KR19990065538A - How to detect the quantity of drum washing machine - Google Patents

How to detect the quantity of drum washing machine Download PDF

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Publication number
KR19990065538A
KR19990065538A KR1019980000872A KR19980000872A KR19990065538A KR 19990065538 A KR19990065538 A KR 19990065538A KR 1019980000872 A KR1019980000872 A KR 1019980000872A KR 19980000872 A KR19980000872 A KR 19980000872A KR 19990065538 A KR19990065538 A KR 19990065538A
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amount
change
reference value
washing machine
motor
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KR1019980000872A
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Korean (ko)
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KR100290234B1 (en
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박찬영
손권
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구자홍
엘지전자 주식회사
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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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • 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
    • 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
    • D06F2103/24—Spin speed; Drum movements
    • 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
    • D06F2103/38—Time, e.g. duration

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

Abstract

포량감지의 정확도를 향상시킬 수 있도록 한 드럼세탁기의 포량감지방법에 관한 것으로, 드럼세탁기의 포량감지방법에 있어서, 세탁을 시작하여 설정속도까지 모터를 가속시키고 가속에 소요되는 시간을 측정하는 단계와, 설정속도로 모터를 회전시켜 모터회전수의 변화량을 측정하는 단계와, 가속시간과 모터회전수 변화량을 각각의 기준치와 비교하여 포량을 감지하는 단계를 포함하여 이루어지므로 세탁기의 신뢰성을 향상시킬 수 있다.A laundry washing method for a drum washing machine for improving the accuracy of the quantity detecting method, the laundry washing method for a drum washing machine comprising the steps of: starting washing and accelerating the motor to a set speed; It is possible to improve the reliability of the washing machine by rotating the motor at the set speed and measuring the amount of change in the motor speed, and detecting the amount of load by comparing the acceleration time and the amount of change in the motor speed with each reference value. have.

Description

드럼세탁기의 포량감지방법How to detect the quantity of drum washing machine

본 발명은 세탁기에 관한 것으로서, 특히 드럼세탁기의 포량감지방법에 관한 것이다.The present invention relates to a washing machine, and more particularly, to a quantity detection method of a drum washing machine.

일반적으로 세탁기는 기설정된 알고리즘에 따라 세탁, 헹굼 및 탈수행정을 수행하여 세탁물을 세탁하는 기계장치로서, 세탁방식에 따라 펄세이터식, 교반식, 드럼식 등으로 구분된다.Generally, a washing machine is a machine for washing laundry by performing washing, rinsing, and dehydrating strokes according to a predetermined algorithm. The washing machine is classified into a pulsator type, a stirring type, a drum type, and the like according to a washing method.

이때 드럼세탁기는 도 1에 도시된 바와 같이, 본체(1), 상기 본체(1) 내부에 댐퍼(도시 생략)에 의해 고정된 터브(2), 상기 터브(2)내에 세탁물이 투입되고 모터(10)의 구동력을 밸트(11)를 통해 전달받아 회전하여 세탁관련행정이 이루어지는 드럼(3), 상기 드럼(3)에 공급된 세척수의 온도를 측정하기 위한 써미스터(4), 세제를 투입하기 위한 세제통(5), 상기 세제통(5)과 연결되어 세척수 또는 상기 세제통(5)의 세제가 혼합된 세척수를 급수하기 위한 급수관(6), 세탁행정에서 사용된 세척수를 외부로 배출하기 위한 배수관(7), 상기 배수관(7) 끝단에 연결되어 세척수를 강제로 펌핑하기 위한 펌프(8) 및 배수호스(9)를 포함하여 구성된다.At this time, as shown in FIG. 1, the drum washing machine includes a main body 1, a tub 2 fixed by a damper (not shown) inside the main body 1, and laundry into the tub 2 and a motor ( The driving force of 10) is transmitted through the belt 11 to rotate the drum 3 for washing-related stroke, the thermistor 4 for measuring the temperature of the washing water supplied to the drum 3, and to input detergent. Detergent container (5), the water supply pipe (6) for supplying the washing water or the washing water mixed with the detergent of the detergent container (5) connected to the detergent container (5), drain pipe for discharging the washing water used in the washing stroke to the outside (7) ) Is connected to the end of the drain pipe (7) and comprises a pump (8) and a drain hose (9) for forcibly pumping the washing water.

