Air conditioner

Abstract

The air conditioner comprises a refrigerant loop composed of a compressor, a condenser, a throttling device and an evaporator, an indoor fan and an indoor temperature detection device used for detecting the indoor temperature, and after a first signal is received, the first rotating speed of the indoor fan, the first operation frequency of the compressor and the indoor temperature are obtained; obtaining first air volume entering the indoor heat exchanger based on the first rotating speed and the indoor temperature; first vaporization latent heat is obtained based on the first operation frequency, the indoor temperature and the first air volume; first air sensible heat is obtained based on the first operation frequency and the first vaporization latent heat; obtaining an air conditioning system capacity value based on the first vaporization latent heat and the first air sensible heat; and the operation frequency of the compressor is adjusted according to the relation between the air conditioner system capacity value and the preset capacity range. On the basis of not additionally adding a hardware sensor, the latent heat exchange capacity and the sensible heat exchange capacity of the air conditioner are obtained through calculation according to the operation frequency of the compressor, the rotating speed of the draught fan and the indoor temperature, then the air conditioner system capacity value used for displaying the air conditioner system capacity is obtained, and the air conditioner is simple in structure and high in accuracy.

Description

Technical Field

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

[0002] Currently, users have increasingly high expectations for air conditioners. Beyond requiring systems to be able to cool or heat, meet required air outlet temperatures, and meet reliability requirements, they also prioritize the cooling capacity of existing systems and whether it matches the nominal parameters on the product nameplate. To achieve these goals, quantitative prediction of air conditioner system capacity is necessary.

[0003] In the related art, by adding an indoor unit air inlet temperature sensor, the air enthalpy and air volume at the indoor unit's air inlet and outlet are predicted, and the air conditioning capacity is obtained. In principle, this method has high accuracy, but the method of determining the enthalpy value only by the temperature value itself is not accurate, and the prediction ability lacks accuracy. In addition, the cost increases with the addition of the temperature sensor. In another part of the related art, by adding the indoor unit's inlet and outlet temperature and pressure sensors, the inlet and outlet enthalpy of the indoor unit's refrigerant side are predicted, and the air conditioning system capacity is obtained. Although this method has increased accuracy, the cost becomes higher.

[0004] In view of this, this application is filed. Summary of the Invention

[0005] In this application, the air conditioning system capacity value is calculated using the indoor fan speed, indoor temperature and compressor operating frequency. While visualizing the air conditioning system capacity, there is no need to add additional humidity sensor components, reducing costs.

[0006] The present application provides an air conditioner, which includes:

[0007] The refrigerant circuit circulates the refrigerant in a circuit consisting of a compressor, a condenser, a throttling device, and an evaporator. One of the condenser and the evaporator is an outdoor heat exchanger, and the other is an indoor heat exchanger.

[0008] Indoor fan, which is installed near the indoor heat exchanger and is used to deliver the heat-exchanged air into the room;

[0009] An indoor temperature detection device is provided on the indoor housing of the indoor unit and is used to detect the indoor temperature;

[0010] The controller is configured to obtain a first speed of the indoor fan, a first operating frequency of the compressor, and an indoor temperature upon receiving the first signal;

[0011] Performing a first logical operation based on the first rotation speed and the indoor temperature to obtain a first air volume entering the indoor heat exchanger;

[0012] Performing a second logical operation based on the first operating frequency, the indoor temperature, and the first air volume to obtain a first latent heat of vaporization;

[0013] Performing a third logical operation based on the first operating frequency and the first latent heat of vaporization to obtain a first sensible heat of air;

[0014] performing a fourth logical operation based on the first latent heat of vaporization and the first sensible heat of air to obtain an air conditioning system capacity value; wherein, in the fourth logical operation, the air conditioning system capacity value is proportional to the sum of the first latent heat of vaporization and the first sensible heat of air;

[0015] The operating frequency of the compressor is adjusted according to the relationship between the air conditioning system capacity value and the preset capacity range.

[0016] In some embodiments, in the second logical operation, the indoor latent heat calculation temperature is obtained based on the first operating frequency and the indoor temperature based on the first sub-logical operation;

[0017] Based on the indoor latent heat calculation temperature, a corresponding latent heat of vaporization value is obtained based on the second sub-logical operation to obtain the latent heat per unit air volume;

[0018] A first latent heat of vaporization is obtained based on the first air volume and the latent heat of vaporization value according to a third sub-logical operation.

[0019] In some embodiments, in the first logical operation, the first air volume is proportional to the product of the indoor speed parameter consisting of the first speed and the indoor temperature parameter consisting of the indoor temperature;

[0020] The indoor speed parameter is formed by calculating the ratio of the sum of the first speed and the first parameter to the indoor fan speed reference value;

[0021] The indoor temperature parameter is formed by calculating the ratio of the sum of the indoor temperature and the second parameter to the indoor temperature reference value.

[0022] In some embodiments, in the first sub-logical operation, the indoor latent heat calculation temperature is proportional to the ratio of the M-th power of the sum of the first operating frequency and the third parameter to the indoor temperature.

[0023] In some embodiments, in the second sub-logical operation, the first latent heat of vaporization is proportional to the product of the first air volume and the latent heat of vaporization value.

[0024] In some embodiments, in the third logical operation, the sensible heat of the air is proportional to the product of the air volume parameter consisting of the first air volume and the latent heat parameter consisting of the first latent heat of vaporization;

[0025] Among them, the air volume parameter is composed of the Nth power of the ratio of the air volume of the indoor heat exchanger to the air volume reference value;

[0026] The latent heat parameter is composed of the ratio of the first vaporization latent heat to the latent heat reference value.

