Method and device for controlling air conditioner, air conditioner and computer readable storage medium

Abstract

The invention relates to the technical field of air conditioners, and discloses a method for controlling an air conditioner, the air conditioner comprises an indoor heat exchanger, and a plurality of refrigerant branches connected in parallel are arranged on the indoor heat exchanger; the method comprises the steps that under the condition that the air conditioner is started and runs, the indoor environment temperature is continuously obtained; and the multiple refrigerant branches are controlled to be conducted in sequence till the indoor environment temperature meets the indoor temperature standard reaching condition. The compressor can be prevented from being frequently started and stopped after the room temperature reaches the standard, the overall energy efficiency of the air conditioning system can be improved, and the energy-saving effect of an air conditioner can be improved. The invention further discloses a device for controlling the air conditioner, the air conditioner and a computer readable storage medium.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, such as a method, apparatus, air conditioner, and computer-readable storage medium for controlling an air conditioner. Background Technology

[0002] Currently, with the continuous improvement of people's living standards, air conditioners have become an indispensable household appliance in daily life. In daily use, air conditioners typically adjust the indoor ambient temperature according to the user's set temperature. When the indoor ambient temperature is lower than the user's set temperature, the air conditioner will activate the temperature-reaching shutdown function, shutting off the compressor to achieve standby operation. When the indoor ambient temperature rises back above the user's set temperature, the compressor will start running again. However, under these circumstances, the frequent starting and stopping of the compressor by the air conditioner will cause unnecessary energy consumption and easily reduce user comfort. To address this, a method for controlling the operation of an air conditioner has been proposed, including: acquiring the set temperature of the air conditioner and the indoor ambient temperature; when the difference between the set temperature and the indoor ambient temperature is less than or equal to a preset temperature difference, determining whether the operating state of the air conditioner conforms to the preset operating state; if so, generating a control command to cause the air conditioner to enter a preset low operating frequency mode.

[0003] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0004] These technologies can prevent indoor temperatures from rising or falling too quickly, thus improving indoor comfort. However, the fixed refrigerant volume in these systems makes it difficult to guarantee that the indoor heat exchanger can reach its optimal heat exchange state, ultimately resulting in low overall system energy efficiency and poor energy-saving performance of the air conditioner.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This disclosure provides a method, apparatus, air conditioner, and computer-readable storage medium for controlling an air conditioner. It can avoid frequent starting and stopping of the compressor after the room temperature meets the standard conditions, and can improve the overall energy efficiency of the air conditioning system, thus improving the energy-saving effect of the air conditioner.

[0008] In some embodiments, the air conditioner includes an indoor heat exchanger with multiple refrigerant branches connected in parallel; the method includes: continuously acquiring the indoor ambient temperature while the air conditioner is running; and controlling the multiple refrigerant branches to be sequentially turned on until the indoor ambient temperature meets the room temperature standard.

[0009] In some embodiments, the apparatus includes a processor and a memory storing program instructions, the processor being configured to execute the method for controlling an air conditioner as described above when the program instructions are executed.

[0010] In some embodiments, the air conditioner includes: an indoor heat exchanger having multiple refrigerant branches connected in parallel; and the aforementioned device for controlling the air conditioner being electrically connected to each of the multiple refrigerant branches.

[0011] In some embodiments, the computer-readable storage medium stores program instructions that, when executed, cause the computer to perform the above-described method for controlling an air conditioner.

[0012] The method, apparatus, air conditioner, and computer-readable storage medium for controlling an air conditioner provided in this disclosure can achieve the following technical effects:

[0013] This embodiment of the invention continuously acquires the indoor ambient temperature after the air conditioner is turned on to determine whether the current indoor ambient temperature meets the room temperature standard. Before the room temperature standard is met, this embodiment controls multiple parallel refrigerant branches of the indoor heat exchanger to be sequentially activated, thereby rationally distributing the refrigerant amount in the system to ensure that the indoor heat exchanger reaches its optimal heat exchange state. Therefore, this embodiment avoids frequent compressor start-stop cycles after the room temperature standard is met and improves the overall energy efficiency of the air conditioning system, thus enhancing the energy-saving effect of the air conditioner.

