EP2110474B1 - Procédé de commande de machine à laver - Google Patents

Procédé de commande de machine à laver Download PDF

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Publication number
EP2110474B1
EP2110474B1 EP09151009.9A EP09151009A EP2110474B1 EP 2110474 B1 EP2110474 B1 EP 2110474B1 EP 09151009 A EP09151009 A EP 09151009A EP 2110474 B1 EP2110474 B1 EP 2110474B1
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EP
European Patent Office
Prior art keywords
drum
water
speed
laundry
tub
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.)
Expired - Fee Related
Application number
EP09151009.9A
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German (de)
English (en)
Other versions
EP2110474A3 (fr
EP2110474A2 (fr
Inventor
Bon Kwon Koo
Hyun Seok Seo
Jae Hyuk Jang
Bo Sung Seo
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LG Electronics Inc
Original Assignee
LG Electronics Inc
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Filing date
Publication date
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Publication of EP2110474A2 publication Critical patent/EP2110474A2/fr
Publication of EP2110474A3 publication Critical patent/EP2110474A3/fr
Application granted granted Critical
Publication of EP2110474B1 publication Critical patent/EP2110474B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/007—Methods for washing, rinsing or spin-drying for spin-drying only

Definitions

  • the present invention relates to a controlling method of a washing machine. More particularly, the present invention relates to a controlling method of a washing machine to reduce an overall washing time with an improved rinsing efficiency, known for instance, from EP-A-0 778 367 .
  • Washing machines are home electric appliances that remove dirt from washing objects including clothes, cloth items, beddings and the like (hereinafter, laundry) through a washing, rinsing and spinning cycle. Such washing machines may be categorized, based on how to load laundry, into top loading types and front loading types.
  • the top loading type washing machines may be categorized into drum types and pulsator types. In a drum type, a drum is rotated during the washing and rinsing cycle. In a pulsator type, a pulsator is provided in a tub and the pulsator is rotated.
  • the front loading type and the top loading type drum washing machine include a cabinet, a tub and a drum.
  • the cabinet defines an exterior appearance of the washing machine.
  • the tub is provided in the cabinet and it holds wash liquid.
  • the drum is rotatable and it is provided in the tub. Laundry is held in the drum. As the drum or pulsator is rotated horizontally or vertically, the washing, rinsing and spinning cycle may be performed.
  • European Patent Application EP-A-0778367 relates to a clothes washing machine, in particular of the household type, provided with means to recirculate the liquor collecting in the bottom portion tub, which is adapted to make it possible for considerable savings to be obtained in the usage of fresh water in the rinsing phases.
  • the present invention is directed to a controlling method of a washing machine.
  • a controlling method is provided to reduce a time of a rinsing cycle.
  • a controlling method of a washing machine is provided to improve rinsing efficiency as well as to reduce the time of the rinsing cycle.
  • the first speed may be more than 600 rpm to dehydrate, i.e., drain water from, the laundry.
  • the rotation speed of the drum is reduced. Especially, in the water draining operation, the rotation speed of the drum is reduced to a predetermined speed that is higher than a minimum drum speed at which the laundry is closely in contact with the inner circumferential surface of the drum.
  • the second speed is higher than a minimum drum speed at which the laundry is closely in contact with the inner circumferential surface of the drum. It is preferable that in the water supplying operation, water is supplied to a predetermined depth lower than a distance between the tub and the drum.
  • the circulated water In the penetration rinsing operation, water held in the tub is circulated during the rotation of the drum.
  • the circulated water may be supplied in at least one of a horizontal direction and a vertical direction along an inside of the drum.
  • the third speed may be lower than the first speed and higher than the second speed.
  • the drum in the penetration rinsing operation, the drum may be rotated at the third speed such that the circulated water is penetrated through the laundry that is closely in contact with the inner circumferential surface of the drum to perform rinsing.
  • the controlling method may further include at least one tumbling rinsing operation after the spinning operation the water draining operation, the water supplying operation, and the penetration rinsing operation are performed repeatedly a plurality of times.
