US20080245113A1 - Drum Type Washing Machine - Google Patents

Drum Type Washing Machine Download PDF

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Publication number
US20080245113A1
US20080245113A1 US11/956,832 US95683207A US2008245113A1 US 20080245113 A1 US20080245113 A1 US 20080245113A1 US 95683207 A US95683207 A US 95683207A US 2008245113 A1 US2008245113 A1 US 2008245113A1
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US
United States
Prior art keywords
tub
washing machine
disposed
machine according
cabinet
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
US11/956,832
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English (en)
Inventor
Chang Hoo Kim
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
Daewoo Electronics Co Ltd
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 Daewoo Electronics Co Ltd filed Critical Daewoo Electronics Co Ltd
Assigned to DAEWOO ELECTRONICS CORPORATION reassignment DAEWOO ELECTRONICS CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KIM, CHANG HOO
Publication of US20080245113A1 publication Critical patent/US20080245113A1/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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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
    • D06F58/00—Domestic laundry dryers
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 

Definitions

  • the present invention relates to a drum type washing machine which performs a drying function, and more particularly to a drum type washing machine that has improved drying efficiency.
  • a front-loaded, drum type washing machine is a machine designed to clean laundry with detergent and water in a drum by rotating the drum about a horizontal axis, with a drive force of a motor.
  • the front-loaded drum type washing machine has many advantages when compared to a top-loading washing machine, such as less laundry damage and entanglement, and more cleaning effectiveness due to laundry pounding and rubbing effects in a washing operation.
  • FIG. 1 is a sectional side elevation view of a conventional drum type washing machine.
  • the washing machine includes a cabinet 1 having an opening defined in a front side thereof, a door 2 hingably attached to the cabinet 1 to open or close the opening, and a tub 3 disposed inside the cabinet 1 to receive water.
  • a drum 4 having holes on an outer peripheral surface is rotatably disposed inside the tub 3 , and a motor assembly 5 is disposed through the tub 3 to supply a drive force to the drum 4 .
  • the door 2 is provided with a door glass 2 a that protrudes outside an opening of the tub 3 .
  • a spring 6 is disposed between an inner upper side of the cabinet 1 and an outer upper side of the tub 3 to support the tub 3
  • a damper (not shown) is disposed between an inner lower side of the cabinet 1 and an outer lower side of the tub 3 to reduce vibration of the tub 3 generated during the operation of the drum type washing machine.
  • the motor assembly 5 is generally operated in an indirect drive manner such that the drive force of a motor 5 a is transferred to a washing operation shaft 5 c via a belt 5 b to rotate the drum 4 .
  • the washing machine includes a drying duct 7 disposed at the inner upper side of the cabinet 1 .
  • the drying duct 7 has a heater 7 b and a blow fan 7 a to generate and blow hot air.
  • the drying duct 7 is connected at one end to a gasket 8 , which bridges the circumference of the opening of the tub 3 to the circumference of the opening in the cabinet 1 for the door 2 .
  • the gasket 8 is disposed along a front inner circumference of the tub 3 and has a corrugated shape to receive vibration from the tub 3 .
  • the tub 3 is provided with a condensing duct 9 that communicates with the drying duct 7 .
  • the condensing duct 9 is connected at one end to the rear of the tub 3 , and at the other end to the drying duct 7 .
  • the condensing duct 9 is provided with a condensed water supply tube to supply condensing water that serves to condense and remove moisture from air.
  • the condensing water supply tube 9 a is a separate component independent of the condensing duct 9 and is fitted into a securing groove formed on an upper portion of the condensing duct 9 . At this time, the condensing water supply tube 9 a is connected at one side to a water supply hose.
  • the operation of the drum type washing machine with a drying function includes a washing cycle, a rinsing cycle, spin-drying cycle, and a drying cycle.
  • the drying cycle of the washing machine with the drying function is as follows.
  • the hot air collides with a slanted section of the door glass 2 a and is introduced into the drum 4 as guided by the drying duct 7 .
  • the hot air evaporates moisture from laundry while heating the laundry.
  • the drum 4 is rotated at a low speed to stir the laundry in the drum 4 such that the laundry can be uniformly exposed to the hot air, thereby promoting evaporation of moisture from the laundry.
  • Evaporated moisture is discharged in a state of being contained in air through the condensing duct 9 .
  • the moisture is removed from the air by spraying water from the condensing water supply tube 9 a .
