EP2781640A1 - Machine à laver à tambour - Google Patents

Machine à laver à tambour Download PDF

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Publication number
EP2781640A1
EP2781640A1 EP12850049.3A EP12850049A EP2781640A1 EP 2781640 A1 EP2781640 A1 EP 2781640A1 EP 12850049 A EP12850049 A EP 12850049A EP 2781640 A1 EP2781640 A1 EP 2781640A1
Authority
EP
European Patent Office
Prior art keywords
water
circulation pump
circulation
motor
drum
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Withdrawn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
EP12850049.3A
Other languages
German (de)
English (en)
Other versions
EP2781640A4 (fr
Inventor
Tomoyuki Kikukawa
Katsuya Wakita
Wataru Uchiyama
Hiroto Nakama
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 EP2781640A1 publication Critical patent/EP2781640A1/fr
Publication of EP2781640A4 publication Critical patent/EP2781640A4/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Withdrawn legal-status Critical Current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 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/36—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of washing
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/44—Current or voltage
    • D06F2103/48—Current or voltage of the motor driving the pump
    • 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
    • D06F2105/06—Recirculation of washing liquids, e.g. by pumps or diverting valves
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/10—Power supply arrangements, e.g. stand-by circuits
    • 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

Definitions

  • the present invention relates to a drum-type washing machine which has means for circulating washing water.
  • the drum-type washing machine has the circulation pump as a driving source which sprays washing water on clothes in the water tub.
  • the circulation pump is arranged in a circulation path through which washing water circulates, and the circulation pump is operated while a water level detector maintains a predetermined water level.
  • a drum-type washing machine includes: a rotary drum which is formed in a bottomed cylindrical shape; a water tub which houses the rotary drum; a water circulation system which causes a circulation pump to circulate washing water in the water tub through a circulation path connected to the water tub; a water supply unit which supplies water into the rotary drum or the water tub; a motor which drives the rotary drum; a load detector which detects a load on the circulation pump; a controller which controls at least one of a washing step and a rinsing step. Further, the controller employs a configuration of, when the load detector detects a predetermined change in load of the circulation pump while the motor and the circulation pump are being driven, stopping driving the motor and stopping a function of the circulation pump.
  • the load detector detects the predetermined change in load of the circulation pump
  • the circulation pump is stopped and driving of the motor is stopped.
  • washing water includes washing water in a washing step and rinse water in a rinsing step.
  • FIG. 1 is a cross-sectional view illustrating a schematic structure of a drum-type according to a first exemplary embodiment of the present invention.
  • the drum-type washing machine has at least water tub 3 which is swingably disposed inside washing machine main body 2, rotary drum 4 which is rotatably disposed in water tub 3, motor 6 which is attached to an outer side of a back surface of water tub 3, water supply system 7, drainage system 8, dry system 9, and water circulation system 16.
  • Rotary drum 4 is driven to rotate by motor 6.
  • the drum-type washing machine according to the present exemplary embodiment configures a so-called drum-type washing machine which has a function of executing at least a washing step, a rinsing step, a dewatering step and a drying step by automatic control according to mode setting and a control program.
  • dry system 9 may be removed.
  • water supply system 7 adequately supplies water into water tub 3 as indicated by solid arrow A by opening and closing a water supply valve (not illustrated) configured by an electromagnetic valve.
  • a detergent in detergent accommodating unit 7a is configured to be adequately loaded in water tub 3 by using supplied water.
  • drainage system 8 discharges washing water by opening and closing drain valve 19 along a path indicated by dashed-dotted line arrow B when necessary such as upon an end of the washing step or upon the end of the rinsing step.
  • the washing water is discharged to an outside of the drum-type washing machine through drainpipe 8a connected to a lower part of water tub 3 and along a path which passes through drainage filter 8b.
  • drainage filter 8b captures lints and the like, and is configured to be detachable from an outside.
