KR101235193B1 - Washing machine and control method thereof - Google Patents

Washing machine and control method thereof Download PDF

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Publication number
KR101235193B1
KR101235193B1 KR1020050050538A KR20050050538A KR101235193B1 KR 101235193 B1 KR101235193 B1 KR 101235193B1 KR 1020050050538 A KR1020050050538 A KR 1020050050538A KR 20050050538 A KR20050050538 A KR 20050050538A KR 101235193 B1 KR101235193 B1 KR 101235193B1
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South Korea
Prior art keywords
condensate tank
tank
water supply
condensate
water
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KR1020050050538A
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Korean (ko)
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KR20060129849A (en
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표상연
김형균
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삼성전자주식회사
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Priority to KR1020050050538A priority Critical patent/KR101235193B1/en
Priority to US11/280,290 priority patent/US20060277690A1/en
Priority to EP05025456A priority patent/EP1734170B1/en
Priority to DE602005012372T priority patent/DE602005012372D1/en
Publication of KR20060129849A publication Critical patent/KR20060129849A/en
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    • D06F39/40—
    • 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
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/08—Humidity
    • 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
    • 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
    • D06F2103/60—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to auxiliary conditioning or finishing agents, e.g. filling level of perfume tanks
    • D06F2103/62—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to auxiliary conditioning or finishing agents, e.g. filling level of perfume tanks related to systems for water or steam used for conditioning or finishing
    • 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
    • D06F2105/08—Draining of washing liquids
    • 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
    • D06F2105/28—Electric heating
    • 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
    • D06F2105/30—Blowers
    • 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
    • D06F2105/36—Condensing arrangements, e.g. control of water injection therefor
    • 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
    • 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
    • D06F33/65—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of conditioning or finishing phases, e.g. for smoothing or removing creases
    • 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

Abstract

세탁물의 건조과정에서 생기는 응축수를 스팀발생장치로 공급함으로써 스팀발생장치에 스케일이 생기는 문제를 최소화할 수 있도록 한 세탁기 및 그 제어방법을 개시한다. 이 세탁기는 세탁조 내부공기의 제습을 위한 열교환기를 갖춘 건조장치와, 세탁조로 스팀을 공급하는 스팀발생장치를 포함하며, 열교환기의 제습에 의해 생기는 응축수를 집수하는 응축수탱크와, 응축수탱크의 물을 스팀발생장치로 공급하기 위한 스팀용 급수장치를 포함한다.Disclosed is a washing machine and a method of controlling the same, by minimizing the problem of generating scale in a steam generator by supplying condensed water generated during drying of laundry to a steam generator. The washing machine includes a drying apparatus having a heat exchanger for dehumidifying the internal air of the washing tank, a steam generator for supplying steam to the washing tank, a condensate tank for collecting condensate generated by dehumidification of the heat exchanger, and a water in the condensate tank. It includes a water supply for steam to supply to the steam generator.

Description

세탁기 및 그 제어방법{WASHING MACHINE AND CONTROL METHOD THEREOF}[0001] WASHING MACHINE AND CONTROL METHOD THEREOF [0002]

도 1은 본 발명에 따른 세탁기의 구성도이다.1 is a block diagram of a washing machine according to the present invention.

도 2는 본 발명에 따른 세탁기의 열교환기를 나타낸 사시도이다.2 is a perspective view showing a heat exchanger of the washing machine according to the present invention.

도 3은 본 발명에 따른 세탁기의 동작제어를 위한 제어블록도이다.3 is a control block diagram for controlling the operation of the washing machine according to the present invention.

도 4는 본 발명에 따른 세탁기 건조동작의 제어과정을 나타낸 흐름도이다.4 is a flowchart illustrating a control process of a washing machine drying operation according to the present invention.

도 5는 본 발명에 따른 세탁기 스팀공급동작의 제어과정을 나타낸 흐름도이다.5 is a flowchart illustrating a control process of the washing machine steam supply operation according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10: 본체, 11: 세탁조,10: main body, 11: washing tub,

12: 회전드럼, 14: 구동모터,12: rotary drum, 14: drive motor,

18b: 제1배수밸브, 20: 급수장치,18b: first drain valve, 20: water supply device,

21: 제1급수밸브, 24: 제2급수밸브,21: first feed valve, 24: second feed valve,

30: 건조장치, 35: 열교환기,30: dryer, 35: heat exchanger,

36: 송풍장치, 37: 제1히터,36: blower, 37: first heater,

38: 외기송풍팬, 39: 응축수 안내관,38: fresh air fan, 39: condensate guide,

40: 스팀용 급수장치, 42: 급수펌프,40: water supply for steam, 42: water feed pump,

43: 제3급수밸브, 50: 스팀발생장치,43: third water supply valve, 50: steam generator,

60: 응축수탱크, 61: 수위센서,60: condensate tank, 61: level sensor,

63: 제2배수밸브. 63: second drain valve.

본 발명은 세탁기 및 그 제어방법에 관한 것으로, 더욱 상세하게는 세탁물을 건조시키는 기능과 스팀을 공급하는 기능을 구비한 세탁기 및 그 제어방법에 관한 것이다.The present invention relates to a washing machine and a control method thereof, and more particularly, to a washing machine having a function of drying laundry and a function of supplying steam, and a control method thereof.

대한민국 공개특허공보 2005-43771호에는 세탁물의 건조를 수행할 수 있는 건조유닛을 갖춘 세탁기의 예가 개시되어 있다. 이 세탁기의 건조유닛은 수조 내부의 공기를 순환시키기 위한 건조덕트와, 건조덕트의 공기를 송풍하는 송풍팬과, 건조덕트를 순환하여 수조로 공급되는 공기를 가열하는 히터와, 건조덕트를 통과하는 공기를 냉각시켜 수분을 응축시킴으로써 제습을 수행하는 냉각기를 갖추고 있다. 이는 송풍팬과 히터의 동작에 의해 수조 내부로 가열된 공기가 공급되도록 하고, 수조 내부의 다습한 공기가 건조덕트를 순환하는 과정에서 냉각기에 의해 제습되도록 함으로써 세탁물을 건조시킬 수 있도록 한 것이다. 이러한 세탁기의 경우 냉각기의 제습작용에 의해 생기는 응축수는 통상적으로 배수관을 통해 외부로 배출되도록 하고 있다. Korean Unexamined Patent Publication No. 2005-43771 discloses an example of a washing machine having a drying unit capable of drying laundry. The drying unit of the washing machine includes a drying duct for circulating air in the tank, a blower fan for blowing the air in the drying duct, a heater for circulating the drying duct to heat the air supplied to the tank, and a drying duct. It is equipped with a cooler which performs dehumidification by cooling air to condense moisture. This is to allow the heated air to be supplied to the inside of the tank by the operation of the blower fan and the heater, and to dry the laundry by allowing the humid air in the tank to be dehumidified by the cooler in the process of circulating the drying duct. In the case of such a washing machine, condensate generated by the dehumidifying action of the cooler is typically discharged to the outside through a drain pipe.