[0014] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0015] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0016] Figure 1 This is a schematic diagram of a method for controlling an air conditioner provided in an embodiment of this disclosure;

[0017] Figure 2 This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0018] Figure 3This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0019] Figure 4 This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0020] Figure 5 This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0021] Figure 6 This is a schematic diagram of a device for controlling an air conditioner provided in an embodiment of this disclosure;

[0022] Figure 7 This is a schematic diagram of an air conditioner provided in an embodiment of this disclosure. Detailed Implementation

[0023] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0024] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0025] Unless otherwise stated, the term "multiple" means two or more.

[0026] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0027] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0028] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0029] In this embodiment of the present disclosure, the air conditioner includes an indoor heat exchanger. The indoor heat exchanger has multiple parallel refrigerant branches. Optionally, the air conditioner also includes an indoor fan, which is configured corresponding to the indoor heat exchanger.

[0030] Combination Figure 1 As shown in the embodiments of this disclosure, a method for controlling an air conditioner is provided, comprising:

[0031] S101: When the air conditioner is running, the processor continuously obtains the indoor ambient temperature.

[0032] S102, the processor controls multiple refrigerant branches to be turned on sequentially until the indoor ambient temperature meets the room temperature standard.

[0033] The method for controlling an air conditioner provided in this disclosure continuously acquires the indoor ambient temperature after the air conditioner is turned on to determine whether the current indoor ambient temperature meets the room temperature standard. Before the room temperature standard is met, this disclosure controls multiple parallel refrigerant branches of the indoor heat exchanger to be sequentially activated, thereby rationally distributing the refrigerant amount in the system to ensure the indoor heat exchanger reaches its optimal heat exchange state. Therefore, this disclosure avoids frequent compressor starts and stops after the room temperature standard is met and improves the overall energy efficiency of the air conditioning system, thus enhancing the energy-saving effect of the air conditioner.

[0034] Optionally, the processor controls multiple refrigerant branches to be sequentially activated until the indoor ambient temperature meets the room temperature target. This includes: the processor determining the target activation sequence of the multiple refrigerant branches based on the distance between each refrigerant branch and the indoor fan; and the processor controlling the multiple refrigerant branches to be sequentially activated according to the target activation sequence until the indoor ambient temperature meets the room temperature target. Thus, this embodiment of the present disclosure can pre-set the target activation sequence among multiple refrigerant branches based on the distance between each refrigerant branch and the indoor fan. Before the indoor ambient temperature meets the room temperature target, this embodiment of the present disclosure can sequentially activate each refrigerant branch according to the target activation sequence, thereby reasonably increasing the system refrigerant volume so that the indoor heat exchanger gradually approaches its optimal heat exchange state. This is beneficial for improving the overall energy efficiency of the air conditioning system, thereby enhancing the energy-saving effect of the air conditioning.

[0035] Optionally, the smaller the distance between the refrigerant branch and the indoor fan, the earlier the refrigerant branch is in the target start-up sequence. Thus, the smaller the distance between the refrigerant branch and the indoor fan, the earlier it is in the target start-up sequence and therefore the sooner it is turned on. Consequently, when the air conditioner is turned on, this embodiment can prioritize the refrigerant branch closest to the indoor fan for activation, thereby improving the overall heat exchange efficiency of the indoor heat exchanger and helping the indoor ambient temperature reach the target temperature more quickly, thus better ensuring the user's comfort experience.

[0036] Optionally, the processor controls multiple refrigerant branches to be turned on sequentially according to the target activation order until the indoor ambient temperature meets the room temperature target, including:

[0037] The processor executes the following steps in a loop until the indoor ambient temperature meets the room temperature standard: The processor determines the target refrigerant branch from the unconnected refrigerant branches according to the target turn-on sequence; The processor controls the target refrigerant branch to be turned on so that the temperature of the target refrigerant branch is less than or equal to the preset pipe temperature.

