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 unit, an indoor dry-bulb temperature sensor, an indoor wet-bulb temperature sensor, an outdoor dry-bulb temperature sensor, an outdoor wet-bulb temperature sensor and a controller. The controller is configured to obtain an operation mode of the air conditioner, a rated outdoor dry-bulb temperature, a rated indoor dry-bulb temperature, a rated indoor wet-bulb temperature, an indoor dry-bulb temperature, an indoor wet-bulb temperature, an outdoor dry-bulb temperature, a rated sensible heat capacity value, a rated latent heat capacity value and a temperature difference coefficient. The refrigerating capacity or the heating capacity of the air conditioner is determined according to the parameters and a preset calculation formula. 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 technical field of air conditioners, and particularly to an air conditioner and a capacity calculation method thereof. BACKGROUND

[0002] Since an air conditioner must have a capacity calculation function, and an air conditioner without the function is not allowed to be sold, at present, the air conditioner can increase temperature detection devices and pressure detection devices 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 air supplementing port 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 additionally increase devices in the air conditioner, occupies the internal space of the air conditioner, and the device structure is complex, resulting in a high cost of the air conditioner. SUMMARY

[0004] The present application aims to at least solve one of the 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] To achieve the above object, the embodiment of the first aspect of the present application proposes an air conditioner, comprising: a compressor, configured to compress low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharge the refrigerant gas to a condenser; an indoor unit, having an air return port; an indoor dry-bulb temperature sensor, arranged at the air return port, configured to detect an indoor dry-bulb temperature; an indoor wet-bulb temperature sensor, arranged at the air return port, configured to detect an indoor wet-bulb temperature; an outdoor dry-bulb temperature sensor, arranged at the air return port, configured to detect an outdoor dry-bulb temperature; an outdoor wet-bulb temperature sensor, arranged at the air return port, configured to detect an outdoor wet-bulb temperature; and a controller, configured to: acquire an operation mode of the air conditioner, a rated outdoor dry-bulb temperature, a rated indoor dry-bulb temperature, a rated indoor wet-bulb temperature, an indoor dry-bulb temperature, an indoor wet-bulb temperature, an outdoor dry-bulb temperature, a rated sensible heat capacity value, a rated latent heat capacity value, and a temperature difference coefficient; and determine a cooling capacity or a heating capacity of the air conditioner according to the operation mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value, the temperature difference coefficient, and a preset calculation formula.

[0008] According to the air conditioner of the embodiment of the present application, by acquiring the operation parameters of the air conditioner in the operation state, including the operation mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value, and the temperature difference coefficient, and using the preset calculation formula to calculate the real-time capacity of the air conditioner in different operation modes, that is, to calculate the cooling capacity or the heating capacity of the air conditioner in real time, by using the preset calculation formula to calculate the real-time capacity of the air conditioner, 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 increasing additional devices, so that the hardware occupying space of the air conditioner is reduced, and the hardware cost is reduced.

[0009] In some embodiments, the temperature difference coefficients include an indoor dry-bulb temperature difference coefficient, an indoor wet-bulb temperature difference coefficient, and an outdoor dry-bulb temperature difference coefficient, the rated sensible heat capacity value includes a rated cooling sensible heat capacity value, the rated latent heat capacity value includes a rated cooling latent heat capacity value, and when determining the cooling capacity of the air conditioner according to the operation mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value, the temperature difference coefficients, and a preset calculation formula, the controller is configured to: when the operation mode is in a cooling mode, determine a cooling actual sensible heat capacity value according to the rated indoor dry-bulb temperature, the indoor dry-bulb temperature, the indoor dry-bulb temperature difference coefficient, and the rated cooling sensible heat capacity value, and determine a cooling actual latent heat capacity value according to the rated indoor wet-bulb temperature, the indoor wet-bulb temperature, the indoor wet-bulb temperature difference coefficient, and the rated cooling latent heat capacity value; and determine the cooling capacity of the air conditioner according to the cooling actual sensible heat capacity value, the cooling actual latent heat capacity value, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, the outdoor dry-bulb temperature difference coefficient, and the preset calculation formula.

[0010] In some embodiments, when determining the cooling capacity of the air conditioner according to the cooling actual sensible heat capacity value, the cooling actual latent heat capacity value, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, the outdoor dry-bulb temperature difference coefficient, and the preset calculation formula, the controller is configured to: calculate a sum of the cooling actual sensible heat capacity value and the cooling actual latent heat capacity value; and determine the cooling capacity of the air conditioner by bringing the sum of the cooling actual sensible heat capacity value and the cooling actual latent heat capacity value, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, and the outdoor dry-bulb temperature difference coefficient into the preset calculation formula.

[0011] In some embodiments, the preset calculation formula includes:

[0012]

[0013] wherein the QC is the cooling capacity, the TID is the indoor dry-bulb temperature, the TI1 is the rated indoor dry-bulb temperature, the Ac is the indoor dry-bulb temperature difference coefficient, the Qsc is the rated cooling sensible heat capacity value, the TI2 is the rated indoor wet-bulb temperature, the TIW is the indoor wet-bulb temperature, the Bc is the indoor wet-bulb temperature difference coefficient, the Qlc is the rated cooling latent heat capacity value, the TO1 is the rated outdoor dry-bulb temperature, the TOD is the outdoor dry-bulb temperature, and the Cc is the outdoor dry-bulb temperature difference coefficient.

[0014] In some embodiments, the temperature difference coefficient includes an indoor dry-bulb temperature difference coefficient and an outdoor dry-bulb temperature difference coefficient, the rated sensible heat capacity value includes a rated heating sensible heat capacity value, and when determining the heating capacity of the air conditioner according to the operation mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the indoor dry-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the temperature difference coefficient, and the preset calculation formula, the controller is configured to: when the operation mode is in the heating mode, determine a heating actual sensible heat capacity value according to the rated indoor dry-bulb temperature, the indoor dry-bulb temperature, the indoor dry-bulb temperature difference coefficient, and the rated heating sensible heat capacity value; and determine the heating capacity of the air conditioner by bringing the heating actual sensible heat capacity value, the outdoor dry-bulb temperature, the rated outdoor dry-bulb temperature, and the outdoor dry-bulb temperature difference coefficient into the preset calculation formula.

