Washing machine control method and washing machine
By setting up a water storage tank in the washing machine to store drainage of the inner drum and instead of the counterweight on the inner drum, the increased energy consumption and reduced service life of the washing machine due to eccentric vibration during the washing process is solved, and a smoother operation and longer service life are achieved, while reducing manufacturing costs.
Patent Information
- Application Number
- CN202311739050.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-18
- Publication Date
- 2025-06-20
AI Technical Summary
The existing non-porous inner cylinder washing machines have eccentric vibrations due to uneven distribution of washing materials during the washing process. They need to increase the counterweight to reduce vibrations, but this increases energy consumption and reduces service life, and at the same time, the cost of manufacturing counterweights is also higher.
By setting up a water storage tank in the washing machine, using the water storage tank to store the drainage of the inner cylinder, instead of the counterweight on the inner cylinder, the inner cylinder is controlled to dehydrate when the water storage tank is in the water storage state, and the opening and closing of the inner drain hole and the outer drain hole are adjusted to achieve the drainage of the inner cylinder always stored in the water storage tank.
It reduces vibration during dehydration of the inner cylinder, improves the smooth operation of the washing machine, reduces energy consumption during washing, reduces the force changes of components such as springs, box bodies, shock absorbers, etc., extends service life, and reduces manufacturing costs.
Smart Images
Figure CN120174591A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of household appliances, and more specifically, relates to a control method for a washing machine and a washing machine. Background Art
[0002] Currently, washing machines with a holeless inner drum are deeply loved by consumers because of their advantages such as water conservation, not easy to accumulate dirt between the inner and outer drums, and health and hygiene. However, when washing clothes, due to the uneven distribution of the washing objects, there will be an eccentric situation. To avoid vibration problems caused by eccentricity, a counterweight is usually set on the washing machine, which can well reduce the vibration of the washing machine.
[0003] The counterweight of the washing machine is generally made of concrete or cast iron, which can maintain the balance of the washing machine during operation. In addition to the cost of manufacturing the counterweight, during the washing process of the washing machine, the rotation speed of the inner drum is slow, the vibration of the washing machine is small, and the counterweight plays a small role, but it will cause higher energy consumption; moreover, the counterweight will cause a large difference in the weight of the load inside the inner drum during the washing stage and the dehydration stage, and the position of the inner drum is different, and the forces on various components such as hanging springs, the box body, and shock absorbers change greatly, resulting in a reduction in the service life of the washing machine.
[0004] In view of this, the present invention is specifically proposed. Summary of the Invention
[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a control method for a washing machine and a washing machine. Through the above settings, the additional counterweight on the inner drum can be omitted, and the water storage tank storing the drainage of the inner drum is used to replace the counterweight of the inner drum, so as to reduce the vibration during the dehydration of the inner drum, improve the smooth operation of the washing machine, reduce the energy consumption during the washing of the inner drum, reduce the force changes of components such as hanging springs, the box body, and shock absorbers, improve the service life, and reduce the manufacturing cost.
[0006] To solve the above technical problem, the basic concept of the technical solution adopted by the present invention is:
[0007] The present invention provides a control method for a washing machine. The washing machine includes an inner drum that independently holds washing water during washing and a water storage tank provided outside the inner drum. The water storage tank is controlled to store the drainage of the inner drum, and the inner drum is controlled to perform dehydration when the water storage tank is in a water storage state.
[0008] Furthermore, an inner drainage hole communicating with the water storage tank is provided on the inner drum, and an outer drainage hole communicating with the outside is provided on the water storage tank. By adjusting the opening and closing of the inner drainage hole and the outer drainage hole, the water storage tank stores the drainage of the inner drum.
[0009] Further, close the inner drain hole and the outer drain hole, control the inner drum to wash the clothes. After the washing is completed, if it is detected that the drainage of the inner drum is the last drainage before the dehydration of the inner drum, then make the water storage tank start to store the drainage of the inner drum. After the water storage tank stores water until the inner drum finishes draining, the inner drum enters the dehydration process.
[0010] Further, after it is detected that the drainage of the inner drum is the last drainage before the dehydration of the inner drum, detect the actual water level in the water storage tank. If the actual water level of the water storage tank is equal to the set water level, then close the outer drain hole and open the inner drain hole to make the water storage tank start to store the drainage of the inner drum.
