A control method for compensating water pump attenuation in dehumidifiers

Abstract

This invention relates to the technical field of dehumidifier water pump control methods, and particularly to a control method for compensating for water pump attenuation in dehumidifiers. The control method for compensating for water pump attenuation in dehumidifiers includes: S100, clearing water pump malfunctions and activating the water full protection function; S200, when water full protection occurs, calculating the water pump running time compensation value and starting the water pump; S300, if the water full protection time is greater than or equal to a first preset time and the water full protection state is maintained, then the water pump is judged to be abnormal and shut down; otherwise, the water pump is judged to be normal; S400, the water pump is shut down after running for a second preset time T1; S500, calculating the cumulative running time T of the water pump. t Furthermore, when the water pump is off, a timer starts after the compressor is turned on and continues until the water pump restarts. This control method for water pump attenuation compensation in dehumidifiers offers the advantage of flexibly adjusting the water pump's on-time to achieve closed-loop control and more precise control logic.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dehumidifier water pump control methods, and particularly relates to a control method for water pump attenuation compensation of a dehumidifier. BACKGROUND

[0002] A dehumidifier is one of the household appliances that every family in a humid climate area must have. The dehumidifier removes moisture in the air and adjusts the humidity to a level that people can adapt to. During operation, the dehumidifier extracts moisture from the air and stores it in the water tank. When the water tank reaches the full state, if the dehumidifier does not have a water pump, the water in the water tank needs to be manually poured out. If there is a water pump, the usual way is to extract the water in the water tank by controlling the running time of the water pump. This method has many problems: first, when the water pump runs for a certain time, the water pumping capacity of the water pump will decrease; second, when there is dust or dirt attached to the water pipe, the water pumping capacity of the water pump will also decrease. When the water pumping capacity of the water pump decreases, the water tank cannot be emptied within a fixed time.

[0003] Now in order to solve the above problems, many methods have been taken, for example, a Chinese invention patent with publication number CN114811870A discloses a kind of air conditioner and its water pump attenuation compensation control method, the air conditioner includes: refrigerant circulation loop, compressor, water tank, water pump, water hitting motor, high water level switch and controller. The controller is configured to: after the air conditioner is started and runs, determine that the high water level switch is closed, and control the water pump to run, every first preset time, control the water hitting motor to run, when the rotating speed of the water hitting motor exceeds the idle rotating speed threshold, control the water pump to stop running, and obtain the first running time of the water pump, according to the first running time and the second preset time, judge whether the water pump has mechanical attenuation, if so, update the second preset time according to the first running time and the second preset time, to compensate for the attenuation of the water pump during operation, otherwise, control the water hitting motor to stop running, and control the water pump to stop running after the second preset time before updating, to improve the water pumping effect of the water pump and the drainage effect of the air conditioner. This method takes into account the mechanical attenuation of the water pump due to long use time, but does not consider the presence of dust or dirt inside the water pump during use, which leads to inaccurate control of the water pump. In addition, the adjustment method is to constantly update and compensate the second preset time, which cannot fundamentally solve the problem of water pump attenuation and cannot accurately control the water pump. SUMMARY

[0004] Therefore, the present application aims to provide a control method for water pump attenuation compensation of a dehumidifier, which obtains the water pumping time of the water pump under normal conditions and the dehumidification time of the dehumidifier under normal conditions, determines whether there is fault information in the water pump according to the dehumidification time of the dehumidifier, determines a fault compensation value, determines a service life compensation value according to the service life information of the water pump, and performs attenuation compensation control of the water pump by superimposing the two compensation values on the theoretical water pumping time, thereby solving the problem of being unable to fundamentally solve the water pump attenuation and the problem of being unable to accurately control the water pump.

[0005] To solve the above problems, the present application provides a control method for water pump attenuation compensation of a dehumidifier, which comprises:

[0006] S100, clearing water pump faults in a shutdown state and starting a water full protection function;

[0007] S200, when the water full protection occurs, determining that the water pump is in a closed state, calculating a water pump operation time compensation value, and starting the water pump;

[0008] The water pump operation time compensation value is calculated according to state information of the water pump, and the state information comprises service life information and fault information;

[0009] S300, when the water full protection time is greater than or equal to a first preset time, the water full protection state is still maintained, and it is determined that the water pump is abnormal, and the water pump is closed;

[0010] If the water full protection flag is cancelled before the water full protection time reaches the first preset time, it is determined that the water pump is normal;

[0011] S400, the water pump is closed after running for a second preset time T1;

[0012] S500, calculating the cumulative operation time T of the water pump t And, in the case that the water pump is closed, the compressor is started, and the timing is started until the water pump is started again.