대한민국 공개특허공보 2004-88884호에는 드럼의 내부로 고온의 스팀을 공급하여 세탁물의 세탁효과를 높이고 살균을 수행할 수 있는 스팀발생장치를 갖춘 세 탁기의 예가 개시되어 있다. 이 세탁기의 스팀발생장치는 물을 수용하는 압력용기, 압력용기의 물을 가열하여 스팀을 발생시키는 히터, 압력용기에서 생긴 스팀을 드럼 내부로 공급하기 위한 증기유로를 갖추고 있다. 또 압력용기에는 외부의 급수원으로부터 물이 공급될 수 있도록 급수유로가 연결되어 있다. Korean Laid-Open Patent Publication No. 2004-88884 discloses an example of a washing machine equipped with a steam generator that can supply high temperature steam to the inside of the drum to increase the washing effect of the laundry and perform sterilization. The steam generator of the washing machine includes a pressure vessel for receiving water, a heater for heating steam in the pressure vessel to generate steam, and a steam passage for supplying steam generated from the pressure vessel into the drum. In addition, a water supply passage is connected to the pressure vessel so that water can be supplied from an external water supply source.

그러나 이러한 세탁기의 스팀발생장치는 외부 급수원으로부터 압력용기로 물이 공급되기 때문에 장기간 사용할 경우 물에 포함된 칼슘, 마그네슘 성분 등으로 인해 압력용기의 내면이나 히터의 외면에 스케일이 생기는 문제가 있었다.However, since the steam generator of the washing machine is supplied with water from the external water supply to the pressure vessel, there is a problem that scale occurs on the inner surface of the pressure vessel or the outer surface of the heater due to the calcium and magnesium components contained in the water when used for a long time.

본 발명은 이러한 문제점을 해결하기 위한 것으로, 본 발명의 목적은 세탁물의 건조과정에서 생기는 응축수를 스팀발생장치로 공급하여 스팀을 발생시키도록 함으로써 스팀발생장치에 스케일이 생기는 문제를 최소화할 수 있도록 하는 세탁기 및 그 제어방법을 제공하는 것이다.The present invention is to solve this problem, an object of the present invention is to supply the condensed water generated during the drying process of the laundry to the steam generating device to generate steam to minimize the problem that the scale occurs in the steam generating device It is to provide a washing machine and a control method thereof.

이러한 목적을 달성하기 위한 본 발명에 따른 세탁기는 세탁조 내부공기의 제습을 위한 열교환기를 갖춘 건조장치와, 상기 세탁조로 스팀을 공급하는 스팀발생장치를 포함하며, 상기 열교환기의 응축수를 집수하는 응축수탱크와, 상기 응축수탱크의 물을 상기 스팀발생장치로 공급하기 위한 스팀용 급수장치를 포함하는 것을 특징으로 한다.Washing machine according to the present invention for achieving this object includes a drying apparatus having a heat exchanger for dehumidifying the internal air of the washing tank, and a steam generator for supplying steam to the washing tank, the condensate tank for collecting the condensed water of the heat exchanger And, characterized in that it comprises a water supply for steam for supplying the water of the condensate tank to the steam generator.

또한 상기 스팀용 급수장치는 상기 응축수탱크와 상기 스팀발생장치를 연결하는 스팀용 급수관과, 상기 급수관에 설치되는 급수펌프와, 상기 급수관을 개폐하 는 급수밸브를 포함하는 것을 특징으로 한다.The steam water supply device may include a steam water supply pipe for connecting the condensate tank and the steam generator, a water supply pump installed in the water supply pipe, and a water supply valve for opening and closing the water supply pipe.

또한 상기 응축수탱크의 수위를 감지하는 수위센서와, 상기 응축수탱크의 수위가 설정수위 미만일 때 상기 응축수탱크 쪽으로 외부의 물을 공급하는 급수장치와, 상기 응축수탱크의 수위가 설정수위 이상일 때 상기 응축수탱크의 물을 배수시키는 배수장치를 더 포함하는 것을 특징으로 한다.In addition, a water level sensor for detecting the water level of the condensate tank, a water supply unit for supplying external water toward the condensate tank when the water level of the condensate tank is less than the set level, and the condensate tank when the water level of the condensate tank is above the set level It characterized in that it further comprises a drainage for draining the water.

또한 본 발명에 따른 세탁기의 제어방법은 세탁조 내부공기의 제습을 위한 열교환기를 갖춘 건조장치와, 상기 세탁조로 스팀을 공급하는 스팀발생장치와, 상기 열교환기의 응축수를 집수하는 응축수탱크를 포함하는 것에 있어서, 건조행정을 수행할 때 상기 응축수탱크의 수위를 감지하고, 상기 응축수탱크의 수위가 최대설정수위 이상이면 상기 응축수탱크의 배수구를 개방시켜 물을 배수시키는 것을 특징으로 한다.In addition, the control method of the washing machine according to the present invention includes a drying apparatus having a heat exchanger for dehumidifying the internal air of the washing tank, a steam generator for supplying steam to the washing tank, and a condensate tank for collecting the condensed water of the heat exchanger. In the case of performing a drying operation, the water level of the condensate tank is sensed, and if the water level of the condensate tank is equal to or greater than the maximum set water level, the condensate tank is characterized in that the drainage is opened to drain the water.

또한 본 발명에 따른 세탁기의 제어방법은 건조행정을 수행할 때 상기 응축수탱크의 수위가 최대설정수위 미만이면 상기 응축수탱크의 배수구를 폐쇄시키는 것을 특징으로 한다.In addition, the control method of the washing machine according to the present invention is characterized in that when the water level of the condensate tank is less than the maximum set level when performing the drying stroke, the drain port of the condensate tank is closed.

