Control method and device for rotating speed of air conditioner outer fan, air conditioner and medium

Abstract

The invention discloses a control method and device for the rotating speed of an air conditioner outer fan, an air conditioner and a medium. The air conditioner control method comprises the steps that if an air conditioner is in a preset mode, the indoor environment temperature and the set temperature after an outer draught fan operates at the initial rotating speed for preset time are obtained; the rotating speed of the outer fan is controlled according to the indoor environment temperature, the set temperature and the temperature change rate, and the temperature change rate is obtained through calculation according to the indoor environment temperature. According to the indoor environment temperature, the set temperature and the temperature change rate, the rotating speed of the outer fan is dynamically adjusted, the problem of single-frequency noise generated when the outer fan runs at the fixed rotating speed is effectively solved, and therefore the noise of the outdoor fan is effectively reduced, and the comfort level of a user is improved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a method, device, air conditioner, and medium for controlling the speed of an outdoor fan in an air conditioner. Background Technology

[0002] In air conditioning systems, the outdoor unit, as the core component of the cooling / heating cycle, inevitably generates mechanical and airflow noise during operation. Among these, the operating noise of the outdoor fan is one of the main noise sources, especially at night or in quiet environments, where it can significantly impact the quality of life for nearby residents, such as disrupting sleep and reducing comfort. To reduce outdoor fan noise, existing technologies typically employ a control strategy that dynamically adjusts the fan speed based on the outdoor ambient temperature. Specifically, a temperature sensor monitors the outdoor ambient temperature in real time and determines the fan's operating speed according to a pre-defined temperature-speed mapping table. For example, when the outdoor ambient temperature is low, the fan speed is reduced to decrease noise; in high-temperature environments, the fan speed is increased to enhance heat dissipation. However, when the outdoor ambient temperature remains stable for an extended period (such as several hours or even overnight), the air conditioning system maintains a constant fan speed, resulting in the fan operating at a fixed speed for an extended period. This "constant speed" operating mode not only leads to high fan noise but also reduces user comfort. Summary of the Invention

[0003] This invention provides a method, device, air conditioner, and medium for controlling the speed of an air conditioner's outdoor fan, aiming to solve the problem of high noise levels in existing air conditioner outdoor fans.

[0004] In a first aspect, embodiments of the present invention provide a method for controlling the speed of an air conditioner's outdoor fan, comprising: If the air conditioner is in the preset mode, it obtains the indoor ambient temperature and the set temperature after the outdoor fan has been running at its initial speed for a preset time. The rotational speed of the outdoor fan is controlled based on the indoor ambient temperature, the set temperature, and the temperature change rate, wherein the temperature change rate is calculated based on the indoor ambient temperature.

[0005] Secondly, embodiments of the present invention also provide a control device for the speed of an air conditioner outdoor fan, comprising: The acquisition unit is used to acquire the indoor ambient temperature and the set temperature after the outdoor fan has been running at its initial speed for a preset time, if the air conditioner is in a preset mode. The control unit is used to control the speed of the outdoor fan according to the indoor ambient temperature, the set temperature, and the temperature change rate, wherein the temperature change rate is calculated based on the indoor ambient temperature.

[0006] Thirdly, embodiments of the present invention also provide an air conditioner including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the method described in the first aspect.

[0007] Fourthly, embodiments of the present invention also provide a computer-readable storage medium storing a computer program that, when executed by a processor, can implement the method described in the first aspect.

[0008] This invention provides a method, device, air conditioner, and medium for controlling the speed of an outdoor fan in an air conditioner. The method includes: if the air conditioner is in a preset mode, acquiring the indoor ambient temperature and a set temperature after the outdoor fan has run at an initial speed for a preset time; controlling the speed of the outdoor fan based on the indoor ambient temperature, the set temperature, and a temperature change rate, wherein the temperature change rate is calculated based on the indoor ambient temperature. This invention's technical solution dynamically adjusts the outdoor fan speed based on the indoor ambient temperature, the set temperature, and the temperature change rate, effectively avoiding the single-frequency noise problem caused by fixed outdoor fan speed operation, thereby effectively reducing outdoor fan noise and improving user comfort. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a flowchart illustrating a method for controlling the speed of an air conditioner's outdoor fan according to an embodiment of the present invention. Figure 2 This is a schematic diagram of a sub-process of a method for controlling the speed of an air conditioner's outdoor fan, provided in an embodiment of the present invention. Figure 3 This is another sub-flow diagram of a method for controlling the speed of an air conditioner outdoor fan according to an embodiment of the present invention; Figure 4 A flowchart illustrating a method for controlling the speed of an air conditioner's outdoor fan, provided in another embodiment of the present invention; Figure 5 A simplified flowchart illustrating a method for controlling the speed of an air conditioner's outdoor fan, provided in an embodiment of the present invention; Figure 6 A schematic block diagram of an air conditioner outdoor fan speed control device provided in an embodiment of the present invention; Figure 7This is a schematic block diagram of an air conditioner provided in an embodiment of the present invention. Detailed Implementation

