Control method and equipment of air conditioner and storage medium

Abstract

The invention discloses a control method and equipment of an air conditioner and a storage medium, and relates to the technical field of heat exchange equipment control, the control method of the air conditioner comprises the steps that the minimum rotating speed and the maximum rotating speed are determined according to the expected rotating speed of a draught fan, and the speed increasing running time of the speed increasing stage and the speed reducing running time of the speed reducing stage are determined; and control parameters of the fan are adjusted based on the minimum rotating speed, the speed-up running time, the maximum rotating speed and the speed-down running time. The technical problem that the heat exchange efficiency of the heat exchanger is limited due to the fact that airflow forms a flowing boundary layer on the surfaces of the fins in the prior art is solved, and the technical effect that the heat resistance of the boundary layer is reduced, and the heat exchange efficiency of the air conditioner is improved is achieved.

Description

Technical Field

[0001] This application relates to the field of heat exchange equipment control technology, and in particular to a control method, device and storage medium for an air conditioner. Background Technology

[0002] Due to the viscosity of air, the air in contact with the surface of an object adheres to the surface, which reduces the speed of the air in the layer near the surface. This air layer is called the boundary layer.

[0003] In related technologies, after the air conditioner has stabilized, the fans of the indoor and outdoor units maintain a constant speed, and the air volume or velocity entering the evaporator and condenser remains constant. Under constant air velocity, a flow boundary layer will form on the fin surface of the evaporator and condenser. The heat transfer resistance of the flow boundary layer is relatively large, which will limit the heat exchange efficiency of the evaporator and condenser. Summary of the Invention

[0004] The main objective of this application is to provide a control method, device, and storage medium for an air conditioner, which aims to solve the technical problem of airflow forming a flow boundary layer on the fin surface, thereby limiting the heat exchange efficiency of the heat exchanger.

[0005] To achieve the above objectives, this application provides a control method for an air conditioner, the control method comprising:

[0006] The minimum and maximum speeds are determined based on the expected speed of the wind turbine, as well as the acceleration and deceleration times during the acceleration and deceleration phases.

[0007] The control parameters of the fan are adjusted based on the minimum speed, the acceleration time, the maximum speed, and the deceleration time.

[0008] In one embodiment, the step of determining the minimum and maximum speeds based on the desired speed of the wind turbine includes:

[0009] Obtain the preset speed difference or speed ratio;

[0010] The minimum speed and the maximum speed are determined based on the speed difference and the desired speed, or based on the ratio of the difference and the desired speed.

[0011] In one embodiment, the period from the minimum speed to the maximum speed is the acceleration phase, and the period from the maximum speed to the minimum speed is the deceleration phase. The step of determining the acceleration operation time of the acceleration phase and the deceleration operation time of the deceleration phase includes:

[0012] Determine the speed difference between the minimum speed and the maximum speed;

[0013] The acceleration time and deceleration time are determined based on the speed difference and the fan speed change acceleration.

[0014] In one embodiment, after the step of determining the speed difference between the minimum speed and the maximum speed, the method includes:

[0015] Based on the aforementioned speed difference and the fan speed change acceleration, determine the acceleration time and / or deceleration time;

[0016] Determine the time ratio between the acceleration phase and the deceleration phase;

[0017] The acceleration time and the deceleration time are determined based on the acceleration time and / or deceleration time, and the time ratio.

[0018] In one embodiment, after the step of determining the acceleration operation time and the deceleration operation time, the process includes:

[0019] Obtain the adjustment frequency for switching between the acceleration phase and the deceleration phase;

[0020] The acceleration running time and the deceleration running time are updated according to the adjustment frequency.

[0021] In one embodiment, the step of adjusting the control parameters of the fan based on the minimum rotational speed, the acceleration time, the maximum rotational speed, and the deceleration time includes:

[0022] The acceleration control parameters and deceleration control parameters are determined based on the minimum speed, the acceleration operation time, the maximum speed, and the deceleration operation time.

[0023] The control parameters of the fan are adjusted according to the speed-up or speed-down control parameters, depending on whether the fan is currently in the speed-up or speed-down phase.

[0024] In one embodiment, the step of determining the acceleration control parameters and deceleration control parameters based on the minimum rotational speed, the acceleration operation time, the maximum rotational speed, and the deceleration operation time includes:

[0025] The rotational speed amplitude is determined based on the minimum rotational speed and the maximum rotational speed.

[0026] The acceleration control parameters are determined based on the speed amplitude and the acceleration operation time, and the deceleration control parameters are determined based on the speed amplitude and the deceleration operation time.

[0027] In one embodiment, after the step of adjusting the control parameters of the wind turbine according to the speed-up control parameters or the speed-down control parameters based on the current speed-up phase or the speed-down phase of the wind turbine, the method includes:

[0028] Obtain the air conditioner's setting parameters and operating parameters;

[0029] If the operating parameters do not conform to the target operating parameters corresponding to the set parameters, the target rotational speed is updated according to the target operating parameters.

[0030] The steps of determining the minimum and maximum speeds are performed based on the time-averaged target speed.

[0031] In addition, to achieve the above objectives, this application also provides a control device for an air conditioner, the control device for the air conditioner comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the control method for the air conditioner as described above.

[0032] In addition, to achieve the above objectives, this application also provides a storage medium, which is a computer-readable storage medium, on which a program for implementing a control method for an air conditioner is stored, and the program for implementing the control method for an air conditioner is executed by a processor to implement the steps of the control method for an air conditioner as described above.

[0033] This application provides a control method for an air conditioner. The method determines the minimum and maximum speeds of the fan, and determines the acceleration and deceleration times during the acceleration and deceleration phases. Based on the minimum speed, the acceleration time, the maximum speed, and the deceleration time, the control parameters of the fan are adjusted. This solves the technical problem in related technologies where airflow forms a flow boundary layer on the fin surface, thus limiting the heat exchange efficiency of the heat exchanger. It achieves the technical effect of reducing boundary layer thermal resistance and thereby improving the heat exchange efficiency of the air conditioner.