[0027] In some embodiments, further comprising:

[0028] The outdoor fan is located near the outdoor heat exchanger and is used to send the heat-exchanged air to the outside;

[0029] An outdoor temperature detection device is provided outdoors and is used to detect the outdoor air temperature;

[0030] The controller is configured to, after receiving the second signal, obtain a second speed of the outdoor fan, an outdoor air temperature, and a second operating frequency of the compressor;

[0031] performing a fifth logical operation based on the second rotation speed and the outdoor air temperature to obtain a second air volume entering the outdoor heat exchanger;

[0032] performing a sixth logical operation based on the first operating frequency, the outdoor air temperature, and the second air volume to obtain a second latent heat of vaporization;

[0033] Performing a seventh logical operation based on the second operating frequency and the second latent heat of vaporization to obtain the sensible heat of air;

[0034] performing an eighth logical operation based on the second latent heat of vaporization and the sensible heat of the air to obtain an air conditioning system capacity parameter, wherein in the eighth logical operation, the air conditioning system capacity parameter is proportional to the sum of the second latent heat of vaporization and the sensible heat of the air;

[0035] The air conditioning system capacity value is obtained by performing a ninth logical operation based on the air conditioning coefficient capacity parameter and the fourth parameter;

[0036] The operating frequency of the compressor is adjusted according to the relationship between the air conditioning system capacity value and the preset capacity range.

[0037] In some embodiments, in the sixth logical operation, the outdoor latent heat calculation temperature is obtained based on the fourth sub-logical operation based on the second operating frequency and the outdoor air temperature;

[0038] Based on the outdoor latent heat calculation temperature, the corresponding latent heat of vaporization value is obtained based on the fifth sub-logical operation to obtain the latent heat per unit air volume;

[0039] A second latent heat of vaporization is obtained based on a sixth sub-logical operation based on the second air volume and the latent heat of vaporization value.

[0040] In some embodiments, in the fifth logical operation, the second air volume is proportional to the product of the outdoor speed parameter consisting of the second speed and the outdoor temperature parameter consisting of the outdoor air temperature;

[0041] The outdoor speed parameter is formed by calculating the ratio of the sum of the second speed and the fifth parameter to the outdoor fan speed reference value;

[0042] The outdoor temperature parameter is formed by calculating the ratio of the sum of the outdoor temperature and the sixth parameter to the outdoor temperature reference value.

[0043] The present application also proposes another air conditioner, which includes:

[0044] The refrigerant circuit circulates the refrigerant in a circuit consisting of a compressor, a condenser, a throttling device, and an evaporator. One of the condenser and the evaporator is an outdoor heat exchanger, and the other is an indoor heat exchanger.

[0045] The outdoor fan is located near the outdoor heat exchanger and is used to send the heat-exchanged air to the outside;

[0046] An outdoor temperature detection device is provided on the outdoor housing of the outdoor unit and is used to detect the outdoor air temperature;

[0047] The controller is configured to, after receiving the second signal, obtain a second speed of the outdoor fan, an outdoor air temperature, and a second operating frequency of the compressor;

[0048] performing a fifth logical operation based on the second rotation speed and the outdoor air temperature to obtain a second air volume entering the outdoor heat exchanger;

[0049] performing a sixth logical operation based on the first operating frequency, the outdoor air temperature, and the second air volume to obtain a second latent heat of vaporization;

[0050] Performing a seventh logical operation based on the second operating frequency and the second latent heat of vaporization to obtain the sensible heat of air;

[0051] performing an eighth logical operation based on the second latent heat of vaporization and the sensible heat of the air to obtain an air conditioning system capacity parameter, wherein in the eighth logical operation, the air conditioning system capacity parameter is proportional to the sum of the second latent heat of vaporization and the sensible heat of the air;

[0052] The air conditioning system capacity value is obtained by performing a ninth logical operation based on the air conditioning coefficient capacity parameter and the fourth parameter;

[0053] The operating frequency of the compressor is adjusted according to the relationship between the air conditioning system capacity value and the preset capacity range.

[0054] An air conditioner provided in an embodiment of the present application includes a refrigerant circuit consisting of a compressor, a condenser, a throttling device, and an evaporator, an indoor fan, and an indoor temperature detection device for detecting the indoor temperature. Upon receiving a first signal, the air conditioner obtains a first speed of the indoor fan, a first operating frequency of the compressor, and the indoor temperature, and performs a first logical operation based on the first speed and the indoor temperature to obtain a first air volume entering the indoor heat exchanger.

[0055] Performing a second logical operation based on the first operating frequency, the indoor temperature, and the first air volume to obtain a first latent heat of vaporization;

[0056] Performing a third logical operation based on the first operating frequency and the first latent heat of vaporization to obtain a first sensible heat of air;

[0057] performing a fourth logical operation based on the first latent heat of vaporization and the first sensible heat of air to obtain an air conditioning system capacity value; wherein, in the fourth logical operation, the air conditioning system capacity value is proportional to the sum of the first latent heat of vaporization and the first sensible heat of air;

[0058] The operating frequency of the compressor is adjusted according to the relationship between the air conditioning system capacity value and the preset capacity range.

[0059] Without adding any additional hardware sensors, this application uses the compressor operating frequency, fan speed and indoor temperature to calculate the latent heat exchange and sensible heat exchange of the air conditioner, and then obtains the air conditioning system capacity value used to demonstrate the capacity of the air conditioning system. The air conditioning system has a simple structure and high accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0061] Figure 1 is a structural diagram of an air conditioner provided according to an exemplary embodiment;

[0062] Figure 2 A schematic diagram of the system structure of an air conditioner according to an exemplary embodiment;

[0063] Figure 3 A hardware configuration block diagram of an air conditioner according to an exemplary embodiment;

[0064] Figure 4 This is a schematic diagram of the structure of a controller provided according to an exemplary embodiment of the present application;

[0065] Figure 5 This is a schematic diagram of the interaction between the controller of the air conditioner and the terminal device according to an exemplary embodiment of the present application;

[0066] Figure 6 The calculation logic of the air conditioning system capacity value in the cooling state of the air conditioner provided according to the exemplary embodiment is as follows;

[0067] Figure 7 Another calculation logic for the air conditioning coefficient capacity value in the cooling mode of the air conditioner provided according to an exemplary embodiment;

[0068] Figure 8 The calculation logic of the second latent heat of vaporization is provided according to an exemplary embodiment;

[0069] Figure 9 The calculation logic of the air conditioning system capacity value in the heating condition of the air conditioner provided according to the exemplary embodiment is as follows;

[0070] Figure 10 Another calculation logic for the air conditioning coefficient capacity value in the heating mode of the air conditioner provided according to an exemplary embodiment;

[0071] In the above picture:

[0072] Air conditioner 100; bus 81; memory 82; processor 83; communication interface 84; controller 8;

[0073] Throttling device 3; compressor 4; condenser 2; evaporator 1; indoor unit 6; outdoor unit 7;

[0074] Indoor temperature detection device 11; outdoor temperature detection device 12; terminal device 103; indoor fan 9;

[0075] Outdoor fan 10. DETAILED DESCRIPTION

[0076] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0077] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying 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 therefore should not be understood as limiting the present invention.

