Washing machine dehydration control method, device, washing machine and storage medium

Abstract

The present invention provides a washing machine dehydration control method, device, washing machine, and storage medium. The method comprises: controlling the motor speed to increase when the washing machine completes the washing phase; detecting whether the motor power meets the starting conditions for executing the dehydration operation when the speed rises to a preset detection speed; if not, controlling the motor speed to decrease so that the motor power meets the starting conditions, and executing a first dehydration operation at the adjusted motor speed; after completing the first dehydration operation, controlling the motor speed to decrease to a spray speed, and executing a spray rinsing operation at the spray speed; after completing the spray rinsing operation, controlling the motor speed to increase to a dehydration speed, and executing a second dehydration operation at the dehydration speed. The present invention reduces the rinsing process during laundry, greatly reduces the laundry operation time, and is more water- and electricity-saving. It not only ensures stable operation of the motor, but also ensures that the inner drum of the washing machine reaches a reasonable dehydration speed, ensuring the washing and rinsing effect of the clothes.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a washing machine dehydration control method and device, a washing machine and a storage medium. Background Art

[0002] As people's living standards improve, users are no longer satisfied with basic cleaning and convenience for washing machines, and are increasingly concerned about the water and electricity consumption of the washing machines themselves.

[0003] Current washing machines go through multiple stages of washing, rinsing, and spinning, each of which takes a significant amount of time and consumes significant amounts of water and electricity. Furthermore, during the washing process, detergent dissolves and penetrates into clothing fibers, making it difficult to remove residual detergent from clean clothes. This is especially true for drum washing machines, where the low rinse water level makes it even more difficult to rinse thoroughly. This residual detergent not only easily damages clothing but can also easily cause bacterial infections in sensitive individuals.

[0004] Moreover, during the washing process, due to factors such as heavy and thick clothes, strong water absorption, and unstable flatness, the motor power may be too high during the washing process, causing damage to the motor, controller and other components, and even triggering a washing machine malfunction, affecting the user's washing experience. Summary of the Invention

[0005] The present invention proposes a washing machine dehydration control method, device, washing machine and storage medium to solve the problems in the prior art that the washing process of the washing machine is time-consuming, consumes a lot of water and energy, and when washing heavy and thick clothes, the washing effect is poor and it is easy to cause damage to the motor and other components due to excessive motor power.

[0006] In one aspect of the present invention, a method for controlling dehydration of a washing machine is provided, the method comprising:

[0007] When the washing machine completes the washing phase, the motor speed is controlled to increase the speed;

[0008] When the motor speed rises to the preset detection speed, the corresponding motor power is detected to see if it meets the starting conditions for the dehydration operation;

[0009] If the motor power does not meet the starting condition for executing the dehydration operation, the motor speed is controlled to be reduced so that the corresponding motor power meets the starting condition for executing the dehydration operation, the adjusted motor speed is used as the first target speed, and the first dehydration operation is performed at the first target speed;

[0010] After the first dehydration operation is completed, the motor speed is controlled to decrease to the spray speed, and the spray rinsing operation is performed at the spray speed;

[0011] After the spray rinsing operation is completed, the motor speed is controlled to increase to a preset dehydration speed, and a second dehydration operation is performed at the dehydration speed.

[0012] Furthermore, the method further comprises:

[0013] If the motor power meets the starting condition for executing the dehydration operation, the motor speed is controlled to increase the dehydration speed, and the first dehydration operation is executed at the dehydration speed;

[0014] After the first dehydration operation is completed, the motor speed is controlled to decrease to a preset spray speed, and a spray rinsing operation is performed at the spray speed;

[0015] After the spray rinsing operation is completed, the motor speed is controlled to increase to the dehydration speed, and the second dehydration operation is performed at the dehydration speed.

[0016] Furthermore, when the motor speed rises to a preset detection speed, detecting whether the corresponding motor power meets the starting condition for executing the dehydration operation includes:

[0017] Determine whether the motor power corresponding to the preset detection speed is less than or equal to the preset safety power threshold;

[0018] When the motor power is less than or equal to a preset safety power threshold, it is determined that the motor power meets the starting condition for executing the dehydration operation.

[0019] Furthermore, when the motor power is less than or equal to a preset safety power threshold, the method further includes:

[0020] Determine whether the motor power corresponding to the preset detection speed is greater than a preset first power threshold, where the first power threshold is less than the safety power threshold;

[0021] When the motor power is greater than a preset first power threshold, the motor speed is maintained at a preset detection speed for a first preset time, the motor speed is controlled to increase according to a preset speed increase unit, and the motor power corresponding to the increased motor speed is detected to be less than or equal to a preset safety power threshold;

[0022] If the motor power corresponding to the increased motor speed is greater than a preset safety power threshold, the motor speed is controlled to be reduced so that the corresponding motor power meets the starting condition for executing the dehydration operation, the adjusted motor speed is used as the second target speed, and the first dehydration operation is executed at the second target speed;

[0023] After the first dehydration operation is completed, the motor speed is controlled to decrease to the spray speed, and the spray rinsing operation is performed at the spray speed;

[0024] After the spray and rinse operation is completed, the motor speed is controlled to increase to the dehydration speed, and the second dehydration operation is performed at the dehydration speed, wherein the spray speed is less than the second target speed and less than the dehydration speed.

