US20040244433A1 - Wash water-circulating apparatus for washing machines and method of controlling the same - Google Patents

Wash water-circulating apparatus for washing machines and method of controlling the same Download PDF

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Publication number
US20040244433A1
US20040244433A1 US10/828,259 US82825904A US2004244433A1 US 20040244433 A1 US20040244433 A1 US 20040244433A1 US 82825904 A US82825904 A US 82825904A US 2004244433 A1 US2004244433 A1 US 2004244433A1
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United States
Prior art keywords
wash water
tub
pump
water
circulation channel
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.)
Abandoned
Application number
US10/828,259
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English (en)
Inventor
Tae Lee
Sang Hong
Byung Choi
Hyun Seo
Si Jeon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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
Priority claimed from KR10-2003-0026410A external-priority patent/KR100517619B1/ko
Priority claimed from KR10-2003-0028200A external-priority patent/KR100505255B1/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Assigned to LG ELECTRONICS INC. reassignment LG ELECTRONICS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LEE, TAE HEE, CHOI, BYUNG KEOL, HONG, SANG WOOK, JEON, SI MOON, SEO, HYUN SEOK
Publication of US20040244433A1 publication Critical patent/US20040244433A1/en
Abandoned legal-status Critical Current

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    • 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
    • D06F39/083—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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/52—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/62—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the present invention relates to a washing machine, including a drum washing machine, and more particularly to a wash water-circulating apparatus for washing machines, which is capable of circulating/spraying wash water in a tub so that washing and rinsing operations are carried out.
  • the present invention also relates to a method of controlling such a wash water-circulating apparatus for washing machines.
  • FIG. 1 is a perspective view of a conventional washing machine, especially a conventional drum washing machine.
  • the conventional drum washing machine comprises: a casing 2 forming the exterior of the drum washing machine; a tub 6 disposed in the casing 2 in such a manner that the upper end of the tub 6 is suspended by means of a spring 4 , and simultaneously the lower end of the tub 6 is supported by means of a damper assembly (not shown); a drum 8 rotatably mounted in the tub 6 for washing, rinsing and drying clothes; a motor 10 mounted at the rear of the tub 6 , in such a manner that the motor 10 is connected to the drum 8 , for rotating the drum 8 ; a heater 12 mounted to the lower part of the tub 6 for heating wash water; and a pump assembly 20 including a pump connected to the lower part of the tub 6 by means of a drainage bellows 14 for pumping wash water so that the wash water is circulated or draining the wash water to the outside.
  • the heater 12 is disposed between the tub 6 and the drum 8 .
  • the tub 6 includes a heater mounting part 6 a formed at the lower end thereof.
  • the heater mounting part 6 a of the tub 6 is downwardly extended from the tub 6 so that the heater 12 is mounted in the heater mounting part 6 a.
  • a water-supply valve assembly 16 for supplying wash water into the tub 6 and a detergent box assembly 18 for supplying a detergent into the tub 6 .
  • a water level sensor for detecting the water pressure of the wash water flowing to the pump assembly 20 , whereby the water level of the wash water in the tub 6 is detected.
  • a circulation channel 24 for circulating the wash water to the tub To the pump assembly 20 is connected a circulation channel 24 for circulating the wash water to the tub. To the pump assembly 20 is also connected a drainage channel 26 for draining the wash water.
  • the circulation channel 24 has one end connected to the pump assembly 20 and the other end disposed in a gasket 7 , which is mounted between the tub 6 and the casing 2 for preventing leakage of the wash water. Specifically, the other end of the circulation channel 24 is disposed in the inner upper part of the gasket 7 so that the wash water is sprayed to the upper part of the tub 6 .
  • wash water is supplied.
  • the water level of the wash water in the tub 6 is gradually increased throughout the tub 6 .
  • the motor 10 is operated, the drum 8 is rotated in the forward/reverse direction so that the clothes in the drum 8 are moved so that the clothes become wet. Consequently, the water level of the wash water is repeatedly increased/decreased.
