Control method, device and equipment for duct type air conditioner and air conditioner and medium

Abstract

The invention discloses a duct type air conditioner, a control method, device and equipment of an air conditioner and a medium. The ducted air conditioner comprises a shell, a volute, a centrifugal fan and a flow guide cover plate, the shell is provided with a side air outlet and a lower air outlet, the volute is arranged in the shell, an outlet of the volute is communicated with the two air outlets, the centrifugal fan is arranged in the volute, and the flow guide cover plate is arranged at the outlet of the volute and matched with the volute to be arranged around the periphery of the centrifugal fan. And the driving assembly is connected with the flow guide cover plate so as to drive the flow guide cover plate to rotate in the circumferential direction, and the flow area of the two air outlet channels is adjusted. The temperature difference and the humidity difference are calculated by obtaining temperature and humidity, the comprehensive adjusting amount is determined by using a preset temperature and humidity coupling algorithm, and the target cover plate angle is determined by combining the operation mode to control the flow guide cover plate to rotate. According to the air conditioner, adjustable distribution of the double-air-outlet air flow proportion is achieved, the indoor air state requirement is met, the problems that cold and heat distribution is not uniform and humidity changes cannot be responded are solved, and comfort is improved.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, and in particular to a ducted air conditioner, a control method, device, equipment and medium for air conditioners. Background Technology

[0002] As a core device in indoor air conditioning, the rationality of the airflow organization in ducted air conditioners directly determines user comfort. Most existing ducted air conditioners employ a single-direction side-discharge structure. After being pressurized by the fan and heat-exchanged by the heat exchanger, the airflow is directly delivered into the room along a fixed side-discharge direction. However, this fixed outlet structure generally suffers from uneven indoor air distribution in actual cooling and heating applications. Specifically, in cooling mode, the denser cold air mainly flows along the area near the ceiling and has difficulty diffusing into the lower part of the room, resulting in a significantly slower cooling rate in the lower part of the room compared to the upper part. Conversely, in heating mode, the less dense hot air tends to accumulate in the upper part of the room and cannot quickly cool down. The air sinks to the ground, causing the ground area to heat up very slowly, ultimately creating a significant temperature difference between the upper and lower parts of the room, severely reducing user comfort. To improve the aforementioned poor airflow organization, some existing ducted air conditioning products choose to add air guides at the end air outlets, attempting to change the airflow direction by adjusting the angle of the air guides. However, because the air guides are located far from the fan, the airflow has already formed strong inertia by the time it reaches the end air outlet. This makes the air guides very limited in their ability to adjust the mainstream airflow direction, making it difficult to fundamentally solve the problem of uneven indoor air distribution. At the same time, the additional air guides also increase wind resistance during airflow, leading to a new problem of increased equipment operating noise. Summary of the Invention

[0003] This invention provides a control method, device, equipment, and medium for ducted air conditioners and air purifiers, aiming to solve the problem of uneven heat and cold distribution caused by the single air outlet direction of existing ducted air conditioners.

[0004] In a first aspect, embodiments of the present invention provide a duct air handling unit, comprising: The housing has a side air outlet and a bottom air outlet. The side air outlet is located on the side of the housing in the horizontal direction, and the bottom air outlet is located on the lower surface of the housing in the vertical direction. A volute is disposed inside the housing, and the outlet of the volute is connected to the side air outlet and the bottom air outlet respectively; A centrifugal fan is located inside the volute casing; A flow guide cover is provided at the outlet of the volute and is arranged around the outer periphery of the centrifugal fan in cooperation with the volute. A side air outlet channel is formed between the upper side of the flow guide cover and the upper side of the volute, which communicates with the side air outlet. A lower air outlet channel is formed between the lower side of the flow guide cover and the lower side of the volute, which communicates with the lower air outlet. A drive assembly, connected to the guide cover, is used to drive it to rotate circumferentially around the centrifugal fan to adjust the flow area of ​​the side air outlet channel and the lower air outlet channel.

[0005] Secondly, the present invention also provides a control method for an air conditioner, the air conditioner including a ducted unit as described in the first aspect, the method comprising: The system acquires indoor temperature and indoor humidity, determines a temperature difference based on the indoor temperature and a set temperature, and determines a humidity difference based on the indoor humidity and a set humidity. A comprehensive adjustment amount is determined based on the temperature difference and the humidity difference using a preset temperature and humidity coupling algorithm. The comprehensive adjustment amount is used to characterize the degree of deviation of the current air condition. The target cover angle is determined based on the current operating mode and the comprehensive adjustment amount. The drive assembly is then controlled to rotate the guide cover according to the target cover angle. The cover angle is the angle formed between the lower side of the guide cover and the lower side of the volute.

[0006] Thirdly, the present invention also provides a control device for an air conditioner, including a unit for performing the above-described method.

[0007] Fourthly, embodiments of the present invention also provide a computer device, the computer device including a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the above-described method.

[0008] Fifthly, embodiments of the present invention also provide a computer-readable storage medium storing a computer program that, when executed by a processor, can implement the above-described method.

[0009] This invention provides a control method, device, equipment, and medium for ducted air conditioners and air duct units. The invention utilizes a volute housing within the duct unit's casing, connecting a side air outlet and a bottom air outlet. A guide plate, cooperating with the volute housing and surrounding the periphery of a centrifugal fan, is installed at the outlet of the volute housing. The guide plate and the upper and lower sides of the volute housing respectively form a side air outlet channel connecting the side air outlet and a bottom air outlet channel. A drive assembly connected to the guide plate drives it to rotate circumferentially around the centrifugal fan, thereby flexibly adjusting the flow area of ​​the side and bottom air outlet channels. This breaks the structural limitation of existing ducted air conditioners with only side air outlets in one direction. The flow direction of the side and bottom air outlets can be changed by adjusting the circumferential rotation angle of the guide plate according to different operating conditions such as cooling and heating. The airflow distribution ratio allows for flexible control of the air outlet direction and distribution. During cooling, the flow area of ​​the side air outlet can be increased to achieve top-mounted side air outlet, allowing the cool air to diffuse evenly along the ceiling and naturally sink, preventing the cool air from concentrating at the top and causing slow cooling in the lower area. During heating, the flow area of ​​the bottom air outlet can be increased to achieve downward air outlet, allowing the hot air to be directly delivered to the ground and naturally rise, preventing the hot air from accumulating at the top and causing slow heating in the ground area. From a structural perspective, this achieves flexible control of the air outlet direction and airflow distribution, effectively solving the problems of uneven indoor heat and cold distribution and significant temperature differences between the top and bottom caused by the single air outlet direction in existing ducted air conditioners. Ultimately, it achieves the effects of optimizing indoor airflow organization, improving the uniformity of indoor temperature distribution, and improving user comfort. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of the ductwork unit according to an embodiment of the present invention; Figure 2 This is a schematic cross-sectional view of the ductwork unit in the third position according to an embodiment of the present invention; Figure 3 This is a partial cross-sectional structural diagram of the ductwork machine according to an embodiment of the present invention; Figure 4 This is a schematic cross-sectional view of the ductwork unit in the first position according to an embodiment of the present invention; Figure 5 This is a schematic cross-sectional view of the ductwork unit in the second position according to an embodiment of the present invention. Figure 6 This is a flowchart illustrating the steps of the air conditioner control method according to an embodiment of the present invention; Figure 7 for Figure 6 A flowchart illustrating the sub-steps of S130; Figure 8 for Figure 6 A flowchart illustrating another sub-step of S130; Figure 9 This is a schematic block diagram of the control device for an air conditioner according to an embodiment of the present invention; Figure 10 A schematic block diagram of a computer device provided in an embodiment of the present invention; Figure label: 1. Housing; 11. Side air outlet; 12. Bottom air outlet; 13. Air inlet; 14. Side air outlet duct; 15. Bottom air outlet duct; 2. Volute; 21. Upper side of volute; 22. Lower side of volute; 23. Outlet of volute; 3. Centrifugal fan; 4. Guide plate; 41. Upper side of guide plate; 42. Lower side of guide plate; 5. Flexible seal; 6. Filter screen; 7. Evaporator. Detailed Implementation

[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0014] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0015] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0016] As used in this specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0017] As a commonly used indoor air conditioning device, the airflow organization design of ducted air conditioners directly affects the uniformity of indoor temperature distribution and user comfort. Existing ducted air conditioners have obvious technical limitations in their air outlet structure design, generally adopting a single-direction side-discharge structure. After the airflow is heated by the fan and heat exchanger, it can only be delivered into the room along a fixed side-discharge direction. Due to the difference in density between cold and hot air, in cooling mode, cold air tends to flow near the ceiling and has difficulty diffusing to the lower part of the room, resulting in a significantly slower cooling rate in the lower part of the room than in the upper part. In heating mode, hot air tends to accumulate in the upper space of the room and cannot quickly sink to the ground, causing the ground area to heat up slowly. Ultimately, this results in a significant temperature difference between the upper and lower parts of the room. This problem of uneven distribution of cold and heat caused by the single air outlet direction seriously reduces the conditioning effect of ducted air conditioners and the user's physical comfort.

