EP1577433B2 - Procédé de commande d'une machine à laver à tambour - Google Patents

Procédé de commande d'une machine à laver à tambour Download PDF

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Publication number
EP1577433B2
EP1577433B2 EP05250882.7A EP05250882A EP1577433B2 EP 1577433 B2 EP1577433 B2 EP 1577433B2 EP 05250882 A EP05250882 A EP 05250882A EP 1577433 B2 EP1577433 B2 EP 1577433B2
Authority
EP
European Patent Office
Prior art keywords
drum
drying
speed
laundry
hot air
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.)
Not-in-force
Application number
EP05250882.7A
Other languages
German (de)
English (en)
Other versions
EP1577433A3 (fr
EP1577433A2 (fr
EP1577433B1 (fr
Inventor
Byung Hwan Ahn
Kwang Soo Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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Publication date
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Priority claimed from KR1020040010413A external-priority patent/KR101053581B1/ko
Priority claimed from KR1020040010412A external-priority patent/KR101053580B1/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1577433A2 publication Critical patent/EP1577433A2/fr
Publication of EP1577433A3 publication Critical patent/EP1577433A3/fr
Application granted granted Critical
Publication of EP1577433B1 publication Critical patent/EP1577433B1/fr
Publication of EP1577433B2 publication Critical patent/EP1577433B2/fr
Not-in-force 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
    • D06F25/00—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 and having further drying means, e.g. using hot air 
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
    • 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
    • D06F2103/08—Humidity
    • 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
    • D06F2103/08—Humidity
    • D06F2103/10—Humidity expressed as capacitance or resistance
    • 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
    • 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 present invention relates to a method for controlling operation of a horizontal or tilt type drum washing machine, in which uniform introduction of hot air deep into an inside of a drum is made possible for enhancing drying capability and efficiency; and an operation control method thereof.
  • washing machines there are a pulsator type washing machine of a top loading type, and a drum type washing machine (in general called as a drum washing machine) having a drum laid down in a horizontal direction, substantially.
  • the drum washing machine performs the washing by a method in which laundry introduced into an inside of the drum is lifted and dropped during rotation of the drum.
  • drum washing machine Even in the drum washing machine, there are a drum washing machine of a type the drum thereof is laid down in a horizontal direction fully, and a tilted type drum washing machine of which drum is tilted at an angle from a horizontal plane, and, depending on a direction of introduction/taking out of laundry into/from the drum, there are a front loading type, and a top loading type drum washing machines.
  • FIGS. 1 and 2 illustrate basic exemplary structures of above washing and drying machines, schematically.
  • the washing and drying machine is provided with a body 10, a tub 20 mounted on an inside of the body 10, a drum 30 rotatably mounted on an inside of the tub 20, washing water supply pipes 51 for guiding flow of the washing water, a driving unit for driving the drum 30, and a drying device for supplying heated air to an inside of the tub 20.
  • a front of the body 10 On a front of the body 10, there is an opening for introduction of laundry, with a door 40 thereon for opening/closing the opening. Between the front of the body 10 and the tub 20, there is a gasket 11.
  • the tub 20 is supported, and mounted in the body 10. There may be a washing water drying heater 80 on a bottom of an inside of the tub 20, for controlling a temperature of the washing water used for washing.
  • the drum 30 is rotatably mounted in the tub 20, and has a plurality of through holes 31 (see FIG 2 ) in a circumferential surface for flow in/out of the washing water.
  • the washing water supply pipe 51 for flow of the washing water, guides the washing water from a service pipe to the inside of the tub 20 through a water supply valve 52.
  • a detergent box 53 in the washing water supply pipe 51 for storing detergent required for washing, so that the washing water being supplied to the inside of the tub 20 carries the detergent.
  • the detergent box 53 in an upper space of the body 10 is designed to enable introduction of the detergent.
  • the washing water supply pipe 51 has an end connected to a front of an upper portion of the tub 20 for filling up the tub 20 with the washing water from a bottom thereof by free falling of the washing water.
