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: obtaining the indoor environment temperature to obtain the first temperature; in response to the first temperature satisfying the first preset condition, obtaining the frequency of the compressor to obtain the first frequency, and calculating the frequency difference between the first frequency and the minimum frequency of the compressor; controlling the compressor to operate according to the first frequency, and controlling the first air outlet and / or the second air outlet to blow heat exchange air according to the frequency difference. The present application can achieve the purpose of keeping the air conditioner running while reaching the temperature, not only avoiding the frequent start and stop of the compressor, but also avoiding the problem of loud noise caused by the discontinuity of the sound emitted by the air conditioner, improving the service life of the compressor and the reliability and safety of the air conditioner, reducing the indoor environment temperature fluctuation, avoiding the indoor environment temperature from being cold and hot alternately, and improving the user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air treatment equipment, in particular to an air conditioner and a control method thereof. BACKGROUND

[0002] At present, with the rapid development of society and the continuous improvement of people's living standards, people's requirements for the quality of life are also getting higher and higher. Air conditioners, as important electrical appliances, have gradually entered thousands of households and are used by everyone. The existing air conditioner will stop the compressor when the temperature in the room reaches the user's set temperature, that is, the temperature stop machine. When the temperature in the room exceeds the set temperature, the machine is restarted and runs again. Therefore, the existing air conditioner has the problem of frequent temperature stop machine, which will cause the temperature in the room to fluctuate greatly, the noise to be large, and the service life of the compressor to be seriously affected, thereby greatly reducing the reliability and safety of the air conditioner and the user's use experience. SUMMARY

[0003] In view of the above problems, the present application is proposed in order to provide an air conditioner and a control method thereof which overcome the above problems or at least partially solve the above problems, aiming to solve the problem of frequent temperature stop machine of the existing air conditioner, so as to improve the user's use experience.

[0004] In one aspect, the present application provides a control method of an air conditioner, the air conditioner comprising two side-by-side air outlets, the two air outlets being a first air outlet and a second air outlet respectively;

[0005] The control method of the air conditioner comprises:

[0006] obtaining an indoor environment temperature to obtain a first temperature;

[0007] in response to the first temperature satisfying a first preset condition, obtaining a frequency of a compressor to obtain a first frequency, and calculating a frequency difference between the first frequency and a minimum frequency of the compressor;

[0008] controlling the compressor to operate at the first frequency, and controlling the first air outlet and / or the second air outlet to output heat exchange air according to the frequency difference.

[0009] Optionally, the controlling the first air outlet and / or the second air outlet to output heat exchange air according to the frequency difference comprises: if the frequency difference is greater than or equal to a preset value, controlling the first air outlet and the second air outlet to output heat exchange air at the same time; and if the frequency difference is less than the preset value, controlling the first air outlet or the second air outlet to output heat exchange air.

[0010] The control method further comprises: when controlling the first air outlet or the second air outlet to output heat exchange air, controlling the other air outlet to output non-heat exchange air or no air.

[0011] Optionally, the first preset condition comprises:

[0012] The absolute value of the difference between the first temperature and the set temperature of the air conditioner is less than a preset difference, and the duration that the absolute value is less than the preset difference is greater than or equal to a first preset time, and the preset difference is a positive value.

[0013] Optionally, the control method further comprises:

[0014] In response to the starting of the compressor, the indoor environment temperature is obtained to obtain a second temperature;

[0015] The absolute value of the difference between the second temperature and the set temperature of the air conditioner is calculated and recorded as a temperature difference;

[0016] The temperature difference and an outer ring temperature limit frequency are used to control the compressor to operate at a second frequency.

[0017] Optionally, the control method further comprises:

[0018] In response to the operation of the compressor at the second frequency, the indoor environment temperature is obtained to obtain a third temperature;

[0019] In response to the third temperature satisfying a second preset condition, the compressor is controlled to operate at a room temperature PID frequency;

[0020] In response to the first temperature satisfying a first preset condition, the compressor is controlled to exit the room temperature PID frequency operation and operate at the first frequency.

[0021] Optionally, the second preset condition comprises: the absolute value of the difference between the third temperature and the set temperature of the air conditioner is less than a preset difference, and the preset difference is a positive value.

[0022] The second frequency is a product of the outer ring temperature limit frequency and a first preset coefficient, the first preset coefficient is less than or equal to 1; if the temperature difference is greater than or equal to a first threshold value, the first preset coefficient is assigned as a first coefficient; if the temperature difference is greater than or equal to a second threshold value and less than the first threshold value, the first preset coefficient is assigned as a second coefficient; if the temperature difference is less than the second threshold value, the first preset coefficient is assigned as a third coefficient; wherein the first threshold value is greater than the second threshold value, the first coefficient > the second coefficient > the third coefficient, and the first coefficient is equal to 1.

[0023] Optionally, the control method further comprises:

[0024] acquiring an indoor environment temperature to obtain a fourth temperature in response to that the compressor runs at the first frequency for a second preset time;

[0025] judging whether the fourth temperature meets a third preset condition;

[0026] if yes, controlling a running frequency of the compressor according to a preset control strategy;

[0027] if no, controlling the compressor to reduce frequency.

[0028] Optionally, the third preset condition comprises: when the air conditioner runs in cooling mode, the fourth temperature is greater than a difference between a set temperature of the air conditioner and a temperature compensation value; when the air conditioner runs in heating mode, the fourth temperature is less than a sum of the set temperature of the air conditioner and the temperature compensation value; wherein the temperature compensation value is a positive value.

[0029] the preset control strategy comprises: if an absolute value of a difference between the fourth temperature and the set temperature of the air conditioner is less than or equal to the temperature compensation value within a continuous third preset time, controlling the compressor to continue running at the first frequency; acquiring an indoor environment temperature to obtain a fifth temperature; if the fifth temperature meets a fourth preset condition, controlling the compressor to run at a room temperature PID frequency.

[0030] the fourth preset condition comprises: when the compressor runs in cooling mode, the fifth temperature is greater than a sum of the set temperature of the air conditioner and the temperature compensation value; when the compressor runs in heating mode, the fifth temperature is less than a difference between the set temperature of the air conditioner and the temperature compensation value.

[0031] the control of the compressor to reduce frequency comprises:

[0032] controlling the compressor to reduce frequency according to a coefficient setting program;

[0033] when the compressor reduces frequency to a minimum frequency, and a running time of the compressor at the minimum frequency is greater than or equal to a fourth preset time, controlling the compressor to stop running;

[0034] when the compressor reduces frequency to the minimum frequency, acquiring an indoor environment temperature to obtain a sixth temperature; if the sixth temperature meets a fifth preset condition, and the running time of the compressor at the minimum frequency is less than the fourth preset time, re-calculating the running time of the compressor at the minimum frequency;

[0035] the fifth preset condition comprises: when the air conditioner runs in cooling mode, the sixth temperature is greater than a difference between the set temperature of the air conditioner and the temperature compensation value; when the air conditioner runs in heating mode, the sixth temperature is less than a difference between the set temperature of the air conditioner and the temperature compensation value.

