Air conditioner control method

Abstract

The present invention relates to the field of air conditioning technology, and specifically provides a method for controlling an air conditioner, aiming to solve the problem in the prior art that the air conditioner cannot heat in time under ultra-low temperature environment. To this end, the control method of the present invention comprises: when the air conditioner is in heating mode, obtaining the outdoor temperature T 外 and indoor temperature T 内 , according to the outdoor temperature T 外 Determine the speed S of the outdoor fan 外 , according to the indoor temperature T 内 and outdoor temperature T 外 Determine the speed S of the indoor fan 内 , based on the outdoor fan speed S 外 and the speed of the indoor fan S 内 , determine the operating speed S of the outdoor fan 外运 and the operating speed of the indoor fan S 内运 The present invention is based on the outdoor temperature T 外 and indoor temperature T 内 To determine the operating speed S of the outdoor fan 外运 and the operating speed of the indoor fan S 内运 , which can more finely control the operating speed of the outdoor fan and indoor fan, and improve the heating performance of the air conditioner.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular provides a control method for an air conditioner. Background Art

[0002] As people's living standards improve, air conditioners are gaining popularity due to their ability to regulate indoor air conditions and enhance indoor comfort. Split-type air conditioners, for example, typically consist of an indoor unit and an outdoor unit. The outdoor unit primarily includes a compressor, an outdoor fan, and an outdoor heat exchanger, while the indoor unit primarily includes an indoor fan and an indoor heat exchanger. Driven by the compressor, the refrigerant circulates between the outdoor and indoor heat exchangers. In heating mode, the indoor fan operates to heat the indoor air with the refrigerant in the indoor heat exchanger, achieving the desired heating effect. The outdoor fan, in turn, operates to heat the refrigerant in the outdoor heat exchanger with the air in the outside environment, absorbing heat from the environment and providing heat to the interior.

[0003] Currently, the outdoor fan speed is typically determined by the difference between the indoor temperature and the set temperature, while the indoor fan speed is typically controlled based on factors such as air volume or wind speed. However, in ultra-low temperature environments, this control method often fails to meet regulatory requirements and fails to raise the indoor temperature in a timely manner, resulting in a poor user experience.

[0004] Accordingly, this field requires a new technical solution to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve one of the above technical problems, that is, to solve the problem in the prior art that the air conditioner cannot heat in time under ultra-low temperature environment.

[0006] The present invention provides a control method for an air conditioner, wherein the air conditioner includes an indoor unit and an outdoor unit, wherein the indoor unit includes an indoor fan and the outdoor unit includes an outdoor fan. The control method comprises: when the air conditioner is in a heating mode, obtaining an outdoor temperature T 外 and indoor temperature T 内 According to the outdoor temperature T 外 Determine the speed S of the outdoor fan 外 According to the indoor temperature T 内 and the outdoor temperature T 外 Determine the speed S of the indoor fan 内 Based on the speed S of the outdoor fan 外 and the speed S of the indoor fan 内 , determine the operating speed S of the outdoor fan 外运 and the operating speed S of the indoor fan 内运 .

[0007] In the preferred technical solution of the above control method, "according to the outdoor temperature T 外 Determine the speed S of the outdoor fan 外 The steps of " specifically include: comparing the outdoor temperature T 外 Based on the comparison result, the speed S of the outdoor fan is determined. 外 .

[0008] In the preferred technical solution of the above control method, "based on the comparison result, determine the speed S of the outdoor fan 外 The steps specifically include: if the outdoor temperature T 外 If the temperature is lower than the first preset temperature T1, the speed S of the outdoor fan is determined based on the following formula: 外 :S 外 =S 外机预设 +K1(T1-T 外 ) Where K1 is the first temperature coefficient, S 外机预设 is the preset speed of the outdoor fan.

[0009] In the preferred technical solution of the above control method, "according to the indoor temperature T 内 and outdoor temperature T 外 Determine the speed S of the indoor fan 内 The steps of " specifically include: judging the indoor temperature T 内 Is it lower than the second preset temperature T2? If the indoor temperature T 内 is less than the second preset temperature T2, the speed S of the indoor fan is determined based on the following formula: 内 :S 内 =S 内机预设 -K2(T1-T 外 )-K3(T2-T 内 ) Where K2 is the second temperature coefficient, K3 is the third temperature coefficient, S 内机预设 is the preset speed of the indoor fan; if the indoor temperature T 内 is greater than or equal to the second preset temperature T2, then further determine the indoor temperature T 内 Is it lower than the third preset temperature T3? Based on the first judgment result and the outdoor temperature T 外 , determine the speed S of the indoor fan 内 ; Wherein, the third preset temperature T3 is greater than the second preset temperature T2.

[0010] In the preferred technical solution of the above control method, "based on the first judgment result and the outdoor temperature T 外 , determine the speed S of the indoor fan 内 The steps specifically include: if the indoor temperature T内 If the temperature is lower than the third preset temperature T3, the speed S of the indoor fan is determined based on the following formula: 内 :S 内 =S 内机预设 -K4(T1-T 外 ) Where K4 is the fourth temperature coefficient, S 内机预设 is the preset speed of the indoor fan; if the indoor temperature T 内 If the temperature is greater than or equal to the third preset temperature T3, the preset speed S of the indoor fan is set to 内机预设 Determined as the speed S of the indoor fan 内 .

[0011] In the preferred technical solution of the above control method, "based on the speed S of the outdoor fan 外 and the speed S of the indoor fan 内 , determine the operating speed S of the outdoor fan 外运 and the operating speed S of the indoor fan 内运 The steps of " specifically include: determining the speed S of the outdoor fan 外 Is it greater than or equal to the maximum speed S1 of the outdoor unit and the speed S of the indoor fan? 内 Is it less than or equal to the minimum speed of the indoor unit S2? If the speed of the outdoor fan S 外 Greater than or equal to the maximum speed S1 of the outdoor unit and the speed S of the indoor fan 内 If the maximum speed of the outdoor unit S1 is less than or equal to the minimum speed of the indoor unit S2, the maximum speed of the outdoor unit S1 is determined as the operating speed of the outdoor fan S 外运 , determine the minimum speed S2 of the indoor unit as the operating speed S of the indoor fan 内运 If the speed of the outdoor fan S 外 Less than the maximum speed S1 of the outdoor unit and the speed S of the indoor fan 内 If the speed of the outdoor fan is greater than the minimum speed S2 of the indoor unit, the speed of the outdoor fan is increased to S 外 Determined as the operating speed S of the outdoor fan 外运 , the speed of the indoor fan S 内 Determined as the operating speed S of the indoor fan 内运 .

[0012] In the preferred technical solution of the above control method, "based on the comparison result, determine the speed S of the outdoor fan 外 The steps specifically include: if the outdoor temperature T 外 If the temperature is greater than or equal to the first preset temperature T1, the preset speed S of the outdoor fan is set to 外机预设 Determined as the rotation speed Soutside of the outdoor fan.