[0034] In summary, this application employs a fluctuating wind speed as an improvement scheme. Under fluctuating wind speed, the periodic fluctuations in wind speed can increase the acceleration within the boundary layer, thereby reducing the time-averaged boundary layer thickness, achieving the effect of reducing boundary layer thermal resistance and improving heat transfer efficiency. Attached Figure Description

[0035] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a flowchart illustrating an embodiment of the control method for an air conditioner according to this application.

[0038] Figure 2 This is a flowchart illustrating Embodiment 3 of the control method for the air conditioner of this application;

[0039] Figure 3 This is a schematic diagram of the speed fluctuation corresponding to the second adjustment frequency in Embodiment 5 of the control method for the air conditioner of this application;

[0040] Figure 4 This is a schematic diagram of the speed fluctuation corresponding to the first adjustment frequency in Embodiment 5 of the control method for the air conditioner of this application;

[0041] Figure 5 This is a schematic diagram of the speed fluctuation corresponding to the third adjustment frequency in Embodiment 5 of the control method for the air conditioner of this application;

[0042] Figure 6 This is a schematic diagram of the fin boundary layer at different wind speeds in Embodiment 6 of the control method for the air conditioner of this application;

[0043] Figure 7 This is a schematic diagram of the hardware structure of the control device embodiment of the air conditioner of this application.

[0044] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0045] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0046] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0047] The main solution of this application is to determine the minimum speed and maximum speed of the fan according to the desired speed of the fan, and to determine the speed-up operation time of the speed-up phase and the speed-down operation time of the speed-down phase; and to adjust the control parameters of the fan based on the minimum speed, the speed-up operation time, the maximum speed and the speed-down operation time.

[0048] Currently, after the air conditioning system is running stably, the fans of the indoor and outdoor units maintain a constant speed. The air volume or air velocity entering the evaporator and condenser is constant. Under constant air velocity, a flow boundary layer will form on the surface of the evaporator and condenser fins. The presence of the flow boundary layer will create a large heat transfer resistance, which will limit the heat exchange efficiency of the evaporator and condenser.

[0049] This application employs a fluctuating wind speed as an improvement scheme. Under fluctuating wind speed, the periodic fluctuation of wind speed can increase the acceleration within the boundary layer, thereby reducing the time-averaged boundary layer thickness, achieving the effect of reducing boundary layer thermal resistance and improving heat transfer efficiency.

[0050] It should be noted that the executing entity in this embodiment can be an air conditioner, or a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or a control device for an air conditioner capable of performing the above functions. This embodiment does not specifically limit the specific implementation. The following uses an air conditioner as the executing entity to describe this embodiment and the following embodiments.

[0051] Based on this, Embodiment 1 of this application proposes a control method for an air conditioner, please refer to... Figure 1 The control method for the air conditioner includes:

[0052] Step S110: Determine the minimum speed and maximum speed based on the desired speed of the fan, and determine the speed-up operation time during the speed-up phase and the speed-down operation time during the speed-down phase.

[0053] It should be noted that both the indoor and outdoor units of the air conditioner have fans. These fans drive airflow through the indoor and outdoor heat exchangers. In other words, the fan is a key component in the air conditioning system responsible for airflow and heat exchange. It primarily drives indoor air into the air conditioner for cooling or heating and then returns the treated air to the room to regulate the temperature. The minimum speed is the minimum permissible speed of the fan in this embodiment, and the maximum speed is the maximum permissible speed of the fan in this embodiment.

[0054] In this embodiment, the desired constant fan speed for a future operating period is used as the start-up condition. The operating time is not specifically limited and includes, but is not limited to, any value of 5 minutes or longer. The desired constant fan speed is determined by at least one condition, including, but not limited to, the following scenarios: Constant airflow control: When the air conditioning system uses constant airflow control technology, the fan speed remains constant. By controlling the fan speed to maintain a constant airflow output, airflow stability can be maintained even when the resistance of the ventilation and air conditioning system duct network changes.

[0055] Low voltage start-up: In inverter air conditioners, the voltage is relatively low during startup, and the fan speed can remain constant under low voltage and low temperature conditions, thereby improving the startup performance of the air conditioner under unstable voltage or low temperature conditions in winter.

[0056] Return air temperature control: In return air temperature control mode, the fan speed remains constant. The system compares the return air temperature with the set target temperature value and controls the fan speed based on the calculated cooling demand.

[0057] Supply air temperature control: Similar to return air temperature control, supply air temperature control also controls the fan speed by comparing the supply air temperature with the target temperature. In this case, the fan speed will remain constant to ensure that the supply air temperature reaches the set requirement.

[0058] Differential pressure control coordination: In situations requiring differential pressure control between the inside and outside of the channel or between different sampling points, the fan speed will remain constant. Differential pressure is controlled by adjusting the airflow output to make the pressure field within the channel as uniform as possible, thereby achieving energy savings and optimizing the temperature field.

[0059] Stable operation under total pressure: When a fan needs to operate stably under specific total pressure conditions, its speed will remain constant. Total pressure includes static pressure and dynamic pressure, and their changes will affect the fan's operating efficiency and air volume output.

[0060] Design operating point: According to Bernoulli's equation, the design operating point of the fan will remain stable, at which point the fan speed will also remain constant. This stable operating point is derived through analysis of the fan's duct resistance.

[0061] Specific environmental conditions: In specific environmental conditions, such as laboratories and computer rooms where temperature and humidity are strictly controlled, the fan speed may be kept constant in order to maintain constant environmental parameters and provide stable air volume and cooling output.

[0062] System energy-saving requirements: In some systems, the fan speed is kept constant in order to achieve a higher energy efficiency ratio. For example, in room-level air conditioning systems, by sealing the supply and return air ducts, the mixing of air is reduced, allowing the fan to operate at a constant speed, thereby reducing energy consumption.

[0063] Equipment protection mechanism: To prevent fan overload or damage, the air conditioning system will lock the fan speed at a constant safe value when an abnormality is detected, until the system returns to normal.

[0064] User-defined operating modes: The air conditioner allows users to select different operating modes, including an option to keep the fan speed constant. In this mode, the fan speed will be maintained at a constant value according to the user's settings.

[0065] If at least one of the above conditions is met, or if the desired speed of the fan is detected and remains constant within a detection range (e.g., 5 minutes), the desired speed of the fan is determined to be constant. The detection range can be set arbitrarily and is not limited to a specific duration.

