EP1365057B1 - Maschine zum Waschen und Trocknen mit Verfahren zur Entfernung von Verunreinigungen - Google Patents

Maschine zum Waschen und Trocknen mit Verfahren zur Entfernung von Verunreinigungen Download PDF

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Publication number
EP1365057B1
EP1365057B1 EP02256241A EP02256241A EP1365057B1 EP 1365057 B1 EP1365057 B1 EP 1365057B1 EP 02256241 A EP02256241 A EP 02256241A EP 02256241 A EP02256241 A EP 02256241A EP 1365057 B1 EP1365057 B1 EP 1365057B1
Authority
EP
European Patent Office
Prior art keywords
drying
machine
removal process
impurity removal
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
EP02256241A
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English (en)
French (fr)
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EP1365057A1 (de
Inventor
Jae-Sin 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.)
Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP1365057A1 publication Critical patent/EP1365057A1/de
Application granted granted Critical
Publication of EP1365057B1 publication Critical patent/EP1365057B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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
    • D06F58/45—Cleaning or disinfection of machine parts, e.g. of heat exchangers or filters
    • 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
    • D06F2101/00—User input for the control of domestic laundry 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level
    • 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
    • D06F2105/34—Filtering, e.g. control of lint removal devices
    • 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
    • D06F2105/58—Indications or alarms to the control system or to the user
    • 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 

