Air conditioner and control method, device and storage medium thereof

Abstract

The present application discloses an air conditioner and its control method, device and storage medium. The control method includes: obtaining a gear switching instruction; determining the target frequency of the compressor and the target speed of the fan based on the gear switching instruction; determining the frequency conversion time of the compressor based on the current frequency of the compressor, the target frequency and the preset frequency conversion rate; determining the speed change rate of the fan based on the frequency conversion time, the current speed of the fan and the target speed; wherein the air conditioner has at least two gears, each gear having a corresponding target frequency and target speed. The frequency conversion rate of the compressor and the speed change rate of the fan can be matched, so that the frequency conversion process of the compressor and the speed change process of the fan can be synchronized, effectively reducing the duration of the noise of the compressor frequency conversion and the fan speed change, which is conducive to improving the user experience.

Description

Technical Field

[0001] The present application relates to the field of air conditioning, and in particular to an air conditioner and a control method, device and storage medium thereof. Background Art

[0002] Air conditioners are widely used as electrical equipment for adjusting ambient temperature. In the related art, for variable frequency air conditioners, when a user adjusts the operating gear of the air conditioner, the compressor of the air conditioner needs to be switched to a target frequency and the fan needs to be switched to a target speed.

[0003] Since the frequency increase and decrease speed of the compressor will directly cause the change of the pressure of the air-conditioning system, the fixed frequency increase and decrease speed of the compressor and fan are usually set in the parameter table. In addition, considering the system pressure, for each gear switch of the refrigeration system, if it is a frequency reduction, the compressor will reduce the frequency first, and the fan will reduce the frequency later. If it is a frequency increase, the fan will increase the frequency first, and the compressor will increase the frequency later, and the frequency increase and decrease speeds of the compressor and fan are fixed. For the heating system, it is just the opposite of the refrigeration system. When reducing the frequency, the fan will reduce the frequency first, and the compressor will reduce the frequency later. When increasing the frequency, the compressor will increase the frequency first, and the fan will increase the frequency later. Although such operation helps to reduce the pressure of the cooling and heating system, due to the long-term frequency increase and decrease process of the compressor and fan, the noise of the whole machine changes for a long time, which is not conducive to the user experience. Summary of the invention

[0004] In view of this, the embodiments of the present application provide an air conditioner and a control method, device and storage medium thereof, which aim to effectively reduce the duration of noise during frequency increase and decrease and improve user experience.

[0005] The technical solution of the embodiment of the present application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a method for controlling an air conditioner, comprising:

[0007] Get the gear switching instruction;

[0008] Determine a target frequency for the compressor and a target speed for the fan based on the gear switching instruction;

[0009] Determining the frequency conversion time of the compressor based on the current frequency of the compressor, the target frequency and a preset frequency conversion rate;

[0010] Determining a speed change rate of the fan based on the frequency change duration, the current speed of the fan and the target speed;

[0011] Wherein, the air conditioner has at least two gears, and each gear has the corresponding target frequency and target rotation speed.

[0012] In some embodiments, determining the variable frequency duration of the compressor based on the current frequency of the compressor, the target frequency, and a preset variable frequency rate includes:

[0013] If it is determined that the current frequency is greater than the target frequency, a preset down-conversion rate is selected, and the frequency conversion duration is obtained based on the difference between the current frequency and the target frequency divided by the down-conversion rate; or,

[0014] If it is determined that the current frequency is less than the target frequency, a preset up-conversion rate is selected, and the frequency conversion duration is obtained based on the difference between the target frequency and the current frequency divided by the up-conversion rate.

[0015] In some embodiments, determining the speed change rate of the fan based on the frequency conversion duration, the current speed of the fan and the target speed includes:

[0016] The speed change rate is obtained based on the absolute value of the difference between the current speed and the target speed divided by the frequency change duration.

[0017] In some embodiments, the method further comprises:

[0018] The compressor is controlled to switch to the target frequency based on the variable frequency rate, and the fan is controlled to switch to the target speed based on the variable speed rate.

