Air conditioner and capacity calculation method thereof

Abstract

The invention 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, 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; according to the parameters and a preset calculation formula, the refrigerating capacity or the heating capacity of the air conditioner is determined, additional devices do not need to be added, the occupied space of the air conditioner is reduced, and meanwhile the cost is reduced.

Description

Technical Field

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

[0002] Since air conditioners must have the capacity calculation function and air conditioners without this function are not allowed to be sold, at present, air conditioners can add temperature detection devices and pressure detection devices at the inlet and outlet of the indoor motor evaporator to detect the temperature and pressure of the inlet and outlet of the evaporator to 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, intake temperature, air supply port temperature, etc. of the air conditioner to determine the exhaust enthalpy value, intake enthalpy value, lubricating oil enthalpy value, etc., and comprehensively calculate the air conditioner capacity through the enthalpy difference method and correction.

[0003] However, the above method requires additional devices to be added to the air conditioner, which occupies the internal space of the air conditioner, and the device structure is complex, resulting in a high cost of the air conditioner. Summary of the invention

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

[0005] Therefore, an object of the present invention is to provide an air conditioner which does not require any additional devices, thereby reducing the space occupied by the air conditioner and lowering the cost.

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

[0007] In order to achieve the above-mentioned purpose, an embodiment of the first aspect of the present invention provides an air conditioner, which includes: a compressor, which is used to compress low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharge it to a condenser; an indoor unit, which has a return air outlet; an indoor dry-bulb temperature sensor, which is arranged at the return air outlet, and is used to detect the indoor dry-bulb temperature; an indoor wet-bulb temperature sensor, which is arranged at the return air outlet, and is used to detect the indoor wet-bulb temperature; an outdoor dry-bulb temperature sensor, which is arranged at the return air outlet, and is used to detect the outdoor dry-bulb temperature; an outdoor wet-bulb temperature sensor, which is arranged at the return air outlet, and is used to detect the outdoor wet-bulb temperature; a controller, The method is configured to: obtain 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 heating capacity value, rated latent heating capacity value and temperature difference coefficient of the air conditioner; determine the cooling capacity or heating capacity of the air conditioner 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 heating capacity value, the rated latent heating capacity value, the temperature difference coefficient and a preset calculation formula.

[0008] The air conditioner according to the embodiment of the present invention obtains the operating parameters of the air conditioner in its operating state, including 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 and temperature difference coefficient, and adopts a preset calculation formula to calculate the real-time capacity of the air conditioner in different operating modes, that is, to measure the cooling capacity or heating capacity of the air conditioner in real time. By adopting the preset calculation formula to calculate the real-time capacity of the air conditioner, there is no need 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 there is no need to realize the capacity detection of the air conditioner by adding additional devices, thereby reducing the hardware cost while reducing the hardware space occupied by the air conditioner.

[0009] 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. The cooling capacity of the air conditioner is determined 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. , the controller is configured as follows: when the operation mode is in cooling mode, the actual sensible heat capacity of 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 of cooling, and the actual latent heat capacity of 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; the cooling capacity of the air conditioner is determined according to the actual sensible heat capacity of cooling, the actual latent heat capacity of cooling, 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 based on the actual sensible cooling capacity value, the actual latent cooling 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 the sum of the actual sensible cooling capacity value and the actual latent cooling capacity value; substitute the sum of the actual sensible cooling capacity value and the actual latent cooling 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.

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

[0012]

[0013] Among them, 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 refrigeration sensible heat capacity value, 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 refrigeration latent heat capacity value, 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.

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

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

[0016]

[0017] Among them, QH is the heating amount, 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.

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

[0019] In order to achieve the above-mentioned purpose, an embodiment of the second aspect of the present invention proposes a method for calculating the capacity of an air conditioner, the method comprising: obtaining 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 and temperature difference coefficient of the air conditioner; determining the cooling capacity or heating capacity of the air conditioner 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.