[0013] In the preferred technical solution of the above control method, "according to the indoor temperature T 内 and outdoor temperature T 外 Determine the speed S of the indoor fan 内 The steps of " specifically include: determining the indoor temperature T 内 Is it lower than the fourth preset temperature T4? Based on the second judgment result and the indoor temperature T 内 , determine the speed S of the indoor fan 内 .

[0014] In the preferred technical solution of the above control method, "based on the second judgment result and the indoor temperature T 内 , determine the speed S of the indoor fan 内 The steps specifically include: if the indoor temperature T 内 If the temperature is lower than the fourth preset temperature T4, the speed S of the indoor fan is determined based on the following formula: 内 :S 内 =S 内机预设 -K5(T4-T 内 ) Where K5 is the fifth temperature coefficient, S 内机预设 is the preset speed of the indoor fan; if the indoor temperature T 内 If the temperature is greater than or equal to the fourth preset temperature T4, the preset speed S of the indoor fan is set to 内机预设 Determined as the speed S of the indoor fan 内 .

[0015] In the preferred technical solution of the above control method, "based on the speed S of the outdoor fan 外 and the speed S of the indoor fan 内 , determine the operating speed S of the outdoor fan 外运 and the operating speed S of the indoor fan 内运 The steps of " specifically include: setting the speed S of the outdoor fan to 外 Determined as the operating speed S of the outdoor fan 外运 ; Determine the speed S of the indoor fan 内 Is it less than or equal to the minimum speed of the indoor unit S2? If the speed of the indoor fan S 内 If the minimum speed of the indoor unit is less than or equal to S2, the minimum speed of the indoor unit S2 is determined as the operating speed of the indoor fan S 内运 If the speed of the indoor fan S 内 If the speed of the indoor fan is greater than the minimum speed S2, the speed of the indoor fan is increased to S 内 Determined as the operating speed S of the indoor fan 内运 .

[0016] In the technical solution of the present invention, the control method of the present invention includes: when the air conditioner is in heating mode, obtaining the outdoor temperature T 外 and indoor temperature T 内 , according to the outdoor temperature T 外 Determine the speed S of the outdoor fan 外 , according to the indoor temperature T 内 and outdoor temperature T 外 Determine the speed S of the indoor fan 内 , based on the outdoor fan speed S 外 and the speed of the indoor fan S 内 , determine the operating speed S of the outdoor fan 外运 and the operating speed of the indoor fan S 内运 Through this control method, it is possible to adjust the temperature according to the outdoor temperature T 外 and indoor temperature T 内 To determine the operating speed S of the outdoor fan 外运 and the operating speed of the indoor fan S 内运 , which can more finely control the operating speed of the outdoor fan and indoor fan, improve the heating performance of the air conditioner and enhance the user experience.

[0017] Furthermore, “according to the outdoor temperature T 外 Determine the speed S of the outdoor fan 外 The steps of " specifically include: comparing the outdoor temperature T 外 Based on the comparison result, the speed S of the outdoor fan is determined. 外 This can be based on the outdoor temperature T 外 The size of the outdoor fan determines the speed S 外 , so that the speed of the outdoor fan S 外 and outdoor temperature T 外 Adapt to it, so that it can better absorb heat from the outside and ensure the stable operation of the air conditioner.

[0018] If the outdoor temperature T 外 is lower than the first preset temperature T1, indicating that the outdoor temperature is relatively low. At this time, based on the formula S 外 =S 外机预设 +K1(T1-T 外 ) to determine the speed S of the outdoor fan 外 , thus determining the speed S of the outdoor fan 外 The speed is higher than the preset speed of the outdoor fan, which can speed up the heat exchange with the outdoor environment, better absorb heat, and improve the heating performance of the air conditioner.

[0019] Further, determine the indoor temperature T 内 Is it lower than the second preset temperature T2? If the indoor temperature T内 If the indoor temperature is lower than the second preset temperature T2, it means that the indoor temperature is low. 内 =S 内机预设 -K2(T1-T 外 )-K3(T2-T 内 ) to determine the speed S of the indoor fan 内 , thus determining the speed S of the indoor fan 内 Lower than the preset speed of the indoor fan, through the slower speed S of the indoor fan 内 To increase the air outlet temperature and prevent user discomfort caused by too low air outlet temperature.

[0020] If the indoor temperature T 内 is greater than or equal to the second preset temperature T2, then further determine the indoor temperature T 内 Is it lower than the third preset temperature T3? If the indoor temperature T 内 If the temperature is lower than the third preset temperature T3, it means that the indoor temperature is still relatively low. 内 =S 内机预设 -K4(T1-T 外 ) to determine the speed S of the indoor fan 内 When the heating capacity is the same, the lower the indoor fan speed, the higher the outlet air temperature, but the heat exchange efficiency will also decrease. Therefore, by running the indoor fan at a speed slightly lower than the preset indoor fan speed, the outlet air temperature requirement can be met while ensuring heat exchange efficiency, thus improving the heating performance of the air conditioner.

[0021] If the indoor temperature T 内 is greater than or equal to the third preset temperature T3, indicating that the indoor temperature T 内 Slightly lower, closer to the human body's comfortable temperature, in order to prevent the air outlet temperature from being too high, causing the indoor temperature to rise rapidly, thereby causing the user to feel uncomfortable, at this time the preset speed of the indoor fan S 内机预设 Determined as the speed S of the indoor fan 内 This can also meet the heating needs, while also improving the heat exchange efficiency and improving the heating performance of the air conditioner.

[0022] After determining the speed S of the outdoor fan 外 and the speed of the indoor fan S 内 Afterwards, the speed S of the outdoor fan is determined. 外 Is it greater than or equal to the maximum speed S1 of the outdoor unit and the speed S of the indoor fan? 内 Is it less than or equal to the minimum speed of the indoor unit S2? If the speed of the outdoor fan S 外 Greater than or equal to the maximum speed of the outdoor unit S1, the speed of the indoor fan S 内Less than or equal to the minimum speed S2 of the indoor unit, in order to ensure the normal operation of the outdoor fan and the indoor fan, the maximum speed S1 of the outdoor unit is determined as the operating speed S of the outdoor fan. 外运 , determine the minimum speed S2 of the indoor unit as the operating speed S of the indoor fan 内运 If the speed of the outdoor fan is S 外 Less than the maximum speed of the outdoor unit S1, the speed of the indoor fan S 内 If the speed is greater than the minimum speed S2 of the indoor unit, the speed of the outdoor fan S 外 Determined as the operating speed S of the outdoor fan 外运 , set the speed of the indoor fan to S 内 Determined as the operating speed S of the indoor fan 内运 Through this control method, the operating speed of the outdoor fan and indoor fan can be controlled more finely, ensuring the stable operation of the outdoor fan and indoor fan, improving the heating performance of the air conditioner, and enhancing the user experience.

[0023] If the outdoor temperature T 外 If the temperature is greater than or equal to the first preset temperature T1, it means that the outdoor temperature is not very low. At this time, the preset speed of the outdoor fan is determined as the speed of the outdoor fan S 外 , that is, controlling the outdoor fan to run at a preset speed, so as to meet the heat exchange requirements.

