Control method and device of air conditioner, air conditioner and storage medium

Abstract

The application discloses a control method and device of an air conditioner, the air conditioner and a storage medium, and belongs to the technical field of air conditioners. The control method of the air conditioner comprises the following steps: after the air conditioner receives a heating mode operation instruction, the maximum rated frequency of a compressor of the air conditioner is acquired, and the compressor is controlled to start operation; the actual operation frequency of the compressor is controlled to be raised to the maximum rated frequency; when the actual operation frequency reaches the maximum rated frequency, the first real-time current of the compressor is acquired; and according to the threshold range in which the first real-time current is located, the operation frequency of the compressor is controlled. The application can improve the temperature rise rate of a room in the initial stage of the heating mode, and thus improves the user experience.

Description

TECHNICAL FIELD

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

[0002] In related technologies, the running frequency of an air conditioner is determined according to the most extreme conditions of the temperature interval in which the indoor and outdoor environment temperatures are located.

[0003] However, when the air conditioner is started in a heating mode, the room temperature rise speed during the start-up stage of the air conditioner is affected in order to meet the anti-cold wind requirement.

[0004] The above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0005] The main purpose of the present application is to provide an air conditioner control method and device, an air conditioner and a storage medium, which aims to solve the technical problem that the room heating speed during the start-up stage of the air conditioner is affected.

[0006] To achieve the above purpose, the present application provides an air conditioner control method, which comprises:

[0007] After the air conditioner receives a heating mode operation instruction, the maximum rated frequency of the compressor of the air conditioner is obtained, and the compressor is controlled to start running;

[0008] The actual running frequency of the compressor is controlled to be raised to the maximum rated frequency;

[0009] When the actual running frequency reaches the maximum rated frequency, the first real-time current of the compressor is obtained;

[0010] According to the threshold range in which the first real-time current is located, the running frequency of the compressor is controlled.

[0011] In an embodiment, the control of the running frequency of the compressor according to the threshold range in which the first real-time current is located comprises:

[0012] If the first real-time current is less than or equal to a first preset threshold, the running frequency of the compressor is controlled to be increased by a set frequency; wherein the first preset threshold is less than the maximum allowable current of the compressor.

[0013] In an embodiment, after the running frequency of the compressor is controlled to be increased by a set frequency if the real-time current is less than or equal to the first preset threshold, the method further comprises:

[0014] If the actual operating frequency is less than or equal to a first preset frequency, returning to the step of acquiring the first real-time current of the compressor.

[0015] If the actual operating frequency is greater than the first preset frequency, maintaining the current operating frequency of the compressor.

[0016] In an embodiment, the controlling the operating frequency of the compressor according to the threshold range in which the first real-time current is located comprises:

[0017] If the first real-time current is greater than a first preset threshold and less than or equal to a maximum allowable current of the compressor, maintaining the current operating frequency of the compressor.

[0018] If the first real-time current is greater than the maximum allowable current, controlling the operating frequency of the compressor to decrease by a set frequency.

[0019] After the controlling the operating frequency of the compressor to decrease by the set frequency, returning to the step of acquiring the first real-time current of the compressor.

[0020] In an embodiment, the method further comprises:

[0021] Acquiring a first indoor real-time temperature and a set temperature.

[0022] Adjusting the actual operating frequency of the compressor according to the first indoor real-time temperature and the set temperature.

[0023] In an embodiment, the adjusting the actual operating frequency of the compressor according to the first indoor real-time temperature and the set temperature comprises:

[0024] If the first indoor real-time temperature is less than the set temperature and a difference between the set temperature and the first indoor real-time temperature is less than or equal to a second preset threshold, controlling the compressor to operate at the maximum rated frequency.

[0025] If the first indoor real-time temperature is less than the set temperature and an absolute value of the difference between the first indoor real-time temperature and the set temperature is less than or equal to a third preset threshold, controlling the compressor to operate at a current frequency.

[0026] If the first indoor real-time temperature is greater than or equal to the set temperature and an absolute value of the difference between the first indoor real-time temperature and the set temperature is less than or equal to the third preset threshold, controlling the compressor to operate at the current frequency.

