Method, apparatus, electronic device and storage medium for controlling air conditioner

Abstract

The application relates to the air conditioning technical field, and discloses a method for controlling an air conditioner, which comprises the following steps: controlling the air conditioner to perform a heating operation, so that refrigerant flows through a first condenser along a refrigerant circulation pipeline; in the case that the temperature of the first condenser is less than a first preset threshold, triggering an unloading valve to open, so that the refrigerant flows through a second condenser along the refrigerant circulation pipeline; acquiring a first temperature and a second temperature; determining whether the surface of the first condenser is frosted according to the first temperature and the second temperature; and in the case that the surface of the first condenser is frosted, controlling the air conditioner to perform a defrosting mode. In this way, whether the surface of the first condenser is frosted can be determined more accurately, so that the case that the air conditioner performs frostless defrosting in a low-temperature condition can be reduced. The application further discloses an apparatus for controlling an air conditioner, an electronic device and a storage medium.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, for example, relates to a kind of method for controlling air conditioner, device, electronic equipment and storage medium. BACKGROUND

[0002] In cold winter, air conditioner is heated by using condenser and outdoor air source heat exchange, since condenser is in heat release state in air conditioner heating, thus causing condenser temperature to be too low, and then leading to condenser frost. This will affect the heat exchange efficiency of condenser, leading to poor heating effect of air conditioner. In order to improve the heating effect of air conditioner, the prior art detects the temperature of condenser by defrost sensor, and controls air conditioner to run defrost mode when the temperature of condenser is lower than preset temperature.

[0003] 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:

[0004] In the case of low temperature of external environment, since the air humidity is low, the condenser surface will not usually frost. But at this time, the condenser temperature detected by defrost sensor is lower than preset temperature, so that air conditioner misjudges into defrost process, and false defrosting is carried out.

[0005] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0006] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor is it intended to determine key / important components or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0007] The embodiments of the present disclosure provide a kind of method for controlling air conditioner, device, electronic equipment and storage medium, to be able to reduce the case of false defrosting of air conditioner in low temperature.

[0008] In some embodiments, the air conditioner comprises an outdoor unit, the outdoor unit comprising a refrigerant circulation pipeline, the refrigerant circulation pipeline being provided with a first condenser, a second condenser and an unloading valve; the method for controlling the air conditioner comprises: controlling the air conditioner to perform a heating operation, so that the refrigerant flows through the first condenser along the refrigerant circulation pipeline; in the case that the temperature of the first condenser is less than a first preset threshold, triggering the unloading valve to open, so that the refrigerant flows through the second condenser along the refrigerant circulation pipeline; obtaining a first temperature and a second temperature; the first temperature is the temperature of the refrigerant after flowing through the first condenser, and the second temperature is the temperature of the refrigerant after flowing through the second condenser; determining whether the surface of the first condenser is frosted according to the first temperature and the second temperature; in the case that the surface of the first condenser is frosted, controlling the air conditioner to perform a defrosting mode.

[0009] In some embodiments, the temperature of the first condenser is obtained by: obtaining the temperature of the input end of the first condenser.

[0010] In some embodiments, determining whether the surface of the first condenser is frosted according to the first temperature and the second temperature comprises: obtaining a third temperature of the refrigerant before heat exchange through the first condenser; obtaining a first absolute difference between the third temperature and the first temperature; obtaining a second absolute difference between the third temperature and the second temperature; in the case that the difference between the first absolute difference and the second absolute difference is greater than a second preset threshold, determining that the surface of the first condenser is frosted; and / or, in the case that the difference between the first absolute difference and the first absolute difference is less than a third preset threshold, determining that the surface of the first condenser is not frosted.

[0011] In some embodiments, after controlling the air conditioner to perform a defrosting mode, the method further comprises: triggering the unloading valve to close.

