CN1966814A - Spin-drying control method for washing machine with partial decentration - Google Patents
Spin-drying control method for washing machine with partial decentration Download PDFInfo
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- CN1966814A CN1966814A CN 200510016091 CN200510016091A CN1966814A CN 1966814 A CN1966814 A CN 1966814A CN 200510016091 CN200510016091 CN 200510016091 CN 200510016091 A CN200510016091 A CN 200510016091A CN 1966814 A CN1966814 A CN 1966814A
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Abstract
A partial eccentric washing machine dehydrating method senses the eccentricity in the dehydrating process, compares the tested eccentricity with the allowable one. If the tested quantity is smaller than the allowable one, it senses the partial eccentricity. When it not belongs to partial eccentricity, it will dehydrate the clothes. Otherwise, it is partial eccentricity. Through this method, it can prevent vibration and noise resulted from partial eccentricity.
Description
Technical field
The present invention relates to a kind of washing machine.Particularly relate to a kind ofly when dewatering stroke, consider that clothing is positioned at the partial eccentricity situation of the place ahead upside and the rear downside of cylinder, the laundry machine dehydration control method of the consideration partial eccentricity of dewatering.
Background technology
Usually, washing machine is to utilize the washing agent in the wash bucket and the effect of water, the equipment that the washings in the cylinder is washed.
Fig. 1 is the internal structure of washing machine vertical section schematic diagram of conventional art; Fig. 2 is the Facad structure schematic diagram of the cylinder inside of Fig. 1 when partial eccentricity occurring; Fig. 3 is the side structure schematic diagram of the cylinder inside of Fig. 1 when partial eccentricity occurring.
As shown in Figure 1, traditional washing machine comprises shell 2; Be installed in shell 2 inside, when washing or clean, put washings, when dehydration, put from the wash bucket 10 of the water of foreign matter disengaging; Can be rotatably set in wash bucket 10 inside, be used to put the cylinder 20 of clothing m; In the time of back-up roller 20, the motor 30 of rotary drum 20.
In the front of shell 2, be formed with mouthful 2a that picks and places that picks and places clothing m, and be equipped with can open and close pick and place mouthful 2a the door 4.
On wash bucket 10, connecting the water supply installation 12 that the washings of outside supply is fed to wash bucket 10 inside, and the drainage arrangement 14 of the washings of wash bucket 10 inside row to the outside.
Washing machine also comprises according to the laundry amounts of user's operation or perception and offset, the control part that water supply installation 12, drainage arrangement 14 and motor 30 are controlled.
Below, the operation principle of conventional art is described.
At first, behind cylinder 20 inner input clothing m, close door 4, start washing machine.At this moment control part carries out perception to the laundry amounts of throwing in, and according to the laundry amounts of perception, sets water level, wash time, detergent amount, cleaning and washings intensity of flow etc.
Control part is controlled water supply installation 12 by the time of setting according to the laundry amounts of perception, supplies water to washing machine inside by certain water level.The washings of supply flow into wash bucket 10 inside, are housed in the wash bucket 10.Afterwards, control part is pressed the time of setting, the rotating speed of setting, drive motors 30, and rotary drum 20, the clothing m that is housed in cylinder 20 inside is washed under the effect of washings.After finishing washing stroke, the pollution washings in the wash bucket 10 are arranged to the outside by drainage arrangement 14.
Washing machine carries out several and cleans stroke for cleaning clothes.At this moment, identical with washing stroke, according to the laundry amounts of perception water supply installation 12 and motor 30 are controlled.In addition, the washings after the cleaning are arranged to the washing machine outside by drainage arrangement 14.
Carry out after several cleans stroke, the washing machine stroke that dewaters utilizes centrifugal principle to dewater by clothing m.
The dehydration stroke carries out the laundry amounts perception stage of perception by in order to determine best dewatering time or dewatering speed to laundry amounts; In order to determine to enter the still loose clothing stage in water smoking, the offset perception stage of offset being carried out perception; High speed rotating motor 30, the water smoking of carrying out this dehydration.
In the laundry amounts perception stage, starter motor 30, after making it to keep constant speed within a certain period of time, disable motor 30, to start to from motor 30 keep constant speed and stop till pulsewidth modulation (PWM) duty (duty) value and the inertia force anglec of rotation of motor 30 after closing, measure the perception laundry amounts.