Definitions

  • the present invention relates to a washing and drying machine comprising a rotatable tub and a fixed tub and an operating method thereof.
  • FIG. 1A is a perspective view showing the construction of such a conventional drum type washing machine.
  • a fixed tub 102 is horizontally set in a cabinet 100, and contains wash water therein.
  • a rotatable tub 108 is set inside the fixed tub 102, and is rotated by the drive force of a motor 110 to perform washing and spin-drying processes.
  • the rotatable tub 108 is perforated on its sidewall with a large number of spin-drying perforations, to allow wash water to pass from the fixed tub 102 to the rotatable tub 108, and to allow wash water separated from laundry by a centrifugal force to flow to a space defined between the fixed tub 102 and the rotatable tub 108.
  • Such known washing machines, and/or methods of operating such washing machines are disclosed in prior art documents DE 197 42 282 (preamble of claims 1 and 12), JP 04 240486, JP 04 108494, JP 02 104396, GB 972411, EP 1055767 and US 5497563.
  • Such drum type washing machines are classified into several types.
  • One type is provided with a drying heater 114.
  • Such a type additionally performs a drying process as well as washing, rinsing, and spin-drying processes.
  • the drying process of drying laundry using the drying heater 114 is as follows. First, air is heated to a high temperature by the drying heater 114 to become dried air. The dried air flows into the fixed tub 102 as shown by the arrow 1 of Figure 1A to absorb moisture contained in laundry in the rotary tub 108. The resultant moisture-laden air moisture is caused to flow along the sidewall of the fixed tub 102 by a blowing fan 112 in the direction shown by the arrow 2 of Figure 1A.
  • the moisture contained in the air is condensed on the inside surface of the fixed tub 102 by a condensing plate 104 mounted to the sidewall of the fixed tub 102.
  • the condensing plate 104 condenses the moisture-laden air through the use of a small quantity of cool water, which is supplied through a condensing hose 106 connected to an external water supply source.
  • the air is reheated by the drying heater 114 and fed into the fixed tub 102 by the fan 112 in the direction given by the arrow 1.
  • Moisture condensed by the condensing plate 104 flows down along the inside surface of the tub 102 to reach the bottom of the tub 102. Thereafter, the moisture is discharged to the outside by a drain pump 116.
  • FIG 1B is a view showing the conventional drum type washing machine, when wash water is fed into the washing machine.
  • wash water is fed into the fixed tub 102 until it reaches a level corresponding to one third of the entire height of the fixed tub 102. If too much wash water is fed into the fixed tub 102, the dropping height of laundry becomes small, so effective washing may not be accomplished.
  • a variety of dried impurities 154 such as lint, can be separated from the laundry and deposited on the inside surface of the fixed tub 102.
  • the dried impurities 154 are deposited on the upper portion of the fixed tub 102, i.e. the portion which is not bathed in wash water, thus causing the interior of the washing tub 102 to become dirty. Furthermore, it is difficult to clean the washing tub because only a small space is formed between the fixed tub 102 and the rotary tub 108.
  • the invention is characterised by a control unit arranged to detect when an amount of drying performed exceeds a threshold, and means responsive to the control unit to automatically initiate an impurity removal process once the amount of drying exceeds the threshold value, the washing machine further comprising a display for displaying a value representing a performed amount of drying and, an input unit associated with the control unit to enable a user to manually initiate an impurity removal process based on the displayed value prior to the amount of drying exceeding the threshold value.
  • a washing machine may be designed to circulate air heated by a drying heater through the washing tub for absorbing moisture contained in laundry, and to perform a drying process for drying laundry by discharging the moisture-laden air to the outside.
  • a control unit may initiate an impurity removing process for removing dried impurities from the inside surface of the fixed tub.
  • FIG. 2 is a block diagram of a drum type washing machine in accordance with this invention.
  • a control unit 202 controls all processes of the washing machine, including washing, rinsing, spin-drying, and drying processes.
  • the control unit 202 is arranged to count the number of drying processes performed, and to compare this figure to a predetermined threshold. Alternatively or in addition, the control unit is arranged to calculate the total time which the washing machine has spent performing a drying process.
  • a user sets a washing condition as desired or selects desired processes of the washing machine, by means of an input unit 206. Signals representing the washing condition and command sent by the input unit 206 are applied to the control unit 202.
  • a water level sensor 204 senses the quantity of wash water fed into a fixed tub (not shown), and outputs a signal representing a sensed value to the control unit 202. The water level sensor 204 is arranged to sense whether or not wash water in the fixed tub reaches the maximum water level during an impurity removing process.
  • a storage unit 208 stores data regarding the counted number of performed drying processes and/or the counted drying time in a non-volatile memory, such as EPROM (Erasable and Programmable Read Only Memory).
  • the control unit 202 counts the number of the performed drying processes (or the drying time), stores the counted value in the storage unit 208, and displays the value on a display unit 218.
  • a drive unit 210 drives a motor 212, a drain pump 214, a drying heater 216, and the display unit 218.
  • the motor 212 causes a rotary tub 220 to rotate in alternating directions at regular time intervals during the washing and rinsing processes, and to rotate in a forward direction at a high speed during spin-drying.
  • the drain pump 214 drains water from the bottom of the fixed tub.
  • the drying heater 216 heats air flowing into the fixed tub.
  • the display unit 218 displays the number of the performed drying processes (or the drying time) to allow it to be viewed by a user.
  • FIG 3 is a flowchart of an impurity removing process of the drum type washing machine of this invention.
  • the control unit 202 increases a counted value (n) of the performed drying processes (or the drying time) at step 304.
  • the counted value (n) is increased by one.
  • the counted value (n) is increased by a time equal to the drying time.
  • the number of the performed drying processes (or the drying time) is counted using a counter provided in the control unit 202, or provided at a position separate from the control unit 202.
  • the control unit 202 compares the counted value (n) of the number of the performed drying processes (or the drying time) with a preset reference value (n) or threshold at step S306. When the counted value (n) of the number of the performed drying processes (or the drying time) exceeds the threshold (n r ), the control unit 202 causes an impurity removing process to be performed at steps S310 to S316. A user may cause the impurity removal process to be performed if the value (n) of the number of the performed drying process (or the drying time) does not exceed the reference value (n). A decision may be made on the basis of the number of the performed drying processes (or the drying time) displayed on the display unit 218. To forcibly perform the impurity removing process, the user appropriately manipulates the input unit 206 at step S308.
  • the impurity removing process is as follows. First, water is supplied to the fixed tub until it reaches the maximum water level at step S310. When the filling is complete, the rotary tub 220 is agitated for a predetermined period of time to generate water currents. As the rotary tub 220 is agitated, the dried impurities deposited on the inside surfaces of the fixed tub and the rotary tub 220 are displaced by the water currents. When the rotary tub 220 has been agitated for a preset period of time, the control unit 202 drives the drain pump 214 to perform a draining process at step S314. Here, impurities previously deposited on the inside surface of the fixed tub are discharged to the outside along with the drained wash water. When the draining process is finished, data concerning the number of performed drying processes (or the drying time), in the control unit 202 and displayed on the display unit 218, is reset at step S316. This is achieved by resetting the memory.
  • Figure 4 is a view showing the drum type washing machine of this invention when the washing machine is filled with wash water during the impurity removal process. Thereafter, the rotary tub 404 is agitated to remove the dried impurities 408 from the inside surface of the fixed tub 402.
  • the embodiment provides a drum type washing machine which automatically performs an impurity removing process when the number of the performed drying processes or an accumulated drying time exceeds a preset reference value.
  • the embodiment provides a drum type washing machine which automatically performs an impurity removing process when the number of the performed drying processes or an accumulated drying time exceeds a preset reference value.
  • the machine also displays the number of the performed drying processes or the drying time on a display unit. A user may be able to carry out the impurity removing process or not without the threshold having been exceeded.
  • the described washing machine allows dried impurities to be easily removed from the inside surface of the fixed tub of the drum type washing machine, thus preventing the interior of the washing tub from becoming dirty.