[0015] In some embodiments, the preset calculation formula includes:

[0016]

[0017] wherein the QH is the heating capacity, the TID is the indoor dry-bulb temperature, the TI3 is the rated indoor dry-bulb temperature, the Ah is the indoor dry-bulb temperature difference coefficient, the Qsc is the rated heating sensible heat capacity value, the TOD is the outdoor dry-bulb temperature, the TO2 is the rated outdoor dry-bulb temperature, and the Ch is the outdoor dry-bulb temperature difference coefficient.

[0018] In some embodiments, after obtaining the cooling capacity or the heating capacity of the air conditioner, the controller is further configured to: send the cooling capacity or the heating capacity to a user terminal and / or display the cooling capacity or the heating capacity on a display screen of the air conditioner.

[0019] To achieve the above object, embodiments of the second aspect of the present application propose a capacity calculation method of an air conditioner, the method comprising: obtaining an operation mode, a rated outdoor dry-bulb temperature, a rated indoor dry-bulb temperature, a rated indoor wet-bulb temperature, an indoor dry-bulb temperature, an indoor wet-bulb temperature, an outdoor dry-bulb temperature, a rated sensible heat capacity value, a rated latent heat capacity value, and a temperature difference coefficient of the air conditioner; and determining a cooling capacity or a heating capacity of the air conditioner according to the operation mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value, the temperature difference coefficient, and a preset calculation formula.

[0020] The capacity calculation method of the air conditioner according to the embodiment of the present application obtains the operation parameters of the air conditioner in the operation state, including the operation mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value and the temperature difference coefficient, and calculates the real-time capacity of the air conditioner in different operation modes by using the preset calculation formula, that is, the refrigerating capacity or the heating capacity of the air conditioner is calculated in real time. The real-time capacity of the air conditioner is calculated by using the preset calculation formula, without calculating 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 the additional device is not needed to realize the capacity detection of the air conditioner, thereby reducing the hardware occupying space of the air conditioner and reducing the hardware cost.

[0021] In some embodiments, the temperature difference coefficient includes an indoor dry-bulb temperature difference coefficient, an indoor wet-bulb temperature difference coefficient and an outdoor dry-bulb temperature difference coefficient, the rated sensible heat capacity value includes a rated refrigeration sensible heat capacity value, and the rated latent heat capacity value includes a rated refrigeration latent heat capacity value. When the refrigerating capacity of the air conditioner is determined according to the operation mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value, the temperature difference coefficient and the preset calculation formula, the refrigeration actual sensible heat capacity value is determined according to the rated indoor dry-bulb temperature, the indoor dry-bulb temperature, the indoor dry-bulb temperature difference coefficient and the rated refrigeration sensible heat capacity value when the operation mode is in the refrigeration mode, and the refrigeration actual latent heat capacity value is determined according to the rated indoor wet-bulb temperature, the indoor wet-bulb temperature, the indoor wet-bulb temperature difference coefficient and the rated refrigeration latent heat capacity value.

[0022] In some embodiments, the refrigerating capacity of the air conditioner is determined according to the refrigeration actual sensible heat capacity value, the refrigeration actual latent heat capacity value, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, the outdoor dry-bulb temperature difference coefficient and the preset calculation formula, including: calculating the sum of the refrigeration actual sensible heat capacity value and the refrigeration actual latent heat capacity value; and bringing the sum of the refrigeration actual sensible heat capacity value and the refrigeration actual latent heat capacity value, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature and the outdoor dry-bulb temperature difference coefficient into the preset calculation formula to determine the refrigerating capacity of the air conditioner.

[0023] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and the attendant drawings or can be learned by practice of the application. 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 configuration diagram of an air conditioner according to an embodiment of the present application;

[0026] Figure 2 is a flowchart of a method of calculating a cooling capacity of an air conditioner according to an embodiment of the present application;

[0027] Figure 3 is a flowchart of a method of calculating a cooling capacity of an air conditioner according to an embodiment of the present application;

[0028] Figure 4 is a flowchart of a method of calculating a heating capacity of an air conditioner according to an embodiment of the present application;

[0029] Figure 5 is a flowchart of a method of calculating a capacity of an air conditioner according to an embodiment of the present application;

[0030] Figure 6 is a flowchart of a method of calculating a capacity of an air conditioner according to an embodiment of the present application.

[0031] Reference numerals: air conditioner 1;

[0032] Compressor 11; indoor unit 12; indoor dry-bulb temperature sensor 13; indoor wet-bulb temperature sensor 14; outdoor dry-bulb temperature sensor 15; outdoor wet-bulb temperature sensor 16; controller 17. DETAILED DESCRIPTION

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

[0034] In the present application, an air conditioner 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 high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into 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 exchanging heat 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] Currently, the air conditioner obtains air conditioner off-design parameters according to engineering test experience to determine actual sensible capacity values and actual latent capacity values of the air conditioner in different operating modes, and presets the air conditioner off-design parameters and corresponding sensible capacity values and latent capacity values to the controller, which occupies a large storage space of the air conditioner and affects subsequent product function upgrade.

[0040] Therefore, the air conditioner according to the embodiment of the present application takes the rated operating parameters of the rated operating condition as a standard, and when the air conditioner is running, the capacity of the air conditioner is calculated in real time according to the temperature difference between the actual indoor dry-bulb temperature, the indoor wet-bulb temperature, and the outdoor dry-bulb temperature and the rated operating parameters and a preset calculation formula.

[0041] The following refers to Figures 1-5 The air conditioner 1 according to the embodiment of the present application is described.

[0042] As Figure 1 shown, the air conditioner 1 according to the embodiment of the present application includes a compressor 11, an indoor unit 12, an indoor dry-bulb temperature sensor 13, an indoor wet-bulb temperature sensor 14, an outdoor dry-bulb temperature sensor 15, an outdoor wet-bulb temperature sensor 16, and a controller 17, wherein,

[0043] The compressor 11 is configured to compress low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharge the high-temperature and high-pressure refrigerant gas to the condenser; the indoor unit 12 has an air return port; the indoor dry-bulb temperature sensor 13 is arranged at the air return port and configured to detect an indoor dry-bulb temperature; the indoor wet-bulb temperature sensor 14 is arranged at the air return port and configured to detect an indoor wet-bulb temperature; the outdoor dry-bulb temperature sensor 15 is arranged at the air return port and configured to detect an outdoor dry-bulb temperature; the outdoor wet-bulb temperature sensor 16 is arranged at the air return port and configured to detect an outdoor wet-bulb temperature; the controller 17 is configured to: acquire an operating mode of the air conditioner 1, a rated outdoor dry-bulb temperature, a rated indoor dry-bulb temperature, a rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, a rated sensible heat capacity value, a rated latent heat capacity value, and a temperature difference coefficient; and determine a refrigerating capacity or a heating capacity of the air conditioner 1 according to the operating mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value, the temperature difference coefficient, and a preset calculation formula.