[0036] Optionally, each air outlet portion comprises a first air outlet, an air duct, a heat exchanger and a fan; the first air outlet is formed on the front side of the air outlet portion, the air duct is in communication with the first air outlet, and the heat exchanger and the fan are arranged in the air duct;

[0037] The air conditioner further comprises a flow path control device configured to control the two heat exchangers to work simultaneously or only one of the heat exchangers to work;

[0038] Each air outlet portion further comprises a second air outlet and a bypass air duct; the second air outlet is formed on the front side of the air outlet portion, and the second air outlet is located on the side of the first air outlet away from the other air outlet portion, and the bypass air duct is in communication with the second air outlet and the air duct;

[0039] The first air outlet and the second air outlet both extend along the length direction of the air outlet portion;

[0040] Each air outlet portion has a first air guide surface connected to the edge of the corresponding first air outlet away from the other air outlet portion;

[0041] The air conditioner further comprises two air guide devices, each air guide device comprising at least one air guide plate arranged at the corresponding first air outlet for guiding air out in the width direction of the first air outlet and movable to a wide-angle air guide position defining a wide-angle air duct with the first air guide surface;

[0042] When the air guide plate is moved to the wide-angle air guide position, the edge of the air guide plate closest to the second air outlet is located on the front side of the first air guide surface;

[0043] The control method further comprises: obtaining a user-selected air supply mode; and if a wide-angle air supply mode instruction sent by the user is received, controlling the first air outlet portion and / or the second air outlet portion to operate in the wide-angle air supply mode;

[0044] The wide-angle air supply mode comprises: controlling the air guide plate of the first air outlet portion and / or the second air outlet portion to move to the wide-angle air guide position.

[0045] The application further provides an air conditioner comprising a control device, wherein 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 the above.

[0046] In the control method of the application, since the air conditioner comprises two air outlets, when the indoor environment temperature meets the first preset condition, the compressor is controlled to operate at the current frequency, and the operation of the two air outlets or one of the air outlets of the air conditioner is adjusted according to the frequency difference between the current frequency of the compressor and the minimum frequency of the compressor, so that the two air outlets can be controlled to output heat exchange air individually or simultaneously, thereby meeting the use requirements of different users. In addition, the air conditioner can achieve the purpose of keeping running when reaching the temperature, thereby avoiding frequent start and stop of the compressor, avoiding the problem of large noise caused by discontinuity of the sound emitted by the air conditioner, prolonging the service life of the compressor, improving the reliability and safety of the air conditioner, reducing the fluctuation of the indoor environment temperature, avoiding the problem of hot and cold indoor environment temperature, and improving the user experience.

[0047] Therefore, the above and other objects, advantages and features of the application will become more apparent from the following detailed description of some embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0048] Some specific embodiments of the application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0049] Figure 1 is a schematic flow chart of a control method of an air conditioner according to an embodiment of the application;

[0050] Figure 2 is a schematic front view of an air conditioner according to an embodiment of the application;

[0051] Figure 3 is a schematic view of an air conditioning system according to an embodiment of the application;

[0052] Figure 4 is a cross-sectional view of an air conditioner according to an embodiment of the application;

[0053] Figure 5 is a cross-sectional view of an air conditioner according to an embodiment of the application;

[0054] Figure 6 is a cross-sectional view of an air conditioner according to an embodiment of the application;

[0055] Figure 7 is a cross-sectional view of an air conditioner according to an embodiment of the application;

[0056] Figure 8 is a cross-sectional view of an air conditioner according to an embodiment of the application;

[0057] Figure 9 is a cross-sectional view of an air conditioner according to an embodiment of the present application;

[0058] Figure 10 is a cross-sectional view of an air conditioner according to an embodiment of the present application;

[0059] Figure 11 is a cross-sectional view of an air conditioner according to an embodiment of the present application;

[0060] Figure 12 is a cross-sectional view of an air conditioner according to an embodiment of the present application. DETAILED DESCRIPTION

[0061] In the description of the embodiments, the description of the terms "one embodiment", "some embodiments”, "exemplary embodiment”, "example”, "specific example”, or "some examples” etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or examples.

[0062] Figure 1 is a schematic flow chart of a control method of an air conditioner according to an embodiment of the present application, and is combined with Figures 2-12 The present application provides a control method of an air conditioner, the air conditioner comprising two side-by-side air outlet parts 10, the two air outlet parts being a first air outlet part and a second air outlet part respectively.

[0063] The control method comprises the following steps: step S11, obtaining an indoor environment temperature to obtain a first temperature; step S12, in response to the first temperature satisfying a first preset condition, obtaining a frequency of a compressor to obtain a first frequency, and calculating a frequency difference between the first frequency and a minimum frequency of the compressor; step S13, controlling the compressor to operate at the first frequency, and controlling the first air outlet part and / or the second air outlet part to output heat exchange air according to the frequency difference.

[0064] Specifically, the frequency difference = the first frequency - the minimum frequency. "In response to the first temperature satisfying the first preset condition” means when the first temperature satisfies the first preset condition. "Controlling the first air outlet part and / or the second air outlet part to output heat exchange air according to the frequency difference” includes the following three cases: ① controlling the first air outlet part to output heat exchange air according to the frequency difference; ② controlling the second air outlet part to output heat exchange air according to the frequency difference; ③ controlling the first air outlet part and the second air outlet part to output heat exchange air according to the frequency difference.

[0065] In the embodiment, when the indoor environment temperature meets the first preset condition, it indicates that the indoor environment temperature is in a relatively stable range or value, the current frequency of the compressor is obtained, and the first frequency is obtained. Then, the compressor is controlled to operate according to the first frequency, and the first air outlet and / or the second air outlet are controlled to output the heat exchange air according to the frequency difference between the first frequency and the minimum frequency of the compressor.

[0066] Therefore, compared with the prior art, in which the operation of a single air outlet of an air conditioner is adjusted according to the set temperature of the air conditioner and the indoor environment temperature, in the present application, since the air conditioner comprises two air outlets, when the indoor environment temperature meets the first preset condition, the compressor is controlled to operate according to the current frequency, and the operation of the two air outlets or one of the air outlets of the air conditioner is adjusted according to the frequency difference between the current frequency of the compressor and the minimum frequency of the compressor, so that the two air outlets can be controlled to output the heat exchange air individually or simultaneously, and the use requirements of different users can be met. In addition, the present application can achieve the purpose of keeping the air conditioner running when the temperature reaches, which not only avoids the frequent start and stop of the compressor, but also avoids the problem of loud noise caused by the discontinuity of the sound emitted by the air conditioner, improves the service life of the compressor and the reliability and safety of the air conditioner, reduces the fluctuation of the indoor environment temperature, avoids the hot and cold indoor environment temperature, and improves the user experience.

[0067] In addition, the control method of the present application has the beneficial effects of simple control program and easy execution.

[0068] In some optional embodiments of the present application, each air outlet comprises a first air outlet 11, an air duct and a heat exchanger 15. The first air outlet 11 is arranged on the front side of the air outlet, the air duct is in communication with the first air outlet, and the heat exchanger 15 is arranged in the air duct. The air conditioner further comprises a flow path control device configured to control the two heat exchangers to work simultaneously or only one of the heat exchangers to work. When any air outlet does not output air, the corresponding heat exchanger does not work. The heat exchanger in the first air outlet is a first heat exchanger, and the heat exchanger in the second air outlet is a second heat exchanger.

[0069] In the embodiment, since each air outlet comprises a heat exchanger, the two air outlets can output the heat exchange air individually or simultaneously. In some alternative embodiments of the present application, the two air outlets share one heat exchanger.

[0070] Further, each air outlet further comprises a fan.

[0071] In some optional embodiments of the present application, the first preset condition comprises that the absolute value of the difference between the first temperature and the set temperature of the air conditioner is less than a preset difference value, and the duration is greater than or equal to a first preset time, and the preset difference value is a positive value.

[0072] Specifically, the first preset condition is that |the first temperature-set temperature|<a preset difference value, and the duration is greater than or equal to a first preset time. That is, the first preset condition is that set temperature-preset difference value<first temperature<set temperature+ preset difference value, and the duration is greater than or equal to the first preset time.

