Control method for draining pump of washing equipment and washing equipment
By adjusting the drainage timing of the drainage pump according to the water inlet level in the washing machine pump chamber, the problems of large noise and short service life under fixed time period control are solved, and the noise reduction and long life of the pump are achieved during the washing machine drainage process.
Patent Information
- Application Number
- CN202310702462.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-14
- Publication Date
- 2024-12-17
AI Technical Summary
The fixed-time period control of existing washing machine drain pumps leads to high noise and short service life, especially when the water volume decreases, air is sucked in, causing noise to increase, and frequent openings cause damage to the pump.
By obtaining the inlet water level in the pump chamber, adjusting the drainage timing of the drainage pump, including presetting continuous drainage and intermittent drainage strategies corresponding to different water levels, controlling the drainage pump to extend the drainage time when the water level rises quickly, and shortening the drainage when the water level rises slowly Time, avoid air ingress to reduce noise, and store water first and then drain water at low water levels to reduce frequent opening.
It effectively reduces noise generation during drainage, extends the service life of drainage pumps, and improves user experience.
Smart Images
Figure CN119145173A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of adding clothing treatment agents, and in particular, relates to a control method for a drainage pump of a washing device and the washing device. Background Art
[0002] "Washing equipment" refers to a general term for a type of household appliances used to wash clothes, dishes and other laundry, such as washing machines, dishwashers, etc.
[0003] At present, washing machines use drainage pumps for drainage, in which the start and stop of the drainage pumps are controlled according to a fixed time cycle. However, this method of indiscriminately controlling the start and stop of the drainage pump according to a fixed time cycle will generate a lot of noise. When the water in the drainage pump is sufficient, no air will be sucked into the drainage pump, and the noise generated by drainage is small at this time; and in the later stage of drainage, the water in the drainage pump decreases, and air will be sucked into the drainage pump, and air and water will be mixed and discharged. At this time, the noise caused by drainage will increase significantly, and the service life of the drainage pump will also be short.
[0004] In view of this, the present invention is proposed. Summary of the invention
[0005] The present invention provides a control method for a drainage pump of a washing device and a washing device, so as to reasonably control the drainage timing, drain as much washing water as possible when the drainage pump is not easy to generate noise, so as to reduce the generation of noise during the drainage process and extend the service life of the drainage pump.
[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:
[0007] A control method for a drain pump of a washing device, the drain pump comprising a pump chamber for containing washing water, the control method comprising: during the process of water filling the pump chamber, obtaining a water level V in the pump chamber within a preset time, and controlling the drain pump to drain water according to a drainage sequence corresponding to the obtained water level V.
[0008] Furthermore, a first water level V0 is preset, and the drainage sequence includes a continuous drainage time length, and the continuous drainage time length corresponding to the acquired water inlet level V≥V0 is greater than the continuous drainage time length corresponding to the acquired water inlet level V<V0.
[0009] Further, the continuous drainage time corresponding to the acquired inlet water level V≥V0 is greater than the shutdown time of the drainage pump; and / or the continuous drainage time corresponding to the acquired inlet water level V<V0 is less than the shutdown time of the drainage pump.
[0010] Furthermore, the second water level V is preset 00 , and V 00<V0, when the obtained inlet water level V<V0, the control compares the obtained inlet water level V with V 00 If the water level V≥V 00 , the drainage pump can be controlled to drain water. If V<V 00 , the control is to first store water in the pump chamber, and then control the drainage pump to drain water.
[0011] Furthermore, the water inflow L0 is preset, and when the water inflow level V≥V 00 When the water inflow L in the current pump chamber is obtained, the obtained water inflow L is compared with the preset water inflow L0. If L≥L0, the drainage pump is controlled to drain water.
[0012] Further, controlling the water to be stored in the pump chamber first includes: controlling the water storage time to be negatively correlated with the acquired water inlet level V.
[0013] Further, when the acquired inlet water level V≥V0, the drainage pump is controlled to continuously drain water until the acquired inlet water level V is less than the preset first water level V0.