[0044] In an embodiment, after the air conditioner 1 is started, the operating parameters of the air conditioner 1 in the running state are acquired in real time, including acquiring the operating mode of the air conditioner 1, for example, the operating mode includes a heating mode and a cooling mode, etc.; the indoor dry-bulb temperature is acquired by the indoor dry-bulb temperature sensor 13, for example, denoted as TID; the indoor wet-bulb temperature is acquired by the indoor wet-bulb temperature sensor 14, for example, denoted as TIW; and the outdoor dry-bulb temperature is acquired by the outdoor dry-bulb temperature sensor 15, for example, denoted as TOD.

[0045] The rated outdoor dry-bulb temperature in the rated cooling operating mode is acquired, for example, denoted as TO1; the rated indoor dry-bulb temperature is acquired, for example, denoted as TI1; and the rated indoor wet-bulb temperature is acquired, for example, denoted as TI2; the rated outdoor dry-bulb in the rated heating operating mode is acquired, for example, denoted as TO2; and the rated indoor dry-bulb temperature is acquired, for example, denoted as TI3; for example, the rated outdoor dry-bulb temperature TO1 of the rated cooling operating mode is 35℃, the rated indoor dry-bulb temperature TI1 is 27℃, and the rated indoor wet-bulb temperature TI2 is 19℃; the rated outdoor dry-bulb TO2 of the rated heating operating mode is 7℃, and the rated indoor dry-bulb temperature TI3 is 20℃.

[0046] The rated sensible heat capacity value is acquired, for example, denoted as Qsc; when the air conditioner 1 is in different operating modes, the corresponding rated sensible heat capacity value Qsc is different; for example, when the operating mode of the air conditioner 1 is in the cooling mode, the rated sensible heat capacity value Qsc includes a rated cooling sensible heat capacity value; when the operating mode of the air conditioner 1 is in the heating mode, the rated sensible heat capacity value Qsc includes a rated heating sensible heat capacity value; since the operating mode of the air conditioner 1 is in the cooling mode, there is a change in the wet air heat, so the rated latent heat capacity value is acquired, for example, denoted as Qlc.

[0047] The temperature difference coefficient is obtained, that is, the temperature difference between the current temperature and the rated temperature. When the air conditioner 1 is in different operation modes, the corresponding temperature difference coefficients are different. For example, when the operation mode of the air conditioner 1 is in the cooling mode, the temperature difference coefficients include the indoor dry-bulb temperature difference coefficient, denoted as Ac, the indoor wet-bulb temperature difference coefficient, denoted as Bc, and the outdoor dry-bulb temperature difference coefficient, denoted as Cc. When the operation mode of the air conditioner 1 is in the heating mode, the temperature difference coefficients include the indoor dry-bulb temperature difference coefficient, denoted as Ah, and the outdoor dry-bulb temperature difference coefficient, denoted as Ch.

[0048] After the above operation parameters are obtained, the preset calculation formula is used to determine the corresponding capacity of the air conditioner 1 in different operation modes in combination with the above operation parameters. For example, when the operation mode of the air conditioner 1 is in the cooling mode, the preset calculation formula is used to determine the cooling capacity of the air conditioner 1 in combination with the above operation parameters. When the operation mode of the air conditioner 1 is in the heating mode, the preset calculation formula is used to determine the heating capacity of the air conditioner 1 in combination with the above operation parameters.

[0049] According to the air conditioner 1 of the embodiment of the present application, after starting operation, the operation parameters of the air conditioner 1 in the running state are obtained in real time, including the operation mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value, and the temperature difference coefficient. The preset calculation formula is used to calculate the real-time capacity of the air conditioner 1 in different operation modes, that is, to calculate the cooling capacity or the heating capacity of the air conditioner 1 in real time. By using the preset calculation formula to calculate the real-time capacity of the air conditioner 1, it is not necessary to calculate the capacity of the air conditioner 1 according to the enthalpy difference method, so that the capacity calculation of the air conditioner 1 is more convenient and accurate, and it is not necessary to realize the capacity detection of the air conditioner 1 by increasing additional devices, so that the hardware occupying space of the air conditioner 1 is reduced, and the hardware cost is reduced.

[0050] In some embodiments, the temperature difference coefficient includes the indoor dry-bulb temperature difference coefficient, the indoor wet-bulb temperature difference coefficient, and the outdoor dry-bulb temperature difference coefficient; the rated sensible heat capacity value includes the rated cooling sensible heat capacity value; and the rated latent heat capacity value includes the rated cooling latent heat capacity value. When determining the cooling capacity of the air conditioner 1 based on the operating mode, rated outdoor dry-bulb temperature, rated indoor dry-bulb temperature, rated indoor wet-bulb temperature, indoor dry-bulb temperature, indoor wet-bulb temperature, outdoor dry-bulb temperature, rated sensible heat capacity value, rated latent heat capacity value, temperature difference coefficient, and a preset calculation formula, the controller 17 is configured to: when the operating mode is in cooling mode, determine the actual sensible heat capacity value based on the rated indoor dry-bulb temperature, indoor dry-bulb temperature, indoor dry-bulb temperature difference coefficient, and rated cooling sensible heat capacity value; and determine the actual latent heat capacity value based on the rated indoor wet-bulb temperature, indoor wet-bulb temperature, indoor wet-bulb temperature difference coefficient, and rated latent cooling capacity value; and determine the cooling capacity of the air conditioner 1 based on the actual sensible heat capacity value, actual latent heat capacity value, rated outdoor dry-bulb temperature, outdoor dry-bulb temperature, outdoor dry-bulb temperature difference coefficient, and a preset calculation formula.