[0011] Further, if the actual water level of the water storage tank is greater than the set water level, then first open the outer drain hole, drain all the water in the water storage tank, and then close the outer drain hole and open the inner drain hole to make the water storage tank start to store the drainage of the inner drum.
[0012] Further, after the inner drum enters the dehydration process, if the vibration degree of the inner drum is greater than the first vibration degree, then always close the outer drain hole and open the inner drain hole during the dehydration of the inner drum, so that the water storage tank always stores the drainage of the inner drum.
[0013] Further, if the vibration degree of the inner drum is less than or equal to the first vibration degree and greater than the second vibration intensity, then always open the inner drain hole during the dehydration of the inner drum, and open the outer drain hole at the first time and close the outer drain hole at the second time. The sum of the first time and the second time is equal to the dehydration time, and the opening degree of the outer drain hole is the first opening degree, so that the water storage tank always stores the drainage of the inner drum.
[0014] Further, if the vibration degree of the inner drum is less than or equal to the second vibration intensity and greater than the third vibration intensity, then always open the inner drain hole during the dehydration of the inner drum, and open the outer drain hole at the third time greater than the first time and close the outer drain hole at the fourth time. The sum of the third time and the fourth time is equal to the dehydration time, and the opening degree of the outer drain hole is the second opening degree greater than the first opening degree, so that the water storage tank always stores the drainage of the inner drum.
[0015] Further, the inner drain hole is arranged on the peripheral wall of the inner drum and has a certain distance from the bottom of the inner drum. When the inner drum is dehydrating, the water level in the water storage tank is lower than the position where the inner drain hole is located.
[0016] The present invention also provides a washing machine, which adopts the control method of the washing machine provided by the above technical solution.
[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:
[0018] Through the above settings, the additional counterweight on the inner drum can be omitted, and the water storage tank for storing the drained water of the inner drum can replace the counterweight of the inner drum, which can reduce the vibration during the dehydration of the inner drum, improve the stability of the washing machine operation, reduce the energy consumption during the washing of the inner drum, reduce the stress changes of components such as suspension springs, the cabinet, and shock absorbers, improve the service life, and reduce the manufacturing cost.
[0019] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings, as a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention, but do not constitute an improper limitation to the present invention. Obviously, the accompanying drawings in the following description are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:
[0021] Figure 1 is a flowchart of the control method of the washing machine provided by an embodiment of the present invention;
[0022] Figure 2 is a schematic structural diagram of the washing machine provided by an embodiment of the present invention.
[0023] Reference numerals: 1 - inner drum; 2 - water storage tank; 21 - outer drum; 3 - inner drain hole; 4 - outer drain hole.
[0024] It should be noted that these accompanying drawings and the text description are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. SPECIFIC EMBODIMENTS
[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying 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.
[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.
[0027] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] As Figure 1 shown, the present invention provides a control method for a washing machine. The washing machine includes an inner tub 1 that independently holds washing water during washing and a water storage tank 2 provided outside the inner tub 1. The water storage tank 2 is controlled to store the drainage of the inner tub 1, and the inner tub 1 is controlled to perform dehydration when the water storage tank 2 is in a water storage state.
[0029] In the embodiments of the present invention, through the above settings, the additional counterweight provided on the inner tub 1 can be omitted, and the water storage tank 2 storing the drainage of the inner tub 1 replaces the counterweight of the inner tub 1, which can reduce the vibration of the inner tub 1 during dehydration, improve the stability of the washing machine operation, reduce the energy consumption of the inner tub 1 during washing, reduce the force changes of components such as suspension springs, the cabinet, and shock absorbers, improve the service life, and reduce the manufacturing cost.
[0030] The washing machine can be a drum washing machine or a pulsator washing machine. In this application, the washing machine is taken as a drum washing machine as an example. The water storage tank 2 can be an outer tub 21 or other water storage structures. For example, the water storage structure and the bottom of the inner tub 1 jointly enclose the water storage tank 2;
[0031] As Figure 2 shown, taking the water storage tank 2 as the outer tub 21 as an example, the drum washing machine includes an outer tub 21 and an inner tub 1 rotatably provided inside the outer tub 21. The inner tub 1 can independently hold washing water during washing, and the outer tub 21 is used to collect the drainage of the inner tub 1. Among them, the drainage of the inner tub 1 includes the drainage before dehydration of the inner tub 1 and the drainage after dehydration of the inner tub 1.