  • water circulation system 16 circulates the washing water in water tub 3 by driving circulation pump 20 and repeatedly returning the washing water to water tub 3 through the following path, in a washing preparing step, the washing step or the rinsing step, when necessary.
  • the path of water circulation system 16 is configured by drainpipe 8a connected to the lower part of water tub 3, drainage filter 8b, inflow side path 31a of circulation path 31 to circulation pump 20, circulation pump 20, and discharge side path 31b of circulation path 31 from circulation path 20.
  • operation panel 21 is provided on a front upper part side of washing machine main body 2, and selection of a mode such as an operation course and various functions is inputted to an input setting unit of operation panel 21.
  • controller 22 displays input information on a display unit on operation panel 21 based on the input information of operation panel 21 to notify to a user.
  • controller 22 receives an input of data from water level detector 40 which detects a water level in water tub 3 and starts driving the drum-type washing machine.
  • controller 22 controls operations of the drain valve 19 and the water supply valve, and executes washing by operations such as the washing step, the dewatering step, and the drying step.
  • rotary shaft 4a of rotary drum 4 is directly connected to a shaft of motor 6 provided in the back surface of water tub 3.
  • the user can easily put in and take out the laundry from rotary drum 4 without taking an unnatural posture such as squatting.
  • the inclined angle ⁇ by setting the inclined angle ⁇ to 20 ⁇ 10 degrees, it is possible to provide a state where a user who has a difference in height such as a child (except an infant) to a grown-up or a user of a wheelchair can most easily put in and take out the laundry.
  • water tub 3 is provided near and along rotary drum 4 while water tub 3 is inclined in the same way as rotary drum 4 in order to cause supplied water to efficiently work on the laundry in rotary drum 4.
  • open-close door 5 is provided to washing machine main body 2 so as to tightly seal opening 13 of water tub 3 via sealing member 14 attached to a rim of open-close door 5, and open opening 13 of water tub 3.
  • rotary drum 4 is driven in a forward and reverse arc rotary drive mode and in a forward and reverse continuous rotary drive mode upon a washing operation.
  • the forward and reverse arc rotary drive mode refers to a drive mode of alternately repeating rapid forward arc rotation of driving rotary drum 4 at 90 degrees or more and 180 degrees or less, and rapid reverse arc rotation.
  • the forward and reverse continuous rotary drive mode refers to a drive mode of alternately repeating forward and reverse continuous rotations of rotary drum 4 at a rotation speed at which the laundry lifted up by rotation of rotary drum 4 makes a behavior of dropping from a height at which the weight of the laundry overweighs.
  • the forward and reverse arc rotary drive mode and the forward and reverse continuous rotary drive mode of rotary drum 4 are alternately executed in the washing step or in the washing step and the rinsing step.
  • the laundry is lifted up at 90 degrees or more and 180 degrees or less at maximum due to arc rotation and rapid braking at a rapid speed at 90 degrees or more and 180 degrees or less of rotary drum 4.
  • a particularly high disentangling function unraveling function
  • the forward and reverse arc rotary drive mode of alternately repeating rapid forward arc rotation in a forward direction and rapid reverse arc rotation in a reverse direction of arc rotary drive it is possible to alternately switch the left and the right of a lift-up position and a drop position of the laundry by alternate forward and reverse rapid arc rotary drive per arc rotary drive. Consequently, it is possible to more effectively prevent the laundry from entangling, and further enhance the disentangling function. Further, it is possible to enhance the washing performance by increasing the number of times to apply the mechanical function such as dropping to the laundry.
  • Water circulation system 16 of the drum-type washing machine according to the present exemplary embodiment will be described below with reference to FIG. 1 , and Figs. 2A and 2B .
  • FIG. 2A is a cross-sectional view of the circulation pump of the drum-type washing machine according to the present exemplary embodiment.
  • FIG. 2B is a side view of the circulation pump of the drum-type washing machine according to the present exemplary embodiment.
  • circulation pump 20 is fixed and disposed on base plate 2a which is the bottom part of washing machine main body 2.
  • circulation pump 20 is configured by resin pump casing 20b which accommodates impeller 20a fitted to resin mounting seat 35, and metal motor casing 20d of circulation motor 20c.
  • an opening side of pump casing 20b is fitted to mounting seat 35 such that the opening side is in contact with and integrated with bearing partition wall 20d1 at a front end of motor casing 20d.
  • impeller 20a is directly connected to motor shaft 20e of circulation motor 20c.
