CN101173453A - Dewatering method for drum washing machine - Google Patents
Dewatering method for drum washing machine Download PDFInfo
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- CN101173453A CN101173453A CNA200610016437XA CN200610016437A CN101173453A CN 101173453 A CN101173453 A CN 101173453A CN A200610016437X A CNA200610016437X A CN A200610016437XA CN 200610016437 A CN200610016437 A CN 200610016437A CN 101173453 A CN101173453 A CN 101173453A
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- 238000005406 washing Methods 0.000 title claims abstract description 261
- 238000000034 method Methods 0.000 title claims abstract description 72
- 230000018044 dehydration Effects 0.000 claims abstract description 40
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 40
- 230000008569 process Effects 0.000 claims abstract description 29
- 238000012360 testing method Methods 0.000 claims description 20
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 2
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 15
- 238000004140 cleaning Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000003599 detergent Substances 0.000 description 6
- 101100361281 Caenorhabditis elegans rpm-1 gene Proteins 0.000 description 5
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- 238000001035 drying Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000703 high-speed centrifugation Methods 0.000 description 2
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Abstract
The invention relates to a dehydration method for a cylinder washing machine; wherein the eccentric magnitude of the single load in the cylinder is detected and if the eccentric magnitude is above the set value, the cylinder can be rotated at a high speed through a motor to do centrifugal dewatering for the single load. The invention is characterized in that before the eccentricity detecting, the motor is accelerated and decelerated repeatedly in the washing packet flowing rpm interval and the washing packet in execution is opened. At a timing point in the washing packet opening process, the cylinder velocity deviation based on single load eccentric magnitude is detected repeatedly. If no velocity deviation in the set value is detected in the repeatedly times setting process at the washing packet opening process, the single load will get centrifugal dewatering. The invention has the advantages that the single load can be conveniently and accurately divided into long single load and short single load according to the velocity deviation detection value, thus the best dehydration method is determined for the long single load and the short single load.
Description
Technical field
The present invention relates to a kind of dewatering of roller washing machine, when relating to a kind of washing bag of in cylinder, throwing in or rather and be single load, according to the length that above-mentioned washing bag launches, above-mentioned single load can be divided into the invention of the long single load and the dewatering aspect of the roller washing machine of short single load.
Background technology
In general, washing machine is the effect that utilizes water and washing agent, in order to remove the dirt that speckles with in clothes, the pillow etc. (hereinafter referred to as ' washing bag '), washing is wrapped the device of cleaning by strokes such as washing, cleaning, dehydration, oven dry.
Fig. 1 is the sectional view of the internal structure of general roller washing machine.
As shown in Figure 1, include following several sections in the general roller washing machine: the housing 2 that forms outward appearance; In the inboard of above-mentioned housing 2, support by spring 4 and shock absorber 6 available buffers, and be used to hold the wash bucket 8 of washings; The rotatable inboard that is installed on above-mentioned wash bucket 8, its outer peripheral face are formed with a plurality of water hole 10A, and are used to hold the cylinder 10 of washing bag; Be installed on the medial surface of above-mentioned cylinder 10, when above-mentioned cylinder 10 rotates, drop for washing is wrapped under the gravity effect, and will wash the lifting device 12 that bag rises to certain altitude; Be installed on the back quadrate part of above-mentioned wash bucket 8, and be used for transmitting the motor 14 of revolving force to above-mentioned cylinder 10; Be installed on the place ahead of above-mentioned housing 2, and form the case lid 16 that washing contracts out inlet 16A in central authorities; But turn be installed on above-mentioned case lid 16, and be used to open and close the door 18 that above-mentioned washing contracts out inlet 16A; Be arranged at the upside of above-mentioned case lid 16, be used to show the driving condition of roller washing machine 1, and regulate the control panel 20 of the operation of roller washing machine 1; Be installed on a side of above-mentioned motor 14, be used to detect the rpm of above-mentioned motor 14 and a plurality of Hall elements 22 of the anglec of rotation.
The top placement of above-mentioned housing 2 is equipped with top board 24, for from the water source of outside to the internal feed water of wash bucket 8, the downside of above-mentioned top board 24 is equipped with waterworks 30, above-mentioned waterworks 30 are made of water hose 26 and feed-water valve 28.Connection is equipped with detergent delivery device 32 on the feedwater stream of above-mentioned waterworks 30, and above-mentioned detergent delivery device 32 is used for the water of washing agent with the inside that supplies to wash bucket 8 is mixed, and together supplies to the inside of above-mentioned wash bucket 8.
For will wash and operation such as cleaning in the washings that use discharge to the outside, the downside of above-mentioned wash bucket 8 is equipped with drainage arrangement 40, above-mentioned drainage arrangement 40 is made of scupper hose 34, draining pump 36 and bellows drainpipe 38.
Phase place according to above-mentioned motor 14 changes, and a plurality of Hall elements 22 will produce pulse (Pulse) signal, and will detect the rpm and the anglec of rotation of motor 14 by above-mentioned pulse signal.
Below, will describe the operation of the general roller washing machine of structure as mentioned above.
At first, after opening door 18, contract out inlet 16A by washing and throw in the washing bag, close above-mentioned door 18 then, contract out inlet 16A thereby seal above-mentioned washing to the inside of cylinder 10.And,, throw in the washing agent of appropriate amount to detergent delivery device 32 according to the kind and the washing bag amount of the washing bag of throwing in the above-mentioned cylinder 10.