  • the motor 10 is operated so that the drum 8 is rotated. Consequently, a washing process is carried out.
  • the pump is operated so that the wash water at the lower part of the tub 6 is sprayed to the upper part of the tub 6 . In this way, the washing operation is carried out.
  • the water level sensor 22 is disposed on the inlet channel of the pump, the water level of the wash water in the tub is not exactly detected when the wash water re-circulation washing process is carried out since the moved amount of the wash water is increased. Consequently, it is required that an excessive amount of wash water be supplied so that the heater 12 is always operated while being submerged under the wash water. Even when the rinsing process, which requires no operation of the heater, is carried out, it is required that the appropriate water level of the wash water be maintained so that the pump is normally operated. As a result, it is required that an excessive amount of the wash water be supplied considering the flow of the wash water.
  • the washing process is carried out while more wash water is supplied to the tub than is necessary so that the heater 12 and the pump are normally operated with the result that the consumed amount of the wash water is increased, and the consumed amount of electric energy is also increased.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a wash water-circulating apparatus for washing machines, wherein a water level sensor is disposed at the outlet port of a pump to exactly determine whether the pump is normally operated or not, whereby the reliability of a wash water re-circulation washing process is improved.
  • a wash water-circulating apparatus for washing machines comprising: a circulation channel connected between one side of a tub and the other side of the tub for allowing wash water to circulate therethrough; a pump assembly disposed on the circulation channel for forcibly circulating the wash water; and a water level sensor disposed at the pump assembly or on the circulation channel downstream of the pump assembly for measuring the water pressure of the wash water discharged from the pump assembly.
  • the apparatus further comprises a heater assembly disposed on the circulation channel downstream of the pump assembly for heating the circulated wash water.
  • the water level sensor is mounted on the circulation channel between the pump assembly and the heater assembly, at the heater assembly, or on the circulation channel downstream of the heater assembly.
  • the apparatus further comprises a drainage channel connected to the pump assembly for discharging the wash water in the tub to the outside, wherein the wash water is selectively pumped to the circulation channel or to the drainage channel by means of the pump assembly.
  • the circulation channel has a wash water-spraying end disposed at the lower part of the tub or at the upper part of the tub so that the wash water is sprayed into the tub through the wash water-spraying end.
  • a washing machine comprising: a tub for storing wash water; a circulation channel connected between one side of the tub and the other side of the tub for allowing the wash water to circulate into the tub therethrough so that the wash water is sprayed into the tub; a pump assembly disposed on the circulation channel for forcibly circulating the wash water; a water level sensor for measuring the water pressure of the wash water discharged from the pump assembly; and control means for controlling supply of the wash water into the tub and operation of the pump assembly on the basis of the signal from the water level sensor.
  • the machine further comprises a drainage channel connected to the pump assembly for discharging the wash water in the tub to the outside, wherein the wash water is selectively pumped to the circulation channel or to the drainage channel by means of the pump assembly.
  • the machine may be a drum washing machine with the tub disposed approximately horizontally or an upright washing machine with the tub disposed approximately vertically.
  • a method of controlling wash water circulation for washing machines comprising the steps of: re-circulating wash water supplied into a tub along a circulation channel by operating a pump; and measuring the discharging pressure of the pump while the wash water is re-circulated, and further supplying water into the tub if the discharging pressure of the pump is less than a prescribed pressure.
  • the pump is stopped for a prescribed period of time when the water is further supplied into the tub.
  • the pump is periodically stopped/operated when the water is further supplied into the tub.
  • the pump-stopping time is shorter than the pump-operating time.
  • the method further comprises the steps of measuring the discharging pressure of the pump after the water is further supplied, and stopping supply of water if the discharging pressure of the pump is not less than a prescribed pressure.
  • the wash water is further supplied into the tub, and simultaneously the pump is repeatedly stopped for a prescribed time while the pump is operated so that air introduced into the pump is discharged, whereby the operational reliability of the pump is improved.
