Air conditioner and control method thereof

Abstract

The present application relates to air treatment equipment technical field, particularly to an air conditioner and a control method thereof. The control method comprises: in response to the start of the compressor, obtaining the indoor environment temperature; obtaining the time required for the indoor environment temperature to reach the first target temperature, obtaining the first time; in response to the indoor environment temperature reaching the first target temperature, obtaining the frequency of the compressor, obtaining the first frequency; according to the first time and the first frequency, controlling the compressor to operate at the second frequency, the second frequency is less than the first frequency. The present application controls the compressor to execute the second frequency according to the first time and the first frequency, that is, controls the compressor to reduce the frequency, so as to reduce the refrigeration or heating efficiency of the air conditioner, so as to realize the purpose of the air conditioner reaching the temperature without stopping, avoids the frequent start and stop of the compressor, improves the service life of the compressor and the reliability and safety of the air conditioner, reduces the indoor environment temperature fluctuation, and improves the user experience.

Description

Technical Field

[0001] This invention relates to the field of air handling equipment technology, and in particular to an air conditioner and its control method. Background Technology

[0002] Currently, with rapid social development and the continuous improvement of people's living standards, people's demands for quality of life are also increasing. Air conditioners, as important electrical appliances, are gradually entering thousands of households and are being used by everyone. Existing air conditioners stop working when the room temperature reaches the user's set temperature (i.e., they shut down when the set temperature is reached), and restart when the room temperature exceeds the set temperature. Therefore, existing air conditioners have a problem of frequent shutdowns when the set temperature is reached. This leads to large fluctuations in room temperature, high operating noise, and seriously affects the lifespan of the compressor, thus greatly reducing the reliability and safety of the air conditioner and lowering the user experience. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide an air conditioner and its control method that overcome or at least partially solve the above problems, aiming to solve the problem of frequent shutdown after reaching the set temperature in existing air conditioners, so as to improve the user experience.

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

[0005] In response to the compressor starting, the indoor ambient temperature is obtained;

[0006] The time required for the indoor ambient temperature to reach the first target temperature is obtained, thus obtaining the first time.

[0007] In response to the indoor ambient temperature reaching a first target temperature, the frequency of the compressor is acquired to obtain a first frequency;

[0008] Based on the first time and the first frequency, the compressor is controlled to operate at a second frequency, which is less than the first frequency.

[0009] Optionally, the control method further includes: in response to compressor startup, acquiring a set temperature of the air conditioner and a first temperature compensation value, wherein the first temperature compensation value is a positive value; and determining a first target temperature based on the set temperature and the first temperature compensation value;

[0010] When the air conditioner is in cooling operation: the first target temperature is the sum of the set temperature and the first temperature compensation value; the indoor ambient temperature reaching the first target temperature includes: the indoor ambient temperature being less than or equal to the first target temperature;

[0011] When the air conditioner is in heating mode: the first target temperature is the difference between the set temperature and the first temperature compensation value; the indoor ambient temperature reaching the first target temperature includes: the indoor ambient temperature being greater than or equal to the first target temperature.

[0012] Optionally, the second frequency is the product of the first frequency and a first preset coefficient, wherein the first preset coefficient is less than 1.

[0013] Optionally, the first preset coefficient is positively correlated with the first time.

[0014] Optionally, controlling the compressor to operate at a second frequency based on the first time and the first frequency includes:

[0015] If the first time is less than or equal to the first time threshold, the first preset coefficient is assigned the first coefficient.

[0016] If the first time is less than or equal to the second time threshold and greater than the first time threshold, the first preset coefficient is assigned the value of the second coefficient;

[0017] If the first time is greater than the second time threshold, the first preset coefficient is assigned the value of the third coefficient;

[0018] Wherein, the third coefficient > the second coefficient > the first coefficient.

[0019] Optionally, the control method further includes:

[0020] In response to the compressor operating at the second frequency for a second time, it is determined whether the current indoor ambient temperature has reached the second target temperature;

[0021] If so, control the compressor to reduce its frequency;

[0022] If not, control the compressor to continue operating at the second frequency.

[0023] Optionally, controlling the compressor to reduce its frequency includes: controlling the compressor to reduce its frequency according to a coefficient setting program;

[0024] The method of controlling the compressor to reduce its frequency according to a set coefficient includes: controlling the compressor to operate at a third frequency, wherein the third frequency is the product of the second frequency and a second preset coefficient, and the second preset coefficient is less than 1.

[0025] Optionally, when the air conditioner is in cooling operation: the second target temperature is less than or equal to the first target temperature; the step of determining whether the current indoor ambient temperature has reached the second target temperature includes: determining whether the indoor ambient temperature is less than the second target temperature;

[0026] When the air conditioner is in heating mode: the second target temperature is greater than or equal to the first target temperature; the determination of whether the current indoor ambient temperature has reached the second target temperature includes: determining whether the indoor ambient temperature is greater than the second target temperature.

[0027] Optionally, the control method further includes: when the indoor ambient temperature meets preset conditions, controlling the compressor to operate at a room temperature PID frequency;

[0028] Controlling the compressor to operate at a room temperature PID frequency includes: acquiring a set temperature and a real-time indoor ambient temperature; calculating the difference between the set temperature and the real-time indoor ambient temperature; performing PID calculation based on the difference to obtain the room temperature PID frequency; and controlling the compressor to execute the room temperature PID frequency.

[0029] When the air conditioner is in cooling mode, the preset conditions include: the indoor ambient temperature is greater than a third preset temperature, and the third preset temperature is greater than the set temperature;

[0030] When the air conditioner is in heating mode, the preset conditions include: the indoor ambient temperature is greater than a third preset temperature, and the third preset temperature is less than the set temperature;

[0031] The control method for the air conditioner further includes: when the compressor reduces its frequency to the lowest frequency, and the time spent running at the lowest frequency is greater than or equal to a preset time, then the compressor is controlled to stop.

[0032] The present invention also provides an air conditioner, including a control device, the control device including a memory and a processor, the memory storing a control program, the control program being executed by the processor to implement the control method of the air conditioner as described in any of the above claims.

