Control method of air conditioner

Abstract

The application provides a control method of an air conditioner, comprising: obtaining a first noise curve of the air conditioner in a first preset time period after the air conditioner is turned on, and / or obtaining a second noise curve of the air conditioner in a second preset time period before the air conditioner is turned off; at least in response to a second start signal of the air conditioner, controlling at least a running frequency of a compressor of the air conditioner according to the first noise curve and / or the second noise curve; and / or, in response to a second stop signal of the air conditioner, controlling at least the running frequency of the compressor according to the first noise curve and / or the second noise curve. The control method of the air conditioner provided by the application can reduce the abnormal sound caused by thermal expansion and cold shrinkage of the air conditioner due to the change of the refrigerant state when the air conditioner is turned on and turned off, thereby bringing good user experience.

Description

Air conditioner control methods Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a control method for an air conditioner. Background Technology

[0002] When an air conditioner is turned on or off, the compressor frequency increases or decreases rapidly, which generates noise. It also causes changes in the refrigerant state in the refrigeration system, producing abnormal noises due to thermal expansion and contraction. This can cause discomfort for people who are sensitive to noise, such as the elderly and children. Especially at night when people are resting, excessive noise can seriously disturb their rest, easily causing dissatisfaction, resulting in a poor user experience and even complaints. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide a control method for an air conditioner that overcomes or at least partially solves the above problems, which can reduce abnormal noise caused by changes in the refrigerant state when the air conditioner is turned on and off due to thermal expansion and contraction, and bring a good user experience.

[0004] Specifically, the present invention provides a control method for an air conditioner, comprising:

[0005] Obtain the first noise curve of the air conditioner after the air conditioner is turned on for a first preset time, and / or obtain the second noise curve of the air conditioner before the air conditioner is turned off for a second preset time;

[0006] At least in response to the secondary start signal of the air conditioner, based on the first noise curve and / or the second noise curve, at least the operating frequency of the air conditioner's compressor is controlled; and / or,

[0007] In response to the secondary shutdown signal of the air conditioner, the operating frequency of the compressor is controlled at least according to the first noise curve and / or the second noise curve.

[0008] Optionally, the response at least to the secondary start signal of the air conditioner includes the response to the secondary start signal of the air conditioner and the outdoor ambient temperature;

[0009] The method of controlling the operating frequency of the air conditioner's compressor based on the first noise curve and / or the second noise curve, in response to at least a secondary start signal of the air conditioner, includes:

[0010] Obtain the number of first noise peaks on the first noise curve that are higher than the first preset noise curve, and / or obtain the number of second noise peaks on the second noise curve that are higher than the second preset noise curve;

[0011] When the number of the first noise spikes is greater than or equal to the first preset value, or the number of the second noise spikes is greater than or equal to the second preset value:

[0012] In response to the secondary start signal of the air conditioner and the outdoor ambient temperature, the compressor is controlled to start at a first frequency and then increase to a second frequency according to a first preset program, wherein the first frequency is less than the second frequency.

[0013] Optionally, the step of controlling the operating frequency of the compressor in response to the secondary shutdown signal of the air conditioner, based on the first noise curve and / or the second noise curve, includes:

[0014] Obtain the number of first noise peaks on the first noise curve that are higher than the first preset noise curve, and / or obtain the number of second noise peaks on the second noise curve that are higher than the second preset noise curve;

[0015] When the number of the first noise spikes is greater than or equal to the first preset value, or the number of the second noise spikes is greater than or equal to the second preset value:

[0016] In response to the secondary shutdown signal of the air conditioner, the compressor is controlled to reduce its frequency according to a second preset program until the compressor shuts down.