[0032] Specifically, an inner drainage hole 3 is provided on the circumferential wall of the inner tub 1 at a certain distance from the bottom of the inner tub 1. When the inner tub 1 is dehydrating, the water level in the water storage tank 2 is lower than the position where the inner drainage hole 3 is located. A centrifugal valve structure that normally seals the inner drainage hole 3 is provided on the inner drainage hole 3. The process of washing clothes by the washing machine involves a washing stage for washing clothes, a washing water discharge stage for discharging washing water, a rinsing stage for rinsing clothes, a rinsing water discharge stage for discharging rinsing water, and a dehydration stage for dehydrating clothes. During the washing water discharge stage, rinsing water discharge stage, and dehydration stage, the inner tub 1 with a certain rotational speed causes the centrifugal valve structure to open the drainage hole, so that the water in the inner tub 1 is discharged into the water storage tank 2;
[0033] A drain hole 4 communicating with the outside is provided at the bottom of the water storage tank 2. A drain pipe is provided on the drain hole 4, and a drain valve or a drain pump is provided on the drain pipe. By opening the drain valve or starting the drain pump, the drain hole 4 is opened, so that the water discharged from the inner cylinder 1 into the water storage tank 2 is discharged to the outside through the drain hole 4, and the outside can be a sewer.
[0034] By adjusting the opening and closing of the inner drain hole 3 and the outer drain hole 4, the water storage tank 2 stores the drainage of the inner cylinder 1, and flexibly adjusts the closing of the inner drain hole 3 and the outer drain hole 4, so that the water storage tank 2 can store a sufficient amount of drainage of the inner cylinder 1. Thus, while reducing the vibration of the washing machine, the discharge of water in the water storage tank 2 during the dehydration process can be accelerated.
[0035] In an embodiment of the present invention, the inner drain hole 3 and the outer drain hole 4 are closed, and the inner cylinder 1 is controlled to wash the clothes. After the washing is completed, if it is detected that the drainage of the inner cylinder 1 is the last drainage before the dehydration of the inner cylinder 1, the water storage tank 2 starts to store the drainage of the inner cylinder 1. After the water storage tank 2 stores water until the inner cylinder 1 finishes draining, the inner cylinder 1 enters the dehydration process.
[0036] In an embodiment of the present invention, the washing of clothes includes a washing stage and a dehydration stage. During the washing stage, the clothes can be washed at least once. For example, if the dirt degree of the clothes is relatively large, the clothes need to be washed multiple times, and drainage is carried out after each washing. When it is detected that the drainage of the inner cylinder 1 during washing is the last drainage, the water storage tank 2 starts to store the drainage of the inner cylinder 1; after the storage tank 2 stores water until the inner cylinder finishes draining, the inner drain hole 3 can be closed first, or the inner drain hole 3 can also not be closed.
[0037] The washing of clothes only includes a rinsing stage and a dehydration stage. During the rinsing stage, the clothes can be rinsed at least once. For example, if there is a lot of foam on the clothes, the clothes need to be rinsed multiple times, and drainage is carried out after each rinsing. When it is detected that the drainage of the inner cylinder 1 during rinsing is the last drainage, the water storage tank 2 starts to store the drainage of the inner cylinder 1;
[0038] The washing of clothes includes a washing stage, a rinsing stage and a dehydration stage. During the rinsing stage, the clothes can be rinsed at least once, and drainage is carried out after each rinsing. When it is detected that the drainage of the inner cylinder 1 during rinsing is the last drainage, the water storage tank 2 starts to store the drainage of the inner cylinder 1.
[0039] By detecting that the drainage of the inner cylinder 1 is the last drainage before the dehydration of the inner cylinder 1, during washing or rinsing, the water storage tank 2 does not store water or stores as little water as possible, so as to reduce the energy consumption during the washing or rinsing of the inner cylinder 1.
[0040] When it is detected that the drainage of the inner cylinder 1 is not the last drainage before the dehydration of the inner cylinder 1, then continue to control the inner cylinder 1 to wash, rinse or drain the clothes.
[0041] Further, after detecting that the drainage of the inner tub 1 is the last drainage before dehydration of the inner tub 1, the actual water level in the water storage tank 2 is detected. If the actual water level in the water storage tank 2 is equal to the set water level, the outer drain hole 4 is closed and the inner drain hole 3 is opened, so that the water storage tank 2 starts to store the drainage of the inner tub 1.
