KR100751780B1 - Method for removing bubble of a drum type washing machine - Google Patents

Method for removing bubble of a drum type washing machine Download PDF

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Publication number
KR100751780B1
KR100751780B1 KR1020060016873A KR20060016873A KR100751780B1 KR 100751780 B1 KR100751780 B1 KR 100751780B1 KR 1020060016873 A KR1020060016873 A KR 1020060016873A KR 20060016873 A KR20060016873 A KR 20060016873A KR 100751780 B1 KR100751780 B1 KR 100751780B1
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South Korea
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drum
washing machine
drive motor
rpm
dehydration
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KR1020060016873A
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Korean (ko)
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정희석
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주식회사 대우일렉트로닉스
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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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/06—Arrangements for preventing or destroying scum
    • 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
    • D06F37/30—Driving arrangements 
    • D06F37/304—Arrangements or adaptations of electric motors

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

A method for removing bubbles of a drum type washing machine is provided to reduce load of a rotation of a drum by efficiently removing the bubbles inside the drum during spin-drying. A method for removing bubbles of a drum type washing machine includes the steps of: outputting a detecting signal for the bubbles inside of a drum by a bubble detector; controlling a bubble removal process through an exhaust pump and a driving motor according to the detecting signal by the micro computer(140); and reducing a pressure difference between a water inlet and a water outlet for smoothly removing the bubbles by turning on/off the exhaust pump(130) based on changes of an RPM(Revolution Per Minute) of the driving motor(119).

Description

드럼 세탁기의 거품제거방법{Method for removing bubble of a drum type washing machine}Method for removing bubble of a drum type washing machine

도 1 은 일반적인 드럼 세탁기의 개략적인 구성도. 1 is a schematic configuration diagram of a general drum washing machine.

도 2 는 본 발명에 따른 드럼 세탁기 거품제거장치의 블럭 구성도.Figure 2 is a block diagram of a drum washing machine defoamer according to the present invention.

도 3 은 본 발명의 제1실시예에 따른 드럼 세탁기 거품제거방법의 밸런스 탈수행정을 나타낸 도면.3 is a view showing a balance dehydration stroke of the drum washing machine foam removing method according to a first embodiment of the present invention.

도 4 는 본 발명의 제2실시예에 따른 드럼 세탁기 거품제거방법의 본 탈수행정을 나타낸 도면.4 is a view showing the present dehydration stroke of the drum washing machine foam removing method according to a second embodiment of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for main parts of the drawings>

119: 구동모터 130: 배수펌프119: drive motor 130: drain pump

140: 마이컴 150: 거품감지부140: microcomputer 150: bubble detection unit

본 발명은 드럼 세탁기에 관한 것으로서, 더욱 상세하게는 드럼 세탁기의 탈수시 드럼 내 거품을 제거할 수 있도록 한 드럼 세탁기 거품 제거 방법에 관한 것이다. The present invention relates to a drum washing machine, and more particularly, to a drum washing machine foam removing method to remove the bubbles in the drum during dehydration of the drum washing machine.

일반적으로, 세탁기는 기 설정된 알고리즘에 따라, 세탁, 헹굼, 탈수 등의 과정을 거쳐 오염된 세탁물로부터 오염물질을 제거하는 기기로서, 회전날개, 외조 또는 내조의 수평방향 회전을 이용한 전자동 세탁기와 드럼의 수직 방향 회전을 이용한 드럼 세탁기로 크게 구분된다. In general, a washing machine is a device that removes contaminants from contaminated laundry through a process such as washing, rinsing, and dehydrating, according to a predetermined algorithm. It is divided into drum washing machine using vertical rotation.