[0018] In addition to the aforementioned issues at the airflow organization level, existing ducted air conditioners also have significant design flaws in their operational control logic. They struggle to simultaneously address the need for coordinated regulation of indoor temperature and humidity. They generally rely solely on indoor temperature as the primary control criterion, adjusting fan volume or equipment operation based on the deviation between the actual and set indoor temperatures. They completely fail to implement targeted control strategies for changes in indoor humidity. In high-humidity environments, temperature regulation alone cannot effectively reduce humidity, leading to stuffy and sluggish indoor air. In low-humidity environments, they cannot replenish humidity through regulation, resulting in dry indoor air and user discomfort. This shortcoming in simultaneously responding to temperature and humidity changes makes ducted air conditioners unsuitable for different temperature and humidity combinations, failing to create a comfortable indoor space with suitable temperature and humidity for users, further limiting the user experience and applicable scenarios of ducted air conditioners.

[0019] To address this, this invention proposes a control method, device, equipment, and medium for ducted air conditioners and ventilators. By using a dual-outlet housing, a rotatable air guide cover, and a drive assembly, it breaks the limitation of a single air outlet, flexibly adjusting the flow area of ​​the side and bottom air outlet channels to adapt to heating and cooling conditions. Furthermore, by acquiring the temperature and humidity difference and determining the comprehensive adjustment amount through a coupling algorithm, it accurately matches the current operating conditions to determine the target cover angle and drives the air guide cover to rotate. The two work together to solve the problem of uneven heat and cold distribution caused by a single air outlet direction and achieve synchronous response to temperature and humidity changes, ultimately optimizing airflow organization, improving indoor temperature and humidity uniformity, and enhancing user comfort. Details are as follows: To facilitate understanding of the embodiments of the present invention, the structure of the air conditioner will be described first.

[0020] Reference Figure 1-5 In some embodiments, the ducted air conditioner includes: a housing 1, a volute 2, a centrifugal fan 3, a flow guide plate 4, a filter screen 6, and an evaporator 7. The housing 1 has a side air outlet 11 and a bottom air outlet 12. The side air outlet 11 is located on the horizontal side of the housing 1, and the bottom air outlet 12 is located on the vertical lower surface of the housing 1. The volute 2 is located inside the housing 1, and its outlet 23 connects to the side air outlet 11 and the bottom air outlet 12, respectively. The centrifugal fan 3 is located inside the volute 2. The flow guide plate 4 is located at the outlet 23 of the volute and cooperates with the volute 2 to surround the housing 1. The centrifugal fan 3 is provided with a side air outlet channel 14 connecting the side air outlet 11 between the upper side 41 of the guide cover and the upper side 21 of the volute, and a lower air outlet channel 15 connecting the lower air outlet 12 between the lower side 42 of the guide cover and the lower side 22 of the volute; a drive assembly is connected to the guide cover and is used to drive it to rotate around the centrifugal fan 3 to adjust the flow area of ​​the side air outlet channel 14 and the lower air outlet channel 15.

[0021] Specifically, the housing 1 serves as the external support structure of the duct unit, and its shape is designed to form a stable air duct space. The housing 1 has a side air outlet 11 on the horizontal side and a bottom air outlet 12 on the vertical bottom surface. In addition, the housing 1 also includes an air inlet 13, and a filter screen 6 for filtering dust and impurities in the air is provided at the air inlet 13. An evaporator 7 is also provided inside the housing 1 near the air inlet 13. The evaporator 7 is arranged at an angle to optimize heat exchange efficiency.

[0022] The volute 2 is an arc-shaped airflow guiding structure, which is fixedly installed in the accommodating space of the housing 1. Its outlets extend and connect to the side air outlet 11 and the bottom air outlet 12 respectively, and are used to guide the direction of airflow. The centrifugal fan 3 is located inside the volute and is arranged radially toward the side air outlet 11 and the bottom air outlet 12. It adopts the working mode of axial air intake and radial air exhaust, and pressurizes the air and sends it out.

[0023] The guide cover 4 is located at the outlet 23 of the volute and, together with the volute 2, surrounds the outer periphery of the centrifugal fan 3. The curvature of the guide cover 4 matches the curvature of the volute 2. Viewed from the side section, the volute 2 and the guide cover 4 form a non-closed annular structure with two notches. The notch between the upper side 41 of the guide cover 4 and the upper side 21 of the volute forms a side air outlet channel 14 that connects to the side air outlet 11. The notch between the lower side 42 of the guide cover 4 and the lower side 22 of the volute forms a lower air outlet channel 15 that connects to the lower air outlet 12. The guide cover 4 can rotate circumferentially around the outer periphery of the centrifugal fan 3 in a clockwise or counterclockwise direction. When rotating, the flow area of ​​the side air outlet channel 14 and the lower air outlet channel 15 changes in a relationship of one increasing and the other decreasing. That is, when the guide cover 4 rotates upward, the flow area of ​​the side air outlet channel 14 decreases, and the flow area of ​​the lower air outlet channel 15 increases simultaneously. When the guide cover 4 rotates downward, the flow area of ​​the lower air outlet channel 15 decreases, and the flow area of ​​the side air outlet channel 14 increases simultaneously. The flow areas of the side air outlet channel 14 and the lower air outlet channel 15 always maintain a relationship of one increasing and one decreasing.

[0024] A drive assembly (not shown in the figure) is connected to the guide plate 4 and is used to drive the guide plate 4 to rotate circumferentially. This drive assembly can adopt various structural forms, such as a worm gear mechanism. This mechanism includes a meshing worm and a worm wheel. The worm is coaxially connected to the output shaft of the drive motor, and the worm wheel is coaxially fixed on the rotational central axis of the guide plate 4, which coincides with the central axis of the centrifugal fan 3. This central axis is rotatably supported at a corresponding position on the volute housing by bearings. The guide plate 4 is fixedly connected to the worm wheel. When the drive motor starts, it drives the worm to rotate, transmitting power to the worm wheel through tooth meshing. This causes the worm wheel to drive the guide plate 4 to rotate clockwise or counterclockwise around the centrifugal fan 3. By controlling the forward and reverse rotation of the motor and the rotation angle, the angle of the guide plate can be precisely adjusted, achieving precise control of the airflow area of ​​the outlet channel. The worm gear mechanism has a self-locking characteristic, preventing the guide plate from shifting due to airflow impact when there is no power input, ensuring its angle stability. The flow area of ​​the two channels is adjusted by controlling the rotation angle of the guide cover. During the adjustment process, the angle formed between the radial extension line passing through the lower side of the volute and the radial extension line passing through the lower side of the guide cover, with the centrifugal fan 3 as the center, is defined as the cover angle. The size of this cover angle directly reflects the opening degree of the lower air outlet channel 15 and the side air outlet channel 14. The drive component controls the rotation of the guide cover according to the cover angle. The smaller the cover angle, the smaller the flow area of ​​the lower air outlet channel 15 and the larger the flow area of ​​the side air outlet channel 14. Conversely, the larger the cover angle, the larger the flow area of ​​the lower air outlet channel 15 and the smaller the flow area of ​​the side air outlet channel 14.

[0025] Specifically, this structural design alters the airflow distribution ratio at the volute outlet through the circumferential rotation of the guide cover 4, breaking the limitations of the traditional single air outlet direction. This solves the technical problem of uneven indoor temperature distribution caused by the single air outlet direction in existing ducted air conditioners, which makes it difficult for cold air to descend during cooling and hot air to reach the surface during heating. By flexibly controlling the rotation angle of the guide cover through the drive component, the ducted air conditioner can dynamically adjust the ratio of side and bottom air outlets according to actual needs, achieving optimized airflow organization and thus improving the uniformity of indoor temperature distribution and user comfort.

