Air conditioner

Abstract

The air conditioner comprises a refrigerant circulation loop, an indoor environment temperature sensor, an indoor coil pipe temperature sensor, an indoor return air temperature sensor, an air guide plate, an indoor fan and a controller, and the controller is configured to determine a first temperature compensation coefficient according to the current position of the air guide plate, a second temperature compensation coefficient is determined according to the current air speed gear of the indoor fan, a third temperature compensation coefficient is determined according to the temperature of the indoor coil pipe, and a temperature compensation value is determined according to the first temperature compensation coefficient, the second temperature compensation coefficient and the third temperature compensation coefficient; a target temperature is obtained according to the temperature compensation value, the indoor return air temperature and a first preset temperature compensation value; the operation state of the air conditioner is controlled according to the target temperature, so that the indoor environment temperature reaches the target temperature, the temperature control requirement of a user is better met, the indoor environment temperature can be evenly distributed, the better heating effect is achieved, and the user experience feeling is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and more particularly to an air conditioner. Background Art

[0002] In the related art, a fixed temperature compensation value is usually used for temperature compensation, ignoring the influence of dynamic factors such as wind speed change, indoor coil temperature fluctuation, and air deflector position change on the indoor environmental temperature distribution. This may result in significant differences in the indoor environmental temperature in different areas, such as local overheating, which in turn affects the user experience. In addition, after the temperature compensation is completed, the air conditioner is turned off, or the compressor stops due to a fault, the uneven distribution of the indoor environmental temperature may cause the compressor to start up late, resulting in the compressor not working for a long time, affecting the continuous adjustment of the indoor environmental temperature and comfort, unable to meet the user's temperature control requirements, and unable to achieve a better heating effect, thus unable to improve the user's body feeling comfort. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, the object of the present invention is to provide an air conditioner.

[0004] An air conditioner provided by the present invention includes: a refrigerant circulation circuit that enables the refrigerant to perform a refrigeration cycle in a circuit composed of a compressor, a condenser, an expansion valve, and an evaporator, where one of the condenser and the evaporator is an outdoor heat exchanger and the other is an indoor heat exchanger; an indoor environmental temperature sensor for detecting the indoor environmental temperature; an indoor coil temperature sensor for detecting the indoor coil temperature; an indoor return air temperature sensor for detecting the indoor return air temperature; an air deflector for adjusting the air outlet direction; an indoor fan for driving the indoor air to pass through the indoor heat exchanger by rotation so that the refrigerant exchanges heat with the indoor air; a controller configured to: when it is determined that the air conditioner operates in a heating mode, obtain the current position of the air deflector, the current wind speed gear of the indoor fan, and the indoor coil temperature; determine a first temperature compensation coefficient according to the current position of the air deflector, a second temperature compensation coefficient according to the current wind speed gear of the indoor fan, and a third temperature compensation coefficient according to the indoor coil temperature, where different air deflector positions correspond to different temperature compensation coefficients, and different indoor fan wind speed gears correspond to different temperature compensation coefficients; determine a temperature compensation value according to the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient; obtain a target temperature according to the temperature compensation value, the indoor return air temperature, and a first preset temperature compensation value; and control the operating state of the air conditioner according to the target temperature so that the indoor environmental temperature reaches the target temperature.

[0005] In addition, the air conditioner according to the embodiment of the present invention may further have the following additional technical features:

[0006] Further, when determining the third temperature compensation coefficient according to the indoor coil temperature, the controller is configured to: determine the corrected indoor coil temperature according to the indoor coil temperature; and determine the third temperature compensation coefficient according to the corrected indoor coil temperature.

[0007] The above technical solution has the following advantages or beneficial effects: The corrected indoor coil temperature is determined according to the obtained indoor coil temperature, that is, when the indoor coil temperature changes, corresponding corrected indoor coil temperatures can be obtained for different indoor coil temperatures, improving the accuracy of determining the indoor coil temperature, and thus improving the accuracy of determining the third temperature compensation coefficient when determining the third temperature compensation coefficient based on the corrected indoor coil temperature.

[0008] Further, when determining the corrected indoor coil temperature according to the indoor coil temperature, the controller is configured to: determine the corrected indoor coil temperature according to the first difference between the first preset temperature and the first preset temperature threshold value, where when the first difference is less than the first preset value, the indoor coil temperature is determined as the corrected indoor coil temperature, and when the first difference is not less than the first preset value, the corrected indoor coil temperature is determined according to the indoor coil temperature, the first preset temperature, and the first preset temperature threshold value.

[0009] The above technical solution has the following advantages or beneficial effects: Determining the corrected indoor coil temperature based on the first preset temperature and the first preset temperature threshold value can improve the accuracy of determining the corrected indoor coil temperature.

[0010] Further, when determining the temperature compensation value according to the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient, the controller is configured to: determine that the compressor starts, and determine whether the start time of the compressor does not exceed the first preset time; if so, perform the steps of determining the first temperature compensation coefficient according to the current position of the air deflector, determining the second temperature compensation coefficient according to the current wind speed gear of the indoor fan, and determining the third temperature compensation coefficient according to the indoor coil temperature; if the start time of the compressor exceeds the first preset time, and the wind speed gear and the position of the air deflector of the indoor fan remain unchanged and the duration exceeds the second preset time, then re-determine the corrected indoor coil temperature in a preset manner, re-determine the third temperature compensation coefficient based on the re-determined corrected indoor coil temperature, and re-determine the temperature compensation value based on the re-determined third temperature compensation coefficient.

[0011] The above technical solution has the following advantages or beneficial effects: By determining the acquisition methods of the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient based on the startup time of the compressor, the accuracy of determining the temperature compensation coefficient can be improved, and the state of the compressor can be fully considered, so as to obtain an accurate temperature compensation value and improve the accuracy of determining the temperature compensation value.

[0012] Further, when re-determining the indoor coil correction temperature according to a preset method, the controller is configured to: use the third preset time as the detection period, obtain the indoor coil temperature once every fourth preset time, and determine a first temperature value and a second temperature value from the obtained multiple indoor coil temperatures, where the first temperature value is the indoor coil temperature detected for the first time within the detection period, and the second temperature value is the indoor coil temperature detected for the last time within the detection period; re-determine the indoor coil correction temperature based on the first temperature value and the second temperature value.

[0013] The above technical solution has the following advantages or beneficial effects: Determining the indoor coil correction temperature based on the first temperature value and the second temperature value obtained within the detection period can improve the accuracy of determining the indoor coil correction temperature.

[0014] Further, when re-determining the indoor coil correction temperature based on the first temperature value and the second temperature value, the controller is further configured to: determine the absolute value of the second difference between the first temperature value and the second temperature value; when the absolute value of the second difference is greater than or equal to the second preset value, determine the indoor coil correction temperature according to the second temperature value, the first preset temperature, and the first preset temperature critical value; when the absolute value of the second difference is less than the second preset value, use the indoor coil temperature detected for the last time in the previous detection period of the detection period as the indoor coil correction temperature.

[0015] The above technical solution has the following advantages or beneficial effects: Comparing the absolute value of the difference between the first temperature value and the second temperature value with the second preset value and determining the indoor coil correction temperature based on the comparison result can obtain a more accurate indoor coil correction temperature.

[0016] Further, when determining the third temperature compensation coefficient according to the corrected temperature of the indoor coil, the controller is configured to: when the corrected temperature of the indoor coil does not exceed the first critical value, determine the first preset correction coefficient as the third temperature compensation coefficient; when the corrected temperature of the indoor coil exceeds the first critical value and does not exceed the second critical value, determine the first operation correction coefficient as the third temperature compensation coefficient, where the first operation correction coefficient is obtained according to the corrected temperature of the indoor coil, the first calibration coefficient, and the first calibration value; when the corrected temperature of the indoor coil exceeds the second critical value and does not exceed the third critical value, determine the second operation correction coefficient as the third temperature compensation coefficient, where the second operation correction coefficient is obtained according to the corrected temperature of the indoor coil, the second calibration coefficient, and the second calibration value; when the corrected temperature of the indoor coil exceeds the third critical value, determine the second preset correction coefficient as the third temperature compensation coefficient.

[0017] The above technical solution has the following advantages or beneficial effects: By comparing the corrected temperature of the indoor coil with the first critical value, the second critical value, and the third critical value, and determining the third temperature compensation coefficient based on the comparison results, the corrected temperature of the indoor coil can obtain the corresponding third temperature compensation coefficient in different temperature ranges, improving the diversity and accuracy of the determination of the third temperature compensation coefficient.

[0018] Further, when determining the temperature compensation value according to the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient, the controller is further configured to: obtain the change situation of the wind speed gear of the indoor fan; when the indoor fan changes the wind speed gear in the first preset mode, when it is determined that the change of the wind speed gear of the indoor fan is completed, determine the wind speed gear obtained last during the change process of the wind speed gear of the indoor fan as the target wind speed gear, and re-obtain the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient under the target wind speed gear to obtain the updated first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient, where when the wind speed gear of the indoor fan does not change within the fifth preset time after the change, it is determined that the change of the wind speed gear is completed; when the indoor fan changes the wind speed gear in the second preset mode, update the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient every sixth preset time; in the first preset mode or the second preset mode, re-determine the temperature compensation value according to the updated first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient.

