CN117308317A

CN117308317A - Method, apparatus, air conditioner, and computer-readable storage medium for controlling air conditioner

Info

Publication number: CN117308317A
Application number: CN202311424347.4A
Authority: CN
Inventors: 王飞; 孙萍; 代传民; 栗江涛
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Smart Technology R&D Co Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Smart Technology R&D Co Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2023-10-30
Filing date: 2023-10-30
Publication date: 2023-12-29

Abstract

The application relates to the technical field of air conditioners, and discloses a method for controlling an air conditioner, wherein the air conditioner comprises the following steps: a heating part arranged at the air return side of the compressor; the method comprises the following steps: controlling the heating part to start in response to the defrosting instruction; controlling the electronic expansion valve to increase the opening to the target defrosting opening under the condition that the operation time of the heating part reaches the target preheating time; wherein the target defrost opening is less than the full opening. Thus, the electronic expansion valve has a certain throttling effect, and compared with the full-opening degree, the electronic expansion valve has less influence on heating efficiency. Meanwhile, the circulation quantity of the refrigerant in the defrosting process is improved by starting the heating part, so that the defrosting effect is ensured. Thereby reducing adverse effects on heating efficiency while realizing defrosting effect. The technical effect of the method is described. The application also discloses an apparatus for controlling an air conditioner, and a computer readable storage medium.

Description

Method, apparatus, air conditioner, and computer-readable storage medium for controlling air conditioner

Technical Field

The present application relates to the field of air conditioning technology, for example, to a method, an apparatus, an air conditioner, and a computer readable storage medium for controlling an air conditioner.

Background

In the heating process in the low-temperature environment, the heat exchanger of the outdoor unit is easy to frost along with the reduction of the outdoor environment temperature. The frosted outdoor unit has poor heat exchange effect, so that the heating output capacity of the indoor room is reduced, and the air conditioner is generally switched to a refrigeration mode at the moment to realize frosting of the outdoor heat exchanger. However, the outdoor heat exchanger operates the defrosting process in the refrigerating mode, so that the indoor environment temperature is greatly reduced, and the influence on the comfort of the room is great.

There is provided a method for controlling defrosting of an air conditioner in the related art, including: when the air conditioner operates in a heating mode, obtaining temperature parameters of an outdoor heat exchanger of the air conditioner; when the temperature parameter meets the frosting condition, a throttling device between the outdoor heat exchanger and the indoor heat exchanger is controlled to be opened to the maximum opening degree so as to defrost the outdoor heat exchanger.

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 related art does not need an air conditioner operation refrigeration mode, so that the influence on the indoor temperature is greatly reduced. However, after the refrigerant circulation process has no throttling effect, the heating efficiency can be reduced, and the indoor temperature regulation process is influenced, so that the comfort of the indoor environment is reduced.

It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

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 as a prelude to the more detailed description that follows.

Embodiments of the present disclosure provide a method, apparatus, air conditioner, and computer-readable storage medium for controlling an air conditioner to reduce adverse effects on heating efficiency while achieving defrosting effects.

In some embodiments, an air conditioner includes: a heating portion disposed on a return air side of the compressor, the method comprising: controlling the heating part to start in response to the defrosting instruction; controlling the electronic expansion valve to increase the opening to the target defrosting opening under the condition that the operation time of the heating part reaches the target preheating time; wherein the target defrost opening is less than the full opening.

Optionally, the determining manner of the target preheating duration includes: obtaining the temperature of a coil pipe of an outdoor unit; and determining the target preheating duration according to the temperature of the coil pipe of the outdoor unit.

Optionally, determining the target preheating duration according to the outdoor unit coil temperature includes: calculating the decay rate of the temperature of the coil of the outdoor unit according to the temperature of the coil of the outdoor unit; and determining the target preheating duration according to the decay rate of the temperature of the coil pipe of the outdoor unit.

Optionally, determining the target preset duration according to the decay rate of the outdoor unit coil temperature includes: under the condition that the attenuation rate is larger than a first rate threshold value, determining the target preheating duration as a first duration; under the condition that the attenuation rate is smaller than or equal to the first rate threshold value, determining the target preheating duration as a second duration; wherein the first time period is longer than the second time period.

Optionally, determining the target preset duration according to the decay rate of the outdoor unit coil temperature includes: under the condition that the attenuation rate is larger than a first rate threshold value, determining the target preheating duration as a first duration; determining the target preheating duration to be a third duration under the condition that the attenuation rate is smaller than or equal to the first rate threshold and larger than the second rate threshold; under the condition that the attenuation rate is smaller than or equal to the second rate threshold value, determining the target preheating duration to be a fourth duration; wherein the first time period is longer than the third time period, and the third time period is longer than the fourth time period.