[0012] In some embodiments, the air conditioner comprises an indoor unit and an outdoor unit, and the air conditioner comprises the outdoor unit, the outdoor unit comprising a refrigerant circulation pipeline, the refrigerant circulation pipeline being provided with a first condenser, a second condenser, and an unloading valve; the device for controlling the air conditioner comprises: a first control module configured to control the air conditioner to perform a heating operation, so that the refrigerant flows through the first condenser along the refrigerant circulation pipeline; a triggering module configured to trigger the unloading valve to open when the temperature of the first condenser is less than a first preset threshold, so that the refrigerant in the compressor flows through the second condenser along the refrigerant circulation pipeline; an acquisition module configured to acquire a first temperature and a second temperature; the first temperature is the temperature of the refrigerant after flowing through the first condenser, and the second temperature is the temperature of the refrigerant after flowing through the second condenser; a determination module configured to determine whether the surface of the first condenser is frosted according to the first temperature and the second temperature; and a second control module configured to control the air conditioner to perform a defrosting mode when the surface of the first condenser is frosted.

[0013] In some embodiments, the temperature of the first condenser is acquired by acquiring the temperature of the input end of the first condenser.

[0014] In some embodiments, the determination module is configured to determine whether the surface of the first condenser is frosted according to the first temperature and the second temperature by: acquiring a third temperature of the refrigerant before heat exchange through the first condenser; acquiring a first absolute difference between the third temperature and the first temperature; acquiring a second absolute difference between the third temperature and the second temperature; determining that the surface of the first condenser is frosted when the difference between the first absolute difference and the second absolute difference is greater than a second preset threshold; and / or determining that the surface of the first condenser is not frosted when the difference between the first absolute difference and the first absolute difference is less than a third preset threshold.

[0015] In some embodiments, the second control module is further configured to trigger the unloading valve to close.

[0016] In some embodiments, the electronic device comprises a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned method for controlling the air conditioner when running the program instructions.

[0017] In some embodiments, the storage medium stores program instructions, and the program instructions execute the above-mentioned method for controlling the air conditioner when running.

[0018] The method, device, electronic device and storage medium for controlling an air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects: by arranging a first condenser and a second condenser in an outdoor unit, in the case of air conditioner heating operation, the first condenser is first controlled to perform heat exchange, and then in the case that the temperature of the first condenser is lower than a first preset threshold, the second condenser is caused to join the heat exchange process. Since there is a large difference between the first temperature and the second temperature in the case that the first condenser is frosted, whether the first condenser is frosted can be determined by the first temperature and the second temperature, and in the case that the first condenser surface is frosted, the air conditioner is controlled to perform a defrosting mode, so compared with the scheme of controlling the air conditioner to perform the defrosting mode according to the temperature of the first condenser, whether the first condenser surface is frosted can be determined more accurately, so that the case that the air conditioner is defrosted falsely in the case of low temperature can be reduced.

[0019] The foregoing general description and the following description are merely exemplary and explanatory, and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and are not intended to be limiting of the embodiments, in which like reference numerals denote like elements in the figures, and in which:

[0021] Figure 1 is a structural schematic diagram of an air conditioner provided by the embodiments of the present disclosure;

[0022] Figure 2 is a schematic diagram of a method for controlling an air conditioner provided by the embodiments of the present disclosure;

[0023] Figure 3 is a schematic diagram of another method for controlling an air conditioner provided by the embodiments of the present disclosure;

[0024] Figure 4 is a schematic diagram of another method for controlling an air conditioner provided by the embodiments of the present disclosure;

[0025] Figure 5 is a schematic diagram of a device for controlling an air conditioner provided by the embodiments of the present disclosure;

[0026] Figure 6 is a schematic diagram of an electronic device provided by the embodiments of the present disclosure.

[0027] BRIEF DESCRIPTION OF DRAWINGS: 1, indoor unit; 2, air pipe stop valve; 3, fifth filter; 4, four-way valve; 5, oil separator; 6, fourth filter; 7, return capillary; 8, compressor; 9, gas-liquid separator; 10, first condenser; 11, second condenser; 12, first filter; 13, second filter; 14, unloading valve; 15, electronic expansion valve; 16, third filter; 17, liquid pipe stop valve. DETAILED DESCRIPTION

[0028] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below, and the attached drawings are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, through multiple details, a sufficient understanding of the disclosed embodiments is provided. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0029] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0030] Unless otherwise specified, the term "a plurality of" means two or more.