[0019] The above technical solution has the following advantages or beneficial effects: When the indoor fan is in different preset modes, the ways of updating the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient are different, which can ensure that in different preset modes, the temperature compensation coefficient can be dynamically adjusted according to the change of the wind speed gear of the indoor fan, improving the accuracy of determining the temperature compensation coefficient, and further improving the accuracy of determining the temperature compensation value.

[0020] Further, when determining the temperature compensation value according to the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient, the controller is further configured to: obtain the position change of the air deflector; when the air deflector changes its position in the third preset mode, when it is determined that the position change of the air deflector is completed, determine the position of the air deflector obtained last time during the position change process of the air deflector as the target position, and at the target position, re-obtain the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient to obtain the updated first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient, where when the position of the air deflector does not change within the seventh preset time after the position change, it is determined that the position change of the air deflector is completed; when the air deflector changes its position in the fourth preset mode, update the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient every eighth preset time; in the third preset mode or the fourth preset mode, re-determine the temperature compensation value according to the updated first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient.

[0021] The above technical solution has the following advantages or beneficial effects: When the air deflector is in different preset modes, the ways of updating the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient are different, which can ensure that in different preset modes, the temperature compensation coefficient can be dynamically adjusted according to the position change of the air deflector, improving the accuracy of determining the temperature compensation coefficient, and further improving the accuracy of determining the temperature compensation value.

[0022] Further, when obtaining the target temperature according to the temperature compensation value, the indoor return air temperature, and the first preset temperature compensation value, the controller is further configured to: determine the state of the compressor, where the state of the compressor includes shutdown or restart after shutdown; determine the second preset temperature compensation value according to the state of the compressor; obtain the target temperature according to the temperature compensation value, the indoor return air temperature, the first preset temperature compensation value, and the second preset temperature compensation value.

[0023] The above technical solution has the following advantages or beneficial effects: Determining the second preset temperature compensation value according to the state of the compressor can improve the accuracy of the temperature compensation value. Furthermore, when performing temperature compensation based on the temperature compensation value, the indoor ambient temperature distribution can be made uniform, and the situation where the compressor does not start for a long time can be avoided, improving the accuracy of target temperature determination, thereby achieving a better heating effect.

[0024] Furthermore, when determining the second preset temperature compensation value according to the state of the compressor, the controller is configured to: when it is determined that the compressor is stopped and the compressor remains in the stopped state within the ninth preset time, determine the second preset temperature compensation value according to the temperature compensation value corresponding before the compressor stops; when the restart time after the compressor stops does not exceed the tenth preset time, determine the second preset temperature compensation value according to the temperature compensation value corresponding before the compressor stops; when the restart time after the compressor stops exceeds the eleventh preset time, use the first calibrated compensation value as the second preset temperature compensation value; when the restart time after the compressor stops exceeds the twelfth preset time, use the second calibrated compensation value as the second preset temperature compensation value, where the tenth preset time is less than the eleventh preset time, and the eleventh preset time is less than the twelfth preset time.

[0025] The above technical solution has the following advantages or beneficial effects: Different states of the compressor result in different second preset temperature compensation values, improving the accuracy and diversity of the second preset temperature compensation value.

[0026] Furthermore, when compensating the indoor ambient temperature according to the target temperature, the controller is configured to: when it is determined that the number of times of compensating the indoor ambient temperature by the target temperature exceeds once, and / or the startup time after the compressor stops exceeds the tenth preset time, control the operating state of the air conditioner so that the indoor ambient temperature changes at a preset temperature change rate until the indoor ambient temperature reaches the target temperature.

[0027] The above technical solution has the following advantages or beneficial effects: Changing at a preset temperature change rate can avoid the situation where the indoor ambient temperature is too high or too low during the temperature compensation process. Instead, continuous adjustment is made according to the preset temperature change rate, which can better meet the user's temperature control requirements and improve the user experience.

[0028] For the air conditioner according to an embodiment of the present invention, when it is determined that the air conditioner operates in the heating mode, the first temperature compensation coefficient is determined according to the current position of the air deflector obtained, the second temperature compensation coefficient is determined according to the current wind speed gear of the indoor fan obtained, and the third temperature compensation coefficient is determined according to the indoor coil temperature. In this way, after the position of the air deflector, the wind speed gear, and the indoor coil temperature change, updated temperature compensation coefficients can be obtained. Then, the temperature compensation value is determined according to the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient. Since the temperature coefficients can be updated in real time, the temperature compensation value can also be updated in real time based on the temperature compensation coefficients updated in real time. Furthermore, the target temperature is obtained based on the temperature compensation value, the indoor return air temperature, and the first preset temperature compensation value. In this way, it can be ensured that when the temperature compensation value compensates insufficiently or less for the indoor return air temperature, the first preset temperature compensation value can assist the temperature compensation value to compensate the indoor return air temperature, so that a more accurate target temperature can be obtained. Thus, when controlling the operating state of the air conditioner according to the target temperature, it can be ensured that the indoor environmental temperature reaches the target temperature, and the obtained indoor environmental temperature meets the user's needs. In addition, the temperature compensation value is a dynamically changing value, which can continuously adjust the indoor environmental temperature, better meet the user's temperature control requirements, and also make the indoor environmental temperature distribution uniform, achieve a better heating effect, and improve the user experience.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] Figure 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;

[0032] Figure 2 is a schematic structural diagram of a controller according to an embodiment of the present invention;

[0033] Figure 3 is a schematic structural diagram of an air conditioner according to another embodiment of the present invention;

[0034] Figure 4 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention;

[0035] Figure 5 is a flowchart of determining the corrected temperature of the indoor coil according to an embodiment of the present invention;

[0036] Figure 6A flowchart for determining a temperature compensation value according to an embodiment of the present invention;

[0037] Figure 7 A flowchart for determining a corrected temperature of an indoor coil according to another embodiment of the present invention;

[0038] Figure 8 A flowchart for determining a third temperature compensation coefficient according to the corrected temperature of the indoor coil according to an embodiment of the present invention. Detailed implementation manners

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0041] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0042] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The embodiment of the present invention provides an air conditioner 10. Refer to Figure 1 , the air conditioner 10 includes a refrigeration system for exchanging heat with indoor air to meet the refrigeration or heating requirements.

[0044] The refrigeration system includes a compressor, a condenser, an electronic expansion valve, and an evaporator. In the present invention, the air conditioner 10 performs the refrigeration cycle of the air conditioner 10 by using the compressor, the condenser, the electronic expansion valve, and the evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

[0045] The compressor compresses the refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0046] The electronic expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the electronic expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor.

[0047] The evaporator can achieve a refrigeration effect by performing a heat exchange with the material to be cooled by utilizing the latent heat of evaporation of the refrigerant. Throughout the cycle, the air conditioner 10 can adjust the temperature of the indoor space.

[0048] The outdoor unit 2 of the air conditioner 10 refers to the part of the refrigeration cycle including the compressor and the outdoor heat exchanger. The indoor unit 1 of the air conditioner 10 includes an indoor heat exchanger, and the electronic expansion valve can be provided in the indoor unit 1 or the outdoor unit 2.

[0049] The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger serves as a condenser, the air conditioner 10 serves as a heater in the heating mode. When the indoor heat exchanger serves as an evaporator, the air conditioner 10 serves as a cooler in the cooling mode.

[0050] The air conditioner 10 in the present invention includes an indoor unit 1 and an outdoor unit 2. The indoor unit 1 and the outdoor unit 2 can be set as an integrated machine or a split machine. The indoor unit 1 can be set as a wall-mounted unit, a ceiling unit, a duct unit, etc., and the indoor unit 1 is installed on the top or ceiling of the indoor room.

[0051] Refer to Figure 1 , taking the indoor wall-mounted unit as an example, the indoor wall-mounted unit is usually installed at positions such as the indoor wall surface. Again, for example, the indoor cabinet unit (not shown in the figure) is also a form of the indoor unit 1.

[0052] Taking the split machine as an example, the air conditioner 10 includes an indoor unit 1 and an outdoor unit 2. Among them, the outdoor unit 2 is usually set outdoors for heat exchange with the indoor environment.

[0053] In addition, as shown in the figure, the air conditioner 10 is equipped with a controller 71 to control the operation of each component in the internal air conditioner 10, so that each component of the air conditioner 10 operates to achieve each predetermined function of the air conditioner 10. Among them, a control device 200 is also attached to the air conditioner 10. Exemplarily, the control device 200 is specifically set as a remote controller, and the remote controller has a function of communicating with the controller 71 using, for example, infrared rays or other communication methods. The remote controller is used for users to perform various controls on the air conditioner 10 to realize the interaction between the user and the air conditioner 10.

[0054] The indoor unit 1 of the air conditioner 10 in the embodiment of the present invention is installed at the top or upper part of the room. Generally speaking, the installation height of the indoor unit 1 is higher than the user activity area. The indoor unit 1 includes an air return opening and an air outlet communicating with the room. The indoor air passes through the air return opening into the indoor unit 1 and flows back into the room through the air outlet.

[0055] In the refrigerant circulation circuit of the present invention, the refrigerant circulates in the circuit composed of a compressor, a condenser, an electronic expansion valve, and an evaporator. One of the condenser and the evaporator is an outdoor heat exchanger, and the other is an indoor heat exchanger. The indoor heat exchanger is used for heat exchange with the air in the indoor unit 1, and the outdoor heat exchanger of the outdoor unit 2 is used for heat exchange with the air in the outdoor unit 2, so as to meet the cooling or heating requirements of the air conditioner 10.