  • circulation pump 20 is fixed to base plate 2a of washing machine main body 2 by, for example, bolts through mounting pieces 35a of attachment base 35.
  • discharge side path 31b of circulation path 31 connected to drainage connector 20g of circulation pump 20 is connected, from the outer surface side, to spray port 51 provided at the lowermost part of front end wall 3h around opening 13 of water tub 3 as illustrated in FIG. 1 .
  • washing water from discharge side path 31b is sprayed between the back surface of front end wall 3h of water tub 3 and the top surface of front end wall 4b of rotary drum 4 corresponding to front end wall 3h.
  • washing water is discharged in rotary drum 4 by circulation pump 20 through flow path 52 formed between the back surface of front end wall 3h of water tub 3 and the top surface of front end wall 4b of rotary drum 4.
  • inflow connector 20f of circulation pump 20 is connected to inflow side path 31a of circulation path 31, and the washing water in water tub 3 is poured in circulation pump 20 through drainpipe 8a provided at the lower part of water tub 3 by the driving of circulation pump 20.
  • Circulation pump 20 of water circulation system 16 configured as described above is controlled by controller 22 described below.
  • controller 22 controls circulation pump 20 by means of current detector 30 which is described below with reference to FIG. 3 , current detector 30 being a load detector which detects a change in load of circulation motor 20c.
  • a method of controlling circulation motor 20c of circulation pump 20 will be described below with reference to Figs. 3 and 4 .
  • FIG. 3 is a circuit diagram for explaining the load detector of the drum-type washing machine according to the first exemplary embodiment of the present invention.
  • FIG. 4 is a time chart illustrating an operation of the drum-type washing machine according to the first exemplary embodiment of the present invention.
  • controller 22 has current detector 30 that measures a change in load of circulation motor 20c of circulation pump 20 as a drive current value or a drive power amount of circulation motor 20c in at least the washing step.
  • current detector 30 that measures a change in load of circulation motor 20c of circulation pump 20 as a drive current value or a drive power amount of circulation motor 20c in at least the washing step.
  • a control method of controlling circulation motor 20c which is generally used in recent years as current detector 30 by way of inverter control is applied and used.
  • the drive current value of circulation motor 20c will be described below as an example of the change in load of circulation motor 20c.
  • value W of a load on circulation motor 20c measured by current detector 30 and value WO of an initial load on circulation motor 20c in the washing step are compared with each other to detect a change in load of circulation motor 20c.
  • a value obtained by calculating a time average when the number of rotations of circulation motor 20c is in a stationary state is preferably used as value WO of the initial load on circulation motor 20c.
  • the value is not limited to this, and only needs to enable detection of a change in load.
  • circulation motor 20c is driven by controller 22 which controls inverter circuit 27 based on signals from alternating-current power source 25, rectifier circuit 26, inverter circuit 27, and load detector 30.
  • Rectifier circuit 26 converts alternating-current power from alternating-current power source 25 into direct-current power.
  • rectifier circuit 26 is configured by full-wave rectifier circuit 28 and a direct-current voltage doubler circuit.
  • the direct-current voltage doubler circuit is configured by connecting capacitors 29a and 29b connected in series to a direct-current output terminal of full-wave rectifier circuit 28 and a connection point of capacitors 29a and 29b to one terminal of inputs of the alternating-current power source, and increases a voltage applied to inverter circuit 27.
  • Inverter circuit 27 drives circulation motor 20c by converting the direct-current power converted by rectifier circuit 26 into three-phase alternating-current powers.
  • the current detector which is load detector 30 is connected to a negative voltage side of inverter circuit 27, and detects currents flowing in lower arms of three phases of a U phase, a V phase, and a W phase of inverter circuit 27 by, for example, measuring voltages at both ends of a resistor. By this means, it is possible to detect an output current of inverter circuit 27, that is, a drive current value which is a phase current supplied to the U phase, the V phase, and the W phase of circulation motor 20c.
  • controller 22 controls driving and rotation of circulation motor 20c by computing the drive current value of inverter circuit 27 based on the output signal of current detector 30, and applying a predetermined frequency or a predetermined voltage matching the set number of rotations.
