Clothes processing equipment and control method thereof

Abstract

The invention discloses clothes treating equipment and a control method thereof, and the clothes treating equipment comprises a drum assembly which comprises an outer drum and a washing drum which are coaxially arranged; the vibration detection device is arranged on an area, close to a barrel opening and / or a barrel bottom, of the barrel wall of the outer barrel and is used for detecting vibration displacement of the outer barrel at the position where the vibration detection device is arranged; at least part of the rubber connecting piece is located on the outer side of the barrel opening of the outer barrel, the rubber connecting piece is connected with the barrel opening, and the rubber connecting piece deforms along with vibration of the outer barrel; the clothes processing equipment determines the swinging angle of the outer drum according to the vibration displacement, so that the rotating process of the washing drum in the dewatering program is controlled. The vibration displacement of the outer cylinder close to the cylinder opening and / or the cylinder bottom area is detected through the vibration detection device so as to calculate the accurate swing angle of the outer cylinder, and therefore the rotating process of the washing cylinder is controlled, the situation that the outer cylinder pulls and rubs the rubber connecting piece due to the too large vibration amplitude can be avoided, noise is generated by the rubber connecting piece, and quiet operation of washing equipment is achieved.

Description

Technical Field

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

[0002] The rubber connector of the outer drum opening of the laundry processing device is a sealing device, which is arranged between the outer drum and the opening of the door assembly or the housing. When the washing drum vibrates during operation, the rubber connector can keep the outer drum wrapped outside the washing drum and the door assembly or the housing in a stable connection.

[0003] However, the rubber connector, as a rubber product, is prone to produce pulling noise due to deformation during the operation of the washing drum, and if the rubber connector is deformed at the connection with the outer drum, door body or shell, or the outer drum has a large displacement relative to the rubber connector, it will produce noise of rubber rubbing against objects.

[0004] The noise generated by the rubber connector is relatively loud, which is extremely detrimental to the quiet operation of the clothing processing device.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a clothing processing device and a control method thereof. The vibration displacement of the outer drum near the drum mouth and / or the drum bottom area is detected by a vibration detection device to calculate the accurate swing angle of the outer drum, thereby controlling the rotation process of the washing drum. This can prevent the outer drum from pulling and rubbing the rubber connecting part due to excessive vibration amplitude, avoid the rubber connecting part from generating noise, and achieve quiet operation of the washing device.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] The present invention provides a clothes processing device, comprising:

[0009] The drum assembly includes an outer drum and a washing drum which are coaxially arranged;

[0010] A vibration detection device is arranged on the wall of the outer cylinder near the cylinder mouth and / or the cylinder bottom, and is used to detect the vibration displacement of the outer cylinder at the position where the vibration detection device is arranged;

[0011] a rubber connector, at least partly located outside the tube opening of the outer tube and connected to the tube opening, wherein the rubber connector is deformed as the outer tube vibrates;

[0012] The laundry processing device determines the swing angle of the outer drum according to the vibration displacement, thereby controlling the rotation process of the washing drum in the dehydration process.

[0013] The present invention arranges the vibration detection device on the area of ​​the outer drum near the drum mouth and / or the drum bottom, so that the vibration displacement detected by the vibration detection device can accurately calculate the swing angle of the outer drum, thereby preventing the outer drum from pulling and rubbing the rubber connecting part due to vibration, avoiding the rubber connecting part from generating noise, and allowing the washing device to maintain quiet operation.

[0014] A further solution of the present invention is: the vibration detection device comprises:

[0015] A first vibration detection device is arranged near the tube mouth of the outer tube and is used to detect the vibration displacement of the tube mouth end of the outer tube;

[0016] A second vibration detection device is arranged near the bottom of the outer cylinder and is used to detect the vibration displacement of the bottom end of the outer cylinder;

[0017] The connecting line between the first vibration detection device and the second vibration detection device is parallel to the central axis of the outer cylinder.

[0018] In the above scheme, through the first vibration detection device and the second vibration detection device, the clothing processing device can determine the exact position when the outer drum vibrates through the vibration displacement of the drum mouth end and the vibration displacement of the drum bottom end.

[0019] A further solution of the present invention is that the first vibration detection device and the second vibration detection device are arranged on the upper part of the horizontal plane passing through the central axis of the outer cylinder.

[0020] In the above solution, the first vibration detection device and the second vibration detection device can better detect the vibration of the outer cylinder.

[0021] The present invention also provides a control method for a clothes processing device, comprising:

[0022] During the high-speed rotation stage of the washing drum in the dehydration program, obtaining the vibration displacement detected by the vibration detection device;

[0023] determining the swing angle of the outer cylinder according to the vibration displacement;

[0024] The vibration displacement is compared with a displacement threshold, and the swing angle is compared with an angle threshold, and it is determined whether to control the washing drum to interrupt the current rotation speed according to the comparison result.