[0027] if the first indoor real-time temperature is greater than the set temperature, and a difference between the set temperature and the first indoor real-time temperature is less than or equal to a fourth preset threshold value, taking a current actual operating frequency of the compressor as a third initial frequency, and controlling the compressor to operate at a third preset rate;

[0028] wherein the second preset threshold value, the third preset threshold value and the fourth preset threshold value are sequentially decreased.

[0029] In an embodiment, after the air conditioner receives the heating mode operation instruction, the maximum rated frequency of the compressor of the air conditioner is acquired, and the compressor is controlled to start operation, comprising:

[0030] After the air conditioner receives the heating mode operation instruction, the second indoor real-time temperature and / or the outdoor real-time temperature is acquired, and the compressor is controlled to start operation.

[0031] According to the second indoor real-time temperature and / or the outdoor real-time temperature, the current temperature interval corresponding to the air conditioner is determined.

[0032] According to the current temperature interval, the maximum rated frequency of the compressor is determined.

[0033] In a second aspect, the present application further provides a control device of an air conditioner, comprising:

[0034] A start-up control module is configured to acquire the maximum rated frequency of the compressor of the air conditioner after the air conditioner receives the heating mode operation instruction, and control the compressor to start operation.

[0035] A frequency raising module is configured to control the actual operating frequency of the compressor to raise to the maximum rated frequency.

[0036] A current acquisition module is configured to acquire the first real-time current of the compressor when the actual operating frequency reaches the maximum rated frequency.

[0037] A frequency control module is configured to control the operating frequency of the compressor according to the threshold value range in which the first real-time current is located.

[0038] In a third aspect, the present application further provides an air conditioner, comprising a memory, a processor and a control program of the air conditioner stored in the memory and executable on the processor, wherein the control program of the air conditioner is configured to implement the control method of the air conditioner as described above.

[0039] In a fourth aspect, the present application further provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program is configured to implement the control method of the air conditioner as described above when executed by a processor.

[0040] The control method of the air conditioner provided by the embodiment of the present application controls the compressor to run at the maximum rated frequency, and then further controls the running frequency of the compressor according to the threshold range in which the first real-time current of the compressor is located, so as to improve the temperature rising rate of the room in the initial stage, and further improve the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 The recommended structure of the air conditioner of the present application is shown in the figure;

[0042] Figure 2 The flowchart of the first embodiment of the control method of the air conditioner of the present application is shown in the figure;

[0043] Figure 3 The flowchart of the second embodiment of the control method of the air conditioner of the present application is shown in the figure;

[0044] Figure 4 The flowchart of the third embodiment of the control method of the air conditioner of the present application is shown in the figure;

[0045] Figure 5 The flowchart of the fourth embodiment of the control method of the air conditioner of the present application is shown in the figure;

[0046] Figure 6 The functional module diagram of the control device of the air conditioner of the present application is shown in the figure.

[0047] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0048] It should be understood that the specific embodiments described herein are merely intended to explain the present application, and are not intended to limit the present application.

[0049] In the related art, the maximum rated frequency of the compressor of the air conditioner is usually determined according to the most extreme conditions of the temperature interval in which the indoor and outdoor environment temperatures are located. Therefore, the running frequency of the compressor is limited in the case that the conditions are not very bad, so that the refrigeration and heating effects of the air conditioning system cannot be fully exerted, especially the temperature rising speed is slow when the heating mode is started in the low temperature environment.

[0050] Therefore, the control method of the air conditioner provided by the embodiment of the present application controls the compressor to run at the maximum rated frequency, and then further controls the running frequency of the compressor according to the threshold range in which the first real-time current of the compressor is located, so as to improve the temperature rising rate of the room in the initial stage, and further improve the user experience.

[0051] The inventive concept of the present application will be further described below by combining some specific embodiments.

[0052] Refer to Figure 1 , Figure 1 The recommended device structure schematic diagram of the air conditioner involved in the embodiment of the present application is shown.

[0053] The air conditioner comprises at least one processor 301, a memory 302, and a control program of the air conditioner stored in the memory and executable on the processor, and the control program of the air conditioner is configured to implement the steps of the control method of the air conditioner provided by the method.

[0054] The processor 301 can comprise one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 301 can be implemented in at least one of a hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 301 can also comprise a main processor and a coprocessor, the main processor being a processor for processing data in a wake-up state, also referred to as a CPU (Central Processing Unit), and the coprocessor being a low-power processor for processing data in a standby state. In some embodiments, the processor 301 can be integrated with a GPU (Graphics Processing Unit) that is responsible for rendering and drawing of content required to be displayed by a display screen.

