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

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a method for controlling an air conditioner, which comprises the following steps: acquiring and recording an air conditioner current; in the case that the air conditioner current is greater than or equal to a preset frequency reduction current, acquiring a current operation mode; and adjusting an outdoor fan according to the current operation mode to reduce the air conditioner current. In this way, in the case that the air conditioner current is too large, the air conditioner current is reduced by adjusting the outdoor fan, instead of reducing the air conditioner current by reducing the frequency of a compressor, so that the air conditioner can continuously operate without stopping due to the compressor, and stable operation of the air conditioner can be maintained. The application further discloses an apparatus for controlling an air conditioner, an air conditioner and a storage medium.

Description

Technical Field

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

[0002] During operation, air conditioners may experience excessive system pressure. This excessive pressure causes an increase in the air conditioner's current. Excessive current can damage air conditioner components. Therefore, when the current is too high, it needs to be reduced. Common techniques for this are to reduce the compressor frequency to lower system pressure, thereby reducing the current. However, simply reducing the compressor frequency to decrease the current may cause the compressor to shut down, leading to unstable air conditioner operation. Summary of the Invention

[0003] 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.

[0004] This disclosure provides a method and apparatus for controlling an air conditioner, an air conditioner, and a storage medium to maintain stable operation of the air conditioner.

[0005] In some embodiments, the method for controlling an air conditioner includes: acquiring and recording the air conditioner current; acquiring the current operating mode when the air conditioner current is greater than or equal to a preset frequency reduction current; and adjusting the outdoor fan according to the current operating mode to reduce the air conditioner current.

[0006] In some embodiments, adjusting the outdoor fan according to the current operating mode includes: acquiring the outdoor ambient temperature and the current fan speed; if the current operating mode is a cooling operating mode, determining a first correction parameter based on the outdoor ambient temperature; determining the sum of the current fan speed and the first correction parameter as a first target speed; triggering the outdoor fan to operate at the first target speed; and / or, if the current operating mode is a heating operating mode, determining a second correction parameter based on the outdoor ambient temperature; determining the difference between the current fan speed and the second correction parameter as a second target speed; triggering the outdoor fan to operate at the second target speed.

[0007] In some embodiments, after adjusting the outdoor fan according to the current operating mode, the method further includes: accumulating a first adjustment duration; if the first adjustment duration is greater than a first preset duration, re-acquiring and recording the air conditioning current; determining the difference between the current air conditioning current and the historical air conditioning current as the current difference; the current air conditioning current is the air conditioning current ranked last in the air conditioning current list; the historical air conditioning current is the air conditioning current ranked second to last in the air conditioning current list; the air conditioning current list records several air conditioning currents in the order of acquisition time; if the current air conditioning current is greater than or equal to the preset frequency reduction current and the current difference is less than the first preset difference, determining the valve opening degree according to the current air conditioning current, and triggering the electronic expansion valve to open according to the valve opening degree; if the current air conditioning current is greater than or equal to the preset frequency reduction current and the current difference is greater than the first preset difference, readjusting the outdoor fan according to the current operating mode.

[0008] In some embodiments, determining the valve opening degree based on the current air conditioner current includes: obtaining the air conditioner model; using a preset valve opening degree database, performing a lookup operation on the air conditioner model and the current air conditioner current to obtain the valve opening degree corresponding to both the air conditioner model and the current air conditioner current; the valve opening degree database stores the correspondence between the air conditioner model, the current air conditioner current, and the valve opening degree.

[0009] In some embodiments, after triggering the electronic expansion valve to open according to the valve opening degree, the method further includes: accumulating a second adjustment time; if the second adjustment time is greater than a second preset time, reacquiring and recording the air conditioning current; if the current air conditioning current is greater than or equal to the preset frequency reduction current and the current difference is less than a second preset difference, determining the compressor frequency based on the current air conditioning current, and triggering the compressor to run according to the compressor frequency until the current air conditioning current is less than the preset frequency reduction current; if the current air conditioning current is greater than or equal to the preset frequency reduction current and the current difference is greater than a second preset difference, re-determining the valve opening degree based on the current air conditioning current, and triggering the electronic expansion valve to open according to the valve opening degree.

[0010] In some embodiments, determining the compressor frequency based on the current air conditioner current includes: acquiring the current compressor frequency; when the current air conditioner current is within a first preset range, determining the difference between the current compressor frequency and the first preset frequency as the compressor frequency every first preset time period; when the current air conditioner current is within a second preset range, determining the difference between the current compressor frequency and the second preset frequency as the compressor frequency every second preset time period.

