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WO2012089628A1 - A washing machine with self-cleaning feature - Google Patents

A washing machine with self-cleaning feature Download PDF

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Publication number
WO2012089628A1
WO2012089628A1 PCT/EP2011/073861 EP2011073861W WO2012089628A1 WO 2012089628 A1 WO2012089628 A1 WO 2012089628A1 EP 2011073861 W EP2011073861 W EP 2011073861W WO 2012089628 A1 WO2012089628 A1 WO 2012089628A1
Authority
WO
WIPO (PCT)
Prior art keywords
drum
load
self
cleaning program
water
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.)
Ceased
Application number
PCT/EP2011/073861
Other languages
French (fr)
Inventor
Engin Bayatli
Omer Dogan
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.)
Arcelik AS
Original Assignee
Arcelik AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Priority to CN201180068694.7A priority Critical patent/CN103380243B/en
Priority to EP11802951.1A priority patent/EP2659046A1/en
Priority to AU2011351584A priority patent/AU2011351584B2/en
Priority to RU2013135272/12A priority patent/RU2560352C2/en
Publication of WO2012089628A1 publication Critical patent/WO2012089628A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/008—Methods for washing, rinsing or spin-drying for disinfecting the tub or the drum
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • 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
    • 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
    • D06F2105/62—Stopping or disabling machine operation

Definitions

  • the present invention relates to a washing machine with self-cleaning feature.
  • the aim of the present invention is the realization of a washing machine wherein it is effectively detected if there is any load in the drum at the beginning of the self-cleaning program.
  • the washing machine realized in order to attain the aim of the present invention, explicated in the claims, comprises a control unit providing to detect if there is any load in the drum at the beginning of the self-cleaning program.
  • the control unit checks three conditions in order to determine if there is any load in the drum, and if the control unit receives data stating that there is no load, it starts the self-cleaning program, if not, it does not realize the self-cleaning program and warns the user.
  • the control unit controls if there is any load that has water-absorption feature in the drum, controls if there is any unbalanced load in the drum and controls if there is any balanced load in the drum. If load is detected in at least one control, the control unit stops the self-cleaning program. The said controls are realized in any order.
  • the washing machine of the present invention is operated by the control unit according to a method comprising the steps below: taking water in until the water level in the tub reaches the level that dampens the laundry without the laundry being saturated by opening the valve; measuring the pressure by the pressure sensor; rotating the drum by controlling the motor; measuring the pressure again by the pressure sensor after the drum is rotated; stopping the self-cleaning program after deciding that there is load in the drum if the second pressure value is lower than the first pressure value.
  • the washing machine of the present invention is operated by the control unit according to a method comprising the steps below: discharging the water, if there is any water in the tub; rotating the drum by means of the motor at a speed predetermined by the producer and recorded in the memory thereof, lower than the resonance speed; detecting the unbalanced load; stopping the self-cleaning program if the detected unbalanced load is bigger than the unbalanced load value predetermined by the producer and recorded in the memory thereof.
  • the washing machine of the present invention is operated by the control unit according to a method comprising the steps below: rotating the drum by means of the motor at least at a speed whereat the load is provided to stick onto the inner wall of the drum; stopping the motor; detecting the stopping time of the motor; stopping the self-cleaning program if the stopping time of the motor is lower than the stopping time predetermined by the producer and recorded in the memory thereof.
  • control unit firstly controls if there is any load that has water-absorption feature in the drum, secondly controls if there is any unbalanced load in the drum and thirdly controls if there is any balanced load in the drum, in that order. If load is detected at any stage, the self-cleaning program is stopped.
  • load is provided to be detected precisely and without error before the starting of the self-cleaning program.
  • the load in the drum is detected by the control unit, even if it is balanced or unbalanced, or it absorbs water or not.
  • Figure 1 – is the schematic view of a washing machine.
  • the washing machine (1) of the present invention that has self-cleaning feature comprises a drum (2) wherein the laundry to be washed is placed and a control unit (7) processing the self-cleaning program ( Figure 1).
  • control unit (7) checks three conditions in order to determine if there is any load in the drum (2), and if the control unit (7) receives data stating that there is no load in the whole, it starts the self-cleaning program, if not, it does not realize the self-cleaning program and warns the user.
  • control unit (7) controls if there is any load that has water-absorption feature in the drum (2), controls if there is any unbalanced load in the drum (2) and controls if there is any balanced load in the drum (2). If load is detected in at least one control, the self-cleaning program is stopped. The said controls are realized in any order.
  • the washing machine (1) furthermore comprises a tub (3) wherein the drum (2) is placed, a valve (4) providing water intake by opening/closing the water line, a pressure sensor (5) detecting the pressure applied by the water taken into the tub (3) and a motor (6) rotating the drum (2).
  • the washing machine (1) of the present invention is operated by the control unit (7) according to a method comprising the steps below:
  • the washing machine (1) of the present invention is operated by the control unit (7) according to a method comprising the steps below:
  • the washing machine (1) of the present invention is operated by the control unit (7) according to a method comprising the steps below:
  • control unit (7) firstly controls if there is any load that has water-absorption feature in the drum (2), secondly controls if there is any unbalanced load in the drum (2) and thirdly controls if there is any balanced load in the drum (2), in that order. If load is detected at any stage, the self-cleaning program is stopped.
  • the self-cleaning program when the self-cleaning program is started by the control unit (7), it is detected if there is load that has water-absorption feature in the drum (2), if there is unbalanced load and if there is balanced load; if load is detected, the self-cleaning program is stopped.

