KR960014254B1 - Laundry quantity detecting method of a washing machine - Google Patents

Laundry quantity detecting method of a washing machine Download PDF

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Publication number
KR960014254B1
KR960014254B1 KR1019930022890A KR930022890A KR960014254B1 KR 960014254 B1 KR960014254 B1 KR 960014254B1 KR 1019930022890 A KR1019930022890 A KR 1019930022890A KR 930022890 A KR930022890 A KR 930022890A KR 960014254 B1 KR960014254 B1 KR 960014254B1
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South Korea
Prior art keywords
water
water supply
laundry
impeller
amount
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KR1019930022890A
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Korean (ko)
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KR950011713A (en
Inventor
조웅희
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대우전자 주식회사
배순훈
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Priority to KR1019930022890A priority Critical patent/KR960014254B1/en
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Publication of KR960014254B1 publication Critical patent/KR960014254B1/en

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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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • 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
    • D06F34/08—Control circuits or arrangements thereof
    • 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
    • D06F2103/20—Washing liquid condition, e.g. turbidity

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

Abstract

The method maximizes washing performance and save water used for washing. The method includes the steps of : supplying water into a washing machine(21); reading the rotating speed of a pulsator at the highest level of water(22); calculating the pulsator speed (23); comparing the current speed of pulsator with a reference value; calculating the laundry mass from the difference of the speeds(24); finding whether water supply is accomplished or not(25); draining water to the water level for the laundry mass if water is over-supplied(26); and draining water to the lower water level for laundry mass in order to input detergent and more water (27).

Description

세탁기의 포량감지방법How to detect the amount of washing machine

제1도는 본 발명 세탁기의 포량감지 제어블럭도.1 is a quantity detection control block of the washing machine of the present invention.

제2도는 본 발명 세탁기의 포량감지방법의 플로우챠트.2 is a flow chart of the quantity detection method of the washing machine of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

가 : 키입력부 나 : 급수회전수감지부A: Key input part B: Water supply rotation speed detection part

다 : 수위감지부 라 : 마이콤C: water level detector D: micom

마 : 급배수구동부 바 : 모터구동부E: Drainage and driving part bar: Motor driving part

본 발명은 세탁기의 포량감지방법에 관한 것으로서, 특히 세탁조의 급수부에 임펄러를 장착하여 세탁시 수위센서에 의하여 감지되는 고수위 임펠러회전수와 기설정된 고수위 임펠러회전수와의 비교차로 포량을 감지할 수 있도록 한 세탁기의 포량감지방법에 관한 것이다.The present invention relates to a method for detecting a quantity of a washing machine, and in particular, an impeller is mounted on a water supply unit of a washing tank to detect a quantity of water by comparing a high level impeller rotation speed detected by a water level sensor during washing with a preset high water level impeller rotation speed. It relates to a quantity detection method of a washing machine.

종래의 세탁기에서는 세탁시 세탁하고자 하는 포량은 무게센서에 의하여 감지하고 이 감지된 포량에 기설정된 세탁수를 급수하면서 세탁을 하도록 되어 있었다.In the conventional washing machine, the amount of laundry to be washed at the time of washing is detected by a weight sensor, and washing is performed while water is supplied to the detected amount of water.

그러나 상기 무게센서의 경우 세탁기 자체의 결함으로 인한 오차 즉 모터의 벨트장력, 기어부, 기동캐패시터, 입력되는 전압 및 주파수에 의하여 세탁물의 무게를 정확히 감지할 수 없어, 이로 인하여 기설정된 세탁량에 대한 수위 이하로 급수가 이루어지거나 혹은 그 이상으로 급수가 됨으로 인하여 세탁력 저하는 물론 세탁수를 낭비시키게 되는 문제점을 가지게 되었다.However, in the case of the weight sensor, the weight of the laundry cannot be accurately detected due to an error due to a defect of the washing machine itself, that is, the belt tension of the motor, the gear unit, the starting capacitor, the input voltage and the frequency, and thus the water level for the preset washing amount. Since the water supply is made or less than or equal to the water supply was lowered washing power of course has the problem of wasting the wash water.

