Air conditioner, control method and device thereof, storage medium and computer program product

Abstract

The application discloses a kind of control method, device, air conditioner of air conditioner, storage medium and computer program product, air conditioner includes multiple return air inlets, each return air inlet corresponds to the heat exchange area of one indoor respectively;Each return air inlet is configured with return air damper;The method comprises: obtaining the ambient temperature of each heat exchange area;According to the ambient temperature of each heat exchange area, the compressor frequency and inner fan gear of air conditioner are controlled;According to the ambient temperature of each heat exchange area, the opening of return air damper at the return air inlet corresponding to each heat exchange area is controlled.The scheme improves the uniformity of indoor global temperature, avoids invalid energy consumption, and improves the energy-saving effect and multi-scene adaptability of energy-saving air conditioning equipment.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning technology, and specifically relates to an air conditioning control method, device, air conditioner, storage medium, and computer program product. Background Technology

[0002] Concealed air conditioners, such as ducted and ceiling-mounted units, are widely used in various scenarios, including residential homes and commercial offices, due to their advantages of concealed installation and space saving. The core heat exchange logic of these air conditioners relies on the circulation of indoor air return-heat exchange-export. However, in current technology, concealed air conditioners generally adopt a structural design with a single return air inlet and single / multiple air outlets on one side. This design makes it impossible to achieve both rapid heat exchange efficiency and temperature uniformity throughout the room during actual operation.

[0003] Specifically, the single return air vent structure greatly limits the airflow and velocity of indoor return air. Even when combined with multiple air outlets, it is difficult to break the single circulation pattern of the "large air loop". In actual usage scenarios with diverse apartment layouts (such as T-shaped and L-shaped spaces) and dynamic changes in heat load (such as concentrated human activities, localized solar radiation, and continuous heat dissipation from equipment), a single return air vent can only collect temperature signals from a local area, and the air conditioner cannot accurately sense the actual differences in heat load between different areas.

[0004] To compensate for the heat exchange limitations of single return air vents, existing technologies often employ high-power compressor operation and continuous high-speed fan operation to improve circulation efficiency. However, this approach not only results in significant energy waste but also, due to the fixed airflow path, prevents hot and cold air from quickly reaching areas with large temperature differences. Ultimately, this manifests as slow overall room heat exchange, significant temperature differences between different areas, and while the temperature near the air outlet reaches the set point, areas further away or in corners may not, severely impacting the user experience.

[0005] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0006] The purpose of this invention is to provide an air conditioning control method, device, air conditioner, storage medium, and computer program product to solve the problem that air conditioners using a single return air outlet design cannot accurately sense the differences in heat load in different areas, resulting in difficulty in simultaneously achieving rapid heat exchange efficiency and temperature uniformity throughout the room. This invention aims to improve the uniformity of indoor temperature, enhance the energy-saving effect of air conditioning equipment, and improve its adaptability to multiple scenarios.

[0007] This invention provides a control method for an air conditioner, the air conditioner including multiple return air vents, each return air vent corresponding to a heat exchange zone indoors; each return air vent is equipped with a return air valve; the method includes: acquiring the ambient temperature of each heat exchange zone; controlling the compressor frequency and indoor fan speed of the air conditioner according to the ambient temperature of each heat exchange zone; and controlling the opening degree of the return air valve at the return air vent corresponding to each heat exchange zone according to the ambient temperature of each heat exchange zone.

[0008] In some embodiments, controlling the compressor frequency and indoor fan speed of the air conditioner based on the ambient temperature of each heat exchange zone includes: recording the absolute value of the difference between the average ambient temperature of each heat exchange zone and a preset temperature as the actual temperature difference; determining the magnitude of the actual temperature difference; if the actual temperature difference is greater than a first preset value, controlling the compressor to operate at a first frequency and the indoor fan to operate at a first speed; if the actual temperature difference is less than or equal to the first preset value and greater than a second preset value, controlling the compressor to operate at a second frequency and the indoor fan to operate at a second speed; if the actual temperature difference is less than or equal to the second preset value, controlling the compressor to operate at a third frequency and the indoor fan to operate at a third speed; wherein, the first preset value > the second preset value, the first frequency > the second frequency > the third frequency, and the first speed > the second speed > the third speed.

[0009] In some embodiments, controlling the opening degree of the return air valve at the corresponding return air inlet of each heat exchange zone according to the ambient temperature of each heat exchange zone includes: calculating the absolute value of the difference between the ambient temperature of each heat exchange zone and a preset temperature, and determining the maximum absolute value of the difference; determining the opening degree of the return air valve at the corresponding return air inlet according to the ratio of the absolute value of the difference between each heat exchange zone and the maximum absolute value of the difference.

[0010] In some implementations, the larger the ratio of the absolute value of the difference to the absolute value of the maximum difference, the larger the opening of the return air valve at the corresponding return air inlet.

[0011] In some embodiments, an air guide plate is provided at the air outlet of the air conditioner, and different air guiding sections of the air guide plate correspond one-to-one with each of the heat exchange areas; the method further includes: controlling the dwell time of the air guide plate in the corresponding air guiding section according to the opening degree of the return air valve at each of the return air inlets.

[0012] In some implementations, the dwell time of the air guide plate in the corresponding air guiding zone is controlled according to the opening degree of the return air valve at each of the return air inlets, including: calculating the proportion of the opening degree of each of the return air valves in the total opening degree of all the return air valves; allocating the dwell time of the air guide plate in the corresponding air guiding zone according to the proportion; the larger the proportion, the longer the corresponding dwell time.

[0013] In conjunction with the above method, another aspect of the present invention provides an air conditioner control device, the air conditioner including a plurality of return air vents, each of the return air vents corresponding to a heat exchange zone in the room; each of the return air vents is provided with a return air valve; the device includes: an acquisition unit configured to acquire the ambient temperature of each of the heat exchange zones; a control unit configured to control the compressor frequency and indoor fan speed of the air conditioner according to the ambient temperature of each of the heat exchange zones; the control unit is further configured to control the opening degree of the return air valve at the return air vent corresponding to each of the heat exchange zones according to the ambient temperature of each of the heat exchange zones.