  • FIG. 1 is a perspective view illustrating a washing machine having a controlling method of an exemplary embodiment applied thereto;
  • FIG. 2 is a flow chart of the controlling method
  • FIG. 3 is a graph illustrating a rotation speed of a drum of a washing machine according to an exemplary embodiment
  • FIG. 4 is a graph illustrating a rotation speed of a drum of a washing machine according to another embodiment.
  • FIG. 5 is a perspective view illustrating a nozzle to supply wash water circulated in FIG. 1 .
  • washing machine having a controlling method according to an exemplary embodiment applied thereto will be explained first and the controlling method will be explained next.
  • FIG. 1 is a perspective view illustrating a washing machine to which a controlling method according to an exemplary embodiment is applied.
  • FIG. 1 shows a front loading type washing machine.
  • the controlling method according to the embodiment can be applied to a top loading type drum washing machine as well as the front loading type drum washing machine. The embodiment will be explained with reference to the front loading type drum washing machine.
  • the washing machine includes a cabinet 10, a tub (not shown) and a drum 20.
  • the cabinet 10 defines an exterior appearance of the washing machine.
  • the tub (not shown) is provided in the cabinet 10 and the drum 20 is rotatably provided in the tub.
  • Wash water is held in the tub and laundry may be loaded through a door 12 coupled to a front of the cabinet 10.
  • the drum 20 may be rotated by driving means (not shown) including a motor. As the drum 20 is rotated, a washing, rinsing and spinning cycle may be performed.
  • An operational part 14 may be provided on a front surface of the cabinet 10 to control an operation of the washing machine and to display a state of the washing machine. Because of the operational part 14, a user can control the operation of the washing machine and recognize a state of the washing machine.
  • the washing machine may be configured to provide a washing course including a washing and rinsing and spinning cycle.
  • a washing machine having a drying function may be further configured to provide a drying course.
  • water is primarily supplied to the drum 20 and the drum 20 is rotated in a clockwise and counter-clockwise direction to perform washing.
  • the rinsing cycle the laundry is dehydrated and the drum 20 is rotated to rinse the laundry.
  • the spinning cycle the drum 20 is rotated at a high speed and the laundry is spun to dehydrate the laundry.
  • the drum 20 is re-rotated after the water supply, laundry may not be spread uniformly in the drum 20 and thus a process of spreading the laundry should additionally be performed.
  • the drum 20 is repeatedly rotated in a clockwise direction and counter-clockwise direction at a predetermined speed to uniformly spread the laundry in the drum 20. After that, the drum 20 is re-rotated to perform a rinsing cycle.
  • a lot of time is required for a rinsing cycle, because the process of spreading laundry should be performed every time in the water supply operation of the rinsing cycle. This can be quite inconvenient to a user.
  • the controlling method of a washing machine according to the embodiment tries to solve that and it is developed to improve rinsing efficiency.
  • the controlling method of an exemplary embodiment will be explained with reference to the drawings.
  • FIG. 2 is a flow chart of the controlling method according to an exemplary embodiment and FIG. 3 is a graph illustrating a rotation speed of the drum 20 in the controlling method.
  • the controlling method of the embodiment relates to a rinsing cycle that may be included in a washing course of a washing machine or a rinsing cycle that may be performed independently from other cycles.
  • the controlling method includes spinning (S210), water draining (S230), water supplying (S250) and rinsing (S270).
  • spinning step (S210) the laundry is spun to dehydrate the laundry.
  • water draining step (S230) water of the drum 20 is drained.
  • water supplying step (S250) water is supplied to the tub, and the drum 20 is rotated so that the laundry is not spaced apart from an inner circumferential surface of the drum 20, in other words, for the laundry to be closely in contact with an inner circumferential surface of the drum 20.
  • the penetration rinsing step (S270) the laundry is rinsed. That is, in the controlling method of the embodiment, the drum 20 is rotated in a case where water is supplied to the tub.
  • the drum 20 is rotated at a predetermined speed higher than a minimum drum speed at which the laundry is not spaced apart from the inner circumferential surface of the drum 20. As a result, a process of spreading the laundry uniformly may not be needed after the water supply operation.