[0078] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections via an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0079] Reference Figure 1 The air conditioner 100 in the figure has: an indoor unit. Taking an indoor hanging unit (shown in the figure) as an example, the indoor hanging unit is usually installed on an indoor wall or the like. For another example, an indoor cabinet unit (not shown in the figure) is also a type of indoor unit.

[0080] The outdoor unit is usually installed outdoors and is used for heat exchange in the indoor environment.

[0081] In addition, Figure 1 In the figure, since the outdoor unit is located outdoors on the opposite side of the indoor unit across the wall, the outdoor unit is indicated by a dotted line.

[0082] In this application, the indoor unit 16 includes but is not limited to a wall-mounted air conditioner 100 , a cabinet air conditioner 100 , and a ducted air conditioner.

[0083] The indoor unit includes an indoor casing, which is used to form the outline of the indoor unit and accommodate the internal components of the indoor unit.

[0084] An indoor air inlet is formed on the indoor shell and is used for allowing indoor air to enter the indoor shell.

[0085] An indoor air outlet is formed on the indoor housing. The indoor air outlet is used to discharge the air in the indoor housing. The indoor air enters the indoor housing through the indoor air inlet and is then blown out from the indoor air outlet.

[0086] The indoor unit also includes an indoor heat exchanger. The indoor heat exchanger is installed in the indoor housing and is used to exchange heat with the airflow entering the indoor housing.

[0087] The indoor unit further comprises an indoor fan 9. The indoor fan 9 is installed in the indoor housing, and the indoor fan 9 rotates to allow indoor wind to enter the indoor housing, and the indoor wind exchanges heat with the indoor heat exchanger and flows out of the indoor housing.

[0088] In some embodiments, the indoor fan 9 is configured as a cross-flow fan.

[0089] The air conditioner 100 further includes an outdoor unit. The outdoor unit is installed outdoors. The indoor unit and the outdoor unit are connected by a pipeline for the flow of refrigerant.

[0090] The outdoor unit includes an outdoor housing. This housing defines the unit's exterior and houses multiple components that form the cooling or heating cycle.

[0091] An outdoor air inlet is formed on the outdoor shell and is used for allowing outdoor wind to enter the outdoor shell.

[0092] The outdoor housing is provided with an outdoor air outlet. The outdoor air outlet is used to discharge the air in the outdoor housing. The outdoor air enters the outdoor housing through the outdoor air inlet and is then blown out through the outdoor air outlet.

[0093] The outdoor unit also includes an outdoor heat exchanger. The outdoor heat exchanger is installed in the outdoor housing and is used to exchange heat with the airflow entering the outdoor housing.

[0094] The outdoor unit further includes an outdoor fan 10. The outdoor fan 10 is installed in the outdoor housing, and the outdoor fan 10 rotates to allow outdoor wind to enter the outdoor housing, and the outdoor wind exchanges heat with the outdoor heat exchanger and flows out of the outdoor housing.

[0095] In some embodiments, the outdoor fan 10 is configured as a cross-flow fan.

[0096] Reference Figure 2 1 shows the connection structure of the air conditioning system. The air conditioner 100 includes a refrigerant circuit. By circulating the refrigerant in the refrigerant circuit, a vapor compression refrigeration cycle can be performed. Connecting pipes are used to connect the indoor unit and the outdoor unit to form a refrigerant circuit for circulating the refrigerant.

[0097] The air conditioning system in the present application includes a compressor 4 , which can compress a gaseous refrigerant at a high temperature and high pressure and discharge the compressed gaseous refrigerant.

[0098] The compressor 4 includes an air intake port. Refrigerant flows into the compressor 4 from the air intake port to be compressed.

[0099] The compressor 4 includes an exhaust port. Refrigerant enters the compressor 4 from the air intake port and is compressed by the compressor 4 and then discharged from the exhaust port.

[0100] The air conditioning system includes an indoor heat exchanger for exchanging heat with the indoor air.

[0101] The air conditioning system includes an outdoor heat exchanger for exchanging heat with outdoor wind.

[0102] The air conditioning system also includes a four-way valve. A first port of the four-way valve is connected to the exhaust port of compressor 4. A second port of the four-way valve is connected to the intake port of compressor 4. A third port of the four-way valve is connected to the indoor heat exchanger. A fourth port of the four-way valve is connected to the outdoor heat exchanger.

[0103] The air conditioning system also includes a throttling device 3. This device is located between the outdoor heat exchanger and the indoor heat exchanger. This device is used to throttle the flow of the refrigerant. This device expands the high-temperature, high-pressure liquid refrigerant condensed in the condenser 2 into a low-pressure liquid refrigerant.

[0104] The indoor heat exchanger and the outdoor heat exchanger function as a condenser 2 or an evaporator 1. When the indoor heat exchanger functions as a condenser 2, the air conditioner 100 functions as a heater in a heating mode. When the indoor heat exchanger functions as an evaporator 1, the air conditioner 100 functions as a cooler in a cooling mode.

[0105] The air conditioner 100 includes a refrigerant circuit in which refrigerant circulates through a circuit consisting of a compressor 4 , a condenser 2 , a throttling device 3 , and an evaporator 1 .

[0106] The multi-split air conditioner 100 uses the refrigerant flow to blow out air conditioning 100 wind that is higher than the indoor temperature, air conditioning 100 wind that is lower than the indoor temperature, or air conditioning 100 wind that is the same as the indoor temperature to adjust the temperature and humidity of the indoor environment; or use the rotation speed of the indoor fan 9 to adjust the air flow rate of the indoor environment.

