US20090094761A1 - Washing machine and operation method thereof - Google Patents

Washing machine and operation method thereof Download PDF

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Publication number
US20090094761A1
US20090094761A1 US12/230,806 US23080608A US2009094761A1 US 20090094761 A1 US20090094761 A1 US 20090094761A1 US 23080608 A US23080608 A US 23080608A US 2009094761 A1 US2009094761 A1 US 2009094761A1
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US
United States
Prior art keywords
rinsing
water
rinsing step
laundry
water removal
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
US12/230,806
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English (en)
Inventor
Deug-Hee LEE
Pyoung-Hwan KIM
Eun-Jin Park
Hyung-Yong Kim
Seong-Hae JEONG
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
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: JEONG, SEONG-HAE, KIM, HYUNG-YONG, KIM, PYOUNG-HWAN, LEE, DEUG-HEE, PARK, EUN-JIN
Publication of US20090094761A1 publication Critical patent/US20090094761A1/en
Abandoned 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
    • 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
    • D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress

Definitions

  • the present invention relates to a washing machine and an operation method thereof.
  • an operation method of a washing machine may include a washing step for washing laundry, a rinsing step for supplying water or circulating water after performing the washing step so as to rinse the laundry, and a dehydrating step for dehydrating the laundry after performing the rinsing step.
  • the rinsing step is performed in an order of water supply, intermittent dehydration and main dehydration, while supplying clean water to the laundry.
  • the rising step may be repeated for several times between the washing step and the dehydrating step.
  • the rinsing step for the laundry cannot be smoothly performed, thus to cause a problem of having detergent remnants remaining in the laundry even after the rinsing step.
  • an object of the present invention is to provide an operation method of a washing machine equipped with enhanced rinsing performance. Another object of the present invention is to provide a washing machine which can independently perform a remaining water removal function.
  • an operation method of a washing machine including: a washing step for washing laundry, a rinsing step for rinsing the laundry by supplying water after performing the washing step and including a remaining water removal process, and a final dehydrating step for dehydrating the laundry after performing the rinsing step.
  • the remaining water removal process is performed in an order of water supply, water supply suspension and drain, and the rinsing step is repeated for several times between the washing step and the dehydrating step.
  • the remaining water removal process is included only in any one of the repeated rinsing steps or in all of the repeated rinsing steps.
  • the rinsing step is sequentially performed through a first rinsing step, a second rinsing step and a third rinsing step.
  • a series of processes including drain, intermittent dehydration, main dehydration, remaining water removal process, water supply and rinsing process are sequentially performed.
  • the rinsing step is sequentially performed through a first rinsing step, a second rinsing step and a third rinsing step.
  • steps of drain, intermittent dehydration, main dehydration, remaining water removal process, water supply and rinse are sequentially performed.
  • steps of drain, intermittent dehydration, main dehydration, water supply and rinse are sequentially performed.
  • a washing machine having a remaining water removal button for independently performing a remaining water removal function, which is sequentially performed through the steps of water supply, water supply suspension and drain.
  • a washing machine including: a cabinet forming an external appearance, a tub disposed inside the cabinet and storing washing water, a drum rotatably mounted inside the tub and receiving laundry, a driving motor for rotating the drum, a detergent supply device for supplying water mixed with a detergent to the tub, a water supply device having a plurality of valves for supplying or suspending water to the detergent supply device, a drain pump for pumping water stored in the tub to the outside, and a control panel for receiving an inputting of a manipulation command from a user so as to control an entire operation of the washing machine and provided with a remaining water removal button.
  • the water supply device supplies water to the tub for a certain period of time, and the drain pump performs a remaining water removal process in which water inside the tub is drained to the outside.
  • FIG. 1 is a schematic view of a drum type washing machine driven by an operation method of a washing machine according to a first embodiment of the present invention
  • FIG. 2 is an exemplary view of a control panel having a remaining water removal button in FIG. 1 ;