  • controller 22 controls driving and rotation of circulation motor 20c by computing the drive current value of inverter circuit 27 based on the output signal of current detector 30, and applying a predetermined frequency or a predetermined voltage matching the set number of rotations.
  • circulation motor 20c controls circulation motor 20c to provide a drive current phase or a reactive current with respect to the output voltage outputted to each phase of inverter circuit 27 according to the load on circulation motor 20c, it is possible to drive and rotate circulation motor 20c at a set synchronous speed (the set number of rotations).
  • controller 22 opens the electromagnetic valve of water supply system 7, and then water which is washing water is supplied into water tub 3.
  • controller 22 closes the electromagnetic valve, stops water supply and starts rotating rotary drum 4.
  • controller 22 drives circulation pump 20 while rotating rotary drum 4.
  • circulation pump 20 when circulation pump 20 is driven in a state where the amount of water in water tub 3 decreases and the water level lowers, circulation pump 20 is operated while the air mixes in circulation pump 20, that is, circulation pump 20 is driven in an air entrainment state.
  • predetermined threshold Wd is set to a load on circulation motor 20c detected by the load detector. Further, when the load on circulation motor 20c is smaller than predetermined threshold Wd and change in load A which is (WO - Wd) or more compared to value WO of the load on circulation motor 20c in the stationary state, it is determined that circulation pump 20 causes air entrainment.
  • controller 22 controls the number of rotations of circulation motor 20c to stop the function of circulation pump 20. More specifically, rotation of circulation motor 20c is stopped or circulation motor 20c is driven by lowering the number of rotations to such a degree that circulation pump 20 cannot function. Further, the function of circulation pump 20 is stopped to prevent in advance the water level in water tub 3 from lowering or prevent bubbles and air from mixing in circulation path 31 and entering circulation pump 20. Consequently, it is possible to prevent excessive bubbling caused upon breakup of bubbles and air mixing in circulation pump 20, and noise caused upon breakup.
  • controller 22 stops driving motor 6, and stops rotating rotary drum 4.
  • water level detector 40 detects the water level in water tub 3. Further, when water level detector 40 detects that the water level is the predetermined water level or more, driving of rotary drum 4 and circulation pump 20 is started again.
  • water level detector 40 detects that the water level is the predetermined water level or more
  • driving of rotary drum 4 and circulation pump 20 is started again.
  • lowering of the water level in water tub 3 is caused when rotary drum 4 is rotated or circulation pump 20 is driven, washing water in the clothes and water tub 3 is reflected to the water level while rotation of rotary drum 4 is stopped and driving of circulation pump 20 is stopped, and the water level in water tub 3 is recovered.
  • circulation pump 20 is driven again, the water level is recovered, so that bubbles and air are prevented from mixing in circulation path 31.
  • controller 22 determines that the laundry absorbs water and therefore the water level in water tub 3 lowers. Then, controller 22 opens the electromagnetic valve of water supply system 7, and supplies water to the predetermined water level in water tub 3 again. Subsequently, controller 22 drives motor 6, rotates rotary drum 4 and further drives circulation pump 20. As a result, it is possible to prevent excessive bubbling or noise of circulation pump 20, and execute the washing step without lowering the washing performance.
  • current detector 30 detects a predetermined change in load of circulation motor 20c of circulation pump 20, so that, during the operation of circulation pump 20, it is possible to detect at all times based on the change in load of circulation motor 20c that bubbles and air mix in circulation pump 20. As a result, it is possible to prevent excessive bubbling caused upon breakup of bubbles and air mixing in circulation pump 20, or noise caused upon breakup by stopping driving circulation pump 20.
  • a drum-type washing machine according to a second exemplary embodiment of the present invention will be described below with reference to FIG. 5 .
  • FIG. 5 is a time chart illustrating an operation of the drum-type washing machine according to the second exemplary embodiment of the present invention.
  • the drum-type washing machine according to the present exemplary embodiment differs from that of the first exemplary embodiment in stopping driving a motor and a function of a circulation pump, and detecting and controlling a water level by means of a water level detector after a predetermined time passes.
  • the other configurations and operations are the same as those of the first exemplary embodiment, and will be described by employing the components and the operations of the first exemplary embodiment. By this means, it is possible to prevent error detection.