[0025] In the above scheme, when the outer drum generates large vibration, the current rotation speed is interrupted in time to avoid the clothes in the washing drum hitting the washing drum to generate greater vibration, thereby avoiding the outer drum from generating noise due to vibration pulling and friction of the rubber connector, so that the washing equipment can maintain quiet operation.

[0026] A further solution of the present invention is: the vibration detection device comprises a first vibration detection device and a second vibration detection device, and the distance between the first vibration detection device and the second vibration detection device is L;

[0027] The first vibration detection device is arranged near the tube mouth of the outer tube, and is used to detect the vibration displacement S1 of the tube mouth end of the outer tube;

[0028] The second vibration detection device is arranged near the bottom of the outer cylinder and is used to detect the vibration displacement S2 of the bottom end of the outer cylinder;

[0029] The laundry processing device determines the swing angle of the outer drum according to the vibration displacement S1 of the drum mouth end, the vibration displacement S2 of the drum bottom end and the distance L.

[0030] A further solution of the present invention is that the clothes processing device is preset with:

[0031] The first judgment condition is that the barrel end vibration displacement S1 is greater than the barrel end displacement threshold;

[0032] The second judgment condition is that the vibration displacement S2 of the bottom end of the cylinder is greater than the cylinder bottom displacement threshold;

[0033] The third judgment condition is that the swing angle of the outer cylinder is greater than the angle threshold;

[0034] When it is detected that at least one of the first determination condition, the second determination condition and the third determination condition is reached, the washing tub is controlled to interrupt the current rotation speed.

[0035] In the above scheme, the first vibration detection device and the second vibration detection device enable the clothes processing device to obtain a more accurate outer drum swing angle, thereby making the judgment of controlling the washing drum to interrupt the current rotation speed more accurate.

[0036] A further solution of the present invention is that: the vibration detection device is provided with only one, which is located at the outer tube mouth end or the outer tube bottom end, and is used to detect the vibration displacement of the outer tube at the outer tube mouth end or the outer tube bottom end;

[0037] The laundry processing device compares the outer drum vibration displacement with the outer drum vibration threshold, and determines whether to control the washing drum to interrupt the current rotation speed according to the comparison result.

[0038] In the above solution, the clothes processing device can detect large vibration displacement of the outer drum at a relatively low cost by arranging a vibration detection device at the outer drum mouth end or the outer drum bottom end.

[0039] A further solution of the present invention is: the controlling of the washing drum to interrupt the current speed comprises:

[0040] The running time of the dehydration program is counted. If the running time is greater than the set time value, the washing drum is controlled to reduce the speed and continue to rotate; otherwise, the washing drum is controlled to stop rotating, and then the redistribution operation of the clothes in the washing drum is performed.

[0041] In the above scheme, by reducing the rotation speed of the washing drum, greater vibration of the outer drum is avoided; by performing the redistribution operation of the clothes in the washing drum, the clumped clothes in the washing drum are dispersed, thereby preventing the clothes from clumping and colliding with the drum wall at the high rotation speed of the washing drum, thereby causing greater vibration of the outer drum.

[0042] A further solution of the present invention is: if it is detected that the first determination condition, the second determination condition and the third determination condition are all not satisfied, the speed of the washing tub is controlled to gradually increase to a high speed threshold;

[0043] During the process of increasing the rotation speed of the washing drum, the clothes processing device determines the value of the high rotation speed threshold according to the vibration displacement S1 of the drum mouth, the vibration displacement S2 of the drum bottom and the swing angle of the outer drum.

[0044] In the above solution, the washing drum is prevented from accelerating to a high rotation speed threshold which would cause the outer drum to vibrate greatly.

[0045] A further solution of the present invention is that the dehydration procedure includes a washing drum accelerated rotation stage and a washing drum high-speed rotation stage performed sequentially;

[0046] During the accelerated rotation stage of the washing tub, the vibration detection device continuously detects the vibration displacement of the outer tub;

[0047] Each time the speed of the washing drum increases by a first set speed, the currently detected vibration displacement is recorded, and the vibration displacement increment is determined according to two adjacent recorded vibration displacements;

[0048] Determining an expected vibration displacement increment based on the obtained multiple vibration displacement increments;

[0049] The current vibration displacement of the outer cylinder is summed with the expected increment of the vibration displacement to obtain an estimated vibration displacement;

[0050] According to the estimated vibration displacement, whether to perform an operation of reducing the rotation speed of the washing tub is controlled.