Then, when above-mentioned roller washing machine 1 drives, the washing bag amount of the washing bag of throwing in the above-mentioned cylinder 10 will be detected, and according to washing methodss such as above-mentioned detected washing bag amount setting washing stroke, wash time, feed water level regulation, detergent amounts, and will be according to above-mentioned washing methods head roll washing machine 1.
That is, by the internal feed water of waterworks 30 to wash bucket 8, and the washing agent of rendering to above-mentioned detergent delivery device 32 will mix with the water of supplying with by above-mentioned waterworks 30, and together supply to the inside of above-mentioned wash bucket 8.
In above-mentioned wash bucket 8, after washings arrive set water level, above-mentioned cylinder 10 will be rotated by motor 14.At this moment, after will wash bag and rise to certain altitude by the lifting device of installing in the above-mentioned cylinder 10 12, under the gravity effect, drop, and utilize drop power and remove the dirt of washing in wrapping with the interaction of washings.
When above-mentioned washing stroke finishes, the contaminated washings in the above-mentioned wash bucket 8 will be discharged to the outside of washing machine by drainage arrangement 40.
Subsequently, above-mentioned roller washing machine 1 will repeatedly clean stroke, and above-mentioned cleaning stroke is used for cleaning the residual foam of washing bag.That is, by the internal feed clean water of above-mentioned waterworks 30 to above-mentioned wash bucket 8, after arriving set water level, cylinder 10 will be rotated by above-mentioned motor 14, and clean the washing bag, and the water after the above-mentioned cleaning will be discharged to the outside by drainage arrangement 40.
Above-mentioned when repeatedly cleaning stroke and finishing, above-mentioned cylinder 10 will be rotated, and make the complete centrifugal dehydration of aqueous vapor in the washing bag at a high speed by motor 14.Under the situation of the roller washing machine 1 that is provided with drying unit, also will carry out drying stroke.
The chart of Fig. 2 motor rpm corresponding when being the dehydration stroke of roller washing machine of the prior art with the time.
Below, will the dewatering of roller washing machine of the prior art be described.
Include in the dewatering of above-mentioned roller washing machine: for dewatering time or the dehydration rpm that determines the best, and the washing bag amount of the washing bag amount of the washing bag that detection is used to dewater detects step; For the bag that enters or wash that determines main dehydration is untied, and detect eccentric eccentricity detecting step; After washing bag amount detection or eccentricity detecting, with the main dehydration of motor 14 High-speed Control.
As shown in Figure 2, when washing or the end of cleaning stroke, will carry out 2 washing bag amounts successively and detect (a interval) and the eccentricity detecting more than 1 time (b interval).
Detect in (a interval) at above-mentioned washing bag amount, it is the 1st to set rpm (rpm1) that motor 14 is quickened, and is reaching the 1st when setting rpm (rpm1), will keep the above-mentioned the 1st and close above-mentioned motor 14 after setting rpm (rpm1).
At this moment, be maintained the above-mentioned the 1st pulsewidth modulation (PWM) duty (duty) value when setting rpm (rpm1), and above-mentioned motor 14 cuts out the later surplus energy anglec of rotation, and detect the washing bag amount that washing is wrapped by detecting constant speed.
In addition, in above-mentioned eccentricity detecting (b interval), motor 14 is quickened to set rpm (rpm2) for setting the 2nd of rpm (rpm1) greater than the above-mentioned the 1st, and when reaching the 2nd setting rpm (rpm2), close above-mentioned motor 14 after will keeping above-mentioned the 2nd setting rpm (rpm2), thereby will be maintained the above-mentioned the 2nd rpm variation (rpm ripple) when setting rpm (rpm2) by constant speed, and detect the off-centre of washing bag.
Detected off-centre is setting value when above in above-mentioned eccentricity detecting (b interval), and in order to remove off-centre, above-mentioned roller washing machine 1 will be carried out the washing bag and untie (c interval), and then the execution eccentricity detecting (b ').
On the contrary, in initial eccentricity detecting (b interval) detected off-centre or above-mentioned washing bag untie after (c interval) detected off-centre for setting value in the time, above-mentioned roller washing machine 1 will make above-mentioned motor 14 quicken to set rpm (rpm3) for setting the 3rd of rpm (rpm2) greater than the above-mentioned the 2nd, and the washing bag is carried out the high speed centrifugation dehydration.
In above-mentioned main dehydration (d interval), will use the best dewatering time or the dehydration rpm that detect detected washing bag amount in (a interval) based on above-mentioned washing bag amount.
But, in the dewatering of the roller washing machine of prior art, the washing bag of throwing in above-mentioned cylinder 10 is under the situation by the single single load that constitutes, the time that eccentricity detecting (b interval) and washing bag are untied (c interval) will significantly increase, thereby it is oversize to cause entering into the main time of dewatering.
That is, according to washing bag amount, the washing bag of throwing in the above-mentioned cylinder 10 can be divided into a large amount of loads, middle amount load and load in a small amount, includes the single load that is made of single washing bag in the above-mentioned a small amount of load.
According to the length that the washing bag launches, above-mentioned single load can be divided into long single load and short single load.Wherein, the single load of above-mentioned length is meant, expands into the above single load of radial height of above-mentioned cylinder 10; The single load of above-mentioned weak point is meant, expands into the following single load of radial height of above-mentioned cylinder 10.
