Control method of dehumidifier, computer device and dehumidifier thereof

Abstract

The present application relates to the control method of dehumidifier, computer equipment and dehumidifier thereof, the control method of dehumidifier includes the following steps: obtaining the cumulative running time of compressor and the supply air humidity of dehumidifier, if the supply air humidity is greater than the preset entering humidity and the cumulative running time is greater than the first preset time, obtain the first duration that the supply air humidity is greater than the preset entering humidity;If the first duration is greater than the entering judgment time, the dehumidifier enters the anti-condensate water splashing state.The control method of dehumidifier, computer equipment and dehumidifier thereof, according to the size of supply air humidity, the cumulative running time of compressor and the first duration, judge whether the dehumidifier appears the problem of condensate water splashing, if the problem of condensate water splashing appears, then make the dehumidifier enter the anti-condensate water splashing state, with the advantages of stable dehumidification effect and low energy consumption.

Description

Technical Field

[0001] This invention relates to the field of heat pump dehumidification technology, and in particular to a control method for a dehumidifier, a computer device, and a dehumidifier thereof. Background Technology

[0002] Existing dehumidifiers are based on the principle of heat pump systems. The compressor compresses and outputs high-humidity, high-pressure refrigerant to the condenser for heat exchange. After heat exchange, the refrigerant enters the evaporator. The return air fan draws in high-humidity air from outside through the return air duct. After heat exchange in the cooling coil heat exchanger (evaporator), it exchanges heat with the condenser. When the high-humidity air passes through the evaporator, the water vapor in it is liquefied into liquid water, and the temperature and humidity of the air are reduced. Then, after the temperature is regulated by the condenser, air with the desired temperature and humidity is obtained, thus achieving the desired dehumidification.

[0003] Existing dehumidifiers typically have a return air fan and a supply air fan to ensure sufficient airflow. With the combined action of the return air fan and the supply air fan, the internal air pressure of the dehumidifier is relatively high. The large return air volume causes some of the liquid water that has liquefied on the evaporator surface to splash onto the supply air fan, resulting in increased humidity in the dehumidified air and affecting the dehumidification effect. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide a dehumidifier control method, a computer device and a dehumidifier thereof, which determines whether the dehumidifier has a problem of condensate splashing based on the supply air humidity, the cumulative running time of the compressor and the magnitude of the first duration. If a problem of condensate splashing occurs, the dehumidifier is put into an anti-condensate splashing state, which has the advantages of stable dehumidification effect and low energy consumption.

[0005] A control method for a dehumidifier, the dehumidifier comprising a first air box, a second air box, a third air box, a return air fan, a heat exchanger, a supply air fan, a drain valve, a humidity detection unit, and a compressor; the first air box, the second air box, and the third air box are arranged sequentially and interconnected; the return air fan is fixed to the first air box; the heat exchanger is located inside the second air box; the supply air fan is located inside the third air box; the drain valve and the humidity detection unit are both fixed to the third air box; the drain valve is located near the bottom of the dehumidifier; and the compressor is connected to the heat exchanger via a pipeline.

[0006] The control method of the dehumidifier includes the following steps: obtaining the cumulative running time of the compressor and the supply air humidity of the dehumidifier; if the supply air humidity is greater than the preset entry humidity and the cumulative running time is greater than the first preset time, obtaining the first duration during which the supply air humidity is greater than the preset entry humidity; if the first duration is greater than the entry judgment time, the dehumidifier enters the anti-condensate splashing state.

[0007] Furthermore, the control method for the dehumidifier also includes the following steps: after the dehumidifier enters the anti-condensate splashing state, it performs anti-condensate splashing treatment; the anti-condensate splashing treatment method includes one or more of the following: opening the drain valve, adjusting the compressor frequency, and adjusting the fan speed; the execution priority of the anti-condensate splashing treatment method, from high to low, is: opening the drain valve, adjusting the compressor frequency, and adjusting the fan speed. After entering the anti-condensate splashing state, by instructing the dehumidifier to perform processes such as opening the drain valve, adjusting the compressor frequency, and adjusting the fan speed, and limiting the priority of the aforementioned processes to drain valve > compressor > fan, the anti-condensate splashing treatment is made more precise, reducing the impact of the anti-condensate splashing treatment on the dehumidification effect of the dehumidifier.

[0008] Furthermore, the fan speed adjustment includes the following steps: reducing the speed of the supply air fan according to a preset supply air adjustment ratio, and reducing the speed of the return air fan according to a preset return air adjustment ratio; the preset supply air adjustment ratio is equal to the preset return air adjustment ratio. With the supply and return air volumes adjusted proportionally, the overall air volume decreases, resulting in less condensate accumulating at the heat exchanger.

[0009] Furthermore, the fan speed adjustment includes the following steps: reducing the speed of the supply air fan according to a preset supply air adjustment ratio, and reducing the speed of the return air fan according to a preset return air adjustment ratio; the preset supply air adjustment ratio is less than or greater than the preset return air adjustment ratio. When the preset supply air adjustment ratio is greater than the preset return air adjustment ratio, the return air volume is small, and the air pressure is low when the return air passes through the heat exchanger, making it less likely for condensate to splash towards the supply air fan, which is more suitable for situations where there is a lot of condensate accumulation on the heat exchanger; when the preset supply air adjustment ratio is less than the preset return air adjustment ratio, the return air volume is greater than the supply air volume, the contact time between the indoor return air and the heat exchanger is shorter, and condensate is less likely to accumulate on the heat exchanger, which is more suitable for situations where there is less condensate accumulation on the heat exchanger.

[0010] Furthermore, the frequency adjustment of the compressor and the speed adjustment of the fan are both based on the magnitude and rate of change of the supply air humidity;

[0011] After adjusting the frequency of the compressor under conditions of high humidity:

[0012] If the rate of change of the supply air humidity is in the first gradient, then the frequency adjustment of the compressor continues;

[0013] If the rate of change of the supply air humidity is in the second gradient, then the frequency of the compressor and the speed of the fan are adjusted.

[0014] If the rate of change of the supply air humidity is in the third gradient, the frequency adjustment of the compressor is stopped, and the speed adjustment of the fan is performed. In cases of severe high humidity, the selection of the anti-condensation splash treatment method and the specific adjustment intensity of each method are determined based on the rate of change of the supply air humidity over a period of time (after the supply air humidity changes, the amount of humidity change n and the time t consumed are obtained, and the magnitude of the rate of change (n / t) is used as the basis). Through the synergistic effect of each method, the impact of anti-condensation splash treatment on the dehumidification effect of the dehumidifier is minimized.

[0015] Furthermore, the control method for the dehumidifier also includes the following steps:

[0016] If, after adjusting the frequency of the compressor or the speed of the fan for a first interval, the dehumidifier remains in a state to prevent condensate splashing, a first judgment method is executed. The first judgment method includes:

[0017] If the speed of the return air fan is greater than or equal to the first return air speed after the fan speed is adjusted again, the speed of the return air fan will continue to be reduced according to the fan speed adjustment method; otherwise, the speed of the return air fan will be adjusted to the first return air speed.