  • the drum-type washing machine detects value W of a change in load of circulation motor 20c as a drive current value by means of load detector 30 while rotary drum 4 and circulation pump 20 are driven. Further, when a load of circulation motor 20c is smaller than predetermined threshold Wd and load detector 30 detects the change in load A which is (WO - Wd) or more compared to value WO of the load on circulation motor 20c in a stationary state, a function of circulation pump 20 is stopped, that is, the number of rotations of circulation pump 20 is lowered or circulation pump 20 is stopped.
  • controller 22 stops driving motor 6 and stops rotating rotary drum 4.
  • controller 22 detects a water level in water tub 3 by means of water level detector 40 after predetermined time t1 has passed, in order to avoid error detection of load detector 30.
  • the detected water level is a predetermined water level or less, it is determined that the amount of water absorbed by clothes is great depending on a material and thus the water level lowers, and therefore bubbles and air mix in circulation path 31.
  • controller 22 executes the washing step again after opening an electromagnetic valve of water supply system 7 and supplying water to a predetermined water level or supplying water for a predetermined time.
  • the water level of washing water is detected after circulation pump 20 is stopped and predetermined time t1 passes, so that it is possible to accurately detect the water level in water tub 3.
  • the circulation pump may be controlled in the rinsing step. By this means, it is possible to further enhance rinsing performance.
  • a load detector detects a change in load as a drive current value of a circulation motor
  • the present invention is not limited to this.
  • the load detector may detect and control a change in load such as a drive power amount or the number of rotations of the circulation motor. By this means, it is possible to provide the same effect.
  • the load detector detects three-phase drive current values of the circulation motor
  • the present invention is not limited to this.
  • the load detector may be configured to detect one-phase or two-phase drive current values of three-phases of the circulation motor. By this means, it is possible to simplify the configuration of the load detector.
  • a current sensor which is required for inverter drive may be configured to detect a drive current value. By this means, it is possible to achieve a low-cost and compact load detector.
  • a drum-type washing machine includes: a rotary drum which is formed in a bottomed cylindrical shape; a water tub which houses the rotary drum; a water circulation system which causes a circulation pump to circulate washing water in the water tub through a circulation path connected to the water tub; a water supply unit which supplies water into the rotary drum or the water tub; a motor which drives the rotary drum; a load detector which detects a load on the circulation pump; and a controller which controls at least one of a washing step and a rinsing step. Further, the controller is configured to, when the load detector detects a predetermined change in load of the circulation pump while the motor and the circulation pump are being driven, stop driving the motor and stop a function of the circulation pump.
  • the drum-type washing machine further has a water level detector which detects a water level of washing water, and the controller employs a configuration in which, when the water level detected by the water level detector is a predetermined water level or less after driving of the motor and a function of the circulation pump are stopped, the circulation pump is driven after the water supply unit supplies the additional amount of water.
  • the load detector of the drum-type washing machine employs a configuration of detecting a drive current value of the circulation motor of the circulation pump. According to this configuration, particularly when a circulation pump driven by an inverter is used, a current sensor which is required for inverter drive can configure the load detector. Consequently, it is possible to achieve a low-cost load detector.
  • the load detector of the drum-type washing machine is configured to detect a drive power amount of the circulation motor of the circulation pump. According to this configuration, it is possible to use and drive the circulation pump driven by inverter control according to a driving method such as constant power amount control. As a result, it is possible to easily detect a change in load by means of the load detector and enhance precision.
  • a drum-type washing machine according to the present invention is useful in a technical field of a drum-type washing machine which prevents lowering of an output of a circulation pump, and washes the laundry accommodated in a rotary drum with high washing performance.