[0055] The memory 302 can comprise one or more computer-readable storage media, which can be non-transitory. The memory 302 can also comprise a high-speed random access memory, and a non-volatile memory such as one or more disk storage devices, flash storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory 302 is used to store at least one instruction for being executed by the processor 301 to implement the control method of the air conditioner provided by the method embodiments in the present application.

[0056] The air conditioner further comprises a communication interface 303, and the processor 301, the memory 302, and the communication interface 303 can be connected through a bus or a signal line. Each peripheral device can be connected to the communication interface 303 through a bus, a signal line, or a circuit board.

[0057] The communication interface 303 can be used to connect at least one I / O (Input / Output) related peripheral device to the processor 301 and the memory 302. In some embodiments, the processor 301, the memory 302 and the communication interface 303 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 301, the memory 302 and the communication interface 303 can be implemented on a separate chip or circuit board, and the present embodiments are not limited in this regard.

[0058] In some embodiments, the aforementioned peripheral devices include a plurality of temperature sensors 304 for detecting indoor and outdoor ambient temperatures respectively, and a current meter 305 for detecting the compressor current of the air conditioner.

[0059] Those skilled in the art can understand that, Figure 1 The structure shown in the foregoing description does not constitute a limitation on the air conditioner, and can include more or fewer components than shown, or combine certain components, or arrange different components.

[0060] Based on the recommended structure of the air conditioner described above, a first embodiment of the control method of the air conditioner of the present embodiments is proposed. Referring to Figure 2 , Figure 2 A flowchart of the first embodiment of the control method of the air conditioner of the present embodiments is shown.

[0061] In the present embodiment, the method includes the following steps:

[0062] Step S101, after the air conditioner receives a heating mode operation instruction, the maximum rated frequency of the compressor of the air conditioner is obtained, and the compressor is controlled to start operation.

[0063] Step S102, the actual operation frequency of the compressor is controlled to rise to the maximum rated frequency.

[0064] In this step, the user can input a power-on instruction and a heating operation instruction through the man-machine interaction interface provided by the air conditioner, the remote controller of the air conditioner or the intelligent terminal in communication with the air conditioner, so as to control the air conditioner to start operation in the heating mode.

[0065] In the initial stage of the air conditioner starting operation in the heating mode, the maximum rated frequency and the maximum allowable current of the air conditioner under the current environmental state, such as the indoor ambient temperature or the outdoor ambient temperature, can be obtained according to the set value or the current environmental state. It is easy to understand that after the compressor of the air conditioner starts, the actual operation frequency of the compressor begins to rise, and finally reaches the maximum rated frequency to end the initial stage and enter the stable operation stage, at which time the compressor can continue to operate at a low frequency to reduce energy consumption.

[0066] In a specific embodiment, the maximum rated frequency and the maximum allowable current can be determined based on the indoor ambient temperature or the outdoor ambient temperature.

[0067] At this time, step S101 comprises:

[0068] Step A10, after the air conditioner receives the heating mode operation instruction, the second indoor real-time temperature and / or the outdoor real-time temperature are obtained, and the compressor is controlled to start operation.

[0069] Step A20, according to the second indoor real-time temperature and / or the outdoor real-time temperature, the current temperature interval corresponding to the air conditioner is determined.

[0070] Step A30, according to the current temperature interval, the maximum rated frequency of the compressor is determined.

[0071] Specifically, the second indoor real-time temperature is T1b, the outdoor real-time temperature is T4, after the air conditioner receives the heating mode operation instruction, the compressor starts operation, and the second indoor real-time temperature of the indoor environment and / or the outdoor real-time temperature of the outdoor environment are detected by the temperature sensor.

[0072] After detecting the second indoor real-time temperature of the indoor environment and / or the outdoor real-time temperature of the outdoor environment, according to the specific value of the detected second indoor real-time temperature and / or the outdoor real-time temperature of the outdoor environment, the current temperature interval in which the second indoor real-time temperature is located or the current temperature interval in which the outdoor real-time temperature is located can be determined. The air conditioner has a corresponding temperature interval and air conditioner operation parameter mapping table pre-stored therein. In the table, each temperature interval is mapped with a corresponding maximum rated frequency and maximum allowable current. The maximum rated frequency and the maximum allowable current corresponding to different temperature intervals can be different.

