Control method of washing machine and washing machine

Abstract

The embodiment of the application provides a control method of a washing machine and the washing machine, the washing machine comprises a washing drum and a safety switch, the washing drum is provided with a protruding part extending radially outward, the protruding part is provided with a through hole, a rod part of the safety switch is inserted into the through hole, when the washing drum shakes, an inner wall surface of the through hole touches the rod part, so that the rod part is deformed and causes the capacitance value of the safety switch to change; the control method of the washing machine comprises the following steps: determining a working mode of the washing machine, the working mode comprises a washing mode, a drainage mode and a dehydration mode; acquiring a capacitance value change amount of the safety switch; and adjusting a working parameter of the washing machine in the corresponding working mode according to the capacitance value change amount, so as to avoid the collision between the washing drum and a box body of the washing machine, reduce the vibration and noise of the washing machine; meanwhile, since the capacitance value of the safety switch can change due to the large-scale shaking of the washing drum in any direction, the sensitivity of the safety switch is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of household appliances, more particularly to a control method of a washing machine and the washing machine. BACKGROUND

[0002] The washing machine is one of the household appliances commonly used in people's daily life. During the use of the washing machine, when the clothes are seriously unbalanced, the outer drum swings greatly, and even the outer drum hits the cabinet.

[0003] At present, a touch point safety switch is usually arranged on the pulsator washing machine, which cuts off the power supply after being hit by the outer drum to protect the washing machine. However, since the position of the safety switch is fixed and the safety switch is far away from the outer drum, the condition for triggering the safety switch by the outer drum is harsh and the reliability is poor, thereby causing great vibration and noise of the whole washing machine, and poor user experience. SUMMARY

[0004] The control method of the washing machine and the washing machine provided by the embodiments of the present application can improve the sensitivity of the safety switch, reduce the vibration and noise of the washing machine, and improve the user experience.

[0005] The control method of the washing machine provided by the embodiments of the present application comprises the following steps:

[0006] determining the working mode of the washing machine, wherein the working mode comprises a washing mode, a draining mode and a spinning mode;

[0007] obtaining the change amount of the capacitance value of the safety switch;

[0008] adjusting the working parameter of the washing machine in the corresponding working mode according to the change amount of the capacitance value.

[0009] In some embodiments, the step of adjusting the working parameter of the washing machine in the corresponding working mode according to the change amount of the capacitance value comprises:

[0010] when the working mode of the washing machine is the washing mode, obtaining the first change amount of the capacitance value of the safety switch; if the first change amount of the capacitance value is greater than or equal to a first preset change amount threshold of the capacitance value, controlling the motor of the washing machine to reduce the washing beat;

[0011] When the working mode of the washing machine is the draining mode, a second capacitance value change amount of the safety switch after the draining is completed is obtained, and whether the washing machine executes a spin-drying program is determined according to the second capacitance value change amount;

[0012] When the working mode of the washing machine is the spin-drying mode, a third capacitance value change amount of the safety switch is obtained, and whether the washing machine stops the spin-drying program is determined according to the third capacitance value change amount.

[0013] In some embodiments, the step of determining whether the washing machine executes the spin-drying program according to the second capacitance value change amount comprises:

[0014] comparing the second capacitance value change amount with a second preset capacitance value change threshold;

[0015] If the second capacitance value change amount is greater than or equal to the second preset capacitance value change threshold, the washing machine is controlled to re-irrigate and execute a leveling program;

[0016] If the second capacitance value change amount is less than the second preset capacitance value change threshold, the washing machine is controlled to enter the spin-drying program.

[0017] In some embodiments, the step of determining whether the washing machine stops the spin-drying program according to the third capacitance value change amount comprises:

[0018] comparing the third capacitance value change amount with a third preset capacitance value change threshold;

[0019] If the third capacitance value change amount is greater than or equal to the third capacitance value change threshold, the washing machine is controlled to stop the spin-drying program and execute the leveling program after re-irrigation;

[0020] If the third capacitance value change amount is less than the third preset capacitance value change threshold, the washing machine is controlled to continue executing the spin-drying program.

