Anti-condensation control method and device and air treatment equipment

Abstract

The invention discloses an anti-condensation control method and device and air treatment equipment, and relates to the technical field of air treatment equipment, the anti-condensation control method is used for the air treatment equipment, and the anti-condensation control method comprises the steps that when the air treatment equipment works in an anti-condensation mode, a first indoor temperature is obtained, and after a first preset duration, a second indoor temperature is obtained; and according to the difference value between the second indoor temperature and the first indoor temperature, the working frequency of a compressor of the air treatment equipment is determined, and the compressor is controlled to operate at the working frequency. According to the anti-condensation control method provided by the invention, the first indoor temperature and the second indoor temperature are compared, and the subsequent working frequency is judged according to the difference between the first indoor temperature and the second indoor temperature, so that the condition that the refrigeration efficiency is reduced in the anti-condensation mode can be avoided, and the refrigeration stability of the air treatment equipment is improved.

Description

Technical Field

[0001] This invention relates to the field of air handling equipment technology, and in particular to an anti-condensation control method, device, and air handling equipment. Background Technology

[0002] Air handling units, such as inverter air conditioners, exhibit good cooling performance initially upon startup, but after running for a period of time, they need to enter anti-condensation mode to prevent condensate from dripping or being blown out. Currently, inverter air conditioners reduce their operating frequency to avoid condensation.

[0003] Currently, when a variable frequency air conditioner enters the anti-condensation mode, the cooling capacity decreases due to the reduced frequency. This causes the indoor temperature to rise after a certain period of time in anti-condensation mode compared to the temperature before entering the anti-condensation mode. This temperature change is noticeable to users and affects their comfort experience. Therefore, traditional variable frequency air conditioners suffer from insufficient cooling stability when entering anti-condensation mode. Summary of the Invention

[0004] The main objective of this invention is to provide an anti-condensation control method, device, and air handling equipment, which aims to improve the cooling stability of the air handling equipment after it enters the anti-condensation mode.

[0005] To achieve the above objectives, the present invention proposes an anti-condensation control method for use in air handling equipment, the anti-condensation control method comprising:

[0006] When the air handling unit is operating in anti-condensation mode, a first indoor temperature is obtained, and a second indoor temperature is obtained after a first preset time.

[0007] Based on the difference between the second indoor temperature and the first indoor temperature, the operating frequency of the air handling unit's compressor is determined, and the compressor is controlled to operate at the operating frequency.

[0008] In one embodiment, the operating frequency includes an anti-condensation frequency and a cooling frequency, wherein the anti-condensation frequency is less than the cooling frequency;

[0009] The step of determining the operating frequency of the air handling equipment after the first preset time period based on the difference between the first indoor temperature and the second indoor temperature, and controlling the compressor to operate at the operating frequency, includes:

[0010] When the difference between the first indoor temperature and the second indoor temperature is greater than a first preset difference, the operating frequency is determined to be the cooling frequency, and the compressor is controlled to operate at the cooling frequency.

[0011] When the difference between the first indoor temperature and the second indoor temperature is less than or equal to a first preset difference, the operating frequency is determined to be the anti-condensation frequency, and the compressor is controlled to operate at the anti-condensation frequency.

[0012] In one embodiment, after determining the operating frequency as the cooling frequency and controlling the compressor to operate at the cooling frequency when the difference between the first indoor temperature and the second indoor temperature is greater than a first preset difference, the method further includes:

[0013] After controlling the compressor to run at the cooling frequency for a second preset time, the third indoor temperature is obtained;

[0014] The operating frequency of the compressor is determined based on the difference between the third indoor temperature and the first indoor temperature, and the compressor is controlled to operate at the operating frequency.

[0015] In one embodiment, the step of determining the operating frequency of the compressor based on the difference between the third indoor temperature and the first indoor temperature includes:

[0016] When the difference between the third indoor temperature and the first indoor temperature is greater than a second preset difference, the operating frequency is determined to be the cooling frequency.

[0017] When the difference between the third indoor temperature and the first indoor temperature is less than or equal to a second preset difference, the operating frequency is determined to be the anti-condensation frequency.

[0018] In one embodiment, after determining the operating frequency as the anti-condensation frequency when the difference between the third indoor temperature and the first indoor temperature is less than or equal to a second preset difference, the method further includes:

[0019] After controlling the compressor to operate at the anti-condensation frequency for a first preset time, the process returns to the steps of obtaining the second indoor temperature, determining the operating frequency of the air handling unit's compressor based on the difference between the second indoor temperature and the first indoor temperature, and controlling the compressor to operate at the operating frequency.

[0020] In one embodiment, after the step of determining the operating frequency as the anti-condensation frequency and controlling the compressor to operate at the anti-condensation frequency when the difference between the first indoor temperature and the second indoor temperature is less than or equal to a first preset difference, the method further includes:

[0021] After controlling the compressor to operate at the anti-condensation frequency for a first preset time, the process returns to the steps of obtaining the second indoor temperature, determining the operating frequency of the air handling unit's compressor based on the difference between the second indoor temperature and the first indoor temperature, and controlling the compressor to operate at the operating frequency.