[0011] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0012] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0013] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0014] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0015] As used in this specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0016] Please see Figure 1 , Figure 1 This is a flowchart illustrating a method for controlling the speed of an air conditioner's outdoor fan according to an embodiment of the present invention. The method for controlling the speed of the air conditioner's outdoor fan will be described in detail below. Figure 1 As shown, the method includes the following steps S110-S120.

[0017] S110. If the air conditioner is in the preset mode, obtain the indoor ambient temperature and the set temperature after the outdoor fan has been running at the initial speed for a preset time.

[0018] In this embodiment of the invention, when the air conditioner is powered on and started, it first detects the current operating mode. If the air conditioner is in a preset mode, it controls the outdoor fan to run at an initial speed. After the outdoor fan has been running for a preset time, it obtains the indoor ambient temperature and the set temperature. The preset mode is either a cooling mode or a heating mode. It should be noted that in this embodiment, if the air conditioner is in a non-preset mode, it controls the outdoor fan to run normally. Normal operation means that only the indoor unit fan runs to circulate indoor air, and the outdoor unit compressor does not work. The non-preset mode refers to modes such as air supply mode and dehumidification mode that do not involve changes in compressor frequency. In other words, in modes that do not involve changes in compressor frequency, the air conditioning system does not perform frequency adjustment. It should also be noted that in this embodiment, the running time is set according to actual conditions and is not specifically limited. The initial speed is the highest speed value of the outdoor fan saved after the last air conditioner operation; if the air conditioner is starting up for the first time, the initial speed is the default speed value.

[0019] S120. The rotational speed of the outdoor fan is controlled according to the indoor ambient temperature, the set temperature, and the temperature change rate, wherein the temperature change rate is calculated based on the indoor ambient temperature.

[0020] In this embodiment of the invention, after obtaining the indoor ambient temperature and the set temperature, The temperature change rate is calculated based on the indoor ambient temperature, and the rotational speed of the outdoor fan is controlled based on the indoor ambient temperature, the set temperature, and the temperature change rate.

[0021] In this embodiment, such as Figure 2 As shown, step S120 specifically includes steps S121-S126: S121. Detect whether the indoor ambient temperature has reached the set temperature; S122. If the indoor ambient temperature reaches the set temperature, reduce the speed of the outdoor fan; S123. Determine whether the speed of the external fan is the preset minimum external speed. If the speed of the external fan is not the preset minimum external speed, proceed to step S124; otherwise, proceed to step S126. S124. Obtain the current indoor ambient temperature and the new indoor ambient temperature after the outdoor fan has been running for a preset specific time; S125. Calculate the temperature change rate based on the new indoor ambient temperature and the current indoor ambient temperature, and control the speed of the outdoor fan based on the temperature change rate; S126. Control the external fan to operate at the preset minimum external speed.

