EP2216438A1 - Machine à laver de type tambour - Google Patents

Machine à laver de type tambour Download PDF

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Publication number
EP2216438A1
EP2216438A1 EP10150045A EP10150045A EP2216438A1 EP 2216438 A1 EP2216438 A1 EP 2216438A1 EP 10150045 A EP10150045 A EP 10150045A EP 10150045 A EP10150045 A EP 10150045A EP 2216438 A1 EP2216438 A1 EP 2216438A1
Authority
EP
European Patent Office
Prior art keywords
water
washing
washing machine
temperature
leak
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.)
Withdrawn
Application number
EP10150045A
Other languages
German (de)
English (en)
Other versions
EP2216438A8 (fr
Inventor
Gou Itou
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.)
Panasonic Corp
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Publication of EP2216438A1 publication Critical patent/EP2216438A1/fr
Publication of EP2216438A8 publication Critical patent/EP2216438A8/fr
Withdrawn legal-status Critical Current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
    • 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 
    • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps 
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/081—Safety arrangements for preventing water damage
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/087—Water level measuring or regulating 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements
    • 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
    • D06F2105/58—Indications or alarms to the control system or to the user
    • D06F2105/60—Audible signals

Definitions

  • the present invention relates to a drum type washing machine.
  • Fig. 3 is a sectional view of a conventional washing machine disclosed in Japanese Patent Unexamined Publication No. H7-685 .
  • waterproof pan 101 has a drain port, and a drain hose of the washing machine is inserted into the drain port to discharge water.
  • Outer case 102 of the washing machine is a frame body of the washing machine including the surrounding of its internal mechanism.
  • Outer case 102 has opening 103 at its bottom, and communicates with the inside of waterproof pan 101 by way of opening 103.
  • outer case 102 incorporates tank 106 composed of outer tank 104 and inner tank 105.
  • Outer tank 104 is supported by plural sets (only one set is shown) of elastic suspension mechanisms 107.
  • the plural sets of elastic suspension mechanisms 107 individually have suspension rod 108 and spring 109.
  • Elastic suspension mechanisms 107 are designed to allow oscillation of tank 106, and allow descent depending on the weight of the content in tank 106.
  • Agitator 110 is disposed in the bottom of inner tank 105.
  • Inner tank 105 is attached to outer tank 104 by means of screws 113, with support plate 112 attached to a plurality of boss parts 111 in the outer lower part.
  • Motor 114, mechanical part 115, and water level detector 116 are attached to support plate 112. The signal from water level detector 116 is sent into control device 130.
  • control device 130 stops the operation (stops water discharge) based on the input signal from water level detector 116, thereby noticing abnormality.
  • waterproof pan 101 of the conventional washing machine for example, when the drum type washing machine is installed in parallel to the kitchen in built-in type (such as the kitchen in one-room apartment house), water cannot be collected, and the water level cannot be detected. Or when the washing machine is installed in a bath room, or the waterproof pan cannot be installed, water cannot be collected, and the water level cannot be detected.
  • the water leaking out from the washing machine may drop on the floor and soak the floor, possibly corroding the floor, and damages may be caused. If any other component for colleting water is used in place of the waterproof pan, when the water level (water leak) is detected, if discharge of water is stopped while water is contained in tank 106, water may leak out due to breakdown of tank 106, and water leak continues and finally flooding may occur.
  • the drum type washing machine of the present invention includes a rotary drum having a rotation center axis in the horizontal direction or a direction inclined from the horizontal direction, a water receiving tank elastically supported by the washing machine main body and rotatably incorporating the rotary drum, a motor for rotating and driving the rotary drum, a water feeding part for feeding washing water into the water receiving tank, a water level detector for detecting the water level of the washing water, a water discharging part for discharging the washing water, an input setting and display part for setting the strokes of washing, rinsing, and dewatering, a water leak detector for detecting water leak in the washing machine main body provided in the bottom plate in the lower part of the washing machine main body, and a control part for controlling the motor, the water feeding part, the water level detector, and the water discharging part based on the stroke setting determined by the input setting and display part, thereby executing the washing operation, in which the control part stops the washing operation and notices abnormality when water leak is detected by the water leak detector
  • the drum type washing machine having such configuration is capable of detecting water leak into the washing machine, preventing further spreading disaster by water leak, avoiding water leak to outside from the washing machine main body, and informing the user of occurrence of abnormality.
  • a drum type washing machine in a preferred embodiment of the present invention is specifically described below while referring to the accompanying drawings. It must be noted, however, that the present invention is not limited to the illustrated preferred embodiment alone.
  • Fig. 1 is a sectional view of a drum type washing machine in a preferred embodiment of the present invention.
  • rotary drum 1 is rotatably disposed in water receiving tank 2.