[0014] Further, when the obtained inlet water level V≥V0, the drainage pump is controlled to drain water intermittently;
[0015] Preferably, controlling the drainage pump to intermittently drain water includes: as the number of intermittent drainage times increases, controlling the drainage pump to reduce the duration of continuous drainage.
[0016] Furthermore, during the intermittent drainage process, as the number of intermittent drainage increases, the time interval between intermittent drainage increases.
[0017] The present invention also provides a washing device which is controlled by any control method described in the above technical solutions.
[0018] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.
[0019] In the present invention, the inlet water level V in the pump chamber within the preset time represents the speed at which the water level in the current pump chamber rises. If the inlet water level V is larger, it means that the water level in the pump chamber rises faster and the water volume in the pump chamber is sufficient. During the drainage process, there is almost no air in the pump chamber. In this case, the drainage is not easy to generate noise. At this time, a drainage sequence that is compatible with the inlet water level V is selected, so that the drainage time is longer in the stage where the water level in the pump chamber rises faster and is less likely to generate noise, that is, as much washing water as possible is drained away in the stage where the drainage pump is less likely to generate noise, thereby reducing the noise generated during the drainage process.
[0020] On the contrary, if the inlet water level V is small, there will be air in the pump chamber during the drainage process. In this case, the drainage will easily generate noise. At this time, the drainage time should be shortened as much as possible to reduce the noise.
[0021] In the present invention, if the obtained water inlet level V ≥ V 00 , it means that although the water level within the current preset time is low and prone to noise, it still needs to be drained in time, otherwise it will seriously affect the drainage efficiency. At this time, the control shortens the continuous drainage time, which not only ensures that the drainage pump of the washing equipment can drain normally, but also reduces the noise.
[0022] On the contrary, if the obtained water level V<V 00 , it means that the water level in the current preset time is very low, and a lot of washing water will not accumulate in the pump cavity in a short time. At this time, if the continuous drainage time is still shortened, the drain pump cannot fully play its role, but will be damaged by repeated opening and closing of the drain pump. At this time, the control first stores water in the pump cavity, and after the water is stored to a certain amount or a certain length of time, the drain pump is controlled to drain water, so as to give full play to the role of the drain pump and avoid frequent opening of the drain pump to generate large noise and cause damage to the drain pump.
[0023] The washing device of the present invention is controlled by the control method of the present invention. The washing device of the present invention is not easy to generate noise during the drainage process, and the user experience is good.
[0024] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:
[0026] Figure 1 A control method flow chart of the present invention;
[0027] Figure 2 Another control method flow chart of the present invention;
[0028] Figure 3 This is another control method flow chart of the present invention.
[0029] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.
[0031] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] "Washing equipment" refers to a general term for household appliances used to wash clothes, dishes, and other laundry, such as washing machines, dishwashers, etc. The washing equipment uses a drainage pump to drain water, and the drainage pump includes a pump chamber for containing washing water. The start and stop of the drainage pump of the present invention is adjusted according to the water inflow condition of the drainage pump chamber.
[0034] Specifically, the present invention provides a control method for a drain pump of a washing device, comprising: during the process of filling water into a pump chamber of the drain pump, obtaining a water level V in the pump chamber within a preset time, and controlling the drain pump to drain water according to a drainage timing corresponding to the obtained water level V.
[0035] Specifically, Figure 1 As shown, the control method of the washing equipment drainage pump includes the following steps:
[0036] S1, start;
[0037] S2, preset drainage timing corresponding to different water inlet levels;
[0038] S3, filling water into the pump chamber of the drainage pump;
[0039] S4. Obtain the water level V of the pump chamber within a preset time; the preset time may be a factory preset value, such as 1 minute, 30 seconds; or, the preset time is related to the total drainage time, for example, if the preset total drainage time is 10 minutes, the preset time is 1 / 10 of the total drainage time;
[0040] S5, selecting a drainage timing corresponding to the acquired water inlet level V; wherein the drainage timing includes: controlling the time when the drainage pump is turned on and the duration for which the drainage pump is continuously turned on, etc.;
[0041] S6, controlling the drainage according to the selected drainage sequence;
[0042] S7, determine whether the drainage is completed; if so, execute step S8; if not, return to step S4;
[0043] S8. End.