[0022] In this embodiment of the invention, if the indoor ambient temperature reaches the set temperature, it indicates that the air conditioning system is in rapid cooling mode or rapid heating mode, and the speed of the outdoor fan needs to be reduced; it is determined whether the speed of the outdoor fan is the preset minimum outdoor speed; if yes, the outdoor fan is controlled to run at the preset minimum outdoor speed; if not, the current indoor ambient temperature and the new indoor ambient temperature after the outdoor fan has run for a preset specific time are obtained. Understandably, the current indoor ambient temperature is the initial indoor ambient temperature after the preset specific time, and the new indoor ambient temperature is the final indoor ambient temperature after the preset specific time; the temperature change rate is calculated based on the new indoor ambient temperature and the current indoor ambient temperature to control the speed of the outdoor fan. It should be noted that in this embodiment, the calculation process of the temperature change rate is as follows: the temperature difference is obtained by calculating the difference between the new indoor ambient temperature and the current indoor ambient temperature; the temperature change rate is obtained by calculating the quotient of the temperature difference and the current indoor ambient temperature. For ease of understanding, it is assumed that the new indoor ambient temperature is T1, the current indoor ambient temperature is T0, and the temperature change rate is η, where η = (T1 - T0) / T0. This formula reflects the magnitude of the change in indoor ambient temperature relative to the current indoor ambient temperature and is often used to evaluate the efficiency of air conditioning systems in regulating the indoor environment. For example, if T0 = 25℃ and T1 = 23℃, then η = (23−25) / 25 = −0.08, indicating that the temperature has decreased by 8%. By monitoring the rate of temperature change, the outdoor fan speed can be dynamically adjusted to avoid user discomfort caused by sudden temperature changes, while also optimizing energy consumption and noise control.

[0023] In one embodiment, such as this embodiment, if the indoor ambient temperature has not reached the set temperature, indicating that the cooling or heating demand has not been met, the speed of the outdoor fan is increased, and the steps of acquiring the current indoor ambient temperature and the new indoor ambient temperature after the outdoor fan has run for a preset specific time are executed. It should be noted that in this embodiment, by increasing the speed of the outdoor fan, the heat dissipation (during cooling) or heat absorption (during heating) capacity of the outdoor unit's heat exchanger can be enhanced, thereby improving the efficiency of the entire refrigerant cycle and causing the indoor ambient temperature to approach the set temperature more quickly. After the outdoor fan speed is increased, the air conditioning system does not stop working, but re-enters the dynamic monitoring cycle, re-acquires the current indoor ambient temperature, and after the outdoor fan runs at a new higher speed for a preset specific time interval, a new indoor ambient temperature value is collected again to obtain the new indoor ambient temperature. This closed-loop control process of "monitoring-judgment-adjustment-re-monitoring" continues until the indoor ambient temperature reaches the set temperature.

[0024] In this embodiment, such as Figure 3 As shown, step S125 specifically includes steps S1251-S1252: S1251. If the temperature change rate is less than the first preset temperature change rate, then execute the step of controlling the external fan to run at the preset minimum external speed. S1252. If the temperature change rate is not less than the first preset temperature change rate, then the rotation speed of the external fan is controlled according to the second preset temperature change rate, wherein the second preset temperature change rate is greater than the first preset temperature change rate.

[0025] In this embodiment of the invention, it is determined whether the temperature change rate is less than a first preset temperature change rate. If it is less, the outdoor fan is controlled to operate at the preset minimum outdoor speed; if it is not less, the speed of the outdoor fan is controlled according to a second preset temperature change rate. Specifically, it is determined whether the temperature change rate is less than the second preset temperature change rate. If the temperature change rate is less than the second preset temperature change rate, the outdoor fan is controlled to operate at a preset medium speed; if the temperature change rate is not less than the second preset temperature change rate, the outdoor fan is controlled to operate at a preset high speed. For ease of understanding, assume that the first preset temperature change rate and the second preset temperature change rate are μ1 and μ2, respectively, and the temperature change rate is η. If η < μ1, it indicates that the current indoor ambient temperature is close to the set temperature or the heat load is very small, and the heat exchange intensity required by the air conditioning system is low. In this case, the outdoor fan is controlled to operate at the preset minimum outdoor speed. Understandably, the main goal of this preset minimum outdoor speed setting is to minimize the operating noise of the outdoor fan, which is particularly suitable for scenarios with high requirements for quietness, such as at night, while achieving energy saving under the premise of meeting basic heat dissipation requirements. If μ1 ≤ η < μ2, it indicates that the air conditioning system is in a medium heat load state, and the indoor ambient temperature is stabilizing. If the temperature approaches the set value, the outdoor fan is controlled to operate at a preset medium speed. Understandably, this medium heat load mode aims to balance heat dissipation efficiency and operating noise, ensuring a certain cooling or heating rate while avoiding the large noise generated by the high-speed operation of the outdoor fan. It is a common mode for achieving a balance between comfort and energy efficiency. If η≥μ2, it indicates that the current indoor ambient temperature differs significantly from the set temperature, and the air conditioning system needs to perform rapid heat exchange (such as the strong cooling / heating phase when the air conditioner is first started). In this case, the outdoor fan is controlled to operate at a preset high speed to maximize heat dissipation or heat absorption efficiency and ensure that the air conditioning system can respond quickly to temperature control requirements.