  • rotation shaft (rotation center shaft) 3 is disposed in a direction inclined from the horizontal direction.
  • Rotary drum 1 is disposed by inclining the axial center direction downward toward the back side from the front side.
  • Motor 4 attached to the back side of water receiving tank 2 is coupled to rotation shaft 3, and rotary drum 1 is rotated and driven in normal and reverse directions by means of motor 4.
  • lid body 5 An opening provided in an upward slope at the front side of water receiving tank 2 is covered with lid body 5 so as to be freely opened and closed.
  • lid body 5 By opening lid body 5, the laundry can be put in or out of rotary drum 1. Since lid body 5 is provided in the upward slope, when putting in or out the laundry, it is easy to handle without lowering the waist position.
  • Water receiving tank 2 is oscillatably suspended and supported from washing machine main body 6 by spring body 7 and damper 8. On the way of the drain passage from the bottom of water receiving tank 2, detachable lint filter 24 and water discharging part 9 are disposed, and the washing water from water receiving tank 2 is discharged. That is, lint filter 24 is installed from the bottom of water receiving tank 2 to water discharge part 9.
  • Water feeding part 10 supplies tap water as washing water into water receiving tank 2.
  • Water level detector 11 detects the water level of the washing water in water receiving tank 2.
  • rotation shaft 3 is installed in a direction inclined roughly from the center of rotation of rotary drum 1, and the axial center direction of rotary drum 1 disposed by inclining downward toward the back side from the front side.
  • rotation shaft 3 may be provided nearly in the horizontal direction of the center of rotation of rotary drum 1, and the axial center direction of rotary drum 1 may be disposed nearly in the horizontal direction.
  • control part 12 In the lower part of washing machine main body 6, control part 12 is provided, and in the upper front part of washing machine main body 6, input setting and display part 13 for setting a series of strokes from washing, rinsing, and dewatering is disposed.
  • Control part 12 controls the operation of motor 4, water discharging part 9, water feeding part 10, and water level detector 11 when operation is started based on the information from input setting and display part 13, and starts operation of washing, rinsing, and dewatering.
  • Water discharging part 9 for discharging the washing water may be realized, for example, by drain valve or the like, but a drain pump may be used. Or both may be used, and they may be combined depending on the environment of use of the washing machine.
  • the lower bottom plate of washing machine main body 6 is provided with water leak detector 14 disposed at a position appropriate for detecting water leak.
  • Water leak detector 14 detects water leak inside of washing machine main body 6.
  • Water leak detector 14 is composed of, for example, two electrodes, and water leak is detected by a potential difference between these electrodes. That is, if leaking water deposits between the electrodes, the potential difference is eliminated, and water leak is detected.
  • Fig. 2 is a block circuit diagram of part of the drum type washing machine in the preferred embodiment of the present invention.
  • Control circuit 15 is composed of control part 12 formed of a microcomputer, input circuit 16, motor drive circuit 17, and switching part drive circuit 18.
  • Control part 12 sends out various display signal to input setting and display part 13, and also controls the rotation of motor 4 by way of motor drive circuit 17. That is, based on the stroke setting determined by input setting and display part 13, control part 12 controls motor 4, water feeding part 10, water level detector 11, and water discharging part 9, and carries out the washing operation.
  • Control circuit 15 controls switching part 19 by way of switching part drive circuit 18, and controls the operations of water feeding part 10, water discharging part 9, and lid lock device 20.
  • Lid lock device 20 prohibits opening and closing of lid body 5 for covering the opening as the laundry inlet provided in water receiving tank 2 during operation.
  • Lid lock device 20 is composed of a solenoid and a lever.
  • Control part 12 receives various operation signals from input setting and display part 13, and also receives detection signals from water level detector 11 and water leak detector 14 by way of input circuit 16, and detection signals showing the detached or attached state of lint filter 24.
  • Control part 12 sets an appropriate water level depending on the weight of the laundry, and controls water feeding part 10, and water is supplied into rotary drum 1 and water receiving tank 2.
  • the water level is detected by water level detector 11, and when reaching a predetermined water level, water feeding is stopped, and motor 4 is controlled, and rotary drum 1 is put into rotation, and the washing stroke is started.
  • water discharging part 9 is controlled, and the washing water is discharged. At this time, the washing water passes through lint filter 24, and lint is captured. This operation is the same during rinsing stroke or in water discharge process before the dewatering stroke.
  • water feeding part 10 is controlled again, and water is supplied into rotary drum 11 and water receiving tank 2.
  • the water level is detected by water level detector 11, and when reaching a predetermined water level, supply of water is stopped, and motor 4 is controlled, and rotary drum 1 is put into rotation, and the rinsing stroke is started. After finishing the rinsing stroke, water discharging part 9 is controlled, and the water after rinsing is discharged, and a dewatering stroke is executed finally, and the operation is finished.
