Control method of clothes treatment equipment and clothes treatment equipment

By setting up a detection device in the clothing processing equipment to obtain the vibration amount and adjust the cylinder speed, the problems of equipment vibration intensity and noise are solved, and the smooth operation of the equipment and long-term use of parts are achieved.

CN119332456APending Publication Date: 2025-01-21QINGDAO HAIER WASHING ELECTRIC APPLIANCES CO LTD +1
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Patent Information

Application Number
CN202310886360.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-07-19
Publication Date
2025-01-21

AI Technical Summary

Technical Problem

During the washing process, existing clothing processing equipment causes overall vibration of the equipment due to the vibration of the cylinder, resulting in equipment displacement, noise increase and parts damage. The existing buffering device is difficult to effectively solve the vibration problems at high speeds or resonance frequency.

Method used

By arranging a detection device on the casing of the clothing processing equipment, the vibration amount of the door body relative to the casing is obtained, and the rotation speed of the cylinder is adjusted according to the vibration amount to reduce the vibration intensity of the equipment. Specific methods include using millimeter waves to detect the amount of vibration, adjusting the angular velocity and angular acceleration of the cylinder, and promptly judging and avoiding resonance phenomena.

Benefits of technology

It achieves precise control of the vibration of clothing processing equipment, reduces the vibration intensity and noise of the equipment, extends the service life of the equipment and parts, and improves the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a control method of clothes processing equipment and the clothes processing equipment, the clothes processing equipment comprises a barrel, a shell and a door body movably connected to the shell and used for sealing the barrel, a detection device is arranged on the shell, and the control method comprises the steps that the detection device is controlled to obtain the vibration quantity of the door body relative to the shell in the washing process; and the rotating speed of the cylinder body is adjusted to correspond to the vibration quantity. According to the clothes processing equipment, the vibration of the door body relative to the shell comes from the operation of the barrel, the vibration quantity of the door body can reflect the vibration intensity of the clothes processing equipment, the detection device is arranged on the shell to obtain the vibration quantity of the door body, and the rotating speed of the barrel is controlled to be adjusted according to the vibration quantity; according to the control method, the rotating speed of the barrel can be quickly adjusted by taking the vibration quantity as positive feedback, so that the vibration intensity of the clothes treatment equipment is reduced, the barrel is prevented from impacting the shell, the operation process is more stable, and the maintenance period and the service life of the equipment are prolonged.
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Description

Technical Field

[0001] The present invention belongs to the field of clothing processing equipment, and in particular, relates to a control method of clothing processing equipment and the clothing processing equipment. Background Art

[0002] In the present invention, "clothing processing equipment" refers to a general term for a type of household appliances that can perform washing, dehydration, drying and other programs, such as washing machines, integrated washing and drying machines, etc.

[0003] When a laundry processing device is performing a washing operation, the rotation of the drum often causes the entire device to vibrate, and in severe cases, the laundry processing device may shift. In the prior art, a mechanical buffer device is usually added to the base of the laundry processing device to alleviate the vibration of the drum. However, this technical solution can only reduce the impact force and noise generated by the vibration of the drum to a certain extent. When the drum speed is high or the vibration frequency of the drum is close to the resonance frequency of the laundry processing device, it will cause the device to vibrate more violently, and even cause damage to the equipment parts.

[0004] The Chinese invention patent with application number: 202110937726.8 discloses a washing machine and its vibration control method and electronic device. Among them, the vibration control method of the washing machine includes: responding to the speed increase instruction, increasing the rotation speed of the washing tub; in the process of speed increase of the washing tub, obtaining the vibration values ​​corresponding to the front and rear ends of the washing tub, respectively, and the vibration values ​​include the axial vibration value and the radial vibration value of the washing tub; according to the calculation of the axial vibration value and the radial vibration value, determining the eccentric position of the washing tub; performing vibration control on the washing tub corresponding to the eccentric position to prevent the washing tub from hitting the tub. The invention reduces the rate of hitting the tub by determining the eccentric position of the drum and then performing vibration control on the drum based on different eccentric positions.