또한 본 발명에 따른 세탁기의 제어방법은 세탁조 내부공기의 제습을 위한 열교환기를 갖춘 건조장치와, 상기 세탁조로 스팀을 공급하는 스팀발생장치와, 상기 열교환기의 응축수를 집수하는 응축수탱크를 포함하는 것에 있어서, 상기 세탁조로 스팀공급을 수행할 때 상기 응축수탱크의 수위를 감지하고,상기 응축수탱크의 수위가 최저설정수위 이상이면 상기 스팀발생장치를 동작시키면서 스팀용 급수장치를 통해 상기 응축수탱크의 물을 상기 스팀발생장치로 공급하도록 제어하는 것을 특징으로 한다.In addition, the control method of the washing machine according to the present invention includes a drying apparatus having a heat exchanger for dehumidifying the internal air of the washing tank, a steam generator for supplying steam to the washing tank, and a condensate tank for collecting the condensed water of the heat exchanger. The water level of the condensate tank is sensed when supplying steam to the washing tank, and if the water level of the condensate tank is higher than the minimum set level, the water of the condensate tank is supplied through the water supply device for steam while operating the steam generator. It characterized in that the control to supply to the steam generator.

또한 본 발명은 스팀공급을 수행할 때 상기 응축수탱크의 수위가 최저설정수위 미만이면 외부급수장치를 통해 상기 응축수탱크에 물이 공급되도록 제어하는 것을 특징으로 한다.In addition, the present invention is characterized in that the control of the water supply to the condensate tank through the external water supply if the water level of the condensate tank is less than the minimum set level when performing steam supply.

또한 본 발명은 스팀공급을 수행할 때 상기 응축수탱크의 수위가 최저설정수위 이상이면 상기 외부급수장치에 의한 상기 응축수탱크의 급수가 중단되도록 제어하는 것을 특징으로 한다.In addition, the present invention is characterized in that the control of the water supply of the condensate tank by the external water supply device is stopped when the water level of the condensate tank is more than the minimum set level when performing steam supply.

이하에서는 본 발명에 따른 바람직한 실시 예를 첨부 도면을 참조하여 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 따른 세탁기는 도 1에 도시한 바와 같이, 세탁수의 담수를 위해 본체(10) 내부에 설치된 드럼형 세탁조(11)와, 세탁조(11)의 내부에 회전 가능하게 설치되는 회전드럼(12)을 포함하는 드럼세탁기이다. The washing machine according to the present invention, as shown in Figure 1, the drum-type washing tank 11 installed in the main body 10 for the fresh water of the wash water, and a rotating drum rotatably installed in the washing tank 11 ( 12) a drum washing machine comprising: a.

회전드럼(12)은 후면 중심에 결합되는 회전축(13)을 통해 세탁조(11)의 후면 중심부에 회전 가능하게 지지된다. 그리고 세탁조(11)의 후면 외측에는 회전드럼(12)을 회전시키는 모터(14)가 설치된다. 또 회전드럼(12)은 세탁수가 그 내부로 유통할 수 있도록 둘레에 형성되는 다수의 통공들(12a)과, 회전할 때 세탁물의 상승 및 낙하가 이루어질 수 있도록 내면에 설치되는 복수의 리프터들(12b)을 구비한다. 본체(10) 전면에는 회전드럼(12)의 내부로 세탁물을 넣거나 꺼낼 수 있도록 개방된 입구(15)가 형성되고, 입구(15)에는 입구를 개폐하는 도어(16)가 설치된다. The rotating drum 12 is rotatably supported at the center of the rear of the washing tank 11 through the rotating shaft 13 coupled to the rear center. And the motor 14 for rotating the rotating drum 12 is installed on the outside of the rear of the washing tank (11). In addition, the rotating drum 12 includes a plurality of through holes 12a formed around the washing water to flow therein, and a plurality of lifters installed on the inner surface of the washing machine to allow the laundry to rise and fall when rotating. 12b). An opening 15 is formed at the front of the main body 10 so that laundry can be put into or taken out of the rotating drum 12, and a door 16 opening and closing the entrance is installed at the entrance 15.

또 본 발명의 세탁기는 세탁조(11)의 내부로 세탁수를 공급하기 위한 급수장 치(20), 세탁조(11)로 세제를 공급하기 위한 세제공급장치(17), 세탁조(11)의 물을 배수시키기 위한 배수장치(18), 회전드럼(12) 내부의 세탁물을 건조시키는 건조장치(30), 세탁조(11) 내부로 스팀을 공급하기 위한 스팀발생장치(50)를 구비한다. In addition, the washing machine of the present invention provides a water supply device 20 for supplying the wash water into the washing tank 11, a detergent supply device 17 for supplying the detergent to the washing tank 11, and water in the washing tank 11. Drainage device 18 for draining, a drying device 30 for drying the laundry in the rotating drum 12, and a steam generator 50 for supplying steam into the washing tank (11).

급수장치(20)는 외부의 급수원으로부터 세제공급장치(17) 쪽으로의 급수를 제어하는 제1급수밸브(21), 제1급수밸브(21)와 세제공급장치(17) 사이를 연결하는 제1급수관(22), 세제공급장치(17)와 세탁조(11) 사이를 연결하는 제2급수관(23)을 포함한다. 이는 제1급수관(22)을 통하여 공급되는 물이 세제공급장치(17)를 거쳐 세탁조(11)로 공급되도록 함으로써 세제용해장치(17)의 세제가 급수되는 물과 함께 세탁조(17)로 공급될 수 있도록 한 것이다. 또한 급수장치(20)는 후술할 응축수탱크(60) 쪽으로의 급수를 위한 제2급수밸브(24)와 제3급수관(25)을 포함한다. The water supply device 20 is configured to connect the first water supply valve 21, the first water supply valve 21, and the detergent supply device 17 to control the water supply from the external water supply to the detergent supply device 17. It includes a first water supply pipe 22, the second water supply pipe 23 for connecting between the detergent supply device 17 and the washing tank (11). This allows the water supplied through the first water supply pipe 22 to be supplied to the washing tank 11 through the detergent supply device 17 to be supplied to the washing tank 17 together with the water supplied with the detergent of the detergent dissolving device 17. I would have to. In addition, the water supply device 20 includes a second water supply valve 24 and a third water supply pipe 25 for supplying water toward the condensate tank 60 to be described later.

세탁조(11)의 물을 배수시키는 배수장치(18)는 세탁조(11)의 하부에 연결되는 배수관(18a)과, 이 배수관(18a)을 개폐하는 제1배수밸브(18b)를 포함한다. 이는 세탁행정 종료 후 또는 헹굼이나 탈수를 수행할 때 제1배수밸브(18b)를 개방시킴으로써 세탁조(11)의 물을 배수시킬 수 있게 한 것이다.The drainage device 18 for draining the water in the washing tank 11 includes a drain pipe 18a connected to the lower part of the washing tank 11 and a first drain valve 18b for opening and closing the drain pipe 18a. This makes it possible to drain the water in the washing tank 11 by opening the first drain valve 18b after the end of the washing stroke or when performing rinsing or dehydration.