따라서 본 발명의 목적은 세탁조로 급수하게 되는 급수부 상에 임펠러를 장착하고 고수위 급수량에 대한 임펠러의 회전수를 설정시켜 놓은 상태에서, 세탁시 급수부를 통해서 급수되는 세탁수위를 수위센서에 의하여 감지된 고수위 급수량에 대한 임펠러회전수와 기설정된 고수위 급수량의 임펠러의 회전수와의 비교차로 세탁하고자 하는 포량을 감지할 수 있는 포량감지방법을 제공하고자 하는데 있으며, 상기의 목적을 실현하기 위하여 본 발명은 세탁시 세탁물의 포량을 감지하는 포량감지방법에 있어서, 임의의 세탁물을 세탁조에 투입하는 세탁물투입단계와, 상기 세탁물투입단계에서 세탁물이 투입되어 있으면 급수부를 통해서 수위센서에 의하여 고수위까지 급수하는 급수단계와, 상기 급수단계에서 수위센서에 의하여 고수위가지 급수된 임펠러의 회전수를 기억하고, 이 기억된 임펠러 회전수와 기설정된 고수위 회전수와의 비교차를 계산하는 회전수비교차 계산단계와, 상기 회전수비교차 계산단계에서 계산된 비교차로 포량을 결정하는 포량결정단계로 이루어짐을 특징으로 한다.Therefore, an object of the present invention is to install the impeller on the water supply to be supplied to the washing tank and in the state of setting the number of revolutions of the impeller for the high water level, the washing water level supplied through the water supply during washing is detected by the water level sensor In order to provide a quantity detecting method capable of detecting a quantity of laundry to be washed by a difference between an impeller rotational speed for a high water supply and a rotational speed of an impeller of a predetermined high water supply, the present invention provides a washing method for realizing the above object. In the quantity detection method for detecting the amount of laundry in the laundry, laundry input step of putting any laundry into the laundry tank, and if the laundry is put in the laundry input step, the water supply step of supplying water to the high water level by the water level sensor through the water supply unit; In the water supply step, the high water level is supplied by the water level sensor A rotation speed difference calculation step of storing the rotation speed of the wheel loader and calculating a comparison difference between the stored impeller speed and the predetermined high water speed speed, and the amount of quantity determined by the comparison difference calculated in the speed difference calculation step Characterized in that the determination step.

이하 첨부된 도면에 의거 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

제1도는 본 발명 세탁기의 포량감지의 개략적인 제어 블록도로서, 일련의 세탁행정 신호를 입력하는 키입력부(가)와, 급수식, 급수되는 급수량에 따라 회전하는 임펠러의 회전수를 감지하는 급수회전수감지부(나)와, 상기 급수시 세탁조에 급수되는 세탁수위를 감지하는 수위감지부(다)와, 상기 키입력부(가), 급수회전수감지부(나), 수위감지부(다)에서 입력된 신호를 소정의 프로그램에 의하여 감지하고, 감지된 신호를 제어하여 제어된 신호를 출력하는 마이콤(라)과, 상기 마이콤(라)의 제어신호에 의하여 세탁조의 세탁수를 급배수하는 급배수구동부(마)와, 상기 마이콤(라)의 제어신호에 의하여 세탁 및 헹굼을 하기 위하여 구동하는 모터구동부(바)로 구성된다.1 is a schematic control block diagram of the quantity detection of the washing machine of the present invention, a key input unit for inputting a series of washing administration signals (A), water supply type, water supply for detecting the rotational speed of the impeller rotating according to the water supply amount In the rotation speed detection unit (b), the water level detection unit (c) for detecting the washing water level supplied to the washing tank during the water supply, the key input unit (a), the water supply rotation speed detection unit (b), and the water level detection unit (c) A microcomputer (D) which detects an input signal by a predetermined program, controls the detected signal and outputs a controlled signal, and a water supply drain that drains the washing water of the washing tank by the control signal of the microcomputer (D). And a motor driving part (bar) driven for washing and rinsing under the control signal of the microcomputer (D).