[0051] In an embodiment, such as Figure 2 The diagram shown is a flowchart of a method for calculating the cooling capacity of an air conditioner according to an embodiment of the present invention. After air conditioner 1 is turned on, it is determined whether air conditioner 1 is in cooling mode. When it is determined that air conditioner 1 is in cooling mode, since there are changes in the heat of the humid air in cooling mode, the rated latent heat capacity value Qsc is obtained. Based on the rated indoor dry-bulb temperature TI1, indoor dry-bulb temperature TID, indoor dry-bulb temperature difference coefficient Ac, and the rated sensible heat capacity value Qsc, the actual sensible heat capacity value is determined, i.e., [1-(TI1-TID)×Ac]×Qsc. Based on the rated indoor wet-bulb temperature TI2, indoor wet-bulb temperature TIW, indoor wet-bulb temperature difference coefficient Bc, and the rated latent cooling capacity value Qlc, the actual latent heat capacity value is determined, i.e., [1-(TI2-TIW)×Bc]×Qlc. After determining the actual sensible heat capacity value and the actual latent heat capacity value, the above parameters and the rated outdoor dry-bulb temperature TO1, outdoor dry-bulb temperature TOD, and outdoor dry-bulb temperature difference coefficient Cc are substituted into the preset calculation formula to determine the cooling capacity of air conditioner 1, for example, denoted as Q. 制冷量 This makes the cooling capacity Q of air conditioner 1 制冷量 The calculation results are more accurate and well-suited.

[0052] In some embodiments, when determining the cooling capacity of air conditioner 1 based on the actual sensible heat capacity, the actual latent heat capacity, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, the outdoor dry-bulb temperature difference coefficient, and a preset calculation formula, controller 17 is configured to: calculate the sum of the actual sensible heat capacity and the actual latent heat capacity; and substitute the sum of the actual sensible heat capacity and the actual latent heat capacity, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, and the outdoor dry-bulb temperature difference coefficient into the preset calculation formula to determine the cooling capacity of air conditioner 1.

[0053] In an embodiment, such as Figure 3 The diagram shows a flowchart of a method for calculating the cooling capacity of an air conditioner according to an embodiment of the present invention. After determining the actual sensible heat capacity value (i.e., [1-(TI1-TID)×Ac]×Qsc) and the actual latent heat capacity value (i.e., [1-(TI2-TIW)×Bc]×Qlc), the sum of the actual sensible heat capacity value and the actual latent heat capacity value is calculated, i.e., [1-(TI1-TID)×Ac]×Qsc + [1-(TI2-TIW)×Bc]×Qlc. This sum, along with the rated outdoor dry-bulb temperature TO1, the outdoor dry-bulb temperature TOD, and the outdoor dry-bulb temperature difference coefficient Cc, is substituted into a preset calculation formula to determine the cooling capacity of air conditioner 1, for example, denoted as Q. 制冷量 This makes the cooling capacity Q of air conditioner 1 制冷量 The calculation results are more accurate and well-suited.

[0054] In some embodiments, the preset calculation formula includes:

[0055]

[0056] Where QC is the cooling capacity, TID is the indoor dry-bulb temperature, TI1 is the rated indoor dry-bulb temperature, Ac is the indoor dry-bulb temperature difference coefficient, Qsc is the rated cooling sensible heat capacity, TI2 is the rated indoor wet-bulb temperature, TIW is the indoor wet-bulb temperature, Bc is the indoor wet-bulb temperature difference coefficient, Qlc is the rated cooling latent heat capacity, TO1 is the rated outdoor dry-bulb temperature, TOD is the outdoor dry-bulb temperature, and Cc is the outdoor dry-bulb temperature difference coefficient.

[0057] In this embodiment, the sum of the actual sensible heat capacity and the actual latent heat capacity of the cooling system is determined, i.e., [1-(TI1-TID)×Ac]×Qsc+[1-(TI2-TIW)×Bc]×Qlc. Then, the above sum, the rated outdoor dry-bulb temperature TO1, the outdoor dry-bulb temperature TOD, and the outdoor dry-bulb temperature difference coefficient Cc are substituted into a preset calculation formula. The preset calculation formula is as follows:

[0058]

[0059] Calculate the cooling capacity Q of air conditioner 1制冷量 To determine the real-time capability of air conditioner 1 when it is in cooling operation mode.

[0060] In some embodiments, the temperature difference coefficient includes the indoor dry-bulb temperature difference coefficient and the outdoor dry-bulb temperature difference coefficient, and the rated sensible heat capacity value includes the rated sensible heat capacity value. When determining the heating capacity of the air conditioner 1 based on the operating mode, rated outdoor dry-bulb temperature, rated indoor dry-bulb temperature, indoor dry-bulb temperature, outdoor dry-bulb temperature, rated sensible heat capacity value, temperature difference coefficient, and a preset calculation formula, the controller 17 is configured to: when the operating mode is in heating mode, determine the actual sensible heat capacity value based on the rated indoor dry-bulb temperature, indoor dry-bulb temperature, indoor dry-bulb temperature difference coefficient, and rated sensible heat capacity value; and substitute the actual sensible heat capacity value, outdoor dry-bulb temperature, rated outdoor dry-bulb temperature, and outdoor dry-bulb temperature difference coefficient into the preset calculation formula to determine the heating capacity of the air conditioner 1.

[0061] In an embodiment, such as Figure 4 The diagram shows a flowchart of a method for calculating the heating capacity of an air conditioner according to an embodiment of the present invention. After the air conditioner 1 is turned on, it is determined whether the air conditioner 1 is in heating mode. When it is determined that the air conditioner 1 is in heating mode, the actual sensible heating capacity is determined based on the rated indoor dry-bulb temperature TI3, indoor dry-bulb temperature TID, indoor dry-bulb temperature difference coefficient Ah, and rated sensible heating capacity value Qsc, i.e., [1-(TID-TI3)×Ah]×Qsc. The actual sensible heating capacity value, i.e., [1-(TID-TI3)×Ah]×Qsc, and the outdoor dry-bulb temperature TOD, rated outdoor dry-bulb temperature TO2, and outdoor dry-bulb temperature difference coefficient Ch are substituted into a preset calculation formula to determine the heating capacity of the air conditioner 1, for example, denoted as Q. 制热量 This makes the heating capacity Q of air conditioner 1... 制热量 The calculation results are more accurate and well-suited.

[0062] In some embodiments, the preset calculation formula includes:

[0063]

[0064] Where QH is the heating capacity, TID is the indoor dry-bulb temperature, TI3 is the rated indoor dry-bulb temperature, Ah is the indoor dry-bulb temperature difference coefficient, Qsc is the rated sensible heat capacity, TOD is the outdoor dry-bulb temperature, TO2 is the rated outdoor dry-bulb temperature, and Ch is the outdoor dry-bulb temperature difference coefficient.