[0026] Figure 4 A flowchart illustrating a method for controlling the speed of an air conditioner's outdoor fan, as provided in another embodiment of the present invention, is shown below. Figure 4 As shown, in this embodiment, the method includes steps S110-S140. That is, in this embodiment, after step S120 in the above embodiment, the method further includes steps S130-S140.

[0027] S130. If no preset end command is received, when the outdoor fan runs from the current operating cycle to the next operating cycle, the step of detecting whether the indoor ambient temperature has reached the set temperature is executed. S140. If the preset end command is received, the highest speed of the outdoor fan during the operation of the air conditioner is saved.

[0028] In this embodiment of the invention, if the air conditioner does not receive a preset end command (e.g., the user turns off the air conditioner or the power is cut off), the indoor ambient temperature detection process will be restarted when the outdoor fan starts running from the current operating cycle to the next operating cycle. The air conditioning system will re-collect the indoor ambient temperature and compare it with the set temperature to determine whether a new round of outdoor fan speed adjustment cycle is needed. This periodic monitoring and adjustment mechanism ensures that the air conditioner can continuously adapt to the dynamic changes in indoor and outdoor heat loads, maintaining the set temperature while always pursuing the best balance between energy consumption and noise. Conversely, if the air conditioner does not receive a preset end command (e.g., the user turns off the air conditioner or switches to a non-cooling / heating mode), the highest outdoor fan speed recorded during the current air conditioner operation will be saved to a non-volatile memory before executing the shutdown process. It should be noted that in this embodiment, the reason for saving the highest outdoor fan speed during the air conditioner operation is to use this speed value as the initial speed when the air conditioner starts again, so that the air conditioning system can enter a high-efficiency operating state more quickly, achieve adaptive learning of user habits and room thermal characteristics, and improve response speed and energy efficiency.

[0029] Please see Figure 5 , Figure 5 This is a simplified flowchart illustrating a method for controlling the speed of an air conditioner's outdoor fan, provided in one embodiment of the present invention. Figure 5As shown, when the air conditioner is turned on, it checks whether the air conditioner is in a preset mode. If it is not in a preset mode, it operates normally. If it is in a preset mode, it acquires the indoor ambient temperature and the set temperature after the outdoor fan has run at its initial speed for a preset time. It checks whether the indoor ambient temperature has reached the set temperature. If it has reached the set temperature, it reduces the speed of the outdoor fan. It determines whether the speed of the outdoor fan is the preset minimum outdoor speed. If yes, it controls the outdoor fan to run at the preset minimum outdoor speed. If no, it acquires the current indoor ambient temperature T0 and the new indoor ambient temperature T1 after the outdoor fan has run for a preset specific time Δt. It calculates the temperature change rate η = (T1 - T0) / T0 based on T1 and T0. It determines whether η is less than the first preset temperature change rate μ1. If yes, it controls the outdoor fan to run at the preset minimum outdoor speed rpm1. If no, it determines whether η is less than the second preset temperature change rate μ2. If yes, it controls the outdoor fan to run at the preset medium speed rpm2. If no, it controls the outdoor fan to run at the preset high speed rpm3. It should be noted that if the indoor ambient temperature has not reached the set temperature, the outdoor fan speed will be increased, and the steps of obtaining the current indoor ambient temperature T0 and the new indoor ambient temperature T1 after the outdoor fan has run for a preset specific time Δt will be executed. It should also be noted that if no preset end command is received, the step of checking whether the indoor ambient temperature has reached the set temperature will be executed when the outdoor fan runs from the current operating cycle to the next operating cycle; if a preset end command is received, the highest speed of the outdoor fan during the air conditioning operation will be saved.