특히, 드럼 세탁기는 세제와 세탁수 및 세탁물이 드럼 내에 투입된 상태에서 구동 모터의 구동력을 전달받아 회전하는 드럼과 세탁물과의 마찰력을 이용하여 세탁을 행하는 방식으로서, 세탁물의 손상이 적고 세탁물이 잘 엉키지 않으며 두드리고 비벼빠는 세탁효과를 낼 수 있다. In particular, the drum washing machine is a method of washing by using the friction force between the rotating drum and the laundry by receiving the driving force of the drive motor in the state in which detergent, washing water and laundry are put into the drum, the laundry is less damaged and the laundry is tangled well Knocking and rubbing can have a laundry effect.

도 1 은 일반적인 드럼 세탁기의 개략적인 구성도이다.1 is a schematic configuration diagram of a general drum washing machine.

종래의 드럼 세탁기(1)는 드럼 세탁기(1)의 외형을 형성하는 하우징(13)와 하우징(13)의 내부에 설치되는 터브(25), 터브(25) 내부에 회전가능하게 설치되어 구동모터(15)의 구동에 따라 회전함과 더불어 세탁조의 기능을 수행하는 드럼(27), 드럼(27)의 후방에 설치되어 드럼(27)을 회전시키는 구동모터(15), 가열된 공기를 터브(25) 안으로 공급하는 건조 덕트(23), 드럼(25) 내부로 세탁물을 투입할 수 있 도록 개폐되는 도어(21), 터브(25)와 연결되어 드럼(27) 내부 세탁물에서 배출된 물이 외부로 배출되도록 하는 배수관(30)과 배수펌프(31), 건조행정시 발생되는 수분을 제거하도록 응축수를 공급하는 응축덕트(19)로 이루어진다. The conventional drum washing machine 1 is rotatably installed in the tub 25 and the tub 25 installed inside the housing 13 and the housing 13 forming the outer shape of the drum washing machine 1 and the driving motor. A drum 27 that rotates along with the driving of the 15 and performs a function of a washing tub, a driving motor 15 installed at the rear of the drum 27 to rotate the drum 27, and a tub (heated air) 25) The water discharged from the laundry inside the drum 27 is connected to the drying duct 23 and the door 21 that opens and closes so that the laundry can be introduced into the drum 25, and the tub 25. Drain pipe 30 and the drain pump 31 to be discharged to the, consists of a condensation duct 19 for supplying condensate water to remove the moisture generated during the drying stroke.

이러한 드럼 세탁기는 세탁행정을 수행하는 과정에서 세탁물의 상승 및 하강에 의해 많은 거품이 발생하게 되는데, 거품 발생시 거품의 유체저항에 의해 드럼의 회전이 방해되어 과부하가 걸리게 되므로, 이 거품을 제거하기 위한 여러가지 방법 및 장치가 개시되어 있다. The drum washing machine generates a lot of bubbles due to the rising and falling of the laundry in the process of carrying out the washing stroke. When the foam is generated, the rotation of the drum is disturbed due to the fluid resistance of the foam, and thus the foam washing machine is removed. Various methods and apparatus are disclosed.

이는 탈수시 드럼(27)이 회전하면서 배수펌프(31)의 토출부(34)와 입수부(33)의 기압차가 커지기 때문인데, 구동모터(15)의 RPM이 상승하게 되면 기압차가 더욱 벌어져 더욱더 거품이 배출되지 않게 된다.This is because when the drum 27 rotates, the pressure difference between the discharge part 34 and the water inlet part 33 of the drain pump 31 increases, and when the RPM of the driving motor 15 rises, the pressure difference increases further. Bubbles do not come out.

이에 따라, 거품 제거를 위한 여러 장치와 방법이 제시되었는데, 예를 들어 헹굼행정을 반복적으로 수행하는 경우엔 소비전력이 많고 시간이 많이 소요되며, 또한 거품이 배출되지 못하는 경우가 많아 결국 거품이 그대로 드럼 밑에 남아 있으면서 세탁수만 배출되는 경우가 빈번하게 발생하였다. Accordingly, various apparatuses and methods for removing bubbles have been proposed. For example, when the rinsing cycle is repeatedly performed, power consumption is high and time consuming, and bubbles are often not discharged. Frequently, only the wash water was discharged while remaining under the drum.

