Spray Control Method, Device and Electronic Equipment of Air Conditioner

Abstract

The present invention provides a spray control method, device and electronic device for an air conditioner. Among them, the method includes: when the air conditioner is in the cooling mode, determining whether the operating state of the compressor of the air conditioner is a frequency-limited state; where the frequency-limited state includes: a refrigerant-side pressure frequency-limited state, a temperature frequency-limited state and a current frequency-limited state; if so, and the ambient temperature of the air conditioner is greater than or equal to a preset spray start temperature, controlling the spray system to operate at the highest gear; if not, determining an initial gear of the spray system based on the ambient temperature of the air conditioner and the operating frequency of the compressor, and controlling the spray system to operate at the initial gear. In this way, the appropriate operating gear of the spray system can be determined according to the operating state of the compressor, the ambient temperature of the air conditioner and the operating frequency of the compressor, and the spray system can be controlled to operate, which can optimize the heat exchange effect of the outdoor heat exchanger, take into account water and electricity conservation, improve the energy-saving effect, and improve the user experience.

Description

Technical Field

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

[0002] When the air conditioner is cooling in summer, due to the high ambient temperature and poor heat dissipation of the compressor's heat exchanger, the power consumption of the whole machine will be large. In order to reduce the power consumption of the air conditioner in summer and improve the indoor comfort, a spray system can be installed on the air conditioner, and the external heat exchanger can be sprayed and cooled through the spray system, so as to optimize the heat exchange effect of the external heat exchanger and achieve the purpose of reducing power consumption and improving indoor comfort.

[0003] In the related art, the spray system generally uses manual control of the spray switch. However, the above method has poor adaptability in the face of actual complex and changeable working conditions, the heat exchange effect of the heat exchanger is poor, and it cannot take into account water saving and power saving at the same time, and the energy saving effect is poor. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a spray control method, device and electronic device for an air conditioner, so as to optimize the heat exchange effect of the external heat exchanger, take into account water saving and power saving, improve the energy saving effect, and thus improve the user experience.

[0005] In a first aspect, an embodiment of the present invention provides a spray control method for an air conditioner, which is applied to an air conditioner equipped with a spray system. The method includes: when the air conditioner is in the cooling mode, determining whether the operating state of the compressor of the air conditioner is a frequency-limited state; wherein, the frequency-limited state includes: a refrigerant-side pressure frequency-limited state, a temperature frequency-limited state, and a current frequency-limited state; if so, and the ambient temperature of the air conditioner is greater than or equal to a preset spray start temperature, controlling the spray system to operate at the highest gear; wherein, the highest gear is the gear with the largest spray volume per unit time; if not, determining an initial gear of the spray system based on the ambient temperature of the air conditioner and the operating frequency of the compressor, and controlling the spray system to operate at the initial gear.

[0006] In a preferred embodiment of the present application, after the step of determining whether the operating state of the compressor of the air conditioner is a frequency-limited state, the method further includes: if so, and the ambient temperature of the air conditioner is less than the spray start temperature, not operating the spray system.

[0007] In a preferred embodiment of the present application, the step of determining the initial gear of the spray system based on the ambient temperature of the air conditioner and the operating frequency of the compressor includes: determining the ambient temperature of the air conditioner and the operating frequency of the compressor; calculating the ratio of the operating frequency of the compressor to the preset maximum operating frequency of the compressor as the frequency ratio; determining the initial gear of the spray system based on the ambient temperature and the frequency ratio.

[0008] In a preferred embodiment of the present application, a corresponding relationship among the ambient temperature, the frequency ratio, and the operating gear of the spraying system is preset in the above-mentioned air conditioner; the step of determining the initial gear of the spraying system based on the ambient temperature and the frequency ratio includes: determining, based on the corresponding relationship, the operating gear of the spraying system corresponding to the ambient temperature and the frequency ratio as the initial gear of the spraying system.

[0009] In a preferred embodiment of the present application, after the step of calculating the ratio of the operating frequency of the compressor to the maximum operating frequency of the compressor preset in advance as the frequency ratio, the method further includes: if the ambient temperature is less than the spraying start temperature, or the operating frequency is less than the preset spraying start frequency, controlling the spraying system to stop operating.

[0010] In a preferred embodiment of the present application, after the step of operating the spraying system at the initial gear, the method further includes: adjusting the operating gear of the spraying system based on the power of the compressor operation of the air conditioner.

[0011] In a preferred embodiment of the present application, the step of adjusting the operating gear of the spraying system based on the power of the compressor operation of the air conditioner includes: after the spraying system operates at the initial gear for a first time, collecting the first power of the compressor operation of the air conditioner; reducing the operating gear of the spraying system; after the spraying system operates at the reduced operating gear for a second time, collecting the second power of the compressor operation of the air conditioner; if the second power is less than or equal to the first power, determining the operating gear of the spraying system as the reduced operating gear; if the second power is greater than the first power, determining the operating gear of the spraying system as the operating gear before reduction.

[0012] In a preferred embodiment of the present application, after the step of collecting the first power of the compressor operation of the air conditioner, the method further includes: increasing the operating gear of the spraying system; after the spraying system operates at the increased operating gear for a third time, collecting the third power of the compressor operation of the air conditioner; if the third power is less than or equal to the first power, determining the operating gear of the spraying system as the increased operating gear; if the third power is greater than the first power, determining the operating gear of the spraying system as the operating gear before increase.