[0020] According to the capacity calculation method of the air conditioner in the embodiment of the present invention, the operating parameters of the air conditioner in the operating state are obtained, including 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 and temperature difference coefficient, and a preset calculation formula is used to calculate the real-time capacity of the air conditioner in different operating modes, that is, the cooling capacity or heating capacity of the air conditioner is measured in real time. By using the preset calculation formula to calculate the real-time capacity of the air conditioner, there is no need 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 there is no need to realize the capacity detection of the air conditioner by adding additional devices, thereby reducing the hardware cost while reducing the hardware space occupied by the air conditioner.

[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. The air conditioner is determined 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. The cooling capacity includes: when the operating mode is in the cooling mode, the actual sensible cooling 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 sensible cooling capacity value, and the actual latent cooling 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 latent cooling capacity value; the cooling capacity of the air conditioner is determined according to the actual sensible cooling capacity value, the actual latent cooling 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.

[0022] In some embodiments, the cooling capacity of the air conditioner is determined based on the actual sensible cooling capacity value, the actual latent cooling 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 actual sensible cooling capacity value and the actual latent cooling capacity value; substituting the sum of the actual sensible cooling capacity value and the actual latent cooling 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.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

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

[0026] Figure 2 is a flow chart of a method for calculating the cooling capacity of an air conditioner according to an embodiment of the present invention;

[0027] Figure 3 is a flow chart of a method for calculating the cooling capacity of an air conditioner according to an embodiment of the present invention;

[0028] Figure 4 is a flow chart of a method for calculating the heating capacity of an air conditioner according to an embodiment of the present invention;

[0029] Figure 5 is a flow chart of a method for calculating the capacity of an air conditioner according to an embodiment of the present invention;

[0030] Figure 6 is a flow chart of a method for calculating the capacity of an air conditioner according to an embodiment of the present invention.

[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 invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0034] The air conditioner of the present invention 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 the air that has been conditioned and heat-exchanged.

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

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

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

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

[0039] At present, the air conditioner obtains the variable operating condition parameters of the air conditioner based on engineering test experience to determine the actual sensible heating capacity value and actual latent heating capacity value of the air conditioner under different operating modes, and presets the variable operating condition parameters of the air conditioner and their corresponding sensible heating capacity value and latent heating capacity value table to the controller, which takes up more storage space of the air conditioner and affects the subsequent product function upgrade.

[0040] Therefore, the air conditioner in the embodiment of the present invention takes the rated operating parameters of the rated working conditions as the standard. When the air conditioner is running, the capacity of the air conditioner is calculated in real time based on the temperature difference between the actual indoor dry-bulb temperature, indoor wet-bulb temperature and outdoor dry-bulb temperature and the rated operating parameters and a preset calculation formula.

[0041] Reference below Figure 1-Figure 5 An air conditioner 1 according to an embodiment of the present invention will be described.

[0042] like Figure 1 As shown, the air conditioner 1 of the embodiment of the present invention comprises: 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 used to compress the low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure refrigerant gas and discharge it to the condenser; the indoor unit 12 has a return air outlet; the indoor dry-bulb temperature sensor 13 is arranged at the return air outlet to detect the indoor dry-bulb temperature; the indoor wet-bulb temperature sensor 14 is arranged at the return air outlet to detect the indoor wet-bulb temperature; the outdoor dry-bulb temperature sensor 15 is arranged at the return air outlet to detect the outdoor dry-bulb temperature; the outdoor wet-bulb temperature sensor 16 is arranged at the return air outlet to detect the outdoor wet-bulb temperature; the controller 17 is configured to: obtain the operation 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 and temperature difference coefficient of the air conditioner 1; determine the cooling capacity or heating capacity of the air conditioner 1 according to the operation 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.

[0044] In the embodiment, after the air conditioner 1 is turned on and operated, the operating parameters of the air conditioner 1 in the operating state are obtained in real time, including obtaining the operating mode of the air conditioner 1, the operating mode includes, for example, a heating mode and a cooling mode, etc.; the indoor dry-bulb temperature is obtained according to the indoor dry-bulb temperature sensor 13, for example, recorded as TID, the indoor wet-bulb temperature is obtained according to the indoor wet-bulb temperature sensor 14, for example, recorded as TIW, and the outdoor dry-bulb temperature is obtained according to the outdoor dry-bulb temperature sensor 15, for example, recorded as TOD.

