Fan speed adjustment methods, devices, media, and air conditioners

Abstract

This invention discloses a fan speed adjustment method, device, medium, and air conditioner. By acquiring the current temperature change trend, the current indoor temperature difference, and the current operating frequency of the compressor, a target correction coefficient is determined, and then the fan speed is adjusted based on the target correction coefficient. This solution can dynamically adapt the fan speed according to the indoor temperature change and the real-time operating conditions of the compressor. It avoids the energy loss caused by running at high speed throughout the process in pursuit of rapid cooling, and also prevents the problem of slowed cooling speed and difficulty in reaching the required temperature on time due to premature speed reduction. Thus, it effectively solves the pain point of the existing technology that only focuses on cooling efficiency and cannot take into account the dual needs of rapid temperature reaching and energy saving.

Description

Technical Field

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

[0002] To quickly lower the indoor temperature to a preset target temperature, current air conditioning fans generally employ a high-speed, continuous operation control scheme. However, this approach focuses solely on cooling efficiency and cannot balance energy saving with rapid temperature reaching: either it maintains high-speed operation throughout the process to achieve rapid cooling, resulting in significant energy consumption; or it reduces the fan speed too early to achieve energy savings, causing a substantial slowdown in the rate of temperature decrease and making it difficult to reach the target temperature within the preset time. Summary of the Invention

[0003] Therefore, it is necessary to provide methods, devices, media, and air conditioners for adjusting fan speed to solve the problem that existing technologies, which only focus on cooling efficiency, cannot simultaneously meet the dual needs of rapid temperature reaching and energy saving.

[0004] In a first aspect, embodiments of this application provide a method for adjusting the speed of a fan, the method comprising: Obtain the current temperature change trend, current indoor temperature difference, and current compressor operating frequency; The target correction coefficient is determined based on the current temperature change trend, the current indoor temperature difference, and the current operating frequency. The fan speed is adjusted based on the target correction coefficient.

[0005] In some embodiments of this application, determining the target correction coefficient based on the current temperature change trend, the current indoor temperature difference, and the current operating frequency includes: Obtain the first mapping relationship; wherein the first mapping relationship indicates the mapping relationship between different temperature change trends, indoor temperature difference, compressor operating frequency, and correction coefficient; Based on the first mapping relationship, the current temperature change trend, the current indoor temperature difference, and the current operating frequency, the target correction coefficient is determined.

[0006] In some embodiments of this application, determining the target correction coefficient based on the first mapping relationship, the current temperature change trend, the current indoor temperature difference, and the current operating frequency includes: Based on the current indoor temperature difference and the current operating frequency, the target operating condition is determined from the first mapping relationship; Based on the target operating conditions, the target correction coefficient is determined from the first mapping relationship.

[0007] In some embodiments of this application, the target operating condition includes at least one of a first operating condition, a second operating condition, a third operating condition, a fourth operating condition, a fifth operating condition, a sixth operating condition, a seventh operating condition, and an eighth operating condition. Determining the target operating condition from the first mapping relationship based on the current indoor temperature difference and the current operating frequency includes: When the current indoor temperature difference is less than a first temperature threshold and the current operating frequency is less than a first frequency threshold, the target operating condition is determined as the first operating condition; and / or, When the current indoor temperature difference is less than a first temperature threshold and the current operating frequency is greater than or equal to a second frequency threshold, the target operating condition is determined to be the second operating condition; and / or, When the current indoor temperature difference is greater than or equal to the first temperature threshold and less than the second temperature threshold, and the current operating frequency is less than the third frequency threshold, the target operating condition is determined to be the third operating condition; and / or, When the current indoor temperature difference is greater than or equal to the first temperature threshold and less than the second temperature threshold, and the current operating frequency is greater than or equal to the fourth frequency threshold, the target operating condition is determined to be the fourth operating condition. When the current indoor temperature difference is greater than or equal to the second temperature threshold and less than or equal to the third temperature threshold, and the current operating frequency is less than the fifth frequency threshold, the target operating condition is determined to be the fifth operating condition. When the current indoor temperature difference is greater than or equal to the second temperature threshold and less than or equal to the third temperature threshold, and the current operating frequency is greater than or equal to the sixth frequency threshold, the target operating condition is determined to be the sixth operating condition. When the current indoor temperature difference is greater than the third temperature threshold and the current operating frequency is less than the seventh frequency threshold, the target operating condition is determined to be the seventh operating condition. When the current indoor temperature difference is greater than the third temperature threshold and the current operating frequency is greater than or equal to the eighth frequency threshold, the target operating condition is determined to be the eighth operating condition.

[0008] In some embodiments of this application, the target operating condition includes at least one of a first operating condition, a second operating condition, a third operating condition, a fourth operating condition, a fifth operating condition, a sixth operating condition, a seventh operating condition, and an eighth operating condition. The step of determining the target correction coefficient from the first mapping relationship based on the target operating condition includes: When the target operating condition is the first operating condition, or the third operating condition, or the fourth operating condition, or the fifth operating condition, the target correction coefficient is determined from the first mapping relationship based on the target operating condition and the current temperature change trend; When the target operating condition is the second operating condition, the first correction coefficient in the first mapping relationship is determined as the target correction coefficient; When the target operating condition is the sixth, seventh, or eighth operating condition, the target correction coefficient is determined from the first mapping relationship based on the current indoor temperature difference.

[0009] In some embodiments of this application, the current temperature change trend includes a first trend of a slower rate of temperature decrease, a second trend of a faster rate of temperature decrease, a third trend of a faster rate of temperature increase, and a fourth trend of a slower rate of temperature increase. When the target operating condition is the first operating condition, or the third operating condition, or the fourth operating condition, or the fifth operating condition, determining the target correction coefficient from the first mapping relationship based on the target operating condition and the current temperature change trend includes: When the target operating condition is the first operating condition and the current temperature change trend is the first trend, the second correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the first operating condition and the current temperature change trend is the second trend, the third correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the first operating condition and the current temperature change trend is the third trend, the fourth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the first operating condition and the current temperature change trend is the fourth trend, the fifth correction coefficient in the first mapping relationship is determined as the target correction coefficient; wherein, the third correction coefficient > the second correction coefficient > the fifth correction coefficient > the fourth correction coefficient; When the target operating condition is the third operating condition and the current temperature change trend is the first trend or the fourth trend, the sixth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the third operating condition and the current temperature change trend is the second trend, the seventh correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the third operating condition and the current temperature change trend is the third trend, the eighth correction coefficient in the first mapping relationship is determined as the target correction coefficient; wherein, the seventh correction coefficient > the sixth correction coefficient > the eighth correction coefficient; When the target operating condition is the fourth operating condition and the current temperature change trend is the first trend, the ninth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fourth operating condition and the current temperature change trend is the second trend, the tenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fourth operating condition and the current temperature change trend is the third trend, the eleventh correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fourth operating condition and the current temperature change trend is the fourth trend, the twelfth correction coefficient in the first mapping relationship is determined as the target correction coefficient; wherein, the tenth correction coefficient > the ninth correction coefficient > the twelfth correction coefficient > the eleventh correction coefficient; When the target operating condition is the fifth operating condition and the current temperature change trend is the first trend or the fourth trend, the third correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fifth operating condition and the current temperature change trend is the second trend, the fourteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fifth operating condition and the current temperature change trend is the third trend, the fifteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; wherein, the fifteenth correction coefficient > the thirteenth correction coefficient > the fourteenth correction coefficient.