[0038] In this way, when the air conditioner is turned on, the present embodiment can sequentially activate the target refrigerant branch corresponding to the current position in the target activation sequence, making the temperature of the target refrigerant branch less than or equal to the preset pipe temperature of the cooling demand, thereby enabling the target refrigerant branch to enter a stable heat exchange state. Then, the present embodiment obtains the indoor ambient temperature at this time to determine whether it meets the room temperature target conditions. If it does not meet the conditions, it indicates that the current indoor heat exchanger has not yet reached the optimal heat exchange state, so the next target refrigerant branch can be determined according to the target activation sequence. Then, the next target refrigerant branch is activated, slightly increasing the amount of refrigerant passing through the indoor heat exchanger to gradually improve the heat exchange efficiency of the indoor heat exchanger, and this cycle is repeated. Until a certain target refrigerant branch is activated and enters a stable heat exchange state, the corresponding indoor ambient temperature meets the room temperature target conditions. At this time, it is determined that the current indoor heat exchanger has reached the optimal heat exchange state, and there is no need to activate the remaining refrigerant branches, thereby rationally allocating the system refrigerant amount to improve the overall energy efficiency of the air conditioning system, which is conducive to improving the energy-saving effect of the air conditioner.

[0039] Combination Figure 2 As shown in the embodiments of this disclosure, another method for controlling an air conditioner is provided, including:

[0040] S201: When the air conditioner is running, the processor continuously obtains the indoor ambient temperature.

[0041] S202, the processor determines the target start-up sequence of multiple refrigerant branches based on the distance between each refrigerant branch and the indoor fan.

[0042] S203, the processor determines the target refrigerant branch from the unconnected refrigerant branches according to the target turn-on sequence.

[0043] S204, the processor controls the target refrigerant branch to be turned on so that the temperature of the target refrigerant branch is less than or equal to the preset pipeline temperature.

[0044] S205, the processor determines whether the indoor ambient temperature meets the room temperature standard. If not, it returns to step S203; if yes, it proceeds to step S206.

[0045] S206, Processor exits control.

[0046] Using the air conditioning control method provided in this embodiment, after the air conditioner is turned on, this embodiment determines the first refrigerant branch according to the target start-up sequence and controls the first refrigerant branch to be turned on, while the remaining refrigerant branches are in an isolated state. Then, this embodiment continuously monitors the temperature of the first refrigerant branch (e.g., outlet temperature) to ensure that the temperature of the first refrigerant branch is less than or equal to the preset pipe temperature required for cooling (e.g., 10°C), thereby allowing the first refrigerant branch to enter a stable heat exchange state. Then, this embodiment obtains the indoor ambient temperature at this time to determine whether it meets the room temperature standard. If it does not meet the standard, it indicates that the indoor heat exchanger has not yet reached its optimal heat exchange state, so the adjacent second refrigerant branch can be determined according to the target start-up sequence. Then, the second refrigerant branch is turned on, slightly increasing the amount of refrigerant passing through the indoor heat exchanger to gradually improve the heat exchange efficiency of the indoor heat exchanger, and this cycle continues. This continues until the Nth refrigerant branch is turned on and enters a stable heat exchange state, at which point the corresponding indoor ambient temperature meets the room temperature standard. At this point, it is determined that the indoor heat exchanger has reached its optimal heat exchange state, and there is no need to add any additional refrigerant branches for conduction. This allows for the rational allocation of refrigerant in the system to improve the overall energy efficiency of the air conditioning system, which is beneficial for enhancing the energy-saving effect of the air conditioning.

[0047] Optionally, the conditions for achieving the room temperature target include: the difference between the indoor ambient temperature and the air conditioner's set temperature is less than or equal to the preset temperature difference. Thus, when the difference between the indoor ambient temperature and the air conditioner's set temperature is less than or equal to the preset temperature difference, it indicates that the indoor ambient temperature is close to the air conditioner's set temperature, resulting in a better user comfort experience.

[0048] Optionally, the preset temperature difference is greater than or equal to 0℃. Preferably, the preset temperature difference can be set to 2℃ to ensure a comfortable user experience. The preset temperature difference can also be adjusted according to the user's actual needs, and can be set to 0℃, 3℃, or any other reasonable value.

[0049] Combination Figure 3 As shown in the embodiments of this disclosure, another method for controlling an air conditioner is provided, including:

[0050] S301: When the air conditioner is running, the processor continuously obtains the indoor ambient temperature.

[0051] S302, the processor obtains the air conditioner power parameters.

[0052] S303, the processor acquires indoor space parameters.

[0053] S304 The processor determines whether the air conditioner meets the capacity requirements based on the air conditioner's power parameters and indoor space parameters.

[0054] S305, when the air conditioner meets the required capacity, the processor controls multiple refrigerant branches to be turned on sequentially until the indoor ambient temperature meets the required room temperature.

