US20150121967A1 - Drum type washing machine - Google Patents

Drum type washing machine Download PDF

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Publication number
US20150121967A1
US20150121967A1 US14/109,538 US201314109538A US2015121967A1 US 20150121967 A1 US20150121967 A1 US 20150121967A1 US 201314109538 A US201314109538 A US 201314109538A US 2015121967 A1 US2015121967 A1 US 2015121967A1
Authority
US
United States
Prior art keywords
water
water supply
washing machine
drum type
type washing
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
US14/109,538
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English (en)
Inventor
Young Bae Lee
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.)
WiniaDaewoo Co Ltd
Original Assignee
Dongbu Daewoo Electronics 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 Dongbu Daewoo Electronics Corp filed Critical Dongbu Daewoo Electronics Corp
Assigned to DONGBU DAEWOO ELECTRONICS CORPORATION reassignment DONGBU DAEWOO ELECTRONICS CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LEE, YOUNG BAE
Publication of US20150121967A1 publication Critical patent/US20150121967A1/en
Abandoned legal-status Critical Current

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Classifications

    • D06F39/045—
    • 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 
    • D06F39/04—Heating 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 
    • D06F33/30—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
    • D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • 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
    • 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
    • D06F2103/16—Washing liquid temperature
    • 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
    • D06F2105/02—Water supply
    • 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
    • D06F2105/10—Temperature of washing liquids; Heating means therefor
    • D06F2202/04—
    • D06F2204/04—
    • D06F2204/086—
    • 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 
    • D06F39/02—Devices for adding soap or other washing agents
    • 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

