Method for predicting eccentricity, dehydration method, clothing processing device and storage medium

Abstract

The embodiments of the present application provide a method for predicting eccentricity, a method for dehydration, a clothing processing device, and a storage medium. The method for predicting eccentricity includes: obtaining an actual load; obtaining a first calibration relationship between the load and the amplitude ratio, the amplitude ratio being the ratio between the high-speed amplitude of the drum system when it runs at a high speed and tends to be stable and the resonant amplitude when it runs at a resonant speed under the same load, the high speed being greater than the resonant speed; determining a specific amplitude ratio corresponding to the actual load based on the actual load and the first calibration relationship; obtaining a specific resonant amplitude under the actual load; determining a specific high-speed amplitude under the actual load based on the specific amplitude ratio and the specific resonant amplitude; obtaining a second calibration relationship between the eccentricity and the high-speed amplitude; determining a specific high-speed eccentricity under the actual load based on the specific high-speed amplitude and the second calibration relationship. Eccentricity distribution can be performed in advance to ensure protection of the machine and reduce noise during high-speed dehydration.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a method for predicting eccentricity, a dehydration method, a clothing processing device, and a storage medium. Background Art

[0002] When the clothes processing equipment is dehydrating, eccentricity will occur due to uneven load distribution. When the eccentricity is too large, a large centrifugal force will be generated, which will damage the mechanical structure of the clothes processing equipment and cause high-radiation noise and vibration. Summary of the Invention

[0003] An object of the embodiments of the present invention is to provide a method for predicting eccentricity, a dehydration method, a clothes processing device, and a storage medium.

[0004] An embodiment of the present invention provides a method for predicting eccentricity of a drum system in a clothes processing device, comprising:

[0005] Get the actual load;

[0006] Obtaining a first calibration relationship between the load and the amplitude ratio, wherein the amplitude ratio is a ratio of the high speed amplitude of the drum system when it is running at a high speed and tending to be stable to the resonant amplitude of the drum system when it is running at a resonant speed under the same load, wherein the high speed is greater than the resonant speed;

[0007] determining a specific amplitude ratio corresponding to the actual load according to the actual load and the first calibration relationship;

[0008] Obtain the specific resonance amplitude under actual load;

[0009] Determine the specific high speed amplitude under actual load according to the specific amplitude ratio and the specific resonance amplitude;

[0010] obtaining a second calibration relationship between the eccentricity and the high-speed amplitude;

[0011] The specific high-speed eccentricity under actual load is determined according to the specific high-speed amplitude and the second calibration relationship.

[0012] Optionally, obtaining the first calibration relationship includes: obtaining the high-speed amplitude and resonance amplitude under different loads, and determining the ratio of the former to the latter as the amplitude ratio corresponding to the different loads; and determining the mapping relationship between different loads M and the corresponding amplitude ratios as the first calibration relationship.

[0013] Optionally, obtaining the second calibration relationship includes: obtaining high-speed amplitudes under different eccentricities; and determining a mapping relationship between different eccentricities and corresponding high-speed amplitudes as the second calibration relationship.

[0014] An embodiment of the present invention also provides a clothing processing device, which includes a drum system, a processor and a memory. The memory stores a computer program that can be run on the processor. When the computer program is executed by the processor, a method for predicting the eccentricity of the drum system in the clothing processing device is implemented.

[0015] An embodiment of the present invention further provides a computer-readable storage medium storing a computer program, which, when executed, implements a method for predicting eccentricity of a drum system in a laundry processing device.

[0016] An embodiment of the present invention also provides another method for dehydrating clothes using a drum system of a clothes processing device, comprising:

[0017] a. Obtaining the actual load and the first calibration relationship between the load and the amplitude ratio, wherein the amplitude ratio is the ratio of the high speed amplitude after the drum system stabilizes at high speed under the same load to the resonant amplitude when running at the resonant speed, the high speed is greater than the resonant speed;

[0018] b. Determine a specific amplitude ratio corresponding to the actual load according to the actual load and the first calibration relationship;

[0019] c. Obtain the specific resonance amplitude under actual load;

[0020] d. Determine the specific high speed amplitude A1 under the actual load based on the specific amplitude ratio and the specific resonance amplitude;

[0021] e. Obtaining a second calibration relationship between the eccentricity and the high speed amplitude;

[0022] f. Determine the specific high-speed eccentricity under the actual load according to the specific high-speed amplitude and the second calibration relationship;

[0023] g. Get the eccentricity threshold;

[0024] h. Determine whether the specific high-speed eccentricity is less than or equal to the eccentricity threshold. If so, increase the speed to a high speed for dehydration. If not, reduce the speed to change the load distribution and repeat steps c to h.

[0025] Optionally, reducing the rotation speed to change the load distribution includes reducing the rotation speed to shake the load loose, and then increasing the rotation speed to reattach the load to the drum.

[0026] Optionally, obtaining the first calibration relationship includes: obtaining the high-speed amplitude and resonance amplitude under different loads, and determining the ratio of the former to the latter as the amplitude ratio corresponding to the different loads; and determining the mapping relationship between different loads and the corresponding amplitude ratios as the first calibration relationship.