[0022] In one embodiment, after the step of determining the operating frequency as the cooling frequency and controlling the compressor to operate at the cooling frequency when the difference between the first indoor temperature and the second indoor temperature is greater than a first preset difference, the method further includes:

[0023] The number of times the compressor is controlled to operate at the cooling frequency is counted. When the number of times the compressor operates at the cooling frequency exceeds a preset number, the air handling equipment is controlled to exit the anti-condensation mode.

[0024] In one embodiment, the cooling frequency is the highest operating frequency corresponding to the current outdoor temperature;

[0025] And / or, the cooling frequency is the highest operating frequency of the air handling equipment in the cooling mode;

[0026] And / or, the cooling frequency is the operating frequency of the air handling equipment before it enters the anti-condensation mode.

[0027] In one embodiment, before the steps of acquiring a first indoor temperature when the air handling unit is operating in anti-condensation mode, and acquiring a second indoor temperature after a first preset time, the method further includes:

[0028] The operating parameters and environmental parameters of the air handling equipment are obtained, and when the operating parameters and environmental parameters of the air handling equipment meet the working conditions of the anti-condensation mode, the air handling equipment is controlled to work in the anti-condensation mode.

[0029] In one embodiment, the anti-condensation mode operating conditions include at least one or more of the following conditions:

[0030] The air handling unit operates in cooling mode for a third preset duration.

[0031] The cooling temperature difference is greater than the third preset temperature difference, where the cooling temperature difference is the temperature change of the room after the air handling equipment has been working in the cooling mode for a fourth preset duration.

[0032] The air handling equipment operates at a fourth outdoor temperature, and the fourth indoor temperature is lower than the indoor temperature.

[0033] In one embodiment, the air handling equipment's fan speed operation mode includes a set fan speed operation mode and an automatic fan speed operation mode;

[0034] The step of determining the operating frequency of the air handling equipment after the first preset time period based on the difference between the first indoor temperature and the second indoor temperature includes:

[0035] Obtain the air speed operation mode of the air handling equipment;

[0036] When the difference between the first indoor temperature and the second indoor temperature is greater than the first preset difference, and the air handling equipment is in the set wind operation mode, the operating frequency is determined to be the cooling frequency.

[0037] Set the air handling equipment to automatic fan speed mode and control the compressor to operate at the cooling frequency.

[0038] The present invention also provides an anti-condensation control device, the anti-condensation control device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor; the computer program is configured to implement the anti-condensation control method as described in any of the above claims.

[0039] The present invention also provides an air handling device, the air handling device including the anti-condensation control device described above, the anti-condensation control device being used to control the anti-condensation operation of the air handling device.

[0040] In one embodiment, the air handling equipment includes an air conditioner.

[0041] In summary, this anti-condensation control method aims to improve the cooling stability of air handling equipment after it enters anti-condensation mode. Specifically, this method involves first acquiring the initial indoor temperature at the moment the air handling equipment enters anti-condensation mode using a built-in temperature sensor or an externally connected temperature and humidity sensor. Then, after a first preset time, the second indoor temperature is acquired. The system's control module adjusts the compressor's operating frequency based on the difference between the first and second indoor temperatures. For example, if the temperature difference exceeds a certain level, indicating an excessive rise in room temperature that is easily noticeable to the user, a higher operating frequency is required to prevent this from being detected. Thus, this anti-condensation control method improves the cooling stability of the air handling equipment after it enters anti-condensation mode. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0043] Figure 1 A flowchart of the first embodiment of the anti-condensation control method provided by the present invention;

[0044] Figure 2A flowchart of the second embodiment of the anti-condensation control method provided by the present invention;

[0045] Figure 3 A flowchart of the third embodiment of the anti-condensation control method provided by the present invention;

[0046] Figure 4 A flowchart of the fourth embodiment of the anti-condensation control method provided by the present invention;

[0047] Figure 5 A flowchart of the fifth embodiment of the anti-condensation control method provided by the present invention;

[0048] Figure 6 A flowchart of the sixth embodiment of the anti-condensation control method provided by the present invention;

[0049] Figure 7 A flowchart of the seventh embodiment of the anti-condensation control method provided by the present invention;

[0050] Figure 8 A flowchart of the eighth embodiment of the anti-condensation control method provided by the present invention;

[0051] Figure 9 This is a flowchart of the ninth embodiment of the anti-condensation control method provided by the present invention.

[0052] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0054] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0055] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0056] It should be noted that step designations such as S100 and S200 are used in this document for the purpose of more clearly and concisely describing the corresponding content, and do not constitute a substantial limitation on the order. In specific implementation, those skilled in the art may execute S200 first and then S100, etc., but these should all be within the protection scope of this application.

[0057] Air handling units, such as inverter air conditioners, exhibit good cooling performance initially upon startup, but after running for a period of time, they need to enter anti-condensation mode to prevent condensate from dripping or being blown out. Currently, inverter air conditioners reduce their operating frequency to avoid condensation.