[0018] If the speed of the air supply fan is greater than or equal to the first air supply speed after the fan speed is adjusted again, the speed of the air supply fan will continue to be reduced according to the fan speed adjustment method; otherwise, the speed of the air supply fan will be adjusted to the first air supply speed.

[0019] If, after further frequency adjustment, the compressor's operating frequency is greater than or equal to the first operating frequency, then the compressor's operating frequency continues to decrease according to the compressor's frequency adjustment method. Otherwise, the compressor's operating frequency is adjusted to the first operating frequency. By limiting the fan speed to be greater than or equal to the first return air speed, the supply air fan speed to be greater than or equal to the first supply air speed, and the compressor's operating frequency to be greater than or equal to the first operating frequency, the impact of the anti-condensate splashing treatment on the dehumidifier's dehumidification effect is avoided, ensuring that the dehumidifier achieves a good dehumidification effect while implementing anti-condensate splashing treatment.

[0020] Furthermore, the dehumidifier control method also includes the following steps: After the dehumidifier enters the anti-condensation splashing state, the duration of the anti-condensation splashing state is obtained. If the anti-condensation duration is greater than a second preset time, the speed of the return air fan is adjusted to a second return air speed, the speed of the supply air fan is adjusted to a second supply air speed, and the operating frequency of the compressor is adjusted to a second operating frequency. If high humidity persists after the anti-condensation state reaches the second preset time, it is considered that the current anti-condensation splashing treatment is insufficient. The dehumidifier's adjustment strategy is then changed to maximize the anti-condensation splashing treatment, i.e., the dehumidifier operates at the second return air speed, the second supply air speed, and the second operating frequency. At this time, the dehumidification effect of the dehumidifier is average, but the problem of condensation splashing can be handled more efficiently.

[0021] Furthermore, the control method for the dehumidifier also includes the following steps: after the dehumidifier enters the anti-condensation splashing state, the duration of the anti-condensation splashing state is obtained; if the anti-condensation splashing duration is greater than a third preset time, the dehumidifier exits the anti-condensation splashing state, and the abnormal duration of the supply air humidity being greater than the preset entry humidity after exiting the anti-condensation splashing state is obtained; if the abnormal duration is greater than the fault judgment time, a fault signal is issued. This avoids the dehumidifier being in the anti-condensation splashing state for extended periods, which could affect its dehumidification effect; it also controls the operating time of the dehumidifier at the second return air speed, the second supply air speed, and the second operating frequency to avoid affecting its dehumidification effect; furthermore, if the supply air humidity remains high after a prolonged anti-condensation splashing process, the dehumidifier is considered to have malfunctioned, such as the dehumidifier failing to perform normal anti-condensation splashing treatment or a malfunction in the supply air humidity detection, requiring identification and resolution.

[0022] Furthermore, the control method for the dehumidifier also includes the following steps: if the dehumidifier is in an anti-condensation splash state and the supply air humidity is less than a preset exit humidity, obtain a second duration for which the supply air humidity is less than the preset exit humidity; if the second duration is greater than an exit judgment time, the dehumidifier exits the anti-condensation splash state. When the humidity is lower than the preset exit humidity, and the second duration for which the supply air humidity is less than the preset exit humidity is greater than the exit judgment time, it is considered that the dehumidifier has effectively prevented condensation splashing, successfully solving the problem of condensation splashing, and thus the dehumidifier exits the anti-condensation splash state.

[0023] The present invention also provides a computer device for controlling a dehumidifier, comprising:

[0024] The first signal acquisition module is used to acquire the cumulative running time of the compressor, the supply air humidity of the dehumidifier, and the first duration of the dehumidifier;

[0025] The first judgment module is used to determine whether the cumulative running time is greater than a first preset time and whether the supply air humidity is greater than a preset inlet humidity.

[0026] The first execution module is used to cause the dehumidifier to enter the anti-condensate splashing state when the supply air humidity is greater than the preset entry humidity, the cumulative running time is greater than the first preset time, and the first duration is greater than the entry judgment time.

[0027] The present invention also provides a dehumidifier, including at least one memory and at least one processor;

[0028] The memory is used to store one or more computer programs, which, when executed by a processor, are used to implement the steps of any of the above-described control methods for a dehumidifier.

[0029] When the one or more computer programs are executed by the at least one processor, the at least one processor implements the steps of the dehumidifier control method described above.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] 1. Based on the supply air humidity, the cumulative running time of the compressor, and the duration of the first cycle, determine whether the dehumidifier is experiencing condensate splashing. If condensate splashing occurs, put the dehumidifier into anti-condensate splashing mode, which has the advantages of stable dehumidification effect and low energy consumption.

[0032] 2. After entering the anti-condensation splashing state, the dehumidifier is instructed to open the drain valve, adjust the frequency of the compressor, and adjust the speed of the fan. The priority of the aforementioned processes is set as drain valve > compressor > fan, which makes the anti-condensation splashing process more precise and reduces the impact of the anti-condensation splashing process on the dehumidifier's dehumidification effect.

[0033] 3. The supply air volume and return air volume are adjusted proportionally, the overall air volume is reduced, and less condensate water accumulates at the heat exchanger.

[0034] 4. When the preset supply air adjustment ratio is greater than the preset return air adjustment ratio, the return air volume is small, and the air pressure is low when the return air passes through the heat exchanger. This makes it less likely for condensate to splash towards the supply air fan, making it more suitable for situations where there is a lot of condensate accumulation on the heat exchanger. When the preset supply air adjustment ratio is less than the preset return air adjustment ratio, the return air volume is greater than the supply air volume. This shortens the contact time between the indoor return air and the heat exchanger, making it less likely for condensate to accumulate on the heat exchanger, making it more suitable for situations where there is less condensate accumulation on the heat exchanger.

[0035] 5. In cases of severe high humidity, the selection of anti-condensation splash treatment methods and the specific adjustment intensity of each method are determined based on the rate of change of supply air humidity over a period of time (after the supply air humidity changes, the amount of humidity change n and the time t consumed are obtained, and the rate of change (n / t) is used as the basis). Under the synergistic effect of each method, the impact of anti-condensation splash treatment on the dehumidification effect of the dehumidifier is minimized to the greatest extent.

[0036] 6. By limiting the fan speed to be greater than or equal to the first return air speed, the supply air fan speed to be greater than or equal to the first supply air speed, and the compressor operating frequency to be greater than or equal to the first operating frequency, the dehumidification effect of the anti-condensate splashing treatment is avoided, and the dehumidifier achieves a good dehumidification effect while performing anti-condensate splashing treatment.

[0037] 7. If high humidity persists after the second preset time has elapsed in the anti-condensation state, it is considered that the current anti-condensation splashing treatment is insufficient. The dehumidifier's adjustment strategy is then changed to maximize the anti-condensation splashing treatment, i.e., the dehumidifier operates at the second return air speed, the second supply air speed, and the second operating frequency. At this time, the dehumidifier's dehumidification effect is average, but it can more efficiently handle the problem of condensation splashing.