[0025] Furthermore, the method further comprises:

[0026] When the motor power is less than or equal to a preset first power threshold, the step of controlling the motor speed to increase to a preset spin speed and performing a first spin operation at the spin speed is executed.

[0027] Furthermore, the method further comprises:

[0028] If the motor power corresponding to the motor speed after speed increase is less than or equal to the preset safety power threshold, the motor speed is controlled to increase again according to the preset speed increase unit until the motor power corresponding to the motor speed after speed increase is greater than the preset safety power threshold or reaches the dehydration speed.

[0029] Furthermore, controlling the motor speed to reduce the speed so that the corresponding motor power meets the starting condition for performing the dehydration operation includes:

[0030] The motor speed is controlled to be reduced according to the preset speed reduction unit until the motor power corresponding to the reduced motor speed is less than or equal to the preset safety power threshold.

[0031] Furthermore, performing the spray rinsing operation at the spray speed includes:

[0032] During the dehydration process at the spray speed, the spray head arranged in the washing machine is controlled to spray water droplets onto the clothes in the washing machine through the spray path to achieve spray rinsing of the clothes, and the drainage component of the washing machine is controlled to open to discharge the residual water of the spray rinsing while performing the spray rinsing operation.

[0033] Furthermore, the execution time of the first dehydration operation or the second dehydration operation is 0.5-5 minutes, and the execution time of the spray rinsing operation is 0.5-12 minutes.

[0034] Furthermore, the method further comprises:

[0035] In the process of controlling the motor speed to increase to the preset dehydration speed, when the motor speed rises to the preset detection speed, the corresponding motor power is detected to see whether it meets the starting conditions for executing the dehydration operation;

[0036] If the motor power does not meet the starting conditions for executing the dehydration operation, the motor speed is controlled to be reduced so that the corresponding motor power meets the starting conditions for executing the dehydration operation, the adjusted motor speed is used as the third target speed, and the second dehydration operation is performed at the third target speed;

[0037] If the motor power meets the starting condition for executing the dehydration operation, the motor speed is controlled to increase the dehydration speed, and the second dehydration operation is executed at the dehydration speed.

[0038] According to a second aspect of the present invention, a dehydration control device for a washing machine is provided, the device comprising a functional module for implementing the above method.

[0039] According to a third aspect of the present invention, a washing machine is provided, comprising a controller, wherein the controller comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the computer program.

[0040] Furthermore, the washing machine further comprises: a spray head connected to the water inlet pipe of the washing machine, for spraying water droplets onto the clothes in the washing machine.

[0041] According to a fourth aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method described above are implemented.

[0042] The embodiments of the present invention provide a dehydration control method, device, washing machine, and storage medium for washing machines, which reduce the rinsing process during washing. After the washing machine completes the washing stage, the first dehydration operation, the spray rinsing operation, and the second dehydration operation are sequentially performed to rinse the clothes, greatly reducing the washing operation time while also saving water and electricity. At the same time, the present invention provides a dehydration logic control method for when the motor power is too high. Before executing the first dehydration operation, the motor power of the washing machine at a preset detection speed is detected to determine whether it meets the safety start conditions for executing the first dehydration operation. If the safety start conditions are not met, the motor speed is controlled to slow down so that the corresponding motor power meets the start conditions for executing the dehydration operation. The adjusted motor speed is used as the first target speed, and the first dehydration operation is performed at the first target speed. This not only ensures the stable operation of the motor and avoids continuous high-power operation, but also ensures that the inner drum of the washing machine reaches a reasonable dehydration speed, ensuring the washing and rinsing effect of the clothes.

[0043] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. The drawings are only used to illustrate preferred implementation methods and are not considered to be limitations of the present invention.

[0045] Figure 1 This is a schematic structural diagram of a washing machine according to an embodiment of the present invention;

[0046] Figure 2 is a schematic cross-sectional view of a washing machine according to an embodiment of the present invention;

[0047] Figure 3 This is a flow chart of a washing machine dehydration control method according to an embodiment of the present invention;

[0048] Figure 4 This is a specific flow chart of a washing machine dehydration control method according to an embodiment of the present invention;

[0049] Figure 5 This is a specific flow chart of another washing machine dehydration control method according to an embodiment of the present invention;

[0050] Figure 6 4 is a comparison curve diagram of motor power and actual speed in an embodiment of the present invention. DETAILED DESCRIPTION

[0051] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0052] like Figure 1-Figure 2 As shown, an embodiment of the present invention provides a washing machine, including a washing machine body, which includes a washing machine housing 5, a detergent box 1, a display screen 2, a door 3, a drainage component 4, a spray head 6, and an inner drum 8. The spray head 6 is connected to the washing machine's water inlet pipe and is used to spray water droplets onto the clothes in the inner drum 8. The spray head 6 can cover all parts of the inner drum to ensure a spray rinsing effect.