[0014] In some embodiments, the control unit controls the compressor frequency and indoor fan speed of the air conditioner according to the ambient temperature of each heat exchange zone, including: recording the absolute value of the difference between the average ambient temperature of each heat exchange zone and a preset temperature as the actual temperature difference; determining the magnitude of the actual temperature difference; if the actual temperature difference is greater than a first preset value, controlling the compressor to operate at a first frequency and the indoor fan to operate at a first speed; if the actual temperature difference is less than or equal to the first preset value and greater than a second preset value, controlling the compressor to operate at a second frequency and the indoor fan to operate at a second speed; if the actual temperature difference is less than or equal to the second preset value, controlling the compressor to operate at a third frequency and the indoor fan to operate at a third speed; wherein, the first preset value > the second preset value, the first frequency > the second frequency > the third frequency, and the first speed > the second speed > the third speed.

[0015] In some implementations, the control unit controls the opening degree of the return air valve at the corresponding return air inlet of each heat exchange zone according to the ambient temperature of each heat exchange zone, including: calculating the absolute value of the difference between the ambient temperature of each heat exchange zone and a preset temperature, and determining the maximum absolute value of the difference; and determining the opening degree of the return air valve at the corresponding return air inlet according to the ratio of the absolute value of the difference between each heat exchange zone and the maximum absolute value of the difference.

[0016] In some implementations, the larger the ratio of the absolute value of the difference to the absolute value of the maximum difference, the larger the opening of the return air valve at the corresponding return air inlet.

[0017] In some embodiments, the air outlet of the air conditioner is provided with an air guide plate, and the different air guiding sections of the air guide plate correspond one-to-one with each of the heat exchange areas; the control unit is further configured to control the dwell time of the air guide plate in the corresponding air guiding section according to the opening degree of the return air valve at each of the return air inlets.

[0018] In some implementations, the control unit controls the dwell time of the air guide plate in the corresponding air guide zone according to the opening degree of the return air valve at each of the return air inlets, including: calculating the proportion of the opening degree of each of the return air valves in the total opening degree of all the return air valves; allocating the dwell time of the air guide plate in the corresponding air guide zone according to the proportion; the larger the proportion, the longer the corresponding dwell time.

[0019] In conjunction with the above-described device, the present invention further provides an air conditioner, comprising: the control device for the air conditioner described above.

[0020] In conjunction with the above method, the present invention further provides a storage medium comprising a stored program, wherein, when the program is executed, the device on which the storage medium is located controls the air conditioner control method described above to be performed.

[0021] In conjunction with the above method, the present invention further provides a computer program product comprising a computer program that, when processed and executed, implements the steps of the above-described air conditioner control method.

[0022] The present invention provides an energy-saving air conditioning unit with multiple return air vents corresponding to different heat exchange zones within the room. Each return air vent is equipped with an independent return air valve. During the control process, the ambient temperature of each heat exchange zone is first acquired. Then, based on the temperature data of each zone, the compressor frequency and indoor fan speed are adjusted collaboratively. Simultaneously, the opening degree of the return air valve at the corresponding return air vent is controlled according to the temperature data of each zone, achieving precise temperature control in multiple zones. This improves the uniformity of temperature throughout the room, solves the problem of uneven heating and cooling in localized areas caused by traditional single-return-air-vent air conditioning, avoids ineffective energy consumption, and enhances the energy-saving effect of the air conditioning unit and its adaptability to various apartment layouts and variable heat load scenarios.

[0023] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention.

[0024] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0025] Figure 1 This is a flowchart illustrating an embodiment of the air conditioner control method of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of an embodiment of the air conditioner control device of the present invention;

[0027] Figure 3 This is a structural block diagram of an air conditioning system;

[0028] Figure 4This is a structural schematic diagram of a ceiling-mounted air conditioner;

[0029] Figure 5 This is a structural schematic diagram of a ducted air conditioning unit;

[0030] Figure 6 This is a flowchart illustrating the control method of a ducted air conditioning unit.

[0031] Referring to the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0032] 102 - Acquisition unit; 104 - Control unit. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0034] According to an embodiment of the present invention, an air conditioning control method is provided. The air conditioner includes multiple return air vents, the number of which can be flexibly adjusted according to the size and layout of the indoor space. For example, a small room can be equipped with two return air vents, while a large open space can be equipped with five or more return air vents. Each return air vent corresponds to a heat exchange zone in the room. The heat exchange zone is an independent temperature control zone divided according to the indoor space layout and usage requirements. The ambient temperature of each zone can be independently detected through the corresponding return air vent. Each return air vent is equipped with a return air damper. By changing the opening degree of the return air damper, the return air flow rate of the corresponding heat exchange zone can be controlled, thereby adjusting the air circulation speed of that zone.

[0035] like Figure 3 As shown, the air conditioning system includes a controller, an air conditioner unit, a temperature sensor assembly, and a smart air valve assembly. The controller is communicatively connected to the air conditioner unit, the temperature sensor assembly, and the smart air valve assembly, receiving temperature data and issuing control commands. The temperature sensor assembly contains four independent temperature sensors (sensor 1, sensor 2, sensor 3, and sensor 4), each located in a different heat exchange zone within the room, collecting ambient temperature data for that zone and transmitting it to the controller. The smart air valve assembly contains four independent smart air valves (valve 1, valve 2, valve 3, and valve 4), each located at a return air vent of the air conditioner, receiving control commands from the controller to adjust the opening of the corresponding return air vent.

[0036] like Figure 1 The flowchart of an embodiment of the method of the present invention is shown. The air conditioner control method may include steps S110 to S130.

[0037] In step S110, the ambient temperature of each heat exchange zone is obtained.

[0038] The air conditioner uses distributed return air vents to simultaneously collect the real-time ambient temperature of each corresponding heat exchange area, forming a comprehensive indoor temperature distribution map.

[0039] In step S120, the compressor frequency and indoor fan speed of the air conditioner are controlled according to the ambient temperature of each heat exchange zone.

[0040] The compressor frequency and indoor fan speed directly determine the overall operating power and heat exchange efficiency of the air conditioner. Adjusting these settings in conjunction with the overall ambient temperature of each area allows for a precise match between the air conditioner's operation and the overall indoor heating and cooling demand. Specifically, by considering the ambient temperature of all heat exchange zones, the overall indoor heat load is determined. If the overall temperature deviates significantly from the set temperature, it indicates a high heat load, requiring an increase in compressor frequency and indoor fan speed to enhance heat exchange capacity. Conversely, if the overall temperature is close to the set temperature, it indicates a low heat load, allowing for a decrease in compressor frequency and indoor fan speed to reduce energy consumption. Through this control, the air conditioning equipment achieves energy-saving effects.