[0044] Wherein, judging whether the drainage is completed in step S7 includes: accumulating the total drainage time, judging whether the accumulated total drainage time reaches the preset total time, if so, judging that the drainage is completed; otherwise, judging that the drainage is not completed. Alternatively, judging whether the drainage is completed in step S7 includes: a water level sensor is provided in the pump cavity, and the water level value in the pump cavity is obtained multiple times continuously, and if the multiple water level values obtained are close to 0, it is judged that the drainage is completed.
[0045] In step S4 of the present invention, obtaining the water level V of the pump chamber within a preset time includes:
[0046] S41, preset time t0;
[0047] S42, obtaining the current water level V in the pump chamber 01 After the preset time t0, the water level V in the pump chamber is obtained again 02 , water level V = V 02 -V 01 .
[0048] In the present invention, the inlet water level V in the pump chamber within the preset time represents the speed at which the water level in the current pump chamber rises. If the inlet water level V is larger, it means that the water level in the pump chamber rises faster and the water volume in the pump chamber is sufficient. During the drainage process, there is almost no air in the pump chamber. In this case, the drainage is not easy to generate noise. At this time, a drainage sequence that is compatible with the inlet water level V is selected, so that the drainage time is longer in the stage where the water level in the pump chamber rises faster and is less likely to generate noise, that is, as much washing water as possible is drained away in the stage where the drainage pump is less likely to generate noise, thereby reducing the noise generated during the drainage process.
[0049] On the contrary, if the water inlet level V is small, it means that the water level in the pump chamber rises slowly and the amount of water in the pump chamber is relatively small. During the drainage process, there will be air in the pump chamber. In this case, the drainage will easily generate noise. At this time, control the drainage time to shorten as much as possible to reduce the noise.
[0050] As an embodiment of the present invention, a first water level V0 is preset, and the drainage sequence includes a continuous drainage duration, and the continuous drainage duration corresponding to the acquired inlet water level V≥V0 is greater than the continuous drainage duration corresponding to the acquired inlet water level V<V0. The continuous drainage duration is the duration for controlling the drainage pump to be continuously turned on.
[0051] Specifically, Figure 2 As shown, the control method of the washing equipment drainage pump includes the following steps:
[0052] S1, start;
[0053] S2, preset first water level V0, continuous drainage time t1, continuous drainage time t2, t1>t2; wherein, the first water level V0 is an empirical value verified by multiple tests. Under the first water level V0, the noise generated by the drainage pump during drainage is small. Once the water level V in the pump cavity is lower than the first water level V0 within the preset time, the noise generated during drainage is large. The first water level V0 corresponding to different washing equipment may be different.
[0054] S3, filling water into the pump chamber of the drainage pump;
[0055] S4, obtaining the water level V in the pump chamber within a preset time;
[0056] S5, determine whether the obtained water inlet level V is greater than or equal to V0; if so, execute step S6; otherwise, execute step S7;
[0057] S6, select the continuous drainage time t1 to drain water, and execute step S8;
[0058] S7, select the continuous drainage time t2 to drain water, and execute step S8;
[0059] S8, determine whether the drainage is completed; if so, execute step S8; if not, return to step S4;
[0060] S9. End.
[0061] In this embodiment, if the obtained water inlet level V≥V0, it means that there is sufficient water in the pump chamber of the current drain pump. During the drainage process, there is almost no air in the pump chamber. At this time, the drain pump is controlled to continue draining for a longer time to achieve the purpose of draining as much washing water as possible when the drain pump is not easy to generate noise.
[0062] On the contrary, if the obtained inlet water level V is less than V0, it means that there is air in the pump chamber of the current drainage pump. During the drainage process, the airflow is turbulent and it is easy to generate loud noise. At this time, the drainage pump is controlled to have a shorter continuous drainage time to shorten the operation time of the drainage pump as much as possible during the stage when the drainage pump is prone to generate noise, thereby reducing the noise generated.