[0056] The indoor unit 1 also includes an indoor fan. The indoor fan is arranged near the air return opening or the air outlet of the indoor heat exchanger and is used to send the heat-exchanged air to the room. The indoor fan includes multiple gears and is used to change the air outlet speed of the air flow at the air outlet.

[0057] A wind deflector is arranged at the position of the air outlet. By changing the relative rotation angle between the wind deflector and the air outlet, the outflow direction of the air flowing through the air outlet is adjusted, thereby affecting the stratification of the air temperature in the room.

[0058] In the embodiment shown in the present invention, the air conditioner 10 further includes a controller 71. The controller 71 refers to a device that can generate an operation control signal according to the instruction operation code and the timing signal to instruct the air conditioner 10 to execute the control instruction. For example, in response to the power-on or power-off instruction issued by the user received, the controller 71 can perform operations related to the object selected by the power-on or power-off instruction.

[0059] The embodiment of the present invention also provides a schematic diagram of the hardware structure of the controller 71, as Figure 2 shown. The controller 71 includes a processor 83. Optionally, it further includes a memory 82 and a communication interface 84 connected to the processor 83. The processor 83, the memory 82, and the communication interface 84 are connected through a bus 81.

[0060] The processor 83 may be a central processing unit (CPU), a general-purpose processor 83, a network processor 83 (NP), a digital signal processor 83 (DSP), a microprocessor 83, a microcontroller 718, a programmable logic device (PLD), or any combination thereof. The processor 83 may also be any other device with processing capabilities, such as a circuit, a device, or a software module. The processor 83 may also include multiple CPUs, and the processor 83 may be a single-core (single CPU) processor 83 or a multi-core (multi CPU) processor 83. The processor 83 here may refer to one or more devices, circuits, or processing cores for processing data (such as computer program instructions).

[0061] The memory 82 may be a read-only memory 82 (ROM) or other types of static storage devices that can store static information and instructions, a random access memory 82 (RAM), or other types of dynamic storage devices that can store information and instructions. It may also be an electrically erasable programmable read-only memory 82 (EEPROM), a compact disc read-only memory (CD ROM), or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media, or any other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer. The embodiments of the present invention do not impose any restrictions on this. The memory 82 may exist independently or may be integrated with the processor 83. Among them, the memory 82 may contain computer program code. The processor 83 is used to execute the computer program code stored in the memory 82, thereby implementing the control method of the air conditioner provided by the embodiments of the present invention.

[0062] The communication interface 84 may be used to communicate with other devices or communication networks (such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.). The communication interface 84 may be a module, a circuit, a transceiver, or any device capable of implementing communication.

[0063] The bus 81 can be a peripheral component interconnect (PCI) bus 81, an extended industry standard architecture (EISA) bus 81, or the like. The bus 81 can be divided into an address bus 81, a data bus 81, a control bus 81, etc. For ease of representation, Figure 2 only a thick line is used to represent it in Figure 2 , but it does not mean that there is only one bus 81 or one type of bus 81.

[0064] Next, refer to Figures 3 - 8 to describe an air conditioner according to an embodiment of the present invention.

[0065] Figure 3 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention. As Figure 3 shown, an air conditioner 10 includes: a refrigerant circulation circuit 11, an indoor ambient temperature sensor 12, an indoor coil temperature sensor 13, an indoor return air temperature sensor 14, a wind deflector 15, an indoor fan 16, and a controller 71.

[0066] Among them, the refrigerant circulation circuit 11 enables the refrigerant to perform a refrigeration cycle in a circuit composed of a compressor, a condenser, an expansion valve, and an evaporator. One of the condenser and the evaporator is an outdoor heat exchanger, and the other is an indoor heat exchanger; the compressor is used to compress the low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure refrigerant gas and discharge it to the condenser; the indoor ambient temperature sensor 12 is used to detect the indoor ambient temperature; the indoor coil temperature sensor 13 is used to detect the indoor coil temperature; the indoor return air temperature sensor 14 is used to detect the indoor return air temperature; the wind deflector 15 is used to adjust the air outlet direction; the indoor fan 16 is used to drive the indoor air to pass through the indoor heat exchanger by rotation, so that the refrigerant exchanges heat with the indoor air.

[0067] The controller 71 is configured to: when it is determined that the air conditioner 10 operates in the heating mode, obtain the current position of the wind deflector 15, the current wind speed gear of the indoor fan 16, and the indoor coil temperature; determine a first temperature compensation coefficient according to the current position of the wind deflector 15, determine a second temperature compensation coefficient according to the current wind speed gear of the indoor fan 16, and determine a third temperature compensation coefficient according to the indoor coil temperature, wherein different positions of the wind deflector correspond to different temperature compensation coefficients, and different wind speed gears of the indoor fan correspond to different temperature compensation coefficients; determine a temperature compensation value according to the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient; obtain a target temperature according to the temperature compensation value, the indoor return air temperature, and a first preset temperature compensation value; control the operating state of the air conditioner according to the target temperature so that the indoor ambient temperature reaches the target temperature.

[0068] In an embodiment, when it is determined that the air conditioner 10 operates in a heating mode, for example, the current position of the air deflector 15 can be obtained through the air deflector sensor, and the current wind speed of the indoor fan 16 also needs to be obtained, and the indoor coil temperature is obtained according to the indoor coil temperature sensor 13. The first temperature compensation coefficient is determined according to the obtained current position of the air deflector 15 and denoted as A_heat_Angle, the second temperature compensation coefficient is determined according to the current wind speed gear of the indoor fan 16 and denoted as A_heat_Fan, and the third temperature compensation coefficient is determined according to the indoor coil temperature and denoted as A_heat_Tc. Then, the temperature compensation value is determined according to the first temperature compensation coefficient A_heat_Angle, the second temperature compensation coefficient A_heat_Fan, and the third temperature compensation coefficient A_heat_Tc, and is denoted as A_heat for example.

[0069] In addition, different positions of the air deflector correspond to different temperature compensation coefficients. For example, the temperature compensation coefficient corresponding to the air deflector 15 in the first position is A_heat_Angle1, the temperature compensation coefficient corresponding to the air deflector 15 in the second position is A_heat_Angle2, and the temperature compensation coefficient corresponding to the air deflector 15 when it is not in the first position and the second position is A_heat_Angle3 or A_heat_Angle4 or A_heat_Angle5 or A_heat_Angle6.

[0070] Similarly, different wind speed gears of the indoor fan correspond to different temperature compensation coefficients. The second temperature compensation coefficient includes, for example, a strong wind coefficient, a high wind coefficient, a medium wind coefficient, and a low wind coefficient. When the wind speed gear of the indoor fan is in the low wind gear, the corresponding temperature compensation coefficient is the low wind coefficient. When the wind speed gear of the indoor fan is in the medium wind gear, the corresponding temperature compensation coefficient is the medium wind coefficient. When the indoor fan is in the strong wind gear, the corresponding temperature compensation coefficient is the strong wind coefficient.

[0071] Specifically, the temperature compensation value A_heat can be calculated according to the following calculation formula, that is:

[0072] A_heat = int((A_heat_Angle + A_heat_Fan * A_heat_Tc) * 10) * 0.1...(1)

[0073] Wherein, int refers to the process of rounding the calculated temperature compensation value A_heat. In other words, the temperature compensation value A_heat is an integer.

[0074] Specifically, the product of the second temperature compensation coefficient A_heat_Fan and the third temperature compensation coefficient A_heat_Tc is summed with the first temperature compensation coefficient A_heat_Angle, then multiplied by the coefficient 10 to ensure that the temperature compensation value A_heat is an integer, and finally multiplied by the coefficient 0.1 to obtain the temperature compensation value A_heat.

[0075] Then, based on the temperature compensation value A_heat, the indoor return air temperature, and the first preset temperature compensation value, the target temperature can be obtained. The first preset temperature compensation value can be set according to user requirements, for example, denoted as A 控制器 , the indoor return air temperature is denoted as Tair, and the target temperature is denoted as T 控 , then the target temperature T 控 is the sum of the indoor return air temperature Tair, the first preset temperature compensation value A 控制器 and the temperature compensation value A_heat, that is, based on the temperature compensation value A_heat and the first preset temperature compensation value A 控制器 compensate the indoor return air temperature Tair to obtain the target temperature T 控 . Thus, based on the target temperature T 控 control the operating state of the air conditioner 10 to make the indoor environmental temperature reach the target temperature T 控 , which makes the indoor environmental temperature distribution more uniform. At the same time, based on the target temperature T 控 dynamically adjust the indoor environmental temperature, so that the temperature will not be too high or too low, which can better meet the user's temperature control requirements, and can also improve the heating effect of the air conditioner 10 and enhance the user experience.

[0076] In an embodiment of the present invention, when determining the third temperature compensation coefficient A_heat_Tc according to the indoor coil temperature, the controller 71 is configured to: determine the indoor coil corrected temperature according to the indoor coil temperature; determine the third temperature compensation coefficient A_heat_Tc according to the indoor coil corrected temperature.