[0053] like Figure 2 As shown, during spray rinsing, water is sprayed from the spray head 6, and the spray water droplets 7 fall on the clothes in the inner drum 8 through the spray path, spraying and rinsing the clothes. The present invention reduces the traditional rinsing process and uses the spray rinsing method to rinse the clothes through the spray head 6, which not only greatly shortens the washing time, but also saves water and electricity consumption during the washing process.

[0054] Furthermore, the washing machine also includes a controller for controlling the washing machine body, the controller including a memory, a processor and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the steps of the washing machine dehydration control method described in the following embodiment are implemented, such as: when the washing machine completes the washing stage, controlling the motor speed to increase the speed; when the motor speed rises to a preset detection speed, detecting whether the corresponding motor power meets the starting conditions for executing the dehydration operation; if the motor power does not meet the starting conditions for executing the dehydration operation, controlling the motor speed to decrease the speed so that the corresponding motor power meets the starting conditions for executing the dehydration operation, using the adjusted motor speed as the first target speed, and executing the first dehydration operation at the first target speed; after completing the first dehydration operation, controlling the motor speed to decrease the speed to the spray speed, and executing the spray rinsing operation at the spray speed; after completing the spray rinsing operation, controlling the motor speed to increase the speed to the preset dehydration speed, and executing the second dehydration operation at the dehydration speed. Furthermore, if the motor power meets the starting conditions for executing the dehydration operation, the motor speed is controlled to increase to a preset dehydration speed, and the first dehydration operation is performed at the dehydration speed; after completing the first dehydration operation, the motor speed is controlled to decrease to a preset spray speed, and the spray rinsing operation is performed at the spray speed; after completing the spray rinsing operation, the motor speed is controlled to increase to the dehydration speed, and the second dehydration operation is performed at the dehydration speed.

[0055] Figure 3 A flow chart of a washing machine dehydration control method proposed in an embodiment of the present invention is shown.

[0056] like Figure 3 As shown, the washing machine dehydration control method proposed in the embodiment of the present invention includes the following steps:

[0057] S11. When the washing machine completes the washing phase, the motor speed is controlled to increase.

[0058] S12. When the motor speed rises to a preset detection speed, the corresponding motor power is detected to see whether it meets the starting conditions for executing the dehydration operation.

[0059] Among them, after the washing machine completes the washing stage, it enters the dehydration stage. In the dehydration stage, the motor speed is first controlled to increase the speed. As the speed of the washing machine inner drum continues to increase, the motor power will also continue to increase, making it difficult to accurately detect the actual power of the motor. Therefore, a detection speed for motor power detection is pre-set. During the speed-up process, after the motor reaches the preset detection speed, the speed is controlled to remain stable for 5 seconds to facilitate the detection of the corresponding motor power P and compare it with the preset safety power value P.

[0060] Specifically, in step S12, when the motor speed rises to the preset detection speed, the corresponding motor power is detected to see whether it meets the starting conditions for executing the dehydration operation, which specifically includes the following implementation steps: judging whether the motor power corresponding to the preset detection speed is less than or equal to the preset safety power threshold; when the motor power is less than or equal to the preset safety power threshold, determining that the motor power meets the starting conditions for executing the dehydration operation; when the motor power is greater than the preset safety power threshold, determining that the motor power does not meet the starting conditions for executing the dehydration operation.

[0061] S13. If the motor power does not meet the starting conditions for executing the dehydration operation, the motor speed is controlled to slow down so that the corresponding motor power meets the starting conditions for executing the dehydration operation, the adjusted motor speed is used as the first target speed, and the first dehydration operation is performed at the first target speed.

[0062] In an embodiment of the present invention, when the motor power corresponding to the detected speed is greater than a preset first power threshold, that is, when P>P, it is determined that the motor power does not meet the starting conditions for executing the dehydration operation. At this time, the motor power has reached a safe power value and cannot continue to increase in speed, so the motor needs to be decelerated. Controlling the motor speed to reduce the speed so that the corresponding motor power meets the starting conditions for executing the dehydration operation specifically includes: controlling the motor speed to reduce the speed according to a preset deceleration unit until the motor power corresponding to the reduced motor speed is less than or equal to the preset safe power threshold, and using the motor speed at which the corresponding motor power meets the starting conditions for executing the dehydration operation as the first target speed.