[0013] In a preferred embodiment of the present application, after the step of determining the operating gear of the spraying system as the reduced operating gear if the second power is less than or equal to the first power, the method further includes: if the reduced operating gear is not the lowest gear, execute the step of reducing the operating gear of the spraying system until the second power is greater than the first power, and determine the operating gear of the spraying system as the operating gear before the reduction for this time; wherein, the lowest gear is the gear with the smallest spraying amount per unit time; after the step of determining the operating gear of the spraying system as the operating gear before the reduction if the second power is greater than the first power, the method further includes: execute the step of increasing the operating gear of the spraying system until the third power is greater than the first power, and determine the operating gear of the spraying system as the operating gear before the increase for this time.

[0014] In a preferred embodiment of the present application, after the step of determining the operating gear of the spraying system as the increased operating gear if the third power is less than or equal to the first power, the method further includes: if the increased operating gear is not the highest gear, execute the step of increasing the operating gear of the spraying system until the third power is greater than the first power, and determine the operating gear of the spraying system as the operating gear before the increase for this time; after the step of determining the operating gear of the spraying system as the operating gear before the increase if the third power is greater than the first power, the method further includes: execute the step of reducing the operating gear of the spraying system until the second power is greater than the first power, and determine the operating gear of the spraying system as the operating gear before the reduction for this time.

[0015] In a preferred embodiment of the present application, after the step of adjusting the operating gear of the spraying system based on the power of the compressor of the air conditioner, the method further includes: determining the ambient temperature of the air conditioner and the operating frequency of the compressor after the adjustment of the operating gear, and calculating the ambient temperature change amount and the operating frequency change amount; if the ambient temperature change amount is greater than a preset first change amount threshold, or the operating frequency change amount is greater than a preset second change amount threshold, execute the step of determining the initial gear of the spraying system based on the ambient temperature of the air conditioner and the operating frequency of the compressor.

[0016] Second aspect, an embodiment of the present invention further provides a spray control device for an air conditioner, which is applied to the air conditioner. The air conditioner is provided with a spray system. The device includes: a frequency limit state determination module, configured to determine whether the operating state of the compressor of the air conditioner is in a frequency limit state when the air conditioner is in the cooling mode; wherein, the frequency limit state includes: a refrigerant side pressure frequency limit state, a temperature frequency limit state, and a current frequency limit state; a highest gear operation module, configured to, if so, and the ambient temperature of the air conditioner is greater than or equal to a preset spray start temperature, control the spray system to operate at the highest gear; wherein, the highest gear is the gear with the largest spray volume per unit time; an initial gear operation module, configured to, if not, determine the initial gear of the spray system based on the ambient temperature of the air conditioner and the operating frequency of the compressor, and control the spray system to operate at the initial gear.

[0017] Third aspect, an embodiment of the present invention further provides an electronic device, including a processor and a memory. The memory stores computer executable instructions that can be executed by the processor. The processor executes the computer executable instructions to implement the above-mentioned spray control method for the air conditioner.

[0018] Fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium. The computer-readable storage medium stores computer executable instructions. When the computer executable instructions are called and executed by a processor, the computer executable instructions cause the processor to implement the above-mentioned spray control method for the air conditioner.

[0019] The embodiments of the present invention bring the following beneficial effects:

[0020] The embodiments of the present invention provide a spray control method, device and electronic device for an air conditioner. When the air conditioner is in the cooling mode, if the operating state of the compressor of the air conditioner is in a frequency limit state, and the ambient temperature of the air conditioner is greater than or equal to a preset spray start temperature, the spray system can be controlled to operate at the highest gear; if the operating state of the compressor of the air conditioner is not in a frequency limit state, the initial gear of the spray system can be determined based on the ambient temperature of the air conditioner and the operating frequency of the compressor, and the spray system can be controlled to operate at the initial gear. In this way, the appropriate operating gear of the spray system can be determined according to the operating state of the compressor, the ambient temperature of the air conditioner and the operating frequency of the compressor, and the spray system can be controlled to operate, which can optimize the heat exchange effect of the external heat exchanger, take into account water and electricity conservation, improve the energy-saving effect, and improve the user experience.

[0021] Other features and advantages of the present disclosure will be described in the following specification, or, some features and advantages can be inferred from the specification or determined without doubt, or can be known by implementing the above technologies of the present disclosure.

[0022] To make the above objects, features, and advantages of the present disclosure more apparent and understandable, the following provides preferred embodiments in conjunction with the accompanying drawings and describes them in detail as follows. Description of the Drawings

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 Schematic diagram of a spray system of an air conditioner provided by an embodiment of the present invention;

[0025] Figure 2 Flowchart of a spray control method for an air conditioner provided by an embodiment of the present invention;

[0026] Figure 3 Flowchart of another spray control method for an air conditioner provided by an embodiment of the present invention;

[0027] Figure 4 Schematic diagram of the correspondence between ambient temperature, frequency ratio, and the operating gear of the spray system provided by an embodiment of the present invention;

[0028] Figure 5 Schematic diagram of an adaptive adjustment method of an air conditioner provided by an embodiment of the present invention;

[0029] Figure 6 Schematic diagram of the structure of a spray control device of an air conditioner provided by an embodiment of the present invention;

[0030] Figure 7 Schematic diagram of the structure of an electronic device provided by an embodiment of the present invention.

[0031] Reference numerals: 1 - spray nozzle; 2 - waterway; 3 - filter; 4 - water pump; 5 - compressor; 6 - ambient temperature sensor; 61 - frequency limit state determination module; 62 - highest gear operation module; 63 - initial gear operation module; 100 - memory; 101 - processor; 102 - bus; 103 - communication interface. Detailed Embodiments

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Currently, when an air conditioner cools in summer, due to high ambient temperature and poor heat dissipation of the compressor heat exchanger, the power consumption of the whole machine during operation is large. To reduce the power consumption of the air conditioner in summer and improve indoor comfort, a spray system can be installed on the air conditioner, and the external heat exchanger can be sprayed and cooled through the spray system, so as to optimize the heat exchange effect of the external heat exchanger and achieve the purpose of reducing power consumption and improving indoor comfort.

