CN101813543B - Method for detecting unbalance of displacement sensor for cylinder washing machine - Google Patents
Method for detecting unbalance of displacement sensor for cylinder washing machine Download PDFInfo
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Abstract
The invention discloses a method for detecting the unbalance of a displacement sensor for a cylinder washing machine. The washing machine in the method comprises a first elastically supported shock absorber and a second elastically supported shock absorber, wherein the second elastically supported shock absorber is provided with the displacement sensor. The method comprises the following steps of: reading a displacement amount of the cylinder from the displacement sensor and calibrating the displacement amount as a reference value when the washing machine drains off the water after washing and rinsing and is static before entering the dehydration process; reading a displacement amount of the cylinder from the displacement sensor when the second elastically supported shock absorber stretches to be longest and contracts to be the shortest in the process that the motor drives the cylinder to rotate at a distribution speed, and then calculating an average value of the displacement amounts; making a difference between the average value and the evaluated reference value to obtain a characteristic difference which represents the amount of unbalance in the cylinder by and detect the degree of unbalance in the inner cylinder; and further determining whether the washing machine enters to the hydration process in which the motor drives the cylinder to rotate at the hydration rotating speed on the basis of whether the unbalance degree in the cylinder exceeds a design allowance value.
Description
Technical field
The present invention relates to a kind of unbalanced method of laundry drum machine testing, while relating in particular to roller washing machine by testing, the displacement of cylinder detects the method for the amount of unbalance of load.
Background technology
Roller washing machine washing finish or rinsing finish after, enter by driven by motor in before the dehydration procedure that rotates with dehydrating speed of cylinder, need to cylinder undergarment be tried one's best and be distributed uniformly, prevent from causing the quality of whole cylinder load to have excessive imbalance because of the agglomerate that cylinder undergarment is wound around, kink forms, otherwise when driven by motor cylinder rotates with dehydrating speed, may cause the high vibration of machine or the collision of cylinder and casing even complete machine be shifted.This just need to, before entering dehydration procedure, detect the amount of unbalance of cylinder load.
The method of at present common detection amount of unbalance is: by cylinder in driven by motor, with distribution speed, rotated, in this process, detect respectively at cylinder undergarment and be attached at an inwall and the rotating speed of cylinder while rising with the rotation of cylinder and in while decline revolution of cylinder (or in the unit interval being conversed by rotating speed), and these two speed and setting speed are compared, thereby according to the size of difference value, judge the size of amount of unbalance; Wherein so-called distribution speed is to guarantee that cylinder undergarment can be attached at barrel and continue to rotate and the minimum speed that do not drop or than slightly high speed with cylinder while turning to peak with cylinder, all distribution speed values that can realize above-mentioned functions can form a distribution speed scope, and the distribution speed scope of common washing machine is generally 93rpm to 105rpm left and right.Adopting similar principles to detect unbalanced technology can be referring to Chinese patent application prospectus CN1240848.
In the prior art, because being the program design initial stage, the setting speed as criterion carries out lot of experiments demarcation definite value out for the counter structure of designed type, when therefore the arbitrary structures part of installing on to urceolus when the later stage changes, or during certain parts generation difference of installing on the parts in production run and initial design urceolus, all need the determining program of whole amount of unbalance again debug and setting speed is demarcated again; This will waste the plenty of time.And the unbalanced method of the detection of above-mentioned routine is indirect measurement method, it is subject to the kinematic train technical parameter of washing machine to affect larger, especially when machine used after a period of time, the performance parameter of kinematic train must have certain variation, cause and when the relation between the rotating speed of motor and the rotating speed of cylinder had just come into operation with respect to washing machine at that time, produce larger difference, this species diversity also can affect the rotating speed of motor and cylinder, now cause the factor of rotation speed change except the amount of unbalance of cylinder load, also have other important factors, now be mounted in the numerical value that motor place or the tachogenerator at cylinder place measure and all can not reflect truly again the amount of unbalance of washing machine drum load, therefore when the consistance of kinematic train technical parameter reduces gradually, the uneven consistance detecting can variation.This just may cause machine in load, to be no more than under the condition of specified amount of unbalance not entering mistakenly dehydration procedure; or in load, exceed under the condition of specified amount of unbalance and enter mistakenly dehydration procedure; and may cause machine start and stopping process in vibration during by resonant frequency section and twist excessively, machine construction and serviceable life are had a negative impact.