[0017] Optionally, obtaining the number of first noise peaks on the first noise curve that are higher than the first preset noise curve, and / or obtaining the number of second noise peaks on the second noise curve that are higher than the second preset noise curve, includes:

[0018] Collect the first noise of the air conditioner after it is turned on for a first preset time, and plot the first noise as the first noise curve;

[0019] The number of noise peaks is obtained by counting the number of peaks on the first noise curve that are higher than the first preset noise curve at the corresponding positions; and / or

[0020] Collect a second noise from the air conditioner for a second preset time before the air conditioner is turned off, and plot the second noise as a second noise curve;

[0021] The number of peaks on the second noise curve that are higher than the second preset noise curve at the corresponding positions is counted to obtain the number of the second noise peaks.

[0022] Optionally, when the air conditioner is in heating mode and the outdoor ambient temperature is lower than a first preset temperature value, the first preset program includes:

[0023] The compressor is controlled to first run at the first frequency for a third preset duration, and then increase the frequency to the second frequency at the first rate; the second frequency is the frequency set by the user or the frequency corresponding to the outdoor ambient temperature;

[0024] When the air conditioner is in cooling mode, and the outdoor ambient temperature is higher than the second preset temperature value, the first preset program includes:

[0025] The compressor is controlled to first run at the first frequency for a fourth preset duration, and then increase the frequency to the second frequency at the second rate; the second frequency is the frequency set by the user or the frequency corresponding to the outdoor ambient temperature.

[0026] Optionally, the second preset program includes:

[0027] The compressor is controlled to first reduce its frequency to a third rate at a third rate, and after running for a fifth preset time or directly, the compressor is controlled to reduce its frequency to a fourth rate at a minimum rate, and then the compressor is turned off. The third rate is greater than the fourth rate.

[0028] Optionally, while controlling the compressor to start at a first frequency and increase the frequency to a second frequency according to a first preset program, the air conditioner is controlled to blow air upward at a first preset angle and a first preset wind speed.

[0029] Optionally, while controlling the compressor to reduce its frequency to shut down according to the second preset program, the air conditioner is controlled to blow air upwards at a second preset angle and a second preset wind speed, wherein the first preset wind speed is greater than the second preset wind speed.

[0030] Optionally, after controlling the compressor to start at a first frequency and increase the frequency to a second frequency according to a first preset program, the method further includes:

[0031] Control the air conditioner to blow air at the wind speed and air outlet angle set by the user, or control the air conditioner to blow air in a preset air blowing mode.

[0032] Optionally, after controlling the compressor to reduce its frequency according to the second preset program until the compressor shuts down, the method further includes:

[0033] After controlling the air conditioner to blow air upwards at a third preset angle and a third preset wind speed for a sixth preset duration, control the air conditioner to stop blowing air.

[0034] In the air conditioner control method of this invention, the operating frequency of the compressor is controlled according to the first noise curve and / or the second noise curve when the air conditioner is turned on or off for the second time. This can reduce the abnormal noise caused by the change of refrigerant state when the air conditioner is turned on and off, thus providing users with a better user experience.

[0035] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0036] The following sections will describe some specific embodiments of the invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0037] Figure 1 is a schematic flowchart of an air conditioner control method according to an embodiment of the present invention;

[0038] Figure 2 is a schematic flowchart of step S200 according to an embodiment of the present invention;

[0039] Figure 3 is a schematic flowchart of step S200 according to yet another embodiment of the present invention. Detailed Implementation

[0040] The control method of an air conditioner according to an embodiment of the present invention will now be described with reference to Figures 1 to 3. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0041] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Figure 1 is a schematic flowchart of an air conditioner control method according to an embodiment of the present invention. As shown in Figure 1, and referring to Figures 2 and 3, this embodiment of the present invention provides an air conditioner control method, including:

[0045] Step S100: Obtain the first noise curve of the air conditioner after the air conditioner is turned on for a first preset time, and / or obtain the second noise curve of the air conditioner before the air conditioner is turned off for a second preset time;

[0046] Step S200: At least in response to the secondary start signal of the air conditioner, based on the first noise curve and / or the second noise curve, control at least the operating frequency of the air conditioner's compressor; and / or,

[0047] In response to the secondary shutdown signal of the air conditioner, the operating frequency of the compressor is controlled at least according to the first noise curve and / or the second noise curve.