  • the drum 20 is rotated at a first speed to dehydrate the laundry (S210).
  • the rinsing cycle is performed after the washing cycle and it is preferable that the laundry is dehydrated prior to the rinsing cycle.
  • the drum 20 is rotated at the first speed to dehydrate the laundry.
  • the first speed may be adjustable according to a capacity of the washing machine and an amount of the laundry.
  • the first speed may be approximately 600 rpm.
  • the drum 20 is rotated at the first speed, for example, more than 600 rpm to dehydrate the laundry.
  • the rotation speed of the drum 20 is increased until the first speed is reached.
  • the rotation speed may be reduced immediately and it is preferable that the rotation speed of the drum 20 is maintained at the first speed during a predetermined time period, for example, 2 to 5 seconds. Maintaining the rotation speed of the drum 20 at the first speed makes it possible to dehydrate the laundry easily.
  • water in the tub 10 may be drained (S230).
  • the removed moisture of the laundry in the spinning step is stored in the tub and thus it is necessary to drain the water held in the tub.
  • the water of the tub is drained and it is preferable that the water in the tub is drained as the rotation speed of the drum 20 is reduced. If the drum 20 is rotated at a relatively high speed, the water of the tub may not be drained because of the high speed rotation of the drum 20. As a result, if the water is drained as the rotation speed of the drum 20 is reduced, it is possible to easily drain the water in the tub.
  • the rotation speed of the drum 20 is reduced in the water draining step, it is preferable that the laundry is closely in contact with the inner circumferential surface of the drum 20. That is, if the laundry is spaced apart and dropped from the inner circumferential surface of the drum 20, a process of spreading the laundry in the drum 20 uniformly should be performed after the water supplying step which will be described later and an overall time of the rinsing cycle is increased accordingly.
  • the rotation speed of the drum 20 is reduced until a predetermined speed higher than the minimum drum speed at which the laundry is closely in contact with the inner circumferential surface of the drum 20.
  • This minimum drum speed may be adjustable according to a capacity of a washing machine, a capacity of a drum and an amount of loaded laundry. In this embodiment, it is not limited to a specific number, but the minimum drum speed of this embodiment may be, for example, approximately 100 to 110 rpm.
  • the rotation speed of the drum 20 is reduced until a predetermined speed higher than the minimum drum speed, for example, 100 ⁇ 110 rpm, during the water draining operation of the tub.
  • water is supplied to the tub after the water draining step. Specifically, the water is supplied to the tub while rotating the drum 20 at a second speed so that the laundry is not spaced apart from the inner circumferential surface of the drum 20 (S250).
  • the drum 20 is not stopped, but instead is rotated at the second speed during the water supplying operation. It is preferable that the drum 20 is rotated at a predetermined speed higher than the minimum drum speed at which the laundry is closely in contact with the inner circumferential surface of the drum 20, in other words, the laundry is not spaced apart from the inner circumferential surface of the drum 20.
  • the water is supplied as the drum 20 is rotated at a predetermined speed higher than the minimum drum speed at which the laundry is not spaced apart from the inner circumferential surface of the drum 20 after the water supplying step.
  • the minimum drum speed may be, for example, 100 ⁇ 110 rpm, which is a relatively low speed, but is enough to perform the water supplying step smoothly.
  • the drum 20 is repeatedly rotated and the laundry is closely in contact with the inner circumferential surface of the drum 20 by centrifugal force.
  • the rinsing process may start immediately without performing an additional process of spreading the laundry uniformly in the drum 20 after the water supplying step.
  • the water in case of supplying water, the water may be supplied to a level lower than a distance between the tub and the drum 20. That is, if the water is supplied to the tub, a level of the water held in the tub may not be increased over the drum 20 and it is preferable that the level of the water held in the tub may not reach the drum 20.
  • the drum 20 is rotated during the water supplying step. If the level of the water is over the drum 20, the rotation of the drum 20 may not be performed smoothly because of the friction between the drum 20 and the water.
  • the controlling method according to the embodiment includes the penetration rinsing step, the drum 20 is rotated at a relatively high speed. As a result, it is preferable that the water is supplied to the level high enough not to reach the drum 20 in order to avoid the friction between the drum 20 rotating at the high speed.