제2도는 본 발명 세탁기의 포량감지방법에 대한 플로우챠트로서, 임의의 세물을 세탁조에 투입하는 세탁물투입단계(20)와, 상기 세탁물투입단계(20)에서 세탁물이 투입되어 있으면 고수위까지 급수를 하는 급수단계(21)와, 상기 급수단계(21)에서 급수시 수위센서에 의한 고수위까지의 회전하는 임펠러의 회전수를 감지하는 임펠러회전수감지단계(22)와, 상기 임펠러회전수감지단계(22)에서 감지된 임펠러회전수가 기설정된 고수위 임펠러회전수와의 비교차를 계산하는 임펠러회전수계산단계(23)와, 상기 임펠러회전수계산단계(23)에서 계산된 비교차로 포량을 결정하는 포량결정단계(24)와, 상기 포량결정단계(24)에서 결정된 포량에 해당하는 수위로 급수가 되었는가를 판단하는 급수판단단계(25)와, 상기 급수판단단계(25)에서 감지된 포량에 해당하는 수위로 급수가 되어 있지 않았으면, 감지포량의 수위까지 배수하는 제1배수단계(26)와, 상기 급수판단단계(25)에서 감지된 포량의 수위로 급수되어 있으면, 세제투입을 위해 소정단계로 배수하는 제2배수단계(27)와, 상기 배수단계(27)에서 배수완료 후 세제와 함께 상기 감지된 포량의 수위로 될때까지 재급수를 하는 재급수판단단계(28)로 이루어지도록 한 것이다.Figure 2 is a flow chart for the quantity detection method of the washing machine of the present invention, the laundry input step 20 for introducing any washing water into the washing tank, and if the laundry is put in the laundry input step 20 to supply water to a high water level Water supply step 21, the impeller rotation speed detection step 22 for detecting the rotational speed of the impeller to rotate to the high water level by the water level sensor during the water supply step 21, and the impeller rotation speed detection step 22 Determination of the amount of the impeller by the comparison difference calculated in the impeller rotation speed calculation step (23) and the impeller rotation speed calculation step (23) to calculate the difference between the impeller rotation speed detected in Step 24, the water supply judging step 25 for judging whether the water supply at the water level corresponding to the quantity determined in the quantity determination step 24, and the water level corresponding to the amount of water detected in the water supply judging step 25 If the water is not supplied, if the water is supplied to the first drainage step 26 for draining up to the level of the detected amount of water and the level of the amount of water detected in the water supply determination step 25, the water is drained to a predetermined stage for detergent injection. In the second drainage step 27 and the drainage step 27, after the drainage is completed, a rewatering judging step 28 for resupplying the water together with the detergent until the detected water level reaches the level is made.

상기와 같이 이루어지는 본 발명의 작용효과를 설명하면 다음과 같다.Referring to the effects of the present invention made as described above are as follows.

먼저 세탁기의 세탁조에 급수되는 수위에 대하여 고수위에 대한 소정의 회전수를 설정한 상태에서 전원을 인가시키고, 키입력부(가)를 통해서 일련의 세탁행정에 대하여 키선택을 한 후, 임의의 세탁물을 세탁조에 투입하게 되면, 상기 마이콤(라)에서는 세탁물투입단계(20)을 거쳐 고수위급수단계(21)로 가서 급배수구동부(마)를 제어하여 급수밸브를 열어 세탁조의 급수부에 장착된 임펠러를 통해서 세탁조에 고수위까지 급수함과 아울러 모터구동부(바)를 제어하여 펄세이터를 구동시키면서 급수를 시작하게 된다.First, power is supplied with a predetermined number of revolutions for the water level supplied to the washing tank of the washing machine, and a key is selected for a series of washing operations through the key input unit. When it is put into the washing tank, the microcomputer (la) goes to the high water supply stage 21 through the laundry input step 20 to control the water supply and drain drive (e) to open the water supply valve to open the impeller mounted on the water supply of the washing tank Water is supplied to the washing tank to a high water level, and the motor driving part (bar) is controlled to start the water supply while driving the pulsator.