[0041] In some embodiments, step S120, controlling the compressor frequency and indoor fan speed of the air conditioner according to the ambient temperature of each heat exchange zone, includes: recording the absolute value of the difference between the average ambient temperature of each heat exchange zone and a preset temperature as the actual temperature difference; determining the magnitude of the actual temperature difference; if the actual temperature difference is greater than a first preset value, controlling the compressor to operate at a first frequency and the indoor fan to operate at a first speed; if the actual temperature difference is less than or equal to the first preset value and greater than a second preset value, controlling the compressor to operate at a second frequency and the indoor fan to operate at a second speed; if the actual temperature difference is less than or equal to the second preset value, controlling the compressor to operate at a third frequency and the indoor fan to operate at a third speed; wherein, the first preset value > the second preset value, the first frequency > the second frequency > the third frequency, and the first speed > the second speed > the third speed.

[0042] The first preset value is used to classify high and medium heat load levels and can be set to 3℃. When the actual temperature difference exceeds this value, the overall indoor heat load is determined to be at a high level. The second preset value is used to classify medium and low heat load levels and can be set to 1℃. When the actual temperature difference is lower than or equal to this value, the overall indoor heat load is determined to be at a low level. The first frequency and the first speed setting correspond to the highest operating frequency of the compressor and the highest fan speed setting of the indoor fan under high load conditions, used to quickly improve the heat exchange capacity of the air conditioner. The second frequency and the second speed setting correspond to the intermediate operating frequency of the compressor and the intermediate fan speed setting of the indoor fan under medium load conditions, used to maintain stable heat exchange efficiency. The third frequency and the third speed setting correspond to the lowest operating frequency of the compressor and the lowest fan speed setting of the indoor fan under low load conditions, used to reduce operating energy consumption.

[0043] The average ambient temperature of each heat exchange zone can objectively reflect the overall indoor temperature level. The absolute value of the difference between the average temperature and the preset temperature can be used as the actual temperature difference, which can avoid the interference of abnormal temperature in a single zone on the judgment of the overall heat load.

[0044] Specifically, the air conditioning unit first collects the ambient temperature of all heat exchange areas, calculates the average value of all temperature data, then subtracts the preset temperature from this average value and takes the absolute value to obtain the actual temperature difference. Subsequently, the actual temperature difference is compared with the first preset value and the second preset value: if the actual temperature difference > the first preset value, it indicates a large deviation between the overall indoor temperature and the preset temperature, a high heat load, requiring the air conditioner to operate at its highest power to quickly reduce the overall temperature difference. The air conditioning unit sends a command to the compressor to operate at its highest first frequency, while simultaneously controlling the indoor fan to deliver air at its highest first speed, maximizing cooling or heating capacity and accelerating the overall indoor heat exchange rate; if the actual temperature difference is within the first preset value, it indicates a larger deviation between the actual and preset temperatures, indicating a higher heat load. In this case, the air conditioning unit operates at its highest power to quickly reduce the overall temperature difference. The air conditioning unit then sends a command to the compressor to operate at its highest first frequency, while simultaneously controlling the indoor fan to deliver air at its highest first speed, maximizing cooling or heating capacity and accelerating the overall indoor heat exchange rate. When the actual temperature difference is between the second preset value and the third preset value, it indicates that the overall indoor heat load is at a moderate level. It is not necessary to operate at full power. Maintaining moderate power is sufficient to steadily reduce the temperature difference. The air conditioning equipment controls the compressor to operate at the second frequency in the middle range, and at the same time controls the indoor fan to deliver air at the second speed in the middle range. This ensures heat exchange efficiency while avoiding unnecessary power waste. When the actual temperature difference is ≤ the second preset value, it indicates that the overall indoor temperature is close to the preset temperature and the heat load is low. It is only necessary to maintain low power operation to keep the temperature stable. The air conditioning equipment controls the compressor to operate at the third lowest frequency, and at the same time controls the indoor fan to deliver air at the third lowest speed. This minimizes operating energy consumption while maintaining temperature stability.

[0045] In some embodiments, the number of preset values ​​can be adjusted according to the actual usage scenario. For example, three preset values ​​can be set to divide four operating modes. As long as the compressor frequency and the internal fan speed can be adjusted in a gradient according to the actual temperature difference, the purpose of matching heat load and saving energy can be achieved.

[0046] In step S130, the opening degree of the return air valve at the corresponding return air inlet of each heat exchange zone is controlled according to the ambient temperature of each heat exchange zone.

[0047] Different heat exchange zones have varying ambient temperatures and heating / cooling requirements. By adjusting the opening of the return air dampers at the corresponding return air vents, precise air distribution to different zones can be achieved, avoiding energy waste. Specifically, by comparing the ambient temperature and set temperature of each heat exchange zone, for zones with large temperature deviations, the opening of the corresponding return air vent dampers is increased to accelerate air circulation and improve heat exchange efficiency; for zones with small temperature deviations, the opening of the corresponding return air vent dampers is decreased to reduce unnecessary air circulation and lower ineffective energy consumption. Through this control, the air conditioning equipment achieves energy-saving effects.

[0048] In some embodiments, step S130, controlling the opening degree of the return air valve at the corresponding return air inlet of each heat exchange zone according to the ambient temperature of each heat exchange zone, includes: calculating the absolute value of the difference between the ambient temperature of each heat exchange zone and the preset temperature, and determining the maximum absolute value of the difference; determining the opening degree of the return air valve at the corresponding return air inlet according to the ratio of the absolute value of the difference between each heat exchange zone and the maximum absolute value of the difference.

[0049] In some implementations, the larger the ratio of the absolute value of the difference to the absolute value of the maximum difference, the larger the opening of the return air valve at the corresponding return air inlet.

[0050] The absolute value of the temperature difference between a single heat exchange zone and the preset temperature directly reflects the degree of deviation of that zone. The larger the deviation, the higher the heat load of that zone and the greater the demand for return air heat exchange. By calculating the ratio based on the maximum absolute value of the temperature difference, the heat load deviation of each zone can be converted into a relative proportion between 0 and 1. Adjusting the opening of the air valve based on this proportion can make the return air flow of each zone proportional to its own heat load demand, achieving precise control of more return air in areas with high heat load and less return air in areas with low heat load, thus avoiding ineffective return air energy consumption in a single zone.

[0051] Specifically, the air conditioning system first calculates the absolute value of the difference between the ambient temperature and the preset temperature for each heat exchange zone. Then, it selects the largest absolute value from all these differences and designates it as the maximum absolute value. For each heat exchange zone, it calculates the ratio of its absolute value to the maximum absolute value. Adjustments are made according to the positive correlation between this ratio and the damper opening: a larger ratio corresponds to a larger damper opening, and a smaller ratio corresponds to a smaller damper opening. The return air damper opening for the heat exchange zone corresponding to the maximum absolute value can be set to fully open.