[0051] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0052] 1. The vibration detection device detects the vibration displacement of the outer drum near the drum mouth and / or the drum bottom area to calculate the accurate swing angle of the outer drum, thereby controlling the rotation process of the washing drum, which can prevent the outer drum from pulling and rubbing the rubber connector due to excessive vibration amplitude, avoid the rubber connector from generating noise, and realize the quiet operation of the washing equipment;

[0053] 2. Through the first vibration detection device and the second vibration detection device, the clothes processing device can obtain a more accurate outer drum swing angle, thereby making the judgment of controlling the washing drum to interrupt the current speed more accurate;

[0054] 3. By arranging a vibration detection device at the outer tube at the tube mouth end or the tube bottom end of the outer tube, the detection of large vibration displacement of the outer tube can be realized at a lower cost;

[0055] 4. By estimating the vibration displacement, it can more sensitively avoid large vibration of the outer cylinder.

[0056] 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

[0057] 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:

[0058] Figure 1 It is a structural schematic diagram of a clothes processing device of the present invention;

[0059] Figure 2 is a schematic diagram of the arrangement of a vibration detection device for a clothes processing device according to an embodiment of the present invention;

[0060] Figure 3 is a schematic diagram of the vibration of the outer drum of a clothes processing device according to an embodiment of the present invention;

[0061] Figure 4 It is a flow chart of setting a vibration detection device in a control method of a clothes processing device of the present invention;

[0062] Figure 5 It is a flow chart of setting two vibration detection devices in a control method of a clothing processing device of the present invention.

[0063] In the figure: 1. outer cylinder; 2. rubber connecting piece; 3. second vibration detection device; 4. first vibration detection device; 5. shell; 51. door body; 6. suspension system; 7. shock absorption system.

[0064] 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

[0065] 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.

[0066] like Figures 1 to 4 As shown, the present invention provides a clothing processing device and a control method thereof, wherein a vibration detection device is arranged on an area of ​​an outer drum 1 close to a drum opening and / or a drum bottom, so that the vibration displacement detected by the device can accurately calculate the swing angle of the outer drum, thereby preventing the outer drum 1 from pulling and rubbing the rubber connector 2 due to vibration, causing the rubber connector 2 to generate noise, and allowing the washing device to maintain quiet operation.

[0067] Embodiment 1

[0068] like Figure 1 As shown, this embodiment provides a clothing processing device, including a drum assembly, including an outer drum 1 and a washing drum arranged coaxially; a vibration detection device, which is arranged on the drum wall of the outer drum 1 in an area close to the drum opening or the drum bottom, and is used to detect the vibration displacement of the outer drum 1 at the position where the vibration detection device is arranged; a rubber connecting member 2, which is at least partially located outside the drum opening of the outer drum 1 and connected to the drum opening, and the rubber connecting member 2 is deformed as the outer drum 1 vibrates; the clothing processing device determines the swing angle of the outer drum according to the vibration displacement, thereby controlling the rotation process of the washing drum in the dehydration program.

[0069] Specifically, the laundry processing device may be a washing machine, a drying machine or a washing and drying machine.

[0070] Specifically, the rubber connector 2 is connected to the outer tube 1 from the door body 51 .

[0071] Specifically, the vibration detection device is a displacement measurement sensor, preferably a vibration sensor, which can determine the vibration state of an object by detecting a small displacement or speed change caused by vibration on the surface of the object.

[0072] More specifically, the vibration sensor has a MEMS (Micro-Electro-Mechanical Systems) vibration sensor module, which can perform high-precision vibration detection, and through automatic judgment and processing of the vibration situation, when there is a large vibration displacement, it can quickly generate a response signal to the controller of the clothing processing device. The controller controls the motor of the washing drum to slow down the rotation of the washing drum, thereby preventing the washing drum from hitting the outer drum 1, causing the outer drum 1 to pull and rub the rubber connector 2 to cause greater vibration.

[0073] Furthermore, the vibration sensor also has a gyroscope module, which can obtain the horizontal displacement component of the outer cylinder 1.

[0074] In a specific application of this embodiment, one of the vibration sensors is disposed on an area of ​​the outer cylinder 1 close to the cylinder mouth or the cylinder bottom, and the vibration sensor obtains a horizontal displacement component of the outer cylinder 1. According to the displacement component and the setting position of the vibration sensor on the outer cylinder 1, the accurate vibration displacement of the outer cylinder 1 at the setting position of the vibration sensor can be obtained, thereby determining the situation of the outer cylinder 1 pulling and rubbing the rubber connector 2.

[0075] Therefore, by arranging the vibration detection device in the area of ​​the outer drum 1 near the drum mouth or the drum bottom, the vibration displacement detected by the vibration detection device can accurately calculate the vibration displacement of the outer drum 1, thereby better avoiding the outer drum 1 from pulling and rubbing the rubber connector 2 due to vibration to generate noise, so that the washing device can maintain quiet operation.

[0076] In this embodiment, the vibration detection device is arranged on the upper part of the horizontal plane passing through the central axis of the outer cylinder 1 .

