Air conditioner control method, air conditioner indoor unit and air conditioner

Abstract

The application provides an air conditioner control method, an air conditioner indoor unit and an air conditioner. The air conditioner comprises the air conditioner indoor unit, the air conditioner indoor unit comprises a humidifying module, and the air conditioner control method comprises the following steps: acquiring real-time humidity RH of an indoor space and real-time temperature T of a ground surface in the indoor space; and adjusting main control actions and humidifying actions of the air conditioner indoor unit in different operation modes according to the real-time humidity RH and the real-time temperature T. The main control actions comprise at least one of adjusting an angle of a deflector of the air conditioner indoor unit, adjusting a rotating speed of a fan of the air conditioner indoor unit and adjusting an operation frequency of a compressor of the air conditioner. The humidifying actions comprise adjusting opening and closing of the humidifying module. The real-time temperature T of the ground surface and the real-time humidity RH of the indoor space are detected in combination, and temperature and humidity are controlled in cooperation, so that the comfort of air conditioner operation is improved significantly, and the technical problem that temperature and humidity of the air conditioner are difficult to control in cooperation in the related art, so that excessive humidification and warming are prone to occur is solved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to an air conditioning control method, an indoor air conditioning unit, and an air conditioner. Background Technology

[0002] In the field of air conditioning technology, air conditioners typically have cooling, heating, and humidification functions to achieve comfortable indoor environmental control. In practical applications, temperature control and humidity control often employ decoupled, independent logic.

[0003] However, this independent control strategy for temperature and humidity control means that the air conditioner cannot dynamically match humidity requirements based on temperature changes when adjusting the indoor environment, making coordinated temperature and humidity control difficult to achieve. For example, due to the lack of a linkage mechanism, in heating mode, as the room temperature rises, the relative humidity naturally decreases. If the humidification module cannot respond accurately, it is easy to over-humidify or under-humidify, causing the indoor humidity to deviate from the human comfort range. Summary of the Invention

[0004] The main objective of this invention is to provide an air conditioning control method, an indoor air conditioning unit, and an air conditioner, in order to solve the technical problem in related technologies where the temperature and humidity of the air conditioner are difficult to control in a coordinated manner, leading to situations such as over-humidification and overheating.

[0005] To achieve the above objectives, according to one aspect of the present invention, an air conditioning control method is provided, applicable to an air conditioner, the air conditioner including an indoor unit, the indoor unit including a humidification module, the air conditioning control method comprising:

[0006] Obtain the real-time indoor humidity (RH) and the real-time indoor floor temperature (T);

[0007] Based on the real-time humidity (RH) and real-time temperature (T), adjust the main control action and humidification action of the indoor unit of the air conditioner in different operating modes;

[0008] The main control actions include adjusting at least one of the following: adjusting the angle of the air guide plate of the indoor unit, adjusting the speed of the fan of the indoor unit, and adjusting the operating frequency of the compressor of the air conditioner; the humidification actions include adjusting the opening and closing of the humidification module.

[0009] Furthermore, based on real-time humidity (RH) and real-time temperature (T), the main control actions and humidification actions of the indoor air conditioning unit are adjusted in different operating modes, including:

[0010] Obtain the target temperature T0 at the indoor floor level;

[0011] When T0-T>t1, the main control action of the indoor unit of the air conditioner is first adjusted according to the real-time humidity RH in different operating modes, and then the humidification action is adjusted.

[0012] When T0-T≤t1, the humidification action of the indoor unit of the air conditioner is adjusted according to the real-time humidity RH in different operating modes.

[0013] Furthermore, when T0-T>t1, the main control action of the indoor unit of the air conditioner is first adjusted according to the real-time humidity RH under different operating modes, and then the humidification action is adjusted, including:

[0014] When RH≤RH2, first reduce the angle of the air guide plate of the indoor unit, increase the speed of the fan of the indoor unit, and increase the frequency of the compressor of the indoor unit, and then turn on the humidification module.

[0015] When RH2≤RH≤RH3, the angle of the air guide plate of the indoor unit, the speed of the fan of the indoor unit, and the operating frequency of the compressor of the air conditioner remain unchanged, and the humidification module is not turned on.

[0016] When RH3 < RH, first reduce the angle of the air guide plate of the indoor unit, increase or decrease the speed of the fan of the indoor unit, and increase the frequency of the compressor of the indoor unit. The humidification module is not turned on.

[0017] Furthermore, when RH≤RH2, first reduce the angle of the air guide vane of the indoor unit, increase the speed of the fan in the indoor unit, and increase the frequency of the compressor in the indoor unit, then turn on the humidification module, including:

[0018] When RH < RH1, first adjust the angle of the air guide plate of the indoor unit of the air conditioner to the first preset angle a1, adjust the speed of the fan of the indoor unit of the air conditioner to the first preset speed n1, and adjust the operating frequency of the compressor of the air conditioner to the first preset frequency f1, and then turn on the humidification module.

[0019] When RH1≤RH<RH2, first adjust the angle of the air guide plate of the indoor unit of the air conditioner to the second preset angle a2, adjust the speed of the fan of the indoor unit of the air conditioner to the second preset speed n2, and adjust the operating frequency of the compressor of the air conditioner to the second preset frequency f2, and then turn on the humidification module.

[0020] Wherein, RH1 < RH2 < RH3; and / or, a1 > a2; and / or, n1 > n2; and / or, f1 > f2.

[0021] Furthermore, 34% ≤ RH1 ≤ 36%; and / or,

[0022] 39% ≤ RH2 ≤ 41%; and / or,

[0023] 59% ≤ RH3 ≤ 61%; and / or,

[0024] The first preset angle a1 is the angle between the air guide plate of the indoor unit of the air conditioner and the vertical direction, 45°≤a1≤55°; and / or,

[0025] The second preset angle a2 is the angle between the air guide plate of the indoor unit of the air conditioner and the vertical direction, 40°≤a2≤45°; and / or,

[0026] The first preset speed n1 is 120% to 130% of the current speed of the fan in the indoor unit of the air conditioner; and / or,

[0027] The second preset speed n2 is 110% to 120% of the current speed of the fan in the indoor unit of the air conditioner; and / or,

[0028] The first preset frequency f1 is 105% to 115% of the current operating frequency of the air conditioner's compressor; and / or,

[0029] The second preset frequency f2 is 100% to 110% of the current operating frequency of the air conditioner's compressor.

[0030] Furthermore, when RH3 < RH, first reduce the angle of the air guide vane of the indoor unit, increase or decrease the speed of the fan in the indoor unit, and increase the frequency of the compressor in the indoor unit. The humidification module is not turned on, including:

[0031] When RH3 < RH ≤ RH4, the angle of the air guide plate of the indoor unit of the air conditioner is adjusted to the first preset angle a1, the speed of the fan of the indoor unit of the air conditioner is adjusted to the third preset speed n3, and the operating frequency of the compressor of the air conditioner is adjusted to the third preset frequency f3, and the humidification module is not turned on.

[0032] When RH4 < RH, the angle of the air guide plate of the indoor unit of the air conditioner is adjusted to the first preset angle a1, the speed of the fan of the indoor unit of the air conditioner is adjusted to the fourth preset speed n4, and the operating frequency of the compressor of the air conditioner is adjusted to the fourth preset frequency f4, and the humidification module is not turned on.

[0033] Wherein, RH2 < RH3 < RH4; and / or, n3 > n4; and / or, f4 > f3.

[0034] Furthermore, 39% ≤ RH2 ≤ 41%; and / or,

[0035] 59% ≤ RH3 ≤ 61%; and / or,

[0036] 64% ≤ RH4 ≤ 66%; and / or,

[0037] The first preset angle a1 is the angle between the air guide plate of the indoor unit of the air conditioner and the vertical direction, 45°≤a1≤55°; and / or,

[0038] The third preset speed n3 is 115% to 125% of the current speed of the fan in the indoor unit of the air conditioner; and / or,

[0039] The fourth preset speed n4 is 85% to 95% of the current speed of the fan in the indoor unit of the air conditioner; and / or,

[0040] The third preset frequency f3 is 110% to 120% of the current operating frequency of the air conditioner's compressor; and / or,

[0041] The fourth preset frequency f4 is 115% to 125% of the current operating frequency of the air conditioner's compressor.

[0042] Furthermore, when RH < RH1 and the humidification module is activated, the air conditioning control method also includes:

[0043] If RH < RH0 within a preset time period s;

[0044] The user is prompted to add water to the humidifier module;

[0045] Where RH0 < RH1.