[0063] S14. After completing the first dehydration operation, controlling the motor speed to decrease to the spray speed, and performing the spray rinsing operation at the spray speed;

[0064] S15: After the spray and rinse operation is completed, the motor speed is controlled to increase to a preset spin speed, and a second spin operation is performed at the spin speed, wherein the spray speed < the first target speed < the spin speed.

[0065] Furthermore, in the process of controlling the motor speed to increase to the preset dehydration speed in step S15, when the motor speed rises to the preset detection speed, it is detected whether the corresponding motor power meets the starting conditions for executing the dehydration operation; if the motor power does not meet the starting conditions for executing the dehydration operation, the motor speed is controlled to slow down so that the corresponding motor power meets the starting conditions for executing the dehydration operation, the adjusted motor speed is used as the third target speed, and the second dehydration operation is executed at the third target speed; if the motor power meets the starting conditions for executing the dehydration operation, the motor speed is controlled to increase the dehydration speed, and the second dehydration operation is executed at the dehydration speed.

[0066] The washing machine dehydration control method proposed in an embodiment of the present invention reduces the rinsing process during washing. After the washing machine completes the washing stage, the first dehydration operation, the spray rinsing operation, and the second dehydration operation are sequentially executed to rinse the clothes, greatly reducing the washing operation time while also saving water and electricity. At the same time, the present invention provides a dehydration logic control method for when the motor power is too high. Before executing the first dehydration operation, the motor power of the washing machine at a preset detection speed is detected to determine whether it meets the safety start conditions for executing the first dehydration operation. If the safety start conditions are not met, the motor speed is controlled to reduce so that the corresponding motor power meets the start conditions for executing the dehydration operation. The adjusted motor speed is used as the first target speed, and the first dehydration operation is executed at the first target speed. This not only ensures the stable operation of the motor and avoids continuous high-power operation, but also ensures that the inner drum of the washing machine reaches a reasonable dehydration speed, ensuring the washing and rinsing effect of the clothes.

[0067] In one embodiment of the present invention, the method further includes the following steps which are not shown in the drawings:

[0068] S16. If the motor power meets the starting condition for executing the dehydration operation, the motor speed is controlled to increase to a preset dehydration speed, and the first dehydration operation is executed at the dehydration speed.

[0069] Specifically, when the motor power corresponding to the detected speed is less than or equal to the preset first power threshold, that is, when P≤P, it is determined that the motor power meets the starting conditions for executing the dehydration operation. At this time, the real-time power has not reached the preset safety power value, so the normal dehydration process can continue, that is, first control the motor speed to increase to the preset dehydration speed, perform the first dehydration operation at the dehydration speed, and then perform subsequent spray rinsing operations and the second dehydration operation.

[0070] S17. After completing the first dehydration operation, controlling the motor speed to slow down to a preset spray speed, and performing the spray rinsing operation at the spray speed.

[0071] The spray rinsing operation in the embodiment of the present invention specifically includes the following steps: controlling the spray head provided in the washing machine to spray water droplets onto the clothes in the washing machine through the spray path during dehydration at a spray speed to achieve spray rinsing of the clothes, and controlling the drainage component of the washing machine to open so as to discharge the residual water from the spray rinsing while performing the spray rinsing operation.

[0072] S18. After the spray and rinse operations are completed, the motor speed is controlled to increase to the spin speed, and a second spin operation is performed at the spin speed, wherein the spray speed is less than the spin speed.

[0073] The execution time of the first dehydration operation or the second dehydration operation is 0.5-5 minutes, preferably 0.5-3 minutes, and the execution time of the spray rinsing operation is 0.5-12 minutes, preferably 3-8 minutes.

[0074] After the washing machine completes the wash phase, the present invention enters the dehydration phase, eliminating the rinsing process during washing. Instead, the laundry is rinsed and cleaned by spraying and rinsing. Specifically, the laundry is rinsed and cleaned by spraying during the dehydration phase, simultaneously rinsing and dehydrating. This, combined with a variable-pace rinsing scheme, not only rinses the laundry, but also saves time and water and electricity by eliminating the multiple rinses required in the original program. The dehydration phase begins after the main wash cycle is drained. The machine first dehydrates at a high speed for a period of time to remove any residual water in the laundry, then reduces the speed to a low speed while dehydrating and spraying the laundry. After the main wash cycle is drained, the machine first removes any residual water from the laundry at a high speed, then dehydrates and rinses the laundry at a low speed while spraying. Simultaneously, the drain valve is opened, allowing the residual water removed by the spray rinsing to be directly discharged from the drum, preventing secondary contamination. This eliminates the multiple rinses required in the original program, significantly reduces laundry run time, and further saves water and electricity.

