Air conditioner, control method thereof, computer device and readable storage medium

Abstract

The application provides an air conditioner, a control method thereof, a computer device and a readable storage medium. The control method comprises: if the operating frequency of a compressor is less than or equal to a preset trigger frequency, determining whether at least one of the following three conditions is met: a first condition that the operating time of the compressor reaches a first preset time, a second condition that the exhaust temperature of the compressor is less than a first preset temperature, and a third condition that the operating time of the compressor reaches a second preset time and the exhaust temperature of the compressor is less than an exhaust temperature entering an ultralow-frequency oil return mode, wherein the second preset time is less than the first preset time; and if at least one of the above three conditions is met, increasing the operating frequency of the compressor and operating for a preset frequency-increasing time. The control method can solve the problem of tictactoe sound of the compressor when operating in a low frequency band.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to an air conditioner and its control method, a computer device, and a readable storage medium. Background Technology

[0002] Some air conditioners produce a noticeable clicking sound from the compressor in the outdoor unit during low-frequency cooling operation, especially in the 16Hz to 25Hz frequency range. This clicking sound occurs because as the compressor operates at lower frequencies, the exhaust temperature gradually decreases, leading to a gradual increase in the amount of liquid refrigerant exiting the evaporator. This increased liquid refrigerant entering the compressor cavity causes a rise in pressure within the compression chamber. During compressor operation, when the amount of liquid refrigerant reaches a certain level, the pressure in the compression chamber momentarily increases to a critical point: the sliding vane separation force exceeds the sliding vane compression force. This causes the sliding vanes to detach from the rotor and collide, producing the clicking sound. The clicking sound can be identified as being caused by liquid compression during low-frequency operation, leading to the sliding vanes detaching. Experiments revealed that when a clicking sound was produced, the sight glass at the suction pipe was mostly filled with foam, accompanied by a sudden decrease in capacity. Literature analysis indicated that this was due to the mixing of lubricating oil and refrigerant. The mixing of lubricating oil lowered the original saturation temperature of the refrigerant, increasing the subcooling of the working medium and inhibiting the phase change phenomenon. At the same time, the mixing of lubricating oil increased the viscosity of the working medium, resulting in a larger thermal resistance at the boundary layer of the evaporator copper tubes. This inhibited heat exchange between the inner surface of the threaded tube and the refrigerant, leading to a decrease in indoor heat exchange capacity and a reduction in suction superheat. Unevaporated foam entered the compressor suction chamber and oil sump, causing severe cavitation. The foam filled the entire pump body, and the sliding vanes disengaged after the compressor was drawn in, producing the clicking sound.

[0003] To avoid the clicking noise, common solutions include adding an electronic expansion valve or raising the lower limit of compressor frequency operation. However, the former significantly increases the overall cost of the unit, placing a burden on the company, and is therefore not advisable. The latter, which changes the lower limit of frequency operation and raises the compressor's operating limit, causes the inverter to frequently increase and decrease the frequency, making it difficult to accurately control the indoor air temperature. This can lead to a decrease in overall comfort, negatively impacting user experience, and increasing power consumption. Summary of the Invention

[0004] The first objective of this invention is to provide a control method for an air conditioner that can solve the problem of clicking noise that occurs when the compressor is running at low frequencies, improve the superheat of the intake air, reduce the generation of foam in the intake chamber of the compressor, minimize capacity attenuation, and improve the performance of the air conditioner.

[0005] A second objective of this invention is to provide an air conditioner that implements the above-described control method.

[0006] A third objective of the present invention is to provide a computer device for implementing the above-described control method.

[0007] A fourth objective of this invention is to provide a readable storage medium for implementing the above-described control method.

[0008] To achieve the aforementioned first objective, the present invention provides a control method for an air conditioner. The control method includes: if the operating frequency of the compressor is less than or equal to a preset trigger frequency, determining whether at least one of the following three conditions is met: the first condition is that the compressor's operating time reaches a first preset time; the second condition is that the compressor's exhaust temperature is less than a first preset temperature; and the third condition is that the compressor's operating time reaches a second preset time and the compressor's exhaust temperature is less than the exhaust temperature required to enter the ultra-low frequency oil return mode; wherein, the second preset time is less than the first preset time; if at least one of the above three conditions is met, then the compressor's operating frequency is increased and a preset frequency increase time is performed, and the increased operating frequency is greater than the preset trigger frequency.