More specifically, in order under the state of the inner peripheral surface of being close to above-mentioned cylinder 10, to launch fully, at the radial direction of above-mentioned cylinder 10, launch to the radius that more is higher than above-mentioned cylinder 10, the single load of above-mentioned length is 1/2 a washing bag greater than interior all peripheral lengths of above-mentioned cylinder 10.In order under the state of the inner peripheral surface of being close to above-mentioned cylinder 10, to launch fully, radial direction at above-mentioned cylinder 10, launch to the radius that more is lower than above-mentioned cylinder 10, the single load of above-mentioned weak point is 1/2 a washing bag less than interior all peripheral lengths of above-mentioned cylinder 10.
Therefore, above-mentioned length is single to load on the washing bag when untiing, if launch to the circumferencial direction lengthening at the inner peripheral surface of above-mentioned cylinder 10, can remove eccentric state, and enter dehydration.But, under the situation of the single load of above-mentioned weak point, untie (c interval) and eccentricity detecting (b interval) even wash bag for several times repeatedly, also will keep eccentric state in the inside of above-mentioned cylinder 1 ().
In addition, in the dewatering of the roller washing machine of prior art, if after washing bag is untied (c interval) and eccentricity detecting (b interval) and is carried out set point number repeatedly, when also not removing eccentric state, to judge that the washing bag of throwing in the above-mentioned cylinder 10 is single load, and force to enter into main dehydration.
Therefore, under the situation of the single load of above-mentioned weak point, untie (c interval) and eccentricity detecting (b interval), will cause the whole dewatering time of roller washing machine 1 to prolong, thereby make the user feel discontented owing to carry out unnecessary washing bag repeatedly with set point number.
Because the time lengthening of the single load of above-mentioned judgement washing bag, and fail accurately to judge above-mentioned single load and still lack single load for long single load, thereby can't carry out the dehydration stroke of above-mentioned washing bag with the dewatering of the best, and, to weaken the vibration characteristics of the roller washing machine 1 in the main dehydration, thereby make the bigger vibration of generation in the above-mentioned roller washing machine 1.
And, washing bag in prior art is untied in (c interval), change with set point number making the direction of rotation of above-mentioned cylinder 10, and reduce to wash the offset of bag, thereby will produce above-mentioned cylinder 10 rotations and not wash the interval that bag is untied than slow or stop etc., and will cause reducing the effect that the washing bag is untied, and the time of untiing is wrapped in the washing of corresponding lengthening.
And, untie (c interval) when carrying out at above-mentioned washing bag with set point number, will with the eccentric state of above-mentioned washing bag irrelevant enter into eccentricity detecting of the prior art (b interval) automatically, thus, make above-mentioned eccentricity detecting fail to carry out, and cause the increase of eccentricity detecting number of times in suitable period.
This shows that the dewatering of above-mentioned existing roller washing machine still has many defectives, and demands urgently being improved.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcome the defective of the dewatering existence of existing roller washing machine, and provide a kind of dewatering of improved roller washing machine, make it when the washing bag of throwing in cylinder is single load, length according to above-mentioned washing bag expansion, above-mentioned single load can be divided into long single load and short single load, and according to the kind of above-mentioned single load with the method for the best stroke that dewaters, thereby can shorten dewatering time.
The present invention solves its technical problem underlying and realizes by the following technical solutions.The dewatering of the roller washing machine that proposes according to the present invention, in the present invention, detect the offset of the single load of throwing in the cylinder, and offset for the setting value in the time, above-mentioned cylinder will rotate at a high speed by motor, and single load carried out centrifugal dehydration, it is characterized in that: before above-mentioned eccentricity detecting, above-mentioned motor flows between the rpm interval at the washing bag, quicken repeatedly and slow down and the washing bag of carrying out washing bag is untied, separate certain time point in the open procedure at above-mentioned washing bag, detect velocity deviation repeatedly based on the cylinder of the offset of single load, when separating open procedure at above-mentioned washing bag and carry out not detecting in the process of set point number setting value with interior velocity deviation repeatedly, above-mentioned single load will obtain centrifugal dehydration.
The present invention solves its technical problem and can also adopt following technical measures further to realize.
Before the described washing bag rpm that flows be that washing wraps in the minimum rpm that flows about the central shaft of above-mentioned cylinder and washing and packs tightly rpm interval between the minimum rpm that the inner peripheral surface that is affixed on above-mentioned cylinder do not drop, separate in the open procedure at above-mentioned washing bag, after will speed up the minimum rpm that above-mentioned washing bag do not drop, decelerate to the minimum rpm that above-mentioned washing bag flows.
Before described washing bag separate the time point that accelerates to the minimum rpm that above-mentioned washing bag do not drop in the open procedure, will carry out above-mentioned velocity deviation testing process.
Before described velocity deviation be washings when being raised drum speed and the velocity deviation between the drum speed of washings when dropping, detected velocity deviation is in the reference speed deviation time in above-mentioned velocity deviation testing process, will enter into eccentricity detecting.
Preceding described washing bag is separated open procedure and is carried out the 1st set point number repeatedly to identical direction of rotation, and with the 2nd set point number conversion direction, above-mentioned velocity deviation testing process will be separated at above-mentioned washing bag and be detected respectively when open procedure is carried out repeatedly.
Before described some at least when detected velocity deviation in above-mentioned velocity deviation testing process in be in the reference speed deviation time, be the single load of length that is deployed into more than the radial height of above-mentioned cylinder with the above-mentioned single load of judgement; When detected velocity deviation in the testing process in above-mentioned velocity deviation is the reference speed deviation when above, will judge that above-mentioned single load is to be deployed into the radial height of above-mentioned cylinder with the single load of interior weak point.