[0019] In a second aspect, an embodiment of the present application provides a method for controlling an air conditioner, comprising:

[0020] Get the gear switching instruction;

[0021] Determine a target frequency for the compressor and a target speed for the fan based on the gear switching instruction;

[0022] Determining the speed change duration of the fan based on the current speed of the fan, the target speed and a preset speed change rate;

[0023] Determining a frequency conversion rate of the compressor based on the speed conversion duration, the current frequency at which the compressor is running, and the target frequency;

[0024] Wherein, the air conditioner has at least two gears, and each gear has the corresponding target frequency and target rotation speed.

[0025] In some embodiments, determining the speed change duration of the fan based on the current speed of the fan, the target speed, and a preset speed change rate includes:

[0026] If it is determined that the current speed is greater than the target speed, a preset downshifting speed is selected, and the speed change duration is obtained based on the difference between the current speed and the target speed divided by the downshifting speed; or

[0027] If it is determined that the current speed is less than the target speed, a preset upshift speed is selected, and the speed change duration is obtained based on the difference between the target speed and the current speed divided by the upshift speed.

[0028] In some embodiments, determining the variable frequency rate of the compressor based on the variable speed duration, the current frequency of the compressor operation, and the target frequency includes:

[0029] The frequency conversion rate is obtained based on the absolute value of the difference between the current frequency and the target frequency divided by the speed conversion duration.

[0030] In some embodiments, the method further comprises:

[0031] The compressor is controlled to switch to the target frequency based on the variable frequency rate, and the fan is controlled to switch to the target speed based on the variable speed rate.

[0032] In a third aspect, an embodiment of the present application provides a control device for an air conditioner, comprising:

[0033] A first acquisition module, used to acquire a gear switching instruction;

[0034] a first determination module, configured to determine a target frequency of the compressor and a target speed of the fan based on the gear switching instruction, determine a frequency conversion time of the compressor based on a current frequency of the compressor, the target frequency and a preset frequency conversion rate, and determine a speed conversion rate of the fan based on the frequency conversion time, the current speed of the fan and the target speed;

[0035] Wherein, the air conditioner has at least two gears, and each gear has the corresponding target frequency and target rotation speed.

[0036] In a fourth aspect, an embodiment of the present application provides a control device for an air conditioner, comprising:

[0037] A second acquisition module, used to acquire a gear switching instruction;

[0038] a second determination module, configured to determine a target frequency of the compressor and a target speed of the fan based on the gear shift instruction, determine a speed change duration of the fan based on a current speed of the fan, the target speed and a preset speed change rate, and determine a frequency change rate of the compressor based on the speed change duration, the current frequency of the compressor and the target frequency;

[0039] Wherein, the air conditioner has at least two gears, and each gear has the corresponding target frequency and target rotation speed.

[0040] In a fifth aspect, an embodiment of the present application further provides an air conditioner, comprising: a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is used to execute the steps of the method described in the embodiment of the present application when running the computer program.

[0041] In a sixth aspect, an embodiment of the present application further provides a storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method described in the embodiment of the present application are implemented.

[0042] The technical solution provided by the embodiment of the present application obtains the gear switching instruction; determines the target frequency of the compressor operation and the target speed of the fan operation based on the gear switching instruction; determines the frequency conversion time of the compressor based on the current frequency of the compressor operation, the target frequency and the preset frequency conversion rate, and determines the speed change rate of the fan based on the frequency conversion time, the current speed of the fan operation and the target speed; or, determines the speed change time of the fan based on the current speed of the fan operation, the target speed and the preset speed change rate, and determines the frequency change rate of the compressor based on the speed change time, the current frequency of the compressor operation and the target frequency. The frequency conversion rate of the compressor and the speed change rate of the fan can be matched, so that the frequency conversion process of the compressor and the speed change process of the fan can be synchronized, effectively reducing the duration of the noise of the compressor frequency conversion and the fan speed change, which is conducive to improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A flow chart of a method for controlling an air conditioner according to an embodiment of the present application;

[0044] Figure 2 Another flowchart of a control method of a regulator according to an application example of the present application is shown;

[0045] Figure 3 Another schematic diagram of a flow chart of a method for controlling an air conditioner according to an embodiment of the present application;

[0046] Figure 4 This is a schematic diagram of the structure of the control device of the air conditioner according to the embodiment of the present application;