[0058] Currently, when a variable frequency air conditioner enters the anti-condensation mode, the cooling capacity decreases due to the reduced frequency. This causes the indoor temperature to rise after a certain period of time in anti-condensation mode compared to the temperature before entering the anti-condensation mode. This temperature change is noticeable to users and affects their comfort experience. Therefore, traditional variable frequency air conditioners suffer from insufficient cooling stability when entering anti-condensation mode.

[0059] To achieve the above objectives, the present invention proposes an anti-condensation control method for use in air handling equipment.

[0060] It is understood that the anti-condensation control method proposed in this invention can be applied to various air handling equipment to improve the cooling stability and user comfort of these devices in anti-condensation mode. Specifically, it can be applied to inverter air conditioners, refrigeration equipment, dehumidifiers, central air conditioning systems, and vehicle air conditioning systems, etc. Any equipment that needs to control air temperature by controlling frequency can utilize the anti-condensation control method provided by this invention to improve the cooling stability of the corresponding equipment.

[0061] Reference Figure 1In one embodiment, the anti-condensation control method may include steps S100 to S200.

[0062] In one embodiment, step S100 involves acquiring a first indoor temperature while the air handling equipment is operating in anti-condensation mode, and acquiring a second indoor temperature after a first preset time period.

[0063] Understandably, after the air handling unit enters anti-condensation mode, it first acquires the indoor temperature at the moment of entering anti-condensation mode and records it as the first indoor temperature. Then, after controlling the air handling unit to operate in anti-condensation mode for a first preset duration, it acquires the current indoor temperature and records it as the second indoor temperature. The first preset duration can be half an hour or longer; it can be a reasonable value determined based on experiments or experience, aiming to observe sufficient temperature changes for adjustments. After obtaining the first and second indoor temperatures, both can be used for subsequent judgments, and the operating frequency of the air handling unit can be determined based on the judgment results to avoid condensation.

[0064] In one embodiment, step S200 involves determining the operating frequency of the compressor of the air handling equipment based on the difference between the second indoor temperature and the first indoor temperature, and controlling the compressor to operate at the operating frequency.

[0065] Understandably, based on the difference between the first and second indoor temperatures obtained in step S100 (which can be calculated by subtracting the difference between the first and second indoor temperatures), the system calculates a suitable compressor operating frequency. Specifically, if the difference between the second and first indoor temperatures is large, it indicates that the anti-condensation mode has caused a significant temperature rise. In this case, the system will appropriately increase the compressor operating frequency to enhance the cooling effect and reduce room temperature fluctuations. Conversely, if the temperature difference is small or within a preset acceptable range, the current frequency will be maintained or slightly adjusted. Through this dynamic adjustment method based on actual temperature changes, the air handling unit can maintain a more stable indoor temperature while ensuring no condensation is produced, thereby improving user comfort. In short, step S200, through intelligent control of the compressor operating frequency, balances the relationship between anti-condensation requirements and cooling performance, ensuring optimal performance of the equipment under different environmental conditions.

[0066] Furthermore, the first indoor temperature and the second indoor temperature can be detected by the temperature sensor built into the air handling unit or by an externally connected temperature and humidity sensor, and the corresponding temperature signal is sent to the controller built into the air handling unit or the built-in anti-condensation control device, so as to perform the processing work of calculating and judging the first indoor temperature and the second indoor temperature.

[0067] It should be noted that step S100 can be executed immediately upon entering the anti-condensation mode to obtain the first and second indoor temperatures; alternatively, step S100 can be executed after the anti-condensation mode has been in operation for a period of time to obtain the first and second indoor temperatures. This embodiment uses the former method, which ensures that the temperature change is determined upon entering the anti-condensation mode, thereby better improving the cooling stability of the air handling equipment.

[0068] It should be explained that the operating frequency can include the anti-condensation frequency and the cooling frequency. The anti-condensation frequency is lower than the cooling frequency. At the anti-condensation frequency, condensation can be effectively avoided, but it may lead to a decrease in cooling capacity. At the cooling frequency, the cooling capacity can reach the ideal state, but condensation may occur.

[0069] In addition, air handling equipment includes a compressor, and the cooling capacity of the air handling equipment can be controlled by controlling the operating frequency of the compressor. The lower the operating frequency, the lower the cooling capacity; the higher the operating frequency, the higher the cooling capacity.

[0070] In summary, this anti-condensation control method aims to improve the cooling stability of air handling equipment after it enters anti-condensation mode. Specifically, this method involves first acquiring the initial indoor temperature at the moment the air handling equipment enters anti-condensation mode using a built-in temperature sensor or an externally connected temperature and humidity sensor. Then, after a first preset time, the second indoor temperature is acquired. The system's control module adjusts the compressor's operating frequency based on the difference between the first and second indoor temperatures. For example, if the temperature difference exceeds a certain level, indicating an excessive rise in room temperature that is easily noticeable to the user, a higher operating frequency is required to prevent this from being detected. Thus, this anti-condensation control method improves the cooling stability of the air handling equipment after it enters anti-condensation mode.

[0071] Reference Figure 2 In one embodiment, step S200 may further include steps S211 and S212.