Preceding described when judging above-mentioned single load for the single load of length, enter into eccentricity detecting; When judging above-mentioned single load, enter into dehydration for the single load of weak point.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, the present invention is owing to adopt technique scheme, make it before eccentricity detecting, motor will flow between the rpm interval at the washing bag, quicken repeatedly and slow down and carry out washing bag and untie with set point number, and separate certain time point in the open procedure at above-mentioned washing bag and detect velocity deviation based on the cylinder of the offset of single load, when separate at above-mentioned washing bag open procedure carry out repeatedly not detecting in the process of set point number velocity deviation for setting value in the time, to judge that above-mentioned single load is short single load, and carry out centrifugal dehydration, thus, in the present invention, by the detected value of above-mentioned velocity deviation, above-mentioned single load can be divided into accurately long single load and short single load, and carry out dehydration with the method for the best according to the kind of above-mentioned single load.
And, in the present invention, when detected velocity deviation in above-mentioned velocity deviation testing process is in the reference speed deviation, and when judging above-mentioned single load for short single load, the eccentricity detecting step of single load will be saved, and directly enter main dehydration, thus, can significantly shorten the dehydration entry time of the single load of above-mentioned weak point.
In sum, the present invention really belongs to innovation on the kenel of space, and has the multinomial effect of enhancement than existing product, and method is simple, is suitable for practicality, has the extensive value of industry.It is in limited field, technical development space, no matter structurally or bigger improvement all arranged on the function, and have large improvement technically, and produced handy and practical effect, and has the effect of enhancement really, thereby being suitable for practicality more, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction partly of technical solution of the present invention feature, for making the professional and technical personnel can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the sectional view of the internal structure of general roller washing machine.
The chart of Fig. 2 motor rpm corresponding when being the dehydration stroke of roller washing machine of the prior art with the time.
The chart of Fig. 3 motor rpm corresponding when being the dehydration stroke of the roller washing machine among the present invention with the time.
Fig. 4 is the flow chart of the dewatering of the roller washing machine among the present invention.
Fig. 5 is the reference diagram of single load detection method that is used for illustrating the dewatering of roller washing machine of the present invention.
Fig. 6 is the figure of single load detection method that is used for illustrating the dewatering of roller washing machine of the present invention.
Fig. 7 is the reference diagram of single load washing bag unpacking method that is used for illustrating the dewatering of roller washing machine of the present invention.
Fig. 8 is the chart of single load region separating method that is used for illustrating the dewatering of roller washing machine of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its specific embodiment, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
The symbol description * * * of * * accompanying drawing major part
2: housing 4: spring
6: shock absorber 8: wash bucket
10: cylinder 12: lifting device
14: motor 16: case lid
18: door 20: control panel
22: Hall element 24: top board
26: water hose 28: feed-water valve
30: waterworks 32: detergent delivery device
34: scupper hose 36: draining pump
38: bellows drainpipe 40: drainage arrangement
50: washing bag 52: long single load
54: short single load A: maximum load points
B: central shaft C: the mobile rpm of washing bag
See also Fig. 3 to shown in Figure 8, the dewatering of the roller washing machine among the present invention, it includes following several steps: whether the washing bag 50 that detects the inside input of cylinder 10 is the single load detection step (e interval) of single load; When judging that above-mentioned washing bag 50 is under the situation of single load, will be when untiing above-mentioned washing bag 50, the single load washing bag that enters of decision eccentricity detecting is untied step (f and f ' interval); Detect the off-centre of above-mentioned washing bag 50, and the main dehydration of decision enter or wash the single load eccentricity detecting step (g and g ' interval) that bag is untied; When removing the eccentric of above-mentioned washing bag 50 or judging under the situation of above-mentioned washing bag 50 for short single load, with the main dehydration (h interval) of High-speed Control motor 14.
Wherein, in above-mentioned single load detection step (e interval),, insert and setting duty (D to above-mentioned motor 14 at the dehydration stroke initial stage
0) the voltage of voltage ratio correspondence after, detect the rotation number of above-mentioned cylinder 10 with certain hour, and judge whether the washing bag of throwing in the above-mentioned cylinder 10 50 is single load (with reference to S1, S2, S3).
As mentioned above, in motor 14 to set duty (D
0) when inserting voltage, above-mentioned motor 14 will generate and the proportional starting torque of voltage (torque) that inserts, the starting torque of above-mentioned motor 14 will send above-mentioned cylinder 10 to, and above-mentioned cylinder 10 will be rotated according to the load torque of washing bag 50 or its rotation is limited.
In addition, as shown in Figure 5 and Figure 6, increase load capacity along with throw in washing bag 50 in above-mentioned cylinder 10, above-mentioned cylinder 10 will increase its load torque.When the washing bag 50 of rendering to above-mentioned cylinder 10 reaches maximum load points (A) when above, even load capacity increases, its load torque will reduce.
Thus, the load torque of above-mentioned washing bag 50 and load capacity are reaching between the maximum load points (A) linear change, below above-mentioned maximum load points (A), can go out the load capacity of the washing bag of throwing in the above-mentioned cylinder 10 50 by the load torque indirect detection of above-mentioned washing bag 50.
[mathematical expression 1]
Load torque＜electric motor starting moment of torsion ∝ motor inserts electric current ∝ motor and inserts voltage ∝ duty (D)
Shown in mathematical expression 1, the electric current that inserts in the starting torque of above-mentioned motor 14 and the above-mentioned motor 14 is proportional, and it is proportional that above-mentioned motor inserts the voltage that inserts in electric current and the above-mentioned motor 14, and above-mentioned motor inserts being in proportion of voltage and above-mentioned duty (D).