[0034] The existing control of the spray system generally adopts the method of manually controlling the spray switch or turning it on or off according to the outdoor ambient temperature. However, in many states, the improvement of the heat exchange effect of the external heat exchanger by turning on the spray in the above two control methods is not obvious, resulting in an insignificant energy-saving effect, low or no spray benefit; after the above two control methods are turned on, the spray control is not adjusted according to the state of the system itself to find a solution that takes into account water and electricity conservation, thus reducing the user experience.

[0035] Based on this, a spray control method, device, and electronic device for an air conditioner provided by the embodiments of the present invention specifically provide a spray control method based on the operating parameters of the air conditioning system. At different outdoor ambient temperatures, the air conditioner is controlled to perform spray control at different operating frequencies, so as to optimize the heat exchange effect of the external heat exchanger and improve the spray benefit under different air conditioner states.

[0036] To facilitate the understanding of this embodiment, a spray control method for an air conditioner disclosed in the embodiments of the present invention will be introduced in detail first.

[0037] Embodiment 1:

[0038] The embodiments of the present invention provide a spray control method for an air conditioner, which is applied to an air conditioner. The air conditioner includes a spray system. Refer to Figure 1 the schematic diagram of a spray system of an air conditioner shown. The spray system of the above air conditioner is arranged on the compressor 5 of the air conditioner. The spray system includes: a spray nozzle 1, a waterway 2, a filter 3, and a water pump 4. An ambient temperature sensor 6 is arranged on the surface of the compressor. When the spray system is turned on, the spray nozzle can spray water mist on the compressor to optimize the heat exchange effect of the external heat exchanger. If the ambient temperature sensor is arranged within the range where the water mist is sprayed, it is very likely that there is a deviation between the ambient temperature detected by the ambient temperature sensor and the actual ambient temperature.

[0039] Based on the above description, refer to Figure 2 the flowchart of a spray control method for an air conditioner as shown. The spray control method for the air conditioner includes the following steps:

[0040] Step S202, when the air conditioner is in the cooling mode, determine whether the operating state of the compressor of the air conditioner is a frequency-limited state.

[0041] Among them, the frequency-limited state includes: the refrigerant-side pressure frequency-limited state, the temperature frequency-limited state, and the current frequency-limited state. The frequency-limited state of the air conditioner is the state where the operating frequency of the compressor needs to be limited. At this time, generally, the operating state of the compressor will be reduced or the operating state of the compressor will be maintained at a lower fixed point. When the compressor of the air conditioner is in the frequency-limited state, the air conditioner generally operates at a high load.

[0042] Step S204, if so, and the ambient temperature of the air conditioner is greater than or equal to a preset spray start temperature, control the spray system to operate at the highest gear.

[0043] If the operating state of the compressor of the air conditioner is a frequency-limited state, the air conditioner generally operates at a high load. At this time, it is necessary to control the spray system to start operating at the highest gear. Among them, the highest gear is the gear with the largest spray volume per unit time. In this embodiment, the highest gear of the spray system is gear 1. As the gear number increases, the spray volume per unit time of the spray system decreases.

[0044] The spray start temperature can be understood as the lowest temperature at which the spray system needs to be started. When the ambient temperature of the air conditioner is greater than or equal to the spray start temperature, it means that the ambient temperature has reached the standard for starting the spray system, and the spray system needs to be started. In addition, since the compressor is in the frequency-limited state, it indicates that the air conditioner is operating at a high load. Therefore, the spray system can be controlled to operate at the highest gear.

[0045] Step S206, if not, determine the initial gear of the spray system based on the ambient temperature of the air conditioner and the operating frequency of the compressor, and control the spray system to operate at the initial gear.

[0046] If the operating state of the compressor of the air conditioner is not a frequency-limited state, it can be considered that the air conditioner is not operating at a high load at this time, and it may not be necessary to control the spray system to start operating at the highest gear. Therefore, at this time, the operating gear (i.e., the initial gear) of the spray system can be determined according to the ambient temperature of the air conditioner and the operating frequency of the compressor, and the spray system can be controlled to operate at the above initial gear.

[0047] Among them, as Figure 1As shown in the figure, an ambient temperature sensor is provided on the surface of the compressor. The ambient temperature of the air conditioner can be collected through the ambient temperature sensor, and the operating frequency of the compressor can be directly read from the controller of the compressor.

[0048] An embodiment of the present invention provides a spray control method for an air conditioner. When the air conditioner is in the cooling mode, if the operating state of the compressor of the air conditioner is a frequency-limited state and the ambient temperature of the air conditioner is greater than or equal to a preset spray-starting temperature, the spray system can be controlled to operate at the highest gear; if the operating state of the compressor of the air conditioner is not a frequency-limited state, the initial gear of the spray system can be determined based on the ambient temperature of the air conditioner and the operating frequency of the compressor, and the spray system can be controlled to operate at the initial gear. In this way, the appropriate operating gear of the spray system can be determined according to the operating state of the compressor, the ambient temperature of the air conditioner, and the operating frequency of the compressor, and the spray system can be controlled to operate, which can optimize the heat exchange effect of the external heat exchanger, take into account water and electricity conservation, improve the energy-saving effect, and improve the user experience.

[0049] Embodiment 2:

[0050] This embodiment provides another spray control method for an air conditioner. This method is implemented on the basis of the above embodiment, as Figure 3 shown in the flowchart of another spray control method for an air conditioner. The spray control method for the air conditioner in this embodiment includes the following steps:

[0051] Step S302, when the air conditioner is in the cooling mode, determine whether the operating state of the compressor of the air conditioner is a frequency-limited state. If so, execute step S304; if not, execute step S310.