[0107] When the air conditioner 100 is in cooling mode, the refrigerant from the compressor 4 is condensed in the outdoor heat exchanger. The condensed refrigerant then flows through the throttling device 3 and expands. The expanded condensate evaporates in the indoor heat exchanger. The evaporated refrigerant then circulates back into the compressor 4.

[0108] When the air conditioner 100 is in heating mode, the refrigerant from the compressor 4 flows through the indoor heat exchanger and condenses. The condensed refrigerant then expands by flowing through the throttling device 3. The expanded condensed refrigerant evaporates through the outdoor heat exchanger. The evaporated refrigerant then circulates back to the compressor 4.

[0109] Figure 3 FIG. 1 is a block diagram of the hardware configuration of the air conditioner 100 according to an exemplary embodiment of the present application. Figure 3 , the air conditioner 100 includes one or more of the following.

[0110] In some embodiments, the air conditioner 100 includes an indoor temperature detection device 11. The indoor temperature detection device 11 is mounted on the indoor housing of the indoor unit. In some embodiments, it can be mounted on the indoor housing to detect the indoor temperature.

[0111] In some embodiments, the indoor temperature detection device 11 can be installed at the indoor air inlet to detect the temperature of the airflow entering the indoor housing, thereby reducing the interference of other indoor factors on the airflow entering the indoor housing.

[0112] In some embodiments, the air conditioner 100 includes an outdoor temperature detection device 12. The outdoor temperature detection device 12 is mounted on the outdoor housing of the outdoor unit. In some embodiments, the outdoor housing can be mounted on the outdoor housing to detect the outdoor temperature.

[0113] In some embodiments, the outdoor temperature detection device 12 may be installed at the outdoor air inlet to detect the temperature of the airflow entering the outdoor housing, thereby reducing the influence of other outdoor factors on the temperature of the airflow entering the outdoor housing.

[0114] Those skilled in the art will understand that Figure 3 The hardware structure shown in the figure does not constitute a limitation on the air conditioner 100. The air conditioner 100 may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0115] In some implementations of this embodiment, the controller 8 can be used to operate the compressor 4, the throttling device 3, the indoor fan 9, the outdoor fan 10, etc., so that the air conditioner 100 can operate to achieve various predetermined functions of the air conditioner 100.

[0116] In some implementations of this embodiment, the controller 8 may obtain the operating current value of the compressor 4 at each moment, and obtain the operating frequency f and operating power of the compressor 4 according to the operating current value.

[0117] In this application, for the sake of convenience, the operating frequency of the compressor 4 detected under the cooling condition is defined as the first operating frequency, and the operating frequency of the compressor 4 detected under the heating condition is defined as the second operating frequency.

[0118] It is known that the operating frequency f of the compressor 4 can be calculated from the operating current value or by detecting the speed of the compressor 4. The operating power of the compressor 4 can also be detected by a power meter installed in the circuit system of the compressor 4.

[0119] In some embodiments, the controller 8 may obtain the operating current value of the indoor fan 9 at each moment, and obtain the first rotational speed of the indoor fan 9 according to the operating current value.

[0120] In some embodiments, the controller 8 may obtain the operating current value of the outdoor fan 10 at each moment, and obtain the second speed of the outdoor fan 10 according to the operating current value.

[0121] In some embodiments, the air conditioner 100 includes a controller 8 for sending instructions to the air conditioner 100 to control the working process of the air conditioner 100.

[0122] The controller 8 is used to coordinate the operation of the entire air conditioner 100. This includes receiving user instructions, operating in cooling mode, heating mode, blowing mode, shutdown mode, cleaning mode, ion emission device self-cleaning mode, and uploading the operating status of the air conditioner 100 to the cloud.

[0123] The controller 8 includes a memory 212. The memory 212 may include a high-speed random access memory 212 (RAM) or a non-volatile memory 212 (NVM).

[0124] For example, there is at least one disk storage 212. The storage 212 is used to store programs.

[0125] Reference Figure 4 The indoor controller 821 includes a communication interface 214. The communication interface 214 is used to implement communication with related components.

[0126] The communication interface 214 of the controller 821 is used to communicate with the indoor temperature detection device 11, the outdoor temperature detection device 12, the indoor fan 9, the outdoor fan 10, and the compressor 4. After receiving corresponding electronic control signals, it can control the various components to perform corresponding actions. For example, when performing an air conditioning system capacity test, it obtains the speed of the indoor fan 9 or outdoor fan 10, the operating frequency of the compressor 4, and the feedback value of the temperature detection device, and outputs the calculated air conditioning system capacity value.

[0127] The controller 821 includes a processor 213. The processor 213 is configured to execute executable modules stored in the memory 212, such as computer programs. The computer program codes may be in source code form, object code form, executable file, or some other form thereof.

[0128] The controller 821 includes a bus 211. The bus 211 is used to connect the communication interface 214 and the processor 213. The bus 211 can be an ISA bus 211, a PCI bus 211, or an EISA bus 211.

[0129] The controller 821 includes at least one software function module that can be stored in the memory 212 in the form of software or firmware.

[0130] In this application, after receiving the execution instruction, the processor 213 executes the program to implement Figure 6-10 The relevant control logic is shown in .

[0131] In some implementations of this embodiment, the air conditioner 100 is further provided with a remote controller. The remote controller has the function of communicating with the controller 8 using, for example, infrared or other communication methods. The remote controller is used to allow the user to perform various controls on the air conditioner 100 and to enable interaction between the user and the air conditioner 100.

[0132] In some embodiments, the air conditioner 100 also includes a communicator. The communicator is connected to the controller 8 and is used to establish communication connections with other network entities. Taking the RF module as an example, the RF module can be used to receive and transmit signals. Specifically, it sends received information to the controller 8 for processing; in addition, it transmits signals generated by the controller 8. Typically, the RF circuit may include, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier (LNA), a duplexer, and the like.

[0133] For example, the air conditioner 100 may receive a control instruction sent by the terminal device 103 through the communicator, and perform corresponding processing according to the control instruction to achieve interaction between the user and the air conditioner 100 .