[0045] The rated outdoor dry-bulb temperature in the rated cooling operation mode is obtained, for example, recorded as TO1, the rated indoor dry-bulb temperature is obtained, for example, recorded as TI1, and the rated indoor wet-bulb temperature is obtained, for example, recorded as TO2, and the rated indoor dry-bulb temperature is obtained, for example, recorded as TI3. ​​For example, the rated outdoor dry-bulb temperature TO1 of the rated cooling operation 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 temperature TO2 of the rated heating operation mode is 7°C, and the rated indoor dry-bulb temperature TI3 is 20°C.

[0046] The rated sensible heat capacity value is obtained, for example, recorded 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 cooling mode, the rated sensible heat capacity value Qsc includes the rated cooling sensible heat capacity value; when the operating mode of the air conditioner 1 is in heating mode, the rated sensible heat capacity value Qsc includes the rated heating sensible heat capacity value; since there is a change in the heat of humid air when the operating mode of the air conditioner 1 is in cooling mode, the rated latent heat capacity value is obtained, for example, recorded 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 operating modes, the corresponding temperature difference coefficient is different. For example, when the operating mode of the air conditioner 1 is in cooling mode, the temperature difference coefficient includes the indoor dry-bulb temperature difference coefficient, for example, recorded as Ac, the indoor wet-bulb temperature difference coefficient, for example, recorded as Bc, and the outdoor dry-bulb temperature difference coefficient, for example, recorded as Cc; when the operating mode of the air conditioner 1 is in heating mode, the temperature difference coefficient includes the indoor dry-bulb temperature difference coefficient, for example, recorded as Ah, and the outdoor dry-bulb temperature difference coefficient Ch.

[0048] After obtaining the above-mentioned operating parameters, a preset calculation formula is used and combined with the above-mentioned operating parameters to determine the capacity of the air conditioner 1 corresponding to different operating modes. For example, when the operating mode of the air conditioner 1 is in cooling mode, the preset calculation formula is used and combined with the above-mentioned operating parameters to determine the cooling capacity of the air conditioner 1; when the operating mode of the air conditioner 1 is in heating mode, the preset calculation formula is used and combined with the above-mentioned operating parameters to determine the heating capacity of the air conditioner 1.

[0049] According to the air conditioner 1 of the embodiment of the present invention, after being turned on and running, the operating parameters of the air conditioner 1 in the operating state are obtained in real time, including 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 and temperature difference coefficient, and a preset calculation formula is used to calculate the real-time capacity of the air conditioner 1 in different operating modes, that is, the cooling capacity or heating capacity of the air conditioner 1 is measured in real time. By using the preset calculation formula to calculate the real-time capacity of the air conditioner 1, there is no need 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 there is no need to realize the capacity detection of the air conditioner 1 by adding additional devices, thereby reducing the hardware space occupied by the air conditioner 1 and reducing the hardware cost.

[0050] 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 determining the cooling 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, the controller 17 is configured as follows: when the operating mode is in the cooling mode, the actual sensible heat capacity value of the refrigeration 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, and the actual latent heat capacity value of the refrigeration 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 refrigeration capacity value; the cooling capacity of the air conditioner 1 is determined according to the actual sensible heat capacity value of the refrigeration, the actual latent heat capacity value of the refrigeration, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, the outdoor dry-bulb temperature difference coefficient and a preset calculation formula.

[0051] In an embodiment, Figure 2 FIG. 1 is a flow chart of a method for calculating the cooling capacity of an air conditioner according to an embodiment of the present invention. After the air conditioner 1 is turned on and operated, it is determined whether the air conditioner 1 is in the cooling operation mode. When it is determined that the air conditioner 1 is in the cooling operation mode, since there is a change in the heat of humid air in the cooling operation mode, the rated cooling latent heat capacity value Qsc is obtained, and the actual cooling sensible heat capacity value is determined according to the rated indoor dry bulb temperature TI1, the indoor dry bulb temperature TID, the indoor dry bulb temperature difference coefficient Ac and the rated cooling sensible heat capacity value Qsc, that is, [1-(TI1-TID)×Ac]×Qsc, and the actual cooling latent heat capacity value is determined according to the rated indoor wet bulb temperature TI2, the indoor wet bulb temperature TIW, the indoor wet bulb temperature difference coefficient Bc and the rated latent cooling capacity value Qlc, that is, [1-(TI2-TIW)×Bc]×Qlc. After determining the actual cooling sensible heat capacity value and the actual cooling latent heat capacity value, the above parameters and 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 the preset calculation formula to determine the cooling capacity of the air conditioner 1, for example, recorded as Q 制冷量 , so that the cooling capacity Q of air conditioner 1 制冷量 The calculation results are more accurate.