[0048] In step S100, the noise from the air conditioner mainly originates from the abnormal sounds caused by the thermal expansion and contraction due to the refrigerant's state changes during the period after the air conditioner is started and the period before it is turned off. Therefore, by detecting the noise from the air conditioner during these two time periods, the operating status of the air conditioner can be reflected. For example, the first preset duration is 3 to 7 minutes, preferably 5 minutes. The second preset duration is 3 to 7 minutes, preferably 5 minutes.

[0049] In step S200, when the air conditioner is turned on for the second time, the compressor's operating frequency is controlled according to either the first noise curve, the second noise curve, or both. When the air conditioner is turned off for the second time, the compressor's operating frequency is controlled according to either the first noise curve, the second noise curve, or both.

[0050] The aforementioned on and off signals can be temperature control signals. For example, an on signal is generated when the difference between the indoor temperature and the preset temperature is greater than the preset value, and an off signal is generated when the difference between the indoor temperature and the preset temperature is less than or equal to the preset value.

[0051] In this embodiment, the air conditioner can be turned on or off by the user, or the air conditioner compressor can automatically turn on or off according to the temperature after the user turns it on and before the user turns it off. In this case, the turning on or off of the compressor is also referred to as the turning on or off of the air conditioner.

[0052] In the air conditioner control method of this invention, the operating frequency of the compressor is controlled according to the first noise curve and / or the second noise curve when the air conditioner is turned on or off for the second time. This can reduce the abnormal noise caused by the change of refrigerant state when the air conditioner is turned on and off, thus providing users with a better user experience.

[0053] In some embodiments of the present invention, at least responding to the secondary start signal of the air conditioner includes responding to the secondary start signal of the air conditioner and the outdoor ambient temperature;

[0054] In step S200, at least in response to the secondary start signal of the air conditioner, the operating frequency of the air conditioner's compressor is controlled according to the first noise curve and / or the second noise curve, as shown in Figure 2, including:

[0055] Step S210: Obtain the number of first noise peaks on the first noise curve that are higher than the first preset noise curve, and / or obtain the number of second noise peaks on the second noise curve that are higher than the second preset noise curve;

[0056] Step S220: When the number of the first noise spikes is greater than or equal to the first preset value, or the number of the second noise spikes is greater than or equal to the second preset value:

[0057] In response to the air conditioner's second start signal and the outdoor ambient temperature, the compressor is controlled to start at a first frequency and then increase to a second frequency according to a first preset program, wherein the first frequency is less than the second frequency.

[0058] In step S210, the air conditioner also includes a microphone configured to collect noise data during the operation of the air conditioner.

[0059] In step S220, the compressor operates at a lower first frequency and then increases the frequency to a second frequency. That is, the compressor starts at a reduced frequency instead of starting directly at a high frequency, which reduces abnormal noise caused by thermal expansion and contraction due to refrigerant state changes during compressor startup. For example, the first preset value is 2 to 6, preferably 4. The second preset value is 2 to 6, preferably 4. The first frequency is below 45 Hz.

[0060] In some embodiments of the present invention, in step S200, in response to the secondary shutdown signal of the air conditioner, at least the operating frequency of the compressor is controlled according to the first noise curve and / or the second noise curve, as shown in FIG3, including:

[0061] Step S230: Obtain the number of first noise peaks on the first noise curve that are higher than the first preset noise curve, and / or obtain the number of second noise peaks on the second noise curve that are higher than the second preset noise curve;

[0062] Step S240: When the number of first noise spikes is greater than or equal to a first preset value, or the number of second noise spikes is greater than or equal to a second preset value:

[0063] In response to the air conditioner's secondary shutdown signal, the compressor is controlled to reduce its frequency according to the second preset program until the compressor shuts down.

[0064] In step S240, the compressor does not directly reduce its frequency to the lowest frequency until it shuts down, which can reduce the abnormal noise caused by the thermal expansion and contraction due to the change in the state of the refrigerant when the compressor shuts down.