  • the drum 20 is rotated at the second speed like in the water supplying step to perform rinsing (S270).
  • the rinsing (S270) is performed by rotating the drum 20 at the same rotation speed as the speed of the water supplying step, namely, the second speed.
  • the second rotation speed of the water supplying step is higher than the minimum drum speed at which the laundry is not spaced apart from the inner circumferential surface of the drum 20.
  • the water supplying step is performed while rotating the drum 20 at the second rotation speed. After the water supplying step, the rinsing step starts.
  • 'penetration rinsing' may be performed with rotating the drum at the second speed.
  • the term 'penetration rinsing' means that rinsing is performed while rotating the drum 20 at a speed at which the laundry is in close contact with the inner circumferential surface of the drum 20, different from the conventional rotation speed of the rinsing. In this case, the water of the laundry is penetrated through the laundry by centrifugal force and it is discharged out of the drum 20 to perform rinsing.
  • This penetration rinsing step is performed by rotating the drum 20, with the water held in a lower portion of the tub being circulated to an upper portion of the tub. If the water level may not reach the drum 20 during the water supplying as mentioned above, an amount of the water may be insufficient during the penetration rinsing step. As a result, the water held in the lower portion of the tub is circulated to the upper portion and the water is re-supplied to the drum 20 in the penetration rinsing step. As a result, the rinsing may be performed more smoothly.
  • the washing machine having the controlling method applied thereto may include a circulation unit configured to circulate wash water.
  • the circulation unit may include a circulation line and a circulation pump.
  • the lower portion of the tub is connected with the upper portion of the tub by the circulation line.
  • the circulation pump is configured to circulate the wash water to the upper portion of the tub along the circulation line.
  • a nozzle may be provided at an end of the circulation line connected with the upper portion of the tub to spray the water.
  • the nozzle to supply the circulated wash water may be provided in the upper portion of the tub, preferably, in an upper front portion of the tub.
  • the nozzle is provided at the upper front portion of the tub and the wash water might be supplied mainly to a front portion of the drum 20.
  • the wash water sprayed via the nozzle at a predetermined water pressure may be supplied to the front portion of the drum 20 in a horizontal direction. This might cause a problem that the wash water is supplied only to some of the laundry put in the front portion of the drum 20 and not to the other laundry put in a rear portion of the drum 20.
  • the wash water is supplied in at least one of a horizontal direction and a vertical direction along the inside of the drum 20 when the wash water is circulated in the rinsing step.
  • FIG. 5 is a perspective view illustrating a circulation nozzle configured to supply the wash water along a vertical direction of the drum inside of the washing machine.
  • the circulation nozzle 100 may be formed to spray the wash water to a rear portion as well as a front portion of the drum 20 along a vertical direction.
  • the circulation nozzle 100 may be formed to spray the wash water along plural directions of the drum interior so that the wash water may be uniformly supplied to the laundry in the drum 20.
  • the circulation nozzle 100 may include plural spray holes 110 directed toward the drum interior.
  • Each of the spray holes 110 may be formed to spray the wash water to a different drop position along a vertical direction of the drum 20. That is, the spray holes 110 may be configured to spray the wash water to different positions spaced apart a predetermined distance from the front portion to the rear portion of the drum 20, respectively.
  • the wash water is uniformly supplied to the laundry inside the drum 20 regardless of the rotation of the drum 20.
  • the circulation nozzle 100 may be installed at a front portion of the drum 20 where an opening of the drum 20 is formed.
  • a spraying direction or spraying speed of the wash water sprayed through each of the spray holes 110 may be different from each other so that the wash water may be sprayed to different positions from the front portion to the rear portion of the drum 20 via the spray holes 110, respectively.
  • each of the spray holes 100 formed at the circulation nozzle 100 includes different cross sections or different paths, respectively.
  • a cross section of each spray hole 110 of the circulation nozzle 100 is different from each other to make the pressure of the wash water sprayed via each of the spray holes 110 different from each other.