[0042] If the actual water level in the water storage tank 2 is greater than the set water level, the outer drain hole 4 is first opened, and after the water in the water storage tank 2 is drained completely, the outer drain hole 4 is then closed and the inner drain hole 3 is opened, so that the water storage tank 2 starts to store the drainage of the inner tub 1. By detecting the actual water level in the water storage tank 2 and comparing the actual water level with the set water level, the opening and closing sequence of the inner drain hole 3 and the outer drain hole 4 is determined, preventing the water in the water storage tank 2 from being excessive, avoiding the water in the water storage tank 2 exceeding the position of the inner drain hole 3 on the inner tub 1, and avoiding the water in the water storage tank 2 being sucked back into the inner tub 1 when the inner drain hole 3 is opened during dehydration.
[0043] The set water level can be the zero water level, that is, there is no water in the water storage tank 2 during the last drainage before dehydration of the inner tub 1. When there is no water in the water storage tank 2, the outer drain hole 4 can be closed and the inner drain hole 3 can be opened, so that the drainage in the inner tub 1 is discharged to the water storage tank 2 through the inner drain hole 3 and stored in the water storage tank 2 with the outer drain hole 4 closed. When there is no water in the water storage tank 2, after closing the outer drain hole 4 and opening the inner drain hole 3, all the water in the inner tub 1 discharged to the water storage tank 2 will not exceed the position of the inner drain hole 3;
[0044] When the actual water level in the water storage tank 2 is equal to the set water level, the lower the water absorption rate of the clothes in the inner tub 1, the more water is discharged from the inner tub 1 to the outer tub 21, and the higher the water level in the water storage tank 2.
[0045] If the actual water level in the water storage tank 2 is greater than the set water level, it means that there is water in the water storage tank 2. When draining water last time from the water storage tank 2, due to the blockage of the sewer, the premature closing of the drain valve will cause a part of the water to remain in the water storage tank 2. In order to prevent the water stored in the water storage tank 2 from being excessive and exceeding the position of the inner drain hole 3, therefore, the outer drain hole 4 is first opened to drain the water in the water storage tank 2.
[0046] In the embodiment of the present invention, after the inner tub 1 enters dehydration, according to the vibration condition of the inner tub 1, the opening and closing of the inner drain hole 3 and the outer drain hole 4 are adjusted, but it is necessary to ensure that the water storage tank 2 always stores the drainage of the inner tub 1, so that the water storage tank 2 storing the drainage of the inner tub 1 is equivalent to the counterweight of the inner tub 1.
[0047] Specifically, after the inner tub 1 enters dehydration, if the vibration degree of the inner tub 1 is greater than the first vibration degree, the outer drain hole 4 is always closed and the inner drain hole 3 is opened during the dehydration of the inner tub 1, so that the water storage tank 2 always stores the drainage of the inner tub 1;
[0048] Specifically, if the vibration degree of the inner cylinder 1 is less than or equal to the first vibration degree and greater than the second vibration intensity, the inner drain hole 3 is always opened during the dehydration of the inner cylinder 1, the outer drain hole 4 is opened within the first time period, and the outer drain hole 4 is closed within the second time period. The sum of the first time period and the second time period is equal to the dehydration time, and the opening degree of the outer drain hole 4 is the first opening degree, so that the drainage of the inner cylinder 1 is always stored in the water storage tank 2.
[0049] Specifically, if the vibration degree of the inner cylinder 1 is less than or equal to the second vibration intensity and greater than the third vibration intensity, the inner drain hole 3 is always opened during the dehydration of the inner cylinder 1, the outer drain hole 4 is opened within the third time period which is greater than the first time period, and the outer drain hole 4 is closed within the fourth time period. The sum of the third time period and the fourth time period is equal to the dehydration time, and the opening degree of the outer drain hole 4 is the second opening degree which is greater than the first opening degree, so that the drainage of the inner cylinder 1 is always stored in the water storage tank 2.