[0021] In some embodiments, the step of controlling the washing machine to continue executing the spin-drying program comprises:

[0022] calculating a difference between the third capacitance value change amount and the third preset capacitance value change threshold;

[0023] determining whether the difference is within a preset difference range;

[0024] If the determination result is yes, a spin-drying rotational speed of a washing drum in the washing machine is adjusted to a first rotational speed;

[0025] If the determination result is no, the spin-drying rotational speed of the washing drum in the washing machine is adjusted to a second rotational speed;

[0026] The first rotation speed is less than the second rotation speed, and the second rotation speed is not more than a maximum spin speed of the washing machine.

[0027] In some embodiments, the control method of the washing machine further comprises:

[0028] obtaining a fourth capacitance value change amount of the safety switch when the washing machine is not running;

[0029] if the fourth capacitance value change amount is greater than or equal to a fourth preset capacitance value change amount threshold, issuing an indication to adjust a bottom corner height of the washing machine or a placement position of the washing machine.

[0030] Embodiments of the present application also provide a washing machine, comprising:

[0031] a cabinet;

[0032] a washing drum arranged in the cabinet, the washing drum being provided with a protruding portion extending radially outward, the protruding portion being provided with a through hole;

[0033] a safety switch arranged in the cabinet and fixedly connected with the cabinet, the safety switch comprising a rod portion, the rod portion being inserted into the through hole, when the washing drum shakes, an inner wall surface of the through hole touching the rod portion to cause the rod portion to deform and cause a capacitance value of the safety switch to change;

[0034] a capacitance sensor electrically connected with the safety switch, the capacitance sensor being configured to detect a capacitance value change amount of the safety switch;

[0035] a control unit electrically connected with the capacitance sensor, the control unit being configured to determine a working mode of the washing machine, obtain the capacitance value change amount of the safety switch, and adjust a working parameter of the washing machine in the corresponding working mode according to the capacitance value change amount.

[0036] In some embodiments, the safety switch further comprises oppositely arranged first and second electrode sheets, a capacitance being formed between the first and second electrode sheets, the second electrode sheet being connected with the rod portion; when the rod portion deforms, the second electrode sheet can change a facing area with the first electrode sheet to cause the capacitance value of the safety switch to change.

[0037] In some embodiments, the washing drum comprises an outer drum, the outer drum comprising an outer drum main body and an outer drum ring, the outer drum ring being arranged at an opening of the outer drum main body, and the protruding portion being fixedly connected with the outer drum ring.

[0038] In some embodiments, a hole diameter of the through hole is greater than a diameter of the rod portion.

[0039] The control method of the washing machine and the washing machine provided by the embodiment of the present application can avoid the collision between the washing drum and the washing machine box body, thereby reducing the vibration and noise of the washing machine and improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0041] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0042] Figure 1 The structure schematic diagram of the washing machine provided by the embodiment of the present application is shown.

[0043] Figure 2 The structure schematic diagram of the washing drum and the safety switch is shown. Figure 1

[0044] Figure 3 The exploded schematic diagram of the washing drum and the safety switch is shown. Figure 1

[0045] Figure 4 The structure schematic diagram of the safety switch is shown. Figure 3

[0046] The first flow schematic diagram of the control method of the washing machine provided by the embodiment of the present application is shown. Figure 5

[0047] The second flow schematic diagram of the control method of the washing machine provided by the embodiment of the present application is shown. Figure 6

[0048] The third flow schematic diagram of the control method of the washing machine provided by the embodiment of the present application is shown. Figure 7 DETAILED DESCRIPTION ​​​

[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0050] This application provides a control method and a washing machine, which can improve the sensitivity of the safety switch, reduce the vibration and noise of the washing machine, and improve the user experience. It should be noted that the washing machine provided in this application is a top-loading washing machine, and will be described below with reference to the accompanying drawings.

[0051] Please refer to Figures 1 to 4 , Figure 1 This is a schematic diagram of the structure of a washing machine provided in an embodiment of this application. Figure 2 for Figure 1 The diagram shown illustrates the structure of the washing tub and safety switch. Figure 3 for Figure 1 The diagram shown is an exploded view of the washing tub and safety switch. Figure 4 for Figure 3 The diagram shows the structure of the safety switch. The washing machine provided in this embodiment includes a cabinet 10, a washing drum 20, and a safety switch 30.

[0052] The washing drum 20 and safety switch 30 are located inside and connected to the housing 10. It should be noted that the washing machine includes an outer drum and an inner drum. The outer drum can serve as a support frame for the inner drum, and the inner drum and outer drum are rotatably connected, meaning the inner drum rotates inside the outer drum to process the clothes. It can be understood that the washing drum 20 can be considered the outer drum of the washing machine.

