Air conditioner and method for calculating its capacity

Abstract

The application provides an air conditioner and a capacity calculation method thereof. The air conditioner comprises a compressor, an indoor environment temperature sensor, an indoor coil temperature sensor, an outdoor environment temperature sensor, an outdoor coil temperature sensor and a controller. The controller is configured to obtain a power value of the air conditioner, an operation mode of the air conditioner, an indoor environment temperature, an indoor coil temperature, an outdoor environment temperature, an outdoor coil temperature and a frequency value of the compressor; and obtain a refrigerating capacity or a heating capacity of the air conditioner in the current operation mode according to the power value of the air conditioner, the operation mode of the air conditioner, the indoor environment temperature, the indoor coil temperature, the outdoor environment temperature, the outdoor coil temperature, the frequency value of the compressor and a capacity calculation formula of the air conditioner. The application does not need to increase additional devices, reduces the occupied space of the air conditioner and reduces the cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, and especially to an air conditioner and a capacity calculation method thereof. BACKGROUND

[0002] Since the air conditioner must have the capacity calculation function, and the air conditioner without the function is not allowed to sell, at present, the air conditioner can increase the temperature detection device and the pressure detection device at the inlet and outlet of the indoor motor evaporator, detect the temperature and pressure of the inlet and outlet of the evaporator, determine the inlet enthalpy and outlet enthalpy of the evaporator, and calculate the capacity of the air conditioner through the enthalpy difference method; or detect the exhaust temperature, suction temperature, and supplement air temperature of the air conditioner, determine the exhaust enthalpy value, suction enthalpy value, and lubricating oil enthalpy value, and comprehensively calculate the capacity of the air conditioner through the enthalpy difference method and correction.

[0003] However, the above method needs to increase additional devices in the air conditioner, occupies the internal space of the air conditioner, and the device structure is complex, resulting in high cost of the air conditioner. SUMMARY

[0004] The present application aims to solve at least one of the technical problems in the prior art.

[0005] To this end, one object of the present application is to provide an air conditioner which does not need to increase additional devices, reduces the occupied space of the air conditioner, and reduces the cost.

[0006] To this end, a second object of the present application is to provide a capacity calculation method of an air conditioner.

[0007] In order to achieve the above object, an embodiment of the first aspect of the present application provides an air conditioner, comprising: a compressor for performing the work of compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging to a condenser; an indoor environment temperature sensor for detecting an indoor environment temperature; an indoor coil temperature sensor for detecting an indoor coil temperature; an outdoor environment temperature sensor for detecting an outdoor environment temperature; an outdoor coil temperature sensor for detecting an outdoor coil temperature; a controller configured to: obtain a power value of the air conditioner, an operating mode of the air conditioner, the indoor environment temperature, the indoor coil temperature, the outdoor environment temperature, the outdoor coil temperature, and a frequency value of the compressor; and obtain a refrigerating capacity or a heating capacity of the air conditioner in the current operating mode according to the power value of the air conditioner, the operating mode of the air conditioner, the indoor environment temperature, the indoor coil temperature, the outdoor environment temperature, the outdoor coil temperature, the frequency value of the compressor, and a capacity calculation formula of the air conditioner.

[0008] According to the air conditioner provided in the embodiment of the present application, by obtaining the operation parameters of the air conditioner in the operation state, including the power value, the operation mode, the indoor environment temperature, the indoor coil temperature, the outdoor environment temperature, the outdoor coil temperature and the frequency value of the compressor, and by using the capacity calculation formula of the air conditioner to calculate the real-time capacity of the air conditioner in the current operation mode, i.e. to calculate the refrigerating capacity or the heating capacity of the air conditioner in real time, by using the capacity calculation formula of the air conditioner to calculate the real-time capacity, the capacity of the air conditioner is calculated without using the enthalpy difference method, so that the capacity calculation of the air conditioner is more convenient and accurate, and the additional device is not needed to realize the capacity detection of the air conditioner, so that the hardware cost is reduced while the hardware occupation space of the air conditioner is reduced.

[0009] In some embodiments, according to the power value of the air conditioner, the operation mode of the air conditioner, the indoor environment temperature, the indoor coil temperature, the outdoor environment temperature, the outdoor coil temperature, the frequency value of the compressor and the capacity calculation formula of the air conditioner, when the refrigerating capacity or the heating capacity of the air conditioner in the current operation mode is obtained, the controller is configured to: obtain the operation mode correction coefficient corresponding to the operation mode of the air conditioner, the indoor temperature correction coefficient corresponding to the indoor environment temperature and the indoor coil temperature, the outdoor temperature correction coefficient corresponding to the outdoor environment temperature and the outdoor coil temperature, and the frequency correction coefficient corresponding to the frequency value of the compressor; according to the operation mode of the air conditioner, the indoor environment temperature, the indoor coil temperature, the outdoor environment temperature, the outdoor coil temperature, the frequency value of the compressor, the indoor temperature correction coefficient, the outdoor temperature correction coefficient, the frequency correction coefficient and the operation mode correction coefficient, the energy efficiency value of the air conditioner in the current operation mode is obtained; the energy efficiency value and the power value are brought into the capacity calculation formula of the air conditioner, and the refrigerating capacity or the heating capacity of the air conditioner in the current operation mode is obtained.

[0010] In some embodiments, when the energy efficiency value of the air conditioner in the current operation mode is obtained according to the operation mode of the air conditioner, the indoor environment temperature, the indoor coil temperature, the outdoor environment temperature, the outdoor coil temperature, the frequency value of the compressor, the indoor temperature correction coefficient, the outdoor temperature correction coefficient, the frequency correction coefficient, and the operation mode correction coefficient, the controller is configured to: correct the indoor environment temperature and the indoor coil temperature according to the indoor temperature correction coefficient to obtain an indoor temperature correction value; correct the outdoor environment temperature and the outdoor coil temperature according to the outdoor temperature correction coefficient to obtain an outdoor temperature correction value; correct the frequency value of the compressor according to the frequency correction coefficient to obtain a frequency correction value; correct the operation mode of the air conditioner according to the operation mode correction coefficient to obtain an operation mode correction value; and obtain the energy efficiency value of the air conditioner in the current operation mode according to the indoor temperature correction value, the outdoor temperature correction value, the frequency correction value, the operation mode correction value, and an air conditioner energy efficiency calculation formula.