[0038] 8. By limiting the time the dehumidifier remains in anti-condensation splash mode to no more than the third preset time, the following measures are taken: First, to prevent the dehumidifier from being in anti-condensation splash mode for an extended period, which could affect its dehumidification effect. Second, to control the time the dehumidifier operates at the second return air speed, the second supply air speed, and the second operating frequency, thus avoiding any impact on its dehumidification effect. If, after a prolonged period of anti-condensation splash mode, the dehumidifier's supply air humidity remains high, it is considered that the dehumidifier has malfunctioned, such as the dehumidifier failing to perform normal anti-condensation splash mode or a malfunction in the dehumidifier's supply air humidity detection, which requires identification and resolution.

[0039] 9. When the humidity is lower than the preset exit humidity, and the second duration of the supply air humidity being lower than the preset exit humidity is greater than the exit judgment time, it is considered that the dehumidifier has effectively prevented condensate splashing, successfully solved the problem of condensate splashing, and caused the dehumidifier to exit the anti-condensate splashing state.

[0040] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of a dehumidifier according to the present invention;

[0042] Figure 2 This is a flowchart of a control method for a dehumidifier according to the present invention;

[0043] Figure 3 This is a flowchart illustrating the process after a dehumidifier enters an anti-condensation splash state, as described in this invention.

[0044] Figure 4 This is a flowchart illustrating the process after a dehumidifier enters an anti-condensation splash state, as described in this invention.

[0045] Figure 5 This is a flowchart illustrating the process after a dehumidifier enters an anti-condensation splash state, as described in this invention.

[0046] Figure 6 This is a flowchart illustrating the control method for a dehumidifier according to the present invention, after adjusting the frequency of the compressor or the speed of the fan.

[0047] Figure 7 This is a schematic diagram of the computer device for controlling a dehumidifier according to the present invention;

[0048] The components include a first air box 1, a second air box 2, a third air box 3, a return air fan 4, a heat exchanger 5, a supply air fan 6, a drain valve 7, a humidity detection unit 8, a computer device 9 for dehumidifier control, a first signal acquisition module 901, a first judgment module 902, and a first execution module 903. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0050] It should be understood that the described embodiments are only some embodiments of the embodiments of this application, and not all embodiments.

[0051] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the embodiments in this application.

[0052] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0053] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0054] It should be noted that the range of a value a to b mentioned in this embodiment usually means a ≤ a value < b, that is, it includes a but does not include b.

[0055] It should be understood that the embodiments of this application are not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from their scope. The scope of the embodiments of this application is limited only by the appended claims.

[0056] This invention provides a control method for a dehumidifier. For ease of understanding, this invention illustrates the method using a dehumidifier suitable for the control method described herein. It should be noted that the dehumidifier illustrated in this invention is merely illustrative. The components that are related to each other can be physically connected or physically separated. For example, the connection between two components can be a direct contact connection or an indirect connection achieved through a third component. Similarly, the fixing of two components can be direct or indirect. Those skilled in the art can select some or all of the modules to achieve the purpose of this disclosure according to actual needs.

[0057] This invention provides a control method for a dehumidifier; please refer to [link / reference]. Figure 1The dehumidifier includes a first air box 1, a second air box 2, a third air box 3, a return air fan 4, a heat exchanger 5, a supply air fan 6, a drain valve, a humidity detection unit 8, and a compressor. The first air box 1, the second air box 2, and the third air box 3 are arranged sequentially and interconnected. The return air fan 4 is fixed to the first air box 1 and is used to draw air from the target space that needs to be dehumidified into the dehumidifier. The heat exchanger 5 is located in the second air box 2 and is used to dehumidify the humid air in the target space and regulate its temperature. The supply air fan 6 is located in the third air box 3 and is used to deliver the air from the third air box 3 to the target space. The drain valve and the humidity detection unit 8 are both fixed to the third air box 3. The drain valve is located near the bottom of the dehumidifier. The humidity detection unit 8 is used to detect the supply air humidity of the dehumidifier. The compressor and the heat exchanger 5 are connected through a pipeline. After the dehumidifier is turned on, the return air fan 4 will operate at the initial return air speed, the supply air fan 6 will operate at the initial supply air speed, and the compressor will operate at the initial frequency. The following description uses this exemplified dehumidifier to illustrate the control method of the dehumidifier of the present invention. It should be noted that the control method of the dehumidifier of the present invention is also applicable to other dehumidifiers, including the aforementioned exemplified dehumidifier. In one embodiment, the dehumidifier may further include a fourth air box located between the first air box 1 and the second air box 2, and a fresh air valve and an exhaust air valve fixed to the fourth air box. When the fresh air valve is open, fresh air from the outside can be drawn into the dehumidifier under the negative pressure inside the dehumidifier. When the exhaust air valve is open, the dehumidifier can exhaust some of the air in the target space to the outside under the action of the exhaust fan, thereby improving air quality.

[0058] In one embodiment, see Figure 2 The control method for the dehumidifier includes the following steps:

[0059] The system acquires the cumulative running time of the compressor and the supply air humidity of the dehumidifier. If the supply air humidity is greater than the preset entry humidity of 85% RH and the cumulative running time is greater than a first preset time of 5 minutes, it acquires the first duration during which the supply air humidity is greater than the preset entry humidity. If the first duration is greater than the entry judgment time of 0.5 minutes, the dehumidifier enters the anti-condensation splashing state. In other embodiments, the first preset time can be selected between 2 and 10 minutes, and the entry judgment time can be selected between 0.5 and 2 minutes. The dehumidifier control method of this embodiment determines whether the dehumidifier has a condensation splashing problem based on the supply air humidity, the cumulative running time of the compressor, and the magnitude of the first duration. If a condensation splashing problem occurs, the dehumidifier enters the anti-condensation splashing state, which has the advantages of stable dehumidification effect and low energy consumption.

[0060] In a further embodiment, please refer to Figure 3The dehumidifier control method further includes the following steps: after the dehumidifier enters the anti-condensate splashing state, anti-condensate splashing treatment is performed; the anti-condensate splashing treatment method includes one or more of the following: opening the drain valve, adjusting the compressor frequency, and adjusting the fan speed; the execution priority of the anti-condensate splashing treatment method from high to low is: opening the drain valve, adjusting the compressor frequency, and adjusting the fan speed; specifically, in this embodiment, when the supply air humidity is between 85-89%RH, it is considered slightly high humidity; when the supply air humidity is between 89-93%RH, it is considered moderately high humidity; when the supply air humidity is between 93-99%RH, it is considered severely high humidity; in slightly high humidity, the anti-condensate splashing treatment method includes opening the drain valve; in moderately high humidity, the anti-condensate splashing treatment method includes opening the drain valve and then adjusting the compressor frequency; in severely high humidity, the anti-condensate splashing treatment method includes opening the drain valve, then adjusting (reducing) the compressor frequency, and then adjusting (reducing) the fan speed. After entering the anti-condensation splashing state, the dehumidifier performs processes such as opening the drain valve, adjusting the compressor frequency, and adjusting the fan speed. The priority of the aforementioned processes is set as drain valve > compressor > fan, which makes the anti-condensation splashing process more precise and reduces the impact of the anti-condensation splashing process on the dehumidifier's dehumidification effect.