  • FIG. 1 is a side view, in cross section, of a conventional drum washing machine
  • FIG. 2 is a graph illustrating a water level based on water-supplying time and a pump operating condition of the conventional drum washing machine
  • FIG. 3 is a side view, in cross section, of a drum washing machine provided with a wash water-circulating apparatus according to a first preferred embodiment of the present invention
  • FIG. 4 is a side view, in cross section, of a drum washing machine provided with a wash water-circulating apparatus according to a second preferred embodiment of the present invention
  • FIG. 5 is a side view, in cross section, of a drum washing machine provided with a wash water-circulating apparatus according to a third preferred embodiment of the present invention.
  • FIG. 6 is a side view, in cross section, of a drum washing machine provided with a wash water-circulating apparatus according to a fourth preferred embodiment of the present invention.
  • FIG. 7 is a side view, in cross section, of a drum washing machine provided with a wash water-circulating apparatus according to a fifth preferred embodiment of the present invention.
  • FIG. 8 is a flow chart illustrating a method of controlling a drum washing machine provided with a wash water-circulating apparatus according to the present invention.
  • FIG. 9 is a graph illustrating a water level based on water-supplying time and a pump operating condition of a drum washing machine provided with a wash water-circulating apparatus according to the present invention.
  • FIG. 3 is a side view, in cross section, of a drum washing machine provided with a wash water-circulating apparatus according to a first preferred embodiment of the present invention.
  • the drum washing machine comprises: a casing 52 forming the exterior of the drum washing machine; a tub 56 disposed in the casing 52 in such a manner that the upper end of the tub 56 is suspended by means of a spring 54 , and simultaneously the lower end of the tub 56 is elastically supported by means of a damper assembly (not shown); a drum 58 rotatably mounted in the tub 56 for washing, rinsing and drying clothes; a motor 60 mounted at the rear of the tub 56 , in such a manner that the motor 60 is connected to the drum 58 , for rotating the drum 58 ; a heater 62 mounted to the lower part of the tub 56 for heating wash water; and a pump assembly 70 including a pump connected to the lower part of the tub 56 by means of a drainage bellows 64 for pumping or draining the wash water; a circulation channel 74 having one end connected to the pump assembly 70 and the other end disposed in the tub 56 for spraying the wash water;
  • a water-supply valve assembly 66 including a water-supply valve (not shown) for supplying wash water into the tub 56 and a detergent box assembly 68 for supplying a detergent into the tub 56 .
  • the heater 62 is disposed in a heater mounting part 56 a formed at the lower part of the tub 56 .
  • the heater mounting part 56 a of the tub 56 is downwardly extended from the tub 56 so that the heater 62 is mounted in the heater mounting part 56 a.
  • the circulation channel 74 is connected to the pump assembly 70 for pumping the wash water from the tub 56 .
  • a drainage channel 76 for draining the wash water from the tub 56 .
  • One end 74 a of the circulation channel 74 is connected to the pump assembly 70 , and the other end 74 b of the circulation channel 74 is disposed in a gasket 57 , which is mounted between the front end of the tub 56 and the casing 52 for preventing leakage of the wash water.
  • the end 74 b of the circulation channel 74 is formed in the shape of a nozzle for spraying the wash water.
  • the water level sensor 72 is disposed on the circulation channel 74 downstream of the pump assembly 70 for measuring the water pressure of the wash water having passed through the pump. Consequently, it can be determined whether the pump is normally operated, and therefore the water level can be controlled more accurately.
  • the pump When it is detected that the water pressure is lower than a prescribed pressure as air is introduced into the pump along with the wash water, the pump is not normally operated. Consequently, the water level sensor 72 determines that the appropriate amount of wash water is not supplied into the tub 56 . When it is detected that the water pressure is higher than the prescribed pressure as only the wash water is introduced into the pump, the pump is normally operated. Consequently, the water level sensor 72 determines that the appropriate amount of wash water is supplied into the tub 56 , and controls the operation of the water-supply valve.
  • FIG. 4 is a side view, in cross section, of a drum washing machine provided with a wash water-circulating apparatus according to a second preferred embodiment of the present invention.