[0024] Further, determine the indoor temperature T 内 Is it lower than the fourth preset temperature T4? If the indoor temperature T 内 If the temperature is lower than the fourth preset temperature T4, it means that the indoor temperature is low. 内 =S 内机预设 -K5(T4-T 内 ) to determine the speed S of the indoor fan 内 , thus determining the speed S of the indoor fan 内 Lower than the preset speed of the indoor fan, through the slower speed S of the indoor fan 内 To increase the air outlet temperature and avoid user discomfort caused by too low air outlet temperature.

[0025] If the indoor temperature T 内 If the temperature is greater than or equal to the fourth preset temperature T4, it means that the indoor temperature is not very low. At this time, the preset speed of the indoor fan S 内机预设 Determined as the speed S of the indoor fan 内 At this speed, it can output enough heating capacity to the indoor space to meet the heating needs.

[0026] After determining the speed S of the outdoor fan 外 and the speed of the indoor fan S 内 Afterwards, due to the outdoor temperature T外 When the temperature is greater than or equal to the first preset temperature T1, the speed of the outdoor fan S 外 is the preset speed of the outdoor fan, that is, the speed of the outdoor fan S 外 There is no risk of exceeding the maximum speed S1 of the outdoor unit. In this case, the speed of the outdoor fan S 外 Determined as the operating speed S of the outdoor fan 外运 . Determine the speed S of the indoor fan 内 Is it less than or equal to the minimum speed of the indoor unit S2? If the speed of the indoor fan S 内 If the minimum speed of the indoor unit is less than or equal to S2, the minimum speed of the indoor unit S2 is determined as the operating speed of the indoor fan S 内运 If the speed of the indoor fan is S 内 If the speed is greater than the minimum speed S2 of the indoor unit, the speed of the indoor fan S 内 Determined as the operating speed S of the indoor fan 内运 This control method allows for more refined control of the operating speeds of the outdoor and indoor fans, ensuring their stable operation, improving the heating performance of the air conditioner, and enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The following describes the control method of the air conditioner of the present invention by taking a wall-mounted air conditioner as an example and combining the accompanying drawings, in which:

[0028] Figure 1 This is a general flow chart of a control method for a wall-mounted air conditioner according to an embodiment of the present invention;

[0029] Figure 2 This is an embodiment of the present invention based on the outdoor temperature T 外 Determine the speed S of the outdoor fan 外 Control flow diagram of

[0030] Figure 3 is the outdoor temperature T of an embodiment of the present invention 外 When the indoor temperature is lower than the first preset temperature T1, 内 Determine the speed S of the indoor fan 内 Control flow diagram of

[0031] Figure 4 The speed S of the outdoor fan determined based on S200 to S202 in one embodiment of the present invention is 外 , and the speed S of the indoor fan determined from S300 to S306 内 Determine the operating speed S of the outdoor fan 外运 and the operating speed of the indoor fan S 内运 Control flow diagram of

[0032] Figure 5 is the outdoor temperature T of an embodiment of the present invention 外 When the temperature is greater than or equal to the first preset temperature T1, the indoor temperature T 内 Determine the speed S of the indoor fan 内 Control flow diagram of

[0033] Figure 6 The speed S of the indoor fan determined based on S500 to S504 in one embodiment of the present invention is 内 Determine the operating speed S of the indoor fan 内运 The control flow diagram of . DETAILED DESCRIPTION

[0034] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely intended to illustrate the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Although this embodiment is described using a wall-mounted air conditioner as an example, it can also be applied to indoor units of other types of air conditioners, such as ceiling-mounted air conditioners and cabinet-type air conditioners.

[0035] It should be noted that, in the description of the present invention, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] At present, the speed of the outdoor fan is usually determined by the difference between the indoor temperature and the set temperature, and the speed of the indoor fan is usually controlled based on factors such as air volume or wind speed. Such a control method usually cannot meet the regulation requirements in ultra-low temperature environments and cannot increase the indoor temperature in time, resulting in a poor user experience. Therefore, the present invention is based on the outdoor temperature T 外 Determine the speed S of the outdoor fan 外 , according to the indoor temperature T 内 and outdoor temperature T 外 Determine the speed S of the indoor fan 内 , then based on the speed S of the outdoor fan 外 and the speed of the indoor fan S 内 Determine the operating speed S of the outdoor fan 外运 and the operating speed of the indoor fan S 内运 In this way, the heating performance of the air conditioner is improved and the user experience is enhanced through fine control of the operating speed of the outdoor fan and the indoor fan.

[0037] In this application, the wall-mounted air conditioner includes an indoor unit and an outdoor unit. The outdoor unit mainly includes a compressor, an outdoor fan, and an outdoor heat exchanger, while the indoor unit mainly includes an indoor fan and an indoor heat exchanger. Under the action of the compressor, the refrigerant circulates between the outdoor heat exchanger and the indoor heat exchanger. When the wall-mounted air conditioner is in heating mode, under the action of the indoor fan, the refrigerant exchanges heat with the air in the indoor space through the indoor heat exchanger, releasing heat to the indoor space, thereby achieving the purpose of heating. Under the action of the outdoor fan, the refrigerant exchanges heat with the air in the external environment through the outdoor heat exchanger, absorbing heat from the external environment, thereby providing heating for the indoor space.

[0038] In this application, the outdoor fan and the indoor fan have an outdoor unit preset speed and an indoor unit preset speed respectively. The outdoor unit preset speed is the outdoor fan speed preset according to the operating frequency of the compressor, and the indoor unit preset speed is the indoor fan speed preset according to the wind speed gear.

[0039] It should be noted that during heating, under certain operating conditions, the indoor and outdoor temperatures are known, and the user can set a preset temperature and preset wind speed as needed. The wall-mounted air conditioner pre-stores a database of compressor operating frequencies, which reflects the mapping relationship between temperature, wind speed, and compressor operating frequency. After setting the preset temperature and preset wind speed, the compressor operating frequency corresponding to the preset temperature and preset wind speed can be determined based on the mapping relationship in the database. This allows the outdoor unit preset speed to be determined based on the compressor operating frequency, and the indoor unit preset speed to be determined based on the wind speed.

[0040] Furthermore, a speed database can be pre-built, storing outdoor fan speeds corresponding to different compressor operating frequencies and indoor fan speeds corresponding to different wind speeds. Upon receiving a preset wind speed, the wall-mounted air conditioner matches the preset wind speed with the fan speeds in the speed database and determines the matching indoor fan speed as the indoor unit preset speed corresponding to the preset wind speed. Upon receiving a compressor operating frequency, the wall-mounted air conditioner matches the compressor operating frequency in the speed database and determines the matching outdoor fan speed as the outdoor unit preset speed corresponding to the compressor operating frequency.

[0041] Obviously, a comparison table can also be pre-constructed, in which different compressor operating frequencies and wind speeds correspond to different outdoor fan speeds and indoor fan speeds. When it is necessary to determine the preset outdoor unit speed and indoor unit speed under different operating conditions, the corresponding compressor operating frequency and preset wind speed under the operating condition are compared with the data in the comparison table, and the outdoor fan speed and indoor fan speed that match the corresponding data are used as the preset outdoor unit speed and indoor unit speed under the operating condition.