[0073] Preferably, the preset difference value is 1-3℃, for example, the preset value is 1℃, 1.2℃, 1.3℃, 1.4℃, 1.5℃, 1.6℃, 1.7℃, 1.8℃, 1.9℃, 2℃ or 3℃. Further preferably, the preset difference value is 1.5℃.

[0074] Preferably, the first preset time is 30-90S, for example, the first preset time is 30S, 40S, 50S, 60S, 70S, 80S or 90S; further preferably, the first preset time is 60S.

[0075] In some optional embodiments of the present application, the control of the first air outlet and / or the second air outlet to output the heat exchange air according to the frequency difference value comprises: if the frequency difference value is greater than or equal to a preset value, controlling the first air outlet and the second air outlet to output the heat exchange air at the same time; and if the frequency difference value is less than the preset value, controlling the first air outlet or the second air outlet to output the heat exchange air.

[0076] In the running process of the air conditioner, when the indoor environment temperature meets the first preset condition, if the frequency difference value between the first frequency and the lowest frequency is greater than or equal to a preset value, it indicates that the current frequency of the compressor is relatively large, that is, the compressor makes the indoor environment temperature meet the first preset condition at a relatively large frequency, that is, the compressor makes the indoor environment temperature be in a relatively stable range or value at a relatively large frequency, at this time, controlling the two air outlets to output the heat exchange air at the same time can make the indoor environment temperature maintain around the set temperature of the air conditioner as much as possible.

[0077] In the running process of the air conditioner, when the indoor environment temperature meets the first preset condition, if the frequency difference value between the first frequency and the lowest frequency is less than the preset value, it indicates that the current frequency of the compressor is relatively small, that is, the compressor makes the indoor environment meet the first preset condition at a relatively small frequency, that is, the compressor makes the indoor environment temperature be in a relatively stable range or value at a relatively small frequency, at this time, controlling one air outlet to output the heat exchange air and the other air outlet not to output the heat exchange air can reduce the heat exchange efficiency (cooling or heating efficiency) of the air conditioner, so as to make the indoor environment temperature maintain around the set temperature of the air conditioner as much as possible, and achieve the purpose of temperature reaching without stopping.

[0078] Preferably, the preset value is 2-4, for example, the preset value is 2, 3 or 4; further preferably, the preset value is 3.

[0079] In some alternative embodiments of the present application, the control method further comprises: when the first air outlet or the second air outlet is controlled to output the heat exchange air, the other air outlet is controlled to output the non-heat exchange air or no air.

[0080] In some alternative embodiments of the present application, when the air conditioner is in cooling operation, when the first air outlet or the second air outlet is controlled to output the heat exchange air, the other air outlet is controlled to output the non-heat exchange air.

[0081] Specifically, when the air conditioner is in cooling operation, the flow path control device is controlled to operate the heat exchanger of one air outlet and not operate the heat exchanger of the other air outlet, and the fan of the air outlet with the operating heat exchanger is controlled to continue rotating and the fan of the air outlet with the non-operating heat exchanger is controlled to stop rotating, so as to reduce the cooling efficiency of the air conditioner, maintain the indoor environment temperature around the set temperature, and achieve the purpose of not stopping the air conditioner when the temperature reaches the set temperature.

[0082] In some alternative embodiments of the present application, when the air conditioner is in cooling operation, when the first air outlet or the second air outlet is controlled to output the heat exchange air, the other air outlet is controlled to output no air.

[0083] Specifically, when the air conditioner is in cooling operation, the flow path control device is controlled to operate the heat exchanger of one air outlet and not operate the heat exchanger of the other air outlet, and the fan of the air outlet with the operating heat exchanger is controlled to continue rotating and the fan of the air outlet with the non-operating heat exchanger is controlled to stop rotating, so as to reduce the cooling efficiency of the air conditioner, maintain the indoor environment temperature around the set temperature, and achieve the purpose of not stopping the air conditioner when the temperature reaches the set temperature.

[0084] In some alternative embodiments of the present application, when the air conditioner is in heating operation, when the first air outlet or the second air outlet is controlled to output the heat exchange air, the other air outlet is controlled to output no air.

[0085] Specifically, the flow path control device is controlled to operate the heat exchanger of one air outlet and not operate the heat exchanger of the other air outlet, and the corresponding fan is controlled to continue rotating and the other fan is controlled to stop rotating. In this embodiment, the fan corresponding to the non-operating heat exchanger is closed, which can prevent the refrigerant in the non-operating heat exchanger from being liquefied.

[0086] In some alternative embodiments of the present application, the control method further comprises: in response to the start of the compressor, acquiring the indoor environment temperature to obtain a second temperature; calculating the absolute value of the difference between the second temperature and the set temperature of the air conditioner, denoted as a temperature difference; and controlling the compressor to operate at a second frequency according to the temperature difference and the outer ring temperature limit frequency.

[0087] Specifically, the "in response to the compressor starting" refers to when the compressor starts to start. The outer ring temperature limit frequency is obtained through experiments and is known to those skilled in the art; specifically, the outer ring temperature limit frequency is: the limit frequency range in which the compressor runs at the current outdoor environment temperature. The method of obtaining the outer ring temperature limit frequency is: obtaining the outdoor environment temperature, and determining the running frequency range corresponding to the outdoor environment temperature. For example: the maximum frequency value in the running frequency range can be taken as the preset initial running frequency.

[0088] In the embodiment, when the compressor starts to start, the compressor is controlled to run at the second frequency according to the temperature difference value and the outer ring temperature limit frequency. That is, the actual initial running frequency of the compressor is controlled according to the absolute value of the difference between the current indoor environment temperature and the set temperature of the air conditioner and the outer ring temperature limit frequency.

[0089] When the compressor starts to start, the greater the absolute value of the difference between the current indoor environment temperature and the set temperature of the air conditioner, the greater the heat exchange efficiency required by the air conditioner to make the indoor environment temperature reach the vicinity of the set temperature, at which time a relatively large compressor frequency needs to be selected; if the compressor frequency is too low, it is easy to cause the indoor environment temperature to take a long time to reach the vicinity of the set temperature, thereby reducing the user experience.

[0090] When the compressor starts to start, the smaller the absolute value of the difference between the current indoor environment and the set temperature of the air conditioner, the smaller the heat exchange efficiency required by the air conditioner to make the indoor environment temperature reach the vicinity of the set temperature, at which time only a relatively small compressor frequency needs to be selected.

[0091] Therefore, in the embodiment, through the above setting, the energy can be saved under the premise of guaranteeing the user experience.

[0092] Further, in some optional embodiments of the application, the control of the compressor to execute the second frequency according to the temperature difference value and the outer ring temperature limit frequency comprises: the second frequency is the product of the outer ring temperature limit frequency and a first preset coefficient, and the first preset coefficient is less than or equal to 1.

[0093] Further preferably, in some optional embodiments of the application, if the temperature difference value is greater than or equal to a first threshold value, the first preset coefficient is assigned a first coefficient; if the temperature difference value is greater than or equal to a second threshold value and less than the first threshold value, the first preset coefficient is assigned a second coefficient; if the temperature difference value is less than the second threshold value, the first preset coefficient is assigned a third coefficient; wherein the first threshold value is greater than the second threshold value, the first coefficient > the second coefficient > the third coefficient, and the first coefficient is equal to 1.

[0094] For example, the first threshold is 3℃, the second threshold is 1℃, the second coefficient is 0.75, and the third coefficient is 0.50.