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

Abstract

In the washing machine (1) of the present invention, when the self-cleaning program is started by the control unit (7), it is detected if there is any load in the drum (2); if load is detected, the self-cleaning program is stopped.

Description

A WASHING MACHINE WITH SELF-CLEANING FEATURE
The present invention relates to a washing machine with self-cleaning feature.
In washing machines, special programs are used in order to clean the surfaces that the washing liquid contacts. These programs, called self-cleaning programs, have different conditions than other programs wherein laundry cleaning processes are realized. High water temperatures, sudden and variable drum movements, high drum rotation speeds, etc. are realized during self-cleaning programs. Thus, when the self-cleaning program is operated in the washing machine, there has to be no load in the drum, that is the drum has to be empty. If the self-cleaning program is realized in a drum with load therein, both the washing machine and the laundry in the drum are damaged. Some of the state of the art methods used for detecting if there is any load in the drum when the self-cleaning program is started by the user are described below.
In the state of the art European Patent Application No. EP 1 860 226 B1, a washing machine operated according to the self-cleaning program is described.
In the state of the art International Patent Application No. WO 2007/073012 A1, a washing machine operated according to the self-cleaning program is described.
The aim of the present invention is the realization of a washing machine wherein it is effectively detected if there is any load in the drum at the beginning of the self-cleaning program.
The washing machine realized in order to attain the aim of the present invention, explicated in the claims, comprises a control unit providing to detect if there is any load in the drum at the beginning of the self-cleaning program.
When the self-cleaning program is selected by the user, the control unit checks three conditions in order to determine if there is any load in the drum, and if the control unit receives data stating that there is no load, it starts the self-cleaning program, if not, it does not realize the self-cleaning program and warns the user.
The control unit controls if there is any load that has water-absorption feature in the drum, controls if there is any unbalanced load in the drum and controls if there is any balanced load in the drum. If load is detected in at least one control, the control unit stops the self-cleaning program. The said controls are realized in any order.
In order to control if there is any load that has water-absorption feature in the drum when the self-cleaning program is selected by the user, the washing machine of the present invention is operated by the control unit according to a method comprising the steps below: taking water in until the water level in the tub reaches the level that dampens the laundry without the laundry being saturated by opening the valve; measuring the pressure by the pressure sensor; rotating the drum by controlling the motor; measuring the pressure again by the pressure sensor after the drum is rotated; stopping the self-cleaning program after deciding that there is load in the drum if the second pressure value is lower than the first pressure value.
In order to control if there is any unbalanced load in the drum when the self-cleaning program is selected by the user, the washing machine of the present invention is operated by the control unit according to a method comprising the steps below: discharging the water, if there is any water in the tub; rotating the drum by means of the motor at a speed predetermined by the producer and recorded in the memory thereof, lower than the resonance speed; detecting the unbalanced load; stopping the self-cleaning program if the detected unbalanced load is bigger than the unbalanced load value predetermined by the producer and recorded in the memory thereof.
In order to control if there is any balanced load in the drum when the self-cleaning program is selected by the user, the washing machine of the present invention is operated by the control unit according to a method comprising the steps below: rotating the drum by means of the motor at least at a speed whereat the load is provided to stick onto the inner wall of the drum; stopping the motor; detecting the stopping time of the motor; stopping the self-cleaning program if the stopping time of the motor is lower than the stopping time predetermined by the producer and recorded in the memory thereof.
In an embodiment of the present invention, the control unit firstly controls if there is any load that has water-absorption feature in the drum, secondly controls if there is any unbalanced load in the drum and thirdly controls if there is any balanced load in the drum, in that order. If load is detected at any stage, the self-cleaning program is stopped.