  • the driving unit is provided with a drum driving motor 71, and a belt 72 for transmission of a driving power from the drum driving motor 71 to the drum 30.
  • a direct coupling type BLDC motor is used, which is mounted on a rear wall of the tub for direct transmission of the driving power from the motor to the drum.
  • the drying device is provided with a drying duct 60 for flow of air, a drying heater 61 in the drying duct 60, and a fan 62 for forced circulation of air.
  • the drying duct 60 has one end connected to the tub 20 at a lower portion of a front side of an outside circumference thereof and the other end connected to the gasket 11, for circulation of air through the inside of the tub 20.
  • a cooling water supply pipe 54 for supplying cooling water to the air flowing along the drying duct 60 toward the drying heater after drying laundry to condense moisture therein.
  • the cooling water prevents drop of performance of the fan 62, and drop of efficiency of the drying heater 61.
  • the cooling water supply pipe 54 is connected to the water supply valve 52 for supplying washing water.
  • the water supply valve 52 is operated such that only a very low rate of water is supplied to the drying duct 60 compared to a rate of the washing water supply to the drum 30 through the washing water supply pipe 51, if water supply to the drying duct 60 through the cooling water supply pipe 54 is required for condensing.
  • the drying duct draws humid air from the front side of the outside circumference of the tub, the hot air fails to be introduced deep into an inside of the drum 30, but circulates only on an entrance side and is directly discharged to a lower side of the front of the drum 30.
  • EP-A-0816549 discloses a domestic washing machine having a closed drying circuit, air condensation of vapour and self cleaning filter.
  • JP-A-0833669 discloses a washer-dryer having inside a casing a tub supported by a suspension, a spin basket placed inside the tub and controlled in such a way that it is freely rotated about a horizontal axis by a driving motor; a dry air circulation passage through which dry air is fed into the spin basket; and a water storage tank.
  • EP-A-0761864 upon which the preamble of claim 1 is based, discloses a method and machine for drying laundry in which during its drying cycle the drum of the machine rotates at a speed which is lower than the spin speed but higher than the normal drying speed, so that the washing is distributed round the outside of the drum and does not impede the flow of drying air fed into its centre.
  • JP2002-35468 discloses a washing machine and drier.
  • the present application is directed to an operation control method thereof that substantially obviates one or more problems due to limitations and disadvantages of the related art.
  • An object of embodiments of the present invention is to provide an operation control method thereof, in which hot air can be blown deep into an inside of the drum, to introduce the hot air into an inside space of the drum uniformly for drying the laundry. That is, an object of embodiments of the present invention is to provide an operation control method thereof, which enables full use of the hot air introduced into the inside of the drum for enhancing the drying performance, and efficiency.
  • the hot air supplied to an inside of the drum is supplied to an inside of the drum is supplied from an upper portion of a front side of the drum to a lower portion of a rear side of the drum, or an upper portion of a rear side of the drum to a lower portion of a front side of the drum.
  • the method further comprises at least one time of: a section for turning on a drum driving motor to accelerate a rotation speed of the drum to a speed equal to, or higher than a speed enough to keep the laundry in the drum attached to, and not fall off from, the inside surface of the drum; a section for maintaining the rotating speed of the drum at a speed equal to, or higher than a speed enough to keep the laundry in the drum attached to, and not fall off from, the inside surface of the drum; and a section for reducing the rotating speed of the drum to a low speed at which the laundry in the drum is unable to be attached to, but to fall off from, the inside surface of the drum, for progressing drying.
  • the section for reducing the rotating speed of the drum to a low speed at which the laundry in the drum may be unable to be attached to, but to fall off from, the inside surface of the drum, for processing drying includes the step of alternating a rotating direction of the drum.
  • the method further comprises the step of measuring dryness of the laundry in the drum in the middle of progressing a drying cycle.
  • the dryness is measure in a state the drum is stationary, or the rotation speed of the drum is enough to keep the laundry attached to, and not fall from, the inside circumferential surface of the drum.