[0055] The method for controlling an air conditioner provided in this disclosure allows for the acquisition of air conditioner power parameters and indoor space parameters during operation to determine whether the air conditioner meets its capacity requirements. If the air conditioner meets these requirements, it indicates that its operating capacity is sufficient to support the current indoor temperature demand. This disclosure also allows for the rational allocation of multiple refrigerant branches for energy saving, ensuring the indoor heat exchanger reaches its optimal heat exchange state. While ensuring the air conditioner's operational performance, it also improves the overall energy efficiency of the air conditioning system, thus enhancing its energy-saving effect.

[0056] Optionally, the processor determines whether the air conditioner meets the capacity compliance conditions based on the air conditioner power parameters and indoor space parameters, including: the processor determining a first volume value corresponding to the air conditioner based on the air conditioner power parameters; the processor calculating a second volume value of the indoor space based on the indoor space parameters; if the first volume value corresponding to the air conditioner is greater than or equal to the second volume value of the indoor space, the processor determines that the air conditioner meets the capacity compliance conditions; or, if the first volume value corresponding to the air conditioner is less than the second volume value of the indoor space, the processor determines that the air conditioner does not meet the capacity compliance conditions. Thus, this embodiment of the present disclosure can determine the first volume value of the applicable space for the air conditioner based on the air conditioner power parameters, and can calculate the second volume value of the actual indoor space based on the indoor space parameters. By comparing the magnitudes of the first and second volume values, this embodiment of the present disclosure can accurately determine whether the current air conditioner meets the capacity compliance conditions, thereby facilitating the rational allocation of multiple refrigerant branches of the indoor heat exchanger to balance the air conditioner's operating performance and energy-saving effects.

[0057] Optionally, the air conditioner power parameters include the air conditioner's horsepower; the processor determines the first volume value corresponding to the air conditioner based on the air conditioner power parameters, including: the processor calculates the product of the air conditioner's operating horsepower and a reference volume value to obtain the first volume value corresponding to the air conditioner. Optionally, the reference volume value is 30 m³ / P. In this way, the embodiments of this disclosure can relatively easily determine the first volume value of the space where the air conditioner is applicable.

[0058] Optionally, the indoor space parameters include indoor length, indoor width, and indoor height; the processor calculates a second volume value of the interior based on the indoor space parameters, including: the processor calculates the product of the indoor length, indoor width, and indoor height to obtain the second volume value of the interior. Thus, embodiments of this disclosure can relatively easily determine the second volume value of the actual indoor space.

[0059] Combination Figure 4 As shown in the embodiments of this disclosure, another method for controlling an air conditioner is provided, including:

[0060] S401: When the air conditioner is running, the processor continuously obtains the indoor ambient temperature.

[0061] S402, the processor obtains the air conditioner power parameters.

[0062] S403, the processor acquires indoor space parameters.

[0063] S404, the processor determines whether the air conditioner meets the capacity requirements based on the air conditioner power parameters and indoor space parameters. If not, proceed to step S405; if yes, proceed to step S406.

[0064] The S405 processor controls the activation of all multiple refrigerant branches.

[0065] The S406 processor controls multiple refrigerant branches to be turned on sequentially until the indoor ambient temperature meets the required room temperature.

[0066] The method for controlling an air conditioner provided in this disclosure allows for the acquisition of air conditioner power parameters and indoor space parameters when the air conditioner is turned on, to determine whether the air conditioner meets the required capacity. If the air conditioner fails to meet the required capacity, it indicates that the air conditioner's operating capacity is insufficient to support the current indoor temperature demand. In this case, this disclosure allows for the control of multiple refrigerant branches to be fully activated, enabling the air conditioner to operate at its maximum output power, thereby maximizing the satisfaction of the user's comfort needs.

[0067] Combination Figure 5 As shown in the embodiments of this disclosure, another method for controlling an air conditioner is provided, including:

[0068] S501, when the air conditioner is running, the processor controls all multiple refrigerant branches to be activated.

[0069] The S502 processor continuously acquires the indoor ambient temperature.

[0070] S503, when the indoor ambient temperature meets the room temperature standard, the processor controls multiple refrigerant branches to be disconnected in sequence, and controls the compressor's operating frequency to be reduced step by step until the air conditioner meets the compressor protection conditions.