[0030] To facilitate understanding, the process of controlling the speed of the outdoor fan of an air conditioner is illustrated below with an example: Assuming the air conditioner is currently in cooling mode and the set temperature is 25℃, after the air conditioner starts, if the indoor ambient temperature is 30℃, the air conditioning system controls the outdoor fan to run at a higher initial speed to quickly lower the temperature. After running for a period of time (e.g., 10 minutes), the indoor ambient temperature is detected to have dropped to 25.5℃, close to the set temperature. The temperature change rate η is calculated. Assuming that in the next 5 minutes (Δt), the indoor ambient temperature slowly decreases from T0=25.5℃ to T1=25.2℃, the calculated temperature change rate η = (25.2 - 25.5) / 25.5 ≈ -0.012. If the first preset temperature change rate μ1 is -0.01, since η < μ1, it indicates that the temperature decrease is slow, the cooling load has decreased, and the outdoor fan speed is reduced to the lowest speed rpm1 to achieve quiet operation and energy saving. As long as the air conditioner is not turned off (and no end command has been received), it will periodically repeat the above-mentioned indoor ambient temperature detection and outdoor fan speed adjustment. If the indoor ambient temperature rises above the set temperature during operation, it will control the outdoor fan speed to increase and enhance cooling. When the air conditioner is turned off, it will record the highest outdoor fan speed during this operation, which will be used as the initial outdoor fan speed for the next time the air conditioner is turned on.

[0031] In summary, the air conditioner outdoor fan speed control method of this invention effectively solves the shortcomings of traditional control methods in terms of noise, energy consumption, and adaptability by introducing the temperature change rate to dynamically adjust the outdoor fan speed. Regarding noise control, this method finely adjusts the outdoor fan speed by monitoring the temperature change rate in real time, avoiding the single-frequency noise generated by the outdoor fan maintaining a fixed speed when the indoor ambient temperature is stable. This "constant frequency noise" easily causes auditory fatigue, especially during low-load periods such as at night. By actively reducing the outdoor fan speed, the airflow noise and mechanical vibration noise generated by the fan blade rotation are directly reduced at the source, significantly improving the user comfort in quiet environments such as at night. In terms of energy efficiency optimization, this method achieves a synergy between energy saving and noise reduction. When the system determines that the current cooling or heating capacity meets the demand (manifested as a flattening η value), it automatically reduces the outdoor fan speed, which directly reduces the power consumption of the fan motor. Simultaneously, the reduction in outdoor fan speed helps maintain better condensing pressure, thereby indirectly reducing the operating load of the compressor and improving the overall operating energy efficiency of the unit. Furthermore, this design avoids unnecessary long-term operation of the outdoor fan at maximum speed, reducing wear and tear on mechanical components and helping to extend the lifespan of the outdoor fan and compressor, thus improving the long-term reliability of the air conditioning system. In addition, this solution enhances the system's environmental adaptability and reliability. It can automatically adjust its operating status based on the actual room heat load (reflected by the rate of temperature change), better adapting to different room sizes and weather conditions. Simultaneously, avoiding unnecessary continuous high-speed operation of the fan helps reduce mechanical wear and extend its service life.

[0032] Figure 6 This is a schematic block diagram of an air conditioner outdoor fan speed control device 200 provided in an embodiment of the present invention. Figure 6 As shown, corresponding to the above-described method for controlling the speed of an air conditioner's outdoor fan, the present invention also provides an air conditioner outdoor fan speed control device 200. This air conditioner outdoor fan speed control device 200 includes a unit for executing the above-described method for controlling the speed of the air conditioner's outdoor fan, and this device can be configured in an air conditioner. Specifically, please refer to... Figure 6 The air conditioner outdoor fan speed control device 200 includes an acquisition unit 201 and a control unit 202. The functional modules are described in detail below: The acquisition unit 201 is used to acquire the indoor ambient temperature and the set temperature after the outdoor fan has been running at the initial speed for a preset time, if the air conditioner is in a preset mode. The control unit 202 is used to control the speed of the outdoor fan according to the indoor ambient temperature, the set temperature and the temperature change rate, wherein the temperature change rate is calculated based on the indoor ambient temperature.