[0072] In one embodiment, step S211 involves determining the operating frequency as the cooling frequency when the difference between the first indoor temperature and the second indoor temperature is greater than a first preset difference, and controlling the compressor to operate at the cooling frequency.

[0073] Understandably, if the calculated temperature difference exceeds the first preset temperature difference, it indicates that the temperature rise caused by the anti-condensation mode is significant and has affected user comfort. In this case, the system will determine a higher operating frequency, namely the cooling frequency. The cooling frequency aims to enhance the air conditioner's cooling capacity to quickly lower the indoor temperature and restore it to the user's desired level. By increasing the compressor's operating frequency, the air handling unit can provide more cooling capacity, effectively addressing the temperature rise caused by the anti-condensation mode. This not only quickly restores indoor comfort but also ensures stable cooling performance while preventing condensation.

[0074] In this embodiment, the cooling frequency is the operating frequency corresponding to the highest current outdoor temperature, so as to eliminate the corresponding temperature difference as quickly as possible and improve the user experience.

[0075] In one embodiment, step S212 involves determining the operating frequency as an anti-condensation frequency when the difference between the first indoor temperature and the second indoor temperature is less than or equal to a first preset difference, and controlling the compressor to operate at the anti-condensation frequency.

[0076] It is understandable that when the difference between the first indoor temperature and the second indoor temperature is less than or equal to the first preset difference, it indicates that the current anti-condensation mode has little impact on the indoor temperature and does not significantly affect the user's comfort experience. At this time, the system continues to operate at the anti-condensation frequency. This ensures that no condensate is generated while minimizing the compressor's operating power, thus saving energy and extending the equipment's lifespan. By maintaining the anti-condensation frequency, the air handling unit can maintain its anti-condensation effect while avoiding unnecessary energy consumption. This ensures efficient operation of the equipment while also addressing energy-saving needs, allowing the air handling unit to flexibly adjust under different conditions and achieve an optimal balance between performance and user experience. In this embodiment, the anti-condensation frequency is the operating frequency of the air handling unit when it enters the anti-condensation mode.

[0077] It's important to note that the first preset temperature difference is a threshold set based on experiments or actual application scenarios. When applied to inverter air conditioners, this first preset temperature difference can be between 2 and 5 degrees Celsius. This is because when the temperature difference exceeds 2 degrees Celsius, the human body can perceive the corresponding temperature change; and if the temperature difference exceeds 5 degrees Celsius, taking remedial action becomes relatively late, and the user may already be dissatisfied. Therefore, different first preset temperature differences can be set for different scenarios to determine whether the temperature change has reached a level requiring intervention.

[0078] For steps S211 and S212, the first preset difference is 2 degrees Celsius. An example can be given as follows: When the air handling unit enters anti-condensation mode, it first acquires the current indoor temperature (denoted as the first indoor temperature T1a), then controls the compressor to run at the anti-condensation frequency for a first preset duration t1, and then acquires the indoor temperature again (denoted as the second indoor temperature T1b). Next, it calculates the difference S1 between the second indoor temperature T1b and the first indoor temperature T1a (i.e., S1 = T1b - T1a). If S1 is greater than 2°C, it indicates a significant temperature rise, and the system will switch to running at the highest operating frequency Fmax (cooling frequency) corresponding to the outdoor temperature, and run for a second preset duration t2. If S1 is less than or equal to 2°C, it indicates that the temperature change is within an acceptable range, and it continues to run at the anti-condensation frequency for the first preset duration t1.

[0079] Reference Figure 3 In one embodiment, steps S221 and S222 may be included after step S212.

[0080] In one embodiment, step S221 involves controlling the compressor to run at the cooling frequency for a second preset duration, and then obtaining the third indoor temperature.

[0081] Understandably, once the system determines and controls the compressor to operate at a higher cooling frequency (i.e., for the second preset duration), it will again obtain the current indoor temperature through the built-in temperature sensor or an externally connected temperature and humidity sensor, and record it as the third indoor temperature. By obtaining the third indoor temperature, the system can assess the impact of the cooling frequency on the indoor temperature during this period, providing a basis for further adjustments and ensuring that the system can perform real-time optimization based on the latest temperature data.

[0082] In this embodiment, the second preset duration can be set based on experimental data and actual usage experience. The purpose is to ensure that there is enough time for the compressor to run at the cooling frequency so as to observe a significant temperature change effect. Optionally, when applied to a variable frequency air conditioner, the second preset duration can be half an hour or more than half an hour.

[0083] In one embodiment, step S222 involves determining the operating frequency of the compressor based on the difference between the third indoor temperature and the first indoor temperature, and controlling the compressor to operate at the operating frequency.

[0084] Understandably, step S222 further determines the compressor's operating frequency based on the difference between the third indoor temperature and the first indoor temperature obtained in step S221. Specifically, the system calculates the difference between the third indoor temperature and the initial first indoor temperature, and determines the next operation based on this difference. If the difference between the third indoor temperature and the first indoor temperature is large, it indicates that although the cooling frequency has been increased, the indoor temperature is still high, and the system may need to maintain a higher cooling frequency or further increase the frequency to achieve the desired cooling effect. Conversely, if the difference between the third indoor temperature and the first indoor temperature is small or within an acceptable range, the system can appropriately reduce the operating frequency to avoid over-cooling and save energy, or it can continue to operate at the anti-condensation frequency. In this way, through this dynamic adjustment method based on actual temperature changes, the system can improve the cooling stability of the air handling unit after entering the anti-condensation mode while ensuring user comfort.