[0009] As can be seen from the above solution, this invention uses the compressor operating frequency of the outdoor unit of the air conditioner as a trigger condition, and then uses the compressor's operating time, compressor exhaust temperature, and both as three judgment conditions to determine whether to increase the operating frequency. The final frequency control result is then obtained, i.e., how much the frequency is increased and the increased operating time, thereby eliminating the clicking noise, improving comfort, and enhancing the user experience. Compared with adding an expansion valve, the solution proposed in this proposal significantly saves costs. Furthermore, it avoids the problem of inaccurate control of indoor air outlet temperature caused by frequent frequency increases and decreases, thus improving comfort. Simultaneously, the three judgment conditions correspond to different air conditioner operating conditions, striving to comprehensively cover the causes of clicking noise caused by low-frequency compressor operation, and finally, increasing the frequency for a certain duration solves the low-frequency clicking noise problem. In addition, this control method not only solves the clicking noise problem of the compressor operating at low frequencies, but also increases the suction superheat, reduces foam generation in the compressor's suction chamber, minimizes the reduction in air conditioning capacity, and improves air conditioner performance.

[0010] A preferred embodiment is that if the compressor's running time reaches a first preset time, the step of increasing the compressor's operating frequency and running for a preset frequency increase time includes: after the compressor's running time reaches the first preset time, determining whether the exhaust temperature is greater than a second preset temperature; if so, increasing the operating frequency to the first preset frequency; otherwise, increasing the operating frequency to the second preset frequency, wherein the first preset frequency is less than the second preset frequency.

[0011] A further proposed approach is to set the first preset frequency within the range of 34Hz to 36Hz.

[0012] A further option is to set the second preset frequency in the range of 47Hz to 49Hz.

[0013] A preferred embodiment is that if the compressor's exhaust temperature is lower than a first preset temperature, the step of increasing the compressor's operating frequency and running for a preset frequency increase time includes: increasing the operating frequency to the range of 47Hz to 49Hz.

[0014] A preferred embodiment is that if the compressor's operating time reaches the second preset time and the compressor's discharge temperature is lower than the discharge temperature for entering the ultra-low frequency oil return mode, the step of increasing the compressor's operating frequency and running for a preset frequency increase time includes: increasing the operating frequency to the range of 47Hz to 49Hz.

[0015] A preferred approach is to preset the trigger frequency to be in the range of 18Hz to 20Hz.

[0016] To achieve the second objective mentioned above, the present invention provides an air conditioner, which includes a processor that executes a program stored in a memory to implement the control method of the air conditioner described above.

[0017] To achieve the third objective mentioned above, the present invention provides a computer device including a processor, which executes a program stored in a memory to implement the above-described air conditioner control method.

[0018] To achieve the fourth objective mentioned above, the present invention provides a readable storage medium having a program stored thereon, which, when executed by a processor, implements the aforementioned air conditioner control method. Attached Figure Description

[0019] Figure 1 This is a flowchart of an embodiment of the control method for the air conditioner of the present invention.

[0020] Figure 2 This is a graph showing the operating frequency of the air conditioner in Comparative Example 1.

[0021] Figure 3 This is a graph showing the operating frequency of the air conditioner in Comparative Example 2.

[0022] Figure 4 This is a graph showing the operating frequency of the air conditioner in Comparative Example 3.

[0023] Figure 5 This is a graph showing the operating frequency of the air conditioner in Comparative Example 4.

[0024] Figure 6 This is a graph showing the operating frequency of the air conditioner in Comparative Example 5.

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0026] Various exemplary embodiments of the invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the invention or its application or use. The invention can be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the invention thorough and complete, and to fully express the scope of the invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0027] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, without excluding the possibility of encompassing other elements. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] In this invention, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may be not directly connected to the other devices but have an intermediary device.

[0029] All terms used in this invention (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having the meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0030] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0031] Examples of air conditioners and their control methods:

[0032] The air conditioner in this embodiment includes a processor, which executes a program stored in a memory to implement the following air conditioner control method.

[0033] The control method for the air conditioner includes: if the compressor's operating frequency is less than or equal to a preset trigger frequency, determining whether at least one of the following conditions is met: a first condition, the compressor's operating time reaches a first preset time; a second condition, the compressor's exhaust temperature is less than a first preset temperature; a third condition, the compressor's operating time reaches a second preset time and the compressor's exhaust temperature is less than the exhaust temperature required to enter the ultra-low frequency oil return mode, wherein the second preset time is less than the first preset time. If at least one of the above three conditions is met, the compressor's operating frequency is increased and a preset frequency increase time is performed, and the increased operating frequency is greater than 20Hz. Optionally, the preset trigger frequency is in the range of 18Hz to 20Hz, the first preset time is in the range of 27 minutes to 35 minutes, the second preset time is in the range of 5 minutes to 7 minutes, and the preset frequency increase time is in the range of 0.5 minutes to 1 minute. Preferably, the preset trigger frequency is 20Hz, the first preset time is 30 minutes, the second preset time is 5 minutes, the first preset temperature is 34℃, and the preset frequency increase time is 1 minute.