[0071] The method for controlling an air conditioner provided in this disclosure, after the air conditioner is turned on, controls all parallel refrigerant branches of the indoor heat exchanger to be connected, thereby allowing the indoor ambient temperature to reach near the user's set temperature as quickly as possible, which is beneficial to improving the user's comfort experience. The method continuously acquires the indoor ambient temperature to determine whether the current indoor ambient temperature meets the room temperature target. After the room temperature target is met, this disclosure controls the compressor's operating frequency to gradually decrease, and simultaneously controls multiple refrigerant branches of the indoor heat exchanger to be sequentially disconnected. This reduces unnecessary energy consumption and also rationally coordinates the refrigerant state inside the compressor, ensuring that the compressor maintains a constant temperature. Therefore, this disclosure avoids frequent temperature fluctuations after the compressor frequency is reduced, which is beneficial to ensuring the compressor's oil return performance and improving the air conditioner's operating effect. Furthermore, before the air conditioner meets the compressor protection conditions, this disclosure controls as many refrigerant branches of the indoor heat exchanger as possible to be disconnected, thereby improving the overall energy efficiency of the air conditioning system and enhancing the air conditioner's energy-saving effect.

[0072] Optionally, the processor controls multiple refrigerant branches to be sequentially shut down and controls the compressor's operating frequency to be gradually reduced until the air conditioner meets the compressor protection conditions. This includes: the processor determining the target shutdown sequence of the multiple refrigerant branches based on the distance between each refrigerant branch and the indoor fan; the processor controlling the multiple refrigerant branches to be sequentially shut down according to the target shutdown sequence and controlling the compressor to gradually reduce its operating frequency according to the target frequency reduction ratio until the air conditioner meets the compressor protection conditions. Thus, this embodiment of the present disclosure can pre-set the target shutdown sequence among multiple refrigerant branches based on the distance between each refrigerant branch and the indoor fan. Before the air conditioner meets the compressor protection conditions, this embodiment of the present disclosure can sequentially shut down each refrigerant branch according to the target shutdown sequence, thereby improving the overall energy efficiency of the air conditioning system and enhancing the energy-saving effect of the air conditioner.

[0073] Optionally, the greater the distance between the refrigerant branch and the indoor fan, the earlier the refrigerant branch appears in the target shutdown sequence. Thus, the greater the distance between the refrigerant branch and the indoor fan, the earlier it appears in the target shutdown sequence and is therefore turned on sooner. Consequently, once the room temperature meets the target, this embodiment can prioritize controlling the refrigerant branch furthest from the indoor fan for shutdown, thereby avoiding significant fluctuations in the overall heat exchange efficiency of the indoor heat exchanger and ensuring the effective operation of the air conditioner.

[0074] Optionally, the processor controls multiple refrigerant branches to be shut down sequentially according to a target shutdown order, and controls the compressor to gradually reduce its operating frequency according to a target frequency reduction ratio until the air conditioner meets the compressor protection conditions, including:

[0075] The processor executes the following steps in a loop until the air conditioner meets the compressor protection conditions: The processor determines the target refrigerant branch from the main refrigerant circuit that has been connected according to the target shutdown sequence; the processor controls the isolation of the target refrigerant branch and controls the compressor to reduce the operating frequency according to the target frequency reduction ratio.

[0076] Thus, once the room temperature meets the target, this embodiment can gradually reduce the compressor's operating frequency according to the target frequency reduction ratio, thereby reducing unnecessary energy consumption and improving the air conditioner's energy-saving effect. Simultaneously, to prevent the compressor temperature from decreasing as the operating frequency decreases, potentially causing delayed or insufficient oil return, this embodiment can sequentially disconnect the target refrigerant branch corresponding to the current position in the target shutdown sequence. This gradually reduces the amount of refrigerant circulating in the indoor heat exchanger, while relatively increasing the amount of refrigerant passing through the compressor, thereby increasing the work done inside the compressor and facilitating temperature recovery. By maintaining a constant compressor temperature, this embodiment ensures the compressor's oil return performance, improving the air conditioner's operating efficiency. Furthermore, before the air conditioner meets the compressor protection conditions, controlling the disconnection of as many refrigerant branches as possible in the indoor heat exchanger also improves the overall energy efficiency of the air conditioning system, further enhancing its energy-saving effect.