[0011] In some embodiments, the device for controlling an air conditioner includes: an acquisition module configured to acquire and record the air conditioner current; and an operation module configured to acquire a current operating mode when the air conditioner current is greater than or equal to a preset frequency reduction current; and to adjust the outdoor fan according to the current operating mode to reduce the air conditioner current.

[0012] In some embodiments, the apparatus for controlling an air conditioner includes a processor and a memory storing program instructions, the processor being configured to execute the method for controlling the air conditioner described above when the program instructions are executed.

[0013] In some embodiments, the air conditioner includes an air conditioner body, and the device for controlling the air conditioner described above is installed on the air conditioner body.

[0014] In some embodiments, the storage medium stores program instructions that, when executed, perform the method described above for controlling the air conditioner.

[0015] The method, apparatus, air conditioner, and storage medium for controlling an air conditioner provided in this disclosure can achieve the following technical effects: By acquiring and recording the air conditioner current, and when the air conditioner current is greater than or equal to a preset frequency reduction current, the current operating mode is acquired. The outdoor fan is adjusted according to the current operating mode to reduce the air conditioner current. Thus, since the outdoor fan affects the air conditioner current differently under different operating modes, adjusting the outdoor fan according to the current operating mode can better reduce the air conditioner current. When the air conditioner current is too high, the current is reduced by adjusting the outdoor fan, rather than by reducing the compressor frequency. This ensures that the air conditioner will not stop operating due to compressor shutdown, thus maintaining stable air conditioner operation.

[0016] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0017] 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:

[0018] Figure 1 This is a schematic diagram of the first method for controlling an air conditioner provided in this embodiment of the disclosure;

[0019] Figure 2 This is a schematic diagram of a second method for controlling an air conditioner provided in an embodiment of this disclosure;

[0020] Figure 3This is a schematic diagram of the first device for controlling an air conditioner provided in an embodiment of this disclosure;

[0021] Figure 4 This is a schematic diagram of a second device for controlling an air conditioner provided in an embodiment of this disclosure;

[0022] Figure 5 This is a schematic diagram of a wall-mounted air conditioner provided in an embodiment of this disclosure;

[0023] Figure 6 This is a schematic diagram of a vertical air conditioner provided in an embodiment of this disclosure. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] Unless otherwise stated, the term "multiple" means two or more.

[0027] 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.

[0028] 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.

[0029] In some embodiments, the air conditioning current is the compressor current.

[0030] In some embodiments, air conditioners typically have a frequency reduction program, which reduces the compressor's frequency when the air conditioner current reaches a certain value. This value is defined as the preset frequency reduction current.

[0031] This application applies to air conditioners and is used to maintain stable operation. It acquires and records the air conditioner's current. When the air conditioner current is greater than or equal to a preset frequency reduction current, the current operating mode is determined. Based on the current operating mode, the outdoor fan is adjusted to reduce the air conditioner current. Thus, when the air conditioner current is too high, it is reduced by adjusting the outdoor fan, rather than by reducing the compressor frequency. This prevents the air conditioner from ceasing operation due to compressor shutdown and maintains stable air conditioner operation.

[0032] Combination Figure 1 As shown, this disclosure provides a first method for controlling an air conditioner, comprising:

[0033] Step S101: The air conditioner acquires and records the air conditioner current.

[0034] Step S102: When the air conditioner current is greater than or equal to the preset frequency reduction current, the air conditioner obtains the current operating mode; and adjusts the outdoor fan according to the current operating mode to reduce the air conditioner current.

[0035] The method for controlling an air conditioner provided in this disclosure acquires and records the air conditioner current. When the air conditioner current is greater than or equal to a preset frequency reduction current, the current operating mode is obtained. The outdoor fan is adjusted according to the current operating mode to reduce the air conditioner current. Thus, when the air conditioner current is too high, it is reduced by adjusting the outdoor fan, rather than by reducing the compressor frequency. This ensures that the air conditioner will not stop operating due to compressor shutdown, maintaining stable air conditioner operation.