[0047] Figure 5 Another structural schematic diagram of the control device of the air conditioner according to the embodiment of the present application;

[0048] Figure 6 This is a schematic diagram of the structure of the air conditioner according to the embodiment of the present application. DETAILED DESCRIPTION

[0049] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0051] The embodiment of the present application provides a control method for an air conditioner, which is used to adjust the temperature, humidity, etc. of the environment. The air conditioner can be a cooling-only air conditioner or a cooling-heating dual-purpose air conditioner, and the air conditioner can be a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, or a ceiling air conditioner, etc., which is not specifically limited in the embodiment of the present application.

[0052] It is understandable that the air conditioner includes an outdoor air conditioner and an indoor air conditioner, and the outdoor air conditioner and the indoor air conditioner can be a split structure, for example, the indoor air conditioner is arranged indoors, and the outdoor air conditioner is arranged outdoors. The outdoor air conditioner and the indoor air conditioner can also be a combined structure, that is, the indoor air conditioner and the outdoor air conditioner are arranged together to form a combined air conditioner such as a mobile air conditioner, a portable air conditioner, a window unit, etc. It should be noted that the combined air conditioner has the advantages of convenient installation and movement, but due to the close distance between the condenser and the evaporator, it can only perform local cooling or heating. In addition, due to the small size of the structure, it is sensitive to system load fluctuations and is close to the user, so noise, vibration, changes in cooling or heating amount, etc. often directly affect the user's experience.

[0053] It should be noted that the air conditioner in the embodiment of the present application is a variable frequency air conditioner.

[0054] In the related art, air conditioners often set fixed compressor and fan frequency increase and decrease speeds in the parameter table. In addition, considering the pressure of the air conditioning system, for the refrigeration system, each time the gear is switched, if it is a frequency reduction, the compressor will reduce the frequency first, and the fan will reduce the frequency later. If it is a frequency increase, the fan will increase the frequency first, and the compressor will increase the frequency later, and the frequency increase and decrease speeds of the compressor and fan are fixed. Although such operation helps to reduce the pressure of the refrigeration system, due to the long frequency increase and decrease process of the compressor and fan, the noise of the whole machine changes for a long time, which is not conducive to the user experience.

[0055] Based on this, the embodiment of the present application provides a method for controlling an air conditioner, such as Figure 1 As shown, the method includes:

[0056] Step 101, obtaining a gear switching instruction.

[0057] In the embodiment of the present application, the air conditioner has at least two gears, and each gear has a corresponding target frequency and target speed.

[0058] Exemplarily, the air conditioner has four gears, namely: strong gear, high gear, medium gear and low gear. The target frequency and target speed corresponding to each gear are shown in Table 1.

[0059] Table 1

[0060] Gear Target frequency Target speed Powerful Compressor frequency FR1 Fan speed PR1 high Compressor frequency FR2 Fan speed PR2 middle Compressor frequency FR3 Fan speed PR3 Low Compressor frequency FR4 Fan speed PR4

[0061] It can be understood that FR1>FR2>FR3>FR4, PR1>PR2>PR3>PR4, that is, the compressor frequency of the strong gear is greater than the compressor frequency of the high-end gear, the fan speed of the strong gear is greater than the fan speed of the high-end gear, and so on.

[0062] It should be noted that the fan speed may be the speed of the indoor fan, the speed of the outdoor fan, or both the speed of the indoor fan and the speed of the outdoor fan, and the embodiments of the present application do not limit this.

[0063] It is understandable that in other embodiments, the gears of the air conditioner can be three, five or other, and the embodiments of the present application are not limited to this.

[0064] It should be noted that the gear position of the air conditioner can be a physical gear position set on the remote control or the touch panel of the air conditioner, or it can be a logical gear position set by the air conditioner based on the running program, that is, the gear switching instruction can be an instruction generated based on the switching of the physical gear, or it can be an instruction corresponding to the logical gear switching determined based on the running program. The embodiments of the present application do not limit this.

[0065] Exemplarily, the air conditioner may receive instructions input by a user to obtain corresponding gear switching instructions, or the air conditioner may generate gear switching instructions based on changes in operating parameters such as ambient temperature, which is not limited in the embodiments of the present application.