[0042] It should be noted that the above-mentioned speed database and comparison table can be stored in the computer board of the wall-mounted air conditioner, and can obviously also be stored in other possible locations, as long as the speed database and comparison table can be called when it is necessary to determine the preset speed of the outdoor unit and the preset speed of the indoor unit.

[0043] Of course, the preset speed of the outdoor unit and the preset speed of the indoor unit can also be determined by other methods. Technical personnel in this field can flexibly choose according to the specific application scenario, as long as the preset speed of the outdoor unit and the preset speed of the indoor unit can be determined.

[0044] It should be noted that the indoor fan and the outdoor fan have a minimum speed for the indoor unit and a maximum speed for the outdoor unit respectively. When the operating speed of the indoor fan is lower than the minimum speed of the indoor unit, the indoor fan basically cannot start normally. When the outdoor fan runs at a speed higher than the maximum speed of the outdoor unit, it may cause the outdoor fan to be overloaded or even damaged.

[0045] In the present application, the wall-mounted air conditioner is equipped with an outdoor temperature sensor and an indoor temperature sensor. The outdoor temperature can be detected by the outdoor temperature sensor, and the indoor temperature can be detected by the indoor temperature sensor.

[0046] It should be noted that the outdoor temperature sensor and the indoor temperature sensor may be, but are not limited to, a thermistor, a thermocouple, a resistance temperature detector (RTD), an analog thermometer IC, a digital thermometer IC, and the like.

[0047] Obviously, the wall-mounted air conditioner can also be configured without an indoor temperature sensor and an outdoor temperature sensor. For example, a positioning module can be set on the wall-mounted air conditioner to obtain the location of the wall-mounted air conditioner, and the wall-mounted air conditioner can be connected to an Internet platform via communication methods such as Bluetooth, WiFi, Mesh, ZigBee, Thread, Z-Wave, NFC, Hilink, UWB, LiFi, etc. When it is necessary to obtain the outdoor temperature, the outdoor temperature of the location of the wall-mounted air conditioner can be queried through the Internet platform. The indoor temperature can be determined by a thermometer set in the indoor space, and the thermometer is connected to the wall-mounted air conditioner in communication, and the thermometer can upload the indoor temperature it detects to the wall-mounted air conditioner. Alternatively, the user can upload the outdoor temperature and indoor temperature to the wall-mounted air conditioner through a remote control, an APP or other mobile terminal connected to the wall-mounted air conditioner in communication, or a PC connected to the wall-mounted air conditioner. Without departing from the principles of this application, those skilled in the art can flexibly select the specific method of obtaining the outdoor temperature and indoor temperature according to the specific application scenario, as long as the outdoor temperature and indoor temperature can be obtained.

[0048] In this application, the wall-mounted air conditioner further includes a control module, which can obtain the outdoor temperature T 外 and indoor temperature T 内 , according to the obtained outdoor temperature T 外 Determine the speed S of the outdoor fan 外 , according to the obtained outdoor temperature T 外 and indoor temperature T 内 Determine the speed S of the indoor fan 内 , according to the determined outdoor fan speed S 外 and the speed of the indoor fan S 内 Determine the operating speed S of the outdoor fan 外运 and the operating speed of the indoor fan S 内运 .

[0049] It should be noted that this control module can physically be a control chip of the wall-mounted air conditioner itself, or a controller specifically used to execute the method of the present application, or a functional module or functional unit of a general controller.

[0050] Below, refer to Figures 1 to 6 To illustrate possible implementations of the control method for the wall-mounted air conditioner of the present invention.

[0051] like Figure 1 As shown, in a possible implementation manner, the control method of the present invention includes:

[0052] S100: Get outdoor temperature T 外 and indoor temperature T 内 ;

[0053] S101: According to the outdoor temperature T 外 Determine the speed S of the outdoor fan 外 ;

[0054] S102: According to the outdoor temperature T 外 and indoor temperature T 内 Determine the speed S of the indoor fan 内 ;

[0055] S103: Based on the speed S of the outdoor fan 外 and the speed of the indoor fan S 内 , determine the operating speed S of the outdoor fan 外运 and the operating speed of the indoor fan S 内运 .

[0056] In S100, the outdoor temperature T is obtained based on the outdoor temperature sensor and the indoor temperature sensor. 外 and indoor temperature T 内 .

[0057] In S101, based on the outdoor temperature T obtained in S100 外 , determine the speed S of the outdoor fan 外 .

[0058] In S102, based on the outdoor temperature T obtained in S100 外 and indoor temperature T 内 , determine the speed S of the indoor fan 内 .

[0059] It should be noted that there is no particular order in which S101 and S102 are executed. S101 may be executed first, or S102 may be executed first, or both S101 and S102 may be executed simultaneously.

[0060] In S103, based on the speed S of the outdoor fan determined in S101, 外 , the speed S of the indoor fan determined in S102 内 , determine the operating speed S of the outdoor fan 外运 and the operating speed of the indoor fan S 内运 .

[0061] Through the above control method, it is possible to adjust the temperature according to the outdoor temperature T 外 and indoor temperature T 内 To determine the operating speed S of the outdoor fan 外运 and the operating speed of the indoor fan S 内运 , which can more finely control the operating speed of the outdoor fan and indoor fan, effectively improve the heating performance of the air conditioner and enhance the user experience.

[0062] like Figure 2 As shown, in a possible implementation manner, S101 specifically includes:

[0063] S200: Get outdoor temperature T 外 ;

[0064] S201: Determine the outdoor temperature T 外 Is it less than the first preset temperature T1? If so, execute S202; if not, execute S203;

[0065] S202: Based on formula S 外 =S 外机预设 +K1(T1-T 外 ) Determine the speed S of the outdoor fan 外 ;

[0066] S203: Set the preset speed of the outdoor fan to S 外机预设 Determined as the speed S of the outdoor fan 外 .

[0067] In S200, similar to the above S100, the outdoor temperature T is obtained based on the above outdoor temperature sensor. 外 .

[0068] In S201, based on the outdoor temperature T obtained in S200 外 , determine the outdoor temperature T 外 Is it lower than the first preset temperature T1? If the outdoor temperature T 外 If the outdoor temperature is lower than the first preset temperature T1, it means that the outdoor temperature is relatively low. At this time, the speed S of the outdoor fan is determined based on the following formula (1): 外 , that is, execute S202:

[0069] S 外 =S 外机预设 +K1(T1-T 外 ) (1)

[0070] Among them, K1 is the first temperature coefficient, S 外机预设 The preset speed of the outdoor fan.

[0071] It should be noted that the first temperature coefficient K1 is based on the outdoor temperature T 外 The value range of the first temperature coefficient K1 is between 0 and 50, which is usually a multiple of 5. For example, at the outdoor temperature T 外 In an extremely cold environment (such as the Northeast region) with a temperature below -7°C, in order to speed up the heat absorption, the outdoor fan needs to be controlled to run at a higher speed. At this time, the first temperature coefficient K1 can be set to 20. 外 When the temperature is greater than or equal to -7°C, the speed of the outdoor fan can be slightly slowed down. At this time, the first temperature coefficient K1 can be set to 10.