[0052] In some embodiments, the opening of the return air damper The calculation formula is , This is the absolute value of the difference between the ambient temperature and the preset temperature in the heat exchange zone. The absolute value of the maximum difference is given by I, which represents the heat exchange zone of the I-th return air inlet.

[0053] For example, the air conditioner is preset to a temperature of 25℃, and the room is divided into four heat exchange zones with ambient temperatures of 28℃, 27℃, 26℃, and 25.5℃, respectively. The air conditioning unit first calculates the absolute values ​​of the temperature differences between the zones: |28-25|=3℃, |27-25|=2℃, |26-25|=1℃, and |25.5-25|=0.5℃. Then, it determines the maximum absolute value of the temperature difference to be 3℃. Next, it calculates the ratios of the zones: 3 / 3=1, 2 / 3≈0.67, 1 / 3≈0.33, and 0.5 / 3≈0.17, respectively. According to the positive correlation rule, the air valve opening is adjusted as follows: the air valve opening of the zone with a ratio of 1 is adjusted to the maximum; the air valve opening of the zone with a ratio of approximately 0.67 is adjusted to approximately 67%; the air valve opening of the zone with a ratio of approximately 0.33 is adjusted to approximately 33%; and the air valve opening of the zone with a ratio of approximately 0.17 is adjusted to approximately 17%. Ultimately, the high-load 28°C area achieved the maximum return air flow, rapidly reducing the temperature, while the low-load 25.5°C area achieved the minimum return air flow, avoiding excessive heat exchange. The temperature in each area stabilized at around 25°C within a short period of time, while reducing ineffective return air energy consumption throughout the process.

[0054] This solution collects ambient temperatures from each heat exchange zone through distributed return air vents and coordinates the compressor frequency, indoor fan speed, and return air valve opening to enable energy-efficient air conditioning equipment to not only accurately adapt to the heating and cooling needs of different indoor areas, achieving uniform temperature control throughout the entire area and improving user comfort, but also avoid ineffective energy consumption and significantly reduce operating costs. It can also adapt to various apartment layouts such as rectangular, T-shaped, and L-shaped, as well as dynamic changes in heat load caused by factors such as occupant activity, sunlight intensity, and equipment heat dissipation, meeting the usage needs of different scenarios.

[0055] For example, the indoor space was divided into four heat exchange zones, each corresponding to a distributed return air vent, with the air conditioning set at 25°C. After operation, the ambient temperatures of the four zones were collected as 27°C, 26°C, 28°C, and 25.5°C, respectively. Based on the combined temperatures of each zone, the overall indoor heat load was high. Therefore, the air conditioning system increased the compressor frequency and the indoor fan speed to enhance overall cooling capacity. Simultaneously, for the zone with the largest temperature deviation at 28°C, the opening of the corresponding return air vent's damper was maximized to accelerate air circulation in that zone. For the zone with a temperature close to the set value at 25.5°C, the opening of the corresponding return air vent's damper was reduced to decrease air circulation energy consumption in that zone. Ultimately, the temperature in each zone stabilized at around 25°C within a short period, and no high-power ineffective operation occurred throughout the process, achieving the dual goals of uniform temperature control and energy saving.

[0056] In some embodiments, the air outlet of the air conditioner is provided with an air guide plate, and the different air guiding sections of the air guide plate correspond one-to-one with each of the heat exchange areas.

[0057] For air conditioning models with air guide vanes (such as ducted air conditioners), setting up air guide zones that correspond one-to-one with each heat exchange area allows the airflow to directly and directionally cover the target area, avoiding low heat exchange efficiency caused by dispersed airflow. Figure 4 This is a structural diagram of a ceiling-mounted air conditioner. The ceiling-mounted unit includes a controller, four return air vents, four temperature sensors, and four intelligent air valves. Each return air vent corresponds to a heat exchange zone in the room. Each temperature sensor and intelligent air valve is located at its corresponding return air vent. The four air outlets of the ceiling-mounted unit do not have zone-controllable air guides. Precise temperature control in multiple zones can be achieved simply by adjusting the opening of each intelligent air valve, the compressor frequency, and the indoor fan speed. No additional control of the air guides is required. Figure 5 This is a schematic diagram of a ducted air conditioning unit. The ducted air conditioning unit includes a controller, four return air vents, four temperature sensors, four intelligent air valves, and adjustable air guides for different zones. Each return air vent corresponds to a heat exchange zone in the room. Each temperature sensor and intelligent air valve is located at its corresponding return air vent. The different air guide zones of the air guides correspond one-to-one with each heat exchange zone. In addition to adjusting the opening degree of each intelligent air valve, the compressor frequency, and the indoor fan speed, the ducted air conditioning unit also needs to control the dwell time of the air guide in the corresponding air guide zone according to the opening degree of each intelligent air valve, so as to achieve precise matching between directional air supply and the heat load demand of the area.

[0058] In some embodiments, the method further includes controlling the dwell time of the air guide plate in the corresponding air guide zone according to the opening degree of the return air valve at each of the return air inlets.

[0059] The opening degree of the return air damper is a direct reflection of the heat load of each heat exchange zone. The higher the heat load, the larger the opening degree of the return air damper, and the stronger the demand for directional air supply. By adjusting the residence time of the air guide plate in the corresponding air guide zone, the air supply resources can be tilted towards the high demand area, so as to achieve a precise match between return air demand and air supply, and avoid energy waste caused by indiscriminate air supply.

[0060] Specifically, the air conditioning equipment collects real-time data on the opening of the return air valves at each return air vent and analyzes the differences in heat load demand in different areas. For areas with large return air valve openings, the air guide vanes are controlled to extend their residence time in their corresponding air guide zones to increase directional air supply time. For areas with small return air valve openings, the residence time of the air guide vanes in their corresponding air guide zones is shortened to reduce unnecessary air supply consumption.