Definitions

  • the present disclosure relates to a drum type washing machine, and more particularly, to a drum type washing machine that is capable of controlling a temperature of washing water.
  • a drum type washing machine uses a method of placing laundry through a door at a front side of the washing machine, and washing the laundry using a relatively small amount of water and detergent.
  • the drum type washing machine includes a cabinet that forms an exterior of the washing machine, a tub in the cabinet configured to contain the washing water, a rotatable drum in the tub configured to receive the laundry, a motor in or under the tub configured to provide motive power to the drum, a water supply device configured to supply water to the tub, and a drainage device configured to discharge the washing water from the tub to the outside of the cabinet after the washing operation is terminated.
  • a detergent case is at one side of the cabinet and a water supply pipe is connected to the tub through the detergent case.
  • the detergent in the detergent case may be supplied into the tub.
  • the conventional drum type washing machine has a heater for heating the washing water in the tub, and washes the laundry with high-temperature washing water by heating the washing water contained in the tub with the heater.
  • the heater is continuously operated, or the washing water is unnecessarily heated, and as a result, power may be wasted.
  • the detergent stored in the detergent case is supplied to the tub together with relatively cold water, the detergent may not be easily dissolved.
  • the present disclosure provides a drum type washing machine that is capable of reducing consumption of power, conserving washing water, and efficiently dissolving detergent.
  • Exemplary embodiments of the present disclosure provide a drum type washing machine, including a tub configured to containing washing water, a rotatable drum in the tub configured to receive laundry, a water supply pipe configured to supply water to the tub, a water supply stand-by box connected to the water supply pipe, and a heating device in the water supply stand-by box configured to increase a temperature of water in the water supply stand-by box.
  • the drum type washing machine may further include a control valve on the water supply pipe between the water supply stand-by box and the tub, a temperature sensor in the water supply stand-by box, and a control unit configured to control an operation of the heating device and the control valve.
  • the control device may control the heating device and the control valve according to various factors, such as information received from temperature sensor, the washing step being performed, and the washing situation.
  • the control unit is configured to separate a washing operation, a spin-dry operation, and/or a rinsing operation into a plurality of steps to control the heating device and the control valve.
  • the control unit may open the control valve when the temperature of the washing water in the water supply stand-by box is equal to or higher than a predetermined value.
  • the predetermined value may have one of a plurality of different values according to the washing step and/or situation.
  • the drum type washing machine may further include a detergent storage unit connected to the water supply pipe between the control valve and the tub, and the water from the water supply stand-by box may be supplied to the detergent storage unit.
  • a drum type washing machine can reduce consumption of power, conserve water, and easily dissolve detergent.
  • FIG. 1 is a configuration diagram of a drum type washing machine according to exemplary embodiments of the present disclosure.
  • FIG. 2 is a configuration diagram illustrating an exemplary operation of the drum type washing machine of FIG. 1 .
  • the exemplary embodiments of the present disclosure illustrate ideal exemplary embodiments of the present disclosure in more detail. As a result, various modifications of the drawings are expected. Accordingly, the exemplary embodiments are not limited to a specific form of the illustrated region, and for example, include a modification of a form by manufacturing.
  • the drum type washing machine 101 includes a tub 200 , a drum 250 , a water supply pipe 310 , a water supply stand-by box 400 , and a heating device 450 .
  • the drum type washing machine 101 may further include a detergent storage unit 500 , a control valve 350 , a temperature sensor 460 , a control unit 700 , a drainage pipe 390 , a damper 600 , and a cabinet 800 .
  • the cabinet 800 forms an exterior of the drum type washing machine 101 , and an operating panel (not illustrated) configured to allow a user to operate the drum type washing machine 101 may be in or on the cabinet 800 .
  • the tub 200 in the cabinet 800 is configured to contain the washing water.
  • the rotatable drum 250 is in the tub 200 and configured to receive laundry.
  • the drum 250 has a cylindrical shape with one side or end open, and has a plurality of holes that allow the washing water to flow into the drum 250 from the tub 200 .
  • a plurality of lifters may be in the drum 250 (not illustrated). Therefore, when the drum 250 rotates, the laundry is washed when the laundry is lifted and subsequently dropped by the rotary force of the drum.
  • the drum type washing machine 101 may further include a driving motor at a rear side of the tub 200 , configured to rotate the drum 250 .
  • the damper 600 suppresses vibrations while supporting the tub 200 .
  • the damper 600 absorbs vibrations generated when the drum 250 rotates to wash the laundry.
  • the drainage pipe 390 discharges the washing water contained in the tub 200 to the outside of the cabinet 800 after the washing process is terminated or completed.
  • the water supply pipe 310 supplies new water to the tub 200 .
  • the drum type washing machine 101 may further include a valve that controls drainage of the drainage pipe 390 .
  • the water supply stand-by box 400 is connected to the water supply pipe 310 .
  • the water supplied to the tub 200 by the water supply pipe 310 passes through the water supply stand-by box 400 .
  • the water supply stand-by box 400 may have a predetermined volume, and the volume of the water supply stand-by box 400 may depend on the volume of the tub 200 and the total washing capacity of the drum type washing machine 101 .
  • the heating device 450 increases the temperature of the water in the water supply stand-by box 400 .
  • the heating device 450 may be in or in contact with a surface of the water supply stand-by box 400 .
  • the heating device 450 may be a heater driven by electricity (e.g., a resistive heater).
  • the heating device 450 may heat the washing water in the water supply stand-by box 400 through self heat emission and/or by burning a gas (e.g., propane) supplied to the heating device 450 .
  • a gas e.g., propane
  • Part or all of an interface between the heating device 450 and the water supply stand-by box 400 may comprise or consist essentially of a metal or other heat conductor.
  • a gasket between the heating device 450 and the water supply stand-by box 400 may comprise a heat resistant and water-tight material.
  • the control valve 350 is on or in the water supply pipe 310 between the water supply stand-by box 400 and the tub 200 .
  • the control valve 350 controls a flow rate of the water from the water supply stand-by box 400 to the tub 200 .
  • the temperature sensor 460 measures the temperature of the washing water in the water supply stand-by box 400 .
  • the control unit 700 controls an operation of the heating device 450 and may control the control valve 350 according to a plurality of factors, such as information (e.g., the temperature) received from the temperature sensor 460 and the present washing situation.
  • the “washing situation” may refer to a temperature dependent washing environment (e.g., hot, warm, or cold water) for a particular type or types of laundry, together with the washing operation or cycle that may be divided into various steps.
  • the control unit 700 may also control the driving motor (not illustrated) that rotates the drum 250 .
  • control unit 700 divides the washing situation into the washing operation or cycle, a spin-dry operation or cycle, and/or a rinsing operation or cycle to control the heating device 450 , the control valve 350 , and the driving motor (not illustrated).
  • the drum type washing machine 101 separates the washing operation into a plurality of steps to perform the plurality of steps.
  • the control unit 700 actuates the heating device 450 and may open the control valve 350 when the temperature of the water in the water supply stand-by box 400 is equal to or higher than a predetermined value.
  • the predetermined value may have a temperature in the range of, for example, 30° C. to 40° C., but is not limited thereto.
  • the detergent storage unit 500 may be connected to the water supply pipe 310 between the control valve 350 and the tub 200 .
  • the detergent storage unit 500 may receive water heated by the heating device 450 in the water supply stand-by box 400 as necessary.
  • the drum type washing machine 101 may reduce consumption of power, conserve the washing water, and easily dissolve the detergent.
  • the drum type washing machine 101 may perform the plurality of steps of the washing stroke or cycle.
  • a washing stroke or cycle performed in three steps will be described as an example.
  • the control valve 350 is closed, and water fills in the water supply stand-by box 400 . Subsequently, the washing water is heated by the heating device 450 .
  • the temperature of the water in the water supply stand-by box 400 is sensed by the temperature sensor 460 , and when the temperature is lower than a predetermined value, the control unit 700 actuates the heating device 450 to increase the temperature of the water in the water supply stand-by box 400 .
  • the control unit 700 opens the control valve 350 to supply the water to the tub 200 , as illustrated in FIG. 2 .
  • the predetermined value may be a temperature within the range of 30° C. to 35° C.
  • the water that has been heated in the water supply stand-by box 400 dissolves the detergent in the detergent storage unit 500 , and the water with the detergent dissolved therein is supplied to the tub 200 .
  • water is supplied to the tub 200 from a primary water supply (e.g., separate from the water supplied from the box 400 ) until it reaches a level sufficient to wash the laundry in the drum 250 (e.g., which may be a predetermined minimum level).
  • a primary water supply e.g., separate from the water supplied from the box 400 .
  • the laundry when the primary water supply is completed, the laundry is washed by rotating the drum 250 .
  • the washing may be performed for approximately 15 to 25 minutes, but is not limited thereto.
  • the temperature of the washing water is lower than the temperature of the water from the box 400 due to heat loss during the primary washing.
  • the control unit 700 may supply the water in the water supply stand-by box 400 (e.g., a secondary water supply) to the tub 200 by opening the control valve 350 .
  • the control unit 700 maintains the water supplied to the tub 200 from the water supply stand-by box 400 at a predetermined temperature by controlling the heating device 450 according to information from the temperature sensor 460 .
  • the predetermined temperature when the secondary water supply is supplied to the tub 200 may be within the range of 10° C. to 20° C.
  • the temperature of the water in the tub 200 may decrease by introducing the secondary water supply.
  • the control unit 700 may performs additional washing (or, alternatively, rinsing) by rotating the drum 250 when the secondary water supply is completed.
  • the additional washing or rinsing may be performed for approximately 25 to 35 minutes, but is not limited thereto.
  • the primary washing step is omitted, and the washing process begins with the additional washing step (e.g., when performing cold water washing).
  • the control unit 700 may open the control valve 350 to further supply water to the tub 200 .
  • the control unit 700 increases the temperature of the water in the water supply stand-by box 400 to a predetermined value by controlling the heating device 450 according to information from the temperature sensor 460 .
  • the water supplied to the tub 200 from the water supply stand-by box 400 at the time of the further water supply step may have a temperature that increases the temperature of the water in the tub 200 to a temperature within the range of 30° C. to 35° C.
  • the water supplied to the tub 200 from the water supply stand-by box 400 may have a temperature within the range of 35° C. to 40° C.
  • the control unit 700 may perform an optional tertiary washing and/or rinsing step when the tertiary water supply is completed.
  • the tertiary washing and/or rinsing step may be performed for approximately 35 to 45 minutes.
  • the tertiary washing and/or rinsing step is completed, the water in the tub 200 is discharged through the drainage pipe, and the spin-dry operation or cycle and/or the rinsing operation or cycle (or a further rinsing operation or cycle) may be performed (not necessarily in that order).
  • the drum type washing machine 101 can reduce consumption of power, conserve water, and easily dissolve the detergent.
  • the heating device 450 increases the temperature of the water in the water supply stand-by box 400 , it may be possible to minimize unnecessary heating of the washing water.
  • the control unit 700 easily controls the heating device 450 with precision.
  • the water supplied to the tub 200 may be precisely controlled in a predetermined volume and/or temperature through the water supply stand-by box 400 , a total amount of water may be reduced.
  • the dissolution of the detergent may improve.

