Method of eliminating washing suds, washing apparatus, and computer-readable storage medium

Abstract

The present application provides a method for eliminating washing foam, a washing device and a computer readable storage medium, which can be applied to a washing device with an air flow circuit, wherein the washing device comprises a fan for generating air flow in the air flow circuit and a washing tub in communication with the air flow circuit and adapted to contain washing water. Specifically, the method can comprise: determining whether there is excessive foam during the operation of the washing program, and if so, pausing the operation of the washing program; operating the fan to make the foam generated by the washing water enter the air flow circuit from the washing tub and make the foam entering the air flow circuit be broken up by the fan and re-converted into liquid washing water. Compared with the prior art, the technical solution provided by the present application has beneficial effects. For example, the fan can be used to break up the foam and re-convert it into liquid water for defoaming treatment, which not only has good defoaming effect, but also does not require an additional water source and takes less time.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to a method for eliminating washing foam, a washing device, and a computer-readable storage medium. Background Technology

[0002] Foaming has always been a major problem in washing technology. Foam residue is unacceptable from both a hygiene and user experience perspective. Traditional washing processes primarily eliminate foam through a rhythmic inflow and outflow of water, coupled with corresponding spin speed adjustments. However, this method is not only time-consuming and uses a lot of water, but also has weak defoaming ability. Furthermore, it is difficult to determine the actual amount of foam remaining in the washing tub, posing a risk of causing excessive foaming again. Summary of the Invention

[0003] The purpose of this invention is to provide a method, washing apparatus, and computer-readable storage medium for eliminating washing foam, so as to effectively eliminate washing foam.

[0004] The method for eliminating washing foam provided in this invention can be applied to washing equipment with an airflow circuit. The washing equipment includes a fan for generating airflow in the airflow circuit and a washing tub connected to the airflow circuit and suitable for holding washing water. The method includes: determining whether there is excessive foam during the operation of the washing program; if so, pausing the operation of the washing program; and operating the fan to allow the foam generated by the washing water to enter the airflow circuit from the washing tub and to disperse the foam entering the airflow circuit by the fan, so that it becomes liquid washing water again.

[0005] Optionally, the process of determining whether there is excessive foam during the washing program includes: obtaining the water pressure change in the washing tub while keeping the water volume in the washing tub constant, determining whether the water pressure change is greater than or equal to a first threshold, and if so, determining that there is excessive foam.

[0006] Optionally, the process of determining whether there is excessive foam during the operation of the washing program includes: during the process of the washing tub draining water, obtaining the rate of change of water pressure in the washing tub within a first preset time range, determining whether the rate of change of water pressure is less than or equal to a second threshold, and if so, determining that there is excessive foam.

[0007] Optionally, the method includes: acquiring the torque change of the fan within a second preset time range; determining whether the torque change is less than or equal to a third threshold, and if so, stopping the operation of the fan.

[0008] Optionally, the method includes: acquiring the torque change and maximum torque of the fan within a second preset time range; determining whether the torque change is less than or equal to a third threshold and whether the maximum torque is less than or equal to a fourth threshold; if so, stopping the operation of the fan.

[0009] Optionally, the washing device includes a flushing valve connected to the airflow circuit, and the method further includes: after eliminating excess foam, opening the flushing valve to flush away residual foam in the airflow circuit.

[0010] Optionally, the fan can be turned on while the flushing valve is opened to flush out residual foam in the airflow circuit.

[0011] Optionally, the method includes: operating a fan to return the washing water in the airflow circuit to the washing tub with the airflow generated by the fan.

[0012] Optionally, the washing apparatus includes a drain pump connected to a washing tub, and the method includes: operating the drain pump to discharge washing water from the washing tub outside the washing apparatus.

[0013] Optionally, the washing equipment includes washing machines and washer-dryers.