[0077] Optionally, the conditions for achieving the room temperature target include: the difference between the indoor ambient temperature and the air conditioner's set temperature is less than or equal to the preset temperature difference. Thus, when the difference between the indoor ambient temperature and the air conditioner's set temperature is less than or equal to the preset temperature difference, it indicates that the indoor ambient temperature is close to the air conditioner's set temperature, resulting in a better user comfort experience.

[0078] Optionally, the preset temperature difference is greater than or equal to 0℃. Preferably, the preset temperature difference can be set to 2℃ to ensure a comfortable user experience. The preset temperature difference can also be adjusted according to the user's actual needs, and can be set to 0℃, 3℃, or any other reasonable value.

[0079] Optionally, the target frequency reduction ratio can be set to 5% to reduce unnecessary energy consumption. The target frequency reduction ratio can also be adjusted according to the user's actual needs, and can be set to 3% or 10% or any other reasonable value.

[0080] Optionally, the compressor protection condition includes: the pressure of the remaining connected refrigerant branch is greater than or equal to the target pipeline pressure. Thus, when the operation of controlling the isolation of the target refrigerant branch and the operation of controlling the compressor to reduce its operating frequency according to the target frequency reduction ratio are executed simultaneously, if the pressure of the remaining connected refrigerant branch exceeds the target pipeline pressure, it is determined that the air conditioner enters overpressure protection and stops further control of the remaining refrigerant branch to isolate it.

[0081] Optionally, the pressure of the remaining conducting refrigerant branch can be the average outlet pressure of the remaining conducting refrigerant branch, or the current outlet pressure of the next target refrigerant branch in the target shutdown sequence.

[0082] Optionally, the method for controlling the air conditioner further includes: when the indoor ambient temperature meets the room temperature target, the processor detects the pressure of all connected refrigerant branches as the target pipeline pressure. Thus, when the indoor ambient temperature just meets the room temperature target, the pressure of all connected refrigerant branches at this time can be detected as the target pipeline pressure when the air conditioner reaches a stable state. Then, in this embodiment, the target refrigerant branch isolation is simultaneously controlled, and the compressor's operating frequency is reduced according to the target frequency reduction ratio. The pressure of the remaining connected refrigerant branches at this time is detected, and by comparing it with the aforementioned target pipeline pressure, this embodiment can determine whether the air conditioner has left the stable state and entered overpressure protection. If so, control is exited to stop the operation of isolating the remaining refrigerant branches, thereby avoiding damage to the compressor and promoting reliable air conditioner operation.

[0083] Optionally, the pressure of all the refrigerant branches that are in operation can be the average outlet pressure of all the refrigerant branches that are in operation, or it can be the current outlet pressure of the first target refrigerant branch in the target shutdown sequence.

[0084] Optionally, the method for controlling the air conditioner further includes: when the air conditioner meets the compressor protection conditions, the processor controls the nearest disconnected target refrigerant branch to be reconnected. In this way, when the air conditioner meets the compressor protection conditions, the nearest disconnected target refrigerant branch can be reconnected to share the refrigerant flow into the indoor heat exchanger, thereby allowing the pressure of the remaining connected refrigerant branches to decrease reasonably, thus allowing the air conditioner to escape overpressure protection, which helps avoid damage to the compressor and achieves reliable operation of the air conditioner. Furthermore, the compressor is in a constant temperature state at this time, ensuring its oil return performance and improving the operating effect of the air conditioner. Simultaneously, this embodiment controls the disconnection of as many refrigerant branches as possible in the indoor heat exchanger, thereby improving the overall energy efficiency of the air conditioning system and achieving optimal energy-saving effects.

[0085] Combination Figure 6As shown, this disclosure provides an apparatus 100 for controlling an air conditioner, including a processor 101 and a memory 102. Optionally, the apparatus 100 may further include a communication interface 103 and a bus 104. The processor 101, communication interface 103, and memory 102 can communicate with each other via the bus 104. The communication interface 103 can be used for information transmission. The processor 101 can call logical instructions in the memory 102 to execute the method for controlling the air conditioner described in the above embodiment.

[0086] Furthermore, the logical instructions in the aforementioned memory 102 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0087] The memory 102, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 101 executes functional applications and data processing by running the program instructions / modules stored in the memory 102, that is, it implements the method for controlling the air conditioner in the above embodiments.