  • the method further comprises the steps of: raising the rotating speed of the drum to maintain a speed enough to keep the laundry attached to, and not fall off from, the inside surface of the drum for progressing drying, if measured dryness is below a preset dryness; and reducing the rotating speed of the drum to a low speed at which the laundry is unable to be attached to, but fall off from, the inside surface of the drum, for progressing drying, if measured dryness is higher than the preset dryness.
  • a drum washing machine includes a tub 20 for holding washing water, a drum 30 rotatably mounted on an inside of the tub 20, for introducing laundry therein, a drying heater 61 for heating air being supplied to the inside of the drum 30, a drying duct 60 forming a flow passage for supplying hot air heated by the drying heater 61, and fan 62 for forced supply of the hot air heated by the drying heater 61 to the inside of the drum 30, wherein a hot air inlet 60a is positioned at a front of the drum 30, and a humid air recovery opening 60b is positioned at a rear of the drum 30.
  • the hot air inlet 60a is positioned at upper side of the front of the drum 30, and the humid air opening 60b is positioned at a lower side of the rear of the drum 30.
  • FIG 4 illustrates a horizontal type drum washing machine
  • the hot air supply and exhaust structure is also applicable to the tilt type drum washing machine.
  • the hot air is introduced into the inside of the drum through an upper portion of the front of the drum 30 by the forced air blow action of the fan 62, flows from the front to a rear of the drum along a direction of the arrow, passes a lower portion of a rear side of the drum, and is introduced into the drying duct 60 through the humid air recovery opening 60b in the rear wall of the tub 20.
  • a drum washing machine includes a tub 20 for holding washing water, a drum 30 rotatably mounted on an inside of the tub 20, for introducing laundry therein, a drying heater 61 for heating air being supplied to the inside of the drum 30, a drying duct 60 forming a flow passage for supplying hot air heated by the drying heater 61, and fan 62 for forced supply of the hot air heated by the drying heater 61 to the inside of the drum 30, wherein a hot air inlet 60a is positioned at a rear of the drum 30, and a humid air recovery opening 60b is positioned at a front of the drum 30.
  • the hot air inlet 60a is positioned at an upper side of the rear of the drum 30, and the humid air opening 60b is positioned at a lower side of the front of the drum 30.
  • FIG. 5 illustrates a tilt type drum washing machine
  • the hot air supply and exhaust structure is also applicable to the horizontal type drum washing machine.
  • the hot air is introduced into the inside of the drum through an upper portion of the rear of the drum 30 by the forced air blow action of the fan 62, flows from the rear to a front of the drum along a direction of the arrow, passes a lower portion of a front side of the drum, and flows toward the humid air recovery opening 60b of the drying duct 60 along the guide flow passage 21 in the lower side of the tub 20.
  • the tub 20 is formed of stainless steel, or plastic. Regardless of material of the tub 20, in the rear wall of the tub, there are the hot air inlet 60a for supplying hot air, and a hot air outlet 60c for discharge of the hot air (see FIG. 6 ).
  • the hot air inlet 60a and the hot air outlet 60c each has a shape of slot, especially in a shape of an arc in view of strength of the tub rear wall, and connected to the drying duct 60, directly.
  • the drum of the present disclosure has a plurality of pass through holes in an outside circumferential surface of the drum, which are not shown in the drawings.
  • a drying cycle while rotating the drum at a speed equal to or higher than a speed (for an example, 100rpm) enough to keep the laundry to be attached to, and not to fall from, but not to be attached closely to, the inside surface of the drum, the hot air is supplied to an inside of the drum, for progressing drying.
  • a speed for an example, 100rpm
  • the speed enough to keep the laundry to be attached to, and not to fall off from, but not to be attached closely to the inside surface of the drum is a speed at which an outward acceleration acting on a point of an inside circumferential surface of the drum in a radial direction of the drum is equal to an acceleration of the gravity.
  • the hot air supplied to the inside of the drum flows in a direction along a driving shaft of the drum. That is, the hot air flows from the hot air inlet 60a (see FIG 4 ) in the front of the drum to the rear of the drum, or from the hot air inlet 60a (see FIG. 5 ) to the front of the drum.