[0005] However, during operation, since the positions of the clothes and washing liquid in the drum are constantly changing, the washing tub will swing in any direction and angle in the cavity of the clothing processing device as it rotates, resulting in the low accuracy of the vibration value obtained, and thus the eccentric position of the washing tub calculated from the vibration value is also not accurate. Controlling the vibration of the washing tub by this method can only reduce the rate of barrel collision.

[0006] In view of this, the present invention is proposed. Summary of the invention

[0007] The object of the present invention is to provide a control method for a clothes processing device, so as to achieve the purpose of accurately controlling the rotation speed of a drum and reducing the vibration intensity of the device.

[0008] Another object of the present invention is to provide a clothing processing device using the control method, so as to achieve the purpose of improving the running stability of the device and the service life of components, and eliminating impact noise to improve the user experience.

[0009] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0010] A control method for a clothing processing device, the clothing processing device comprises a drum, a shell and a door body movably connected to the shell for covering the drum, a detection device is provided on the shell, the detection device is controlled to obtain the vibration amount of the door body relative to the shell during the washing process, and the rotation speed of the drum is adjusted to correspond to the vibration amount.

[0011] Furthermore, obtaining the vibration amount includes: controlling the detection device to emit millimeter waves to the door body and obtaining the duration of the millimeter waves being reflected back to the detection device, and determining the vibration amount according to the duration.

[0012] Furthermore, the vibration amount includes a vibration amplitude W, a first threshold a is preset, and the vibration amplitude W is compared with the first threshold a. If the vibration amplitude W is greater than the first threshold a, the rotation speed of the cylinder is controlled to be reduced to reduce the vibration amplitude.

[0013] Furthermore, a second threshold value b smaller than the first threshold value a is preset, and the vibration amplitude W is compared with the first threshold value a and the second threshold value b. If the vibration amplitude W is within the interval from the second threshold value b to the first threshold value a, it is determined whether the cylinder is in the acceleration stage. If so, the cylinder is controlled to switch from the acceleration stage to the uniform speed stage.

[0014] Furthermore, if the vibration amplitude W is smaller than the second threshold value b, the rotation speed of the cylinder is adjusted to correspond to the vibration amplitude.

[0015] Furthermore, the vibration quantity also includes a vibration frequency N, and the resonance frequency M of the cylinder is obtained. If the cylinder is in an acceleration stage, the vibration frequency N is compared with the resonance frequency M. If the vibration frequency N is less than the resonance frequency M, the rotation speed of the cylinder is controlled to increase.

[0016] Furthermore, the rotational speed of the cylinder includes the angular velocity of the cylinder, and the change in the angular velocity of the cylinder is controlled to be proportional to the vibration amount.

[0017] Furthermore, the rotation speed of the cylinder includes the angular acceleration of the cylinder, and the angular acceleration of the cylinder is set to be linearly correlated with the magnitude of the vibration amount.

[0018] Furthermore, a plurality of continuous time durations are acquired, and an average value of the time durations is obtained through control, and the vibration amount is determined by the average value.

[0019] The present invention also provides a clothing processing device that operates using any of the above control methods.

[0020] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0021] 1. In this method, the vibration of the door body relative to the shell is caused by the operation of the drum. The vibration amount of the door body can reflect the vibration intensity of the clothing processing equipment. A detection device is arranged on the shell to obtain the vibration amount of the door body, and the rotation speed of the drum is adjusted according to the vibration amount, so that the control method can quickly adjust the rotation speed of the drum with the vibration amount as positive feedback, thereby reducing the vibration intensity of the clothing processing equipment, avoiding the drum from hitting the shell, ensuring a smoother operation process, and extending the maintenance period and service life of the equipment.

[0022] 2. The vibration amount of the door body is determined by the time it takes for the millimeter wave to be emitted and received by the detection device. The constant speed of the millimeter wave is utilized to ensure the accuracy of the obtained vibration amount, thereby ensuring that the rotation speed of the drum is accurately adjusted, effectively controlling the vibration intensity of the clothing processing equipment, and avoiding the phenomenon of drum collision.

[0023] 3. This method directly uses the vibration amplitude of the door body as the basis for adjusting the rotation speed of the cylinder, and utilizes the principle that the movement energy of the door body comes from the release and transfer of the cylinder, making the control logic simple and practical, and can quickly determine whether the equipment vibrates too much according to the vibration state of the door body and then make adjustments.