[0061] For example, the room is divided into four heat exchange zones, corresponding to four air guide zones (air guide zones 1-4). The preset temperature of the air conditioner is 25℃, and the opening degrees of the return air dampers in each zone are 80%, 60%, 40%, and 20% respectively (the larger the opening degree, the higher the heat load). After detecting the opening degree of the dampers in each zone, the energy-saving air conditioning equipment determines the logic for allocating the dwell time of the air guide plate: for the zone with an opening degree of 80%, the dwell time of the air guide plate in the corresponding air guide zone 1 is controlled to be 4 seconds; for the zone with an opening degree of 60%, the dwell time in air guide zone 2 is 3 seconds; for the zone with an opening degree of 40%, the dwell time in air guide zone 3 is 2 seconds; and for the zone with an opening degree of 20%, the dwell time in air guide zone 4 is 1 second. The air guide plate cycles through the air guide zones with dwell times of 4 seconds - 3 seconds - 2 seconds - 1 second. High-load areas receive more directional air supply to quickly reduce the temperature, while low-load areas only receive basic air supply to avoid energy waste, ultimately achieving uniform and stable temperature throughout the entire area.

[0062] In some implementations, the dwell time of the air guide plate in the corresponding air guiding zone is controlled according to the opening degree of the return air valve at each of the return air inlets, including: calculating the proportion of the opening degree of each of the return air valves in the total opening degree of all the return air valves; allocating the dwell time of the air guide plate in the corresponding air guiding zone according to the proportion; the larger the proportion, the longer the corresponding dwell time.

[0063] The opening degree of the return air damper reflects the heat load demand of a single area, while the opening degree ratio can transform the demand of a single area into a relative proportion of the overall demand. The higher the opening degree ratio, the greater the proportion of the heat load demand of that area in the overall demand, and the stronger the demand for directional air supply. Through the allocation rule of "positive correlation between ratio and residence time", air supply resources can be tilted towards high demand areas, achieving a precise match between "demand intensity and air supply duration" and avoiding energy waste caused by indiscriminate air supply.

[0064] Specifically, the air conditioning equipment first collects the real-time opening values ​​of the return air valves at all return air vents, and adds all the opening values ​​to calculate the total opening. Then, for each heat exchange zone, the opening of its corresponding return air valve is divided by the total opening to obtain the proportion of return air valve opening in that zone. Based on the proportion of return air valve opening in each zone, a scheme for allocating the residence time of the air guide plate in the corresponding air guide zone is determined. The higher the proportion of the zone, the longer the residence time allocated to its corresponding air guide zone; the lower the proportion of the zone, the shorter the residence time. Through this control, the air conditioning equipment achieves energy-saving effects.

[0065] Figure 5The ducted air conditioning system is divided into two control groups: Zone 1 and Zone 3 are designated as the first control group, and Zones 2 and 4 are designated as the second control group, with the center of the room as the boundary. The air guide plate's dwell time is determined based on the opening degree of the corresponding intelligent air valves in each group. The air guide plate's normal sweeping within the 0° to 90° range is consistent with existing air conditioning systems. When the sweeping angle reaches 0° or 90°, the air guide plate performs a dwell sweeping operation, with a preset total dwell time of 10 seconds. The 0° dwell sweeping time T1 corresponds to the first control group, and the 90° dwell sweeping time T2 corresponds to the second control group. T1 and T2 are calculated using the following formulas:

[0066] , ;

[0067] In the formula, K1, K2, K3, and K4 represent the opening degrees of the intelligent air valves corresponding to Region 1, Region 2, Region 3, and Region 4, respectively.

[0068] Figure 6 This is a flowchart illustrating the control method for ducted air conditioning units, specifically including steps 1 to 6.

[0069] Step 1: The air conditioner is turned on and put into operation.

[0070] Step 2: Detect the ambient temperature and preset temperature at each return air vent, and calculate the absolute value of the difference between the detected temperature and the preset temperature in each heat exchange area based on the detection results.

[0071] Step 3: Based on the average temperature difference |t| between the average temperature of each heat exchange zone and the preset temperature. 设 -t 均 To determine the actual indoor heat load, further determine the compressor operating frequency and the indoor fan speed setting: if the average temperature difference is greater than the first preset value, control the compressor to run at maximum power and the indoor fan to run at high speed, and control all return air valves to be fully open; if the average temperature difference is greater than the second preset value but less than or equal to the first preset value, control the compressor to run at medium power and the indoor fan to run at medium speed; if the average temperature difference is less than or equal to the second preset value, control the compressor to run at low power and the indoor fan to run at low speed.

[0072] Step 4: Determine the opening degree of each return air valve according to the absolute value of the difference between the detected temperature and the preset temperature of each heat exchange zone, based on the preset calculation formula.

[0073] Step 5: Adjust the air guiding state of the control air guide plate according to the opening and closing status of each return air valve and the preset calculation formula.

[0074] Step 6: After the air conditioner's operating time exceeds the first preset time, repeat steps 2 to 5.

[0075] The technical solution adopted in this embodiment features an energy-saving air conditioning unit with multiple return air vents corresponding to different heat exchange zones within the room. Each return air vent is equipped with an independent return air valve. During the control process, the ambient temperature of each heat exchange zone is first acquired. Then, based on the temperature data of each zone, the compressor frequency and indoor fan speed are adjusted collaboratively. Simultaneously, the opening degree of the return air valve at the corresponding return air vent is controlled according to the temperature data of each zone, achieving precise temperature control in multiple zones. This improves the uniformity of indoor temperature, solves the problem of uneven heating and cooling in localized areas caused by traditional single-return-air-vent air conditioning, avoids ineffective energy consumption, and enhances the energy-saving effect of the air conditioning unit and its adaptability to various apartment layouts and variable heat load scenarios.

[0076] According to an embodiment of the present invention, a control device for an air conditioner corresponding to the control method of the air conditioner is also provided. The air conditioner includes multiple return air vents, the number of which can be flexibly adjusted according to the size and layout of the indoor space. For example, a small room may have two return air vents, while a large open space may have five or more. Each return air vent corresponds to a heat exchange zone within the room. The heat exchange zone is an independent temperature control zone divided according to the indoor space layout and usage requirements. The ambient temperature of each zone can be independently detected through the corresponding return air vent. Each return air vent is equipped with a return air damper. By changing the opening degree of the return air damper, the return air flow rate of the corresponding heat exchange zone can be controlled, thereby adjusting the air circulation speed of that zone.

[0077] See Figure 2 The diagram shows a structural schematic of an embodiment of the device of the present invention. The control device of the air conditioner may include: an acquisition unit 102 and a control unit 104.

[0078] Acquisition unit 102 is configured to acquire the ambient temperature of each of the heat exchange zones. The specific functions and processing of this unit are described in step S110.

[0079] The air conditioner uses distributed return air vents to simultaneously collect the real-time ambient temperature of each corresponding heat exchange area, forming a comprehensive indoor temperature distribution map.