  • Control part 12 continues to monitor input signals from water leak detector 14 all the time from start of operation until the operation is terminated and the power source is turned off, including the initial waiting time right after the power switch is turned on. For example, water escaping from cracks or breakage in water receiving tank 2 and water feeding part 10, or water leaking from cracks in the pressure hose with water feed valve may drop into the bottom plate, flow into the portion of throttling shape 21 provided in the bottom plate, and gather in the location of water leak detector 14.
  • the pressure hose with water feed valve has a double structure, having a water feeding hose in the inside, and a wiring for controlling the water feed valve attached to the faucet side communicating between the water feeding hose and he outside covering. Accordingly, if the water feeding hose is cracked, the leaking water runs through the outside covering, and flows into the washing machine.
  • Control part 12 immediately stops water feeding and rotation of rotary drum 1 when receiving a detection signal of water leak state, and notices abnormality after discharging water.
  • the abnormality is noticed by emitting an alarm sound from a sound generating device or the like, so that the user is informed of the occurrence of abnormality.
  • the location of water leak detector 14 is not limited to the bottom plate, and an appropriate position may be selected depending on the state of each product.
  • the input signal from water leak detector 14 may not be always monitored, but the input signal may be monitored at an appropriate timing as far as water leak can be detected securely.
  • Throttling plate 21 of the bottom plate may be formed in an appropriate shape so that the water may be collected at an intended place depending on the state of each product. If necessary, not limited to the bottom plate, a guide shape throttle may be provided at the side face or the like so that the water may flow in easily.
  • water leak detector 14 for detecting water leak into the main body is disposed in the bottom plate of the washing machine, and when water leak detector 14 detects water leak, control part 12 immediately stops the operation (water feeding and drum rotation). Consequently, the water in water receiving tank 2 is discharged, and abnormality is detected, and any water leak into the washing machine can be detected, and water can be discharged. Accordingly, further spread of disaster by water leak can be prevented, and without allowing water leak to outside from washing machine main body 6, the user may be safely informed of occurrence of abnormality.
  • heater 22 is provided for heating the washing water supplied into water receiving tank 2, and control part 12 is controlling the operation of heater 22.
  • temperature detector 23 is provided for detecting the temperature of the heated washing water, and the detected signal is fed into control part 12 by way of input circuit 16.
  • Control part 12 controls water feeding part 10, and water is supplied into rotary drum 1 and water receiving tank 2. Consequently, control part 12 detects water level by water level detector 11, and supply of water is stopped when reaching a predetermined water level. Further, control part 12 controls motor 4, rotates rotary drum 1, and executes the washing stroke.
  • control part 12 controls heating part 22 so as to reach the preset water temperature depending on the detection signal from temperature detector 23.
  • heating part 22 that is, during the washing stroke by warm water, if water leak is detected by water leak detector 14, the washing operation is stopped immediately, and water feeding and agitation operation is started, and the washing water is cooled to less than a specified temperature, and thereby the water is discharged.
  • the water temperature of washing water may be judged according to appropriate conditions so as to be less than a specified temperature.
  • heating part 22 that is, during washing stroke by using high-temperature water, when water leak is detected by water leak detector 14, if motor 4 is defective, water feeding part 10 is controlled, and water is supplied into water receiving tank 2, and by water feeding operation, the high-temperature water and clothes are cooled. That is, by the detection signal from temperature detector 23, when the temperature of the washing water becomes lower than a specified temperature, the washing water in water receiving tank 2 is discharged, and the lid lock is released, and the abnormality is noticed.
  • heating part 22 that is, during washing stroke by using high-temperature water
  • water leak detector 14 if water discharging part 9 is defective, motor 4 and water feeding part 10 are controlled, and water is supplied into water receiving tank 2, and water receiving tank 2 is agitated. That is, by water feeding operation and agitating operation, the high-temperature water and clothes are cooled, and by the detection signal from temperature detector 23, when the temperature of the washing water becomes lower than a specified temperature, lid lock 20 is released, and the abnormality is noticed.
  • heating part 22 that is, during washing stroke by using high-temperature water
  • motor 4 and water feeding part 10 are controlled, and water is supplied into water receiving tank 2, and water receiving tank 2 is agitated.
  • water feeding operation and agitating operation By water feeding operation and agitating operation, the high-temperature water and clothes are cooled.
  • the temperature of the washing water becomes lower than a specified temperature and the water in water receiving tank 2 is discharged
  • detachable lint filter 24 has been detached
  • the washing operation of the drum type washing machine is stopped, and the abnormality is noticed.
  • motor 4 and water feeding part 10 are controlled, and water supply and agitation are started.
  • lid lock 20 is released, and the abnormality is noticed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP10150045A 2009-02-02 2010-01-04 Machine à laver de type tambour Withdrawn EP2216438A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009021180A JP2010172640A (ja) 2009-02-02 2009-02-02 ドラム式洗濯機