[0066] As an optional implementation, if the desired fan speed is detected to be constant, the preset minimum and maximum speeds corresponding to the current operating mode are determined based on whether the current operating mode is cooling mode or heating mode.

[0067] As another optional implementation, if the desired fan speed is detected to be constant, the minimum speed and the maximum speed are determined based on the difference between the desired speed and the preset speed.

[0068] As another optional implementation, if the desired fan speed is detected to be constant, the minimum speed and the maximum speed are determined according to the desired speed and the preset speed ratio.

[0069] It should be noted that, regarding the determination of minimum and maximum speeds, the fan control strategy in this embodiment is to allow the fan speed to fluctuate within a closed range between the minimum and maximum speeds. That is, the minimum threshold for fan speed is the minimum speed, and the maximum threshold for fan speed is the maximum speed. Therefore, the period from the minimum speed to the maximum speed is the acceleration phase. The period from the maximum speed to the minimum speed is the deceleration phase. The fan control strategy is an acceleration, deceleration, acceleration... repetitive cycle. That is, from the start of acceleration to the start of deceleration, regardless of whether the speed is increasing or remaining constant, it is the acceleration phase. From the start of deceleration to the start of acceleration, regardless of whether the speed is decreasing or remaining constant, it is the deceleration phase.

[0070] In this embodiment, after determining the minimum speed and the maximum speed, or simultaneously, the acceleration running time of the acceleration phase and the deceleration running time of the deceleration phase are determined.

[0071] As an optional implementation, preset acceleration and deceleration times are obtained. Furthermore, by using a preset scheme, the periodic pulsation of wind speed can increase the acceleration within the boundary layer, thereby reducing the time-averaged boundary layer thickness. This achieves the technical effects of reducing boundary layer thermal resistance and improving heat exchange efficiency. Simultaneously, the preset scheme reduces the number of decision conditions, improving the air conditioner's response speed.

[0072] As another optional implementation, the acceleration and deceleration times are determined based on the speed difference between the minimum and maximum speeds, and the variable-speed acceleration of the fan. The variable-speed acceleration includes both the acceleration rate and the deceleration rate. The variable-speed acceleration can be a constant or a dynamic value. This further considers the fan's variable-speed capability to improve the stability of the fan's fluctuating wind speed.

[0073] As another optional implementation, the acceleration time and deceleration time are determined based on the speed difference between the minimum and maximum speeds, and the fan's variable speed acceleration. The acceleration and deceleration operation times are also determined by the time ratio between the acceleration and deceleration phases. By adjusting the ratio k of the acceleration operation time Δth and the deceleration operation time Δtl, the time-averaged target speed na of the fan can be adjusted, achieving the optimal time-averaged target speed or airflow under different operating conditions, thereby improving the heat exchange efficiency of the air conditioner.

[0074] Step S120: Adjust the control parameters of the fan based on the minimum speed, the acceleration time, the maximum speed, and the deceleration time.

[0075] It should be noted that after determining the minimum speed, acceleration time, maximum speed, and deceleration time, the air conditioner's fan is controlled to operate according to these parameters. Control parameters refer to the parameters that control the fan's operation, including but not limited to power, input voltage, and pulse signal frequency.

[0076] As an optional implementation, the air conditioner controls the fan to de-constantly rotate. Since the maximum speed is greater than the desired speed and the minimum speed is less than the desired speed, the system chooses to either decrease or increase the speed first. If decreasing the speed is chosen first, the fan speed is controlled to decrease according to the decreasing operation time. During the decreasing operation time, the fan speed can be equal to or greater than the minimum speed. Then, the fan speed is controlled to increase according to the increasing operation time. During the increasing operation time, the fan speed can be equal to or less than the maximum speed. The fan is then controlled to decrease according to the decreasing operation time, and the above stages are repeated to achieve pulsed control of the fan.

[0077] As an optional implementation of this embodiment, a speed sensor or related detection technology is used to monitor the speed of the indoor and outdoor unit fans of the air conditioner in real time. If the fan speed remains constant within a preset detection range (e.g., 5 minutes), the desired fan speed is determined to be constant. Based on the current operating mode (cooling or heating) and a preset speed difference or speed ratio, the minimum and maximum allowable fan speeds are determined. Based on preset values ​​or dynamically calculated according to the speed difference and the fan's variable acceleration, the acceleration time during the acceleration phase and the deceleration time during the deceleration phase are determined. Based on the determined minimum speed, acceleration time, maximum speed, and deceleration time, the fan is controlled to periodically fluctuate between the minimum and maximum speeds, thereby achieving pulsed airflow control. By adjusting the ratio of acceleration time to deceleration time, the optimal time-averaged target speed or airflow under different operating conditions is achieved to improve the heat exchange efficiency of the air conditioner.

[0078] Furthermore, a user interface is provided, allowing users to choose whether to enable the pulsed wind speed mode according to their personal comfort needs, and to adjust relevant parameters. The system ensures that necessary safety and protection mechanisms are included to prevent any potential damage or malfunction caused by changes in wind speed.

[0079] For example, suppose a user in a home environment wants to maintain a comfortable indoor temperature while saving energy. The system detects that the current fan speed is 1200 RPM and has remained constant for the past 5 minutes. Based on the current cooling mode, the system's preset minimum speed is 1000 RPM and maximum speed is 1500 RPM. Based on the preset values ​​or dynamically calculated according to the speed difference and the fan's variable acceleration, the system determines the acceleration phase and deceleration phase running time. During the acceleration phase, the fan gradually accelerates from 1000 RPM to 1500 RPM in 30 seconds. During the deceleration phase, the fan gradually decelerates from 1500 RPM to 1000 RPM in 60 seconds. The cycle is 90 seconds (30 seconds of acceleration + 60 seconds of deceleration), during which the fan speed pulsates between the minimum and maximum speeds.