[0014] The washing device provided in this embodiment of the invention includes, in addition to an airflow circuit, a fan for generating airflow in the airflow circuit, and a washing tub connected to the airflow circuit and suitable for holding washing water, a judgment module for judging whether there is excessive foam during the operation of the washing program; and an execution module for pausing the operation of the washing program when it is determined that there is excessive foam, and running the fan to allow the foam generated by the washing water to enter the airflow circuit from the washing tub and to allow the foam entering the airflow circuit to be dispersed by the fan and turn back into liquid washing water.

[0015] Optionally, the washing equipment also includes an acquisition module for acquiring water pressure changes in the washing tub while maintaining a constant water volume in the tub; and a judgment module for determining whether the water pressure change is greater than or equal to a first threshold, and determining the presence of excessive foam when the water pressure change is greater than or equal to the first threshold.

[0016] Optionally, the washing equipment also includes an acquisition module for acquiring the rate of change of water pressure in the washing tub within a first preset time range during the process of the washing tub draining water; and a judgment module for determining whether the rate of change of water pressure is less than or equal to a second threshold, and determining that there is excessive foam when the rate of change of water pressure is less than or equal to the second threshold.

[0017] Optionally, the washing equipment also includes an acquisition module for acquiring the torque change of the fan within a second preset time range; a judgment module for judging whether the torque change is less than or equal to a third threshold; and an execution module for stopping the fan when the torque change is less than or equal to the third threshold.

[0018] Optionally, the washing equipment also includes an acquisition module for acquiring the torque change and maximum torque of the fan within a second preset time range; a judgment module for determining whether the torque change is less than or equal to a third threshold and whether the maximum torque is less than or equal to a fourth threshold; and an execution module for stopping the fan when it is determined that the torque change is less than or equal to the third threshold and the maximum torque is less than or equal to the fourth threshold.

[0019] The washing device provided in this embodiment of the invention includes, in addition to an airflow circuit, a fan for generating airflow in the airflow circuit, and a washing tub connected to the airflow circuit and suitable for holding washing water, a processor; and a memory storing a computer program that can run on the processor; wherein, when the computer program is executed by the processor, it implements the above-mentioned method for eliminating washing foam.

[0020] The computer-readable storage medium provided in this embodiment of the invention stores a computer program, which, when executed, implements the above-described method for eliminating washing foam.

[0021] Compared with existing technologies, the technical solutions of the embodiments of the present invention have beneficial effects. For example, a blower can be used to disperse the foam and turn it back into liquid water for defoaming treatment, which not only has a good defoaming effect, but also requires no additional water source and is quick.

[0022] For example, it can remove excess foam regardless of whether the washing equipment is in the washing, soaking, or draining state, making it both convenient and practical.

[0023] For example, the degree of elimination of excess foam can also be determined by the change in the torque of the fan, which is convenient and quick, and does not require additional detection devices.

[0024] For example, by judging the maximum torque of the fan, misjudgments caused by judging only the torque change can be eliminated, thereby ensuring that the excessive foam has been eliminated in a timely manner, and thus stopping the operation of the fan in time to save energy.

[0025] For example, a fan can be used to return the liquid washing water formed by the foam being broken up to the washing tub, thereby avoiding the residue of this washing water in the airflow channel.

[0026] For example, a drain pump can be used to discharge the washing water that returns to the washing tub out of the washing equipment, thereby preventing the washing water from remaining in the washing tub.

[0027] For example, after removing excess foam, the flushing valve can be used to clean the remaining foam in the airflow channel, as well as on the fan and heating pipe, thereby preventing the airflow channel, fan, and heating pipe from being corroded by the residual foam.

[0028] For example, when cleaning residual foam in the airflow channels and on the fan and heating pipes, the fan can be turned on to improve the cleaning efficiency and effect of these residual foams.