본 발명은 전술한 문제점을 해결하기 위해 안출된 것으로서, 드럼 세탁기의 탈수시 드럼과 연결된 배수관의 입수부와 토출부의 기압차를 제거하여 드럼 내부의 거품을 일괄적으로 제거할 수 있도록 한 드럼 세탁기 거품 제거 방법을 제거하는 데 그 목적이 있다.The present invention has been made to solve the above-described problems, the drum washing machine foam to remove the pressure in the inlet and outlet of the drain pipe connected to the drum when the drum washing machine dewatering to collectively remove the foam inside the drum The purpose is to eliminate the removal method.

전술한 목적을 달성하기 위해 안출된 본 발명의 구성은 다음과 같다. 본 발명은 세탁행정시 구동모터의 구동에 의해 드럼 내부에 발생된 거품을 탈수행정시 상기 드럼과 연통되게 설치되는 배수관을 통해 외부로 배출하는 드럼 세탁기의 거품제거방법에 있어서, 상기 구동모터의 rpm이 변동하는 지를 판단하는 단계, 및 상기 구동모터의 rpm이 상승하면 상기 배수펌프를 온시키고, 상기 구동모터의 rpm이 하강하면 상기 배수펌프를 오프시켜 상기 배수관의 입수부와 토출부의 기압차를 감소시키는 단계를 포함하는 것을 특징으로 한다.
상기 탈수행정의 본 탈수 전에 상기 구동모터의 밸런스를 조정하는 상기 탈수행정의 밸런스 탈수시엔 상기 구동모터를 밸런스 조정 전 구동범위 내에서 최대 rpm으로 구동하는 것을 특징으로 한다.The configuration of the present invention devised to achieve the above object is as follows. The present invention provides a foam washing method of a drum washing machine for discharging the bubbles generated in the drum by driving the driving motor during the washing stroke to the outside through a drain pipe installed in communication with the drum during the dehydration operation, rpm of the drive motor Determining whether this fluctuates, and if the rpm of the drive motor rises, the drain pump is turned on, and if the rpm of the drive motor falls, the drain pump is turned off to reduce the air pressure difference between the inlet and outlet of the drain pipe. It characterized in that it comprises a step of.
When the dehydration of the dehydration stroke to adjust the balance of the drive motor before the dehydration stroke of the dehydration stroke is characterized in that the drive motor is driven at the maximum rpm within the drive range before the balance adjustment.

삭제delete

상기 구동모터의 밸런스를 조정하는 상기 탈수행정의 밸런스 탈수 완료 후 수행되는 상기 탈수행정의 본 탈수시엔 상기 구동모터의 rpm증가 개시 후 소정 시간이 경과한 시점에서 상기 배수펌프를 온시키고 상기 소정 시간이 경과한 후 상기 구동모터의 rpm이 유지되면 상기 배수펌프를 오프시키는 것을 특징으로 한다.When dehydration of the dehydration stroke performed after the balance dehydration of the dehydration stroke that adjusts the balance of the drive motor is completed, the drainage pump is turned on when a predetermined time elapses after the rpm increase of the drive motor starts. When the rpm of the drive motor is maintained after the elapsed is characterized in that the drain pump off.

이하에서는 본 발명의 실시예를 첨부된 도면을 참조하여 상세하게 설명한다. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2 는 본 발명에 따른 드럼 세탁기 거품제거장치의 블럭 구성도이고, 도 3 은 본 발명의 제1실시예에 따른 드럼 세탁기 거품제거방법의 밸런스 탈수행정을 나 타낸 도면이며, 도 4 는 본 발명의 제2실시예에 따른 드럼 세탁기 거품제거방법의 본 탈수행정을 나타낸 도면이다. Figure 2 is a block diagram of a drum washing machine defoaming apparatus according to the present invention, Figure 3 is a view showing a balance dehydration stroke of the drum washing machine defoaming method according to a first embodiment of the present invention, Figure 4 is a present invention 2 is a view showing the present dehydration stroke of the drum washing machine foam removing method according to the second embodiment of the present invention.