[0026] In one embodiment, the guide cover 4 has a first position, where the upper side 41 of the guide cover and the upper side 21 of the volute are close to each other, the side air outlet channel 14 is closed, and the flow area of ​​the lower air outlet channel 15 is maximized; the guide cover 4 has a second position, where the lower side 42 of the guide cover and the lower side 22 of the volute are close to each other, the lower air outlet channel 15 is closed, and the flow area of ​​the side air outlet channel 14 is maximized; the guide cover 4 has a third position, where a gap is left between the upper side 41 of the guide cover and the upper side 21 of the volute, and between the lower side 42 of the guide cover and the lower side 22 of the volute, and both the side air outlet channel 14 and the lower air outlet channel 15 are open.

[0027] Specifically, such as Figure 4 As shown, the guide cover 4 has a specific position during circumferential rotation to adapt to different air supply requirements. The guide cover 4 has a first position. When the guide cover 4 rotates to this first position, its upper side is in contact with or close to the upper side 21 of the volute. At this time, the side air outlet 14 is closed, and the airflow cannot flow out from the side air outlet 11, while the flow area of ​​the lower air outlet 15 reaches its maximum, which is suitable for scenarios that require maximum downward air supply.

[0028] like Figure 5 As shown, the guide cover 4 also has a second position. When the guide cover 4 is rotated to the second position, its lower side is in contact with or close to the lower side 22 of the volute. At this time, the lower air outlet 15 is closed, and all the airflow is directed to the side air outlet 11. The flow area of ​​the side air outlet 14 reaches the maximum, which is suitable for scenarios that require the maximum horizontal air supply.

[0029] In addition, such as Figure 2 As shown, the guide cover 4 also has a third position. When the guide cover 4 is rotated to the third position, there is a gap between the upper side 41 of the guide cover and the upper side 21 of the volute, and between the lower side 42 of the guide cover and the lower side 22 of the volute, so that the side air outlet 14 and the lower air outlet 15 are kept open at the same time, and the airflow is blown out from the side air outlet 11 and the lower air outlet 12 at the same time, forming a mixed air supply mode.

[0030] Specifically, by setting the first, second, and third positions, the air guide cover 4 can switch between three modes: fully open bottom air outlet, fully open side air outlet, and mixed air outlet, thereby precisely controlling the airflow distribution direction and solving the problem of different adjustment needs for air outlet direction under different operating conditions. Through this multi-position setting, the ducted air conditioner can flexibly cope with different airflow characteristics of cooling and heating, achieving precise control of the flow direction of hot and cold air, and thus effectively solving the problem of uneven indoor airflow distribution.

[0031] In one embodiment, the duct machine further includes a flexible seal 5, which is disposed on the upper side 41 and / or the lower side of the guide cover; the flexible seal 5 is disposed on the upper side 21 and / or the lower side of the volute.

[0032] Specifically, to improve the sealing performance of the guide cover during rotation and reduce aerodynamic noise, the duct unit also includes a flexible seal 5. The flexible seal 5 can be positioned flexibly, depending on assembly requirements and sealing needs. It can be positioned on the upper side 41 of the guide cover, the lower side 42, or both simultaneously. Furthermore, the flexible seal 5 can also be positioned on the upper side 21 of the volute, the lower side 22, or both simultaneously. The flexible seal 5 can fill the minute gap between the guide cover and the volute. Specifically, by setting the flexible seal 5 on the contact surface between the guide cover and the volute, when the guide cover rotates to its first or second extreme position, the flexible seal 5 can be deformed under pressure, thereby eliminating the gap and solving the problems of air leakage, airflow whistling, and reduced airflow regulation accuracy caused by gaps in the guide cover when blocking the air outlet channel. The buffering and sealing effect of the flexible seal 5 not only enhances the sealing performance when switching between different air outlet modes, but also effectively reduces the noise generated by airflow during fan operation, thereby improving the overall quietness and reliability of the duct unit.

[0033] Please see Figure 6 , Figure 6 This is a flowchart illustrating the steps of a control method for an air conditioner provided in an embodiment of the present invention. The method is applied to an air conditioner including the ducted unit described in the above embodiments, which has been described in detail above; for the sake of brevity, it will not be repeated here. The method includes steps S110-S130.

[0034] S110. Obtain indoor temperature and indoor humidity, determine temperature difference based on indoor temperature and set temperature, and determine humidity difference based on indoor humidity and set humidity; In this embodiment, the set temperature is the indoor temperature target value preset according to the duct air conditioner's operating mode and user needs, the set humidity is the indoor humidity target value preset according to the duct air conditioner's operating mode and user needs, the temperature difference is the difference between the actual indoor temperature and the set temperature, and the humidity difference is the difference between the actual indoor humidity and the set humidity. Both are used to intuitively reflect the deviation of the indoor temperature and humidity from the target values.

[0035] Specifically, the ducted air conditioner's control system first collects real-time indoor temperature data via temperature sensors and real-time indoor humidity data via humidity sensors. The sensors transmit the collected temperature and humidity electrical signals to the control system's processing module. Next, the processing module performs analog-to-digital conversion on the received electrical signals, converting them into calculable indoor temperature and humidity values. Then, the processing module retrieves pre-stored set temperature and humidity values ​​from the system, calculates the difference between the indoor temperature and the set temperature to obtain the corresponding temperature difference, and simultaneously calculates the difference between the indoor humidity and the set humidity to obtain the corresponding humidity difference. During the calculation process, the positive and negative attributes of the temperature and humidity differences are retained to indicate the direction of deviation. Finally, the processing module temporarily stores the calculated temperature and humidity differences to provide a data foundation for subsequent coupled calculations. In essence, this step achieves real-time acquisition of indoor temperature and humidity by setting up temperature and humidity sensors, abandoning the single detection method of existing technologies that only collect temperature data. Simultaneously, by calculating the deviations of temperature and humidity through difference calculations, it solves the technical problem that existing ducted air conditioners cannot simultaneously sense changes in indoor temperature and humidity, and cannot accurately determine the overall deviation of air conditions. This step enables the synchronous detection and quantification of changes in indoor temperature and humidity, allowing the control system to fully perceive the indoor air condition and providing accurate and comprehensive basic data for subsequent integrated adjustments, thereby improving the accuracy of the ducted air conditioner's judgment of the indoor air condition.

[0036] S120. Based on the temperature difference and the humidity difference, a comprehensive adjustment amount is determined using a preset temperature and humidity coupling algorithm. The comprehensive adjustment amount is used to characterize the degree of deviation of the current air state. In this embodiment, the preset temperature and humidity coupling algorithm is a comprehensive calculation logic pre-embedded in the control system. This algorithm comprehensively considers the influence weights of temperature difference and humidity difference on indoor air state and performs calculations. The comprehensive adjustment amount is the calculation result of the preset temperature and humidity coupling algorithm, which is used to comprehensively characterize the overall deviation of indoor air state from the target state.

[0037] Specifically, the control system's processing module first retrieves the previously stored temperature and humidity differences, along with pre-calibrated temperature and humidity weights. These weights are set based on the impact of temperature and humidity on human comfort and airflow distribution under different operating modes. Second, the processing module uses a pre-defined temperature and humidity coupling algorithm to combine the temperature and humidity differences with their corresponding weights, transforming two individual deviation indicators into a single comprehensive indicator through weighted fusion. The processing module then completes the calculation and obtains the final comprehensive adjustment value. This value is positively correlated with the overall deviation of the air condition; a larger value indicates a more severe deviation between the indoor air condition and the target condition. Finally, the processing module stores the calculated comprehensive adjustment value to provide a basis for subsequent cover angle adjustments. In essence, this step uses a pre-defined temperature and humidity coupling algorithm to perform weighted comprehensive calculations on the temperature and humidity differences, fusing two individual deviation indicators into a single comprehensive indicator. This solves the technical problem of existing technologies that rely solely on temperature differences for regulation, ignoring the impact of humidity on air conditions, leading to an inability to accurately determine the overall deviation of indoor air conditions and resulting in a lack of targeted regulation. This step enables a comprehensive quantification of indoor temperature and humidity deviations, allowing the control system to adjust based on the overall degree of air quality deviation, rather than solely on temperature changes. This improves the targeting and rationality of ducted air conditioner control, making the control strategy more aligned with the actual indoor air quality requirements.