[0061] In an optional embodiment, please refer to Figure 3 The fan speed adjustment also includes the following steps: reducing the speed of the supply air fan 6 according to a preset supply air adjustment ratio, and reducing the speed of the return air fan 4 according to a preset return air adjustment ratio; the preset supply air adjustment ratio is equal to the preset return air adjustment ratio. In this embodiment, the preset supply air adjustment ratio = preset return air adjustment ratio = 5%. With the supply and return air volumes adjusted proportionally, the overall air volume decreases, resulting in less condensate accumulating at the heat exchanger 5. In a further embodiment, please refer to... Figure 4The preset supply air adjustment ratio and preset return air adjustment ratio are adjusted based on the rate of change of supply air humidity. The method for obtaining the rate of change of supply air humidity is as follows: after the supply air humidity changes, the change amount n of supply air humidity and the time t taken are obtained, then the rate of change is (n / t), with the unit being %RH / min; t is usually 1 min. Specifically, the method for determining the preset supply air adjustment ratio and preset return air adjustment ratio based on the rate of change of supply air humidity is as follows: after adjusting the fan speed with the preset supply air adjustment ratio = preset return air adjustment ratio = 5%, if the rate of change of supply air humidity is (0~0.3)%RH / min, then the preset return air adjustment ratio is 7%. The supply air adjustment ratio and preset return air adjustment ratio reduce the speed of the supply air fan 6 and the return air fan 4; if the change rate of supply air humidity is (0.3~0.7)%RH / min, the speed of the supply air fan 6 and the return air fan 4 is reduced by 5% of the preset supply air adjustment ratio and preset return air adjustment ratio; if the change rate of supply air humidity is (0.7~1)%RH / min, the speed of the supply air fan 6 and the return air fan 4 is reduced by 3% of the preset supply air adjustment ratio and preset return air adjustment ratio; further, different preset supply air adjustment ratios and preset return air adjustment ratios are selected according to the gradient of the supply air change rate to make the anti-condensate splashing treatment more efficient.

[0062] In an optional embodiment, the fan speed adjustment includes the following steps: reducing the speed of the supply air fan 6 according to a preset supply air adjustment ratio, and reducing the speed of the return air fan 4 according to a preset return air adjustment ratio; the preset supply air adjustment ratio is less than the preset return air adjustment ratio. In this embodiment, the preset supply air adjustment ratio is 3%, and the preset return air adjustment ratio is 6%. When the return air volume is greater than the supply air volume, the contact time between the indoor return air and the heat exchanger 5 is shorter, and condensate is less likely to accumulate on the heat exchanger 5, making it more suitable for situations where there is less condensate accumulation on the heat exchanger 5.

[0063] In an optional embodiment, the fan speed adjustment includes the following steps: reducing the speed of the supply air fan 6 according to a preset supply air adjustment ratio, and reducing the speed of the return air fan 4 according to a preset return air adjustment ratio; the preset supply air adjustment ratio is greater than the preset return air adjustment ratio. In this embodiment, the preset supply air adjustment ratio is 6%, and the preset return air adjustment ratio is 4%. A smaller return air volume results in lower air pressure when the return air passes through the heat exchanger 5, making it less likely for condensate to splash towards the supply air fan 6, and is more suitable for situations where a large amount of condensate accumulates on the heat exchanger 5.

[0064] In an optional embodiment, please refer to Figure 5 The dehumidifier control method also includes the following steps: the frequency adjustment of the compressor and the speed adjustment of the fan are both based on the magnitude and rate of change of the supply air humidity; the method for obtaining the rate of change of the supply air humidity is: after the supply air humidity changes, the change amount n of the supply air humidity and the time t taken are obtained, then the rate of change is (n / t), and the unit is %RH / min; t is usually 1min.

[0065] After adjusting the compressor frequency under conditions of high humidity:

[0066] If the rate of change of supply air humidity is in the first gradient (0.8~1)%RH / min, then continue to adjust the compressor frequency. Specifically, continue to reduce the compressor operating frequency at the preset frequency of 5Hz.

[0067] If the rate of change of supply air humidity is in the second gradient (0.3~0.8)%RH / min, then the compressor frequency and fan speed are adjusted; specifically, the compressor operating frequency is reduced by a preset frequency of 4Hz, and the speed of the supply air fan and return air fan is reduced by a baseline of preset supply air adjustment ratio = preset return air adjustment ratio = 5%.

[0068] If the rate of change of supply air humidity is within the third gradient (0–0.3)%RH / min, then the compressor frequency adjustment is stopped, and the fan speed is adjusted. Specifically, the speeds of the supply and return air fans are reduced based on a preset supply air adjustment ratio = preset return air adjustment ratio = 5%. In cases of severe high humidity, the selection of anti-condensate splashing treatment methods is determined based on the rate of change of supply air humidity over a period of time. Through the synergistic effect of various methods, the impact of anti-condensate splashing treatment on the dehumidification effect of the dehumidifier is minimized.

[0069] In other embodiments, if the rate of change of supply air humidity is in the second gradient (0.3–0.8)%RH / min, the frequency adjustment of the compressor and the speed adjustment of the fan are both based on the magnitude and rate of change of supply air humidity. Specifically, if the rate of change of supply air humidity is (0.3–0.45)%RH / min, the speed of the supply air fan 6 and the return air fan 4 is reduced by a preset supply air adjustment ratio of 8% and a preset return air adjustment ratio, and the operating frequency of the compressor is reduced by a preset frequency of 1Hz; if the rate of change of supply air humidity is (0.45–0.65)%RH / min, the speed is reduced by a preset frequency of 7%. The preset supply air adjustment ratio and preset return air adjustment ratio reduce the speed of the supply air fan 6 and the return air fan 4, and the preset frequency of the compressor is reduced by 2Hz. If the change rate of supply air humidity is (0.65~0.8)%RH / min, the preset supply air adjustment ratio and preset return air adjustment ratio reduce the speed of the supply air fan 6 and the return air fan 4 by 6%, and the preset frequency of the compressor is reduced by 3Hz. Further, different preset supply air adjustment ratios, preset return air adjustment ratios, and preset frequencies are selected according to the gradient of the supply air change rate to make the anti-condensate splashing treatment more efficient.

[0070] In a further embodiment, please refer to Figure 6The dehumidifier control method further includes the following steps: after adjusting the compressor frequency or fan speed and maintaining this adjustment for a first interval of 1 minute, if the dehumidifier is still in the anti-condensate splashing state, a first judgment method is executed. The first judgment method includes:

[0071] If the speed of the return air fan 4 is greater than or equal to the first return air speed after the fan speed is adjusted again, the speed of the return air fan 4 can continue to be reduced according to the fan speed adjustment method. Otherwise, the speed of the return air fan 4 is adjusted to the first return air speed. The first return air speed refers to the speed that can ensure good return air efficiency. In this embodiment, the first return air speed is 60% of the maximum speed of the return air fan 4.

[0072] If the speed of the air supply fan 6 is greater than or equal to the first air supply speed after the fan speed is adjusted again, the speed of the air supply fan 6 can continue to be reduced according to the fan speed adjustment method. Otherwise, the speed of the air supply fan 6 is adjusted to the first air supply speed. The first air supply speed refers to the speed that can ensure good air supply efficiency. In this embodiment, the first air supply speed is 60% of the maximum speed of the air supply fan 6.