[0072] Thus, the outdoor fan speed S is determined by the above formula (1): 外 It is higher than the preset speed of the outdoor fan, which can speed up the heat exchange between the refrigerant and the outdoor environment, better absorb heat from the outside, thereby better increasing the indoor temperature and improving the heating performance of the air conditioner.

[0073] If the outdoor temperature T 外 If the outdoor temperature is greater than or equal to the first preset temperature T1, it means that the outdoor temperature is not very low. At this time, the preset speed of the outdoor fan S 外机预设 Determined as the speed S of the outdoor fan 外 , that is, executing S203, controlling the outdoor fan to run at a preset speed, so that the heat exchange requirement can be met.

[0074] Through the above control method, based on the outdoor temperature T 外 The size of the outdoor fan controls the speed S外 , based on the outdoor temperature T 外 The size of the outdoor fan determines the speed S 外 , so that the speed of the outdoor fan S 外 and outdoor temperature T 外 Adapt to achieve the outdoor fan speed S 外 More refined control can better absorb heat from the outside and ensure the stable operation of the air conditioner.

[0075] It should be noted that at the outdoor temperature T 外 When the temperature is greater than or equal to the first preset temperature T1, the preset speed of the outdoor fan may not be determined as the speed S of the outdoor fan. 外 , but still use the above formula (1) to determine the speed S of the outdoor fan 外 However, this control method may cause problems such as excessive heat absorption, high air outlet temperature, and rapid increase in indoor temperature.

[0076] In this application, the speed of the indoor fan S 内 According to the outdoor temperature T 外 and indoor temperature T 内 To determine, refer to the following Figure 3 and Figure 5 To illustrate this application based on the outdoor temperature T 外 and indoor temperature T 内 Determine the speed S of the indoor fan 内 possible implementations.

[0077] like Figure 3 As shown, in a possible implementation manner, S102 specifically includes:

[0078] S300: Get outdoor temperature T 外 and indoor temperature T 内 ;

[0079] S301: Determine the outdoor temperature T 外 Is it less than the first preset temperature T1? If so, execute S302; if not, execute S502;

[0080] S302: Determine the indoor temperature T 内 Is it less than the second preset temperature T2? If so, execute S303; if not, execute S304;

[0081] S303: Based on formula S 内 =S 内机预设 -K2(T1-T 外 )-K3(T2-T 内 ) Determine the speed S of the indoor fan 内 ;

[0082] S304: Further determine the indoor temperature T 内 Is it less than the third preset temperature T3? If so, execute S305; if not, execute S306;

[0083] S305: Based on formula S 内 =S 内机预设 -K4(T1-T 外 ) Determine the speed S of the indoor fan 内 ;

[0084] S306: Set the preset speed of the indoor fan to S 内机预设 Determined as the speed S of the indoor fan 内 .

[0085] In S300, similar to S100, the outdoor temperature T is obtained based on the outdoor temperature sensor and the indoor temperature sensor. 外 and indoor temperature T 内 .

[0086] In S301, based on the outdoor temperature T obtained in S300, 外 , determine the outdoor temperature T 外 Is it lower than the first preset temperature T1? If the outdoor temperature T 外 is lower than the first preset temperature T1, indicating that the outdoor temperature T 外 Very low, for example, in some extreme environments, the outdoor temperature T 外 When it is -10℃ (i.e. minus 10℃), the indoor temperature T 内 If the temperature is lower than the second preset temperature T2, S302 is executed.

[0087] If the outdoor temperature T 外 If the outdoor temperature is greater than or equal to the first preset temperature T1, it means that the outdoor temperature is not very low, and S502 is executed. The specific execution method of S502 is described below and will not be repeated here.

[0088] If the indoor temperature T 内 If the indoor temperature is lower than the second preset temperature T2, it means that the indoor temperature is too low and needs to be raised quickly. 内 At this time, the speed S of the indoor fan is determined based on the following formula (2): 内 , base executes S303:

[0089] S 内 =S 内机预设 -K2(T1-T 外 )-K3(T2-T 内 ) (2)

[0090] Among them, K2 is the second temperature coefficient, K3 is the third temperature coefficient, S 内机预设 is the preset speed of the indoor fan.

[0091] It should be noted that the second temperature coefficient K2 and the third temperature coefficient K3 are both based on the indoor temperature T 内 The value range of the second temperature coefficient K2 and the third temperature coefficient K3 is between 0 and 50, which is usually a multiple of 5. For example, at the indoor temperature T 内 When the indoor temperature is lower than 0℃, the indoor temperature is low. At this time, the influence of outdoor temperature and indoor temperature should be considered at the same time, and the temperature should be raised quickly. At this time, the second temperature coefficient K2 can be set to 15, and the third temperature coefficient K3 can be set to 5. 内 When the temperature is greater than 0°C, the indoor temperature is not particularly low. At this time, we only need to consider the influence of the outdoor temperature and appropriately increase the speed of the indoor fan to improve the heat exchange efficiency. At this time, the second temperature coefficient K2 can be 10 and the third temperature coefficient K3 can be 0.

[0092] The speed S of the indoor fan is determined by the above formula (2): 内 Higher than the preset speed of the indoor fan, the speed of the slower indoor fan S 内 To increase the air outlet temperature and prevent user discomfort caused by too low air outlet temperature.

[0093] If the indoor temperature T 内 is greater than or equal to the second preset temperature T2, then further determine the indoor temperature T 内 If the temperature is lower than the third preset temperature T3, the process proceeds to step S304, wherein the third preset temperature T3 is higher than the second preset temperature T2.

[0094] If the indoor temperature T 内 is lower than the third preset temperature T3, indicating that the indoor temperature T 内 It is not very low, but still below the human body comfort temperature. At this time, the speed S of the indoor fan is determined based on the following formula (3): 内 , that is, execute S305:

[0095] S 内 =S 内机预设 -K4(T1-T 外 ) (3)

[0096] Among them, K4 is the fourth temperature coefficient, S 内机预设 The preset speed of the indoor fan.

[0097] It should be noted that the fourth temperature coefficient K4 is based on the indoor temperature T 内The value range of the fourth temperature coefficient K4 is between 0 and 50, which is usually a multiple of 5. For example, at the indoor temperature T 内 When the indoor temperature is lower than 0℃, the indoor temperature is low and needs to be heated up quickly. At this time, the fourth temperature coefficient K4 can be set to 5. 内 When the indoor temperature is greater than 0°C, the indoor temperature is not particularly low, and the speed of the indoor fan is appropriately increased to improve the heat exchange efficiency. In this case, the fourth temperature coefficient K4 can be 0. It should be noted that the fourth temperature coefficient K4 can be the same as or different from the second temperature coefficient K2.