[0036] Optionally, adjusting the outdoor fan according to the current operating mode includes: acquiring the outdoor ambient temperature and the current fan speed; if the current operating mode is cooling mode, determining a first correction parameter based on the outdoor ambient temperature; determining a first target speed by summing the current fan speed and the first correction parameter; triggering the outdoor fan to operate at the first target speed; and / or, if the current operating mode is heating mode, determining a second correction parameter based on the outdoor ambient temperature; determining a second target speed by the difference between the current fan speed and the second correction parameter; triggering the outdoor fan to operate at the second target speed. Here, the current operating mode is the mode in which the air conditioner is operating when the instruction to acquire the current operating mode is executed. Thus, since the fan speed affects the air conditioner current differently under different operating modes, adjusting the outdoor fan according to the current operating mode can better reduce system pressure, thereby reducing the air conditioner current.

[0037] Optionally, determining the first correction parameter based on the outdoor ambient temperature includes: using a preset first parameter database to perform a lookup operation on the outdoor ambient temperature to obtain the first parameter calculation formula corresponding to the outdoor ambient temperature; calculating the first correction parameter using the current fan speed based on the first parameter calculation formula; the first parameter database stores the correspondence between the outdoor ambient temperature and the first parameter calculation formula.

[0038] In some embodiments, Table 1 is an example table showing the correspondence between outdoor ambient temperature and the calculation formula of the first parameter in the first parameter database. As shown in Table 1, when the outdoor ambient temperature Tao is greater than or equal to 32 degrees Celsius, the calculation formula of the first parameter is "first correction parameter = 25% * current fan speed", where "*" represents multiplication.

[0039]

[0040]

[0041] Table 1

[0042] Optionally, determining the second correction parameter based on the outdoor ambient temperature includes: using a preset second parameter database to perform a lookup operation on the outdoor ambient temperature to obtain the calculation formula for the second parameter corresponding to the outdoor ambient temperature; calculating the second correction parameter using the current fan speed based on the second parameter calculation formula; the second parameter database stores the correspondence between the outdoor ambient temperature and the second parameter calculation formula.

[0043] In some embodiments, Table 2 is an example table showing the correspondence between outdoor ambient temperature and the calculation formula of the second parameter in the second parameter database. As shown in Table 2, when the outdoor ambient temperature Tao is greater than or equal to 6 degrees Celsius, the calculation formula of the second parameter is "second correction parameter = 25% * current fan speed", where "*" represents multiplication.

[0044] Tao≥6℃ Second correction parameter = 25% * current fan speed -15℃≤Tao<6℃ Second correction parameter = 10% * current fan speed -23℃≤Tao<-15℃ Second correction parameter = 5% * current fan speed Human<-23℃ Second correction parameter = 0 * current fan speed

[0045] Table 2

[0046] Optionally, after adjusting the outdoor fan according to the current operating mode, the process further includes: accumulating a first adjustment duration. If the first adjustment duration is longer than a first preset duration, the air conditioning current is re-acquired and recorded. The difference between the current air conditioning current and the historical air conditioning current is determined as the current difference. The current air conditioning current is the air conditioning current ranked last in the air conditioning current list. The historical air conditioning current is the air conditioning current ranked second to last in the air conditioning current list. Several air conditioning currents are recorded in the air conditioning current list in chronological order of acquisition time. If the current air conditioning current is greater than or equal to the preset frequency reduction current and the current difference is less than the first preset difference, the valve opening is determined based on the current air conditioning current, triggering the electronic expansion valve to open according to the valve opening. If the current air conditioning current is greater than or equal to the preset frequency reduction current and the current difference is greater than the first preset difference, the outdoor fan is readjusted according to the current operating mode. The first adjustment duration is accumulated from zero. The first adjustment duration is, for example, 5 seconds. Thus, the fan speed of the outdoor fan is first adjusted. After adjusting the fan speed, it is determined whether the adjusted fan speed can reduce the air conditioning current. Only when adjusting the fan speed fails to significantly reduce the air conditioning current should the electronic expansion valve be adjusted to lower it. This allows for maximum reduction of air conditioning current without throttling the compressor.

[0047] Furthermore, determining the valve opening based on the current air conditioner current includes: obtaining the air conditioner model; and using a pre-set valve opening database, performing a lookup operation on the air conditioner model and the current air conditioner current to obtain the valve opening corresponding to both. The valve opening database stores the correspondence between air conditioner model, current air conditioner current, and valve opening. Thus, since different types of air conditioners control the electronic expansion valve opening differently, using the air conditioner model and current air conditioner current allows for more accurate and reasonable control of the electronic expansion valve.