In prior art, pass through to detect in the unbalanced method of drum rotation speed indirect detection, be mostly the rotating speed definite value of demarcating in advance with the machine design production phase as comparison basis, inconsistent when having caused like this machine performance Parameter Conditions while detecting amount of unbalance in actual use and having demarcated comparison basis; Washing machine is in the whole life cycle of design, production, use, may there is continuous change in its performance parameter, the drum rotation speed when change of this performance parameter also can affect actual detection, and be just unalterable after demarcation under the performance parameter condition before washing machine dispatches from the factory as the tachometer value of comparison basis, so just may cause same amount of unbalance in different testing processes, to be detected as different results, i.e. the change of machine performance Parameter Conditions has affected the consistance of uneven testing result.
China patent application prospectus CN1690291A discloses a kind of Weighing method of roller washing machine.Displacement transducer and resiliency supported vibration damper are united two into one, and be installed between washing machine urceolus bottom and chassis base.Displacement transducer is also known as LOAD CELLS, for roller washing machine, be mostly to be used as to weigh before it, while putting into clothing in washing machine drum, can realize the load to cylinder and weigh by read the displacement of the cylinder load being embodied by the decrement of resiliency supported vibration damper from displacement transducer.CN1690291A discloses the principle of work of displacement transducer, the know-why of displacement that is read load by programming controller from displacement transducer and the washing machine of applying described displacement transducer.The present invention quotes in full in this this document to make reference.
Summary of the invention
In order to solve the prior art described in background technology, change to detect the drawback of unbalanced method by detecting drum rotation speed, when the present invention aims to provide a kind of roller washing machine and rotates by utilizing displacement transducer to detect cylinder, the displacement of up-down vibration detects unbalanced method.
The principle of work of described displacement transducer and read the know-why of displacement of load and the washing machine of applying described displacement transducer by programming controller from displacement transducer, all can be referring to the Chinese invention patent application prospectus CN1690291A described in background technology.
To achieve these goals, the technical solution used in the present invention is:
Provide a kind of laundry drum machine testing unbalanced method, wherein said roller washing machine comprises programming controller, casing, motor, urceolus, is arranged on the interior cylinder in described urceolus and is installed in the first resiliency supported vibration damper and the second resiliency supported vibration damper between urceolus bottom and chassis base, the second resiliency supported vibration damper is wherein with displacement transducer, and described method comprises the steps:
1) water in washing machine is emptying;
2) under static state, read and record the static displacement amount Ls of load by programming controller from displacement transducer, wherein said load is the total load that comprises put items in urceolus, interior cylinder and interior cylinder;
3) the interior cylinder by driven by motor washing machine rotates with distribution speed;
4) in the interior cylinder of washing machine rotates the process of a week, by programming controller, from displacement transducer, read and load on the second resiliency supported vibration damper and be stretched to displacement Lm when the longest and load on the second resiliency supported vibration damper and be compressed into displacement Ln the most in short-term, calculate and record the consecutive mean displacement La=(Lm+Ln)/2 loading in the process that interior cylinder rotates a week;
6) by programming controller, calculated the testing result Δ La=|La-Ls| of the amount of unbalance that embodies load;
7) by described step 6) in the Δ La that obtains compare with the criterion Δ L being preset in programming controller, if Δ La > Δ L, washing machine enters again and shakes loose, distribution program, after the laundry redistribution in described interior cylinder, again carry out described step 3) to step 7); If Δ La≤Δ L, described washing machine enters the dehydration procedure being rotated with dehydrating speed by the interior cylinder described in described driven by motor.