[0011] In some embodiments, when the indoor temperature correction value is obtained by correcting the indoor environment temperature and the indoor coil temperature according to the indoor temperature correction coefficient, the controller is configured to: calculate a temperature difference value of the indoor environment temperature and the indoor coil temperature to obtain an indoor temperature difference absolute value; and correct the indoor temperature difference absolute value according to the indoor temperature correction coefficient to obtain the indoor temperature correction value.

[0012] In some embodiments, when the outdoor temperature correction value is obtained by correcting the outdoor environment temperature and the outdoor coil temperature according to the outdoor temperature correction coefficient, the controller is configured to: calculate a temperature difference value of the outdoor environment temperature and the outdoor coil temperature to obtain an outdoor temperature difference absolute value; and correct the outdoor temperature difference absolute value according to the outdoor temperature correction coefficient to obtain the outdoor temperature correction value.

[0013] In some embodiments, the air conditioner energy efficiency calculation formula comprises:

[0014] EER =

|Tindoor-Tincoil| × A + |Toutdoor-Toutcoil| × B + C

[0015] wherein EER is the energy efficiency value of the air conditioner, Tindoor is the indoor environment temperature, Tincoil is the indoor coil temperature, A is the indoor temperature correction coefficient, Toutdoor is the outdoor environment temperature, Toutcoil is the outdoor coil temperature, B is the outdoor temperature correction coefficient, C is the frequency correction coefficient, and D is the operation mode correction coefficient.

[0016] In some embodiments, the capacity calculation formula comprises:

[0017] Q = P x EER

[0018] wherein Q is the cooling or heating capacity of the air conditioner, P is the power value of the air conditioner, and EER is the energy efficiency value of the air conditioner.

[0019] In some embodiments, after determining the cooling or heating capacity of the air conditioner in the current operation mode, the controller is further configured to send the cooling or heating capacity of the air conditioner to a user terminal and / or a display screen of the air conditioner.

[0020] To achieve the above object, embodiments of the second aspect of the present application propose an air conditioner capacity calculation method, which comprises: obtaining the power value of the air conditioner, the operation mode of the air conditioner, the indoor environment temperature, the indoor coil temperature, the outdoor environment temperature, the outdoor coil temperature, and the frequency value of the compressor; and obtaining the cooling or heating capacity of the air conditioner in the current operation mode according to the power value of the air conditioner, the operation mode of the air conditioner, the indoor environment temperature, the indoor coil temperature, the outdoor environment temperature, the outdoor coil temperature, the frequency value of the compressor, and an air conditioner capacity calculation formula.

[0021] According to the air conditioner capacity calculation method of the embodiments of the present application, by obtaining the operating parameters in the operating state of the air conditioner, including the power value, the operation mode, the indoor environment temperature, the indoor coil temperature, the outdoor environment temperature, the outdoor coil temperature, and the frequency value of the compressor, and by using the air conditioner capacity calculation formula to calculate the real-time capacity of the air conditioner in the current operation mode, i.e., to calculate the cooling or heating capacity of the air conditioner in real time, by using the air conditioner capacity calculation formula to calculate the real-time capacity, it is not necessary to calculate the capacity of the air conditioner according to the enthalpy difference method, so that the capacity calculation of the air conditioner is more convenient and accurate, and it is not necessary to realize the capacity detection of the air conditioner by adding additional devices, so that the hardware occupying space of the air conditioner is reduced, and the hardware cost is reduced.

[0022] In some embodiments, the refrigerating or heating capacity of the air conditioner in the current operation mode is obtained according to the power value of the air conditioner, the operation mode of the air conditioner, the indoor environment temperature, the indoor coil temperature, the outdoor environment temperature, the outdoor coil temperature, the frequency value of the compressor and the capacity calculation formula of the air conditioner, including: obtaining the operation mode correction coefficient corresponding to the operation mode of the air conditioner, the indoor temperature correction coefficient corresponding to the indoor environment temperature and the indoor coil temperature, the outdoor temperature correction coefficient corresponding to the outdoor environment temperature and the outdoor coil temperature, and the frequency correction coefficient corresponding to the frequency value of the compressor; obtaining the energy efficiency value of the air conditioner in the current operation mode according to the operation mode of the air conditioner, the indoor environment temperature, the indoor coil temperature, the outdoor environment temperature, the outdoor coil temperature, the frequency value of the compressor, the indoor temperature correction coefficient, the outdoor temperature correction coefficient, the frequency correction coefficient and the operation mode correction coefficient; and bringing the energy efficiency value and the power value into the capacity calculation formula of the air conditioner to obtain the refrigerating or heating capacity of the air conditioner in the current operation mode.

[0023] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings.

[0025] Figure 1 is a structural schematic diagram of an air conditioner according to an embodiment of the present application;

[0026] Figure 2 is a flowchart of a calculation method of an energy efficiency value of an air conditioner according to an embodiment of the present application;

[0027] Figure 3 is a flowchart of a calculation method of an indoor temperature correction value of an air conditioner according to an embodiment of the present application;

[0028] Figure 4 is a flowchart of a calculation method of an outdoor temperature correction value of an air conditioner according to an embodiment of the present application;

[0029] Figure 5 is a flowchart of a calculation method of an energy efficiency value of an air conditioner according to an embodiment of the present application;

[0030] Figure 6 is a flowchart of a calculation method of an energy efficiency value of an air conditioner according to an embodiment of the present application.

[0031] Reference signs: air conditioner 1;

[0032] Compressor 11; indoor ambient temperature sensor 12; indoor coil temperature sensor 13; outdoor ambient temperature sensor 14; outdoor coil temperature sensor 15; controller 16. DETAILED DESCRIPTION

[0033] Embodiments of the present application are described in detail below with reference to the attached drawings figures, and embodiments of the present application are described in detail below.

[0034] The air conditioner in the present application performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to air that has been adjusted and heat-exchanged.

[0035] The compressor compresses refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0036] The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-temperature and low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigeration effect by heat-exchanging with a material to be cooled using latent heat of evaporation of the refrigerant. Throughout the cycle, the air conditioner can adjust the temperature of an indoor space.

[0037] The outdoor unit of the air conditioner refers to a portion of the refrigeration cycle including the compressor and the outdoor heat exchanger, the indoor unit of the air conditioner includes the indoor heat exchanger, and the expansion valve can be provided in the indoor unit or the outdoor unit.

[0038] The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger serves as a condenser, the air conditioner serves as a heater in a heating mode, and when the indoor heat exchanger serves as an evaporator, the air conditioner serves as a cooler in a cooling mode.

[0039] Reference is made below Figures 1-5 An air conditioner 1 of an embodiment of the present application is described.