[0027] Optionally, obtaining the second calibration relationship includes: obtaining high-speed amplitudes under different eccentricities; and determining a mapping relationship between different eccentricities and corresponding high-speed amplitudes as the second calibration relationship.

[0028] Optionally, the load capacity is the mass of the load in the clothes treating apparatus.

[0029] Optionally, the high-speed amplitude is the amplitude generated by the drum system during a high-speed dehydration process.

[0030] Optionally, the resonance amplitude is the amplitude generated when the drum system resonates during the dehydration process.

[0031] Optionally, the eccentricity is an unbalanced mass formed by uneven load distribution during the dehydration process.

[0032] Optionally, the clothes treating apparatus includes a drum-type clothes treating apparatus.

[0033] Optionally, the resonant rotation speed of the drum-type clothes treating apparatus is greater than or equal to 150 revolutions per minute and less than or equal to 300 revolutions per minute.

[0034] Optionally, the high rotation speed of the drum-type clothes processing apparatus during the dehydration process is greater than or equal to 700 revolutions per minute.

[0035] An embodiment of the present invention also provides another clothing processing device, which includes a drum system, a processor and a memory, wherein the memory stores a computer program that can be run on the processor, and when the computer program is executed by the processor, a method for dehydrating the clothing through the drum system of the clothing processing device is implemented.

[0036] Optionally, a vibration sensor is further included, which is suitable for detecting the amplitude of the drum system during the dehydration process.

[0037] An embodiment of the present invention also provides another computer-readable storage medium, which stores a computer program. When the computer program is executed, a method for dehydrating clothes by a drum system of a clothes processing device is implemented.

[0038] Compared with the prior art, the technical solution of the embodiment of the present invention has beneficial effects.

[0039] For example, the eccentricity during high-speed dehydration can be predicted by detecting the resonance amplitude of the drum system during dehydration, thereby judging the operating status of the clothes processing device.

[0040] For example, it can determine whether the speed can be increased for high-speed spin drying. If the speed cannot be increased for high-speed spin drying, the speed can be reduced to redistribute the load until high-speed spin drying can be performed. In this way, eccentric distribution can be performed in advance to ensure that the machine is protected and noise is reduced during high-speed spin drying.

[0041] For another example, the existing sensors of the clothing processing equipment can be used to collect relevant signals, thereby eliminating the need to modify the equipment and increasing the modification cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a flow chart of a method for predicting eccentricity of a drum system in a clothes processing device provided in an embodiment of the present invention;

[0043] Figure 2 Schematic diagram showing the variation of the normalized amplitude of the drum system with the speed ratio under the same load provided in an embodiment of the present invention; wherein the abscissa represents the speed ratio between the speed of the inner drum and the resonant speed of the drum system, the ordinate represents the normalized amplitude of the drum system, curve 1 represents the variation of the normalized amplitude of the drum system with the speed ratio, and the dotted line 2 represents the amplitude ratio k of the drum system, which is the value at which the normalized amplitude approaches stability at high speeds;

[0044] Figure 3 is a structural schematic diagram of a clothes processing device provided in an embodiment of the present invention;

[0045] Figure 4 4 is a flow chart of a method for dehydrating clothes through a drum system of a clothes processing device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0046] In order to make the purpose, features and beneficial effects of the embodiments of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0047] Example 1

[0048] Figure 1 This is a flow chart of the method for predicting the eccentricity of the drum system in the clothes processing device provided in this embodiment.

[0049] like Figure 1 As shown, the method S10 for predicting the eccentricity of the drum system in the clothes processing device provided in this embodiment includes:

[0050] S11. Get the actual load M1;

[0051] S12. Obtain a first calibration relationship between the load M and the amplitude ratio k, wherein the amplitude ratio k is the high speed amplitude A of the drum system when it is running at a high speed and tends to be stable and the resonant amplitude A when it is running at a resonant speed under the same load M. max The ratio between them is that the high speed is greater than the resonant speed;

[0052] S13. Determine the specific amplitude ratio k1 corresponding to the actual load M1 according to the actual load M1 and the first calibration relationship;

[0053] S14. Obtain the specific resonance amplitude A under the actual load M1 max1 ;

[0054] S15. According to the specific amplitude ratio k1 and the specific resonance amplitude A max1 Determine the specific high speed amplitude A1 under the actual load M1;

[0055] S16. Obtaining a second calibration relationship between the eccentricity m and the high-speed amplitude A;

[0056] S17 . Determine the specific high-speed eccentricity m1 under the actual load M1 according to the specific high-speed amplitude A1 and the second calibration relationship.

[0057] In one or more specific examples, the clothes treating apparatus provided by this embodiment may include a drum-type clothes treating apparatus.