[0038] In one embodiment, S120 includes: S121-S122.

[0039] S121. Obtain the preset temperature weight and preset humidity weight; S122. Determine the temperature adjustment amount based on the temperature difference and the preset temperature weight, determine the humidity adjustment amount based on the humidity difference and the preset humidity weight, and determine the comprehensive adjustment amount based on the sum of the temperature adjustment amount and the humidity adjustment amount.

[0040] Specifically, firstly, the control system's processing module retrieves pre-stored preset temperature and humidity weights. These weights are pre-calibrated based on the impact of temperature and humidity on indoor air quality and human comfort under different operating modes, and can be adapted to the climate characteristics and user needs of the actual usage scenario. Secondly, the processing module calculates the previously obtained temperature difference with the preset temperature weight to obtain a temperature adjustment amount that reflects the degree of influence of temperature deviation. Simultaneously, it calculates the humidity difference with the preset humidity weight to obtain a humidity adjustment amount that reflects the degree of influence of humidity deviation. Subsequently, the processing module sums the calculated temperature and humidity adjustment amounts to obtain a comprehensive adjustment amount. The magnitude of this comprehensive adjustment amount is positively correlated with the overall degree of deviation of indoor air quality from the target state, and can comprehensively characterize the deviation of air quality under the combined effect of temperature and humidity, providing a precise basis for subsequent adjustment of the guide cover angle.

[0041] For example, in cooling mode, the preset temperature weight is 0.6 and the preset humidity weight is 0.4. When the detected temperature difference is 5 and the humidity difference is 4, the temperature adjustment is first calculated as 5 × 0.6 = 3 and the humidity adjustment is calculated as 4 × 0.4 = 1.6. Then, the two are summed to obtain the comprehensive adjustment as 3 + 1.6 = 4.6. This value directly reflects the overall deviation of the current indoor air under the combined influence of temperature and humidity. In heating mode, the preset temperature weight can be adjusted to 0.7 and the preset humidity weight to 0.3. If the temperature difference is 4 and the humidity difference is 3, the calculated temperature adjustment is 2.8 and the humidity adjustment is 0.9, with a comprehensive adjustment of 3.7. This adapts to the air condition adjustment needs where temperature dominates in heating mode.

[0042] This step enables weighted quantification and comprehensive calculation of temperature and humidity deviations, allowing the overall adjustment to fully and accurately reflect the degree of deviation of the indoor air condition. It eliminates the limitations of relying solely on temperature deviation to judge the air condition, providing a basis for subsequent air outlet angle adjustment that is in line with the actual air condition. This improves the targeting and rationality of duct air conditioner control, allowing the airflow adjustment strategy to adapt to changes in both temperature and humidity.

[0043] S130. Determine the target cover angle based on the current operating mode and the comprehensive adjustment amount, and control the drive assembly to drive the guide cover to rotate based on the target cover angle, wherein the cover angle is the angle formed between the lower side of the guide cover and the lower side of the volute.

[0044] In this embodiment, the current operating mode includes cooling mode and heating mode, which are selected by the user through the duct machine's operating terminal or automatically matched by the system. The target cover angle is the optimal rotation angle of the guide cover calculated based on the current operating mode and the comprehensive adjustment amount.

[0045] In this embodiment, the target cover angle refers to the final position angle to which the drive assembly needs to rotate the guide cover. This angle directly determines the opening ratio of the side air outlet and the bottom air outlet.

[0046] Specifically, the cover angle is defined as the angle formed between the lower side of the guide cover and the lower side of the volute. First, the controller identifies the current operating mode of the ducted air conditioner, such as cooling or heating mode. Then, the system calls the corresponding angle mapping strategy based on the current operating mode, mapping the calculated overall adjustment amount to a specific target cover angle. For example, in cooling mode, if the overall adjustment amount is large, a smaller target cover angle is determined to prioritize opening the side air outlet; if the overall adjustment amount is small, a larger target cover angle is determined to increase the proportion of downward air outlets. After determining the target cover angle, the controller sends a control command to the drive assembly, which drives the guide cover to rotate until the angle between its lower side and the lower side of the volute reaches the target cover angle. Specifically, this step solves the problem in existing ducted air conditioners where the air outlet direction cannot be automatically adjusted according to the overall temperature and humidity conditions, leading to uneven heat and cold distribution. By precisely controlling the rotation angle of the guide cover based on the overall adjustment amount and operating mode, the system can dynamically optimize airflow distribution. Through this closed-loop control, the ducted air conditioner can achieve the optimal airflow organization under different temperature and humidity environments, effectively improving the user's physical comfort.

[0047] In one embodiment, such as Figure 7 If the current operating mode is cooling mode, step S130 includes: S131-S133.

[0048] S131. Determine whether the comprehensive adjustment amount is less than or equal to the first preset adjustment amount threshold; if so, determine the target cover plate angle as the first preset maximum cover plate angle, and control the drive component to drive the guide cover plate to rotate to the first preset maximum cover plate angle. S132. Determine whether the comprehensive adjustment amount is greater than the first preset adjustment amount threshold and less than the second preset adjustment amount threshold; if so, determine the target cover plate angle by linear interpolation based on the comprehensive adjustment amount, and control the drive component to drive the guide cover plate to rotate based on the target cover plate angle, wherein the second preset adjustment amount threshold is greater than the first preset adjustment amount threshold. S133. Determine whether the comprehensive adjustment amount is greater than or equal to the second preset adjustment amount threshold. If so, determine the target cover plate angle as the first preset minimum cover plate angle, and control the drive component to drive the guide cover plate to rotate to the first preset minimum cover plate angle.

[0049] In this embodiment, the first preset adjustment amount threshold is the comprehensive adjustment amount critical value for determining that the air state is close to the target state in the refrigeration mode, the second preset adjustment amount threshold is the comprehensive adjustment amount critical value for determining that the air state deviates greatly from the target state in the refrigeration mode, and the second preset adjustment amount threshold is greater than the first preset adjustment amount threshold. The first preset maximum cover plate angle is the maximum angle value that the diversion cover plate can be adjusted in the refrigeration mode, and the first preset minimum cover plate angle is the minimum angle value that the diversion cover plate can be adjusted in the refrigeration mode.

[0050] Specifically, first, after the control system determines that the current operating mode is the refrigeration mode, it retrieves the preset first preset adjustment amount threshold, second preset adjustment amount threshold, first preset maximum cover plate angle, and first preset minimum cover plate angle, and at the same time retrieves the previously calculated comprehensive adjustment amount. Secondly, it first judges whether the comprehensive adjustment amount is less than or equal to the first preset adjustment amount threshold. If so, it determines that the current indoor air state is close to the refrigeration target state, determines the target cover plate angle as the first preset maximum cover plate angle, and controls the drive component to drive the diversion cover plate to rotate to this angle. At this time, the flow area of the lower air outlet channel is in a relatively large state, and the flow area of the side air outlet channel is in a relatively small state, realizing a gentle side air outlet combined with a partial lower air outlet air flow distribution. If the comprehensive adjustment amount does not meet the above conditions, then it judges whether it is greater than the first preset adjustment amount threshold and less than the second preset adjustment amount threshold. If so, it determines that there is a medium deviation between the current indoor air state and the refrigeration target state, calculates and determines the corresponding target cover plate angle by linear interpolation according to the comprehensive adjustment amount, and controls the drive component to drive the diversion cover plate to rotate to this angle. At this time, the flow areas of the side air outlet channel and the lower air outlet channel are proportionally distributed in an adaptive manner, taking into account both the refrigeration efficiency and the indoor air flow uniformity. If the comprehensive adjustment amount still does not meet the above conditions, then it judges whether it is greater than or equal to the second preset adjustment amount threshold. If so, it determines that the deviation degree between the current indoor air state and the refrigeration target state is relatively large, and the refrigeration demand is relatively high. It determines the target cover plate angle as the first preset minimum cover plate angle, and controls the drive component to drive the diversion cover plate to rotate to this angle. At this time, the flow area of the side air outlet channel reaches the maximum, and the flow area of the lower air outlet channel reaches the minimum, realizing a strong side air outlet air flow distribution, allowing the cold air to spread along the ceiling close to the top, and improving the cooling speed of the far-end area in the room.