[0029] Further features of the invention will be presented from the claims, the drawings, and the description of the drawings. The features and combinations thereof described in the foregoing description and those illustrated in the following description of the drawings and / or simply shown in the drawings may be presented not only in the described combinations, but also in other combinations or individually, without departing from the scope of the invention. Embodiments of the invention not described or specifically shown in the drawings but conceivable from the detailed embodiments and from combinations of features should therefore be considered included and disclosed. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a washing device in an embodiment of the present invention;

[0031] Figure 2 This is a schematic flowchart of a method for eliminating washing foam in an embodiment of the present invention;

[0032] Figure 3 This is another schematic flowchart of the method for eliminating washing foam in an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the third process of the method for eliminating washing foam in the embodiments of the present invention;

[0034] Figure 5 This is a schematic diagram of a washing device in an embodiment of the present invention;

[0035] Figure 6 This is another principle block diagram of the washing device in an embodiment of the present invention;

[0036] Figure 7 This is a third principle block diagram of the washing device in this embodiment of the invention. Detailed Implementation

[0037] In existing technologies, methods for eliminating excessive foam during washing not only have poor defoaming effects, but also take a long time and use a lot of water.

[0038] Unlike existing technologies, this invention provides a novel method for eliminating washing foam, applicable to washing equipment with an airflow circuit. The washing equipment includes a fan for generating airflow in the airflow circuit and a washing tub connected to the airflow circuit and suitable for holding washing water. Specifically, the method may include: determining whether excessive foam exists during the washing program; if so, pausing the washing program; and operating the fan to allow the foam generated by the washing water to enter the airflow circuit from the washing tub, and causing the foam entering the airflow circuit to be dispersed by the fan and revert to liquid washing water.

[0039] Compared with existing technologies, the technical solutions of the embodiments of the present invention have beneficial effects. For example, a blower can be used to disperse the foam and turn it back into liquid water for defoaming treatment, which not only has a good defoaming effect, but also requires no additional water source and is quick.

[0040] To make the objectives, features, and beneficial effects of the embodiments of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] Reference Figure 1 This invention provides a washing device 100.

[0042] Specifically, the washing device 100 includes an outer drum 110, a washing tub 120 rotatably mounted inside the outer drum 110, and an airflow channel 130 located between the outer drum 110 and the washing tub 120. The washing tub 120 is adapted to hold washing water 10 for washing items 20. Both ends of the airflow channel 130 communicate with the internal space 121 of the washing tub 120, forming an airflow loop 140 between the airflow channel 130 and the internal space 121 of the washing tub 120.

[0043] In some embodiments, the airflow circuit 140 may be the drying circuit of the washing device 100.

[0044] Specifically, the airflow channel 130 may include a heat exchange section 131 and a heating section 132 that are interconnected. The heat exchange section 131 is equipped with a fan 151, and the heating section 132 is equipped with a heating pipe 152. The fan 151 is used to generate airflow in the airflow circuit 140, and the heating pipe 152 is used to heat the air entering the heating section 132.

[0045] When the washing equipment 100 executes the drying program, the fan 151 and heating element 152 are turned on. The humid and hot air inside the washing tub 120's internal space 121 enters the heat exchange section 131 of the airflow channel 130 under the action of the fan 151, and is cooled in the heat exchange section 131 to form cold air. The cold air further enters the heating section 132 under the action of the fan 151, and is heated into hot air under the action of the heating element 152. The hot air enters the internal space 121 of the washing tub 120 under the action of the fan 151, and exchanges heat with the items 20 inside the internal space 121 to form humid and hot air. This cycle is repeated to dry the items 20.

[0046] Reference Figure 2 The method for eliminating washing foam provided in this embodiment of the invention may include the following steps:

[0047] S11, start the washing program;

[0048] S12, determine whether there is excessive foam; if so, proceed to step S13.

[0049] S13, pause the washing program;

[0050] S14, running the fan.

[0051] Specifically, during the washing program, it is determined whether there is excessive foam 11 in the washing tub 120. If so, the washing program is paused and the fan 151 is activated so that the foam 11 generated by the washing water 10 enters the airflow circuit 140 from the washing tub 120 and the foam 11 entering the airflow circuit 140 is dispersed by the fan 151 and turns back into liquid washing water 10.

[0052] If there is no excessive foam 11 in the washing tub 120, the washing program can continue.