[0010] In some embodiments of this application, when the target operating condition is the sixth, seventh, or eighth operating condition, determining the target correction coefficient from the first mapping relationship based on the current indoor temperature difference includes: When the current temperature change trend is the first trend, the sixteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; When the current temperature change trend is the second trend, the seventeenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; When the current temperature change trend is the third trend, the eighteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; When the current temperature change trend is the fourth trend, the nineteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; wherein, the eighteenth correction coefficient > the nineteenth correction coefficient > the sixteenth correction coefficient > the seventeenth correction coefficient.

[0011] In some embodiments of this application, adjusting the fan speed based on the target correction coefficient includes: The first speed adjustment value is obtained based on the target correction coefficient, the current indoor temperature difference, and the reference speed value; The fan speed is adjusted according to the first speed adjustment value.

[0012] Secondly, embodiments of this application also provide a fan speed adjustment device, the fan speed adjustment device comprising: The acquisition module is used to acquire the current temperature change trend, the current indoor temperature difference, and the current operating frequency of the compressor; The determination module is used to determine the target correction coefficient based on the current temperature change trend, the current indoor temperature difference, and the current operating frequency; The adjustment module is used to adjust the fan speed based on the target correction coefficient.

[0013] Thirdly, this application also provides an air conditioner, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, it implements the steps in the above-described fan speed adjustment method.

[0014] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps in the aforementioned fan speed adjustment method.

[0015] Fifthly, embodiments of this application also provide a computer program product or computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the methods provided in the various optional implementations described in embodiments of this application.

[0016] This invention provides a method, device, medium, and air conditioner for adjusting fan speed. By acquiring the current temperature change trend, the current indoor temperature difference, and the current operating frequency of the compressor, a target correction coefficient is determined, and then the fan speed is adjusted based on the target correction coefficient. This solution can dynamically adapt the fan speed according to the changes in indoor temperature and the real-time operating conditions of the compressor. It avoids the energy loss caused by running at high speed throughout the process in pursuit of rapid cooling, and also prevents the problem of slowed cooling speed and difficulty in reaching the required temperature on time due to premature speed reduction. Thus, it effectively solves the pain point of existing technologies that only focus on cooling efficiency and cannot take into account both the dual needs of rapid temperature reaching and energy saving. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] in: Figure 1 This is a flowchart illustrating the method for adjusting the fan speed. Figure 2 A flowchart illustrating the process for determining the target correction factor; Figure 3 This is a schematic diagram of the fan speed adjustment device; Figure 4 This is a structural block diagram of an air conditioner. Detailed Implementation

[0019] 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 embodiments of the present invention, and not all embodiments. 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.

[0020] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] This invention provides a method, apparatus, medium, and air conditioner for adjusting fan speed. In some embodiments of this application, the provided fan speed adjustment method can be applied to an air conditioner. Specifically, the air conditioner can be applied to different scenarios, including but not limited to industrial air conditioners or household air conditioners. In some embodiments of this application, the air conditioner can be a single unit, such as a cabinet air conditioner or a wall-mounted air conditioner; in some embodiments of this application, the air conditioner can also be a central air conditioning system composed of multiple air conditioner units, such as a multi-split air conditioner, an air-cooled heat pump system, or an air conditioning system with heat recovery function.

[0023] Please see Figure 1 , Figure 1 This is a flowchart illustrating a fan speed adjustment method provided in an embodiment of this application. Although the logical sequence is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than that shown in the figures. Specifically, the specific flow of this fan speed adjustment method is as follows: S101, obtain the current temperature change trend, current indoor temperature difference, and current operating frequency of the compressor.

[0024] Among them, the current temperature change trend is the current indoor temperature change trend, and the current indoor temperature difference is the difference between the current indoor temperature and the target set temperature.

[0025] Optionally, the current temperature change trend includes a first trend of slower temperature decrease, a second trend of faster temperature decrease, a third trend of faster temperature increase, and a fourth trend of slower temperature increase. The current temperature change trend can be determined using a "two-step judgment method." The core is to first determine the overall direction of temperature change (increasing / decreasing), then calculate the rate of change (accelerating / decelerating), and finally correspond to the four trends defined in the document, as explained in detail below: Indoor temperature was collected at three consecutive time points, namely... : The temperatures corresponding to the first two data collection cycles; : The temperature corresponding to the previous data collection cycle; The temperature corresponding to the current data collection period. The trend is then determined using the mapping relationship shown in Table 1 below:

[0026] Table 1 Optionally, the actual indoor temperature is collected in real time by the temperature sensor of the indoor unit, and the current indoor temperature difference is obtained by difference calculation in combination with the target temperature preset by the user or intelligently generated; furthermore, the drive pulse signal is captured by the frequency monitoring module on the compressor control circuit board, and the current operating frequency of the compressor is obtained after being analyzed and converted by the main control chip.

[0027] S102, determine the target correction coefficient based on the current temperature change trend, the current indoor temperature difference and the current operating frequency.

[0028] The target correction factor refers to the factor used to correct the fan speed.

[0029] In some embodiments of this application, such as Figure 2 As shown, step S102, which determines the target correction coefficient based on the current temperature change trend, the current indoor temperature difference, and the current operating frequency, includes steps S1021-S1022, as follows: S1021, Obtain the first mapping relationship.

[0030] The first mapping relationship indicates the mapping relationship between different temperature change trends, indoor temperature difference, compressor operating frequency, and correction coefficients.

[0031] Optionally, the first mapping relationship is established in advance through a large number of experiments, which establishes the correlation between different temperature change trends, temperature difference ranges, compressor frequency ranges and corresponding correction coefficients, and stores it in the air conditioner's memory. It can be directly retrieved when this step is executed.

[0032] Optionally, the first mapping relationship can be represented in the form of Table 2 below:

[0033] Table 2 In the table above, ΔT in the first row represents the indoor temperature difference. 'a' can be set to -0.5, and 'b' can be set to 0.5. The second row shows different operating frequencies of the compressor; the specific frequency threshold can be set according to your needs. The table contains... , The content includes specific correction coefficients. ,, The specific numerical value can be set according to actual needs or experimental results, and is not limited here. Of course, the first mapping relationship can also be in other forms, and is not limited here.

[0034] S1022, Based on the first mapping relationship, the current temperature change trend, the current indoor temperature difference, and the current operating frequency, determine the target correction coefficient.

[0035] Optionally, based on the current temperature change trend, the current indoor temperature difference, and the current operating frequency, a targeted search is performed in the first mapping relationship. The correction coefficient that is finally retrieved and perfectly matches the current three-dimensional matching conditions is the target correction coefficient used for subsequent fan speed adjustment calculations.

[0036] In some embodiments of this application, S1022, which determines the target correction coefficient based on the first mapping relationship, the current temperature change trend, the current indoor temperature difference, and the current operating frequency, specifically includes the following steps: determining the target operating condition from the first mapping relationship based on the current indoor temperature difference and the current operating frequency; and determining the target correction coefficient from the first mapping relationship based on the target operating condition.