In order to get rid of in testing process the wild value of insignificant experiment of bringing due to various accidental interference or error, preferably, can be in above-mentioned steps 4) and 6) between following step 5 is set): 5) by step 4) repeatedly carry out at least 2 times, obtain at least 2 La values accordingly, the arithmetic mean of then calculating all La values
and in step 6) in, by step 5) in obtain
replace La, obtain testing result
in order to reach the effect of further filtering interfering value, more preferably, described step 5) can also arrange as follows: 5) by step 4) repeatedly carry out at least 4 times, obtain at least 4 La values accordingly, then adopt Mean Filtering Algorithm, calculate the arithmetic mean of all effective La values
and in step 6) in, by step 5) in obtain
replace La, obtain testing result
wherein said Mean Filtering Algorithm refers to general in the art filtering maximal value and minimum value in a plurality of sampled values, and asks for the algorithm of the arithmetic mean of all the other sampled values.Step 5 at above-mentioned employing Mean Filtering Algorithm), in, by after the maximal value in corresponding at least 4 the La values that obtain and minimum value filtering, all the other La values that remain are so-called " effectively La values ".
Above-mentioned steps 7) the criterion Δ L in can be following method determine:
Before washing machine dispatches from the factory, to putting into weight in cylinder, be no more than the washing machine that can guarantee that design allows and with dehydrating speed, normally carry out the uneven piece of the maximum amount of unbalance of dehydration procedure.Then according to above-mentioned, with method for detecting unbalance of displacement sensor, (can comprise various asking for
the method for optimizing of step), carry out step 2 wherein)---6), detect the feature difference Δ La that obtains this imbalance piece, the Δ La recording is defaulted in the programming controller of described washing machine as criterion Δ L.
The washing machine of applying detection method of the present invention should at least comprise casing, urceolus, be arranged on mechanical supporting device between casing and urceolus, be arranged on interior cylinder in urceolus, be arranged on motor and gearing thereof between casing and urceolus, be arranged on the electric control system of entering drainage mechanism and having programming controller on casing.
Mechanical supporting device comprises the first resiliency supported vibration damper and the second resiliency supported vibration damper being installed between urceolus bottom and the base of casing.The second resiliency supported vibration damper is wherein with displacement transducer, described displacement transducer by end with the cylinder block of abutment ring, be fixed on coil former on cylinder block axial line, be arranged on coil former peripheral part coil, be produced on coil interface that cylinder block outside is connected with coil, be sleeved in cylinder block and end is formed with the piston rod of abutment ring, the piston packing ring that is sleeved on the piston rod other end.Piston rod is made by ferromagnetic material, and its end is with the endoporus that can make coil former and coil turnover.
During work, with the coil former of the second resiliency supported vibration damper of displacement transducer and coil mounted thereto, insert in the endoporus of piston rod.When interior cylinder drives cylinder undergarment to rotate, existence due to laod unbalance, at cylinder undergarment, be attached at an inwall and stage of rising with the rotation of cylinder, the second resiliency supported vibration damper is stretched, at cylinder undergarment, be attached at an inwall and stage of declining with the rotation of cylinder, the second resiliency supported vibration damper is compressed.The second resiliency supported vibration damper is stretched or when compressed, between coil and ferromagnetic material piston rod, has produced relative displacement, and the inductance value of coil must change; So displacement is just detected by the change of winding inductance quantity.In like manner, when motor is then in cylinder while having the article such as clothing standing, be added in gravity on the second resiliency supported vibration damper that tilts to install and want large with respect to empty cylinder during without clothing, force the second resiliency supported vibration damper to lower compression; After balance and stability, when this decrement does not turn as motor, the static displacement amount of cylinder load also can not be detected by the change of winding inductance quantity.
Inventor is exactly the above-mentioned characteristic of utilizing displacement transducer, has invented method for detecting unbalance of displacement sensor for cylinder washing machine.
So just, realized roller washing machine and utilized displacement transducer to detect imbalance, and and then judged according to amount of unbalance whether washing machine can enter the dehydration procedure being rotated with dehydrating speed by cylinder in driven by motor.
Due to the unbalanced method of detection disclosed in this invention, in the process with the actual use of washing machine, static displacement amount Ls when cylinder is static is as the comparison basis of asking for uneven feature difference, this benchmark be each carry out detect before, with by than consecutive mean displacement
under the condition of identical machine performance parameter, demarcate; Even if so just guaranteed that project organization, the parts assembling of washing machine changes, or because of long-term use, some performance parameter changed, also can make the impact of this variation act on simultaneously Ls and
and then ask for Ls and
difference DELTA La time, this impact can farthest be offset, thereby has guaranteed the consistance of uneven testing result.