[0040] As Figure 1 shown, the air conditioner 1 of the embodiment of the present application includes a compressor 11, an indoor ambient temperature sensor 12, an indoor coil temperature sensor 13, an outdoor ambient temperature sensor 14, an outdoor coil temperature sensor 15, and a controller 16, wherein,

[0041] The compressor 11 is used to compress low-temperature, low-pressure refrigerant gas into high-temperature, high-pressure refrigerant gas and discharge it to the condenser; the indoor ambient temperature sensor 12 is used to detect the indoor ambient temperature; the indoor coil temperature sensor 13 is used to detect the indoor coil temperature; the outdoor ambient temperature sensor 14 is used to detect the outdoor ambient temperature; the outdoor coil temperature sensor 15 is used to detect the outdoor coil temperature; the controller 16 is configured to: acquire the power value of the air conditioner 1, the operating mode of the air conditioner 1, the indoor ambient temperature, the indoor coil temperature, the outdoor ambient temperature, the outdoor coil temperature, and the frequency value of the compressor 11; and obtain the cooling capacity or heating capacity of the air conditioner 1 under the current operating mode based on the power value of the air conditioner 1, the operating mode of the air conditioner 1, the indoor ambient temperature, the indoor coil temperature, the outdoor ambient temperature, the outdoor coil temperature, the frequency value of the compressor 11, and the capacity calculation formula of the air conditioner 1.

[0042] In this embodiment, after the air conditioner 1 is turned on, the controller 16 acquires the operating parameters of the air conditioner 1 in real time, including the power value of the air conditioner 1 (e.g., P) and the frequency value of the compressor 11; the operating mode of the air conditioner 1, which may include heating mode and cooling mode; the indoor ambient temperature (e.g., Tindoor) is acquired based on the indoor ambient temperature sensor 12, the indoor coil temperature (e.g., Tincoil) is acquired based on the indoor coil temperature sensor 13, the outdoor ambient temperature (e.g., Toutdoor) is acquired based on the outdoor ambient temperature sensor 14, and the outdoor coil temperature (e.g., Toutcoil) is acquired based on the outdoor coil temperature sensor 15.

[0043] After obtaining the above operating parameters, the capacity of air conditioner 1 is determined by using the capacity calculation formula of air conditioner 1 and combining it with the above operating parameters. For example, when the operating mode of air conditioner 1 is cooling mode, the cooling capacity of air conditioner 1 is determined by using the capacity calculation formula of air conditioner 1 and combining it with the above operating parameters; when the operating mode of air conditioner 1 is heating mode, the heating capacity of air conditioner 1 is determined by using the capacity calculation formula of air conditioner 1 and combining it with the above parameters.

[0044] According to an embodiment of the present invention, after the air conditioner 1 is turned on, the operating parameters of the air conditioner 1 at the time of operation are acquired in real time, including power value, operating mode, indoor ambient temperature, indoor coil temperature, outdoor ambient temperature, outdoor coil temperature and compressor 11 frequency value. The real-time capacity of the air conditioner 1 under the current operating mode is calculated using the capacity calculation formula of the air conditioner 1, that is, the cooling capacity or heating capacity of the air conditioner 1 is measured in real time. By using the capacity calculation formula of the air conditioner 1 to calculate the real-time capacity, it is not necessary to calculate the capacity of the air conditioner 1 according to the enthalpy difference method, which makes the capacity calculation of the air conditioner 1 more convenient and accurate, and it is not necessary to add an additional device to realize the capacity detection of the air conditioner 1. Thus, the hardware space occupied by the air conditioner 1 is reduced, and the hardware cost is reduced.

[0045] In some embodiments, when the cooling capacity or heating capacity of the air conditioner 1 in the current operating mode is obtained based on the power value of the air conditioner 1, the operating mode of the air conditioner 1, the indoor ambient temperature, the indoor coil temperature, the outdoor ambient temperature, the outdoor coil temperature, the frequency value of the compressor 11, and the capacity calculation formula of the air conditioner 1, the controller 16 is configured to: obtain the operating mode correction coefficient corresponding to the operating mode of the air conditioner 1, the indoor temperature correction coefficient corresponding to the indoor ambient temperature and the indoor coil temperature, the outdoor temperature correction coefficient corresponding to the outdoor ambient temperature and the outdoor coil temperature, and the frequency correction coefficient corresponding to the frequency value of the compressor 11; obtain the energy efficiency value of the air conditioner 1 in the current operating mode based on the operating mode of the air conditioner 1, the indoor ambient temperature, the indoor coil temperature, the outdoor ambient temperature, the outdoor coil temperature, the frequency value of the compressor 11, the indoor temperature correction coefficient, the outdoor temperature correction coefficient, the frequency correction coefficient, and the operating mode correction coefficient; and substitute the energy efficiency value and the power value into the capacity calculation formula of the air conditioner 1 to obtain the cooling capacity or heating capacity of the air conditioner 1 in the current operating mode.

[0046] In this embodiment, after obtaining the power value P of the air conditioner 1, the operating mode of the air conditioner 1, the indoor ambient temperature Tindoor, the indoor coil temperature Tincoil, the outdoor ambient temperature Toutdoor, the outdoor coil temperature Toutcoil, and the frequency value of the compressor 11, the controller 16 obtains the operating mode correction coefficient corresponding to the operating mode of the air conditioner 1, for example, denoted as D, based on engineering testing experience. The operating mode correction coefficient D is a constant. When the air conditioner 1 is in the cooling operating mode, the cooling capacity is the difference between the heat exchange of the outdoor unit and the heat work done by the compressor 11 in compressing the refrigerant. When the air conditioner 1 is in the heating operating mode, the heating capacity is the sum of the heat exchange of the outdoor unit and the heat work done by the compressor 11 in compressing the refrigerant. Therefore, the heating energy efficiency is usually greater than the cooling energy efficiency. When calculating the energy efficiency value of the air conditioner 1, the operating mode correction coefficient D is needed for mode correction.

[0047] Based on engineering testing experience, controller 16 obtains the indoor temperature correction coefficient corresponding to the indoor ambient temperature Tindoor and the indoor coil temperature Tincoil, for example, denoted as A, where the indoor temperature correction coefficient A is a constant; it obtains the outdoor temperature correction coefficient corresponding to the outdoor ambient temperature Toutdoor and the outdoor coil temperature Toutcoil, for example, denoted as B, where the outdoor temperature correction coefficient B is a constant; and it obtains the frequency correction coefficient corresponding to the frequency value of compressor 11, for example, denoted as C, where the frequency correction coefficient C is a constant. When the heat exchange area of ​​the indoor and outdoor units is constant, if the circulation flow is larger, the heat dissipation efficiency of the heat exchanger is lower, and the energy efficiency value of air conditioner 1 is lower. When calculating the energy efficiency value of air conditioner 1, frequency correction coefficient C is needed for frequency correction.