[0037] In some embodiments of this application, the target operating condition includes at least one of a first operating condition, a second operating condition, a third operating condition, a fourth operating condition, a fifth operating condition, a sixth operating condition, a seventh operating condition, and an eighth operating condition. The target operating condition is determined from a first mapping relationship based on the current indoor temperature difference and the current operating frequency, specifically including the following steps: When the current indoor temperature difference is less than a first temperature threshold and the current operating frequency is less than a first frequency threshold, the target operating condition is determined as the first operating condition. And / or, when the current indoor temperature difference is less than the first temperature threshold and the current operating frequency is greater than or equal to a second frequency threshold, the target operating condition is determined as the second operating condition. And / or, when the current indoor temperature difference is greater than or equal to the first temperature threshold and less than the second temperature threshold, and the current operating frequency is less than a third frequency threshold, the target operating condition is determined as the fourth operating condition. And / or, when the current indoor temperature difference is greater than or equal to the first temperature threshold and less than the second temperature threshold, and the current operating frequency is greater than or equal to a fourth frequency threshold, the target operating condition is determined as the fourth operating condition. When the current indoor temperature difference is greater than or equal to the second temperature threshold and less than or equal to the third temperature threshold, and the current operating frequency is less than the fifth frequency threshold, the target operating condition is determined to be the fifth operating condition. When the current indoor temperature difference is greater than or equal to the second temperature threshold and less than or equal to the third temperature threshold, and the current operating frequency is greater than or equal to the sixth frequency threshold, the target operating condition is determined to be the sixth operating condition. When the current indoor temperature difference is greater than the third temperature threshold and the current operating frequency is less than the seventh frequency threshold, the target operating condition is determined to be the seventh operating condition. When the current indoor temperature difference is greater than the third temperature threshold and the current operating frequency is greater than or equal to the eighth frequency threshold, the target operating condition is determined to be the eighth operating condition.

[0038] Optionally, corresponding to Table 2, the first temperature difference threshold 'a' can be set to -0.5, and the second temperature difference threshold 'b' can be set to 0.5. The first, third, fifth, and seventh frequency thresholds can be the same value, as can the second, fourth, sixth, and eighth frequency thresholds; the specific values ​​can be set independently. A current operating frequency lower than the first, third, fifth, and seventh frequency thresholds indicates that the compressor is operating at a low load; a current operating frequency higher than the second, fourth, sixth, and eighth frequency thresholds indicates that the compressor is operating at a high load.

[0039] Understandably, the first operating condition means the actual indoor temperature is significantly lower than the user-set target temperature. Further cooling needs to be stopped to avoid excessively low temperatures leading to energy waste or discomfort. This also means the compressor is operating at a low load, with weak cooling output and limited compressor frequency adjustment range; therefore, fan speed becomes the primary control method. The second operating condition means the actual indoor temperature is lower than the user-set target temperature. Maintaining the current temperature level is necessary to avoid temperature fluctuations or extra energy consumption due to excessive adjustment. This also means the compressor is operating at a high load, with sufficient cooling output and unrestricted compressor frequency adjustment range. The third operating condition means the actual indoor temperature is slightly lower than the user-set target temperature. Fine-tuning the cooling capacity is needed to slow the rate of temperature change, allowing the temperature to rise smoothly to the target value and preventing excessive temperature fluctuations that could affect comfort. This also means the compressor is operating at a low load, with limited cooling output and limited compressor frequency adjustment range; therefore, fan speed becomes the primary control method. The fourth operating condition means that the actual indoor temperature is slightly lower than the user-set target temperature. In this case, the cooling capacity needs to be fine-tuned to slow down the rate of temperature change, allowing the temperature to rise steadily to the target value and preventing excessive temperature fluctuations that could affect comfort. This also means the compressor is operating at high load, with sufficient cooling capacity output and no limitations on compressor frequency adjustment. Based on the principle of "lowering the compressor frequency for greater energy savings," temperature control is primarily assisted by adjusting the compressor frequency, with fan speed used as a secondary control method. The fifth operating condition means that the actual indoor temperature is close to the target temperature (slightly higher or the same). In this case, the cooling capacity needs to be fine-tuned to slow down the rate of temperature change, allowing the temperature to rise steadily to the target value and preventing excessive temperature fluctuations that could affect comfort. This also means the compressor is operating at low load, with limited cooling capacity output and limited compressor frequency adjustment space. Therefore, fan speed becomes the core control method. The sixth operating condition indicates that the actual indoor temperature is close to the target temperature (slightly higher or the same). At this point, it's necessary to fine-tune the cooling capacity to slow the rate of temperature change, allowing the temperature to rise steadily to the target value and preventing excessive temperature fluctuations that could affect comfort. This also means the compressor is operating at high load, with ample cooling capacity and no limitations on compressor frequency adjustment. In accordance with energy-saving principles, priority should be given to fine-tuning the fan speed to reduce energy consumption from frequent compressor frequency adjustments. The seventh and eighth operating conditions indicate that the actual indoor temperature is significantly higher than the target temperature, requiring rapid cooling.

[0040] In some embodiments of this application, the target operating condition includes at least one of a first operating condition, a second operating condition, a third operating condition, a fourth operating condition, a fifth operating condition, a sixth operating condition, a seventh operating condition, and an eighth operating condition. Determining a target correction coefficient from a first mapping relationship based on the target operating condition specifically includes the following steps: When the target operating condition is the first, third, fourth, or fifth operating condition, determining the target correction coefficient from the first mapping relationship based on the target operating condition and the current temperature change trend. When the target operating condition is the second operating condition, determining the first correction coefficient in the first mapping relationship as the target correction coefficient. When the target operating condition is the sixth, seventh, or eighth operating condition, determining the target correction coefficient from the first mapping relationship based on the current indoor temperature difference.

[0041] In some embodiments of this application, the current temperature change trend includes a first trend of a slower rate of temperature decrease, a second trend of a faster rate of temperature decrease, a third trend of a faster rate of temperature increase, and a fourth trend of a slower rate of temperature increase. When the target operating condition is the first operating condition, or the third operating condition, or the fourth operating condition, or the fifth operating condition, the target correction coefficient is determined from the first mapping relationship based on the target operating condition and the current temperature change trend. Specifically, this includes the following steps: When the target operating condition is condition one and the current temperature change trend is trend one, the second correction coefficient in the first mapping relationship is determined as the target correction coefficient. When the target operating condition is condition one and the current temperature change trend is trend two, the third correction coefficient in the first mapping relationship is determined as the target correction coefficient. When the target operating condition is condition one and the current temperature change trend is trend three, the fourth correction coefficient in the first mapping relationship is determined as the target correction coefficient. When the target operating condition is condition one and the current temperature change trend is trend four, the fifth correction coefficient in the first mapping relationship is determined as the target correction coefficient.

[0042] Among them, the second, third, fourth and fifth correction coefficients are all non-negative numbers, and the third correction coefficient > the second correction coefficient > the fifth correction coefficient > the fourth correction coefficient.

[0043] Optionally, corresponding to column 2 of Table 2, the second correction factor is set to The third correction factor is set to The fourth correction factor is set to 0, and the fifth correction factor is set to... .

[0044] Understandably, in the first operating condition, the temperature control requirement is to reduce the cooling capacity and slowly raise the indoor temperature to approach the user-set target temperature. This is combined with the speed adjustment formula. = △T (ΔT is negative) This is the speed adjustment value, non-negative. It will make If the value is non-positive, the fan speed can only "decrease" or "remain unchanged," not "increase," thus preventing temperature rise. If the current temperature trend is the first trend (slower temperature decrease), the corresponding second correction factor can be set to 2kp to achieve the above temperature control requirements, causing the fan speed to decrease moderately, slowing the cooling rate and gradually approaching the target temperature. If the current temperature trend is the second trend (faster temperature decrease), the corresponding third correction factor can be set to 3kp to achieve the above temperature control requirements, causing the fan speed to decrease more significantly, rapidly weakening the cooling effect and preventing the temperature from continuously deviating from the target value. If the current temperature trend is the third trend (faster temperature increase), the corresponding fourth correction factor can be set to 0 to achieve the above temperature control requirements, keeping the fan speed constant. Utilizing the existing low fan speed, it follows the temperature increase trend and gradually approaches the target temperature without additional adjustments. If the current temperature change trend is the fourth trend (the rate of temperature increase slows down), in order to achieve the above temperature control requirements, the corresponding fifth correction coefficient can be set to kp, so that the fan speed is slightly reduced, the cooling capacity is moderately reduced, and the temperature is helped to rise steadily to the target value.