[0075] A dehydration control method for a washing machine proposed in an embodiment of the present invention reduces the rinsing process during washing. After the washing machine completes the washing stage, the first dehydration operation, the spray rinsing operation, and the second dehydration operation are sequentially executed to rinse the clothes, greatly reducing the washing operation time while also saving water and electricity. At the same time, the present invention provides a dehydration logic control method for when the motor power is too high. Before executing the first dehydration operation, the motor power of the washing machine at a preset detection speed is detected to determine whether it meets the safety start conditions for executing the first dehydration operation. When the safety start conditions are met, dehydration is performed at a preset dehydration speed. This method not only ensures stable operation of the motor and avoids continuous high-power operation, but also ensures that the inner drum of the washing machine reaches a reasonable dehydration speed, ensuring the washing and rinsing effect of the clothes.

[0076] like Figure 4 As shown, after the motor reaches the detection speed n rpm / s and remains stable for 5s, the motor power P is detected and compared with the preset safety power value Pset. When P≤Pset, the real-time power has not reached the preset safety power value, so the normal dehydration process can continue; and when P>Pset, first decelerate by 100rpm at an acceleration of a rpm / s, and then perform power detection after stabilizing the decelerated (n100)rpm for 5s, and synchronously compare it with the preset safety value Pset. If it still exceeds Pset, then decelerate by another 100rpm and detect again until the motor power P≤Pset, that is, at this time the motor power will not trigger the danger of excessive power, and then perform the first dehydration operation in the spraying and rinsing process. As shown Figure 4As shown, the spray rinsing process goes through three processes: the first dehydration operation, the spray rinsing operation, and the second dehydration operation, which includes two speed-up processes. Therefore, when the motor power P≤P is set, the speed-up stage must be judged first, that is, whether the spray rinsing operation has been completed, and based on the judgment result, it is determined whether it is necessary to perform speed-down spraying. When the dehydration process is in the first dehydration, the motor power is lower than the preset safety value at this time, and the first target speed after the current speed reduction is continued for t1 time, that is, the first dehydration is performed at a safety speed lower than the final dehydration speed, and then the speed is reduced to V1 speed, that is, the spray speed and continued for t3 time, and spray rinsing is performed. After completion, the speed is increased to V2 speed and continued for t4 time to complete the second dehydration, until the dehydration process is completed. When the dehydration process is not in the first speed-up stage, the first target speed after the current speed reduction is continued for t2 time to complete the second dehydration process until the dehydration is completed.

[0077] Another embodiment of the present invention incorporates a multi-level power determination feature and two preset power values: a first power threshold P1 and a second power threshold P2, also known as a safety power threshold. This embodiment further refines the preset power values, implementing different phases for different power levels. The detected power is divided into three levels: high, medium, and low. Low power allows the normal dehydration process to continue; medium power stabilizes the motor speed before increasing it slightly; and high power immediately decelerates. This ensures that the dangers and anomalies of excessive power are avoided, while an excessive reduction in speed can prevent the dehydration spraying effect.

[0078] In a specific embodiment, when the motor power is less than or equal to a preset safety power threshold, i.e., a second power threshold P2, it is determined whether the motor power corresponding to the preset detection speed is greater than a preset first power threshold, wherein the first power threshold is less than the safety power threshold. When the motor power is greater than the preset first power threshold, the motor speed is maintained at the preset detection speed for a first preset period of time, and then the motor speed is controlled to increase according to a preset speed increase unit, and it is detected whether the motor power corresponding to the increased motor speed is less than or equal to the preset safety power threshold. If the motor power corresponding to the increased motor speed is greater than the preset safety power threshold, the motor speed is controlled to decrease so that the corresponding motor power meets the start condition for executing the dehydration operation, the adjusted motor speed is used as the second target speed, and the first dehydration operation is executed at the second target speed, wherein the controlling the motor speed to decrease so that the corresponding motor power meets the start condition for executing the dehydration operation specifically includes: controlling the motor speed to decrease according to the preset speed decrease unit until the motor power corresponding to the decreased motor speed is less than or equal to the preset safety power threshold. After the first spin cycle is completed, the motor speed is controlled to decrease to the spray speed, and a spray-rinse cycle is performed at the spray speed. After the spray-rinse cycle is completed, the motor speed is controlled to increase to the spin cycle speed, and a second spin cycle is performed at the spin cycle speed. The spray speed < the second target speed < the spin cycle speed.

[0079] Furthermore, in the process of controlling the motor speed to increase to the preset dehydration speed, when the motor speed rises to the preset detection speed, it is detected whether the corresponding motor power meets the starting conditions for executing the dehydration operation; if the motor power does not meet the starting conditions for executing the dehydration operation, the motor speed is controlled to slow down so that the corresponding motor power meets the starting conditions for executing the dehydration operation, the adjusted motor speed is used as the third target speed, and the second dehydration operation is executed at the third target speed; if the motor power meets the starting conditions for executing the dehydration operation, the motor speed is controlled to increase the dehydration speed, and the second dehydration operation is executed at the dehydration speed.