[0050] The first vibration degree is greater than the second vibration degree, and the second vibration degree is greater than the third vibration degree;
[0051] When the vibration degree of the inner cylinder 1 is greater than the first vibration degree, it indicates that the vibration degree of the inner cylinder 1 is relatively large. Therefore, it is necessary to store more water in the water storage tank 2 after the inner cylinder 1 enters dehydration to reduce the vibration of the washing machine. Therefore, during the dehydration of the inner cylinder 1, the outer drain hole 4 is always closed and the inner drain hole 3 is opened, so that the last drainage of the inner cylinder 1 before dehydration and the drainage of the inner cylinder 1 after dehydration are both stored in the water storage tank 2 until the dehydration of the inner cylinder 1 ends, realizing that more water is stored in the water storage tank 2. After the inner cylinder 1 ends, the water in the water storage tank 2 is drained.
[0052] When the vibration degree of the inner cylinder 1 is less than or equal to the first vibration degree and greater than the second vibration intensity, it indicates that the vibration degree of the inner cylinder 1 is moderate. Therefore, it is necessary to store a moderate amount of water in the water storage tank 2 after the inner cylinder 1 enters dehydration so as to reduce the vibration of the washing machine. Therefore, during the dehydration of the inner cylinder 1, the inner drain hole 3 is always opened, the outer drain hole 4 is opened within the first time period, and the opening degree of the outer drain hole 4 is the first opening degree, so that the water storage tank 2 discharges a small amount of water to the outside. The outer drain hole 4 is closed within the second time period. The outer drain hole 4 can be opened in the early stage of the dehydration of the inner cylinder 1 to realize that the water storage tank 2 stores a moderate amount of water. After the dehydration ends, the remaining water in the water storage tank 2 is drained. The remaining water in the water storage tank 2 is equivalent to the additional counterweight on the inner cylinder 1. During the dehydration process, the water storage tank 2 discharges a small amount of water to the outside, enabling the water in the water storage tank 2 to be drained more quickly after the dehydration ends.
[0053] When the vibration degree of the inner cylinder 1 is less than or equal to the second vibration degree and greater than the third vibration intensity, it indicates that the vibration degree of the inner cylinder 1 is relatively small. Therefore, less water needs to be stored in the water storage tank 2 after the inner cylinder 1 enters dehydration to reduce the vibration of the washing machine. Therefore, the inner drain hole 3 is always opened during the dehydration of the inner cylinder 1, and the outer drain hole 4 is opened within the third time greater than the first time, and the opening degree of the outer drain hole 4 is the second opening degree greater than the first opening degree, so that most of the water in the water storage tank 2 is discharged to the outside, and the outer drain hole 4 is closed within the fourth time. The outer drain hole 4 can be opened in the early stage of the dehydration of the inner cylinder 1 to enable the water storage tank 2 to store less water. After the dehydration is completed, the remaining water in the water storage tank 2 is discharged. The remaining water in the water storage tank 2 is equivalent to the additional counterweight on the inner cylinder 1. During the dehydration process, most of the water in the water storage tank 2 is discharged to the outside, so that the discharge of the water in the water storage tank 2 can be further accelerated after the dehydration is completed.
[0054] When the vibration degree of the inner cylinder 1 is less than or equal to the third vibration intensity, it indicates that the vibration of the inner cylinder 1 is extremely small. Therefore, the inner drain hole 3 and the outer drain hole 4 can be always opened during the dehydration process of the inner cylinder 1, so that the water storage tank 2 is always in a drainage state during the dehydration process.
[0055] The specific steps of the control method of the washing machine of the present invention are as follows:
[0056] S1. The washing machine executes the washing program, closes the inner drain hole 3 and the outer drain hole 4, and controls the inner cylinder 1 to wash the clothes; then execute step S2;
[0057] S2. Determine whether the drainage of the inner cylinder 1 is the last drainage before the inner cylinder dehydration. If so, execute step S3; if not, execute S1;
[0058] S3. Determine whether the actual water level of the water storage tank 2 is equal to the set water level. If so, execute step S4; if not, execute step S5;
[0059] S4. Close the outer drain hole 4, open the inner drain hole 3, and execute step S6;
[0060] S5. First open the outer drain hole 4, drain all the water in the water storage tank 2, then close the inner drain hole 3, open the inner drain hole 3, and execute step S6;
[0061] S6. Let the water storage tank 2 start to store the drainage of the inner cylinder 1, and execute step S7;
[0062] S7. After the water storage tank 2 stores water until the inner cylinder 1 finishes draining, the inner cylinder 1 enters dehydration, and execute step S8;
[0063] S8. Determine whether the vibration intensity of the inner cylinder 1 is greater than the first vibration intensity. If so, execute step S11; if not, execute step S9;
[0064] S9. Whether the vibration intensity of the inner cylinder 1 is greater than the second vibration intensity. If so, execute step S12; if not, execute step S10;
[0065] S10. Whether the vibration intensity of the inner cylinder 1 is greater than the third vibration intensity. If so, execute step S14; if not, execute step S13;
[0066] S11. Always close the outer drain hole 4 and open the inner drain hole 3;
[0067] S12. Always open the inner drain hole 3, open the outer drain hole 4 within the first time, and the opening degree of the outer drain hole 4 is the first opening degree;
[0068] S13. Always open the inner drain hole 3, open the outer drain hole 4 within the third time which is greater than the first time, and the opening degree of the outer drain hole 4 is the second opening degree which is greater than the first opening degree;
[0069] S14. Always open the inner drain hole 3 and the outer drain hole 4.