  • FIG. 3 is a block diagram showing an operation method of a washing machine according to a first embodiment of the present invention.
  • FIG. 4 is a block diagram showing an operation method of a washing machine according to a second embodiment of the present invention.
  • FIG. 1 is a schematic view of a drum type washing machine driven by an operation method of a washing machine according to a first embodiment of the present invention
  • FIG. 2 is an exemplary view of a control panel having a remaining water removal button in FIG. 1 .
  • the drum type washing machine driven by the operation method of a washing machine may include a cabinet 5 forming an external appearance, a tub 3 disposed inside the cabinet 5 and storing washing water, a drum 9 rotatably mounted inside the tub 3 and receiving laundry, a driving motor 7 , 8 for rotating the drum 9 , a rotation shaft 17 for transferring a rotation force of the driving motor 7 , 8 to the drum 9 , a bearing 11 for supporting the rotation shaft 17 , a sealing member 13 for preventing a leakage of water between the tub 3 and the drum 9 into the bearing 11 , a detergent supply device 30 for supplying water mixed with a detergent to the tub 3 , a water supply device 20 having a plurality of valves for supplying or suspending water to the detergent supply device 30 , a drain pump 40 for pumping water stored in the tub 3 to the outside, and a control panel 70 for receiving an inputting of a manipulation command from a user so as to control an entire operation of the
  • a door 1 is disposed at the front of the cabinet 5 , and a gasket 2 is mounted between the door 1 and the tub 3 .
  • a stopping spring 4 for supporting the tub 3 is disposed between an upper inner surface of the cabinet 5 and an upper side of an outer circumferential surface of the tub 3
  • a friction damper 10 for reducing vibration of the tub 3 is disposed between a lower inner surface of the cabinet 5 and a lower side of the outer circumferential surface of the tub 3 .
  • a plurality of lifters 9 a are installed inside the drum 9 so as to lift up and down the laundry.
  • the driving motor 7 , 8 may include a stator 7 serving as a direct drive (DD) motor and having a coil wound onto a slot, and a rotor 8 rotating at an outer circumferential surface of the stator 7 and having a permanent magnet 12 therein.
  • DD direct drive
  • the stator 7 is coupled to a rear wall of the tub 3 by a plurality of coupling members 19 .
  • the rotor 8 is coupled at a rear end of the rotation shaft 17 by a coupling member 18 .
  • stator 7 If power is applied to the coil of the stator 7 , the stator 7 is electromagnetized and interacts with the permanent magnet 12 that is attached inside the rotor 8 , thereby rotating the rotor 8 . The rotation force of the rotor 8 is transferred to the drum 9 via the rotation shaft 17 .
  • the bearing 11 is installed inside a bearing housing 15 , and includes a front bearing disposed at the front of the rotation shaft 17 and a rear bearing disposed at the rear of the rotation shaft 17 .
  • the sealing member 13 is installed on an outer circumference of the rotation shaft 17 so as to insert the rotation shaft 17 , thereby preventing a leakage of water between the tub 3 and the drum 9 into the bearing 11 .
  • the detergent supply device 30 is configured to mix supplied water with a detergent, thus to supply the same to the tub 3 via a supply pipe 31 .
  • the detergent supply device 30 may be configured to have a case, and a detergent container disposed inside the case and storing a variety of detergents therein.
  • a siphon pipe is formed at a bottom of the detergent container.
  • a water supply inlet connected to a connection pipe 22 is formed at an upper side of the ease, and a detergent outlet connected to the supply pipe 31 is formed at a bottom of the case.
  • connection pipe 22 water supplied through the connection pipe 22 is mixed with the detergent stored in the detergent container, and then comes out of the detergent container at a certain water level via the siphon pipe.
  • the water mixed with the detergent, coming out of the detergent container, is supplied to the tub 3 via the supply pipe 31 .
  • the water supply device 20 may include a supply pipe 21 connected to an external source of water supply, and the connection pipe 22 connected to the detergent supply device 30 .
  • the drain pump 40 may include a drain pipe 41 connected to a lower side of the tub 3 , and a connection pipe 42 connected to an external drain.
  • the control panel 70 is provided with the remaining water removal button 71 which can perform independently the remaining water removal process, if desired by the user. That is, if the user presses the remaining water removal button 71 to remove the remaining water in the tub 3 , the remaining water removal process is performed.