Afterwards, by a direction rotary drum 20, the perception offset.
When the offset of perception less than the benchmark offset, then washing machine is judged as clothing does not have off-centre, by same direction of rotation high speed rotating cylinder, dewaters.
On the contrary, the offset of perception then is judged as clothing off-centre greater than the benchmark offset, by left and right mixing drum, carries out the loose operation of clothing; Carry out the loose operation of offset perception stage and clothing afterwards repeatedly, reach below the benchmark offset up to offset.When the offset of perception reaches the benchmark offset when following, dewater.
Afterwards, washing machine dewaters according to the dewatering time of setting in the laundry amounts perception stage, dewatering speed, with the high speed rotating cylinder, allows clothing obtain centrifugal dehydration.Drainage arrangement 14 is arranged water to the washing machine outside.Washing machine stops cylinder 20 after dewatering time finishes, finish the dehydration stroke.
But, the dehydration controlling method of conventional art, if in the process of perception offset clothing, as Fig. 2, shown in Figure 3, symmetrical branch in the place ahead upside and the rear downside of cylinder 20 inside, then can form partial eccentricity, and the offset of perception at this moment satisfies the following condition of benchmark offset, being judged as does not mistakenly have off-centre, after in the high speed dewatering process of carrying out, because partial eccentricity, washing machine produces very big vibration and noise, causes washing machine internal structure problem of unstable.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of by the perception partial eccentricity, when being not partial eccentricity, enter dehydration, prevents the laundry machine dehydration control method of the consideration partial eccentricity of the vibration that caused by partial eccentricity and noise.
The technical solution adopted in the present invention is: a kind of laundry machine dehydration control method of considering partial eccentricity comprises: when washing machine dewaters stroke, offset is carried out the offset perception stage of perception; The offset comparison phase that the offset of the offset of offset perception stage perception and permission is compared; In the offset comparison phase, offset is during less than the allowable offset amount, the partial eccentricity perception stage of partial eccentricity being carried out perception; In the partial eccentricity perception stage, be judged as when not being the partial eccentricity state, enter dewatering operation, the water smoking that clothing is dewatered.
Described partial eccentricity perception stage comprises: after carrying out the offset comparison phase, reduce drum speed, after after a while, being higher than the speed rotary drum of eccentric perception stage, the offset that the offset when rotating at a high speed carries out perception is perception again; The offset of the perception again comparison procedure that the offset offset that the offset of perception and partial eccentricity allow in the perception is again compared; If the offset of perception is greater than the offset that partial eccentricity allows again, then be judged as the deterministic process of partial eccentricity.
If in the partial eccentricity perception stage, be judged as partial eccentricity, then for remove the partial eccentricity state, the loose clothing stage of the clothing that loosens.
Loosen clothing after the stage, up to be judged as be not in partial eccentricity till, carry out partial eccentricity perception stage and loose clothing stage repeatedly.
The laundry machine dehydration control method of consideration partial eccentricity of the present invention, even be judged as after the perception off-centre and do not have off-centre, can directly not enter dehydration yet, and individually again perception whether local off-centre is arranged, under the state that is not partial eccentricity, enter dewatering operation, therefore can prevent the vibration and the noise that bring by partial eccentricity.
Description of drawings
Fig. 1 is the internal structure of washing machine vertical section schematic diagram of conventional art;
Fig. 2 is the Facad structure schematic diagram of the cylinder inside of Fig. 1 when partial eccentricity occurring;
Fig. 3 is the side structure schematic diagram of the cylinder inside of Fig. 1 when partial eccentricity occurring;
Fig. 4 is the flow chart of the laundry machine dehydration control method of consideration partial eccentricity of the present invention;
When Fig. 5 is a laundry machine dehydration of the present invention, the motor speed curve map relevant with the time.
Wherein:
10: wash bucket 20: cylinder
30: motor A section: eccentric perception section
B: partial eccentricity perception section C: loose foreign matter stage
D: dehydration section
The specific embodiment
Below, with reference to accompanying drawing, embodiments of the invention are elaborated.
Fig. 4 is the flow chart of the laundry machine dehydration control method of consideration partial eccentricity of the present invention; When Fig. 5 is a laundry machine dehydration of the present invention, the motor speed curve map relevant with the time.