[0013] Further, in the state that the water pump runs at a rated water pumping amount, the water level is reduced to 0 within a third preset time T2.

[0014] Further, in step S200, the fault information comprises at least one of the following situations: the water pump contains silt, the water pump is accumulated with a dust layer, and the water pump is blocked by dirt.

[0015] In the case that the water pump has fault information, T1 and T2 are at least different by a fault coefficient M.

[0016] Further, the method for determining the fault coefficient M comprises:

[0017] The theoretical time of the dehumidifier from the water level of 0 to full is t, the actual full time is t', then:

[0018] Δt=t-t' ……………………(1);

[0019] 30(i-1)s≤Δt i <30is, M i =10(i-1)s;

[0020] Wherein, i is a positive integer greater than or equal to 1.

[0021] Further, when the water pipe is cleaned, t=t', Δt=0, M=0.

[0022] Further, the compensation value of the cumulative running time T of the water pump calculated according to the life information of the water pump is N. t

[0023] Further, the method for determining the compensation value N comprises: when the water pump is used for more than each fourth preset time, the value N is increased by a fifth preset time.

[0024] Further, the fourth preset time is 1000h, and the fifth preset time is N=300s.

[0025] Further, when the water pump usage time is less than the fourth preset time, t' < t;

[0026] When the water pump usage time exceeds the fourth preset time, t' < t+N.

[0027] Further, the running time compensation value obtained by comprehensively considering the life information and the fault information is M+N, and T1=T2+M+N.

[0028] Compared with the prior art, the control method for the water pump attenuation compensation of the dehumidifier has the following advantages:

[0029] The technical scheme has the advantages that the water pumping time of the water pump under normal conditions and the dehumidification time of the dehumidifier under normal conditions are obtained, it is determined whether there is fault information in the water pump according to the dehumidification time of the dehumidifier, a fault compensation value is determined, a life compensation value is determined according to the life information of the water pump, the two compensation values are superimposed on the theoretical water pumping time, and the attenuation compensation control of the water pump is performed, the blockage and service life of the water pump are used as conditions for setting the water pump opening time, the water pump opening time is flexibly adjusted, the closed-loop control of the water pump is realized, and the control logic is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 The flowchart of the control method for the water pump attenuation compensation is described for the embodiments of the application. ​

[0031] Figure 2 A flow chart of a water pump attenuation compensation method according to an embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0033] The descriptions of “first”, “second”, “upper”, “lower”, and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features defined as “first”, “second”, “upper”, “lower” can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but must be based on the realization of a person skilled in the art, and when the technical solutions of the embodiments can be combined, they are all within the protection scope required by the present application.

[0034] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0035] As shown in the accompanying drawings, Figure 1 A control method for water pump attenuation compensation of a dehumidifier, comprising:

[0036] S100, clearing water pump failure in a shutdown state, and starting a water full protection function;

[0037] S200, when the water full protection occurs, judging that the water pump is in a closed state, calculating a water pump running time compensation value, and starting the water pump. The water pump running time compensation value is calculated according to state information of the water pump, and the state information includes life information and failure information.

[0038] The failure information includes at least one of the following situations: the water pump contains silt, the water pump is accumulated with ash layer, and the water pump is blocked by dirt.

[0039] Specifically, the method for calculating the water pump running time compensation value comprises:

[0040] In a state where the water pump runs at a rated pumping capacity, the water level is lowered to 0 position after a third preset time T2.

[0041] In the case where the water pump has failure information, the actual running time T1 of the water pump and T2 are at least different by a failure coefficient M.

[0042] The method for determining the failure coefficient M comprises:

[0043] The theoretical time from the start of the dehumidifier when the water level is 0 to full is t, and the actual full time is t', then:

[0044] Δt=t-t'………………(1);

[0045] 30(i-1)s≤Δt i <30is, then, M i =10(i-1)s.

[0046] Where i is a positive integer greater than or equal to 1.

[0047] Right now,

[0048] If 0s ≤ Δt1 < 30s, then M1 = 0s;

[0049] If 30s ≤ Δt2 < 60s, then M2 = 10s;

[0050] If 60s ≤ Δt3 < 90s, then M3 = 20s;

[0051] ...