[0024] 4. Taking advantage of the fact that the vibration frequency of the door body is equal to that of the drum body, the vibration frequency of the door body, which is easy to obtain, is directly used to determine whether the equipment is close to the resonance range, which not only saves detection devices but also improves the accuracy of the data. At the same time, by increasing the acceleration to make the drum body quickly cross the resonance frequency, the clothing treatment equipment can quickly surpass the resonance range, eliminate the resonance phenomenon, reduce the loss of clothing treatment equipment, improve the stability of equipment operation and the service life of parts, and eliminate the impact noise to improve the user experience.

[0025] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0027] Figure 1is a flow chart of a control method of a clothes processing device of the present invention;

[0028] Figure 2 is a flow chart of another control method of a clothes processing device of the present invention;

[0029] Figure 3 is a flow chart of another control method of a clothes processing device of the present invention;

[0030] Figure 4 is a flow chart of another control method of a clothes processing device of the present invention;

[0031] Figure 5 is a flow chart of another control method of a clothes processing device of the present invention;

[0032] Figure 6 is a flow chart of another control method of a clothes processing device of the present invention;

[0033] Figure 7 It is a schematic diagram of a clothes processing device of the present invention.

[0034] Among them: 1. Shell; 2. Door body; 3. Detection device; 4. Hinge.

[0035] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, "clothing processing equipment" refers to a general term for a type of household appliances that can perform washing, dehydration, drying and other programs, such as washing machines, integrated washing and drying machines, etc.

[0040] As shown in FIG. 7 , in one embodiment of the present invention, a clothes processing device capable of detecting the vibration amount of a door body is introduced. The clothes processing device includes a drum and a shell. The drum is arranged inside the shell and is rotatably connected to the shell. The drum is used to hold and wash clothes.

[0041] The shell is also provided with a delivery port. The cylinder is arranged concentrically with the delivery port and its cylinder mouth faces the delivery port. A door body is also provided at the delivery port for sealing the cylinder body. The door body is movably connected to the shell. One end of the door body is connected to the shell through a hinge, and the other end is provided with a clamping structure and clamped on the shell. The door body is loosely connected to the shell through the clamping structure and can reciprocate relative to the shell with the hinge as the center.

[0042] The shell is also provided with a detection device which can emit millimeter waves toward the clamping structure to detect the vibration amount of the door body relative to the shell.

[0043] like Figure 1 As shown, in another embodiment of the present invention, a control method for a clothing processing device is introduced.

[0044] The control method includes: controlling the detection device to obtain the vibration amount of the door body relative to the shell during the washing process, and adjusting the rotation speed of the drum body to correspond to the vibration amount. The vibration amount includes the vibration frequency and the vibration amplitude. The rotation speed of the drum body includes the angular velocity and angular acceleration of the drum body.

[0045] For example, during the dehydration process, the vibration amount of the door body relative to the shell caused by vibration is obtained, and the rotation speed of the barrel is adjusted according to the vibration amount. The angular velocity and angular acceleration of the barrel can be controlled by obtaining the vibration frequency and amplitude of the door body.

[0046] Specifically, Figure 1 As shown, the control method of the laundry processing device includes the following steps:

[0047] S01 turns on the clothes processing device;

[0048] S02 controls the clothes processing equipment to enter the washing stage;

[0049] S03 controls the detection device to obtain the vibration amount of the door body relative to the shell;

[0050] S04 adjusts the rotation speed of the cylinder to correspond to the vibration amount;

[0051] S05 controls the laundry processing device to complete the washing stage at the adjusted rotation speed;

[0052] S06 turns off the laundry processing device.

[0053] In this embodiment, the vibration of the door body relative to the shell is caused by the operation of the drum. The vibration amount of the door body can reflect the vibration intensity of the clothing processing equipment. The detection device is arranged on the shell to obtain the vibration amount of the door body, and the rotation speed of the drum is adjusted according to the vibration amount. The control method can quickly adjust the rotation speed of the drum with the vibration amount as positive feedback, thereby reducing the vibration intensity of the clothing processing equipment, avoiding the drum from hitting the shell, ensuring a smoother operation process, and extending the maintenance period and service life of the equipment.