상기와 같이 급수가 시작되면 상기 마이콤(라)에서는 임펠러회전수감지단계(22)로 가서 급수되는 수위가 고수위가 될때까지 수위감지부(다)를 통해서 급수되는 수위를 감지함과 아울러, 급수회전수감지부(나)를 통해서 상기 급수부에 장착된 임펠러의 급수되는 수량에 의하여 회전을 하는 임펠러의 회전수를 감지하게 되는데, 이때 상기 수위감지부(다)에서 감지된 수위는 세탁조에 투입된 임의의 세탁량의 부피 만큼 상승된 수위를 갖게되므로, 실질적인 고수위 상태보다 상기 세탁량의 부피 만큼 빨리 고수위에 도달하게 되어, 실질적으로 기설정된 고수위에 대한 임펠러회전수보다 작은 임펠러회전수에서 고수위상태가 감지되게 되는바, 이와 같이 임펠러회전감지단계(22)에서 수위감지부(다)를 통해서 고수위까지 급수가 완료되면, 상기 마이콤(라)에서는 수위감지부(다)에서 고수위까지 감지되는 동안 급수회전수감지부(나)의 임펠러 회전수를 감지 기억하게 되고, 이어서, 상기 마이콤(라)에서는 임펠러회전수계산단계(23)로 가서 상기 수위감지부(다)에서 고수위까지 감지되는 동안에 기억된 급수회전수감지부(나)에서 감지된 임펠러회전수와 기설정된 고수위에 대한 임펠러회전수와를 비교하여 그 비교차를 계산하고, 상기 마이콤(라)에서는 포량결정단계(24)로 가서 임펠러회전수계산단계(23)에서 계산된 비교차의 회전수에 대하여 기설정된 포량을 결정하게 되는데, 이때 포량결정은 임의의 세탁량만큼 상승된 수위에 의하여 감지된 회전수와 기설정된 고수위를 대한 회전수와의 차에 따라 포량이 결정되게 된다.When the water supply starts as described above, the microcomputer (d) goes to the impeller rotation speed detection step 22 and detects the water level supplied through the water level detection unit (C) until the water level becomes a high level, and the water supply rotation. The water sensing unit (b) detects the number of revolutions of the impeller rotating by the amount of water supplied to the impeller mounted on the water supply unit, wherein the water level detected by the water level sensing unit (c) is input to any washing tank. Since the water level is increased by the volume of the washing amount, the high water level is reached faster by the volume of the washing amount than the actual high water level, so that the high water level is detected at the impeller rotation speed which is substantially smaller than the impeller rotation speed for the predetermined high water level. In this way, when water supply to the high water level is completed through the water level sensor (C) in the impeller rotation detection step 22, the microcomputer (d) to The stand detects and remembers the impeller rotational speed of the water supply rotational speed detection unit (b) while the water level detection unit (c) detects the high water level. Then, the microcomputer (d) goes to the impeller rotational speed calculation step (23). Comparing the impeller rotational speed detected by the water supply rotational speed sensing unit (b) and the impeller rotational speed for the predetermined high water level while detecting the high water level in the sensing unit (c), and calculating the comparison difference, ), Go to the capacity determination step (24) to determine the predetermined amount of the rotation speed of the comparison vehicle calculated in the impeller rotation speed calculation step (23), where the determination of the capacity is detected by the water level raised by an arbitrary washing amount According to the difference between the set speed and the predetermined high water level, the amount of the dose is determined.

상기와 같이 포량이 결정되면, 상기 마이콤(라)에서는 급수판단단계(25)로 가서 상기 포량결정단계(24)에서 결정된 포량에 해당하는 급수수위인가를 판단하게 되고 이때 상기 결정된 포량에 해당하는 급수수위가 아니면, 상기 마이콤(라)에서는 제1배수단계(26)로 가서 급배수구동부(마)를 제어하여 배수밸브를 열어 상기 포량에 해당하는 수위가 되도록 배수를 시킨다.When the amount is determined as described above, the microcomputer (d) goes to the water supply determination step 25 to determine whether the water level corresponds to the amount determined in the amount determination step 24, and at this time, the water supply corresponding to the determined amount If it is not at the water level, the microcomputer (d) goes to the first drainage step 26 and controls the water supply and drainage drive part (e) to open the drain valve to drain the water so that the water level corresponds to the above-mentioned amount.

그러나 상기 급수판단단계(25)에서 결정된 포량에 해당하는 급수수위이면 상기 마이콤(라)에서는 제2배수단계(27)로 가서 상기 급수수위에서 한단계 아래의 수위가 되도록 상기 마이콤(라)에서는 급배수구동부(마)를 제어하여 배수밸브를 열어 배수를 한다.However, if the water supply level corresponding to the quantity determined in the water supply determination step 25, the microcomputer (d) goes to the second drainage stage (27) so that the water supply drain in the microcomputer (d) to be one level below the water supply level. Control the eastern part (e) and open the drain valve to drain.