[0063] As an implementation of this embodiment, the continuous drainage time corresponding to the obtained inlet water level V≥V0 is greater than the shutdown time of the drainage pump. Alternatively, the continuous drainage time corresponding to the obtained inlet water level V<V0 is less than the shutdown time of the drainage pump. Alternatively, the continuous drainage time corresponding to the obtained inlet water level V≥V0 is greater than the shutdown time of the drainage pump; and the continuous drainage time corresponding to the obtained inlet water level V<V0 is less than the shutdown time of the drainage pump.
[0064] For example, in this embodiment, a complete opening and closing cycle of the drainage pump is preset to be 5 minutes. If the obtained inlet water level V≥V0, the drainage pump is controlled to be opened for 4 minutes and closed for 1 minute in one opening and closing cycle, and then opened for 4 minutes and closed for 1 minute, and so on and so forth until the drainage is completed. If the obtained inlet water level V<V0, the drainage pump is controlled to be opened for 1 minute and closed for 4 minutes in one opening and closing cycle, and then opened for 1 minute and closed for 4 minutes, and so on and so forth until the drainage is completed.
[0065] In this embodiment, the opening and closing time of the drainage pump is reasonably allocated according to the obtained water inlet level V, so as to achieve the purpose of emptying the washing water and effectively reduce the generation of noise.
[0066] As an embodiment of the present invention, a method for controlling a drain pump of a washing device includes: presetting a second water level V 00 , and V 00 <V0. When the obtained inlet water level V<V0, the control compares the obtained inlet water level V with V 00 If the water level V≥V 00 , the drainage pump can be controlled to drain water. If V<V 00 , the control is to first store water in the pump chamber, and then control the drainage pump to drain water.
[0067] In this embodiment, if the obtained water inlet level V ≥ V 00 , it means that although the water level within the current preset time is low and prone to noise, it still needs to be drained in time, otherwise it will seriously affect the drainage efficiency. At this time, the control shortens the continuous drainage time, which not only ensures that the drainage pump of the washing equipment can drain normally, but also reduces the noise.
[0068] On the contrary, if the obtained water level V<V 00, it means that the water level in the current preset time is very low, and a lot of washing water will not accumulate in the pump cavity in a short time. At this time, if the continuous drainage time is still shortened, the drain pump cannot fully play its role, but will be damaged by repeated opening and closing of the drain pump. At this time, the control first stores water in the pump cavity, and after the water is stored to a certain amount or a certain time, the drain pump is controlled to drain water, so as to give full play to the role of the drain pump and avoid frequent opening of the drain pump to generate large noise and cause damage to the drain pump.
[0069] As an implementation of this embodiment, the control method of the washing equipment drainage pump includes: presetting the water inflow volume L0, when the obtained water inflow level V≥V 00 When the water inflow L in the current pump chamber is obtained, the obtained water inflow L is compared with the preset water inflow L0. If L≥L0, the drainage pump is controlled to drain water.
[0070] Specifically, as another implementation of this embodiment, Figure 3 As shown, the control steps include:
[0071] S1, start;
[0072] S2, preset first water level V0, preset second water level V 00 , continuous drainage time t1, continuous drainage time t2, t1>t2, V0>V 00 , preset water inlet volume L0;
[0073] S3, filling water into the pump chamber of the drainage pump;
[0074] S4, obtaining the water level V in the pump chamber within a preset time;
[0075] S5, determine whether the obtained water inlet level V is greater than or equal to V0; if so, execute step S6; otherwise, execute step S7;
[0076] S6, select the continuous drainage time t1 to drain water, and execute step S12;
[0077] S7: Determine whether the obtained water inlet level V is greater than or equal to V 00 ; If yes, go to step S8; if no, go to step S9;
[0078] S8, select the continuous drainage time t2 to drain water, and execute step S12;
[0079] S9, control to store water in the pump cavity first;
[0080] S10, obtaining the current water inflow L in the pump chamber;
[0081] S11, determine whether the acquired water inflow L is greater than or equal to L0; if so, control to execute step S8; if not, return to step S9;
[0082] S12, determine whether the drainage is completed; if so, execute step S13; if not, return to step S4;
[0083] S13, end.