[0033] In the control method of this invention, when the indoor ambient temperature reaches the first target temperature, the compressor is controlled to execute a second frequency based on a first time and a first frequency. This means the compressor is controlled to reduce its frequency to decrease the cooling or heating efficiency of the air conditioner, thereby achieving the goal of the air conditioner operating without stopping when the target temperature is reached. This not only avoids frequent compressor starts and stops but also prevents excessive noise caused by discontinuous sound from the air conditioner, improving the compressor's lifespan, the air conditioner's reliability and safety, and reducing indoor temperature fluctuations, thus enhancing the user experience. Furthermore, since the second frequency is determined based on both the first time and the first frequency, the control method of this invention can maintain the indoor ambient temperature as close as possible to the first target temperature after the compressor reduces its frequency, thereby minimizing indoor temperature fluctuations and saving energy.

[0034] Therefore, those skilled in the art will more clearly understand the above and other objects, advantages and features of the present invention from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0035] The following sections will describe some specific embodiments of the invention in detail 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:

[0036] Figure 1 This is a schematic flowchart of a control method for an air conditioner according to an embodiment of the present invention;

[0037] Figure 2 This is a schematic front view of an air conditioner according to an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of an air conditioning system according to an embodiment of the present invention;

[0039] Figure 4 This is a cross-sectional view of an air conditioner according to an embodiment of the present invention;

[0040] Figure 5 This is a cross-sectional view of an air conditioner according to an embodiment of the present invention;

[0041] Figure 6 This is a cross-sectional view of an air conditioner according to an embodiment of the present invention;

[0042] Figure 7 This is a cross-sectional view of an air conditioner according to an embodiment of the present invention;

[0043] Figure 8 This is a cross-sectional view of an air conditioner according to an embodiment of the present invention;

[0044] Figure 9 This is a cross-sectional view of an air conditioner according to an embodiment of the present invention;

[0045] Figure 10 This is a cross-sectional view of an air conditioner according to an embodiment of the present invention;

[0046] Figure 11 This is a cross-sectional view of an air conditioner according to an embodiment of the present invention;

[0047] Figure 12 This is a cross-sectional view of an air conditioner according to an embodiment of the present invention. Detailed Implementation

[0048] 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.

[0049] Figure 1 This is a schematic flowchart of an air conditioner control method according to an embodiment of the present invention, and in conjunction with... Figure 2-12 The present invention provides a control method for an air conditioner, the control method comprising the following steps:

[0050] Step S11: In response to the compressor starting, the indoor ambient temperature is obtained.

[0051] Step S12: Obtain the time required for the indoor ambient temperature to reach the first target temperature, thus obtaining the first time.

[0052] Step S13: In response to the indoor ambient temperature reaching the first target temperature, the compressor frequency is obtained to obtain the first frequency.

[0053] Step S14: Based on the first time and the first frequency, control the compressor to run at a second frequency, which is less than the first frequency.

[0054] Specifically, the control method includes the following steps: when the compressor starts, the indoor ambient temperature is acquired; when the indoor ambient temperature reaches the first target temperature, the time required for the indoor ambient temperature to reach the first target temperature is acquired to obtain the first time; and when the indoor ambient temperature reaches the first target temperature, the compressor frequency is acquired to obtain the first frequency; and the compressor is controlled to operate at a second frequency according to the first time and the first frequency, wherein the second frequency is less than the first frequency.

[0055] In this embodiment, when the indoor ambient temperature reaches the first target temperature, the compressor is controlled to execute a second frequency based on the first time and the first frequency. This means the compressor is controlled to reduce its frequency to decrease the cooling or heating efficiency of the air conditioner, thereby achieving the goal of stopping the air conditioner after reaching the target temperature. This not only avoids frequent compressor starts and stops but also prevents excessive noise caused by discontinuous sound from the air conditioner. It also improves the compressor's lifespan and the air conditioner's reliability and safety, reduces indoor temperature fluctuations, and prevents sudden changes in indoor temperature, thus enhancing the user experience. Furthermore, since the second frequency is determined based on both the first time and the first frequency, the control method of this invention can maintain the indoor ambient temperature as close as possible to the first target temperature after the compressor reduces its frequency, thereby minimizing indoor temperature fluctuations and saving energy.

[0056] In some optional embodiments of the present invention, the second frequency is the product of the first frequency and the first preset coefficient, wherein the first preset coefficient is less than 1.

[0057] In this embodiment, the method for obtaining the second frequency has the advantages of being simple and easy to calculate.

[0058] In some optional embodiments of the present invention, the first preset coefficient is positively correlated with the first time.

[0059] Specifically, the longer the first time, the larger the first preset coefficient, and thus the smaller the difference between the first frequency and the second frequency (that is, the smaller the decrease in the second frequency relative to the first frequency); the shorter the first time, the smaller the first preset coefficient, and thus the larger the difference between the first frequency and the second frequency (that is, the larger the decrease in the second frequency relative to the first frequency).

[0060] The design principle of this embodiment is as follows: the longer the time required for the indoor ambient temperature to reach the first target temperature, the lower the heat exchange efficiency (cooling efficiency or heating efficiency) of the original air conditioner. When the indoor ambient temperature reaches the first target temperature, it is not necessary to reduce the compressor frequency too much. This is because reducing the compressor frequency too much can easily lead to a large deviation between the indoor ambient temperature and the first preset temperature, resulting in relatively large fluctuations in the indoor ambient temperature.

[0061] The shorter the time required for the indoor temperature to reach the first target temperature, the higher the heat exchange efficiency (cooling efficiency or heating efficiency) of the original air conditioner. When the indoor temperature reaches the first target temperature, the compressor frequency needs to be reduced to a relatively lower level to save energy and achieve energy conservation and emission reduction.

[0062] Therefore, in this embodiment, the second frequency can be obtained more scientifically through the above settings. This not only avoids large fluctuations in indoor ambient temperature caused by excessive frequency reduction when the first time is long, but also avoids energy waste caused by insufficient frequency reduction when the first time is short.

[0063] In some optional embodiments of the present invention, controlling the compressor to operate at a second frequency according to a first time and a first frequency includes: if the first time is less than or equal to a first time threshold, assigning a first preset coefficient as a first coefficient; if the first time is less than or equal to a second time threshold and greater than the first time threshold, assigning the first preset coefficient as a second coefficient; if the first time is greater than the second time threshold, assigning the first preset coefficient as a third coefficient; wherein, the third coefficient > the second coefficient > the first coefficient, and the second time threshold > the first time threshold.

[0064] For example, the first coefficient is 0.50, the second coefficient is 0.65, and the third coefficient is 0.75; the first time threshold is 10 minutes, and the second time threshold is 20 minutes.