[0085] Reference Figure 4 In one embodiment, step S222 may include steps S231 and S232.

[0086] In one embodiment, step S231 involves determining the operating frequency as the cooling frequency when the difference between the third indoor temperature and the first indoor temperature is greater than a second preset difference.

[0087] Understandably, step S231 describes the operation when the difference between the third indoor temperature and the first indoor temperature is greater than a second preset difference. If the calculated temperature difference exceeds the second preset difference, it indicates that even after increasing the cooling frequency, the indoor temperature remains high and fails to reach the ideal comfort level. In this case, the system will continue to operate at the cooling frequency, which in this embodiment can be the highest operating frequency set according to the outdoor temperature, aiming to further enhance the air conditioner's cooling capacity to quickly reduce the indoor temperature and restore it to the user's desired level. By maintaining or further increasing the compressor's operating frequency, the air handling unit can provide more cooling capacity, thereby effectively addressing the temperature rise problem caused by the anti-condensation mode.

[0088] The second preset difference is a threshold set based on experiments or experience, used to determine whether the change in indoor temperature remains significant after the compressor has been running at a cooling frequency for a second preset duration. The second preset difference can be less than the first preset difference.

[0089] In one embodiment, step S232 involves determining the operating frequency as an anti-condensation frequency when the difference between the third indoor temperature and the first indoor temperature is less than or equal to a second preset difference.

[0090] Understandably, step S232 describes the operation when the difference between the third indoor temperature and the first indoor temperature is less than or equal to a second preset difference. If the temperature difference is within this range, it indicates that after a period of operation at the cooling frequency, the indoor temperature has been effectively controlled without significantly affecting the user's comfort. At this point, the system can re-enter the anti-condensation frequency to achieve the anti-condensation effect. In this way, through such dynamic adjustment, the system can continuously monitor and optimize the indoor temperature, ensuring that the user is always in a comfortable environment.

[0091] For steps S221 and S222, the first preset difference is 2 degrees Celsius, and the second preset difference is 1 degree Celsius. The following scenario is given: First, the current indoor temperature is acquired (denoted as the first indoor temperature T1a). Then, the compressor is controlled to run at the anti-condensation frequency for a first preset duration t1, and the indoor temperature at this time is acquired again (denoted as the second indoor temperature T1b). Next, the difference S1 is calculated (i.e., S1 = T1b - T1a). If S1 is greater than 2 degrees Celsius, the system will switch to running at the highest operating frequency Fmax (cooling frequency) corresponding to the outdoor temperature, and run for a second preset duration t2. The indoor ambient temperature at this time is recorded (denoted as the third indoor temperature T1c), and the difference S2 between T1c and T1a is calculated (i.e., S2 = T1c - T1a). If S2 is greater than 1 degree Celsius, Fmax operation continues; if S2 is less than or equal to 1 degree Celsius, the system continues to run at the anti-condensation frequency for a first preset duration t1. If S1 is less than or equal to 2℃, it means that the temperature change is within an acceptable range, and the first preset time t1 should continue to be run according to the anti-condensation frequency.

[0092] Reference Figure 5 In one embodiment, step S233 may be included after step S232.

[0093] In one embodiment, after controlling the compressor to operate at the anti-condensation frequency for a first preset time in step S233, the process returns to the step of obtaining the second indoor temperature, determining the operating frequency of the air handling unit's compressor based on the difference between the second indoor temperature and the first indoor temperature, and controlling the compressor to operate at the operating frequency.

[0094] Understandably, after the compressor operates at the anti-condensation frequency for a first preset period, the system re-acquires the current indoor temperature using either a built-in temperature sensor or an externally connected temperature and humidity sensor, recording this as the new second indoor temperature. The system compares this new second indoor temperature with the initial first indoor temperature to calculate the new temperature difference. Based on this new temperature difference, the system will reassess whether the compressor's operating frequency needs adjustment. In this way, the system enters a cycle, which can largely avoid the impact of the anti-condensation mode on the cooling capacity.

[0095] It should be noted that in this embodiment, the second indoor temperature is used to represent the temperature after the first preset working time.

[0096] Reference Figure 6 In one embodiment, step S100 is further included after step S100.

[0097] In one embodiment, after step S110, which involves controlling the compressor to operate at the anti-condensation frequency for a first preset duration, the process returns to obtaining the second indoor temperature, determining the operating frequency of the air handling unit's compressor based on the difference between the second indoor temperature and the first indoor temperature, and controlling the compressor to operate at the operating frequency.

[0098] Understandably, after acquiring the initial indoor temperature, the system will control the compressor to operate at a pre-set frequency to prevent condensation for a first preset period. After this period, the system will acquire the second indoor temperature and, based on the difference between the second and initial indoor temperatures, redetermine the compressor's operating frequency. Subsequently, the control system will adjust the compressor to operate at the new frequency, thereby achieving dynamic optimization and continuous monitoring of the indoor temperature. This process forms a closed-loop feedback mechanism, ensuring stable cooling performance and user comfort while preventing condensation.