[0088] The memory 102 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 102 may include high-speed random access memory and may also include non-volatile memory.

[0089] Combination Figure 7 As shown, this disclosure provides an air conditioner, including: an air conditioner body 200, and the aforementioned device 100 for controlling the air conditioner. The device 100 for controlling the air conditioner is installed in the air conditioner body 200. The installation relationship described herein is not limited to placement inside the air conditioner body 200, but also includes installation and connection with other components of the air conditioner, including but not limited to physical connections, electrical connections, or signal transmission connections. Those skilled in the art will understand that the device 100 for controlling the air conditioner can be adapted to feasible product bodies to achieve other feasible embodiments.

[0090] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for controlling an air conditioner.

[0091] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, such as a USB flash drive, external hard drive, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk, etc., and other media capable of storing program code.

[0092] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0093] Those skilled in the art will recognize that the units and algorithm steps of the various examples 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 implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0094] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0095] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling an air conditioner, characterized by, The air conditioner comprises an indoor heat exchanger, and a plurality of parallel refrigerant branches are arranged on the indoor heat exchanger; and the method comprises the following steps: In the case that the air conditioner is running, the indoor environment temperature is continuously acquired; The plurality of refrigerant branches are sequentially turned on until the indoor environment temperature meets the room temperature standard condition.

2. The method of claim 1, wherein, The air conditioner further comprises an indoor fan arranged corresponding to the indoor heat exchanger; the plurality of refrigerant branches are sequentially turned on until the indoor environment temperature meets the room temperature standard condition, which comprises the following steps: According to the distance between each refrigerant branch and the indoor fan, a target opening sequence of the plurality of refrigerant branches is determined; The plurality of refrigerant branches are sequentially turned on according to the target opening sequence until the indoor environment temperature meets the room temperature standard condition.

3. The method of claim 2, wherein, The smaller the distance between the refrigerant branch and the indoor fan, the earlier the position of the refrigerant branch in the target opening sequence.

4. The method of claim 2, wherein, The plurality of refrigerant branches are sequentially turned on according to the target opening sequence until the indoor environment temperature meets the room temperature standard condition, which comprises the following steps: The following steps are cyclically executed until the indoor environment temperature meets the room temperature standard condition: According to the target opening sequence, a target refrigerant branch is determined from the refrigerant branches that are not turned on; The target refrigerant branch is turned on so that the temperature of the target refrigerant branch is less than or equal to a preset pipeline temperature; The room temperature standard condition comprises that the difference between the indoor environment temperature and the set temperature of the air conditioner is less than or equal to a preset temperature difference.

5. The method according to any one of claims 1 to 4, characterized in that, Before the plurality of refrigerant branches are sequentially turned on, the following steps are further included: An air conditioner power parameter is acquired; An indoor space parameter is acquired; According to the air conditioner power parameter and the indoor space parameter, it is determined whether the air conditioner meets an ability standard condition; The plurality of refrigerant branches are sequentially turned on, which comprises the following steps: In the case that the air conditioner meets the ability standard condition, the plurality of refrigerant branches are sequentially turned on.

6. The method of claim 5, wherein, According to the air conditioner power parameter, a first volume value corresponding to the air conditioner is determined; According to the indoor space parameter, a second volume value of the indoor space is calculated; In the case that the first volume value corresponding to the air conditioner is greater than or equal to the second volume value of the indoor space, it is determined that the air conditioner meets the ability standard condition; or In the case that the first volume value corresponding to the air conditioner is less than the second volume value of the indoor space, it is determined that the air conditioner does not meet the ability standard condition. Further comprising the following steps:

7. The method of claim 5, wherein, In the case that the air conditioner does not meet the ability standard condition, all the plurality of refrigerant branches are turned on. The processor is configured to execute the method for controlling the air conditioner when the program instructions are executed.

8. An apparatus for controlling an air conditioner, comprising a processor and a memory having stored program instructions, characterized in that, Comprise:

9. An air conditioner characterized by comprising: An indoor heat exchanger is provided with a plurality of parallel refrigerant branches; The device for controlling the air conditioner according to claim 8 is electrically connected with the plurality of refrigerant branches, respectively. The program instructions are used to make the computer execute the method for controlling the air conditioner when the program instructions are executed.

10. A computer readable storage medium storing program instructions, characterized in that, ​

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