[0048] Optionally, after triggering the electronic expansion valve to open according to the valve opening degree, the process further includes: accumulating a second adjustment time; if the second adjustment time is greater than a second preset time, re-acquiring and recording the air conditioning current; if the current air conditioning current is greater than or equal to a preset frequency reduction current and the current difference is less than a second preset difference, determining the compressor frequency based on the current air conditioning current; triggering the compressor to run according to the compressor frequency until the current air conditioning current is less than the preset frequency reduction current. If the current air conditioning current is greater than or equal to the preset frequency reduction current and the current difference is greater than a second preset difference, re-determining the valve opening degree based on the current air conditioning current, and triggering the electronic expansion valve to open according to the valve opening degree. The "accumulated second adjustment time" means accumulating the second adjustment time from zero. The second adjustment time is, for example, 10 seconds. This first adjusts the valve opening degree of the electronic expansion valve. After adjusting the valve opening degree, it is determined whether the adjusted valve opening degree can reduce the air conditioning current. Only if the adjusted valve opening degree cannot effectively reduce the air conditioning current is the compressor frequency adjusted to reduce the air conditioning current. This results in a lower compressor frequency reduction, thereby reducing the probability of compressor shutdown and increasing the probability of stable air conditioning operation.

[0049] Furthermore, determining the compressor frequency based on the current air conditioner current includes: acquiring the current compressor frequency; when the current air conditioner current is within a first preset range, determining the difference between the current compressor frequency and the first preset frequency as the compressor frequency every first preset time interval; when the current air conditioner current is within a second preset range, determining the difference between the current compressor frequency and the second preset frequency as the compressor frequency every second preset time interval. Thus, since different air conditioner current magnitudes have different effects on the air conditioner, the compressor frequency is adjusted differently depending on the range of the current air conditioner current. This allows for more reasonable control of the compressor frequency, reducing the probability of compressor shutdown and increasing the probability of stable air conditioner operation.

[0050] In some embodiments, the first preset range is between a preset frequency reduction current and a preset limit current. When the current air conditioner current is within the first preset range, the difference between the current compressor frequency and 1 Hz is determined as the compressor frequency every 10 seconds. The second preset range is greater than the preset limit current. When the current air conditioner current is within the second preset range, the difference between the current compressor frequency and 1 Hz is determined as the compressor frequency every 5 seconds. The preset limit current is the sum of the preset frequency reduction current and the preset frequency protection current.

[0051] Combination Figure 2 As shown, this disclosure provides a second method for controlling an air conditioner, comprising:

[0052] Step S201: The air conditioner acquires and records the air conditioner current, and then executes step S202.

[0053] Step S202: The air conditioner determines whether the air conditioner current is greater than or equal to the preset frequency reduction current. If the air conditioner current is greater than or equal to the preset frequency reduction current, step S203 is executed; otherwise, step S214 is executed.

[0054] Step S203: The air conditioner obtains the current operating mode; adjusts the outdoor fan according to the current operating mode, and then executes step S204.

[0055] Step S204: The air conditioner accumulates the first adjustment time. If the first adjustment time is longer than the first preset time, the air conditioner current is reacquired and recorded, and then step S205 is executed.

[0056] In step S205, the air conditioner determines the difference between the current air conditioner current and the historical air conditioner current as the current difference value, and then executes step S206.

[0057] Step S206: The air conditioner determines whether the current air conditioner current is greater than or equal to the preset frequency reduction current. If the current air conditioner current is greater than or equal to the preset frequency reduction current, step S207 is executed; otherwise, step S214 is executed.

[0058] In step S207, the air conditioner determines whether the current difference is less than the first preset difference. If the current difference is less than the first preset difference, step S208 is executed; otherwise, step S203 is executed.

[0059] Step S208: The air conditioner determines the valve opening degree based on the current air conditioner current, triggers the electronic expansion valve to open according to the valve opening degree, and then executes step S209.

[0060] Step S209: The air conditioner accumulates the second adjustment time. If the second adjustment time is longer than the second preset time, the air conditioner current is acquired and recorded again, and then step S210 is executed.

[0061] In step S210, the air conditioner re-acquires the current difference value and then executes step S211.

[0062] Step S211: The air conditioner re-determines whether the current air conditioner current is greater than or equal to the preset frequency reduction current. If the current air conditioner current is greater than or equal to the preset frequency reduction current, step S212 is executed; otherwise, step S214 is executed.

[0063] In step S212, the air conditioner determines whether the current difference is less than the second preset difference. If the current difference is less than the second preset difference, step S213 is executed; otherwise, step S208 is executed.