  • Such remaining water removal process is comprised of a water supply process in which the water supply device 20 supplies water to the tub 3 via the detergent supply device 30 and the supply pipe 31 , a water supply suspension process which suspends water supply, and a drain process in which the drain pump 40 is operated to discharge the remaining water to the outside via the drain pipe 41 connected to the lower side of the tub 3 .
  • Such remaining water removal button 71 enables the user to select an option to remove the remaining water inside the washing machine at any time, thereby providing a convenience to the user.
  • FIG. 3 is a block diagram showing an operation method of a washing machine according to a first embodiment of the present invention.
  • the operation method of the washing machine may include a washing step S 10 for washing laundry, a rinsing step S 20 for rinsing the laundry by supplying water after performing the washing step and including a remaining water removal process S 44 , and a final dehydrating step S 30 for dehydrating the laundry after performing the rinsing step.
  • the detergent supply device 30 is configured to mix water supplied from the water supply device 20 with the stored detergent, and to supply the water mixed with the detergent to the tub 3 via the supply pipe 31 .
  • the driving motor 7 , 8 is configured to rotate the drum 9 in a clockwise or counter-clockwise direction, thereby washing the laundry in a dropping or reciprocal friction manner.
  • the rinsing step S 20 is repeated for several times between the washing step S 10 and the final dehydrating step S 30 so as to enhance the rinsing performance.
  • the rinsing step S 20 includes a first rinsing step S 21 , a second rinsing step S 22 , and a third rinsing step S 23 .
  • Such rinsing step S 20 is repeated for 3 times.
  • the rising step may be repeated for more than 3 times for more enhanced rinsing performance.
  • the first, second and third rinsing steps S 21 , S 22 and S 23 are sequentially performed.
  • a series of processes including a drain S 41 , intermittent dehydration S 42 , main dehydration S 43 , remaining water removal process S 44 , water supply S 45 and rinse S 46 , is sequentially performed.
  • the drain process S 41 refers to a process in which the drain pump 40 discharges washing water in the lower side of the tub 3 to the outside via the drain pipe 41 and the connection pipe 42 .
  • the intermittent dehydration process S 42 refers to a process in which, before proceeding to the main dehydration process S 43 , the driving motor 7 , 8 dehydrates the laundry while rotating the drum 9 at a low speed (350-400 rpm) in a clockwise or counter-clockwise direction.
  • This intermittent dehydration process S 42 disentangles the tangled laundry, thereby preventing an unbalanced state of the drum 9 , thus to prevent an occurrence of vibration and noise when dehydrating the laundry.
  • the main dehydration process S 43 refers to a process which dehydrates the laundry by rotating the drum 9 at a high speed (800-1200 rpm) after performing the intermittent dehydration process S 42 .
  • the water supply process S 45 refers to a process in which the water supply device 20 supplies water to the tub 3 via the supply pipe 31 .
  • the rinsing step S 46 refers to a process in which the driving motor 7 , 8 rotates the drum 9 in a clockwise or counter-clockwise direction so as to rinse the laundry.
  • the remaining water removal process S 44 refers to a process which removes detergent solution remaining inside the washing machine after performing the main dehydration process S 43 .
  • the remaining water removal process S 44 may include a water supply process S 61 in which the water supply device 20 supplies water to the tub 3 via the detergent supply device 30 and the supply pipe 31 , a water supply suspension process S 62 for suspending the water supply, and a drain process S 63 which operates the drain pump 40 to discharge the remaining water to the outside via the drain pipe 41 connected to the lower side of the tub 3 .
  • the rinsing step S 20 includes the remaining water removal process S 44 .
  • the detergent solution with a certain concentration remaining inside the washing machine would be removed through the remaining water removal process. Accordingly, clean water supplied is not contaminated by the remaining detergent solution, thereby smoothing the rinsing process of the laundry.
  • detergent remnants can be prevented from being remained in the laundry after performing the rinsing step.
  • FIG. 4 is a block diagram showing an operation method of a washing machine according to a second embodiment of the present invention.
  • the operation method of a washing machine may include a washing step S 10 for washing laundry, a rinsing step S 20 ′ for rinsing the laundry by supplying water after performing the washing step S 10 and including a remaining water removal process S 44 , and a final dehydration process S 30 for dehydrating the laundry after performing the rinsing step S 20 ′.