[0065] In this embodiment, after determining the actual sensible heat capacity value, i.e., [1-(TID-TI3)×Ah]×Qsc, the above parameters, the outdoor dry-bulb temperature TOD, the rated outdoor dry-bulb temperature TO2, and the outdoor dry-bulb temperature difference coefficient Ch are substituted into a preset calculation formula. The preset calculation formula is as follows:

[0066]

[0067] The heating capacity Q 制热量 of the air conditioner 1 is calculated.

[0068] The cooling capacity Q 制冷量 and the heating capacity Q 制热量 of the air conditioner 1 are calculated.

[0069] In some embodiments, after obtaining the cooling capacity or the heating capacity of the air conditioner 1, the controller 17 is further configured to: send the cooling capacity or the heating capacity to a user terminal and / or display on a display screen of the air conditioner 1.

[0070] In embodiments, after obtaining the cooling capacity or the heating capacity of the air conditioner 1, the controller 17 sends the cooling capacity or the heating capacity to a user terminal, such as a mobile phone APP, and / or displays on a display screen of the air conditioner 1, so as to facilitate the user to understand the real-time state of the air conditioner 1.

[0071] The capability calculation method of the air conditioner according to the embodiments of the present application will be described below with reference to Figure 5 The capability calculation method of the air conditioner according to the embodiments of the present application will be described below with reference to

[0072] As shown in Figure 5 , the capability calculation method of the air conditioner according to the embodiments of the present application at least includes steps S11-S18.

[0073] Step S11, the air conditioner is started.

[0074] Step S12, the operating mode of the air conditioner, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value and the temperature difference coefficient are obtained.

[0075] Step S13, it is judged whether the air conditioner is in a cooling operating mode, if yes, step S15 is executed; otherwise, step S14 is executed.

[0076] Step S14, it is judged whether the air conditioner is in a heating operating mode, if yes, step S17 is executed; otherwise, step S11 is executed.

[0077] Step S15, the actual sensible heat capacity value in cooling is determined according to the rated indoor dry-bulb temperature, the indoor dry-bulb temperature, the indoor dry-bulb temperature difference coefficient and the rated sensible heat capacity value, and the actual latent heat capacity value in cooling is determined according to the rated indoor wet-bulb temperature, the indoor wet-bulb temperature, the indoor wet-bulb temperature difference coefficient and the rated latent heat capacity value.

[0078] Step S16, the sum of the actual sensible heat capacity value and the actual latent heat capacity value of refrigeration is calculated, and the sum of the actual sensible heat capacity value and the actual latent heat capacity value of refrigeration, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, and the outdoor dry-bulb temperature difference coefficient are brought into a preset calculation formula to determine the refrigerating capacity of the air conditioner.

[0079] Step S17, the actual sensible heat capacity value of heating is determined according to the rated indoor dry-bulb temperature, the indoor dry-bulb temperature, the indoor dry-bulb temperature difference coefficient, and the rated sensible heat capacity value of heating; and the actual sensible heat capacity value of heating, the outdoor dry-bulb temperature, the rated outdoor dry-bulb temperature, and the outdoor dry-bulb temperature difference coefficient are brought into a preset calculation formula to determine the heating capacity of the air conditioner.

[0080] Step S18, the refrigerating capacity or the heating capacity is sent to a user terminal and / or displayed on a display screen of the air conditioner.

[0081] According to the air conditioner 1 of the embodiment of the present application, after starting operation, the running parameters in the running state of the air conditioner 1 are acquired in real time, including the running mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value, and the temperature difference coefficient, the real-time capacity of the air conditioner 1 in different running modes is calculated by using a preset calculation formula, that is, the refrigerating capacity or the heating capacity of the air conditioner 1 is calculated in real time, by using the preset calculation formula to calculate the real-time capacity of the air conditioner 1, the capacity of the air conditioner 1 is calculated more conveniently and accurately without calculating the capacity of the air conditioner 1 according to the enthalpy difference method, and the hardware cost is reduced while reducing the hardware occupation space of the air conditioner 1.

[0082] Reference will be made to the following Figure 6 to describe the capacity calculation method of the air conditioner of the embodiment of the present application.

[0083] As shown in Figure 6 , the capacity calculation method of the air conditioner of the embodiment of the present application at least includes steps S1-S2.

[0084] Step S1, the running mode of the air conditioner, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value, and the temperature difference coefficient are acquired.

[0085] In embodiments, after the air conditioner is started, real-time running parameters of the air conditioner in a running state are acquired, including acquiring a running mode of the air conditioner, for example, including a heating mode and a cooling mode, etc.; an indoor dry-bulb temperature is acquired by an indoor dry-bulb temperature sensor, for example, denoted as TID, an indoor wet-bulb temperature is acquired by an indoor wet-bulb temperature sensor, for example, denoted as TIW, and an outdoor dry-bulb temperature is acquired by an outdoor dry-bulb temperature sensor, for example, denoted as TOD. The compressor is used to compress low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharge it to the condenser; the indoor unit has a return air inlet; the indoor dry-bulb temperature sensor is arranged at the return air inlet and is used to detect the indoor dry-bulb temperature; the indoor wet-bulb temperature sensor is arranged at the return air inlet and is used to detect the indoor wet-bulb temperature; the outdoor dry-bulb temperature sensor is arranged at the return air inlet and is used to detect the outdoor dry-bulb temperature; and the outdoor wet-bulb temperature sensor is arranged at the return air inlet and is used to detect the outdoor wet-bulb temperature.

[0086] A rated outdoor dry-bulb temperature in a rated cooling running mode is acquired, for example, denoted as TO1, a rated indoor dry-bulb temperature is acquired, for example, denoted as TI1, and a rated indoor wet-bulb temperature is acquired, for example, denoted as TI2; a rated outdoor dry-bulb in a rated heating running mode is acquired, for example, denoted as TO2, and a rated indoor dry-bulb temperature is acquired, for example, denoted as TI3. For example, the rated outdoor dry-bulb temperature TO1 in the rated cooling running mode is 35°C, the rated indoor dry-bulb temperature TI1 is 27°C, and the rated indoor wet-bulb temperature TI2 is 19°C; the rated outdoor dry-bulb TO2 in the rated heating running mode is 7°C, and the rated indoor dry-bulb temperature TI3 is 20°C.