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

[0053] In an embodiment, Figure 3 , which is a flow chart 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 cooling capacity value, i.e., [1-(TI1-TID)×Ac]×Qsc, and the actual latent cooling capacity value, i.e., [1-(TI2-TIW)×Bc]×Qlc, the sum of the actual sensible cooling capacity value and the actual latent cooling capacity value is calculated, i.e., [1-(TI1-TID)×Ac]×Qsc+[1-(TI2-TIW)×Bc]×Qlc, and the above sum value and 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 to determine the cooling capacity of the air conditioner 1, for example, recorded as Q 制冷量 , so that the cooling capacity Q of air conditioner 1 制冷量 The calculation results are more accurate.

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

[0055]

[0056] Wherein, 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 value, 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 value, 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 the embodiment, after determining the sum of the actual sensible heat capacity value of refrigeration and the actual latent heat capacity value of refrigeration, that is, [1-(TI1-TID)×Ac]×Qsc+[1-(TI2-TIW)×Bc]×Qlc, the above sum and 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 the preset calculation formula, and the preset calculation formula is as follows:

[0058]

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

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

[0061] In an embodiment, Figure 4 As shown, it is a flow chart 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 and operated, it is determined whether the air conditioner 1 is in the heating operation mode. When it is determined that the air conditioner 1 is in the heating operation mode, the actual heating sensible heating capacity value is determined according to the rated indoor dry bulb temperature TI3, the indoor dry bulb temperature TID, the indoor dry bulb temperature difference coefficient Ah and the rated heating sensible heating capacity value Qsc, that is, [1-(TID-TI3)×Ah]×Qsc. The actual heating sensible heating capacity value, that is, [1-(TID-TI3)×Ah]×Qsc, and 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 to determine the heating capacity of the air conditioner 1, for example, recorded as Q 制热量 , so that the heating capacity of air conditioner 1 is Q 制热量 The calculation results are more accurate.

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

[0063]

[0064] 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.

[0065] In the embodiment, after determining the actual sensible heating capacity value of [1-(TID-TI3)×Ah]×Qsc, 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 substituted into the preset calculation formula, and the preset calculation formula is as follows:

[0066]

[0067] By calculating the heating capacity Q of air conditioner 1 制热量 , determine the real-time capacity of the air conditioner 1 when it is in the heating operation mode.

[0068] By calculating the cooling capacity Q of air conditioner 1 制冷量 And heating capacity Q 制热量 , thereby determining the real-time capability of the air conditioner 1 when it is in different operating modes.

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

[0070] In an embodiment, after obtaining the cooling capacity or heating capacity of the air conditioner 1, the controller 17 sends the cooling capacity or heating capacity to a user terminal such as a mobile phone APP, and / or sends it 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.

[0071] Reference below Figure 5 The capacity calculation method of the air conditioner according to the embodiment of the present invention is described by way of example.

[0072] like Figure 5 As shown, the capacity calculation method of the air conditioner according to the embodiment of the present invention at least includes steps S11 to S18.

[0073] Step S11, the air conditioner is turned on and operated.

[0074] Step S12, obtaining 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 and temperature difference coefficient of the air conditioner.

[0075] Step S13, determining whether the air conditioner is in cooling operation mode, if so, executing step S15; otherwise, executing step S14.

[0076] Step S14, determining whether the air conditioner is in a heating operation mode, if so, executing step S17; otherwise, executing step S11.