  • the air after having the moisture removed, is introduced again into the drying duct 7 , and is changed to hot air by the heater 7 b and blow fan 7 a , which in turn flows again into the drum 4 for the drying operation.
  • laundry is dried by repeating such an aforementioned series of processes.
  • the present invention is conceived to solve the problems of the conventional washing machine as described above, and an aspect of the present invention is to provide a drum type washing machine that has improved drying efficiency.
  • a drum type washing machine includes: a tub disposed inside a cabinet; a drum disposed inside the tub; and a suction duct communicating with the tub.
  • the suction duct may be disposed at an upper side of the tub.
  • the suction duct may be connected at one end to a through-hole formed on a rear side of the tub, and have the opposed end located as a free end inside the cabinet.
  • the drum may formed to have inflow holes at a location corresponding to the location of the tub through-hole.
  • the inflow holes may be arranged in a circular band shape on a rear side of the drum.
  • the drum type washing machine may further include: an exhaust duct communicating with the tub and extending to an outside of the cabinet; an exhaust fan disposed at a discharge hole side of the tub; and a motor to drive the exhaust fan.
  • the exhaust duct may communicate with the discharge hole, an extension conduit and a housing may be disposed between the discharge hole and the exhaust duct, and the exhaust fan may be disposed in the housing.
  • the tub may be provided with balancers separated from each other, and the extension conduit may be disposed between the balancers.
  • the housing may have a bottom surface located a predetermined height higher than that of the extension conduit to form a step between the bottom surfaces of the housing and the extension conduit.
  • the washing machine may further include a drainage pump to drain water from the tub to an outside of the cabinet, and a connection pipe extending between the bottom surface of the extension conduit and the drainage pump.
  • the discharge hole may be disposed at a lower side of the tub.
  • the washing machine may further include a heater disposed inside the suction duct.
  • FIG. 1 is a sectional side elevation view of a conventional drum type washing machine
  • FIG. 2 is a sectional side elevation view of a drum type washing machine in accordance with one embodiment of the present invention
  • FIG. 3 is a front view of a tub of the drum type washing machine in accordance with one embodiment of the present invention.
  • FIG. 4 is a rear view of a drum of the drum type washing machine according to one embodiment of the present invention.
  • the drum type washing machine includes a cabinet 50 , a tub 52 inside the cabinet 50 to receive water, a drum 54 rotatably disposed inside the tub 52 to receive laundry, a drive unit 58 provided to the tub 52 and connected to the drum 54 , a water supply device 56 extending from an outside of the cabinet 50 to the tub 52 , a drainage unit 59 extending through the tub 52 to the outside of the cabinet 50 , and a dryer to remove moisture from washed laundry.
  • the dryer includes a suction duct 60 communicating with the tub 52 , an exhaust duct 70 communicating with the tub 52 and extending to the outside of the cabinet 50 , an exhaust fan 72 disposed at a side of a discharge hole 52 b of the tub 52 , and a motor 74 connected to a rotational shaft of the exhaust fan 72 .
  • the suction duct 60 is preferably provided therein with a heater 62 to heat air being introduced into the suction duct 60 .
  • the suction duct 60 is connected at one end 64 to the tub 52 , and has a free end 66 formed at the end opposed to the one end 64 .
  • the free end 66 of the suction duct 60 remains disconnected from nearby structures, and is located inside the cabinet 50 to reduce the amount of dust in the air being drawn in through the suction duct 60 .
  • a tub through-hole 52 a is formed on the rear of the tub 52 to be connected with the suction duct 60
  • the discharge hole 52 b is formed at the opening of the tub 52 to communicate with the exhaust duct 70 .
  • the air While being introduced along the suction duct 60 , the air is heated and converted to dry hot air by the heater 62 . Thus, when it comes into contact with laundry moving inside the drum 54 , the dry hot air absorbs moisture from the laundry. Then, the air containing the moisture is discharged outside the cabinet through the exhaust duct 70 via the exhaust fan 72 .
  • the suction duct 60 is preferably located at an upper side of the tub 52 .
  • the discharge hole 52 b is preferably located at a lower side of the tub 52 . More preferably, the discharge hole 52 b is located in a diagonal direction with respect to the suction duct 60 through which air is sucked into the cabinet 50 .
  • the suction duct 60 is disposed on an inner wall of the cabinet 50 , and is bent in a -shape to have one end 64 connected to the rear of the tub 52 and the opposed end 66 located as a free end inside the cabinet 50 .