[0084] In this embodiment, when the obtained water inlet level V ≥ V 00 It indicates that there is air in the pump chamber of the drainage pump, and the airflow is turbulent, which is easy to produce loud noise. Therefore, it is necessary to accurately control the opening time of the drainage pump to avoid the problem of opening too early and generating noise, and opening too late and failing to drain water in time.
[0085] This embodiment accurately controls the opening time of the drain pump by comparing the water inlet volume L in the pump chamber with the preset water inlet volume L0. For example, when the obtained water inlet volume L is greater than or equal to L0, it indicates that the current water inlet volume in the pump chamber is sufficient. At this time, the drain pump is controlled to start draining, and the continuous drainage time is less than the closing time of the drain pump. On the basis of ensuring that the washing equipment can drain normally, the noise generation is reduced.
[0086] As another implementation of this embodiment, controlling the water to be stored in the pump chamber first includes: controlling the water storage time to be negatively correlated with the obtained water inlet level V. That is, the larger the obtained water inlet level V is, the shorter the water storage time is.
[0087] In the present embodiment, the larger the obtained water inlet level V value is, the more water flows into the pump chamber per unit time, and the shorter the water inlet time required to fill the pump chamber. Therefore, controlling the water storage time is negatively correlated with the obtained water inlet level V. This can avoid the phenomenon that the water storage time is too long, resulting in excessive water in the pump chamber and inability to drain water in time. It can also avoid the situation that the water storage time is too short, the drainage pump is frequently turned on, and more noise is generated.
[0088] As another embodiment of the present invention, when the acquired inlet water level V≥V0, the drainage pump is controlled to continuously drain water until the acquired inlet water level V is less than the preset first water level V0.
[0089] Specifically, the control steps include:
[0090] S1, start;
[0091] S2, preset the first water level V0;
[0092] S3, filling water into the pump chamber of the drainage pump;
[0093] S4, obtaining the water level V in the pump chamber within a preset time;
[0094] S5, determine whether the obtained water inlet level V is greater than or equal to V0; if so, execute step S6; if not, execute step S7;
[0095] S6, control the drainage pump to continuously drain water, and execute step S8;
[0096] S7, control and select the continuous drainage time corresponding to the acquired water inlet level V to drain water, and execute step S8;
[0097] S8, determine whether the drainage is completed; if so, execute step S9; if not, return to step S4;
[0098] S9. End.
[0099] In this embodiment, when the obtained water inlet level V≥V0, there is almost no air in the pump cavity. At this time, the drainage pump is controlled to continuously drain water so as to drain as much washing water as possible at the stage where the drainage pump is not easy to generate noise. If the obtained water inlet level V≥V0 during the continuous drainage process, it means that as the drainage process proceeds, air is likely to exist in the pump cavity. In this case, drainage is likely to generate noise. At this time, the control selects the continuous drainage time corresponding to the obtained water inlet level V to drain water, and adjusts the drainage sequence in time to avoid noise.
[0100] As the drainage process proceeds, the water pressure of the water entering the pump chamber decreases, which makes it easy for air to be generated in the pump chamber, and thus easily generates noise during drainage.
[0101] Based on this, as an embodiment of the present invention, when the obtained inlet water level V≥V0, the drainage pump is controlled to drain water intermittently. Specifically, intermittent drainage means controlling the drainage pump to operate according to "on-off-on-off...".
[0102] In this embodiment, due to the intermittent drainage method, when the drainage pump is turned off, sufficient water can be accumulated in the pump chamber, thereby occupying the air space, so that when the drainage pump is subsequently controlled to start drainage, no noise will be generated.
[0103] As an implementation mode of this embodiment, controlling the drainage pump to perform intermittent drainage includes: as the number of intermittent drainage times increases, controlling the drainage pump to perform continuous drainage for a shorter period of time.