[0077] Step S15, determining the actual sensible cooling 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 sensible cooling capacity value, and determining the actual latent cooling 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 latent cooling capacity value.

[0078] Step S16, calculate the sum of the actual sensible heat capacity value and the actual latent heat capacity value of refrigeration, and bring 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 into a preset calculation formula to determine the cooling capacity of the air conditioner.

[0079] Step S17, determine the actual sensible heating 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 heating capacity value; bring the actual sensible heating 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 to determine the heating capacity of the air conditioner.

[0080] Step S18, sending the cooling capacity or heating capacity to the user terminal and / or displaying it on the display screen of the air conditioner.

[0081] According to the air conditioner 1 of the embodiment of the present invention, after being turned on and running, the operating parameters of the air conditioner 1 in the operating state are obtained in real time, including 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 and temperature difference coefficient, and a preset calculation formula is used to calculate the real-time capacity of the air conditioner 1 in different operating modes, that is, the cooling capacity or heating capacity of the air conditioner 1 is measured in real time. By using the preset calculation formula to calculate the real-time capacity of the air conditioner 1, there is no need 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 there is no need to realize the capacity detection of the air conditioner 1 by adding additional devices, thereby reducing the hardware space occupied by the air conditioner 1 and reducing the hardware cost.

[0082] Reference below Figure 6 A method for calculating the capacity of an air conditioner according to an embodiment of the present invention is described.

[0083] like Figure 6 As shown, the capacity calculation method of the air conditioner according to the embodiment of the present invention at least includes steps S1 and S2.

[0084] Step S1, obtaining 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 and temperature difference coefficient of the air conditioner.

[0085] In the embodiment, after the air conditioner is turned on, the operating parameters of the air conditioner in the operating state are obtained in real time, including obtaining the operating mode of the air conditioner, the operating mode includes, for example, heating mode and cooling mode, etc.; obtaining the indoor dry-bulb temperature according to the indoor dry-bulb temperature sensor, for example, recorded as TID, obtaining the indoor wet-bulb temperature according to the indoor wet-bulb temperature sensor, for example, recorded as TIW, and obtaining the outdoor dry-bulb temperature according to the outdoor dry-bulb temperature sensor, for example, recorded as TOD. Among them, the compressor is used to compress the 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 outlet; the indoor dry-bulb temperature sensor is arranged at the return air outlet for detecting the indoor dry-bulb temperature; the indoor wet-bulb temperature sensor is arranged at the return air outlet for detecting the indoor wet-bulb temperature; the outdoor dry-bulb temperature sensor is arranged at the return air outlet for detecting the outdoor dry-bulb temperature; the outdoor wet-bulb temperature sensor is arranged at the return air outlet for detecting the outdoor wet-bulb temperature.

[0086] The rated outdoor dry-bulb temperature in the rated cooling operation mode is obtained, for example, recorded as TO1, the rated indoor dry-bulb temperature is obtained, for example, recorded as TI1, and the rated indoor wet-bulb temperature is obtained, for example, recorded as TO2, and the rated indoor dry-bulb temperature is obtained, for example, recorded as TI3. ​​For example, the rated outdoor dry-bulb temperature TO1 of the rated cooling operation 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 temperature TO2 of the rated heating operation mode is 7°C, and the rated indoor dry-bulb temperature TI3 is 20°C.

[0087] The rated sensible heating capacity value is obtained, for example, recorded as Qsc. When the air conditioner is in different operating modes, the corresponding rated sensible heating capacity value Qsc is different. For example, when the operating mode of the air conditioner is in cooling mode, the rated sensible heating capacity value Qsc includes the rated cooling sensible heating capacity value; when the operating mode of the air conditioner is in heating mode, the rated sensible heating capacity value Qsc includes the rated heating sensible heating capacity value; since there is a change in the heat of humid air when the operating mode of the air conditioner is in cooling mode, the rated latent heating capacity value is obtained, for example, recorded as Qlc.