[0134] Figure 5 1 is a schematic diagram of the interaction between the controller 8 of the air conditioner 100 and the terminal device 103 according to an exemplary embodiment of the present application.

[0135] like Figure 5 As shown, the terminal device 103 can establish a communication connection with the controller 8 of the air-conditioning system. Exemplarily, any known network communication protocol can be used to establish the communication connection. The above-mentioned network communication protocol can be various wired or wireless communication protocols, such as Ethernet, universal serial bus 81 (USB), FireWire (FIREWIRE), any cellular network communication protocol (such as 3G / 4G / 5G), Bluetooth, wireless fidelity (wireless fidelity, Wi-Fi), NFC or any other suitable communication protocol. The above-mentioned communication connection can be a Bluetooth connection, NFC, Zigbee, wireless fidelity (wireless fidelity, Wi-Fi), etc. The embodiment of the present application does not impose specific restrictions on this.

[0136] It should be noted that Figure 5The terminal device 103 shown is only an example of the terminal device 103. The terminal device 103 in this application can be a remote control, a mobile phone, a tablet computer, a personal computer (PC), a personal digital assistant (PDA), a smart watch, a netbook, a wearable electronic device, an augmented reality (AR) device, a virtual reality (VR) device, a robot, etc. This application does not impose any special restrictions on the specific form of the terminal device 103.

[0137] In some embodiments, the air conditioning system capacity is obtained by calculating the inlet and outlet air enthalpy values ​​through the inlet and outlet temperature sensors of the indoor unit.

[0138] The above embodiment increases the hardware investment of the air conditioner 100 , and the estimation of enthalpy value only by temperature has the problem of low accuracy.

[0139] This application aims to calculate the coefficient of performance of air conditioner 100 without adding additional hardware sensors. When air conditioner 100 is operating in cooling mode, air enters the indoor unit for heat exchange, which involves two types of heat: sensible heat exchange between the air and the refrigerant due to the temperature difference, and latent heat exchange due to the formation of condensed water in the air. By calculating these two types of heat, the air conditioning system's performance can be calculated.

[0140] In some embodiments, reference Figure 6 The controller 8 is configured to obtain the first rotation speed of the indoor fan 9, the first operating frequency of the compressor 4 and the indoor temperature after receiving the first signal (S601).

[0141] In some embodiments, a first logical operation is performed based on the first rotation speed and the indoor temperature to obtain a first air volume entering the indoor heat exchanger ( S602 ).

[0142] In some embodiments, a second logical operation is performed based on the first operating frequency, the indoor temperature, and the first air volume to obtain a first latent heat of vaporization ( S603 ).

[0143] In some embodiments, a third logical operation is performed based on the first operating frequency and the first latent heat of vaporization to obtain the first sensible heat of air ( S604 ).

[0144] In some embodiments, a fourth logical operation is performed based on the first latent heat of vaporization and the first sensible heat of air to obtain an air conditioning system capacity value (S605); wherein, in the fourth logical operation, the air conditioning system capacity value is proportional to the sum of the first latent heat of vaporization and the first sensible heat of air.

[0145] In some embodiments, the operating frequency of the compressor 4 is adjusted according to the relationship between the air conditioning system capacity value and the preset capacity range ( S606 ).

[0146] It can be known that after the controller 8 receives the first signal, the controller 8 controls the air conditioner 100 to execute the cooling mode.

[0147] In the above steps, there is no need to perform enthalpy calculation using the humidity value obtained by the humidity detection device as in the related art, so the amount of calculation is reduced, and the requirements for the computing power of the air conditioner 100 are lowered, which facilitates universal use and promotion.

[0148] At the same time, through the above embodiment, without adding air conditioning system components, the latent heat exchange and sensible heat exchange of the air in the cooling mode are calculated, and then the air conditioning system capacity in the cooling mode is calculated. The air conditioning system is simple and highly accurate.

[0149] exist Figure 6 In step S601, the first rotation speed, the first operating frequency and the indoor temperature are obtained. The data of the three parameters can be received together through multiple interfaces.

[0150] In some embodiments, the first rotation speed and the indoor temperature may be received first (S901), and then the first operating frequency may be received (S902). Figure 9 .

[0151] In some embodiments, in the first logical operation, the first air volume is proportional to the product of the indoor speed parameter consisting of the first speed and the indoor temperature parameter consisting of the indoor temperature.

[0152] The indoor speed parameter is the sum of the first speed and the first parameter c_m1 and the speed reference value V of the indoor fan 9. fanA The ratio of is formed through calculation.

[0153] The indoor temperature parameter is the sum of the indoor temperature and the second parameter c_m2 and the indoor temperature reference value T airA The ratio of is formed through calculation.

[0154] In some embodiments, the first air volume of air entering the indoor heat exchanger is defined as m1. The indoor speed parameter is the sum of the first speed and the first parameter c_m1 and the speed reference value V of the indoor fan 9. fanA The ratio is obtained by raising it to the power of n1.

[0155]

[0156] Among them, V fan is the first speed of the indoor fan 9, T airis the indoor temperature, c_m1, c_m2, n1 are constants, V fanA is the reference value of the speed of the indoor fan 9, T airA is the indoor temperature reference value, and m_A is the indoor unit air volume calculation reference value.

[0157] In some embodiments, in the second logical operation, the indoor latent heat calculation temperature is obtained based on the first operating frequency and the indoor temperature based on the first sub-logical operation.

[0158] In some embodiments, in the first sub-logical operation, the indoor latent heat calculation temperature is proportional to the ratio of the sum of the first operating frequency and the third parameter to the power of n_air and the indoor temperature.

[0159]

[0160] Among them, T air_r is the indoor latent heat calculation temperature, c air_1 、n_air、c air_2 is a constant. air is the indoor temperature. fan is the first speed of the indoor fan 9.

[0161] In some embodiments, after obtaining the correlation between the first operating frequency of the compressor 4 , the indoor temperature, and the indoor latent heat calculation temperature, corresponding constants are obtained by using laboratory fitting.

[0162] Compared with the related art that uses humidity values ​​to calculate enthalpy values ​​and then obtains the air-conditioning system capacity value, this application does not require additional hardware components by obtaining the operating parameters of the compressor 4, and can realize multiple uses of logical calculations, reducing computing pressure.