[0052] After the water pipe is cleaned, t=t', Δt=0, M=0.

[0053] The cumulative operating time T of the water pump is calculated based on the pump's lifespan information. t The compensation value is N. The method for determining the compensation value N includes: after the water pump has been used for more than each fourth preset time, the N value is increased by a fifth preset time. Preferably, the fourth preset time is 1000 hours, and the fifth preset time is N = 300 seconds.

[0054] When the water pump usage time is less than the fourth preset time, t' < t.

[0055] When the water pump is used for more than the fourth preset time, t' < t + N.

[0056] The operating time compensation value obtained after comprehensively considering lifespan information and fault information is M+N, and T1=T2+M+N.

[0057] S300: If the water full protection time is greater than or equal to the first preset time and the water full protection state is still maintained, the water pump is judged to be abnormal and the water pump is shut off.

[0058] If the water full protection indicator is canceled before the first preset time is reached, the water pump is considered to be normal.

[0059] S400: The water pump will shut off after running for the second preset time T1.

[0060] S500, Calculate the cumulative running time T of the water pump. t Furthermore, when the water pump is off, the timer starts after the compressor is turned on and continues until the water pump is turned on again.

[0061] Through the control method for the water pump attenuation compensation of the dehumidifier in the above embodiment, the pumping time of the water pump under normal conditions and the dehumidification time of the dehumidifier under normal conditions are obtained, whether there is fault information in the water pump is determined according to the dehumidification time of the dehumidifier, a fault compensation value is determined, a service life compensation value is determined according to the service life information of the water pump, the attenuation compensation control of the water pump is performed by superimposing the two compensation values on the theoretical pumping time, the clogging and the service life of the water pump are taken as the conditions for setting the water pump opening time, the water pump opening time is flexibly adjusted, the closed-loop control of the water pump is realized, and the control logic is more accurate.

[0062] Although the present application is disclosed as above, it is not limited to the above. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and the protection scope of the present application should be limited by the scope defined by the claims.

Claims

1. A control method for water pump attenuation compensation of a dehumidifier, characterized by, Comprise: S100, clear water pump failure in the shutdown state, open the water full protection function; S200, when the water full protection occurs, determine that the water pump is in the closed state, calculate the water pump running time compensation value, and open the water pump; According to the state information of the water pump, the water pump running time compensation value is calculated, and the state information comprises life information and failure information; The failure information comprises at least one of the following conditions: the water pump contains silt, the accumulation of ash layer and the blockage of dirt; In the state that the water pump runs at the rated water pumping capacity, the water level is reduced to 0 position after a third preset time T2; In the case that the water pump has failure information, T1 and T2 differ by at least a failure coefficient M; The method for determining the failure coefficient M comprises: Determine the theoretical time t from the water level of 0 position to full of the dehumidifier, and the actual full time t', then: Δt=t-t' ……………………(1); 30 (i-1) s < Δt i < 30 is, then, M i = 10 (i-1) s; Wherein, i is a positive integer greater than or equal to 1; The pump cumulative running time T is calculated based on the life information of the water pump t The compensation value is N; The running time compensation value obtained by comprehensively considering the life information and the failure information is M+N, and T1=T2+M+N; S300, when the water full protection time is greater than or equal to the first preset time, the water full protection state is still maintained, then it is judged that the water pump is abnormal, and the water pump is closed; If the water full protection time reaches the first preset time, the water full protection flag is cancelled, then it is judged that the water pump is normal; S400, when the water pump runs for a second preset time T1, it is closed; S500, calculate the cumulative running time T of the water pump t And in the case of the water pump is closed, the compressor is turned on, and the timing starts until the water pump is turned on again.

2. The control method for water pump attenuation compensation of a dehumidifier according to claim 1, wherein When the water pipe is cleaned, t=t', Δt=0, and M=0.

3. The control method for water pump attenuation compensation of a dehumidifier according to claim 1, wherein The method for determining the compensation value N comprises: when the water pump is used for more than each fourth preset time, the value N is increased by a fifth preset time.

4. The control method for water pump attenuation compensation of a dehumidifier according to claim 3, wherein The fourth preset time is 1000h, and the fifth preset time is N=300s.

5. The control method for water pump attenuation compensation of a dehumidifier according to any one of claims 1 to 4, wherein When the water pump usage time is less than the fourth preset time, t'<t; When the water pump usage time exceeds the fourth preset time, t'<t+N.

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