[0088] The temperature difference coefficient is obtained, that is, the temperature difference between the current temperature and the rated temperature. When the air conditioner is in different operating modes, the corresponding temperature difference coefficient is different. For example, when the operating mode of the air conditioner is in cooling mode, the temperature difference coefficient includes the indoor dry-bulb temperature difference coefficient, such as Ac, the indoor wet-bulb temperature difference coefficient, such as Bc, and the outdoor dry-bulb temperature difference coefficient, such as Cc; when the operating mode of the air conditioner is in heating mode, the temperature difference coefficient includes the indoor dry-bulb temperature difference coefficient, such as Ah, and the outdoor dry-bulb temperature difference coefficient Ch.

[0089] Step S2, determining the cooling capacity or heating capacity of the air conditioner according to 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.

[0090] In an embodiment, after obtaining 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, a preset calculation formula is used in combination with the above-mentioned operating parameters to determine the capacity of the corresponding air conditioner. For example, when the operating mode of the air conditioner is in cooling mode, the preset calculation formula is used in combination with the above-mentioned operating parameters to determine the cooling capacity of the air conditioner; when the operating mode of the air conditioner is in heating mode, the preset calculation formula is used in combination with the above-mentioned operating parameters to determine the heating capacity of the air conditioner.

[0091] The capacity calculation method of the air conditioner in the embodiment of the present invention is based on the rated operating parameters of the rated working conditions. When the air conditioner is running, the capacity of the air conditioner is calculated in real time based on the temperature difference between the actual indoor dry-bulb temperature, indoor wet-bulb temperature and outdoor dry-bulb temperature and the rated operating parameters and a preset calculation formula.

[0092] According to the capacity calculation method of the air conditioner according to the embodiment of the present invention, after the air conditioner is turned on and operated, the operating parameters of the air conditioner in the operating state are obtained in real time, including 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 and temperature difference coefficient, and a preset calculation formula is used to calculate the real-time capacity of the air conditioner in different operating modes, that is, the cooling capacity or heating capacity of the air conditioner is measured in real time. By using the preset calculation formula to calculate the real-time capacity of the air conditioner, there is no need 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 there is no need to realize the capacity detection of the air conditioner by adding additional devices, thereby reducing the hardware space occupied by the air conditioner and reducing the hardware cost.

[0093] 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 determining the cooling capacity of the air conditioner 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, the steps include: when the operating mode is in the cooling mode, determining the 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 refrigeration sensible heat capacity value, and determining the 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 latent refrigeration capacity value; determining the cooling capacity of the air conditioner according to the actual sensible heat capacity value of refrigeration, the actual latent heat capacity value of refrigeration, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, the outdoor dry-bulb temperature difference coefficient and a preset calculation formula.

[0094] In the embodiment, after the air conditioner is turned on and operated, 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 there is a change in the heat of humid air in the cooling operation mode, the rated cooling latent heat capacity value Qsc is obtained, and the actual cooling sensible heat capacity value is determined according to the rated indoor dry bulb temperature TI1, the indoor dry bulb temperature TID, the indoor dry bulb temperature difference coefficient Ac and the rated cooling sensible heat capacity value Qsc, that is, [1-(TI1-TID)×Ac]×Qsc, and the actual cooling latent heat capacity value is determined according to the rated indoor wet bulb temperature TI2, the indoor wet bulb temperature TIW, the indoor wet bulb temperature difference coefficient Bc and the rated latent cooling capacity value Qlc, that is, [1-(TI2-TIW)×Bc]×Qlc. After determining the actual cooling sensible heat capacity value and the actual cooling latent heat capacity value, the above parameters and 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 to determine the cooling capacity of the air conditioner, for example, recorded as Q 制冷量 , so that the cooling capacity of the air conditioner is Q 制冷量 The calculation results are more accurate.

[0095] In some embodiments, the cooling capacity of the air conditioner is determined based on the actual sensible cooling capacity value, the actual latent cooling capacity value, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, the outdoor dry-bulb temperature difference coefficient and a preset calculation formula, including: calculating the sum of the actual sensible cooling capacity value and the actual latent cooling capacity value; substituting the sum of the actual sensible cooling capacity value and the actual latent cooling 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 the embodiment, after determining the actual sensible heat capacity value of cooling, i.e., [1-(TI1-TID)×Ac]×Qsc, and the actual latent heat capacity value of cooling, i.e., [1-(TI2-TIW)×Bc]×Qlc, the sum of the actual sensible heat capacity value of cooling and the actual latent heat capacity value of cooling is calculated, i.e., [1-(TI1-TID)×Ac]×Qsc+[1-(TI2-TIW)×Bc]×Qlc, and the above sum value and 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 to determine the cooling capacity of the air conditioner, for example, recorded as Q 制冷量 , so that the cooling capacity of the air conditioner is Q 制冷量 The calculation results are more accurate.