건조장치(30)는 회전드럼(12) 내부로 가열된 공기를 송풍하여 세탁물을 건조시키는 것이다. 이 건조장치(30)는 세탁조(11) 후면 쪽의 제1덕트(31) 및 제2덕트(32), 세탁조(11) 상부 쪽의 제3덕트(33) 및 제4덕트(34), 제2덕트(32) 내에 설치되는 응축용 열교환기(35), 제3덕트(33)와 제4덕트(34)의 연결부에 설치되는 송풍장치(36), 제4덕트(34) 내에 설치되는 제1히터(37)를 포함한다.The drying apparatus 30 blows air heated in the rotary drum 12 to dry the laundry. The drying apparatus 30 includes the first duct 31 and the second duct 32 on the rear side of the washing tank 11, the third duct 33 and the fourth duct 34 on the upper side of the washing tank 11, The heat exchanger 35 for condensation installed in the second duct 32, the blower 36 installed in the connection portion of the third duct 33 and the fourth duct 34, and the product installed in the fourth duct 34. One heater 37 is included.

제1덕트(31)의 입구는 세탁조(11)의 후면 하부에 연결되고, 제4덕트(34)의 출구는 세탁조(11)의 입구 쪽에 연결된다. 또 제1 내지 제4덕트(31,32,33,34)는 연속적인 공기순환유로를 형성하도록 연결된다. 이는 세탁조(11) 내부의 공기가 제1 내지 제4덕트(31,32,33,34)를 차례로 통과하여 순환할 수 있도록 한 것이다. The inlet of the first duct 31 is connected to the lower rear of the washing tank 11, the outlet of the fourth duct 34 is connected to the inlet side of the washing tank (11). The first to fourth ducts 31, 32, 33, and 34 are connected to form a continuous air circulation passage. This is to allow the air in the washing tank 11 to circulate through the first to fourth ducts (31, 32, 33, 34) in order.

송풍장치(36)는 제3덕트(33)를 통해 안내되는 공기를 흡입하여 제4덕트(34) 쪽으로 송풍하는 송풍팬(36a)과, 이 송풍팬(36a)을 회전시키도록 제4덕트(34)의 외측에 설치되는 송풍모터(36b)를 포함한다. 제1히터(37)는 세탁조(11)의 세탁물을 건조시킬 수 있도록 제4덕트(34)를 통하여 세탁조(11)로 공급되는 공기를 가열한다.The blower 36 sucks the air guided through the third duct 33 and blows it toward the fourth duct 34, and the fourth duct (not shown) rotates the blower fan 36a. And a blower motor 36b installed on the outside of 34. The first heater 37 heats the air supplied to the washing tank 11 through the fourth duct 34 so as to dry the laundry of the washing tank 11.

응축용 열교환기(35)는 도 1과 도 2에 도시한 바와 같이, 세탁조(11) 내부의 공기가 통과하는 제1공기유로(35a)와 외부의 공기가 통과하는 제2공기유로(35b)가 상호 교차하도록 된 통상의 현열교환기이다. 그리고 이러한 열교환기(35)를 수용하는 제2덕트(32)는 제1덕트(31)가 연결되는 하부의 제1입구(32a), 제3덕트(33)가 연결되는 상부의 제1출구(32b)를 구비하고, 이들과 교차하는 방향으로 외기가 유입되는 제2입구(32c), 외기가 배출되는 제2출구(32d)를 구비한다. 또 제2입구(32c) 쪽에는 외기의 송풍을 위한 외기송풍팬(38, 도 1참조)이 설치된다. 그리고 도면에 도시하지는 않았지만, 제2덕트(32)의 제2입구(32c)와 제2출구(32d)는 외기의 순환이 이루어질 수 있도록 별도의 덕트들을 통하여 본체(10)의 외부와 연통된다.1 and 2, the condensation heat exchanger 35 includes a first air passage 35a through which air in the washing tank 11 passes and a second air passage 35b through which external air passes. Is a common sensible heat exchanger which is allowed to cross each other. In addition, the second duct 32 accommodating the heat exchanger 35 may include a first inlet 32a at the lower portion to which the first duct 31 is connected and a first outlet at the upper portion to which the third duct 33 is connected. 32b), a second inlet 32c through which outside air flows in a direction crossing them, and a second outlet 32d through which outside air is discharged. At the second inlet 32c, an outside air blowing fan 38 (see Fig. 1) is provided for blowing outside air. Although not shown in the drawings, the second inlet 32c and the second outlet 32d of the second duct 32 communicate with the outside of the main body 10 through separate ducts so that circulation of outside air can be achieved.

이러한 구성은 세탁조(11)의 다습한 공기가 제1입구(32a)를 통해 제2덕트(32) 내로 유입되어 열교환기(35)의 제1공기유로(35a)를 거친 후 제1출구(32b)를 통해 제3덕트(33)로 흐르도록 하고, 차가운 외부의 공기가 제2입구(32c)를 통해 제 2덕트(32) 내로 유입되어 열교환기(35)의 제2공기유로(35b)를 통과하며 열교환을 한 후 제2출구(32d)를 통해 외부로 배출되도록 한 것이다. 그리고 열교환기(35)의 제1공기유로(35a)를 통과하는 공기 중의 수분이 응축되면서 공기의 제습이 이루어질 수 있도록 한 것이고, 이러한 순환의 반복을 통해 세탁물의 건조가 이루어지도록 한 것이다.In this configuration, the humid air of the washing tank 11 flows into the second duct 32 through the first inlet 32a, passes through the first air passage 35a of the heat exchanger 35, and then the first outlet 32b. ) To the third duct 33 and cool outside air flows into the second duct 32 through the second inlet 32c to open the second air passage 35b of the heat exchanger 35. After passing through the heat exchange is to be discharged to the outside through the second outlet (32d). And the moisture in the air passing through the first air flow path (35a) of the heat exchanger (35) is condensed to allow the dehumidification of the air is made, it is to allow the laundry to be dried through the repetition of this circulation.