그리고 이와 같이 구성된 드럼세탁기의 동작을 살펴보면, 먼저 사용자가 본체(1) 전면에 부착된 도어(도시 생략)를 열고 세탁물을 투입한 다음 컨트롤 패널을 통해 세탁명령을 입력한다.And looking at the operation of the drum washing machine configured as described above, first, the user opens the door (not shown) attached to the front of the main body 1, puts the laundry, and then inputs the washing command through the control panel.

이어서 제어부(도시 생략)는 드럼(3)내로 투입된 세탁물의 양 즉, 포량을 감지하고 감지된 포량에 상응하여 설정된 수위만큼의 세척수를 상기 세제통(5)을 통해 급수관(6)의 안내를 받아 드럼(7)내로 채운다.Subsequently, the controller (not shown) detects the amount of laundry introduced into the drum 3, that is, the quantity of laundry, and receives the washing water of the water level corresponding to the detected quantity of water by the water supply pipe 6 through the detergent container 5. (7) We fill in.

그리고 세척수가 일정수위 이상으로 채워지면 모터(10)가 구동하고 드럼(3)이 회전하여 세탁이 진행된다.When the washing water is filled above a certain level, the motor 10 is driven and the drum 3 rotates to perform washing.

이어서 세탁이 완료되면 펌프(8)가 동작하여 세척수가 상기 배수관(7) 및 배수호스(9)를 경유하여 외부로 배수되고 배수가 완료되면 계속해서 헹굼, 탈수행정이 수행되어 세탁행정이 종료된다.Subsequently, when the washing is completed, the pump 8 is operated so that the washing water is drained to the outside via the drain pipe 7 and the drain hose 9, and when the draining is completed, the rinsing and dehydration stroke is continuously performed to terminate the washing administration. .

이하, 종래의 기술에 따른 드럼세탁기의 포량감지방법을 설명하면 다음과 같다.Hereinafter, a description will be given of the capacity detection method of the drum washing machine according to the prior art.

종래의 기술에 따른 드럼세탁기는 드럼(3)을 기설정된 속도까지 가속시키는데 소요되는 시간을 기준으로 포량감지동작을 수행되는데, 포량이 많으면 가속시간이 증가하고 포량이 상대적으로 적으면 가속시간이 감소하는 원리를 이용하여 일정가속시간 및 그에 따른 포량값을 기준으로 설정하고 현재 포량에 따른 가속시간과 비교하여 포량을 판단한다.The drum washing machine according to the related art performs a capacity detection operation based on the time required for accelerating the drum 3 to a predetermined speed. If the quantity is large, the acceleration time increases, and if the quantity is relatively small, the acceleration time decreases. Using the principle that is set by the constant acceleration time and the amount of the corresponding dose value is determined as a reference and compared with the acceleration time according to the current amount to determine the quantity.

또한 탈수초기에 상기 설정속도로 드럼(3)을 회전시킬 때 드럼(3)내에 있는 세탁물의 언발란스에 의해 회전속도가 상승 또는 하강하는 등 변화를 보이게 되는데, 그 상승 또는 하강폭도 포량에 따라 변하게 된다.In addition, when the drum 3 is rotated at the set speed in the initial stage of dehydration, the rotational speed increases or decreases due to the unbalance of the laundry in the drum 3, and the rising or falling width is also changed according to the quantity of the cargo. .

즉, 포량이 적을수록 회전속도의 변화폭이 크고 포량이 많을수록 회전속도의 변화폭이 적으며, 동일한 언발란스양일 경우 회전속도의 변화폭이 크면 포량이 적고 회전속도의 변화폭이 적으면 포량이 많은 것으로 판단한다.In other words, the smaller the amount of change, the larger the change of rotation speed, and the larger the amount of change, the smaller the change of rotation speed. In case of the same unbalance amount, the larger the change of rotation speed, the smaller the amount of change and the smaller the change of rotation speed, it is determined that the amount of change is large.

그리고 탈수초기에 모터회전수의 변화량에 따라 언발란스 발생여부를 감지한다.In the initial stage of dehydration, it detects the occurrence of unbalance according to the change of motor speed.

즉, 현재의 모터회전수 변화량을 측정하고 이를 기준모터회전수 변화량과 비교하여, 현재의 모터회전소 변화량이 기준모터회전수 변화량보다 적으면 언발란스 발생량이 탈수행정에 지장을 초래하지 않는 것으로 판단하고 탈수를 수행한다.In other words, by measuring the current motor speed change and comparing it with the standard motor speed change, if the current motor speed change is less than the standard motor speed change, it is judged that the unbalance generation amount does not interfere with the dewatering operation. Perform dehydration.