[0053] In some embodiments, the process of determining whether there is excessive foam in step S12 may include: obtaining the water pressure change in the washing tub 120 while maintaining a constant water volume in the washing tub 120 (including the washing state and / or soaking state), determining whether the water pressure change is greater than or equal to a first threshold, and if so, determining that there is excessive foam.

[0054] In practice, the washing equipment 100 is also equipped with a pressure sensor to detect the water level in the washing tub 120. Specifically, the pressure sensor is used to directly detect the water pressure in the washing tub 120, and then use the water pressure to obtain the water level in the washing tub 120.

[0055] Typically, when the water volume in the washing tub 120 remains constant and there is no excessive foam, the water level change in the washing tub 120 is relatively small. Therefore, the water pressure change in the washing tub 120 is also relatively small, and when the water volume in the washing tub 120 remains constant, the water pressure change will be less than a certain threshold. For ease of description, this threshold can be referred to as the first threshold.

[0056] When the water volume in the washing tub 120 remains constant and excessive foam is present, the water level in the washing tub 120 fluctuates considerably. Consequently, the water pressure in the washing tub 120 also fluctuates considerably, and when the water volume in the washing tub 120 remains constant, the water pressure fluctuation will be greater than or equal to the first threshold.

[0057] In some embodiments, the water pressure change can be the difference between the maximum water pressure and the minimum water pressure while maintaining a constant water volume in the washing tub 120.

[0058] In some embodiments, the first threshold may be 80 Pa.

[0059] In practical implementation, the water pressure changes within the washing tub 120 can be monitored in real time while maintaining a constant water volume. This allows for continuous assessment of whether the water pressure change over a certain period, such as 4 seconds, is greater than or equal to a first threshold. This enables timely detection of excessive foam 11 within the washing tub 120.

[0060] In some embodiments, the process of determining whether there is excessive foam in step S12 may also include: during the process of the washing tub 120 draining water, obtaining the water pressure change rate in the washing tub 120 within a first preset time range, and determining whether the water pressure change rate is less than or equal to a second threshold. If so, it is determined that there is excessive foam.

[0061] In practice, the rate of change of water pressure is the ratio of the water pressure change within a first preset time range to the first preset time range itself. For example, if the first preset time range is Δt, and the water pressure change within Δt is ΔP, then the rate of change of water pressure is ΔP / Δt.

[0062] In some embodiments, the first preset time range may be within [5 seconds, 10 seconds]. For example, the first preset time range may be 5 seconds.

[0063] Typically, when the washing tub 120 is draining water and there is no excessive foam, the rate of change of water pressure inside the washing tub 120 is relatively large and will exceed a certain threshold. For ease of description, this threshold can be referred to as the second threshold.

[0064] When the washing tub 120 is draining water and there is excessive foam, the rate of change of water pressure inside the washing tub 120 is relatively small and will be less than or equal to the second threshold.

[0065] In some embodiments, the second threshold may be 10 Pascals per second.

[0066] In practical implementation, the water pressure change rate of the washing tub 120 can be acquired in real time within a first preset time range during the drainage process of the washing tub 120, so as to continuously determine whether the water pressure change rate is less than or equal to a second threshold. For example, it can be determined whether the water pressure drop is less than 40 Pa within a certain time, such as 4 seconds. In this way, it can be determined in a timely manner whether there is excessive foam 11 in the washing tub 120.

[0067] If excessive foam 11 is detected in the washing tub 120, the washing program is paused to promptly eliminate the excess foam 11 in the washing tub 120. Specifically, the fan 151 can be operated to allow the excess foam 11 generated by the washing water 10 to enter the airflow circuit 140 from the washing tub 120, and the foam 11 entering the airflow circuit 140 is broken up by the fan 151 and turns back into liquid washing water 10.

[0068] In practice, the negative pressure generated by the operation of the blower 151 can cause the foam 11 in the washing tub 120 to enter the airflow channel 130, and the foam 11 entering the airflow channel 130 can be dispersed by the blower 151 and turn back into liquid washing water 10.