참고로, 본 실시예에서는 종래의 기술과 동일한 부분에 대해서는 동일한 도면부호를 사용하고, 그 상세한 설명은 생략한다.For reference, in the present embodiment, the same reference numerals are used for the same parts as in the prior art, and detailed description thereof will be omitted.

본 발명에 따른 드럼 세탁기의 거품제거장치는 배수관을 통해 물을 배수시키는 배수펌프의 입수부와 토출부 사이의 기압차를 감소시키는 것으로서, 도 2 에 도시된 바와 같이, 드럼(27)을 회전시키는 구동모터(15)와 드럼(27) 내부의 세탁수를 배수관(30)를 통해 외부로 배출하는 배수펌프(31)를 구비하고, 드럼 내부의 거품을 감지하는 거품감지부(60), 및 본 발명의 거품 제거장치를 전반적으로 제어하는 마이컴(70)을 포함하여 이루어진다. Defoaming device of the drum washing machine according to the present invention is to reduce the pressure difference between the inlet and outlet of the drain pump for draining the water through the drain pipe, as shown in Figure 2, to rotate the drum 27 A drive motor 15 and a drain pump 31 for discharging the washing water in the drum 27 to the outside through the drain pipe 30, the foam detecting unit 60 for detecting the foam in the drum, and the present It comprises a micom 70 for controlling the overall bubble removing device of the invention.

마이컴(140)은 거품감지부(60)가 드럼(27) 내부의 거품을 감지하여 감지신호를 출력하면, 이 감지신호에 따라 헹굼행정시 상기한 배수펌프(31), 및 구동모터(15)를 통해 거품 제거 행정을 제어한다.The microcomputer 140 detects the foam inside the drum 27 and outputs a detection signal. When the rinsing stroke is performed according to the detection signal, the micro pump 140 and the driving motor 15 are provided. Control the bubble removal stroke through.

통상적으로 드럼(27)이 고속으로 회전할 때 드럼(27) 저면에 있는 거품이 드럼(27) 내로 이동하지 않고 마치 정지시와 같은 거동을 하기 때문에 배수관(31)의 입수부(33)와 토출부(34) 사이의 기압차가 크게 발생하게 된다. 따라서, 구동모터(15)의 rpm이 증가할수록 이러한 기압차가 더 커져 거품이 더욱 더 빠지지 않게 된다. In general, when the drum 27 rotates at a high speed, the foam on the bottom of the drum 27 does not move into the drum 27, and acts as if it is stopped, so that the water inlet 33 and the discharge portion of the drain pipe 31 are discharged. The pressure difference between the parts 34 is large. Therefore, as the rpm of the driving motor 15 increases, the air pressure difference becomes larger so that the bubbles do not fall further.

따라서, 마이컴(70)은 상기한 입수부(33)와 토출부(34) 사이의 기압차를 감소시켜 거품이 원활히 제거될 수 있도록 구동모터(15)의 rpm의 변동에 따라 배수펌 프(15)을 온/오프시킨다. Therefore, the microcomputer 70 reduces the pressure difference between the water inlet 33 and the air outlet 34 so that the bubbles can be smoothly removed so that the drain pump 15 changes in accordance with the rpm of the drive motor 15. ) On / off.

통상적으로, 탈수행정은 구동모터(15)의 밸런스를 조정하기 위한 밸런스 탈수와 본탈수로 나누어지는 바, 먼저 밸런스 탈수구간에서는 도 3 에 도시된 바와 같이, 구동모터(15) 구동시 rpm 차이를 밸런스 탈수시 구동모터(119)의 구동범위 내에서 최대로 하고, rpm 상승시엔 배수펌프(31)를 온시키며 rpm 하강시엔 배수펌프(130)를 오프시키는 과정을 반복적으로 수행한다. Typically, the dehydration stroke is divided into a balance dehydration and a main dehydration for adjusting the balance of the driving motor 15. First, in the balance dehydration section, as shown in FIG. 3, the rpm difference is driven when the driving motor 15 is driven. When the balance is dewatered, the driving motor 119 is maximized within the driving range, and when the rpm is increased, the drain pump 31 is turned on, and when the rpm is lowered, the drain pump 130 is repeatedly turned off.