[0048] After obtaining the indoor temperature correction coefficient A, outdoor temperature correction coefficient B, frequency correction coefficient C, and operating mode correction coefficient D, based on the operating mode of air conditioner 1, indoor ambient temperature Tindoor, indoor coil temperature Tincoil, outdoor ambient temperature Toutdoor, outdoor coil temperature Toutcoil, and the frequency value of compressor 11, and in conjunction with the above correction parameters, the energy efficiency value of air conditioner 1 under the current operating mode is obtained, for example denoted as EER. The energy efficiency value EER and the power value P are then substituted into the capacity calculation formula of air conditioner 1 to obtain the real-time capacity of air conditioner 1 under the current operating mode, for example denoted as Q, which is the real-time calculation of the cooling capacity or heating capacity of the air conditioner.

[0049] In some embodiments, when obtaining the energy efficiency value of the air conditioner 1 under the current operating mode based on the operating mode of the air conditioner 1, indoor ambient temperature, indoor coil temperature, outdoor ambient temperature, outdoor coil temperature, frequency value of the compressor 11, indoor temperature correction coefficient, outdoor temperature correction coefficient, frequency correction coefficient, and operating mode correction coefficient, the controller 16 is configured to: perform temperature correction on the indoor ambient temperature and indoor coil temperature according to the indoor temperature correction coefficient to obtain an indoor temperature correction value; perform temperature correction on the outdoor ambient temperature and outdoor coil temperature according to the outdoor temperature correction coefficient to obtain an outdoor temperature correction value; perform frequency correction on the frequency value of the compressor 11 according to the frequency correction coefficient to obtain a frequency correction value; correct the operating mode of the air conditioner 1 according to the operating mode correction coefficient to obtain an operating mode correction value; and obtain the energy efficiency value of the air conditioner 1 under the current operating mode based on the indoor temperature correction value, outdoor temperature correction value, frequency correction value, operating mode correction value, and the energy efficiency calculation formula of the air conditioner 1.

[0050] In an embodiment, such as Figure 2The diagram shows a flowchart of a method for calculating the energy efficiency value of an air conditioner according to an embodiment of the present invention. After obtaining the indoor temperature correction coefficient A, outdoor temperature correction coefficient B, frequency correction coefficient C, and operating mode correction coefficient D, the indoor ambient temperature (Tindoor) and indoor coil temperature (Tincoil) are corrected according to the indoor temperature correction coefficient A to obtain the outdoor temperature correction value; the outdoor ambient temperature (Toutdoor) and outdoor coil temperature (Toutcoil) are corrected according to the outdoor temperature correction coefficient B to obtain the outdoor temperature correction value; the frequency value of the compressor 11 is corrected according to the frequency correction coefficient C to obtain the frequency correction value; the operating mode of the air conditioner 1 is corrected according to the operating mode correction coefficient D to obtain the operating mode correction value; the indoor temperature correction value, outdoor temperature correction value, frequency correction value, and operating mode correction value are substituted into the energy efficiency calculation formula of the air conditioner 1 to obtain the energy efficiency value EER of the air conditioner 1 under the current operating mode, thereby calculating the cooling capacity or heating capacity Q of the air conditioner 1.

[0051] In some embodiments, when the indoor ambient temperature and indoor coil temperature are corrected according to the indoor temperature correction coefficient to obtain the indoor temperature correction value, the controller 16 is configured to: calculate the temperature difference between the indoor ambient temperature and the indoor coil temperature to obtain the absolute value of the indoor temperature difference; and correct the absolute value of the indoor temperature difference according to the indoor temperature correction coefficient to obtain the indoor temperature correction value.

[0052] In an embodiment, such as Figure 3 The diagram shows a flowchart of a method for calculating the indoor temperature correction value of an air conditioner according to an embodiment of the present invention. After obtaining the indoor ambient temperature (Tindoor) and the indoor coil temperature (Tincoil), the temperature difference between Tindoor and Tinncoil is calculated and its absolute value is taken, i.e., the absolute value of the indoor temperature difference is |Tindoor-Tincoil|. The absolute value of the indoor temperature difference |Tindoor-Tincoil| is then corrected according to the indoor temperature correction coefficient A to obtain the indoor temperature correction value, i.e., |Tindoor-Tincoil|×A. It can be understood that, according to the heat transfer formula Q=c×m×△T, the greater the temperature difference between two objects, the higher the heat exchange. Therefore, the greater the temperature difference between the indoor ambient temperature (Tindoor) and the indoor coil temperature (Tincoil), the greater the energy efficiency value (EER) of the air conditioner 1.

[0053] In some embodiments, when the outdoor ambient temperature and the outdoor coil temperature are corrected according to the outdoor temperature correction coefficient to obtain the outdoor temperature correction value, the controller 16 is configured to: calculate the temperature difference between the outdoor ambient temperature and the outdoor coil temperature to obtain the absolute value of the outdoor temperature difference; and correct the absolute value of the outdoor temperature difference according to the outdoor temperature correction coefficient to obtain the outdoor temperature correction value.

[0054] In an embodiment, such as Figure 4 The diagram shows a flowchart of a method for calculating the outdoor temperature correction value of an air conditioner according to an embodiment of the present invention. After obtaining the outdoor ambient temperature (Toutdoor) and the outdoor coil temperature (Toutcoil), the temperature difference between the outdoor ambient temperature (Toutdoor) and the outdoor coil temperature (Toutcoil) is calculated and its absolute value is taken, i.e., the absolute value of the outdoor temperature difference is |Toutdoor - Toutcoil|. Then, the absolute value of the outdoor temperature difference |Toutdoor - Toutcoil| is corrected according to the outdoor temperature correction coefficient B to obtain the outdoor temperature correction value, i.e., |Toutdoor - Toutcoil| × B. It can be understood that, according to the heat transfer formula Q = c × m × ΔT, the greater the temperature difference between two objects, the higher the heat exchange capacity. Therefore, the greater the temperature difference between the outdoor ambient temperature (Toutdoor) and the outdoor coil temperature (Toutcoil), the greater the energy efficiency value (EER) of the air conditioner 1.