[0073] If the compressor's operating frequency is greater than or equal to the first operating frequency after another frequency adjustment, the compressor's operating frequency can continue to be reduced according to the compressor's frequency adjustment method. Otherwise, the compressor's operating frequency is adjusted to the first operating frequency. The first operating frequency refers to the operating frequency that can ensure good dehumidification capability. In this embodiment, the first operating frequency is 90% of the compressor's maximum operating frequency. In other embodiments, the first interval time can be selected between 0.5 and 5 minutes. By limiting the fan speed to be greater than or equal to the first return air speed, the supply air fan speed to be greater than or equal to the first supply air speed, and the compressor's operating frequency to be greater than or equal to the first operating frequency, the dehumidification effect of the dehumidifier is avoided due to the anti-condensate splashing treatment. This ensures that the dehumidifier achieves a good dehumidification effect while performing the anti-condensate splashing treatment.

[0074] In a further embodiment, please refer to Figure 3The dehumidifier control method further includes the following steps: After the dehumidifier enters the anti-condensation splashing state, the duration of the anti-condensation splashing state is obtained. If the anti-condensation duration is greater than the second preset time of 15 minutes, the speed of the return air fan 4 is adjusted to the second return air speed, the speed of the supply air fan 6 is adjusted to the second supply air speed, and the operating frequency of the compressor is adjusted to the second operating frequency. The second return air speed refers to the speed that can guarantee basic return air efficiency, the second supply air speed refers to the speed that can guarantee basic supply air efficiency, and the second operating frequency refers to the operating frequency that can guarantee basic dehumidification capacity. In this embodiment, the second return air speed is 50% of the maximum speed of the return air fan 4, the second supply air speed is 50% of the maximum speed of the supply air fan 6, and the second operating frequency is 85% of the maximum operating frequency of the compressor. In other embodiments, the second preset time can be selected between 10 and 20 minutes. If high humidity persists after the second preset time has elapsed in the anti-condensation state, it is considered that the current anti-condensation splashing treatment is insufficient. The dehumidifier's adjustment strategy is then changed to maximize the anti-condensation splashing treatment, i.e., the dehumidifier operates at the second return air speed, the second supply air speed, and the second operating frequency. At this time, the dehumidifier's dehumidification effect is average, but it can more efficiently handle the problem of condensation splashing.

[0075] In a further embodiment, please refer to Figure 3 The dehumidifier control method also includes the following steps: After the dehumidifier enters the anti-condensation splashing state, the duration of the anti-condensation splashing state is obtained. If the anti-condensation splashing duration is greater than a third preset time of 20 minutes, the dehumidifier exits the anti-condensation splashing state, and the abnormal duration of the supply air humidity exceeding the preset entry humidity after exiting the anti-condensation splashing state is obtained. If the abnormal duration is greater than the fault judgment time of 2 minutes, a fault signal is issued. In other embodiments, the third preset time can be selected between 15 and 30 minutes, and the fault judgment time can be selected between 1 and 5 minutes. On the one hand, this avoids the dehumidifier being in the anti-condensation splashing state for a long time, affecting the dehumidification effect of the dehumidifier. On the other hand, it controls the operating time of the dehumidifier at the second return air speed, the second supply air speed, and the second operating frequency to avoid affecting the dehumidification effect of the dehumidifier. Furthermore, if the supply air humidity of the dehumidifier is still high after a long period of anti-condensation splashing treatment, it is considered that the dehumidifier has malfunctioned, such as the dehumidifier failing to perform normal anti-condensation splashing treatment or the supply air humidity detection of the dehumidifier malfunctioning, which needs to be determined and resolved.

[0076] In a further embodiment, please refer to Figure 3The dehumidifier control method further includes the following steps: if the dehumidifier is in anti-condensation splashing mode and the supply air humidity is less than the preset exit humidity of 80%RH, obtain a second duration for which the supply air humidity is less than the preset exit humidity; if the second duration is greater than the exit judgment time of 0.5 minutes, the dehumidifier exits the anti-condensation splashing mode; in other embodiments, the exit judgment time can be selected between 0.5 and 2 minutes. After the humidity is lower than the preset exit humidity and the second duration for which the supply air humidity is less than the preset exit humidity is greater than the exit judgment time, it is considered that the dehumidifier has effectively prevented condensation splashing, successfully solved the problem of condensation splashing, and caused the dehumidifier to exit the anti-condensation splashing mode.

[0077] In one embodiment, the control method of the dehumidifier includes the following steps:

[0078] The cumulative running time of the compressor and the supply air humidity of the dehumidifier are obtained. If the supply air humidity is greater than the preset inlet humidity of 85%RH and the cumulative running time is greater than the first preset time of 5 minutes, the first duration of the supply air humidity being greater than the preset inlet humidity is obtained. If the first duration is greater than the entry judgment time of 0.5 minutes, the dehumidifier enters the anti-condensation splash state. The anti-condensation splash duration of the dehumidifier entering the anti-condensation splash state is obtained. Different anti-condensation splash treatments or exiting the anti-condensation splash state are performed according to the length of the anti-condensation splash duration, specifically including three cases: ①, ② and ③.

[0079] ① When the anti-condensation duration is 0-15 minutes, the method for preventing condensate splashing includes the following steps:

[0080] When the supply air humidity is between 85-89%RH, it is considered to be slightly high humidity. Methods to prevent condensate splashing include opening the drain valve.

[0081] When the supply air humidity is between 89-93%RH, it is considered to be moderately high humidity. The method to prevent condensate splashing includes opening the drain valve and adjusting the compressor frequency after 5 seconds, reducing the compressor frequency by 5Hz.

[0082] When the supply air humidity is between 93-99%RH, it is considered to be severely high humidity. The method to prevent condensate splashing includes opening the drain valve, adjusting the compressor frequency after 5 seconds, and reducing the compressor frequency by 5Hz; then continuously acquiring the rate of change of supply air humidity (n / t); if the rate of change of supply air humidity is in the first gradient (0.8~1)%RH / min, then continue to reduce the compressor frequency by 5Hz; if the rate of change of supply air humidity is in the second gradient (0.3~0.8)%RH / min and is between (0.3~0.45)%RH / min, then reduce the speed of the supply air fan 6 and the return air fan 4 by 8% of the preset supply air adjustment ratio and the preset return air adjustment ratio, and reduce the compressor operating frequency by 1Hz of the preset frequency; if the rate of change of supply air humidity is in the second gradient (0.3~0.45)%RH / min... If the humidity change rate is (0.45~0.65)%RH / min and is within the range of (0.45~0.65)%RH / min, then reduce the speed of the supply air fan 6 and the return air fan 4 by 7% of the preset supply air adjustment ratio and preset return air adjustment ratio, and reduce the operating frequency of the compressor by 2Hz. If the humidity change rate is within the second gradient (0.3~0.8)%RH / min and is within the range of (0.65~0.8)%RH / min, then reduce the speed of the supply air fan 6 and the return air fan 4 by 6% of the preset supply air adjustment ratio and preset return air adjustment ratio, and reduce the operating frequency of the compressor by 3Hz. If the humidity change rate is within the third gradient (0~0.3)%RH / min, then reduce the speed of the supply air fan 6 and the return air fan 4 by 10% of the preset supply air adjustment ratio and preset return air adjustment ratio.