[0069] In some embodiments, the method for eliminating washing foam provided by the present invention may further include a process of determining whether excessive foam has been eliminated.

[0070] Reference Figure 3 The method for eliminating washing foam provided in this embodiment of the invention may further include:

[0071] S15, acquire the torque change of the fan within a second preset time range;

[0072] S16, determine whether the torque change is less than or equal to the third threshold. If so, proceed to step S17.

[0073] S17, Stop the operation of the fan.

[0074] Specifically, under the action of the fan 151, the foam 11 in the washing tub 120 can be continuously drawn into the airflow channel 130. When the foam 11 enters the airflow channel 130 and passes through the fan 151, it will hinder the operation of the fan 151, thereby reducing the speed of the fan 151 and increasing the torque. As the foam 11 is gradually eliminated, the speed of the fan 151 will increase and the torque will decrease, and the change in torque within a certain time range will also gradually decrease.

[0075] In some embodiments, the torque of the fan 151 can be directly output through the motor of the fan 151. For example, a brushless direct current motor (BLDCM) can directly output a torque signal.

[0076] In this embodiment of the invention, the change in torque of the fan 151 can be used to determine whether the foam 11 has been eliminated.

[0077] Specifically, the torque change of the fan 151 within a second preset time range can be measured during the process of eliminating washing foam 11 to determine whether the torque change is less than or equal to a certain threshold. For ease of description, this threshold can be referred to as the third threshold.

[0078] In some embodiments, the torque variation can be the difference between the maximum torque and the minimum torque of the fan 151 within a second preset time range.

[0079] In some embodiments, the second preset time range may be within [0 seconds, 120 seconds]. For example, the second preset time range may be 30 seconds.

[0080] In some embodiments, the third threshold may be 20 millinewtons.

[0081] In practical implementation, the torque change of the fan 151 within a second preset time range can be acquired in real time to continuously determine whether the torque change is less than or equal to a third threshold. In this way, it is possible to promptly determine whether the excess foam 11 has been eliminated, so that the fan 151 can be stopped in time when the excess foam 11 has been eliminated, thereby saving energy consumption.

[0082] In the specific implementation of step S16, when it is determined that the torque change is not less than or equal to the third threshold, the process can return to step S14 to continue running the fan 151 to eliminate the excess foam 11.

[0083] Typically, the factors affecting the torque change of the fan 151 are not limited to the interference of foam 11. For example, when the output power of the fan 151 changes, the torque of the fan 151 will also change accordingly. Therefore, in the case where the torque of the fan 151 changes due to non-foam interference, even if the torque change of the fan 151 within the second preset time range is less than or equal to the third threshold, it does not necessarily mean that the excessive foam 11 has been eliminated.

[0084] To eliminate the above-mentioned effects, in this embodiment of the invention, the maximum torque of the fan 151 within a second preset time range can also be determined.

[0085] Reference Figure 4The method for eliminating washing foam provided in this embodiment of the invention may further include:

[0086] S18, obtain the torque change and maximum torque of the fan within a second preset time range;

[0087] S19, determine whether the torque change is less than or equal to the third threshold and whether the maximum torque is less than or equal to the fourth threshold. If so, proceed to step S20.

[0088] S20, stop the operation of the fan.

[0089] In practical implementation, the determination of torque change of fan 151 within the second preset time range can be referenced. Figure 3 Description of the implementation process shown.

[0090] Typically, when the operation of the fan 151 is disturbed by the foam 11, its torque increases, and its maximum torque is greater than or equal to the maximum torque under normal operating conditions. When the excess foam 11 is eliminated, the maximum torque of the fan 151 decreases accordingly, and its maximum torque within a second preset time range is less than or equal to a certain threshold (conversely, if the maximum torque of the fan 151 within the second preset time range is greater than a certain threshold, it indicates that the excess foam 11 has not yet been eliminated). For ease of description, this threshold can be referred to as the fourth threshold.

[0091] In specific implementation, the fourth threshold can be the maximum torque when the fan 151 is in normal working condition and is not disturbed by the foam 11.