[0080] For example, in a large shopping mall, a high air circulation rate needs to be maintained to meet the needs of numerous customers. The system detects that the current fan speed is 2000 RPM and has remained constant for the past 10 minutes. Based on the current heating mode, the system's preset minimum speed is 1800 RPM and maximum speed is 2200 RPM. Based on the preset values ​​or dynamically calculated according to the speed difference and the fan's variable acceleration, the acceleration phase and deceleration phase are determined. The acceleration time is calculated as 40 seconds, and the deceleration time is calculated as 80 seconds, with a time ratio of 1:2. During the acceleration phase, the fan accelerates from 1800 RPM to 2200 RPM in 40 seconds. During the deceleration phase, the fan decelerates from 2200 RPM to 1800 RPM in 80 seconds. The cycle is 120 seconds (40 seconds of acceleration + 80 seconds of deceleration), during which the fan speed fluctuates between the minimum and maximum speeds.

[0081] This application provides a control method for an air conditioner. The method detects whether the desired fan speed of the air conditioner has reached a constant state. If the desired fan speed is constant, it determines the minimum and maximum speeds. It then determines the acceleration phase's acceleration time and the deceleration phase's deceleration time, wherein the acceleration phase is from the minimum speed to the maximum speed, and the deceleration phase is from the maximum speed to the minimum speed. Based on the minimum speed, the acceleration time, the maximum speed, and the deceleration time, the method controls the operation of the air conditioner's fan. This solves the technical problem in related technologies where airflow forms a flow boundary layer on the fin surface, thus limiting the heat exchanger's efficiency. The method achieves the technical effect of reducing boundary layer thermal resistance and thereby improving the air conditioner's heat exchange efficiency.

[0082] In summary, this application employs a fluctuating wind speed as an improvement scheme. Under fluctuating wind speed, the periodic fluctuations in wind speed can increase the acceleration within the boundary layer, thereby reducing the time-averaged boundary layer thickness, achieving the effect of reducing boundary layer thermal resistance and improving heat transfer efficiency.

[0083] Based on Embodiment 1, in Embodiment 2 of this application, the content that is the same as or similar to that in Embodiment 1 can be referred to the above description, and will not be repeated hereafter. Based on this, step S110 includes:

[0084] Step S210: Obtain the preset speed difference or speed ratio.

[0085] It should be noted that the speed difference is the difference between the maximum speed and the minimum speed, and the speed ratio is the proportion by which the maximum speed exceeds the expected speed, or the proportion by which the minimum speed is lower than the expected speed.

[0086] For example, the speed difference is 300 rpm. The speed ratio is 50%.

[0087] Step S220: Determine the minimum speed and the maximum speed based on the speed difference and the desired speed, or according to the difference ratio and the desired speed.

[0088] It should be noted that the minimum speed can be zero.

[0089] As an optional implementation, based on design requirements or user input, a speed difference value is preset, and the minimum and maximum speeds are calculated:

[0090] Vmin = Vcurrent - ΔV / 2; Vmax = Vcurrent + ΔV / 2. Where Vmin is the minimum speed, Vmax is the maximum speed, and Vcurrent is the desired speed.

[0091] As another optional implementation, a speed ratio is preset according to design requirements or user input. The minimum and maximum speeds are then calculated.

[0092] Vmax = Vcurrent × proportional; Vmin = Vmax / proportional. That is, the minimum speed is the desired speed divided by the speed proportional, and the maximum speed is the desired speed multiplied by the speed proportional.

[0093] As another optional implementation, the speed increase and speed decrease values ​​are determined. The speed increase and speed decrease values ​​may be unequal or equal. The minimum speed is the desired speed minus the speed decrease value, and the maximum speed is the desired speed plus the speed increase value.

[0094] As another optional implementation, the rotational speed ratio is obtained, and the rotational speed increase value and rotational speed decrease value are determined based on the product of the rotational speed ratio and the desired rotational speed. Then, the minimum rotational speed and the maximum rotational speed are determined based on the desired rotational speed, the rotational speed increase value, and the rotational speed decrease value.

[0095] Preferably, the fan speed ratio is 50%. At this ratio, the fan's fluctuation range is easier to control, thereby improving the stability and heat exchange efficiency of the air conditioner.

[0096] For example, suppose in a home environment, the user wants to maintain a comfortable indoor temperature while saving energy. The system detects that the current fan speed is 1200 RPM (Revolutions Per Minute), and has remained constant for the past 5 minutes. Based on the current cooling mode and system design, we preset a speed difference.

[0097] Preset speed difference: Set to 200 RPM, which is the difference between the maximum speed and the minimum speed.

[0098] Desired speed: 1200 RPM.

[0099] Minimum rotational speed calculation: Vmin = Vcurrent - ΔV / 2;

[0100] Maximum speed calculation: Vmax=Vcurrent+ΔV / 2.

[0101] Specific values: Vmin = 1200RPM - 2200RPM = 1100RPM.

[0102] Vmax=1200RPM+2200RPM=1300RPM.

[0103] Based on the determined minimum speed of 1100 RPM and maximum speed of 1300 RPM, the system will control the fan to operate in a pulsating manner between these two limits, and optimize the heat exchange efficiency by dynamically adjusting the acceleration and deceleration time.

[0104] For example, in a large shopping mall, a high air circulation rate needs to be maintained to meet the needs of numerous customers. The system detects that the current fan speed is 2000 RPM and has remained constant for the past 10 minutes. Based on the current heating mode and system design, we preset a speed ratio.

[0105] Preset speed ratio: set to 1.2 (the ratio of maximum speed to desired speed).

[0106] Desired speed: 2000 RPM.

[0107] Maximum speed calculation: Vmax = Vcurrent × proportional;

[0108] Minimum speed calculation: Vmin = Vmax / proportional.

[0109] Specific value: Vmax = 2000 RPM × 1.2 = 2400 RPM;

[0110] Vmin=2400RPM / 1.2=2000RPM.

[0111] Based on the determined minimum speed of 2000 RPM and maximum speed of 2400 RPM, the system will control the fan to operate in a pulsating manner between these two limits, and optimize the heat exchange efficiency by dynamically adjusting the acceleration and deceleration time.

[0112] By acquiring a preset speed difference or speed ratio, and determining the minimum speed and the maximum speed based on the speed difference and the desired speed, or according to the difference ratio and the desired speed, the pulsation range of the fan speed is determined, thereby reducing the time-averaged boundary layer thickness and achieving the effect of reducing boundary layer thermal resistance and improving heat exchange efficiency.