[0058] Specifically, the laundry processing device may include a housing, a drum system, and a drive motor. The drum system is disposed within the housing and includes an outer drum disposed within the housing, an inner drum rotatably disposed within the outer drum, a vibration damper disposed at the bottom of the outer drum, and a vibration damping spring connected between the outer drum and the housing. The drive motor is also disposed within the housing and connected to the inner drum, and is adapted to drive the inner drum to rotate.

[0059] The laundry treating apparatus may further include an amplitude sensor connected to the drum system, adapted to detect the amplitude of the drum system.

[0060] In the technical solution provided in this embodiment, the specific implementation of the clothing processing device and its components can be achieved by conventional technical means in the field, and will not be described in detail here.

[0061] In step S11, the actual load M1 is the actual mass of the load to be dehydrated within the clothing processing device. The actual load M1 can be obtained using conventional techniques in the art. For example, it can be acquired using a weighing module within the clothing processing device, calculated from a signal indicating the power consumed by the load, or converted from the relationship between the motor current and the corresponding load when driving loads of varying load capacities.

[0062] In step S12, obtaining the first calibration relationship includes: obtaining the high speed amplitude A and the resonance amplitude A under different loads M max The ratio of the former to the latter is determined as the amplitude ratio k corresponding to different load amounts M; and the mapping relationship between different load amounts M and the corresponding amplitude ratio k is determined as the first calibration relationship.

[0063] In step S12 , the first calibration relationship is a mapping relationship between the load M and the amplitude ratio k. For each different load M, there is a unique amplitude ratio k corresponding thereto.

[0064] In step S12, the amplitude ratio k is the high speed amplitude A of the drum system when it runs at a high speed and tends to be stable and the resonant amplitude A when it runs at a resonant speed under the same load M. max The ratio between them is , and the high speed is greater than the resonant speed.

[0065] When a laundry machine dehydrates a load within its drum system, the inner drum rotates at a constant speed, causing the drum system to vibrate. When the drum system resonates, the speed at which the inner drum rotates is the resonant speed of the drum system. The drum system has its maximum vibration amplitude at the resonant speed, known as the resonance amplitude Amax. The high-speed amplitude A of the drum system is the amplitude generated during the high-speed dehydration process.

[0066] For a clothing processing device with a processing capacity greater than or equal to 5 kg and less than or equal to 10 kg, in one or more specific examples, the resonant frequency of its drum system is within the range of greater than or equal to 2.5 Hz and less than or equal to 5 Hz, the resonant speed of its drum system is within the range of greater than or equal to 150 rpm and less than or equal to 300 rpm, and the high speed used during dehydration is greater than the resonant speed of the aforementioned drum system. For example, the high speed used during dehydration can be greater than or equal to 700 rpm.

[0067] In one or more specific examples, the mapping relationship between the load M and the amplitude ratio k can be obtained through experimental calibration. Specifically, the mapping relationship between the load M and the amplitude ratio k can be obtained by calibrating the amplitude ratio k under different loads M. The load M can be obtained using the method for obtaining the actual load M1 in step S11, and the amplitudes of the same load M at different speeds can be acquired using an amplitude sensor.

[0068] In the technical solution provided in this embodiment, for a specific laundry processing device, the amplitude ratio k is a certain value under the same load M. For different laundry processing devices and / or different loads, the amplitude ratio k and the first calibration relationship of the drum system need to be recalibrated.

[0069] Figure 2Figure 1 is a schematic diagram showing the variation of the normalized amplitude of the drum system with the speed ratio under the same load provided in this embodiment. The horizontal axis represents the speed ratio between the inner drum speed and the resonant speed of the drum system, and the vertical axis represents the normalized amplitude of the drum system. Curve 1 shows the variation of the normalized amplitude of the drum system with speed, and the dashed line 2 represents the amplitude ratio k of the drum system, which is the value at which the normalized amplitude approaches stability at high speeds.

[0070] For ease of understanding and calculation, Figure 2 The "normalized amplitude" is used, which represents the ratio of the amplitude of the drum system to its resonant amplitude.

[0071] like Figure 2 As shown, for a specific clothes processing device, under the same load M, the normalized amplitude of its drum system presents a curve variation relationship with the speed ratio of the inner drum, which first increases and then decreases.

[0072] When the rotation speed of the inner drum is less than the resonant rotation speed of the roller system, the normalized amplitude of the roller system increases with the increase of the rotation speed of the inner drum.

[0073] When the rotation speed of the inner drum is close to the resonant rotation speed of the drum system, that is, when the ratio between the rotation speed of the inner drum and the resonant rotation speed of the drum system is close to 1, the normalized amplitude of the drum system reaches its maximum value. At this time, the drum system resonates and the amplitude is maximum.

[0074] When the speed of the inner drum is greater than the resonant speed of the drum system, the normalized amplitude of the drum system decreases with the increase of the inner drum speed, and tends to the amplitude ratio k of the drum system when the speed exceeds a certain value (i.e., in the high speed range).