[0098] When the heating amount is the same, the lower the speed of the indoor fan, the higher the outlet air temperature, but the heat exchange efficiency will also decrease. By running the indoor fan at a speed slightly lower than the preset speed of the indoor fan determined based on the above formula (3), the outlet air temperature requirement can be met while ensuring heat exchange efficiency, thereby improving the heating performance of the air conditioner.

[0099] If the indoor temperature T 内 is greater than or equal to the third preset temperature T3, indicating that the indoor temperature T 内 Slightly lower, closer to the human body's comfortable temperature, in order to prevent the air outlet temperature from being too high, causing the indoor temperature to rise rapidly, thereby causing the user to feel uncomfortable, at this time the preset speed of the indoor fan S 内机预设 Determined as the speed S of the indoor fan 内 , that is, execute S306. By controlling the indoor fan to its preset speed S 内机预设 Operation can also meet the heating needs, while also improving the heat exchange efficiency and improving the heating performance of the air conditioner.

[0100] Through the above control method, when the outdoor temperature T 外 When the temperature is lower than the first preset temperature T1, based on the indoor temperature T 内 The size of the indoor fan determines the speed S 内 , so that the speed of the indoor fan S 内 With indoor temperature T 内 Adapt to achieve the indoor fan speed S 内 More refined control can output more appropriate heating amount to the indoor space and improve the heating performance of the wall-mounted air conditioner.

[0101] It should be noted that at the indoor temperature T 内 When the indoor temperature T is greater than or equal to the second preset temperature T2, no further determination is required. 内 Is it less than the third preset temperature T3? Instead, the speed S of the indoor fan is determined directly based on the above formula (3). 内 , or directly set the preset speed S of the indoor fan 内机预设 Determined as the speed S of the indoor fan内 , that is, directly execute S305 or S306. However, these control methods may have problems such as too high air outlet temperature and too low heat exchange efficiency.

[0102] After determining the speed S of the outdoor fan 外 and the speed of the indoor fan S 内 After that, it is necessary to finally determine the operating speed S of the outdoor fan. 外运 and the operating speed of the indoor fan S 内运 , to facilitate the control of outdoor fans and indoor fans.

[0103] Refer to the following Figure 4 To illustrate the application of determining the operating speed S of the outdoor fan 外运 and the operating speed of the indoor fan S 内运 possible implementations.

[0104] like Figure 4 As shown, in a possible implementation manner, the control method of the present invention includes:

[0105] S400: Get outdoor temperature T 外 and indoor temperature T 内 ;

[0106] S401: According to the outdoor temperature T 外 Determine the speed S of the outdoor fan 外 , according to the outdoor temperature T 外 and indoor temperature T 内 Determine the speed S of the indoor fan 内 ;

[0107] S402: Determine the speed S of the outdoor fan 外 Is it greater than or equal to the maximum speed S1 of the outdoor unit and the speed S of the indoor fan? 内 Is it less than or equal to the minimum speed of the indoor unit S2? If so, execute S403; if not, execute S404;

[0108] S403: Determine the maximum speed S1 of the outdoor unit as the operating speed S of the outdoor fan 外运 , determine the minimum speed S2 of the indoor unit as the operating speed S of the indoor fan 内运 ;

[0109] S404: Set the speed of the outdoor fan to S 外 Determined as the operating speed S of the outdoor fan 外运 , set the speed of the indoor fan to S 内 Determined as the operating speed S of the indoor fan 内运 .

[0110] In S400, similar to S100 and S300, the outdoor temperature T is obtained based on the outdoor temperature sensor and the indoor temperature sensor. 外 and indoor temperature T 内 .

[0111] In S401, similar to S101 and S102, based on the outdoor temperature T obtained in S400, 外 Determine the speed S of the outdoor fan 外 , based on the outdoor temperature T obtained in S400 外 and indoor temperature T 内 Determine the speed S of the indoor fan 内 How to calculate the outdoor temperature T 外 Determine the speed S of the outdoor fan 外 , based on outdoor temperature T 外 and indoor temperature T 内 Determine the speed S of the indoor fan 内 The above steps S200 to S202 and S300 to S306 have been described and will not be repeated here.

[0112] In S402, based on the speed S of the outdoor fan determined in S401, 外 and the speed of the indoor fan S 内 , determine the speed S of the outdoor fan 外 Is it greater than or equal to the maximum speed S1 of the outdoor unit and the speed S of the indoor fan? 内 Is it less than or equal to the minimum speed of the indoor unit S2? If the speed of the outdoor fan S 外 Greater than or equal to the maximum speed of the outdoor unit S1, the speed of the indoor fan S 内 Less than or equal to the minimum speed S2 of the indoor unit, in order to ensure the normal operation of the outdoor fan and the indoor fan, the maximum speed S1 of the outdoor unit is determined as the operating speed S of the outdoor fan. 外运 , determine the minimum speed S2 of the indoor unit as the operating speed S of the indoor fan 内运 , that is, execute S403.

[0113] If the speed of the outdoor fan S 外 Less than the maximum speed of the outdoor unit S1, the speed of the indoor fan S 内 If the speed is greater than the minimum speed S2 of the indoor unit, the speed of the outdoor fan S 外 Determined as the operating speed S of the outdoor fan 外运 , set the speed of the indoor fan to S 内 Determined as the operating speed S of the indoor fan 内运 , that is, execute S404.

[0114] Through the above control method, the operating speed of the outdoor fan and the indoor fan can be controlled more finely, ensuring the stable operation of the outdoor fan and the indoor fan, improving the heating performance of the air conditioner, and enhancing the user experience.

[0115] like Figure 5 As shown, in a possible implementation manner, S102 further includes:

[0116] S500: Get outdoor temperature T 外 and indoor temperature T 内 ;

[0117] S501: Determine the outdoor temperature T 外 Is it less than the first preset temperature T1? If so, execute S302; if not, execute S502;

[0118] S502: Determine the indoor temperature T 内 Is it less than the fourth preset temperature T4? If so, execute S503; if not, execute S504;

[0119] S503: Based on formula S 内 =S 内机预设 -K5(T4-T 内 ) Determine the speed S of the indoor fan 内 ;

[0120] S504: Set the preset speed of the indoor fan to S 内机预设 Determined as the speed S of the indoor fan 内 .

[0121] In S500, similar to S100, S300, and S400, the outdoor temperature T is obtained based on the outdoor temperature sensor and the indoor temperature sensor. 外 and indoor temperature T 内 .

[0122] In S501, based on the outdoor temperature T obtained in S500, 外 , determine the outdoor temperature T 外 Is it lower than the first preset temperature T1? If the outdoor temperature T 外 If the outdoor temperature is lower than the first preset temperature T1, it indicates that the outdoor temperature is relatively low, and S302 is executed. The specific execution method of S302 is described above and will not be repeated here.

[0123] If the outdoor temperature T 外 If it is greater than or equal to the first preset temperature T1, it means that the outdoor temperature is not very low. At this time, the indoor temperature T 内 If the temperature is lower than the fourth preset temperature T4, the process proceeds to S502.