[0045] When the target operating condition is the third operating condition and the current temperature change trend is the first or fourth trend, the sixth correction coefficient in the first mapping relationship is determined as the target correction coefficient. When the target operating condition is the third operating condition and the current temperature change trend is the second trend, the seventh correction coefficient in the first mapping relationship is determined as the target correction coefficient. When the target operating condition is the third operating condition and the current temperature change trend is the third trend, the eighth correction coefficient in the first mapping relationship is determined as the target correction coefficient.

[0046] The seventh correction factor is positive, and the eighth correction factor is negative. The order of correction factors is: seventh correction factor > sixth correction factor > eighth correction factor.

[0047] Optionally, corresponding to column 4 of Table 2, the sixth correction factor is set to 0, and the seventh correction factor is set to... The eighth correction factor is set to .

[0048] Understandably, in the third operating condition, the temperature control requirement is to steadily raise the indoor temperature to the target value while avoiding excessive temperature fluctuations that could affect comfort. If the current temperature trend is the first trend (slower rate of temperature decrease) or the fourth trend (slower rate of temperature increase), to achieve the above temperature control requirement, the corresponding sixth correction factor is set to 0, thus keeping the fan speed constant and allowing the temperature decrease to naturally slow down based on the existing cooling output, gradually approaching the target temperature. If the current temperature trend is the second trend (faster rate of temperature decrease), to achieve the above temperature control requirement, the corresponding seventh correction factor is set to kp, combined with the formula... = △T (ΔT is negative) A negative value reduces the fan speed, decreasing cooling output and curbing the rapid temperature drop. If the current temperature trend is the third trend (accelerated temperature rise), the corresponding eighth correction factor is set to [value missing] to achieve the above temperature control requirements. kp, after calculation using the formula If the value is positive, the fan speed will increase, and the cooling capacity will be appropriately enhanced to prevent the temperature from rising too quickly and exceeding the target value.

[0049] When the target operating condition is the fourth operating condition and the current temperature change trend is the first trend, the ninth correction coefficient in the first mapping relationship is determined as the target correction coefficient. When the target operating condition is the fourth operating condition and the current temperature change trend is the second trend, the tenth correction coefficient in the first mapping relationship is determined as the target correction coefficient. When the target operating condition is the fourth operating condition and the current temperature change trend is the third trend, the eleventh correction coefficient in the first mapping relationship is determined as the target correction coefficient. When the target operating condition is the fourth operating condition and the current temperature change trend is the fourth trend, the twelfth correction coefficient in the first mapping relationship is determined as the target correction coefficient.

[0050] Among them, the ninth, tenth, twelfth and eleventh correction coefficients are all non-positive numbers, and the tenth correction coefficient > the ninth correction coefficient > the twelfth correction coefficient > the eleventh correction coefficient.

[0051] Optionally, corresponding to column 5 of Table 2, the ninth correction factor is set to The tenth correction factor is set to The eleventh correction factor is set to The twelfth correction factor is set to .

[0052] Understandably, in the fourth operating condition, the temperature control requirement is to steadily raise the indoor temperature to the target value while also considering energy efficiency. If the current temperature change trend is the first trend (the rate of temperature decrease slows down), the corresponding ninth correction factor can be set to achieve the above temperature control requirement. kp, = △T (ΔT is negative) If the value is positive, the fan speed is slightly increased to moderately enhance the refrigeration cycle efficiency, and the compressor frequency is reduced to achieve gentle temperature control. If the current temperature change trend is the second trend (the rate of temperature decrease is accelerating), to achieve the above temperature control requirements, the corresponding tenth correction factor can be set to 0, the fan speed remains unchanged, and the rapid temperature decrease is mainly curbed by reducing the compressor frequency to avoid additional energy consumption. If the current temperature change trend is the third trend (the rate of temperature increase is accelerating), to achieve the above temperature control requirements, the corresponding eleventh correction factor can be set to... 3kp, calculated using the formula A large positive number indicates a significant increase in fan speed, which, combined with compressor frequency reduction, balances the cooling capacity to prevent the temperature from rising beyond the target value. If the current temperature trend is the fourth trend (slower rate of temperature increase), the corresponding twelfth correction factor can be set to [value missing] to achieve the above temperature control requirements. 2kp, calculated using the formula With a moderately positive value, the fan speed is increased appropriately, and the frequency of the auxiliary compressor is finely adjusted to ensure that the temperature stabilizes and approaches the target value.

[0053] When the target operating condition is the fifth operating condition and the current temperature change trend is the first or fourth trend, the third correction coefficient in the first mapping relationship is determined as the target correction coefficient. When the target operating condition is the fifth operating condition and the current temperature change trend is the second trend, the fourteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient. When the target operating condition is the fifth operating condition and the current temperature change trend is the third trend, the fifteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient.

[0054] Among them, the fifteenth correction factor is positive and the fourteenth correction factor is negative; the fifteenth correction factor > the thirteenth correction factor > the fourteenth correction factor.

[0055] Optionally, corresponding to column 6 of Table 2, the thirteenth correction factor is set to 0, and the fourteenth correction factor is set to... The fifteenth correction factor is set to .

[0056] Understandably, in the fifth operating condition, the temperature control requirement is to maintain a basically stable temperature, making minor adjustments to the cooling capacity to ensure comfort and minimize energy consumption. If the current temperature change trend is the first trend (slower rate of temperature decrease) or the fourth trend (slower rate of temperature increase), to achieve the above temperature control requirement, the corresponding thirteenth correction factor can be set to 0, the fan speed remains unchanged, and the temperature is maintained stable based on the existing cooling output, without any additional adjustments. If the current temperature change trend is the second trend (faster rate of temperature decrease), to achieve the above temperature control requirement, the corresponding fourteenth correction factor can be set to... kp, = △T (ΔT is positive) A negative value slightly reduces the fan speed, weakening the cooling effect and preventing excessive temperature drop. If the current temperature trend is the third trend (accelerated temperature rise), to achieve the above temperature control requirements, the corresponding fifteenth correction factor can be set to kp, calculated using the formula. A positive number indicates a slight increase in fan speed, which enhances cooling capacity and prevents a rapid rise in temperature.

[0057] Optionally, corresponding to column 3 of Table 2, the first correction factor for the second operating condition is 0.

[0058] Understandably, in the second operating condition, the temperature control requirement is to reduce the cooling capacity and slowly raise the indoor temperature to approach the user's target temperature. Since reducing the compressor frequency is more energy-efficient than reducing the fan speed, this operating condition prioritizes controlling the cooling capacity by adjusting the compressor frequency, without needing to make additional adjustments to the fan speed. Instead, the core control principle is to maintain a stable fan speed, thereby maximizing energy savings while ensuring effective temperature control.