  • the detergent supply device 30 mixes the water supplied from the water supply device 20 with the stored detergent, and then supplies the water mixed with the detergent to the tub 3 via the supply pipe 31 . Then, the driving motor 7 , 8 rotates the drum 9 in a clockwise or counter-clockwise direction, thereby washing the laundry in a dropping or reciprocal friction manner.
  • the rinsing step S 20 ′ is repeated for several times between the washing step S 10 and the final dehydration step S 30 so as to enhance the rinsing performance.
  • the rinsing step S 20 ′ includes a first rinsing step S 21 ′, a second rinsing step S 22 ′ and a third rinsing step S 23 ′.
  • Such rinsing step S 20 ′ is repeated for 3 times.
  • the rising step may be repeated for more than 3 times for more enhanced rinsing performance.
  • the first, second and third rinsing steps S 21 ′, S 22 ′ and S 23 ′ are sequentially performed.
  • a series of processes including drain S 41 , intermittent dehydration S 42 , main dehydration S 43 , remaining water removal process S 44 , water supply S 45 and rinse S 46 is sequentially performed.
  • a series of processes including drain S 51 , intermittent dehydration S 52 , main dehydration S 53 , water supply S 54 and rinse S 55 is sequentially performed.
  • the drain processes S 41 and S 51 refer to the process in which the drain pump 40 discharges washing water in the lower side of the tub 3 to the outside via the drain pipe 41 and the connection pipe 42 .
  • the intermittent dehydration processes S 42 and S 52 refer to the process in which, before proceeding to the main dehydration process S 43 , the driving motor 7 , 8 dehydrates the laundry while rotating the drum 9 at a low speed (350-400 rpm) in a clockwise or counter-clockwise direction.
  • This intermittent dehydration processes S 42 and S 52 disentangle the tangled laundry, thereby preventing an unbalanced state of the drum 9 , thus to prevent an occurrence of vibration and noise when dehydrating the laundry.
  • the main dehydration processes S 43 and S 53 refer to the process which dehydrates the laundry by rotating the drum 9 at a high speed (800-1200 rpm) after performing the intermittent dehydration processes S 42 and S 52 .
  • the water supply processes S 45 and S 54 refer to the process in which the water supply device 20 supplies water to the tub 3 via the supply pipe 31 .
  • the rinsing steps S 46 and S 55 refer to the process in which the driving motor 7 , 8 rotates the drum 9 in a clockwise or counter-clockwise direction so as to rinse the laundry.
  • the remaining water removal process S 44 refers to a process which removes detergent solution remaining inside the washing machine after performing the main dehydration process S 43 .
  • the remaining water removal process S 44 may include a water supply process S 61 in which the water supply device 20 supplies water to the tub 3 via the detergent supply device 30 and the supply pipe 31 , a water supply suspension process S 62 for suspending the water supply, and a drain process S 63 which operates the drain pump 40 to discharge the remaining water to the outside via the drain pipe 41 connected to the lower side of the tub 3 .
  • the rinsing step S 20 includes the remaining water removal process S 44 .
  • the detergent solution with a certain concentration remaining inside the washing machine would be removed through the remaining water removal process. Accordingly, clean water is supplied, thereby smoothing the rinsing process of the laundry.
  • detergent remnants can be prevented from being remained in the laundry after performing the rinsing step.
  • the remaining water removal process S 44 is included only in the first rinsing step S 21 ′. This is because the first rinsing step S 21 ′ is performed immediately after the washing step S 10 , the greatest amount of the detergent solution would remain inside the washing machine. Accordingly, performing the remaining water removal process S 44 only in the first rinsing step S 21 ′ enables to remove an amount of water supply for removing the remaining water as well as to enhance the remaining water removal effect.
  • the operation method of a washing machine is provided with the rinsing step having the remaining water removal process between the main dehydration step and the water supply step. Accordingly, after the main dehydration is completed, the detergent solution with a certain concentration remaining inside the washing machine can be removed through the remaining water removal process, thereby preventing the contamination of supplied clean water due to the detergent solution, thus to smooth the rinsing process of the laundry. Further, after the rinsing step is performed, a problem of detergent remnants in the laundry can be solved.
  • the remaining water removal process is included only in the first (initial) rinsing step among the plurality of rinsing steps, the amount of water supply for removing the remaining water can be reduced as well as the remaining water removal effect can be enhanced.
  • the remaining water removal button enables the user to select an option to remove remaining water inside the washing machine at any time, thereby providing a convenience to the user.