[0073] In the related art, the operating frequency of the compressor of the air conditioner is not allowed to exceed the maximum allowable operating current, thereby limiting the actual operating performance of the compressor, that is, limiting the operating efficiency of the air conditioner.

[0074] Step S103, when the actual operating frequency of the compressor reaches the maximum rated frequency, the first real-time current of the compressor is obtained.

[0075] After the air conditioner is started in heating mode, the actual operating frequency of the compressor is detected. The actual operating frequency of the compressor starts to rise until it reaches the maximum rated frequency. When the actual operating frequency reaches the maximum rated frequency, the first real-time current of the compressor motor is detected by the current meter in the air conditioner.

[0076] Step S104, according to the threshold range in which the first real-time current is located, the operating frequency of the compressor is controlled.

[0077] After the actual operating frequency of the compressor reaches the maximum rated frequency, the first real-time current of the compressor can be greater than, equal to, or less than the maximum allowable current of the compressor. Therefore, according to the threshold range in which the first real-time current is located, the operating frequency of the compressor is adjusted, so that in the initial stage of the heating mode, the operating frequency of the compressor is further adjusted, that is, the operating frequency of the compressor is more finely adjusted, so that the temperature of the indoor environment reaches the set temperature faster, thereby further improving the user experience.

[0078] As an embodiment, the second embodiment of the control method of the air conditioner is proposed on the basis of the first embodiment of the control method of the air conditioner. Figure 3 , Figure 3 The flowchart of the second embodiment of the control method of the air conditioner is shown.

[0079] In this embodiment, the control method of the air conditioner comprises:

[0080] Step S201, after the air conditioner receives a heating mode operating instruction, the maximum rated frequency of the compressor of the air conditioner is obtained, and the compressor is controlled to start operating.

[0081] Step S202, the actual operating frequency of the compressor is controlled to increase to the maximum rated frequency.

[0082] Step S203, when the actual operating frequency reaches the maximum rated frequency, the first real-time current of the compressor is obtained.

[0083] Step S204, if the first real-time current is less than or equal to a first preset threshold, the operating frequency of the compressor is increased by a set frequency; wherein the first preset threshold is less than the maximum allowable current of the compressor.

[0084] The air conditioner judges whether the first real-time current is greater than or equal to the first preset threshold, wherein the first preset threshold is a value less than the maximum allowable current, to judge whether the operating current of the compressor motor is close to the maximum allowable current, that is, to judge whether the compressor motor still has redundancy.

[0085] If the first real-time current is less than or equal to the first preset threshold, the operating current of the compressor motor still has redundancy, and the frequency of the compressor can continue to be increased. At this time, the actual operating frequency of the compressor can be controlled to increase by a set frequency, that is, to operate beyond the maximum rated frequency.

[0086] In the embodiment, the compressor is controlled to run at a frequency exceeding the maximum rated frequency to improve the heating rate of the air conditioner at the initial stage of the heating start, thereby improving the temperature rising rate of the indoor environment, and further improving the user experience.

[0087] In a specific embodiment, the air conditioner is started to heat, and the temperature sensor detects the value of T1b or T4. The current temperature interval is determined according to T1 or T4, and the maximum rated frequency Fmax and the maximum allowable current Imax of the compressor are obtained.

[0088] When the actual running frequency of the compressor rises to Fmax, the air conditioner detects the first real-time current I of the compressor motor by the current meter. The first preset threshold is Imax-△I.

[0089] It is determined whether I≤Imax-△I is established. The value range of△I is [0.5-2A], and 1A can be selected. That is,△I represents that the current can continue to rise.

[0090] If I≤Imax-△I, the actual running frequency of the compressor is controlled to increase△F,△F∈[1Hz, 5Hz,] and 1Hz can be selected, to run at a frequency exceeding Fmax.

[0091] Therefore, in the embodiment, to ensure that the current of the compressor motor does not exceed the maximum allowable current, the compressor can be controlled to increase the frequency by△F each time to run at a frequency exceeding the maximum rated frequency, thereby improving the heating speed of the air conditioner at the initial stage.

[0092] Step S205, if the actual running frequency is less than or equal to the first preset frequency, return to step S203.