또한 본 발명의 세탁기는 건조과정에서 생긴 응축수를 모았다가 스팀발생장치(50)로 공급하여 스팀을 발생시키는데 이용한다. 이는 증류수에 가까운 응축수를 이용하여 스팀을 발생시킴으로써 스팀발생장치(50) 내에 스케일이 생기는 문제를 최소화하기 위함이다. 이를 위해 제2덕트(32)의 하부에는 소정량의 물을 수용할 수 있는 응축수탱크(60)가 마련되고, 응축수탱크(60)와 제2덕트(32)의 하부는 응축수 안내관(39)을 통해 연결된다. 따라서 열교환기(35)에서 응축된 응축수는 응축수 안내관(39)을 따라 흘러내려 응축수탱크(60)에 모인다.In addition, the washing machine of the present invention collects condensate generated during the drying process and supplies the steam to the steam generator 50 to generate steam. This is to minimize the problem that the scale is generated in the steam generating device 50 by generating steam using condensed water close to distilled water. To this end, a condensate tank 60 capable of accommodating a predetermined amount of water is provided in the lower portion of the second duct 32, and the condensate tank 60 and the lower portion of the second duct 32 are condensate guide tubes 39. Is connected through. Therefore, the condensed water condensed in the heat exchanger 35 flows down along the condensate guide tube 39 and collects in the condensate tank 60.

스팀발생장치(50)는 내부에 유로(51)가 형성된 금속재질의 몸체(52)와, 몸체(52) 내부의 유로(51)를 통과하는 물을 가열하여 스팀을 발생시킬 수 있도록 몸체(52)에 매입되는 제2히터(53)를 포함한다. 그리고 스팀발생장치(50)에는 응축수탱크(60)의 물을 스팀발생장치(50)로 공급하는 스팀용 급수장치(40)와, 스팀발생장치(50)에서 생긴 스팀을 세탁조(11)로 안내하는 스팀공급관(44)이 각각 연결된다. 스팀용 급수장치(40)는 응축수탱크(60)와 스팀발생장치(50)를 연결하는 스팀용 급수관(41), 이 급수관(41)의 설치되는 급수펌프(42), 급수관(41)을 개폐하는 제3급수밸브(43)를 포함한다. 이는 제3급수밸브(43)가 개방된 상태에서 급수펌프(42)가 동작할 때 스팀발생장치(50)로 응축수탱크(60)의 물이 공급될 수 있도록 한 것이다.The steam generator 50 has a body 52 formed of a metal body 52 in which a flow path 51 is formed, and a body 52 to generate steam by heating water passing through the flow path 51 inside the body 52. The second heater 53 is embedded in the). In addition, the steam generator 50 guides the steam water supply device 40 for supplying water from the condensate tank 60 to the steam generator 50, and steam generated from the steam generator 50 to the washing tank 11. The steam supply pipe 44 is connected to each. The steam water supply device 40 opens and closes a water supply pipe 41 for connecting the condensate tank 60 and the steam generator 50, a water supply pump 42 and a water supply pipe 41 installed in the water supply pipe 41. It includes a third water supply valve 43. This is to allow the water in the condensate tank 60 to be supplied to the steam generator 50 when the feed water pump 42 operates in the state where the third feed valve 43 is opened.

응축수탱크(60)에는 응축수탱크(60) 내부의 최대설정수위(H)와 최저설정수위(L)를 각각 감지하는 수위센서(61)와, 응축수탱크(61)의 수위가 최대설정수위(H) 이상일 때 응축수를 배수시키기 위한 배수관(62)이 설치된다. 또 배수관(62)에는 배수관(62)을 개폐하는 제2배수밸브(63)가 설치된다. 또한 응축수탱크(60)의 상부에는 응축수탱크(60)의 수위가 최저설정수위(L) 미만일 때 외부의 물을 보충할 수 있도록 급수장치(20) 쪽과 연결된 제3급수관(25)이 연결된다. 제3급수관(25)은 제2급수밸브(24)에 의해 개폐된다.The condensate tank 60 has a water level sensor 61 for detecting the maximum set water level H and the lowest set water level L inside the condensate tank 60, and the water level of the condensate tank 61 is the maximum set water level H. ) Is a drain pipe 62 for draining the condensate. In addition, the drain pipe 62 is provided with a second drain valve 63 that opens and closes the drain pipe 62. In addition, a third water supply pipe 25 connected to the water supply device 20 is connected to the upper portion of the condensate tank 60 to replenish external water when the water level of the condensate tank 60 is less than the minimum set water level (L). . The third water supply pipe 25 is opened and closed by the second water supply valve 24.

도 3은 본 발명에 따른 세탁기의 제어블록도이다. 도시한 바와 같이, 본 발명에 따른 세탁기는 동작제어를 위한 신호입력부(71), 온도센서(73), 건조센서(72), 수위센서(61), 제어부(70)를 구비한다. 신호입력부(71)는 사용자가 선택하는 세탁코스, 수위선택, 세탁온도, 탈수시간, 건조여부, 스팀공급여부 등 각종 운전정보를 제어부(70)에 입력한다. 온도센서(73)는 세탁조(11) 내부의 온도를 감지하여 제어부(70)에 입력한다. 건조센서(72)는 세탁물의 건조도를 감지하고, 수위센서(61)는 응축수탱크(60)의 수위를 감지하여 제어부(70)에 입력한다.3 is a control block diagram of a washing machine according to the present invention. As shown, the washing machine according to the present invention includes a signal input unit 71, a temperature sensor 73, a drying sensor 72, a water level sensor 61, and a controller 70 for operation control. The signal input unit 71 inputs various operation information such as a washing course selected by the user, water level selection, washing temperature, dehydration time, drying or not, and steam supply to the controller 70. The temperature sensor 73 detects a temperature inside the washing tank 11 and inputs it to the controller 70. The drying sensor 72 detects the dryness of the laundry, and the water level sensor 61 detects the water level of the condensate tank 60 and inputs it to the controller 70.

제어부(70)는 입력된 운전정보 및 각종 감지정보를 토대로 구동모터(14), 제1 및 제2급수밸브(21,24), 제1배수밸브(18b), 건조용 송풍장치(36), 외기송풍팬(38), 건조용 제1히터(37), 스팀발생용 제2히터(53), 스팀용 급수을 위한 급수펌프(42), 스팀용 급수관(41)을 개폐하는 제3급수밸브(43), 응축수탱크(60) 쪽 제2배수 밸브(63) 등의 동작을 제어한다.The control unit 70 may drive the motor 14, the first and second water supply valves 21 and 24, the first drain valve 18b, the drying blower 36, based on the input operation information and various sensing information. Third air supply valve for opening and closing the air blower fan 38, the first heater 37 for drying, the second heater 53 for steam generation, the water supply pump 42 for water supply for steam, the water supply pipe 41 for steam ( 43), the operation of the second drain valve 63, etc. toward the condensate tank 60 is controlled.

다음은 이러한 세탁기의 건조를 위한 제어방법과 스팀공급을 위한 제어방법에 관하여 설명한다.Next, a control method for drying the washing machine and a control method for steam supply will be described.

건조를 위한 제어는 도 4의 흐름도와 같이 이루어진다. 즉 제어부(70)는 신호입력부(71)의 건조신호 입력에 따라 구동모터(14)를 가동시켜 회전드럼(11)의 회전이 이루어지도록 함과 동시에 건조장치(30)의 제1히터(37)와 송풍장치(30) 및 외기순환팬(38)을 가동시켜 세탁물의 건조가 이루어지도록 한다(81). 즉 제1 내지 제4덕트(31,32,33,34) 내부와 세탁조(11)에 열풍의 순환이 이루어지면서 세탁물의 건조가 이루어지도록 한다. 이때 열교환기(35)에는 응축수가 생기고, 이 응축수는 응축수 안내관(39)을 따라 흘러내려 응축수탱크(60)에 집수된다.Control for drying is performed as in the flowchart of FIG. 4. That is, the control unit 70 operates the driving motor 14 according to the drying signal input of the signal input unit 71 so that the rotation drum 11 is rotated and at the same time the first heater 37 of the drying apparatus 30. And by operating the blower 30 and the air circulation fan 38 to dry the laundry is made (81). That is, the hot air is circulated in the first to fourth ducts 31, 32, 33, and 34 and the washing tank 11 to dry the laundry. At this time, the heat exchanger 35 generates condensate, which flows down the condensate guide tube 39 and is collected in the condensate tank 60.

또 건조가 이루어지는 동안은 수위센서(61)를 통해 응축수탱크(60)의 수위를 감지하고(82), 응축수탱크(60)의 수위가 최대설정수위(H) 이상인지를 판단한다(83). 그리고 응축수탱크(60)의 수위가 최대설정수위(H) 이상으로 판단되면, 제2배수밸브(63)를 개방하여 응축수를 배수시킨다(84). 만약 응축수탱크(60)의 수위가 최대설정수위(H) 미만인 것으로 판단되면 제2배수밸브(63)를 폐쇄시킨다(85). 이는 건조과정에서 응축수탱크(60)의 수위가 최대설정수위(H) 이상이면 그 이상의 응축수를 외부로 배출시키고, 응축수탱크(60)의 수위가 최대설정수위(H) 미만이면 제2배수밸브(63)를 폐쇄시켜 응축수탱크(60)에 응축수를 모으기 위함이다.In addition, while drying is performed, the water level sensor 61 detects the water level of the condensate tank 60 (82), and determines whether the water level of the condensate tank 60 is above the maximum set water level (H) (83). When the water level of the condensate tank 60 is determined to be greater than or equal to the maximum set water level H, the second drain valve 63 is opened to drain the condensate (84). If it is determined that the water level of the condensate tank 60 is less than the maximum set water level (H), the second drain valve 63 is closed (85). When the water level of the condensate tank 60 is above the maximum set water level (H) during the drying process, more condensate is discharged to the outside, and if the water level of the condensate tank 60 is less than the maximum set water level (H), the second drain valve ( Closed 63) to collect the condensate in the condensate tank (60).

또 건조가 이루어지는 동안은 건조센서(72)를 통해 세탁물의 건조도를 감지하고(86), 건조가 충분한지 여부도 판단한다(87). 건조가 충분한 것으로 판단되면 건조를 종료하고, 아니면 위와 같은 건조제어를 반복한다.In addition, while drying is performed, the drying degree of the laundry is sensed through the drying sensor 72 (86), and it is determined whether the drying is sufficient (87). If it is determined that the drying is sufficient, the drying is terminated, or the above drying control is repeated.

한편, 세탁조(11)에 스팀을 공급하는 동작은 세탁행정 전 또는 세탁행정 도중에 세탁수 및 세탁물의 가열을 위해 수행하거나 건조 후 세탁물의 구김을 줄이기 위해 수행될 수 있다. 이는 사용자의 선택에 따른다. On the other hand, the operation of supplying steam to the washing tank 11 may be performed for heating the washing water and laundry before or during the washing stroke or to reduce the wrinkles of the laundry after drying. This is at the user's option.

스팀공급을 위한 제어는 도 5의 흐름도와 같이 이루어진다. 즉 제어부(70)는 신호입력부(71)의 스팀공급신호 입력에 따라 응축수탱크(60)의 수위센서(61)를 통해 건조과정에서 모아진 응축수의 수위를 감지하고(91), 수위가 최저설정수위(L) 이상인지를 판단한다(92). 여기서 최저설정수위(L)란 응축수탱크(60)에 물이 없는 상태가 아니라, 응축수탱크(60)에 소정량의 물이 담겨 있어 이 물을 이용하여 스팀을 발생시킬 수 있는 정도의 수위이다.Control for the steam supply is made as shown in the flowchart of FIG. That is, the control unit 70 detects the water level of the condensate collected during the drying process through the water level sensor 61 of the condensate tank 60 according to the steam supply signal input from the signal input unit 71 (91), and the water level is the lowest set water level. It is determined whether or not (L) or more (92). Here, the lowest set water level (L) is not a state in which there is no water in the condensate tank 60, but a level of water in which a predetermined amount of water is contained in the condensate tank 60 to generate steam using this water.

응축수탱크(60)의 수위가 최저설정수위(L) 이상이면, 응축수탱크(60)의 내부의 응축수로 스팀을 발생시킬 수 있으므로, 제2급수밸브(24)를 폐쇄시켜 응축수탱크(60) 쪽으로 외부의 물이 보충되지 않도록 한다(93). 그러나 응축수탱크(60)의 수위가 최저설정수위(L) 미만이면 제2급수밸브(24)를 개방하여 외부 급수원으로부터 응축수탱크(60)로 물이 공급되도록 한다(94).If the water level of the condensate tank 60 is above the minimum set water level (L), since the steam can be generated by the condensate inside the condensate tank 60, by closing the second water supply valve 24 toward the condensate tank 60 The external water is not replenished (93). However, when the water level of the condensate tank 60 is less than the minimum set water level (L), the second water supply valve 24 is opened so that water is supplied from the external water supply to the condensate tank 60 (94).