[0065] Specifically, the method of controlling the compressor to operate at a second frequency based on the first time and the first frequency includes: if the first time is ≤10min, the second frequency = the first frequency * 0.50; if 10min < the first time is ≤20min, the second frequency = the first frequency * 0.65; if the first time is >20min, the second frequency = the first frequency * 0.75.

[0066] In some optional embodiments of the present invention, the control method further includes: in response to compressor startup, acquiring a set temperature of the air conditioner and a first temperature compensation value, wherein the first temperature compensation value is positive; and determining a first target temperature based on the set temperature and the first temperature compensation value.

[0067] Specifically, when the compressor starts, the set temperature and the first temperature compensation value of the air conditioner are acquired. The first target temperature is determined by the set temperature and the first temperature compensation value, and the first compensation temperature is the absolute value of the difference between the first target temperature and the set temperature.

[0068] More preferably, the first temperature compensation value is 2 to 5°C, for example: the first temperature compensation value is 2°C, 2.5°C, 3°C, 3.5°C, 4°C, 4.5°C or 5°C.

[0069] In some optional embodiments of the present invention, when the air conditioner is running in cooling mode: the first target temperature is the sum of the set temperature and the first temperature compensation value; the indoor ambient temperature reaching the first target temperature includes: the indoor ambient temperature being less than or equal to the first target temperature.

[0070] Specifically, the control method includes the following steps:

[0071] Step S21: When the compressor starts and the air conditioner is in cooling operation, the indoor ambient temperature is acquired, and the set temperature and the first temperature compensation value of the air conditioner are acquired. The first temperature compensation value is positive. The first target temperature is determined based on the set temperature and the first temperature compensation value. The first target temperature = set temperature + first temperature compensation value.

[0072] Step S22: Obtain the time required for the indoor ambient temperature to reach the first target temperature, thus obtaining the first time.

[0073] Step S23: When the indoor ambient temperature is less than or equal to the first target temperature, obtain the compressor frequency to obtain the first frequency.

[0074] Step S24: Based on the first time and the first frequency, control the compressor to run at a second frequency, which is less than the first frequency.

[0075] In some optional embodiments of the present invention, when the air conditioner is in heating mode: the first target temperature is the difference between the set temperature and the first temperature compensation value; the indoor ambient temperature reaching the first target temperature includes: the indoor ambient temperature being greater than or equal to the first target temperature.

[0076] Specifically, the control method includes the following steps:

[0077] Step S31: When the compressor starts and the air conditioner is in heating mode, the indoor ambient temperature is acquired, and the set temperature and the first temperature compensation value of the air conditioner are acquired. The first temperature compensation value is positive. The first target temperature is determined based on the set temperature and the first temperature compensation value. The first target temperature = set temperature - first temperature compensation value.

[0078] Step S32: Obtain the time required for the indoor ambient temperature to reach the first target temperature, thus obtaining the first time.

[0079] Step S33: When the indoor ambient temperature is greater than or equal to the first target temperature, obtain the compressor frequency to obtain the first frequency.

[0080] Step S34: Based on the first time and the first frequency, control the compressor to run at a second frequency, which is less than the first frequency.

[0081] In some optional embodiments of the present invention, the control method further includes: step S15, in response to the compressor running at a second frequency for a second time, determining whether the current indoor ambient temperature has reached a second target temperature; step S16, if yes, controlling the compressor to reduce its frequency; if no, controlling the compressor to continue running at the second frequency.

[0082] Specifically, in step S15, "in response to the compressor operating at the second frequency for the second time" means when the compressor operates at the second frequency for the second time reaches the second time.

[0083] In this embodiment, the above settings can be used to determine whether the compressor's execution of the second frequency (first frequency reduction) effectively reduces the heat exchange efficiency (cooling efficiency or heating efficiency) of the air conditioner. If the indoor ambient temperature reaches the second target temperature, it indicates that the first frequency reduction is not effective and the compressor frequency needs to be further reduced to further reduce the heat exchange efficiency of the air conditioner and further save energy. If the indoor ambient temperature does not reach the second target temperature, the compressor is controlled to continue running at the second frequency.

[0084] Furthermore, in some optional embodiments of the present invention, in step S16, controlling the compressor to reduce its frequency includes: controlling the compressor to reduce its frequency according to a coefficient setting program.

[0085] Controlling the compressor to reduce its frequency according to the set coefficient program includes: controlling the compressor to run at a third frequency, where the third frequency is the product of the second frequency and the second preset coefficient, and the second preset coefficient is less than 1.

[0086] More preferably, when the air conditioner is operating in cooling mode, the second preset coefficient is negatively correlated with the real-time indoor ambient temperature. That is, when the air conditioner is operating in cooling mode, the lower the real-time indoor ambient temperature, the larger the second preset coefficient.

[0087] When the air conditioner is in heating mode, the second preset coefficient is positively correlated with the real-time indoor ambient temperature. In other words, when the air conditioner is in heating mode, the higher the real-time indoor ambient temperature, the lower the second preset coefficient.

[0088] In some optional embodiments of the present invention, in step S15, when the air conditioner is operating in cooling mode, the second target temperature is less than or equal to the first target temperature. Preferably, the second target temperature is less than the set temperature.

[0089] When the air conditioner is running in cooling mode, determining whether the current indoor ambient temperature has reached the second target temperature includes determining whether the indoor ambient temperature is lower than the second target temperature.

[0090] Further preferably, the control method further includes: in response to compressor startup, acquiring the set temperature and a first temperature compensation value of the air conditioner, wherein the first temperature compensation value is a positive value. When the air conditioner is in cooling mode, the second target temperature is the difference between the set temperature and the first temperature compensation value. Second target temperature = set temperature - first temperature compensation value, first target temperature = set temperature + first temperature compensation value. Even more preferably, the first temperature compensation value is 2–5°C, for example: the first temperature compensation value is 2°C, 2.5°C, 3°C, 3.5°C, 4°C, 4.5°C, or 5°C.

[0091] In some optional embodiments of the present invention, in step S15, when the air conditioner is in heating mode, the second target temperature is greater than or equal to the first target temperature; preferably, the second target temperature is equal to the first target temperature.

[0092] When the air conditioner is in heating mode, determining whether the current indoor ambient temperature has reached the second target temperature includes: determining whether the indoor ambient temperature is greater than the second target temperature.