[0031] In the embodiments of the present disclosure, the character " / " represents a "or" relationship between the preceding and following objects. For example, A / B represents: A or B.

[0032] The term "and / or" is a description of the association relationship between objects, which means that there can be three relationships. For example, A and / or B, which means: A or B, or, A and B, three relationships.

[0033] The term "corresponding" can refer to an association relationship or a binding relationship, A corresponding to B means that there is an association relationship or a binding relationship between A and B.

[0034] Combination Figure 1As shown, the air conditioner includes at least one indoor unit 1 and an outdoor unit. The outdoor unit includes a refrigerant circulation pipeline, on which are disposed a first condenser 10, a second condenser 11, a four-way valve 4, a compressor 8, an unloading valve 14, an electronic expansion valve 15, and a liquid pipe shut-off valve 17. One end of the first condenser 10 and one end of the second condenser 11 are both connected to a port c of the four-way valve 4 via a pipeline. Port d of the four-way valve is connected to the output end of the compressor 8 via a pipeline. The other end of the first condenser 10 is connected to one end of the electronic expansion valve via a pipeline. The other end of the electronic expansion valve 15 is connected to one end of the indoor unit 1 via a pipeline. The other end of the second condenser 11 is connected to one end of the unloading valve 14 via a pipeline. The other end of the unloading valve 14 is connected to one end of the electronic expansion valve 15 via a pipeline. The other end of the indoor unit 1 is connected to a port e of the four-way valve 4 via a pipeline. Port s of the four-way valve is connected to one end of the gas-liquid separator 9 via a pipeline. The other end of the gas-liquid separator 9 is connected to the input end of the compressor 8 via a pipeline. Furthermore, multiple filters are installed on the refrigerant circulation pipeline to remove small amounts of solid particles from the liquid, thereby ensuring normal operation of the air conditioner. A first filter 12 is installed between the first condenser 10 and the electronic expansion valve 15, and a second filter 13 is installed between the second condenser 11 and the unloading valve 14. A liquid line shutoff valve 17 is installed between the electronic expansion valve 15 and the indoor unit 1, and a third filter 16 is also installed between the electronic expansion valve 15 and the liquid line shutoff valve 17.

[0035] The output of compressor 8 is connected to the input of oil separator 5 via a pipe. The first output of oil separator 5 is connected to port d of four-way valve 4. The second output of oil separator 5 is connected to one end of fourth filter 6 via a pipe. The other end of fourth filter 6 is connected to one end of return capillary tube 7 via a pipe. The other end of return capillary tube 7 is connected to the input of compressor 8 via a pipe. A gas pipe shutoff valve 2 is installed between indoor unit 1 and four-way valve 4. A fifth filter 3 is installed between gas pipe shutoff valve 2 and four-way valve 4.

[0036] Combine Figure 2 As shown, an embodiment of the present disclosure provides a method for controlling an air conditioner, comprising:

[0037] In step S201 , the electronic device controls the air conditioner to perform heating operation, so that the refrigerant flows through the first condenser along the refrigerant circulation pipeline.

[0038] In step S202 , when the temperature of the first condenser is lower than a first preset threshold, the electronic device triggers the unloading valve to open, so that the refrigerant flows through the second condenser along the refrigerant circulation pipeline.

[0039] In step S203 , the electronic device obtains a first temperature and a second temperature; the first temperature is the temperature of the refrigerant after it passes through the first condenser, and the second temperature is the temperature of the refrigerant after it passes through the second condenser.

[0040] In step S204, the electronic device determines whether the first condenser surface is frosted according to the first temperature and the second temperature.

[0041] In step S205, in the case that the first condenser surface is frosted, the electronic device controls the air conditioner to execute a defrosting mode.