종래의 기술에 따른 드럼세탁기의 포량감지방법은 가속시간에 따라 포량을 감지하므로 세탁포의 수분함유정도 또는 공급전압의 변화 등이 발생할 경우 포량감지에러가 발생하는 문제점이 있다.In the conventional laundry washing machine according to the prior art, the detection amount of the laundry is detected according to the acceleration time, and thus there is a problem in that the detection amount of the laundry occurs when the moisture content or supply voltage of the laundry cloth changes.

따라서 본 발명은 상기한 종래의 문제점을 해결하기 위하여 안출한 것으로서 포량감지에러발생을 방지하여 포량감지의 정확도를 향상시킬 수 있도록 한 드럼세탁기의 포량감지방법을 제공함에 그 목적이 있다.Accordingly, an object of the present invention is to provide a laundry washing method for a drum washing machine, which can improve the accuracy of the sensing of the laundry by preventing the occurrence of a quantity sensing error.

도 1은 일반적인 드럼세탁기의 구조를 나타낸 단면도1 is a cross-sectional view showing the structure of a general drum washing machine

도 2는 본 발명에 따른 드럼세탁기의 포량감지방법을 나타낸 플로우챠트Figure 2 is a flow chart illustrating a detection method of the drum washing machine according to the present invention

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

1: 본체 2: 터브1: body 2: tub

3: 드럼 4: 써미스터3: drum 4: thermistor

5: 세제통 6: 급수관5: detergent container 6: water pipe

7: 배수관 8: 펌프7: drain pipe 8: pump

9: 배수호스 10: 모터9: drain hose 10: motor

11: 밸트11: belt

본 발명은 세탁을 시작하여 설정속도까지 모터를 가속시키고 가속에 소요되는 시간을 측정하는 단계와, 설정속도로 모터를 회전시켜 모터회전수의 변화량을 측정하는 단계와, 가속시간과 모터회전수 변화량을 각각의 기준치와 비교하여 포량을 감지하는 단계를 포함하여 이루어짐을 특징으로 한다.The present invention includes the steps of starting the washing to accelerate the motor to the set speed and measuring the time required for acceleration, and measuring the amount of change in the motor speed by rotating the motor at the set speed, the acceleration time and the amount of change in the motor speed It is characterized in that it comprises a step of detecting the quantity compared to each reference value.

이하, 첨부한 도면을 참조하여 본 발명에 따른 드럼세탁기의 포량감지방법을 살펴보면 다음과 같다.Hereinafter, with reference to the accompanying drawings, look at the amount of detection of the drum washing machine according to the present invention.

도 2는 본 발명에 따른 드럼세탁기의 포량감지방법을 나타낸 플로우챠트이다.Figure 2 is a flow chart illustrating a detection method of the drum washing machine according to the present invention.

먼저, 본 발명에 따른 드럼세탁기는 포량감지의 정확도를 향상시키기 위하여 가속시간(t) 이외에 모터회전속도 변화량(Δrpm)을 포량감지를 수행하기 위한 판단요소로 적용한다.First, the drum washing machine according to the present invention applies the motor rotation speed change amount Δrpm in addition to the acceleration time t as a determining element for carrying out the capacity detection in order to improve the accuracy of the capacity detection.

이어서 본 발명에 따른 드럼세탁기의 포량감지방법은 도 2에 나타낸 바와 같이, 사용자의 세탁명령에 따라 세탁을 시작하여(S21), 설정속도까지 모터(10)를 가속시킨다(S22).Subsequently, in the drum washing machine according to the present invention, as shown in FIG. 2, the washing machine starts washing according to a washing instruction of the user (S21) and accelerates the motor 10 to a set speed (S22).

그리고 상기 가속에 소요되는 시간(t)을 측정한다(S23).Then, the time t required for the acceleration is measured (S23).

이어서 상기 설정속도로 모터를 회전시켜(S24), 드럼(3)내부의 세탁물상태에 따른 모터회전속도 변화량(Δrpmn)을 측정한다(S25).Subsequently, by rotating the motor at the set speed (S24), the change amount of the motor rotational speed (Δrpm n ) according to the laundry state inside the drum 3 is measured (S25).

그리고 상기 가속시간(t) 및 모터회전속도 변화량(Δrpmn)을 기준값으로 포량을 감지한다(S26).Then, the amount of detection is detected based on the acceleration time (t) and the motor rotation speed change amount (Δrpm n ) (S26).

이때 포량을 감지하는 세부동작은 다음과 같다.At this time, the detailed operation of detecting the quantity is as follows.