[0077] Specifically, when determining the third temperature compensation coefficient A_heat_Tc according to the indoor coil temperature, the controller 71 will perform correction processing on the indoor coil temperature to obtain a more accurate indoor coil corrected temperature. For example, the indoor coil corrected temperature can be determined according to the first preset temperature measured by the remote control and the first preset temperature critical value, or, after the air conditioner 10 has been running for a period of time, based on the start time of the compressor, determine the indoor coil corrected temperature according to a preset method, and then determine the third temperature compensation coefficient A_heat_Tc according to the indoor coil corrected temperature, which can improve the accuracy of obtaining the third temperature compensation coefficient A_heat_Tc, and further improve the accuracy of the temperature compensation value A_heat.

[0078] In an embodiment of the present invention, when determining the indoor coil corrected temperature according to the indoor coil temperature, the controller 71 is configured to: determine the indoor coil corrected temperature according to a first difference between a first preset temperature and a first preset temperature threshold value, wherein, when the first difference is less than a first preset value, the indoor coil temperature is determined as the indoor coil corrected temperature, and when the first difference is not less than the first preset value, the indoor coil corrected temperature is determined according to the indoor coil temperature, the first preset temperature, and the first preset temperature threshold value.

[0079] In the embodiment, when determining the indoor coil corrected temperature according to the indoor coil temperature, the controller 71 needs to further determine the first preset temperature and the first preset temperature threshold value, and determine the indoor coil corrected temperature according to the first difference between the first preset temperature and the first preset temperature threshold value, wherein the first preset temperature is the indoor environmental temperature directly obtained by the user through the remote controller in the current indoor environment, and the first preset temperature is denoted as Ts, the first preset temperature threshold value is denoted as Tc, the indoor coil corrected temperature is denoted as Tc', and the indoor coil temperature is denoted as T_incoil.

[0080] Specifically, if the first difference between the first preset temperature Ts and the first preset temperature threshold value Tc is less than the first preset value, for example, the first preset value is 0, then the indoor coil temperature T_incoil detected by the indoor coil temperature sensor 13 is the indoor coil corrected temperature Tc', that is, when Ts - Tc < 0, Tc' = T_incoil.

[0081] If the first difference between the first preset temperature Ts and the first preset temperature threshold value Tc is not less than the first preset value 0, that is, the first difference between the first preset temperature Ts and the first preset temperature threshold value Tc is greater than or equal to the first preset value 0, the indoor coil corrected temperature Tc' is determined according to the indoor coil temperature T_incoil, the first preset temperature Ts, and the first preset temperature threshold value Ts, that is, when Ts - Tc ≥ 0, Tc' = T_incoil - (Ts - Tc). It can be understood that the difference between the first preset temperature Ts and the first preset threshold value Tc is used as a compensation value to compensate the indoor coil temperature T_incoil, so as to obtain the indoor coil corrected temperature Tc'.

[0082] In one embodiment of the present invention, when determining the temperature compensation value A_heat according to the first temperature compensation coefficient A_heat_Angle, the second temperature compensation coefficient A_heat_Fan, and the third temperature compensation coefficient A_heat_Tc, the controller 71 is configured to: determine that the compressor starts, and judge whether the starting time of the compressor does not exceed a first preset time; if so, execute the steps of determining the first temperature compensation coefficient A_heat_Angle according to the current position of the air deflector 15, determining the second temperature compensation coefficient A_heat_Fan according to the current wind speed gear of the indoor fan 16, and determining the third temperature compensation coefficient A_heat_Tc according to the indoor coil temperature T_incoil; if the starting time of the compressor exceeds the first preset time, and the wind speed gear and the position of the air deflector of the indoor fan 16 remain unchanged and the duration exceeds a second preset time, then re-determine the indoor coil corrected temperature Tc' in a preset manner, re-determine the third temperature compensation coefficient A_heat_Tc based on the re-determined indoor coil corrected temperature Tc', and re-determine the temperature compensation value A_heat based on the re-determined third temperature compensation coefficient A_heat_Tc.

[0083] Specifically, after determining that the compressor starts, it is judged whether the starting time of the compressor does not exceed a first preset time, where the first preset time can be understood as the time after the compressor starts but has not reached a stable state.

[0084] For example, within a period of time when the compressor starts, the compressor is in an unstable operating state. The first preset time includes, for example, a first start time T1, a second start time T2, and a third start time T3, where T1 < T2 < T3. That is to say, when the compressor starts at any one of the first start time T1, the second start time T2, and the third start time T3, it is in an unstable operating state. The first temperature compensation coefficient A_heat_Angle can be directly determined according to the current position of the air deflector 15, the second temperature compensation coefficient A_heat_Fan can be determined according to the current wind speed gear of the indoor fan 16, and the third temperature compensation coefficient A_heat_Tc can be determined according to the indoor coil temperature T_incoil. Then, according to the first temperature compensation coefficient A_heat_Angle, the second temperature compensation coefficient A_heat_Fan, and the third temperature compensation coefficient A_heat_Tc, and substituting these temperature compensation coefficients into the calculation formula (1), the temperature compensation value A_heat can be determined.

[0085] If the startup time of the compressor exceeds the first preset time, and the air volume gear and the deflector position of the indoor fan 16 remain unchanged, and the duration exceeds the second preset time, at this time, it indicates that the operation of the compressor is relatively stable. For example, when the second preset time is T4 and T4>T3, the indoor coil corrected temperature Tc’ is re-determined in a preset manner, and the third temperature compensation coefficient A_heat_Tc is re-determined based on the re-determined indoor coil corrected temperature Tc’, and the temperature compensation value A_heat is re-determined based on the re-determined third temperature compensation coefficient A_heat_Tc to ensure the accuracy and adaptability of temperature control and better meet the user's temperature control requirements.

[0086] In an embodiment of the present invention, when re-determining the indoor coil corrected temperature Tc’ in a preset manner, the controller 71 is configured to: take the third preset time as the detection period, obtain the indoor coil temperature once every fourth preset time, and determine a first temperature value and a second temperature value from the obtained multiple indoor coil temperatures, where the first temperature value is the indoor coil temperature detected for the first time within the detection period, and the second temperature value is the indoor coil temperature detected for the last time within the detection period; re-determine the indoor coil corrected temperature based on the first temperature value and the second temperature value.

[0087] In the embodiment, re-determining the indoor coil corrected temperature Tc’ in a preset manner means that after the compressor operates relatively stably, taking the third preset time as the detection period, obtaining the indoor coil temperature once every fourth preset time, and determining a first temperature value and a second temperature value from the obtained multiple indoor coil temperatures. For example, the third preset time is 10 minutes and the fourth preset time is 1 minute. Within 10 minutes, the indoor coil temperature is obtained once every 1 minute, and ten indoor coil temperatures can be obtained, which are respectively denoted as T_incoil(0), T_incoil(1)...T_incoil(j), where j is a natural number greater than or equal to 0. Determine the first temperature value and the second temperature value from these 10 indoor coil temperatures, that is, take the indoor coil temperature detected for the first time as the first temperature value, and the indoor coil temperature detected for the last time as the second temperature value. In other words, within the first 10 minutes, the indoor coil temperature detected in the first minute is the first temperature value and is denoted as T_incoil(0), and the indoor coil temperature detected in the tenth minute is the second temperature value and is denoted as T_incoil(j). Then, the indoor coil corrected temperature Tc’ is re-determined according to the first temperature value T_incoil(0) and the second temperature value T_incoil(j), which can improve the accuracy of the indoor coil corrected temperature Tc’, and further improve the accuracy of determining the third temperature compensation coefficient A_heat_Tc.

[0088] In an embodiment of the present invention, when re - determining the indoor coil corrected temperature Tc' based on the first temperature value T_incoil(0) and the second temperature value T_incoil(j), the controller 71 is further configured to: determine the absolute value of the second difference between the first temperature value T_incoil(0) and the second temperature value T_incoil(j); when the absolute value of the second difference is greater than or equal to a second preset value, determine the indoor coil corrected temperature Tc' according to the second temperature value T_incoil(j), the first preset temperature Ts, and the first preset temperature critical value Tc; when the absolute value of the second difference is less than the second preset value, use the indoor coil temperature detected last in the previous detection period of the detection period as the indoor coil corrected temperature Tc'.

[0089] In the embodiment, when re - determining the indoor coil corrected temperature Tc' according to the first temperature value T_incoil(0) and the second temperature value T_incoil(j), the controller 71 obtains a second difference according to the first temperature value T_incoil(0) and the second temperature value T_incoil(j), and then determines the indoor coil corrected temperature Tc' according to the comparison result between the absolute value of the second difference and the second preset value.

[0090] Specifically, the second preset value is, for example, 5°C. When the absolute value of the second difference is greater than or equal to the second preset value, re - calculate the indoor coil corrected temperature Tc' according to the second temperature value T_incoil(j), the first preset temperature Ts, and the first preset temperature critical value Tc, that is, when │T_incoil(j)-T_incoil(0)│≥5°C, Tc' = T_incoil(j)-(T_s - T_c).

[0091] When the absolute value of the second difference is less than the second preset value, that is, when │T_incoil(j)-T_incoil(0)│<5°C, use the indoor coil temperature detected last in the previous detection period of the detection period as the indoor coil corrected temperature Tc'. It can be understood that if the absolute value of the second difference is less than the second preset value, that is, the temperature difference between the first temperature value T_incoil(0) and the second temperature value T_incoil(j) is small, and at this time the indoor coil temperature is in a relatively stable state, then the indoor coil temperature detected last in the previous detection period can be used as the indoor coil corrected temperature Tc'.

