defrosting of an air conditioner is characterized by comprising the following steps:

obtaining a power parameter of the air conditioner, wherein the power parameter is related to the current heat exchange power, and the power parameter comprises: the air conditioner performs the air discharge temperature of a compressor before the defrosting process and/or the working current of the air conditioner;

matching to obtain a temperature correction value corresponding to a parameter combination based on a preset first incidence relation and the parameter combination of a temperature interval where the exhaust temperature of the compressor is located and a current interval where the working current of the air conditioner is located; in the first association relationship, when the temperature interval is a first temperature interval and the current interval is a first current interval, the temperature correction value is a negative value; when the temperature interval is a second temperature interval and the current interval is a second current interval, the temperature correction value is zero; when the temperature interval is a third temperature interval and the current interval is a third current interval, the temperature correction value is a positive value; or,

matching to obtain a temperature correction value corresponding to the temperature interval based on the temperature interval where the exhaust temperature of the compressor is located and a preset second incidence relation; in the second 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; or,

matching to obtain a temperature correction value corresponding to a current interval based on the current interval where the working current of the air conditioner is located and a preset third correlation; in the third correlation, when the current interval is the first current interval, the temperature correction value is a negative value; when the current interval is a second current interval, the temperature correction value is zero; when the current interval is a third current interval, the temperature correction value is a positive value;

wherein, the second temperature interval is greater than the first temperature interval and less than the third temperature interval; the second current interval is larger than the first current interval and smaller than the third current interval;

correcting the frost point temperature based on the temperature correction value obtained by matching;

and controlling the air conditioner to perform defrosting judgment on whether to trigger the next defrosting process or not based on the corrected frost point temperature.

2. The control method according to claim 1,

the first correlation is configured to characterize a correspondence of one or more of the parameter combinations to temperature correction values.

3. The control method according to claim 1,

the second correlation is configured to represent a correspondence between one or more temperature intervals and temperature correction values.

4. The control method according to claim 1,

the third correlation is configured to represent a correspondence of one or more of the current intervals to a temperature correction value.

5. The control method according to any one of claims 1 to 4, wherein the correcting a 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.

6. 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.

7. The control method according to claim 1, wherein before correcting the frost point temperature based on the power parameter of the current heat exchange power, 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.

8. The control method according to claim 7, 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.

9. A control device for defrosting of an air conditioner, comprising:

a first acquisition module configured to: acquiring a power parameter of the air conditioner, wherein the power parameter is related to the current heat exchange power and comprises the following steps: the air conditioner performs the air discharge temperature of a compressor before the defrosting process and/or the working current of the air conditioner;

a temperature modification module configured to: matching to obtain a temperature correction value corresponding to a parameter combination based on a preset first incidence relation and the parameter combination of a temperature interval where the exhaust temperature of the compressor is located and a current interval where the working current of the air conditioner is located; in the first association relationship, when the temperature interval is a first temperature interval and the current interval is a first current interval, the temperature correction value is a negative value; when the temperature interval is a second temperature interval and the current interval is a second current interval, the temperature correction value is zero; when the temperature interval is a third temperature interval and the current interval is a third current interval, the temperature correction value is a positive value; or,

is configured to: matching to obtain a temperature correction value corresponding to the temperature interval based on the temperature interval where the exhaust temperature of the compressor is located and a preset second incidence relation; in the second association relationship, when the temperature interval is the 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; or,

is configured to: matching to obtain a temperature correction value corresponding to the current interval based on the current interval where the working current of the air conditioner is located and a preset third correlation; in the third correlation, when the current interval is the first current interval, the temperature correction value is a negative value; when the current interval is a second current interval, the temperature correction value is zero; when the current interval is a third current interval, the temperature correction value is a positive value;

wherein, the second temperature interval is greater than the first temperature interval and less than the third temperature interval; the second current interval is larger than the first current interval and smaller than the third current interval;

and is configured to: correcting the frost point temperature based on the temperature correction value obtained by matching;

a defrost determination module configured to: and controlling the air conditioner to perform defrosting judgment on whether to trigger the next defrosting process or not based on the corrected frost point temperature.

10. An air conditioner characterized by comprising the control device according to claim 9.

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