[0066] Step 102: determining a target frequency for the compressor and a target speed for the fan based on the gear switching instruction.

[0067] It is understandable that the air conditioner pre-stores a mapping relationship between gears and the target frequencies and target speeds corresponding to each gear. The air conditioner can determine the target frequency of the compressor and the target speed of the fan based on the acquired gear switching instructions and the mapping relationship.

[0068] Step 103, determining the frequency conversion time of the compressor based on the current frequency of the compressor, the target frequency and the preset frequency conversion rate.

[0069] Here, the air conditioner may obtain the current frequency of the compressor and the preset frequency conversion rate, and determine the frequency conversion time of the compressor based on the current frequency, the target frequency and the preset frequency conversion rate.

[0070] Step 104 , determining the speed change rate of the fan based on the frequency change duration, the current speed of the fan and the target speed.

[0071] Here, the air conditioner can obtain the current speed of the fan, and determine the speed change rate of the fan based on the frequency change duration, current speed and target speed determined in step 103. That is, under the premise of presetting the frequency change rate, the speed change rate of the fan is dynamically adjusted based on the frequency change duration of the compressor, so that the speed change rate of the fan matches the frequency change rate of the compressor, thereby synchronizing the frequency change process of the compressor and the speed change process of the fan, effectively reducing the duration of the noise of the compressor frequency change and the fan speed change, and helping to improve the user experience.

[0072] Exemplarily, determining the variable frequency duration of the compressor based on the current frequency, target frequency and preset variable frequency rate of the compressor includes:

[0073] If it is determined that the current frequency is greater than the target frequency, a preset down-conversion rate is selected, and the frequency conversion duration is obtained based on the difference between the current frequency and the target frequency divided by the down-conversion rate; or,

[0074] If it is determined that the current frequency is less than the target frequency, a preset up-conversion rate is selected, and the frequency conversion duration is obtained based on the difference between the target frequency and the current frequency divided by the up-conversion rate.

[0075] It is understandable that the preset down-conversion rate and the preset up-conversion rate may be the same or different.

[0076] Exemplarily, the preset up-conversion frequency rate is less than or equal to 0.5 Hz / s (Hertz per second), which can prevent the up-conversion frequency rate of the compressor from being too high, resulting in excessive noise from the compressor.

[0077] Exemplarily, the preset down-conversion rate may be 1 Hz / s.

[0078] Exemplarily, determining the speed change rate of the fan based on the frequency conversion duration, the current speed of the fan and the target speed includes:

[0079] The speed change rate is obtained by dividing the absolute value of the difference between the current speed and the target speed by the frequency conversion duration.

[0080] It is understandable that the control method also includes:

[0081] The compressor is switched to a target frequency based on the variable frequency rate control, and the fan is switched to a target speed based on the variable speed rate control.

[0082] Exemplarily, the compressor can be synchronously controlled to switch to the target frequency based on the frequency conversion rate and the fan can be synchronously controlled to switch to the target speed based on the speed conversion rate, so that the frequency conversion process of the compressor is synchronized with the speed conversion process of the fan, reducing the duration of noise during the gear switching process, which is beneficial to improving the user experience.

[0083] In an application example, Figure 2 As shown, the control method of the air conditioner includes:

[0084] Step 201, determining the target frequency of the compressor and the target speed of the fan according to the gear position input by the user.

[0085] Exemplarily, when the gear is set to high, the target frequency of the compressor is FR2, and the target speed of the fan is PR2.

[0086] Step 202, obtaining the actual operating frequency Fr of the compressor and the actual operating speed Pr of the fan.

[0087] Step 203 , determining whether the current actual operating frequency Fr of the compressor is greater than the target frequency FR2 of the compressor, if not, executing step 204 ; if yes, executing step 206 .

[0088] Step 204: determine whether the compressor needs to be frequency-upgraded, and determine the frequency conversion duration based on a preset frequency conversion rate.