[0059] In some embodiments of this application, when the target operating condition is the sixth, seventh, or eighth operating condition, a target correction coefficient is determined from the first mapping relationship based on the current indoor temperature difference. Specifically, this includes the following steps: When the current temperature change trend is the first trend, the sixteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient. When the current temperature change trend is the second trend, the seventeenth correction coefficient in the first mapping relationship is determined as the target correction coefficient. When the current temperature change trend is the third trend, the eighteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient. When the current temperature change trend is the fourth trend, the nineteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient.

[0060] Among them, the sixteenth, seventeenth, eighteenth and nineteenth correction coefficients are all non-negative numbers, with the eighteenth correction coefficient > the nineteenth correction coefficient > the sixteenth correction coefficient > the seventeenth correction coefficient.

[0061] The thirteenth correction factor is set as follows: The fourteenth correction factor is set to The fifteenth correction factor is set to The sixteenth correction factor is set to .

[0062] Optionally, corresponding to columns 7-9 of Table 2, the sixteenth correction factor is set to... The seventeenth correction factor is set to The eighteenth correction factor is set to The nineteenth correction factor is set to .

[0063] Understandably, in the sixth operating condition, the temperature control requirement is to precisely match the cooling capacity, maintain the temperature stable near the target value, and minimize energy consumption. If the current temperature change trend is the first trend (the rate of temperature decrease slows down), to achieve the above temperature control requirement, the corresponding sixteenth correction factor can be set to kp, combined with... = △T (ΔT is positive) If the value is positive, the fan speed is slightly increased to enhance the refrigeration cycle efficiency, while the compressor frequency is slightly reduced to maintain temperature stability. If the current temperature trend is the second trend (the rate of temperature decrease is accelerating), to achieve the above temperature control requirements, the corresponding seventeenth correction factor can be set to 0, the fan speed remains unchanged, and the cooling effect is weakened by reducing the compressor frequency to avoid excessive temperature drop. If the current temperature trend is the third trend (the rate of temperature increase is accelerating), to achieve the above temperature control requirements, the corresponding eighteenth correction factor can be set to 3kp, calculated using the formula. A large positive number indicates a significant increase in fan speed, rapidly enhancing cooling capacity, which, combined with compressor frequency adjustments, curbs temperature rise. If the current temperature trend follows the fourth trend (slower rate of temperature increase), to achieve the above temperature control requirements, the corresponding nineteenth correction factor can be set to 2kp, calculated using the formula. A moderately positive value indicates a moderate increase in fan speed, assisting the compressor in maintaining cooling capacity and ensuring stable temperature. In the seventh and eighth operating conditions, the temperature control requirement is to rapidly reduce the indoor temperature to the target value, while simultaneously reducing unnecessary energy consumption through reasonable speed adjustment. If the current temperature change trend is the primary trend (slower rate of temperature decrease), to achieve the above temperature control requirements, the corresponding sixteenth correction factor can be set to kp, combined with the formula... = △T (ΔT is positive) If the value is positive, the fan speed increases slightly, accelerating air circulation, improving heat exchange efficiency, and driving a continuous temperature decrease. If the current temperature trend is the second trend (the rate of temperature decrease accelerates), to achieve the above temperature control requirements, the corresponding seventeenth correction factor is set to 0, the fan speed remains unchanged, and the temperature is rapidly reduced by relying on the existing high cooling output, avoiding excessive energy consumption due to excessive fan speed. If the current temperature trend is the third trend (the rate of temperature increase accelerates), to achieve the above temperature control requirements, the corresponding eighteenth correction factor can be set to 3kp, calculated using the formula. A large positive number significantly increases the fan speed, maximizing cooling capacity and quickly curbing the temperature rise. If the current temperature trend is the fourth trend (slower temperature rise), to achieve the above temperature control requirements, the corresponding nineteenth correction factor can be set to 2kp, calculated using the formula. A moderately positive value indicates that the fan speed is increased appropriately to enhance the cooling effect and push the temperature closer to the target value.

[0064] S103, adjusts the fan speed based on the target correction coefficient.

[0065] In some embodiments of this application, S103, which adjusts the fan speed based on a target correction coefficient, specifically includes the following steps: obtaining a first speed adjustment value based on the target correction coefficient, the current indoor temperature difference, and a reference speed value; and adjusting the fan speed based on the first speed adjustment value.

[0066] The first speed adjustment value refers to the specific speed value that the fan needs to be adjusted to, calculated proportionally based on the target correction coefficient.

[0067] Optionally, the formula for calculating the first speed adjustment value is: = △T, This is the first speed adjustment value; The target correction factor; For example, the reference speed value. ΔT represents the current indoor temperature difference.

[0068] Alternatively, the formula for adjusting the fan speed can be expressed as: , The adjusted fan speed. The fan speed before adjustment.

[0069] The above embodiments determine the target correction coefficient by acquiring the current temperature change trend, the current indoor temperature difference, and the current operating frequency of the compressor, and then adjust the fan speed based on the target correction coefficient. This solution can dynamically adapt the fan speed according to the indoor temperature change and the real-time operating conditions of the compressor. It avoids the energy loss caused by running at high speed throughout the process in pursuit of rapid cooling, and also prevents the problem of slowing down the cooling speed and difficulty in reaching the temperature on time due to premature speed reduction. Thus, it effectively solves the pain point of the existing technology that only focuses on cooling efficiency and cannot take into account the dual needs of rapid temperature reaching and energy saving.

[0070] Optionally, before executing S101-S103, after the air conditioner is started and enters the automatic cooling mode, to ensure the cooling effect and user comfort during the initial operation phase, a process for determining the initial operating level of the indoor fan will be executed first. First, the current indoor temperature difference is determined, and the initial operating level of the indoor fan is determined according to a preset temperature difference and level correspondence rule. The specific correspondence is shown in Table 3 below:

[0071] Table 3 Secondly, after determining the initial setting, the indoor fan will run stably at that setting for 2-3 minutes. By running at the fixed initial setting for a period of time, the indoor temperature can be initially made more even, providing a stable data basis for accurate judgment of subsequent temperature change trends and indoor temperature differences. Finally, after the initial 2-3 minute running phase ends, the air conditioner automatically switches to dynamic speed adjustment mode and begins to execute the complete process of S101-S103, realizing real-time dynamic adaptation of the fan speed.

[0072] Optionally, in addition to executing S101-S103, the air conditioner can also adjust the fan speed based on temperature difference data within a fixed time period. Specifically, this process can be as follows: at fixed time intervals (e.g., 60 seconds), the difference between the indoor temperature and the target set temperature is collected and calculated in real time to obtain the single indoor temperature difference ΔT. After accumulating n fixed time periods (e.g., four 60-second periods), the average temperature difference over this period is calculated using an arithmetic mean method. .

[0073] Optionally, the integral adjustment calculation formula for the fan speed is set as follows: , The adjusted fan speed. The fan speed before adjustment. This is the second speed adjustment value. Wherein the second speed adjustment value... r i The calculation method is as follows: , The target integral coefficient is denoted as .

[0074] Optionally, the target integral coefficient The rules for determining the value of are shown in Table 4 below:

[0075] Table 4 in As a positive number, based on the above formula and parameter value rules, the speed control logic of the integral adjustment stage is as follows: when the average temperature difference is positive... When it is a positive number, the target integral coefficient The value is positive, and it represents the reference speed. The integral adjustment value obtained by multiplying the three factors is a fixed positive number. r i The value is positive. At this point, a positive adjustment value is added to the current fan speed, increasing the fan speed and the indoor unit's airflow rate. This accelerates the heat exchange efficiency between the indoor air and the heat exchanger, thus achieving faster cooling. When the average temperature difference... When it is negative, the target integral coefficient Similarly, if the value is positive, the reference speed... Keeping the numbers constant, the integral adjustment value obtained by multiplying the three is... r i The value is negative. At this time, the current fan speed is superimposed with a negative adjustment value, the fan speed decreases, the indoor unit's air blowing speed decreases, the heat exchange efficiency between indoor air and heat exchanger is reduced, the indoor temperature is prevented from dropping further, and the comfort of the body is ensured.