[0077] In a specific application of this embodiment, Figure 1 As shown, a suspension system 6 is provided at the upper part of the outer tub 1 and a shock absorbing system 7 is provided at the lower part to reduce the smaller vibration of the outer tub 1. The vibration detection device is provided in a range H from the upper part of the horizontal plane passing through the central axis of the outer tub 1 to the top end of the outer tub 1 to avoid the smaller vibrations generated by the clothes hitting the bottom of the washing tub from being detected by the vibration detection device, thereby making the larger vibration displacement detected by the vibration detection device more prominent.

[0078] In another specific application of this embodiment, Figure 1As shown, the vibration detection device is a millimeter wave radar detection sensor, which performs a laser radar scan in a conical detection range from its detection port to the outside to obtain the vibration displacement, and is set in a range H from the upper part of the horizontal plane passing through the central axis of the outer cylinder 1 to the top of the outer cylinder 1, so as to avoid the conical detection range of the millimeter wave radar detection sensor from generating a blind spot in the vertical or horizontal direction of the outer cylinder 1. According to the detection of the vibration displacement by the millimeter wave radar detection sensor, the vibration displacement of the front end or rear end of the outer cylinder 1, that is, the eccentricity, is obtained, so that the clothing processing device can detect the vibration displacement more accurately.

[0079] In this embodiment, by arranging a vibration detection device at the mouth end of the outer tube 1 or the bottom end of the outer tube 1, the detection of a large vibration displacement of the outer tube 1 can be achieved at a relatively low cost.

[0080] Embodiment 2

[0081] like Figure 4 As shown, this embodiment provides a control method for a clothing processing device, in which, during the high-speed rotation stage of the washing drum in the dehydration program, the vibration displacement detected by the vibration detection device is obtained; the outer drum swing angle is determined according to the vibration displacement; the vibration displacement is compared with a displacement threshold, and the outer drum swing angle is compared with an angle threshold, and it is determined whether to control the washing drum to interrupt the current rotation speed according to the comparison result.

[0082] Specifically, the laundry processing device sequentially performs a washing drum acceleration rotation stage with a washing drum speed ranging from 0 to an intermediate target speed and a washing drum high-speed rotation stage with a washing drum speed ranging from higher than the intermediate target speed in the dehydration program.

[0083] The solution of this embodiment obtains the vibration displacement detected by the vibration detection device; determines the outer drum swing angle according to the vibration displacement; compares the vibration displacement with the displacement threshold, and compares the outer drum swing angle with the angle threshold, so as to timely interrupt the current rotation speed when the outer drum 1 generates a large vibration, avoid the clothes in the washing drum from hitting the washing drum to generate a larger vibration, and further avoid the outer drum 1 from generating noise due to vibration pulling and friction of the rubber connector 2, so that the washing device can maintain quiet operation.

[0084] In a specific application of this embodiment, only one vibration detection device is provided, which is located at the outer drum mouth or the bottom end of the outer drum 1, and is used to detect the outer drum vibration displacement at the outer drum mouth or the outer drum bottom end; the clothing processing device compares the outer drum vibration displacement with the outer drum vibration threshold, and determines whether to control the washing drum to interrupt the current speed according to the comparison result.

[0085] In another specific application of the present embodiment, the vibration detection device obtains the horizontal displacement component and the vibration displacement of the outer drum 1 by detection, determines the swing angle of the outer drum according to the horizontal displacement component, compares the vibration displacement with the displacement threshold, and compares the swing angle with the angle threshold, and determines whether to control the washing drum to interrupt the current speed according to the comparison result.

[0086] Therefore, the clothing processing device can detect large vibration displacements of the outer drum 1 by only arranging one vibration detection device on the outer drum 1, which is located at the mouth end of the outer drum 1 or the bottom end of the outer drum 1, thereby realizing the detection of large vibration displacements of the outer drum 1 by the clothing processing device at a relatively low cost.

[0087] In this embodiment, the controlling of the washing drum to interrupt the current rotation speed includes: counting the running time of the dehydration program, if the running time is greater than the setting time value, controlling the washing drum to reduce the rotation speed and continue to rotate; otherwise, controlling the washing drum to stop rotating, and then performing a redistribution operation of the clothes in the washing drum.

[0088] In a specific application of this embodiment, starting from when the washing drum speed is greater than 600 rpm, a threshold corresponding to each speed step is set at every 200 rpm. For example, a washing drum speed of 600 rpm corresponds to a threshold value A600, and a washing drum speed of 800 rpm corresponds to a threshold value A800. If the vibration displacement exceeds the threshold value A800, the washing drum speed is reduced to 600 rpm and maintained, and so on.