  • the drum washing machine provided with the wash water-circulating apparatus according to the second preferred embodiment of the present invention is similar to the drum washing machine provided with the wash water-circulating apparatus according to the first preferred embodiment of the present invention except that the water level sensor 72 is disposed at one side of the pump assembly to detect the water pressure of the wash water discharged from the pump.
  • the pump assembly 70 includes a pump case having an inlet port, through which the wash water is introduced, and an outlet port, through which the wash water is discharged.
  • the pump is mounted in the pump case.
  • the water level sensor 72 is mounted to one side of the pump case in such a manner that the water level sensor 72 communicates with the pump case.
  • the water level sensor 72 determines whether the pump is operated or not and the water level of the wash water in the tub 56 by measurement of the water pressure of the wash water passing through the pump assembly 70 .
  • FIG. 5 is a side view, in cross section, of a drum washing machine provided with a wash water-circulating apparatus according to a third preferred embodiment of the present invention.
  • the drum washing machine comprises: a casing 82 forming the exterior of the drum washing machine; a tub 86 disposed in the casing 82 in such a manner that the upper end of the tub 86 is suspended by means of a spring 84 , and simultaneously the lower end of the tub 86 is elastically supported by means of a damper assembly (not shown); a drum 88 rotatably mounted in the tub 86 for washing, rinsing and drying clothes; a motor 90 mounted at the rear of the tub 86 , in such a manner that the motor 90 is connected to the drum 88 , for rotating the drum 88 ; a pump assembly 100 including a pump connected to the lower part of the tub 86 by means of a drainage bellows 94 for pumping or draining wash water; a circulation channel 104 having one end connected to the pump assembly 100 and the other end disposed in the tub 86 for spraying wash water pumped by means of the pump assembly 100 so
  • the heater assembly 92 includes a heater case having an inlet port, through which the wash water is introduced, and an outlet port, through which the wash water is discharged.
  • a heater case having an inlet port, through which the wash water is introduced, and an outlet port, through which the wash water is discharged.
  • the heater case is mounted an electric heater. As the pump is operated, the wash water passes through the heater assembly 92 , by which the wash water is heated.
  • the circulation channel 104 is connected to the pump assembly 100 for pumping the wash water from the tub 86 .
  • a drainage channel 106 for draining the wash water from the tub 86 .
  • One end 104 a of the circulation channel 104 is connected to the pump assembly 100 and the heater assembly 92 , which are disposed below the tub 86 , and the other end 104 b of the circulation channel 104 is disposed in the inner lower part of the tub 86 in such a manner that the other end 104 b of the circulation channel 104 is extended upward. Consequently, the circulation channel 104 is relatively shortened, whereby the flow loss is reduced, and the consumed amount of wash water is decreased.
  • the water level sensor 102 is disposed on the circulation channel 104 downstream of the heater assembly 92 for measuring the water pressure of wash water discharged from the pump assembly in the case that the pump is operated when water is supplied. Consequently, it is determined whether the pump is normally operated or not, and therefore the water level of the wash water in the tub 86 is detected.
  • the water level of the wash water in the tub 86 which is detected by means of the water level sensor 102 , is the minimum water level at which the pump can be operated.
  • the water level sensor 102 detects the water level of water at which the pump can be operated, and stops the operation of the water-supply valve. Consequently, the consumed amount of the wash water is decreased, and the consumed amount of electric energy necessary for operations of the pump and the heater is also decreased.
  • FIG. 6 is a side view, in cross section, of a drum washing machine provided with a wash water-circulating apparatus according to a fourth preferred embodiment of the present invention.
  • the drum washing machine provided with the wash water-circulating apparatus according to the fourth preferred embodiment of the present invention is similar to the drum washing machine provided with the wash water-circulating apparatus according to the third preferred embodiment of the present invention except that the water level sensor is mounted in a different way.