[0076] Optionally, in addition to implementing S101-S103, besides temperature control methods based on fan speed regulation, compressor frequency regulation can also be used as a compensation method. For example, by combining the current operating frequency of the compressor with the real-time changes in indoor temperature, a linkage compensation mechanism between compressor frequency regulation and fan speed regulation can be established. When the temperature control effect after adjusting the fan speed does not meet expectations, or when the indoor temperature change trend fluctuates significantly, the cooling capacity can be accurately compensated by finely adjusting the compressor operating frequency, so that fan speed regulation and compressor frequency regulation complement each other, further improving temperature control accuracy and energy saving effect.

[0077] Specifically, in scenarios such as the seventh and eighth operating conditions where there is a large indoor temperature difference and rapid cooling is required, if the fan has been adjusted to a suitable high speed according to the target correction coefficient, but the indoor temperature drop rate still does not reach the preset rate, the compressor operating frequency can be appropriately increased to increase the cooling capacity output. This, combined with the high-speed fan, accelerates indoor air heat exchange and achieves the goal of rapid cooling. In scenarios such as the second and fourth operating conditions where the compressor operates under high load, if the indoor temperature shows an excessive drop after the fan speed remains unchanged or is slightly adjusted, the compressor operating frequency can be appropriately reduced to decrease the cooling capacity. The air circulation control of the fan can be used to maintain a stable temperature and avoid unnecessary energy consumption caused by the continuous high-load operation of the compressor. In scenarios such as the first and third operating conditions where the compressor operates under low load, if the indoor temperature rises too slowly after the fan speed is reduced, the compressor operating frequency can be slightly increased to supplement the slight adjustment needs of the cooling capacity. This, combined with the fan speed control, allows the temperature to accurately approach the target value.

[0078] Meanwhile, the compressor's frequency adjustment range needs to be correlated with the fan speed adjustment value. The frequency adjustment step size and upper and lower frequency limits are all limited according to the current indoor temperature difference, temperature change trend and fan speed adjustment range. This avoids increased energy consumption and equipment damage caused by frequent and large-scale compressor frequency adjustments, ensuring a temperature control logic that prioritizes fan speed adjustment and uses compressor frequency adjustment as a supplement. Ultimately, this achieves a precise match between cooling capacity and indoor temperature control requirements, maximizing energy saving and consumption reduction of the overall system while ensuring rapid temperature reach.

[0079] To facilitate better implementation of the fan speed adjustment method of this application, this application also provides a fan speed adjustment device based on the above-described fan speed adjustment method. The meanings of the terms used are the same as in the above-described fan speed adjustment method, and specific implementation details can be found in the description of the method embodiments.

[0080] Please see Figure 3 , Figure 3 This is a schematic diagram of the structure of the fan speed adjustment device provided in the embodiments of this application, which may specifically include: The acquisition module 301 is used to acquire the current temperature change trend, the current indoor temperature difference, and the current operating frequency of the compressor; The determination module 302 is used to determine the target correction coefficient based on the current temperature change trend, the current indoor temperature difference, and the current operating frequency. The adjustment module 303 is used to adjust the fan speed based on the target correction coefficient.

[0081] In the above embodiment, the determining module 302 is used to determine the target correction coefficient by acquiring the current temperature change trend, the current indoor temperature difference, and the current operating frequency of the compressor. The adjusting module 303 is used to adjust the fan speed based on the target correction coefficient. This solution can dynamically adapt the fan speed according to the changes in indoor temperature and the real-time operating conditions of the compressor. This avoids the energy loss caused by running at high speed throughout the process in pursuit of rapid cooling, and also prevents the problem of slowing down the cooling speed and difficulty in reaching the temperature on time due to premature speed reduction. Thus, it effectively solves the pain point of the existing technology that only focuses on cooling efficiency and cannot take into account the dual needs of rapid temperature reaching and energy saving.

[0082] In some embodiments of this application, the determining module 302 determines the target correction coefficient based on the current temperature change trend, the current indoor temperature difference, and the current operating frequency, including: Obtain the first mapping relationship; wherein, the first mapping relationship indicates the mapping relationship between different temperature change trends, indoor temperature difference, compressor operating frequency, and correction coefficient; Based on the first mapping relationship, the current temperature change trend, the current indoor temperature difference, and the current operating frequency, the target correction coefficient is determined.

[0083] In some embodiments of this application, the determining module 302 determines the target correction coefficient based on the first mapping relationship, the current temperature change trend, the current indoor temperature difference, and the current operating frequency, including: Based on the current indoor temperature difference and current operating frequency, determine the target operating condition from the first mapping relationship; Based on the target operating conditions, the target correction coefficient is determined from the first mapping relationship.

[0084] In some embodiments of this application, the target operating condition includes at least one of a first operating condition, a second operating condition, a third operating condition, a fourth operating condition, a fifth operating condition, a sixth operating condition, a seventh operating condition, and an eighth operating condition. The determining module 302 determines the target operating condition from a first mapping relationship based on the current indoor temperature difference and the current operating frequency, including: When the current indoor temperature difference is less than a first temperature threshold and the current operating frequency is less than a first frequency threshold, the target operating condition is determined as the first operating condition; and / or, When the current indoor temperature difference is less than the first temperature threshold and the current operating frequency is greater than or equal to the second frequency threshold, the target operating condition is determined to be the second operating condition; and / or, When the current indoor temperature difference is greater than or equal to the first temperature threshold and less than the second temperature threshold, and the current operating frequency is less than the third frequency threshold, the target operating condition is determined to be the third operating condition; and / or, When the current indoor temperature difference is greater than or equal to the first temperature threshold and less than the second temperature threshold, and the current operating frequency is greater than or equal to the fourth frequency threshold, the target operating condition is determined to be the fourth operating condition. When the current indoor temperature difference is greater than or equal to the second temperature threshold and less than or equal to the third temperature threshold, and the current operating frequency is less than the fifth frequency threshold, the target operating condition is determined to be the fifth operating condition. When the current indoor temperature difference is greater than or equal to the second temperature threshold and less than or equal to the third temperature threshold, and the current operating frequency is greater than or equal to the sixth frequency threshold, the target operating condition is determined to be the sixth operating condition. When the current indoor temperature difference is greater than the third temperature threshold and the current operating frequency is less than the seventh frequency threshold, the target operating condition is determined to be the seventh operating condition. When the current indoor temperature difference is greater than the third temperature threshold and the current operating frequency is greater than or equal to the eighth frequency threshold, the target operating condition is determined to be the eighth operating condition.

[0085] In some embodiments of this application, the target operating condition includes at least one of a first operating condition, a second operating condition, a third operating condition, a fourth operating condition, a fifth operating condition, a sixth operating condition, a seventh operating condition, and an eighth operating condition. The determining module 302 determines a target correction coefficient from a first mapping relationship based on the target operating condition, including: When the target operating condition is the first operating condition, or the third operating condition, or the fourth operating condition, or the fifth operating condition, the target correction coefficient is determined from the first mapping relationship based on the target operating condition and the current temperature change trend. When the target working condition is the second working condition, the first correction coefficient in the first mapping relationship is determined as the target correction coefficient; When the target operating condition is the sixth, seventh, or eighth operating condition, the target correction coefficient is determined from the first mapping relationship based on the current indoor temperature difference.