Optionally, the determining manner of the target defrosting opening degree includes: obtaining the temperature of a coil pipe of an outdoor unit; calculating the decay rate of the temperature of the coil of the outdoor unit according to the temperature of the coil of the outdoor unit; and determining the target defrosting opening according to the decay rate of the temperature of the coil pipe of the outdoor unit.

Optionally, determining the target defrosting opening according to the decay rate of the outdoor unit coil temperature includes: determining the target defrosting opening degree as a first opening degree under the condition that the attenuation rate is larger than a third rate threshold value; determining the target defrosting opening degree as a second opening degree under the condition that the attenuation rate is smaller than or equal to a third rate threshold value; wherein the first opening is smaller than the second opening.

Optionally, determining the target defrosting opening according to the decay rate of the outdoor unit coil temperature includes: determining the target defrosting opening degree as a first opening degree under the condition that the attenuation rate is larger than a third rate threshold value; determining the target defrosting opening degree as a third opening degree under the condition that the attenuation rate is smaller than or equal to a third rate threshold value and larger than a fourth attenuation rate; determining the target attenuation rate as a fourth opening degree under the condition that the attenuation rate is smaller than or equal to the fourth attenuation rate; wherein the first opening is smaller than the third opening, and the third opening is smaller than the fourth opening.

Optionally, controlling the heating portion to start includes: obtaining the attenuation rate of the temperature of the coil pipe of the outdoor unit; determining a heating power from the decay rate; and controlling the operation of the heating part according to the heating power.

Optionally, determining the heating power according to the decay rate includes: determining the heating power as the first power if the decay rate is greater than a fifth rate threshold; determining the heating power to be a second power if the decay rate is less than or equal to a fifth rate threshold; wherein the first power is higher than the second power.

Optionally, the determining manner of the defrosting instruction includes: after the compressor is continuously operated for a preset operation time, obtaining the outdoor environment temperature and the outdoor unit coil temperature; and generating a defrosting instruction when the outdoor environment temperature is in a set temperature range and the outdoor coil temperature reaches a set coil temperature threshold.

In some embodiments, the apparatus includes a processor and a memory storing program instructions, the processor being configured to perform the above-described method for controlling an air conditioner when the program instructions are executed.

In some embodiments, the air conditioner includes: an air conditioner body; the device for controlling the air conditioner is arranged on the air conditioner body; the air conditioner body comprises a heating part and is arranged on the air return side of the compressor.

In some embodiments, the computer readable storage medium stores program instructions that, when executed, cause a computer to perform the above-described method for controlling an air conditioner.

The method, the device, the air conditioner and the computer readable storage medium for controlling the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:

when defrosting is needed, the heating part on the air return side of the compressor is controlled to start, after the heating part preheats the target preheating time, the electronic expansion valve is controlled to increase the opening degree to defrost, and the opening degree of the electronic expansion valve is smaller than the full-opening degree. Thus, the electronic expansion valve has a certain throttling effect, and compared with the full-opening degree, the electronic expansion valve has less influence on heating efficiency. Meanwhile, the circulation quantity of the refrigerant in the defrosting process is improved by starting the heating part, so that the defrosting effect is ensured. Thereby reducing adverse effects on heating efficiency while realizing defrosting effect.

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 and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

fig. 1 is a schematic view of a method for controlling an air conditioner provided in an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

FIG. 5 is a schematic view of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

FIG. 6 is a schematic view of an apparatus for controlling an air conditioner provided in an embodiment of the present disclosure;

fig. 7 is a schematic view of an air conditioner provided in an embodiment of the present disclosure.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. 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 still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

The term "corresponding" may refer to an association or binding relationship, and the correspondence between a and B refers to an association or binding relationship between a and B.

After the throttling device is opened to the maximum opening degree, the refrigerant does not have throttling effect, the refrigerant coming out of the indoor heat exchanger directly enters the indoor heat exchanger, and the refrigerant raises the temperature of the outdoor heat exchanger, so that frost on the surface of the outdoor heat exchanger is removed.

The defrosting mode does not need an air conditioner operation refrigeration mode, and the influence on the indoor temperature is greatly reduced. However, after the refrigerant circulation process has no throttling effect, the heating efficiency can be reduced, the indoor temperature regulation process is affected, and the comfort is reduced. In addition, noise increases during operation, which also affects user experience.