[0051] Exemplarily, set the first preset adjustment amount threshold as S1, the second preset adjustment amount threshold as S2, the first preset maximum cover plate angle as θmax, and the first preset minimum cover plate angle as θmin. When the comprehensive adjustment amount S≤S1, the target cover plate angle is θmax; when S1<S<S2, through the formula Calculate the target cover angle; when S≥S2, the target cover angle is θmin. If S1=2, S2=6, θmax=40°, θmin=10°, when S=3, the target cover angle is calculated to be 32.5°. The guide cover rotates to this angle to achieve the corresponding airflow distribution.

[0052] By executing this step, the target angle of the air guide cover is precisely matched according to different ranges of the comprehensive adjustment in the cooling mode. This allows the airflow distribution of the ducted air conditioner to be adapted to the actual cooling demand. It can improve the cooling efficiency when the cooling demand is high, and ensure the uniformity of indoor airflow when approaching the cooling target state. It effectively optimizes the indoor airflow organization in the cooling mode, solves the problems of uneven cold air distribution and slow cooling in the lower area when the traditional ducted air conditioner is cooling, and improves the user comfort in the cooling mode.

[0053] In this embodiment, the step of determining the target cover angle based on the comprehensive adjustment amount using linear interpolation is specifically executed as follows: If the current operating mode is cooling mode, obtain the first difference between the comprehensive adjustment amount and the first preset adjustment amount threshold, and the second difference between the second preset adjustment amount threshold and the first preset adjustment amount threshold; calculate the ratio of the first difference to the second difference to obtain the first proportional factor; calculate the difference between the first preset maximum cover angle and the first preset minimum cover angle to obtain the first maximum angle difference; determine the first angle change amount based on the product of the first proportional factor and the first maximum angle difference; determine the target cover angle based on the difference between the first preset maximum cover angle and the first angle change amount.

[0054] Specifically, when the current operating mode is the refrigeration mode and the comprehensive adjustment amount is between the first preset adjustment amount threshold and the second preset adjustment amount threshold, first, the control system retrieves the comprehensive adjustment amount, the first preset adjustment amount threshold, and the second preset adjustment amount threshold, calculates the difference between the comprehensive adjustment amount and the first preset adjustment amount threshold to obtain the first difference, and then calculates the difference between the second preset adjustment amount threshold and the first preset adjustment amount threshold to obtain the second difference; secondly, a first proportionality factor is obtained through the division operation of the first difference and the second difference, which reflects the relative position of the comprehensive adjustment amount within the two threshold intervals. At the same time, the first preset maximum cover plate angle and the first preset minimum cover plate angle are retrieved, and the difference between the two is calculated to obtain the first maximum angle difference, which is the total adjustable range of the cover plate angle in the refrigeration mode; subsequently, the first proportionality factor is multiplied by the first maximum angle difference to obtain the first angle change amount, which is the specific angle value by which the cover plate needs to be adjusted from the first preset maximum cover plate angle to the first preset minimum cover plate angle. Then, the first preset maximum cover plate angle is subtracted by the first angle change amount to calculate the accurate target cover plate angle. Finally, the control system converts the target cover plate angle into a control signal and transmits it to the driving component, and the driving component drives the diversion cover plate to rotate to the target cover plate angle. At this time, the flow areas of the side air outlet channel and the lower air outlet channel are distributed in an adaptive proportion. The closer the comprehensive adjustment amount is to the second preset adjustment amount threshold, the larger the flow area of the side air outlet channel and the smaller the flow area of the lower air outlet channel. The closer the comprehensive adjustment amount is to the first preset adjustment amount threshold, the smaller the flow area of the side air outlet channel and the larger the flow area of the lower air outlet channel, achieving linear and accurate control of the air flow distribution in the refrigeration mode.

[0055] Exemplarily, set the first preset adjustment amount threshold as S1, the second preset adjustment amount threshold as S2, the first preset maximum cover plate angle as θmax, the first preset minimum cover plate angle as θmin, and the comprehensive adjustment amount as S, where S1 < S < S2. First, calculate the first difference as S - S1, the second difference as S2 - S1, the first proportionality factor as (S - S1) / (S2 - S1), the first maximum angle difference as θmax - θmin, and the first angle change amount as , and finally the target cover plate angle , if S1 = 2, S2 = 6, θmax = 40°, θmin = 10°, when S = 3, the first proportionality factor is 0.25, the first angle change amount is 7.5°, and the target cover plate angle is 32.5°. When S = 5, the first proportionality factor is 0.75, the first angle change amount is 22.5°, and the target cover plate angle is 17.5°, achieving a linear correspondence of the cover plate angle under different comprehensive adjustment amounts.

[0056] This step enables linear interpolation calculation of the target cover angle when the overall adjustment amount is within the threshold range in cooling mode. This allows the cover angle to be continuously and smoothly adjusted with changes in the overall adjustment amount, avoiding airflow fluctuations caused by sudden angle changes. It also ensures that the flow ratio of the side air outlet and the bottom air outlet can be accurately matched with changes in indoor cooling demand, guaranteeing cooling efficiency and optimizing the uniformity of indoor airflow organization. This improves the air supply control accuracy of the ducted air conditioner in cooling mode and enhances user comfort.

[0057] In one embodiment, such as Figure 8 If the current operating mode is heating mode, step S130 includes: S134-S136.

[0058] S134. Determine whether the comprehensive adjustment amount is less than or equal to the third preset adjustment amount threshold; if so, determine the target cover plate angle as the second preset minimum cover plate angle, and control the drive component to drive the guide cover plate to rotate to the second preset minimum cover plate angle. S135. Determine whether the comprehensive adjustment amount is greater than the third preset adjustment amount threshold and less than the fourth preset adjustment amount threshold; if so, determine the target cover plate angle by linear interpolation based on the comprehensive adjustment amount, and control the drive component to drive the guide cover plate to rotate based on the target cover plate angle, wherein the fourth preset adjustment amount threshold is greater than the third preset adjustment amount threshold. S136. Determine whether the comprehensive adjustment amount is greater than or equal to the fourth preset adjustment amount threshold; if so, determine the target cover angle as the second preset maximum cover angle, and control the drive component to drive the guide cover to rotate to the second preset maximum cover angle.

[0059] In this embodiment, the third preset adjustment threshold is the comprehensive adjustment threshold value for determining that the air condition is close to the target state in the heating mode, the fourth preset adjustment threshold is the comprehensive adjustment threshold value for determining that the air condition deviates significantly from the target state in the heating mode, and the fourth preset adjustment threshold is greater than the third preset adjustment threshold. The second preset maximum cover angle is the maximum adjustable angle value of the guide cover in the heating mode, and the second preset minimum cover angle is the minimum adjustable angle value of the guide cover in the heating mode.

[0060] Specifically, first, after the control system determines that the current operating mode is the heating mode, it retrieves the pre-set third preset adjustment amount threshold, fourth preset adjustment amount threshold, second preset maximum cover plate angle, and second preset minimum cover plate angle, and at the same time retrieves the previously calculated comprehensive adjustment amount. Secondly, it first judges whether the comprehensive adjustment amount is less than or equal to the third preset adjustment amount threshold. If so, it determines that the current indoor air state is close to the heating target state, determines the target cover plate angle as the second preset minimum cover plate angle, and controls the driving component to drive the diversion cover plate to rotate to this angle. At this time, the flow area of the lower air outlet channel is in a relatively small state, and the flow area of the side air outlet channel is in a relatively large state, realizing a gentle lower air outlet combined with partial side air outlet airflow distribution, and avoiding excessive concentration and sinking of hot air causing local overheating.

[0061] If the comprehensive adjustment amount does not meet the above conditions, then it judges whether it is greater than the third preset adjustment amount threshold and less than the fourth preset adjustment amount threshold. If so, it determines that there is a medium deviation between the current indoor air state and the heating target state, calculates and determines the corresponding target cover plate angle by linear interpolation according to the comprehensive adjustment amount, and controls the driving component to drive the diversion cover plate to rotate to this angle. At this time, the flow areas of the side air outlet channel and the lower air outlet channel are proportionally distributed in an adaptable manner, taking into account the heating efficiency and the uniform diffusion of indoor hot air.