[0054] like Figure 2 As shown, in another embodiment of the present invention, a method for detecting vibration amount is introduced. A millimeter wave radar monitoring device is arranged on the housing of the clothing processing device. A certain structural space is reserved at the position corresponding to the millimeter wave radar monitoring device on the door body. The structural space is used for the millimeter wave radar detection device to transmit millimeter waves and receive reflected waves of millimeter waves.

[0055] Specifically, during the operation of the laundry processing device, after the millimeter wave radar detection device receives the reflected wave reflected by the door body, it calculates the time it takes for the detection device to send the millimeter wave to the door body and for the millimeter wave to be reflected back to the detection device, and then determines the vibration amount according to the time.

[0056] Specifically, Figure 2 As shown, the control method of the laundry processing device includes the following steps:

[0057] S01 turns on the clothes processing device;

[0058] S02 controls the clothes processing equipment to enter the washing stage;

[0059] S03 controls the detection device to emit millimeter waves to the door body and obtains the time length of time for the millimeter waves to be reflected back to the detection device;

[0060] S04 determines the vibration amount according to the duration;

[0061] S05 adjusting the rotation speed of the cylinder to correspond to the vibration amount;

[0062] S06 controls the laundry processing device to complete the washing stage at the adjusted speed;

[0063] S07 turns off the laundry processing device.

[0064] Simply, the millimeter wave radar detection device can be replaced by a proximity switch or a touch switch. The proximity switch or the touch switch is used to detect whether the door body has reached the maximum vibration amplitude. When the proximity switch or the touch switch is turned on, it is determined that the vibration amplitude of the door body has reached or exceeded the maximum value, and then the cylinder body is controlled to reduce the speed.

[0065] In this embodiment, the vibration amount of the door body is determined by the time it takes for the millimeter wave to be emitted and received by the detection device. The constant speed of the millimeter wave is utilized to ensure the accuracy of the obtained vibration amount, thereby ensuring that the rotation speed of the drum is accurately adjusted, effectively controlling the vibration intensity of the clothing processing equipment, and avoiding the phenomenon of drum impact.

[0066] like Figure 3 As shown, in another embodiment of the present invention, a control method for a clothes processing device is introduced. When the drum is in an acceleration process or a uniform speed process, the vibration intensity of the clothes processing device is predicted according to the real-time vibration amplitude of the door body and the maximum threshold value, and it is determined whether the drum continues to maintain the original operating state.

[0067] Specifically, a first threshold a is preset, the vibration amplitude W of the cylinder is obtained, and the vibration amplitude W is compared with the first threshold a. If the vibration amplitude W is greater than the first threshold a, the rotation speed of the cylinder is controlled to be reduced to reduce the vibration amplitude.

[0068] like Figure 3 As shown, the control method of the laundry processing device includes the following steps:

[0069] S01 turns on the clothes processing device;

[0070] S02 presets a first threshold value a;

[0071] S03 controls the clothes processing equipment to enter the washing stage;

[0072] S04 controls the detection device to emit millimeter waves to the door body and obtains the time length of time for the millimeter waves to be reflected back to the detection device;

[0073] S05 determines the vibration amplitude of the door body relative to the shell according to the duration;

[0074] S06 compares the vibration amplitude W with the first threshold a;

[0075] S071 If the vibration amplitude W is less than or equal to the first threshold a, control proceeds to step S081;

[0076] S072 If the vibration amplitude W is greater than the first threshold a, control proceeds to step S082;

[0077] S081 adjusts the rotation speed of the cylinder to correspond to the vibration amplitude;

[0078] S082 reduces the rotation speed of the cylinder to reduce the vibration amplitude;

[0079] S09 controls the laundry processing device to complete the washing stage at the adjusted rotation speed;

[0080] S10 turns off the laundry treating device.

[0081] In this embodiment, the vibration amplitude of the door body is directly used as the basis for adjusting the rotation speed of the cylinder body, and the principle that the kinetic energy of the door body originates from the release and transfer of the cylinder body is utilized, so that the control logic is simple and practical, and it can quickly determine whether the equipment vibrates too much according to the vibration state of the door body and then make adjustments.