[0095] In some optional embodiments of the present application, the control method further comprises: obtaining a third temperature by obtaining the indoor environment temperature in response to the compressor operating at the second frequency; controlling the compressor to operate at the room temperature PID frequency in response to the third temperature satisfying a second preset condition; and controlling the compressor to exit the room temperature PID frequency operation and operate at the first frequency in response to the first temperature satisfying a first preset condition.

[0096] Specifically, a third temperature is obtained by obtaining the indoor environment temperature when the compressor operates at the second frequency. When the third temperature satisfies a second preset condition during the operation of the compressor at the second frequency, the compressor is controlled to operate at the room temperature PID frequency. A first temperature is obtained by obtaining the indoor environment temperature when the compressor operates at the room temperature PID frequency. When the first temperature satisfies a first preset condition, the room temperature PID frequency operation is exited, and the compressor is controlled to operate at the first frequency.

[0097] The control of the compressor to operate at 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 a room temperature PID frequency, and controlling the compressor to execute the room temperature PID frequency.

[0098] Further, in some optional embodiments of the present application, the second preset condition comprises: an absolute value of a difference between the third temperature and a set temperature of the air conditioner is less than a preset difference value (i.e., | third temperature - set temperature | < preset difference value), and the preset difference value is a positive value.

[0099] In some optional embodiments of the present application, the control method further comprises: obtaining a fourth temperature by obtaining the indoor environment temperature in response to the compressor operating at the first frequency for a second preset time; determining whether the fourth temperature satisfies a third preset condition; if yes, controlling the operating frequency of the compressor according to a preset control strategy; and if no, controlling the compressor to reduce the frequency.

[0100] Specifically, when the compressor operates at the first frequency for a second preset time, if the indoor environment temperature does not satisfy the third preset condition, it indicates that the current heat exchange efficiency of the air conditioner is still relatively large. At this time, the compressor needs to be reduced in frequency to further reduce the heat exchange efficiency of the air conditioner, so as to further improve the user experience.

[0101] In some optional embodiments of the present application, when the air conditioner is in cooling operation, the third preset condition comprises that the fourth temperature is greater than the difference between the set temperature of the air conditioner and the temperature compensation value; wherein the temperature compensation value is a positive value.

[0102] In some optional embodiments of the present application, when the air conditioner is in heating operation, the third preset condition comprises that the fourth temperature is less than the sum of the set temperature of the air conditioner and the temperature compensation value; wherein the temperature compensation value is a positive value.

[0103] In some optional embodiments of the present application, the preset control strategy comprises: within a continuous third preset time, if the absolute value of the difference between the fourth temperature and the set temperature of the air conditioner is less than or equal to the temperature compensation value (i.e., if | fourth temperature - set temperature | ≤ temperature compensation value), the compressor is controlled to continue operating at the first frequency; the indoor environment temperature is obtained to obtain a fifth temperature, and when the fifth temperature satisfies a fourth preset condition, the compressor is controlled to operate at a room temperature PID frequency.

[0104] When the compressor is in cooling operation, the fourth preset condition comprises that the fifth temperature is greater than the sum of the set temperature of the air conditioner and the temperature compensation value (i.e., fifth temperature > set temperature + temperature compensation value)

[0105] When the compressor is in heating operation, the fourth preset condition comprises that the fifth temperature is less than the difference between the set temperature of the air conditioner and the temperature compensation value (i.e., fifth temperature < set temperature - temperature compensation value)

[0106] In some optional embodiments of the present application, the control of the compressor to reduce the frequency comprises: controlling the compressor to reduce the frequency according to a coefficient setting program.

[0107] Further, the control of the compressor to reduce the frequency according to the coefficient setting program comprises: controlling the compressor to operate at a third frequency, and the third frequency is the product of the first frequency and a second preset coefficient, and the second preset coefficient is less than 1.

[0108] Preferably, when the air conditioner is in cooling operation, the second preset coefficient is negatively correlated with the real-time indoor environment temperature. That is, when the air conditioner is in cooling operation, the lower the real-time indoor environment temperature, the greater the second preset coefficient.

[0109] When the air conditioner is in heating operation, the second preset coefficient is positively correlated with the real-time indoor environment temperature. That is, when the air conditioner is in heating operation, the higher the real-time indoor environment temperature, the smaller the second preset coefficient.

[0110] Further, in some optional embodiments of the present application, the control method further comprises: during the frequency reduction process, when the compressor is reduced to the lowest frequency, and the operating time of the compressor at the lowest frequency is greater than or equal to a fourth preset time, the compressor is controlled to stop.

[0111] When the compressor is reduced to the minimum frequency, the indoor environment temperature is obtained to obtain a sixth temperature; if the sixth temperature satisfies the fifth preset condition, the running time of the compressor at the minimum frequency is less than the fourth preset time, and the running time of the compressor at the minimum frequency is recalculated.

[0112] Further, when the air conditioner is in cooling operation, the fifth preset condition comprises that the sixth temperature is greater than the difference between the set temperature of the air conditioner and the temperature compensation value (i.e., the sixth temperature > the set temperature - the temperature compensation value).

[0113] When the air conditioner is in heating operation, the fifth preset condition comprises that the sixth temperature is less than the difference between the set temperature of the air conditioner and the temperature compensation value (i.e., the sixth temperature < the set temperature - the temperature compensation value).

[0114] In some preferred embodiments of the present application, the control method of the air conditioner comprises the following steps: step S21, when the air conditioner is started, the user self-selected air supply mode is obtained; step S22, if a one-key constant temperature mode instruction sent by the user is received, the heat exchange mode of the air conditioner is obtained; step S23, if the air conditioner is in cooling mode, the first control method is executed; if the air conditioner is in heating mode, the second control method is executed.

[0115] The first control method comprises the following steps:

[0116] Step S2311, in response to the start of the compressor, the indoor environment temperature is obtained to obtain a second temperature.

[0117] Step S2312, the absolute value of the difference between the second temperature and the set temperature of the air conditioner is calculated, and is recorded as a temperature difference.

[0118] Step S2313, the compressor is controlled to operate at a second frequency according to the temperature difference and the outer ring temperature limit frequency: if the temperature difference ≥ a first threshold value, the second frequency = the outer ring temperature limit frequency * a first coefficient; if a second threshold value ≤ the temperature difference < the first threshold value, the second frequency = the outer ring temperature limit frequency * a second coefficient; if the temperature difference < the second threshold value, the second frequency = the outer ring temperature limit frequency * a third coefficient; wherein 1 ≥ the first coefficient > the second coefficient > the third coefficient, and the outer ring temperature limit frequency is a cooling outer ring temperature limit frequency.

[0119] Step S2314, the indoor environment temperature is obtained to obtain a third temperature.

[0120] Step S2315, when the third temperature satisfies a second preset condition, the compressor is controlled to operate at a room temperature PID frequency.

[0121] Step S2316, the indoor environment temperature is obtained to obtain a first temperature.

[0122] Step S2317, in response to the first temperature satisfying the first preset condition, the frequency of the compressor is obtained, to obtain a first frequency, and the frequency difference between the first frequency and the minimum frequency of the compressor is calculated.

[0123] Step S2318, the compressor is controlled to exit the room temperature PID frequency operation, and the compressor is controlled to operate according to the first frequency, and the first air outlet and / or the second air outlet are controlled to output heat exchange air according to the frequency difference: if the frequency difference≥the preset value, the first air outlet and the second air outlet are controlled to output heat exchange air at the same time; if the frequency difference<the preset value, one air outlet outputs heat exchange air, and the other air outlet outputs non-heat exchange air.