[0042] By using the method for controlling the air conditioner provided in the embodiments of the present disclosure, by setting the first condenser and the second condenser in the outdoor unit, in the case that the air conditioner is in a heating operation, the first condenser is first controlled to perform heat exchange, and then in the case that the temperature of the first condenser is lower than a first preset threshold, the second condenser is caused to join the heat exchange process. Since in the case that the first condenser is frosted, there is a large difference between the first temperature and the second temperature, therefore, whether the first condenser is frosted can be determined by the first temperature and the second temperature, and in the case that the first condenser surface is frosted, the air conditioner is controlled to execute a defrosting mode, thus compared with the scheme that the air conditioner is controlled to execute a defrosting mode according to only the temperature of the first condenser, whether the first condenser surface is frosted can be determined more accurately, so that the case that the air conditioner is in a frostless defrosting in the case of low temperature can be reduced.

[0043] In some embodiments, the electronic device is for the air conditioner.

[0044] Optionally, the temperature of the first condenser is obtained by the following manner, including: obtaining the temperature of the input end of the first condenser. Since the first condenser plays a role of heat absorption in the heating process of the air conditioner, therefore, the temperature of the input end of the first condenser is the lowest temperature of the first condenser. Therefore, in the case that the first condenser reaches the frosting condition, the unloading valve can be opened in time, so that whether the first condenser is frosted can be determined, and thus in the case that the first condenser is frosted, the first condenser can be defrosted in time.

[0045] Optionally, determining whether the first condenser surface is frosted according to the first temperature and the second temperature comprises: obtaining a third temperature of the refrigerant before the refrigerant passes through the first condenser for heat exchange, and obtaining a first absolute difference between the third temperature and the first temperature. A second absolute difference between the third temperature and the second temperature is obtained. In a case where a difference between the first absolute difference and the second absolute difference is greater than a second preset threshold, it is determined that the first condenser surface is frosted. And / or, in a case where the difference between the first absolute difference and the first absolute difference is less than a third preset threshold, it is determined that the first condenser surface is not frosted. Since the unloading valve is opened only in the case where the temperature of the first condenser is less than the first preset threshold, the refrigerant flows through the second condenser. At this time, the second condenser surface is definitely not frosted, and the frost temperature reached by the first condenser surface may be caused by frosting; or may be caused by a decrease in the external environment temperature. In the case where the first condenser surface is frosted, the heat exchange efficiency of the first condenser is reduced, and therefore, by comparing the first absolute difference and the second absolute difference, it can be determined whether the heat exchange efficiency of the first condenser is reduced. And in the case where the difference between the first absolute difference and the second absolute difference is greater than the second preset threshold, it can be determined that the heat exchange efficiency of the first condenser is greatly reduced, and then it is determined that the first condenser surface is frosted.

[0046] In combination Figure 3 As shown in the accompanying drawings, the embodiments of the present disclosure provide a method for controlling an air conditioner, comprising:

[0047] In step S301, the electronic device controls the air conditioner to perform heating operation, so that the refrigerant flows through the first condenser along the refrigerant circulation pipeline.

[0048] In step S302, in a case where the temperature of the first condenser is less than a first preset threshold, the electronic device triggers the unloading valve to open, so that the refrigerant flows through the second condenser along the refrigerant circulation pipeline.

[0049] In step S303, the electronic device obtains a first temperature, a second temperature and a third temperature of the refrigerant before the refrigerant passes through the first condenser for heat exchange. The first temperature is the temperature of the refrigerant after the refrigerant flows through the first condenser, and the second temperature is the temperature of the refrigerant after the refrigerant flows through the second condenser.

[0050] In step S304, the electronic device obtains a first absolute difference between the third temperature and the first temperature. A second absolute difference between the third temperature and the second temperature is obtained. In a case where a difference between the first absolute difference and the second absolute difference is greater than a second preset threshold, it is determined that the first condenser surface is frosted.

[0051] In step S305, the electronic device controls the air conditioner to perform a defrosting mode.