[0065] In some embodiments of the present invention, step S210, obtaining the number of first noise peaks where the first noise curve is higher than the first preset noise curve, and / or obtaining the number of second noise peaks where the second noise curve is higher than the second preset noise curve, includes:

[0066] Step S211: Collect the first noise of the air conditioner after the air conditioner is turned on for a first preset time, and plot the first noise as a first noise curve;

[0067] Step S212: Count the number of peaks on the first noise curve that are higher than the first preset decibel difference at the corresponding positions on the first preset noise curve, and obtain the number of first noise peaks; and / or

[0068] Step S213: Collect the second noise of the air conditioner for a second preset time before the air conditioner is turned off, and plot the second noise as a second noise curve;

[0069] Step S214: Count the number of peaks on the second noise curve that are higher than the second preset decibel difference at the corresponding position on the second preset noise curve, and obtain the number of second noise peaks.

[0070] In steps S212 and S214, the first preset decibel difference is 2 to 4 dB, preferably 3 dB. The second preset decibel difference is 2 to 4 dB, preferably 3 dB.

[0071] In some embodiments of the present invention, when the air conditioner is in heating mode and the outdoor ambient temperature is lower than a first preset temperature value, the first preset procedure includes:

[0072] Step S221: Control the compressor to run at a first frequency for a third preset time, and then increase the frequency to a second frequency at a first rate; the second frequency is the frequency set by the user or the frequency corresponding to the outdoor ambient temperature;

[0073] When the air conditioner is in cooling mode and the outdoor ambient temperature is higher than the second preset temperature value, the first preset program includes:

[0074] Step S222: Control the compressor to run at the first frequency for a fourth preset time, and then increase the frequency to the second frequency at the second rate; the second frequency is the frequency set by the user or the frequency corresponding to the outdoor ambient temperature.

[0075] In step S221, the compressor frequency can be controlled more precisely based on the air conditioner's heating mode and the corresponding outdoor ambient temperature. The third preset duration is 160s to 200s, preferably 180s. The first rate is 1Hz / 8s to 1Hz / 12s, preferably 1Hz / 10s. The first preset temperature is 0℃ to 4℃, preferably 2℃.

[0076] In step S222, the compressor frequency can be controlled more precisely based on the air conditioner's cooling mode and the corresponding outdoor ambient temperature. The fourth preset duration is 40s to 80s, preferably 60s. The second rate is 1Hz / 3s to 1Hz / 7s, preferably 1Hz / 5s. The second preset temperature is 33℃ to 37℃, preferably 35℃. The first frequency in step S221 and the first frequency in step S222 may be equal or unequal.

[0077] In some embodiments of the present invention, step S240 includes the following preset procedure:

[0078] Step S241: Control the compressor to reduce its frequency to the third frequency at the third rate first. After running for the fifth preset time or directly, control the compressor to reduce its frequency to the lowest frequency at the fourth rate. Then the compressor is turned off. The third rate is greater than the fourth rate.

[0079] In step S241, when the air conditioner is in heating mode, the compressor first rapidly reduces its frequency to the third frequency, and after running for a fifth preset duration, the compressor is controlled to slowly reduce its frequency to the lowest frequency, and then the compressor shuts off. The fifth preset duration is 40s to 80s, preferably 60s. The fourth rate is 1Hz / 8 seconds to 1Hz / 12 seconds, preferably 1Hz / 10 seconds. The third frequency is a frequency greater than the lowest frequency and less than 45Hz. When the air conditioner is in cooling mode, the compressor first rapidly reduces its frequency to the third frequency, and then the compressor is directly controlled to slowly reduce its frequency to the lowest frequency, and then the compressor shuts off. The third rate and third frequency in cooling mode and heating mode can be equal or unequal. In cooling mode, the fourth rate is 1Hz / 3 seconds to 1Hz / 7 seconds, preferably 1Hz / 5 seconds. The third frequency is a frequency greater than the lowest frequency and less than 45Hz.