[0053] For example, the washing drum 20 is suspended from the inner wall of the housing 10 by four suspension springs, and the safety switch 30 is fixedly connected to the housing 10. In some embodiments, the washing machine also includes a control panel 40, which is fixed to the top of the housing 10, and the safety switch 30 can be fixed to the control panel 40 by fasteners such as screws or bolts.

[0054] like Figure 2 and Figure 3 As shown in the embodiment of this application, the washing drum 20 is provided with a radially outwardly extending protrusion 21, and the protrusion 21 is provided with a through hole 211. Preferably, the protrusion 21 and the washing drum 20 are integrally formed. It should be noted that when the washing drum 20 shakes, the protrusion 21 also shakes synchronously with the washing drum 20, that is, the protrusion 21 and the washing drum 20 form a linkage structure.

[0055] In some embodiments, the washing tub 20 may include an outer tub 22 and an outer tub ring 23, with the outer tub ring 23 covering the opening of the outer tub 22, and a protrusion 21 connected to the outer tub ring 23. Alternatively, the protrusion 21 can be understood as being radially arranged along the outer tub ring 23 and forming an integral structure with it. When the outer tub 22 shakes, the outer tub ring 23 and the protrusion 21 also shake synchronously with the washing tub 20.

[0056] like Figure 1 and Figure 5 As shown, the safety switch 30 includes a sensing part 32 and a rod part 31. One end of the rod part 31 is connected to the sensing part 32, and the other end of the rod part 31 is a free end. The sensing part 32 is provided with a mounting hole 321, through which screws can be used to fix the safety switch 30 to the control panel base 40 of the washing machine.

[0057] refer to Figures 1 to 5 The rod 31 is inserted into the through hole 211 of the protrusion 21. Preferably, the through hole 211 is a circular hole, and the diameter of the through hole 211 is greater than or equal to the diameter of the rod 31, so that a certain gap is reserved between the rod 31 and the inner wall surface of the through hole 211. In a horizontal static state, the rod 31 is vertically downward, and the rod 31 is not in contact with the inner wall surface of the through hole 211, that is, the protrusion 21 does not apply a horizontal force to the rod 31. When the washing drum 20 shakes significantly, the protrusion 21 also shakes synchronously. At this time, the inner wall surface of the through hole 211 will directly touch the rod 31, that is, the protrusion 21 collides with the rod 31, causing the rod 31 to undergo elastic deformation and causing a change in the capacitance value of the safety switch 30.

[0058] In some embodiments, the sensing unit 32 includes a first electrode plate and a second electrode plate disposed opposite to each other, and a capacitor can be formed between the first electrode plate and the second electrode plate. The second electrode plate is fixedly connected to the rod 31. When the rod 31 deforms, it can drive the second electrode plate to move synchronously, thereby changing the facing area between the second electrode plate and the first electrode plate, and thus changing the capacitance value between the first electrode plate and the second electrode plate.

[0059] It can be understood that, since the rod portion 31 of the safety switch 30 is inserted into the through hole 211 of the protruding portion 21, when the washing drum 20 shakes greatly in any direction, the inner wall surface of the through hole 211 can touch the rod portion 31, and the capacitance value of the safety switch 30 can change, so that the working parameter of the washing machine can be adjusted according to the capacitance value change amount, such as adjusting the dehydration rotating speed of the washing machine or reducing the washing beat of the motor, to avoid the collision between the washing drum 20 and the washing machine box 10, thereby reducing the vibration and noise of the washing machine and improving the user experience. At the same time, since the capacitance value of the safety switch 30 can change due to the great shaking of the washing drum 20 in any direction, the sensitivity of the safety switch 30 can be improved, and the detection accuracy and reliability are high.

[0060] In order to more clearly illustrate the adjustment method of the working parameter of the washing machine according to the embodiments of the present application, the control method of the washing machine will be described below.

[0061] For example, please refer to Figures 1 to 4 and refer to Figure 5 , Figure 5 The first flowchart of the control method of the washing machine provided by the embodiments of the present application is shown. The embodiments of the present application also provide a control method of a washing machine, and the structure of the washing machine can refer to the above description, which will not be described here. The control method of the washing machine can include:

[0062] 101, obtaining the working mode of the washing machine, and the working mode includes the washing mode, the drainage mode and the dehydration mode.