  • an extension conduit 76 and a housing 78 are disposed between the discharge hole 52 b and the exhaust duct, and the exhaust fan 72 is disposed inside the housing 78 .
  • internal air is discharged from the drum 54 to the outside through the exhaust duct 70 , and external air of a low humidity is supplied into the drum 52 through the suction duct 60 .
  • the drying efficiency of the washing machine is improved.
  • the tub 52 has a pair of balancers 80 disposed in a separated state on opposed sides of the tub opening 52 c ( FIG. 3 ).
  • the extension conduit 76 is disposed between the balancers 80 so as not to interfere with the balancers 80 .
  • the rear side of the drum 54 is provided with inflow holes 54 a .
  • the inflow holes 54 a are formed to extend through the rear side of the drum 54 at a location corresponding to the location of the tub through-hole 52 a .
  • the plural inflow holes 54 a are spaced at predetermined intervals from each other. Since the drum 54 is rotated during use, the inflow holes 54 a are preferably formed in a circular band shape on the rear side of the drum 54 . Since the tub through-hole 52 a continues to face the inflow holes 54 a during the rotation of the drum 54 , the air having flowed into the tub 52 through the tub through-hole 52 can be supplied into the drum 54 via the inflow holes 54 a.
  • the bottom of the housing 78 is located a predetermined height above that of the extension conduit 76 to form a step 77 between the bottom surfaces of the housing 78 and the extension conduit 76 , and a connection pipe 79 is disposed between the bottom of the extension conduit 76 and the drainage pump 59 b . Accordingly, when flowing into the extension conduit 76 through the discharge hole 52 b , water is accumulated on the bottom surface of the extension conduit 76 , and is then discharged to the outside of the cabinet 50 through the drainage unit 59 . Specifically, water flows into the connection pipe 79 and discharged by the drainage pump 59 a outside of the cabinet 50 through the drainage pipe 59 a.
  • water passing through the discharge hole 52 b is accumulated on the bottom of the extension conduit 76 , and is then discharged outside the cabinet 50 through the drainage pump 59 b and drainage pipe 59 a via the extension conduit 76 .
  • Air flowing into the extension conduit 76 through the discharge hole 52 b is directed toward the exhaust duct 70 by the exhaust fan 72 , and is then exhausted outside the cabinet 50 .
  • the water and air passing through the discharge hole 52 b are separated and discharged outside the cabinet 50 along the drainage pipe 59 a and the exhaust duct 70 , respectively.
  • extension conduit 76 on the front side of the tub 52 is disposed between the balancers 80 so as to have a predetermined separation between the extension conduit 76 and the balancers 80 , the extension conduit 76 is prevented from contacting the balancers 80 when the drying operation or the washing operation is performed as described above.
  • the washing machine according to the present invention has improved drying efficiency by performing a drying operation with air of high temperature and low humidity.
  • the washing machine of the invention circulates air using an exhaust fan, enabling efficient circulation of air, and thus reducing time and cost for the drying operation.
  • the free end 66 of a suction duct is located inside the cabinet, thereby preventing foreign matter from entering the tub 52 .
  • the suction duct 60 is disposed at an upper side of the tub 52 , so that air flowing into the tub 52 is uniformly distributed to laundry inside a drum 54 , and so that air having a low humidity is drawn into the tub 52 .
  • the suction duct 60 communicates with the upper side of the tub 52 , and the discharge hole 52 b is disposed at the lower side of the tub 52 . Accordingly, the washing machine ensures an extended contact time between inflow air and laundry, uniform distribution of air with respect to the laundry, and improved drying efficiency.
  • the washing machine has plural balancers 80 separated from each other to prevent intervention between a drying device and other components, thereby suppressing vibration during the drying and washing operations. Therefore, the washing machine avoids being damaged, and also performs quiet and stable washing and drying operations.
  • the washing machine has a step 77 formed between the extension conduit 76 and a housing 78 , and is provided with a connection pipe 79 to guide water accumulated on the bottom of the extension conduit 76 to a drainage pump 59 b , so that air and water passing through a discharge hole 52 b are discharged in a separated state to the outside, and so that malfunction or corrosion-related damage of an exhaust fan 72 caused by contact between water and the exhaust fan is prevented, thereby extending a lifetime of the washing machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
US11/956,832 2007-04-06 2007-12-14 Drum Type Washing Machine Abandoned US20080245113A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070034385A KR100860053B1 (ko) 2007-04-06 2007-04-06 드럼세탁기
KR10-2007-0034385 2007-04-06