[0092] In an embodiment of the present invention, when determining the third temperature compensation coefficient A_heat_Tc according to the indoor coil corrected temperature Tc', the controller 71 is configured to: when the indoor coil corrected temperature Tc' does not exceed the first critical value, determine the first preset correction coefficient as the third temperature compensation coefficient A_heat_Tc; when the indoor coil corrected temperature Tc' exceeds the first critical value and does not exceed the second critical value, determine the first operation correction coefficient as the third temperature compensation coefficient A_heat_Tc, where the first operation correction coefficient is obtained according to the indoor coil corrected temperature Tc', the first calibration coefficient and the first calibration value; when the indoor coil corrected temperature Tc' exceeds the second critical value and does not exceed the third critical value, determine the second operation correction coefficient as the third temperature compensation coefficient A_heat_Tc, where the second operation correction coefficient is obtained according to the indoor coil corrected temperature Tc', the second calibration coefficient and the second calibration value; when the indoor coil corrected temperature Tc' exceeds the third critical value, determine the second preset correction coefficient as the third temperature compensation coefficient A_heat_Tc.

[0093] In the embodiment, for example, the first critical value is denoted as Tc1, the second critical value is denoted as Tc2, the third critical value is denoted as Tc3, the first preset correction coefficient is denoted as A_heat_Tc1, the first operation correction coefficient is denoted as A_heat_Tc2, the second operation correction coefficient is denoted as A_heat_Tc2', and the second preset correction coefficient is denoted as A_heat_Tc3.

[0094] Specifically, when the indoor coil corrected temperature Tc' does not exceed the first critical value Tc1, determine the first preset correction coefficient A_heat_Tc1 as the third temperature compensation coefficient A_heat_Tc, that is, when Tc'≤Tc1, then A_heat_Tc = A_heat_Tc1.

[0095] When the indoor coil corrected temperature Tc' exceeds the first critical value Tc1 and does not exceed the second critical value Tc2, determine the first operation correction coefficient A_heat_Tc2 as the third temperature compensation coefficient A_heat_Tc, that is, when Tc1 < Tc'≤Tc2, calculate the first operation correction coefficient A_heat_Tc2 according to the indoor coil corrected temperature Tc', the first calibration coefficient and the first calibration value. The first calibration coefficient is, for example, 0.2, and the first calibration value is, for example, -2. That is, the first operation correction coefficient A_heat_Tc2 = 0.2*Tc' - 2, and thus the third temperature compensation coefficient A_heat_Tc = A_heat_Tc2 = 0.2*Tc' - 2.

[0096] When the corrected indoor coil temperature Tc’ exceeds the second critical value Tc2 and does not exceed the third critical value Tc3, that is, when Tc2 < Tc’ ≤ Tc3, determine the second operation correction coefficient A_heat_Tc2’ as the third temperature compensation coefficient A_heat_Tc. Among them, the second operation correction coefficient A_heat_Tc2’ is obtained according to the corrected indoor coil temperature Tc’, the second calibration coefficient, and the second calibration value. The second calibration coefficient is, for example, 0.4, and the second calibration value is, for example, -11. Then A_heat_Tc2’ = 0.4 * Tc’ - 11, so as to obtain A_heat_Tc = A_heat_Tc2’ = 0.4 * Tc’ - 11.

[0097] When the corrected indoor coil temperature Tc’ exceeds the third critical value Tc3, determine the second preset correction coefficient A_heat_Tc3 as the third temperature compensation coefficient A_heat_Tc, that is, when Tc’ > Tc3, A_heat_Tc = A_heat_Tc3.

[0098] Thus, when the startup time of the compressor exceeds the first preset time, that is, when the compressor tends to be in a stable state, according to the comparison results of the first critical value Tc1, the second critical value Tc2, and the third critical value Tc3 with the corrected indoor coil temperature Tc’, an accurate third temperature compensation coefficient A_heat_Tc can be obtained, improving the accuracy of determining the third temperature compensation coefficient A_heat_Tc. Furthermore, the accuracy of determining the temperature compensation value A_heat is improved. Based on the accurate temperature compensation value A_heat, an accurate target temperature T 控 , and thus according to the target temperature T 控 dynamically adjust the indoor ambient temperature, which can meet the user's temperature control requirements and improve the heating effect of the air conditioner 10.

[0099] In an embodiment of the present invention, when determining the temperature compensation value A_heat according to the first temperature compensation coefficient A_heat_Angle, the second temperature compensation coefficient A_heat_Fan, and the third temperature compensation coefficient A_heat_Tc, the controller 71 is further configured to: obtain the change situation of the wind speed gear of the indoor fan 16; when the indoor fan 16 changes the wind speed gear in the first preset mode, when it is determined that the change of the wind speed gear of the indoor fan is completed, the wind speed gear obtained last during the change process of the wind speed gear of the indoor fan is determined as the target wind speed gear, and under the target wind speed gear, the first temperature compensation coefficient A_heat_Angle, the second temperature compensation coefficient A_heat_Fan, and the third temperature compensation coefficient A_heat_Tc are obtained again, so as to obtain the updated first temperature compensation coefficient, second temperature compensation coefficient, and third temperature compensation coefficient, wherein when the wind speed gear of the indoor fan no longer changes within the fifth preset time after the change of the wind speed gear of the indoor fan, it is determined that the change of the wind speed gear is completed; when the indoor fan 16 changes the wind speed gear in the second preset mode, the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient are updated every sixth preset time; in the first preset mode or the second preset mode, the temperature compensation value is re-determined according to the updated first temperature compensation coefficient, second temperature compensation coefficient, and third temperature compensation coefficient.

[0100] Specifically, when calculating the temperature compensation value A_heat, the controller 71 will dynamically adjust the temperature compensation coefficient according to the change of the wind speed gear of the indoor fan 16, so as to more accurately control the operating state of the air conditioner 10 and realize the dynamic adjustment of the indoor environmental temperature.

[0101] Specifically, obtain the change situation of the wind speed gear of the indoor fan 16. When the indoor fan 16 changes the wind speed gear in the first preset mode, the first preset mode can be understood as a non-automatic wind mode, and the user can dynamically adjust the wind speed gear according to his own needs. After the user manually adjusts the wind speed gear and the wind speed gear no longer changes within the fifth preset time, it is determined at this time that the change of the wind speed gear is completed, and the wind speed gear obtained last during the change process of the wind speed gear of the indoor fan is determined as the target wind speed gear, that is, the wind speed gear after the user's last adjustment is used as the target wind speed gear. Under the target wind speed gear, the first temperature compensation coefficient A_heat_Angle is obtained again according to the position of the air deflector, the second temperature compensation coefficient A_heat_Fan is obtained again according to the wind speed gear, and the third temperature compensation coefficient A_heat_Tc is obtained again according to the indoor coil temperature.

[0102] When the indoor fan changes the wind speed gear in the second preset mode, where the second preset mode can be understood as the automatic wind mode. In the automatic wind mode, the wind speed realizes the stepless speed regulation function, that is, the wind speed gear can be continuously adjusted to any other wind speed gear without the user manually adjusting the wind speed gear.

[0103] Specifically, in the second preset mode, the controller 71 updates the first temperature compensation coefficient A_heat_Angle, the second temperature compensation coefficient A_heat_Fan, and the third temperature compensation A_heat_Tc every sixth preset time. Thus, in the first preset mode or the second preset mode, the first temperature compensation coefficient A_heat_Angle, the second temperature compensation coefficient A_heat_Fan, and the third temperature compensation A_heat_Tc are all re-obtained according to the change of the wind speed gear. Then, the temperature compensation value A_heat is re-determined according to the updated first temperature compensation coefficient A_heat_Angle, the second temperature compensation coefficient A_heat_Fan, and the third temperature compensation A_heat_Tc. Therefore, the indoor environmental temperature is dynamically compensated according to the dynamically changing temperature compensation value A_heat, which improves the user's temperature control requirements, and further improves the heating effect and user experience of the air conditioner 10.

[0104] In an embodiment of the present invention, when determining the temperature compensation value A_heat according to the first temperature compensation coefficient A_heat_Angle, the second temperature compensation coefficient A_heat_Fan, and the third temperature compensation coefficient A_heat_Tc, the controller 71 is further configured to: obtain the position change situation of the air deflector 15; when the air deflector changes the air deflector position in the third preset mode, when it is determined that the position change of the air deflector is completed, determine the position of the air deflector obtained last time during the position change process of the air deflector as the target position, and at the target position, re-obtain the first temperature compensation coefficient A_heat_Angle, the second temperature compensation coefficient A_heat_Fan, and the third temperature compensation coefficient A_heat_Fan, to obtain the updated first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient. Wherein, when the position of the air deflector does not change within the seventh preset time after the position change of the air deflector, it is determined that the position change of the air deflector is completed; when the air deflector changes the air deflector position in the fourth preset mode, the first temperature compensation coefficient A_heat_Angle, the second temperature compensation coefficient A_heat_Fan, and the third temperature compensation coefficient A_heat_Fan are updated every eighth preset time; in the third preset mode or the fourth preset mode, the temperature compensation value is re-determined according to the updated first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient.

[0105] In an embodiment, when calculating the temperature compensation value A_heat, the controller 71 dynamically adjusts the temperature compensation coefficient according to the position change of the air deflector 15 to more accurately control the operating state of the air conditioner 10 and achieve dynamic adjustment of the indoor ambient temperature.