[0087] A rated sensible heat capacity value is acquired, for example, denoted as Qsc, and the rated sensible heat capacity value Qsc is different when the air conditioner is in different running modes. For example, when the running mode of the air conditioner is in the cooling mode, the rated sensible heat capacity value Qsc includes a rated cooling sensible heat capacity value; when the running mode of the air conditioner is in the heating mode, the rated sensible heat capacity value Qsc includes a rated heating sensible heat capacity value; and since there is a change in the heat of wet air when the running mode of the air conditioner is in the cooling mode, a rated latent heat capacity value is acquired, for example, denoted as Qlc.

[0088] A temperature difference coefficient, that is, a temperature difference between a current temperature and a rated temperature, is acquired, and the temperature difference coefficient is different when the air conditioner is in different running modes. For example, when the running mode of the air conditioner is in the cooling mode, the temperature difference coefficient includes an indoor dry-bulb temperature difference coefficient, for example, denoted as Ac, an indoor wet-bulb temperature difference coefficient, for example, denoted as Bc, and an outdoor dry-bulb temperature difference coefficient, for example, denoted as Cc; when the running mode of the air conditioner is in the heating mode, the temperature difference coefficient includes an indoor dry-bulb temperature difference coefficient, for example, denoted as Ah, and an outdoor dry-bulb temperature difference coefficient, for example, denoted as Ch.

[0089] In step S2, the cooling or heating capacity of the air conditioner is determined according to the operation mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value, the temperature difference coefficient, and a preset calculation formula.

[0090] In an embodiment, after the operation mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value, and the temperature difference coefficient of the air conditioner are acquired, the corresponding capacity of the air conditioner is determined by using the preset calculation formula and in combination with the above operation parameters, for example, when the operation mode of the air conditioner is in the cooling mode, the cooling capacity of the air conditioner is determined by using the preset calculation formula and in combination with the above operation parameters; when the operation mode of the air conditioner is in the heating mode, the heating capacity of the air conditioner is determined by using the preset calculation formula and in combination with the above operation parameters.

[0091] The capacity calculation method of the air conditioner in the embodiment of the application takes the rated operation parameters of the rated working condition as the standard, and when the air conditioner is running, the capacity of the air conditioner is calculated in real time according to the temperature difference between the actual indoor dry-bulb temperature, the indoor wet-bulb temperature, and the outdoor dry-bulb temperature and the rated operation parameters and a preset calculation formula.

[0092] According to the capacity calculation method of the air conditioner in the embodiment of the application, after starting to run, the operation parameters of the air conditioner in the running state are acquired in real time, including the operation mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value, and the temperature difference coefficient, and the real-time capacity of the air conditioner in different operation modes is calculated by using a preset calculation formula, that is, the cooling or heating capacity of the air conditioner is calculated in real time. By calculating the real-time capacity of the air conditioner by using the preset calculation formula, the capacity of the air conditioner is calculated without needing 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 the capacity detection of the air conditioner does not need to be realized by adding an additional device, thereby reducing the hardware cost while reducing the hardware occupation space of the air conditioner.

[0093] In some embodiments, the temperature difference coefficients include an indoor dry-bulb temperature difference coefficient, an indoor wet-bulb temperature difference coefficient, and an outdoor dry-bulb temperature difference coefficient, the rated sensible heat capacity value includes a rated cooling sensible heat capacity value, the rated latent heat capacity value includes a rated cooling latent heat capacity value, and the determining of the cooling capacity of the air conditioner according to the operation mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value, the temperature difference coefficients, and the preset calculation formula includes: when the operation mode is in the cooling mode, determining a cooling actual sensible heat capacity value according to the rated indoor dry-bulb temperature, the indoor dry-bulb temperature, the indoor dry-bulb temperature difference coefficient, and the rated cooling sensible heat capacity value, and determining a cooling actual latent heat capacity value according to the rated indoor wet-bulb temperature, the indoor wet-bulb temperature, the indoor wet-bulb temperature difference coefficient, and the rated cooling latent heat capacity value; and determining the cooling capacity of the air conditioner according to the cooling actual sensible heat capacity value, the cooling actual latent heat capacity value, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, the outdoor dry-bulb temperature difference coefficient, and the preset calculation formula.

[0094] In the embodiments, after the air conditioner is started to operate, it is determined whether the air conditioner is in the cooling operation mode. When it is determined that the air conditioner is in the cooling operation mode, since the wet air heat changes in the cooling operation mode, a rated cooling latent heat capacity value Qsc is obtained, a cooling actual sensible heat capacity value is determined according to a rated indoor dry-bulb temperature TI1, an indoor dry-bulb temperature TID, an indoor dry-bulb temperature difference coefficient Ac, and the rated cooling sensible heat capacity value Qsc, that is, 【1-(TI1-TID)×Ac】×Qsc, a cooling actual latent heat capacity value is determined according to a rated indoor wet-bulb temperature TI2, an indoor wet-bulb temperature TIW, an indoor wet-bulb temperature difference coefficient Bc, and the rated cooling latent heat capacity value Qlc, that is, 【1-(TI2-TIW)×Bc】×Qlc, after the cooling actual sensible heat capacity value and the cooling actual latent heat capacity value are determined, the above parameters and a rated outdoor dry-bulb temperature TO1, an outdoor dry-bulb temperature TOD, and an outdoor dry-bulb temperature difference coefficient Cc are brought into a preset calculation formula to determine the cooling capacity of the air conditioner, for example, denoted as Q 制冷量 , so that the calculation result of the cooling capacity Q 制冷量 of the air conditioner is more accurate and adaptive.

[0095] In some embodiments, the determining of the cooling capacity of the air conditioner according to the cooling actual sensible heat capacity value, the cooling actual latent heat capacity value, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, the outdoor dry-bulb temperature difference coefficient, and the preset calculation formula includes: calculating a sum of the cooling actual sensible heat capacity value and the cooling actual latent heat capacity value; and bringing the sum of the cooling actual sensible heat capacity value and the cooling actual latent heat capacity value, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, and the outdoor dry-bulb temperature difference coefficient into the preset calculation formula to determine the cooling capacity of the air conditioner.