[0124] Step S2319, when the compressor operates at the first frequency for a second preset time, the indoor environment temperature is obtained, to obtain a fourth temperature.

[0125] Step S23110, it is judged whether the fourth temperature>the set temperature-temperature compensation value is satisfied.

[0126] Step S23111, if yes, the operating frequency of the compressor is controlled according to the preset control strategy; if no, the compressor is controlled to reduce the frequency according to the coefficient setting program.

[0127] The preset control strategy includes: within a continuous third preset time, if |the fourth temperature-the set temperature|≤the temperature compensation value, the compressor is controlled to continue operating at the first frequency; the indoor environment temperature is obtained, to obtain a fifth temperature, when the fifth temperature>the set temperature+the temperature compensation value, the compressor is controlled to operate at the room temperature PID frequency.

[0128] In the process of reducing the frequency of the compressor, when the compressor is reduced to the minimum frequency, and the operating time of the compressor at the minimum frequency is greater than or equal to the fourth preset time, the compressor is controlled to stop.

[0129] When the compressor is reduced to the minimum frequency, the indoor environment temperature is obtained, to obtain a sixth temperature; if the sixth temperature>the set temperature-temperature compensation value, and the operating time of the compressor at the minimum frequency is less than the fourth preset time, the operating time of the compressor at the minimum frequency is recalculated.

[0130] The second control method includes the following steps:

[0131] Step S2321, in response to the start of the compressor, the indoor environment temperature is obtained, to obtain a second temperature.

[0132] Step S2322, the absolute value of the difference between the second temperature and the set temperature of the air conditioner is calculated, which is recorded as a temperature difference.

[0133] Step S2323, controlling the compressor to run at a second frequency according to the temperature difference and the outer ring temperature limiting frequency: if the temperature difference is greater than or equal to a first threshold, the second frequency is equal to the outer ring temperature limiting frequency multiplied by a first coefficient; if the second threshold is less than or equal to the temperature difference and less than the first threshold, the second frequency is equal to the outer ring temperature limiting frequency multiplied by a second coefficient; if the temperature difference is less than the second threshold, the second frequency is equal to the outer ring temperature limiting frequency multiplied by a third coefficient; wherein 1 is greater than the first coefficient, the first coefficient is greater than the second coefficient, the second coefficient is greater than the third coefficient, and the outer ring temperature limiting frequency is a heating outer ring temperature limiting frequency.

[0134] Step S2324, obtaining the indoor environment temperature to obtain a third temperature.

[0135] Step S2325, when the third temperature meets a second preset condition, controlling the compressor to run at a room temperature PID frequency.

[0136] Step S2326, obtaining the indoor environment temperature to obtain a first temperature.

[0137] Step S2327, in response to the first temperature meeting a first preset condition, obtaining a frequency of the compressor to obtain a first frequency, and calculating a frequency difference between the first frequency and a minimum frequency of the compressor.

[0138] Step S2328, controlling the compressor to exit the room temperature PID frequency and controlling the compressor to run at the first frequency, and controlling the first air outlet and / or the second air outlet to output heat exchange air according to the frequency difference: if the frequency difference is greater than or equal to a preset value, controlling the first air outlet and the second air outlet to output heat exchange air at the same time; if the frequency difference is less than the preset value, controlling one air outlet to output heat exchange air and the other air outlet not to output air. The preset value is 3.

[0139] Step S2329, when the compressor runs at the first frequency for a second preset time, obtaining the indoor environment temperature to obtain a fourth temperature.

[0140] Step S23210, determining whether the fourth temperature is less than a set temperature plus a temperature compensation value.

[0141] Step S23211, if yes, controlling the running frequency of the compressor according to a preset control strategy; if no, controlling the compressor to reduce the frequency according to a coefficient setting program.

[0142] The preset control strategy includes: within a continuous third preset time, if |the fourth temperature-the set temperature| is less than or equal to the temperature compensation value, controlling the compressor to continue to run at the first frequency; obtaining the indoor environment temperature to obtain a fifth temperature, and when the fifth temperature is less than the set temperature minus the temperature compensation value, controlling the compressor to run at the room temperature PID frequency.

[0143] In the compressor frequency reduction process, when the compressor is reduced to the lowest frequency, and the running time of the compressor at the lowest frequency is greater than or equal to the fourth preset time, the compressor is controlled to stop.

[0144] When the compressor is reduced to the lowest frequency, the indoor environment temperature is obtained to obtain the sixth temperature; if the sixth temperature is less than the set temperature minus the temperature compensation value, and the running time of the compressor at the lowest frequency is less than the fourth preset time, the running time of the compressor at the lowest frequency is recalculated.

[0145] In some optional embodiments of the present application, each air outlet part 10 further comprises a second air outlet 17 and a bypass air duct; the second air outlet 17 is arranged on the front side of the air outlet part, and the second air outlet 17 is located on the side of the first air outlet 11 away from the other air outlet part 10, and the bypass air duct is connected between the second air outlet 17 and the air duct. The first air outlet 11 and the second air outlet 17 both extend along the length direction of the air outlet part.

[0146] Each air outlet part 10 has a first air guide surface connected to the edge of the corresponding first air outlet 11 away from the other air outlet part 10.

[0147] The air conditioner indoor unit further comprises two air guide devices 12, each air guide device 12 comprises at least one air guide plate arranged at the corresponding first air outlet 11 for guiding the air out of the first air outlet in the width direction of the first air outlet and movable to a wide-angle air guide position defining a wide-angle air duct with the first air guide surface. When the air guide plate is moved to the wide-angle air guide position, the edge of the air guide plate closest to the second air outlet is located on the front side of the first air guide surface.

[0148] In operation, the air guide device 12 on the air outlet part 10 rotates to guide the direction of the air blown out of the first air outlet 11. In particular, when the air guide device 12 is rotated to the wide-angle air guide position, at least a part of the air blown out of 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 away from the other air outlet part 10, thereby expanding the air outlet angle of the first air outlet 11, and further expanding the air outlet angle of the two air outlet parts 10, thereby meeting the user's demand for wide-angle air supply of the air conditioner.

[0149] In the present embodiment, the control of the heat exchange air of the first air outlet part and / or the second air outlet part comprises the following steps: obtaining the air supply mode selected by the user; if the wide-angle air supply mode instruction sent by the user is received, the first air outlet part and / or the second air outlet part is controlled to run in the wide-angle air supply mode.

[0150] The wide-angle air supply mode comprises: controlling the air guide plate of the first air outlet part and / or the second air outlet part to move to the wide-angle air guide position.

[0151] Figure 2is a schematic front view of an air conditioner according to an embodiment of the present application, referring to Figures 3 to 12 The present application also provides an air conditioner, which comprises a control device. The control device comprises a memory and a processor, and the memory stores a control program which is executed by the processor to implement the control method of the air conditioner according to any one of the above embodiments.

[0152] As shown in Figures 4-12 In some optional embodiments of the present application, the air conditioner comprises two air outlet portions 10, which are respectively a first air outlet portion and a second air outlet portion. Each air outlet portion 10 is provided with a plurality of air outlets on the front side. When the two air outlet portions are vertically arranged, the two air outlet portions 10 are symmetrically arranged about a vertical reference surface extending in front and back, and the two air outlet portions are respectively a first air outlet column and a second air outlet column. When the two air outlet portions are horizontally arranged, the two air outlet portions 10 are symmetrically arranged about a horizontal reference surface. The symmetrically arranged air outlet portions 10 make the air conditioner have a stable and dignified appearance, which accords with the aesthetic sense of Chinese people.