[0055] In some embodiments, the energy efficiency calculation formula for air conditioner 1 includes:

[0056] EER=

|Tindoor-Tincoil|×A+|Toutdoor-Toutcoil|×B+C

[0057] Wherein, EER is the energy efficiency value of air conditioner 1, Tindoor is the indoor ambient temperature, Tincoil is the indoor coil temperature, A is the indoor temperature correction factor, Toutdoor is the outdoor ambient temperature, Toutcoil is the outdoor coil temperature, B is the outdoor temperature correction factor, C is the frequency correction factor, and D is the operating mode correction factor.

[0058] In this embodiment, after determining the indoor temperature correction value (|Tindoor-Tincoil|×A) and the outdoor temperature correction value (|Toutdoor-Toutcoil|×B), these parameters, along with the frequency correction coefficient C and the operating mode correction coefficient D, are substituted into the energy efficiency calculation formula for air conditioner 1. The energy efficiency calculation formula for air conditioner 1 is as follows:

[0059] EER=

|Tindoor-Tincoil|×A+|Toutdoor-Toutcoil|×B+C

[0060] By calculating the energy efficiency value (EER) of air conditioner 1, the cooling capacity or heating capacity (Q) of air conditioner 1 in the current operating mode is calculated based on the energy efficiency value (EER), thereby measuring the capacity of air conditioner 1 in real time under different operating modes.

[0061] In some embodiments, the capacity calculation formula includes:

[0062] Q = P × EER

[0063] Where Q is the cooling or heating capacity of air conditioner 1, P is the power value of air conditioner 1, and EER is the energy efficiency value of air conditioner 1.

[0064] In this embodiment, after determining the energy efficiency value (EER) and power value (P) of air conditioner 1, these parameters are substituted into the capacity calculation formula of air conditioner 1. The capacity calculation formula of air conditioner 1 is as follows:

[0065] Q = P × EER

[0066] The real-time capacity Q of air conditioner 1 is calculated based on its energy efficiency value EER and power value P, thereby determining the heating capacity when air conditioner 1 is in heating mode and the cooling capacity when air conditioner 1 is in cooling mode.

[0067] In some embodiments, after determining the cooling or heating capacity of the air conditioner 1 in the current operating mode, the controller 16 is further configured to send the cooling or heating capacity of the air conditioner 1 to the user terminal and / or the display screen of the air conditioner 1.

[0068] In this embodiment, after determining the cooling or heating capacity of the air conditioner 1 in the current operating mode, the controller 16 sends the cooling or heating capacity to the user terminal, such as a mobile APP, and / or to the display screen of the air conditioner 1 for display, so that the user can understand the real-time status of the air conditioner 1.

[0069] The following is for reference. Figure 5 An example is given to illustrate the capacity calculation method of the air conditioner according to an embodiment of the present invention.

[0070] like Figure 5 As shown, the air conditioner capacity calculation method of this embodiment includes at least steps S11-S21.

[0071] Step S11: Turn on the air conditioner.

[0072] Step S12: Obtain the power value of the air conditioner, the operating mode of the air conditioner, the indoor ambient temperature, the indoor coil temperature, the outdoor ambient temperature, the outdoor coil temperature, and the frequency value of the compressor.

[0073] Step S13: Obtain the operating mode correction coefficient corresponding to the air conditioner's operating mode, the indoor temperature correction coefficient corresponding to the indoor ambient temperature and indoor coil temperature, the outdoor temperature correction coefficient corresponding to the outdoor ambient temperature and outdoor coil temperature, and the frequency correction coefficient corresponding to the compressor's frequency value.

[0074] Step S14: Calculate the temperature difference between the indoor ambient temperature and the indoor coil temperature, and obtain the absolute value of the indoor temperature difference.

[0075] Step S15: Correct the absolute value of the indoor temperature difference according to the indoor temperature correction coefficient to obtain the indoor temperature correction value.

[0076] Step S16: Calculate the temperature difference between the outdoor ambient temperature and the outdoor coil temperature, and obtain the absolute value of the outdoor temperature difference.

[0077] Step S17: Correct the absolute value of the outdoor temperature difference according to the outdoor temperature correction coefficient to obtain the outdoor temperature correction value.

[0078] Step S18: Correct the compressor frequency value according to the frequency correction coefficient to obtain the frequency correction value; correct the air conditioner operation mode according to the operation mode correction coefficient to obtain the operation mode correction value.

[0079] Step S19: Based on the indoor temperature correction value, outdoor temperature correction value, frequency correction value, operating mode correction value, and air conditioner energy efficiency calculation formula, obtain the energy efficiency value of the air conditioner under the current operating mode.

[0080] Step S20: Substitute the energy efficiency value and power value into the air conditioner's capacity calculation formula to obtain the air conditioner's cooling capacity or heating capacity under the current operating mode.

[0081] Step S21: Send the cooling or heating capacity of air conditioner 1 to the user terminal and / or the display screen of air conditioner 1.

[0082] According to an embodiment of the present invention, after the air conditioner 1 is turned on, the operating parameters of the air conditioner 1 at the time of operation are acquired in real time, including power value, operating mode, indoor ambient temperature, indoor coil temperature, outdoor ambient temperature, outdoor coil temperature and compressor frequency value. The real-time capacity of the air conditioner 1 under the current operating mode is calculated using the capacity calculation formula of the air conditioner 1, that is, the cooling capacity or heating capacity of the air conditioner 1 is measured in real time. By using the capacity calculation formula of the air conditioner 1 to calculate the real-time capacity, it is not necessary to calculate the capacity of the air conditioner 1 according to the enthalpy difference method, which makes the capacity calculation of the air conditioner 1 more convenient and accurate, and it is not necessary to add an additional device to realize the capacity detection of the air conditioner 1. Thus, the hardware space occupied by the air conditioner 1 is reduced, and the hardware cost is reduced.

[0083] The following is for reference. Figure 6This invention describes a method for calculating the capacity of an air conditioner according to an embodiment of the present invention.

[0084] like Figure 6 As shown, the air conditioner capacity calculation method of this embodiment includes at least steps S1-S2.

[0085] Step S1: Obtain the power value of the air conditioner, the operating mode of the air conditioner, the indoor ambient temperature, the indoor coil temperature, the outdoor ambient temperature, the outdoor coil temperature, and the compressor frequency value.