[0093] Further preferably, the control method further includes: in response to compressor startup, acquiring the set temperature of the air conditioner and a first temperature compensation value, wherein the first temperature compensation value is a positive value. When the air conditioner is in heating mode, the second target temperature is the difference between the set temperature and the first temperature compensation value. First target temperature = set temperature - first temperature compensation value, second target temperature = set temperature - first temperature compensation value. Even more preferably, the first temperature compensation value is 2–5°C, for example: the first temperature compensation value is 2°C, 2.5°C, 3°C, 3.5°C, 4°C, 4.5°C, or 5°C.

[0094] In some optional embodiments of the present invention, the control method further includes the following steps: Step S17, when the indoor ambient temperature meets the preset conditions, the compressor is controlled to run at the room temperature PID frequency.

[0095] The control of the compressor to operate at the room temperature PID frequency includes: acquiring the set temperature and the real-time indoor ambient temperature, calculating the difference between the set temperature and the real-time indoor ambient temperature, performing PID calculation based on the difference to obtain the room temperature PID frequency; and controlling the compressor to execute the room temperature PID frequency.

[0096] In step S17, when the air conditioner is operating in cooling mode, the preset conditions include: the indoor ambient temperature is greater than a third preset temperature, and the third preset temperature is greater than the set temperature. For example: the third preset temperature = the set temperature + 1℃. Further, the third preset temperature is greater than the second target temperature.

[0097] In step S17, when the air conditioner is in heating mode, the preset conditions include: the indoor ambient temperature is greater than a third preset temperature, and the third preset temperature is less than the set temperature. For example: the third preset temperature = the set temperature - 1℃. Further, the third preset temperature is greater than the second target temperature.

[0098] In some optional embodiments of the present invention, the control method of the air conditioner further includes: when the compressor frequency is reduced to the lowest frequency, and the time of operation at the lowest frequency is greater than or equal to a preset time, the compressor is controlled to stop.

[0099] In some preferred embodiments of the present invention, the control method of the air conditioner includes the following steps: step S41, obtaining the heat exchange mode of the air conditioner; step S42, if the air conditioner is in cooling mode, executing the first control method; if the air conditioner is in heating mode, executing the second control method.

[0100] The first control method includes the following steps:

[0101] Step S4211: When the compressor starts, the indoor ambient temperature is acquired, and the set temperature and the first temperature compensation value of the air conditioner are acquired. The first temperature compensation value is positive. The first target temperature is determined based on the set temperature and the first temperature compensation value. The first target temperature = set temperature + first temperature compensation value.

[0102] Step S4212: Obtain the time required for the indoor ambient temperature to reach the first target temperature, thus obtaining the first time.

[0103] Step S4213: When the indoor ambient temperature is ≤ the first target temperature, obtain the compressor frequency to get the first frequency.

[0104] Step S4214: Based on the first time and the first frequency, control the compressor to run at the second frequency; specifically, if the first time ≤ 10min, the second frequency = the first frequency * 0.50; if 10min < the first time ≤ 20min, the second frequency = the first frequency * 0.65; if the first time > 20min, the second frequency = the first frequency * 0.75.

[0105] Step S4215: In response to the compressor running at the second frequency for a second time, determine whether the current indoor ambient temperature is lower than the second target temperature, where the second target temperature = set temperature - first temperature compensation value.

[0106] Step S4216: If yes, control the compressor to reduce its frequency until the temperature requirement is met; if no, control the compressor to continue running at the second frequency.

[0107] Step S4217: When the indoor ambient temperature is greater than the third preset temperature, control the compressor to run at the room temperature PID frequency; where the third preset temperature = set temperature + 1℃; when the compressor frequency drops to the lowest frequency and the running time at the lowest frequency is greater than or equal to the preset time, control the compressor to stop.

[0108] The second control method includes the following steps:

[0109] Step S4221: When the compressor starts, the indoor ambient temperature is acquired, and the set temperature and first temperature compensation value of the air conditioner are acquired. The first temperature compensation value is positive. The first target temperature is determined based on the set temperature and the first temperature compensation value. The first target temperature = set temperature - first temperature compensation value.

[0110] Step S4222: When the indoor ambient temperature is ≥ the first target temperature, obtain the time required for the indoor ambient temperature to reach the first target temperature, and obtain the first time.

[0111] Step S4223: When the indoor ambient temperature is ≥ the first target temperature, obtain the compressor frequency to get the first frequency.

[0112] Step S4224: Based on the first time and the first frequency, control the compressor to run at the second frequency; specifically, if the first time ≤ 10 min, the second frequency = the first frequency * 0.50; if 10 < the first time ≤ 20 min, the second frequency = the first frequency * 0.65; if the first time > 20 min, the second frequency = the first frequency * 0.75.

[0113] Step S4225: In response to the compressor running at the second frequency for the second time, determine whether the current indoor ambient temperature is greater than the second target temperature, where the second target temperature = set temperature - first temperature compensation value.

[0114] Step S4226: If yes, control the compressor to reduce its frequency until the temperature requirement is met; if no, control the compressor to continue running at the second frequency.

[0115] Step S4227: When the indoor ambient temperature is greater than the third preset temperature, control the compressor to run at the room temperature PID frequency; wherein, the third preset temperature = set temperature - 1℃; when the compressor frequency drops to the lowest frequency, and the running time at the lowest frequency is greater than or equal to the preset time, then control the compressor to stop.

[0116] In some alternative embodiments of the present invention, the air conditioner includes two side-by-side air outlets 10, which are a first air outlet and a second air outlet, respectively.

[0117] In some optional embodiments of the present invention, the air conditioner further includes a flow path control device. Each air outlet includes a first air outlet 11, an air duct, and a heat exchanger 15; the first air outlet 11 is located at the front of the air outlet, the air duct communicates with the first air outlet, and the heat exchanger 15 is disposed within the air duct; the flow path control device is configured to control both heat exchangers to operate simultaneously or only one heat exchanger to operate, and when no air is being discharged from either air outlet, the corresponding heat exchanger also does not operate. The heat exchanger in the first air outlet is the first heat exchanger, and the heat exchanger in the second air outlet is the second heat exchanger.

[0118] In this embodiment, since each air outlet includes a heat exchanger, the two air outlets can discharge heat-exchange air individually or simultaneously. In some alternative embodiments of the invention, the two air outlets share a single heat exchanger.