[0046] Furthermore, when T0-T>t1, the main control action of the indoor unit of the air conditioner is first adjusted according to the real-time humidity RH under different operating modes, and then the humidification action is adjusted, including:

[0047] After adjusting the main control action, obtain the real-time return air temperature T1 of the indoor unit of the air conditioner;

[0048] When |T1-T0|>t2, the indoor unit of the air conditioner continues to operate while maintaining the current main control action;

[0049] When |T1-T0|≤t2, adjust the humidification action of the indoor unit of the air conditioner.

[0050] Furthermore, 0.3℃≤t1≤0.7℃; and / or,

[0051] 0.8℃≤t2≤1.2℃.

[0052] Furthermore, the humidification module includes a module housing and a liquid level detection unit, the liquid level detection unit being disposed on the module housing for detecting the real-time liquid level h inside the module housing; the air conditioning control method also includes:

[0053] When h < h1, the humidification module stops humidifying and triggers a water shortage buzzer; and / or,

[0054] When h > h2, the humidification module will be forcibly shut down and an overflow alarm will be issued.

[0055] Furthermore, the humidification module includes an evaporator core and a temperature detection unit, the temperature detection unit being disposed on the evaporator core for detecting the real-time temperature T2 of the evaporator core; the air conditioning control method also includes:

[0056] When T2 < t3, the temperature detection unit controls the heating of the evaporation core.

[0057] According to another aspect of the present invention, an air conditioner indoor unit is provided, applicable to the aforementioned air conditioning control method, the air conditioner indoor unit comprising:

[0058] The casing has air vents.

[0059] The fan is installed inside the casing;

[0060] The humidification module is located inside the housing. The humidification module includes a module housing, an evaporator core, and an air duct. The module housing is used to contain liquid. The opening of the module housing faces the air outlet and is connected to the air outlet. The evaporator core is located inside the module housing. The two ends of the air duct are connected to the fan and the module housing, respectively.

[0061] The control system is mounted on the casing and includes an acquisition module and an adjustment module. The acquisition module is configured to acquire the real-time indoor humidity RH, the real-time indoor floor temperature T, and the real-time return air temperature T1 of the indoor air conditioning unit. The adjustment module is configured to adjust the main control action and humidification action of the indoor air conditioning unit under different operating modes.

[0062] Furthermore, the humidification module also includes:

[0063] A liquid level detection unit, mounted on the module housing, is used to detect the real-time liquid level h inside the module housing; and / or,

[0064] A temperature detection unit is installed on the evaporation core to detect the real-time temperature T2 of the evaporation core.

[0065] Furthermore, the acquisition module includes:

[0066] A humidity sensor, mounted on the housing, is used to detect the real-time humidity (RH) in the room; and / or,

[0067] A first temperature sensor, located at the bottom of the casing, is used to detect the real-time temperature T at the indoor floor level. The probe of the first temperature sensor has a preset distance H between it and the indoor floor, where H ≤ 10 cm; and / or,

[0068] The second temperature sensor is located on the air inlet panel of the housing to detect the real-time return air temperature T1 of the indoor unit of the air conditioner.

[0069] According to another aspect of the present invention, an air conditioner is provided, including the aforementioned indoor air conditioner unit.

[0070] The present invention provides an air conditioning control method applicable to air conditioners. The air conditioner includes an indoor unit, which includes a humidification module. The air conditioning control method includes: acquiring the real-time indoor humidity (RH) and the real-time temperature (T) at the floor level; adjusting the main control actions and humidification actions of the indoor unit under different operating modes based on the real-time humidity (RH) and real-time temperature (T); wherein the main control actions include adjusting at least one of adjusting the angle of the air guide vane of the indoor unit, adjusting the speed of the fan of the indoor unit, and adjusting the operating frequency of the compressor of the air conditioner; the humidification actions include adjusting the opening and closing of the humidification module.

[0071] By combining real-time indoor floor temperature (T) and real-time indoor humidity (RH) detection, and through a temperature and humidity coordinated control strategy, the comfort and energy efficiency of air conditioning operation are significantly improved.

[0072] First, this method uses indoor floor temperature as the primary control target for the indoor unit of the air conditioner under different operating modes. Combined with precise adjustment of the air guide plate angle, fan speed and compressor frequency, it effectively overcomes the "hot head and cold feet" phenomenon caused by traditional air conditioners relying solely on return air temperature. It achieves rapid heating and precise stabilization of floor temperature, significantly reduces the vertical temperature difference in the room, and improves the user's foot comfort.

[0073] Secondly, through real-time humidity monitoring and intelligent linkage with the humidification module, the system can automatically match the humidification action according to the humidity range, avoiding the problems of over-humidification or dryness in the traditional independent control mode, ensuring that the indoor humidity is always maintained in the comfortable range, realizing the dynamic balance of temperature and humidity environment, and thus effectively solving the technical problem in related technologies that the temperature and humidity of air conditioners are difficult to control in a coordinated manner, which leads to over-humidification, overheating and other situations. Attached Figure Description

[0074] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0075] Figure 1 A control flowchart in heating mode is shown, according to an embodiment of the air conditioning control method of the present invention.

[0076] Figure 2 A control flowchart in cooling mode is shown, according to an embodiment of the air conditioning control method of the present invention.

[0077] Figure 3A first-view perspective three-dimensional structural schematic diagram of an embodiment of an air conditioner indoor unit according to the present invention is shown;

[0078] Figure 4 An exploded view of an embodiment of an air conditioner indoor unit according to the present invention is shown;

[0079] Figure 5 A second-view perspective three-dimensional structural schematic diagram of an embodiment of an air conditioner indoor unit according to the present invention is shown;

[0080] Figure 6 A perspective sectional view of an embodiment of an air conditioning indoor unit according to the present invention is shown.

[0081] The above figures include the following reference numerals:

[0082] 10. Housing;

[0083] 11. Vent;

[0084] 12. Air intake panel;

[0085] 20. Fan;

[0086] 30. Humidification module;

[0087] 31. Module housing;

[0088] 32. Evaporation core;

[0089] 33. Air duct. Detailed Implementation

[0090] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0091] Traditional cabinet air conditioners cause hot air to rise naturally during heating, and only the return air temperature in the upper part of the room is collected for control. This results in slow floor heating and uneven indoor temperature distribution, with the persistent problem of "hot head and cold feet," which seriously affects human comfort. Furthermore, the temperature and humidity controls of traditional air conditioners are independent and lack coordination logic, which can easily lead to over-humidification and conflicts between temperature and humidity targets, failing to achieve the optimal human comfort experience.

[0092] Please refer to Figure 1 and Figure 2 As shown, according to one aspect of the present invention, an air conditioning control method is provided, applicable to an air conditioner, the air conditioner including an indoor unit, the indoor unit including a humidification module 30, the air conditioning control method including:

[0093] Obtain the real-time indoor humidity (RH) and the real-time indoor floor temperature (T);

[0094] Based on the real-time humidity (RH) and real-time temperature (T), adjust the main control action and humidification action of the indoor unit of the air conditioner in different operating modes;

[0095] The main control actions include at least one of adjusting the angle of the air guide plate of the indoor unit, adjusting the speed of the fan 20 of the indoor unit, and adjusting the operating frequency of the compressor of the air conditioner; the humidification actions include adjusting the opening and closing of the humidification module 30.

[0096] It is evident that by combining the dual detection of real-time indoor floor temperature (T) and real-time indoor humidity (RH), and through a temperature and humidity coordinated control strategy, the comfort and energy efficiency of air conditioning operation are significantly improved.

[0097] First, this control method uses the indoor floor temperature as the primary control target for the indoor unit of the air conditioner in different modes such as heating, cooling, and standby. Combined with precise adjustment of the air guide plate angle, fan speed, and compressor frequency, it effectively overcomes the "hot head, cold feet" phenomenon caused by traditional air conditioners relying solely on return air temperature. It achieves rapid heating and precise stabilization of the floor temperature, significantly reduces the vertical temperature difference in the room, and improves the user's foot comfort.

[0098] Secondly, through real-time humidity monitoring and intelligent linkage with the humidification module 30, the system can automatically match the humidification action according to the humidity range, avoiding the problems of over-humidification or dryness in the traditional independent control mode, ensuring that the indoor humidity is always maintained in the comfortable range, realizing the dynamic balance of temperature and humidity environment, and thus effectively solving the technical problem in related technologies that the temperature and humidity of air conditioners are difficult to control in a coordinated manner, which leads to over-humidification, overheating and other situations.