[0052] When the air conditioner is in the cooling mode, it can first detect whether the compressor is frequency-limited, that is, determine whether the operating state of the compressor of the air conditioner is a frequency-limited state. Among them, the frequency-limited state refers to the refrigerant-side pressure frequency-limited state, temperature frequency-limited state, and current frequency-limited state during the operation of the air conditioner.

[0053] Step S304, determine whether the ambient temperature of the air conditioner is greater than or equal to a preset spray-starting temperature. If so, execute step S306; if not, execute step S308.

[0054] If the operating state is a frequency-limited state, the ambient temperature T of the air conditioner can be collected, and whether to turn on the spray system can be determined according to the ambient temperature.

[0055] Step S306, control the spray system to operate at the highest gear.

[0056] If the operating state is the frequency limit state and the ambient temperature T of the air conditioner is greater than or equal to the spraying start temperature Ts, it is considered that the spraying system needs to be started at this time, and the spraying system is operated at the highest gear (originally the reasonably summarized first gear) to quickly improve the heat exchange effect of the compressor heat exchanger.

[0057] Step S308, do not operate the spraying system.

[0058] If the operating state is the frequency limit state, but the ambient temperature T of the air conditioner is less than the spraying start temperature Ts, it means that although the air conditioner is operating at high load at this time, the ambient temperature is not high enough to reach the standard for starting the spraying system of the air conditioner. Therefore, the spraying system does not need to be started at this time, and the spraying system can be controlled to stop operating.

[0059] Step S310, determine the initial gear of the spraying system based on the ambient temperature of the air conditioner and the operating frequency of the compressor, and control the spraying system to operate at the initial gear.

[0060] If the operating state is not the frequency limit state, it is not necessarily necessary to operate the spraying system at the highest gear at this time. Therefore, in this embodiment, the initial gear of the spraying system operation can be determined according to the ambient temperature of the air conditioner and the operating frequency of the compressor. For example: determine the ambient temperature of the air conditioner and the operating frequency of the compressor; calculate the ratio of the operating frequency of the compressor to the maximum operating frequency of the compressor preset as the frequency ratio; determine the initial gear of the spraying system based on the ambient temperature and the frequency ratio.

[0061] When the air conditioner is operating in the cooling mode, the ambient temperature T outside can be detected by the ambient temperature sensor. The operating frequency f of the compressor can also be obtained, and the frequency ratio A = f / f max . Where f max represents the maximum allowable frequency of the refrigeration compressor.

[0062] In this embodiment, the air conditioner is pre-set with the corresponding relationship between the ambient temperature, the frequency ratio, and the operating gear of the spraying system. The operating gear of the spraying system corresponding to the ambient temperature and the frequency ratio can be determined based on the corresponding relationship as the initial gear of the spraying system.

[0063] See Figure 4A schematic diagram showing the corresponding relationship among the ambient temperature, frequency ratio, and the operating gear of the spray system. The operating gear of the spray system can be determined based on the ambient temperature and frequency ratio. Among them, spray gear 1 is continuous spraying, spray gear 2 is spraying for A1 seconds and then pausing for B1 seconds, spray gear 3 is spraying for A2 seconds and then pausing for B2 seconds, spray gear 4 is spraying for A3 seconds and then pausing for B3 seconds... spray gear n is spraying for An seconds and then pausing for Bn seconds. Among them, from gear 1 to gear n, the spraying amount per unit time gradually decreases, that is: An / (An + Bn) <... < A4 / (A4 + B4) < A3 / (A3 + B3) < A2 / (A2 + B2) < A1 / (A1 + B1).

[0064] For example, n can be 4. Spray gear 1 can be continuous spraying, spray gear 2 can be spraying for 3 seconds and then pausing for 6 seconds, spray gear 3 can be spraying for 3 seconds and then pausing for 9 seconds, and spray gear 4 can be spraying for 3 seconds and then pausing for 15 seconds.

[0065] Therefore, the operating gear of the spray system can be determined based on the ambient temperature, frequency ratio, and Figure 4 the corresponding relationship shown. Among them, if the ambient temperature is less than the starting spray temperature, or the operating frequency is less than the preset starting spray frequency, the spray system is controlled to stop operating. As Figure 4 shown, if the ambient temperature T < Ts or the frequency ratio A < An, the spray is not turned on.

[0066] When T ≥ Ts and the frequency ratio A ≥ An, the operating gear of the spray system can be determined according to Figure 4 the corresponding relationship shown. Among them, when the point (A, T) falls on the regional dividing line, the gear corresponding to the area above the dividing line can be used as the operating gear of the spray system.

[0067] In addition, the spray gear of this embodiment can also be adjusted adaptively. After determining the initial gear of the spray system, in order to further optimize the spray method and reduce the spray water consumption while reducing the same operating power, the adaptive adjustment can be carried out in the following way: adjust the operating gear of the spray system based on the power of the compressor operation of the air conditioner. Among them, the adaptive adjustment of this embodiment can be divided into two ways: reducing the gear and increasing the gear.

[0068] Specifically, the way of reducing the gear can be: after the spray system operates at the reduced operating gear for the second time, collect the second power of the compressor operation of the air conditioner; if the second power is less than or equal to the first power, determine the operating gear of the spray system as the reduced operating gear; if the second power is greater than the first power, determine the operating gear of the spray system as the operating gear before reduction.

[0069] When the gear is reduced, if the power decreases or remains unchanged (i.e., the second power is less than or equal to the first power), a lower gear (i.e., the reduced operating gear) can be adopted; if the power increases (i.e., the second power is greater than the first power), a higher gear (i.e., the operating gear before reduction) can be adopted.