[0119] In some optional embodiments of the present invention, each air outlet 10 further includes a second air outlet 17 and a bypass duct; the second air outlet 17 is located on the front side of the air outlet and is on the side of the first air outlet 11 away from the other air outlet 10, and the bypass duct connects the second air outlet 17 and the duct. Both the first air outlet 11 and the second air outlet 17 extend along the length direction of the air outlet.

[0120] Each air outlet 10 has a first air guide surface connected to the corresponding first air outlet 11 on one side edge away from the other air outlet 10.

[0121] The indoor unit of the air conditioner also includes two air guiding devices 12. Each air guiding device 12 includes at least one air guiding plate, which is disposed at the corresponding first air outlet 11. It is used to guide the air out in the width direction of the first air outlet and can move to a wide-angle air guiding position that defines a wide-angle air duct with the first air guiding surface. When the air guiding plate moves to the wide-angle air guiding position, the edge of the air guiding plate closest to the second air outlet is located in front of the first air guiding surface.

[0122] During operation, the air guide device 12 on the air outlet 10 rotates to guide the direction of the air blown out from the first air outlet 11. In particular, when the air guide device 12 rotates to the wide-angle air guide position, at least a portion of the air blown out from the first air outlet 11 enters the wide-angle air duct defined by the first air guide surface and the air guide device, and is blown out in a direction away from the other air outlet 10, thereby expanding the air outlet angle of the first air outlet 11, and thus making the air outlet angle of the two air outlets 10 larger, thereby meeting the user's need for wide-angle air supply of the air conditioner.

[0123] In this embodiment, the control method further includes: acquiring the air supply mode selected by the user; if a wide-angle air supply mode instruction is received from the user, controlling the first air outlet and / or the second air outlet to operate in the wide-angle air supply mode.

[0124] The wide-angle air supply mode includes: controlling the air guide plates of the first air outlet and / or the second air outlet to move to the wide-angle air guiding position.

[0125] Figure 2 This is a schematic front view of an air conditioner according to an embodiment of the present invention, with reference to... Figures 3 to 12 The present invention also provides an air conditioner, which includes a control device. The control device includes a memory and a processor. The memory stores a control program, which, when executed by the processor, is used to implement the control method of the air conditioner as described in any of the above embodiments.

[0126] like Figure 4-12 As shown, in some optional embodiments of the present invention, the air conditioner includes two air outlets 10, which are respectively a first air outlet and a second air outlet. Each air outlet 10 has multiple air vents on its front side. When the two air outlets are vertically arranged, they are symmetrically arranged about a vertically extending reference plane. When the two air outlets are horizontally arranged, they are symmetrically arranged about a horizontally extending reference plane. The symmetrical arrangement of the air outlets 10 gives the air conditioner a stable and aesthetically pleasing design, conforming to the aesthetic preferences of Chinese people.

[0127] Furthermore, in some embodiments of the present invention, such as Figure 10 As shown, the two air outlets 10 are spaced apart to form an air intake gap 20 between them. When the two air outlets 10 blow air forward, the negative pressure drives the air in the air intake gap 20 to flow forward, so that this air mixes with the air blown out by the two air outlets 10. During cooling, this reduces the air temperature and prevents the air from being too "hard", producing a "soft" air effect.

[0128] In some embodiments of the present invention, each air outlet 10 includes a first air outlet 11, an air duct, and a heat exchanger. The air duct communicates with the first air outlet 11, and the heat exchanger 15 is disposed within the air duct. The air conditioner also includes a flow path control device configured to control both heat exchangers to operate simultaneously or only one heat exchanger to operate, such that when either air outlet is not discharging air, the corresponding heat exchanger is also not operating.

[0129] In these embodiments, each first air outlet 11 can discharge air independently. The air conditioner can discharge air from a single first air outlet 11 or from both first air outlets 11 simultaneously. When both discharge air simultaneously, the air conditioner can have a larger air volume and a wider air discharge range. The flow path control device controls the operating state of the heat exchanger 15 by controlling the on / off state of the working fluid flow path in the heat exchanger 15. The flow path control device can control both heat exchangers 15 to operate simultaneously, in which case both first air outlets 11 will simultaneously blow out heat exchange air. The flow path control device can also control only one of the two heat exchangers 15 to operate. In this case, when both first air outlets 11 discharge air simultaneously, the heat exchange air and non-heat exchange air can be mixed or blown separately to their respective designated areas. Mixed air discharge can make the outlet air temperature close to room temperature, avoiding discomfort caused by heat exchange air blowing directly on the user. Heat exchange air and non-heat exchange air can be blown separately to their respective designated areas, which can meet the different air discharge needs of users in different locations. The above settings enable the air conditioner to have multiple air discharge modes, which can meet more user needs.

[0130] like Figure 4 As shown, in some embodiments of the present invention, two heat exchangers 15 are arranged in parallel. The flow path control device includes a three-way valve 34. The three-way valve 34 has three openings, namely a first opening, a second opening, and a third opening. The first opening is connected to a four-way valve, and the second and third openings are respectively connected to the two heat exchangers. By controlling the opening and closing of the first and second openings of the three-way valve 34, the flow path of the working fluid in each heat exchanger is controlled, and the operation is stable and reliable.

[0131] like Figure 3 As shown, in some embodiments of the present invention, the air conditioner further includes a throttling device 33. The throttling device 33 is located upstream of the heat exchanger 15. The throttling device 33 is used to control the amount of working fluid entering the heat exchanger 15. The throttling device 33 generally includes a capillary tube, a mechanical expansion valve, an electronic expansion valve, or a solenoid valve, etc., preferably, the throttling device 33 is a solenoid valve.

[0132] like Figure 3 As shown, in some embodiments of the present invention, the air conditioner further includes a compressor 311, a condenser 36 connected in series, and a four-way valve 35 located between an electronic on / off valve 34 and the compressor 311. A throttling device is connected to the condenser 36. The compressor includes a receiver 312.

[0133] like Figure 4-12 As shown, in some embodiments of the present invention, each air outlet 10 further includes a second air outlet 17 and a bypass duct. The second air outlet 17 is located on the front side of the air outlet 10, and is on the side of the first air outlet 11 away from the other air outlet 10. The bypass duct connects the second air outlet 17 and the duct. Both the first air outlet 11 and the second air outlet 17 extend along the length direction of the air outlet 10.