[0082] like Figure 4 As shown, in another embodiment of the present invention, a control method for a clothes processing device is introduced. A target threshold value at which the drum can perform accelerated motion is set, and then it is determined whether the real-time vibration amplitude of the door body is between the target threshold value and the maximum threshold value. If the real-time vibration amplitude of the door body is between the target threshold value and the maximum threshold value, the control adjusts the drum body to a uniform speed operation state.

[0083] Specifically, a second threshold value b is preset that is smaller than the first threshold value a. The vibration amplitude W is compared with the first threshold value a and the second threshold value b. If the vibration amplitude W is within the interval from the second threshold value b to the first threshold value a, it is determined whether the cylinder is in the acceleration stage. If so, the cylinder is controlled to switch from the acceleration stage to the uniform speed stage.

[0084] like Figure 4 As shown, the control method of the laundry processing device includes the following steps:

[0085] S01 turns on the clothes processing device;

[0086] S02 presets a first threshold value a and a second threshold value b, and b<a;

[0087] S03 controls the clothes processing equipment to enter the washing stage;

[0088] S04 controls the detection device to emit millimeter waves to the door body and obtains the time length of time for the millimeter waves to be reflected back to the detection device;

[0089] S05 determines the vibration amplitude W of the door body relative to the housing according to the duration;

[0090] S06 compares the vibration amplitude W with the first threshold a and the second threshold b;

[0091] S071 If the vibration amplitude W is within the interval from the second threshold value b to the first threshold value a, the control proceeds to step S08;

[0092] S072: If the vibration amplitude W does not fall within the interval from the second threshold value b to the first threshold value a, control proceeds to step S0721;

[0093] S0721 controls to reduce the rotation speed of the cylinder, and then enters step S12;

[0094] S08 determines whether the cylinder is in the acceleration stage;

[0095] S091 If yes, control proceeds to step S10;

[0096] If S092 is no, control proceeds to step S11;

[0097] S10 controls the cylinder to switch to the uniform speed stage;

[0098] S11 adjusts the rotation speed of the cylinder to correspond to the vibration amplitude;

[0099] S12 controls the laundry processing device to complete the washing stage at the adjusted speed;

[0100] S13 turns off the laundry processing device.

[0101] like Figure 5 As shown, in another embodiment of the present invention, a control method for a clothes processing device is introduced. A target threshold value at which the drum can perform accelerated motion is set, and then it is determined whether the real-time vibration amplitude of the door body is less than the target threshold value. If the real-time vibration amplitude of the door body is less than the target threshold value, the rotation speed of the drum body is controlled to correspond to the vibration amplitude.

[0102] Specifically, the vibration amplitude W is compared with the second threshold value b. If the vibration amplitude W is smaller than the second threshold value b, the rotation speed of the cylinder is adjusted to correspond to the vibration amplitude.

[0103] like Figure 5 As shown, the control method of the laundry processing device includes the following steps:

[0104] S01 turns on the clothes processing device;

[0105] S02 presets a first threshold value a and a second threshold value b, and b<a;

[0106] S03 controls the clothes processing equipment to enter the washing stage;

[0107] S04 controls the detection device to emit millimeter waves to the door body and obtains the time length of time for the millimeter waves to be reflected back to the detection device;

[0108] S05 determines the vibration amplitude W of the door body relative to the housing according to the duration;

[0109] S06 compares the vibration amplitude W with the first threshold a and the second threshold b;

[0110] S071 If the vibration amplitude W is within the interval from the second threshold value b to the first threshold value a, the control proceeds to step S08;

[0111] S072: If the vibration amplitude W does not fall within the interval from the second threshold value b to the first threshold value a, control proceeds to step S073;

[0112] S073 compares the vibration amplitude W with the second threshold value b;

[0113] S0741 If the vibration amplitude W is less than the second threshold value b, the control proceeds to step S11;

[0114] S0742 If the vibration amplitude W is greater than or equal to the second threshold value b, the rotation speed of the cylinder is controlled to be reduced, and then the process goes to step S12;

[0115] S08 determines whether the cylinder is in the acceleration stage;

[0116] S091 If yes, control proceeds to step S10;

[0117] If S092 is no, control proceeds to step S11;

[0118] S10 controls the cylinder to switch to the uniform speed stage;

[0119] S11 adjusts the rotation speed of the cylinder to correspond to the vibration amplitude;

[0120] S12 controls the laundry processing device to complete the washing stage at the adjusted speed;

[0121] S13 turns off the laundry processing device.