[0080] The control unit 104 is configured to control the compressor frequency and indoor fan speed of the air conditioner according to the ambient temperature of each heat exchange zone. The specific functions and processing of this unit are described in step S120.

[0081] The compressor frequency and indoor fan speed directly determine the overall operating power and heat exchange efficiency of the air conditioner. Adjusting these settings in conjunction with the overall ambient temperature of each area allows for a precise match between the air conditioner's operation and the overall indoor heating and cooling demand. Specifically, by considering the ambient temperature of all heat exchange zones, the overall indoor heat load is determined. If the overall temperature deviates significantly from the set temperature, it indicates a high heat load, requiring an increase in compressor frequency and indoor fan speed to enhance heat exchange capacity. Conversely, if the overall temperature is close to the set temperature, it indicates a low heat load, allowing for a decrease in compressor frequency and indoor fan speed to reduce energy consumption. Through this control, the air conditioning equipment achieves energy-saving effects.

[0082] In some embodiments, the control unit 104 controls the compressor frequency and indoor fan speed of the air conditioner according to the ambient temperature of each heat exchange zone, including: recording the absolute value of the difference between the average ambient temperature of each heat exchange zone and a preset temperature as the actual temperature difference; determining the magnitude of the actual temperature difference; if the actual temperature difference is greater than a first preset value, controlling the compressor to operate at a first frequency and the indoor fan to operate at a first speed; if the actual temperature difference is less than or equal to the first preset value and greater than a second preset value, controlling the compressor to operate at a second frequency and the indoor fan to operate at a second speed; if the actual temperature difference is less than or equal to the second preset value, controlling the compressor to operate at a third frequency and the indoor fan to operate at a third speed; wherein, the first preset value > the second preset value, the first frequency > the second frequency > the third frequency, and the first speed > the second speed > the third speed.

[0083] The first preset value is used to classify high and medium heat load levels and can be set to 3℃. When the actual temperature difference exceeds this value, the overall indoor heat load is determined to be at a high level. The second preset value is used to classify medium and low heat load levels and can be set to 1℃. When the actual temperature difference is lower than or equal to this value, the overall indoor heat load is determined to be at a low level. The first frequency and the first speed setting correspond to the highest operating frequency of the compressor and the highest fan speed setting of the indoor fan under high load conditions, used to quickly improve the heat exchange capacity of the air conditioner. The second frequency and the second speed setting correspond to the intermediate operating frequency of the compressor and the intermediate fan speed setting of the indoor fan under medium load conditions, used to maintain stable heat exchange efficiency. The third frequency and the third speed setting correspond to the lowest operating frequency of the compressor and the lowest fan speed setting of the indoor fan under low load conditions, used to reduce operating energy consumption.

[0084] The average ambient temperature of each heat exchange zone can objectively reflect the overall indoor temperature level. The absolute value of the difference between the average temperature and the preset temperature can be used as the actual temperature difference, which can avoid the interference of abnormal temperature in a single zone on the judgment of the overall heat load.

[0085] Specifically, the air conditioning unit first collects the ambient temperature of all heat exchange areas, calculates the average value of all temperature data, then subtracts the preset temperature from this average value and takes the absolute value to obtain the actual temperature difference. Subsequently, the actual temperature difference is compared with the first preset value and the second preset value: if the actual temperature difference > the first preset value, it indicates a large deviation between the overall indoor temperature and the preset temperature, a high heat load, requiring the air conditioner to operate at its highest power to quickly reduce the overall temperature difference. The air conditioning unit sends a command to the compressor to operate at its highest first frequency, while simultaneously controlling the indoor fan to deliver air at its highest first speed, maximizing cooling or heating capacity and accelerating the overall indoor heat exchange rate; if the actual temperature difference is within the first preset value, it indicates a larger deviation between the actual and preset temperatures, indicating a higher heat load. In this case, the air conditioning unit operates at its highest power to quickly reduce the overall temperature difference. The air conditioning unit then sends a command to the compressor to operate at its highest first frequency, while simultaneously controlling the indoor fan to deliver air at its highest first speed, maximizing cooling or heating capacity and accelerating the overall indoor heat exchange rate. When the actual temperature difference is between the second preset value and the third preset value, it indicates that the overall indoor heat load is at a moderate level. It is not necessary to operate at full power. Maintaining moderate power is sufficient to steadily reduce the temperature difference. The air conditioning equipment controls the compressor to operate at the second frequency in the middle range, and at the same time controls the indoor fan to deliver air at the second speed in the middle range. This ensures heat exchange efficiency while avoiding unnecessary power waste. When the actual temperature difference is ≤ the second preset value, it indicates that the overall indoor temperature is close to the preset temperature and the heat load is low. It is only necessary to maintain low power operation to keep the temperature stable. The air conditioning equipment controls the compressor to operate at the third lowest frequency, and at the same time controls the indoor fan to deliver air at the third lowest speed. This minimizes operating energy consumption while maintaining temperature stability.

[0086] In some embodiments, the number of preset values ​​can be adjusted according to the actual usage scenario. For example, three preset values ​​can be set to divide four operating modes. As long as the compressor frequency and the internal fan speed can be adjusted in a gradient according to the actual temperature difference, the purpose of matching heat load and saving energy can be achieved.

[0087] The control unit 104 is further configured to control the opening degree of the return air valve at the corresponding return air inlet of each heat exchange zone according to the ambient temperature of each heat exchange zone. For the specific function and processing of this unit, please refer to step S130.

[0088] Different heat exchange zones have varying ambient temperatures and heating / cooling requirements. By adjusting the opening of the return air dampers at the corresponding return air vents, precise air distribution to different zones can be achieved, avoiding energy waste. Specifically, by comparing the ambient temperature and set temperature of each heat exchange zone, for zones with large temperature deviations, the opening of the corresponding return air vent dampers is increased to accelerate air circulation and improve heat exchange efficiency; for zones with small temperature deviations, the opening of the corresponding return air vent dampers is decreased to reduce unnecessary air circulation and lower ineffective energy consumption. Through this control, the air conditioning equipment achieves energy-saving effects.

[0089] In some embodiments, the control unit 104 controls the opening degree of the return air valve at the corresponding return air inlet of each heat exchange zone according to the ambient temperature of each heat exchange zone, including: calculating the absolute value of the difference between the ambient temperature of each heat exchange zone and a preset temperature, and determining the maximum absolute value of the difference; and determining the opening degree of the return air valve at the corresponding return air inlet according to the ratio of the absolute value of the difference between each heat exchange zone and the maximum absolute value of the difference.