[0099] Unlike traditional air conditioners that independently control temperature and humidity and lack coordinated logic, this application constructs a comprehensive temperature and humidity coordinated control strategy. The strategy clearly defines the main control actions and humidification actions of the air conditioner under different operating modes and humidity conditions, achieving intelligent matching of temperature and humidity. Whether in drying mode during heating, over-humidity or drying mode during cooling, or in fan-only or standby mode, the system automatically adjusts the air conditioner's operating status and the humidification module's on / off state. This avoids indoor dryness caused by "only controlling temperature, not humidity," or stuffiness and condensation caused by "over-humidification by the humidifier," consistently maintaining indoor temperature and humidity within the optimal comfort range for the human body. It adapts to the usage needs of different seasons and environments, comprehensively improving user comfort.

[0100] In this application, the indoor unit of the air conditioner is a cabinet air conditioner.

[0101] In some implementations, the main control actions and humidification actions of the indoor unit of the air conditioner are adjusted according to the real-time humidity (RH) and real-time temperature (T) under different operating modes, including:

[0102] Obtain the target temperature T0 at the indoor floor level;

[0103] When T0-T>t1, the main control action of the indoor unit of the air conditioner is first adjusted according to the real-time humidity RH in different operating modes, and then the humidification action is adjusted.

[0104] When T0-T≤t1, the humidification action of the indoor unit of the air conditioner is adjusted according to the real-time humidity RH in different operating modes.

[0105] When the difference between the actual indoor floor temperature T and the target temperature T0 exceeds the set threshold t1, it indicates an urgent need for floor heating. At this point, the system prioritizes the main control action, which involves adjusting the air guide vane angle, increasing the fan speed by 20 rpm, or increasing the compressor frequency to raise the floor temperature and ensure rapid heat transfer to the floor area. During this process, humidification is secondary. This "temperature first, humidity later" tiered control strategy effectively avoids excessive latent heat introduced by humidification or increased thermal resistance due to increased air humidity during the rapid heating phase. This ensures efficient floor temperature regulation and rapid response, preventing delays in reaching a comfortable floor temperature due to humidification interference.

[0106] When the actual indoor floor temperature T approaches the target temperature T0, i.e., the difference is less than or equal to the threshold t1, it indicates that the floor temperature has basically reached the target. At this point, the control logic shifts to humidity management, and the system directly adjusts the start and stop of the humidification module 30 based on the real-time humidity RH. This mechanism ensures that the indoor relative humidity is accurately maintained within the comfortable range under the premise of stable temperature. Through this dynamic switching based on temperature deviation, the system avoids energy waste caused by ineffective humidification during large temperature fluctuations, and also prevents dryness or over-humidity problems caused by uncontrolled humidity after the temperature stabilizes. This achieves coordinated linkage between temperature and humidity control, improving the overall logical rationality of the control.

[0107] Furthermore, this control method achieves a smooth transition between operating modes by setting a threshold t1 as the control boundary between temperature-priority and humidity-priority modes. This strategy not only optimizes the user's experience but also reduces wear and tear on the humidification module 30 and the potential risk of condensation by avoiding unnecessary humidification actions, thus extending the equipment's lifespan and improving the air conditioner's adaptive adjustment capabilities under complex operating conditions.

[0108] In some implementations, when T0-T > t1, the main control action of the indoor unit of the air conditioner is first adjusted according to the real-time humidity RH under different operating modes, and then the humidification action is adjusted, including:

[0109] When RH≤RH2, first reduce the angle of the air guide plate of the indoor unit, increase the speed of the fan 20 of the indoor unit, and increase the frequency of the compressor of the indoor unit, and then turn on the humidification module 30.

[0110] When RH2≤RH≤RH3, the angle of the air guide plate of the indoor unit of the air conditioner, the speed of the fan 20 of the indoor unit of the air conditioner, and the operating frequency of the compressor of the air conditioner remain unchanged, and the humidification module 30 is not turned on.

[0111] When RH3 < RH, first reduce the angle of the air guide plate of the indoor unit, increase or decrease the speed of the fan 20 of the indoor unit, and increase the frequency of the compressor of the indoor unit. The humidification module 30 is not turned on.

[0112] In different operating modes, the initial angle of the air guide plate of the indoor unit is perpendicular to the vertical direction. The angle of the air guide plate is reduced by rotating it downwards to blow air directly towards the ground.

[0113] When there is a large temperature difference between the indoor floor and the ambient humidity is low (RH≤RH2), the system adopts a combined strategy of "forced heating + instant humidification". By reducing the angle of the air guide plate, the hot air is delivered closer to the ground. At the same time, the fan speed and compressor frequency are increased to quickly increase the heat source output and solve the problem of slow floor heating.

[0114] During this powerful heating process, the humidification module 30 is activated simultaneously, effectively compensating for the natural decrease in relative humidity caused by the rise in temperature and preventing excessive dryness indoors. This synchronous adjustment mechanism ensures that while users experience rapid floor warming, the air humidity remains within a suitable range, avoiding the discomfort of "the hotter it gets, the drier it gets" that traditional air conditioning heating provides, thus enhancing the comfort experience in the initial stage.

[0115] When the ambient humidity is within the intermediate comfort range (RH2≤RH≤RH3), it falls within the safe humidity range. The parameters of the air guide plate, fan 20, and compressor remain constant, and the humidification module 30 is shut off. This logic avoids energy waste and potential condensation risks caused by ineffective humidification when humidity already meets human comfort requirements. By locking the temperature and humidity control variables, the system can maintain a continuous rise in floor temperature in the most stable operating state, ensuring both heating efficiency and ensuring that the indoor air is warm but not excessively humid, achieving the optimal balance between energy efficiency and comfort.

[0116] When the ambient humidity is high (RH3 < RH), the system continues to perform powerful heating to reduce the temperature difference between the floor and the ground, but the humidification module 30 is strictly prohibited from operating. Forced humidification in a high-humidity environment can easily lead to excessive indoor humidity, causing stuffiness and even condensation on walls and furniture surfaces, affecting residential safety and health.

[0117] Therefore, at this point, the system focuses entirely on temperature increase, accelerating floor heating by adjusting airflow and compressor power. Once the floor temperature reaches the target level, the system can switch to natural dehumidification or remain in standby mode, utilizing the air conditioner's own dehumidification capacity or natural ventilation to reduce humidity. This fundamentally eliminates the risk of over-humidification under high temperature and high humidity conditions, ensuring the safety of equipment operation and the stability of indoor air quality.

[0118] In some implementations, when RH≤RH2, the angle of the air guide vane of the indoor unit is first reduced, the speed of the fan 20 of the indoor unit is increased, and the frequency of the compressor of the indoor unit is increased, before the humidification module 30 is turned on, including:

[0119] When RH < RH1, first adjust the angle of the air guide plate of the indoor unit of the air conditioner to the first preset angle a1, adjust the speed of the fan 20 of the indoor unit of the air conditioner to the first preset speed n1, and adjust the operating frequency of the compressor of the air conditioner to the first preset frequency f1, and then turn on the humidification module 30.

[0120] When RH1≤RH<RH2, first adjust the angle of the air guide plate of the indoor unit of the air conditioner to the second preset angle a2, adjust the speed of the fan 20 of the indoor unit of the air conditioner to the second preset speed n2, and adjust the operating frequency of the compressor of the air conditioner to the second preset frequency f2, and then turn on the humidification module 30.

[0121] Wherein, RH1 < RH2 < RH3; and / or, a1 > a2; and / or, n1 > n2; and / or, f1 > f2.

[0122] When the indoor humidity is extremely low (RH < RH1), the system enters a high-intensity humidification and heating combined mode. At this time, the air guide plate angle is adjusted to a larger first preset angle a1, combined with the first preset high speed n1 and high frequency f1, aiming to forcefully and quickly guide hot air to the ground to cope with the large difference between the ground temperature and the target temperature.

[0123] While ensuring rapid floor heating, the humidification module 30 is activated, utilizing a high-flow airflow to accelerate the evaporation efficiency of the evaporation core 32. This combination of high airflow and high frequency not only shortens the floor heating time but also promotes humidification through strong airflow disturbance, quickly alleviating respiratory discomfort caused by severe dryness. It achieves the dual goals of "rapid heating" and "rapid humidification," significantly improving the user's initial comfort in extremely dry environments.

[0124] When the indoor humidity is in a low but not extreme range (RH1≤RH<RH2), the system adopts a moderate-intensity collaborative control strategy. The air guide vane angle, fan speed, and compressor frequency are adjusted to the second preset values ​​a2, n2, and f2, respectively, and these values ​​are all less than the first preset values ​​corresponding to RH<RH1.