[0075] Continue to refer to Figure 2 For a specific laundry processing device, under the same load M, the amplitude ratio k of its drum system does not change with the speed of the inner drum and remains at a certain value. Figure 2 In the example shown, the amplitude ratio k of the drum system is maintained at 0.5. Therefore, when the speed of the inner drum is greater than the resonant speed of the drum system and exceeds a certain speed (i.e., in the high speed range), the high speed amplitude A of the drum system tends to stabilize and remain at its resonant amplitude A. max 0.5 times of.

[0076] In step S13 , a specific amplitude ratio k1 corresponding to the actual load M1 may be determined according to a one-to-one mapping relationship between the load M and the amplitude ratio k.

[0077] In step S14, the specific resonance amplitude A under the actual load M1 can be obtained by adjusting the rotation speed of the inner drum. max1 Specific resonance amplitude A under actual load M1 at different speedsmax1 , can be obtained through the amplitude sensor of the clothing processing equipment. Specifically, under the actual load M1, the drum system can be made to resonate by adjusting the speed of the inner drum, and the amplitude of the drum system when it resonates can be obtained through the amplitude sensor. This amplitude is the specific resonance amplitude A under the actual load M1. max1 .

[0078] Generally, the load will affect the resonant speed of the drum system. Different loads will result in different resonant speeds of the drum system. The resonant speed is within a certain range. Therefore, in a specific implementation, the amplitude sensor can be used to monitor the amplitude change process of the drum system at different speeds, and when the amplitude begins to decrease, it is determined that resonance has occurred. The speed and amplitude when resonance occurs are the resonant speed and resonance amplitude A of the drum system. max Alternatively, when the speed of the inner drum is within the resonance speed range, the maximum amplitude of the drum system can be monitored, and the maximum amplitude is the resonance amplitude A of the drum system. max .

[0079] In step S15, the specific amplitude ratio k1 obtained in step S13 and the specific resonance amplitude A obtained in step S14 can be used to obtain the resonance amplitude. max1 Determine the specific high speed amplitude A1 under the actual load M1. Specifically, A1 = k1 * A max1 .

[0080] In step S16, obtaining the second calibration relationship includes: obtaining the high-speed amplitude A under different eccentricities m; and determining the mapping relationship between different eccentricities m and the corresponding high-speed amplitude A as the second calibration relationship.

[0081] In step S16, the eccentricity m is the unbalanced mass generated due to uneven load distribution during the dehydration process.

[0082] The eccentricity of the load can generate a certain centrifugal force, causing the inner cylinder to vibrate, which is then transmitted to the outer cylinder, shock absorber and shock absorber spring. The larger the eccentricity m, the greater the centrifugal force formula f = mω. 2 r, the greater the centrifugal force it generates. In the case of a large centrifugal force, the mechanical strength of the clothes processing equipment, especially the drum system, is not enough, which will cause damage.

[0083] In step S16, the second calibration relationship is a mapping relationship between the eccentricity m and the high-speed amplitude A. Under the same load M, for each different eccentricity m, there is a unique high-speed amplitude A corresponding thereto.

[0084] In some examples, the mapping relationship between eccentricity m and high-speed amplitude A can be obtained through experimental calibration. Specifically, different masses can be placed in the inner cylinder, driven to rotate at a high speed, and the amplitudes of the different masses at high speed can be measured using an amplitude sensor. In this case, no load is placed in the inner cylinder. The masses of the different masses represent different eccentricities m, and the amplitudes of the different masses at high speed are the high-speed amplitudes A corresponding to the eccentricity m.

[0085] In other examples, for a specific laundry processing device, under the same load M, the high-speed amplitude A of the drum system and the eccentricity m have a linear relationship, that is, the second calibration relationship can be expressed by a linear relationship. For example, the second calibration relationship can be expressed as A = C1*m+C0, where C1 and C0 are the slope and intercept of the line corresponding to the linear relationship, respectively. The eccentricity m and high-speed amplitude A can be obtained through experiments.

[0086] In step S17 , the specific high-speed eccentricity m1 corresponding to the specific high-speed amplitude A1 may be determined based on the one-to-one mapping relationship between the eccentricity m and the high-speed amplitude A.

[0087] The execution sequence of the steps S10 of the method for predicting the eccentricity of the drum system in the laundry processing apparatus is merely an example, and is not intended to limit the steps of the method for predicting the eccentricity of the drum system in the laundry processing apparatus.

[0088] The first calibration relationship and the second calibration relationship provided in this embodiment can be pre-calibrated before executing the method for predicting the eccentricity of the drum system in the clothes processing device.

[0089] The technical solution provided in this embodiment can determine the operating status of a laundry processing device by predicting the eccentricity of the drum system within the device. Furthermore, corresponding operations or maintenance can be performed based on the determined operating status. For example, if the predicted eccentricity is greater than a preset value, maintenance measures can be taken to reduce the eccentricity of the laundry processing device. Otherwise, the laundry processing device can operate normally.

[0090] The technical solution provided in this embodiment can utilize the existing sensors of the clothing processing equipment to collect relevant signals, thereby eliminating the need to modify the equipment and not increasing the modification cost.

[0091] This embodiment also provides a clothes processing device.