[0096] In embodiments, after determining the actual sensible capacity value of refrigeration, i.e., 【1-(TI1-TID)×Ac】×Qsc, and the actual latent capacity value of refrigeration, i.e., 【1-(TI2-TIW)×Bc】×Qlc, the sum of the actual sensible capacity value of refrigeration and the actual latent capacity value of refrigeration, i.e., 【1-(TI1-TID)×Ac】×Qsc+【1-(TI2-TIW)×Bc】×Qlc, is calculated, and the sum value, the rated outdoor dry-bulb temperature TO1, the outdoor dry-bulb temperature TOD, and the outdoor dry-bulb temperature difference coefficient Cc are brought into a preset calculation formula to determine the refrigerating capacity of the air conditioner, for example, denoted as Q 制冷量 , so that the calculation result of the refrigerating capacity Q 制冷量 of the air conditioner is more accurate and adaptive.

[0097] In some embodiments, the preset calculation formula includes:

[0098]

[0099] wherein QC is the refrigerating capacity, TID is the indoor dry-bulb temperature, TI1 is the rated indoor dry-bulb temperature, Ac is the indoor dry-bulb temperature difference coefficient, Qsc is the rated sensible capacity value of refrigeration, TI2 is the rated indoor wet-bulb temperature, TIW is the indoor wet-bulb temperature, Bc is the indoor wet-bulb temperature difference coefficient, Qlc is the rated latent capacity value of refrigeration, TO1 is the rated outdoor dry-bulb temperature, TOD is the outdoor dry-bulb temperature, and Cc is the outdoor dry-bulb temperature difference coefficient.

[0100] In embodiments, after determining the sum of the actual sensible capacity value of refrigeration and the actual latent capacity value of refrigeration, i.e., 【1-(TI1-TID)×Ac】×Qsc+【1-(TI2-TIW)×Bc】×Qlc, the sum value, the rated outdoor dry-bulb temperature TO1, the outdoor dry-bulb temperature TOD, and the outdoor dry-bulb temperature difference coefficient Cc are brought into a preset calculation formula, and the preset calculation formula is as follows:

[0101]

[0102] By calculating the refrigerating capacity Q 制冷量 of the air conditioner, the real-time capacity of the air conditioner in the refrigeration operation mode is determined.

[0103] In some embodiments, the temperature difference coefficient includes an indoor dry-bulb temperature difference coefficient and an outdoor dry-bulb temperature difference coefficient, the rated sensible heat capacity value includes a rated heating sensible heat capacity value, and the determining the heating capacity of the air conditioner according to the operation mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the indoor dry-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the temperature difference coefficient, and a preset calculation formula includes: when the operation mode is in the heating mode, determining a heating actual sensible heat capacity value according to the rated indoor dry-bulb temperature, the indoor dry-bulb temperature, the indoor dry-bulb temperature difference coefficient, and the rated heating sensible heat capacity value; and determining the heating capacity of the air conditioner by bringing the heating actual sensible heat capacity value, the outdoor dry-bulb temperature, the rated outdoor dry-bulb temperature, and the outdoor dry-bulb temperature difference coefficient into the preset calculation formula.

[0104] In an embodiment, after the air conditioner is started to operate, it is determined whether the air conditioner is in a heating operation mode, and when it is determined that the air conditioner is in the heating operation mode, a heating actual sensible heat capacity value is determined according to the rated indoor dry-bulb temperature TI3, the indoor dry-bulb temperature TID, an indoor dry-bulb temperature difference coefficient Ah, and a rated heating sensible heat capacity value Qsc, that is, 【1-(TID-TI3)×Ah】×Qsc, and the heating actual sensible heat capacity value, that is, 【1-(TID-TI3)×Ah】×Qsc, and an outdoor dry-bulb temperature TOD, a rated outdoor dry-bulb temperature TO2, and an outdoor dry-bulb temperature difference coefficient Ch are brought into a preset calculation formula to determine the heating capacity of the air conditioner, for example, denoted as QH. 制热量 , so that the calculation result of the heating capacity QH of the air conditioner is more accurate and adaptive. 制热量

[0105] In some embodiments, the preset calculation formula includes:

[0106]

[0107] wherein QH is the heating capacity, TID is the indoor dry-bulb temperature, TI3 is the rated indoor dry-bulb temperature, Ah is the indoor dry-bulb temperature difference coefficient, Qsc is the rated heating sensible heat capacity value, TOD is the outdoor dry-bulb temperature, TO2 is the rated outdoor dry-bulb temperature, and Ch is the outdoor dry-bulb temperature difference coefficient.

[0108] In an embodiment, after the heating actual sensible heat capacity value, that is, 【1-(TID-TI3)×Ah】×Qsc, is determined, the above parameters and the outdoor dry-bulb temperature TOD, the rated outdoor dry-bulb temperature TO2, and the outdoor dry-bulb temperature difference coefficient Ch are brought into a preset calculation formula, and the preset calculation formula is as follows:

[0109]

[0110] By calculating the heating capacity QH of the air conditioner, 制热量 , the real-time capacity of the air conditioner in the heating operation mode is determined.​

[0111] The cooling capacity Q 制冷量 and the heating capacity Q 制热量 of the air conditioner are determined, so as to determine the real-time capacity of the air conditioner in different operation modes.

[0112] In some embodiments, after obtaining the cooling capacity or the heating capacity of the air conditioner, the cooling capacity or the heating capacity is sent to a user terminal and / or displayed on a display screen of the air conditioner.

[0113] In embodiments, after obtaining the cooling capacity or the heating capacity of the air conditioner, the controller sends the cooling capacity or the heating capacity to a user terminal, such as a mobile phone APP, and / or displays the cooling capacity or the heating capacity on a display screen of the air conditioner, so as to facilitate the user to understand the real-time state of the air conditioner.

[0114] According to the capacity calculation method of the air conditioner in the embodiments of the present application, after starting operation, the running parameters of the air conditioner in the running state are obtained in real time, including the running mode, the rated outdoor dry-bulb temperature, the rated indoor dry-bulb temperature, the rated indoor wet-bulb temperature, the indoor dry-bulb temperature, the indoor wet-bulb temperature, the outdoor dry-bulb temperature, the rated sensible heat capacity value, the rated latent heat capacity value and the temperature difference coefficient, and the real-time capacity of the air conditioner in different running modes is calculated by using a preset calculation formula, that is, the cooling capacity or the heating capacity of the air conditioner is calculated in real time. By using the preset calculation formula to calculate the real-time capacity of the air conditioner, 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 hardware cost is reduced without increasing additional devices to detect the capacity of the air conditioner, so as to reduce the hardware cost while reducing the hardware occupation space of the air conditioner.