[0125] Because the ambient humidity is relatively high at this time, the evaporation rate naturally accelerates, so maximum airflow is not required to meet the humidification needs. Appropriately reducing the fan speed 20 and compressor frequency can maintain the continuous rise in floor temperature while avoiding excessive evaporation and drastic humidity fluctuations due to excessive airflow, or energy waste caused by excessive heating. This graded adjustment mechanism allows the system to dynamically match the intensity of heating and humidification according to subtle changes in humidity, achieving more stable and energy-efficient humidity regulation while ensuring the floor temperature meets the target, thus extending the service life of the humidification module 30 and the compressor.

[0126] By setting three humidity thresholds (RH1, RH2, and RH3) and corresponding preset parameters, this solution constructs a refined temperature and humidity coordinated control gradient. Within different humidity ranges, the system automatically switches to the most suitable combination of airflow, angle, and frequency, avoiding issues of adjustment lag or over-adjustment. For example, it increases airflow in low-humidity areas to assist evaporation, decreases airflow in high-humidity areas to prevent over-humidification, and maintains balance in intermediate areas to save energy. This adaptive adjustment based on humidity-graded parameters not only improves the air conditioner's responsiveness to environmental changes but also ensures the optimal balance between floor temperature regulation efficiency and humidity control accuracy throughout the entire heating and humidification process, thereby continuously providing a stable, comfortable, and energy-efficient thermal and humidity environment in complex and ever-changing indoor environments.

[0127] In some embodiments, 34% ≤ RH1 ≤ 36%; preferably, RH1 is 35%.

[0128] In some embodiments, 39% ≤ RH2 ≤ 41%; preferably, RH2 is 40%.

[0129] In some embodiments, 59% ≤ RH3 ≤ 61%; preferably, RH3 is 60%.

[0130] In some embodiments, the first preset angle a1 is the angle between the air guide plate of the indoor unit of the air conditioner and the vertical direction, 45°≤a1≤55°; preferably, the first preset angle a1 is 50°.

[0131] In some embodiments, the second preset angle a2 is the angle between the air guide plate of the indoor unit of the air conditioner and the vertical direction, 40°≤a2≤45°; preferably, the second preset angle a2 is 40°.

[0132] In some embodiments, the first preset speed n1 is 120% to 130% of the current speed of the fan 20 of the indoor unit of the air conditioner; preferably, the first preset speed n1 is 125%.

[0133] In some embodiments, the second preset speed n2 is 110% to 120% of the current speed of the fan 20 of the indoor unit of the air conditioner; preferably, the second preset speed n2 is 115%.

[0134] In some embodiments, the first preset frequency f1 is 105% to 115% of the current operating frequency of the air conditioner's compressor; preferably, the first preset frequency f1 is 110%.

[0135] In some implementations, the second preset frequency f2 is 100% to 110% of the current operating frequency of the air conditioner's compressor; the first preset frequency and the second preset frequency f2 are 105%.

[0136] In some implementations, when RH3 < RH, the angle of the air guide vane of the indoor unit is reduced, the speed of the fan 20 of the indoor unit is increased or decreased, and the frequency of the compressor of the indoor unit is increased, while the humidification module 30 is not turned on, including:

[0137] When RH3<RH≤RH4, the angle of the air guide plate of the indoor unit of the air conditioner is adjusted to the first preset angle a1, the speed of the fan 20 of the indoor unit of the air conditioner is adjusted to the third preset speed n3, and the operating frequency of the compressor of the air conditioner is adjusted to the third preset frequency f3, and the humidification module 30 is not turned on.

[0138] When RH4 < RH, the angle of the air guide plate of the indoor unit of the air conditioner is adjusted to the first preset angle a1, the speed of the fan 20 of the indoor unit of the air conditioner is adjusted to the fourth preset speed n4, and the operating frequency of the compressor of the air conditioner is adjusted to the fourth preset frequency f4, and the humidification module 30 is not turned on.

[0139] Wherein, RH2 < RH3 < RH4; and / or, n3 > n4; and / or, f4 > f3.

[0140] When the indoor humidity is in the slightly to moderately high range (RH3 < RH ≤ RH4), the system implements an optimized heating strategy that primarily focuses on heating the floor. At this time, the angle of the air guide plate is fixed at the first preset angle a1 to ensure that hot air is delivered directionally to the floor area, solving the problem of "hot head and cold feet".

[0141] By setting the fan speed 20 to the third preset speed n3 and the compressor frequency to the third preset frequency f3, the system prioritizes increasing the total heat output by increasing the compressor frequency, while simultaneously using a moderate airflow (n3) to quickly deliver heat to the floor. Since the humidity has not yet reached a severely excessive level, disabling the humidifier module 30 prevents additional moisture from entering the air, thus avoiding exacerbating the stuffy feeling indoors. This strategy rapidly increases the floor temperature while maintaining a dry and comfortable air environment, avoiding increased thermal resistance due to high humidity, and ensuring users can rest in a warm but not stuffy environment.

[0142] When the indoor humidity is severely exceeded (RH4 < RH), the system switches to a special operating mode that combines powerful dehumidification and floor heating. Although the air guide plate angle remains at the first preset angle a1 to focus on floor heating, the fan speed 20 is reduced to the fourth preset speed n4, while the compressor frequency is further increased to the fourth preset frequency f4.

[0143] This combination of "low airflow and high compression" is a typical characteristic of air conditioning dehumidification operation: reducing the airflow speed prolongs the residence time of air on the evaporator surface, enhancing the condensation dehumidification effect; increasing the compressor frequency significantly reduces the evaporator surface temperature, strengthening dehumidification capacity. Although the primary goal at this time is dehumidification, the system does not stop monitoring the floor temperature. The additional heat generated by the high-frequency compressor, combined with directional airflow, still compensates to some extent for the coolness that people may feel in high humidity environments. Not activating the humidification module 30 is absolutely necessary to prevent further deterioration of humidity. This strategy effectively solves the contradiction of wanting to raise the temperature in high humidity environments but fearing increased stuffiness. While rapidly reducing indoor humidity, it maintains the floor temperature as stable as possible, preventing excessive dryness or large temperature differences indoors due to over-dehumidification.

[0144] By introducing a higher threshold of RH4 and the corresponding combination of n4 and f4 parameters, this solution improves the control logic in high humidity environments. Compared to the RH3 < RH ≤ RH4 range, in the RH4 < RH range, by reducing the fan speed (n4 < n3) and increasing the frequency (f4 > f3), a smooth transition from "auxiliary heating" to "forced dehumidification" is achieved. This tiered processing mechanism ensures that the air conditioner can find the optimal operating balance point under different humidity pressures: when the humidity is not extremely high, the focus is on heating comfort; when the humidity is extremely high, the focus is on dehumidification urgency, while also ensuring that the ground temperature does not drop suddenly. This not only improves the applicability of the air conditioner in the rainy season or high humidity areas, but also avoids ineffective energy consumption through precise airflow and frequency matching, achieving dual optimization of dehumidification efficiency and thermal comfort.

[0145] In some embodiments, 39% ≤ RH2 ≤ 41%; preferably, RH2 is 40%.

[0146] In some embodiments, 59% ≤ RH3 ≤ 61%; preferably, RH3 is 60%.

[0147] In some implementations, 64% ≤ RH4 ≤ 66%; preferably, RH4 is 65%.

[0148] In some embodiments, the first preset angle a1 is the angle between the air guide plate of the indoor unit of the air conditioner and the vertical direction, 45°≤a1≤55°; preferably, the first preset angle a1 is 50°.

[0149] In some embodiments, the third preset speed n3 is 115% to 125% of the current speed of the fan 20 of the indoor unit of the air conditioner; preferably, the third preset speed n3 is 120%.

[0150] In some embodiments, the fourth preset speed n4 is 85% to 95% of the current speed of the fan 20 of the indoor unit of the air conditioner; preferably, the fourth preset speed n4 is 90%.

[0151] In some embodiments, the third preset frequency f3 is 110% to 120% of the current operating frequency of the air conditioner's compressor; preferably, the third preset frequency f3 is 115%.

[0152] In some embodiments, the fourth preset frequency f4 is 115% to 125% of the current operating frequency of the air conditioner's compressor; preferably, the fourth preset frequency f4 is 120%.

[0153] In some implementations, when RH < RH1 and the humidification module 30 is turned on, the air conditioning control method further includes:

[0154] If RH < RH0 within a preset time period s;

[0155] The user is prompted to add water to the humidifier module 30;

[0156] Where RH0 < RH1.