[0086] In this embodiment, after the air conditioner is turned on, its operating parameters are acquired in real time, including the air conditioner's power value (e.g., P) and the compressor's frequency value; the air conditioner's operating mode, which may include heating mode and cooling mode; the indoor ambient temperature (e.g., Tindoor) is acquired from an indoor ambient temperature sensor; the indoor coil temperature (e.g., Tincoil) is acquired from an indoor coil temperature sensor; the outdoor ambient temperature (e.g., Toutdoor) is acquired from an outdoor ambient temperature sensor; and the outdoor coil temperature (e.g., Toutcoil) is acquired from an outdoor coil temperature sensor. The compressor compresses the low-temperature, low-pressure refrigerant gas into a high-temperature, high-pressure refrigerant gas and discharges it to the condenser; the indoor ambient temperature sensor detects the indoor ambient temperature in real time; the indoor coil temperature sensor detects the indoor coil temperature in real time; the outdoor ambient temperature sensor detects the outdoor ambient temperature in real time; and the outdoor coil temperature sensor detects the outdoor coil temperature in real time.

[0087] Step S2: Based on the air conditioner's power value, operating mode, indoor ambient temperature, indoor coil temperature, outdoor ambient temperature, outdoor coil temperature, compressor frequency value, and air conditioner capacity calculation formula, obtain the cooling or heating capacity of the air conditioner under the current operating mode.

[0088] In this embodiment, after obtaining the above operating parameters, the capacity of the air conditioner under different operating modes is determined by using the air conditioner capacity calculation formula and combining the above operating parameters. For example, when the air conditioner is in the cooling mode, the cooling capacity of the air conditioner is determined by using the air conditioner capacity calculation formula and combining the above operating parameters; when the air conditioner is in the heating mode, the heating capacity of the air conditioner is determined by using the air conditioner capacity calculation formula and combining the above parameters.

[0089] According to the air conditioner capacity calculation method of the present invention, after the air conditioner is turned on, the operating parameters of the air conditioner at the time of operation are acquired in real time, including power value, operating mode, indoor ambient temperature, indoor coil temperature, outdoor ambient temperature, outdoor coil temperature and compressor frequency value. The real-time capacity of the air conditioner under the current operating mode is calculated using the air conditioner capacity calculation formula, that is, the cooling capacity or heating capacity of the air conditioner is measured in real time. By using the air conditioner capacity calculation formula to calculate the real-time capacity, there is no need to calculate the capacity of the air conditioner based on the enthalpy difference method, which makes the capacity calculation of the air conditioner more convenient and accurate. Moreover, there is no need to add an extra device to realize the capacity detection of the air conditioner, thereby reducing the hardware space occupied by the air conditioner and reducing the hardware cost.

[0090] In some embodiments, the cooling capacity or heating capacity of the air conditioner under the current operating mode is obtained based on the power value of the air conditioner, the operating mode of the air conditioner, the indoor ambient temperature, the indoor coil temperature, the outdoor ambient temperature, the outdoor coil temperature, the compressor frequency value, and the air conditioner capacity calculation formula. This includes: obtaining the operating mode correction coefficient corresponding to the air conditioner's operating mode, the indoor temperature correction coefficient corresponding to the indoor ambient temperature and the indoor coil temperature, the outdoor temperature correction coefficient corresponding to the outdoor ambient temperature and the outdoor coil temperature, and the frequency correction coefficient corresponding to the compressor frequency value; obtaining the energy efficiency value of the air conditioner under the current operating mode based on the air conditioner's operating mode, the indoor ambient temperature, the indoor coil temperature, the outdoor ambient temperature, the outdoor coil temperature, the compressor frequency value, the indoor temperature correction coefficient, the outdoor temperature correction coefficient, the frequency correction coefficient, and the operating mode correction coefficient; and substituting the energy efficiency value and the power value into the air conditioner capacity calculation formula to obtain the cooling capacity or heating capacity of the air conditioner under the current operating mode.

[0091] In this embodiment, after obtaining the air conditioner's power value P, operating mode, indoor ambient temperature Tindoor, indoor coil temperature Tincoil, outdoor ambient temperature Toutdoor, outdoor coil temperature Toutcoil, and compressor frequency, the controller obtains the operating mode correction coefficient corresponding to the air conditioner's operating mode based on engineering testing experience, for example, denoted as D. The operating mode correction coefficient D is a constant. When the air conditioner is in cooling mode, the cooling capacity is the difference between the heat exchange of the outdoor unit and the heat work done by the compressor compressing the refrigerant. When the air conditioner is in heating mode, the heating capacity is the sum of the heat exchange of the outdoor unit and the heat work done by the compressor compressing the refrigerant. Therefore, the heating efficiency is usually greater than the cooling efficiency. When calculating the air conditioner's energy efficiency value, the operating mode correction coefficient D is needed for mode correction.

[0092] Based on engineering testing experience, the controller obtains the indoor temperature correction coefficient corresponding to the indoor ambient temperature (Tindoor) and the indoor coil temperature (Tincoil), denoted as A, where A is a constant; it also obtains the outdoor temperature correction coefficient corresponding to the outdoor ambient temperature (Toutdoor) and the outdoor coil temperature (Toutcoil), denoted as B, where B is a constant; and it obtains the frequency correction coefficient corresponding to the compressor frequency value, denoted as C, where C is a constant. When the heat exchange area of ​​the indoor and outdoor units is constant, if the circulation flow rate is larger, the heat exchanger's heat dissipation efficiency is lower, and the air conditioner's energy efficiency value is lower. Therefore, when calculating the air conditioner's energy efficiency value, the frequency correction coefficient C is needed for frequency correction.

[0093] After obtaining the indoor temperature correction coefficient A, outdoor temperature correction coefficient B, frequency correction coefficient C, and operating mode correction coefficient D, based on the operating mode of air conditioner 1, indoor ambient temperature Tindoor, indoor coil temperature Tincoil, outdoor ambient temperature Toutdoor, outdoor coil temperature Toutcoil, and the frequency value of compressor 11, and in conjunction with the above correction parameters, the energy efficiency value of air conditioner 1 under the current operating mode is obtained, for example denoted as EER. The energy efficiency value EER and the power value P are then substituted into the capacity calculation formula of air conditioner 1 to obtain the real-time capacity of air conditioner 1 under the current operating mode, for example denoted as Q, which is the real-time calculation of the cooling capacity or heating capacity of the air conditioner.