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

[0098]

[0099] Wherein, 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 value, 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 value, 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 the embodiment, after determining the sum of the actual sensible heat capacity value of refrigeration and the actual latent heat capacity value of refrigeration, that is, [1-(TI1-TID)×Ac]×Qsc+[1-(TI2-TIW)×Bc]×Qlc, the above sum and 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 the preset calculation formula, and the preset calculation formula is as follows:

[0101]

[0102] By calculating the cooling capacity Q of the air conditioner 制冷量 , determine the real-time capability of the air conditioner when it is in cooling operation mode.

[0103] In some embodiments, the temperature difference coefficient includes an indoor dry-bulb temperature difference coefficient and an outdoor dry-bulb temperature difference coefficient, and the rated sensible heating capacity value includes a rated heating sensible heating capacity value. The heating capacity of the air conditioner is determined according to the operating 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 heating capacity value, the temperature difference coefficient and a preset calculation formula, including: when the operating mode is in the heating mode, determining the actual heating sensible heating 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 heating capacity value; substituting the actual heating sensible heating 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 to determine the heating capacity of the air conditioner.

[0104] In the embodiment, after the air conditioner is turned on and operated, it is determined whether the air conditioner is in the heating operation mode. When it is determined that the air conditioner is in the heating operation mode, the actual sensible heating capacity value is determined according to the rated indoor dry-bulb temperature TI3, the indoor dry-bulb temperature TID, the indoor dry-bulb temperature difference coefficient Ah and the rated heating sensible heating capacity value Qsc, that is, [1-(TID-TI3)×Ah]×Qsc. The actual sensible heating capacity value, that is, [1-(TID-TI3)×Ah]×Qsc, 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 to determine the heating capacity of the air conditioner, for example, recorded as Q 制热量 , so that the air conditioner's heating capacity is Q 制热量 The calculation results are more accurate.

[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 the embodiment, after determining the actual sensible heating capacity value of [1-(TID-TI3)×Ah]×Qsc, 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 substituted into the preset calculation formula, and the preset calculation formula is as follows:

[0109]

[0110] By calculating the air conditioner heating capacity Q 制热量 , determine the real-time capability of the air conditioner when it is in heating operation mode.

[0111] By calculating the cooling capacity Q of the air conditioner 制冷量 And heating capacity Q 制热量 , thereby determining the real-time capabilities of the air conditioner in different operating modes.

[0112] In some embodiments, after obtaining the cooling capacity or heating capacity of the air conditioner, the method further includes: sending the cooling capacity or heating capacity to a user terminal and / or displaying it on a display screen of the air conditioner.

[0113] In an embodiment, after obtaining the cooling capacity or heating capacity of the air conditioner, the controller sends the cooling capacity or heating capacity to a user terminal such as a mobile phone APP, and / or sends it 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 capacity calculation method of the air conditioner according to the embodiment of the present invention, after the air conditioner is turned on and operated, the operating parameters of the air conditioner in the operating state are obtained in real time, including 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 and temperature difference coefficient, and a preset calculation formula is used to calculate the real-time capacity of the air conditioner in different operating modes, that is, the cooling capacity or heating capacity of the air conditioner is measured in real time. By using the preset calculation formula to calculate the real-time capacity of the air conditioner, there is no need 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 there is no need to realize the capacity detection of the air conditioner by adding additional devices, thereby reducing the hardware space occupied by the air conditioner and reducing the hardware cost.