[0086] In some embodiments of this application, the current temperature change trend includes a first trend of slower temperature decrease, a second trend of faster temperature decrease, a third trend of faster temperature increase, and a fourth trend of slower temperature increase. When the target operating condition is the first operating condition, or the third operating condition, or the fourth operating condition, or the fifth operating condition, the determining module 302 determines a target correction coefficient from a first mapping relationship based on the target operating condition and the current temperature change trend, including: When the target operating condition is the first operating condition and the current temperature change trend is the first trend, the second correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the first operating condition and the current temperature change trend is the second trend, the third correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the first operating condition and the current temperature change trend is the third trend, the fourth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the first operating condition and the current temperature change trend is the fourth trend, the fifth correction coefficient in the first mapping relationship is determined as the target correction coefficient; wherein, the third correction coefficient > the second correction coefficient > the fifth correction coefficient > the fourth correction coefficient; When the target operating condition is the third operating condition and the current temperature change trend is the first or fourth trend, the sixth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the third operating condition and the current temperature change trend is the second trend, the seventh correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the third operating condition and the current temperature change trend is the third trend, the eighth correction coefficient in the first mapping relationship is determined as the target correction coefficient; wherein, the seventh correction coefficient > the sixth correction coefficient > the eighth correction coefficient; When the target operating condition is the fourth operating condition and the current temperature change trend is the first trend, the ninth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fourth operating condition and the current temperature change trend is the second trend, the tenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fourth operating condition and the current temperature change trend is the third trend, the eleventh correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fourth operating condition and the current temperature change trend is the fourth trend, the twelfth correction coefficient in the first mapping relationship is determined as the target correction coefficient; wherein, the tenth correction coefficient > the ninth correction coefficient > the twelfth correction coefficient > the eleventh correction coefficient; When the target operating condition is the fifth operating condition and the current temperature change trend is the first or fourth trend, the third correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fifth operating condition and the current temperature change trend is the second trend, the fourteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fifth operating condition and the current temperature change trend is the third trend, the fifteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; wherein, the fifteenth correction coefficient > the thirteenth correction coefficient > the fourteenth correction coefficient.

[0087] In some embodiments of this application, when the target operating condition is the sixth, seventh, or eighth operating condition, the determining module 302 determines the target correction coefficient from the first mapping relationship based on the current indoor temperature difference, including: When the current temperature change trend is the first trend, the sixteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; When the current temperature change trend is the second trend, the seventeenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; When the current temperature change trend is the third trend, the eighteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; When the current temperature change trend is the fourth trend, the nineteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; where the eighteenth correction coefficient > the nineteenth correction coefficient > the sixteenth correction coefficient > the seventeenth correction coefficient.

[0088] In some embodiments of this application, the adjustment module 303 adjusts the fan speed based on a target correction coefficient, including: The first speed adjustment value is obtained based on the target correction factor, the current indoor temperature difference, and the reference speed value; The fan speed is adjusted based on the first speed adjustment value.

[0089] In addition, this application also provides an air conditioner, such as Figure 4 As shown, it illustrates the structural diagram of the air conditioner involved in this application, specifically: The air conditioner may include components such as a processor 401 with one or more processing cores, a memory 402 with one or more computer-readable storage media, a power supply 403, and an input unit 404. Those skilled in the art will understand that... Figure 4 The air conditioner structure shown does not constitute a limitation on the air conditioner and may include more or fewer components than shown, or combine certain components, or have different component arrangements. Wherein: The processor 401 is the control center of the air conditioner. It connects to various parts of the air conditioner via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 402, and by calling data stored in the memory 402, it performs various functions and processes data, thereby providing overall monitoring of the air conditioner. Optionally, the processor 401 may include one or more processing cores; preferably, the processor 401 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications, and the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 401.

[0090] The memory 402 can be used to store software programs and modules. The processor 401 executes various functional applications and data processing by running the software programs and modules stored in the memory 402. The memory 402 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, at least one application program required for a function, etc.; the data storage area may store data created based on the use of the air conditioner, etc. In addition, the memory 402 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 402 may also include a memory controller to provide the processor 401 with access to the memory 402.

[0091] The air conditioner also includes a power supply 403 that supplies power to the various components. Preferably, the power supply 403 can be logically connected to the processor 401 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 403 may also include one or more DC or AC power supplies, recharging systems, power equipment debugging circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0092] The air conditioner may also include an input unit 404, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0093] Although not shown, the air conditioner may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 401 in the air conditioner will load the executable files corresponding to the processes of one or more application programs into the memory 402 according to the following instructions, and the processor 401 will run the application programs stored in the memory 402 to realize the steps in any of the fan speed adjustment methods provided in this application embodiment: obtaining the current temperature change trend, the current indoor temperature difference, the current operating frequency of the compressor, and a first mapping relationship; wherein, the first mapping relationship indicates the relationship between the correction coefficients corresponding to different temperature change trends, indoor temperature differences, and compressor operating frequencies, the temperature change trend is the change trend of indoor temperature, and the indoor temperature difference is the difference between the indoor temperature and the target set temperature; based on the first mapping relationship, the correction coefficients corresponding to the current temperature change trend, the current indoor temperature difference, and the current operating frequency are determined as target correction coefficients; based on the target correction coefficients, a proportional calculation is performed to obtain a first speed adjustment value for the fan speed; and the fan speed is adjusted based on the first speed adjustment value.

[0094] The above embodiment obtains the first mapping relationship between the current temperature change trend, indoor temperature difference, compressor operating frequency and corresponding correction coefficient, determines the target correction coefficient and calculates the first speed adjustment value of the fan speed to complete the speed adjustment. This solution can dynamically adapt the fan speed according to the indoor temperature change and the real-time operating conditions of the compressor. It avoids the power loss caused by running at high speed throughout the process in pursuit of rapid cooling, and also prevents the problem of slowing down the cooling speed and difficulty in reaching the temperature on time due to premature speed reduction. Thus, it effectively solves the pain point of the existing technology that only focuses on cooling efficiency and cannot take into account the dual needs of rapid temperature reaching and energy saving, and achieves the dual goals of rapidly reducing the indoor temperature to the target set temperature and energy saving.

[0095] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0096] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0097] Therefore, this application provides a computer-readable storage medium storing a computer program that can be loaded by a processor to execute the steps in any of the fan speed adjustment methods provided in this application.

[0098] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0099] The computer-readable storage medium may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0100] Since the instructions stored in the computer-readable storage medium can execute the steps in any of the fan speed adjustment methods provided in this application, the beneficial effects that any of the fan speed adjustment methods provided in this application can achieve can be realized, as detailed in the preceding embodiments, and will not be repeated here.

[0101] The present application provides a detailed description of a fan speed adjustment method, device, air conditioner, and computer-readable storage medium. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, those skilled in the art will recognize that there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method of adjusting the rotational speed of a fan, characterized by, The method includes: Obtain the current temperature change trend, current indoor temperature difference, and current compressor operating frequency; The target correction coefficient is determined based on the current temperature change trend, the current indoor temperature difference, and the current operating frequency. The fan speed is adjusted based on the target correction coefficient.