[0099] Steps S233 and S110 can be applied to the same embodiment to achieve a cyclic control effect. A specific scenario is as follows: When the air handling unit enters anti-condensation mode, the first indoor temperature T1a is first obtained. Then, the compressor is controlled to run at the anti-condensation frequency for a first preset time t1, and the second indoor temperature T1b is obtained. Next, the difference S1 between the second indoor temperature T1b and the first indoor temperature T1a is calculated (i.e., S1 = T1b - T1a). If S1 is greater than 2°C, the unit will switch to the highest operating frequency Fmax (cooling frequency) corresponding to the outdoor temperature and run for a second preset time t2. The indoor ambient temperature at this time is recorded (denoted as the third indoor temperature T1c), and the difference S2 between T1c and T1a is calculated (i.e., S2 = T1c - T1a). If S2 is greater than 1°C, Fmax operation continues; if S2 is less than or equal to 1°C, the above process is repeated (i.e., repeated from step S100), continuing to run at the anti-condensation frequency for the first preset time t1, and repeating the above process. If S1 is less than or equal to 2℃, it means that the temperature change is within an acceptable range. Continue to run at the anti-condensation frequency for the first preset time t1 and repeat the above process.

[0100] refer to Figure 7 In one embodiment, step S240 may be included after step S200.

[0101] In one embodiment, step S240 involves counting the number of times the compressor is controlled to operate at the cooling frequency, and when the number of times the compressor operates at the cooling frequency exceeds a preset number, controlling the air handling equipment to exit the anti-condensation mode.

[0102] Understandably, step S240 describes counting the number of times the compressor operates at the cooling frequency and controlling the air handling unit to exit the anti-condensation mode when the number exceeds a preset number. Specifically, after the system repeatedly adjusts the compressor to the cooling frequency to cope with rising temperatures, if it finds that the number of times the compressor operates at the cooling frequency exceeds the preset number (e.g., 3, 5, or 10 times), this indicates that under current conditions, insufficient cooling is frequently occurring, and the anti-condensation mode may not be able to effectively maintain stable indoor temperatures. At this time, the system will control the air handling unit to exit the anti-condensation mode and resume normal operation to ensure a more stable cooling effect. After exiting the anti-condensation mode, the device will wait for the next entry condition to be met before restarting the anti-condensation protection function. This method can prevent system instability and decreased user comfort caused by frequent frequency switching, while also reminding users or maintenance personnel of potential environmental factors or equipment problems that need to be checked and adjusted.

[0103] Thus, combining all the steps in all the above embodiments, an application scenario can be derived as follows: When the air handling unit enters the anti-condensation mode, the current indoor temperature is first obtained (denoted as the first indoor temperature T1a). Then, the compressor is controlled to run at the anti-condensation frequency for a first preset duration t1, and the indoor temperature at this time is obtained again (denoted as the second indoor temperature T1b). Next, the difference S1 between the second indoor temperature T1b and the first indoor temperature T1a is calculated (i.e., S1 = T1b - T1a). If S1 is greater than 2°C, the count is incremented by one (N+1). In this case, it indicates that the temperature has risen significantly, and the system will switch to running at the highest operating frequency Fmax (cooling frequency) corresponding to the outdoor temperature, and run for a second preset duration t2, recording the indoor ambient temperature at this time (denoted as the third indoor temperature T1c), and calculating the difference S2 between T1c and T1a (i.e., S2 = T1c - T1a). If S2 is greater than 1°C, Fmax continues to operate; if S2 is less than or equal to 1°C, return to step S110 and continue operating at the anti-condensation frequency for the first preset time t1, repeating the above process. If S1 is less than or equal to 2°C, it indicates that the temperature change is within an acceptable range, and the system continues operating at the anti-condensation frequency for the first preset time t1, repeating the above process. Through this dynamic adjustment mechanism, the system can maintain a stable indoor temperature while preventing condensation, thereby improving the cooling stability of the air handling unit after entering anti-condensation mode. During multiple repetitions of the above process, if the count reaches N+3, the anti-condensation mode is exited.

[0104] In this embodiment, the cooling frequency is the highest operating frequency corresponding to the current outdoor temperature; and / or, the cooling frequency is the highest operating frequency of the air handling equipment when the operating mode is cooling mode; and / or, the cooling frequency is the operating frequency of the air handling equipment before entering the anti-condensation mode.

[0105] refer to Figure 8 In one embodiment, step S300 is included before step S100.

[0106] In one embodiment, step S300 involves acquiring the operating parameters and environmental parameters of the air handling equipment, and controlling the air handling equipment to operate in anti-condensation mode when the operating parameters and environmental parameters of the air handling equipment meet the working conditions of the anti-condensation mode.