[0052] The method for controlling the air conditioner provided by the embodiment of the present disclosure is used. By arranging the first condenser and the second condenser in the outdoor unit, in the case of heating operation of the air conditioner, the first condenser is first controlled to exchange heat, and then the second condenser is enabled to exchange heat only in the case that the temperature of the first condenser is lower than the first preset threshold. Since the unloading valve is opened only in the case that the temperature of the first condenser is lower than the first preset threshold, the refrigerant flows through the second condenser. At this time, the surface of the second condenser is definitely not frosted, and the surface of the first condenser reaches the frosting temperature, which may be caused by frosting or by the decrease of the ambient temperature. Meanwhile, in the case of frosting on the surface of the first condenser, the heat exchange efficiency of the first condenser is reduced. Therefore, by comparing the first absolute difference and the second absolute difference, it can be determined whether the heat exchange efficiency of the first condenser is reduced. In the case that the difference between the first absolute difference and the second absolute difference is greater than the second preset threshold, it can be determined that the heat exchange efficiency of the first condenser is greatly reduced. Thus, compared with the scheme of controlling the air conditioner to execute the defrosting mode only according to the temperature of the first condenser, it can be more accurately determined whether the surface of the first condenser is frosted, so that the case of frostless defrosting of the air conditioner in the low temperature condition can be reduced.

[0053] Further, the outdoor unit comprises a first temperature sensor, a second temperature sensor, a third temperature sensor and an ambient temperature sensor. The first temperature sensor is arranged on a pipeline for connecting the four-way valve and the first condenser, and is used to collect the first temperature. The second temperature sensor is arranged on a pipeline for connecting the four-way valve and the second condenser, and is used to collect the second temperature. The third temperature sensor is arranged on a pipeline for connecting the electronic expansion valve and the liquid pipe stop valve, and is used to collect the third temperature. The ambient temperature sensor is used to collect the ambient temperature.

[0054] Optionally, determining whether the surface of the first condenser is frosted according to the first temperature and the second temperature comprises: in the case that the difference between the first temperature and the second temperature is greater than a fourth preset threshold, it is determined that the surface of the first condenser is frosted. Since the unloading valve is opened only in the case that the temperature of the first condenser is lower than the first preset threshold, the refrigerant flows through the second condenser. At this time, the surface of the second condenser is definitely not frosted, and the surface of the first condenser reaches the frosting temperature, which may be caused by frosting or by the decrease of the ambient temperature. However, in the case of frosting on the surface of the first condenser, the heat exchange efficiency of the first condenser is reduced. Therefore, by comparing the first temperature and the second temperature, it can be determined whether the heat exchange efficiency of the first condenser is reduced. In the case that the difference between the first temperature and the second temperature is greater than the fourth preset threshold, it can be determined that the heat exchange efficiency of the first condenser is greatly reduced, and then it is determined that the surface of the first condenser is frosted.

[0055] Optionally, after the control air conditioner to execute defrosting mode, further comprising: triggering the unloading valve to close. In this way, heat loss can be reduced, and defrosting of the first condenser can be completed faster.

[0056] In combination Figure 4 As shown in the embodiments of the present disclosure, a method for controlling an air conditioner is provided, comprising:

[0057] In step S401, the electronic device controls the air conditioner to perform heating operation, so that the refrigerant flows through the first condenser along the refrigerant circulation pipeline.

[0058] In step S402, in the case that the temperature of the first condenser is less than a first preset threshold, the electronic device triggers the unloading valve to open, so that the refrigerant flows through the second condenser along the refrigerant circulation pipeline.

[0059] In step S403, the electronic device acquires a first temperature and a second temperature; the first temperature is the temperature of the refrigerant after flowing through the first condenser, and the second temperature is the temperature of the refrigerant after flowing through the second condenser.

[0060] In step S404, the electronic device determines whether the first condenser surface is frosted according to the first temperature and the second temperature.

[0061] In step S405, in the case that the first condenser surface is frosted, the electronic device controls the air conditioner to execute defrosting mode.

[0062] In step S405, the electronic device triggers the unloading valve to close.