[0064] In step S213, the air conditioner determines the compressor frequency based on the current air conditioner current and triggers the compressor to run at the compressor frequency until the current air conditioner current is less than the preset frequency reduction current.

[0065] Step S214: End the process.

[0066] The method for controlling an air conditioner provided in this disclosure involves acquiring and recording the air conditioner's current. When the air conditioner current is greater than or equal to a preset frequency reduction current, the outdoor fan is adjusted according to the current operating mode. After adjusting the outdoor fan for a period of time, the air conditioner current is acquired again. Based on the difference between the acquired air conditioner current and the previously acquired current, it is determined whether to adjust the electronic expansion valve. If the conditions for adjusting the electronic expansion valve are met, the electronic expansion valve is adjusted. Then, the air conditioner current is acquired again, and based on the difference between the acquired air conditioner current and the previously acquired current, it is determined whether to adjust the compressor. If the conditions for adjusting the compressor are met, the compressor is adjusted. In this way, other components of the air conditioner are adjusted first to reduce the air conditioner current. Only when the air conditioner current still does not meet the conditions is the compressor adjusted. This results in a lower compressor frequency reduction, thereby reducing the probability of compressor shutdown and increasing the probability of stable air conditioner operation.

[0067] Combination Figure 3 As shown in the figure, this disclosure presents a first device 1 for controlling an air conditioner, comprising: an acquisition module 2 and an operation module 3. The acquisition module 2 is configured to acquire and record the air conditioner current; the operation module 3 is configured to acquire the current operating mode when the air conditioner current is greater than or equal to a preset frequency reduction current; and adjust the outdoor fan according to the current operating mode to reduce the air conditioner current.

[0068] The air conditioning control device provided in this embodiment acquires and records the air conditioning current through an acquisition module. When the air conditioning current is greater than or equal to a preset frequency reduction current, the operation module acquires the current operating mode. Based on the current operating mode, the outdoor fan is adjusted to reduce the air conditioning current. Thus, when the air conditioning current is too high, it is reduced by adjusting the outdoor fan, rather than by reducing the compressor frequency. This ensures that the air conditioner will not stop operating due to compressor shutdown, maintaining stable air conditioning operation.

[0069] Combination Figure 4 As shown, this disclosure provides a second device 4 for controlling an air conditioner, including a processor 5 and a memory 6. Optionally, the device may further include a communication interface 7 and a bus 8. The processor 5, communication interface 7, and memory 6 can communicate with each other via the bus 8. The communication interface 7 can be used for information transmission. The processor 5 can call logical instructions in the memory 6 to execute the method for controlling the air conditioner described in the above embodiment.

[0070] Furthermore, the logical instructions in the aforementioned memory 6 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0071] The memory 6, 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 5 executes the program instructions / modules stored in the memory 6 to perform functional applications and data processing, thereby implementing the method for controlling the air conditioner described in the above embodiments.

[0072] The memory 6 may include a program storage area and a data storage area. The program storage area may store the operating system and at least one application program required for a function; the data storage area may store data created based on the use of the air conditioner, etc. Furthermore, the memory 6 may include high-speed random access memory and may also include non-volatile memory.

[0073] The apparatus for controlling an air conditioner according to embodiments of this disclosure acquires and records the air conditioner current. When the air conditioner current is greater than or equal to a preset frequency reduction current, the current operating mode is acquired. The outdoor fan is adjusted according to the current operating mode to reduce the air conditioner current. Thus, when the air conditioner current is too high, it is reduced by adjusting the outdoor fan, rather than by reducing the compressor frequency. This prevents the air conditioner from ceasing operation due to compressor shutdown and maintains stable air conditioner operation.

[0074] Combination Figure 5 As shown, this embodiment of the present disclosure provides a wall-mounted air conditioner 9, including: an air conditioner body, and the aforementioned device 1 (4) for controlling the air conditioner. The device 1 (4) for controlling the air conditioner is installed on the air conditioner body. The installation relationship described herein is not limited to placement inside the air conditioner, but also includes installation connections 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 1 (4) for controlling the air conditioner can be adapted to suitable air conditioner bodies to achieve other feasible embodiments.