  • the water level sensor 102 is disposed on a connection channel 105 , which is a part of the circulation channel 104 and mounted between the pump assembly 100 and the heater assembly 92 , for measuring the water pressure of the wash water discharged from the pump assembly 100 . Consequently, it is determined whether the pump is normally operated or not, and the water level of the wash water in the tub 86 is detected.
  • FIG. 7 is a side view, in cross section, of a drum washing machine provided with a wash water-circulating apparatus according to a fifth preferred embodiment of the present invention.
  • the drum washing machine provided with the wash water-circulating apparatus according to the fifth preferred embodiment of the present invention is similar to the drum washing machine provided with the wash water-circulating apparatus according to the third preferred embodiment of the present invention except that the water level sensor is mounted in a different way.
  • the water level sensor 102 is disposed at one side of the heater assembly 92 for detecting the water pressure of the wash water discharged from the pump.
  • the heater assembly 92 includes a heater case having an inlet port, through which the wash water is introduced, and an outlet port, through which the wash water is discharged.
  • the water level sensor 102 is disposed at one side of the heater case in such a manner that the water level sensor 102 communicates with the heater case for measuring the water pressure of wash water passing through the pump assembly 100 and the heater assembly 102 . Consequently, it is determined whether the pump is normally operated or not, and the water level of the wash water in the tub 86 is detected.
  • FIG. 8 is a flow chart illustrating a method of controlling a drum washing machine provided with a wash water-circulating apparatus according to the present invention.
  • wash water level is set on the basis of the detected amount of the clothes, and wash water is supplied up to the wash water level (S 1 , S 2 ).
  • the amount of the clothes is detected on the basis of the reserve power of the motor 90 or how many times the wash water is supplied while the clothes are put in the drum 88 .
  • the water-supply valve is opened for a prescribed period of time on the basis of the detected amount of the clothes so that the wash water is supplied into the tub 86 .
  • the pump When the wash water is supplied into the tub 86 up to the minimum water level at which the pump can be operated, the pump is operated for a prescribed period of time so that the wash water in the lower part of the tub is pumped.
  • the pumped water passes through the pump assembly 100 and the heater assembly 92 , and is then sprayed into the tub 86 via the circulation channel 104 so that the clothes become wet.
  • the wash water in the lower part of the tub 86 is pumped.
  • the pumped wash water passes through the pump assembly 100 and the heater assembly 92 , and is then guided along the circulation channel 104 . Consequently, the water pressure P of the wash water is measured by means of the water level sensor 102 mounted at the outlet of the heater assembly 92 .
  • the pump is operated again (S 8 , S 9 ).
  • the time for which the pump is stopped is larger than the prescribed period of time t 0 while the water is supplied through the opened water-supply valve although the pump is stopped, the pump is operated again, whereby the wash water is circulated so that the clothes become wet.
  • the water-supply valve may be closed so that the wash water pumped by means of the pump is absorbed into the clothes for a sufficient period of time.
  • the wash water does not pass through the pump assembly 100 and the heater assembly 92 in the section where the pump is stopped for the prescribed period of time t 0 . Consequently, the water level of the wash water measured by means of the water level sensor is rapidly decreased.
  • the wash water passes through the pump assembly 100 and the heater assembly 92 in the section where the pump is operated again. Consequently, the water level of the wash water measured by means of the water level sensor is rapidly increased.
  • the present invention provides a wash water-circulating apparatus for washing machines, which is capable of detecting the water pressure of wash water discharged from a pump assembly operated when the wash water is re-circulated so that it is determined whether a pump is normally operated or not and the wash water supplied into a tub is detected. Consequently, the minimum amount of the wash water necessary for the pump operation is used when the washing and rinsing processes are carried out, whereby the consumed amount of the wash water is decreased, and the operational reliability of the pump is improved.
  • a wash water circulation channel is connected to the lower part of the tub such that the wash water is sprayed at the lower part of the tub. Consequently, the total length of the circulation channel is relatively shortened, whereby the consumed amount of the wash water and the flow loss are decreased when the washing and rinsing processes are carried out, and thus the consumed amount of electric energy based on the operation of the pump is also decreased.