[0063] By adopting the method for controlling an air conditioner provided by the embodiments of the present disclosure, the first condenser and the second condenser are arranged in the outdoor unit, in the case that the air conditioner performs heating operation, the first condenser is first controlled to perform heat exchange, and then the second condenser is added to the heat exchange process in the case that the temperature of the first condenser is lower than a first preset threshold. Since there is a large difference between the first temperature and the second temperature in the case that the first condenser is frosted, whether the first condenser is frosted can be determined by the first temperature and the second temperature, and the air conditioner is controlled to execute defrosting mode only in the case that the first condenser surface is frosted. Compared with the scheme of controlling the air conditioner to execute defrosting mode only according to the temperature of the first condenser, whether the first condenser surface is frosted can be determined more accurately, so that the case that the air conditioner performs frostless defrosting in the case of low temperature can be reduced. Meanwhile, in the case that the air conditioner executes defrosting mode, the unloading valve is triggered to close, heat loss can be reduced, and defrosting of the first condenser can be completed faster.

[0064] Optionally, in the case that the first condenser surface is not frosted, the first temperature and the second temperature are acquired every interval of a preset time period, and whether the first condenser surface is frosted is determined according to the first temperature and the second temperature, until it is determined that the first condenser surface is frosted.

[0065] Optionally, in the case that the first condenser surface is not frosted, the first temperature and the second temperature are acquired every interval preset time period, and whether the first condenser surface is frosted is determined according to the first temperature and the second temperature until it is determined that the acquisition number is equal to the preset number.

[0066] In combination with Figure 5 As shown in the figure, the embodiment of the present disclosure provides a device 500 for controlling an air conditioner, which comprises a first control module 501, a triggering module 502, an acquisition module 503, a determination module 504 and a second control module 505. The first control module 501 is configured to control the air conditioner to perform a heating operation, so that the refrigerant flows through the first condenser along the refrigerant circulation pipeline. The triggering module 502 is configured to trigger the unloading valve to open in the case that the temperature of the first condenser is less than a first preset threshold, so that the refrigerant flows through the second condenser along the refrigerant circulation pipeline. The acquisition module 503 is configured to acquire a first temperature and a second temperature; the first temperature is the temperature of the refrigerant after flowing through the first condenser, and the second temperature is the temperature of the refrigerant after flowing through the second condenser. The determination module 504 is configured to determine whether the first condenser surface is frosted according to the first temperature and the second temperature. The second control module 505 is configured to control the air conditioner to perform a defrosting mode in the case that the first condenser surface is frosted.

[0067] By using the device for controlling an air conditioner provided by the embodiment of the present disclosure, the first condenser and the second condenser are arranged in the outdoor unit, in the case that the air conditioner performs a heating operation, the first condenser is first controlled to perform heat exchange, and then the second condenser is caused to join the heat exchange process in the case that the temperature of the first condenser is lower than a first preset threshold. Since there is a large difference between the first temperature and the second temperature in the case that the first condenser is frosted, whether the first condenser is frosted can be determined through the first temperature and the second temperature, and the air conditioner is controlled to perform a defrosting mode only in the case that the first condenser surface is frosted. Compared with the scheme of controlling the air conditioner to perform a defrosting mode only according to the temperature of the first condenser, whether the first condenser surface is frosted can be determined more accurately, so that the case that the air conditioner performs a frostless defrosting in the case of low temperature can be reduced.

[0068] Optionally, the temperature of the first condenser is acquired by acquiring the temperature of the input end of the first condenser.

[0069] Optionally, the determining module is configured to determine whether the first condenser surface is frosted according to the first temperature and the second temperature by: obtaining a third temperature of the refrigerant before passing through the first condenser for heat exchange, obtaining a first absolute difference between the third temperature and the first temperature. Obtain a second absolute difference between the third temperature and the second temperature, and in the case that the difference between the first absolute difference and the second absolute difference is greater than a second preset threshold, it is determined that the first condenser surface is frosted. And / or, in the case that the difference between the first absolute difference and the first absolute difference is less than a third preset threshold, it is determined that the first condenser surface is not frosted.

[0070] Optionally, the second control module is further configured to trigger the unloading valve to close.