[0080] In some embodiments of the present invention, in step S220, while controlling the compressor to start at a first frequency and increasing the frequency to a second frequency according to a first preset program, the air conditioner is controlled to blow air upward at a first preset angle and a first preset wind speed.

[0081] While controlling the compressor's operation, the air outlet angle and airflow speed of the air conditioner are also controlled. The first preset airflow speed is greater than the minimum airflow speed plus 75% of the difference between the maximum and minimum airflow speeds. This first preset airflow speed can be referred to as the high airflow speed, allowing the air conditioner to quickly adjust the ambient temperature. The first preset angle is upward airflow to prevent direct airflow onto people. This step can be used in both heating and cooling modes. When the air conditioner is in heating or cooling mode, the first preset angle and first preset airflow speed can be equal or unequal. In this embodiment, the airflow angle of the air conditioner can be controlled by the air guide vane.

[0082] In some embodiments of the present invention, in step S240, while controlling the compressor to reduce its frequency to shut down according to the second preset program, the air conditioner is controlled to blow air upward at a second preset angle and a second preset wind speed, wherein the first preset wind speed is greater than the second preset wind speed.

[0083] This step can be used in both heating and cooling modes. When the air conditioner is in heating or cooling mode, the second preset angle and the second preset fan speed can be equal or unequal. The second preset fan speed is less than the minimum fan speed plus 25% of the difference between the maximum and minimum fan speeds; this second preset fan speed can be referred to as the low fan speed. The air conditioner blows air so that it can dissipate residual heat when the compressor is off; for example, in heating mode, it dissipates residual heat, and in cooling mode, it dissipates residual cold.

[0084] In some embodiments of the present invention, step S220, after controlling the compressor to start at a first frequency and increasing the frequency to a second frequency according to a first preset program, further includes:

[0085] Control the air conditioner to blow air at the user-set fan speed and air outlet angle, or control the air conditioner to blow air in a preset air blowing mode.

[0086] The preset airflow modes include: in heating mode, controlling the air conditioner to blow air downwards at a fourth preset fan speed and a fourth preset angle; in cooling mode, controlling the air conditioner to blow air upwards at a fourth preset fan speed and a fifth preset angle. The fourth preset fan speed is a high fan speed, relative to the second preset fan speed. The fourth preset fan speed in heating mode and the fourth preset fan speed in cooling mode can be equal or unequal.

[0087] In some embodiments of the present invention, after controlling the compressor to reduce its frequency according to the second preset program until the compressor shuts down in step S240, the method further includes:

[0088] After controlling the air conditioner to blow air upwards at a third preset angle and a third preset wind speed for a sixth preset duration, control the air conditioner to stop blowing air.

[0089] After the compressor stops running, the air conditioner will continue to blow air for a period of time to dissipate residual heat; that is, in heating mode, it dissipates residual heat, and in cooling mode, it dissipates residual cold. The third preset fan speed is less than the minimum fan speed plus 25% of the difference between the maximum and minimum fan speeds; this third preset fan speed can be referred to as the low fan speed. The third preset fan speed may or may not be equal to the second preset fan speed. The sixth preset duration is 40s to 80s, preferably 60s. The third preset fan speed and the sixth preset duration may be equal or unequal in heating and cooling modes.