[0157] In this embodiment, RH0 is 30%, and the preset time s is 1 hour.

[0158] When the indoor humidity is extremely low (RH < RH1) and the humidifier module 30 is operating at high frequency, the water consumption rate in the water tank accelerates significantly. By monitoring humidity changes over a preset time period (s), if the humidity consistently falls below a lower threshold RH0, it indicates that the humidifier module 30 is continuously outputting a large amount of water vapor in an attempt to increase the ambient humidity. This often means that the water level in the storage chamber is rapidly decreasing. At this point, the system proactively prompts the user to replenish water, providing early warning of water shortage risks. This prevents the humidifier pump from running dry or the heating element from burning out due to the water tank running low, effectively protecting the core components of the humidifier module 30, extending the equipment's lifespan, and preventing hardware damage caused by water shortage.

[0159] In some implementations, when T0-T > t1, the main control action of the indoor unit of the air conditioner is first adjusted according to the real-time humidity RH under different operating modes, and then the humidification action is adjusted, including:

[0160] After adjusting the main control action, obtain the real-time return air temperature T1 of the indoor unit of the air conditioner;

[0161] When |T1-T0|>t2, the indoor unit of the air conditioner continues to operate while maintaining the current main control action;

[0162] When |T1-T0|≤t2, adjust the humidification action of the indoor unit of the air conditioner.

[0163] When |T1-T0|>t2, it indicates that the temperature difference between the adjusted indoor floor temperature and the target floor temperature is large, and the upper area has not yet reached a comfortable temperature. At this time, the main control action continues to run to ensure that heat can continue to diffuse to the upper space, avoiding the neglect of the overall room temperature increase in pursuit of the floor temperature to meet the standard, and achieving balanced regulation of the whole house temperature.

[0164] When |T1-T0|≤t2, it indicates that the difference between the return air temperature (i.e., the adjusted indoor floor temperature) and the target floor temperature has narrowed to within the safe threshold t2. At this point, the overall room temperature is close to the target value, and continuing to provide strong heating may cause the upper space to overheat or even exceed the standard. The system then switches to humidification, marking a formal transition from "temperature priority" to "humidity coordination." This logic ensures that humidity adjustment only intervenes when the overall temperature environment is relatively stable, avoiding interference with temperature control due to latent heat exchange caused by humidification during periods of rapid temperature increase, thus improving the stability and accuracy of temperature control.

[0165] In this way, the heating is first triggered by the deviation of the ground temperature, then the end of the heating phase is confirmed by the deviation of the return air temperature, and finally the humidification is started. This phased and progressive control strategy not only optimizes energy distribution and prevents energy waste, but also ensures the smoothness of indoor temperature and humidity changes, avoiding temperature fluctuations or sudden changes in humidity caused by control logic conflicts, thus providing users with a highly comfortable indoor environment that is both warm and humid, with a suitable temperature difference between the upper and lower parts of the room.

[0166] In some implementations, 0.3℃≤t1≤0.7℃; preferably, t1 is 0.5℃.

[0167] Preferably, 0.8℃≤t2≤1.2℃, where t2 is 1.0℃.

[0168] In some embodiments, the humidification module 30 includes a module housing 31 and a liquid level detection unit, the liquid level detection unit being disposed on the module housing 31 for detecting the real-time liquid level h within the module housing 31; the air conditioning control method further includes:

[0169] When h < h1, the humidification module 30 stops humidifying and triggers a water shortage buzzer.

[0170] When h > h2, the humidification module 30 will be forcibly shut down and an overflow alarm will be issued.

[0171] When the real-time liquid level h inside the module housing 31 is detected to be lower than the first preset liquid level h1, the system immediately cuts off the power supply to the humidification module 30, stops the humidification operation, and activates a water shortage buzzer warning. The core function of this mechanism is to protect the core components of the humidification module 30, such as the water pump and the evaporator core 32. If operation continues when the water level is insufficient, the water pump may run dry, leading to overheating and damage, or the evaporator core 32 may be heated in a waterless state, causing dry burning or even a fire hazard.

[0172] By promptly shutting down and issuing alarms, the system not only prevents physical damage to the hardware and extends the service life of the equipment, but also reminds users to add water in time through intuitive audio and visual prompts, ensuring that the humidification function operates continuously and stably within a safe water level range, thus enhancing users' peace of mind.

[0173] When the system detects that the real-time liquid level h is higher than the second preset level h2, it will forcibly shut down the humidification module 30 and issue an overflow alarm. This protection logic is designed to prevent liquid overflow caused by excessive water replenishment or float malfunction. Air conditioner cabinet units are usually placed in living areas such as living rooms. If the top humidification module 30 leaks, water can easily drip onto the floor or furniture, causing property damage or the risk of slipping. It may also seep into the electrical components and cause a short circuit.

[0174] By forcibly shutting off and triggering an alarm, the water supply can be cut off immediately, minimizing the risk of leakage. This liquid level monitoring mechanism (low water level protection and high water level overflow prevention) constitutes a complete water circuit safety protection, eliminating two common faults—dry burning due to water shortage and water overflow and electrical leakage—from the source, significantly improving the safety and environmental adaptability of air conditioning products.

[0175] In some embodiments, the humidification module 30 includes an evaporator core 32 and a temperature detection unit, the temperature detection unit being disposed on the evaporator core 32 for detecting the real-time temperature T2 of the evaporator core 32; the air conditioning control method further includes:

[0176] When T2 < t3, the temperature detection unit controls the heating of the evaporation core 32.

[0177] This application incorporates multiple safety protection mechanisms into the design of the top humidification module 30 to ensure long-term stable operation of the equipment. On the one hand, a liquid level detection unit is configured to monitor the water level in the water storage chamber of the module housing 31 in real time. When a low water level is detected, humidification is immediately stopped and a water shortage warning is issued. When a high water level is detected, humidification is forcibly shut off and an overflow alarm is issued, effectively avoiding the potential hazards of water shortage damaging components or overflow leakage.

[0178] On the other hand, a temperature detection unit (i.e., an anti-condensation micro-heating unit) is added. In winter, when the temperature of the evaporator core 32 is detected to be lower than the dew point temperature, heating is automatically activated to prevent condensation and dripping on the core surface, thus eliminating damage to furniture and floors caused by dripping water. Simultaneously, the mist-free evaporator core 32 uses hydrophilic polymer materials or fiber paper (with uniform pore size of 0.1-0.5mm) to achieve natural evaporative humidification, fundamentally eliminating the problem of white mist easily generated by traditional humidifiers, further improving the safety and reliability of the equipment operation.

[0179] The following are two exemplary embodiments of this application:

[0180] Example 1: Ground temperature priority control and humidification linkage in winter heating mode

[0181] 1. Initial conditions: Room area 25㎡, outdoor temperature 0℃, user settings: target room temperature 22℃, target ground temperature 24℃, target humidity 45%. The air conditioner unit is installed in the corner of the living room.

[0182] 2. Start-up Phase: The air conditioner starts in heating mode, with the main fan speed at 800 rpm. The air deflector is horizontal by default, meaning it is perpendicular to the vertical direction. The ground temperature sensor detects an initial ground temperature of 16℃, and the return air temperature sensor detects 18℃. The humidity sensor detects an RH of 32% (belonging to the "severely dry" range, corresponding to RH < 35% in heating mode).

[0183] 3. Ground temperature priority adjustment: The MCU calculates the ground temperature deviation t=24-16=8℃, triggering the ground temperature priority closed loop: the main fan speed is gradually increased to 1000rpm; the air guide plate is rotated to the "strong downward" angle (the angle between the air outlet and the vertical direction is 50°); the compressor frequency is increased to 110% of the rated frequency. At the same time, the return air temperature limit is detected: at this time, the return air temperature is 19.5℃, which does not exceed the upper limit (set 22℃+1℃=23℃), and further increase is allowed.

[0184] 4. Temperature and Humidity Coordinated Operation: According to the control strategy, when RH=32% (severely dry), the air conditioning main control prioritizes maintaining the ground temperature and moderately increases the target ground temperature by 0.5℃ to increase evaporation; the humidification module 30 is forcibly activated, the solenoid valve is fully open, and the main fan airflow passes through the evaporator core 32 for natural evaporation humidification without the generation of white mist; because the temperature of the evaporator core 32 is higher than the dew point, the anti-condensation heater is not activated. If RH<30% for one consecutive hour, the system will prompt the user to add water.