  • the hot air is supplied from the upper side of the front of the drum to the lower side of the rear of the drum, or from the upper side of the rear of the drum to the lower side of the front of the drum.
  • the hot air is supplied in the driving shaft direction of the drum in a state the drum rotates at the speed enough to keep the laundry to be attached to, and not to fall off from an inside surface of the drum, the hot air progresses along the driving shaft direction while swirling along the inside circumferential surface of the drum.
  • the hot air progresses in a form of a swirl starting from the front side of the drum to the rear side of the drum until the hot air escapes therefrom, or the hot air progresses in a form of a swirl starting from the rear side of the drum to the front side of the drum until the hot air escapes therefrom. According to this, contact of the hot air with the laundry on the inside circumferential surface of the drum increases, to enhance the drying performance, and efficiency.
  • the drying cycle progressed thus includes an acceleration section in which the motor for driving the drum is turned on, to accelerate a rotation speed of the drum until the rotation speed reaches to a preset speed which is equal to, or higher than a speed enough to keep the laundry in the drum to be attached to, and not to fall off from the inside surface of the drum, a section for maintaining the rotation speed at the preset speed, and a section in which the rotation speed of the drum is reduced to a low speed (about 20 - 30rpm) at which the laundry in the drum is unable to be attached to, but to fall from the inside surface of the drum, for progressing drying.
  • a preset speed which is equal to, or higher than a speed enough to keep the laundry in the drum to be attached to, and not to fall off from the inside surface of the drum
  • a section for maintaining the rotation speed at the preset speed and a section in which the rotation speed of the drum is reduced to a low speed (about 20 - 30rpm) at which the laundry in the drum is unable to be attached to
  • above acceleration, maintained speed, and low speed sections are performed at least once repeatedly before finish of the drying. This is for enhancing the drying efficiency by keeping exposing portions of the laundry that are not dried yet by changing positions of the laundry.
  • a rotation direction of the drum is alternated in the section drying is progressed in a low speed state in which the laundry falls from the inside surface of the drum.
  • the method for controlling drying laundry in a horizontal, or tilted type drum washing machine in accordance with the present disclosure includes the steps of turning off a drum driving motor as spinning is finished, turning on a drying heater and a fan, and turning on the drum driving motor again before the laundry kept attached to an inside circumferential surface of the drum at the time of spinning falls to maintain a threshold speed enough to keep the laundry to be attached to the inside circumferential surface of the drum and supplying heated air into an inside of the drum, to progress drying.
  • the drying heater and the fan may be turned on at the same time with turning off the drum driving motor when the spinning is finished, or the drying heater and the fan may be turned on after a predetermined time period is passed from the turning off of the drum driving motor. In this instance, no braking force is applied to the drum, so that the drum spinning in a state the drum driving motor is turned off as the spinning is finished rotates freely by the inertia.
  • the drying heater and the fan may, or may not be turned on at the same time.
  • the hot air flows along a direction of a drum driving shaft line in the drum, for which it is preferable that the hot air is supplied from a front to a rear of the drum, or vice versa, like the first embodiment.
  • the dry progressing step includes a section in which the rotation speed of the drum is maintained at a speed equal to, or higher than a speed (for an example, 100rpm) enough to keep the laundry in the drum to be attached to, and not to fall off from, but not to be attached closely to, the inside circumferential surface of the drum, and optionally may include a section in which the rotation speed of the drum is reduced to a low speed (about 20 ⁇ 30rpm) at which the laundry in the drum is unable to be attached to the inside circumferential surface of the drum.
  • a speed for an example, 100rpm
  • this reduces a drying time period as the drying heater and the fan are turned on starting from the inertial rotation of the drum following finishing of spinning to supply hot air, and drying laundry starting from right after the finishing of spinning, and to improve drying efficiency and performance as the rotation speed of the drum is maintained at a speed higher than the speed enough to keep the laundry in the drum to be attached to the inside circumferential surface of the drum, to make the hot air to progress in a form of a swirl.