[0124] If the indoor temperature T 内 If the temperature is lower than the fourth preset temperature T4, it means that the indoor temperature is low. At this time, the speed S of the indoor fan is determined based on the following formula (4): 内 , that is, execute S503:

[0125] S 内 =S 内机预设 -K5(T4-T 内 ) (4)

[0126] Among them, K5 is the fifth temperature coefficient, S 内机预设 is the preset speed of the indoor fan.

[0127] It should be noted that the fifth temperature coefficient K5 is based on the indoor temperature T 内 The value range of the fifth temperature coefficient K5 is between 0 and 50, which is usually a multiple of 5. For example, at the indoor temperature T 内 When the indoor temperature is lower than 0℃, the indoor temperature is low and needs to be heated up quickly. At this time, the fifth temperature coefficient K5 can be set to 15. 内 When the indoor temperature is greater than 0°C, the indoor temperature is not particularly low, and the speed of the indoor fan is appropriately increased to improve the heat exchange efficiency. In this case, the fifth temperature coefficient K5 can be set to 10. It should be noted that the fifth temperature coefficient K5 can be the same as or different from the third temperature coefficient K3.

[0128] The speed S of the indoor fan determined based on the above formula (4) is 内 Lower than the preset speed of the indoor fan, through the slower speed S of the indoor fan 内 To increase the air outlet temperature and avoid user discomfort caused by too low air outlet temperature.

[0129] If the indoor temperature T 内 is greater than or equal to the fourth preset temperature T4, indicating that the indoor temperature T 内 It is not very low, and there is no need to quickly increase the temperature of the indoor space. At this time, the preset speed of the indoor fan S 内机预设 Determined as the speed S of the indoor fan 内 , that is, execute S504. By controlling the indoor fan to its preset speed S 内机预设 The operation can also meet the heating needs, while also ensuring the heat exchange efficiency, effectively improving the user experience.

[0130] Through the above control method, when the outdoor temperature T 外 When the temperature is greater than or equal to the first preset temperature T1, based on the indoor temperature T 内 The size of the indoor fan determines the speed S 内 , so that the speed of the indoor fan S 内 With indoor temperature T内 Adapt to achieve the indoor fan speed S 内 More refined control can output more appropriate heating amount to the indoor space and improve the heating performance of the wall-mounted air conditioner.

[0131] It should be noted that at the indoor temperature T 内 When the temperature is greater than or equal to the fourth preset temperature T4, the speed S of the indoor fan can also be determined based on the above formula (4): 内 However, this control method has problems such as excessively high air outlet temperature causing user discomfort and low heat exchange efficiency leading to poor heating performance of the wall-mounted air conditioner.

[0132] It should be noted that the fourth preset temperature T4 and the second preset temperature T2 may be the same or different.

[0133] After determining the speed S of the outdoor fan 外 and the speed of the indoor fan S 内 After that, it is necessary to finally determine the operating speed S of the outdoor fan. 外运 and the operating speed of the indoor fan S 内运 , to facilitate the control of outdoor fans and indoor fans.

[0134] In one possible embodiment, at the outdoor temperature T 外 When the temperature is greater than or equal to the first preset temperature T1, the speed S of the outdoor fan determined in step S203 is 外 This is the preset speed of the outdoor fan. In this case, the speed of the outdoor fan S 外 Basically, there is no risk of exceeding the maximum speed S1 of the outdoor unit. In this case, the speed of the outdoor fan S 外 Determined as the operating speed S of the outdoor fan 外运 .

[0135] Refer to the following Figure 6 To illustrate the application of determining the operating speed S of the indoor fan 内运 possible implementations.

[0136] like Figure 6 As shown, in a possible implementation manner, the control method of the present invention further includes:

[0137] S600: Get outdoor temperature T 外 and indoor temperature T 内 ;

[0138] S601: According to the outdoor temperature T 外 and indoor temperature T 内 Determine the speed S of the indoor fan 内 ;

[0139] S602: Determine the speed S of the indoor fan 内 Is it less than or equal to the minimum speed of the indoor unit S2? If so, execute S603; if not, execute S604;

[0140] S603: Determine the minimum speed S2 of the indoor unit as the operating speed S of the indoor fan 内运 ;

[0141] S604: Set the speed of the indoor fan to S 内 Determined as the operating speed S of the indoor fan 内运 .

[0142] In S600, similar to S100, S300, S400, and S500, the outdoor temperature T is obtained based on the outdoor temperature sensor and the indoor temperature sensor. 外 and indoor temperature T 内 .

[0143] In S601, similar to S102, based on the outdoor temperature T obtained in 600, 外 and indoor temperature T 内 Determine the speed S of the indoor fan 内 How to calculate the outdoor temperature T 外 and indoor temperature T 内 Determine the speed S of the indoor fan 内 The above steps S500 to S504 have been described and will not be repeated here.

[0144] In S602, based on the speed S of the indoor fan determined in S601, 内 , determine the speed S of the indoor fan 内 Is it less than or equal to the minimum speed of the indoor unit S2? If the speed of the indoor fan S 内 Less than or equal to the minimum speed S2 of the indoor unit. In order to ensure the normal operation of the outdoor fan and the indoor fan, the minimum speed S2 of the indoor unit is determined as the operating speed S of the indoor fan. 内运 , that is, execute S603.

[0145] If the speed of the indoor fan S 内 If the speed is greater than the minimum speed S2 of the indoor unit, the speed of the indoor fan S 内 Determined as the operating speed S of the indoor fan 内运 , that is, execute S604.

[0146] Through the above control method, the operating speed of the indoor fan can be controlled more finely, ensuring the stable operation of the indoor fan, improving the heating performance of the air conditioner, and enhancing the user experience.

[0147] It should be noted that, when determining the speed S of the outdoor fan,外 and the speed of the indoor fan S 内 After that, you can also directly set the speed of the outdoor fan S 外 and the speed of the indoor fan S 内 As the operating speed S of the outdoor fan 外运 and the operating speed of the indoor fan S 内运 However, this control method has a negative impact on the speed S of the outdoor fan. 外 When it is too large, the outdoor fan will be overloaded and the speed of the indoor fan will be too high. 内 When it is small, it cannot start normally.

[0148] It should be noted that the specific values ​​of the first temperature coefficient K1, the second temperature coefficient K2, the third temperature coefficient K3, the fourth temperature coefficient K4, and the fifth temperature coefficient K5 are merely exemplary descriptions. Those skilled in the art can flexibly select the specific values ​​of K1 to K5 according to specific application scenarios. As long as the speed S of the outdoor fan determined based on the K1 to K5 is 外 and the speed of the indoor fan S 内 It only needs to meet the heating needs and ensure heat exchange efficiency.

[0149] In summary, in the preferred technical solution of the present invention, based on the outdoor temperature T 外 Determine the speed S of the outdoor fan 外 , based on the indoor temperature T 内 and outdoor temperature T 外 Determine the speed S of the indoor fan 内 , then based on the speed S of the outdoor fan 外 and the speed of the indoor fan S 内 Determine the operating speed S of the outdoor fan 外运 and the operating speed of the indoor fan S 内运 , so that the operating speed of the outdoor fan and indoor fan can be controlled more finely, effectively improving the heating performance of the air conditioner and enhancing the user experience. 外 and the speed of the indoor fan S 内 Then, based on the speed S of the outdoor fan 外 and the speed of the indoor fan S 内 The size of the outdoor fan determines the operating speed S 外运 and the operating speed of the indoor fan S 内运 , which can more finely control the operating speed of the outdoor fan and indoor fan, ensure the stable operation of the outdoor fan and indoor fan, improve the heating performance of the air conditioner, and enhance the user experience.