[0153] Further, in some embodiments of the present application, as shown in Figure 10 The two air outlet portions 10 are arranged at intervals to form an air guide interval 20 between the two air outlet portions 10. When the two air outlet portions 10 blow air forward, the air in the air guide interval 20 is driven to flow forward by the negative pressure, so that the air is mixed with the air blown by the two air outlet portions 10, thereby reducing the air temperature when cooling and avoiding too hard wind and achieving soft wind effect.

[0154] In some embodiments of the present application, each air outlet portion 10 comprises a first air outlet 11, an air duct and a heat exchanger. The air duct is in communication with the first air outlet 11, and the heat exchanger 15 is arranged in the air duct. The air conditioner further comprises a flow path control device configured to control the two heat exchangers to work simultaneously or only one of the heat exchangers to work, and when any air outlet portion does not blow air, the corresponding heat exchanger does not work.

[0155] In the embodiments, each first air outlet 11 can independently blow air, and the air conditioner can blow air through one first air outlet 11 or two first air outlets 11 simultaneously. When two first air outlets 11 blow air simultaneously, the air conditioner can have a larger air volume and a larger air blowing range. The flow path control device controls the working state of the heat exchanger 15 by controlling the opening and closing of the working medium flow path in the heat exchanger 15. The flow path control device can control two heat exchangers 15 to work simultaneously, and in this case, the two first air outlets 11 blow out heat exchange air simultaneously. The flow path control device can also control one of the two heat exchangers 15 to work, and in this case, when the two first air outlets 11 blow air simultaneously, the heat exchange air and the non-heat exchange air can be mixed or blown to the respective areas. Mixing the air can make the air temperature close to the room temperature, avoiding the discomfort caused by blowing the heat exchange air directly to the user. Blowing the heat exchange air and the non-heat exchange air to the respective areas can meet the different needs of users at different positions. The above arrangement makes the air conditioner have multiple air blowing modes, which can meet the more needs of users.

[0156] As shown in Figure 4 some embodiments of the present application, two heat exchangers 15 are arranged in parallel. The flow path control device includes a three-way valve 34. The three-way valve 34 includes three openings, namely a first opening, a second opening and a third opening. The first opening is connected with the four-way valve, and the second opening and the third opening are respectively connected with the two heat exchangers. By controlling the opening and closing of the first opening and the second opening of the three-way valve 34, the opening and closing of the working medium flow path in each heat exchanger is controlled, and the action is stable and reliable.

[0157] As shown in Figure 3 some embodiments of the present application, 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 medium entering the heat exchanger 15. The throttling device 33 generally includes a capillary, a mechanical expansion valve, an electronic expansion valve or an electromagnetic valve, and preferably, the throttling device 33 is an electromagnetic valve.

[0158] As shown in Figure 3 some embodiments of the present application, the air conditioner further includes a compressor 311, a condenser 36 and a four-way valve 35 connected between the electronic on-off valve 34 and the compressor 311 in series, and the throttling device is connected with the condenser 36. The compressor includes a liquid accumulator 312.

[0159] As shown in Figures 4-12 some embodiments of the present application, each air outlet 10 further includes a second air outlet 17 and a bypass air duct. The second air outlet 17 is arranged on the front side of the air outlet 10, and the second air outlet 17 is located on the side of the first air outlet 11 away from the other air outlet 10. The bypass air duct connects the second air outlet 17 with the air duct. The first air outlet 11 and the second air outlet 17 extend along the length direction of the air outlet 10.

[0160] As shown in Figure 10 some embodiments of the present application, each air outlet 10 has a first air guide surface 32 connected to the side edge of the corresponding first air outlet 11 away from the other air outlet 10. The air conditioner indoor unit further comprises two air guide devices 12, each of which is arranged at the corresponding first air outlet 11 for guiding the air out of the first air outlet 11 in the width direction of the first air outlet 11 and movable to a wide-angle air guide position to define a wide-angle air duct with the first air guide surface.

[0161] In operation, the air guide device 12 on the air outlet 10 is rotated to guide the direction of the air blown out of the first air outlet 11. In particular, as shown in Figure 10 when the air guide device 12 is rotated to the wide-angle air guide position, at least part of the air blown out of 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 away from the other air outlet 10, thereby expanding the air outlet angle of the first air outlet 11 and further increasing the air outlet angle of the two air outlets 10 to meet the user's demand for wide-angle air supply of the air conditioner.

[0162] As shown in Figures 4-12 some embodiments of the present application, each air outlet comprises an air outlet main body and an air guide body 30. The front side of the air outlet main body has a communication port extending along the length direction of the air outlet main body. The two length direction extending edges of the communication port are respectively a first edge and a second edge. The surface of the air outlet main body comprises an air guide area connected to the first edge. The edge of the air guide area opposite to the first edge is a third edge. The air guide body 30 is arranged at the front side of the air guide area. The air guide body 30 comprises a first air guide surface 32 arranged at the front side of the air guide body 30, the first air guide surface 32 has a fourth edge and a fifth edge, the fourth edge is close to the second edge, the fifth edge is close to the third edge, and the fifth edge is obliquely in front of the fourth edge. The bypass air duct is between the air guide body 30 and the air guide area. The interval between the second edge and the end of the air guide body 30 with the fourth edge is the first air outlet 11, and the interval between the third edge and the end of the air guide body 30 with the fifth edge is the second air outlet 17. The bypass air duct communicates the communication port and the second air outlet 17.

[0163] In these embodiments, by arranging the air outlet main body and the air guide body, two air outlets and the first air guide surface are realized on each air outlet, thereby achieving wide-angle air outlet of the air conditioner and novel modeling at the same time.

[0164] In some embodiments of the present application, as shown in Figure 4As shown, the second air outlet 17 is provided with an air outlet structure 18, which makes the air passing through the second air outlet 17 blow towards the front side of the second air outlet 17 close to the third edge. That is, the air entering the bypass air duct can also change the air outlet direction and expand the air outlet angle after passing through the air outlet structure 18.

[0165] In some embodiments of the present application, as shown in Figure 5 As shown, the air outlet structure 18 includes a plurality of arc-shaped plates, which are arranged in parallel and protrude towards the front of the first air outlet 11, so that the air passing through the arc-shaped plates blows towards the front side of the second air outlet 17 close to the third edge.

[0166] Of course, in other embodiments of the present application, the air outlet structure 18 makes the air passing through the second air outlet 17 blow towards the front of the second air outlet 17.

[0167] In some embodiments of the present application, as shown in Figure 10 As shown, the air inlet structure 19 is provided at the inlet of the bypass air duct to disperse the air passing through the inlet of the bypass air duct.

[0168] Further, in some embodiments of the present application, as shown in Figure 10 As shown, the air inlet structure 19 is a microporous plate, which is connected to the fourth edge and the first edge along the two edges in the length direction. A part of the air passing through the microporous plate is dispersed by the micropores to become a micro-wind, so that the air is more "soft".

[0169] In some embodiments of the present application, the micropores are arranged horizontally.

[0170] In some embodiments of the present application, as shown in Figure 10 As shown, the air guide body 30 further includes a second air guide surface 31 at the back side of the first air guide surface 32, which is an arc surface arched away from the bypass air duct. The second air guide surface 31 has a planar area connected to the fourth edge, and the end of the planar area away from the first edge is in the oblique front of the fourth edge. The fourth edge is at the front side of the inlet of the bypass air duct, that is, the second air guide surface is inclined to the oblique front from the front side edge of the inlet of the bypass air duct. The second air guide surface 31 can reduce the air resistance, so that the air entering the bypass air duct through the air inlet structure 19 can more easily blow out after passing through the air outlet structure 18.