Publications (1)

Publication Number Publication Date
US20080245113A1 true US20080245113A1 (en) 2008-10-09

Family

ID=39825771

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/956,832 Abandoned US20080245113A1 (en) 2007-04-06 2007-12-14 Drum Type Washing Machine

Country Status (7)

Country Link
US (1) US20080245113A1 (fr)
EP (1) EP2140060A4 (fr)
JP (1) JP4937407B2 (fr)
KR (1) KR100860053B1 (fr)
CN (1) CN101688353B (fr)
TW (1) TWI350869B (fr)
WO (1) WO2008123649A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080295696A1 (en) * 2007-05-28 2008-12-04 Young-Jong Kim Washing machine having dehumidifying apparatus and dehumidifying method thereof
US20180171523A1 (en) * 2015-06-03 2018-06-21 Lg Electronics Inc. Laundry treatment apparatus
WO2019045446A1 (fr) * 2017-08-29 2019-03-07 Samsung Electronics Co., Ltd. Lave-linge et son procédé de commande
CN113994041A (zh) * 2019-07-18 2022-01-28 三星电子株式会社 洗衣机及其控制方法
US12123124B2 (en) 2019-07-18 2024-10-22 Samsung Electronics Co., Ltd. Washing machine and controlling method thereof

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200001497A (ko) * 2018-06-27 2020-01-06 엘지전자 주식회사 세탁기
RU2764136C1 (ru) 2018-06-27 2022-01-13 ЭлДжи ЭЛЕКТРОНИКС ИНК. Стиральная машина
WO2020004907A1 (fr) 2018-06-27 2020-01-02 Lg Electronics Inc. Lave-linge et procédé d'assemblage d'un tel lave-linge
KR20200001495A (ko) * 2018-06-27 2020-01-06 엘지전자 주식회사 세탁기 및 세탁기의 조립방법
CN111850934B (zh) * 2019-04-19 2023-04-18 青岛海尔洗衣机有限公司 一种洗干一体式洗衣机及其烘干方法
CN113355856B (zh) * 2020-03-04 2024-08-16 青岛海尔洗衣机有限公司 一种透气阀及衣物处理装置

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US3402477A (en) * 1966-11-07 1968-09-24 Philco Ford Corp Dual compartment laundry apparatus
US6530245B1 (en) * 1999-10-21 2003-03-11 Kabushiki Kaisha Toshiba Drum type washing machine with drying function
US20030089138A1 (en) * 2001-11-14 2003-05-15 Sanyo Electric Co., Ltd. Drum type washing and drying machine
US20060117808A1 (en) * 2004-12-02 2006-06-08 Samsung Electronics Co., Ltd. Drum type washing machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3402477A (en) * 1966-11-07 1968-09-24 Philco Ford Corp Dual compartment laundry apparatus
US6530245B1 (en) * 1999-10-21 2003-03-11 Kabushiki Kaisha Toshiba Drum type washing machine with drying function
US20030089138A1 (en) * 2001-11-14 2003-05-15 Sanyo Electric Co., Ltd. Drum type washing and drying machine
US20060117808A1 (en) * 2004-12-02 2006-06-08 Samsung Electronics Co., Ltd. Drum type washing machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080295696A1 (en) * 2007-05-28 2008-12-04 Young-Jong Kim Washing machine having dehumidifying apparatus and dehumidifying method thereof
US20180171523A1 (en) * 2015-06-03 2018-06-21 Lg Electronics Inc. Laundry treatment apparatus
WO2019045446A1 (fr) * 2017-08-29 2019-03-07 Samsung Electronics Co., Ltd. Lave-linge et son procédé de commande
US10900161B2 (en) 2017-08-29 2021-01-26 Samsung Electronics Co., Ltd. Washing machine and control method thereof
US11512420B2 (en) 2017-08-29 2022-11-29 Samsung Electronics Co., Ltd. Washing machine and control method thereof
CN113994041A (zh) * 2019-07-18 2022-01-28 三星电子株式会社 洗衣机及其控制方法
US12123124B2 (en) 2019-07-18 2024-10-22 Samsung Electronics Co., Ltd. Washing machine and controlling method thereof

Also Published As

Publication number Publication date
JP2010523195A (ja) 2010-07-15
EP2140060A4 (fr) 2011-06-29
EP2140060A1 (fr) 2010-01-06
TW200840907A (en) 2008-10-16
CN101688353B (zh) 2011-11-30
KR100860053B1 (ko) 2008-09-24
WO2008123649A1 (fr) 2008-10-16
JP4937407B2 (ja) 2012-05-23
TWI350869B (en) 2011-10-21
CN101688353A (zh) 2010-03-31

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Legal Events

Date Code Title Description
AS Assignment

Owner name: DAEWOO ELECTRONICS CORPORATION, KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KIM, CHANG HOO;REEL/FRAME:020253/0130

Effective date: 20071205

STCB Information on status: application discontinuation

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