[0083] If, after adjusting the compressor frequency or fan speed for a first interval of 1 minute, the dehumidifier remains in anti-condensate splash mode, a first judgment method is executed. The first judgment method includes:

[0084] If the speed of the return air fan 4 is greater than or equal to the first return air speed (60% of the maximum speed of the return air fan 4 in this embodiment) after the fan speed is adjusted again, the speed of the return air fan 4 can continue to be reduced according to the fan speed adjustment method; otherwise, the speed of the return air fan 4 is adjusted to 60% of the maximum speed of the return air fan 4.

[0085] If the speed of the air supply fan 6 is greater than or equal to the first air supply speed (60% of the maximum speed of the air supply fan 4 in this embodiment) after the speed of the fan is adjusted again, the speed of the air supply fan 6 can continue to be reduced according to the fan speed adjustment method; otherwise, the speed of the air supply fan 6 will be adjusted to 60% of the maximum speed of the air supply fan 6.

[0086] If the compressor's operating frequency is ≥ the first operating frequency (90% of the compressor's maximum operating frequency in this embodiment) after the compressor frequency is adjusted again, the compressor's operating frequency can continue to be reduced according to the compressor's frequency adjustment method; otherwise, the compressor's operating frequency is adjusted to 90% of the compressor's maximum operating frequency.

[0087] ② When the anti-condensation duration is 15-20 minutes, the anti-condensation splashing treatment method includes the following steps:

[0088] Adjust the speed of the return air fan 4 to 50% of its maximum speed, adjust the speed of the supply air fan 6 to 50% of its maximum speed, and adjust the operating frequency of the compressor to 85% of its maximum operating frequency.

[0089] ③ When the anti-condensation duration is ≥20min, the dehumidifier exits the anti-condensation splashing state and obtains the abnormal duration during which the supply air humidity is continuously greater than the preset intake humidity after exiting the anti-condensation splashing state; if the abnormal duration is greater than the fault judgment time by 2min, a fault signal is issued.

[0090] During the process of preventing condensate splashing in steps ① or ②, if the supply air humidity is less than the preset exit humidity of 80%RH, the second duration for which the supply air humidity is less than the preset exit humidity is obtained; if the second duration is greater than the exit judgment time of 0.5 minutes, the dehumidifier exits the anti-condensate splashing state, which is considered to be an effective anti-condensate splashing treatment of the dehumidifier, and the problem of condensate splashing has been successfully solved.

[0091] In one embodiment, when the supply air humidity is between 93-99%RH, the anti-condensate splashing treatment method includes the following steps: opening the drain valve, adjusting the compressor frequency after 5 seconds, and reducing the compressor frequency by 5Hz; reducing the speed of the supply air fan 6 according to the preset supply air adjustment ratio, and reducing the speed of the return air fan 4 according to the preset return air adjustment ratio; the preset supply air adjustment ratio = the preset return air adjustment ratio = 5%.

[0092] In one embodiment, when the supply air humidity is between 93-99%RH, the anti-condensate splashing treatment method includes the following steps: opening the drain valve, adjusting the compressor frequency after 5 seconds, reducing the compressor frequency by 5Hz; reducing the speed of the supply air fan 6 according to a preset supply air adjustment ratio, and reducing the speed of the return air fan 4 according to a preset return air adjustment ratio; the preset supply air adjustment ratio = the preset return air adjustment ratio, and the preset supply air adjustment ratio and the preset return air adjustment ratio are adjusted according to the rate of change of supply air humidity. The method for obtaining the rate of change of supply air humidity is: after the supply air humidity changes, the change amount n of supply air humidity and the time t taken are obtained, then the rate of change is (n / t), and the unit is %RH / min; t is usually 1min; specifically, the preset supply air adjustment ratio The method for determining the preset return air adjustment ratio based on the supply air humidity change rate is as follows: After adjusting the fan speed with the preset supply air adjustment ratio = preset return air adjustment ratio = 5%, if the supply air humidity change rate is (0~0.3)%RH / min, then reduce the speed of the supply air fan 6 and the return air fan 4 by 7% of the preset supply air adjustment ratio and preset return air adjustment ratio; if the supply air humidity change rate is (0.3~0.7)%RH / min, then reduce the speed of the supply air fan 6 and the return air fan 4 by 5% of the preset supply air adjustment ratio and preset return air adjustment ratio; if the supply air humidity change rate is (0.7~1)%RH / min, then reduce the speed of the supply air fan 6 and the return air fan 4 by 3% of the preset supply air adjustment ratio and preset return air adjustment ratio.

[0093] In one embodiment, when the supply air humidity is between 93-99%RH, the anti-condensate splashing treatment method includes the following steps: opening the drain valve, adjusting the compressor frequency after 5 seconds, and reducing the compressor frequency by 5Hz; reducing the speed of the supply air fan 6 according to a preset supply air adjustment ratio, and reducing the speed of the return air fan 4 according to a preset return air adjustment ratio; the preset supply air adjustment ratio is less than the preset return air adjustment ratio, the preset supply air adjustment ratio is 3%, and the preset return air adjustment ratio is 6%.

[0094] In one embodiment, when the supply air humidity is between 93-99%RH, the anti-condensate splashing treatment method includes the following steps: opening the drain valve, adjusting the compressor frequency after 5 seconds, and reducing the compressor frequency by 5Hz; reducing the speed of the supply air fan 6 according to a preset supply air adjustment ratio, and reducing the speed of the return air fan 4 according to a preset return air adjustment ratio; the preset supply air adjustment ratio is greater than the preset return air adjustment ratio, the preset supply air adjustment ratio is 6%, and the preset return air adjustment ratio is 4%.

[0095] Secondly, the present invention also provides a computer device 9 for controlling a dehumidifier; please refer to [link to relevant documentation]. Figure 7 ,include:

[0096] The first signal acquisition module 901 is used to acquire the cumulative running time of the compressor, the air humidity of the dehumidifier, and the first duration of the dehumidifier;

[0097] The first judgment module 902 is used to determine whether the cumulative running time is greater than the first preset time and whether the supply air humidity is greater than the preset inlet humidity.

[0098] The first execution module 903 is used to cause the dehumidifier to enter the anti-condensate splashing state when the supply air humidity is greater than the preset entry humidity, the cumulative running time is greater than the first preset time, and the first duration is greater than the entry judgment time.

[0099] In one embodiment, the computer device further includes:

[0100] The second execution module is used to execute one or more of the following according to the execution priority: opening the drain valve > compressor frequency adjustment > fan speed adjustment: opening the drain valve > compressor frequency adjustment > fan speed adjustment.

[0101] In one embodiment, the computer device further includes:

[0102] The first fan speed adjustment module is used to reduce the speed of the supply fan 6 according to the preset supply air adjustment ratio and the speed of the return air fan 4 according to the preset return air adjustment ratio, based on the preset supply air adjustment ratio being equal to the preset return air adjustment ratio.

[0103] In one embodiment, the computer device further includes:

[0104] The second fan speed adjustment module reduces the speed of the supply fan 6 according to the preset supply air adjustment ratio, and reduces the speed of the return air fan 4 according to the preset return air adjustment ratio, based on the preset supply air adjustment ratio being greater than the preset return air adjustment ratio.