By means of the present invention, load is provided to be detected precisely and without error before the starting of the self-cleaning program. The load in the drum is detected by the control unit, even if it is balanced or unbalanced, or it absorbs water or not.
A washing machine realized in order to attain the aim of the present invention is illustrated in the attached figure, where:
Figure 1 – is the schematic view of a washing machine.
The elements illustrated in the figures are numbered as follows:
  1. Washing machine
  2. Drum
  3. Tub
  4. Valve
  5. Pressure sensor
  6. Motor
  7. Control unit
The washing machine (1) of the present invention that has self-cleaning feature comprises a drum (2) wherein the laundry to be washed is placed and a control unit (7) processing the self-cleaning program (Figure 1).
When the self-cleaning program is selected by the user, the control unit (7) checks three conditions in order to determine if there is any load in the drum (2), and if the control unit (7) receives data stating that there is no load in the whole, it starts the self-cleaning program, if not, it does not realize the self-cleaning program and warns the user.
Before starting the self-cleaning program, the control unit (7) controls if there is any load that has water-absorption feature in the drum (2), controls if there is any unbalanced load in the drum (2) and controls if there is any balanced load in the drum (2). If load is detected in at least one control, the self-cleaning program is stopped. The said controls are realized in any order.
The washing machine (1) furthermore comprises a tub (3) wherein the drum (2) is placed, a valve (4) providing water intake by opening/closing the water line, a pressure sensor (5) detecting the pressure applied by the water taken into the tub (3) and a motor (6) rotating the drum (2).
In order to control if there is any load that has water-absorption feature in the drum (2) when the self-cleaning program is selected by the user, the washing machine (1) of the present invention is operated by the control unit (7) according to a method comprising the steps below:
  • taking water in until the water level in the tub (3) reaches the level that dampens the laundry without the laundry being fully saturated by opening the valve (4),
  • measuring the pressure (P1) by the pressure sensor (5);
  • rotating the drum (2) by controlling the motor (6);
  • measuring the pressure (P2) again by the pressure sensor (5) after the drum (2) is rotated,
  • stopping the self-cleaning program after deciding that there is load in the drum (2) if the second pressure value (P2) is lower than the first pressure value (P1).
In order to control if there is any unbalanced load in the drum (2) when the self-cleaning program is selected by the user, the washing machine (1) of the present invention is operated by the control unit (7) according to a method comprising the steps below:
  • discharging the water, if there is any water in the tub (3);
  • rotating the drum (2) by means of the motor (6) at a speed lower than the resonance speed value predetermined by the producer and recorded in the memory thereof;
  • detecting the unbalanced load (L1);
  • stopping the self-cleaning program if the detected unbalanced load (L1) is bigger than the unbalanced load value (L) predetermined by the producer and recorded in the memory thereof.
In order to control if there is any balanced load in the drum (2) when the self-cleaning program is selected by the user, the washing machine (1) of the present invention is operated by the control unit (7) according to a method comprising the steps below:
  • rotating the drum (2) by means of the motor (6) at least at a speed whereat the load is provided to stick onto the inner wall of the drum (2);
  • stopping the motor (6);
  • detecting the stopping time (t1) of the motor (6);
  • stopping the self-cleaning program if the stopping time (t1) of the motor (6) is lower than the stopping time (t) predetermined by the producer and recorded in the memory thereof.
In an embodiment of the present invention, the control unit (7) firstly controls if there is any load that has water-absorption feature in the drum (2), secondly controls if there is any unbalanced load in the drum (2) and thirdly controls if there is any balanced load in the drum (2), in that order. If load is detected at any stage, the self-cleaning program is stopped.
In the washing machine (1) of the present invention, when the self-cleaning program is started by the control unit (7), it is detected if there is load that has water-absorption feature in the drum (2), if there is unbalanced load and if there is balanced load; if load is detected, the self-cleaning program is stopped.
It is to be understood that the present invention is not limited to the embodiments disclosed above and a person skilled in the art can easily introduce different embodiments. These different embodiments should also be considered within the scope of the claims of the present invention.