[0090] In some implementations, the larger the ratio of the absolute value of the difference to the absolute value of the maximum difference, the larger the opening of the return air valve at the corresponding return air inlet.

[0091] The absolute value of the temperature difference between a single heat exchange zone and the preset temperature directly reflects the degree of deviation of that zone. The larger the deviation, the higher the heat load of that zone and the greater the demand for return air heat exchange. By calculating the ratio based on the maximum absolute value of the temperature difference, the heat load deviation of each zone can be converted into a relative proportion between 0 and 1. Adjusting the opening of the air valve based on this proportion can make the return air flow of each zone proportional to its own heat load demand, achieving precise control of more return air in areas with high heat load and less return air in areas with low heat load, thus avoiding ineffective return air energy consumption in a single zone.

[0092] Specifically, the air conditioning system first calculates the absolute value of the difference between the ambient temperature and the preset temperature for each heat exchange zone. Then, it selects the largest absolute value from all these differences and designates it as the maximum absolute value. For each heat exchange zone, it calculates the ratio of its absolute value to the maximum absolute value. Adjustments are made according to the positive correlation between this ratio and the damper opening: a larger ratio corresponds to a larger damper opening, and a smaller ratio corresponds to a smaller damper opening. The return air damper opening for the heat exchange zone corresponding to the maximum absolute value can be set to fully open.

[0093] In some embodiments, the opening of the return air damper The calculation formula is , This is the absolute value of the difference between the ambient temperature and the preset temperature in the heat exchange zone. The absolute value of the maximum difference is given by I, which represents the heat exchange zone of the I-th return air inlet.

[0094] This solution collects ambient temperatures from each heat exchange zone through distributed return air vents and coordinates the compressor frequency, indoor fan speed, and return air valve opening to enable energy-efficient air conditioning equipment to not only accurately adapt to the heating and cooling needs of different indoor areas, achieving uniform temperature control throughout the entire area and improving user comfort, but also avoid ineffective energy consumption and significantly reduce operating costs. It can also adapt to various apartment layouts such as rectangular, T-shaped, and L-shaped, as well as dynamic changes in heat load caused by factors such as occupant activity, sunlight intensity, and equipment heat dissipation, meeting the usage needs of different scenarios.

[0095] In some embodiments, the air outlet of the air conditioner is equipped with an air guide plate, and different air guiding sections of the air guide plate correspond one-to-one with each of the heat exchange areas. For air conditioner models with air guide plates (such as ducted air conditioners), setting air guiding sections that correspond one-to-one with each heat exchange area allows the air outlet to directly and directionally cover the target area, avoiding low heat exchange efficiency caused by dispersed air outlet.

[0096] In some embodiments, the control unit 104 is further configured to control the dwell time of the air guide plate in the corresponding air guide zone according to the opening degree of the return air valve at each of the return air inlets.

[0097] The opening degree of the return air damper is a direct reflection of the heat load of each heat exchange zone. The higher the heat load, the larger the opening degree of the return air damper, and the stronger the demand for directional air supply. By adjusting the residence time of the air guide plate in the corresponding air guide zone, the air supply resources can be tilted towards the high demand area, so as to achieve a precise match between return air demand and air supply, and avoid energy waste caused by indiscriminate air supply.

[0098] Specifically, the air conditioning equipment collects real-time data on the opening of the return air valves at each return air vent and analyzes the differences in heat load demand in different areas. For areas with large return air valve openings, the air guide vanes are controlled to extend their residence time in their corresponding air guide zones to increase directional air supply time. For areas with small return air valve openings, the residence time of the air guide vanes in their corresponding air guide zones is shortened to reduce unnecessary air supply consumption.

[0099] In some embodiments, the control unit 104 controls the dwell time of the air guide plate in the corresponding air guide zone according to the opening degree of the return air valve at each of the return air inlets, including: calculating the proportion of the opening degree of each of the return air valves in the total opening degree of all the return air valves; allocating the dwell time of the air guide plate in the corresponding air guide zone according to the proportion; the larger the proportion, the longer the corresponding dwell time.

[0100] The opening degree of the return air damper reflects the heat load demand of a single area, while the opening degree ratio can transform the demand of a single area into a relative proportion of the overall demand. The higher the opening degree ratio, the greater the proportion of the heat load demand of that area in the overall demand, and the stronger the demand for directional air supply. Through the allocation rule of "positive correlation between ratio and residence time", air supply resources can be tilted towards high demand areas, achieving a precise match between "demand intensity and air supply duration" and avoiding energy waste caused by indiscriminate air supply.

[0101] Specifically, the air conditioning equipment first collects the real-time opening values ​​of the return air valves at all return air vents, and adds all the opening values ​​to calculate the total opening. Then, for each heat exchange zone, the opening of its corresponding return air valve is divided by the total opening to obtain the proportion of return air valve opening in that zone. Based on the proportion of return air valve opening in each zone, a scheme for allocating the residence time of the air guide plate in the corresponding air guide zone is determined. The higher the proportion of the zone, the longer the residence time allocated to its corresponding air guide zone; the lower the proportion of the zone, the shorter the residence time. Through this control, the air conditioning equipment achieves energy-saving effects.

[0102] Since the processing and functions implemented by the device in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned methods, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0103] The technical solution of this invention provides an energy-saving air conditioning unit with multiple return air vents corresponding to different heat exchange zones within the room. Each return air vent is equipped with an independent return air valve. During control, the ambient temperature of each heat exchange zone is first acquired. Then, based on the temperature data of each zone, the compressor frequency and indoor fan speed are adjusted collaboratively. Simultaneously, the opening degree of the return air valve at the corresponding return air vent is controlled according to the temperature data of each zone, achieving precise temperature control across multiple zones. This improves the uniformity of indoor temperature, solves the problem of uneven heating and cooling in localized areas caused by traditional single-return-air-vent air conditioning, avoids ineffective energy consumption, and enhances the energy-saving effect of the air conditioning unit and its adaptability to various apartment layouts and variable heat load scenarios.

[0104] According to an embodiment of the present invention, an air conditioner corresponding to an air conditioner control device is also provided. This air conditioner may include the air conditioner control device described above.