In order to solve the above problems, an embodiment of the present disclosure provides an air conditioner, including a heating portion disposed on a compressor air return side, and controlled to start, to heat the compressor air return side, so as to gasify a liquid refrigerant and increase a refrigerant circulation amount of a system.

Referring to fig. 1, an embodiment of the present disclosure provides a method for controlling an air conditioner, which is applied to the air conditioner described above. The method for controlling an air conditioner includes:

s101, the processor responds to the defrosting instruction to control the heating part to start.

S102, when the operation time of the heating part reaches the target preheating time, the processor controls the electronic expansion valve to increase the opening to the target defrosting opening. Wherein the target defrost opening is less than the full opening.

By adopting the method for controlling the air conditioner provided by the embodiment of the disclosure, under the condition that defrosting is required, the heating part on the air return side of the compressor is controlled to be started, after the heating part is preheated for the target preheating time, the electronic expansion valve is controlled to increase the opening degree to defrost, and the opening degree of the electronic expansion valve is smaller than the full-opening degree. Thus, the electronic expansion valve has a certain throttling effect, and compared with the full-opening degree, the electronic expansion valve has less influence on heating efficiency. Meanwhile, the circulation quantity of the refrigerant in the defrosting process is improved by starting the heating part, so that the defrosting effect is ensured. That is, the full-open electronic expansion valve is not required, and the defrosting effect which is the same as or at least similar to that of the full-open electronic expansion valve can be achieved. Thereby reducing adverse effects on heating efficiency while realizing defrosting effect.

The defrosting instruction may be an instruction directly input by a user. Specifically, the user directly inputs instructions through keys, an interactive screen, an intelligent terminal, and the like. In other embodiments, the defrost instruction may be automatically determined based on operational data of the air conditioner. For example, the defrosting instruction is automatically generated when the air conditioner operation time reaches the set time. The set duration may be set directly or analyzed from historical frosting data. Or the temperature of the coil pipe of the outdoor unit is compared and judged with a set temperature threshold value. In other embodiments, the defrost instruction may be automatically determined based on the environmental parameters in which the air conditioner is located. For example, in case the outdoor ambient temperature is lower than the set temperature, i.e. the defrosting command is automatically generated.

Optionally, the target preheating duration is in the range of 2min and 5min.

As shown in connection with fig. 2, an embodiment of the present disclosure provides another method for controlling an air conditioner, including:

s201, the processor responds to the defrosting instruction to obtain the coil temperature of the outdoor unit.

S202, the processor determines target preheating duration according to the temperature of the coil of the outdoor unit.

S203, the processor controls the heating part to start.

S204, when the operation time of the heating part reaches the target preheating time, the processor controls the electronic expansion valve to increase the opening degree to the target defrosting opening degree. Wherein the target defrost opening is less than the full opening.

The temperature of the coil pipe of the outdoor unit can reflect frosting, and the more accurate target preheating time length can be determined according to the temperature of the coil pipe of the outdoor unit, so that the control of the preheating process before defrosting is realized, and the defrosting effect is optimized.

Alternatively, the outdoor coil temperature may be an outdoor coil temperature within a set time interval, for example, an outdoor coil temperature within 15 to 20 minutes of continuous operation of the compressor.

Optionally, the processor determines the target preheating duration according to the outdoor unit coil temperature, including: the processor determines the target warm-up period to be a first period of time if the outdoor unit coil temperature is less than a first temperature threshold. The processor determines the target warm-up period to be a second period of time if the outdoor unit coil temperature is greater than or equal to a second temperature threshold. Wherein the first time period is longer than the second time period. The lower the temperature of the coil pipe of the outdoor unit is, the more serious the frosting condition is, and the longer preheating time is set at the moment, so that more liquid refrigerant can be heated into gaseous refrigerant, and the defrosting effect is optimized. In other embodiments, according to the actual requirement, more temperature thresholds may be set, so as to divide the temperature of the coil of the outdoor unit more finely, and determine different target preheating durations, thereby improving the accuracy of the target preheating durations.

Optionally, the processor determines the target preheating duration according to the outdoor unit coil temperature, including: the processor calculates the decay rate of the outdoor unit coil temperature according to the outdoor unit coil temperature, and determines the target preheating duration according to the decay rate of the outdoor unit coil temperature. The current frosting degree can be accurately reflected through the attenuation rate of the temperature of the coil pipe of the outdoor unit, so that more accurate target preheating duration can be determined.