[0115] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example.

[0116] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An air conditioner characterized by comprising: Comprising: a compressor for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging it to a condenser; an indoor unit having a return air inlet; an indoor dry-bulb temperature sensor arranged at the return air inlet for detecting an indoor dry-bulb temperature; an indoor wet-bulb temperature sensor arranged at the return air inlet for detecting an indoor wet-bulb temperature; an outdoor dry-bulb temperature sensor for detecting an outdoor dry-bulb temperature; an outdoor wet-bulb temperature sensor for detecting an outdoor wet-bulb temperature; a controller configured to: obtain an operating mode of the air conditioner, a rated outdoor dry-bulb temperature, a rated indoor dry-bulb temperature, a rated indoor wet-bulb temperature, an indoor dry-bulb temperature, an indoor wet-bulb temperature, an outdoor dry-bulb temperature, a rated sensible heat capacity value, a rated latent heat capacity value, and a temperature difference coefficient, wherein the temperature difference coefficient comprises an indoor dry-bulb temperature difference coefficient, an indoor wet-bulb temperature difference coefficient, and an outdoor dry-bulb temperature difference coefficient, the rated sensible heat capacity value comprises a rated cooling sensible heat capacity value, and the rated latent heat capacity value comprises a rated cooling latent heat capacity value; when the operating mode is in a cooling mode, determine a cooling actual sensible heat capacity value according to the rated indoor dry-bulb temperature, the indoor dry-bulb temperature, the indoor dry-bulb temperature difference coefficient, and the rated cooling sensible heat capacity value, and determine a cooling actual latent heat capacity value according to the rated indoor wet-bulb temperature, the indoor wet-bulb temperature, the indoor wet-bulb temperature difference coefficient, and the rated cooling latent heat capacity value; calculate a sum of the cooling actual sensible heat capacity value and the cooling actual latent heat capacity value; determine a cooling capacity of the air conditioner by inputting the sum of the cooling actual sensible heat capacity value and the cooling actual latent heat capacity value, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, and the outdoor dry-bulb temperature difference coefficient into a preset calculation formula. The preset calculation formula comprises: Wherein, the is the refrigerating capacity, the is the indoor dry-bulb temperature, is the rated indoor dry-bulb temperature, is the indoor dry-bulb temperature difference coefficient, is the rated sensible heat capacity value, is the rated indoor wet-bulb temperature, is the indoor wet-bulb temperature, is the indoor wet-bulb temperature difference coefficient, is the rated latent heat capacity value, is the rated outdoor dry-bulb temperature, is the outdoor dry-bulb temperature, is the outdoor dry-bulb temperature difference coefficient.

2. The air conditioner of claim 1, wherein the rated sensible heat capacity value further comprises a rated heating sensible heat capacity value, and the controller is further configured to: when the operating mode is in a heating mode, determine a heating actual sensible heat capacity value according to the rated indoor dry-bulb temperature, the indoor dry-bulb temperature, the indoor dry-bulb temperature difference coefficient, and the rated heating sensible heat capacity value; determine a heating capacity of the air conditioner by inputting the heating actual sensible heat capacity value, the outdoor dry-bulb temperature, the rated outdoor dry-bulb temperature, and the outdoor dry-bulb temperature difference coefficient into a preset calculation formula.

3. The air conditioner of claim 2, wherein The preset calculation formula comprises: wherein the is the heating capacity, is the indoor dry-bulb temperature, is the rated indoor dry-bulb temperature, is the indoor dry-bulb temperature difference coefficient, is the rated sensible heating capacity, is the outdoor dry-bulb temperature, is the rated outdoor dry-bulb temperature, is the outdoor dry-bulb temperature difference coefficient.

4. The air conditioner according to claim 1 or 2, characterized by after obtaining the cooling capacity or the heating capacity of the air conditioner, the controller is further configured to: send the cooling capacity or the heating capacity to a user terminal and / or display the cooling capacity or the heating capacity on a display screen of the air conditioner.

5. A method of calculating a capacity of an air conditioner, characterized by, Comprising: obtaining an operating mode of the air conditioner, a rated outdoor dry-bulb temperature, a rated indoor dry-bulb temperature, a rated indoor wet-bulb temperature, an indoor dry-bulb temperature, an indoor wet-bulb temperature, an outdoor dry-bulb temperature, a rated sensible heat capacity value, a rated latent heat capacity value, and a temperature difference coefficient, wherein the temperature difference coefficient comprises an indoor dry-bulb temperature difference coefficient, an indoor wet-bulb temperature difference coefficient, and an outdoor dry-bulb temperature difference coefficient, the rated sensible heat capacity value comprises a rated cooling sensible heat capacity value, and the rated latent heat capacity value comprises a rated cooling latent heat capacity value; When the operation mode is in the cooling mode, a cooling actual sensible heat capacity value is determined according to the rated indoor dry-bulb temperature, the indoor dry-bulb temperature, a difference coefficient of the indoor dry-bulb temperature and the rated cooling sensible heat capacity value, and a cooling actual latent heat capacity value is determined according to the rated indoor wet-bulb temperature, the indoor wet-bulb temperature, a difference coefficient of the indoor wet-bulb temperature and the rated latent cooling capacity value; a sum of the cooling actual sensible heat capacity value and the cooling actual latent heat capacity value is calculated; the sum of the cooling actual sensible heat capacity value and the cooling actual latent heat capacity value, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature and a difference coefficient of the outdoor dry-bulb temperature are brought into a preset calculation formula to determine a cooling capacity of the air conditioner; the preset calculation formula comprises: Wherein, the is the refrigerating capacity, the is the indoor dry-bulb temperature, is the rated indoor dry-bulb temperature, is the indoor dry-bulb temperature difference coefficient, is the rated refrigeration sensible heat capacity value, is the rated indoor wet-bulb temperature, is the indoor wet-bulb temperature, is the indoor wet-bulb temperature difference coefficient, is the rated refrigeration latent heat capacity value, is the rated outdoor dry-bulb temperature, is the outdoor dry-bulb temperature, is the outdoor dry-bulb temperature difference coefficient.

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