[0113] Based on any of the above embodiments, Embodiment 3 of this application proposes a control method for an air conditioner, referring to... Figure 2 Step S110 includes:

[0114] Step S310: Determine the speed difference between the minimum speed and the maximum speed;

[0115] Step S320: Determine the acceleration time and deceleration time based on the speed difference and the fan speed change acceleration.

[0116] It should be noted that the variable acceleration of a fan includes both the rate of acceleration and the rate of deceleration. The variable acceleration can be a fixed value or a dynamically changing value. When the variable acceleration is fixed, the fan's deceleration or acceleration function is a linear function. When the variable acceleration is variable, the fan's deceleration or acceleration function is a curve.

[0117] As an optional implementation, under fixed variable acceleration, the acceleration and deceleration times are preset by the wind turbine design parameters and control system. For example, a wind turbine has a fixed acceleration rate, such as an increase of 100 RPM per minute, and a fixed deceleration rate, such as a decrease of 50 RPM per minute. In this case, if the wind turbine needs to accelerate by a difference of 1000 RPM, then the theoretical acceleration time is 1000 / 100 = 10 minutes. Similarly, if the wind turbine needs to decelerate by a difference of 500 RPM, the theoretical deceleration time is 500 / 50 = 10 minutes.

[0118] As an alternative implementation, the fan's acceleration and deceleration rates are set to be equal. This means that the fan uses the same rate when accelerating to maximum speed and decelerating to minimum speed. First, the difference ΔV between the minimum speed Vmin and the maximum speed Vmax is calculated. A fixed acceleration and deceleration rate is set, assumed to be equal, and denoted as R. The acceleration time Tup and deceleration time Tdown are calculated by dividing the speed difference by the acceleration during the speed change: Tup = Tdown = RΔV.

[0119] As an alternative implementation, to improve the responsiveness of the fan or adapt to different operating conditions, different acceleration and deceleration rates are selected for more flexible fan control to cope with rapidly changing external environments. First, the difference ΔV between the minimum and maximum speeds is calculated. The acceleration rate Rup and deceleration rate Rdown are then set. The time required for acceleration and deceleration is calculated based on their respective acceleration rates: Tup = RupΔV; Tdown = RdownΔV.

[0120] By using different acceleration and deceleration rates, a rapid response to changes in control commands is achieved.

[0121] Based on any of the above embodiments, Embodiment 4 of this application proposes a control method for an air conditioner, step S110, including:

[0122] Step S410: Determine the speed difference between the minimum speed and the maximum speed.

[0123] Step S420: Determine the acceleration time and / or deceleration time based on the speed difference and the fan speed change acceleration.

[0124] It should be noted that the acceleration time is the operating time of the fan during the acceleration phase, and the deceleration time is the operating time of the fan during the deceleration phase.

[0125] As an optional implementation, the acceleration time is equal to the deceleration time.

[0126] Step S430: Determine the time ratio between the acceleration phase and the deceleration phase.

[0127] It should be noted that the target rotational speed is defined as: na = (nl*Δtl + nh*Δth) / (Δtl + Δth). Assuming Δth = k*Δtl, then: na = (nl*Δtl + nh*k*Δtl) / (Δtl + k*Δtl) = (nl + k*nh) / (k + 1).

[0128] Where nl: minimum speed; nh: maximum speed; Δtl: acceleration time; Δth: deceleration time; k: time ratio. That is, the time ratio is the ratio of acceleration time to deceleration time.

[0129] By adjusting the ratio k of the acceleration and deceleration operation times, the average target speed na of the fan can be adjusted, thereby achieving the optimal average target speed or air volume under different operating conditions and improving the heat exchange efficiency of the air conditioner.

[0130] Step S440: Determine the acceleration running time and the deceleration running time based on the acceleration time and / or deceleration time, and the time ratio.

[0131] In this embodiment, firstly, the difference ΔV between the minimum speed Vmin and the maximum speed Vmax is calculated. Based on the fan's acceleration rate and / or deceleration rate, the acceleration rate Rup and deceleration rate Rdown are determined. Here, the acceleration rate may be equal to the deceleration rate, or the acceleration rate may not be equal to the deceleration rate.

[0132] Based on the speed difference and acceleration during gear changes, calculate the basic acceleration and deceleration times: Tup = Rup / ΔV, Tdown = Rdown / ΔV. Determine the ratio k of acceleration and deceleration time based on the required average target speed na. Here, na = (nl*Δtl + nh*Δth) / (Δtl + Δth). Since the minimum and maximum speeds are known, when the average target speed is known, substitute Δth = k*Δtl into the formula to obtain: na = (nl*Δtl + nh*k*Δtl) / (Δtl + k*Δtl) = (nl + k*nh) / (k + 1). Then, substitute the determined deceleration or acceleration time into the formula to solve for the time ratio k. Based on the time ratio k, adjust the acceleration and deceleration times: Tup_adj = k*Tup, Tdown_adj = Tdown / k. Alternatively, the acceleration time can be calculated by multiplying the acceleration time by the deceleration time, and then using the deceleration time as the deceleration time to obtain the acceleration time.

[0133] For example, suppose the minimum speed is 1500 RPM, the maximum speed is 2000 RPM, and the speed difference ΔV is 500 RPM. Set the acceleration rate to 200 RPM / min and the deceleration rate to 150 RPM / min. Tup = 500 RPM / 200 RPM / min = 2.5 min, Tdown = 500 RPM / 150 RPM / min = 3.33 min. Based on the target average speed, the time ratio k between acceleration and deceleration is determined to be 1.5. Tup_adj = 1.5 × 2.5 min = 3.75 min, Tdown_adj = 3.33 min / 1.5 = 2.22 min.

[0134] For example, suppose the minimum speed is 1500 RPM, the maximum speed is 2000 RPM, and the speed difference ΔV is 500 RPM. Set the acceleration rate to 200 RPM / min and the deceleration rate to 200 RPM / min. Tup = Tdown = 500 RPM / 200 RPM / min = 2.5 min. Based on the target speed, the time ratio k between acceleration and deceleration is determined to be 1.5, meaning the deceleration time is equal to k times the acceleration time. Therefore, the deceleration time Tdown_adj is 1.5 × 2.5 min = 3.75 min. The acceleration time Tup_adj = 2.5 min.