Method for detecting unbalance of displacement sensor for cylinder washing machine provided by the invention, displacement transducer and resiliency supported vibration damper are united two into one, the displacement variable of the calculated signals load recording by displacement transducer, more uneven according to displacement variable judgement.The apparatus structure of realizing described method is simple, low production cost, measuring accuracy is high and displacement measurement directly reflects actual amount of unbalance.Described method can be widely used in all kinds of roller washing machines.
Visible the method disclosed in the present has obvious beneficial effect with respect to common method of the prior art.
Accompanying drawing explanation
By reference to the accompanying drawings, advantage of the present invention will embody more significantly.In institute's drawings attached, identical mark represents identical parts below.
Fig. 1 is that the clothing in cylinder is attached at an inwall and view while rising with the rotation of cylinder in washing machine; What Reference numeral 1,2 was wherein indicated is the extension spring that the coefficient of stiffiness is identical or close, the 3rd, balancing weight, 4 is the first resiliency supported vibration damper (common not with the resiliency supported vibration damper of displacement transducer), and 5 is the second resiliency supported vibration damper (with resiliency supported vibration dampers of displacement transducer).
Fig. 2 is that the clothing in cylinder is attached at an inwall and view while declining with the rotation of cylinder in washing machine.
Fig. 3 is the structural representation with the resiliency supported vibration damper of displacement transducer.
Fig. 4 is the process flow diagram that washing machine is applied a kind of preferred version of the unbalanced method of detection disclosed in this invention.
Embodiment
The method disclosed in the present can be widely used in roller washing machine.The roller washing machine of application the method disclosed in the present, except comprising casing, interior cylinder, urceolus, motor and gearing thereof that common roller washing machine has conventionally, entering drainage mechanism and have the electric control system of programming controller, also comprise extension spring 1 as schematically shown in Fig. 1 and Fig. 2, hang spring 2, balancing weight 3, common not with the first resiliency supported vibration damper 4 of displacement transducer and with the second resiliency supported vibration damper 5 of displacement transducer.Wherein said extension spring 1 and to hang the coefficient of stiffiness of spring 2 close or equal, common resiliency supported vibration damper 4 and close or equal with the elastic anchorage force of the resiliency supported vibration damper 5 of displacement transducer.Can make like this cylinder left and right balance, the minimizing vibration of washing machine, and be of value to accurate that displacement detects.
Fig. 3 has schematically shown the structure with the second resiliency supported vibration damper of displacement transducer.It by end with the cylinder block 13 of abutment ring 12, be fixed on coil former 14 on the axial line of cylinder block 13, be arranged on coil former 14 peripheral parts coil 15, be produced on coil interface 16 that cylinder block 13 outsides are connected with coil 15, be sleeved in cylinder block 13 and end is formed with the piston rod 18 of abutment ring 17, the annular element 21 that is sleeved on the piston packing ring 19 of piston rod 18 other ends and is inlaid in this end.
Piston rod 18 is made by ferromagnetic material conventionally, has an endoporus 20 along bar central axis at piston rod 18 center, and coil former 14 and coil 15 can move freely in endoporus 20, at the embedded annular element of being made by ferromagnetic material 21 of front end of endoporus 20.Like this, just displacement transducer and resiliency supported vibration damper are united two into one, become the second resiliency supported vibration damper with displacement transducer, just do not need again adjacent or its elsewhere at resiliency supported vibration damper in order to detect vibration displacement separately to establish sensor.
When the second resiliency supported vibration damper 5 is stretched or compressed, displacement transducer can report to programming controller by the displacement of the load being embodied by amount of tension or decrement.The details step of the specific works principle of displacement transducer in this process and reading out data is referring to Chinese invention patent application prospectus CN1690291A." microprocessor " mentioned in this reference paper is equivalent to " programming controller " in the application.