[0122] like Figure 6 As shown, in another embodiment of the present invention, a control method for a clothing processing device is introduced. The rotation frequency value of the drum can be directly obtained by the inverse of the rotation speed of the drum. During the operation of the clothing processing device, the vibration frequency of the door body is consistent with the rotation frequency value of the drum. When the rotation speed of the drum is increased, the vibration frequency of the door body also increases. The vibration frequency of the door body is close to the resonant frequency of the drum, that is, the rotation frequency of the drum is close to the resonant frequency of the drum, which will cause the clothing processing device to produce a violent resonance phenomenon.

[0123] Therefore, in the process of increasing the rotation speed of the drum, the vibration frequency range that is prone to cause resonance can be quickly crossed by increasing the acceleration.

[0124] Specifically, the vibration quantity also includes a vibration frequency N, and the resonance frequency M of the cylinder is obtained. If the cylinder is in an acceleration stage, the vibration frequency N is compared with the resonance frequency M. If the vibration frequency N is less than the resonance frequency M, the rotation speed of the cylinder is controlled to increase.

[0125] Specifically, Figure 6 As shown, the control method of the laundry processing device includes the following steps:

[0126] S01 turns on the clothes processing device;

[0127] S02 presets a first threshold value a and a second threshold value b, and b<a;

[0128] S03 controls the clothes processing equipment to enter the washing stage;

[0129] S04 controls the detection device to emit millimeter waves to the door body and obtains the time length of time for the millimeter waves to be reflected back to the detection device;

[0130] S05 determines the vibration amplitude W and vibration frequency N of the door body relative to the shell according to the duration;

[0131] S06 obtains the resonance frequency M of the cylinder;

[0132] S07 compares the vibration amplitude W with the first threshold a and the second threshold b;

[0133] S081 If the vibration amplitude W is within the interval from the second threshold value b to the first threshold value a, the control proceeds to step S09;

[0134] S082: If the vibration amplitude W does not fall within the interval from the second threshold value b to the first threshold value a, control proceeds to step S083;

[0135] S083 compares the vibration amplitude W with the second threshold b;

[0136] S0841 If the vibration amplitude W is less than the second threshold value b, the control proceeds to step S13;

[0137] S0842 If the vibration amplitude W is greater than or equal to the second threshold value b, the rotation speed of the cylinder is controlled to be reduced, and then the process goes to step S14;

[0138] S09 determines whether the cylinder is in the acceleration stage;

[0139] If yes in step S101, control proceeds to step S11;

[0140] If S102 is no, control proceeds to step S12;

[0141] S11 compares the vibration frequency N with the resonance frequency M;

[0142] S121 If the vibration frequency N is greater than or equal to the resonance frequency M, the control proceeds to step S13;

[0143] S122: If the vibration frequency N is less than the resonance frequency M, the rotation speed of the cylinder is increased, and then the process goes to step S14;

[0144] S13 adjusts the rotation speed of the cylinder to correspond to the vibration amplitude;

[0145] S14 controls the laundry processing device to complete the washing stage at the adjusted speed;

[0146] S15 turns off the laundry processing device.

[0147] In this embodiment, the vibration frequency of the door body is equal to the vibration frequency of the drum body, and the vibration frequency of the door body, which is easy to obtain, is used to directly determine whether the device is close to the resonance range, which not only saves the detection device but also improves the accuracy of the data. At the same time, by increasing the acceleration to make the drum body quickly cross the resonance frequency, the clothing treatment device can quickly surpass the resonance range, eliminate the resonance phenomenon, reduce the loss of the clothing treatment device, improve the stability of the equipment operation and the service life of the parts, and eliminate the impact noise to improve the user experience.

[0148] like Figure 7 As shown, in another embodiment of the present invention, a control method for a laundry processing device is introduced. The rotation speed of the drum includes the angular velocity of the drum. In the process of adjusting the rotation speed of the drum, the change amount of the angular velocity of the drum can be controlled to be proportional to the vibration amount.

[0149] In another embodiment, the rotation speed of the cylinder also includes the angular acceleration of the cylinder. In the process of adjusting the rotation speed of the cylinder, the angular acceleration of the cylinder is set to be linearly correlated with the magnitude of the vibration amount.