  • the cross section of the spray hole 110 is smaller, the pressure of the wash water is higher and as the cross section is larger, the pressure of the wash water is lower.
  • the wash water sprayed via the spray hole 110 having a larger cross section at a lower pressure is dropped immediately, whereas the wash water sprayed via the spray hole 110 having a smaller cross section at a higher pressure is sprayed further in a spraying direction.
  • the spray hole 110 having the larger cross section may be formed to supply the wash water to the front portion of the drum 20 and the spray hole 110 having the smaller cross section may be formed to supply the wash water to the rear portion of the drum 20.
  • the spray holes 110 formed along direction 'a' may have a relatively smaller cross sections
  • the spray holes 110 formed along direction 'b' may have a relatively larger cross sections.
  • the wash water may be sprayed at a relatively higher pressure via the spray holes 110 formed along direction 'a' and the wash water may be sprayed at a relatively lower pressure via the spray holes 110 formed along direction 'b'.
  • the spray holes 110 of the circulation nozzle 100 may be connected with paths 120 formed differently from each other, respectively. It may be possible to differentiate a speed of the wash water sprayed via each of the spray holes 110 of the circulation nozzle 100.
  • the circulation nozzle 100 may include plural paths 120 and the wash water drawn from the circulation unit 40 passes through the paths 120.
  • Each of the paths 120 may be formed corresponding to each of the plural spray holes 110 such that the wash water having passed through each of the paths 120 may be sprayed with a different speed.
  • the wash water having passed through the path 120 formed in a vertical direction is dropped in the front portion of the drum 20, and the wash water having passed through the path 120 extended in a horizontal direction toward the drum interior is sprayed to the rear portion of the drum 20 because it has a speed element toward the drum interior.
  • the wash water may be supplied to the rear portion in the drum 20 along a horizontal direction via the spray holes 110 connected with the paths 120 extended in a horizontal direction toward the drum interior. It is possible to adjustably drop the wash water at different spots in the drum 20 according to the nozzle speed of the wash water.
  • the paths 120 connected with the spray holes 110 formed along direction 'a' may be extended horizontally toward the drum inside.
  • the paths 120 connected with the spray holes 110 formed along direction 'b' may be extended relatively short toward the drum interior.
  • the spray hole 110 formed along the direction 'a' with a relatively smaller cross section is connected with the path 120 extended horizontally toward the drum interior and the spray hole 110 formed along the direction 'b' with a relatively larger cross section is connected with the path 120 formed in a vertical direction.
  • the wash water sprayed via the spray hole 110 along the direction 'a' is sprayed along a drum inside direction with a horizontal speed element at a high pressure, such that it may be sprayed to the rear portion of the drum 20 along a vertical direction.
  • the wash water via the spray hole 110 formed in the direction 'b' has a vertical speed element at a low pressure, such that it is dropped near the front portion of the drum 20 and is not sprayed further to the rear portion.
  • the water may be uniformly sprayed from the front portion to the rear portion of the drum 20 along a vertical direction of the drum 20.
  • the rinsing in case the rinsing is performed while rotating the drum 20 after the water supplying step, the rinsing may be performed in a similar way of the conventional rinsing. However, it is preferable that penetration rinsing may be performed.
  • Penetration rinsing is performed while rotating the drum 20 at a relatively high speed at which the laundry is closely in contact with the inner circumferential surface of the drum 20 during the rotation of the drum 20.
  • the wash water contained in the laundry is penetrated through the laundry and discharged outside the drum 20 by centrifugal force during the rinsing.
  • the drum 20 is rotated at a relatively high speed in this penetration rinsing operation, compared with the rotation speed in a conventional rinsing operation.
  • the wash water is supplied enough to maintain the water level lower than the distance between the tub and the drum 20.
  • the wash water is circulated to the upper portion of the tub and of the drum 20 by the circulation unit as mentioned above, and it is repeatedly supplied to the drum 20.
  • This wash water is penetrated through the laundry by the re-rotation of the drum 20 at a high speed.
  • the wash water is discharged outside the drum 20 and it is held in the lower portion of the tub along an inner surface of the tub.
  • the wash water held in the tub is re-circulated to the upper portion of the tub and the upper portion of the drum 20 by the circulation unit to be supplied to the drum interior.
  • the wash water may be supplied to the rear portion of the drum 20 along a vertical direction of the drum 20 by the circulation nozzle 100, the wash water may be supplied to the laundry uniformly, and the drum 20 is rotated to perform the penetration operation, which makes it possible to enhance rinsing efficiency.
  • the second speed may be selectable appropriately to enhance water supplying and rinsing efficiency, for example, between approximately 100 to 450 rpm which is higher than the minimum drum speed.
  • the spinning (S210), water draining (S230), water supplying (S250) and rinsing (S270) steps may be performed at one time. As shown in FIG. 3 , it is preferable that those steps are performed at least two times so that rinsing efficiency may be improved.
  • the rinsing course may further include a tumbling rinsing step (S300) next to the above spinning (S210), the water draining (S230), the water supplying (S250) and the rinsing (S270).
  • the tumbling rinsing step (S300) is performed in a similar way to the conventional rinsing of the conventional washing machine and its detailed explanation will be omitted.
  • FIG. 4 is a graph illustrating a rotation speed of the drum 20 of the washing machine according to another embodiment of the controlling method.
  • a rotation speed during the water supplying and rinsing step is different, compared with the embodiment of FIG. 3 . Next, the difference will be described.
  • the drum 20 is rotated at the second speed during the water supplying step (S250), and the drum may be rotated at a third speed during the rinsing step (S270).
  • the second speed may be preset as high as the minimum speed at which the laundry is not spaced apart from the inner circumferential surface of the drum 20. However, it is preferable in this embodiment that the second speed is preset lower than the second speed of the above embodiment shown in FIG. 3 .
  • the rotation speed is preset relatively higher than the minimum drum speed to satisfy the efficiency of water supplying and rinsing.
  • the second speed of the drum during the water supplying is preset lower than the second speed of the embodiment shown in FIG. 3 , which is higher than and similar to the minimum drum speed, for example, 100 ⁇ 110 rpm. If the water is supplied at this rotation speed of the drum, water supplying is performed more smoothly.
  • the drum 20 is rotated at a third speed and it is preferable that the third speed is preset to be higher than the minimum drum speed as mentioned above. That is, in case of performing the penetration rinsing step, the laundry is closely in contact with the inner circumferential surface of the drum 20 so as not to be spaced apart therefrom.
  • the third rotation speed is preset to be higher than the minimum drum speed at which the laundry is not spaced apart from the inner circumferential surface of the drum 20. It is preferable that the third speed is lower than the first speed and higher than the second speed. If the drum 20 is rotated at the third speed to perform the penetration rinsing step, the drum 20 should be rotated at a predetermined speed higher than the second speed of the water supplying step to perform rinsing. Furthermore, the object of the penetration rinsing is not to dehydrate the laundry and it is preferable that the third speed of the penetration rinsing step is lower than the first speed of the spinning step.
  • the spinning step (S210), the water draining step (S230), the water supplying step (S250) and the penetration rinsing step (S270) may be performed only one time, respectively. However, as shown in FIG. 3 , it is preferable that they may be performed more than one time repeatedly to enhance the rinsing efficiency of the washing machine.
  • the rinsing cycle may further include at least one tumbling rinsing step (S300) after the spinning step (S210), the water draining step (S230), the water supplying step (S250) and the penetration rinsing step (S270) are performed.
  • the tumbling rinsing step (S300) may be performed similar to the rinsing step of the conventional washing machine and its detailed explanation will be omitted.
  • the controlling method according to the embodiment is explained, however, with reference to the front loading type washing machine and the present invention is not limited thereto. It may be applicable to other kinds of washing machines capable of performing rinsing while rotating the drum, for example, a top loading type drum washing machine.
  • a time taken to perform a rinsing cycle may be reduced.