2. The fan speed adjustment method according to claim 1, characterized in that, The determination of the target correction coefficient based on the current temperature change trend, the current indoor temperature difference, and the current operating frequency includes: Obtain the first mapping relationship; wherein the first mapping relationship indicates the mapping relationship between different temperature change trends, indoor temperature difference, compressor operating frequency, and correction coefficient; Based on the first mapping relationship, the current temperature change trend, the current indoor temperature difference, and the current operating frequency, the target correction coefficient is determined.

3. The fan speed adjustment method according to claim 2, characterized in that, The step of determining the target correction coefficient based on the first mapping relationship, the current temperature change trend, the current indoor temperature difference, and the current operating frequency includes: Based on the current indoor temperature difference and the current operating frequency, the target operating condition is determined from the first mapping relationship; Based on the target operating conditions, the target correction coefficient is determined from the first mapping relationship.

4. The fan speed adjustment method according to claim 3, characterized in that, The target operating condition includes at least one of the following: a first operating condition, a second operating condition, a third operating condition, a fourth operating condition, a fifth operating condition, a sixth operating condition, a seventh operating condition, and an eighth operating condition. Determining the target operating condition from the first mapping relationship based on the current indoor temperature difference and the current operating frequency includes: When the current indoor temperature difference is less than a first temperature threshold and the current operating frequency is less than a first frequency threshold, the target operating condition is determined as the first operating condition; and / or, When the current indoor temperature difference is less than a first temperature threshold and the current operating frequency is greater than or equal to a second frequency threshold, the target operating condition is determined to be the second operating condition; and / or, When the current indoor temperature difference is greater than or equal to the first temperature threshold and less than the second temperature threshold, and the current operating frequency is less than the third frequency threshold, the target operating condition is determined to be the third operating condition; and / or, When the current indoor temperature difference is greater than or equal to the first temperature threshold and less than the second temperature threshold, and the current operating frequency is greater than or equal to the fourth frequency threshold, the target operating condition is determined to be the fourth operating condition. When the current indoor temperature difference is greater than or equal to the second temperature threshold and less than or equal to the third temperature threshold, and the current operating frequency is less than the fifth frequency threshold, the target operating condition is determined to be the fifth operating condition. When the current indoor temperature difference is greater than or equal to the second temperature threshold and less than or equal to the third temperature threshold, and the current operating frequency is greater than or equal to the sixth frequency threshold, the target operating condition is determined to be the sixth operating condition. When the current indoor temperature difference is greater than the third temperature threshold and the current operating frequency is less than the seventh frequency threshold, the target operating condition is determined to be the seventh operating condition. When the current indoor temperature difference is greater than the third temperature threshold and the current operating frequency is greater than or equal to the eighth frequency threshold, the target operating condition is determined to be the eighth operating condition.

5. The fan speed adjustment method according to claim 3, characterized in that, The target operating condition includes at least one of the following: a first operating condition, a second operating condition, a third operating condition, a fourth operating condition, a fifth operating condition, a sixth operating condition, a seventh operating condition, and an eighth operating condition. The step of determining the target correction coefficient from the first mapping relationship based on the target operating condition includes: When the target operating condition is the first operating condition, or the third operating condition, or the fourth operating condition, or the fifth operating condition, the target correction coefficient is determined from the first mapping relationship based on the target operating condition and the current temperature change trend; When the target operating condition is the second operating condition, the first correction coefficient in the first mapping relationship is determined as the target correction coefficient; When the target operating condition is the sixth, seventh, or eighth operating condition, the target correction coefficient is determined from the first mapping relationship based on the current indoor temperature difference.

6. The fan speed adjustment method according to claim 5, characterized in that, The current temperature change trend includes a first trend of a slower rate of temperature decrease, a second trend of a faster rate of temperature decrease, a third trend of a faster rate of temperature increase, and a fourth trend of a slower rate of temperature increase. When the target operating condition is the first, third, fourth, or fifth operating condition, determining the target correction coefficient from the first mapping relationship based on the target operating condition and the current temperature change trend includes: When the target operating condition is the first operating condition and the current temperature change trend is the first trend, the second correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the first operating condition and the current temperature change trend is the second trend, the third correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the first operating condition and the current temperature change trend is the third trend, the fourth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the first operating condition and the current temperature change trend is the fourth trend, the fifth correction coefficient in the first mapping relationship is determined as the target correction coefficient; wherein, the third correction coefficient > the second correction coefficient > the fifth correction coefficient > the fourth correction coefficient; When the target operating condition is the third operating condition and the current temperature change trend is the first trend or the fourth trend, the sixth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the third operating condition and the current temperature change trend is the second trend, the seventh correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the third operating condition and the current temperature change trend is the third trend, the eighth correction coefficient in the first mapping relationship is determined as the target correction coefficient; wherein, the seventh correction coefficient > the sixth correction coefficient > the eighth correction coefficient; When the target operating condition is the fourth operating condition and the current temperature change trend is the first trend, the ninth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fourth operating condition and the current temperature change trend is the second trend, the tenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fourth operating condition and the current temperature change trend is the third trend, the eleventh correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fourth operating condition and the current temperature change trend is the fourth trend, the twelfth correction coefficient in the first mapping relationship is determined as the target correction coefficient; wherein, the tenth correction coefficient > the ninth correction coefficient > the twelfth correction coefficient > the eleventh correction coefficient; When the target operating condition is the fifth operating condition and the current temperature change trend is the first trend or the fourth trend, the third correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fifth operating condition and the current temperature change trend is the second trend, the fourteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; when the target operating condition is the fifth operating condition and the current temperature change trend is the third trend, the fifteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; wherein, the fifteenth correction coefficient > the thirteenth correction coefficient > the fourteenth correction coefficient.

7. The fan speed adjustment method according to claim 5, characterized in that, The current temperature change trend includes a first trend of a slower rate of temperature decrease, a second trend of a faster rate of temperature decrease, a third trend of a faster rate of temperature increase, and a fourth trend of a slower rate of temperature increase. When the target operating condition is the sixth, seventh, or eighth operating condition, determining the target correction coefficient from the first mapping relationship based on the current indoor temperature difference includes: When the current temperature change trend is the first trend, the sixteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; When the current temperature change trend is the second trend, the seventeenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; When the current temperature change trend is the third trend, the eighteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; When the current temperature change trend is the fourth trend, the nineteenth correction coefficient in the first mapping relationship is determined as the target correction coefficient; wherein, the eighteenth correction coefficient > the nineteenth correction coefficient > the sixteenth correction coefficient > the seventeenth correction coefficient.

8. The fan speed adjustment method according to claim 1, characterized in that, The adjustment of the fan speed based on the target correction coefficient includes: The first speed adjustment value is obtained based on the target correction coefficient, the current indoor temperature difference, and the reference speed value; The fan speed is adjusted according to the first speed adjustment value.

9. A fan speed adjustment device, characterized in that, The fan speed adjustment device includes: The acquisition module is used to acquire the current temperature change trend, the current indoor temperature difference, and the current operating frequency of the compressor; The determination module is used to determine the target correction coefficient based on the current temperature change trend, the current indoor temperature difference, and the current operating frequency; The adjustment module is used to adjust the fan speed based on the target correction coefficient.

10. A computer-readable storage medium, characterized in that, The device stores a computer program that, when executed by a processor, causes the processor to perform the steps of the method as described in any one of claims 1 to 8.

11. An air conditioner, characterized in that, It includes a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the steps of the method as described in any one of claims 1 to 8.

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