[0063] 102, obtaining the capacitance value change amount of the safety switch.

[0064] 103, adjusting the working parameter of the washing machine in the corresponding working mode according to the capacitance value change amount.

[0065] Three working modes are set for the washing machine, that is, the working mode includes the washing mode, the drainage mode and the dehydration mode. After the control method is used, the safety control of the washing machine in different working modes can be realized, the collision between the washing drum 20 and the washing machine box 10 due to the center of gravity deviation of the washing drum 20 can be avoided, thereby reducing the vibration and noise of the washing machine and improving the user experience.

[0066] For example, please refer to Figures 1 to 4 and refer to Figure 6 , Figure 6 The second flowchart of the control method of the washing machine provided by the embodiments of the present application is shown. The embodiments of the present application also provide a control method of a washing machine, which can include:

[0067] 201, obtaining the working mode of the washing machine, and the working mode includes the washing mode, the drainage mode and the dehydration mode.

[0068] 202、When the working mode of the washing machine is the washing mode, a first capacitance value change amount of the safety switch is obtained; if the first capacitance value change amount is greater than or equal to a first preset capacitance value change threshold, the motor of the washing machine is controlled to reduce the washing beat.

[0069] For example, the pulsator washing machine drives the pulsator to rotate in forward and reverse directions to form water flow and washing force, so as to achieve the effect of washing clothes. During the washing process, the washing water in the washing drum 20 is driven to rotate by the pulsator at the bottom of the washing drum 20 to form water flow, which can drive the clothes to be washed to rotate. It should be noted that during the rotation washing process, the clothes are easy to be entangled, so that the center of gravity of the washing drum 20 deviates, and the shaking amplitude of the washing drum 20 is too large.

[0070] In the embodiment of the present application, during the washing process of the washing machine, the large amplitude shaking of the washing drum 20 in any direction can cause the inner wall surface of the through hole 211 to touch the rod portion 31 of the safety switch 30, so that the rod portion 31 is deformed and causes the capacitance value of the safety switch 30 to change. By obtaining the first capacitance value change amount of the safety switch 30, and comparing the first capacitance value change amount with the first preset capacitance value change threshold, if the first capacitance value change amount is greater than or equal to the first preset capacitance value change threshold, the motor of the washing machine is controlled to reduce the washing beat, that is, the rotation stop ratio of the pulsator is reduced, so that the rotation of the washing water tends to be gentle, so as to reduce the entanglement between the clothes to be washed, and it is beneficial to untangle the entanglement between the clothes to be washed, reduce the vibration and noise of the washing machine, avoid the collision between the washing drum 20 and the washing machine box 10, and protect the washing machine from damage.

[0071] The first capacitance value change amount can be selected as the maximum value of the first capacitance value change amount within a certain time in the washing mode, so as to more accurately reflect the shaking amplitude of the washing drum 20 within the time. For example, the sampling frequency of the first capacitance value change amount can be configured to 5s, and the implementation personnel can also select it according to their own needs.

[0072] In some embodiments, the first preset capacitance value change threshold can be understood as the capacitance value change amount of the safety switch 30 when the washing drum 20 hits the box 10. If the first capacitance value change amount is less than the first preset capacitance value change, it indicates that the shaking of the washing drum 20 is within an acceptable range, and there is no situation of hitting the box 10, at this time the motor of the washing machine maintains the current washing beat.

[0073] 203、When the working mode of the washing machine is the washing mode, a first capacitance value change amount of the safety switch is obtained; if the first capacitance value change amount is greater than or equal to a first preset capacitance value change threshold, the motor of the washing machine is controlled to reduce the washing beat.

[0074] It should be noted that after the washing machine ends the draining, if the clothes in the washing drum 20 are seriously eccentric, the washing machine will shake abnormally if the washing machine directly executes the dehydration program. Therefore, in the embodiment of the present application, the second capacitance value change of the safety switch 30 is obtained after the draining ends, and whether the washing machine executes the dehydration program is determined according to the second capacitance value change.

[0075] Specifically, after the draining ends, if the clothes in the washing drum 20 are seriously eccentric, the washing drum 20 will tilt to the side of the eccentricity, at this time, the inner wall surface of the through hole 211 will touch the rod part 31 of the safety switch 30, so that the rod part 31 is deformed and causes the capacitance value of the safety switch 30 to change.