[0107] Understandably, in step S300, the system first acquires the operating parameters of the air handling equipment (such as the compressor's operating frequency, indoor temperature, indoor humidity, etc.) and environmental parameters (such as outdoor temperature, outdoor humidity, etc.). Subsequently, the system determines whether the operating conditions for entering the anti-condensation mode are met based on these parameters.

[0108] Optionally, the anti-condensation mode operating conditions include at least one or more of the following conditions: First, the air handling unit operates in cooling mode for a third preset duration (which could be one hour). This condition ensures that the unit has been running stably in cooling mode for a period of time, allowing for a more accurate assessment of indoor temperature changes. If the unit has just been started or has only been running for a short time, the indoor temperature may not have reached a stable state, and entering the anti-condensation mode at this time could lead to unnecessary frequency adjustments. Second, the cooling temperature difference refers to the change in indoor temperature after the unit has been running in cooling mode for a fourth preset duration (e.g., one hour). This change needs to be greater than a preset temperature difference threshold (e.g., 5°C). A large cooling temperature difference indicates that the unit has significantly reduced the indoor temperature during the cooling process, which may be due to a higher outdoor temperature or a larger indoor load. In this case, the risk of condensation formation increases, so the anti-condensation mode needs to be entered to prevent condensation from dripping or being blown out. Third, the air handling unit operates at a fourth outdoor temperature, which is lower than the indoor temperature. When the outdoor temperature is lower than the indoor temperature, moisture in the air is more likely to condense into water droplets on cold surfaces. Under these conditions, condensation is more likely to form, so the anti-condensation mode needs to be activated to prevent condensation. Fourth, the compressor's operating frequency is not affected by parameters such as temperature, current, and voltage; if the compressor's operating frequency is limited by factors such as temperature, current, and voltage, it indicates that the equipment may already be in a protection or abnormal state. In this case, directly entering the anti-condensation mode may not effectively solve the problem and may even lead to equipment failure.

[0109] refer to Figure 9 In one embodiment, the air handling equipment's wind speed operation mode includes a set wind operation mode and an automatic wind operation mode; and step S200 may also include steps S251 to S253.

[0110] In one embodiment, step S251 involves obtaining the wind speed operating mode of the air handling equipment.

[0111] In one embodiment, step S252, when the difference between the first indoor temperature and the second indoor temperature is greater than a first preset difference, and when the air handling equipment is in the set wind operation mode, the operating frequency is determined to be the cooling frequency.

[0112] In one embodiment, step S253 involves setting the air handling equipment's fan speed operation mode to automatic fan operation mode and controlling the compressor to operate at the cooling frequency.

[0113] It is understandable that in automatic fan operation mode, the system automatically adjusts the fan speed based on actual indoor temperature and humidity parameters to achieve the best cooling effect. All the anti-condensation control methods described in the above embodiments are for automatic fan operation mode. In addition, in set-fan operation mode, the user manually sets a fixed fan speed. While this mode can meet the user's specific needs, a fixed fan speed may limit the system's adjustment capability when a rapid response to temperature changes is required. Therefore, in set-fan operation mode, it is necessary to convert it to automatic fan operation mode, as described in step S253, so that the frequency limiting function in set-fan operation mode is no longer effective. This enhances the applicability of the anti-condensation control method.

[0114] The present invention also provides an anti-condensation control device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor; the computer program is configured to implement the anti-condensation control method as described in any of the above claims. It should be noted that this anti-condensation control device is used to implement the anti-condensation control method as described in any of the above claims. Since this anti-condensation control method includes the technical solutions of any of the above embodiments, this anti-condensation control device includes all the beneficial effects of the present anti-condensation control method, which will not be elaborated further here.

[0115] The present invention also provides an air handling device, which includes the anti-condensation control device described above, the anti-condensation control device being used to control the anti-condensation operation of the air handling device. It should be noted that since this control and handling device includes the anti-condensation control device described above, it possesses at least all the beneficial effects of the anti-condensation control device of the present invention, which will not be elaborated upon here.

[0116] In one embodiment, the air handling equipment includes an air conditioner. Specifically, this air conditioner includes the aforementioned anti-condensation control device, which can automatically adjust its operating state under different operating conditions to ensure optimal cooling effect and anti-condensation performance. Furthermore, when the anti-condensation function is activated, it can improve the cooling stability of the air conditioner after entering anti-condensation mode.

[0117] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A method for preventing condensation control, characterized in that, For use in air handling equipment, the anti-condensation control method includes: When the air handling unit is operating in anti-condensation mode, a first indoor temperature is obtained, and a second indoor temperature is obtained after a first preset time. Based on the difference between the second indoor temperature and the first indoor temperature, the operating frequency of the air handling unit's compressor is determined, and the compressor is controlled to operate at the operating frequency.

2. The anti-condensation control method as described in claim 1, characterized in that, The operating frequency includes an anti-condensation frequency and a cooling frequency, wherein the anti-condensation frequency is less than the cooling frequency. The step of determining the operating frequency of the air handling equipment after the first preset time period based on the difference between the first indoor temperature and the second indoor temperature, and controlling the compressor to operate at the operating frequency, includes: When the difference between the first indoor temperature and the second indoor temperature is greater than a first preset difference, the operating frequency is determined to be the cooling frequency, and the compressor is controlled to operate at the cooling frequency. When the difference between the first indoor temperature and the second indoor temperature is less than or equal to a first preset difference, the operating frequency is determined to be the anti-condensation frequency, and the compressor is controlled to operate at the anti-condensation frequency.