[0092] In one or more specific examples, the clothes treating apparatus includes a drum-type clothes treating apparatus.

[0093] Figure 3 Schematic diagram of the structure of the clothing processing device provided in this embodiment.

[0094] like Figure 3 As shown, the laundry processing apparatus 100 may include a housing 110, a drum system 120, and a drive motor 130. The drum system 120 is disposed within the housing 110 and includes an outer drum 121 disposed within the housing 110, an inner drum 122 rotatably disposed within the outer drum 121, a vibration damper 123 disposed at the bottom of the outer drum 121, and a vibration damping spring 124 connected between the outer drum 121 and the housing 110. The drive motor 130 is also disposed within the housing 110 and connected to the inner drum 122, and is adapted to drive the inner drum 122 to rotate.

[0095] In one or more specific examples, the vibration absorber 123 may be disposed between the outer bottom wall of the outer cylinder 121 and the inner bottom wall of the box body 110 .

[0096] In other specific examples, two groups of damping springs 124 may be provided. One group is located at the upper left of the outer tube 121, and the other group is located at the upper right of the outer tube 121. The damping spring 124 located at the upper left of the outer tube 121 includes an upper left end and a lower right end. Its lower right end is connected to the upper left end of the outer tube 121, and its upper left end is connected to the left inner wall of the housing 110. The damping spring 124 located at the upper right of the outer tube 121 includes an upper right end and a lower left end. Its lower left end is connected to the upper right end of the outer tube 121, and its upper right end is connected to the right inner wall of the housing 110.

[0097] The laundry treating apparatus 100 may further include an amplitude sensor (not shown) connected to the drum system 120 , which is adapted to detect the amplitude of the drum system 120 .

[0098] In one or more specific examples, an amplitude sensor may be mounted on the motor 130 .

[0099] The laundry processing device 100 provided in this embodiment further includes a processor and a memory. The memory stores a computer program executable on the processor. When the computer program is executed by the processor, the method for predicting eccentricity of a drum system in a laundry processing device provided in this embodiment is implemented.

[0100] This embodiment further provides a computer-readable storage medium storing a computer program that, when executed, implements the method for predicting eccentricity of a drum system in a laundry processing device provided in this embodiment.

[0101] Example 2

[0102] Figure 4 4 is a flow chart of a method for dehydrating clothes through a drum system of a clothes processing device provided in this embodiment.

[0103] like Figure 4As shown, the present embodiment provides a method S for dehydrating clothes through a drum system of a clothes processing device, comprising:

[0104] a. Obtain the actual load M1 and the first calibration relationship between the load M and the amplitude ratio k, where the amplitude ratio k is the high speed amplitude A of the drum system after stabilization at high speed and the resonant amplitude A at resonant speed under the same load M. max The ratio between them is that the high speed is greater than the resonant speed;

[0105] b. Determine the specific amplitude ratio k1 corresponding to the actual load M1 according to the actual load M1 and the first calibration relationship;

[0106] c. Obtain the specific resonance amplitude A under the actual load M1 max1 ;

[0107] d. According to the specific amplitude ratio k1 and the specific resonance amplitude A max1 Determine the specific high speed amplitude A1 under the actual load M1;

[0108] e. Obtaining a second calibration relationship between the eccentricity m and the high-speed amplitude A;

[0109] f. Determine the specific high-speed eccentricity m1 under the actual load M1 according to the specific high-speed amplitude A1 and the second calibration relationship;

[0110] g. Get the eccentricity threshold m0;

[0111] h. Determine whether the specific high-speed eccentricity m1 is less than or equal to the eccentricity threshold m0. If so, go to i, if not, go to j;

[0112] i. Increase the speed to high speed for dehydration;

[0113] j. Reduce the speed to change the load distribution and go to c.

[0114] In one or more specific examples, the clothes treating apparatus provided by this embodiment may include a drum-type clothes treating apparatus.

[0115] Specifically, the laundry processing device may include a housing, a drum system, and a drive motor. The drum system is disposed within the housing and includes an outer drum disposed within the housing, an inner drum rotatably disposed within the outer drum, a vibration damper disposed at the bottom of the outer drum, and a vibration damping spring connected between the outer drum and the housing. The drive motor is also disposed within the housing and connected to the inner drum, and is adapted to drive the inner drum to rotate.

[0116] The laundry treating apparatus may further include an amplitude sensor connected to the drum system, adapted to detect the amplitude of the drum system.

[0117] Before step a, the method may further include starting a driving motor to drive the inner drum to rotate.

[0118] In step a, the actual load M1 is the actual mass of the load to be dehydrated within the clothing processing device. The actual load M1 can be obtained using conventional techniques in the art. For example, it can be acquired using a weighing module within the clothing processing device, calculated from a signal indicating the power consumed by the load, or converted from the relationship between the motor current and the corresponding load when driving loads of varying load capacities.

[0119] In step a, obtaining the first calibration relationship includes: obtaining the high speed amplitude A and the resonance amplitude A under different loads M max The ratio of the former to the latter is determined as the amplitude ratio k corresponding to different load amounts M; and the mapping relationship between different load amounts M and the corresponding amplitude ratio k is determined as the first calibration relationship.