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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)
US12/230,806 2007-09-05 2008-09-04 Washing machine and operation method thereof Abandoned US20090094761A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070090116A KR100933485B1 (ko) 2007-09-05 2007-09-05 세탁기의 운전방법
KR10-2007-0090116 2007-09-05

Publications (1)

Publication Number Publication Date
US20090094761A1 true US20090094761A1 (en) 2009-04-16

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US12/230,806 Abandoned US20090094761A1 (en) 2007-09-05 2008-09-04 Washing machine and operation method thereof

Country Status (5)

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US (1) US20090094761A1 (ko)
KR (1) KR100933485B1 (ko)
CN (1) CN101177868A (ko)
DE (1) DE102008045372A1 (ko)
FR (1) FR2923496B1 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110016638A1 (en) * 2009-07-23 2011-01-27 Lg Electronics Inc. Washing machine and washing method
CN108642810A (zh) * 2018-04-04 2018-10-12 青岛海尔洗衣机有限公司 一种清除洗衣机内残留水的控制方法及洗衣机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190135637A (ko) * 2018-05-29 2019-12-09 주식회사 위니아대우 세탁기 및 그의 구동 장치
CN113842100B (zh) * 2021-09-09 2023-09-19 珠海格力电器股份有限公司 洗碗机的控制方法、装置及设备、洗碗机
CN114145686B (zh) * 2021-11-22 2023-09-12 珠海格力电器股份有限公司 洗涤控制方法、装置及洗碗机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1566312A (en) * 1922-05-18 1925-12-22 C & P Mfg Co Washing machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960023415A (ko) * 1994-12-21 1996-07-20 구자홍 드럼 세탁기의 헴굼 방법
KR0156197B1 (ko) * 1995-07-06 1998-12-15 구자홍 정수 세탁기의 잔수 제거장치 및 방법
KR101082889B1 (ko) * 2004-07-09 2011-11-11 엘지전자 주식회사 세탁기의 제어방법

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1566312A (en) * 1922-05-18 1925-12-22 C & P Mfg Co Washing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110016638A1 (en) * 2009-07-23 2011-01-27 Lg Electronics Inc. Washing machine and washing method
US9187856B2 (en) * 2009-07-23 2015-11-17 Lg Electronics Inc. Washing machine and washing method
CN108642810A (zh) * 2018-04-04 2018-10-12 青岛海尔洗衣机有限公司 一种清除洗衣机内残留水的控制方法及洗衣机

Also Published As

Publication number Publication date
FR2923496A1 (fr) 2009-05-15
KR100933485B1 (ko) 2009-12-23
DE102008045372A1 (de) 2009-04-23
CN101177868A (zh) 2008-05-14
KR20090025061A (ko) 2009-03-10
FR2923496B1 (fr) 2012-10-05

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AS Assignment

Owner name: LG ELECTRONICS INC., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, DEUG-HEE;KIM, PYOUNG-HWAN;PARK, EUN-JIN;AND OTHERS;REEL/FRAME:022047/0345

Effective date: 20081112

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION