EP4127294A1 - Method for operating a washing machine, and washing machine - Google Patents
Method for operating a washing machine, and washing machineInfo
- Publication number
- EP4127294A1 EP4127294A1 EP21715189.3A EP21715189A EP4127294A1 EP 4127294 A1 EP4127294 A1 EP 4127294A1 EP 21715189 A EP21715189 A EP 21715189A EP 4127294 A1 EP4127294 A1 EP 4127294A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- pendulum
- laundry
- washing machine
- predetermined
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005406 washing Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000033001 locomotion Effects 0.000 claims abstract description 9
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 230000010355 oscillation Effects 0.000 claims description 9
- 230000001133 acceleration Effects 0.000 claims description 6
- 230000033764 rhythmic process Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 241000264877 Hippospongia communis Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/36—Driving arrangements for rotating the receptacle at more than one speed
- D06F37/38—Driving arrangements for rotating the receptacle at more than one speed in opposite directions
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/36—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of washing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
- D06F35/005—Methods for washing, rinsing or spin-drying
- D06F35/006—Methods for washing, rinsing or spin-drying for washing or rinsing only
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/32—Driving arrangements for rotating the receptacle at one speed only
- D06F37/34—Driving arrangements for rotating the receptacle at one speed only in opposite directions, e.g. oscillating
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/04—Quantity, e.g. weight or variation of weight
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/44—Current or voltage
- D06F2103/46—Current or voltage of the motor driving the drum
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
- D06F2105/48—Drum speed
Definitions
- the invention relates to a method for operating an automatic washing machine and an automatic washing machine.
- the invention relates to a method for operating a washing machine with a tub for receiving washing liquid, a drum rotatably mounted in the tub for receiving laundry, a motor for driving the drum and a control or regulating device, the method including a step for shifting the laundry in the drum, and a corresponding washing machine.
- washing machine drums have ribs in their interior.
- a rib which is also referred to as a driver, is a part of the drum which, when the drum moves, also sets laundry inside the drum in motion, i.e. takes it with it.
- the rib is usually a protrusion in the drum that protrudes from the drum shell and points in the direction of the drum center and on which the laundry in the drum hangs up to a certain height when the drum is rotated and then falls back down again and in this way is whirled through and rearranged.
- ribs which are arranged at predetermined distances from one another. The ribs are essential so that the laundry is shifted while a washing program is being carried out.
- a common washing rhythm during the execution of a washing program consists of a change from clockwise rotation of the drum, pause, counter-clockwise rotation of the drum, pause, clockwise rotation, pause, etc.
- the ribs are additional components that incur costs. Therefore, a ribless drum would be desirable.
- the problem of the invention is thus to provide a method for operating an automatic washing machine and an automatic washing machine with a rib-less drum, which are inexpensive.
- the advantages that can be achieved with the invention are, besides the cost-effectiveness, that the pendulum washing rhythm realized with the method causes a relatively high washing mechanics and thus enables a relatively fast washing and / or a relatively high washing effect, which may be necessary in the case of relatively heavy soiling. Simultaneously The washing rhythm enables the laundry to be repositioned even with a relatively small load of laundry without driver ribs.
- the invention relates to a method for operating an automatic washing machine with a tub for receiving washing liquid, a ribless drum rotatably mounted in the tub for receiving laundry, a motor for driving the drum and a control or regulating device, the method including a step for shifting of the laundry in the drum, in which the drum is set in a right-left movement with the help of the motor in such a way that a pendulum movement of the laundry is caused with a pendulum frequency, the predetermined pendulum amplitude of which is set in such a way that a laundry fall is realized, in which the laundry falls from a first area of the drum into a second area of the drum.
- a ribless drum is a drum that does not have a rib or driver inside. However, it can have other elevations and / or depressions that do not have the shape of the plate-shaped rib or the driver.
- the drum preferably the drum shell, preferably has depressions and / or elevations other than a rib. It preferably has honeycombs, each of which is designed as an elevation or depression.