Claims (6)

  1. A washing machine (1) having self-cleaning feature, comprising a drum (2) wherein the laundry to be washed is placed and a control unit (7) processing the self-cleaning program, characterized by the control unit (7) that detects if there is any load that has water-absorption feature in the drum (2), that detects if there is any unbalanced load in the drum (2), that detects if there is any balanced load in the drum (2) and if load is detected in at least one control, that stops the self-cleaning program.
  2. A washing machine (1) as in Claim 1, characterized by the control unit (7) that firstly controls if there is any load that has water-absorption feature in the drum (2), that secondly controls if there is any unbalanced load in the drum (2) and that finally controls if there is any balanced load in the drum (2), in that order; if any load is detected at any stage, that stops that self-cleaning program.
  3. A washing machine (1) as in Claim 1 or 2, characterized by a tub (3) wherein the drum (2) is placed, a valve (4) providing water intake by opening/closing the water line, a pressure sensor (5) detecting the pressure applied by the water taken into the tub (3) and a motor (6) rotating the drum (2).
  4. A control method that is operated by the control unit (7), in the washing machine (1) as in Claim 3, in order to control if there is any load that has water-absorption feature in the drum (2) when the self-cleaning program is selected by the user, that comprises the steps of:
    - taking water in until the water level in the tub (3) reaches the level that dampens the laundry without the laundry being fully saturated by opening the valve (4),
    - measuring the pressure (P1) by the pressure sensor (5);
    - rotating the drum (2) by controlling the motor (6);
    - measuring the pressure (P2) again by the pressure sensor (5) after the drum (2) is rotated,
    - stopping the self-cleaning program after deciding that there is load in the drum (2) if the second pressure value (P2) is lower than the first pressure value (P1).
  5. A control method that is operated by the control unit (7), in the washing machine (1) as in Claim 3, in order to control if there is any unbalanced load in the drum (2) when the self-cleaning program is selected by the user, that comprises the steps of:
    - discharging the water, if there is any water in the tub (3);
    - rotating the drum (2) by means of the motor (6) at a speed lower than the resonance speed value predetermined by the producer and recorded in the memory thereof;
    - detecting the unbalanced load (L1);
    - stopping the self-cleaning program if the detected unbalanced load (L1) is bigger than the unbalanced load value (L) predetermined by the producer and recorded in the memory thereof.
  6. A control method that is operated by the control unit (7), in the washing machine (1) as in Claim 3, in order to control if there is any balanced load in the drum (2) when the self-cleaning program is selected by the user, that comprises the steps of:
    - rotating the drum (2) by means of the motor (6) at least at a speed whereat the load is provided to stick onto the inner wall of the drum (2);
    - stopping the motor (6);
    - detecting the stopping time (t1) of the motor (6);
    - stopping the self-cleaning program if the stopping time (t1) of the motor (6) is lower than the stopping time (t) predetermined by the producer and recorded in the memory thereof.
PCT/EP2011/073861 2010-12-29 2011-12-22 A washing machine with self-cleaning feature Ceased WO2012089628A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201180068694.7A CN103380243B (en) 2010-12-29 2011-12-22 There is the washing machine of automatically cleaning characteristic
EP11802951.1A EP2659046A1 (en) 2010-12-29 2011-12-22 A washing machine with self-cleaning feature
AU2011351584A AU2011351584B2 (en) 2010-12-29 2011-12-22 A washing machine with self-cleaning feature
RU2013135272/12A RU2560352C2 (en) 2010-12-29 2011-12-22 Washing machines and self-cleaning function