With reference to figure 4, when application detection method disclosed in this invention, first should the water in cylinder in washing machine is emptying, in keeping, cylinder and cylinder undergarment remain static.Now due to the effect of cylinder undergarment gravity, the state with the resiliency supported vibration damper 5 of displacement transducer during with respect to empty cylinder can produce compression; By programming controller, by displacement transducer, read this decrement as static displacement amount Ls.
Then starter motor, drives interior cylinder to rotate with a certain speed within the scope of the distribution speed of 93rpm to 105rpm.In the every rotation of the interior cylinder process of a week, all exist a clothing to be as shown in Figure 1 attached at an inwall and the process that rises with the rotation of cylinder and clothing are as shown in Figure 2 attached at an inwall and the process that declines with the rotation of cylinder.Due to the effect of gravity and the inertia of cylinder undergarment, in uphill process, the second resiliency supported vibration damper 5 is stretched; In decline process, the second resiliency supported vibration damper 5 is compressed.Like this, in the every rotation of the cylinder process of a week, can by displacement transducer, read displacement Lm and the second resiliency supported vibration damper 5 that a second resiliency supported vibration damper 5 is stretched to when the longest by programming controller and be compressed to displacement Ln the most in short-term, then, the consecutive mean displacement La=(Lm+Ln)/2 in programming controller calculating recording drum rotation process.In order to prevent in carrying out the process of above-mentioned steps, because the reasons such as accidental interference or components and parts operating error cause Lm and the actual La value that causes obtaining not having practical significance of Ln value substantial deviation reading, can make cylinder rotate 8 to 10 weeks continuously, in this process, repeat above-mentioned steps, obtain 8 to 10 La values; Then adopt Mean Filtering Algorithm, the La value that filtering accidental error is wherein large, may not have practical significance, the some La values that now remain are effective La value; By programming controller, calculate and record again the arithmetic mean of all effective La values
common Mean Filtering Algorithm, filtering maximal value and minimum value in all sampled values, if sample in the present embodiment 8 to 10 La values are after so filtering, can obtain 6 to 8 effective La values, then the sampled value remaining (i.e. these 6 to 8 effective La values) is asked for to arithmetic mean, the average of these 6 to 8 effective La values
can reflect more accurately than the independent La value only obtaining the actual conditions of consecutive mean displacement in cylinder rotates the process of a week.
Obtain Ls value with
after value, calculate feature difference
because the most ideally, be evenly distributed, do not exist completely imbalance, the average of dynamic displacement if laundry machine barrel undergarment pastes an inwall completely
should equate with static displacement amount Ls; Amount of unbalance is less,
value is less with the difference of Ls; Amount of unbalance is larger,
value is larger with the difference of Ls.Therefore the feature difference Δ La in the present invention is exactly the value of energy reflected load amount of unbalance true to nature.
Then, Δ La and the criterion Δ L being preset in programming controller are compared:
If Δ La is greater than Δ L, think that the amount of unbalance in front roll is excessive, washing machine can not enter the dehydration procedure being rotated with dehydrating speed by cylinder in driven by motor, now programming controller instruction washing machine enters again and shakes loose, distribution program, this program is rotated or in the range of speeds close with distribution speed, does speed change and rotate with distribution speed by driven by motor cylinder, make clothing attach and be evenly distributed on inner wall of rotary drum, and the agglomerate of entanglement is shaken loose, to reduce the amount of unbalance of load integral body as far as possible.The program that similarly shakes loose, distributes is applied in common roller washing machine maturely.Through again shaking loose, after distribution program, washing machine is again carried out and is asked for as described above
and the program of Δ La.And so forth, until the up-to-date Δ La obtaining is not more than criterion Δ L.
When Δ La is not more than Δ L, think that the amount of unbalance in front roll meets the requirement of the dehydration procedure being rotated with dehydrating speed by cylinder in driven by motor, now programming controller instruction washing machine enters the dehydration procedure being rotated with dehydrating speed by cylinder in driven by motor.Described dehydrating speed be one while being much higher than washing of drum type washing machine and rinsing clothes in the rotational speed of drum rotation speed, it can be realized by driving cylinder undergarment with interior cylinder high-speed rotary then utilize centrifugal force that the most of moisture on clothing is dried.Common dehydrating speed is such as there not being 700rpm to 1500rpm not etc.