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

Claims (17)

  1. Wasch- und Trocknungsmaschine mit einer drehbaren Tonne (404), einer feststehenden Tonne (402), einer Steuereinheit (202) und einer Eingabeeinheit (206), die angepasst ist, um es einem Benutzer zu ermöglichen, von Hand einen Verunreinigungsentfernungsarbeitsgang zum Entfernen getrockneter Verunreinigungen von der inneren Oberfläche der feststehenden Tonne (402) in Gang zu setzen, dadurch gekennzeichnet, dass die Steuereinheit (202) angeordnet ist, um festzustellen, wann ein durchgeführter Trocknungsumfang einen Schwellenwert überschreitet, und Mitteln (210), die auf die Steuereinheit reagieren, um automatisch den Verunreinigungsentfernungsarbeitsgang in Gang zu setzen; sobald der durchgeführte Trocknungsumfang den Schwellenwert überschreitet, wobei die Waschmaschine ferner eine Anzeige aufweist, die angepasst ist, um einen Wert anzuzeigen, der einen durchgeführten Trocknungsumfang darstellt, und die Eingabeeinheit mit der Steuereinheit verbunden ist, um es einem Benutzer zu ermöglichen, gestützt auf den angezeigten Wert, von Hand einen Verunreinigungsentfernungsarbeitsgang in Gang zu setzen, bevor der Trocknungsumfang den Schwellenwert überschreitet.
  2. Maschine nach Anspruch 1, bei der der Trocknungsumfang die aufgelaufene Trocknungszeit ist.
  3. Maschine nach Anspruch 1, bei der der Trocknungsumfang die Anzahl an durchgeführten Trocknungsarbeitsgängen ist.
  4. Maschine nach einem vorstehenden Anspruch, mit einer Datenspeichereinheit (208) zum Speichern von Daten, die den Trocknungsumfang darstellen.
  5. Maschine nach Anspruch 4, bei der der Datenspeicher einen permanenten Speicher enthält.
  6. Maschine nach Anspruch 4 oder 5, mit Mitteln zum Zurücksetzen der Daten, wenn der Verunreinigungsentfernungsarbeitsgang durchgeführt ist.
  7. Maschine nach einem vorstehenden Anspruch mit Mitteln, die auf die in Gang setzenden Mittel reagieren, um zu bewirken, dass Wasser in die Maschine eingeleitet wird, Mitteln (212) zum Bewegen, vorzugsweise Rütteln, der drehbaren Trommel und Mitteln (214) zum Ablassen von Wasser von der Maschine.
  8. Maschine nach Anspruch 7, wobei der Verunreinigungsentfernungsarbeitsgang die Schritte aufweist:
    Einspeisen von Waschwasser in die feststehende Tonne (S310);
    Rütteln der Drehtonne für einen vorbestimmten Zeitraum (S312); und
    Ablassen des Waschwassers (S314) derart, dass die getrockneten Verunreinigungen zusammen mit dem Waschwasser nach außen ausgetragen werden.
  9. Maschine nach Anspruch 8, wobei in dem Verunreinigungsentfernungsarbeitsgang das Waschwasser in die feststehende Tonne eingespeist wird, bis es einen maximalen Wasserstand erreicht.
  10. Maschine nach Anspruch 9, in die Wasser bis zu einem zumindest halb vollen Füllstand eingeleitet ist.
  11. Maschine nach Anspruch 10, in die Wasser bis zu einem im Wesentlichen vollen Füllstand eingeleitet ist.
  12. Verfahren zum Betrieb einer Wasch- und Trocknungsmaschine mit einer drehbaren Tonne (404), einer feststehenden Tonne (402), einer Steuereinheit (202) und einer Eingabeeinheit (206), die angepasst ist, es einem Benutzer zu ermöglichen, von Hand einen Verunreinigungsentfernungsarbeitsgang zum Entfernen getrockneter Verunreinigungen von der inneren Oberfläche der feststehenden Tonne (402) in Gang zu setzen, wobei das Verfahren gekennzeichnet ist durch die Schritte des Bereitstellens der Steuereinheit, um festzustellen, wann ein durchgeführter Trocknungsumfang einen Schwellenwert (S306) überschreitet, und als Antwort auf die Feststellung durch die Steuereinheit, des automatischen Ingangsetzens des Verunreinigungsentfernungsarbeitsganges sobald der Trocknungsumfang den Schwellenwert überschreitet, wobei das Verfahren ferner die Schritte aufweist:
    Anzeigen eines Wertes, der den Trocknungsumfang darstellt, auf einer Anzeige, und
    Bereitstellen einer Eingabeeinheit, um es einem Benutzer zu ermöglichen, gestützt auf den angezeigten Wert, einen Verunreinigungsentfernungsarbeitsgang in Gang zu setzen, bevor der Trocknungsumfang den Schwellenwert überschreitet.
  13. Verfahren nach Anspruch 12, einschließlich Zählen der Anzahl an durchgeführten Trocknungsarbeitsgängen (S304).
  14. Verfahren nach Anspruch 12 oder 13, einschließlich Zählen einer Gesamtlaufzeit der durchgeführten Trocknungsarbeitsgänge (S304).
  15. Verfahren nach einem der Ansprüche 12 bis 14, wobei der Verunreinigungsentfernungsarbeitsgang die Schritte aufweist:
    Einspeisen von Waschwasser in die feststehende Tonne (S310), Bewegen der Drehtonne für einen vorbestimmten Zeitraum (S312) und
    Ablassen des Waschwassers (S314) derart, dass die getrockneten Verunreinigungen zusammen mit dem Waschwasser nach außen ausgetragen werden.
  16. Verfahren nach Anspruch 15, wobei in dem Verunreinigungsentfernungsarbeitsgang das Waschwasser in die feststehende Tonne eingespeist wird, bis es einen maximalen Wasserstand erreicht.
  17. Verfahren nach einem der Ansprüche 12 bis 16, mit dem Schritt des Zurücksetzens von Daten (S316) über die Anzahl an durchgeführten Trocknungsarbeitsgängen, die auf einer Datenspeichereinheit (208) gespeichert sind, wenn der Verunreinigungsentfernungsarbeitsgang abgeschlossen ist.
EP02256241A 2002-05-21 2002-09-10 Maschine zum Waschen und Trocknen mit Verfahren zur Entfernung von Verunreinigungen Expired - Fee Related EP1365057B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2002028078 2002-05-21
KR10-2002-0028078A KR100468918B1 (ko) 2002-05-21 2002-05-21 드럼 세탁기 및 그 제어 방법