[0134] like Figure 10 As shown, in some embodiments of the present invention, each air outlet 10 has a first air guide surface 32 connected to the corresponding first air outlet 11 on one side edge away from the other air outlet 10. The indoor unit of the air conditioner also includes two air guide devices 12, each air guide device 12 being respectively disposed at the corresponding first air outlet 11, for guiding air out in the width direction of the first air outlet 11 and movable to a wide-angle air guide position that defines a wide-angle air duct with the first air guide surface.

[0135] During operation, the air guide device 12 on the air outlet 10 rotates to guide the direction of the air blown out from the first air outlet 11, specifically, such as Figure 10 As shown, when the air guide device 12 is rotated to the wide-angle air guide position, at least a portion of the air blown out from the first air outlet 11 enters the wide-angle air duct defined by the first air guide surface 32 and the air guide device 12, and is blown out in a direction away from the other air outlet 10, thereby expanding the air outlet angle of the first air outlet 11, and thus making the air outlet angle of the two air outlets 10 larger, thereby meeting the user's demand for wide-angle air supply of the air conditioner.

[0136] like Figure 4-12 As shown, in some embodiments of the present invention, each air outlet includes an air outlet body and an air guide body 30. The front side of the air outlet body has a connecting opening extending along its length. Two edges extending along the length of the connecting opening are a first edge and a second edge, respectively. The surface of the air outlet body includes an air guide region connected to the first edge. The edge of the air guide region opposite to the first edge is a third edge. The air guide body 30 is disposed in front of the air guide region. The air guide body 30 includes a first air guide surface 32 disposed in front of the air guide body 30. The first air guide surface 32 has a fourth edge and a fifth edge, the fourth edge being close to the second edge, the fifth edge being close to the third edge, and the fifth edge being obliquely in front of the fourth edge. A bypass ventilation duct is formed between the air guide body 30 and the air guide region. The interval between the second edge and the end of the air guide body 30 having the fourth edge is a first air outlet 11, and the interval between the third edge and the end of the air guide body 30 having the fifth edge is a second air outlet 17. The bypass ventilation duct connects the connecting opening and the second air outlet 17.

[0137] In these implementations, by setting up an air outlet and an air guide body, each air outlet has two air outlets and a first air guide surface, thus achieving both wide-angle air outlet of the air conditioner and a novel design, achieving two goals at once.

[0138] In some embodiments of the present invention, such as Figure 4As shown, an air outlet structure 18 is provided at the second air outlet 17. The air outlet structure 18 causes the air passing through the second air outlet 17 to blow out towards the front side of the second air outlet 17 near the third edge. In other words, the air entering the bypass duct can also change its air outlet direction and expand the air outlet angle after passing through the air outlet structure 18.

[0139] In some embodiments of the present invention, such as Figure 5 As shown, the air outlet structure 18 includes multiple arc-shaped plates arranged in parallel. The multiple arc-shaped plates protrude in front of the first air outlet 11 so that the air passing through the arc-shaped plates is blown out towards the front side of the second air outlet 17 near the third edge.

[0140] Of course, in other embodiments of the present invention, the air outlet structure 18 causes the air passing through the second air outlet 17 to blow out in the direction directly in front of the second air outlet 17.

[0141] In some embodiments of the present invention, such as Figure 10 As shown, an air intake structure 19 is provided at the inlet of the bypass ventilation duct to disperse the airflow passing through the inlet of the bypass ventilation duct.

[0142] Furthermore, in some embodiments of the present invention, such as Figure 10 As shown, the air inlet structure 19 is a microperforated plate, with its two edges along the length direction connected to the fourth edge and the first edge, respectively. A portion of the air outlet air is dispersed by the microperforations through the microperforated plate, becoming a gentle breeze, thus making the outlet air more "soft".

[0143] In some embodiments of the present invention, the micropores are arranged horizontally.

[0144] In some embodiments of the present invention, such as Figure 10 As shown, the air guide body 30 also includes a second air guide surface 31 located behind the first air guide surface 32. The first air guide surface is an arc surface that arches away from the bypass ventilation duct. The second air guide surface 31 has a planar region connected to a fourth edge, with one end of the planar region away from the first edge located obliquely in front of the fourth edge. The fourth edge is located in front of the inlet of the bypass ventilation duct, meaning that the second air guide surface slopes obliquely forward from the front edge of the inlet of the bypass ventilation duct. Providing the second air guide surface 31 can reduce wind resistance and make it easier for the air entering the bypass ventilation duct through the air inlet structure 19 to pass through the air outlet structure 18 and be blown out.

[0145] In some embodiments of the present invention, the air outlet structure 18, the air inlet structure 19, and the air guide body 30 are integrally formed.

[0146] In some embodiments of the present invention, such as Figure 9As shown, the air guiding device 12 includes at least one air guiding plate. When the air guiding device moves to the wide-angle air guiding position, the edge of the air guiding plate closest to the air guiding body 30 is located in front of the first air guiding surface 32. This arrangement allows a wide-angle airflow channel to be formed between the air guiding plate closest to the air guiding body 30 and the first air guiding surface 32. Preferably, the air guiding device 12 includes two air guiding plates. The two air guiding plates are arranged along the width direction of the first air outlet 11.

[0147] In some embodiments of the present invention, such as Figure 4 As shown, the cross-section of the duct wall connected to the first edge at the first edge is used as a reference cross-section. The air guide is located on the side of the reference cross-section away from the first air outlet. This arrangement is beneficial for wide-angle air guidance without obstructing the air outlet.

[0148] In some embodiments of the present invention, the air intake interval 20 comprises only an inlet section and an outlet section that are connected to each other. The width of the outlet section gradually increases along the direction of airflow. The width of the inlet section gradually decreases along the direction of airflow. The above-described arrangement of the air intake interval 20 facilitates the entry of air behind the air intake interval 20 and also facilitates the forward flow of air within the air intake interval 20.

[0149] In some embodiments of the present invention, such as Figure 4 As shown, the second edge is located on the front side of the air outlet section.

[0150] In some embodiments of the present invention, such as Figure 4 As shown, the first edge is in front of the second edge.

[0151] In some embodiments of the present invention, such as Figure 4 As shown, the fourth edge is located diagonally in front of the corresponding second edge.