[0120] In step a, the first calibration relationship is a mapping relationship between the load M and the amplitude ratio k. For each different load M, there is a unique amplitude ratio k corresponding thereto.

[0121] In step a, the amplitude ratio k is the high speed amplitude A of the drum system when it runs at high speed and tends to be stable and the resonant amplitude A when it runs at resonant speed under the same load M. max The ratio between them is , and the high speed is greater than the resonant speed.

[0122] When the load in the drum system of the laundry treatment equipment is dehydrated, the inner drum rotates at a certain speed, causing the drum system to vibrate. When the drum system is vibrating, the speed of the inner drum is the resonant speed of the drum system. The drum system has the largest amplitude at the resonant speed, that is, the resonance amplitude A. max The high-speed amplitude A of the drum system is the amplitude generated by the drum system during the dehydration process at high speed.

[0123] For a clothing processing device with a processing capacity greater than or equal to 5 kg and less than or equal to 10 kg, in one or more specific examples, the resonant frequency of its drum system is within the range of greater than or equal to 2.5 Hz and less than or equal to 5 Hz, the resonant speed of its drum system is within the range of greater than or equal to 150 rpm and less than or equal to 300 rpm, and the high speed used during dehydration is greater than the resonant speed of the aforementioned drum system. For example, the high speed used during dehydration can be greater than or equal to 700 rpm.

[0124] In one or more specific examples, the mapping relationship between the load M and the amplitude ratio k can be obtained through experimental calibration. For a specific implementation, please refer to the content of Example 1.

[0125] In the technical solution provided in this embodiment, for a specific laundry processing device, the amplitude ratio k is a certain value under the same load M. For different laundry processing devices and / or different loads, the amplitude ratio k and the first calibration relationship of the drum system need to be recalibrated.

[0126] In step b, a specific amplitude ratio k1 corresponding to the actual load M1 may be determined based on a one-to-one mapping relationship between the load M and the amplitude ratio k.

[0127] In step c, the specific resonance amplitude A under the actual load M1 can be obtained by adjusting the rotation speed of the inner drum. max1 Specific resonance amplitude A under actual load M1 at different speeds max1 , can be obtained through the amplitude sensor of the clothing processing equipment. Specifically, under the actual load M1, the drum system can be made to resonate by adjusting the speed of the inner drum, and the amplitude of the drum system when it resonates can be obtained through the amplitude sensor. This amplitude is the specific resonance amplitude A under the actual load M1. max1 .

[0128] Generally, the load will affect the resonant speed of the drum system. Different loads will result in different resonant speeds of the drum system. The resonant speed is within a certain range. Therefore, in a specific implementation, the amplitude sensor can be used to monitor the amplitude change process of the drum system at different speeds, and when the amplitude begins to decrease, it is determined that resonance has occurred. The speed and amplitude when resonance occurs are the resonant speed and resonance amplitude A of the drum system. max Alternatively, when the speed of the inner drum is within the resonance speed range, the maximum amplitude of the drum system can be monitored, and the maximum amplitude is the resonance amplitude A of the drum system. max .

[0129] In step d, the specific amplitude ratio k1 obtained in step b and the specific resonance amplitude A obtained in step c can be used to obtain the resonance amplitude. max1 Determine the specific high speed amplitude A1 under the actual load M1. Specifically, A1 = k1 * A max1 .

[0130] In step e, obtaining the second calibration relationship includes: obtaining the high-speed amplitude A under different eccentricities m; and determining the mapping relationship between different eccentricities m and the corresponding high-speed amplitude A as the second calibration relationship.

[0131] In step e, the eccentricity m is the unbalanced mass generated by uneven load distribution during the dehydration process.

[0132] The eccentricity of the load can generate a certain centrifugal force, causing the inner cylinder to vibrate, which is then transmitted to the outer cylinder, shock absorber and shock absorber spring. The larger the eccentricity m, the greater the centrifugal force formula f = mω. 2 r, the greater the centrifugal force it generates. In the case of a large centrifugal force, the mechanical strength of the clothes processing equipment, especially the drum system, is not enough, which will cause damage.

[0133] In step e, the second calibration relationship is a mapping relationship between the eccentricity m and the high-speed amplitude A. Under the same load M, for each different eccentricity m, there is a unique high-speed amplitude A corresponding thereto.

[0134] In some examples, the mapping relationship between the eccentricity m and the high-speed amplitude A can be obtained through experimental calibration. For detailed implementation, please refer to the content of Example 1.

[0135] In other examples, in the technical solutions provided in this embodiment, for a specific laundry processing device, under the same load M, the high-speed amplitude A of the drum system and the eccentricity m have a linear relationship, that is, the second calibration relationship can be expressed by a linear relationship. For example, the second calibration relationship can be expressed as A = C1 * m + C0, where C1 and C0 are the slope and intercept of the line corresponding to the linear relationship, respectively. The eccentricity m and high-speed amplitude A can be obtained through experiments.