[0062] If the comprehensive adjustment amount still does not meet the above conditions, then it judges whether it is greater than or equal to the fourth preset adjustment amount threshold. If so, it determines that the deviation degree between the current indoor air state and the heating target state is relatively large, and the heating demand is high. It determines the target cover plate angle as the second preset maximum cover plate angle, and controls the driving component to drive the diversion cover plate to rotate to this angle. At this time, the flow area of the lower air outlet channel reaches the maximum, and the flow area of the side air outlet channel reaches the minimum, realizing a strong lower air outlet airflow distribution, allowing hot air to be directly delivered to the ground and naturally rise, quickly raising the temperature of the indoor ground area.

[0063] Exemplarily, set the third preset adjustment amount threshold as S1, the fourth preset adjustment amount threshold as S2, the second preset minimum cover plate angle as θmin, and the second preset maximum cover plate angle as θmax. When the comprehensive adjustment amount S ≤ S1, the target cover plate angle is θmin; when S1 < S < S2, the target cover plate angle is calculated by the formula When S ≥ S2, the target cover plate angle is θmax. If S1 = 2, S2 = 6, θmin = 30°, θmax = 70°, when S = 5, after calculation, the target cover plate angle is 60°. The diversion cover plate rotates to this angle to realize a large proportion of lower air outlet airflow distribution and quickly meet the heating demand.

[0064] By implementing this step, the target angle of the air guide cover is precisely matched according to different ranges of the comprehensive adjustment in the heating mode. This allows the airflow distribution of the ducted air conditioner to be adapted to the actual heating demand. It can quickly increase the floor temperature when the heating demand is high, solving the problem of hot air concentrating at the top and slow floor heating when the traditional ducted air conditioner is heating. It can also ensure the uniform distribution of hot air in the room when the heating target is approached. This effectively optimizes the indoor airflow organization in the heating mode and improves the user comfort in the heating mode.

[0065] In this embodiment, the step of determining the target cover angle based on the comprehensive adjustment amount using linear interpolation is specifically executed as follows: If the current operating mode is heating mode, obtain the third difference between the comprehensive adjustment amount and the third preset adjustment amount threshold, and the fourth difference between the fourth preset adjustment amount threshold and the third preset adjustment amount threshold; calculate the ratio of the third difference to the fourth difference to obtain the second proportional factor; calculate the difference between the second preset maximum cover plate angle and the second preset minimum cover plate angle to obtain the second maximum angle difference; determine the second angle change amount based on the product of the second proportional factor and the second maximum angle difference; determine the target cover plate angle based on the sum of the second preset minimum cover plate angle and the second angle change amount.

[0066] Specifically, when the current operating mode is the heating mode and the comprehensive adjustment amount is between the third preset adjustment amount threshold and the fourth preset adjustment amount threshold, first, the control system retrieves the comprehensive adjustment amount, the third preset adjustment amount threshold, and the fourth preset adjustment amount threshold, calculates the difference between the comprehensive adjustment amount and the third preset adjustment amount threshold to obtain the third difference, and then calculates the difference between the fourth preset adjustment amount threshold and the third preset adjustment amount threshold to obtain the fourth difference; secondly, a second proportionality factor is obtained through the division operation of the third difference and the fourth difference. This factor reflects the relative position of the comprehensive adjustment amount within the two threshold intervals. At the same time, the second preset maximum cover plate angle and the second preset minimum cover plate angle are retrieved, and the difference between the two is calculated to obtain the second maximum angle difference. This difference is the total adjustable range of the cover plate angle in the heating mode; subsequently, the second proportionality factor is multiplied by the second maximum angle difference to obtain the second angle change amount. This value is the specific angle value by which the cover plate needs to be adjusted from the second preset minimum cover plate angle to the second preset maximum cover plate angle. Then, the second preset minimum cover plate angle is added to the second angle change amount to calculate the accurate target cover plate angle. Finally, the control system converts this target cover plate angle into a control signal and transmits it to the drive component. The drive component drives the diversion cover plate to rotate to this target cover plate angle. At this time, the flow areas of the side air outlet channel and the lower air outlet channel are distributed in an adaptive proportion. The closer the comprehensive adjustment amount is to the fourth preset adjustment amount threshold, the larger the flow area of the lower air outlet channel and the smaller the flow area of the side air outlet channel. The closer the comprehensive adjustment amount is to the third preset adjustment amount threshold, the smaller the flow area of the lower air outlet channel and the larger the flow area of the side air outlet channel, achieving linear and accurate control of the air flow distribution in the heating mode.

[0067] Exemplarily, set the third preset adjustment amount threshold as S1, the fourth preset adjustment amount threshold as S2, the second preset minimum cover plate angle as θmin, the second preset maximum cover plate angle as θmax, and the comprehensive adjustment amount as S, where S1 < S < S2. First, calculate the third difference as S - S1, the fourth difference as S2 - S1, the second proportionality factor as (S - S1) / (S2 - S1), the second maximum angle difference as θmax - θmin, and the second angle change amount as , and the final target cover plate angle . If S1 = 2, S2 = 6, θmin = 30°, θmax = 70°, when S = 4, the second proportionality factor is 0.5, the second angle change amount is 20°, and the target cover plate angle is 50°, achieving the air flow distribution with medium proportion of lower air outlet, taking into account the heating efficiency and the uniformity of indoor hot air.

[0068] This step enables linear interpolation calculation of the target cover angle when the overall adjustment amount is within the threshold range in heating mode. This allows the cover angle to be continuously and smoothly adjusted with changes in the overall adjustment amount, avoiding airflow fluctuations caused by sudden angle changes. It also ensures that the flow ratio of the side air outlet and the bottom air outlet can be accurately matched with changes in indoor heating demand. This guarantees the ability to deliver hot air downwards when heating demand increases, and also achieves uniform diffusion of hot air when heating demand is moderate. This effectively optimizes the indoor airflow organization in heating mode and improves the air supply control accuracy and user comfort of the ducted air conditioner in heating mode.

[0069] In one embodiment, step S130 further includes: S137-S139.

[0070] S137. Obtain the current air volume and the target air volume under the current operating conditions, and determine whether the current air volume is greater than the target air volume; S138. If so, the current wind speed state is determined to be a high wind speed state, and the target angle range of the guide cover is narrowed, the step size of a single adjustment of the guide cover is reduced, and the time interval of the adjustment action of the guide cover is increased. S139. If not, the current wind speed state is determined to be a low wind speed state, and the target angle range of the guide cover is widened, the step size of a single adjustment of the guide cover is increased, and the time interval of the adjustment action of the guide cover is shortened.

[0071] In this embodiment, the current air volume is the air supply intensity characterization r of the fan in the current operating state, the target air volume is the fan's expected air supply intensity characterization r_set preset by the system according to the control strategy under the current operating condition, the target angle range is the basic adjustable angle range preset by the guide cover in the corresponding operating mode, the step size of a single adjustment is the fixed change amount of the guide cover's angle adjustment each time, and the time interval of the adjustment action is the preset time threshold from when the guide cover completes one angle adjustment to when it is adjusted again.

[0072] Specifically, after the control system completes the preliminary calculation of the target cover angle, it first obtains the current air volume *r* through the fan's operating speed signal or internal airflow module, and simultaneously retrieves the target air volume *r_set* under the current operating condition. The current air volume *r* is then compared with the target air volume *r_set* to determine if the current air volume *r* is greater than the target air volume *r_set*. Secondly, if the current air volume *r* is determined to be significantly greater than the target air volume *r_set*, meaning the fan is in a high-speed, strong airflow state, the control system classifies the current airflow state as a high-speed state and implements airflow compensation control on the guide cover. This limits the target angle range of the guide cover by directly reducing the maximum angle limit of the guide cover in the downward airflow direction, such as the basic target angle range in cooling mode. The initial angle is 10°~40°, which is then narrowed to 10°~30°. In heating mode, the basic target angle range is 30°~70°, which is narrowed to 30°~60°. The cover plate is prohibited from being adjusted to its original maximum angle in the downward airflow direction that is prone to direct blowing. At the same time, the step size of a single adjustment of the guide cover plate is reduced, such as from 5° / time to 2° / time, reducing the amplitude of the cover plate angle adjustment. The time interval of the guide cover plate adjustment action is increased, such as from 10s to 20s, slowing down the adjustment frequency of the cover plate. After this adjustment, the angle change of the guide cover plate is always in a small and stable state, and the flow ratio of the side air outlet channel and the bottom air outlet channel does not fluctuate significantly, avoiding strong direct blowing caused by sudden changes in angle under high wind speed, and reducing the noise caused by airflow impact.