[0106] Specifically, the position change of the air deflector 15 is obtained. When the air deflector 15 changes its position in the third preset mode, where the third preset mode can be understood as a non-automatic adjustment mode, the user can dynamically adjust the position of the air deflector according to their own needs. After the user manually adjusts the position of the air deflector and the position of the air deflector does not change within the seventh preset time, it is determined that the position change of the air deflector is completed at this time, and the last obtained air deflector position during the position change of the air deflector is determined as the target position, that is, the air deflector position after the user's last adjustment is used as the target position. At the target position, the first temperature compensation coefficient A_heat_Angle is re-obtained according to the air deflector position, the second temperature compensation coefficient A_heat_Fan is re-obtained according to the wind speed gear, and the third temperature compensation coefficient A_heat_Tc is re-obtained according to the indoor coil temperature.

[0107] When the air deflector changes its position in the fourth preset mode, where the fourth preset mode can be understood as an automatic adjustment mode, in the automatic adjustment mode, there is no need for the user to manually adjust the position of the air deflector.

[0108] Specifically, in the fourth preset mode, the controller 71 updates the first temperature compensation coefficient A_heat_Angle, the second temperature compensation coefficient A_heat_Fan, and the third temperature compensation A_heat_Tc every eighth preset time. Thus, in the first preset mode or the second preset mode, the first temperature compensation coefficient A_heat_Angle, the second temperature compensation coefficient A_heat_Fan, and the third temperature compensation A_heat_Tc are all re-obtained according to the position change of the air deflector. Then, the temperature compensation value A_heat is re-determined according to the updated first temperature compensation coefficient A_heat_Angle, the second temperature compensation coefficient A_heat_Fan, and the third temperature compensation A_heat_Tc. Thus, the indoor ambient temperature is dynamically compensated according to the dynamically changing temperature compensation value A_heat, which improves the user's temperature control requirements, and further improves the heating effect and user experience of the air conditioner 10.

[0109] In an embodiment of the present invention, according to the temperature compensation value A_heat, the indoor return air temperature Tair, and the first preset temperature compensation value A 控制器 the target temperature T is obtained 控When, the controller 71 is further configured to: determine the state of the compressor, where the state of the compressor includes shutdown or restart after shutdown; determine a second preset temperature compensation value according to the state of the compressor; according to the temperature compensation value A_heat, the indoor return air temperature Tair, the first preset temperature compensation value A 控制器 and the second preset temperature compensation value to obtain the target temperature T 控 .

[0110] In an embodiment, when determining the target temperature T 控 , the state of the compressor will also have a certain impact on the accuracy of the target temperature T 控 . Therefore, determining the second preset temperature compensation value according to the state of the compressor and denoting it as A can improve the accuracy of the determination of the target temperature T 控 , and can also improve the controllability of the indoor environment temperature compensation, so as to meet the user's temperature requirements and improve the user's comfort experience.

[0111] Specifically, the state of the compressor includes shutdown or restart after shutdown. Therefore, after the compressor shuts down, the second temperature compensation value A is determined according to the shutdown state of the compressor. If the compressor needs to be restarted after shutting down for a period of time, the second preset temperature compensation value A will be determined according to the time of restart after the compressor shuts down. This can improve the accuracy of the determination of the second preset temperature compensation value A. When obtaining the target temperature T according to the temperature compensation value A_heat, the indoor return air temperature Tair, the first preset temperature compensation value A 控制器 and the second preset temperature compensation value 控 , a more accurate target temperature T adapted to the current state of the compressor can be obtained 控 , thereby effectively improving the user's comfort experience.

[0112] In an embodiment of the present invention, when determining the second preset temperature compensation value A according to the state of the compressor, the controller 71 is configured to: determine that the compressor is shutdown, and when the compressor is still in the shutdown state within the ninth preset time, determine the second preset temperature compensation value A according to the temperature compensation value corresponding before the compressor shuts down; when the time of restart after the compressor shuts down does not exceed the tenth preset time, determine the second preset temperature compensation value A according to the temperature compensation value corresponding before the compressor shuts down; when the time of restart after the compressor shuts down exceeds the eleventh preset time, then use the first calibrated compensation value as the second preset temperature compensation value A; when the time of restart after the compressor shuts down exceeds the twelfth preset time, then use the second calibrated compensation value as the second preset temperature compensation value A, where the tenth preset time is less than the eleventh preset time, and the eleventh preset time is less than the twelfth preset time.

[0113] Among them, it is possible that due to the completion of the heating compensation, the indoor environmental temperature reaches the target temperature, or the air conditioner 10 is directly turned off through the remote controller, or due to a failure of the air conditioner 10, the compressor stops operating.

[0114] In an embodiment, the second preset temperature compensation value A is determined based on the state of the compressor. After determining that the compressor stops operating, if the compressor remains in the stopped state within the ninth preset time, or the time when the compressor restarts after stopping does not exceed the tenth preset time, it can be understood that the compressor can restart within a short time after stopping, then the temperature compensation value corresponding to before the compressor stops can be used as the second temperature compensation value A.

[0115] If the time when the compressor restarts after stopping does not exceed the eleventh preset time, where the eleventh preset time is understood as a relatively long time compared to the tenth preset time, the first calibrated compensation value is used as the second temperature compensation value A. For example, the first calibrated compensation value is -1.0 °C.

[0116] If the time when the compressor restarts after stopping does not exceed the twelfth preset time, where the twelfth preset time can be understood as a relatively long period of time, in other words, the compressor still does not start within a long time after stopping, the second calibrated compensation value is used as the second temperature compensation value A. For example, the second calibrated compensation value is -1.5 °C.

[0117] In addition, if the air conditioner 10 is turned off, the second preset temperature compensation value A will take the temperature compensation value corresponding to before the compressor stops as the second preset temperature compensation value A for a relatively long period of time (such as 60 minutes). After 60 minutes, the compensation is cancelled, and the temperature compensation value corresponding to before the compressor stops is no longer used as the second preset temperature compensation value A.

[0118] Therefore, according to the state of the compressor, the second preset temperature compensation value A in the corresponding state can be determined, and then according to the temperature compensation value A_heat, the indoor return air temperature Tair, the first preset temperature compensation value A 控制器 and the second preset temperature compensation value, the target temperature T 控 is obtained, that is, T 控 = A_heat + Tair + A 控制器 + A, thereby improving the accuracy of the determination of the target temperature T 控 determination.

[0119] In an embodiment of the present invention, when compensating the indoor environmental temperature according to the target temperature T 控 the controller 71 is configured to: determine the target temperature T 控When the number of times of compensating the indoor ambient temperature exceeds once, and / or when the time for restarting the compressor after shutdown exceeds the tenth preset time, control the operating state of the air conditioner 10 so that the indoor ambient temperature changes at a preset temperature change rate until the indoor ambient temperature reaches the target temperature T 控 。

[0120] In the embodiment, the target temperature T is obtained 控 After that, during the process of dynamically compensating the indoor ambient temperature according to the target temperature T 控 It will not directly control the indoor ambient temperature to reach the target temperature T according to the temperature compensation value A_heat during the calculation process 控 , but it is necessary to judge the number of times of compensating the indoor ambient temperature for the target temperature T 控 , and / or the time for restarting the compressor after shutdown, and change slowly at a preset temperature change rate according to the judgment result

[0121] Specifically, if it is determined that the number of times of compensating the indoor ambient temperature for the target temperature T 控 exceeds once, and / or the time for restarting the compressor after shutdown exceeds the tenth preset time, the operating state of the air conditioner 10 will be controlled according to the target temperature, so that the indoor ambient temperature changes at a preset temperature change rate. Among them, the preset temperature change rate is, for example, to change 0.1 °C within 10 seconds, so that the indoor ambient temperature can relatively slowly increase or decrease the temperature according to the preset temperature change speed, and gradually reach the target temperature T through dynamic adjustment 控 。This will not make the indoor ambient temperature suddenly cold or hot and make the user feel uncomfortable, but will change slowly at a preset temperature change speed, which can improve the user experience and make the environment where the user is located more comfortable

[0122] According to the air conditioner 10 of an embodiment of the present invention, when it is determined that the air conditioner 10 operates in a heating mode, the controller 71 determines a first temperature compensation coefficient according to the current position of the air deflector obtained, and determines a second temperature compensation coefficient according to the current wind speed gear of the indoor fan obtained, and determines a third temperature compensation coefficient according to the indoor coil temperature. In this way, after the position of the air deflector, the wind speed gear, and the indoor coil temperature change, updated temperature compensation coefficients can be obtained. Then, a temperature compensation value is determined according to the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient. Since the temperature coefficients can be updated in real time, the temperature compensation value can also be updated in real time based on the temperature compensation coefficients updated in real time. Furthermore, a target temperature is obtained based on the temperature compensation value, the indoor return air temperature, and the first preset temperature compensation value. In this way, it can be ensured that when the temperature compensation value compensates insufficiently or less for the indoor return air temperature, the first preset temperature compensation value can assist the temperature compensation value to compensate the indoor return air temperature, so that a more accurate target temperature can be obtained. Thus, when controlling the operating state of the air conditioner 10 according to the target temperature, it can be ensured that the indoor environmental temperature reaches the target temperature, and the obtained indoor environmental temperature meets the user's requirements. In addition, the temperature compensation value is a dynamically changing value, which can continuously adjust the indoor environmental temperature, better meet the user's temperature control requirements, and also make the indoor environmental temperature distribution uniform, achieving a better heating effect and improving the user experience.