[0089] Here, according to the current operating frequency Fr of the compressor, the target frequency FR2, and the compressor frequency increase rate Kacc set in the parameter table, the frequency conversion time required for the compressor frequency increase is obtained as T, and the calculation formula of T is shown in the following formula (1):

[0090]

[0091] Step 205, determining the speed change rate of the fan based on the frequency conversion duration, the current operating speed of the fan and the target speed.

[0092] Here, according to the variable frequency duration T of the compressor calculated in step 204, the currently running fan speed Pr, and the target speed PR6 of the fan, the variable speed of the fan is calculated as shown in the following formula (2):

[0093]

[0094] Step 206: Determine whether the compressor needs to be frequency-reduced, and determine the frequency conversion duration based on a preset frequency-reduction conversion rate.

[0095] It is determined that the compressor needs to reduce the frequency. At this time, according to the current operating frequency Fr of the compressor, the target frequency FR2, and the compressor frequency reduction rate Kdec set in the parameter table, the frequency conversion time T required for the compressor frequency reduction is obtained. The calculation formula of T is shown in the following formula (3):

[0096]

[0097] Step 207, determining the speed change rate of the fan based on the frequency conversion duration, the current operating speed of the fan and the target speed.

[0098] According to the variable frequency duration T of the compressor calculated in step 206, the current fan speed Pr, and the target fan speed PR6, the variable speed of the fan is calculated as shown in the following formula (4):

[0099]

[0100] Step 208, controlling the frequency conversion of the compressor and the speed conversion of the fan synchronously according to the speed conversion rate of the fan.

[0101] Here, according to the speed change rate of the fan calculated in step 205 or step 207, the fan is controlled to change speed to the target speed, and the compressor is synchronously controlled to change frequency to the target frequency based on the preset frequency change rate, thereby achieving synchronization of the frequency change of the compressor and the speed change of the fan.

[0102] It is understandable that if the user changes the gear or frequency limiting occurs during operation, causing the compressor target frequency to change, the above steps 201 to 208 are repeated to switch the operating frequency of the compressor and the operating speed of the fan.

[0103] It can be understood that the control method of this application example, under the premise of pre-setting the frequency conversion rate, dynamically adjusts the speed change rate of the fan based on the frequency conversion duration of the compressor, so that the speed change rate of the fan matches the frequency conversion rate of the compressor, thereby synchronizing the frequency conversion process of the compressor and the speed change process of the fan, effectively reducing the duration of the noise of the compressor frequency conversion and the fan speed change, and helping to improve the user experience.

[0104] The present application also provides a method for controlling an air conditioner. Figure 3 As shown, the method includes:

[0105] Step 301, obtaining a gear switching instruction.

[0106] Here, the air conditioner has at least two gears, and each gear has a corresponding target frequency and target speed. For details, please refer to the above description.

[0107] Exemplarily, the air conditioner may receive instructions input by a user to obtain corresponding gear switching instructions, or the air conditioner may generate gear switching instructions based on changes in operating parameters such as ambient temperature, which is not limited in the embodiments of the present application.

[0108] Step 302: determining a target frequency for the compressor and a target speed for the fan based on the gear switching instruction.

[0109] It is understandable that the air conditioner pre-stores a mapping relationship between gears and the target frequencies and target speeds corresponding to each gear. The air conditioner can determine the target frequency of the compressor and the target speed of the fan based on the acquired gear switching instructions and the mapping relationship.

[0110] Step 303, determining the speed change duration of the fan based on the current speed of the fan, the target speed and the preset speed change rate.

[0111] Here, the air conditioner can obtain the current speed of the fan and the preset speed change rate, and determine the speed change time of the fan based on the current speed, the target speed and the preset speed change rate.

[0112] Step 304 , determining the variable frequency rate of the compressor based on the variable frequency duration, the current frequency of the compressor operation, and the target frequency.

[0113] Here, the air conditioner can obtain the current frequency of the compressor operation, and determine the frequency conversion rate of the compressor based on the speed conversion duration, current frequency and target frequency determined in step 303. That is, under the premise of the speed conversion rate being preset, the frequency conversion rate of the compressor is dynamically adjusted based on the speed conversion duration of the fan, so that the frequency conversion rate of the compressor matches the speed conversion rate of the fan, thereby synchronizing the frequency conversion process of the compressor and the speed conversion process of the fan, effectively reducing the duration of the noise of the compressor frequency conversion and the fan speed conversion, and helping to improve the user experience.