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2010/11095 2010-12-29
TR201011095 2010-12-29

Publications (1)

Publication Number Publication Date
WO2012089628A1 true WO2012089628A1 (en) 2012-07-05

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Application Number Title Priority Date Filing Date
PCT/EP2011/073861 Ceased WO2012089628A1 (en) 2010-12-29 2011-12-22 A washing machine with self-cleaning feature

Country Status (5)

Country Link
EP (1) EP2659046A1 (en)
CN (1) CN103380243B (en)
AU (1) AU2011351584B2 (en)
RU (1) RU2560352C2 (en)
WO (1) WO2012089628A1 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
KR20160084210A (en) * 2015-01-05 2016-07-13 엘지전자 주식회사 Method for controlling washing machine
EP3290561A1 (en) * 2016-09-01 2018-03-07 LG Electronics Inc. Washing machine and method of controlling the same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105506923A (en) * 2014-09-24 2016-04-20 无锡小天鹅股份有限公司 Washing machine and imbalance detection method for same
CN112064291B (en) * 2019-05-23 2023-11-17 博西华电器（江苏）有限公司 Washing machine and control method thereof
CN110983720A (en) * 2019-12-19 2020-04-10 无锡飞翎电子有限公司 Control method and device of clothes treatment device and clothes treatment device

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JPH04218198A (en) * 1990-12-17 1992-08-07 Toshiba Corp Washer
WO2007073013A1 (en) * 2005-12-22 2007-06-28 Lg Electronics Inc. Method for cleaning a tub in a washing
WO2007073012A1 (en) 2005-12-22 2007-06-28 Lg Electronics Inc. Method for cleaning a tub in a washing machine
WO2008117506A1 (en) * 2007-03-22 2008-10-02 Kabushiki Kaisha Toshiba Washing machine
EP1860226B1 (en) 2006-05-23 2009-12-16 Miele & Cie. KG Method for operating a washing machine and washing machine
US20100139011A1 (en) * 2008-12-05 2010-06-10 Samsung Electronics Co., Ltd. Method of controlling washing machine
WO2011034332A2 (en) * 2009-09-15 2011-03-24 Lg Electronics Inc. Method for washing and washing machine

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JPH04218198A (en) * 1990-12-17 1992-08-07 Toshiba Corp Washer
WO2007073013A1 (en) * 2005-12-22 2007-06-28 Lg Electronics Inc. Method for cleaning a tub in a washing
WO2007073012A1 (en) 2005-12-22 2007-06-28 Lg Electronics Inc. Method for cleaning a tub in a washing machine
EP1860226B1 (en) 2006-05-23 2009-12-16 Miele & Cie. KG Method for operating a washing machine and washing machine
WO2008117506A1 (en) * 2007-03-22 2008-10-02 Kabushiki Kaisha Toshiba Washing machine
US20100139011A1 (en) * 2008-12-05 2010-06-10 Samsung Electronics Co., Ltd. Method of controlling washing machine
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Cited By (6)

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Publication number Priority date Publication date Assignee Title
KR20160084210A (en) * 2015-01-05 2016-07-13 엘지전자 주식회사 Method for controlling washing machine
WO2016111532A1 (en) * 2015-01-05 2016-07-14 Lg Electronics Inc. Washing machine
US9890494B2 (en) 2015-01-05 2018-02-13 Lg Electronics Inc. Washing machine controller
KR102284641B1 (en) 2015-01-05 2021-07-30 엘지전자 주식회사 Method for controlling washing machine
EP3290561A1 (en) * 2016-09-01 2018-03-07 LG Electronics Inc. Washing machine and method of controlling the same
US10450690B2 (en) 2016-09-01 2019-10-22 Lg Electronics Inc. Method of controlling washing machine

Also Published As

Publication number Publication date
RU2560352C2 (en) 2015-08-20
CN103380243B (en) 2016-11-09
AU2011351584B2 (en) 2016-10-06
EP2659046A1 (en) 2013-11-06
CN103380243A (en) 2013-10-30
AU2011351584A1 (en) 2013-07-18
RU2013135272A (en) 2015-02-10

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