[0080] Furthermore, if the motor power corresponding to the motor speed after speed increase is less than or equal to the preset safety power threshold, the motor speed is controlled to increase again according to the preset speed increase unit until the motor power corresponding to the motor speed after speed increase is greater than the preset safety power threshold or reaches the dehydration speed.

[0081] Specifically, when the motor power corresponding to the motor speed after speed increase is less than or equal to the preset safe power threshold, i.e., the second power threshold P2, before controlling the motor speed to increase again according to the preset speed increase unit, first determine whether the motor speed after speed increase at this time reaches the preset allowable maximum speed N max. If not, control the motor speed to increase again according to the preset speed increase unit until the motor power corresponding to the motor speed after speed increase is greater than the preset safe power threshold or reaches the dehydration speed.

[0082] As Figure 5 shown, when P ≤ P1, the motor power is within the allowable range at this time, so the normal dehydration process can continue. When P1 < P ≤ P2, the motor power is in the middle gear at this time. First, determine whether the speed at this time reaches the preset allowable maximum speed N max. If so, first determine the number of times of speed increase dehydration, that is, whether the spray rinsing operation has been completed. Then, based on the judgment result, decide whether to perform deceleration spraying. If the dehydration process is the first dehydration, perform the first dehydration at the maximum speed Nmax, and then perform the deceleration spraying process; if not, first run stably at this speed for 20 s. At this time, the motor power is greatly reduced, and then accelerate at a1 rpm / s for 100 rpm, then stabilize at the increased speed of (n + 100) rpm for 5 s and perform power detection, and then return to compare with P2 again until the condition is met and enter the spray rinse and spin stage. When P > P2, since the motor power is too high at this time, deceleration treatment is required until the condition is met and enter the spray rinse and spin stage. During spray rinse and spin, the drain valve is opened, and clear water is sprayed from the inlet valve through the spray head 6 onto the clothes at the bottom of the inner tub. The sprayed water dissolves and dilutes the detergent remaining on the clothes, and then is discharged from the drain valve of the washing machine to perform the rinse and spin process. During the dehydration process, the clothes are rinsed and spun by spraying. While rinsing, spin the clothes. First, spin the clothes at a high speed for a period of time to remove the residual water in the clothes, and then reduce the speed to spin and spray-rinse the clothes at a low speed. After the main wash drainage, first quickly remove the residual water in the clothes at a high speed, and then spin and spray-rinse the clothes at a low speed while draining. At the same time, the drain valve is opened, and the residual water of the spray rinse and spin is directly discharged outside the tub to prevent secondary pollution. This removes the multiple rinses in the original program, greatly reduces the laundry running time, and also saves water and electricity.

[0083] In the above embodiments, V1, V2, Pset, P1, P2, a1, a2, t1, t2, t3, and t4 are all set values. Among them, V1 < V2, P1 < Pset = P2, and a1 < a2. The rotational speed V1 should be within 100 - 1000 rpm, preferably 300 - 800 rpm; the rotational speed V2 should be within 600 - 1600 rpm, preferably 800 - 1200 rpm; the time t1 / t2 / t4 should be within 0 - 5 min, preferably 0.5 - 3 min, and the time t3 should be within 0.5 - 12 min, preferably 3 - 8 min; the power Pset / P1 / P2 should be within 300 - 700 W, preferably 360 - 600 W; the acceleration a1 / a2 should be within 5 - 40 rpm / s, preferably 5 - 30 rpm / s.

[0084] Figure 6 This is a graph of the motor power and the actual rotational speed during the spray dehydration process of the present invention. As Figure 6 shown, as the actual rotational speed of the motor continuously increases, the motor power will also continuously increase. When the motor reaches a certain rotational speed and remains stable, the motor power will first sharply decrease and then remain stable. Therefore, from the curve of the power changing with the rotational speed during the dehydration process, it can be seen that during the continuous increase of the rotational speed, the motor power will also continuously increase and easily reach the safety power, triggering a malfunction. Therefore, it is necessary to monitor the motor power in real time during dehydration and take corresponding measures for the situation of excessive power to ensure the stable operation of the program.

[0085] During the laundry process, due to factors such as heavy and thick clothing, too strong water absorption, and unstable leveling, it may cause the motor power to be too high when the clothes are dehydrated at high speed, which will cause serious damage to components such as the motor and the controller. Therefore, the present invention provides a dehydration logic control method for the situation of excessive motor power. This method detects the motor power during the high-speed dehydration of the washing machine and compares it with the preset power value and the safety power value. According to the comparison of the detected power values, different speed-up and speed-down control logics are executed. This can not only ensure the stable operation of the motor and prevent it from continuously operating at a high power state, but also ensure that the inner drum reaches a reasonable dehydration rotational speed, guaranteeing the washing and rinsing effects of the clothes.