[0073] If the current airflow *r* is determined to be less than the target airflow *r_set*, meaning the fan is in a low-speed state with low air delivery intensity, the control system will classify the current airflow state as low-speed and implement airflow compensation control. Specifically, widening the target angle range of the guide cover involves temporarily increasing the maximum adjustable angle limit in the downward airflow direction, for example, by 5°, within the basic adjustable angle range corresponding to the guide cover's operating mode. This angle expansion is a dynamic adjustment of the control strategy and does not change the mechanical limit angle of the cover. For example, in cooling mode, the basic target angle range is 10°~40°, which is widened to 10°~45°; in heating mode... The initial target angle range is 30°~70°, which is widened to 30°~75°. Simultaneously, the step size of a single adjustment of the guide cover is increased, such as from 2° / time to 5° / time, improving the efficiency of the cover angle adjustment and shortening the time interval of the guide cover adjustment action, such as from 20s to 10s, increasing the adjustment frequency of the cover. After this adjustment, the guide cover can be quickly adjusted within a wider angle range. The flow ratio of the side air outlet channel and the bottom air outlet channel can quickly adapt to the airflow diffusion requirements under low wind speed. By increasing the airflow distribution ratio in the downward airflow direction, the defects of small airflow diffusion range and weak circulation effect under low wind speed are compensated.

[0074] This step integrates the wind speed compensation mechanism with the angle control of the air guide cover. Based on the comparison between the current air volume and the target air volume, the target angle range of the air guide cover is precisely adjusted according to the specific numerical range. At the same time, the compensation adjustment of the step size and interval is matched. This not only fundamentally solves the problems of direct airflow and increased noise at high wind speeds from the perspective of angle limits, but also makes up for the lack of airflow diffusion ability at low wind speeds by dynamically widening the angle range. This makes the wind direction control strategy at different wind speed levels more consistent and predictable, effectively optimizes the indoor airflow organization under different wind speed conditions, and improves the air supply comfort and operational stability of the ducted air conditioner at all wind speed levels.

[0075] In one embodiment, step S130 further includes: S1310-S1313.

[0076] S1310. Obtain the current cover angle of the guide cover, and determine the current angle difference based on the current cover angle and the target cover angle; S1311. Determine whether the current angle difference is greater than the preset single step size; S1312. If so, adjust the current cover plate angle sequentially according to the preset single step size until the target cover plate angle is reached. S1313. If not, the current cover plate angle is directly adjusted to the target cover plate angle.

[0077] Specifically, firstly, after determining the target cover angle of the guide cover, the control system obtains the current cover angle of the guide cover through the angle detection module. The difference between the current cover angle and the target cover angle is calculated to obtain the current angle difference between the two. This difference directly reflects the angle range that the cover needs to be adjusted. Secondly, the control system retrieves the preset single step size and compares the current angle difference with the preset single step size to determine whether the current angle difference is greater than the preset single step size. If it is determined that the current angle difference is greater than the preset single step size, it means that the cover needs a large angle adjustment. At this time, the control system will use the preset single step size as the fixed angle value for each adjustment and control the drive component to drive the guide cover to adjust towards the target cover angle one step at a time. After each step adjustment is completed, the current cover angle is re-detected and a new angle difference is calculated. This adjustment process is repeated until the current cover angle of the guide cover is consistent with the target cover angle. During this process, the flow area of ​​the side air outlet channel and the bottom air outlet channel changes slightly and steadily with the successive adjustment of the cover, without any sudden change in the flow ratio. If the current angle difference is determined to be no greater than the preset single step size, it means that the cover plate only needs a small angle adjustment. At this time, the control system will directly control the drive component to drive the guide cover plate to adjust from the current cover plate angle to the target cover plate angle. After adjustment, the flow area of ​​the side air outlet channel and the bottom air outlet channel will be quickly adapted to the target ratio to meet the airflow distribution requirements of the current working condition.

[0078] This step enables a smooth adjustment of the guide cover angle, avoiding drastic fluctuations in airflow caused by a single large-angle adjustment. It ensures the continuity and stability of the flow ratio adjustment between the side and bottom air outlet channels, while also improving control efficiency during small-angle adjustments. This keeps the airflow of the ducted air conditioner in a uniform and stable distribution, effectively reducing airflow noise generated during angle adjustment and improving user comfort. It also makes the angle adjustment of the guide cover more aligned with actual air supply control needs.

[0079] Figure 9 This is a schematic block diagram of a control device 200 for an air conditioner provided in an embodiment of the present invention. Figure 9 As shown, corresponding to the above-described air conditioner control method, the present invention also provides an air conditioner control device 200. This air conditioner control device 200 includes a unit for executing the above-described air conditioner control method, and the device can be configured in a computer device. Specifically, please refer to... Figure 9 The control device 200 of the air conditioner includes: an acquisition unit 201, a calculation unit 202, and a control unit 203.

[0080] The acquisition unit 201 is used to acquire indoor temperature and indoor humidity, determine a temperature difference based on the indoor temperature and a set temperature, and determine a humidity difference based on the indoor humidity and a set humidity. The calculation unit 202 is used to determine a comprehensive adjustment amount based on the temperature difference and the humidity difference using a preset temperature and humidity coupling algorithm. The comprehensive adjustment amount is used to characterize the degree of deviation of the current air state. The control unit 203 is used to determine the target cover angle according to the current operating mode and the comprehensive adjustment amount, and control the drive assembly to drive the guide cover to rotate according to the target cover angle, wherein the cover angle is the included angle formed between the lower side of the guide cover and the lower side of the volute.

[0081] It should be noted that the control device 200 of the air conditioner in this embodiment also includes units that correspond one-to-one with each step of the control method of the air conditioner described above. For the sake of brevity, these will not be described in detail here.

[0082] The control device 200 of the aforementioned air conditioner can be implemented as a computer program, which can, for example, Figure 10 It runs on the computer device shown.

[0083] Please see Figure 10 , Figure 10 This is a schematic block diagram of a computer device 500 provided in an embodiment of this application. The computer device 500 may be an air conditioner or a terminal.

[0084] See Figure 10 The computer device 500 includes a processor 502, a memory, and a network interface 505 connected via a system bus 501. The memory may include a non-volatile storage medium 503 and internal memory 504.

[0085] The non-volatile storage medium 503 may store an operating system 5031 and a computer program 5032. The computer program 5032 includes program instructions that, when executed, cause the processor 502 to perform a control method for an air conditioner.

[0086] The processor 502 provides computing and control capabilities to support the operation of the entire computer device 500.

[0087] The internal memory 504 provides an environment for the operation of the computer program 5032 in the non-volatile storage medium 503. When the computer program 5032 is executed by the processor 502, the processor 502 can execute a control method for an air conditioner.

[0088] This network interface 505 is used for network communication with other devices. Those skilled in the art will understand that... Figure 10 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device 500 to which the present application is applied. The specific computer device 500 may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0089] The processor 502 is used to run a computer program 5032 stored in a memory to implement the steps of the above method.

[0090] It should be understood that in the embodiments of this application, the processor 502 may be a central processing unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0091] It will be understood by those skilled in the art that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program includes program instructions and can be stored in a storage medium, which is a computer-readable storage medium. The program instructions are executed by at least one processor in the computer system to implement the process steps of the embodiments of the above methods.

[0092] Therefore, the present invention also provides a storage medium. This storage medium can be a computer-readable storage medium. The storage medium stores a computer program, wherein the computer program includes program instructions. When executed by a processor, the program instructions cause the processor to perform the steps of the above-described method.

[0093] The storage medium can be any computer-readable storage medium capable of storing program code, such as a USB flash drive, portable hard drive, read-only memory (ROM), magnetic disk, or optical disk.

[0094] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0095] In the several embodiments provided by this invention, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For example, the division of each unit is merely a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0096] The steps in the method of this invention can be adjusted, merged, or reduced in order according to actual needs. The units in the device of this invention can be merged, divided, or reduced according to actual needs. Furthermore, the functional units in the various embodiments of this invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0097] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device to execute all or part of the steps of the methods described in the various embodiments of the present invention.