[0089] Specifically, the redistribution operation of the clothes in the washing drum is to rotate the washing drum at a relatively low speed so that the clothes are gradually dispersed and do not clump and hit the washing drum. During the process of the clothes processing device performing the redistribution operation of the clothes in the washing drum, the rotation speed of the washing drum increases from 0rpm to between 80rpm and 120rpm. Therefore, after performing the redistribution operation of the clothes in the washing drum, re-entering the high-speed rotation stage of the washing drum, it can be achieved that the clothes will not clump and hit the washing drum at a higher rotation speed, and the outer drum 1 will not produce noise due to vibration, pulling, and friction of the rubber connector 2, thereby achieving high-speed and quiet operation of the washing device. And when the running time is greater than the time setting value, that is, when the remaining time of the dehydration program is too short, only the rotation speed of the washing drum is reduced, and the redistribution operation of the clothes in the washing drum is not performed, thereby avoiding the excessive time consumption of performing the redistribution operation of the clothes in the washing drum.

[0090] Therefore, by reducing the rotation speed of the washing drum, greater vibration of the outer drum 1 is avoided; by performing the redistribution operation of the clothes in the washing drum, the clumped clothes in the washing drum are dispersed, thereby preventing the clothes from clumping and colliding with the drum wall at the high rotation speed of the washing drum, thereby causing greater vibration of the outer drum 1.

[0091] In this embodiment, if the outer cylinder vibration displacement is less than or equal to the outer cylinder vibration threshold and the swing angle is less than or equal to the angle threshold, the high rotation speed threshold is adjusted according to the outer cylinder vibration displacement and the outer cylinder swing angle.

[0092] Therefore, it is avoided that the washing drum is accelerated to a high rotation speed threshold which would cause the outer drum 1 to generate a large vibration.

[0093] In this embodiment, the dehydration program includes a washing drum acceleration rotation stage and a washing drum high-speed rotation stage performed in sequence; in the washing drum acceleration rotation stage, the outer drum 1 is continuously subjected to vibration displacement detection by the vibration detection device; each time the rotation speed of the washing drum increases by a first set rotation speed, the currently detected vibration displacement is recorded, and a vibration displacement increment is determined based on two adjacent recorded vibration displacements; an expected vibration displacement increment is determined based on the obtained multiple vibration displacement increments; the current vibration displacement of the outer drum is summed with the expected vibration displacement increment to obtain an estimated vibration displacement; and based on the estimated vibration displacement, whether to execute an operation of reducing the rotation speed of the washing drum is controlled.

[0094] Specifically, if the estimated vibration displacement is greater than the vibration displacement threshold, the operation of reducing the speed of the washing drum is performed. In this embodiment, the intermediate target speed can be set to 400rpm (Revolutions Per Minute), that is, the washing drum speed range in the washing drum acceleration rotation stage is 0 to 400rpm. Among them, the washing drum acceleration rotation stage is further divided into a low-speed rotation zone with a washing drum speed range of 0 to 150rpm and a medium- and low-speed resonance zone of the whole machine with a washing drum speed range of 150rpm to 400rpm. In the medium- and low-speed resonance zone of the whole machine, the vibration amplitude of the outer drum 1 is large, close to the resonance state of the washing drum.

[0095] In a specific application of the present embodiment, during the speed increase process of the washing drum in the medium-to-low speed resonance zone of the whole machine, the vibration displacement of the outer drum 1 is continuously detected by the vibration detection device to obtain a vibration displacement increment △A of 10 rpm per liter, and all the vibration displacement increments △A are recorded in sequence, and vibration displacement increment points are generated. Through the fitting algorithm, a fitting equation with the best fitting goodness of fit is obtained. Through the fitting equation, an expected increment of the vibration amplitude when the speed increases from 10 rpm to 50 rpm after the current time point is obtained, and the current vibration displacement of the outer drum 1 is summed with the expected increment of the vibration amplitude to obtain an estimated vibration displacement. According to the estimated vibration displacement, whether to perform the operation of reducing the speed of the washing drum is controlled.

[0096] In a specific application of this embodiment, the operation of reducing the speed of the washing drum includes: setting the speed of the washing drum to a speed gradient that increases successively, and if the vibration displacement exceeds a first threshold, controlling the motor to reduce the speed so that the speed of the washing drum is reduced to within its previous speed gradient.

[0097] In another specific application of this embodiment, the operation of reducing the speed of the washing drum includes: setting a maximum limit S0 of the vibration displacement. If the vibration displacement exceeds the maximum limit S0, the motor is controlled to gradually stop rotating, and the operation of redistributing the clothes in the washing drum is performed, and the motor is controlled to accelerate again.

[0098] In this embodiment, the laundry processing device sequentially performs a washing drum accelerated rotation stage and a washing drum high-speed rotation stage in the dehydration program, and the washing drum accelerated rotation stage is divided into a low-speed rotation zone and a whole machine medium-low speed resonance zone.