[0076] By obtaining the second capacitance value change of the safety switch 30 after the draining ends, and comparing the second capacitance value change with the second preset capacitance value change threshold, if the second capacitance value change is greater than or equal to the second preset capacitance value change threshold, the washing machine is controlled to re- water and execute the leveling program, so that the clothes are evenly distributed before entering the dehydration program.

[0077] Further, in the embodiment of the present application, if the second capacitance value change is less than the second preset capacitance value change threshold, the washing machine is controlled to enter the dehydration program.

[0078] 204、When the working mode of the washing machine is the dehydration mode, the third capacitance value change of the safety switch is obtained, and whether the washing machine stops the dehydration program is determined according to the third capacitance value change.

[0079] In the embodiment of the present application, during the dehydration process of the washing machine, the washing drum shakes in any direction, which can make the inner wall surface of the through hole 211 touch the rod part 31 of the safety switch 30, so that the rod part 31 is deformed and causes the capacitance value of the safety switch 30 to change. It should be noted that the more uneven the distribution of the clothes is during the dehydration process, the greater the shaking amplitude of the washing drum 20 is, and the greater the capacitance value change of the safety switch 30 is.

[0080] In the present application, the third capacitance value change of the safety switch 30 is obtained when the washing machine is in the dehydration mode, and whether the washing machine stops the dehydration program is determined according to the third capacitance value change, so as to prevent the washing drum from shaking violently and colliding with the washing machine box during the dehydration process.

[0081] The third capacitance value change amount is the maximum capacitance value change amount of the safety switch 30 within a certain time after the dehydration starts. This is because the deformation amount of the safety switch 30 caused by the shaking of the washing drum 20 after the dehydration starts will present a curve shape. At this time, selecting the maximum capacitance value change amount within a certain time after the dehydration starts can more accurately reflect the shaking amplitude of the washing drum 20 within the time. More specifically, the maximum capacitance value change amount of the safety switch 30 within 50 ms to 300 ms after the dehydration starts can be obtained, and the implementer can select it according to the own needs.

[0082] Further, in the embodiment of the present application, the step of determining whether the washing machine stops the dehydration program according to the third capacitance value change amount includes the steps of:

[0083] comparing the third capacitance value change amount with a third preset capacitance value change threshold value; if the third capacitance value change amount is greater than or equal to the third capacitance value change threshold value, controlling the washing machine to stop the dehydration, and controlling the washing machine to re- water, and then executing the leveling program to make the clothes evenly distributed before dehydration; if the third capacitance value change amount is less than the third preset capacitance value change threshold value, controlling the washing machine to continue to execute the dehydration program.

[0084] It can be understood that the third preset capacitance value change threshold value is mainly used to determine whether a serious clothes eccentricity condition occurs in the washing drum during the dehydration process. At this time, the washing machine will appear abnormal and violent vibration, produce serious noise, and even damage the washing machine, so the dehydration cannot be continued, and the washing drum needs to be re-watered, and then the clothes position is adjusted to make the clothes leveled before the dehydration.

[0085] In the embodiment of the present application, the step of controlling the washing machine to continue to execute the dehydration program includes the steps of:

[0086] calculating the difference between the third capacitance value change amount and the third preset capacitance value change threshold value;

[0087] determining whether the difference is within a preset difference range;

[0088] if the determination result is yes, adjusting the dehydration rotation speed of the washing drum in the washing machine to a first rotation speed;

[0089] if the determination result is no, adjusting the dehydration rotation speed of the washing drum in the washing machine to a second rotation speed;

[0090] The first rotation speed is less than the second rotation speed, and the second rotation speed does not exceed the maximum dehydration rotation speed allowed by the washing machine.

[0091] It can be understood that the spin speed of the washing machine in the present application is divided into two grades. When the vibration amplitude of the whole washing machine is large, the spin is carried out at a lower speed, i.e. the first speed. When the vibration amplitude of the whole washing machine is small, the spin is carried out at a higher speed, i.e. the second speed. The second speed does not exceed the maximum spin speed allowed by the washing machine. It can be understood that when the vibration amplitude of the whole washing machine is very small, the rod part 31 of the safety switch 30 is basically kept in the original vertical state, at which time the washing machine carries out spin at the second speed or full speed, so that the safety of the washing machine is taken into account while the spin efficiency is improved.