[0163] Exemplarily, in the present application, the calculation of the air-conditioning system capacity value is performed in coordination with the adjustment logic of the operating frequency of the compressor 4 .

[0164] In some embodiments, the corresponding latent heat of vaporization value is obtained based on the second sub-logical operation based on the indoor latent heat calculation temperature to obtain the latent heat per unit air volume.

[0165] R air =f(T air_r )

[0166] Among them, latent heat of vaporization refers to the heat absorbed by a unit mass of a certain liquid substance during the vaporization process when the temperature remains unchanged. The unit of latent heat of vaporization is kilojoule / kilogram.

[0167] In the above, using the indoor latent heat to calculate the temperature to obtain the corresponding latent heat of vaporization value is a conventional technology, which is not within the scope of protection of this application and will not be described in detail in this specification.

[0168] In some embodiments, in the second sub-logical operation, the first latent heat of vaporization is proportional to the product of the first air volume and the latent heat of vaporization value.

[0169] In some embodiments, the first latent heat of vaporization is obtained based on the first air volume and the latent heat of vaporization value according to a third sub-logical operation.

[0170] Q1 _air =m1*R air *a 1_c

[0171] Among them, Q1 _air is the first latent heat of vaporization, m1 is the first air volume of the indoor heat exchanger, R air is the latent heat of vaporization, a 1_c is an engineering experience constant.

[0172] In some embodiments, in the third logical operation, the first air sensible heat is proportional to the product of a frequency parameter consisting of the first operating frequency and a latent heat parameter consisting of the first latent heat of vaporization.

[0173] In some embodiments, the frequency parameter is formed by the n 2 power of the ratio of the first operating frequency of the compressor 4 to the frequency reference value.

[0174] In some embodiments, the latent heat parameter is composed of a ratio of the first vaporization latent heat to a reference indoor latent heat value.

[0175] In some embodiments, the first air sensible heat is specifically set to:

[0176]

[0177] Among them, Q2 _air is the first air sensible heat, Fre_A is the frequency calculation reference value, Q1 _air_A is the indoor latent heat reference value, n2, b 1_c 、a 2_c is a constant.

[0178] In some embodiments, the air conditioning system capacity value Q under cooling conditions _c The value is obtained by adding the first sensible heat of air and the first latent heat of vaporization. The specific calculation formula is:

[0179] Q _c =a_c*(Q1 _air +Q2 _air )

[0180] Among them, a_c is the engineering experience constant, Q1 _air is the first latent heat of vaporization, Q2 _air is the first air sensible heat.

[0181] In some embodiments, reference Figure 7 , the controller 8 is configured to obtain a second rotation speed of the outdoor fan 10, an outdoor air temperature and a second operating frequency of the compressor 4 after receiving the second signal (S701).

[0182] In some embodiments, a fifth logical operation is performed based on the second rotation speed and the outdoor air temperature to obtain a second air volume entering the outdoor heat exchanger ( S702 ).

[0183] In some embodiments, a sixth logical operation is performed based on the first operating frequency, the outdoor air temperature, and the second air volume to obtain a second latent heat of vaporization ( S703 ).

[0184] In some embodiments, a seventh logical operation is performed based on the second operating frequency and the second latent heat of vaporization to obtain a second sensible heat of air ( S704 ).

[0185] In some embodiments, an eighth logical operation is performed based on the second latent heat of vaporization and the second sensible heat of air to obtain an air conditioning system capacity parameter (S705), wherein, in the eighth logical operation, the air conditioning system capacity parameter is proportional to the sum of the second latent heat of vaporization and the second sensible heat of air.

[0186] In some embodiments, the air conditioning system capacity value is obtained through a ninth logical operation based on the coefficient capacity parameter of the air conditioner 100 and the operating power of the compressor 4 ( S706 ).

[0187] In some embodiments, the operating frequency of the compressor 4 is adjusted according to the relationship between the air conditioning system capacity value and the preset capacity range ( S707 ).

[0188] It can be known that, after the controller 8 receives the second signal, the controller 8 controls the air conditioner 100 to execute the heating mode.

[0189] In the above steps, there is no need to perform enthalpy calculation using the humidity value obtained by the humidity detection device as in the related art, so the amount of calculation is reduced, and the requirements for the computing power of the air conditioner 100 are lowered, which facilitates universal use and promotion.

[0190] At the same time, through the above embodiment, without adding air conditioning system components, the latent heat exchange and sensible heat exchange of the air in the heating mode are calculated, and then the air conditioning system capacity in the heating mode is calculated. The air conditioning system is simple and highly accurate.

[0191] exist Figure 7 In step S701, the second rotation speed, the second operating frequency and the outdoor temperature are obtained. The data of the three parameters can be received together using multiple interfaces.

[0192] In some embodiments, the second rotation speed and the outdoor temperature may be received first (S1001), and then the second operating frequency may be received (S1002). Figure 10 .

[0193] In some embodiments, in the fifth logical operation, the second air volume is proportional to the product of the outdoor speed parameter consisting of the second speed and the outdoor temperature parameter consisting of the outdoor air temperature;

[0194] The outdoor speed parameter is the sum of the second speed and the fifth parameter c_x1 and the speed reference value V of the outdoor fan 10. fanB The ratio of is formed by operation;

[0195] The outdoor temperature parameter is the sum of the outdoor temperature and the sixth parameter c_x2 and the outdoor temperature reference value T airB The ratio of is formed through calculation.

[0196] In some embodiments, the second air volume of air entering the outdoor heat exchanger is defined as m2. The second air volume is obtained by logical operation based on the outdoor temperature and the second speed. The outdoor speed parameter is the sum of the second speed and the fifth parameter c_x1 and the speed reference value V of the outdoor fan 10. fanB The ratio is obtained by raising y1 to the power of y1.

[0197] in,

[0198]

[0199] Among them, V fanout is the second speed of the outdoor fan 10, T airout is the outdoor temperature, c_x1, c_x2, y1 are constants, V fanB is the reference value of the speed of the outdoor fan 10, T airB is the outdoor temperature reference value, and m_B is the outdoor unit air volume calculation reference value.