[0094] In some embodiments, when obtaining the energy efficiency value of the air conditioner under the current operating mode based on the air conditioner's operating mode, indoor ambient temperature, indoor coil temperature, outdoor ambient temperature, outdoor coil temperature, compressor frequency, indoor temperature correction coefficient, outdoor temperature correction coefficient, frequency correction coefficient, and operating mode correction coefficient, the process includes: correcting the indoor ambient temperature and indoor coil temperature according to the indoor temperature correction coefficient to obtain an indoor temperature correction value; correcting the outdoor ambient temperature and outdoor coil temperature according to the outdoor temperature correction coefficient to obtain an outdoor temperature correction value; correcting the compressor frequency according to the frequency correction coefficient to obtain a frequency correction value; correcting the air conditioner's operating mode according to the operating mode correction coefficient to obtain an operating mode correction value; and obtaining the air conditioner's energy efficiency value under the current operating mode based on the indoor temperature correction value, outdoor temperature correction value, frequency correction value, operating mode correction value, and the air conditioner energy efficiency calculation formula.

[0095] In this embodiment, after obtaining the indoor temperature correction coefficient A, outdoor temperature correction coefficient B, frequency correction coefficient C, and operating mode correction coefficient D, the indoor ambient temperature Tindoor and indoor coil temperature Tincoil are corrected according to the indoor temperature correction coefficient A to obtain the outdoor temperature correction value; the outdoor ambient temperature Toutdoor and outdoor coil temperature Toutcoil are corrected according to the outdoor temperature correction coefficient B to obtain the outdoor temperature correction value; the compressor frequency is corrected according to the frequency correction coefficient C to obtain the frequency correction value; the air conditioner's operating mode is corrected according to the operating mode correction coefficient D to obtain the operating mode correction value; the indoor temperature correction value, outdoor temperature correction value, frequency correction value, and operating mode correction value are substituted into the air conditioner's energy efficiency calculation formula to obtain the air conditioner's energy efficiency value EER under the current operating mode, thereby calculating the cooling capacity or heating capacity Q of the air conditioner 1.

[0096] In some embodiments, when correcting the indoor ambient temperature and the indoor coil temperature according to the indoor temperature correction coefficient to obtain the indoor temperature correction value, the process includes: calculating the temperature difference between the indoor ambient temperature and the indoor coil temperature to obtain the absolute value of the indoor temperature difference; and correcting the absolute value of the indoor temperature difference according to the indoor temperature correction coefficient to obtain the indoor temperature correction value.

[0097] In this embodiment, after obtaining the indoor ambient temperature (Tindoor) and the indoor coil temperature (Tincoil), the temperature difference between the two temperatures is calculated and its absolute value is taken, i.e., the absolute value of the indoor temperature difference is |Tindoor - Tincoil|. Then, the absolute value of the indoor temperature difference |Tindoor - Tincoil| is corrected according to the indoor temperature correction coefficient A to obtain the corrected indoor temperature value, i.e., |Tindoor - Tincoil| × A. It can be understood that, according to the heat transfer formula Q = c × m × ΔT, the greater the temperature difference between two objects, the higher the heat exchange capacity. Therefore, the greater the temperature difference between the indoor ambient temperature (Tindoor) and the indoor coil temperature (Tincoil), the greater the energy efficiency rating (EER) of the air conditioner.

[0098] In some embodiments, when correcting the outdoor ambient temperature and the outdoor coil temperature according to the outdoor temperature correction coefficient to obtain the outdoor temperature correction value, the process includes: calculating the temperature difference between the outdoor ambient temperature and the outdoor coil temperature to obtain the absolute value of the outdoor temperature difference; and correcting the absolute value of the outdoor temperature difference according to the outdoor temperature correction coefficient to obtain the outdoor temperature correction value.

[0099] In this embodiment, after obtaining the outdoor ambient temperature (Toutdoor) and the outdoor coil temperature (Toutcoil), the temperature difference between the two temperatures is calculated and its absolute value is taken, i.e., the absolute value of the outdoor temperature difference is |Toutdoor - Toutcoil|. Then, the absolute value of the outdoor temperature difference, |Toutdoor - Toutcoil|, is corrected according to the outdoor temperature correction coefficient B to obtain the corrected outdoor temperature value, i.e., |Toutdoor - Toutcoil| × B. It can be understood that, according to the heat transfer formula Q = c × m × ΔT, the greater the temperature difference between two objects, the higher the heat exchange capacity. Therefore, the greater the temperature difference between the outdoor ambient temperature (Toutdoor) and the outdoor coil temperature (Toutcoil), the higher the energy efficiency rating (EER) of the air conditioner.

[0100] In some embodiments, the formula for calculating the energy efficiency of an air conditioner includes:

[0101] EER=

|Tindoor-Tincoil|×A+|Toutdoor-Toutcoil|×B+C

[0102] Where EER is the energy efficiency value of the air conditioner, Tindoor is the indoor ambient temperature, Tincoil is the indoor coil temperature, A is the indoor temperature correction factor, Toutdoor is the outdoor ambient temperature, Toutcoil is the outdoor coil temperature, B is the outdoor temperature correction factor, C is the frequency correction factor, and D is the operating mode correction factor.

[0103] In this embodiment, after determining the indoor temperature correction value (|Tindoor-Tincoil|×A) and the outdoor temperature correction value (|Toutdoor-Toutcoil|×B), these parameters, along with the frequency correction coefficient C and the operating mode correction coefficient D, are substituted into the air conditioner energy efficiency calculation formula. The air conditioner energy efficiency calculation formula is as follows:

[0104] EER=

|Tindoor-Tincoil|×A+|Toutdoor-Toutcoil|×B+C

[0105] By calculating the energy efficiency value (EER) of the air conditioner, the cooling capacity or heating capacity (Q) of the air conditioner 1 in the current operating mode is calculated based on the energy efficiency value (EER), thereby measuring the capacity of the air conditioner in real time under different operating modes.

[0106] In some embodiments, the capacity calculation formula includes:

[0107] Q = P × EER

[0108] Where Q is the cooling or heating capacity of the air conditioner, P is the power value of the air conditioner, and EER is the energy efficiency value of the air conditioner.

[0109] In this embodiment, after determining the energy efficiency value (EER) and power value (P) of the air conditioner, these parameters are substituted into the air conditioner's capacity calculation formula, which is as follows:

[0110] Q = P × EER

[0111] The real-time capacity Q of the air conditioner is calculated based on its energy efficiency value (EER) and power value (P), thereby determining the heating capacity when the air conditioner is in heating mode and the cooling capacity when it is in cooling mode.

[0112] In some embodiments, after determining the cooling or heating capacity of the air conditioner in the current operating mode, the method further includes: sending the cooling or heating capacity of the air conditioner to the user terminal and / or the display screen of the air conditioner.

[0113] In this embodiment, after determining the cooling or heating capacity of the air conditioner in the current operating mode, the controller sends the cooling or heating capacity to the user terminal, such as a mobile APP, and / or to the display screen of the air conditioner for display, so that the user can understand the real-time status of the air conditioner.