[0123] The following refers to Figure 4 Describe the control method of the air conditioner according to the embodiment of the present invention.

[0124] As Figure 4 shown, the control method of the air conditioner according to the embodiment of the present invention at least includes step S1-step S5.

[0125] Step S1, when it is determined that the air conditioner operates in a heating mode, obtain the current position of the air deflector, the current wind speed gear of the indoor fan, and the indoor coil temperature.

[0126] Step S2, determine a first temperature compensation coefficient according to the current position of the air deflector, and determine a second temperature compensation coefficient according to the current wind speed gear of the indoor fan, and determine a third temperature compensation coefficient according to the indoor coil temperature, wherein different positions of the air deflector correspond to different temperature compensation coefficients, and different indoor fan wind speed gears correspond to different temperature compensation coefficients.

[0127] Step S3, determine a temperature compensation value according to the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient.

[0128] Step S4, obtain a target temperature according to the temperature compensation value, the indoor return air temperature, and the first preset temperature compensation value.

[0129] Step S5, control the operating state of the air conditioner according to the target temperature so that the indoor environmental temperature reaches the target temperature.

[0130] In an embodiment of the present invention, when determining the third temperature compensation coefficient according to the indoor coil temperature, it includes: determining the corrected indoor coil temperature according to the indoor coil temperature; determining the third temperature compensation coefficient according to the corrected indoor coil temperature.

[0131] In an embodiment of the present invention, as Figure 5 shown, when determining the corrected indoor coil temperature according to the indoor coil temperature, it includes: determining the corrected indoor coil temperature according to the first difference between the first preset temperature and the first preset temperature critical value, where when the first difference is less than the first preset value, determining the indoor coil temperature as the corrected indoor coil temperature, and when the first difference is not less than the first preset value, determining the corrected indoor coil temperature according to the indoor coil temperature, the first preset temperature and the first preset temperature critical value.

[0132] In an embodiment of the present invention, as Figure 6 shown, when determining the temperature compensation value according to the first temperature compensation coefficient, the second temperature compensation coefficient and the third temperature compensation coefficient, it includes: determining that the compressor starts, and judging whether the start time of the compressor does not exceed the first preset time; if so, execute the steps of determining the first temperature compensation coefficient according to the current position of the air deflector, determining the second temperature compensation coefficient according to the current wind speed gear of the indoor fan, and determining the third temperature compensation coefficient according to the indoor coil temperature; if the start time of the compressor exceeds the first preset time, and the wind speed gear and the position of the air deflector of the indoor fan remain unchanged, and the duration exceeds the second preset time, then re-determine the corrected indoor coil temperature in a preset manner, and re-determine the third temperature compensation coefficient based on the re-determined corrected indoor coil temperature, and re-determine the temperature compensation value based on the re-determined third temperature compensation coefficient.

[0133] In an embodiment of the present invention, when re-determining the corrected indoor coil temperature in a preset manner, it includes: taking the third preset time as the detection period, obtaining the indoor coil temperature once every fourth preset time, and determining the first temperature value and the second temperature value from the obtained multiple indoor coil temperatures, where the first temperature value is the indoor coil temperature detected for the first time within the detection period, and the second temperature value is the indoor coil temperature detected for the last time within the detection period; re-determining the corrected indoor coil temperature based on the first temperature and the second temperature.

[0134] In an embodiment of the present invention, as Figure 7As shown, when re-determining the indoor coil correction temperature based on the first temperature and the second temperature, it includes: determining the absolute value of the second difference between the first temperature and the second temperature; when the absolute value of the second difference is greater than or equal to the second preset value, determining the indoor coil correction temperature according to the second temperature value, the first preset temperature, and the first preset temperature critical value; when the absolute value of the second difference is less than the second preset value, using the indoor coil temperature detected last time in the previous detection period of the detection period as the indoor coil correction temperature.

[0135] In an embodiment of the present invention, as Figure 8 shown, when determining the third temperature compensation coefficient according to the indoor coil correction temperature, it includes: when the indoor coil correction temperature does not exceed the first critical value, determining the first preset correction coefficient as the third temperature compensation coefficient; when the indoor coil correction temperature exceeds the first critical value and does not exceed the second critical value, determining the first operation correction coefficient as the third temperature compensation coefficient, where the first operation correction coefficient is obtained according to the indoor coil correction temperature, the first calibration coefficient, and the first calibration value; when the indoor coil correction temperature exceeds the second critical value and does not exceed the third critical value, determining the second operation correction coefficient as the third temperature compensation coefficient, where the second operation correction coefficient is obtained according to the indoor coil correction temperature, the second calibration coefficient, and the second calibration value; when the indoor coil correction temperature exceeds the third critical value, determining the second preset correction coefficient as the third temperature compensation coefficient.

[0136] In an embodiment of the present invention, when determining the temperature compensation value according to the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient, it includes: obtaining the change situation of the wind speed gear of the indoor fan; when the indoor fan changes the wind speed gear in the first preset mode, when it is determined that the change of the wind speed gear of the indoor fan is completed, determining the wind speed gear obtained last time during the change process of the wind speed gear of the indoor fan as the target wind speed gear, and re-obtaining the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient under the target wind speed gear to obtain the updated first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient, where when the wind speed gear of the indoor fan does not change within the fifth preset time after the change of the wind speed gear, it is determined that the change of the wind speed gear is completed; when the indoor fan changes the wind speed gear in the second preset mode, updating the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient every sixth preset time; in the first preset mode or the second preset mode, re-determining the temperature compensation value according to the updated first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient.

[0137] In an embodiment of the present invention, when determining a temperature compensation value according to a first temperature compensation coefficient, a second temperature compensation coefficient, and a third temperature compensation coefficient, the method includes: obtaining the position change condition of the air deflector; when the air deflector changes its position in a third preset mode, when it is determined that the position change of the air deflector is completed, the position of the air deflector obtained last time during the position change process of the air deflector is determined as the target position, and at the target position, the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient are obtained again to obtain updated first, second, and third temperature compensation coefficients, where when the position of the air deflector does not change within a seventh preset time after the position change of the air deflector, it is determined that the position change of the air deflector is completed; when the air deflector changes its position in a fourth preset mode, the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient are updated every eighth preset time; in the third preset mode or the fourth preset mode, the temperature compensation value is re-determined according to the updated first temperature compensation coefficient, second temperature compensation coefficient, and third temperature compensation coefficient.

[0138] In an embodiment of the present invention, when obtaining a target temperature according to a temperature compensation value, an indoor return air temperature, and a first preset temperature compensation value, the method includes: determining the state of the compressor, where the state of the compressor includes shutdown or restart after shutdown; determining a second preset temperature compensation value according to the state of the compressor; obtaining the target temperature according to the temperature compensation value, the indoor return air temperature, the first preset temperature compensation value, and the second preset temperature compensation value.

[0139] In an embodiment of the present invention, when determining the second preset temperature compensation value according to the state of the compressor, the method includes: when it is determined that the compressor is shutdown and remains in the shutdown state within a ninth preset time, determining the second preset temperature compensation value according to the temperature compensation value corresponding before the compressor shutdown; when the restart time after the compressor shutdown does not exceed a tenth preset time, determining the second preset temperature compensation value according to the temperature compensation value corresponding before the compressor shutdown; when the restart time after the compressor shutdown exceeds an eleventh preset time, using the first calibrated compensation value as the second preset temperature compensation value; when the restart time after the compressor shutdown exceeds a twelfth preset time, using the second calibrated compensation value as the second preset temperature compensation value, where the tenth preset time is less than the eleventh preset time, and the eleventh preset time is less than the twelfth preset time.

[0140] In an embodiment of the present invention, when compensating the indoor environment temperature according to the target temperature, the controller is configured to: when it is determined that the number of times of compensating the indoor environment temperature by the target temperature exceeds once, and / or the startup time after the compressor shutdown exceeds the tenth preset time, control the operating state of the air conditioner so that the indoor environment temperature changes at a preset temperature change rate until the indoor environment temperature reaches the target temperature.

[0141] According to the control method of an air conditioner according to an embodiment of the present invention, when it is determined that the air conditioner operates in a heating mode, a first temperature compensation coefficient is determined according to the current position of the air deflector obtained, a second temperature compensation coefficient is determined according to the current wind speed gear of the indoor fan obtained, and a third temperature compensation coefficient is determined according to the indoor coil temperature. In this way, after the position of the air deflector, the wind speed gear, and the indoor coil temperature change, updated temperature compensation coefficients can be obtained. Then, a temperature compensation value is determined according to the first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient. Since the temperature coefficients can be updated in real time, the temperature compensation value can also be updated in real time based on the temperature compensation coefficients updated in real time. Furthermore, a target temperature is obtained based on the temperature compensation value, the indoor return air temperature, and a first preset temperature compensation value. In this way, when the temperature compensation value is insufficient or too small for compensating the indoor return air temperature, the first preset temperature compensation value can assist the temperature compensation value to compensate the indoor return air temperature, so that a more accurate target temperature can be obtained. Thus, when controlling the operating state of the air conditioner according to the target temperature, it can be ensured that the indoor environmental temperature reaches the target temperature, and the obtained indoor environmental temperature meets the user's requirements. In addition, the temperature compensation value is a dynamically changing value, which can continuously adjust the indoor environmental temperature, better meet the user's temperature control requirements, and also make the indoor environmental temperature distribution uniform, achieving a better heating effect and improving the user experience.