[0185] 5. Steady-state adjustment: After 25 minutes of operation, the ground temperature rose to 23.5℃, close to the target of 24℃, with a deviation of only 0.5℃. The MCU gradually reduced the fan speed of 20 to 900rpm, and the compressor frequency was slightly reduced to maintain the ground temperature fluctuating between 23.8~24.2℃. The return air temperature reached 22.3℃, within the limit. The humidity rose to 47% (entering the comfort range), and the air conditioning main control normally implemented ground temperature priority control. The humidification module 30 closed the solenoid valve, and the evaporator core 32 air-dried naturally, entering steady-state operation.

[0186] 6. Disturbance Response: One minute after the user opens the door, the floor temperature drops sharply to 21°C. The MCU immediately increases the fan speed by 20 and the compressor frequency again, prioritizing the restoration of the floor temperature rather than blindly maintaining the return air temperature. After 30 seconds, the floor temperature returns to 23.5°C, ensuring that the floor temperature priority control logic in the control strategy continues to be implemented.

[0187] Comparative example: If a traditional air conditioner that only detects the return air temperature is used, under the same conditions, the floor temperature may always be below 20°C, while the head area may reach 24°C, making the user feel "cold feet and hot head". This embodiment effectively avoids this problem by combining floor temperature priority control with a temperature and humidity coordination strategy.

[0188] Example 2: Synergistic effect of summer cooling and deep dehumidification

[0189] 1. Initial conditions: Room area 25㎡, outdoor temperature 35℃, user settings: target cooling temperature 24℃, target humidity 50%. When the air conditioner is turned on, the indoor temperature is 26℃ and RH=68% (which is in the "severely humid" range, corresponding to the cooling mode RH>65%).

[0190] 2. Operation Process: The air conditioner starts in cooling mode. According to the control strategy, in cooling mode, the ground temperature sensor only monitors and does not participate in priority control. The humidity sensor detects RH=68%>65%, triggering the temperature and humidity coordination logic, and the air conditioner switches to deep dehumidification mode: reducing the fan speed by 20 (from 1000rpm to 900rpm) to increase the surface temperature of the heat exchanger; increasing the compressor frequency to 120% of the rated value; the humidification module 30 is not turned on.

[0191] 3. Steady-state and closed-loop control: After 15 minutes of operation, when the RH drops to 55% (entering the comfort range), the system automatically exits the deep dehumidification mode and resumes normal cooling control (fan 20 returns to 1000rpm, compressor frequency is reduced). If the humidity subsequently rises again to >65%, it will re-enter deep dehumidification, forming a closed-loop control to ensure that the indoor humidity remains stable within the comfort range.

[0192] Example 3: Low water level protection and anti-condensation linkage

[0193] 1. Low water level protection scenario: During the heating and humidification process in winter, the water level sensor in the water storage chamber detects a low water level, which corresponds to the protection logic of "any mode - low water level" in the control strategy.

[0194] Action: Humidifier module 30 is disabled from humidifying and issues a water shortage warning (displaying an icon or beeping); the air conditioner heating mode continues to operate normally (ground temperature is prioritized and unaffected); after the user adds water, the water level returns to normal, and the humidification function automatically resumes, ensuring equipment safety and user experience.

[0195] 2. Anti-condensation trigger scenario: In winter low temperature conditions, the temperature of the evaporator core 32 drops below the dew point temperature. Combined with the protection logic of the humidification module 30 in the control strategy, the controller automatically starts the anti-condensation micro heating unit (8W) to heat the edge of the evaporator core 32 until the temperature rises back to a safe range, preventing water dripping from the top and avoiding safety hazards.

[0196] It should be noted that the above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. This embodiment only elaborates on common household scenarios (living room) and typical seasonal conditions (heating in winter and cooling in summer). In practical applications, this application can be adapted to indoor spaces of different sizes (such as bedrooms, studies, etc.) and different outdoor environmental temperatures and humidity conditions. It can strictly follow the above-mentioned temperature and humidity coordinated control strategy to achieve precise control of floor temperature (heating mode), coordinated temperature and humidity regulation (all operating conditions), and the implementation of various protection logics. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this invention.

[0197] Please refer to Figures 3 to 6As shown, according to another aspect of the present invention, an air conditioning indoor unit is provided, which is applicable to the air conditioning control method mentioned above. The air conditioning indoor unit includes a housing 10, a fan 20, a humidification module 30, and a control system.

[0198] The housing 10 is provided with an air vent 11;

[0199] The fan 20 is installed inside the casing 10;

[0200] The humidification module 30 is disposed inside the housing 10. The humidification module 30 includes a module housing 31, an evaporation core 32, and an air guide duct 33. The module housing 31 is used to contain liquid. The opening of the module housing 31 is arranged facing the air outlet 11 and is connected to the air outlet 11. The evaporation core 32 is disposed inside the module housing 31. The two ends of the air guide duct 33 are connected to the fan 20 and the module housing 31, respectively.

[0201] The control system is mounted on the housing 10. The control system includes an acquisition module and an adjustment module. The acquisition module is configured to acquire the real-time humidity RH, the real-time temperature T at the indoor floor, and the real-time return air temperature T1 of the indoor air conditioner unit. The adjustment module is configured to adjust the main control action and humidification action of the indoor air conditioner unit under different operating modes.

[0202] Because traditional cabinet air conditioners often lack humidification functions, users need to purchase separate humidifiers, which cannot be linked with the air conditioner for control. Furthermore, existing air conditioners with humidification functions often require independent fans (20), resulting in structural redundancy, high overall cost, and loud operating noise. Additionally, traditional humidifiers are prone to producing white mist and condensation, posing safety hazards, especially at low temperatures. This application integrates a top-mounted mist-free evaporative humidification module (30) that shares the main fan with the air conditioner. Combined with a mist-free evaporative core (32), water level detection, and an anti-condensation micro-heating unit, it achieves a high degree of integration between the humidification function and the air conditioner. This solves the problem of poor humidification linkage, eliminates the hazards of white mist and condensation, and reduces costs.

[0203] This air conditioner indoor unit achieves seamless integration of humidification and main unit air duct through a unique structural layout. The opening of the module housing 31 of the humidification module 30 directly faces and connects to the air outlet 11, and together with the air guide duct 33, the airflow generated by the fan 20 is directly introduced into the module housing 31. This design eliminates the need for an additional independent fan 20 during the humidification process. Instead, it directly utilizes the airflow power of the main indoor fan of the air conditioner to carry away moisture as the air flows through the evaporation core 32, achieving mist-free evaporative humidification. This integrated structure not only significantly simplifies the internal structure of the entire unit, reducing the number of parts and assembly complexity, but also effectively reduces noise pollution and energy consumption caused by adding an independent fan 20. This allows the equipment to maintain efficient humidification while still maintaining low noise and low power consumption operation, improving the overall quiet experience and energy efficiency.

[0204] The control system's built-in acquisition module can collect real-time indoor humidity (RH), floor temperature (T), and return air temperature (T1), providing comprehensive environmental data support for the adjustment module. Based on this data and combined with the aforementioned control logic, the adjustment module dynamically coordinates the main control actions of the air conditioner (such as the angle of the air guide vane, the speed of the fan 20, and the compressor frequency) with the start / stop and power of the humidification module 30. This multi-parameter fusion sensing and control capability enables the air conditioner to accurately identify the current thermal and humidity environment, such as distinguishing between different operating conditions like "cold and dry floor" and "hot and excessively humid overall," thereby executing corresponding coordinated control strategies. This not only solves the comfort problems caused by the separation of temperature and humidity control in traditional air conditioners but also ensures the uniformity of indoor temperature distribution and the suitability of humidity through the dual protection of floor temperature priority and return air temperature limitation, significantly improving the user's perceived comfort.

[0205] Furthermore, the evaporator core 32 inside the humidification module 30, in conjunction with the module housing 31 and the water level monitoring logic of the control system, further enhances the safety and reliability of the equipment. When the acquisition module detects a large temperature difference between the ground and the target temperature, the system prioritizes strengthening heating; when the temperature difference narrows, humidification is then activated based on the humidity level. This deep coupling of structure and control logic ensures that humidification is only performed under suitable temperature conditions, avoiding the risk of condensation caused by low temperature and high humidity. Simultaneously, the connection between the module housing 31 and the air outlet 11 ensures that the humidified air is quickly and evenly dispersed into the room, preventing excessively high local humidity. Overall, this indoor unit achieves efficient, safe, and comfortable temperature and humidity regulation through a combination of structural innovation and intelligent control.