[0034] The step of increasing the compressor's operating frequency and running for a preset frequency increase time if the compressor's operating time reaches a first preset time includes: after the compressor's operating time reaches the first preset time, determining whether the exhaust temperature is greater than a second preset temperature; if so, increasing the operating frequency to the first preset frequency; otherwise, increasing the operating frequency to the second preset frequency, wherein the first preset frequency is less than the second preset frequency. Optionally, the first preset frequency is 34Hz to 36Hz, and the second preset frequency is 47Hz to 49Hz. Preferably, the first preset frequency is 35Hz, the second preset frequency is 48Hz, and the second preset temperature is 37℃.

[0035] If the compressor's exhaust temperature is lower than the first preset temperature, the step of increasing the compressor's operating frequency and running for a preset frequency increase time includes: increasing the operating frequency to 48Hz.

[0036] If the compressor's running time reaches the second preset time and the compressor's exhaust temperature is lower than the exhaust temperature for entering the ultra-low frequency oil return mode, the step of increasing the compressor's operating frequency and running for the preset frequency increase time includes: increasing the operating frequency to 48Hz.

[0037] Specifically, see Figure 1 The control method for air conditioners includes the following steps:

[0038] First, execute step S1. When the compressor's operating frequency is less than or equal to the preset trigger frequency, determine whether the compressor's exhaust temperature is less than 34°C.

[0039] If so, proceed to step S11, which increases the compressor's operating frequency to 48Hz and runs it for 1 minute.

[0040] If not, proceed to step S12 to determine whether the compressor has been running for 30 minutes.

[0041] If the running time reaches 30 minutes, proceed to step S2 to determine whether the exhaust temperature is greater than 37°C.

[0042] If the exhaust temperature is greater than 37 degrees, proceed to step S21, increase the compressor's operating frequency to 35Hz and run for 1 minute.

[0043] If the exhaust temperature is less than or equal to 37 degrees, proceed to step S11, increase the compressor's operating frequency to 48 Hz and run for 1 minute.

[0044] If the running time has not reached 30 minutes, proceed to step S3 to determine whether the compressor's running time has reached 5 minutes.

[0045] If the running time reaches 5 minutes, then execute step S4 to determine whether the exhaust temperature is lower than the exhaust temperature when entering the ultra-low frequency oil return mode. If so, then execute step S11 to increase the compressor's operating frequency to 48Hz and run for 1 minute.

[0046] After performing step S11 above, the compressor's operating frequency is increased to 48Hz and run for 1 minute, then the compressor's operating frequency is reduced to the set operating frequency.

[0047] The results, verified by experiments, are as follows:

[0048] First, when the outdoor ambient temperature is 25℃, the cooling mode is activated, and the indoor fan is in silent mode, the second condition is more likely to trigger the frequency increase. The interval between the two frequency increases is about 10 minutes, and there is no clicking sound during the verification process.

[0049] Second, when the outdoor ambient temperature is 35℃, the cooling mode is on and the indoor fan is at its highest setting, the first condition is more likely to trigger the frequency increase. The interval between the two frequency increases is about 30 minutes, and there is no clicking sound during the verification process.

[0050] Third, by adding the control method in this embodiment, during the verification process, the indoor ambient temperature fluctuated by only 1°C to 2°C, and there was no significant fluctuation that affected the user experience.

[0051] As can be seen from the above solution, this invention uses the compressor operating frequency of the outdoor unit of the air conditioner as a trigger condition, and then uses the compressor's operating time, compressor exhaust temperature, and both compressor operating time and exhaust temperature as three judgment conditions to determine whether to increase the operating frequency. The final frequency control result is then obtained, i.e., how much the frequency is increased and the increased operating time, thereby eliminating the clicking noise, improving comfort, and enhancing the user experience. Compared with adding an expansion valve, the solution proposed in this proposal significantly saves costs. Furthermore, it avoids the problem of inaccurate control of indoor air outlet temperature caused by frequent frequency increases and decreases, thus improving comfort. Simultaneously, the three judgment conditions correspond to different air conditioner operating conditions, striving to comprehensively cover the causes of clicking noise caused by low-frequency compressor operation, and finally, increasing the frequency for a certain duration solves the low-frequency clicking noise problem. In addition, this control method not only solves the clicking noise problem of the compressor operating at low frequencies, but also increases the suction superheat, reduces foam generation in the compressor's suction chamber, minimizes capacity attenuation, and improves the performance of the air conditioner.