[0093] Step S206, if the actual running frequency is greater than the first preset frequency, the current running frequency of the compressor is maintained.

[0094] After the compressor runs at a frequency exceeding the maximum rated frequency, it is determined whether the actual running frequency reaches the first preset frequency to determine the influence of the frequency increase on the running state of the compressor.

[0095] The first preset frequency can be Fmax+n△F. The value range of n is 0-15, and 10 can be selected. That is, the compressor can be increased in frequency by△F at most 10 times.

[0096] In the embodiment, if the actual running frequency is less than or equal to the first preset frequency, the compressor can continue to increase the frequency, at this time, step S203 is returned to be executed, and then the frequency continues to increase by △F. Until the actual running frequency reaches the first preset frequency, at this time, the actual running frequency of the compressor reaches the preset upper limit of the frequency increase. In order to avoid the actual running frequency of the compressor from being unlimitedly increased and damaged.

[0097] In the embodiment, through the limitation of the first preset frequency, it is ensured that the actual running frequency of the compressor does not exceed the first preset frequency, so that the heating speed of the air conditioner in the initial stage is improved in the case of reaching the maximum rated frequency and reliably running.

[0098] As an embodiment, the third embodiment of the control method of the air conditioner is proposed on the basis of the first embodiment and the second embodiment of the control method of the air conditioner. Figure 4 , Figure 4 The flowchart of the third embodiment of the control method of the air conditioner is shown.

[0099] In the embodiment, the method comprises the following steps:

[0100] Step S301, after the air conditioner receives a heating mode running instruction, the maximum rated frequency of the compressor of the air conditioner is acquired, and the compressor is controlled to start running.

[0101] Step S302, the actual running frequency of the compressor is controlled to increase to the maximum rated frequency.

[0102] Step S303, when the actual running frequency reaches the maximum rated frequency, the first real-time current of the compressor is acquired.

[0103] Step S304, if the first real-time current is greater than the first preset threshold and less than or equal to the maximum allowable current of the compressor, the current running frequency of the compressor is maintained.

[0104] Step S305, if the first real-time current is greater than the maximum allowable current, the running frequency of the compressor is controlled to decrease by a set frequency. After the running frequency of the compressor is controlled to decrease by the set frequency, step S303 is returned to be executed.

[0105] In the embodiment, since the actual running frequency of the compressor has been increased to the maximum rated frequency, the first real-time current I is detected in the running process of the compressor reaching the maximum rated frequency, to judge the influence on the running state of the compressor. When the first real-time current does not exceed the first preset threshold Imax-△I, the compressor can continue to increase the frequency, such as continuing to increase the frequency by △F each time, until the actual running frequency of the compressor reaches the first preset frequency.

[0106] When the first real-time current I of the compressor satisfies the condition Imax-△I≤I2≤Imax, it indicates that there is no room for the actual operating frequency of the compressor to rise, and the current operating frequency of the compressor can be maintained at this time. That is, if the compressor does not increase the frequency, the maximum rated frequency is maintained, and if the compressor has increased the frequency by one set frequency once or more, the current operating frequency of the compressor is maintained.

[0107] When the second real-time current I2 of the compressor satisfies the condition I>I max, it indicates that the compressor has been overloaded in the current operating range, and the operating frequency of the compressor needs to be reduced at this time, thereby reducing the real-time current of the compressor.

[0108] For example, the actual operating frequency of the compressor is Fmax, and at this time, the actual operating frequency of the compressor after frequency reduction is Fmax-△F.

[0109] If steps S304 and S305 are performed after the step of controlling the operating frequency of the compressor to increase by one set frequency, and at this time the actual operating frequency of the compressor is increased by one or more △F, then it is reduced by one △F. For example, the current actual operating frequency of the compressor is Fmax+9△F, and at this time, Fmax+9△F is taken as the second initial frequency, and the frequency is reduced by the second preset rate of △F each time. For example, after frequency reduction, the current actual operating frequency of the compressor is Fmax+8△F. After the frequency reduction of the air conditioner, the air conditioner can continue to operate at a frequency exceeding the maximum rated frequency. After the frequency reduction, the first real-time current of the compressor is obtained again, so as to judge the influence on the operating state of the compressor.