[0105] Since the processing and functions implemented by the air conditioner in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned device, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0106] The technical solution of this invention provides an energy-saving air conditioning unit with multiple return air vents corresponding to different heat exchange zones within the room. Each return air vent is equipped with an independent return air valve. During control, the ambient temperature of each heat exchange zone is first acquired. Then, based on the temperature data of each zone, the compressor frequency and indoor fan speed are adjusted collaboratively. Simultaneously, the opening degree of the return air valve at the corresponding return air vent is controlled according to the temperature data of each zone, achieving precise temperature control across multiple zones. This improves the uniformity of indoor temperature, solves the problem of uneven heating and cooling in localized areas caused by traditional single-return-air-vent air conditioning, avoids ineffective energy consumption, and enhances the energy-saving effect of the air conditioning unit and its adaptability to various apartment layouts and variable heat load scenarios.

[0107] According to an embodiment of the present invention, a storage medium corresponding to an air conditioner control method is also provided, the storage medium including a stored program, wherein the program controls the device where the storage medium is located to execute the air conditioner control method described above when it is executed.

[0108] Since the processing and functions implemented by the storage medium in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned methods, any details not covered in this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0109] The technical solution of this invention provides an energy-saving air conditioning unit with multiple return air vents corresponding to different heat exchange zones within the room. Each return air vent is equipped with an independent return air valve. During control, the ambient temperature of each heat exchange zone is first acquired. Then, based on the temperature data of each zone, the compressor frequency and indoor fan speed are adjusted collaboratively. Simultaneously, the opening degree of the return air valve at the corresponding return air vent is controlled according to the temperature data of each zone, achieving precise temperature control across multiple zones. This improves the uniformity of indoor temperature, solves the problem of uneven heating and cooling in localized areas caused by traditional single-return-air-vent air conditioning, avoids ineffective energy consumption, and enhances the energy-saving effect of the air conditioning unit and its adaptability to various apartment layouts and variable heat load scenarios.

[0110] According to an embodiment of the present invention, a computer program product corresponding to the control method for an air conditioner is also provided. The computer program product includes a computer program that, when processed and executed, implements the steps of the control method for the air conditioner described above.

[0111] Since the processing and functions implemented by the computer program product in this embodiment are basically corresponding to the embodiments, principles and examples of the aforementioned methods, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0112] The technical solution of this invention provides an energy-saving air conditioning unit with multiple return air vents corresponding to different heat exchange zones within the room. Each return air vent is equipped with an independent return air valve. During control, the ambient temperature of each heat exchange zone is first acquired. Then, based on the temperature data of each zone, the compressor frequency and indoor fan speed are adjusted collaboratively. Simultaneously, the opening degree of the return air valve at the corresponding return air vent is controlled according to the temperature data of each zone, achieving precise temperature control across multiple zones. This improves the uniformity of indoor temperature, solves the problem of uneven heating and cooling in localized areas caused by traditional single-return-air-vent air conditioning, avoids ineffective energy consumption, and enhances the energy-saving effect of the air conditioning unit and its adaptability to various apartment layouts and variable heat load scenarios.

[0113] In summary, it is readily understood by those skilled in the art that, without conflict, the aforementioned advantageous methods can be freely combined and superimposed.

[0114] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that, The air conditioner includes multiple return air vents, each of which corresponds to a heat exchange zone in the room; each return air vent is equipped with a return air valve; the method includes: Obtain the ambient temperature of each heat exchange zone; The compressor frequency and indoor fan speed of the air conditioner are controlled according to the ambient temperature of each heat exchange zone. Based on the ambient temperature of each heat exchange zone, control the opening degree of the return air valve at the corresponding return air inlet of each heat exchange zone.

2. The air conditioning control method according to claim 1, characterized in that, Based on the ambient temperature of each heat exchange zone, the compressor frequency and indoor fan speed of the air conditioner are controlled, including: The absolute value of the difference between the average ambient temperature of each heat exchange zone and the preset temperature is recorded as the actual temperature difference, and the magnitude of the actual temperature difference is determined. If the actual temperature difference is greater than the first preset value, then the compressor is controlled to run at the first frequency and the internal fan is controlled to run at the first gear. If the actual temperature difference is less than or equal to the first preset value and greater than the second preset value, then the compressor is controlled to run at the second frequency and the internal fan is controlled to run at the second gear. If the actual temperature difference is less than or equal to the second preset value, then the compressor is controlled to run at the third frequency and the internal fan is controlled to run at the third gear. Among them, the first preset value > the second preset value, the first frequency > the second frequency > the third frequency, and the first gear > the second gear > the third gear.

3. The air conditioning control method according to claim 1, characterized in that, Based on the ambient temperature of each heat exchange zone, the opening degree of the return air valve at the corresponding return air inlet of each heat exchange zone is controlled, including: Calculate the absolute value of the difference between the ambient temperature and the preset temperature in each heat exchange zone, and determine the maximum absolute value of the difference. The opening degree of the return air valve at the corresponding return air inlet is determined based on the ratio of the absolute value of the difference between each heat exchange zone to the absolute value of the maximum difference.

4. The air conditioning control method according to claim 3, characterized in that, The larger the ratio of the absolute value of the difference to the absolute value of the maximum difference, the larger the opening of the return air valve at the corresponding return air inlet.

5. The air conditioning control method according to any one of claims 1 to 4, characterized in that, The air outlet of the air conditioner is equipped with an air guide plate, and the different air guiding sections of the air guide plate correspond one-to-one with each of the heat exchange areas; the method further includes: controlling the dwell time of the air guide plate in the corresponding air guiding section according to the opening degree of the return air valve at each of the return air inlets.

6. The air conditioning control method according to claim 5, characterized in that, The duration of the air guide plate's stay in the corresponding air guide zone is controlled according to the opening degree of the return air valve at each of the aforementioned return air inlets, including: Calculate the percentage of each return air damper opening in the total opening of all return air dampers; The duration of the air guide plate in the corresponding air guide zone is allocated according to the proportion; the larger the proportion, the longer the corresponding duration.

7. A control device for an air conditioner, characterized in that, The air conditioner includes multiple return air vents, each of which corresponds to a heat exchange zone in the room; each return air vent is equipped with a return air valve; the device includes: The acquisition unit is configured to acquire the ambient temperature of each of the heat exchange zones; The control unit is configured to control the compressor frequency and indoor fan speed of the air conditioner according to the ambient temperature of each heat exchange zone; The control unit is further configured to control the opening degree of the return air valve at the corresponding return air inlet of each heat exchange zone according to the ambient temperature of each heat exchange zone.

8. An air conditioner, characterized in that, include: The air conditioning control device as described in claim 7.

9. A storage medium, characterized in that, The storage medium includes a stored program, wherein, when the program is executed, it controls the device containing the storage medium to perform the air conditioning control method according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the air conditioning control method according to any one of claims 1 to 6.

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