In the following explanation,, therefore quote same-sign owing to adopt the washing machine structure of the laundry machine dehydration control method of considering partial eccentricity identical with conventional art.
As Fig. 4, shown in Figure 5, the laundry machine dehydration control method of the consideration partial eccentricity of present embodiment, by rotary drum 20, perception off-centre (UB) amount (S1, A section).
As shown in Figure 5, in the process of perception off-centre (UB) amount, allow the motor 30 of rotary drum 20 quicken, make the rotating speed (rpm) of motor 30 reach the 1st setting rotating speed (rpm1), when reaching the 1st setting rotating speed (rpm1), rotating speed variation with this moment is an offset, offset is carried out perception, or by additive method offset is carried out perception.
As shown in Figure 4, the off-centre of perception (UB) amount and allowable offset (UB) amount are compared (S2).
Here, allowable offset (UB) amount is in order to judge whether cylinder 20 by the direction of original rotation, rotation (that is, this dehydration) at a high speed, the benchmark offset of setting in advance.
Comparative result is if the off-centre of perception (UB) amount then is judged as clothing and is in eccentric state in cylinder 20 inside, in order to eliminate eccentric state, the operation of the clothing that loosens (S3) greater than allowable offset (UB) amount.
Here, in the process of loose clothing, for cylinder 20 by clockwise and counterclockwise, alternately rotate, (rpm2, rpm2＜rpm1) carry out positive and negative driving with the 2nd setting rotating speed to allow motor 20.
After carrying out loose clothing operation, washing machine perception off-centre again (UB) amount, if do not reach below off-centre (UB) amount of permission, the perception of clothing operation and the off-centre of then loosening repeatedly (UB) amount, with off-centre (UB) amount that allows between comparison, below the off-centre (UB) that eccentric (UB) amount reaches permission is measured.
On the contrary, if comparative result, eccentric (UB) amount reaches below allowable offset (UB) amount, then is judged as clothing and is not in eccentric state in cylinder 20 inside, carries out the perception to partial eccentricity.
In the partial eccentricity perception operation, reduce the speed of cylinder 20, through behind the certain hour, motor 30 is controlled, made it to be higher than speed, the rotary drum 20 in the eccentric operation of perception, when cylinder 20 rotates at a high speed, to eccentric (UB) amount, carry out perception (S4, B section) once more
Above-mentioned, certain hour is for the degree of accuracy that improves partial eccentricity perception operation, time of waiting for, is the setting-up time of setting in advance.
Washing machine quickens by motor 30, make the arrival of motor 30 speed be higher than the 3rd of the 1st setting rotating speed (rpm1) and set rotating speed (rpm3, rpm3＞rpm1), when motor 30 speed arrive the 3rd setting rotating speed (rpm3), the rotating speed variation of this moment is measured as eccentric (UB) amount, or with other method perception offset.
Afterwards, washing machine, off-centre (UB) amount that the off-centre of perception once more (UB) amount and partial eccentricity are allowed compares; If the off-centre of perception (UB) amount then is judged as partial eccentricity greater than off-centre (UB) amount that partial eccentricity allows once more; If the off-centre of perception (UB) amount is below off-centre (UB) amount of partial eccentricity permission once more, then be judged as the partial eccentricity state (S5) that is not in.
Here, partial eccentricity allowable offset (UB) amount be for the partial eccentricity of judging cylinder 20 whether, the benchmark offset of setting in advance; Can be identical with off-centre (UB) amount that allows, also can be greater than off-centre (UB) amount that allows.
If the clothing of cylinder 20 inside is in the partial eccentricity state, then reduce the speed of cylinder 20, after after a while, allow the speed of cylinder 20 when being higher than eccentric perception operation be rotated, once more offset is carried out perception.Here, the off-centre of perception (UB) amount can be greater than the offset of measuring in the eccentric perception operation (S1) again, if the off-centre of perception (UB) amount is greater than the offset that allows again, then illustrate in the cylinder 20 and have partial eccentricity, if that perception off-centre again (UB) amount is the allowable offset amount is following, then illustrate that there is not partial eccentricity in cylinder inside.
If washing machine is judged as partial eccentricity,, implement loose clothing operation (S6, C section) then in order to remove the partial eccentricity state in the cylinder.