3. The anti-condensation control method as described in claim 2, characterized in that, After determining the operating frequency as the cooling frequency and controlling the compressor to operate at the cooling frequency when the difference between the first indoor temperature and the second indoor temperature is greater than a first preset difference, the method further includes: After controlling the compressor to run at the cooling frequency for a second preset time, the third indoor temperature is obtained; The operating frequency of the compressor is determined based on the difference between the third indoor temperature and the first indoor temperature, and the compressor is controlled to operate at the operating frequency.

4. The anti-condensation control method as described in claim 3, characterized in that, The step of determining the operating frequency of the compressor based on the difference between the third indoor temperature and the first indoor temperature includes: When the difference between the third indoor temperature and the first indoor temperature is greater than a second preset difference, the operating frequency is determined to be the cooling frequency. When the difference between the third indoor temperature and the first indoor temperature is less than or equal to a second preset difference, the operating frequency is determined to be the anti-condensation frequency.

5. The anti-condensation control method as described in claim 4, characterized in that, After determining the operating frequency as the anti-condensation frequency when the difference between the third indoor temperature and the first indoor temperature is less than or equal to a second preset difference, the method further includes: After controlling the compressor to operate at the anti-condensation frequency for a first preset time, the process returns to the steps of obtaining the second indoor temperature, determining the operating frequency of the air handling unit's compressor based on the difference between the second indoor temperature and the first indoor temperature, and controlling the compressor to operate at the operating frequency.

6. The anti-condensation control method as described in claim 2, characterized in that, After the step of determining the operating frequency as the anti-condensation frequency and controlling the compressor to operate at the anti-condensation frequency when the difference between the first indoor temperature and the second indoor temperature is less than or equal to a first preset difference, the method further includes: After controlling the compressor to operate at the anti-condensation frequency for a first preset time, the process returns to the steps of obtaining the second indoor temperature, determining the operating frequency of the air handling unit's compressor based on the difference between the second indoor temperature and the first indoor temperature, and controlling the compressor to operate at the operating frequency.

7. The anti-condensation control method according to any one of claims 2 to 6, characterized in that, After determining the operating frequency as the cooling frequency and controlling the compressor to operate at the cooling frequency when the difference between the first indoor temperature and the second indoor temperature is greater than a first preset difference, the method further includes: The number of times the compressor is controlled to operate at the cooling frequency is counted. When the number of times the compressor operates at the cooling frequency exceeds a preset number, the air handling equipment is controlled to exit the anti-condensation mode.

8. The anti-condensation control method as described in claim 2, characterized in that, The cooling frequency is the highest operating frequency corresponding to the current outdoor temperature; And / or, the cooling frequency is the highest operating frequency of the air handling equipment in the cooling mode; And / or, the cooling frequency is the operating frequency of the air handling equipment before it enters the anti-condensation mode.

9. The anti-condensation control method as described in claim 1, characterized in that, Before the steps of obtaining the first indoor temperature when the air handling equipment is operating in anti-condensation mode, and obtaining the second indoor temperature after a first preset time, the method further includes: The operating parameters and environmental parameters of the air handling equipment are obtained, and when the operating parameters and environmental parameters of the air handling equipment meet the working conditions of the anti-condensation mode, the air handling equipment is controlled to work in the anti-condensation mode.

10. The anti-condensation control method as described in claim 9, characterized in that, The operating conditions of the anti-condensation mode include at least one or more of the following conditions: The air handling unit operates in cooling mode for a third preset duration. The cooling temperature difference is greater than the third preset temperature difference, where the cooling temperature difference is the temperature change of the room after the air handling equipment has been working in the cooling mode for a fourth preset duration. The air handling equipment operates at a fourth outdoor temperature, and the fourth indoor temperature is lower than the indoor temperature.

11. The anti-condensation control method as described in claim 1, characterized in that, The air handling equipment has two wind speed operation modes: a set wind operation mode and an automatic wind operation mode. The step of determining the operating frequency of the air handling equipment after the first preset time period based on the difference between the first indoor temperature and the second indoor temperature includes: Obtain the air speed operation mode of the air handling equipment; When the difference between the first indoor temperature and the second indoor temperature is greater than the first preset difference, and the air handling equipment is in the set wind operation mode, the operating frequency is determined to be the cooling frequency. Set the air handling equipment to automatic fan speed mode and control the compressor to operate at the cooling frequency.

12. A device for preventing condensation control, characterized in that, The anti-condensation control device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor; the computer program is configured to implement the anti-condensation control method as described in any one of claims 1 to 11.

13. An air handling device, characterized in that, The air handling equipment includes the anti-condensation control device as described in claim 12, the anti-condensation control device being used to control the anti-condensation operation of the air handling equipment.

14. The air handling apparatus as described in claim 13, characterized in that, The air handling equipment includes an air conditioner.

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