[0033] In some embodiments, such as this one, the control unit 202 is specifically used for: Detect whether the indoor ambient temperature has reached the set temperature; If the indoor ambient temperature reaches the set temperature, the speed of the outdoor fan will be reduced. Determine whether the rotational speed of the external fan is the preset minimum external rotational speed; If the rotational speed of the outdoor fan is not the preset minimum outdoor rotational speed, then obtain the current indoor ambient temperature and the new indoor ambient temperature after the outdoor fan has been running for a preset specific time; The temperature change rate is calculated based on the new indoor ambient temperature and the current indoor ambient temperature, and the speed of the outdoor fan is controlled based on the temperature change rate. If the speed of the external fan is the preset minimum external speed, then control the external fan to run at the preset minimum external speed; If the indoor ambient temperature does not reach the set temperature, the speed of the outdoor fan is increased, and the steps of obtaining the current indoor ambient temperature and the new indoor ambient temperature after the outdoor fan has been running for a preset specific time are executed.

[0034] In some embodiments, such as this one, the control unit 202 is further configured to: If the temperature change rate is less than the first preset temperature change rate, then the step of controlling the external fan to operate at the preset minimum external speed is executed; If the temperature change rate is not less than the first preset temperature change rate, then the speed of the external fan is controlled according to the second preset temperature change rate, wherein the second preset temperature change rate is greater than the first preset temperature change rate.

[0035] In some embodiments, such as this one, the control unit 202 is further configured to: If the temperature change rate is less than the second preset temperature change rate, then the external fan is controlled to operate at a preset medium speed. If the temperature change rate is not less than the second preset temperature change rate, then the external fan is controlled to run at a preset high speed.

[0036] In some embodiments, such as this embodiment, the air conditioner outdoor fan speed control device 200 further includes: If the execution unit does not receive a preset end command, it will execute the step of detecting whether the indoor ambient temperature has reached the set temperature when the outdoor fan runs from the current operating cycle to the next operating cycle. The storage unit is used to save the highest speed of the outdoor fan during the operation of the air conditioner if the preset end command is received.

[0037] The aforementioned air conditioner outdoor fan speed control device can be implemented as a computer program, which can, for example, Figure 7 The air conditioner shown is running.

[0038] Please see Figure 7 , Figure 7 This is a schematic block diagram of an air conditioner provided in an embodiment of the present invention. The air conditioner 300 is a device capable of controlling the speed of the outdoor fan.

[0039] See Figure 7 The air conditioner 300 includes a processor 302, a memory, and a network interface 305 connected via a system bus 301. The memory may include a non-volatile storage medium 303 and internal memory 304.

[0040] The non-volatile storage medium 303 can store an operating system 3031 and a computer program 3032. When the computer program 3032 is executed, it causes the processor 302 to execute a method for controlling the speed of an air conditioner's outdoor fan.

[0041] The processor 302 provides computing and control capabilities to support the operation of the entire air conditioner 300.

[0042] The internal memory 304 provides an environment for the operation of the computer program 3032 in the non-volatile storage medium 303. When the computer program 3032 is executed by the processor 302, the processor 302 can execute a method for controlling the speed of an air conditioner outdoor fan.

[0043] This network interface 305 is used for network communication with other devices. Those skilled in the art will understand that... Figure 7 The structure shown is merely a block diagram of a portion of the structure related to the present invention and does not constitute a limitation on the air conditioner 300 to which the present invention is applied. The specific air conditioner 300 may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0044] The processor 302 is used to run a computer program 3032 stored in a memory to implement any embodiment of the above-described method for controlling the speed of the outdoor fan of an air conditioner.

[0045] It should be understood that, in this embodiment of the invention, the processor 302 may be a Central Processing Unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0046] It will be understood by those skilled in the art that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a storage medium, which is a computer-readable storage medium. The computer program is executed by a processor in the computer system to implement the process steps of the embodiments of the above methods.

[0047] Therefore, the present invention also provides a storage medium. This storage medium can be a computer-readable storage medium. The storage medium stores a computer program. When executed by a processor, the computer program causes the processor to perform any embodiment of the above-described method for controlling the speed of the outdoor fan of an air conditioner.

[0048] The storage medium can be any computer-readable storage medium capable of storing program code, such as a USB flash drive, portable hard drive, read-only memory (ROM), magnetic disk, or optical disk.