[0200] In some embodiments, reference Figure 8 In the sixth logical operation, the outdoor latent heat calculation temperature is obtained based on the second operating frequency and the outdoor temperature based on the fourth sub-logical operation (S801).

[0201] In some embodiments, in the fourth sub-logical operation, the outdoor latent heat calculation temperature is correlated with the second operating frequency and the seventh parameter c air_3 The ratio of the sum to the power of y_air is proportional to the indoor temperature.

[0202]

[0203] Among them, T air_rout is the outdoor latent heat calculation temperature, T airout is the outdoor temperature, Fre is the second operating frequency of the compressor 4, c air_4 、c air_3 and y_air are constants.

[0204] In some embodiments, after obtaining the correlation between the second operating frequency of the compressor 4 , the outdoor temperature, and the outdoor latent heat calculation temperature, corresponding constants are obtained by using laboratory fitting.

[0205] Compared with the related art that uses humidity values ​​to calculate enthalpy values ​​and then obtains the air-conditioning system capacity value, this application does not require additional hardware components by obtaining the operating parameters of the compressor 4, and can realize multiple uses of logical calculations, reducing computing pressure.

[0206] Exemplarily, in the present application, the calculation of the air-conditioning system capacity value is performed in coordination with the adjustment logic of the operating frequency of the compressor 4 .

[0207] In some embodiments, based on the indoor latent heat calculation temperature, a corresponding latent heat of vaporization value is obtained based on a fifth sub-logical operation to obtain the latent heat per unit air volume ( S802 ).

[0208] In some embodiments, the latent heat of vaporization value R airout Calculate the temperature T from the outdoor latent heat air_rout Get. Specific.

[0209] R airout =f(T air_rout )

[0210] Among them, latent heat of vaporization refers to the heat absorbed by a unit mass of a certain liquid substance during the vaporization process when the temperature remains unchanged. The unit of latent heat of vaporization is kilojoule / kilogram.

[0211] In the above, using the outdoor latent heat calculation temperature to obtain the corresponding latent heat of vaporization value is a conventional technology, which is not within the scope of protection of this application and will not be described in detail in this specification.

[0212] In some embodiments, a second latent heat of vaporization is obtained based on a sixth sub-logical operation based on the second air volume and the latent heat of vaporization value ( S803 ).

[0213] In some embodiments, in the sixth sub-logical operation, the second latent heat of vaporization is proportional to the product of the second air volume and the latent heat of vaporization value.

[0214] In some embodiments, the second latent heat of vaporization is obtained based on a sixth sub-logical operation based on the second air volume and the latent heat of vaporization value.

[0215] Q1 _airout =m2*R airout *a 3_c

[0216] Among them, Q1 _airout is the second latent heat of vaporization, m2 is the second air volume of the indoor heat exchanger, R airout is the latent heat of vaporization, a 3_c is an engineering experience constant.

[0217] In some embodiments, in the seventh logical operation, the second air sensible heat is proportional to a product of a second frequency parameter consisting of a second operating frequency and a second latent heat parameter consisting of a second latent heat of vaporization.

[0218] In some embodiments, the second frequency parameter is formed by the y2 power of the ratio of the second operating frequency to the frequency reference value.

[0219] In some embodiments, the second latent heat parameter is a combination of the second vaporization latent heat and the outdoor latent heat reference value Q1 _air_B The ratio composition.

[0220] In some embodiments, the second air sensible heat is specifically set to:

[0221]

[0222] Among them, Q2 _airout is the second air sensible heat, Fre_B is the frequency calculation reference value, Q1 _air_B is the indoor latent heat reference value, y2, b 2_c 、a 4_c is a constant.

[0223] In some embodiments, the air conditioning system capacity value Q under heating conditions _c The second sensible heat of air and the second latent heat of vaporization are added together to obtain the value. The specific calculation formula is:

[0224] Q _cout =b_c*(Q1 _airout +Q2 _airout )+c_c*W

[0225] Among them, b_c and c_c are engineering experience constants, Q1 _airout is the second latent heat of vaporization, Q2 _airout is the sensible heat of the second air. W is the operating power of the compressor 4.

[0226] The air conditioner 100 of the present application includes a refrigerant circuit consisting of a compressor 4, a condenser 2, a throttling device 3, and an evaporator 1, an indoor fan 9, and an indoor temperature detection device 11 for detecting the indoor temperature. Upon receiving a first signal, the air conditioner 100 obtains a first speed of the indoor fan 9, a first operating frequency of the compressor 4, and the indoor temperature. A first logical operation is performed based on the first speed and the indoor temperature to obtain a first air volume entering the indoor heat exchanger.

[0227] Performing a second logical operation based on the first operating frequency, the indoor temperature, and the first air volume to obtain a first latent heat of vaporization;

[0228] Performing a third logical operation based on the first operating frequency and the first latent heat of vaporization to obtain a first sensible heat of air;

[0229] performing a fourth logical operation based on the first latent heat of vaporization and the first sensible heat of air to obtain an air conditioning system capacity value; wherein, in the fourth logical operation, the air conditioning system capacity value is proportional to the sum of the first latent heat of vaporization and the first sensible heat of air;

[0230] The operating frequency of the compressor 4 is adjusted according to the relationship between the air-conditioning system capacity value and the preset capacity range.

[0231] Without adding any additional hardware sensors, this application uses the operating frequency of the compressor 4, the fan speed and the indoor temperature to calculate the latent heat exchange and the sensible heat exchange of the air conditioner 100, and then obtains the air conditioning system capacity value used to demonstrate the capacity of the air conditioning system. The air conditioning system has a simple structure and high accuracy.

[0232] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

[0233] For ease of explanation, the above description has been presented in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations are possible. The above embodiments have been selected and described to better explain the principles and practical applications, thereby enabling those skilled in the art to better utilize the embodiments and various variations of the embodiments suitable for specific use considerations.