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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)
EP12850049.3A 2011-11-14 2012-11-08 Machine à laver à tambour Withdrawn EP2781640A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011248318 2011-11-14
PCT/JP2012/007178 WO2013073140A1 (fr) 2011-11-14 2012-11-08 Machine à laver à tambour

Publications (2)

Publication Number Publication Date
EP2781640A1 true EP2781640A1 (fr) 2014-09-24
EP2781640A4 EP2781640A4 (fr) 2015-02-25

Family

ID=48429238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12850049.3A Withdrawn EP2781640A4 (fr) 2011-11-14 2012-11-08 Machine à laver à tambour

Country Status (4)

Country Link
EP (1) EP2781640A4 (fr)
JP (1) JPWO2013073140A1 (fr)
CN (1) CN103930609B (fr)
WO (1) WO2013073140A1 (fr)

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WO2018007149A1 (fr) * 2016-07-08 2018-01-11 BSH Hausgeräte GmbH Appareil d'entretien du linge équipé d'une commande
EP3214218A4 (fr) * 2014-10-27 2018-07-18 LG Electronics Inc. Appareil de traitement de linge et procédé de commande de celui-ci
WO2020009530A1 (fr) * 2018-07-06 2020-01-09 엘지전자 주식회사 Appareil de manipulation de linge
US10541607B2 (en) 2017-05-23 2020-01-21 Whirlpool Corporation Voltage doubling circuit for laundry treating appliance with high power variable frequency drive
US20210087734A1 (en) * 2018-02-22 2021-03-25 Lg Electronics Inc. Washing apparatus and method for controlling same
US20210277562A1 (en) * 2018-07-06 2021-09-09 Lg Electronics Inc. Drain pump driving apparatus and laundry treatment machine including the same
EP3783143A4 (fr) * 2018-04-19 2022-01-19 LG Electronics Inc. Dispositif d'entraînement de pompe de vidange et appareil de traitement de linge le comprenant
EP3819420A4 (fr) * 2018-07-06 2022-04-20 LG Electronics Inc. Appareil de manipulation de linge

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Publication number Priority date Publication date Assignee Title
KR101756408B1 (ko) * 2016-04-18 2017-07-11 엘지전자 주식회사 배수펌프 구동장치, 및 이를 구비한 세탁물 처리기기
CN110396801A (zh) * 2018-01-27 2019-11-01 张太平 一种防泡沫溢出洗衣机
WO2020130523A1 (fr) 2018-12-18 2020-06-25 삼성전자주식회사 Machine à laver

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JP5489328B2 (ja) * 2009-08-24 2014-05-14 株式会社東芝 ドラム式洗濯機
JP2011206140A (ja) * 2010-03-29 2011-10-20 Panasonic Corp ドラム式洗濯機
JP2011250848A (ja) * 2010-05-31 2011-12-15 Sharp Corp 洗濯機

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EP3214218A4 (fr) * 2014-10-27 2018-07-18 LG Electronics Inc. Appareil de traitement de linge et procédé de commande de celui-ci
WO2018007149A1 (fr) * 2016-07-08 2018-01-11 BSH Hausgeräte GmbH Appareil d'entretien du linge équipé d'une commande
RU2701256C1 (ru) * 2016-07-08 2019-09-25 Бсх Хаусгерете Гмбх Бытовой прибор для ухода за бельем с системой управления
WO2018007144A1 (fr) * 2016-07-08 2018-01-11 BSH Hausgeräte GmbH Appareil d'entretien du linge équipé d'une commande
US11578447B2 (en) 2017-05-23 2023-02-14 Whirlpool Corporation Voltage doubling circuit for laundry treating appliance with high power variable frequency drive
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US11753760B2 (en) 2017-05-23 2023-09-12 Whirlpool Corporation Voltage doubling circuit for laundry treating appliance with high power variable frequency drive
US11193227B2 (en) 2017-05-23 2021-12-07 Whirlpool Corporation Voltage doubling circuit for laundry treating appliance with high power variable frequency drive
US20210087734A1 (en) * 2018-02-22 2021-03-25 Lg Electronics Inc. Washing apparatus and method for controlling same
EP3783143A4 (fr) * 2018-04-19 2022-01-19 LG Electronics Inc. Dispositif d'entraînement de pompe de vidange et appareil de traitement de linge le comprenant
WO2020009530A1 (fr) * 2018-07-06 2020-01-09 엘지전자 주식회사 Appareil de manipulation de linge
EP3819420A4 (fr) * 2018-07-06 2022-04-20 LG Electronics Inc. Appareil de manipulation de linge
US20210277562A1 (en) * 2018-07-06 2021-09-09 Lg Electronics Inc. Drain pump driving apparatus and laundry treatment machine including the same
US11821127B2 (en) 2018-07-06 2023-11-21 Lg Electronics Inc. Laundry treatment machine
US11905637B2 (en) 2018-07-06 2024-02-20 Lg Electronics Inc. Laundry treatment machine
US11970807B2 (en) * 2018-07-06 2024-04-30 Lg Electronics Inc. Drain pump driving apparatus and laundry treatment machine including the same

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JPWO2013073140A1 (ja) 2015-04-02
EP2781640A4 (fr) 2015-02-25
CN103930609B (zh) 2016-01-06
WO2013073140A1 (fr) 2013-05-23
CN103930609A (zh) 2014-07-16

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