이때 포량감지동작을 수행하기 앞서, 모터회전속도 변화량을 세분화하기 위하여 모터회전속도 변화량 높음(ΔrpmH), 모터회전속도 변화량 매우 높음(ΔrpmHH) 등의 기준값을 설정한다.At this time, before performing the quantity detection operation, in order to subdivide the amount of change in the motor rotation speed, reference values such as a high amount of change in motor rotation speed (Δrpm H ) and a very high amount of change in motor rotation speed (Δrpm HH ) are set.

그리고 현재 측정된 모터회전속도 변화량(Δrpmn)을 상기 ΔrpmH,ΔrpmHH과 비교하여 현재 측정된 모터회전속도 변화량(Δrpmn)의 크기를 판단한다.Then, the magnitude of the currently measured motor speed change amount Δrpm n is determined by comparing the currently measured motor speed change amount Δrpm n with the Δrpm H and Δrpm HH .

이어서 상기 판단결과 Δrpmn이 매우 높고 측정된 가속시간이 짧으면 가속시간이 포량과 비례하고 Δrpmn이 포량에 반비례하는 특성을 동시에 만족하므로 포량이 적은 것으로 감지한다.Subsequently, when the determination result is Δrpm n is very high and the measured acceleration time is short, it is detected that the acceleration amount is small because the acceleration time is proportional to the quantity and Δrpm n is inversely proportional to the quantity.

한편, Δrpmn이 매우 높고 측정된 가속시간이 길면 포량이 적은 것으로 감지한다.On the other hand, if Δrpm n is very high and the measured acceleration time is long, it is sensed that the amount is small.

이때 가속시간만으로 포량을 판단할 경우 전압변동 등으로 가속시간이 길어질 경우 포량이 많은 것으로 오판할 수 있다.In this case, when the amount of acceleration is determined only by the acceleration time, if the acceleration time becomes longer due to voltage fluctuation, it may be mistaken as having a large amount of capacity.

따라서 가속시간이 길더라도 Δrpmn이 매우 높으므로 포량이 적은 것으로 감지한다.Therefore, even if the acceleration time is long, Δrpm n is very high, so it is detected as small amount.

한편, Δrpmn이 낮고 측정된 가속시간이 짧으면 포량이 많은 것으로 감지한다.On the other hand, if Δrpm n is low and the measured acceleration time is short, it is sensed as having a large quantity.

그리고 상기 단계(S26)에서 감지된 포량에 상응하도록 세척수를 급수하여 세탁을 진행한다(S27).In addition, washing is performed by supplying the washing water so as to correspond to the amount detected in step S26 (S27).

본 발명에 따른 드럼세탁기의 포량감지방법은 가속시간 및 모터회전수의 변화량을 파악하고 이 두가지 요소를 동시에 기준으로 설정하여 포량을 감지하므로 포량감지에러를 방지함과 동시에 포량감지의 정확성을 향상시켜 세탁성능 및 그에 따른 세탁기 신뢰성을 향상시킬 수 있는 효과가 있다.The drum washing machine according to the present invention detects the amount of change in the acceleration time and the number of revolutions of the motor, and sets the two factors at the same time to detect the amount of capacity, thereby preventing the quantity detection error and at the same time improve the accuracy of the quantity detection There is an effect that can improve the washing performance and thereby the washing machine reliability.

Claims (3)