[0070] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some changes or modifications to the above-mentioned technical content by using the disclosed technical content to make equivalent embodiments of equivalent changes. The implementation schemes in the above embodiments can also be further combined or replaced. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.
Claims
1. A control method for a washing machine, the washing machine comprising an inner tub for independently containing washing water during washing and a water storage tank disposed outside the inner tub, characterized in that, Control the water storage tank to store the drainage of the inner tub, and control the inner tub to perform dehydration when the water storage tank is in the water storage state.
2. The control method according to claim 1, characterized in that, The inner tub is provided with an inner drainage hole communicating with the water storage tank, and the water storage tank is provided with an outer drainage hole communicating with the outside. By adjusting the opening and closing of the inner drainage hole and the outer drainage hole, the water storage tank stores the drainage of the inner tub.
3. The control method according to claim 2, characterized in that, Close the inner drainage hole and the outer drainage hole, control the inner tub to wash the clothes. After the washing is completed, if it is detected that the drainage of the inner tub is the last drainage before the dehydration of the inner tub, then make the water storage tank start to store the drainage of the inner tub. After the water storage tank stores water until the inner tub finishes draining, the inner tub enters dehydration.
4. The control method according to claim 3, characterized in that, After detecting that the drainage of the inner tub is the last drainage before the dehydration of the inner tub, detect the actual water level in the water storage tank. If the actual water level of the water storage tank is equal to the set water level, then close the outer drainage hole and open the inner drainage hole to make the water storage tank start to store the drainage of the inner tub.
5. The control method according to claim 4, characterized in that, If the actual water level of the water storage tank is greater than the set water level, then first open the outer drainage hole, drain all the water in the water storage tank, and then close the outer drainage hole and open the inner drainage hole to make the water storage tank start to store the drainage of the inner tub.
6. The control method according to claim 3, characterized in that, After the inner tub enters dehydration, if the vibration degree of the inner tub is greater than the first vibration degree, then always close the outer drainage hole and open the inner drainage hole during the dehydration of the inner tub, so that the water storage tank always stores the drainage of the inner tub.
7. The control method according to claim 6, characterized in that, If the vibration degree of the inner tub is less than or equal to the first vibration degree and greater than the second vibration intensity, then always open the inner drainage hole during the dehydration of the inner tub, and open the outer drainage hole at the first time and close the outer drainage hole at the second time. The sum of the first time and the second time is equal to the dehydration time, and the opening degree of the outer drainage hole is the first opening degree, so that the water storage tank always stores the drainage of the inner tub.
8. The control method according to claim 7, characterized in that, If the vibration degree of the inner tub is less than or equal to the second vibration intensity and greater than the third vibration intensity, then always open the inner drainage hole during the dehydration of the inner tub, and open the outer drainage hole at the third time greater than the first time and close the outer drainage hole at the fourth time. The sum of the third time and the fourth time is equal to the dehydration time, and the opening degree of the outer drainage hole is the second opening degree greater than the first opening degree, so that the water storage tank always stores the drainage of the inner tub.
9. The control method according to any one of claims 1 - 8, characterized in that, The inner drainage hole is provided on the peripheral wall of the inner tub and has a certain distance from the bottom of the inner tub. When the inner tub is dehydrating, the water level in the water storage tank is lower than the position where the inner drainage hole is located.
10. A washing machine, characterized in that, Adopt the control method of the washing machine described in any one of claims 1-9.