[0152] like Figure 11 As shown, in some embodiments of the present invention, the ratio of the distance d from the second edge to the vertical plane extending in the lateral direction where the foremost point of the air outlet 10 is located to the maximum thickness D of the air outlet 10 in the front-rear direction is less than 0.3. Preferably, in some embodiments, the ratio of the distance d from the second edge to the vertical plane extending in the lateral direction where the foremost point of the air outlet 10 is located to the maximum thickness D of the air outlet 10 in the front-rear direction is less than 0.17. More preferably, in some embodiments, the ratio of the distance d from the second edge to the vertical plane extending in the lateral direction where the foremost point of the air outlet 10 is located to the maximum thickness D of the air outlet 10 in the front-rear direction is equal to 0.135.

[0153] In these embodiments, the first air outlet 11 is "front-mounted" by setting the ratio of the distance d from the second edge to the vertical plane extending in the lateral direction where the front end of the air outlet 10 is located to the maximum thickness D of the air outlet 10 in the front-rear direction. This makes the airflow blown out from the first air outlet 11 more forward. Compared with the existing two first air outlets 11 being set opposite each other, this setting is beneficial to increase the air outlet angle of the indoor unit of the air conditioner to meet the needs of users.

[0154] In some embodiments of the present invention, such as Figure 11 As shown, the ratio of the distance h between the second and third edges in the lateral direction to the maximum thickness H of the air outlet 10 in the lateral direction is greater than or equal to 0.3. Preferably, in some embodiments, the ratio of the distance h between the second and third edges in the lateral direction to the maximum thickness H of the air outlet 10 in the lateral direction is greater than or equal to 0.4. More preferably, in some embodiments, the ratio of the distance h between the second and third edges in the lateral direction to the maximum thickness H of the air outlet 10 in the lateral direction is equal to 0.64.

[0155] In these embodiments, the air outlet range of the first air outlet 11 and the second air outlet 17 is ensured by setting the ratio of the distance h between the second edge and the third edge in the lateral direction to the maximum thickness H of the air outlet 10 in the lateral direction, thereby further expanding the air outlet range and air outlet angle of the air conditioner indoor unit.

[0156] In some embodiments of the present invention, such as Figure 11 As shown, the ratio of the width h1 of the first air outlet 11 to the maximum thickness H of the air outlet portion 10 in the lateral direction is greater than or equal to 0.2. Preferably, the ratio of the width h1 of the first air outlet 11 to the maximum thickness H of the air outlet portion 10 in the lateral direction is 0.36.

[0157] In some embodiments of the present invention, such as Figure 11 As shown, the ratio of the width h2 of the second air outlet 17 to the maximum thickness H of the air outlet portion 10 in the lateral direction is greater than or equal to 0.1. Preferably, the ratio of the width h2 of the second air outlet 17 to the maximum thickness H of the air outlet portion 10 in the lateral direction is 0.19.

[0158] like Figure 12As shown, in some embodiments of the present invention, the two vertical edges of the first air outlet 11 are the second edge and the sixth edge, respectively. The sixth edge is located on the side of the second edge away from the other air outlet 10, and the sixth edge is in front of the second edge. The plane containing the second edge and the sixth edge makes an angle α1 with the vertical reference plane, where α1 is greater than 40°. That is, the second edge is diagonally behind the sixth edge. This arrangement makes the first air outlet 11 "front-mounted," allowing the airflow from the first air outlet 11 to be further forward and more capable of flowing to both sides. Compared to the existing arrangement of two first air outlets facing each other, this arrangement is beneficial for increasing the air outlet angle of the indoor unit of the air conditioner to meet the needs of users.

[0159] Preferably, in some embodiments of the present invention, the angle α1 between the plane containing the second edge and the sixth edge and the vertical reference plane is 60° to 80°, such as 60°, 65°, 68°, 73°, 75°, 78°, etc.

[0160] In some embodiments of the present invention, the sixth edge position can be the position where the air guide device 12 contacts the first air guide surface 32 when the air guide device 12 closes the first air outlet 11.

[0161] In some embodiments of the present invention, the first air guide surface 32 is arc-shaped, which is more conducive to wide-angle air delivery.

[0162] In some embodiments of the present invention, the air outlet 10 includes a vertical plane extending in the lateral direction connected to the front edge of the first air guide surface 32, the vertical plane being the front end of the air outlet 10, and the second air outlet 17 being disposed on the vertical plane.

[0163] In some embodiments of the invention, the inner surface of the air guide plate directs the airflow away from the other air outlet 10. This arrangement also helps to increase the air outlet angle of the first air outlet 11.

[0164] In some embodiments of the present invention, the first air guide plate is close to the second edge. The first air guide plate and the second air guide plate are movable to a preset position. The angle between the front end cross-section of the inner surface of the first air guide plate and the vertical reference plane is a first angle. The angle between the front end cross-section of the inner surface of the second air guide plate and the vertical reference plane is a second angle. At the preset position, the first angle is smaller than the second angle, and the second angle is greater than 60°.

[0165] In some embodiments of the present invention, the air guiding device 12 includes a plurality of air guiding plates, each with a curved front surface. When the first air outlet 11 is closed, the second edge and the front surface of each air guiding plate are on the same curved surface. This arrangement makes the indoor unit of the air conditioner look harmonious and aesthetically pleasing.

[0166] In some embodiments of the present invention, such as Figure 12As shown, the first air guide plate is close to the second edge. The forward angle between the tangent plane containing the centerline of the front surface of the first air guide plate and the reference plane is α2, where α2 is between 40° and 90°, preferably 56°. The forward angle between the tangent plane containing the centerline of the front surface of the second air guide plate and the reference plane is α3, where α3 is between 70° and 90°, preferably 80°.

[0167] In some embodiments of the present invention, such as Figure 12 As shown, the angle θ between the air outlet direction of the second air outlet 17 and the vertical reference plane is greater than 50°. Preferably, θ is 70°. This arrangement further increases the air outlet angle of the indoor unit of the air conditioner.

[0168] Furthermore, in some embodiments of the present invention, such as Figure 12 As shown, the angle θ between the tangent at the front edge of the windward side of the curved plate and the vertical reference plane is greater than 50°. Preferably, the angle θ between the tangent at the front edge of the windward side of the curved plate and the vertical reference plane is 70°.