  • the drum washing machine is further provided with means in the drum 30 for determining dryness (for an example, an electrode sensor: not shown) of the laundry.
  • the method includes the steps of measuring dryness of laundry in the drum in a state the drum is stationary after finish of spinning, supplying hot air to an inside of the drum while rotating the drum at a speed equal to or higher than a speed at which an outward acceleration acting on a point of an inside circumferential surface of the drum in a radial direction of the drum is equal to an acceleration of the gravity if the dryness measured in above step is below a preset dryness, and supplying hot air to an inside of the drum while rotating the drum at a reduced speed at which the laundry is unable to be attached to the inside surface of the drum if the dryness measured in above step is higher than the preset dryness, for drying.
  • the dryness may be measured in a state before the drum is stopped fully after the finish of spinning.
  • the hot air flows in a direction the same or substantially same with a drum driving shaft in the drum. Especially, it is preferable that the hot air flows from a front to a rear of the drum, or vice versa.
  • a rotation direction of the drum is alternated in the section drying is progressed in a reduced speed state to a speed (about 20 - 30rpm) at which the laundry falls from the inside surface of the drum.
  • a method for controlling drying operation of a horizontal, or tilt type drum washing machine includes the steps of, after finish of spinning, supplying hot air to an inside of the drum while rotating the drum at a speed equal to, or higher than a speed (for an example, 100rpm) enough to keep the laundry to be attached to, and not to be fall off from an inside surface of the drum, and progressing the drying while maintaining a threshold speed which is a speed enough to keep the laundry to be attached to, and not to fall off from, an inside surface of the drum if the dryness detected in the middle of above step is below preset dryness, and progressing the drying in a reduced speed state to a speed (about 20 ⁇ 30rpm) at which the laundry falls off from the inside surface of the drum if the dryness is higher than the preset dryness.
  • a speed for an example, 100rpm
  • the dryness is measured in a state the drum is rotated at a speed higher than a speed enough to keep the laundry to be attached to the inside circumferential surface of the drum, and the speed of the drum is controlled to maintain, or reduce according to a result of the measurement.
  • the speed of the drum is controlled to maintain, or reduce according to a result of the measurement.
  • the hot air flows in a direction the same with a drum driving shaft in a drum.
  • the hot air flows from a front to a rear of the drum, or vice versa.
  • a rotation direction of the drum is alternated in the section the drying is progress in a reduced speed state to a speed (about 20 - 30rpm) at which the laundry in the drum falls off the inside surface of the drum.
  • the example enables to reduce a drying time period as the hot air is supplied to an inside of the drum starting from the inertial rotation of the drum following finishing of spinning, to progress drying, and to improve drying performance and efficiency as the rotation speed of the drum is maintained at a speed equal to, or higher than a speed enough to keep laundry not to fall off from the inside circumferential surface of the drum so that the hot air progresses while swirling at a dryness below a preset dryness.
  • the rotation speed of the drum is reduced, to change positions of the laundry, in which the a rotation direction of the drum is alternated, for changing positions of the laundry. According to this, portions of laundry dried less than other portions are exposed newly, to which the hot air comes into contact, to dry the less dried portions.
  • a portion of the clothes is liable to be inserted in the holes in the wall of the drum if the rotation speed of the drum is high excessively. Moreover, the clothes is liable be inserted in the holes in the wall of the drum, to make circulation of the clothes difficult if the drying time period is long excessively even if the rotation speed of the drum is not so high excessively, but only is maintained at a speed (for an example; 100rpm) enough to keep the laundry to be attached to an inside of the drum.
  • a drying finish time point can be determined as follows.
  • the finish of drying may be simply set to finish the drying at the time the set time is reached.
  • the drying may be finished by setting a drying time period, measuring the dryness when the set drying time period is reached, and extending the drying time period according to the measured dryness.
  • the finish of drying may be determined with reference to a preset dryness which is different from the set dryness in examples.
  • FIG. 11 illustrates a graph showing a rotation speed of a motor for driving the drum, and turn on/off states of drying heater and fan while drying.