[0110] As an embodiment, on the basis of the first embodiment to the third embodiment of the control method of the air conditioner of the present application, the fourth embodiment of the control method of the air conditioner of the present application is proposed. Referring to Figure 5 , Figure 5 The flow step schematic diagram of the fourth embodiment of the control method of the air conditioner of the present application is shown.

[0111] In this embodiment, the method comprises the following steps:

[0112] Step S401, after the air conditioner receives a heating mode operation instruction, the maximum rated frequency of the compressor of the air conditioner is obtained, and the compressor is controlled to start operation.

[0113] Step S402, the actual operating frequency of the compressor is controlled to increase to the maximum rated frequency.

[0114] Step S403, after the actual operating frequency reaches the maximum rated frequency, the first real-time current of the compressor is obtained.

[0115] Step S404, according to the threshold range in which the first real-time current is located, the operating frequency of the compressor is controlled.

[0116] Steps S401 to S404 can refer to the steps of the above-described embodiments, which will not be described again here.

[0117] Step S405, acquiring the first indoor real-time temperature and the set temperature;

[0118] Step S406, adjusting the actual operation frequency of the compressor according to the first indoor real-time temperature and the set temperature.

[0119] Specifically, in the embodiment, after the operation frequency of the compressor is adjusted according to the threshold of the first real-time current, the temperature of the indoor environment starts to rise, at this time, the first indoor real-time temperature and the set temperature can be acquired to adjust the actual operation frequency of the compressor according to the rising of the temperature of the indoor environment, such as adjusting the actual operation frequency to below the maximum rated frequency when the temperature of the indoor environment meets the user's requirement, to avoid the compressor being overloaded or overheated for a long time by running above the maximum rated frequency.

[0120] Wherein, the first indoor real-time temperature is T1a, and the set temperature is Ts.

[0121] Specifically, step S406 includes:

[0122] Step B10, if the first indoor real-time temperature is less than the set temperature, and the difference between the set temperature and the first indoor real-time temperature is less than or equal to the second preset threshold, controlling the compressor to run at the maximum rated frequency.

[0123] Specifically, the second preset threshold is ΔT1, if ΔT2 < Ts-T1a ≤ ΔT1, the real-time temperature of the indoor environment has approached the set temperature of the user, and the compressor runs at Fmax. The value range of ΔT1 is 1-10℃, which can be selected as 3℃. ΔT2 is the third preset threshold. The value range of ΔT2 is 0-5℃, which can be selected as 0.5℃.

[0124] When the real-time temperature of the indoor environment has approached the set temperature of the user, the actual operation frequency can be controlled to be adjusted to below the maximum rated frequency, to avoid the compressor being overloaded or overheated for a long time by running above the maximum rated frequency.

[0125] Step B20, if the first indoor real-time temperature is less than the set temperature, and the absolute value of the difference between the first indoor real-time temperature and the set temperature is less than or equal to the third preset threshold, controlling the compressor to run at the current frequency;

[0126] If the first indoor real-time temperature is greater than or equal to the set temperature, and the absolute value of the difference between the first indoor real-time temperature and the set temperature is less than or equal to the third preset threshold, controlling the compressor to run at the current frequency.

[0127] Specifically, the third preset threshold is ΔT2. The value of ΔT2 ranges from 0 to 5℃, and can be 0.5℃.

[0128] - ΔT2≤ Ts-T1a≤ ΔT2, at this time, the real-time temperature of the indoor environment has exceeded the set temperature Ts of the user, but is within the allowed exceeding range, at this time, the compressor can be controlled to stop frequency increasing, and the current actual operating frequency at the time of stopping frequency increasing is taken as the operating frequency to continue operating.

[0129] Step B30, if the first indoor real-time temperature is greater than the set temperature, and the difference between the set temperature and the first indoor real-time temperature is less than or equal to the fourth preset threshold, the current actual operating frequency of the compressor is taken as the third initial frequency, and the compressor is controlled to operate at a third preset rate of frequency decreasing.

[0130] The second preset threshold, the third preset threshold and the fourth preset threshold are sequentially decreased. The fourth preset threshold can be negative.