여기서, 밸런스 탈수시 구동모터(15)의 구동범위내에서의 최대로 함은 밸런스 탈수가 구동모터(15)의 밸런스를 조정하기 위한 것이므로, 이 밸런스 조정이 완료되기 전 구동할 수 있는 rpm의 범위 내에서의 최대 rpm을 의미한다.Here, the maximum value within the drive range of the drive motor 15 when the balance is dewatered is to adjust the balance of the drive motor 15, so that the range of rpm that can be driven before the balance adjustment is completed. It means the maximum rpm in the inside.

예를 들어, 밸런스 조정시에 구동모터(15)의 최대 rpm은 용량 6㎏의 드럼 세탁기의 경우엔 약 400~450rpm정도가 되고, 용량 13㎏의 드럼 세탁기의 경우엔 약 250~300rpm정도가 된다. 따라서, 최대 rpm 은 각 드럼 세탁기의 용량에 따라서 다르게 적용될 수 있다.For example, at the time of balance adjustment, the maximum rpm of the drive motor 15 is about 400 to 450 rpm for a drum washing machine with a capacity of 6 kg and about 250 to 300 rpm for a drum washing machine with a capacity of 13 kg. . Therefore, the maximum rpm can be applied differently according to the capacity of each drum washing machine.

다음으로, 본 탈수시 마이컴(70)은 배수펌프(31)를 온/오프시키는데, 도 4 에 도시된 바와 같이, 구동모터(15)의 rpm 상승 개시 후, 소정 시간 경과하면, 배수펌프(31)를 온시키고, 구동모터(15)의 rpm이 유지되면 배수펌프(130)를 오프시킨다. 또한, 구동모터(15)의 rpm 유지기간이 경과하고 다시 rpm이 증가하면 역시 소정시간이 경과한 후, 배수펌프(31)를 온시킨다. Next, upon dehydration, the microcomputer 70 turns the drain pump 31 on and off. As shown in FIG. 4, after a predetermined time has elapsed after the start of the rpm increase of the driving motor 15, the drain pump 31. ) Is turned on and the drain pump 130 is turned off when the rpm of the driving motor 15 is maintained. In addition, if the rpm maintenance period of the drive motor 15 elapses and the rpm increases again, after a predetermined time elapses, the drain pump 31 is turned on.

여기서, 구동모터(119)의 rpm 증가 개시 후, 소정시간이 경과한 후에 배수펌프(130)를 구동시키는 것은 배수량에 의한 드럼(115) 내부의 압력이 충분히 증가할 수 있는 시간을 둠으로써, 압력이 충분이 증가한 후에 배수펌프(130)를 구동시켜 압력 제거시 거품이 일괄적으로 제거될 수 있도록 하기 위함이다. Here, the driving of the drainage pump 130 after a predetermined time has elapsed after the start of the rpm increase of the driving motor 119 has allowed a sufficient time for the pressure inside the drum 115 to increase due to the amount of drainage. After the increase is sufficient to drive the drain pump 130 so that the bubbles can be removed in a batch when the pressure is removed.