Preferably, can dispatch from the factory before payment at washing machine, by a large amount of simulated experiments, demarcate suitable Δ L value, and be preset in programming controller.Specifically can adopt with the following method:
In cylinder in washing machine, put into the uneven piece that weight is X, trial is rotated with dehydrating speed by cylinder in driven by motor, if washing machine security of operation in this process, steadily and all technical indicators normal, while illustrating thus in cylinder the amount of unbalance of uneven piece representative be this type washing machine in actual use can bear completely, and this type washing machine likely can also bear larger amount of unbalance, therefore can suitably increase gradually the weight X of uneven piece, then repeat above-mentioned experiment; If in experimentation washing machine occur to use such as reality in the unacceptable high vibration of user and cylinder collision casing various abnormal conditions such as complete machine displacement even, the amount of unbalance of the uneven piece representative while illustrating thus in cylinder has surpassed the design degree of admission of this type washing machine, now suitably reduce gradually the weight X of uneven piece, then repeat above-mentioned experiment; Until load have the washing machine of this imbalance piece be able to be steadily, normally with dehydrating speed, carry out dehydration procedure; Maximum amount of unbalance when now the weight X of uneven piece in cylinder has just represented the high rotating speed dehydration that this type machine design allows.Certainly, at the beginning of experiment, also can first pass through the calculating to the every structural parameters of washing machine and technical parameter, demarcate the possible range of suitable X value, to reduce the number of times that repeats experiment.
The weight obtaining with experiment is the amount of unbalance of tin undergarment of the uneven piece simulation of the maximum amount of unbalance X that allows of machine design while replacing that washing machine is actual to be used, carry out as abovely with method for detecting unbalance of displacement sensor, just can detect the feature difference Δ La of the maximum amount of unbalance X that this type machine design of embodiment allows; Δ La is now whether the suitable washing machine that judges can enter the criterion Δ L that carries out dehydration procedure with dehydrating speed.Again this Δ L value is preset in the programming controller of washing machine.
Above-described embodiment is illustrative to the displaying of the unbalanced method of laundry drum machine testing of the present invention, but not determinate.For those of skill in the art, can make various change and the adjustment of not leaving spiritual purport of the present invention, similarly change and protection domain that the technical scheme adjusted all defines in the claims in the present invention in.
Claims (5)
1. the unbalanced method of laundry drum machine testing, wherein said roller washing machine comprises programming controller, casing, motor, urceolus, is arranged on the interior cylinder in described urceolus and is installed in the first resiliency supported vibration damper and the second resiliency supported vibration damper between described urceolus bottom and described chassis base, wherein said the second resiliency supported vibration damper is with displacement transducer, it is characterized in that, described method comprises the steps:
1) water in described washing machine is emptying;
2) under static state, read and record the static displacement amount Ls of load by described programming controller from described displacement transducer, wherein said load is the total load that comprises put items in described urceolus, interior cylinder and interior cylinder;
3) the interior cylinder by washing machine described in described driven by motor rotates with a certain speed within the scope of distribution speed;
4) in the interior cylinder of described washing machine rotates the process of a week, by described programming controller, from described displacement transducer, read and described load on that the second described resiliency supported vibration damper is stretched to displacement Lm when the longest and described the second described resiliency supported vibration damper that loads on is compressed into displacement Ln the most in short-term, described in calculating and recording, load on the consecutive mean displacement La=(Lm+Ln)/2 in the process that described interior cylinder rotates a week;
6) by described programming controller, calculated the testing result Δ La=|La-Ls| of the amount of unbalance that embodies described load;
7) by described step 6) in the Δ La that obtains compare with the criterion Δ L being preset in programming controller, if Δ La> Δ L, washing machine enters again and shakes loose, distribution program, after the laundry redistribution in described interior cylinder, again carry out described step 3) to step 7); If Δ La≤Δ L, described washing machine enters the dehydration procedure being rotated with dehydrating speed by the interior cylinder described in described driven by motor;
Step 7 wherein) the criterion Δ L described in determines according to following method: before described washing machine dispatches from the factory, in the interior cylinder of described washing machine, placing weight is the uneven piece of X, then carry out described step 2) to 6), and using described step 6) in the testing result Δ La that obtains as described criterion Δ L, default in the programming controller of described washing machine; The maximum amount of unbalance that when washing machine described in the weight X of wherein said uneven piece is no more than is normally carried out dehydration procedure with dehydrating speed, design is allowed.