[0131] Specifically, the fourth preset threshold is ΔT3. In this step, Ts-T1a≤ ΔT3, wherein ΔT3< -ΔT2. At this time, the value of ΔT3 ranges from -5 to 0℃, and can be -1℃, at this time, the real-time temperature of the indoor environment has exceeded the set temperature Ts of the user, and exceeds the allowed range, so the frequency can be controlled to decrease by ΔF. For example, the current actual operating frequency of the compressor is Fmax+9ΔF, when it is judged that Ts-T1a≤ -1℃ is established, Fmax+9ΔF is taken as the third initial frequency, and the frequency is decreased by ΔF each time to decrease the frequency at the second preset rate. For example, after frequency decreasing, the current actual operating frequency of the compressor is Fmax+8ΔF. The air conditioner continues to operate at more than the maximum rated frequency after frequency decreasing.

[0132] In a specific embodiment, the air conditioner is started to heat, and the values of T1b or T4 are obtained by the temperature sensor, the current temperature interval is determined according to T1 or T4, so as to obtain the maximum rated frequency Fmax and the maximum allowed current Imax of the compressor.

[0133] When the actual operating frequency of the compressor rises to Fmax, the first real-time current I of the compressor motor is detected by the current meter. It is judged whether I≤ Imax-△I is established. The value of△I ranges from 0.5 to 2A, and can be 1A.

[0134] If I≤ Imax-△I, Fmax is taken as the first initial frequency, and the first preset rate is that the operating frequency of the compressor is increased by△F each time,△F∈[1, 5Hz,] and can be 1Hz, so as to control the compressor to operate at more than the maximum rated frequency.

[0135] And after the compressor runs at a frequency higher than the maximum rated frequency, the first indoor real-time temperature T1a is detected.

[0136] If Ts-T1a≤△T1, the real-time temperature of the indoor environment has approached the user's set temperature, and the compressor runs at Fmax.

[0137] If -△T2≤Ts-T1a≤△T2, the compressor is controlled to stop frequency raising, and the current actual running frequency when the frequency raising is stopped is taken as the running frequency to continue running.

[0138] If Ts-T1a≤△T3, the frequency is thus controlled to reduce △F.

[0139] In addition, referring to Figure 6 , Figure 6 A functional module schematic diagram of a control device of an air conditioner is shown. The application further provides a control device of an air conditioner, which comprises:

[0140] A start-up control module 10 is configured to acquire the maximum rated frequency of a compressor of the air conditioner after the air conditioner receives a heating mode running instruction, and control the compressor to start running;

[0141] A frequency raising module 20 is configured to control the actual running frequency of the compressor to raise to the maximum rated frequency;

[0142] A current acquisition module 30 is configured to acquire the first real-time current of the compressor when the actual running frequency reaches the maximum rated frequency;

[0143] A frequency control module 40 is configured to control the running frequency of the compressor according to the threshold range in which the first real-time current is located.

[0144] Other embodiments of the control device of the air conditioner can refer to the description of the above method embodiments, which will not be described here.

[0145] In addition, the embodiments of the application further provide a computer readable storage medium, and the computer readable storage medium stores a control program of an air conditioner. When the control program of the air conditioner is executed by a processor, the steps of the control method of the air conditioner are implemented. Therefore, the description will not be repeated here. In addition, the beneficial effects of the same method are not described again. For technical details not disclosed in the computer readable storage medium embodiments involved in the present application, please refer to the description of the method embodiments of the present application. It is determined that the program instructions can be deployed to execute on one computing device, or execute on multiple computing devices located in one place, or execute on multiple computing devices distributed in multiple places and interconnected through a communication network.

[0146] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing relevant hardware. The above-mentioned program can be stored in a computer readable storage medium, and the program can include the processes of the above-mentioned embodiment methods when executed.

[0147] Through the above description of the embodiments, those skilled in the art can clearly understand that the present application can be realized by means of software and necessary general hardware, and of course can also be realized by means of special hardware including special integrated circuits, special CPUs, special memories, special components, etc. Generally, any function completed by a computer program can be easily realized by corresponding hardware, and the specific hardware structure for realizing the same function can also be various, such as analog circuits, digital circuits or special circuits, etc. However, for the present application, software program implementation is a better embodiment. Based on this understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a readable storage medium, such as a floppy disk, a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc., and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server or a network device, etc.) to execute the method described in each embodiment of the present application.

[0148] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the specification and drawings of the present application, is also included in the patent protection scope of the present application.