[0105] The third fan speed adjustment module reduces the speed of the supply fan 6 according to the preset supply air adjustment ratio, and reduces the speed of the return air fan 4 according to the preset return air adjustment ratio, based on the preset supply air adjustment ratio being less than the preset return air adjustment ratio.

[0106] In one embodiment, the computer device further includes:

[0107] The second signal acquisition module is used to acquire the rate of change of supply air humidity;

[0108] The second judgment module is used to determine whether the supply air humidity is severely high humidity, and when it is severely high humidity, to determine whether the rate of change of supply air humidity is in the first, second or third gradient.

[0109] The third execution module is used to adjust the compressor frequency when the rate of change of supply air humidity is at the first gradient; adjust the compressor frequency and fan speed when the rate of change of supply air humidity is at the second gradient; and adjust the fan speed when the rate of change of supply air humidity is at the third gradient.

[0110] In one embodiment, the computer device further includes:

[0111] The third signal acquisition module is used to acquire the duration after the fan speed is adjusted;

[0112] The third judgment module is used to determine whether the duration after the fan speed adjustment reaches the first interval time. If the first interval time is reached, it determines whether the speed of the return air fan 4 is less than the first return air speed, the speed of the supply air fan 6 is less than the first supply air speed, and the operating frequency of the compressor is less than the first operating frequency after the fan speed is adjusted again.

[0113] The fourth execution module is used after the fan speed is adjusted again:

[0114] When the speed of return air fan 4 is greater than or equal to the first return air speed, the speed of return air fan 4 will be further reduced according to the fan speed adjustment method; otherwise, the speed of return air fan 4 will be adjusted to the first return air speed.

[0115] When the speed of the air supply fan 6 is greater than or equal to the first air supply speed, the speed of the air supply fan 6 will continue to be reduced according to the fan speed adjustment method; otherwise, the speed of the air supply fan 6 will be adjusted to the first air supply speed.

[0116] When the compressor's operating frequency is greater than or equal to the first operating frequency, the compressor's operating frequency will continue to be reduced according to the compressor's frequency adjustment method; otherwise, the compressor's operating frequency will be adjusted to the first operating frequency.

[0117] In one embodiment, the computer device further includes:

[0118] The fourth signal acquisition module is used to acquire the duration of the anti-condensation state when the dehumidifier enters the anti-condensation splash state;

[0119] The fourth judgment module is used to determine whether the anti-condensation duration is greater than the second preset time;

[0120] The fifth execution module is used to adjust the speed of the return air fan 4 to the second return air speed, the speed of the supply air fan 6 to the second supply air speed, and the operating frequency of the compressor to the second operating frequency when the anti-condensation duration is greater than the second preset time.

[0121] In one embodiment, the computer device further includes:

[0122] The fourth signal acquisition module is used to acquire the duration of the anti-condensation splashing state when the dehumidifier enters the anti-condensation splashing state, and to acquire the abnormal duration of the supply air humidity being greater than the preset entry humidity after the dehumidifier exits the anti-condensation splashing state.

[0123] The fifth judgment module is used to determine whether the anti-condensation duration is greater than the third preset time, and if the anti-condensation duration is greater than the third preset time, to determine whether the abnormal duration is greater than the fault judgment time.

[0124] The sixth execution module is used to cause the dehumidifier to exit the anti-condensation splashing state when the anti-condensation duration is greater than the third preset time, and to issue a fault signal when the abnormal duration is greater than the fault judgment time.

[0125] In one embodiment, the computer device further includes:

[0126] The fifth signal acquisition module is used to acquire the second duration during which the supply air humidity is less than the preset exit humidity;

[0127] The sixth judgment module is used to determine whether the supply air humidity is less than the preset exit humidity, and when the supply air humidity is less than the preset exit humidity, it determines whether the second duration is greater than the exit judgment time.

[0128] The seventh execution module is used to cause the dehumidifier to exit the anti-condensate splashing state when the second duration is greater than the exit judgment time.

[0129] Thirdly, the present invention also provides a dehumidifier, comprising:

[0130] At least one memory and at least one processor;

[0131] A memory for storing one or more computer programs, which, when executed by a processor, are used to implement the steps of a control method for a dehumidifier as described above.

[0132] When one or more computer programs are executed by at least one processor, the at least one processor performs the steps of the dehumidifier control method as described above.

[0133] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0134] 1. Based on the supply air humidity, the cumulative running time of the compressor, and the duration of the first cycle, determine whether the dehumidifier is experiencing condensate splashing. If condensate splashing occurs, put the dehumidifier into anti-condensate splashing mode, which has the advantages of stable dehumidification effect and low energy consumption.

[0135] 2. After entering the anti-condensation splashing state, the dehumidifier is instructed to open the drain valve, adjust the frequency of the compressor, and adjust the speed of the fan. The priority of the aforementioned processes is set as drain valve > compressor > fan, which makes the anti-condensation splashing process more precise and reduces the impact of the anti-condensation splashing process on the dehumidifier's dehumidification effect.

[0136] 3. The supply air volume and return air volume are adjusted proportionally, the overall air volume is reduced, and the amount of condensate accumulating at the five points of the heat exchanger is reduced.

[0137] 4. When the preset supply air adjustment ratio is greater than the preset return air adjustment ratio, the return air volume is small, and the air pressure is low when the return air passes through the heat exchanger 5, which makes it less likely for condensate to splash towards the supply air fan 6, making it more suitable for situations where a lot of condensate accumulates on the heat exchanger 5; when the preset supply air adjustment ratio is less than the preset return air adjustment ratio, the return air volume is greater than the supply air volume, and the contact time between the indoor return air and the heat exchanger 5 is shorter, making it less likely for condensate to accumulate on the heat exchanger 5, making it more suitable for situations where a little condensate accumulates on the heat exchanger 5.

[0138] 5. In cases of severe high humidity, the selection of anti-condensation splash treatment methods and the specific adjustment intensity of each method are determined based on the rate of change of supply air humidity over a period of time (after the supply air humidity changes, the amount of humidity change n and the time t consumed are obtained, and the rate of change (n / t) is used as the basis). Under the synergistic effect of each method, the impact of anti-condensation splash treatment on the dehumidification effect of the dehumidifier is minimized to the greatest extent.

[0139] 6. By limiting the speed of the fan to be greater than or equal to the first return air speed, the speed of the supply air fan 6 to be greater than or equal to the first supply air speed, and the operating frequency of the compressor to be greater than or equal to the first operating frequency, the dehumidification effect of the anti-condensate splashing treatment is avoided, and the dehumidifier achieves a good dehumidification effect while performing anti-condensate splashing treatment.

[0140] 7. If high humidity persists after the second preset time has elapsed in the anti-condensation state, it is considered that the current anti-condensation splashing treatment is insufficient. The dehumidifier's adjustment strategy is then changed to maximize the anti-condensation splashing treatment, i.e., the dehumidifier operates at the second return air speed, the second supply air speed, and the second operating frequency. At this time, the dehumidifier's dehumidification effect is average, but it can more efficiently handle the problem of condensation splashing.