따라서, 본 발명에 따른 거품 제거방법은 밸런스 탈수와 본 탈수로 구분하고, 밸런스 탈수시엔 구동모터(119)의 허용가능한 구동범위 내에서 최대 rpm으로 구동시키고, 이 rpm 상승과 하강시 배수펌프(130)를 온/오프시키며, 본 탈수시엔 구동모터(119)의 rpm 상승 개시 후 소정시간이 경과한 후에 배수펌프(130)를 온시켰다가 rpm이 유지되면 배수펌프(130)를 오프시킴으로써, 거품이 충분히 제거될 수 있도록 한다.Therefore, the bubble removing method according to the present invention is divided into the balance dehydration and the main dehydration, and when the balance dehydration is driven at the maximum rpm within the allowable drive range of the drive motor 119, the drain pump 130 during the rpm rise and fall ) Is turned on and off, and when the dehydration is performed, the drain pump 130 is turned on after a predetermined time elapses after the start of the rpm increase of the driving motor 119. When the rpm is maintained, the bubble is turned off by turning off the drain pump 130. Allow enough removal.

본 발명은 전술한 실시예에 국한되지 않고 본 발명의 기술사상이 허용하는 범위 내에서 다양하게 변형하여 실시할 수 있다. The present invention is not limited to the above-described embodiments and can be carried out in various modifications within the scope of the technical idea of the present invention.

이와 같이 구성되는 본 발명에 따르면, 드럼 세탁기의 탈수시 드럼 내 거품을 효과적으로 제거할 수 있고, 이에 따라 드럼 회전에 따른 부하를 감소시킬 수 있다.According to the present invention configured as described above, it is possible to effectively remove the bubbles in the drum during dehydration of the drum washing machine, thereby reducing the load due to drum rotation.

Claims (4)

세탁행정시 구동모터의 구동에 의해 드럼 내부에 발생된 거품을 탈수행정시 상기 드럼과 연통되게 설치되는 배수관을 통해 외부로 배출하는 드럼 세탁기의 거품제거방법에 있어서, In the foam washing method of the drum washing machine for discharging the bubbles generated in the drum by the drive of the drive motor during the washing stroke to the outside through the drain pipe installed in communication with the drum during dehydration, 상기 구동모터의 rpm이 변동하는 지를 판단하는 단계; 및Determining whether the rpm of the drive motor varies; And 상기 구동모터의 rpm이 상승하면 배수펌프를 온시키고, 상기 구동모터의 rpm이 하강하면 상기 배수펌프를 오프시켜 상기 배수관의 입수부와 토출부의 기압차를 감소시키는 단계를 포함하는 것을 특징으로 하는 드럼 세탁기의 거품제거방법.And turning off the drain pump when the rpm of the drive motor is increased, and turning off the drain pump when the rpm of the drive motor is lowered, thereby reducing a pressure difference between the inlet and the outlet of the drain pipe. How to remove foam from the washing machine. 제 1 항에 있어서, 상기 탈수행정의 본 탈수 전에 상기 구동모터의 밸런스를 조정하는 상기 탈수행정의 밸런스 탈수시엔 상기 구동모터를 밸런스 조정 전 구동범위 내에서 최대 rpm으로 구동하는 것을 특징으로 하는 드럼 세탁기의 거품제거방법.The drum washing machine according to claim 1, wherein the drive motor is driven at the maximum rpm within the driving range before the balance adjustment when the balance is dewatered in the dehydration stroke, in which the balance of the drive motor is adjusted before the dehydration stroke is dewatered. How to remove bubbles. 삭제delete 제 1 항에 있어서, 상기 구동모터의 밸런스를 조정하는 상기 탈수행정의 밸런스 탈수 완료 후 수행되는 상기 탈수행정의 본 탈수시엔 상기 구동모터의 rpm증가 개시 후 소정 시간이 경과한 시점에서 상기 배수펌프를 온시키고 상기 소정 시간이 경과한 후 상기 구동모터의 rpm이 유지되면 상기 배수펌프를 오프시키는 것을 특징으로 하는 드럼 세탁기의 거품제거방법.The drainage pump of claim 1, wherein when the dehydration stroke is dewatered after completion of the balance dehydration of the dehydration stroke that adjusts the balance of the drive motor, the drainage pump is discharged at a time after a predetermined time has passed since the rpm increase of the drive motor is started. When the rpm of the drive motor is maintained after the predetermined time elapses to turn off the drain pump, characterized in that the drum washing machine.
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