[0070] Specifically, the way to increase the gear can be: increase the operating gear of the spray system; after the spray system operates at the increased operating gear for the third time, collect the third power of the compressor operation of the air conditioner; if the third power is less than or equal to the first power, determine that the operating gear of the spray system is the increased operating gear; if the third power is greater than the first power, determine that the operating gear of the spray system is the operating gear before increase.

[0071] When the gear is increased, if the power decreases or remains unchanged (i.e., the third power is less than or equal to the first power), a higher gear (i.e., the increased operating gear) can be adopted; if the power increases (i.e., the third power is greater than the first power), a lower gear (i.e., the operating gear before increase) can be adopted.

[0072] For example, if the initial gear is the highest gear, the way of reducing the gear can be adopted; if the initial gear is other gears except the highest gear, the way of increasing the gear can be adopted.

[0073] The purpose of the adaptive adjustment in this embodiment is to find the optimal spray method. For example, when the spray is turned on at gear 1 (the highest gear), the way of reducing the gear is adopted, that is, the gear can be increased by 1 for optimization; when the spray is turned on at the intermediate gear n (other gears except the highest gear), the way of increasing the gear is adopted, that is, the gear is reduced by 1 for optimization.

[0074] Among them, the first time can be 10 minutes, and the second time and the third time can also be 10 minutes. Specifically, reference can be made to Figure 5 the schematic diagram of an air conditioner adaptive adjustment method shown. After controlling the spray system to operate at gear n for 10 minutes, the first power of the compressor operation of the air conditioner can be continuously collected for 5 minutes to determine whether the operating gear n is equal to 1.

[0075] As Figure 5 shown, if n is equal to 1, the spray system can be controlled to operate at gear 2 for 10 minutes, and then the second power of the compressor operation of the air conditioner can be continuously collected for 5 minutes to determine whether the second power is greater than the first power. If not, determine that the operating gear of the spray system is gear 2; if so, determine that the operating gear of the spray system is gear 1.

[0076] As Figure 5As shown, if n is not equal to 1, the spray system can be controlled to operate at gear n - 1 for 10 minutes, and then the third power of the compressor operation of the air conditioner can be continuously collected for 5 minutes to determine whether the third power is greater than the first power. If not, the operating gear of the spray system is determined to be gear n - 1; if so, the operating gear of the spray system is determined to be gear n.

[0077] In addition, the above adaptive method can be optimized in this embodiment. For example:

[0078] (1) After the step of determining that the operating gear of the spray system is the reduced operating gear if the second power is less than or equal to the first power, the method further includes: if the reduced operating gear is not the lowest gear, execute the step of reducing the operating gear of the spray system until the second power is greater than the first power, and determine that the operating gear of the spray system is the operating gear before the reduction in this instance; where the lowest gear is the gear with the smallest spray volume per unit time.

[0079] When using the method of reducing the gear, if the power drops or remains unchanged and the lowest gear has not been reached, the gear can be continuously reduced until the power rises, so as to determine the operating gear. If the lowest gear is reached, the lowest gear can be used as the operating gear.

[0080] (2) After the step of determining that the operating gear of the spray system is the operating gear before the reduction if the second power is greater than the first power, the method further includes: execute the step of increasing the operating gear of the spray system until the third power is greater than the first power, and determine that the operating gear of the spray system is the operating gear before the increase in this instance.

[0081] When using the method of reducing the gear, if the power rises, the gear can be increased until the power drops, so as to determine the operating gear.

[0082] (3) After the step of determining that the operating gear of the spray system is the increased operating gear if the third power is less than or equal to the first power, the method further includes: if the increased operating gear is not the highest gear, execute the step of increasing the operating gear of the spray system until the third power is greater than the first power, and determine that the operating gear of the spray system is the operating gear before the increase in this instance.

[0083] When using the method of increasing the gear, if the power drops or remains unchanged and the highest gear has not been reached, the gear can be continuously increased until the power rises, so as to determine the operating gear. If the highest gear is reached, the highest gear can be used as the operating gear.

[0084] (4) After the step of determining that the operating gear of the spraying system is the operating gear before improvement if the third power is greater than the first power, the method further includes: performing the step of reducing the operating gear of the spraying system until the second power is greater than the first power, and determining that the operating gear of the spraying system is the operating gear before the current reduction.

[0085] When adopting the method of increasing the gear, if the power rises, the gear can be reduced until the power drops, so as to determine the operating gear.

[0086] For example, when the initial gear of the spraying system is the highest gear of 1st gear, the gear can be increased upward (increased to 2nd gear) to find the optimal spraying gear. If it is determined that the 2nd gear is better than the 1st gear (that is, more water-saving under the same power saving condition), the gear can be increased upward to 3rd gear for optimization, and so on until the optimal gear is found. The main purpose of increasing the spraying gear is to find the spraying method with the least current water consumption under the same power saving amount.

[0087] When the initial gear of the spraying system is the intermediate gear n, the gear is reduced downward (reduced by 1 gear) to find the optimum. If it is determined that the (n - 1)th gear is better than the nth gear (that is, more power-saving), the gear can be continuously reduced downward for optimization until the optimum; if it is determined that there is no improvement in the (n - 1)th gear compared with the nth gear, the gear can be increased (increased by 1 gear) on the basis of the nth gear, and then the operating effect is determined until the optimal spraying method is found. The main purpose of increasing the spraying gear is to find the spraying method with the least current water consumption under the same power saving amount; the purpose of reducing the gear is to achieve more power saving of the air conditioner by increasing the spraying amount.