Claims

1. A control method of an air conditioner, characterized by, The method comprises: after the air conditioner receives a heating mode operation instruction, acquiring a maximum rated frequency of a compressor of the air conditioner, and controlling the compressor to start operation; controlling an actual operation frequency of the compressor to increase to the maximum rated frequency; when the actual operation frequency reaches the maximum rated frequency after the compressor starts operation, acquiring a first real-time current of the compressor; controlling the operation frequency of the compressor according to a threshold range in which the first real-time current is located; the controlling the operation frequency of the compressor according to the threshold range in which the first real-time current is located comprises: if the first real-time current is less than or equal to a first preset threshold, controlling the operation frequency of the compressor to be greater than the maximum rated frequency; wherein the first preset threshold is less than a maximum allowable current of the compressor.

2. The control method of the air conditioner according to claim 1, characterized by, the controlling the operation frequency of the compressor according to the threshold range in which the first real-time current is located further comprises: if the first real-time current is greater than the first preset threshold and less than or equal to the maximum allowable current of the compressor, maintaining a current operation frequency of the compressor; if the first real-time current is greater than the maximum allowable current, controlling the operation frequency of the compressor to decrease by a set frequency; after the operation frequency of the compressor is controlled to decrease by the set frequency, returning to the step of acquiring the first real-time current of the compressor.

3. The control method of the air conditioner according to claim 1, wherein the method further comprises: acquiring a first indoor real-time temperature and a set temperature; adjusting the actual operation frequency of the compressor according to the first indoor real-time temperature and the set temperature.

4. The control method of the air conditioner according to claim 3, characterized by, the adjusting the actual operation frequency of the compressor according to the first indoor real-time temperature and the set temperature comprises: if the first indoor real-time temperature is less than the set temperature, and a difference between the set temperature and the first indoor real-time temperature is less than or equal to a second preset threshold, controlling the compressor to operate at the maximum rated frequency; if the first indoor real-time temperature is less than the set temperature, and an absolute value of the difference between the first indoor real-time temperature and the set temperature is less than or equal to a third preset threshold, controlling the compressor to operate at a current frequency; if the first indoor real-time temperature is greater than or equal to the set temperature, and an absolute value of the difference between the first indoor real-time temperature and the set temperature is less than or equal to the third preset threshold, controlling the compressor to operate at the current frequency; if the first indoor real-time temperature is greater than the set temperature, and a difference between the set temperature and the first indoor real-time temperature is less than or equal to a fourth preset threshold, taking a current actual operation frequency of the compressor as a third initial frequency, and controlling the compressor to decrease in frequency at a third preset rate; wherein the second preset threshold, the third preset threshold and the fourth preset threshold decrease in turn.

5. The control method of an air conditioner according to any one of claims 1 to 4, characterized by, the acquiring the maximum rated frequency of the compressor of the air conditioner after the air conditioner receives the heating mode operation instruction, and the controlling the compressor to start operation comprise: After the air conditioner receives a heating mode operation instruction, a second indoor real-time temperature and / or an outdoor real-time temperature are acquired, and the compressor is controlled to start operation; According to the second indoor real-time temperature and / or the outdoor real-time temperature, a current temperature interval corresponding to the air conditioner is determined; According to the current temperature interval, a maximum rated frequency of the compressor is determined.

6. A control device for an air conditioner, characterized by comprising: The air conditioner comprises: a start-up control module configured to acquire a maximum rated frequency of a compressor of the air conditioner after the air conditioner receives a heating mode operation instruction, and control the compressor to start operation; a frequency raising module configured to control an actual operation frequency of the compressor to be raised to the maximum rated frequency; a current acquisition module configured to acquire a first real-time current of the compressor when the actual operation frequency reaches the maximum rated frequency after the compressor starts operation; a frequency control module configured to control an operation frequency of the compressor according to a threshold range in which the first real-time current is located; the frequency control module is specifically configured to control the operation frequency of the compressor to be greater than the maximum rated frequency if the first real-time current is less than or equal to a first preset threshold; and the first preset threshold is less than a maximum allowable current of the compressor.

7. An air conditioner characterized by comprising: The air conditioner comprises: a memory, a processor, and a control program of the air conditioner stored in the memory and executable on the processor, the control program of the air conditioner being configured to implement the control method of the air conditioner according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, and the computer program, when executed by the processor, performs the control method of the air conditioner according to any one of claims 1 to 5.

Images