Optionally, the processor calculates a decay rate of the outdoor unit coil temperature based on the outdoor unit coil temperature, comprising: the processor calculates the corresponding attenuation rate of the unit time according to the change of the temperature of the coil pipe of the outdoor unit in each unit time, compares the obtained attenuation rates, and takes the maximum attenuation rate as the attenuation rate of the temperature of the coil pipe of the outdoor unit for subsequent processing and judging processes.

Optionally, the processor determines the target preset duration according to a decay rate of the outdoor unit coil temperature, including: the processor determines the target preheating duration to be a first duration in the case that the decay rate is greater than a first rate threshold; the processor determines the target warm-up duration to be a second duration in the event that the decay rate is less than or equal to the first rate threshold; wherein the first time period is longer than the second time period. The larger the decay rate of the temperature of the coil pipe of the outdoor unit is, the faster the temperature of the coil pipe of the outdoor unit is reduced, and the more serious the frosting condition of the outdoor unit is, so that the preheating needs longer time to be carried out, thereby improving the refrigerant circulation quantity in the system and optimizing the defrosting effect.

In other embodiments, a more rate threshold may be set to further refine and differentiate the attenuation rate, and different target preset durations are correspondingly set, so that the target preset durations are more consistent with the current actual situation, so as to improve accuracy of the target preset durations.

For example: the processor determines a target preset duration according to the decay rate of the temperature of the coil of the outdoor unit, and the method comprises the following steps: the processor determines the target preheating duration to be a first duration in the case that the decay rate is greater than a first rate threshold; the processor determines the target warm-up duration to be a third duration in the event that the decay rate is less than or equal to the first rate threshold and greater than the second rate threshold; the processor determines that the target preheating duration is a fourth duration in the case that the decay rate is less than or equal to the second rate threshold; wherein the first time period is longer than the third time period, and the third time period is longer than the fourth time period.

By way of example, the first rate threshold is 3 ℃/min and the second rate threshold is 2 ℃/min. The first time period is 5min, the second time period is 3min, and the third time period is 2min. Namely: in the case where the decay rate is greater than 3 ℃/min, the processor determines the target warm-up period to be 5min. In the case where the decay rate is less than or equal to 3 ℃/min and greater than 2 ℃/min, the processor determines the target warm-up period to be 3min. And under the condition that the attenuation rate is less than or equal to 2 ℃/min, the processor determines that the target preset duration is 2min. As shown in connection with fig. 3, an embodiment of the present disclosure provides another method for controlling an air conditioner, including:

s301, the processor responds to the defrosting instruction to obtain the coil temperature of the outdoor unit.

S302, the processor calculates the decay rate of the outdoor unit coil temperature according to the outdoor unit coil temperature.

S303, the processor determines a target defrosting opening according to the decay rate of the temperature of the coil of the outdoor unit.

S304, the processor controls the heating part to start.

S305, when the operation duration of the heating portion reaches the target warm-up duration, the processor controls the electronic expansion valve to increase the opening degree to the target defrost opening degree. Wherein the target defrost opening is less than the full opening.

The frosting degree can be determined through the attenuation rate of the temperature of the coil pipe of the outdoor unit, the target defrosting opening degree can be determined according to the attenuation rate, the defrosting process can be controlled according to the actual defrosting requirement, the accuracy of defrosting operation is guaranteed, and the defrosting effect is optimized.

Optionally, the processor calculates a decay rate of the outdoor unit coil temperature based on the outdoor unit coil temperature, comprising: in the case where the decay rate is greater than the third rate threshold, the processor determines the target defrost opening as the first opening. In the case where the decay rate is less than or equal to the third rate threshold, the processor determines the target defrost opening as the second opening. Wherein the first opening is smaller than the second opening.

Optionally, the processor determines the target defrosting opening according to a decay rate of the outdoor unit coil temperature, including: in the case where the decay rate is greater than the third rate threshold, the processor determines the target defrost opening as the first opening. The processor determines the target defrost opening as a third opening in the case where the decay rate is less than or equal to the third rate threshold and greater than the fourth decay rate. In the case where the decay rate is less than or equal to the fourth decay rate, the processor determines that the target decay rate is the fourth opening. Wherein the first opening is smaller than the third opening, and the third opening is smaller than the fourth opening.