Washing machine is by controlling motor 30, after loose clothing operation, reduce cylinder 20 speed, afterwards through after a while the time, allow cylinder 20 rotation at a high speed, off-centre (UB) amount when once more cylinder 20 being rotated is at a high speed carried out perception, if the off-centre of perception (UB) amount is measured greater than the off-centre (UB) that partial eccentricity allows again, then loosen repeatedly clothing operation, off-centre (UB) measure perception again, and partial eccentricity allowable offset (UB) amount between comparison, reach below partial eccentricity allowable offset (UB) amount up to off-centre (UB) amount of perception again.
Washing machine if be judged as the partial eccentricity state that is not in, then reduces the speed of cylinder 20, is going into dewatering operation (S7, D section) through laggard after a while.
Washing machine adds speed motor 30 by multistage ground, make the speed of motor 30 arrive the 4th setting rotating speed (rpm4 that is higher than the 3rd setting rotating speed (rpm3), rpm4＞rpm3), when the rotating speed of motor 30 arrives the 4th when setting rotating speed (rpm4), in dewatering time, allow motor 30 set rotating speed (rpm4) to drive (S7) with the 4th.
Here, dewatering time and the 4th is set rotating speed, can set by the laundry amounts perception operation before the initial eccentric perception operation, and also can have nothing to do with laundry amounts is set at certain hour.
Claims (4)
1. a laundry machine dehydration control method of considering partial eccentricity is characterized in that: comprising: when washing machine dewaters stroke, offset is carried out the offset perception stage of perception; The offset comparison phase that the offset of the offset of offset perception stage perception and permission is compared; In the offset comparison phase, offset is during less than the allowable offset amount, the partial eccentricity perception stage of partial eccentricity being carried out perception; In the partial eccentricity perception stage, be judged as when not being the partial eccentricity state, enter dewatering operation, the water smoking that clothing is dewatered.
2. the laundry machine dehydration control method of consideration partial eccentricity according to claim 1, it is characterized in that: described partial eccentricity perception stage comprises: after carrying out the offset comparison phase, reduce drum speed, after after a while, being higher than the speed rotary drum of eccentric perception stage, the offset that the offset when rotating at a high speed carries out perception is perception again; The offset of the perception again comparison procedure that the offset offset that the offset of perception and partial eccentricity allow in the perception is again compared; If the offset of perception is greater than the offset that partial eccentricity allows again, then be judged as the deterministic process of partial eccentricity.
3. the laundry machine dehydration control method of consideration partial eccentricity according to claim 1 is characterized in that: if in the partial eccentricity perception stage, be judged as partial eccentricity, then for remove the partial eccentricity state, the loose clothing stage of the clothing that loosens.
4. the laundry machine dehydration control method of consideration partial eccentricity according to claim 3 is characterized in that: loosen clothing after the stage, up to be judged as be not in partial eccentricity till, carry out partial eccentricity perception stage and loose clothing stage repeatedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510016091 CN1966814A (en) | 2005-11-14 | 2005-11-14 | Spin-drying control method for washing machine with partial decentration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510016091 CN1966814A (en) | 2005-11-14 | 2005-11-14 | Spin-drying control method for washing machine with partial decentration |
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| CN1966814A true CN1966814A (en) | 2007-05-23 |
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| CN 200510016091 Pending CN1966814A (en) | 2005-11-14 | 2005-11-14 | Spin-drying control method for washing machine with partial decentration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747594A (en) * | 2011-04-21 | 2012-10-24 | 松下电器产业株式会社 | Drying device |
| WO2022062728A1 (en) * | 2020-09-25 | 2022-03-31 | 青岛海尔滚筒洗衣机有限公司 | Washing machine control method and washing machine |
-
2005
- 2005-11-14 CN CN 200510016091 patent/CN1966814A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747594A (en) * | 2011-04-21 | 2012-10-24 | 松下电器产业株式会社 | Drying device |
| CN102747594B (en) * | 2011-04-21 | 2015-01-21 | 松下电器产业株式会社 | Drying device |
| WO2022062728A1 (en) * | 2020-09-25 | 2022-03-31 | 青岛海尔滚筒洗衣机有限公司 | Washing machine control method and washing machine |
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