  • a section for progressing drying at a speed in which the laundry can not be attached to, but fall off from the inside surface of the drum in a state the drying heater and the fan are turned on a section in which the drum driving motor is turned on to accelerate the drum to a speed higher than a speed enough to keep the laundry to be attached to, and not to fall off from the inside surface of the drum, and a section in which the rotation speed of the drum is maintained at a speed enough to keep the laundry to be attached to, and not to fall off from the inside surface of the drum, are mixed.
  • a rotation direction of the drum can be alternated in the section in which the rotation speed of the drum is low (about 20 - 30rpm).
  • the structure for supplying hot air in a drum washing machine and operation control method thereof has the following advantages.
  • the introduction of hot air starting from a front to a rear or vice versa deep into the drum improves drying efficiency and performance.
  • the rotation speed of the drum is maintained at a speed enough to keep laundry not to fall off from the inside circumferential surface of the drum, such that the hot air comes into contact with the laundry while progressing in swirl, the drying performance and efficiency is improved.
  • the supply of hot air to the inside of the drum starting from the inertial rotation of the drum following finish of spinning enables to shorten a drying time period.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Claims (7)

  1. Procédé pour commander le fonctionnement d'une machine à laver à tambour de type horizontal ou à inclinaison comprenant une cuve (20) pour contenir de l'eau de lavage, un tambour (30) monté de façon rotative dans la cuve, pour y introduire du linge, un moteur d'entraînement de tambour pour fournir une force d'entraînement pour faire tourner le tambour, un élément chauffant de séchage (61) pour chauffer de l'air qui est distribué à une partie intérieure du tambour (30), une conduite de séchage (60) formant un passage d'écoulement pour distribuer de l'air chaud chauffé par l'élément chauffant de séchage (61) à la partie intérieure du tambour (30), et un ventilateur (62) pour la distribution forcée de l'air chaud chauffé par l'élément chauffant de séchage (61) à la partie intérieure du tambour (30), et
    le procédé comprenant l'étape de, dans la progression d'un cycle de séchage, rotation du tambour (30) à une vitesse suffisante pour maintenir le linge attaché à une surface intérieure du tambour (3), et pour qu'il ne tombe de celle-ci, mais qu'il ne soit pas attaché étroitement à celle-ci, pour la progression du séchage,
    caractérisé en ce que la machine à laver à tambour de type horizontal ou à inclinaison comprend en outre une structure d'alimentation en air chaud dans laquelle une entrée d'air chaud (60a) de la conduite de séchage (60) est positionnée sur un côté avant ou un côté arrière du tambour (30), et une ouverture de récupération d'air humide de la conduite de séchage (60) est positionnée sur le côté arrière ou le côté avant du tambour (30) de façon opposée à l'entrée d'air chaud (60a),
    le procédé comprenant les étapes consistant à :
    arrêter le moteur d'entraînement de tambour lorsque la rotation est finie ;
    allumer l'élément chauffant de séchage et le ventilateur ;
    après l'arrêt du moteur d'entraînement, distribuer de l'air chaud à une partie intérieure du tambour (30) à travers l'entrée d'air chaud (60a) positionnée à un avant ou un arrière du tambour (30), en même temps que la rotation du tambour (30), dans la progression du cycle de séchage ; et
    distribuer l'air chaud à une partie intérieure du tambour (30) tout en maintenant le tambour à une vitesse supérieure à la vitesse de seuil à laquelle le linge maintenu attaché à la surface circonférentielle intérieure du tambour ne tombe pas, en allumant de nouveau le moteur d'entraînement de tambour avant que la vitesse du tambour tournant sous l'effet de l'inertie ne chute à une vitesse à laquelle le linge maintenu attaché à la surface circonférentielle intérieure du tambour tombe.
  2. Procédé selon la revendication 1, dans lequel l'air chaud distribué à une partie intérieure du tambour (30) est distribué d'une partie supérieure d'un côté avant du tambour (30) à une partie inférieure d'un côté arrière du tambour (30), ou d'une partie supérieure d'un côté arrière du tambour (30) à une partie inférieure d'un côté avant du tambour (30).