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EP1365057A1 EP1365057A1 (de) 2003-11-26
EP1365057B1 true EP1365057B1 (de) 2006-11-08

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EP (1) EP1365057B1 (de)
KR (1) KR100468918B1 (de)
DE (1) DE60215920T2 (de)
RU (1) RU2221094C1 (de)

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DE102005061844A1 (de) 2004-12-27 2006-07-20 Lg Electronics Inc. Trommelwaschmaschine mit Wäschetrocknungsfunktion und Verfahren zu deren Steuerung
KR100860649B1 (ko) * 2004-12-27 2008-09-26 엘지전자 주식회사 건조 겸용 드럼세탁기 및 그 제어방법
KR100789834B1 (ko) 2006-07-04 2008-01-02 엘지전자 주식회사 드럼 세탁기 및 드럼 세탁기의 터브 세척 방법
CN101529007B (zh) * 2006-10-31 2013-08-28 阿塞里克股份有限公司 家用电器
KR101448625B1 (ko) 2007-12-31 2014-10-08 엘지전자 주식회사 세탁기의 제어방법
DE102008006347A1 (de) * 2008-01-28 2009-07-30 BSH Bosch und Siemens Hausgeräte GmbH Kondensationstrockner sowie Verfahren zu seinem Betrieb
EP2108726A3 (de) 2009-06-29 2009-10-21 V-Zug AG Waschmaschine mit Hygieneanzeige
DE102009046454A1 (de) * 2009-11-06 2011-05-12 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Reinigen eines Waschtrockners und hierfür geeigneter Waschtrockner
CN106811917B (zh) * 2015-11-27 2019-01-11 无锡小天鹅通用电器有限公司 滚筒洗衣机的脱水方法
CN110965263B (zh) * 2018-09-29 2022-05-13 青岛海尔洗涤电器有限公司 一种洗衣机控制方法
JP7457697B2 (ja) * 2018-09-29 2024-03-28 青島海爾滾筒洗衣机有限公司 洗濯機の制御方法
CN110965262B (zh) * 2018-09-29 2022-05-24 青岛海尔洗涤电器有限公司 一种洗衣机控制方法

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RU2221094C1 (ru) 2004-01-10
KR100468918B1 (ko) 2005-02-02
KR20030090085A (ko) 2003-11-28
DE60215920T2 (de) 2007-09-13
DE60215920D1 (de) 2006-12-21
EP1365057A1 (de) 2003-11-26

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