[0141] 8. By limiting the time the dehumidifier remains in anti-condensation splash mode to no more than the third preset time, the following measures are taken: First, to prevent the dehumidifier from being in anti-condensation splash mode for an extended period, which could affect its dehumidification effect. Second, to control the time the dehumidifier operates at the second return air speed, the second supply air speed, and the second operating frequency, thus avoiding any impact on its dehumidification effect. If, after a prolonged period of anti-condensation splash mode, the dehumidifier's supply air humidity remains high, it is considered that the dehumidifier has malfunctioned, such as the dehumidifier failing to perform normal anti-condensation splash mode or a malfunction in the dehumidifier's supply air humidity detection, which requires identification and resolution.

[0142] 9. When the humidity is lower than the preset exit humidity, and the second duration of the supply air humidity being lower than the preset exit humidity is greater than the exit judgment time, it is considered that the dehumidifier has effectively prevented condensate splashing, successfully solved the problem of condensate splashing, and caused the dehumidifier to exit the anti-condensate splashing state.

[0143] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and the present invention also intends to include these modifications and variations.

Claims

1. A control method for a dehumidifier, characterized in that, The dehumidifier includes a first air box, a second air box, a third air box, a return air fan, a heat exchanger, a supply air fan, a drain valve, a humidity detection unit, and a compressor. The first air box, the second air box, and the third air box are arranged sequentially and connected to each other. The return air fan is fixed to the first air box. The heat exchanger is located inside the second air box. The supply air fan is located inside the third air box. The drain valve and the humidity detection unit are both fixed on the third air box. The drain valve is located near the bottom of the dehumidifier. The compressor is connected to the heat exchanger through a pipeline. The control method for the dehumidifier includes the following steps: The cumulative running time of the compressor and the supply air humidity of the dehumidifier are obtained. If the supply air humidity is greater than the preset entry humidity and the cumulative running time is greater than the first preset time, the first duration during which the supply air humidity is greater than the preset entry humidity is obtained. If the first duration is greater than the entry judgment time, the dehumidifier enters the anti-condensate splashing state. After the dehumidifier enters the anti-condensate splashing state, it performs anti-condensate splashing treatment; the method of anti-condensate splashing treatment includes one or more of the following: opening the drain valve, adjusting the frequency of the compressor, and adjusting the speed of the fan; the execution priority of the anti-condensate splashing treatment method from high to low is as follows: opening the drain valve, adjusting the frequency of the compressor, and adjusting the speed of the fan; The compressor frequency adjustment is to reduce the compressor frequency; the fan speed adjustment includes the following steps: reducing the speed of the supply fan according to a preset supply air adjustment ratio, and reducing the speed of the return air fan according to a preset return air adjustment ratio. If, after adjusting the frequency of the compressor or the speed of the fan for a first interval, the dehumidifier remains in a state to prevent condensate splashing, a first judgment method is executed. The first judgment method includes: If the speed of the return air fan is greater than or equal to the first return air speed after the fan speed is adjusted again, the speed of the return air fan will continue to be reduced according to the fan speed adjustment method; otherwise, the speed of the return air fan will be adjusted to the first return air speed; the first return air speed is 60% of the maximum speed of the return air fan. If the speed of the air supply fan is greater than or equal to the first air supply speed after the fan speed is adjusted again, the speed of the air supply fan will continue to be reduced according to the fan speed adjustment method; otherwise, the speed of the air supply fan will be adjusted to the first air supply speed; the first air supply speed is 60% of the maximum speed of the air supply fan. If the compressor's operating frequency is greater than or equal to the first operating frequency after the compressor's frequency is adjusted again, the compressor's operating frequency will continue to be reduced according to the compressor's frequency adjustment method; otherwise, the compressor's operating frequency will be adjusted to the first operating frequency; the first operating frequency is 90% of the compressor's maximum operating frequency.

2. The control method for a dehumidifier according to claim 1, characterized in that, The preset air supply adjustment ratio is equal to the preset return air adjustment ratio.

3. The control method for a dehumidifier according to claim 1, characterized in that, The preset air supply adjustment ratio is less than or greater than the preset return air adjustment ratio.

4. The control method for a dehumidifier according to claim 1, characterized in that, The frequency adjustment of the compressor and the speed adjustment of the fan are both based on the magnitude and rate of change of the supply air humidity; After adjusting the frequency of the compressor under conditions of high humidity: If the rate of change of the supply air humidity is in the first gradient, then the frequency adjustment of the compressor continues; If the rate of change of the supply air humidity is in the second gradient, then the frequency of the compressor and the speed of the fan are adjusted. If the rate of change of the supply air humidity is in the third gradient, then stop the frequency adjustment of the compressor and adjust the speed of the fan. The term "severe high humidity" refers to a supply air humidity between 93-99%RH; the first gradient is (0.8-1)%RH / min; the second gradient is (0.3-0.8)%RH / min; and the third gradient is (0-0.3)%RH / min.

5. The control method for a dehumidifier according to claim 1, characterized in that, It also includes the following steps: After the dehumidifier enters the anti-condensation splashing state, the duration of the anti-condensation splashing state is obtained. If the anti-condensation duration is greater than a second preset time, the speed of the return air fan is adjusted to a second return air speed, the speed of the supply air fan is adjusted to a second supply air speed, and the operating frequency of the compressor is adjusted to a second operating frequency. The second return air speed is 50% of the maximum speed of the return air fan, the second supply air speed is 50% of the maximum speed of the supply air fan, and the second operating frequency is 85% of the maximum operating frequency of the compressor.

6. The control method for a dehumidifier according to claim 5, characterized in that, It also includes the following steps: After the dehumidifier enters the anti-condensation splashing state, the anti-condensation duration of the dehumidifier entering the anti-condensation splashing state is obtained. If the anti-condensation duration is greater than a third preset time, the dehumidifier exits the anti-condensation splashing state, and the abnormal duration of the supply air humidity being greater than the preset entry humidity after exiting the anti-condensation splashing state is obtained. If the duration of the abnormality is longer than the fault determination time, a fault signal is issued.

7. The control method for a dehumidifier according to claim 5, characterized in that, It also includes the following steps: If the dehumidifier is in anti-condensate splashing state and the supply air humidity is less than the preset exit humidity, obtain the second duration during which the supply air humidity is less than the preset exit humidity. If the second duration is greater than the exit judgment time, the dehumidifier exits the anti-condensate splashing state.

8. A computer device for controlling a dehumidifier, used to execute the control method for a dehumidifier according to claim 1, characterized in that, include: The first signal acquisition module is used to acquire the cumulative running time of the compressor, the air humidity of the dehumidifier, and the first duration of the dehumidifier; The first judgment module is used to determine whether the cumulative running time is greater than a first preset time and whether the supply air humidity is greater than a preset inlet humidity. The first execution module is used to cause the dehumidifier to enter the anti-condensate splashing state when the supply air humidity is greater than the preset entry humidity, the cumulative running time is greater than the first preset time, and the first duration is greater than the entry judgment time.

9. A dehumidifier, characterized in that, include: At least one memory and at least one processor; The memory is used to store one or more computer programs, which, when executed by a processor, are used to implement the steps of a dehumidifier control method as described in any one of claims 1-7. When the one or more computer programs are executed by the at least one processor, the at least one processor implements the steps of the dehumidifier control method as described in any one of claims 1-7.

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