[0171] In some embodiments of the present application, the air outlet structure 18, the air inlet structure 19 and the air guide body 30 are integrally formed.

[0172] In some embodiments of the present application, as shown in Figure 9As shown, the air guide device 12 includes at least one air guide plate. When the air guide device moves to the wide-angle air guide position, the edge of the air guide plate closest to the air guide body 30 is on the front side of the first air guide surface 32. This arrangement can form a wide-angle air channel between the air guide plate closest to the air guide body 30 and the first air guide surface 32. Preferably, the air guide device 12 includes two air guide plates. The two air guide plates are arranged along the width direction of the first air outlet 11.

[0173] In some embodiments of the present application, as shown in Figure 4 As shown, the air channel wall connected to the first edge at the first edge has a reference section. The air guide body is on the side of the reference section away from the first air outlet. This arrangement is conducive to wide-angle air guide and does not hinder the air outlet of the communication port.

[0174] In some embodiments of the present application, the air guide interval 20 only includes an air inlet section and an air outlet section connected to each other. The width of the air outlet section gradually increases along the flow direction of the air flow. The width of the air inlet section gradually decreases along the flow direction of the air flow. The above arrangement of the air guide interval 20 is conducive to the air on the rear side of the air guide interval 20 entering and the air in the air guide interval 20 flowing forward.

[0175] In some embodiments of the present application, as shown in Figure 4 As shown, the second edge is on the front side of the air outlet section.

[0176] In some embodiments of the present application, as shown in Figure 4 As shown, the first edge is on the front side of the second edge.

[0177] In some embodiments of the present application, as shown in Figure 4 As shown, the fourth edge is obliquely in front of the corresponding second edge.

[0178] As shown in Figure 11 In some embodiments of the present application, the ratio of the distance d from the second edge to the vertical plane extending in the transverse direction and located at the most front end of the air outlet part 10 to the maximum thickness D of the air outlet part 10 in the front-rear direction is less than 0.3. Preferably, in some embodiments, the ratio of the distance from the second edge to the vertical plane extending in the transverse direction and located at the most front end of the air outlet part 10 to the maximum thickness of the air outlet part 10 in the front-rear direction is less than 0.17. Further preferably, in some embodiments, the ratio of the distance from the second edge to the vertical plane extending in the transverse direction and located at the most front end of the air outlet part 10 to the maximum thickness of the air outlet part 10 in the front-rear direction is equal to 0.135.

[0179] In these embodiments, the first air outlet 11 is "fronted" by setting the ratio of the distance d of the second edge to the vertical plane extending in the transverse direction where the front end of the air outlet portion 10 is located to the maximum thickness D of the air outlet portion 10 in the front-rear direction, so that the airflow blown out of the first air outlet 11 is more forward, compared to the prior art in which the two first air outlets 11 are oppositely arranged, which is conducive to increasing the air outlet angle of the air conditioner indoor unit to meet the needs of users.

[0180] In some embodiments of the present application, as shown in Figure 11 the ratio of the distance h of the second edge to the third edge in the transverse direction to the maximum thickness H of the air outlet portion 10 in the transverse direction is greater than or equal to 0.3. Preferably, in some embodiments, the ratio of the distance h of the second edge to the third edge in the transverse direction to the maximum thickness H of the air outlet portion 10 in the transverse direction is greater than or equal to 0.4. Further preferably, in some embodiments, the ratio of the distance h of the second edge to the third edge in the transverse direction to the maximum thickness H of the air outlet portion 10 in the transverse direction is equal to 0.64.

[0181] In these embodiments, the air outlet ranges of the first air outlet 11 and the second air outlet 17 are ensured by setting the ratio of the distance h of the second edge to the third edge in the transverse direction to the maximum thickness H of the air outlet portion 10 in the transverse direction, thereby further expanding the air outlet range and air outlet angle of the air conditioner indoor unit.

[0182] In some embodiments of the present application, as shown in Figure 11 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 transverse 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 transverse direction is 0.36.

[0183] In some embodiments of the present application, as shown in Figure 11 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 transverse 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 transverse direction is 0.19.

[0184] As shown in 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.

[0185] 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.

[0186] 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.

[0187] 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.

[0188] 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.

[0189] 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.

[0190] 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°.

[0191] 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.

[0192] In some embodiments of the present invention, such as Figure 12As shown, the first air deflector is close to the second edge, and the angle between the tangent plane of the middle line of the front surface of the first air deflector and the reference plane is a2, a2 is 40° to 90°, preferably, a2 is 56°. The angle between the tangent plane of the middle line of the front surface of the second air deflector and the reference plane is a3, a3 is 70° to 90°, preferably, a3 is 80°.

[0193] In some embodiments of the present application, as shown in Figure 12 The angle between the air outlet direction of the second air outlet 17 and the vertical reference plane is greater than 50°. Preferably, the angle is 70°. This arrangement further increases the air outlet angle of the air conditioner indoor unit.

[0194] Further, in some embodiments of the present application, as shown in Figure 12 The angle between the tangent plane of the front end edge of the windward surface of the arc-shaped plate and the vertical reference plane is greater than 50°. Preferably, the angle between the tangent plane of the front end edge of the windward surface of the arc-shaped plate and the vertical reference plane is 70°.

[0195] In some embodiments of the present application, each air outlet main part is provided with an air inlet 16 communicating with the communication port. Each air outlet main part is provided with a fan, which guides air into the air outlet main part and blows out from the communication port. The fan is a cross-flow fan 14. At least one air outlet main part is provided with a heat exchanger 15. When one of the two air outlet main parts blows a heat exchange air flow, the heat exchange air flow, the non-heat exchange air flow, and the air in the air guide interval 20 mix in front of the air conditioner indoor unit, so that the temperature of the mixed air flow is closer to room temperature, and the air outlet is soft. When both air outlet main parts blow heat exchange air flow, the heat exchange air flow and the air in the air guide interval 20 mix in front of the air conditioner indoor unit, also making the air outlet soft.

[0196] In some embodiments of the present application, the air conditioner has multiple air outlet modes. As shown in Figure 4 The air deflector 12 closes the first air outlet 11, and the air passing through the communication port enters the bypass air duct through the air inlet structure 19 and blows out from the second air outlet 17 through the air outlet structure 18. This air outlet mode can be called a breeze mode. As shown in Figure 6 The air deflector 12 extends in the front-rear direction, at this time the first air outlet 11 has the largest opening area, and the air outlet of the two first air outlets 11 drives the air in the air guide interval 20 to flow forward, at this time the air volume is the largest, this air outlet mode can be called a maximum air volume mode. As shown in Figure 7 The air outlet of the two first air outlets 11 blows towards each other, and the air outlet of the two first air outlets 11 drives the air in the air guide interval 20 to flow forward, so that the wind speed after mixing is larger, which helps to send air to a distance, this air outlet mode can be called a long-distance air sending mode. As shown in Figure 8As shown, the two air deflectors of the air deflector 12 are both inclined to the direction of the air deflector body 30, and the air outlets of the two first air outlets 11 are both directed to the direction away from each other, so that the air outlets of the two first air outlets 11 are mainly directed to the two sides, and this air outlet mode can be called as a wide-angle wrap-around air supply mode. Figure 9 As shown, the air deflector of the air deflector 12 near the second edge extends forward and backward, and the air deflector near the air deflector body 30 forms a wide-angle air duct with the first air deflector surface 32, so that the air outlet angle of the air passing through the first air outlet 11 is relatively large, and this air outlet mode can be called as a wide-angle air supply mode (also can be called as a wide-area uniform air supply mode). As shown, Figure 5 As shown, one of the air deflectors is closed, and the other air deflector is deflected, and this air outlet mode can be called as a single air supply mode. One of the air deflectors is deflected, and the heat exchanger in the other air outlet is closed, and the air inlet of the other air outlet is communicated with the indoor environment or the outdoor environment, that is, one air outlet outlet heat exchange air, and the other air outlet outlet non-heat exchange indoor air or fresh air, and this air outlet mode can be called as a health air supply mode.