Claims

1. An air conditioner, characterized in that: include: A refrigerant circuit circulates the refrigerant in a circuit consisting of a compressor, a condenser, a throttling device, and an evaporator, wherein one of the condenser and the evaporator is an outdoor heat exchanger and the other is an indoor heat exchanger; An indoor fan, which is arranged near the indoor heat exchanger and is used to deliver the heat-exchanged air into the room; An indoor temperature detection device is provided in the indoor unit and is used to detect the indoor temperature; The controller is configured to, upon receiving the first signal, obtain a first speed of the indoor fan, a first operating frequency of the compressor, and the indoor temperature; performing a first logical operation based on the first rotation speed and the indoor temperature to obtain a first air volume entering the indoor heat exchanger; performing a second logical operation based on the first operating frequency, the indoor temperature, and the first air volume to obtain a first latent heat of vaporization; Performing a third logical operation based on the first operating frequency and the first latent heat of vaporization to obtain a first sensible heat of air; performing a fourth logical operation based on the first latent heat of vaporization and the first sensible heat of the air to obtain an air conditioning system capacity value; wherein, in the fourth logical operation, the air conditioning system capacity value is proportional to the sum of the first latent heat of vaporization and the first sensible heat of the air; The operating frequency of the compressor is adjusted according to the relationship between the air conditioning system capacity value and the preset capacity range.

2. The air conditioner according to claim 1, characterized in that In the second logical operation, an indoor latent heat calculation temperature is obtained based on the first operating frequency and the indoor temperature according to a first sub-logical operation; Based on the indoor latent heat calculation temperature, a corresponding latent heat of vaporization value is obtained based on a second sub-logical operation to obtain the latent heat per unit air volume; A first latent heat of vaporization is obtained based on a third sub-logical operation based on the first air volume and the latent heat of vaporization.

3. The air conditioner according to claim 1, characterized in that In the first logical operation, the first air volume is proportional to the product of the indoor speed parameter composed of the first speed and the indoor temperature parameter composed of the indoor temperature.

4. The air conditioner according to claim 2, characterized in that In the first sub-logical operation, the indoor latent heat calculation temperature is proportional to the ratio of the M-th power of the sum of the first operating frequency and the third parameter to the indoor temperature.

5. The air conditioner according to claim 2 or 4, characterized in that: In the second sub-logical operation, the first latent heat of vaporization is proportional to the product of the first air volume and the latent heat of vaporization.

6. The air conditioner according to claim 1, characterized in that In the third logical operation, the first air sensible heat is proportional to the product of a frequency parameter consisting of the first operating frequency and a latent heat parameter consisting of the first latent heat of vaporization; The frequency parameter is composed of the Nth power of the ratio of the first operating frequency to the frequency reference value; The latent heat parameter is composed of a ratio of the first vaporization latent heat to a latent heat reference value.

7. The air conditioner according to claim 1, wherein: Also includes: An outdoor fan, which is arranged near the outdoor heat exchanger and is used to send the heat-exchanged air to the outdoors; An outdoor temperature detection device is provided outdoors and is used to detect the outdoor air temperature; The controller is configured to, after receiving the second signal, obtain a second rotational speed of the outdoor fan, the outdoor air temperature, and a second operating frequency of the compressor; performing a fifth logical operation based on the second rotation speed and the outdoor air temperature to obtain a second air volume entering the outdoor heat exchanger; performing a sixth logical operation based on the first operating frequency, the outdoor air temperature, and the second air volume to obtain a second latent heat of vaporization; Performing a seventh logical operation based on the second operating frequency and the second latent heat of vaporization to obtain a second sensible heat of air; performing an eighth logical operation based on the second latent heat of vaporization and the second sensible heat of the air to obtain an air conditioning system capacity parameter, wherein, in the eighth logical operation, the air conditioning system capacity parameter is proportional to the sum of the second latent heat of vaporization and the second sensible heat of the air; Obtaining an air conditioning system capacity value by performing a ninth logical operation based on the air conditioning coefficient capacity parameter and the operating power of the compressor; The operating frequency of the compressor is adjusted according to the relationship between the air conditioning system capacity value and the preset capacity range.

8. The air conditioner according to claim 1, wherein: In the sixth logical operation, an outdoor latent heat calculation temperature is obtained based on the second operating frequency and the outdoor air temperature according to a fourth sub-logical operation; Based on the outdoor latent heat calculation temperature, a corresponding latent heat of vaporization value is obtained based on a fifth sub-logical operation to obtain the latent heat per unit air volume; A second latent heat of vaporization is obtained based on a sixth sub-logical operation based on the second air volume and the latent heat of vaporization.

9. The air conditioner according to claim 1, wherein: In the fifth logical operation, the second air volume is proportional to the product of the outdoor rotation speed parameter consisting of the second rotation speed and the outdoor temperature parameter consisting of the outdoor air temperature.

10. An air conditioner, characterized in that: A refrigerant circuit circulates the refrigerant in a circuit consisting of a compressor, a condenser, a throttling device, and an evaporator, wherein one of the condenser and the evaporator is an outdoor heat exchanger and the other is an indoor heat exchanger; An outdoor fan, which is arranged near the outdoor heat exchanger and is used to send the heat-exchanged air to the outdoors; An outdoor temperature detection device is provided in the outdoor unit and is used to detect the outdoor air temperature; The controller is configured to, after receiving the second signal, obtain a second speed of the outdoor fan, the outdoor air temperature, and a second operating frequency of the compressor; performing a fifth logical operation based on the second rotation speed and the outdoor air temperature to obtain a second air volume entering the outdoor heat exchanger; performing a sixth logical operation based on the first operating frequency, the outdoor air temperature, and the second air volume to obtain a second latent heat of vaporization; Performing a seventh logical operation based on the second operating frequency and the second latent heat of vaporization to obtain a second sensible heat of air; performing an eighth logical operation based on the second latent heat of vaporization and the second sensible heat of the air to obtain an air conditioning system capacity parameter, wherein, in the eighth logical operation, the air conditioning system capacity parameter is proportional to the sum of the second latent heat of vaporization and the second sensible heat of the air; Obtaining an air conditioning system capacity value through a ninth logical operation based on the air conditioning coefficient capacity parameter and the operating power of the compressor; The operating frequency of the compressor is adjusted according to the relationship between the air conditioning system capacity value and the preset capacity range.

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