  3. Procédé selon la revendication 1, comprenant en outre au moins une fois parmi :
    une section pour allumer un moteur d'entraînement de tambour (71) pour accélérer une vitesse de rotation du tambour (30) jusqu'à une vitesse égale ou supérieure à une vitesse suffisante pour maintenir le linge dans le tambour (30) attaché à la surface intérieure du tambour (30), et pour qu'il ne tombe pas de celle-ci ;
    une section pour maintenir la vitesse de rotation du tambour (30) à une vitesse égale ou supérieure à une vitesse suffisante pour maintenir le linge dans le tambour (30) attaché à la surface intérieure du tambour (30), et pour qu'il ne tombe pas de celle-ci ; et
    une section pour réduire la vitesse de rotation du tambour à une faible vitesse à laquelle le linge dans le tambour (30) ne peut pas être attaché à la surface intérieure du tambour (30), mais peut tomber de celle-ci, pour la progression du séchage.
  4. Procédé selon la revendication 3, dans lequel la section pour réduire la vitesse de rotation du tambour (30) à une faible vitesse à laquelle le linge dans le tambour (30) ne peut pas être attaché à la surface intérieure du tambour (30), mais peut tomber de celle-ci, pour la progression du séchage, comprend l'étape d'alternance d'une direction de rotation du tambour (30).
  5. Procédé selon la revendication 1, comprenant en outre l'étape de mesure de la siccité du linge dans le tambour (30) au milieu de la progression d'un cycle de séchage.
  6. Procédé selon la revendication 5, dans lequel la siccité est mesurée dans un état dans lequel le tambour (30) est stationnaire, ou la vitesse de rotation du tambour (30) est suffisante pour maintenir le linge attaché à la surface circonférentielle intérieure du tambour (30), et pour qu'il ne tombe pas de celle-ci.
  7. Procédé selon la revendication 6, suivant un résultat de mesure de la siccité, comprenant en outre les étapes consistant à :
    augmenter la vitesse de rotation du tambour (30) pour maintenir une vitesse suffisante pour maintenir le linge attaché à la surface intérieure du tambour (30), et pour qu'il ne tombe pas de celle-ci, pour la progression du séchage, si la siccité mesurée est inférieure à une siccité prédéterminée ; et
    réduire la vitesse de rotation du tambour (30) à une faible vitesse à laquelle le linge ne peut pas être attaché à la surface intérieure du tambour (30), mais peut tomber de celle-ci, pour la progression du séchage, si la siccité mesurée est supérieure à la siccité prédéterminée.
EP05250882.7A 2004-02-17 2005-02-16 Procédé de commande d'une machine à laver à tambour Not-in-force EP1577433B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020040010413A KR101053581B1 (ko) 2004-02-17 2004-02-17 드럼세탁기의 건조용 열풍 공급구조 및 그에 따른운전제어방법
KR1020040010412A KR101053580B1 (ko) 2004-02-17 2004-02-17 드럼세탁기의 건조운전제어방법
KR2004010413P 2004-02-17
KR2004010412P 2004-02-17

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EP1577433A2 EP1577433A2 (fr) 2005-09-21
EP1577433A3 EP1577433A3 (fr) 2008-11-19
EP1577433B1 EP1577433B1 (fr) 2013-04-03
EP1577433B2 true EP1577433B2 (fr) 2015-11-25

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EP (1) EP1577433B2 (fr)
CN (1) CN100487181C (fr)
AU (1) AU2005200711B2 (fr)

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Also Published As

Publication number Publication date
CN100487181C (zh) 2009-05-13
EP1577433A3 (fr) 2008-11-19
EP1577433A2 (fr) 2005-09-21
AU2005200711B2 (en) 2011-10-06
US20050188471A1 (en) 2005-09-01
AU2005200711A1 (en) 2005-09-01
CN1657683A (zh) 2005-08-24
EP1577433B1 (fr) 2013-04-03

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