응축수탱크(60)에 최저설정수위(L) 이상의 물이 존재하면, 스팀발생장치(50)의 제2히터(53)를 가동시킨다(95). 또 스팀용 급수장치(40)의 급수펌프(42)를 가동시키고 제3급수밸브(43)를 개방시켜 응축수탱크(60)의 응축수가 스팀발생장치(50)로 공급되어 스팀이 발생하도록 한다(96). 즉 본 발명은 응축수탱크(60)에 응축수가 최저설정수위(L) 이상 존재하는 경우 증류수에 가까운 응축수 만을 스팀발생장 치(50)에 공급하기 때문에 스팀발생장치(50) 내에 스케일이 생기는 문제를 최소화할 수 있다. 물론 응축수탱크(60)의 수위가 최저설정수위(L) 미만인 경우에는 제2급수밸브(24)의 개방을 통해 외부의 물이 응축수탱크(60)에 보충되므로 이때도 스팀발생장치(50)로 물을 공급할 수 있다.When water above the lowest set water level L exists in the condensate tank 60, the second heater 53 of the steam generator 50 is operated (95). In addition, the water supply pump 42 of the steam water supply device 40 is operated and the third water supply valve 43 is opened so that the condensed water of the condensate tank 60 is supplied to the steam generator 50 to generate steam ( 96). That is, in the present invention, when condensate is present in the condensate tank 60 or more than the minimum set level (L), only the condensed water close to the distilled water is supplied to the steam generating device 50. It can be minimized. Of course, when the water level of the condensate tank 60 is less than the minimum set water level (L), the external water is replenished to the condensate tank 60 through the opening of the second water supply valve 24, so the steam generator 50 Water can be supplied.

스팀발생장치(50)에 의해 생기는 스팀은 스팀공급관(44)을 통해 세탁조(11) 내부로 공급된다. 이러한 스팀공급이 이루어지는 과정에서 제어부(70)는 세탁조(11)의 온도센서(73)를 통해 세탁조(11)의 온도를 감지하고(97), 세탁조(11) 내부가 사용자가 미리 설정한 가열온도까지 충분히 가열되었는지 또는 스팀공급을 시작한 시점으로부터 경과된 시간이 사용자가 미리 설정한 스팀공급시간을 초과하였는지를 판단한다(98). 이러한 판단(98)은 사용자가 선택적으로 입력한 스팀공급조건(세탁조의 가열온도 또는 스팀공급시간)에 따른다.The steam generated by the steam generator 50 is supplied into the washing tank 11 through the steam supply pipe 44. In the process of supplying the steam, the control unit 70 detects the temperature of the washing tank 11 through the temperature sensor 73 of the washing tank 11 (97), and the heating temperature preset by the user in the washing tank 11. It is determined whether it is sufficiently heated up to or until the time elapsed from the start of steam supply exceeds the steam supply time preset by the user (98). This determination 98 depends on the steam supply conditions (heating temperature of the washing tank or steam supply time) selectively input by the user.

세탁조(11)의 온도가 설정한 온도 이상으로 가열되었거나 설정한 스팀공급시간을 초과한 경우에는 스팀공급을 종료하고, 아니면 위와 같은 스팀공급제어를 반복한다.When the temperature of the washing tank 11 is heated above the set temperature or exceeds the set steam supply time, the steam supply is terminated, or the above steam supply control is repeated.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 세탁기는 세탁물의 건조과정에서 생기는 응축수를 스팀발생장치로 공급하여 스팀을 발생시키기 때문에 스팀발생장치에 스케일이 생기는 문제를 최소화할 수 있는 효과가 있다.As described above in detail, since the washing machine according to the present invention generates steam by supplying condensed water generated in the drying process of the laundry to the steam generating device, there is an effect of minimizing the problem of scale generation in the steam generating device.

또한 본 발명은 응축수탱크에 채워진 응축수가 부족할 경우 외부의 급수를 통해 응축수탱크에 물을 보충할 수 있는 효과가 있다.In addition, the present invention has the effect of replenishing water in the condensate tank through the external water supply when the condensate filled in the condensate tank is insufficient.

Claims (8)