  • rinsing efficiency may be improved together with the reduced time of the rinsing cycle.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Claims (8)

  1. Procédé de commande d'une machine à laver comprenant :
    la rotation (S210) d'un tambour (20) à un premier régime pour déshydrater le linge;
    l'évacuation (S230) de l'eau d'une cuve après la déshydratation du linge ;
    la fourniture (S250) de l'eau de lavage dans la cuve pour commencer un processus de rinçage après avoir vidangé l'eau dans la cuve ; et
    la fourniture (S270) de l'eau de lavage dans le tambour (20) pendant la rotation du tambour (20) pour rincer le linge,
    dans lequel, à l'étape de l'évacuation de l'eau (S230), le régime de rotation du tambour (20) est réduit jusqu'à un régime prédéterminé supérieur à un régime de tambour minimal auquel le linge est étroitement en contact avec une surface circonférentielle intérieure du tambour (20) par force centrifuge,
    dans lequel, à l'étape de la fourniture de l'eau de lavage dans le tambour (S250), le tambour (20) est mis en rotation à un deuxième régime,
    dans lequel le deuxième régime est supérieur ou égal à un régime de tambour minimal auquel le linge est étroitement en contact avec la surface circonférentielle intérieure du tambour (20) par force centrifuge, et
    dans lequel, à l'étape de la fourniture de l'eau de lavage (S270) dans le tambour (20), l'eau de lavage contenue dans la cuve est mise en circulation par une pompe de circulation au cours de la rotation du tambour (20),
  2. Procédé de commande selon la revendication 1, dans lequel le premier régime est supérieur à 600 tr/mn pour déshydrater le linge.
  3. Procédé de commande selon l'une quelconque des revendications 1 et 2, dans lequel, à l'étape de la fourniture de l'eau dans la cuve, l'eau est fournie à une hauteur prédéterminée inférieure à une distance entre la cuve et le tambour (20).
  4. Procédé de commande selon l'une quelconque des revendications 1 à 3, dans lequel, à l'étape de la fourniture de l'eau dans le tambour (20), l'eau mise en circulation est fournie dans au moins l'un d'un sens horizontal et d'un sens vertical le long d'un intérieur du tambour (20).
  5. Procédé de commande selon l'une quelconque des revendications 1 à 4, dans lequel, à l'étape de la fourniture de l'eau dans le tambour (20), le tambour (20) est mis en rotation à un régime tel que l'eau pénètre à travers le linge étroitement en contact avec une surface circonférentielle intérieure du tambour (20) pour effectuer un rinçage.
  6. Procédé de commande selon l'une quelconque des revendications 1 à 5, comprenant en outre la rotation du tambour (20) au deuxième régime au cours de l'étape de la fourniture de l'eau dans le tambour (20) et de préférence comprenant en outre la rotation du tambour (20) à un troisième régime différent du deuxième régime au cours de l'étape de la fourniture de l'eau dans le tambour (20) et avec plus de préférence comprenant en outre la rotation du tambour (20) à un troisième régime supérieur au deuxième régime au cours de l'étape de la fourniture de l'eau dans le tambour (20).
  7. Procédé de commande selon l'une quelconque des revendications 1 à 6, comprenant en outre la fourniture de l'eau dans le tambour (20) par pulvérisation.
  8. Procédé de commande selon l'une quelconque des revendications 1 à 7, dans lequel la rotation du tambour (20) s'effectue autour d'un axe non vertical.
EP09151009.9A 2008-04-14 2009-01-21 Procédé de commande de machine à laver Expired - Fee Related EP2110474B1 (fr)

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EP2110474A3 (fr) 2013-07-17
RU2010146229A (ru) 2012-05-20
CA2721187A1 (fr) 2009-10-22
KR20090108858A (ko) 2009-10-19
WO2009128603A2 (fr) 2009-10-22
KR101526966B1 (ko) 2015-06-11
BRPI0910581A2 (pt) 2015-09-22
AU2009236835B2 (en) 2014-09-18
US20090255062A1 (en) 2009-10-15
EP2110474A2 (fr) 2009-10-21
RU2461676C2 (ru) 2012-09-20
AU2009236835A1 (en) 2009-10-22
WO2009128603A3 (fr) 2010-12-02
CN101560725A (zh) 2009-10-21
BRPI0910581B1 (pt) 2018-12-04

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