[0092] In some embodiments, when the fan 151 is in normal operating condition and is not disturbed by the foam 11, its torque can be within the range of [0 millinewtm, 120 millinewtm], wherein the maximum torque is less than or equal to 120 millinewtm. When the fan 151 is in normal operating condition and is disturbed by the foam 11, its torque can be within the range of [120 millinewtm, 160 millinewtm], wherein the maximum torque is less than or equal to 160 millinewtm.

[0093] In some embodiments, the fourth threshold may be 120 millinewtons.

[0094] In practice, the determination of torque change and maximum torque can be carried out simultaneously or sequentially, and this is not limited in the embodiments of the present invention.

[0095] When the torque change of the fan 151 within the second preset time range is less than or equal to the third threshold and the maximum torque is less than or equal to the fourth threshold, it can be determined that the excess foam 11 has been eliminated.

[0096] In practical implementation, the torque change and maximum torque of the fan 151 within a second preset time range can be acquired in real time during the process of eliminating washing foam 11. This allows for continuous determination of whether the torque change is less than or equal to a third threshold and whether the maximum torque is less than or equal to a fourth threshold. In this way, it is possible to promptly determine whether excessive foam 11 has been eliminated, and to stop the fan 151 in a timely manner when excessive foam 11 has been eliminated, thereby saving energy.

[0097] In the specific implementation of step S19, when it is determined that the torque change is not less than or equal to the third threshold and the maximum torque is not less than or equal to the fourth threshold, the process can return to step S14 to continue running the fan 151 to eliminate the excess foam 11.

[0098] In this embodiment of the invention, the technical means for determining whether the excess foam 11 has been eliminated may include any other known conventional technical means in addition to the methods mentioned above.

[0099] In some embodiments, the method for eliminating washing foam provided in this invention may further include:

[0100] The fan 151 is operated so that the washing water 10 in the airflow circuit 140 is returned to the washing tub 120 by the airflow generated by the fan 151.

[0101] Specifically, the washing water 10 in the airflow circuit 140 is liquid washing water 10 formed by the foam 11 being dispersed by the fan 151. This washing water 10 can be returned to the washing tub 120 by the airflow generated by the fan 151.

[0102] Continue to refer to Figure 1 The washing equipment 100 also includes a drain pump 153 connected to the washing tub 120.

[0103] In some embodiments, the method for eliminating washing foam provided in this invention may further include:

[0104] Operate the drain pump 153 to discharge the washing water 10 from the washing tub 120 outside the washing equipment 100.

[0105] In this way, the washing water 10 formed by the foam 11 being dispersed by the blower 151 can be discharged from the washing equipment 100 by the drain pump 153.

[0106] Continue to refer to Figure 1 The washing device 100 also includes a flushing valve 154 connected to the airflow circuit 140. Specifically, the flushing valve 154 may be connected to the airflow passage 130.

[0107] In a specific implementation, the rinsing valve 154 can be a rinsing valve in the washing equipment 100 used to rinse lint.

[0108] In some embodiments, the method for eliminating washing foam provided in this invention may further include:

[0109] After removing excess foam, open flush valve 154 to flush out any remaining foam 11 in airflow circuit 140.

[0110] In this way, the residual foam 11 in the airflow channel 130, as well as on the fan 151 and heating pipe 152, can be cleaned, thereby preventing the residual foam 11 from corroding the airflow channel 130, fan 151 and heating pipe 152.

[0111] In some embodiments, the method for eliminating washing foam provided in this invention may further include:

[0112] During the process of opening the flushing valve 154 to flush the residual foam 11 in the airflow circuit 140, the fan 151 is turned on.

[0113] This can improve the cleaning efficiency and effect of residual foam 11.

[0114] In specific implementation, the process of cleaning the residual foam 11 in the airflow channel 130 and on the fan 151 and heating tube 152 can be located in any washing stage after the excess foam 11 is eliminated, and the specific order is not limited in the embodiments of the present invention.

[0115] In practice, the washing equipment 100 may include a washing machine and a washer-dryer.