[0115] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

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

Claims

1. An air conditioner, characterized in that: include: The compressor is used to compress the 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 vent; An indoor dry-bulb temperature sensor is arranged at the return air outlet and is used to detect the indoor dry-bulb temperature; An indoor wet-bulb temperature sensor is arranged at the return air outlet and is used to detect the indoor wet-bulb temperature; An outdoor dry-bulb temperature sensor is arranged at the return air outlet and is used to detect the outdoor dry-bulb temperature; An outdoor wet-bulb temperature sensor is arranged at the return air outlet and is used to detect the outdoor wet-bulb temperature; The controller is configured to: obtain 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; The cooling capacity or heating capacity of the air conditioner is determined 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.

2. The air conditioner according to claim 1, characterized in that: 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 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 coefficient and a preset calculation formula, the controller is configured as follows: When the operation mode is in cooling mode, the actual sensible heat capacity of 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 of cooling, and the actual latent heat capacity of 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; The cooling capacity of the air conditioner is determined according to the actual sensible heat capacity value of refrigeration, the actual latent heat capacity value of refrigeration, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, the outdoor dry-bulb temperature difference coefficient and the preset calculation formula.

3. The air conditioner according to claim 2, characterized in that: When determining the cooling capacity of the air conditioner according to the actual sensible heat capacity value of refrigeration, the actual latent heat capacity value of refrigeration, 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 as follows: Calculating the sum of the actual sensible heat capacity value of refrigeration and the actual latent heat capacity value of refrigeration; The sum of the actual sensible heat capacity value and the actual latent heat capacity value, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, and the outdoor dry-bulb temperature difference coefficient are substituted into the preset calculation formula to determine the cooling capacity of the air conditioner.

4. The air conditioner according to claim 3, characterized in that: The preset calculation formula includes: Among them, 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 refrigeration sensible heat capacity value, 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 refrigeration latent heat capacity value, 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.

5. The air conditioner according to claim 1, characterized in that: The temperature difference coefficient includes an indoor dry-bulb temperature difference coefficient and an outdoor dry-bulb temperature difference coefficient, and the rated sensible heating capacity value includes a rated heating sensible heating capacity value. 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 heating capacity value, the temperature difference coefficient and a preset calculation formula, the controller is configured as follows: When the operation mode is in the heating mode, the actual heating sensible heating 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 heating sensible heating capacity value; The actual sensible heating capacity value, the outdoor dry-bulb temperature, the rated outdoor dry-bulb temperature and the outdoor dry-bulb temperature difference coefficient are substituted into the preset calculation formula to determine the heating capacity of the air conditioner.

6. The air conditioner according to claim 5, characterized in that: The preset calculation formula includes: Among them, QH is the heating amount, 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.

7. The air conditioner according to claim 1, characterized in that: After obtaining the cooling capacity or heating capacity of the air conditioner, the controller is further configured to: The cooling capacity or heating capacity is sent to a user terminal and / or displayed on a display screen of the air conditioner.

8. A method for calculating the capacity of an air conditioner, characterized in that: include: Obtaining 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 and temperature difference coefficient of the air conditioner; The cooling capacity or heating capacity of the air conditioner is determined 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.

9. The method for calculating the capacity of an air conditioner according to claim 8, characterized in that: 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 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 coefficient and a preset calculation formula, the cooling capacity of the air conditioner is determined, including: When the operation mode is in cooling mode, the actual sensible heat capacity of 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 of cooling, and the actual latent heat capacity of 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; The cooling capacity of the air conditioner is determined according to the actual sensible heat capacity value of refrigeration, the actual latent heat capacity value of refrigeration, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, the outdoor dry-bulb temperature difference coefficient and the preset calculation formula.

10. The method for calculating the capacity of an air conditioner according to claim 9, characterized in that: The cooling capacity of the air conditioner is determined according to the actual sensible heat capacity value of refrigeration, the actual latent heat capacity value of refrigeration, 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 actual sensible heat capacity value of refrigeration and the actual latent heat capacity value of refrigeration; The sum of the actual sensible heat capacity value and the actual latent heat capacity value, the rated outdoor dry-bulb temperature, the outdoor dry-bulb temperature, and the outdoor dry-bulb temperature difference coefficient are substituted into the preset calculation formula to determine the cooling capacity of the air conditioner.

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