Above-mentioned service voltage is the voltage that inputs to roller washing machine 1 from external power source, and its phase inverter (Inverter) of installing by the inside of roller washing machine 1 changes duty (D), and changes the size of voltage.
Above-mentioned duty (D) is the voltage ratio that inserts in the above-mentioned motor 14, particularly, and above-mentioned setting duty (D
0) be the setting value that the washing bag 50 thrown in judging above-mentioned cylinder 10 uses when whether being single load.
That is, in above-mentioned single load detection step (e interval), will insert in the above-mentioned motor 14 and above-mentioned setting duty (D
0) corresponding motor inserts voltage, the starting torque of a certain size that generates by above-mentioned motor 14 will send above-mentioned cylinder 10 to.
At this moment, the Hall element 22 of above-mentioned motor 14 will produce pulse (Pulse) signal according to the phase place variation of motor 14, and will detect the rpm of motor 14, the anglec of rotation of motor 14 and the rotation number of cylinder 10 by the umber of pulse (P) of above-mentioned pulse signal.
Thus, in above-mentioned motor 14, insert setting voltage after, when detecting the umber of pulse (P) of above-mentioned Hall element 22, by more above-mentioned umber of pulse (P) and reference pulse number (P with setting-up time
0), can judge whether the washing bag of throwing in the above-mentioned cylinder 10 50 is single load.
Said reference umber of pulse (P
0) be that the washing bag of throwing in above-mentioned cylinder 10 50 is when having the single load of ultimate load, in above-mentioned motor 14, insert and setting duty (D
0) behind the corresponding voltage, with the umber of pulse (P) of the detected above-mentioned Hall element 22 of certain hour.That is, the umber of pulse of above-mentioned Hall element 22 (P) expression is with the rotation number of the cylinder 10 of setting-up time rotation, said reference umber of pulse (P
0) the benchmark rotation number of cylinder 10 when being illustrated in washing bag 50 for single load with ultimate load.
Thus, when above-mentioned umber of pulse (P) greater than reference pulse number (P
0) time, will judge that above-mentioned washing bag 50 is single load; When above-mentioned umber of pulse (P) less than reference pulse number (P
0) time, will judge that above-mentioned washing bag 50 is non-single load.
Specifically illustrating, carry out when rotation 1 time at above-mentioned cylinder 10, is in ' 40 ' the roller washing machine 1, as said reference umber of pulse (P by above-mentioned Hall element 22 detected umber of pulses (P)
0) be set at ' 40 ', and detect above-mentioned umber of pulse (P) for ' 30 ' time, because the load capacity of above-mentioned washing bag 50, will judge that above-mentioned washing bag 50 is non-single load greater than the ultimate load of single load; As said reference umber of pulse (P
0) be set at ' 40 ', and detect above-mentioned umber of pulse (P) and be
In the time of ' 50 ',, the load capacity of above-mentioned washing bag 50 is single load because, will judging above-mentioned washing bag 50 less than the ultimate load of single load.
That is, when below cylinder in setting-up time 10 rotates with 1 time, being rotated, will be judged as non-single load; And in setting-up time when more being rotated, will be judged as single load than 1 rotation.
Above-mentioned setting-up time and reference pulse number (P
0) can be with according to the dehydration conditions of roller washing machine 1 and various the change.
Thus, the time that is used to judge the single load of the washing bag 50 that throw in the inside of above-mentioned cylinder 10 will significantly shorten than judgement time of the prior art, and, owing to prejudge out single load at the above-mentioned dehydration stroke initial stage, the dewatering that can the be suitable for single load stroke that dewaters.
Untie in the step (f and f ' interval) at above-mentioned single load washing bag, will carry out the washing bag simultaneously and separate open procedure and velocity deviation testing process.Separate in the open procedure at above-mentioned washing bag, above-mentioned motor 14 will flow between rpm (C) interval producing the washing bag that the washing bag flows, and quickens repeatedly and slows down, and untie washing bag 50 in order to remove off-centre; In above-mentioned velocity deviation testing process, the time point of finishing in the acceleration of above-mentioned motor 14, detect the velocity deviation (V) of the above-mentioned cylinder 10 corresponding, and will determine whether enter (with reference to S4, S5, S6, S7, S8, S9, the S10) of above-mentioned single load eccentricity detecting step (g and g ' interval) with the deviation of washing bag 50.
The mobile rpm (C) of above-mentioned washing bag is the rpm interval that washing bag 50 flows and unties above-mentioned washing bag 50 by the rotation of above-mentioned cylinder 10, above-mentioned motor 14 will speed up as above-mentioned washing bag flow rpm (C) maximum rpm the 5th set rpm (rpm5) after, decelerate to as above-mentioned washing bag flow rpm (C) minimum rpm the 4th set rpm (rpm4), and the washing bag of carrying out above-mentioned washing bag 50 is separated ON operation.
As shown in Figure 7, the above-mentioned the 4th to set rpm (rpm4) be cylinder 10 when being rotated, the minimum rpm that washing bag 50 flows to the right from the left side of central shaft (B); The above-mentioned the 5th to set rpm (rpm5) be cylinder 10 when being rotated, the minimum rpm that washing bag 50 inner peripheral surfaces of being close to cylinder 10 do not break away from.
Above-mentioned velocity deviation (V) is to set more than the rpm (rpm5) the above-mentioned the 5th, the cylinder 10 velocity deviation values when cylinder 10 speed when washing bag 50 is raised and washing bag 50 drop.