[0099] like Figure 4 As shown, the specific process of the control method of the clothes processing device is as follows: start the dehydration program; the washing drum starts to accelerate and enters the low-speed rotation area of ​​the dehydration program: when the speed of the washing drum reaches a first set speed, the vibration displacement of the washing tub is detected to obtain the low-speed vibration displacement; if the low-speed vibration displacement is greater than the low-speed threshold, the washing drum is controlled to interrupt the current speed;

[0100] The washing tub is accelerated to the medium and low speed resonance zone of the dehydration program: the vibration displacement of the outer tub 1 is continuously detected by the vibration detection device; each time the rotation speed of the washing tub increases by the first set rotation speed, the current vibration displacement is recorded, and the vibration amplitude increment is determined according to the vibration displacements recorded twice adjacently; the estimated vibration displacement is determined according to the obtained multiple vibration amplitude increments; the current vibration displacement of the outer tub 1 is summed with the expected vibration amplitude increment to obtain the estimated vibration displacement; if the estimated vibration displacement is greater than the vibration displacement threshold, the operation of reducing the rotation speed of the washing tub is executed;

[0101] The washing drum is accelerated to the high-speed rotation stage of the dehydration program: the vibration displacement detected by the vibration detection device is obtained; the outer drum swing angle is determined according to the vibration displacement; if the vibration displacement is greater than the displacement threshold and the outer drum swing angle is greater than the angle threshold, the washing drum is controlled to interrupt the current speed, otherwise when it is judged that the washing drum is in the process of accelerating to the high speed threshold, the high speed threshold is adjusted according to the outer drum vibration displacement and the outer drum swing angle, so that the washing drum rotates at the high speed threshold.

[0102] In this embodiment, the vibration displacement of the outer drum 1 near the drum mouth and / or the drum bottom area is detected by a vibration detection device to calculate the accurate swing angle of the outer drum 1, thereby controlling the rotation process of the washing drum, which can prevent the outer drum 1 from pulling and rubbing the rubber connector due to excessive vibration amplitude, causing the rubber connector 2 to generate noise, thereby achieving quiet operation of the washing device; by arranging a vibration detection device at the drum mouth end or the drum bottom end of the outer drum 1, the detection of large vibration displacement of the outer drum 1 can be achieved at a lower cost; by estimating the vibration displacement, the outer drum 1 can be more sensitively avoided from generating large vibrations.

[0103] Embodiment 3

[0104] like Figures 1 to 3 As shown, this embodiment provides a clothing processing device. Based on the first embodiment, this embodiment adds a vibration detection device. The clothing processing device includes: a vibration detection device, which is arranged on the wall of the outer drum 1 near the drum mouth and the drum bottom, and is used to detect the vibration displacement of the outer drum 1 at the position where the vibration detection device is set.

[0105] By arranging the vibration detection device on the area of ​​the outer drum 1 near the drum mouth and the drum bottom, the vibration displacement detected by it can accurately calculate the swing angle of the outer drum, thereby better avoiding the outer drum 1 from pulling and rubbing the rubber connecting part 2 due to vibration to generate noise, so that the washing equipment can maintain quiet operation.

[0106] In this embodiment, Figure 2 and Figure 3 As shown, the vibration detection device comprises: a first vibration detection device 4, which is arranged near the tube mouth of the outer tube 1 and is used to detect the vibration displacement of the tube mouth end of the outer tube 1; a second vibration detection device 3, which is arranged near the tube bottom of the outer tube 1 and is used to detect the vibration displacement of the tube bottom end of the outer tube 1; the connecting line of the first vibration detection device 4 and the second vibration detection device 3 is parallel to the central axis of the outer tube 1. The outer tube 1 is arranged in the shell 5.

[0107] In this embodiment, the first vibration detection device 4 and the second vibration detection device 3 are arranged on the upper part of a horizontal plane passing through the central axis of the outer cylinder 1 .

[0108] This enables the first vibration detection device 4 and the second vibration detection device 3 to better detect the vibration of the outer cylinder 1 .

[0109] In this embodiment, the first vibration detection device 4 and the second vibration detection device 3 enable the clothes processing device to obtain a more accurate outer drum swing angle, thereby making the judgment of controlling the washing drum to interrupt the current rotation speed more accurate.

[0110] Embodiment 4

[0111] like Figure 5 As shown, this embodiment provides a control method for a clothing processing device on the basis of the second embodiment, and the control method for the clothing processing device is applied to the clothing processing device described in the third embodiment, and the control method for the clothing processing device includes: the vibration detection device includes a first vibration detection device 4 and a second vibration detection device 3, and the distance between the first vibration detection device 4 and the second vibration detection device 3 is L; the first vibration detection device 4 is arranged close to the barrel mouth of the outer barrel 1, and is used to detect the vibration displacement S1 of the barrel mouth end of the outer barrel 1; the second vibration detection device 3 is arranged close to the barrel bottom of the outer barrel 1, and is used to detect the vibration displacement S2 of the barrel bottom end of the outer barrel 1; the clothing processing device determines the swing angle of the outer barrel 1 according to the barrel mouth end vibration displacement S1, the barrel bottom end vibration displacement S2 and the distance L.