[0116] Reference Figure 5 The washing device 100 provided in this embodiment of the invention may further include a judgment module 210 and an execution module 220.

[0117] Specifically, the judgment module 210 is used to determine whether there is excessive foam 11 during the operation of the washing program; the execution module 220 is used to pause the operation of the washing program when it is determined that there is excessive foam 11, and to run the fan 151 so that the foam 11 generated by the washing water 10 enters the airflow circuit 140 from the washing tub 120 and is dispersed by the fan 151 and turns back into liquid washing water 10.

[0118] Reference Figure 6 The washing equipment 100 may also include an acquisition module 230.

[0119] In some embodiments, the acquisition module 230 is used to acquire the water pressure change in the washing tub 120 while maintaining a constant water volume in the washing tub 120. Correspondingly, the determination module 210 is used to determine whether the water pressure change is greater than or equal to a first threshold, and to determine the presence of excessive foam 11 when the water pressure change is greater than or equal to the first threshold.

[0120] In some embodiments, the acquisition module 230 can also be used to acquire the rate of change of water pressure in the washing tub 120 within a first preset time range during the process of the washing tub 120 draining water. Accordingly, the determination module 210 is used to determine whether the rate of change of water pressure is less than or equal to a second threshold, and to determine the presence of excessive foam 11 when the rate of change of water pressure is less than or equal to the second threshold.

[0121] In some embodiments, the acquisition module 230 can also be used to acquire the torque change of the fan 151 within a second preset time range. Accordingly, the determination module 210 is used to determine whether the torque change is less than or equal to a third threshold. The execution module 220 is used to stop the operation of the fan 151 when the torque change is less than or equal to the third threshold.

[0122] In some embodiments, the acquisition module 230 can also be used to acquire the torque change and maximum torque of the fan 151 within a second preset time range. Accordingly, the determination module 210 is used to determine whether the torque change is less than or equal to a third threshold and whether the maximum torque is less than or equal to a fourth threshold. The execution module 220 is used to stop the operation of the fan 151 when it is determined that the torque change is less than or equal to the third threshold and the maximum torque is less than or equal to the fourth threshold.

[0123] Reference Figure 7 The washing device 100 provided in this embodiment of the invention may further include a processor 310 and a memory 320.

[0124] Specifically, the memory 320 stores a computer program that can run on the processor 310, which, when executed by the processor 310, implements the method for eliminating washing foam provided in the embodiments of the present invention.

[0125] Continue to refer to Figure 1 The washing equipment 100 also includes a control device 300.

[0126] Specifically, the control device 300 includes the processor 310 and memory 320 described above. The processor 310 is connected to electrical components such as the fan 151, heating element 152, drain pump 153, and flushing valve 154, and is adapted to control the operation of the corresponding electrical components when executing the computer program described above.

[0127] This invention also provides a computer-readable storage medium storing a computer program that, when executed, implements the method for eliminating washing foam provided in this invention.

[0128] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the invention, even when only a single embodiment is described with respect to a particular feature. The feature examples provided in this disclosure are intended to be illustrative and not limiting, unless otherwise stated. In practice, one or more technical features of the dependent claims may be combined with the technical features of the independent claims as needed and where technically feasible, and the technical features from the respective independent claims may be combined in any suitable manner rather than solely by the specific combinations listed in the claims.

[0129] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A method for eliminating washing foam, applied to a washing apparatus (100) having an airflow circuit (140), the washing apparatus (100) comprising a fan (151) for generating airflow in the airflow circuit (140) and a washing tub (120) in communication with the airflow circuit (140) and adapted to hold washing water (10), characterized in that, include: During the washing program, check for excessive foam; if so, pause the washing program. The fan (151) is operated so that the foam (11) generated by the washing water (10) enters the airflow circuit (140) from the washing tub (120) and the foam (11) entering the airflow circuit (140) is broken up by the fan (151) and turns back into liquid washing water (10); The method for eliminating washing foam also includes: The torque change and maximum torque of the fan (151) within a second preset time range are obtained; Determine whether the torque change is less than or equal to the third threshold and whether the maximum torque is less than or equal to the fourth threshold. If so, stop the operation of the fan (151).