That is, wrap 50 when the inside of above-mentioned cylinder 10 off-centre is provided with when washing, cylinder 10 speed when above-mentioned washing bag 50 is raised are with slack-off, and cylinder 10 speed when above-mentioned washing bag 50 drops will accelerate, thereby will detect bigger above-mentioned velocity deviation (V); When washing bag 50 evenly is provided with in the inside of above-mentioned cylinder 10,, thereby will detect less above-mentioned velocity deviation (V) because cylinder 10 speed of above-mentioned washing bag 50 when being raised are close with cylinder 10 speed of above-mentioned washing bag 50 when dropping.
With above-mentioned velocity deviation (V) and reference speed deviation (V
0) compare, thereby determine above-mentioned single load eccentricity detecting step (g and g ' interval) whether enter and wash the bag execution again of untiing.
That is, when detecting velocity deviation (V) less than said reference velocity deviation (V
0) time, evenly launch in the inside of above-mentioned cylinder 10 being judged as washing bag 50, and enter above-mentioned single load eccentricity detecting step (g and g ' interval); When detecting velocity deviation (V) greater than said reference velocity deviation (V
0) time, will be judged as washing bag 50, and carry out above-mentioned washing bag again and separate open procedure in the eccentric setting in the inside of above-mentioned cylinder 10.
Thus, only under the state of off-centre with to a certain degree releasing of above-mentioned washing bag 50, just enter into above-mentioned single load eccentricity detecting step (g and g ' interval), thereby the phase is carried out above-mentioned single load eccentricity detecting step (g and g ' interval) in due course.
Wherein, above-mentioned washing bag is separated open procedure and is carried out repeatedly with set point number, and above-mentioned washing bag is separated open procedure and will be carried out repeatedly to equidirectional, detects number of times (N) and the 1st set point number (N up to velocity deviation
0) identical, when above-mentioned velocity deviation detects number of times (N) and the 1st set point number (N
0) when identical, with conversion direction, up to above-mentioned direction of rotation conversion times (M) and the 2nd set point number (M
0) identical, and carry out above-mentioned washing bag repeatedly and separate open procedure.
Because above-mentioned washing bag is separated and is stated the 1st set point number (N more than the open procedure
0) in above-mentioned washing bag flows rpm (C) interval, only carry out repeatedly to equidirectional, compared with prior art, to when untiing, not change by the washing bag direction of rotation each the execution, thereby will avoid above-mentioned motor 14 to decelerate to not carrying out washing below the rpm that bag unties, separate ETAD expected time of arrival and departure thereby can significantly shorten above-mentioned washing bag.
In addition, in above-mentioned velocity deviation testing process, separate open procedure whenever repeatedly repeatedly the time at above-mentioned washing bag, to quicken at above-mentioned motor 14 is that the 5th point of setting rpm (rpm5) detects respectively, thereby, will judge whether entering of above-mentioned single load eccentricity detecting step (g and g ' interval) carry out above-mentioned washing bag when separating open procedure at every turn.
The eccentricity detecting of the detection method of above-mentioned velocity deviation testing process and single load eccentricity detecting step described later (g and g ' interval) is very similar.In above-mentioned eccentricity detecting, accelerate to the 2nd and set rpm (rpm2), and be close at washing bag 50 under the state of inner peripheral surface of above-mentioned cylinder 10, carry out the constant speed rotation with certain hour, and detect the rpm variation of above-mentioned motor 14.In above-mentioned velocity deviation testing process, will set under the condition of rpm (rpm5) less than the 5th of the 2nd setting rpm (rpm2), only detect the velocity deviation (V) of once above-mentioned cylinder 10.
That is, above-mentioned velocity deviation testing process and eccentricity detecting are to be close under the state of washing bag 50 at the inner peripheral surface of above-mentioned cylinder 10, detected speed fluctuation amount, thus by above-mentioned velocity deviation testing process, can roughly detect the eccentric state of washing bag in advance.Thus, can judge the period that enters into eccentricity detecting accurately, thereby can shorten the entry time of eccentricity detecting, and reduce the eccentricity detecting number of times by above-mentioned velocity deviation testing process.
In addition, untie in the step (f and f ' interval),, and, single load can be divided into long single load 52 and short single load 54 according to the length that the washing bag launches by above-mentioned velocity deviation testing process at above-mentioned single load washing bag.
That is, the single load 52 of above-mentioned length is the single loads that launch more than the radial height with above-mentioned cylinder 10, and the single load 54 of above-mentioned weak point is with the single load with interior expansion of the radial height of above-mentioned cylinder 10.
As shown in Figure 7, for when being close to the inner peripheral surface of above-mentioned cylinder 10 with the state that launches fully, at the radial direction of above-mentioned cylinder 10, launch to the radial height that is higher than above-mentioned cylinder 10, the single load of above-mentioned length is 1/2 a washing bag of being longer than interior all peripheral lengths of above-mentioned cylinder 10; For when being close to the inner peripheral surface of above-mentioned cylinder 10 with the state that launches fully, radial direction at above-mentioned cylinder 10, launch to the radial height that is lower than above-mentioned cylinder 10, the single load of above-mentioned weak point is 1/2 the washing bag that is shorter than interior all peripheral lengths of above-mentioned cylinder 10.
Thus, as shown in Figure 8, when judging single load 52 of above-mentioned length and short single load 54, separate in the process that open procedure carries out repeatedly with set point number, as long as velocity deviation (V) has for 1 time less than reference speed deviation (V at above-mentioned washing bag
0) value the time, will judge that above-mentioned washing bag 50 is long single load 52; If velocity deviation (V) has greater than reference speed deviation (V always
0) value the time, will judge that above-mentioned washing bag 50 is short single load 54.