[0088] In addition, after adjusting the operating gear, the ambient temperature of the air conditioner and the operating frequency of the compressor after the adjustment of the operating gear can be determined, and the ambient temperature change amount and the operating frequency change amount can be calculated; if the ambient temperature change amount is greater than a preset first change amount threshold, or the operating frequency change amount is greater than a preset second change amount threshold, perform the step of determining the initial gear of the spraying system based on the ambient temperature of the air conditioner and the operating frequency of the compressor.

[0089] If the ambient temperature change amount is greater than a preset first change amount threshold or the operating frequency change amount is greater than a preset second change amount threshold, it can be considered that the adjustment of the operating gear has caused a change in the spraying effect. At this time, in order to ensure the same spraying effect as the previous gear, it is necessary to re-determine the initial gear of the spraying system.

[0090] The above method provided by the embodiments of the present invention can combine the ambient temperature at which the compressor operates and the operating frequency of the compressor to control the operating gear of the spraying system. When the air conditioner is in the frequency limit state (current frequency limit, temperature frequency limit, pressure frequency limit), the air conditioner is operating at high load. The spraying system can be first turned on at the highest gear to optimize the heat exchange effect of the compressor heat exchanger and reduce the operating power. When the air conditioner is not in the frequency limit state, when the ambient temperature is higher than the spraying start temperature and the ratio of the compressor frequency to the maximum allowable operating frequency value exceeds a certain value, it can be considered that the air conditioner load is relatively high, and the spraying system is turned on. After the spraying system is turned on, the operating gear of the spraying system is adjusted according to the air conditioner system parameters to determine the spraying method that takes into account energy saving and water saving for this air conditioner state.

[0091] Embodiment 3:

[0092] Corresponding to the above method embodiment, the embodiments of the present invention provide a spraying control device for an air conditioner, which is applied to an air conditioner. The air conditioner includes a spraying system. Refer to Figure 6 the structural schematic diagram of a spraying control device for an air conditioner shown in

[0093] A frequency limit state determination module 61, configured to determine whether the operating state of the compressor of the air conditioner is in a frequency limit state when the air conditioner is in the cooling mode; wherein, the frequency limit state includes: a refrigerant side pressure frequency limit state, a temperature frequency limit state, and a current frequency limit state;

[0094] A highest gear operation module 62, configured to, if so, and the ambient temperature of the air conditioner is greater than or equal to a preset spraying start temperature, control the spraying system to operate at the highest gear; wherein, the highest gear is the gear with the largest spraying amount per unit time;

[0095] An initial gear operation module 63, configured to, if not, determine the initial gear of the spraying system based on the ambient temperature of the air conditioner and the operating frequency of the compressor, and control the spraying system to operate at the initial gear.

[0096] The embodiments of the present invention provide a spraying control device for an air conditioner. When the air conditioner is in the cooling mode, if the operating state of the compressor of the air conditioner is in a frequency limit state, and the ambient temperature of the air conditioner is greater than or equal to a preset spraying start temperature, the spraying system can be controlled to operate at the highest gear; if the operating state of the compressor of the air conditioner is not in a frequency limit state, the initial gear of the spraying system can be determined based on the ambient temperature of the air conditioner and the operating frequency of the compressor, and the spraying system can be controlled to operate at the initial gear. In this way, the appropriate operating gear of the spraying system can be determined according to the operating state of the compressor, the ambient temperature of the air conditioner, and the operating frequency of the compressor, and the spraying system can be controlled to operate, which can optimize the heat exchange effect of the external heat exchanger, take into account water and electricity saving, improve the energy saving effect, and improve the user experience.

[0097] The above device further includes: a spray system stop module, configured to, if so, and when the ambient temperature of the air conditioner is lower than the spray start temperature, not operate the spray system.

[0098] The above initial gear operation module is configured to determine the ambient temperature of the air conditioner and the operating frequency of the compressor; calculate the ratio of the operating frequency of the compressor to the maximum operating frequency of the compressor preset as the frequency ratio; and determine the initial gear of the spray system based on the ambient temperature and the frequency ratio.

[0099] The above air conditioner is pre-set with the corresponding relationship between the ambient temperature, the frequency ratio, and the operating gear of the spray system; the above initial gear operation module is configured to determine, based on the corresponding relationship, the operating gear of the spray system corresponding to the ambient temperature and the frequency ratio as the initial gear of the spray system.

[0100] The above initial gear operation module is further configured to, if the ambient temperature is lower than the spray start temperature, or the operating frequency is lower than the preset spray start frequency, control the spray system to stop operating.

[0101] The above device further includes: an operating gear adjustment module, configured to adjust the operating gear of the spray system based on the power of the compressor of the air conditioner during operation.

[0102] The above operating gear adjustment module is configured to, after the spray system operates at the initial gear for a first time, collect the first power of the compressor of the air conditioner during operation; lower the operating gear of the spray system; after the spray system operates at the lowered operating gear for a second time, collect the second power of the compressor of the air conditioner during operation; if the second power is less than or equal to the first power, determine the operating gear of the spray system as the lowered operating gear; if the second power is greater than the first power, determine the operating gear of the spray system as the operating gear before lowering.

[0103] The above operating gear adjustment module is further configured to raise the operating gear of the spray system; after the spray system operates at the raised operating gear for a third time, collect the third power of the compressor of the air conditioner during operation; if the third power is less than or equal to the first power, determine the operating gear of the spray system as the raised operating gear; if the third power is greater than the first power, determine the operating gear of the spray system as the operating gear before raising.

[0104] The above-mentioned operation gear adjustment module is further configured to, if the reduced operation gear is not the lowest gear, perform the step of reducing the operation gear of the spray system until the second power is greater than the first power, and determine that the operation gear of the spray system is the operation gear before the current reduction; wherein, the lowest gear is the gear with the smallest spray amount per unit time; the above-mentioned operation gear adjustment module is further configured to perform the step of increasing the operation gear of the spray system until the third power is greater than the first power, and determine that the operation gear of the spray system is the operation gear before the current increase.