[0197] So far, those skilled in the art should recognize that although the present application has been shown and described in detail in the above embodiments, many other variations or modifications in accordance with the principles of the present application can be directly determined or deduced from the disclosure of the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variations or modifications.

Claims

1. A control method of an air conditioner, characterized by, The air conditioner comprises two air outlet parts arranged side by side, and the two air outlet parts are a first air outlet part and a second air outlet part respectively; The control method of the air conditioner comprises: obtaining an indoor environment temperature to obtain a first temperature; in response to the first temperature satisfying a first preset condition, obtaining a frequency of a compressor to obtain a first frequency, and calculating a frequency difference value between the first frequency and a minimum frequency of the compressor; controlling the compressor to operate at the first frequency, and controlling the first air outlet part and / or the second air outlet part to output heat exchange air according to the frequency difference value; The control method of the air conditioner further comprises: in response to the compressor starting, obtaining the indoor environment temperature to obtain a second temperature; calculating an absolute value of a difference between the second temperature and a set temperature of the air conditioner, and denoting the absolute value as a temperature difference value; controlling the compressor to operate at a second frequency according to the temperature difference value and an outer ring temperature limiting frequency; in response to the compressor operating at the second frequency, obtaining the indoor environment temperature to obtain a third temperature; in response to the third temperature satisfying a second preset condition, controlling the compressor to operate at a room temperature PID frequency; in response to the first temperature satisfying the first preset condition, controlling the compressor to exit the room temperature PID frequency operation, and controlling the compressor to operate at the first frequency; the second preset condition comprises: the absolute value of the difference between the third temperature and the set temperature of the air conditioner is less than a preset difference value, and the preset difference value is a positive value; the control method according to the temperature difference value and the outer ring temperature limiting frequency, and the control of the compressor to execute the second frequency, comprises: the second frequency is a product of the outer ring temperature limiting frequency and a first preset coefficient, the first preset coefficient is less than or equal to 1; if the temperature difference value is greater than or equal to a first threshold value, the first preset coefficient is assigned as a first coefficient; if the temperature difference value is greater than or equal to a second threshold value and less than the first threshold value, the first preset coefficient is assigned as a second coefficient; if the temperature difference value is less than the second threshold value, the first preset coefficient is assigned as a third coefficient; wherein the first threshold value is greater than the second threshold value, the first coefficient > the second coefficient > the third coefficient, and the first coefficient is equal to 1.

2. The control method according to claim 1, wherein the control of the first air outlet part and / or the second air outlet part to output heat exchange air according to the frequency difference value comprises: if the frequency difference value is greater than or equal to a preset value, controlling the first air outlet part and the second air outlet part to output heat exchange air at the same time; if the frequency difference value is less than the preset value, controlling the first air outlet part or the second air outlet part to output heat exchange air; the control method further comprises: when controlling the first air outlet part or the second air outlet part to output heat exchange air, controlling the other air outlet part to output non-heat exchange air or no air.

3. The control method according to claim 1, characterized by, the first preset condition comprises: the absolute value of the difference between the first temperature and the set temperature of the air conditioner is less than a preset difference value for a duration greater than or equal to a first preset time, and the preset difference value is a positive value.

4. The control method according to claim 1, characterized by, the control method further comprises: acquiring an indoor environment temperature to obtain a fourth temperature in response to that the compressor runs at the first frequency for a second preset time; judging whether the fourth temperature meets a third preset condition; if yes, controlling the running frequency of the compressor according to a preset control strategy; if no, controlling the compressor to reduce the frequency.

5. The control method according to claim 4, wherein the third preset condition comprises: when the air conditioner runs in cooling mode, the fourth temperature is greater than the difference between the set temperature of the air conditioner and a temperature compensation value; when the air conditioner runs in heating mode, the fourth temperature is less than the sum of the set temperature of the air conditioner and the temperature compensation value; wherein the temperature compensation value is a positive value; the preset control strategy comprises: within a continuous third preset time, if the absolute value of the difference between the fourth temperature and the set temperature of the air conditioner is less than or equal to the temperature compensation value, the compressor continues to run at the first frequency; acquiring an indoor environment temperature to obtain a fifth temperature; if the fifth temperature meets a fourth preset condition, the compressor runs at a room temperature PID frequency; the fourth preset condition comprises: when the compressor runs in cooling mode, the fifth temperature is greater than the sum of the set temperature of the air conditioner and the temperature compensation value; when the compressor runs in heating mode, the fifth temperature is less than the difference between the set temperature of the air conditioner and the temperature compensation value; the control of the compressor to reduce the frequency comprises: controlling the compressor to reduce the frequency according to a coefficient setting program; when the compressor reduces the frequency to a minimum frequency, and the running time of the compressor at the minimum frequency is greater than or equal to a fourth preset time, the compressor is controlled to stop; when the compressor reduces the frequency to the minimum frequency, acquiring an indoor environment temperature to obtain a sixth temperature; if the sixth temperature meets a fifth preset condition, and the running time of the compressor at the minimum frequency is less than the fourth preset time, the running time of the compressor at the minimum frequency is recalculated; the fifth preset condition comprises: when the air conditioner runs in cooling mode, the sixth temperature is greater than the difference between the set temperature of the air conditioner and the temperature compensation value; when the air conditioner runs in heating mode, the sixth temperature is less than the difference between the set temperature of the air conditioner and the temperature compensation value.

6. The control method according to claim 1, wherein each air outlet comprises a first air outlet, an air duct, a heat exchanger and a fan; the first air outlet is arranged on the front side of the air outlet, the air duct is in communication with the first air outlet, and the heat exchanger and the fan are arranged in the air duct; the air conditioner further comprises a flow path control device configured to control the two heat exchangers to work simultaneously or only one of the heat exchangers to work; each air outlet further comprises a second air outlet and a bypass air duct; the second air outlet is arranged on the front side of the air outlet, and the second air outlet is located on the side of the first air outlet away from the other air outlet; the bypass air duct is in communication with the second air outlet and the air duct; the first air outlet and the second air outlet extend along the length direction of the air outlet. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Each of the air outlets has a first air guide surface connected to a side edge of the corresponding first air outlet away from the other air outlet; The air conditioner further comprises two air guide devices, each of the air guide devices comprising at least one air guide plate arranged at the corresponding first air outlet for guiding air out in a width direction of the first air outlet and movable to a wide-angle air guide position in which the wide-angle air guide position and the first air guide surface define a wide-angle air duct; When the air guide plate is moved to the wide-angle air guide position, an edge of the air guide plate closest to the second air outlet is located at a front side of the first air guide surface; The control method further comprises: obtaining a user-selected air supply mode; and if a wide-angle air supply mode instruction sent by the user is received, controlling the first air outlet and / or the second air outlet to operate in the wide-angle air supply mode. The wide-angle air supply mode comprises: controlling the air guide plates of the first air outlet and / or the second air outlet to move to the wide-angle air guide position.

7. An air conditioner characterized by comprising: The control device comprises a memory and a processor, and the memory stores a control program. When the control program is executed by the processor, the control method of the air conditioner according to any one of claims 1 to 6 is implemented.

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