US20060260367A1 - Drum type washing and drying machine - Google Patents

Drum type washing and drying machine Download PDF

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Publication number
US20060260367A1
US20060260367A1 US11/361,968 US36196806A US2006260367A1 US 20060260367 A1 US20060260367 A1 US 20060260367A1 US 36196806 A US36196806 A US 36196806A US 2006260367 A1 US2006260367 A1 US 2006260367A1
Authority
US
United States
Prior art keywords
cooling water
hot air
duct
drying
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
US11/361,968
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English (en)
Inventor
Sang Byun
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: BYUN, SANG TAE
Publication of US20060260367A1 publication Critical patent/US20060260367A1/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
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements
    • 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 drum type washing machines, and more particularly, to a drum type washing and drying machine having a new flow structure applied thereto for improving drying efficiency and performance, in which a structure of a condensing device is improved for improving condensing efficiency.
  • the drum type washing machine washes laundry by rotating a drum by driving power of a motor in a state detergent, washing water, and laundry is introduced into the drum.
  • the drum type washing machine is advantageous in that the laundry experiences little damage, the laundry is not entangled, and a washing effect of rubbing and pounding the laundry can be provided.
  • FIG. 1 illustrates a side section of an exemplary related art drum type washing and drying machine, schematically.
  • the related art drum type washing and drying machine is provided with a door 2 on a laundry opening in a front of cabinet 1 , and a tub 3 in the cabinet 1 for holding washing water.
  • drum 4 having pass through holes in an outside circumferential surface rotatably mounted in the tub 3 , and on an outside of the tub 3 , there is a motor unit 5 for transmission of a driving power to the drum 4 .
  • the door 2 is provided with a door glass 2 a convex toward an opening of the tub 3 .
  • the drying duct 7 has a heater 7 b and a fan 7 a built therein for generating and blowing of hot air.
  • the drying duct 7 has one end connected to a gasket 8 connected between a circumference of a front opening of the tub 3 and a circumference to door on a front of the cabinet 1 .
  • the tub 3 has a condensing duct 9 mounted thereon so as to be in communication with the drying duct 7 .
  • the condensing duct 9 has one end connected to a rear of the tub 3 , and the other end connected to the drying duct 7 .
  • the condensing duct 9 has a cooling water supply pipe 9 a for supplying cooling water thereto to condense and remove moisture from air.
  • FIG. 2 illustrates a perspective view showing a state in which the cooling water supply pipe is mounted to the related art condensing duct.
  • the cooling water supply pipe 9 a is formed separate from the condensing duct 9 , and is placed in, and secured to, a fastening hole 9 h in a top of the condensing duct 9 .
  • a water supply hose 9 b is connected to one side of the cooling water supply pipe 9 a.
  • the drum type washing and drying machine performs washing, rinsing, spinning, and drying.
  • a power is supplied to the heater 7 b on the drying duct 7 , when the fan 7 a blows hot air as the fan 7 a and the heater 7 b are put into operation.
  • the hot air hits a sloped portion of the door glass 2 a guided by the drying duct 7 so as to be directed toward an inside of the drum 4 .
  • the hot air directed toward an inside of the drum 4 heats the laundry, to vaporize moisture in the laundry.
  • the drum 4 accelerates vaporization of the moisture.
  • the moisture is discharged through the condensing duct 9 in a state contained in the air.
  • the moisture is removed from the air.
  • the air having the moisture removed thus is introduced into the drying duct 7 again, turned into hot air by the heater 7 b and the fan 7 a , and re-introduced into the drum 4 , to perform drying of the laundry.
  • the drum type washing and drying machine dries the laundry.
  • the related art drum type washing and drying machine has problems in various aspects, such as limitations in drying efficiency and performance coming from an air circulating structure in which drying air is supplied to the drum 4 through a portion where the drying duct 7 is connected to one side of an upper side of the gasket 8 , and discharged again through a side of a front of the tub 3 .
  • the hot air can not be introduced deep into the drum 4 .
  • connection of the drying duct 7 to an outside circumference of an upper side of the gasket 8 causes the gasket 8 to fail in balanced holding of the front of the tub 3 .
  • the cooling water is liable to leak from a junction point of the cooling water supply pipe 9 a and the condensing duct 90 , and the cooling water supply pipe 9 a , formed separately, increases assembly steps.
  • the present invention is directed to a drum type washing and drying machine that substantially obviates one or more problems due to limitations and disadvantages of the related art.
  • a drum type washing and drying machine includes a tub having a hot air inlet and a hot air outlet, a drying duct connected to the hot air inlet, the drying duct having a heater and a fan built in a flow passage therein for producing hot air, and a condensing duct connected to the hot air outlet and the drying duct, for removing moisture from the hot air, wherein the condensing duct includes a cooling water supply portion for guiding cooling water to the condensing duct, at least one water splashing projection in the condensing duct for splashing the cooling water, and a guide flow passage between the cooling water supply portion and the water splashing projection for guiding the cooling water to the water splashing projection.
  • the cooling water supply portion is projected from a top side of the condensing duct.
  • the guide flow passage may be extended from a lower side of the cooling water supply portion along one side of the condensing duct.
  • the guide flow passage has a semicircular section, substantially.
  • the condensing duct, the cooling water supply portion, the guide flow passage, and the water splashing projections are molded as one body.