As an example, the third rate threshold is 3 ℃/min and the fourth rate threshold is 2 ℃/min. The first opening degree is 480, the third opening degree is 430, and the fourth opening degree is 390. Namely: in the case where the decay rate is greater than 3 ℃/min, the processor determines that the target defrost opening is 480. In the case where the decay rate is less than or equal to 3 ℃/min and greater than 2 ℃/min, the processor determines the target defrost opening as 430. In the event that the decay rate is less than or equal to 2 ℃/min, the processor determines that the target decay rate is 390.

As shown in connection with fig. 4, an embodiment of the present disclosure provides another method for controlling an air conditioner, including:

s401, the processor responds to the defrosting instruction to obtain the decay rate of the temperature of the coil of the outdoor unit.

S402, the processor determines heating power according to the decay rate.

S403, the processor controls the operation of the heating unit according to the heating power.

S404, when the operation duration of the heating portion reaches the target warm-up duration, the processor controls the electronic expansion valve to increase the opening degree to the target defrost opening degree. Wherein the target defrost opening is less than the full opening.

Therefore, the frosting condition of the outdoor unit can be determined through the decay rate of the temperature of the coil pipe of the outdoor unit, and the heating power of the heating part is determined according to the frosting condition, so that the operation of the heating part can be more in line with the actual defrosting requirement, and the defrosting effect is ensured.

In application, the heating power can be set by way of a gear. For example, to a high gear and a low gear; high, medium, low; first gear, second gear, third gear, fourth gear, etc. And carrying out range division on the attenuation rate according to the set gear number so as to establish a mapping relation between the attenuation rate and the heating rate.

Optionally, the processor determines the heating power according to the decay rate, comprising: the processor determines the heating power to be the first power if the decay rate is greater than a fifth rate threshold. In the event that the decay rate is less than or equal to the fifth rate threshold, the processor determines the heating power to be the second power. Wherein the first power is higher than the second power.

Optionally, the processor determines the heating power according to the decay rate, comprising: the processor determines the heating power to be the first power if the decay rate is greater than a fifth rate threshold. The processor determines the heating power to be a third power if the decay rate is less than or equal to the fifth rate threshold and greater than the sixth rate threshold. In the case where the decay rate is less than or equal to the sixth rate, the processor determines the heating power to be the fourth power. Wherein the first power is greater than the third power, and the third power is greater than the fourth power.

As an example, the fifth rate threshold is 3 ℃/min and the sixth rate threshold is 2 ℃/min. The first power corresponds to a high gear, the third power corresponds to a medium gear, and the fourth power corresponds to a low gear. Namely: and under the condition that the attenuation rate is greater than 3 ℃/min, the processor determines that the heating part operation gear is a high gear. The processor determines that the heating portion operating gear is neutral if the decay rate is less than or equal to 3 ℃/min and greater than 2 ℃/min. And under the condition that the attenuation rate is less than or equal to 2 ℃/min, the processor determines that the heating part operation gear is a low gear.

As shown in connection with fig. 5, an embodiment of the present disclosure provides another method for controlling an air conditioner, including:

s501, after the compressor is continuously operated for a preset operation time, the processor obtains the outdoor environment temperature and the outdoor unit coil temperature.

S502, when the outdoor environment temperature is in the set temperature range and the outdoor unit coil temperature reaches the set coil temperature threshold, generating a defrosting instruction.

S503, the processor controls the heating portion to be started in response to the defrosting instruction.

S504, when the operation duration of the heating portion reaches the target warm-up duration, the processor controls the electronic expansion valve to increase the opening degree to the target defrost opening degree. Wherein the target defrost opening is less than the full opening.

Optionally, the preset operation time length ranges from 15min to 25min, preferably 20min.

Alternatively, the temperature range is set to less than or equal to 10 ℃. Further, the temperature range is set to-10 ℃ to 10 ℃.

Optionally, generating the defrosting instruction when the outdoor environment temperature is within the set temperature range and the outdoor unit coil temperature reaches the set coil temperature threshold value includes: and when the outdoor environment temperature is in the set temperature range, the coil temperature of the outdoor unit reaches the set coil temperature threshold and is kept for a preset duration. Therefore, the influence of transient temperature fluctuation on the judgment result can be avoided, and the accuracy of judging the frosting condition is improved. The preset time period may be 1min.

As shown in connection with fig. 6, an embodiment of the present disclosure provides an apparatus 200 for controlling an air conditioner, including a processor (processor) 60 and a memory (memory) 61. Optionally, the apparatus 200 may also include a communication interface (Communication Interface) 62 and a bus 63. The processor 60, the communication interface 62, and the memory 61 may communicate with each other via the bus 63. The communication interface 62 may be used for information transfer. The processor 60 may call logic instructions in the memory 61 to perform the method for controlling an air conditioner of the above-described embodiment.