[0071] In combination Figure 6 As shown, the electronic device 600 provided by the embodiment of the present disclosure includes a processor 601 and a memory 602. Optionally, the device can also include a communication interface 603 and a bus 604. Wherein the processor 601, the communication interface 603, the memory 602 can complete the communication between each other through the bus 604. The communication interface 603 can be used for information transmission. The processor 601 can call the logical instructions in the memory 602 to execute the method for controlling the air conditioner of the above-mentioned embodiments.

[0072] By adopting the electronic device provided by the embodiment of the present disclosure, by setting the first condenser and the second condenser in the outdoor unit, in the case of heating operation of the air conditioner, the first condenser is first controlled to perform heat exchange, and then in the case that the temperature of the first condenser is lower than the first preset threshold, the second condenser is enabled to join the heat exchange process. Because in the case that the first condenser is frosted, there will be a large difference between the first temperature and the second temperature, so by the first temperature and the second temperature, whether the first condenser is frosted can be determined, and in the case that the first condenser surface is frosted, the air conditioner is controlled to execute the defrosting mode, so compared with the scheme of controlling the air conditioner to execute the defrosting mode only according to the temperature of the first condenser, whether the first condenser surface is frosted can be determined more accurately, so that the case of frostless defrosting of the air conditioner in the case of low temperature can be reduced.

[0073] In addition, the logical instructions in the memory 602 described above can be realized in the form of a software function unit and sold or used as an independent product when used, which can be stored in a computer readable storage medium.

[0074] The memory 602, as a computer readable storage medium, can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiments of the present disclosure. The processor 601 executes the function application and data processing, that is, implements the method for controlling the air conditioner in the above embodiments, by running the program instructions / modules stored in the memory 602.

[0075] The memory 602 can include a program storage area and a data storage area, where the program storage area can store an operating system and an application program required by at least one function; the data storage area can store data created according to the use of the terminal device, and the like. In addition, the memory 602 can include a high-speed random access memory, and can also include a non-volatile memory.

[0076] The embodiments of the present disclosure provide a storage medium, which stores program instructions. When the program instructions are run, the method for controlling the air conditioner is executed.

[0077] The computer readable storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0078] The technical solutions of the embodiments of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes, or can be a transitory storage medium.

[0079] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include plural forms. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variations "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, an element defined by the sentence "comprising a..." does not exclude the presence of other identical elements in the process, method or device that includes the element. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments can be referenced to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can be found in the description of the method part.

[0080] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in 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. The technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. The technicians will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0081] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to apparatuses, devices, etc.), can be implemented in other manners. For example, the described apparatus embodiments can be implemented only in a form of a logical function, and can be implemented by using a manner such as software (for example, application program) or the like. In some embodiments, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed coupling or direct coupling or indirect coupling or communication connection between different components can be implemented by using some interfaces, and a combination of indirect coupling and direct coupling can be used. The integrated display or functional division can be physical or logical, and can be any other form. Some or all of the units can be selected according to actual needs to implement the embodiments. In addition, the units in the embodiments disclosed herein can be integrated into one processing unit, or each unit can exist alone physically, or two or more units can be integrated into one unit.

[0082] The flowcharts and block diagrams in the drawings show the possible implementation architectures, functions and operations of the system, method and computer program product according to the embodiments of the present disclosure. In this regard, each block in the flowcharts or block diagrams can represent a module, a program segment or a part of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions noted in the blocks can occur in an order different from that noted in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the drawings, the operations or steps corresponding to different blocks can also occur in an order different from that disclosed in the descriptions, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and the combination of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling an air conditioner, characterized by, The air conditioner comprises an outdoor unit, wherein the outdoor unit comprises a refrigerant circulation pipeline, and a first condenser, a second condenser and an unloading valve are arranged on the refrigerant circulation pipeline; the method comprises: controlling the air conditioner to perform a heating operation, so that the refrigerant flows through the first condenser along the refrigerant circulation pipeline; in a case where the temperature of the first condenser is less than a first preset threshold, triggering the unloading valve to open, so that the refrigerant flows through the second condenser along the refrigerant circulation pipeline; obtaining a first temperature and a second temperature; the first temperature is the temperature of the refrigerant after flowing through the first condenser, and the second temperature is the temperature of the refrigerant after flowing through the second condenser; determining whether the surface of the first condenser is frosted according to the first temperature and the second temperature; in a case where the surface of the first condenser is frosted, controlling the air conditioner to perform a defrosting mode; determining whether the surface of the first condenser is frosted according to the first temperature and the second temperature, comprising: obtaining a third temperature of the refrigerant before heat exchange through the first condenser; obtaining a first absolute difference between the third temperature and the first temperature; obtaining a second absolute difference between the third temperature and the second temperature; in a case where the difference between the first absolute difference and the second absolute difference is greater than a second preset threshold, it is determined that the surface of the first condenser is frosted; and / or, in a case where the difference between the first absolute difference and the first absolute difference is less than a third preset threshold, it is determined that the surface of the first condenser is not frosted.