[0090] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A control method for an air conditioner, characterized in that, include: Obtain the first noise curve of the air conditioner after the air conditioner is turned on for a first preset time, and / or obtain the second noise curve of the air conditioner before the air conditioner is turned off for a second preset time; At least in response to the secondary start-up signal of the air conditioner, based on the first noise curve and / or the second noise curve, at least the operating frequency of the compressor of the air conditioner is controlled; including: obtaining the number of first noise peaks on the first noise curve that are higher than a first preset noise curve, and / or obtaining the number of second noise peaks on the second noise curve that are higher than a second preset noise curve; when the number of first noise peaks is greater than or equal to a first preset value, or the number of second noise peaks is greater than or equal to a second preset value; the at least in response to the secondary start-up signal of the air conditioner includes responding to the secondary start-up signal of the air conditioner and the outdoor ambient temperature; responding to the secondary start-up signal of the air conditioner and the outdoor ambient temperature, controlling the compressor to operate at a frequency of the first noise curve and / or the second noise curve; The compressor is started at a frequency and its frequency is increased to a second frequency according to a first preset program, wherein the first frequency is less than the second frequency; and / or, in response to a secondary shutdown signal of the air conditioner, the operating frequency of the compressor is controlled at least according to the first noise curve and / or the second noise curve; including: obtaining the number of first noise spikes on the first noise curve that are higher than the first preset noise curve, and / or obtaining the number of second noise spikes on the second noise curve that are higher than the second preset noise curve; when the number of first noise spikes is greater than or equal to a first preset value, or the number of second noise spikes is greater than or equal to a second preset value: in response to a secondary shutdown signal of the air conditioner, the compressor is controlled to reduce its frequency to the point where the compressor shuts down according to a second preset program.

2. The control method for an air conditioner according to claim 1, characterized in that, The method of obtaining the number of first noise peaks on the first noise curve that are higher than the first preset noise curve, and / or obtaining the number of second noise peaks on the second noise curve that are higher than the second preset noise curve, includes: collecting the first noise of the air conditioner for a first preset time after the air conditioner is turned on, and plotting the first noise as the first noise curve; counting the number of peaks on the first noise curve that are higher than the first preset decibel difference at the corresponding position on the first preset noise curve, to obtain the number of first noise peaks; and / or collecting the second noise of the air conditioner for a second preset time before the air conditioner is turned off, and plotting the second noise as the second noise curve; counting the number of peaks on the second noise curve that are higher than the second preset decibel difference at the corresponding position on the second preset noise curve, to obtain the number of second noise peaks.

3. The control method for an air conditioner according to claim 1, characterized in that, When the air conditioner is in heating mode, and the outdoor ambient temperature is lower than a first preset temperature value, the first preset program includes: controlling the compressor to run at the first frequency for a third preset duration, and then increasing the frequency to the second frequency at a first rate; the second frequency is a user-set frequency or the frequency corresponding to the outdoor ambient temperature. When the air conditioner is in cooling mode, and the outdoor ambient temperature is higher than a second preset temperature value, the first preset program includes: controlling the compressor to run at the first frequency for a fourth preset duration, and then increasing the frequency to the second frequency at a second rate; the second frequency is a user-set frequency or the frequency corresponding to the outdoor ambient temperature.

4. The control method for an air conditioner according to claim 1, characterized in that, The second preset program includes: controlling the compressor to first reduce its frequency to a third frequency at a third rate, and after running for a fifth preset time or directly, controlling the compressor to reduce its frequency to a minimum frequency at a fourth rate, and then shutting down the compressor, wherein the third rate is greater than the fourth rate.

5. The control method for an air conditioner according to claim 1, characterized in that, The compressor is controlled to start at a first frequency and increase to a second frequency according to a first preset program, while the air conditioner is controlled to blow air upward at a first preset angle and a first preset wind speed.

6. The control method for an air conditioner according to claim 5, characterized in that, While controlling the compressor to reduce its frequency to shut down according to the second preset program, the air conditioner is controlled to blow air upwards at a second preset angle and a second preset wind speed, wherein the first preset wind speed is greater than the second preset wind speed.

7. The control method for an air conditioner according to claim 1, characterized in that, After controlling the compressor to start at a first frequency and increase the frequency to a second frequency according to a first preset program, the method further includes: controlling the air conditioner to blow air at a wind speed and air outlet angle set by the user, or controlling the air conditioner to blow air in a preset blowing mode.

8. The control method for an air conditioner according to claim 1, characterized in that, After controlling the compressor to reduce its frequency according to the second preset program until the compressor is turned off, the method further includes: controlling the air conditioner to blow air upwards at a third preset angle and a third preset wind speed for a sixth preset duration, and then controlling the air conditioner to stop blowing air.

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