드럼세탁기의 포량감지방법에 있어서,In the laundry washing method of the drum washing machine, 세탁을 시작하여 설정속도까지 모터를 가속시키고 가속에 소요되는 시간을 측정하는 단계;Starting washing to accelerate the motor to a set speed and measuring time required for acceleration; 상기 설정속도로 모터를 회전시켜 모터회전수의 변화량을 산출하는 단계;Calculating a change amount of the motor speed by rotating the motor at the set speed; 상기 가속시간과 모터회전수 변화량을 각각의 기준치와 비교하여 포량을 감지하는 단계를 포함하여 이루어짐을 특징으로 하는 드럼세탁기의 포량감지방법.And a step of detecting a quantity of gas by comparing the acceleration time and the amount of change of the motor speed with each reference value. 제 1 항에 있어서,The method of claim 1, 상기 가속시간과 모터회전수 변화량을 각각의 기준치와 비교하여 포량을 감지하는 단계는The step of detecting the amount of discharge by comparing the acceleration time and the motor speed change with each reference value 상기 가속시간이 기준치보다 짧고 모터회전수 변화량이 기준치보다 크면 포량이 기준치보다 적은 것으로 감지하는 단계와,If the acceleration time is shorter than the reference value and the amount of change in the motor speed is larger than the reference value, detecting that the amount of the gun is smaller than the reference value; 가속시간이 기준치보다 짧고 모터회전수 변화량이 기준치보다 적으면 포량이 기준치보다 큰 것으로 감지하는 단계와,If the acceleration time is shorter than the reference value and the amount of change in the motor speed is smaller than the reference value, detecting that the quantity is larger than the reference value, 가속시간이 기준치보다 길고 모터회전수 변화량이 기준치보다 크면 포량이 기준치보다 적은 것으로 감지하는 단계와,If the acceleration time is longer than the reference value and the motor speed change is greater than the reference value, the step of detecting that the amount less than the reference value, 가속시간이 기준치보다 길고 모터회전수 변화량이 기준치보다 적으면 포량이 기준치보다 큰 것으로 감지하는 단계로 이루어짐을 특징으로 하는 드럼세탁기의 포량감지방법.If the acceleration time is longer than the reference value and the amount of change in the motor speed is less than the reference value, the detection amount of the drum washing machine comprising the step of detecting that the larger than the reference value. 제 1 항에 있어서,The method of claim 1, 감지성능향상을 위하여 상기 가속시간 측정단계와 모터회전수 변화량 산출단계를 일정회 반복하여 포량감지단계를 수행함을 특징으로 하는 드럼세탁기의 포량감지방법.A method of detecting a washing machine of a drum washing machine, characterized in that the step of detecting the acceleration time and the step of calculating the amount of change in the motor speed are repeated a predetermined time to improve the detection performance.
KR1019980000872A 1998-01-14 1998-01-14 Method for sensing amount of clothing of drum type washing machine KR100290234B1 (en)

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Cited By (7)

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KR100701949B1 (en) * 2005-02-14 2007-03-30 엘지전자 주식회사 Detecting method for laundary weight of drum type washing machine
EP3617363A1 (en) 2018-08-30 2020-03-04 LG Electronics Inc. -1- Artificial intelligence laundry treatment apparatus and method of controlling the same
EP3617365A1 (en) 2018-08-30 2020-03-04 LG Electronics Inc. -1- Artificial intelligence laundry treatment apparatus and method of controlling the same
KR20200025554A (en) 2018-08-30 2020-03-10 엘지전자 주식회사 Method of controlling laundry treating apparatus
US11261554B2 (en) 2019-10-07 2022-03-01 Lg Electronics Inc. Washing apparatus and control method thereof
US11466389B2 (en) 2019-10-02 2022-10-11 Lg Electronics Inc. Washing apparatus and control method thereof
US11641971B2 (en) 2019-08-05 2023-05-09 Lg Electronics Inc. Method for extracting coffee

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KR940015032A (en) * 1992-12-22 1994-07-20 윤종용 How to detect laundry weight of drum washing machine

Cited By (11)

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Publication number Priority date Publication date Assignee Title
KR100701949B1 (en) * 2005-02-14 2007-03-30 엘지전자 주식회사 Detecting method for laundary weight of drum type washing machine
EP3617363A1 (en) 2018-08-30 2020-03-04 LG Electronics Inc. -1- Artificial intelligence laundry treatment apparatus and method of controlling the same
EP3617365A1 (en) 2018-08-30 2020-03-04 LG Electronics Inc. -1- Artificial intelligence laundry treatment apparatus and method of controlling the same
KR20200025555A (en) 2018-08-30 2020-03-10 엘지전자 주식회사 Method of controlling laundry treating apparatus
KR20200025554A (en) 2018-08-30 2020-03-10 엘지전자 주식회사 Method of controlling laundry treating apparatus
KR20200025556A (en) 2018-08-30 2020-03-10 엘지전자 주식회사 Method of controlling laundry treating apparatus
EP3623513A1 (en) 2018-08-30 2020-03-18 Lg Electronics Inc. Artificial intelligence laundry treatment apparatus and method of controlling the same
EP3913126A1 (en) 2018-08-30 2021-11-24 LG Electronics Inc. Artificial intelligence laundry treatment apparatus and method of controlling the same
US11641971B2 (en) 2019-08-05 2023-05-09 Lg Electronics Inc. Method for extracting coffee
US11466389B2 (en) 2019-10-02 2022-10-11 Lg Electronics Inc. Washing apparatus and control method thereof
US11261554B2 (en) 2019-10-07 2022-03-01 Lg Electronics Inc. Washing apparatus and control method thereof

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