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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)
US14/109,538 2013-11-06 2013-12-17 Drum type washing machine Abandoned US20150121967A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2013-0134385 2013-11-06
KR20130134385 2013-11-06

Publications (1)

Publication Number Publication Date
US20150121967A1 true US20150121967A1 (en) 2015-05-07

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US14/109,538 Abandoned US20150121967A1 (en) 2013-11-06 2013-12-17 Drum type washing machine

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CN (1) CN104631059A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113355848A (zh) * 2020-03-03 2021-09-07 青岛海尔滚筒洗衣机有限公司 一种洗衣机的衣物处理方法及其洗衣机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107034631B (zh) * 2016-02-03 2020-06-16 青岛海尔滚筒洗衣机有限公司 一种洗衣机及其控制方法
CN106283496A (zh) * 2016-08-30 2017-01-04 无锡小天鹅股份有限公司 洗衣机及其洗涤控制方法
CN106436192A (zh) * 2016-10-18 2017-02-22 成都言行果科技有限公司 一种水温可调的智能清洗装置及其调节水温的方法
CN109722846B (zh) * 2018-11-26 2020-11-17 苏州依唯森电器有限公司 地面实时烘干平台
CN111088644A (zh) * 2019-11-02 2020-05-01 珠海格力电器股份有限公司 一种洗衣机内筒的水路清洁结构及多桶洗衣机

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US20030051296A1 (en) * 2001-09-20 2003-03-20 Maytag Corporation Control system for clothes washing machine incorporating heater
KR20070078584A (ko) * 2006-01-27 2007-08-01 엘지전자 주식회사 드럼 세탁기 및 이를 이용하는 세탁수의 공급 방법
US20090139038A1 (en) * 2007-08-03 2009-06-04 Lg Electronics Inc. Washing machine
US20090260406A1 (en) * 2006-08-02 2009-10-22 Lg Electronics Inc. Washing Machine

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CN102080323B (zh) * 2009-11-27 2014-11-05 海尔集团公司 一种洗衣机进水溶解洗衣粉的控制方法及其洗衣机
CN102041663A (zh) * 2010-06-17 2011-05-04 海尔集团公司 溶质溶解盒、洗涤控制方法和装置以及洗衣机
KR20130017219A (ko) * 2011-08-10 2013-02-20 주식회사 대우일렉트로닉스 드럼 세탁기의 급수 제어 장치 및 방법
CN102433710B (zh) * 2011-09-29 2016-12-07 青岛海尔滚筒洗衣机有限公司 洗衣机洗衣控制方法及其洗衣机
CN203034260U (zh) * 2012-11-30 2013-07-03 陆建益 具有热水功能的洗衣机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030051296A1 (en) * 2001-09-20 2003-03-20 Maytag Corporation Control system for clothes washing machine incorporating heater
KR20070078584A (ko) * 2006-01-27 2007-08-01 엘지전자 주식회사 드럼 세탁기 및 이를 이용하는 세탁수의 공급 방법
US20090260406A1 (en) * 2006-08-02 2009-10-22 Lg Electronics Inc. Washing Machine
US20090139038A1 (en) * 2007-08-03 2009-06-04 Lg Electronics Inc. Washing machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113355848A (zh) * 2020-03-03 2021-09-07 青岛海尔滚筒洗衣机有限公司 一种洗衣机的衣物处理方法及其洗衣机

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AS Assignment

Owner name: DONGBU DAEWOO ELECTRONICS CORPORATION, KOREA, REPU

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LEE, YOUNG BAE;REEL/FRAME:031803/0474

Effective date: 20131217

STCB Information on status: application discontinuation

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