[0150] Although the various steps in the above embodiment are described in the above-mentioned order, those skilled in the art will understand that in order to achieve the effect of this embodiment, different steps do not have to be executed in such an order. They can be executed simultaneously (in parallel) or in a reverse order. These simple changes are within the scope of protection of this application.

[0151] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that: The air conditioner includes an indoor unit and an outdoor unit, the indoor unit includes an indoor fan, and the outdoor unit includes an outdoor fan. The control method includes: When the air conditioner is in heating mode, the outdoor temperature T 外 and indoor temperature T 内 ; According to the outdoor temperature T 外 Determine the speed S of the outdoor fan 外 ; According to the indoor temperature T 内 and the outdoor temperature T 外 Determine the speed S of the indoor fan 内 ; Based on the speed S of the outdoor fan 外 and the speed S of the indoor fan 内 , determine the operating speed S of the outdoor fan 外运 and the operating speed S of the indoor fan 内运 ; Wherein, "according to the outdoor temperature T 外 Determine the speed S of the outdoor fan 外 The specific steps include: Compare the outdoor temperature T 外 and the first preset temperature T1; Based on the comparison result, the speed S of the outdoor fan is determined. 外 ; Wherein, "Based on the comparison result, determine the speed S of the outdoor fan 外 The specific steps include: If the outdoor temperature T 外 If the temperature is lower than the first preset temperature T1, the speed S of the outdoor fan is determined based on the following formula: 外 : S 外 =S 外机预设 +K1(T1-T 外 ) Among them, K1 is the first temperature coefficient, S 外机预设 is the preset speed of the outdoor fan; Wherein, "according to the indoor temperature T 内 and outdoor temperature T 外 Determine the speed S of the indoor fan 内 The specific steps include: Determine the indoor temperature T 内 Is it lower than the second preset temperature T2? If the indoor temperature T 内 is less than the second preset temperature T2, the speed S of the indoor fan is determined based on the following formula: 内 : S 内 =S 内机预设 -K2(T1-T 外 )-K3(T2-T 内 ) Among them, K2 is the second temperature coefficient, K3 is the third temperature coefficient, S 内机预设 is the preset speed of the indoor fan; If the indoor temperature T 内 is greater than or equal to the second preset temperature T2, then further determine the indoor temperature T 内 Is it lower than the third preset temperature T3? Based on the first judgment result and the outdoor temperature T 外 , determine the speed S of the indoor fan 内 ; The third preset temperature T3 is greater than the second preset temperature T2.

2. The control method according to claim 1, characterized in that: Based on the first judgment result and the outdoor temperature T 外 , determine the speed S of the indoor fan 内 The specific steps include: If the indoor temperature T 内 If the temperature is lower than the third preset temperature T3, the speed S of the indoor fan is determined based on the following formula: 内 : S 内 =S 内机预设 -K4(T1-T 外 ) Among them, K4 is the fourth temperature coefficient, S 内机预设 is the preset speed of the indoor fan; If the indoor temperature T 内 If the temperature is greater than or equal to the third preset temperature T3, the preset speed S of the indoor fan is set to 内机预设 Determined as the speed S of the indoor fan 内 .

3. The control method according to claim 2, characterized in that: Based on the speed S of the outdoor fan 外 and the speed S of the indoor fan 内 , determine the operating speed S of the outdoor fan 外运 and the operating speed S of the indoor fan 内运 The specific steps include: Determine the speed S of the outdoor fan 外 Is it greater than or equal to the maximum speed S1 of the outdoor unit and the speed S of the indoor fan? 内 Is it less than or equal to the minimum speed of the indoor unit S2? If the speed of the outdoor fan S 外 Greater than or equal to the maximum speed S1 of the outdoor unit and the speed S of the indoor fan 内 If the maximum speed of the outdoor unit S1 is less than or equal to the minimum speed of the indoor unit S2, the maximum speed of the outdoor unit S1 is determined as the operating speed of the outdoor fan S 外运 , determine the minimum speed S2 of the indoor unit as the operating speed S of the indoor fan 内运 ; If the speed of the outdoor fan S 外 Less than the maximum speed S1 of the outdoor unit and the speed S of the indoor fan 内 If the speed of the outdoor fan is greater than the minimum speed S2 of the indoor unit, the speed of the outdoor fan is increased to S 外 Determined as the operating speed S of the outdoor fan 外运 , the speed of the indoor fan S 内 Determined as the operating speed S of the indoor fan 内运 .

4. The control method according to claim 1, wherein: Based on the comparison result, the speed S of the outdoor fan is determined. 外 The specific steps include: If the outdoor temperature T 外 If the temperature is greater than or equal to the first preset temperature T1, the preset speed S of the outdoor fan is set to 外机预设 Determined as the speed S of the outdoor fan 外 .

5. The control method according to claim 4, characterized in that: According to the indoor temperature T 内 and outdoor temperature T 外 Determine the speed S of the indoor fan 内 The specific steps include: Determine the indoor temperature T 内 Is it lower than the fourth preset temperature T4? Based on the second judgment result and the indoor temperature T 内 , determine the speed S of the indoor fan 内 .

6. The control method according to claim 5, characterized in that: Based on the second judgment result and the indoor temperature T 内 , determine the speed S of the indoor fan 内 The specific steps include: If the indoor temperature T 内 If the temperature is lower than the fourth preset temperature T4, the speed S of the indoor fan is determined based on the following formula: 内 : S 内 =S 内机预设 -K5(T4-T 内 ) Among them, K5 is the fifth temperature coefficient, S 内机预设 is the preset speed of the indoor fan; If the indoor temperature T 内 If the temperature is greater than or equal to the fourth preset temperature T4, the preset speed S of the indoor fan is set to 内机预设 Determined as the speed S of the indoor fan 内 .

7. The control method according to claim 6, characterized in that: Based on the speed S of the outdoor fan 外 and the speed S of the indoor fan 内 , determine the operating speed S of the outdoor fan 外运 and the operating speed S of the indoor fan 内运 The specific steps include: The speed of the outdoor fan S 外 Determined as the operating speed S of the outdoor fan 外运 ; Determine the speed S of the indoor fan 内 Is it less than or equal to the minimum speed of the indoor unit S2? If the speed of the indoor fan S 内 If the minimum speed of the indoor unit is less than or equal to S2, the minimum speed of the indoor unit S2 is determined as the operating speed of the indoor fan S 内运 ; If the speed of the indoor fan S 内 If the speed of the indoor fan is greater than the minimum speed S2, the speed of the indoor fan is increased to S 内 Determined as the operating speed S of the indoor fan 内运 .

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