2. The method of claim 1, wherein, The temperature of the first condenser is obtained in the following manner: obtaining the temperature of the input end of the first condenser.

3. The method of claim 1, wherein, after controlling the air conditioner to perform the defrosting mode, further comprising: triggering the unloading valve to close.

4. An apparatus for controlling an air conditioner, characterized by comprising: The air conditioner comprises an outdoor unit, wherein the outdoor unit comprises a refrigerant circulation pipeline, and a first condenser, a second condenser and an unloading valve are arranged on the refrigerant circulation pipeline; the device comprises: a first control module configured to control the air conditioner to perform a heating operation, so that the refrigerant flows through the first condenser along the refrigerant circulation pipeline; a triggering module configured to, in a case where the temperature of the first condenser is less than a first preset threshold, trigger the unloading valve to open, so that the refrigerant in the compressor flows through the second condenser along the refrigerant circulation pipeline; an obtaining module configured to obtain a first temperature and a second temperature; the first temperature is the temperature of the refrigerant after flowing through the first condenser, and the second temperature is the temperature of the refrigerant after flowing through the second condenser; a determination module configured to determine whether the surface of the first condenser is frosted according to the first temperature and the second temperature; a second control module configured to, in a case where the surface of the first condenser is frosted, control the air conditioner to perform a defrosting mode; a triggering module configured to, in a case where the temperature of the first condenser is less than a first preset threshold, trigger the unloading valve to open, so that the refrigerant in the compressor flows through the second condenser along the refrigerant circulation pipeline; an obtaining module configured to obtain a first temperature and a second temperature; the first temperature is the temperature of the refrigerant after flowing through the first condenser, and the second temperature is the temperature of the refrigerant after flowing through the second condenser; a determination module configured to determine whether the surface of the first condenser is frosted according to the first temperature and the second temperature; a second control module configured to, in a case where the surface of the first condenser is frosted, control the air conditioner to perform a defrosting mode; The determining module is configured to determine whether the first condenser surface is frosted according to the first temperature and the second temperature by: obtaining a third temperature of refrigerant before passing through the first condenser; obtaining a first absolute difference between the third temperature and the first temperature; obtaining a second absolute difference between the third temperature and the second temperature; determining that the first condenser surface is frosted if a difference between the first absolute difference and the second absolute difference is greater than a second preset threshold; and / or determining that the first condenser surface is not frosted if the difference between the first absolute difference and the first absolute difference is less than a third preset threshold.

5. The apparatus of claim 4, wherein, The temperature of the first condenser is obtained by: Obtaining a temperature of an input end of the first condenser.

6. The apparatus of claim 4, wherein, The second control module is further configured to trigger the unloading valve to close.

7. An electronic device comprising a processor and a memory having stored program instructions, wherein the program instructions, when executed by the processor, cause the electronic device to perform the method of any one of claims 1-6. The processor is configured to execute the method for controlling an air conditioner according to any one of claims 1 to 3 when the program instructions are executed.

8. A storage medium storing program instructions, characterized in that, The program instructions, when executed, perform the method for controlling an air conditioner according to any one of claims 1 to 3.

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