[0112] In this embodiment, the clothing processing device is preset with: a first judgment condition, the vibration displacement S1 of the drum mouth end is greater than the drum mouth displacement threshold; a second judgment condition, the vibration displacement S2 of the drum bottom end is greater than the drum bottom displacement threshold; a third judgment condition, the swing angle of the outer drum 1 is greater than the angle threshold; when it is detected that at least one of the first judgment condition, the second judgment condition and the third judgment condition is met, the washing drum is controlled to interrupt the current speed.

[0113] In the above scheme, the operation of controlling the washing machine to interrupt the current rotation speed is the same as that in the above second embodiment.

[0114] Furthermore, in this embodiment, if it is detected that the first determination condition, the second determination condition and the third determination condition are all not met, the rotation speed of the washing drum is controlled to gradually increase to a high rotation speed threshold; in the process of increasing the rotation speed of the washing drum, the clothing processing device determines the value of the high rotation speed threshold based on the vibration displacement S1 of the drum mouth end, the vibration displacement S2 of the drum bottom end and the swing angle of the outer drum 1.

[0115] Therefore, it is avoided that the washing drum is accelerated to a high rotation speed threshold which would cause the outer drum 1 to generate a large vibration.

[0116] In this embodiment, the dehydration program includes a washing drum acceleration rotation stage and a washing drum high-speed rotation stage performed in sequence; in the washing drum acceleration rotation stage, the outer drum 1 is continuously subjected to vibration displacement detection by the vibration detection device; each time the rotation speed of the washing drum increases by a first set rotation speed, the currently detected vibration displacement is recorded, and a vibration displacement increment is determined based on two adjacent recorded vibration displacements; an expected vibration displacement increment is determined based on the obtained multiple vibration displacement increments; the current vibration displacement of the outer drum 1 is summed with the expected vibration displacement increment to obtain an estimated vibration displacement; and based on the estimated vibration displacement, whether to execute an operation of reducing the rotation speed of the washing drum is controlled.

[0117] Specifically, the two estimated vibration displacements are obtained by the first vibration detection device 4 and the second vibration detection device 3 respectively. If the two estimated vibration displacements are both greater than the vibration displacement threshold, the operation of reducing the rotation speed of the washing drum is performed.

[0118] like Figure 5 As shown, in this embodiment, the specific process of the control method of the clothes processing device is as follows: start the dehydration program; the washing drum starts to accelerate and enters the low-speed rotation area of ​​the dehydration program: when the speed of the washing drum reaches a first set speed, the washing tub is subjected to vibration displacement detection to obtain the low-speed vibration displacement of the first vibration detection device and the second vibration detection device; if the low-speed vibration displacement is greater than the low-speed threshold, the washing drum is controlled to interrupt the current speed;

[0119] The washing tub is accelerated to the medium and low speed resonance zone of the dehydration program: the vibration displacement of the outer tub 1 is continuously detected by the vibration detection device; each time the rotation speed of the washing tub increases by the first set rotation speed, the currently detected vibration displacement is recorded, and the vibration displacement increment is determined according to the vibration displacements recorded twice adjacently; the expected vibration displacement increment is determined according to the obtained multiple vibration displacement increments; the current vibration displacement of the outer tub is summed with the expected vibration displacement increment to obtain the estimated vibration displacement; if the estimated vibration displacement is greater than the vibration displacement threshold, the operation of reducing the rotation speed of the washing tub is executed;

[0120] The washing drum is accelerated to the high-speed rotation stage: the first vibration detection device 4 obtains the vibration displacement S1 of the drum mouth end by detecting the drum mouth end of the outer drum 1; the second vibration detection device 3 obtains the vibration displacement S2 of the drum bottom end by detecting the drum bottom end of the outer drum 1; the outer drum swing angle is determined according to the drum mouth end vibration displacement S1, the drum bottom end vibration displacement S2 and the distance L; if the drum mouth end vibration displacement S1 is greater than the front displacement threshold, the drum bottom end vibration displacement S2 is greater than the rear displacement threshold and the outer drum swing angle is greater than the angle threshold, the washing drum is controlled to interrupt the current speed; otherwise, when it is judged that the washing drum is in the process of accelerating to the high speed threshold, the high speed threshold is adjusted according to the drum mouth end vibration displacement S1, the drum bottom end vibration displacement S2 and the outer drum swing angle, so that the washing drum rotates at the high speed threshold.