[0075] Combination Figure 6As shown, this embodiment of the present disclosure provides a vertical air conditioner 10, including: an air conditioner body, and the aforementioned device 1 (4) for controlling the air conditioner. The device 1 (4) for controlling the air conditioner is installed in the air conditioner body. The installation relationship described herein is not limited to placement inside the air conditioner, but also includes installation connections 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 1 (4) for controlling the air conditioner can be adapted to suitable air conditioner bodies to achieve other feasible embodiments.

[0076] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for controlling an air conditioner.

[0077] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0078] 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, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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 in that, include: Acquire and record the air conditioner current; When the air conditioner current is greater than or equal to the preset frequency reduction current, the current operating mode is obtained; Adjust the outdoor fan according to the current operating mode to reduce the air conditioning current; After adjusting the outdoor fan according to the current operating mode, the method further includes: accumulating a first adjustment time; if the first adjustment time is greater than a first preset time, re-acquiring and recording the air conditioning current; determining the difference between the current air conditioning current and the historical air conditioning current as the current difference; the current air conditioning current is the air conditioning current ranked last in the air conditioning current list; the historical air conditioning current is the air conditioning current ranked second to last in the air conditioning current list; the air conditioning current list records several air conditioning currents in the order of acquisition time; if the current air conditioning current is greater than or equal to the preset frequency reduction current and the current difference is less than the first preset difference, determining the valve opening degree according to the current air conditioning current, and triggering the electronic expansion valve to open according to the valve opening degree; if the current air conditioning current is greater than or equal to the preset frequency reduction current and the current difference is greater than the first preset difference, readjusting the outdoor fan according to the current operating mode.

2. The method according to claim 1, characterized in that, Adjusting the outdoor fan according to the current operating mode includes: Obtain the outdoor ambient temperature and current fan speed; When the current operating mode is cooling mode, a first correction parameter is determined based on the outdoor ambient temperature; the sum of the current fan speed and the first correction parameter is determined as a first target speed; the outdoor fan is triggered to operate at the first target speed; and / or, When the current operating mode is heating mode, a second correction parameter is determined based on the outdoor ambient temperature; the difference between the current fan speed and the second correction parameter is determined as the second target speed; and the outdoor fan is triggered to operate at the second target speed.

3. The method according to claim 1, characterized in that, Determine the valve opening based on the current air conditioning current, including: Get the air conditioner model; Using a preset valve opening database, a lookup operation is performed on the air conditioner model and the current air conditioner current to obtain the valve opening corresponding to both the air conditioner model and the current air conditioner current; the valve opening database stores the correspondence between the air conditioner model, the current air conditioner current and the valve opening.

4. The method according to claim 1, characterized in that, After the electronic expansion valve is triggered to open according to the stated valve opening degree, the system further includes: The cumulative second adjustment duration; If the second adjustment duration is longer than the second preset duration, the air conditioner current is reacquired and recorded. When the current air conditioner current is greater than or equal to the preset frequency reduction current and the current difference is less than the second preset difference, the compressor frequency is determined according to the current air conditioner current, and the compressor is triggered to run at the compressor frequency until the current air conditioner current is less than the preset frequency reduction current. If the current air conditioner current is greater than or equal to the preset frequency reduction current and the current difference is greater than the second preset difference, the valve opening is re-determined based on the current air conditioner current, and the electronic expansion valve is triggered to open according to the valve opening.

5. The method according to claim 4, characterized in that, Determine the compressor frequency based on the current air conditioner current, including: Get the current compressor frequency; When the current air conditioner current is within the first preset range, the difference between the current compressor frequency and the first preset frequency is determined as the compressor frequency every first preset time interval. When the current air conditioner current is within the second preset range, the difference between the current compressor frequency and the second preset frequency is determined as the compressor frequency every second preset time interval.

6. A device for controlling an air conditioner, characterized in that, The apparatus includes a method for controlling an air conditioner as described in claim 1, wherein the apparatus comprises: The acquisition module is configured to acquire and record the air conditioner current; The operation module is configured to, when the air conditioner current is greater than or equal to a preset frequency reduction current, obtain the current operating mode; and adjust the outdoor fan according to the current operating mode to reduce the air conditioner current.

7. A device for controlling an air conditioner, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute, when running the program instructions, the method for controlling an air conditioner as described in any one of claims 1 to 5.

8. An air conditioner, characterized in that, include: Air conditioner main body; The device for controlling an air conditioner as described in claim 7 is installed on the air conditioner body.

9. A storage medium storing program instructions, characterized in that, When the program instructions are executed, they perform the method for controlling the air conditioner as described in any one of claims 1 to 5.

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