[0135] By employing the method of determining the acceleration and / or deceleration time based on the speed difference and the fan's speed change acceleration; determining the time ratio between the acceleration phase and the deceleration phase; and determining the acceleration operation time and the deceleration operation time based on the acceleration and / or deceleration time and the time ratio, the optimal time-averaged target speed or air volume under different operating conditions is achieved.

[0136] Based on any of the above embodiments, Embodiment 5 of this application proposes a control method for an air conditioner, which, after step S440 or S320, includes:

[0137] Step S510: Obtain the adjustment frequency for switching between the acceleration phase and the deceleration phase.

[0138] It should be noted that the adjustment frequency is the frequency at which the acceleration phase and the deceleration phase switch.

[0139] In this embodiment, the change in the adjustment frequency f affects the amplitude Δu of the wind speed pulsation and the time proportion of the wind speed pulsation, such as Figure 3 , Figure 4 and Figure 5 The comparison is shown below. From Figures 3 to 5 As the adjustment frequency f decreases, the amplitude Δu of the wind speed pulsation first increases and then remains constant, while the time proportion of the wind speed pulsation first remains constant and then decreases. There are three types of adjustment frequencies, with the adjustment frequency f = 1 / (Δtl + Δth) as the benchmark, that is, the adjustment frequency is equal to the reciprocal of the sum of the acceleration operation time and the deceleration operation time.

[0140] To increase both the amplitude and duration of wind speed pulsations, the first adjustment frequency is equal to the reciprocal of the sum of the acceleration and deceleration times. In other words, the acceleration time equals the acceleration duration, and the deceleration time equals the deceleration duration. At this point, the acceleration phase completes the transition from minimum to maximum speed, and the deceleration phase completes the transition from maximum to minimum speed. (Refer to...) Figure 4 Wherein, nl: minimum rotational speed; nh: maximum rotational speed; ul: target wind speed corresponding to minimum rotational speed; uh: target wind speed corresponding to maximum rotational speed; u∞: average wind speed; Δu: wind speed fluctuation amplitude; Δtl: duration of acceleration; Δth: duration of deceleration.

[0141] The second adjustment frequency is equal to the reciprocal of the sum of the acceleration and deceleration times. In this case, the acceleration time is less than the acceleration period, and / or the deceleration time is less than the deceleration period, i.e., it refers to... Figure 3 During the deceleration phase, the fan speed switches to the acceleration phase before it reaches the minimum speed. Similarly, during the acceleration phase, the fan speed switches to the deceleration phase before it reaches the maximum speed.

[0142] The third adjustment frequency is equal to the reciprocal of the sum of the acceleration and deceleration times. In this case, the acceleration time is greater than the acceleration duration, and / or the deceleration time is greater than the deceleration duration. (Refer to...) Figure 5 During the deceleration phase, the fan speed decreases to the minimum speed and remains at that minimum speed for a period of time before switching to the acceleration phase. Similarly, during the acceleration phase, the fan speed increases to the maximum speed and remains at that maximum speed for a period of time before switching to the deceleration phase.

[0143] As an optional implementation, a preset adjustment frequency is obtained.

[0144] As another alternative implementation, the adjustment frequency is determined based on the reciprocal of the sum of the acceleration time and the deceleration time.

[0145] Step S520: Update the acceleration running time and the deceleration running time according to the adjustment frequency.

[0146] In this embodiment, after the adjustment frequency is determined, both the acceleration running time and the deceleration running time are variable.

[0147] As an alternative implementation method, the acceleration and deceleration running times are modified simultaneously to make the values ​​approximate a determined adjustment frequency.

[0148] As another optional implementation, an invariant between the acceleration / deceleration running time and the deceleration running time is determined. Then, the value is updated based on the corresponding deceleration or acceleration running time to make the value approximate the determined adjustment frequency.

[0149] By employing the method of acquiring and switching the acceleration and deceleration phases at the adjustment frequency, and updating the acceleration and deceleration operation times based on the adjustment frequency, the wind speed pulsation amplitude is increased while the time proportion of wind speed pulsation is increased, thereby further reducing the time-averaged boundary layer thickness, and thus achieving the technical effects of reducing boundary layer thermal resistance and improving heat exchange efficiency.

[0150] Based on any of the above embodiments, Embodiment Six of this application proposes a control method for an air conditioner, step S120, including:

[0151] Step S610: Determine the acceleration control parameters and deceleration control parameters based on the minimum speed, the acceleration operation time, the maximum speed, and the deceleration operation time.

[0152] It should be noted that the control parameters include acceleration control parameters and deceleration control parameters. Acceleration control parameters include acceleration during acceleration and the final target speed, which are used to control the operating characteristics of the fan during the acceleration phase. Deceleration control parameters include deceleration during deceleration and the initial speed, which are used to control the operating characteristics of the fan during the deceleration phase.

[0153] As an optional implementation, the minimum and maximum speeds of the fan, as well as the corresponding acceleration and deceleration times, need to be set first. These parameters are fundamental to achieving the pulsed fan speed mode. Depending on system requirements, the choice is made between directly entering the acceleration or deceleration phase from a constant speed. For example, if the fan is currently operating at its minimum speed but heat exchange efficiency needs to be improved, acceleration should be selected first.

[0154] Step S620: Adjust the control parameters of the fan according to the speed-up control parameters or the speed-down control parameters, depending on whether the fan is currently in the speed-up or speed-down phase.

[0155] Acceleration control parameters: Based on the acceleration operation and the speed amplitude Δn, calculate the acceleration during acceleration: arise = Δn * Δtl. Deceleration control parameters: Similarly, based on the deceleration operation time and the speed difference amplitude Δn, calculate the deceleration during deceleration: afall = Δn * Δth. Acceleration phase: Starting from nmin, gradually increase the speed according to arise to nmax. Deceleration phase: Starting from nmax, gradually decrease the speed according to afall to nmin.

[0156] As another optional implementation, if the adjustment frequency is the second adjustment frequency, the final speed of the fan during the acceleration phase is less than the maximum speed, and the final speed of the fan during the deceleration phase is greater than the minimum speed.