[0052] Comparative Example 1:

[0053] The operating frequency curve of the air conditioner is shown below. Figure 2 As shown, the frequency is increased or decreased every 30 seconds for 30 minutes. That is, it runs at a frequency of 10Hz for 30 seconds, then increases to 16Hz for 30 seconds, then decreases to 10Hz for 30 seconds, and so on for 30 minutes.

[0054] Experiments revealed that under this operating frequency curve, the clicking sound persisted without any weakening or decreasing trend.

[0055] Comparative Example 2:

[0056] The operating frequency curve of the air conditioner is shown below. Figure 3 As shown, when the compressor operates at a frequency less than or equal to 20Hz, the frequency is increased to 35Hz for 20 seconds after the clicking sound appears. Then, the operating frequency is reduced to the lower limit frequency of 10Hz. The experiment found that the clicking sound disappeared after the frequency was increased. After maintaining the set frequency of 10Hz for 2 to 7 minutes, the clicking sound reappeared, showing a slight improvement. In this comparative example, the conditions for increasing the compressor frequency are: the compressor running time reaches 30 minutes and the compressor exhaust temperature is less than 40℃.

[0057] As can be seen from Comparative Examples 1 and 2, increasing the frequency can improve the exhaust temperature and the pressure difference between the intake and exhaust, but the instantaneous pressure of the compressed liquid is relatively large. It must be increased to a frequency that allows the oil in the system to circulate, so that the refrigerant in the evaporator can fully evaporate and be carried back to the refrigeration oil in the system, thereby reducing the oil film thickness.

[0058] Comparative Example 3:

[0059] The operating frequency curve of the air conditioner is shown below. Figure 4 As shown, the compressor operates at a frequency of less than 20Hz for 30 minutes. After that, the frequency is increased to 35Hz and operated for 1 minute. Then, the frequency is reduced to 20Hz within 8 minutes. At this time, the exhaust temperature is 35℃. Then, the frequency is reduced to 10Hz within 9 minutes. A noticeable clicking sound appears after 10 minutes and 11 seconds.

[0060] As shown in Comparative Example 3, increasing the frequency to the target frequency and extending the running time can delay the appearance of the "da da" sound.

[0061] Comparative Example 4:

[0062] The operating frequency curve of the air conditioner is shown below. Figure 5 As shown, after the compressor operates at a frequency less than 20Hz and the exhaust temperature is less than 40℃, the frequency is increased to 35Hz and run for 1 minute. Then, the operating frequency is reduced to 20Hz, and after 5 minutes of frequency reduction, the exhaust temperature drops to 39℃. Then, after 2 minutes, the frequency is increased to 35Hz again and run for 1 minute. The interval between the two frequency increases is 7 minutes. The frequency increase is frequent, and no obvious clicking sound is observed during the verification process.

[0063] As can be seen from Comparative Example 4, although no clicking sound appeared during the verification process, the interval between the two frequency increases and decreases was only 7 minutes, which made it easy to frequently increase and decrease the frequency.

[0064] Comparative Example 5:

[0065] The operating frequency curve of the air conditioner is shown below. Figure 6 As shown, the compressor is set to run at 16Hz. After running at 46Hz for 1 minute, when the frequency is reduced, it is reduced by 1Hz every 10 seconds after the running frequency is less than 26Hz, while the speed of the external fan is kept at 450 rpm.

[0066] The verification results are as follows: In the first case, when the indoor fan is in silent mode, the indoor ambient temperature is between 25℃ and 28℃, and the outdoor ambient temperature is between 32℃ and 33℃, when the operating frequency is increased to 46Hz and run for 1 minute, the exhaust temperature is 46℃. Then, after the frequency is reduced to 16Hz and run for about 8 minutes, a noticeable clicking sound appears, and the exhaust temperature is 36℃.

[0067] In the second scenario, when the internal fan is in the highest setting, the indoor ambient temperature is between 24°C and 29°C, and the outdoor ambient temperature is between 29°C and 32°C, after the operating frequency is increased to 46Hz and run for 1 minute, the highest exhaust temperature is 50°C. Then, after the frequency is reduced to 16Hz and run for about 17 minutes, a noticeable clicking sound appears, at which point the exhaust temperature is 36°C.

[0068] In the third scenario, when the internal fan is at its lowest setting, the indoor ambient temperature is between 24°C and 26°C, and the outdoor ambient temperature is between 30°C and 32°C, the highest exhaust temperature is 50°C after the operating frequency is increased to 46Hz and run for 1 minute. Then, after the frequency is reduced to 16Hz and run for about 11 minutes, a noticeable clicking sound appears, at which point the exhaust temperature is 34°C.