[0092] Please continue to refer to Figure 7 , Figure 7 The third flowchart of the control method of the washing machine provided by the embodiment of the present application. The control method of the washing machine provided by the embodiment of the present application further comprises the following steps:

[0093] 301, when the washing machine is not running, acquiring a fourth capacitance value change amount of the safety switch;

[0094] 302, if the fourth capacitance value change amount is greater than or equal to a fourth preset capacitance value change threshold, an indication of adjusting the bottom corner height of the washing machine or the placement position of the washing machine is issued.

[0095] It should be noted that when the ground on which the washing machine is placed is uneven, or the adjustment of the washing machine foot causes the washing machine to be in a non-horizontal state, at this time the washing machine will tilt towards the side of the ground, and the washing drum 20 will also tilt in the direction of the tilt of the washing machine, so that the inner wall surface of the through hole 211 touches the rod part 31 of the safety switch 30, causing the rod part 31 to deform and causing the capacitance value of the safety switch 30 to change. Among them, the greater the tilt angle of the washing machine, the greater the rod hitting amplitude of the washing drum 20, and the greater the capacitance value change amount of the safety switch 30.

[0096] In the embodiment of the present application, when the washing machine is not running, i.e. there is no laundry to be washed in the washing drum 20, and the washing drum 20 is in a stationary state, the fourth capacitance value change amount of the safety switch 30 is acquired, and the fourth capacitance value change amount is compared with the fourth preset capacitance value change threshold. If the fourth capacitance value change amount is greater than or equal to the fourth preset capacitance value change threshold, it indicates that the tilt angle of the washing drum 20 exceeds the preset requirement, i.e. the washing machine is in a non-horizontal state, then an indication of adjusting the bottom corner height of the washing machine or the placement position of the washing machine is issued, i.e. a warning prompt is issued, requesting to restore the washing machine to a horizontal state.

[0097] For example, the fourth preset capacitance value change threshold can be the capacitance value change amount of the safety switch 30 when the washing machine is tilted by 3°. It can also be understood that under normal placement of the washing machine, the tilt angle of the washing machine should be less than 3°.

[0098] Please continue to refer to Figure 1 The laundry machine provided by the embodiment of the present application further comprises a capacitive sensor 50 and a control unit 60, wherein the capacitive sensor 50 is electrically connected with the safety switch 30, and the capacitive sensor 50 is used for detecting the variation of the capacitance value of the safety switch 30; the control unit 60 is electrically connected with the capacitive sensor 50, and the control unit 60 is used for determining the working mode of the laundry machine, acquiring the variation of the capacitance value of the safety switch 30, and adjusting the working parameter of the laundry machine in the corresponding working mode according to the variation of the capacitance value.

[0099] In some embodiments, when the working mode of the laundry machine is the washing mode, the control unit 60 is further used for acquiring the first variation of the capacitance value of the safety switch 30; if the first variation of the capacitance value is greater than or equal to a first preset variation threshold of the capacitance value, the motor of the laundry machine is controlled to reduce the washing beat.

[0100] In some embodiments, when the working mode of the laundry machine is the draining mode, the control unit 60 is further used for acquiring the second variation of the capacitance value of the safety switch 30 after the draining is completed, and judging whether the laundry machine executes the dehydration program according to the second variation of the capacitance value.

[0101] In some embodiments, when the working mode of the laundry machine is the dehydration mode, the control unit 60 is further used for acquiring the third variation of the capacitance value of the safety switch 30, and judging whether the laundry machine stops the dehydration program according to the third variation of the capacitance value.

[0102] In some embodiments, when the laundry machine is not running, the control unit 60 is further used for acquiring the fourth variation of the capacitance value of the safety switch 30; if the fourth variation of the capacitance value is greater than or equal to a fourth preset variation threshold of the capacitance value, an indication of adjusting the bottom corner height of the laundry machine or the placement position of the laundry machine is issued.