[0114] According to the air conditioner capacity calculation method of the present invention, after the air conditioner is turned on, the operating parameters of the air conditioner at the time of operation are acquired in real time, including power value, operating mode, indoor ambient temperature, indoor coil temperature, outdoor ambient temperature, outdoor coil temperature and compressor frequency value. The real-time capacity of the air conditioner under the current operating mode is calculated using the air conditioner capacity calculation formula, that is, the cooling capacity or heating capacity of the air conditioner is measured in real time. By using the air conditioner capacity calculation formula to calculate the real-time capacity, there is no need to calculate the capacity of the air conditioner based on the enthalpy difference method, which makes the capacity calculation of the air conditioner more convenient and accurate. Moreover, there is no need to add an extra device to realize the capacity detection of the air conditioner, thereby reducing the hardware space occupied by the air conditioner and reducing the hardware cost.

[0115] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0116] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air conditioner, characterized in that, include: A compressor is used to compress low-temperature, low-pressure refrigerant gas into high-temperature, high-pressure refrigerant gas and discharge it to the condenser. Indoor ambient temperature sensor, used to detect indoor ambient temperature; Indoor coil temperature sensor, used to detect indoor coil temperature; Outdoor ambient temperature sensor, used to detect outdoor ambient temperature; Outdoor coil temperature sensor, used to detect the temperature of outdoor coil; The controller is configured to acquire the power value of the air conditioner, the operating mode of the air conditioner, the indoor ambient temperature, the indoor coil temperature, the outdoor ambient temperature, the outdoor coil temperature, and the frequency value of the compressor. Obtain the operating mode correction coefficient corresponding to the operating mode of the air conditioner, the indoor temperature correction coefficient corresponding to the indoor ambient temperature and the indoor coil temperature, the outdoor temperature correction coefficient corresponding to the outdoor ambient temperature and the outdoor coil temperature, and the frequency correction coefficient corresponding to the frequency value of the compressor. The indoor ambient temperature and the indoor coil temperature are corrected according to the indoor temperature correction coefficient to obtain the indoor temperature correction value; the outdoor ambient temperature and the outdoor coil temperature are corrected according to the outdoor temperature correction coefficient to obtain the outdoor temperature correction value. The frequency value of the compressor is corrected according to the frequency correction coefficient to obtain the frequency correction value; The operating mode of the air conditioner is corrected according to the operating mode correction coefficient to obtain the operating mode correction value; Based on the indoor temperature correction value, the outdoor temperature correction value, the frequency correction value, the operating mode correction value, and the air conditioner energy efficiency calculation formula, the energy efficiency value of the air conditioner under the current operating mode is obtained; Substitute the energy efficiency value and the power value into the capacity calculation formula of the air conditioner to obtain the cooling capacity or heating capacity of the air conditioner under the current operating mode; The formula for calculating the energy efficiency of air conditioners includes: in, This refers to the energy efficiency rating of the air conditioner. Indoor ambient temperature, Indoor coil temperature, This is the indoor temperature correction factor. Outdoor ambient temperature This refers to the outdoor coil temperature. This is the outdoor temperature correction factor. This is the frequency correction factor. This is a correction factor for the operating mode.

2. The air conditioner according to claim 1, characterized in that, When the indoor ambient temperature and the indoor coil temperature are corrected according to the indoor temperature correction coefficient to obtain the indoor temperature correction value, the controller is configured as follows: Calculate the temperature difference between the indoor ambient temperature and the indoor coil temperature to obtain the absolute value of the indoor temperature difference; The absolute value of the indoor temperature difference is corrected according to the indoor temperature correction coefficient to obtain the indoor temperature correction value.

3. The air conditioner according to claim 1, characterized in that, When the outdoor ambient temperature and the outdoor coil temperature are corrected according to the outdoor temperature correction coefficient to obtain the outdoor temperature correction value, the controller is configured as follows: Calculate the temperature difference between the outdoor ambient temperature and the outdoor coil temperature to obtain the absolute value of the outdoor temperature difference; The absolute value of the outdoor temperature difference is corrected according to the outdoor temperature correction coefficient to obtain the outdoor temperature correction value.

4. The air conditioner according to claim 1, characterized in that, The capacity calculation formula includes: in, The cooling or heating capacity of the air conditioner. This refers to the power rating of the air conditioner. This refers to the energy efficiency rating of the air conditioner.

5. The air conditioner according to claim 1, characterized in that, After determining the cooling or heating capacity of the air conditioner in the current operating mode, the controller is further configured to: Send the cooling or heating capacity of the air conditioner to the user terminal and / or the air conditioner's display screen.

6. A method for calculating the capacity of an air conditioner, characterized in that, For use in an air conditioner as described in any one of claims 1-5, the method comprises: The power value of the air conditioner, the operating mode of the air conditioner, the indoor ambient temperature, the indoor coil temperature, the outdoor ambient temperature, the outdoor coil temperature, and the frequency value of the compressor are obtained. Obtain the operating mode correction coefficient corresponding to the operating mode of the air conditioner, the indoor temperature correction coefficient corresponding to the indoor ambient temperature and the indoor coil temperature, the outdoor temperature correction coefficient corresponding to the outdoor ambient temperature and the outdoor coil temperature, and the frequency correction coefficient corresponding to the frequency value of the compressor. The indoor ambient temperature and the indoor coil temperature are corrected according to the indoor temperature correction coefficient to obtain an indoor temperature correction value; the outdoor ambient temperature and the outdoor coil temperature are corrected according to the outdoor temperature correction coefficient to obtain an outdoor temperature correction value; the compressor frequency is corrected according to the frequency correction coefficient to obtain a frequency correction value; the air conditioner's operating mode is corrected according to the operating mode correction coefficient to obtain an operating mode correction value; and the energy efficiency value of the air conditioner under the current operating mode is obtained based on the indoor temperature correction value, the outdoor temperature correction value, the frequency correction value, the operating mode correction value, and the air conditioner energy efficiency calculation formula. Substitute the energy efficiency value and the power value into the capacity calculation formula of the air conditioner to obtain the cooling capacity or heating capacity of the air conditioner under the current operating mode; The formula for calculating the energy efficiency of air conditioners includes: in, This refers to the energy efficiency rating of the air conditioner. Indoor ambient temperature, Indoor coil temperature, This is the indoor temperature correction factor. Outdoor ambient temperature This refers to the outdoor coil temperature. This is the outdoor temperature correction factor. This is the frequency correction factor. This is a correction factor for the operating mode.

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