[0136] In step f, the specific high-speed eccentricity m1 corresponding to the specific high-speed amplitude A1 can be determined based on the one-to-one mapping relationship between the eccentricity m and the high-speed amplitude A.

[0137] The eccentricity threshold m0 in step g can be preset according to the specific conditions of the particular laundry processing device. Generally, the preset eccentricity threshold m0 is suitable for ensuring that the drum system does not generate large vibrations to avoid damage to the laundry processing device and causing large noise.

[0138] In step h, determine whether the specific high-speed eccentricity m1 is less than or equal to the eccentricity threshold m0. If so, go to step i; if not, go to step j.

[0139] In step i, since the specific high-speed eccentricity m1 is less than or equal to the eccentricity threshold m0, the speed of the inner drum can be increased to a high speed for dehydration without causing significant vibration of the drum system.

[0140] In step j, since the specific high-speed eccentricity m1 is greater than the eccentricity threshold m0, it is necessary to reduce the speed of the inner drum to change the load distribution and go to c until the specific high-speed eccentricity m1 corresponding to the specific high-speed amplitude A1 under the actual load M1 is lower than or equal to the eccentricity threshold m0, and the speed of the inner drum can be increased to a high speed for dehydration.

[0141] In step j, reducing the rotation speed to change the load distribution may include reducing the rotation speed to shake the load loose, and then increasing the rotation speed to make the load stick to the drum again.

[0142] The execution sequence of the steps of the method S for dehydrating clothes by using a drum system of a clothes treating apparatus is merely an example and is not intended to limit the steps of the method S for dehydrating clothes by using a drum system of a clothes treating apparatus.

[0143] The first calibration relationship and the second calibration relationship provided in this embodiment can be pre-calibrated before executing the method of dehydrating through the drum system of the clothes treating apparatus.

[0144] The technical solution provided in this embodiment can predict the specific high-speed eccentricity m1 during high-speed dehydration during low-speed dehydration, and use this to determine whether the speed can be increased to perform high-speed dehydration. If the speed cannot be increased to perform high-speed dehydration, the speed can be reduced to redistribute the load until high-speed dehydration can be performed. In this way, eccentricity distribution can be performed in advance to ensure machine protection and reduce noise during high-speed dehydration.

[0145] The technical solution provided in this embodiment can utilize the existing sensors of the clothing processing equipment to collect relevant signals, thereby eliminating the need to modify the equipment and not increasing the modification cost.

[0146] This embodiment also provides another clothes processing device.

[0147] In one or more specific examples, the clothes treating apparatus includes a drum-type clothes treating apparatus.

[0148] Specifically, the laundry processing device may include a housing, a drum system, and a drive motor. The drum system is disposed within the housing and includes an outer drum disposed within the housing, an inner drum rotatably disposed within the outer drum, a vibration damper disposed at the bottom of the outer drum, and a vibration damping spring connected between the outer drum and the housing. The drive motor is also disposed within the housing and connected to the inner drum, and is adapted to drive the inner drum to rotate.

[0149] In one or more specific examples, the vibration absorber may be disposed between the outer bottom wall of the outer cylinder and the inner bottom wall of the box.

[0150] In other specific examples, two groups of damping springs may be provided. One group is located on the upper left side of the outer tube, and the other group is located on the upper right side of the outer tube. The damping spring located on the upper left side of the outer tube includes an upper left end and a lower right end. Its lower right end is connected to the upper left end of the outer tube, and its upper left end is connected to the left inner wall of the box. The damping spring located on the upper right side of the outer tube includes an upper right end and a lower left end. Its lower left end is connected to the upper right end of the outer tube, and its upper right end is connected to the right inner wall of the box.

[0151] The laundry treating apparatus may further include an amplitude sensor connected to the drum system, adapted to detect the amplitude of the drum system.

[0152] In one or more specific examples, the amplitude sensor can be mounted on the motor.

[0153] The laundry processing device provided in this embodiment further includes a processor and a memory. The memory stores a computer program executable on the processor. When the computer program is executed by the processor, the method for dehydrating the laundry by the drum system of the laundry processing device provided in this embodiment is implemented.

[0154] This embodiment further provides a computer-readable storage medium storing a computer program that, when executed, implements the method for dehydrating clothes by a drum system of a clothes processing apparatus provided in this embodiment.

[0155] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even when only a single embodiment is described with respect to specific features. The feature examples provided in the present disclosure are intended to be illustrative, not limiting, unless otherwise stated. In specific implementations, the technical features of one or more dependent claims may be combined with the technical features of the independent claims, depending on actual needs and where technically feasible, and the technical features from the corresponding independent claims may be combined in any appropriate manner rather than solely through the specific combinations listed in the claims.