[0105] The above-mentioned operation gear adjustment module is further configured to, if the reduced operation gear is not the highest gear, perform the step of increasing the operation gear of the spray system until the third power is greater than the first power, and determine that the operation gear of the spray system is the operation gear before the current increase; the above-mentioned operation gear adjustment module is further configured to perform the step of reducing the operation gear of the spray system until the second power is greater than the first power, and determine that the operation gear of the spray system is the operation gear before the current reduction.

[0106] The above-mentioned operation gear adjustment module is further configured to determine the ambient temperature of the air conditioner and the operating frequency of the compressor after the operation gear is adjusted, and calculate the ambient temperature change amount and the operating frequency change amount; if the ambient temperature change amount is greater than a preset first change amount threshold, or the operating frequency change amount is greater than a preset second change amount threshold, perform the step of determining the initial gear of the spray system based on the ambient temperature of the air conditioner and the operating frequency of the compressor.

[0107] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process of the above-described spray control device of the air conditioner can refer to the corresponding process in the embodiment of the above-described spray control method of the air conditioner, and will not be elaborated here.

[0108] Embodiment 4:

[0109] The embodiment of the present invention further provides an electronic device for running the above-mentioned spray control method of the air conditioner; see Figure 7 The structural schematic diagram of an electronic device shown, the electronic device includes a memory 100 and a processor 101, wherein the memory 100 is used to store one or more computer instructions, and the one or more computer instructions are executed by the processor 101 to implement the above-mentioned spray control method of the air conditioner.

[0110] Further, Figure 7 The shown electronic device further includes a bus 102 and a communication interface 103, and the processor 101, the communication interface 103 and the memory 100 are connected through the bus 102.

[0111] Among them, the memory 100 may include high-speed random access memory (RAM), and may also include non-volatile memory, such as at least one disk memory. The communication connection between this system network element and at least one other network element is realized through at least one communication interface 103 (which can be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. can be used. The bus 102 can be an ISA bus, a PCI bus, an EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of easy representation, Figure 7 only a bidirectional arrow is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0112] The processor 101 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit in the hardware of the processor 101 or the instructions in the form of software. The above-mentioned processor 101 may be a general-purpose processor, including a central processing unit (CPU for short), a network processor (NP for short), etc.; it may also be a digital signal processor (DSP for short), an application specific integrated circuit (ASIC for short), a field programmable gate array (FPGA for short), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present invention can be directly embodied as being executed and completed by the hardware decoding processor, or executed and completed by the combination of the hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, register, etc. This storage medium is located in the memory 100, and the processor 101 reads the information in the memory 100 and combines its hardware to complete the steps of the method in the foregoing embodiments.

[0113] An embodiment of the present invention also provides a computer-readable storage medium storing computer-executable instructions. When the computer-executable instructions are called and executed by a processor, the computer-executable instructions cause the processor to implement the above-described spray control method of the air conditioner. For specific implementation, reference may be made to the method embodiment, which will not be elaborated herein.

[0114] A computer program product of a spray control method, device, and electronic device of an air conditioner provided by an embodiment of the present invention includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the method in the foregoing method embodiment. For specific implementation, reference may be made to the method embodiment, which will not be elaborated herein.

[0115] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described system and / or device can refer to the corresponding processes in the foregoing method embodiment, which will not be elaborated herein.

[0116] In addition, in the description of the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0117] If the above functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or a part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs that can store program code.

[0118] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0119] Finally, it should be noted that the above-described embodiments are only specific embodiments of the present invention, which are used to illustrate the technical solutions of the present invention, rather than limiting them. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions recorded in the foregoing embodiments or can easily conceive of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes, or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention and should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A spray control method for an air conditioner, characterized in that Applied to an air conditioner, the air conditioner is provided with a spraying system, and the method includes: When the air conditioner is in the cooling mode, determine whether the operating state of the compressor of the air conditioner is a frequency-limited state; wherein, the frequency-limited state includes: a refrigerant-side pressure frequency-limited state, a temperature frequency-limited state, and a current frequency-limited state; If so, and the ambient temperature of the air conditioner is greater than or equal to a preset spraying start temperature, control the spraying system to operate at the highest gear; wherein, the highest gear is the gear with the largest spraying amount per unit time; If not, determine the initial gear of the spraying system based on the ambient temperature of the air conditioner and the operating frequency of the compressor, and control the spraying system to operate at the initial gear; After the step of controlling the spraying system to operate at the initial gear, the method further includes: adjusting the operating gear of the spraying system based on the power of the compressor operation of the air conditioner; The step of adjusting the operating gear of the spraying system based on the power of the compressor operation of the air conditioner includes: after the spraying system operates at the initial gear for a first time, collect the first power of the compressor operation of the air conditioner; if the initial gear is the highest gear, reduce the operating gear of the spraying system; after the spraying system operates at the reduced operating gear for a second time, collect the second power of the compressor operation of the air conditioner; if the second power is less than or equal to the first power, determine that the operating gear of the spraying system is the reduced operating gear; if the second power is greater than the first power, determine that the operating gear of the spraying system is the operating gear before reduction; The step of adjusting the operating gear of the spraying system based on the power of the compressor operation of the air conditioner further includes: after the spraying system operates at the initial gear for a first time, collect the first power of the compressor operation of the air conditioner; if the initial gear is other gears except the highest gear, increase the operating gear of the spraying system; after the spraying system operates at the increased operating gear for a third time, collect the third power of the compressor operation of the air conditioner; if the third power is less than or equal to the first power, determine that the operating gear of the spraying system is the increased operating gear; if the third power is greater than the first power, determine that the operating gear of the spraying system is the operating gear before increase.