2. The method according to claim 1, characterized in that, The process of determining whether there is excessive foam during the operation of the washing program includes: obtaining the water pressure change in the washing tub (120) while maintaining the water volume in the washing tub (120) at a constant level, determining whether the water pressure change is greater than or equal to a first threshold, and if so, determining that there is excessive foam.

3. The method according to claim 1, characterized in that, The process of determining whether there is excessive foam during the operation of the washing program includes: during the process of the washing tub (120) draining water, obtaining the water pressure change rate in the washing tub (120) within a first preset time range, determining whether the water pressure change rate is less than or equal to a second threshold, and if so, determining that there is excessive foam.

4. The method according to claim 1, characterized in that, The washing device (100) includes a flushing valve (154) connected to the airflow circuit (140), and the method further includes: After removing excess foam, the flushing valve (154) is opened to flush out any remaining foam (11) in the airflow circuit (140).

5. The method according to claim 4, characterized in that, During the process of opening the flushing valve (154) to flush the residual foam (11) in the airflow circuit (140), the fan (151) is turned on.

6. The method according to claim 1, characterized in that, include: The fan (151) is operated so that the washing water (10) in the airflow circuit (140) returns to the washing tub (120) with the airflow generated by the fan (151).

7. The method according to claim 6, characterized in that, The washing equipment (100) includes a drain pump (153) connected to the washing tub (120), and the method includes: The drain pump (153) is operated to discharge the washing water (10) in the washing tub (120) out of the washing equipment (100).

8. The method according to claim 1, characterized in that, The washing equipment (100) includes a washing machine and a washer-dryer.

9. A washing apparatus (100) comprising an airflow circuit (140), a fan (151) for generating airflow in the airflow circuit (140), and a washing tub (120) connected to the airflow circuit (140) and adapted to hold washing water (10), characterized in that, include: The judgment module (210) is used to determine whether there is excessive foam during the operation of the washing program; The execution module (220) is used to pause the washing program when it is determined that there is excessive foam, and to run the fan (151) so that the foam (11) generated by the washing water (10) enters the airflow circuit (140) from the washing tub (120) and the foam (11) entering the airflow circuit (140) is broken up by the fan (151) and turns back into liquid washing water (10); The acquisition module (230) is used to acquire the torque change and maximum torque of the fan (151) within a second preset time range; the judgment module (210) is used to determine whether the torque change is less than or equal to a third threshold and whether the maximum torque is less than or equal to a fourth threshold; the execution module (220) is used to stop the operation of the fan (151) when it is determined that the torque change is less than or equal to the third threshold and the maximum torque is less than or equal to the fourth threshold.

10. The washing apparatus (100) according to claim 9, characterized in that, The acquisition module (230) is used to acquire the water pressure change in the washing tub (120) while maintaining a constant water volume in the washing tub (120); the judgment module (210) is used to determine whether the water pressure change is greater than or equal to a first threshold, and to determine the presence of excessive foam when the water pressure change is greater than or equal to the first threshold.

11. The washing apparatus (100) according to claim 9, characterized in that, The acquisition module (230) is used to acquire the water pressure change rate in the washing tub (120) within a first preset time range during the process of the washing tub (120) draining water; the judgment module (210) is used to determine whether the water pressure change rate is less than or equal to a second threshold, and to determine that there is excessive foam when the water pressure change rate is less than or equal to the second threshold.

12. A washing apparatus (100) comprising an airflow circuit (140), a fan (151) for generating airflow in the airflow circuit (140), and a washing tub (120) connected to the airflow circuit (140) and adapted to hold washing water (10), characterized in that, include: Processor (310); A memory (320) storing a computer program that can run on the processor (310); When the computer program is executed by the processor (310), it implements the method as described in any one of claims 1 to 8.

13. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed, it implements the method as described in any one of claims 1 to 8.

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