- the first area of the drum is an area which lies below the second area of the drum, based on an operational set-up position of the washing machine.
- the pendulum frequency is preferably set at -30% of the pendulum frequency calculated according to (1) stored in the washing machine. This also ensures that the laundry is taken along with sufficient safety and that a relatively intensive laundry fall is caused.
- the oscillation frequency is preferably set in such a way that the speed has a triangular time profile. This ensures that the laundry is safely taken along without slipping.
- the triangular time curve is preferably implemented by alternately accelerating the motor with constant acceleration in sections. Since the curve of the angle of rotation represents the integral of the speed curve, the integration properties (damping of the higher frequency components with -20 dB / decade) mean that it is almost sine-shaped. An exact sine-shaped course is not necessary.
- the triangular time profile of the speed has the advantage that it can be implemented with a relatively low computing power of the control or regulating device.
- the predetermined oscillation amplitude is more than +/- 90 °. This further ensures that the laundry falls.
- the predetermined oscillation amplitude is more preferably in the range of +/- 90 ° to +/- 150 °.
- the predetermined oscillation amplitude is even more preferably in the range of +/- 100 ° to +/- 110 °. This also ensures that the laundry is taken along with sufficient safety and that a relatively intensive laundry fall is caused.
- the pendulum amplitude is increased from zero to the predetermined pendulum amplitude within a predetermined time. This has the advantage that the pendulum amplitude can gradually be increased until it is so great that laundry falls.
- the predetermined time is preferably a first period of time which is up to 0.5 pendulum periods, preferably up to 0.2 pendulum periods. This causes the laundry to slip at the beginning of the process, which results in a short phase with a surface Friction between the drum and the laundry is achieved, which continues to contribute to the washing effect.
- the predetermined time is preferably a second period of time which is 1.0 to 2.0 commuting periods, more preferably 1.5 commuting periods. This also ensures that the majority of the laundry is taken along without slipping within this second period.
- the predetermined time depends on a type of laundry that is determined by setting the washing program. This has the advantage that more delicate laundry can be exposed to less friction compared to less sensitive laundry, while the less sensitive laundry can be exposed to stronger washing mechanics.
- the predetermined oscillation amplitude is maintained over a predetermined period of time. If the pendulum amplitude is maintained after reaching the predetermined pendulum amplitude, there is a constant lifting and falling of the laundry alternately on the right and on the left side, based on the operational set-up position of the washing machine. This creates a relatively intensive washing mechanism.
- the invention also relates to an automatic washing machine with a tub for holding washing liquid, a ribless drum rotatably mounted in the tub for holding laundry, a motor for driving the drum and a control or regulating device which is designed according to one or more of the carry out embodiments described above.
- Embodiments and advantages described for the method apply accordingly to the washing machine and vice versa.
- the washing machine can be a front loader or a top loader.
- the term “washing machine” also includes a combination device such as a washer-dryer.
- the drum is preferably rotatably mounted in the tub with a horizontal axis of rotation.
- the control or regulating device can be designed in one or more parts. In addition to regulating the speed of the motor for driving the drum, it has other regulations or controls that are required to carry out the washing program.
- FIG. 2 shows a time profile of a speed and an angle in a further method according to the invention.
- 1 shows a time profile of a speed and an angle in a method according to the invention.
- the speed curve over time is triangular.
- the triangular shape is achieved by alternately accelerating the motor with constant acceleration in sections.
- the speed is increased in an acceleration phase until it is varied in the range of +/- 150 min -1. Since the curve of the angle, ie the angle of rotation, represents the integral of the speed curve, the integration properties (damping of the higher frequency components -20 dB / decade) make it almost sine-shaped.
- a pendulum amplitude predetermined for generating a fall of laundry is increased from zero to the predetermined pendulum amplitude at the beginning within a predetermined time.