[0114] Exemplarily, determining the speed change duration of the fan based on the current speed, target speed, and preset speed change rate of the fan includes:

[0115] If it is determined that the current speed is greater than the target speed, a preset downshifting speed is selected, and the speed change duration is obtained based on the difference between the current speed and the target speed divided by the downshifting speed; or,

[0116] If it is determined that the current speed is less than the target speed, a preset upshift speed is selected, and the speed change duration is obtained based on the difference between the target speed and the current speed divided by the upshift speed.

[0117] It is understandable that the preset downshifting speed rate and the preset upshifting speed rate may be the same or different.

[0118] Exemplarily, determining the variable frequency rate of the compressor based on the variable speed duration, the current frequency of the compressor operation, and the target frequency includes:

[0119] The frequency conversion rate is obtained by dividing the absolute value of the difference between the current frequency and the target frequency by the speed conversion duration.

[0120] It is understandable that the control method also includes:

[0121] The compressor is switched to a target frequency based on the variable frequency rate control, and the fan is switched to a target speed based on the variable speed rate control.

[0122] Exemplarily, the compressor can be synchronously controlled to switch to the target frequency based on the frequency conversion rate and the fan can be synchronously controlled to switch to the target speed based on the speed conversion rate, so that the frequency conversion process of the compressor is synchronized with the speed conversion process of the fan, reducing the duration of noise during the gear switching process, which is beneficial to improving the user experience.

[0123] In order to implement the method of the embodiment of the present application, the embodiment of the present application also provides a control device of an air conditioner, which corresponds to the control method of the above-mentioned air conditioner, and each step in the embodiment of the control method of the above-mentioned air conditioner is also fully applicable to the embodiment of the control device of the present air conditioner.

[0124] like Figure 4 As shown, the control device of the air conditioner includes: a first acquisition module 401 and a first determination module 402 .

[0125] The first acquisition module 401 is used to acquire the gear switching instruction; the first determination module 402 is used to determine the target frequency of the compressor operation and the target speed of the fan operation based on the gear switching instruction, determine the frequency conversion time of the compressor based on the current frequency of the compressor operation, the target frequency and the preset frequency conversion rate, and determine the speed conversion rate of the fan based on the frequency conversion time, the current speed of the fan operation and the target speed; wherein the air conditioner has at least two gears, and each gear has a corresponding target frequency and target speed.

[0126] In some embodiments, the first determination module 402 determines the variable frequency duration of the compressor based on the current frequency, the target frequency, and the preset variable frequency rate of the compressor, including:

[0127] If it is determined that the current frequency is greater than the target frequency, a preset down-conversion rate is selected, and the frequency conversion duration is obtained based on the difference between the current frequency and the target frequency divided by the down-conversion rate; or,

[0128] If it is determined that the current frequency is less than the target frequency, a preset up-conversion rate is selected, and the frequency conversion duration is obtained based on the difference between the target frequency and the current frequency divided by the up-conversion rate.

[0129] In some embodiments, the first determination module 402 determines the speed change rate of the fan based on the frequency conversion duration, the current speed of the fan and the target speed, including:

[0130] The speed change rate is obtained by dividing the absolute value of the difference between the current speed and the target speed by the frequency conversion duration.

[0131] In some embodiments, the control device of the air conditioner further includes: a first control module 403, which is used to control the compressor to switch to a target frequency based on the variable frequency rate, and to control the fan to switch to a target speed based on the variable speed rate.

[0132] In actual application, the first acquisition module 401, the first determination module 402 and the first control module 403 can be implemented by a processor of the air conditioner. Of course, the processor needs to run the computer program in the memory to implement its functions.

[0133] like Figure 5 As shown, the control device of the air conditioner includes: a second acquisition module 501 and a second determination module 502 .

[0134] The second acquisition module 501 is used to obtain the gear switching instruction; the second determination module 502 is used to determine the target frequency of the compressor operation and the target speed of the fan operation based on the gear switching instruction, determine the speed change duration of the fan based on the current speed of the fan, the target speed and the preset speed change rate, and determine the frequency change rate of the compressor based on the speed change duration, the current frequency of the compressor operation and the target frequency; wherein the air conditioner has at least two gears, and each gear has a corresponding target frequency and target speed.