Further, the logic instructions in the memory 61 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product.

The memory 61 is a computer readable storage medium that may be used to store a software program, a computer executable program, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 60 performs functional applications and data processing by executing program instructions/modules stored in the memory 61, that is, implements the method for controlling an air conditioner in the above-described embodiment.

The memory 61 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for functions; the storage data area may store data created according to the use of the terminal device, etc. Further, the memory 61 may include a high-speed random access memory, and may also include a nonvolatile memory.

As shown in conjunction with fig. 7, an embodiment of the present disclosure provides an air conditioner 100, including: an air conditioner body, and the above-described device 200 for controlling an air conditioner. The apparatus 200 for controlling an air conditioner is installed at an air conditioner body. The mounting relationships described herein are not limited to being placed inside the air conditioning body, but include mounting connections with other components of the air conditioner 100, including but not limited to physical connections, electrical connections, or signal transmission connections, etc. Those skilled in the art will appreciate that the apparatus 200 for controlling an air conditioner may be adapted to a viable body of an air conditioner, thereby achieving other viable embodiments.

Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for controlling an air conditioner.

Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method according to embodiments of the present disclosure. While the aforementioned storage medium may be a non-transitory storage medium, such as: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk or an optical disk, or the like, which can store program codes.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only 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. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (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, when used in this application, the terms "comprises," "comprising," and/or "includes," and variations thereof, mean that the stated features, integers, steps, operations, elements, and/or components are present, but that the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.

Those of skill in the art will 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 depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The flowcharts 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. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims

1. A method for controlling an air conditioner, the air conditioner comprising: a heating part arranged at the air return side of the compressor; the method comprises the following steps:

controlling the heating part to start in response to the defrosting instruction;

controlling the electronic expansion valve to increase the opening to the target defrosting opening under the condition that the operation time of the heating part reaches the target preheating time;

wherein the target defrost opening is less than the full opening.

2. The method of claim 1, wherein the determining of the target warm-up period comprises:

obtaining the temperature of a coil pipe of an outdoor unit;

and determining the target preheating duration according to the temperature of the coil pipe of the outdoor unit.

3. The method of claim 2, wherein determining the target preheating period based on the outdoor unit coil temperature comprises:

calculating the decay rate of the temperature of the coil of the outdoor unit according to the temperature of the coil of the outdoor unit;

and determining the target preheating duration according to the decay rate of the temperature of the coil pipe of the outdoor unit.

4. The method of claim 3, wherein determining the target preset time period based on the decay rate of the outdoor unit coil temperature comprises:

under the condition that the attenuation rate is larger than a first rate threshold value, determining the target preheating duration as a first duration;

under the condition that the attenuation rate is smaller than or equal to the first rate threshold value, determining the target preheating duration as a second duration;

wherein the first time period is longer than the second time period.

5. The method of claim 1, wherein the manner in which the target defrost opening is determined comprises:

obtaining the temperature of a coil pipe of an outdoor unit;

and determining the target defrosting opening according to the decay rate of the temperature of the coil pipe of the outdoor unit.

6. The method of claim 5, wherein determining the target defrost opening based on the decay rate of the outdoor unit coil temperature comprises:

determining the target defrosting opening degree as a first opening degree under the condition that the attenuation rate is larger than a third rate threshold value;

determining the target defrosting opening degree as a second opening degree under the condition that the attenuation rate is smaller than or equal to a third rate threshold value;

wherein the first opening is smaller than the second opening.

7. The method of any one of claims 1 to 6, wherein the determination of the defrost instruction comprises:

after the compressor is continuously operated for a preset operation time, obtaining the outdoor environment temperature and the outdoor unit coil temperature;

and generating a defrosting instruction when the outdoor environment temperature is in a set temperature range and the outdoor coil temperature reaches a set coil temperature threshold.

8. An apparatus for controlling an air conditioner comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for controlling an air conditioner according to any one of claims 1 to 7 when the program instructions are run.

9. An air conditioner, comprising:

an air conditioner body;

the apparatus for controlling an air conditioner as claimed in claim 8, mounted to the air conditioner body;

the air conditioner body comprises a heating part and is arranged on the air return side of the compressor.

10. A computer readable storage medium storing program instructions which, when executed, are adapted to cause a computer to carry out the method for controlling an air conditioner according to any one of claims 1 to 7.