This is because when washing bag is separated open procedure, the single load 52 of above-mentioned length, may be washed the off-centre of bag 50 and remove, and make velocity deviation (V) less than reference speed deviation (V under the situation that the circumferencial direction lengthening launches at the inner peripheral surface of above-mentioned cylinder 10
0) situation.But, even the single load 54 of above-mentioned weak point under situation about launching fully, also will be in eccentric state always, thereby separate open procedure washing bag repeatedly with set point number, velocity deviation (V) also will can not take place less than reference speed deviation (V
0) situation.
In above-mentioned single load eccentricity detecting step (g and g ' interval), untie in the step (f and f ' interval) at above-mentioned single load washing bag and to detect velocity deviation (V) less than reference speed deviation (V
0), and judge under the situation of washing bag 50 for long single load 52 of throwing in the above-mentioned cylinder 10, to carry out the eccentricity detecting of above-mentioned washing bag 50,, and determine whether entering of main dehydration (h interval) then according to offset (UB) based on above-mentioned eccentricity detecting.
That is, in above-mentioned single load eccentricity detecting step (g and g ' interval), if when above-mentioned washing bag is separated open procedure, detect velocity deviation (V) less than reference speed deviation (V
0) time, above-mentioned motor 14 is quickened to set rpm (rpm4) the 2nd setting rpm (rpm2) (rpm5) for separate the 4th, 5 of open procedure greater than above-mentioned washing bag, and reach the 2nd when setting rpm (rpm2) at the rpm of above-mentioned motor 14, constant speed is maintained the 2nd closes above-mentioned motor 14 after setting rpm (rpm2).At this moment, will be maintained the 2nd rpm variation of setting in rpm (rpm2) interval (rpm ripple) in constant speed, detect eccentric state by above-mentioned motor 14.
When detected offset (UB) in above-mentioned eccentricity detecting process greater than benchmark offset (UB
0) time, in order to remove above-mentioned offset (UB), will carry out above-mentioned single load washing bag again and untie step (f and f ' interval), and then carry out the eccentricity detecting process.
Promptly, though be in the state of expansion at the inner peripheral surface of above-mentioned cylinder 10 as the washing bag 50 of long single load 52, but, if above-mentioned washing bag 50 does not launch fully, and be judged as when being not suitable for entering above-mentioned main dehydration (h interval), to separate open procedure by above-mentioned washing bag and further untie washing bag 50, and further remove eccentric state.
On the contrary, in initial eccentricity detecting detected offset (UB) or carry out above-mentioned washing bag again and separate open procedure after detected offset (UB) be benchmark offset (UB
0) in the time, will enter above-mentioned main dehydration (h interval).
In above-mentioned main dehydration (h interval), above-mentioned motor 14 will drive to set rpm (rpm3) greater than the 3rd of the 2nd setting rpm (rpm2), and will carry out the high speed centrifugation dehydration to the washing bag of throwing in the above-mentioned cylinder 10 50.
Particularly, detect velocity deviation (V) greater than reference speed deviation (V when untiing in the step (f and f ' interval) at above-mentioned single load washing bag
0), and judge in the above-mentioned cylinder 10 under the situation of washing bag 50 for short single load 54 of throwing in, will be without above-mentioned single load eccentricity detecting step (g and g ' interval), and directly carry out above-mentioned main dehydration (h interval).
Thus, can save washing bag that being used in the dewatering of prior art remove the off-centre of short single load 54 and untie or be used to detect the unnecessary operations such as eccentricity detecting of eccentric state, therefore, in above-mentioned main dehydration (h interval), when judging above-mentioned washing bag 50, can significantly shorten dewatering time and corresponding operating for short single load 54.
As mentioned above,, therefore carrying out with eccentric state under the situation of dehydrating operations, also can fully obtain buffering by the spring 4 and the shock absorber 6 of above-mentioned roller washing machine 1 because the washing bag amount of short single load 54 is little.
Particularly, owing to untie in the step (f and f ' interval) at above-mentioned single load washing bag, judging washing bag 50 is long single load 52 or short single load 54, thereby can be, and can strengthen vibration characteristics in the main dehydration (h interval) at single load according to the kind of single load with the method for the best stroke that dewaters.
In addition, in above-mentioned single load detection step (e interval), if above-mentioned umber of pulse (P) is less than reference pulse number (P
0), and when judging above-mentioned washing bag 50 for non-single load, will be by the method identical stroke that dewaters, so will save detailed description thereof at this with dewatering of the prior art.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (7)
1. the dewatering of a roller washing machine, in the present invention, detect the offset of the single load of throwing in the cylinder, and offset for the setting value in the time, above-mentioned cylinder will rotate at a high speed by motor, and single load carried out centrifugal dehydration, it is characterized in that: before above-mentioned eccentricity detecting, above-mentioned motor flows between the rpm interval at the washing bag, quicken repeatedly and slow down and the washing bag of carrying out washing bag is untied, separate certain time point in the open procedure at above-mentioned washing bag, detect velocity deviation repeatedly based on the cylinder of the offset of single load, when separating open procedure at above-mentioned washing bag and carry out not detecting in the process of set point number setting value with interior velocity deviation repeatedly, above-mentioned single load will obtain centrifugal dehydration.