2. the unbalanced method of laundry drum machine testing as claimed in claim 1, is characterized in that:
In described step 4) and 6) between, following step 5 is also set): 5) by step 4) repeatedly carry out at least 2 times, at least 2 La values accordingly obtained, the arithmetic mean of then calculating all La values
And in described step 6) in, by described step 5) in obtain
replace La, obtain testing result
3. the unbalanced method of laundry drum machine testing as claimed in claim 1, is characterized in that:
In described step 4) and 6) between, following step 5 is also set): 5) by step 4) repeatedly carry out at least 4 times, obtain at least 4 La values accordingly, then adopt Mean Filtering Algorithm, calculate the arithmetic mean of all effective La values
And in described step 6) in, by described step 5) in obtain
replace La, obtain testing result
4. the unbalanced method of laundry drum machine testing as claimed in claim 3, is characterized in that: in described step 5) in, repeatedly carry out described step 4) number of times be 8 to 10 times, obtain corresponding 8 to 10 La values.
5. the unbalanced method of laundry drum machine testing as described in any one in claim 1 to 4, is characterized in that: wherein said distribution speed scope is 93rpm to 105rpm.
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| CN104652093A (en) * | 2013-11-25 | 2015-05-27 | 海尔集团公司 | Washing machine with eccentric detecting function and eccentric detecting method |
| CN104652092B (en) * | 2013-11-25 | 2018-02-23 | 青岛海尔洗衣机有限公司 | A kind of eccentric detection method of automatic washing machine |
| CN107941420A (en) * | 2017-10-23 | 2018-04-20 | 珠海格力电器股份有限公司 | Judge whether laundry facilities places method, apparatus, medium and the equipment of balance |
| CN109092573B (en) * | 2018-10-08 | 2024-01-30 | 中国工程物理研究院总体工程研究所 | Vibration reduction geotechnical centrifuge suitable for triaxial shaking table |
| CN112411126A (en) * | 2020-10-09 | 2021-02-26 | 珠海格力电器股份有限公司 | Method and device for leveling load in barrel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1611662A (en) * | 2003-10-30 | 2005-05-04 | 乐金电子(天津)电器有限公司 | Clothing amount and eccentric value detecting device for drum washing machine and method thereof |
| CN1690291A (en) * | 2004-04-22 | 2005-11-02 | 海尔集团公司 | Washing machine weighing method and washing machine for realizing the method |
| CN2869081Y (en) * | 2004-09-06 | 2007-02-14 | 松下电器产业株式会社 | Washing machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3173079B2 (en) * | 1991-12-02 | 2001-06-04 | 松下電器産業株式会社 | Drum type washing machine |
| JP2004275496A (en) * | 2003-03-17 | 2004-10-07 | Toshiba Corp | Washing machine |
-
2009
- 2009-02-20 CN CN200910009165.4A patent/CN101813543B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1611662A (en) * | 2003-10-30 | 2005-05-04 | 乐金电子(天津)电器有限公司 | Clothing amount and eccentric value detecting device for drum washing machine and method thereof |
| CN1690291A (en) * | 2004-04-22 | 2005-11-02 | 海尔集团公司 | Washing machine weighing method and washing machine for realizing the method |
| CN2869081Y (en) * | 2004-09-06 | 2007-02-14 | 松下电器产业株式会社 | Washing machine |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2004-275496A 2004.10.07 |
| JP特开平5-154275A 1993.06.22 |
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Effective date of registration: 20160713 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Patentee after: Qingdao Haier Washing Machine Co., Ltd. Address before: 266000 Haier Industrial Park, 1 Haier Road, hi tech park, Laoshan District, Shandong, Qingdao Patentee before: haier group corporation Patentee before: Qingdao Haier Washing Machine Co., Ltd. |