2. The method according to claim 1, wherein After the step of determining whether the operating state of the compressor of the air conditioner is a frequency-limited state, the method further includes: If so, and the ambient temperature of the air conditioner is less than the spraying start temperature, do not operate the spraying system.

3. The method according to claim 1, characterized in that The step of determining the initial gear of the spraying system based on the ambient temperature of the air conditioner and the operating frequency of the compressor includes: Determine the ambient temperature of the air conditioner and the operating frequency of the compressor; Calculate the ratio of the operating frequency of the compressor and the preset maximum operating frequency of the compressor as the frequency ratio; Determine the initial gear of the spraying system based on the ambient temperature and the frequency ratio.

4. The method according to claim 3, characterized in that, The air conditioner is pre-set with the corresponding relationship among the ambient temperature, the frequency ratio, and the operating gear of the spraying system; the step of determining the initial gear of the spraying system based on the ambient temperature and the frequency ratio includes: Determining, based on the corresponding relationship, the operating gear of the spraying system corresponding to the ambient temperature and the frequency ratio as the initial gear of the spraying system.

5. The method according to claim 3, wherein After the step of calculating the ratio of the operating frequency of the compressor to the maximum operating frequency of the compressor preset as the frequency ratio, the method further includes: If the ambient temperature is less than the spraying start temperature, or the operating frequency is less than the preset spraying start frequency, controlling the spraying system to stop operating.

6. The method according to claim 1, wherein After the step of determining, if the second power is less than or equal to the first power, the operating gear of the spraying system as the reduced operating gear, the method further includes: If the reduced operating gear is not the lowest gear, performing the step of reducing the operating gear of the spraying system until the second power is greater than the first power, and determining the operating gear of the spraying system as the operating gear before the reduction for this time; wherein, the lowest gear is the gear with the smallest spraying amount per unit time. After the step of determining, if the second power is greater than the first power, the operating gear of the spraying system as the operating gear before the reduction, the method further includes: Performing the step of increasing the operating gear of the spraying system until the third power is greater than the first power, and determining the operating gear of the spraying system as the operating gear before the increase for this time.

7. The method according to claim 1, wherein After the step of determining, if the third power is less than or equal to the first power, the operating gear of the spraying system as the increased operating gear, the method further includes: If the reduced operating gear is not the highest gear, performing the step of increasing the operating gear of the spraying system until the third power is greater than the first power, and determining the operating gear of the spraying system as the operating gear before the increase for this time. After the step of determining, if the third power is greater than the first power, the operating gear of the spraying system as the operating gear before the increase, the method further includes: Performing the step of reducing the operating gear of the spraying system until the second power is greater than the first power, and determining the operating gear of the spraying system as the operating gear before the reduction for this time.

8. The method according to claim 1, characterized in that, After the step of adjusting the operating gear of the spraying system based on the power of the compressor operation of the air conditioner, the method further includes: Determining the ambient temperature of the air conditioner and the operating frequency of the compressor after the operating gear is adjusted, and calculating the ambient temperature change amount and the operating frequency change amount. If the ambient temperature change amount is greater than the preset first change amount threshold, or the operating frequency change amount is greater than the preset second change amount threshold, performing the step of determining the initial gear of the spraying system based on the ambient temperature of the air conditioner and the operating frequency of the compressor.

9. A spray control device for an air conditioner, characterized in that, Applied to an air conditioner, the air conditioner is provided with a spraying system, and the device includes: A frequency limit state determination module, configured to determine whether the operating state of the compressor of the air conditioner is in a frequency limit state when the air conditioner is in a cooling mode; wherein, the frequency limit state includes: a refrigerant side pressure frequency limit state, a temperature frequency limit state, and a current frequency limit state; A highest gear operation module, configured to, if so, and the ambient temperature of the air conditioner is greater than or equal to a preset spraying start temperature, control the spraying system to operate at the highest gear; wherein, the highest gear is the gear with the largest spraying amount per unit time; An initial gear operation module, configured to, if not, determine the initial gear of the spraying system based on the ambient temperature of the air conditioner and the operating frequency of the compressor, and control the spraying system to operate at the initial gear; The above device further includes: an operating gear adjustment module, configured to adjust the operating gear of the spraying system based on the power of the compressor operation of the air conditioner; The operating gear adjustment module is configured to, after the spraying system operates at the initial gear for a first time, collect the first power of the compressor operation of the air conditioner; if the initial gear is the highest gear, reduce the operating gear of the spraying system; after the spraying system operates at the reduced operating gear for a second time, collect the second power of the compressor operation of the air conditioner; if the second power is less than or equal to the first power, determine that the operating gear of the spraying system is the reduced operating gear; if the second power is greater than the first power, determine that the operating gear of the spraying system is the operating gear before reduction; The operating gear adjustment module is further configured to, after the spraying system operates at the initial gear for a first time, collect the first power of the compressor operation of the air conditioner; if the initial gear is other gears except the highest gear, increase the operating gear of the spraying system; after the spraying system operates at the increased operating gear for a third time, collect the third power of the compressor operation of the air conditioner; if the third power is less than or equal to the first power, determine that the operating gear of the spraying system is the increased operating gear; if the third power is greater than the first power, determine that the operating gear of the spraying system is the operating gear before increase.

10. An electronic device, characterized in that, It includes a processor and a memory, the memory stores computer executable instructions that can be executed by the processor, and the processor executes the computer executable instructions to implement the spraying control method of the air conditioner according to any one of claims 1 to 8.

11. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer executable instructions, and when the computer executable instructions are called and executed by the processor, the computer executable instructions cause the processor to implement the spraying control method of the air conditioner according to any one of claims 1 to 8.

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