2. the dewatering of roller washing machine according to claim 1 is characterized in that: the wherein said washing bag rpm that flows is that washing wraps in the minimum rpm that flows about the central shaft of above-mentioned cylinder and washing and packs tightly rpm interval between the minimum rpm that the inner peripheral surface that is affixed on above-mentioned cylinder do not drop;
Separate in the open procedure at above-mentioned washing bag, will speed up the minimum rpm that above-mentioned washing bag do not drop after, decelerate to the minimum rpm that above-mentioned washing bag flows.
3. the dewatering of roller washing machine according to claim 2 is characterized in that: wherein said washing bag is separated the time point that accelerates to the minimum rpm that above-mentioned washing bag do not drop in the open procedure, will carry out above-mentioned velocity deviation testing process.
4. the dewatering of roller washing machine according to claim 3, it is characterized in that: wherein said velocity deviation be washings when being raised drum speed and the velocity deviation between the drum speed of washings when dropping, detected velocity deviation is in the reference speed deviation time in above-mentioned velocity deviation testing process, will enter into eccentricity detecting.
5. according to the dewatering of the described roller washing machine of arbitrary claim in the claim 1 to 4, it is characterized in that wherein said washing bag separates open procedure and carry out the 1st set point number repeatedly to identical direction of rotation, and with the 2nd set point number conversion direction;
Above-mentioned velocity deviation testing process will be separated at above-mentioned washing bag and be detected respectively when open procedure is carried out repeatedly.
6. the dewatering of roller washing machine according to claim 5, it is characterized in that: wherein said some at least in the reference speed deviation time in detected velocity deviation in above-mentioned velocity deviation testing process, will judge that above-mentioned single load is the single load of length that is deployed into more than the radial height of above-mentioned cylinder;
When detected velocity deviation in the testing process in above-mentioned velocity deviation is the reference speed deviation when above, will judge that above-mentioned single load is to be deployed into the radial height of above-mentioned cylinder with the single load of interior weak point.
7. the dewatering of roller washing machine according to claim 6 is characterized in that: wherein said when judging that above-mentioned single load is when growing single load, to enter into eccentricity detecting;
When judging above-mentioned single load, enter into dehydration for the single load of weak point.
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| CNA200610016437XA CN101173453A (en) | 2006-10-30 | 2006-10-30 | Dewatering method for drum washing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610016437XA CN101173453A (en) | 2006-10-30 | 2006-10-30 | Dewatering method for drum washing machine |
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| CN101173453A true CN101173453A (en) | 2008-05-07 |
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| CNA200610016437XA Pending CN101173453A (en) | 2006-10-30 | 2006-10-30 | Dewatering method for drum washing machine |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101812790A (en) * | 2009-08-11 | 2010-08-25 | 南京乐金熊猫电器有限公司 | A control method for washing device |
| CN101586301B (en) * | 2008-05-23 | 2011-07-27 | Lg电子株式会社 | Washing machine and method of controlling the same |
| CN101586299B (en) * | 2008-05-23 | 2011-11-02 | Lg电子株式会社 | Washing machine and method for controlling washing machine |
| CN103403244A (en) * | 2011-03-03 | 2013-11-20 | Lg电子株式会社 | Method for controlling washing machine |
| CN107354661A (en) * | 2017-08-08 | 2017-11-17 | 无锡小天鹅股份有限公司 | Device for clothing processing and control method and equipment for the device for clothing processing |
| CN107541897A (en) * | 2016-06-28 | 2018-01-05 | 青岛海尔洗衣机有限公司 | Washing machine and its dehydration controlling method |
| CN110344208A (en) * | 2018-04-04 | 2019-10-18 | 青岛海尔洗衣机有限公司 | A kind of control method and washing machine of washing machine |
| CN113186690A (en) * | 2021-04-29 | 2021-07-30 | 四川虹美智能科技有限公司 | Dewatering control method and device for drum washing machine |
| WO2022227960A1 (en) * | 2021-04-26 | 2022-11-03 | 青岛海尔洗衣机有限公司 | Washing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586301B (en) * | 2008-05-23 | 2011-07-27 | Lg电子株式会社 | Washing machine and method of controlling the same |
| CN101586299B (en) * | 2008-05-23 | 2011-11-02 | Lg电子株式会社 | Washing machine and method for controlling washing machine |
| CN101812790A (en) * | 2009-08-11 | 2010-08-25 | 南京乐金熊猫电器有限公司 | A control method for washing device |
| CN103403244A (en) * | 2011-03-03 | 2013-11-20 | Lg电子株式会社 | Method for controlling washing machine |
| CN107541897A (en) * | 2016-06-28 | 2018-01-05 | 青岛海尔洗衣机有限公司 | Washing machine and its dehydration controlling method |
| CN107541897B (en) * | 2016-06-28 | 2021-08-20 | 青岛海尔洗衣机有限公司 | Washing machine and dehydration control method thereof |
| CN107354661A (en) * | 2017-08-08 | 2017-11-17 | 无锡小天鹅股份有限公司 | Device for clothing processing and control method and equipment for the device for clothing processing |
| CN110344208A (en) * | 2018-04-04 | 2019-10-18 | 青岛海尔洗衣机有限公司 | A kind of control method and washing machine of washing machine |
| CN110344208B (en) * | 2018-04-04 | 2023-09-05 | 青岛海尔洗衣机有限公司 | Control method of washing machine and washing machine |
| WO2022227960A1 (en) * | 2021-04-26 | 2022-11-03 | 青岛海尔洗衣机有限公司 | Washing machine |
| CN113186690A (en) * | 2021-04-29 | 2021-07-30 | 四川虹美智能科技有限公司 | Dewatering control method and device for drum washing machine |
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