[0169] In some embodiments of the present invention, each air outlet has an air inlet 16 communicating with a connecting port on its side wall. Each air outlet is equipped with a fan that guides air into the air outlet and blows it out from the connecting port. The fan is a cross-flow fan 14. At least one air outlet is equipped with a heat exchanger 15. When one of the two air outlets blows heat exchange airflow, the heat exchange airflow, non-heat exchange airflow, and air within the induced draft interval 20 mix in front of the vertical air conditioner indoor unit, resulting in a mixed airflow temperature closer to room temperature and thus a gentler airflow. When both air outlets blow heat exchange airflow, the heat exchange airflow and air within the induced draft interval 20 mix in front of the vertical air conditioner indoor unit, similarly resulting in a gentler airflow.

[0170] In some embodiments of the present invention, the air conditioner has multiple air outlet modes. For example... Figure 4 As shown, the air guide device 12 closes the first air outlet 11. Air passing through the connecting port enters the bypass ventilation duct via the air inlet structure 19 and is then blown out from the second air outlet 17 via the air outlet structure 18. This airflow mode can be called a gentle breeze mode. Figure 6 As shown, the air guide device 12 extends in the front-to-back direction. At this time, the opening area of ​​the first air outlet 11 is at its maximum. The air outlets 11 of the two first air outlets drive the air within the air-guiding interval 20 to flow forward, resulting in the maximum air volume. This air outlet mode can be called the maximum air volume mode. Figure 7 As shown, the two first air outlets 11 direct airflow towards each other. The airflow from the two first air outlets 11 drives the air within the air intake interval 20 to flow forward, resulting in a greater wind speed after mixing, which helps to deliver air over long distances. This air delivery mode can be called a long-distance air delivery mode. Figure 8As shown, both air guide plates of the air guiding device 12 are inclined towards the air guiding body 30, and the air outlets of the two first air outlets 11 are directed away from each other, so that the air outlets of the two first air outlets 11 are mainly directed to the sides. This air outlet mode can be called a wide-angle wraparound air mode. Figure 9 As shown, the air guide plate near the second edge of the two air guide plates of the air guide device 12 extends back and forth, and the air guide plate near the air guide body 30 forms a wide-angle air duct with the first air guide surface 32, so that the air outlet angle through the first air outlet 11 is relatively large. This air outlet mode can be called wide-angle air supply mode (also called: wide-area uniform airflow mode). Figure 5 As shown, one of the air guide devices is closed, while the other guides the air; this air supply mode can be called a single-stage air supply mode. Of course, within these air supply modes, users can also choose to control both heat exchangers to work simultaneously or only one heat exchanger to work, depending on their needs.

[0171] 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 of an air conditioner, characterized by, The control method comprises the following steps: obtaining the indoor environment temperature in response to the start of the compressor; obtaining the time required for the indoor environment temperature to reach the first target temperature, and obtaining the first time; obtaining the frequency of the compressor in response to the indoor environment temperature reaching the first target temperature, and obtaining the first frequency; controlling the compressor to operate at a second frequency according to the first time and the first frequency, wherein the second frequency is less than the first frequency; the second frequency is the product of the first frequency and a first preset coefficient, and the first preset coefficient is less than 1; the first preset coefficient is positively correlated with the first time; the control of the compressor to operate at the second frequency according to the first time and the first frequency comprises the following steps: if the first time is less than or equal to a first time threshold, the first preset coefficient is assigned as a first coefficient; if the first time is less than or equal to a second time threshold and greater than the first time threshold, the first preset coefficient is assigned as a second coefficient; if the first time is greater than the second time threshold, the first preset coefficient is assigned as a third coefficient; wherein the third coefficient > the second coefficient > the first coefficient.

2. The control method according to claim 1, wherein the control method further comprises the following steps: obtaining the set temperature of the air conditioner and a first temperature compensation value in response to the start of the compressor, wherein the first temperature compensation value is a positive value; and determining the first target temperature according to the set temperature and the first temperature compensation value; when the air conditioner operates in cooling mode: the first target temperature is the sum of the set temperature and the first temperature compensation value; and the indoor environment temperature reaching the first target temperature comprises the indoor environment temperature being less than or equal to the first target temperature; when the air conditioner operates in heating mode: the first target temperature is the difference between the set temperature and the first temperature compensation value; and the indoor environment temperature reaching the first target temperature comprises the indoor environment temperature being greater than or equal to the first target temperature.

3. The control method according to claim 1, characterized by, The control method further comprises the following steps: judging whether the current indoor environment temperature reaches a second target temperature in response to the compressor operating at the second frequency for a second time; if yes, controlling the compressor to reduce the frequency; if no, controlling the compressor to continue operating at the second frequency.

4. The control method according to claim 3, wherein the control of the compressor to reduce the frequency comprises the following step: controlling the compressor to reduce the frequency according to a coefficient setting program; the control of the compressor to reduce the frequency according to the coefficient setting program comprises the following step: controlling the compressor to operate at a third frequency, wherein the third frequency is the product of the second frequency and a second preset coefficient, and the second preset coefficient is less than 1.

5. The control method according to claim 3, wherein when the air conditioner operates in cooling mode: the second target temperature is less than or equal to the first target temperature; and the judgment of whether the current indoor environment temperature reaches the second target temperature comprises the following step: judging whether the indoor environment temperature is less than the second target temperature. When the air conditioner is in heating operation: the second target temperature is greater than or equal to the first target temperature; the judging whether the current indoor environment temperature reaches the second target temperature comprises: judging whether the indoor environment temperature is greater than the second target temperature.

6. The control method of claim 3, wherein the control method further comprises: when the indoor environment temperature satisfies a preset condition, controlling the compressor to operate according to a room temperature PID frequency; and the controlling the compressor to operate according to the room temperature PID frequency comprises: obtaining a set temperature and a real-time indoor environment temperature, calculating a difference between the set temperature and the real-time indoor environment temperature, performing a PID operation according to the difference to obtain the room temperature PID frequency, and controlling the compressor to execute the room temperature PID frequency. The control method further comprises: when the compressor is reduced to a minimum frequency, and a running time according to the minimum frequency is greater than or equal to a preset time, then controlling the compressor to stop. The control method of the air conditioner further comprises: when the compressor is reduced to a minimum frequency, and a running time according to the minimum frequency is greater than or equal to a preset time, then controlling the compressor to stop. The control device comprises a memory and a processor, the memory stores a control program, and the control program is executed by the processor to implement the control method of the air conditioner according to any one of claims 1 to 6. ​ ​ 7. An air conditioner characterized by comprising: ​

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