세탁조 내부로 가열된 공기를 송풍시키고, 상기 세탁조를 통과한 다습한 공기와 차가운 외부의 공기가 열교환을 하는 열교환기를 포함하는 건조장치;A drying apparatus including a heat exchanger for blowing heated air into the washing tank and exchanging heat between the humid air passing through the washing tank and the cold outside air; 상기 세탁조로 스팀을 공급하는 스팀발생장치;A steam generator for supplying steam to the washing tank; 세탁물의 건조 과정 중 상기 열교환기에서 발생된 응축수가 집수되는 응축수 탱크;A condensate tank for collecting condensate generated in the heat exchanger during a drying process of laundry; 상기 응축수 탱크의 물을 상기 스팀발생장치로 공급하는 스팀용 급수장치;A water supply device for steam supplying the condensate tank water to the steam generator; 상기 응축수 탱크에 설치되고, 상기 응축수 탱크 내부의 수위를 감지하는 수위센서;A water level sensor installed in the condensate tank and detecting a water level inside the condensate tank; 외부의 급수원으로부터 상기 응축수 탱크로 물을 공급하고, 상기 외부 급수장치와 상기 응축수 탱크를 연결하는 급수관을 포함하는 외부 급수장치;An external water supply device for supplying water to the condensate tank from an external water supply source, and including a water supply pipe connecting the external water supply device to the condensate tank; 상기 응축수 탱크에 연결되고, 상기 응축수 탱크의 수위가 설정수위 이상일 때 상기 응축수 탱크 내의 응축수를 배수시키기 위한 배수관; 및A drain pipe connected to the condensate tank and configured to drain condensate in the condensate tank when a level of the condensate tank is equal to or higher than a set level; And 상기 배수관을 개폐하는 배수밸브;를 포함하고,Includes; drain valve for opening and closing the drain pipe, 상기 스팀발생장치는, 세탁 행정 전, 세탁 행정 중 또는 건조 후 상기 세탁조로 스팀을 공급할 수 있는 세탁기.The steam generator is a washing machine that can supply steam to the washing tank before, during the washing stroke or after drying. 제1항에 있어서,The method of claim 1, 상기 스팀용 급수장치는 상기 응축수탱크와 상기 스팀발생장치를 연결하는 제2급수관과, 상기 제2급수관에 설치되는 급수펌프와, 상기 제2급수관을 개폐하는 급수밸브를 포함하는 세탁기.The steam water supply device includes a second water supply pipe connecting the condensate tank and the steam generator, a water supply pump installed in the second water supply pipe, and a water supply valve to open and close the second water supply pipe. 제1항에 있어서,The method of claim 1, 상기 외부 급수장치는 상기 응축수탱크의 수위가 최저설정수위 미만일 때 상기 응축수탱크 쪽으로 외부의 물을 공급하고, 상기 응축수탱크의 수위가 최대설정수위 이상일 때 상기 배수밸브가 개방되어 상기 응축수 탱크 내의 물이 배수되는 세탁기.The external water supply device supplies external water toward the condensate tank when the level of the condensate tank is less than the minimum set level, and when the level of the condensate tank is above the maximum set level, the drain valve is opened so that the water in the condensate tank Washing machine drained. 세탁조 내부로 가열된 공기를 송풍시키고, 상기 세탁조를 통과한 다습한 공기와 차가운 외부의 공기가 열교환을 하는 열교환기를 포함하는 건조장치; 상기 세탁조로 스팀을 공급하는 스팀발생장치; 세탁물의 건조 과정 중 상기 열교환기에서 발생된 응축수가 집수되는 응축수 탱크; 상기 응축수 탱크의 물을 상기 스팀발생장치로 공급하는 스팀용 급수장치; 상기 응축수 탱크에 설치되고, 상기 응축수 탱크 내부의 수위를 감지하는 수위센서; 외부의 급수원으로부터 상기 응축수 탱크로 물을 공급하고, 상기 외부 급수장치와 상기 응축수 탱크를 연결하는 급수관을 포함하는 외부 급수장치; 상기 응축수 탱크에 연결되고, 상기 응축수 탱크의 수위가 설정수위 이상일 때 상기 응축수 탱크 내의 응축수를 배수시키기 위한 배수관; 및 상기 배수관을 개폐하는 배수밸브;를 포함하고, 상기 스팀발생장치는, 세탁 행정 전, 세탁 행정 중 또는 건조 후 상기 세탁조로 스팀을 공급할 수 있는 세탁기의 제어방법에 있어서,A drying apparatus including a heat exchanger for blowing heated air into the washing tank and exchanging heat between the humid air passing through the washing tank and the cold outside air; A steam generator for supplying steam to the washing tank; A condensate tank for collecting condensate generated in the heat exchanger during a drying process of laundry; A water supply device for steam supplying the condensate tank water to the steam generator; A water level sensor installed in the condensate tank and detecting a water level inside the condensate tank; An external water supply device for supplying water to the condensate tank from an external water supply source, and including a water supply pipe connecting the external water supply device to the condensate tank; A drain pipe connected to the condensate tank and configured to drain condensate in the condensate tank when a level of the condensate tank is equal to or higher than a set level; And a drain valve for opening and closing the drain pipe, wherein the steam generator includes: a control method of a washing machine capable of supplying steam to the washing tank before, during, or after washing. 건조 행정시 응축수 탱크의 수위를 감지하는 단계; 및Sensing the level of the condensate tank during the drying stroke; And 상기 응축수 탱크의 수위가 최대설정수위 이상이면 상기 응축수 탱크의 배수구를 개방시켜 물을 배수시키는 단계;를 포함하는 세탁기의 제어방법.And draining the water by opening the drain hole of the condensate tank when the water level of the condensate tank is greater than or equal to the maximum set level. 제4항에 있어서, 5. The method of claim 4, 상기 응축수탱크의 수위가 최대설정수위 미만이면 상기 응축수탱크의 배수구를 폐쇄시키는 것을 특징으로 하는 세탁기의 제어방법.If the water level of the condensate tank is less than the maximum set water level control method of the washing machine characterized in that for closing the drain port of the condensate tank. 세탁조 내부로 가열된 공기를 송풍시키고, 상기 세탁조를 통과한 다습한 공기와 차가운 외부의 공기가 열교환을 하는 열교환기를 포함하는 건조장치; 상기 세탁조로 스팀을 공급하는 스팀발생장치; 세탁물의 건조 과정 중 상기 열교환기에서 발생된 응축수가 집수되는 응축수 탱크; 상기 응축수 탱크의 물을 상기 스팀발생장치로 공급하는 스팀용 급수장치; 상기 응축수 탱크에 설치되고, 상기 응축수 탱크 내부의 수위를 감지하는 수위센서; 외부의 급수원으로부터 상기 응축수 탱크로 물을 공급하고, 상기 외부 급수장치와 상기 응축수 탱크를 연결하는 급수관을 포함하는 외부 급수장치; 상기 응축수 탱크에 연결되고, 상기 응축수 탱크의 수위가 설정수위 이상일 때 상기 응축수 탱크 내의 응축수를 배수시키기 위한 배수관; 및 상기 배수관을 개폐하는 배수밸브;를 포함하고, 상기 스팀발생장치는, 세탁 행정 전, 세탁 행정 중 또는 건조 후 상기 세탁조로 스팀을 공급할 수 있는 세탁기의 제어방법에 있어서,A drying apparatus including a heat exchanger for blowing heated air into the washing tank and exchanging heat between the humid air passing through the washing tank and the cold outside air; A steam generator for supplying steam to the washing tank; A condensate tank for collecting condensate generated in the heat exchanger during a drying process of laundry; A water supply device for steam supplying the condensate tank water to the steam generator; A water level sensor installed in the condensate tank and detecting a water level inside the condensate tank; An external water supply device for supplying water to the condensate tank from an external water supply source, and including a water supply pipe connecting the external water supply device to the condensate tank; A drain pipe connected to the condensate tank and configured to drain condensate in the condensate tank when a level of the condensate tank is equal to or higher than a set level; And a drain valve for opening and closing the drain pipe, wherein the steam generator includes: a control method of a washing machine capable of supplying steam to the washing tank before, during, or after washing. 상기 세탁조로 스팀공급을 수행할 때 상기 응축수탱크의 수위를 감지하고,When the steam supply to the washing tank detects the water level of the condensate tank, 상기 응축수탱크의 수위가 최저설정수위 이상이면 상기 스팀발생장치를 동작시키면서 스팀용 급수장치를 통해 상기 응축수탱크의 물을 상기 스팀발생장치로 공급하도록 제어하는 것을 특징으로 하는 세탁기의 제어방법.And controlling the water supply of the condensate tank to the steam generator through a water supply device for steam while operating the steam generator when the water level of the condensate tank is equal to or higher than a minimum predetermined level. 제6항에 있어서,The method of claim 6, 상기 응축수탱크의 수위가 최저설정수위 미만이면 상기 외부 급수장치를 통해 상기 응축수탱크에 물이 공급되도록 제어하는 것을 특징으로 하는 세탁기의 제어방법.And controlling the water supply to the condensate tank through the external water supply device when the water level of the condensate tank is less than the minimum predetermined level. 제7항에 있어서,The method of claim 7, wherein 상기 응축수탱크의 수위가 최저설정수위 이상이면 상기 외부급수장치에 의한 상기 응축수탱크의 급수가 중단되도록 제어하는 것을 특징으로 하는 세탁기의 제어방법.And controlling the water supply of the condensate tank by the external water supply device to be stopped when the water level of the condensate tank is equal to or higher than a minimum predetermined level.
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