[0142] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" etc. mean 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 invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0143] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air conditioner, characterized in that: include: A refrigerant circulation loop, wherein the refrigerant performs a refrigeration cycle in a loop consisting of a compressor, a condenser, an expansion valve, and an evaporator, wherein one of the condenser and the evaporator is an outdoor heat exchanger and the other is an indoor heat exchanger; Indoor ambient temperature sensor, used to detect indoor ambient temperature; Indoor coil temperature sensor, used to detect indoor coil temperature; Indoor return air temperature sensor, used to detect indoor return air temperature; Air guide plate, used to adjust the air outlet direction; An indoor fan, used to drive the indoor air to pass through the indoor heat exchanger by rotating, so that the refrigerant and the indoor air can exchange heat; A controller, the controller being configured to: When determining that the air conditioner is operating in a heating mode, obtaining a current position of the air guide plate, a current wind speed gear of the indoor fan, and a temperature of the indoor coil; Determine a first temperature compensation coefficient according to the current position of the air guide plate, determine a second temperature compensation coefficient according to the current wind speed gear of the indoor fan, and determine a third temperature compensation coefficient according to the indoor coil temperature, wherein different air guide plate positions correspond to different temperature compensation coefficients, and different indoor fan wind speed gears correspond to different temperature compensation coefficients; determining a temperature compensation value according to the first temperature compensation coefficient, the second temperature compensation coefficient and the third temperature compensation coefficient; Obtaining a target temperature according to the temperature compensation value, the indoor return air temperature and a first preset temperature compensation value; The operating state of the air conditioner is controlled according to the target temperature so that the indoor ambient temperature reaches the target temperature.

2. The air conditioner according to claim 1, characterized in that: When determining the third temperature compensation coefficient according to the indoor coil temperature, the controller is configured to: determining a corrected indoor coil temperature according to the indoor coil temperature; The third temperature compensation coefficient is determined according to the indoor coil corrected temperature.

3. The air conditioner according to claim 2, characterized in that: When determining the indoor coil correction temperature according to the indoor coil temperature, the controller is configured to: The indoor coil correction temperature is determined according to a first difference between a first preset temperature and a first preset temperature critical value, wherein when the first difference is less than the first preset value, the indoor coil temperature is determined to be the indoor coil correction temperature, and when the first difference is not less than the first preset value, the indoor coil correction temperature is determined according to the indoor coil temperature, the first preset temperature and the first preset temperature critical value.

4. The air conditioner according to claim 3, characterized in that: When determining the temperature compensation value according to the first temperature compensation coefficient, the second temperature compensation coefficient and the third temperature compensation coefficient, the controller is configured to: Determining that the compressor is started, and judging whether the start-up time of the compressor does not exceed a first preset time; If yes, the steps of determining a first temperature compensation coefficient according to the current position of the air guide plate, determining a second temperature compensation coefficient according to the current wind speed gear of the indoor fan, and determining a third temperature compensation coefficient according to the indoor coil temperature are performed; If the start-up time of the compressor exceeds the first preset time, and the wind speed gear and the position of the air guide plate of the indoor fan remain unchanged, and the duration exceeds the second preset time, the indoor coil correction temperature is redetermined according to the preset method, and the third temperature compensation coefficient is redetermined based on the redetermined indoor coil correction temperature, and the temperature compensation value is redetermined based on the redetermined third temperature compensation coefficient.

5. The air conditioner according to claim 4, characterized in that: When re-determining the indoor coil correction temperature according to a preset method, the controller is configured to: Taking the third preset time as the detection cycle, obtaining the indoor coil temperature once at a fourth preset time interval, and determining a first temperature value and a second temperature value from the obtained multiple indoor coil temperatures, wherein the first temperature value is the indoor coil temperature detected for the first time within the detection cycle, and the second temperature value is the indoor coil temperature detected for the last time within the detection cycle; The indoor coil correction temperature is re-determined based on the first temperature value and the second temperature value.

6. The air conditioner according to claim 5, characterized in that: When re-determining the indoor coil correction temperature based on the first temperature value and the second temperature value, the controller is further configured to: determining an absolute value of a second difference between the first temperature value and the second temperature value; When the absolute value of the second difference is greater than or equal to a second preset value, determining the indoor coil correction temperature according to the second temperature value, the first preset temperature and the first preset temperature critical value; When the absolute value of the second difference is less than the second preset value, the indoor coil temperature detected last time in the previous detection cycle of the detection cycle is used as the indoor coil correction temperature.

7. The air conditioner according to claim 2, characterized in that: When determining the third temperature compensation coefficient according to the indoor coil corrected temperature, the controller is configured as follows: When the indoor coil correction temperature does not exceed the first critical value, determining the first preset correction coefficient as the third temperature compensation coefficient; When the indoor coil correction temperature exceeds the first critical value and does not exceed the second critical value, determining the first operation correction coefficient as the third temperature compensation coefficient, wherein the first operation correction coefficient is obtained according to the indoor coil correction temperature, the first calibration coefficient and the first calibration value; When the indoor coil correction temperature exceeds the second critical value and does not exceed the third critical value, determining a second operation correction coefficient as the third temperature compensation coefficient, wherein the second operation correction coefficient is obtained according to the indoor coil correction temperature, a second calibration coefficient and a second calibration value; When the indoor coil corrected temperature exceeds the third critical value, the second preset correction coefficient is determined to be the third temperature compensation coefficient.

8. The air conditioner according to claim 1, characterized in that: When determining the temperature compensation value according to the first temperature compensation coefficient, the second temperature compensation coefficient and the third temperature compensation coefficient, the controller is further configured to: Obtaining the wind speed gear change of the indoor fan; When the indoor fan changes the wind speed gear in the first preset mode, when it is determined that the wind speed gear change of the indoor fan is completed, the wind speed gear last acquired during the wind speed gear change of the indoor fan is determined as the target wind speed gear, and under the target wind speed gear, the first temperature compensation coefficient, the second temperature compensation coefficient and the third temperature compensation coefficient are re-acquired to obtain the updated first temperature compensation coefficient, the second temperature compensation coefficient and the third temperature compensation coefficient, wherein, when the wind speed gear of the indoor fan does not change within the fifth preset time after the wind speed gear is changed, it is determined that the wind speed gear change is completed; When the indoor fan changes the wind speed level in the second preset mode, the first temperature compensation coefficient, the second temperature compensation coefficient and the third temperature compensation coefficient are updated once every sixth preset time interval; In the first preset mode or the second preset mode, the temperature compensation value is re-determined according to the updated first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient.

9. The air conditioner according to claim 1, characterized in that: When determining the temperature compensation value according to the first temperature compensation coefficient, the second temperature compensation coefficient and the third temperature compensation coefficient, the controller is further configured to: Obtaining a position change of the air guide plate; When the air deflector changes its position in the third preset mode, when it is determined that the position change of the air deflector is completed, the position of the air deflector acquired last time during the change of the position of the air deflector is determined as the target position, and under the target position, the first temperature compensation coefficient, the second temperature compensation coefficient and the third temperature compensation coefficient are reacquired to obtain updated first temperature compensation coefficient, second temperature compensation coefficient and third temperature compensation coefficient, wherein, when the position of the air deflector does not change within a seventh preset time after the change, it is determined that the position change of the air deflector is completed; When the air deflector changes its position in the fourth preset mode, the first temperature compensation coefficient, the second temperature compensation coefficient and the third temperature compensation coefficient are updated once every eighth preset time; In the third preset mode or the fourth preset mode, the temperature compensation value is re-determined according to the updated first temperature compensation coefficient, the second temperature compensation coefficient, and the third temperature compensation coefficient.

10. The air conditioner according to claim 1, characterized in that: When the target temperature is obtained according to the temperature compensation value, the indoor return air temperature and the first preset temperature compensation value, the controller is further configured to: Determining the state of the compressor, wherein the state of the compressor includes shutting down or restarting after shutting down; determining a second preset temperature compensation value according to the state of the compressor; The target temperature is obtained according to the temperature compensation value, the indoor return air temperature, the first preset temperature compensation value and the second preset temperature compensation value.

11. The air conditioner according to claim 10, characterized in that: When determining the second preset temperature compensation value according to the state of the compressor, the controller is configured to: When it is determined that the compressor is stopped and the compressor is still in the stopped state within a ninth preset time, determining the second preset temperature compensation value according to the temperature compensation value corresponding to before the compressor is stopped; When the time from the compressor being stopped to the time of being restarted does not exceed the tenth preset time, determining the second preset temperature compensation value according to the temperature compensation value corresponding to the compressor before being stopped; When the time from the compressor being stopped to being restarted exceeds an eleventh preset time, the first calibration compensation value is used as the second preset temperature compensation value; When the time from the compressor being shut down to being restarted exceeds the twelfth preset time, the second calibration compensation value is used as the second preset temperature compensation value, wherein the tenth preset time is less than the eleventh preset time, and the eleventh preset time is less than the twelfth preset time.

12. The air conditioner according to claim 11, characterized in that: When compensating the indoor ambient temperature according to the target temperature, the controller is configured to: When it is determined that the target temperature compensates the indoor ambient temperature more than once, and / or the startup time after the compressor stops exceeds the tenth preset time, the operating state of the air conditioner is controlled so that the indoor ambient temperature changes at a preset temperature change rate until the indoor ambient temperature reaches the target temperature.

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