[0098] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0099] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Since these modifications and variations fall within the scope of the claims and their equivalents, this invention also intends to include these modifications and variations.

[0100] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A ducted air conditioner, characterized in that, include: The housing has a side air outlet and a bottom air outlet. The side air outlet is located on the side of the housing in the horizontal direction, and the bottom air outlet is located on the lower surface of the housing in the vertical direction. A volute is disposed inside the housing, and the outlet of the volute is connected to the side air outlet and the bottom air outlet respectively; A centrifugal fan is located inside the volute casing; A flow guide cover is provided at the outlet of the volute and is arranged around the outer periphery of the centrifugal fan in cooperation with the volute. A side air outlet channel is formed between the upper side of the flow guide cover and the upper side of the volute, which communicates with the side air outlet. A lower air outlet channel is formed between the lower side of the flow guide cover and the lower side of the volute, which communicates with the lower air outlet. A drive assembly, connected to the guide cover, is used to drive it to rotate circumferentially around the centrifugal fan to adjust the flow area of ​​the side air outlet channel and the lower air outlet channel.

2. The duct air conditioner according to claim 1, characterized in that, The guide cover has a first position. When the guide cover is rotated to the first position, the upper side of the guide cover is in contact with or close to the upper side of the volute, the side air outlet channel is closed, and the flow area of ​​the lower air outlet channel is maximized; and / or, The guide cover has a second position. When the guide cover is rotated to the second position, the lower side of the guide cover is in contact with or close to the lower side of the volute, the lower air outlet channel is closed, and the flow area of ​​the side air outlet channel is maximized; and / or, The flow guide cover has a third position. When the flow guide cover is rotated to the third position, there is a gap between the upper side of the flow guide cover and the upper side of the volute, and between the lower side of the flow guide cover and the lower side of the volute. The side air outlet channel and the lower air outlet channel are both opened.

3. The duct air conditioner according to claim 1, characterized in that, It also includes flexible seals, The flexible seal is disposed on the upper and / or lower side of the flow guide cover; and / or, The flexible seal is located on the upper and / or lower side of the volute.

4. A control method for an air conditioner, characterized in that, The air conditioner includes a ducted air conditioner as described in any one of claims 1-3, and the method includes: The system acquires indoor temperature and indoor humidity, determines a temperature difference based on the indoor temperature and a set temperature, and determines a humidity difference based on the indoor humidity and a set humidity. A comprehensive adjustment amount is determined based on the temperature difference and the humidity difference using a preset temperature and humidity coupling algorithm. The comprehensive adjustment amount is used to characterize the degree of deviation of the current air condition. The target cover angle is determined based on the current operating mode and the comprehensive adjustment amount. The drive assembly is then controlled to rotate the guide cover according to the target cover angle. The cover angle is the angle formed between the lower side of the guide cover and the lower side of the volute.

5. The method according to claim 4, characterized in that, The step of determining the comprehensive adjustment amount based on the temperature difference and the humidity difference using a preset temperature and humidity coupling algorithm includes: Obtain the preset temperature weight and preset humidity weight; The temperature adjustment amount is determined based on the temperature difference and the preset temperature weight, the humidity adjustment amount is determined based on the humidity difference and the preset humidity weight, and the comprehensive adjustment amount is determined based on the sum of the temperature adjustment amount and the humidity adjustment amount.

6. The method according to claim 4, characterized in that, If the current operating mode is cooling mode, the step of determining the target cover angle based on the current operating mode and the comprehensive adjustment amount, and controlling the drive assembly to drive the guide cover to rotate based on the target cover angle, includes: Determine whether the comprehensive adjustment amount is less than or equal to the first preset adjustment amount threshold; if so, determine the target cover plate angle as the first preset maximum cover plate angle, and control the drive component to drive the guide cover plate to rotate to the first preset maximum cover plate angle. Determine whether the comprehensive adjustment amount is greater than the first preset adjustment amount threshold and less than the second preset adjustment amount threshold; if so, determine the target cover plate angle based on the comprehensive adjustment amount using linear interpolation, and control the drive component to drive the guide cover plate to rotate based on the target cover plate angle, wherein the second preset adjustment amount threshold is greater than the first preset adjustment amount threshold; Determine whether the comprehensive adjustment amount is greater than or equal to the second preset adjustment amount threshold. If so, determine the target cover angle as the first preset minimum cover angle, and control the drive component to drive the guide cover to rotate to the first preset minimum cover angle.

7. The method according to claim 6, characterized in that, If the current operating mode is heating mode, the step of determining the target cover angle based on the current operating mode and the comprehensive adjustment amount, and controlling the drive assembly to drive the guide cover to rotate based on the target cover angle, includes: Determine whether the comprehensive adjustment amount is less than or equal to the third preset adjustment amount threshold; if so, determine the target cover plate angle as the second preset minimum cover plate angle, and control the drive component to drive the guide cover plate to rotate to the second preset minimum cover plate angle. Determine whether the comprehensive adjustment amount is greater than the third preset adjustment amount threshold and less than the fourth preset adjustment amount threshold; if so, determine the target cover plate angle based on the comprehensive adjustment amount using linear interpolation, and control the drive component to drive the guide cover plate to rotate based on the target cover plate angle, wherein the fourth preset adjustment amount threshold is greater than the third preset adjustment amount threshold. Determine whether the comprehensive adjustment amount is greater than or equal to the fourth preset adjustment amount threshold; if so, determine the target cover angle as the second preset maximum cover angle, and control the drive component to drive the guide cover to rotate to the second preset maximum cover angle.

8. The method according to claim 7, characterized in that, The step of determining the target cover angle based on the comprehensive adjustment amount using linear interpolation includes: If the current operating mode is cooling mode, obtain the first difference between the comprehensive adjustment amount and the first preset adjustment amount threshold, and the second difference between the second preset adjustment amount threshold and the first preset adjustment amount threshold; calculate the ratio of the first difference to the second difference to obtain the first proportional factor; calculate the difference between the first preset maximum cover angle and the first preset minimum cover angle to obtain the first maximum angle difference; determine the first angle change amount based on the product of the first proportional factor and the first maximum angle difference; determine the target cover angle based on the difference between the first preset maximum cover angle and the first angle change amount. If the current operating mode is heating mode, obtain the third difference between the comprehensive adjustment amount and the third preset adjustment amount threshold, and the fourth difference between the fourth preset adjustment amount threshold and the third preset adjustment amount threshold; calculate the ratio of the third difference to the fourth difference to obtain the second proportional factor; calculate the difference between the second preset maximum cover plate angle and the second preset minimum cover plate angle to obtain the second maximum angle difference; determine the second angle change amount based on the product of the second proportional factor and the second maximum angle difference; determine the target cover plate angle based on the sum of the second preset minimum cover plate angle and the second angle change amount.

9. The method according to claim 4, characterized in that, The step of controlling the drive assembly to rotate the guide cover according to the target cover angle includes: Obtain the current air volume and the target air volume under the current operating conditions, and determine whether the current air volume is greater than the target air volume; If so, the current wind speed is determined to be a high wind speed state, and the target angle range of the guide cover is limited, the step size of a single adjustment of the guide cover is reduced, and the time interval of the adjustment action of the guide cover is increased. If not, the current wind speed is determined to be low, and the target angle range of the guide cover is widened, the step size of a single adjustment of the guide cover is increased, and the time interval of the guide cover adjustment action is shortened.

10. The method according to claim 4, characterized in that, The step of controlling the drive assembly to rotate the guide cover according to the target cover angle includes: Obtain the current cover angle of the guide cover, and determine the current angle difference based on the current cover angle and the target cover angle; Determine whether the current angle difference is greater than the preset single step size; If so, the current cover plate angle is adjusted sequentially according to the preset single step size until the target cover plate angle is reached; If not, the current cover plate angle will be directly adjusted to the target cover plate angle.

11. A control device for an air conditioner, characterized in that, The apparatus includes a unit for performing the method of any one of claims 4-10.

12. A computer device, characterized in that, The computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the method as described in any one of claims 4-10.

13. A computer-readable storage medium, characterized in that, The storage medium stores a computer program that, when executed by a processor, can implement the method as described in any one of claims 4-10.

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