- the predetermined time is a first period of time which is, for example, 1.5 pendulum periods.
- the first period represents the acceleration phase, in which a large part of the laundry is taken along when the drum rotates without slipping.
- the predetermined oscillation amplitude of approx. +/- 100 0 for example, the laundry falls. If the predetermined pendulum amplitude is then maintained, there is a constant lifting and falling of the laundry alternately on the right and on the left side of the drum, based on the operational set-up position of the washing machine.
- FIG. 2 shows a time profile of a speed and an angle in a further method according to the invention.
- the time profiles of the speed and the angle shown in Fig. 2 correspond to the time profiles shown in Fig. 1 with the difference that the predetermined time is a second period of time, which is zero, and the speed of the drum in the range of +/- 100 min -1 is varied, so that the acceleration phase described with reference to FIG. 1 is missing.
- the predetermined time is a second period of time, which is zero
- the speed of the drum in the range of +/- 100 min -1 is varied, so that the acceleration phase described with reference to FIG. 1 is missing.
- the predetermined time is a second period of time, which is zero
- the speed of the drum in the range of +/- 100 min -1 is varied, so that the acceleration phase described with reference to FIG. 1 is missing.
- the predetermined time is a second period of time, which is zero
- the speed of the drum in the range of +/- 100 min -1 is varied, so that
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020108754.3A DE102020108754A1 (en) | 2020-03-30 | 2020-03-30 | Method for operating a washing machine and washing machine |
PCT/EP2021/057269 WO2021197898A1 (en) | 2020-03-30 | 2021-03-22 | Method for operating a washing machine, and washing machine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4127294A1 true EP4127294A1 (en) | 2023-02-08 |
Family
ID=75278002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21715189.3A Pending EP4127294A1 (en) | 2020-03-30 | 2021-03-22 | Method for operating a washing machine, and washing machine |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230160129A1 (en) |
EP (1) | EP4127294A1 (en) |
KR (1) | KR20220151222A (en) |
CN (1) | CN115516155A (en) |
DE (1) | DE102020108754A1 (en) |
WO (1) | WO2021197898A1 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060023067A (en) * | 2004-09-08 | 2006-03-13 | 삼성전자주식회사 | Washing machine |
KR101507791B1 (en) * | 2008-04-29 | 2015-04-03 | 엘지전자 주식회사 | Laundry Machine Having a Washing Course for Shoes |
KR101731330B1 (en) * | 2009-11-02 | 2017-04-28 | 엘지전자 주식회사 | Method for washing and washing machine |
WO2011025311A2 (en) * | 2009-08-27 | 2011-03-03 | Lg Electronics Inc. | Control method of laundry machine |
EP2473661B1 (en) * | 2009-08-31 | 2019-06-26 | LG Electronics Inc. | Control method of washing machine |
WO2012020898A1 (en) * | 2010-08-11 | 2012-02-16 | Lg Electronics Inc. | Control method of a laundry machine |
EP3505668B1 (en) * | 2017-12-28 | 2021-06-09 | LG Electronics Inc. | Method for controlling washing machine |
-
2020
- 2020-03-30 DE DE102020108754.3A patent/DE102020108754A1/en active Pending
-
2021
- 2021-03-22 CN CN202180033456.6A patent/CN115516155A/en active Pending
- 2021-03-22 KR KR1020227037875A patent/KR20220151222A/en unknown
- 2021-03-22 US US17/916,207 patent/US20230160129A1/en active Pending
- 2021-03-22 EP EP21715189.3A patent/EP4127294A1/en active Pending
- 2021-03-22 WO PCT/EP2021/057269 patent/WO2021197898A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE102020108754A1 (en) | 2021-09-30 |
KR20220151222A (en) | 2022-11-14 |
WO2021197898A1 (en) | 2021-10-07 |
US20230160129A1 (en) | 2023-05-25 |
CN115516155A (en) | 2022-12-23 |
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