[0104] In this embodiment, as the number of intermittent drainage increases, the water pressure of the water entering the pump chamber gradually decreases, and the air present in the pump chamber gradually increases, and the noise generated during drainage will also gradually increase accordingly; at this time, the drainage pump is controlled to reduce the continuous drainage time, shorten the drainage time, and thus reduce the noise generation.
[0105] As another implementation of this embodiment, during the intermittent drainage process, as the number of intermittent drainage increases, the interval between drainage intervals increases. For example, the drainage process includes 5 intermittent drainages, with the interval between the first and second drainage processes being 5 seconds, the interval between the second and third drainage processes being 10 seconds, the interval between the third and fourth drainage processes being 15 seconds, and the interval between the fourth and fifth drainage processes being 20 seconds.
[0106] In this embodiment, as the number of intermittent drainage increases, the water pressure of the water entering the pump chamber gradually decreases, the air present in the pump chamber gradually increases, and the noise generated during drainage will also gradually increase accordingly; at this time, the time of the intermittent drainage interval is controlled to increase, so as to avoid frequent opening of the drainage pump to generate more noise, and at the same time reduce the loss of the drainage pump.
[0107] The present invention also provides a washing device which is controlled by any control method described in the above technical solutions.
[0108] The washing device of the present invention is controlled by the control method of the present invention. The washing device of the present invention is not easy to generate noise during the drainage process, and the user experience is good.
[0109] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.
Claims
1. A method for controlling a drainage pump of a washing device, the drainage pump comprising a pump chamber for containing washing water, characterized in that: During the process of water inletting into the pump chamber, the water level V in the pump chamber within a preset time is obtained, and the drainage pump is controlled to drain water according to the drainage timing corresponding to the obtained water level V.
2. A method for controlling a drainage pump of a washing equipment according to claim 1, characterized in that: A first water level V0 is preset, and the drainage sequence includes a continuous drainage time length, and the continuous drainage time length corresponding to the acquired water inlet level V≥V0 is greater than the continuous drainage time length corresponding to the acquired water inlet level V<V0.
3. A method for controlling a drainage pump of a washing equipment according to claim 2, characterized in that: The continuous drainage time corresponding to the acquired inlet water level V≥V0 is greater than the shutdown time of the drainage pump; and / or the continuous drainage time corresponding to the acquired inlet water level V<V0 is less than the shutdown time of the drainage pump.
4. A method for controlling a drainage pump of a washing equipment according to claim 2 or 3, characterized in that: Preset second water level V 00 , and V 00 <V0, when the obtained inlet water level V<V0, the control compares the obtained inlet water level V with V 00 If the water level V≥V 00 , the drainage pump can be controlled to drain water. If V<V 00 , the control is to first store water in the pump chamber, and then control the drainage pump to drain water.
5. A method for controlling a drainage pump of a washing device according to claim 4, characterized in that: The water inflow volume L0 is preset, when the water level V≥V 00 When the water inflow L in the current pump chamber is obtained, the obtained water inflow L is compared with the preset water inflow L0. If L≥L0, the drainage pump is controlled to drain water.
6. A method for controlling a drainage pump of a washing device according to claim 4, characterized in that: Controlling the water to be stored in the pump chamber first includes: controlling the water storage time to be negatively correlated with the obtained water inlet level V.
7. A method for controlling a drainage pump of a washing device according to claim 2 or 3 or 5 or 6, characterized in that: When the acquired inlet water level V≥V0, the drainage pump is controlled to continuously drain water until the acquired inlet water level V is less than the preset first water level V0.
8. A method for controlling a drainage pump of a washing device according to claim 2 or 3 or 5 or 6, characterized in that: When the obtained inlet water level V≥V0, the drainage pump is controlled to drain water intermittently; Preferably, controlling the drainage pump to intermittently drain water includes: as the number of intermittent drainage times increases, controlling the drainage pump to reduce the duration of continuous drainage.
9. A method for controlling a drainage pump of a washing device according to claim 8, characterized in that: During the intermittent drainage process, as the number of intermittent drainage increases, the time interval between intermittent drainage increases.
10. A washing device, characterized in that: The control method described in any one of claims 1 to 9 is used for control.