[0206] In some embodiments, the humidification module 30 further includes a liquid level detection unit and a temperature detection unit;

[0207] The liquid level detection unit is installed on the module housing 31 to detect the real-time height h of the liquid inside the module housing 31;

[0208] A temperature detection unit is installed on the evaporation core 32 to detect the real-time temperature T2 of the evaporation core 32.

[0209] The liquid level detection unit monitors the liquid level h inside the module housing 31 in real time, establishing a water level safety barrier for the humidification module 30. When the water level falls below the safety threshold, the system immediately stops humidification and issues an alarm, effectively preventing the water pump from running dry and the evaporator core 32 from burning out, thus avoiding hardware damage and potential fire risks caused by water shortage.

[0210] Meanwhile, the high-level liquid level detection can immediately identify potential overflow hazards, preventing water from overflowing the casing and damaging internal circuits or dripping onto the ground and causing safety risks. This precise monitoring of the liquid level ensures that the humidification process always operates within a safe water level range, extending the equipment's lifespan and enhancing user peace of mind.

[0211] A temperature detection unit is deployed on the evaporator core 32 to acquire its surface temperature T2 in real time, providing crucial data support for anti-condensation protection. In low-temperature heating or high-humidity environments during winter, the surface temperature of the evaporator core 32 is very likely to be lower than the ambient dew point temperature, causing moisture in the air to condense into water droplets or even drip onto the core surface.

[0212] By monitoring T2, the system can preemptively activate the anti-condensation micro-heating unit to heat the core when the temperature is detected to be close to the dew point, or adjust the fan speed to change the airflow velocity, thereby maintaining the core temperature above the dew point. This mechanism eliminates the phenomenon of water dripping from the top at the source, protecting furniture and floors from water stains, while also avoiding the risk of electrical short circuits caused by water dripping, ensuring stable operation of the equipment under complex climatic conditions.

[0213] In some implementations, the acquisition module includes a humidity sensor, a first temperature sensor, and a second temperature sensor.

[0214] A humidity sensor is mounted on the housing 10 to detect the real-time humidity (RH) in the room.

[0215] The first temperature sensor is located at the bottom of the housing 10 to detect the real-time temperature T of the indoor floor. The probe of the first temperature sensor has a preset distance H between it and the indoor floor, where H ≤ 10 cm. A first floor temperature sensor is installed on the front side of the bottom of the air conditioner unit or on the bottom housing. The probe is ≤ 10 cm above the ground and faces the ground, avoiding direct airflow. It is used to detect the real-time ground radiation temperature or near-ground air temperature. At the same time, a conventional return air temperature sensor (i.e., the second temperature sensor) is retained at the air conditioner inlet, forming a dual temperature measurement layout.

[0216] To address the uneven temperature distribution caused by the natural upward movement of hot air and the reliance on only upper return air temperature measurements in traditional cabinet heating systems, this application employs a floor temperature sensor (the primary temperature sensor) at the bottom and a floor temperature-priority dual-closed-loop control logic to achieve precise temperature control. The floor temperature control accuracy reaches ±0.5℃, accurately tracking the user-set target floor temperature. During heating operation, by adjusting the main fan speed, air guide angle (for powerful downward airflow), and compressor frequency, hot air is precisely directed to the floor, accelerating floor heating and effectively reducing the temperature difference between the upper and lower levels of the room.

[0217] The housing 10 includes an air inlet panel 12, on which a second temperature sensor is disposed to detect the real-time return air temperature T1 of the indoor unit of the air conditioner.

[0218] The second temperature sensor (return air temperature sensor) is located on the air intake panel 12. Although floor temperature is the primary regulation target, the return air temperature reflects the overall average temperature level of the room.

[0219] By retaining a second temperature sensor, the control system can monitor the temperature changes of the ground in real time after the main control action is adjusted. When the return air temperature approaches the set upper limit, the system will automatically limit the heating power or adjust the air supply strategy to ensure that while raising the ground temperature, the overall room temperature is maintained within a reasonable range, thus achieving a balance between comfort and energy saving.

[0220] According to another aspect of the present invention, an air conditioner is provided, including the aforementioned indoor air conditioner unit.

[0221] This air conditioner upgrades from simple temperature control to multi-dimensional environmental comfort management by integrating an indoor unit with ground temperature sensing and coordinated temperature and humidity control capabilities. Thanks to the indoor unit's dual-temperature sensing layout and ground-priority control logic, the unit effectively addresses the traditional "hot head, cold feet" problem of traditional floor-standing air conditioners in heating mode. It ensures heat is precisely delivered to the user's feet while maintaining a comfortable head temperature, thus fundamentally improving winter heating comfort. This combination of structure and control strategy transforms the air conditioner from a mere temperature regulator into an intelligent environmental terminal that proactively adapts to human thermal perception and optimizes vertical temperature distribution within the room.

[0222] In terms of humidification, this air conditioner eliminates the space occupation, noise interference, and safety hazards associated with traditional split-type humidifiers through a highly integrated mist-free evaporative humidification module 30. Utilizing the main fan's airflow to drive humidification not only simplifies the internal structure and reduces manufacturing costs but also achieves seamless integration between the humidification process and air conditioning operation. Combined with real-time humidity monitoring and an anti-condensation protection mechanism, the air conditioner ensures humidification efficiency while preventing the generation of white mist and the risk of dripping water from the top, ensuring healthy, clean, and safe humidified air during dry seasons. This enhances users' respiratory comfort and peace of mind when using the equipment for extended periods under air conditioning.

[0223] Furthermore, this air conditioner achieves intelligent matching of temperature and humidity management through a coordinated temperature and humidity control strategy. The system can automatically switch between different operating modes, such as heating, cooling, dehumidification, and humidification, based on the real-time indoor temperature and humidity status, avoiding the excessive dryness or stuffiness problems caused by the separate temperature and humidity control of the past. This intelligent adjustment capability under all operating conditions not only optimizes energy efficiency and reduces unnecessary energy waste, but also ensures that the indoor environment is always within the optimal comfort range for the human body. Whether in the harsh winter or the sweltering summer, this air conditioner can provide a stable, balanced, and delicate thermal and humidity environment.

[0224] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0225] By combining real-time indoor floor temperature (T) and real-time indoor humidity (RH) detection, and through a coordinated temperature and humidity control strategy, the comfort and energy efficiency of air conditioning operation are significantly improved. First, this method uses indoor floor temperature as the primary control target for the indoor unit under different operating modes. Combined with precise adjustments to the air guide vane angle, fan speed, and compressor frequency, it effectively overcomes the "hot head, cold feet" phenomenon caused by traditional air conditioners relying solely on return air temperature. This achieves rapid and precise temperature rise and stabilization of the floor, significantly reducing the vertical temperature difference and improving the comfort of the user's foot area. Second, through intelligent linkage between real-time humidity monitoring and the humidification module 30, the system can automatically match humidification actions according to the humidity range, avoiding over-humidification or dehydration problems in traditional independent control modes. This ensures that indoor humidity is always maintained within a comfortable range, achieving a dynamic balance between temperature and humidity. This effectively solves the technical problem in related technologies where temperature and humidity are difficult to control in tandem, leading to over-humidification or overheating.

[0226] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0227] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0228] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0229] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0230] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0231] The above description is merely a preferred 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 protection of the present invention.

Claims

1. An air conditioning control method, applicable to an air conditioner, the air conditioner including an indoor unit, characterized in that, The indoor unit of the air conditioner includes a humidification module (30), and the air conditioner control method includes: Obtain the real-time indoor humidity (RH) and the real-time indoor floor temperature (T); Based on the real-time humidity RH and the real-time temperature T, adjust the main control action and humidification action of the indoor unit of the air conditioner in different operating modes; The main control action includes at least one of adjusting the angle of the air guide plate of the indoor unit of the air conditioner, adjusting the speed of the fan (20) of the indoor unit of the air conditioner, and adjusting the operating frequency of the compressor of the air conditioner; the humidification action includes adjusting the opening and closing of the humidification module (30).

2. The air conditioning control method according to claim 1, characterized in that, The step of adjusting the main control actions and humidification actions of the indoor unit of the air conditioner under different operating modes based on the real-time humidity RH and the real-time temperature T includes: Obtain the target temperature T0 at the indoor floor level; When T0-T>t1, the main control action of the indoor unit of the air conditioner is first adjusted according to the real-time humidity RH in different operating modes, and then the humidification action is adjusted. When T0-T≤t1, the humidification action of the indoor unit of the air conditioner is adjusted according to the real-time humidity RH in different operating modes.