[0121] 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 clothes processing device, characterized in that: include: The drum assembly includes an outer drum and a washing drum which are coaxially arranged; A vibration detection device is arranged on the wall of the outer cylinder near the cylinder mouth and / or the cylinder bottom, and is used to detect the vibration displacement of the outer cylinder at the position where the vibration detection device is arranged; a rubber connector, at least partly located outside the tube opening of the outer tube and connected to the tube opening, wherein the rubber connector is deformed as the outer tube vibrates; The laundry processing device determines the swing angle of the outer drum according to the vibration displacement, thereby controlling the rotation process of the washing drum in the dehydration process.

2. A clothes processing device according to claim 1, characterized in that: The vibration detection device comprises: A first vibration detection device is arranged near the tube mouth of the outer tube and is used to detect the vibration displacement of the tube mouth end of the outer tube; A second vibration detection device is arranged near the bottom of the outer cylinder and is used to detect the vibration displacement of the bottom end of the outer cylinder; The connecting line between the first vibration detection device and the second vibration detection device is parallel to the central axis of the outer cylinder.

3. A clothes processing device according to claim 2, characterized in that: The first vibration detecting device and the second vibration detecting device are disposed above a horizontal plane passing through the central axis of the outer cylinder.

4. A control method for a clothes processing device according to any one of claims 1 to 3, characterized in that: During the high-speed rotation stage of the washing drum in the dehydration program, obtaining the vibration displacement detected by the vibration detection device; determining the swing angle of the outer cylinder according to the vibration displacement; The vibration displacement is compared with a displacement threshold, and the outer drum swing angle is compared with an angle threshold, and it is determined whether to control the washing drum to interrupt the current rotation speed according to the comparison result.

5. The control method of a clothes processing device according to claim 4, characterized in that: The vibration detection device includes a first vibration detection device and a second vibration detection device, and the distance between the first vibration detection device and the second vibration detection device is L; The first vibration detection device is arranged near the tube mouth of the outer tube, and is used to detect the vibration displacement S1 of the tube mouth end of the outer tube; The second vibration detection device is arranged near the bottom of the outer cylinder and is used to detect the vibration displacement S2 of the bottom end of the outer cylinder; The laundry processing device determines the swing angle of the outer drum according to the vibration displacement S1 of the drum mouth end, the vibration displacement S2 of the drum bottom end and the distance L.

6. A control method for a clothes processing device according to claim 5, characterized in that: The laundry equipment presets are: The first judgment condition is that the barrel end vibration displacement S1 is greater than the barrel end displacement threshold; The second judgment condition is that the vibration displacement S2 of the bottom end of the cylinder is greater than the cylinder bottom displacement threshold; The third judgment condition is that the swing angle of the outer cylinder is greater than the angle threshold; When it is detected that at least one of the first determination condition, the second determination condition and the third determination condition is reached, the washing tub is controlled to interrupt the current rotation speed.

7. The control method of a clothes processing device according to claim 4, characterized in that: The vibration detection device is provided with only one, which is located at the mouth end or the bottom end of the outer cylinder and is used to detect the vibration displacement of the outer cylinder at the mouth end or the bottom end of the outer cylinder; The laundry processing device compares the outer drum vibration displacement with the outer drum vibration threshold, and determines whether to control the washing drum to interrupt the current rotation speed according to the comparison result.

8. A control method for a clothes processing device according to any one of claims 4 to 7, characterized in that: The controlling the washing drum to interrupt the current rotation speed comprises: The running time of the dehydration program is counted. If the running time is greater than the set time value, the washing drum is controlled to reduce the speed and continue to rotate; otherwise, the washing drum is controlled to stop rotating, and then the redistribution operation of the clothes in the washing drum is performed.

9. The control method of a clothes processing device according to claim 6, characterized in that: If it is detected that the first determination condition, the second determination condition and the third determination condition are all not satisfied, controlling the rotation speed of the washing tub to gradually increase to a high rotation speed threshold; During the process of increasing the rotation speed of the washing drum, the clothes processing device determines the value of the high rotation speed threshold according to the vibration displacement S1 of the drum mouth, the vibration displacement S2 of the drum bottom and the swing angle of the outer drum.

10. A control method for a clothes processing device according to any one of claims 4 to 7 and 9, characterized in that: The dehydration procedure includes a washing drum accelerated rotation stage and a washing drum high-speed rotation stage which are performed in sequence; During the accelerated rotation stage of the washing tub, the vibration detection device continuously detects the vibration displacement of the outer tub; Each time the speed of the washing drum increases by a first set speed, the currently detected vibration displacement is recorded, and the vibration displacement increment is determined according to two adjacent recorded vibration displacements; determining an expected vibration displacement increment based on the obtained multiple vibration displacement increments; The current vibration displacement of the outer cylinder is summed with the expected increment of the vibration displacement to obtain an estimated vibration displacement; According to the estimated vibration displacement, whether to perform an operation of reducing the rotation speed of the washing tub is controlled.

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