[0049] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0050] In the several embodiments provided by this invention, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For example, the division of each unit is merely a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0051] The steps in the method of this invention can be adjusted, merged, or reduced in order according to actual needs. The units in the device of this invention can be merged, divided, or reduced according to actual needs. Furthermore, the functional units in the various embodiments of this invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0052] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause an air conditioner to perform all or part of the steps of the methods described in the various embodiments of the present invention.

[0053] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0054] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Since these modifications and variations fall within the scope of the claims and their equivalents, this invention also intends to include these modifications and variations.

[0055] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for controlling the rotation speed of an outdoor fan of an air conditioner, characterized by, The method comprises the following steps: If the air conditioner is in a preset mode, obtaining the indoor environment temperature and the set temperature after the outdoor fan runs at an initial rotating speed for a preset time; Controlling the rotating speed of the outdoor fan according to the indoor environment temperature, the set temperature and a temperature change rate, wherein the temperature change rate is calculated according to the indoor environment temperature.

2. The method of claim 1, wherein, The step of controlling the rotating speed of the outdoor fan according to the indoor environment temperature, the set temperature and the temperature change rate comprises the following steps: Detecting whether the indoor environment temperature reaches the set temperature; If the indoor environment temperature reaches the set temperature, reducing the rotating speed of the outdoor fan; Judging whether the rotating speed of the outdoor fan is a preset minimum outdoor rotating speed; If the rotating speed of the outdoor fan is not the preset minimum outdoor rotating speed, obtaining the current indoor environment temperature and a new indoor environment temperature after the outdoor fan runs for a preset specific time; Calculating the temperature change rate according to the new indoor environment temperature and the current indoor environment temperature, and controlling the rotating speed of the outdoor fan according to the temperature change rate.

3. The method of claim 2, wherein, The step of judging whether the rotating speed of the outdoor fan is the preset minimum outdoor rotating speed further comprises the following step: If the rotating speed of the outdoor fan is the preset minimum outdoor rotating speed, controlling the outdoor fan to run at the preset minimum outdoor rotating speed.

4. The method of claim 3, wherein, The step of controlling the rotating speed of the outdoor fan according to the temperature change rate comprises the following steps: If the temperature change rate is less than a first preset temperature change rate, performing the step of controlling the outdoor fan to run at the preset minimum outdoor rotating speed; If the temperature change rate is not less than the first preset temperature change rate, controlling the rotating speed of the outdoor fan according to a second preset temperature change rate, wherein the second preset temperature change rate is greater than the first preset temperature change rate.

5. The method of claim 4, wherein, The step of controlling the rotating speed of the outdoor fan according to the second preset temperature change rate comprises the following steps: If the temperature change rate is less than the second preset temperature change rate, controlling the outdoor fan to run at a preset medium rotating speed; If the temperature change rate is not less than the second preset temperature change rate, controlling the outdoor fan to run at a preset high rotating speed.

6. The method of claim 2, wherein, The step of detecting whether the indoor environment temperature reaches the set temperature further comprises the following step: If the indoor environment temperature does not reach the set temperature, increasing the rotating speed of the outdoor fan, and performing the step of obtaining the current indoor environment temperature and the new indoor environment temperature after the outdoor fan runs for a preset specific time.

7. The method of claim 2, wherein, The method further comprises the following steps: If a preset end instruction is not received, performing the step of detecting whether the indoor environment temperature reaches the set temperature when the outdoor fan runs from a current running period to a next running period; If the preset end instruction is received, saving the highest rotating speed of the outdoor fan during the running of the air conditioner.

8. A device for controlling the speed of an air conditioner's outdoor fan, characterized in that, The method comprises the following steps: If the air conditioner is in a preset mode, obtaining the indoor environment temperature and the set temperature after the outdoor fan runs at an initial rotating speed for a preset time; A control unit is configured to control the rotating speed of the outdoor fan according to the indoor environment temperature, the set temperature and a temperature change rate, wherein the temperature change rate is calculated according to the indoor environment temperature.

9. An air conditioner characterized by comprising: The air conditioner comprises a memory and a processor, the memory stores a computer program, and the processor implements the method according to any one of claims 1-7 when executing the computer program.

10. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, and the computer program can implement the method according to any one of claims 1-7 when being executed by a processor.

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