[0156] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. A method (S10) for predicting eccentricity of a drum system in a laundry processing device, characterized in that: include: Get the actual load (M1); Obtain the high speed amplitude (A) and resonance amplitude (A) under different loads (M) max ), and the ratio of the former to the latter is determined as the amplitude ratio (k) corresponding to different loads (M), and the mapping relationship between different loads (M) and the corresponding amplitude ratio (k) is determined as the first calibration relationship, wherein the amplitude ratio (k) is the high speed amplitude (A) of the drum system when it runs at a high speed and tends to be stable and the resonant amplitude (A) when it runs at a resonant speed under the same load (M). max ), the high speed is greater than the resonant speed; determining a specific amplitude ratio (k1) corresponding to the actual load (M1) based on the actual load (M1) and the first calibration relationship; Obtain the specific resonance amplitude (A) under the actual load (M1) max1 ); According to the specific amplitude ratio (k1) and the specific resonance amplitude (A max1 ) determining a specific high speed amplitude (A1) under the actual load (M1); Obtaining a second calibration relationship between the eccentricity m and the high-speed amplitude (A); The specific high-speed eccentricity (m1) under the actual load (M1) is determined according to the specific high-speed amplitude (A1) and the second calibration relationship.

2. The method (S10) according to claim 1, characterized in that Acquiring the second calibration relationship includes: Obtain the high speed amplitude (A) under different eccentricity (m); The mapping relationship between different eccentricities (m) and corresponding high-speed amplitudes (A) is determined as the second calibration relationship.

3. A laundry processing device (100), comprising a drum system (120), characterized in that: Also includes: processor; a memory having stored thereon a computer program executable on the processor; When the computer program is executed by the processor, the steps of the method according to any one of claims 1 to 2 are implemented.

4. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed, the steps of the method according to any one of claims 1 to 2 are implemented.

5. A method (S) for dehydrating clothes by a drum system of a clothes treatment device, characterized in that: include: a. Obtain the actual load (M1), obtain the high speed amplitude (A) and resonance amplitude (A) under different loads (M) max ), and the ratio of the former to the latter is determined as the amplitude ratio (k) corresponding to different loads (M), and the mapping relationship between different loads (M) and the corresponding amplitude ratio (k) is determined as the first calibration relationship, wherein the amplitude ratio (k) is the ratio of the high speed amplitude (A) of the drum system after stabilization when running at high speed to the resonant amplitude (A) when running at resonant speed under the same load (M). max ), the high speed is greater than the resonant speed; b. determining a specific amplitude ratio (k1) corresponding to the actual load (M1) based on the actual load (M1) and the first calibration relationship; c. Obtain the specific resonance amplitude (A) under the actual load (M1) max1 ); d. According to the specific amplitude ratio (k1) and the specific resonance amplitude (A max1 ) determining a specific high speed amplitude (A1) under the actual load (M1); e. Obtaining a second calibration relationship between the eccentricity (m) and the high speed amplitude (A); f. determining the specific high-speed eccentricity (m1) under the actual load (M1) based on the specific high-speed amplitude (A1) and the second calibration relationship; g. Get the eccentricity threshold (m0); h. Determine whether the specific high-speed eccentricity (m1) is less than or equal to the eccentricity threshold (m0). If so, increase the speed to a high speed for dehydration. If not, reduce the speed to change the load distribution and repeat steps c to h.

6. The method (S) according to claim 5, characterized in that The reducing the rotation speed to change the load distribution includes reducing the rotation speed to shake the load apart, and then increasing the rotation speed to make the load stick to the drum again.

7. The method (S) according to claim 5, characterized in that Acquiring the second calibration relationship includes: Obtain the high speed amplitude (A) under different eccentricity (m); The mapping relationship between different eccentricities (m) and corresponding high-speed amplitudes (A) is determined as the second calibration relationship.

8. Method (S) according to any one of claims 5 to 7, characterized in that The load capacity is the mass of the load in the clothes treating device.

9. The method (S) according to claim 8, characterized in that The high-speed amplitude is the amplitude generated by the drum system during the dehydration process at a high speed.

10. The method (S) according to claim 8, characterized in that The resonance amplitude is the amplitude generated when the drum system resonates during the dehydration process.

11. The method (S) according to claim 8, characterized in that The eccentricity is the unbalanced mass formed by the uneven load distribution during the dehydration process.

12. The method (S) according to claim 8, characterized in that The clothes treating apparatus includes a drum-type clothes treating apparatus.

13. The method (S) according to claim 12, characterized in that The resonant rotation speed of the drum-type laundry processing device is greater than or equal to 150 revolutions per minute and less than or equal to 300 revolutions per minute.

14. The method (S) according to claim 12, characterized in that The high rotation speed of the drum-type clothes processing device during the dehydration process is greater than or equal to 700 revolutions per minute.

15. A clothes processing device comprising a drum system, characterized in that: Also includes: processor; a memory having stored thereon a computer program executable on the processor; When the computer program is executed by the processor, the steps of the method according to any one of claims 5 to 14 are implemented.

16. The clothes treating apparatus according to claim 15, characterized in that: A vibration sensor is also included, which is suitable for detecting the amplitude of the drum system during the dehydration process.

17. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed, the steps of the method according to any one of claims 5 to 14 are implemented.

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