  • the water splashing projection may be projected from one portion of the guide flow passage.
  • the water splashing projection is projected from an end of the guide flow passage.
  • the water splashing projection is projected in a direction opposite to a direction of a depth of the guide flow passage.
  • FIG. 2 illustrates a perspective view showing a state in which the cooling water supply pipe is mounted to a related art condensing duct
  • FIG. 4 illustrates a perspective view of a condensing duct in accordance with a preferred embodiment of the present invention
  • FIG. 5 illustrates a section across a line I-I in FIG. 4 ;
  • FIG. 6 illustrates a section of a condensing duct in accordance with a preferred embodiment of the present invention.
  • a drain hose H is connected to an underside of the tub 20 , and a drain pump P is mounted in the drain hose H.
  • the heat dissipation plate 43 is constructed of metal, such as a steel plate, the heat dissipation plate 43 may be constructed of plastic having no thermal deformation, having a size to cover a range of radiation heat transmission from the heater 41 in the drying duct 40 .
  • the hot air pass through holes 30 a in the drum 30 has a radial pattern on the whole.
  • heat dissipation means such as heat dissipation fins 44 , may be provided to an upper surface of the drying duct 40 for increasing a heat dissipation area, to prevent the upper surface of the drying duct 40 from overheating.
  • the embodiment suggests molding the condensing duct 100 , the cooling water supply portion 111 , the guide flow passage 112 , and the water splashing projections 130 as one body.
  • the cooling water supply portion 111 is projected from one side of a top side of the condensing duct 100 , and connected to the water supply hose 120 , for receiving cooling water from the water supply hose 120 and supplying the cooling water to the guide flow passage 112 in the condensing duct 100 .
  • the guide flow passage 112 has substantially semicircular section extended downward from the cooling water supply portion 111 along one side of an inside of the condensing duct 100 , so that the cooling water supplied through the cooling water supply portion 111 flows along the guide flow passage 112 , thereby preventing the cooling water from scattering in the condensing duct 100 .
  • the water splashing projections 130 in the condensing duct 100 splashes the cooling water flowing along the guide flow passage 112 .
  • the water splashing projections 130 are projected from an end of the guide flow passage 112 in a direction opposite to a depth direction of the guide flow passage 112 .
  • the hot air is guided by the drying duct 40 , passed through the hot air inlet 20 a in the tub 20 and the hot air pass through holes 30 a in the drum 30 in succession, and introduced into the drum 30 .
  • the hot air introduced into the drum 30 heat the laundry to vaporize moisture in the laundry, carries the moisture to the condensing duct 100 through the hot air outlet 20 b in the tub 20 .
  • the cooling water is supplied to the condensing duct 100 through the cooling water supply portion 111 connected to the water supply hose 120 , and flows toward the water splashing projections 130 along the guide flow passage 112 .
  • the cooling water is then splashed as the cooling water hits the water splashing projections 130 , when a temperature of the hot air drops as splashed cooling water heat exchanges with the hot air, to condense the moisture therein, actively.
  • the condensed water is held on a bottom of the tub 20 connected to the condensing duct 100 , and discharged to an outside of the washing machine through the drain hose ‘H’ by the drain pump ‘P’.
  • the hot air having the moisture therein removed therefrom at the condensing duct 100 is introduced to the drying duct 40 .
  • the hot air inlet 20 a is in the upper side of the front of the tub 20 , and the hot air pass through holes 30 a in the front of the drum 30 is arranged concentrically, in straight lines, or zigzag in a radial direction, for not dropping strength of the front of the drum 30 while making a cross sectional area of the flow passage maximum.
  • the effective arrangement of the hot air pass through holes throughout the front of the drum 30 enabling the hot air inlet 20 a to be in communication with the hot air pass through holes 30 a even if the drum 30 rotates, permits smooth supply of the hot air supplied to the tub 20 through the hot air inlet 20 a to the drum 30 through the hot air pass through holes 30 a in the front of the drum 30 .
  • the heat dissipation plate 43 under the drying duct 40 prevents transmission of heat from the drying duct 40 to the tub 20 .
  • the tub 20 of plastic is liable to deform by the heat from the heater 41 if the drying duct 40 having the heater 41 built therein is mounted thereon directly, the direct transmission of the heat from the drying duct 40 to the tub 20 is cut off by using the heat dissipation plate 43 provided, separately.
  • the direct mounting of the condensing duct 100 to the rear of the tub 20 enables to dispense with separate gasket at a portion the condensing duct 100 is connected to the tub 20 .
  • the molding of the condensing duct 100 , the cooling water supply portion 111 , the guide flow passage 112 , and the water splashing projections 130 as one body makes a structure of the condensing duct 100 simpler than the related art, and enables to resolve the related art problem of cooling water leakage through a portion where the condensing duct and the cooling water supply pipe are connected.
  • the guide flow passage 112 in the condensing duct 100 permits to prevent the cooling water supplied thereto through the water supply hose 120 from scattering.
  • the water splashing projections 130 at a lower side of the condensing duct 100 improves condensing efficiency as the cooling water supplied through the water supply hose 120 flows along the guide flow passage 112 until the cooling water hits the water splashing projections 130 , when the cooling water splashes, resulting to increase a contact area between the humid air drawn into the condensing duct 100 and the cooling water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
US11/361,968 2005-02-28 2006-02-27 Drum type washing and drying machine Abandoned US20060260367A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020050016925A KR101141641B1 (ko) 2005-02-28 2005-02-28 건조겸용 드럼세탁기의 응축덕트 구조
KR10-2005-0016925 2005-02-28