Publications (2)

Publication Number Publication Date
EP2216438A1 true EP2216438A1 (fr) 2010-08-11
EP2216438A8 EP2216438A8 (fr) 2011-03-30

Family

ID=42199750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10150045A Withdrawn EP2216438A1 (fr) 2009-02-02 2010-01-04 Machine à laver de type tambour

Country Status (4)

Country Link
EP (1) EP2216438A1 (fr)
JP (1) JP2010172640A (fr)
CN (1) CN101792962B (fr)
RU (1) RU2416683C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3376339A4 (fr) * 2015-11-11 2018-12-05 Exascaler Inc. Système de refroidissement de dispositif électronique
EP3376338A4 (fr) * 2015-11-11 2018-12-05 Exascaler Inc. Système de refroidissement de dispositif électronique
JP2021517476A (ja) * 2018-02-12 2021-07-26 青島海爾洗衣机有限公司ＱｉｎｇＤａｏ Ｈａｉｅｒ Ｗａｓｈｉｎｇ Ｍａｃｈｉｎｅ Ｃｏ．，Ｌｔｄ． 洗濯機の制御方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102154802A (zh) * 2011-04-14 2011-08-17 合肥荣事达三洋电器股份有限公司 一种洗衣机变容洗控制电路及其控制方法
CN107447438B (zh) * 2017-09-27 2020-04-07 南京创维电器研究院有限公司 一种自清洁洗衣机及其控制方法
CN110144697B (zh) * 2018-02-12 2023-03-14 青岛海尔洗衣机有限公司 一种洗衣机的排水控制方法
CN108716083A (zh) * 2018-05-04 2018-10-30 佛山市顺德区美的洗涤电器制造有限公司 洗涤电器的水检测方法和洗涤电器
CN108755003B (zh) * 2018-05-28 2023-08-22 重庆海尔洗衣机有限公司 一种洗衣机及溢水检测方法
CN112538718B (zh) * 2019-09-23 2024-07-16 青岛海尔洗衣机有限公司 一种洗衣机的控制方法及洗衣机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156389A (en) * 1984-03-23 1985-10-09 Bosch Siemens Hausgeraete Water supply control in a household appliance
GB2166645A (en) 1984-11-07 1986-05-14 Bosch Siemens Hausgeraete Water inflow control in an appliance operable with water
EP1213384A2 (fr) * 2000-12-05 2002-06-12 Kabushiki Kaisha Toshiba Machine à laver automatique
EP1350881A1 (fr) * 2002-04-02 2003-10-08 Whirlpool Corporation Procédé pour commander le programme d'une machine à laver et machine à laver utilisant un tel procédé
EP1666654A2 (fr) * 2004-11-18 2006-06-07 Indesit Company S.p.A. Machine à laver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156389A (en) * 1984-03-23 1985-10-09 Bosch Siemens Hausgeraete Water supply control in a household appliance
GB2166645A (en) 1984-11-07 1986-05-14 Bosch Siemens Hausgeraete Water inflow control in an appliance operable with water
EP1213384A2 (fr) * 2000-12-05 2002-06-12 Kabushiki Kaisha Toshiba Machine à laver automatique
EP1350881A1 (fr) * 2002-04-02 2003-10-08 Whirlpool Corporation Procédé pour commander le programme d'une machine à laver et machine à laver utilisant un tel procédé
EP1666654A2 (fr) * 2004-11-18 2006-06-07 Indesit Company S.p.A. Machine à laver

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3376339A4 (fr) * 2015-11-11 2018-12-05 Exascaler Inc. Système de refroidissement de dispositif électronique
EP3376338A4 (fr) * 2015-11-11 2018-12-05 Exascaler Inc. Système de refroidissement de dispositif électronique
US20180356866A1 (en) * 2015-11-11 2018-12-13 Exascaler Inc. Electronic device cooling system
US20180363994A1 (en) * 2015-11-11 2018-12-20 Exa Scaler Inc, Cooling system for electronic device
JP2021517476A (ja) * 2018-02-12 2021-07-26 青島海爾洗衣机有限公司ＱｉｎｇＤａｏ Ｈａｉｅｒ Ｗａｓｈｉｎｇ Ｍａｃｈｉｎｅ Ｃｏ．，Ｌｔｄ． 洗濯機の制御方法

Also Published As

Publication number Publication date
CN101792962A (zh) 2010-08-04
JP2010172640A (ja) 2010-08-12
RU2416683C1 (ru) 2011-04-20
EP2216438A8 (fr) 2011-03-30
CN101792962B (zh) 2011-11-02

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