[0069] As shown in Comparative Example 5, by controlling the rate of frequency reduction, the duration of the "da-da" sound can be slowed down, with the longest "da-da" sound reproduction time reaching 17 minutes.

[0070] As can be seen from the above, firstly, controlling the frequency increase by adjusting the exhaust temperature can prevent the exhaust temperature from being too low, reducing the amount of liquid refrigerant entering the compressor cavity for compression and suppressing the clicking noise, but this will result in frequent frequency increases and decreases. Secondly, by changing the frequency decrease rate, the rate of exhaust temperature decay can be slowed down, thereby controlling liquid carryover in the system's suction. Thirdly, reducing the outdoor fan speed increases the overall exhaust temperature, which in turn increases the condensing and evaporating temperatures. This improves the dryness of the refrigerant in the indoor unit, facilitating the return of the refrigerant oil to the oil sump. Simultaneously, increasing the refrigerant oil temperature reduces liquid compression, thus lowering the likelihood of clicking noise.

[0071] Computer device embodiment:

[0072] The computer device of the present invention is a controller, including a processor and a memory, such as a microcontroller containing a central processing unit. Furthermore, the processor executes the computer program stored in the memory to implement the steps of the aforementioned air conditioner control method.

[0073] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0074] The memory can primarily include a program storage area and a data storage area. The program storage area can store the operating system and at least one application program required for a function (such as sound playback, image playback, etc.); the data storage area can store data created based on the use of the phone (such as audio data, phonebook, etc.). Furthermore, the memory can include high-speed random access memory, and can also include non-volatile memory, such as hard disks, RAM, plug-in hard disks, smart media cards (SMC), secure digital cards (SD cards), flash cards, at least one disk storage device, flash memory device, or other volatile solid-state storage devices.

[0075] Examples of computer-readable storage media:

[0076] The computer-readable storage medium of the present invention can be any form of storage medium that can be read by the processor of a computer device, including but not limited to non-volatile memory, volatile memory, ferroelectric memory, etc. The computer-readable storage medium stores a computer program. When the processor of the computer device reads and executes the computer program stored in the memory, the steps of the above-mentioned air conditioner control method can be implemented.

[0077] Computer programs include computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. Computer-readable media can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in computer-readable media can be appropriately added to or subtracted according to the requirements of legislation and patent practice in a jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electrical carrier signals and telecommunication signals.

[0078] Finally, it should be emphasized that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A control method for an air conditioner, characterized in that, include: If the compressor's operating frequency is less than or equal to the preset trigger frequency, determine whether the compressor's exhaust temperature is less than the first preset temperature. If the exhaust temperature is lower than the first preset temperature, the operating frequency of the compressor is increased to the second preset frequency and the compressor operates for a preset frequency increase time, and the increased operating frequency is greater than the preset trigger frequency. If the exhaust temperature is greater than or equal to the first preset temperature, then it is further determined whether the compressor's running time has reached the first preset time. If the compressor runs for a certain period of time, it is further determined whether the exhaust temperature is greater than the second preset temperature, and the second preset temperature is greater than the first preset temperature. If the exhaust temperature is greater than the second preset temperature, the operating frequency is increased to the first preset frequency; If the exhaust temperature is less than or equal to the second preset temperature, the operating frequency is increased to the second preset frequency, where the first preset frequency is less than the second preset frequency. If the compressor's operating time does not reach the first preset time, but the compressor's operating time reaches the second preset time and the compressor's exhaust temperature is lower than the exhaust temperature for entering the ultra-low frequency oil return mode, and the second preset time is less than the first preset time, then the compressor's operating frequency increases to the second preset frequency and operates for a preset frequency increase time.

2. The control method for an air conditioner according to claim 1, characterized in that: The first preset frequency is in the range of 34Hz to 36Hz.

3. The control method for an air conditioner according to claim 1, characterized in that: The second preset frequency is in the range of 47Hz to 49Hz.

4. The control method for an air conditioner according to any one of claims 1 to 3, characterized in that: The preset trigger frequency is in the range of 18Hz to 20Hz.

5. An air conditioner, characterized in that: The air conditioner includes a processor, which executes a program stored in a memory to implement the control method of the air conditioner as described in any one of claims 1 to 4.

6. A computer device, characterized in that: The computer device includes a processor that executes a program stored in a memory to implement the control method of the air conditioner as described in any one of claims 1 to 4.

7. A readable storage medium having a program stored thereon, characterized in that: When the program is executed by the processor, it implements the control method of the air conditioner as described in any one of claims 1 to 4.

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