Publications (1)

Publication Number Publication Date
US20060260367A1 true US20060260367A1 (en) 2006-11-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
US11/361,968 Abandoned US20060260367A1 (en) 2005-02-28 2006-02-27 Drum type washing and drying machine

Country Status (3)

Country Link
US (1) US20060260367A1 (de)
KR (1) KR101141641B1 (de)
DE (1) DE102006009057B4 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100101282A1 (en) * 2007-01-10 2010-04-29 Seong Hae Jeong Pedestal washing machine
CN103205872A (zh) * 2012-01-12 2013-07-17 三星电子株式会社 滚筒洗衣机
US20130276322A1 (en) * 2012-04-24 2013-10-24 Whirlpool Corporation Laundry treating appliance door with planar window element and projection
CN104032552A (zh) * 2013-03-05 2014-09-10 三星电子株式会社 衣物处理装置
WO2018001220A1 (zh) * 2016-06-27 2018-01-04 青岛海尔滚筒洗衣机有限公司 洗干一体机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101387497B1 (ko) * 2007-08-03 2014-04-21 엘지전자 주식회사 의류처리장치
KR101197797B1 (ko) * 2009-05-26 2012-11-05 가부시끼가이샤 도시바 의류 건조기
KR20200122928A (ko) 2019-04-19 2020-10-28 삼성전자주식회사 응축덕트 및 이를 세탁건조기
CN115704173A (zh) * 2021-08-03 2023-02-17 无锡小天鹅电器有限公司 冷凝器及具有其的衣物处理设备
KR20230101588A (ko) * 2021-12-29 2023-07-06 삼성전자주식회사 건조 겸용 세탁기

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0320978U (de) * 1989-07-12 1991-02-28
JP3955571B2 (ja) * 2002-01-11 2007-08-08 エルジー エレクトロニクス インコーポレーテッド 改善された凝縮ダクト構造を有する洗濯機及び乾燥機
KR20030061188A (ko) * 2002-01-11 2003-07-18 엘지전자 주식회사 건조겸용 드럼세탁기의 응축장치
KR100499511B1 (ko) * 2003-05-23 2005-07-05 엘지전자 주식회사 건조 겸용 드럼세탁기의 덕트

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100101282A1 (en) * 2007-01-10 2010-04-29 Seong Hae Jeong Pedestal washing machine
US8635890B2 (en) * 2007-01-10 2014-01-28 Lg Electronics Inc. Pedestal washing machine
CN103205872A (zh) * 2012-01-12 2013-07-17 三星电子株式会社 滚筒洗衣机
EP2615205A1 (de) * 2012-01-12 2013-07-17 Samsung Electronics Co., Ltd Trommelwaschtrockner mit Kondensations-Leitung
US9163345B2 (en) 2012-01-12 2015-10-20 Samsung Electronics Co., Ltd. Drum washing machine
US20130276322A1 (en) * 2012-04-24 2013-10-24 Whirlpool Corporation Laundry treating appliance door with planar window element and projection
US8875416B2 (en) * 2012-04-24 2014-11-04 Whirlpool Corporation Laundry treating appliance door with planar window element and projection
CN104032552A (zh) * 2013-03-05 2014-09-10 三星电子株式会社 衣物处理装置
WO2018001220A1 (zh) * 2016-06-27 2018-01-04 青岛海尔滚筒洗衣机有限公司 洗干一体机

Also Published As

Publication number Publication date
KR20060095810A (ko) 2006-09-04
KR101141641B1 (ko) 2012-05-17
DE102006009057B4 (de) 2010-12-30
DE102006009057A1 (de) 2006-09-21

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AS Assignment

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

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BYUN, SANG TAE;REEL/FRAME:018125/0277

Effective date: 20060724

STCB Information on status: application discontinuation

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