상기와 같이 배수가 완료되면, 상기 마이콤(라)에서는 재급수판단단계(28)로 가서 급배수구동부(마)의 급배수구동부(마)를 제어하여 급수밸브를 열어 급수와 아울러, 세제를 상기 결정된 포량에 해당하는 수위까지 급수를 하고, 상기 키입력부(가)에서 입력된 일련의 세탁행정으로 세탁을 진행하게 되는 것이다.When the drainage is completed as described above, the microcomputer (d) goes to the water supply judging step 28 to control the water supply and drainage part (e) of the water supply and drainage part (e) to open the water supply valve to supply water and the detergent. The water is supplied to the water level corresponding to the determined amount of water, and the washing is performed by a series of washing operations input from the key input unit (a).

상기에서 설명한 바와 같이 본 발명은 세탁시, 세탁조로 급수하는 급수부에 임펠러를 장착하여 급수시 임펠러의 회전수와 기설정된 임펠러의 회전수와의 비교 회전수차에 의하여 포량을 결정하도록 함으로써, 세탁기의 자체 결함에 의한 오차로 정확한 급수가 이루어지지 않음으로 인해서 야기되는 세탁력저하는 물론 세탁수를 낭비하게 되는 문제점을 해소할 수 있는 효과를 제공하게 되는 것이다.As described above, according to the present invention, an impeller is mounted on a water supply unit for supplying water to a washing tank to determine a quantity based on a comparison aberration between the rotational speed of the impeller and the preset rotational speed of the washing machine. It is to provide an effect that can solve the problem of the waste of washing water, as well as the washing force caused by the lack of accurate water supply due to the error due to its own defects.

Claims (1)

세탁시 세탁하고자 하는 포량을 감지하는 포량감지방법에 있어서, 임의의 세탁물을 세탁조에 투입하는 세탁물투입단계(20)와, 상기 세탁물투입단계(20)에서 세탁물이 투입되어 있으면 고수위까지 급수를 하는 급수단계(21)와, 상기 급수단계(21)에서 급수시 수위센서에 의한 고수위까지의 회전하는 임펠러의 회전수를 감지하는 임펠러회전수감지단계(22)와, 상기 임펠러회전수감지단계(22)에서 감지된 임펠러회전수가 기설정된 고수위 임펠러회전수와의 비교차를 계산하는 임펠러회전수계산단계(23)와, 상기 임펠러회전수계산단계(23)에서 계산된 비교차로 포량을 결정하는 포량결정단계(24)와, 상기 포량결정단계(24)에서 결정된 포량에 해당하는 수위로 급수가 되었는가를 판단하는 급수판단단계(25)와, 상기 급수판단단계(25)에서 감지된 포량에 해당하는 수위로 급수가 되어 있지 않았으면, 감지포량의 수위까지 배수하는 제1배수단계(26)와, 상기 급수판단단계(25)에서 감지된 포량의 수위로 급수되어 있으면, 세제투입을 위해 소정단계로 배수하는 제2배수단계(27)로 이루어짐을 특징으로 하는 세탁기의 포량감지방법.In the quantity detection method for detecting the amount of laundry to be washed at the time of washing, the laundry input step (20) for putting any laundry into the laundry tank, and if the laundry is put in the laundry input step 20, the water supply to the high water supply Step 21, the impeller rotation speed detection step 22 for detecting the rotation speed of the rotating impeller to the high water level by the water level sensor in the water supply step 21, and the impeller rotation speed detection step 22 The impeller rotational speed calculating step 23 calculates a comparison difference with the impeller rotational speed detected by the impeller rotational speed preset in step 23, and the quantity determination step of determining a quantity by the comparative difference calculated in the impeller rotational speed calculating step 23 (24), a water supply judging step 25 for judging whether water is supplied to the water level corresponding to the amount of water determined in the quantity determination step 24, and the amount of water detected in the water supply judging step 25 If it is not watered up, the first drainage step 26 for draining to the level of the sensing amount of water, and if the water supply at the level of the amount of water detected in the water supply determination step 25, drained to a predetermined step for the detergent injection The quantity detection method of the washing machine, characterized in that the second drainage step (27) made.
KR1019930022890A 1993-10-30 1993-10-30 Laundry quantity detecting method of a washing machine KR960014254B1 (en)

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