[0150] In another embodiment, calculating the time length from when the detection device emits a millimeter wave to the door body to when the millimeter wave is reflected back to the detection device includes: obtaining a plurality of consecutive time lengths, controlling to obtain an average of the time lengths, and determining the vibration amount by the average.

[0151] In one embodiment of the present invention, a laundry processing device is operated using the control method in any of the above embodiments. The laundry processing device includes a drum and a shell. The drum is arranged inside the shell and is rotatably connected to the shell. The drum is used to hold and wash laundry.

[0152] The shell is also provided with a delivery port. The cylinder is arranged concentrically with the delivery port and its cylinder mouth faces the delivery port. A door body is also provided at the delivery port for sealing the cylinder body. The door body is movably connected to the shell. One end of the door body is connected to the shell through a hinge, and the other end is provided with a clamping structure and clamped on the shell. The door body is loosely connected to the shell through the clamping structure and can reciprocate relative to the shell with the hinge as the center.

[0153] The shell is also provided with a detection device which can emit millimeter waves toward the clamping structure to detect the vibration amount of the door body relative to the shell.

[0154] In this embodiment, a detection device for detecting the vibration of the door body is provided on the shell, thereby improving the smoothness of the operation of the clothing processing equipment and the service life of the components in the clothing processing equipment, and can also eliminate the impact noise during the operation of the drum, thereby improving the user experience of using the clothing processing equipment.

[0155] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A control method for a clothes processing device, the clothes processing device comprises a drum, a shell and a door body movably connected to the shell for covering the drum, and a detection device is provided on the shell, characterized in that: The control detection device obtains the vibration amount of the door body relative to the shell body during the washing process, and adjusts the rotation speed of the drum body to correspond to the vibration amount.

2. A control method for a clothes processing device according to claim 1, characterized in that: The obtaining of the vibration amount includes: controlling the detection device to emit millimeter waves to the door body and obtaining the duration of the millimeter waves being reflected back to the detection device, and determining the vibration amount according to the duration.

3. A control method for a clothes processing device according to claim 1 or 2, characterized in that: The vibration amount includes a vibration amplitude W. A first threshold a is preset. The vibration amplitude W is compared with the first threshold a. If the vibration amplitude W is greater than the first threshold a, the rotation speed of the cylinder is controlled to be reduced to reduce the vibration amplitude.

4. A control method for a clothes processing device according to claim 3, characterized in that: A second threshold value b smaller than the first threshold value a is preset, and the vibration amplitude W is compared with the first threshold value a and the second threshold value b. If the vibration amplitude W is within the interval from the second threshold value b to the first threshold value a, it is determined whether the cylinder is in the acceleration stage. If so, the cylinder is controlled to switch from the acceleration stage to the uniform speed stage.

5. The control method of a clothes processing device according to claim 4, characterized in that: If the vibration amplitude W is smaller than the second threshold value b, the rotation speed of the cylinder is adjusted to correspond to the vibration amplitude.

6. The control method of a clothes processing device according to claim 3, characterized in that: The vibration quantity also includes a vibration frequency N, and the resonance frequency M of the cylinder is obtained. If the cylinder is in an acceleration stage, the vibration frequency N is compared with the resonance frequency M. If the vibration frequency N is less than the resonance frequency M, the rotation speed of the cylinder is controlled to increase.

7. A control method for a clothes processing device according to any one of claims 1 to 6, characterized in that: The rotation speed of the cylinder includes the angular velocity of the cylinder, and the change in the angular velocity of the cylinder is controlled to be proportional to the vibration amount.

8. The control method of a clothes processing device according to claim 7, characterized in that: The rotation speed of the cylinder includes the angular acceleration of the cylinder, and the angular acceleration of the cylinder is set to be linearly correlated with the magnitude of the vibration amount.

9. The control method of a clothes processing device according to claim 2, characterized in that: A plurality of continuous time durations are acquired, an average value of the time durations is obtained through control, and the vibration amount is determined according to the average value.

10. A clothes processing device, characterized in that: The control method according to any one of claims 1 to 9 is adopted for operation.

Citation Information

Patent Citations

  • Washing machine and vibration control method thereof, and electronic equipment

    CN113668188B