[0135] In some embodiments, the second determination module 502 determines the speed change duration of the fan based on the current speed, target speed, and preset speed change rate of the fan, including:

[0136] If it is determined that the current speed is greater than the target speed, a preset downshifting speed is selected, and the speed change duration is obtained based on the difference between the current speed and the target speed divided by the downshifting speed; or,

[0137] If it is determined that the current speed is less than the target speed, a preset upshift speed is selected, and the speed change duration is obtained based on the difference between the target speed and the current speed divided by the upshift speed.

[0138] In some embodiments, the second determination module 502 determines the variable frequency rate of the compressor based on the variable speed duration, the current frequency of the compressor, and the target frequency, including:

[0139] The frequency conversion rate is obtained by dividing the absolute value of the difference between the current frequency and the target frequency by the speed conversion duration.

[0140] In some embodiments, the control device of the air conditioner further includes: a second control module 503, which is used to control the compressor to switch to a target frequency based on the variable frequency rate, and to control the fan to switch to a target speed based on the variable speed rate.

[0141] In actual application, the second acquisition module 501, the second determination module 502 and the second control module 503 can be implemented by a processor of the air conditioner. Of course, the processor needs to run the computer program in the memory to implement its functions.

[0142] It should be noted that: the control device for the air conditioner provided in the above embodiment only uses the division of the above program modules as an example when controlling the air conditioner. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the control device for the air conditioner provided in the above embodiment and the control method embodiment of the air conditioner belong to the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0143] Based on the hardware implementation of the above program modules and in order to implement the method of the embodiment of the present application, the embodiment of the present application also provides an air conditioner. Figure 6 Only an exemplary structure of the air conditioner is shown, not all structures, and it can be implemented as needed. Figure 6 Partial or complete structure shown.

[0144] like Figure 6 As shown, the air conditioner 600 provided in the embodiment of the present application includes: at least one processor 601, a memory 602 and a user interface 603. The various components in the air conditioner 600 are coupled together through a bus system 604. It can be understood that the bus system 604 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 604 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, in Figure 6 Various buses are labeled as bus system 604 .

[0145] The user interface 603 may include a display, a keyboard, a mouse, a trackball, a click wheel, keys, buttons, a touch pad or a touch screen.

[0146] The memory 602 in the embodiment of the present application is used to store various types of data to support the operation of the air conditioner. Examples of such data include: any computer program used to operate on the air conditioner.

[0147] The control method of the air conditioner disclosed in the embodiment of the present application can be applied to the processor 601, or implemented by the processor 601. The processor 601 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the control method of the air conditioner can be completed by the hardware integrated logic circuit in the processor 601 or the instruction in the form of software. The above-mentioned processor 601 can be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 601 can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiment of the present application. The general-purpose processor can be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present application, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in the memory 602. The processor 601 reads the information in the memory 602 and completes the steps of the control method of the air conditioner provided in the embodiment of the present application in combination with its hardware.

[0148] In an exemplary embodiment, the air conditioner can be implemented by one or more application specific integrated circuits (ASIC), DSP, programmable logic device (PLD), complex programmable logic device (CPLD), field programmable gate array (FPGA), general processor, controller, microcontroller (MCU), microprocessor, or other electronic components to execute the aforementioned method.

[0149] It can be understood that the memory 602 can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), and direct RAM bus random access memory (DRRAM, Direct Rambus Random Access Memory).The memories described in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0150] In an exemplary embodiment, the present application also provides a storage medium, namely a computer storage medium, which can be a computer-readable storage medium, for example, a memory 602 storing a computer program, and the computer program can be executed by a processor 601 of the air conditioner to complete the steps of the method of the present application. The computer-readable storage medium can be a memory such as a ROM, a PROM, an EPROM, an EEPROM, a Flash Memory, a magnetic surface memory, an optical disk, or a CD-ROM.