[0157] For example, suppose an intelligent air conditioning system needs to dynamically adjust the fan speed according to the ambient temperature and user needs in order to optimize heat exchange efficiency and improve comfort.

[0158] Given a minimum operating speed of nmin = 1000 RPM, a maximum operating speed of nmax = 2000 RPM, a ramp-up time of Δtl = 5 minutes, and a deceleration time of Δth = 7 minutes, and assuming that heat exchange efficiency needs to be improved from a lower operating speed, we choose to ramp up the speed first.

[0159] Acceleration rate = (2000-1000) / (5×60) = 3.33 RPM / s.

[0160] Deceleration rate afall = (2000-1000) / (7×60) = 2.38 RPM / s.

[0161] Acceleration phase: The fan accelerates from 1000 RPM to 2000 RPM at 3.33 RPM / s.

[0162] Deceleration phase: The fan speed decreases from 2000 RPM to 1000 RPM at a rate of 2.38 RPM / s.

[0163] With this pulsed fan speed mode, the air conditioning system can more effectively adjust the heat exchange efficiency while maintaining a stable and comfortable indoor temperature.

[0164] Optionally, step S610 includes:

[0165] Step S611: Determine the rotational speed amplitude based on the minimum rotational speed and the maximum rotational speed;

[0166] Step S612: Determine the acceleration control parameters based on the speed amplitude and the acceleration running time, and determine the deceleration control parameters based on the speed amplitude and the deceleration running time.

[0167] It should be noted that the speed amplitude is the difference between the maximum and minimum speed. Control parameters include, but are not limited to, power and input voltage. That is, acceleration control parameters include acceleration power or acceleration input voltage. Deceleration control parameters include deceleration power and deceleration input voltage.

[0168] As an optional implementation, the difference between the maximum and minimum speeds is calculated; this is the speed amplitude. Based on the speed amplitude and the acceleration time, the power or input voltage required during acceleration is calculated. If the acceleration time is short, higher power or voltage is required for rapid acceleration. Similarly, based on the speed amplitude and the deceleration time, the power or input voltage required during deceleration is calculated. If the deceleration time is short, lower power or voltage is required for slow deceleration. The system monitors whether the fan is currently in the acceleration or deceleration phase. Depending on the current phase, the appropriate acceleration or deceleration control parameters are applied to adjust the fan's operation to smoothly reach or decrease to the target speed.

[0169] In this embodiment, refer to Figure 6 , Figure 6 This diagram illustrates the boundary layer of the fins under different wind speeds. δ represents the boundary layer thickness. Because changes in wind speed at the fin surface can produce acceleration or deceleration effects within the boundary layer, the time-averaged boundary layer thickness is reduced, thereby achieving the technical effects of reducing boundary layer thermal resistance and improving heat transfer efficiency.

[0170] By employing a method that determines acceleration and deceleration control parameters based on the minimum rotational speed, acceleration time, maximum rotational speed, and deceleration time, and then operates according to these parameters based on the current acceleration or deceleration phase of the fan, pulsed wind speed is achieved within a defined speed range and operating time, thereby improving wind speed fluctuation efficiency.

[0171] Based on any of the above embodiments, Embodiment Seven of this application proposes a control method for an air conditioner, which, after step S130, includes:

[0172] Step S710: Obtain the setting parameters and operating parameters of the air conditioner.

[0173] It should be noted that the set parameters are the air conditioning operating parameters preset by the user or the system, such as target temperature and fan speed. The operating parameters are the current operating status parameters of the air conditioning system, such as current temperature and actual fan speed.

[0174] Step S720: If the operating parameters do not conform to the target operating parameters corresponding to the set parameters, update the average target speed according to the target operating parameters.

[0175] It should be noted that the target operating parameters are the ideal operating state determined based on the set parameters.

[0176] The average target speed is the average speed that the fan should maintain, calculated based on the target operating parameters.

[0177] Step S730: Perform the steps of determining the minimum speed and the maximum speed according to the time-averaged target speed.

[0178] As an optional implementation, the system acquires the set parameters and operating parameters as follows: First, the system needs to acquire the user-set air conditioning operating parameters (such as the desired room temperature) and the current actual operating parameters of the air conditioning system (such as the current room temperature and fan speed). Then, based on the actual operating parameters, the system determines the current average target speed of the fan, which is determined based on the minimum speed, acceleration time, maximum speed, and deceleration time. The system compares the set parameters with the operating parameters and updates the target speed. If the operating parameters are detected to be inconsistent with the target operating parameters corresponding to the set parameters, the system will update the average target speed based on the target operating parameters. For example, if the user-set room temperature is higher than the current actual room temperature, the fan speed needs to be increased to increase the cooling output. Based on the updated average target speed, the system recalculates the minimum and maximum speeds of the fan. This ensures that the fan operation can reach the updated target speed, thereby achieving the target room temperature. Based on the new minimum and maximum speeds, the system will determine the control parameters for acceleration and deceleration (such as power or input voltage) according to the steps in the aforementioned implementation. Then, based on these control parameters, the fan speed is adjusted.

[0179] For example, suppose a smart air conditioning system is set to a specific room temperature (e.g., 22°C) and needs to dynamically adjust the fan speed to maintain this room temperature based on changes in the external temperature. The system receives the user-set target room temperature of 22°C and monitors the current room temperature as 24°C, with the current fan speed at 1500 RPM. Parameter comparison and speed update: The system detects that the current room temperature is higher than the target room temperature and decides to increase the fan speed to increase cooling output. Based on the temperature difference and the set cooling efficiency, the system calculates the required hourly target speed as 2000 RPM. Based on the hourly target speed of 2000 RPM, the system recalculates the minimum and maximum speeds and adjusts the speed increase and decrease control parameters accordingly. The system adjusts the fan speed based on the new control parameters so that the fan maintains an hourly average speed of 2000 RPM during subsequent operation, more effectively reducing the indoor temperature to the set 22°C.

[0180] By adopting a pulsed fan speed control scheme, the system determines whether the user's set requirements are met based on the current average speed. If the requirements are met, the system continues to execute the desired speed scheme. If the requirements are not met, the system updates the average target speed based on the difference between the set parameters and the operating parameters, thereby updating the maximum speed, minimum speed, acceleration time, and deceleration time. This improves the user experience and enhances the heat exchange efficiency of the air conditioner.