[0086] For the method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the embodiments of the present invention are not limited by the described action sequences, because according to the embodiments of the present invention, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily essential for the embodiments of the present invention.

[0087] An embodiment of the present invention further provides a washing machine dehydration control device, which includes a functional module for implementing the washing machine dehydration control method described in the above embodiment.

[0088] Specifically, the washing machine dehydration control device includes a control module and a detection module, wherein:

[0089] A control module is used to control the motor speed to increase when the washing machine completes the washing phase;

[0090] The detection module is used to detect whether the corresponding motor power meets the starting conditions for executing the dehydration operation when the motor speed rises to a preset detection speed;

[0091] The control module is also used to control the motor speed to slow down when the motor power does not meet the starting conditions for executing the dehydration operation so that the corresponding motor power meets the starting conditions for executing the dehydration operation, use the adjusted motor speed as the first target speed, and execute the first dehydration operation at the first target speed; after completing the first dehydration operation, control the motor speed to slow down to the spray speed, and execute the spray rinsing operation at the spray speed; after completing the spray rinsing operation, control the motor speed to speed up to the preset dehydration speed, and execute the second dehydration operation at the dehydration speed.

[0092] Furthermore, the detection module is also used to detect whether the corresponding motor power meets the starting conditions for executing the dehydration operation when the motor speed rises to the preset detection speed during the process of controlling the motor speed to increase to the preset dehydration speed; accordingly, the control module is also used to control the motor speed to slow down when the motor power does not meet the starting conditions for executing the dehydration operation so that the corresponding motor power meets the starting conditions for executing the dehydration operation, use the adjusted motor speed as the third target speed, and execute the second dehydration operation at the third target speed; when the motor power meets the starting conditions for executing the dehydration operation, control the motor speed to increase the dehydration speed, and execute the second dehydration operation at the dehydration speed.

[0093] Furthermore, the control module is also used to control the motor speed to increase to a preset dehydration speed when the motor power meets the starting conditions for performing a dehydration operation, and perform the first dehydration operation at the dehydration speed; after completing the first dehydration operation, control the motor speed to decrease to a preset spray speed, and perform the spray rinsing operation at the spray speed; after completing the spray rinsing operation, control the motor speed to increase to the dehydration speed, and perform the second dehydration operation at the dehydration speed, and the spray speed is less than the dehydration speed.

[0094] It should be noted that for other corresponding descriptions of the functional modules involved in the washing machine dehydration control device provided in the embodiment of the present invention, please refer to Figure 1The corresponding description of the method shown will not be repeated here.

[0095] In addition, an embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the above method are implemented.

[0096] In this embodiment, if the washing machine dehydration control method is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the process in the above embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processing device, it can implement the steps of the above-mentioned various method embodiments. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device that can carry the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer storage device, read-only memory device (ROM, Read-Only Memory), random access memory device (RAM, Random Access Memory), electrical carrier signal, telecommunication signal and software distribution medium, etc.

[0097] The embodiments of the present invention provide a dehydration control method, device, washing machine, and storage medium for a washing machine, which reduces the rinsing process during washing. After the washing machine completes the washing stage, the first dehydration operation, the spray rinsing operation, and the second dehydration operation are sequentially performed to rinse the clothes, greatly reducing the washing operation time while also saving water and electricity. Furthermore, the present invention provides a dehydration logic control method for when the motor power is too high. Before executing the first dehydration operation, the motor power of the washing machine at a preset detection speed is detected to determine whether it meets the safety start condition for executing the first dehydration operation. If the safety start condition is not met, the motor speed is controlled to reduce the speed so that the corresponding motor power meets the start condition for executing the dehydration operation. The adjusted motor speed is used as the first target speed, and the first dehydration operation is executed at the first target speed. When the safety start condition is met, dehydration is performed at the preset dehydration speed. This method not only ensures stable operation of the motor and avoids continuous high-power operation, but also ensures that the inner drum of the washing machine reaches a reasonable dehydration speed, ensuring the washing and rinsing effect of the clothes.