[0103] In summary, the control method of the laundry machine and the laundry machine provided by the embodiment of the present application have the following advantages: since the rod part 31 of the safety switch 30 is inserted into the through hole 211 of the protruding part 21 arranged on the washing drum 20, the inner wall surface of the through hole 211 can touch the rod part 31 when the washing drum 20 shakes greatly in any direction, and the variation of the capacitance value of the safety switch 30 is caused, the working parameter of the laundry machine in the corresponding working mode can be adjusted according to the variation of the capacitance value, so as to avoid the collision between the washing drum 20 and the cabinet 10 of the laundry machine, thereby reducing the vibration and noise of the laundry machine and improving the user experience; meanwhile, since the variation of the capacitance value of the safety switch 30 can be caused when the washing drum 20 shakes greatly in any direction, the sensitivity of the safety switch 30 is improved, and the detection precision is high and the reliability is strong.

[0104] In the description of the present application, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features.

[0105] The control method of the washing machine and the washing machine provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manners and application ranges will be changed, and in summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A control method of a washing machine, characterized by, The washing machine comprises a washing drum and a safety switch, the washing drum is provided with a protruding part extending radially outward, the protruding part is provided with a through hole, a rod part of the safety switch is inserted into the through hole, when the washing drum shakes, an inner wall surface of the through hole touches the rod part, so that the rod part is deformed and causes a capacitance value of the safety switch to change; the control method comprises: determining a working mode of the washing machine, the working mode comprising a washing mode, a draining mode and a spinning mode; obtaining a capacitance value change amount of the safety switch; adjusting a working parameter of the washing machine in the corresponding working mode according to the capacitance value change amount.

2. The control method of a washing machine according to claim 1, characterized in that, The step of adjusting the working parameter of the washing machine in the corresponding working mode according to the capacitance value change amount comprises: when the working mode of the washing machine is the washing mode, obtaining a first capacitance value change amount of the safety switch; if the first capacitance value change amount is greater than or equal to a first preset capacitance value change threshold, controlling a motor of the washing machine to reduce a washing beat; when the working mode of the washing machine is the draining mode, obtaining a second capacitance value change amount of the safety switch after draining is completed, and judging whether the washing machine executes a spinning program according to the second capacitance value change amount; when the working mode of the washing machine is the spinning mode, obtaining a third capacitance value change amount of the safety switch, and judging whether the washing machine stops the spinning program according to the third capacitance value change amount.

3. The control method of the washing machine according to claim 2, characterized in that, The step of judging whether the washing machine executes the spinning program according to the second capacitance value change amount comprises: comparing the second capacitance value change amount with a second preset capacitance value change threshold; if the second capacitance value change amount is greater than or equal to the second preset capacitance value change threshold, controlling the washing machine to re-charge water and execute a leveling program; if the second capacitance value change amount is less than the second preset capacitance value change threshold, controlling the washing machine to enter the spinning program.

4. The control method of a washing machine according to claim 2, characterized in that, The step of judging whether the washing machine stops the spinning program according to the third capacitance value change amount comprises: comparing the third capacitance value change amount with a third preset capacitance value change threshold; if the third capacitance value change amount is greater than or equal to the third preset capacitance value change threshold, controlling the washing machine to stop the spinning program and execute the leveling program after re-charging water; if the third capacitance value change amount is less than the third preset capacitance value change threshold, controlling the washing machine to continue executing the spinning program.

5. The control method of the washing machine according to claim 4, characterized in that, The step of controlling the washing machine to continue executing the spinning program comprises: calculating a difference between the third capacitance value change amount and the third preset capacitance value change threshold; judging whether the difference is within a preset difference range; if the result of the judgment is yes, adjusting a spinning speed of the washing drum to a first speed; if the result of the judgment is no, adjusting the spinning speed of the washing drum to a second speed; wherein the first speed is less than the second speed, and the second speed does not exceed a maximum spinning speed of the washing machine.

6. The control method of a washing machine according to any one of claims 1 to 5, characterized in that, The control method of the washing machine further comprises: when the washing machine is not running, obtaining a fourth capacitance value change amount of the safety switch; If the fourth capacitance value change amount is greater than or equal to a fourth preset capacitance value change amount threshold, an instruction to adjust the bottom corner height of the washing machine or the placement position of the washing machine is issued.

7. A laundry machine characterized by The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine.

8. A laundry washing machine according to Claim 7, characterized in that The application relates to a washing machine.

9. A laundry washing machine according to Claim 7, characterized in that The application relates to a washing machine.

10. A laundry washing machine according to any one of the claims from 7 to 9, characterized in that, The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates to a washing machine. The application relates

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