3. The air conditioning control method according to claim 2, characterized in that, When T0-T>t1, the main control action of the indoor unit of the air conditioner is first adjusted according to the real-time humidity RH in different operating modes, and then the humidification action is adjusted, including: When RH≤RH2, first reduce the angle of the air guide plate of the indoor air conditioner, increase the speed of the fan (20) of the indoor air conditioner, and increase the frequency of the compressor of the indoor air conditioner, and then turn on the humidification module (30). When RH2≤RH≤RH3, the angle of the air guide plate of the indoor unit of the air conditioner, the speed of the fan (20) of the indoor unit of the air conditioner, and the operating frequency of the compressor of the air conditioner remain unchanged, and the humidification module (30) is not turned on. When RH3 < RH, first reduce the angle of the air guide plate of the indoor air conditioner, increase or decrease the speed of the fan (20) of the indoor air conditioner, and increase the frequency of the compressor of the indoor air conditioner. The humidification module (30) is not turned on.

4. The air conditioning control method according to claim 3, characterized in that, When RH≤RH2, first reduce the angle of the air guide plate of the indoor unit, increase the speed of the fan (20) of the indoor unit, and increase the frequency of the compressor of the indoor unit, and then turn on the humidification module (30), including: When RH < RH1, first adjust the angle of the air guide plate of the indoor unit of the air conditioner to the first preset angle a1, adjust the speed of the fan (20) of the indoor unit of the air conditioner to the first preset speed n1, and adjust the operating frequency of the compressor of the air conditioner to the first preset frequency f1, and then turn on the humidification module (30). When RH1≤RH<RH2, first adjust the angle of the air guide plate of the indoor unit of the air conditioner to the second preset angle a2, adjust the speed of the fan (20) of the indoor unit of the air conditioner to the second preset speed n2, and adjust the operating frequency of the compressor of the air conditioner to the second preset frequency f2, and then turn on the humidification module (30). Wherein, RH1 < RH2 < RH3; and / or, a1 > a2; and / or, n1 > n2; and / or, f1 > f2.

5. The air conditioning control method according to claim 4, characterized in that, 34% ≤ RH1 ≤ 36%; and / or, 39% ≤ RH2 ≤ 41%; and / or, 59% ≤ RH3 ≤ 61%; and / or, The first preset angle a1 is the angle between the air guide plate of the indoor unit of the air conditioner and the vertical direction, 45°≤a1≤55°; and / or, The second preset angle a2 is the angle between the air guide plate of the indoor unit of the air conditioner and the vertical direction, 40°≤a2≤45°; and / or, The first preset rotational speed n1 is 120% to 130% of the current rotational speed of the fan (20) of the indoor unit of the air conditioner; and / or, The second preset speed n2 is 110% to 120% of the current speed of the fan (20) of the indoor unit of the air conditioner; and / or, The first preset frequency f1 is 105% to 115% of the current operating frequency of the air conditioner's compressor; And / or, The second preset frequency f2 is 100% to 110% of the current operating frequency of the air conditioner's compressor.

6. The air conditioning control method according to claim 3, characterized in that, When RH3 < RH, the following steps are taken: first, reduce the angle of the air guide plate of the indoor unit of the air conditioner, increase or decrease the speed of the fan (20) of the indoor unit of the air conditioner, and increase the frequency of the compressor of the indoor unit of the air conditioner. The humidification module (30) is not turned on. When RH3<RH≤RH4, the angle of the air guide plate of the indoor unit of the air conditioner is adjusted to the first preset angle a1, the speed of the fan (20) of the indoor unit of the air conditioner is adjusted to the third preset speed n3, and the operating frequency of the compressor of the air conditioner is adjusted to the third preset frequency f3, and the humidification module (30) is not turned on. When RH4 < RH, the angle of the air guide plate of the indoor unit of the air conditioner is adjusted to the first preset angle a1, the speed of the fan (20) of the indoor unit of the air conditioner is adjusted to the fourth preset speed n4, and the operating frequency of the compressor of the air conditioner is adjusted to the fourth preset frequency f4, and the humidification module (30) is not turned on. Wherein, RH2 < RH3 < RH4; and / or, n3 > n4; and / or, f4 > f3.

7. The air conditioning control method according to claim 6, characterized in that, 39% ≤ RH2 ≤ 41%; and / or, 59% ≤ RH3 ≤ 61%; and / or, 64% ≤ RH4 ≤ 66%; and / or, The first preset angle a1 is the angle between the air guide plate of the indoor unit of the air conditioner and the vertical direction, 45°≤a1≤55°; and / or, The third preset rotational speed n3 is 115% to 125% of the current rotational speed of the fan (20) of the indoor unit of the air conditioner; and / or, The fourth preset speed n4 is 85% to 95% of the current speed of the fan (20) of the indoor unit of the air conditioner; and / or, The third preset frequency f3 is 110% to 120% of the current operating frequency of the air conditioner's compressor; And / or, The fourth preset frequency f4 is 115% to 125% of the current operating frequency of the air conditioner's compressor.

8. The air conditioning control method according to claim 4, characterized in that, When RH < RH1, and the humidification module (30) is turned on, the air conditioning control method further includes: If RH < RH0 within a preset time period s; The user is prompted to add water to the humidification module (30); Where RH0 < RH1.

9. The air conditioning control method according to claim 2, characterized in that, When T0-T>t1, the main control action of the indoor unit of the air conditioner is first adjusted according to the real-time humidity RH in different operating modes, and then the humidification action is adjusted, including: After adjusting the main control action, the real-time return air temperature T1 of the indoor unit of the air conditioner is obtained; When |T1-T0|>t2, the indoor unit of the air conditioner continues to operate while maintaining the current main control action; When |T1-T0|≤t2, adjust the humidification action of the indoor unit of the air conditioner.

10. The air conditioning control method according to claim 9, characterized in that, 0.3℃≤t1≤0.7℃; and / or, 0.8℃≤t2≤1.2℃。 11. The air conditioning control method according to claim 1, characterized in that, The humidification module (30) includes a module housing (31) and a liquid level detection unit. The liquid level detection unit is disposed on the module housing (31) to detect the real-time height h of the liquid inside the module housing (31). The air conditioning control method further includes: When h < h1, the humidification module (30) is controlled to stop humidifying and triggers a water shortage buzzer; and / or, When h > h2, the humidification module (30) is forcibly shut down and an overflow alarm is issued.

12. The air conditioning control method according to claim 1, characterized in that, The humidification module (30) includes an evaporator core (32) and a temperature detection unit. The temperature detection unit is disposed on the evaporator core (32) to detect the real-time temperature T2 of the evaporator core (32). The air conditioning control method further includes: When T2 < t3, the temperature detection unit is controlled to heat the evaporation core (32).

13. An indoor unit for an air conditioner, applicable to the air conditioning control method according to any one of claims 1 to 12, characterized in that, The indoor unit of the air conditioner includes: The housing (10) is provided with an air vent (11). A fan (20) is installed inside the housing (10); A humidification module (30) is disposed inside the housing (10). The humidification module (30) includes a module housing (31), an evaporator core (32), and an air duct (33). The module housing (31) is used to contain liquid. The opening of the module housing (31) is arranged facing the air outlet (11) and is connected to the air outlet (11). The evaporator core (32) is disposed inside the module housing (31). The two ends of the air duct (33) are connected to the fan (20) and the module housing (31) respectively. The control system is installed on the housing (10). The control system includes an acquisition module and an adjustment module. The acquisition module is configured to acquire the real-time humidity RH, the real-time temperature T at the indoor ground, and the real-time return air temperature T1 of the indoor air conditioner. The adjustment module is configured to adjust the main control action and humidification action of the indoor air conditioner under different operating modes.

14. The indoor unit of the air conditioner according to claim 13, characterized in that, The humidification module (30) also includes: A liquid level detection unit is disposed on the module housing (31) for detecting the real-time height h of the liquid inside the module housing (31); and / or, A temperature detection unit is installed on the evaporation core (32) to detect the real-time temperature T2 of the evaporation core (32).

15. The indoor unit of the air conditioner according to claim 13, characterized in that, The acquisition module includes: A humidity sensor, disposed on the housing (10), is used to detect the real-time humidity (RH) of the room; and / or, A first temperature sensor is disposed at the bottom of the housing (10) to detect the real-time temperature T at the indoor floor. The probe of the first temperature sensor has a preset distance H between it and the indoor floor, where H ≤ 10 cm; and / or, The second temperature sensor is disposed on the air inlet panel (12) of the housing (10) to detect the real-time return air temperature T1 of the indoor unit of the air conditioner.

16. An air conditioner, characterized in that, The indoor unit of the air conditioner includes any one of claims 13 to 15.

Images