[0098] Those skilled in the art will appreciate that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is intended to be within the scope of the present invention and to form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A washing machine dehydration control method, characterized in that: The method comprises: When the washing machine completes the washing phase, the motor speed is controlled to increase the speed; When the motor speed rises to the preset detection speed, the corresponding motor power is detected to see if it meets the starting conditions for the dehydration operation; If the motor power does not meet the starting condition for executing the dehydration operation, the motor speed is controlled to be reduced so that the corresponding motor power meets the starting condition for executing the dehydration operation, the adjusted motor speed is used as the first target speed, and the first dehydration operation is performed at the first target speed; After the first dehydration operation is completed, the motor speed is controlled to decrease to a spraying speed, and a spray rinsing operation is performed at the spraying speed; After the spray rinsing operation is completed, the motor speed is controlled to increase to a preset spin speed, and a second spin operation is performed at the spin speed; When the motor speed rises to a preset detection speed, detecting whether the corresponding motor power meets the start condition for executing the dehydration operation includes: determining whether the motor power corresponding to the preset detection speed is less than or equal to a preset safety power threshold; when the motor power is less than or equal to the preset safety power threshold, determining that the motor power meets the start condition for executing the dehydration operation; When the motor power is less than or equal to a preset safety power threshold, the method further includes: determining whether the motor power corresponding to the preset detection speed is greater than a preset first power threshold, the first power threshold < the safety power threshold; when the motor power is greater than the preset first power threshold, maintaining the motor speed at the preset detection speed for a first preset period of time, controlling the motor speed to increase according to a preset speed increase unit, and detecting whether the motor power corresponding to the increased motor speed is less than or equal to the preset safety power threshold; if the motor power corresponding to the increased motor speed is greater than the preset safety power threshold, controlling the motor speed to decrease so that the corresponding motor power meets the starting conditions for executing the dehydration operation, using the adjusted motor speed as the second target speed, and executing the first dehydration operation at the second target speed; after completing the first dehydration operation, controlling the motor speed to decrease to the spray speed, and executing the spray rinsing operation at the spray speed; after completing the spray rinsing operation, controlling the motor speed to increase to the dehydration speed, and executing the second dehydration operation at the dehydration speed, the spray speed < the second target speed < the dehydration speed.

2. The method according to claim 1, characterized in that The method further comprises: If the motor power meets the starting condition for executing the dehydration operation, the motor speed is controlled to increase the dehydration speed, and the first dehydration operation is executed at the dehydration speed; After the first dehydration operation is completed, the motor speed is controlled to decrease to a preset spray speed, and a spray rinsing operation is performed at the spray speed; After the spray rinsing operation is completed, the motor speed is controlled to increase to the dehydration speed, and the second dehydration operation is performed at the dehydration speed.

3. The method according to claim 1, characterized in that The method further comprises: When the motor power is less than or equal to a preset first power threshold, the step of controlling the motor speed to increase to a preset spin speed and performing a first spin operation at the spin speed is executed.

4. The method according to claim 1, wherein The method further comprises: If the motor power corresponding to the motor speed after speed increase is less than or equal to the preset safety power threshold, the motor speed is controlled to increase again according to the preset speed increase unit until the motor power corresponding to the motor speed after speed increase is greater than the preset safety power threshold or reaches the dehydration speed.

5. The method according to any one of claims 2 to 4, characterized in that: The controlling of the motor speed to reduce the speed so that the corresponding motor power meets the starting condition for performing the dehydration operation includes: The motor speed is controlled to be reduced according to the preset speed reduction unit until the motor power corresponding to the reduced motor speed is less than or equal to the preset safety power threshold.

6. The method according to claim 1, characterized in that The performing of the spray rinsing operation at the spray speed includes: During the dehydration process at the spray speed, the spray head arranged in the washing machine is controlled to spray water droplets onto the clothes in the washing machine through the spray path to achieve spray rinsing of the clothes, and the drainage component of the washing machine is controlled to open to discharge the residual water of the spray rinsing while performing the spray rinsing operation.

7. The method according to claim 1, characterized in that The execution time of the first dehydration operation or the second dehydration operation is 0.5-5 minutes, and the execution time of the spray rinsing operation is 0.5-12 minutes.

8. The method according to claim 1, characterized in that The method further comprises: In the process of controlling the motor speed to increase to the preset dehydration speed, when the motor speed rises to the preset detection speed, the corresponding motor power is detected to see whether it meets the starting conditions for executing the dehydration operation; If the motor power does not meet the starting conditions for executing the dehydration operation, the motor speed is controlled to be reduced so that the corresponding motor power meets the starting conditions for executing the dehydration operation, the adjusted motor speed is used as the third target speed, and the second dehydration operation is performed at the third target speed; If the motor power meets the starting condition for executing the dehydration operation, the motor speed is controlled to increase the dehydration speed, and the second dehydration operation is executed at the dehydration speed.

9. A washing machine dehydration control device, characterized in that: The method comprises a functional module for implementing the method according to any one of claims 1 to 7.

10. A washing machine, characterized in that: The method comprises a controller, wherein the controller comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method according to any one of claims 1 to 7 when executing the computer program.

11. The washing machine according to claim 10, characterized in that Also includes: The spray head is connected to the water inlet pipe of the washing machine and is used to spray water droplets onto the clothes in the washing machine.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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