[0181] This application provides a control device for an air conditioner, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, which are executed by the at least one processor to enable the at least one processor to perform the control method for the air conditioner in the first embodiment described above.

[0182] The following is for reference. Figure 7 The diagram illustrates a structural schematic of a control device suitable for implementing an air conditioner according to embodiments of this application. The control device for the air conditioner in these embodiments may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 7 The control device of the air conditioner shown is merely an example and should not impose any limitation on the function and scope of use of the embodiments of this application.

[0183] like Figure 7As shown, the control device of the air conditioner may include a processing unit 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the air conditioner's control device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touchscreen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. The communication device 1009 allows the air conditioner's control equipment to communicate wirelessly or wiredly with other devices to exchange data. Although the figure shows control equipment for an air conditioner with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented alternatively.

[0184] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0185] The air conditioner control device provided in this application, employing the air conditioner control method described in the above embodiments, can solve the technical problem of airflow forming a flow boundary layer on the fin surface, thereby limiting the heat exchange efficiency of the heat exchanger. Compared with the prior art, the beneficial effects of the air conditioner control device provided in this application are the same as those of the air conditioner control device provided in the above embodiments, and other technical features in the air conditioner control device are the same as those disclosed in the method of the previous embodiment, and will not be repeated here.

[0186] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0187] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0188] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the air conditioner control method of the above embodiments.

[0189] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0190] The aforementioned computer-readable storage medium may be included in the control device of the air conditioner; or it may exist independently and not be assembled into the control device of the air conditioner.

[0191] The aforementioned computer-readable storage medium carries one or more programs that, when executed by the control device of the air conditioner, cause the control device of the air conditioner to: determine the minimum speed and the maximum speed of the fan according to the desired speed of the fan, and determine the acceleration operation time of the acceleration phase and the deceleration operation time of the deceleration phase; and adjust the control parameters of the fan based on the minimum speed, the acceleration operation time, the maximum speed, and the deceleration operation time.

[0192] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0193] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0194] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0195] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the control method of the air conditioner described above. This program can solve the technical problem of airflow forming a flow boundary layer on the fin surface, thereby limiting the heat exchange efficiency of the heat exchanger. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the control method of the air conditioner provided in the above embodiments, and will not be repeated here.

[0196] This application provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the air conditioner control method described above.

[0197] The computer program product provided in this application can solve the technical problem of airflow forming a flow boundary layer on the fin surface, thereby limiting the heat exchange efficiency of the heat exchanger. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the air conditioner control method provided in the above embodiments, and will not be repeated here.

[0198] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent scope of this application.

Claims

1. A control method for an air conditioner, characterized in that, The control method for the air conditioner includes: The minimum and maximum speeds are determined based on the expected speed of the wind turbine, as well as the acceleration and deceleration times during the acceleration and deceleration phases. The control parameters of the fan are adjusted based on the minimum speed, the acceleration time, the maximum speed, and the deceleration time.

2. The control method for an air conditioner as described in claim 1, characterized in that, The steps of determining the minimum and maximum speeds based on the desired speed of the wind turbine include: Obtain the preset speed difference or speed ratio; The minimum speed and the maximum speed are determined based on the speed difference and the desired speed, or based on the ratio of the difference and the desired speed.

3. The control method for an air conditioner as described in claim 1, characterized in that, The acceleration phase extends from the minimum speed to the maximum speed, and the deceleration phase extends from the maximum speed to the minimum speed. The steps of determining the acceleration time of the acceleration phase and the deceleration time of the deceleration phase include: Determine the speed difference between the minimum speed and the maximum speed; The acceleration time and deceleration time are determined based on the speed difference and the fan speed change acceleration.

4. The control method for an air conditioner as described in claim 3, characterized in that, After the step of determining the speed difference between the minimum speed and the maximum speed, the method includes: Based on the aforementioned speed difference and the fan speed change acceleration, determine the acceleration time and / or deceleration time; Determine the time ratio between the acceleration phase and the deceleration phase; The acceleration time and the deceleration time are determined based on the acceleration time and / or deceleration time, and the time ratio.

5. The control method for an air conditioner as described in claim 3 or 4, characterized in that, After determining the acceleration operation time and the deceleration operation time, the following steps are included: Obtain the adjustment frequency for switching between the acceleration phase and the deceleration phase; The acceleration running time and the deceleration running time are updated according to the adjustment frequency.

6. The control method for an air conditioner as described in claim 1, characterized in that, The step of adjusting the control parameters of the fan based on the minimum speed, the acceleration operation time, the maximum speed, and the deceleration operation time includes: The acceleration control parameters and deceleration control parameters are determined based on the minimum speed, the acceleration operation time, the maximum speed, and the deceleration operation time. The control parameters of the fan are adjusted according to the speed-up or speed-down control parameters, depending on whether the fan is currently in the speed-up or speed-down phase.

7. The control method for an air conditioner as described in claim 6, characterized in that, The step of determining the acceleration control parameters and deceleration control parameters based on the minimum speed, the acceleration operation time, the maximum speed, and the deceleration operation time includes: The rotational speed amplitude is determined based on the minimum rotational speed and the maximum rotational speed. The acceleration control parameters are determined based on the speed amplitude and the acceleration operation time, and the deceleration control parameters are determined based on the speed amplitude and the deceleration operation time.

8. The control method for an air conditioner as described in claim 1, characterized in that, After the step of adjusting the control parameters of the wind turbine according to the speed-up control parameters or the speed-down control parameters based on the current speed-up phase or the speed-down phase of the wind turbine, the following steps are included: Obtain the air conditioner's setting parameters and operating parameters; If the operating parameters do not conform to the target operating parameters corresponding to the set parameters, the target rotational speed is updated according to the target operating parameters. The steps of determining the minimum and maximum speeds are performed based on the time-averaged target speed.

9. A control device for an air conditioner, characterized in that, The control device of the air conditioner includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the control method of the air conditioner as described in any one of claims 1 to 8.

10. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the control method for the air conditioner as described in any one of claims 1 to 8.

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