  • a heater assembly is disposed on the circulation channel. Consequently, it is not necessary to supply an excessive amount of the wash water into the tub such that the heater is submerged under the water in the tub, whereby the consumed amount of the wash water is decreased and the consumed amount of electric energy is also decreased when the clothes are washed. Furthermore, the heater is submerged under the wash water when the pump is operated. Consequently, the operational reliability of the heater is improved.
  • the wash water is further supplied into the tub, and simultaneously the pump is repeatedly stopped for a prescribed time while the pump is operated so that air introduced into the pump is discharged, whereby the operational reliability of the pump is improved.

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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)
  • Cleaning By Liquid Or Steam (AREA)
US10/828,259 2003-04-25 2004-04-21 Wash water-circulating apparatus for washing machines and method of controlling the same Abandoned US20040244433A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2003-0026410A KR100517619B1 (ko) 2003-04-25 2003-04-25 드럼세탁기의 세탁수 순환장치
KR2003-26410 2003-04-25
KR2003-28200 2003-05-02
KR10-2003-0028200A KR100505255B1 (ko) 2003-05-02 2003-05-02 드럼세탁기의 수위감지방법

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US20040244433A1 true US20040244433A1 (en) 2004-12-09

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US10/828,259 Abandoned US20040244433A1 (en) 2003-04-25 2004-04-21 Wash water-circulating apparatus for washing machines and method of controlling the same

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US (1) US20040244433A1 (de)
EP (1) EP1475472A3 (de)
JP (1) JP2004321800A (de)
CN (1) CN100360734C (de)

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EP2698464A2 (de) * 2011-04-14 2014-02-19 LG Electronics Inc. Waschverfahren
US20140236363A1 (en) * 2013-02-18 2014-08-21 Samsung Electronics Co., Ltd. Washing machine and control method thereof
US20150211171A1 (en) * 2012-08-29 2015-07-30 Electrolux Home Products Corporation N.V. Laundry Washing Machine
US9903065B2 (en) 2012-08-29 2018-02-27 Electrolux Home Products Corporation N.V. Laundry washing machine
CN111719290A (zh) * 2019-03-04 2020-09-29 青岛海尔滚筒洗衣机有限公司 具有内循环功能的衣物洗涤设备的控制方法
US20210087734A1 (en) * 2018-02-22 2021-03-25 Lg Electronics Inc. Washing apparatus and method for controlling same
US11371175B2 (en) 2020-06-04 2022-06-28 Midea Group Co., Ltd. Laundry washing machine with dynamic selection of load type
US11486072B2 (en) 2017-09-28 2022-11-01 Midea Group Co., Ltd. Automatic color composition detection for laundry washing machine
US11624138B2 (en) * 2018-10-16 2023-04-11 Lg Electronics Inc. Laundry apparatus and control method thereof
US11773524B2 (en) 2020-12-18 2023-10-03 Midea Group Co., Ltd. Laundry washing machine color composition analysis during loading
US11866868B2 (en) 2020-12-18 2024-01-09 Midea Group Co., Ltd. Laundry washing machine color composition analysis with article alerts
US11898289B2 (en) 2020-12-18 2024-02-13 Midea Group Co., Ltd. Laundry washing machine calibration

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KR101154952B1 (ko) * 2004-12-30 2012-06-18 엘지전자 주식회사 드럼세탁기 및 드럼세탁기의 제어방법
US7544546B2 (en) * 2006-05-15 2009-06-09 International Business Machines Corporation Formation of carbon and semiconductor nanomaterials using molecular assemblies
KR20080004333A (ko) * 2006-07-05 2008-01-09 삼성전자주식회사 세탁기
DE102007033492A1 (de) * 2007-07-18 2009-01-22 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zur Steuerung der Schaumerzeugung in einer Waschmaschine sowie hierzu geeignete Waschmaschine
WO2009136713A2 (ko) * 2008-05-06 2009-11-12 주식회사 대우일렉트로닉스 세탁기의 잔수배출 제어방법
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