[0151] It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0152] In addition, the technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0153] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for controlling an air conditioner, characterized in that: include: Get the gear switching instruction; Determine a target frequency for the compressor and a target speed for the fan based on the gear switching instruction; Determining the frequency conversion time of the compressor based on the current frequency of the compressor, the target frequency and a preset frequency conversion rate; Determining a speed change rate of the fan based on the frequency change duration, the current speed of the fan and the target speed; Wherein, the air conditioner has at least two gears, and each gear has the corresponding target frequency and target rotation speed.

2. The method according to claim 1, characterized in that The determining of the frequency conversion duration of the compressor based on the current frequency of the compressor, the target frequency and a preset frequency conversion rate includes: If it is determined that the current frequency is greater than the target frequency, a preset down-conversion rate is selected, and the frequency conversion duration is obtained based on the difference between the current frequency and the target frequency divided by the down-conversion rate; or, If it is determined that the current frequency is less than the target frequency, a preset up-conversion rate is selected, and the frequency conversion duration is obtained based on the difference between the target frequency and the current frequency divided by the up-conversion rate.

3. The method according to claim 1, characterized in that The determining of the speed change rate of the fan based on the frequency conversion duration, the current speed of the fan and the target speed includes: The speed change rate is obtained based on the absolute value of the difference between the current speed and the target speed divided by the frequency change duration.

4. The method according to claim 1, characterized in that: The method further comprises: The compressor is controlled to switch to the target frequency based on the variable frequency rate, and the fan is controlled to switch to the target speed based on the variable speed rate.

5. A method for controlling an air conditioner, characterized in that: include: Get the gear switching instruction; Determine a target frequency for the compressor and a target speed for the fan based on the gear switching instruction; Determining the speed change duration of the fan based on the current speed of the fan, the target speed and a preset speed change rate; Determining a frequency conversion rate of the compressor based on the speed conversion duration, the current frequency at which the compressor is running, and the target frequency; Wherein, the air conditioner has at least two gears, and each gear has the corresponding target frequency and target rotation speed.

6. The method according to claim 5, characterized in that The determining of the speed change duration of the fan based on the current speed of the fan, the target speed and the preset speed change rate comprises: If it is determined that the current speed is greater than the target speed, a preset downshifting speed is selected, and the speed change duration is obtained based on the difference between the current speed and the target speed divided by the downshifting speed; or If it is determined that the current speed is less than the target speed, a preset upshift speed is selected, and the speed change duration is obtained based on the difference between the target speed and the current speed divided by the upshift speed.

7. The method according to claim 5, characterized in that The step of determining the variable frequency rate of the compressor based on the variable speed duration, the current frequency of the compressor and the target frequency includes: The frequency conversion rate is obtained based on the absolute value of the difference between the current frequency and the target frequency divided by the speed conversion duration.

8. The method according to claim 5, characterized in that The method further comprises: The compressor is controlled to switch to the target frequency based on the variable frequency rate, and the fan is controlled to switch to the target speed based on the variable speed rate.

9. A control device for an air conditioner, characterized in that: include: A first acquisition module, used to acquire a gear switching instruction; a first determination module, configured to determine a target frequency of the compressor and a target speed of the fan based on the gear switching instruction, determine a frequency conversion time of the compressor based on a current frequency of the compressor, the target frequency and a preset frequency conversion rate, and determine a speed conversion rate of the fan based on the frequency conversion time, the current speed of the fan and the target speed; Wherein, the air conditioner has at least two gears, and each gear has the corresponding target frequency and target rotation speed.

10. A control device for an air conditioner, characterized in that: include: A second acquisition module, used to acquire a gear switching instruction; a second determination module, configured to determine a target frequency of the compressor and a target speed of the fan based on the gear shift instruction, determine a speed change duration of the fan based on a current speed of the fan, the target speed and a preset speed change rate, and determine a frequency change rate of the compressor based on the speed change duration, the current frequency of the compressor and the target frequency; Wherein, the air conditioner has at least two gears, and each gear has the corresponding target frequency and target rotation speed.

11. An air conditioner, characterized in that: include: A processor and a memory for storing a computer program that can be executed on the processor, wherein: The processor is used to execute the steps of the method according to any one of claims 1 to 8 when running a computer program.

12. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 8 are implemented.

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